A height-adjustable calibration system and calibration method

Abstract

The invention discloses a height-adjustable calibration system and a calibration method. The system includes: a calibration piece, a field, a two-dimensional code matrix set on the field, and an automatic guiding device. The calibration piece is provided with Four two-dimensional codes, the front end of the automatic guiding device is equipped with a radar, and the side or center of the automatic guiding device is equipped with a bottom-view camera. When the automatic guiding device moves to the preset position on the two-dimensional code matrix , the two-dimensional code matrix is ​​photographed by the bottom-view camera, and the relative positional relationship between the camera and the automatic guidance device is calculated according to the imaging results of a plurality of two-dimensional codes of the two-dimensional code matrix in the bottom-view camera; through the auxiliary camera Take pictures of the four two-dimensional codes and two-dimensional code matrix affixed on the calibration piece, and calculate the relationship between the calibration piece and the two-dimensional code matrix; determine the position of the radar and the calibration piece by scanning the calibration piece on the radar plane , the relative positions of the radar and the automatic guidance device are obtained according to the positional relationship between the calibration piece, the automatic guidance device and the two-dimensional code matrix. The invention improves the calibration and positioning accuracy of the AGV, and has the advantages of convenient maintenance, low cost and high compatibility.

Description

technical field [0001] The invention relates to the technical field of intelligent logistics calibration, in particular to a height-adjustable calibration system and calibration method. Background technique [0002] Automated Guided Vehicle (AGV for short), refers to a transport vehicle equipped with automatic guidance devices such as electromagnetic or optical, capable of driving along a prescribed guiding path, with safety protection and various transfer functions, in industrial applications A truck that does not require a driver uses a rechargeable battery as its power source. Generally, the computer can be used to control its travel route and behavior, or the electromagnetic track can be used to set up its travel route. The electromagnetic track is pasted on the floor, and the unmanned van will move and act according to the information brought by the electromagnetic track. [0003] AGV is characterized by wheeled movement. Compared with walking, crawling or other non-wh...

AI Technical Summary

Problems solved by technology

[0009] In view of this, the present invention provides a height-adjustable calibration system and calibration method, the main purpose of which is to solve the problem that the relative position among the current AGV body, camera, and radar is determined by machining accuracy and assembly tolerance, etc. The error is large, which leads to inaccurate AGV positioning and high maintenance costs

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