Apparatus and method for detecting location of vehicle
An apparatus and method for detecting the location of a vehicle using results sensed by sensing devices installed outside the vehicle and the internal information of the vehicle without obtaining the current location information of the vehicle using signals transmitted from a Global Positioning System (GPS) satellite, the apparatus for detecting the location of a vehicle includes a location information reception unit for receiving location information that is generated by sensing a vehicle passing by a sensing point and that corresponds to the sensing point. A location detection unit estimates a current location of the vehicle based on information sensed by internal sensors of the vehicle and control information for a vehicle manipulation part while the location information is not received, and corrects the estimated current location of the vehicle using received location information when the location information is received.
1. An apparatus for detecting a location of a vehicle, comprising:
a location information reception unit for receiving location information that is generated by one or more external sensors from sensing a vehicle passing by a sensing point and that corresponds to the sensing point; and
a location detection unit for estimating a current location of the vehicle based on information sensed by internal sensors of the vehicle and control information for a vehicle manipulation part while the location information is not received, and correcting the estimated current location of the vehicle using received location information when the location information is received.
2. The apparatus of claim 1 , wherein the location detection unit comprises:
a communication unit for performing wireless communication with an external sensing device that transmits the location information;
a sensor information collection unit for collecting pieces of information sensed by at least one of an ultrasonic sensor, a yaw rate sensor for vehicle dynamics control, a wheel speed sensor, and a velocity sensor which are mounted in the vehicle;
a control information collection unit for collecting pieces of control information for at least one of a steering wheel, a brake, and an accelerator of the vehicle; and
a location calculation unit for performing deduced driving based on the pieces of information collected by both the sensor information collection unit and the control information collection unit, thus estimating the location of the vehicle.
3. The apparatus of claim 2 , wherein the location calculation unit corrects results obtained by performing the deduced driving in real time, based on the location information received in real time from the external sensing device.
4. The apparatus of claim 1 , wherein the location information is received from an external sensing device located at regular sections of a road on which the vehicle is driven.
5. The apparatus of claim 4 , wherein the external sensing device comprises:
a communication unit for performing wireless communication with the location information reception unit;
a sensor unit for sensing a vehicle passing by a sensing area corresponding to a specific radius from a point at which the external sensing device is located; and
a vehicle awareness unit for generating location information of the vehicle based on results sensed by the sensor unit.
6. A method of detecting a location of a vehicle, the method being configured to detect the vehicle location by a location detection apparatus mounted in the vehicle while operating in conjunction with an external sensing device located at regular sections of a road;
the location detection apparatus requesting location information from the external sensing device;
receiving a location information response, which includes results of sensing of the vehicle corresponding to the location information request, from the external sensing device;
estimating a current location of the vehicle based on information sensed by internal sensors of the vehicle and control information for the vehicle; and
correcting the estimated current location of the vehicle based on the results of sensing of the vehicle.
7. The method of claim 6 , wherein the correcting the current location is configured such that the vehicle is driven a certain distance using the detected location of the vehicle and the location of the vehicle is corrected in real time based on a location information response received again from the external sensor device, thus detecting the location of the vehicle.
8. The method of claim 6 , wherein the requesting the location information is configured to request location information corresponding to an identification (ID) of the vehicle.
9. The method of claim 6 , wherein the estimating the current location is performed based on both the sensed information that has been sensed by at least one of an ultrasonic sensor, a yaw rate sensor for vehicle dynamics control, a wheel speed sensor, and a velocity sensor which are mounted in the vehicle, and the control information for at least one of a steering wheel, a brake, and an accelerator of the vehicle.