KR101168568B1 - Apparatus for measuring the wind and wind velocity - Google Patents

Abstract

The present invention relates to a wind direction and a wind speed measuring device.
Wind direction and wind speed measuring apparatus according to the present invention, the cylindrical support; A first elastic plate fixedly installed in a direction perpendicular to an upper surface of the cylindrical support, and having a first fastening groove formed in one direction from the one side to the other side opposite to the one side; It is a direction perpendicular to the upper surface of the cylindrical support, fixedly installed in a direction perpendicular to the longitudinal direction of the first elastic plate, the side opposite to one side of the first elastic plate to be fitted into the first fastening groove. A second elastic plate having a second fastening groove formed in one direction from the one side to the other side opposite to the one side; A protective cap installed on the first elastic plate and the second elastic plate to protect the first elastic plate and the second elastic plate; A plurality of gauge parts attached to lower ends of each of the first elastic plate and the second elastic plate to detect electrical resistance values of the first elastic plate and the second elastic plate which vary according to wind intensity and direction; And a controller configured to supply power to the gauge unit and to signal-process an electrical resistance value measured by the gauge unit to calculate a wind direction and a wind speed. The plurality of gauge units each include a pair of first strains. Including a gauge and a second strain gauge, the first strain gauge is installed on the first elastic plate and the second strain gauge is installed on the second elastic plate is characterized in that it is installed to maintain an angle of 90 ° to each other .

Description

Wind direction and wind speed measuring device {APPARATUS FOR MEASURING THE WIND AND WIND VELOCITY}

The present invention relates to a wind direction and wind speed measuring apparatus using a strain gauge.

Generally, the wind vane is a tool to measure the direction from which wind is installed on a rooftop. It is also known as a wind fan or wind blower. The head is facing the head, and the windy ends of the cock's head are unbalanced, so it is called weathercock in the West.

Such a wind vane is the simplest of the weather gauges, and is configured to rotate one wind plate vertically around an axis, and is installed on a bearing that can reduce friction to a minimum so that it can fully function.

As a measuring instrument for measuring wind direction, there are two wind vanes and a cell-type wind vane. Among them, the two wind vanes have two wind plates. The cell-type wind vane is capable of remote observation and automatic recording using an electronic circuit by a cell-scene motor.

An anemometer is also called an anemometer as a tool for measuring the strength of wind. When it is classified according to the purpose of measurement, it is divided into an average anemometer and an instantaneous anemometer. Wind speed type anemometer, also known as wind pressure gauge, and the rotational speed is proportional to the wind speed when the wind boat or propeller rotates by wind, and the wind speed anemometer used in most meteorological observations. When the wind hits a heated object, the object is cooled. At this time, the object is classified into a hot-wind anemometer (熱線 風速計) which measures the degree of cooling and obtains the wind speed.

Such anemometers should be able to measure even weak wind speeds, and the wind speed and recorded values should be as linear as possible, and should follow the fluctuating wind speed. In addition, the recorded value should not be affected by the disturbance of the airflow, and it is important to select a point where the installation of the anemometer is not affected by the terrain or the building.

However, since these weather vanes or anemometers are separately installed in their respective places, the additional installation costs, the securing of the place of installation, and the analysis of the results of the anemometers and wind vanes are separately installed. There was a problem that hassle occurred.

In addition, such a conventional wind vane or anemometer has a problem that can not accurately measure the wind direction and wind speed of the area in various industrial sites sensitive to weather conditions.

Therefore, in order to solve the above problems, the present invention by attaching a strain gauge to the first elastic plate and the second elastic plate by measuring the amount of change in the electrical resistance value according to the deformation of the wind direction and speed, It is an object of the present invention to provide a wind direction and a wind speed measuring device capable of simultaneously measuring the wind speed.

Moreover, an object of this invention is to provide the wind direction and wind speed measuring apparatus which can obtain the measurement value of the exact wind direction and wind speed with little error through a strain gauge.

Wind direction and wind speed measuring apparatus according to the present invention, the cylindrical support; A first elastic plate fixedly installed in a direction perpendicular to an upper surface of the cylindrical support, and having a first fastening groove formed in one direction from the one side to the other side opposite to the one side; It is a direction perpendicular to the upper surface of the cylindrical support, fixedly installed in a direction perpendicular to the longitudinal direction of the first elastic plate, the side opposite to one side of the first elastic plate to be fitted into the first fastening groove. A second elastic plate having a second fastening groove formed in one direction from the one side to the other side opposite to the one side; A protective cap installed on the first elastic plate and the second elastic plate to protect the first elastic plate and the second elastic plate; A plurality of gauge parts attached to lower ends of each of the first elastic plate and the second elastic plate to detect electrical resistance values of the first elastic plate and the second elastic plate which vary according to wind intensity and direction; And a controller configured to supply power to the gauge unit and to signal-process an electrical resistance value measured by the gauge unit to calculate a wind direction and a wind speed. The plurality of gauge units each include a pair of first strains. Including a gauge and a second strain gauge, the first strain gauge is installed on the first elastic plate and the second strain gauge is installed on the second elastic plate is characterized in that it is installed to maintain an angle of 90 ° to each other .

The control unit may further include a regulating circuit unit for supplying power to the gauge unit, an amplification circuit unit for receiving and amplifying a signal representing an electrical resistance value output from the gauge unit, a filtering circuit unit for filtering the amplified signal, and digitally filtering the filtered signal. A / D converter to convert the signal, and includes a microprocessor for receiving the converted digital signal to calculate the wind direction and wind speed.

The control unit may further include a display unit displaying the wind direction and the wind speed calculated by the microprocessor.

In addition, a fixing groove for fixing the first elastic plate and the second elastic plate is formed on the upper surface of the cylindrical support.

In addition, the gauge unit measures the electrical resistance changed by the elastic deformation of the X-axis and Y-axis of the first elastic plate and the second elastic plate.

As described above, according to the present invention, since the strain gauge is attached to the first elastic plate and the second elastic plate to measure the amount of change in the electrical resistance value according to the deformation of the direction and speed of the wind, It can be measured.

In addition, according to the present invention, it is possible to obtain accurate wind direction and wind speed measured values with little error through the strain gauge.

Specific matters other than the problem to be solved, the problem solving means, and the effects of the present invention as described above are included in the following embodiments and the drawings. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. Like reference numerals refer to like elements throughout.

1 is a view showing the structure of a wind direction and wind speed measuring apparatus according to the present invention.
2a to 2c is a view showing a detailed configuration of the wind direction and wind speed measuring apparatus according to the present invention.
3a to 3d is a view showing the operation of the strain gauge according to the direction and speed of the wind toward the wind direction and wind speed measuring apparatus according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.

1 is a view showing the structure of the wind direction and wind speed measuring apparatus according to the present invention.

As shown in Figure 1, the wind direction and wind speed measuring apparatus according to the present invention, the cylindrical support portion 100, the first elastic plate 200, the second elastic plate 300, protective cap 500, gauge portion (Not shown) (FIGS. 2A to 3D; 230, 240, 330, and 340) and a controller 400. In addition, the controller 400 includes a regulating circuit 420, an amplifying and filtering circuit 410, an A / D converter 430, and a microprocessor 440.

The cylindrical support part 100 stands up on a plane. The upper surface of the cylindrical support portion 100 is formed with a fixing groove for fixing the first elastic plate 200 and the second elastic plate 300 is fixed. That is, the cylindrical support part 100 serves to support the first elastic plate 200 and the second elastic plate 300 fixed to the upper surface. Here, the material of the cylindrical support 100 is preferably used by the MC material. In the present invention, the upper end of the cylindrical support portion 100 and the end portion in contact with the first elastic plate 200 and the second elastic plate 300 is formed through the fixing groove, but is not limited to this, protrusions and grooves May be formed and fitted to each other, or a screw may be formed at each end to be in contact with each other to be screwed together. However, it is preferable to install the cylindrical support portion 100 so as to keep vertical at all times.

The first elastic plate 200 is fixedly installed in a direction perpendicular to the upper surface of the cylindrical support part 100, and the first fastening groove 210 is formed in the other side direction from the one side to the opposite side of the one side.

 The second elastic plate 300 is fixedly installed in a direction perpendicular to the upper surface of the cylindrical support part 100, and is opposite to one side of the first elastic plate 200 to be fitted into the first fastening groove 210. The second fastening groove 310 is formed in the direction of the other side that is the opposite side of the one side from one side.

A predetermined protrusion is formed below the first elastic plate 200 and the second elastic plate 300 so that the protrusion is fitted into the fixing groove of the cylindrical support 100.

The protective cap 500 is installed on the first elastic plate 200 and the second elastic plate 300 to protect the first elastic plate 200 and the second elastic plate 300. The protective cap 500 is to protect the wind direction and wind speed measurement device from rain or snow when the wind direction and the wind speed measurement device around.

The gauge part is attached to the lower ends (ie, protrusions) of each of the first elastic plate 200 and the second elastic plate 300 to change the first elastic plate 200 and the second elastic plate according to the wind strength and direction. The electrical resistance value of 300 is detected. The gauge unit attaches a strain gauge (not shown) to both ends of each of the first elastic plate 200 and the second elastic plate 300 to output a change amount of the resistance value as it is deformed according to the direction and speed of the wind.

The control unit 400 supplies power to the gauge unit, and signal-processes the electrical resistance value measured by the gauge unit to calculate the wind direction and the wind speed. More specifically, the controller 400 receives a signal indicating an electrical resistance value output from the gauge circuit 420 and the regulating circuit unit 420 for supplying power to the gauge unit, that is, stable voltages (+ EXC, -EXC). Amplification and filtering circuit unit 410 for filtering the amplified signal, an A / D converter 430 for converting the filtered signal into a digital signal (A / D CONVERTER), and receiving the converted digital signal And a microprocessor 440 for calculating wind speed, and a display unit 450 for displaying the calculated wind direction and wind speed, wherein the first elastic plate 200 and the second elastic plate 300 vary according to the strength and direction of the wind. Detect the electrical resistance of

The control unit 400 receives the output signal of the strain gauge output from each of the east, west, north and north directions through the stable voltage supplied through the regulating circuit unit 420. In addition, the amplification and filtering circuit unit 410 amplifies the signal because the output voltage of the strain gauge is a minute voltage is output. At this time, the amplification and filtering circuit unit 410 makes a voltage range that can be recognized by the A / D converter 430. The signal that has passed through the amplification and filtering circuit unit 410 is converted into a digital signal through the A / D converter 430, and then the microprocessor 440 calculates the converted digital signal to calculate the direction and speed of the wind. In addition, the direction and speed of the wind calculated by the microprocessor 440 may be displayed through the display unit 450.

In the wind direction and wind speed measuring apparatus according to the present invention as described above, it is preferable to measure the wind direction and wind speed at a temperature between -40 degrees Celsius and +85 degrees Celsius.

2a to 2c is a view showing a detailed configuration of the wind direction and wind speed measuring apparatus according to the present invention. Figure 2a is a view showing the structure of the first elastic plate of the wind direction and wind speed measuring apparatus according to the present invention, Figure 2b is a view showing the structure of the second elastic plate of the wind direction and wind speed measuring apparatus according to the present invention, Figure 2c Is a top view of the wind direction and wind speed measuring apparatus according to the present invention.

On the other hand, the first elastic plate 200 and the second elastic plate 300 of the wind direction and anemometer according to the present invention, is installed on the upper portion of the cylindrical support 100, the elastic action according to the strength and direction of the blowing wind In addition, the electrical resistance is changed by the elastic deformation of the X-axis and the Y-axis of the first elastic plate 200 and the second elastic plate 300. Therefore, in the present wind direction and anemometer, strain gauges 230, 240, 330, and 340 for detecting strains of electrical resistances of the first elastic plate 200 and the second elastic plate 300 are provided, but the X axis and the Y axis are provided. The installation angles of the pair of strain gauges 230 and 330 and 240 and 340 for detecting the strain of the shaft are maintained at 90 ° to each other.

As shown in Figure 2a, the first elastic plate 200 of the wind direction and wind speed measuring apparatus according to the present invention, the first fastening groove 210 is formed in the direction of the other side of the opposite side of one side from one side. At this time, the width of the first fastening groove 210 is preferably formed to be the same as the width of the second fastening groove 310 which is fastened to the first fastening groove 210, that is to be engaged. A lower portion of the first elastic plate 200 is formed with a first protrusion 220 fitted in the fixing groove of the cylindrical support. In addition, the strain gauges 230 and 240 are respectively installed on the upper left and right sides of the first fastening groove 210. The direction and wind speed of the wind blowing in the east and west directions may be measured by changing the electrical resistance value due to the elasticity of the strain gauges 230 and 240.

As shown in FIG. 2B, the second elastic plate 300 of the wind direction and wind speed measuring apparatus according to the present invention is opposite to one side of the first elastic plate 200 to be fitted into the first fastening groove 210. The second fastening groove 310 is formed in the direction of the other side that is the opposite side of the one side from one side. At this time, the width of the second fastening groove 310 is preferably formed to be the same as the width of the first fastening groove 210 is fastened, that is, engaged with the second fastening groove 310. A lower portion of the second elastic plate 300 is formed with a second protrusion 320 to be fitted into the fixing groove of the cylindrical support. In addition, the strain gauges (330, 340) are respectively installed on the upper left and right sides relative to the first fastening groove (210). The direction and wind speed of the wind blowing from the north and south directions may be measured by changing the electrical resistance value due to the elasticity of the strain gauges 330 and 340.

As shown in Figure 2c, the upper side of the wind direction and wind speed measuring apparatus according to the present invention, the strain gauges 230, 240, 330, 340 respectively installed on the first elastic plate 200 and the second elastic plate 300 Are installed to maintain a 90 ° angle to each other. As such, the strain gauges 230, 240, 330, and 340 are attached to four directions of east, west, south, and north to measure the direction and force of the wind in all directions, that is, the wind direction and the wind speed.

3a to 3d is a view showing the operation of the strain gauge according to the direction and speed of the wind toward the wind direction and wind speed measuring apparatus according to the present invention. Figure 3a is a view showing the operation of the strain gauge when the wind blows from the south, Figure 3b is a view showing the operation of the strain gauge when the wind blows from the north, Figure 3c is a case where the wind blows from the southeast Fig. 3D is a diagram showing the operation of the strain gauge when the wind blows from the southeast.

As shown in Figure 3a, when the direction of the wind proceeds in the direction of the arrow (direction from south to north), the point of the first elastic plate 200 and the second elastic plate 300 in the east and west directions The output values of the strain gauges 330 and 340 mounted on the same are output as + voltage values. At this time, the first elastic plate 200 and the second elastic plate 300, the same deformation is made in proportion to the strength of the wind, thereby outputting the same change value of the electrical resistance. Therefore, the controller 400 may determine the speed of the wind by converting the amount of change in the output electrical resistance value. In addition, since the + voltage value is output in the same way in the east and west directions, the wind direction can also be known.

As shown in FIG. 3B, when the wind direction proceeds in the direction of the arrow (north to south), the output values of the strain gauges 330 and 340 mounted at the east and west points are equally -voltage. The value is output. At this time, the first elastic plate 200 and the second elastic plate 300, the same deformation is made in proportion to the strength of the wind and the same value of the change in the output is output. Therefore, the controller 400 may determine the speed of the wind by converting the amount of change in the output electrical resistance value. In addition, the direction of the wind can also be known because the output voltage in the east-west direction is the same -voltage value is output.

3A and 3B illustrate a method of determining wind speed and direction through the operation of the strain gauges 330 and 340 when the wind direction is southward and northward, but in the same way as in the case of trends and westwards. The speed and direction of the wind can be known through the operation of the strain gauges 230 and 240.

As described above, deformation occurs in the first elastic plate 200 and the second elastic plate 300 on which the strain gauges 230, 240, 330, and 340 are mounted according to the direction and speed of the wind. The direction and speed of the wind can be measured using the principle that the amount of change in the resistance values 230, 240, 330, and 340 occurs.

3C and 3D will be described a method of knowing the speed and direction of the wind in a direction other than the east, west, south, and north directions. 3C is a view showing the operation of the strain gauge when the wind blows from the southeast, and FIG. 3D is a view showing the operation of the strain gauge when the wind blows from the southeast.

As shown in FIG. 3C, when the wind direction proceeds in the direction of the arrow (south-east biased south), the change in the resistance value of the strain gauge 340 in the east direction becomes large, while the strain gauge in the south direction is large. The smaller the value of the change in the resistance value 240 is output. At this time, in order to prevent the wind direction from hitting the east elastic plate 200 and affecting the south direction, the vertical point where the east direction and the south direction meet may interfere with each other because the wind may escape as shown in FIG. 1. Does not occur. On the other hand, since the output values of the strain gauges 230 and 330 in the north direction and the west direction are minute, the direction and speed of the wind may be converted as a ratio of the output values of the strain gauges 340 and 240 in the east and the south.

As shown in FIG. 3D, when the wind direction proceeds in the direction of the arrow (east-eastwardly biased), the change in the resistance value of the strain gauge 340 in the east direction is small, while the strain in the south direction is small. The larger the value of the change in the resistance value of the gauge 240 is output. At this time, the center point is also perpendicular to each other, so that the wind hits the measuring plate and there is no interference between the east and south plates. On the other hand, since the output values of the strain gauges 230 and 330 in the north direction and the west direction are minute, it is possible to convert the direction and speed of the wind as a ratio of the output values of the east and south strain gauges 340 and 240. .

In this way, it can be known by converting the direction and speed of wind blowing from the northeast, northeast, northwest, northwest, southwest, and southwest, that is, wind direction and wind speed.

 On the other hand, such a wind direction and wind speed measuring device can be installed at a point where meteorological observation is possible, or can be directly measured and used at a place where wind direction and wind speed observation are needed by carrying it, and when it is desired to be installed at a point where meteorological observation is possible, a terrain or a building It is necessary to select a point that is not affected by the light, etc., and the selected position should be able to measure the weak wind speed, follow the fluctuating wind speed well, and consider the position that does not affect the recorded value due to the airflow disturbance. In consideration of the installation standard of the wind vane, it is desirable to install it at a height of 10m above the ground at a flat place 10 times higher than the obstacle height of the ground.

On the other hand, in the wind direction and wind speed measuring apparatus according to the present invention, if a compass plate or the like for easily measuring the azimuth angle is installed on the cylindrical support part 100 on which the first elastic plate 200 and the second elastic plate 300 are installed, It is possible to make sure that the measurement of is obtained, and thus more accurate measurement can be obtained.

Therefore, the user can measure the wind direction and the wind speed at the same time, as well as obtain an easy, easy and accurate result.

As described above, according to the present invention, since the strain gauge is attached to the first elastic plate and the second elastic plate to measure the amount of change in the electrical resistance value according to the deformation of the direction and speed of the wind, It can be measured. In addition, according to the present invention, it is possible to obtain accurate wind direction and wind speed measured values with little error through the strain gauge.

As described above, it is to be understood that the technical structure of the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Therefore, the exemplary embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from equivalent concepts should be construed as being included in the scope of the present invention.

Cylindrical Support: 100 First Elastic Plate: 200
1st fastening groove: 210 2nd elastic plate: 300
2nd tightening groove: 310 strain gauge: 230, 240, 330, 340
Control: 400 Regulating Circuit: 420
Amplification & Filtering Circuit: 410 A / D Converter: 430
Microprocessor: 440 Display: 450
Protective cap: 500

Claims (5)

Cylindrical support 100;
A first elastic plate 200 fixedly installed in a direction perpendicular to an upper surface of the cylindrical support part 100 and having a first fastening groove 210 formed in one direction from the one side to the other side opposite to the one side;
It is perpendicular to the upper surface of the cylindrical support portion 100, is fixedly installed in a direction perpendicular to the longitudinal direction of the first elastic plate 200, the first fastening groove 210 to be fitted in the first A second elastic plate 300 having a second fastening groove 310 formed in the direction of the other side of the first side from the one side of the elastic plate 200 on the opposite side of the one side of the elastic plate 200;
A protective cap 500 installed on the first elastic plate 200 and the second elastic plate 300 to protect the first elastic plate 200 and the second elastic plate 300;
Attached to the lower ends of each of the first elastic plate 200 and the second elastic plate 300 of the first elastic plate 200 and the second elastic plate 300 which changes in accordance with the strength and direction of the wind A plurality of gauge parts 230, 240, 330, and 340 for detecting electrical resistance values; And
A control unit for supplying power to the gauge unit 230, 240, 330, 340, and signal processing the electrical resistance value measured by the gauge unit 230, 240, 330, 340, to calculate the wind direction and wind speed 400, and
The plurality of gauge parts 230, 240, 330, and 340 include a pair of first strain gauges 230 and 240 and second strain gauges 330 and 340, respectively.
The first strain gauges 230 and 240 installed on the first elastic plate 200 and the second strain gauges 330 and 340 installed on the second elastic plate 300 maintain an angle of 90 ° to each other. Wind direction and wind speed measuring device installed. The method of claim 1,
The control unit 400,
A regulating circuit unit 420 for supplying power to the gauge unit 230, 240, 330, 340;
An amplification and filtering circuit unit 410 for receiving and amplifying a signal representing an electrical resistance value output from the gauge unit 230, 240, 330, 340, and filtering the amplified signal;
An A / D converter 430 for converting the filtered signal into a digital signal; And
A microprocessor (440) for receiving the converted digital signal and calculating wind direction and wind speed;
Including, wind direction and wind speed measuring apparatus. The method of claim 2,
The control unit 400 further includes a display unit 450 which displays the wind direction and the wind speed calculated by the microprocessor 440.
Wind direction and wind speed measuring device. The method of claim 1,
The upper surface of the cylindrical support portion 100 is formed with a fixing groove for fixing the first elastic plate 200 and the second elastic plate 300,
A first protrusion 220 and a second protrusion 320 are formed below the first elastic plate 200 and the second elastic plate 300 so as to fit in the fixing groove.
Wind direction and wind speed measuring device. The method of claim 1,
The gauge unit 230, 240, 330, 340 to measure the electrical resistance changes by the elastic deformation of the X-axis and Y-axis of the first elastic plate 200 and the second elastic plate 300,
Wind direction and wind speed measuring device.

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