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Electromagnetic interference can come from
many other devices, including baby monitors, remote controls, power lines, microwave ovens, and fluorescent lighting. Structural interference comes from walls, floors, ceilings, or things like metal filing cabinets. However, these issues are rare. To help counter potential issues, each wireless sensor contains its own battery, which works great, especially in a power outage. Just make sure you stay on top of changing out your batteries so you know they’re always operating at peak performance. Additionally, wireless security systems are quite safe—to learn more, visit our blog post on wireless home security systems. If your home has been prewired for a security system, a hardwired option may be a better choice since the system will be easy to install. If you already know which provider installed the equipment, activating your system is simple—all that’s required is a phone call and maybe a tech visit to update the control panel. If you’d rather go with a different provider, installing and updating the system
ought to be as straightforward as programming a new number into the control panel. In some cases, a converter or even a new control panel may be necessary, but as long as the wiring itself hasn’t been damaged, all the existing sensors should work with any provider’s equipment—all hardwired systems contain essentially the same technology. One of the ways Vivint is trying to separate from the competition is by positioning themselves as more of a ‘home automation’ solution.
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''This project started as a way for me to teach students to see andunderstand the ways that
engineering can be used for the greater good,''said Kumar Yelamarthi, the professor and project leader. ''We wanted to dosomething that would help people and make our campus more accessible. '' During the
spring term, Yelamarthi and five senior engineering studentstested the cane, which is equipped with Radio Frequency Identificationtechnology, similar to what retailers put on products to keep them frombeing stolen. The Smart Cane contains an ultrasonic sensor that is paired with aminiaturenavigational system inside a messenger style bag worn across the shoulder. For the test, the students installed identification tags between twobuildings on the campus in Mount Pleasant, Mich. A speaker located on thebag strap gave audio alerts when the system detected an obstacle and toldthe user which direction to move. Students wearing glasses that simulate visual impairment tested the cane. The students also created a vibrating glove to assist those who are bothvisually and hearing impaired. Yelamarthi said it's one of the first outdoor applications of RFID and saidhe plans for students in upcoming classes to further refine the systemwhilehe seeks grants to speed the research. The next step probably involves using the system in a wider area. Down theline, Yelamarthi wants to work toward integrating the Smart Cane's datawithGPS.
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