基于共参考点冗余的航空总线容错接收方法研究  

Research of Fault—tolerant Receiving Method of Avionic Bus Based on Identical Reference Point

作　　者：周德新[1] 李宏[1] 彭妮娜[1] 张婧瑜[1] 

机构地区：[1]中国民航大学航空自动化学院,天津300300

出　　处：《计算机测量与控制》2014年第3期830-832,844,共4页Computer Measurement &Control

基　　金：国家自然科学基金项目(61179044);中国民航大学校级重点项目(CAUC2009ZD0102)

摘　　要：通过对航空总线数据收发方式的研究,提出了一种新型冗余模式,并以ARINC429总线为例,具体设计并实现了这种方法;该方法通过供参考点的方法,引入了硬件冗余,采用模糊算法作为恢复算法,推理出正确的信息,并结合校验位进行纠错;为避免单粒子效应,采用分层三模冗余的方式实现了这种接收方法;基于FPGA实现了这种方法,对受到干扰时ARINC429信号的接收,并用进行了仿真验证;验证结果说明,这种方法不仅能识别出因受干扰而产生的错误数据,还能对大部分错误数据进行纠错,具有极强的抗干扰能力。A new type of redundancy mode is put forward based on the research of the aviation data bus transceiver way. This method is designed and implemented by an example of ARINC429 bus. Firstly, hardware redundancy are generated by Identical Reference Point. Sec- ondly, the correct information is reasoning out using fuzzy algorithm. Thirdly, the information is corrected by parity bit. Lastly, the re- ceive method is implemented by partitioned triple modular redundancy to avoid single--event upsets. This method is implemented based on FPGA. The ARINC429 signal with interference is received by this method. It is right by simulation. The result of simulation illustrate that this method not only can identify the error due to disturbance data, but also can carry on the correction for most wrong data, which is with strong anti--interference ability.

关 键 词：容错 模糊算法 三模冗余 FPGA 

分 类 号：TN98[电子电信—信息与通信工程]