Hand-held radar water flow velocimeter

Abstract

The embodiment of the invention provides a handheld radar water flow velocimeter, and relates to the field of water flow detection. Comprising a radar gun body and a supporting handle, and an inclination sensor and a yaw corrector are arranged in the radar gun body; a display screen is arranged at one end of the radar gun body away from emission; the supporting handle is connected to the bottom of the end, close to the display screen, of the radar gun body, the supporting handle and the radar gun body are connected through a vertical connecting structure and a flexible connecting structure, the vertical connecting structure is located in the flexible connecting structure, and the vertical connecting structure is a detachable connecting structure; the bottom of the radar gun body is provided with an integrated track and a switching structure. The integrated track is provided with a vertical connecting track and an inclined connecting track. And the switching structure is detachably connected to the vertical connecting track or the inclined connecting track. According to the invention, automatic compensation can be carried out on the measurement angle, two use modes of hand holding and support can be realized, large-range angle adjustment during support measurement is realized, and the measurement precision is improved.

Description

Technical Field

[0001] The invention relates to the field of water flow detection, in particular to a handheld radar water flow speed meter. Background Art

[0002] The radar flow meter is a flow measuring instrument that uses microwave technology. It is specially used for surface flow velocity monitoring in natural rivers, canals, culverts, pipelines and other places with fluctuating water flow. The product uses 24GHz planar microstrip radar technology and accurately extracts water flow velocity through back-end processing technology. It can realize non-contact, unmanned automatic monitoring in the fields of hydrology, water conservancy, agricultural irrigation, water supply and drainage.

[0003] Nowadays, radio wave radar flow meters have been widely used in the field of water conservancy. Since the user needs to hold the radio wave radar flow meter beside the river for detection, the support point of the handheld water flow radar flow meter is the arm. When collecting more data, it is easy to cause arm fatigue and movement, resulting in a large deviation angle between the water flow path direction and the radar beam, affecting the accuracy of the measurement data. Summary of the invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide a handheld radar water flow velocity meter that overcomes the above problems or at least partially solves the above problems.

[0005] A handheld radar water flow speed meter, comprising a radar gun body and a support handle, wherein a tilt sensor and a yaw corrector are arranged in the radar gun body, wherein the tilt sensor is used to compensate the vertical angle of the radar gun body, and the yaw corrector is used to compensate the horizontal angle of the radar gun body; a display screen is arranged at one end of the radar gun body away from the transmitting end; The support handle is connected to the bottom of one end of the radar gun body close to the display screen, and the support handle is connected to the radar gun body through a vertical connection structure and a soft connection structure, the vertical connection structure is located inside the soft connection structure, and the vertical connection structure is a detachable connection structure, the vertical connection structure is used to vertically connect the support handle and the radar gun body, and the soft connection structure is used to softly connect the support arm and the radar gun body; An integrated track and a switching structure are provided at the bottom of the radar gun body. The integrated track is provided with a vertical connecting track and an inclined connecting track. The switching structure can be detachably connected to the vertical connecting track or the inclined connecting track.

[0006] Preferably, function buttons are provided below the display screen, and the function buttons include a switch button, a menu button and a review button.

[0007] Preferably, the outer shells of the radar gun body and the support handle are made of a mixed material of ABS and polycarbonate.

[0008] Preferably, a trigger is provided at the top front end of the support handle, the trigger is electrically connected to the radar gun body, and the trigger is used to control the emission of the radar gun body.

[0009] Preferably, the handle is curved, and a silicone anti-slip sheet is embedded on the outer wall of the support handle.

[0010] Preferably, the vertical connection structure includes a buckle and a slot adapted for snap-fitting, the buckle is provided at one end of the support handle, and the slot is provided at an end of the bottom of the radar gun body opposite to the buckle.

[0011] Preferably, the soft connection structure comprises a soft connection belt, and two ends of the soft connection belt are respectively fixedly connected to the radar gun body and the outer wall of the support handle.

[0012] Preferably, one end of the buckle and the inner end wall of the slot are respectively provided with magnetic sheets that are magnetically attracted to each other.

[0013] Preferably, the vertical connecting track includes a hexagonal column and a T-shaped column that are integrally connected, the T-shaped column is connected to the bottom of the radar gun body, and the hexagonal column is connected to the bottom of the middle column of the T-shaped column; the inclined connecting track includes two trapezoidal columns, the two trapezoidal columns are respectively vertically connected to the two ends of the T-shaped column, the trapezoidal column has a hypotenuse, the hypotenuse is relatively located on the outside of the T-shaped column, and the inclination of the hypotenuse is the same as the inclination of the hypotenuse of the hexagonal column away from the T-shaped column.

[0014] Preferably, the transfer structure includes a fixed block and an elastic clamping block, the elastic clamping block is abutted against the fixed block via an elastic connection structure, and a slide groove adapted to the vertical connecting rail is formed after the fixed block and the elastic clamping block abut against each other; the fixed block is provided with a threaded connection hole, and the threaded connection hole is used to connect with the floor-standing bracket.

[0015] The present application specifically includes the following advantages: In an embodiment of the present application, a radar gun body and a support handle are provided in the radar gun body with a tilt sensor and a yaw corrector, the tilt sensor is used to perform vertical angle compensation on the radar gun body, and the yaw corrector is used to perform horizontal angle compensation on the radar gun body; a display screen is provided at the end of the radar gun body away from the transmitter; the support handle is connected to the bottom of the end of the radar gun body close to the display screen, the support handle is connected to the radar gun body through a vertical connection structure and a soft connection structure, the vertical connection structure is located inside the soft connection structure, the vertical connection structure is a detachable connection structure, the vertical connection structure is used to vertically connect the support handle and the radar gun body, and the soft connection structure is used to softly connect the support arm and the radar gun body; an integrated track and a transfer structure are provided at the bottom of the radar gun body, the integrated track is provided with a vertical connection track and an inclined connection track; the transfer structure is detachably connected to the vertical connection track or the inclined connection track. By setting a tilt sensor in the radar gun body, the radar beam can be automatically compensated for the vertical angle, and by setting a yaw corrector, the radar beam can be compensated for the horizontal angle, so that the water flow velocity measurement is accurate and the measurement data is accurate; by setting a display screen, the radar measurement data and angle data can be displayed in real time for the operator to observe; by integrating the track and the adapter structure, the radar gun body can be supported on the floor bracket, and there is no need to hold it for a long time, thereby improving the measurement stability; by connecting the support handle to the radar gun body through the vertical connection structure and the soft connection structure, the measurement can be realized in two ways: hand-held support and bracket support. When the measurement time is long, the vertical connection structure can be disassembled, and only the soft connection structure is retained. In this way, the angle of the radar gun body can be adjusted according to the tilt sensor or the yaw corrector, so that it is still parallel to the water flow direction when supported on the floor bracket, thereby improving the measurement effect and avoiding the unstable measurement angle caused by long-term hand-holding, and the large error of the measurement result; when it is necessary to hold it, the vertical connection structure can be connected to realize the vertical connection between the radar gun body and the support handle. The present application can automatically compensate for the measurement angle, realize the two modes of use of hand-held and bracket, and realize the wide range of angle adjustment during bracket measurement, thereby improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the description of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 It is a structural schematic diagram of the handheld radar water flow velocity measuring instrument of the present invention; Figure 2 is a cross-sectional view of the vertical connection structure of the present invention; Figure 3 is a cross-sectional view of the switching structure of the present invention; Figure numerals: 1. Radar gun body; 11. Display screen; 12. Switch button; 13. Menu button; 14. Review button; 15. Card slot; 2. Support handle; 21. Trigger; 22. Silicone anti-slip sheet; 23. Buckle; 231. Magnetic sheet; 3. Integrated track; 31. Hexagonal column; 32. T-shaped column; 33. Trapezoidal column; 4. Adapter structure; 41. Fixed block; 411. Threaded connection hole; 42. Clamping block; 43. Slide groove; 44. Pull rod; 45. Spring; 5. Soft connecting belt. DETAILED DESCRIPTION

[0018] In order to make the objects, features and advantages of the present application more obvious and understandable, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0019] Reference Figure 1-Figure 3 , shows a schematic diagram of the structure of a handheld radar water flow speed meter of the present invention, which may specifically include the following structures: a radar gun body 1 and a support handle 2, wherein a tilt sensor and a yaw corrector are provided in the radar gun body 1, wherein the tilt sensor is used to perform vertical angle compensation on the radar gun body 1, and the yaw corrector is used to perform horizontal angle compensation on the radar gun body 1; a display screen 11 is provided at one end of the radar gun body 1 away from the transmitting end; The support handle 2 is connected to the bottom of one end of the radar gun body 1 close to the display screen 11, and the support handle 2 is connected to the radar gun body 1 through a vertical connection structure and a soft connection structure, the vertical connection structure is located inside the soft connection structure, and the vertical connection structure is a detachable connection structure, the vertical connection structure is used to vertically connect the support handle 2 and the radar gun body 1, and the soft connection structure is used to softly connect the support arm and the radar gun body 1; An integrated track 3 and a switching structure 4 are provided at the bottom of the radar gun body 1. The integrated track 3 is provided with a vertical connecting track and an inclined connecting track; the switching structure 4 can be detachably connected to the vertical connecting track or the inclined connecting track.

[0020] In an embodiment of the present application, through a radar gun body 1 and a support handle 2, a tilt sensor and a yaw corrector are provided in the radar gun body 1, the tilt sensor is used to perform vertical angle compensation on the radar gun body 1, and the yaw corrector is used to perform horizontal angle compensation on the radar gun body 1; a display screen 11 is provided at the end of the radar gun body 1 away from the transmitter; the support handle 2 is connected to the bottom of the end of the radar gun body 1 close to the display screen 11, and the support handle 2 is connected to the radar gun body 1 through a vertical connection structure and a soft connection structure, the vertical connection structure is located inside the soft connection structure, the vertical connection structure is a detachable connection structure, the vertical connection structure is used to vertically connect the support handle 2 and the radar gun body 1, and the soft connection structure is used to softly connect the support arm and the radar gun body 1; an integrated track 3 and a transfer structure 4 are provided at the bottom of the radar gun body 1, and the integrated track 3 is provided with a vertical connection track and an inclined connection track; the transfer structure 4 is detachably connected to the vertical connection track or the inclined connection track. By setting a tilt sensor in the radar gun body 1, the vertical angle compensation of the radar beam can be automatically performed, and by setting a yaw corrector, the horizontal angle compensation of the radar beam can be performed, so that the water flow velocity measurement is accurate and the measurement data is accurate; by setting a display screen 11, the radar measurement data and angle data can be displayed in real time for the operator to observe; by integrating the track 3 and the adapter structure 4, the radar gun body 1 can be supported on the floor bracket, and there is no need to hold it for a long time, thereby improving the measurement stability; the support handle 2 is connected to the radar gun body 1 through a vertical connection structure and a soft connection structure, so that the measurement can be achieved in two ways: hand-held support and bracket support. When the measurement time is long, the vertical connection structure can be disassembled and only the soft connection structure is retained. In this way, the angle of the radar gun body 1 can be adjusted according to the tilt sensor or the yaw corrector, so that it is still parallel to the water flow direction when supported on the floor bracket, thereby improving the measurement effect and avoiding the unstable measurement angle and large error of the measurement result caused by long-term hand-holding; when hand-holding is required, the vertical connection structure is connected to achieve the vertical connection between the radar gun body 1 and the support handle 2. The present application can automatically compensate for the measurement angle, can be used in both handheld and stand modes, and can achieve a wide range of angle adjustment during stand measurement, thereby improving measurement accuracy.

[0021] Next, a handheld radar water flow velocity meter in this exemplary embodiment will be further described.

[0022] In the embodiment of the present application, the radar gun body 1 is provided with a tilt sensor and a yaw corrector, and is also provided with a controller. The display screen 11, the tilt sensor, the yaw corrector and the radar gun body 1 are all electrically connected to the controller. The tilt sensor is used to compensate the vertical angle of the radar gun body 1. Specifically, the tilt sensor is configured to automatically compensate for the vertical angle of the radar gun muzzle pointing at the target, up to 60°. When the pitch angle exceeds 60°, the display screen 11 will display "tilt"; when "tilt" appears on the display screen 11, the controller controls the radar gun not to record the speed measurement value; if the measurement is to be continued, the radar gun needs to be tilted to an angle less than 60° until the "tilt" display disappears. Through the above design, the radar gun body 1 can realize automatic compensation of the vertical cosine angle and improve the measurement accuracy.

[0023] The yaw corrector is used to perform horizontal angle compensation on the radar gun body 1. The yaw corrector adopts an instrument that can be used for yaw correction in the prior art, such as a gyroscope. Specifically, when the radar gun is pointed at a target at a horizontal angle greater than 0°, a cosine error will occur, resulting in a false reading (an angle less than 9° indicates an error of less than 1%). In order to eliminate or greatly reduce this error, the "horizontal angle compensation" option is set to the angle at which the radar gun is intended to be pointed at the target. Then, during the entire speed measurement process, align and maintain this set angle. Through the above design, the radar gun body 1 can realize automatic compensation of the horizontal cosine angle and improve the measurement accuracy.

[0024] As an example, function buttons are provided below the display screen 11, and the function buttons include a switch button 12, a menu button 13, and a review button 14. The switch button 12 can turn the radar speed gun on and off. The menu button 13 can enter the menu interface, at which time the user can change certain operation settings. Pressing the menu button 13 repeatedly can view different functions. The review button 14 can enter the review mode, and the operator can view the speed list measured previously.

[0025] In the embodiment of the present application, the support handle 2 is connected to the bottom of one end of the radar gun body 1 close to the display screen 11. The support handle 2 is connected to the radar gun body 1 through a vertical connection structure and a soft connection structure. The vertical connection structure is located inside the soft connection structure. The vertical connection structure is a detachable connection structure. The vertical connection structure is used to vertically connect the support handle 2 and the radar gun body 1. The soft connection structure is used to softly connect the support arm and the radar gun body 1. By setting the vertical connection structure, the support handle 2 and the radar gun body 1 are vertically connected, which is convenient for holding; it is set to be detachable. When the tilt angle needs to be adjusted, it is separated, and the tilt angle can be adjusted arbitrarily through the soft connection structure. It is mainly used when the radar speed measurement is continuously performed, and the radar gun body 1 is supported by a floor stand. Because the ground may be uneven and the left and right inclination is large, the vertical inclination angle of the radar gun body 1 and the water flow direction is greater than 60°, resulting in a large error in the measurement data. By adjusting the inclination angle of the radar gun body 1, the tilt sensor measures data in real time, and the display screen 11 displays it. It can be adjusted to a suitable angle to make it parallel to the water flow direction.

[0026] As an example, the vertical connection structure includes a buckle 23 and a slot 15 adapted for snap connection, the buckle 23 is provided at one end of the support handle 2, and the slot 15 is provided at the end of the bottom of the radar gun body 1 opposite to the buckle 23. The buckle 23 and the slot 15 are snapped together to facilitate the connection and separation between the radar gun body 1 and the support handle 2.

[0027] Furthermore, one end of the buckle 23 and the inner end wall of the slot 15 are respectively provided with magnetic sheets 231 that attract each other. Since the buckle 23 and the slot 15 are arranged inside the flexible connection belt 5, misalignment may occur during connection, and the magnetic attraction facilitates quick positioning during connection.

[0028] As an example, the soft connection structure includes a soft connection belt 5, and the two ends of the soft connection belt 5 are respectively fixedly connected to the radar gun body 1 and the outer wall of the support handle 2. The soft connection belt 5 can be made of silicone rubber material, so that the radar gun body 1 and the support handle 2 will not be separated when the angle is adjusted at any time. The soft connection belt 5 can also be made of highly transparent silicone rubber material to facilitate observation of the disassembly and assembly between the internal buckle 23 and the card slot 15.

[0029] As an example, the vertical connection track includes a hexagonal column 31 and a T-shaped column 32 connected in one piece, the T-shaped column 32 is connected to the bottom of the radar gun body 1, and the hexagonal column 31 is connected to the bottom of the middle column of the T-shaped column 32; the hexagonal column 31 and the T-shaped column 32 form a vertical connection track, and its irregular shape can limit the radar gun body 1 and the adapter structure 4 to a vertical state. The inclined connection track includes two trapezoidal columns 33, and the two trapezoidal columns 33 are respectively vertically connected to the two ends of the T-shaped column 32, and the trapezoidal column 33 has a hypotenuse, which is relatively located outside the T-shaped column 32, and the slope of the hypotenuse is the same as the slope of the hypotenuse of the hexagonal column 31 away from the T-shaped column 32. The two trapezoidal columns 33 are respectively arranged on both sides, and the inclination directions of the hypotenuses are opposite, but the inclination directions and inclination degrees of the hypotenuses of the opposite hexagonal columns 31 are consistent, so that after the radar gun body 1 adjusts the inclination angle, it can also be connected and fixed with the adapter structure 4 through the inclined hypotenuse.

[0030] As an example, the transition structure 4 includes a fixed block 41 and an elastic clamping block 42, and the elastic clamping block 42 is abutted against the fixed block 41 through an elastic connection structure. After the fixed block 41 and the elastic clamping block 42 are abutted, a slide groove 43 adapted to the vertical connection track is formed; the fixed block 41 is provided with a threaded connection hole 411, and the threaded connection hole 411 is used to connect with the floor bracket. When vertically connected, the slide groove 43 slides in from one end of the vertical connection track and is adapted to be connected therewith, and a vertical connection state is achieved at this time. When the angle of the radar gun body 1 needs to be adjusted, the buckle 23 and the slot 15 are disassembled, and after adjusting to a suitable angle, the fixed block 41 and the clamping block 42 are pulled apart, and the two vertical sides of the inner wall of the slide groove 43 corresponding to the T-shaped columnar body 32 are respectively clamped to the hypotenuse of one of the trapezoidal columns 33 and the hypotenuse of the hexagonal columnar body 31 opposite thereto, and are clamped to a suitable position according to the angle adjustment. When tilting in another direction, the hypotenuse of another trapezoidal columnar body 33 and the hypotenuse of the opposite hexagonal columnar body 31 can be clamped.

[0031] The elastic connection structure includes a pull rod 44 and a spring 45. The pull rod 44 is inserted through the fixed block 41 and the clamping block 42. The spring 45 is embedded in a groove opened on one side where the fixed block 41 and the clamping block 42 abut, and is sleeved on the outside of the pull rod 44. One end of the pull rod 44 is limited to one end of the spring 45, and the spring 45 can be squeezed by pulling. The elastic clamping of the fixed block 41 and the clamping block 42 is achieved through the elastic connection structure, thereby improving the clamping and fixing effect of the integrated track 3.

[0032] As an example, the shells of the radar gun body 1 and the support handle 2 are made of a mixed material of ABS and polycarbonate, which has high impact resistance.

[0033] As an example, a trigger 21 is provided at the top front end of the support handle 2 , and the trigger 21 is electrically connected to the radar gun body 1 , and the trigger 21 is used to control the emission of the radar gun body 1 .

[0034] As an example, the handle is curved, conforming to the ergonomic shape and easy to hold and grasp. The outer wall of the support handle 2 is embedded with a silicone anti-slip sheet 22 to increase the friction of holding and avoid accidental slipping.

[0035] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0036] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0037] The handheld radar water flow velocity meter provided by the present invention is introduced in detail above. The principle and implementation mode of the present invention are explained in this article by using specific examples. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A handheld radar water flow velocity meter, characterized in that: It comprises a radar gun body and a support handle, wherein a tilt sensor and a yaw corrector are arranged in the radar gun body, wherein the tilt sensor is used to compensate the vertical angle of the radar gun body, and the yaw corrector is used to compensate the horizontal angle of the radar gun body; a display screen is arranged at one end of the radar gun body away from the transmitting end; The support handle is connected to the bottom of one end of the radar gun body close to the display screen, and the support handle is connected to the radar gun body through a vertical connection structure and a soft connection structure, the vertical connection structure is located inside the soft connection structure, and the vertical connection structure is a detachable connection structure, the vertical connection structure is used to vertically connect the support handle and the radar gun body, and the soft connection structure is used to softly connect the support arm and the radar gun body; An integrated track and a switching structure are provided at the bottom of the radar gun body. The integrated track is provided with a vertical connecting track and an inclined connecting track. The switching structure can be detachably connected to the vertical connecting track or the inclined connecting track.

2. The handheld radar water flow velocity meter according to claim 1, characterized in that: Function buttons are arranged below the display screen, and the function buttons include a switch button, a menu button and a review button.

3. The handheld radar water flow velocity meter according to claim 1, characterized in that: The shells of the radar gun body and the support handle are made of a mixed material of ABS and polycarbonate.

4. The handheld radar water flow velocity meter according to claim 1, characterized in that: A trigger is provided at the top front end of the support handle, the trigger is electrically connected to the radar gun body, and the trigger is used to control the emission of the radar gun body.

5. The handheld radar water flow velocity meter according to claim 4, characterized in that: The handle is in an arc shape, and a silicone anti-slip sheet is embedded on the outer wall of the support handle.

6. The handheld radar water flow velocity meter according to claim 1, characterized in that: The vertical connection structure includes a buckle and a slot adapted for snap connection, the buckle is arranged at one end of the support handle, and the slot is arranged at an end of the bottom of the radar gun body opposite to the buckle.

7. The handheld radar water flow velocity meter according to claim 6, characterized in that: The soft connection structure comprises a soft connection belt, and two ends of the soft connection belt are respectively fixedly connected to the radar gun body and the outer wall of the support handle.

8. The handheld radar water flow velocity meter according to claim 7, characterized in that: One end of the buckle and the inner end wall of the slot are respectively provided with magnetic sheets that are magnetically attracted to each other.

9. The handheld radar water flow velocity meter according to claim 1 or 8, characterized in that: The vertical connecting track includes a hexagonal column and a T-shaped column connected in one piece, the T-shaped column is connected to the bottom of the radar gun body, and the hexagonal column is connected to the bottom of the middle column of the T-shaped column; the inclined connecting track includes two trapezoidal columns, the two trapezoidal columns are respectively vertically connected to the two ends of the T-shaped column, the trapezoidal column has a hypotenuse, the hypotenuse is relatively located outside the T-shaped column, and the inclination of the hypotenuse is the same as the inclination of the hypotenuse of the hexagonal column away from the T-shaped column.

10. The handheld radar water flow velocity meter according to claim 9, characterized in that: The transfer structure includes a fixed block and an elastic clamping block, the elastic clamping block is abutted against the fixed block through an elastic connection structure, and a sliding groove adapted to the vertical connection track is formed after the fixed block and the elastic clamping block abut against each other; the fixed block is provided with a threaded connection hole, and the threaded connection hole is used to connect with the floor bracket.

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