Wave simulation and verification device for calibrating GNSS (Global Navigation Satellite System) wave sensor

Abstract

The invention relates to the field of wave sensor simulation and verification, in particular to a wave simulation and verification device for GNSS wave sensor calibration, which comprises a control case, a rotating beam, a supporting beam, a carrying platform, a case supporting column and a bottom plate, a connecting hole is formed in the supporting beam, the case supporting column is connected above the bottom plate, and the bottom plate is connected with the carrying platform. The control case comprises a case body, a horizontal driver, a vertical driver and a controller, the controller controls the horizontal driver and the vertical driver to operate, the horizontal driver drives the case body to rotate around the case supporting column in the horizontal direction, the vertical driver comprises a rotating motor and a rotating rod, the rotating motor is fixed in the case body, and the rotating rod is fixed in the case body. The rotating rod is connected with the output end of the rotating motor and extends out of the box body, one end of the rotating truss rod is fixedly connected with the rotating rod, the other end of the rotating truss rod is hinged into the connecting hole, the carrying platform is fixed to the top end of the supporting truss rod, and a balance weight is arranged at the bottom end of the supporting truss rod. The device is small in overall size and convenient to disassemble and move.

Description

Technical Field

[0001] The present invention relates to the field of wave sensor simulation and verification, and particularly to a wave simulation and verification device for calibrating GNSS wave sensors. Background Art

[0002] Waves, as an intuitive form of ocean surface motion, play a crucial role in the ocean hydrological monitoring system. As the three core index data of waves, wave direction, wave height, and wave period, accurately obtaining them is of great significance for in-depth understanding of the ocean state, ensuring the safety of offshore operations, and marine ecological research. At present, using a buoy body equipped with a wave sensor to collect wave data has become an important technical path for obtaining wave data at home and abroad.

[0003] The value transfer of wave buoys is directly related to the reliability of wave data. Currently, the metrological standard devices for calibrating, verifying, and detecting wave sensors at home and abroad are usually installed in laboratories and are mainly applicable to gravity acceleration wave sensors. With the continuous development of ocean technology, to make up for the limitations of the measurement parameters of gravity acceleration wave sensors, new wave measurement technologies based on the Global Navigation Satellite System (GNSS), acoustics, etc. are gradually applied to the wave monitoring field, which puts forward new requirements for the detection methods of wave sensors.

[0004] GNSS wave sensors are based on the principles of carrier phase, Doppler frequency shift, and attitude measurement. By measuring the phase, frequency shift, and platform attitude changes of satellite signals, the vertical and horizontal motion information of the receiver is obtained, and then parameters such as wave height and period of ocean waves are inverted. Based on this principle, GNSS wave measurement needs to be carried out in an open environment without obstruction, and there should be no obstacles around to block satellite signals. The relevant detection devices are mainly installed in laboratories. Coupled with the influence of the device's own structure on satellite signal reception, it cannot meet the calibration, verification, and detection of GNSS wave sensors. Summary of the Invention

[0005] Aiming at the technical problems existing in the calibration of GNSS wave sensors, the purpose of the present invention is to provide a simple wave simulation and verification device applicable to GNSS wave sensors. The device is placed outdoors. Only by placing the sensor at the designated position of the device and setting the relevant rotation parameters of the device's rotation motor, wave simulation of wave height, wave period, and wave direction can be carried out to achieve wave parameter detection.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a wave simulation and verification device for GNSS wave sensor calibration, including a control chassis, a rotating boom, a supporting boom, a load platform, a chassis support column, and a bottom plate. The supporting boom is provided with a connection hole. The chassis support column is vertically connected above the bottom plate. The control chassis includes a box body, a horizontal driver, a vertical driver, and a controller. The controller controls the operation of the horizontal driver and the vertical driver. The horizontal driver drives the box body to rotate around the chassis support column in the horizontal direction. The vertical driver includes a vertical rotating motor and a rotating rod. The vertical rotating motor is fixed inside the box body. The rotating rod is connected to the output end of the vertical rotating motor and extends outside the box body. One end of the rotating boom is fixedly connected to the rotating rod, and the other end of the rotating boom is hinged in the connection hole. The load platform is vertically fixed at the top of the supporting boom, and a balance weight is provided at the bottom end of the supporting boom.

[0007] In the above wave simulation and verification device for GNSS wave sensor calibration, when the hinged end of the rotating boom rotates to the lowest point, the load platform is completely above the control chassis.

[0008] In the above wave simulation and verification device for GNSS wave sensor calibration, the balance weight includes a weight box and weight blocks. The weight box is fixed at the bottom end of the supporting boom, and the weight blocks are placed inside the weight box.

[0009] In the above wave simulation and verification device for GNSS wave sensor calibration, the chassis support column includes an outer sleeve, an inner sleeve column, a rotating connection structure, and a mounting top plate. A horizontal driving hole is provided at the middle position of the mounting top plate. The mounting top plate is fixed above the outer sleeve and fixedly connected to the box body. The inner sleeve column is vertically fixed on the bottom plate. The outer sleeve is sleeved outside the inner sleeve column. An inner sleeve column hole is provided at the top end of the inner sleeve column. The rotating connection structure is arranged between the outer sleeve and the inner sleeve column.

[0010] In the above wave simulation and verification device for GNSS wave sensor calibration, the horizontal driver includes a horizontal driving motor, a mounting bracket, and a horizontal driving rod. The mounting bracket fixes the horizontal driving motor inside the box body. The horizontal driving rod is connected to the output end of the horizontal driving motor. After passing through the outer wall of the box body and the horizontal driving hole, the horizontal driving rod is inserted into the inner sleeve column hole.

[0011] The above-mentioned wave simulation and verification device for calibrating GNSS wave sensors, wherein the rotational connection structure uses bearings, the inner shaft of the bearing is fixedly sleeved on the outer side of the embedded column, the outer shaft of the bearing abuts against the inner wall of the outer sleeve, and at least two bearings are provided.

[0012] The above-mentioned wave simulation and verification device for calibrating GNSS wave sensors, wherein pulleys are provided below the bottom plate.

[0013] The above-mentioned wave simulation and verification device for calibrating GNSS wave sensors, wherein support strut columns and rotary rod holes are respectively provided at both ends of the rotary strut, the rotary rod is inserted into the rotary rod hole, and the support strut column is inserted into the connection hole.

[0014] The beneficial effects of the wave simulation and verification device for calibrating GNSS wave sensors according to the present invention are as follows: The overall volume of the device is small, which is convenient for disassembly and movement. The entire device can be moved outdoors to complete the verification of GNSS wave sensors. The connection between the rotary strut and the support strut is simple, with fewer screw fastening parts, reducing the installation time. The length of the strut can be adjusted as needed, thereby changing the rotation radius and height of the load platform. By customizing the motor speed and using the supporting balance weights, different wave data can be simulated, and the set parameters can be viewed in real time through the control panel. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 It is a schematic diagram of the control chassis structure in an embodiment of the present invention; Figure 3 It is a schematic diagram of the rotary strut structure in an embodiment of the present invention; Figure 4 It is a schematic diagram of the support strut structure in an embodiment of the present invention; Figure 5 It is a schematic diagram of the connection hole fixing screw structure in an embodiment of the present invention; Figure 6 It is a schematic diagram of the chassis support column and the rotary chassis structure in an embodiment of the present invention; Figure 7 It is a schematic diagram of the lowest point of the rotary strut in an embodiment of the present invention.

[0016] Description of reference numerals: control chassis 1, vertical rotating rod 101, horizontal driving rod 102, controller 103, boom adjusting button 1031, support column adjusting button 1032, display screen 1033, USB port 1034, box body 104, vertical rotating motor 105, rotating boom 2, rotating rod hole 201, support boom hole 202, support boom 3, connection hole 301, connection bearing 302, load platform 4, balance weight 5, chassis support column 6, installation top plate 601, horizontal driving hole 602, embedded column 7, embedded column hole 703, lower bearing 701, upper bearing 702, bottom plate 8, GNSS wave sensor 9, moving roller 10. Detailed implementation manners

[0017] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be described below in conjunction with the detailed implementation manners and the accompanying drawings.

[0018] Embodiment 1 As Figure 1 , Figure 2 , Figure 6 shown, a wave simulation and verification device for calibrating a GNSS wave sensor includes a control chassis 1, a rotating boom 2, a support boom 3, a load platform 4, a chassis support column 6, and a bottom plate 8. The GNSS wave sensor 9 is placed on the load platform.

[0019] The support boom is provided with a connection hole. The chassis support column is vertically connected above the bottom plate. The control chassis includes a box body 104, a horizontal driver, a vertical driver, and a controller 103. The controller controls the operation of the horizontal driver and the vertical driver. The horizontal driver drives the box body to rotate horizontally around the chassis support column. The vertical driver includes a vertical rotating motor 105 and a vertical rotating rod 101. The rotating motor is fixed inside the box body. The rotating rod is connected to the output end of the rotating motor and extends outside the box body. One end of the rotating boom is fixedly connected to the rotating rod, and the other end of the rotating boom is hinged in the connection hole. The load platform is vertically fixed at the top end of the support boom, and a balance weight is provided at the bottom end of the support boom.

[0020] The horizontal driver also uses a rotating motor to provide power. The difference between it and the vertical driver is that the horizontal driver drives the entire control chassis to rotate horizontally. Therefore, the rotating motor of the horizontal driver is connected to the chassis support column to drive the chassis support column to rotate.

[0021] The balance weight includes a weight box and weight blocks. The weight box is fixed at the bottom end of the support boom, and the weight blocks are placed inside the weight box. The weight blocks can be replaced at any time according to the needs of the experiment.

[0022] The bottom of the chassis support column is provided with a support column rotating tooth. The bottom plate includes a rotating chassis, a rotating tooth socket, a fixed chassis, a chassis groove, and a plain bearing. The chassis groove is provided on the fixed chassis. The rotating tooth socket is arranged above the middle of the rotating chassis. The rotating chassis is rotatably installed in the chassis groove. The rotating tooth socket protrudes out of the chassis groove. The plain bearing is arranged between the rotating chassis and the fixed chassis. The support column rotating tooth is inserted into the rotating tooth socket.

[0023] The rotating truss rod includes rotating rod holes, support truss rod holes 202, and truss fixing screws provided at both ends of the rotating truss rod. Insert the front end of the vertically rotating rod 101 with a hollow adaptor into the rotating rod hole 201. The hole and slot structure can ensure that the platform rotating truss rod rotates with the vertical rotating motor. At the other end of the support truss rod, there is a connection hole adapted to the support truss rod hole. Pass the truss fixing screw through the connection hole and the support truss rod hole, and lock it with a nut. In addition, insert the fixing screw into the hollow controller rotating rod and tighten it to prevent the rotating truss rod from falling off. After installation, the platform rotating truss rod can be operated to rotate in the vertical direction through the rotating motor inside the chassis.

[0024] In this embodiment, the motor speed can only simulate the wave period, and the length of the rod can simulate the wave height. The balance weight is used for leveling, not for simulating waves.

[0025] Embodiment 2 As Figure 1 shown, a wave simulation and calibration device for GNSS wave sensor calibration includes a control chassis 1, a rotating truss rod 2, a support truss rod 3, a load platform 4, a balance weight 5, a chassis support column 6, a bottom plate 8, and moving rollers 10. A rotating motor is installed inside the control chassis. The rotating motor includes a horizontal rotating motor and a vertical rotating motor 105. The vertical rotating motor is used to control the rotation of the platform rotating truss rod. The horizontal rotating motor is used to control the rotation of the chassis support column relative to the bottom plate. The balance weight is connected to the load platform through the platform support truss rod and maintains the load platform always facing upward, ensuring that the head of the GNSS wave sensor placed on the load platform faces upward and is not affected by the rotating device. While providing a support function, the chassis support column drives the chassis to rotate horizontally, and at the same time ensures that the bottom plate of the device does not rotate with the chassis support column. Moving rollers are installed at the bottom of the bottom plate to facilitate personnel to move the device.

[0026] Furthermore, the control chassis includes a chassis controller, a rotating rod, and a rotating control panel, which are responsible for the periodic rotation of the load platform and the chassis. The rotation speed of the rotating motor is set through the control panel to control the rotation speed. The power supply cable of the control chassis is led out along the rotation of the chassis from the bottom of the support column, facilitating external connection for power supply and avoiding cable entanglement at the same time.

[0027] As Figure 2As shown in the figure, the horizontal rotation motor and the vertical rotation motor are installed inside the control chassis, and are responsible for the rotation of the platform rotating boom and the control chassis. Other structures of the control chassis include: a controller 103, a chassis 104, and a mounting bracket. The controller uses a rotary control panel, including a boom adjustment button 1031, a support column adjustment button 1032, a display screen 1033, and a USB port 1034. The mounting bracket fixes the horizontal rotation motor and the vertical rotation motor inside the chassis, and regulates the motor speeds of the horizontal drive and the vertical drive inside the control chassis through the rotary control panel. Among them, the boom adjustment button can adjust the rotation speed and direction of the platform rotating boom, and the support column adjustment button can adjust the rotation speed and direction of the chassis support column. The relevant parameters can be viewed through the display screen, and the rotation data during the experiment can be input into the device through the USB port for setting or export. A hollow controller rotating rod extends from the output end of the rotation motor of the control chassis, which is responsible for the rotation of the platform rotating boom and is equipped with a direction sensor inside to be responsible for device orientation. A similar structure is provided at the lower part of the chassis to be responsible for the rotation of the chassis support column.

[0028] The rotation speed of the rotation motor of the vertical drive inside the control chassis can be set through the control panel. By calculating the time for the load platform to rotate vertically for one week and combining with the boom length, the change data of the wave height and wave period of the wave can be simulated.

[0029] Furthermore, the rotation speed of the rotation motor of the horizontal drive inside the control chassis can be set through the control panel. By inferring the rotation direction of the support column at different times based on the rotation speed, the change data of the wave direction of the wave can be simulated.

[0030] Use the control panel to set the operation time of the device at different rotation speeds to form non-constant uniform wave simulation data.

[0031] The rotating boom and the supporting boom form a boom structure. The rotating boom structure is as Figure 3 shown, including support boom columns 201 and rotating rod holes 202 provided at both ends of the rotating boom. The rotating rod holes 202 are sleeved outside the vertical rotating rod 101 to be responsible for the rotation of the rotating boom. The use of the internal hole slot structure can ensure that the platform rotating boom rotates with the vertical rotation motor.

[0032] The schematic diagram of the structure of the platform support boom is as Figure 4 shown. The top of the support boom is the load platform, and the bottom is the balance weight. The balance weight uses an openable square box structure, and different weights of weights can be replaced according to needs. The minimum requirement for the weight of the weight is that the platform support boom is always in the vertical direction. When static, the minimum weight of the weight needs to ensure that the load platform is vertically upward. Different weights of weights are strung together with fixed-weight weights and screws, and different weights of weights can be replaced according to needs. The minimum requirement for the weight of the weight is that the platform support boom is always in the vertical direction.

[0033] The rotating boom is connected to the platform support boom as Figure 5 shown. There are connection holes 301 for fixing the rotating boom in the support boom. A connection bearing 302 is installed in the connection hole of the support boom. The support boom column 201 of the rotating boom is inserted into the connection bearing 302. A fixing screw is inserted into the hollow controller rotating rod and tightened to prevent the rotating boom from falling off. After installation, the platform rotating boom can be operated to rotate in the vertical direction through the internal rotating motor of the chassis.

[0034] As Figure 6 shown, the chassis support column includes an outer sleeve, an inner embedded column 7, a rotating connection structure, and a mounting top plate 601. A horizontal driving hole 602 is provided at the middle position of the mounting top plate. The mounting top plate is fixed above the outer sleeve and fixedly connected to the box body. The inner embedded column is vertically fixed on the bottom plate. The outer sleeve is sleeved outside the inner embedded column. An inner embedded column hole 703 is provided at the top of the inner embedded column. The rotating connection structure is arranged between the outer sleeve and the inner embedded column.

[0035] The horizontal driver includes a horizontal driving motor, a mounting bracket, and a horizontal driving rod 102. The mounting bracket fixes the horizontal driving motor inside the box body. The horizontal driving rod is connected to the output end of the horizontal driving motor. After passing through the outer wall of the box body and the horizontal driving hole, the horizontal driving rod is inserted into the inner embedded column hole.

[0036] The rotating connection structure uses bearings. The inner shaft of the bearing is fixedly sleeved outside the inner embedded column. The outer shaft of the bearing abuts against the inner wall of the outer sleeve. No less than two bearings are provided according to the sleeved length of the outer sleeve and the inner embedded column. One upper bearing 702 is arranged at the upper part of the inner embedded column, close to the mounting top plate. The other lower bearing 701 is arranged at the bottom of the inner embedded column, close to the bottom plate. According to different length requirements of the chassis support column, transition bearings can be evenly arranged between the upper bearing and the lower bearing. The diameter of the horizontal driving hole is larger than the diameter of the inner embedded column hole and smaller than the outer diameter of the bearing.

[0037] As Figure 7 shown, when the load platform 4 rotates to the lowest point position, it is still higher than the chassis position, which can ensure that the GNSS wave sensor 9 is not blocked by the device and the signal reception is not interfered.

[0038] By configuring balance weights, ensure that the support boom is always in a vertical state. The motor is responsible for completing the rotation of the rotating boom and the chassis support column. The wave height data simulation is completed by rotating the rotating boom with the motor. The maximum wave height data is adjusted by adjusting the length of the support boom. The wave period data simulation is adjusted by adjusting the motor speed.

[0039] Based on the device, the periodic rotation of the rotating boom in the vertical direction can simulate the variation data of wave height and wave period, and the periodic rotation of the chassis support column in the horizontal direction can simulate the variation data of wave direction. By customizing the rotational speed change of the rotating motor, non-uniform wave variation data can be simulated. After the experiment, the rotational speed, time, and azimuth data are exported through the control panel, and the simulated wave data is calculated in combination with the boom length, realizing the simple wave simulation and calibration of the GNSS wave sensor.

[0040] The above embodiments are only for illustrating the structural concept and characteristics of the present invention, aiming to enable those of ordinary skill in the art to understand the content of the present invention and implement it accordingly, and shall not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made based on the essence of the content of the present invention should be covered within the protection scope of the present invention.

Claims

1. A wave simulation and verification device for GNSS wave sensor calibration, characterized in that: It includes a control chassis, a rotating truss, a supporting truss, a loading platform, a chassis supporting column, and a bottom plate. The supporting truss is provided with a connecting hole. The chassis supporting column is vertically connected to the top of the bottom plate. The control chassis includes a box body, a horizontal drive, a vertical drive, and a controller. The controller controls the operation of the horizontal drive and the vertical drive. The horizontal drive drives the box body to rotate in the horizontal direction around the chassis supporting column. The vertical drive includes a vertical rotating motor and a rotating rod. The vertical rotating motor is fixed inside the box body. The rotating rod is connected to the output end of the vertical rotating motor and extends to the outside of the box body. One end of the rotating truss is fixedly connected to the rotating rod, and the other end of the rotating truss is hinged in the connecting hole. The loading platform is vertically fixed to the top end of the supporting truss. The bottom end of the supporting truss is provided with a balancing weight.

2. The wave simulation and verification device for GNSS wave sensor calibration according to claim 1, characterized in that: When the hinged end of the rotating truss rotates to the lowest point, the loading platform is completely located above the control cabinet.

3. The wave simulation and verification device for GNSS wave sensor calibration according to claim 1, characterized in that: The balancing weight comprises a weight box and a weight block. The weight box is fixed at the bottom end of the supporting truss, and the weight block is placed in the weight box.

4. The wave simulation and verification device for GNSS wave sensor calibration according to claim 1, characterized in that: The chassis support column includes an outer sleeve, an embedded column, a rotating connection structure, and a mounting top plate. A horizontal drive hole is provided in the middle position of the mounting top plate. The mounting top plate is fixed above the outer sleeve and fixedly connected to the box body. The embedded column is vertically fixed to the bottom plate. The outer sleeve is sleeved on the outside of the embedded column. An embedded column hole is provided at the top of the embedded column. The rotating connection structure is provided between the outer sleeve and the embedded column.

5. The wave simulation and verification device for GNSS wave sensor calibration according to claim 4, characterized in that: The horizontal driver includes a horizontal drive motor, a mounting bracket, and a horizontal drive rod. The mounting bracket fixes the horizontal drive motor inside the box. The horizontal drive rod is connected to the output end of the horizontal drive motor. The horizontal drive rod passes through the outer wall of the box and the horizontal drive hole, and is inserted into the embedded column hole.

6. The wave simulation and verification device for GNSS wave sensor calibration according to claim 4, characterized in that: The rotating connection structure uses a bearing, the inner shaft of the bearing is fixedly sleeved on the outer side of the embedded column, the outer shaft of the bearing abuts against the inner wall of the outer sleeve, and no less than two bearings are provided.

7. The wave simulation and verification device for GNSS wave sensor calibration according to claim 1, characterized in that: A pulley is arranged below the bottom plate.

8. The wave simulation and verification device for GNSS wave sensor calibration according to claim 1, characterized in that: The two ends of the rotating truss are respectively provided with a supporting truss column and a rotating rod hole, the rotating rod is inserted into the rotating rod hole, and the supporting truss column is inserted into the connecting hole.

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