Programmable thermostat
A thermostat is described for controlling the application of electrical power to temperature modifying loads comprising: a clock operative to generate digital electrical signals having values representative of real time; a programmable, digital memory; program input means for loading the memory with a plurality of separate entries each entry including a pair of digital signals representing two temperatures defining limits of a desired temperature range at a particular time over the repetitive time cycle; display means for displaying a particular time and the corresponding temperature range; circuitry for applying the output of the clock to the memory to generate a digital electric signal representative of the upper and lower limits of the desired temperature range at a particular time as stored in a selected entry; and means for receiving an electrical signal having a characteristic which is a function of the ambient temperature and for receiving the generated output of the memory and for generating control signals for the loads.
- Assignee:
- Honeywell, Inc., Minneapolis, MN
- Patent Number(s):
- US 4606401
- OSTI ID:
- 5249267
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
AMBIENT TEMPERATURE
BUILDINGS
COMPUTERIZED CONTROL SYSTEMS
CONTROL
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
DIGITAL SYSTEMS
DISPLAY DEVICES
ELECTRONIC CIRCUITS
EQUIPMENT
MEMORY DEVICES
PROGRAMMING
SIGNALS
TEMPERATURE CONTROL
THERMOSTATS
TIME DEPENDENCE
TIMING CIRCUITS