Discussion in "New Ideas regarding projects" started by    SANATH MCX    Oct 1, 2008.
Wed Oct 01 2008, 11:29 AM
Hi to all,

I want to design the Power Theft Detector. Can anybody help me on this.

Regards
Sanath
Pune
Fri Oct 03 2008, 05:19 AM
I think using TDR which is known as Time Domain Reflectometry we can detect the power theft and also locate the position of power theft. But the problem is how to design the TDR System.
Fri Oct 03 2008, 07:28 PM
i have no idea about TDR
Sat Oct 04 2008, 10:03 AM
Thanx Ajay for the Reply :-) :-) :-)

Ok ..... First let me tell about the TDR. it is very simple

( Time domain Reflectometry) is a widely used technique to find the fault occurrence in cable. and the instrument is called as Time Domain Reflectometer or Cable Radar or Echo Meter.In this
1. Sending a well defined voltage pulse down to the Testing line and waiting for the echo. 2. Displaying the sending pulse and echo on Fast oscilloscope screen
3. Analyzing the characteristics of Echo such as Shape of the waveform, Direction, Impedance, Magnitude of the pulse.
4. Measuring the Echo time to find the cable length or distance to fault.

and following are the parameters included this
1. Rise Time of the Pulse
2. Pulse width
3. The amplitude of the Pulse
4. Impedance over the cable
5. PVF ( Velocity of Pulse)

I hope the above details have given clear idea about the TDR

[lightbox=image_url|title|group|float]http://rapidshare.com/files/150797434/01_Outstanding_TDRs.pdf[/lightbox]

Now my problem is How we can design the TDR System and How we can make use of this TDR Technique in Embedded system for the Power Theft Detection and Location Over the Transformer Lines which I feel one of the great challenging tasks in the Present scenorio.

Can anyone help me on this.

Regards
Sanath
Pune

Email: [email protected]

Mon Oct 06 2008, 12:08 PM
Hi to all,

I think I need to put the end for the TDR ( Time Domain Reflectometry)

let me have one more idea for this
we know DTMF ( Dual Tone Multi-frequency ) which can be sent over the electric power lines for the communication i.e switching of device ( which is called as Device switching via DTMF) by making use of of DTMF Encoder and DTMF decoder like HT9170.
So can we make of the above technique with some other modifications for the power theft detection. please help me on this.

Regards
Sanath
Pune

Email: [email protected]
Mon Oct 06 2008, 08:02 PM

Hi to all,

I think I need to put the end for the TDR ( Time Domain Reflectometry)

let me have one more idea for this
we know DTMF ( Dual Tone Multi-frequency ) which can be sent over the electric power lines for the communication i.e switching of device ( which is called as Device switching via DTMF) by making use of of DTMF Encoder and DTMF decoder like HT9170.
So can we make of the above technique with some other modifications for the power theft detection. please help me on this.

SANATH EMBEDDED

I think TDR *is* the way to go, but it seems you are the expert around here
Any method that works is likely to specialised and complex, I think you will just have to
invest in some expensive test gear and good books,
sorry

Tue Oct 07 2008, 05:55 AM

While going through the TDR concepts I got stuck in below condition.

For the TDR to work the Cable should be Metallic and atleast two conductors insulated from each other.

Sanath
Pune

Email: [email protected]
Tue Oct 07 2008, 06:13 AM
I think it just means metallic conductors.. ie copper.
You need at least two conductors to look for unusual
interactions between them.

[ Edited Tue Oct 07 2008, 06:15 AM ]
Tue Oct 07 2008, 07:22 AM
Hi Experiment UK,

Ok .... Let me take the example of Electric transformer power lines.
it has got two lines ( Metallic conductors) one is Phase and another one is Neutral.
which are insulated from each other. Is it right or not....

Regards
Sanath
Pune

Email: [email protected]
Tue Oct 07 2008, 07:35 AM

Hi Experiment UK,

Ok .... Let me take the example of Electric transformer power lines.
it has got two lines ( Metallic conductors) one is Phase and another one is Neutral.
which are insulated from each other. Is it right or not....

Regards
Sanath
Pune

Email: [email protected]

SANATH EMBEDDED

Yes that would be correct, as long as the two lines are together in a cable,
and not six feet apart on big pot insulators

I think working with high power systems may make a difficult job
even harder, and rather dangerous.

### Information

#### Conversation

Wed Apr 15 2015, 05:07 PM
@Bibek.. and everyone. Create threads if you need help. The chat box is just for chat
Wed Apr 15 2015, 05:06 PM
@mohd atif ..login..create a post/thread,then I can post a copy of the missing file
Mon Apr 13 2015, 07:03 PM
mohd atif
@experimenteruk I didn't get you
Sun Apr 12 2015, 04:18 AM
Bibek
hello, i have made a digital clock using rtc DS12887 and AT89S52 with date n callender. Now i want to add alarm features to it.....can any body help me with the code in assembly language
Sun Apr 12 2015, 03:22 AM
SANJU123
Hello, I am planning to do simulaton of the ' 4-way traffic controller'. As a first stage of the project, I tried to compile the code given in this website in keil microvision which controls 4-way traffic . I am using AT89C51. But when I am trying to compile the code it shows an error " Device is not supported by Toolchain". Can u please help me...
Sat Apr 11 2015, 02:06 AM
Suryamoy Mondal
There is a little bit confusion to connect the rs232 connector to max232 ..By continuty test i cant able to find , which wire from the other side of the RS232 connector , i connect to max232..is there any colour coding?
Fri Apr 10 2015, 06:19 PM
@Suryamoy, The PC control software is provided within the package. Follow the steps to install and test it.
Fri Apr 10 2015, 05:24 PM
Suryamoy Mondal
my final year btech project is pc remote control..i have made the hardware and microcontroller prograaming from yours project..bt i cant able to implement in PC..so wht kind of software need for pc to access this..please sir reply me ..i need your help
Wed Apr 08 2015, 04:46 PM
@mohd atif If you create a thread, I may be able help
Tue Apr 07 2015, 03:59 PM
mohd atif
i am working on a project evm. i download the evm project from this site named Electronic Voting machine with Managed Control Unit . i face problem in this when i am trying to simulate this on proteus . there is an error " could not open MODDATA initializer file mem.bin" please help me to get out this problem

### Recent

lumines
Sat Apr 18 2015, 11:30 PM
[email protected]
Sat Apr 18 2015, 05:02 PM
arvindarunoday
Sat Apr 18 2015, 04:26 PM
samarhbk
Sat Apr 18 2015, 12:57 PM
chitty789
Tue Apr 14 2015, 06:14 PM
yaseenshaikh
Tue Apr 14 2015, 03:41 PM
sanju123
Mon Apr 13 2015, 03:51 PM
Wed Apr 08 2015, 07:02 PM

#### Online

Guests: 43, Members: 0 ...

most ever online: 182184
(Members: , Guests: 182184) on 06 Aug 2010: 05:37 AM

Members: 37626
Forum Activity
##### Posted By sanju123
Sun Apr 19 2015, 04:56 AM
Thanks rickey...I have reinstalled version.. Pro...
##### Posted By lumines
Sun Apr 19 2015, 12:19 AM
Dear everyone,We are currently looking for an embe...
##### Posted By [email protected] /* <![CDATA[ */!function(){try{var t="currentScript"in document?document.currentScript:function(){for(var t=document.getElementsByTagName("script"),e=t.length;e--;)if(t[e].getAttribute("cf-hash"))return t[e]}();if(t&&t.previousSibling){var e,r,n,i,c=t.previousSibling,a=c.getAttribute("data-cfemail");if(a){for(e="",r=parseInt(a.substr(0,2),16),n=2;a.length-n;n+=2)i=parseInt(a.substr(n,2),16)^r,e+=String.fromCharCode(i);e=document.createTextNode(e),c.parentNode.replaceChild(e,c)}}}catch(u){}}();/* ]]> */
Sat Apr 18 2015, 05:07 PM
I want this code to be programmed in arduino uno b...
##### Posted By gaurav7577
Fri Apr 17 2015, 03:26 PM
thanks ajay for ur concern .....passed out B.E.......
##### Posted By ajay_bhargav
Fri Apr 17 2015, 12:49 PM
can you post screenshot or a picture of CRO output...
##### Posted By ajay_bhargav
Fri Apr 17 2015, 12:45 PM
are you in a college or working?
##### Posted By ajay_bhargav
Fri Apr 17 2015, 12:44 PM
GSM modem needs a power supply with minimum 2A pea...
##### Posted By ajay_bhargav
Fri Apr 17 2015, 12:41 PM
check it on CRO with 10x probes, you will see a si...
##### Posted By mayank058
Fri Apr 17 2015, 11:03 AM
The output was low in the scope and I am using MCB...
##### Posted By gaurav7577
Fri Apr 17 2015, 10:13 AM
Hello friends, i wanna do embedded course ...