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5/22/2014
09:24 AM
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Google's Nest Recalls Smoke Detector

Algorithm-detection flaw may misread any nearby motion as a command to silence an alarm.

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Google's Nest Labs is recalling about 440,000 smoke detectors because activity near the devices can be misinterpreted as a command to silence the alarm.

The company, acquired in January by Google for $3.2 billion, identified the problem in early April. CEO Tony Fadell said in a blog post at the time that recent laboratory testing of the Nest Protect: Smoke + Carbon Monoxide alarm revealed that the device's Nest Wave feature, which allows users to turn off the alarm with a wave of the hand, could be activated inadvertently, thereby preventing the device's alarm from sounding during a fire.

A list of frequently asked questions posted by Nest Labs indicates that the flaw lies in the Nest Wave algorithm, which analyzes motion detection data. Nest Labs halted sales of its smoke detector voluntarily last month and temporarily addressed the issue through a software update that disables Nest Wave. The recall notice formalizes the company's response to the problem through the involvement of the US Consumer Product Safety Commission (CPSC).

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The recall does not require removing the device and sending it back to Nest. The CPSC says that customers who have not connected their Nest Protect to the Internet through a WiFi network should do so to receive a software update that disables Nest Wave. Customers with devices already connected to the Internet are advised to confirm that the Nest Wave feature has been disabled by checking the Nest Sense section of their Nest account via Nest's mobile application or the Web.

Nest Labs has not received any reports of incidents, injuries, or property damage arising from this issue, according to the CPSC. Nest Protect is not currently available. When it was being sold, it cost about $130 and was available from Best Buy, Home Depot, and other retailers, as well as from Amazon.com, BestBuy.com, HomeDepot.com, and Nest's website.

Between 1999 and 2010, deaths due to unintentional, non-fire-related carbon monoxide poisoning averaged about 430 annually in the US, according to the Centers for Disease Control and Prevention. The CPSC says that in 2010, there were 161 unintentional non-fire carbon monoxide poisoning deaths associated with consumer products under the CPSC's jurisdiction.

Consumer product recalls occur fairly often, at a rate of around 80 per quarter. But they're new for Google, which wasn't a hardware company (apart from its Search Appliance and its home-grown data center hardware) until two years ago, when it acquired Motorola Mobility (since sold to Lenovo). The Nest Protect recall appears to be the first recall for a Google company. Last year, Google helped coordinate a HP Chromebook 11 recall that involved a faulty charger.

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Thomas Claburn has been writing about business and technology since 1996, for publications such as New Architect, PC Computing, InformationWeek, Salon, Wired, and Ziff Davis Smart Business. Before that, he worked in film and television, having earned a not particularly useful ... View Full Bio

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RobPreston
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RobPreston,
User Rank: Author
5/22/2014 | 9:37:14 AM
Welcome
Google, welcome to the world of mass consumer product manufacturing.
Drew Conry-Murray
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Drew Conry-Murray,
User Rank: Ninja
5/22/2014 | 11:12:57 AM
Algorithm?
So just how do you write an algorithm to distinguish between the hand-waving of 'Shut up, smoke detector, it's just dinner that burned' and the hand-waving of 'Holy crap my house is on fire! Google save me!'?
Lorna Garey
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Lorna Garey,
User Rank: Author
5/22/2014 | 11:30:17 AM
Re: Algorithm?
Why not have a PIN that you can enter to shut the thing off in case of dinner burning? Heck, you could write the PIN in Sharpie on the device. 

Although, of course, a keypad or *horrors* Sharpie graffiti would desecrate the design asthetic.
Thomas Claburn
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Thomas Claburn,
User Rank: Author
5/22/2014 | 4:14:37 PM
Re: Algorithm?
Nest missed the boat on voice recognition. "Alarm off" is a lot less prone to misinterpretation than trying to calculate the intention of a gesture.
Charlie Babcock
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Charlie Babcock,
User Rank: Author
5/22/2014 | 8:38:18 PM
First GM recalls, now Google
Google's roots lie in being a service company creating new products out of software. Just because it has the dough to acquire a hardware device company doesn't mean it automatically has become a competent hardware company. It may yet become one, but clearly some lessons are going to have to be learned the hard way.
SachinEE
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SachinEE,
User Rank: Ninja
5/26/2014 | 12:42:21 PM
Re : Google's Nest Recalls Smoke Detector
Sometimes it's good to be simple google, I agree the system is convenient because carbon monoxide is deadly and very hard to detect. If a good invention is not put at good use then it turns out as useless as the case here. I don't want to imagine the number of lives lost because the fire alarm didn't work. Google should up their game; if possible they should be sued for the inconvenience they caused their customers. Then again, don't they test those gadgets before they find their way into the markets?
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