Radio location and bidirectional information transmission

A two-way, information technology, applied in the direction of positioning, radio wave measurement system, radio/inductive link selection arrangement, etc., can solve the problems of positioning blind spots, long positioning time, and inability to perform three-dimensional positioning, etc., to achieve high confidentiality and safety Sexuality, low price, and short positioning time

Inactive Publication Date: 2004-06-09
仇伟军 +1
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention solves the following shortcomings in the existing wireless location and informa...

Method used

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  • Radio location and bidirectional information transmission
  • Radio location and bidirectional information transmission

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Embodiment Construction

[0007] When it is necessary to determine the position, the center requires the positioning device to give the signal strength and the ID number of the nearest base station to the locator. At the same time, the center receives feedback signals from other two base stations (each base station has a different ID number) that are close to the first base station. The signals fed back by the three base stations are different in the following three aspects. A. The ID number of each base station is different. B. The signal field strength is different. C. The time for signals fed back by different base stations to arrive at the center is different. Using these data, the center vector computer can calculate the three-dimensional coordinates of the locator by using the triangulation algorithm. The location of the target can be displayed on the electronic map on the screen of the central server.

[0008] At the same time, the uplink adopts spread spectrum frequency hopping technology, ...

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Abstract

A radio position and two-way information transmission is an accurate, three dimension positioning technology. Spectrum spread and FH is applied to up line, working band at 2M to 2.4G and three ways can be applied to down stream 1. POCSAG message call play, or Eurosignal bp or Eemes enhanced radio information system. The center asks a position device to give the signal intensity and the nearest ID number to the positioner and receives feedback signals transferred by other two base station devices close to the first which are different in three things: A. different ID number to each station B. different signal field intensities C. Different arriving time. The central vector computer computes the three-dimension coordinates of positioner by an triangle checking method.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and can carry out precise three-dimensional positioning on stationary or moving targets by using multi-base stations and a triangulation algorithm. At the same time, the uplink adopts spread spectrum frequency hopping technology, and the working frequency band is from 2M to 2.4G. Downlink can use three methods, first: POCSAG paging broadcast technology, second: Eurosignal paging technology, third: Eemes enhanced radio message system, for large-capacity, interactive information transmission and precise three-dimensional positioning. Background technique [0002] There are two technical systems for location and information services based on wireless, one is based on GPS technology, and the other is based on two-way paging technology. However, there are defects in both technical systems: A takes a long time to locate. B has positioning blind spots and cannot perform 3D positioning. ...

Claims

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Application Information

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IPC IPC(8): G01S5/02H04Q7/00
Inventor 仇伟军路友谊
Owner 仇伟军
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