Method and system for calculating stock volume of storage cabinet based on virtual pulses

A virtual pulse and calculation method technology, which is applied in the field of storage cabinet storage statistics, can solve the problems of low pulse counting accuracy, wrong pulse collection, circuit interference, etc., and achieve the effect of reducing equipment costs and maintenance costs and high accuracy

Active Publication Date: 2017-02-22
北京航天拓扑高科技有限责任公司 +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The shortcomings of this method: (1) to install detection components such as proximity switches or encoders on the equipment, it is also necessary to collect pulse signals, which increases the cost, low pulse counting accuracy, and detection components need frequent maintenance. (2). When the encoder is used to collect pulses, the circuit interference and the vibration of the storage cabinet will cause a malfunction signal of the rotary encoder; (3). When the proximity switch is used to collect pulses, since the bottom belt is in a tensioned state when running, When stopping halfway, it may return to the original state, which may lead to false collection of pulses
The above reasons will lead to inaccurate calculation of the output of the storage cabinet

Method used

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  • Method and system for calculating stock volume of storage cabinet based on virtual pulses
  • Method and system for calculating stock volume of storage cabinet based on virtual pulses
  • Method and system for calculating stock volume of storage cabinet based on virtual pulses

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Embodiment 1

[0025] A method for calculating the storage volume of storage cabinets based on virtual pulses. A frequency converter is used to drive a motor to drive the conveyor bottom belt to rotate and transport the storage cabinet storage materials. Equal, the percentage of storage in the storage tank is equal to the total number of pulses minus the number of currently received pulses and then divided by the total number of pulses, that is, the percentage of storage in the storage tank is equal to the total length of the movement of the bottom belt minus the current movement length of the bottom belt and then Divided by the total length of movement; the method is: collect the frequency parameters of the frequency converter, calculate the total length of movement of the conveying bottom belt and the current moving length of the conveying bottom belt according to the formula S=V.t, and use the total amount of the storage cabinet storage capacity The principle of being equal to the total nu...

Embodiment 2

[0059] This embodiment is a system for realizing the method described in Embodiment 1, such as figure 1 As shown, the system includes a material storage cabinet 1 and a conveying bottom belt 2 connected with the material storage cabinet. The conveying bottom belt is driven by a motor 3, a frequency converter 4 is connected to control the motor, and a frequency converter 4 is connected with a virtual pulse generation and calculation function. The controller 5 is connected with the frequency converter to collect the frequency signal of the frequency converter, the controller is connected with an output device, and the output device outputs the information of the storage capacity of the material storage cabinet.

[0060] In the embodiment, the bottom belt of the storage cabinet is connected with the output end of the drive motor through a chain or a belt. The frequency converter and the controller communicate through the field bus, and the controller sends speed regulation comman...

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Abstract

The invention discloses a method and system for calculating the stock volume of a storage cabinet based on virtual pulses. A frequency changer drive motor drives a conveying bottom belt to rotate to convey the storage cabinet to store materials. The method comprises the following steps: collecting a frequency parameter of a frequency changer, calculating a total moving length of the conveying bottom belt and a current moving length of the conveying bottom belt according to a formula S = V.t, generating a total number of virtual pulses the same as the total stock volume according to the principle that the total stock volume of the storage cabinet is equal to the actual total number of virtual pulses output by the total moving length of the conveying bottom belt, and calculating the number of the output virtual pulses according to the current moving length of the conveying bottom belt to obtain the current stock volume of the storage cabinet; and according to the method disclosed by the invention, the speed of the bottom belt of the storage cabinet is controlled by the frequency changer drive motor, the conveyed materials are calculated by the virtual pulses, the speed regulation of the bottom belt of the storage cabinet and the calculation of the stock volume of the storage cabinet are achieved flexibly, the equipment cost and the maintenance cost are reduced, and the accuracy is high.

Description

technical field [0001] The invention relates to the statistics of storage volume of storage cabinets in tobacco pharmaceutical processing, in particular to a calculation method and system for storage storage volumes of storage cabinets based on virtual pulses. Background technique [0002] In the current tobacco industry, storage cabinets are the most common storage equipment. The state of the storage cabinet plays a link between different batches of production. Since the state of the storage cabinet is generated in the discharge section of the storage cabinet, the discharge of the storage cabinet is very important for the change of the storage cabinet state. When it comes to the discharge of the storage cabinet, the acquisition of the bottom belt pulse of the storage cabinet and its data accuracy are the most important. The total number of bottom belt pulses and the current output pulse number directly determine the current output volume and storage Calculation of material...

Claims

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Application Information

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IPC IPC(8): H03K23/00G05B19/05
CPCG05B19/054H03K23/00
Inventor 宫建华陈烜袁海生张亚凯
Owner 北京航天拓扑高科技有限责任公司
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