Railway unattended crossing automatic sound-light alarm system and method

Abstract

The invention discloses a railway unattended crossing automatic sound-light alarm system and method. The alarm system comprises a proximity sensor unit arranged on up and down railways to detect trainpassing information and send detection signals to a signal receiving unit, the signal receiving unit receiving the signals of the proximity sensor unit and sending the signals to a control unit afterrecognizing whether the signals are true or false, an alarm control unit controlling a crossing signal machine and a sound-light alarm device, a fault detection unit detecting the working conditionsof the proximity sensor unit, the signal receiving unit and / or the control unit in real time and sending abnormal signals to the control unit and / or uploading the abnormal signals to a far-end upper computer, a video monitoring unit conducting video monitoring, storing a crossing site and uploading monitoring signals, and a signal receiving and sending unit sending the abnormal signals of the fault detection unit and / or the video signals of the video monitoring unit, receiving remote control signals and sending the remote control signals to the control unit. The alarm method includes the stepsof train proximity detection, abnormity detection, video monitoring and alarm control.

Description

technical field [0001] The invention belongs to the technical field of railway signals, and in particular relates to an automatic sound and light alarm system and an alarm method for unguarded railway crossings with simple structure, safety and reliability, low false positives and false negatives, and high degree of automation. Background technique [0002] Railway level crossing is the level intersection of railway and highway, and is an important facility for railway safety operation. Crossing safety is not only related to the safety of railway traffic, but also the safety of road vehicles and pedestrians. Most large domestic enterprises in the fields of iron and steel, chemical industry, mines, and ports have railway transportation operations. In the enterprises, railway lines are integrated with highways, factory areas, workshops, and living areas, and various railway level crossings are formed along the railway lines. At present, considering the safety of locomotives, v...

AI Technical Summary

Problems solved by technology

However, due to the fact that the speed of the trains passing through the crossing is different, and the distance between the sensors on both sides is constant, it often takes too long to remove the alarm and / or close the crossing in advance, resulting in low crossing efficiency; or alarm and / or Or the closing time of the crossing is too short, and the safety hazard is prominent

In addition, due to the normal cooperation of multiple sensors and multiple controllers and actuators in the main control box to complete the scheduled alarm and / or closed crossing, any one of them in an abnormal state will lead to loss of control and cause irreparable losses , while the redundancy technology commonly used in the prior art can basically solve the above problems, but it will cause high cost and complex structure

In addition, although the unattended railway crossing adopts the above-mentioned automatic alarm and / or closed crossing technology, if the obstacles in the railway boundary area such as illegal crossing cannot be effectively monitored, there will be great safety hazards

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