Train approaching alarm terminal for railway construction

Abstract

The invention discloses a train approaching alarm terminal for railway construction. The train approaching alarm terminal comprises a mounting housing. A circuit mounting board is provided in the mounting housing. The circuit mounting board is provided with a circuit of the train approaching alarm terminal, which comprises a LoRa communication module, an external clock module, and a microcontroller. The microcontroller receives alarm information and polling information, and processes the information, and then controls the LoRa communication module to send a polling response message. The microcontroller also outputs a control signal to control a vibrator module and a LED module for alarming. The microcontroller also controls a communication module and a data collector to establish a connection relationship for data collection and upload, and synchronizes time through the data collector and a background supervision platform. The terminal solves many uncertainties caused by the communication environment and distance factors on the communication of walkie-talkies in the current railway construction. As a result, the timeliness of the train approaching alarm is improved, the false alarmrate of the train approaching alarm is reduced, the informationization degree of the field railway protection is improved, and the waste of human resources is reduced.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a train approach alarm terminal used for railway construction. Background technique [0002] In the process of railway operation, railway track construction is an important maintenance work, which can ensure the safety and smoothness of railway operation. For construction safety, safety protection is essential. The safety protection of the public works construction site basically adopts the joint defense method of station liaison officers and on-site guards. The station liaison officer mainly confirms some departure conditions and informs the on-site guards. The on-site guards mainly carry out safety reminders and protection on the site, and retreat to the safe area in time before the train arrives. The station liaison officer and the on-site protection officer mainly transmit driving information through the walkie-talkie, so as to achieve the purpose of joint defense. ...

AI Technical Summary

Problems solved by technology

[0003] However, the informatization of the current joint defense method is relatively low, and the requirements for the quality of all protective personnel are very high. Once one party is slack, major accidents are likely to occur

In the case of good line of sight, the effective transmission distance of the railway on-site walkie-talkie is about 3 kilometers. When there is interference, the communication quality of the walkie-talkie will be greatly reduced. In this case, the communication distance of the walkie-talkie may drop to a distance of 1 kilometer or even hundreds of meters

The uncertainty of this kind of communication quality sometimes makes the information transmission inaccurate and requires repeated confirmation, causing the alarm to be untimely, and even causing communication interruption in severe cases, making it impossible to transmit the alarm information, causing the alarm information to be missed, causing serious damage to construction and driving. come a very big unsafe factor

If the construction area is too far away from the liaison officer at the station, point-to-point communication may not be possible between the liaison officer at the station and the on-site guard, and only a guard can be added between the two to send a message. Sending a message by multiple people will increase the train information transmission. Error probability increases the difficulty of protection and wastes human resources

If the construction site is in a noisy environment, the voice of the walkie-talkie may be covered by the noise, and multiple confirmations may be required to accurately obtain the train information, or even the voice message cannot be heard, resulting in missed reporting of incoming train information

In addition, the walkie-talkie can only send a voice message to a single person at a time. If two or more people contact at the same time, the information will be lost and repeated confirmations will be required, which will also cause the alarm to be delayed.

How to solve the above exposed defects such as uncertainty of communication quality, untimely alarm, high false alarm rate, low informatization, high quality requirements for protective personnel, waste of human resources, etc.

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