Vehicle-to-vehicle communication apparatus, vehicle-to-vehicle communication system, and method of determining applicability of moving image information to an application program
First Claim
Patent Images
1. A vehicle-to-vehicle communication apparatus comprising:
- a wireless communication unit configured to wirelessly transmit and receive moving image information;
a time delay acquisition unit configured to acquire delay time information indicating a delay time that occurs when the moving image information is transmitted from one vehicle to another vehicle in vehicle-to-vehicle transmission performed by the wireless communication unit;
an allowable delay table memory in which there is stored table information indicating an allowable delay time determined for at least one application program which uses the moving image information; and
an applicability determination unit configured to determine the applicability of the moving image information to the at least one application program based on the delay time information acquired by the time delay acquisition unit and the table information stored in the allowable delay table memory.
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Abstract
In a vehicle-to-vehicle communication system, when moving image information is transmitted between vehicles, a delay time acquisition unit determines a delay time that occurs when the moving image information is transmitted from a first vehicle to a second vehicle, and an applicability determination unit determines whether the moving image information transmitted with such a delay time is applicable to an application program running on an in-vehicle apparatus installed in the second vehicle. This makes it possible to transmit only moving image information which is usable by the in-vehicle apparatus.
37 Citations
14 Claims
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1. A vehicle-to-vehicle communication apparatus comprising:
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a wireless communication unit configured to wirelessly transmit and receive moving image information;
a time delay acquisition unit configured to acquire delay time information indicating a delay time that occurs when the moving image information is transmitted from one vehicle to another vehicle in vehicle-to-vehicle transmission performed by the wireless communication unit;
an allowable delay table memory in which there is stored table information indicating an allowable delay time determined for at least one application program which uses the moving image information; and
an applicability determination unit configured to determine the applicability of the moving image information to the at least one application program based on the delay time information acquired by the time delay acquisition unit and the table information stored in the allowable delay table memory. - View Dependent Claims (2)
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3. A vehicle-to-vehicle communication apparatus comprising:
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a wireless communication unit configured to wirelessly transmit and receive moving image information;
an image quality acquisition unit configured to acquire image quality information associated with the moving image information when the moving image information is transmitted between vehicles by the wireless communication unit;
an allowable image quality table memory in which there is stored table information indicating allowable image quality determined for at least one application program which uses the moving image information; and
an applicability determination unit configured to determine the applicability of the moving image information to the at least one application program, based on the image quality information acquired by the image quality acquisition unit and the table information stored in the allowable image quality table memory.
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4. A vehicle-to-vehicle communication system for wirelessly transmitting and receiving moving image information between a first vehicle-to-vehicle communication apparatus installed in a first vehicle and a second vehicle-to-vehicle communication apparatus installed in a second vehicle,
the first vehicle-to-vehicle communication apparatus including: -
a time delay acquisition unit configured to acquire delay time information indicating a delay time that occurs when the moving image information is transmitted from the first vehicle to the second vehicle; and
a wireless transmission unit configured to wirelessly transmit the delay time information acquired by the time delay acquisition unit and the moving image information to the second vehicle-to-vehicle communication apparatus, the second vehicle-to-vehicle communication apparatus including;
a wireless reception unit configured to receive the moving image information and the delay time information transmitted from the wireless transmission unit;
an allowable delay table memory in which there is stored table information indicating an allowable delay time determined for at least one application program which uses the moving image information; and
an applicability determination unit configured to determine the applicability of the moving image information received by the wireless reception unit to the at least one application program, based on the delay time information received by the wireless reception unit and the table information stored in the allowable delay table memory. - View Dependent Claims (5, 6, 7)
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8. A vehicle-to-vehicle communication system for wirelessly transmitting and receiving moving image information between a first vehicle-to-vehicle communication apparatus installed in a first vehicle and a second vehicle-to-vehicle communication apparatus installed in a second vehicle,
the first vehicle-to-vehicle communication apparatus including: -
an image quality acquisition unit configured to acquire image quality information associated with the moving image information; and
a wireless transmission unit configured to wirelessly transmit the image quality information acquired by the image quality acquisition unit and the moving image information to the second vehicle-to-vehicle communication apparatus, the second vehicle-to-vehicle communication apparatus including;
a wireless reception unit configured to receive the moving image information and the image quality information transmitted from the wireless transmission unit;
an allowable image quality table memory in which there is stored table information indicating allowable image quality determined for at least one application program which uses the moving image information; and
an applicability determination unit configured to determine the applicability of the moving image information received by the wireless reception unit to the at least one application program, based on the image quality information received by the wireless reception unit and the table information stored in the allowable image quality table memory.
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9. A method of determining the applicability of moving image information to an application program, comprising:
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a first step in which a time delay acquisition unit included in a first vehicle-to-vehicle communication apparatus installed in a first vehicle acquires delay time information indicating a delay time that occurs when the moving image information is transmitted from the first vehicle to a second vehicle;
a second step in which a wireless transmission unit included in the first vehicle-to-vehicle communication apparatus transmits the moving image information together with the delay time information acquired in the first step to a second vehicle-to-vehicle communication apparatus installed in the second vehicle;
a third step in which a wireless reception unit included in the second vehicle-to-vehicle communication apparatus receives the moving image information and the delay time information transmitted in the second step; and
a fourth step in which an applicability determination unit included in the second vehicle-to-vehicle communication apparatus determines the applicability of the moving image information received in the third step to the application program, based on the delay time information received in the third step and table information indicating an allowable delay time determined for an application program which uses the moving image information.
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10. A method of determining the applicability of moving image information to an application program, comprising:
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a first step in which a time delay acquisition unit included in a first vehicle-to-vehicle communication apparatus installed in a first vehicle acquires delay time information indicating a delay time that occurs when the moving image information is transmitted from the first vehicle to a second vehicle;
a second step in which a wireless transmission unit included in the first vehicle-to-vehicle communication apparatus transmits the delay time information acquired in the first step to a second vehicle-to-vehicle communication apparatus installed in the second vehicle;
a third step in which a wireless reception unit included in the second vehicle-to-vehicle communication apparatus receives the delay time information transmitted in the second step;
a fourth step in which an applicability determination unit included in the second vehicle-to-vehicle communication apparatus determines the applicability of moving image information, which will be transmitted from the first vehicle-to-vehicle communication apparatus, to the application program based on the delay time information received in the third step and table information indicating an allowable delay time determined for an application program which uses the moving image information;
a fifth step in which, when the determination in the fourth step is that the moving image information is applicable to the application program, a request transmission unit included in the second vehicle-to-vehicle communication apparatus transmits a request for transmission of the moving image information to the first vehicle-to-vehicle communication apparatus;
a sixth step in which a request reception unit included in the first vehicle-to-vehicle communication apparatus receives the request for transmission of the moving image information transmitted in the fifth step; and
a seventh step in which when the request for transmission of the moving image information is received in the sixth step, the wireless transmission unit included in the first vehicle-to-vehicle communication apparatus transmits the moving image information to the second vehicle-to-vehicle communication apparatus. - View Dependent Claims (11)
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12. A method of determining the applicability of moving image information to an application program, comprising:
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a first step in which an image quality acquisition unit included in a first vehicle-to-vehicle communication apparatus installed in a first vehicle acquires image quality information associated with the moving image information;
a second step in which a wireless transmission unit included in the first vehicle-to-vehicle communication apparatus transmits the moving image information together with the image quality information acquired in the first step to a second vehicle-to-vehicle communication apparatus installed in a second vehicle;
a third step in which a wireless reception unit included in the second vehicle-to-vehicle communication apparatus receives the moving image information and the image quality information transmitted in the second step; and
a fourth step in which an applicability determination unit included in the second vehicle-to-vehicle communication apparatus determines the applicability of the moving image information received in the third step to the application program, based on the image quality information received in the third step and table information indicating allowable image quality determined for an application program which uses the moving image information.
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13. A method of determining the applicability of moving image information to an application program, comprising:
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a first step in which an image quality acquisition unit included in a first vehicle-to-vehicle communication apparatus installed in a first vehicle acquires image quality information associated with the moving image information;
a second step in which a wireless transmission unit included in the first vehicle-to-vehicle communication apparatus transmits the image quality information acquired in the first step to a second vehicle-to-vehicle communication apparatus installed in a second vehicle;
a third step in which a wireless reception unit included in the second vehicle-to-vehicle communication apparatus receives the image quality information transmitted in the second step;
a fourth step in which an applicability determination unit included in the second vehicle-to-vehicle communication apparatus determines the applicability of moving image information, which will be transmitted from the first vehicle-to-vehicle communication apparatus, to the application program based on the image quality information received in the third step and table information indicating allowable image quality determined for an application program which uses the moving image information;
a fifth step in which, when the determination in the fourth step is that the moving image information is applicable to the application program, a request transmission unit included in the second vehicle-to-vehicle communication apparatus transmits a request for transmission of the moving image information to the first vehicle-to-vehicle communication apparatus;
a sixth step in which a request reception unit included in the first vehicle-to-vehicle communication apparatus receives the request for transmission of the moving image information transmitted in the fifth step; and
a seventh step in which, when the request for transmission of the moving image information is received in the sixth step, the wireless transmission unit included in the first vehicle-to-vehicle communication apparatus transmits the moving image information to the second vehicle-to-vehicle communication apparatus. - View Dependent Claims (14)
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Specification