Method and system for detecting tobacco shred material flow on conveying belt based on light field imaging

A technology of flow detection and light field imaging, which is applied in the directions of liquid/fluid solid measurement, volume measurement, fluid transportation, and measurement devices, which can solve the problems of difficult installation process and achieve high measurement accuracy and simple system

Active Publication Date: 2020-01-03
ZHENGZHOU TOBACCO RES INST OF CNTC
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Problems solved by technology

Therefore, the installation process is more difficult

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  • Method and system for detecting tobacco shred material flow on conveying belt based on light field imaging
  • Method and system for detecting tobacco shred material flow on conveying belt based on light field imaging
  • Method and system for detecting tobacco shred material flow on conveying belt based on light field imaging

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Embodiment Construction

[0058] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0059] Specifically include the following steps:

[0060] Step 1. Build as figure 1 The cut tobacco material flow detection system on the conveyor belt based on light field imaging is shown. The cut tobacco material is conveyed through the conveyor belt. Above the material conveyor belt, a light field camera and a linear laser are installed, both of which point vertically to the cut tobacco material below. The light field camera The function is to collect the light field information of shredded tobacco particles to realize the height detection of shredded tobacco on a certain cross section of the belt. The function of the linear laser is to enhance the surface texture of shredded tobacco particles to improve the accuracy of detection; a speed sensor is installed at the roller of the conveyor belt. It is used to measure ...

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Abstract

The invention discloses a method and a system for detecting tobacco shred material flow on a conveying belt based on light field imaging. Tobacco shred material flow on a conveying belt is detected inreal time through a detection system composed of a light field camera, a linear laser, a speed sensor and an information processing computer. The light field camera is used for collecting light fieldinformation of tobacco shred particles to achieve tobacco shred height detection, and the laser is used for enhancing surface texture of the tobacco shred particles to improve measurement accuracy. The speed sensor is used for measuring advancing speed of the conveying belt in real time; and the information processing computer performs data processing on the acquired light field information to obtain the section height of the tobacco shreds and calculates the volume flow of the tobacco shreds according to the speed of the conveying belt. The invention has the advantages that non-contact nondestructive measurement is adopted, normal conveying of tobacco shred materials is not affected, a detection system is simple, system complexity caused by the fact that two or more cameras are needed ina traditional visual detection technology is avoided, the method has the advantages of instantaneity and visualization, and the measurement accuracy is high.

Description

technical field [0001] The invention belongs to the field of material conveying flow detection, and in particular relates to a method and system for detecting the flow of shredded tobacco on a conveyor belt based on light field imaging. Background technique [0002] Shredded tobacco conveying is an essential link in the cigarette processing process, and the conveying methods mainly include belt wire feeding, entrainment wire feeding, wind wire feeding and so on. Practice has proved that when the shredded tobacco is conveyed by a belt, the shredded wire is the smallest, which can effectively reduce the consumption of cigarette processing, so it is widely used in cigarette technology. In order to ensure the stability of the processing of each process, it is usually necessary to measure and control the flow of conveying shredded tobacco. At present, the tobacco industry mainly uses two types of electronic belt scales and nuclear scales. Due to the radiation risk of nuclear scal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/13G06T7/40G06T7/521G01F13/00
CPCG06T7/13G06T7/40G06T7/521G01F13/003G01F13/006
Inventor 李斌鲁端峰黄锋王乐张柯
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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