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Method and device for monitoring vehicle coming on railway based on geomagnetic anomaly

A geomagnetic anomaly and railway technology, which is applied in the fields of railway signal and safety, can solve the problems that the accuracy rate is easily affected by the external environment, the system is complicated, and the cost is high, so as to achieve low manufacturing cost and use cost, good function scalability, and low power consumption. low effect

Active Publication Date: 2012-08-08
XIAN TECH UNIV
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Problems solved by technology

[0003] The present invention provides a method and device for monitoring incoming railway vehicles based on geomagnetic anomalies, so as to overcome the existing problems of complex systems, high power consumption, and high cost in the prior art, and at the same time, the accuracy rate is easily affected by the external environment

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  • Method and device for monitoring vehicle coming on railway based on geomagnetic anomaly
  • Method and device for monitoring vehicle coming on railway based on geomagnetic anomaly
  • Method and device for monitoring vehicle coming on railway based on geomagnetic anomaly

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the drawings and embodiments.

[0018] The basic principle of the method of the present invention is: the earth's magnetic field is basically constant within a certain time and space range. The ferromagnetic objects in the earth's magnetic field will be magnetized to varying degrees by the earth's magnetic field. When the additional magnetic field generated by the magnetized object is superimposed on the earth's background magnetic field, the smooth background magnetic field will be distorted.

[0019] The present invention provides a method for monitoring railway incoming trains based on geomagnetic anomaly, which is to sense the abnormal geomagnetic field caused by ferromagnetic components on the train through an anisotropic magnetoresistive sensor, and process and analyze the signal collected by the sensor, namely It can judge the incoming trains on the railway line.

[0020] See figure 1 Based on th...

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Abstract

The invention relates to the technical field of vehicle coming monitoring in railway or highway transportation, and specifically relates to a method and a device for monitoring vehicle coming on a railway based on geomagnetic anomalies. The prior art has problems of a complex system, high power consumption and high cost, and accuracy is susceptible to external environments in the prior art. To overcome the problems of the prior art, the technical scheme of the invention is the method for monitoring the vehicle coming on the railway based on the geomagnetic anomalies. According to the method provided in the invention, geomagnetic field anomalies caused by ferromagnetism components on a train are sensed by using aeolotropic-type magnetoresistive sensors, and processing and analysis are performed on signals acquired by using the sensors to determine the vehicle coming situations on railway lines. The method and the device provided in the invention has a simple structure, extremely low power consumption, low manufacturing cost and low usage cost, and is applicable to long term field monitoring.

Description

Technical field [0001] The invention relates to the technical field of incoming train monitoring for railway or highway transportation, and in particular to a method and device for monitoring incoming trains based on geomagnetic abnormality. Background technique [0002] For the sake of safety, it is necessary to perceive and monitor the running status of trains on railway lines. At present, the commonly used methods for monitoring incoming trains include: photoelectric or laser through-beam sensors, vibration sensors, and image recognition methods. The photoelectric detection method and vibration detection method are susceptible to interference from the external environment and easily cause false or false reports. At the same time, these two solutions also need to lay sensor transmission lines on the surface of the roadbed, which is not allowed by high-speed railways; image recognition methods require image recognition For collection and identification, the system is complex, po...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L23/00
Inventor 雷斌秦刚侯瑞王鹏吕志刚张海宁任安虎
Owner XIAN TECH UNIV
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