JP2018138062A - Performance monitoring device, performance monitoring system, and performance monitoring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a performance monitoring device, a performance monitoring system, a performance monitoring method and the like capable of appropriately outputting information on performance in water sports. A performance monitoring device 10 is a performance monitoring device for water sports, and a storage unit 11 stores information related to the positions of first to Mth (M is an integer of 2 or more) targets. Information related to the position of the user performing water sports is acquired, and information on the degree of divergence of the user with respect to the water channel connecting the i-th target (i is an integer of 1 ≦ i ≦ M−1) and the i + 1th target is obtained. A processing unit 12 to be obtained and an output unit 13 for outputting the divergence degree information are included. [Selection] Figure 1

Description

  The present invention relates to a performance monitoring device, a performance monitoring system, a performance monitoring method, and the like.

  Conventionally, water sports that move underwater or on the water are widely performed. Some water sports set a water channel (course) between predetermined targets and move along the water channel. For example, a triathlon swim is a so-called open water swim, where the athlete goes straight to a buoy (for example, a 5m high columnar buoy) installed at a corner of a wide course such as the sea or lake. Need to swim.

  In many cases, the open water swim course does not have a course rope, and the athlete visually confirms the buoy by head-up during the swim. However, the head-up has a large physical loss, and as a result of relying on the direction of other competitors without confirming the buoy, many athletes remarkably waste their physical strength and time by swimming in the wrong direction.

  Patent Document 1 discloses an exercise performance monitoring apparatus that uses GPS (Global Positioning System) to guide a user to a home marker or a waypoint position. This exercise performance monitoring device is described for use in various sports such as walking, running, and triathlon.

Japanese Patent Laying-Open No. 2015-132612

  For example, if the position of the buoy is registered as a waypoint with respect to the athletic performance monitoring device of Patent Document 1, it is considered that the user (athlete) who is swimming can be guided in the direction of the buoy. However, even if the user intends to swim straight toward the buoy, it will meandering unconsciously and swimming longer than necessary due to tides, waves, and how to swim.

  Further, the method of Patent Document 1 performs guidance from the current position of the user to the position of a target such as a buoy, and does not consider the degree of deviation from the prescribed course. Therefore, a method for appropriately outputting information on the degree of deviation is not disclosed.

  According to some aspects of the present invention, it is possible to provide a performance monitoring device, a performance monitoring system, a performance monitoring method, and the like that can appropriately output information on performance in water sports.

  One aspect of the present invention is a performance monitoring device for water sports, wherein the storage unit stores information related to the positions of the first to Mth (M is an integer of 2 or more) targets, and the water sports. Processing for obtaining information related to the position of the user to be performed and obtaining information on the degree of divergence of the user with respect to the water channel connecting the i th target (i is an integer of 1 ≦ i ≦ M−1) and the i + 1 th target And a performance monitoring device including an output unit that outputs the divergence degree information.

  In one aspect of the present invention, calculation and output of user divergence information with respect to a waterway connecting two targets is performed. In this way, the degree of deviation from the waterway (course) can be objectively grasped by the user, and water sports can be performed efficiently or safely.

  In the aspect of the invention, the divergence degree information may be information representing a distance between the water channel and the position of the user.

  If it does in this way, it will become possible to output the shift of the position to a channel as divergence degree information.

  In the aspect of the invention, the divergence degree information may be information indicating a divergence degree of the movement distance information of the user with respect to the distance information of the water channel.

  If it does in this way, it will become possible to output deviation of actual movement distance to distance (setting distance) of a waterway as deviation degree information.

  In one aspect of the present invention, the divergence degree information includes difference information and ratio information between a waterway distance represented by the distance information of the waterway and a movement distance represented by the movement distance information of the user. At least one may be sufficient.

  If it does in this way, it will become possible to output the information which shows the difference or ratio of the actual movement distance to the distance (setting distance) of a waterway as deviation degree information.

  Moreover, in one aspect of the present invention, the divergence degree information includes the total movement distance information of the user with respect to the total distance information of the water channel connecting three or more of the first to Mth targets. Information indicating the degree of deviation may be included.

  In this way, it is possible to output divergence information for a longer section without being limited to adjacent targets.

  In the aspect of the invention, the output unit may be a display unit, and the display unit may display the divergence information.

  In this way, it is possible to present (notify) the divergence degree information to the user by the display on the display unit.

  In the aspect of the invention, the display unit may display the divergence degree information with higher visibility than other information.

  In this way, it is possible to display the divergence degree information in a manner that can be easily recognized by the viewer (user).

  In the aspect of the invention, the output unit may output the deviation information by at least one of vibration, light, and sound.

  In this way, the divergence degree information can be output (notified) to the user according to various aspects.

  In the aspect of the invention, the output unit may vary the output mode of the divergence degree information according to the degree of divergence.

  In this way, it is possible to appropriately output deviation degree information according to the degree of deviation.

  In the aspect of the invention, the output unit may change the output mode of the divergence degree information between when the user is determined to be in a resting state and when the user is determined to be in an exercise state. Good.

  In this way, it is possible to appropriately output the deviation information according to the state of the user's activity.

  In the aspect of the invention, the output unit may change the output mode of the divergence degree information according to the option setting of the user.

  In this way, it is possible to appropriately output the deviation information according to the option setting.

  In one aspect of the present invention, at least one of the first to Mth targets is a moving target, and the processing unit performs an update process of information related to the position of the moving target. You may go.

  In this way, even when the target moves, it becomes possible to appropriately output the deviation information.

  According to another aspect of the present invention, there is provided a performance monitoring system for water sports, wherein the storage unit stores information related to the positions of the first to Mth (M is an integer of 2 or more) targets, and the water Information relating to the position of the user performing the sport is acquired, and the divergence information of the user with respect to the water channel connecting the i th target (i is an integer of 1 ≦ i ≦ M−1) and the i + 1 th target is obtained. The present invention relates to a performance monitoring system including a processing unit to be obtained and an output unit that outputs the divergence degree information.

  Moreover, the other aspect of this invention is a performance monitoring method of water sports, Comprising: The information relevant to the position of the 1st-1st M (M is an integer greater than or equal to 2) target object is acquired, and the said water sports are performed. Obtaining information related to the position of the user, obtaining information on the degree of divergence of the user with respect to the water channel connecting the i th target (i is an integer of 1 ≦ i ≦ M−1) and the i + 1 th target, This is related to the performance monitoring method that outputs divergence information.

Configuration example of a performance monitoring device. Overview of performance monitoring system. Enlarged view of the user. The enlarged view of a user terminal. Configuration example of performance monitoring system. The figure explaining the example of a crawl. The figure explaining the example of course information. Explanatory drawing of divergence degree information. The example of a display screen of information including deviation information. Explanatory drawing of divergence degree information. The example of a display screen of information including deviation information. The example of a display screen of information including deviation information. Explanatory drawing of divergence degree information. The example of a display screen of information including deviation information. Explanatory drawing of divergence degree information. The example of a display screen of information including deviation information. The example of a display screen of information including deviation information. An example of information displayed in an exercise state and a rest state. The flowchart explaining the process of this embodiment.

  Hereinafter, this embodiment will be described. In addition, this embodiment demonstrated below does not unduly limit the content of this invention described in the claim. In addition, all the configurations described in the present embodiment are not necessarily essential configuration requirements of the present invention.

  First, an outline of the method of the present embodiment will be described, and then a system configuration example of the performance monitoring device 10 and the like, and a course (water channel) setting example will be described. Then, the details of the divergence degree information will be described, and finally, the processing flow of the present embodiment will be described using a flowchart.

1. First, the method of this embodiment will be described. In recent years, various water sports have been actively performed. Water sports widely include sports performed underwater or on the water, and among them, a given course (course 100C in the example of FIG. 2 to be described later) is set in the water and sports that move in the course There is also. Examples of such sports include OWS (open water swimming), kayaking, canoeing, rafting, SUP (Stand Up Paddle), windsurfing, and kite board. In these water sports, a mode in which a user can freely move without setting a specific course is conceivable. Here, a mode in which a course is set is assumed.

  OWS is a long-distance swimming competition held in natural waters such as the sea, rivers and lakes. Some competitions only involve swimming, while others, like triathlons, may swim as one of multiple events. Kayaks, canoes, and rafts are all small boats that generally move by paddling them with water. The SUP moves by standing on a board shaped like a surfboard and draining it with a paddle. Windsurfing is a sport that uses a board on which a user rides and a sail attached to the board, and moves by receiving wind on the sail. A kite board is a sport that uses a board and a kite on which the user rides, and uses the lift generated by the wind flowing on the surface of the kite (canopy) as a propulsive force.

  In these water sports, it is difficult for the athlete to accurately recognize the set course (ideal line). This is because water sports have fewer objects available for course recognition than sports that travel on land.

  For example, in the case of running or bicycling, since it moves mainly on a road (roadway), many objects such as road surface displays, curbs, and buildings along the road naturally enter the user's view. Therefore, it is easy to recognize in which direction the road that is the course extends and how the road itself moves relative to the course. Even in mountain climbing and trail runs, the trails and trails that are courses can be easily distinguished from other areas by visually confirming the growth status of the trees.

  On the other hand, in water sports, the course can be set by setting buoys floating on the water or ground structures such as islands and wharves (including natural structures and artificial structures) as targets. There are very few objects other than objects. Therefore, it is very difficult to distinguish between a position along the course and a position off the course. In general water sports, the distance between targets is often as long as several hundred meters, so the difference between the scenery seen from the course and the scenery seen from outside the course is small. It makes it difficult to objectively recognize the deviation.

  Also, in water sports, the user himself / herself cannot afford to recognize the course accurately because he / she spends his / her work on controlling the boat and the board so as not to sink or capsize. In particular, in a swimming competition such as OWS, it is necessary to perform a head-up operation in order to confirm the direction of travel, and user skills are required as compared to a general swimming method, and physical strength is consumed greatly. This is also a factor that hinders recognition of the course. In some races, a rope may be provided between the target buoys, but the rope may be slightly separated to avoid contact with other competitors. Considering the point that it is difficult to enter the field of view, the wave may be blocked even when the head is raised, and the visibility is not sufficient, the provision of the rope is not a fundamental solution.

  Originally, in water sports, it is difficult to go straight due to the influence of tides and waves. Therefore, it is difficult to move accurately on the set course in water sports. As in Patent Document 1, it is also conceivable to assist movement to a target such as a buoy by applying a method for guiding to a waypoint to water sports. Patent Document 1 also touches on a method for determining a new route for returning to a desired route when the user deviates from the desired route. However, in the method of Patent Document 1, although it may be possible to reset the route (course) as appropriate according to the current position of the user, there is a problem in water sports where it is difficult for the user to move accurately according to the course. Remains.

  As described above, in water sports, it is inevitable that the user's position and moving route deviate (separate) from the prescribed course, and the guidance method described in Patent Document 1 or the like is to suppress itself. Even if is used, it is very difficult. Deviations from the course can be a major problem in user safety management and performance analysis.

  For example, there is a possibility of misidentifying the distance that the user has actually moved. In the case of OWS, by referring to the course information in advance, the user acquires information such as “the distance from the start point to the first buoy is 500 m”. Therefore, when the user reaches the first buoy during the competition, the user makes a determination such as “I am now swimming 500 m”.

  However, in order to swim meandering, the distance that the user actually swims is often several tens of percent longer than 500 meters (for example, about 600 meters, an increase of 20%). As a result, the user underestimates the distance he / she swam, so it is consumed more than expected before the goal, leading to retirement and water accidents.

  In other words, the degree of deviation between the originally set course and the actual position of the user is very useful information. For example, if the degree of divergence can be grasped during sports execution, the user can cope with course correction, pace adjustment, and the like. Further, even in return after the end of the sport, by using the information on the degree of divergence, it is possible to perform a detailed performance analysis that is unknown from the moving speed and time.

  The performance monitoring apparatus 10 of the present embodiment is a performance monitoring apparatus for water sports, and as shown in FIG. 1, information related to the positions of the first to Mth (M is an integer of 2 or more) targets. And the information related to the position of the user performing water sports is acquired, and the i th target (i is an integer of 1 ≦ i ≦ M−1) and the i + 1 th target are connected. A processing unit 12 that obtains information on the degree of deviation of the user with respect to the waterway and an output unit 13 that outputs the degree of deviation information are included.

  Here, the target is an object that is a moving target of a user who performs water sports, and is arranged at a given position on the course in a narrow sense. For example, as shown in FIG. 2, it may be arranged at a curve point of the course (a point where the traveling direction changes). The target may be an object placed on the water like a buoy, an artificial structure provided on land, or an island itself (natural structure).

  The information related to the position may be the position information itself, or may include information indicating the position, information obtained from the position, and the like. For example, the information related to the position of the target may include the position coordinates of the target (buoy) and the measurement time of the position coordinates, as will be described later with reference to FIG. Or the memory | storage part 11 may memorize | store the distance information between targets, and memorize | store the information regarding the water channel (route | route, course) between targets. The information on the course is information representing a straight line connecting a given target and the next target in a narrow sense. Similarly, the information related to the user's position is the user's position itself (position coordinates) in a narrow sense, but it is not prevented from including other information.

  Here, the order of the first to Mth targets is defined, and the (i + 1) th target represents the target next to the i th target. In the water sports according to the present embodiment, the athlete (user) departs from the first target (starting point in a narrow sense), the second target, the third target,. The course that reaches the Mth target (a goal point in a narrow sense) is moved through the M-1 target sequentially. That is, in the present embodiment, the divergence degree information is output for at least a course (water channel) between two adjacent targets. However, as will be described later, a course defined by three or more targets may be targeted.

  The divergence degree information is information indicating the degree of divergence between the specified water channel and information related to the actual position of the user. Specifically, as will be described later with reference to FIGS. 8 to 16, the distance between the course (ideal line L) and the user position P, the difference or ratio between the course distance and the distance the user has swam, the course direction and the user Various information such as an angle with a direction corresponding to the position can be used as the divergence degree information.

  According to the method of the present embodiment, it is possible to output divergence degree information (present to the user). As a result, it is possible to encourage the user during sports to understand the current state and take an appropriate response, and to allow the user during the break to perform an accurate analysis of the previous sports. As a result, water sports can be performed safely and efficiently, and performance can be monitored appropriately.

  In addition, the water sports targeted in this embodiment are not limited to the above example, and various modifications can be made. As described above, considering the problem that the user cannot objectively grasp the degree of deviation from the course, for example, swimming in a long-distance pool that does not make a turn can be included in the water sports of this embodiment.

2. System Configuration Example FIGS. 2 to 4 are configuration examples of a system including the performance monitoring apparatus 10 of the present embodiment. FIG. 2 is an example of the overall configuration of the system. FIG. 3 is an enlarged view of a user (competitor), and FIG. 4 is an enlarged view of a terminal (user terminal 1C) attached to the user. In the following, an example in which OWS is performed as a water sport will be described. However, other sports can be expanded as described above.

  In the present embodiment, at least one of the first to Mth targets may be a moving target. In that case, the processing unit 12 of the performance monitoring apparatus 10 may perform update processing of information related to the position of the moving target.

  For example, a buoy installed on the surface of the water is restrained by a rope at the bottom of the water, but basically floats on the surface of the water and is affected by tides, waves, winds, etc., so the buoy moves during the swim there is a possibility. If the movement is not taken into account, the performance monitoring apparatus 10 uses a position different from the actual buoy position as a reference, and therefore cannot perform appropriate processing and information output. Therefore, in the present embodiment, information related to the position of the target may be updated as appropriate, and processing that reflects the actual position of the target may be performed. Hereinafter, in FIG. 2 and the like, an example in which a terminal (buoy terminal 1B) that acquires information related to the position of the target is included will be described. However, the update process of information related to the position of the target is not an essential configuration, and the buoy terminal 1B may be omitted.

2.1 Overall Configuration As shown in FIGS. 2 to 4, the system of this embodiment includes a management terminal 1 </ b> A, a buoy terminal 1 </ b> B, and a user terminal 1 </ b> C (an example of the performance monitoring device 10).

  The management terminal 1A is, for example, a terminal device fixed at the start point S of the swim type. Since the start point S has facilities such as a gate SG and a measurement mat SM installed by the operator of the triathlon tournament, the management terminal 1A may be configured as a part of these facilities, May be installed independently. It is desirable that at least the management terminal 1 </ b> A is installed near a point where a swim event participant always passes. By the way, the gate SG or mat SM installed at the start point S has a function of reading an RF tag TG (RF: radio frequency) attached to the body of the participant of the triathlon tournament (RF tag reader function). ing. The RF tag reader is used for measuring lap lime and the like for each participant, and is installed at the starting point for each event of the triathlon competition.

  The buoy terminal 1 </ b> B is a terminal device fixed to a buoy (an example of a target) indicating a corner point of a course 100 </ b> C (here, a course passing through the sea and a sandy beach). Each buoy is loosely fixed to the seabed via a rope (not shown), but the height of the sea level can change due to changes in the tide level, etc., so the position of each buoy in the horizontal plane and the buoy vertical The position of the direction can change over time. Here, the number of corner points in the course 100C, that is, the number of buoys is set to “3” (first buoy BY-1, second buoy BY-2, third buoy BY-3), and the buoy terminal 1B The number is assumed to be “3”.

  The user terminal 1 </ b> C is a portable information terminal that can be carried by those who are registered in advance as users of the system of the present embodiment among the participants of the triathlon competition (hereinafter referred to as “user 2”). Here, the user terminal 1 </ b> C is a wearable terminal attached to the user 2 's body.

  Here, the user terminal 1C may be configured integrally with the RF tag TG attached to the ankle or the like of the user 2, but in the following, as shown in FIG. Suppose it is worn on the wrist. That is, the user terminal 1C is assumed to have a wristwatch or wristband shape as shown in FIG. The number of user terminals 1C is the same as the number of registered users 2.

  In the above system, at least the management terminal 1A and the buoy terminal 1B can wirelessly communicate, and the management terminal 1A and the user terminal 1C can wirelessly communicate. Hereinafter, the communication between the management terminal 1A and the buoy terminal 1B is bidirectional communication, and the communication between the management terminal 1A and the user terminal 1C is unidirectional communication (broadcast) with the management terminal 1A as a transmission source. Communication).

2.2 Configuration Example of Each Terminal FIG. 5 is a functional block diagram for explaining the configuration of the system. Note that since the plurality of buoy terminals 1B have the same configuration and the plurality of user terminals 1C have the same configuration, FIG. 5 shows a single buoy terminal 1B and a single user terminal 1C.

  The buoy terminal 1B includes a GPS sensor 110b, a processing unit 120b, a storage unit 130b, a time measuring unit 160b, a communication unit 190b, a battery 191b, and the like. However, the configuration of the buoy terminal 1B may be a configuration in which some of these components are deleted or changed, or other components are added.

  A GPS (Global Positioning System) sensor 110b of the buoy terminal 1B generates positioning data (data such as latitude, longitude, altitude, and velocity vector) indicating the position of the buoy terminal 1B and the processing unit 120b of the buoy terminal 1B. For example, a GPS receiver. The GPS sensor 110b receives electromagnetic waves in a predetermined frequency band coming from outside with a GPS antenna (not shown), extracts a GPS signal from a GPS satellite, and positioning data indicating the position of the buoy terminal 1B based on the GPS signal. Is generated.

  The processing unit 120b (processor) of the buoy terminal 1B includes, for example, an MPU (Micro Processing Unit), a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), and the like. The processing unit 120b executes various processes according to the program stored in the storage unit 130b and the instruction received from the management terminal 1A.

  The storage unit 130b of the buoy terminal 1B is configured by, for example, one or a plurality of IC memories (IC: Integrated Circuit) and the like, a ROM (Read Only Memory) in which data such as a program is stored, a work area of the processing unit 120b, RAM (Random Access Memory). The RAM includes a nonvolatile RAM.

  The time measuring unit 160b of the buoy terminal 1B is configured by a real time clock (RTC) IC, for example, and generates time data such as year, month, day, hour, minute, second, and sends the time data to the processing unit 120b. .

  The communication unit 190b of the buoy terminal 1B performs various controls for establishing communication between the buoy terminal 1B and the management terminal 1A. The communication unit 190b includes, for example, Bluetooth (registered trademark) (including BLE: Bluetooth Low Energy), Wi-Fi (registered trademark) (Wi-Fi: Wireless Fidelity), Zigbee (registered trademark), NFC (Near field communication). , Including a transceiver compatible with a short-range wireless communication standard such as ANT + (registered trademark).

  The battery 191b of the buoy terminal 1B is, for example, a rechargeable battery that supplies electric power to each element constituting the buoy terminal 1B. As a charging method of the battery 191b, for example, contactless charging, contact charging, or the like can be applied. Further, the battery 191b may be an exchangeable battery or a solar power generation type battery.

  The management terminal 1A includes a processing unit 120a, a storage unit 130a, an operation unit 150a, a timing unit 160a, a display unit 170a, a communication unit 190a, a battery 191a, and the like. However, the configuration of the management terminal 1A may be a configuration in which some of these components are deleted or changed, or other components are added.

  The processing unit 120a (processor) of the management terminal 1A is configured by, for example, an MPU, DSP, ASIC, or the like. The processing unit 120a executes various processes in accordance with the program stored in the storage unit 130a and the instruction input from the operation unit 150a.

  The storage unit 130a of the management terminal 1A includes, for example, one or a plurality of IC memories, and includes a ROM that stores data such as programs and a RAM that serves as a work area for the processing unit 120a.

  The operation unit 150a of the management terminal 1A includes, for example, buttons, keys, a microphone, a touch panel, a voice recognition function (using a microphone (not shown)), an action detection function (using an acceleration sensor (not shown)), and the like. An instruction from the system administrator (which may be the same as the operator of the triathlon tournament, hereinafter referred to as “operator”) is converted into an appropriate signal and sent to the processing unit 120a.

  The timekeeping unit 160a of the management terminal 1A is composed of, for example, a real-time clock IC, and generates time data such as year, month, day, hour, minute, second and sends it to the processing unit 120a.

  The display unit 170a of the management terminal 1A includes, for example, an LCD (Liquid Crystal Display), an organic EL (Electroluminescence) display, an EPD (Electrophoretic Display), a touch panel display, and the like, and displays various images according to instructions from the processing unit 120a. To do. In addition, as the display unit 170a, a head mounted display (HMD) provided separately from the management terminal 1A can be used.

  The communication unit 190a of the management terminal 1A performs various controls for establishing communication between the management terminal 1A and the user terminal 1C and communication between the management terminal 1A and the buoy terminal 1B.

  The battery 191a of the management terminal 1A is a battery that supplies power to each element constituting the management terminal 1A, and is, for example, a rechargeable battery.

  The user terminal 1C includes a GPS sensor 110c (an example of a positioning unit), a geomagnetic sensor 111c, an atmospheric pressure sensor 112c, an acceleration sensor 113c, an angular velocity sensor 114c, a pulse sensor 115c, a temperature sensor 116c, a processing unit 120c (an example of a computer), and a storage unit. 130c (memory), operation unit 150c, timing unit 160c, display unit 170c (an example of display and output unit 13), sound output unit 180c (an example of speaker and output unit), communication unit 190c (an example of reception unit), battery 191c etc. are comprised. However, the configuration of the user terminal 1C may be such that some of these components are deleted or changed, or other components (for example, a humidity sensor, an ultraviolet sensor, etc.) are added.

  The GPS sensor 110c of the user terminal 1C is a sensor that generates positioning data (data such as latitude, longitude, altitude, and velocity vector) indicating the position of the user terminal 1C and outputs it to the processing unit 120c of the user terminal 1C. For example, a GPS receiver is included.

  Note that acquisition of information related to the position is not limited to GPS, and other Global Navigation Satellite System (GNSS) may be used. For example, one or more satellite positioning systems such as EGNOS (European Geostationary-Satellite Navigation Overlay Service), QZSS (Quasi Zenith Satellite System), GLONASS (GLObal NAvigation Satellite System), GALILEO, BeiDou (BeiDou Navigation Satellite System) May be used. Also, a satellite-based augmentation system (SBAS) such as WAAS (Wide Area Augmentation System) or EGNOS (European Geostationary-Satellite Navigation Overlay Service) may be used for at least one of the satellite positioning systems. Good. Various satellite systems can also be used for obtaining information related to the position of the target (buoy).

  The geomagnetic sensor 111c of the user terminal 1C is a sensor that detects a geomagnetic vector indicating the direction of the earth's magnetic field viewed from the user terminal 1C, and generates, for example, geomagnetic data indicating magnetic flux densities in three axial directions orthogonal to each other. To do. For the geomagnetic sensor 111c, for example, an MR (Magnet resistive) element, an MI (Magnet impedance) element, a Hall element, or the like is used.

  The atmospheric pressure sensor 112c of the user terminal 1C is a sensor that detects the ambient atmospheric pressure (atmospheric pressure), and includes, for example, a pressure-sensitive element using a method (vibration method) that uses a change in the resonance frequency of the resonator element. . This pressure-sensitive element is a piezoelectric vibrator formed of a piezoelectric material such as quartz, lithium niobate, or lithium tantalate. For example, a tuning fork vibrator, a double tuning fork vibrator, an AT vibrator (thickness sliding) A resonator), a SAW resonator, or the like is applied. Note that the output (atmospheric pressure data) of the atmospheric pressure sensor 112c may be used to correct the positioning data.

  The acceleration sensor 113c of the user terminal 1C detects accelerations in the three axial directions that intersect (ideally orthogonal) with each other, and digital signals (acceleration data) corresponding to the detected magnitudes and directions of the three axial accelerations. Is an inertia sensor. Note that the output of the acceleration sensor 113c may be used to correct position information included in the positioning data of the GPS sensor 110c in the user terminal 1C.

  The angular velocity sensor 114c of the user terminal 1C detects respective angular velocities in three axial directions that intersect (ideally orthogonal) with each other, and a digital signal (angular velocity data) corresponding to the magnitude and direction of the measured three-axial angular velocity. Is an inertia sensor. The output of the angular velocity sensor 114c may be used to correct position information included in the positioning data of the GPS sensor 110c in the user terminal 1C.

  The pulse sensor 115c of the user terminal 1C is a sensor that generates a signal indicating the pulse of the user and outputs the signal to the processing unit 120c of the user terminal 1C. For example, the measurement light having an appropriate wavelength is directed to the subcutaneous blood vessel. A light source such as an LED light source (LED: Light Emitting Diode), and a light receiving element that detects a change in the intensity of light generated in the blood vessel in accordance with the measurement light. Note that the pulse rate (pulse rate per minute) can be measured by processing the light intensity change waveform (pulse wave) by a known method such as frequency analysis. The pulse sensor 115c may be an ultrasonic sensor that detects the contraction of the blood vessel using ultrasonic waves and measures the pulse rate in place of the photoelectric sensor including the light source and the light receiving element. You may employ | adopt the sensor etc. which flow in the body and measure a pulse rate.

  The temperature sensor 116c of the user terminal 1C is a temperature sensitive element that outputs a signal corresponding to the ambient temperature (for example, a voltage corresponding to the temperature). The temperature sensor 116c may output a digital signal corresponding to the temperature.

  The processing unit 120c (processor) of the user terminal 1C is configured by, for example, an MPU, DSP, ASIC, or the like. The processing unit 120c executes various types of processing (an example of a performance monitoring method) in accordance with a program (an example of a performance monitoring program) stored in the storage unit 130c and an instruction input from the operation unit 150c. The processing by the processing unit 120c includes data processing for data generated by various sensors, display processing for displaying an image on the display unit 170c, sound output processing for outputting sound to the sound output unit 180c, and external processing via the communication unit 190c. Communication processing for communicating with the device, power control processing for supplying power from the battery 191c to each unit, and the like are included.

  The storage unit 130c of the user terminal 1C includes, for example, one or a plurality of IC memories, and stores a ROM that stores data such as a program (an example of a performance monitoring program) and a RAM that serves as a work area of the processing unit 120c. Have.

  The operation unit 150c of the user terminal 1C includes, for example, a button, a key, a microphone, a touch panel, a voice recognition function (using a microphone (not shown)), an action detection function (using an acceleration sensor 113c, etc.), and the like. Is converted into an appropriate signal and sent to the processing unit 120c.

  The time measuring unit 160c of the user terminal 1C includes, for example, a real time clock IC, and generates time data such as year, month, day, hour, minute, second, and sends the time data to the processing unit 120c. Note that the time data may be corrected as appropriate based on the time information included in the positioning data.

  The display unit 170c of the user terminal 1C includes, for example, an LCD, an organic EL display, an EPD, a touch panel type display, and the like, and displays various images according to instructions from the processing unit 120c. As the display unit 170c, a head-mounted display provided separately from the user terminal 1C can be used.

  The sound output unit 180c of the user terminal 1C includes, for example, a speaker, a buzzer, a vibrator, and the like, and generates various sounds (including vibrations) according to instructions from the processing unit 120c. In addition, as the sound output unit 180c, a bone conduction device provided separately from the user terminal 1C can be used.

  The communication unit 190c of the user terminal 1C performs various controls for establishing communication between the user terminal 1C and the management terminal 1A.

  The battery 191c of the user terminal 1C is a battery that supplies power to each element constituting the user terminal 1C, and is a rechargeable battery, for example.

2.3 Performance Monitoring Device, Performance Monitoring System The performance monitoring device 10 according to the present embodiment may be the user terminal 1C. In this case, the storage unit 11 corresponds to the storage unit 130c of the user terminal 1C, and the processing unit 12 corresponds to the processing unit 120c. The output unit 13 corresponds to the display unit 170c or the sound output unit 180c. That is, the output in the present embodiment may be a display of image information, or an output of sound or vibration. Further, the output may be light emission of a light emitting unit (LED or the like), and the output unit 13 may be realized by a light emitting unit (not shown). Further, the output of the present embodiment may include communication of information to other devices, and the output unit 13 may be realized by the communication unit 190c.

  The user terminal 1C is not limited to the wristwatch type device of FIG. The user terminal 1C includes a wrist-type electronic device, an earphone-type electronic device, a ring-type electronic device, a pendant-type electronic device, an electronic device mounted on a sports equipment, a smartphone, a head-mounted display (HMD), a head-up display (HUD). : Head Up Display), etc., can be configured as various types of portable information devices.

  Further, the performance monitoring apparatus 10 of the present embodiment may be the management terminal 1A. In this case, the storage unit 11 corresponds to the storage unit 130a, and the processing unit 12 corresponds to the processing unit 120a. The divergence degree information obtained by the processing unit 12 (120a) is assumed to be presented to the user at the user terminal 1C as will be described later with reference to FIG. Therefore, the output unit 13 of the performance monitoring apparatus 10 that is the management terminal 1A may be the communication unit 190a. The output unit 13 (communication unit 190a) outputs (communications) the divergence degree information to the user terminal 1C. However, the output of the divergence degree information by the display unit 170a or the like of the management terminal 1A is not hindered.

  2 and 5 show examples using the management terminal 1A, the performance monitoring apparatus 10 of this embodiment may be realized by a general-purpose server system or the like. However, since information related to the position of the user 2 is used in the process for obtaining the divergence degree information, the server system may use a device that can communicate with the user terminal 1C.

  The method of the present embodiment is a performance monitoring system for water sports, and includes a storage unit 11 that stores information related to the positions of first to Mth (M is an integer of 2 or more) targets, The information related to the position of the user 2 who performs sports is acquired, and the user's divergence degree information with respect to the channel connecting the i-th target object (i is an integer of 1 ≦ i ≦ M−1) and the i + 1th target object is obtained. The present invention can be applied to a performance monitoring system including a processing unit 12 to be obtained and an output unit 13 that outputs divergence information.

  Here, the performance monitoring system includes, for example, at least one of the user terminal 1C and the management terminal 1A. That is, the acquisition and storage of information related to the target and the position of the user 2 and the calculation and output of the divergence degree information may be performed by the user terminal 1C, the management terminal 1A, or distributed. It may be realized by processing.

It is also unimpeded that the performance monitoring system includes other devices. For example, the performance monitoring system of the embodiment can be modified into the following various types.
(1) User terminal + buoy terminal + management terminal + network (configuration in FIG. 5)
(2) User terminal + information terminal (smartphone, PC) + buoy terminal + management terminal + network (3) User terminal + information terminal (smartphone, PC) + buoy terminal + management terminal + network + server (server looks back, advance Used for preparation, data creation for transmission, or distribution)
(4) User terminal + buoy terminal + management terminal + network + server (distributed by management terminal)
(5) User terminal + buoy terminal + management terminal + network + server (management terminal has the same function as buoy terminal, server delivers)
(6) User terminals cooperate in any of (2) to (5) (7) Items in which buoy terminal is omitted in any of (2) to (6)

  In addition, the performance monitoring apparatus and the like of the present embodiment may include a processor and a memory. In the processor here, for example, the function of each unit may be realized by individual hardware, or the function of each unit may be realized by integrated hardware. For example, the processor may include hardware, and the hardware may include at least one of a circuit that processes a digital signal and a circuit that processes an analog signal. For example, the processor can be composed of one or a plurality of circuit devices (for example, ICs) mounted on a circuit board or one or a plurality of circuit elements (for example, resistors, capacitors, etc.). The processor may be, for example, a CPU (Central Processing Unit). However, the processor is not limited to the CPU, and various processors such as a GPU (Graphics Processing Unit) or a DSP (Digital Signal Processor) can be used. The processor may be an ASIC hardware circuit. The processor may include an amplifier circuit, a filter circuit, and the like that process an analog signal. The memory may be a semiconductor memory such as SRAM or DRAM, a register, a magnetic storage device such as a hard disk device, or an optical storage device such as an optical disk device. May be. For example, the memory stores an instruction that can be read by a computer, and the function of each unit such as a performance monitoring apparatus is realized by the instruction being executed by the processor. The instruction here may be an instruction of an instruction set constituting the program, or an instruction for instructing an operation to the hardware circuit of the processor.

3. Specific Example of Course Next, a specific example of the course (course 100C) will be described using the example of FIG. First, an outline of typical user operations along the course will be described, and then an example of the data format of the course information will be described.

3.1 User Operation An overview of user 2 operation will be described. The user 2 inputs a start instruction to the user terminal 1C via the operation unit 150c of the user terminal 1C before reaching the start point S of the swim event. Thereby, course information (described later) can be received from the management terminal 1A to the user terminal 1C. The timing at which the user 2 inputs a start instruction to the user terminal 1C may be at the start of the triathlon competition or before the start.

  Next, when the user 2 passes the start point S of the swim event, he runs toward the first corner (first buoy BY-1), enters the sea on the way, and the water depth is sufficient. At that point, start swimming with a relatively fast swimming method such as crawl.

  FIG. 6 is a diagram illustrating a state where the user 2 swims in the crawl. Although FIG. 6 shows a state where the arm not wearing the user terminal 1C extends forward, the arm wearing the user terminal 1C extends forward of the user 2 at the next timing. The user 2 who is swimming confirms the display unit 170c when the arm is extended forward by crawling. Moreover, since the user 2 who is taking a break can change the posture flexibly to some extent, the user can check the display unit 170c in an arbitrary posture. The state of resting may be a state where a person swims while swimming, a state where he / she is caught by a buoy or a rope, or a state where he / she is standing on the land.

  When the user 2 passes through the start point S (or enters the water), the user terminal 1C starts processing to be described later with reference to FIG. 19 and targets the water channel to the first corner (first buoy BY-1). Display of divergence degree information etc. is started. Moreover, you may perform the display which guides the user 2 to the direction of 1st buoy BY-1. However, direction guidance by the user terminal 1C is not essential, and the user may move while visually confirming the target.

  Thereafter, when the user 2 goes outside the first corner (the first buoy BY-1), the user terminal 1C displays the degree of divergence information and the like for the water channel to the second corner (the second buoy BY-2). Start displaying. Next, the user 2 swims from the vicinity of the first corner toward the second corner. Thereafter, when the user 2 goes outside the second corner, the user terminal 1C starts to display the deviation degree information and the like for the water channel up to the third corner (third buoy BY-3). Next, the user 2 swims from the vicinity of the second corner toward the third corner. Thereafter, when the user 2 goes outside the third corner, the user terminal 1C starts to display the deviation degree information and the like for the water channel to the goal point (start point S) of the swim event.

  Next, the user 2 swims from the vicinity of the third corner toward the goal point, starts running when the water depth becomes shallow, and passes the goal point (start point S). When the user 2 passes the start point S, the user terminal 1C automatically ends the output of information.

  Then, after passing the goal point of the swim event, the user 2 inputs an end instruction to the user terminal 1C via the operation unit 150c of the user terminal 1C. The timing at which the user 2 inputs an end instruction to the user terminal 1C may be at the end of the triathlon competition or after the end.

3.2 Course information In order to obtain divergence information, it is necessary to set a reference course (water channel connecting the targets), and the course can be represented by information related to the position of the target. It is. Hereinafter, a data format of course information which is an example of information related to the position of the target will be described.

  The storage unit 130a of the management terminal 1A stores information (course information) related to the swim type course. The course information is registered in advance by the operator via the operation unit 150a of the management terminal 1A before the triathlon competition is held.

  However, at least a part of the course information (at least the position coordinates of the plurality of buoy terminals 1B) can be appropriately updated (rewritten) by the processing unit 120a of the management terminal 1A during the triathlon competition. Therefore, the course information is stored in a rewritable memory (for example, a nonvolatile RAM) in the storage unit 130a. In the following, it is assumed that the terminal ID of each buoy terminal 1B is transmitted to the management terminal 1A side by pairing between the buoy terminal 1B and the management terminal 1A before the triathlon competition, for example.

  FIG. 7 shows an example in which the course information is a data table. As shown in FIG. 7, the course information includes the numbers (waypoint numbers) of the points (waypoints) constituting the course, the IDs (terminal IDs) of the terminals installed at the individual waypoints, and the positions of the terminals. The coordinates and the positioning time of the position coordinates are included.

  The waypoint represents each point constituting the swim course 100C, and includes points corresponding to the first to Mth targets. In the example of FIG. 7 (FIG. 2), there are five points: a start point, a first corner, a second corner, a third corner, and a goal point. The terminal ID is an ID of a terminal installed at each of the five waypoints. The position coordinates are the position coordinates of each terminal (management terminal 1A or buoy terminal 1B) included in the course information. In the example of FIG. 7, latitude (x), longitude (y), and altitude (z) are shown. The elevation may be omitted. The positioning time is the time when the position coordinates are generated.

4). Information output method including divergence degree information An information output method including divergence degree information will be described. After describing various specific examples of the divergence degree information, modifications of the output mode of the divergence degree information will be described. Furthermore, information to be output other than the deviation degree information will be described, and finally a specific example of the output condition will be described.

4.1 Specific example and display example of divergence degree information A specific example of divergence degree information and an example of a display screen will be described with reference to FIGS.

4.1.1 Distance from Ideal Line (Water Channel) FIG. 8 is a diagram illustrating an example of the deviation information of the present embodiment. The divergence degree information may be information indicating the distance between the water channel connecting the i-th target BYi and the (i + 1) -th target BYi + 1 and the position of the user 2. For example, as shown in FIG. 8, it is assumed that an i-th target BYi and an (i + 1) -th target BYi + 1 are arranged, and L that is a line segment connecting them is a water channel (course, ideal line). In this case, the divergence degree information is a distance between the ideal line L and the point P represented by information (position coordinates) related to the position of the user 2. For example, the length of the perpendicular drawn from P to L is used as the divergence degree information.

  The processing unit 12 of the performance monitoring apparatus 10 (the processing unit 120c of the user terminal 1C in a narrow sense) acquires course information in the format shown in FIG. Since the course information includes the position coordinates of the target, the processing unit 12 can obtain the ideal line L. Further, the processing unit 12 can specify P from information (positioning data, position coordinates) related to the position of the user 2 based on the GPS sensor 110c. Using these pieces of information, the processing unit 12 calculates divergence degree information that is the length of the perpendicular drawn from P to L.

  If it does in this way, how much distance the position of the user 2 is away from the waterway can be output as the deviation information. By outputting the divergence degree information, the user 2 can intuitively understand the degree of divergence from the course when attention is given to a given timing. Note that the water channel connecting the two targets is not limited to a straight line, and the calculation method of the information relating to the position of the user 2 and the distance between the water channels is not limited to the above, and various modifications can be made.

  The output unit 13 of the present embodiment is a display unit (display unit 170c in FIG. 5 in a narrow sense), and the display unit may display divergence degree information.

  FIG. 9 is an example of a display screen in a case where divergence degree information, which is a distance from the ideal line L, is displayed on the display unit 170c of the user terminal 1C. In the example of FIG. 9, the display unit 170c displays moving distance information (A1) that represents the distance that the user 2 has swam, time information (A2) that represents the time that the user 2 has swam, and divergence information (A3). To do.

  The travel distance information is, for example, distance information from the last passed target to the current position. In the example of FIG. 8, the moving distance information represents the distance from the i-th target BYi to the current position P of the user 2, and in FIG. 9, the display unit 170c displays “355 m”. The distance information here is the distance (the road) where the user 2 actually swims, and is different from the linear distance between BYi and P and the course distance (the linear distance between the targets).

  Since the processing unit 12 can acquire the position coordinates of the user 2 at a predetermined rate, the movement distance information that is the movement distance of the user 2 is calculated by integrating the displacement of the position coordinates from the last passed target. it can. Further, the travel distance information may be cumulative distance information from the start point to the current position.

  The time information is, for example, the elapsed time from the timing at which the target is last passed to a given timing (current time in a narrow sense). In the example of FIG. 8, the time information represents the time from passing through the i-th target BYi until the current time (timing when the user 2 has reached the current position P). In FIG. “0:07:12” (7 minutes 12 seconds) is displayed. The processing unit 12 obtains time information based on information from the time measuring unit (the time measuring unit 160c in a narrow sense).

  Note that the timing at which the user 2 has passed the target (has reached the target) can be determined by various methods. For example, the processing unit 12 may determine that the user 2 has reached the target when the difference between the position of the user 2 and the position of the given target is equal to or less than a predetermined threshold. However, a change in the moving direction of the user 2 or the like may be used together, and the arrival determination to the target can be variously modified. Alternatively, it may be set such that the user 2 operates the operation unit 150c of the user terminal 1C at a timing when the user 2 himself / herself determines that the target such as a buoy has been reached. In this case, the processing unit 12 determines that the user 2 has reached the target object when operation information representing the operation is input.

  As illustrated in FIG. 9, the display unit 170 c may express the divergence degree information in FIG. 8 with two arrows (A 31 and A 32) and a numerical value (A 33). As can be seen from FIG. 8, when the water channel between the targets is considered as a line segment (ideal line L), the divergence degree information here is the distance between the line segment intersecting the line segment (or orthogonally in the narrow sense) and Can think. Therefore, in the example of FIG. 9, it is clearly indicated that the divergence degree information shown in FIG. 8 is to be displayed by combining the second arrow (A32) that represents the water channel by the first arrow (A31) and intersects with it. To do. In addition, the display unit 170c displays the actual distance magnitude as a numerical value (A33, “16 m” in the example of FIG. 9).

  In addition, the display of A31 and A32 may be fixed, and may change according to the deviation information. For example, the positional relationship between A31 and A32 may be changed according to which side of the ideal line L the user 2 is displaced, or the length of A32 may be changed according to the degree of deviation information. I can't interfere.

4.1.2 Difference or Ratio with Setting Distance (Waterway Distance) FIG. 10 is a diagram for explaining another example of the divergence degree information of the present embodiment. The divergence degree information may be information representing the degree of divergence of the movement distance information of the user 2 with respect to the distance information of the water channel connecting the i-th target BYi and the (i + 1) -th target BYi + 1. For example, the ideal line L shown in FIG. 10 is a water channel, and the length of the water channel is 300 m. In addition, the distance information of a waterway may be calculated by the processing unit 12 based on course information (positional coordinates), or distance information between targets may be included in the course information itself. Or it is not prevented that the user 2 inputs the distance information of a waterway.

  The movement distance information of the user 2 is obtained by the processing unit 12 based on information related to the position of the user 2 as described above. The processing unit 12 obtains the moving distance up to a predetermined timing after the user 2 reaches the position corresponding to the i-th target BYi as the moving distance information here. Here, as shown in FIG. 10, it is assumed that the moving distance information is 355 m and the difference from the waterway distance information is +55 m.

  If it is important to indicate which of the actual courses the user 2 has swam extra, the travel distance information means that the user 2 starts from the position corresponding to the i-th target BYi. It is preferable to use the movement distance until the position corresponding to the (i + 1) th target object BYi + 1 is reached. That is, the divergence degree information here may be calculated at the timing when the user 2 reaches the target. However, the present invention is not limited to this, and at the timing when the user 2 leaves the position corresponding to the i-th target BYi, the moving distance is 0 m (the difference is −300 m), and the moving distance information increases as the user 2 moves. However, the divergence degree information (difference) may change.

  The deviation degree information may be difference information between the waterway distance represented by the waterway distance information and the movement distance represented by the movement distance information of the user 2. The difference information here may be the difference itself such as “+55 m” described above, but other information corresponding to the difference may be used.

  FIG. 11 is a display example when the divergence degree information shown in FIG. 10 is displayed on the display unit 170c of the user terminal 1C. In the example of FIG. 11, the display unit 170 c displays moving distance information (B 1) that represents the distance that the user 2 has swam, time information (B 2) that represents the time that the user 2 has swam, and divergence information (B 3). To do. The movement distance information and time information are the same as those in FIG.

  As shown in FIG. 11, the display unit 170c may express the divergence degree information, which is difference information, by two arrows (B31, B32) and a numerical value (B33). In FIG. 11, a water channel is represented by the first arrow (B31). Further, the actual movement path of the user 2 whose distance has been extended by meandering while aiming in the same direction as the water channel is represented by a second arrow (B32) having the same direction as the first arrow and a long length. By combining these two arrows, it is clearly indicated that the divergence degree information shown in FIG. 10 is to be displayed. In addition, the display unit 170c displays the magnitude of the distance corresponding to the difference as a numerical value (B33, “+55 m” in the example of FIG. 9). For B32 as well, a fixed arrow may be displayed, or the length or the like may be changed according to the magnitude of the deviation information.

  Further, the divergence degree information may be ratio information between the waterway distance represented by the waterway distance information and the movement distance represented by the movement distance information of the user 2. For example, in the example of FIG. 10, the processing unit 12 obtains information of 118%, which is a ratio of the movement distance 355 m to the waterway distance 300, as ratio information that is deviation information. However, the ratio information may be the ratio itself such as “118%” or “+ 18%”, but other information corresponding to the ratio may be used.

  FIG. 12 is a display example in the case where divergence degree information, which is ratio information, is displayed on the display unit 170c of the user terminal 1C. In the example of FIG. 12, the display unit 170c displays moving distance information (C1) that represents the distance that the user 2 has swam, time information (C2) that represents the time that the user 2 has swam, and divergence information (C3). To do. Here, the divergence degree information is displayed as a numerical value of “118%”, but display in other modes is not hindered. For example, the arrows (B31, B32) shown in FIG. 11 may be added.

  Moreover, although the example which calculates and outputs divergence degree information targeting the section between adjacent targets was demonstrated in FIGS. 10-12, divergence degree information is not limited to this. For example, the divergence degree information may include information indicating the degree of divergence of the total travel distance information of the user 2 with respect to the total distance information of waterways connecting three or more targets among the first to Mth targets. When the distance between adjacent targets is one section, the total distance information of the waterway is the sum (or similar information) of the distance information of the waterway in a plurality of sections, and the total movement distance of the user 2 The information is the sum (or similar information) of the user's moving distance when moving in a plurality of sections.

  If it does in this way, it will become possible to output the deviation degree of movement distance of user 2 to the distance of a water course (course) for a plurality of sections. For example, the total distance information of the waterway may be a distance from the start point to the goal point, and the total movement distance information may be a distance that the user 2 has swam from the start to the goal. In this way, information indicating how much extra swimming has occurred in the entire race can be used as divergence information, which is useful for race analysis and performance improvement.

  Further, the divergence degree information may be obtained from a start point to a predetermined target (in a narrow sense, the latest target reached by the user 2 or the next target aimed next). In addition, various modifications can be made such as using information indicating the degree of deviation between the total distance information of the waterway and the total movement distance information in a part of the course (and two or more sections) as the deviation information.

4.1.3 Angle Difference FIG. 13 is a diagram for explaining another example of the divergence degree information of the present embodiment. The divergence degree information may be angle information representing the degree of divergence in the direction corresponding to the position of the user 2 with respect to the direction of the water channel (ideal line L) connecting the i-th target BYi and the (i + 1) -th target BYi + 1. . For example, as illustrated in FIG. 13, the processing unit 12 may define a line L2 that connects the i-th target BYi and the current position P of the user 2, and may use the angle θ between the ideal line L and L2 as the divergence degree information. .

  FIG. 14 is a display example when the divergence degree information shown in FIG. 13 is displayed on the display unit 170c of the user terminal 1C. In the example of FIG. 13, the display unit 170c displays moving distance information (D1) indicating the distance that the user 2 has swam, time information (D2) that indicates the time that the user 2 has swam, and divergence information (D3). To do. The movement distance information and time information are the same as those in FIG.

  As illustrated in FIG. 14, the display unit 170 c may express the divergence degree information with a figure (D31) represented by two line segments having one end point in common and a numerical value (D32). By displaying D31, it is clearly indicated that the divergence degree information is information representing an angle. In addition, the display unit 170c displays the magnitude of the angle θ as a numerical value. The angle may be shifted to one side (for example, clockwise direction) with respect to the water channel, and the angle may be shifted to the other side (counterclockwise direction). Therefore, here, the clockwise direction is the positive direction and the counterclockwise direction is the negative direction, and a negative value (“−15 degrees”) is displayed as the deviation information. However, various modifications can be made as to how the angle θ is displayed.

4.1.4 Time Difference FIG. 15 is a diagram illustrating another example of the divergence degree information according to the present embodiment. The divergence degree information may be difference information (or ratio information) of the actual travel time of the user 2 with respect to the estimated travel time of the waterway connecting the i-th target BYi and the (i + 1) -th target BYi + 1. User 2 who is doing the same kind of workout (swimming here) or a user who has participated in a race may assume in advance how long to swim in a section of a predetermined distance. Is possible. By outputting how much the actual travel time differs from the estimated travel time, the user 2 can determine his / her own performance.

  The processing unit 12 obtains in advance the estimated travel time of the water channel connecting the i-th target BYi and the (i + 1) -th target BYi + 1. This may be set based on an input by the user 2. For example, the time itself may be input, or the pace (movement distance per unit time) may be input, and the processing unit 12 may calculate the estimated movement time from the distance information between the pace and the water channel. Alternatively, the processing unit 12 may automatically calculate the estimated travel time from the past workout history information of the target user 2. Further, the processing unit 12 may calculate a general assumed travel time from index values such as the age and weight of the user 2.

  The actual travel time of the user 2 is obtained based on the output of the timer unit as described above. The processing unit 12 may use the difference between the estimated travel time and the actual travel time as the divergence degree information. In the example of FIG. 15, the estimated travel time is 6 minutes, and the actual travel time is 7 minutes and 12 seconds. Therefore, the processing unit 12 obtains information “+1 minute 12 seconds” as the divergence degree information.

  FIG. 16 is a display example when the divergence degree information shown in FIG. 15 is displayed on the display unit 170c of the user terminal 1C. In the example of FIG. 13, the display unit 170c displays moving distance information (E1) that indicates the distance that the user 2 has swam, time information (E2) that indicates the time that the user 2 has swam, and divergence information (E3). To do. The movement distance information and time information are the same as those in FIG. For example, as illustrated in FIG. 16, the display unit 170 c displays the divergence degree information as a numerical value. In addition, what is necessary is just to use a negative value, when actual moving time is shorter than assumption moving time. Moreover, although the example which uses difference information was shown in FIG. 16, other information showing a difference may be used and ratio information may be used. Moreover, the aspect which improves visibility is not limited to size and shading, and modifications, such as using a color, are possible.

4.2 Modification of Output Mode An example of the display screen of the divergence degree information is shown with reference to FIGS. 9, 11, 12, 14, and 16. However, the output mode of the deviation degree information is not limited to this.

  FIG. 17 is another example of a display screen of divergence degree information. As shown in FIG. 17, the display unit (display unit 170c) may display the divergence degree information with higher visibility than other information. In FIG. 17, the display unit displays movement distance information (F1), time information (F2), and divergence degree information (F3), as in FIG. Here, the divergence degree information assumes the distance from the ideal line shown in FIG. 8, but can be extended to other divergence degree information.

  In FIG. 17, the size of the divergence degree information (font size, display area size) is made larger than other information, and the divergence degree information is displayed darker than other information. That is, the visibility of the divergence degree information may be relatively increased by using the size and the shading. In this way, it is possible to display the divergence degree information in a manner that is easy for the user 2 to recognize. For example, the display of FIG. 17 is effective when the degree of divergence becomes greater than a predetermined level and it is necessary to prompt the user 2 to correct the moving direction or adjust the pace immediately.

  Further, the output of the divergence degree information is not limited to the display on the display unit. For example, the output unit 13 notifies the divergence degree information by at least one of vibration, light, and sound. In this case, the output unit 13 is realized by at least one of the sound output unit 180c (speaker, vibrator) and the light emitting unit (LED, etc.).

  When using vibration, light emission, and sound, it is difficult to output specific numerical values. Therefore, for example, the numerical value of the divergence degree information may be divided into several zones, and the vibration mode, the light emission mode, and the output sound mode may be changed for each zone. The vibration mode is determined by a vibration intensity, a vibration pattern (a combination pattern of vibration and non-vibration), or the like. The light emission mode is determined by a light emission color, a light emission pattern (a combination pattern of turning on and off), and the like. The form of the output sound is determined by the pitch (frequency), length, etc. of the sound.

  For example, a first zone in which the divergence degree information is less than a predetermined threshold and a second zone in which the divergence degree information is greater than or equal to the predetermined threshold are set, and the processing unit 12 corresponds to which zone the value of the obtained divergence degree information corresponds to. Determine. And when it determines with a 1st zone, the output part 13 (sound output part 180c, light emission part) stops an output, and when it determines with a 2nd zone, the output part 13 outputs. (Vibration, light emission, sound output). In this way, it is possible to notify the user 2 that the value of the divergence degree information has increased, that is, the divergence degree is large and the adjustment of the moving direction and the pace is necessary. Of course, it is possible to set three or more zones by using three or more output modes.

  Moreover, sound may be output by sound. In this case, it is also possible to notify the numerical value directly. Further, notification may be performed by light emission of the display unit (display unit 170c). In this case, notification may be performed by turning on and blinking the light emitting unit, or notification may be performed by changing the background color of the display unit.

4.3 Example of output information other than divergence degree information The output unit 13 (display unit 170c) may output (display) information other than the divergence degree information.

(1) Narrow Navigation Information As described above, the processing unit 12 can acquire information related to each target and the position of the user 2. Therefore, the processing unit 12 calculates the direction information of the next target and the distance information to the next target on the basis of the information related to the position of the user 2 (current position), and the output unit 13 calculates the information. It may be output. By using the direction information and distance information to the next target, it becomes possible for the user 2 to reduce the loss of distance and set an appropriate pace when moving to the next target. That is, these pieces of information can be said to be navigation information that assists movement to the next target.

(2) Navigation information in a broad sense In addition to information that directly indicates the next target, information that assists the exercise of the user 2 can be output. For example, the output unit 13 displays goal point direction information, start point direction information, distance the user 2 has swam (movement distance information, total movement distance information), distance information from the current position to the goal point, goal prediction time, and the like. It may be output.

  Note that the movement distance information and the total movement distance information are obtained by the processing unit 12 as described above. In addition, the distance information to the goal point is not a straight-line distance, but information representing the distance to the goal point via each target, and the distance information to the next target and the distance between the targets It is calculated | required by the integration process of distance information. Also, the predicted goal time is obtained from the distance information to the goal point and the moving speed of the user 2, for example.

(3) Biological information (pulse information)
Further, the performance monitoring device 10 can obtain pulse information such as the pulse rate based on sensor information from the pulse sensor (pulse sensor 115c of the user terminal 1C). Therefore, the output unit 13 may output various pulse information.

  For example, the output unit 13 displays the current pulse rate, the maximum pulse rate from the start to the present, the maximum pulse rate in the section between adjacent targets (in the narrow sense, the maximum pulse rate in the current section), the start to the present And the average pulse rate in the section between the adjacent targets (in the narrow sense, the average pulse rate in the current section) and the like are output.

  Various methods such as peak detection of pulse waveform signals and FFT (Fast Fourier Transform) are widely known as methods for obtaining the pulse rate based on the pulse sensor in the processing unit 12, and these methods are widely applied in the present embodiment. Is possible. When the pulse rate at each timing is obtained, the processing unit 12 may perform a process for obtaining a maximum value and an average value in a predetermined period.

  In addition, it is assumed that the part (the wrist in a narrow sense) where the user terminal 1C is worn moves violently during sports. Therefore, when information such as divergence degree information and pulse information is calculated based on sensor information in a short time, there is a possibility that a stable value cannot be obtained due to the influence of the movement of the body (arm). Therefore, each information may be averaged over a certain period of time. For example, divergence information and pulse information may be calculated for a period of a predetermined number of scrolls or a period of 1 minute.

4.4 Output conditions In the above, various output modes of information including deviation degree information have been described. Note that these pieces of information may be always output in a constant form, but the output form may be changed according to the situation. Hereinafter, some specific examples will be described.

4.4.1 Output according to degree of deviation The output unit 13 may vary the output mode of the degree of deviation information according to the degree of deviation. When the degree of divergence is large, the user 2 is greatly out of the course, and it is considered that the user is not performing the exercise as expected. In that case, it is desirable to prompt the user 2 to correct the direction of travel or to take a break and adjust the pace.

Here, the large degree of deviation means the following (1) to (3). Further, as shown in FIG. 15, a modification using a time difference with respect to the set time is also possible.
(1) When a certain distance away from the ideal line (2) When the moving distance in a predetermined section exceeds a certain distance, a certain distance, (3) When the angle deviates from the ideal line (θ is predetermined) Greater than or equal to)

  When the degree of divergence is large, the degree of divergence information may be output in a manner that is easier for the user 2 to recognize than when the degree of divergence is small. For example, when the value of the divergence degree information is less than a given threshold value, the display unit displays the divergence degree information as much as other information as shown in FIGS. 9, 11, 12, 14, and 16. Display with the visibility of. When the divergence degree information is equal to or greater than a given threshold, the display unit relatively increases the visibility of the divergence degree information as illustrated in FIG.

  In this way, the magnitude of the divergence degree information can be notified to the user 2 due to the change in the display mode, so that it is possible to prompt an appropriate response. The setting of the output mode according to the degree of deviation is not limited to the above example. For example, when the divergence degree information is small, the display of FIG. 9 or the like may be performed, and when the divergence degree information is large, notification by vibration, light, sound, or the like may be performed. Alternatively, when the divergence degree information is small, the display of FIG. 9 or the like may be performed, and when the divergence degree information is large, notification with vibration, light, sound, or the like may be performed together with the display of FIG. Alternatively, when the divergence degree information is small, navigation information (for example, the direction of the next target) may be displayed, and when the divergence degree information is large, the display of FIGS. 9 and 17 may be performed. In addition, various modifications are possible for specific settings.

4.4.2 Output according to user's exercise state The output unit 13 outputs divergence degree information when the user 2 is determined to be in a resting state and when the user 2 is determined to be in an exercise state. The aspect may be different.

  The processing unit 12 may determine whether it is a resting state or an exercise state based on sensor information of body motion sensors such as the acceleration sensor 113c and the angular velocity sensor 114c. For example, when the value of acceleration or angular velocity is less than a given threshold value, it may be determined as a resting state, and when it is equal to or greater than the threshold value, it is determined as an exercise state. Alternatively, the processing unit 12 may perform state determination using an acceleration frequency or the like, or may perform pattern matching between an acceleration feature quantity and a reference feature quantity.

  When swimming, the part to which the user terminal 1C is attached also moves violently by exercise. For example, in the crawl, the movement is as shown in FIG. Therefore, it is not easy for the user 2 to browse the display unit (the display unit 170c of the user terminal 1C) for a long time in the exercise state. Even in the case of water sports using boats and the like, it is necessary to maintain balance in order to prevent capsizing, and the change in posture is limited. Therefore, browsing of the display unit by the user 2 is similarly limited.

  Considering this point, the information that is output when the user 2 is determined to be in an exercise state should be information that is highly important for browsing during exercise, or information that can be easily understood even after a short browsing. . Information that helps comprehensive understanding of the exercise so far, or information that has a large amount of information and is difficult to understand intuitively, may be output when the user 2 is determined to be in a resting state. Moreover, the resting state here may include a state after the sport is finished. For this reason, information useful for performance analysis, practice planning, etc. should also be output in a dormant state.

  FIG. 18 is an example of a correspondence relationship between each piece of information and the exercise state and rest state of the user 2. In FIG. 18, “◎” represents information with high output (display) priority. “◯” indicates information that is lower in priority than “◎” but is preferably output (displayed). Note that FIG. 18 is an example of an output method, and various modifications can be made to information output in each state.

  In the exercise state, information indicating the distance from the ideal line shown in FIG. 8 (deviation information) and information indicating the direction of the next target (navigation information) may be displayed. Since the distance from the ideal line is information that directly represents the degree of divergence at the current time point, it is useful to present it during exercise. Further, since the user 2 can be guided in an appropriate direction by displaying the direction of the next target, this information is also suitable for display during exercise.

  In the exercise state, as the divergence degree information, the angle information in FIG. 13 or the time difference information in FIG. 15 may be displayed. In addition, as other information, it is preferable to display the direction of the start point and the goal point, the moving distance information, the distance information to the goal, the current pulse rate, and the like.

  On the other hand, in the resting state, the user 2 can calmly browse the information to some extent. For this reason, in FIG. 18, all information is candidates for display. In FIG. 18, the priority of the travel distance information, the current pulse rate, the expected time of the goal, and the expected time is increased.

  In the resting state, the user 2 can calmly know where the current position is in the course. Therefore, by displaying the movement distance, it is possible to make the user 2 determine whether or not his / her own exercise is as expected, or to set the pace from the current position to the goal. Also, with respect to the expected goal time (predicted time), it is possible to cause the user 2 to judge the exercise result up to the present time, to plan to the goal, and the like. Further, when the pulse rate is excessively large, it is assumed that the user 2 is exercising excessively or is in poor physical condition, which is a problem from the viewpoint of safety. Therefore, in order not to make the user 2 unreasonable, it is preferable to output the current pulse rate.

4.4.3 Others The output mode may be changed when other conditions are satisfied. As conditions, for example, the following (1) to (4) can be used.

(1) When the user's moving distance information reaches a predetermined value The user 2 sets the predetermined value here in advance, for example. In this case, when swimming for a predetermined distance, it is possible to grasp information such as which position on the course and how much the deviation is from the output information. Further, the user 2 may adjust the pace in consideration of his / her fatigue level.

(2) When it is determined that the user has gone up to land The user 2 can easily view the display unit on land compared to underwater or on water. Therefore, the output unit 13 may change the output mode. The case of going up to land is considered to be a variety of cases, such as when a part of a water sports course includes a land route, when the sport itself is terminated, or when it is shifted to a land sport (such as a triathlon bike). It is done.

(3) When the pulse rate (heart rate) deviates from the given range The case where the pulse rate deviates from the predetermined range is, for example, when the exercise load is too high and the pulse rate becomes larger than the upper limit of the range. . In this case, for the safety and health of the user 2, it is necessary to take measures such as reducing the pace, so it is desirable to change the output mode. Note that when the pulse rate falls below the lower limit of the range during exercise, when there is a serious abnormality in the biological activity of the user 2, or an error occurs in the pulse sensor 115c, the circuit for calculating the pulse rate, or the like. It may be the case. Therefore, it can be said that it is desirable to change the output mode also in this case.

(4) When the pressure value is equal to or higher than the predetermined value The pressure value equal to or higher than the predetermined value indicates that the user terminal 1C (atmospheric pressure sensor 112c) is sinking to a deeper position in water than in the normal state. That is, since there is a possibility that an abnormality such as drowning of the user 2 has occurred, the output unit 13 changes the output mode. In this case, in consideration of the rescue of the target user, the output unit 13 outputs a loud sound that can be heard by the monitor or outputs (communications) information that notifies the management terminal 1A of an emergency. May be.

4.4.4 Modification In addition, the example in which the output mode is changed according to various conditions such as the deviation information, the state of exercise and pause, and the like has been described above. However, each condition does not need to be commonly used for all users, and the output unit 13 may change the output mode of the divergence degree information according to the option setting of the user 2.

  For example, the advanced user 2 tries to swim the shortest distance along the target (buoy) in order to compete for time. On the other hand, since the user 2 who is a beginner places importance on safety rather than time, he / she may avoid contact with other users by making a detour. Also, advanced swim skills are high for advanced players and low for beginners. In other words, the distance from the ideal line is often small for advanced users, and the distance from the ideal line is often large for beginners.

  For this reason, if the output mode is changed (for example, a warning is given that there is a large discrepancy due to the display or vibration output in FIG. 17), the output mode is not easily changed by advanced users. It happens that it can be easily changed. As a result, advanced users may not be warned even in situations where they want to be warned, and beginners may be warned while swimming as expected.

  Therefore, the output unit 13 may output according to the option setting. Specifically, the condition (threshold value) for determining the output mode is made variable by user setting. In the above example, the threshold value may be set small for advanced users, and the threshold value set large for beginners. If it does in this way, it will become possible to output deviation degree information by the mode according to user 2. Although the example using the distance from the ideal line has been described here, the option setting can be changed similarly for other conditions.

5. Process Flow FIG. 19 is a flowchart for explaining information output processing (an example of a performance monitoring method) by the performance monitoring apparatus 10. Here, output processing by the user terminal 1C will be described. As described above, various modifications can be made to the performance monitoring apparatus 10 and the performance monitoring system. In the following flowchart, the order of steps may be changed within a possible range.

  First, the processing unit 120c of the user terminal 1C executes a swim start determination process (S41), and determines whether or not a swim event has been started. The swim start determination can be realized by various methods such as user operation, user position, GPS reception environment, atmospheric pressure, inertial sensor, and water sensing.

  When it is determined that the swim event has been started (S41Y), the processing unit 120c of the user terminal 1C starts the measurement start process (S43), and when it is not determined that the swim event has been started (S41N), the processing unit of the user terminal 1C. 120c waits.

  In the measurement start process (S43), the processing unit 120c of the user terminal 1C starts driving the GPS sensor 110c, the geomagnetic sensor 111c, and other sensors of the user terminal 1C (however, some sensors are driven depending on user settings). You don't have to).

  For example, the processing unit 120c of the user terminal 1C starts acquisition of positioning data of the GPS sensor 110c, acquisition of geomagnetic data generated by the geomagnetic sensor 111c, and acquisition of other data. Among them, the positioning data includes the coordinates of the current position of the user terminal 1C and the traveling direction (velocity vector) of the user terminal 1C, and the geomagnetic data represents the current attitude (orientation) of the user terminal 1C. When driving of the sensors including the GPS sensor 110c and the geomagnetic sensor 111c starts to be started, positioning data, geomagnetic data, and other data start to be acquired at a predetermined time interval (for example, every 1 second). Hereinafter, the position coordinates included in the latest positioning data (an example of information related to the position of the user 2) are referred to as “current position coordinates”, and the traveling direction included in the latest positioning data is referred to as “current traveling direction” (user's An example of the moving direction), and the posture of the user terminal 1C represented by the latest geomagnetic data is referred to as a “current posture”.

  Next, the processing unit 120c of the user terminal 1C refers to the maximum waypoint number included in the course information currently stored in the storage unit 130c of the user terminal 1C, and determines the waypoint number N to be used in this flow. The maximum value Nmax is set to be the same as the referenced waypoint number. At the beginning of this flow, the processing unit 120c of the user terminal 1C sets the waypoint number N to be used in this flow to an initial value “1” (S45), and starts the following processing (S47 to S55). To do.

  First, the processing unit 120c of the user terminal 1C refers to the position coordinates associated with the waypoint number (N + 1) in the course information currently stored in the storage unit 130c of the user terminal 1C (S47). This position coordinate is the position coordinate of the waypoint (that is, the (N + 1) th waypoint) to which the user 2 should head at the present time.

  Next, the processing unit 120c of the user terminal 1C generates divergence degree information based on the position coordinates of the Nth waypoint and the (N + 1) th waypoint and the current position coordinates, and the divergence degree is displayed on the display unit 170c. Information is displayed (S49). Although not shown in FIG. 19, the processing unit 120 c may perform a process of determining various conditions and determining an output mode of the divergence degree information in the process of S <b> 49. In addition, the processing unit 120c may display the navigation information described above in the process of S49.

  Next, the processing unit 120c of the user terminal 1C refers to the position coordinates associated with the waypoint number (N + 1) in the course information currently stored in the storage unit 130c of the user terminal 1C, and the position coordinates It is determined whether or not the user 2 has arrived at the (N + 1) th waypoint by determining whether or not the current position coordinates belong within a predetermined distance range centered on (S51).

  When the user 2 has not arrived at the (N + 1) th waypoint (S51N), the processing unit 120c of the user terminal 1C returns to the process (S47) for referring to the position coordinates, and the user 2 is the (N + 1) th waypoint. When it arrives at the waypoint (S51Y), the increment process (S53) is started.

  In the increment process (S53), the processing unit 120c of the user terminal 1C increases the waypoint number N to be used in this flow by “1”, and then starts the lap information notification process (S55).

  In the lap information notification process (S55), the processing unit 120c of the user terminal 1C notifies the user 2 of the lap information of the section from the (N-1) th waypoint to the Nth waypoint. The lap information includes, for example, the movement time (lap time) of the section, the water entry time (swim time) of the section, the average movement speed (lap pace) of the section, the average heart rate (lap heart rate) of the section. included. The lap information may include divergence information that is difference information or ratio information between the set distance in the section and the actual movement distance of the user 2. Further, the lap information may include divergence degree information that is time difference information between the set time in the section and the actual travel time of the user 2. Note that the lap information notification process (S55) may be performed at an arbitrary timing or may be omitted as long as the Nth waypoint has arrived.

  Next, the processing unit 120c of the user terminal 1C determines whether or not the waypoint number N to be used in this flow has reached Nmax (S57), and if it has reached (S57Y), the user 2 has reached the goal ( Assuming that the start point S) has been reached, the flow is terminated. If the flow has not been reached (S57N), the information output processing (S47 to S55) is resumed.

  As mentioned above, although embodiment and its modification which applied this invention were described, this invention is not limited to each embodiment and its modification as it is, and in the range which does not deviate from the summary of invention in an implementation stage. The component can be modified and embodied. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments and modifications. For example, some constituent elements may be deleted from all the constituent elements described in each embodiment or modification. Furthermore, you may combine suitably the component demonstrated in different embodiment and modification. In addition, a term described together with a different term having a broader meaning or the same meaning at least once in the specification or the drawings can be replaced with the different term anywhere in the specification or the drawings. Thus, various modifications and applications are possible without departing from the spirit of the invention.

BY-1 to BY-3 ... buoy, BYi, BYi + 1 ... target, SG ... gate,
SM ... mat, TG ... tag, 1A ... management terminal, 1B ... buoy terminal, 1C ... user terminal,
2 ... user, 10 ... performance monitoring device, 11 ... storage unit, 12 ... processing unit,
13 ... Output unit, 100C ... Course, 110b, 110c ... GPS sensor,
111c: Geomagnetic sensor, 112c: Air pressure sensor, 113c: Acceleration sensor,
114c ... angular velocity sensor, 115c ... pulse sensor, 116c ... temperature sensor,
120a-120c ... processing unit, 130a-130c ... storage unit,
150a, 150c ... operation unit, 160a-160c ... timing unit,
170a, 170c ... display unit, 180c ... sound output unit, 190a-190c ... communication unit,
191a-191c ... Battery

Claims (14)

A performance monitoring device for water sports,
A storage unit for storing information related to the positions of the first to Mth targets (M is an integer of 2 or more);
Information related to the position of the user who performs the water sport is acquired, and the degree of divergence of the user with respect to the water channel connecting the i th target (i is an integer of 1 ≦ i ≦ M−1) and the i + 1 th target A processing unit for requesting information;
An output unit for outputting the divergence degree information;
A performance monitoring device comprising: In claim 1,
The divergence degree information is information representing a distance between the water channel and the position of the user. In claim 1 or 2,
The performance monitoring apparatus according to claim 1, wherein the deviation degree information is information indicating a deviation degree of the movement distance information of the user with respect to the distance information of the water channel. In claim 3,
The divergence degree information is at least one of difference information and ratio information between a waterway distance represented by the distance information of the waterway and a movement distance represented by the movement distance information of the user. Performance monitoring device. In claim 3 or 4,
The deviation information is
Performance monitoring comprising information indicating a degree of deviation of the total movement distance information of the user with respect to the total distance information of the water channel connecting three or more of the first to Mth targets. apparatus. In any one of Claims 1 thru | or 5,
The output unit is a display unit,
The display unit
A performance monitoring apparatus that displays the divergence degree information. In claim 6,
The display unit
A performance monitoring apparatus characterized in that the divergence degree information is displayed with higher visibility than other information. In any one of Claims 1 thru | or 7,
The output unit is
The performance monitoring apparatus characterized in that the divergence degree information is output by at least one of vibration, light, and sound. In any one of Claims 1 thru | or 8.
The output unit is
A performance monitoring apparatus, wherein an output mode of the divergence degree information is varied according to a divergence degree. In any one of Claims 1 thru | or 9,
The output unit is
A performance monitoring apparatus, wherein the output mode of the divergence degree information is different between when the user is determined to be in a resting state and when the user is determined to be in an exercise state. In any one of Claims 1 thru | or 10.
The output unit is
A performance monitoring apparatus, wherein an output mode of the divergence degree information is varied according to an option setting of the user. In any one of Claims 1 thru | or 11,
At least one of the first to Mth targets is a moving target;
The processor is
A performance monitoring apparatus that performs an update process of information on the position of the moving target. A performance monitoring system for water sports,
A storage unit for storing information related to the positions of the first to Mth targets (M is an integer of 2 or more);
Information related to the position of the user who performs the water sport is acquired, and the degree of divergence of the user with respect to the water channel connecting the i th target (i is an integer of 1 ≦ i ≦ M−1) and the i + 1 th target A processing unit for requesting information;
An output unit for outputting the divergence degree information;
A performance monitoring system characterized by including: A performance monitoring method for water sports,
Obtaining information related to the positions of the first to Mth targets (M is an integer of 2 or more);
Obtaining information related to the location of the user performing the water sports;
Obtaining information on the degree of divergence of the user with respect to the channel connecting the i-th target (i is an integer of 1 ≦ i ≦ M−1) and the i + 1th target,
Outputting the deviation information;
A performance monitoring method characterized by this.