Dedicated short-range communication on-vehicle apparatus
First Claim
1. A dedicated short-range communication on-vehicle apparatus mounted on a motor vehicle in a dedicated short-range communication system for an intelligent traffic system, comprising:
- an antenna having directivity in a predetermined direction;
a radio module for performing transmission/reception of radio wave with road-side radio equipment by way of said antenna;
a data processing unit for processing transmission/reception data transmitted/received by said radio module; and
a box-like housing for housing therein said antenna, said radio module and said data processing unit in a unitary structure,wherein said box-like housing is adapted to be fixedly attached onto a windshield of the motor vehicle with a mounting plate being disposed on the radiation side of said antenna by means of an adhesive member, andwherein at least a radio wave aperture portion of said mounting plate is made of a radio wave transmissible material,said dedicated short-range communication on-vehicle apparatus further comprising a substrate on which at least one of said radio module and said data processing unit is mounted,wherein when said antenna is so set as to be transmissible in a direction orthogonal to said substrate, a substrate surface region located above an antenna transmissive planar region is greater than a substrate surface region located beneath said antenna transmissive planar region.
1 Assignment
0 Petitions
Accused Products
Abstract
A dedicated short-range communication on-vehicle apparatus easily attachable on a wind shield of the motor vehicle includes an antenna, a radio module, a data processing unit and others contained in a single box-like housing. The antenna (8) has directivity in a predetermined orientation. The radio module (10) performs transmission/reception of radio wave with road-side radio equipment through the antenna (8). The data processing unit (11) processes data transferred through the radio module (10). The box-like housing (4) houses the antenna (8), the radio module (10) and the data processing unit (11) en bloc. The box-like housing (4) is fixedly attached onto a windshield (3) of the motor vehicle at a mounting plate (4a) of the housing (4) on the antenna radiation side by an adhesive member (30). A radio wave aperture portion of the mounting plate (4a) is made of a radio wave transmissible material.
7 Citations
16 Claims
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1. A dedicated short-range communication on-vehicle apparatus mounted on a motor vehicle in a dedicated short-range communication system for an intelligent traffic system, comprising:
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an antenna having directivity in a predetermined direction; a radio module for performing transmission/reception of radio wave with road-side radio equipment by way of said antenna; a data processing unit for processing transmission/reception data transmitted/received by said radio module; and a box-like housing for housing therein said antenna, said radio module and said data processing unit in a unitary structure, wherein said box-like housing is adapted to be fixedly attached onto a windshield of the motor vehicle with a mounting plate being disposed on the radiation side of said antenna by means of an adhesive member, and wherein at least a radio wave aperture portion of said mounting plate is made of a radio wave transmissible material, said dedicated short-range communication on-vehicle apparatus further comprising a substrate on which at least one of said radio module and said data processing unit is mounted, wherein when said antenna is so set as to be transmissible in a direction orthogonal to said substrate, a substrate surface region located above an antenna transmissive planar region is greater than a substrate surface region located beneath said antenna transmissive planar region. - View Dependent Claims (8, 9, 10, 14, 15, 16)
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2. A dedicated short-range communication on-vehicle apparatus mounted on a motor vehicle in a dedicated short-range communication system for an intelligent traffic system, comprising:
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an antenna having directivity in a predetermined direction; a radio module for performing transmission/reception of radio wave with road-side radio equipment by way of said antenna; a data processing unit for processing transmission/reception data transmitted/received by said radio module; and a box-like housing for housing therein said antenna, said radio module and said data processing unit in a unitary structure, wherein said box-like housing is adapted to be fixedly attached onto a windshield of the motor vehicle with a mounting plate being disposed on the radiation side of said antenna by means of an adhesive member, wherein at least a radio wave aperture portion of said mounting plate is made of a radio wave transmissible material, and wherein said antenna, said radio module and said data processing unit are mounted on one and the same substrate, and wherein the area of a substrate surface region located above said antenna is selected greater than a substrate surface region located below said antenna. - View Dependent Claims (3, 4, 5, 6, 7)
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11. A dedicated short-range communication on-vehicle apparatus mounted on a motor vehicle in a dedicated short-range communication system for an intelligent traffic system, comprising:
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an antenna having directivity in a predetermined direction; a radio module for performing transmission/reception of radio wave with road-side radio equipment by way of said antenna; a data processing unit for processing transmission/reception data transmitted/received by said radio module; and a box-like housing for housing therein said antenna, said radio module and said data processing unit in a unitary structure, wherein said box-like housing is adapted to be fixedly attached onto a windshield of the motor vehicle with a mounting plate being disposed on the radiation side of said antenna by means of an adhesive member, and wherein at least a radio wave aperture portion of said mounting plate is made of a radio wave transmissible material, said dedicated short-range communication on-vehicle apparatus further comprising; a label carrying predetermined information and designed to be stuck on said mounting plate; and a seal stuck on said mounting plate so as to cover said label. - View Dependent Claims (12, 13)
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Specification