Autonomous reference system and method for monitoring the location and movement of objects
First Claim
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1. A location determining system, comprising:
- first, second and third routers, adapted for placement in a relatively horizontal plane in a bounded area, such that a first direction intersecting the first and second routers is about perpendicular to a second direction intersecting the first and third routers, and each of the first, second and third routers being adapted to communicate in a wireless multihopping network to exchange location information with each other pertaining to their respective locations relative to each other;
at least one movable device, adapted to communicate with the first, second and third routers in the wireless multihopping network to exchange with the first, second and third routers location information pertaining to its location; and
a monitoring device, adapted to receive the location information pertaining to the first, second and third routers and the movable device and to establish, based on the received location information, a reference system identifying the respective locations of the first, second and third routers and the movable device relative to each other within the bounded area.
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Abstract
The present invention relates to a system and method for deploying devices, such as routers (107) and mobile nodes (102) or tags, that communicate in a wireless multihopping ad-hoc communication network (100), that enables a monitoring system such as a dispatcher (212) to create a reference system to identify the location of each device. The system and method thus allows for prompt identification of the locations of persons or items, particularly firefighters and other persons operating in hazardous environments, to expedite rescue efforts.
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Citations
20 Claims
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1. A location determining system, comprising:
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first, second and third routers, adapted for placement in a relatively horizontal plane in a bounded area, such that a first direction intersecting the first and second routers is about perpendicular to a second direction intersecting the first and third routers, and each of the first, second and third routers being adapted to communicate in a wireless multihopping network to exchange location information with each other pertaining to their respective locations relative to each other; at least one movable device, adapted to communicate with the first, second and third routers in the wireless multihopping network to exchange with the first, second and third routers location information pertaining to its location; and a monitoring device, adapted to receive the location information pertaining to the first, second and third routers and the movable device and to establish, based on the received location information, a reference system identifying the respective locations of the first, second and third routers and the movable device relative to each other within the bounded area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for creating a location determining system, the method comprising:
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deploying first, second and third routers in a relatively horizontal plane in a bounded area, such that a first direction intersecting the first and second routers is about perpendicular to a second direction intersecting the first and third routers; operating each of the first, second and third routers to communicate in a wireless multihopping network to exchange location information with each other pertaining to their respective locations relative to each other; deploying at least one movable device in the bounded area; operating the movable device to communicate with the first, second and third routers in the wireless multihopping network to exchange with the first, second and third routers location information pertaining to its location; receiving the location information pertaining to the first, second and third routers and the movable device at a monitoring device; and operating the monitoring device to establish, based on the received location information, a reference system identifying the respective locations of the first, second and third routers and the movable device relative to each other within the bounded area. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification