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Method for dynamically sensing position of lifting appliance of portal crane based on millimeter wave radar

A gantry crane, millimeter wave radar technology, applied in the direction of load hoisting components, transportation and packaging, can solve the problem that the intelligent management system cannot accurately obtain the precise position of the container, affects the hoisting efficiency, and is prone to deviation, etc. Improve work efficiency, simple measurement, and convenient installation

Pending Publication Date: 2022-03-18
SHANGHAI RAILWAY BUREAU +1
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Problems solved by technology

However, the cable is likely to be in a loose state during the lowering process, and the diameter of the winch is always changing as the rope is lowered. At this time, it is easy to produce deviations when using the value of the rotary encoder to calculate the distance between the spreader and the container. , resulting in the inability of the intelligent management system to accurately obtain the precise location of the container, which affects the lifting efficiency

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  • Method for dynamically sensing position of lifting appliance of portal crane based on millimeter wave radar

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Embodiment Construction

[0010] The specific implementation manners of the present invention will be described in detail below, and the described embodiments are only illustrations and explanations of the present invention, and do not constitute the only limitation to the present invention.

[0011] Such as figure 1 Shown, the present invention comprises the following concrete steps:

[0012] Step 1. Set up the millimeter-wave radar on the trolley traveling horizontally of the gantry crane as the measuring point;

[0013] Step 2. Set the reflection cone on the spreader of the gantry crane that lifts and lowers with the winch at the same time, as a fixed reference point;

[0014] Step 3. Through the induction reflection between the millimeter-wave radar and the reflection cone, the measured actual distance h of the lowered spreader and the deviation angle θ are measured to obtain the final height h*sin(θ).

[0015] The basic principles and main features of the present invention and the advantages of ...

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Abstract

The invention discloses a method for dynamically sensing the position of a gantry crane sling based on a millimeter-wave radar, and belongs to the technical field of railway container crane hoisting identification. A millimeter-wave radar is arranged on a transversely-walking trolley of the portal crane and serves as a fixed reference point, and a reflection cone is arranged on a lifting tool, ascending and descending along with a winch, of the portal crane; and the actual descending distance of the lifting appliance is measured through inductive reflection between the millimeter-wave radar and the reflection cone. According to the method, a reflecting cone is arranged on a transversely-walking trolley of the portal crane and serves as a fixed reference point, the actual descending distance h and the deviation angle theta of the lifting appliance are measured through inductive reflection between a millimeter-wave radar and the reflecting cone, and the final height h * sin (theta) is calculated. According to the whole mode, measurement is simple, cost is low, installation is convenient, implementation is fast, positioning information collection of the position of the lifting appliance of the portal crane is achieved, systematic automatic management is facilitated, information tracking of container position information is achieved, and the operation efficiency of the portal crane and the management effect of a railway goods yard are improved.

Description

technical field [0001] The invention belongs to the technical field of hoisting and identification of railway container cranes, and in particular relates to a method for dynamically sensing the position of a gantry crane spreader based on a millimeter-wave radar. Background technique [0002] In the existing railway container yard operations, gantry cranes have been widely used for hoisting operations, and rotary encoders are mostly used for distance measurement between spreaders and trolleys. At present, the distance between the spreader and the trolley is used as an important sensor parameter for the intelligent management of the container yard to determine the position of the container. At present, the distance between the crane trolley and the spreader is calculated according to the rotary encoder on the winch on the spreader combined with the diameter of the winch. However, the cable is likely to be in a loose state during the lowering process, and the diameter of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/46
CPCB66C13/46
Inventor 庞鸣雷尹文强李晓明田汉宇童鹏程徐峰文昱胡明
Owner SHANGHAI RAILWAY BUREAU
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