System and method for realizing train position alarm by lora local area network constructed by three channels

Abstract

The invention discloses a system for achieving train position alarm based on a LoRa local area network constructed by three information channels. The system comprises a head communication node, multiple intermediate communication nodes, a tail communication node and multiple terminal nodes, wherein the head communication node, the intermediate communication nodes and the tail communication node form a main network in sequence, the communication nodes in the main network communicate in a LoRa pass-through mode, the communication nodes transmit polling signaling and alarm signaling to the corresponding terminal nodes in the LoRa pass-through mode and by using the first information channel, the terminal nodes transmits response signaling to the corresponding communication nodes in the LoRa pass-through mode and by using the second information channel, thereby forming a local area network, the head communication node generates alarm signaling when detecting that a train arrives, and the alarm signaling is transmitted to the tail communication node through a LoRa relay pass-through mode and by using the first information channel and the third information channel in the main network. Thesystem for achieving the train position alarm based on the LoRa local area network constructed by the three information channels can solve the technical problem that an existing alarm system cannot alarm the specific position of a train in a protective railway section.

Description

technical field [0001] The invention belongs to the field of railway operation safety, and more specifically relates to a system and method for realizing a train position alarm through a LoRa local area network constructed by three channels. Background technique [0002] Railway track maintenance and renovation has always been an important task of the railway department, especially in recent years, with the demand for electrification and informationized railway operation management, and the acceleration of the speed of trains, the construction of railway tracks has become more frequent. It has brought great challenges to the safety protection work of railway track construction. Especially in special environments such as tunnels, curves, and mountainous areas, the limited and short visual distance, poor communication conditions and other factors have brought great difficulties to timely and accurate alarms for trains approaching construction personnel. [0003] At present, a...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the above defects or improvement needs of the prior art, the present invention provides a train position alarm system and method based on LoRa three-channel local area networking. , The same frequency interference within the channel leads to low system timeliness, and the technical problems of interference in the transmission process of alarm signaling

Images