JP2017194296A - Measurement device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measurement device with which it is possible to detect at least one of a wind direction and a wind velocity and which can yet be reduced in size.SOLUTION: A measurement device 10 comprises a wind receiving unit 20, a substrate, powder 80, an imaging device 30, and an arithmetic unit. The wind receiving unit 20 has an outer surface 22 capable of receiving a wind. The substrate is provided on the outer surface 22 of the wind receiving unit 20, and is coated with a wind catalyst that generates ions upon receiving a wind. The powder has an electrostatic propensity of being attracted to the substrate by ions generated by the wind catalyst of the substrate. The imaging device 30 detects the state of attraction of the powder 80 to the substrate. The arithmetic unit computes a wind direction and a wind velocity on the basis of the state of attraction of the powder 80 detected by the imaging device 30.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a measuring apparatus capable of measuring at least one of a wind direction and a wind speed.

  Conventionally, as this type of measuring apparatus, there is an apparatus described in Patent Document 1. The measurement apparatus described in Patent Literature 1 includes a frame member, a detector, a wind direction sensor, and a wind speed sensor. The frame member is supported rotatably about a first axis extending in the first direction. The detector has a detection main body and a blade. The detection main body is disposed inside the frame member. The detection main body is supported so as to be rotatable with respect to the frame member around a second axis extending in a second direction orthogonal to the first direction. The blade is disposed on one end side in the direction orthogonal to the second axis of the detection body. The blades receive the air flow and rotate the frame member and the detection main body, respectively, and direct the other end in the direction orthogonal to the second axis of the detection main body toward the upstream side of the air flow. The wind direction sensor and the wind speed sensor are arranged in the detection main body. The wind direction sensor detects the wind direction as the direction in which the other end of the detection main body in the direction orthogonal to the second axis faces. The wind speed sensor detects the wind speed of the air flow.

Japanese Unexamined Patent Publication No. 2015-222219

  As described above, the measurement device described in Patent Document 1 is a device that detects the wind direction and the wind speed based on the operation of mechanical movable parts such as a frame member, a detection main body, and a blade. In such an apparatus, in order to detect the wind direction and the wind speed with high accuracy, it is necessary to ensure the reliability of the operation of the mechanical movable part. Therefore, there is a limit in reducing the size of the mechanical movable part. This is one of the factors that hinder downsizing of the measuring device.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a measuring device capable of detecting at least one of a wind direction and a wind speed and capable of being downsized.

  In order to solve the above problems, the measuring device (10) includes a wind receiving part (20), a base material (60), a powder (80), a state detection part (30), and a calculation part (90). With. The wind receiving portion has an outer surface (22) capable of receiving wind. The base material is provided on the outer surface of the wind receiving portion, and is coated with a wind catalyst that generates ions by receiving wind. The powder has a charging property that is attracted to the base material by ions generated from the wind catalyst of the base material. The state detection unit detects the state of the powder adhering to the base material. The calculation unit calculates at least one of the wind direction and the wind speed based on the powder suction state detected by the state detection unit.

  According to this configuration, when the wind receiving part receives wind, ions are generated from the wind catalyst of the base material provided in the wind receiving part, and the powder is absorbed by the base material by the ions generated from the wind catalyst. Attached. At this time, the state of the powder adhering to the substrate is detected by the state detection unit, and at least one of the wind direction and the wind speed is calculated by the calculation unit based on the detection result of the state detection unit. According to such a configuration, it is possible to measure at least one of the wind direction and the wind speed while a mechanical movable part that operates by receiving wind is unnecessary, compared with a conventional measurement device, Miniaturization is possible.

  In addition, the code | symbol in the bracket | parenthesis as described in the said means and a claim is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

  According to the present invention, it is possible to provide a measuring device that can detect at least one of a wind direction and a wind speed and can be downsized.

It is a front view which shows the front structure of the measuring device of embodiment. It is a top view which shows the planar structure of the measuring device of embodiment. It is sectional drawing which shows the cross-section along the III-III line of FIG. It is sectional drawing which shows the cross-section of the base material provided in the outer surface of the wind receiving part of embodiment. It is a block diagram which shows the electric constitution of the measuring device of embodiment. It is sectional drawing which shows the operation example of the measuring device of embodiment.

Hereinafter, an embodiment of the measurement apparatus will be described.
As shown in FIGS. 1 and 2, the measurement device 10 of the present embodiment includes a wind receiving unit 20, an imaging device 30, a support column 40, and a pedestal 50. Hereinafter, for the sake of convenience, the three axial directions orthogonal to each other are represented as “X direction”, “Y direction”, and “Z direction”. One direction of the Z direction is represented by the Z1 direction, and the other direction of the Z direction is represented by the Z2 direction.

  As shown in FIG. 3, the wind receiving portion 20 is formed in a hollow spherical shape having a space 24 inside. Specifically, the wind receiving part 20 is comprised by the some metal wire 21 arrange | positioned at the grid | lattice form. The gaps between the plurality of metal wires 21 are filled with transparent glass or acrylic resin. Thereby, the internal space 24 of the wind receiving part 20 is a closed space. Moreover, the wind receiving part 20 has the see-through structure which can visually recognize the inside from the outside. In addition, the symbol “C” in FIG. 3 represents the center point of the wind receiving portion 20. 1 to 3, the axis m1 passes through the center point C and is parallel to the X direction, the axis m2 passes through the center point C and is parallel to the Y direction, and the axis m3 is the center point. An axis passing through C and parallel to the Z direction is shown.

  As shown in FIG. 4, a base material 60 is provided on the outer surface 22 of the wind receiving portion 20, more specifically on the outer surface of the metal wire 21. A wind catalyst 61 is coated on the outer surface of the substrate 60. The wind catalyst 61 is made of a gel-like member in which, for example, titanium oxide is made amorphous and fine particles. The wind catalyst 61 forms a magnetic field by receiving wind and emits negative ions, for example. Further, as the wind speed that is the speed of the wind received by the wind receiving portion 20 increases, the air volume that is the amount of wind received by the base member 60 increases, and thus the amount of ions released from the wind catalyst 61 increases.

  As shown in FIG. 3, powder 80 is accommodated in the internal space 24 of the wind receiving portion 20. The powder 80 is made of a very fine powder having a charging property attracted by ions generated from the wind catalyst 61 of the substrate 60, for example, an atomized aluminum powder having an average particle diameter of about “25 [μm]”. When the Z2 direction is vertically downward, as shown in FIG. 3, the powder 80 is deposited on the portion in the Z2 direction inside the wind receiving portion 20. Further, when ions are generated from the wind catalyst 61 of the substrate 60, an amount of the powder 80 corresponding to the amount of the ions is attracted to the inner surface 23 of the wind receiving portion 20. Therefore, as the amount of ions released from the wind catalyst 61 increases, the amount of the powder 80 adhering to the inner surface 23 of the wind receiving portion 20 increases.

  The imaging device 30 functions as a state detection unit that detects the suction state of the powder 80 with respect to the base material 60 by imaging the inside of the wind receiving unit 20. As shown in FIGS. 1 and 2, the imaging device 30 includes five cameras 31 to 35 provided on the outer surface 22 of the wind receiving unit 20. The cameras 31 to 35 are digital cameras such as a CCD camera that can take an image of the inside of the wind receiving unit 20 through a transparent portion made of glass or acrylic resin in the wind receiving unit 20. The cameras 31 to 35 take images of the inside of the wind receiving unit 20 and output image data inside the taken wind receiving unit 20.

  As shown in FIGS. 1 and 2, the camera 31 is disposed at a position corresponding to the Z1 direction among positions on the outer surface 22 of the wind receiving portion 20 on the axis m3. The imaging direction of the camera 31 is set in a direction from the outer surface 22 of the wind receiving unit 20 toward the center point C of the wind receiving unit 20 along the axis m3. The cameras 32 and 33 are respectively arranged at positions on the axis m1 on the outer surface 22 of the wind receiving unit 20. The imaging directions of the cameras 32 and 33 are set in a direction from the outer surface 22 of the wind receiving unit 20 toward the center point C of the wind receiving unit 20 along the axis m1. The cameras 34 and 35 are respectively arranged at positions on the axis m2 on the outer surface 22 of the wind receiving unit 20. The imaging direction of the cameras 34 and 35 is set to a direction from the outer surface 22 of the wind receiving unit 20 toward the center point C of the wind receiving unit 20 along the axis m2. By using the image data output from each of the cameras 31 to 35, the state of the powder 80 attracted to the inner surface 23 of the wind receiving unit 20 can be detected in the entire area of the inner surface 23 of the wind receiving unit 20. It is possible.

  As FIG. 1 shows, the support | pillar 40 is formed in the column shape. One end of the support column 40 is fixed to a portion of the outer surface 22 of the wind receiving unit 20 in the Z2 direction. The other end of the support column 40 is fixed to the outer surface 51 of the pedestal 50 in the Z1 direction. The pedestal 50 is formed in a rectangular parallelepiped shape. The measuring device 10 is arranged so that the outer surface 52 of the pedestal 50 in the Z2 direction is brought into contact with an arbitrary installation surface.

Next, the electrical configuration of the measuring apparatus 10 will be described.
As shown in FIG. 5, the measurement apparatus 10 further includes a calculation unit 90 and a display unit 100.

  The calculation unit 90 is mainly configured by a microcomputer having a CPU 91, a memory 92, and the like. Image data output from the cameras 31 to 35 is captured in the arithmetic unit 90. The calculation unit 90 detects the state of the powder 80 sucked on the inner surface 23 of the wind receiving unit 20 based on the image data output from the cameras 31 to 35, respectively. The computing unit computes the direction and speed of the wind received by the wind receiving unit 20 based on the detected state of the powder 80 and displays the computed wind direction and wind speed on the display unit 100.

  Specifically, the calculation unit 90 acquires image data inside the wind receiving unit 20 with a predetermined cycle by the cameras 31 to 35. Note that communication between the calculation unit 90 and the cameras 31 to 35 is not limited to wired communication, and may be wireless communication. The calculation unit 90 performs appropriate image processing on the image data inside the wind receiving unit 20 to thereby position the powder 80 on the inner surface 23 of the wind receiving unit 20 and the powder at the position. The amount of suction of the body 80 is calculated. The calculation unit 90 detects the direction corresponding to the position where the powder 80 is sucked on the inner surface 23 of the wind receiving unit 20 as the wind direction. In addition, the calculation unit 90 calculates the wind speed based on the amount of suction of the powder 80. The calculation unit 90 obtains the wind direction and the wind speed in this way and displays them on the display unit 100.

Next, an operation example of the measurement apparatus 10 of the present embodiment will be described.
When the measuring apparatus 10 is installed so that the Z2 direction is vertically downward, as shown in FIG. 3, the powder 80 accumulates in a portion in the Z2 direction inside the wind receiving unit 20. When the wind receiving portion 20 receives wind in this state, ions are generated from the wind catalyst 61 of the base member 60 provided in the portion receiving the wind. For example, it is assumed that the wind receiving unit 20 receives wind in the direction indicated by the arrow W as shown in FIG. In this case, ions are generated from the wind catalyst 61 of the base member 60 disposed in the portion A receiving the wind among the base member 60 provided on the outer surface 22 of the wind receiving portion 20. When the powder 80 is attracted to the ions generated in the portion A, a part of the powder 80 is attracted to the inner surface 23 of the wind receiving portion 20 corresponding to the portion A as shown in FIG. . The suction state of the powder 80 on the inner surface 23 of the wind receiving unit 20 is captured by the cameras 31 to 35, and the calculation unit 90 acquires image data corresponding to the internal state of the wind receiving unit 20. When the calculation unit 90 detects that the powder 80 is sucked to the inner surface 23 of the wind receiving unit 20 corresponding to the portion A based on the acquired image data corresponding to the internal state of the wind receiving unit 20, A direction W corresponding to the portion A is detected as a wind direction. In addition, the calculation unit 90 detects the wind direction based on the amount of powder 80 sucked on the inner surface 23 of the wind receiving unit 20 corresponding to the portion A. Then, the calculation unit 90 displays the detected wind direction and wind speed on the display unit 100.

  According to the measuring apparatus 10 of this embodiment described above, the operations and effects shown in the following (1) to (5) can be obtained.

  (1) The measuring apparatus 10 of the present embodiment can detect the wind direction and the wind speed while having a structure that does not require a mechanical movable part that operates by receiving wind. Therefore, the size can be reduced as compared with the conventional measuring apparatus.

  (2) The wind receiving portion 20 is formed in a hollow shape. The powder 80 is housed inside the wind receiving portion 20 and is attracted to the inner surface 23 of the wind receiving portion 20 by ions generated from the wind catalyst 61 of the base member 60. The imaging device 30 detects the suction state of the powder 80 on the inner surface 23 of the wind receiving unit 20. In this way, the powder 80 is not scattered outside the wind receiving portion 20 by accommodating the powder 80 inside the wind receiving portion 20 formed in a hollow shape. Therefore, it is possible to repeatedly measure the wind direction and the wind speed.

  (3) The imaging device 30 is used as a state detection unit that detects a state where the powder 80 is attracted to the substrate 60. Thereby, it becomes possible to more appropriately detect the adhering state of the powder 80 to the substrate 60.

  (4) The wind receiving part 20 has a structure in which the inside can be visually recognized from the outside. The imaging device 30 images the inside of the wind receiving unit 20 from the outer surface 22 of the wind receiving unit 20 with the cameras 31 to 35. Thereby, since the imaging device 30 can be arrange | positioned outside the wind receiving part 20, the wind receiving part 20 can be reduced in size.

  (5) The imaging device 30 is fixed to the outer surface 22 of the wind receiving unit 20. Thereby, since the position of the imaging device 30 with respect to the wind receiving part 20 is fixed, it becomes possible to detect a wind direction and a wind speed more exactly.

In addition, the said embodiment can also be implemented with the following forms.
The calculation unit 90 may correct the detected wind direction based on the attitude of the measurement device 10. For example, an attitude sensor and a geomagnetic sensor are provided inside the wind receiving unit 20. The posture sensor detects the relative inclination angle of the measurement apparatus 10 with respect to the vertical direction by detecting the direction of gravity acceleration, for example, and outputs a detection signal corresponding to the detected inclination angle. The geomagnetic sensor detects the direction of geomagnetism and outputs a detection signal corresponding to the detected direction of geomagnetism. The calculation unit 90 captures the detection signal of the attitude sensor and the detection signal of the geomagnetic sensor at a predetermined cycle. The calculation unit 90 detects the attitude of the measuring device 10 in the vertical direction and the geomagnetic direction based on the detection signals of the attitude sensor and the geomagnetic sensor, and calculates a wind direction correction value based on the detected measuring device 10. . The calculation unit 90 calculates the wind direction based on the image data acquired by the imaging device 30, and then corrects the calculated wind direction based on the wind direction correction value. According to such a configuration, even when the measuring device 10 is installed in a place with a large undulation, it is possible to detect the accurate wind direction and to easily change the installation location of the measuring device 10.

  -The state detection part which detects the adhering state of the powder 80 with respect to the base material 60 is not restricted to the imaging device 30, and can use an appropriate | suitable apparatus. For example, it is also possible to use a laser device that includes an irradiation unit that irradiates laser light into the wind receiving unit 20 from the outer surface 22 of the wind receiving unit 20 and a light receiving unit that receives laser light emitted from the irradiation unit. it can. In this laser apparatus, when the powder 80 is attracted to the inner surface 23 of the wind receiving portion 20, the laser light is diffracted or scattered before and after the powder 80, so the intensity of the laser light received by the light receiving portion is low. Change. Therefore, the adhering state of the powder 80 to the base material 60 can be detected based on the intensity of the laser light received by the light receiving unit.

  -The shape of the wind-receiving part 20 is not restricted to a hollow spherical shape, It is possible to change into arbitrary shapes, such as square box shape.

The imaging device 30 may be arranged away from the outer surface 22 of the wind receiving unit 20.
The measuring device 10 may detect only one of the wind direction and the wind speed.
The means and / or function provided by the calculation unit 90 can be provided by software stored in the substantial memory 92 and a computer that executes the software, only software, only hardware, or a combination thereof. For example, when the arithmetic unit 90 is provided by an electronic circuit which is hardware, it can be provided by a digital circuit including a large number of logic circuits or an analog circuit.

  -This invention is not limited to said specific example. That is, the above-described specific examples that are appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. For example, each element included in each of the specific examples described above and its arrangement, material, shape, size, and the like are not limited to those illustrated, and can be changed as appropriate. Moreover, each element with which embodiment mentioned above is provided can be combined as long as it is technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

10: Measuring device 20: Wind receiving unit 22: Outer surface 30: Imaging device (state detecting unit)
60: Base material 80: Powder 90: Calculation unit

Claims (5)

A wind receiving portion (20) having an outer surface (22) capable of receiving wind;
A base material (60) provided on the outer surface of the wind receiving portion and coated with a wind catalyst that generates ions by receiving wind;
A chargeable powder (80) attracted to the substrate by ions generated from the wind catalyst of the substrate;
A state detection unit (30) for detecting the state of the powder adhering to the substrate;
A calculation unit (90) for calculating at least one of a wind direction and a wind speed based on the suction state of the powder detected by the state detection unit;
A measuring device comprising: The wind receiving portion is formed in a hollow shape,
The powder is housed inside the wind receiving portion, and is sucked to the inner surface of the wind receiving portion by ions generated from the wind catalyst of the base material,
The measurement device according to claim 1, wherein the state detection unit detects a suction state of the powder on an inner surface of the wind receiving unit. The measurement device according to claim 2, wherein the state detection unit is an imaging device that images the inside of the wind receiving unit. The wind receiving portion has a structure in which the inside can be visually recognized from the outside,
The measuring device according to claim 3, wherein the imaging device images the inside of the wind receiving portion from an outer surface of the wind receiving portion. The measurement device according to claim 4, wherein the imaging device is fixed to an outer surface of the wind receiving portion.

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