Research On Evaluation Of Embedded Software Reliability Of Smart Meters

State Grid is promoting the construction of electric information collection system,and smart meters is the most basic and important part of electric acquisition system.The quality of smart meters relates to the power supply security and reliability of residents,which directly affects the stability,safety and economy of electric acquisition system.At present,China Electric Power Research Institute has carried out on the embedded software reliability of smart meters test project,has obtained some test data,but the way how to evaluate the reliability of embedded software for test data on smart meters is still waiting to be solved.In this paper,the embedded software reliability of smart meters is studied and an evaluation model is proposed.The evaluation system was validated by a combination of comprehensive evaluation methods,and a software system was developed based on the above.The specific work of this paper is as follows:Firstly,the composition of smart meters is deeply studied,and the different modules of smart meters embedded software are divided so that the function and characteristics of different modules are studied deeply.The software reliability model is researched in detail,and the intelligent power is covered according to the embedded software unit module test operation;in-depth study of comprehensive evaluation method,according to the characteristics of smart meters in this study,select the appropriate evaluation method to evaluate it.Secondly,on the basis of the above,an evaluation system of embedded software reliability of smart meters is proposed,the indicators on first grade and second grade are screened out,the characteristics and selection of the different indexes are described,and the weights of indicators in evaluation system are calculated.Thirdly,based on Analytic Hierarchy Process and Fuzzy Comprehensive Evaluation,evaluate this mixed qualitative and quantitative problem and remove blurring by using BP artificial neural network algorithm to improve the objectivity of evaluation results.At last,design and develop a website based on this evaluation model.The appropriate data structure is designed to save and read data in the evaluation process,and the low coupling server interface and the front interactive page are designed to realize online evaluation.