Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
Page 1 / 2   >   >>
DrFPGA
User Rank
Author
Regular roadways
DrFPGA   8/29/2014 7:22:27 PM
NO RATINGS
If we can do this for regular roadways then the robot pot hole fillers can be easily dispatched.

DrFPGA
User Rank
Author
Re: LED Testers ATTN : EDITOR
DrFPGA   8/29/2014 7:21:15 PM
NO RATINGS
Thanx for spotting these. We need to make sure Max doesn't think we are removing his comments however...

DrQuine
User Rank
Author
Learning from Laser Scanning of Tracks
DrQuine   8/22/2014 1:43:44 PM
NO RATINGS
I'm interested in the kind of information that the scanning system can obtain.  The image looks like a monochrome (green) image of the scene. Obviously this could be useful if the tracks had been sabotaged or suffered gross damage such as the bed being washed out by a flood, missing rail spikes, or severe physical damage to the rail. Does this technology have any value in detecting progressive material failures? Which of the failure modes that require repair can it detect? 

Sanjib.A
User Rank
Author
Re: Pilot engines
Sanjib.A   8/21/2014 11:48:22 AM
NO RATINGS
@prabhakar_deosthali: "...This practice is followed only  for select trains running in sensitive areas where the incidents of manual disruption of rail tracks have happend in the past..."

Okay I understand the context which you described earlier. I did not know that such arrangement was made due to unfortunate miscreants caused by anti-socials. Good to know that this practice saves many lives, for which the cost of running an extra engine for certain trains in certain areas is insignificant.

prabhakar_deosthali
User Rank
Author
Re: Pilot engines
prabhakar_deosthali   8/21/2014 1:37:59 AM
NO RATINGS
@Sanjib

 

It is true that such an option can be expensive.

This practice is followed only  for select trains running in sensitive areas where the incidents of manual disruption of rail tracks have happend in the past.

Just last month a major train accident was averted by such a pilot engine . A section of the track had been blown aprt by explosives and the pilot engine completely derailed while going over it. But it averted a major accident for the train which was to run on that track an hour later.

 

What you have seen in your childhod is right - those small inspection carts can do this job but they are slow speed and can hinder the high speed train trafiic.

 

With the kind of laser scanning talked about in this blog a simplified light weight but high spped tracking by an unmanned light vehicle can be a possible solution.

 

 

 

salbayeng
User Rank
Author
Eye safe?
salbayeng   8/21/2014 12:15:29 AM
NO RATINGS
re: "Utilizing an eye-safe infrared laser (class I), "

That's certainly reassuring to know if I was lying between the tracks, looking up at a passing train that my eyes wouldn't be damaged by laser beams.

 

Sanjib.A
User Rank
Author
Re: Pilot engines
Sanjib.A   8/20/2014 10:37:16 PM
NO RATINGS
@prabhakar_deosthali: "...a pilot engine runs ahead of the train to ensure that there is no track fault or any other obstruction.."

Is that what followed in India? I do not have much idea, but I think that would be a costly affair as an engine per one high speed train would be engaged all that time just to monitor cracks. I have seen a small four wheeled cart carrying people and pushed by a couple of persons slowly on the tracks in my childhood. I believe that was used earlier to monitor the tracks manually long time back. It was done for each sections of every division...can't imagine the number of people engaged into this. Now a days I believe a specialized track monitoring car is used as shown in the link below:

http://www.rdso.indianrailways.gov.in/view_section.jsp?lang=0&id=0,2,465


With this laser based device mounted on the engines (may not be for all) of regular trains for scanning the tracks it would be possible to get rid of those special monitoring vehicles or manual effort. Also the scanning could be done much more frequently that it is currently done. Great piece of equipment.  

Max The Magnificent
User Rank
Author
Re: LED Testers ATTN : EDITOR
Max The Magnificent   8/20/2014 4:03:40 PM
NO RATINGS
@Susan: I removed the comment.

What comment?

Susan Rambo
User Rank
Author
Re: LED Testers ATTN : EDITOR
Susan Rambo   8/20/2014 3:58:32 PM
NO RATINGS
Thanks. I removed the comment.

zeeglen
User Rank
Author
Re: Pilot engines
zeeglen   8/20/2014 1:56:15 AM
NO RATINGS
@prabhakar a pilot engine runs ahead of the train

Now that is a really good idea.


Page 1 / 2   >   >>


Radio
NEXT UPCOMING BROADCAST
In conjunction with unveiling of EE Times’ Silicon 60 list, journalist & Silicon 60 researcher Peter Clarke hosts a conversation on startups in the electronics industry. One of Silicon Valley's great contributions to the world has been the demonstration of how the application of entrepreneurship and venture capital to electronics and semiconductor hardware can create wealth with developments in semiconductors, displays, design automation, MEMS and across the breadth of hardware developments. But in recent years concerns have been raised that traditional venture capital has turned its back on hardware-related startups in favor of software and Internet applications and services. Panelists from incubators join Peter Clarke in debate.
Most Recent Comments
resistion
 
resistion
 
resistion
 
resistion
 
Ron Neale
 
resistion
 
resistion
 
resistion
 
R_Colin_Johnson
Most Recent Messages
8/29/2015
8:48:52 AM
Flash Poll
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)
Special Video Section
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
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 ...