Thermostat with ring-shaped control member

摘要

A sleek, low-profile wall-mountable thermostat for controlling an HVAC system is described. The thermostat includes a ring-shaped controller that rotates about a central axis, and an optical sensor directed away from the central axis and toward a radially inward-facing surface of the ring-shaped controller so as to accurately detect optical signals indicating controller's rotational movement.

主权项

1. A thermostat for controlling an HVAC system comprising:
a housing; a processing system disposed with in the housing; a rounded electronic display coupled to the processing system and mounted on the housing and adapted to display information to a user; a ring-shaped control member mounted on the housing so as to surround the rounded display and rotate about a central axis, the ring-shaped control member being configured to be inwardly pressable by the user along a direction of the central axis; and an optical sensor mounted within the housing and directed away from the central axis and toward a radially inward-facing surface of the ring-shaped control member, so as to detect optical signals indicating rotational movement of the ring-shaped control member and generate electrical signals therefrom, wherein the processing system is adapted and configured to detect user input based on the electrical signals generated by the optical sensor.