Global Patent Index - EP 0559357 A1

EP 0559357 A1 19930908 - Monitoring system.

Title (en)

Monitoring system.

Title (de)

Überwachungssystem.

Title (fr)

Système de surveillance.

Publication

EP 0559357 A1 19930908

Application

EP 93301284 A 19930222

Priority

ZA 921621 A 19920304

Abstract (en)

A monitoring apparatus and a method of monitoring a zone are disclosed. A plurality of beams (14) are transmitted between at least two locations (12.2,12.2) defining extremities of the zone. Interruptions of the beams (14) caused by an object moving between the two locations are detected by sensing means and a graph of the interruptions relative to time is generated. The graph generated is compared with a set of preselected graphs representative of known objects stored in storage means (34). <IMAGE>

IPC 1-7

G08B 13/183

IPC 8 full level

G07C 9/00 (2006.01); G08B 13/183 (2006.01)

CPC (source: EP)

G07C 9/00 (2013.01); G08B 13/183 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0559357 A1 19930908; ZA 929406 B 19930927

DOCDB simple family (application)

EP 93301284 A 19930222; ZA 929406 A 19921203