Integrated 1394B bus network simulation equipment

Abstract

The invention belongs to the field of aircraft avionics. According to integrated 1394B bus network simulation equipment, bus analog signal data is sent to a simulator lower computer 2 through test cases or manually; a simulation test result analyzed by the simulator lower computer 2 is received and compared with an expected value, and a test conclusion is obtained; the simulator lower computer 2 receives the bus analog signal data, bus node configuration information corresponding to the data is found in a local message configuration table, driving signals are packaged to be in a designated data packet format according to the bus node configuration information, and simulation cards are driven to send the packaged data to VMCs; and simulation test results returned by the VMCs are received, adriving layer is called to analyze the needed simulation test results according to the local message configuration table, and then the analyzed simulation test results are transmitted to a simulatorupper computer 1. Through the equipment, a test room can complete design verification, fault simulation and troubleshooting by use of the simulation environment.

Description

technical field [0001] The invention belongs to the field of aircraft avionics. Background technique [0002] In order to verify the system design in the laboratory before installation and find design defects in advance, it is necessary to simulate the working environment of the aircraft in the laboratory. The simulation verification of the bus network is a very important part of it, and the electromechanical laboratory has a simulation requirement for multiple sets of bus networks. [0003] To simulate the airborne 1394 bus network, the current method is to use a domestic general-purpose bus simulation card, which has 3 physical nodes, and each physical node can only simulate one bus topology node. If 40 computers are needed to simulate a full-machine bus network, each computer simulates a bus device, and each emulator is equipped with special simulation software, 40 sets of supporting software are required, which is expensive. However, the electromechanical system requir...

AI Technical Summary

Problems solved by technology

If simulating a full-machine bus network requires 40 computers, each computer simulates a bus device, and each emulator is equipped with special simulation software, 40 sets of supporting software are required, which is expensive

However, the electromechanical system also needs multiple sets of bus simulation equipment. Due to the limitation of the test environment and development cost, this kind of solution is almost impossible to implement.

Images