Monitoring location and tracking system
OwnerCharles M. Wohlinventor
Life of this patent
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Abstract
The location systems are made up of a monitoring and control center, repeaters and tags. System communications are preferably at frequencies in the 900 MHz band. The center and computers utilize both commercial and custom software developed for use in and by the system. The center, repeaters and tags can also include a sensor(s) and a panic “switch” and/or other informational input mechanism(s). The coordinates of the repeaters and control station transmitters are stored in tag memory. The location of the tag(s) in time and space is by use of the stored coordinates in memory and by calculations based on time phase measurements of transmissions from the control center an/or the repeaters.
Claims16
In a system including tags for monitoring at least one of the locating, identifying, counting or controlling animals and/or objects, repeaters and a center for maintaining, controlling and/or locating the animals and objects in time and space for the purpose of determining the locations, numbers rate of movement, if any, and projected movement rate or movement within monitored area, the improvement comprising:
- at least one tag comprising a transceiver, a microprocessor and, in permanent microprocessor memory, data representing the positions of the repeaters and center transmitter/receiver in and/or around the monitored area, and custom software having the functions necessary to calculate, from the elapsed time and change of phase between the signals transmitted to each of the at least one tag by the transmitter receiver and/or the repeaters, the position within the system of the at least on tag(s) and to implement the transmission of the calculated position of the at least on tag(s) to the transmitter/receiver and/or to the repeaters.
Dependencies are inferred from the claim text.