Boundary crossing object detection system
First Claim
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1. A boundary monitoring apparatus comprising:
- an object detection device arranged to transmit a signal into a detection region and to detect an object in said detection region upon receipt of a reflected signal from said object;
means for defining a boundary in said detection region;
means for determining a path of said object in the detection region;
means for performing an evaluation of the determined path of the object with respect to the boundary; and
means for causing an alarm event depending on the evaluation.
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Abstract
An boundary monitoring apparatus comprising an object detection device arranged to transmit a signal into a detection region and to detect an object in said detection region upon receipt of a reflected signal from said object; means for defining a boundary in said detection region; means for determining a path of said object in the detection region; means for performing an evaluation of the determined path of the object with respect to the boundary; and means for causing an alarm event depending on the evaluation.
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Citations
16 Claims
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1. A boundary monitoring apparatus comprising:
- an object detection device arranged to transmit a signal into a detection region and to detect an object in said detection region upon receipt of a reflected signal from said object;
means for defining a boundary in said detection region;
means for determining a path of said object in the detection region;
means for performing an evaluation of the determined path of the object with respect to the boundary; and
means for causing an alarm event depending on the evaluation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- an object detection device arranged to transmit a signal into a detection region and to detect an object in said detection region upon receipt of a reflected signal from said object;
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16. A method of monitoring a boundary in an apparatus comprising an object detection device arranged to transmit a signal into a detection region and to detect an object in said detection region upon receipt of a reflected signal from said object, the method comprising defining a boundary in said detection region;
- determining a path of said object in the detection region;
performing an evaluation of the determined path of the object with respect to the boundary; and
causing an alarm event depending on the evaluation.
- determining a path of said object in the detection region;
Specification