In this paper, the communication technology of seismic precursor network instrument is introduced, including instruction format and returned information format of instrument login, status information acquisition, and ...In this paper, the communication technology of seismic precursor network instrument is introduced, including instruction format and returned information format of instrument login, status information acquisition, and current measured data acquisition. The remote monitoring alarm software is based on this technology, and also introduced that the structure of monitoring information table, abnormal alarm index, and monitoring strategy. The application of the software raises instrument running rate and observation data quality.展开更多
现有的有源电力滤波器(Active Power Filter,APF)存在数据存储量小、历史数据少、远程监控能力差等问题,因此,需要有效地技术手段来解决这些问题。在230 M无线数传电台组网的电力负荷管理系统基础上,提出在有源电力滤波器的控制系统中...现有的有源电力滤波器(Active Power Filter,APF)存在数据存储量小、历史数据少、远程监控能力差等问题,因此,需要有效地技术手段来解决这些问题。在230 M无线数传电台组网的电力负荷管理系统基础上,提出在有源电力滤波器的控制系统中增加无线调制解调模块,通过DSP实现数字化的前向纠错算法,构建了可靠的无线远程监控系统。在无线数传电台组网的基础上,有源电力滤波器配合上位机的电力能效测评系统软件,实现了电力能效监测、无人值守运行、远程实时监控、数据动态显示、故障报警和历史数据查询等功能。实验证明,该方法可以有效地解决无线通信中信噪干扰和信号衰落问题,具有很好的检错纠错能力和较高的数据传输效率,从而对有源电力滤波器进行有效地监控,提高了供电系统的安全性能和管理水平。展开更多
文摘In this paper, the communication technology of seismic precursor network instrument is introduced, including instruction format and returned information format of instrument login, status information acquisition, and current measured data acquisition. The remote monitoring alarm software is based on this technology, and also introduced that the structure of monitoring information table, abnormal alarm index, and monitoring strategy. The application of the software raises instrument running rate and observation data quality.
文摘现有的有源电力滤波器(Active Power Filter,APF)存在数据存储量小、历史数据少、远程监控能力差等问题,因此,需要有效地技术手段来解决这些问题。在230 M无线数传电台组网的电力负荷管理系统基础上,提出在有源电力滤波器的控制系统中增加无线调制解调模块,通过DSP实现数字化的前向纠错算法,构建了可靠的无线远程监控系统。在无线数传电台组网的基础上,有源电力滤波器配合上位机的电力能效测评系统软件,实现了电力能效监测、无人值守运行、远程实时监控、数据动态显示、故障报警和历史数据查询等功能。实验证明,该方法可以有效地解决无线通信中信噪干扰和信号衰落问题,具有很好的检错纠错能力和较高的数据传输效率,从而对有源电力滤波器进行有效地监控,提高了供电系统的安全性能和管理水平。