Tracking and accountability device and system
First Claim
1. A communication system comprising:
- a command unit coupled to a wireless communication network;
a processing unit coupled to the wireless communication network;
a first personal tracking unit (PTU) having a first mobile transceiver in communication with the wireless communication network, the first PTU coupled to a device having a first set of user identification data of a first individual, the first PTU being operative to transmit signals representing the first individual'"'"'s location over the wireless communication network to the processing unit; and
a second PTU having a second mobile transceiver, the second PTU coupled to a second set of user identification data of a second individual and being operative to transmit signals representing the second individual'"'"'s location (i) to the processing unit over the wireless communication network if the second PTU is within a first distance; and
(ii) to the first PTU if the second PTU is within the first distance to the first PTU, wherein the processing unit couples a plurality of location data points received from the first and second PTUs within a structure to generate a map of the structure, and wherein a portion of the map of the structure is selected based on the plurality of location data points received from the first and second PTUs and transmitted from the processing unit to the PTU within that portion.
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Accused Products
Abstract
A tracking and accountability system and apparatus is provided and comprises a command unit and processing unit coupled to a wireless communication network, a first tracking device having a first mobile transceiver in communication with the wireless communication network and coupled to a first set of identification data of a first individual and being operative to transmit signals representing the first individual'"'"'s location over the wireless communication network to the processing unit, and a second tracking device having a second mobile transceiver and coupled to a second set of identification data of a second individual and being operative to transmit signals representing the second individual'"'"'s location (i) to the processing unit over the wireless communication network if the second tracking device is within a first distance; and (ii) to the first tracking device if the second tracking device is within the first distance to the first tracking device.
48 Citations
23 Claims
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1. A communication system comprising:
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a command unit coupled to a wireless communication network; a processing unit coupled to the wireless communication network; a first personal tracking unit (PTU) having a first mobile transceiver in communication with the wireless communication network, the first PTU coupled to a device having a first set of user identification data of a first individual, the first PTU being operative to transmit signals representing the first individual'"'"'s location over the wireless communication network to the processing unit; and a second PTU having a second mobile transceiver, the second PTU coupled to a second set of user identification data of a second individual and being operative to transmit signals representing the second individual'"'"'s location (i) to the processing unit over the wireless communication network if the second PTU is within a first distance; and
(ii) to the first PTU if the second PTU is within the first distance to the first PTU, wherein the processing unit couples a plurality of location data points received from the first and second PTUs within a structure to generate a map of the structure, and wherein a portion of the map of the structure is selected based on the plurality of location data points received from the first and second PTUs and transmitted from the processing unit to the PTU within that portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A communication system comprising:
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a command unit coupled to a wireless communication network; a processing unit coupled to the wireless communication network; a first personal tracking unit (PTU) comprising (i) at least two of a GPS, an IMU, a magnetometer, a radio location sensor; and
(ii) a first mobile transceiver in communication with the wireless communication network, wherein the first PTU is coupled to a device having a first set of user identification data of a first individual, the first PTU being operative to transmit signals representing the first individual'"'"'s location over the wireless communication network to the processing unit, and wherein a location estimate of the first PTU is determined based on the information obtained from at least two of the GPS, IMU, magnetometer, and radio location sensor;a second PTU having a second mobile transceiver, the second PTU coupled to a second set of user identification data of a second individual and being operative to transmit signals representing the second individual'"'"'s location (i) to the processing unit over the wireless communication network if the second PTU is within a first distance; and
(ii) to the first PTU if the second PTU is within the first distance to the first PTU and wherein the processing unit couples a plurality of location data points received from the first and second PTUs within a structure to generate a map of the structure, and wherein a portion of the map of the structure is selected based on the plurality of location data points received from the first and second PTUs and transmitted from the processing unit to the first or second PTU within that portion; andan Earth Magnetic Field (EMF) map, wherein the location estimate of the first PTU is used to select a portion of the EMF map. - View Dependent Claims (21)
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22. A method of determining a location of an individual in a building comprising the steps of:
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coupling each of a first and second personal tracking unit (PTU) each having a unique identification number, to a set of user identification data of a first and second individual stored on a separate device; transmitting the unique identification numbers of the first and second PTUs and the sets of user identification data of each individual to a processing unit; performing location measurements by at least one of an IMU and a radio location sensor located in the first PTU and in the second PTU; transmitting the location measurements to the processing unit; determining a location estimate of the first and second individuals based on the location measurements received by the processing unit; coupling the location estimates received from the first and second PTUs within a structure to generate a map of the structure; selecting a portion of the map of the structure based on the plurality of location estimates received from the first and second PTUs; accessing a Earth'"'"'s Magnetic Field (EMF) map; selecting a portion of an Earth'"'"'s Magnetic Field (EMF) map based on the location estimate of the first PTU; performing EMF measurements by a positioning device located in the first PTU; comparing the EMF measurements to the selected portion of the EMF map; determining the location of the individual coupled to the first PTU; and transmitting to the first PTU the portion of the map of the structure corresponding to the location of the individual coupled to the first PTU. - View Dependent Claims (23)
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Specification