Title:
ワイヤレス照明の割り当てのための壁の発見
Document Type and Number:
Japanese Patent JP2008533660
Kind Code:
A
Abstract:
A method for determining the location of partition walls within a building uses a wirelessly interconnected network of nodes to determine relative spatial positions of selected nodes using (i) received signal strength indication (RSSI) values and time of flight (ToF) values, both indicative of a distance of separation between two communicating nodes. A first map of the network topology is derived from the RSSI values and a second map of the network topology is derived from the ToF values. The RSSI values are affected by building partition walls whereas the ToF values are relatively unaffected by partition walls. A comparison of the first and second maps is used to determine the location of partition walls within the building.
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Inventors:
Pichels Stefan M
Simmons Paul Earl
Simmons Paul Earl
Application Number:
JP2008500326A
Publication Date:
August 21, 2008
Filing Date:
March 08, 2006
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H05B37/02; H04Q9/00; G01S5/02
Domestic Patent References:
| JPH1127734A | 1999-01-29 | |||
| JPH1084571A | 1998-03-31 | |||
| JP2000284040A | 2000-10-13 |
Attorney, Agent or Firm:
Susumu Tsugaru
Akihiko Miyazaki
Fueda Shusen
Akihiko Miyazaki
Fueda Shusen