Ad hoc communication system, mobile terminal, center, ad hoc communication method and ad hoc communication program
First Claim
1. An ad-hoc communication system, in which information is directly communicated among mobile terminals through an ad-hoc communication, comprising:
- at least two mobile terminals; and
a center for issuing an ad-hoc identification for uniquely specifying each mobile terminal communicating information through the ad-hoc communication, the center sending an ad-hoc identification with an expiration date to the mobile terminal corresponding to the ad-hoc identification.
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Accused Products
Abstract
An ad-hoc communication system, a mobile terminal, a center, an ad-hoc communication method and an ad-hoc communication program, in which information is directly communicated each other among mobile terminals mounted on vehicles to raise information accuracy while ensuring privacy. The center issues an ad-hoc ID with an expiration date for uniquely specifying the vehicles to deliver this ad-hoc ID to the vehicles. The center collects an ad-hoc identification of a mobile terminal exhibiting a different tendency from other mobile terminals and a report extracting information concerning the tendency, calculates reliability and bias of information produced by the mobile terminal included in the report on the basis of the report, and implants the reliability and bias of the information in the ad-hoc identification. The center puts a signature on the ad-hoc identification to prevent tampering of the ad-hoc identification.
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Citations
14 Claims
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1. An ad-hoc communication system, in which information is directly communicated among mobile terminals through an ad-hoc communication, comprising:
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at least two mobile terminals; and
a center for issuing an ad-hoc identification for uniquely specifying each mobile terminal communicating information through the ad-hoc communication, the center sending an ad-hoc identification with an expiration date to the mobile terminal corresponding to the ad-hoc identification. - View Dependent Claims (2, 3, 4, 5, 6)
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- 7. A mobile terminal for directly communicating information with other mobile terminals through an ad-hoc communication for directly communicating the information among the mobile terminals, in which an ad-hoc identification with an expiration date for uniquely specifying the mobile terminal for communicating the information is given to the information.
- 10. A center including an ad-hoc identification issue device for issuing an ad-hoc identification for uniquely specifying mobile terminals communicating information through an ad-hoc communication for directly communicating the information among the mobile terminals, the ad-hoc identification issue device setting an expiration date to the issued ad-hoc identification and sending the ad-hoc identification with the expiration date to a mobile terminal corresponding to the ad-hoc identification.
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13. An ad-hoc communication method in an ad-hoc communication system including mobile terminals for directly communicating information each other through an ad-hoc communication for directly communicating the information among the mobile terminals, and a center for issuing an ad-hoc identification for uniquely specifying the mobile terminals, comprising:
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a step that the mobile terminal requests the center to issue the ad-hoc identification;
a step that the center collects an ad-hoc identification of a mobile terminal exhibiting a different tendency from other terminals and a report extracting information concerning the tendency, from the mobile terminal; and
a step that the center calculates reliability and bias of information produced by a mobile terminal included in the report on the basis of the report, implants the reliability and bias of the information to an ad-hoc identification with an expiration date, and issues the implanted ad-hoc identification to the mobile terminal.
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14. An ad-hoc communication program in an ad-hoc communication system including mobile terminals for directly communicating information each other through an ad-hoc communication for directly communicating the information among the mobile terminals, and a center for issuing an ad-hoc identification for uniquely specifying the mobile terminals, for use in a computer, comprising:
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a process that the mobile terminal requests the center to issue the ad-hoc identification;
a process that the center collects an ad-hoc identification of a mobile terminal exhibiting a different tendency from other terminals and a report extracting information concerning the tendency, from the mobile terminal; and
a process that the center calculates reliability and bias of information produced by a mobile terminal included in the report on the basis of the report, implants the reliability and bias of the information to an ad-hoc identification with an expiration date, and issues the implanted ad-hoc identification to the mobile terminal.
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Specification