基于嵌入式Linux的电参数测量系统设计

为了解决传统电参数仪智能化程度低、量程窄等问题,应用Linux操作系统、同步化等技术设计了一套电参数测量系统。该系统可对用电设备的电压、电流和功率等参数进行准确测量。在硬件设计上,采用MAX1324对电压和3路电流进行采样,提出了一种简便的组合测量电路以分别测量小电流和大电流。该系统通过对3路采样电流进行判断,以控制继电器来确定电流采样电路。采用了同步化算法,对非同步采样数据进行了修正,从而有效减小了计算误差。实际应用结果表明,该系统具有智能化程度高、使用方便和易于维护等优点。

Design of electrical parameter measuring system based on embedded Linux operating system

In order to solve the problems of low Intelligent and narrow range of the traditional electrical parameter instrument,a system based on synchronization algorithms and linux OS was designed for measuring electrical parameters such as voltage, current, power, etc.. A new measurement circuit which was used to measure the little current and the high current respectively was proposed ;MAX1324 was used for sampling of voltage and three-way current. It was easy to control the relay to determine the sample circuit with judging the three-way current. The system used the synchronization algorithm to revise the original data,which effectively reduced the calculation error. The results show theat the system ha-a practical high practical application value with its high intelligent,convenient operation and easy maintenance.