System and method for locating a mobile node in a network
First Claim
1. A system for locating a mobile node in a network, comprising:
- a plurality of beacon nodes, each of said plurality of beacon nodes broadcasting at least a beacon signal on a first channel;
at least a router;
a location host; and
at least a mobile node for receiving said at least a beacon signal;
wherein each of said plurality of beacon nodes receives a plurality of beacon signals, and transmits a corresponding packet information on a second channel through said at least a router to said location host, and according to said packet information, said location host computes the corresponding location information of said mobile node.
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Abstract
Disclosed is a system and method for locating a mobile node in a network. The system comprises a plurality of beacon nodes, at least a router, a location host, and at least a mobile node. Each beacon node broadcasts at least a beacon signal at a first channel. A mobile node receives a plurality of beacon signals, and sends a corresponding packet'"'"'s information to the location host at a second channel through a router. According to the packet'"'"'s information, the location host may compute the location for the mobile node. This system distributes the communication loading to different groups and channels, which may estimate the locations for lots of mobile nodes at the same time, and gives a high communication quality and a good location estimation result.
37 Citations
19 Claims
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1. A system for locating a mobile node in a network, comprising:
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a plurality of beacon nodes, each of said plurality of beacon nodes broadcasting at least a beacon signal on a first channel; at least a router; a location host; and at least a mobile node for receiving said at least a beacon signal; wherein each of said plurality of beacon nodes receives a plurality of beacon signals, and transmits a corresponding packet information on a second channel through said at least a router to said location host, and according to said packet information, said location host computes the corresponding location information of said mobile node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for locating a mobile node in a network, comprising:
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each of a plurality of beacon nodes broadcasting at least a beacon packet on a first channel; a mobile node on said first channel, receiving said packets broadcast by said plurality of beacon nodes, and obtaining at least three receive signal strength indication (RSSI) values from said packets; through at least a router, transferring the information of a corresponding locating packet to a location host via a second channel; and according to said corresponding packet information, said location host estimating location information of said mobile node. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification