Inter-terminal information acquisition system

Abstract

To provide an inter-terminal information acquisition system that enables simple and easy acquisition of highly accurate position information of one's own mobile vehicle and inter-terminal information between other mobile vehicles in close proximity.SOLUTION: An inter-terminal information acquisition system includes: a mobile terminal mounted on a plurality of mobile vehicles; location information acquisition means; a fixed base station; an information processing server configured to communicate with the mobile terminals via a network; correction information acquisition means for acquiring correction information for correcting errors in the location information; correction means for correcting errors in the location information based on the correction information; and mobile terminal management means for managing the location information of the mobile terminal capable of communicating with the information processing server. The mobile terminal has proximity terminal information acquisition means for acquiring proximity terminal information including the location information on the other mobile terminals within a predetermined range, and inter-terminal information acquisition means for acquiring inter-terminal information with other mobile terminals within the predetermined range using the proximity terminal information.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an inter-terminal information acquisition system for acquiring inter-terminal information between nearby mobile terminals. [Background technology]

[0002] A location information acquisition system described in Patent Document 1 is known in the art, and includes a mobile vehicle equipped with a communication terminal, a location information acquisition means for acquiring location information of the mobile vehicle from a positioning satellite, a fixed base station configured to be able to communicate with the communication terminal within a predetermined range, a correction information acquisition means for acquiring correction information for correcting errors in the location information acquired by the location information acquisition means, and a correction means for correcting errors in the location information based on the correction information.The location information acquisition system is capable of acquiring more accurate location information of the mobile vehicle by correcting errors in the location information acquired by GPS.

[0003] According to the above Patent Document 1, the accuracy of the position information of the moving vehicle obtained from a positioning satellite usually has an error of several meters, but this technology can obtain position information in centimeters.However, while it is possible to obtain its own position information, it is not possible to obtain the position information of other moving vehicles in the vicinity, which creates the problem that it may be difficult to utilize the obtained high-precision position information for driving control, etc.

[0004] Furthermore, a system described in Patent Document 2 is known that is configured to be able to assist steering operations based on position information of the moving vehicle acquired from positioning satellites.

[0005] According to Patent Document 2, the convenience is improved because the work vehicle can be automatically driven along a predetermined route within the field based on highly accurate position information. However, since the relationship between the work vehicle and other moving vehicles is unknown, there is a problem that the system cannot be used to assist steering of the moving vehicle when it is traveling on roads in town. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 3428580 [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-245003 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention aims to provide an inter-terminal information acquisition system that can simply and easily acquire highly accurate location information of the mobile body on which the user is riding and inter-terminal information regarding the relationship between the mobile body and other nearby mobile bodies. [Means for solving the problem]

[0008] In order to solve the above problem, the present invention provides a method and system for communicating with the mobile terminals, the method comprising: a plurality of mobile bodies each equipped with a mobile terminal; a fixed base station configured to be able to communicate with the mobile terminals within a predetermined range; and an information processing server configured to be able to communicate with the mobile terminals via a network, wherein the mobile bodies are moving vehicles, the fixed base stations are installed on utility poles provided successively along a route along which the mobile bodies move, the information processing server has terminal position management means for managing position information of the mobile terminals capable of communicating with the information processing server, and the mobile terminals each have position information acquisition means for acquiring position information of the mobile body from a positioning satellite, correction information acquisition means for acquiring correction information from the fixed base station for correcting an error in the position information acquired by the position information acquisition means, correction means for correcting an error in the position information based on the correction information, nearby terminal information acquisition means for acquiring nearby terminal information including position information relating to other mobile terminals within the predetermined range from the information processing server, and a method and system for communicating with other mobile terminals within the predetermined range using the nearby terminal information. Information including vehicle distance and an inter-terminal information acquisition means for acquiring inter-terminal information. The correction information includes distance information from the mobile terminal to the fixed base station and location information of the fixed base station. It is characterized by:

[0009] The vehicle may be provided with a driving assistance means for assisting driving based on the terminal-to-terminal information. .

[0010] The mobile terminal may be configured to be able to acquire vehicle body information including vehicle width and vehicle length of other moving vehicles within a predetermined range as the nearby terminal information.. [Effects of the Invention]

[0011] Himself According to the present invention, inter-vehicle information including inter-vehicle information between the moving vehicle in which the driver is riding and another nearby moving vehicle can be obtained with high accuracy and ease.

[0012] Since inter-vehicle information such as the distance between moving vehicles can be obtained with high accuracy, driving assistance that prevents a moving vehicle from coming into contact with an adjacent moving vehicle can be performed with higher accuracy. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a conceptual diagram showing the configuration of an inter-vehicle information acquisition system to which the present invention is applied. [Figure 2] FIG. 1 is a block diagram showing the configuration of a moving vehicle. [Figure 3] FIG. 2 is a block diagram showing the configuration of an in-vehicle terminal. [Figure 4] FIG. 2 is a block diagram showing a configuration of an information processing server. [Figure 5] FIG. 2 is a block diagram showing the configuration of a fixed base station. [Figure 6] FIG. 2 is a flowchart showing an example of a processing flow of the inter-vehicle information acquisition system. [Figure 7] FIG. 10 is a conceptual diagram showing the configuration of an inter-vehicle information acquisition system according to another embodiment. [Figure 8] FIG. 10 is a block diagram showing the configuration of a fixed base station according to another embodiment. [Figure 9] FIG. 10 is a block diagram showing the configuration of an in-vehicle terminal according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0014] An embodiment of the inter-vehicle information acquisition system according to the present invention will be described with reference to the illustrated example. Fig. 1 is a conceptual diagram showing the configuration of the inter-vehicle information acquisition system to which the present invention is applied.

[0015] The vehicle-to-vehicle information acquisition system (terminal-to-terminal information acquisition system) of the present invention comprises at least two or more moving vehicles (moving bodies) 1, 1... each equipped with an on-board terminal (mobile terminal) 10 that can connect to a positioning satellite, a fixed base station 20 that transmits correction information to correct the location information to the on-board terminal 10, and an information processing server 30 that can communicate with the on-board terminal 10.

[0016] The network 5 that enables communication between the information processing server 30 and the in-vehicle terminal 10 is specifically a global network 5 such as the Internet.

[0017] 2 is a block diagram showing the configuration of a mobile vehicle. The mobile vehicle 1 includes an on-board terminal 10 (described in detail below) mounted on the mobile vehicle 1, an RTK-GNSS unit (position information acquisition device, GNSS unit, GPS receiver) 2 that acquires position information from positioning satellites, on-board sensors 3 that are various sensors mounted on the mobile vehicle 1, an on-board camera 4 that captures images of the area around the mobile vehicle 1, a navigation device 6 that provides guidance on routes to a destination and guidance around the mobile vehicle, an alarm device (alert means) 7 such as a buzzer that alerts the driver (operator) of various information, a driving assistance device (driving assistance means) 8 that assists steering operation based on information acquired from an information processing server 30, a touch panel 9A that is a type of input means, and a liquid crystal panel B that is a type of output means.

[0018] The vehicle-mounted terminal 10 is configured to be able to communicate with the information processing server 30 via a global network such as the Internet. The vehicle-mounted terminal 10 is also configured to be able to wirelessly communicate with vehicle-mounted terminals 10 mounted on other moving vehicles within a predetermined range using short-range wireless communication (see FIGS. 1 to 3, etc.). The vehicle-mounted terminal 10 may be mounted on other moving objects such as a bicycle, in addition to the moving vehicle 1.

[0019] In addition, the on-board terminal 10 is configured to be able to acquire identification information that identifies other moving vehicles 1 (mounted on the on-board terminals 10) within a specified range, and is configured to be able to acquire, based on the identification information, vehicle body information regarding the bodies of other moving vehicles (specifically, catalog specifications such as the vehicle model, overall length, width, height, etc.) as well as nearby vehicle information (nearby terminal information) consisting of various information such as location information detected by on-board sensors 3 mounted on other moving vehicles.

[0020] As a result, when the on-board terminal 10 detects that there is a moving vehicle 1 equipped with the same type of on-board terminal 10 within a specified range, it is configured to obtain the above-mentioned nearby vehicle information and vehicle body information regarding other moving vehicles 1 within the specified range from the information processing server 30, and by combining this with its own position information, vehicle body information, etc., it can calculate (obtain) vehicle-to-vehicle information (terminal-to-terminal information) between its own moving vehicle and adjacent moving vehicles.

[0021] The GNSS unit 2 has a receiver that acquires position information from positioning satellites and a receiver (digital wireless receiver) that receives correction information from the fixed base station 20, and is configured to acquire highly accurate position information with an error of several centimeters by correcting the position information acquired from the positioning satellites, which has an error of several meters, using the correction information acquired from the fixed base station 20. At this time, the correction information acquired from the fixed base station 20 includes information on the distance from the vehicle-mounted terminal 10 to the fixed base station 20 and position information (coordinate information) of the fixed base station 20.

[0022] The on-board sensors 3 are various sensors mounted on the moving vehicle 1, and include a vehicle speed sensor that detects the speed of the moving vehicle 1, an acceleration sensor, a steering sensor that detects the amount of steering operation when steering is performed, and a distance sensor (obstacle sensor) that detects the distance to an obstacle around the moving vehicle 1.

[0023] The navigation device 6 is configured to allow input and output operations using the touch panel 9A and the liquid crystal panel 9B, and can provide highly accurate route guidance (navigation) by using the position information of the moving vehicle 1 acquired (calculated) by the in-vehicle terminal 10.

[0024] The driving assistance device 8 and the notification device 7 are configured to be able to assist the operator in driving operations based on the inter-vehicle information between the vehicle itself and a nearby (adjacent) moving vehicle.

[0025] Specifically, when the in-vehicle terminal 10 detects that the distance between the operator and another moving vehicle approaching the operator is closer than a predetermined distance, the in-vehicle terminal 10 can notify the operator of this using a warning sound or voice from the alarm device 7.

[0026] Furthermore, the in-vehicle terminal 10 is configured to automatically slow down the speed of the moving vehicle (by applying the brakes, etc.) using the driving assistance device 8 when it is detected that the distance between the vehicle and another moving vehicle approaching the operator is closer than a predetermined distance. Furthermore, the in-vehicle terminal 10 may be configured to, when it detects a moving vehicle 1 traveling ahead, use the driving assistance device 8 to assist in steering so as to follow the moving vehicle 1 ahead.

[0027] 3 is a block diagram showing the main configuration of the in-vehicle terminal 10. The in-vehicle terminal 10 includes a control unit 11 including a CPU, RAM, etc., and implementing various functions by executing programs, a storage device 12 including an SSD, HDD, etc., for storing various information, and a communication interface (communication means) 13 that enables wireless or wired communication via a network.

[0028] The control unit 11 is provided with a location information acquisition unit 11a that acquires current location information from positioning satellites using the GNSS unit 2, a correction information acquisition unit 11b that acquires correction information from the fixed base station 20, an error correction unit 11c that corrects errors in the location information using the correction information, a vehicle information transmission unit 11d that transmits vehicle information including high-precision location information of the moving vehicle with the errors corrected to the information processing server 30, a nearby vehicle information acquisition unit (nearby terminal information acquisition means) 11e that acquires nearby vehicle information regarding other nearby moving vehicles from the information processing server 30, a vehicle-to-vehicle information acquisition unit (terminal-to-terminal information acquisition means) 11f that acquires vehicle-to-vehicle information including the vehicle distance between moving vehicles based on the vehicle information and nearby vehicle information, and a driving assistance unit 11g that uses the driving assistance device 8 to assist the operator in driving operations.

[0029] The storage device 12 has storage areas including a vehicle information storage unit 12a that stores various information related to the moving vehicle on which at least the on-board terminal 10 is mounted, and a vehicle-to-vehicle information storage unit 12b that stores nearby vehicle information acquired from the information processing server 30 and vehicle-to-vehicle information calculated based on the vehicle's own information.

[0030] Specifically, the vehicle information storage unit 12a contains highly accurate position information of the moving vehicle 1 (on-board terminal 10) detected by the GNSS unit 2, as well as information on the route traveled by the moving vehicle 1, information on the vehicle speed, acceleration, steering operation amount, etc. detected by the on-board sensor 3, vehicle body information consisting of the vehicle model, length, width, etc. of the registered moving vehicle 1, and image and video data captured by the on-board camera 4.

[0031] The vehicle-to-vehicle information storage unit 12b stores vehicle-to-vehicle information including relative speeds and other vehicle-to-vehicle information between nearby (adjacent) moving vehicles 1 calculated based on the vehicle information regarding the moving vehicle 1 equipped with the on-board terminal 10 and nearby vehicle information obtained from the information processing server 30.

[0032] As described above, the vehicle-to-vehicle information acquisition unit 11f is configured to calculate highly accurate vehicle-to-vehicle information from information regarding the positions, direction of travel, distance between the vehicles, relative speed, driving route, vehicle size, inner wheel difference, etc. of both vehicles based on vehicle information regarding its own moving vehicle and nearby vehicle information regarding nearby moving vehicles acquired from the information processing server 30 using the nearby vehicle information acquisition unit 11e, and to use the driving assistance unit 11g to provide notifications to the operator based on the acquired vehicle-to-vehicle information and to perform automatic control of steering operations and braking operations.

[0033] For example, when the distance between the vehicle and a moving vehicle ahead becomes closer than a predetermined distance, the driving assistance unit 11g can notify the operator of this fact using an alarm device such as an alarm buzzer and automatically apply the brakes to maintain a safe distance. Similarly, the driving assistance unit 11g is configured to automatically control the steering operation to follow the moving vehicle ahead based on the vehicle-to-vehicle information.

[0034] 4 is a block diagram showing the configuration of the information processing server 30. The information processing server 30 includes a control unit 31 including a CPU, RAM, etc. and implementing various functions by executing programs, a storage device 32 consisting of an SSD, HDD, etc. and storing various information, a communication interface (communication means) 33 enabling wireless or wired communication via a network, an input means 34 consisting of a mouse, keyboard, touch panel, etc., and an output means 36 consisting of a display, speaker, etc. and outputting various information.

[0035] The control unit 31 is provided with a vehicle information receiving unit 31a that receives vehicle information of moving vehicles transmitted from the on-board terminal, a vehicle information management unit 31b that updates and manages the vehicle information of multiple moving vehicles received by the vehicle information receiving unit 31a in real time, and a nearby vehicle information transmitting unit 31c that, when there are moving vehicles that are within a predetermined distance of each other among the managed moving vehicles, transmits nearby vehicle information indicating this to each on-board terminal.

[0036] The storage device 32 has two storage areas: a user information storage unit 32a in which various information about a user (operator) who owns a mobile vehicle equipped with an on-board terminal is stored, and a vehicle information storage unit 32b in which vehicle information consisting of location information and the like transmitted from the mobile vehicle (on-board terminal) is stored.

[0037] The user information storage unit 32a stores user IDs for identifying users and vehicle body information about the vehicles owned by registered users as user information about users who own the vehicles 1 equipped with the above-mentioned on-board terminal 10. The vehicle body information includes information such as the vehicle type, vehicle width, vehicle length, and wheel difference between inner and outer wheels.

[0038] The vehicle information storage unit 32b sequentially records vehicle information including highly accurate position information transmitted from a moving vehicle with an error in centimeters, and the vehicle information includes, in addition to position information, information such as vehicle speed, acceleration, and steering operation amount detected by on-board sensors.

[0039] 5 is a block diagram showing the configuration of a fixed base station. Fixed base station 20 includes a control unit 21 that includes a CPU, RAM, etc. and implements various functions by executing programs, a storage device 22 that is configured from an SSD, HDD, etc. and stores various information, and a communication interface (communication means) 23 that enables wireless communication.

[0040] The control unit 21 is provided with a coordinate data transmission unit (transmission unit) 21a that transmits coordinate data of the location of a utility pole or the like on which the communication terminal is installed to a moving vehicle (vehicle terminal) within the range.

[0041] The storage device 22 is provided with a coordinate data storage unit (correction information storage unit) 22a as a storage area for storing coordinate data (correction information) of the installation location of a fixed base station that transmits to a mobile vehicle.

[0042] As shown in Fig. 1, the fixed base station 20 is a communication terminal installed especially on the top of a utility pole, and is equipped with a transmitter that transmits wireless information to a mobile vehicle (mounted on a vehicle terminal) traveling within a predetermined range from the utility pole on which it is installed. As a result, the fixed base station is configured to be able to transmit correction information for correcting errors in location information, in other words, coordinate information (coordinate data) of the fixed base station (the utility pole on which it is installed) and distance information (distance data) between the fixed base station and the mobile vehicle, to the mobile vehicle (mounted on a vehicle terminal) traveling within the predetermined range. There are .

[0043] By the way, fixed base stations and vehicle-mounted terminals are configured to be connected using 5G and 6G (fifth and sixth generation mobile communication systems), which use high frequency bands to enable high speed, large capacity, low latency, and multiple simultaneous connections.

[0044] In contrast, the fixed base station may be configured to be installed on a fixed object in a city, specifically, a utility pole (fixed pole), as well as a pole-shaped member such as a public telephone booth or a sign. In this case, when the communication terminal constituting the fixed base station is installed on something whose location information is not measured in advance, such as a utility pole, it may be configured to be able to acquire the coordinates of the fixed base station later by providing a location information acquisition device that acquires location information from a positioning satellite.

[0045] According to this configuration, by configuring the vehicle to be able to communicate using 5G and 6G systems, even when a mobile vehicle equipped with an on-board terminal is traveling in places where it is relatively difficult to obtain accurate location information using a GNSS unit, specifically in places surrounded by tall buildings such as skyscrapers, or in city streets such as narrow alleys without traffic lights, the fixed base station is attached to fixed objects such as utility poles in the city, making it easier to receive correction information from the fixed base station.This makes it easier to obtain highly accurate location information when the mobile vehicle is traveling in city streets (such as areas with high-rise buildings or narrow alleys) where it is necessary to obtain more accurate location information.

[0046] The range over which the correction information is transmitted by the fixed base station 20 is within a range of several tens of meters to several kilometers, but it may be wider than this.

[0047] 6 is a flow diagram showing an example of the processing flow of the inter-vehicle information acquisition system, but the processing flow is not limited to these descriptions.

[0048] When the processing flow of the inter-vehicle information acquisition system starts, the process proceeds to step S1. In step S1, the position information acquisition unit 11a acquires position information of the moving vehicle 1 (in-vehicle terminal 10) from positioning satellites using the GNSS unit 2, and then the process proceeds to step S2.

[0049] In step S2, the correction information acquisition unit 11b acquires correction information consisting of coordinate information of the fixed base station 20 and distance information to the fixed base station 20 from the fixed base station 20 that can communicate with the mobile vehicle 1, and then proceeds to step S3.

[0050] In step S3, the error correction unit 11c uses the correction information obtained from the fixed base station 20 to correct errors in the position information of the moving vehicle obtained from the positioning satellite, calculates high-precision position information with errors in centimeters, and then proceeds to step S4.

[0051] In step S4, the vehicle information transmitting unit 11d transmits the vehicle information including the position information of the moving vehicle to the information processing server 30, updates the vehicle information managed on the information processing server 30, and the process proceeds to step S5.

[0052] In step S5, if the nearby vehicle information acquisition unit 11e detects that there is a moving vehicle 1 equipped with a vehicle terminal 10 within a specified range, it acquires nearby vehicle information, which is vehicle information regarding the detected moving vehicle 1, from the information processing server 30, and proceeds to step S6.

[0053] In this case, whether or not there is another moving vehicle 1 within a specified range of the moving vehicle 1 may be detected by configuring the on-board terminals 10, 10 mounted on each other so that they can be directly wirelessly connected to each other, or by analyzing the location information of multiple moving vehicles 1, 1, etc. managed on the information processing server 30 and detecting that a moving vehicle 1 is in a nearby location.

[0054] In step S6, the vehicle-to-vehicle information acquisition unit 11f calculates (acquires) vehicle-to-vehicle information between moving vehicles based on nearby vehicle information about other moving vehicles within a specified range and vehicle information about the moving vehicle itself, and then proceeds to step S7.

[0055] In step S7, the driving assistance unit 11g notifies the operator, assists with steering operation, and assists with braking operation based on the acquired inter-vehicle information, and then returns.

[0056] Next, another embodiment of the inter-vehicle information acquisition system will be described with reference to Figures 7 to 9. Figure 7 is a conceptual diagram showing the configuration of the inter-vehicle information acquisition system of the other embodiment.

[0057] 7, the fixed base station 20 may be configured to be connectable to an information processing server 30 via a global network such as the Internet, and configured to transmit correction information as well as surrounding information (advertising information) such as surrounding shops, tourist spots, and events to a mobile vehicle 1 (mounted on an in-vehicle terminal 10) traveling within a predetermined range. This will be explained in detail below.

[0058] 8 is a block diagram showing the configuration of a fixed base station according to another embodiment. Fixed base station 20 includes control unit 21, which includes a CPU, RAM, etc. and implements various functions by executing programs, storage device 22, which is configured from an SSD, HDD, etc. and stores various types of information, network interface (communication means) 23, which enables wireless or wired communication via a network, input means 24, which is configured from a mouse, keyboard, touch panel, etc., and output means 26, which is configured from a display, speaker, etc. and outputs various types of information.

[0059] The control unit 22 is provided with a coordinate data transmission unit (transmission unit) 21a, a surrounding information transmission unit 21b that transmits advertising information around the installation location along with coordinate data to the moving vehicle, and a surrounding information update unit 21c that updates (changes) the content of the surrounding information to be transmitted to the moving vehicle.

[0060] The peripheral information update unit 21c is configured to be able to change the content of the peripheral information transmitted from the fixed base station 20, and is configured to be able to update input information from the information processing server 30 connected via the network. Note that the peripheral information may be configured to be directly input using an input means 24 or the like connected to the fixed base station 20.

[0061] The storage device 22 has a coordinate data storage unit (correction information storage unit) 22a that stores coordinate data (correction information) of the installation location of the fixed base station 20 that transmits to the mobile vehicle, and a surrounding information storage unit 22b that stores editable surrounding information as storage areas.

[0062] 9 is a block diagram showing the configuration of an in-vehicle terminal according to another embodiment of the present invention. The in-vehicle terminal 10 includes a control unit 11, a storage device 12, and a network interface (communication means) 13.

[0063] The control unit 11 is provided with a location information acquisition unit 11a, a correction information acquisition unit 11b, an error correction unit 11c, a vehicle information transmission unit 11d, a nearby vehicle information acquisition unit 11e, an inter-vehicle information acquisition unit 11f, a driving assistance unit 11g, and a surrounding information acquisition unit 11h that acquires surrounding information of the moving vehicle from a fixed base station 20.

[0064] The storage device 12 has a vehicle information storage unit 12a, an inter-vehicle information storage unit 12b, and a surrounding information storage unit 12c that stores surrounding information acquired from the fixed base station 20, as storage areas.

[0065] According to the above-described configuration, the surrounding information acquired by the surrounding information acquisition unit 11h, specifically, advertising information about shops, tourist spots, events, etc., can be output to an output means such as an LCD panel on the mobile vehicle 1 side, thereby allowing the mobile vehicle 1 to display information (advertising) that is more closely related to the area in which it is traveling.

[0066] In addition, since the information processing server 30 is configured to be able to centrally manage the peripheral information transmitted from a large number of fixed base stations 20, it is also easy to update (edit) the peripheral information transmitted from each fixed base station 20. [Explanation of symbols]

[0067] 1. Mobile vehicles (mobile bodies) 2 GNSS unit (location information acquisition means) 7. Notification device (notification means) 8 Driving assistance devices (driving assistance means) 10 In-vehicle terminal (mobile terminal) 11b Correction information acquisition unit (correction information acquisition means) 11c Error correction section (correction means) 11e Nearby vehicle information acquisition unit (nearby vehicle information acquisition means) 11f Inter-vehicle information acquisition unit (inter-terminal information acquisition means) 20 fixed base stations 30 Information Processing Server 31b Vehicle information management unit (terminal location management means)

Claims

1. A plurality of mobile objects each equipped with a mobile terminal; a fixed base station configured to be able to communicate with the mobile terminal within a predetermined range; an information processing server configured to be able to communicate with the mobile terminal via a network; the moving body is a moving vehicle, the fixed base stations are installed on utility poles that are continuously provided along a route that the mobile object moves; the information processing server has a terminal location management means for managing location information of the mobile terminal that can communicate with the information processing server; The mobile terminal has a location information acquisition means for acquiring location information of the moving body from a positioning satellite, a correction information acquisition means for acquiring correction information from the fixed base station for correcting an error in the location information acquired by the location information acquisition means, a correction means for correcting an error in the location information based on the correction information, a nearby terminal information acquisition means for acquiring nearby terminal information including location information related to other mobile terminals within a predetermined range from the information processing server, and terminal-to-terminal information acquisition means for acquiring terminal-to-terminal information including a distance between the other mobile terminals within the predetermined range using the nearby terminal information, The correction information includes distance information from the mobile terminal to the fixed base station and location information of the fixed base station. Inter-terminal information acquisition system.

2. The moving vehicle is provided with a driving assistance means for assisting driving based on the terminal-to-terminal information. The terminal-to-terminal information acquisition system according to claim 1 .

3. The mobile terminal is configured to be able to acquire vehicle body information including vehicle width and vehicle length of other moving vehicles within a predetermined range as the nearby terminal information. The terminal-to-terminal information acquisition system according to claim 1 .

Images