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Method and device for positioning container lorry mobile in port

A container truck and a positioning method technology are applied in the field of port motion container truck positioning methods and devices, which can solve the problems affecting the system positioning speed and the improvement of loading and unloading efficiency, the large amount of computer processing data, and the huge volume, etc. Manipulation flexibility, simple structure, and the effect of processing a small amount of data

Inactive Publication Date: 2009-08-26
SHANGHAI MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These container space positioning systems have complex structures, large volumes, and large amounts of data processed by computers, which affect the positioning speed of the system and the improvement of loading and unloading efficiency.

Method used

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  • Method and device for positioning container lorry mobile in port
  • Method and device for positioning container lorry mobile in port
  • Method and device for positioning container lorry mobile in port

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] see figure 1 , the camera equipment takes images of calibration reference objects (such as the position line of the correct parking space), converts them into electrical signals, and transmits them to the computer for processing. The mathematical relationship between the coordinates in the image and the coordinate homography of the object in the actual space, and determine the position line equation parameters of the correct parking space in the actual space. After completing the above calibration preparations, start the positioning detection of the container truck coming from opposite sides. After the computer collects the electrical signal of the image of the current container truck, it extracts the image coordinates of the front edge of the container or the front edge of the truck floor, converts its coordinates in the actual space by the H matrix,...

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Abstract

The invention provides a positioning method and device for a container truck in a port. The positioning method includes the following steps: (1) image shooting, (2) image transmission and collection, (3) H matrix calibration, (4) front edge extraction, ( 5) distance calculation, (6) data output display. The positioning device includes: (1) a high-speed camera, (2) a computer, (3) an electronic display screen, (4) a connection transmission line between the high-speed camera and the computer, and between the computer and the electronic display screen. The present invention calculates the distance from the current position of the container truck to the correct parking space and displays it on the electronic display screen in front of the driver, so that the driver can park correctly and quickly in place according to the prompt information on the electronic display screen, thereby improving the safety of the container truck. Loading and unloading efficiency, and the degree of automation of terminal container loading and unloading operations.

Description

technical field [0001] The invention relates to a positioning detection technology, in particular to a positioning method and device for a container truck in a port. Background technique [0002] Containers are important equipment in the logistics industry. The loading and unloading of containers is an important link in logistics. The degree of automation of its loading and unloading operations is one of the key factors that determine the efficiency of logistics. At present, the loading and unloading of containers in my country's ports is still in a semi-automatic state. Part of the operations in the container loading and unloading process are realized by crane operations. However, the spatial position of the container relative to the spreader, the spatial position of the container relative to the truck, and the relative position of the container The positioning links such as the spatial position of the container basically rely on manual experience estimation to carry out the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/16
Inventor 贺俊吉史立宓为建肖洋
Owner SHANGHAI MARITIME UNIVERSITY