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Method for calculating lifting height of scissor-type high-altitude work platform

An aerial work platform and height calculation technology, applied in the field of aerial work platforms, can solve the problems of inaccuracy, sensor measurement error, large error, etc., and achieve the effect of low computational complexity and good real-time performance.

Active Publication Date: 2018-12-18
NORTH VALLEY ELECTRONICS CO LTD
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Problems solved by technology

[0003] How to accurately determine the lifting height of the scissor-type aerial work platform is a problem that manufacturers need to solve. If it is calculated based on the lifting time and lifting speed, the error is relatively large because the lifting force given by the hydraulic system is not constant. ; If you rely solely on the angle sensor installed on the scissor arm to measure the lift height, because there are certain errors in the measurement of the sensor itself, and the method of calculating the lift height through the measured value will also bring in a lot of noise, so it is also not accurate enough

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  • Method for calculating lifting height of scissor-type high-altitude work platform

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Embodiment 1

[0040] A method for calculating the lifting height of a scissor type aerial work platform of the present invention comprises the following steps:

[0041] (1) Use the linear regression method to fit the linear relationship between the single lifting time and the lifting height of the scissor aerial work platform, and calculate the prediction error;

[0042] 1.1 Count the longest lifting time of this type of scissor aerial work platform, denoted as max(t);

[0043] 1.2 The shortest lifting time is 0, divide the interval [0,max(t)] into m segments, take n sample points in each segment, a total of m*n sample points, and count the different lifting time t and the corresponding The lifting height value h, denoted as (t i , h j );

[0044] 1.3 Divide the values ​​of m*n sample points into training set and test set, and use linear programming method to train the linear relationship between single lifting time and lifting height. The linear equation is: h(t)=a *t+b, where a and b ...

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Abstract

A method for calculating the lifting height of a scissor-type aerial work platform includes such steps as using linear regression method to fit the linear relationship between single lifting time andlifting height of scissor-type aerial work platform, using linear regression method to calculate the lifting height of scissor-type aerial work platform, calculating the lifting height of scissor-typeaerial work platform, calculating the lifting height of scissor-type aerial work platform and lifting height of scissor-type aerial work platform. The linear function relationship between the outputvoltage signal of the angle sensor and the lifting height is established. A linear regression function is used to predict the height of a single lift of a scissor-type aerial platform, and the predicted height is obtained. The observation height is obtained according to the voltage signal of the angle sensor and the linear function relationship between the voltage signal and the lifting height. According to the prediction error and observation error of the lifting height, the lifting height gain of the scissor-type high-altitude platform is obtained. According to the predicted altitude, the observed altitude and the altitude gain, the optimal solution of the lifting altitude is calculated as the current actual lifting altitude. This method can reduce the influence of error and noise, and get more accurate calculation method of lifting height of scissor-type high-altitude platform.

Description

technical field [0001] The invention relates to the technical field of aerial work platforms, in particular to a method for calculating the lifting height of a scissor-type aerial work platform. Background technique [0002] With the rapid development of the economy and the increasing emphasis on safe production, civilized construction, and power grid security, aerial work vehicle products are used in traditional municipal, power industry, petrochemical, communication, and disaster relief industries, or in property decoration, hotels Emerging fields such as tourism, high-speed railways, and competition venues have all developed rapidly. At present, aerial work vehicles are mainly divided into crank arm aerial work vehicles, self-propelled aerial work platforms, scissor aerial work platforms and telescopic boom aerial work platforms, among which scissor aerial work platforms are special equipment for aerial work with a wide range of uses . Its scissor mechanical structure m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/11G06F17/15G06Q10/04
CPCG06F17/11G06F17/15G06Q10/04
Inventor 薛冰李小鹏张善睿张琳李维商亚龙曹金飞
Owner NORTH VALLEY ELECTRONICS CO LTD
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