2 results about "Train communication network" patented technology

The application provides a motor train city area braking software integrated test system, and relates to the motor train city area braking software test technical field.The system comprises: a plurality of electronic brake control unit cabinets to be tested, a plurality of sub-simulation nodes, a main simulation node and a test service node; the sub-simulation nodes are electrically connected with the corresponding electronic brake control unit cabinets respectively, are used for simulating the external input signals of the electronic brake control unit cabinets and collecting the output signals of the electronic brake control unit cabinets; the main simulation node is used for controlling the signal interaction between the sub-simulation nodes and the electronic brake control unit cabinets by managing the train communication network and simulating the train bus control instructions; the test service node is used for uniformly configuring, parameter issuing and scheduling controlling the main simulation node and the sub-simulation nodes, and analyzing the output signals to generate a test report.The application realizes software configuration instead of physical replacement, significantly shortens the test preparation time, improves the test stability and prolongs the hardware life.

This invention relates to a method, equipment, and medium for coordinated control of main circuit breakers in electric locomotive formations. The method includes: determining the master locomotive in the formation; determining the node sequence of each locomotive in the formation based on the master locomotive; collecting overhead contact line parameters in real time; dynamically calculating the closing time interval of the main circuit breakers of each slave locomotive based on the grid parameters and the node sequence; prioritizing the closing of the main circuit breaker of the master locomotive; after the master locomotive's main circuit breaker closes first, sending a closing start signal to all slave locomotives through the train communication network; and ensuring that each slave locomotive, upon receiving the closing start signal, closes its own main circuit breaker according to its node sequence, after delaying the closing time interval. By combining a multi-level, high-fault-tolerant automatic formation mode identification mechanism with a dynamically adaptive main circuit breaker coordinated control strategy, precise, safe, and efficient control of the high-voltage main circuit of electric locomotives with different formation configurations is achieved.