Data real-time updating method for train passenger information display

Abstract

The invention discloses a data real-time updating method for a train passenger information display. A control method processes data transmitted by a communication module; the communication module receives a control instruction of the control module, reads data of a storage module according to the data transmitted by the communication module, outputs a control signal to a display module and displays data information in real time; a frame of control instruction received by the display module comprises a display control instruction, display character data and color screen information; the display character data of fixed content is stored into the storage module; and the display character data of the fixed content is encoded by using a similar zone bit code which is not used in an encoding standard, so that the display character data of each fixed content is represented by the corresponding similar zone bit code. By the method, the technical problems of relatively long word length of the control instruction, large storage space occupied by character displaying, low instantaneity, low communication speed and low efficiency of the conventional method are solved; and therefore, the bit number of communication transmission is greatly reduced, and the communication speed and the communication efficiency are improved.

Description

technical field [0001] The invention relates to a data display method, in particular to a fast real-time data update display method applied to train passenger information displays in stations, subways, trains and other occasions. Background technique [0002] In recent years, passenger information displays have been widely used in stations, subways, and trains as a carrier for broadcasting information such as train speed, station, temperature, and advertisements. figure 1 Display system block diagram for passenger information. Passenger information display system includes cab system controller, Monitor information relay and passenger information display. [0003] 1. System controller [0004] Send control instructions and process the data returned by various equipment on the train. [0005] 2. Monitor information relay [0006] The Monitor information relay is mainly used to timely distribute the control instructions sent by the system controller. And send the data retu...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a real-time update method for train passenger information display data, which can solve the problem that the existing train passenger information display data real-time update method has a long control instruction word length, character display takes up a large storage space, and has poor real-time performance. , the technical problem of slow communication speed and low efficiency. Under the same bit error rate, the number of bits transmitted by communication is greatly reduced, and the speed and efficiency of communication are improved.

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