THERMOSTAT PROXIMITY SENSOR
First Claim
1. A heating, ventilation, and air conditioning (HVAC) device comprising:
- a transmitter configured to generate a transmission signal;
a splitter operably coupled to the transmitter, wherein the splitter is configured to;
output the transmission signal to an antenna; and
output a reflected signal to a microprocessor;
the antenna operably coupled to the splitter;
a memory operable to store at least a baseline frequency threshold for a room;
the microprocessor operably coupled to the transmitter, the splitter, the memory, and configured to;
determine a frequency difference between the frequency of the transmission signal and the frequency of the reflected signal;
compare the frequency difference to the baseline frequency threshold;
determine that an object is moving when the frequency difference is greater than the baseline frequency threshold; and
output a first control signal to adjust a temperature if the object is determined to be moving.
1 Assignment
0 Petitions
Accused Products
Abstract
A heating, ventilation, and air conditioning (HVAC) device that includes a transmitter configured to generate a transmission signal. A splitter is operably coupled to the transmitter and is configured to output the transmission signal to an antenna and output a reflected signal to a microprocessor. The HVAC device also includes a memory that is operable to store at least a baseline frequency threshold for a room. The microprocessor is operably coupled to the transmitter, the splitter, the memory, and is configured to determine a frequency difference between the frequency of the transmission signal and the frequency of the reflected signal, compare the frequency difference to the baseline frequency threshold, determine that an object is moving when the frequency difference is greater than the baseline frequency threshold, and output a first control signal to adjust a temperature if the object is determined to be moving.
25 Citations
20 Claims
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1. A heating, ventilation, and air conditioning (HVAC) device comprising:
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a transmitter configured to generate a transmission signal; a splitter operably coupled to the transmitter, wherein the splitter is configured to; output the transmission signal to an antenna; and output a reflected signal to a microprocessor; the antenna operably coupled to the splitter; a memory operable to store at least a baseline frequency threshold for a room; the microprocessor operably coupled to the transmitter, the splitter, the memory, and configured to; determine a frequency difference between the frequency of the transmission signal and the frequency of the reflected signal; compare the frequency difference to the baseline frequency threshold; determine that an object is moving when the frequency difference is greater than the baseline frequency threshold; and output a first control signal to adjust a temperature if the object is determined to be moving. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A heating, ventilation, and air conditioning (HVAC) detection method comprising:
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transmitting a transmission signal; receiving a reflected signal in response to transmitting the transmission signal; comparing the amplitude of the reflected signal to a baseline amplitude threshold to determine whether an object is present; determining a frequency difference between the frequency of the transmission signal and the frequency of the reflected signal if the object is determined to be present; comparing the frequency difference to a baseline frequency threshold; determining that the object is moving when the frequency difference is greater than the baseline frequency threshold; and output a first control signal to adjust a temperature if the object is determined to be moving. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A heating, ventilation, and air conditioning (HVAC) device comprising:
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a transmitter configured to generate a pulsed transmission signal; a splitter operably coupled to the transmitter, wherein the splitter is configured to; output the pulsed transmission signal to an antenna; and output a reflected signal to a microprocessor; the antenna operably coupled to the splitter; a memory operable to store at least a baseline distance threshold for a room; the microprocessor operably coupled to the transmitter, the splitter, the memory, and configured to; determine a time difference between when the pulsed transmission signal is transmitted and when the reflected signal is received; determine a distance using the time difference; compare the distance to the baseline distance threshold to determine whether an object is within a distance range; and output a first control signal to activate a display if the object is determined to be within the distance range. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification