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The dynamic compensation in rural distribution network can not only reduce the active power loss of certain lines and improve power factor, but also ameliorate each nodal voltage level. However, the switching control of dynamic compensation capacitor always depends on the parameters of installation node, namely, local control. There is no uniform scheduling, lacking a full consideration to reactive...
The running status of Uninterruptable Power Supply (UPS) is very important factor for the safe running of devices in computer room or other application fields. In order to supervise the running status or performance of the UPS, a UPS online remote monitoring system based on general packet radio service (GPRS) network is proposed in this paper. The system could monitor the voltage, current and temperature...
The article introduced a remote wireless monitoring system for the off-grid wind turbine. Considering the characteristics of the off-grid wind turbine, the system will have primarily function-monitoring, counting and saving the operation data. And, the design adopts primarily the remote communication technique to finish communication between control terminal and monitoring center. It can master the...
In the research, it present a wireless communication method for water factory environment monitor system. It sends and receives wireless data by GPRS, and processes the data in sockets software, which setup both in server and client computers. In the research, it designs the remote terminal, the wireless TCP/IP protocol, SMS (short message serve), and C/S (Client/Source) model. Also a VC++ program...
In a residential district, building centralized controllers are used to check the power consumed in each building, and store the data into data memory. Building centralized controller could communicate with filed data collector using CAN bus, as well as with upper computer by GPRS. Considering the data memory and reliability, FM1808 ferroelectric memory is adopted. To enhance the anti-interference...
In the competitive electricity structure, the data exchange between supplier and customers becomes more important for efficient and secure operation of power systems. Automated meter reading (AMR) technology has played a role in helping Utilities overcome their meter reading challenges. However, it is not enough in today's environment. Utilities need an advanced metering infrastructure (AMI) to gather...
The SMS receiving and dispatching system is designed in this paper, which consisting of embedded Linux system and GPRS module. The principle of work and frame of system are given. How to encode the message in PDU mode, decode the message from PDU and the SMS receive/send flow under the control of AT commands, is the technical difficulty in SMS terminal developing. based on the embedded Linux system,...
A long-distance monitoring system on galloping of conductor of transmission line is researched, which is to obtain data of galloping of conductor. The construction, technical features, software function and experiment results of this system are introduced. The whole system is from monitoring unit, GPRS, Internet network, supervision center to constitute. The system can monitor galloping of conductor...
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