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Method and system for checking precision of electronic belt scale

An electronic belt scale and accuracy technology, which is applied in the field of electronic belt scale calibration, can solve the problems that the accuracy calibration cannot be performed, and achieve the effect of meeting the requirements of accurate automatic monitoring and accuracy detection

Inactive Publication Date: 2011-09-07
SHANDONG IRON & STEEL CO LTD
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Problems solved by technology

[0004] The invention overcomes the problem that the current online electronic belt scales of enterprises can only perform accuracy checks but cannot, and provides a convenient accuracy check method

Method used

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  • Method and system for checking precision of electronic belt scale
  • Method and system for checking precision of electronic belt scale
  • Method and system for checking precision of electronic belt scale

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Embodiment Construction

[0025] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] Such as figure 1 As shown, the online electronic belt scale accuracy check system includes feeding equipment 1, non-reversible belt 2, electronic belt scale 3, PLC4 and industrial microcomputer 5. Among them, the non-reversible belt 2 is installed under the feeding equipment 1 to accept the materials given by the feeding equipment 1; the electronic belt scale 3 is attached and installed under the upper belt of the non-reversible belt 2 to measure the materials carried by the non-reversible belt. , Electronic belt scale 3 generally adopts appropriate range and accuracy, and utilizes weight sensor and speed sensor to detect scale frame length weight and belt speed respectively, so as to accurately detect instantaneous belt flow (scale frame length weight / belt speed). On-line monitoring software is installed in the industrial ...

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Abstract

The invention provides a method and system for checking precision of an electronic belt scale. The method comprises the following steps: in the process of balancing the scale with a standard code, collecting data containing scale frame length and weight and a belt speed by each electronic belt scale according to the principle of intra-group instant sampling and inter-group multiple sampling; according to the collected data and a preset flow of each feeding device, calculating basic data Y required by the precision check according to the following formula; calculating the ratio of an intra-group range average value to an inter-group range average value of the basic data; and comparing the calculated ratio with a preset threshold value so as to determine whether to repeat the precision check or end the precision check, wherein the formula is that Y=1-sigma{[(the actual flow i / the preset flow i-1)2]1 / 2*( the preset flow / a preset total flow)}*100%. By using the method, the existing problem that an enterprise can only check the accuracy of the online electronic belt scale but cannot check the precision is solved. The invention provides a convenient method for checking precision.

Description

technical field [0001] The invention relates to a technology for checking the electronic belt scale, more specifically, a method and system for checking the accuracy of the electronic belt scale. Background technique [0002] At present, large-scale automatic batching production lines of various enterprises mostly use electronic belt scales for measurement, and online monitoring of belt flow ensures that the ratio of belt flow is stable and accurate. However, the electronic belt scale is a running scale and a dynamic scale. In actual work, it is affected by various factors such as the installation environment and the running belt. Even in the most standard working environment, the belt tension is different due to the impact of the load. The accuracy of the scale must also fluctuate accordingly. [0003] In the current various non-reversible belt flow ratio detection technologies, companies generally use static scale "stage sampling" or dynamic scale "stage accumulation" to ...

Claims

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Application Information

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IPC IPC(8): G01G23/01
Inventor 徐春玲李强张故见赵长安陈建华
Owner SHANDONG IRON & STEEL CO LTD
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