State notification device, state notification system, and state notification method

Abstract

To enable an occupant of a vehicle to avoid a risk of falling into a dehydration state, on the basis of an air blowing state from an air conditioner.SOLUTION: A heat index determination unit 1 determines whether or not a heat index H indicating a degree of heat in a vehicle cabin for an occupant of a vehicle is out of a reference range. When the heat index H is out of the reference range, an air blowing determination unit 2 determines whether or not an air blowing state is a predetermined air blowing state in which air is blown from the air conditioner toward the occupant at an air blowing amount larger than a predetermined air blowing amount according to the passenger information P and an air conditioning information A indicating an air blowing direction and the air blowing amount from the air conditioner in the vehicle cabin. When the air blowing state is the predetermined air blowing state, a state determination unit 3 determines whether or not the occupant may possibly fall into a dehydration state according to duration of the predetermined air blowing state. When the occupant is determined to possibly fall into the dehydrated state, a notification information output unit 4 outputs notification information INF to notify the occupant.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a state notification device, a state notification system, and a state notification method.

Background Art

[0002] A vehicle occupant may be placed in an uncomfortable environment due to factors such as climate. For example, in the hot sun in summer, the temperature inside the sealed vehicle cabin may be higher than the outside air temperature. In this case, the vehicle occupant is at risk of heat stroke.

[0003] For example, when an operator drives an agricultural work machine such as a tractor with insufficient equipment such as an air conditioner to perform agricultural work, generally, the agricultural work is performed in an environment where the sun shines. On the other hand, Patent Document 1 proposes a technique for preventing an operator driving an agricultural work machine from suffering heat stroke. In the agricultural work machine according to this technique, an environmental sensor detects the heat index of the environment, and sets a target value for the continuous working time based on the heat index. Then, when the operator's continuous working time reaches the work target time, a notification is made to prompt the suspension of agricultural work and water supply. Thereby, it is possible to timely notify that the operator is at risk of heat stroke.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In Patent Document 1, a notification is made to prompt the suspension of work based on the work target time of the continuous working time determined based on the heat index. However, not only in agricultural work machines, but also in vehicles such as passenger cars surrounded by windows and roofs, depending on the environment such as the presence or absence of an air conditioner, it is assumed that the target time set only based on the heat index may not be an appropriate value.

[0006] For example, when a passenger gets on board in a vehicle cabin with a limited space, in hot weather, the temperature in the vehicle cabin may be higher than the outside air temperature due to the influence of the sun shining through the window from outside. In this case, the heat index indicating the outside environment may deviate from the environment in the vehicle cabin. Therefore, if the target time serving as the notification criterion is simply set based on the heat index, there is a risk that the set time will be too long to prevent heatstroke in the passengers in the vehicle cabin.

[0007] Also, when the air conditioner is operating to control the temperature in the vehicle cabin, the passengers are exposed to the air blowing from the air conditioner, and the evaporation of sweat from the body surface of the passengers is promoted by the air blowing from the air conditioner, resulting in the loss of body moisture. As a result, there is a risk that the passengers will fall into a dehydrated state. Therefore, it is required to detect the risk that the passengers in the vehicle will fall into a dehydrated state in consideration of the environment in which the passengers are placed.

[0008] The present disclosure has been made in view of the above circumstances, and an object thereof is to avoid the risk that the passengers in a vehicle will fall into a dehydrated state based on the air blowing state from an air conditioner.

Means for Solving the Problem

[0009] The state notification device according to the present disclosure includes a heat index determination unit that determines whether or not a heat index indicating the degree of heat in the vehicle cabin for a passenger in the vehicle is outside a reference range, and when the heat index is outside the reference range, the information of the passenger in the vehicle cabin and air conditioning information indicating the air blowing direction and air blowing amount from an air conditioner in the vehicle cabin, and a blowing determination unit that determines whether or not it is a predetermined blowing state in which air is blown from the air conditioner toward the passenger at an air blowing amount stronger than a predetermined air blowing amount, a state determination unit that determines whether or not there is a risk that the passenger will fall into a dehydrated state according to the duration of the predetermined blowing state when it is the predetermined blowing state, and a notification information output unit that outputs notification information for notifying the passenger when there is a risk that the passenger will fall into a dehydrated state.

[0010] The state notification method according to the present disclosure determines whether a heat index indicating the degree of heat in the vehicle interior for a vehicle occupant is outside a reference range. When the heat index is outside the reference range, according to the information of the occupant in the vehicle interior and the air conditioning information indicating the blowing direction and blowing volume from the air conditioner in the vehicle interior, it is determined whether it is a predetermined blowing state in which air is blown from the air conditioner toward the occupant at a blowing volume stronger than a predetermined blowing volume. When it is the predetermined blowing state, according to the duration of the predetermined blowing state, it is determined whether there is a risk that the occupant may fall into a dehydrated state. When there is a risk that the occupant may fall into a dehydrated state, notification information for notifying the occupant is output.

Advantages of the Invention

[0011] According to the present disclosure, the risk that a vehicle occupant may fall into a dehydrated state can be avoided based on the blowing state from the air conditioner.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, the same reference numerals are given to the same elements, and redundant descriptions are omitted as necessary.

[0014] Embodiment 1 In this embodiment, a state notification device that outputs notification information for notifying a passenger when there is a risk that a passenger in the vehicle interior may fall into a dehydrated state due to the vehicle interior environment will be described.

[0015] FIG. 1 is a diagram schematically showing a configuration example of a vehicle 100 equipped with a state notification device 10 according to Embodiment 1. The vehicle 100 is provided with an air conditioner 101, a passenger information acquisition unit 102, a heat index acquisition unit 103, and a notification unit 104. Although not shown, the vehicle 100 is also equipped with various devices used for driving the vehicle 100.

[0016] The air conditioner 101 can function as a cooling device and a heating device that adjust the temperature in the passenger compartment 110 of the vehicle 100. The air conditioner 101 outputs information indicating the blowing direction and the blowing volume to the passenger compartment 110 to the state notification device 10 as air conditioning information A.

[0017] The passenger information acquisition unit 102 outputs passenger information P indicating the position information where the passenger 120 in the passenger compartment 110 is seated to the state notification device 10. In the figure, the passenger 120 is described as the driver, but it is not limited to this. The passenger information acquisition unit 102 may detect the passenger 120 sitting on the seat by detection means such as a pressure sensor provided on the seat, and output the detection result as the passenger information P. Further, the passenger information acquisition unit 102 may detect the passenger 120 from an image captured by an imaging device such as a camera capable of photographing the interior of the vehicle, and output the detection result as the passenger information P. Note that the detection means for the passenger 120 is not limited to one, and a plurality of detection means may be combined to detect the passenger 120.

[0018] The heat index acquisition unit 103 acquires a heat index H indicating the degree of heat for the passenger 120 in the passenger compartment 110. The heat index acquisition unit 103 has, for example, a plurality of sensors for measuring the environment in the passenger compartment 110, and measures the temperature and humidity in the passenger compartment 110, and the amount of solar radiation and the amount of radiation to the passenger compartment 110. Then, the heat index acquisition unit 103 acquires the heat index H based on the measurement results and outputs the heat index H to the status notification device 10. At this time, the heat index acquisition unit 103 may calculate a value called the wet-bulb globe temperature (WBGT) as the heat index H.

[0019] Based on the heat index H, the passenger information P, and the air-conditioning information A, the status notification device 10 determines whether to notify the passenger 120 that the passenger 120 is in an environment where there is a risk of falling into a dehydrated state. Then, when it is determined that notification is to be performed, the status notification device 10 outputs notification information INF to the notification unit 104. The status notification device 10 may be incorporated, for example, into a car navigation system mounted on the vehicle 100, or may be configured as a device independent of the car navigation system.

[0020] The notification unit 104 provides the notification information INF received from the status notification device 10, which notifies the passenger 120 that there is a risk of falling into a dehydrated state, so that the passenger 120 can recognize it. The notification unit 104 may have, for example, a display unit and an audio output unit that provide the notification information INF to the passenger 120. The display unit is, for example, a display equipped on the vehicle 100, and may provide the notification information INF in a visually recognizable manner to the passenger 120. The audio output unit is, for example, a speaker provided on the vehicle 100, and may provide the notification information INF to the passenger 120 by voice. Both the display unit and the audio output unit may share, or either one of them may provide the notification information INF. The display unit may be realized, for example, by using a display function such as a display of a car navigation system mounted on the vehicle 100. The audio output unit may be realized by using an audio output function such as a speaker that outputs the audio of the car navigation system mounted on the vehicle 100.

[0021] That is, the state notification device 10 and the notification unit 104 constitute a state notification system that performs from the output of the notification information INF to the provision to the passenger 120.

[0022] Next, the configuration of the state notification device 10 will be described. FIG. 2 is a block diagram schematically showing the configuration of the state notification device 10 according to the first embodiment. The state notification device 10 includes a heat index determination unit 1, a blowing determination unit 2, a state determination unit 3, and a notification information output unit 4.

[0023] The heat index determination unit 1 determines whether the heat index H output from the passenger information acquisition unit 102 is outside the reference range, and outputs the determination result R1 to the blowing determination unit 2.

[0024] When the blowing determination unit 2 receives the determination result R1, it evaluates the blowing state from the air conditioner 101 to the passenger 120 based on the passenger information P and the air conditioning information A. Then, based on the evaluation result of the blowing state, the blowing determination unit 2 determines whether it is a monitoring target state where there is a risk that the passenger 120 will fall into a dehydrated state due to the environment in the passenger compartment 110, and outputs the determination result R2 to the state determination unit 3.

[0025] When the state determination unit 3 receives the determination result R2, it measures the elapsed time T since the passenger compartment 110 entered the monitoring target state. The elapsed time T is, for example, 30 minutes when it is expected that the dehydration of the passenger will progress continuously under the above-mentioned time conditions. The elapsed time T may be set based on information obtained by actual measurement or the like. Then, when the elapsed time T reaches a predetermined time, the state determination unit 3 outputs a notification command INS to the notification information output unit 4.

[0026] In response to the notification command INS, the notification information output unit 4 outputs notification information INF notifying that there is a risk that the passenger 120 will fall into a dehydrated state.

[0027] Next, the notification information output operation of the state notification device 10 will be described. FIG. 3 is a flowchart of the notification information output operation of the state notification device 10 according to the first embodiment.

[0028] Step S1 The heat index determination unit 1 continuously determines whether the heat index H is outside the reference range. Here, the heat index determination unit 1 determines whether the heat index H is greater than the reference value H REF or not. Then, when the heat index H is greater than the reference value H REF , the heat index determination unit 1 determines that it is outside the reference range, and when the heat index H is less than the reference value H REF , it determines that it is not within the reference range.

[0029] In addition, when the heat index H is equal to the reference value H REF , it may be included in the case where the heat index H is greater than the reference value H REF , or it may be included in the case where the heat index H is less than the reference value H REF . Similarly hereinafter, when the reference value and a specific value are equal in the determination of the magnitude of the specific value with respect to the reference value, the specific value may be included in the case where it is greater than the reference value, or the specific value may be included in the case where it is less than the reference value.

[0030] When the heat index H is outside the reference range (YES in S1), the heat index determination unit 1 outputs the determination result R1 to the air supply determination unit 2 and advances the process to step S2. When the heat index H is not outside the reference range (NO in S1), the heat index determination unit 1 advances the process to step S5. Note that the heat index determination unit 1 may perform the determination process at a predetermined cycle.

[0031] Step S2 When the air supply determination unit 2 receives the determination result R1, it determines the air supply state from the air conditioner 101 to the passenger 120 based on the passenger information P and the air conditioning information A. Hereinafter, step S2 will be described in more detail.

[0032] Step S21 The air supply determination unit 2 acquires the position information of the passenger 120 based on the passenger information P.

[0033] Step S22 Based on the acquired position information of the passenger 120 and the air conditioning information A, the air supply determination unit 2 determines whether the air supply unit 130 of the air conditioner 101 is facing the passenger. When the air supply unit 130 of the air conditioner 101 is not facing the passenger (NO in S22), the air supply determination unit 2 advances the process to step S5.

[0034] Step S23 When the air supply unit 130 of the air conditioner 101 is facing the passenger (YES in S22), the air supply determination unit 2 determines whether the air supply volume V indicated by the air supply information is outside the reference range. The situation where the air supply volume V is outside the reference range is, for example, when the air conditioner 101 is set to an air volume near the upper limit of the air conditioner, and in combination with the direction of the aforementioned air supply unit 130, the sweating of the passenger is strongly promoted, and the air supply volume is in a strong state. Here, for the sake of simplicity, it is described that the air supply determination unit 2 determines whether the air supply volume V is greater than the reference value V REF is greater than. And the air supply determination unit 2 determines that it is outside the reference range when the air supply volume V is greater than the reference value V REF is greater than, and determines that it is not outside the reference range when the air supply volume V is not greater than the reference value V REF is not greater than.

[0035] Here, assume that a five - stage air supply level 1 to 5 is set, where the air supply level 1 is the minimum level and the air supply level 5 is the maximum level. For example, the air supply determination unit 2 determines whether the air supply level of the air conditioner 101 is stronger than the reference air supply level 3. In this case, if the air supply level of the air conditioner 101 is the stronger air supply level 4 or and 5 than the reference air supply level 3, the air supply determination unit 2 determines that the air supply volume V is outside the reference range. If the air supply level of the air conditioner 101 is the air supply level 1 to 3 below the reference air supply level 3, the air supply determination unit 2 determines that the air supply volume V is not outside the reference range. The air supply volume from the vehicle air conditioner varies widely depending on the vehicle, such as those with about two - stage air supply levels or those whose air supply level is variably controlled in multiple or stepless stages automatically or manually. However, the reference range of the air supply volume may be set in advance or by setting according to them.

[0036] When the air volume V is outside the reference range (YES in S23), the air volume determination unit 2 outputs the determination result R2 to the state determination unit 3 and advances the process to step S3. When the air volume V is not outside the reference range (NO in S23), the air volume determination unit 2 advances the process to step S5.

[0037] Step S3 When the state determination unit 3 receives the determination result R2, it determines whether the measurement of the elapsed time T since the state in which there is a risk that the occupant 120 may fall into a dehydrated state due to the environment in the passenger compartment 110 has already started. When the measurement of the elapsed time T has started (YES in S3), the state determination unit 3 advances the process to step S6.

[0038] Step S4 When the measurement of the elapsed time T has not started (NO in S3), the state determination unit 3 starts the measurement of the elapsed time T and returns the process to step S1.

[0039] Step S5 The state determination unit 3 stops the measurement of the elapsed time T and resets the value of the elapsed time T. Then, the state determination unit 3 returns the process to step S1.

[0040] Step S6 The state determination unit 3 monitors the elapsed time T and determines whether the elapsed time T has reached the reference time T REF When the elapsed time T has reached the reference time T REF (YES in S6), the state determination unit 3 outputs a notification command INS. When the elapsed time T has not reached the reference time T REF (NO in S6), the state determination unit 3 returns the process to step S1.

[0041] Step S7 The notification information output unit 4 outputs notification information INF for notifying that there is a risk that the occupant 120 may fall into a dehydrated state in response to the notification command INS. In the example of this flowchart, after outputting the notification information INF, a series of processes are terminated.

[0042] As described above, when there is a risk that the passenger 120 in the passenger compartment 110 of the vehicle 100 may fall into a dehydrated state due to the environment in the passenger compartment 110, the state notification device 10 can output notification information INF for notifying the passenger 120.

[0043] And, as described above, the notification unit 104 provides the notification information INF to the passenger 120 so that the passenger 120 can recognize it. For example, the notification unit 104 may display a message such as "You have been exposed to the air of the air conditioner for a long time, and there is a possibility that dehydration is progressing. It is recommended to replenish moisture." Also, for example, the notification unit 104 may output the message not only as a display on the display but also as voice.

[0044] Thereby, the passenger 120 can take actions to avoid falling into a dehydrated state, such as supplying water, operating the air conditioner 101 to reduce the air volume, or stopping the air conditioner 101.

[0045] When a plurality of passengers are on board in the passenger compartment 110, the state notification device 10 may perform the above-described notification information output operation described with reference to FIG. 3 for each of the plurality of passengers.

[0046] For example, when using the air conditioner in the vehicle interior on a hot day, if strong air blowing is performed from the air conditioner, the evaporation of sweat from the body surface of the passenger is promoted, and the risk of dehydration symptoms increases. Even if the passenger feels comfortable under the air conditioner, the dehydration symptoms may progress without being noticed. On the other hand, according to this configuration, when the air blowing intensity is stronger than a predetermined intensity and the passenger is exposed to strong air blowing for a longer time than the reference time, the risk of the occurrence of dehydration symptoms can be notified to the passenger at a suitable timing before the symptoms appear. Thereby, the passenger can take appropriate measures, such as supplying water or weakening the air blowing from the air conditioner 101, at a stage before falling into a dehydrated state and causing problems.

[0047] In addition, the state notification device 10 can be applied not only when the air conditioner 101 is in the cooling operation but also when it is in the heating operation. For example, in winter, the humidity of the atmosphere is often low. When the vehicle interior is heated and air is blown, it is conceivable that the evaporation of sweat will be accelerated due to the low humidity. Therefore, similar to when using the air conditioner for cooling, when the air blowing intensity is stronger than a predetermined intensity and the passenger is exposed to the air blowing for a longer time than the reference time, by notifying the passenger of the risk of falling into a dehydrated state, it is possible to similarly avoid the risk of the passenger falling into a dehydrated state in advance.

[0048] Other embodiments Note that the present invention is not limited to the above-described embodiments, and can be appropriately modified without departing from the gist. For example, in the above-described embodiments, the heat index acquisition unit 103 has been described as observing the environment inside the vehicle compartment 110, but this is merely an example. The heat index acquisition unit 103 may acquire the heat index based on the observation result of the environment outside the vehicle. However, since it is desirable to acquire the heat index based on the measurement result at a position as close as possible to the passenger 120, it is desirable to acquire the heat index based on the observation result of the environment inside the vehicle compartment 110, particularly at a position close to the passenger 120.

[0049] Note that the vehicle compartment 110 of the vehicle 100 may be in a sealed state where all the windows are closed, or in a state where a part or all of the windows are open. When the vehicle compartment 110 of the vehicle 100 is in a sealed state, the risk of the passenger 120 falling into a dehydrated state is high because the dehumidifying effect of the cooling device of the air conditioner and ventilation are restricted, and the provision of the notification information INF by the state notification device 10 is more effective. Also, even when a part or all of the windows are open, in dry weather, the evaporation of the sweat of the passenger 120 may be promoted by the wind blowing in from the window, so it is considered that the provision of the notification information INF by the state notification device 10 is effective.

[0050] The passenger information acquisition unit 102 may acquire information about the clothing of the passenger 120 based not only on the position of the passenger 120 but also on, for example, an image of the passenger 120 captured by an imaging device. At this time, information about the clothing of the passenger 120 may be acquired using a thermal camera or various general image recognition methods. Then, the information about the clothing of the passenger 120 may be included in the passenger information P and output to the status notification device 10. For example, in winter, if the passenger 120 is wearing thick clothes, it is considered that the amount of sweat evaporation by blowing is small. Therefore, the status notification device 10 may set a longer reference time T REF for winter as the reference time T REFW . Also, for example, in summer, if the passenger 120 is wearing light clothes or short sleeves, it is considered that the amount of sweat evaporation by blowing increases. Therefore, the status notification device 10 may set a shorter reference time T REF for summer as the reference time T REFS . Thereby, it is possible to more accurately predict the risk that the passenger 120 will fall into a dehydrated state according to the clothing of the passenger 120. Also, when the passenger 120 is an elderly person or an infant, it is expected that it is difficult to notice the dehydration symptoms, so a shorter high detection reference time T REFHIGH may be set.

[0051] The passenger information acquisition unit 102 may detect not only the position of the passenger 120 but also that the passenger 120 has received water supply such as by consuming a beverage based on, for example, an image of the passenger 120 captured by an imaging device. Then, information indicating the timing when the passenger 120 received water supply may be included in the passenger information P and output to the status notification device 10. For example, when water supply is performed within a predetermined time, it is considered that the risk of the passenger 120 falling into a dehydrated state is lower than when no water supply is performed. In this case, the status notification device 10 may set a longer time as the reference time T REF or reset the duration time T based on the detection of the water supply of the passenger 120. Thereby, it is possible to more accurately predict the risk that the passenger 120 will fall into a dehydrated state according to the actions of the passenger 120 and suppress the occurrence of unnecessary notifications.

[0052] The air conditioner 101 may consider, as air conditioning information, the temperature setting and the air blowing direction setting for each of a plurality of air outlets with respect to the passenger 120. The direction of the air blowing unit 130 may be determined to be a direction related to the passenger in consideration of modes such as the air outlets arranged for each seat of the air conditioner 101 and upper body air blowing. In this case, the air conditioner 101 may output, as air conditioning information A, information indicating the air blowing direction and the air blowing volume for each of the plurality of air outlets. Further, when a plurality of air conditioners 101 are mounted on the vehicle 100, the status notification device 10 may perform a notification information output operation according to each, using the air conditioning information A from the plurality of air conditioners 101.

[0053] The passenger information acquisition unit 102 and the heat index acquisition unit 103 may each have a plurality of sensors and a plurality of imaging devices, or may be configured by combining these. The passenger information acquisition unit 102 and the heat index acquisition unit 103 may output passenger information P and heat index H, respectively, based on information acquired from a plurality of sensors, a plurality of imaging devices, and combinations thereof.

[0054] The processing executed by the status notification device according to the above-described embodiment may be realized using a semiconductor processing device including an ASIC (Application Specific Integrated Circuit). Further, these processes may be realized by causing a computer system including at least one processor (e.g., microprocessor, CPU, GPU, MPU, DSP (Digital Signal Processor)) to execute a program. Specifically, one or a plurality of programs including an instruction group for causing a computer system to perform an algorithm related to these transmission signal processing or reception signal processing may be created and the program may be supplied to the computer.

[0055] These programs can be stored using various types of non-transitory computer readable media and supplied to a computer. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer readable media include magnetic recording media (such as flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (such as magneto-optical disks), CD-ROM (Read Only Memory), CD-R, CD-R / W, semiconductor memories (such as mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (random access memory)). Also, the programs may be supplied to the computer by various types of transitory computer readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves. Transitory computer readable media can supply the program to the computer via wired communication channels such as electric wires and optical fibers, or wireless communication channels.

[0056] Hereinafter, an example of the hardware configuration of the status notification device 10 is shown. FIG. 4 is a diagram showing an example of the hardware configuration for realizing the status notification device 10. The status notification device 10 can be realized by a computer 9000 such as a dedicated computer or a personal computer (PC). However, the computer does not necessarily have to be physically single, and may be plural when executing distributed processing. As shown in FIG. 10, the computer 9000 has a CPU (Central Processing Unit) 9001, a ROM (Read Only Memory) 9002, and a RAM (Random Access Memory) 9003, which are interconnected via a bus 9004. Note that although the OS software and the like for operating the computer are omitted from the description, it is assumed that the computer for constructing this network analysis system also naturally has them.

[0057] The bus 9004 is also connected to an input / output interface 9005. Connected to the input / output interface 9005 are, for example, an input unit 9006 composed of a switch, a touch panel, etc., a display composed of an LED, an LCD, etc., an output unit 9007 composed of a speaker, etc., a storage unit 9008 composed of a semiconductor memory, etc., a communication unit 9009 composed of a wireless communication module, etc.

[0058] The CPU 9001 executes various processes according to various programs stored in the ROM 9002 or various programs loaded from the storage unit 9008 into the RAM 9003. In the present embodiment, the processes of the state notification device 10 are executed. Note that a GPU (Graphics Processing Unit) may be provided, and similar to the CPU 9001, various processes may be performed according to various programs stored in the ROM 9002 or various programs loaded from the storage unit 9008 into the RAM 9003. In the present embodiment, the processes in the state notification device 10 may be performed. Note that the GPU is suitable for applications that perform routine processes in parallel, and by applying it to, for example, processes in a neural network, it is also possible to improve the processing speed compared to the CPU 9001. The RAM 9003 also appropriately stores data and the like necessary for the CPU 9001 and the GPU to execute various processes.

[0059] The communication unit 9009 performs communication processing via, for example, the Internet (not shown), transmits data provided from the CPU 9001, or outputs data received from a communication partner to the CPU 9001, the RAM 9003, and the storage unit 9008. The storage unit 9008 exchanges data with the CPU 9001 and performs storage and deletion of information. The communication unit 9009 also performs communication processing of analog signals or digital signals with other devices.

[0060] The input / output interface 9005 is also connected to a drive 9010 as required. For example, a magnetic disk 9011, an optical disk 9012, a flexible disk 9013, or a memory card 9014 is appropriately mounted, and a computer program read from them is installed in the storage unit 9008 as required.

Explanation of Signs

[0061] 1 Heat index determination unit 2 Airflow determination unit 3 State determination unit 4 Notification information output unit 10 Status notification device 100 Vehicle 101 Air conditioner 102 Occupant information acquisition unit 103 Heat index acquisition unit 104 Notification unit 110 Passenger compartment 120 Occupant 130 Airflow unit A Air conditioning information H Heat index INF Notification information INS Notification command P Occupant information R1, R2 Judgment results

Claims

1. A heat index determination unit that determines whether or not a heat index indicating the degree of heat inside the vehicle cabin for a passenger in the vehicle is outside a reference range; When the heat index is outside the reference range, according to the information of the passenger in the vehicle cabin and the air conditioning information indicating the air blowing direction and air volume from the air conditioner in the vehicle cabin, a blowing determination unit that determines whether or not it is a predetermined blowing state in which air is blown from the air conditioner toward the passenger at an air volume stronger than a predetermined air volume; When it is in the predetermined blowing state, a state determination unit that determines whether or not the passenger is likely to fall into a dehydrated state according to the duration of the predetermined blowing state; A notification information output unit that outputs notification information for notifying the passenger when there is a possibility that the passenger will fall into a dehydrated state. A state notification device.

2. The heat index is a wet bulb globe temperature (WBGT), The heat index determination unit determines that it is outside the reference range when the heat index is greater than a predetermined reference value. The state notification device according to Claim 1.

3. The state determination unit determines that there is a possibility that the passenger will fall into a dehydrated state when the duration is longer than a predetermined time. The state notification device according to Claim 1 or 2.

4. The state notification device according to Claim 1 or 2, And a notification means for providing the notification information to the passenger so that the passenger can recognize it. A state notification system.

5. Determine whether or not a heat index indicating the degree of heat inside the vehicle cabin for a passenger in the vehicle is outside a reference range, When the heat index is outside the reference range, determine whether or not it is a predetermined blowing state in which air is blown from the air conditioner toward the passenger at an air volume stronger than a predetermined air volume according to the information of the passenger in the vehicle cabin and the air conditioning information indicating the air blowing direction and air volume from the air conditioner in the vehicle cabin, When it is in the predetermined blowing state, determine whether or not the passenger is likely to fall into a dehydrated state according to the duration of the predetermined blowing state, When there is a possibility that the passenger will fall into a dehydrated state, output notification information for notifying the passenger. A state notification method.

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