JP2009034223A - Thermal index measuring device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thermal index measuring device for performing appropriate prevention of heatstroke. <P>SOLUTION: The thermal index measuring device has: a temperature detecting means 2 for measuring air temperature; a humidity detection means 3 for measuring humidity; a calculating means 5 for calculating a thermal index from the measured air temperature and humidity; a content of notice storage means 20 stored with a content of notice corresponding to the thermal index and biological data to be data on a living body; a content of notice determining means 11 for determining a content of notice on the basis of the thermal index and the biological data; notifying means 8 and 9 for notifying determined contents of notice ; and a holding means 11 for holding each of the means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a thermal index measuring device.

  When various activities such as sports and mowing are performed under high temperature and humidity, there is a risk that the activist will suffer from heat stroke. As a device for preventing such a risk, Patent Documents 1 to 3 include a sensor that measures the temperature and relative humidity, and determines whether the measured temperature and relative humidity may cause heat stroke. However, when it is determined that there is a danger, a device is disclosed that warns an activist to that effect. In particular, the device disclosed in Patent Document 3 is a device that can be worn on the wrist of an activator.

  Further, in Patent Document 4, it is measured by a WBGT measuring device close to the location of an active person among WBGT (Wet-bulb Temperature Temperature) measuring devices installed at a plurality of predetermined locations in Japan. The WBGT value and the biological data such as the body temperature of the activist are obtained at the monitoring center, and the risk of the active person suffering from heat stroke is determined based on these data. In order to prevent heat stroke such as hydration and discontinuation of the activity, a system for notifying the activity person of a coping method to be taken by the activity person is disclosed.

JP 2003-344175 A JP 2003-50285 A JP 2006-345826 A JP-A-2005-334021

  However, in the devices disclosed in Patent Documents 1 to 3, although it is possible to inform the activist that the temperature and relative humidity are likely to cause heat stroke, the coping method to be taken by the activator , The activists need to judge themselves. Therefore, there is a possibility that an appropriate action cannot be taken while knowing the risk of heat stroke in an activist.

  In Patent Document 4, when the place where the environmental temperature is measured is far from the place where the activist is actually active, the measured WBGT value and the WBGT value around the activator are large. There may be a difference, and in such a case, there is a problem that appropriate information cannot be notified to the activist. For example, if the activist is in a boiler room, the measured WBGT value may be significantly different from the WBGT value around the activator, and appropriate information corresponding to the environment in which the activist is actually located. Cannot be notified to activists.

  Then, an object of this invention is to provide the heat | fever parameter | index measurement apparatus which can perform the appropriate prevention of heat stroke.

  In order to solve the above-mentioned problems, temperature detection means for measuring the temperature, humidity detection means for measuring the humidity, calculation means for calculating the heat index from the measured temperature and humidity, data about the heat index and the living body Notification content storage means for storing notification content corresponding to biometric data, notification content determination means for determining the notification content based on the heat index and the biometric data, and notification for notifying the determined notification content Means and holding means for holding each means are provided.

  By configuring the heat index measuring device in this way, the heat index measuring device can be easily placed at the location of the living body, and appropriate prevention of heat stroke corresponding to the environment where the living body is placed is performed. be able to.

  In another invention, in addition to the above-described invention, the notification content storage means is replaceable.

  By configuring the thermal index measuring device in this way, it is possible to instruct a more appropriate countermeasure according to various conditions.

  In another invention, in addition to the above-described invention, the calculation means calculates an average of the temperatures measured for a predetermined time or a predetermined number of times, and uses the average temperature for calculation of the heat index.

  By configuring the thermal index measuring device in this way, it is possible to prevent the thermal index from being calculated based on the measured temperature that has instantaneously increased, for example, sunlight hits the temperature detection means. . That is, the calculation accuracy of the heat index can be improved.

  In another invention, in addition to the above-described invention, the calculation means calculates an average of humidity measured for a predetermined time or a predetermined number of times, and uses the average humidity for calculation of a heat index.

  By configuring the heat index measuring device in this way, it is possible to prevent the heat index from being calculated based on the measured humidity that has instantaneously increased, for example, when water vapor hits the humidity detecting means. That is, the calculation accuracy of the heat index can be improved.

  In addition to the above-described invention, another invention includes a biological data measuring unit that measures biological data of a biological body as measured biological data, and the notification content storage unit supports the measured biological data in addition to the thermal index and the biological data. The notification content is stored, and the notification content determination means determines the notification content based on the measured biological data, the heat index, and the biological data.

  By configuring the thermal index measuring device in this way, it is possible to notify the living body and the surroundings of appropriate notification contents considering the biological data of the living body.

  In addition to the above-described invention, another invention includes a mounting means for mounting on a living body, and when the mounting means is mounted on the living body, temperature detection is performed on a side opposite to the side facing the body. Suppose that the detection part of a means and a humidity detection means is arrange | positioned.

  By configuring the thermal index measuring device in this way, the influence of the body temperature, sweat, etc. of the living body is reduced when measuring the temperature and relative humidity, so that the measurement accuracy of the temperature and relative humidity can be improved.

  Further, in another invention, in addition to the above-described invention, the biosensor is disposed on the side of the thermal index measuring device facing the body.

  By configuring the thermal index measuring device in this way, it is possible to accurately detect biological data of a living body.

  ADVANTAGE OF THE INVENTION According to this invention, the heat parameter | index measuring apparatus which can perform the appropriate prevention of heat stroke can be provided.

(Embodiment)
The heat index measuring device 1 according to the embodiment of the present invention has a function of measuring a heat index such as a heat index and a WBGT value and notifying a preventive measure against heat stroke in a living body according to the heat index. It is what you have. In the description of the present embodiment, the case where the thermal index measurement device 1 is used for a human being (biological person) will be described as an example. Therefore, this thermal index measuring device 1 is configured in a size and form that allows a user (actor) to wear and act like a wristwatch, for example. Therefore, the user can wear the heat index measuring device 1 on the arm and perform various activities such as various sports and mowing, and the user can take heat stroke prevention measures according to the heat index of the environment in which he is active. Can be easily known. Hereinafter, a specific configuration of the heat index measuring apparatus 1 will be described with reference to FIGS. 1 and 2.

  FIG. 1 is a circuit block diagram showing an electrical circuit configuration of the thermal index measuring device 1. FIG. 2 is an external view showing the configuration of the external appearance of the heat indicator measuring device 1, and FIGS. 2A, 2B, 2C, and 2D are respectively a plan view of the heat indicator measuring device 1, It is a bottom view, a left side view, and a front view.

  As shown in FIG. 1, the thermal index measuring apparatus 1 includes a temperature sensor 2 as a temperature detection unit, a humidity sensor 3 as a humidity detection unit, a temperature sensor 2 and a detection unit 4 of the humidity sensor 3, and a temperature sensor 2. And an arithmetic circuit 5 as arithmetic means for calculating a thermal index and a WBGT value based on an output signal from the humidity sensor 3, and a switch unit 6 for inputting various instructions and information to the thermal index measuring device 1. And a control IC 7 for controlling various operations of the thermal index measuring device 1, a liquid crystal display device 8 as a notification means, a piezoelectric buzzer 9 as a notification means, and a power source 10 composed of a lithium battery or the like. is doing.

  Further, as shown in FIG. 2, the heat index measuring apparatus 1 has a casing 11 as a holding unit, and the casing 11 is shown in FIG. 1 in addition to the temperature sensor 2 and the humidity sensor 3 described above. The constituent members of the thermal index measuring device 1 are held. The casing 11 is a flat rectangular parallelepiped as a whole, and band attaching portions 12 are provided at both ends in the longitudinal direction, and the heat index measuring device 1 is provided by a band 13 as an attaching means attached to the band attaching portion 12. Can be worn on the wrist. Note that the casing 11 is, for example, 4 cm long (longitudinal direction), 3 cm wide (short direction) 3 cm thick so that even if the user wears it on the wrist, the activity is not hindered. The size is 1 cm.

  Among the components shown in FIG. 1, the display unit 14 (see FIG. 2) of the liquid crystal display device 8, the switch unit 6, the temperature sensor 2, and the detection unit 4 of the humidity sensor 3 face the outside of the housing 11. It is incorporated in the housing 11. That is, the display unit 14 of the liquid crystal display device 8 is disposed so as to face the upper surface, which is one of the pair of wide surfaces in the flat direction of the housing 11. The detection unit 4 is disposed on the upper surface of the housing 11 between the periphery of the display unit 14 and the outer periphery of the housing 11. Further, on the pair of side surfaces 15R and 15L that are disposed along the flat direction of the casing 11 and along the longitudinal direction of the casing 11, four switches 6A, 6B, 6C, Two 6Ds are disposed on each of the side surfaces 15R and 15L. Switches 6A and 6B are disposed on the side surface 15R, and switches 6C and 6D are disposed on the side surface 15L.

  For example, a band gap temperature sensor is used as the temperature sensor 2. The humidity sensor 3 uses, for example, a capacitance type relative humidity sensor so as to detect the relative humidity as the humidity. In the present embodiment, the temperature sensor 2 and the humidity sensor 3 are integrated on a single chip, and the temperature and relative humidity of the air in contact with the detection unit 4 can be measured by one detection unit 4. Has been. When the user wears the thermal index measurement device 1 on the wrist, the display unit 14 faces upward (on the opposite side to the skin) so that the display unit 14 of the liquid crystal display device 8 can be seen. To be attached). Therefore, when the thermal index measuring device 1 is worn on the wrist, the detection unit 4 is arranged on the front side, that is, on the upper side with the thermal index measuring device 1 sandwiched between the human body. That is, the detection part 4 is arrange | positioned in the position which is hard to receive to the influence of a user's body temperature or sweat. Therefore, the temperature sensor 2 and the humidity sensor 3 can measure the temperature and the relative humidity in a state where the influence of moisture by the user's body temperature and sweat is small.

Signals related to the temperature and relative humidity output from the temperature sensor 2 and the humidity sensor 3 are amplified by the amplification circuits 16 and 17 and then input to the arithmetic circuit 5. The arithmetic circuit 5 calculates two heat indexes, an approximate value of a heat index and a WBGT value (hereinafter referred to as a WBGT approximate value), based on the detected temperature and relative humidity. The thermal index is a value calculated by the following calculation formula (1) proposed by the Australian Federal Bureau of Weights and Measures based on temperature and relative humidity, and is an index representing how hot a person feels.

Thermal index = Ta + 0.33 × E−0.70 × ws−4.00 (1)

E = (Rh / 100) × 6.105 × exp {17.27 × Ta / (237.7
+ Ta)}

Ta = temperature (℃)
Rh = relative humidity (%)
ws = wind speed (m / s where 10 m is the height. Note that the heat index measuring device 1 according to the present embodiment calculates 0 m / s)

On the other hand, the approximate value of WBGT is also calculated from the temperature and relative humidity based on the following calculation formula (2) proposed by the Australian Federal Metrology Bureau.

WBGT approximate value = 0.567 × Ta + 0.393 × E + 3.94 (2)

E = (Rh / 100) × 6.105 × exp {17.27 × Ta / (237.7
+ Ta)}

Ta = temperature (℃)
Rh = relative humidity (%)

The WBGT value is a value calculated by the following calculation formula (3) based on the air temperature (dry bulb temperature), the wet bulb temperature, and the black bulb temperature (radiant heat).

WBGT value = 0.7 × (wet bulb temperature) + 0.2 × (black bulb temperature) +0.1 (dry bulb temperature) (3)

  The WBGT value is an index for determining the degree of risk associated with behavior in an extremely hot environment. The calculation of the WBGT value requires three measurement values of the air temperature, the wet bulb temperature, and the black bulb temperature, and a means for measuring these three measurement values is required, resulting in a large measuring device. Therefore, the above-described calculation formula (2) has been proposed by the Federal Bureau of Weights and Measures, which can easily calculate a WBGT approximate value that approximates the WBGT value from two measured values of temperature and relative humidity. The approximate value of WBGT is a value that is not related to the temperature of the black sphere, and can be obtained from measured values that can be measured relatively easily such as the ambient temperature and relative humidity of the user. Therefore, when the WBGT approximate value is obtained as the thermal index as in the thermal index measuring apparatus 1 of the present embodiment, it is not necessary to provide a means for measuring the black sphere temperature, and the temperature sensor 2 and the relative humidity The WBGT approximate value can be obtained as a heat index with a simple configuration including the sensor 3.

  The control IC 7 includes an input port 18, a memory 19, a ROM 20 (Read Only Memory), a CPU 21 (Central Processing Unit), a RAM 22 (Random Access Memory), an output port 23, and the like. The temperature sensor 2 and the humidity sensor 3 are connected to the input port 18 via the arithmetic circuit 5, and the switches 6A to 6D are further connected. Further, the liquid crystal display device 8 is connected to the output port 23 via the display drive circuit 24, and the piezoelectric buzzer 9 is connected via the buzzer drive circuit 25.

  Signals from the switches 6A to 6D and signals related to the heat index (heat index and WBGT approximate value) output from the arithmetic circuit 5 are input to the input port 18, and information related to the heat index and input from the switches 6A to 6D The information is stored in the memory 19.

  The ROM 20 stores a table (1) shown in FIG. 3 and a table (2) shown in FIG. 4 as a data table (hereinafter referred to as a notification content data table), and the ROM 20 functions as a notification content storage means. Tables (1) and (2) stipulate the contents of notification for instructing the user about heat stroke prevention measures corresponding to the WBGT approximate value and the exercise level. Table (1) corresponds to a user with strong physical strength, and Table (2) corresponds to a user with weak physical strength. In this embodiment, in each table, the exercise levels are “slow exercise (maximum oxygen consumption 50 to 70%)”, “medium exercise (maximum oxygen consumption 50 to 90%)”, “violent exercise”. (Maximum oxygen consumption 75 to 100%) ”, and the WBGT approximate value as a degree of risk of heat stroke, 5 levels from 1 to 5 (hereinafter, this level is referred to as WBGT level). ). That is, in Tables (1) and (2), the notification content for instructing the user as a heatstroke prevention measure is defined according to the WBGT level and the exercise level. Therefore, by specifying the WBGT approximate value and the exercise level in the table (1) or the table (2), it is possible to specify a preventive measure against heat stroke corresponding to the designated WBGT approximate value and the exercise level.

  The thermal index measuring device 1 is configured to notify the user of heat stroke prevention measures by the liquid crystal display device 8 and the piezoelectric buzzer 9. Therefore, the notification contents include an instruction message to the user for display on the liquid crystal display device 8, a sound generation pattern of the piezoelectric buzzer 9 to be sounded in conjunction with the display of the instruction message, display of the instruction message and sound of the buzzer sound. And the length of time during which the instruction message is displayed and the buzzer is sounded.

  For example, in Table (1), when the exercise level is a moderate exercise and the WBGT approximate value is “1”, the notification content is liquid crystal of hydration (“Drink”, see FIG. 8B). A display on the display device 8 and a continuous buzzer sound generated by the piezoelectric buzzer 9 performed in conjunction with the display, and the display and the sound generation are performed simultaneously at a timing of 20 minutes for 20 seconds. It has become.

  Similarly, in Table (1), when the exercise level is a gentle exercise and the approximate value of WBGT is “3”, the notification content at this time is hydration performed for 20 seconds at a timing of every 20 minutes. In addition to the display on the liquid crystal display device 8 ("DLINK", see FIG. 8C) and the continuous buzzer sound generated by the piezoelectric buzzer 9 performed in conjunction with this display, timing every 30 minutes The display on the liquid crystal display device 8 of a break (for example, “REST-20”, see FIG. 8D) performed for 20 seconds, and the sound generation of a short buzzer sound in the piezoelectric buzzer 9 performed in conjunction with this display It has become.

  Furthermore, in Table (1), when the exercise level is a moderate exercise and the WBGT approximate value is “5”, the notification content at this time is the exercise stop (“DANGER”, see FIG. 8E). ) On the liquid crystal display device 8 and the continuous buzzer sound generated by the piezoelectric buzzer 9 performed in conjunction with this display.

  As described above, Table (1) corresponds to a user with strong physical strength, and Table (2) corresponds to a user with weak physical strength. In other words, it is preferable that a user with weak physical strength is allowed to take the same measures for preventing heat stroke with the same WBGT approximate value as compared with a user with strong physical strength. Therefore, the table (2) of the present embodiment is set to the approximate value of WBGT in which the countermeasures against heat stroke of the same content are low compared to the table (1). Specifically, for example, the preventive measure taken at the WBGT level “5” at the exercise level “slow exercise” in Table (1) is the preventive measure at the WBGT level “4” in Table (2). .

  The CPU 21 controls various operations of the thermal index measuring device 1 in addition to driving the liquid crystal display device 8 and the piezoelectric buzzer 9. The CPU 21 also functions as countermeasure content determination means. That is, the CPU 21 stores in the RAM 22 the WBGT approximate value stored in the memory 19, the information input by the switches 6A to 6D, and the notification content data table (table (1) or (2)) stored in the ROM 20. The notification content corresponding to the information read from the read WBGT and the switches 6A to 6D is determined from the notification content data table. In accordance with the determined notification content, the CPU 21 displays a predetermined instruction message on the liquid crystal display device 8 and causes the piezoelectric buzzer 9 to generate a buzzer sound having a predetermined sound generation pattern.

  Next, the usage method of the heat | fever parameter | index measuring apparatus 1 is demonstrated, referring FIG. 5 and FIG. FIG. 5 is a flowchart of the operation setting of the heat index measuring device 1, and FIG. 6 shows the contents of the display screen of the liquid crystal display device 8 in each step of the flowchart shown in FIG.

  The thermal index measurement device 1 of the present embodiment has a function as a wristwatch and a stopwatch with a configuration that omits the description, in addition to the functions as a thermal index measurement device such as the above-described thermal index measurement and notification of measures against heat stroke. It is comprised so that it may have a function as. The switch 6D is a switch for selecting the above three functions. Each time the switch 6D is pressed, the CPU 21 sets the operation mode of the thermal index measuring device 1 as a thermal index measuring mode that functions as a thermal index measuring device, a wristwatch mode that can be used as a wristwatch, and a stopwatch. Change to a timekeeping mode that can be used cyclically. Here, the operation when the heat index measurement mode is selected as the operation mode of the heat index measurement apparatus 1 and the heat index measurement apparatus 1 functions as the heat index measurement apparatus will be described.

  When the heat index measurement mode is selected by the switch 6D, the heat index measurement device 1 is in the initial state (step S10) when functioning as the heat index measurement device. In this initial state (step S10), the liquid crystal display device 8 displays an initial screen 26 shown in FIG. “SPORTS” in the display 27 on the initial screen 26 is a display indicating that the mode of the thermal index measuring device 1 is the thermal index measuring mode. The display 28 is a display indicating whether the table (1) or the table (2) is read into the RAM 22, and “HIGH” is displayed when the table (1) is read. When the table (2) is read, “LOW” is displayed on the display 28.

  The display 29 is a display that indicates which exercise level is specified to specify the preventive measure when the CPU 21 specifies the preventive measure against heat stroke based on the table (1) or the table (2). When the exercise level is “slow exercise”, the display shown in FIG. 7A is performed. When the exercise level is “medium exercise”, the display shown in FIG. 7B is performed. In the case of “violent exercise”, the display shown in FIG. 7C is performed. In the initial state (step S10), as a default operation, the CPU 21 reads the data of Table (1) into the RAM 22 and designates the exercise level as “slow exercise”. Accordingly, on the initial screen 26, as shown in FIG. 6A, “HIGH” is displayed on the display 28, and the display 29 of FIG. 7A is displayed on the display 29.

  When the thermal index measurement mode is selected by the switch 6D, the thermal index measuring device 1 starts measuring the WBGT approximate value and the thermal index. Then, the numerical value of the WGBT level in Table (1) corresponding to the measured WBGT approximate value is displayed as a display 30. That is, the CPU 21 determines the WGBT level of the table (1) corresponding to the measured WBGT approximate value based on the measured WBGT approximate value and the table (1) read into the RAM 22 by default, and this WGBT level. Is displayed as a display 30. This display 30 allows the user to know numerically the risk of suffering from heat stroke in the current situation. The measured heat index is displayed as a display 31. This display 31 allows the user to know the heat index. The display 32 is a timer display described later.

  Every time the switch 6A is pressed from the above-described initial state (step S10), the operation setting mode shown in steps S20, S30, S40, and S50 is sequentially shifted. Then, predetermined operation settings described later are performed in each operation setting mode.

  When the switch 6A is pressed once in the initial state (step S10), the table selection mode is selected to select which notification content data table of the table (1) or (2) is read into the RAM 22 (step S20). In the table selection mode (step S20), the liquid crystal display device 8 displays a table selection screen 33 shown in FIG. In this table selection mode (step S20), the notification content data table (tables (1) and (2)) to be read into the RAM 22 can be selected by the switch 6B. On the table selection screen 33, each time the switch 6B is pressed, the display 34 (“FIT / HIGT”) shown in FIG. 6B and the display 35 (“FIT / LOW”) shown in FIG. 8B alternate. Is displayed. When the display 34 is displayed, the notification content data table of the table (1) is read into the RAM 22, and when the display 35 is displayed, the notification content data of the table (2) is displayed in the RAM 22. The table is being read. As described above, Table (1) shows the contents of countermeasures for people with strong physical strength, and Table (2) shows the contents of countermeasures for people with weak physical strength. That is, the user presses the switch 6B and selects the notification content data table (tables (1) and (2)), thereby inputting user data indicating whether the user's physical strength is strong or weak. That is, the switch 6B functions as a biometric (user) data input means, and the user reads the notification content data table corresponding to either the table (1) or the table (2) into the RAM 22 according to his / her physical strength. Instructs the CPU 21.

  After selecting the notification content data table (table (1) or table (2)) (step S20), pressing the switch 6A once confirms the selection (step S20) and sets the exercise level. The setting mode (step S30) is entered. In this exercise level setting mode (step S30), the exercise level setting screen 36 shown in FIG. In the exercise level setting screen 36, each time the switch 6B is pressed, the display 37 (“FIT / HIGT / LIGHT”) and the display 38 (“FIT / HIG”) shown in FIGS. 6D, 6E, and 6F, respectively. HIGH / MIDIUM ") and display 39 (" FIT / HIGT / HARD ") are cyclically displayed. When the table (2) is selected as the notification content data table in step S20, the display 40 (“FIT” shown in FIGS. 6G, 6H, and 6I is displayed in the exercise level setting mode (step S30). / LOW / LIGHT "), display 41 (" FIT / LOW / MIDIUM "), and display 42 (" FIT / LOW / HARD ") are cyclically displayed. In this exercise level setting mode (step S30), by pressing the switch 6B as described above, the exercise level (“slow exercise”, “medium” in the notification content data table (tables (1) and (2)) is selected. "Exercise exercise", "Exercise exercise") can be selected. When the displays 37 and 40 are displayed, “slow movement” is selected. When the displays 38 and 41 are displayed, “medium movement” is selected, and the displays 39 and 42 are displayed. When displayed, “Intense Exercise” is selected. In this way, when the user presses the switch 6B and selects an exercise level ("gentle exercise", "medium exercise", "severe exercise"), the user is going to perform an exercise that he or she is about to perform or is currently performing The exercise level of the current exercise is input as user data. That is, the switch 6B functions as a living body (user) data input means, and the user inputs the exercise level of the exercise that he or she is going to perform from now on to the heat indicator measuring device 1 from the switch 6B.

  When the exercise level is set and then the switch 6A is pressed once, the exercise level selection (step S30) is confirmed and the timer time method setting mode (step S40) for setting the timer time method is entered. In the timer timing method setting mode (step S40), the timer timing method setting screen 43 shown in FIG. 6 (J) is displayed on the liquid crystal display device 8. Then, a time measured by a timer mechanism (not shown) is displayed. The timer timing method can be selected from a subtraction type (countdown) and an addition type (elapsed time counting). Each time the switch 6B is pressed, a display 44 ("COUNTDOWN") shown in FIG. Display 45 (“ELAPSED TIME”) shown in FIG. 6K is alternately displayed. When the display 44 is displayed, the subtraction mode is selected, and when the display 45 is displayed, the addition mode is selected. The timer timing method setting screen 43 displays a display 28 corresponding to the selection contents in the table selection mode (step S20) and a display 29 corresponding to the selection contents in the exercise level setting mode (step S30). .

  When the switch 6A is pressed once after setting the timer counting method described above, the timer timing method selection (step S40) is confirmed, and the thermal index measuring device 1 operates in steps S20 to S40. The process proceeds to a preventive measure notification mode (step S50) in which an operation for notifying a preventive measure against heat stroke is executed according to the setting.

  Here, for example, in step S20, the table (1) intended for a user having strong physical strength is selected, and in step S30, “slow exercise” is selected as the exercise level. Assuming that the addition formula is selected as the timekeeping method, the notification operation of the preventive measure for heat stroke of the heat index measuring apparatus 1 will be described. In the preventive measure notification mode (step S50), as shown in FIG. 8A, the preventive measure notification screen 47 having a display area 46 in which an instruction message corresponding to the content of the preventive measure is displayed on the liquid crystal display device 8. Is displayed.

  In the preventive measure notification mode (step S50), the CPU 21 determines which WBGT level in Table (1) corresponds to the measured WBGT approximate value, and performs notification according to the notification content at the WBGT level. For example, when the temperature measured by the temperature sensor 2 is 24 ° C. and the relative humidity measured by the humidity sensor 3 is 25%, the calculation unit 5 calculates the approximate WBGT value as about 20 ° C. The CPU 21 determines that the calculated WBGT level of the approximate WBGT value is “1” based on the table (1). Here, since the exercise level set in step S30 is “slow exercise”, the notification content when the WBGT level in the table (1) is “1” is displayed together with the hydration message display and this message display. Both the continuous single buzzer sounds are generated every 20 minutes for 20 seconds. That is, as shown in FIG. 8B, the CPU 21 displays a display 48 (“Drink”), which is a message for instructing the user to supply water, at the position of the display area 46 shown in FIG. This is repeated for 20 seconds every minute, and a continuous single buzzer sound is generated for 20 seconds every 20 minutes in accordance with the display timing and display time of the display 48.

  By viewing the display 48 displayed on the liquid crystal display device 8, the user can know that hydration is necessary as a heat stroke prevention measure. In addition, since the piezoelectric buzzer 9 is sounded in conjunction with the display 48, the user can know that the instruction message is displayed by the buzzer sound, and thus the oversight of the instruction message can be prevented. The CPU 21 is configured to stop the buzzer sound when both the switch 6A and the switch 6C are pressed. That is, until the user recognizes that the heat stroke countermeasure has been notified and presses the switch 6A and the switch 6C to stop the buzzer sound, the CPU 21 causes the piezoelectric buzzer 9 to continue sounding. In other words, the buzzer sound can be continued until the user recognizes that the preventive measure has been notified, and the user can be surely recognized the preventive measure notification. Note that a display 49 shown in FIG. 9 is displayed in the display area 46 until the display 48 is displayed. This display 49 is a display that repeatedly moves from left to right, and this display allows the user to know that the heat indicator measuring device 1 is operating in the preventive measure notification mode. In the display 50 which is a timer display, the time since the start of time measurement is displayed. The user can know the time until hydration from the display 50.

  For example, when the temperature measured by the temperature sensor 2 is 27 ° C. and the relative humidity measured by the humidity sensor 3 is 50%, the calculation unit 5 calculates the approximate value of WBGT as about 26 ° C. The CPU 21 determines that the calculated WBGT level of the approximate WBGT value is “3” based on the table (1). Here, as described above, since the exercise level set in step S30 is “slow exercise”, the notification content when the WBGT level in the table (1) is “3” includes the hydration message display and this message display. In addition to the continuous buzzer sound, which is performed in conjunction with the sound, the sound is generated every 20 minutes for 20 seconds, and both the break acquisition message display and the short buzzer sound generated in conjunction with this message display are both performed for 30 minutes. Every 20 seconds. That is, as shown in FIG. 8C, the CPU 21 displays a display 51 (“Drink”), which is a message for instructing the user to supply water, at the position of the display area 46 shown in FIG. While repeating for 20 seconds every minute, in addition to the display timing and display time of the display 51, the piezoelectric buzzer 9 is caused to generate a continuous single buzzer sound every 20 minutes for 20 seconds.

  Further, as shown in FIG. 8D, the CPU 21 displays a message 52 (“REST−”) instructing the user to take a break for a predetermined time at the position of the display area 46 shown in FIG. 20 ") is repeated every 30 minutes for 20 seconds, and a short buzzer sound is generated for 20 seconds every 20 minutes in accordance with the display timing and display time of the display 52. Note that “20” in the display 52 means the length of the break time, and here, “20” is displayed in the sense of 20 minutes. By displaying the break time in this way, the user can be prompted to take the displayed break time. Therefore, it is possible to prompt the user to take this necessary break time by displaying the break time as a break time necessary for preventing heat stroke. Although the break time is displayed as “20” here, an appropriate time is displayed as a break time necessary to prevent heat stroke.

  By viewing the display 51 and the display 52 displayed on the liquid crystal display device 8, the user knows that hydration is necessary as a countermeasure against heat stroke, and that it is necessary to take a break in addition to this. be able to. In addition, since the piezoelectric buzzer 9 is sounded together with the display 51 and the display 52, the user's instruction message can be prevented from being overlooked. Further, since the sound pattern of the buzzer sound is changed between the contents of the instruction message, that is, the display 51 (“DLINK”) and the display 52 (“REST-20”), the user can also prevent the contents of the preventive measures by the buzzer sound. Can know. The buzzer sound can be stopped by pressing both the switch 6A and the switch 6C.

  Further, for example, when the temperature measured by the temperature sensor 2 is 31 ° C. and the relative humidity measured by the humidity sensor 3 is 70%, the WBGT approximate value is calculated to be about 34 ° C. by the calculation means 5. The CPU 21 determines that the calculated WBGT level of the approximate WBGT value is “5” based on the table (1). Here, since the exercise level set in step S30 is “slow exercise”, the notification contents when the WBGT level is “5” in Table (1) are the exercise / work stop message and the continuous buzzer sound. It is to pronounce. As shown in FIG. 8E, the CPU 21 displays a display 53 (“DANGER”), which is a message instructing the user to stop exercise / activity, at the position of the display area 46 shown in FIG. Do. In addition to the display 53, the piezoelectric buzzer 9 generates a continuous buzzer sound. By viewing the display 53 displayed on the liquid crystal display device 8, the user can know that it is necessary to stop the exercise or work that is being carried out as a heat stroke prevention measure. Moreover, since the piezoelectric buzzer 9 is sounded in conjunction with the display 53, it is possible to prevent the user from overlooking the message. The display 53, which is an exercise / work stop message, and the sounding of the buzzer sound associated therewith are immediately performed when the WBGT level of the WBGT approximate value is determined to be “5”. Therefore, the user can immediately know that it is dangerous to continue exercise / work in the environment. Note that the buzzer sound at this time is set to a louder volume than the buzzer sound used when instructing hydration or a break, so that the user can be surely notified that the current situation is in a dangerous state. The display 53 and the continuous buzzer sound of the piezoelectric buzzer 9 are continuously generated until both the switch 6A and the switch 6C are pressed.

  As described above, in the heat indicator measurement device 1, the user selects an appropriate notification content data table (table (1) or table (2)) according to the physical strength of the user in step S20, and step S30. By selecting an exercise level that matches the level of exercise performed by the user, the user can be notified of appropriate preventive measures against heat stroke according to the measured WBGT approximate value.

  The calculation of the WBGT approximate value is performed based on an average temperature and an average relative humidity for a predetermined time, for example, 2 minutes. In this way, by calculating the WBGT approximate value based on the average temperature and the average relative humidity for a predetermined time, it is possible to notify a countermeasure corresponding to the actual environment (temperature, relative humidity) around the user. . On the other hand, if the notification content is determined based on the real-time WBGT approximate value, for example, when direct sunlight hits the detection unit 4 instantaneously and the detected temperature instantaneously increases, Although the actual temperature is not high, the WBGT approximate value is calculated at a high temperature. Also, for example, when working with food jars in a well-ventilated room, the location where the hood is working is high relative humidity with water vapor, but the relative humidity is not so high in other locations. It becomes. In such an environment, when the user spends only a little time working on the paddle and the other time is working in a place where the relative humidity is not high, the time for the user to work under high relative humidity (boil processing) The time spent on work is short, so there is little risk of getting heat stroke. However, if the notification content is judged based on the real-time WBGT approximate value, even in such a case, the WBGT approximate value is calculated on the basis of the measured relative humidity for only a short time engaged in the battering work. End up. As a result, there arises a problem that appropriate preventive measures are not notified to the user, such as a measure to stop exercise / work is notified where originally a preventive measure for hydration is sufficient. As described above, by calculating the WBGT approximate value based on the average temperature and the average relative humidity for a predetermined time, the occurrence of the above problem can be eliminated. The average temperature and the average relative humidity may be based on the measurement result of a predetermined time, or may be an average value of the temperature and the relative humidity measured a predetermined number of times at a predetermined time interval.

  When the user changes or the exercise level performed by the user changes, the operation setting is changed back to steps S20 and S30. By continuously pressing the switch 6D for 2 seconds, the thermal index measuring device 1 returns to the initial state (step S10) and can newly set the operation. When the switch 6D is pressed in the initial state (step S10), each time the switch 6D is pressed, the operation mode of the thermal index measurement device 1 is cyclically changed to the clock mode, the stopwatch mode, and the thermal index measurement mode.

  The contents of Tables (1) and (2), that is, the WBGT level, the exercise level, and the notification contents are examples, and these can be set as appropriate. For example, the heat stroke prevention described in the “Health Disease Prevention Guidebook during Sports Activities” issued on April 26, 1999 by the Japan Physical Education Association (revised on June 30, 2006) The content of notification for prevention of heat stroke may be determined corresponding to the WBGT level and the exercise level with reference to the exercise guidelines for the exercise.

  The thermal index measurement device 1 described above is an embodiment of the present invention. As another embodiment, for example, the thermal index measurement device 1 measures biological data such as a user's body temperature, pulse or blood pressure as measurement user data. Notification to prevent heat stroke from three viewpoints of WBGT approximate value, exercise level, and biological data, instead of the notification content data table of Tables (1) and (2). You may provide the notification content data table which can specify the content. By comprising in this way, the notification content for the heat stroke prevention based on the biometric data of the user output from a biometric sensor can be notified to a user. When the thermal index measurement device 1 includes a biosensor, the thermal index measurement device 1 is disposed on the bottom side of the thermal index measurement device 1, that is, on the surface facing the front side surface on which the detection unit 4 is disposed. When the apparatus 1 is worn on the wrist, the biosensor can be brought into close contact with the user's skin, and the biometric data of the user can be acquired accurately. In addition to measuring biometric data with a biometric sensor, the user may input the biometric data into the heat index measuring apparatus 1 himself / herself.

  Further, although the thermal index measuring device 1 has been described as a wristwatch-shaped configuration that is worn on the wrist, for example, a pendant configuration may be provided from the neck. In addition to the liquid crystal display device 8 and the piezoelectric buzzer 9, any one of the notification means may be provided. Moreover, it is good also as a structure which uses a vibration motor as a notification means, performs notification by vibration, or emits the content of notification as a voice instead of the sound of the piezoelectric buzzer 9.

  Instead of the ROM 20, a replaceable memory such as an SD memory card may be used as the notification content storage means for storing the notification content data table. In this case, a notification content data table of contents corresponding to the types of users such as athletes, elderly people, children, etc., work in the coal mine, work in the bathroom, marathon, soccer, etc. is stored. By preparing the prepared SD memory card in advance, a wide and appropriate notification of heat stroke prevention can be performed according to the type of user and the content of activity. Further, the ROM 20 may be a rewritable ROM, and a notification content data table or the like may be taken in from another device (for example, a personal computer) by wireless / wired communication.

  In addition, although the thermal index measuring apparatus 1 described above has been described as a configuration in which a living body is a human subject, the living body may be a pet animal such as a dog or a cat, or a livestock animal such as a horse, a pig, or a cow. Good. When such a pet animal or livestock animal is targeted, a notification content data table suitable for each living body is used.

It is a circuit block diagram which shows the electrical circuit structure of the heat parameter | index measuring apparatus which concerns on embodiment of this invention. It is an external view which shows the structure of the external appearance of the heat parameter | index measuring apparatus shown in FIG. 1, (A), (B), (C), (D) is the top view, bottom view, and left side of a heat parameter | index measuring apparatus, respectively. It is a surface view and a front view. It is a table | surface which shows the content of the notification content data table, and is a figure which shows the table corresponding to the user with strong physical strength. It is a table | surface which shows the content of the notification content data table, and is a figure which shows the table corresponding to the user with weak physical strength. It is a flowchart which shows the operation | movement setting of a heat parameter | index measuring apparatus. 6 shows the contents of the display screen of the liquid crystal display device in each step of the flowchart shown in FIG. It is a figure which shows the kind of display of the display 29 shown to FIG. 6 (A). It is a figure which shows the content of the display screen of a liquid crystal display device in preventive measure notification mode. It is a figure which shows the display until the display of FIG. 8 (B) is carried out on the liquid crystal display device of the heat | fever parameter | index measuring apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Thermal index measuring device 2 ... Temperature sensor (temperature detection means)
3 ... Humidity sensor (humidity detection means)
5 ... Calculation means 6B ... Switch (user data input means)
8 ... Liquid crystal display device (notification means)
9 ... Piezoelectric buzzer (notification means)
11: Housing (holding means)
13 ... Band (mounting means)
20 ... ROM (notification content storage means)
21 ... CPU (notification content determination means)

In order to solve the above-mentioned problems, a temperature detection unit that measures the temperature, a humidity detection unit that measures humidity, a calculation unit that calculates a heat index from the measured temperature and humidity, and a user who is data about a living body Notification based on user data input means for inputting data, notification content storage means for storing notification contents indicating heat stroke prevention measures corresponding to the heat index and user data, and the heat index and user data Suppose that it has a notification content determination means for determining the content, a notification means for notifying the determined notification content, and a holding means for holding each means.
more than

  In order to solve the above-mentioned problems, a thermal index measuring device includes a temperature detection unit that measures temperature, a humidity detection unit that measures humidity, a calculation unit that calculates a thermal index from the measured temperature and humidity, and a living body. User data input means for inputting user data that is data about, notification content storage means for storing notification contents indicating a heat stroke prevention measure corresponding to the heat index and user data, heat index and user data The notification content determination means for determining the notification content, the notification means for notifying the determined notification content, and the holding means for holding each means, the user data is data relating to the level of exercise level and strength The notification content includes an instruction message, a sound pattern of a buzzer sound that is sounded along with the instruction message, a display of the instruction message, and And that it is the timing of the pronunciation of Heather sound.

The ROM 20 stores a table (1) shown in FIG. 3 and a table (2) shown in FIG. 4 as a data table (hereinafter referred to as a notification content data table), and the ROM 20 functions as a notification content storage means. In Tables (1) and (2), notification contents for instructing the user to take preventive measures for heat stroke corresponding to the approximate value of WBGT and the exercise level are defined. Table (1) corresponds to a user with strong physical strength, and Table (2) corresponds to a user with weak physical strength. In this embodiment, in each table, the exercise levels are “slow exercise (maximum oxygen consumption 50 to 70%)”, “medium exercise (maximum oxygen consumption 50 to 90%)”, “violent exercise”. (Maximum oxygen consumption 75 to 100%) ”, and the WBGT approximate value as a degree of risk of heat stroke, 5 levels from 1 to 5 (hereinafter, this level is referred to as WBGT level). ). That is, in Tables (1) and (2), the notification content for instructing the user as a heat stroke prevention measure is defined according to the WBGT level and the exercise level. Therefore, by specifying the WBGT approximate value and the exercise level in the table (1) or the table (2), it is possible to specify a preventive measure against heat stroke corresponding to the designated WBGT approximate value and the exercise level.

The heat index measuring device 1 is configured to notify the user of heat stroke prevention measures by the liquid crystal display device 8 and the piezoelectric buzzer 9. Therefore, the notification contents include an instruction message to the user for display on the liquid crystal display device 8, a sound generation pattern of the piezoelectric buzzer 9 to be sounded in conjunction with the display of the instruction message, display of the instruction message and sound of the buzzer sound. And the length of time during which the instruction message is displayed and the buzzer is sounded.

As described above, Table (1) corresponds to a user with strong physical strength, and Table (2) corresponds to a user with weak physical strength. In other words, it is preferable that a user with weak physical strength is allowed to take a heat stroke prevention measure of the same content with a lower WBGT approximate value than a user with strong physical strength. Therefore, the table (2) of the present embodiment is set to the approximate value of WBGT, which is lower in the preventive measures against heat stroke with the same content as compared with the table (1). Specifically, for example, the preventive measures taken at the WBGT level “5” at the exercise level “slow exercise” in Table (1) are the preventive measures at the WBGT level “4” in Table (2). .

The heat index measurement device 1 of the present embodiment functions as a wristwatch and a stopwatch with a configuration that omits the description, in addition to the functions as a heat index measurement device such as the above-described heat index measurement and notification of heat stroke prevention measures. It is comprised so that it may have the function of. The switch 6D is a switch for selecting the above three functions. Each time the switch 6D is pressed, the CPU 21 sets the operation mode of the thermal index measuring device 1 as a thermal index measuring mode that functions as a thermal index measuring device, a wristwatch mode that can be used as a wristwatch, and a stopwatch. Change to a timekeeping mode that can be used cyclically. Here, the operation when the heat index measurement mode is selected as the operation mode of the heat index measurement apparatus 1 and the heat index measurement apparatus 1 functions as the heat index measurement apparatus will be described.

By viewing the display 48 displayed on the liquid crystal display device 8, the user can know that hydration is necessary as a heat stroke prevention measure. In addition, since the piezoelectric buzzer 9 is sounded in conjunction with the display 48, the user can know that the instruction message is displayed by the buzzer sound, and thus the oversight of the instruction message can be prevented. The CPU 21 is configured to stop the buzzer sound when both the switch 6A and the switch 6C are pressed. That is, until the user recognizes that the heat stroke countermeasure has been notified and presses the switch 6A and the switch 6C to stop the buzzer sound, the CPU 21 causes the piezoelectric buzzer 9 to continue sounding. In other words, the buzzer sound can be continued until the user recognizes that the preventive measure has been notified, and the user can be surely recognized the preventive measure notification. Note that a display 49 shown in FIG. 9 is displayed in the display area 46 until the display 48 is displayed. This display 49 is a display that repeatedly moves from left to right, and this display allows the user to know that the heat indicator measuring device 1 is operating in the preventive measure notification mode. In the display 50 which is a timer display, the time since the start of time measurement is displayed. The user can know the time until hydration from the display 50.

By seeing the display 51 and the display 52 displayed on the liquid crystal display device 8, the user knows that hydration is necessary as a heat stroke prevention measure and that it is necessary to take a break in addition to this. Can do. In addition, since the piezoelectric buzzer 9 is sounded together with the display 51 and the display 52, the user's instruction message can be prevented from being overlooked. Further, since the sound pattern of the buzzer sound is changed between the contents of the instruction message, that is, the display 51 (“DLINK”) and the display 52 (“REST-20”), the user can also prevent the contents of the preventive measures by the buzzer sound Can know. The buzzer sound can be stopped by pressing both the switch 6A and the switch 6C.

Further, for example, when the temperature measured by the temperature sensor 2 is 31 ° C. and the relative humidity measured by the humidity sensor 3 is 70%, the WBGT approximate value is calculated to be about 34 ° C. by the calculation means 5. The CPU 21 determines that the calculated WBGT level of the approximate WBGT value is “5” based on the table (1). Here, since the exercise level set in step S30 is “slow exercise”, the notification contents when the WBGT level is “5” in Table (1) are the exercise / work stop message and the continuous buzzer sound. It is to pronounce. As shown in FIG. 8E, the CPU 21 displays a display 53 (“DANGER”), which is a message instructing the user to stop exercise / activity, at the position of the display area 46 shown in FIG. Do. In addition to the display 53, the piezoelectric buzzer 9 generates a continuous buzzer sound. By viewing the display 53 displayed on the liquid crystal display device 8, the user can know that it is necessary to stop the exercise or work being performed as a heat stroke prevention measure. Moreover, since the piezoelectric buzzer 9 is sounded in conjunction with the display 53, it is possible to prevent the user from overlooking the message. The display 53, which is an exercise / work stop message, and the sounding of the buzzer sound associated therewith are immediately performed when the WBGT level of the WBGT approximate value is determined to be “5”. Therefore, the user can immediately know that it is dangerous to continue exercise / work in the environment. Note that the buzzer sound at this time is set to a louder volume than the buzzer sound used when instructing hydration or a break, so that the user can be surely notified that the current situation is in a dangerous state. The display 53 and the continuous buzzer sound of the piezoelectric buzzer 9 are continuously generated until both the switch 6A and the switch 6C are pressed.
more than

Claims (7)

Temperature detection means for measuring the temperature;
Humidity detection means for measuring humidity;
A computing means for computing a heat index from the measured temperature and humidity;
Notification content storage means for storing notification content corresponding to the heat index and biological data that is data about the biological body,
Notification content determining means for determining the notification content based on the heat index and the biological data;
A notification means for notifying the determined notification content;
Holding means for holding each of the above means;
A thermal index measuring device comprising:   The thermal index measuring apparatus according to claim 1, wherein the notification content storage unit is replaceable.   The heat index measuring apparatus according to claim 1 or 2, wherein the calculating means calculates an average of the temperatures measured for a predetermined time or a predetermined number of times, and uses the average temperature for calculating the heat index.   The heat according to any one of claims 1 to 3, wherein the calculation means calculates an average of humidity measured for a predetermined time or a predetermined number of times, and uses the average humidity for calculation of a heat index. Indicator measuring device. Comprising biological data measuring means for measuring the biological data of the living body as measured biological data;
The notification content storage means stores notification content corresponding to the measurement biological data in addition to the thermal index and the biological data,
The notification content determination means determines the notification content based on the measurement biological data, the thermal index, and the biological data.
The thermal index measuring device according to any one of claims 1 to 4, wherein A mounting means for mounting on the body of the living body,
The detection unit of the temperature detection unit and the humidity detection unit is disposed on a side opposite to a side facing the body when mounted on the body of the living body by the mounting unit. The thermal index measuring device according to any one of 1 to 5.   The thermal index measuring device according to claim 6, wherein the biological sensor is disposed on a side of the living body facing the body.

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