An occupancy sensing electronic thermostat is described that includes a thermostat body, an electronic display that is viewable by a user in front of the thermostat, a passive infrared sensor for measuring infrared energy and an infrared energy directing element formed integrally with a front surfac
An occupancy sensing electronic thermostat is described that includes a thermostat body, an electronic display that is viewable by a user in front of the thermostat, a passive infrared sensor for measuring infrared energy and an infrared energy directing element formed integrally with a front surface of the thermostat body. The passive infrared sensor may be positioned behind the infrared energy directing element such that infrared energy is directed thereonto by the infrared energy directing element. The thermostat may also include a temperature sensor and a microprocessor programmed to detect occupancy based on measurements from the passive infrared sensor.
대표청구항▼
1. A thermostat, comprising: a removable, wall-mountable back-plate;a shell body having a circular cross-section and a central axis generally perpendicular to a wall when the thermostat is wall-mounted, the shell body including a sidewall that extends along a length of the central axis between a fir
1. A thermostat, comprising: a removable, wall-mountable back-plate;a shell body having a circular cross-section and a central axis generally perpendicular to a wall when the thermostat is wall-mounted, the shell body including a sidewall that extends along a length of the central axis between a first end and a second end of the shell body, the first end of the shell body being proximate the wall-mountable back-plate;a circular rotatable ring mounted proximate the second end of the shell body, wherein:the circular rotatable ring has an axis of rotation generally perpendicular to the wall when the thermostat is wall-mounted;the circular rotatable ring being user rotatable about the axis of rotation, the circular rotatable ring slides about a frame of the thermostat;the circular rotatable ring is depressible such that the circular rotatable ring travels along the axis of rotation towards the wall-mountable back-plate;the circular rotatable ring receives user input by being rotated and depressed;the circular rotatable ring springably travels away from the wall-mountable back-plate when pressure applied to the circular rotatable ring along the axis of rotation towards the wall-mountable back-plate by a user is released; andthe circular rotatable ring springably travels away from the wall-mountable back-plate to provide a tactile click sensation;a circular cover mounted proximate the second end of the shell body, the circular cover having a central axis generally perpendicular to the wall when the thermostat is wall-mounted, the circular cover comprising a clear circular center portion surrounded by a colored outer portion, wherein the clear circular center portion permits light emitted from a dot-matrix display to pass through the circular cover;one or more temperature sensors for use in sensing temperature;the dot-matrix display mounted within the shell body proximate to the circular cover, wherein the dot-matrix display and the circular cover do not rotate when the circular rotatable ring is rotated; anda processing system provided in operative communication with: the circular rotatable ring, the dot-matrix display, and the one or more temperature sensors, the processing system configured to:determine a user-selected setpoint temperature based on user input provided via the circular rotatable ring;cause the dot-matrix display to display a numerical value representative of the sensed ambient air temperature; andcause a control signal to be transmitted to a heating system, cooling system, ventilation system, and/or air handling system based at least in part on a comparison of the user-selected setpoint temperature and the sensed ambient air temperature. 2. The thermostat of claim 1, wherein: the dot-matrix display is non-circular; andthe colored outer portion of the circular cover masks a remaining portion of the dot-matrix display so as to create a visual appearance of a circular graphical user interface. 3. The thermostat of claim 1, further comprising a rotation sensor mounted on a printed circuit board to sense rotation of the rotatable ring. 4. The thermostat of claim 3 further comprising: a first printed circuit board and a second printed circuit board, wherein the printed circuit board is the second printed circuit board. 5. The thermostat of claim 4, wherein the dot-matrix display is connected with the first printed circuit board. 6. The thermostat of claim 4, wherein a temperature sensor of the one or more temperature sensors is mounted to the second printed circuit board. 7. The thermostat of claim 1, wherein the wall-mountable back-plate detachably couples with the shell body via one or more magnets. 8. The thermostat of claim 1 further comprising a battery assembly in which batteries are user-replaceable. 9. The thermostat according to claim 1, wherein the display presents a numerical value representative of the user-selected setpoint temperature at a location along a vertical axis that perpendicularly intersects the central axis and extends vertically in a direction parallel to the wall when the thermostat is wall-mounted. 10. The thermostat according to claim 1, further comprising an occupancy sensor positioned behind the circular cover and between an edge of the dot-matrix display and the circular rotatable ring. 11. A thermostat, comprising: a removable, wall-mountable back-plate;a first printed circuit board;a second printed circuit board;a rotation sensor mounted on the second printed circuit board;a shell body having a circular cross-section and a central axis generally perpendicular to a wall when the thermostat is wall-mounted, the shell body including a sidewall that extends along a length of the central axis between a first end and a second end of the shell body, the first end of the shell body being proximate the wall-mountable back-plate;a circular rotatable ring mounted proximate the second end of the shell body, wherein:the circular rotatable ring has an axis of rotation generally perpendicular to the wall when the thermostat is wall-mounted;the circular rotatable ring being user rotatable about the axis of rotation, the circular rotatable ring slides about a frame of the thermostat;the circular rotatable ring is depressible such that the circular rotatable ring travels along the axis of rotation towards the wall-mountable back-plate;the circular rotatable ring receives user input by being rotated and depressed by a user;the circular rotatable ring springably travels away from the wall-mountable back-plate when pressure applied to the circular rotatable ring along the axis of rotation towards the wall-mountable back-plate by a user is released; andthe circular rotatable ring springably travels away from the wall-mountable back-plate to provide a tactile click sensation;a circular cover mounted proximate the second end of the shell body, the circular cover having a central axis generally perpendicular to the wall when the thermostat is wall-mounted, the circular cover comprising a clear circular center portion surrounded by a colored outer portion, wherein the clear circular center portion permits light emitted from a dot-matrix display to pass through the circular cover;a temperature sensor for use in sensing temperature;the dot-matrix display mounted within the shell body proximate to the circular cover, wherein:the dot-matrix display and the circular cover do not rotate when the circular rotatable ring is rotated;the dot-matrix display is non-circular; andthe colored outer portion of the circular cover masks a remaining portion of the dot-matrix display so as to create a visual appearance of a circular graphical user interface; anda processing system provided in operative communication with: the rotation sensor, the dot-matrix display, and the temperature sensor, the processing system configured to:determine a user-selected setpoint temperature based on user input provided via the circular rotatable ring;the dot-matrix display mounted within the shell body proximate to the circular cover, wherein the dot-matrix display and the circular cover do not rotate when the circular rotatable ring is rotated; andcause a control signal to be transmitted to a heating system, cooling system, ventilation system, and/or air handling system based at least in part on a comparison of the user-selected setpoint temperature and the sensed ambient air temperature. 12. The thermostat of claim 11, wherein the temperature sensor is located on the second printed circuit board. 13. The thermostat of claim 11 further comprising a battery assembly in which batteries are user-replaceable. 14. The thermostat according to claim 11, wherein the dot-matrix display presents a numerical value representative of a user-selected setpoint temperature at a location along a vertical axis that perpendicularly intersects the central axis and extends vertically in a direction parallel to the wall when the thermostat is wall-mounted. 15. The thermostat according to claim 11, wherein the processing system is configured to: determine a user-selected temperature value based on user input provided via rotation of the circular rotatable ring; andcause the dot-matrix display to display a numerical value representative of the sensed ambient air temperature. 16. The thermostat according to claim 11, wherein the processing system is configured to: cause a control signal to be transmitted to a heating system, cooling system, ventilation system, and/or air handling system based at least in part on a comparison of a user-selected temperature value and a sensed ambient air temperature.
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