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Audio Rises for Event Detection

7/25/2016 10:53 AM EDT
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realjjj
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Re: Auto leads innovation
realjjj   7/29/2016 1:24:24 PM
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Self-driving cars wouldn't be alone on the road for a long period of time, the transition is gradual. After all  that's the most difficult part, having to deal with human drivers and the crazy things they do.

realjjj
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Re: Solution looking for a problem?
realjjj   7/27/2016 7:16:25 AM
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That would be a long term solution and vehicle- to -vehicle communications for a lot more than just this should be a given. The horn should also to be heard and interpreted and it's not practical to retrofit all cars.  Guess it is debatable if such a feature is a must to reach good enough or if it creates sufficient value.

dromdrom
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Solution looking for a problem?
dromdrom   7/27/2016 3:53:33 AM
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Using audio to detect the location of a siren sounds (pun intended) to me like a solution looking for a problem. A more straightforward solution could be that the car with siren not ony makes a loud noise but also sends its position using a robust WiFi standard (e.g. like used in car-to-car communication).

I often see this typical engineering trait where the focus on the technology one is comfortable with overshadows the desire to look with an open mind for solutions offered by other technologies.

MattCrowley
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Re: Siren Direction locator?
MattCrowley   7/26/2016 2:43:19 PM
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Absolutely - whatever we can do with our ears can be done autonomously.  

Take it one step further and a cloud connected car with a modest AI can analyze the sound remotely and send you a notification of exactly what's wrong. 

This data is very valuable too. You can have the car repair info sent out to ten local mechanics to bid on the repair work. With a temporary biometric voice pass code you can even have them pick up the car when you are not using it and return it when it is fixed. Can you tell I dread dealing with car repairs. 

This would also be great for fleet management for autonomous vehicles. 

 

 

MWagner_MA
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Re: Siren Direction locator?
MWagner_MA   7/26/2016 2:33:47 PM
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Now you're on to something!  You know when you go to the mechanic to explain a sound the car is making, hey have a button on the dash to "REC" the sound and play it back for them! :-)  It will help them tell front, back, left right.

MattCrowley
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Re: Smart Sensors Using Audio
MattCrowley   7/26/2016 2:33:32 PM
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Thanks for the mention Socrates. It seems that given the security needs our society faces, these types of acoustic sentry systems will soon be as common as smoke detectors. 

MattCrowley
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Re: Siren Direction locator?
MattCrowley   7/26/2016 2:27:43 PM
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Greeat idea!

I have spoken to several automotive companies that want to do this exactly by placing mics in the bumper. You can put an exterior array on your car and it will detect sirens and tell you where the emergency vehicle is coming from. The issue is that the mics need to be totally dirt and waterproof and stay that way for the expected >10 year lifetime of the vehicle. If a mic gets out of sync with the others it will not locate the siren and is actually worse than nothing. This is even more important for self driving cars to increase environmental awareness. They need to hear car horns, people yelling, other cars, etc. You can also use mics to self diagnosis certain mechanical problems. 

There are some wild ideas out there. One is to put a mic on all the livestock at a farm to track their health and movement.

Another we wil need is arrays to detect drones. I have gotten several requests on this application. Again the mic needs to be rugged and waterproof. Same goes for mic arrays on drones. You need some pretty good mics and algorithms to cancel that self generated noise. 

 

 

 

 

MWagner_MA
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Siren Direction locator?
MWagner_MA   7/26/2016 7:18:09 AM
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I wonder if anyone is working on a siren direction locator? We have "shot spotter" technology to locate the direction a gunshot is heard, why not use similar tech to help locate the direction the siren is coming from? Manytimes a human can't easily do that until the emergency vehicle appears within visual range and at that time you may not have the space to pull over enough to help the emergency crews navigate a busy intersection.

cpcpcp
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Re: Auto leads innovation
cpcpcp   7/25/2016 5:17:31 PM
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I fail to see how, in a "self-driving car" with sensors and v2x communication systems, a horn could be a useful warning of any kind. If it were, there is no hope to lower the noise level in cities around the world (ever tried to drive in NY, Mumbai...): the self-driving cars would happily honk at one another and maybe curse too! :)

rhotaling
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Re: Smart Sensors Using Audio
rhotaling   7/25/2016 5:14:59 PM
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BioMimetic Systems smart acoustic sensors + Vesper microphones = sea change in gunshot and explosion detection in terms of speed, reliability and affordability. Verbi's incredible survivability system depends on the speed and accuracy of these intelligent shot detectors (ISDs) to perform real-time threat analysis and send notifications within seconds of gunfire. As Socrates413 stated, privacy is a tremendous concern to nearly all facility administrators and only these smart acoustic sensors make it possible for every organization globally to provide security without sacrificing privacy. I am certain this type of technology will become building code in the coming years and Vesper, BMS and Verbi and will be the leaders.

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