JP2018091684A - Measurement device for ceiling air control port - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measurement device for a ceiling air control port, which is usable regardless of the height of a ceiling having the ceiling air control port and an installation state of furniture and devices below the ceiling air control port.SOLUTION: A measurement device for a ceiling air control port, which measures the volume and humidity of air passing through a ceiling air control port 11, includes: a measurement unit 12 including an air collection hood 16 for collecting the air passing through the ceiling air control port 11, and a sensor 29 for detecting the volume and humidity of the air collected by the air collection hood 16; and flying means 13 which flies the measurement unit 12 to the ceiling air control port 11 as a target, so as to make the air collection hood 16 contact with a ceiling surface in such a manner that the air collection hood 16 covers the ceiling air control port 11.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a measuring device for a ceiling air inlet for measuring the air volume and temperature of air passing through the ceiling air inlet.

  Conventionally, when measuring the air volume and temperature of air passing through ceiling air vents such as air outlets and air inlets installed on the ceiling surface during construction of air conditioning equipment and ventilation equipment, maintenance inspection, etc. In general, a scaffold such as a stepladder is installed below the mouth, and an operator rides on the scaffold and moves the measuring instrument close to the ceiling air vent.

  However, this method has a problem that a scaffolding facility is required, which is troublesome, and it is difficult to improve safety because it is a work at a high place.

  Therefore, in order to solve this type of problem, the device is moved by hand to the lower side of the ceiling air intake, the air collecting hood is raised by the lifting post and brought into contact with the air intake, and the air volume and air temperature are detected by the built-in sensor. Has been proposed (refer to Patent Document 1).

JP 2004-257842 A

  However, in the air volume / air temperature measuring device described in Patent Document 1 described above, the size and weight of the device increase as the ceiling height at which the air vents are installed increases. Considering this, there is a problem that the ceiling height that can be measured is substantially limited (for example, about 5 m).

In addition, there is a problem that the measuring device cannot be installed when a fixture or equipment is placed below the ceiling air vent.

  The present invention has been made to solve the above-described problems, and is used regardless of the ceiling height at which the ceiling air vent is installed and the installation status of fixtures and equipment below the ceiling air vent. An object of the present invention is to provide a measuring device for ceiling air vents that can be used.

  In order to achieve the above-described object, the present invention provides a measuring device for a ceiling air inlet for measuring the air volume and temperature of air passing through a ceiling air inlet, and the air passing through the ceiling air inlet is obtained. A measuring unit having a wind collecting hood for collecting, and a sensor for detecting the air volume and temperature of the air collected by the wind collecting hood, and the ceiling air vent opening that targets the measuring unit And flying means for bringing the wind collecting hood into contact with the ceiling surface so as to cover the ceiling air vent.

  Further, in the ceiling air inlet measurement device according to the present invention, the flying means is provided around the measurement unit, and is respectively arranged at a plurality of points symmetrical with respect to the center of the measurement unit in plan view. A propeller that is movable so that the propeller can be moved in the vertical direction, and the propeller is moved downward by the vertical mechanism during flight while the propeller is moved upward by the vertical mechanism during hovering. And a flight control unit for controlling.

  Further, in the ceiling air vent measuring apparatus according to the present invention, the vertical mechanism includes a linear actuator, and the linear actuator is provided in a vertical posture in which a motor is disposed below and closer to the measurement unit than the propeller. It is characterized by being.

  Further, in the ceiling air inlet measuring device according to the present invention, the wind collecting hood has a shape widened upward, a sensor hood is formed downward from the lower end of the wind collecting hood, The sensor is supported inside a sensor hood.

  In the ceiling air inlet measuring device according to the present invention, the flying means is provided with a propeller guard so as to surround an outer periphery, and a buffer is provided on an outer surface of the propeller guard. .

  ADVANTAGE OF THE INVENTION According to this invention, the measuring apparatus for ceiling air vents which can be used irrespective of the ceiling height in which a ceiling air vent is installed, and the installation condition of the apparatus etc. under the ceiling air vent is provided. be able to.

It is the schematic which shows the whole structure of the measuring apparatus for ceiling air vents which concerns on embodiment of this invention. It is a top view which shows the air volume measuring apparatus main body of the measuring apparatus for ceiling air vents which concerns on embodiment of this invention. It is a block diagram which shows the whole structure of the measuring apparatus for ceiling air vents which concerns on embodiment of this invention. It is a side view which shows the effect | action of the measuring apparatus for ceiling air vents which concerns on embodiment of this invention. It is explanatory drawing which shows the method of detecting the position of the measuring apparatus for ceiling air vents which concerns on embodiment of this invention with an external camera. It is explanatory drawing which shows the method of aligning the measuring apparatus for ceiling air vents which concerns on embodiment of this invention with a ceiling air vent with an internal camera. It is a side view which shows the state at the time of hovering of the measuring apparatus for ceiling air vents concerning embodiment of this invention. It is a side view which shows the state at the time of the flight of the measuring apparatus for ceiling air control openings which concerns on embodiment of this invention.

  Hereinafter, a measuring device for ceiling air vent according to an embodiment of the present invention will be described with reference to the drawings. In the following description, a case in which the ceiling air inlet measurement device is used to measure the air volume of air passing through the ceiling air inlet will be described as an example. Further, the front-rear and left-right orientations of the ceiling air vent measuring device will be described with reference to the orientation shown in FIG. 2 for convenience of explanation.

  As shown in FIGS. 1 to 3, the measuring apparatus for ceiling air vent according to the embodiment of the present invention includes an air volume measuring unit 12 and an air volume measuring unit 12 that measure the air volume of air passing through the ceiling air vent 11. The air volume measuring device main body 10 provided with the flying means 13 for flying to the target ceiling air outlet 11, the external camera 14 for measuring the position of the air volume measuring device main body 10, the air volume measuring unit 12, the flying means 13 and the outside An integrated control computer 15 capable of wireless communication with the camera 14 is provided.

  The air volume measuring unit 12 wirelessly communicates between the wind collecting hood 16 for collecting the air passing through the ceiling air vent 11, the sensor hood 18 having the wind speed sensor 17 mounted therein, and the integrated control computer 15. And a possible control box 19.

  The air collecting hood 16 has a rectangular cylindrical shape and is widened upward. A rubber packing 20 is attached to the upper end of the air collecting hood 16 over the entire circumference. The sensor hood 18 includes an upper portion 18a formed in a rectangular tube shape downward from the lower end of the air collecting hood 16, a lower portion 18b formed by bending outward from the upper portion 18a, It is comprised by. Four leg portions 21 are attached so as to incline outward from the vicinity of the connection portion between the air collecting hood 16 and the sensor hood 18. The lower end of each leg 21 extends downward from the lower end of the sensor hood 18, and the air flow measuring device main body 10 can be self-supported by each leg 21.

  Sensor support portions 22 extend in a cantilever shape from the five locations on the inner surface of the upper portion 18a of the sensor hood 18 toward the inside. A wind speed sensor 17 is attached to the tip of each sensor support portion 22, and the wind speed sensor 17 is equally disposed around the inner center of the sensor hood 18 and its periphery.

  The control box 19 is fixed to the outer surface of the upper portion 18a of the sensor hood 18 as shown in FIG. As shown in FIG. 3, the control box 19 includes a control circuit 23 of the wind speed sensor 17 and a communication circuit 24 interposed between the control circuit 23 and the integrated control computer 15.

  The flying means 13 is provided on a thin rod-like support member 25 that is fixed in a lattice shape around the air flow measurement unit 12. The flying means 13 includes a vertical mechanism 26 that is supported by a support member 25 and is movable in the vertical direction, a propeller 28 that is supported by the vertical mechanism 26, an internal camera 29 that is provided so as to face the ceiling surface, and ceiling air control. A gyro sensor 30 for detecting the flight attitude of the mouth measuring device 10, a microcomputer computer 31 for performing flight control of the ceiling air inlet measuring device 10, and a microcomputer 31 and an integrated control computer 15 are interposed. Wireless communication module 32, and a battery 33 and an external power supply 34 for supplying power to each of the above components. Note that whether the power supply to each of the above-described components is performed by either the battery 33 or the external power supply 34 can be selected by switching the cable connection.

  The support member 25 includes a pair of front and rear first support members 35 and 35 disposed in parallel and parallel to each other so as to sandwich the connection portion between the wind collection hood 16 and the sensor hood 18 from both the front and rear sides. A pair of left and right second support members 36, 36 are arranged horizontally and parallel to each other so as to sandwich the connection portion with the sensor hood 18 from both the left and right sides. A propeller guard 37 is provided so as to surround the outer periphery of the support member 25.

  The vertical mechanism 26 includes eight linear actuators 38 provided at two locations on the first support members 35 and 35 and the second support members 36 and 36 so as to sandwich the air volume measurement unit 12 from both sides, and And eight propeller support portions 39 provided respectively.

  The linear actuator 38 includes a ball screw 40 fixed in a vertical posture at a position close to the air volume measuring unit 12 in the first support members 35 and 35 and the second support members 36 and 36, and a motor provided at the lower end of the ball screw 40. 41, and the motor 41 enables the ball screw 40 to rotate forward and backward in a vertical posture.

  The propeller support 39 extends horizontally outward from the ball screw 40 along the first support members 35 and 35 or the second support members 36 and 36 to an intermediate position between the air flow measurement unit 12 and the propeller guard 37. The inner end of the propeller support 39 is screwed into the ball screw 40, and the outer end of the propeller support 39 supports the propeller 28 and the motor 27. Thereby, the propeller support portion 39 can move up and down along the ball screw 40 as the ball screw 40 rotates.

  The propellers 28 are equally arranged at eight points symmetrical with respect to the center of the air flow measurement unit 12 in a plan view, and can be rotated by a motor 27 provided below the propeller 28. The internal camera 29 is attached to the tip of a camera support portion 42 that extends rearward from the center portion of the first support member 35 on the rear side.

  The gyro sensor 30, the microcomputer computer 31, the wireless communication module 32, and the battery 33 are equally disposed at positions that are point-symmetric with respect to the center of the air volume measuring unit 12 in plan view. Specifically, the gyro sensor 30 is fixed to the front end portion of the second support member 36 on the left side, the microcomputer computer 31 is fixed to the left end portion of the first support member 35 on the rear side, and the wireless communication module 32 is The battery 33 is fixed to the right end portion of the front first support member 35, and is fixed to the rear end portion of the right second support member 36. Thus, by arranging each control component etc. equally well in a balanced manner, it is possible to improve the stability and controllability of the air volume measuring device body 10 during flight.

  The propeller guard 37 is formed in a substantially rectangular shape parallel to the air collecting hood 16 in a plan view, and four corners are curved. A marker plate 43 is attached to the center of the front side of the propeller guard 37. On the marker plate 43, red circular markers 44 (see FIG. 5) are drawn side by side so as to be visible from the front. A buffer body 45 is attached to the outer surface of the propeller guard 37 except for a portion where the marker plate 43 is attached, and the buffer body 45 is constituted by an air bag, for example.

  The external camera 14 can be placed on the floor separately from the air volume measuring unit 12 and the flying means 13. The external camera 14 is provided so that wireless communication with the integrated control computer 15 is possible, and a battery (not shown) is mounted.

  The integrated control computer 15 is provided so as to be capable of wireless communication with the air volume measuring unit 12, the flying means 13, and the external camera 14, respectively. The integrated control computer 15 is equipped with an interface (not shown) and receives data from the air volume measuring unit 12 (wind speed measurement result by the wind speed sensor 17, an acquired image of the internal camera 29, a remaining state of the battery 33, etc.). The control command (rotation control command for the motor 27, wind speed measurement command for the wind speed sensor 17) can be transmitted, and the image can be received from the external camera 14.

  Next, a method for measuring the air volume of the air passing through the ceiling air inlet 11 by the ceiling air inlet measuring device 10 according to the embodiment of the present invention will be described mainly with reference to FIGS.

  First, as shown in FIG. 4, the external camera 14 and the air volume measuring device main body 10 are installed on the floor surface of the room in which the ceiling air vent 11 that is the target of air volume measurement is provided. At this time, the CAD data of the room and the installation position of the external camera 14 on the CAD data are stored in advance in the storage unit of the integrated control computer 15, and the external camera 14 is included so that the movement range of the air flow measuring device main body 10 can be accommodated. The air volume measuring device main body 10 is installed so as to be within the angle of view of the external camera 14 (vertical and horizontal 90 °).

  The integrated control computer 15 analyzes the image acquired from the external camera 14 and recognizes the shape, size, and position of the two markers 44 attached to the image forming apparatus main body 10 to maintain the level. The position and orientation of the air flow measuring device main body 10 are obtained. The integrated control computer 15 obtains the position and orientation of the air flow measuring device main body 10, obtains the positional relationship between the air flow measuring device main body 10 and the target ceiling air vent 11, and controls the motor 27 to obtain eight pieces. The rotation speed of the propeller 28 is controlled. As a result, the air flow measuring device main body 10 moves horizontally and rises in a slightly inclined posture, and flies on the shortest path to a position directly below the target ceiling air inlet 11 (see FIG. 4A).

  At the time of this flight, the microcomputer 31 of the flying means 13 rotates the ball screw 40 in the forward direction by the motor 41 and moves the propeller support 39 downward (see the arrow in FIG. 8), as shown in FIG. Thereby, the center-of-gravity position of the air volume measuring device body 10 is increased, and the controllability at the time of flight can be improved.

  When the air flow measuring device main body 10 thus flies just below the target ceiling air vent 11 and the target ceiling air vent 11 is recognized by the internal camera 29, the integrated control computer 15 The position and direction of the air flow measuring device main body 10 are controlled so as to be aligned with the ceiling air intake 11 by switching to the air flow measuring device main body 10 and the ceiling air intake 11 using 29.

  In this case, the position control of the air flow measuring device main body 10 is performed by comparing the image acquired from the internal camera 29 with the image of the ceiling air vent 11 input in advance to the integrated control computer 15, and the ceiling air vent 11 is connected to the internal camera. This is performed by determining where in the image acquired from 29 (pattern matching), and controlling the position of the air flow measuring device main body 10 so that the ceiling air inlet 11 is arranged at the center of the camera image.

  Further, the horizontal direction of the air flow measuring device main body 10 is controlled by extracting the color boundary from the image acquired from the internal camera 29 as a line segment (Hough conversion) and the image of the edge of the ceiling air intake 11 obtained from the ceiling. An angle θ (see FIG. 6) formed with the local coordinate axis is obtained, so that θ is 0 ° when θ is smaller than 45 °, and θ is 90 ° when θ is 45 ° or more. Further, it is performed by controlling the horizontal direction of the air flow measuring device main body 10.

  When the air flow measuring device main body 10 is thus aligned with the target ceiling air intake 11, the integrated control computer 15 moves vertically toward the ceiling air intake 11 while holding the air flow measuring device main body 10 in a horizontal posture. (See FIG. 4B), and the rubber packing 20 of the air collecting hood 12 is stopped in a state of pressing against the ceiling surface. When moving in the vertical direction and stopping (hovering), the microcomputer 31 of the flying means 13 rotates the ball screw 40 in the reverse direction by the motor 41 and moves the propeller support 39 upward as shown in FIG. (See arrow in FIG. 7). Thereby, the gravity center position of the air flow measuring device main body 10 is lowered, and the stability at the time of vertical movement and stop (hovering) can be improved.

  Next, the integrated control computer 15 obtains the average value of the wind speed passing through the sensor hood 18 based on the wind speed measurement result measured by the five wind speed sensors 17 while maintaining this stop (hovering) state, and this average The air volume passing through the ceiling air control opening 11 is calculated by multiplying the value by the cross-sectional area of the sensor hood 18. At this time, since the air collecting hood 16 is pressed against the ceiling surface without a gap, the air volume can be accurately calculated.

  Next, when the integrated control computer 15 determines that there is a ceiling air intake 11 for measuring the next air volume based on the CAD information of the room and the measurement result by the external camera 14, the wind power measuring device body 10 is moved to the next ceiling air intake. 11 flight (see FIG. 4C). And after aligning from the image of the ceiling air intake 11 taken by the internal camera 29 by the same method as described above, the air volume is measured.

  Thereafter, the same method is repeated for all the ceiling air vents 11 to be measured, and when the wind measurement at all the ceiling air vents 11 is completed, the integrated control computer 15 moves the wind force measuring device main body 10 to the floor surface. Landing at the end of the flight, the flight is completed and the air flow measurement operation is completed.

  As described above, according to the measuring device for ceiling air vent according to the embodiment of the present invention, since no scaffolding equipment is required for measuring the air volume of the ceiling air vent 11, work at height is eliminated and safety is ensured. Can be improved.

  Moreover, since the ceiling height at which the ceiling air vent 11 is installed is increased, the size and weight of the apparatus do not increase, so that the measurable ceiling height is not limited. Furthermore, since it can be used even in the situation where a fixture or equipment is placed below the ceiling air vent 11, versatility can be improved.

  Further, when the air flow measuring device main body 10 is caused to fly right below the target ceiling air inlet 11, the controllability can be improved by raising the position of the center of gravity of the air flow measuring device main body 10 by the vertical mechanism 26. It is possible to efficiently fly the measuring apparatus main body 10 to the position just below the ceiling air vent 11 at the shortest distance. On the other hand, when the air flow measuring device main body 10 is moved in the vertical direction directly below the ceiling air vent 11 and is stopped (hovered) on the ceiling surface, the vertical position of the air flow measuring device main body 10 is lowered by the vertical mechanism 26. Therefore, it is possible to reliably prevent the air flow measuring device body 10 from being inclined.

  In the above description of the embodiment of the present invention, the case where the ceiling air inlet measurement device according to the present invention is used to measure the air volume of the air passing through the ceiling air inlet 11 has been described. This is merely an example, and the present invention can also be applied to the case where the temperature of the air passing through the ceiling air inlet 11 is measured.

  In addition, since the above description of the embodiment of the present invention describes a preferred embodiment of the measuring apparatus for ceiling air vent according to the present invention, various technically preferable limitations are attached. In some cases, the technical scope of the present invention is not limited to these embodiments unless specifically described to limit the present invention. That is, the above-described components in the embodiment of the present invention can be appropriately replaced with existing components and the like, and various variations including combinations with other existing components are possible. The description of the embodiment of the present invention described above does not limit the contents of the invention described in the claims.

DESCRIPTION OF SYMBOLS 10 Airflow measuring apparatus main body 11 Ceiling air control opening 12 Airflow measuring unit 13 Flying means 16 Wind collecting hood 17 Wind speed sensor 18 Sensor hood 26 Vertical mechanism 28 Propeller 37 Propeller guard 38 Linear actuator 41 Motor 45 Buffer

Claims (5)

A ceiling air vent measuring device for measuring the air volume and temperature of air passing through the ceiling air vent,
A measuring unit having a wind collecting hood for collecting air passing through the ceiling air vent, and a sensor for detecting the air volume and temperature of the air collected by the wind collecting hood;
Flying means for causing the measurement unit to fly to the target ceiling air outlet and bringing the wind collecting hood into contact with the ceiling surface so as to cover the ceiling air inlet;
A measuring device for ceiling air vents, comprising: The flying means is provided around the measurement unit,
Propellers disposed respectively at a plurality of points symmetrical with respect to the center of the measurement unit in plan view;
A vertical mechanism provided so that the propeller can be moved in the vertical direction;
A flight control unit that controls the propeller to move downward by the vertical mechanism during flight while controlling the propeller to move upward by the vertical mechanism during hovering;
The ceiling air vent measuring device according to claim 1, comprising:   3. The ceiling according to claim 2, wherein the vertical mechanism includes a linear actuator, and the linear actuator is provided at a position closer to the measurement unit than the propeller in a vertical posture in which a motor is disposed below. Measuring device for air intake.   The wind collecting hood has a shape widened upward, a sensor hood is formed downward from a lower end of the wind collecting hood, and the sensor is supported inside the sensor hood. The measuring apparatus for ceiling air vents according to any one of claims 1 to 3.   The ceiling according to any one of claims 1 to 4, wherein a propeller guard is provided on the flying means so as to surround an outer periphery, and a buffer is provided on an outer surface of the propeller guard. Measuring device for air intake.

Images