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公开(公告)号：US20200045897A1
公开(公告)日：2020-02-13
申请号：US16057331
申请日：2018-08-07
摘要： System and method for controlling an irrigation system using feedback from flow meters installed in an irrigation system are described. The systems and method allows for automatic detection of the number of flow meters and their relation to controls valves attached to an irrigation system and for precise and reliable fluid flow measurements. Typical water flows for the system are learned and then compared to current water flows to detect water leaks (i.e., high water flow), malfunctioning control valves and/or low water flow and subsequently trigger electronic alerts to the user when system malfunctions are detected.
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公开(公告)号：USD443539S1
公开(公告)日：2001-06-12
申请号：US29106033
申请日：1999-06-07
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公开(公告)号：US20190286172A1
公开(公告)日：2019-09-19
申请号：US15925457
申请日：2018-03-19
摘要： A circuit that can be used to add a flow meter to an existing set of wires that connects a controller to an electric valve. The circuit does not require the need to run additional wiring from the controller to the valve and flow meter. The circuit creates pulses of current with a rate that is proportional to the flow, which are then transmitted to a receiver and converted to a flow measurement output to the user by a controller.
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公开(公告)号：USD447713S1
公开(公告)日：2001-09-11
申请号：US29106032
申请日：1999-06-07
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