System and method for detecting obstacles

An obstacle detecting system, comprising:

• a transmitting unit configured to emit a laser signal;
• a micro electro mechanical system (MEMS) scanning mirror configured to reflect the laser signal to scan detecting regions and configured to divide the detecting regions into an obstacle detecting region and cut-in detecting regions at point intervals different among the detecting regions;
• a receiving unit configured to receive the laser signal transmitted from the MEMS scanning mirror and configured to detect information of an object detected in the obstacle detecting region and the cut-in detecting regions;
• and
• a processing unit which issues an alarm or transmits a braking command based on the information detected from the receiving unit,
• wherein the obstacle detecting region is set at an angle of view at which an obstacle in front of a vehicle is detected and the cut-in detecting regions are set at angles of view at which a cut-in situation from a vehicle in a next lane is detected,
• wherein the information of the object detected comprises at least one value selected from the group consisting of a coordinate value, a distance value, and a reflection value, and
• wherein the processing unit comprises:
• an obstacle detecting unit configured to detect whether the object is the obstacle based on the information of the object detected in the obstacle detecting region
• an obstacle classifying unit configured to classify the obstacle into a vehicle and a pedestrian based on the information of the object detected in the obstacle detecting region;
• a cut-in detecting unit configured to detect whether there is the cut-in situation based on the information of the object detected in the obstacle detecting region;
• and
• a control unit configured to issue the alarm or transmit the braking command based on the classification of the obstacle from the obstacle classifying unit and detection of the cut-in situation from the cut-in detecting unit.