초록 ▼

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

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.

대표청구항 ▼

[ What is claimed is:] [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 pr

[ What is claimed is:] [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; anda 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.