JP7252438B2 - Abnormality detection device and sheet - Google Patents

Description

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

If the health condition of the driver who drives 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 countermeasures. As a countermeasure against this, biological information such as blood flow and blood pressure is detected based on measurement results such as pulse waves by non-contact blood flow sensors embedded in the seat and back of the seat. Techniques for estimating and grasping the health condition of a driver are known (see Patent Literatures 1 and 2).

JP 2016-190022 A JP 2016-077890 A

As described in Patent Document 2, when blood pressure is obtained based on information obtained from a camera and a sensor, the processing becomes complicated and the manufacturing cost of the device increases.
In addition, complicated processing delays the determination of whether the blood pressure value is normal. Therefore, for example, the occupant may fall into a serious condition before it is determined that there is an abnormality in the health condition of the occupant who is driving, and the occupant may cause an accident by making a mistake in the driving operation.

The present invention has been made in view of the above problems, and provides an anomaly detection device that monitors the health condition of a passenger by detecting the biological information of the passenger using a plurality of types of detection means. The purpose is to enable quick decision-making.

In order to solve the above problems, the invention according to claim 1 is an abnormality detection device,
a first detection means for detecting the state of an occupant;
a second detection means for detecting the state of the occupant by a method different from that of the first detection means;
a first judgment means for judging whether or not there is an abnormality in the occupant based on the state detected by the first detection means;
a second judgment means for judging whether or not there is an abnormality in the occupant based on the state detected by the second detection means;
a third determination means for finally determining whether or not there is an abnormality in the occupant based on at least one of the determination by the first determination means and the determination by the second determination means;
a warning means for calling the attention of the occupant when at least one of the first determination means, the second determination means, and the third determination means determines that there is an abnormality,
The third determination means makes a determination based on a combination of the presence or absence of abnormality in the determination by the first determination means and the determination by the second determination means ,
The first detection means has a camera that captures an image of the occupant, and is configured to obtain a first detection value detected by the first detection means from the captured image,
The alerting means is a monitor, which is provided in front of the seat on which the occupant who is the person to be measured is seated, and the first detection means is activated regardless of whether an abnormality has occurred or not. It is characterized by displaying the photographed image and the first detection value .

The invention according to claim 2 is the abnormality detection device according to claim 1,
The second detection means is provided on a surface layer of a portion of the seat that is close to a seated occupant .

The invention according to claim 3 is the abnormality detection device according to claim 1 or 2 ,
The third judgment means is characterized in that the judgment result by whichever of the first judgment means and the second judgment means makes the earlier judgment is adopted as the final judgment .

The invention according to claim 4 is the abnormality detection device according to claim 1 or 2 ,
The third judgment means is characterized in that it finally judges whether or not there is an abnormality based on both the judgment result of the first judgment means and the judgment result of the second judgment means.

The invention according to claim 5 is the abnormality detection device according to any one of claims 1 to 4 ,
a warning means for calling a passenger's attention when at least one of the first determination means, the second determination means, and the third determination means determines that there is an abnormality;
The alerting means is configured by a mobile terminal,
The alerting means performs the first alerting by vibration or sound when the determination means with the faster determination determines that there is an abnormality, and when the determination means with the slower determination determines that there is an abnormality, the above-mentioned alerting means It is characterized by performing the second alerting by vibration or sound stronger than the first alerting.

The invention according to claim 6 is the abnormality detection device according to claim 4 or 5 ,
The first detection means and the second detection means are configured to detect the detected state of the occupant as a numerical value,
The first judging means and the second judging means judge whether or not there is an abnormality based on whether the detected numerical value is within a predetermined numerical range or whether the numerical value exceeds a predetermined threshold value. is composed of
The judging means, which makes the judgment later, corrects the numerical range or the threshold based on the judgment result of the judging means, which makes the judgment earlier.

The invention according to claim 7 is the abnormality detection device according to claim 6 ,
The slow determination means is characterized by narrowing the numerical range or correcting the threshold so as to move away from the previous detection value.

The invention according to claim 8 is the abnormality detection device according to claim 6 ,
The slow determination means is characterized by widening the numerical range or correcting the threshold so that it approaches the previous detection value.

The invention according to claim 9 is the abnormality detection device according to any one of claims 1 to 8 ,
A plurality of first detection means and second detection means are provided,
The first determination means and the second determination means determine at least two detection values among the plurality of first detection values detected by the first detection means and the plurality of second detection values detected by the second detection means. Based on, it is characterized by determining the presence or absence of abnormality.

The invention according to claim 10 is the abnormality detection device according to any one of claims 1 to 9 ,
The first detection value is any one of the ratio of the area of the pupil to the area of the eye , the distance between the upper eyelid and the lower eyelid, the moving distance of the head, and the moving speed of the head.

The invention according to claim 11 is the abnormality detection device according to any one of claims 1 to 10 ,
the second detection means has a biosensor that detects at least one biometric information of body temperature, pulse, blood pressure, respiratory rate, blood sugar level, and electroencephalogram;
The second detection value detected by the second detection means is obtained from the detected biological information.

The invention according to claim 12 is the abnormality detection device according to claim 10 or 11 ,
The first judgment means judges whether or not there is an abnormality based on the first detection value detected by the first detection means and the second detection value detected by the second detection means.

The invention according to claim 13 is the abnormality detection device according to claim 11 or 12 ,
A third detection means for detecting a change in the state of the occupant during a predetermined period of time,
The first judging means or the second judging means is characterized in that the conditions for judging whether there is an abnormality are corrected based on the change in the state detected by the third detecting means.

The invention according to claim 14 is a sheet,
It is characterized by comprising the abnormality detection device according to any one of claims 1 to 13 .

According to the first aspect of the invention, the final judgment is made based on the judgment results of the first and second judging means. Since it is possible to determine whether or not there is an abnormality with a simpler process than when performing
Moreover, since the mechanism of judgment is simple, it becomes possible to make quick judgment.
Furthermore, the occupant and his/her fellow passenger who have been alerted can be prepared in case the occupant suddenly becomes ill.

According to the third aspect of the invention, it is possible to quickly inform the passenger and his/her fellow passengers when an abnormality occurs in the health condition of the passenger.

According to the fourth aspect of the present invention, it is possible to more accurately determine the presence or absence of an abnormality as compared with the case where only one determining means makes the final determination.

According to the fifth aspect of the present invention, since the second alerting is performed twice, even the occupant who was not very aware of the first alerting comes to pay attention.

According to the sixth aspect of the invention, the presence or absence of an abnormality can be determined only by comparing numerical values, so that the apparatus can be made simpler and faster.

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

According to the eighth aspect of the invention, since it is easier to determine that the detected value obtained thereafter is within the numerical range or does not exceed the threshold value, it is more reliably determined that there is an abnormality at the stage when it occurs. Therefore, the presence or absence of abnormality can be determined more accurately.

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

According to the tenth aspect of the invention, blood pressure and heart rate are obtained from the color of the skin of the occupant, it is determined whether the occupant is dozing off based on whether the eyelids are open, and movement of the head of the occupant is determined. It is possible to determine whether or not the user is drowsy.

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

According to the invention of claim 12 , for example, when it is dark and the camera, which is the first detection means, cannot take a picture well, and it becomes difficult to make an accurate judgment by the first judgment means, the second detection value can be used to supplement the judgment by the first judging means and make it accurate.

According to the thirteenth aspect of the invention, by changing the numerical range and the threshold of the biometric information by the amount corresponding to the state change, it is possible to suppress erroneous determination that there is an abnormality.

According to the fourteenth aspect of the invention, since the second detection means is positioned near the passenger, it is possible to detect the passenger's condition more accurately.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram showing the structure of the abnormality detection apparatus which concerns on 1st, 2nd embodiment of this invention. FIG. 2 is a schematic view of the interior of a passenger compartment of a vehicle equipped with the abnormality detection device of FIG. 1 as viewed from the rear; FIG. 2 is a side view of a seat provided with the abnormality detection device of FIG. 1; FIG. 2 is a conceptual diagram showing determination of the presence/absence of an abnormality in the abnormality detection device of FIG. 1; It is a block diagram showing the structure of the abnormality detection apparatus based on the modification of the same 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 equipped with this abnormality detection device 10, and FIG. 3 is a seat 200 equipped with this abnormality detection device 10. is a side view of the.
Although FIG. 2 illustrates a passenger car as the passenger compartment of the vehicle 100, the present invention can of course be applied to other automobiles such as buses and trucks. It is also applicable to vehicles other than automobiles.

An abnormality detection device 10 according to the present embodiment is provided in a vehicle 100 and is for monitoring whether or not there is an abnormality in the health condition of the occupant. As shown in FIG. 1, the abnormality detection device 10 includes a first detection section 1, a second detection section 2, a notification section 3, a device main body 4, and the like.
These are communicably connected by wire or wirelessly. In the case of wire connection, a wire harness installed in the vehicle may be used, or dedicated wiring may be provided. On the other hand, in the case of wireless connection, it is preferable to use short-range wireless communication such as Bluetooth (registered trademark).

The first detection unit 1 is for detecting the state of the occupant including biological information, and is composed of a camera in this embodiment. The camera may be a still camera that captures still images or a video camera that captures moving images. is preferred.
The first detection unit 1 may be a dedicated device, or may be a commercially available camera equipped with a communication function.
The power of the first detection unit 1 and the connection method with the device main body 4 are not particularly limited, but since the first detection unit 1 is expected to be used for a long time, it is connected to the device main body 4 by wire. , preferably receives power supply from the device main body 4 .

The first detection unit 1 starts photographing or ends the photographing that has been in progress based on the reception of the control signal from the apparatus main body 4 .
Also, the first detection unit 1 transmits image data of the photographed image to the apparatus main body 4 .

Also, one vehicle or a plurality of first detection units 1 can be provided for one vehicle.
The installation position of the first detection unit 1 is not particularly limited as long as it is a position capable of photographing the occupant, although it depends on the type of vehicle.
When the vehicle is an automobile, for example, as shown in FIG. 2, it is conceivable to provide a rearview mirror 110, a ceiling 120, an instrument panel 130, a door 140, etc. so that the rear can be photographed.
Although FIG. 2 illustrates the case where the first detection unit 1 is provided only around the driver's seat, it may be provided around other seats such as the front passenger seat.
In addition, when the vehicle to which the present invention is applied has a plurality of seats arranged in the front-rear direction, it may be provided on the back surface of the front seat so that the direction of the rear seat can be photographed. .

The second detector 2 detects the state of the occupant by a method different from that of the first detector 1 . In this embodiment, at least one biological information of the occupant's body temperature, pulse, blood pressure, respiratory rate, etc. is obtained by direct contact with the occupant or information obtained from the occupant (reflected or transmitted light or electromagnetic waves etc.).
The second detection unit 2 may be configured as a dedicated device, or may be a commercially available sphygmomanometer, thermometer, biosensor, or the like equipped with a communication function.

When the second detection unit 2 indirectly detects the state, light, pressure waves (sound waves and electromagnetic waves), vibrations, etc. are detected by the occupant based on the reception of the control signal from the device main body 4. configured to output in the direction of Here, the electromagnetic wave means a wide range of electromagnetic waves including radio waves and microwaves of about 100 MHz, infrared light, visible light, ultraviolet light, X-rays, etc., and is suitable within a range that does not adversely affect the human body. electromagnetic waves are used.
In this case, the second detection unit 2 is configured to detect light, pressure waves, and the like that are reflected by the body surface of the occupant or transmitted through the occupant. With this configuration, the second detection section 2 does not need to come into contact with the occupant, so it can be provided at a relatively free position.

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

The power of the second detection unit 2 and the connection method with the device main body 4 are not particularly limited, but the second detection unit 2 continues to detect the state of the occupant while the vehicle is running. Therefore, it is preferable to connect to the apparatus main body 4 by wire so that power is supplied from the apparatus main body 4 .

Also, one or a plurality of 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. 220 or the front surface layer of the headrest 230 is preferable from the viewpoint of transmitting light, electromagnetic waves, etc. emitted by the second detection unit 2 without attenuation.
If the seat 200 is provided with an ottoman, a footrest, a neckrest, etc. (not shown), these may be provided.

The notification unit 3 is composed of, for example, a monitor, a speaker, a vibrator, and the like. Based on a control signal received from the device main body 4, which will be described later, the presence or absence of an abnormality is notified to the occupant by display, sound, vibration, or the like.
When the notification unit 3 is a vibrator, it is preferably provided at a portion of the seat 200 close to the seated occupant so that the vibration can be easily transmitted.

On the other hand, when the notification unit 3 is configured with a monitor, it is preferable to provide it at a position where the subject can easily visually recognize it. Specifically, it is preferably provided in front of the seat 200 (in the case of an automobile, the instrument panel 130, or in the case of a vehicle equipped with a plurality of seats arranged in the front-rear direction, the back surface of the front seat, etc.).
Further, if the notification unit 3 is configured with a monitor, it is possible to display an image captured by the first detection unit 1 and a detection value as needed, in addition to notification of occurrence of an abnormality. In this way, even if there is no abnormality, it is possible to check the current state of the occupant.

As shown in FIG. 1, the device main body 4 includes a control section 41, a communication section 42, a storage section 43, and the like.
The control unit 41 is configured to centrally control the operation of each unit of the apparatus main body 4 using a CPU, a RAM, and the like. Specifically, the information is stored in the storage unit 43 based on the fact that the engine of the vehicle has been started, the fact that the passenger has taken a seat, the fact that the signal has been received from the first detection unit 1 or the second detection unit 2, or the like. Various processing programs stored therein are read out and developed in the RAM, and various processing is executed according to the processing programs.

The communication unit 42 transmits control signals to the first detection unit 1 and the second detection unit 2, receives image data from the first detection unit 1, and receives second detection values from the second detection unit 2. Also, 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, numerical ranges, and the like used for executing the programs.
The threshold is, for example, the ratio of the pupil area (the number of pixels with low density values) that can be regarded as open in the region recognized as the eyes, the distance between the upper eyelid and the lower eyelid, or the region recognized as the head The upper limits of the movement distance and the movement speed that can be regarded as the normal range in , etc. are stored.

The numerical range corresponds to the items measured by the second detection unit 2 and the measurement items when biometric information is detected by the first detection unit 1, and the standard values (so-called normal values) for the measurement items are stored. It is It should be noted that a plurality of types of numerical ranges corresponding to a plurality of measurement items may be stored and switched according to the connected second detection unit 2 .
In addition, 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 device 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 photographing through the communication unit 42 based on the operation of the passenger, the start of the engine of the vehicle, the seating of the passenger in the seat, etc. It is designed to transmit to the first detection unit 1 .
At the same time as or after transmitting a signal instructing the start of imaging, the control unit 41 sends a signal instructing the start of measurement to the second detection unit 2 at predetermined time intervals via the communication unit 42. It is designed to be sent repeatedly.

Also, the control unit 41 obtains a first detection value from the detected state of the passenger. Specifically, from the image data received from the first detection unit 1, biological information such as a pulse wave is directly extracted, and the eyes and head are recognized from the image. ratio of black pixels), temporal changes in the distance between the upper eyelid and the lower eyelid, and movement speed when the head moves. That is, the control section 41 constitutes first detection means in the present invention.
Note that the calculation of the first detection value may be performed in the first detection unit 1 .

Also, the control unit 41 determines whether or not there is an abnormality based on the captured image. Specifically, determination is made by comparing the obtained first detection value with the corresponding threshold value or numerical range.
When the area of the pupil, the distance between the upper eyelid and the lower eyelid, etc. are used for determination, the eyelid is closed when the state in which the first detection value is less than the threshold continues for a predetermined time, that is, dozing off or poor physical condition is suspected.
On the other hand, when the movement of the head is used for judgment, if the first detection value is equal to or higher than the threshold, it means that the neck is bent at an abnormally high speed, so it is suspected that the person is falling asleep or has decreased consciousness. judge there is.

On the other hand, when biometric information is detected from image data, a blood pressure value, a respiratory rate, and the like are obtained as first detection values, and the presence or absence of an abnormality is determined based on whether the first detection values are within a numerical range.
By performing such processing, the control unit 41 constitutes a determination means (first determination means) in the present invention.

Further, every time the control unit 41 receives the second detection value from the second detection unit 2, it compares it with a predetermined numerical range R (see FIG. 4) stored in advance in the storage unit, and determines that the second detection value is If it is within the numerical range R, it is judged that there is no abnormality, and if it is outside the numerical range R, it is judged that there is some kind of 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 judgment condition with a relatively simple program (mechanism).

Further, the control unit 41 makes a final judgment as to whether or not there is an abnormality using at least one of the judgment based on the first detection value and the judgment based on the second detection value. That is, in this embodiment, the final judgment is made based on both the judgment based on the first detected value and the judgment based on the second detected value, and the case where the final judgment is made based on either one. , there is.
In this embodiment, the final judgment is basically made based on both judgments, but depending on the user's operation and the items detected by the detection units 1 and 2, judgment based on both, one A configuration may be adopted in which any one of the judgments based on is set in advance.
A case in which the 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 determines that there is an abnormality when both are abnormal.
Here, the judgment based on the first detected value and the judgment based on the second detected value may be different. Therefore, the apparatus main body 4 (a) makes a final judgment that there is an abnormality if one is normal but the other is abnormal, and (b) if one is abnormal but the other is normal, it finally judges that there is no abnormality. , is to be selected. By doing so, when (a) is selected, it is likely to be determined that there is an abnormality, so the health condition of the occupant can be monitored more carefully. On the other hand, when (b) is selected, it is easier to determine that there is no abnormality, so it is possible to prevent the occupant from feeling unnecessarily anxious.

In addition, as a setting when the judgment based on the first detected value and the judgment based on the second detected value are different, (c) regardless of the judgment result, the judgment based on the first detected value (second detected value) is given priority. You may enable it to select to employ|adopt.

In addition, if there is almost no difference between the first detected value and the upper or lower limit of the numerical range or the threshold, and there is a possibility that the judgment based on the first detected value will not be made accurately, the second detected value is used. You may make a decision by For example, if a driver falls asleep while driving with their eyelids slightly open, if it is dark at night, if the sun is strong, etc., the state of the eyes (eyelids open) can be determined from the image by the first detection unit 1. or closed) may be difficult to determine. In such a case, if the second detection value is used, it is possible to accurately detect whether or not the person is dozing off 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.

Further, when the first detected value or the second detected value deviates significantly from the numerical range or the threshold value, the control unit 41 performs the judgment based on the first detected value or the second detected value first. The resulting judgment is adopted as the final judgment result. Specifically, for example, an upper threshold _TU (see FIG. 4) that is higher than the upper limit of the numerical range by a predetermined value and a lower threshold _TL that is lower than the lower limit of the numerical 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 the predetermined threshold values T _U and T _L stored in advance in the storage unit, and the detected value is the upper limit of the numerical range R and the upper threshold value T _U or between the lower limit of the numerical range R and the lower threshold value _TL , it is determined that the first abnormality has occurred (the possibility of abnormality is high), and the subsequent determination is awaited. , if the detected value is higher than the upper threshold value _TU or lower than the lower threshold value _TL , it is determined that a second abnormality having a higher level than the first abnormality has occurred (high possibility of abnormality). I make a decision and make it the final decision without waiting for a later decision. By doing so, it is possible to detect the occurrence of a serious abnormality more quickly and suppress the occurrence of an accident.

Further, when making the later determination, the control unit 41 corrects the conditions (numerical range, threshold value) for determining whether there is an abnormality based on the result of the earlier determination.
The method of correction is, for example, according to the user's operation or the like, (A) narrowing the numerical range or moving the threshold closer to the previously detected value, or (B) widening the numerical range or moving the threshold farther from the previously detected value. You can choose between By doing this, when (A) is selected, it is likely to be determined that there is an abnormality, so it is possible to detect the abnormality of the crew at an early stage, and to monitor the health of the crew more carefully. It becomes possible to On the other hand, when (B) is selected, it is likely to be determined that there is no abnormality, so it is possible to prevent the occupant from feeling excessive anxiety.

Further, when determining that there is an abnormality, the control section 41 transmits a signal for notifying that effect to the notification section 3 .
As a result, when an abnormality occurs, the notification unit 3 alerts the passenger (for example, notifies that an abnormality has occurred), thereby drawing the attention of the occupant. In other words, the notification unit 3 and the control unit 41 function as alerting means in the present invention.
Note that the notification unit 3 may be configured to perform some display or audio output even when no abnormality has occurred.

In addition, when there is an abnormality in the earlier judgment, a signal for performing the first warning is sent to the notification unit 3, and when there is an abnormality in the later judgment, the first warning is issued. A signal for giving a strong second warning (guidance to refrain from driving, etc.) may be transmitted to the notification unit 3 . In this way, it is possible to quickly notify the passenger that an abnormality has occurred in the passenger's health condition by the first warning. In addition, since the second attention is issued twice, even the occupant who was not so conscious of the first attention comes to pay attention.

Further, the communication unit 42 is configured to be capable of communicating with a mobile terminal (not shown), and the control unit 41 determines that the detection value exceeds the thresholds T _U and T _L in the direction away from the numerical range R (the alerting means is the first 2), a control signal instructing to contact an emergency contact may be transmitted to the portable terminal. In this way, it is possible to quickly call for help when an abnormality occurs. In addition, even if it becomes difficult to operate the mobile terminal due to, for example, faint consciousness, the user can call for help as long as he/she can speak, thus increasing the possibility of being rescued safely.

Further, the communication unit 42 is configured to be able to communicate with the control unit of the vehicle on which the seat is mounted, and the control unit 41 determines that the detected values exceed the thresholds T _U and T _L in the direction away from the numerical range R ( A signal instructing to restrict the subsequent driving (for example, a signal not to operate the engine if the vehicle is stopped, or a signal that does not operate the engine if the vehicle is running) Signals to decelerate and stop may be sent to the control unit of the vehicle.In this way, even if an abnormality occurs and the occupant has stepped on the accelerator, a large amount of It becomes possible to suppress the occurrence of an accident.

In addition, when implementing the present invention, a plurality of first detection units 1 and second detection units 2 are provided, and based on at least two pieces of information among four or more pieces of information obtained by each detection unit and each measurement unit The presence or absence of an abnormality may be determined by By doing so, it is possible to determine the presence or absence of an abnormality more accurately. Also, by changing how to use a plurality of pieces of information, it is possible to make more detailed judgments.

Further, instead of the notification unit 3 and the device body 4, as shown in FIG. 5, a mobile terminal 5 such as a commercially available smart phone or tablet may be provided.
The control unit 51 and the communication unit 52 of the portable terminal 5 have functions similar to those of the control unit 41 and the communication unit 42 of the device body 4 of the above-described embodiment by installing a predetermined application in the storage unit 53 in advance. It will be.
Also, the display unit 54 of the mobile terminal 5, a speaker (not shown), a vibrator, etc. have the same functions as the notification unit 3 of the above embodiment.
Since the abnormality detection device 10A configured in this way does not require manufacture of a dedicated device main body or notification unit, the manufacturing cost of the abnormality detection device can be reduced. In addition, it is possible to perform notification in various modes such as image display, sound, vibration, and the like. Furthermore, it is also possible to use a portable terminal possessed by the passenger.

Further, the anomaly detection device 10 is provided with means for detecting the calorie consumed by the occupant (change in state) during a predetermined period until the passenger sits down, and the control unit 41 corrects the numerical range and threshold value based on the calculated calorie. You may do so. In this case, the means for detecting the calorie consumption and the control section 41 function as the third detection means in the present invention.
If you have been exercising and consuming calories until you are seated, the skin color of the occupant may be redder than usual, and the heart rate and blood pressure may be higher than usual. There is a high possibility of erroneously determining that there is an abnormality. Therefore, in this way, it is possible to suppress erroneous judgment by widening the numerical range of the biometric information or by separating the threshold value by the amount that is considered to have increased due to exercise (the state has changed). It becomes possible.

<Second embodiment>
Next, a schematic configuration of an abnormality detection device according to a second embodiment of the present invention and a first embodiment of the present invention will be described.
Here, only differences from the first embodiment will be described (configurations and operations whose description is 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 section 1A and the second detection section 2A and the control performed by the device main body 4A.

The first detection unit 1A of the present embodiment detects at least one biological information such as body temperature, pulse, blood pressure, and respiratory rate of the occupant by direct contact with the occupant.
The first detection unit 1A may be a dedicated device, or may be a commercially available digital sphygmomanometer, electronic thermometer, or the like equipped with a communication function.
The first detection unit 1 may be installed inside the vehicle, or may be physically separated from the vehicle and worn by the occupant, such as a ring type or bracelet type.
Also, more advanced biological information such as brain waves and blood sugar levels may be measured.

The first detection unit 1A obtains a first detection value based on the detected biological information. That is, the first detection section 1A constitutes the first detection means in the present invention.
Note that the calculation of the first detection value may be performed by the control section 41 of the apparatus main body 4A, which will be described later.
Further, the first detection section 1A is adapted to transmit the obtained first detection value to the apparatus main body 4. FIG.

Also, one vehicle or a plurality of first detection units 1 can be provided for one vehicle.
The installation location of the first detection unit 1 is not particularly limited. good.

The second detection unit 2A of the present embodiment indirectly measures the same biological information as that measured by the first detection unit 1 based on the information obtained from the occupant (reflected or transmitted light, electromagnetic waves, etc.) It is.
The second detector 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 section 43A.
Specifically, it does not have a program for recognizing the eyes and the head from the image data in the first embodiment and obtaining the first detection value based thereon.
Instead, a program for comparing the first detected value received from the first detector 1 with the numerical range R is stored.
By adopting the present embodiment, it is possible to obtain an abnormality detection device that can be manufactured at low cost without using a camera and that can make quick judgments.

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 Detecting Device 1, 1A First Detector 2, 2A Second Detector 3 Reporting Part 4, 4A Device Body 41 Control unit 42 communication unit 43, 43A storage unit 5 portable terminal 51 control unit 52 communication unit 53 storage unit 54 display unit R numerical value range T _L lower threshold T _U upper threshold

Claims (14)

a first detection means for detecting the state of an occupant;
a second detection means for detecting the state of the occupant by a method different from that of the first detection means;
a first judgment means for judging whether or not there is an abnormality in the occupant based on the state detected by the first detection means;
a second judgment means for judging whether or not there is an abnormality in the occupant based on the state detected by the second detection means;
a third determination means for finally determining whether or not there is an abnormality in the occupant based on at least one of the determination by the first determination means and the determination by the second determination means;
a warning means for calling the attention of the occupant when at least one of the first determination means, the second determination means, and the third determination means determines that there is an abnormality,
The third determination means makes a determination based on a combination of the presence or absence of abnormality in the determination by the first determination means and the determination by the second determination means ,
The first detection means has a camera that captures an image of the occupant, and is configured to obtain a first detection value detected by the first detection means from the captured image,
The alerting means is a monitor, which is provided in front of the seat on which the occupant, who is the person to be measured, sits, and the first detection means detects whether an abnormality has occurred or not. An anomaly detection device characterized by displaying the captured image and the first detection value . 2. The abnormality detection device according to claim 1, wherein the second detection means is provided on a surface layer of a portion of the seat that is adjacent to a seated occupant. 3. The anomaly detection according to claim 1, wherein said third judgment means adopts a judgment result by whichever of said first judgment means and said second judgment means makes an earlier judgment as a final judgment. Device. 3. The third determining means according to claim 1, wherein the third determining means finally determines whether or not there is an abnormality based on both the result of determination by the first determining means and the result of determination by the second determining means. anomaly detection device. a warning means for calling a passenger's attention when at least one of the first determination means, the second determination means, and the third determination means determines that there is an abnormality;
The alerting means is configured by a mobile terminal,
The alerting means performs the first alerting by vibration or sound when the determination means with the faster determination determines that there is an abnormality, and when the determination means with the slower determination determines that there is an abnormality, the above-mentioned alerting means 5. The abnormality detection device according to any one of claims 1 to 4 , wherein the second alert is performed by vibration or sound stronger than the first alert . The first detection means and the second detection means are configured to detect the detected state of the occupant as a numerical value,
The first judging means and the second judging means judge whether or not there is an abnormality based on whether the detected numerical value is within a predetermined numerical range or whether the numerical value exceeds a predetermined threshold value. is composed of
6. The anomaly detection device according to claim 4, wherein the determination means that determines later corrects the numerical range or the threshold value based on the determination result of the determination means that determines earlier. 7. The anomaly detection device according to claim 6 , wherein the judgment means that judges later narrows the numerical range or corrects the threshold so as to move away from the previous detection value . 7. The anomaly detection device according to claim 6 , wherein the judgment means that judges later widens the numerical range or corrects the threshold so as to approach the previous detection value. A plurality of first detection means and second detection means are provided,
The first determination means and the second determination means determine at least two detection values among the plurality of first detection values detected by the first detection means and the plurality of second detection values detected by the second detection means. 9. The abnormality detection device according to any one of claims 1 to 8 , wherein the presence or absence of abnormality is determined based on . 2. From claim 1, wherein the first detection value is any one of the ratio of the area of the pupil to the area of the eye, the distance between the upper eyelid and the lower eyelid, the movement distance of the head, and the movement speed of the head. 10. The abnormality detection device according to any one of 9 . the second detection means has a biosensor that detects at least one biometric information of body temperature, pulse, blood pressure, respiratory rate, blood sugar level, and electroencephalogram;
11. The abnormality detection device according to any one of claims 1 to 10 , wherein the second detection value detected by said second detection means is obtained from the detected biological information. 10. The first determination means determines whether or not there is an abnormality based on the first detection value detected by the first detection means and the second detection value detected by the second detection means. 12. The abnormality detection device according to 11 . A third detection means for detecting a change in the state of the occupant during a predetermined period of time,
13. The apparatus according to claim 11 , wherein said first judgment means or said second judgment means corrects the condition for judging the presence or absence of abnormality based on the change in state detected by said third detection means. Anomaly detection device. A seat comprising the abnormality detection device according to any one of claims 1 to 13.

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