Drifting ball and equipment for monitoring wind-generated flow on water surface
By designing a lightweight drift ball with more than 95% exposed to the air and installing an electronic device for wind speed monitoring, the problem of the inability to accurately measure the water surface wind speed in the prior art is solved, and low-cost and high-precision wind speed monitoring is achieved.
Patent Information
- Application Number
- CN202422141156.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The existing buoy measurement methods cannot accurately record the wind direction and wind speed on the surface of lakes or reservoirs. The reason is that the buoy is immersed in water, and the water flow direction and flow rate are measured rather than the wind direction and wind speed.
A lightweight drift ball with more than 95% exposed to the air is designed. The ball is equipped with electronic devices, including satellite positioning chips and radio frequency chips, and positioning and measurements are performed through radio beacons, and the position of the drift ball is determined by triangulation using a shore radio receiver.
Accurate monitoring of water surface wind flow is achieved, which is cheap, safe and reliable, and can effectively reduce the impact of water movement on measurement.
Smart Images
Figure CN223174277U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a drift ball and a device for monitoring the wind-driven current on the water surface, which is a device for hydraulic research and a device for studying the wind direction and wind speed on the water surface of a lake or a reservoir. Background Technique
[0002] For lakes and reservoirs with broad water surfaces, they seem calm and serene on the surface. However, in fact, due to various factors such as the inflowing and outflowing water currents, especially the disturbance of the wind, there is a natural flow of water in the water surface of the lake. To study this natural flow, it is necessary to monitor the air flow passing over the water surface, so as to find the influence of the wind direction and wind speed on the surface water flow. However, the existing measurement methods mainly rely on putting buoys in the water and observing them. The disadvantages of this method are obvious. Since the buoy is immersed in the water, the buoy actually measures not the wind direction and wind speed, but the flow direction and flow velocity of the water current. Therefore, how to accurately record the flow field of the air flow on the water surface of a lake or a reservoir is a problem that needs to be solved. Summary of the Invention
[0003] In order to overcome the problems of the prior art, the utility model provides a drift ball and a device for monitoring the wind-driven current on the water surface. The device is a light sphere that is more than 95% exposed to the air and less than 5% immersed in the water, and floats on the water surface as a whole. The movement of the sphere is affected by the wind direction and wind speed, and is less affected by the water movement. An electronic device is arranged inside the sphere for positioning and measurement.
[0004] The purpose of the utility model is realized as follows: A drift ball for monitoring the wind-driven current on the water surface, comprising: a spherical shell that can be opened from the middle and is hollow, a support rod is arranged inside the spherical shell to connect the spherical shell with an electronic compartment at the center of the spherical shell, a battery and a radio beacon are arranged in the electronic compartment, and the center of mass of the battery coincides with the center of mass of the spherical shell.
[0005] Further, the radio beacon includes: a satellite positioning chip and a radio frequency chip.
[0006] Further, the diameter of the spherical shell is 210 - 230 millimeters.
[0007] A device for monitoring the air flow on the water surface using the above drift ball, comprising: a drift ball and a radio receiver installed on the shore, and the radio receiver is connected to a data processing device.
[0008] The advantages and beneficial effects of the present utility model are as follows: The present utility model uses a lightweight sphere with more than 95% exposed to the air and less than 5% immersed in water, floating on the water surface as a whole. The movement of the sphere is affected by the wind direction and speed, and less affected by the water movement. An electronic device is provided inside the sphere for positioning and measurement. The equipment has low cost, is safe and reliable. Description of the Drawings
[0009] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0010] Figure 1 It is a schematic structural diagram of the drift ball according to Embodiment 1 of the present utility model;
[0011] Figure 2 It is a schematic diagram of the principle of the device for monitoring the water surface airflow according to Embodiment 4 of the present utility model. Detailed Embodiment
[0012] Embodiment 1:
[0013] This embodiment is a drift ball for monitoring the wind-driven current on the water surface, as Figure 1 shown. This embodiment includes: a hollow spherical shell 1 that can be opened from the middle, and a support rod 3 is provided inside the spherical shell to connect the spherical shell with the electronic compartment 2 at the center of the spherical shell. A battery 301 and a wireless beacon 302 are provided in the electronic compartment, and the center of mass of the battery coincides with the center of mass of the spherical shell.
[0014] The main body of the drift ball in this embodiment uses a relatively large spherical shell, which is the size of a football. The spherical shell can be opened from the center and is divided into two hemispheres. When the two hemispheres are combined, it is watertight inside. An electronic compartment capable of emitting radio signals is provided at the center of the spherical shell. The electronic devices in the electronic compartment should preferably use materials with lighter weights and smaller volumes as much as possible, and the center of mass of the electronic compartment should coincide with the center of mass of the spherical shell as much as possible to ensure isotropy during the floating process of the drift ball. Since the electronic devices need to use batteries and the mass of the batteries is relatively large, in order to make the center of mass of the electronic compartment coincide with that of the spherical shell, it can be considered to place the center of mass of the battery at the center of the spherical shell, and other electronic components with smaller masses are dispersed around the battery.
[0015] Inside the spherical shell, the electronic compartment is connected to the spherical shell using support rods to ensure a large air space is left between the electronic compartment and the shell. The purpose of this is to make the entire drift ball have a large buoyancy, so that the drift ball can be more than 95% exposed to the air and less than 5% immersed in water.
[0016] Since the drift ball is prone to collisions and other phenomena during operation, the spherical shell can be made of lightweight and solid engineering plastics, or other lightweight and solid materials such as Kevlar.
[0017] The reason for the floating ball to use a spherical shape is that the sphere can most follow the main flow of the air current in the air current. Therefore, the trajectory of the sphere in the air current can represent the flow direction of the main air current.
[0018] The electronic devices in the electronic compartment can be a satellite positioning chip for determining the position of the floating ball and a radio frequency chip for sending out position signals, or simply a simple electronic oscillator and a radio frequency transmitting element.
[0019] The satellite positioning chip can accurately determine the current position of the floating ball through the satellite and send the position through the radio frequency chip. While the simple electronic oscillator only emits radio signals, and the position of the floating ball needs to be calculated by an electronic receiver set on the shore through operation. This is a traditional and ancient positioning method, but it is very effective. When there is interference in the satellite signal, this positioning can obtain the same accurate positioning.
[0020] Embodiment 2:
[0021] This embodiment is an improvement of Embodiment 1 and a refinement of Embodiment 1 regarding the radio beacon. The radio beacon described in this embodiment includes: a satellite positioning chip and a radio frequency chip.
[0022] The satellite positioning chip described in this embodiment can accurately determine the longitude and latitude where the floating ball is located and send it out through the radio frequency chip. At the same time, it can also obtain the accurate position of the floating ball through triangulation by a radio receiver set on the shore.
[0023] Embodiment 3:
[0024] This embodiment is an improvement of the above embodiment and a refinement of the above embodiment regarding the diameter of the spherical shell. The diameter of the spherical shell described in this embodiment is 210 - 230 millimeters.
[0025] The size of the spherical shell is approximately equivalent to the size of a football.
[0026] Embodiment 4:
[0027] This embodiment is a device for monitoring the water surface air current using the floating ball described in the above embodiment, including: a floating ball 01 and a radio receiver 03 installed on the shore 02, and the radio receiver is connected to a data processing device 04, as Figure 2 shown.
[0028] This embodiment uses at least two radio receivers set on the river bank and with known accurate positions. Through conventional triangulation ( Figure 2 the curve in shows triangulation), the accurate position of the floating ball can be tracked and calculated.
[0029] Figure 2Two radio receivers A and B are shown. The distance AB between the two radio receivers is known. Through directional antennas, the two radio receivers can measure the angles between the two radio receivers and the drifting ball. α and β , as Figure 2 shown, and calculate the distances of AC and BC through the angles α and β and the distance between AB, so as to accurately locate the position of the drifting ball.
[0030] The radio receiver described in this embodiment can be any electronic radio frequency receiving device capable of directional reception. The data processing device can be any electronic device with storage and computing capabilities, such as a PC, a tablet computer, a laptop computer, etc.
[0031] Finally, it should be noted that the above is only used to illustrate the technical solution of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred arrangement, those of ordinary skill in the art should understand that the technical solution of the present invention (such as the form of the radio beacon, the state of the river, the way of data processing, etc.) can be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.
Claims
1. A drifting ball for monitoring wind-driven current on the water surface, comprising: A hollow spherical shell that can be opened from the middle, characterized in that a support rod connecting the spherical shell to an electronic compartment at the center of the spherical shell is provided inside the spherical shell, a battery and a wireless beacon are provided in the electronic compartment, and the centroid of the battery coincides with the centroid of the spherical shell.
2. The floating ball according to claim 1, wherein, The wireless beacon includes: a satellite positioning chip and a radio frequency chip.
3. The floating ball according to claim 2, characterized in that, The diameter of the spherical shell is 210 to 230 millimeters.
4. An apparatus for monitoring surface wind-driven current using the drift ball according to claim 3, characterized in that, Comprising: A drift ball and a radio receiver installed on the shore, and the radio receiver is connected to a data processing device.