数据模型在环境模拟试验测控系统的应用

Application of Data Model in Measurement and Control System of Environmental Simulation Test

为了解决环境模拟试验内容多样化给测控软件通用性带来的问题,通过引入数据模型的概念,参考环境模拟试验测控系统的本身性质和内容,对测控系统的元素进行分析,建立初步的概念模型,并在此基础上进一步建立关系数据模型。最终将设计好的模型以数据库的形式存储为程序的配置文件,使用户能够通过更改数据库来实现程序针对不同试验配置的更改,从而提升程序的通用性以及后期维护性。以环控引气双发动态模拟试验台测控系统为例,使用数据模型进行数据库的建立并调用,并直观地显示了数据模型的内容,证明了数据模型可以缩短试验准备的时间,极大地增强了测控软件的性能。目前依托此数据模型开发出的模拟试验测控系统已经在若干研究所投入使用。

In order to solve the generality problems of the measure and control system caused by the diversity of the environment simulation test, this article introduces the concept of data model. Referring to property and content of the environment simulation test, the paper analyses the elements of the measure and control system and builds a conceptual model based on the analysis. Then on this basis, the relational data model is further established. Finally, the designed model is stored as the configuration file of the program in the form of a database, which can make system achieve the different test configurations by changing database, which can enhance the versatility and the later maintenance of the program. This paper takes “the environmental control and twin-engine bleed air dynamic simulation test system” as an example, uses the data model for database creation and invokes the database to display the content of the data model intuitively, which proves that the data model can shorten the time of test preparation and greatly enhance the performance of measurement and control software. At present, the simulation test control system based on this data model has been put into use in several research institutes.