Map generation system, map generation device, map generation method, and program
First Claim
1. A map generation system, comprising an electronic device,the electronic device comprising:
- an extraction unit configured to collect vehicle speed information, which includes at least a speed, acceleration, and deceleration, from a vehicle and configured to extract rapid deceleration information, which includes a first location where a rapid deceleration event satisfying predetermined conditions has occurred, and a traveling direction of the vehicle at the time when the rapid deceleration event has occurred from the collected vehicle speed information;
a storage unit that stores map data;
a division unit configured to generate mesh map data by dividing the map data stored in the storage unit into a plurality of meshes in a predetermined size and a predetermined number of divisions; and
an estimation unit configured to estimate a location that requires caution when the vehicle travels therethrough, as a caution-required place, based on the rapid deceleration information extracted by the extraction unit and the mesh map data generated by the division unit,wherein intersection location information indicating a location of an intersection is included in the map data,the estimation unit estimates the location of the intersection on the map data present in a front mesh in front of the mesh which includes the first location indicated by the rapid deceleration information, as the caution-required place,the vehicle speed information is information including vehicle speed information accumulated for a predetermined period of time, andthe extraction unit levels the vehicle speed information in the predetermined period of time.
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Accused Products
Abstract
A map generation system includes: an extraction unit that collects vehicle speed information, which includes at least a speed, acceleration, and deceleration, from a vehicle and that extracts rapid deceleration information, which includes a first location where a rapid deceleration event satisfying predetermined conditions has occurred, and a traveling direction of the vehicle at the time when the rapid deceleration event has occurred from the collected vehicle speed information; a storage unit that stores map data; a division unit that generates mesh map data by dividing the map data stored in the storage unit into a plurality of meshes in a predetermined size and a predetermined number of divisions; and an estimation unit that estimates a location that requires caution when the vehicle travels therethrough, as a caution-required place, based on the rapid deceleration information extracted by the extraction unit and the mesh map data generated by the division unit.
6 Citations
12 Claims
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1. A map generation system, comprising an electronic device,
the electronic device comprising: -
an extraction unit configured to collect vehicle speed information, which includes at least a speed, acceleration, and deceleration, from a vehicle and configured to extract rapid deceleration information, which includes a first location where a rapid deceleration event satisfying predetermined conditions has occurred, and a traveling direction of the vehicle at the time when the rapid deceleration event has occurred from the collected vehicle speed information; a storage unit that stores map data; a division unit configured to generate mesh map data by dividing the map data stored in the storage unit into a plurality of meshes in a predetermined size and a predetermined number of divisions; and an estimation unit configured to estimate a location that requires caution when the vehicle travels therethrough, as a caution-required place, based on the rapid deceleration information extracted by the extraction unit and the mesh map data generated by the division unit, wherein intersection location information indicating a location of an intersection is included in the map data, the estimation unit estimates the location of the intersection on the map data present in a front mesh in front of the mesh which includes the first location indicated by the rapid deceleration information, as the caution-required place, the vehicle speed information is information including vehicle speed information accumulated for a predetermined period of time, and the extraction unit levels the vehicle speed information in the predetermined period of time. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A map generation device comprising an electronic device, the electronic device comprising:
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an extraction unit configured to collect vehicle speed information, which includes at least a speed, acceleration, and deceleration, from a vehicle and that extracts rapid deceleration information, which includes a first location where a rapid deceleration event satisfying predetermined conditions has occurred, and a traveling direction of the vehicle at the time when the rapid deceleration event has occurred from the collected vehicle speed information; a storage unit that stores map data; a division unit configured to generate mesh map data by dividing the map data stored in the storage unit into a plurality of meshes in a predetermined size and a predetermined number of divisions; and an estimation unit configured to estimate a location that requires caution when the vehicle travels therethrough, as a caution-required place, based on the rapid deceleration information extracted by the extraction unit and the mesh map data generated by the division unit, wherein intersection location information indicating a location of an intersection is included in the map data, and the estimation unit estimates the location of the intersection on the map data present in a front mesh in front of the mesh which includes the first location indicated by the rapid deceleration information, as the caution-required place, the vehicle speed information is information including vehicle speed information accumulated for a predetermined period of time, and the extraction unit levels the vehicle speed information in the predetermined period of time. - View Dependent Claims (8)
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9. A map generation method, comprising:
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a first step collecting, by using an electronic device, vehicle speed information, which includes at least a speed, acceleration, and deceleration, from a vehicle and extracting rapid deceleration information, which includes a first location where a rapid deceleration event satisfying predetermined conditions has occurred, and a traveling direction of the vehicle at the time when the rapid deceleration event has occurred from the collected vehicle speed information; a second step of, by using the electronic device, generating mesh map data by dividing map data stored in a storage device into a plurality of meshes in a predetermined size and a predetermined number of divisions; and a third step of estimating, by using the electronic device, a location that requires caution when the vehicle travels therethrough, as a caution-required place, based on the rapid deceleration information extracted in the first step and the mesh map data generated in the second step, wherein intersection location information indicating a location of an intersection is included in the map data, and the third step comprises a fourth step which includes estimating the location of the intersection on the map data present in a front mesh in front of the mesh which includes the first location indicated by the rapid deceleration information, as the caution-required place, wherein the vehicle speed information is information including vehicle speed information accumulated for a predetermined period of time, and the first step comprises a fifth step which levels the vehicle speed information in the predetermined period of time. - View Dependent Claims (10)
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11. A non-transitory computer readable medium including program causing a computer including a storage unit that stores map data to execute:
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a first step of collecting vehicle speed information, which includes at least a speed, acceleration, and deceleration, from a vehicle and extracting rapid deceleration information, which includes a first location where a rapid deceleration event satisfying predetermined conditions has occurred, and a traveling direction of the vehicle at the time when the rapid deceleration event has occurred from the collected vehicle speed information; a second step of generating mesh map data by dividing the map data stored in the storage unit into a plurality of meshes in a predetermined size and a predetermined number of divisions; and a third step of estimating a location that requires caution when the vehicle travels therethrough, as a caution-required place, based on the rapid deceleration information extracted in the first step and the mesh map data generated in the second step, wherein intersection location information indicating a location of an intersection is included in the map data, and the third step comprises a fourth step which includes estimating the location of the intersection on the map data present in a front mesh in front of the mesh which includes the first location indicated by the rapid deceleration information, as the caution-required place, wherein the vehicle speed information is information including vehicle speed information accumulated for a predetermined period of time, and the first step comprises a fifth step which levels the vehicle speed information in the predetermined period of time. - View Dependent Claims (12)
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Specification