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Displacement sensing and positioning system based on leak communication cable radio frequency communication technology and positioning method thereof

A communication cable and sensor positioning technology, which is applied in the direction of the beacon system using radio waves, etc., can solve the problems that the smooth real-time positioning of the whole line cannot be realized, the signal coverage area of ​​the card reader is limited, and the system failure rate is high, so as to reduce the late stage Maintenance workload, smooth real-time positioning of the whole line, and the effect of simplifying the system

Active Publication Date: 2013-03-20
安徽云海量子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional displacement sensing positioning system needs to install positioning card readers along the positioning area. Each card reader is composed of complex integrated circuits and radio frequency chips, and is connected by cables. A large number of card readers are installed , the installation workload is heavy, the later maintenance workload is heavy, and the system failure rate is high
Moreover, the signal coverage area of ​​each card reader is limited, and the positioning line can only realize the positioning within the signal coverage area, and cannot realize the smooth real-time positioning of the whole line.

Method used

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  • Displacement sensing and positioning system based on leak communication cable radio frequency communication technology and positioning method thereof
  • Displacement sensing and positioning system based on leak communication cable radio frequency communication technology and positioning method thereof

Examples

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Embodiment 1

[0020] Such as figure 1 As shown, the present invention includes a fixed station 2 communicating with an upper computer 1, a data processing module and a signal relay amplifier are arranged in the fixed station 2, and the input and output terminals of the signal relay amplifier are respectively connected to a group of two leakage communication cables L1, L2 For connection, a radio frequency card and a data processing module are installed in the mobile station 3, and the mobile station 3 communicates with the fixed station through the radio frequency card and the leaky communication cable. The upper computer 1 communicates with the fixed station 2 through CAN bus or RS-485 bus or coaxial cable or twisted pair or optical fiber. The signal relay amplifier of the fixed station 2 is connected to a set of two leaky communication cables L1, L2 through its input and output interface. The mobile station 3 moves along the line direction of a group of leaky communication cables L1 and L...

Embodiment 2

[0026] The following combination figure 2 The present invention is further described.

[0027] In this example, the signal relay amplifier of the fixed station 2 is connected to a leaky communication cable 4 . The mobile station 3 moves along the leaky communication cable 4. At any position, the mobile station 3 sends a positioning radio frequency signal to the leaky communication cable 4 through the radio frequency card. After the cable transmission is received by the fixed station 2, the fixed station sends back the radio frequency signal to the leaky communication cable. on, and received by mobile station 3. The timing of the mobile station 3 sending information is T1, the timing of receiving information is T2, and the total time of sending the positioning radio frequency signal and receiving the return radio frequency signal is T, where T=T2-T1. The total running cycle time T for the mobile station 3 to transmit and receive signals within one meter of the fixed station ...

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Abstract

The invention relates to a displacement sensing and positioning system based on leak communication cable radio frequency communication technology and a positioning method of the displacement sensing and positioning system. The displacement sensing and positioning system comprises a fixed station and a moveable station. The fixed station is provided with a data processing module and a signal relay amplifier. The signal relay amplifier is connected with a leak communication cable. The data processing unit is linked and communicated with the leak communication cable. A radio frequency card and the data processing module are arranged in the moveable station. The movable station moves along the leak communication cable and is communicated with the leak communication cable and the fixed station through the radio frequency card which is arranged in the moveable station. The movable station obtains transmission time of a positioning radio frequency signal and receipt time of a returned radio frequency signal by timekeeping, obtains location information which corresponds to the fixed station through calculation, and then achieves the displacement sensing and positioning of the moveable station. The displacement sensing and positioning system and the positioning method of the displacement sensing and positioning system based on the leak communication cable radio frequency communication technology can achieve all fronts smooth and real-time positioning, completely avoid the installation of a card reader, simplify a system, reduce installing workload and maintenance workload in later period and improve the stability of the system.

Description

[0001] technical field [0002] The invention relates to the field of displacement sensing positioning, in particular to a displacement sensing positioning system and a positioning method based on leaky communication cable radio frequency communication technology. [0003] Background technique [0004] At present, most of the traditional closed roadway position sensing and positioning systems are used on the positioning line, and radio frequency card readers are installed at each positioning point, and each card reader has a different identification code; radio frequency identification cards are installed on the mobile station, and each Each identification card also has a different identification code. When the mobile station moves to the vicinity of the card reader at the positioning point, the communication between the identification card and the card reader is realized. According to the mutual identification between the card reader and the identification card, the identi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S1/02
Inventor 童建伟
Owner 安徽云海量子科技有限公司
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