Positional information storage and retrieval system and method
First Claim
1. A system for storing and retrieving positional information of a subject wearing a positional detection unit and moving within an operating environment of the system comprising:
- a positional detection unit adapted to receiving signals including coordinate information, to process said coordinate information to generate positional information including a position fix of the positional detection unit, and to transmit said positional information at varying time intervals as determined by magnitudes of said signals and changes in a position of said positional detection unit within the operating environment;
a plurality of receiver/transmitter units (R/T units) adapted to transmit said signals including coordinate information and to receive and transmit said positional information; and
a processor unit adapted to receive said positional information from said plurality of R/T units and to process said positional information to track an absolute position of said positional detection unit within the operating environment.
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Accused Products
Abstract
A positional information storage and retrieval system includes a positional detection unit transmitting positional information of at least one subject moving within an operational environment of the system, a plurality of receiver/transmitter units and a processor unit. Coordinate information of the receiver/transmitter units is received by the positional information unit and used to determine the positional information according to triangulation or other techniques embodied within the positional detection unit. The positional information is transmitted to the receiver/transmitter units which, in turn, transmit the positional information to the processor unit. A method for designing such a system includes selecting operational frequencies of the receiver/transmitter units and positioning the receiver/transmitter units throughout the operational environment such that distortion and attenuation of the positional information are minimized. Algorithms embodied within the processor unit generate, update and control access to a data base of information relating to locations of the subjects within the operational environment over time.
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Citations
10 Claims
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1. A system for storing and retrieving positional information of a subject wearing a positional detection unit and moving within an operating environment of the system comprising:
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a positional detection unit adapted to receiving signals including coordinate information, to process said coordinate information to generate positional information including a position fix of the positional detection unit, and to transmit said positional information at varying time intervals as determined by magnitudes of said signals and changes in a position of said positional detection unit within the operating environment; a plurality of receiver/transmitter units (R/T units) adapted to transmit said signals including coordinate information and to receive and transmit said positional information; and a processor unit adapted to receive said positional information from said plurality of R/T units and to process said positional information to track an absolute position of said positional detection unit within the operating environment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for storing and retrieving positional information of at least one subject moving within an environment comprising:
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a positional detection unit secured to at least one subject, said positional detection unit being adapted to receive signals including coordinate information, to process said coordinate information to generate encrypted positional information including a position fix of the positional detection unit, and to transmit said encrypted positional information at varying time intervals as determined by magnitudes of said signals and changes in a position of said positional detection unit within the operating environment; a plurality of receiver/transmitter units (R/T units) adapted to transmit said signals including coordinate information and to receive and transmit said encrypted positional information, operating frequencies of said R/T units being selected and said R/T units being positioned throughout the operating environment such that distortion and attenuation of said encrypted positional information are minimized; and a processor/memory unit adapted to receive said encrypted positional information over time from said R/T units, to track a location of each subject over time, to store said location of each subject over time, and to determine which, if any, subject was near a selected location near any point in time, said processor/memory unit including a query module adapted to enable a user of the system to provide user inputs to the system including a date, time and location of a crime and to request a system output indicating which of said subjects were near said crime location near said date and time of said crime.
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Specification