WO2021172225A1

WO2021172225A1 - Program, system, measurement device, and method

Info

Publication number: WO2021172225A1
Application number: PCT/JP2021/006462
Authority: WO
Inventors: 茂木　孝之; 松田　勲
Original assignee: 太陽誘電株式会社
Priority date: 2020-02-27
Filing date: 2021-02-19
Publication date: 2021-09-02

Abstract

A program causes a computer to function as a heatstroke prediction device having: a biological information acquisition unit that acquires biological information including information that is the pulse and/or respiratory rate of a user; an environment information acquisition unit that acquires environment information; an increase amount calculation unit that calculates, on the basis of the biological information, the increase amount in the pulse when the biological information was acquired compared with the normal pulse of the user, and/or the increase amount of the respiration rate when the biological information was acquired compared with the normal respiration rate of the user; a heat index calculation unit that calculates a heat index indicating the degree of occurrence of heatstroke on the basis of the environment information; and a processing unit that determines that a countermeasure process for heatstroke is to be executed, on the basis that the increase rate in the pulse and/or respiration rate is greater than or equal to a threshold value and the heat index is greater than or equal to a threshold value.

Description

Programs, systems, measuring devices, and methods

The present invention relates to programs, systems, measuring devices, and methods.

Recently, the summer in Japan has become hot and humid, and the number of cases of poor physical condition due to heat stroke is increasing. In order to predict the risk of developing heat stroke, there is a technique of determining whether or not the pulse rate exceeds a general upper limit value and using a heat index based on the wet-bulb globe temperature (WBGT).

Japanese Patent No. 6237023 Japanese Patent No. 6382433

However, even if the heat index is used to predict the risk of developing heat stroke based on the surrounding environment of a person, there are individual differences in whether or not heat stroke actually develops, and the pulse rate is general. It is difficult to predict the onset of heat stroke with high accuracy only based on the upper limit value and the heat index by WBGT or the like.

Therefore, the present invention has been made in view of the above circumstances, and an object of the present invention is to obtain a program, a system, a measuring device, and a method capable of predicting the onset of heat stroke with high accuracy.

In order to solve the above-mentioned problems and achieve the object, a program according to one aspect of the present invention causes a computer to acquire biometric information including at least one of the user's pulse rate and respiratory rate. Based on the biometric information, the acquisition unit, the environmental information acquisition unit for acquiring the environmental information, the amount of increase in the respiratory rate when the biometric information is acquired from the normal pulse rate of the user, and the biometric information. A heat index indicating the degree of heat stroke based on the increase amount calculation unit that calculates at least one of the increase amounts of the respiratory rate from the user's normal respiratory rate at the time of acquisition and the environmental information. Based on the heat index calculation unit that calculates It functions as a heat stroke predictor having a processing unit that determines to execute a heat stroke response process.

According to the present invention, there is an effect that the onset of heat stroke can be predicted with high accuracy.

FIG. 1 is a schematic diagram showing an example of the configuration of the heat stroke prediction system of the first embodiment. FIG. 2 is a block diagram showing an example of the hardware configuration of the heat stroke prediction system of the first embodiment. FIG. 3 is a flow chart showing an example of a processing procedure in the heat stroke prediction device according to the first embodiment. FIG. 4 is a flow chart showing an example of a processing procedure in the heat stroke prediction device according to the second embodiment.

Hereinafter, embodiments 1 and 2 of the present invention will be described with reference to the drawings. In the second embodiment, the same matters as those described in the first embodiment will be omitted as appropriate. Moreover, the present invention is not limited by these embodiments.

[Embodiment 1]
Hereinafter, the first embodiment will be described in detail with reference to the drawings.

(Structure example of heat stroke prediction system)
FIG. 1 is a schematic view showing an example of the configuration of the heat stroke prediction system 10 of the first embodiment. As shown in FIG. 1, the heat stroke prediction system 10 includes measuring devices 100a and 100b and a heat stroke prediction device 200.

The measuring device 100a includes an air pad 41, a temperature / humidity sensor 42, a hose 43, a piezoelectric sensor 44, and an amplifier 45.

The air pad 41 is arranged on a rug 40 such as a bed mattress and a futon mattress, and air is sealed inside the air pad 41. As a result, the air pad 41 acts to receive vibrations associated with at least one of the user M's pulse and respiration by coming into contact with the back of the user M lying on the rug 40. In this way, the air pad 41 extends from the heat stroke prevention device 200 to the user M side to be measured, and searches for a physical quantity from the living body such as vibration by the user M, that is, receives the physical quantity, for example, and receives heat stroke. This is an example of an exploration tool for transmitting to the preventive device 200.

The piezoelectric sensor 44 is connected to the air pad 41 through a hose 43 or the like. When the air pad 41 receives the vibration, air is sent from the air pad 41 due to the pressure change corresponding to the vibration received by the air pad 41, and the air is sent to the piezoelectric sensor 44 through the hose 43. The piezoelectric sensor 44 has a piezoelectric body, and when the piezoelectric body receives air, the piezoelectric body receives a pressure change and the piezoelectric body bends to detect it as a voltage change. In this way, the vibration associated with at least one of the pulse and respiration of the user M can be detected.

The amplifier 45 amplifies or attenuates the voltage converted by the piezoelectric sensor 44 as needed.

These air pads 41, hose 43, piezoelectric sensor 44, and amplifier 45 are configured as biosensors that measure biometric information including at least one of user M's pulse rate and respiratory rate information.

The temperature / humidity sensor 42 is installed in, for example, the rug 40 on which the air pad 41 is arranged. However, if the temperature and humidity of the ambient environment of the user M can be detected, the temperature / humidity sensor 42 may be arranged in the room where the floor covering 40 is placed or in the heat stroke measurement kit described later.

The temperature / humidity sensor 42 is an example of an environment sensor that measures environmental information regarding the temperature and humidity of the ambient environment of the user M. The environment sensor may include a radiant heat sensor (not shown) in addition to the temperature / humidity sensor 42. Environmental information includes temperature, humidity, and amount of heat radiation.

The measuring device 100b includes an air pad 51, a temperature / humidity sensor 52, a hose 53, a piezoelectric sensor 54, and an amplifier 55.

The air pad 51 is arranged, for example, in the seat of the chair 50, and air is sealed inside the air pad 51. As a result, the air pad 51 acts to receive vibrations associated with at least one of the user's pulse and respiration by coming into contact with the thigh of the user sitting on the chair 50. In this way, the air pad 51 extends from the heat stroke prevention device 200 to the user side to be measured, and searches for a physical quantity from the living body such as vibration by the user, that is, receives the physical quantity, for example, and receives the physical quantity to prevent the heat stroke. This is an example of an exploration tool for transmitting to 200.

The air pad 51 can be arranged on various types of seats such as a sitting chair, a sofa, and a bench, in addition to the chair 50, as long as it is for sitting.

The piezoelectric sensor 54 is connected to the air pad 51 through a hose 53 or the like. When the air pad 51 receives the vibration, air is sent from the air pad 51 due to the pressure change corresponding to the vibration received by the air pad 51, and the air is sent to the piezoelectric sensor 54 through the hose 53. The piezoelectric sensor 54 has a piezoelectric body, and when the piezoelectric body receives air, the piezoelectric body receives a pressure change and the piezoelectric body bends to detect it as a voltage change. In this way, vibrations associated with at least one of the user's pulse and respiration can be detected.

The amplifier 55 amplifies or attenuates the voltage converted by the piezoelectric sensor 54 as needed.

These air pads 51, hose 53, piezoelectric sensor 54, and amplifier 55 are configured as biosensors that measure biometric information including at least one of the user's pulse rate and respiratory rate.

The temperature / humidity sensor 52 is installed, for example, in a room or the like where a chair 50 on which an air pad 51 is arranged is placed. When the chair 50 is placed outdoors such as on a balcony or in a garden, the temperature / humidity sensor 52 is installed in the vicinity thereof. If the temperature and humidity of the user's ambient environment can be detected, the temperature / humidity sensor 52 may be arranged in a place other than these, for example, in a heat stroke measurement kit described later.

The temperature / humidity sensor 52 is configured as an environment sensor that measures environmental information regarding the temperature and humidity of the user's ambient environment. The environment sensor may include a radiant heat sensor (not shown). Therefore, the environmental information may include temperature, humidity, and amount of heat radiation.

The heat stroke prediction device 200 is configured as a computer equipped with a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, which will be described later. When the CPU executes a heat stroke prediction program described later, the processing unit 210, the biological information acquisition unit 211x, the increase amount calculation unit 212x, the environmental information acquisition unit 211y, the heat index calculation unit 212y, and the like shown in FIG. Realize the function. In addition, the CPU controls the above functions and the entire heat stroke prediction device 200 such as the storage unit 213, the display unit 230, and the ringing unit 231.

The biometric information acquisition unit 211x acquires biometric information such as the user's pulse rate and respiratory rate from the biosensors including the above-mentioned

air pads

41, 51 and piezoelectric sensors 44, 54 and the like.

The increase amount calculation unit 212x calculates at least one of the user's pulse rate and respiratory rate based on the biological information. The increase amount calculation unit 212x stores these calculated numerical values in the storage unit 213. In addition, the increase amount calculation unit 212x calculates at least one of the increase amount of the pulse rate and the increase amount of the respiratory rate of the user.

The amount of increase in the pulse rate is a value indicating how much the current user's pulse rate included in the biometric information acquired from the biosensor is increased from the user's normal pulse rate. The respiratory rate increase is a value indicating how much the current user's respiratory rate included in the biological information acquired from the biosensor is increased from the user's normal respiratory rate.

The user's normal pulse rate and respiratory rate are extracted from the user's pulse rate and respiratory rate calculated so far by the increase amount calculation unit 212x. As an example, among the user's pulse rate and respiratory rate calculated so far by the increase amount calculation unit 212x, the pulse rate and respiratory rate during sleep, which are likely to maintain a resting state, are calculated by the user's normal pulse rate and respiratory rate. Is conceivable. Alternatively, the user's normal pulse rate and respiratory rate may be used as the pulse rate and respiratory rate at the start of measurement at that time.

The environmental information acquisition unit 211y acquires environmental information in the user's surrounding environment from the above-mentioned temperature /

humidity sensors

42, 52 and the like.

The heat index calculation unit 212y calculates the heat index based on the environmental information. The heat index is an index indicating the degree of occurrence of heat stroke in the user's surrounding environment, and may be, for example, a wet-bulb globe temperature (WBGT: Wet Bulb Globe Temperature) or the like.

According to the heat stroke prevention information site of the Ministry of the Environment, the black bulb temperature Tgt is measured by a thermometer placed inside a black copper plate bulb, and the wet bulb temperature Tnwb is measured by a thermometer wrapped with moistened gauze around the temperature sensitive part. WBGT can be obtained by measuring the dry-bulb temperature Tndb using a normal thermometer and applying these numerical values to any of the following two equations.

Outdoor: WBGT (° C) = 0.7 ・ Tnwb + 0.2 ・ Tgt + 0.1 ・ Tndb
Indoor: WBGT (° C) = 0.7 ・ Tnwb + 0.3 ・ Tgt

That is, WBGT expresses heat by three factors: humidity, temperature, and intensity of sunlight.

However, the WBGT can also be estimated from the temperature and humidity data measured by the temperature and

humidity sensors

42 and 52 described above. When obtaining the WBGT outdoors, it is desirable to use the amount of heat radiation measured by the heat radiation sensor in addition to the temperature and humidity data.

The heat index calculation unit 212y may calculate another heat index different from the WBGT as long as it indicates the degree of heat stroke. The heat index calculation unit 212y stores the calculated heat index in the storage unit 213.

The processing unit 210 determines whether or not to perform a heat stroke response process based on the amount of increase in pulse rate, respiratory rate, etc., and the heat index. Specifically, the processing unit 210 determines whether or not the heat index is equal to or higher than the threshold value. In addition, the processing unit 210 determines whether or not at least one of the increase in pulse rate and respiratory rate exceeds the threshold value. Then, the processing unit 210 decides to execute the heat stroke response processing when both the value of the heat index and the value of the increase amount of at least one of them are equal to or more than the threshold value.

The processing unit 210 determines, for example, to display a warning on the display unit 230 as a response process for heat stroke, and instructs the display unit 230 to display the warning. Further, the processing unit 210 determines, for example, to issue an alarm to the ringing unit 231 as a response process for heat stroke, and instructs the ringing unit 231 to issue an alarm.

The display unit 230 displays a warning based on an instruction from the processing unit 210. The warning includes, for example, various information such as that the user is in a state of being prone to heat stroke and the content that urges the user to take some measures.

The display unit 230 is the detection result by various sensors acquired by the biological information acquisition unit 211x and the environmental information acquisition unit 211y, the increase amount of the user's pulse rate and respiratory rate calculated by the increase amount calculation unit 212x, and the heat index calculation unit. It may be possible to display the heat index or the like calculated by 212y.

The ringing unit 231 issues an alarm based on an instruction from the processing unit 210. The alarm issued by the ringing unit 231 may be a voice warning, an alarm sound, or the like. The voice warning can include, for example, various information such as the user being in a state of being prone to heat stroke and the content urging the user to take some measures.

The ringing unit 231 may be able to issue various messages to the user as well as an alarm when the risk of developing heat stroke increases.

The storage unit 213 stores various data such as the pulse rate and the respiratory rate calculated by the increase amount calculation unit 212x so far, and the heat index calculated by the heat index calculation unit 212y so far. In this way, the storage unit 213 stores data continuously monitored from the user and the user's surrounding environment. In addition, the storage unit 213 stores a threshold value for an increase amount such as a pulse rate and a respiratory rate, a threshold value for a heat index, and the like.

The threshold value for the heat index can be determined, for example, based on various guidelines posted on the heat stroke prevention information site of the Ministry of the Environment. Among the various guidelines provided by the Ministry of the Environment, for example, the "Guidelines for Daily Life" provide the following guidelines regarding the relationship between WBGT and heat stroke.

・ WBGT less than 25 ℃ (Caution)
Estimated daily activities to be aware of: Dangers caused by strong living activities Precautions: Generally, there is little risk, but there is a risk of occurring during strenuous exercise or hard work.

・ WBGT 25 ℃ or more and less than 28 ℃ (warning)
Estimated daily activities to be aware of: Dangers that occur in moderate or higher daily activities Precautions: Take sufficient rest regularly when exercising or doing strenuous work.

・ WBGT 28 ℃ or more and less than 31 ℃ (strict caution)
Estimated daily activities to be aware of: Dangers that occur in all daily activities Precautions: Avoid the hot sun when going out, and be careful of the rise in room temperature indoors.

・ WBGT 31 ℃ or higher (dangerous)
Estimated daily activities to be aware of: Dangers that occur in all daily activities Precautions: In elderly people, there is a high risk that they will occur even in a resting state. Avoid going out as much as possible and move to a cool room.

Based on such a guideline, for example, WBGT can be used as the heat index, and the above threshold value of the heat index can be set to, for example, 28 ° C.

The threshold value for the amount of increase in pulse rate can be, for example, 30 times / minute. The threshold value for the amount of increase in respiratory rate can be, for example, 15 times / minute.

The configuration of the heat stroke prediction system 10 shown above is merely an example, and the number of measuring devices 100a and 100b and the heat stroke prediction device 200 included in the heat stroke prediction system 10 is arbitrary. For example, the heat stroke prediction system may include one measuring device and one heat stroke prediction device. Further, for example, the heat stroke prediction system may be provided with three or more measuring devices, or may be provided with a plurality of heat stroke prediction devices corresponding to each measuring device.

(Hardware configuration example of heat stroke prediction system)
Next, a hardware configuration example of the heat stroke prediction system 10 of the first embodiment will be described with reference to FIG. FIG. 2 is a block diagram showing an example of the hardware configuration of the heat stroke prediction system 10 of the first embodiment.

As shown in FIG. 2, the heat stroke prediction system 10 includes a heat stroke measurement kit 20,

air pads

41, 51, and temperature /

humidity sensors

42, 52 as hardware configurations.

The heat stroke measurement kit 20 has a configuration in which a set of equipment such as a heat stroke prevention device 200 configured as a computer, piezoelectric sensors 44 and 54, and amplifiers 45 and 55 are integrated in one housing. This facilitates installation in the surrounding environment of the user to be measured, such as indoors.

The heat stroke measurement kit 20 includes a CPU 10, a ROM 14, and a RAM 15. As a result, the CPU 10 realizes the above-mentioned various functions by executing the heat stroke prediction program stored in, for example, the ROM 14 or the like with the RAM 15 as the work area.

Specifically, the program running on the CPU 10 realizes the above-mentioned increase amount calculation unit 212x, heat index calculation unit 212y, and processing unit 210.

The heat stroke measurement kit 20 is connected to the sensor interface (I / F: Interface) 11, the amplifiers 45 and 55 connected to the sensor I / F 11, and the amplifiers 45 and 55, respectively, and air is sent from the

air pads

41 and 51. The piezoelectric sensors 44 and 54 are provided.

The sensor I / F 11 functions as the above-mentioned biometric information acquisition unit 211x and environmental information acquisition unit 211y under the control of the CPU 10. Further, the sensor I / F 11 includes, for example, an analog / digital (A / D: Analog to Digital) converter 11a, and converts analog voltages from the piezoelectric sensors 44, 54 and amplifiers 45, 55 into digital signals.

The heat stroke measurement kit 20 includes a display 31 and an alarm 32.

The display 31 functions as the display unit 230 described above under the control of the CPU 10. The alarm 32 functions as the above-mentioned ringing unit 231 under the control of the CPU 10.

The heat stroke measurement kit 20 includes an auxiliary storage device 13. The auxiliary storage device 13 functions as the above-mentioned storage unit 213 under the control of the CPU 10.

The CPU 10, ROM 14, RAM 15, sensor I / F 11, and auxiliary storage device 13 are connected to, for example, an internal bus, and are configured to be able to exchange various information and signals with each other.

The display 31, the alarm 32, the auxiliary storage device 13, and the like may be externally attached as external devices of the heat stroke measurement kit 20.

On the other hand, if the temperature and humidity of the user's ambient environment can be detected, such as when the heat stroke measurement kit 20 is close to the installation position of the

air pads

41, 51, etc., the temperature /

humidity sensors

42, 52, etc. May be built into the heat stroke measurement kit 20.

Further, as described above, the heat stroke measurement kit 20 may include a set of piezoelectric sensors and an amplifier, and may be connected to a set of air pads and a temperature / humidity sensor. That is, the above-mentioned measuring device and the heat stroke prediction device may have a one-to-one correspondence.

(Processing example of heat stroke prediction device)
Next, a processing example in the heat stroke prediction device 200 of the first embodiment will be described with reference to FIG. FIG. 3 is a flow chart showing an example of a processing procedure in the heat stroke prediction device 200 according to the first embodiment.

As shown in FIG. 3, the environmental information acquisition unit 211y of the heat stroke prediction device 200 acquires environmental information such as temperature / humidity data from the temperature /

humidity sensors

42, 52 and the like (step S101). The heat index calculation unit 212y calculates a heat index such as WBGT based on the environmental information (step S102).

The processing unit 210 determines whether or not the heat index is equal to or higher than the threshold value (step S103). If the heat index is less than the threshold value (step S103: No), the process returns to step S101. If the heat index is equal to or higher than the threshold value (step S103: Yes), the processing unit 210 proceeds to the next step S104.

The biometric information acquisition unit 211x acquires biometric information such as the user's pulse rate and respiratory rate from the biosensors including the piezoelectric sensors 44 and 54 (step S104). The increase amount calculation unit 212x calculates at least one of the increase amount of the pulse rate and the increase amount of the respiratory rate based on the biological information (step S105).

The processing unit 210 determines whether or not the increase in pulse rate and the increase in respiratory rate are equal to or greater than the respective threshold values (step S106). If any of the increases is less than the threshold value (step S106: No), the process returns to step S101.

If at least one of the increase in pulse rate and the increase in respiratory rate is equal to or greater than the threshold value (step S106: Yes), the processing unit 210 displays a warning regarding heat stroke on the display unit 230 (step S107). In addition, the processing unit 210 causes the ringing unit 231 to issue a warning regarding heat stroke (step S108).

Due to these warnings, the user may take measures to lower the temperature and humidity in the surrounding environment such as indoors by operating the air conditioner or the like or opening the window.

The processing unit 210 determines whether or not the amount of increase in the heat index, pulse rate, respiratory rate, etc. is less than the threshold value (step S109). If these numerical values are not less than the threshold value (step S109: No), the processing unit 210 repeats the processing of steps S107 to S108. If the above value is less than the threshold value (step S109: Yes), the processing unit 210 ends the processing.

With the above, the process in the heat stroke prediction device 200 of the first embodiment is completed.

(Summary)
According to the heat stroke prediction system 10 of the first embodiment, the heat stroke response process is executed based on at least one of the increase in pulse rate and respiratory rate, and the fact that the heat index is equal to or higher than the threshold value. Will be done.

This makes it possible to reflect the effects of both the surrounding environment and biological information on the onset prediction of heat stroke, and it is possible to predict the onset of heat stroke with high accuracy. Therefore, it is possible to respond according to individual differences due to the physical strength and physical condition of each individual user.

According to the heat stroke prediction system 10 of the first embodiment, it is used in contact with the body of a user who takes a predetermined posture, and air is sealed so that at least one movement accompanying the user's pulse and respiration is transmitted. It has

air pads

41, 51 and piezoelectric sensors 44, 54 for detecting pressure changes generated in the

air pads

41, 51.

In this way, by combining the

air pads

41, 51 and the piezoelectric sensors 44, 54, the user's pulse rate and respiratory rate can be measured with high accuracy.

According to the heat stroke prediction system 10 of the first embodiment, the air pad 41 is arranged on the rug 40 and is used in contact with the back of the user lying on the rug 40.

In the lying state, human pulse and respiratory movements are easily detected through the back. By using the air pad 41 in contact with the user's back in this way, it is possible to increase the detection sensitivity of the user's pulse and respiration and improve the measurement accuracy.

In addition, the room temperature may not be properly controlled in ordinary households, and heat stroke may occur even during sleep. With the above configuration, it is possible to predict the onset of heat stroke during sleep, and for example, it is possible to prevent heat stroke from becoming more severe during sleep without being aware of it.

According to the heat stroke prediction system 10 of the first embodiment, the air pad 51 is arranged on the seat portion of the chair 50 and is used in contact with the thigh portion of the user sitting on the chair 50.

In the sitting position, human pulse and respiratory movements are easily detected through the thighs. By using the air pad 51 in contact with the thigh of the user in this way, it is possible to increase the detection sensitivity of the user's pulse and respiration and improve the measurement accuracy.

(Modification example 1)
Next, the heat stroke prediction system of the first modification of the first embodiment will be described. The heat stroke prediction system of the first modification is different from the above-described first embodiment in that it executes a preliminary response process for heat stroke.

In the heat stroke prediction system of the first modification, the processing unit determines whether or not to execute the preliminary response process for heat stroke in the process corresponding to step S103 in FIG. 3 described above. Specifically, the processing unit of the modified example 1 determines to execute the preliminary response processing in addition to the processing in step S104 and subsequent steps when at least the heat index becomes equal to or higher than the threshold value.

The processing unit of the modified example 1 determines, for example, to display a preliminary warning on the display unit as a preliminary response process for heat stroke, and transmits an instruction to display the preliminary warning on the display unit. Further, the processing unit of the modified example 1 determines, for example, to issue a preliminary alarm to the ringing unit as a preliminary response process for heat stroke, and transmits an instruction to issue a preliminary alarm to the ringing unit. do.

These preliminary warnings and preliminary warnings may include various information such as, for example, that the user is in a state where he / she is likely to develop heat stroke and that the user is urged to take some measures. Further, the preliminary warning and the preliminary warning may have a weaker degree of alerting than the warning and the warning performed in the process corresponding to steps S108 and S109 in FIG. 3 described above.

According to the heat stroke prediction system of the first modification of the first embodiment, the user is alerted to the preliminary response process and the response process a plurality of times, so that appropriate measures are taken to suppress the onset of heat stroke. Is easier to plan.

(Modification 2)
Next, the heat stroke prediction system of the second modification of the first embodiment will be described. The heat stroke prediction system of the second modification executes a heat stroke response process different from that of the first embodiment described above.

In the heat stroke prediction system of the second modification, the heat stroke prediction device has a communication unit that is wirelessly or wiredly connected to air conditioning equipment such as an air conditioner. When the communication unit transmits an instruction from the processing unit of the second modification to the air conditioning equipment, the air conditioning equipment operates according to the instruction of the processing unit under the control of the processing unit. When the processing unit decides to execute the heat stroke response processing in the processing corresponding to step S106 of FIG. 3 described above, for example, the processing unit decides to operate the air conditioning equipment and air via the communication unit. Send instructions to operate the air conditioning equipment. At this time, the processes corresponding to steps S107 and S108 in FIG. 3 may be executed in parallel.

According to the heat stroke prediction system of the second modification of the first embodiment, a predetermined response can be taken without leaving the effective response to the heat stroke to the user, so that the onset of heat stroke is further suppressed. be able to.

[Embodiment 2]
Hereinafter, the second embodiment will be described in detail with reference to the drawings. The heat stroke prediction system of the second embodiment is different from the above-described first embodiment in that it also determines an abnormality other than the heat stroke.

FIG. 4 is a flow chart showing an example of the processing procedure in the heat stroke prediction device according to the second embodiment.

As shown in FIG. 4, the biometric information acquisition unit of the heat stroke prediction system of the second embodiment acquires biometric information such as the user's pulse rate and respiratory rate from the biosensor including the piezoelectric sensor (step S201). The increase amount calculation unit calculates at least one of the increase amount of the pulse rate and the increase amount of the respiratory rate based on the biological information (step S202).

The processing unit of the second embodiment determines whether or not the amount of increase in the pulse rate and the amount of increase in the respiratory rate are equal to or higher than the respective threshold values (step S203). If any of the increases is less than the threshold value (step S203: No), the process returns to step S201.

If at least one of the increase in pulse rate and the increase in respiratory rate is equal to or greater than the threshold value (step S203: Yes), the environmental information acquisition unit acquires environmental information such as temperature / humidity data from a temperature / humidity sensor or the like (step S203: Yes). Step S204). The heat index calculation unit calculates a heat index such as WBGT based on the environmental information (step S205).

The processing unit determines whether or not the heat index is equal to or higher than the threshold value (step S206). If the heat index is equal to or greater than the threshold value (step S206: Yes), the processing unit displays a warning regarding heat stroke on the display unit (step S207). In addition, the processing unit issues a warning regarding heat stroke to the ringing unit (step S208).

The processing unit determines whether the heat index and the amount of increase in pulse rate, respiratory rate, etc. are below the threshold value in order to confirm whether appropriate measures have been taken by the user who received the warning (step). S209). If these numerical values are not less than the threshold value (step S209: No), the processing unit repeats the processing of steps S207 to S208. If the above value is less than the threshold value (step S209: Yes), the processing unit ends the processing.

On the other hand, when it is determined in step S203 described above that at least one of the increase in pulse rate and respiratory rate is equal to or greater than the threshold value, but the heat index is less than the threshold value (step S206: No), there is a possibility that the user has an abnormality other than heat stroke.

Therefore, a warning that another abnormality such as heart failure has occurred is displayed on the processing unit and the display unit (step S210). In addition, the processing unit issues a warning regarding other abnormalities such as heart failure to the ringing unit (step S211).

With the above, the process in the heat stroke prediction device of the second embodiment is completed.

According to the heat stroke prediction system of the second embodiment, for example, it is determined that an abnormality other than the heat stroke may have occurred with substantially the same hardware configuration as that of the first embodiment, and the corresponding process is executed. can do.

[Other Embodiments]
In the heat stroke prediction system of the above-described first and second embodiments and each of the modified examples, the pulse rate and the respiratory rate of the user are detected by the biological sensor having the

air pads

41, 51 and the piezoelectric sensors 44, 54 and the like. , The configuration of the biosensor is not limited to this.

For example, the biosensor may have a configuration including an imaging device such as a camera. In this case, the respiratory rate can be detected from the change in the chest circumference of the user by image diagnosis using an imaging device. Further, for example, the biosensor may have a configuration including an oxygen inhaler. In this case, the respiratory rate of the user can be detected from the oxygen inhalation timing and the like. Further, for example, the biosensor may have a configuration including electrodes that can be worn on the user's body. In this case, the heart rate of the user can be detected by obtaining an electrocardiogram from the electrodes worn by the user. At this time, the heartbeat interval (RRI: R-R Interval) may be detected, and the modulation of the user's body may be determined from the fluctuation of the heartbeat interval or the like. The heartbeat interval is detected by extracting the interval of a waveform called an R wave from the obtained electrocardiogram.

In the heat stroke prediction system of the above-described first and second embodiments and each modification, the user's normal pulse rate and respiratory rate are extracted from the user's pulse rate and respiratory rate acquired so far. , Not limited to this.

As the user's normal pulse rate and respiratory rate, for example, the statistical values of the resting heart rate and respiratory rate may be used. In general, the resting heart rate is 65 beats / minute for adult males and 70 beats / minute for adult females. The resting respiratory rate is 15 times / minute for both men and women.

The heat stroke prediction program executed by the heat stroke prediction system of the above-described first and second embodiments and each modification is provided by being incorporated in the ROM or the like in advance, but the configuration is not limited to this.

The heat stroke prediction programs of the above-described first and second embodiments and each modification are files in an installable format or an executable format, and are a CD-ROM (Compact Disc Read Only Memory), a flexible disk (FD), or a CD-R. It may be configured to be provided as a computer program product by recording on a computer-readable recording medium such as (Compact Disc-Recordable) or DVD (Digital Versatile Disc).

Further, the heat stroke prediction programs of the above-described first and second embodiments and each modification may be stored on a computer connected to a network such as the Internet and provided by downloading via the network. .. Further, the heat stroke prediction programs of the above-described first and second embodiments and each modification may be provided or distributed via a network such as the Internet.

Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

10 ... Heat stroke prediction system, 40 ... Rug, 41, 51 ... Air pad, 42, 52 ... Temperature and humidity sensor, 43, 53 ... Hose, 44, 54 ... Piezoelectric sensor, 45, 55 ... Amplifier, 50 ... Chair, 100a, 100b ... Measuring device, 200 ... Heat stroke prediction device, 210 ... Processing unit, 211x ... Biological information acquisition unit, 211y ... Environmental information acquisition unit, 212x ... Increase amount calculation unit, 212y ... Heat index calculation unit, 213 ... Storage unit , 230 ... Display unit, 231 ... Ringing unit.

Claims

Computer,
A biometric information acquisition unit that acquires biometric information including at least one of the user's pulse rate and respiratory rate, and
The Environmental Information Acquisition Department, which acquires environmental information,
Based on the biometric information, the amount of increase in the pulse rate from the user's normal pulse rate when the biometric information is acquired, and the respiratory rate when the biometric information is acquired in the user's normal time. An increase amount calculation unit that calculates at least one of the increase amounts from the respiratory rate,
Based on the above environmental information, a heat index calculation unit that calculates a heat index indicating the degree of heat stroke, and a heat index calculation unit.
Performing a heat stroke response process based on the fact that at least one of the pulse rate and the increase in the respiratory rate is equal to or higher than the threshold value and the heat index is equal to or higher than the threshold value. To function as a heat stroke predictor, which has a processing unit that determines
program.
The processing unit
As a response process to the heat stroke, it is determined to display a warning on a display unit under the control of the computer.
The program according to claim 1.
The processing unit
As a response process to the heat stroke, it is determined to issue an alarm to the ringing unit under the control of the computer.
The program according to claim 1 or 2.
The processing unit
As a response process to the heat stroke, it is decided to operate the air conditioning equipment under the control of the computer.
The program according to any one of claims 1 to 3.
The processing unit
As a preliminary treatment for the heat stroke, at least when the heat index becomes equal to or higher than the threshold value.
Decision to display a warning on the display under the control of the computer,
The decision to issue an alarm to the ringing unit under the control of the computer, and
Make at least one of the decisions to operate the air conditioning equipment under the control of the computer.
The program according to any one of claims 1 to 4.
The processing unit
If at least one of the pulse rate and the increase in the respiratory rate is equal to or higher than the threshold value and the heat index is less than the threshold value, an abnormality other than the heat stroke occurs. Judge that you did,
The program according to any one of claims 1 to 5.
The environmental information includes information on temperature and humidity.
The program according to any one of claims 1 to 6.
The heat index calculation unit
As the heat index, the wet-bulb globe temperature, which represents heat by three elements of humidity, air temperature, and the intensity of sunlight, is calculated.
The program according to any one of claims 1 to 7.
A probe that is used in contact with the user's body in a given posture and receives vibrations associated with at least one of the user's pulse and respiration, and
A biosensor that has a sensor that detects the movement of the user received by the probe and measures biometric information including at least one of the user's pulse rate and respiratory rate.
An environment sensor that measures environmental information about temperature and humidity,
A heat stroke prediction device for predicting the onset of heat stroke for the user based on the information from the biosensor and the environment sensor is provided.
The heat stroke prediction device is
A biometric information acquisition unit that acquires the biometric information from the biosensor,
An environmental information acquisition unit that acquires the environmental information from the environment sensor, and
Based on the biometric information, the amount of increase in the pulse rate from the user's normal pulse rate when the biometric information is acquired, and the respiratory rate when the biometric information is acquired in the user's normal time. An increase amount calculation unit that calculates at least one of the increase amounts from the respiratory rate,
Based on the above environmental information, a heat index calculation unit that calculates a heat index indicating the degree of heat stroke, and a heat index calculation unit.
Performing a heat stroke response process based on the fact that at least one of the pulse rate and the increase in the respiratory rate is equal to or higher than the threshold value and the heat index is equal to or higher than the threshold value. Has a processing unit, which determines
system.
The exploration tool is an air pad filled with air.
The sensor is a piezoelectric sensor that detects a pressure change generated in the air pad.
The system according to claim 9.
The exploration tool is placed on the rug and is used in contact with the back of the user lying on the rug.
The system according to claim 10.
The probe is disposed on the seat of the seat and is used in contact with the thigh of the user sitting on the seat.
The system according to claim 10.
The environment sensor includes a temperature / humidity sensor.
The system according to any one of claims 9 to 12.
The environment sensor includes a radiant heat sensor.
The system according to claim 13.
A biosensor that measures biometric information, including at least one of the user's pulse rate and respiratory rate,
Equipped with an environment sensor that measures environmental information about temperature and humidity,
The biosensor
An air pad that is used in contact with the body of a user in a predetermined position and is filled with air so that it can receive vibrations associated with at least one of the user's pulse and breathing.
It has a piezoelectric sensor that detects a pressure change generated in the air pad.
measuring device.
Acquire biometric information, including at least one of the user's pulse rate and respiratory rate,
Get environmental information about temperature and humidity,
Based on the biometric information, the amount of increase in the pulse rate from the user's normal pulse rate when the biometric information is acquired, and the respiratory rate when the biometric information is acquired in the user's normal time. Calculate at least one of the increases from your respiratory rate and
Based on the above environmental information, a heat index indicating the degree of heat stroke was calculated.
Based on the fact that at least one of the pulse rate and the increase in the respiratory rate is equal to or higher than the threshold value and the heat index is equal to or higher than the threshold value, the heat stroke response process is executed.
Method.