Multi-radar based detection device and detection method for target object

A multi-radar based detection device for a target object, comprising:

• a human-machine interface;
• a transceiver configured to receive a first detection result corresponding to a first detection space and a second detection result corresponding to a second detection space from a plurality of radars, wherein the plurality of radars monitor the first detection space and the second detection space and generate the first detection result and the second detection result, respectively;
• and
• a processor communicatively coupled to the human-machine interface and the transceiver to receive the first detection result and the second detection result and configured to perform:
• detecting the target object according to the first detection result and the second detection result;
• determining that the first detection space enters a first status in response to determining that the target object in the first detection space moves to an overlapping area between the first detection space and the second detection space based on the first detection result;
• outputting first information via the human-machine interface in response to determining that the first detection space enters the first status, wherein the first information indicates that the target object is located in the first detection space;
• determining that the second detection space enters a second status in response to determining that the target object, which was not detected in the second detection space, appears in the overlapping area based on the second detection result;
• outputting second information via the human-machine interface in response to determining that the second detection space enters the second status, wherein the second information indicates that the target object is not in the second detection space;
• obtaining a plurality of point clouds respectively corresponding to a plurality of time points from the first detection result;
• performing an object detection on the plurality of point clouds to generate a plurality of bounding boxes respectively corresponding to the plurality of point clouds;
• determining an inclination angle change of the target object during a default period according to the plurality of bounding boxes;
• and
• determining that the target object fell in response to the inclination angle change being greater than an inclination angle threshold value.