JP2009009283A - Traffic support system, onboard unit, portable machine, and base station - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To properly secure safety to an other vehicle and a pedestrian when it is viewed from an own-vehicle, and to properly secure safety to a vehicle and another pedestrian when it is viewed from a pedestrian. <P>SOLUTION: An onboard unit 2 or a portable unit 3 performs the grouping of other onboard units 2 or other portable units 3 whose current locations can be specified from the current location map information received from a base station 4, whose current locations are adjacent to each other, in multi-stages, and forms the groups in hierarchies, and when displaying the current location graphics whose own-current locations can be specified, the onboard unit or the portable unit 3 performs the detail display of only the equipment or group whose hierarchy is a low order as for the equipment or groups existing in the preliminarily set regulation range, and performs the simple display of only the equipment or group whose hierarchy is a high order or performs the non-display of all the hierarchies as for the equipment or groups existing in a range other than a preliminarily set regulation range. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a traffic support system that supports the traffic of a pedestrian carrying a vehicle or a portable device equipped with an on-vehicle device, and an on-vehicle device, a portable device, and a base station used in the traffic support system.

There is provided a driving support system that groups other vehicles running around the host vehicle, determines a group that may affect the running of the host vehicle as dangerous, and notifies the driver of a warning (for example, Patent Literature) 1).
JP 2003-44994 A

  However, in the above-described Patent Document 1, it is possible to notify the driver whether or not another vehicle is dangerous for the host vehicle, but is it dangerous for the host vehicle to be a pedestrian? It is impossible to notify the driver of whether or not, the response to the pedestrian is not sufficient, and a system that can appropriately ensure safety not only for other vehicles but also for pedestrians when viewed from the host vehicle Is desired. Similarly, a system that can appropriately ensure safety for the vehicle and other pedestrians as viewed from the pedestrian is also desired.

  The present invention has been made in view of the above-described circumstances, and the object thereof is to ensure appropriate safety for other vehicles and pedestrians when viewed from the own vehicle. An object of the present invention is to provide a traffic support system, an in-vehicle device, a portable device, and a base station that can appropriately ensure safety for pedestrians.

  According to the traffic support system described in claim 1, the base station has a current position transmitted from the vehicle-mounted device or the portable device when the vehicle-mounted device or the portable device enters the predetermined narrow area wireless communication area formed by itself. Is received, the received current position is mapped onto a map within a predetermined narrow area wireless communication area, and the current position on the map within the predetermined narrow area wireless communication area of the vehicle-mounted device or portable device that transmitted the current position is determined. The identifiable current position map information is created, and the created current position map information is transmitted to the vehicle-mounted device or portable device that has transmitted the current position. Then, when the vehicle-mounted device or portable device that transmitted the current position receives the current position map information transmitted from the base station, the other vehicle-mounted device or other portable device that can identify the current position based on the received current position map information. When the current position is close to each other, the groups are grouped in multiple stages to form a group in a hierarchy, and when the current position figure that can identify its current position is displayed, it exists within the preset restriction range For a device or group, a lower level device or group is displayed, and for a device or group that exists outside the preset regulation range, a higher level device or group is displayed.

  As a result, the vehicle-mounted device mounted on the vehicle displays the other vehicles and pedestrians in detail by displaying the lower-level equipment or group within the restricted range close to the own vehicle, while being far from the own vehicle. Outside the regulation range, other vehicles and pedestrians can be easily displayed by displaying the higher-level equipment or group, so in the range close to the host vehicle, the presence of other vehicles and pedestrians can be notified in detail to the driver It is possible to inform the driver of the presence of other vehicles and pedestrians even in a range far from the own vehicle, but to focus attention on other vehicles and pedestrians around the own vehicle. Thus, it is possible to appropriately ensure safety for other vehicles and pedestrians as viewed from the host vehicle.

  In addition, in portable devices carried by pedestrians, vehicles and other pedestrians are displayed in detail by displaying lower-level devices or groups within the restricted range close to pedestrians, while from pedestrians Since vehicles and other pedestrians are simply displayed by displaying the higher-level equipment or group outside the far-off regulation range, the presence of vehicles and other pedestrians in detail is shown to pedestrians within a range close to the pedestrians. Even if it is in a range far from the pedestrian, it is possible to inform the pedestrian of the presence of the vehicle and other pedestrians, but to the vehicle and other pedestrians around the pedestrian By concentrating attention, it is possible to appropriately ensure safety for the vehicle and other pedestrians as viewed from the pedestrians.

  According to the traffic support system described in claim 2, the vehicle-mounted device or portable device that has transmitted the current position is within a preset restriction range when displaying a current position graphic that can identify its current position. It is configured not to display devices or groups that exist in the facility regardless of whether they are out of the regulation range, such as pedestrians walking on pedestrian bridges or vehicles slowing down in buildings or parking lots, etc. By not displaying pedestrians or vehicles that have no possibility of affecting the host vehicle or pedestrians, it is possible to avoid providing extra information in advance.

  According to the traffic support system described in claim 3, when the vehicle-mounted device or the portable device enters the facility or leaves the facility, the short-range wireless communication device provided at the entrance gate or the exit gate of the facility Since it is configured to have information that can specify whether or not it exists in the facility by performing short-range wireless communication with, it is possible to perform near-field wireless communication whether or not it exists in the facility Can be specified.

  According to the traffic support system described in claim 4, the vehicle-mounted device or portable device that has transmitted the current position is within a preset restriction range when displaying a current position graphic that can identify its current position. Since it is configured not to display the portable device moving with other devices or groups regardless of whether it is out of the regulation range, for example, it is possible not to display the passengers who are in the vehicle.

  According to the vehicle-mounted device described in claim 5, when the current position map information transmitted from the base station is received, the other vehicle-mounted device or other portable device that can identify the current position from the received current position map information. When the current position is close to each other, grouping them in multiple stages to form a group in a hierarchy and displaying the current position figure that can identify the current position of the device. For the group, the lower level device or group is displayed, and for the device or group existing outside the preset regulation range, the higher level device or group is displayed.

  Accordingly, by being used in the traffic support system together with the base station described in claim 7, it is possible to notify the driver of the presence of other vehicles and pedestrians in detail within a range close to the own vehicle. Although it is easy to notify the driver of the presence of other vehicles and pedestrians even in a distant range, it is possible to see from the own vehicle by concentrating attention on other vehicles and pedestrians around the own vehicle. Therefore, safety for other vehicles and pedestrians can be appropriately ensured.

  According to the portable device described in claim 6, when the current position map information transmitted from the base station is received, the other on-vehicle device or other portable device capable of specifying the current position by the received current position map information When the current position is close to each other, grouping them in multiple stages to form a group in a hierarchy and displaying the current position figure that can identify the current position of the device. For the group, the lower level device or group is displayed, and for the device or group existing outside the preset regulation range, the higher level device or group is displayed.

  Thus, by being used in the traffic support system together with the base station described in claim 7, it is possible to notify the pedestrian in detail of the presence of the vehicle and other pedestrians in a range close to the pedestrian. Even if it is far away from the pedestrian, the presence of the vehicle and other pedestrians can be easily notified to the pedestrian, and by walking attention by focusing on the vehicle and other pedestrians around the pedestrian It is possible to appropriately ensure safety for the vehicle and other pedestrians as viewed from the person.

  According to the base station described in claim 7, when the vehicle-mounted device or portable device enters the predetermined narrow area wireless communication area formed by itself and receives the current position transmitted from the vehicle-mounted device or portable device, The current position where the received current position is mapped on the map in the predetermined narrow area wireless communication range, and the current position on the map in the predetermined narrow area wireless communication area of the in-vehicle device or portable device that transmitted the current position can be specified Map information is created, and the created current location map information is sent to the vehicle-mounted device or portable device that sent the current location.

  Accordingly, when used in the traffic support system together with the vehicle-mounted device described in claim 5 or the portable device described in claim 6, the vehicle-mounted device details the presence of other vehicles and pedestrians in a range close to the own vehicle. The driver can be informed of the presence of other vehicles and pedestrians even in a range far from the own vehicle, but the driver can be informed of the presence of other vehicles and walking around the own vehicle. By concentrating the attention on the person, it is possible to appropriately ensure safety for other vehicles and pedestrians as viewed from the host vehicle. In addition, the portable device can notify the pedestrian in detail of the presence of the vehicle and other pedestrians in a range close to the pedestrian, and the presence of the vehicle and other pedestrians even in a range far from the pedestrian. Although it is simple, it can notify pedestrians, and by focusing attention on the vehicles and other pedestrians around the pedestrians, it ensures appropriate safety for the vehicles and other pedestrians as seen from the pedestrians. can do.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 schematically shows the overall configuration of the traffic support system. The traffic support system 1 includes an in-vehicle device 2 mounted on a vehicle, a portable device 3 configured to be portable for pedestrians, and a base station 4 installed on the roadside. The base station 4 forms a predetermined narrow area wireless communication area, and when the in-vehicle device 2 or the portable device 3 enters the narrow area wireless communication area, the in-vehicle device 2 or the portable apparatus that has entered the narrow area wireless communication area. Narrow-area wireless communication with 3 is performed.

  The vehicle-mounted device 2 is installed in a control unit 21 composed of a microcomputer, a narrow-area wireless communication unit 22 that performs narrow-area wireless communication with the base station 4, and a facility (for example, a pedestrian bridge, a parking lot, or a building). A short-range wireless communication unit 23 that performs short-range wireless communication with a range wireless communication device, for example, a current position detection unit 24 that detects (specifies) a current position by calculating a GPS signal transmitted from a GPS satellite, and an occupant The operation receiving unit 25 for receiving the operation, the display unit 26 for displaying display information, the audio output unit 27 for outputting sound, and the like.

  When the radio signal transmitted from the base station 4 is received by the narrow area radio communication unit 22, the control unit 21 transmits the current position detected by the current position detection unit 24 from the narrow area radio communication unit 22 to the base station 4. . Further, when the current location map information transmitted from the base station 4 is received by the narrow area wireless communication unit 22, the control unit 21 processes the received current location map information and causes the display unit 26 to display it. In this case, the vehicle-mounted device 2 may be configured from a vehicle-mounted navigation device in which the above-described functions are incorporated, or may be configured from a single dedicated device.

  The portable device 3 is installed in a control unit 31 composed of a microcomputer, a narrow-area wireless communication unit 32 that performs narrow-area wireless communication with the base station 4, and a facility (for example, a pedestrian bridge, a parking lot, or a building). A short-range wireless communication unit 33 that performs short-range wireless communication with a range wireless communication device, for example, a current position detection unit 34 that detects (identifies) a current position by calculating a GPS signal transmitted from a GPS satellite, walking An operation receiving unit 35 for receiving a user's operation, a display unit 36 for displaying display information, an audio output unit 37 for outputting sound, and the like.

  When the radio signal transmitted from the base station 4 is received by the narrow area wireless communication unit 32, the control unit 31 causes the current position detection unit 34 to transmit the current position detected by the current position detection unit 34 to the base station 4. . Further, when the current location map information transmitted from the base station 4 is received by the narrow area wireless communication unit 32, the control unit 31 processes the received current location map information and causes the display unit 36 to display it. In this case, the portable device 3 may be configured by a mobile phone or a portable information terminal in which the above functions are incorporated.

  The base station 4 includes a control unit 41 formed of a microcomputer, a narrow-area wireless communication unit 42 that performs narrow-area wireless communication with the vehicle-mounted device 2 and the portable device 3, and a map database 43 that stores a map. Has been. The control unit 4 transmits a radio signal from the narrow-band wireless communication unit 42 to form a predetermined narrow-band wireless communication range, and responds to the in-vehicle device 2 or the portable device 3 entering the narrow-band wireless communication range. When the current position transmitted from the vehicle-mounted device 2 or the portable device 3 is received by the narrow area wireless communication unit 42, the received current position is mapped onto a map stored in the map database 43, and current position map information And the created current position map information is transmitted to the vehicle-mounted device 2 or the portable device 3 that has transmitted the current position.

  Next, the operation of the above configuration will be described with reference to FIGS. Here, FIG. 2 shows a process performed by the vehicle-mounted device 2, the portable device 3, and the base station 4 as a flowchart. The vehicle-mounted device 2 or the portable device 3 can register a facility code. The facility code is information indicating that the vehicle-mounted device 2 or the portable device 3 is present in the facility (for example, a pedestrian bridge, a parking lot, or a building), and is a short distance installed at the entrance gate when entering the facility. Register the facility code by performing short-range wireless communication with the wireless communication device, and perform short-range wireless communication with the short-range wireless communication device installed at the exit gate when leaving the facility To unregister the facility code.

The vehicle-mounted device 2 or the portable device 3 periodically detects the current position (step S1), and periodically transmits the detected current position to the base station 4 (step S2).
The base station 4 monitors whether or not the current position is received from the vehicle-mounted device 2 or the portable device 3 (step T1), and responds to the vehicle-mounted device 2 or the portable device 3 entering the narrow area wireless communication range. If the current position is received from the vehicle-mounted device 2 or the portable device 3 (“YES” in step T1), the received current position is mapped on the map (step T2), and the vehicle-mounted device 2 or the portable device that has transmitted the current position. Current position map information capable of specifying the current position on the map of the machine 3 is created (step T3), and the created current position map information is transmitted to the vehicle-mounted device 2 or the portable device 3 (step T4).

  The vehicle-mounted device 2 or the portable device 3 monitors whether or not the current position map information is received from the base station 4 after periodically transmitting the current position to the base station 4 (step S3). When the current position map information is received from 4 (“YES” in step S3), the current position approaches the other vehicle-mounted device 2 or other portable device 3 that can identify the current position based on the received current position map information. (Within a predetermined distance) are grouped in multiple stages to form a group in a hierarchy (step S4).

  Here, the vehicle-mounted device 2 or the portable device 3 sets a restriction range in advance. The restricted range is a range in which the vehicle-mounted device 2 or the portable device 3 can be determined to be dangerous and the danger can be avoided. For example, the movement speed per unit time (vehicle speed in the vehicle-mounted device 2 and walking in the portable device 3) This is a range set based on (speed). When the in-vehicle device 2 or the portable device 3 forms a group in a hierarchy, the lower clients (group and device) outside the restricted range are hidden (step S5), and the client with the facility code outside the restricted range is hidden (step S5). S6) Hide the facility code-attached client within the restricted range (step S7), and hide the upper client having the lower client within the restricted range (step S8). Then, the vehicle-mounted device 2 or the portable device 3 displays a map around the current position on the display unit 26 or the display unit 36 (step S9).

  A specific example will be described below. FIG. 3 shows the distribution status of the vehicle-mounted device 2 (indicated by black stars in FIG. 3) and the portable device 3 (indicated by black circles in FIG. 3). Specifically, the vehicle equipped with the vehicle-mounted device A is traveling on the up road, and the vehicle equipped with the vehicle-mounted device A is a driver carrying the portable device c and a passenger carrying the portable device a. A passenger carrying the portable device b and a passenger carrying the portable device d are on board.

  In addition, a vehicle equipped with the vehicle-mounted device B, a vehicle equipped with the vehicle-mounted device C, a vehicle equipped with the vehicle-mounted device D, and a vehicle equipped with the vehicle-mounted device E are traveling on the descending road. A driver carrying the portable device l is on the vehicle equipped with the vehicle-mounted device B, and a driver carrying the portable device m is on the vehicle equipped with the on-vehicle device C. A driver carrying the portable device n is on the vehicle equipped with the on-vehicle device D, and a driver carrying the portable device p is on the vehicle equipped with the on-vehicle device E.

  In addition, a pedestrian carrying the portable device g, a pedestrian carrying the portable device h, and a pedestrian carrying the portable device j are walking on the sidewalk on the descending roadway side. A vehicle equipped with the vehicle-mounted device F is traveling in the parking lot, and a driver carrying the portable device f is on the vehicle equipped with the vehicle-mounted device F. Further, a pedestrian carrying the portable device k is walking on the pedestrian bridge, and a pedestrian carrying the portable device e is walking in the building.

  In this case, the process performed by the vehicle-mounted device A will be described. The vehicle-mounted device A forms a group hierarchy by grouping the above-described vehicle-mounted device 2 and the portable device 3 in a multistage manner. Specifically, as shown in FIG. 4A, the vehicle-mounted device A includes itself, the portable device a, the portable device c, the portable device b, and the portable device d as a group 001, and the vehicle-mounted device B and the portable device l. Is group 003, on-vehicle device C and portable device m are group 004, on-vehicle device D and portable device n are group 007, on-vehicle device E and portable device p are group 006, and portable device g is portable. Machine h and portable device j are group 009, and vehicle-mounted device F and portable device f are group 010. Further, the vehicle-mounted device A sets the group 003 and the group 004 as the group 005, and sets the group 007 and the group 004 as the group 008. Furthermore, the vehicle-mounted device A sets the group 001, the group 005, and the portable device k as the group 101.

  Next, the vehicle-mounted device A hides the lower level clients outside the regulation range. Specifically, when the in-vehicle device A sets the group 101 within the restricted range and sets other than the group 101 outside the restricted range, as shown in FIG. 4B, the in-vehicle device A is a subordinate client of the group 008 outside the restricted range. The group 006 and the group 007 are hidden, and the portable device g, the portable device h, and the portable device j, which are lower clients of the group 009 outside the restriction range, are hidden. Next, the vehicle-mounted device A hides the client with the facility code outside the regulation range. Specifically, as shown in FIG. 4C, the vehicle-mounted device A hides the group 010 and the portable device e that are clients with facility codes that are out of the regulation range.

  Next, the vehicle-mounted device A hides the client with the facility code within the restricted range. Specifically, as shown in FIG. 5A, the vehicle-mounted device A hides the portable device k that is a client with a facility code within the restricted range. And the onboard equipment A hides the upper client which has a lower client within a control range. Specifically, as shown in FIG. 5B, the vehicle-mounted device A hides the group 005 and the group 101 that are upper clients having lower clients within the restricted range. In this case, the vehicle-mounted device A hides the portable device a, the portable device b, the portable device c, and the portable device d that move together with itself, and hides the portable device l that moves together with the vehicle-mounted device B. The portable device m that moves together with the device C is hidden.

  The in-vehicle device A thus hides the clients that meet various conditions from the first group hierarchy. FIG. 6 shows a client that is hidden by the distribution status of the vehicle-mounted device 2 and the portable device 3. Then, the vehicle-mounted device A displays a map around the current position on the display unit 26. That is, if the in-vehicle device A does not hide the client that meets various conditions from the first group hierarchy, the portable device a, the portable device b, and the portable device that move together with the on-vehicle device A as shown in FIG. The mobile device c and the mobile device d, the mobile device 1 that moves with the vehicle-mounted device B, the mobile device m that moves with the vehicle-mounted device C, the vehicle-mounted device F and the mobile device f of the vehicle running in the parking lot, and the pedestrian bridge. Although the mobile device k of the pedestrian is also displayed, in the present embodiment, by displaying the clients that meet the various conditions from the first group hierarchy, it is possible to display the clients that meet the various conditions. Instead, only the current position figure of the vehicle-mounted device A, the vehicle-mounted device B, and the vehicle-mounted device C are finally displayed. That is, the vehicle-mounted device A displays the other vehicle and the pedestrian in detail within the restricted range close to the own vehicle, and easily displays the other vehicle and the pedestrian outside the restricted range far from the own vehicle.

  By the way, although the above demonstrated the process which the onboard equipment A mounted in the vehicle demonstrated, the process which the portable device 3 currently carried by the pedestrian is also the same. In this case, the portable device 3 displays the vehicle in detail within the restriction range close to the own vehicle by grouping the vehicles and hiding clients that meet various conditions, while the restriction range far from the own vehicle. The vehicle is simply displayed outside. In addition, the portable device 3 may display not only the vehicle but also other pedestrians, and by grouping the vehicle and other portable devices and hiding clients that meet various conditions, The vehicle and other portable devices may be displayed in detail within the close restriction range, while the vehicle and other portable devices may be simply displayed outside the restriction range far from the host vehicle.

  In addition, as shown in FIG. 8, for example, the restricted range is set by dividing it into three stages of a short distance range, a medium distance range, and a long distance range, and vehicles and portable devices are displayed in detail within the short distance range. However, lower-level vehicles and portable devices are displayed within the middle distance range, higher-level vehicles and portable devices are displayed within the long-distance range, and vehicles and portable devices are not displayed outside the long-distance range. May be.

  As described above, according to the present embodiment, in the vehicle-mounted device 2 or the portable device 3, the other vehicle-mounted device 2 or the other portable device 3 that can identify the current position from the current position map information received from the base station 4. When the current position is close to each other, grouping them in multiple stages to form a group in a hierarchy, and displaying the current position figure that can identify its current position, the equipment that is within the preset restriction range Alternatively, for a group, a lower level device or group is displayed, and for an existing device or group that is outside the preset regulation range, a higher level device or group is displayed.

  As a result, the vehicle-mounted device 2 can notify the driver of the presence of other vehicles and pedestrians in a range close to the host vehicle, and can detect the presence of other vehicles and pedestrians even in a range far from the host vehicle. Although it is simple, it is possible to notify the driver, and by focusing attention on other vehicles and pedestrians around the own vehicle, the safety to other vehicles and pedestrians can be appropriately secured as seen from the own vehicle. Can do. Moreover, in the portable device 3, in the range close to the pedestrian, the presence of the vehicle and other pedestrians can be notified in detail to the pedestrian, and even in the range far from the pedestrian, the presence of the vehicle and other pedestrians It is possible to notify pedestrians in a simple manner, but by focusing attention on the vehicles and other pedestrians around the pedestrians, it is possible to appropriately ensure safety for the vehicles and other pedestrians as seen from the pedestrians. Can be secured.

  In addition, when the current position graphic that can identify the current position of the vehicle-mounted device 2 or the portable device 3 is displayed, it is present in the facility regardless of whether the current position figure is within a preset restriction range or outside the restriction range. For example, pedestrians walking on pedestrian bridges or vehicles traveling slowly in buildings or parking lots may affect their own vehicles and pedestrians. By not displaying no pedestrians or vehicles, it is possible to avoid providing extra information in advance.

  In the vehicle-mounted device 2 or the portable device 3, when displaying a current position graphic that can identify the current position of the device, it is not limited to other devices or Since the portable device 3 moving with the group is configured not to be displayed, it is possible to prevent the occupants who are in the vehicle from being displayed.

The present invention is not limited to the above-described embodiment, and can be modified or expanded as follows.
In the vehicle-mounted device 2 or the portable device 3, the period for detecting and transmitting the current position may be set according to the moving speed. The period is shortened when the moving speed is fast, and the period is lengthened when the moving speed is slow. You may make it do.

  When displaying the current position of the vehicle-mounted device, the portable device carried by the driver of the vehicle equipped with the vehicle-mounted device or the passenger's portable device may not be displayed. In that case, the type of vehicle equipped with the vehicle-mounted device (large passenger car, large freight car, ordinary passenger car, etc.) is discriminated and is a passenger's portable device or a portable device of a pedestrian walking around the vehicle You may make it discriminate | determine. That is, as shown in FIG. 9, in the case of a large passenger car, the vehicle length is longer than that of a normal passenger car, so it is determined that the portable device a, the portable device b, and the portable device d are passenger portable devices, On the other hand, since the vehicle length of a normal passenger car is shorter than that of a large passenger car, it is determined that the portable device a, the portable device b, and the portable device d are not a passenger's portable device but a portable device of a surrounding pedestrian. You may make it do.

  A group may be formed in a hierarchy by discriminating the traveling direction of vehicles and pedestrians. That is, a group may be formed in a fine unit in the traveling direction of the vehicle or pedestrian, and a group may be formed in a rough unit in the direction opposite to the traveling direction of the vehicle or pedestrian.

The figure which shows one Embodiment of this invention and shows the whole structure of a traffic assistance system flowchart The figure which shows an example of the distribution situation of onboard equipment and portable equipment Diagram showing an example of the hide procedure 4 equivalent diagram The figure which shows an example hidden by the distribution situation of onboard equipment and portable equipment Figure showing an example of the display screen The figure which shows an example which divided and set the regulation range into the range of three steps The figure which shows the relationship between vehicle classification and on-board equipment and portable equipment

Explanation of symbols

  In the drawings, 1 is a traffic support system, 2 is a vehicle-mounted device, 3 is a portable device, and 4 is a base station.

Claims (7)

An in-vehicle device configured to be mounted on a vehicle and capable of periodically transmitting the current position to a base station;
A portable device configured to be portable to pedestrians and capable of periodically transmitting the current position to the base station;
A traffic support system comprising a base station that receives a current position from the on-vehicle device or the portable device existing within a predetermined narrow-area wireless communication area formed by the device;
The base station maps the current position received from the in-vehicle device or the portable device onto a map in a predetermined narrow-area wireless communication area, and transmits the current position to the predetermined narrow-band wireless device of the in-vehicle device or the portable device. Create current position map information that can identify the current position on the map in the communication range, send the created current position map information to the onboard device or the portable device that has transmitted the current position,
The on-vehicle device or the portable device that has transmitted the current position is a state in which the current position is approaching for other on-vehicle devices or other portable devices that can identify the current position based on the current position map information received from the base station. Grouping in multiple stages to form a group in a hierarchy, and when displaying a current position figure that can identify its current position, for devices or groups that exist within a preset restriction range, A traffic support system that displays a group and displays a higher-level device or group for a device or group that is outside the preset regulation range. In the traffic support system according to claim 1,
The on-vehicle device or the portable device is configured to have information that can specify whether or not the device exists in a facility,
The vehicle-mounted device or the portable device that has transmitted the current position is a facility regardless of whether it is within a preset restriction range or outside the restriction range when displaying a current position graphic that can identify its current position. A traffic support system that does not display other devices or groups existing in the system. In the traffic support system according to claim 2,
The in-vehicle device or the portable device performs short-range wireless communication with a short-range wireless communication device provided at the entrance gate or the exit gate of the facility when entering or leaving the facility. Thus, it has information that can specify whether or not it exists in the facility. In the traffic support system according to claim 1,
The vehicle-mounted device or the portable device that has transmitted the current position is not limited to whether it is within a preset restriction range or outside the restriction range when displaying a current position figure that can identify its current position. A mobile support system that does not display mobile devices that move with other devices or groups. It is configured to be mounted on a vehicle, and the current position can be periodically transmitted to the base station, and the current position received from the vehicle-mounted device or portable device is mapped onto a map within a predetermined narrow area wireless communication range To the in-vehicle device or the portable device that has created the current position map information that can identify the current position on the map within the predetermined narrow area wireless communication range of the on-vehicle device or the portable device that has transmitted the current position A vehicle-mounted device used in a traffic support system together with a base station configured to transmit the created current position map information,
Forms a group in a hierarchy by grouping the current positions of other in-vehicle devices or other portable devices that can identify the current position from the current position map information received from the base station in multiple stages, When displaying a current position figure that can identify the current position of a device or group that is within a preset restriction range, the lower level device or group is displayed and the device or group is outside the preset restriction range An on-vehicle device that displays a higher-level device or group for a device or group to be operated. It is configured to be portable for pedestrians, and the current position can be periodically transmitted to the base station, and the current position received from the vehicle-mounted device or portable device is mapped onto a map within a predetermined narrow area wireless communication range The vehicle-mounted device or the portable device that has created the current position map information that can identify the current position on the map within the predetermined narrow area wireless communication range of the vehicle-mounted device or the portable device that has transmitted the position, and has transmitted the current position A portable device used in a traffic support system together with a base station configured to transmit the created current location map information to
Forms a group in a hierarchy by grouping the current positions of other in-vehicle devices or other portable devices that can identify the current position from the current position map information received from the base station in multiple stages, When displaying a current position figure that can identify the current position of a device or group that is within a preset restriction range, the lower level device or group is displayed and the device or group is outside the preset restriction range A portable device characterized by displaying a higher-level device or group for the device or group to be operated. For other in-vehicle devices or other portable devices that can identify the current location based on the current location map information received from the base station, groups that are close to the current location are grouped in multiple stages to form a group in a hierarchy. For devices or groups that exist within the preset restriction range when displaying the current position graphic that can identify the current position, devices or groups that are lower in the hierarchy and that are outside the preset restriction range A group is a base station used in a traffic support system together with a vehicle-mounted device or a portable device configured to display a higher-level device or group,
The current position received from the vehicle-mounted device or the portable device is mapped onto a map within a predetermined narrow area wireless communication range, and the current position is transmitted onto the map within the predetermined narrow area wireless communication range of the vehicle-mounted device or the portable device. A base station that creates current position map information capable of specifying a current position in the mobile station and transmits the created current position map information to the vehicle-mounted device or the portable device that has transmitted the current position.

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