CN103868477A - Wall flatness measuring instrument and measuring method thereof - Google Patents

Abstract

The invention relates to a wall flatness measuring instrument and a measuring method thereof. The wall flatness measuring instrument comprises a single chip microcomputer, a laser range finder, a displayer, a support and a stepping motor. The laser range finder is used for measuring the distance values from the laser range finder to a plurality of set points of a wall to be measured, and then the distance values are sent to the single chip microcomputer. The single chip microcomputer is used for converting the distance measurement values into perpendicular distance values, and all the perpendicular distance values are drawn to be a graph which is sent to the displayer to be displayed. The wall flatness measuring instrument has the advantages of being high in integration degree, high in measurement accuracy and visual in data output and display.

Description

Wall plane degree measuring instrument and measuring method thereof

Technical field

The present invention relates to a kind of instrument and measuring method thereof of measuring for wall plane degree.

Background technology

At present, when common buildings construction or house decoration, building masonry wall is carried out to roughness measurement and adopts surveyor's staff to measure, surveyor's staff can only measure short-range level and precision lower.The precision of measuring in order to improve wall leveling degree, adapts to the demand for degree of plainness for wall surface measuring equipment on market, and a kind of wall plane degree measuring instrument has been researched and developed in applicant investment.

Summary of the invention

The object of the present invention is to provide a kind of wall plane degree measuring instrument, have integrated degree high, measuring accuracy is high, data output display advantage intuitively.

To achieve these goals, the technical solution of employing is:

Wall plane degree measuring instrument, comprises single-chip microcomputer, airborne laser range finder, display, support and stepper motor;

Described airborne laser range finder, for measuring the distance value of airborne laser range finder to the multiple set points of body of wall to be measured, sends to single-chip microcomputer by distance value afterwards;

Described single-chip microcomputer, for distance measurement value being converted into vertical range value, all vertical range values are depicted as chart, send to display to show;

Described support comprises base, rollover stand and horizontally rotates plate, and described base is formed by the first leveling board and the first vertical plate vertical connection; Described rollover stand is joined and is formed by the second leveling board, the 3rd leveling board and the second vertical plate, and the second vertical plate is connected to the end of the second leveling board and the 3rd leveling board; Described the second vertical plate middle part is rotationally connected with the first vertical plate top, described in horizontally rotate plate and be positioned at the 3rd leveling board top, horizontally rotate plate and the 3rd leveling board is rotationally connected;

Described stepper motor is connected with single-chip microcomputer, by the rotational angle of Single-chip Controlling stepper motor, stepper motor has two, be respectively to drive the first stepper motor and the driving that rollover stand rotates at vertical plane to horizontally rotate the second stepper motor that plate rotates at surface level, airborne laser range finder is arranged on and horizontally rotates on plate.

Preferably, described airborne laser range finder is phase laser distance measurement device.

Preferably, described single-chip microcomputer is by the rotational angle of motor-drive circuit control step motor.

Preferably, described single-chip microcomputer is connected with airborne laser range finder by level shifting circuit.

Preferably, described single-chip microcomputer is connected with display by level shifting circuit.

Another object of the present invention is to provide a kind of above-described embodiment wall plane degree measuring instrument that uses, and measures the method for wall plane degree.

To achieve these goals, the technical solution of employing is:

The measuring method of wall plane degree measuring instrument, comprises the following steps:

(1) choose body of wall to be measured;

(2) single-chip microcomputer is inputted to as boundary value in four angles of body of wall to be measured;

(3) by horizontal airborne laser range finder single stepping angle and longitudinal single stepping angle input single-chip microcomputer, each horizontal single stepping angle and longitudinally single stepping angle, on body of wall, correspondence goes out latticed array point;

(4) Single-chip Controlling the first stepper motor and the second stepper motor, make airborne laser range finder to latticed array point from left to right, from top to bottom successively range finding;

(5) each array point to be measured calculates its corresponding vertical range H according to following formula,

$\tan \left(c\right)=\cot \left(a\right)-\frac{L_2}{{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HDA0000483644900000012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\sin \left(a\right)}$ < formula 1>

H=L ₂cos (c) < formula 2>

L ₁for the distance value of airborne laser range finder and display point adjacent boundary to be measured display point;

L ₂for the distance value of airborne laser range finder and display point to be measured;

α is the angle value of being put the second stepping electric machine rotation by adjacent boundary display point to array to be measured;

(6) each array to be measured is put to corresponding vertical range H and set up data form, give display and show.

Preferably, described step (2) according to the prompting of display with airborne laser range finder successively to four of body of wall to be measured angle values.

Preferably, described step (2) is inputted four angles of body of wall to be measured as boundary value after single-chip microcomputer, and single-chip microcomputer calculates the second stepping driven by motor airborne laser range finder measures the rotational angle of body of wall lateral length, the first stepping driven by motor airborne laser range finder and measure the rotational angle of body of wall longitudinal length.

Beneficial effect of the present invention:

Wall plane degree measuring instrument, has integrated degree high, and measuring accuracy is high, data output display advantage intuitively.The measuring method of wall plane degree measuring instrument, step is terse, and operation efficiency is high, and data result is directly perceived.

Brief description of the drawings

Fig. 1 is that wall plane degree measuring instrument hardware connects block diagram.

Fig. 2 is the structural representation of support.

Fig. 3 is the computation model figure of vertical range H.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described in detail:

In conjunction with Fig. 1, Fig. 2, wall plane degree measuring instrument, comprises single-chip microcomputer, airborne laser range finder, display, support and stepper motor.Described airborne laser range finder, for measuring the distance value of airborne laser range finder to the multiple set points of body of wall to be measured, sends to single-chip microcomputer by distance value afterwards.Described single-chip microcomputer, for distance measurement value being converted into vertical range value, all vertical range values are depicted as chart, send to display to show.

Described support comprises base, rollover stand and horizontally rotates plate 1, and described base is formed by the first leveling board 11 and the first vertical plate 21 vertical connections.Described rollover stand is joined and is formed by the second leveling board 12, the 3rd leveling board 13 and the second vertical plate 22, and the second vertical plate 22 is connected to the end of the second leveling board 12 and the 3rd leveling board 13.Described the second vertical plate 22 middle parts and the first vertical plate 21 tops are rotationally connected, described in horizontally rotate plate 1 and be positioned at the 3rd leveling board 13 tops, horizontally rotate plate 1 and the 3rd leveling board 13 is rotationally connected.

Described stepper motor is connected with single-chip microcomputer, by the rotational angle of Single-chip Controlling stepper motor, stepper motor has two, be respectively to drive the first stepper motor and the driving that rollover stand rotates at vertical plane to horizontally rotate the second stepper motor that plate rotates at surface level, airborne laser range finder is arranged on and horizontally rotates on plate.

Described airborne laser range finder is phase laser distance measurement device, described single-chip microcomputer is by the rotational angle of motor-drive circuit control step motor, described single-chip microcomputer is connected with airborne laser range finder by the first level shifting circuit, and described single-chip microcomputer is connected with display by second electrical level change-over circuit.

The measuring method of wall plane degree measuring instrument, comprises the following steps:

(1) choose body of wall to be measured.

(2) single-chip microcomputer is inputted to as boundary value in four angles of body of wall to be measured.

(3) by horizontal airborne laser range finder single stepping angle and longitudinal single stepping angle input single-chip microcomputer, each horizontal single stepping angle and longitudinally single stepping angle, on body of wall, correspondence goes out latticed array point.

(4) Single-chip Controlling the first stepper motor and the second stepper motor, make airborne laser range finder to latticed array point from left to right, from top to bottom successively range finding.

(5) each array point to be measured calculates its corresponding vertical range H according to following formula, referring to Fig. 3.

L ₁, L ₂, L ₃for measurement data, a is single stepping angle, and e is total stepping angle.

Object is to calculate the H value that each L is corresponding, and process is as follows:

${\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000483644900000012.png"\; state="\{\{state\}\}">S</figure-callout>}}_1=\sqrt{{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HDA0000483644900000012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1^2+L_2^2-{2L}_1{L}_2\cos \left(a\right)}$ < formula 1>

$S_{\mathrm{all}}=\sqrt{{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HDA0000483644900000012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1^2+L_3^2-{2L}_1{L}_3\cos \left(e\right)}$ < formula 2>

$\tan \left(c\right)=\cot \left(a\right)-\frac{L_2}{{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HDA0000483644900000012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\sin \left(a\right)}$ _{< formula 3>}

H=L ₂cos (c) < formula 4>

L ₁for the distance value of airborne laser range finder and display point adjacent boundary to be measured display point.

L ₂for the distance value of airborne laser range finder and display point to be measured.

α is the angle value of being put the second stepping electric machine rotation by adjacent boundary display point to array to be measured.

< formula 3> is drawn by the following derivation of equation:

$\begin{array}{c}{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HDA0000483644900000012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\cos (a+c)=L_2\cos \left(c\right)\&DoubleRightArrow;L_1[\cos \left(a\right)\cos \left(c\right)-\sin \left(a\right)\sin \left(c\right)]=L_2\cos \left(c\right)\\ \&DoubleRightArrow;L_1(\cos \left(a\right)-\sin \left(a\right)\tan \left(c\right))=L_2\&DoubleRightArrow;\tan \left(c\right)=\cot \left(a\right)-\frac{L_2}{{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HDA0000483644900000012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\sin \left(a\right)}\end{array}$

(6) each array to be measured is put to corresponding vertical range H and set up data form, give display and show.

Preferably, described step (2) according to the prompting of display with airborne laser range finder successively to four of body of wall to be measured angle values.Using four angles of body of wall to be measured as boundary value after input single-chip microcomputer, single-chip microcomputer calculates the second stepping driven by motor airborne laser range finder measures the rotational angle of body of wall lateral length, the first stepping driven by motor airborne laser range finder and measures the rotational angle of body of wall longitudinal length.

Measure in computation process and get feature a little according to range finding, data point not fixedly reads at the point of specifying, but reads on the path of specified point, so can bring error.Utilization index approximate model is revised this error, and formula is as follows:

L＝L ₀+(L ₁-L ₀)μ ¹+(L ₂-L ₀) _μ ²+....+(L _n-L ₀)μ ⁿ

After data pre-service, the data that obtain are this some vertical ranges to certain measurement plane, but two planes may not be parallel, can also use interpolation, eliminate this factor.Have two kinds of selective uses of interpolation model, one is linear interpolation model, and another kind is linear regression model (LRM).

Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art make in essential scope of the present invention, also should belong to protection scope of the present invention.

Claims (8)

1. wall plane degree measuring instrument, is characterized in that, comprises single-chip microcomputer, airborne laser range finder, display, support and stepper motor;

Described airborne laser range finder, for measuring the distance value of airborne laser range finder to the multiple set points of body of wall to be measured, sends to single-chip microcomputer by distance value afterwards;

Described single-chip microcomputer, for distance measurement value being converted into vertical range value, all vertical range values are depicted as chart, send to display to show;

Described support comprises base, rollover stand and horizontally rotates plate, and described base is formed by the first leveling board and the first vertical plate vertical connection; Described rollover stand is joined and is formed by the second leveling board, the 3rd leveling board and the second vertical plate, and the second vertical plate is connected to the end of the second leveling board and the 3rd leveling board; Described the second vertical plate middle part is rotationally connected with the first vertical plate top, described in horizontally rotate plate and be positioned at the 3rd leveling board top, horizontally rotate plate and the 3rd leveling board is rotationally connected;

Described stepper motor is connected with single-chip microcomputer, by the rotational angle of Single-chip Controlling stepper motor, stepper motor has two, be respectively to drive the first stepper motor and the driving that rollover stand rotates at vertical plane to horizontally rotate the second stepper motor that plate rotates at surface level, airborne laser range finder is arranged on and horizontally rotates on plate.

2. wall plane degree measuring instrument according to claim 1, is characterized in that, described airborne laser range finder is phase laser distance measurement device.

3. wall plane degree measuring instrument according to claim 1, is characterized in that, described single-chip microcomputer is by the rotational angle of motor-drive circuit control step motor.

4. wall plane degree measuring instrument according to claim 1, is characterized in that, described single-chip microcomputer is connected with airborne laser range finder by level shifting circuit.

5. wall plane degree measuring instrument according to claim 1, is characterized in that, described single-chip microcomputer is connected with display by level shifting circuit.

6. the measuring method of wall plane degree measuring instrument described in claim 1 to 5, is characterized in that, comprises the following steps:

(1) choose body of wall to be measured;

(2) single-chip microcomputer is inputted to as boundary value in four angles of body of wall to be measured;

(3) by horizontal airborne laser range finder single stepping angle and longitudinal single stepping angle input single-chip microcomputer, each horizontal single stepping angle and longitudinally single stepping angle, on body of wall, correspondence goes out latticed array point;

(4) Single-chip Controlling the first stepper motor and the second stepper motor, make airborne laser range finder to latticed array point from left to right, from top to bottom successively range finding;

(5) each array point to be measured calculates its corresponding vertical range H according to following formula,

$\tan \left(c\right)=\cot \left(a\right)-\frac{L_2}{L_1\sin \left(a\right)}$ < formula 1>

H=L ₂cos (c) < formula 2>

L ₁for the distance value of airborne laser range finder and display point adjacent boundary to be measured display point;

L ₂for the distance value of airborne laser range finder and display point to be measured;

α is the angle value of being put the second stepping electric machine rotation by adjacent boundary display point to array to be measured;

(6) each array to be measured is put to corresponding vertical range H and set up data form, give display and show.

7. measuring method according to claim 6, is characterized in that, described step (2) uses light viameter successively to four of body of wall to be measured angle values according to the prompting of display.

8. measuring method according to claim 6, it is characterized in that, after described step (2) is boundary value input single-chip microcomputer by four angles of body of wall to be measured, single-chip microcomputer calculates the second stepping driven by motor airborne laser range finder measures the moving angle of body of wall lateral length, the first stepping driven by motor airborne laser range finder and measures the rotational angle of body of wall longitudinal length.

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