Control method and control system
A control method and technology for a control system, which are applied in the field of control methods and control systems for improving the effectiveness and security of data communication, and can solve problems such as inability to receive effective application data from external devices.
Active Publication Date: 2018-05-22
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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Problems solved by technology
[0003] In the existing technology, both the main system and the backup system of the interlocking equipment of the local station use the external application data received by the main system. The main system and backup system of the interlocking equipment of this station will fail to receive valid application data from the external equipment.
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[0012] In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some embodiments of the present invention, rather than all embodiments of the present invention, and it should be understood that the present invention is not limited by the exemplary embodiments described here. Based on the embodiments described herein, all other embodiments obtained by those skilled in the art without creative effort shall fall within the protection scope of the present invention. In this specification and the drawings, substantially the same elements and functions will be denoted by the same reference numerals, and repeated descriptions of these elements and functions will be omitted. Also, descriptions of functions and constructions that are well known in the art may...
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The invention discloses a control method. The method comprises the following steps that: a first device and a second device respectively receive data at a predetermined period; the first device and the second device respectively perform communication layer verification on the data respectively received by the first device and the second device; the first device stores first predetermined data packets in the data which have passed the communication layer verification of the first device into a synchronous switching unit, and the second device stores second predetermined data packets in the datawhich have passed the communication layer verification of the second device into the synchronous switching unit; the first device selects a data packet satisfying a predetermined condition from the first predetermined data packets and the second predetermined data packets, and the second device selects a data packets satisfying a predetermined condition from the first predetermined data packets and the second predetermined data packets; the first device and the second device respectively perform application layer verification on the respectively selected data packets satisfying the predetermined conditions; and the first device and the second device respectively analyze the data packets which have passed the respective application layer verification of the first device and the second device.
Description
technical field [0001] The invention relates to a control method and a control system, in particular to a control method and a control system capable of improving the effectiveness and safety of data communication. Background technique [0002] In the train operation control system, the interlocking equipment of this station needs to communicate periodically with the external zone controller ZC and the interlocking equipment of adjacent stations. Usually, the interlocking device adopts a two-by-two (two out of two) dual-system working mode, that is, the interlocking device includes two devices of the main system and the backup system. The external ZC and the interlocking equipment of neighboring stations only use the data of the main system of the interlocking equipment of this side. When the communication link between the single system (main system or backup system) of the local interlocking equipment and the external ZC and adjacent station interlocking equipment is abnor...
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IPC IPC(8): G05B23/02
CPCG05B23/0213
Inventor 任军宿秀元侯金川邱锡宏江明
Owner CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD