Prevention of tractor trailers being lifted by gantry cranes
When gantry cranes lift containers from trucks, sometimes the truck itself is lifted, too. There is a simple solution available to detect when this is happening – installing the LMS111 2D laser scanner next to the gantry crane's driving path. The LMS111 monitors the area around the lorry's front and rear wheels at about 30 cm above the ground when containers are being unloaded. If the lorry starts to move upward as the gantry crane lifts a container, the crane operator will be sent a signal to notify them of this and the unloading process can be stopped.