Using a healthy dose of modern-day electronics, engineers have created a pepper spray gun that automatically measures, shoots, and stops attackers, even when used by novices.
The new technology addresses an old dilemma facing those who use pepper spray guns for the first time. It creates a mist of droplets that are neither too big nor too small and can be effectively inhaled into the lungs in a way that temporarily debilitates people. "With this, all you have to do is pull the trigger and it sends out the right amount of pepper at the right distance," Roland Ouellette, founder of SAM Training LLC, told us. "It solves the problem of people not knowing how to use it properly."
David Bonneau of Enginasion: "It's the ultimate exercise in mechatronics design."
Known as Restrain and Identify, or R-I-D, the new device employs a combination of electronics and microfluidics to achieve the goal of making pepper spray guns more successful. Using an ultrasonic (or radar) sensor, it measures the distance to the perpetrator, sends a signal to a microcontroller (MCU), decides what pressure to employ, then dispenses the correct pepper spray pulse through the proprietary microfluidics system.
To enable users to call for help, it even incorporates an RF transceiver and a pair of cameras, thus enabling it to stream video to the user's private security company. Finally, R-I-D employs GPS (global positioning system) technology to provide its location.
"It's the ultimate exercise in mechatronics design," said David Bonneau, CEO of Enginasion, in an interview. Enginasion developed the system from Ouellette's initial ideas. "It needs great optics, great electronics, and great mechanics."
Enginasion, which specializes in product development, wrote its own software operating system for the gun, and chose the MCU, sensor, and transceiver hardware. It then teamed with an unnamed "microfluidics expert" to design the pneumatic spray system, making it work in closed-loop fashion with the onboard electronics.
Neat use of technology, but if you just carry a gun, the attacker will be right where you left him! (In the order of fairness, I could have said her, too, but statistically, not very common)
I carry a gun simply because a cop is too heavy.
Ebay has some very small HD cameras, the size of a key chain in fact. $5... Low light performance is poor, but with some simple upgrades it shouldn't be hard to get that corrected.
Communicating through Bluetooth is a good idea. Then you could have an app on the phone that communicates the way you want to. If it is the local police, then that is who is called. I guess that the "issue" is the storage of the video. Perhaps there could be a clooud service for storage of the video. Of course, if you have a service that is set up the way the designer has specified, then you do that. I
I see this as useful for litigation on both sides, as long as the video doesn't conveniently "disappear".
I think there needs to be a reevaluation of how many cell-connected devices one must carry though. If this device is going to call the police for you, one likely has four or more cell-service devices at close hand - the pepper spray can, a cell phone, a tablet such as i-pad, and the on-star service in a car.
I'd rather see this device be blue-tooth connected to my phone.
Glad to hear that the image shown is not the image they were planning to bring to market. There would be no way any one would carry around a device like that--far too big and scary looking.
I suppose that there's high utility in using a pepper spray gun correctly, but I guess I'm of mindset that we don't want to make it too easy. I could see one of these things whipping out on the soccer field as two over-the-top parents from opposing teams go at it. For me, the coolest thing about this innovation is the lessons it can bring in terms of mechatronics design. That's what is most important.
By experimenting with the photovoltaic reaction in solar cells, researchers at MIT have made a breakthrough in energy efficiency that significantly pushes the boundaries of current commercial cells on the market.
In a world that's going green, industrial operations have a problem: Their processes involve materials that are potentially toxic, flammable, corrosive, or reactive. If improperly managed, this can precipitate dangerous health and environmental consequences.
With LEDs dropping in price virtually every year, automakers have begun employing them, not only on luxury vehicles, but on entry-level models, as well.
From Dell / Intel® New Paradigms in Design Work Scott Hamilton, vertical market strategist for Dell Precision workstations, 5/2/2013 5
Early in my career, I worked as a draftsman and remember the days of drawing on vellum with numbered pencils and Mylar with plastic lead. This was a fun experience in the sense that I ...
I've been using workstations for more than 10 years and love finding ways to get more performance from my system. With demanding professional applications that require more power each ...
A lasting memory from my first job as an engineer in an auto assembly plant is standing on hard concrete at six in the morning, vending-machine coffee clutched in hand, listening to ...
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is
To save this item to your list of favorite Design News content so you can find it later in your Profile page, click the "Save It" button next to the item.
If you found this interesting or useful, please use the links to the services below to share it with other readers. You will need a free account with each service to share an item via that service.
Tweet This
3 
