JP2017211840A - Emergency notification device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emergency notification device for a vehicle capable of, when an emergency of a vehicle occurs, surely performing emergency notification to the periphery.SOLUTION: In an emergency notification device 5 for a vehicle, a notification control part 55 is configured to, when the collision of a vehicle VE1 is detected or when an emergency notification switch 54 is operated or when the emergency notification device 5 for a vehicle is detached from the vehicle VE1, form an emergency notification signal, and a transmission part 56 is configured to transmit the formed emergency notification signal to the outside of the vehicle VE1. In the emergency notification device 5 for a vehicle, a battery 57 is configured to supply power to the notification control part 55 and the transmission part 56, and the battery 57 is connected via an attachable/detachable cable connector CN to an alternator of the vehicle VE1, and charged by the alternator, and the notification control part 55 and the transmission part 56 and the battery 57 are stored in a notification case 51 provided so as to be attachable/detachable to/from the vehicle VE1, and the emergency notification switch 54 is formed on an outer peripheral surface of the notification case 51.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an emergency call device for a vehicle that makes an emergency call in the event of an emergency such as a vehicle accident.

  2. Description of the Related Art In recent years, various vehicle emergency notification devices have been proposed that detect emergency situations on roads such as accidents and notify other vehicles of emergency situations. As one of the prior arts, there is an emergency call device for a vehicle that transmits information on an emergency on the own vehicle lane to an oncoming vehicle using inter-vehicle communication or a road shoulder hot spot (see, for example, Patent Document 1). ). In the vehicular emergency notification device, the oncoming vehicle that has received the information passes toward the subsequent vehicle in the own vehicle lane, so that the subsequent vehicle can know the occurrence of an emergency situation ahead. Accordingly, it is possible to avoid the following vehicle traveling in the own vehicle lane from the danger associated with the emergency. In addition, a warning can be given to a following vehicle that is not equipped with a wireless device, and traveling safety on the own vehicle lane can be further improved.

JP 2004-118609 A

By the way, when the vehicle is stopped on the road due to an emergency such as a vehicle accident, there is a concern about the rear-end collision of the following vehicle or the fire from the own vehicle, and in order to avoid the danger, the passenger is forced to evacuate outside the vehicle May be. In this case, it is very difficult to secure a time margin for reporting the occurrence of an emergency to surrounding vehicles before leaving the vehicle.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an emergency call device for a vehicle that can reliably make an emergency call to the surroundings in the event of a vehicle emergency.

  In order to solve the above-described problem, the vehicle emergency call device according to claim 1 is connected to the emergency call switch operated by a vehicle occupant and the emergency call switch, and the emergency call switch is operated. A notification control unit for forming an emergency report signal representing an emergency situation of the vehicle, a transmission unit connected to the report control unit and transmitting an emergency report signal formed by the report control unit to the outside of the vehicle, and a report control unit And a battery for supplying power to the transmitter, an emergency report switch on the outer peripheral surface, and a report case that houses the report controller, transmitter and battery and is detachably attached to the vehicle. ing.

According to this configuration, the emergency call device for a vehicle is provided with an emergency call switch on the outer peripheral surface, and includes a call control unit, a transmission unit, a battery, and a notification case that is detachably attached to the vehicle. ing. Thereby, even after the notification case is removed from the vehicle, the transmitter is configured to be able to transmit an emergency notification signal by operating the emergency notification switch. Therefore, when an occupant evacuates outside the vehicle, it is possible to report the occurrence of an emergency to the surroundings using the vehicle emergency notification device taken out of the vehicle.
Moreover, since the emergency call device for vehicles is equipped with a battery that is independent of the vehicle power supply by being housed in a notification case, it can make an emergency call even if the vehicle power supply fails due to a collision or the like. it can.

The block diagram which showed the vehicle by which the emergency call apparatus for vehicles by one Embodiment of this invention was mounted. The figure which showed the table which represented the vehicle information memorize | stored in the vehicle information storage part typically Front view of emergency call switch The figure which showed the table which represented the correspondence information formed by operation of the emergency call switch Plan view showing the vehicle in normal times Plan view showing the state of emergency call from the vehicle Plan view showing the state of emergency call outside the vehicle Figure showing flowchart of emergency call method

<Configuration of Embodiment>
Based on FIG. 1 thru | or FIG. 6, the emergency call apparatus 5 for vehicles by one Embodiment of this invention is demonstrated. Hereinafter, the vehicle emergency call device 5 is referred to as an emergency call device 5.

(Configuration of vehicle equipped with vehicle emergency call device)
As shown in FIG. 1, an acceleration sensor 1, a collision determination ECU 2, a navigation device 3, a connection signal transmission device 4, and an emergency notification device 5 are attached to a vehicle VE1. The acceleration sensor 1 and the collision determination ECU 2 can share the configuration included in the airbag system of the vehicle VE1.
A plurality of acceleration sensors 1 are provided (shown comprehensively in FIG. 1), and each is attached to each part of the vehicle VE1. The acceleration sensor 1 can detect lateral and longitudinal accelerations generated in the vehicle VE1.

The collision determination ECU 2 is a control device formed by an input / output device (not shown), a CPU, a RAM, and the like. The acceleration sensor 1 and the collision determination ECU 2 correspond to a collision detection device. The above-described acceleration sensor 1 is connected to the collision determination ECU 2. The collision determination ECU 2 detects the occurrence of a collision in the vehicle VE1 based on the detection value from the acceleration sensor 1, and detects that the vehicle VE1 is in an emergency.
The navigation device 3 receives GPS signals from a plurality of GPS satellites, and performs positioning of the vehicle VE1. In order to detect the position of the vehicle VE1, a navigation function of a mobile phone may be used instead of the navigation device 3.
The connection signal transmission device 4 periodically transmits a connection signal toward the emergency notification device 5.

(Configuration of emergency call device and emergency call method)
The emergency notification device 5 includes a notification case 51 attached to the dashboard or console box of the vehicle VE1. The notification case 51 includes a removal detection unit 52, a vehicle information storage unit 53, and a notification control unit 55. The transmitter 56 and the battery 57 are accommodated. Further, an emergency notification switch 54 is formed on the outer peripheral surface of the notification case 51. The notification case 51 is provided so that an occupant can easily remove the notification case 51 from the vehicle VE1.

  The connection signal transmitter 4 described above is connected to the removal detection unit 52 via the first communication port IP1. The removal detection unit 52 periodically receives a connection signal from the connection signal transmission device 4. When the connection with the connection signal transmission device 4 through the first communication port IP1 is released and the connection signal from the connection signal transmission device 4 is stopped, the removal detection unit 52 has removed the notification case 51 from the vehicle VE1. Detecting that. Hereinafter, detaching the alert case 5 from the vehicle VE1, the detachment detecting unit 52 detaches the emergency alert device 5 from the vehicle VE1, equating that the emergency case 5 has been removed from the vehicle VE1. Shall be detected. When the removal detection unit 52 periodically receives signals from the collision determination ECU 2 or the navigation device 3 instead of the connection signal transmission device 4, and the signals from these signals stop, the emergency notification device 5 starts from the vehicle VE1. You may make it detect having removed.

The vehicle information storage unit 53 is connected to the collision determination ECU 2 described above via the second communication port IP2. The vehicle information storage unit 53 is connected to the navigation device 3 via the third communication port IP3. The vehicle information storage unit 53 stores vehicle information IV, which is information related to the vehicle VE1, acquired from the collision determination ECU 2, the navigation device 3, and the like.
As shown in FIG. 2, the vehicle information storage unit 53 stores information IDIT1, vehicle type IT2, current position IT3, lane IT4, collision determination type IT5, and collision time IT6 as vehicle information IV of the vehicle VE1. Yes. Information IDIT1 is assigned to each combination of vehicle information IV in order to identify different combinations of vehicle information IV. The vehicle type IT2 is stored in the manufacturing process of the vehicle VE1, and may include the vehicle type, model, displacement, total weight, chassis number, steering wheel position, and the like of the vehicle VE1. Lane IT4 indicates the lane in which the vehicle VE1 is located. The current position IT3 and the lane IT4 are vehicle information IV acquired from the navigation device 3 described above, and are rewritten every moment according to the current position of the vehicle VE1. The collision determination type IT5 is vehicle information IV acquired from the collision determination ECU 2 when the collision determination ECU 2 determines that a collision has occurred in the vehicle VE1. The collision time IT6 is acquired from a clock (not shown) provided in the vehicle VE1 when the collision determination ECU 2 determines that a collision has occurred in the vehicle VE1.

  As shown in FIG. 3, the emergency notification switch 54 is provided on the outer peripheral surface of the notification case 51 and includes a dial 54b that is rotatably attached to the scale board 54a. The scale board 54 a may be formed on a part of the outer peripheral surface of the notification case 51. On the surface of the scale board 54a, a scale 54a1 constituted by OFF display and a plurality of numbers is formed. Each number formed on the scale board 54a represents each corresponding ID of the corresponding information RT shown in FIG. As will be described later, the correspondence information RT indicates each handling method to be taken by the recipient who has received the emergency call signal from the emergency call device 5.

  On the other hand, an instruction portion 54b1 protrudes at one place on the outer peripheral surface of the dial 54b. The indicator 54b1 of the dial 54b can indicate the OFF display of the scale 54a1 or any number, and normally indicates the OFF display. In the event of an emergency, the occupant of the vehicle VE1 operates the dial 54b to select a response ID corresponding to the response method to be taken by the receiver. The emergency notification switch 54 selects the correspondence information RT corresponding to the number on the scale 54a1 pointed to by the instruction unit 54b1, and transmits an operation signal including the selected correspondence information RT.

Returning to FIG. 1, the notification control unit 55 is connected to the above-described removal detection unit 52, vehicle information storage unit 53, and emergency notification switch 54. In addition, the collision determination ECU 2 is connected to the notification control unit 55 via the fourth communication port IP4. When the emergency notification switch 54 is operated, the notification control unit 55 forms an emergency notification signal indicating an emergency of the vehicle VE1 based on the operation signal received from the emergency notification switch 54. The report control unit 55 includes the correspondence information RT included in the operation signal in the emergency report signal. In addition, the notification control unit 55 includes the vehicle information IV stored in the vehicle information storage unit 53 in the emergency notification signal.
The notification control unit 55 forms an emergency notification signal when the collision determination ECU 2 detects a collision of the vehicle VE1 regardless of the operation of the emergency notification switch 54. Furthermore, the notification control unit 55 forms an emergency notification signal when the removal detection unit 52 detects that the emergency notification device 5 has been removed from the vehicle VE1 regardless of the operation of the emergency notification switch 54.

  The transmission unit 56 is connected to the notification control unit 55 and transmits an emergency notification signal formed by the notification control unit 55 to the communication device of the other vehicle VE2 outside the vehicle VE1, the mobile phone DK of a pedestrian, a smartphone, or the like. To send. The transmitting unit 56 transmits an emergency call signal using a broadcast channel. However, the transmitting unit 56 is not limited to the broadcast channel alone, and may use a DCM (Data Communication Module) or the like. The transmission unit 56 transmits an emergency notification signal using the frequency band of the radio or mobile phone set between the vehicle VE1 and the other vehicle VE2.

Hereinafter, an emergency notification signal transmission method using a broadcast channel, which can be applied to the present embodiment, will be exemplified.
(1) A method of using an existing alarm distribution system of a mobile phone using Cell Broadcast Service. According to this, since it has a broadcast transmission mechanism, it is possible to make a call without specifying a transmission partner.
(2) A method of transmitting to a digital radio by using an alarm receiving system of an existing digital broadcasting such as DAB (Digital Audio Broadcasting), HD-Radio (Hybrid Digital Radio), or a radio segment of terrestrial digital broadcasting. In digital broadcasting, the program ID is always discriminated in the receiver because of its mechanism, so it is possible to promptly make an emergency by sending a predefined emergency call ID. .
(3) A method of transmitting to an analog radio network. According to this, since it has a mechanism of “emergency warning broadcasting”, it is possible to make an emergency call by transmitting according to the standard.

The battery 57 is formed of a secondary battery using a lithium ion battery, but may be a nickel metal hydride battery, a nickel cadmium battery, a lead storage battery, or the like. Further, the battery 57 may be a primary battery. The battery 57 corresponds to a battery. The battery 57 is connected to an alternator (not shown) of the vehicle VE1 via a detachable cable connector CN, and is always charged by the alternator. The battery 57 supplies power to the removal detection unit 52, the vehicle information storage unit 53, the notification control unit 55, and the transmission unit 56. The notification control unit 55 constantly detects the battery voltage Vb for the battery 57.
Although not shown in FIG. 1, in addition to the configuration described above, the emergency notification device 5 includes a transmission state lamp that indicates to the occupant that the transmission unit 56 is transmitting an emergency notification signal. Also good.
The emergency call device 5 described so far is removed from the vehicle VE1 by releasing the connection of the first communication port IP1, the second communication port IP2, the third communication port IP3, the fourth communication port IP4 and the cable connector CN. Can do.

  Hereinafter, an emergency notification method by the emergency notification device 5 will be described. In a state where the transmission unit 56 is not transmitting an emergency call signal (shown in FIG. 5A), when the emergency call switch 54 is operated to any number from the OFF display, the notification control unit 55 generates an emergency call signal. The transmitter 56 transmits an emergency call signal formed (shown in FIG. 5B). In addition, when the collision of the vehicle VE1 is detected by the collision determination ECU 2 regardless of the operation of the emergency notification switch 54 in a state where the transmission unit 56 is not transmitting the emergency notification signal, the notification control unit 55 also sets the emergency notification. A signal is formed, and the emergency notification signal formed by the transmission unit 56 is transmitted.

  Further, when the transmission unit 56 does not transmit an emergency notification signal, the notification control unit 55 also detects an emergency notification when the removal detection unit 52 detects that the emergency notification device 5 has been removed from the vehicle VE1. A signal is formed, and the emergency notification signal formed by the transmitter 56 is transmitted (shown in FIG. 5C). When it is detected by the removal detection unit 52 that the emergency notification device 5 has been removed from the vehicle VE1, regardless of the operation of the emergency notification switch 54 and the presence or absence of the emergency detection of the vehicle VE1 by the collision determination ECU 2 An emergency call signal is generated and transmitted. Thus, even after the emergency notification device 5 is removed from the vehicle VE1, the notification control unit 55 can form an emergency notification signal, and the transmission unit 56 is configured to be able to transmit the emergency notification signal. Even after the emergency call device 5 is removed from the vehicle VE1, the transmission unit 56 includes the vehicle information IV stored in the vehicle information storage unit 53 and the correspondence information RT formed by the emergency call switch 54 in the emergency call signal. To send.

  Hereinafter, based on the flowchart shown in FIG. 6, the control flow of the emergency call method by the emergency call apparatus 5 will be described. First, the vehicle information storage unit 53 stores the vehicle type IT2, the current position IT3, and the lane IT4 in the vehicle information IV (step S101). Next, the notification control unit 55 detects the occurrence of the collision by the collision determination ECU 2 and determines whether or not an emergency of the vehicle VE1 has been detected (step S102). When the collision of the vehicle VE1 is detected, the vehicle information storage unit 53 stores the collision determination type IT5 and the collision time IT6 as the vehicle information IV, and then proceeds to step S105.

  When the collision of the vehicle VE1 is not detected, it is determined whether or not the emergency call switch 54 has been operated to any number from the OFF display (step S103). If the emergency call switch 54 is operated to any number from the OFF display, the process proceeds to step S105. When the emergency notification switch 54 remains pointing off, the removal detection unit 52 determines whether or not the emergency notification device 5 has been removed from the vehicle VE1 (step S104). When the emergency call device 5 is removed from the vehicle VE1, the process proceeds to step S105. When the emergency call device 5 has not been removed from the vehicle VE1, this flow ends.

  In step S105, the notification control unit 55 forms an emergency notification signal including the vehicle information IV and the selected correspondence information RT. Thereafter, the transmitting unit 56 transmits the formed emergency notification signal to the outside of the vehicle VE1 (step S106). Next, the notification control unit 55 determines whether or not the battery voltage Vb is equal to or lower than the voltage threshold Vth (step S107). When the battery voltage Vb is equal to or lower than the voltage threshold Vth, the transmission of the emergency notification signal by the transmission unit 56 is stopped (step S109). When the battery voltage Vb is higher than the voltage threshold Vth, it is determined whether or not the emergency call switch 54 has been returned to OFF display from any number (step S108). When the emergency notification switch 54 is returned to the OFF display, the transmission of the emergency notification signal by the transmission unit 56 is stopped (step S109). If the emergency call switch 54 has been operated to any number, or if the emergency display switch 54 remains off from the beginning, the process returns to step S106.

<Effects of Embodiment>
According to the present embodiment, the emergency notification device 5 houses the removal detection unit 52, the vehicle information storage unit 53, the notification control unit 55, the transmission unit 56, and the battery 57, and is provided so as to be removable from the vehicle VE1. The report case 51 is provided. Further, an emergency notification switch 54 is formed on the outer peripheral surface of the notification case 51. Thus, even after the notification case 51 is removed from the vehicle VE1, the transmitter 56 is configured to transmit an emergency notification signal by operating the emergency notification switch 54. Therefore, when an occupant evacuates outside the vehicle VE1, it is possible to report the occurrence of an emergency to the surroundings using the emergency notification device 5 taken out of the vehicle VE1.
Moreover, since the emergency call device 5 includes the battery 57 that is independent of the vehicle power supply by being housed in the report case 51, even if the vehicle power supply fails due to a collision or the like, the emergency call device 5 makes an emergency call. Can do.

  The vehicle VE1 is provided with a collision determination ECU 2 that detects that a collision has occurred, and the notification control unit 55 is connected to the collision determination ECU 2. Then, the notification control unit 55 detects the occurrence of a collision by the collision determination ECU 2, and forms an emergency notification signal when it is detected that the vehicle VE1 is in an emergency state regardless of the operation of the emergency notification switch 54. As a result, when a collision occurs in the vehicle VE1, an emergency notification signal can be transmitted without operating the vehicle switch 54, and in the event of an emergency of the vehicle VE1, it is possible to reliably make an emergency notification to the surroundings. .

The emergency notification device 5 includes a removal detection unit 52 that detects that the emergency notification device 5 has been removed from the vehicle VE1. When the removal detection unit 52 detects that the emergency notification device 5 has been removed from the vehicle VE1, the notification control unit 55 forms an emergency notification signal regardless of the operation of the emergency notification switch 54. . As a result, in the event of an emergency, an emergency notification signal can be promptly transmitted even when the occupant evacuated outside the vehicle VE1 cannot afford to operate the emergency notification switch 54.
The removal detection unit 52 is connected to the vehicle VE1 so as to receive a connection signal from the vehicle VE1, and when the connection signal is stopped by releasing the connection with the vehicle VE1, the emergency notification device 5 is connected to the vehicle VE1. It is detected that it has been removed from VE1. Thereby, it can detect reliably that the emergency call apparatus 5 was removed from vehicle VE1 without having a complicated structure.

The emergency notification device 5 includes a vehicle information storage unit 53 that stores vehicle information IV, and the notification control unit 55 includes the vehicle information IV stored in the vehicle information storage unit 53 in the emergency notification signal. . Thereby, the receiver of the emergency notification signal can perform appropriate processing for the emergency based on the acquired vehicle information IV.
By operating the emergency call switch 54, the response information RT instructing the response to be taken by the recipient of the emergency call signal is selected, and the notification control unit 55 includes the selected response information RT in the emergency call signal. Thereby, the recipient of the emergency call signal can quickly cope with the emergency based on the acquired correspondence information RT.

The transmitter 56 transmits an emergency call signal using a broadcast channel. Thereby, it becomes possible to transmit the same emergency call signal all at once to the portable communication device possessed by the passenger or the pedestrian of the other vehicle VE2 located around the vehicle VE1.
In addition, since the emergency call switch 54, the transmission unit 56, and the battery 57 are independent of the vehicle VE1, direct communication to portable communication devices around the vehicle VE1 is possible, public communication infrastructure, vehicle communication facilities, etc. An independent communication system that does not need to be established can be established. Therefore, an emergency call signal can be transmitted to an autonomous vehicle or the like without being affected by the surrounding communication environment.

The transmission unit 56 transmits an emergency notification signal using a frequency band set between the vehicle VE1 and the other vehicle VE2. Thereby, it is possible to prevent the transmission from the transmission unit 56 from being mixed with other transmissions, and to accurately transmit the emergency notification signal.
When the transmission unit 56 is transmitting the emergency notification signal, the transmission unit 56 stops transmitting the emergency notification signal when the battery voltage Vb becomes equal to or lower than the voltage threshold Vth. Thereby, it is possible to prevent the battery from rising when the emergency call device 5 is taken out of the vehicle VE1.

<Other embodiments>
The present invention is not limited to the above-described embodiments, and can be modified or expanded as follows.
Emergency situations in which an emergency call signal is transmitted include not only a vehicle collision but also a vehicle stop due to a failure or the like, a road accident caused by a human accident or a natural disaster, and the like.
A current is passed through the circuit including the notification case 51 in the vehicle VE1, and it is detected that the current is cut off when the emergency notification device 5 is removed from the vehicle VE1, thereby detecting that the emergency notification device 5 has been removed. May be.
The present invention does not have to include all the components in the above-described embodiment, and can be carried out by selecting any one of them without departing from the object of the present invention. .

  In the drawings, 1 is an acceleration sensor (collision detection device), 2 is a collision determination ECU (collision detection device), 5 is an emergency call device for a vehicle, 51 is a notification case, 52 is a removal detection unit, and 53 is a vehicle information storage unit. , 54 is an emergency notification switch, 55 is a notification control unit, 56 is a transmission unit, 57 is a battery (battery), IV is vehicle information, RT is correspondence information, VE1 is a vehicle, and VE2 is another vehicle.

Claims (8)

An emergency call switch (54) operated by an occupant of the vehicle (VE1);
A notification control unit (55) connected to the emergency notification switch and forming an emergency notification signal indicating an emergency of the vehicle when the emergency notification switch is operated;
A transmission unit (56) connected to the notification control unit and configured to transmit the emergency notification signal formed by the notification control unit to the outside of the vehicle;
A battery (57) for supplying power to the notification control unit and the transmission unit;
The emergency notification switch is provided on the outer peripheral surface, and stores the notification control unit, the transmission unit, and the battery, and a notification case (51) that is detachably attached to the vehicle;
An emergency call device for vehicles (5) provided with The vehicle is equipped with a collision detection device (1, 2) for detecting the occurrence of a collision,
The notification control unit
The emergency notification signal is formed when the collision detection device detects that a collision has occurred in the vehicle regardless of the operation of the emergency notification switch, connected to the collision detection device. Emergency call device for vehicles. The notification case further includes a removal detection unit (52) for detecting that the notification case has been removed from the vehicle,
The notification control unit
3. The vehicle according to claim 1, wherein the emergency notification signal is formed when the removal detection unit detects that the notification case is removed from the vehicle regardless of an operation of the emergency notification switch. Emergency call device. The removal detector is
The notification case is removed from the vehicle when connected to the vehicle so as to receive a connection signal from the vehicle, and the connection signal is stopped by disconnecting the vehicle. The emergency notification device for a vehicle according to claim 3 to be detected. The notification case further includes a vehicle information storage unit (53) that stores vehicle information (IV) that is information about the vehicle,
The notification control unit
The vehicle emergency notification device according to any one of claims 1 to 4, wherein the vehicle information stored in the vehicle information storage unit is included in the emergency notification signal. The emergency call switch
By being operated, the response information (RT) indicating the response to be taken by the recipient of the emergency call signal is formed,
The notification control unit
The vehicular emergency call device according to any one of claims 1 to 5, wherein the correspondence information formed by operating the emergency call switch is included in the emergency call signal. The transmitter is
The vehicular emergency call apparatus according to any one of claims 1 to 6, wherein the emergency call signal is transmitted using a broadcast channel. The transmitter is
The vehicle emergency notification device according to any one of claims 1 to 7, wherein the emergency notification signal is transmitted using a frequency band set between the vehicle and another vehicle (VE2).

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