| 摘要 |
A road obstacle detection system according to the present invention includes: an oscillator for generating a high frequency signal for a radar; a radar transmitter for radiating the generated high frequency signal to the air; a radar receiver for receiving the high frequency signal returned by being reflected from an obstacle; a transmission and receiving rotation device for rotating the radar transmitter and the radar receiver to the left or to the right by a fixed angle, in order to detect obstacles located in the front; a comparison calculation part for measuring a distance to the obstacle, by obtaining a time difference between the radiation time of the radar transmitter and the receiving time of the radar receiver; an azimuth detection part for measuring an azimuth signal about a front obstacle using a terrestrial magnetic field and then detecting an azimuth value by converting the azimuth signal into a numeric value; a position calculation part for coordinating the position of obstacles, by referring to a GPS coordinate of a driver boarding vehicle and the attribute (distance and azimuth) of the detected obstacle; and a navigation which displays the obstacles located in front of the boarding vehicle at one spot of a screen corresponding to the coordinate, and removes the obstacles moved to the rear of the boarding vehicle from the screen. The present invention can prevent multiple pile-up in advance which can occur by not being able to recognize an incident in the front, and can provide comfortable and safe driving environment to a driver, by displaying the condition (for example: vehicle and obstacle etc) on a road away in tens of meters or hundreds of meters in the front which can not be visible by naked eyes or is difficult to be seen by a driver, like a frequent foggy area, on a display device like the navigation. [Reference numerals] (110) Oscillator; (120) Radar transmitter; (130) Radar receiver; (150) Comparison calculation part; (160) Azimuth detection part; (210) Display; (220) Obstacle display part; (230) Obstacle removal part; (240) Position calculation part; (AA) Obstacle; (BB) Reflection |
