HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Feature
Electronics & Test
RF Trends in the Alarm & Security Market
6/6/2013

< Previous   Image 2 of 2   

Figure 2 : Typical example of alarm systems with interference showing the importance of co-existence properties in regards to performance, with TI's sub-1 GHz performance line (right).   (Source: TI)
Figure 2 : Typical example of alarm systems with interference showing the importance of co-existence properties in regards to performance, with TI’s sub-1 GHz performance line (right).
(Source: TI)

< Previous   Image 2 of 2   

Return to Article

View Comments: Oldest First|Newest First|Threaded View
apresher
User Rank
Blogger
RF Trends
apresher   6/6/2013 8:32:54 PM
NO RATINGS
Excellent article.  Hopefully the advantages and simplicity of wireless, along with the detailed functionality outlined here, will open the door to better automation and control within the home.

William K.
User Rank
Platinum
Wireless and interference, A SERIOUS PROBLEM
William K.   6/7/2013 9:51:56 PM
NO RATINGS
Looking at the effect of interference from just a wireless headset,consider how simple it would be to have an intentional generator for interference to render all of the sensors ineffective. So the task of defeating a 2.4 GHz wireless system is almost trivial. But consider the effort to disarm even one properly wired sensor. So why waste time with a product that is so very easily defeated?

 

Cabe Atwell
User Rank
Blogger
Re: Wireless and interference, A SERIOUS PROBLEM
Cabe Atwell   6/27/2013 11:16:42 PM
NO RATINGS
I agree with William. Couldn't someone with an RF transceiver just interfere with the sensors and render them useless thereby defeating the system all together?

C

William K.
User Rank
Platinum
Re: Wireless and interference, A SERIOUS PROBLEM
William K.   6/28/2013 4:58:01 PM
NO RATINGS
Cabe, that sort of interference certainly happens in voice communications systems, so it could also happen in a data system. Frequency hopping through a wide rangee could help, but that adds a lot of cost and certainly would increase the battery consumption quite a bit. Of course, DARPA probably has a work-around solution that they are not talking about much.

tekochip
User Rank
Platinum
Re: Wireless and interference, A SERIOUS PROBLEM
tekochip   6/28/2013 5:23:15 PM
NO RATINGS
If the control panel has not heard from a sensor, due to interference or whatever, that triggers an alarm, so the real issue becomes false alarms from interference.  That suggests the system is best suited for rather short distances, but at least it would be very easy to set up.


William K.
User Rank
Platinum
Re: Wireless and interference, A SERIOUS PROBLEM
William K.   6/28/2013 7:08:14 PM
NO RATINGS
What better way to nullify the effectiveness of a security system than to make it deliver false alarms several times a day. And a transmitter able to do that could be quite small and easily hidden. 

Of course the convenience of a wireless installation may be the overwhelming motivation for some folks, but in my opinion the reliability of a security system trumps easy installation by a large margin, and even trumps minimum cost by a fair amount. What good is an alarm system that is not working? It serves Only as a deterrent until the bad guys find out.

Partner Zone
Latest Analysis
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team £100 to make (about $161 US).
At Medical Design & Manufacturing Midwest, Joe Wascow told Design News how Optimal Design prototyped a machine that captures the wing-beat of a duck.
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
More:Blogs|News
Design News Webinar Series
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 20 - 24, How to Design & Build an Embedded Web Server: An Embedded TCP/IP Tutorial
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: 10/28-10/30 11:00 AM
Sponsored by Stratasys
Next Class: 10/28-10/30 2:00 PM
Sponsored by Gates Corporation
Next Class: 11/11-11/13 2:00 PM
Sponsored by Littelfuse
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service