Lane change detecting system for mobile bodies and mobile body detecting device employed in such system
First Claim
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1. A lane change detecting system comprising:
- emission means for emitting a predetermined signal, said emission means being provided in a boundary between lanes of a road so that the predetermined signal emitted by said emission means is affected by a mobile body crossing the boundary between the lanes;
receiving means provided in the boundary between the lanes for receiving the predetermined signal emitted by said emission means and outputting a receiving signal corresponding to the received signal; and
determination means for determining, based on a state of the output signal from said receiving means, whether a mobile body has crossed the boundary between the lanes.
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Abstract
A lane change detecting system includes an emission unit for emitting a predetermined signal, the emission unit being provided in a boundary between lanes of a road so that the predetermined signal emitted by the emission unit is affected by a mobile body which crosses the boundary between the lanes, a receiving unit which is provided in the boundary between the lanes for receiving the predetermined signal emitted by the emission unit and outputting a receiving signal corresponding to the received signal, and a determination unit for determining, based on a state of the receiving signal from the receiving unit, whether a mobile body crossed across the boundary between the lanes.
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Citations
7 Claims
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1. A lane change detecting system comprising:
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emission means for emitting a predetermined signal, said emission means being provided in a boundary between lanes of a road so that the predetermined signal emitted by said emission means is affected by a mobile body crossing the boundary between the lanes; receiving means provided in the boundary between the lanes for receiving the predetermined signal emitted by said emission means and outputting a receiving signal corresponding to the received signal; and determination means for determining, based on a state of the output signal from said receiving means, whether a mobile body has crossed the boundary between the lanes. - View Dependent Claims (2, 3, 4)
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5. A mobile body detecting device comprising:
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a housing having a first surface and a second surface facing the first surface; signal emission means which is mounted in said housing for emitting a predetermined signal through the first surface; receiving means which is mounted in said housing for outputting a receiving signal corresponding to a signal incident to a receiving surface of said receiving means, the receiving surface facing outward through the second surface; wherein said signal emission means emits a pulsed laser beam as the predetermined signal beam, and an optical axis of the pulsed laser beam emitted by said signal emission means is on a line normal to a center of the receiving surface of said receiving means. - View Dependent Claims (6, 7)
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Specification