Probe-car system using beacon and apparatus therefore
First Claim
1. A probe-car system comprising:
- an on-board unit of a probe-car;
a first beacon; and
a center apparatus, wherein said on-boar unit uploads at least one of;
first information including measurement information measured while the probe-car is moving; and
second information including said measurement information and road section reference data indicating a measurement section of the measurement information, to said first beacon, and wherein said center apparatus collects the measurement information from the on-board unit of a probe-car through the beacon.
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Accused Products
Abstract
The present invention provides a probe-car system in which beacons are used to efficiently collect measurement data from an FCD on-vehicle apparatus. There are provided an on-board unit of a probe-car 121 which selects one of second information (1) of measurement information measured during running and road section reference data indicating a measurement section of the measurement information and first information (3) of the measurement information, and uploads it to a beacon 123, and a center apparatus which collects the measurement information from the on-board unit of a probe-car 121 through the beacon 123. In this system, when the probe-car 121 runs along an installation route of beacons 122 and 123 and passes through under the downstream side beacon 123, only the measurement information is transmitted, so that the data amount of the measurement information can be increased, and the detailed measurement information can be transmitted. When the probe-car 121 runs along a bypass, the swept path of the bypass and the measurement information are uploaded to the downstream side beacon 123, so that the center apparatus can utilize it as the measurement information of the bypass.
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Citations
11 Claims
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1. A probe-car system comprising:
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an on-board unit of a probe-car;
a first beacon; and
a center apparatus, wherein said on-boar unit uploads at least one of;
first information including measurement information measured while the probe-car is moving; and
second information including said measurement information and road section reference data indicating a measurement section of the measurement information, to said first beacon, and wherein said center apparatus collects the measurement information from the on-board unit of a probe-car through the beacon. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. The on-board unit of a probe-car comprising:
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a communication unit for communicating with a beacon;
an own vehicle position judgment unit for detecting own vehicle position;
a sensor information collection unit for collecting measurement information of a sensor;
a storage unit for storing the measurement information collected by the sensor information collection unit and a swept path made of a set of the own vehicle position detected by the own vehicle position judgment unit;
a coding processing unit for transforming the measurement information and the swept path stored in the is storage unit into coded data;
an information transmission unit for transmitting the coded data of the one of a first information including said measurement information and a second information including said measurement information and the swept path, to the beacon, when passing through the beacon; and
an instruction information reception unit for receiving instruction information including instructions of a measurement method of the measurement information and a coding method of the coded data from the beacon. - View Dependent Claims (9, 10, 11)
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Specification