CN210626506U

CN210626506U - Wind direction and wind speed measuring instrument

Info

Publication number: CN210626506U
Application number: CN201921739377.3U
Authority: CN
Inventors: 李北辰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-05-26
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a wind direction anemometry appearance, include: the wind speed control device comprises a wind direction plate which can rotate along with wind and is aligned with the wind direction, a wind speed plate which is connected below the wind direction plate and can tilt and rotate a certain angle along with the wind speed, a potentiometer which is coaxially connected with the wind speed plate and rotates along with the wind speed plate at the same angle, and a microprocessor MCU which is electrically connected with the potentiometer and a display circuit thereof. The wind direction plate directly indicates the wind direction, the rotation angle of the wind speed plate is in one-to-one correspondence with the wind speed, the output voltage of the center tap of the potentiometer is in turn in correspondence with the rotation angle of the wind speed plate, a group of wind speed-voltage curves are measured under a series of standard wind speeds in advance and stored in the MCU, and the MCU reads the output voltage value of the center tap of the potentiometer in real time during use and substitutes the output voltage value into the prestored wind speed-voltage curves to calculate the current wind speed. The utility model discloses small and exquisite, reliable, the electron of being convenient for is integrated, but simultaneous measurement wind direction and wind speed.

Description

Wind direction and wind speed measuring instrument

Technical Field

The utility model relates to a meteorological measuring instrument especially relates to the measurement to wind direction and wind speed.

Background

A wind direction and wind speed measuring instrument is an instrument for measuring wind speed and wind direction in the fields of construction machinery, railways, ports, docks, power plants, meteorology, cableways, environments, greenhouses, cultivation and the like. The wind direction and wind speed measuring instrument can measure the wind direction and the wind speed of the surrounding environment in real time so as to better plan production and life.

Currently, existing wind speed measuring instruments in the world mainly comprise thermal type, differential pressure type, ultrasonic type, wind cup type and the like, but the measuring instruments are heavy and expensive, and a single instrument cannot measure wind speed and wind direction simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in: the wind direction and wind speed measuring instrument is stable, reliable, low in cost, small in size and convenient for electronic integration.

In order to solve the technical problem, the utility model discloses a merge anemoscope and wind vane wind direction anemoscope as an organic whole, it contains elements such as anemoscope, potentiometre, MCU. The wind vane follows the air current and drives the whole structure to rotate to the wind direction, and indicates the current wind direction simultaneously. The wind speed plate can receive wind power and tilt and rotate to a certain angle along with the wind speed. The wind speed plate rotation angle and wind speed namely wind power are in one-to-one correspondence, the upper end of the wind speed plate is coaxially connected with a potentiometer, the potentiometer is driven to rotate according to the same angle when the wind speed plate rotates, the output voltage of a center tap of the potentiometer can be changed through rotation of the potentiometer, the MCU in the wind direction and wind speed measuring instrument has a voltage detection function, after the overall structure size, materials, elements and the like are determined, a group of wind speed-voltage curves are measured under a series of accurate wind speeds and stored in the MCU, the MCU reads the voltage value output by the center tap of the potentiometer in real time in use and substitutes the prestored wind speed-voltage curves to calculate the current wind speed.

Drawings

FIG. 1 is a schematic diagram of a wind direction and speed measuring instrument.

Fig. 2 is a schematic structural diagram of a wind direction and wind speed measuring instrument.

Detailed Description

The utility model provides a wind speed and direction measuring apparatu, the measuring apparatu main part is a wind vane and the wind speed board that is being hung, and the wind vane can be at the horizontal direction free rotation along with the wind, drives overall structure such as wind speed board simultaneously and rotates the wind current direction.

Referring to fig. 1, a schematic diagram of a wind speed and direction measuring instrument is shown, and a main body of the measuring instrument is composed of a wind vane 1, a suspension shaft 2, a wind vane 3, a potentiometer 4, a wind vane and potentiometer rotating shaft 5, and an MCU 6. Wherein the suspension shaft 2 suspends the entire structure in the air. When the wind direction plate 1 receives wind force 7, the whole structure is driven to rotate to the wind direction, and the real-time wind direction is indicated. The wind speed plate 3 can be blown by different wind speeds, namely the wind power 7, and is tilted and rotated for a certain angle. The wind speed plate 3 drives the coaxial potentiometer 4 to rotate at the same angle, so that the output voltage of the center tap of the potentiometer 4 is changed.

Referring to fig. 1 and 2, after the overall structural dimensions, materials, components, etc. are determined, a set of wind speed-voltage data curves are measured at a series of accurate wind speeds and stored in the MCU6 in advance to a standard metering mechanism, for example: taking a sample to a national weather service or a standard detection mechanism, setting output voltage of a center tap of a potentiometer 4 at a wind speed of 0, namely a wind speed plate 3 naturally hangs down, as reference 0 voltage, and respectively measuring a change value V1 of the output voltage of the center tap of the potentiometer at a wind speed of 1, a change value V2 of the output voltage of the center tap of the potentiometer at a wind speed of 2, a change value V3 of the output voltage of the center tap of the potentiometer at a wind speed of 3, and a change value Vn of the output voltage of the center tap of the potentiometer at a wind speed of n, wherein the wind speed is 6m/s, and the V4 is 1400 mV; the wind speed is 8m/s, and V5 is 1600 mV; the wind speed 6 is 10m/s, and V6 is 1820mV.. In practical use, when the MCU6 measures a voltage value of 1500mV, and the voltage and wind speed can be approximately linearly calculated in this small interval range because the voltage and wind speed are between wind speed 4 and wind speed 5, the current wind speed can be estimated as: 6m/s + (1500-1400) (8m/s-6m/s)/(1600-1400) ═ 7m/s, and so on, the wind speed corresponding to all voltages can be calculated.

The foregoing is a detailed description of the present invention, and it should be noted that, for those skilled in the art, many modifications, extensions and decorations can be made without departing from the principle of the present design, and these modifications, extensions and decorations are also regarded as the protection scope of the present application.

Claims

1. A wind direction anemometer comprising: the wind speed plate directly indicates the wind direction, the rotation angle of the wind speed plate is in one-to-one correspondence with the wind speed, the output voltage of a center tap of the potentiometer corresponds to the rotation angle of the wind speed plate, a group of wind speed-voltage curves are measured in advance under a series of standard wind speeds and stored in the MCU, and the MCU reads the output voltage value of the center tap of the potentiometer in real time in use and substitutes the prestored wind speed-voltage curves to calculate the current wind speed.

2. The wind direction and speed measuring instrument according to claim 1, wherein: the wind direction plate is a light thin plate and is fixed on a rotating shaft, and the wind direction plate can freely rotate along with wind in the horizontal direction and directly indicate the wind blowing direction.

3. The wind direction and speed measuring instrument according to claim 1, wherein: the wind speed plate is fixed on the lower part of the wind direction plate through a rotating shaft, the wind speed plate can be blown and tilted to rotate for a certain angle by different wind speeds, and the wind speeds and the rotating angles are in one-to-one correspondence.

4. The wind direction and speed measuring instrument according to claim 1, wherein: the wind speed plate is coaxially provided with a potentiometer rotating with the wind speed plate at the same angle at the root part, and the output voltage of the center tap of the potentiometer corresponds to the rotation angle of the wind speed plate.

5. The wind direction and speed measuring instrument according to claim 1, wherein: after the structural size and the element material are determined, a standard metering mechanism is obtained in advance, a group of wind speed-voltage curves are measured under a series of accurate wind speeds and stored in an MCU (micro control unit), and the MCU is used for reading the voltage value output by a center tap of the potentiometer in real time and substituting the voltage value into the prestored wind speed-voltage curves to calculate the current wind speed.

6. The wind direction and speed measuring instrument according to claim 1, wherein: the MCU can directly display the wind speed in an LCD mode after calculating the wind speed.