Wireless wind speed sensor

Abstract

The wireless wind speed sensor comprises a wind cup and a base, the wind cup is located on the base, the wind cup is connected with a rotating shaft through a rotating arm, a shaft hole is formed in the top end of the base, the rotating shaft penetrates through the shaft hole and extends into the base, a charging circuit is installed in the base, and the charging circuit is connected with the rotating shaft. A charging circuit is arranged in the base, a plurality of power generation coils are installed on the charging circuit, a permanent magnet is installed at the tail end of the rotating shaft, the power generation coils and the permanent magnet are oppositely arranged, a control circuit is further arranged in the base, and the charging circuit is connected with the control circuit through a cable. Wherein the control circuit comprises a measuring module, a main control module, a wireless transmission module and a rechargeable battery. The self-generating and self-supplying technology is adopted, the device is suitable for wind speed measurement on occasions where cables are inconvenient to arrange and installation space is limited, and the maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to a wind speed sensor, in particular to a wireless wind speed sensor. Background Art

[0002] Wind speed sensors continuously measure wind speed and are widely used in fields such as meteorology, agriculture, and engineering machinery. Based on their measurement principle, they can be categorized as mechanical, thermal, pitot, and ultrasonic wind speed sensors. Existing wind speed sensors typically use wired power or a combination of solar panels and rechargeable batteries. Solar panel and rechargeable battery solutions are generally expensive, susceptible to weather effects, increase maintenance costs, and require a relatively large space for installation, making them unsuitable for installation in space-constrained locations. Utility Model Content

[0003] In view of the defects of the existing technology, the present invention provides a wireless wind speed sensor.

[0004] A wireless wind speed sensor includes a wind cup and a base, wherein the wind cup is located on the base and is connected to a rotating shaft via a rotary arm. An axial hole is provided at the top of the base, and the rotating shaft extends into the base through the axial hole. A charging circuit is installed in the base, and a plurality of generating coils are installed on the charging circuit. A permanent magnet is installed at the end of the rotating shaft, and the generating coil is arranged opposite to the permanent magnet. A control circuit is also provided in the base, and the charging circuit is connected to the control circuit via a cable, wherein the control circuit includes a measurement module, a main control module, a wireless transmission module, and a rechargeable battery.

[0005] Optionally, a bushing for accommodating the rotating shaft is provided in the shaft hole; a sealing sleeve is provided at one end of the bushing, and a compression spring is provided at the other end, and the rotating shaft passes through the sealing sleeve, bushing and compression spring in sequence to enter the base; wherein the swing arm is horizontally arranged, and the rotating shaft is located vertically in the base; the generating coil is circumferentially arranged around the permanent magnet; the rechargeable battery is respectively connected to the measuring module, the main control module and the wireless transmission module to supply power to each module; the measuring module, the main control module and the wireless transmission module are connected in sequence, and the measuring module sends the measured wind speed value to the main control module, and the main control module sends the wind speed value through the wireless transmission module; the charging circuit is also respectively connected to the measuring module and the rechargeable battery; the measuring module detects the current wind speed by measuring the voltage or current output by the charging circuit; the sensor adopts an intermittent working mode.

[0006] The beneficial effects of this new technology are as follows: To address these problems, the present invention proposes a new wireless wind speed sensor. This new wireless wind speed sensor uses self-generating and self-powering technology, making it suitable for measuring wind speed in places where cabling is inconvenient and installation space is limited. It has low maintenance costs and uses wireless transmission technology, which has good adaptability and facilitates wind speed transmission and measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural diagram of a wireless wind speed sensor;

[0008] Figure 2 This is the circuit schematic diagram of the wireless wind speed sensor. DETAILED DESCRIPTION

[0009] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings, so that the above-mentioned and other objects, features, and advantages of the present invention will become more apparent. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; emphasis is placed on illustrating the subject matter of the present invention.

[0010] See Figure 1 The new wireless wind speed sensor includes a wind cup 1 and a base 2. The wind cup 1 is located on the base 2. The wind cup 1 is connected to the rotating shaft 10 through a rotary arm 11. The rotary arm 11 is horizontally arranged and the rotating shaft 10 is vertically arranged in the base 2. There can be multiple wind cups 1, such as 2, 3, etc. The multiple wind cups 1 are evenly distributed around the rotating shaft 10. Under the action of wind force, the wind cup 1 can drive the rotating shaft 10 to rotate through the rotary arm 11.

[0011] The top of the base 2 is provided with an axial hole, in which a bushing 13 is installed. The rotating shaft 10 passes through the bushing 13 and extends into the interior of the base 2. A sealing sleeve 12 can be provided at one end of the bushing 13. The sealing sleeve 12 can be made of a material such as rubber. The sealing sleeve 12 can prevent dust and the like from entering the base 2. The other end of the bushing 13 is provided with a compression spring 14. The rotating shaft 10 passes through the sealing sleeve 12, bushing 13, and compression spring 14 in sequence to enter the base 2. Furthermore, a protective sleeve 15 can be provided in the base 2. The protective sleeve 15 is sleeved on the rotating shaft 10 to prevent the rotating shaft 10 from corrosion.

[0012] A charging circuit 7 is installed in the base 2. The charging circuit 7 can be composed of a PCB board. A plurality of generating coils 9 are installed on the charging circuit 7. A permanent magnet 8 is installed at the end of the rotating shaft 10. The generating coils 9 are arranged opposite to the permanent magnet 8, so that when the permanent magnet 8 rotates, corresponding voltage and current can be generated in the generating coils 9. For example, the generating coils 9 can be arranged circumferentially around the permanent magnet 8.

[0013] See Figure 2 The base 2 also houses a control circuit. A charging circuit 7 is connected to the control circuit via a cable. The control circuit includes a measurement module 3, a main control module 5, a wireless transmission module 6, and a rechargeable battery 4. The rechargeable battery 4 is connected to each of the three modules, providing power. The three modules are connected in sequence. The measurement module 3 transmits the measured wind speed to the main control module 5, which then transmits the wind speed value via the wireless transmission module 6.

[0014] The charging circuit 7 is also connected to the measuring module 3 and the rechargeable battery 4 respectively. The electric energy generated by the charging circuit 7 is used to charge the rechargeable battery 4 on the one hand, and on the other hand, the measuring module 3 can detect the current wind speed by measuring the output voltage or current of the charging circuit 7.

[0015] During operation, under the action of wind force, the wind cup 1 drives the rotating shaft 10 to rotate through the swing arm 11, and the permanent magnet 8 at the bottom end of the rotating shaft 10 rotates. When the permanent magnet 8 rotates, a voltage and current that changes approximately in a sinusoidal manner will be generated in the generating coil 9. As the rotation speed of the permanent magnet 8 changes, the voltage and current generated in the generating coil 9 will also be different. When the wind speed is large and the rotation speed of the permanent magnet 8 is high, the charging circuit 7 will output a higher voltage and current. Conversely, when the wind speed is small, the charging circuit 7 will output a lower voltage and current. The measuring module 3 can calculate the current wind speed value by measuring the voltage and current value output by the charging circuit 7.

[0016] Furthermore, the present invention can adopt an intermittent working mode. In the dormant stage, the main control module 5 will turn off the power of the wireless transmission module 6 and the measuring module 3, and the main control module 5 will enter a low power consumption state. In the normal working stage, the main control module 5 will restore the normal power supply of the measuring module 3 and the wireless transmission module 6. The measuring module 3 measures the current signal generated in the coil and transmits it to the main control module 5 after processing. The main control module 5 calculates the current wind cup speed, and obtains the current wind speed through the continuous function relationship between the wind cup speed and the wind speed. Finally, the measurement data is sent to the receiving end in the control room through the wireless transmission module 6.

[0017] This new wireless wind speed sensor uses self-generating and self-powering technology and is suitable for measuring wind speed in places where it is inconvenient to lay cables and the installation space is limited. It has low maintenance costs and uses wireless transmission technology, which has good adaptability and facilitates the transmission and measurement of wind speed.

[0018] In the above description, many specific details are set forth in order to fully understand the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person skilled in the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the present invention without departing from the scope of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the present invention is still within the scope of protection of the present invention.

Claims

1. A wireless wind speed sensor, characterized in that: The invention comprises a wind cup and a base, wherein the wind cup is located on the base and is connected to the rotating shaft through a rotary arm. An axial hole is provided at the top of the base, and the rotating shaft extends into the interior of the base through the axial hole. A charging circuit is installed in the base, and a plurality of generating coils are installed on the charging circuit. A permanent magnet is installed at the end of the rotating shaft, and the generating coil and the permanent magnet are arranged opposite to each other. A control circuit is also provided in the base, and the charging circuit is connected to the control circuit through a cable, wherein the control circuit comprises a measurement module, a main control module, a wireless transmission module and a rechargeable battery.

2. The wireless wind speed sensor according to claim 1, characterized in that: A bushing for accommodating the rotating shaft is arranged in the shaft hole.

3. The wireless wind speed sensor according to claim 2, characterized in that: A sealing sleeve is provided at one end of the bushing, and a compression spring is provided at the other end. The rotating shaft passes through the sealing sleeve, the bushing and the compression spring in sequence and enters the base.

4. The wireless wind speed sensor according to claim 1, wherein: The rotary arm is arranged horizontally, and the rotating shaft is arranged vertically inside the base.

5. The wireless wind speed sensor according to claim 1, characterized in that: The power generation coil is circumferentially arranged around the permanent magnet.

6. The wireless wind speed sensor according to claim 1, characterized in that: The rechargeable batteries are respectively connected to the measurement module, the main control module and the wireless transmission module to provide power for each module.

7. The wireless wind speed sensor according to claim 1, characterized in that: The measuring module, the main control module and the wireless transmission module are connected in sequence. The measuring module sends the measured wind speed value to the main control module, and the main control module sends the wind speed value through the wireless transmission module.

8. The wireless wind speed sensor according to claim 7, characterized in that: The charging circuit is also connected to the measuring module and the rechargeable battery respectively.

9. The wireless wind speed sensor according to claim 8, characterized in that: The measuring module detects the current wind speed by measuring the voltage or current output by the charging circuit.

10. The wireless wind speed sensor according to claim 1, wherein: The sensor adopts an intermittent working mode.

Images