JP2019033911A - Abnormality detection device and seat - Google Patents

Abstract

To reduce a manufacturing cost and perform quick determination in an abnormality detection device for monitoring a health condition of an occupant by detecting biological information of the occupant by using a plurality of types of detection means.SOLUTION: An abnormality detection device 10 includes: first detection means detecting a condition of an occupant and calculating a first detection value based on the detected condition; second detection means detecting the condition of the occupant by a method different from that of the first detection means and calculating a second detection value based on the detected condition; first determination means for determining whether the occupant is abnormal or not on the basis of the first detection value: second determination means for determining whether the occupant is abnormal or not on the basis of the second detection value; and third determination means finally determining whether the occupant is abnormal or not on the basis of at least one of the determination by the first determination means and the determination by the second determination means.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an abnormality detection device and a seat provided in a vehicle.

  If the health condition of the driver driving the vehicle deteriorates, it may adversely affect the driving of the vehicle. Therefore, it is desirable to detect the deterioration of the health condition in advance and take some measures. As a countermeasure, biological information such as blood flow and blood pressure is detected based on measurement results such as pulse waves from a non-contact blood flow sensor that is embedded in the seat and back of the seat. A technique for estimating and grasping the health condition of a driver is known (see Patent Documents 1 and 2).

JP, 2006-190022, A Japanese Unexamined Patent Publication No. 2006-077780

As described in Patent Document 2, if the blood pressure is obtained based on information obtained from the camera and the sensor, the processing becomes complicated and the manufacturing cost of the device increases.
Further, since the process becomes complicated, the determination of whether or not the blood pressure value is normal is delayed. For this reason, for example, the occupant falls into a serious state before judging that the health condition of the occupant who is driving is abnormal, and the occupant may erroneously drive and cause an accident.

  The present invention has been made in view of the above problems, and in an abnormality detection device that monitors the health state of an occupant by detecting the occupant's biological information using a plurality of types of detection means, while reducing manufacturing costs, The purpose is to enable quick judgment.

In order to solve the above problems, the invention according to claim 1 is an abnormality detection device,
First detection means for detecting the state of the occupant;
Second detection means for detecting the state of the occupant by a method different from the first detection means;
First determination means for determining the presence or absence of an occupant abnormality based on the state detected by the first detection means;
Second determination means for determining the presence or absence of an occupant abnormality based on the state detected by the second detection means;
And third determination means for finally determining the presence or absence of an abnormality of the occupant based on at least one of the determination by the first determination means and the determination by the second determination means.

Invention of Claim 2 is the abnormality detection apparatus of Claim 1, Comprising:
The third judging means adopts a judgment result by the earlier judging one of the first judging means and the second judging means as a final judgment.

Invention of Claim 3 is an abnormality detection apparatus of Claim 1, Comprising:
The third determination means finally determines whether there is an abnormality based on both the determination result by the first determination means and the determination result by the second determination means.

Invention of Claim 4 is an abnormality detection apparatus as described in any one of Claim 1 to 3, Comprising:
Of the first judgment means and the second judgment means, the judgment means with the later judgment corrects the judgment condition for the presence or absence of abnormality based on the judgment result of the judgment means with the earlier judgment. .

Invention of Claim 5 is an abnormality detection apparatus as described in any one of Claim 1 to 4, Comprising:
When at least one of the first determination unit, the second determination unit, and the third determination unit determines that there is an abnormality, it includes an alerting unit that alerts the occupant.

Invention of Claim 6 is an abnormality detection apparatus of Claim 5, Comprising:
The alerting means performs a first alert when the earlier judgment means determines that there is an abnormality, and a second alert occurs when the later judgment means determines that there is an abnormality It is characterized by.

The invention according to claim 7 is the abnormality detection device according to any one of claims 4 to 6,
The first detection means and the second detection means are configured to detect the detected occupant state as a numerical value,
The first determination means and the second determination means determine whether there is an abnormality depending on whether the detected numerical value is within a predetermined numerical value range, or whether the numerical value exceeds a predetermined threshold value. Configured,
The determination means with the slower determination corrects the numerical value range or the threshold based on the determination result of the determination means with the earlier determination.

Invention of Claim 8 is an abnormality detection apparatus of Claim 7, Comprising:
The judgment means with the slower judgment is characterized in that the numerical value range is narrowed or the threshold value is corrected so as to be away from the previous detection value.

Invention of Claim 9 is an abnormality detection apparatus of Claim 7, Comprising:
The judgment means having the slower judgment is characterized in that the numerical value range is expanded or the threshold value is corrected so as to approach the previous detection value.

Invention of Claim 10 is an abnormality detection apparatus as described in any one of Claim 1-9, Comprising:
A plurality of first detection means and second detection means, respectively,
The first determination means and the second determination means are at least two detection values of a plurality of first detection values detected by the first detection means and a plurality of second detection values detected by the second detection means. Based on the above, the presence or absence of an abnormality is determined.

Invention of Claim 11 is an abnormality detection apparatus as described in any one of Claim 1 to 10, Comprising:
The first detection means includes
Having a camera that takes images of the crew,
The first detection value is obtained from a photographed image.

The invention according to claim 12 is the abnormality detection device according to any one of claims 1 to 11,
The second detection means has a biological sensor that detects biological information of at least one of body temperature, pulse, blood pressure, respiratory rate, blood glucose level, and electroencephalogram,
The second detection value is obtained from the detected biological information.

The invention according to claim 13 is the abnormality detection device according to claim 11 or 12,
The first determination means determines whether there is an abnormality based on the first detection value and the second detection value.

Invention of Claim 14 is an abnormality detection apparatus of Claim 12 or 13, Comprising:
Comprising a third detection means for detecting a change in the state of the occupant during a predetermined period;
The first determination means or the second determination means corrects the determination condition for the presence or absence of abnormality based on the change in the state detected by the third detection means.

The invention according to claim 15 is a sheet,
The biological sensor according to claim 12 is provided.

According to the first aspect of the invention, since the final determination is made based on the determination results of the first and second determination means, a plurality of numerical values obtained from the respective detection means are calculated to make one determination. Since it is possible to determine the presence / absence of an abnormality with a simple process compared to the case of performing the above, it is possible to reduce the manufacturing cost of the apparatus.
In addition, since the determination mechanism is simple, it is possible to make a quick determination.

  According to the second aspect of the present invention, when an abnormality occurs in the health state of the occupant, it is possible to promptly notify the occupant and the passenger.

  According to the third aspect of the present invention, it is possible to more accurately determine the presence or absence of an abnormality than when a final determination is made with only one determination means.

  According to the fourth aspect of the present invention, it is possible to speed up the judgment by the later judgment means or to make a more careful judgment.

  According to the fifth aspect of the present invention, it is possible for the occupant who has received the alert and the passenger to prepare for the case when the occupant suddenly loses physical condition.

  According to the sixth aspect of the present invention, since the second alerting is performed twice, an occupant who is not conscious of the first alerting is also careful.

  According to the invention described in claim 7, since it is possible to determine the presence or absence of abnormality only by comparing numerical values, the apparatus can be made simpler and quicker.

  According to the eighth aspect of the present invention, it is easy to determine that the detection value obtained thereafter is out of the numerical value range or exceeds the threshold value, so that it is possible to detect an abnormality at an earlier stage.

  According to the invention described in claim 9, since it becomes easier to determine that the detection value obtained thereafter is within the numerical range or does not exceed the threshold value, it is determined that there is an abnormality when the abnormality occurs more reliably. Therefore, the presence / absence of abnormality can be determined more accurately.

  According to the tenth aspect of the invention, it is possible to adjust the accuracy of the determination of the presence or absence of abnormality by changing the combination of detection values used according to the passenger's preference.

  According to the eleventh aspect of the present invention, blood pressure and heart rate are obtained from the color of the occupant's skin, whether or not he / she is sleeping due to whether the heel is open, It is possible to determine whether or not the person is attacked by drowsiness.

  According to the twelfth aspect of the present invention, body temperature, pulse, blood pressure, and respiratory rate are basic biological information, and by measuring any of these, it is possible to grasp the health condition of the occupant relatively accurately. It becomes.

  According to the thirteenth aspect of the present invention, the second detection value is used when, for example, the image is too dark to be photographed by the camera as the first detection unit and accurate determination by the first determination unit becomes difficult. Can also be used to supplement the determination by the first determination means and make it accurate.

  According to the fourteenth aspect of the present invention, it is possible to suppress erroneously determining that there is an abnormality by changing the numerical value range or threshold value of the biological information by an amount corresponding to the state change.

  According to the fifteenth aspect of the present invention, since the living body sensor is positioned in the vicinity of the occupant, it is possible to detect the occupant state more accurately.

It is a block diagram showing the structure of the abnormality detection apparatus which concerns on 1st, 2nd embodiment of this invention. It is the schematic when the passenger | crew room of a vehicle provided with the abnormality detection apparatus of FIG. 1 is seen from back. It is a side view of the sheet | seat provided with the abnormality detection apparatus of FIG. It is a conceptual diagram showing the judgment of the presence or absence of abnormality in the abnormality detection apparatus of FIG. It is a block diagram showing the structure of the abnormality detection apparatus which concerns on the modification of the embodiment.

<First Embodiment>
First, a schematic configuration of the abnormality detection device according to the first embodiment of the present invention will be described. FIG. 1 is a block diagram of the abnormality detection device 10, FIG. 2 is a schematic view of the passenger compartment of a vehicle 100 provided with the abnormality detection device 10 when viewed from the rear, and FIG. 3 is a seat 200 provided with the abnormality detection device 10. FIG.
In FIG. 2, a passenger car is illustrated as the passenger compartment of the vehicle 100. However, the present invention is applicable to other automobiles such as buses and trucks, as well as railways, ships, airplanes, and the like. It can also be applied to vehicles other than automobiles.

The abnormality detection device 10 according to the present embodiment is provided in the vehicle 100 and is for monitoring whether or not an abnormality has occurred in the health state of the occupant. As shown in FIG. 1, the abnormality detection device 10 includes a first detection unit 1, a second detection unit 2, a notification unit 3, a device main body 4, and the like.
These are connected to be communicable by wire or wireless. In the case of wired connection, a wire harness arranged on the vehicle may be used, or a dedicated wiring may be provided. On the other hand, in the case of wireless connection, it is preferable to use near field communication such as Bluetooth (registered trademark).

The 1st detection part 1 is for detecting the state of the passenger | crew containing biometric information, and is comprised with the camera in this embodiment. The camera may be either a still camera that captures still images or a video camera that captures video, but it is a video camera because the occupant must keep shooting while the occupant is in the vehicle. Is preferred.
The first detection unit 1 may be a dedicated device or a commercially available camera with a communication function.
The power of the first detection unit 1 and the connection method with the apparatus main body 4 are not particularly limited. However, since the first detection unit 1 is expected to be used for a long time, it is connected to the apparatus main body 4 with a wire. It is preferable that power is supplied from the apparatus body 4.

The first detection unit 1 starts shooting based on the reception of a control signal from the apparatus main body 4 or ends shooting that has been performed.
The first detection unit 1 is configured to transmit image data of a captured image to the apparatus main body 4.

Moreover, the 1st detection part 1 can be provided with one or more with respect to one vehicle.
Although the installation location of the 1st detection part 1 depends on the kind of vehicle, it will not be specifically limited if it is a position which can image | photograph a passenger | crew.
When the vehicle is an automobile, for example, as shown in FIG. 2, it is conceivable to provide the rear mirror 110, the ceiling 120, the instrument panel 130, the door 140, etc. so that the rear side can be photographed.
In addition, although the case where the 1st detection part 1 was provided only around the driver's seat was illustrated in FIG. 2, you may make it provide around other seats, such as a passenger seat.
In addition, when the vehicle to which the present invention is to be applied is provided with a plurality of seats arranged in the front-rear direction, it can be provided on the back surface of the front seat so that the direction of the rear seat can be photographed. .

The second detection unit 2 detects the occupant's state by a method different from that of the first detection unit 1. In the present embodiment, at least one of the biological information of the occupant's body temperature, pulse, blood pressure, respiratory rate, etc. is obtained by directly contacting the occupant or information obtained from the occupant (reflected or transmitted light or electromagnetic waves). Etc.) is indirectly detected.
The second detection unit 2 may be configured as a dedicated device, or may have a communication function mounted on a commercially available blood pressure meter, thermometer, biological sensor, or the like.

When the second detection unit 2 detects the state indirectly, the occupant receives light, pressure wave (sound wave or electromagnetic wave), vibration or the like based on the reception of the control signal from the apparatus body 4. It is configured to output in the direction of. Here, electromagnetic waves mean electromagnetic waves in a broad sense including radio waves and microwaves of about 100 MHz, infrared light, visible light, ultraviolet light, X-rays, etc., and are suitable in a range that does not adversely affect the human body. Electromagnetic waves are used.
Further, in this case, the second detection unit 2 is configured to detect light reflected by the occupant's body surface or transmitted through the occupant, pressure waves, and the like. If it does in this way, since it becomes unnecessary to contact the passenger | crew, the 2nd detection part 2 can be provided in a comparatively free position.

Further, the second detection unit 2 calculates a second detection value (the first detection value will be described later) based on the detected information. The calculation of the second detection value may be performed by the control unit 41 of the apparatus main body 4 described later.
Further, the second detection unit 2 receives a control signal instructing the start of measurement from the apparatus main body 4 and transmits the calculated second detection value to the apparatus main body 4.

  In addition, although the electric power of the 2nd detection part 2 and the connection system with the apparatus main body 4 are not specifically limited, The 2nd detection part 2 continues detecting a passenger | crew's state, while the vehicle is drive | working. Therefore, it is preferable that the apparatus main body 4 is connected to the apparatus main body 4 in a wired manner so that power is supplied from the apparatus main body 4.

Further, one or more second detection units 2 can be provided for one sheet 200.
Although the mounting position of the second detection unit 2 is not particularly limited, as shown in FIG. 3, a portion of the seat 200 adjacent to the seated occupant, that is, the upper surface layer portion of the seat bottom 210, the seat back The front surface layer portion 220 or the front surface layer portion of the headrest 230 is preferably used from the viewpoint of transmitting light, electromagnetic waves, and the like emitted from the second detection unit 2 without being attenuated.
In addition, when the seat 200 includes an ottoman, a footrest, a necklace, or the like (not shown), the seat 200 may be provided.

The alerting | reporting part 3 is comprised with a monitor, a speaker, a vibrator, etc., for example. And based on the control signal received from the apparatus main body 4 mentioned later, the presence or absence of abnormality is alert | reported to a passenger | crew by a display, an audio | voice, a vibration, etc.
In the case where the notification unit 3 is a vibrator, it is preferably provided in a portion of the seat 200 close to the seated occupant so that vibration is easily transmitted.

On the other hand, when the alerting | reporting part 3 is comprised with a monitor, it is preferable to provide in the position where a to-be-measured person is easy to visually recognize. Specifically, it may be provided in front of the seat 200 (in the case of an automobile, the instrument panel 130, or in the case where a plurality of seats arranged in the front-rear direction are provided).
Further, if the notification unit 3 is configured by a monitor, an image taken by the first detection unit 1 and a detection value can be displayed as necessary in addition to the notification of the occurrence of abnormality. In this way, even if there is no abnormality, the current state of the occupant can be confirmed.

As shown in FIG. 1, the apparatus main body 4 includes a control unit 41, a communication unit 42, a storage unit 43, and the like.
The control unit 41 is configured to centrally control the operation of each unit of the apparatus main body 4 with a CPU, a RAM, and the like. Specifically, the data is stored in the storage unit 43 based on the fact that the vehicle engine has been started, that the occupant has been seated on the seat, a signal received from the first detection unit 1 or the second detection unit 2, and the like. The various processing programs that have been read out are loaded into the RAM, and various types of processing are executed in accordance with the processing programs.

  The communication unit 42 transmits a control signal to the first detection unit 1 and the second detection unit 2, receives image data from the first detection unit 1, and receives a second detection value from the second detection unit 2. It is possible to transmit a control signal to the notification unit 3, and to transmit / receive a control signal to / from a control device (not shown) of the vehicle 100.

The storage unit 43 is configured by an HDD (Hard Disk Drive), a semiconductor memory, or the like. The storage unit 43 stores various processing programs, predetermined threshold values and numerical ranges used for executing the programs.
The threshold is, for example, the ratio of the area of the pupil (number of pixels with a low density value) that can be regarded as an open state in the area recognized as eyes, the distance between the upper and lower eyelids, or the area recognized as the head The moving distance, the upper limit value of the moving speed, and the like that can be regarded as the normal range are stored.

The numerical range corresponds to an item measured by the second detection unit 2 and a measurement item when the first detection unit 1 detects biological information, and a standard value (so-called normal value) in the measurement item is stored. Has been. Note that a plurality of types of numerical ranges corresponding to a plurality of measurement items may be stored and switched according to the second detection unit 2 to be connected.
The storage unit 43 can store detection values received from the first detection unit 1 and the second detection unit 2.

The control unit 41 of the apparatus body 4 configured as described above operates as follows according to the processing program stored in the storage unit 43.
For example, the control unit 41 sends a signal for instructing the start of shooting via the communication unit 42 based on the operation of the occupant, the vehicle engine being started, the occupant sitting on the seat, etc. The data is transmitted to the first detection unit 1.
In addition, the control unit 41 transmits a signal instructing the start of measurement to the second detection unit 2 at predetermined time intervals via the communication unit 42 after or simultaneously with the transmission of the signal instructing the start of imaging. It is designed to send repeatedly.

Moreover, the control part 41 calculates | requires a 1st detected value from the state of the detected passenger | crew. Specifically, biological information such as a pulse wave is directly extracted from the image data received from the first detection unit 1, or eyes or a head are recognized from the image. The ratio of black pixels), the time change of the distance between the upper and lower eyelids, the moving speed when the head moves, and the like are calculated. That is, the control unit 41 constitutes a first detection unit in the present invention.
The first detection value may be calculated in the first detection unit 1.

Moreover, the control part 41 judges the presence or absence of abnormality based on the image | photographed image. Specifically, the determination is made by comparing the obtained first detection value with a corresponding threshold value or numerical value range.
When using the area of the pupil or the distance between the upper and lower eyelids for judgment, etc., when the state where the first detection value is less than the threshold value continues for a predetermined time, the eyelid is closed, that is, doze or poor physical condition Is determined to be suspected.
On the other hand, when the head movement is used for the judgment, if the first detection value is greater than or equal to the threshold value, the neck is bent at an abnormally high speed, so that a state of suicidal or reduced consciousness is suspected. Judge that there is.

On the other hand, when detecting biological information from image data, a blood pressure value, a respiration rate, etc. are calculated | required as a 1st detection value, and the presence or absence of abnormality is judged by whether a 1st detection value is in a numerical value range.
By performing such processing, the control unit 41 serves as a determination unit (first determination unit) in the present invention.

  Moreover, whenever the control part 41 receives the 2nd detection value from the 2nd detection part 2, it compares with the predetermined | prescribed numerical value range R (refer FIG. 4) previously stored in the memory | storage part, and a 2nd detection value is If it is within the numerical range R, it is determined that there is no abnormality, and if it is outside the numerical range R, it is determined that there is some abnormality. That is, the second detection unit 2 and the control unit 41 function as determination means (second determination means) in the present invention. By doing so, it is possible to correct the determination condition with a relatively simple program (mechanism).

In addition, the control unit 41 determines the presence or absence of a final abnormality using at least one of the determination based on the first detection value and the determination based on the second detection value. That is, in this embodiment, when making a final determination based on both the determination based on the first detection value and the determination based on the second detection value, and when making a final determination based on either one There is.
In the present embodiment, it is based on making a final determination based on both determinations, but depending on the user's operation and the items detected by the detection units 1 and 2, the determination based on both, It is good also as a structure which presets either of the judgment based on.
A case where a final determination is made based on one of the determinations will be described later.

The control unit 41 determines that there is no abnormality when both the determination based on the first detection value and the determination based on the second detection value are normal, and that there is an abnormality when both are abnormal.
Here, there may be a case where the determination based on the first detection value is different from the determination based on the second detection value. Therefore, the apparatus main body 4 (a) finally determines that there is an abnormality if one is normal but the other is abnormal, and (b) finally determines that there is no abnormality if one is abnormal but the other is abnormal. , One is to be selected. In this way, when (a) is selected, it is easy to determine that there is an abnormality, so that the health condition of the occupant can be monitored more carefully. On the other hand, when (b) is selected, since it is easy to determine that there is no abnormality, it is possible to prevent the passenger from feeling uneasy more than necessary.

  As a setting when the judgment based on the first detection value is different from the judgment based on the second detection value, (c) regardless of the judgment result, priority is given to the judgment based on the first detection value (second detection value). It may be possible to select to adopt.

  If there is almost no difference between the first detection value and the upper or lower limit or threshold value of the numerical range, and there is a possibility that the determination based on the first detection value may not be performed accurately, the second detection value is used. You may make it judge. For example, if the occupant who is driving has fallen asleep while slightly opening the eyelids, it is dark at night, the sun is strong, etc. It may be difficult to determine whether it is closed or closed. In such a case, if the second detection value is used, it is possible to accurately detect whether or not the patient is asleep by determining whether or not a decrease in blood pressure or heart rate due to sleep is observed. That is, the determination based on the first detection value is supplemented by the second detection value.

In addition, when the first detection value or the second detection value deviates extremely from the numerical range or the threshold value, the control unit 41 first performs the determination based on the first detection value and the determination based on the second detection value. The determined judgment is adopted as the final judgment result. Specifically, for example, an upper threshold value T _U (see FIG. 4) that is higher than the upper limit of the numerical value range by a predetermined value and a lower threshold value T _L that is lower than the lower limit of the numerical value range by a predetermined value are set. In the determination, when it is determined that the detected value is outside the numerical range R, the detected value is compared with predetermined threshold values T _U and T _L stored in advance in the storage unit, and the detected value is the upper limit and the upper threshold value T of the numerical range R. _If it is between _U or the lower limit of the numerical range R and the lower threshold _TL , it is determined that the first abnormality has occurred (the possibility of abnormality is high) and waits for the subsequent determination to be made. if below the than above or below the threshold T _L than the detected value is above the threshold T _U, the first anomaly second abnormality higher level than occurs (possibility of abnormality is large) and Judgment is made so that the final judgment result is obtained without waiting for later judgment. By doing so, it becomes possible to detect the occurrence of a serious abnormality more quickly and suppress the occurrence of an accident.

Further, the control unit 41 corrects the determination condition (numerical value range, threshold value) for the presence / absence of abnormality based on the earlier determination result when performing the later determination.
For example, according to the user's operation, the correction can be performed by either (A) narrowing the numerical value range or bringing the threshold value closer to the previous detection value, or (B) expanding the numerical value range or moving the threshold value away from the previous detection value. You can choose either. In this way, when (A) is selected, it becomes easier to determine that there is an abnormality, so it is possible to detect an abnormality of the occupant earlier and more carefully monitor the occupant's health condition. It becomes possible to do. On the other hand, when (B) is selected, it is easily determined that there is no abnormality, so that it is possible to suppress the passenger from feeling excessively uneasy.

In addition, when the control unit 41 determines that there is an abnormality, the control unit 41 transmits a signal for notifying the fact to the notification unit 3.
Thereby, since the alerting | reporting part 3 alerts (for example, alerting | reporting that abnormality has generate | occur | produced etc.) when abnormality generate | occur | produces, a passenger | crew's attention is alerted. That is, the alerting | reporting part 3 and the control part 41 function as an alerting means in this invention.
Even when no abnormality has occurred, the notification unit 3 may perform some display or audio output.

  In addition, the signal for performing the first alert is transmitted to the notification unit 3 when there is an abnormality in the earlier judgment, and the first alert is issued when there is an abnormality in the later judgment. Alternatively, a signal for performing strong second alerting (such as guidance to refrain from driving) may be transmitted to the notification unit 3. If it does in this way, it will become possible to alert | report a passenger | crew quickly that abnormality generate | occur | produced in the passenger | crew's health state by 1st alerting. In addition, since the alerting is performed twice by the second alerting, an occupant who is not conscious of the first alerting will also be careful.

Further, the communication unit 42 is configured to be communicable with a mobile terminal (not shown), and the control unit 41 determines that the detected value has exceeded the threshold value T _U , T _L farther from the numerical value range R (the alerting means 2), a control signal instructing to contact the emergency contact may be transmitted to the portable terminal. In this way, when an abnormality occurs, it becomes possible to call for help quickly. Moreover, even if it becomes difficult to operate the mobile terminal due to, for example, consciousness, since it is possible to call for help as long as the voice can be heard, the possibility of being rescued safely increases.

Further, the communication unit 42 is configured to be communicable with the control unit of the vehicle on which the seat is mounted, and the control unit 41 determines that the detected value exceeds the threshold value T _U , T _L farther from the numerical range R ( If the alerting means has issued a second alert), a signal instructing to restrict subsequent driving (for example, a signal that does not operate the engine if the vehicle is stopped, or a vehicle that is running) A signal for decelerating and stopping may be transmitted to the vehicle control unit, so that even if an abnormality occurs and the occupant has stepped on the accelerator, a large signal is generated. It is possible to suppress the occurrence of an accident.

  In carrying out the present invention, each of the first detection unit 1 and the second detection unit 2 is provided in plural, and based on at least two pieces of information among four or more pieces of information obtained by the detection units and the measurement units. Then, the presence or absence of abnormality may be determined. In this way, it is possible to more accurately determine whether there is an abnormality. Further, more detailed judgment can be made by changing the way of using a plurality of pieces of information.

Further, instead of the notification unit 3 and the apparatus main body 4, as shown in FIG. 5, a mobile terminal 5 such as a commercially available smartphone or tablet may be provided.
The control unit 51 and the communication unit 52 of the portable terminal 5 have the same functions as the control unit 41 and the communication unit 42 of the apparatus body 4 of the above embodiment by installing a predetermined application in the storage unit 53 in advance. It will be.
Moreover, the display part 54 of the portable terminal 5, a speaker, a vibrator, etc. which are not shown in figure have the function similar to the alerting | reporting part 3 of the said embodiment.
Since the abnormality detection device 10A configured in this way does not have to manufacture a dedicated device body or a notification unit, the manufacturing cost of the abnormality detection device can be reduced. In addition, notification can be performed in various modes such as image display, sound, and vibration. Furthermore, it is possible to use a portable terminal owned by a passenger.

Further, the abnormality detection device 10 includes means for detecting calories consumed by the occupant during a predetermined period until the seating (change in state), and the control unit 41 corrects the numerical value range and the threshold based on the calculated calories. You may do it. In this case, the means for detecting calorie consumption and the control unit 41 function as the third detection means in the present invention.
If you have consumed calories, for example, by exercising, until you are seated, the skin color of the occupant may be more reddish than usual, and the heart rate and blood pressure may be higher. There is a high possibility that it is erroneously determined that there is an abnormality. Therefore, in this way, it is possible to suppress misjudgment by widening the numerical range of biological information or releasing the threshold by the amount considered to have increased due to exercise (the state has changed). It becomes possible.

Second Embodiment
Next, a schematic configuration of the abnormality detection apparatus according to the first embodiment of the present invention will be described.
Here, only differences from the first embodiment will be described (the configuration and operation omitted are basically the same as those of the first embodiment).

  The abnormality detection device 10A of the present embodiment mainly differs in the configuration of the first detection unit 1A and the second detection unit 2A and the control performed by the device main body 4A.

The first detection unit 1A according to the present embodiment detects at least one of the biological information of the occupant's body temperature, pulse, blood pressure, respiratory rate, and the like by directly contacting the occupant.
The first detection unit 1A may be a dedicated device, or a commercially available digital sphygmomanometer, electronic thermometer, or the like equipped with a communication function.
The first detection unit 1 may be installed in the vehicle, or may be physically separated from the vehicle such as a ring type or a bracelet type and worn by the occupant.
Further, more advanced biological information such as an electroencephalogram or a blood glucose level may be measured.

The first detection unit 1A obtains a first detection value based on the detected biological information. That is, the first detection unit 1A constitutes a first detection means in the present invention.
The calculation of the first detection value may be performed by the control unit 41 of the apparatus main body 4A described later.
The first detection unit 1 </ b> A transmits the obtained first detection value to the apparatus main body 4.

Moreover, the 1st detection part 1 can be provided with one or more with respect to one vehicle.
Although the installation location of the first detection unit 1 is not particularly limited, for example, an armrest (not shown) of the seat 200, an armrest of the door 140, or the like may be prepared so that an occupant (particularly a skin portion) can easily come into contact therewith. Good.

The 2nd detection part 2A of this embodiment indirectly measures the same biological information as what the 1st detection part 1 measures based on the information (reflected or permeate | transmitted light, electromagnetic waves, etc.) obtained from a passenger | crew. Is.
The second detection unit 2A may be configured as a dedicated device or may use a commercially available biosensor or the like.

The apparatus main body 4A differs from the first embodiment in the contents of the processing program stored in the storage unit 43A.
Specifically, it does not have a program for recognizing the eyes and head from the image data in the first embodiment and obtaining the first detection value based on these.
Instead, a program for comparing the first detection value received from the first detection unit 1 with the numerical value range R is stored.
By using the present embodiment, it is possible to obtain an abnormality detection device that can be manufactured at low cost and can be quickly determined without using a camera.

DESCRIPTION OF SYMBOLS 100 Vehicle 110 Rearview mirror 120 Ceiling 130 Instrument panel 140 Door 200 Seat 210 Seat bottom 220 Seat back 230 Headrest 10, 10A Abnormality detection device 1, 1A First detection portion 2, 2A Second detection portion 3 Notification portion 4, 4A Device main body 41 display control unit 42 communication unit 43,43A storage unit 5 the portable terminal 51 the control unit 52 communication unit 53 storage unit 54 unit R numerical range _{T L} under the threshold _{T U} suprathreshold

Claims (15)

First detection means for detecting the state of the occupant;
Second detection means for detecting the state of the occupant by a method different from the first detection means;
First determination means for determining the presence or absence of an occupant abnormality based on the state detected by the first detection means;
Second determination means for determining the presence or absence of an occupant abnormality based on the state detected by the second detection means;
An abnormality detection comprising: third determination means for finally determining the presence or absence of an abnormality of the occupant based on at least one of the determination by the first determination means and the determination by the second determination means apparatus.   The abnormality detection device according to claim 1, wherein the third determination unit adopts a determination result by a first determination unit or the second determination unit which is determined earlier as a final determination.   2. The abnormality according to claim 1, wherein the third determination unit finally determines whether there is an abnormality based on both a determination result by the first determination unit and a determination result by the second determination unit. Detection device.   Of the first judgment means and the second judgment means, the judgment means with the later judgment corrects the judgment condition for the presence or absence of abnormality based on the judgment result of the judgment means with the earlier judgment. The abnormality detection device according to any one of claims 1 to 3.   2. The apparatus according to claim 1, further comprising an alerting means for alerting an occupant when at least one of the first determining means, the second determining means, and the third determining means is determined to be abnormal. To 4. The abnormality detection device according to any one of 4 to 4.   The alerting means performs a first alert when the earlier judgment means determines that there is an abnormality, and a second alert occurs when the later judgment means determines that there is an abnormality The abnormality detection device according to claim 5. The first detection means and the second detection means are configured to detect the detected occupant state as a numerical value,
The first determination means and the second determination means determine whether there is an abnormality depending on whether the detected numerical value is within a predetermined numerical value range, or whether the numerical value exceeds a predetermined threshold value. Configured,
7. The abnormality according to claim 4, wherein the determination unit with the slower determination corrects the numerical value range or the threshold value based on a determination result of the determination unit with the earlier determination. Detection device.   The abnormality detection device according to claim 7, wherein the determination unit with the slower determination corrects the numerical value range to be narrowed or to move the threshold away from the previous detection value.   The abnormality detection device according to claim 7, wherein the determination unit with the slower determination corrects the numerical value range to be widened or the threshold value to be close to the previous detection value. A plurality of first detection means and second detection means, respectively,
The first determination means and the second determination means are at least two detection values of a plurality of first detection values detected by the first detection means and a plurality of second detection values detected by the second detection means. The abnormality detection device according to claim 1, wherein presence / absence of abnormality is determined based on the above. The first detection means includes
With a camera that takes images of the crew,
The abnormality detection device according to any one of claims 1 to 10, wherein the first detection value is obtained from a captured image. The second detection means has a biological sensor that detects biological information of at least one of body temperature, pulse, blood pressure, respiratory rate, blood glucose level, and electroencephalogram,
The abnormality detection device according to any one of claims 1 to 11, wherein the abnormality detection device is configured to obtain the second detection value from the detected biological information.    The abnormality detection device according to claim 11, wherein the first determination unit determines whether there is an abnormality based on the first detection value and the second detection value. A third detecting means for detecting a change in the state of the occupant during a predetermined period;
The abnormality according to claim 12 or 13, wherein the first determination means or the second determination means corrects a determination condition for the presence or absence of abnormality based on a change in the state detected by the third detection means. Detection device.   A sheet comprising the biological sensor according to claim 12.

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