POWER SAVINGS FOR WIRELESS SENSORS

• US 20200137658A1
• Filed: 10/21/2019
• Published: 04/30/2020
• Est. Priority Date: 10/24/2018
• Status: Active Grant

• Current Assignee: Carrier Corporation (Carrier Global Corporation)
• Original Assignee: Carrier Corporation (Carrier Global Corporation)
• Inventors: Gattu, Ramakrishna, Kandhi, Ravi Kumar, Jambuluri, Amarnath Reddy
• Granted Patent: US 11,570,685 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 1/32 Means for saving power
• CPC Class Codes: H04W 40/10 based on available power or energy
• CPC Class Codes: H04W 52/02 Power saving arrangements in wired systems H04L12/12; signaling of mobile application services, e.g. low battery notifications H04W4/20
• CPC Class Codes: H04W 52/0251 using monitoring of local events, e.g. events related to user activity
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A sensing system includes a wireless sensor configured to detect a current sensed value of an environmental condition, the wireless sensor programmed with a delta threshold; a thermostat in communication with the wireless sensor; wherein, when the current sensed value differs from a prior transmitted sensed value by more than the delta threshold, the wireless sensor transmits the current sensed value to the thermostat; wherein, when the current sensed value differs from the prior transmitted sensed value by less than the delta threshold, the wireless sensor stores the current sensed value as a stored sensed value.

Claims

1. A sensing system comprising:

a wireless sensor configured to detect a current sensed value of an environmental condition, the wireless sensor programmed with a delta threshold;

a thermostat in communication with the wireless sensor;

wherein, when the current sensed value differs from a prior transmitted sensed value by more than the delta threshold, the wireless sensor transmits the current sensed value to the thermostat;

wherein, when the current sensed value differs from the prior transmitted sensed value by less than the delta threshold, the wireless sensor stores the current sensed value as a stored sensed value.

2. The sensing system of claim 1, wherein, when one or more stored sensed values exceeds a limit, the wireless sensor transmits at least one stored sensed value to the thermostat.

3. The sensing system of claim 2, wherein the limit is one of a number of stored sensed values, a size of the stored sensed values or a time since a last transmission from the wireless sensor to the thermostat.

4. The sensing system of claim 1, wherein the thermostat adjusts the delta threshold in the wireless sensor.

5. The sensing system of claim 4, wherein the thermostat adjusts the delta threshold in the wireless sensor in response to an operating mode of the thermostat.

6. The sensing system of claim 4, wherein the thermostat adjusts the delta threshold in the wireless sensor in response to battery life of a battery in the wireless sensor.

7. The sensing system of claim 4, wherein the thermostat adjusts the delta threshold in the wireless sensor in response to a user input.

8. The sensing system of claim 1, wherein the delta threshold in the wireless sensor is adjusted by a remote computing system.

9. A method comprising:

detecting, at a wireless sensor, a current sensed value of an environmental condition, the wireless sensor programmed with a delta threshold;

when the current sensed value differs from a prior transmitted sensed value by more than the delta threshold, transmitting the current sensed value;

wherein, when the current sensed value differs from the prior transmitted sensed value by less than the delta threshold, storing the current sensed value as a stored sensed value at the wireless sensor.

10. The method of claim 9, wherein, when one or more stored sensed values exceeds a limit, transmitting at least one stored sensed value.

11. The method of claim 9, wherein the limit is one of a number of stored sensed values, a size of the stored sensed values or a time since a last transmission from the wireless sensor.

12. The method of claim 9, further comprising adjusting the delta threshold.

13. The sensing system of claim 12, wherein adjusting the delta threshold occurs in response to battery life of a battery in the wireless sensor.

14. The method of claim 12, wherein adjusting the delta threshold occurs in response to a user input.

15. The method of claim 9, further comprising adjusting the delta threshold in the wireless sensor by a remote computing system.

16. A computer program product, tangibly embodied on a computer readable medium, the computer program product including instructions that, when executed by a processor, cause the processor to perform operations comprising:

detecting, at a wireless sensor, a current sensed value of an environmental condition, the wireless sensor programmed with a delta threshold;

when the current sensed value differs from a prior transmitted sensed value by more than the delta threshold, transmitting the current sensed value;

wherein, when the current sensed value differs from the prior transmitted sensed value by less than the delta threshold, storing the current sensed value as a stored sensed value at the wireless sensor.