Remote sensing systems

Details Remote sensing systems Remote sensing systems

H - Electricity

04

B

325/41

H04B 7/24 (2006.01) G08B 25/10 (2006.01) G08B 26/00 (2006.01)

Patent

CA 1247198

ABSTRACT OF THE DISCLOSURE A security installation comprises sensors arranged in and around a building which transmit digital information to a central station by radio, in each case preceded by an access code specific to the particular installation; signals inadvertently received from the sensors of an adjacent installation are rejected. The information is transmitted by encoding a multiple bit word incorporating the access code, a code identifying the particular sensor, and the actual data, using Manchester II coding on an FSK transmission. Each such word is sent several times to form a data packet. The master station tests the received data for the correct format and for the correct access code. Recognition is only complete when within a particular packet, at least two (say) sequential words and at least two other words are recognised.

442409

Affiliated with

Also associated with

Rating

Remote sensing systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Remote sensing systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remote sensing systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1260195