CN113075419A - Wind speed and direction detection device - Google Patents
Wind speed and direction detection device Download PDFInfo
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- CN113075419A CN113075419A CN202110348694.8A CN202110348694A CN113075419A CN 113075419 A CN113075419 A CN 113075419A CN 202110348694 A CN202110348694 A CN 202110348694A CN 113075419 A CN113075419 A CN 113075419A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/01—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by using swirlflowmeter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
Abstract
The invention discloses a wind speed and direction detection device, relates to the technical field of wind speed and direction detection, and aims to solve the problems of inconvenience in carrying and low detection accuracy. The wind speed and wind direction detection device comprises a device body, a wind direction rod, a direction indicator and a flow sensor, wherein a wind channel which extends along the radial direction of the device body and penetrates through the device body is arranged in the device body, and the wind channel is provided with a wind inlet and a wind outlet; the wind direction rod and the direction indicator are fixed on the device body, and the extending direction of the wind direction rod is parallel to the extending direction of the air channel; the flow sensor is arranged in the air duct.
Description
Technical Field
The invention relates to the technical field of wind speed and direction detection, in particular to a wind speed and direction detection device.
Background
In fields such as field work, individual combat, miniature weather stations and the like, the demand for small and portable wind-direction anemometers is gradually increasing.
The anemoscope is used for measuring wind speed and direction, and is usually based on mechanical principle, acoustic principle and heat transfer principle, and is a cup-type anemometer, an ultrasonic anemometer and a thermal anemometer. The wind cup type anemometer measures wind speed and wind direction by measuring the rotating speed and pointing direction of the wind cup, has a simple structure, is easy to process, is easy to generate mechanical abrasion, needs frequent maintenance, and has low sensitivity and large volume under the condition of low wind speed; the ultrasonic anemometer is used for representing wind speed and direction by measuring the transmission time of ultrasonic waves in the air, does not contain movable parts inside, has good robustness and high precision, but has large volume, high energy consumption and high price, and is not beneficial to application and popularization; the thermal anemorumbometer is used for measuring the wind speed and the wind direction based on the heat exchange between air and the sensor, has the characteristics of small volume, low cost and the like, has good application prospect, but is lack of mature and portable thermal anemorumbometer products based on the thermal sensor at present.
Disclosure of Invention
The invention aims to provide a wind speed and direction detection device which is convenient to carry and can accurately detect wind speed and direction.
In order to achieve the purpose, the invention provides a wind speed and direction detection device, which comprises a device body, a wind direction rod, a direction indicator and a flow sensor, wherein a wind channel which extends along the radial direction of the device body and penetrates through the device body is arranged in the device body, and the wind channel is provided with an air inlet and an air outlet; the wind direction rod is blown by external wind to rotate, and finally the extending direction of the wind direction rod is consistent with the external wind direction. The direction indicator indicates different directions along with the rotation of the wind direction rod. The flow sensor is used for detecting wind speed.
The flow sensor is arranged in the air duct, so that the volume of the wind speed and direction detection device can be reduced, and the wind speed in the air duct can be accurately detected; the wind direction rod and the direction indicator are both fixed on the device body, and the extending direction of the wind direction rod is parallel to the extending direction of the air channel; so, device body and direction indicator all can follow the synchronous rotation of wind direction pole, and when stall, the extending direction in extending direction of wind direction pole and the extending direction in wind channel all is unanimous with external wind direction, and external wind can be unimpeded enter into the wind channel, does benefit to flow sensor and accurately detects external wind speed.
The device body can follow the synchronous rotation of wind direction pole, and the axis of rotation of device body can be the central axis, and is crossing with the radial of device body, does benefit to the stability when the device body keeps rotating. The device body can be constructed into a cylinder, the central line of the air channel is intersected with the rotation axis of the device body, the rotation stability is good, and the cylinder is provided with the outer surface in smooth transition, so that the blowing action of external wind on the cylinder can be reduced or avoided, the rotation accuracy of the wind direction rod is reduced or avoided, and the detection accuracy of the wind speed and the wind direction is guaranteed.
The direction indicator may be constructed in various forms and may be integrated in the apparatus body and/or the wind direction pole to reduce the volume of the wind speed and direction detecting apparatus. For example, the direction indicator may be provided in the apparatus body, thereby reducing the volume of the wind speed and direction detection apparatus. Therefore, the flow sensor, the direction indicator and the air channel are all arranged in the device body, the appearance structure of the wind speed and direction detection device is simplified, and the device is convenient to carry.
Therefore, at least the air duct and the flow sensor are arranged in the device body, so that the volume of the wind speed and direction detection device is favorably reduced, and the device is convenient to carry; after the wind direction rod is blown by external wind and rotates to stop, the extending direction of the wind direction rod is consistent with the wind direction, the extending direction of the wind channel is consistent with the external wind direction, the external wind can enter the wind channel without obstacles, the flow sensor in the wind channel can accurately measure the external wind speed, and the direction indicator synchronously rotating along with the wind direction rod can accurately indicate the wind direction, so that the accurate measurement of the wind speed and the wind direction is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a perspective view of a wind speed and direction detection device provided in an embodiment of the present application;
FIG. 2 is a front view of a wind speed and direction detecting device provided in an embodiment of the present application;
FIG. 3 is a left side view of the wind speed and direction detection device provided in the embodiment of the present application;
FIG. 4 is a top view of a wind speed and direction detection device provided in the embodiments of the present application;
fig. 5 is a front view of a guide rod of the wind speed and direction detection device according to the embodiment of the present application.
Reference numerals:
1-device body, 2-wind direction pole, 21-blade, 22-connecting pole, 23-balancing weight, 24-pillar,
3-direction indicator, 4-flow sensor, 5-air channel, 6-base and 7-rotary bearing.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although various wind speed and direction devices exist in the prior art, the wind speed and direction devices are generally in a cup type and an ultrasonic type, wherein the cup type has the defects of easy mechanical abrasion, low sensitivity and large volume under the condition of low wind speed, and the ultrasonic type has the defects of large volume, high energy consumption and high price; obviously, the wind speed and direction detection device which is small in size, high in sensitivity and convenient to carry is more convenient for field operation and is more favored by field operation personnel. In recent years, thermal wind speed and direction sensors with increasingly mature technologies measure wind speed and direction based on heat exchange between air and the sensors, and with the mature development of micro-electro-mechanical systems (MEMS) technology and micro-integration technology, a favorable technical basis is provided for the miniaturization and integration of wind speed and direction detection devices; based on the wind speed and direction detection device, the wind speed and direction detection device has the advantages of being small in size, convenient to carry and high in detection sensitivity.
Referring to fig. 1, the wind speed and direction detecting device provided by the invention comprises a device body 1, a wind direction rod 2, a direction indicator 3 and a flow sensor 4, wherein an air duct 5 which extends along the radial direction of the device body 1 and penetrates through the device body 1 is arranged in the device body 1, and the air duct 5 is provided with an air inlet and an air outlet; the wind direction lever 2 is rotated by being blown by external wind, and finally the extending direction of the wind direction lever 2 coincides with the external wind direction. The direction indicator 3 indicates different directions as the wind direction lever 2 rotates. The flow sensor 4 is used to detect the wind speed. The radial direction of the device body 1 passes through the geometric center of the cross section of the device body 1 and is parallel to the cross section.
The flow sensor 4 can be arranged in the air duct 5, so that the volume of the wind speed and direction detection device can be reduced, and the wind speed in the air duct 5 can be accurately detected; the wind direction rod 2 and the direction indicator 3 can be fixed on the device body 1, and the extending direction of the wind direction rod 2 is parallel to the extending direction of the air duct 5; so, device body 1 and direction indicator 3 all can follow wind direction pole 2 synchronous rotation, and when stall, the extending direction of wind direction pole 2 and the extending direction in wind channel 5 all are unanimous with external wind direction, and external wind can be unimpeded enter into wind channel 5, do benefit to flow sensor 4 and accurately detect external wind speed.
The device body 1 can rotate synchronously along with the wind direction rod 2, and the rotating axis of the device body 1 can be the central axis and is intersected with the radial direction of the device body 1, so that the stability of the device body 1 in rotation is facilitated. By way of example, the device body 1 can be constructed as a cylinder, the central line of the air duct 5 is intersected with the rotation axis of the device body 1, the rotation stability is good, and the cylinder has a smooth transition outer surface, so that the blowing action of external wind on the cylinder can be reduced or avoided, the rotation accuracy of the wind direction rod 2 is reduced or avoided, and the detection accuracy of the wind speed and the wind direction is guaranteed. The air duct 5 extends along the radial direction of the device body 1 and penetrates through the device body 1, and the air duct 5 can be located in the middle of the device body 1, so that the volume and the weight of the two side parts of the air duct 5 of the device body 1 are the same, and the balance of the device body 1 during rotation is kept favorably.
The direction indicator 3 may be constructed in various forms and may be integrated in the apparatus body 1 and/or the wind direction stick 2 to reduce the volume of the wind speed and direction detecting apparatus. For example, the direction indicator 3 may be provided in the apparatus body 1, thereby reducing the volume of the wind speed and direction detection apparatus. Like this, flow sensor 4, direction indicator 3 and wind channel 5 all set up in device body 1, have simplified wind speed and direction detection device's appearance structure, portable.
As can be seen from the above, at least the air duct 5 and the flow sensor 4 are arranged in the device body 1, which is beneficial to reducing the volume of the wind speed and direction detection device and is convenient to carry; after the wind direction rod 2 is blown by external wind and rotates to stop, the extending direction of the wind direction rod 2 is consistent with the wind direction, the extending direction of the wind channel 5 is consistent with the external wind direction, the external wind can enter the wind channel 5 without obstacles, the flow sensor 4 in the wind channel 5 can accurately measure the external wind speed, and the wind direction can be accurately shown along with the direction indicator 3 synchronously rotating with the wind direction rod 2, so that the accurate measurement of the wind speed and the wind direction is realized.
The wind speed and direction detection device provided by the invention has the advantages that the flow sensor and the direction indicator can be manufactured by adopting the MEMS technology and are integrated with the device body 1 through a micro-assembly process, so that the wind speed and direction detection device has the advantages of small size, low cost, low power consumption, easiness in carrying and the like.
In one possible implementation, as shown in fig. 1 to 3, the inner wall of the air duct 5 has a groove to accommodate the flow sensor 4, and the flow sensing surface of the flow sensor 4 is located on the same plane as the inner wall of the air duct 5. Therefore, the condition that the flow sensor 4 protrudes out of the inner wall surface of the air duct 5 and the wind in the air duct 5 is blocked by the flow sensor 4 to generate vortex can be avoided, and the wind speed detection precision is improved. The cross section of the air duct 5 may be circular or polygonal, but in the extending direction of the air duct 5, the inner wall portion of the air duct 5 corresponding to the flow sensing surface is a plane and is located on the same plane as the flow sensing surface, so as to avoid the influence on the flow of the air when the inner wall portion has a protrusion or a pit, which is not beneficial to the accurate sensing of the wind speed by the flow sensing surface located on the inner wall portion. The same plane of the flow sensing surface and the inner wall can be a horizontal plane or an inclined plane. The groove arranged on the inner wall of the air duct 5 and the flow sensor 4 can be matched in shape, so that a gap between the groove and the flow sensor 4 is avoided, and the wind speed detection precision is not influenced. The flow sensor 4 can also be integrated in the device body 1 by utilizing a micro-integration technology, and only the flow sensing surface is exposed and is positioned on the same plane with the inner wall of the air duct 5.
In a possible implementation manner, referring to fig. 1 to 3, in a direction from the air inlet to the air outlet, the air duct 5 includes a reducing section and an equal-diameter section, the area of the cross section of the reducing section is gradually reduced, and the flow sensor 4 is disposed at the equal-diameter section. Therefore, the inlet of the air duct 5 is large, the outlet of the air duct is small, the air entering the air duct 5 can be accelerated, and especially when the external air speed is low, the air speed detection sensitivity can be improved through the acceleration effect. After the variable-diameter section is accelerated, the wind enters the equal-diameter section, the speed is stable, and the flow sensor 4 located in the equal-diameter section can accurately detect the wind speed.
The flow sensor 4 can convert the wind speed signal into an electric signal, the conditioning circuit can calculate the external real wind speed by using a calibration algorithm according to the received electric signal, and the flow sensor 4 can be provided with a radio frequency module and wirelessly connected with various terminals such as a mobile phone and the like so as to send the calculated real wind speed to the terminal. The wireless connection is used for replacing an electric wire or a conducting wire, so that the structure of the wind speed and direction detection device is simplified, and the device is convenient to carry. There are various air duct structures with large inlets and small outlets, and for each air duct structure, a calibration algorithm can be obtained through a calibration circuit, which is well known to those skilled in the art and will not be described in detail herein.
For example, the flow sensor can be a micro thermal flowmeter based on the MEMS technology, the flowmeter substrate material can be ceramic, quartz, silicon, etc. to improve the robustness of the flow sensor, and the flowmeter is manufactured by the MEMS technology to realize the miniaturization of the sensor volume; and the flow sensor does not need field calibration and is convenient to use.
The minimum cross section of the variable-diameter section is the same as that of the constant-diameter section, and the variable-diameter section and the constant-diameter section can be in smooth transition connection so as to reduce the fluctuation of wind as much as possible. For example, the cross sections of the constant diameter section and the variable diameter section can be rectangular, one inner wall of the variable diameter section can be inclined relative to the constant diameter section to gradually reduce the area of the cross section of the variable diameter section and play a role in accelerating the wind speed, and the inclined inner wall and the inner wall corresponding to the constant diameter section can be connected together in a fillet transition mode.
In a possible implementation, referring to fig. 1 and 2, the wind direction rod 2 comprises a blade 21 and a connecting rod 22, the blade 21 is connected to one end of the connecting rod 22, the connecting rod 22 is fixedly connected to the device body 1, and the blade 21 and the wind outlet are located on the same side of the rotation axis of the device body 1. The extending directions of the blades 21 and the wind lever 2 are parallel to the extending direction of the wind tunnel 5. The blades 21 are used as wind vanes, and the whole wind direction rod 2 is driven to rotate under the action of wind force, and when the extending direction of the blades 21 is consistent with the wind direction, the blades are kept at a stable position. Because the extending direction of the blades 21 is the same as that of the air duct 5, and the device body 1 rotates synchronously with the wind direction rod 2, after the wind direction rod 2 is kept at a stable position, the blades 21 and the air outlets of the air duct 5 are both positioned at the downstream of the wind direction and at the same side of the rotating axis of the device body 1, and outside air enters the air duct 5 from the air inlet.
In order to make the rotation axis of the wind direction rod 2 coincide with the rotation axis of the apparatus body 1, so that the wind direction rod 2 and the apparatus body 1 can stably rotate, referring to fig. 1 and 2, the wind direction rod 2 may further include a pillar 24 and a weight 23, the weight 23 is connected to the other end of the connecting rod 22, the connecting rod 22 is connected to the apparatus body 1 through the pillar 24, and the central axis of the pillar 24 may coincide with the rotation axis of the apparatus body 1. Therefore, the balance and stability of the rotation of the connecting rod 22 and the device body 1 are better, and the detection accuracy is improved. The apparatus body 1 may be constructed as a regular cylinder such as a cylinder, so that the central axis thereof may be a rotation axis, facilitating the central axis of the pillar 24 to coincide with the rotation axis of the apparatus body 1. Blade 21 and balancing weight 23 are connected respectively at the both ends of connecting rod 22, pillar 24 is located between blade 21 and the balancing weight 23, balancing weight 23's effect is in order to make the focus of wind direction pole 2 be located pillar 24, can with the axis coincidence of pillar 24, like this, the central axis of pillar 24 is coaxial with the axis of rotation of device body 1, and the focus of wind direction pole 2 is located the central axis of pillar 24, do benefit to the balanced nature and the stability of rotation of wind direction pole 2 and device body 1 more.
For example, the weight block 23 may be made of a material with a high density, so as to reduce the volume of the weight block 23 and reduce the adverse effect on the wind direction indication accuracy of the wind direction rod 2.
The rotation of the wind direction rod 2 is realized by pushing wind power and overcoming the static friction force of rotation, and the acting force on the blades 21 is small when the external wind speed is small, so that the accuracy of the rotation position of the wind direction rod 2 is reduced, and the accuracy of wind direction detection is also reduced. Therefore, at least the length of the part of the connecting rod 22 between the blade 21 and the strut 24 can be adjusted, which is equivalent to lengthening or shortening the moment arm between the blade 21 and the strut 24, so that when the wind speed is low, the moment arm is lengthened, the accuracy of the rotating position of the wind direction rod 2 can be improved, and the accuracy of wind direction detection is further improved; similarly, when the wind speed is high, the moment arm can be shortened, and the accuracy of the rotating position of the wind direction rod 2 is improved.
In a possible embodiment, as shown in fig. 4 and 5, the connecting rod 22 may include a base section and an elongated section, the elongated section is slidably connected to one end of the base section in a locking manner along a radial direction of the apparatus body 1, the blade 21 is connected to one end of the elongated section far away from the base section, the pillar 24 is connected between the apparatus body 1 and the base section, and the weight 23 is detachably connected to the other end of the base section. In this way, the elongate section can be moved radially closer to or further from the base section along the device body 1, thereby enabling the distance between the blade 21 and the strut 24 to be adjustable. When the distance adjustment between the blade 21 and the strut 24 is completed, the relative position between the extension and the base section is locked, so that the length of the connecting rod 22 is kept stable. When it is necessary to house the wind speed and direction detecting device, the distance between the blades 21 and the struts 24 can be adjusted to a minimum to reduce the occupied space. Through the arrangement of detachable connection, after the distance between the blade 21 and the pillar 24 is adjusted, the counterweight 23 with different mass can be replaced, so that the center of the wind direction rod 2 is positioned on the pillar 24 and can also be positioned on the central axis of the pillar 24.
For example, the connecting rod 22 may include at least two casing stages, for example, a first casing stage, a second casing stage, the first casing stage may be used as a base section, the pillar 24 may be connected to the first casing stage, the second casing stage may be used as an extension section, the blade 21 is connected to the second casing stage, the first casing stage is sleeved outside the second casing stage, and the first casing stage and the second casing stage are slidably connected in a lockable manner, and the locking position may be multiple or may be locked steplessly, so that the second casing stage can extend out of the first casing stage by different lengths, and the blade 21 and the pillar 24 may have various distances, and a suitable distance is selected according to the external wind speed. Of course, the connecting rod 22 may comprise three or even more stages of bushings, and as shown with reference to fig. 5, the first stage bushing, which serves as a foundation section, may be connected to both the strut 24 and the counterweight 23, and the other bushings, in turn, may be lockably slidably connected between the foundation section and the blade 21.
In a possible embodiment, the distance between the pillar 24 and the blade 21 and the distance between the pillar 24 and the counterweight 23 can be adjusted, and when the distance between the pillar 24 and the blade 21 is adjusted, the distance between the pillar 24 and the counterweight 23 can be adjusted at the same time, so that the center of gravity of the wind direction rod 2 is always located on the pillar 24 or on the central axis of the pillar 24. Thus, when the wind speed and direction detection device needs to be stored, the distance between the blade 21 and the support column 24 can be adjusted to be minimum, and the distance between the counterweight 23 and the support column 24 can also be adjusted to be minimum, so that the occupied space is reduced. In this case, the connecting rod 22 may also be configured as a sleeve structure including a base sleeve in the middle and a first-stage sleeve and a second-stage sleeve lockably slidably connected to both ends of the base sleeve, respectively, the base sleeve is sleeved outside the first-stage sleeve and the second-stage sleeve, one of the blade 21 and the weight block 23 is connected to the first sleeve, and the other is connected to the second sleeve, thereby achieving the adjustable distance between the two and the pillar 24. Of course, there may be at least two sleeves that are sequentially lockably slidably connected between the blade 21 and the base sleeve, or there may be at least two sleeves that are sequentially lockably slidably connected between the counterweight 23 and the base sleeve, and the disclosure is not limited thereto.
For example, the locking structure between the sleeves may be in various forms, for example, the locking structure may be a locking structure of a telescopic umbrella rod, or the sleeves may be provided with a plurality of positioning holes, and when the positioning holes on two adjacent sleeves are overlapped, the two adjacent sleeves may be fixed by passing the positioning pin through the two overlapped positioning holes.
In a possible embodiment, the connecting rod 22 can also be configured as a folding rod structure, the length adjustment being achieved by unfolding or folding the folding rod, which can be provided between the blade 21 and the pillar 24, between the counterweight 23 and the pillar 24.
In a possible implementation manner, referring to fig. 1 and 2, the direction indicator 3 may be an electronic compass, and the electronic compass may be disposed in the device body 1, so as to reduce the volume of the wind speed and direction detection device. The axis of rotation of wind direction pole 2 and the axis of rotation coincidence of device body 1, electronic compass follow wind direction pole 2 synchronous rotations, and the center of electronic compass can coincide with the axis of rotation of device body 1, and this does benefit to electronic compass and obtains accurate turned angle to calculate the wind direction according to the turned angle. The electronic compass can also be provided with a radio frequency module so as to realize wireless connection with terminals such as a mobile phone and the like, and the terminal can obtain the wind direction detected by the electronic compass.
For example, referring to fig. 1 to 2, an electronic compass may be integrated in the device body 1 by using a micro-integration technology, so as to simplify the external structure of the wind speed and direction detection device and facilitate carrying.
As an example, the chip in the electronic compass may be a small-sized chip implemented by a micro-integration process through a MEMS triaxial magnetic sensor and a MEMS triaxial acceleration sensor. The three-axis magnetic sensor realizes direction judgment based on the earth geomagnetic field, and the three-axis accelerometer realizes compass posture adjustment based on the gravity effect, so that the accuracy of direction detection is improved, the field calibration is not needed, and the use is convenient.
In a possible implementation manner, the wind speed and direction detection device can comprise a base 6, and the device body 1 is rotatably connected to the base 6. When the device is used, the base 6 is fixed, the wind direction rod 2 is blown by outside wind, and the wind direction rod 2 drives the device body 1 to rotate synchronously.
In a possible embodiment, the wind speed and direction detection device further comprises a rotating bearing 7, the device body 1 is fixedly connected to the outer ring of the rotating bearing 7, and the base 6 is fixedly connected to the inner ring of the rotating bearing 7. Thereby achieving the rotatable movement of the apparatus body 1. The center axis of the apparatus body 1 may be coaxial with the center axis of the rotary bearing 7, which may improve the rotational stability of the apparatus body 1.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A wind speed and direction detection device is characterized by comprising a device body, a wind direction rod, a direction indicator and a flow sensor,
an air duct which extends along the radial direction of the device body and penetrates through the device body is arranged in the device body, and the air duct is provided with an air inlet and an air outlet;
the wind direction rod and the direction indicator are fixed on the device body, and the extending direction of the wind direction rod is parallel to the extending direction of the air duct; the flow sensor is disposed in the air duct.
2. The wind speed and direction detection device of claim 1, wherein the inner wall of the wind channel has a recess to accommodate the flow sensor, and the flow sensing surface of the flow sensor is located on the same plane as the inner wall of the wind channel.
3. The wind speed and direction detecting device according to claim 1, wherein the wind channel includes a reducing section and an equal diameter section along a direction from the wind inlet to the wind outlet, and the area of the cross section of the reducing section is gradually reduced, and the flow sensor is disposed on the equal diameter section.
4. The wind speed and direction detecting device according to claim 1, wherein the wind direction lever includes a blade and a connecting rod, the blade is connected to one end of the connecting rod, the connecting rod is fixedly connected to the device body, and the blade and the wind outlet are located on the same side of the rotation axis of the device body.
5. The wind speed and direction detecting device according to claim 4, wherein the wind direction lever further comprises a pillar and a weight block, the weight block is connected to the other end of the connecting rod, the connecting rod is connected to the device body through the pillar, and the central axis of the pillar coincides with the rotation axis of the device body.
6. Wind speed and direction detection device according to claim 5, characterized in that at least the part of said connection rod between said blade and said post is adjustable in length.
7. The anemometry apparatus of claim 6, wherein the connection rod comprises a base section and an elongated section, the elongated section is slidably connected to an end of the base section in a locking manner along a radial direction of the apparatus body, the blade is connected to an end of the elongated section far away from the base section,
the pillar is connected the device body with between the basis section, balancing weight detachably connect in the other end of basis section.
8. The wind speed and direction detection device according to any one of claims 1 to 7, wherein the direction indicator is an electronic compass, and a center of the electronic compass coincides with a rotation axis of the device body.
9. The wind speed and direction detecting device according to any one of claims 1 to 7, further comprising a base, wherein the device body is rotatably connected to the base.
10. The wind speed and direction detection device according to claim 9, wherein the wind speed and direction detection device further comprises a rotary bearing, the device body is fixedly connected to an outer ring of the rotary bearing, and the base is fixedly connected to an inner ring of the rotary bearing.
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