电子学报2018，Vol.46Issue(2)：393-400,8.DOI:10.3969/j.issn.0372-2112.2018.02.019
基于统计分析的多协议单片机数据通信系统EFT抗扰度研究
Research on EFT Immunity of MCU Data Communication System with Multi-protocol Based on Statistical Analysis
摘要
Abstract
The electronic system or equipment can be easily disturbed by Electrical Fast Transient(EFT) induced by coupling between power lines and communication lines.EFT immunity of data communication is directly influenced by com-munication protocol.Hence,a MCU data communication system which contains four kinds of data communication protocol including I2C,USART,SPI and RS232 was designed for EFT immunity test by means of cable coupling.The test data was analyzed by mathematical statistics method for obtaining the EFT immunity of MCU data communication system under dif-ferent communication protocols. The optimal Gamma model is used for researching distribution law of EFT interference threshold voltage of MCU data communication system under different communication protocols,which was selected by chi-square goodness of fit test and Hannan Quinn information criterion through hypothetical models.The model parameters were estimated by maximum likelihood method based on test data.For MCU communication protocols,EFT immunity from low to high is in the order of I2C,USART,SPI,RS232 under the same baud rate.关键词
单片机数据通信系统/线缆耦合/EFT抗扰度分析/最大似然估计/汉南-奎因信息准则/数据通信协议比较Key words
MCU data communication system/cable coupling/EFT immunity analysis/maximum likelihood estima-tion/Hannan Quinn information criterion/comparison of data communication protocol分类
数理科学引用本文复制引用
钟志明,谭坚文,叶方伟,刘阳,曾德平,吴明达..基于统计分析的多协议单片机数据通信系统EFT抗扰度研究[J].电子学报,2018,46(2):393-400,8.基金项目
国家自然科学基金(No.81501615) （No.81501615）
国家重大科学仪器设备研制专项(No.81127901) （No.81127901）
