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Cell Phones Could Sniff Out Deadly Chemicals

Hugh Pickens writes "Science Daily reports that Homeland Security's Science and Technology Directorate's Cell-All is an initiative to equip cell phones with a sensor capable of detecting deadly chemicals. A chip costing less than a dollar would be embedded in cell phones and programmed to alert either the cell phone carrier to the presence of toxic chemicals in the air, and/or a central station that can monitor how many alerts in an area are being received. While one alert might be a false positive, hundreds would indicate the need for evacuation. 'Our goal is to create a lightweight, cost-effective, power-efficient solution,' says Stephen Dennis, Cell-All's program manager. Does this always-on surveillance mean that the govenment can track your precise whereabouts whenever it wants? On the contrary, DHS says; Cell-All will operate only on an opt-in basis and will transmit data anonymously."

28 of 136 comments (clear)

  1. Great.. by stonedcat · · Score: 5, Funny

    Now I have to turn off my cellphone when I cook meth.

    --
    You can't take the sky from me.
    1. Re:Great.. by toastar · · Score: 4, Informative

      Now I have to turn off my cellphone when I cook meth.

      You should do that anyway.

  2. Mass Panic? by eldavojohn · · Score: 5, Insightful

    One might be a false positive. Hundreds might indicate the need for evacuation.

    So how is that person holding the false positive going to react? Maybe they're the first phone to realize it? Maybe they don't understand what 'false positive' means?

    For personal safety issues such as a chlorine gas leak, a warning is sounded; the user can choose a vibration, noise, text message or phone call.

    I'd be concerned those false positives might not be warmly received. Especially if someone in a crowded Starbucks has a phone that starts to alarm and says "Oh my god, there's chlorine gas in here!" You might be hit with some lawsuits after a few people are injured in a stampede. Contrived scenario? Maybe. But people are less than rational beings when their lives are perceived to be at stake. While academia is right on board some of the larger cities have been a little resistant toward citizen operated detectors.

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    1. Re:Mass Panic? by T+Murphy · · Score: 3, Insightful
      From the summary and article:

      A chip [...] programmed to either alert the cell phone carrier [...] and/or a central station

      I don't think the user is involved here (they probably thought of your scenario already).

    2. Re:Mass Panic? by HoppQ · · Score: 5, Informative

      How were you modded insightful?

      Well, if a person who has a slashdot account is logged in and that account has mod points, a drop-down menu will appear below a post, and choosing "Insightful" from it will mod the message.

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      My sig will be released in 2015 third quarter. Rating pending.
    3. Re:Mass Panic? by Alan426 · · Score: 3, Funny

      AT&T will charge $9.95 a month if you want to receive toxic gas warnings.

    4. Re:Mass Panic? by tomhudson · · Score: 2, Funny

      For personal safety issues such as a chlorine gas leak, a warning is sounded; the user can choose a vibration, noise, text message or phone call.

      You already have a fine detector for that - it's called your NOSE.

      Also works wonders for all other sorts of poisonous gases.

    5. Re:Mass Panic? by somersault · · Score: 3, Insightful

      I wouldn't object to a carbon monoxide detector in my phone.. it would be better than one of those little strips you leave near the boiler.

      Does this always-on surveillance mean that the govenment can track your precise whereabouts whenever it wants?

      This seems a little stupid.. simply having a phone and having it switched on surely means you can be tracked by the government already, if it really wanted to do so?

      --
      which is totally what she said
    6. Re:Mass Panic? by MiniMike · · Score: 2, Funny

      Don't forget there's a FAQ:
      http://yro.slashdot.org/faq/com-mod.shtml
      Scroll down to "How does moderation work?"
      Lots of other useful info there too.

  3. I trust 'em! by Cornwallis · · Score: 2, Funny

    On the contrary, DHS says Cell-All will operate only on an opt-in basis and will transmit data anonymously.

    And I'll fund this entire venture after I complete my sale of the Brooklyn Bridge.

  4. This will be the greatest thing since "SWATting" by mbstone · · Score: 3, Funny

    Hackers will be able to summon black helicopters full of men in white Hazmat suits and have entire city blocks cordoned off.

    There'll be an app to detect Colombian dope dealers wandering around with bags full of currency, so we can mug them.

    And don't forget the app that sniffs the air around you and occasionally plays the ringtone, "Phew! Somebody farted!"

  5. Made & Exported from Where It's Needed Most by eldavojohn · · Score: 4, Funny

    A chip costing less than a dollar is embedded in a cell phone and programmed to either alert the cell phone carrier to the presence of toxic chemicals in the air ...

    Well look on the bright side, the Chinese worker who makes the chip only has to step outside of the factory and turn it on to see if it works on a wide spectrum. Of course who would be foolish enough to risk their job, life, liberty and pursuit of happiness with a complaint about a local government official being bribed into letting your employer pollute to its heart's content?

    --
    My work here is dung.
  6. Sweet worse battery life! by ElSupreme · · Score: 3, Insightful

    Awesome now another chip in my phone to help trim away my already bad phone battery life!

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    1. Re:Sweet worse battery life! by vlm · · Score: 5, Informative

      Awesome now another chip in my phone to help trim away my already bad phone battery life!

      Most broad spectrum gas detection sensors generally work by heating up a strange oxide catalyst and measuring a resistance change. Not entirely unlike an O2 sensor in a car exhaust system.

      You can buy a gas sensor off the shelf from boutique online stores for about $5 each, so $1 in bulk wholesale is believable, or at least possible.

      The problem is power consumption. Check out a MQ-4, at a whopping 750 mW heater power. Thats probably more than the entire rest of the phone at peak. And the heater has to preheat for a minimum of 24 hours to provide good data, this is not something that "goes to sleep mode". Thats 3/4 of a watt, all day, every day. It will literally make a poor hand warmer in ones pocket.

      http://www.sparkfun.com/commerce/product_info.php?products_id=9404

      http://www.sparkfun.com/datasheets/Sensors/Biometric/MQ-4.pdf

      The parts in the sensor are not cheap. The manufacturer is already highly motivated to make it as small and light as possible, which would incidentally make it low powered. At this time, thats the best "we" can do with current technology. Its not like I cherry picked the highest power unit available. However, higher power would imply bigger would imply more durable, so I'd think a cell phone model might actually be worse.

      My very-much-non-smartphone uses a 3.7V lithium battery and runs "several days" between charges. Lets claim 4 days. So, 5 volts / 33 ohms = 150 ma times 5/3.7 (voltage upconverter) means 200 ma continuous draw from my 3.7V battery. 200 ma times 24 hours/day times 4 days, equals about 19 AMP-HOURS just to run the gas sensor. We'll add another amp-hour to run the phone itself, and round up to 20 AH.

      Batteryspace sells a nice 20 AH lead acid battery... 14 pounds, 7 inches by 3 inches by 7 inches. Rechargeable lithium, maybe half that size and weight. We are looking at the revival of the "bag phone" circa 1980s.

      http://www.batteryspace.com/sealedleadacidbattery12v20ah240whs.aspx

      I would qualify this idea as an epic fail.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
  7. Re:This will be the greatest thing since "SWATting by dwarfsoft · · Score: 2, Informative

    You mean this?

    Ah the The Vaughans, I have waited patiently for years to link to thee.

    --
    Cheers, Chris
  8. Bad idea by vikingpower · · Score: 2, Insightful

    Anything working only and mainly thanks to and through people's fears and worries is, to my experience, a bad idea.

    --
    Religous speak to God. Insane are spoken to by God. When all shut up, one can finally hear Shostakovich in peace
  9. Right... by Wolvenhaven · · Score: 5, Insightful

    DHS says Cell-All will operate only on an opt-in basis and will transmit data anonymously.
    Right, because the DHS has such a fine track record of opt-in, anonymous data, and not using it for other purposes. While they might have opt-in it will be buried under pages of the cellphone contract or settings and will be on by default requiring the user to spend a few hours figuring out where it is hidden to turn it off. Anonymous transmission, maybe anonymous by the fact it relays cell tower coordinates with an identifier number through which they can gain the personal information "only" by asking the cell provider.

    My question is, how often are dangerous chemicals released in the air for this to be needed? Places which handle dangerous chemicals already have detection systems in place, it's not often you hear of a city being evacuated because of some sort of toxic accident. Or is it to help combat terrorism? It sounds to me like it's a location based detection system which will be [ab]used to detect drugs and other activities instead of to "protect the public".

    --
    Orwell was an optimist.
  10. Deadly chemicals like benzoylmethylecgonine? by Rogerborg · · Score: 5, Insightful

    Also known as cocaine. Or tetrahydrocannabinol, diacetylmorphine, methamphetamine or similar killers of children. What, don't you want your cellphone to be used to sniff out the murderers of children? What kind of monster are you?

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    If you were blocking sigs, you wouldn't have to read this.
  11. Sounds Good by rhaacke · · Score: 2, Interesting

    As long as it is possible to buy a cell phone without the chip if I so choose.

  12. The posts say it! by srees · · Score: 2, Interesting

    Obviously I'm not the only one utterly convinced that the optional part is a complete sham. What a thin cover story for an attempt to embed bomb sniffing devices in something everyone carries, in the name of greater security. Folks at a rocketry convention would see men in black in no time flat if they 'forgot' to register their event with the monitors. 1986.

  13. Ionfinity is curr working with the Navy & Sams by TheyCallMeBruce · · Score: 2, Informative
  14. Mission Creep by Anonymous Coward · · Score: 3, Insightful

    "Cell-All will operate only on an opt-in basis and will transmit data anonymously"

    Buwahahhahaahahaaa, Yeah, I'm sure that's how it will start. But as with any "Security" program IT WILL result in mission creep. Airport searches, criminal activity databases, fingerprint databases, DNA databases, if there is one thing that our government has proven beyond a reasonable doubt it is that systems initially used to track/monitor for "bad" people/things will eventually be used to track/monitor everyone/everything. Airport searches initially only searched for things capable of commandeering/damaging the plane, now ANY form of contraband is searched for, drugs, kiddy porn, "Suspicious" money, even "objectionable" reading material has been screened. Wasn't there even a incident a while back where a cargo tracking system was used to track law abiding people instead? I see this particular system eventually used to search for meth labs, then used to get search warrants for houses where any illicit chemicals are detected. It'll eventually get so bad that setting off too many firecrackers or messing around with a home chemistry set/bioreactor (homemade fuel) will result in a SWAT team coming through your door, after all you could be a terrorist building a bomb.

  15. In Other News: Biology Lab Techs Shot by SWAT by cheesethegreat · · Score: 3, Interesting

    I used to work in a genetics lab, and this is a terrifying thought. Imagine 20 lab techs working with chemicals in the same room, easily enough to set off the "low levels indicating danger and not a drill" alarm. Assuming that this is set to detect chemicals that are not yet at dangerous levels, merely anomalous levels, how do they propose to avoid raiding GlaxoSmithKline on a daily basis?

    1. Re:In Other News: Biology Lab Techs Shot by SWAT by vlm · · Score: 2, Insightful

      Even worse, imagine a guy with a job as a house painter / floor refinisher / furniture refinisher.

      Car mechanics will also have an interesting false alarm profile.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
  16. Ha Ha by axonis · · Score: 5, Funny

    Sounds like "Vapour ware" to me ;)

    --
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  17. A telescreen in my pocket by wowbagger · · Score: 3, Interesting

    I have a solution to our energy crisis - connect a generator to George Orwell.

    HE only imagined the telescreen being able to hear and see you - not smell you and determine you had committed foodcrime by examining your flatulence.

    And of course, if you
    a) stand near somebody smoking (ANYTHING)
    b) stand near a barbecue
    c) stand downwind of somebody fertilizing their yard (OMFG NITROGEN COMPOUNDS! TERRRRRRORRRRRRISTS!)
    d) be in a room where somebody is using a non-approved substance
    You will be a suspect.

    If these chips are so wonderful, why not make them into self-contained modules and locate them throughout our cities, right along with the cameras, microphones, gun-shot detectors, radar units, tire-pressure monitor transponders, and so on.

    1. Re:A telescreen in my pocket by vlm · · Score: 3, Interesting

      If these chips are so wonderful, why not make them into self-contained modules and locate them throughout our cities

      The EPA has planted those for DECADES as revenue generators. Essentially the chemical plant equivalent of a red light camera. Go to your nearest chemical plant, look to prevailing downwind direction (assuming there is a prevailing wind direction in your geography) and locate a "one car sized" separately fenced in area with a pickup truck load of sensing gear, and power and phone lines feeding it, and plenty of no trespassing signs and locks. Also if you search 2600 or maybe Phrack from the 80s, you'll find an ancient article on dialing in and reading the results. This is old stuff, very old.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
  18. It is actually an intresting idea by SmallFurryCreature · · Score: 2, Interesting

    The idea is not a million miles removed from the folding@home and seti programs. Why build a supercomputer you can't afford when you can utalize existing hardware?

    Why install a dense and costly sensor grid when you can disribute the sensor in a much cheaper package? You could of course install countless sensors with their own battery pack, processing power and communication gear, OR you could hitch them to existing gear that is by its nature widely distrubuted.

    And with it, you could create a grid that reaches almost anywhere to measure air quality. I am pretty sure there are scientists who have a wet dream thinking of a very dense air measurment grid in urban areas.

    Sure, privacy could be an issue...

    Oh wait, no it isn't. If you got a phone, "they" can track you already. No special sniffer needed. How many of the privacy nutters got a phone? Your secret overlords thank you for carrying your tracker.

    So, no privacy issue is added except perhaps "they" being able to tell you farted.

    The idea is very close to using cellphones to track traffic jams. Lots of phone signals not moving? Traffic jam. Why not? The alternative is installing lots and lots of camera's.

    Yeah, the tech would need good laws to regulate it, but if done right, it could create a very powerful tool for having a dense sensor grid at marginal costs.

    We in the west enjoy excellent weather forcasts thanks to a dense grid of weather station, many of which are operated by amateurs. This could do the same for monitoring air quality with a hundred times refinement. An intresting idea, once you get beyond the knee jerk privacy reaction which anybody with a cellphone has already accepted. Allthough I wouldn't put it behind the average privacy nutter to wrap his cellphone in tinfoil, just in case.

    --

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