KEYWORDS: Design and modelling, Control software, Data acquisition, Operating systems, Data communications, Software development, Data conversion, Control systems, Computer architecture, Vehicle control
For different application scenarios, aerospace vehicle control systems may use different flight control hardware platforms, flight control strategies, and control functions, and the variability in adoption may lead to difficulties in the development and transplantation of software for general purpose. In this paper, we propose a new idea to adopt modular design to decompose the vehicle control software functions into sensor data unpacking, navigation calculation, attitude control calculation, data fusion, control output, hardware driver, thread scheduling and other modules, modular packaging design or each function, and hierarchical design for the overall architecture to achieve the minimum modification to meet the development needs of different application scenarios. The overall architecture is designed in a hierarchical way to meet the development needs of different applications with minimal modifications and good scalability.
KEYWORDS: Computer architecture, Data acquisition, Parallel computing, Vehicle control, Data communications, Satellite navigation systems, Pattern recognition, Data modeling, Control systems, Information operations
The control software running on the traditional single-core processor cannot meet the requirements of multi-task parallel computing and high real-time performance. An aircraft control software architecture design based on heterogeneous multi-core processor is proposed in this paper. The control software functions are divided into multiple tasks, which are decoupled and distributed on different CPU (Central Processing Unit) to achieve parallel computing and meet requirements of high performance in complex tasks. In this paper, Asymmetric multi-processing (AMP) is taken as an example, and inter-core communication mode based on shared memory is adopted to complete the design of aircraft control software architecture.
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