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用于局部土壤区域灌溉的两线控制与监测系统
Two-wire controlling and monitoring system for the irrigation of localized areas of soil
US-7421317-B2用于通过两线电缆控制和监测局部区域灌溉。
专利摘要
一种用于局部土壤区域灌溉的控制与监测系统，包括水管线、多个可控灌溉阀、多个测量特定灌溉参数的现场传感器以及多个局部灌溉控制单元。每个控制单元具有连接到特定一个现场传感器的传感器解码器和连接到特定一个灌溉阀的线路解码器。系统还包括控制器和电源单元，其向互连控制器和电源单元与控制单元的两线电缆施加第一交替直流电压信号。电缆从控制器和电源单元向每个控制单元提供电力。控制器和电源单元通过电缆向控制单元传输指令计划，并从控制单元接收灌溉参数。
Original abstractA controlling and monitoring system for irrigation of localized areas of soil includes a water pipeline, a plurality of controllable irrigation valves, a plurality of field sensors measuring specific irrigation parameters, and a plurality of localized irrigation control units. Each of the control units has a sensor decoder connected to a specific one of the field sensors and a line decoder connected to a specific one of the irrigation valves. The system further includes a controller and power supply unit that applies a first alternating DC voltage signal to a two-wire cable interconnecting the controller and power supply unit and the control units. The cable provides power from the controller and power supply unit to each of the control units. The controller and power supply unit transmits schedules of instructions to the control units, and receives the irrigation parameters from the control units, through the cable.
专利附图（8）
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