Area surveying apparatus and communication system
First Claim
1. A method of protecting a predetermined area, comprising the steps of:
- a) providing a base station positioned essentially at the center of the area to be protected, said base station being provided with a scanning laser beam generating and receiving means, image and signal processing units, a memory means, a voice receiving and transmitting means and an image viewing means;
b) causing a laser beam generated from the base station to be reflected from the surveyed area into the receiving means of the base station;
c) processing the received reflected light to generate an image of the surveyed area;
d) storing one or more scanned images in memory means, to be used as reference images;
e) at any given time, comparing a real-time scanned image with one or more stored reference image(s), to determine changes which have occurred on the image, which exceed predetermined threshold values, and alerting the operator of the base station of any such changes;
f) providing one or more moving station(s) comprising an emitting/receiving laser generating means and a signal processing means, and causing the said moving station to generate an emitted signal which identifies it;
g) providing recognition means within the signal processing means of the base station, to recognize the signal generated by the moving station as a friendly signal, and to alert the operator of the base station whether a change in the image of the scanned area belongs to a friendly or to an unfriendly force.
1 Assignment
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Accused Products
Abstract
A method of protecting a predetermined area, comprises the steps of: a) providing a base station positioned essentially at the center of the area to be protected, the said base station being provided with scanning laser beam generating and receiving means, image and signal processing units, memory means, voice receiving and transmitting means and image viewing means; b) causing a laser beam generated by the base station to be reflected from the surveyed area into the receiving means of the base station; c) processing the received reflected light to generate an image of the surveyed area; d) storing one or more scanned images in memory means, to be used as reference images; e) at any given time, comparing a real-time scanned image with one or more stored reference image(s), to determine changes which have occurred on the image, which exceed predetermined threshold values, and alerting the operator of the base station of any such changes; f) providing one or more moving station(s) comprising emitting/receiving laser generating means and signal processing means, and causing the said moving station to generate an emitted signal which identifies it; and g) providing recognition means within the signal processing means of the base station, to recognize the signal generated by the moving station as a friendly signal, and to alert the operator of the base station whether a change in the image of the scanned area belongs to a friendly or to an unfriendly force.
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Citations
14 Claims
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1. A method of protecting a predetermined area, comprising the steps of:
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a) providing a base station positioned essentially at the center of the area to be protected, said base station being provided with a scanning laser beam generating and receiving means, image and signal processing units, a memory means, a voice receiving and transmitting means and an image viewing means; b) causing a laser beam generated from the base station to be reflected from the surveyed area into the receiving means of the base station; c) processing the received reflected light to generate an image of the surveyed area; d) storing one or more scanned images in memory means, to be used as reference images; e) at any given time, comparing a real-time scanned image with one or more stored reference image(s), to determine changes which have occurred on the image, which exceed predetermined threshold values, and alerting the operator of the base station of any such changes; f) providing one or more moving station(s) comprising an emitting/receiving laser generating means and a signal processing means, and causing the said moving station to generate an emitted signal which identifies it; g) providing recognition means within the signal processing means of the base station, to recognize the signal generated by the moving station as a friendly signal, and to alert the operator of the base station whether a change in the image of the scanned area belongs to a friendly or to an unfriendly force. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for protecting a predetermined area, comprising:
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a) a base station positioned essentially at the center of the area to be protected, said base station being provided with a scanning laser beam generating and receiving means, image and signal processing units, a memory means, a voice receiving and transmitting means and an image viewing means; b) receiving means positioned within the base station, for receiving light from a laser beam generated from the base station and reflected from the surveyed area; c) processing means for processing the received reflected light to generate an image of the surveyed area; d) memory means for storing one or more scanned images, to be used as reference images; e) comparing means for comparing, at any given time, a real-time scanned image with one or more stored reference images(s), to determine changes which have occurred on the image, which exceed predetermined threshold values, and alarm means for alerting the operator of the base station of any such changes; f) one or more moving station(s) comprising an emitting/receiving laser generating means and a signal processing means, and a signal generating means provided within said moving station, to generate an emitted signal which identifies it; g) recognition means provided within the signal processing means of the base station, to recognize the signal generated by the moving station as a friendly signal, and to alert the operator of the base station when a change in the image of the scanned area belongs to a friendly force. - View Dependent Claims (13)
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14. A system for surveying a predetermined area, comprising:
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a) a base station positioned essentially at the center of the area to be protected, said base station being provided with a scanning laser beam generating and receiving means, image and signal processing units and an image viewing means; b) receiving means positioned within the base station, for receiving light from a laser beam generated from the base station and reflected from the surveyed area; c) processing means for processing the received reflected light to generate an image of the surveyed area; d) memory means for storing one or more scanned images, to be used as reference images; and e) comparing means for comparing, at any given time, a real-time scanned image with one or more stored reference image(s), to determine changes which have occurred on the image, which exceed predetermined threshold values, and alarm means for alerting the operator of the base station of any such changes.
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Specification