ACARS空地数据通信系统及报文解析

Air-ground Data Link Communication System based on ACARS and Message Parsing

航空安全是民航运输界的永恒课题,而飞行事故往往是由于发动机不能正常工作引起的,因此对发动机运行状态进行实时监控显得格外重要,而及时准确的信息来源是保障飞机状态监控可靠的前提。针对国内空地数据链通信应用现状,以数据链信息传输通信协议为依据,构建ACARS空地数据通信系统架构;着重研究基于VHF空地数据链传输的空-地段和地-地段标准ACARS报文基本结构,提出固定位置提取、模板解析和特征提取相结合的ACARS报文解析方法。研究结果为专业人员提高报文解析的准确性以及在国内广泛应用ACARS空地数据通信系统奠定坚实基础,对提高飞行安全具有重要意义。

Aviation safety is the eternal subject of civil aviation transport sector. It is particularly important that engines operating status are monitored because flight accidents by which engines are not working properly are often caused. Timely and accurate information source is the premise to guarantee the reliability of aircraft condition monitoring. The paper constructs the structure of air-ground data link communication system about ACARS on the basis of the research on communication protocol in view of the current application status of air-ground data link in the domestic. ACARS message structure is analyzed emphatically based on VHF air-ground data link transmission and the parsing method of the ACARS message is proposed by utilizing the method of fixed position extraction, template parsing and feature extraction combined. The results contribute to improve the message parsing accuracy for professionals and lay a solid foundation to promote the use of ACARS air-ground data communication system in domestic, which has a certain significance to improve aviation safety.