Detector system for detecting the direction in which an item passes through a determined boundary zone
First Claim
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1. A goods transport vehicle including a detector system for detecting the direction in which an item passes through an opening of a loading/unloading door on the vehicle, wherein said detector system comprises:
- a first read-interrogate element including a first antenna having a first detection lobe, the first read interrogate element being located in the door of the vehicle and monitoring a first region situated on one side of said door;
a second read-interrogate element including a second antenna having a second detection lobe that does not overlap the first detection lobe, the second read interrogate element being located in the door of the vehicle and monitoring a second region situated on the other side of said; and
processor means connected to the first and second read-interrogate elements, the processor means determining the direction in which the item passes through as a function of the order in which said two regions are crossed.
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Abstract
The invention relates to a goods transport vehicle including a detector system for detecting the direction in which an item passes through a loading/unloading door on the vehicle, the detector system including:
- a first read-interrogate element including a first antenna having a first detection lobe, the first read-interrogate element monitoring a first region situated on one side of the loading/unloading door;
- a second read-interrogate element including a second antenna having a second detection lobe that does not overlap the first detection lobe, the second read-interrogate element monitoring a second region situated on the other side of the loading/unloading door; and
- processor means connected to the first and second read-interrogate elements, the processor means determining the direction in which the item passes through as a function of the order in which the two regions are crossed.
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Citations
8 Claims
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1. A goods transport vehicle including a detector system for detecting the direction in which an item passes through an opening of a loading/unloading door on the vehicle, wherein said detector system comprises:
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a first read-interrogate element including a first antenna having a first detection lobe, the first read interrogate element being located in the door of the vehicle and monitoring a first region situated on one side of said door; a second read-interrogate element including a second antenna having a second detection lobe that does not overlap the first detection lobe, the second read interrogate element being located in the door of the vehicle and monitoring a second region situated on the other side of said; and processor means connected to the first and second read-interrogate elements, the processor means determining the direction in which the item passes through as a function of the order in which said two regions are crossed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification