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US 10,883,840 B2Granted
System and method for localizing vehicle
AssigneesHyundai Motor Company, Kia Motors Cornoration
InventorsHyo Jeong Kim, Sang Gu Kwon
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a system and a method for localizing a vehicle. A vehicle terminal acquires location information of a vehicle and transmits the acquired location information to the mobile terminal, then determines whether the vehicle enters a poor reception quality zone where a reception of a satellite signal is poor. Then, the vehicle terminal, when the vehicle enters the poor reception quality zone, receives map information of the poor reception quality zone transmitted from the mobile terminal, and corrects a current location of the vehicle using the map information of the poor reception quality zone.
Claims15
A vehicle localization system comprising:
- a mobile terminal configured to provide map information;
- and
- a vehicle terminal configured to calculate a current location of a vehicle using the map information when the vehicle enters a poor reception quality zone where a reception of a satellite signal is poor and to correct the current location of the vehicle based on the map information of the poor reception quality zone, wherein the map information of the poor reception quality zone includes a road attribute, a starting location, an ending location, and a road gradient of the poor reception quality zone;
- wherein the vehicle terminal includes:
- a communication module configured to communicate with the mobile terminal;
- a location measurement module configured to measure a vehicle location using the satellite signal;
- a dead reckoning module configured to estimate the vehicle location based on a travel distance and a heading angle of the vehicle;
- and
- a processor configured to receive map information of the poor reception quality zone from the mobile terminal and to correct the current location of the vehicle.
6 more elements
A vehicle localization method comprising:
- acquiring, by a vehicle terminal, location information of a vehicle;
- transmitting, by the vehicle terminal, the acquired location information to a mobile terminal;
- determining, by the vehicle terminal, whether the vehicle enters a poor reception quality zone where a reception of a satellite signal is poor;
- receiving, by the vehicle terminal, map information of the poor reception quality zone transmitted from the mobile terminal when the vehicle has entered the poor reception quality zone, wherein the map information of the poor reception quality zone includes a road attribute,
- a starting location, an ending location, and a road gradient of the poor reception quality zone;
- and
- correcting, by the vehicle terminal, a current location of the vehicle using the map information of the poor reception quality zone;
- wherein receiving the map information of the poor reception quality zone includes:
- map-matching, by the mobile terminal, a measured location and an estimated location included in the location information onto an electronic map;
- selecting, by the mobile terminal, a current road-zone matched with the poor reception quality zone where the vehicle is located, based on the map-matched location information;
- extracting, by the mobile terminal, map information of the current road-zone from the electronic map;
- and
- transmitting, by the mobile terminal, the extracted map information of the current road-zone to the vehicle terminal.
10 more elements
A vehicle localization method comprising:
- receiving, by a mobile terminal, the location information acquired by a vehicle terminal mobile terminal;
- map-matching, by the mobile terminal, a measured location and an estimated location included in the location information onto an electronic map;
- selecting, by the mobile terminal, a current road-zone matched with the poor reception quality zone where the vehicle is located, based on the map-matched location information;
- extracting, by the mobile terminal, map information of the current road-zone from the electronic map;
- transmitting, by the mobile terminal, the extracted map information of the current road-zone to the vehicle terminal;
- receiving, by the vehicle terminal, map information of the poor reception quality zone transmitted from the mobile terminal when the vehicle has entered a poor reception quality zone where a reception of a satellite signal is poor, wherein the map information of the poor reception quality zone includes a road attribute, a starting location, an ending location, and a road gradient of the poor reception quality zone;
- and
- correcting, by the vehicle terminal, a current location of the vehicle using the map information of the poor reception quality zone;
- wherein correcting the current location of the vehicle includes correcting, by the vehicle terminal, the current location of the vehicle using the calculated error information;
- wherein the map-matching onto the electronic map comprises calculating, by the mobile terminal, an error between the estimated location and the map-matched estimated location;
- and
- wherein the mobile terminal transmits the calculated error information together with the map information of the current road-zone.
9 more elements
Dependencies are inferred from the claim text.