Smart-home hazard detector providing non-alarm status signals at opportune moments

Patent metadata

Field	Value
Publication number	US-9552718-B2
Application number	US-201514643912-A
Country	US
Kind code	B2
Filing date	Mar 10, 2015
Priority date	Oct 7, 2013
Publication date	Jan 24, 2017
Grant date	Jan 24, 2017

Abstract

A hazard detector may include a light sensor that senses a brightness level in an ambient environment. The hazard detector can have a processing system that receives an indication of the brightness level in the ambient environment from the light sensor. The processing system may then determine whether illumination in the ambient environment has been dimmed. Responsive to the dimming, the processing system may access information representative of a status of one or more components of the hazard detector. An illumination state may then be selected from a plurality of illumination states based on the accessed information representative of the status of the one or more components of the hazard detector. A light may then be illuminated based on the selected illumination state.

First claim

What is claimed is:

1. A hazard detector, comprising:
at least one hazard detection sensor that detects a presence of at least one type of hazard;
a light sensor that senses a brightness level in an ambient environment of the hazard detector;
a light; and
a processing system provided in operative communication with the at least one hazard detection sensor, the light sensor, and the light, the processing system configured to:
receive an indication of the brightness level in the ambient environment of the hazard detector from the light sensor;
determine whether the indication of the brightness level is indicative of a dimming of one or more illumination sources in the ambient environment;
access, responsive to an indication of the dimming of the one or more illumination sources, information representative of a status of one or more components of the hazard detector;
select an illumination state from a plurality of illumination states based on the accessed information representative of the status of the one or more components of the hazard detector; and
cause the light to illuminate using the selected illumination state of the plurality of illumination states.

2. The hazard detector of claim 1 , wherein the at least one hazard detection sensor comprises a smoke detection sensor and a carbon monoxide detection sensor.

3. The hazard detector of claim 1 , wherein the processing system is further configured to:
determine whether a battery charge of a battery of the hazard detector is below a threshold charge level, wherein the selected illumination state is indicative of a low battery condition.

4. The hazard detector of claim 1 , wherein each illumination state of the plurality of illumination states comprises at least a color and an animation pattern.

5. The hazard detector of claim 1 , wherein the processing system is configured to cause the illumination state to comprise:
gradually increasing a brightness level of the light for at least 0.5 seconds;
maintaining the brightness level of the light for at least 0.5 seconds; and
gradually decreasing the brightness level of the light for at least 0.5 seconds.

6. The hazard detector of claim 1 , further comprising:
a wireless transceiver configured to communicate with a wireless network, wherein the processing system is further configured to transmit a request to a remote server system accessible via the wireless transceiver and the Internet.

7. The hazard detector of claim 6 , wherein the processing system is further configured to:
receive a notification from the remote server system via the wireless transceiver, wherein the illumination state is selected by the processing system based on the status check of the one or more components of the hazard detector and the notification from the remote server system received via the wireless transceiver.

8. The hazard detector of claim 1 , wherein the light comprises at least five light emitting diodes (LEDs) that output light from the hazard detector in a circular pattern.

9. The hazard detector of claim 8 , further comprising:
a button configured to be actuated by a user to initiate a function of the hazard detector, wherein the plurality of LEDs are arranged to output light from the hazard detector in the circular pattern encircling the button.

10. The hazard detector of claim 1 , wherein the processing system is further configured to:
determine, responsive to an indication of the dimming of the one or more illumination sources, that at least a threshold time period has elapsed since previously causing the light to illuminate, wherein the processing system being configured to cause the light to illuminate based on the illumination state further comprises the processing system being configured to cause the light to illuminate based on at least the threshold time period having been determined to have elapsed.

11. The hazard detector of claim 1 , further comprising:
a motion detection sensor that senses motion in the ambient environment of the hazard detector, wherein the processing system is further configured to:
cause the light to illuminate based on the motion detector indicating motion is present in the ambient environment of the hazard detector and responsive to the indication of the dimming of the one or more illumination sources.

12. The hazard detector of claim 11 , wherein the processing system is configured to:
cause the light to illuminate based on the motion detector indicating motion is present in the ambient environment of the hazard detector, responsive to the indication of the dimming of the one or more illumination sources, and a user-defined setting stored by the processing system indicative of the hazard detector being not inside a bedroom.

13. A method for outputting a status of a hazard detector, the method comprising:
measuring, by the hazard detector, a brightness level in the ambient environment of the hazard detector;
determining, by the hazard detector, whether the brightness level in the ambient environment of the hazard detector is indicative of a dimming of an illumination source;
accessing, responsive to determining the brightness level in the ambient environment is indicative of the dimming of the illumination source, information representative of a status of the hazard detector;
selecting, by the hazard detector, an illumination state from a plurality of illumination states based on the information representative of the status of the hazard detector; and
causing, by the hazard detector, a light of the hazard detector to illuminate using the selected illumination state of the plurality of illumination states.

14. The method for outputting the status of the hazard detector of claim 13 , wherein the hazard detector comprises a smoke detection sensor and a carbon monoxide detection sensor and the method further comprises:
performing, by the hazard detector, a status check of one or more components of the hazard detector, which comprises checking a status of the smoke detection sensor and the carbon monoxide detection sensor, wherein the information representative of the status of the hazard detector is representative of the status of the smoke detection sensor and the carbon monoxide detection sensor.

15. The method for outputting the status of the hazard detector of claim 13 , further comprising:
wirelessly communicating, by the hazard detector, with a wireless network, to transmit a request to a remote server system accessible via the wireless network and the Internet.

16. The method for outputting the status of the hazard detector of claim 15 , further comprising:
receiving, by the hazard detector, via the wireless network, a notification from the remote server system, wherein the illumination state is selected by the processing system based on notification from the remote server system received via the wireless network.

17. The method for outputting the status of the hazard detector of claim 13 , the method further comprising:
determining, by the hazard detector, that at least a threshold time period has elapsed since previously causing the light to illuminate in response to determining that the brightness level is indicative of the dimming of the illumination source; wherein causing, by the hazard detector, the light to illuminate based on the illumination state is further based on at least the threshold time period having been determined to have elapsed.

18. The method for outputting the status of the hazard detector of claim 13 , wherein causing the light of the hazard detector to illuminate usi

Assignees

• Google Inc

Inventors

• Fadell Anthony M
• Rogers Matthew L
• Sloo David
• Veron Maxime
• Le Guen Sophie
• Matsuoka Yoky
• Boyd Jeffrey A

Classifications

• H05B47/19

  via wireless transmission · CPC title

• H05B45/20

  Controlling the colour of the light · CPC title

• H05B47/11

  by determining the brightness or colour temperature of ambient light · CPC title

• G08B29/185

  Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system · CPC title

• H04L12/2803

  Home automation networks · CPC title