Main control unit of electric locomotive based on QNX (Quick Unix)

Abstract

The invention discloses a main control unit of an electric locomotive based on a QNX (Quick Unix). The electric locomotive comprises the main control unit and a slave control unit which have the same software and hardware configuration, constitute a hot standby redundancy system and communicate with each other through full duplex RS485, wherein the hardware structure of the main control unit comprises a power board card, an MCPB (Main CPU (Central Processing Unit) board) card, a CAN (Controller Area Network) communication board card, an HDLC (High-level Data Link Control) communication board card, an ETHN (Ethernet) board card, a digital input board card, a digital output board card and an analog board card; according to the specific requirements of a novel electric locomotive, acquisition and processing of state information of the locomotive and storage of key data of the locomotive are realized, and each device of the locomotive is controlled to run harmonically and normally. Various functions of the novel electric locomotive can be met, the integration degree is high, the size is small, the cost is reasonably reduced, the universality is strong, and the locomotive is easy to maintain, strong in instantaneity and high in reliability.

Description

Technical field [0001] The invention relates to the field of electric locomotive control systems, in particular to a QNX-based electric locomotive main control unit. Background technique [0002] During the running of the locomotive, it is required to reliably transmit data between the main control unit of the locomotive and the other units of the locomotive, and after analyzing and calculating these data, it will be displayed in the driver display unit in time, and the final result command will be sent to each locomotive Corresponding equipment, and then control the operation of the entire locomotive. The working principle of the main control unit of the electric locomotive: The main control unit collects, stores and transmits the overall status information of the electric locomotive and the status information of each controlled device, receives all input commands through the man-machine interface, collects various feedback signals, and performs correlation Calculate, generate ...

AI Technical Summary

Problems solved by technology

The main control unit of the existing electric locomotive also needs an external control remote input and output unit, which are two types of equipment, resulting in a large volume of the main control unit and increased cost

The main control unit of the existing electric locomotive is implemented based on the Linux system. Its logic programming is more convenient for the personnel who realize the function, but its real-time performance cannot meet the requirements of the new electric locomotive, and the system consumes a lot of resources

It is also based on the WindowXPE system, which has high requirements on hardware, and the compiled program can only run in the DOS environment, so it has certain limitations.

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