Vehicle position tracking system
First Claim
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1. A vehicle position tracking system for tracking a position of a vehicle comprising:
- an in-vehicle device mounted on the vehicle; and
a center device mounted in an external center,wherein the in-vehicle device transmits information to the center device via a mobile communication network so that the center device tracks the position of the vehicle,wherein the in-vehicle device includes;
a GPS detector for detecting a vehicle position of the vehicle based on a GPS signal from a GPS satellite;
an environmental information obtaining element for obtaining environmental information, which includes a plurality of meteorological data of an outside of the vehicle as detection data and a plurality of detection time data, wherein each meteorological data corresponds to a respective detection time data,a communication element for communicating with the mobile communication network; and
a controller for controlling the communication element to transmit the environmental information when reception of the GPS signal via the GPS detector is interrupted,wherein the center device includes;
a communication information obtaining element for obtaining the environmental information from the in-vehicle device via the mobile communication network;
a database for obtaining observation information and for storing the observation information at every time when the database obtains the observation information, wherein the observation information includes a plurality of meteorological data observed at each of a plurality of observation points as observation data, a plurality of observation time data and observation position data of a respective observation point, and wherein each meteorological data at a respective observation point corresponds to a respective observation time data; and
an estimation unit for estimating a moving route of the vehicle based on the environmental information,wherein the estimation unit retrieves a plurality of observation data with a plurality of observation time data in such a manner that each observation data corresponds to respective detection data, each observation time data corresponds to respective detection time data, andwherein the estimation unit arranges a plurality of observation position data corresponding to a plurality of retrieved observation data in a chronological order so that the estimation unit estimates the moving route of the vehicle.
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Abstract
A vehicle position tracking system includes: an in-vehicle device; and a center device. The in-vehicle device includes: a GPS detector for detecting a vehicle position; an environmental information obtaining element for obtaining environmental information having detection data; a communication element for communicating with the center device; and a controller for controlling the communication element to transmit the environmental information when reception of a GPS signal via the GPS detector is interrupted. The center device includes: a communication information obtaining element for obtaining the environmental information from the in-vehicle device; a database for obtaining observation information having observation data; and an estimation unit for estimating a moving route of the vehicle based on the environmental information such that the estimation unit arranges multiple observation position data corresponding to multiple retrieved observation data in a chronological order. The estimation unit retrieves multiple observation data corresponding to multiple detection data.
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Citations
8 Claims
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1. A vehicle position tracking system for tracking a position of a vehicle comprising:
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an in-vehicle device mounted on the vehicle; and a center device mounted in an external center, wherein the in-vehicle device transmits information to the center device via a mobile communication network so that the center device tracks the position of the vehicle, wherein the in-vehicle device includes; a GPS detector for detecting a vehicle position of the vehicle based on a GPS signal from a GPS satellite; an environmental information obtaining element for obtaining environmental information, which includes a plurality of meteorological data of an outside of the vehicle as detection data and a plurality of detection time data, wherein each meteorological data corresponds to a respective detection time data, a communication element for communicating with the mobile communication network; and a controller for controlling the communication element to transmit the environmental information when reception of the GPS signal via the GPS detector is interrupted, wherein the center device includes; a communication information obtaining element for obtaining the environmental information from the in-vehicle device via the mobile communication network; a database for obtaining observation information and for storing the observation information at every time when the database obtains the observation information, wherein the observation information includes a plurality of meteorological data observed at each of a plurality of observation points as observation data, a plurality of observation time data and observation position data of a respective observation point, and wherein each meteorological data at a respective observation point corresponds to a respective observation time data; and an estimation unit for estimating a moving route of the vehicle based on the environmental information, wherein the estimation unit retrieves a plurality of observation data with a plurality of observation time data in such a manner that each observation data corresponds to respective detection data, each observation time data corresponds to respective detection time data, and wherein the estimation unit arranges a plurality of observation position data corresponding to a plurality of retrieved observation data in a chronological order so that the estimation unit estimates the moving route of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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Current AssigneeDENSO Corporation
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Original AssigneeDENSO Corporation
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InventorsIshihara, Toshiro
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Application NumberUS13/065,506Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current701/36CPC Class CodesG08G 1/20 Monitoring the location of ...
