A dual-channel trusted acquisition method with different meshing code distances

A collection method and dual-channel technology, applied in the field of rail transit, can solve problems such as not reflecting the correct status of peripherals, and achieve the effect of improving collection reliability and avoiding missed collection

Active Publication Date: 2019-03-01
CASCO SIGNAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] When the sampling frequency is one-nth of the jitter frequency, the sampling results of the two channels cannot reflect the correct state of the peripherals

Method used

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  • A dual-channel trusted acquisition method with different meshing code distances
  • A dual-channel trusted acquisition method with different meshing code distances
  • A dual-channel trusted acquisition method with different meshing code distances

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] The invention is a dual-channel acquisition method with different meshing code distances, which can accurately reflect the jitter state of peripheral equipment by adopting the method of dual-channel time-sharing acquisition and dual-channel acquisition time interval showing different meshing code distances. It solves the defects brought by the traditional dual-channel acquisition very well.

[0027] The specific method is described as fo...

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Abstract

The invention relates to a dual-channel reliable collection method for different meshing codes. Dual-channel time sharing collection is adopted, and dual-channel collection time interval is in a mode of different meshing codes. Compared with the prior art, the dual-channel reliable collection method provided by the invention has the advantages of avoiding the collection leakage of various oscillation signals, and greatly improving the collection reliability, etc.

Description

technical field [0001] The invention relates to a signal acquisition technology in the field of rail transit, in particular to a dual-channel credible acquisition method with different meshing code distances. Background technique [0002] In the field of rail transit, the acquisition of the peripheral status is currently generally adopted by the dual-channel simultaneous acquisition method, that is, after the acquisition is started, the two channels use the same acquisition frequency to simultaneously acquire the peripheral status in one acquisition cycle, and finally obtain Acquisition result of peripheral status. [0003] Using the above collection method to collect the peripheral state is relatively simple to implement technically, but it has the following defects: [0004] Assuming that there is regular jitter in the peripherals, if the sampling frequency used for dual-channel acquisition is the same as the jitter frequency or the sampling frequency is one nth of the ji...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M1/54
CPCH03M1/54
Inventor 周庭梁方圆陈宜航刘畅张涛王建涛傅李育周宇恒
Owner CASCO SIGNAL
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