公开(公告)号：US5333785A

公开(公告)日：1994-08-02

申请号：US992914

申请日：1992-12-18

申请人： Graeme C. Dodds ,  Peter G. McNeil

发明人： Graeme C. Dodds ,  Peter G. McNeil

IPC分类号： A01G25/16 ,  G05B19/042 ,  B05B12/04

CPC分类号： G05B19/0423 ,  A01G25/16 ,  G05B2219/21047 ,  G05B2219/25187 ,  G05B2219/2625 ,  Y02B70/3241 ,  Y04S20/227 ,  Y10S239/15

摘要： An irrigation system for controlling a number of control valves (104) is disclosed. The valves (104) control the flow of water in a corresponding branch pipe (102) leading from a common supply pipe (101). The system uses wireless transmission of control signals to operate a control unit (115) which operates the corresponding control valve (104) from a corresponding power generator (107). The control signal is encoded by an encoder (118) according to predetermined conditions and is decoded by each of the control units (115), the coded signal being received by each control unit (115) and the specified control unit (115) operating only.

摘要翻译： 公开了一种用于控制多个控制阀（104）的灌溉系统。 阀（104）控制从公共供应管（101）引出的相应分支管（102）中的水流。 该系统使用控制信号的无线传输来操作控制单元（115），该控制单元（115）从相应的发电机（107）操作相应的控制阀（104）。 控制信号根据预定条件由编码器（118）编码，并被每个控制单元（115）解码，编码信号由每个控制单元（115）和指定的控制单元（115）接收，仅操作 。

公开(公告)号：US5048755A

公开(公告)日：1991-09-17

申请号：US509550

申请日：1990-04-16

申请人： Graeme C. Dodds

发明人： Graeme C. Dodds

IPC分类号： A01G25/16 ,  G05B19/042

CPC分类号： G05B19/042 ,  A01G25/16 ,  Y10S239/15 ,  Y10T137/1866

摘要： An irrigation system for controlling the operation of a number of control valves each of which controls the flow of water in a corresponding branch pipe leading from a common supply pipe. The system comprises a pair of control lines which extend along the supply pipe and branch pipes to carry a control signal to operate a control unit which operates a corresponding control valve using a low voltage power supply. The control signal is coded by a data generator according to predetermined conditions and is decoded by each of the control units, the coded signal being received at each control unit, and the specified control unit operating only.

摘要翻译： 一种用于控制多个控制阀的操作的灌溉系统，每个控制阀控制从共同供应管道引出的相应支管中的水流。 该系统包括一对控制线，其沿着供应管和分支管延伸以承载控制信号以操作控制单元，该控制单元使用低压电源操作相应的控制阀。 控制信号由数据发生器根据预定条件进行编码，并由每个控制单元解码，编码信号在每个控制单元处接收，并且指定的控制单元仅工作。