Method and system of blind spot detection for a vehicle

A system of blind spot detection for a vehicle, wherein the vehicle includes a first vehicle body and a second vehicle body dragged by the first vehicle body, the system of blind spot detection comprising:

• a first sensor configured to obtain a turning angle information of the second vehicle body relative to the first vehicle body while the vehicle is moving;
• a second sensor configured to sense an object approaching the vehicle;
• and
• a processor communicating with the first sensor and the second sensor and configured to determine a predetermined information related to the vehicle and a second sensor, dynamically define a blind spot area around the vehicle according to the turning angle information and the predetermined information, and receive a sensing signal regarding the object from the second sensor to determine whether the object is located in the blind spot area,
• wherein the determining the predetermined information related to the vehicle and the second sensor by the processor comprises determining a coordinate where the second sensor is installed on the first vehicle body.