EP 1389368 A4 20060104 - NETWORK FORMATION IN ASSET TRACKING SYSTEM BASED ON ASSET CLASS
Title (en)
NETWORK FORMATION IN ASSET TRACKING SYSTEM BASED ON ASSET CLASS
Title (de)
NETZWERKAUSBILDUNG IN EINEM ASSET-TRACKING-SYSTEM AUF DER GRUNDLAGE DER ASSET-KLASSE
Title (fr)
FORMATION DE RESEAUX EN SYSTEME DE SUIVI DE BIENS EN FONCTION DE LA CLASSE DE BIENS
Publication
Application
Priority
- US 0149513 W 20011226
- US 25739800 P 20001222
- US 25763700 P 20001222
Abstract (en)
[origin: WO03032501A2] A plurality of wireless transceivers are associated with assets and each transceiver is assigned a class designation representative of an attribute, characteristic, relation, or behavior of its respective asset. Class based network formation routines are utilized to establish hierarchical networks based on asset classes, and the asset class is used by each transceiver to screen communications intended for receipt by transceivers of the same class. The overall wireless data communication network results in reduced power consumption and signal interference in asset-tracking applications. The transceivers may include a query handling routine for forming a dynamically distributed hierarchical database system. Furthermore, a recipient transceiver selectively receives communications from other local transceivers by transmitting at incrementally stronger power levels to successive groups of transceivers, and receiving reply transmissions only from a limited number of the transceivers that excludes those transceivers from which communications already are received.
IPC 1-7
IPC 8 full level
G07C 9/00 (2006.01); H04L 12/28 (2006.01); H04L 12/56 (2006.01); H04L 29/08 (2006.01); G01S 5/14 (2006.01); G06K 17/00 (2006.01)
CPC (source: EP)
G07C 9/28 (2020.01); H04L 67/14 (2013.01); H04L 69/329 (2013.01); G01S 5/14 (2013.01)
Citation (search report)
- [XA] EP 0829995 A2 19980318 - SPHERE COMMUNICATIONS INC [US]
- [A] EP 0748085 A1 19961211 - GEN ELECTRIC [US]
- [A] US 5295154 A 19940315 - MEIER ROBERT C [US], et al
- [A] EP 0748083 A1 19961211 - GEN ELECTRIC [US]
- [A] US 5682379 A 19971028 - MAHANY RONALD L [US], et al
- [A] WO 0069186 A1 20001116 - ERICSSON TELEFON AB L M [SE]
- See references of WO 03032501A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03032501 A2 20030417; WO 03032501 A3 20031204; AU 2001298037 A1 20030422; EP 1389368 A2 20040218; EP 1389368 A4 20060104
DOCDB simple family (application)
US 0149513 W 20011226; AU 2001298037 A 20011226; EP 01274467 A 20011226