Data relay for a controller
First Claim
1. A data relay, comprising:
- an RF receiver configured to receive an RF signal transmitted from a remote location representing data from a sensor;
a demodulator that retrieves a base band data signal from the received RF signal;
a microcontroller that receives the base band data signal and determines an actual value of at least one parameter of interest; and
a modulator controlled by the microcontroller that transmits the actual value on a plurality of conductors by using a predetermined similar set of properties of a predetermined hard wired communication link of a controller.
0 Assignments
0 Petitions
Accused Products
Abstract
A two conductor hard wired communications link accepts an actual value of at least one parameter of interest from an environmental sensor in the form of data encoded on the conductors via current modulation. The sensor is mounted in location remote from an irrigation controller. A circuit connected to the sensor transmits an RF signal representing an actual value of a parameter of interest detected by the sensor. A data relay is connected to the hard wired communication link of the irrigation controller. The data relay includes a receiver that receives the RF signal, and circuitry configured to extract the actual value of the parameter of interest and emulate a predetermined set of physical and protocol properties of the hard wired communication link of the irrigation controller.
20 Citations
20 Claims
-
1. A data relay, comprising:
-
an RF receiver configured to receive an RF signal transmitted from a remote location representing data from a sensor; a demodulator that retrieves a base band data signal from the received RF signal; a microcontroller that receives the base band data signal and determines an actual value of at least one parameter of interest; and a modulator controlled by the microcontroller that transmits the actual value on a plurality of conductors by using a predetermined similar set of properties of a predetermined hard wired communication link of a controller. - View Dependent Claims (2, 3, 4, 5)
-
-
6. An irrigation system, comprising:
-
an irrigation controller including a hard wired communication link for accepting an actual value of at least one parameter of interest from an environmental sensor in the form of data encoded on the hard wired communication link of the irrigation controller; at least one environmental sensor mounted in a location remote from the irrigation controller; a circuit connected to the environmental sensor for transmitting an RF signal representing an actual value of a parameter of interest detected by the environmental sensor; and a data relay connected to the hard wired communication link of the irrigation controller and including a receiver that receives the RF signal, and circuitry configured to extract the actual value of the parameter of interest and use a predetermined similar set of properties of the hard wired communication link of the irrigation controller. - View Dependent Claims (7, 8, 9, 10)
-
-
11. A data relay, comprising:
-
a receiver that receives an RF signal encoded with at least one environmental parameter of interest; circuitry that extracts an actual value of the parameter of interest from the RF signal and uses a predetermined set of properties of a hard wired communication link of an irrigation controller; a housing that encloses the receiver and the extraction circuitry and includes a threaded hollow cylindrical stub for screwing into a knock out in a metal box housing the irrigation controller or into an electrical conduit, the stub having a hollow bore for routing a plurality of wires that form a part of the hard wired communication link of the controller; and an antenna connected to the receiver. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification