CN102162719B

CN102162719B - Method for automatically counting volume of wood with rectangular sectional area

Info

Publication number: CN102162719B
Application number: CN201010597248.2A
Authority: CN
Inventors: 万舟; 孟兴林; 吴建德; 许江淳
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2010-12-20
Filing date: 2010-12-20
Publication date: 2012-12-19
Anticipated expiration: 2030-12-20
Also published as: CN102162719A

Abstract

The invention relates to a method for automatically counting the volume of a wood with a rectangular sectional area. The wood with the rectangular sectional area moves forward at a constant speed on a conveying device; photoelectric switches fixed on the left and the right of the conveying device are used for measuring the length of the wood with the rectangular sectional area; the wood with the rectangular sectional area pushes baffles which are arranged in the horizontal direction and the vertical direction so as to produce angles alpha and beta in the horizontal direction and the vertical direction respectively; the angles produced by the baffles are amplified by a speed reducer in a signal way and transmitted to an absolute encoder; the absolute encoder transforms an angular displacement into a linear displacement, and transmits a width signal and a height signal to an upper computer; and the width signal and the height signal are processed by the upper computer according to a volume formula V=X*Y*Z so as to display the volume of the wood. By adoption of the method for automatically counting the volume of the wood with the rectangular sectional area, the counting method is simple, finished automatically, and high in speed and precision; moreover , labors and resources are saved, the speed and the precision of measurement are increased, the accuracy and the objectivity of automatically counting the volume of the wood with the rectangular sectional area are guaranteed, and the transaction fairness between a wood supplier and a manufacturer is embodied. By application of the method, the manual measurement intensity is reduced, and the accuracy and the objectivity of measurement can be improved.

Description

A kind of sectional area is the automatic gauge method of the timber measurement of rectangle

Technical field

The present invention relates to a kind of sectional area is the automatic gauge method of the timber measurement of rectangle.Can be accurate through the method, add up reliably, adjust, objectively reflect its volume.

Background technology

Along with the development of industries such as building, finishing and wood working, the lumber market has obtained development rapidly, is just receiving people's growing interest.At present, the goods that timber processing factory (timber floor factory, furniture factory etc.) advances all is that the sectional area of process preliminary working is the timber of rectangle, and conventional measurement mainly is through manual measurement, and survey instrument is a ruler.The personnel that manual measurement needs on the one hand are many, and labour intensity is big, efficient is low, and the flexibility of the sum of errors timber of ruler self itself all can be brought error; On the other hand; Because whole measuring process all is the people for carrying out, measuring speed is slow, and human factor can be brought certain error.Therefore, finding one, accurately, reliably, objectively to measure sectional area be that the method for rectangular timber becomes key.

Summary of the invention

The purpose of this invention is to provide a kind of sectional area is the automatic gauge method of the timber measurement of rectangle, and the sectional area that travels at the uniform speed on conveyer with sensor measurement, the measurement of computing machine display technique is the timber of rectangle.The utilization of this method can reduce manual measurement intensity, improves the accuracy of measuring, objectivity.

The present invention for realizing the technical scheme that above-mentioned purpose is taked is: this sectional area is that the automatic gauge method of rectangular timber volume may further comprise the steps (key step comprises :): sectional area is that the timber of rectangle at the uniform velocity passes through conveyer, and when getting into the optoelectronic switch detection zone, the transmitter and the light between the receiver of optoelectronic switch will be blocked; Begin to produce switching signal; Leave detection zone until timber, switching signal stops to produce, through how many computational length Y of counter switch signal; The baffle plate that then will promote the place ahead produces an angle [alpha] in the horizontal direction; This angle is input to absolute type encoder and converts angular displacement into displacement of the lines after amplifying through reductor, calculates its width X; Another baffle plate that then promotes the place ahead again produces an angle beta at vertical direction; Same this angle is amplified through reductor, is input to absolute type encoder and converts angular displacement into displacement of the lines, calculates its height Z; Through conversion equipment the signal of length is passed to host computer, calculate, show its volume by cubature formula V=X*Y*Z.Promptly when sectional area be the timber 4 of rectangle when sending into WT-MSR by conveyer, the optoelectronic switch 5,6 that is vertically mounted on conveyer the right and left is measured its length X; During through horizontal direction baffle plate 2, will produce an angle [alpha], when promoting vertical direction baffle plate 3; To produce an angle beta; The angle of horizontal direction baffle plate 2 and 3 generations of vertical direction baffle plate is sent to reductor and carries out the signal amplification, then arrives absolute type encoder to signal conveys, and absolute type encoder converts angular displacement into displacement of the lines; Again width, altitude signal are passed to host computer and handle, show its volume through cubature formula V=X*Y*Z.

Beneficial effect of the present invention: it is simple that this invention has metering method, is easy to advantages such as realization.The most basic purpose is to realize that sectional area is the automatic gauge of rectangular timber volume; Not only save human and material resources, also improved measured speed, precision; Guaranteed that sectional area is the objectivity of rectangular timber metering, more can embody the fairness of timber supplier and the transaction of processing side.

Below in conjunction with accompanying drawing this automatic gauge method is further specified.

Description of drawings:

Fig. 1 is that sectional area is the structure principle chart of the timber measurement of rectangle;

Fig. 2 is that optoelectronic switch measurement sectional area is the synoptic diagram of the timber length of rectangle;

Fig. 3 is that sectional area is that width and the altitude signal of the timber of rectangle handled and be connected synoptic diagram.

Fig. 4 be pair cross-section long-pending be width and the synoptic diagram that is connected of altitude signal processing of the timber of rectangle.

Embodiment:

Among Fig. 1, conveyer 1 is installed in vertical direction 2 and horizontal vertical direction 3 baffle plates, and vertical fixing is installed in the optoelectronic switch 5 and 6 of conveyer 1 the right and left, and optoelectronic switch supports through support 7.The baffle plate of vertical direction 2 and horizontal direction 3 need be installed on the rotation axis.

Among Fig. 2, Fig. 3, the transmitter 8 of conveyer 1, optoelectronic switch, receiver 9.Block transmitting of optoelectronic switch for fear of dust or other foreign material, effectively prevent the false triggering optoelectronic switch, with

optoelectronic switch

8,9 closely vertical fixing be installed in vertical direction; Support through support 7; The length signals of measuring optoelectronic switch compares through comparer, removes irrational measurement data, averages rational data; Obtain its length, reduce measuring error.

When sectional area is the timber 4 of the rectangle angle [alpha] that promotes baffle plates 2,3 and produce, β, less relatively because of the angle of its generation, be delivered directly to the signal of absolute type encoder can be very a little less than; Can bring error to measurement,, angle α, β carried out signal amplify in order to reduce error; Among Fig. 4, comprise baffle plate rotation axis 10, reductor 11;

Reductor IO port

12 and 13, absolute type encoder 14, the

IO port

15 and 16 of absolute type encoder.When rotation axis 10 produces angle [alpha]; Being input to reductor 11 through chromacoder amplifies; Reductor afterwards is transported to absolute type encoder 14 through output port 13 through corresponding amplifications and converts angular displacement into displacement of the lines, and the output port 16 through absolute type encoder is sent to host computer and calculates, shows again.

Claims

1. the automatic gauge method of the sectional area timber measurement that is rectangle is characterized in that: sectional area is that the timber of rectangle is when at the uniform velocity getting into the optoelectronic switch detection zone through conveyer, because the transmitter of optoelectronic switch and the light between the receiver are blocked; Produce switching signal, leave detection zone until timber, switching signal stops to produce; How many computational length Y through the counter switch signal; First baffle plate (2) that then will promote the place ahead horizontally rotates direction and produces an angle [alpha], and this angle is input to absolute type encoder and converts angular displacement into displacement of the lines after amplifying through reductor; Calculate its width X; The second baffle (3) that then promotes the place ahead again produces an angle beta in vertical rotation direction, and this angle is amplified through reductor equally, is input to absolute type encoder and converts angular displacement into displacement of the lines; Calculate its height Z, through absolute type encoder the signal of length Y, width X, height Z is passed to host computer again and calculate, show its timber measurement by cubature formula V=X * Y * Z;

Horizontally rotating first baffle plate (2) of direction and the second baffle (3) of vertical rotation direction is installed on the rotation axis; The corner of rotation axis carries out signal through reductor and amplifies, and absolute type encoder converts amplifying signal into displacement of the lines and is delivered to host computer and handles, show.

2. the automatic gauge method of the timber that sectional area according to claim 1 is a rectangle is characterized in that: conveyer (1) must be a drum-type, and speed remains a constant speed.

3. the automatic gauge method of the timber that sectional area according to claim 1 is a rectangle is characterized in that: optoelectronic switch (5,6) is installed in the left and right sides of conveyer (1) through support (7) vertical fixing.