Bridge crane-below multilayer laser scanning container truck and lifting appliance locking head aligning method

Abstract

The invention discloses a bridge crane-below multilayer laser scanning container truck and lifting appliance locking head aligning method. According to the bridge crane-below multilayer laser scanning container truck and lifting appliance locking head aligning method, two multilayer laser scanners are adopted for automatic identifying of working lanes, multilayer orthogonal scanning of heavily-loaded or unloaded container trucks on a plurality of working lanes is carried out at the same time, and container truck and lifting appliance locking head aligning is realized. According to the bridge crane-below multilayer laser scanning container truck and lifting appliance locking head aligning method, one multilayer laser scanner is immobilized, and the scanning surface of the immobilized multilayer laser scanner is designed to be vertical to the forward direction of the lanes; scanning of all the lanes below the bridge crane, automatic identifying of current working lanes, and measuring of the left and right deviation distance of the container trucks on the lanes are carried out at the same time; the other multilayer laser scanner arranged on a holder is driven to rotate accordingly, and the scanning surface of the multilayer laser scanner is designed to be parallel to the forward direction of the lanes; double working lanes below double lifting appliance bridge crane are adopted, so that two scanning surfaces are used for scanning one lane, and scanning of two lanes can be carried out at the same time, and measuring of the front and back deviation distance of the container trucks on the lanes is carried out; a microprocessor is connected with a bridge crane PLC, and is used for sending adjusting commands to the bridge crane PLC based on the position of the container trucks; and the bridge crane PLC is used for adjusting the position of the lifting appliance and oil cylinder telescoping so as to realize aligning of the container trucks with lifting appliance four locking heads.

Description

technical field [0001] The invention relates to the lock head alignment between a container truck and a spreader used in the container loading and unloading operation, and is especially suitable for the double-box spreader of the port container bridge crane to lift and transport the container in the loading and unloading operation. Background technique [0002] At present, the container truck and spreader alignment system: install a light curtain on the side column beam of the bridge crane to locate the container truck entering the bridge crane operation area, which is easily interfered by passing trucks in other lanes; install it in the center of the bridge crane beam A programmed rotary pan / tilt and a laser scanning rangefinder can only realize the front and rear alignment of the truck and spreader on the driveway, but cannot achieve the alignment of the truck and the spreader. Contents of the invention [0003] The invention uses two multi-layer laser scanners to perfor...

AI Technical Summary

Problems solved by technology

[0002] At present, the container truck and spreader alignment system: install a light curtain on the side column beam of the bridge crane to locate the container truck entering the bridge crane operation area, which is easily interfered by passing trucks in other lanes; install it in the center of the bridge crane beam A programmed rotary pan / tilt and a laser scanning rangefinder can only realize the front and rear alignment of the truck and spreader on the driveway, but cannot realize the alignment of the truck and the spreader.

Images