An Assessment of Container Handling Performance Using a Two- and Three-Dimensional Remote Crane Display

摘要

A local freight company has implemented a 2D camera-based remote crane system to pick-up and land containers from a yard onto a prime mover and vice versa. However, a two-dimensional (2-D) camera-based system deprives the operator of the depth perception required for container handling. In particular, the operator may encounter difficulties in judging the speed of container landing and the distance of the container to the prime mover chassis or to another container. To support depth perception, a three-dimensional (3-D) camera and display system may be developed to enable stereoscopic vision. A mock-up of such a system that includes basic crane controls has been built, to assess the efficacy of the proposed 3-D set-up in terms of performance time, accuracy and force of impact of container positioning and landing. The assessment involves performance testing with subjects. Initial test results show that depth perception supported by the 3-D stereoscopic display setup enhanced performance of container landing, while no significant positioning performance enhancement was observed between 2-D and 3-D displays.