Wireless thermostat with dual stage failsafe circuits
First Claim
Patent Images
1. A thermostat comprising:
- a wireless transmitter;
control circuits coupled to the wireless transmitter;
power sensing circuitry; and
a thermal sensor coupled to the control circuits,wherein the control circuits respond to a pre-set temperature requirement to activate a selected output,wherein the control circuits, responsive to sensing available power at a first level, reduce wireless communications through the wireless transmitter to a predetermined level, andwherein the control circuits are deactivated in response to sensing the available power being at a second level lower than the first level so that the selected output is activated by a thermally responsive switch.
4 Assignments
0 Petitions
Accused Products
Abstract
A multi-mode thermostat includes a sensor of ambient temperature and control circuits coupled to the sensor, wherein the control circuits are responsive to signals from the sensor to maintain a predetermined regional temperature. First electrically actuated backup circuits are responsive to a firt sensed operational power level to alter a status signal transmission rate by the control circuits. Second electrically actuated backup circuits are responsive to a lower sensed operational power level to provide a backup, lower regional temperature electromechanically.
9 Citations
19 Claims
-
1. A thermostat comprising:
-
a wireless transmitter; control circuits coupled to the wireless transmitter; power sensing circuitry; and a thermal sensor coupled to the control circuits, wherein the control circuits respond to a pre-set temperature requirement to activate a selected output, wherein the control circuits, responsive to sensing available power at a first level, reduce wireless communications through the wireless transmitter to a predetermined level, and wherein the control circuits are deactivated in response to sensing the available power being at a second level lower than the first level so that the selected output is activated by a thermally responsive switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A multi-mode thermostat comprising:
-
a sensor of ambient temperature; control circuits coupled to the sensor, wherein the control circuits are responsive to first signals from the sensor to maintain a predetermined regional temperature; electrically actuated first backup circuits that are responsive to a first operational power level to reduce a frequency of data transmission by the control circuits; and mechanically actuated second backup circuits that are responsive to a second operational power level to maintain a backup regional temperature. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A method comprising:
-
providing a sensor of ambient temperature; control circuits of a thermostat receiving first signals from the sensor and, responsive to the first signals from the sensor, maintaining a first predetermined regional temperature; the control circuits sensing a first operational power level of the thermostat; the control circuits, responsive to sensing the first operational power level, reducing a rate of transmission of status signals; and the control circuits, responsive to sensing a second operational power level, deactivating to terminate the transmission of the status signals. - View Dependent Claims (19)
-
Specification