Train curve prewarning system and prewarning method of wireless sensor network

A wireless sensor and early warning system technology, applied in the direction of railway signal and safety, etc., can solve the problem of immature automatic alarm system when leaving the car curve, achieve the effect of enhancing the function of human-computer interaction and improving the anti-interference performance

Inactive Publication Date: 2010-01-27
HARBIN INST OF TECH
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However, the automatic warning system

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  • Train curve prewarning system and prewarning method of wireless sensor network
  • Train curve prewarning system and prewarning method of wireless sensor network
  • Train curve prewarning system and prewarning method of wireless sensor network

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0040] combine figure 1 , the train curve early warning system of the wireless sensor network in this embodiment is mainly composed of a wireless sensor convergence node and a wireless sensor node. , alarm circuit, LED display, LCD display and power supply system, RF radio frequency transceiver module, MEMS acceleration sensor, GPS module, inclinometer circuit, alarm circuit, LED display, LCD display and power supply system are connected to the microprocessor module, wireless sensor The node is composed of a microprocessor module, a wireless transceiver module, an inclinometer module, an accelerometer module, a GPS module and a power module, and the wireless transceiver module, an inclination module, an accelerometer module, a GPS module and a power module are connected to the microprocessor module, MEMS acceleration sensors and accelerometer modul...

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Abstract

The invention provides a train curve prewarning system and prewarning method of a wireless sensor network. The prewarning system mainly comprises a MEMS accelerometer module, a data acquisition module, a GPS global positioning system, a wireless transceiving module, a hazard warning module and a display module. A wireless sensor node uses a MEMS accelerometer to detect a train centripetal acceleration, and the centripetal acceleration is compared with an acceleration threshold at a train curve; if the detected acceleration is higher than an alarm value or a preset value of a system, a lateral acceleration value is sent to a wireless sensor sink node, the sink node adopts the form of acousto-optical warning to warn the train driver to slow down and displays the current geographical position through the display module, the maximum lateral acceleration value and the limit running speed of the train at the curve on a liquid crystal display (LCD) module so as to prevent the train from generating rollover due to overspeed. The system has small volume and high reliability, can be applicable to ordinary trains or motor cars, and has an important role in improving the running safety for trains.

Description

(1) Technical field [0001] The invention relates to a safety monitoring and alarm system, in particular to a train curve early warning system. (2) Background technology [0002] With the continuous development of science and technology and the gradual acceleration of the pace of society, people have put forward higher requirements for the speed of transportation. However, for the train as a means of transportation, the reliability and stability of the train has always been trusted by the public, but once a train accident occurs, it will bring huge losses to the society. In recent years, due to the continuous speeding up of railways, more and more problems that did not appear before the speeding up have been manifested, causing huge losses to the lives of the people and the property of the country. For example, on April 28, 2008, Beijing The T195 train bound for Qingdao derailed due to the high speed at the bend near Zhoucun and collided with another train, killing 72 people...

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Application Information

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IPC IPC(8): B61L23/00B61L25/00
Inventor 刘晓为张海峰段加林吕炳均
Owner HARBIN INST OF TECH
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