Low-delay simulation intelligent adaptation and long-line transmission device

Abstract

The invention provides a low-delay simulation intelligent adaptation and long-line transmission device. The low-delay simulation intelligent adaptation and long-line transmission device comprises a reflective memory card (1), a simulation equipment interface module (2) and an interface controller (3. The reflective memory cards (1) of multiple low-delay simulation intelligent adaptation and long-line transmission devices are all connected with a reflective memory switch to form a reflective memory network, and data information written into each reflective memory card (1) can be automatically transmitted into on-board memories of other reflective memory cards (1) in the reflective memory network. The simulation equipment interface module (2) is provided with an input / output channel and canperform data information interaction with a simulation tested object. According to the invention, the reflective memory network is used as a long-distance transmission medium, compared with the Ethernet, the CPU overhead is reduced, the transmission delay is determined, the hardware operation is convenient, the system is independent of the operating system, and the real-time data transmission between heterogeneous systems in different places can be realized. For serial port data transmission, a mode of transmitting while receiving is used, so that the transmission delay is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of real-time data communication, in particular to a low-delay simulation intelligent adaptation and long-line transmission device. Background technique [0002] With the complexity and diversification of interference in the air combat environment, and at the same time, the combat targets adopt formation coordinated operations and multi-directional saturation attack tactics, the single-piece method of air defense missile weapons and equipment can no longer adapt to the new combat mode. Multi-missile coordinated guidance / multi-body coordinated combat breaks the traditional combat thinking, and realizes mutual communication and information sharing between missiles through data links to achieve more efficient overall combat effectiveness. It is one of the protagonists in the future battlefield. [0003] Real-time simulation technology and its application provide full life-cycle support for the design, developmen...

AI Technical Summary

Problems solved by technology

However, multiple sets of simulation test systems have constraints such as heterogeneity, remote locations, and real-time constraints. A high-speed, low-latency, long-distance, and multi-signal transmission device is required to meet the requirements of the system-to-system, test object and test object Long-distance, real-time data interaction between the simulation system and the subject

[0005]The widely used transmission method is to collect the signal locally and transmit it to the remote end through Ethernet or optical fiber. The remote device needs to open an additional thread for real-time data monitoring and copying , Network protocol explanation, complex program design and high CPU overhead; in addition, Ethernet transmission adopts CSMA / CD collision detection protocol, the transmission delay is uncertain, and cannot meet the needs of real-time simulation

At the same time, the serial port data generally adopts the method of data packet receiving and then forwarding. Compared with the direct serial port communication between the subjects, it increases the time consumption of the transmission device to receive data. If the time-consuming is too long, it will affect the data interaction between the subjects. real-time

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