Safety detection system and method
First Claim
1. A safety detection system for detecting and signaling a target in a danger zone, the detection system comprising:
- a base station adapted to be positioned at a danger source and comprising;
a plurality of detectors adapted to cover a plurality of adjacent and mutually exclusive zones forming a single intersection point coinciding with the base station such that each detector has an angular orientation and is adapted to cover an associated single zone only; and
a control device adapted to signal presence of a detected target within a zone by a detector comprising a position of the detected target with respect to the base station, the control device comprising a memory storing data mapping the detectors to their respective angular orientations, where the mapping data is used by the control device to determine an angular orientation of the detector associated with the detected target as an indication of an angular position of the detected target with respect to the base station,wherein each detector comprises a directional radio frequency (RF) transceiver and an associated ultrasound (US) transceiver, the RF transceiver being adapted to detect the presence of a target within an associated zone and the US transceiver being adapted for determining a distance between the detected target and the base station and reporting said distance to the control device, the position of the detected target with respect to the base station comprising the angular position and the distance, andwherein said US transceiver is adapted to be activated in response to said target detection by the RF transceiver.
1 Assignment
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Accused Products
Abstract
There is provided a safety method of detecting and signaling presence of a danger related to a danger source, the method comprising providing a base station at the danger source comprising first detectors and second detectors, the base station being adapted to determine an angular position of a target detected by a first detector among the first detectors within a detection zone based on an angular orientation of the first detector known a priori by the base station, and to determine a distance of the target by activating a second detector among the second detectors to measure the distance between the target and the base station in response to the target detection; and providing targets with portable target devices adapted to send signals in response to signals received from the first detectors of the base station. The first detectors are radio frequency transceivers and the second detectors are ultrasound transceiver. There is also provided a safety system for detecting and signaling presence of a target in danger zone.
16 Citations
18 Claims
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1. A safety detection system for detecting and signaling a target in a danger zone, the detection system comprising:
a base station adapted to be positioned at a danger source and comprising; a plurality of detectors adapted to cover a plurality of adjacent and mutually exclusive zones forming a single intersection point coinciding with the base station such that each detector has an angular orientation and is adapted to cover an associated single zone only; and a control device adapted to signal presence of a detected target within a zone by a detector comprising a position of the detected target with respect to the base station, the control device comprising a memory storing data mapping the detectors to their respective angular orientations, where the mapping data is used by the control device to determine an angular orientation of the detector associated with the detected target as an indication of an angular position of the detected target with respect to the base station, wherein each detector comprises a directional radio frequency (RF) transceiver and an associated ultrasound (US) transceiver, the RF transceiver being adapted to detect the presence of a target within an associated zone and the US transceiver being adapted for determining a distance between the detected target and the base station and reporting said distance to the control device, the position of the detected target with respect to the base station comprising the angular position and the distance, and wherein said US transceiver is adapted to be activated in response to said target detection by the RF transceiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A safety detection system for detecting and signaling a target in a danger zone, the detection system comprising:
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a base station adapted to be positioned at a danger source and comprising; a plurality of detectors adapted to cover a plurality of adjacent and mutually exclusive zones forming a single intersection point coinciding with the base station such that each detector has an angular orientation and is adapted to cover an associated single zone only; and a control device adapted to signal presence of a detected target within a zone by a detector comprising a position of the detected target with respect to the base station, the control device comprising a memory storing data mapping the detectors to their respective angular orientations, where the mapping data is used by the control device to determine an angular orientation of the detector associated with the detected target as an indication of an angular position of the detected target with respect to the base station, wherein said danger source is a movable object, wherein the control device further comprises a direction unit comprising a sensor adapted to detect a movement direction of the movable object, wherein said control device is adapted to determine whether the zone associated with detected target represents a danger zone based on the movement direction of the object, and to identify said detected target as a high risk target or a low risk target based on said danger zone determination. - View Dependent Claims (18)
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Specification