JP2011150630A - Emergency vehicle information notification system, receiving apparatus and method for notifying of emergency vehicle information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for suitably notifying an occupant of a general vehicle of emergency traveling of an emergency vehicle in an emergency vehicle information notification system. <P>SOLUTION: The emergency vehicle information notification system includes: a transmission apparatus mounted on an emergency vehicle; and a receiving apparatus mounted on each general vehicle. During emergency traveling, the transmission apparatus wirelessly transmits information indicating the present position of the emergency vehicle and information indicating the advancing direction of the emergency vehicle to the receiving apparatus. The receiving apparatus determines whether the emergency vehicle approaches or not based on the information indicating the present position of the emergency vehicle, the information indicating the advancing direction of the emergency vehicle, information indicating the present position of an own vehicle, and information indicating the advancing direction of the own vehicle, and only when determining approach, notifies an occupant of the own vehicle of the approach of the emergency vehicle. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an emergency vehicle information reporting system and an emergency vehicle information reporting method for notifying emergency vehicle information.

  Emergency vehicles such as emergency cars, fire fighting cars, patrol cars, etc. are obliged to run with a siren of a certain volume during emergency running. Therefore, the driver of the general vehicle can recognize the emergency traveling of the emergency vehicle by the sound of the siren. However, since the distance at which the driver can recognize the approach of the emergency vehicle greatly varies depending on the noise level of the surrounding environment, the wind direction, the sound insulation performance of the general vehicle, etc., the general vehicle may not be able to evacuate quickly and smoothly.

  As a technique for solving such a problem, for example, Patent Document 1 discloses an emergency vehicle approach notification system that reports the approach of an emergency vehicle to a driver of a general vehicle.

  In the emergency vehicle approach notification system disclosed in Patent Document 1, a transmitter mounted on an emergency vehicle notifies an ordinary vehicle driver that the emergency vehicle is approaching when the emergency vehicle is in an emergency travel. Emergency vehicle approach information and position (current position and target position) information are transmitted as radio signals to an emergency vehicle approach notification device installed in the road information broadcasting facility.

  On the other hand, the emergency vehicle approach notification device that has received the radio signal from the transmitter demodulates the received radio signal, determines whether or not the own device is on the path of the emergency vehicle from the position information, and the own device is the emergency vehicle If it is determined that the vehicle is on the passing route, emergency vehicle approach information is transmitted as a radio signal to a receiver mounted on a general vehicle traveling in the vicinity. And the receiver which received the radio signal from the emergency vehicle approach notification apparatus demodulates the received radio signal, and notifies the driver of emergency vehicle approach information by voice or the like.

JP 2002-15399

  However, in the technique disclosed in Patent Document 1, an emergency vehicle approaches all drivers of a general vehicle that travels in the vicinity of a road information broadcasting facility in which an emergency vehicle approach notification device that transmits emergency vehicle approach information is installed. You are informed. Therefore, there is a problem that the driver of a general vehicle that does not need to be evacuated is notified that the emergency vehicle is approaching, and the driver's attention to driving is reduced. In addition, due to this notification, there is a possibility that traffic congestion may occur due to deceleration or evacuation to a general vehicle that does not require evacuation. Furthermore, when the approach of an emergency vehicle is reported many times in a situation where it is not necessary to evacuate the vehicle, there is a problem that the reliability of the notification is lowered.

  An object of the present invention is to provide a technique for appropriately reporting emergency travel of an emergency vehicle to a passenger of a general vehicle in an emergency vehicle information notification system.

In order to achieve the above object, the emergency vehicle information reporting system of the present invention is an emergency vehicle information reporting system for reporting emergency traveling of an emergency vehicle,
A transmitting device that is mounted on an emergency vehicle and wirelessly transmits emergency vehicle information including emergency vehicle position information indicating a current position of the emergency vehicle and emergency vehicle direction information indicating a traveling direction of the emergency vehicle when the emergency vehicle is in an emergency travel When,
When mounted on a general vehicle and receiving the emergency vehicle information, the emergency vehicle position information, the emergency vehicle direction information, the general vehicle position information indicating the current position of the general vehicle, and the general vehicle direction indicating the traveling direction of the general vehicle Based on the information, it is determined whether or not the emergency vehicle and the general vehicle approach each other, and only when it is determined that the emergency vehicle and the general vehicle approach each other, the emergency vehicle travels the emergency vehicle. A receiving device for reporting to,
Have

In order to achieve the above object, the receiving device of the present invention provides emergency vehicle position information indicating the current position of the emergency vehicle, which is wirelessly transmitted from the transmission device mounted on the emergency vehicle when the emergency vehicle is in an emergency travel. And a receiving device mounted on a general vehicle for receiving emergency vehicle information including emergency vehicle direction information indicating a traveling direction of the emergency vehicle,
Wireless receiving means for receiving the emergency vehicle information;
The emergency vehicle position information and the emergency vehicle direction information included in the emergency vehicle information received by the wireless reception means, general vehicle position information indicating the current position of the general vehicle, and a general direction indicating the traveling direction of the general vehicle Determining means for determining whether or not the emergency vehicle and the general vehicle approach based on vehicle direction information;
Only when it is determined by the determination means that the emergency vehicle and the general vehicle are approaching, an output means for notifying an occupant of the general vehicle of an emergency travel of the emergency vehicle;
Have

In order to achieve the above object, the emergency vehicle information reporting method of the present invention is an emergency vehicle information reporting method in an emergency vehicle information reporting system for reporting emergency traveling of an emergency vehicle,
When the emergency vehicle travels urgently, the transmitting device mounted on the emergency vehicle wirelessly transmits emergency vehicle information including emergency vehicle position information indicating the current position of the emergency vehicle and emergency vehicle direction information indicating the traveling direction of the emergency vehicle. Send
When the receiving device mounted on the general vehicle receives the emergency vehicle information, the emergency vehicle position information, the emergency vehicle direction information, the general vehicle position information indicating the current position of the general vehicle, and the traveling direction of the general vehicle are displayed. Based on the general vehicle direction information shown, it is determined whether or not the emergency vehicle and the general vehicle are close to each other, and only when it is determined that the emergency vehicle and the general vehicle are close, Notify the vehicle passenger.

  ADVANTAGE OF THE INVENTION According to this invention, in the emergency vehicle information notification system, the emergency driving | running | working of an emergency vehicle can be reported appropriately to the passenger of a general vehicle.

It is a block diagram which shows the structure of the emergency vehicle information notification system in 1st Embodiment. It is a sequence diagram which shows the process sequence of the transmitter 100 and the receiver 200 when the emergency vehicle 10 carries out emergency travel by the emergency vehicle information reporting system shown in FIG. It is a block diagram which shows the structure of the emergency vehicle information notification system in 2nd Embodiment. It is a block diagram which shows the structure of the emergency vehicle information notification system in 3rd Embodiment. FIG. 5 is a sequence diagram illustrating a processing procedure of the transmission device 100, the reception devices 200 and 210, and the relay devices 300 and 310 when the emergency vehicle 10 travels urgently in the emergency vehicle information notification system illustrated in FIG. It is a block diagram which shows the structure of the emergency vehicle information notification system in 4th Embodiment. It is a sequence diagram which shows the process sequence of the transmitter 100, the receiver 200, the relay apparatus 300, and the center apparatus 400 when the emergency vehicle 10 carries out an emergency run by the emergency vehicle information notification system shown in FIG.

  Next, the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing the configuration of the emergency vehicle information reporting system in the first embodiment.

  As shown in FIG. 1, the emergency vehicle information reporting system in the first embodiment includes a transmission device 100 mounted on an emergency vehicle 10 and a reception device 200 mounted on a general vehicle 20.

  The transmission device 100 includes an input unit 101, a positioning unit 102, a control unit 103, a wireless transmission unit 104, and an audio output unit 105. The control unit 103 is realized by, for example, an LSI (Large Scale Integration) composed of a logic circuit or the like, or a CPU (Central Processing Unit) operating according to a program, a DSP (Digital Signal Processor), and the like, and the wireless transmission unit 104 For example, it is realized by an LSI composed of a logic circuit or the like.

  The input unit 101 is, for example, an input device such as a keyboard, a mouse, or an operation panel, and emergency travel start information indicating that the emergency vehicle 10 has started emergency travel from the passenger or emergency travel end indicating that emergency travel has ended. When information is input, the input information is output to the control unit 103.

  The positioning unit 102 has a function of a GPS (Global Positioning System) receiver, and determines the current position of the emergency vehicle 10 by measuring the current position of the emergency vehicle 10 every predetermined time based on radio waves transmitted from GPS satellites. Emergency vehicle position information indicating the traveling direction of the emergency vehicle 10 is generated based on the emergency vehicle position information generated every predetermined time. Then, the positioning unit 102 notifies the control unit 103 of the emergency vehicle position information and the emergency vehicle direction information generated every predetermined time. Note that the positioning unit 102 is realized by, for example, a positioning unit that measures a current position and a traveling direction of the host vehicle provided in a known car navigation device.

  When the emergency travel start information is input from the input unit 101, the control unit 103 notifies the audio output unit 105 of a siren ringing request for requesting the siren ringing. Further, the control unit 103 generates emergency travel information for the emergency vehicle 10 to notify the passenger of the general vehicle of emergency travel, and sets emergency vehicle information including emergency travel information, emergency vehicle position information, and emergency vehicle direction information. The wireless transmission unit 104 is notified. It should be noted that after the emergency travel start information is input, the control unit 103 obtains the emergency vehicle position information and the emergency vehicle direction information from the positioning unit 102 until the emergency travel end information is input. Vehicle information is generated and notified to the wireless transmission unit 104.

  The wireless transmission unit 104 has a function of performing wireless communication with the reception device 200 of the general vehicle 20, and wirelessly transmits emergency vehicle information received from the control unit 103 to the reception device 200. Examples of means for wireless communication include a wireless local area network (LAN) and a dedicated short range communication (DSRC).

  The sound output unit 105 is a sound output device such as a speaker having a function of sounding a siren. When the sound output unit 105 acquires a siren sounding request from the control unit 103, the sound output unit 105 sounds the siren.

  The reception device 200 includes a wireless reception unit 201, a position calculation unit 202, a determination unit 203, and an output unit 204. The determination unit 203 is realized by, for example, an LSI configured by a logic circuit or the like, or a CPU or DSP that operates according to a program, and the wireless reception unit 201 is realized by an LSI configured by, for example, a logic circuit.

  The wireless reception unit 201 has a function of performing wireless communication with the transmission device 100 of the emergency vehicle 10 by, for example, wireless LAN or DSRC. When the emergency vehicle information is received from the transmission device 100, the received emergency vehicle information is determined by the determination unit 203. Notify

  The position calculation unit 202 has a function of a GPS receiver, and measures the current position of the general vehicle 20 at predetermined time intervals based on radio waves transmitted from GPS satellites and indicates the current position of the general vehicle 20. Information is generated, and further, general vehicle direction information indicating the traveling direction of the general vehicle 20 is generated based on the general vehicle position information generated every predetermined time. Then, the position calculation unit 202 notifies the determination unit 203 of the general vehicle position information and the general vehicle direction information generated every predetermined time. The position calculation unit 202 is realized by a positioning unit that measures the current position and the traveling direction of the host vehicle, which is included in a known car navigation device, for example.

  When the determination unit 203 acquires the emergency vehicle information from the wireless reception unit 201, the emergency vehicle position information and the emergency vehicle direction information included in the acquired emergency vehicle information, the general vehicle position information acquired most recently from the position calculation unit 202, and Based on the general vehicle direction information, it is determined whether or not the emergency vehicle 10 and the general vehicle 20 approach each other.

  For example, even if emergency vehicle information is received from the emergency vehicle 10, when the general vehicle 20 is traveling behind the emergency vehicle 10, there is a high possibility that the emergency vehicle 10 and the general vehicle 20 do not approach each other. Therefore, the determination unit 203 may determine that the emergency vehicle 10 and the general vehicle 20 do not approach when the general vehicle 20 is located behind the current position of the emergency vehicle 10 with respect to the traveling direction of the emergency vehicle 10. Specifically, when the position indicated by the general vehicle position information is present behind the direction indicated by the emergency vehicle direction information from the position indicated by the emergency vehicle position information, the emergency vehicle 10 and the general vehicle 20 do not approach each other. Is determined. On the other hand, what is necessary is just to determine with the emergency vehicle 10 and the general vehicle 20 approaching other than that.

  The determination unit 203 notifies the output unit 204 of the emergency vehicle information, the general vehicle position information, and the general vehicle direction information only when it is determined that the emergency vehicle 10 and the general vehicle 20 approach each other. When it is determined that is not approaching, each information is discarded.

  The output unit 204 has a function of notifying an occupant of emergency travel of the emergency vehicle 10 and includes a map display unit 205, an information display unit 206, and an audio playback unit 207.

  The map display unit 205 superimposes and displays emergency vehicle position information, emergency vehicle direction information, general vehicle position information, and general vehicle direction information on map data indicating the vicinity of the current position of the general vehicle 20.

  The information display unit 206 displays emergency travel information. For example, the emergency travel information is displayed with characters, graphics, and the like.

  The voice reproduction unit 207 converts emergency travel information into voice and outputs it.

  Note that the output unit 204 is realized by, for example, an output device included in a car navigation device.

  Next, processing procedures of the transmission device 100 and the reception device 200 when the emergency vehicle 10 travels urgently in the emergency vehicle information notification system shown in FIG. 1 will be described.

  FIG. 2 is a sequence diagram showing processing procedures of the transmission device 100 and the reception device 200 when the emergency vehicle 10 travels urgently in the emergency vehicle information notification system shown in FIG.

  When emergency travel start information is input by a passenger of the emergency vehicle 10 (step S1), the input unit 101 of the transmission device 100 outputs the input emergency travel start information to the control unit 103.

  When emergency travel start information is input from the input unit 101, the control unit 103 notifies the audio output unit 105 of a siren ringing request. And if the siren ringing request | requirement is acquired from the control part 103, the audio | voice output part 105 will sound a siren (step S2).

  On the other hand, the control unit 103 acquires emergency vehicle position information and emergency vehicle direction information from the positioning unit 102 every predetermined time. Then, when emergency travel start information is input from the input unit 101, the control unit 103 generates emergency travel information and wirelessly transmits emergency vehicle information including emergency travel information, emergency vehicle position information, and emergency vehicle direction information. 104 is notified. When the emergency vehicle information is acquired from the control unit 103, the wireless transmission unit 104 wirelessly transmits the acquired emergency vehicle information to the wireless reception unit 201 of the reception device 200 (step S3).

  When emergency vehicle information is received from the wireless transmission unit 104 of the transmission device 100, the wireless reception unit 201 of the reception device 200 notifies the determination unit 203 of the received emergency vehicle information.

  On the other hand, the determination unit 203 acquires emergency vehicle position information and emergency vehicle direction information from the position calculation unit 202 every predetermined time. And if emergency vehicle information is acquired from the radio | wireless receiving part 201, the determination part 203 will be the emergency vehicle position information and emergency vehicle direction information which are contained in the acquired emergency vehicle information, and the general vehicle position most recently acquired from the position calculation part 202. Based on the information and the general vehicle direction information, it is determined whether or not the emergency vehicle 10 and the general vehicle 20 approach each other (step S4). When the determination unit 203 determines that the emergency vehicle 10 and the general vehicle 20 are approaching, the determination unit 203 notifies the output unit 204 of the emergency vehicle information, the general vehicle position information, and the general vehicle direction information. If it is determined not to approach, each information is discarded.

  When the output unit 204 acquires emergency vehicle information, general vehicle position information, and general vehicle direction information, the information display unit 206 displays the emergency travel information in characters, graphics, and the like, and the audio reproduction unit 207 outputs the emergency travel information as audio. (Step S5). Further, the map display unit 205 superimposes and displays emergency vehicle position information, emergency vehicle direction information, general vehicle position information, and general vehicle direction information on map data indicating the vicinity of the current position of the general vehicle 20.

  After that, the control unit 103 of the transmission device 100 generates emergency vehicle information including new emergency vehicle position information and emergency vehicle direction information acquired from the positioning unit 102 at predetermined time intervals, via the wireless transmission unit 104. Wireless transmission is performed to the receiving device 200 (step S6). On the other hand, every time the receiving device 200 receives emergency vehicle information from the transmitting device 100, the receiving device 200 performs a determination process (step S7) and an output process (step S8).

  As described above, according to the present embodiment, the transmission device mounted on the emergency vehicle wirelessly transmits the emergency vehicle position information and the emergency vehicle direction information to the reception device mounted on the general vehicle during emergency traveling. On the other hand, the receiving device determines whether or not the emergency vehicle approaches based on the emergency vehicle position information, the emergency vehicle direction information, the general vehicle position information, and the general vehicle direction information. Notify passengers of emergency driving.

  As a result, the driver of the general vehicle that needs to evacuate is notified of the approach of the emergency vehicle without being affected by the surrounding environment or the like, so that the general vehicle can be evacuated quickly and smoothly. On the other hand, since the driver of a general vehicle that does not need to be evacuated is not notified of the approach of an emergency vehicle, the driver's attention to driving is not reduced by the notification. In addition, it is possible to suppress the occurrence of traffic congestion due to deceleration or evacuation of general vehicles that do not require evacuation. Therefore, the emergency vehicle information reporting system can appropriately report the emergency traveling of the emergency vehicle to the passenger of the general vehicle.

  Further, the transmission device of the present embodiment generates emergency vehicle position information and emergency vehicle direction information based on radio waves transmitted from GPS satellites, and the reception device is a general vehicle position based on radio waves transmitted from GPS satellites. Information and general vehicle direction information are generated. Thereby, the passenger of the emergency vehicle or the general vehicle does not need to input the current position and traveling direction of each vehicle to each device, and the emergency vehicle information reporting system can improve the convenience.

  In addition, the receiving device according to the present embodiment determines that the emergency vehicle and the general vehicle do not approach when the general vehicle is located behind the current position of the emergency vehicle with respect to the traveling direction of the emergency vehicle. Is not reported to the passenger of the general vehicle. Thereby, the report of the emergency travel of the emergency vehicle to the passenger of the general vehicle traveling behind the emergency vehicle can be suppressed.

  Further, when receiving the emergency vehicle information from the transmission device, the receiving device of the present embodiment displays the emergency vehicle position information and the emergency vehicle direction information superimposed on the map data indicating the vicinity of the current position of the general vehicle. As a result, the passenger can recognize the current position and the traveling direction of the emergency vehicle and can more appropriately cope with the approach of the emergency vehicle, so that the emergency vehicle information reporting system can improve convenience.

(Second Embodiment)
In 1st Embodiment, the example which determines whether the emergency vehicle 10 and the general vehicle 20 approach based on emergency vehicle position information, emergency vehicle direction information, general vehicle position information, and general vehicle direction information was shown. However, the present invention is not limited to this. In the second embodiment, an example in which it is determined whether or not the emergency vehicle 10 and the general vehicle 20 are approaching based on information indicating a travel route to the destination of the emergency vehicle 10 will be described.

  FIG. 3 is a block diagram showing the configuration of the emergency vehicle information reporting system in the second embodiment.

  As shown in FIG. 3, the emergency vehicle information reporting system in the second embodiment has an image display unit 106 in the transmission device 100 in addition to the configuration of the emergency vehicle information reporting system in the first embodiment.

  The control unit 103 of the present embodiment displays map data on the image display unit 106 to prompt the passenger of the emergency vehicle 10 to input destination information indicating the destination of the emergency vehicle 10, and the input destination information Is acquired via the input unit 101. Then, the control unit 103 generates emergency vehicle route information indicating a travel route to the destination of the emergency vehicle 10 based on the destination information and the emergency vehicle position information, and the generated emergency vehicle route information is displayed on the image display unit 106. Notice.

  On the other hand, the image display unit 106 displays the map data in accordance with an instruction from the control unit 103, and when the emergency vehicle route information is acquired from the control unit 103, the acquired emergency vehicle route information is displayed superimposed on the map data. . Note that the image display unit 106 is realized by, for example, an output device included in a car navigation device.

  Further, when the emergency travel start information is input from the input unit 101, the control unit 103 wirelessly transmits emergency vehicle information including emergency vehicle route information in addition to emergency travel information, emergency vehicle position information, and emergency vehicle direction information. Wirelessly transmitted to the receiving apparatus 200 via the unit 104.

  On the other hand, when receiving the emergency vehicle information including the emergency vehicle route information via the wireless reception unit 201, the determination unit 203 of the reception device 200 receives emergency vehicle position information, emergency vehicle direction information, general vehicle position information, and general vehicle direction. Based on the emergency vehicle route information in addition to the information, it is determined whether or not the emergency vehicle 10 and the general vehicle 20 approach each other.

  For example, when the general vehicle 20 is traveling in a direction away from the travel route of the emergency vehicle 10, there is a high possibility that the general vehicle 20 and the emergency vehicle 10 do not approach each other. Therefore, when the traveling direction of the general vehicle 20 is a direction away from the travel route of the emergency vehicle 10, the determination unit 203 may determine that the emergency vehicle 10 and the general vehicle 20 do not approach each other. In that case, for example, when the straight line from the position indicated by the general vehicle position information to the direction indicated by the general vehicle direction information does not intersect the travel route indicated by the emergency vehicle route information, the emergency vehicle 10 and the general vehicle 20 are Judged not to approach. Note that this determination condition may be combined with the determination condition described in the first embodiment as appropriate.

  The determination unit 203 notifies the output unit 204 of the emergency vehicle information, the general vehicle position information, and the general vehicle direction information only when it is determined that the emergency vehicle 10 and the general vehicle 20 approach each other. When it is determined that is not approaching, each information is discarded.

  The map display unit 205 displays emergency vehicle route information in addition to emergency vehicle position information, emergency vehicle direction information, general vehicle position information, and general vehicle direction information on map data indicating the vicinity of the current position of the general vehicle 20. Superimposed display.

  Note that when destination information is not input, the transmission device 100 wirelessly transmits emergency vehicle information including only emergency travel information, emergency vehicle position information, and emergency vehicle direction information, as in the first embodiment. . In this case, the receiving device 200 determines whether or not the emergency vehicle 10 and the general vehicle 20 approach each other based on the emergency vehicle position information, the emergency vehicle direction information, the general vehicle position information, and the general vehicle direction information.

  As described above, according to the present embodiment, the receiving device mounted on the general vehicle can include the emergency vehicle position information, the emergency vehicle direction information, the general vehicle position information, and the general vehicle direction information in addition to the emergency vehicle route information. Based on this, it is determined whether or not the emergency vehicle approaches. Thus, even when the emergency vehicle changes direction or the road on which the emergency vehicle travels is curved, the receiving device can accurately determine the approach of the emergency vehicle.

  In addition, when the traveling direction of the general vehicle is a direction away from the travel route of the emergency vehicle, the receiving device according to the present embodiment determines that the emergency vehicle and the general vehicle do not approach each other, and performs emergency travel of the emergency vehicle. Do not notify passengers. Thereby, the report of the emergency travel of the emergency vehicle to the passenger of the general vehicle traveling in the direction away from the travel route of the emergency vehicle can be suppressed.

  In addition to the emergency vehicle position information, the emergency vehicle direction information, the general vehicle position information, and the general vehicle direction information, the receiving device of the present embodiment provides emergency vehicle route information on map data indicating the vicinity of the current position of the general vehicle. Are superimposed and displayed. As a result, the passenger can recognize the current position and travel route of the emergency vehicle and can more appropriately respond to the approach of the emergency vehicle, so that the emergency vehicle information reporting system can improve convenience.

  In addition, when the destination information is not input to the transmission device, the receiving device of the present embodiment is configured so that the emergency vehicle is based on the emergency vehicle position information, the emergency vehicle direction information, the general vehicle position information, and the general vehicle direction information. Judge whether to approach. Thereby, even when the destination information is not input to the transmission device, the reception device can determine the approach of the emergency vehicle.

(Third embodiment)
In 1st Embodiment and 2nd Embodiment, although the example which transmits emergency vehicle information directly from the transmission device mounted in the emergency vehicle to the receiving device mounted in the general vehicle was shown, this invention is It is not limited to this. In the third embodiment, an example will be described in which a wireless facility including a relay device is installed on a road, and the transmission device transmits emergency vehicle information to the reception device via the relay device.

  FIG. 4 is a block diagram showing the configuration of the emergency vehicle information reporting system in the third embodiment.

  As shown in FIG. 4, the emergency vehicle information reporting system according to the third embodiment includes a transmission device 100 mounted on the emergency vehicle 10 and reception devices 200 and 210 mounted on the general vehicles 20 and 21, respectively. And relay devices 300 and 310 arranged in the radio facilities 30 and 31 installed on the road. Relay device 300 and relay device 310 are connected via network 500.

  The configuration of the transmission device 100 is the same as the configuration of the transmission device of the first embodiment or the transmission device of the second embodiment. However, the wireless transmission unit 104 of the transmission device 100 has a function of performing wireless communication with the relay device 300 and wirelessly transmits emergency vehicle information acquired from the control unit 103 to the relay device 300.

  The configuration of receiving apparatus 200 is the same as that of the receiving apparatus according to the first embodiment. However, the wireless reception unit 201 of the reception device 200 has a function of performing wireless communication with the relay device 300, and when receiving emergency vehicle information from the relay device 300, notifies the determination unit 203 of the received emergency vehicle information. In addition, the configuration of the receiving device 210 is the same as the configuration of the receiving device 200.

  Since the configurations and operations of relay devices 300 and 310 are the same, the configuration and operation of relay device 300 will be described below as a representative.

  The relay device 300 includes a wireless communication unit 301, a processing unit 302, and a wired communication unit 303. The processing unit 302 is realized by, for example, an LSI configured by a logic circuit or the like, or a CPU or DSP that operates according to a program, and the wireless communication unit 301 and the wired communication unit 303 are an LSI configured by, for example, a logic circuit or the like. It is realized by. In addition, the relay device 300 stores in advance address information such as the location information of the own device, the map information around the own device, and the IP (Internet Protocol) address of the relay device located in the vicinity of the own device. It is registered.

  The wireless communication unit 301 has a function of performing wireless communication with the transmission device 100 of the emergency vehicle 10 and the reception device 200 of the general vehicle 20 by, for example, wireless LAN or DSRC, and the emergency transmission vehicle from the wireless transmission unit 104 of the transmission device 100. When the information is received, the received emergency vehicle information is notified to the processing unit 302.

  When the processing unit 302 acquires the emergency vehicle information from the wireless communication unit 301, the emergency vehicle position information, the emergency vehicle direction information and the emergency vehicle route information included in the acquired emergency vehicle information, and the position information of the own device registered in advance. Whether or not the emergency vehicle 10 approaches the relay device 300 is determined based on the map information.

  For example, the processing unit 302 includes a road on which the relay device 300 is installed or a road that intersects with a road on which the relay device 300 is installed in the travel route of the emergency vehicle 10, and the current position of the emergency vehicle 10 and the relay device 300. When the distance between them is equal to or less than the predetermined value, it is determined that the emergency vehicle 10 approaches the relay device 300. Further, for example, when the emergency vehicle information is not included in the emergency vehicle information, the emergency vehicle 10 travels on the road where the relay device 300 is installed toward the relay device 300, and the current position of the emergency vehicle 10 When the distance between the relay device 300 and the relay device 300 is equal to or less than a predetermined value, or the emergency vehicle 10 travels on the road intersecting the road where the relay device 300 is installed toward the intersection, the emergency vehicle 10 When the distance between the current position and the relay device 300 is equal to or less than a predetermined value, it is determined that the emergency vehicle 10 approaches the relay device 300.

  And only when it determines with the emergency vehicle 10 approaching the relay apparatus 300, the process part 302 receives the emergency vehicle information via the wireless communication part 301, and the receiving apparatus of the general vehicle which is drive | working within the wireless communication range Wirelessly transmit to.

  In addition, when the processing unit 302 acquires emergency vehicle information from the wireless communication unit 301, the processing unit 302 transfers the acquired emergency vehicle information to a relay device other than its own device in which address information is registered in advance via the wired communication unit 303. .

  The wired communication unit 303 has a function of communicating with a relay device other than its own device via the network 500.

  Next, processing procedures of the transmission device 100, the reception devices 200 and 210, and the relay devices 300 and 310 when the emergency vehicle 10 travels urgently in the emergency vehicle information notification system shown in FIG. 4 will be described.

  FIG. 5 is a sequence diagram showing processing procedures of the transmission device 100, the reception devices 200 and 210, and the relay devices 300 and 310 when the emergency vehicle 10 travels urgently in the emergency vehicle information notification system shown in FIG.

  In the sequence diagram shown in FIG. 5, address information of the relay device 310 is registered in advance in the relay device 300 as a relay device located in the vicinity of the own device, and the general vehicle 20 is within the wireless communication range of the relay device 300. It is assumed that the general vehicle 21 is traveling within the wireless communication range of the relay device 310.

  The processes in steps S21 to S23 are the same as the processes in steps S1 to S3 in the sequence diagram shown in FIG. However, in step S23, the wireless transmission unit 104 of the transmission device 100 wirelessly transmits emergency vehicle information to the wireless communication unit 301 of the relay device 300.

  When emergency vehicle information is received from the wireless transmission unit 104 of the transmission device 100, the wireless communication unit 301 of the relay device 300 notifies the processing unit 302 of the received emergency vehicle information.

  When the emergency vehicle information is acquired from the wireless communication unit 301, the processing unit 302 transfers the acquired emergency vehicle information to the relay device 310 via the wired communication unit 303 (step S24).

  Further, the processing unit 302 determines that the emergency vehicle 10 approaches the relay device 300 based on the emergency vehicle position information and the emergency vehicle direction information (or emergency vehicle route information), and the position information and map information of the own device registered in advance. It is determined whether or not to perform (step S25). And if it determines with the emergency vehicle 10 approaching the relay apparatus 300, emergency vehicle information will be wirelessly transmitted to the receiver 200 of the general vehicle 20 via the wireless communication part 301 (step S26).

  When emergency vehicle information is received from the wireless communication unit 301 of the relay device 300, the wireless reception unit 201 of the reception device 200 notifies the determination unit 203 of the received emergency vehicle information. The processes in steps S27 and S28 are the same as the processes in steps S4 and S5 in the sequence diagram shown in FIG.

  On the other hand, the wired communication unit 313 of the relay device 310 that has received the emergency vehicle information from the wired communication unit 303 of the relay device 300 notifies the processing unit 312 of the received emergency vehicle information.

  When the emergency vehicle information is acquired from the wired communication unit 313, the processing unit 312 is based on the emergency vehicle position information, the emergency vehicle direction information (or emergency vehicle route information), the own device position information, and the map information around the own device. Then, it is determined whether or not the emergency vehicle 10 approaches the relay device 310 (step S29). And if it determines with the emergency vehicle 10 approaching the relay apparatus 310, emergency vehicle information will be wirelessly transmitted to the receiver 210 of the general vehicle 21 via the wireless communication part 311 (step S30).

  When the emergency vehicle information is received from the radio communication unit 311 of the relay device 310, the radio unit of the reception device 210 notifies the control unit of the own device of the received emergency vehicle information. Note that the processing in steps S31 and S32 is the same as the processing in steps S4 and S5 in the sequence diagram shown in FIG.

  After that, the control unit 103 of the transmission device 100 generates emergency vehicle information including new emergency vehicle position information and emergency vehicle direction information acquired from the positioning unit 102 at predetermined time intervals, via the wireless transmission unit 104. Wireless transmission to the relay device 300. Thereby, the process of step S23-S32 is implemented for every predetermined time.

  As described above, according to the present embodiment, the relay device determines whether or not the emergency vehicle approaches the own device based on the emergency vehicle position information and the emergency vehicle route information, and the emergency vehicle becomes the own device. Only when it is determined that the vehicle is approaching, emergency vehicle information is wirelessly transmitted to the receiving device. Thereby, since the relay device relays the emergency vehicle information transmitted from the transmission device, it is possible to report emergency travel of the emergency vehicle to general vehicles existing in a wide range. Further, since the emergency traveling of the emergency vehicle is reported only to the receiving device mounted on the general vehicle traveling in the area where the emergency vehicle is approaching, the load of the determination process of each receiving device can be reduced.

(Fourth embodiment)
In the third embodiment, a wireless facility equipped with a relay device is installed on a road, and a transmitting device mounted on an emergency vehicle via the relay device sends emergency vehicle information to a receiving device mounted on a general vehicle. An example of wireless transmission has been described. In the fourth embodiment, an example in which the transmission device wirelessly transmits emergency vehicle information to the reception device via the center device will be described.

  FIG. 6 is a block diagram showing the configuration of the emergency vehicle information reporting system in the fourth embodiment.

  As shown in FIG. 6, the emergency vehicle information reporting system according to the fourth embodiment is installed on a road, a transmission device 100 mounted on an emergency vehicle 10, a reception device 200 mounted on a general vehicle 20, and the like. In addition, a relay device 300 and a center device 400 are provided in the wireless facility 30. The relay device 300 and the center device 400 are connected via the network 500.

  The configuration of the transmission device 100 is the same as the configuration of the transmission device of the first embodiment or the transmission device of the second embodiment. However, the wireless transmission unit 104 of the transmission device 100 has a function of performing wireless communication with the center device 400, and wirelessly transmits emergency vehicle information received from the control unit 103 to the center device 400. Since the center device 400 may not exist near the emergency vehicle 10, as a means for wireless communication, for example, a police radio capable of long-distance communication, a fire fighting radio, a wireless communication means used in a mobile phone, etc. Is used.

  The configuration of the receiving apparatus 200 is the same as that of the receiving apparatus according to the third embodiment.

  The configuration of the relay device 300 is the same as the configuration of the relay device according to the third embodiment. However, the wired communication unit 303 of the relay device 300 has a function of communicating with the center device 400 via the network 500.

  The center device 400 includes a wireless unit 401, a selection unit 402, and a wired unit 403. The selection unit 402 is realized by, for example, an LSI configured by a logic circuit or the like, or a CPU or DSP that operates according to a program, and the wireless unit 401 and the wired unit 403 are realized by an LSI configured by, for example, a logic circuit or the like. Is done. Further, in the center device 400, location information and address information of a relay device included in the emergency vehicle information notification system and map information of an area managed by the center device 400 are registered in advance by the operator.

  The wireless unit 401 has a function of performing wireless communication with the transmission device 100 of the emergency vehicle 10 by wireless communication means used in, for example, police wireless, fire fighting wireless, and mobile phones, and the emergency vehicle is transmitted from the wireless transmission unit 104 of the transmission device 100. When the information is received, the received emergency vehicle information is notified to the selection unit 402.

  When the selection unit 402 acquires emergency vehicle information from the radio unit 401, the emergency vehicle position information, the emergency vehicle direction information and the emergency vehicle route information included in the acquired emergency vehicle information, and the position information of the relay device registered in advance and Based on the map information, the relay device that the emergency vehicle 10 approaches is selected.

  For example, the selection unit 402 is installed on a road included in the travel route of the emergency vehicle 10 or a road that intersects with a road included in the travel route of the emergency vehicle 10, and the distance from the current position of the emergency vehicle 10 is a predetermined value. The following relay device is selected as the relay device that the emergency vehicle 10 approaches. Further, for example, when the emergency vehicle information is not included in the emergency vehicle information, the emergency vehicle information is installed on the traveling direction side of the emergency vehicle 10 on the road on which the emergency vehicle 10 is traveling, and between the current position of the emergency vehicle 10 The distance between the current position of the emergency vehicle 10 installed on a relay device whose distance is equal to or less than a predetermined value, or a road where the emergency vehicle 10 travels and a road that intersects the traveling direction side of the emergency vehicle 10 Is selected as a relay device that the emergency vehicle 10 approaches.

  When the relay device that the emergency vehicle 10 approaches is selected, the selection unit 402 transfers the emergency vehicle information to the selected relay device via the wired unit 403.

  The wired unit 403 has a function of communicating with a relay device included in the emergency vehicle information reporting system via the network 500.

  Next, processing procedures of the transmission device 100, the reception device 200, the relay device 300, and the center device 400 when the emergency vehicle 10 travels urgently in the emergency vehicle information notification system shown in FIG. 6 will be described.

  FIG. 7 is a sequence diagram illustrating processing procedures of the transmission device 100, the reception device 200, the relay device 300, and the center device 400 when the emergency vehicle 10 travels urgently in the emergency vehicle information notification system shown in FIG.

  In the sequence diagram illustrated in FIG. 7, it is assumed that the emergency vehicle 10 approaches the relay device 300 and the general vehicle 20 is traveling within the wireless communication range of the relay device 300.

  The processing in steps S41 to S43 is the same as the processing in steps S1 to S3 in the sequence diagram shown in FIG. However, in step S <b> 43, the wireless transmission unit 104 of the transmission device 100 wirelessly transmits emergency vehicle information to the wireless unit 401 of the center device 400.

  When the emergency vehicle information is received from the wireless transmission unit 104 of the transmission device 100, the wireless unit 401 of the center device 400 notifies the selection unit 402 of the received emergency vehicle information.

  When the emergency vehicle information is acquired from the wireless unit 401, the selection unit 402, based on the emergency vehicle position information and the emergency vehicle direction information (or emergency vehicle route information), and the position information and map information of the relay device registered in advance, A relay device that the emergency vehicle 10 approaches is selected (step S44). And if the relay apparatus 300 is selected as a relay apparatus which the emergency vehicle 10 approaches, the selection part 402 will transfer emergency vehicle information to the relay apparatus 300 via the wired part 403 (step S45).

  When the emergency vehicle information is received from the wired unit 403 of the center device 400, the wired communication unit 303 of the relay device 300 notifies the processing unit 302 of the received emergency vehicle information. Then, the processing unit 302 wirelessly transmits the acquired emergency vehicle information to the receiving device 200 via the wireless communication unit 301 (step S46).

  When emergency vehicle information is received from the wireless communication unit 301 of the relay device 300, the wireless reception unit 201 of the reception device 200 notifies the determination unit 203 of the received emergency vehicle information. Note that the processing in steps S47 to S48 is the same as the processing in steps S4 to S5 in the sequence diagram shown in FIG.

  After that, the control unit 103 of the transmission device 100 generates emergency vehicle information including new emergency vehicle position information and emergency vehicle direction information acquired from the positioning unit 102 at predetermined time intervals, via the wireless transmission unit 104. Wireless transmission to the center device 400 is performed. Thereby, the process of step S43-S48 is implemented for every predetermined time.

  As described above, according to the present embodiment, the center device selects the relay device that the emergency vehicle approaches based on the emergency vehicle position information and the emergency vehicle route information, and wirelessly transmits the emergency vehicle information to the selected relay device. Send. Thereby, the emergency traveling of the emergency vehicle can be reported to a general vehicle existing in a wider range.

DESCRIPTION OF SYMBOLS 10 Emergency vehicle 20, 21 General vehicle 100 Transmission apparatus 101 Input part 102 Positioning part 103 Control part 104 Wireless transmission part 105 Audio | voice output part 106 Image display part 200, 210 Reception apparatus 201 Wireless reception part 202 Position calculation part 203 Determination part 204 Output Unit 205 map display unit 206 information display unit 207 audio reproduction unit 30, 31 wireless equipment 300, 310 relay device 301, 311 wireless communication unit 302, 312 processing unit 303, 313 wired communication unit 400 center device 401 wireless unit 402 selection unit 403 Wired part 500 network

Claims (9)

An emergency vehicle information reporting system for reporting emergency vehicle emergency travel,
A transmitting device that is mounted on an emergency vehicle and wirelessly transmits emergency vehicle information including emergency vehicle position information indicating a current position of the emergency vehicle and emergency vehicle direction information indicating a traveling direction of the emergency vehicle when the emergency vehicle is in an emergency travel When,
When mounted on a general vehicle and receiving the emergency vehicle information, the emergency vehicle position information, the emergency vehicle direction information, the general vehicle position information indicating the current position of the general vehicle, and the general vehicle direction indicating the traveling direction of the general vehicle Based on the information, it is determined whether or not the emergency vehicle and the general vehicle approach each other, and only when it is determined that the emergency vehicle and the general vehicle approach each other, the emergency vehicle travels the emergency vehicle. A receiving device for reporting to,
Emergency vehicle information reporting system. In the emergency vehicle information reporting system according to claim 1,
The transmission device has a function of receiving a radio wave transmitted from a GPS satellite, and generates the emergency vehicle position information and the emergency vehicle direction information based on the radio wave,
The receiving device has a function of receiving a radio wave transmitted from a GPS satellite, and generates the general vehicle position information and the general vehicle direction information based on the radio wave. In the emergency vehicle information reporting system according to claim 1 or 2,
When the destination information indicating the destination of the emergency vehicle is input to the transmission device, an emergency vehicle route indicating a travel route to the destination of the emergency vehicle based on the destination information and the emergency vehicle position information Information is generated, and when the emergency vehicle travels urgently, emergency vehicle information further including the emergency vehicle route information is wirelessly transmitted,
Upon receiving the emergency vehicle information, the receiving device, based on the emergency vehicle route information in addition to the emergency vehicle position information, the emergency vehicle direction information, the general vehicle position information, and the general vehicle direction information, An emergency vehicle information reporting system for determining whether or not a vehicle and the general vehicle approach each other. In the emergency vehicle information reporting system according to claim 3,
When the emergency vehicle information is received from the transmission device, the emergency vehicle is sent to the own device based on the emergency vehicle position information, the emergency vehicle direction information, the emergency vehicle route information, and the preset position information of the own device. Only when it is determined whether or not the emergency vehicle approaches the own device, it further includes a relay device that wirelessly transmits the emergency vehicle information to the receiving device,
The transmission device is an emergency vehicle information reporting system that wirelessly transmits the emergency vehicle information to the relay device. In the emergency vehicle information reporting system according to claim 3,
A plurality of relay devices capable of wireless communication with the receiving device;
When the emergency vehicle information is received from the transmission device, the emergency vehicle approaches based on the emergency vehicle position information, the emergency vehicle direction information, the emergency vehicle route information, and preset position information of each relay device. A center device for selecting a relay device and transferring the emergency vehicle information to the selected relay device;
Further comprising
The transmission device wirelessly transmits the emergency vehicle information to the center device,
When the relay device receives the emergency vehicle information from the center device, the relay device wirelessly transmits the emergency vehicle information to the receiving device. In the emergency vehicle information reporting system according to any one of claims 3 to 5,
The receiving device determines that the emergency vehicle and the general vehicle do not approach when the general vehicle is located behind the current position of the emergency vehicle with respect to the traveling direction of the emergency vehicle, and the emergency vehicle An emergency vehicle information reporting system characterized by not reporting the traveling to a passenger of the general vehicle. In the emergency vehicle information reporting system according to any one of claims 3 to 6,
The receiving device determines that the emergency vehicle and the general vehicle do not approach when the traveling direction of the general vehicle is a direction away from the travel route of the emergency vehicle, and performs the emergency traveling of the emergency vehicle by the emergency vehicle. Emergency vehicle information reporting system, characterized by not reporting to passengers. An emergency vehicle including emergency vehicle position information indicating the current position of the emergency vehicle and emergency vehicle direction information indicating a traveling direction of the emergency vehicle, which is wirelessly transmitted from the transmission device mounted on the emergency vehicle when the emergency vehicle travels in an emergency A receiving device mounted on a general vehicle for receiving information,
Wireless receiving means for receiving the emergency vehicle information;
The emergency vehicle position information and the emergency vehicle direction information included in the emergency vehicle information received by the wireless reception means, general vehicle position information indicating the current position of the general vehicle, and a general direction indicating the traveling direction of the general vehicle Determining means for determining whether or not the emergency vehicle and the general vehicle approach based on vehicle direction information;
Only when it is determined by the determination means that the emergency vehicle and the general vehicle are approaching, an output means for notifying an occupant of the general vehicle of an emergency travel of the emergency vehicle;
A receiving apparatus. An emergency vehicle information reporting method in an emergency vehicle information reporting system for reporting emergency driving of an emergency vehicle,
When the emergency vehicle travels urgently, the transmitting device mounted on the emergency vehicle wirelessly transmits emergency vehicle information including emergency vehicle position information indicating the current position of the emergency vehicle and emergency vehicle direction information indicating the traveling direction of the emergency vehicle. Send
When the receiving device mounted on the general vehicle receives the emergency vehicle information, the emergency vehicle position information, the emergency vehicle direction information, the general vehicle position information indicating the current position of the general vehicle, and the traveling direction of the general vehicle are displayed. Based on the general vehicle direction information shown, it is determined whether or not the emergency vehicle and the general vehicle are close to each other, and only when it is determined that the emergency vehicle and the general vehicle are close, Notify the vehicle passengers,
Emergency vehicle information reporting method.

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