Method, device and ground sensing detection system for eliminating adjacent channel interference of ground sensing coil

A technology of adjacent lane interference and detection system, applied in the field of parking lot, can solve problems such as large construction cost and labor cost, and achieve the effects of reducing detection sensitivity, reducing vehicle misdetection events, and reducing the incidence rate

Active Publication Date: 2021-01-12
SHENZHEN JIESHUN SCI & TECH IND
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Problems solved by technology

It can be seen that both of the above two methods need to be re-constructed, which will cost a lot of construction and labor costs.

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  • Method, device and ground sensing detection system for eliminating adjacent channel interference of ground sensing coil
  • Method, device and ground sensing detection system for eliminating adjacent channel interference of ground sensing coil
  • Method, device and ground sensing detection system for eliminating adjacent channel interference of ground sensing coil

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] The embodiment of the present invention discloses a ground sensing coil adjacent channel interference elimination method, which is applied to a ground sensing detection system, wherein the ground sensing detection system includes adjacent first ground sensing coils and second ground sensing coils; see figure 1 As shown, the above methods include:

[0045] Step S11: monitoring whether there is adjacent channel interference between the first ground induct...

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Abstract

The invention discloses a ground induction coil adjacent channel interference elimination method, a ground induction coil adjacent channel interference elimination device and a ground induction detection system. The ground induction coil adjacent channel interference elimination method comprises the following steps: monitoring whether an adjacent channel interference phenomenon is caused between a first ground induction coil and a second ground induction coil or not; when monitoring that mal detection operation is resulted from interference of the second ground induction coil by the first ground induction coil, increasing a target oscillation frequency threshold corresponding to the first ground induction coil; wherein the target oscillation frequency threshold is an oscillation frequency threshold used when a vehicle running close to the first ground induction coil is detected. By adopting the method, when the situation that mal detection operation is resulted from interference of the second ground induction coil by the first ground induction coil is monitored, the target oscillation frequency threshold corresponding to the first ground induction coil is increased, and then a corresponding gate can be opened only if oscillation frequency induced by the first ground induction coil in real time is within a relatively high frequency range, so that the detection sensitivity of the first ground induction coil is degraded, and the probability of mal detection events of vehicles can be reduced.

Description

technical field [0001] The invention relates to the technical field of parking lots, in particular to a method, a device and a ground sensing detection system for eliminating interference from adjacent channels of a ground sensing coil. Background technique [0002] At present, the parking lot usually uses a ground sensing detector to sense the vehicles entering and leaving the parking lot. However, when the construction workers of the parking lot are laying the ground sense coils on both sides of the entrance and exit of the parking lot, the ground sense coils on both sides may be relatively close to each other, so that the magnetic fields of the ground sense coils on both sides are superimposed on each other, thus making the ground sense The ground sensing processor in the detector sometimes misdetects events, and this interference phenomenon is called adjacent channel interference. [0003] When the adjacent road interference phenomenon occurs, in order to eliminate the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B5/00H04B15/00
CPCH04B5/0075H04B15/00
Inventor 唐健李利杰董俊飞杨宏卫
Owner SHENZHEN JIESHUN SCI & TECH IND
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