Communication method and system during train crossing

Abstract

The embodiment of the invention discloses a communication method and system during train crossing. The method comprises the following steps of: on the basis of a GPS (Global Positioning System) network, obtaining the position information of each crossing train; on the basis of the position information of each crossing train, obtaining the position information of each base station under a double-loop communication network; when a communication condition under crossing is met, in a communication process, writing the data information of each crossing train to the base station which meets a crossing condition by a regional control unit in the double-loop communication network; and analyzing the data information of each crossing train in a TDMA (Time Division Multiple Address) protocol by the base station, and sending communication data to each crossing train on the basis of a way of millimeter wave communication. When the embodiment of the invention is implemented, on the basis of a time slot frame in the TDMA, a corresponding time slot frame is distributed to each train under crossing, the corresponding data information is written on the basis of the time slot frame, a data communication process in the train crossing process is realized, and the use ratio of the time slot frame is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for communication in train meeting. Background technique [0002] GSM-R (GSM for Railway) is called the railway mobile communication system standard in Chinese. It is similar to the GSM network standard with the largest coverage in my country. It is the first mobile communication railway special system introduced by China from Europe. With the maturity of GSM technology, the rapid expansion of the scope of use, the gradual decline in cost, and because of the rapid expansion of users, the problems of trunking mobile communication solutions have become increasingly prominent, and the European railway mobile communication system is finally positioned on GSM The method, that is, adding some elements suitable for high-speed mobile environment to the GSM standard, this technology has been highly praised in Europe, where GSM was initiated. Germany, France, the...

AI Technical Summary

Problems solved by technology

[0005] The existing railway communication system (GSM-R) adopts the GSM network. Since the traffic channel (TDMA time slot) is greater than or equal to 4, there is no need for channel reassignment due to meeting trains, so there is no special processing process, and due to traffic Channels are not allocated according to the number of users, and the utilization efficiency is not high

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