JP6564613B2 - Emergency state notification device for vehicles - Google Patents

Description

  The present invention relates to a vehicular emergency state notification device that executes a predetermined emergency operation when an abnormal situation related to the occurrence of an accident of the host vehicle is detected on a vehicle.

  For example, when a traffic accident due to a vehicle occurs on a road or the like, if the driver of the accident vehicle cannot handle it by himself, the driver or the like needs to be rescued by another person. In particular, when an accident occurs on a road with relatively little traffic, it may take a long time for others to notice the accident. In addition, when the driver of the accident vehicle becomes unconscious, the driver cannot ask for rescue by himself.

  Therefore, conventionally, an apparatus for automatically making an emergency call when an accident occurs in a vehicle has been developed (see Patent Document 1 and Patent Document 2).

  Patent Document 1 discloses a vehicular emergency call device that makes an emergency call only when necessary after confirming the presence or absence of a reaction by a vehicle occupant when an accident occurs in a vehicle. In addition, when detecting an impact on the vehicle, this vehicular emergency notification device outputs a warning, monitors whether or not a warning stop switch is operated, and performs a notification after a predetermined time if there is no switch operation. Further, the warning is changed according to the elapsed time. If the door is not opened after a predetermined time since the impact was detected, a notification is executed. Also, if the door is opened or communication is impossible immediately after the impact is detected, a notification is executed. If the door is closed and the door is not opened after a predetermined time, a notification is executed. If the door is open, the notification will be stopped.

  Patent Document 2 discloses a technique for preventing an emergency call operation from being executed even though an emergency call is not necessary. When the emergency notification device of Patent Document 2 detects the deployment of the airbag based on the operation sound of the airbag, the emergency notification device performs an emergency notification using this as a trigger. Further, in order to prevent malfunction, the traveling state before and after the detection of deployment of the airbag is compared, and an emergency call is executed only when there is a change in the traveling state, such as when an accident occurs.

JP 2001-155281 A JP 2012-155653 A

  In the event of a traffic accident caused by the host vehicle, for example, if the driver of the host vehicle is unconscious, rescue by another person is required, so it is very important to make an emergency call automatically. However, if the driver of the vehicle is conscious and the driver can move by himself / herself, rescue by others may not be necessary, and even if rescue is necessary, the driver of the vehicle itself The person who requested the rescue by the contact of can contact the detailed situation, so it can be more appropriate response.

  In addition, even if the rescue is unnecessary or the driver can contact the driver himself / herself, if the emergency call is made automatically, the contact information of the report must be taken unnecessarily. Annoying situations for contacts. In addition, there is a possibility that the emergency call automatically sent and the report by the driver's own communication are duplicated, resulting in confusion in the contact information.

  For example, when using the vehicular emergency notification device disclosed in Patent Document 1, if the driver of the own vehicle is in a conscious situation, the driver will issue a warning stop switch in response to a warning for notifying the notification. You can cancel the automatic notification operation by operating. In addition, the automatic notification operation can be stopped by performing an operation of opening the door of the vehicle.

  However, even if the driver of the vehicle is conscious, there is a possibility of being shocked by the influence of the accident, so look for and operate a special warning stop switch within a limited time. It is also possible that this is not easy. In addition, when the driver of the own vehicle is injured, it may be difficult to open the heavy door.

  On the other hand, in the emergency call device for a vehicle of Patent Document 1, a public center or a private center is assumed as a contact point for emergency calls. Similarly, in the technology of Patent Document 2, 119, a home phone, a family mobile phone, and the like are assumed as the contact information.

  However, if the location of the contact is located away from the accident occurrence point, it may take a relatively long time for the rescuer to reach the accident occurrence point after making an emergency call. And there is a possibility that it will fall into a serious situation due to delays in rescue.

  In addition, for example, when an ambulance arrives at the scene of an accident for rescue, if the driver of the accident vehicle is in an unconscious situation, information such as the driver's identity and family contact information will be displayed. Since it cannot be heard from the person, it is necessary to search for a driver's license or memo, and it is inevitable that it takes time and effort.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a vehicular emergency state notification device capable of more appropriately responding to the situation at the time of an accident. And

  In order to achieve the above-described object, the vehicle emergency state notification device according to the present invention is characterized by the following (1) to (10).

(1) An emergency state notification device for a vehicle that executes a predetermined emergency action when an abnormal situation related to an accident occurrence of the host vehicle is detected on a vehicle,
A detection function for detecting an abnormal situation, a driving operation monitoring function for monitoring the presence or absence of an operation on at least one on-vehicle driving device related to the driving operation of the host vehicle, and the driver of the host vehicle are unconscious An emergency notification function for executing a predetermined emergency notification operation assuming a case, and a support function for executing a predetermined support operation assuming a case where the driver of the host vehicle is conscious, and the detection function is After detecting an abnormal situation, when the driving operation monitoring function detects the presence of the driving operation, the emergency notification operation by the emergency notification function is stopped and the support operation by the support function is executed, and the driving operation is performed. An emergency notification control unit that executes the emergency notification operation by the emergency notification function when the monitoring function detects a state in which the driving operation is not performed for a certain period of time;
It is provided with.

  According to this vehicle emergency state notification device, if the driver of the vehicle is conscious at the time of an accident, the driver can perform normal operations related to driving without searching for a special switch. By performing the operation, the emergency notification operation can be stopped. In addition, when the driver of the own vehicle is unconscious, or when the driver cannot move due to injury or the like and rescue by another person is required, a predetermined emergency notification operation can be executed. Therefore, it is possible to avoid occurrence of an unnecessary emergency notification operation, and it is possible to respond more appropriately according to the situation at the time of the occurrence of the accident.

(2) In (1), the driving operation monitoring function of the emergency notification control unit monitors at least one of a steering wheel operation, an accelerator operation, a gear change operation, and a brake operation of the host vehicle.

  According to this emergency state notification device for a vehicle, when the driver of an accident vehicle is conscious, the driver can stop the emergency notification operation only by operating the part used for normal driving operation. Can do. Therefore, it is not necessary for the driver to find and operate a special switch that is not normally used, and even when the driver is mentally shocked due to the accident, an appropriate response can be easily made. Moreover, since it is not necessary to open and close a heavy door, it can be operated even if it is injured.

(3) In the above (1) or (2), the emergency notification function of the emergency notification control unit executes at least one control of flashing of the own vehicle and horn sounding as the emergency notification operation. about.

  According to this vehicular emergency state notification device, it is possible to notify other people in the vicinity of the accident vehicle or the driver of another vehicle that a situation requiring rescue has occurred. Therefore, there is a high possibility that a person passing near the accident vehicle can start rescue in a shorter time than a special rescuer such as an ambulance rushes from a distance.

(4) In (3), the emergency notification control unit has a door opening / closing monitoring function for detecting an opening / closing operation of the door of the host vehicle, and the emergency notification operation by the emergency notification function is performed by the door opening / closing monitoring. Continue until the door opening operation of the host vehicle is detected by the function.

  According to this vehicle emergency state notification device, the emergency notification operation is continued until another person rushes to rescue and opens the door of the accident vehicle. Therefore, the emergency notification operation can be surely executed until the rescue is started.

(5) In the above (1), an emergency information holding unit that holds information on at least one of an emergency contact information and personal information of a driver useful for rescue in an emergency,
A display unit for displaying the content of the information;
Further comprising
The emergency notification control unit has a door opening / closing monitoring function for detecting an opening / closing operation of the door of the host vehicle, and the door opening / closing monitoring function is configured to perform the emergency notification operation by the emergency notification function. If the door opening operation is detected, information is automatically read from the emergency information holding unit and the content of the information is displayed on the display unit.

  According to this vehicular emergency state notification device, when a rescuer rushed by an emergency notification operation starts rescue, information useful for rescue is automatically displayed. Therefore, the rescuer can efficiently take an appropriate response using the displayed information, and the work time can be shortened and the efficiency can be improved.

(6) In said (5), the said display unit is comprised with the graphic meter which displays the driving condition of the said own vehicle graphically,
The emergency notification control unit, when an abnormal situation is detected by the detection function, stops displaying the traveling situation of the host vehicle by the display unit and displays an emergency notice including the information.

  According to this vehicular emergency state notification device, information including emergency contact information of drivers and personal information useful for rescue in an emergency can be displayed on the graphic meter. At this time, since the graphic meter stops displaying the traveling state of the host vehicle, necessary information can be displayed smoothly.

(7) In (6), the display unit is supplied with electric power from a battery mounted on the host vehicle when the host vehicle is powered off.

  According to the vehicular emergency state notification device, even when the ignition is turned off due to an accident, power is supplied from the battery to the display unit, so that information necessary in an emergency can be displayed reliably.

(8) In (1), the detection function of the emergency notification control unit is based on at least one of an output signal of an impact sensor or an acceleration sensor mounted on the host vehicle and a signal related to activation of an airbag. Detecting abnormal situations.

  According to this vehicle emergency state notification device, when a traffic accident or the like of the host vehicle occurs, an abnormal situation can be automatically detected and an emergency notification operation can be performed.

(9) In the above (1), further comprising a wireless communication unit mounted on the host vehicle,
The emergency notification control unit, when performing the emergency notification operation, uses the wireless communication unit to perform contact with a contact address registered in advance.

  According to this emergency state notification device for a vehicle, since it is possible to contact a predetermined contact using wireless communication, even in a situation where there is no other person or other vehicle passing in the vicinity of the accident vehicle, I can contact you reliably.

(10) In the above (1), when the emergency notification control unit detects a door opening operation or some switch operation within a predetermined time after detecting an abnormal situation of the detection function, Even if the operation monitoring function does not detect the driving operation, the emergency notification operation is stopped and the support operation is executed .

  According to this vehicle emergency state notification device, even if the driver of the accident vehicle does not perform a driving operation after the accident occurs, the emergency notification operation is canceled by exiting from the accident vehicle (door opening operation) or some switch operation. Is done. In other words, if the driver of the accident vehicle is conscious and there is little damage to the extent that the rescue of the other person is not required, the driver's action is detected and the unnecessary emergency notification operation is stopped.

  According to the vehicle emergency state notification device of the present invention, it is possible to take a more appropriate response according to the situation at the time of the occurrence of an accident. That is, when the driver of the accident vehicle is conscious, the emergency notification operation can be stopped only by operating the location used by the driver during normal driving operation. Therefore, it is not necessary for the driver to find and operate a special switch that is not normally used, and even when the driver is mentally shocked due to the accident, an appropriate response can be easily made. Moreover, since it is not necessary to open and close a heavy door, it can be operated even if it is injured.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

FIG. 1 is a block diagram illustrating a configuration example of a vehicular emergency state notification device according to an embodiment of the present invention. FIG. 2 is a flowchart showing an operation example of the vehicular emergency state notification device according to the embodiment of the present invention.

  Specific embodiments of the vehicle emergency state notification device of the present invention will be described below with reference to the drawings.

<Outline of vehicle emergency state notification device 100>
An example of the configuration of a vehicular emergency state notification device 100 according to an embodiment of the present invention is shown in FIG. The vehicle emergency state notification device 100 shown in FIG. 1 is used in a state where it is mounted on various vehicles such as a private vehicle and a commercial vehicle.

  When a traffic accident occurs in a vehicle (own vehicle) equipped with the vehicle emergency state notification device 100, an emergency call is made to request rescue in a situation where another person needs to rescue the driver of the own vehicle. There must be. However, in a situation where the driver of the own vehicle is unconscious or injured so that the body cannot be moved, the driver himself cannot perform an emergency call transmission operation. Therefore, it is necessary to automatically make an emergency call when a traffic accident occurs.

  However, if an emergency call is automatically executed even though rescue is not actually required, an extra burden is placed on the rescuer who has received the emergency call, which is annoying. Also, in situations where the driver's own awareness is clear and the driver can make an emergency call on his own, the person who made the emergency call by the driver's manual operation will contact the detailed situation. It is possible to rescue more appropriately or efficiently than automatic notification.

  In addition, when the automatic notification and the emergency notification by the driver's manual operation are executed in duplicate, the rescuer who receives the emergency notification may perform the work redundantly or cause confusion. Therefore, it is necessary to avoid such duplication.

  In addition, for example, when an emergency call is made with a management center, police station, fire department, etc. as the recipient, the distance between the departure point of the rescuer and the point of occurrence of the accident may be far away, and the rescuer has an accident. It may take some time to arrive at the point. And there may be a case where treatment of an injured person is not in time due to delay in starting rescue.

  In the vehicle emergency state notification device 100 shown in FIG. 1, taking into consideration the above-mentioned various situations, an emergency call is automatically made in a necessary manner only when a traffic accident occurs and it is really necessary. Various functions are installed to make outgoing calls.

<Configuration of vehicle emergency state notification device 100>
As shown in FIG. 1, the vehicular emergency state notification device 100 includes an emergency notification control unit 10, a wireless communication interface 21, a display unit 22, and a nonvolatile memory 23. The wireless communication interface 21 can be omitted.

  The emergency notification control unit 10 is configured by, for example, a microcomputer, and has various functions for controlling the entire vehicle emergency state notification device 100. Of course, the emergency notification control unit 10 can be configured using a general logic circuit other than the microcomputer.

  As shown in FIG. 1, the emergency notification control unit 10 includes an accident occurrence detection function 11, a driving operation monitoring function 12, a door opening / closing monitoring function 13, a switch operation monitoring function 14, an emergency level identification function 15, a wireless emergency notification function 16, A local emergency notification function 17 and an emergency display control function 18 are included. Each of these functions can be realized by a microcomputer executing a program incorporated in advance.

  The wireless communication interface 21 has a function for securing a wireless communication line for communication between a specific receiver on the vehicle and outside the vehicle, or an arbitrary receiver in an emergency. Specifically, the wireless communication interface 21 is configured to secure a communication line using a wireless communication network of a mobile phone or a dedicated wireless communication network.

  The display unit 22 includes a display capable of displaying various information such as a specific message as visible information in an emergency. Note that a dedicated display unit 22 may be connected to the vehicle emergency state notification device 100. However, when the vehicle is equipped with a device having a display, such as a car navigation system, the other device The corresponding display can be used as the common display unit 22. As will be described later, the display unit 22 may be configured by a graphic meter that graphically displays meters such as a speed meter and a tachometer.

  The non-volatile memory 23 holds in advance various information used in an emergency. Specifically, an accident response message, emergency contact information, license information, rescue personal information (for example, blood type), etc. are stored in the non-volatile memory 23 for prompting the driver to operate when an accident occurs. Has been.

  As shown in FIG. 1, various signals SG11, SG12, SG13, SG21, SG22, SG23, SG24, SG31, and SG41 are input to the emergency notification control unit 10 from the vehicle side. Each of these signals may actually be input from another electronic control unit (ECU) (not shown) via a communication network on a vehicle such as CAN (Controller Area Network), In some cases, it is directly input from a sensor or switch via a signal line. In addition, about these signals, it is possible to reduce a part or to add another signal.

  The detection signal SG11 of the impact sensor is a signal output from an impact sensor (not shown) mounted on the vehicle. That is, when a large impact is applied to the vehicle as in the case of a traffic accident, the impact sensor detects this, and the signal level of the detection signal SG11 of the impact sensor changes from the normal level (for example, low level) to the active level (for example, high level). Level). Note that an acceleration sensor may be used instead of the impact sensor.

  The airbag activation signal SG12 is set to a normal level (for example, when a device for activating an airbag (not shown) mounted on the vehicle outputs a signal for activating (deploying) an airbag upon detecting an accident, that is, an impact. Switch from low level to active level (eg high level).

  The inter-vehicle distance abnormality detection signal SG13 is mounted on the host vehicle, and the distance measured by a device (not shown) that measures the inter-vehicle distance between the host vehicle and the preceding vehicle is equal to or less than a predetermined value corresponding to the occurrence of a traffic accident. The normal level (for example, low level) is switched to the active level (for example, high level).

  The accident occurrence detection function 11 in the emergency notification control unit 10 urges a signal indicating accident detection when at least one of the impact sensor detection signal SG11, the airbag activation signal SG12, and the inter-vehicle distance abnormality detection signal SG13 is switched to the active level. Sent to the degree identification function 15. Alternatively, in order to increase the reliability, the accident occurrence detection function 11 is set so that a signal indicating an accident detection is sent to the emergency level identification function 15 when two or three of the signals SG11, SG12, and SG13 are switched to the active level. It can also be configured.

  The steering wheel operation detection signal SG21 is a signal output from a steering sensor (not shown) in accordance with the turning operation of the steering wheel (steering wheel) on the vehicle by the user (driver), and the steering wheel operation amount (for example, change in steering angle) is indicated. Represent.

  The accelerator operation detection signal SG22 is a signal output from a sensor (not shown) that detects the depression amount of the accelerator pedal of the vehicle, and represents the depression amount of the accelerator pedal.

  The transmission operation detection signal SG23 is a signal output from a sensor (not shown) that detects the position of an operation lever (shift lever) for operating the shift state of the transmission of the vehicle, and the shift position of the transmission. Represents.

  The brake operation detection signal SG24 is a signal output from a sensor (not shown) that detects the amount of depression of the brake pedal of the vehicle, and represents the amount of depression of the brake pedal. A signal output from a brake switch that detects whether or not the brake pedal is depressed may be used.

  The driving operation monitoring function 12 of the emergency notification control unit 10 monitors the states of the four signals SG21, SG22, SG23, and SG24 that are input when an accident occurs, and whether or not there is a driving operation by the user (driver). And a signal indicating the presence / absence of a driving operation is sent to the emergency level identification function 15.

  The door open / close state signal SG31 is a signal output from a switch (not shown) that detects the open / close state of the door on the side of the driver's seat of the vehicle, and is a binary value that changes to a low level or a high level according to the open / close state of the door. Signal.

  The door opening / closing monitoring function 13 of the emergency notification control unit 10 monitors the state of the input door opening / closing state signal SG31 when an accident occurs, and sends a signal indicating a change in the opening / closing state to the emergency level identifying function 15.

  The switch operation detection signal SG41 is a signal that indicates the presence or absence of an operation on various switches that can be operated by the user (driver). As a representative example, the switch operation detection signal SG41 is output in response to an input operation on a touch panel (not shown) for operating the car navigation system or in response to an input operation on an application program that can be used by some user. .

  The switch operation monitoring function 14 of the emergency notification control unit 10 monitors the state of the switch operation detection signal SG41 when an accident occurs, and sends a signal indicating the presence / absence of an input operation of the user to the emergency level identification function 15.

  The emergency level identification function 15 of the emergency notification control unit 10 detects the occurrence of an accident based on the signal output from the accident occurrence detection function 11 and outputs the signal output from the driving operation monitoring function 12 and the door opening / closing monitoring function 13. The level of urgency is automatically identified based on the signal to be output and the signal output from the switch operation monitoring function 14, and processing corresponding to the level of urgency is executed. Details of the processing are as shown in FIG. 2, which will be described later.

  The wireless emergency notification function 16 executes an emergency notification by wireless communication based on the identification result of the emergency level identification function 15 when an accident occurrence is detected by the accident occurrence detection function 11. Specifically, a telephone call is made to the emergency contact telephone registered in advance to enable a voice call. Alternatively, the contents of the pre-registered message are transmitted by e-mail to the emergency contact mail address. As a typical example of an emergency contact in this case, a special management center, a police station, a fire station, a home, a family mobile phone, and the like are assumed.

  When the occurrence of an accident is detected by the accident occurrence detection function 11, the local emergency notification function 17 uses an approach other than wireless communication to appeal to a nearby person who can be rescued for an emergency action. Execute. Specifically, a blinking operation indicating an emergency state is executed using a headlight or a hazard lamp mounted on the host vehicle by a light blink control signal SG61 output from the local emergency notification function 17. At the same time, an horn sounding control signal SG62 is used to sound an automobile horn mounted on the host vehicle, that is, a horn, to inform the surroundings of the emergency state with sound.

  The emergency display control function 18 displays necessary information on the screen of the display unit 22 using characters or the like by the display control signal SG7 when the occurrence of an accident is detected by the accident occurrence detection function 11. Actually, the information necessary for the emergency display control function 18 is read from the nonvolatile memory 23 and sent to the display unit 22. Further, the emergency display control function 18 selectively displays appropriate information on the display unit 22 according to the state identified by the emergency level identification function 15.

<Operation of Emergency Status Notification Device 100 for Vehicle>
FIG. 2 shows an operation example of the vehicular emergency state notification device 100 according to the embodiment of the present invention. This operation is realized by the control of the emergency notification control unit 10. The operation of the vehicular emergency state notification device 100 shown in FIG. 2 will be described below.

  When no accident has occurred in the host vehicle, the emergency notification control unit 10 executes a process during normal driving (S11). That is, since the special emergency notification function does not operate, for example, various information is displayed on the screen of the display unit 22 as necessary. Further, the flashing of the light and the sound of the horn are activated only when a predetermined operation is performed by the driver.

  On the other hand, when a traffic accident occurs due to the host vehicle, a large impact is applied to the host vehicle. Accordingly, one or more of the impact sensor detection signal SG11, the airbag activation signal SG12, and the inter-vehicle distance abnormality detection signal SG13 become active, and the accident occurrence detection function 11 detects an accident. If an accident is detected in step S12 of FIG. 2, the process proceeds to next step S13.

  In step S13, a predetermined message for notifying the driver of the host vehicle that the accident response support function of the vehicle emergency state notifying device 100 has been activated is displayed on the screen of the display unit 22, and characters such as blinking or Perform enlarged display of characters. At the same time, sound is output. Actually, the emergency display control function 18 reads the information of the accident response message from the non-volatile memory 23 according to the signal output from the emergency level identification function 15, and outputs this information to the display unit 22 together with the display control signal SG7. .

  The subsequent steps S14, S15, and S16 are processes for identifying the urgency level, and are executed by the urgency level identification function 15. In step S <b> 14, the emergency level identification function 15 grasps the door opening / closing change and the current opening / closing state based on the signal output by the door opening / closing monitoring function 13. Then, the process proceeds to step S17 only when a change from the door closing to the door opening is detected, and otherwise the process proceeds to step S15.

  In step S15, the emergency level identification function 15 identifies the presence or absence of a driving operation by the user (the driver of the host vehicle) based on the signal output from the driving operation monitoring function 12. If there is no driving operation, the process proceeds to step S16, and if there is a driving operation, the process proceeds to step S17.

  Although not shown in the operation of FIG. 2, when the switch operation monitoring function 14 detects that there is a switch operation, it may be handled in the same manner as when the emergency level identification function 15 detects a driving operation in step S15. is assumed.

  In step S16, the emergency level identification function 15 measures the length of elapsed time since the occurrence of the accident, and compares this elapsed time with a predetermined threshold value. The process returns from step S16 to step S14 before the predetermined time elapses, and proceeds from step S16 to step S18 after the predetermined time elapses.

  In step S <b> 17, the urgency level identification function 15 controls so as to perform appropriate processing assuming that the user (the driver of the own vehicle) is conscious. That is, the automatic emergency notification transmission is stopped and the user is supported by displaying emergency contact information useful for the user's input operation. When the user thinks that it is necessary, the vehicle emergency state notification device 100 performs an emergency notification transmission operation in accordance with the user's input operation.

  In the processing after step S18, emergency notification is given for appropriate control assuming that the user (the driver of the own vehicle) is in an unconscious situation or that it is difficult to move the body due to a serious injury. The control part 10 performs.

  In step S18, the emergency level identification function 15 controls the wireless emergency notification function 16 to execute a predetermined automatic call function for the current situation. As a result, the wireless emergency notification function 16 sends a call to an emergency contact registered in advance in the nonvolatile memory 23, sends an e-mail to a pre-registered mail address, sends a call to 119, etc. Perform at least one of the following: If the vehicle does not have the wireless communication interface 21, the execution of step S18 is omitted and the process proceeds to step S19.

  In the next step S19, the emergency level identifying function 15 grasps the open / closed state of the vehicle door based on the signal output by the door open / close monitoring function 13. When the door remains closed and does not change, the process proceeds from step S19 to step S20. When the door changes to open, the process proceeds from step S19 to step S21.

  In step S20, the emergency level identification function 15 controls the local emergency notification function 17 to execute a predetermined appeal operation for the current situation. Thereby, the local emergency notification function 17 performs blinking operation of the own vehicle light using the light blinking control signal SG61, and simultaneously performs horning using the horn ringing control signal SG62. This appealing operation is repeated or continued until the door is opened.

  In step S <b> 21, the urgency level identification function 15 executes appropriate control assuming that another rescuer rescues the driver of the host vehicle whose consciousness is unknown or whose body cannot be moved. Specifically, the emergency level identification function 15 controls the emergency display control function 18 so that information useful for rescue is displayed on the screen of the display unit 22. Therefore, the emergency display control function 18 automatically reads out emergency contact information, license information, rescue personal information, etc. from the nonvolatile memory 23 and outputs them to the display unit 22.

<Advantages of the vehicle emergency state notification device 100>
Assume a situation where the driver of the vehicle is conscious and can seek help by himself when an accident occurs. In this case, since the driver of the own vehicle is likely to perform some driving operation by himself, the operation of the vehicular emergency state notification device 100 proceeds from step S15 to step S17 in FIG. Therefore, automatic emergency call transmission is stopped.

Even if the driver is mentally damaged due to an accident, or if the driver is slightly injured, such as steering wheel operation, accelerator operation, transmission shift operation, brake operation, etc. It is thought that it is easy to do because it is used to driving.
Even in situations where the driver is unconscious or injured to the extent that he cannot move himself, there may be cases where the driver unintentionally performs a steering wheel operation or an accelerator operation due to looseness, etc. . Therefore, the presence or absence of the driver's consciousness can be estimated with higher accuracy by detecting a plurality of driving operations in combination.

  Also, if the driver is hardly injured, the driver can open the door of the vehicle and go outside the vehicle. In that case, since the operation of the vehicular emergency state notification device 100 proceeds from step S14 to step S17, automatic emergency call transmission is stopped.

  On the other hand, assuming a situation in which the driver of the own vehicle becomes unconscious due to the occurrence of an accident or is injured to the extent that he cannot move himself, the door opening is not detected in step S14 in FIG. In S15, the state without driving operation continues for a long time. Accordingly, the operation of the vehicular emergency state notification device 100 proceeds from step S16 to step S18. For this reason, an emergency call is automatically executed by e-mail or telephone. Further, even in an environment where wireless communication is not possible, the flashing of the light and the sounding of the horn are automatically executed in step S20, so that there are other people who can be rescued in the vicinity of the accident vehicle. When another vehicle passes the vicinity of the accident vehicle, other people can easily notice the occurrence of the abnormality. Therefore, other people can start rescue earlier than emergency vehicles such as ambulances arrive from a remote location.

  In addition, since the blinking of the lights and the ringing of the horn in step S20 are continued until the door of the accident vehicle is opened, there is a possibility that the vehicle can be rescued even in a situation where an accident occurs on a road with low traffic. Get higher.

  Further, when the rescuer opens the door of the accident vehicle, the process proceeds from step S19 to step S21, so that information useful for rescue is automatically displayed on the screen of the display unit 22. This makes it possible to increase the efficiency and speed of rescue.

  Since the accident occurrence detection function 11 can detect the occurrence of an accident based only on the airbag activation signal SG12, the detection signal SG11 of the impact sensor and the inter-vehicle distance abnormality detection signal SG13 are not necessarily required. Therefore, the vehicular emergency state notification device 100 can be configured without newly adding a special device such as a sensor.

  In the above description, the case where the display unit 22 of the vehicle emergency state notification device 100 is configured by a general display has been described. However, the display unit 22 graphically displays meters such as a speed meter and a tachometer. It may be configured by a graphic meter displayed in

  The graphic meter normally allocates many memory areas in the microcomputer and calculation time by the CPU in order to display the meters. In particular, this tendency becomes prominent when the display unit 22 is a full graphic meter.

  In such a vehicular emergency state notification device 100, when the occurrence of an accident is detected by the accident occurrence detection function 11, the emergency notification control unit 10 stops the display of the meters by the display unit 22, and in step S13 above A predetermined message and information useful for rescue in step S21 are displayed. That is, the CPU stops executing the program for displaying the meters, and executes only the program related to the operation of the vehicular emergency state notification device 100.

  Further, by connecting the display unit 22 directly to the battery of the vehicle, even when the vehicle is turned off due to an accident, necessary information such as a predetermined message in step S13 and information useful for rescue in step S21. Can be displayed. Note that the direct connection to the battery means that the battery is connected to a location where power can be supplied from the battery to the display unit 22 even when the power of the vehicle is turned off without using an ignition or the like. Moreover, when the display unit 22 has an auxiliary battery and the power supply of the vehicle is turned off, the display unit 22 may be driven by the auxiliary battery.

  When the vehicle emergency state notification device 100 has such a configuration, when an accident occurs in a vehicle equipped with a full graphic meter, the meter can be used to reliably display necessary information according to the situation. Can do.

Here, the features of the embodiment of the vehicle emergency state notification device 100 according to the present invention described above are briefly summarized and listed in the following [1] to [10], respectively.
[1] A vehicle emergency state notification device (100) that executes a predetermined emergency operation when an abnormal situation related to an accident occurrence of the host vehicle is detected on a vehicle,
A detection function (11) for detecting an abnormal situation, a driving operation monitoring function (12) for monitoring the presence or absence of an operation on at least one on-vehicle driving device related to the driving operation of the host vehicle, and a predetermined emergency notification An emergency notification function (wireless emergency notification function 16, local emergency notification function 17) for executing an operation, and after the detection function detects an abnormal situation, the driving operation monitoring function detects the presence of the driving operation. If the emergency notification function is detected, the emergency notification operation by the emergency notification function is stopped (S17). If the driving operation monitoring function detects that the driving operation has not been performed for a certain period of time, the emergency notification operation by the emergency notification function is executed ( S18) Emergency notification control unit (10),
An emergency state notification device for a vehicle, comprising:

[2] The driving operation monitoring function of the emergency notification control unit monitors at least one of a steering wheel operation, an accelerator operation, a gear change operation, and a brake operation of the host vehicle. The emergency state notification device for a vehicle according to the above.

[3] The emergency notification function of the emergency notification control unit executes at least one of control of blinking lights and horn sounding as the emergency notification operation.
The vehicular emergency state notification device according to the above [1] or [2].

[4] The emergency notification control unit has a door opening / closing monitoring function (13) for detecting an opening / closing operation of the door of the host vehicle, and the emergency notification operation by the emergency notification function is performed by the door opening / closing monitoring function. Continue until an opening operation of the vehicle's door is detected,
The vehicular emergency state notification device according to [3] above.

[5] An emergency information holding unit (nonvolatile memory 23) for holding at least one of the emergency contact information of the driver and personal information useful for emergency rescue;
A display unit (22) for displaying the content of the information;
Further comprising
The emergency notification control unit has a door opening / closing monitoring function (13) for detecting an opening / closing operation of the door of the host vehicle, and the door opening / closing monitoring function is executed after the emergency notification operation is performed by the emergency notification function. When an operation of opening the door of the host vehicle is detected, information is automatically read from the emergency information holding unit and the content of the information is displayed on the display unit.
The vehicular emergency state notification device according to [1] above.

[6] The display unit includes a graphic meter that graphically displays a traveling state of the host vehicle.
The emergency notification control unit, when an abnormal situation is detected by the detection function, stops the display of the traveling status of the host vehicle by the display unit, and displays an emergency notification including the information.
The vehicular emergency state notification device as described in [5] above.

[7] The display unit is supplied with electric power from a battery mounted on the host vehicle when the host vehicle is powered off.
The vehicular emergency state notification device as described in [6] above.

[8] The detection function of the emergency notification control unit detects an abnormal situation based on at least one of an output signal of an impact sensor or an acceleration sensor mounted on the host vehicle and a signal related to activation of an airbag. Detect
The vehicular emergency state notification device according to [1] above.

[9] A wireless communication unit (wireless communication interface 21) mounted on the host vehicle,
When the emergency notification control unit performs the emergency notification operation, the wireless communication unit is used to contact a contact registered in advance.
The vehicular emergency state notification device according to [1] above.

[10] When the emergency notification control unit detects an operation of opening a door or some switch operation within a certain time after detecting an abnormal situation of the detection function, the driving operation monitoring function detects the driving operation. Even if the operation is not detected, the emergency notification operation is stopped.
The vehicular emergency state notification device according to [1] above.

DESCRIPTION OF SYMBOLS 10 Emergency notification control part 11 Accident occurrence detection function 12 Driving operation monitoring function 13 Door opening / closing monitoring function 14 Switch operation monitoring function 15 Urgent degree identification function 16 Wireless emergency notification function 17 Local emergency notification function 18 Emergency display control function 21 Wireless communication interface 22 Display unit 23 Non-volatile memory 100 Emergency state notification device for vehicle SG11 Impact sensor detection signal SG12 Airbag activation signal SG13 Inter-vehicle distance abnormality detection signal SG21 Steering wheel operation detection signal SG22 Accelerator operation detection signal SG23 Transmission operation detection signal SG24 Brake operation Detection signal SG31 Door open / close state signal SG41 Switch operation detection signal SG5 Communication control signal SG61 Light blinking control signal SG62 Horn ringing control signal SG7 Display control signal

Claims (10)

A vehicle emergency state notification device that executes a predetermined emergency action when an abnormal situation related to an accident occurrence of the host vehicle is detected on a vehicle,
A detection function for detecting an abnormal situation, a driving operation monitoring function for monitoring the presence or absence of an operation on at least one on-vehicle driving device related to the driving operation of the host vehicle, and the driver of the host vehicle are unconscious An emergency notification function for executing a predetermined emergency notification operation assuming a case, and a support function for executing a predetermined support operation assuming a case where the driver of the host vehicle is conscious, and the detection function is After detecting an abnormal situation, when the driving operation monitoring function detects the presence of the driving operation, the emergency notification operation by the emergency notification function is stopped and the support operation by the support function is executed, and the driving operation is performed. An emergency notification control unit that executes the emergency notification operation by the emergency notification function when the monitoring function detects a state in which the driving operation is not performed for a certain period of time;
An emergency state notification device for a vehicle, comprising: The vehicle according to claim 1, wherein the driving operation monitoring function of the emergency notification control unit monitors at least one of a steering wheel operation, an accelerator operation, a gear change operation, and a brake operation of the host vehicle. Emergency status notification device. The emergency notification function of the emergency notification control unit executes control of at least one of flashing of the own vehicle and horn sounding as the emergency notification operation.
The emergency state notification device for a vehicle according to claim 1 or 2. The emergency notification control unit has a door opening / closing monitoring function that detects an opening / closing operation of the door of the host vehicle, and the emergency notification operation by the emergency notification function is performed by the door opening / closing monitoring function. Continue until an operation is detected,
The vehicle emergency state notification device according to claim 3. An emergency information holding unit that holds at least one of the driver's emergency contact information and personal information useful for emergency rescue;
A display unit for displaying the content of the information;
Further comprising
The emergency notification control unit has a door opening / closing monitoring function for detecting an opening / closing operation of the door of the host vehicle, and the door opening / closing monitoring function is configured to perform the emergency notification operation by the emergency notification function. If the door opening operation is detected, information is automatically read from the emergency information holding unit and the content of the information is displayed on the display unit.
The vehicular emergency state notification device according to claim 1. The display unit is configured by a graphic meter that graphically displays the traveling state of the host vehicle,
The emergency notification control unit, when an abnormal situation is detected by the detection function, stops the display of the traveling status of the host vehicle by the display unit, and displays an emergency notification including the information.
The vehicular emergency state notification device according to claim 5. The display unit is supplied with electric power from a battery mounted on the host vehicle when the host vehicle is powered off.
The vehicular emergency state notification device according to claim 6. The detection function of the emergency notification control unit detects an abnormal situation based on at least one of an output signal of an impact sensor or an acceleration sensor mounted on the host vehicle and a signal related to activation of an airbag.
The vehicular emergency state notification device according to claim 1. A wireless communication unit mounted on the host vehicle,
When the emergency notification control unit performs the emergency notification operation, the wireless communication unit is used to contact a contact registered in advance.
The vehicular emergency state notification device according to claim 1. When the emergency notification control unit detects a door opening operation or some switch operation within a certain period of time after the detection function detects an abnormal situation, the driving operation monitoring function detects the driving operation. The emergency notification operation is stopped and the support operation is executed even in a state of not performing
The vehicular emergency state notification device according to claim 1.

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