Device for monitoring railway foreign body intrusion by using dynamic signal

A technology of foreign object invasion and dynamic signal, which is applied in the direction of measuring device, utilization of re-radiation, re-radiation of sound waves, etc., can solve the problem of false connection of foreign object power grid, non-compliance with the principle of dynamic driving and monitoring of railway signals, and affecting the safety of foreign object power grid, etc. problem, to achieve the effect of improving reliability and safety

Inactive Publication Date: 2010-06-09
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the foreign object grid of the DC signal is disconnected, if the grid line is connected to other DC signals, it will cause a false connection of the foreign object grid. This state is extremely dangerous.

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
  • Device for monitoring railway foreign body intrusion by using dynamic signal
  • Device for monitoring railway foreign body intrusion by using dynamic signal
  • Device for monitoring railway foreign body intrusion by using dynamic signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0015] The invention provides a device for monitoring foreign object invasion on a railway using a dynamic signal.

[0016] The signal generation and power amplification circuit uses LC circuit as the signal generation circuit to generate approximate square wave signal, which is shaped by hysteresis comparator, and then amplified by power triode to realize audio dynamic signal generation, power amplification and dynamic output, such as figure 2 shown. When the foreign object grid adopts the multi-layer grid mode, audio signals of different frequencies are used.

[0017] The audio dynamic power signal output by the signal generation and power amplifier circuit is connected to the main side of the audio transformer in...

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 invention discloses a device for monitoring railway foreign body intrusion by using a dynamic signal, and belongs to the field of disaster prevention and reduction of the foreign body intrusion in rail environment monitoring. In the method for monitoring railway foreign body intrusion, an alternating current signal is adopted, the voltage and power of an input signal and an output signal are monitored, and the signals are ensured not to lead in other signals to cause abnormal work of a power grid due to seton. The multi frequency point working mode of an audio signal ensures that a plurality of paths of power grid cable signals on the same power grid support frame work at different frequencies. If any key device in a drive loop goes wrong, a falling-object relay falls. Due to the adoption of a transformer isolation signal, DC isolation is realized between the interior and the exterior of a board, and the reliability and the safety of the circuit are improved. The AC dynamic mode foreign body sensor has higher safety and reliability than the DC mode foreign body sensor, and accords with guide safety principle of the field of railway signals.

Description

technical field [0001] The invention belongs to the field of disaster prevention and mitigation of foreign matter invasion limit for railway environment monitoring, and in particular relates to a device for monitoring foreign matter invasion limit of railways using dynamic signals. Background technique [0002] With the development of high-speed railway technology, railway disaster prevention, as a major engineering project, has become a major engineering and technical problem for every newly built high-speed railway, which affects the driving safety of high-speed trains, specifically manifested in weather factors, geological factors and man-made These factors can cause major traffic safety accidents. Especially the invasion of foreign objects caused by geological factors and human factors, such as falling rocks on steep slopes and falling foreign objects on bridges, will directly cause train derailment or even greater safety driving accidents. Therefore, the foreign matter...

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
IPC IPC(8): G01V3/08
Inventor 张智祥
Owner BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap