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Position guarantee server, position guarantee system, and position guarantee method

A technology of server and location information, applied in the system field, can solve problems such as inability to guarantee location, time-consuming, mixed error information, etc., and achieve high location assurance and instant response reliability.

Inactive Publication Date: 2007-03-14
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The existing position assurance system is constituted as above, and there is a problem that it takes time until the position is guaranteed or the position cannot be guaranteed.
[0013] In addition, since the existing system is configured to calculate the position or longitude and latitude by a digital camera or a positioning terminal, there is a problem that erroneous information may be easily mixed

Method used

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  • Position guarantee server, position guarantee system, and position guarantee method
  • Position guarantee server, position guarantee system, and position guarantee method
  • Position guarantee server, position guarantee system, and position guarantee method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0058] A position assurance device and system that obtain position assurance immediately after a request for position assurance and have high accuracy of assurance will be described.

[0059] As such a location assurance service providing system, examples of the system shown in FIG. 2 include a road toll system that proves that a certain vehicle is in a toll area, an information security system that proves that a vehicle is in an area where confidential documents can be read, and the like. Such a position guarantee system adopts the following structure: the following parts are connected through a communication network such as a wireless communication network and a wired communication network such as the Internet: the positioning terminal 10 receives a GPS signal, requests a position guarantee at a certain position at a certain time, or further requests the position. Guarantee of position accuracy information; position guarantee server 20 (hereinafter referred to as server), whi...

Embodiment approach 2

[0073] Describe a system that is more difficult to tamper with location information.

[0074] FIG. 5 shows the system configuration of this embodiment. The hardware structure is the same as that in FIG. 1, but the server 20 receives not only the GPS signal from the positioning terminal 10b but also the position and time information of the base station 40 connecting the positioning terminal 10b to the communication network.

[0075] The operation of the system in this configuration is basically the same as that of Embodiment 1, but the difference is as follows.

[0076] After the server 20 receives the position guarantee request from the terminal, in the step of S34b in FIG. Time, where, for example, in the case of a mobile terminal, the base station 40 used by the mobile phone for communication is a position on the communication network.

[0077] The server 20 outputs a location guarantee with the network location added to the location guarantee request from the terminal.

...

Embodiment approach 3

[0091] A location assurance system that improves the accuracy of terminal location information itself will be described.

[0092] The system configuration in this embodiment is the same as that in FIG. 2 . In addition, FIG. 8 shows a hardware configuration. This configuration is provided on the server 20d side: a signal storage unit 25 that records the decoded transmission data in association with the calculated position and time; and a signal removal unit 26 that uses the information recorded in the signal storage unit 25 to Unnecessary signals mixed in the decoded data are removed.

[0093] The operation of this configuration is basically the same as that of Embodiment 1, but the following operations are added.

[0094]As a signal removal step, the signal removal unit 26 outputs the transmission data decoded by the decoding unit 23 of the server and the ID of the positioning terminal 10 extracted at the same time to the signal removal unit 26 in S32b. Then, the signal rem...

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PUM

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Abstract

To obtain highly reliable position guarantee that makes it difficult for data to be tampered with and allows a prompt response. A position guarantee server includes: a communication section that receives from a positioning terminal transmission data including encoded data of a positioning code and a carrier wave from a positioning satellite by using the identification code of the positioning terminal itself; a decoding section (23) that stores the identification code of the positioning terminal and decodes the transmission data by using the identification code; a position computing section (24) that computes the position of the positioning terminal based on the positioning code decoded and the carrier wave decoded by the decoding section; and a certificate generating section (22) that certifies position information that is obtained by the position computing section. The certificate generating section certifies the position information by the position computing section upon receipt of a position guarantee request from the positioning terminal.

Description

technical field [0001] The present invention relates to a system and equipment related to position authentication using positioning satellite information and the like. Background technique [0002] Conventionally, there are systems for determining the position of a mobile object such as a portable terminal and securing the position. The conventional position assurance system described in Patent Document 1 authenticates position information obtained by using GPS (Global Positioning System, Global Positioning System) or the like using information from three or more positioning satellites, time information itself, and the like. As its structure, the positioning terminal (digital camera) encodes longitude / latitude information generated from GPS radio waves received by the GPS receiver, and transmits it to the server as position information. The server decodes the location information, generates location determination data according to the obtained longitude / latitude information...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/14G01S5/00G01S19/09G01S19/39
CPCG01S19/39G01S19/09G01S19/396G01S5/02
Inventor 斋藤谦一
Owner MITSUBISHI ELECTRIC CORP
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