System and method for high-sensitivity sensor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G08B-017/10
G08B-021/18
G01N-033/00
G08B-001/08
G08B-025/00
G08B-029/26
G08B-025/10
출원번호
US-0165003
(2014-01-27)
등록번호
US-8963726
(2015-02-24)
발명자
/ 주소
Kates, Lawrence
출원인 / 주소
Google Inc.
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
5인용 특허 :
218
초록▼
A sensor unit that includes at least one sensor configured to measure an ambient condition is described. The controller can be configured to receive instructions, to report a notice level when the controller determines that data measured by the at least one sensor fails a report threshold test corre
A sensor unit that includes at least one sensor configured to measure an ambient condition is described. The controller can be configured to receive instructions, to report a notice level when the controller determines that data measured by the at least one sensor fails a report threshold test corresponding to a report threshold value. The controller can also be configured to obtain a plurality of calibration measurements from the at least one sensor during a calibration period and to adjust the threshold based on the calibration measurements. The controller can be configured to compute a first threshold level corresponding to background noise and a second threshold level corresponding to sensor noise, and to compute the report threshold value from the second threshold. In one embodiment, the sensor unit adjusts one or more of the thresholds based on ambient temperature.
대표청구항▼
1. A wireless device comprising: a smoke sensor configured to obtain measurement data regarding a level of smoke;a wireless transceiver capable of wirelessly transmitting and receiving information to and from an electronic device located remotely from the wireless device;a power source for powering
1. A wireless device comprising: a smoke sensor configured to obtain measurement data regarding a level of smoke;a wireless transceiver capable of wirelessly transmitting and receiving information to and from an electronic device located remotely from the wireless device;a power source for powering operation of the wireless device; anda controller operatively coupled to the wireless transceiver and the smoke sensor and configured to: operate the wireless device in a sleep mode whereby consumption of power from the power source is lower than when the wireless device operates in an awake mode;temporarily switch the wireless device from the sleep mode to the awake mode;operate the smoke sensor to obtain first measurement data regarding the level of smoke;operate the smoke sensor to obtain second measurement data regarding the level of smoke after obtaining the first measurement data; andadjust, based at least in part on the first measurement data: a reporting threshold level indicative of an amount of smoke deemed hazardous, and/ora rate at which the second measurement data is obtained, wherein the rate at which the second measurement data is obtained is different than a rate at which the first measurement data was obtained. 2. The wireless device of claim 1, wherein the wireless transceiver is configured to transmit and/or receive information and the smoke sensor is configured to obtain the second measurement data regarding the level of smoke while the wireless device is operating in the awake mode. 3. The wireless device of claim 1, wherein the wireless transceiver is inoperable to transmit or receive information when the wireless device is in the sleep mode. 4. The wireless device of claim 2, wherein the controller is configured to operate the wireless device in the sleep mode while obtaining the first measurement data and operate the wireless device in the awake mode while obtaining the second measurement data, the rate at which the second measurement data is obtained being higher than the rate at which the first measurement data is obtained. 5. The wireless device of claim 4, wherein the controller is configured to temporarily switch the wireless device from the sleep mode to the awake mode periodically. 6. The wireless device of claim 4, wherein the controller is configured to temporarily switch the wireless device from the sleep mode to the awake mode if a measured level of smoke of the first measurement data exceeds a predetermined threshold level. 7. The wireless device of claim 1, further including a tamper sensor; wherein the controller is further configured to cause the wireless device to switch from the sleep mode to the awake mode in response to receiving an indication of a fault condition from the tamper sensor when the wireless device from the sleep mode. 8. A method of operating a wireless device, comprising: operating the wireless device in a sleep mode, whereby consumption of power of the wireless device is lower than when the wireless device operates in an awake mode;temporarily causing the wireless device to switch from the sleep mode to the awake mode;obtaining, with a smoke sensor of the wireless device, first measurement data regarding a level of smoke;obtaining, with the smoke sensor, second measurement data regarding the level of smoke after obtaining the first measurement data; andadjusting, based at least in part on the first measurement data: a reporting threshold level indicative of an amount of smoke deemed hazardous, and/ora rate at which the second measurement data is obtained, wherein the rate at which the second measurement data is obtained is different than a rate at which the first measurement data was obtained. 9. The method of operating a wireless device of claim 8, wherein adjusting the reporting threshold level is based on a rate of increase of the level of smoke as indicated by the first measurement data. 10. The method of operating a wireless device of claim 8, wherein adjusting the reporting threshold level is based on an ambient temperature. 11. The method of operating a wireless device of claim 8, further comprising performing a diagnostic test of the wireless device and communicating information indicative of results of the diagnostic test to an electronic device located remotely from the wireless device via a wireless transceiver included in the wireless device. 12. The method of operating a wireless device of claim 8, further comprising: determining, based on the second measurement data, that the level of smoke exceeds the reporting threshold level; andcommunicating information indicating that the reporting threshold level has been exceeded to an electronic device located remotely from the wireless device via a wireless transceiver included in the wireless device. 13. The method of operating a wireless device of claim 11, wherein communicating the information occurs while the wireless device is in the awake mode, the method further comprising listening for instructions while in the awake mode, after communicating the reporting threshold level has been exceeded, and before returning back to the sleep mode. 14. The method of operating a wireless device of claim 8, further comprising: wirelessly communicating information indicative of the first measurement data and/or the second measurement data from the wireless device to an electronic device located remote from the wireless device via a wireless transceiver included in the wireless device. 15. The method of operating a wireless device of claim 8, further comprising receiving, by the wireless device and during a reset interval, an identifier for the wireless device. 16. The method of operating a wireless device of claim 15, wherein the identifier is received via wireless communication. 17. A system for smoke detection, comprising: means for operating a wireless device in a sleep mode, whereby consumption of power of the wireless device is lower than when the wireless device operates in an awake mode;means for temporarily causing the wireless device to switch from the sleep mode to the awake mode;means for obtaining first measurement data regarding a level of smoke and second measurement data regarding the level of smoke after obtaining the first measurement data; andmeans for adjusting, based at least in part on the first measurement data: a reporting threshold level indicative of an amount of smoke deemed hazardous, and/ora rate at which the second measurement data is obtained, wherein the rate at which the second measurement data is obtained is different than a rate at which the first measurement data was obtained. 18. The system for smoke detection of claim 17, further comprising means for causing the wireless device to listen for one or more instructions while operating in the awake mode, and, in response to receiving the one or more instructions, perform one or more functions requested by the one or more instructions while operating in the awake mode. 19. The system for smoke detection of claim 17, further comprising: means for determining an available radio frequency channel; andmeans for wirelessly communicating information indicative of the level of smoke,wherein the information indicative of the level of smoke is wirelessly communicated from the wireless device to an electronic device located remote from the wireless device over the available radio frequency channel. 20. The system for smoke detection of claim 17, further comprising: means for determining a fault condition of the wireless device; andmeans for wirelessly communicating information indicative of the fault condition from the wireless device to an electronic device located remote from the wireless device.
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