航空学报 > 2019, Vol. 40 Issue (4): 622283-622283   doi: 10.7527/S1000-6893.2018.22283

舰载机气动强度与着舰安全性关键技术专栏

舰载机飞行控制系统总线接口策略

杨绚, 魏小勇, 崔德龙   

  1. 航空工业第一飞机设计研究院, 西安 710089
  • 收稿日期:2018-05-07 修回日期:2018-05-30 出版日期:2019-04-15 发布日期:2018-07-09
  • 通讯作者: 杨绚 E-mail:576219384@qq.com
  • 基金资助:
    陕西省青年科技新星计划(2016KJXX-74)

Bus interface strategy in flight control system for carrier-based aircraft

YANG Xuan, WEI Xiaoyong, CUI Delong   

  1. AVIC The First Aircraft Institute, Xi'an 710089, China
  • Received:2018-05-07 Revised:2018-05-30 Online:2019-04-15 Published:2018-07-09
  • Supported by:
    Youth Science-Technology New Star Program of Shaanxi Province (2016KJXX-74)

摘要: 对于舰载机集中式架构的飞控系统,由于外部设备、串行通信设备、ARINC659总线、处理软件等的运行频率各有差异,导致数据写入总线接口模块端(BIM)和控制与管理模块端(CPM)读取数据的速率不完全匹配,造成数据包丢失或数据包重复解析,数据传输可靠性得不到保证。对不同因素导致的读/写冲突问题进行详细的分析,分别针对数据包接收不完整和重复解析的问题给出相应的解决方案,设计了一种数据包格式并且提出数据缓冲方案。经试验验证,该方案能够保证数据包的完整性且避免了对数据包的重复解析,提升了软件的可靠性和运行效率。

关键词: 舰载机, 飞控系统, 总线接口, ARINC659总线, 数据传输, 数据包, 时钟偏差

Abstract: In the centralized flight control system for carrier aircraft, the differences of operating frequency among the external equipment, the serial communication equipment, the ARINC659 bus and the processing software lead to the mismatch of the rate between writing data to Bus Interface Modular (BIM) and reading data from Control and Program Modular (CPM), resulting in the missing of and the repeated analysis of the data packet. The reliable data transmission can not be guaranteed. By analyzing the reasons of conflicts in reading and writing in details, corresponding solutions are given to problems of incomplete data packet reception and repeated analysis, a new data packet format is designed and a data transmission scheme is proposed. The experiments prove that the scheme can guarantee the data-integrity and avoid repeated analysis of the data packets, improving the reliability and efficiency of the software.

Key words: carrier-based aircraft, flight control system, bus interface, ARINC659 bus, data transmission, data packet, clock jitter

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