Online Maintenance and Management of UPS and DC Power Supplies
1. Main control station (backend). Composed of monitoring stations, engineering maintenance stations, system interfaces, etc., the received data is processed using management analysis software and published through the web. Engineering maintenance personnel can log in to the server to view the operating status of all online devices in the entire factory, as well as complete historical and real-time data analysis and statistics.
2. On site equipment control station (ES). According to the needs of on-site equipment, a monitoring function meter or an equipment operation status information color analyzer (EII) can be selected. EII communicates with smart devices such as energy meters, battery acquisition modules, DC screens, UPS, etc. through RS-232/485 ports, converts monitoring data into data packets that comply with communication protocols, connects to the local area network, and transmits them to the main control room server. The independent and complete ES includes the following parts.
(1) System host. It consists of a downstream serial port channel, a data processor, a display, and an upstream serial port channel. The downstream serial port channel accesses the battery voltage acquisition module through the RS-485 bus, collects data, manages the voltage acquisition module, and the data processor completes data decompression, data calculation, storage management. Part of the processed data is sent to the display, and the other part is sent to the protocol processor or transmitted to the upper layer management system through the upstream serial port channel.
(2) Data collection module group. The data collection requirements and corresponding acquisition instruments can be determined according to user needs, generally consisting of battery voltage acquisition modules, current, temperature, power, etc. The modules have good isolation, strong insulation, high reliability, and performance. Data collection can be grouped, and each module can collect voltage from a certain number of batteries. It can be equipped with current and temperature sensors, and the modules are generally connected to the system host using RS-485.
(3) Protocol processor. An interface board with a protocol processing program that handles various communication protocols. Can achieve: ① Encode, package, and send the battery voltage, current, temperature, and other information sent by the host to a remote server according to the agreed protocol; ② Decode the remote control and remote adjustment instructions sent by the remote server and send them to the host for real-time control.
(4) Discharge module. It can quickly measure the DC internal resistance of the battery, instantly test the battery performance, and the high-power discharge module can provide instantaneous high current impact load.
(5) Remote server. Realize computer data communication within the local area network, remotely access the on-site battery monitoring system through the local post, receive and analyze data, and publish data through a web server.
