Method and system for irrigation control

A wireless system for monitoring environmental, soil, or climate conditions and controlling irrigation control systems at a plurality of agricultural or landscape sites, comprising:

• a wireless sensor network, at each of the plurality of sites, the wireless sensor network comprising a plurality of nodes for performing at least one of monitoring environmental, soil, or climate conditions and controlling one or more irrigation control systems at the site;
• and
• a server computer system located remotely from the plurality of sites, said server computer system coupled to each wireless sensor network over a communications network for receiving data from and controlling operation of the nodes, said server computer system also selectively coupled to a plurality of devices each operated by one of a plurality of end-users over a communications network for transmitting the data to and receiving remote control commands or queries from the plurality of end-users;
• wherein the data transmitted to a given end-user corresponds to the site for which the given end-user has authorization;
• at least one gateway, at a location of each of the plurality of sites, for transferring the data between the plurality of nodes and the server computer system;
• wherein the server computer system transfers an irrigation schedule to at least one node of each of the plurality of sites for storage at and execution by the at least one node of each of the plurality of sites;
• wherein at least one of the plurality of nodes at each of the plurality of sites is coupled to a sensor, the sensor configured to take measurements of environmental, soil, or climate parameters;
• wherein at least one of the plurality of nodes at each of the plurality of sites is configured to compare the measurements against at least one user-entered control condition, and control the one or more irrigation control systems accordingly, wherein the at least one user-entered control condition is defined at the server computer system by the end-user using a respective device and is transferred from the server computer system to the node and stored in an internal memory of the node.