System for three dimensional positioning and tracking with dynamic range extension
First Claim
1. A tracking and positioning system comprising:
- a plurality of transmitters distributed within a working space;
at least one sensors attached to at least one moving object and operative to sense transmissions arriving from said plurality of transmitters; and
a dynamic transmission activator operative to track at least one position parameters of at least one of said sensors and to selectively activate and deactivate individual sets of at least one transmitters from among said plurality of transmitters, at least partly responsively to at least one position parameters of at least one of said sensors.
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Accused Products
Abstract
This invention discloses a tracking and positioning system including a plurality of transmitters distributed within a working space, and at least one sensors attached to at least one moving object and operative to sense transmissions arriving from the plurality of transmitters, a dynamic transmission activator operative to track at least one position parameters of at least one of said sensors and to selectively activate and deactivate individual sets of at least one transmitters from among the plurality of transmitters, at least partly responsively to at leas one position parameters of at least one of the sensors.
A tracking method for tracking a moving object whose initial position is substantially unknown is also disclosed.
138 Citations
13 Claims
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1. A tracking and positioning system comprising:
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a plurality of transmitters distributed within a working space;
at least one sensors attached to at least one moving object and operative to sense transmissions arriving from said plurality of transmitters; and
a dynamic transmission activator operative to track at least one position parameters of at least one of said sensors and to selectively activate and deactivate individual sets of at least one transmitters from among said plurality of transmitters, at least partly responsively to at least one position parameters of at least one of said sensors. - View Dependent Claims (2, 3)
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4. A tracking method for tracking a moving object whose initial position is substantially unknown, the method comprising:
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using a genetic algorithm to initially position the moving object; and
tracking the moving object using a Kalman filter tracking method. - View Dependent Claims (5, 6, 7)
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8. A tracking and positioning system comprising:
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a Kalman filter receiving input representing electromagnetic signals characterizing the position of a moving object and operative to track and position a moving object with an accuracy which is affected by abrupt changes in the electromagnetic environment;
an environmental monitor operative to monitor for abrupt changes in the electromagnetic environment which are detrimental to the accuracy of the Kalman filter and to generate an output signal representative of occurrence of an abrupt change; and
a complementary tracking and positioning unit operative to receive said output signal and selectively activated for a limited period responsive to the output signal. - View Dependent Claims (9, 10, 11, 12, 13)
a plurality of transmitters distributed within a working space;
at least one sensors attached to at least one moving object and operative to sense transmissions arriving from said plurality of transmitters; and
a dynamic transmission activator operative to track at least one position parameters of at least one of said sensors and to selectively activate and deactivate individual sets of at least one transmitters from among said plurality of transmitters, at least partly responsively to at least one position parameters of at least one of said sensors, and wherein the environmental monitor is operative to monitor for activation and deactivation of transmitters.
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Specification