基于STM32的车载配电系统的设计与实现  

Design and Implementation of Vehicle Power Distribution System Based on STM32

作　　者：许广文 XU Guangwen

机构地区：[1]河北省计量监督检测研究院

出　　处：《计量与测试技术》2025年第3期52-55,共4页Metrology & Measurement Technique

摘　　要：为可靠、有效地对车载用电设备进行监控和保护,需对其相关电参数进行快速准确测量。本文使用STM32定时器触发内部A/D,并在交流电的一个周期内等间隔采样,采用均方根算法处理数据。同时,为补偿电路中器件非线性和关键器件参数不一致引入的测量误差,对交流输入值和A/D测量数据进行标定,并通过曲线拟合得到输入输出曲线和对应函数关系。In order to monitor and protect the vehicle electrical equipment reliably and effectively,it is necessary to measure the relevant electrical parameters quickly and accurately.In this paper,STM32 timer is used to trigger internal A/D,and samples are taken at equal intervals in one cycle of AC,and root-mean-square algorithm is used to process the data.At the same time,in order to compensate the measurement errors introduced by the nonlinearity of the device and the inconsistency of the key device parameters in the circuit,the AC input value and the A/D measurement data are calibrated,and the input and output curves and corresponding function relationships are obtained by curve fitting.

关 键 词：交流测量 均方根算法 等间隔采样 曲线拟合 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]