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Desired signal identification method, device, ground tracking equipment and system

A technology of expected signal and identification device, applied in the field of signal identification, can solve the problems of poor anti-noise interference ability, affecting tracking accuracy, etc., to achieve the effect of identification

Active Publication Date: 2021-01-29
CHINA SPECIAL EQUIP INSPECTION & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods all have the problem of poor anti-noise interference ability, which affects the tracking accuracy

Method used

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  • Desired signal identification method, device, ground tracking equipment and system
  • Desired signal identification method, device, ground tracking equipment and system
  • Desired signal identification method, device, ground tracking equipment and system

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Embodiment Construction

[0053] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0054] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0055] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0056]In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have diff...

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Abstract

The invention discloses a method, device, ground tracking device and system for identifying an expected signal. The method includes: triggering on a rising edge of the expected signal, and generating a clock signal after a set first delay, wherein the clock signal The frequency is equal to the frequency of the desired signal, and the first delay is less than the pulse width of the desired signal; within the set sampling time, the desired signal is sampled according to each rising edge of the clock signal; In the case that each sampling result obtained by sampling is a high level, it is identified that the expected signal is received.

Description

technical field [0001] The present invention relates to the technical field of signal identification, and more specifically, the present invention relates to an expected signal identification method, an expected signal identification device, a ground tracking device, and a ground tracking system. Background technique [0002] The tracking device can track the time point when the target device arrives near itself. Specifically, the tracking of the target device can be realized by identifying a fixed-frequency signal sent by the target device. For example, in order to conduct regular inspection and cleaning of pipelines, corresponding pipeline operation equipment can be installed in the pipeline. In order to know the working status of pipeline operation equipment, ground tracking equipment is usually installed at multiple locations on the ground. Each ground tracking equipment Tracking of pipeline working equipment can be achieved by identifying fixed frequency radio signals e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S11/02
CPCG01S11/02
Inventor 马义来陈金忠何仁洋邵卫林李春雨
Owner CHINA SPECIAL EQUIP INSPECTION & RES INST