DEVICE SWITCHING USING TELEPHONE LINE
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
mak33
Active In SP
**

Posts: 1
Joined: Jan 2011
#1
07-01-2011, 06:57 AM


I am a 2nd year b.tech student.
I want details about this topic as I am planning to do it as my miniproject and implimentation..

I had submitted my abstract..I prefer to use landphone for the same..
This should employ DTMF technique to switch on/off up to nine appliances
(corresponding to the digits 1 through 9 of the telephone keypad). This can be done even during normal conversation...
Also a microcontroller to know present status(whether working or not)..
Can anyone help me please????
Reply
seminar surveyer
Active In SP
**

Posts: 3,541
Joined: Sep 2010
#2
07-01-2011, 09:41 AM



ABSTRACT
Controlling devices using switches are common. From a few decades controlling devices using remote control switches like infrared remote control switch, wireless remote control switches, light activated switches re becoming popular. But these technologies have their own limitations. Laser beams are harmful to mankind. Some technologies like IR remote control are used for short distance applications. In such case if we have system which does not require any radiations or which is not harmful, long remote control switch!! Yes here is the solution. Here I am introducing such a system which does not require any radiations, any laser beam which has no limitation of range, I mean it can be used from any distance from meters to thousand kilometers using a simple telephone line or mobile phone.
A telephone line-switching device comprises first and second switches that interlock and a lock plate extending between the two switches. The push member of the first switch has a cam with which the lock plate usually engages. The push member of the second switch has an inclined portion on which the lock plate always bears. As the push member of the second switch is depressed, the inclined portion horizontally moves the lock plate, permitting the lock plate to disengage from the cam to release the first switch.


For more:
freepatentsonline4773089.html
docs.googleviewer?a=v&q=cache:RKwQ59EHctUJ:electronicsmakerem/admin/pdf/construction/DEVICE%2520SWITCHING%2520%2520USING%2520TELEPHONE%2520LINES.pdf+DEVICE+SWITCHING+USING+TELEPHONE+LINE&hl=en&gl=in&pid=bl&srcid=ADGEESg9Gp7lCc-3tyCCa-QZ4UHxeSWUWjhS9pchitV9ml_2OQdKs2EEXILAACpOXmn0RUX8j239urWj0UXyhEo13X_kfVIT-uzuJZEJhEKyRDjcw1VVcqPNypOvxQ_OfTKiJ5JzlLpN&sig=AHIEtbRx9pVVxPfKyzAN5zgqVhLWhlfaFw
electrofriendsproject and implimentations/basic-electronics/device-control-using-telephone/



Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  source code for home automation ac dc using tv remote using AT89S52 microcontroller Guest 5 2,285 29-08-2015, 03:40 PM
Last Post: mkaasees
Question VEHICLE ACCIDENT PREVENTION USING EYE BLINK SENSOR USING WIRELESS COMMUNICATION jeeva santhosh 27 23,085 15-01-2014, 11:49 AM
Last Post: seminar project topic
Question telephone directory database in vb.net Guest 1 303 02-09-2013, 09:29 AM
Last Post: study tips
  electronics device for blind mobility aid Guest 1 495 23-08-2013, 09:44 AM
Last Post: study tips
Wink line man security system sauravkne 2 707 04-07-2013, 02:34 PM
Last Post: study tips
  automatic power line fault detector Guest 1 404 24-06-2013, 09:38 AM
Last Post: study tips
  device control by mobile harshsharma94 1 359 03-06-2013, 09:23 AM
Last Post: study tips
  DEVICE CONTROL USING MOBILE PHONE jithuperalam 1 328 29-05-2013, 09:31 AM
Last Post: study tips
  Telephone incoming call detector Guest 0 407 07-04-2013, 09:50 PM
Last Post: Guest
  anti collision device and automatic gate controling of railway Guest 0 597 01-04-2013, 08:41 PM
Last Post: Guest