EP 0487420 B1 19971105 - System to localize persons and/or objects in a controlled zone
Title (en)
System to localize persons and/or objects in a controlled zone
Title (de)
Personen- und/oder Objektlokalisierungssystem in einer überwachten Zone
Title (fr)
Système de localisation de personnes et/ou d'objets dans une zone surveillée
Publication
Application
Priority
FR 9014524 A 19901121
Abstract (en)
[origin: EP0487420A1] A system to localise persons and/or objects in a controlled zone (120) comprising a management unit (200) for receiving localisation commands, a plurality of detectors (300) linked to the management unit (200) and distributed in the controlled zone, a plurality of portable equipment items (400) carried by the persons and/or objects to be localised. The detectors (300) communicate with the portable equipment items by exchange of coded signals in response to a localisation command. When a portable equipment item is activated by a first coded signal sent by a detector, it transmits to this detector a second coded signal representative of its particular identification code in order to be localised by the management unit. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
G07C 9/28 (2020.01); G08B 3/1083 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0487420 A1 19920527; EP 0487420 B1 19971105; AT E160041 T1 19971115; DE 69128126 D1 19971211; DE 69128126 T2 19980305; ES 2110434 T3 19980216; FR 2669454 A1 19920522; FR 2669454 B1 19950602
DOCDB simple family (application)
EP 91403142 A 19911121; AT 91403142 T 19911121; DE 69128126 T 19911121; ES 91403142 T 19911121; FR 9014524 A 19901121