A head-to-tail redundancy system of vehicle signaling equipment and its execution method

Abstract

The invention discloses a head-to-tail redundancy system of a vehicle-mounted signal device and an execution method thereof. The head-to-tail redundancy system is composed of a head-end vehicle-mounted ATP device connected to a tail-end vehicle-mounted ATP device, and the vehicle-mounted ATP device includes an OBCU, a data processing unit and external devices , both the OBCU and the data processing unit are directly connected to the communication bus, and the external device is connected to the data processing unit; the execution method is that the external device sends data to the data processing unit, and the data processing unit forms a data frame after processing and sends it to the OBCU, and the OBCU receives the data frame Carry out calculations, and send commands to the data processing unit according to the calculation results; the data processing unit converts the received commands into train signals and outputs them to the train; if there is a problem with a certain control component, the corresponding component should be replaced. This program only uses a communication bus. A large number of IO cables and communication cables between the two ends of the train are omitted, which saves costs and is more convenient for inspection and maintenance, and is more implementable.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a head-to-tail redundancy system of vehicle-mounted signal equipment and an execution method thereof. Background technique [0002] The main function of the vehicle-mounted ATP system is to monitor the train running speed and train movement authorization. The vehicle-mounted ATP monitors the train speed and movement authorization according to the ground speed limit information and movement authorization information. The train braking system brakes to stop. [0003] The vehicle-mounted ATP system must ensure the safe operation of the train and at the same time improve the availability of the vehicle-mounted equipment. At present, in order to improve the availability of equipment, most of the vehicle-mounted equipment adopts a single-ended redundancy mode. The usual vehicle-mounted ATP system adopts a single-ended 2 times 2 out of 2, or a single-end 3 out of 2 red...

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