Air filter condition sensing
First Claim
Patent Images
1. An air filter comprising:
- filter media comprising a downstream side and an upstream side;
an absolute pressure sensor attached to the downstream side of the filter media adapted to measure downstream pressure while air is moved through the filter media; and
circuitry coupled to the sensor, the circuitry configured to receive pressure data from the sensor representative of the condition of the filter media and wirelessly transmit such data, wherein the sensor does not rely on the monitoring of airflow through a bypass through or around the filter media.
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Abstract
An air filter includes filter media, a sensor, and circuitry coupled to the sensor, the circuitry configured to receive data from the sensor representative of the condition of the filter media and wirelessly transmit such data. The data may be received by a device with a display to use the information to present an indication of the filter media condition to a user.
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Citations
21 Claims
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1. An air filter comprising:
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filter media comprising a downstream side and an upstream side; an absolute pressure sensor attached to the downstream side of the filter media adapted to measure downstream pressure while air is moved through the filter media; and circuitry coupled to the sensor, the circuitry configured to receive pressure data from the sensor representative of the condition of the filter media and wirelessly transmit such data, wherein the sensor does not rely on the monitoring of airflow through a bypass through or around the filter media. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for determining the useful life of an air filter, the system comprising:
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filter media comprising a downstream side and an upstream side;
a single sensor attached to only the downstream side of the filter media for sensing a condition of the filter; and
circuitry coupled to the sensor, the circuitry configured to receive data from the sensor representative of the condition of the filter media and wirelessly transmit such data; anda personal mobile device comprising a processor;
a display coupled to the processor; and
a memory device coupled to the processor and having a program stored thereon for execution by the processor to perform operations comprising;
wirelessly receiving data directly or indirectly from the sensor representative of a condition of filter media;
providing a visual indication to a user on the display representative of the condition of the filter media as a function of the received data, wherein the visual indication includes a graphical representation of a remaining period of useful life of the filter media, and wherein the operations further comprise generating a filter type recommendation based on user profile information indicative of air quality. - View Dependent Claims (16, 17, 18, 19)
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20. A system for determining the useful life of an air filter, the system comprising:
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An air filter comprising;
filter media comprising a downstream side and an upstream side;an absolute pressure sensor attached to the downstream side of the filter media adapted to measure downstream pressure while air is moved through the filter media; and circuitry coupled to the sensor, the circuitry configured to receive pressure data from the sensor representative of the condition of the filter media and wirelessly transmit such data, wherein the sensor does not rely on the monitoring of airflow through a bypass through or around the filter media; and a personal mobile device comprising a processor;
a display coupled to the processor; anda memory device coupled to the processor and having a program stored thereon for execution by the processor to perform operations comprising;
wirelessly receiving data directly or indirectly from the sensor representative of a condition of filter media;
providing a visual indication to a user on the display representative of the condition of the filter media as a function of the received data, wherein the visual indication includes a graphical representation of a remaining period of useful life of the filter media. - View Dependent Claims (21)
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Specification