JP2014003565A - Traffic information distribution system and distribution method of high priority information toward specific area thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide "a traffic information distribution system and a distribution method of high priority information toward a specific area thereof" for distributing emergency information of disaster with high locality accurately and quickly, and delivering the emergency information surely to a driver.SOLUTION: In the traffic information distribution system for transmitting the traffic information to registered vehicles V from a server 102 for managing the traffic information, some registered vehicles V1 include, respectively, means for receiving broadcast from a broadcast station A for specific area, and means for determining whether or not the broadcast thus received is related to high priority information toward a specific area, and means for transmitting the high priority information toward a specific area to the server upon reception. The server 102 has means for transmitting the high priority information toward a specific area, for the registered vehicles in the specific area.

Description

  The present invention relates to a traffic information distribution system for transmitting traffic information from a server that manages traffic information to a registered vehicle, and more particularly to a method for distributing high priority information for disasters and other specific areas in the system. .

  Development of intelligent transport systems (ITS) using information technology is thriving. As an information providing system for distributing traffic information in ITS, VICS (Vehicle Information and Communication System: registered trademark) is widely known, but in VICS (registered trademark), a light or radio wave beacon installed on a road, Alternatively, since information is provided for a traveling vehicle through FM multiplex broadcasting, there is a problem of information provision for a vehicle that is not in such a reception environment.

  Against this background, in recent years, a system called telematics has been developed and operated to provide traffic information, weather forecasts, and other information to vehicles in a wider area using mobile communication networks such as mobile phones. Yes. Telematics has the advantage of providing real-time and highly accurate information by collecting travel information from vehicles registered in the system, that is, information such as the speed and number of times the brake is used at each travel point. It is expected to be used to provide highly urgent information such as disasters and accidents in specific areas.

  On the other hand, when using such telematics to provide emergency information having a high notification priority such as a disaster or accident (hereinafter sometimes referred to as “high priority information”), there are the following problems. In other words, when information on disasters and accidents that occurred in a specific area is distributed nationwide, it is not only useless information for vehicle users traveling outside that area, but it unnecessarily increases communication traffic, especially In the event of a disaster, the impact is a concern. Also, when disaster information for a specific area is distributed from the central server, accurate and detailed area information is collected, edited, and distributed by a person who is not in that area, which takes time. As a result, there is a problem that the immediacy and reliability of information is lost.

  In addition, as a means of providing highly regional disasters and traffic information to mobiles, the use of VHF-LOW band multimedia broadcasting accompanying the full digitization of terrestrial television broadcasting is being studied. The VHF-LOW band multimedia broadcast realizes the digital broadcast for each region by using 90 to 108 MHz used in the analog broadcast. Since the content in this broadcast is created by the operator for each local block, if it is used for emergency information such as highly localized disasters and traffic information, accurate and prompt provision of information can be expected. .

  However, on the other hand, in the provision of high priority information by VHF-LOW band multimedia broadcasting, the driver is not listening to the broadcasting in real time, that is, the receiver is turned off, and the reception of the broadcasting is not performed. If you are traveling in a difficult area, listening to other broadcast channels, or if your vehicle does not have a broadcast receiver itself, that is urgent and high priority information. Nevertheless, there is a problem that information cannot be transmitted to such a driver.

  Regarding the distribution of emergency information, Patent Documents 1 to 3 exist.

JP 2010-93660 A JP 2008-295002 A JP 2010-171896 A

  However, none of the documents discloses a method for solving the above problem. In other words, it does not disclose a method for delivering emergency information such as highly regional disasters accurately and promptly and reliably delivering it to the driver.

  The present invention has been made to solve the above-mentioned problems, and a traffic information distribution system for distributing emergency information such as highly regional disasters accurately and promptly and reliably to a driver and the system. It provides a method for distributing high priority information for a specific area.

  In the traffic information distribution system for transmitting traffic information from a server that manages traffic information to a registered vehicle, a part of the registered vehicle receives a broadcast from a broadcasting station for a specific area. Means for determining whether the received broadcast is related to high priority information for a specific area; and means for transmitting the information to the server when receiving a broadcast related to high priority information for a specific area. And the server includes means for transmitting high priority information for the specific area to a registered vehicle in the specific area.

  Preferably, in the present invention, each of the registered vehicles has means for transmitting the traveling information to the server, and the server should transmit the high priority information for the specific area based on the received traveling information. Means for determining a registered vehicle;

  Preferably, in the present invention, each of the registered vehicles has means for transmitting to the server information related to whether broadcast reception from the broadcast station for the specific area is possible, and whether the server receives the broadcast received. And a means for determining a registered vehicle to which the high-priority information for the specific area is to be transmitted based on the information related to the vehicle and the travel information.

  Preferably, in the present invention, the high-priority information for a specific area transmitted by the part of the registered vehicle to the server includes the reception frequency information, and the server receives information on whether the broadcast can be received. Means for determining a registered vehicle that is capable of receiving a broadcast from the broadcasting station for the specific area, but not receiving the high priority information, from the information of the transmission source of the high priority information for the specific area; Means for transmitting broadcast frequency information of the high priority information to the determined registered vehicle.

  Preferably, the server includes means for converting the received high priority information for the specific area into a format suitable for transmission for a registered vehicle. Preferably, the high priority information is emergency information relating to the disaster or other specific area.

  The present invention also provides a high-priority information distribution method for a specific area in a traffic information distribution system that transmits the traffic information from a server that manages traffic information to a registered vehicle. Receiving a broadcast from a target broadcast station, determining whether the received broadcast is related to high priority information for a specific area, and receiving a broadcast related to high priority information for a specific area, Transmitting information to the server, wherein the server has a step of transmitting high priority information for the specific area to a registered vehicle in the specific area.

  Preferably, each registered vehicle has a step of transmitting the traveling information to the server, and the server is configured to transmit a registered vehicle to which the high priority information for the specific area is to be transmitted based on the received traveling information. Determining.

   Preferably, each of the registered vehicles has a step of transmitting information related to whether or not broadcast reception from the broadcast station for the specific area is possible to the server, and the server receives information related to whether or not the broadcast can be received. And determining a registered vehicle to which the high priority information for the specific area is to be transmitted based on the travel information.

  Preferably, the high-priority information for specific area transmitted by the part of the registered vehicle to the server includes the reception frequency information, and the server receives the information regarding the availability of the broadcast reception and the specific Determining a registered vehicle that is capable of receiving a broadcast from the broadcasting station for the specific area, but not receiving the high priority information, from the information of the transmission source of the high priority information for the area; Transmitting broadcast frequency information of the high priority information to the registered vehicle.

  According to the present invention, high-priority information transmitted from a specific area that is detailed and highly reliable is immediately transmitted to each registered vehicle traveling in the target area via a server related to the traffic information distribution system. It will be. As a result, the high priority information can be reliably acquired even in a vehicle that has not received or cannot receive the broadcast, and the reliability of information transmission can be greatly improved.

  In addition, in the registered vehicle, it is determined whether or not the broadcast can be received from the broadcast station for the specific area, and for the vehicle capable of reception, by notifying the reception frequency instead of the high priority information, from the server The total amount of transmission data can be reduced, and the problem of communication traffic that is a concern during disasters can be suppressed.

It is the conceptual diagram which showed the whole image of the traffic information delivery system which concerns on one Example of this invention. It is a functional block diagram which shows the structure of an information delivery server. It is a functional block diagram which shows the structure of a vehicle-mounted communication apparatus. It is a chart figure showing an information transmission process between information distribution server 102 and registration vehicles V1-V3 when an emergency broadcast is distributed from broadcasting station A, and a processing flow in each device.

   Next, embodiments of the present invention will be described in detail with reference to the drawings. In the following, an embodiment will be described according to an example in which the present invention is constructed on a system for realizing telematics.

  FIG. 1 is a conceptual diagram showing an overview of a traffic information distribution system according to an embodiment of the present invention. In the figure, a traffic information distribution system 100 has one information distribution server 102 that collects and manages traffic information and distributes it to a registered vehicle V. The information distribution server 102 periodically accesses the VICS center, acquires the traffic information collected here, collects real-time travel information from the registered vehicle V, and analyzes and distributes the traffic to be distributed. Generate information.

  Each registered vehicle V is equipped with an in-vehicle communication device, which will be described later, through which travel information (vehicle position information, vehicle speed / acceleration information, brake usage status, wiper usage status, etc.) Transmit to the information distribution server 102. Such traveling information is called floating car data (FCD) or probe car data (PCD). Information communication between the information distribution server 102 and each registered vehicle V is performed through packet communication through a mobile phone network, and is realized by connecting a mobile phone or a data communication card to the in-vehicle communication device.

  In the figure, broadcasting stations A to C are broadcasting stations that distribute information for a specific area by VHF-LOW band multimedia broadcasting. Each broadcasting station A to C distributes general information such as music and regional information, and also distributes information with higher urgency and regional characteristics such as disaster information, weather information, and traffic information that occurred in the target area. Such information includes, for example, emergency warning broadcasts that notify emergency warnings such as earthquake warnings and tsunami warnings, congestion information, accident information, weather information such as guerrilla heavy rain, and high priority information such as road surface information.

  Some registered vehicles V include a broadcast receiver linked to the in-vehicle communication device, and can receive broadcasts distributed by the broadcast stations A to C. Therefore, when emergency information is distributed from these broadcasting stations, three types of reception modes are assumed for the registered vehicle V with respect to the reception. That is, (1) a vehicle having a broadcast receiver and receiving the emergency information (hereinafter referred to as “emergency broadcast receiving vehicle”, referred to as V1 in the figure), and (2) a broadcast receiver. However, a vehicle that has not received the emergency information (hereinafter referred to as “emergency broadcast non-reception vehicle”, referred to as V2 in the figure), a vehicle that does not have a broadcast receiver and cannot receive emergency information (hereinafter referred to as “emergency broadcast non-reception vehicle”). , Referred to as “Vehicle without receiver”, and denoted as V3 in the figure). The broadcast reception status in each registered vehicle is periodically transmitted to the information distribution server 102.

Under such a premise, when the emergency information is broadcast from the broadcasting station A, the information transmission flow according to the present invention is roughly as follows. That is,
(1) The emergency information from the broadcasting station A is received by the emergency broadcast receiving vehicle V1 traveling in the reception area. At this time, the drivers of the emergency broadcast unreceived vehicle V2 and the receiver non-equipped vehicle V3 do not know the emergency information.
(2) When the vehicle V1 receives emergency information, the information and information on the reception frequency are immediately transmitted to the information distribution server 102.
(3) When the information distribution server 102 receives the emergency information, the target area of the emergency information is determined from the information of the transmission source vehicle and the like, and the vehicle traveling in the area is found.
(4) Then, the received emergency information is converted into a telematics format and transmitted to the vehicle V3 not equipped with a receiver.
(5) On the other hand, the emergency information reception frequency is transmitted to the emergency broadcast non-receiving vehicle V2.
(6) When the receiver non-equipped vehicle V3 receives the emergency information from the information distribution server 102, an interruption occurs in the in-vehicle communication device, and the emergency information is immediately reproduced for the driver.
(7) When the emergency broadcast non-reception vehicle V2 receives the reception frequency information from the information distribution server 102, an in-vehicle communication device is interrupted, and the emergency broadcast is immediately distributed to the driver at that frequency. Notify that.

  Through the above processing, the emergency information is distributed to all the registered vehicles V traveling in the broadcasting area of the broadcasting station A. In this case, since the emergency information itself is not transmitted to the emergency broadcast non-receiving vehicle V2, the total communication traffic amount between the information distribution server 102 and the registered vehicle V is minimized.

  Next, details of the in-vehicle communication device mounted on the information distribution server and each registered vehicle will be described. FIG. 2 is a functional block diagram showing the configuration of the information distribution server, and FIG. 3 is a functional block diagram showing the configuration of the in-vehicle communication device.

  In FIG. 2, the information distribution server 200 includes a communication unit 202 for establishing communication between the VICS center and each registered vehicle, a VICS information acquisition unit 204 for periodically acquiring VICS information collected at the VICS center, and registration. Floating car data collection unit 206 that collects travel information from the vehicle, traffic information analysis unit 208 that analyzes the acquired VICS information and floating car data, and an emergency information processing unit that processes emergency information transmitted from the registered vehicle 210, a storage unit 212 that stores various execution programs, various types of data such as analysis results and history information, intermediate data generated when the program is executed, and a control unit 214 that controls the entire system. Each of these functions can be realized by executing a program related to information distribution on a general-purpose computer having a CPU, a memory, a communication function, and the like. For the purpose of load reduction, failure risk distribution and other purposes, the information distribution server 200 may be composed of a plurality of server groups installed at a single location or at multiple locations.

  The VICS Center collects national traffic information from prefectural police and road managers, where it is processed and edited. The VICS information acquisition unit 204 is connected to the VICS center through the communication unit 202 at intervals of several minutes, and acquires the latest road traffic information. The floating car data collection unit 206 acquires and collects real-time travel information from each registered vehicle. The travel information acquired in connection with the present invention includes position coordinate information of the vehicle, and based on this information, it is determined which broadcast station the vehicle is in. Each registered vehicle transmits information related to the reception state of the broadcast from the specific area broadcasting station. As described above, this reception status information distinguishes whether the vehicle is an “emergency broadcast receiving vehicle”, “emergency broadcast non-reception vehicle”, or “receiver non-receiver vehicle”. Identification information to be included.

  As described above, communication between the information distribution server 200 and each registered vehicle is realized via a mobile phone communication network. Therefore, communication between the server and the vehicle can be established at any time as long as the vehicle is traveling in the receivable area of the communication network. Basically, the information acquired and collected from the registered vehicle has not only high real-time performance and reliability, but also has a characteristic that its target area is much wider than information from the VICS center. The traffic information collected from the VICS center and each registered vehicle is sent to the traffic information analysis unit 208, where it is analyzed and processed, and distributed to each registered vehicle throughout the country via the communication unit 202.

  The information distribution server 200 includes an emergency information processing unit 210. The emergency information processing unit 210 is a function for distributing emergency information sent from a specific registered vehicle to registered vehicles in the target area, and includes an emergency information acquisition unit 216, an information format conversion unit 218, An emergency information delivery vehicle determination unit 220 and an emergency information delivery unit 222 are provided. The emergency information acquisition unit 216 monitors information sent from the registered vehicle, and identifies emergency information distributed from a broadcast station for a specific area. As will be described later, the identification of emergency information is determined by the identification flag prepared in the transmission data. The information format conversion unit 218 converts the data related to the received emergency information into a data format used in telematics. In one embodiment, the data from the registered vehicle conforms to the ISDB-TSB (Integrated Services Digital Broadcasting-Terrestrial for Sound Broadcasting) system, and the information format conversion unit 218 uses this for a communication system used by a predetermined mobile phone. For example, the data is converted into a data format used in W-CDMA (Wideband Code Division Multiple Access) or CDMA2000.

  The emergency information distribution vehicle determination unit 220 determines a registered vehicle to which the received emergency information is to be distributed. For this determination, reference is made to the information on the reception state of the broadcast from the broadcast station transmitted from each registered vehicle. That is, a vehicle determined to be a vehicle not equipped with a receiver based on the information is determined as a vehicle to which the emergency information is to be distributed, and a vehicle determined to be a vehicle that has not received the emergency information is distributed with the frequency information of the broadcast. Determine the vehicle to be used. The emergency information distribution unit 222 transmits the data related to the emergency information to the vehicle not equipped with the receiver via the communication unit 202 according to the determination in the emergency information distribution vehicle determination unit 220, and also transmits the data related to the broadcast frequency to the emergency broadcast Send to unreceived vehicles.

  Next, an in-vehicle communication device mounted on each on-vehicle device will be described. FIG. 3 is a functional block diagram showing the configuration of the in-vehicle communication device. The in-vehicle communication device 300 shown here is a device having a receiving function for receiving a broadcast from a broadcasting station for a specific area. In the figure, an in-vehicle communication device 300 receives a signal from a GPS satellite and detects a position of the own vehicle, a GPS receiver 302, a communication unit 304 mainly for establishing a connection with an information distribution server, and an input from a user. An input unit 306 including a touch panel to receive, an audio output unit 308 that outputs sound to a speaker, an information display unit 310 for displaying information on a display, a program, setting data, user data, and a temporary generated as the program is executed A storage unit 312 for storing data, a broadcast receiving unit 314 for receiving a digital broadcast from a broadcasting station for a specific area, an emergency information transmitting unit 316 for transmitting emergency information from the broadcasting station to an information distribution server, information Traffic information reception processing unit 320 for receiving and reproducing traffic information from a distribution server, information distribution server It is configured to include a control unit 324 for controlling each unit by executing the emergency information processing unit 322, and the program for reproducing handling emergency information et transmitted. Although not shown here, the in-vehicle communication device 300 may be provided with functions such as a navigation function for guiding the vehicle toward a specific destination and a multimedia reproduction function for reproducing media data such as video and audio.

  The communication unit 304 includes a connection interface for a mobile phone or a data communication card. By connecting a mobile phone or the like to the in-vehicle communication device 300 via the connection interface, the in-vehicle communication device 300 communicates with the information distribution server. Is designed to be possible. That is, the in-vehicle communication device 300 is uniquely specified by an IP address provided in a mobile phone or the like, and the information distribution server can distribute specific information toward a specific vehicle.

  A broadcast receiving unit 314 for receiving a broadcast from a broadcasting station receives a receiving antenna 326, a tuning unit 328 that tunes a receiving frequency in accordance with a user's channel selection, extracts a digital signal from the received signal, and performs error correction. A signal demodulating / error correcting unit 330 for restoring the transmission packet, a demultiplexing unit 332 for separating the packet according to its purpose, and an MPEG decoding unit 334 for combining the audio signal from the audio packet are configured. The broadcast receiving unit 314 is optionally attached to the in-vehicle communication device 300, and as described above, some registered vehicles are not equipped with this.

  The emergency information transmission unit 316 includes an emergency information determination program 336 and an emergency information transmission program 338. The emergency information determination program 336 identifies information related to emergency alerts such as earthquake early warnings and tsunami warnings from information distributed from broadcasting stations. The data packet from the broadcast station includes a flag for identifying whether or not the packet is related to an emergency warning, and the emergency information determination program 336 reads this flag and acquires the data. . When the emergency information determination program 336 confirms the reception of emergency information, the emergency information transmission program 338 interrupts the system and immediately transmits the data to the information distribution server.

  The vehicle information transmission unit 318 includes a travel information transmission program 340 for transmitting travel information to the information distribution server, and a broadcast reception state transmission program 342 that transmits a reception state in the broadcast reception unit 314. The travel information transmission program 340 includes the vehicle ID, time information, latitude / longitude information of the vehicle from the GPS receiver 302, travel road information based on the map data, speed / acceleration information from the speed / accelerometer, and other vehicles. Various travel information such as various sensors mounted is transmitted to the information distribution server at a predetermined event cycle (for example, a combination of a 600 second cycle, every 300 m travel, transmission / stop of the vehicle, etc.). The broadcast reception state transmission program 342 transmits information related to the reception state of the broadcast from the broadcast station to the information distribution server. As described above, this reception status information distinguishes whether the vehicle is an “emergency broadcast receiving vehicle”, “emergency broadcast non-reception vehicle”, or “receiver non-receiver vehicle”. Identification information to be included.

  The traffic information reception processing unit 320 includes an information type determination program 344 that determines the type of traffic information from the information distribution server, and a traffic information output program 346 that outputs the received traffic information to the driver. . The information type determination program 344 determines the type of information based on the identification flag included in the data packet from the information distribution server. The types of information identified here include, for example, traffic jam information, accident information, disaster information such as heavy rain and freezing information, and high-priority emergency information distributed from the broadcast station or reception frequency information of the broadcast Is included. When the received information is emergency information distributed from a broadcast station, or when it is reception frequency information of the emergency broadcast, the process is handed over to the emergency information processing unit 322. The other information is processed by the traffic information output program 346 and provided to the driver through the information display unit 310 and the voice output unit 308 provided in the system.

  The emergency information processing unit 322 is operated in response to an emergency information output processing request from the traffic information reception processing unit 320, and includes an emergency information reproduction program 348 and an emergency information notification program 350. When the data from the information distribution server is related to the emergency broadcast from the broadcasting station, the emergency information reproduction program 350 interrupts the system and immediately transmits the information through the information display unit 310 and the audio output unit 308. Provide to the driver. As described above, the transmission of emergency information from the information distribution server is provided to a vehicle that does not include the broadcast receiving unit 314, that is, a driver who cannot hear the emergency broadcast.

  On the other hand, when the data from the information distribution server is related to the frequency information of the emergency broadcast, the emergency information notification program 350 interrupts the system and immediately passes through the information display unit 310 and the audio output unit 308 to that effect. That is, the driver is prompted to receive the emergency broadcast at the frequency (or channel). As described above, the transmission of the emergency broadcast frequency information from the information distribution server is provided to a driver who has the broadcast receiving unit 314 but has not heard the broadcast. In a preferred embodiment, the broadcast receiving unit 314 can be controlled to turn on its power and automatically select the target channel, and if it is difficult to receive the broadcast, It can also be configured such that the distribution server can request transmission of the information itself.

  Next, an information transmission process in the traffic information distribution system when an emergency broadcast is distributed from a broadcasting station in a specific area to the target area will be described. FIG. 4 is a chart showing the information transmission process between the information distribution server 102 and the registered vehicles V1 to V3 and the processing flow in each device when an emergency broadcast is distributed from the broadcasting station A. Each of these symbols corresponds to FIG.

  In the figure, it is assumed that an emergency broadcast is distributed from the broadcasting station A for a specific area (step S400). This broadcast is received by the emergency broadcast receiving vehicle V1 traveling in the target area (step S402). Each emergency broadcast receiving vehicle V1 determines whether the received information relates to emergency information (step S404). If so, the emergency information transmission unit 316 shown in FIG. The information and its reception frequency information are immediately transmitted to the information distribution server 102 (step S406).

  When the information distribution server 102 receives the emergency information and the reception frequency information from the emergency broadcast receiving vehicle V1 (step S408), the information distribution server 102 determines whether it is related to the emergency information from the broadcasting station (step S410). In this case, the emergency information processing unit 210 shown in FIG. That is, the received data relating to emergency information is converted into a telematics format (step S412), and then the registered vehicle to which the information or the frequency information is to be distributed is determined (step S414). Then, the information on the frequency related to the emergency broadcast is transmitted to the emergency broadcast unreceived vehicle V2 (step S416), while the converted emergency information is transmitted to the vehicle V3 not equipped with the receiver (step S416). Step S418).

  Upon receiving information from the information distribution server 102 (step S420), the emergency broadcast unreceived vehicle V2 determines whether it is frequency information related to emergency broadcast (step S422). If so, it is shown in FIG. Then, the emergency information processing unit 322 performs processing to notify the vehicle driver of the frequency information (step S424).

  On the other hand, when receiving information from the information distribution server 102 (step S426), the vehicle V3 not equipped with a receiver determines whether it is emergency information (step S428), and if so, the emergency information processing unit 322 Then, the emergency information is processed to be output to the vehicle driver (step S430).

  Through the above processing, the emergency information is distributed to all the registered vehicles V traveling in the broadcasting area of the broadcasting station A. In this case, since the emergency information itself is not transmitted to the emergency broadcast non-receiving vehicle V2, the total communication traffic amount between the information distribution server 102 and the registered vehicle V is minimized.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments, and various modifications and changes can be made within the scope of the gist of the invention described in the claims. It can be changed. In the above-described embodiment, the present invention has been described along with an example in which an emergency broadcast such as a disaster is distributed to the target vehicle in the embodiment, but the information to be distributed is not limited to such, and is a community-based type in normal times It may be information such as traffic jam information and information on road closures.

A to C: Broadcasting station V1: Emergency broadcast receiving vehicle V2: Emergency broadcast non-receiving vehicle V3: Vehicle not equipped with receiver 200: Information distribution server 202: Communication unit 204: VICS information acquisition unit 206: Floating car data collection unit 208: Traffic information analysis unit 210: emergency information processing unit 212: storage unit 214: control unit 216: emergency information acquisition unit 218: information format conversion unit 220: emergency information distribution vehicle determination unit 222: emergency information distribution unit 300: in-vehicle communication device 302 : GPS receiver 304: Communication unit 306: Input unit 308: Audio output unit 310: Information display unit 308: Audio output unit 310: Information display unit 316: Emergency information transmission unit 318: Vehicle information transmission unit 320: Traffic information reception processing Unit 322: Emergency information processing unit 324: Control unit 326: Reception antenna 328: Channel selection unit 330: Signal demodulation / Error correction unit 332: Demultiplexing unit 334: MPEG decoding unit 336: Emergency information determination program 338: Emergency information transmission program 340: Travel information transmission program 342: Broadcast reception state transmission program 344: Information type determination program 346: Traffic information output program 348: Emergency information reproduction program 350: Emergency information notification program 350: Emergency information reproduction program

Claims (10)

In a traffic information distribution system for transmitting traffic information to a registered vehicle from a server that manages traffic information,
Means for receiving a broadcast from a broadcast station for a specific area, a means for determining whether the received broadcast relates to high priority information for a specific area, and a high priority information for a specific area; Means for transmitting the information to the server when receiving the broadcast according to
The server includes means for transmitting high priority information for the specific area to a registered vehicle in the specific area.
Traffic information distribution system. Each of the registered vehicles has means for transmitting the travel information to the server,
The traffic information distribution system according to claim 1, wherein the server includes means for determining a registered vehicle to which the high priority information for the specific area is to be transmitted based on the received travel information. Each of the registered vehicles has means for transmitting to the server information related to whether broadcast reception from the broadcast station for the specific area is possible,
The traffic information according to claim 2, wherein the server includes means for determining a registered vehicle to which the high priority information for the specific area is to be transmitted based on the received information on whether the broadcast can be received and the travel information. Distribution system. The high priority information for a specific area that a part of the registered vehicle transmits to the server includes its reception frequency information,
The server is capable of receiving a broadcast from the broadcast station for the specific area, based on the received information on whether the broadcast can be received and the information on the transmission source of the high priority information for the specific area. The traffic information distribution system according to claim 3, comprising means for determining a registered vehicle that has not received information, and means for transmitting broadcast frequency information of the high priority information to the determined registered vehicle. . The traffic information distribution system according to claim 1, wherein the server has means for converting the received high priority information for the specific area into a format suitable for transmission for a registered vehicle. The traffic information distribution system according to claim 1, wherein the high priority information is emergency information related to a disaster or other specific area. In a distribution method of high priority information for a specific area in a traffic information distribution system that transmits the traffic information to a registered vehicle from a server that manages the traffic information,
Receiving a broadcast from a broadcast station for a specific area in a part of the registered vehicle, determining whether the received broadcast is related to high priority information for a specific area, and high priority information for a specific area When receiving the broadcast according to the method, the step of transmitting the information to the server,
The server includes a step of transmitting high priority information for the specific area to a registered vehicle in the specific area.
A method for distributing high priority information for a specific area in a traffic information distribution system. In each of the registered vehicles, the vehicle has a step of transmitting the traveling information to the server,
The high priority information for a specific area in the traffic information distribution system according to claim 7, further comprising: determining a registered vehicle to which the high priority information for the specific area is to be transmitted based on the received travel information. Delivery method. In each of the registered vehicles, the information on whether or not broadcast reception from the broadcast station for the specific area is transmitted to the server,
9. The traffic information according to claim 8, further comprising a step of determining a registered vehicle to which the high priority information for the specific area is to be transmitted based on the received information regarding whether the broadcast can be received and the traveling information. A distribution method of high priority information for a specific area in a distribution system. The high priority information for a specific area that a part of the registered vehicle transmits to the server includes its reception frequency information,
In the server, it is possible to receive a broadcast from the broadcast station for the specific area, based on the received information regarding whether the broadcast can be received and the information on the transmission source of the high priority information for the specific area. The traffic information distribution according to claim 9, comprising: determining a registered vehicle that has not received information; and transmitting broadcast frequency information of the high priority information to the determined registered vehicle. A method of distributing high priority information for a specific area in the system.

Images