Resources Contact Us Home
Temperature control system having central control for thermostats

Image Number 2 for United States Patent #5361982.

Disclosed herein is a temperature control system for multi-zone temperature control with setback control. The system includes a thermostat associated with each zone of a building, and a central control unit which communicates with each thermostat to send temperature setpoint values to each thermostat for the purpose of conserving energy and reducing energy consumption during certain times of the day. Each thermostat is associated with either a heating or cooling device, where setup temperature values are sent from the central control unit to the thermostats where cooling devices are used in place of heating devices. The thermostats are designed to operate as stand-alone units which control the temperature within a zone based upon a temperature setpoint stored at the unit. The temperature setpoint values are replaced by the higher or lower temperature setpoint values transmitted to the thermostats by the control units during setback or setup time periods. To avoid the requirement of installing communication wires between the central control unit and thermostat, each thermostat and the central control unit includes communications circuitry which allows the thermostats and control unit to communicate over the power conductors within the building.

  Recently Added Patents
Mechanism for visible users and groups
Method and apparatus for selective decoding in a wireless communication system
Production of battery grade materials via an oxalate method
High brightness laser diode module
Light emitting device power supply circuit, and light emitting device driver circuit and control method thereof
Mirror elements for EUV lithography and production methods therefor
Adjustable high precision surveying device
  Randomly Featured Patents
Vehicle surroundings monitoring apparatus
System and method of verifying cryptographic postage evidencing using a fixed key set
Underload tapchanging voltage regulators for ease of field replacement and for improved operator safety
Integrated MOS one-way isolation coupler and a semiconductor chip having an integrated MOS isolation one-way coupler located thereon
Waterproof insulated connector
Closed evaporative cooling system for an engine
Combination microphone, speaker and control unit for a radio transceiver
Flexible drive coupling with convoluted links
Method and apparatus for capping cellular glass blocks for the load bearing insulation of liquefied gas storage tanks
Resist processing system