Real-time simulation communication system and method

Abstract

The invention provides a real-time simulation communication system and method. The real-time of real-time simulation capability and data interaction can be enhanced by the implementing of distributedsimulation based on a reflective memory network. The system includes a simulation main control computer, simulation servers and general interface simulators, wherein the simulation main control computer controls the testing of the distributed simulation and the operation status of simulation; the simulation servers operate different equipment simulation models; one end of each general interface simulator is connected to to-be-detected equipment, and the data interaction of the other end of each general interface simulator and the simulation servers and the to-be-detected equipment can be realized through reflective memory cards; and the reflective memory cards are installed on the simulation main control computer, the simulation servers and the general interface simulators, the connectionof the reflective memory cards can be achieved by optical fibers, and therefore, the star shaped reflective memory network can be formed. According to the technical scheme, the transmission efficiencyof real-time communication data can be enhanced, the delay and unpredictability of data transmission can be reduced, communication protocols are simplified so that the communication efficiency can beenhanced, transmission distances are increased so that the transmission speed can be enhanced, and at the same time, programming can be simplified, and the difficulty of development can be reduced.

Description

technical field [0001] The invention belongs to the field of comprehensive testing of spacecraft, and relates to a communication protocol for real-time simulation testing of spacecraft, which is used in a semi-physical simulation testing system of spacecraft, and more specifically, relates to a real-time simulation communication system and method, which are used for execution based on reflective memory network Distributed simulation to improve real-time simulation capabilities and real-time data interaction. Background technique [0002] With the development of spacecraft design concepts, the spacecraft test mode is also changing. Due to the limitation of the test environment, the peripheral environmental conditions and equipment related to the object under test often cannot meet the working requirements of the object under test. Therefore, the semi-physical simulation test Technology has been applied more and more in the field of spacecraft testing. The semi-physical simula...

AI Technical Summary

Problems solved by technology

[0005] 1) The real-time performance of Ethernet is poor, and its real-time performance is restricted by the network environment. When the network load is heavy, the data transmission delay on the network is relatively large and the delay is unpredictable;

[0006] 2) Network communication must be completed with the help of many network protocols, which reduces communication efficiency;

[0007] 3) CAN, 1553B and other buses have short communication distances and slow speeds. When the maximum transmission rate of CAN bus is 1Mbps, the communication distance is below 40m. When the maximum transmission rate of 1553B is 1Mbps, the maximum transmission distance is 100m. increase, the transmission rate decreases;

[0008] 4) The communication protocol programming implementation is relatively complicated, the development and joint debugging cycle is long, and it is not easy to use

Images