Acquisition of Voltage and Current Signals using A Single Board Computer for Online Monitoring of Powers

9th Annual Basic Science International Conference 2019

自然科学（总论）

Dharmawan, Hari Arief^1 ; Wardoyo, Arinto Yudi P.^1 ; Widodo, Chomsin S.^1

Department of Physics, Brawijaya University, Malang, Indonesia^1

关键词: Acquisition process;    Client/server application;    Developed applications;    Digital multimeters;    Monitoring and control;    Monitoring system;    Single board computers;    Timing information;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/546/3/032006/pdf
DOI  :  10.1088/1757-899X/546/3/032006

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

During this time, Single Board Computers (SBCs) are widely used in monitoring and control applications. Many relatively low-cost SBCs are available. This paper explains the implementation of an SBC LattePanda for online monitoring of powers through Local Area Networks (LANs). The SBC was used as the main part of the monitoring system that mainly performed acquisition of voltage and current signals sent by some sensors. A program for the microcontroller on the SBC was written for the acquisition processes. Furthermore, a client/server application was developed using Delphi to perform online monitoring of the signals. Some experimentation was performed to mainly ensure that the microcontroller could capture the voltage and current signals with precise and constant sampling timing as well as send the data to the client/server application successfully. A PicoScope was utilized during the experimentation to gain the timing information performed by the microcontroller. For calibration of the voltage and current, a 4.5-digit digital multimeter was implemented. The final stage of the experimentation revealed that the intended signals could be sampled with a constant timing and in this case 128 samples per channel was chosen. The developed application could also show the expected parameters including the signal of powers using an additional remote computers connected to the LAN.