Embedded Systems Conference
Breaking News
Comments
Oldest First | Newest First | Threaded View
<<   <   Page 2 / 3   >   >>
elctrnx_lyf
User Rank
Author
Re: Bridge safety
elctrnx_lyf   7/22/2013 4:50:46 AM
NO RATINGS
As long as cost of developing this technology for the bridges is a very small portion of the actual bridge, it is definitely an added value. In the reverse I would defnitely not suggest to use such a technology. But overall this sounds really cool application of the technology.

Sanjib.A
User Rank
Author
Re: Bridge safety
Sanjib.A   7/22/2013 12:01:24 PM
NO RATINGS
@Peter: I agree and I think that is what Susan, I and some of us are mentioning about. This is the direction to which the world is moving - Prognostics: proactive health checking and planning necessary maintenance schedule well in advance to safeguard the structures.. As you said, surely there will be companies providing this kind of services. This is certainly not aiming towards frightening the travelers with warning that something bad could occur.

docdivakar
User Rank
Author
Re: Safer bridges
docdivakar   7/23/2013 3:49:12 PM
NO RATINGS
@Susan: Regarding "What would these MEMS sensors do in an earthquake?", they can provide VERY valuable data on transmissibility of the ground motions to the structure which is dependent on the structure's toplogy, mass and support conditions. That is the most valuable data input needed for prognostics.

MP Divakar

Susan Rambo
User Rank
Author
Re: Safer bridges
Susan Rambo   7/23/2013 4:59:03 PM
NO RATINGS
@docdivakar, Interesting about MEMS sensors and earthquakes. USGS (United States Geological Survey) has been using MEMS for a while now. Here's a paper from 2005: "TREMOR: A wireless MEMS accelerograph for dense arrays" and additional info here. I don't have time to search for more right now, but if you find an interesting link, feel free to post it in this discussion forum.

Peter Clarke
User Rank
Author
Re: Bridge safety
Peter Clarke   7/24/2013 5:27:32 AM
NO RATINGS
direction in which the world is moving?

 

Pun intended?

 

rich.pell
User Rank
Author
Re: Bridge safety
rich.pell   7/24/2013 6:05:18 AM
NO RATINGS
I should think this (i.e., sensors embedded in all manner of infrastructure along with public access to the data) will become commonplace at some point.  We are increasingly using them in vehicles, buildings and even our bodies to vastly improve monitoring of real-time "operating conditions." The benefits for doing so with infrastructure are equally clear - just on a larger scale.

DrFPGA
User Rank
Author
Recent Bridge Collapse in WA State
DrFPGA   7/24/2013 4:07:50 PM
NO RATINGS
We had a bridge collapse here in WA State a couple of months ago. Part of the issue was repeated strikes by 'oversized' trucks to the upper girders. A sensor array that could just measure some 'out of specification' vibrations would probably have helped identify an issue which could have been corrected prior to failure. Now, if the failure happens RIGHT AFTER a quick series of strikes, maybe it doesn't help much, but if the strikes happen over a period of time thats when sensors would help.

rich.pell
User Rank
Author
Re: Recent Bridge Collapse in WA State
rich.pell   7/24/2013 4:33:11 PM
NO RATINGS
I think these sensor networks would be continuously monitoring many factors affecting the structural integrity of the bridge, including strain, tilt, deformation etc., as well as vibration, making sudden failure scenarios under any normal circumstances seem quite remote.

DrFPGA
User Rank
Author
Re: Recent Bridge Collapse in WA State
DrFPGA   7/24/2013 4:42:05 PM
NO RATINGS
Rich-

The variety of sensor measurements that could be made is quite extensive. Strain might be one of the more difficult measurements to make (and identifying the locations to make the measurement might be a problem). If we can find some smart materials where things like strain could be easily measured because the 'strain gage' is 'integrated' into the material that would be fantastic. Anyone know of any work going on it that area that might apply?

R_Colin_Johnson
User Rank
Author
Re: Recent Bridge Collapse in WA State
R_Colin_Johnson   7/25/2013 2:48:52 PM
NO RATINGS
Many new structures are including integrated sensors to detect strain. There is also work on paints with integrated sensors that can just be applied to existing structures.

<<   <   Page 2 / 3   >   >>


Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

March 28 is Arduino Day -- Break Out the Party Hats!
Max Maxfield
7 comments
Well, here's a bit of a conundrum. I just received an email from my chum David Ashton who hails from the "Unfinished Continent" Down Under. David's message was short and sweet; all he said ...

Bernard Cole

A Book For All Reasons
Bernard Cole
1 Comment
Robert Oshana's recent book "Software Engineering for Embedded Systems (Newnes/Elsevier)," written and edited with Mark Kraeling, is a 'book for all reasons.' At almost 1,200 pages, it ...

Martin Rowe

Leonard Nimoy, We'll Miss you
Martin Rowe
5 comments
Like many of you, I was saddened to hear the news of Leonard Nimoy's death. His Star Trek character Mr. Spock was an inspiration to many of us who entered technical fields.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Radio
LATEST ARCHIVED BROADCAST
EE Times Senior Technical Editor Martin Rowe will interview EMC engineer Kenneth Wyatt.
Flash Poll