According to the present invention, a set of an automatic lifting device and automatic inclination adjusting device is arranged beside the external container
truck parking lane of an automated terminal, a
laser scanner is arranged on the automatic lifting device and automatic inclination adjusting device, and performs lifting and inclining detection on the locking holes of a no-load container flatcar entering the lane, the position of the nearest locking hole or the positions of the multiple locking holes are measured, the approximate positions of all the locking holes on the container flat car are estimated, and accurate detection is performed to find the exact positions of all the locks, such that the precise positioning of the container flat car is achieved; the
laser scanner horizontally scans the heavy-load container
truck entering the lane, and adjusts the automatic lifting device to a corresponding height according to the lifting tool positioning
signal and the lifting tool height
signal, the gap between the container and the flat car is measured, the unlocking of the lock of the container
truck is prevented, and the container truck is lifted; and with the method of the present invention, the precise lock positioning and anti-lifting detection of the external container truck in the lifting
yard of the automated field can be achieved.