Optical receiving apparatus, shield plate, computer product, transit support method, and transit support apparatus
First Claim
Patent Images
1. An optical receiving apparatus provided on a mobile object and comprising:
- a receiving unit that receives an optical signal transmitted from a transmitting unit of a communication device disposed apart from the mobile object; and
a blocking unit that blocks the optical signal when an incident angle of the optical signal relative to a disposition surface of the receiving unit becomes equal to or greater than a predetermined incident angle, wherein the optical signal is blocked at a point where the optical signal is strongest.
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Abstract
An optical receiving apparatus is provided on a mobile object and includes a receiving unit that receives an optical signal transmitted from a transmitting unit of a communication device disposed apart from the mobile object; and a blocking unit that blocks the optical signal when an incident angle of the optical signal relative to a disposition surface of the receiving unit becomes equal to or greater than a predetermined incident angle.
9 Citations
14 Claims
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1. An optical receiving apparatus provided on a mobile object and comprising:
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a receiving unit that receives an optical signal transmitted from a transmitting unit of a communication device disposed apart from the mobile object; and a blocking unit that blocks the optical signal when an incident angle of the optical signal relative to a disposition surface of the receiving unit becomes equal to or greater than a predetermined incident angle, wherein the optical signal is blocked at a point where the optical signal is strongest. - View Dependent Claims (2, 3, 4)
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5. A non-transitory computer-readable recording medium storing therein a transit support program that causes a computer equipped on a vehicle to execute:
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detecting passage of the vehicle through an initial position on a road along which the vehicle is traveling toward an intersection of the road, based on a light receiving state of an optical receiving apparatus equipped on the vehicle and comprising a receiving unit that receives an optical signal transmitted from a transmitting unit of a communication device disposed apart from the mobile object, and a blocking unit that blocks the optical signal when an incident angle of the optical signal relative to a disposition surface of the receiving unit becomes equal to or greater than a predetermined incident angle, wherein the optical signal is blocked at a point where the optical signal is strongest; acquiring information concerning a position of the vehicle relative to the initial position, if the passage of the vehicle has been detected at the detecting, the vehicle continuing to travel after passing the initial position; identifying a position of the vehicle with respect to the intersection, based on the information acquired at the acquiring; extracting, from traffic information concerning the intersection and correlated with positions at the intersection, specific traffic information correlated with the position identified at the identifying; and
outputting the specific traffic information extracted at the extracting. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A transit support apparatus equipped on a vehicle and comprising:
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an optical receiving apparatus that comprises a receiving unit that receives an optical signal transmitted from a transmitting unit of a communication device disposed apart from the mobile object, and a blocking unit that blocks the optical signal when an incident angle of the optical signal relative to a disposition surface of the receiving unit becomes equal to or greater than a predetermined incident angle, wherein the optical signal is blocked at a point where the optical signal is strongest; a detecting unit that detects passage through an initial position on a road along which the vehicle is traveling toward an intersection of the road, based on a light receiving state of the optical receiving apparatus; an acquiring unit that, if passage through the initial position is detected by the detecting unit, acquires information concerning displacement of the vehicle with respect to the initial position, the vehicle continuously moving after passing the initial position; an identifying unit that identifies a position of the vehicle with respect to the intersection based on the information acquired by the acquiring unit; an extracting unit that extracts specific traffic information correlated with the identified position, from traffic information concerning the intersection and stored in a storage device equipped on the vehicle, the traffic information being correlated with positions at the intersection; and an output unit that outputs the specific traffic information extracted by the extracting unit. - View Dependent Claims (12, 13, 14)
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Specification