JP2011246037A - Vehicle air conditioning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle air conditioning apparatus for detecting information on the sense of occupants about temperature and more detailed physical condition information with high accuracy, and properly performing pre-air conditioning using the information.SOLUTION: A pre-air conditioning button 506 which is a key 5 of a remote controller functions as a photoelectric pulse wave sensor. The occupants press the sensor. As a result, pulse waves of the occupants outside the vehicle are detected, pulse rates and blood flows are calculated from the pulse waves. Accordingly, an air conditioner ECU 3 determines whether the pre-air conditioning is performed or not according to the values.

Description

  The present invention relates to a vehicle air conditioner.

  Conventionally, there are various proposals for improving the performance of air conditioners installed in automobile vehicles. For example, in Patent Document 1 below, a means for measuring the body temperature of an occupant is provided, the body temperature of the occupant is measured before boarding, and pre-air conditioning is performed based on the body temperature (air conditioning before the occupant enters the vehicle or when the ignition is off). ) Is disclosed.

Japanese Patent Laid-Open No. 2006-240438

  In general, the fluctuation range of the body temperature is smaller than the fluctuation range of the outside air temperature by human beings and is easily affected by the outside air temperature. Therefore, when using the technique disclosed in Patent Document 1, the body temperature of the occupant may not be detected accurately. Furthermore, when only the information on the body temperature is used, it is difficult to perform detailed air conditioning control according to the physical condition of the occupant that cannot be understood only from the body temperature.

  Accordingly, in view of the above problems, the problem to be solved by the present invention is to detect information on the sensation of the occupant's cold heat, and more detailed information on the physical condition of the occupant with high accuracy, and appropriately use the information to perform pre-processing. It is providing the vehicle air conditioner which performs air conditioning.

Means for Solving the Problems and Effects of the Invention

  In order to achieve the above object, an air conditioner for a vehicle according to the present invention is provided in a vehicle, and an air conditioning unit that adjusts the air conditioning in the vehicle interior, and can be carried outside the vehicle cabin and wirelessly communicated with the air conditioning unit. A portable device having a function to detect, a detecting means for detecting a pulse wave of a human body that comes in contact with the portable device, and a correlation with a sense of cold of the human body from the pulse wave detected by the detecting means A first calculating means for calculating a numerical value having a value, and when the numerical value calculated by the first calculating means is a numerical value indicating that it feels hot, the air conditioning unit is instructed to cool, and the first calculating means And a first command means for commanding heating to the air-conditioning unit when the calculated value is a value indicating that the person feels cold.

  Thus, in the vehicle air conditioner according to the present invention, the portable device carried by the occupant is equipped with a means for detecting the pulse wave of the human body, detects the occupant's pulse wave, and detects the occupant's cold and hot from the detected pulse wave. By calculating a value that correlates with the feeling of the vehicle and instructing pre-cooling or pre-heating based on the value, information on the occupant's cold / hot sensation is accurately detected using the pulse wave, and pre-cooling is performed appropriately. Or pre-heating can be commanded. Therefore, for example, by pre-air-conditioning (deciding whether or not) pre-air-conditioning by detecting whether the passenger before the ride feels hot or cold with high accuracy, the rider can quickly get comfortable Can do.

  A second calculating means for calculating a numerical value having a correlation with the stress of the human body from the pulse wave detected by the detecting means; and a first releasing means for releasing a sedative component provided in the air conditioning unit. And a second command unit that commands the first release unit to release a component having a sedative action when the numerical value calculated by the second calculation unit is a value indicating a predetermined high stress. Good.

  As a result, the occupant's portable device detects the occupant's pulse wave, calculates a value indicating the occupant's stress from the pulse wave, and releases a sedative component into the vehicle interior according to the value. It is possible to accurately detect occupant stress information using waves and release sedative components into the passenger compartment. Therefore, for example, by detecting whether or not the passenger before riding feels stress with high accuracy and performing pre-air conditioning (determining whether or not), it is possible to quickly bring the passenger on board into a comfortable state. .

  The numerical value calculated by the second calculating means may be an acceleration pulse wave.

  Thus, the occupant's pulse wave is detected, an acceleration pulse wave is calculated from the pulse wave, and pre-air conditioning is executed according to the stress evaluation value calculated from the acceleration pulse wave (determines whether or not). For example, as an example of a stress evaluation value calculation method, there is a calculation method using attractor forming means described in JP-A-2009-066017. Generally, when a person feels stress, the stress evaluation value calculated from the acceleration pulse wave increases accordingly, so the acceleration pulse wave information can be highly accurate information as to whether the occupant feels stress or not. . In the present invention, by effectively utilizing this property of the acceleration pulse wave, for example, a vehicle air conditioner that accurately acquires stress information of an occupant before boarding and releases a sedative component into the vehicle before boarding the occupant accordingly. A device can be realized.

  The numerical value calculated by the second calculating means may be a heart rate variability parameter.

  Thereby, the occupant's pulse wave is detected, an acceleration pulse wave is calculated from the pulse wave, a heart rate variability parameter is calculated from the acceleration pulse wave, and pre-air conditioning is executed accordingly (determines whether or not). Therefore, by detecting the degree of stress with high accuracy based on the degree of heart rate variability and effectively using that information, for example, the stress information of the occupant before boarding can be obtained with high accuracy, and the occupant before boarding the passenger accordingly. A vehicle air conditioner that releases a sedative component into the vehicle can be realized.

  Further, third calculation means for calculating a numerical value having a correlation with the sleepiness level of the human body from the pulse wave detected by the detection means, and second emission means provided in the air conditioning unit for releasing a component having an awakening action. And a third command means for commanding the second release means to release a component having a wakefulness action when the numerical value calculated by the third calculation means is a numerical value indicating a predetermined high sleepiness level. It is good.

  Thereby, the passenger's pulse wave is detected by the portable device carried by the occupant, a numerical value indicating the occupant's sleepiness level is calculated from the pulse wave, and the awakening component is released into the vehicle interior according to the numerical value, Information on the sleepiness level of the occupant can be detected accurately using the pulse wave, and the awakening component can be released into the passenger compartment. Therefore, for example, by detecting whether or not the occupant before boarding feels drowsy with high accuracy and performing pre-air conditioning (determining whether or not), the drowsiness of the occupant on board can be quickly eliminated.

  The numerical value calculated by the third calculating means may include a pulse pressure.

  Thus, the occupant's pulse wave is detected, the pulse pressure is calculated from the pulse wave, sleepiness is estimated according to the pulse pressure, and pre-air conditioning is executed according to the degree of sleepiness (determining whether or not). In general, when a person feels sleepy, the pulse pressure value tends to increase. Therefore, the pulse pressure information can be highly accurate information as to whether or not the occupant feels sleepy. In the present invention, by effectively utilizing this property of the pulse pressure, for example, a vehicle air conditioner that accurately obtains sleepiness information of an occupant before boarding and releases a wake component into the vehicle before boarding the occupant accordingly. Can be realized.

  The portable device may be a vehicle remote control key.

  Thus, by using the remote control key of the vehicle that is widely used today, it is possible to realize a vehicle air conditioner that is convenient for the user and that can appropriately perform pre-air conditioning of the vehicle at low cost.

  The numerical value calculated by the first calculating means may include a pulse rate.

  Thus, the occupant's pulse wave is detected, the pulse rate is calculated from the pulse wave, and pre-air conditioning is executed (determines whether or not) according to the pulse rate value. In general, when a human feels hot (cold), the pulse rate increases (lowers) accordingly, so the information on the pulse rate can be highly accurate information as to whether the occupant feels hot (cold). In the present invention, by effectively utilizing this property of the pulse rate, for example, a vehicle air conditioner that accurately acquires information as to whether or not the passenger before riding feels hot (cold) and pre-air-conditions accordingly. Can be realized.

  The numerical value calculated by the first calculating means may include a blood flow rate.

  Thus, the occupant's pulse wave is detected, the blood flow rate is calculated from the pulse wave, and pre-air conditioning is executed according to the numerical value of the blood flow rate (determining whether or not). In general, when a person feels hot (cold), the blood flow volume increases (decreases) accordingly, so the information on the blood flow volume can be highly accurate information as to whether the occupant feels hot (cold). In the present invention, by effectively utilizing this property of the blood flow rate, for example, a vehicle air conditioner that accurately acquires information as to whether or not the passenger before the ride feels hot (cold) and pre-air-conditions accordingly. Can be realized.

The block diagram of the vehicle air conditioner in embodiment of this invention. The figure which shows the structural example of an air-conditioner part. The flowchart which shows the example of air-conditioning control.

  Embodiments of the present invention will be described below with reference to the drawings. First, FIGS. 1 and 2 are schematic configuration diagrams of an air conditioning system 1 for a vehicle according to an embodiment of the present invention. The air conditioning system 1 may be installed in an automobile vehicle.

  As shown in FIG. 1, the air conditioning system 1 mainly includes an air conditioner ECU 2, a verification ECU 3, an air conditioner unit 4, and a remote control key 5 (portable machine). The air conditioner ECU 2 and the verification ECU 3 are connected by a multiplex communication bus 6 (bus) so that various kinds of information can be transferred.

  The air conditioner ECU 2 includes a CPU 200 for information processing such as various calculations, a RAM 201 as a work area of the CPU 200, and a nonvolatile memory 202 for storing various information. The air conditioner ECU 2 is connected to the multiplex communication bus 6 via the communication interface unit 203 (I / F). In the air conditioner ECU 2, the CPU 200, the RAM 201, the nonvolatile memory 202, the I / F 203, and the I / O 204 are connected by a bus so that information can be transferred.

  The air conditioner ECU 2 is connected to a temperature setting input unit 205 via an input / output unit 204 (I / O). The temperature setting input unit 205 is disposed, for example, in an air conditioner operation panel disposed in the lower part of the front panel of the instrument panel. An occupant such as a driver can perform setting input of a desired temperature by the temperature setting input unit 205.

  Further, the air conditioner ECU 2 is connected to the air outlet switching damper 400, the inside / outside air switching damper 401, and the air mix damper 402 via the I / O 204, and commands them to drive. The outlet switching damper 401 is a damper that determines the open / closed state of each outlet in order to switch the outlet (for example, face, foot, defroster) of the air conditioner in the passenger compartment.

  The inside / outside air switching damper 402 is a damper that switches between an inside air inlet for circulating air inside the vehicle and an outside air inlet for taking in air outside the vehicle. The air mix damper 402 is a damper that determines a mixing ratio between the cool air cooled by the evaporator and the warm air heated by the heater core 405 downstream thereof.

  Further, as shown in FIG. 2, the air conditioner unit 4 includes a blower fan 403, an evaporator 404, and a heater core 405. Air-conditioned air is formed by the rotation of the blower fan 403. In the evaporator 404, the refrigerant gas compressed by a compressor (not shown) driven by the engine of the vehicle is ejected into the evaporator 404 and vaporized, thereby depriving the surrounding heat. Thus, the evaporator 404 cools the air flow generated by the blower fan.

  The heater core 405 raises the temperature of the air flow using the heat of the cooling water that has been heated by cooling the engine. As described above, the evaporator 404 has a cooling function, and the heater core 405 has a heating function. As described above, the temperature adjustment is performed by determining the mixing ratio between the cool air cooled by the evaporator and the warm air heated by the heater core 405 according to the opening of the air mix damper 402.

  Further, the air conditioner unit 4 includes a sedative component discharge unit 406. The sedative component discharge unit 406 releases a component (sedative component) having an effect of sedating the occupant to the air discharged from the air conditioner into the passenger compartment. The sedative component may be, for example, a lavazine scent. The sedative component discharge unit 406 may be installed in a place suitable for mixing the sedative component, such as a place where an air flow sent into the vehicle interior passes through the air conditioner unit 4.

  Furthermore, the air conditioner unit 4 includes a wakefulness component release unit 407. The awakening component release unit 407 releases a component (wakefulness component) having an effect of awakening the occupant to the air released from the air conditioner into the passenger compartment. As the awakening component, for example, the scent of green tea (theanine) may be used. The wakefulness component releasing unit 406 may be installed in a place suitable for mixing the wakefulness component, such as a place where an air flow sent into the vehicle interior passes through the air conditioner unit 4. Note that at least one of the sedative component release unit 406 and the wakefulness component release unit 407 may be provided.

  The verification ECU 3 includes a CPU 300 for information processing such as verification processing, a RAM 301 as a work area of the CPU 300, and a ROM 302 for storing various information. The verification ECU 3 is connected to the multiplex communication bus 6 via the communication interface unit 303 (I / F). The wireless communication unit 304 is equipped for wireless communication with the remote control key 5. The verification ECU 3 is capable of exchanging information by connecting the CPU 300, RAM 301, ROM 302, I / F 303, and wireless communication unit 304 described above via a bus.

  The remote control key 5 includes a CPU 500, a RAM 501, a ROM 502, a wireless communication unit 503, a lock button 504, an unlock button 505, and a pre air conditioning button 506. The CPU 500 executes various types of information processing. A RAM 501 is a storage unit as a work area of the CPU 500. The ROM 502 is equipped to store various information.

  The wireless communication unit 503 is equipped for wireless communication with the verification ECU 3. The lock button 504 is a button that is pressed (turned on) when the vehicle occupant locks (locks) the vehicle door, and the unlock button 505 is used when the vehicle occupant unlocks (unlocks) the vehicle door. This button is pressed (ON operation). The pre-air conditioning button 506 is a button that is pressed (ON operation) when a vehicle occupant commands pre-air conditioning from outside the vehicle or in the vehicle interior.

  The collation process between the collation ECU 3 and the remote control key 5 is executed as follows. The wireless communication unit 304 of the verification ECU 3 wirelessly transmits a polling signal (request signal) for requesting a reply of the identification signal toward the space around the vehicle. When the remote control key 5 is within the polling signal reachable range, the wireless communication unit 503 receives the polling signal.

  The remote control key 5 that has received the polling signal transmits an identification signal (ID code) stored in the ROM from the wireless communication unit 503, for example. The wireless communication unit 304 of the verification ECU 3 receives the identification signal transmitted from the remote control key 5. For example, it is assumed that the ROM 302 stores a master signal (master ID, reference signal) for collation with an identification signal transmitted from the remote control key 5. Then, the collation ECU 3 collates the received ID code with the master ID, and ends the collation if they match. If the verification is OK, the user presses the unlock button 506 to unlock the vehicle door.

  The pre-air conditioning button 506 also serves as a photoelectric pulse wave sensor. The photoelectric pulse wave sensor is a sensor that detects a pulse of a human body by a photoelectric method, and a specific detection principle is as follows. First, light (electromagnetic wave, mainly infrared light) is irradiated to the human body from the photoelectric pulse wave sensor, and the photoelectric pulse wave sensor receives the reflected light (or transmitted light). In the human body that has received the light emitted from the photoelectric pulse wave sensor, light is absorbed by hemoglobin in the blood flow of the human body.

  As a result, the intensity of reflected light (or transmitted light) also pulsates as the blood flow of the human body pulsates. In the photoelectric pulse wave sensor, the pulse waveform (pulse wave) of the human body is detected by detecting the pulsation of the intensity of the reflected light (or transmitted light) by the pulse wave detection circuit. When the occupant depresses the pre-air conditioning button 506 (ON operation), the above principle works on the fingertip that touches, and a pulse (waveform) is detected.

  From the detected pulse waveform, the pulse rate (per unit time) can be calculated. In addition, from the above principle, for example, a large (small) amplitude value of a pulse waveform has a correlation with a small (large) blood flow rate. Therefore, for example, the blood flow rate can be calculated from the amplitude value of the pulse waveform.

  Thus, in the present invention, the pulse rate and blood flow are calculated from the detected pulse waveform. This calculation may be performed by the CPU 500 of the remote control key 5 or by the CPU 300 of the verification ECU 3. In the former case, the pulse rate and blood flow values are wirelessly transmitted from the remote control key 5 to the verification ECU 3. In the latter case, the pulse waveform is wirelessly transmitted from the remote control key 5 to the verification ECU 3.

  With the above configuration, the air conditioning system 1 acquires information (pulse rate, blood flow rate, acceleration pulse wave) related to the physical condition of the occupant before boarding using the remote control key 5, and based on the information. To perform pre-air conditioning (determining whether or not). The processing procedure is shown in FIG. The processing procedure in FIG. 3 may be programmed and stored in advance in, for example, the non-volatile memory 202, and the CPUs 200, 300 (, 500) may cooperate to automatically execute them. Below, the example in case a passenger | crew has not boarded is demonstrated.

  In the process of FIG. 3, first, the pulse rate and blood flow rate of the occupant outside the vehicle compartment are obtained using the remote control key 5 in S10. Specifically, an occupant outside the passenger compartment presses (contacts) the pre-air conditioning button 506 of the remote control key 5 that is carried.

  As described above, since the pre-air conditioning button 506 also serves as a photoelectric pulse wave sensor, a pulse wave is detected from the fingertip of an occupant in contact with the pre-air conditioning button 506. Then, the pulse rate and blood flow are calculated from the pulse wave. The calculation of the pulse rate and the blood flow volume may be executed by the CPU 500 of the remote control key 5. In this case, the calculated pulse rate and blood flow rate are transmitted to the verification ECU 3 by the wireless communication unit 503.

  Further, the calculation of the pulse rate and the blood flow volume may be executed by the CPU 300 of the verification ECU 3. In this case, a pulse wave is transmitted from the wireless communication unit 503 of the remote control key 5, and the verification ECU 3 receives the pulse wave, and then the CPU 300 calculates the pulse rate and blood flow volume.

  Next, in S20, it is determined whether or not the pulse rate and the blood flow volume are equal to or more than a predetermined value for the (pre) cooling command set for each. Specifically, at least one (or both) of the pulse rate being equal to or greater than a predetermined value for the (pre) cooling command and the blood flow being equal to or greater than the predetermined value for the (pre) cooling command. What is necessary is just to determine whether it is satisfy | filled. If this condition is satisfied (S20: YES), the process proceeds to S40, and if not satisfied (S20: NO), the process proceeds to S30.

  In general, when a human feels hot (cold), the pulse rate increases (lowers) accordingly, so the information on the pulse rate can be highly accurate information as to whether the human feels hot (cold). In general, when a human feels hot (cold), the blood flow volume increases (decreases) accordingly, so the information on the blood flow volume can be highly accurate information as to whether the occupant feels hot (cold). Therefore, when it progresses to S40, it is considered that the passenger | crew before boarding feels hot. Therefore, in S40, the CPU 200 commands (pre) cooling.

  Next, in S30, it is determined whether or not the pulse rate and the blood flow rate are equal to or less than a predetermined value for the (pre) heating command set for each. The predetermined value for the (pre) heating command may be a value larger than the predetermined value for the (pre) cooling command. Specifically, in S30, at least one (or both) of the pulse rate being equal to or less than a predetermined value for the (pre) heating command and the blood flow being equal to or less than the predetermined value for the (pre) heating command. ) Is satisfied.

  When this condition is satisfied (S30: YES), the process proceeds to S50, and when not satisfied (S30: NO), the process proceeds to S60. The case where the process proceeds to S50 is a case where it is considered that the occupant before boarding feels cold for the reason described above. Therefore, in S50, the CPU 200 commands (pre) heating. Thus, pre-air conditioning (pre-cooling, pre-heating) is commanded in S40 and S50. As a result, the air conditioning in the vehicle is already adjusted to a comfortable state when the passenger gets on.

  The predetermined values used in the above S20 and S30 are set as numerical values that clearly deviate from those values by storing the pulse rate and blood flow volume in a normal state (that is, the passenger does not feel hot or cold). That's fine. In this case, for example, the ROM 202 is equipped so as to include an EEPROM, the occupant's past pulse rate and blood flow volume are stored therein, the normal pulse rate and blood flow range are calculated therefrom, and the upper limit value is calculated. The lower limit value may be a predetermined value used in S20 or S30.

  Next, an acceleration pulse wave is calculated in S60. The acceleration pulse wave can be calculated by calculating the second derivative with respect to the time of the pulse wave waveform detected in S10. Subsequently, in S70, a stress evaluation value corresponding to the acceleration pulse wave is calculated. For example, as an example of a stress evaluation value calculation method, there is a calculation method using attractor forming means described in JP-A-2009-066017.

  Alternatively, the stress evaluation value may be a numerical value (heart rate variability parameter) indicating heart rate variability. In general, human heart rate (per unit time) fluctuates periodically (heart rate variability, or heart rate variability, HRV: Heart Rate Variability). Become. Therefore, a heart rate variability parameter that is a parameter indicating the degree of regularity (or irregularity) of heart rate variability can be a stress evaluation value. Examples of the heart rate variability parameter include variation (dispersion value) of frequency components of the time waveform of the heart rate, a difference value between the maximum frequency and the minimum frequency, and the like.

  In the stress evaluation values exemplified above, the magnitude of the stress felt by the human body is indicated by the magnitude of the value, so that the information of the stress evaluation value can be highly accurate information as to whether or not a person feels stress.

  Next, in S80, it is determined whether or not the stress evaluation value is greater than or equal to a predetermined value. When the stress evaluation value is greater than or equal to the predetermined value (S80: YES), the process proceeds to S90, and when the stress evaluation value is less than the predetermined value (S80: NO), the process proceeds to S100.

  In S90, the sedative component is released into the vehicle in which the passenger is not in the vehicle. As described above, this process may be executed by releasing a sedative component (for example, lavazine) from the sedative component releasing unit 406. As a result, when the occupant feels stress, the sedative component has already been released into the vehicle when the occupant is on board, and an effect of immediately reducing the occupant's stress can be obtained.

  Subsequently, the pulse pressure is calculated in S100. The pulse pressure may be calculated from the pulse wave obtained in S10. In general, it is known that the higher the human sleepiness level, the higher the pulse pressure accordingly, and the pulse pressure information can be highly accurate information on the human sleepiness level.

  In S110, it is determined whether or not the sleepiness level indicated by the pulse pressure obtained in S100 is equal to or higher than a predetermined value. When the sleepiness level is equal to or greater than the predetermined value (S110: YES), the process proceeds to S120, and when the sleepiness level is less than the predetermined value (S110: NO), the process of FIG.

  In S120, the awakening component is released into the vehicle where the passenger is not in the vehicle. As described above, this process may be executed by releasing a wake component (for example, theanine) from the wake component release unit 407. As a result, when the occupant feels sleepy, the awakening component has already been released into the vehicle when the occupant gets on, and an effect of immediately reducing the occupant's sleepiness can be obtained. The above is the processing procedure of FIG.

  As described above, according to the present invention, a plurality of pieces of information such as a feeling of coldness of the occupant, stress, and drowsiness level are acquired from one pulse wave, which is efficient information acquisition. Similar to the calculation of the pulse rate and blood flow, the stress evaluation value (heart rate variability parameter), sleepiness level (pulse pressure), etc. may be calculated by the CPU 500 of the remote control key 5 or the CPU 300 of the verification ECU 3. Good.

  The above-described example is merely one embodiment of the present invention, and can be appropriately changed within the scope of the gist of the present invention. For example, although the pre-air conditioning button 506 is provided in the above, for example, a form modified such that the function of the pre-air conditioning button 506 is provided to the unlock button 505 may be used. In addition, the sedative component described above is not limited to a component that has been proven to have a sedative effect in a strict sense, and may be spread to a component having a scent that the passenger feels comfortable, that is, a fragrance in general. The remote control key 5 may be changed to another portable device (such as a cellular phone) carried by the passenger.

  The release of the sedative component and the release of the wakeful component in FIG. 3 may be modified so that only one of them is executed. In the above-described embodiment, the example in which the flowchart of FIG. 3 is executed in a state where no occupant is in the vehicle is shown. However, the present invention is not limited to this, and the flowchart in FIG. It may be executed even in an off state.

1 Vehicle air conditioning system 2 Air conditioner ECU
3 verification ECU
4 Air conditioning unit 5 Remote control key

Claims (9)

An air conditioning unit provided in the vehicle for adjusting the air conditioning in the passenger compartment;
A portable device that can be carried outside the vehicle compartment and wirelessly communicated with the air conditioning unit;
A detecting means provided in the portable device for detecting a pulse wave of a human body in contact with the portable device;
First calculation means for calculating a numerical value having a correlation with a sense of coldness of the human body from the pulse wave detected by the detection means;
When the numerical value calculated by the first calculating means is a numerical value indicating that the person feels heat, the air conditioning unit is instructed to cool, and the numerical value calculated by the first calculating means indicates that the air feels cold. First command means for commanding heating to the air conditioning unit when the numerical value is indicated;
A vehicle air conditioner comprising: Second calculating means for calculating a numerical value having a correlation with human stress from the pulse wave detected by the detecting means;
A first release means provided in the air conditioning unit for releasing a sedative component;
Second instruction means for instructing the first release means to release a component having a sedative action when the numerical value calculated by the second calculation means is a numerical value indicating a predetermined high stress;
The vehicle air conditioner according to claim 1, comprising:   The vehicle air conditioner according to claim 2, wherein the numerical value calculated by the second calculation means is an acceleration pulse wave.   The vehicle air conditioner according to claim 2, wherein the numerical value calculated by the second calculating means is a heart rate variability parameter. Third calculation means for calculating a numerical value having a correlation with the sleepiness level of the human body from the pulse wave detected by the detection means;
A second release means provided in the air conditioning unit for releasing a component having a wakefulness;
Third instruction means for instructing the second release means to release a component having a wakefulness when the numerical value calculated by the third calculation means is a numerical value indicating a predetermined high sleepiness level;
The vehicle air conditioner according to any one of claims 1 to 4, further comprising:   The vehicle air conditioner according to claim 5, wherein the numerical value calculated by the third calculating means includes a pulse pressure.   The vehicle air conditioner according to any one of claims 1 to 6, wherein the portable device is a vehicle remote control key.   The vehicle air conditioner according to any one of claims 1 to 7, wherein the numerical value calculated by the first calculating means includes a pulse rate.   The vehicle air conditioner according to any one of claims 1 to 8, wherein the numerical value calculated by the first calculating means includes a blood flow rate.

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