Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and circuit for detecting axle counting frequency signals

A technology of frequency signal and detection method, applied in the direction of frequency measurement device, frequency to amplitude conversion, etc.

Active Publication Date: 2013-10-02
MIANYANG WEIBO ELECTRONICS
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of this, the embodiment of the present application provides a method and circuit for detecting the axle counting frequency signal to solve the problems existing in the existing axle counting system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and circuit for detecting axle counting frequency signals
  • Method and circuit for detecting axle counting frequency signals
  • Method and circuit for detecting axle counting frequency signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0111] Image 6 It is a structural block diagram of an axle counting frequency signal detection circuit provided in the embodiment of the present application.

[0112] Such as Image 6 As shown, the axle counting frequency signal detection circuit includes: a voltage input circuit 10, a voltage isolation circuit 20, a first band-pass filter circuit 31, a second band-pass filter circuit 32, a third band-pass filter circuit 33, and three data processing circuit 40 and three frequency measurement circuits 50 .

[0113] The voltage input circuit 10 is connected to the detection sensor arranged at the detection site, and is used to receive the voltage signal input by the detection sensor, that is, to receive the voltage signal sent by the outdoor unit. The voltage signal received here is a coincidence signal. In the voltage signal, Contains multiple frequency signals.

[0114] The input end of the voltage isolation circuit 20 is connected to the voltage input circuit 10 for perf...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The application discloses a method and circuit for detecting axle counting frequency signals. The method comprises the following steps: receiving and detecting voltage signals input by a sensor; performing voltage isolation processing to the voltage signals; performing band-pass filtering with multiple different frequencies to the isolated voltage signals; performing data processing and frequency measurement to each filtering signal subjected to band-pass filtering processing so as to obtain characteristic information of three frequency signals, wherein the characteristic information comprises a value of amplitude of voltage and a frequency value. The method adopts the manner of combination of high-pass filtering and band-pass filtering to finish processing the input voltage signals, parallel processing of three frequency bands is performed to the input voltage signals through the topological structure, and the problem existing in the conventional axle counting system is solved.

Description

technical field [0001] The present application relates to the technical field of railway equipment detection, in particular to a method and circuit for detecting an axle counting frequency signal. Background technique [0002] Axle counting, also known as microcomputer axle counting, is the largest installed equipment in stations at both ends of the railway. It uses closed-loop sensors installed on the rails to monitor the number of train wheel pairs passing by. The number is sent to the other station by semi-automatic equipment. After the train arrives at the other station, the other station will automatically open the interval when the number of wheel pairs received by the other station is the same as that of the departure station. That is to say, the axle counting is a railway signal device that can detect passing wheels. Since the axle counting does not need to be installed with track insulation, this avoids sawing off the welded long rails due to the insertion of insula...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01R23/06
Inventor 景小军邹琼倪伟戚继飞
Owner MIANYANG WEIBO ELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com