Measuring system and measuring method for position of starting and stopping equipment of hydropower station
A technology of equipment position and measurement system, which is applied in the field of measurement, can solve problems such as vehicle diameter error, wheel slippage, inaccuracy, etc., and achieve the effects of high accuracy of position data, improved automation level, and good reliability
Active Publication Date: 2021-01-08
HUADIAN ZHENGZHOU MECHANICAL DESIGN INST
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AI Technical Summary
Problems solved by technology
The absolute encoder installed on the wheel cannot reliably and accurately meet the position detection requirements of the mobile hoist
One is because the error of the absolute encoder itself will continue to accumulate during the operation of the hoist
The second is that the wheel will slip when the hoist is running or the diameter error of the vehicle will cause inaccuracy when converting to the position of the hoist
Therefore, the continuous position measurement of the hoist through the wheel position cannot meet the automatic operation requirements of the hoist
Method used
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[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless otherwise specified, all technical and scientific terms used herein have the same technical meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0032] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. It should also be understood that when the terms "comprising" and / or "comprises" are used in this specification, it indicates the presence of features, steps, operations, means, components and / or combinations thereof.
[0033] The system for measuring the position of the hoistin...
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The invention relates to a measuring system and a measuring method for a position of starting and stopping equipment of a hydropower station. The system comprises a laser scanner arranged on the lowerpart of a trolley, wherein the laser scanner is connected to a data processing unit. The system further comprises a hanging tool reflecting plate arranged on a hanging tool, a reflecting plate mounted on a gate and a gate slot reflecting plate mounted in a gate slot of a dam surface. The laser scanner acquires point cloud data by scanning lower equipment and adjusts the positions of the hanging tool and the gate and the gate and the gate slot in real time according to the point cloud data to achieve automation of a mobile hoist. The position measuring system provided by the invention is an independent module which not only can be equipped on new hoist equipment, but also can be additionally mounted in existing hoist equipment. It is only needed to improve an existing hoist control system,so that the system is high in feasibility.
Description
technical field [0001] The invention belongs to the field of measurement, and in particular relates to a position measurement system for a hydropower station head-off device. Background technique [0002] For the hoist hoist of the hydropower station, the main function is to open and close and lift the maintenance gate. The typical equipment in hoist hoist is mobile hoist. With the development of automation technology and sensor technology, the operation process of mobile hoist has achieved a certain degree of automation and digitization. The main applied automation technologies include video surveillance technology, height measurement based on drum end encoders, position measurement of large and small vehicles based on wheel encoders, load measurement based on pressure sensors, etc. These measurement signals can be connected to the crane control system to participate in automatic control. The position measurement of the hoist, especially the continuous position measureme...
Claims
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IPC IPC(8): B66C13/16B66C13/48B66C5/02G01B11/00G01B11/14
CPCB66C13/16B66C13/48B66C5/02G01B11/002G01B11/14B66C2700/08Y02E10/20
Inventor 张莉胡美玲赵进科赵亚楠王少伟冯宇黄中军张新利刘香君
Owner HUADIAN ZHENGZHOU MECHANICAL DESIGN INST