Vehicle-mounted ATP double-system switching method and logic unit of vehicle-mounted ATP
A logical unit, master-standby switching technology, applied in the field of rail transit, can solve problems such as switching failure
Pending Publication Date: 2021-12-24
通号城市轨道交通技术有限公司
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[0004] The present invention provides a vehicle-mounted ATP dual-system switching method and a logic unit of the vehicle-mounted ATP, which are used to solve the defect of switching failure caused by information asynchrony between the main system and the backup system in the prior art
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[0033] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0034] In the field of rail transit operation control, the on-board ATP system is the core of the train operation control system, and the on-board ATP host is the logic unit of the on-board ATP system. From the function and structure, the on-board ATP host can be divided into logic unit, input unit, output unit and communication unit. The vehicle-mounted ATP host adopts a dual-system redundant structure in design....
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The invention provides a vehicle-mounted ATP double-system switching method and a logic unit of a vehicle-mounted ATP, the method is applied to the logic unit of the vehicle-mounted ATP, and the method comprises the following steps: establishing main and standby system synchronization key data, enabling data of logic units of a main system and a standby system of a vehicle-mounted ATP host to be kept synchronous, if a previous device state is a main system, a current device state being a standby system; and if a related state information CRC value in the synchronous train position information is inconsistent with a position related state quantity CRC value in the local-end train position information, determining a main and standby position deviation based on the local-end train position information and the synchronous train position information; the local end train position information is determined based on external data received by the local end logic unit, the synchronous train position information is determined based on synchronous data received by the local end logic unit, and the synchronous data are periodically sent to the standby system logic unit by the main system logic unit; and on the basis of the main and standby position deviation, determining a main and standby switching result, and realizing switching of the vehicle-mounted ATP double systems.
Description
technical field [0001] The invention relates to the technical field of rail transit, in particular to a vehicle-mounted ATP dual-system switching method and a logic unit of the vehicle-mounted ATP. Background technique [0002] In the field of rail transit operation control, the on-board ATP (Automatic Train Protection System) system is the core of the train operation control system. Ensure the safety of trains. [0003] As the logic unit of the vehicle-mounted ATP system, the vehicle-mounted ATP host is responsible for the core logic of the automatic overspeed protection algorithm, and has the functions of safety input, safety output and safety logic processing. The vehicle-mounted ATP host adopts a dual-system redundant structure in design. When the main system fails, it switches to the standby system to continue running. However, after the main system is switched to the standby system, because the information of the main system and the standby system is not completely sy...
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Login to View More IPC IPC(8): B61L15/00B61L23/00
CPCB61L15/0063B61L23/00
Inventor 马冲周东蕴王磊秦亚芬曹学思马新成马晓梅徐之栋
Owner 通号城市轨道交通技术有限公司