Portable temporary speed limit detecting terminal and maintenance method thereof

Abstract

The invention discloses a portable temporary speed limit detecting terminal and a maintenance method thereof. A system comprises a portable terminal, a wireless communication module, a railway administration server and an electronic speed limit post. The railway administration server assigns a temporary speed limit maintenance task according to a received application of temporary limit control, relief, detection or modification, and a worker carries the portable terminal and goes to the speed limit area to finish the maintenance task. During maintenance, the portable temporary speed limit detecting terminal communicates wirelessly with the electronic speed limit post in a near field by a radio-frequency module of the portable terminal, and the near field wireless communication comprises reading and writing electronic speed limit post type information; and the portable temporary speed limit detecting terminal communicates wirelessly with the railway administration server in a long distance by a wireless communication module to finish interaction of related data during maintenance. The portable terminal mainly comprises a main control module, the radio-frequency module, a GSM-R module, an IC card recognition unit, a serial module and a power module. In a railway temporary speed limit system adopting the electronic speed limit post, the portable temporary speed limit detecting terminal can play the characteristics of mobility, flexibility, safety and high efficiency.

Description

technical field [0001] The present invention relates to railway temporary speed limit, and more specifically relates to a portable temporary speed limit detection terminal and maintenance method that can play an important role in the temporary speed limit system and act near the railway speed limit area. Background technique [0002] In order to avoid train delays, drivers of passenger and freight trains generally require "running close to the line". Usually, a yellow circular speed limit sign indicating the speed limit is set at a certain distance in front of the temporary speed limit point. The distance between the temporary speed limit mark and the deceleration point varies according to the speed per hour of different trains. [0003] When using this traditional temporary speed limit sign, on the one hand, the driver tries to "run along the line" as much as possible, and on the other hand, he must pay attention to the temporary speed limit sign. Along with train speeding...

AI Technical Summary

Problems solved by technology

Because the ground electronic speed limit sign itself is divided into various types according to the existing traditional speed limit signs, it is easy to cause confusion, resulting in the wrong placement of the speed limit label, which brings potential harm to driving.

At the same time, the installed electronic speed limit signs require routine maintenance

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