Abstract
As a high-speed and reliable serial communication bus, the FlexRay bus has gradually become the mainstream of vehicle network systems. In order to verify the feasibility of the bus technology in aerospace applications, this paper designs a FlexRay communication node based on TI's high-performance microcontroller TMS570LS3137 for security systems. In the whole system, with the DSP of core, the FlexRay communication protocol is achieved by using the bus controller TJA1080 to carry out data transmission. This method is suitable for data transmission of pint and medium-sized UAV (unmanned air vehicles) flight control system with high integration and high transmission rate.
Highlights
Aviation bus [1,2] is one of the basic and key technologies of avionics system
With the development of airborne avionics technology, higher requirements are proposed for the airborne data bus
The data bus is widely used on modern flight control computers to realize data exchange and sharing among its various subsystems
Summary
Aviation bus [1,2] is one of the basic and key technologies of avionics system. With the development of airborne avionics technology, higher requirements are proposed for the airborne data bus. Expansibility and flexibility of the airborne electronic system, the bus performance indirectly determines the flight performance and flight safety of UAV (unmanned air vehicles). With the rapid development of new type UAV, the CAN bus cannot meet the index requirements of increasingly complex system, due to its limitations of communication rate and communication mechanism. It is necessary to find a new bus technology with high data transmission rate and high security to meet the large-capacity and real-time communication requirements of new type UAV flight control system. This paper designs a communication node for pint and medium-sized UAV flight control system, which based on the technology of FlexRay bus
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