JP2017212579A - Communication device and mobile communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication device and a mobile communication device that can keep down a processing load or communication load in a configuration to perform processing related to a vehicle.SOLUTION: A communication device is a communication device installed on a roadside or a mobile communication apparatus. The communication device includes: an information creation unit for creating transmission information including identification information indicating a type of region the communication device is situated; and a transmission unit for wirelessly transmitting the transmission information created by the information creation unit.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a communication device and a mobile communication device, and more particularly to a communication device and a mobile communication device that perform traffic-related processing.

  2. Description of the Related Art In recent years, an in-vehicle communication device has been developed that acquires information related to a vehicle from an in-vehicle communication device of another vehicle by vehicle-to-vehicle communication, and performs safe driving support based on the acquired information.

  Here, there is a low possibility that the vehicles located far away from each other will collide with each other. Therefore, in such an in-vehicle communication device, information about a vehicle located far away is often unnecessary.

  For example, in Patent Document 1 (Japanese Patent Laid-Open No. 2010-183178), information is transmitted to an in-vehicle communication device of a vehicle having a large distance from the host vehicle at a lower frequency than when the distance from the host vehicle is small. Techniques to do this are disclosed. That is, the in-vehicle communication device is an in-vehicle communication device used in a wireless communication system in which a plurality of communication devices perform broadcast-type data transmission via a common wireless channel, and the transmission data is used as a transmission signal for wireless transmission. Transmission means for converting and transmitting wirelessly, and transmission control for periodically changing the communication distance of the transmission data by controlling transmission parameters when the transmission means converts transmission data into a transmission signal for wireless transmission Means.

JP 2010-183178 A

Radio Industry Association of Japan, “700MHz Band Intelligent Transport System ARIBSTD-T109 Version 1.0”, [online], formulated on February 14, 2012, [Search on March 17, 2016], Internet <URL : http://www.arib.or.jp/english/html/overview/doc/1-STD-T109v1_0.pdf>

  By the way, even if the distance between the vehicles is short, there is a possibility that the possibility of collision with each other is low. If the in-vehicle communication device of the host vehicle receives information from the in-vehicle communication device of another vehicle, it is not necessary to perform unnecessary processing if the possibility of a collision with the other vehicle can be easily determined. The processing load on the machine can be reduced.

  Further, in Japan, it is considered that inter-vehicle communication is performed according to the communication method described in Non-Patent Document 1, but in this communication method, for example, a period during which the in-vehicle communication device can transmit information is limited. Therefore, it is desirable to reduce the communication load.

  This invention was made in order to solve the above-mentioned subject, The objective is the communication apparatus and mobile communication apparatus which can suppress processing load or the communication load in the structure which performs the process regarding a vehicle. Is to provide.

  (1) In order to solve the above-described problem, a communication device according to an aspect of the present invention is a communication device installed on a roadside or a mobile communication device, and a type of an area where the communication device is located. An information creation unit that creates transmission information including identification information indicating the transmission information, and a transmission unit that wirelessly transmits the transmission information created by the information creation unit.

  (12) In order to solve the above problems, a mobile communication device according to an aspect of the present invention includes an information creation unit that creates transmission information, an acquisition unit that acquires position information of the mobile communication device of itself, Based on the position information acquired by the acquisition unit, a determination unit that determines a type of an area in which the mobile communication device is located, and the mobile communication device is positioned in a specific type of region by the determination unit. Wirelessly transmitting the transmission information when it is determined that the mobile communication device is not located in the specific type area by the determination unit. A transmission unit that cancels transmission.

  (13) A mobile communication device according to another aspect of the present invention is acquired by an information creation unit that creates transmission information, an acquisition unit that acquires position information of the mobile communication device of itself, and the acquisition unit. Based on the position information, a determination unit that determines a type of an area where the mobile communication device is located, and the determination unit determines that the mobile communication device is located in a specific type of region. The transmission information is wirelessly transmitted according to the first communication method, and the transmission information is transmitted when the determination unit determines that the mobile communication device is not located in the specific type area. A transmission unit that wirelessly transmits in accordance with a second communication method different from the first communication method.

  (14) A mobile communication device according to another aspect of the present invention is included in a reception unit that receives transmission information wirelessly transmitted from another communication device, and the transmission information received by the reception unit. A processing unit that determines processing contents of the transmission information according to identification information indicating a type of an area where the other communication device is located.

  The present invention can be realized not only as a communication device including such a characteristic processing unit, but also as a method using such characteristic processing as a step, or a program for causing a computer to execute such a step. Can be realized. Also, it can be realized as a semiconductor integrated circuit that realizes part or all of the communication device, or as a system including the communication device.

  The present invention can be realized not only as a mobile communication device including such a characteristic processing unit, but also as a method using such characteristic processing as a step, or for causing a computer to execute such a step. Or as a program. Also, it can be realized as a semiconductor integrated circuit that realizes part or all of the mobile communication device, or as a system including the mobile communication device.

  ADVANTAGE OF THE INVENTION According to this invention, in the structure which performs the process regarding a vehicle, a processing load can be suppressed or a communication load can be suppressed.

FIG. 1 is a diagram showing a configuration of a communication system according to the first embodiment of the present invention. FIG. 2 is a flowchart showing region management processing of the in-vehicle communication device in the communication system according to the first embodiment of the present invention. FIG. 3 is a flowchart showing reception processing by the in-vehicle communication device in the communication system according to the first embodiment of the present invention. FIG. 4 is a diagram showing a configuration of the in-vehicle communication device in the communication system according to the first embodiment of the present invention. FIG. 5 is a diagram showing a configuration of a communication system according to the second embodiment of the present invention. FIG. 6 shows the configuration of the in-vehicle communication device in the communication system according to the second embodiment of the present invention. FIG. 7 is a diagram showing a configuration of a communication system according to the third embodiment of the present invention. FIG. 8 is a diagram showing the configuration of the in-vehicle communication device in the communication system according to the third embodiment of the present invention. FIG. 9 is a diagram showing a configuration of a communication system according to the fourth embodiment of the present invention. FIG. 10 is a diagram showing the configuration of the in-vehicle communication device in the communication system according to the fourth embodiment of the present invention. FIG. 11 is a diagram showing a configuration of a communication system according to the fifth embodiment of the present invention. FIG. 12 is a diagram showing a configuration of a communication system according to the sixth embodiment of the present invention.

  First, the contents of the embodiment of the present invention will be listed and described.

  (1) A communication device according to an embodiment of the present invention is a communication device installed on a roadside or a mobile communication device, and includes transmission information including identification information indicating a type of an area where the communication device is located. An information creation unit that creates information, and a transmission unit that wirelessly transmits the transmission information created by the information creation unit.

  As described above, the configuration in which the communication device transmits the transmission information including the identification information of the region can notify the other communication device of the type of the region in which the communication device is located. By determining the necessary processing based on the type of region, it is possible to suppress the occurrence of unnecessary processing. Therefore, the processing load can be suppressed in the configuration that performs processing related to the vehicle.

  (2) Preferably, the area includes a communication device including a road.

  With such a configuration, it is possible to notify other communication devices that the communication device is located on the road.

  (3) More preferably, the area includes a specific road.

  With such a configuration, it is possible to notify other communication devices that the communication device is located on a specific road.

  (4) More preferably, the area includes a general road.

  With such a configuration, it is possible to notify other communication devices that the communication device is located on a general road.

  (5) More preferably, the area includes a highway.

  With such a configuration, it is possible to notify other communication devices that the communication device is located on the highway.

  (6) Preferably, the area includes a specific facility.

  With such a configuration, it is possible to notify other communication devices that the communication device is located in a specific facility.

  (7) Preferably, the communication device is a mobile communication device.

  With such a configuration, the destination area can be notified to other communication devices.

  (8) More preferably, the communication device further determines a type of the region based on an acquisition unit that acquires position information of the communication device of itself and the position information acquired by the acquisition unit. A determination unit, and the information creation unit determines the identification information based on a determination result by the determination unit.

  With such a configuration, for example, identification information indicating its own accurate position can be created based on position information acquired from GPS.

  (9) More preferably, the communication device further includes a reception unit that receives distribution information transmitted from a roadside facility, and the information creation unit is configured to receive the distribution information received by the reception unit. Determine identification information.

  With such a configuration, identification information indicating its own accurate position can be created based on distribution information from roadside equipment.

  (10) Preferably, the transmission information is broadcast information.

  With such a configuration, identification information can be notified to a plurality of communication devices without individually establishing communication connections with other communication devices.

  (11) Preferably, the transmission information is wirelessly transmitted according to the ARIB standard.

  With such a configuration, it is possible to suppress the processing load on the vehicle in the traffic system according to the ARIB standard.

  (12) A mobile communication device according to an embodiment of the present invention includes an information creation unit that creates transmission information, an acquisition unit that acquires position information of the mobile communication device of itself, and the acquisition unit acquired by the acquisition unit. Based on the position information, a determination unit that determines a type of an area where the mobile communication device is located, and the determination unit determines that the mobile communication device is located in a specific type of region. A transmission unit that wirelessly transmits the transmission information, and when the determination unit determines that the mobile communication device is not located in the area of the specific type, Is provided.

  As described above, when the mobile communication device is located in a specific type of region, the configuration in which transmission information is not transmitted can save radio resources and reduce the processing load on the receiving communication device. be able to.

  (13) A mobile communication device according to an embodiment of the present invention includes an information creation unit that creates transmission information, an acquisition unit that acquires position information of the mobile communication device of itself, and the acquisition unit that acquires the position information of the mobile communication device. Based on the position information, a determination unit that determines a type of an area where the mobile communication device is located, and the determination unit determines that the mobile communication device is located in a specific type of region. The transmission information is wirelessly transmitted according to a first communication method, and the transmission information is transmitted when the determination unit determines that the mobile communication device is not located in the specific type area. A transmission unit that wirelessly transmits in accordance with a second communication method different from the first communication method.

  With such a configuration, the two communication methods can be switched according to the type of the region in which the mobile communication device is located. Therefore, for example, concentration of communication traffic in one communication system can be prevented. Therefore, the communication load can be suppressed in the configuration for performing the process related to the vehicle.

  (14) A mobile communication device according to an embodiment of the present invention includes: a reception unit that receives transmission information wirelessly transmitted from another communication device; and the other included in the transmission information received by the reception unit A processing unit that determines the processing content of the transmission information according to identification information indicating a type of an area where the communication device is located.

  With such a configuration, for example, it is possible to determine whether or not to perform processing for supporting driving of the vehicle depending on whether or not another communication device is located in a specific region. Unnecessary processing can be suppressed compared to the case where the processing is always performed regardless of the area where the communication device is located.

  (15) Preferably, the mobile communication device further includes an acquisition unit that acquires position information of the mobile communication device of the mobile communication device, and the mobile communication device of the mobile communication device based on the position information acquired by the acquisition unit. A determination unit that determines a type of an area where the mobile communication device is located, and the processing unit matches the type of the mobile communication device determined by the determination unit and the type indicated by the identification information, A safety support process is performed using the transmission information received by the receiving unit.

  From such a configuration, for example, when mobile communication devices and other communication devices are respectively mounted on vehicles, vehicles located in the same type of region are likely to collide with each other to assist in driving the vehicle. Can be accurately performed.

  (16) Preferably, the mobile communication device further includes an acquisition unit that acquires position information of the mobile communication device of the mobile communication device, and the mobile communication device of the mobile communication device based on the position information acquired by the acquisition unit. A determination unit that determines a type of an area in which the mobile station is located, and the processing unit does not match the type of the mobile communication device determined by the determination unit and the type indicated by the identification information, The transmission information received by the receiving unit is discarded.

  With such a configuration, for example, when mobile communication devices and other communication devices are respectively mounted on vehicles, it is assumed that vehicles located in different types of regions are not likely to collide with each other. Can be minimized.

  (17) Preferably, the processing unit uses the transmission information received by the reception unit when the transmission information does not include the identification information or the content of the identification information is unknown. Perform support processing.

  With such a configuration, for example, the process for supporting the driving of the vehicle can be reliably performed except when it can be determined based on the identification information that there is no possibility of a collision.

  (18) Preferably, the area includes a road, the receiving unit receives the transmission information according to a first communication method, and the mobile communication device further acquires position information of the mobile communication device of itself. And a determination unit that determines a type of an area where the mobile communication device is located based on the position information acquired by the acquisition unit, and the processing unit is determined by the determination unit. A second communication method different from the first communication method when the type of the mobile communication device that has been identified matches the type indicated by the identification information and the type is other than a specific road To communicate with the other communication device.

  With such a configuration, for example, when the mobile communication device and other communication devices are both located in the same facility, for example, it is possible to switch to a communication method with a sufficient communication capacity or a communication method with a higher communication speed. .

  (19) Preferably, the area includes a road.

  With such a configuration, it can be recognized that the mobile communication device is located on the road.

  (20) More preferably, the area includes a specific road.

  With such a configuration, it can be recognized that the mobile communication device is located on a specific road.

  (21) More preferably, the area includes a general road.

  With such a configuration, it can be recognized that the mobile communication device is located on a general road.

  (22) More preferably, the area includes a highway.

  With such a configuration, it can be recognized that the mobile communication device is located on the highway.

  (23) Preferably, the area includes a specific facility.

  With such a configuration, it can be recognized that the mobile communication device is located in a specific facility.

  (24) Preferably, the transmission information is broadcast information.

  With such a configuration, it is possible to receive identification information from a plurality of communication devices without individually establishing communication connections with other communication devices.

  (25) Preferably, the transmission information is wirelessly transmitted according to the ARIB standard.

  With such a configuration, it is possible to suppress the processing load on the vehicle in the traffic system according to the ARIB standard.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated. Moreover, you may combine arbitrarily at least one part of embodiment described below.

<First Embodiment>
FIG. 1 is a diagram showing a configuration of a communication system according to the first embodiment of the present invention.

  With reference to FIG. 1, the communication system 101 includes a plurality of in-vehicle communication devices 15.

  The in-vehicle communication device 15 is a communication device mounted on a vehicle, specifically, a mobile communication device. An in-vehicle communication device 15 is mounted on the host vehicle 10 and the other vehicle 11. The in-vehicle communication device 15 may be configured to be fixedly mounted on the vehicle, or may be configured to be removable from the vehicle.

  Here, the host vehicle 10 and one other vehicle 11 are located on the general road 2, and another vehicle 11 different from the other vehicle 11 is located in the parking lot 1. Hereinafter, the other vehicle 11 located on the general road 2 is also referred to as another vehicle 11R, and the other vehicle 11 located in the parking lot 1 is also referred to as other vehicle 11P.

  The in-vehicle communication device 15 transmits vehicle information, which is information related to its own vehicle, to the in-vehicle communication device 15 of another vehicle. For example, the in-vehicle communication device 15 broadcasts its own vehicle information during a predetermined transmission period.

  Specifically, for example, the vehicle-mounted communication device 15 transmits its own vehicle information according to the ARIB standard described in Non-Patent Document 1, for example.

  Each in-vehicle communication device 15 recognizes its own position based on, for example, GPS information that is an example of position information. And the vehicle-mounted communication apparatus 15 judges the classification of the area | region in which self is located by referring the map information which the memory | storage part of self memorize | stores. For example, the in-vehicle communication device 15 determines whether or not it is located on a general road. And the vehicle-mounted communication apparatus 15 preserve | saves the information which shows the classification of the area | region in which it is located in an own memory | storage part as area | region identification information.

  Each in-vehicle communication device 15 transmits vehicle information including its own position and the speed of its own vehicle to the other in-vehicle communication device 15. At that time, the in-vehicle communication device 15 transmits the vehicle information including the area identification information stored in its storage unit.

  For example, the area identification information included in the vehicle information transmitted by the in-vehicle communication device 15 of the own vehicle 10 indicates that the in-vehicle communication device 15 of the own vehicle 10 is located on the “general road”.

  Further, the area identification information included in the vehicle information transmitted by the in-vehicle communication device 15 of the other vehicle 11R indicates that the in-vehicle communication device 15 of the other vehicle 11R is located on the “general road”.

  Moreover, the area | region identification information contained in the vehicle information which the vehicle-mounted communication apparatus 15 of the other vehicle 11P transmits shows that the vehicle-mounted communication apparatus 15 of the other vehicle 11P is located in "area | regions other than a general road", for example.

  When each vehicle-mounted communication device 15 receives vehicle information from another vehicle-mounted communication device 15, it performs processing related to safety support (hereinafter also referred to as safety support processing A) based on the received vehicle information.

  Specifically, for example, when the vehicle-mounted communication device 15 of the host vehicle 10 receives the vehicle information from the other vehicle 11, it is included in the region identification information stored in the storage unit of the host vehicle 10 and the vehicle information received from the other vehicle 11. Collate with region identification information. And the said vehicle-mounted communication apparatus 15 performs the safety assistance process A based on the received vehicle information, when these two area | region identification information corresponds.

  More specifically, for example, when the vehicle-mounted communication device 15 of the host vehicle 10 is located on the general road 2 and the two area identification information matches, the vehicle 10 and the other are used as the safety support processing A. The possibility of a collision with the vehicle 11 is calculated in detail, and when the possibility of a collision is high, the driver of the host vehicle 10 is cautioned.

  On the other hand, if the two area identification information does not match, the in-vehicle communication device 15 of the host vehicle 10 discards the vehicle information without performing the above-described processing related to safe driving support based on the received vehicle information. .

  FIG. 2 is a flowchart showing region management processing of the in-vehicle communication device in the communication system according to the first embodiment of the present invention.

  Each device in the communication system 101 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads and executes a program including a part or all of each step in the following flowchart from a memory (not shown). Each of the programs of the plurality of apparatuses can be installed from the outside. The programs of the plurality of apparatuses are distributed while being stored in a recording medium.

  With reference to FIG. 2, first, the vehicle-mounted communication device 15 confirms its own position based on, for example, GPS information (step S10).

  Next, the in-vehicle communication device 15 refers to the map information stored in its own storage unit to determine the type of the region where it is located (step S11).

  Next, the in-vehicle communication device 15 updates the region identification information stored in its own storage unit based on the determination result of the region type. Specifically, for example, the in-vehicle communication device 15 updates the region flag indicating the content of the region identification information in the storage region of the storage unit (step S12). For example, the region flag is “1” when the in-vehicle communication device 15 is located on the general road 2 and “0” in other cases. The in-vehicle communication device 15 performs such area management processing regularly or irregularly. The area identification information is included in a free area in the data structure of transmission information defined by the ARIB standard, for example.

  The region identification information is information indicating whether the in-vehicle communication device 15 of the host vehicle 10 is located on the “general road”, but is not limited thereto. For example, the area identification information may be information indicating whether or not the in-vehicle communication device 15 is simply located on the “road”, or “general road”, “one-lane general road”, “two-lane general-purpose information”. "Road", "General road more than 3 lanes", "Highway", "1-lane highway", "2-lane highway", "3-lane highway", "Private road", "Intersection", etc. It may be information indicating whether or not the vehicle is located on a specific road. The area identification information may be information indicating whether the in-vehicle communication device 15 is located in a specific facility such as “parking lot” or “commercial facility”.

  Further, the area identification information is not limited to 1-bit information indicating whether the in-vehicle communication device 15 is located on, for example, “general road”, and may be information of 2 bits or more. In this case, for example, the region identification information can indicate a plurality of types of regions such as “general road”, “highway”, or “parking lot”.

  FIG. 3 is a flowchart showing reception processing by the in-vehicle communication device in the communication system according to the first embodiment of the present invention.

  Here, although the reception time determination process performed by the in-vehicle communication device 15 of the host vehicle 10 will be described, the in-vehicle communication device 15 of the other vehicle 11 also performs the reception time processing in the same procedure.

  Referring to FIG. 3, first, vehicle-mounted communication device 15 of host vehicle 10 waits until vehicle information is received from vehicle-mounted communication device 15 of other vehicle 11 (NO in step S21).

  Next, when the vehicle-mounted communication device 15 of the host vehicle 10 receives the vehicle information from the vehicle-mounted communication device 15 of the other vehicle 11 (YES in step S21), the area identification information included in the received vehicle information and the own storage unit The stored area identification information is collated, and it is determined whether or not these two area identification information matches (step S22).

  Next, when the two area identification information matches (YES in step S22), the in-vehicle communication device 15 of the host vehicle 10 performs the safety support process A based on the received vehicle information (step S23). Specifically, for example, when the in-vehicle communication device 15 of the host vehicle 10 determines that both the host vehicle 10 and the other vehicle 11 are located on a general road based on the two area identification information, the safety support process is performed. Do A.

  On the other hand, if the two area identification information does not match (NO in step S22), the in-vehicle communication device 15 of the host vehicle 10 discards the received vehicle information without performing the safety support process A (step S24).

  FIG. 4 is a diagram showing a configuration of the in-vehicle communication device in the communication system according to the first embodiment of the present invention.

  With reference to FIG. 4, the in-vehicle communication device 15 includes an acquisition unit 21, a determination unit 22, a transmission unit 23, a processing unit 24, an information creation unit 25, a storage unit 26, and a reception unit 27. .

  Here, although the in-vehicle communication device 15 of the own vehicle 10 will be described, the in-vehicle communication device 15 of the other vehicle 11 has the same configuration as the in-vehicle communication device 15 of the own vehicle 10.

  For example, the acquisition unit 21 acquires GPS information from a GPS receiver mounted on the host vehicle 10 as information indicating the position of the own vehicle-mounted communication device 15. The acquisition unit 21 acquires speed information indicating the speed of the host vehicle 10 from a speed sensor mounted on the host vehicle 10. The acquisition unit 21 outputs the acquired GPS information and speed information to the acquisition unit 21 and the processing unit 24.

  The processing unit 24 stores the GPS information and speed information received from the acquisition unit 21 in the storage unit 26.

  Based on the GPS information acquired by the acquisition unit 21, the determination unit 22 determines the type of region in which the in-vehicle communication device 15 is located. Specifically, the determination unit 22 determines the region where the in-vehicle communication device 15 is located based on the GPS information received from the acquisition unit 21 and the map information stored in the storage unit 26. The determination unit 22 outputs the determination result of the area where the in-vehicle communication device 15 is located to the processing unit 24. The processing unit 24 stores the determination result received from the determination unit 22 in the storage unit 26.

  The information creation unit 25 determines region identification information indicating the type of region in which the in-vehicle communication device 15 is located based on the determination result of the region type by the determination unit 22, and vehicle information including the determined region identification information (Transmission information) is created. Specifically, the information creation unit 25 creates vehicle information including the position of the own vehicle-mounted communication device 15, the speed of the host vehicle 10, and area identification information based on various types of information stored in the storage unit 26. The information creation unit 25 creates vehicle information regularly or irregularly, and outputs the created vehicle information to the transmission unit 23.

  The transmission unit 23 wirelessly transmits the vehicle information created by the information creation unit 25 to the in-vehicle communication device 15 of the other vehicle 11. Specifically, for example, the transmission unit 23 wirelessly transmits the vehicle information received from the information creation unit 25 to the in-vehicle communication device 15 of the other vehicle 11 according to the ARIB standard.

  The receiving unit 27 receives vehicle information wirelessly transmitted from the in-vehicle communication device 15 of the other vehicle 11, and outputs the received vehicle information to the processing unit 24. The processing unit 24 determines a process to be performed according to the content of the vehicle information received from the receiving unit 27. For example, the processing unit 24 determines the processing content of the vehicle information according to the area identification information included in the vehicle information.

  For example, the processing unit 24 determines the type of the region in which the in-vehicle communication device 15 is determined as determined by the determination unit 22 and the type of region indicated by the region identification information included in the vehicle information from the other in-vehicle communication device 15. It is determined whether or not. When the region types match, the processing unit 24 uses the vehicle information from the other in-vehicle communication device 15 to perform a safety support process A that is a process for supporting the driving of the host vehicle 10.

  Specifically, the processing unit 24 checks the region identification information included in the vehicle information from the other in-vehicle communication device 15 with the region identification information stored in the storage unit 26, and these two region identification information matches. In this case, the safety support process A is performed.

  More specifically, for example, when the in-vehicle communication device 15 of the processing unit 24 is located on the general road 2, the processing unit 24 performs the safety support processing A when the two area identification information matches.

  For example, the processing unit 24 calculates the possibility of collision between the host vehicle 10 and the other vehicle 11 in detail as the safety support process A, and when the possibility of collision is high, the driver of the host vehicle 10 is displayed on a display (not shown). A process for displaying a warning is performed.

  On the other hand, the processing unit 24 determines the type of the region in which the in-vehicle communication device 15 is determined and the type of region indicated by the region identification information included in the vehicle information from the other in-vehicle communication device 15 determined by the determination unit 22. If they do not match, the vehicle information is discarded without performing the safety support process A based on the vehicle information.

  In the in-vehicle communication device 15 according to the first embodiment of the present invention, when the receiving unit 27 receives vehicle information from another in-vehicle communication device 15, the processing unit 24 has its own in-vehicle communication device 15. Is configured to determine whether or not the type of the region in which the vehicle is located and the type of the region indicated by the region identification information included in the vehicle information from the other in-vehicle communication device 15 match. It is not a thing.

  For example, when the processing unit 24 receives vehicle information from another in-vehicle communication device 15 when the region in which the in-vehicle communication device 15 is located is other than a general road, whether or not the type of the region matches. The vehicle information from the other in-vehicle communication device 15 may be discarded without determining the above.

  Moreover, even if the vehicle-mounted communication apparatus 15 which concerns on the 1st Embodiment of this invention is the structure which receives advertisement information, such as commercial facilities, from another apparatus, and displays the content of the received advertisement information on a display. Good. For example, the in-vehicle communication device 15 determines whether or not to display the content of the received advertisement information on the display based on the region where the own in-vehicle communication device 15 is located. Specifically, for example, when the in-vehicle communication device 15 is located in a specific facility and receives advertisement information regarding the specific facility, the in-vehicle communication device 15 displays the content of the advertisement information on the display.

  In the in-vehicle communication device 15 according to the first embodiment of the present invention, the transmission unit 23 is configured to transmit the vehicle information in accordance with the ARIB standard. However, the present invention is not limited to this. The configuration may be such that transmission is performed according to a communication method. For example, the transmission unit 23 may be configured to transmit vehicle information to the in-vehicle communication device 15 after establishing communication connection with the other in-vehicle communication device 15.

  Moreover, the vehicle-mounted communication apparatus 15 which concerns on the 1st Embodiment of this invention should just be the structure provided with the information preparation part 25 and the transmission part 23 at least. Specifically, any configuration may be used as long as the information creating unit 25 creates transmission information including identification information and the transmission unit 23 transmits the transmission information.

  By the way, even if the distance between the vehicles is short, there is a possibility that the possibility of collision with each other is low. If the in-vehicle communication device of the own vehicle receives vehicle information from the in-vehicle communication device of another vehicle, it is not necessary to perform unnecessary processing if the possibility of a collision with the other vehicle can be easily determined. The processing load on the communication device can be reduced.

  In Japan, vehicle-to-vehicle communication may be performed according to the communication method described in Non-Patent Document 1 in the future. In this communication method, for example, an in-vehicle communication device can transmit information. Since there are conditions such as a limited period, it is desirable to reduce the communication load.

  In contrast, in the in-vehicle communication device according to the first embodiment of the present invention, the information creating unit 25 creates vehicle information including region identification information indicating the type of region in which the in-vehicle communication device is located. . The transmission unit 23 wirelessly transmits the vehicle information created by the information creation unit 25.

  As described above, since the in-vehicle communication device transmits the vehicle information including the region identification information of the region, the type of the region where the in-vehicle communication device is located can be notified to the other communication device. Since the machine determines the necessary processing based on the type of the area, the generation of unnecessary processing can be suppressed.

  Therefore, in the in-vehicle communication device according to the first embodiment of the present invention, the processing load can be suppressed in the configuration for performing the processing related to the vehicle.

  In the communication system according to the first embodiment of the present invention, the region indicated by the region identification information includes a road.

  With such a configuration, it is possible to notify other communication devices that the in-vehicle communication device is located on the road.

  In the communication system according to the first embodiment of the present invention, the area indicated by the area identification information includes a specific road.

  With such a configuration, it is possible to notify other communication devices that the in-vehicle communication device is located on a specific road.

  In the communication system according to the first embodiment of the present invention, the region indicated by the region identification information includes a general road.

  With such a configuration, it is possible to notify other communication devices that the in-vehicle communication device is located on a general road.

  In the communication system according to the first embodiment of the present invention, the region indicated by the region identification information includes a highway.

  With such a configuration, it is possible to notify other communication devices that the in-vehicle communication device is located on the highway.

  In the communication system according to the first embodiment of the present invention, the area indicated by the area identification information includes a specific facility.

  With such a configuration, it is possible to notify other communication devices that the in-vehicle communication device is located in a specific facility.

  Moreover, the vehicle-mounted communication apparatus which concerns on the 1st Embodiment of this invention is a mobile communication apparatus.

  With such a configuration, the destination area can be notified to other communication devices.

  Moreover, in the vehicle-mounted communication apparatus which concerns on the 1st Embodiment of this invention, the acquisition part 21 acquires the GPS information of an own vehicle-mounted communication apparatus. Based on the GPS information acquired by the acquisition unit 21, the determination unit 22 determines the type of region in which the in-vehicle communication device is located. The information creation unit 25 determines area identification information based on the determination result by the determination unit 22.

  With such a configuration, for example, based on GPS information acquired from GPS, it is possible to create region identification information indicating its own accurate position.

  In the communication system according to the first embodiment of the present invention, the vehicle information is broadcast information.

  With such a configuration, the region identification information can be notified to a plurality of communication devices without individually establishing communication connections with other communication devices.

  In the communication system according to the first embodiment of the present invention, the vehicle information is wirelessly transmitted according to the ARIB standard.

  With such a configuration, it is possible to suppress the processing load on the vehicle in the traffic system according to the ARIB standard.

  In the in-vehicle communication device according to the first embodiment of the present invention, the receiving unit 27 receives vehicle information wirelessly transmitted from another communication device. The processing unit 24 changes the processing content of the vehicle information according to the region identification information indicating the type of region where the other communication device is located, which is included in the vehicle information received by the receiving unit 27.

  With such a configuration, for example, it is possible to determine whether or not to perform processing for supporting driving of the vehicle depending on whether or not another communication device is located in a specific region. Unnecessary processing can be suppressed compared to the case where the processing is always performed regardless of the area where the communication device is located.

  Therefore, in the in-vehicle communication device 15 according to the first embodiment of the present invention, the processing load can be suppressed in the configuration for performing the processing related to the vehicle.

  Moreover, in the vehicle-mounted communication apparatus which concerns on the 1st Embodiment of this invention, the acquisition part 21 acquires the GPS information of an own vehicle-mounted communication apparatus. Based on the GPS information acquired by the acquisition unit 21, the determination unit 22 determines the type of region in which the in-vehicle communication device is located. When the type of the vehicle-mounted communication device determined by the determination unit 22 matches the type indicated by the area identification information included in the vehicle information received by the reception unit 27, the processing unit 24 receives the reception unit 27. A safety support process is performed using the vehicle information received by.

  With such a configuration, for example, it is possible to accurately perform a process for supporting driving of vehicles, assuming that vehicles located in the same type of region may collide with each other.

  Moreover, in the vehicle-mounted communication apparatus which concerns on the 1st Embodiment of this invention, the acquisition part 21 acquires the GPS information of an own vehicle-mounted communication apparatus. Based on the GPS information acquired by the acquisition unit 21, the determination unit 22 determines the type of region in which the in-vehicle communication device is located. The processing unit 24 receives the reception unit 27 when the type of the in-vehicle communication device determined by the determination unit 22 does not match the type indicated by the area identification information included in the vehicle information received by the reception unit 27. The received vehicle information is discarded.

  With such a configuration, for example, it is possible to minimize processing related to received vehicle information, assuming that vehicles located in different types of regions do not have a risk of collision.

  Moreover, in the vehicle-mounted communication apparatus which concerns on the 1st Embodiment of this invention, the said area | region which the judgment part 22 judges contains a road.

  With such a configuration, it can be recognized that the in-vehicle communication device is located on the road.

  Moreover, in the vehicle-mounted communication apparatus which concerns on the 1st Embodiment of this invention, the said area | region which the judgment part 22 judges contains a specific road.

  With such a configuration, it can be recognized that the in-vehicle communication device is located on a specific road.

  Moreover, in the vehicle-mounted communication apparatus which concerns on the 1st Embodiment of this invention, the said area | region which the judgment part 22 judges contains a general road.

  Moreover, in the vehicle-mounted communication apparatus which concerns on the 1st Embodiment of this invention, it can recognize that a vehicle-mounted communication apparatus is located in a general road.

  Moreover, in the vehicle-mounted communication apparatus which concerns on the 1st Embodiment of this invention, the said area | region which the judgment part 22 judges includes a highway.

  With such a configuration, it can be recognized that the in-vehicle communication device is located on the highway.

  Moreover, in the vehicle-mounted communication apparatus which concerns on the 1st Embodiment of this invention, the said area | region which the judgment part 22 judges contains a specific facility.

  With such a configuration, it can be recognized that the in-vehicle communication device is located in a specific facility.

  Next, another embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

<Second Embodiment>
This embodiment relates to a communication system having a function of stopping the transmission of vehicle information by the in-vehicle communication device, as compared with the first embodiment of the present invention. The contents other than those described below are the same as those of the communication system according to the first embodiment.

  FIG. 5 is a diagram showing a configuration of a communication system according to the second embodiment of the present invention.

  Referring to FIG. 5, host vehicle 10, that is, vehicle-mounted communication device 15 mounted on host vehicle 10 is located in parking lot 1. When the vehicle-mounted communication device 15 of the host vehicle 10 is located in the parking lot 1, the vehicle information is not transmitted to the other vehicle 11.

  FIG. 6 shows the configuration of the in-vehicle communication device in the communication system according to the second embodiment of the present invention.

  With reference to FIG. 6, in the in-vehicle communication device 15, when the determination unit 22 determines that the in-vehicle communication device 15 is located on the general road 2, the transmission unit 23 transmits to the other in-vehicle communication device 15. Vehicle information is transmitted wirelessly. On the other hand, when the determination unit 22 determines that the in-vehicle communication device 15 is not located on the general road 2, the transmission unit 23 stops wireless transmission of vehicle information.

  Specifically, when receiving the vehicle information from the information creating unit 25, the transmission unit 23 confirms the area identification information included in the vehicle information, and whether or not the own in-vehicle communication device 15 is located on a general road. Determine. The transmission unit 23 determines whether or not to transmit the vehicle information according to the determination result of whether or not the in-vehicle communication device 15 is located on a general road.

  As described above, in the in-vehicle communication device according to the second embodiment of the present invention, the information creation unit 25 creates vehicle information. The acquisition unit 21 acquires GPS information of its own in-vehicle communication device. Based on the GPS information acquired by the acquisition unit 21, the determination unit 22 determines the type of region in which the in-vehicle communication device is located. The transmission unit 23 wirelessly transmits vehicle information when the determination unit 22 determines that its own in-vehicle communication device is located in a specific type of region. The wireless transmission of vehicle information is stopped when it is determined that the vehicle is not located in the type area.

  As described above, when the in-vehicle communication device is located in a specific type of region, the configuration in which vehicle information is not transmitted can save wireless resources and reduce the processing load on the receiving communication device. be able to.

  Therefore, in the vehicle-mounted communication device according to the second embodiment of the present invention, the processing load can be suppressed in the configuration that performs processing related to the vehicle.

  Since other configurations and operations are the same as those of the communication system according to the first embodiment, detailed description thereof will not be repeated here.

  Next, another embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

<Third Embodiment>
The present embodiment relates to a communication system in which a method for determining the type of region is different from that of the first embodiment of the present invention. The contents other than those described below are the same as those of the communication system according to the first embodiment.

  FIG. 7 is a diagram showing a configuration of a communication system according to the third embodiment of the present invention.

  Referring to FIG. 7, communication system 103 further includes roadside equipment 16 as compared with communication system 101 shown in FIG. 1.

  The roadside equipment 16 which is a communication device is installed near the entrance / exit of the parking lot 1, for example. The in-vehicle communication device 15 of the host vehicle 10 acquires the distribution information transmitted from the roadside facility 16, and recognizes the region where the vehicle is located based on the acquired information. The distribution information includes, for example, information indicating the installation location of the roadside facility 16 that is the transmission source.

  The roadside facility 16 is, for example, an ITS (Intelligent Transport Systems) spot, and transmits information by DSRC (Dedicated Short Range Communication).

  FIG. 8 is a diagram showing the configuration of the in-vehicle communication device in the communication system according to the third embodiment of the present invention.

  Referring to FIG. 8, receiving unit 27 receives the distribution information transmitted from roadside facility 16 and outputs the received distribution information to determination unit 22.

  Based on the distribution information received by the receiving unit 27, the determining unit 22 determines the type of the region where the in-vehicle communication device 15 is located. Specifically, based on the distribution information received from the receiving unit 27, the determining unit 22 determines, for example, whether or not its own in-vehicle communication device 15 is located in the “parking lot”. The determination unit 22 outputs the determination result of the type of the area where the in-vehicle communication device 15 is located to the processing unit 24. The processing unit 24 stores the determination result received from the determination unit 22 in the storage unit 26.

  Based on the distribution information received by the receiving unit 27, the information creating unit 25 determines area identification information indicating the type of area in which the in-vehicle communication device 15 is located. Specifically, the information creation unit 25 determines region identification information indicating the type of region where the in-vehicle communication device 15 is located based on the determination result of the region type by the determination unit 22, and determines the determined region identification. Create vehicle information including information.

  More specifically, the information creation unit 25 creates vehicle information including the position of the in-vehicle communication device 15, the speed of the host vehicle 10, and area identification information based on various types of information stored in the storage unit 26. The information creation unit 25 creates vehicle information regularly or irregularly, and outputs the created vehicle information to the transmission unit 23.

  In the in-vehicle communication device 15 according to the third embodiment of the present invention, the determination unit 22 determines the type of the region in which the own in-vehicle communication device 15 is located based solely on the distribution information received by the reception unit 27. However, the present invention is not limited to this.

  For example, the determination unit 22 is configured to determine the type of the region where the in-vehicle communication device 15 is located based on both the distribution information received by the reception unit 27 and the GPS information acquired by the acquisition unit 21. There may be.

  Further, in the communication system 103 according to the third embodiment of the present invention, the roadside equipment 16 is not limited to the vicinity of the entrance / exit of the parking lot 1, but may be configured to be installed along the general road 2, for example. Good. The roadside facility 16 may be an ETC (Electronic Toll Collection System) device installed on a highway. In this case, the determination unit 22 can determine whether or not its in-vehicle communication device 15 is located on the “highway” based on the distribution information transmitted from the ETC device and received by the reception unit 27. .

  Further, in the in-vehicle communication device 15 according to the third exemplary embodiment of the present invention, the determination unit 22 determines the type of the region where the own in-vehicle communication device 15 is located based on the distribution information received by the reception unit 27. Although it is determined that the area creation information is determined based on the determination result of the determination unit 22, the information creation unit 25 is not limited to this.

  For example, when the distribution information includes area identification information indicating the type of area where the roadside facility 16 is located, the information creating unit 25 determines its own area identification information based on the distribution information received by the receiving unit 27. It may be.

  Specifically, the roadside facility 16 creates distribution information (transmission information) including area identification information indicating the type of area in which it is located, and transmits the created distribution information. Specifically, the roadside facility 16 includes an information creation unit and a transmission unit, the information creation unit creates distribution information, and transmits the distribution information created by the transmission unit.

  In the in-vehicle communication device 15, when the receiving unit 27 receives the distribution information from the roadside equipment 16, the information creating unit 25 confirms the area identification information included in the received distribution information. The information creation unit 25 determines the area identification information by recognizing the type of the area where the roadside facility 16 indicated by the identification information is located as the type of the area where the in-vehicle communication device 15 is located.

  Further, in the in-vehicle communication device according to the third embodiment of the present invention, the receiving unit 27 receives the distribution information transmitted from the roadside facility 16. The information creation unit 25 determines area identification information based on the distribution information received by the reception unit 27.

  With such a configuration, it is possible to create region identification information indicating its own accurate position based on distribution information from roadside equipment.

  Since other configurations and operations are the same as those of the communication system according to the first embodiment, detailed description thereof will not be repeated here.

  Next, another embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

<Fourth embodiment>
The present embodiment relates to a communication system capable of communicating with a different communication method as compared with the first embodiment of the present invention. The contents other than those described below are the same as those of the communication system according to the first embodiment.

  FIG. 9 is a diagram showing a configuration of a communication system according to the fourth embodiment of the present invention.

  Referring to FIG. 9, communication system 104 further includes base station 17 as compared with communication system 101 shown in FIG. 1.

  The base station 17 is an access point in a wireless LAN, for example, and is installed in the parking lot 1. The parking lot 1 is included in the communicable area of the base station 17.

  The in-vehicle communication device 15 can perform both communication according to the ARIB standard (first communication method) and communication using a wireless LAN (second communication method), for example.

  For example, when the vehicle-mounted communication device 15 is located on the general road 2, the vehicle-mounted communication device 15 transmits information in accordance with, for example, the ARIB standard, and the vehicle-mounted communication device 15 is located in the parking lot 1 and the other vehicle-mounted communication device 15. Are located in the same parking lot 1, communication with the other in-vehicle communication device 15 is performed, for example, by a wireless LAN.

  Specifically, the in-vehicle communication device 15 transmits and receives information via the base station 17 when performing communication by wireless LAN.

  FIG. 10 is a diagram showing the configuration of the in-vehicle communication device in the communication system according to the fourth embodiment of the present invention.

  Referring to FIG. 10, when the determination unit 22 determines that its in-vehicle communication device 15 is located on a general road, the processing unit 24 transmits vehicle information according to, for example, the ARIB standard communication method. To decide.

  Specifically, when the area identification information stored in the storage unit 26 indicates that the in-vehicle communication device 15 is located on a general road, the processing unit 24 displays the vehicle information according to the communication method of the ARIB standard. The transmission is determined, and a notification indicating the determined content is output to the transmission unit 23.

  When receiving the notification from the processing unit 24, the transmission unit 23 transmits the vehicle information created by the information creation unit 25 according to the ARIB standard communication method according to the determination of the processing unit 24. For example, the transmission unit 23 broadcasts the vehicle information created by the information creation unit 25 during a predetermined transmission period.

  On the other hand, the processing unit 24 determines the type of the region in which the in-vehicle communication device 15 is determined and the type of region indicated by the region identification information included in the vehicle information from the other in-vehicle communication device 15 determined by the determination unit 22. And the types of these areas are other than “general roads”, it is determined to communicate with the other in-vehicle communication device 15 according to the wireless LAN communication method.

  Specifically, the processing unit 24 collates the region identification information included in the vehicle information from the other in-vehicle communication device 15 with the region identification information stored in the storage unit 26. When the two area identification information matches, the processing unit 24 determines whether or not the type of the area indicated by the two identification information is “general road”.

  When the type of the area indicated by the two identification information is other than “general road”, the processing unit 24 determines to perform communication with the other in-vehicle communication device 15 according to the wireless LAN communication method. Then, the processing unit 24 outputs a notification indicating the determination content to the transmission unit 23.

  When receiving the notification from the transmission unit 23, the transmission unit 23 transmits the vehicle information created by the information creation unit 25 according to the wireless LAN communication method. Specifically, for example, the transmission unit 23 transmits the vehicle information via the base station 17 after establishing a communication connection with another in-vehicle communication device 15.

  The in-vehicle communication device 15 according to the fourth embodiment of the present invention is configured to be capable of transmitting information according to the ARIB standard and transmitting information according to the wireless LAN communication method. It is not limited to. The in-vehicle communication device 15 may have a configuration capable of transmitting information according to one or more other communication methods.

  In the in-vehicle communication device according to the fourth embodiment of the present invention, the information creation unit 25 creates vehicle information. The acquisition unit 21 acquires GPS information of its own in-vehicle communication device. Based on the GPS information acquired by the acquisition unit 21, the determination unit 22 determines the type of region in which the in-vehicle communication device is located. The transmission unit 23 wirelessly transmits vehicle information according to the first communication method when the determination unit 22 determines that its own in-vehicle communication device is located in a specific type of region, and the determination unit 22 When it is determined that the in-vehicle communication device is not located in the specific type area, the vehicle information is wirelessly transmitted according to the second communication method.

  With such a configuration, the two communication methods can be switched according to the type of the region where the in-vehicle communication device is located, and therefore, for example, concentration of communication traffic in one communication system can be prevented.

  Therefore, in the in-vehicle communication device according to the fourth embodiment of the present invention, the communication load can be suppressed in the configuration in which the processing related to the vehicle is performed.

  Moreover, in the vehicle-mounted communication apparatus which concerns on the 4th Embodiment of this invention, the receiving part 27 receives vehicle information according to a 1st communication system. The acquisition unit 21 acquires GPS information of its own in-vehicle communication device. Based on the GPS information acquired by the acquisition unit 21, the determination unit 22 determines the type of region in which the in-vehicle communication device is located. If the type of the area of the in-vehicle communication device determined by the determination unit 22 matches the type of the area indicated by the area identification information and the type is other than a specific road, the processing unit 24 It decides to communicate with the communication device according to the second communication method.

  With such a configuration, for example, when both the in-vehicle communication device and the other communication devices are located in the same facility, it is possible to switch to, for example, a communication method with a sufficient communication capacity or a communication method with a higher communication speed. .

  Since other configurations and operations are the same as those of the communication system according to the first embodiment, detailed description thereof will not be repeated here.

  Next, another embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

<Fifth embodiment>
This Embodiment is related with a communication system provided with the vehicle-mounted communication apparatus which transmits the vehicle information which does not contain area | region identification information compared with the 1st Embodiment of this invention. The contents other than those described below are the same as those of the communication system according to the first embodiment.

  FIG. 11 is a diagram showing a configuration of a communication system according to the fifth embodiment of the present invention.

  With reference to FIG. 11, the communication system 105 includes an in-vehicle communication device 15 and a plurality of in-vehicle communication devices 115.

  A vehicle-mounted communication device 15 is mounted on the host vehicle 10, and a vehicle-mounted communication device 115 is mounted on the other vehicle 11.

  The in-vehicle communication device 15 and the in-vehicle communication device 115 transmit their vehicle information according to the ARIB standard, for example.

  Here, the vehicle information transmitted by the in-vehicle communication device 115 does not include area identification information. When the vehicle-mounted communication device 15 of the host vehicle 10 receives the vehicle information that does not include the area identification information, the vehicle-mounted communication device 15 performs a safety support process A that is a process for supporting the driving of the host vehicle 10 using the vehicle information. .

  FIG. 4 also shows the configuration of the in-vehicle communication device in the communication system according to the fifth embodiment of the present invention.

  With reference to FIG. 4, when the vehicle information received by the receiving unit 27 does not include the area identification information, the processing unit 24 performs the safety support process A using the vehicle information from the other in-vehicle communication device 15. Do.

  Specifically, when receiving the vehicle information from the receiving unit 27, the processing unit 24 determines whether or not the region identification information is included in the vehicle information. When the processing unit 24 determines that the area identification information is not included, the processing unit 24 performs the safety support process A based on the vehicle information.

  Even if it is determined that the region identification information is included in the vehicle information received by the reception unit 27, the processing unit 24 uses the vehicle information when the content of the region identification information is unknown. To perform safety support processing A.

  As described above, in the in-vehicle communication device according to the fifth embodiment of the present invention, the processing unit 24 does not include the region identification information in the vehicle information or the content of the region identification information is unknown. A safety support process is performed using the vehicle information received by the receiving unit 27.

  With such a configuration, for example, the process for supporting the driving of the vehicle can be reliably performed except when it can be determined based on the region identification information that there is no fear of a collision.

  Since other configurations and operations are the same as those of the communication system according to the first embodiment, detailed description thereof will not be repeated here.

  Next, another embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

<Sixth Embodiment>
The present embodiment relates to a communication system including a communication device that is not an in-vehicle communication device, as compared with the first to fifth embodiments of the present invention. The contents other than those described below are the same as those of the communication system according to the first to fifth embodiments.

  FIG. 12 is a diagram showing a configuration of a communication system according to the sixth embodiment of the present invention.

  With reference to FIG. 12, the communication system 106 includes a plurality of in-vehicle communication devices 15 and a portable communication device 19.

  The portable communication device 19 is a communication device that can communicate with the in-vehicle communication device 15 mounted on the vehicle. Specifically, the portable communication device 19 is a mobile communication device such as a smartphone or a tablet having a communication function with the in-vehicle communication device 15. For example, the portable communication device 19 performs various processes similar to the in-vehicle communication device 15 of the host vehicle 10 in the first to fifth embodiments of the present invention.

  In this example, the general road 2 includes a sidewalk 3. The portable communication device 19 is carried by a pedestrian 18 located on the sidewalk 3.

  The portable communication device 19 recognizes its own position based on the GPS information, and refers to the map information acquired via the network, thereby determining the type of the region in which it is located. And the portable communication apparatus 19 preserve | saves the information which shows the classification of the area | region where self is located in an own memory | storage part as area | region identification information.

  The in-vehicle communication device 15 of the other vehicle 11 transmits, for example, vehicle information including region identification information indicating the type of region in which the vehicle is located to the mobile communication device 19.

  When the mobile communication device 19 receives the vehicle information from the in-vehicle communication device 15, the mobile communication device 19 collates the region identification information stored in its storage unit with the region identification information included in the vehicle information. And when these two area | region identification information corresponds, the portable communication apparatus 19 performs the safety assistance process A based on the received vehicle information.

  Specifically, for example, when the mobile communication device 19 is positioned on the general road 2 and the two area identification information matches, the mobile communication device 19 collides with the pedestrian 18 and the other vehicle 11 as the safety support processing A. When the possibility of collision is high, the pedestrian 18 is warned.

  On the other hand, when the two area identification information does not match, the mobile communication device 19 discards the vehicle information without performing the safety support process A based on the vehicle information.

  In addition, the portable communication device 19 transmits pedestrian information including GPS information indicating its position and region identification information to the in-vehicle communication device 15 of the other vehicle 11.

  When receiving the pedestrian information from the portable communication device 19, the in-vehicle communication device 15 of the other vehicle 11 performs the same processing as when receiving the vehicle information from the other in-vehicle communication device 15. In other words, when the in-vehicle communication device 15 of the other vehicle 11 receives the pedestrian information from the portable communication device 19, the on-vehicle communication device 15 collates the region identification information stored in its own storage unit with the region identification information included in the pedestrian information. . And when these two area | region identification information corresponds, the vehicle-mounted communication apparatus 15 performs the safety assistance process A based on the received vehicle information.

  Specifically, the in-vehicle communication device 15 calculates the possibility of collision between the pedestrian 18 and the other vehicle 11 in detail as the safety support process A, and when the possibility of collision is high, the driver of the other vehicle 11 Call attention to.

  On the other hand, when the two area identification information does not match, the in-vehicle communication device 15 of the other vehicle 11 discards the vehicle information without performing the safety support process A based on the vehicle information.

  Since other configurations and operations are the same as those of the communication system according to the first to fifth embodiments, detailed description thereof will not be repeated here.

  The above embodiment should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The above description includes the following features.

[Appendix 1]
A communication device mounted on a vehicle or capable of communicating with a communication device mounted on a vehicle,
An information creation unit that creates transmission information including identification information indicating the type of area in which the communication device of the device is located;
A transmission unit that wirelessly transmits the transmission information created by the information creation unit to another communication device;
The transmission information further includes position information of the communication device itself, and is used for safety support processing in the other communication device.

[Appendix 2]
A mobile communicator mounted on a vehicle or capable of communicating with a communicator mounted on the vehicle,
An information creation unit for creating transmission information;
An acquisition unit for acquiring position information of the mobile communication device of the device;
A determination unit that determines a type of an area where the mobile communication device is located based on the position information acquired by the acquisition unit;
When the determination unit determines that its own mobile communication device is located in an area of a specific type, the transmission information is wirelessly transmitted, and the determination unit determines that its own mobile communication device is the specific type A transmission unit that cancels wireless transmission of the transmission information when it is determined that it is not located in the area of
The specific type of region includes a road;
The transmission unit is a mobile communication device that wirelessly transmits the transmission information in accordance with an ARIB standard.

[Appendix 3]
A mobile communicator mounted on a vehicle or capable of communicating with a communicator mounted on the vehicle,
An information creation unit for creating transmission information;
An acquisition unit for acquiring position information of the mobile communication device of the device;
A determination unit that determines a type of an area where the mobile communication device is located based on the position information acquired by the acquisition unit;
When the determination unit determines that the mobile communication device is located in a specific type of area, the transmission information is wirelessly transmitted according to a first communication method, and the determination unit is configured to transmit the mobile communication device. A transmission unit that wirelessly transmits the transmission information according to a second communication method when it is determined that the machine is not located in the area of the specific type,
The specific type of region includes a road;
The first communication method is a communication method according to the ARIB standard,
The second communication method is a mobile communication device that is a communication method in accordance with a wireless LAN communication standard.

[Appendix 4]
A mobile communicator mounted on a vehicle or capable of communicating with a communicator mounted on the vehicle,
A receiving unit for receiving transmission information wirelessly transmitted from another communication device;
A processing unit that changes the processing content of the transmission information according to identification information indicating a type of an area in which the other communication device is located, included in the transmission information received by the reception unit;
The transmission information further includes position information of the other communication device,
The receiving unit is a mobile communication device that receives the transmission information wirelessly transmitted according to the ARIB standard.

DESCRIPTION OF SYMBOLS 1 Parking lot 2 General road 3 Sidewalk 10 Own vehicle 11, 11P, 11R Other vehicles 15 In-vehicle communication device 16 Roadside equipment 17 Base station 18 Pedestrian 19 Portable communication device 21 Acquisition part 22 Judgment part 23 Transmission part 24 Processing part 25 Information preparation Unit 26 storage unit 27 receiving unit 101, 103, 104, 105, 106 communication system 115 in-vehicle communication device

Claims (25)

A communication device installed on the roadside or a mobile communication device,
An information creation unit that creates transmission information including identification information indicating the type of area in which the communication device of the device is located;
A communication device comprising: a transmission unit that wirelessly transmits the transmission information created by the information creation unit.   The communication device according to claim 1, wherein the area includes a road.   The communication device according to claim 2, wherein the area includes a specific road.   The communication device according to claim 3, wherein the area includes a general road.   The communication device according to claim 3, wherein the area includes a highway.   The communication device according to claim 1, wherein the area includes a specific facility.   The communication device according to any one of claims 1 to 6, wherein the communication device is a mobile communication device. The communication device further includes:
An acquisition unit for acquiring the position information of the communication device of itself;
A determination unit that determines a type of the region based on the position information acquired by the acquisition unit;
The communication device according to claim 7, wherein the information creation unit determines the identification information based on a determination result by the determination unit. The communication device further includes:
A receiving unit for receiving distribution information transmitted from roadside equipment,
The communication device according to claim 7 or 8, wherein the information creating unit determines the identification information based on the distribution information received by the receiving unit.   The communication apparatus according to any one of claims 1 to 9, wherein the transmission information is broadcast information.   The communication device according to any one of claims 1 to 10, wherein the transmission information is wirelessly transmitted in accordance with an ARIB standard. An information creation unit for creating transmission information;
An acquisition unit for acquiring position information of the mobile communication device of the device;
A determination unit that determines a type of an area where the mobile communication device is located based on the position information acquired by the acquisition unit;
When the determination unit determines that its own mobile communication device is located in an area of a specific type, the transmission information is wirelessly transmitted, and the determination unit determines that its own mobile communication device is the specific type And a transmission unit that cancels wireless transmission of the transmission information when it is determined that it is not located in the area. An information creation unit for creating transmission information;
An acquisition unit for acquiring position information of the mobile communication device of the device;
A determination unit that determines a type of an area where the mobile communication device is located based on the position information acquired by the acquisition unit;
When the determination unit determines that the mobile communication device is located in a specific type of area, the transmission information is wirelessly transmitted according to a first communication method, and the determination unit is configured to transmit the mobile communication device. A mobile communication device comprising: a transmission unit that wirelessly transmits the transmission information according to a second communication method different from the first communication method when it is determined that the device is not located in the region of the specific type. A receiving unit for receiving transmission information wirelessly transmitted from another communication device;
A mobile communication device comprising: a processing unit that determines a processing content of the transmission information according to identification information indicating a type of an area where the other communication device is located, which is included in the transmission information received by the reception unit. . The mobile communication device further includes:
An acquisition unit for acquiring position information of the mobile communication device of the device;
A determination unit that determines a type of an area in which the mobile communication device is located based on the position information acquired by the acquisition unit;
When the type of the mobile communication device determined by the determination unit matches the type indicated by the identification information, the processing unit uses the transmission information received by the reception unit to perform safety support. The mobile communication device according to claim 14, which performs processing. The mobile communication device further includes:
An acquisition unit for acquiring position information of the mobile communication device of the device;
A determination unit that determines a type of an area in which the mobile communication device is located based on the position information acquired by the acquisition unit;
The processing unit discards the transmission information received by the receiving unit when the type of the mobile communication device determined by the determining unit does not match the type indicated by the identification information. Item 16. The mobile communication device according to item 14 or claim 15.   The processing unit performs safety support processing using the transmission information received by the receiving unit when the identification information is not included in the transmission information or the content of the identification information is unknown. The mobile communication device according to any one of claims 14 to 16. The region includes a road;
The receiving unit receives the transmission information according to a first communication method;
The mobile communication device further includes:
An acquisition unit for acquiring position information of the mobile communication device of the device;
A determination unit that determines a type of an area in which the mobile communication device is located based on the position information acquired by the acquisition unit;
When the type of the mobile communication device determined by the determination unit matches the type indicated by the identification information and the type is other than a specific road, the processing unit The mobile communication device according to any one of claims 14 to 17, wherein the mobile communication device determines to perform communication with the other communication device according to a second communication method different from the communication method.   The mobile communication device according to any one of claims 12 to 18, wherein the area includes a road.   The mobile communication device according to claim 19, wherein the area includes a specific road.   The mobile communication device according to claim 20, wherein the region includes a general road.   The mobile communication device according to claim 20 or claim 21, wherein the area includes a highway.   The mobile communication device according to any one of claims 12 to 22, wherein the area includes a specific facility.   The mobile communication device according to any one of claims 12 to 23, wherein the transmission information is broadcast information.   The mobile communication device according to any one of claims 12 to 24, wherein the transmission information is wirelessly transmitted according to the ARIB standard.

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