摘要
在分析比较已有的各种蓄电池电压测量方法的基础上,提出了在蓄电池监测仪器研发方面的两个关键技术:一是采用低价格、高精度、高共模抑制比的INA148差动放大器芯片,组成一种线性采样电路,并以ARM(STM32F103ZE)微处理器为核心,作为下位机负责采集N路蓄电池单节电压和温度等参数的巡检;二是选用RS485作为单片机与上位机实现远距离通信的串行接口,将定时采集的数据进行处理和向上位机传送,并通过"逻辑分析仪"为蓄电池的在线监测和故障快速诊断提供准确的技术参数.该技术已成功用于一种新型蓄电池组监测仪的研发,并在徐塘发电公司等企业得到了推广应用.
By analyzing different kinds of the reported voltage measuring methods for the battery voltage, two key technologies have been proposed for developing the battery online monitor equipment in this paper. Firstly, INA148 differential amplifier chip is suggested to make up the linear sampling circuit, which has such advantages as low cost, high precision and high common mode resistive ratio, and the ARM（STM32F103ZE） is employed as the lower level core microprocessor to make a tour collecting the voltage and temperature parameters of N lines single battery. Secondly, the RS484 is adopted as the serial communication interface to realize the long distance communication between single-chip microcomputers and host computer, by processing the collected data and transferring them to the host computer, and the logic analyzer is further utilized to offer the accurate technique parameters for online monitoring all batteries and fast diagnosing the failure ones. The above proposed two key techniques have been successfully applied in newly-developed battery online monitor equipment, which has been adopted by Xu-tang power plant, etc.
出处
《南京师范大学学报（工程技术版）》
CAS
2013年第3期14-18,共5页
Journal of Nanjing Normal University(Engineering and Technology Edition)
关键词
蓄电池组
在线监测仪
采样电路
串行通信
逻辑分析仪
serial storage batteries, online monitor equipment, sampling circuit, serial communication,logic analyzer
