Contact type wave height meter batch calibration device

Abstract

The invention relates to a contact type wave height meter batch calibration device, and belongs to the technical field of wave height meter calibration devices.The contact type wave height meter batch calibration device comprises a base, a water bucket, a first driving mechanism, a second driving mechanism, a lifting rod, a lifting disc and a plurality of buckles, the first driving mechanism is fixed to the base, and a moving part of the first driving mechanism reciprocates in the horizontal direction; the second driving mechanism is fixed to the moving part of the first driving mechanism, and the moving part of the second driving mechanism reciprocates in the height direction. The lifting disc is fixed on the moving part of the second driving mechanism through a lifting rod; and the plurality of buckles are respectively inserted into the plurality of insertion holes in the lifting disc. According to the invention, a plurality of to-be-calibrated contact type wave height meters are detachably clamped in a plurality of buckles respectively, then the moving part of the second driving mechanism is utilized to link the plurality of to-be-calibrated contact type wave height meters to rise and fall, and as the wave maker generates waves required by a test according to input wave elements, the wave making instrument can generate the waves required by the test according to actual wave parameters, and the test efficiency can be improved. And the measurement values of a plurality of contact type wave height meters at different heights are accurately calibrated in batches.

Description

Technical Field

[0001] The invention relates to the technical field of wave height meter calibration devices, in particular to a contact type wave height meter batch calibration device. Background Art

[0002] In the field of experimental research on hydraulic models of ports, coasts, and offshore projects, for most contact-type (such as capacitive) wave height meters, the wave height meter needs to be calibrated before conducting wave experiments in a water tank or harbor. Then, the wave elements are input into the wave maker system. The water body generates the waves required for the experiment as the wave maker moves. At this time, the contact wave height meter collects the wave parameters, and finally the collected parameter information is subjected to spectral analysis to realize the experimental simulation of offshore waves.

[0003] At present, university laboratories generally adopt the method of manual single calibration using homemade calibration buckets. Some instrument manufacturers use manual batch calibration (or calibration) methods, as well as some automated wave height meter calibration methods.

[0004] The calibration method uses a homemade calibration bucket and is carried out manually for each instrument. Each instrument needs to be calibrated individually, and each instrument is generally calibrated 8-10 times. The calibration device consists of a water bucket, a water level probe, and two personnel (one person moves the water level probe, and one person operates the calibration software). Each instrument measures 8-10 sets of data in the calibration bucket to fit the corresponding relationship between the actual water level and the electrical signal. The calibration time for each wave height meter is about 15 minutes. A large-scale model experiment generally requires 60 wave height meters, so 60 instruments will take 900 minutes, or 15 hours. The calibration work alone consumes a lot of manpower and time. In addition, the probe needs to be manually adjusted and calibrated for the moving step length, and the naked eye reading has a large human error. When the probe moves, it cannot be guaranteed that the instrument moves vertically in a straight line, which will also cause errors in the instrument calibration coefficient.

[0005] The manual batch calibration method uses a mechanical device to fix multiple wave height gauges at once. The water level is controlled by the drain valve or inlet valve at the bottom of the measuring barrel. After the water level stabilizes, each set of measured values is read and a linear fit is used to obtain a correlation. However, it takes a long time for the water level to stabilize, and manual readings can result in large measurement errors.

[0006] Partially automated wave height gauge calibration methods use a mechanical device to raise or lower the instrument. All mechanical operations and data readings are performed through a computer human-machine interface. This is a single-instrument automated calibration method that requires repeated switching between the manufacturer's wave height gauge calibration software interface. Furthermore, the calibration process cannot automatically determine whether the instrument remains vertical.

[0007] The contact-type wave height meter automatic batch calibration device with voice announcement uses a 60cm diameter bucket and can calibrate 20 wave height meters at a time. A second motor controls the step length, automatically recording the data and moving one step every 30 seconds. A set of experiments with 10 steps takes only 5 minutes, allowing 60 instruments to be operational within half an hour. Currently, there are many scheduled experiments in experimental flumes and harbors, and rental fees are high, ranging from 400 to 3,000 yuan per day. Saving instrument calibration time will improve flume and harbor turnover efficiency and reduce both labor and time costs.

[0008] Therefore, the present invention designs a contact wave height meter batch calibration device to solve the problems of cumbersome manual operation, long time consumption and large errors in the calibration process of traditional instruments, and improve the accuracy of calibration and experimental efficiency. Summary of the Invention

[0009] The invention provides a contact-type wave height meter batch calibration device, which solves the technical problems that the existing wave height meter calibration work is complicated, time-consuming and has large errors.

[0010] The present invention solves the above-mentioned technical problem with the following technical solution: a contact wave height meter batch calibration device, comprising: a base, a bucket filled with water, a first drive mechanism, a second drive mechanism, a lifting rod, a lifting plate, and a plurality of buckles.

[0011] The water bucket is immersed in a wave maker and is located on one side of the base. A water inlet and a water outlet are provided on the lower wall of the water bucket. A water inlet valve is installed at the water inlet, and a water outlet valve is installed at the water outlet. The fixed part of the first driving mechanism is fixed on the base and its moving part reciprocates from close to the water bucket to away from the water bucket. The fixed part of the second driving mechanism is fixed on the moving part of the first driving mechanism and its moving part reciprocates along the height direction of the water bucket. The top end of the lifting rod is fixed on the moving part of the second driving mechanism. The lifting plate is located parallel to the water bucket and fixed to the bottom end of the lifting rod. A plurality of plug holes are provided at intervals on the lifting plate. A plurality of the clips are respectively inserted into the plurality of the plug holes and the contact wave height meters to be calibrated can be detachably clamped in them, so that the positions of the plurality of the contact wave height meters can be moved along the height direction of the water bucket along with the moving part of the second driving mechanism, thereby realizing batch calibration of the plurality of the contact wave height meters.

[0012] The beneficial effects of the present invention are: improving the traditional manual calibration method of the contact wave height meter, firstly, a plurality of contact wave height meters to be calibrated are detachably snapped into a plurality of buckles, and then the moving part of the second driving mechanism is used to link the plurality of contact wave height meters to be calibrated to rise and fall. Since the wave maker generates the waves required for the test according to the input wave elements, the measurement values of the plurality of contact wave height meters at different liquid levels can be accurately and batch-calibrated according to the actual wave parameters.

[0013] On the basis of the above technical solution, the present invention can also be improved as follows.

[0014] Furthermore, the first driving mechanism includes a guide rail, a slide, a carriage, a rack, a first motor and a gear, the guide rail being the fixed part of the first driving mechanism, the guide rail being arranged from close to the water bucket to away from the water bucket and being fixed to the top of the base; the slide slides on the guide rail; the carriage is the moving part of the first driving mechanism and is fixed on the slide; the rack is arranged parallel to the guide rail and is fixed on the base; the first motor is fixed on the carriage and its output shaft is arranged along the height direction of the water bucket; the gear sleeve is fixed on the output shaft of the first motor and is meshed with the rack to drive the carriage to move back and forth from close to the water bucket to away from the water bucket; the fixed part of the second driving mechanism is fixed on the carriage.

[0015] Furthermore, the second driving mechanism includes a second motor, a driving wheel, a driven wheel, a synchronous belt and a lifting block. The second motor is the fixed part of the second driving mechanism, the second motor is fixed on the slide and its output shaft is arranged in a direction perpendicular to the height of the bucket; the driving wheel is rotatably connected to the top of the slide and is transmission-connected to the second motor; the driven wheel is rotatably connected to the bottom of the slide; the synchronous belt rolls on the driving wheel and the driven wheel; the lifting block is the moving part of the second driving mechanism and is fixed on the synchronous belt; the lifting rod is fixed on the lifting block.

[0016] Furthermore, the lifting rod includes a first lifting rod and a second lifting rod, the first lifting rod is arranged along the height direction perpendicular to the bucket and one end of the first lifting rod is fixed to the lifting block; the second lifting rod is arranged along the height direction of the bucket and the top end of the second lifting rod is fixed to the other end of the first lifting rod; the lifting plate is fixed to the bottom end of the second lifting rod.

[0017] Furthermore, it also includes multiple vertical lines and multiple lead blocks, the multiple vertical lines are respectively arranged relative to the multiple contact wave height meters and the top ends thereof are respectively fixed on the bottom surface of the lifting plate; the multiple lead blocks are respectively fixed on the bottom ends of the multiple vertical lines.

[0018] A further beneficial effect of the above method is that, by using the vertical lines and lead blocks arranged relative to the multiple contact wave height meters, it is possible to determine whether the contact wave height meters are in a vertical state during measurement, thereby reducing the error caused by non-vertical measurement of the contact wave height meters.

[0019] Furthermore, it also includes a digital display sound alarm, which is fixed on the moving part of the second driving mechanism.

[0020] A further beneficial effect of the above-mentioned method is that the use of a digital display sound alarm to monitor and report the height in real time can reduce the number of calibration personnel and improve the calibration efficiency without changing the manufacturer's system software.

[0021] Furthermore, it also includes a wave height collector and a laptop computer, wherein the wave height collector is communicatively connected to the plurality of contact wave height meters via a power line, Bluetooth or WiFi; the laptop computer is communicatively connected to the wave collector via a power line, Bluetooth or WiFi.

[0022] The further beneficial effects of adopting the above are: establishing a deep learning model of historical calibration data to realize intelligent prediction of equipment aging parameters, and conducting manual intervention to select compensation mode; developing an automatic calibration report generation system to provide parameter recommendations within the use cycle of the wave height meter.

[0023] Furthermore, it also includes a remote controller, which is remotely connected to the first driving mechanism and the second driving mechanism via a power cord, Bluetooth or WiFi.

[0024] A further beneficial effect of the above is that the remote control can accurately change the positions of multiple contact wave height meters to be calibrated by remotely controlling the first drive mechanism and the second drive mechanism via a power cord, Bluetooth or WiFi, thereby avoiding the influence of human error on the calibration results.

[0025] Furthermore, it also includes a six-dimensional vibration sensor, which is fixed on the lifting plate.

[0026] Furthermore, it also includes a photoelectric water level meter, which is fixed in the water bucket.

[0027] Adopt above-mentioned further beneficial effect is:

[0028] 1. The lifting rod may produce vibration or position deviation during movement. The present invention proposes a dynamic compensation algorithm. The movement of the lifting rod is first simulated according to the Lagrange equation, and a model algorithm is established. The vibration is monitored using a six-dimensional force sensor and a photoelectric water level gauge. When the vibration is large, the system alarms, stops the calibration, and sends instructions to the first motor and the second motor to recalibrate from the beginning. When the vibration is within a controllable range, the dynamic compensation algorithm can be used to offset the vibration, and calibration can be continued to achieve accurate tracking of the instrument lifting.

[0029] 2. Use a photoelectric water level gauge to monitor the water depth and compare it with the moving position information of the lifting rod to ensure that the position information is within the allowable error range. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure is a schematic diagram of the three-dimensional structure of a batch calibration device of a contact type wave height meter according to the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] 1. Base, 2. Bucket, 3. First drive mechanism, 31. Guide rail, 32. Slide, 33. Rack, 34. First motor, 35. Gear, 4. Second drive mechanism, 41. Second motor, 42. Synchronous belt, 43. Lifting block, 5. Lifting rod, 51. First lifting rod, 52. Second lifting rod, 6. Lifting plate, 7. Buckle, 8. Water inlet valve, 9. Water outlet valve, 10. Contact wave height meter, 11. Plumb line, 12. Lead block. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0034] like Figure 1 As shown, a contact wave height meter batch calibration device includes: a base 1, a bucket 2 containing water, a first drive mechanism 3, a second drive mechanism 4, a lifting rod 5, a lifting plate 6 and a plurality of buckles 7.

[0035] The water bucket 2 is immersed in a wave maker and is located on one side of the base 1. A water inlet and a water outlet are provided on the lower wall of the water bucket 2. An inlet valve 8 is installed at the water inlet, and an outlet valve 9 is installed at the water outlet; the fixed part of the first driving mechanism 3 is fixed on the base 1 and its moving part reciprocates from close to the water bucket 2 to away from the water bucket 2; the fixed part of the second driving mechanism 4 is fixed on the moving part of the first driving mechanism 3 and its moving part reciprocates along the height direction of the water bucket 2; the top end of the lifting rod 5 is fixed on the moving part of the second driving mechanism 4; the lifting plate 6 is located parallel to the top of the water bucket 2 and fixed to the bottom end of the lifting rod 5, and a plurality of plug holes are provided at intervals on the lifting plate 6; a plurality of clips 7 are respectively inserted into the plurality of plug holes and the contact wave height meters 10 to be calibrated can be detachably clamped in them, so as to move the positions of the plurality of contact wave height meters 10 along the height direction of the water bucket 2 along with the moving part of the second driving mechanism 4, thereby realizing batch calibration of the plurality of contact wave height meters 10.

[0036] In some specific embodiments, the first driving mechanism 3 may include a guide rail 31, a slide, a slide 32, a rack 33, a first motor 34 and a gear 35. The guide rail 31 is the fixed part of the first driving mechanism 3, and the guide rail 31 is arranged from close to the bucket 2 to away from the bucket 2 and is fixed to the top of the base 1; the slide slides on the guide rail 31; the slide 32 is the moving part of the first driving mechanism 3 and is fixed on the slide; the rack 33 is arranged parallel to the guide rail 31 and is fixed on the base 1; the first motor 34 is fixed on the slide 32 and its output shaft is arranged along the height direction of the bucket 2; the gear 35 is sleeved on the output shaft of the first motor 34 and is meshed with the rack 33 to drive the slide 32 to move back and forth from close to the bucket 2 to away from the bucket 2; the fixed part of the second driving mechanism 4 is fixed on the slide 32.

[0037] In some specific embodiments, the second driving mechanism 4 may include a second motor 41, a driving wheel, a driven wheel, a synchronous belt 42 and a lifting block 43. The second motor 41 is the fixed part of the second driving mechanism 4. The second motor 41 is fixed on the slide 32 and its output shaft is arranged along the height direction of the vertical bucket 2; the driving wheel is rotatably connected to the top of the slide 32 and is transmission-connected to the second motor 41; the driven wheel is rotatably connected to the bottom end of the slide 32; the synchronous belt 42 rolls on the driving wheel and the driven wheel; the lifting block 43 is the moving part of the second driving mechanism 4 and is fixed on the synchronous belt 42; the lifting rod 5 is fixed on the lifting block 43.

[0038] In some specific embodiments, the lifting rod 5 may include a first lifting rod 51 and a second lifting rod 52, the first lifting rod 51 is arranged along the height direction of the vertical bucket 2 and one end of which is fixed on the lifting block 43; the second lifting rod 52 is arranged along the height direction of the bucket 2 and its top end is fixed to the other end of the first lifting rod 51; the lifting plate 6 is fixed to the bottom end of the second lifting rod 52.

[0039] In some specific embodiments, multiple vertical lines 11 and multiple lead blocks 12 may also be included. The multiple vertical lines 11 are respectively arranged relative to the multiple contact wave height meters 10 and the top ends thereof are respectively fixed to the bottom surface of the lifting plate 6; the multiple lead blocks 12 are respectively fixed to the bottom ends of the multiple vertical lines 11.

[0040] In some specific embodiments, a digital display sound alarm may also be included, and the digital display sound alarm is fixed on the moving part of the second driving mechanism 4.

[0041] In some specific embodiments, a wave height collector and a laptop computer may also be included. The wave height collector is communicatively connected to multiple contact wave height meters 10 via a power line, Bluetooth or WiFi; the laptop computer is communicatively connected to the wave collector via a power line, Bluetooth or WiFi.

[0042] In some specific embodiments, a remote controller is further included, and the remote controller is remotely connected to the first driving mechanism 3 and the second driving mechanism 4 via a power cord, Bluetooth or WiFi.

[0043] In some specific embodiments, a six-dimensional vibration sensor may also be included, and the six-dimensional vibration sensor is fixed on the lifting plate 6.

[0044] In some specific embodiments, a photoelectric water level meter may also be included, and the photoelectric water level meter is fixed in the water bucket 2.

[0045] Example

[0046] The second motor controls the ascending or descending movement of the synchronous belt. For example, for a 30cm ascending movement, the remote control controls distance (30cm) and step size (3cm), or distance and number of acquisitions (10). Each time the synchronous belt moves, the digital display and voice controller display the distance moved and count the number. In other words, you can set the step size and number of acquisitions (for evenly spaced movement), as well as the total ascending (or descending) distance and number of acquisitions. The step size ranges from 2cm to 9cm, and can be selected digitally on the remote control. For example, if the step size is 3cm and the number of acquisitions is 10 (acquiring at the water surface or reference level), the total descent distance is 3*9=27cm. During this descent, the wave height meter generates 10 sets of actual and fitted data. For a 30cm descending movement, the wave height meter generates 7 equal acquisitions, meaning a data acquisition every 5cm (step size). Each acquisition is followed by a pause of 20 to 120 seconds, with a selectable pause time to ensure the water surface is still.

[0047] The first motor controls the gear to rotate, causing the gear to move linearly on the rack, so that the contact wave height meter moves forward to a suitable position at the upper end of the bucket.

[0048] The wave height meter is connected to the wave height acquisition device via a power cord, Bluetooth or WiFi, and then connected to a laptop computer via a power cord, Bluetooth or WiFi to read the data measured by the wave height meter.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A contact wave height meter batch calibration device, characterized in that: include: Base (1), A water bucket (2) containing water, wherein a wave maker is immersed in the water bucket (2) and is located on one side of the base (1), and a water inlet and a water outlet are provided on the lower wall of the water bucket (2), wherein an inlet valve (8) is installed at the water inlet, and an outlet valve (9) is installed at the water outlet; a first driving mechanism (3), wherein a fixed portion of the first driving mechanism (3) is fixed to the base (1) and a movable portion thereof reciprocates from a direction close to the water bucket (2) to a direction away from the water bucket (2); a second driving mechanism (4), wherein a fixed portion of the second driving mechanism (4) is fixed to a movable portion of the first driving mechanism (3) and the movable portion reciprocates along a height direction of the water bucket (2); A lifting rod (5), the top end of which is fixed on the moving part of the second driving mechanism (4); A lifting plate (6), the lifting plate (6) is located parallel to and above the water bucket (2) and is fixed to the bottom end of the lifting rod (5), and a plurality of plug holes are provided at intervals on the lifting plate (6); A plurality of clips (7) are respectively inserted into the plurality of insertion holes and can be detachably clipped with contact wave height meters (10) to be calibrated, so as to move the positions of the plurality of contact wave height meters (10) along the height direction of the water bucket (2) along with the moving part of the second driving mechanism (4), thereby realizing batch calibration of the plurality of contact wave height meters (10).

2. A contact wave height meter batch calibration device according to claim 1, characterized in that: The first driving mechanism (3) comprises a guide rail (31), a slide, a carriage (32), a rack (33), a first motor (34) and a gear (35); the guide rail (31) is a fixed part of the first driving mechanism (3); the guide rail (31) is arranged from close to the water bucket (2) to away from the water bucket (2) and is fixed to the top of the base (1); the slide slides on the guide rail (31); the carriage (32) is a moving part of the first driving mechanism (3) and is fixed on the slide; the gear (35) is a fixed part of the first driving mechanism (3) and is fixed to the slide; The rack (33) is arranged in parallel with the guide rail (31) and is fixed on the base (1); the first motor (34) is fixed on the slide (32) and its output shaft is arranged along the height direction of the water bucket (2); the gear (35) is sleeved on the output shaft of the first motor (34) and is meshed with the rack (33) to drive the slide (32) to move back and forth from close to the water bucket (2) to away from the water bucket (2); the fixed part of the second driving mechanism (4) is fixed on the slide (32).

3. A contact wave height meter batch calibration device according to claim 2, characterized in that: The second driving mechanism (4) comprises a second motor (41), a driving wheel, a driven wheel, a synchronous belt (42) and a lifting block (43); the second motor (41) is a fixed part of the second driving mechanism (4); the second motor (41) is fixed on the slide (32) and its output shaft is arranged in a direction perpendicular to the height of the water bucket (2); the driving wheel is rotatably connected to the top end of the slide (32) and is transmission-connected to the second motor (41); the driven wheel is rotatably connected to the bottom end of the slide (32); the synchronous belt (42) rolls on the driving wheel and the driven wheel; the lifting block (43) is a moving part of the second driving mechanism (4) and is fixed on the synchronous belt (42); the lifting rod (5) is fixed on the lifting block (43).

4. A contact wave height meter batch calibration device according to claim 3, characterized in that: The lifting rod (5) comprises a first lifting rod (51) and a second lifting rod (52); the first lifting rod (51) is arranged in a height direction perpendicular to the water bucket (2) and one end of the first lifting rod is fixed to the lifting block (43); the second lifting rod (52) is arranged in the height direction of the water bucket (2) and the top end of the second lifting rod is fixed to the other end of the first lifting rod (51); the lifting plate (6) is fixed to the bottom end of the second lifting rod (52).

5. A contact wave height meter batch calibration device according to claim 1, characterized in that: The invention also includes a plurality of vertical lines (11) and a plurality of lead blocks (12). The plurality of vertical lines (11) are respectively arranged relative to the plurality of contact wave height meters (10) and the top ends thereof are respectively fixed to the bottom surface of the lifting plate (6); and the plurality of lead blocks (12) are respectively fixed to the bottom ends of the plurality of vertical lines (11).

6. A contact wave height meter batch calibration device according to claim 1, characterized in that: It also includes a digital display sound alarm, which is fixed on the moving part of the second driving mechanism (4).

7. A contact wave height meter batch calibration device according to claim 1, characterized in that: It also includes a wave height collector and a laptop computer. The wave height collector is communicatively connected to the plurality of contact wave height meters (10) via a power line, Bluetooth or WiFi; and the laptop computer is communicatively connected to the wave height collector via a power line, Bluetooth or WiFi.

8. A contact wave height meter batch calibration device according to claim 1, characterized in that: It also includes a remote controller, which is remotely connected to the first drive mechanism (3) and the second drive mechanism (4) via a power cord, Bluetooth or WiFi.

9. A contact wave height meter batch calibration device according to claim 1, characterized in that: It also includes a six-dimensional vibration sensor, which is fixed on the lifting plate (6).

10. A contact wave height meter batch calibration device according to claim 1, characterized in that: It also includes a photoelectric water level meter, which is fixed in the water bucket (2).

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