基于Android的综合航电数据监控平台的研制

Development of Comprehensive Avionics Data Monitoring Platform Based on Android

分析了通航领域中综合航电系统数据传输的现状,讨论了针对航电系统数据传输进行地面在线监控的必要性;并根据航电系统的工作原理和数据监控的研发流程,研制了一款基于嵌入式操作系统的数据监控平台;监控平台硬件部分在Arm处理器基础上,设计并实现了数据采集、处理和电源管理等一系列功能模块;平台软件的开发基于嵌入式Android系统,在该系统环境下设计了监控平台软件构架;并开发了测试资源的底层驱动层、硬件抽象层(HAL)、本地调用层(JNI)和应用程序;通过多部被测航电系统进行验证,该监控平台运行稳定,系统误差可忽略,满足了航电系统数据监控的实际需求;从工程应用结果表明,该综合航电系统数据监控平台已通过民航局地面测试项目认证,并应用于实际生产中。

The paper analyzes the current situation of data transmission of the integrated avionic system in the field of general aviation and discusses the necessity to conduct ground on-line monitoring of data transmission of the integrated avionic system.Besides,the paper devel-ops a data monitoring platform based on the embedded operating system according to the working principle of the avionic system and the R＆amp;D procedures of data monitoring.The hardware part of the monitoring platform is mounted on the ARM microprocessor,which realizes a series of functional modules like data collection,data processing,power management etc.The platform software is developed based on the embed-ded Android system,under the environment of which the software architecture of this monitoring platform is designed.Moreover,the paper has also developed the bottom driver layer,hardware abstraction layer （HAL）,java native interface （JNI）and application programs of the test resources.Verified by several tested avionic systems,this monitoring platform runs stably and the systemic errors can be ignored,which satisfies the practical needs of data monitoring of the avionic system.As indicated by the engineering application results,this data monitoring platform for integrated avionic system has passed the ground test project certification of the Civil Aviation Administration and has been ap-plied in practical production.