Multipath temporary speed limit post answering device and method

Abstract

The invention discloses a multipath temporary speed limit post answering device and a multipath temporary speed limit post answering method. The device comprises a radio frequency control module, a baseband processing module and a main control module, wherein the radio frequency control module is used for receiving speed limit post signals and transmitting radio-frequency carrier signals, and comprises a plurality of antennae and a plurality of radio frequency units; each antenna is respectively connected with a corresponding radio frequency unit; an AD / DA converter and an FPGA multipath processing unit in the baseband processing module are connected through a data bus, and the baseband processing module is a transceiving module by taking digital signals as a core; and the main control module is used for scheduling and controlling the work of the whole system, and comprises a data receiving unit, an alarm unit, a control unit, a storage unit and a main control unit. The device has the function of reading and processing multipath speed limit post data in real time, and solves the problem of speed limit chaos because a common answering device cannot timely process multipath speed limit post data in the speed limit process on the basis of reducing system complexity and cost so as to improve driving safety.

Description

technical field [0001] The invention relates to the field of railway train speed limit control, and in particular provides a multi-channel temporary speed limit sign response device and method. Background technique [0002] During the running of the train, for the safety of the train, it often happens that a temporary speed limit is required in the construction site. When emergencies occur along the railway line or temporary speed limits are required for maintenance and construction, the driving information of the vehicle-mounted LKJ device is often unable to be updated in time. At the same time, the driver artificially looks out to identify the information on the signs along the line, which is prone to problems such as missing recognition and misidentification. These problems will endanger driving safety. And because the speed limit sign can be installed on any section of the railway, and can be installed and disassembled at any time, the locomotive can receive information ...

AI Technical Summary

Problems solved by technology

[0003] But the general method that adopts speed limit sign to carry out speed limit at present also has the following deficiencies: 1. When there are multiple speed limit signs that need to be processed at the same time, because there are many semaphores to be processed in the system, it is difficult for a common single answering device to read simultaneously Speed ​​limit sign data, resulting in missed reading of the speed limit sign, resulting in confusion of speed limit information; 2. Multi-system online processing of multi-channel speed limit sign mode requires a large number of external circuits and high system cost, which increases the complexity of the system

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