Assembly system and method for reflective ultrasonic reflective surface

Abstract

The present invention provides an assembly system and method for a reflective ultrasonic reflective surface. The assembly system includes: a supporting and fixing device, which is used to support and fix a probe mounting plate of an ultrasonic anemometer; a control device, which obtains the reflected wave information of the probe on the probe mounting plate, determines whether the reflecting surface of the ultrasonic anemometer is an ideal reflecting surface based on the reflected wave information, and generates an adjustment signal when the reflecting surface of the ultrasonic anemometer is not an ideal reflecting surface; an adjustment device, which adjusts the parallelism and distance of the reflecting surface relative to the probe mounting plate based on the adjustment signal output by the control device, so that the reflecting surface meets the parallelism and distance requirements relative to the probe mounting plate. The present invention can clamp and fix the probe mounting plate of the ultrasonic anemometer, and adjust the tightness of the mounting nut online to adjust the relative position of the mounting bolt and the probe mounting plate, ensure the parallelism and installation spacing between the reflecting surface and the probe mounting surface, and achieve the purpose of improving the accuracy and measurement range of the anemometer sensor.

Description

Technical Field

[0001] The present invention relates to the field of sensors, in particular to the technical field of ultrasonic wind measurement sensors. Background Art

[0002] Ultrasonic sensors are sensors that convert ultrasonic signals into other energy signals (usually electrical signals). Ultrasonic waves are mechanical waves with a vibration frequency higher than 20kHz. They have the characteristics of high frequency, short wavelength, small diffraction phenomenon, especially good directionality, and the ability to propagate in a directional manner as rays. Ultrasonic waves have a great ability to penetrate liquids and solids, especially in solids that are opaque to sunlight. When ultrasonic waves encounter impurities or interfaces, they will produce significant reflections to form reflected echoes, and when they encounter moving objects, they can produce the Doppler effect. Ultrasonic sensors are widely used in industry, national defense, biomedicine, etc.

[0003] The reflective ultrasonic sensor is a sensor that measures based on the ultrasonic reflection method. The ultrasonic reflection method is a method in which the measured object (such as industrial materials, humans) transmits ultrasound, and then uses its reflection, Doppler effect, transmission, etc. to obtain information about the measurement object and process it to form an image. When assembling a reflective ultrasonic sensor, the ultrasonic reflection surface directly affects the flying distance of the ultrasonic wave in the air, affects the degree of signal attenuation caused by the installation angle, and thus affects the data accuracy and measurement range of the sensor. Therefore, it is necessary to ensure that the reflective surface is installed without offset to ensure accuracy. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a reflective ultrasonic reflective surface assembly system and method, which are used to solve the technical problem in the prior art that the ultrasonic reflective surface cannot effectively prevent the reflective surface from shifting during assembly.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides an assembly system for a reflective ultrasonic reflecting surface, comprising: a supporting and fixing device, used to support and fix a probe mounting plate of an ultrasonic anemometer; a control device, used to obtain reflected wave information of a probe on the probe mounting plate, determine whether the reflecting surface of the ultrasonic anemometer is an ideal reflecting surface based on the reflected wave information, and generate an adjustment signal when the reflecting surface of the ultrasonic anemometer is not an ideal reflecting surface; an adjustment device, placed above the reflecting surface of the ultrasonic anemometer, and adjusted the parallelism and distance of the reflecting surface relative to the probe mounting plate based on the adjustment signal output by the control device, so that the reflecting surface meets the parallelism and distance requirements relative to the probe mounting plate.

[0006] In one embodiment of the present invention, a plurality of pillars are provided on the probe mounting plate; the reflecting surface is connected and fixed to each of the pillars by means of bolts with nuts; wherein spring washers are respectively installed between the reflecting surface and each of the pillars.

[0007] In one embodiment of the present invention, the supporting and fixing device includes: a fixing frame, including at least a left fixed side wall, a right fixed side wall and an upper fixed side wall; a supporting structure, arranged at the bottom of the ultrasonic anemometer, for supporting the ultrasonic anemometer; a clamping structure, including a left clamping plate and a right clamping plate, respectively located on both sides of the ultrasonic anemometer, for clamping the probe mounting plate of the ultrasonic anemometer from the left and right sides; a driving structure, including a left driving structure and a right driving structure, respectively connected to the left clamping plate and the right clamping plate, respectively driving the left clamping plate and the right clamping plate to clamp or detach the probe mounting plate of the ultrasonic anemometer.

[0008] In one embodiment of the present invention, the supporting structure includes a support plate disposed at the bottom of the ultrasonic anemometer and a support plate spring disposed under the support plate to support the support plate.

[0009] In one embodiment of the present invention, the left driving mechanism includes: at least one left clamping arm, obliquely connected between the left fixed side wall and the left clamping plate; a left electromagnet, fixed to the left side of the supporting structure; a left suction cup, placed above the left electromagnet and connected to the left clamping arm, and driving the left clamping plate to move downward after being adsorbed by the left electromagnet, and applying a rightward thrust to the left clamping plate by the left clamping arm when the left clamping plate moves downward, thereby clamping the left side of the probe mounting plate; the right driving mechanism includes: at least one right clamping arm, obliquely connected between the right fixed side wall and the right clamping plate; a right electromagnet, fixed to the right side of the supporting structure; a right suction cup, placed above the right electromagnet and connected to the right clamping arm, and driving the right clamping plate to move downward after being adsorbed by the right electromagnet, and applying a rightward thrust to the right clamping plate by the right clamping arm when the right clamping plate moves downward, thereby clamping the right side of the probe mounting plate.

[0010] In one embodiment of the present invention, the supporting and fixing device also includes: a linkage shaft, a left end of which is connected between the left suction cup and the left clamping plate, and a right end of which is connected between the left suction cup and the left clamping plate; a left connecting structure, connecting and fixing the left end of the linkage shaft to the left fixed side wall; and a right connecting structure, connecting and fixing the right end of the linkage shaft to the right fixed side wall.

[0011] In one embodiment of the present invention, the adjustment device includes: a plurality of drive motors fixed on the upper fixed side wall, and the motor shafts of the drive motors are respectively aligned with the pillars below; a sleeve is installed at the lower end of the motor shaft of the drive motor for matching with the nut to drive the nut to rotate; the motor shaft of the drive motor is also equipped with a spring located above the sleeve to control the movement of the sleeve along the motor shaft.

[0012] In one embodiment of the present invention, the control device includes: a waveform reading module, which is used to continuously receive the reflected wave information of the probe on the probe mounting plate during the rotation of the nut, and record the reflected wave amplitude through the received reflected wave information; a search module, which searches for the maximum reflected wave amplitude from the recorded reflected wave amplitudes, and obtains the nut position corresponding to the maximum reflected wave amplitude; a position adjustment module, which controls the adjustment device to adjust the current position of the nut to the nut position corresponding to the maximum reflected wave amplitude based on the obtained nut position corresponding to the maximum reflected wave amplitude; an assembly control module, which determines the flight time based on the target flight distance and current temperature of the ultrasonic anemometer when the current position of the nut is the nut position corresponding to the maximum reflected wave amplitude, and outputs an adjustment signal based on the flight time, so that the adjustment device can control the rotation direction of the nut.

[0013] To achieve the above-mentioned purpose and other related purposes, the present invention provides an assembly method for a reflective ultrasonic reflecting surface, which is applied to the assembly system of the reflective ultrasonic reflecting surface as described above, and the method includes: during the rotation process of the nut of the bolt connecting the reflecting surface and the probe mounting plate, continuously receiving the reflected wave information of the probe on the probe mounting plate, and recording the reflected wave amplitude through the received reflected wave information; searching for the maximum amplitude of the reflected wave from the recorded reflected wave amplitudes, and obtaining the nut position corresponding to the maximum amplitude of the reflected wave; based on the obtained nut position corresponding to the maximum amplitude of the reflected wave, controlling the adjustment device to adjust the current position of the nut to the nut position corresponding to the maximum amplitude of the reflected wave; when the current position of the nut is the nut position corresponding to the maximum amplitude of the reflected wave, determining the flight time based on the target flight distance and current temperature of the ultrasonic anemometer, and outputting an adjustment signal based on the flight time so that the adjustment device can control the rotation direction of the nut.

[0014] In one embodiment of the present invention, the outputting of the adjustment signal based on the fitting time includes: when the fitting time is greater than the target fitting time, outputting an adjustment signal to rotate the control nut in the tightening direction; when the fitting time is less than the target fitting time, outputting an adjustment signal to rotate the control nut in the loosening direction; when the fitting time is equal to the target fitting time, outputting an adjustment signal to complete assembly.

[0015] As described above, the assembly system and method of the reflective ultrasonic reflective surface of the present invention have the following beneficial effects:

[0016] The present invention can clamp and fix the probe mounting plate of the ultrasonic anemometer, and can adjust the tightness of the mounting nut online through a motor to adjust the relative position of the mounting bolt and the probe mounting plate, thereby ensuring the parallelism and mounting spacing between the reflection surface and the probe mounting surface, thereby achieving the purpose of improving the accuracy and measurement range of the anemometer sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The schematic structure diagram of the assembly system of the reflective ultrasonic reflective surface in one embodiment of the present invention is shown.

[0018] Figure 2 The specific structural schematic diagram of the assembly system of the reflective ultrasonic reflective surface in one embodiment of the present invention is shown.

[0019] Figure 3 A schematic diagram showing a large horizontal offset of a reflective surface in an assembly system of a reflective ultrasonic reflective surface according to an embodiment of the present invention is shown.

[0020] Figure 4 A schematic diagram showing a small distance of horizontal deviation of a reflective surface in an assembly system of a reflective ultrasonic reflective surface according to an embodiment of the present invention is shown.

[0021] Figure 5 A schematic diagram showing a reflection surface and a probe mounting plate in an assembly system of a reflection type ultrasonic reflection surface according to an embodiment of the present invention are not parallel.

[0022] Figure 6 A schematic diagram showing the relationship between ultrasonic angle and signal attenuation in an assembly system of a reflective ultrasonic reflective surface according to an embodiment of the present invention is shown.

[0023] Figure 7 A principle block diagram of a control device in an assembly system of a reflective ultrasonic reflective surface according to an embodiment of the present invention is shown.

[0024] Figure 8 A schematic diagram showing a control process of a control device in an assembly system of a reflective ultrasonic reflective surface according to an embodiment of the present invention is shown.

[0025] Fig. 9 A flow chart of an assembly method of a reflective ultrasonic reflective surface in an embodiment of the present invention is shown.

[0026] Component number description

[0027] 100 Assembly system for reflective ultrasonic reflective surface

[0028] 110 Support fixture

[0029] 101 Upper fixed side wall

[0030] 102 Left fixed side wall

[0031] 103 Right fixed side wall

[0032] 104 Pallet

[0033] 105 support plate spring

[0034] 106 Left splint

[0035] 107 Right splint

[0036] 108 Left clamp arm

[0037] 109 Left electromagnet

[0038] 111 Left suction cup

[0039] 112 right clamp arm

[0040] 113 Right electromagnet

[0041] 114 Right suction cup

[0042] 115 linkage shaft

[0043] 116 Left Join Structure

[0044] 117 Right connection structure

[0045] 120 Adjustment device

[0046] 121 Drive Motor

[0047] 122 Motor shaft

[0048] 123 Sleeve

[0049] 124 Spring

[0050] 130 Control device

[0051] 200 Ultrasonic Anemometer

[0052] 201 Probe mounting plate

[0053] 202 Reflective surface

[0054] 203 Pillar

[0055] 204 Nut

[0056] 205 Spring Washer

[0057] 130 Control device

[0058] 131 Waveform reading module

[0059] 132 Search Module

[0060] 133 Position adjustment module

[0061] 134 Assembly Control Module

[0062] S100~S400 steps DETAILED DESCRIPTION

[0063] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0064] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0065] The present embodiment provides a reflective ultrasonic reflective surface assembly system and method, which are used to solve the technical problem in the prior art that the ultrasonic reflective surface cannot be effectively prevented from deflecting during assembly.

[0066] The assembly system of the reflective ultrasonic reflective surface of this embodiment includes structural parts and software. The structural parts can clamp and fix the probe mounting plate of the ultrasonic anemometer sensor. The software provides a set of software that can adjust the tightness of the mounting nut online through a motor to change the deformation degree of the spring gasket to adjust the relative position of the mounting bolt and the probe mounting plate to ensure the parallelism and installation spacing between the reflective surface and the ultrasonic probe mounting surface. The purpose of improving the accuracy and measurement range of the anemometer sensor can be achieved through the above assembly distribution and device.

[0067] The principles and implementation methods of the reflective ultrasonic reflective surface assembly system and method of this embodiment will be described in detail below so that those skilled in the art can understand the reflective ultrasonic reflective surface assembly system and method of the present invention without creative work.

[0068] Figure 1 FIG. 2 shows a block diagram of the principle structure of the assembly system of the reflective ultrasonic reflective surface in this embodiment. Figure 1 As shown, in this embodiment, the assembly system 100 of the reflective ultrasonic reflective surface is applied to the ultrasonic anemometer 200. When the ultrasonic anemometer 200 is assembled, the reflective surface 202 of the ultrasonic anemometer 200 is controlled so that the reflective surface 202 meets the parallelism and distance requirements relative to the probe mounting plate 201. Figure 1 As shown, the assembly system 100 of the reflective ultrasonic reflective surface includes: a supporting and fixing device 110 , an adjusting device 120 and a control device 130 .

[0069] In this embodiment, the probe mounting plate 201 of the ultrasonic anemometer 200 is clamped and fixed by the supporting and fixing device 110. The motor of the adjusting device 120 drives the screw sleeve to screw the nut 204 to adjust the parallelism and installation distance between the reflecting surface 202 and the probe mounting plate 201. Figure 2 The supporting and fixing device 110, the adjusting device 120 and the controlling device 130 of this embodiment are described in detail.

[0070] In this embodiment, the supporting and fixing device 110 is used to support and fix the probe mounting plate 201 of the ultrasonic anemometer 200 .

[0071] Specifically, in this embodiment, the supporting and fixing device 110 includes: a fixing frame, a clamping structure, a supporting structure and a driving structure.

[0072] In this embodiment, if Figure 2 As shown, the fixing frame at least includes a left fixing side wall 102 , a right fixing side wall 103 and an upper fixing side wall 101 .

[0073] In this embodiment, the support structure is disposed at the bottom of the ultrasonic anemometer 200 to support the ultrasonic anemometer 200.

[0074] Specifically, in this embodiment, if Figure 2 As shown, the support structure includes a support plate 104 disposed at the bottom of the ultrasonic anemometer 200 and a support plate spring 105 disposed under the support plate 104 to support the support plate 104 .

[0075] In this embodiment, if Figure 2 As shown, the clamping structure includes a left clamping plate 106 and a right clamping plate 107, which are respectively located on both sides of the ultrasonic anemometer 200, and are used to clamp the probe mounting plate 201 of the ultrasonic anemometer 200 from the left and right sides.

[0076] In this embodiment, the driving structure includes a left driving structure and a right driving structure, which are respectively connected to the left clamping plate 106 and the right clamping plate 107, and respectively drive the left clamping plate 106 and the right clamping plate 107 to clamp or detach the probe mounting plate 201 of the ultrasonic anemometer 200.

[0077] Specifically, in this embodiment, if Figure 2As shown, the left driving mechanism includes: at least one left clamping arm 108, obliquely connected between the left fixed side wall 102 and the left clamping plate 106; a left electromagnet 109, fixed to the left side of the supporting structure; a left suction cup 111, placed above the left electromagnet 109 and connected to the left clamping arm 108, which drives the left clamping plate 106 to move downward after being adsorbed by the left electromagnet 109. When the left clamping plate 106 moves downward, the left clamping arm 108 applies a rightward thrust to it, thereby clamping the left side of the probe mounting plate 201.

[0078] Specifically, in this embodiment, if Figure 2 As shown, the right driving mechanism includes: at least one right clamping arm 112, obliquely connected between the right fixed side wall 103 and the right clamping plate 107; a right electromagnet 113, fixed to the right side of the supporting structure; a right suction cup 114, placed above the right electromagnet 113 and connected to the right clamping arm 112, and after being adsorbed by the right electromagnet 113, it drives the right clamping plate 107 to move downward. When moving downward, the right clamping plate 107 is applied with a thrust toward ← by the right clamping arm 112, thereby clamping the right side of the probe mounting plate 201.

[0079] In this embodiment, if Figure 2 As shown, the supporting and fixing device 110 also includes a linkage shaft 115 , a left connecting structure 116 and a right connecting structure 117 .

[0080] The left end of the linkage shaft 115 is connected between the left suction cup 111 and the left clamping plate 106, and the right end is connected between the left suction cup 111 and the left clamping plate 106. The left connection structure 116 connects and fixes the left end of the linkage shaft 115 to the left fixed side wall 102; the right connection structure 117 connects and fixes the right end of the linkage shaft 115 to the right fixed side wall 103.

[0081] In this embodiment, the adjustment device 120 is placed above the reflecting surface 202 of the ultrasonic anemometer 200, and adjusts the parallelism and distance of the reflecting surface 202 relative to the probe mounting plate 201 based on the adjustment signal output by the control device 130, so that the reflecting surface 202 meets the parallelism and distance requirements relative to the probe mounting plate 201.

[0082] Among them, in this embodiment, if Figure 2 As shown, a plurality of pillars 203 are provided on the probe mounting plate 201; the reflecting surface 202 is connected and fixed to each of the pillars 203 by means of bolts with nuts 204; wherein spring washers 205 are respectively installed between the reflecting surface 202 and each of the pillars 203.

[0083] Specifically, in this embodiment, if Figure 2 As shown, the adjustment device 120 includes: a plurality of drive motors 121, which are fixed on the upper fixed side wall 101, and the motor shaft 122 of each drive motor 121 is aligned with each support 203 below; a sleeve 123 is installed at the lower end of the motor shaft 122 of the drive motor 121 for matching with the nut 204 to drive the nut 204 to rotate; a spring 124 is also installed on the motor shaft 122 of the drive motor 121 and is located above the sleeve 123 to control the movement of the sleeve 123 along the motor shaft 122.

[0084] In this embodiment, the control device 130 obtains the reflected wave information of the probe on the probe mounting plate 201, determines whether the reflecting surface 202 of the ultrasonic anemometer 200 is an ideal reflecting surface 202 based on the reflected wave information, and generates an adjustment signal when the reflecting surface 202 of the ultrasonic anemometer 200 is not an ideal reflecting surface 202.

[0085] Therefore, in this embodiment, the ultrasonic anemometer 200 is placed on the support plate 104, and the support plate spring 105 is installed at the bottom of the support plate 104 for support. The left electromagnet 109 and the right electromagnet 113 are energized, and the left suction cup 111 and the right suction cup 114 move downward respectively under the action of the magnetic field. The left clamp arm 108 and the right clamp arm 112 move inward to drive the left clamp plate 106 and the right clamp plate 107 to move toward the ultrasonic anemometer 200 in the middle, and then the left clamp plate 106 and the right clamp plate 107 clamp the probe mounting plate 201, and the position of the probe mounting plate 201 is fixed. Since the spring gasket 205 is placed between the reflecting surface 202 and the four pillars 203, the different rotation degrees of the nut 204 on the bolt will determine the compression degree of the spring gasket 205. The compression degrees of the four spring washers 205 are different, so the spacing and parallelism between the reflecting surface 202 and the probe mounting plate 201 can be adjusted. The rotation of the nut 204 is achieved by the motor shaft 122 driving the nut 204 to rotate on the sleeve 123. The four motors provide power to the four nuts 204 sleeves 123 respectively.

[0086] In this embodiment, the control device 130 outputs the probe signal of the ultrasonic anemometer 200 through a communication connection and sends it to the online assembled control software built into the control device 130. The control software obtains the reflected wave information of the probe (mainly the waveform amplitude and flight time) and adjusts the rotation degree of the four motors, thereby achieving the purpose of online dynamic adjustment and installation of the reflecting surface 202.

[0087] The following is an explanation of the principle of online dynamic adjustment and installation of the reflective surface 202 by the control device 130 described in this embodiment.

[0088] Generally, in order to increase the measuring range and improve the measuring accuracy, the reflecting surface 202 of the ultrasonic anemometer 200 is an elliptical surface with two relative probes as foci, and the sum of the distances from each point on the reflecting surface 202 to the probes is a fixed value.

[0089] When the reflective surface 202 is horizontally offset due to installation reasons, the transmitting waveform of the probe E will be extended to the new point S on the reflective surface 202, which is an ellipse with A and B as the new foci, connecting AS and BS; ST is the bisector of ∠ASB, that is, the normal line of point S. The mirror image SU of ES about ST is the reflection line of ES. SW and SU form an angle, which will cause the attenuation of the received signal. In addition, if the reflective surface 202 is an ideal reflective surface 202, the ultrasonic path is ER+RW, and due to the horizontal displacement of the reflective surface 202, the new path is ESW, ∠SRW is a right angle, and it is obvious that the path becomes longer.

[0090] Figure 3 The reflective surface 202 is translated by half of the OR distance, and the angle is offset by 2°. Such a large offset is not possible in actual installation. Figure 4 For a smaller displacement, the same analysis method is used. It can be seen that when the horizontal displacement distance of the reflecting surface 202 is small, the influence on the angle formation can be basically ignored, and the main influence is on the ultrasonic flying path.

[0091] A major factor affecting the receiving angle is that the reflective surface 202 is not installed horizontally with the probe installation surface. Figure 5 As shown in the figure, when the reflective surface 202 is installed to form a certain angle with the ideal optimal reflective surface 202, the new reflection point is point S, and the focus A and the reflection point S, the focus B and the reflection point S are connected respectively to form ∠ASB, and the angle bisector ST is made, and the mirror image ES is formed with ST as the symmetry axis to form SU. The angle between SU ​​and SW is the receiving angle of the receiving probe. In the figure, the installation offset angle is 15°, and the receiving angle is also 15°. Within an angle of 30°, the offset of the installation angle and the receiving angle are basically in a linear relationship of 1:1.

[0092] The ultrasonic probe is very directional, such as Figure 6 , when the receiving angle reaches 10°, the signal attenuation reaches -10db. In other words, the strength of the received signal is very sensitive to the receiving angle. Figure 5 It can be seen that when the installation angle is a positive angle, the reflection line SU is outside the reflection angle, and when the installation angle is a negative angle, the reflection line SU is inside the reflection angle. Only when the installation angle is 0°, the received signal strength is the maximum.

[0093] Since the installation angle affects the receiving angle, it causes signal attenuation. Severe attenuation makes it difficult to check the measured signal. When measuring at high wind speeds, the impact is particularly serious due to the increased curvature of the reflection point. Therefore, the installation angle directly affects the measurement range. Therefore, the reflective surface 202 must be installed horizontally to ensure the measurement range.

[0094] The horizontal offset of the reflective surface 202 will cause the ultrasonic flight path to change, which directly affects the calculation of the ultrasonic wind speed, thereby affecting the accuracy. Moreover, the flight path is still nonlinear under different wind speeds, which adds additional variables to the subsequent wind tunnel calibration. Therefore, it is necessary to ensure that the reflective surface 202 is installed without offset to ensure accuracy.

[0095] Specifically, in this embodiment, if Figure 7 As shown, the control device 130 includes: a waveform reading module 131 , a search module 132 , a position adjustment module 133 and an assembly control module 134 .

[0096] In this embodiment, the waveform reading module 131 is used to continuously receive the reflected wave information of the probe on the probe mounting plate 201 during the rotation of the nut 204, and record the reflected wave amplitude through the received reflected wave information.

[0097] In this embodiment, the search module 132 searches for the maximum reflected wave amplitude from the recorded reflected wave amplitudes, and obtains the position of the nut 204 corresponding to the maximum reflected wave amplitude.

[0098] In this embodiment, the position adjustment module 133 controls the adjustment device 120 to adjust the current position of the nut 204 to the nut 204 position corresponding to the maximum amplitude of the reflected wave based on the acquired position of the nut 204 corresponding to the maximum amplitude of the reflected wave.

[0099] In this embodiment, when the current position of the nut 204 is the position of the nut 204 corresponding to the maximum amplitude of the reflected wave, the assembly control module 134 determines the flight time based on the target flight distance and current temperature of the ultrasonic anemometer 200, and outputs an adjustment signal based on the flight time for the adjustment device 120 to control the rotation direction of the nut 204.

[0100] Among them, when the fitting time is greater than the target fitting time, an adjustment signal is output to rotate the control nut 204 in the tightening direction; when the fitting time is less than the target fitting time, an adjustment signal is output to rotate the control nut 204 in the loosening direction; when the fitting time is equal to the target fitting time, an adjustment signal of the end of assembly is output.

[0101] In this embodiment, the control device 130 controls the assembly of the reflective surface 202 in two steps: first, adjusting the level, and then adjusting the distance. Figure 8 A schematic diagram of the control process of the control device 130 in the assembly system 100 of the reflective ultrasonic reflective surface of this embodiment is shown.

[0102] The process of adjusting the level of the reflecting surface 202 is as follows: Specifically, Figure 8 As shown, the assembly adjustment begins. The nut 204 on the probe mounting plate 201 can be rotated to halfway first, and then it can be controlled to be tightened or loosened. During the rotation of the nut 204, the W point and the S point are adjusted throughout the whole process, and the amplitude record of the received waveform is read, that is, the reflected wave information of the probe on the probe mounting plate 201 is continuously received, and the reflected wave amplitude is recorded through the received reflected wave information. Then, the W point and the S point with the strongest amplitude are searched in the record, that is, the maximum amplitude of the reflected wave is searched from the recorded reflected wave amplitude, and the position of the nut 204 corresponding to the maximum amplitude of the reflected wave is obtained. The position of the nut 204 corresponding to the W point and the S point returns to the position with the strongest signal, that is, based on the obtained position of the nut 204 corresponding to the maximum amplitude of the reflected wave, the adjustment device 120 is controlled to adjust the current position of the nut 204 to the position of the nut 204 corresponding to the maximum amplitude of the reflected wave. The horizontal adjustment of the reflecting surface 202 is completed.

[0103] The process of adjusting the distance of the reflecting surface 202 is as follows: Since temperature has a certain influence on the transmission speed of ultrasound, the higher the temperature, the faster the ultrasound propagation speed. For example, the propagation speed of ultrasound in air at 15°C is 340m / s. In dry air at 0°C, the transmission speed of ultrasound is 331m / s, that is, the transmission speed of ultrasound will slow down as the temperature drops. In this embodiment, the air temperature is first read, and the transmission speed of ultrasound at the corresponding temperature is obtained according to the air temperature. Then, in this embodiment, the target flight distance (i.e., the distance between the reflection point S and the probe W) is obtained, and the flight time, i.e., the actual flight time, is calculated based on the transmission speed of ultrasound and the target flight distance. Then, the relationship between the actual fit time and the theoretical fit time, i.e., the target fit time, is determined. When the actual fit time is greater than the theoretical fit time, an adjustment signal is output to control each nut 204 to rotate synchronously in the tightening direction, i.e., the four pillars 203 are locked synchronously; when the actual fit time is less than the theoretical fit time, an adjustment signal is output to control each nut 204 to rotate synchronously in the loosening direction, i.e., the four pillars 203 are loosened synchronously; when the actual fit time is equal to the theoretical fit time, an adjustment signal for the end of assembly is output, and the assembly adjustment of the reflecting surface 202 is ended.

[0104] Therefore, the assembly system 100 of the reflective ultrasonic reflecting surface of the present embodiment can clamp and fix the probe mounting plate 201 of the ultrasonic anemometer 200, and the tightness of the mounting nut 204 can be adjusted online by a motor to adjust the relative position of the mounting bolt and the probe mounting plate 201, thereby ensuring the parallelism and installation spacing between the reflecting surface 202 and the probe mounting surface, thereby achieving the purpose of improving the accuracy and measurement range of the anemometer sensor.

[0105] It should be noted that the structure and principle of the assembly system 100 for implementing the reflective ultrasonic reflective surface of the present invention are not limited to Figures 1 to 8 As shown, all reasonable modifications made by those skilled in the art based on the concept of the present invention should be considered as within the protection scope of the present invention.

[0106] Example 2

[0107] like Fig. 9 As shown, this embodiment also provides an assembly method of a reflective ultrasonic reflective surface. Fig. 9 The flowchart of the assembly method of the reflective ultrasonic reflective surface in this embodiment is shown. The assembly method of the reflective ultrasonic reflective surface in this embodiment is applied to the assembly system of the reflective ultrasonic reflective surface described in Embodiment 1, and the method includes:

[0108] Step S100, during the rotation of the nut of the bolt connecting the reflective surface and the probe mounting plate, continuously receiving the reflected wave information of the probe on the probe mounting plate, and recording the reflected wave amplitude through the received reflected wave information;

[0109] Step S200, searching for the maximum amplitude of the reflected wave from the recorded amplitudes of the reflected wave, and obtaining the nut position corresponding to the maximum amplitude of the reflected wave;

[0110] Step S300, based on the acquired nut position corresponding to the maximum amplitude of the reflected wave, controlling the adjustment device to adjust the current position of the nut to the nut position corresponding to the maximum amplitude of the reflected wave;

[0111] Step S400, when the current position of the nut is the nut position corresponding to the maximum amplitude of the reflected wave, the flight time is determined based on the target flight distance of the ultrasonic anemometer and the current temperature, and an adjustment signal is output based on the flight time so that the adjustment device can control the rotation direction of the nut.

[0112] In this embodiment, the output adjustment signal based on the fit time includes: when the fit time is greater than the target fit time, output an adjustment signal to rotate the control nut in the tightening direction; when the fit time is less than the target fit time, output an adjustment signal to rotate the control nut in the loosening direction; when the fit time is equal to the target fit time, output an adjustment signal to complete assembly.

[0113] In this embodiment, the assembly of the control reflective surface can be divided into two steps: first adjusting the level, and then adjusting the distance. Figure 8 A schematic diagram showing the control process of the assembly method of the reflective ultrasonic reflective surface of this embodiment is shown.

[0114] The process of adjusting the level of the reflective surface is as follows: Specifically, Figure 8 As shown, at the beginning of the assembly adjustment, the nut on the probe mounting plate can be rotated halfway, and then control whether to tighten or loosen. During the rotation of the nut, adjust the W point and S point throughout the process, read the amplitude record of the received waveform, that is, continuously receive the reflected wave information of the probe on the probe mounting plate, and record the reflected wave amplitude through the received reflected wave information. Then search for the W point and S point with the strongest amplitude in the record, that is, search for the maximum amplitude of the reflected wave from the recorded reflected wave amplitude, and obtain the nut position corresponding to the maximum amplitude of the reflected wave. The nut position corresponding to the W point and the S point returns to the position with the strongest signal, that is, based on the obtained nut position corresponding to the maximum amplitude of the reflected wave, control the adjustment device to adjust the current position of the nut to the nut position corresponding to the maximum amplitude of the reflected wave. Complete the horizontal adjustment of the reflecting surface.

[0115] The process of adjusting the distance of the reflecting surface is as follows: Since temperature has a certain influence on the transmission speed of ultrasound, the higher the temperature, the faster the ultrasound propagation speed. For example, the propagation speed of ultrasound in air at 15°C is 340m / s. In dry air at 0°C, the transmission speed of ultrasound is 331 meters / second, that is, the transmission speed of ultrasound will slow down as the temperature drops. In this embodiment, the air temperature is first read, and the transmission speed of ultrasound at the corresponding temperature is obtained according to the air temperature. Then in this embodiment, the target flight distance (i.e., the distance between the reflection point S and the probe W) is obtained, and the flight time, i.e., the actual flight time, is calculated based on the transmission speed of ultrasound and the target flight distance. Then, the relationship between the actual fitting time and the theoretical fitting time, i.e., the target fitting time, is determined. When the actual fitting time is greater than the theoretical fitting time, an adjustment signal is output to control the synchronous rotation of each nut in the tightening direction, i.e., the four pillars are locked synchronously; when the actual fitting time is less than the theoretical fitting time, an adjustment signal is output to control the synchronous rotation of each nut in the loosening direction, i.e., the four pillars are loosened synchronously; when the actual fitting time is equal to the theoretical fitting time, an adjustment signal for the end of assembly is output, and the assembly adjustment of the reflective surface is ended.

[0116] Since the implementation principle of the assembly method of the reflective ultrasonic reflective surface in this embodiment is substantially the same as the principle of the assembly system 100 of the reflective ultrasonic reflective surface, the common technical contents between the principles will not be repeated.

[0117] In summary, the present invention can clamp and fix the probe mounting plate of the ultrasonic anemometer, and can adjust the tightness of the mounting nut online through a motor to adjust the relative position of the mounting bolt and the probe mounting plate, ensure the parallelism and installation spacing between the reflection surface and the probe mounting surface, and achieve the purpose of improving the accuracy and measurement range of the anemometer sensor. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0118] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An assembly system for a reflective ultrasonic reflective surface, characterized in that: include: A support and fixing device, used for supporting and fixing the probe mounting plate of the ultrasonic anemometer; a plurality of pillars are arranged on the probe mounting plate; the reflecting surface of the ultrasonic anemometer is connected and fixed to each of the pillars by bolts with nuts; wherein spring washers are respectively arranged between the reflecting surface and each of the pillars; the support and fixing device comprises: a fixing frame, comprising at least a left fixed side wall, a right fixed side wall and an upper fixed side wall; a supporting structure, arranged at the bottom of the ultrasonic anemometer, used for supporting the ultrasonic anemometer; a clamping structure, comprising a left clamping plate and a right clamping plate, respectively located on both sides of the ultrasonic anemometer, used for clamping the probe mounting plate of the ultrasonic anemometer from the left and right sides; a driving structure, comprising a left driving structure and a right driving structure, respectively connected to the left clamping plate and the right clamping plate, and respectively driving the left clamping plate and the right clamping plate to clamp or detach the probe mounting plate of the ultrasonic anemometer; a control device, which obtains reflected wave information of the probe on the probe mounting plate, determines whether the reflecting surface of the ultrasonic anemometer is an ideal reflecting surface based on the reflected wave information, and generates an adjustment signal when the reflecting surface of the ultrasonic anemometer is not an ideal reflecting surface; An adjustment device is placed above the reflection surface of the ultrasonic anemometer, and adjusts the parallelism and distance of the reflection surface relative to the probe mounting plate based on the adjustment signal output by the control device, so that the reflection surface meets the parallelism and distance requirements relative to the probe mounting plate; The adjustment device includes: a plurality of drive motors fixed on the upper fixed side wall, and the motor shafts of the drive motors are respectively aligned with the pillars below; a sleeve is installed at the lower end of the motor shaft of the drive motor for matching with the nut to drive the nut to rotate; a spring is also installed on the motor shaft of the drive motor and is located above the sleeve to control the movement of the sleeve along the motor shaft.

2. The assembly system of the reflective ultrasonic reflective surface according to claim 1, characterized in that: The supporting structure comprises a supporting plate arranged at the bottom of the ultrasonic anemometer and a supporting plate spring arranged under the supporting plate to support the supporting plate.

3. The assembly system of the reflective ultrasonic reflective surface according to claim 1, characterized in that: The left drive structure comprises: At least one left clamping arm, obliquely connected between the left fixed side wall and the left clamping plate; a left electromagnet, fixed to the left side of the supporting structure; A left suction cup is placed above the left electromagnet and connected to the left clamping arm. After being sucked by the left electromagnet, the left clamping plate is driven to move downward. When the left clamping plate moves downward, the left clamping arm applies a rightward thrust to the left clamping plate, thereby clamping the left side of the probe mounting plate. The right drive structure comprises: At least one right clamping arm, obliquely connected between the right fixed side wall and the right clamping plate; a right electromagnet, fixed to the right side of the supporting structure; The right suction cup is placed above the right electromagnet and connected to the right clamping arm. After being adsorbed by the right electromagnet, the right clamping plate is driven to move downward. When the right clamping plate moves downward, the right clamping arm applies a leftward thrust to clamp the right side of the probe mounting plate.

4. The assembly system of the reflective ultrasonic reflective surface according to claim 3, characterized in that: The supporting and fixing device also includes: A linkage shaft, the left end of which is connected between the left suction cup and the left clamping plate, and the right end of which is connected between the right suction cup and the right clamping plate; A left connecting structure, connecting and fixing the left end of the linkage shaft to the left fixed side wall; The right connecting structure connects and fixes the right end of the linkage shaft to the right fixed side wall.

5. The assembly system of the reflective ultrasonic reflective surface according to claim 1, characterized in that: The control device comprises: A waveform reading module, used for continuously receiving reflected wave information of the probe on the probe mounting plate during the rotation of the nut, and recording the reflected wave amplitude through the received reflected wave information; A search module searches for a maximum reflected wave amplitude from the recorded reflected wave amplitudes, and obtains a nut position corresponding to the maximum reflected wave amplitude; A position adjustment module, based on the acquired nut position corresponding to the maximum amplitude of the reflected wave, controls the adjustment device to adjust the current position of the nut to the nut position corresponding to the maximum amplitude of the reflected wave; An assembly control module is provided to determine the flight time based on the target flight distance and current temperature of the ultrasonic anemometer when the current position of the nut is the nut position corresponding to the maximum amplitude of the reflected wave, and to output an adjustment signal based on the flight time so that the adjustment device can control the rotation direction of the nut.

6. A method for assembling a reflective ultrasonic reflective surface, characterized in that: The method applied to the assembly system of the reflective ultrasonic reflective surface according to any one of claims 1 to 5 comprises: During the rotation of the nut of the bolt connecting the reflection surface and the probe mounting plate, the reflected wave information of the probe on the probe mounting plate is continuously received, and the reflected wave amplitude is recorded through the received reflected wave information; Finding the maximum amplitude of the reflected wave from the recorded reflected wave amplitudes, and obtaining the nut position corresponding to the maximum amplitude of the reflected wave; Based on the acquired nut position corresponding to the maximum amplitude of the reflected wave, the adjusting device is controlled to adjust the current position of the nut to the nut position corresponding to the maximum amplitude of the reflected wave; When the current position of the nut is the nut position corresponding to the maximum amplitude of the reflected wave, the flight time is determined based on the target flight distance and current temperature of the ultrasonic anemometer, and an adjustment signal is output based on the flight time for the adjustment device to control the rotation direction of the nut.

7. The method for assembling a reflective ultrasonic reflective surface according to claim 6, characterized in that: The outputting of the adjustment signal based on the flight time comprises: When the fit time is greater than the target fit time, an adjustment signal is output to control the nut to rotate in the tightening direction; When the flying time is less than the target flying time, an adjustment signal is output to control the nut to rotate in the loosening direction; When the fit time is equal to the target fit time, an adjustment signal indicating that assembly is completed is output.

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