A sensor device and detection method for measuring roof wind pressure

Abstract

The present invention provides a sensor device and a detection method for measuring roof wind pressure, wherein the sensor device for measuring roof wind pressure comprises a wind pressure measuring instrument, a base, a wind direction measuring assembly, a driving mechanism, a wind hood and a controller, wherein a receiving cavity is provided at the bottom of the base, and a detection rod extending upward is provided at the top of the base; the wind direction measuring assembly comprises a plurality of detection blades connected to the outer periphery of the detection rod, and a pressure sensor is provided on the force-bearing surface of each detection blade; the driving mechanism is fixedly connected to the base and located in the receiving cavity, and the driving mechanism has a rotating shaft that is rotatably matched with the through hole; the wind hood is a hemispherical structure, and an air inlet connected to the air inlet pipe is provided in the middle of the wind hood; the controller is respectively connected to the plurality of pressure sensors and the driving mechanism for communication. The detection method for measuring roof wind pressure provided by the present invention is realized by the above-mentioned sensor device for measuring roof wind pressure.

Description

Technical Field

[0001] The invention belongs to the technical field of wind pressure detection, and in particular relates to a sensor device for measuring roof wind pressure and a detection method. Background Art

[0002] When evaluating a building, the impact of wind pressure on the building is usually taken into account, which facilitates the assessment of the actual service life of the building. The wind pressure measurement data can also be recorded during the measurement. The previous recorded data can also be considered in the subsequent building design to ensure that the building has a long service life.

[0003] Traditionally, wind pressure measuring instruments are directly installed on the roof for measurement. The measuring head of the wind pressure measuring instrument is a thin tube with a small measuring surface. The measured value has errors, and the measuring head cannot be guaranteed to face the wind direction. Therefore, the measuring head needs to be rotated 360° during measurement, and the maximum value of the measurement is taken as the final wind pressure data. This measurement process is not only time-consuming, but also increases the labor intensity of the test personnel. Summary of the invention

[0004] The embodiment of the present invention provides a sensor device and a detection method for measuring roof wind pressure, aiming to solve the technical problems that numerical errors exist in the existing wind pressure measurement process, the measurement process takes a long time, and the labor intensity of test personnel is increased.

[0005] In a first aspect, an embodiment of the present invention provides a sensor device for measuring roof wind pressure, comprising:

[0006] Wind pressure measuring instrument with air inlet duct;

[0007] A base, wherein a receiving cavity is provided at the bottom, and a detection rod extending upward is provided at the top of the base, wherein a through hole connecting the receiving cavity and the outside is provided in the detection rod;

[0008] A wind direction measuring assembly comprises a plurality of detection blades connected to the outer periphery of the detection rod, and a pressure sensor is provided on the force-bearing surface of each detection blade;

[0009] A driving mechanism, fixedly connected to the base and located in the accommodating cavity, wherein the driving mechanism has a rotating shaft rotatably matched with the through hole, and the rotating shaft extends out of the detection rod;

[0010] The wind shield is a hemispherical structure, and an air inlet connected to the air inlet pipe is provided in the middle of the wind shield, and the air inlet pipe is located on the back side of the concave side of the wind shield;

[0011] A controller is integrated in the wind pressure measuring instrument, and the controller is communicatively connected with the plurality of pressure sensors and the driving mechanism respectively.

[0012] Compared with the prior art, the solution shown in the embodiment of the present application is that when in use, the base is installed at a preset position on the roof, and the pressure in different directions is measured by multiple pressure sensors, so that it can be identified that the pressure sensor with the largest pressure value is facing the wind, thereby obtaining wind direction information. After the controller receives the pressure values ​​of each of the multiple pressure sensors, the drive mechanism is started to drive the wind hood to rotate the corresponding angle, so that the wind hood faces the wind. The wind is aggregated by the wind hood, passes through the air inlet, and enters the wind pressure measuring instrument through the air inlet pipe. The wind pressure measuring instrument displays the current wind pressure value. After measuring a wind pressure value, the position of the base is changed on the roof, and the above process is repeated to measure multiple wind pressure values. The sensor device for measuring roof wind pressure of the present invention can increase the wind receiving area and improve the measurement accuracy of wind pressure values ​​by setting a wind hood; by setting a wind direction measurement component, the wind direction affecting the building can be obtained, and the orientation of the wind hood is adjusted according to the measured wind direction to obtain the current wind direction, thereby achieving the effect of improving the measurement accuracy of wind pressure values; by communicating with multiple pressure sensors through a controller, it is convenient to judge the rotation angle of the driving wind hood according to the measurement values ​​and positions of the pressure sensors, which is convenient for adjustment and use, and reduces the labor intensity of test personnel.

[0013] In combination with the first aspect, in a possible implementation manner, the detecting blade includes:

[0014] The fixed frame is a square frame structure;

[0015] A mounting plate is suspended at the center of the fixing frame, a plate surface of the mounting plate is parallel to the axial direction of the detection rod, and the number of outer corners of the mounting plate is the same as the number of inner corners of the fixing frame;

[0016] A plurality of elastic members, each of which is connected between an outer corner of the mounting plate and an inner corner of the fixing frame, and the number of the elastic members is the same as the number of the inner corners of the fixing frame;

[0017] Wherein, the pressure sensor is installed on the mounting plate.

[0018] In combination with the first aspect, in a possible implementation manner, hooks are fixedly connected to the inner corner of the fixing frame and the outer corner of the mounting plate, and both ends of the elastic member are respectively connected to the hooks;

[0019] The elastic member is an elastic rope or a spring.

[0020] In combination with the first aspect, in a possible implementation, a baffle ring is provided in the base, the baffle ring divides the accommodating cavity into a first cavity and a second cavity that are independent of each other, the driving mechanism is in the first cavity, and the second cavity is filled with a plurality of counterweight blocks;

[0021] The sensor device for measuring roof wind pressure also includes a mounting base, and the mounting base includes:

[0022] A first seat body connected to the bottom or side wall of the base;

[0023] A magnetic block, embedded in the first seat body, used for connecting with the plurality of counterweight blocks by magnetic attraction;

[0024] A chassis is integrally formed on the outer periphery of the bottom of the mounting seat, the bottom surface of the chassis is flush with the bottom surface of the mounting seat, and a plurality of mounting through holes are provided on the chassis;

[0025] A plurality of connecting members correspond one to one with the plurality of the installation through holes, and the connecting members are used to penetrate the installation through holes and connect with the roof.

[0026] In combination with the first aspect, in a possible implementation manner, the connecting member includes:

[0027] An anchor bolt, passing through the through hole and connected to the roof;

[0028] A first nut, screwed to the anchor bolt, the first nut being used to abut against the roof;

[0029] A second nut, screwed to the anchor bolt, the second nut abutting against a side surface of the chassis away from the base;

[0030] The third nut is screwed to the anchor bolt, and the third nut abuts against a side surface of the chassis close to the base.

[0031] In combination with the first aspect, in a possible implementation manner, the connecting member includes:

[0032] A first rod body, having a slide groove coaxial with the first rod body provided therein, wherein an opening of the slide groove is located at a first axial end of the first rod body;

[0033] A second rod body, slidably matched with the slide groove;

[0034] The vacuum suction cup is fixedly connected to the second axial end of the first rod body, and the second axial end is an opposite end of the first axial end.

[0035] In combination with the first aspect, in a possible implementation, the top surface of the first seat body is recessed to form multiple circles of coaxial annular grooves, and the multiple annular grooves are distributed in sequence from the inside to the outside. Each of the annular grooves is provided with multiple baffles, and the plate surface of the baffle is parallel to the radial direction of the annular groove, and the magnetic suction block is located between two adjacent baffles.

[0036] In combination with the first aspect, in a possible implementation manner, the wind shield includes:

[0037] A reinforcing plate, fixedly connected to the top end of the rotating shaft, wherein the reinforcing plate is a circular plate, and the plate surface is parallel to the axial direction of the rotating shaft;

[0038] The cover body is a hemispherical transparent plastic shell, and the cover body is fixedly connected to the reinforcing plate;

[0039] A plurality of reinforcing rods, each of which is connected between the back of the cover and the reinforcing plate;

[0040] Wherein, the air inlet passes through the cover body and the reinforcement plate in sequence.

[0041] In combination with the first aspect, in a possible implementation manner, a plurality of handles are provided on the outer periphery of the cover body, and the plurality of handles are evenly distributed around the axial direction of the cover body.

[0042] In a second aspect, an embodiment of the present invention further provides a detection method for measuring roof wind pressure, which is implemented by the sensor device for measuring roof wind pressure, and includes the following steps:

[0043] S10: Name the multiple pressure sensors N1, N2, ..., Nn, respectively, wherein the angle corresponding to the pressure sensor N1 is 0°, the angle corresponding to the pressure sensor N2 is 360 / n°, ..., the angle corresponding to the pressure sensor Nn is (360 / n)*(n-1)°, the wind shield is in an initial position, and the air inlet is in the same direction as the pressure sensor N1;

[0044] S20: The pressure sensor in the controller reads the readings of the pressure sensors. The pressure sensor with the largest pressure value corresponds to Nx, and the angle corresponding to the pressure sensor is (360 / n)*(x-1)°.

[0045] S30: The controller starts the driving mechanism, and the driving mechanism drives the wind hood to rotate (360 / n)*(x-1)°. At this time, the value measured by the wind pressure and air volume meter is the wind pressure value of the roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of a partial cross-section structure of a sensor device for measuring roof wind pressure provided in Embodiment 1 of the present invention (from a main viewing angle);

[0047] Figure 2 A schematic diagram of the top view of the structure of a sensor device for measuring roof wind pressure provided in the first embodiment of the present invention;

[0048] Figure 3 The base edge used in the first embodiment of the present invention Figure 1 Schematic diagram of the cross-sectional structure along the AA line;

[0049] Figure 4This is a schematic diagram of the top view of the mounting base used in the first embodiment of the present invention;

[0050] Figure 5 Schematic diagram of the cross-sectional structure of the mounting base used in the second embodiment of the present invention (with Figure 1 same viewing angle).

[0051] Description of reference numerals:

[0052] 10-wind pressure measuring instrument; 11-air inlet pipe; 12-controller;

[0053] 20-base; 21-first cavity; 22-detection rod; 23-blocking ring; 24-weight block; 25-second cavity;

[0054] 30-detection blade; 31-pressure sensor; 32-fixed frame; 33-mounting plate; 34-elastic member; 35-hook;

[0055] 40-driving mechanism; 41-rotating shaft;

[0056] 50-wind hood; 51-reinforcement plate; 52-hood body; 53-reinforcement rod; 54-handle; 55-air inlet;

[0057] 60-mounting seat; 61-first seat body; 62-magnetic block; 63-chassis; 64-annular groove; 65-baffle;

[0058] 70-connecting piece; 71-anchor bolt; 72-first nut; 73-second nut; 74-third nut; 75-first rod; 76-second rod; 77-vacuum suction cup. DETAILED DESCRIPTION

[0059] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0060] In the embodiments of the present application, the term "roof" refers to the surface of a building to be measured, usually the roof of a building.

[0061] Please also read Figures 1 to 5The sensor device for measuring roof wind pressure provided by the present invention is now described. The sensor device for measuring roof wind pressure includes a wind pressure measuring instrument 10, a base 20, a wind direction measuring component, a driving mechanism 40, a wind cover 50 and a controller 12. The wind pressure measuring instrument 10 has an air inlet pipe 11; the base 20 has a receiving cavity at the bottom, and the top of the base 20 has a detection rod 22 extending upward, and the detection rod 22 has a through hole connecting the receiving cavity and the outside; the wind direction measuring component includes a plurality of detection blades 30 connected to the outer periphery of the detection rod 22, and each detection blade 30 has a force-bearing surface. There is a pressure sensor 31; the driving mechanism 40 is fixedly connected to the base 20 and is located in the accommodating cavity, the driving mechanism 40 has a rotating shaft 41 that rotates with the through hole, and the rotating shaft 41 extends out of the detection rod 22; the wind hood 50 is a hemispherical structure, and the middle part of the wind hood 50 is provided with an air inlet 55 that is connected to the air inlet pipe 11, and the air inlet pipe 11 is located on the back side of the recessed side of the wind hood 50; the controller 12 is integrated in the wind pressure measuring instrument 10, and the controller 12 is respectively communicated with multiple pressure sensors 31 and the driving mechanism 40.

[0062] Optionally, the driving mechanism 40 may be a motor, and the rotating shaft 41 may be directly fixed on the output shaft of the motor, or may be connected to the motor through gears, belts, etc.

[0063] Compared with the prior art, the sensor device for measuring roof wind pressure provided in the present embodiment has a base 20 installed at a preset position on the roof during use, and pressures in different directions are measured by multiple pressure sensors 31, so that the pressure sensor 31 with the largest pressure value can be identified as facing the wind, thereby obtaining wind direction information. After the controller 12 receives the pressure values ​​of each of the multiple pressure sensors 31, the drive mechanism 40 is started to drive the wind hood 50 to rotate to a corresponding angle, so that the wind hood 50 faces the wind. The wind passes through the aggregation of the wind hood 50, passes through the air inlet 55, and enters the wind pressure measuring instrument 10 through the air inlet pipe 11. The wind pressure measuring instrument 10 displays the current wind pressure value. After measuring a wind pressure value, the position of the base 20 is changed on the roof, and the above process is repeated to measure multiple wind pressure values. The sensor device for measuring roof wind pressure of the present invention can increase the wind receiving area and improve the measurement accuracy of wind pressure values ​​by setting up a wind hood 50; by setting up a wind direction measurement component, the wind direction affecting the building can be obtained, and the orientation of the wind hood 50 is adjusted according to the measured wind direction, so as to obtain the current wind direction, and also achieve the effect of improving the measurement accuracy of wind pressure values; through the controller 12, it is communicated with multiple pressure sensors 31, so that it is convenient to judge the rotation angle of the driving wind hood 50 according to the measurement value and position of the pressure sensor 31, which is convenient for adjustment and use, and reduces the labor intensity of the test personnel.

[0064] In some embodiments, a specific implementation of the above-mentioned detection blade 30 can be as follows Figure 1 See the structure shown. Figure 1 , the detection blade 30 includes a fixed frame 32, a mounting plate 33 and a plurality of elastic members 34, the fixed frame 32 is a square frame structure; the mounting plate 33 is suspended at the center of the fixed frame 32, the plate surface of the mounting plate 33 is parallel to the axial direction of the detection rod 22, and the number of outer corners of the mounting plate 33 is the same as the number of inner corners of the fixed frame 32; each elastic member 34 is connected between the outer corner of the mounting plate 33 and the inner corner of the fixed frame 32, and the number of elastic members 34 is the same as the number of inner corners of the fixed frame 32; wherein the pressure sensor 31 is mounted on the mounting plate 33. For example, if the fixed frame 32 is a rectangular frame, then there are 4 inner corners of the fixed frame 32, the corresponding cross section of the mounting plate 33 is also rectangular, and there are also 4 outer corners of the mounting plate 33, then the number of elastic members 34 is 4, one end of each elastic member 34 is connected to the outer corner of the mounting plate 33, and the other end is connected to the inner corner of the corresponding fixed frame 32, and there is no cross relationship between the multiple elastic members 34.

[0065] A ventilation structure is formed between the fixed frame 32 and the multiple elastic members 34 in the embodiment of the present application to prevent the detection blade 30 from being damaged when the wind resistance is too large, and the pressure sensor 31 is installed on the mounting plate 33 to detect an accurate pressure value. The mounting plate 33 has a small area and the resistance received will be reduced accordingly. Even if the wind is strong, the multiple elastic members 34 can adapt to the wind resistance through elastic deformation, thereby extending the service life.

[0066] In some embodiments, a specific implementation of the elastic member 34 may be as follows: Figure 1 See the structure shown. Figure 1 The inner corner of the fixed frame 32 and the outer corner of the mounting plate 33 are fixed with hooks 35, and the two ends of the elastic member 34 are connected to the hooks 35 respectively; the elastic member 34 is an elastic rope or a spring. The two ends of the elastic member 34 are also provided with corresponding hanging rings, and then the hanging rings can be directly hung on the hooks 35 when the elastic member 34 is installed. After the elastic member 34 is installed, it is in a slightly stretched state to avoid falling out of the hook 35. This structure is easy to install and also convenient for the elastic member 34 to be more slippery. Compared with replacing the entire detection blade 30, replacing only the elastic member 34 reduces the maintenance cost accordingly.

[0067] Specifically, the connection method between the mounting plate 33 and the pressure sensor 31 can adopt the structure described below: a card slot can be set on the mounting plate 33, and the pressure sensor 31 is directly snapped into the card slot; or the pressure sensor 31 is directly pasted on the mounting plate 33; or the pressure sensor 31 is fixed by setting an ear plate on the outer periphery of the pressure sensor 31, and screws pass through the ear plate and screw it to the mounting plate 33.

[0068] In some embodiments, an improved implementation of the sensor device for measuring roof wind pressure can be as follows: Figure 1 and Figure 3 See the structure shown. Figure 1 and Figure 3 A baffle ring 23 is provided in the base 20, and the baffle ring 23 divides the accommodating cavity into a first cavity 21 and a second cavity 25 which are independent of each other. The driving mechanism 40 is in the first cavity 21, and the second cavity 25 is filled with a plurality of counterweights 24; the sensor device for measuring roof wind pressure also includes a mounting seat 60, and the mounting seat 60 includes a first seat body 61, a magnetic block 62, a chassis 63 and a plurality of connecting members 70, the first seat body 61 is connected to the bottom or side wall of the base 20; the magnetic block 62 is embedded in the first seat body 61, and is used to be connected to the plurality of counterweights 24 by magnetic attraction; the chassis 63 is integrally formed on the bottom periphery of the mounting seat 60, the bottom surface of the chassis 63 is flush with the bottom surface of the mounting seat 60, and a plurality of mounting through holes are provided on the chassis 63; the plurality of connecting members 70 correspond one-to-one to the plurality of mounting through holes, and the connecting member 70 is used to penetrate the mounting through holes and connect to the roof.

[0069] A plurality of counterweight blocks 24 are arranged in the base 20, which can increase the deadweight of the base 20 and improve the stability during installation; the counterweight block 24 can be separated from the driving mechanism 40 by the isolation ring 23 to prevent the installed recovery counterweight block 24 from shaking and hitting the driving mechanism 40 and causing damage to the driving mechanism 40.

[0070] When the mounting seat 60 is set at the bottom of the base 20, corresponding to the multiple counterweights 24 on the base 20, the magnetic block 62 in the first seat body 61 can magnetically fix the counterweight 24 to the bottom of the second cavity 25 through the bottom wall of the base 20, which not only realizes the connection between the base 20 and the mounting seat 60, but also realizes the fixation of the counterweight 24; when the mounting seat 60 is loosened, it can also be magnetically fixed to the side wall of the base 20. At this time, the counterweight 24 in the second cavity 25 will be concentrated on the side facing the base 20, and magnetically cooperate with the magnetic block 62, so that the base 20 can be installed on the side of the building for use, with a wider range of applications.

[0071] In some embodiments, a specific implementation of the above-mentioned connecting member 70 can be as follows Figure 1 , Figure 2 and Figure 4 See the structure shown. Figure 1 , Figure 2 and Figure 4The connecting member 70 includes an anchor bolt 71, a first nut 72, a second nut 73 and a third nut 74. The anchor bolt 71 passes through the through hole and is connected to the roof. The first nut 72 is screwed to the anchor bolt 71 and is used to abut against the roof. The second nut 73 is screwed to the anchor bolt 71 and abuts against a side of the chassis 63 away from the base 20. The third nut 74 is screwed to the anchor bolt 71 and abuts against a side of the chassis 63 close to the base 20. When installed on the roof or top of a building, the anchor bolt 71 is installed more firmly, and the first nut 72 abuts against the roof to prevent the anchor bolt 71 from loosening. The second nut 73 and the third nut 74 are distributed on both sides of the chassis 63 to ensure the stability of the connection between the anchor bolt 71 and the mounting seat 60. By adjusting the third nut 74, the height of the base 20 can be adjusted, and then the height of the wind shield 50 can be adjusted.

[0072] In some embodiments, a modified embodiment of the connecting member 70 may be as follows: Figure 5 See the structure shown. Figure 5 The connecting member 70 includes a first rod 75, a second rod 76 and a vacuum suction cup 77. The first rod 75 is provided with a coaxial slide groove inside, and the opening of the slide groove is located at the first axial end of the first rod 75; the second rod 76 is slidably matched with the slide groove; the vacuum suction cup 77 is fixedly connected to the second axial end of the first rod 75, and the second axial end is the opposite end of the first axial end. By sliding the second rod 76, the distance between the base 20 and the roof can be adjusted, and when fixing the mounting seat 60, the air in the vacuum suction cup 77 can be sucked out, which is convenient for fixing and easier to operate.

[0073] It is easy to imagine that the side wall of the vacuum suction cup 77 needs to be provided with a port that can be connected to the air pump, and then when vacuum suction is needed, a suction pipe is connected between the air pump and the vacuum suction cup 77 to achieve vacuuming and complete the fixing operation.

[0074] In specific implementation, a plurality of first through holes can be provided on the first rod body 75 along its own axial direction, and a second through hole corresponding to the plurality of the first through holes can be provided on the second rod body 76, and the second rod body 76 can be fixed by a pin passing through the first through hole and plugging into the second through hole; the second rod body 76 and the first rod body 75 can also be screwed together, and a limiting step is provided in the through hole of the chassis 63, and the second rod body 76 rotates with the through hole, and the top end abuts against the limiting step, so that the second rod body 76 can adjust the length extending out of the first rod body 75 when rotating, and the top end of the second rod body 76 drives the chassis 63 to rise and fall, so as to adjust the distance from the roof.

[0075] In some embodiments, an improved embodiment of the mounting seat 60 can be adopted as follows Figure 1 , Figure 4 and Figure 5See the structure shown. Figure 1 , Figure 4 and Figure 5 The top surface of the first seat body 61 is concave to form a plurality of coaxial annular grooves 64, and the plurality of annular grooves 64 are sequentially distributed from the inside to the outside. A plurality of baffles 65 are arranged in each annular groove 64, and the plate surface of the baffle 65 is parallel to the radial direction of the annular groove 64, and the magnetic block 62 is located between two adjacent baffles 65. The position between the adjacent baffles 65 accommodates the magnetic block 62, which can prevent the magnetic block 62 from changing its position in the annular groove at will, and there are a plurality of annular grooves 64, so that when the mounting seat 60 is arranged at the bottom of the base 20, the magnetic block 62 can be concentrated in the annular groove 64 corresponding to the area of ​​the second cavity 25; when the mounting seat 60 is arranged on the side wall of the base 20, the magnetic block 62 can be concentrated in the middle annular groove 64, so as to meet a variety of installation methods.

[0076] Furthermore, the annular groove 64 opens upward, so when the position of the mounting seat 60 is changed, the position of the magnetic block 62 in different annular grooves 64 can be easily changed.

[0077] In some embodiments, a specific implementation of the wind shield 50 can be as follows: Figure 1 to Figure 2 See the structure shown. Figure 1 to Figure 2 The wind cover 50 includes a reinforcing plate 51, a cover body 52 and a plurality of reinforcing rods 53. The reinforcing plate 51 is fixedly connected to the top end of the rotating shaft 41. The reinforcing plate 51 is a circular plate, and the plate surface is parallel to the axial direction of the rotating shaft 41. The cover body 52 is a hemispherical transparent plastic shell, and the cover body 52 is fixedly connected to the reinforcing plate 51. Each reinforcing rod 53 is connected between the back of the cover body 52 and the reinforcing plate 51. Among them, the air inlet 55 passes through the cover body 52 and the reinforcing plate 51 in sequence.

[0078] Since the cover body 52 is a spherical transparent plastic shell, the contact area with the wind is increased. In order to avoid damage when measuring wind pressure, a reinforcing plate 51 and a reinforcing rod 53 are provided to improve the structural strength of the entire wind cover 50, thereby being able to withstand stronger winds and extend the service life.

[0079] In order to facilitate the replacement of the wind hood 50, the connection between the hood body 52 and the reinforcing plate 51 can be achieved through detachable bolts, nuts, etc., and the hood body 52 of different diameters can be replaced according to different situations.

[0080] Specifically, a plurality of handles 54 are provided on the outer periphery of the cover body 52, and the plurality of handles 54 are evenly distributed around the axial direction of the cover body 52. ​​When the cover body 52 is replaced or assembled and unassembled, the handles 54 can be used for convenient carrying and holding.

[0081] Based on the same inventive concept, the embodiment of the present application further provides a detection method for measuring roof wind pressure, which is implemented by the above-mentioned sensor device for measuring roof wind pressure, and includes the following steps:

[0082] S10: Name the multiple pressure sensors 31 as N1, N2, ..., Nn, respectively, wherein the angle corresponding to the pressure sensor 31N1 is 0°, the angle corresponding to the pressure sensor 31N2 is 360 / n°, ..., the angle corresponding to the pressure sensor 31Nn is (360 / n)*(n-1)°, the wind shield 50 is in the initial position, and the air inlet 55 is in the same direction as the pressure sensor 31N1;

[0083] S20: The reading of the pressure sensor 31 in the controller 12 is measured. The pressure sensor 31 corresponding to the maximum pressure value is Nx, and the angle corresponding to the pressure sensor 31 is (360 / n)*(x-1)°;

[0084] S30: The controller 12 starts the driving mechanism 40, and the driving mechanism 40 drives the wind hood 50 to rotate (360 / n)*(x-1)°. At this time, the value measured by the wind pressure and air volume meter is the wind pressure value of the roof.

[0085] It should be noted that when the readings of more than two pressure sensors 31 are the same, the controller 12 starts the driving motor to drive the wind hood 50 to rotate, and adjusts the wind hood 50 according to the angles corresponding to the pressure sensors 31 with the same readings. The wind hood 50 is measured at the angles corresponding to the multiple pressure sensors 31 with the same readings. After the measurement is completed, the average of the multiple wind pressure values ​​is taken as the final measurement data.

[0086] Compared with the prior art, the detection method for measuring roof wind pressure of the present invention can increase the wind receiving area and improve the measurement accuracy of wind pressure values ​​by setting up a wind hood 50; by setting up a wind direction measurement component, the wind direction affecting the building can be obtained, and the orientation of the wind hood 50 is adjusted according to the measured wind direction, so as to obtain the current wind direction, and the effect of improving the measurement accuracy of wind pressure values ​​is achieved; through the controller 12, it is communicated with multiple pressure sensors 31, so that it is convenient to judge the rotation angle of the driving wind hood 50 according to the measurement value and position of the pressure sensor 31, which is convenient for adjustment and use, and reduces the labor intensity of the test personnel.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sensor device for measuring roof wind pressure, characterized in that: include: Wind pressure measuring instrument with air inlet duct; A base, wherein a receiving cavity is provided at the bottom, and a detection rod extending upward is provided at the top of the base, wherein a through hole connecting the receiving cavity and the outside is provided in the detection rod; A wind direction measuring assembly comprises a plurality of detection blades connected to the outer periphery of the detection rod, and a pressure sensor is provided on the force-bearing surface of each detection blade; A driving mechanism, fixedly connected to the base and located in the accommodating cavity, wherein the driving mechanism has a rotating shaft rotatably matched with the through hole, and the rotating shaft extends out of the detection rod; The wind shield is a hemispherical structure, and an air inlet connected to the air inlet pipe is provided in the middle of the wind shield, and the air inlet pipe is located on the back side of the concave side of the wind shield; A controller, integrated in the wind pressure measuring instrument, wherein the controller is communicatively connected with the plurality of pressure sensors and the driving mechanism respectively; The wind shield comprises: A reinforcing plate, fixedly connected to the top end of the rotating shaft, wherein the reinforcing plate is a circular plate, and the plate surface is parallel to the axial direction of the rotating shaft; The cover body is a hemispherical transparent plastic shell, and the cover body is fixedly connected to the reinforcing plate; A plurality of reinforcing rods, each of which is connected between the back of the cover and the reinforcing plate; Wherein, the air inlet passes through the cover body and the reinforcement plate in sequence.

2. The sensor device for measuring roof wind pressure according to claim 1, characterized in that: The detection blade comprises: The fixed frame is a square frame structure; A mounting plate is suspended at the center of the fixing frame, a plate surface of the mounting plate is parallel to the axial direction of the detection rod, and the number of outer corners of the mounting plate is the same as the number of inner corners of the fixing frame; A plurality of elastic members, each of which is connected between an outer corner of the mounting plate and an inner corner of the fixing frame, and the number of the elastic members is the same as the number of the inner corners of the fixing frame; Wherein, the pressure sensor is installed on the mounting plate.

3. The sensor device for measuring roof wind pressure according to claim 2, characterized in that: The inner corner of the fixing frame and the outer corner of the mounting plate are both fixedly connected with hooks, and both ends of the elastic member are respectively connected to the hooks; The elastic member is an elastic rope or a spring.

4. The sensor device for measuring roof wind pressure according to claim 1, characterized in that: A baffle ring is provided in the base, and the baffle ring divides the accommodating cavity into a first cavity and a second cavity which are independent of each other. The driving mechanism is located in the first cavity, and a plurality of counterweight blocks are filled in the second cavity. The sensor device for measuring roof wind pressure also includes a mounting base, and the mounting base includes: A first seat body connected to the bottom or side wall of the base; A magnetic block, embedded in the first seat body, used for connecting with the plurality of counterweight blocks by magnetic attraction; A chassis is integrally formed on the outer periphery of the bottom of the mounting seat, the bottom surface of the chassis is flush with the bottom surface of the mounting seat, and a plurality of mounting through holes are provided on the chassis; A plurality of connecting members correspond one to one with the plurality of the installation through holes, and the connecting members are used to penetrate the installation through holes and connect with the roof.

5. The sensor device for measuring roof wind pressure according to claim 4, characterized in that: The connecting piece comprises: An anchor bolt, passing through the through hole and connected to the roof; A first nut, screwed to the anchor bolt, the first nut being used to abut against the roof; A second nut, screwed to the anchor bolt, the second nut abutting against a side surface of the chassis away from the base; The third nut is screwed to the anchor bolt, and the third nut abuts against a side surface of the chassis close to the base.

6. The sensor device for measuring roof wind pressure according to claim 4, characterized in that: The connecting piece comprises: A first rod body, having a slide groove coaxial with the first rod body provided therein, wherein an opening of the slide groove is located at a first axial end of the first rod body; A second rod body, slidably matched with the slide groove; The vacuum suction cup is fixedly connected to the second axial end of the first rod body, and the second axial end is an opposite end of the first axial end.

7. The sensor device for measuring roof wind pressure according to claim 4, characterized in that: The top surface of the first seat body is recessed to form multiple circles of coaxial annular grooves, and the multiple annular grooves are distributed in sequence from the inside to the outside. Each of the annular grooves is provided with multiple baffles, and the plate surface of the baffle is parallel to the radial direction of the annular groove. The magnetic attraction block is located between two adjacent baffles.

8. The sensor device for measuring roof wind pressure according to claim 1, characterized in that: A plurality of handles are arranged on the outer periphery of the cover body, and the plurality of handles are evenly distributed around the axial direction of the cover body.

9. A method for measuring roof wind pressure, characterized in that: The method is implemented by a sensor device for measuring roof wind pressure as claimed in any one of claims 1 to 8, comprising the following steps: S10: Name the multiple pressure sensors N1, N2, ..., Nn, respectively, wherein the angle corresponding to the pressure sensor N1 is 0°, the angle corresponding to the pressure sensor N2 is 360 / n°, ..., the angle corresponding to the pressure sensor Nn is (360 / n)*(n-1)°, the wind shield is in an initial position, and the air inlet is in the same direction as the pressure sensor N1; S20: The pressure sensor in the controller reads the readings of the pressure sensors. The pressure sensor with the largest pressure value corresponds to Nx, and the angle corresponding to the pressure sensor is (360 / n)*(x-1)°. S30: The controller starts the driving mechanism, and the driving mechanism drives the wind hood to rotate (360 / n)*(x-1)°. At this time, the value measured by the wind pressure and air volume meter is the wind pressure value of the roof.

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