| 摘要 |
<p>The present disclosure relates to an irrigation system comprising a surface wave launcher located predominantly underground and controlled by an electronic control system, and a surface wave receiver located underground and operatively coupled to an irrigation sprinkler. In operation, the surface wave launcher is activated by the electronic control system to, under predetermined conditions, transmit a surface wave signal. The surface wave signal is transmitted at a relatively low operating frequency and received by the surface wave receiver to activate the irrigation sprinkler.</p> |
