HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Page 1/2  >  >>
vimalkumarp
User Rank
Gold
batteries a critical component
vimalkumarp   11/2/2011 10:55:36 PM
NO RATINGS
Many attempts have been made and are underway for implementing energy harvesting systems for powering the low power wireless sensor networks. It will be really interesting to explore a bit on these systems too

Jack Rupert, PE
User Rank
Platinum
Re: Power
Jack Rupert, PE   8/28/2011 2:53:43 PM
NO RATINGS
Thanks.  I'll look into that....  (At the moment, it doesn't look like the website is working).

soljacobs
User Rank
Iron
Re: Power
soljacobs   8/25/2011 1:23:08 PM
NO RATINGS
Pls go to www.tadiranbat.com or write to sales@tadiranbat.com for more info.

Jack Rupert, PE
User Rank
Platinum
Re: Power
Jack Rupert, PE   8/25/2011 12:10:51 PM
NO RATINGS
@soljacobs Do you have any info on those batteries?

soljacobs
User Rank
Iron
Re: Power
soljacobs   8/23/2011 3:23:00 PM
NO RATINGS
There are lithium batteries that have non-rechargeable operating lives of 25 years. They are already used in wireless devices such as utility meters and wireless sensors by the millions.

Loring Wirbel
User Rank
Blogger
Re: Power
Loring Wirbel   8/23/2011 12:33:32 PM
NO RATINGS
Thanks for bringing up the battery issue, Jack - absolutely critical.

Loring Wirbel
User Rank
Blogger
Re: What's the real hold up?
Loring Wirbel   8/23/2011 12:32:39 PM
NO RATINGS
Chuck, I hear different numbers all the time, but I think people expect a fairly functional (8-bit?  16/32?  ADC?) microcontroller available in high volume for well under $1, say in the 30 to 50 cent range.  Whether the low end is feasible....

Jack Rupert, PE
User Rank
Platinum
Power
Jack Rupert, PE   8/23/2011 11:40:59 AM
NO RATINGS
Loring, I agree that one of the main things holding back widespread use is the competing standards.  When I worked for an OEM, the customers always had some other idea in mind (and a lot of times it was whatever was "hot" at the moment".

I still think the other issue is the power source.  Once battery technology evolves to where you can get a reliable long-term (i.e., year+) or self-recharging source, this tech will really take off.

Charles Murray
User Rank
Blogger
Re: What's the real hold up?
Charles Murray   8/23/2011 10:45:40 AM
NO RATINGS
Loring: In the RFID world, we used tto hear about "nickel tags." The belief was that when nickel tags arrived, millions of products would suddenly use RFID. Is there a similar price-point goal for microcontroller-powered dust?

Loring Wirbel
User Rank
Blogger
Re: What's the real hold up?
Loring Wirbel   8/23/2011 10:22:15 AM
NO RATINGS
Probably the biggest problem in universal adoption is that there is no single protocol that is the equivalent of 802 LANs and the seven-layer OSI prototol stack in wireless sensor nets.  ZigBee is the most common physical and data-link protocol, though there's a lot of RFID, Wireless HART, NFC, etc.  Eventually, probably all such nets will use TCP/IP and have an IP address.  But the IP connection is not obvious because the cost of nodes needs to be so low.  Until the cost of microcontroller-powered "dust" drops, we may have quite a protocol mess out there!

Page 1/2  >  >>


Partner Zone
Latest Analysis
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.
Some humanoid walking robots are also good at running, balancing, and coordinated movements in group settings. Several of our sports robots have won regional or worldwide acclaim in the RoboCup soccer World Cup, or FIRST Robotics competitions. Others include the world's first hockey-playing robot and a trash-talking Scrabble player.
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
Melissa Cavanagh of 3DP Unlimited talked to Design News about the company’s large format 3D printer, during Medical Design and Manufacturing Midwest.
The DDV-IP is a two-wheeled self-balancing robot that can deliver cold beverages to thirsty folks on hot summer days. A wireless RF remote enables manual control of the device beyond the act of self-balancing. All of the features of the DDV-IP result in an effective delivery vehicle while providing entertainment to the user.
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
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