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Method for inhibiting inter-lane interference, coupler and reader

A near-channel interference and reader technology, applied in the field of communications, can solve the problems of narrow antenna coverage, small spacing, and reduced reader recognition accuracy.

Inactive Publication Date: 2013-01-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are following defects in the current non-stop charging system: usually a toll booth has multiple lanes side by side to charge at the same time, the distance between adjacent lanes is small, and the antenna coverage of the reader can not be done very narrow (communication The area is about 2 to 10 meters in front of the automatic railing), and there will be road interference in actual operation
Make the reader trade with the vehicle-mounted machine in the adjacent lane, reducing the recognition accuracy of the reader

Method used

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  • Method for inhibiting inter-lane interference, coupler and reader
  • Method for inhibiting inter-lane interference, coupler and reader
  • Method for inhibiting inter-lane interference, coupler and reader

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Embodiment Construction

[0039] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0040] Reference figure 1 , An embodiment of the method for suppressing adjacent channel interference according to the present invention is proposed, including:

[0041] Step S10, the reader of the non-stop toll collection system receives signals from the vehicle-mounted device through two antennas;

[0042] Step S11, coupling the signals received by the two antennas into a sum signal and a difference signal;

[0043] Step S12, comparing the difference between the sum signal and the difference signal;

[0044] Step S13: Determine whether the vehicle-mounted device is located in the lane to which the reader belongs according to the difference.

[0045] When the vehicle enters the communication area of ​​the reader (the lane where the reader is located or an adjacent lane), the reader detects the vehicle mounted on the vehic...

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PUM

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Abstract

The invention discloses a method for inhibiting inter-lane interference, and the method comprises steps that a reader of a nonstop charging system receives a signal of a vehicle receiver through two antennas; the signals received by the two antennas are coupled into a sum signal and a difference signal; a difference value of the sum signal and the difference signal is compared; and whether the vehicle receiver is located on a lane of the reader or not is judged according to the difference value. The invention also provides a coupler and a reader. Through the method for inhibiting the inter-lane interference, the coupler and the reader, the vehicle receiver of a local lane can be accurately identified.

Description

Technical field [0001] The present invention relates to the field of communication, in particular to a method, coupler and reader for suppressing adjacent channel interference. Background technique [0002] The non-stop toll collection system belongs to the field of expressway communication. The application frequency band is 5800MHz. The application scene is expressway toll. The reader is set up at the expressway toll intersection to communicate with the car's on-board machine to perform charging and other related operations, so that the car does not need to slow down You can pass the toll intersection and achieve the purpose of non-stop toll. However, the current non-stop toll collection system has the following shortcomings: usually a toll station has multiple lanes side by side for charging at the same time, the distance between adjacent lanes is small, and the antenna coverage of the reader cannot be very narrow (communication The area is about 2 to 10 meters before the auto...

Claims

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Application Information

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IPC IPC(8): G06K7/00G07B15/06
CPCG07B15/063G06K7/10079
Inventor 冯春楠张欣王金龙刘胜杰
Owner ZTE CORP