Portable multi-tracking method and system
First Claim
1. A multi-tracking method, comprising the steps of (a) providing a plurality of portable multi-tracking units, wherein one of said portable multi-tracking units acts as a host unit while the other portable multi-tracking units act as client units;
- (b) providing host position data of said host unit by a positioning unit of said host unit;
(c) receiving client position data and client identifications of said client units through a wireless communication public network, so as to provide said host unit with client locations of said client units; and
(d) sending said host position data and a host identification of said host unit via said wireless communication public network, so as to provide said other client units with a host location of said host unit.
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Abstract
A method and system for multi-tracking among independent individuals without a monitoring center, where an individual is a person, a vehicle, or any other property, enables the individuals to be networked in a group and each individual to search and track other individuals of interest. The portable multi-tracking system is also capable of tracking personnel inside a building, where a self-contained positioning device provides continuous carrier'"'"'s position information. In the open area a GPS (Global Positioning System) unit is activated to provide precision absolute position data which can be blended with the self-contained data to improve the accuracy and robustness of the positioning services. Thus the present invention provides excellent position tracking outside a building.
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Citations
62 Claims
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1. A multi-tracking method, comprising the steps of
(a) providing a plurality of portable multi-tracking units, wherein one of said portable multi-tracking units acts as a host unit while the other portable multi-tracking units act as client units; -
(b) providing host position data of said host unit by a positioning unit of said host unit;
(c) receiving client position data and client identifications of said client units through a wireless communication public network, so as to provide said host unit with client locations of said client units; and
(d) sending said host position data and a host identification of said host unit via said wireless communication public network, so as to provide said other client units with a host location of said host unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A portable multi-tracking system, comprising:
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a system processor;
a positioning unit, which is connected to said system processor, providing current host position data of said portable multi-tracking system, wherein said position data includes position, velocity, and heading of said portable multi-tracking system;
a storage device, which is connected to said system processor, storing an electronic map database and other interim data including said host position data and a host identification, wherein map data is capable of being retrieved by said system processor from said electronic map database of said storage device;
a wireless communication module, which is connected with said system processor, for receiving client position data and client identifications of other client portable multi-tracking systems which are linked with said portable multi-tracking system through a wireless communication public network, and sending said host position data and said host identification through said wireless communication public network to said other client portable multi-tracking systems, so as to provide said portable multi-tracking system with client position data of said other client portable multi-tracking system, and to provide said other client portable multi-tracking system with said host position data of said portable multi-tracking system; and
a display device, which is connected to said system processor, for displaying said map data in form of a map, wherein said map data is retrieved by said system processor from said storage device, moreover said host position data and said client position data are processed in said system processor to form a current host location and client locations respectively, which are overlayingly displayed on said map displayed on said display device.
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37. The portable multi-tracking system, as recited in
claim 37 , wherein said wireless communication module is also arranged for broadcasting said client position data received from said client portable multi-tracking systems.
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46. The portable multi-tracking system, as recited in
claim 46 , wherein said wireless communication module further comprises an antenna for converting an analogue signal into a radiative signal and converting a detected radiative signal from each of said client portable multi-tracking systems into an analogue signal which is suitable for said wireless communication module to process.
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59. The portable multi-tracking system, as recited in
claim 59 , wherein said wireless tracker module further updates said tracking status of said client portable multi-tracking systems of interest at a constant period, alerts when losing track of a specific one of said client portable multi-tracking systems of interest, and alerts for potential collision between said portable multi-tracking system and any of said client portable multi-tracking systems when said multi-tracking system and said client portable multi-tracking systems are carried in aircrafts.
Specification