基于XML描述的动态可扩展数据报文的模型构建方法

Model Construction Method of Dynamic Extensible Data Packet Based on XML Description

摘要:

通过分析航空、通信、航天等领域综合电子项目中常规总线数据报文,以及动态可扩展数据报文,归纳出数据报文结构特点,研究了适应动态可扩展数据报文的描述模型,并给出基于XML语言对动态可扩展数据报文模型的实现方法。通过该方法解决了动态可扩展数据报文难以统一描述问题,可实现软件代码与接口定义的解耦；解决了因接口变更导致修改软件代码的问题,可提高软件代码的通用性和适应性。该方法设计的总线接口测试软件已在多个型号工程的中应用,可达到在不修改软件代码的情况下,配置多种类型的常规数据报文或动态可扩展数据报文进行数据总线通信。

Abstract:

By analyzing the conventional bus data message and dynamic scalable data message in integrated electronic projects in the fields of aviation, communication and aerospace, the structure characteristics of data message are summarized, the description model adapting to dynamic scalable data message is studied, and the implementer of dynamic scalable data message model based on XML language is given. Law. This method solves the problem that dynamic scalable data packets are difficult to describe uniformly, and decouples software code from interface definition. It solves the problem of modifying software code due to interface changes, and improves the universality and adaptability of software code. The bus interface test software designed by this method has been applied in many types of projects. It can be used to configure various types of conventional data messages or dynamic scalable data messages for data bus communication without modifying the software code.