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Wood automatic monitoring method and system

An automatic monitoring, wood technology, applied in measuring devices, instruments, optical devices, etc., can solve the problems of calculating diameter class, inability to follow, extraction, etc., to achieve the effect of rapid measurement

Active Publication Date: 2008-10-08
BEIJING HUALIXING SCI TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is somewhat innovative, it only uses some predetermined templates to approximate the end face profile
[0008] The above-mentioned system does not extract the profile of each log end face, so it cannot calculate the diameter class according to the national standard, nor does it take into account the need to measure boards and sawn timber in addition to logs in practical applications, and cannot measure movement The measurement of timber loaded in the train under the state cannot meet the needs of the customs field for timber supervision

Method used

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  • Wood automatic monitoring method and system

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Such as figure 1 Shown is a flow chart of an automatic timber supervision method for loading timber on moving vehicles. The method is used to supervise timber loaded on a moving train. The method mainly includes steps: step S101, scanning the traveling train compartment with a laser scanning device to obtain the compartment According to the contour line data of the cross-section of the wood, the cross-sectional area of ​​the wood is obtained according to the contour line data; step S102, using the camera device to continuously take pictures of the train carriages passing by, and obtain the length of the carriages of the running train according to the photographed pictures ; Step S103, obtain the volume of the wood from the cross-sectional area of ​​the wood and the length of the carriage; Step S104, judge whether the volume of the wood obtained is out of range, and supervise. The steps in this embodiment are described in detail below way of realization.

[0038] Step S...

Embodiment 2

[0079] The wood automatic supervision method provided in this embodiment is used to supervise the logs loaded in the stockyard or the stationary vehicles. Since the wood is stationary, the laser scanning device cannot be used to obtain the contour line. The end face of the wood is recognized by the image processing method, and the calculated The cross-sectional area of ​​each piece of wood.

[0080] Such as Figure 6 It is a flow chart of the automatic timber supervision method for stockyard logs and stationary trains loading logs in the present invention, the method includes the following steps: step S201, using a camera device to capture the end face image of the stockyard logs or the loaded logs, according to the The end face image obtains the number of logs and the cross-sectional area of ​​each log; step S202, uses a scale to measure the length of the log; step S203, obtains the log in the yard from the number of logs, the cross-sectional area of ​​each log, and the lengt...

Embodiment 3

[0109] Since the embodiment 2 of the present invention proposes the method of obtaining the end face image of the log to obtain the cross-sectional area of ​​each log, the automatic supervision of the loaded timber of the driving vehicle can also be adopted Figure 7 In the manner shown, the running train is a train, and X-1, X, and X+1 represent different carriages, which are loaded with wood, and three cameras are respectively installed at different positions above the train track, cameras C1 and C3 It is used to shoot the end face image of the wood in the carriage. C1 and C3 are located above the rail, and they are tilted at a certain angle to shoot the rear and front face images respectively. The cameras C2 and C4 are located on both sides above the rail and are used to continuously take pictures of the carriage passing through. The length of the compartment, the cameras C1, C2, C3, and C4 are respectively connected to the image acquisition device 1, and the image acquisiti...

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Abstract

The invention relates to a wood automatic supervision method and a system which combines a laser contour detection, a machine vision recognition and an image processing technology, scans wood contour line for a laser scanning device used for train to transporting wood to gain cross section area of loading wood, uses a machine vision device to gain carriage length of the train, automatically gains volume of the loading wood. The invention also provides an automatic supervision method for yard logs or vehicle loading logs which process to scan for head faces of the logs, gain the cross section area of each log according to a head face image, and then try to obtain log volume according to the wood length, so as to realize the wood automatic supervision. The method and the system provided by the invention are applied to the customs, so as to reduce artificial examination strength of the customs system, improve examination accuracy, and effectively attack smuggling crime.

Description

technical field [0001] The invention relates to the supervision field, in particular to an automatic timber supervision method and system, which are used to automatically supervise the loading of timber in a driving vehicle, the volume of loaded logs in the driving vehicle, and the volume of logs in a site. Background technique [0002] According to statistics, in 2007, my country's log imports reached more than 30 million cubic meters, with a total value of 5.3 billion US dollars. Logs are bulky goods imported by many border customs ports in my country. Therefore, key supervision is required, and the volume of timber is measured. Check for concealment and underreporting. At present, the measurement of timber adopts the method of manual ruler inspection. For suspicious declared timber, it is measured in accordance with the provisions of the national standard, and each piece of timber is measured manually with a tape measure. The accuracy and rationality of this method are not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00
Inventor 薛江云曲海波赵杰武启平张胜公建宁
Owner BEIJING HUALIXING SCI TECH DEV
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