Blind spot warning system and method
The present invention relates to a blind spot warning system and method for sensing a vehicle in a blind spot of a vehicle and warning thereof in advance, the blind spot warning system comprising a line-to-line space-generating unit that generates, in real time, line-to-line space data, which changes when the host vehicle is driven; a distance-measuring unit, which measures the distance between the host vehicle and a target vehicle located in a blind spot of the host vehicle; an input unit, which receives the line-to-line space data and the distance measurement information; a comparison unit, which compares the target vehicle distance data with the line-to-line space data to decide whether the target vehicle is located within the threshold vehicle-to-vehicle distance; and a warning output unit for outputting a warning if the target vehicle is located within the threshold vehicle-to-vehicle distance in the blind spot.
1. A blind spot warning system for warning whether a target vehicle is located in a blind spot formed at a posterolateral area of a host vehicle, the system comprising;
a line-to-line space-generating unit generating line-to-line space data with respect to a lane width, which changes when the host vehicle is driven, in real time;
at least one distance-measuring unit measuring a distance between the host vehicle and a target vehicle located in a side zone or a rear zone of the host vehicle;
an input unit receiving the line-to-line space data from the line-to-line space-generating unit and receiving distance measurement information from the distance-measuring unit;
a comparison unit comparing target vehicle distance data based on the distance measurement information transferred from the distance-measuring unit with the line-to-line space data to decide whether the target vehicle is located within a threshold vehicle-to-vehicle distance determined based on the line-to-line space data;
a conversion unit for converting the line-to-line space data received from the line-to-line space-generating unit via the input unit into data for the threshold vehicle-to-vehicle distance; and
a warning output unit outputting a warning if the target vehicle is located within the threshold vehicle-to-vehicle distance in the blind spot formed at the posterolateral area of the host vehicle.
2. The blind spot warning system of claim 1 , wherein the line-to-line space-generating unit comprises an image-acquiring unit, which films a line at the host vehicle to generate an image of the line; and an image-processing unit for deciphering the line image to generate the line-to-line space data.
3. The blind spot warning system of claim 1 , wherein the line-to-line space-generating unit comprises at least some functional part of a lane keeping assistance system mounted in the host vehicle for warning of lane departure by the host vehicle.
4. The blind spot warning system of claim 1 , wherein the warning output unit comprises a display device for displaying the host vehicle and the target vehicle on a screen.
5. A blind spot warning method for warning whether a target vehicle is located in a blind spot formed at a posterolateral area of a host vehicle in a blind spot warning system mounted in the host vehicle, the method comprising steps of;
generating line-to-line space data with respect to a lane width of a road, which changes when the host vehicle is driven, through a line-to-line space-generating unit in real time;
measuring a distance between the host vehicle and a target vehicle which is located in a side zone or a rear zone of the host vehicle, during driving of the host vehicle;
receiving the line-to-line space data from the line-to-line space-generating unit and receiving distance measurement information from a distance-measuring unit;
generating target vehicle distance data based on of the distance measurement information from the distance-measuring unit;
comparing the target vehicle distance data with the line-to-line space data to decide whether the target vehicle is located within a threshold vehicle-to-vehicle distance, which is determined based on the line-to-line space data;
a step of generating the threshold vehicle-to-vehicle distance based on the line-to-line space data after the line-to-line space data is received from the line-to-line space-generating unit; and
outputting a warning if the target vehicle is located within the threshold vehicle-to-vehicle distance in the blind spot formed at the posterolateral area of the host vehicle.
6. The blind spot warning method of claim 5 , wherein the step of generating the line-to-line space data comprises steps of filming a line at the host vehicle to generate an image of the line and deciphering the image of the line to generate the line-to-line space data.
7. The blind spot warning method of claim 5 , wherein the step of generating the line-to-line space data comprises a step of acquiring the line-to-line space data from a lane keeping assistance system mounted in the host vehicle for warning of lane departure by the host vehicle.
8. The blind spot warning method of claim 5 , wherein the step of outputting the warning signal comprises a step of outputting the warning through a display device that displays the host vehicle and the target vehicle.