WO2005098360A1 - Information presentation device, route guidance device, information presentation program, information recording medium, and information presentation method - Google Patents

Abstract

Provided are an information presentation device, an information presentation program, etc. The information presentation device specifies an object being visually perceived by a driver and then presents information for calling attention and other pieces of information or presents route guidance information again, enabling the driver to be reliably guided through a route. The information presentation program is used for presentation control of the information. An information presentation device has a speaker (17) for outputting route guidance information for performing route guidance for a driver driving a vehicle, a visually perceived position specifying section (12) for detecting the line of sight of the driver and specifying an object visually perceived by the driver, a system control section (18) for determining if the object visually perceived by the driver is an object relating to the outputted route guidance information, and the speaker (17) for presenting route guidance information again or presenting information calling for attention and other pieces of information relating to the route guidance information.

Description

 Specification

 Information presentation device, route guidance device, information presentation program, information recording medium, and

 Information presentation method

 Technical field

 The present application belongs to a technical field such as an information presentation device, an information presentation program, and an information presentation method.

 Background art

 [0002] In recent years, a navigation device that displays a map on a display such as a liquid crystal display panel mounted on a vehicle or the like and guides the movement of a vehicle or the like by voice route guidance has been widely used. I'm ridiculous.

 [0003] On the other hand, while driving the vehicle, the driver constantly looks at the surroundings inside and outside the vehicle by looking at the display of the navigation device or by seeing a knock mirror or a side mirror for safe driving. are doing. Further, a technology for detecting a movement of a line of sight with respect to a device in a vehicle is disclosed (for example, refer to Patent Document 1).

 Patent Document 1: Japanese Patent Application Laid-Open No. 2001-194161

 Disclosure of the invention

 Problems to be solved by the invention

[0004] In the case where route guidance is provided by screen display or voice by the navigation device, when the driver overlooks the route guidance or when he / she cannot hear the route guidance, the driver may use the screen display or voice. Recognized the route guidance by

[0005] Therefore, the present application has been made in order to solve the above-mentioned problem, and it is necessary for a driver to visually recognize and identify a certain thing to present related information and the like to surely provide a route guidance to the driver. It is an example of an object to provide an information presenting apparatus, an information presenting program, an information presenting method, and the like that enable the above.

 Means for solving the problem

[0006] In order to solve the above problem, the invention according to claim 1 provides a route guidance information for presenting route guidance information for performing route guidance to a driver driving a moving body. Indicating means, detecting position specifying means for detecting the driver's line of sight and specifying the thing visually recognized by the driver, and the thing visually recognized by the driver related to the presented route guidance information. Determining means for judging whether the object is a thing, and related information presenting means for presenting related information relating to the information in the route plan based on the judgment.

[0007] In order to solve the above problem, an invention according to claim 8 is a route guidance device mounted on a moving object, and the information presentation device according to any one of claims 1 to 7 It is characterized by comprising a device.

 [0008] In order to solve the above problem, the invention according to claim 9 provides a computer that presents route guidance information for performing route guidance to a driver driving a moving body, and Detecting the line of sight, identifying the thing visually recognized by the driver, determining the physical force recognized by the driver as to whether the item is related to the presented route guidance information, and, based on the determination, determining the route based on the determination. It is characterized by functioning to present related information related to guidance information.

 [0009] In order to solve the above problem, an invention according to claim 10 is characterized in that the information presentation program S according to claim 9 is recorded in a manner readable by the computer.

 [0010] In order to solve the above problem, the invention according to claim 11 provides a route guidance information presenting step for presenting route guidance information for performing route guidance to a driver driving a moving body. And a visual recognition position specifying step for detecting the driver's line of sight to specify the visual recognition of the driver, and the visual recognition of the driver is a relevant thing to the presented route guidance information. And a related information presenting step of presenting related information relating to the route guidance information based on the determination.

 Brief Description of Drawings

 FIG. 1 is a block diagram showing a schematic configuration of a navigation device 1 according to the present embodiment.

FIG. 2 is a flowchart showing a first route guidance process in the navigation device 1 FIG. 3 is a display example of map data displayed on a display unit 13 in the present embodiment.

 FIG. 4 is a flowchart showing a second route guidance process in the navigation device 1

FIG. 5 is a flowchart showing a third route guidance process in the navigation device 1

 1… Navigation device

 2—GPS receiver

 3 Own vehicle position calculation unit

 VICS data receiver

5A… Map database

 6… Map data reading section

 7Operation input section

 8External image acquisition unit

 8A… Camera

 9A… Vehicle speed detector

 9B-… gyro sensor

 lO- Eye gaze detector

 l l- Distance measuring unit

 12 Viewing position identification unit

 13Display unit

 14

 isDisplay control unit

 le- ... Sound processing circuit

 17 Speaker

 18 System control section

19 BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. The embodiment described below is an embodiment in which the information presenting device according to the present invention is applied to an in-vehicle navigation device 1 as a route guidance device mounted on a vehicle as a moving body. is there.

 [Configuration and Function of Navigation Device]

 First, the configuration and functions of a navigation device 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram illustrating a schematic configuration of a navigation device 1 according to the present embodiment.

 [0014] As shown in FIG. 1, the navigation device 1 of the present embodiment includes a GPS (Global Positioning).

 GPS receiver 2 that receives radio waves from a plurality of satellites belonging to the System) via the antenna AT as GPS data, and the vehicle position that calculates the vehicle position based on the GPS data and travel data A calculator 3, a VICS data receiver 4 for receiving VICS (Vehicle Information Communication System) data, and map data for reading data from a storage 5 having a map database 5A in which data such as map data is recorded in advance. A reading unit 6, an operation input unit 7 used when a user performs various settings and inputs a command to the system, a camera 8A installed in the vehicle for photographing the outside of the vehicle, and navigation of the photographed image. External image acquisition unit 8 to be taken into the device 1, a vehicle speed detection unit 9A for detecting the speed of the vehicle, a gyro sensor unit 9B for detecting the traveling direction of the vehicle, and the shape of the driver's pupil. A line-of-sight detection unit 10 that detects the driver's line of sight by detecting the state of the driver, a distance measurement unit 11 that is configured by a laser radar or the like, measures the distance between the vehicle and an object outside the vehicle, and obtains distance information, A viewing position identification unit 12 that detects the driver's line of sight, a display unit 13 that displays map data, etc., a display control unit 15 that controls the display unit 13 using a buffer memory 14, and a route guidance unit. The system includes a voice processing circuit section 16 for generating voice, a speaker 17 for outputting the generated voice, and a system control section 18 for controlling the entire system. Connected to each other.

[0015] The GPS receiver 2 transmits a plurality of satellite-powered radio waves belonging to the GPS via the antenna AT. In addition to receiving the received radio wave, a pseudo coordinate value of the current position of the moving object is calculated based on the received radio wave and output to the vehicle position calculating unit 3 as GPS data! RU

 The host vehicle position calculation unit 3 functions as a moving object position information acquisition unit together with the system control unit 18 and performs processing between the system control unit 18 and the vehicle speed detection unit 9A and the GPS reception unit 2. The configuration is such that the vehicle position is calculated based on the input GPS data and traveling data such as vehicle speed, and the vehicle position is output to the system control unit 18 as vehicle position data. It should be noted that the vehicle position data is collated with map data, which will be described later, in the system control unit 18 so that a map matching process or the like is executed.

 [0017] The VICS data receiving unit 4 is configured to acquire VICS data by receiving radio waves such as FM multiplex broadcasting, and is configured to output the acquired VICS data to the system control unit 18. ing.

 VICS indicates a road traffic information communication system, and VICS data refers to road traffic information such as traffic regulation information and congestion information.

 [0018] The storage unit 5 includes a map database 5A that stores map data such as a road map. This map data is the map data necessary for the navigation operation. When the driver sets a route from the current position of the vehicle to the destination, the current position of the vehicle before starting the route guidance of the vehicle, Based on the set route to the destination, the map database 5A of the storage unit 5 is also configured so that corresponding map data is acquired and output to the display unit 13.

 The operation input unit 7 is configured to include a number of keys such as input buttons and numeric keys. In particular, the operation input unit 7 displays a command to display vehicle driving information, and inputs and sets a destination to which the vehicle should reach. It is configured to be used to input a driver command.

 [0020] The external image acquisition unit 8 functions as an external image acquisition unit together with the camera 8A, and includes a camera 8A that is installed in the vehicle and captures the vehicle traveling direction, that is, the front of the vehicle. It is configured to take in a captured image into the navigation device 1 as external image information.

[0021] The vehicle speed detecting section 9A detects running data such as the running speed of the vehicle, and outputs the detected running data to the vehicle position calculating section 3. concrete The vehicle speed detection unit 9A is configured to detect the running speed of the vehicle, convert the detected speed into speed data having a pulse or voltage form, and output the speed data to the host vehicle position calculation unit 3. ing.

 The gyro sensor unit 9B detects, for example, the azimuth angle of the vehicle, ie, the traveling direction of the vehicle, and converts the detected azimuth angle to azimuth angle data having a pulse or voltage form, and It is configured to output to the position calculation unit 3.

The line-of-sight detecting unit 10 functions as a line-of-sight position specifying unit together with the above-mentioned line-of-sight position specifying unit 12.

In addition, the state of the driver's pupil is detected, and visual information indicating a position visually recognized by the driver is detected and output to the visual position specifying unit 12.

The distance measurement unit 11 functions as a distance acquisition unit, is configured by a laser radar, or the like, measures the distance between an object outside the vehicle and the vehicle, acquires distance information, and outputs the distance information to the visible position identification unit 12. It is configured as follows.

 [0025] The viewing position identification unit 12 functions as a gaze position identification unit together with the gaze detection unit 10, and includes viewing information detected by the gaze detection unit 10, distance information acquired by the distance measurement unit 11, The driver can visually recognize the map data obtained from the map database 5A, the external image information obtained by the external image obtaining unit 8, and route guidance information R by voice based on voice data described later. This is to identify what has been done.

 [0026] More specifically, the external image information is analyzed to identify an object outside the vehicle, and based on the line-of-sight information, the driver on the external image information visually recognizes the object and moves in a certain direction. By identifying a certain object and oscillating the laser radar provided in the distance measurement unit 11 in the direction, the distance to the object is measured, and the measured distance and the analysis result of the external image information are measured. Is compared with the map data obtained from the map database 5A to identify the object visually recognized by the driver.

The display unit 13 functions as a route guidance information presenting means together with the display control unit 15 and the system control unit 18, and is configured by, for example, a liquid crystal display or a CRT. The acquired map data is displayed in various forms, and is superimposed on the acquired map data as information on the vehicle position and route guidance (route guidance information) described later. It is configured to display the route guidance information R of.

 [0028] Further, the display unit 13 functions as a related information presenting means together with the display control unit 15 and the system control unit 18, and the driver correctly recognizes the route guidance information in a route guidance operation described later in detail. When it is determined that there is no route guidance information, related information related to the route guidance information is displayed. The related information may be, for example, the route guidance information R itself. In this case, the route guidance information R is provided again.

 [0029] The display control unit 15 receives map data input via the system control unit 18, and the display control unit 15 performs display based on an instruction from the system control unit 18. The display map data to be displayed on the display unit 13 is generated and temporarily stored in the buffer memory 14, while the map data to be displayed is read out from the buffer memory 14 at a predetermined timing and output to the display unit 13 for display. Have been.

 The display control unit 15 functions as a route guidance information presenting unit and a related information presenting unit together with the display unit 13 and the system control unit 18, and displays the route guidance information based on an instruction of the system control unit 18. When the driver does not recognize the route guidance information correctly, the related information related to the route guidance information is displayed on the display unit 13.

 The voice processing circuit unit 16 functions as a route output information presenting unit and a related information presenting unit together with the speaker 17 and the system control unit 18 while functioning as a voice output unit. A voice signal is generated, and the generated voice signal is loudspeaked through a speed force 17.For example, the direction of the vehicle at the next intersection or the driver should be notified directly in the driving guidance. It is configured to output to the speaker 17 an audio signal as route guidance information R as information (route guidance information) on route guidance including road closure information and the like.

 [0032] Further, the voice processing circuit section 16 functions as related information presenting means together with the speaker 17 and the system control section 18, and in a route guidance operation described in detail later, it is necessary that the driver does not correctly recognize the route guidance information. If it is determined, the information related to the route guidance information is displayed.

[0033] The system control unit 18 includes a CPU (Central Processing Unit) and a work RAM (not shown). Random Access Memory), a ROM (Read Only Memory) that stores various control programs including an information presentation program, etc., data, etc., and an oscillation circuit, etc., based on an operation signal from an operation unit (not shown). In order to realize the operation corresponding to the operation information included in the operation signal, control information for controlling each of the above components is generated, and the control information is output to the corresponding component via the bus 19. Then, the operation of each component is supervised and controlled.

[0034] More specifically, various input / output ports such as a GPS reception port, a key input port, and a display unit 13 control port are provided so as to comprehensively control general functions for navigation processing. Has become.

 Further, the system control unit 18 functions as moving body position information acquisition means together with the own vehicle position calculation unit 3 and, when performing a navigation operation, the vehicle output from the own vehicle position calculation unit 3 Correction processing such as map matching is performed based on the position data and the map data, and control is performed so that the route plan information is displayed on a map indicating the surrounding area including the current position of the vehicle on the display unit 13. The voice processing circuit 16 controls the travel route information and the like so as to be output as a voice.

 [0036] The system control unit 18 functions as a map data acquisition unit. When the driver operates the operation input unit 7 to input a destination and set a route, the system control unit 18 operates before starting route guidance. The map data is stored in the map database 5A based on the set route and the set transfer conditions, and can be obtained and output to the display unit 13 as route information. !

Further, the system control unit 18 functions as a route guidance information presenting unit and a related information presenting unit together with the display unit 13, the display control unit 15, the audio processing circuit unit 16 and the speaker 17, and along with the route guidance, The map data is stored in the map database 5A to manage map data and the like. During navigation operation, map data to be displayed is acquired and route guidance information is displayed via the display control unit 15. In addition to outputting R to the display unit 13, an audio signal as the corresponding route guidance information R is output to the speaker 17, and an image is displayed on the display unit 13. In addition, based on the route guidance processing described in detail later, the route guidance information R output from the speaker 17 and the related information related to the route guidance information R displayed on the display unit 13 are displayed. The information is output via the speaker 17 or is displayed on the display unit 13. The related information may be, for example, the route guidance information R itself. In this case, the route guidance information R is provided again.

[0038] Further, the system control unit 18 functions as a determination unit, a number-of-viewing-times comparison unit, and a viewing-time comparison unit. When the power, which is a matter related to the content, is specified, the number of times of the visual recognition is counted, or the visual recognition time is measured to determine whether or not the power to present the relevant information is determined.

 [First Route Guidance Operation]

 Next, a specific method of the route guidance operation according to the present embodiment will be described with reference to FIGS.

 FIG. 2 is a flowchart showing a first route guidance process in the navigation device 1. It is assumed that the navigation device 1 has already been activated, and the map data corresponding to the route set by the driver has already been obtained from the operation input unit 7 from the map database 5A and displayed on the display unit 13. Shall be.

 In a first route guidance operation described in detail below, the route guidance information (voice or image information) R is output as a voice via the speaker 17 under the control of the system control unit 18. As a result, the process is started when the route guidance information R is displayed on the display unit 13 or Z. In addition, the route guidance information R by voice output is, for example, a voice that "It is about to turn right. Please change lanes to the right." The information R is, for example, near the intersection to be turned, the road in the traveling direction is color-coded and enlarged and displayed, or the name of the intersection is displayed.

[0042] First, when the above-described route guidance information R is guided to the driver via the speakers 17 and Z or the display unit 13, the GPS data acquired by the GPS reception unit 2 and the vehicle speed detection unit 9A acquire the GPS data. The system control unit 18 determines whether or not the vehicle is within the target range of the route guidance information R that triggered the start of the route guidance process on the basis of the traveling data such as the detected vehicle speed (step Sl). In step SI, if the vehicle is not within the target range of the route guidance information R from which the route guidance process was started (step SI: No), the process ends. Note that the target range is within a predetermined distance range from a point at which the route plan information (voice or image information) R, which triggered the start of the route guidance process, is given.

 [0044] If a vehicle exists within the target range of the route guidance information R that triggered the start of the route guidance process (step S1: Yes), the driver identifies the thing visually recognized. In order to perform visual recognition analysis while measuring the visual analysis time, measurement of the visual analysis time is started (step S2). It should be noted that the time is measured based on a date clock built in the navigation device 1!

 Then, the visual recognition information detected by the line-of-sight detection unit 10, the distance information obtained by the distance measurement unit 11, the map data obtained by the map database 5A, and the external information obtained by the external image obtaining unit 8 Based on the image information and the route guidance information R that triggered the start of the route guidance process, the visual recognition position specifying unit 12 specifies the thing visually recognized by the driver (step S3).

 Then, in step S3, the number of times of visual recognition of the object visually recognized is counted (step S4). More specifically, in a later process, in order to compare the number of times of visual recognition of the visually recognized object, the number of times of visual recognition is counted for each visually recognized object and is stored in the number of visual recognition storage area of the knocker memory of the system control unit 18. . That is, when the visually recognized thing is specified in step S3, the number of times the visually recognized thing is viewed in step S4 is incremented by one.

 Next, it is determined whether or not the force has reached the visual analysis time that has reached the first predetermined time.

 (Step S5). That is, if the first predetermined time is 5 seconds, the driver identifies the object visually recognized within 5 seconds (step S3) and counts the number of times the driver has viewed the image (step S4). Become.

 If it is determined in step S5 that the first predetermined time has not been reached (step S5: No), the processing in steps S3 and S4 is performed until the first predetermined time is reached. Repeatedly, when it is determined that the first predetermined time has been reached (step S5: Yes), the number of times of visual recognition counted in step S4 is compared (step S6).

[0049] More specifically, the driver looks at an object that is completely unrelated to the contents of the route guidance information R. Compare the number of times that the number of recognized items has been updated with the number of times that the content related to the content of the route guidance information R has been updated

Here, the thing visually recognized by the driver and the matter related to the route guidance information will be described with reference to the drawings. FIG. 3 is a display example of the map data displayed on the display unit 13 based on the route guidance information scale that triggered the start of the route guidance process, and the map data is displayed on the map within the first predetermined time. In, signals XI, X2, X3, and X4 are the traffic signals as the objects visually recognized by the driver (the objects identified by the processing in step S3).

 [0051] In the figure, an arrow indicates a route when voice guidance "300 m ahead, turn right" is given by the route guidance information R that triggered the route guidance process.

 [0052] The things that the driver has visually recognized during the first predetermined time are related to the first traffic light XI, the second traffic light X2, the previous traffic light X3, and the route guidance information R. When the signal X4 as an object is specified (step S3), the number of times that each of the signals is visually recognized is counted (step S4).

 [0053] That is, in the process of comparing the number of times of recognition in step S6, the number of times N (X1) in which the first traffic light XI was visually recognized, the number of times N (X2) in which the second traffic light X2 was visually recognized, and the immediately preceding number The number of times N (X3) in which the traffic signal X3 was visually recognized is compared with the number N (X4) in which the traffic signal X4 related to the route guidance information R was visually recognized (step S6).

 [0054] Then, as a result of the determination in step S6, the number N (XI) of viewing the traffic signal XI ahead, the number N (X2) of viewing the traffic signal X2 ahead, and the traffic signal X3 immediately preceding it are visually recognized. If the total number of times N (X3) is equal to or greater than the number N (X4) of times when the traffic signal X4 related to the route guidance information R has been viewed (step S6: N (XI) + N (X2) + N ( X3) ≥N (X4)), the driver correctly understands the route guidance information R, determines that it is not, and based on the control of the system control unit 18, again outputs the audio signal as the route guidance information R to the speaker. 17 and an image signal as Z or route guidance information R is output to the display unit 13 to re-guide the driver (step S7).

[0055] For example, when the route guidance information R indicating "turn right at 300m" is given, or there is a !, despite the enlarged view of the intersection to be turned right at 300m ahead on the display unit 13, The driver is looking at the traffic signal and the store at a distance of 500 m, or looking at the left. Again, or if the driver's visual position at the first predetermined time is not determined and the driver is opening the mouth, the audio signal as the route guidance information R is again output to the speaker. 17 and output the image information as Z or route guidance information R to the display unit 13 to provide the driver with guidance again, so that the driver can be surely recognized the route guidance information R. Become.

 [0056] On the other hand, the number of times N (XI) that saw the traffic signal XI ahead, the number N (X2) that saw the traffic signal X2 ahead, and the number N (X3) that saw the traffic signal X3 immediately before it If the total number is smaller than the number N (X4) at which the traffic signal X4 related to the in-route information R was viewed ((Step S6: N (X4)> N (X1) + N (X2) + N (X3 )), Since it can be determined that the driver has correctly understood the route guidance information R, the processing without re-guidance is terminated.

 Note that a visual feature information storage unit that stores visual feature information indicating the relationship between the driver's past visual characteristics and the route guidance information R may be provided. In this case, the determination based on the comparison of the number of times of recognition in step S6 may be adjusted according to the driver's visual characteristic information stored in the visual characteristic storage means!

 [0058] More specifically, in step S6, the number N (XI) of times when the first traffic signal XI was visually recognized, the number N (X2) of times when the second traffic signal X2 was visually recognized, and the number of the previous traffic signal X3 Even if it is determined that the total number of times N (X3) has been viewed is equal to or greater than the number N (X4) of times that the traffic signal X4 related to the route guidance information R has been viewed, (N (XI) + N (X2 ) + N (X3) ≥ N (X4), for example, the number N (X4) of viewing traffic signal X4 related to route guidance information R, and the number N (XI) of viewing traffic signal XI ahead When the difference between the total number of times N (X2) that saw the traffic signal X2 ahead and the number N (X3) that saw the previous traffic signal X3 is 5 or less (or another predetermined number or less) Is to run the route guided by the route guidance information R without fail! /, If there is a track record! /, In such a case, do not re-guide! !,.

 [Second Route Guidance Operation]

Next, a method of a second route guidance operation using the above-described navigation device 1 will be described. Note that the configuration and functions of the navigation device 1 are the same as those in the above-described embodiment. In the first route guidance process described above, the route guidance information R is re-guided by comparing the number of times of recognition for each visually recognized thing. However, in the second route guidance operation method described below, it is determined whether or not the route guidance information R is to be re-guided by comparing the viewing time of each visually recognized object.

 FIG. 4 is a flowchart showing a second route guidance process in the navigation device 1. It is assumed that the navigation device 1 has already been activated, and the map data corresponding to the route set by the driver has already been obtained from the operation input unit 7 from the map database 5A and displayed on the display unit 13. Shall be.

 In the route guidance operation described below, the route guidance information (voice or image information) R outputs the speed 17 based on the control of the system control unit 18 in the same manner as the above-described route guidance operation. The processing is started when the voice guidance is output through the switch or when Z or the route guidance information R is displayed on the display unit 13.

 [0062] First, when the route guidance information R is guided to the driver via the speakers 17 and Z or the display unit 13, the system determines whether or not the vehicle exists within the target range of the route guidance information R. The control unit 18 makes a determination (step S11).

 [0063] In step S11, if the vehicle is not within the target range of the route guidance information R from which the route guidance process was started (step Sll: No), the process ends. If there is a vehicle within the target range of the route guidance information R (step S11: Yes), in order to perform the visual analysis for identifying the thing visually recognized by the driver while measuring the time of the visual analysis. Then, measurement of the visual analysis time is started (step S12).

 Then, the thing visually recognized by the driver is specified by the viewing position specifying unit 12 (Step S13).

 The processing up to this point, that is, the processing from step S11 to step S13, is the same as the processing from step S1 to step S3 in the first route guidance operation described in detail with reference to FIG. .

[0066] Then, the visual recognition time for each visually recognized thing is measured and integrated (step S14). More specifically, in a later process, in order to compare the total viewing time of the visually recognized objects, the viewing time is integrated for each of the visually recognized objects and stored in the total viewing time storage area of the buffer memory of the system control unit 18. save. That is, in step S13, the visually recognized thing is specified. Then, in step S14, the time at which the visually recognized object is viewed is added up as the total viewing time.

 Next, it is determined whether or not the force has reached the visual analysis time that has reached the first predetermined time.

 (Step S15). If it is determined in step S15 that the first predetermined time has not been reached (step S15: No), the processing in steps SI3 and S14 is repeated until the first predetermined time is reached. When it is determined that the first predetermined time has been reached (step S15: Yes), the visual recognition total time measured (integrated) in step S14 is compared (step S16). More specifically, the total time during which the driver has visually recognized an object having no relation to the contents of the route guidance information R within the first predetermined time, Is compared with the total time of viewing.

 [0068] Referring to Fig. 3, the total time T (X1) in which the traffic signal XI ahead was visually recognized, the total time 視 認 (Χ2) in which the traffic signal Χ2 ahead was visually recognized, and the traffic signal Χ3 immediately before were The total time of viewing time Τ (Χ3) is compared with the total time of viewing traffic light Χ4 related to route guidance information R Χ (Χ4) (step S16).

 [0069] Then, as a result of the determination in step S16, the total time during which the next traffic signal XI was viewed Τ

 (Xl), the total time when you saw the traffic signal つ 2 ahead Χ2 Τ (Χ2), the total time when you saw the traffic signal 前 3 immediately before Χ3 Τ The total time of (Τ3) is the traffic signal related to the route guidance information R Χ4 If it is more than 合計 (し た 4) or more (step S16: Τ (XI) + Τ (Χ2) + Τ (Χ3) ≥ Τ (4)), the driver gives the route guidance information R. It is determined that they do not understand correctly, and based on the control of the system control unit 18, the audio signal as the route guidance information R is output to the speaker 17 again, and the image signal as the route guidance information R is output. The information is output to the display unit 13 to re-guide the driver (step S17).

 [0070] On the other hand, the total time of viewing the signal XI at the next point Τ (Τ1), the total time of viewing the signal 22 at the next point Τ (Χ2), and the total time of viewing the signal Χ3 at the previous point Τ ( Total time of Χ3) Force Total traffic signal related to route guidance information R 合計 Total time of viewing Τ4 If it is smaller than Τ (Χ4) (Step S16: T (X4)> T (X1) + T (X2) + T (X3)), since it can be determined that the driver has correctly understood the route guidance information R, the processing without re-guidance is terminated.

In the above-described route guidance operation, the characteristics of the driver's past visual recognition and the route guidance information R If visual characteristic information storage means for storing visual characteristic information indicating the relationship with the driver is provided, the total visual recognition time in step S16 is determined in accordance with the driver's visual characteristic information stored in the visual characteristic storage means. The determination of re-guidance by comparison may be adjusted.

 [0072] More specifically, in step S16, the total time T during which the next traffic signal XI was visually recognized

 (Xl), the total time T (X2) when viewing the traffic signal X2 ahead, and the total time when viewing the traffic signal Χ3 immediately before Χ (Χ3) The traffic signal related to the route guidance information R Χ4 (XI (XI) + Τ (Χ2) + Τ (Χ3) ≥ Τ (Χ4), for example, if the route guidance information R Total time to see related traffic light Χ4 Τ (Χ4), Total time to see traffic light XI ahead の (Χ1), Total time to see traffic light Χ2 two ahead 2 (Χ2), 1 If the difference from the total time of the traffic signal Χ3 in front of you Χ3 and the total time of Τ (Χ3) is 3 seconds or less (or another predetermined time or less), the route guidance information R has been provided without fail so far. If there is a track record of traveling on the route, do not give a new guidance.

 [Third Route Guidance Operation]

 Next, a third route guidance operation method using the navigation device 1 will be described. Note that the configuration and functions of the navigation device 1 are the same as those in the above-described embodiment. In the first and second route guidance processes described above, whether or not the user has the ability to re-guide the route guidance information R is determined by comparing the number of times of visual recognition of each visually recognized object and the total visual recognition time. However, in the third route guidance operation method described below, the route guidance information R is re-guided based on whether or not an object related to the route guidance information has been viewed for a predetermined visual recognition time or longer. Determine whether or not.

 FIG. 5 is a flowchart showing a third route guidance process in the navigation device 1. It is assumed that the navigation device 1 has already been activated, and map data corresponding to the route set by the driver has already been obtained from the operation input unit 7 from the map database 5Α and displayed on the display unit 13. Shall be.

[0075] The route guidance operation described in detail below is based on the control of the system control unit 18 in the same manner as the first and second route guidance operations described above, and the route guidance information (voice or image information) is provided. The sound is output via the R-force speaker 17 and / or The process starts when the route guidance information R is displayed.

First, when the route guidance information R is guided to the driver via the speakers 17 and Z or the display unit 13, the system determines whether or not the vehicle exists within the target range of the route guidance information R. The control unit 18 makes a determination (step S21).

[0077] In step S21, if the vehicle is not within the target range of the route guidance information R that triggered the start of the route guidance process (step S21: No), the process ends, and the route is terminated. If the vehicle is within the target range of the guidance information R (step S21: Yes), the visual recognition is performed to determine the thing visually recognized by the driver while measuring the time of the visual analysis. The measurement of the analysis time is started (step S22).

Then, the thing visually recognized by the driver is specified by the viewing position specifying unit 12 (Step S23).

 The processing up to this point, that is, the processing from step S11 to step S13, is the same as the processing from step S1 to step S3 in the first route guidance operation described in detail with reference to FIG. .

 Then, the visual recognition time of each visually recognized thing is measured and integrated (step S24). Specifically, the time during which the object related to the route guidance information R is visually recognized is integrated and stored in the total visible time storage area of the buffer memory of the system control unit 18. That is, when the visually recognized thing is specified in step S23, the viewing time when the visually recognized thing is the thing related to the route guidance information R in step S24 is integrated as the total viewing time.

 Next, it is determined whether or not the force has reached the visual analysis time which has reached the first predetermined time.

 (Step S25). If it is determined that the first predetermined time has not been reached as a result of the determination in step S25 (step S25: No), the processing of steps S23 and S24 is repeated until the first predetermined time is reached. If it is determined that the first predetermined time has been reached (step S25: Yes), it is determined whether or not the user has perceived the object related to the route guidance information for the visual recognition time as the second predetermined time. A determination is made (step S26).

Referring to FIG. 3, it is determined whether or not the driver has perceived an object related to the route guidance information scale for the first predetermined time period for the visual recognition time as the second predetermined time period. System The system control unit 18 makes the determination. For example, when the recognition time is 2 seconds, the route guidance information R provides a route guidance of "300m ahead, turn right." The intersection at 300m is enlarged and displayed on the display unit 13. In such a case, if the driver visually recognizes the traffic signal or the store at the intersection where the driver should make a right turn for more than 2 seconds, it can be determined that the driver has properly understood the route guidance information R.

 [0083] Therefore, when the driver visually recognizes the object related to the route guidance information R for the visual recognition time or longer (step S26: Yes), the process ends without performing re-guidance, and the driver returns to the route guidance information R. If the driver recognizes the thing related to the guidance information R for more than the visual recognition time or longer (step S26: No), it is determined that the driver does not correctly understand the route guidance information R, and the system controller 18 Based on the above control, the voice signal as the route guidance information R is output to the speaker 17 again, and the image signal as Z or the route guidance information R is output to the display unit 13 to perform the guidance again to the driver ( Step S27).

 In the above-described route guidance operation, in the case where a visual feature information storage unit that stores and stores visual feature information indicating a relationship between the driver's past visual recognition characteristics and the route guidance information R is provided. The system control unit 18 functions as the adjusting means for a predetermined time in accordance with the driver's visual characteristic information stored in the characteristic storage means, and according to the driver's visual characteristic information stored in the visual characteristic storage means. Adjust the above recognition time.

 [0085] More specifically, even if the driver does not visually recognize the thing related to the route guidance information R for the visual recognition time period or longer, according to the visual characteristics stored in the visual characteristics storage unit, the driver can obtain a very small amount. If you are sure that you have traveled along the route guided by the route guidance information R if you have a track record, you can adjust the time to shorten the above recognition time. do it.

 [0086] In the above-described first to third route guidance operations, the re-guidance in steps S7, S17, and S27 is merely an example of the related information, and may be information relating to the route guidance information R (related information). . For example, it generates alert information that warns the driver, such as "Where you are looking at is wrong." And outputs it as a voice signal, or turns the image displayed on the display unit 13 to make a turn. You may comprise so that an intersection etc. may be blinked.

[0087] In addition, the voice output of the route guide information R before the start of the route guide process is larger than The sound may be output from the speaker 17 using a yume. Alternatively, a sound calling attention such as "Pee" may be output from the speaker 17 first, and then an audio signal based on the route guidance information scale may be output. You may comprise so that it may be.

[0088] In steps S6, S16, and S26, a signal is used as an object related to the route guidance information R or an object visually recognized by the driver. However, the present invention is not limited to this. In the case of an instruction to turn left, it may be a store at the intersection of a place where a right turn should be made.

 Further, in Steps S3, S13, and S23, when it is specified that the thing visually recognized by the driver is the display screen of the display unit 13 of the navigation device 1, if Step S4 to Step S6 (Step S14 to Step S16, or Step S24 to Step S26) may not be performed, and the process may proceed to Step S7 (Step S17 or Step S27) to perform re-guidance. Despite having provided the route guidance information R, the fact that the display screen of the navigation device 1 was visually recognized means that the driver understood the route guidance in the route information R! /, Na! / Because there are cases.

 According to the above-described embodiment, an object visually recognized by the driver is specified, and it is determined whether the visually recognized object is a force related to the information guided by the route guidance information. By doing so, when the driver does not correctly understand the route guidance information, it is possible to make the driver more surely recognize the route guidance by performing guidance again. In addition, by specifying an object visually recognized by the driver within the predetermined first predetermined time, even if the driver's line of sight is not determined, the driver can surely understand the route guidance information correctly. Can be determined.

Claims

The scope of the claims  [1] route guidance information presenting means for presenting route guidance information for performing route guidance to a driver driving a moving body;  A visual recognition position specifying means for detecting the driver's line of sight and specifying an object visually recognized by the driver;  Determining means for determining whether the thing visually recognized by the driver is a matter related to the presented route guidance information,  Related information presenting means for presenting related information on the route guidance information based on the determination;  An information presentation device, comprising:  [2] The information presentation device according to claim 1!  A number-of-visual-times comparing means for comparing the number of times the driver has visually recognized the thing related to the route guidance information with the number of times the driver has visually recognized the matter related to the route guide information within a first predetermined time; ,  The related information presenting means presents the related information when the number of times the driver has visually recognized the thing related to the route guidance information is equal to or greater than the number of times the driver has visually recognized the matter related to the route guidance information. An information presenting device characterized by performing. [3] The information presentation device according to claim 1!  A viewing time comparing means for comparing a total time during which the driver has visually recognized an object related to the route guidance information with a total time during which the driver has visually recognized an object related to the route guidance information within a first predetermined time; Have  The related information presenting means, when the total time during which the driver has visually recognized the thing related to the route guidance information is equal to or longer than the total time when the driver has visually recognized the matter related to the route guidance information, An information presenting device characterized by presenting. [4] The information presentation device according to claim 1!  A visual recognition time determining unit configured to determine whether the driver has visually recognized an object related to the route guidance information for a second predetermined time or more, The related information presenting means, If it is determined by the visual recognition time determining means that the driver has visually recognized the thing related to the route guidance information for the second predetermined time or more, the driver does not present the relevant information,  The information display, characterized in that the driver visually recognizes an object related to the route guidance information for the second predetermined time or more and determines that it is! / ヽ, and presents the related information. apparatus.  [5] The information presentation device according to claim 4,  Visual feature information storage means for accumulating and storing visual feature information indicating a relationship between the driver's visual recognition characteristics and the route guidance information;  A predetermined time adjusting means for adjusting the second predetermined time based on the visual recognition feature information;  An information presentation device, comprising: [6] The information presentation device according to any one of claims 1 to 5,  Map data acquisition means for acquiring map data selected based on the driver's instruction,  Moving body position information obtaining means for obtaining the moving body position information by specifying the position of the moving body;  An external image acquisition unit that acquires an external image by photographing a situation outside the moving body, and a distance acquisition unit that measures and acquires a distance between the moving body and an object outside the moving body,  The visual recognition position identification means detects the driver's line of sight based on the acquisition by the external image acquisition means and the distance acquisition means, and is based on the acquisition by the map data acquisition means and the moving body position information acquisition means! An information presentation device for identifying an object visually recognized by the driver. [7] The information presentation device according to any one of claims 1 to 6,  The route guidance information presenting means is audio output means for providing the driver with the route guidance information by voice, When performing the route guidance, the related information presenting means may be more suitable for the previous route guidance. An information presentation device characterized in that a voice output amount is large.  [8] A route guidance device mounted on a mobile object, comprising the information presentation device according to any one of claims 1 to 7. [9] computer  Presents route guidance information for performing route guidance to a driver who drives a moving body, detects a line of sight of the driver, specifies an object visually recognized by the driver,  It is determined whether the thing visually recognized by the driver is a matter related to the presented route guidance information,  An information presenting program for causing a function to present related information relating to the route guidance information based on the determination. [10] An information recording medium, wherein the information presentation program according to claim 9 is recorded so as to be readable by the computer. [11] a route guidance information presenting step for presenting route guidance information for performing route guidance to a driver driving a moving object;  A visual recognition position specifying step for detecting the driver's line of sight and specifying the thing visually recognized by the driver;  A determining step of determining whether the thing visually recognized by the driver is a matter related to the presented route guidance information;  A related information presenting step of presenting related information related to the route guidance information based on the determination;  An information presentation method comprising: