系统通过压力传感器、PLC、变频器等设备完成供水系统自动恒压控制。
Automatic constant pressure control of system has completed by press-sensor, PLC, frequency converter etc.
在恒压供水系统中，泵组的控制属于较大范围的自适应系统，泵组的平衡运行是自动调整系统运行参数的关键。
Control of pumps unit belongs to large-range self-adaptive system and it is the key for equipoise operation to operate parameter in auto-regular system.
详细论述了系统硬件结构和控制方法，实现了对供水的恒压自动控制，提高了供水质量。
The structure of system hardwares and control way are described in the paper. It realizes the automatic control of stable water supply and improves the quality of water supply.
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