CN111308120A - River surface flow velocity measuring device based on computer vision - Google Patents
River surface flow velocity measuring device based on computer vision Download PDFInfo
- Publication number
- CN111308120A CN111308120A CN202010262253.1A CN202010262253A CN111308120A CN 111308120 A CN111308120 A CN 111308120A CN 202010262253 A CN202010262253 A CN 202010262253A CN 111308120 A CN111308120 A CN 111308120A
- Authority
- CN
- China
- Prior art keywords
- flow velocity
- base
- measuring device
- computer vision
- velocity measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/04—Special adaptations of driving means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a river surface flow velocity measuring device based on computer vision, which relates to a river surface flow velocity measuring device and comprises a supporting rod and a connecting piece transversely fixed at the upper end of the supporting rod, wherein the lower end of the supporting rod is fixedly connected with a base, the base is used for being fixed on a river bank, a lead screw is transversely fixed on the connecting piece, the connecting piece is assembled with a sliding block capable of sliding back and forth along the lead screw through a lead screw thread, the lead screw is connected with a driving motor, a camera device is installed on the sliding block, the base is fixedly installed relative to the river bank through an anchoring piece, the anchoring piece comprises an anchor plate embedded underground, an anchor bar is longitudinally assembled on the anchor plate, a through hole is formed in the base corresponding to the anchor bar, part of the anchor bar extends out of the ground and penetrates through the base, and a nut is connected with.
Description
Technical Field
The invention relates to the field of river surface flow velocity measuring equipment, in particular to a river surface flow velocity measuring device based on computer vision.
Background
River surface flow velocity detection has more important meanings to water resource allocation, sewage treatment monitoring and mountain torrents, and natural disaster protection during typhoon, along with the development and progress of society, the video monitoring technology is more and more extensive in the real life application, and begin to be applied to river surface flow velocity measurement work among hydraulic engineering, when using the video monitoring technology to measure river surface flow velocity, prior art throws the buoy to the river surface with the help of unmanned aerial vehicle usually, after the buoy reaches river surface designation position, carry out a series of shootings through camera device to the buoy of surface of water, calculate the flow velocity of river surface through preset algorithm at last.
The existing camera device of the river surface flow velocity measuring device based on computer vision is fixedly installed relative to a river bank through a tower, the shooting range of the camera device is limited, the measuring position is small, and for a river surface with large width or complex environment, the flow measuring result is unrepresentative and has low accuracy only by measuring a small area of the river surface; meanwhile, the existing river surface flow velocity measuring device is poor in working environment, especially in windy weather, the stability of tower installation can be seriously affected, the camera device is caused to shake in work, and the accuracy of measured data can be influenced to a certain degree.
In combination with the above problems, it is desirable to provide a river surface flow velocity measuring apparatus based on computer vision, which can expand the river surface measurement width and is stably installed.
Disclosure of Invention
The invention provides a river surface flow velocity measuring device based on computer vision, which can enlarge the river surface measuring width and is stably installed.
The technical scheme of the invention is realized as follows: a river surface flow velocity measuring device based on computer vision comprises a supporting rod and a connecting piece transversely fixed at the upper end of the supporting rod, wherein the lower end of the supporting rod is fixedly connected with a base, the base is used for being fixed on a river bank, a lead screw is transversely fixed on the connecting piece, the connecting piece is provided with a sliding block capable of sliding back and forth along the lead screw through a lead screw thread, the lead screw is connected with a driving motor, and a camera shooting device is arranged on the sliding block;
the base passes through the relative river bank fixed mounting of anchor assembly, and anchor assembly is including pre-buried in the anchor slab in the underground, vertically is equipped with the anchor bar on the anchor slab, corresponds the anchor bar on the base and has seted up the through-hole, and anchor bar part stretches out ground and runs through the base and has the nut at base upper surface threaded connection.
Compared with the prior art, the scheme has the following beneficial effects:
(1) the measuring range of the river surface flow velocity is expanded, the accuracy of measuring the speed of a wider river surface is improved, the camera device can transversely move along the screw rod to measure the flow velocity of a plurality of different positions on the cross section of the river surface, and the obtained measuring data has higher reference.
(2) The stability of the relative bank installation of camera device has been promoted, reduces camera device because of the rocking that the installation is unstable to produce in bad weather, further guarantees measured data's accuracy, the relative base fixed mounting of bracing piece, and the base passes through anchor assembly and ground relatively fixed, under the comparatively complicated condition of bank environment, has increased the fixed stability of the relative bank of base, and then has increased the fixed stability of bracing piece and the relative bank of camera device.
On the basis of the scheme, the connecting piece comprises two panels which are arranged in a transverse parallel mode at intervals, one ends of the two panels are fixedly assembled through angle steel relative to the supporting rod, the screw rod is arranged between the two panels, and the connecting piece is provided with a guide structure which is used for guiding the sliding block along the transverse sliding of the screw rod.
On the basis of the scheme, the guide structure is further improved as follows, the guide structure comprises a through groove which is formed on any panel of the connecting piece and corresponds to the lead screw in the transverse direction and a convex block which is formed by the through groove on the sliding block, a threaded hole used for being assembled with the lead screw in a threaded mode is formed in the convex block, and the sliding block extends into the space between the two panels through the convex block to be assembled with the lead screw in a threaded mode.
On the basis of the scheme, the structure is further improved as follows, the two sides of the sliding block form C-shaped connecting grooves, and the sliding block is clamped on the panel provided with the through grooves on the connecting piece through the connecting grooves and is assembled in a sliding mode relative to the panel.
Compare in prior art this scheme's beneficial effect does: the stability of the slider relative to the sliding of the connecting piece is improved, the slider extends into the space between two panels of the connecting piece through the boss and is connected with the screw threads, and meanwhile, the connecting grooves on two sides are connected with one panel of the connecting piece in a clamped mode, so that the situation that the slider shakes due to the fact that the connecting piece is assembled unstably in the sliding process is prevented, and the accuracy of measured data is improved.
On the basis of the scheme, the camera shooting device is further improved in the following way, a steel wire rope is transversely arranged below the connecting piece, a plurality of suspension wire pulleys are assembled on the steel wire rope in a sliding mode, and a lead of the camera shooting device is uniformly fixed at the lower ends of the suspension wire pulleys in a segmented mode.
On the basis of the scheme, the steel wire rope connecting device is further improved in the following manner that angle steel is fixed below two sides of the connecting piece, and two ends of the steel wire rope are fixed through the turn buckle relative to the two angle steel.
Compare in prior art this scheme's beneficial effect does: the winding of the lead of the camera device in the process of sliding relative to the lead screw is prevented, and the normal sliding of the camera device relative to the lead screw and the normal work of the camera device are ensured.
On the basis of the scheme, the lower end of the supporting rod is fixed on the upper surface of the base through angle steel.
On the basis of the scheme, the novel support rod is further improved in the following way, the lower end of the support rod is sleeved with two U-shaped hoop parts, the upper surface of the base is anchored with an anchoring ring, and the hoop parts are connected with the anchoring ring through oblique pull steel cables.
On the basis of the scheme, the supporting rod is further improved in that the supporting rod is connected with the connecting piece through an inclined supporting rod which is obliquely arranged.
Compare in prior art this scheme's beneficial effect does: the arrangement of the hoop and the anchoring ring further increases the stability of the supporting rod relative to the base, and meanwhile, the assembly work between the supporting rod and the base is facilitated through the angle steel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a cross-sectional view taken in the direction of B-B1 in FIG. 1;
FIG. 4 is a top view of the present invention;
wherein: the device comprises a supporting rod 1, a hoop 11, a diagonal steel cable 12, a diagonal brace 13, a diagonal brace 2, a connecting piece 21, a screw rod 22, a sliding block 23, a camera device 24, a driving motor 3, a steel wire rope 31, a lead wire 32, a suspension wire pulley 4, a base 41, an anchor bar 42, an anchor plate 42, angle steel a and a river bank b.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention relates to a specific embodiment of a river surface flow velocity measuring device based on computer vision, which is shown in figures 1-3:
river surface velocity of flow measuring device based on computer vision, including the bracing piece 1 of the rectangular rod-like structure of vertical setting, the upper end of bracing piece 1 transversely stretches and is fixed with connecting piece 2, the lower extreme fixedly connected with base 4 of bracing piece 1, base 4 is fixed on river bank b.
Specifically, base 4 is isosceles trapezoid at fore-and-aft cross-section, base 4 is the rectangle in horizontal cross-section, base 4 passes through the relative bank b anchor installation of anchor assembly, anchor assembly is including pre-buried anchor slab 42 in the underground, anchor slab 42 includes rectangle or circular shape platelike structure's anchor slab 42, vertically be equipped with anchor bar 41 on the anchor slab 42, connected mode between anchor bar 41 and the anchor slab 42 includes but not limited to threaded connection and welding, the through-hole has been seted up to corresponding anchor bar 41 on base 4, anchor bar 41 part stretches out ground and runs through base 4 and has the nut at base 4 upper surface threaded connection.
Through angle steel fixed connection between base 4 and the bracing piece 1, the angle steel is provided with two, two angle steel a are connected with two sides that the bracing piece 1 is relative respectively, the staple bolt piece 11 of two "U" shapes has been cup jointed to the lower extreme of bracing piece 1, the inherent anchor ring of upper surface anchor of base 4, staple bolt piece 11 is connected through drawing steel cable 12 to one side with the anchor ring, is connected through the diagonal brace 13 that an slope set up between bracing piece 1 and the connecting piece 2.
Transversely be fixed with lead screw 21 on the connecting piece 2, lead screw 21 is on a parallel with the width direction setting of river, connecting piece 2 is equipped with slider 22 that can follow lead screw 21 reciprocating sliding through lead screw 21 screw, lead screw 21 is connected with driving motor 24 at the free end of connecting piece 2 through the connecting axle, driving motor 24 is connected with lead screw 21 transmission, in this embodiment, driving motor 24 prefers small-size servo motor, can also be connected through the shaft coupling between driving motor 24 and the lead screw 21, through the stability that increases driving motor 24 work, further increase the gliding stability of slider 22 relative lead screw 21, install camera device 23 on the slider 22.
Connecting piece 2 includes the panel that two horizontal parallel interval set up, lead screw 21 is located between two panels of connecting piece 2, two panels of connecting piece 2 all connect through angle steel a at its both ends, connecting piece 2 carries out fixed connection with the angle steel a of 1 accessible "U" shape of bracing piece, driving motor 24 passes through the bolt and installs on the angle steel a of 2 free ends of connecting piece, it transversely has seted up rectangular form logical groove to correspond lead screw 21 on arbitrary panel of connecting piece 2, it forms the lug to correspond logical groove on slider 22, set up the screw hole with lead screw 21 looks adaptation on the lug, the slider stretches into between two panels through the lug with lead screw 21 screw thread assembly, the connecting groove of slider 22 both sides formation "C" font, slider 22 is seted up on the panel that leads to the groove on the connecting piece through the connecting groove joint and is relative panel sliding.
In a preferred embodiment, the steel wire rope 3 is transversely arranged below the connecting piece 2, the steel wire rope 3 is provided with a plurality of suspension wire pulleys 32 in a sliding mode, the conducting wire 31 of the camera device 23 is uniformly fixed at the lower ends of the suspension wire pulleys 32 in a segmented mode, the lower portions of two sides of the connecting piece 2 are fixedly provided with angle steel a, two ends of the steel wire rope 3 are fixed relative to the two angle steel a through turn buckle bolts, the arrangement of the steel wire rope 3 and the suspension wire pulleys 32 further prevents the conducting wire 31 from winding when the camera device 23 moves relative to the lead screw 21, and the normal operation of the camera device 23 is effectively guaranteed.
The specific embodiment of the invention is as follows:
when the measuring device is installed, firstly, a flat ground for installing the base 4 is leveled on the river bank b, the anchoring piece is pre-embedded under the ground, the anchor bar 41 partially extends out of the ground and is assembled with the base 4 on the ground in a threaded manner, the camera device 23 is installed on the connecting piece 2 through the slide block 22, then the connecting piece 2 is assembled with the supporting rod 1, and further fixes the connecting piece 2 and the supporting rod 1 through the inclined supporting rod 13, and finally fixes the supporting rod 1 on the base 4 by using angle steel a, and further be connected bracing piece 1 and base 4 through embracing hoop spare 11 and drawing steel cable 12 to one side, measuring device assembly stability is high, and it carries out the velocity of flow measurement to a plurality of regions on the same width line of river along lead screw 21 removal to different positions through control driving motor 24 operating condition drive camera in the measurement process, has enlarged the region to river surface velocity of flow measurement, has increased measured data's accuracy nature.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The river surface flow velocity measuring device based on computer vision comprises a support rod and a connecting piece transversely fixed at the upper end of the support rod, wherein the lower end of the support rod is fixedly connected with a base which is used for being fixed on a river bank;
the base passes through the relative river bank fixed mounting of anchor assembly, and anchor assembly is including pre-buried in the anchor slab in the underground, vertically is equipped with the anchor bar on the anchor slab, corresponds the anchor bar on the base and has seted up the through-hole, and anchor bar part stretches out ground and runs through the base and has the nut at base upper surface threaded connection.
2. The computer vision-based river surface flow velocity measuring device as claimed in claim 1, wherein the connecting member comprises two panels arranged in parallel and transversely at an interval, one end of each panel is fixedly assembled with respect to the support rod through an angle steel, the screw is arranged between the two panels, and the connecting member is provided with a guide structure for guiding the sliding block to slide transversely along the screw.
3. The river surface flow velocity measuring device based on the computer vision as claimed in claim 2, wherein the guiding structure comprises a through groove transversely formed on any one panel of the connecting piece corresponding to the screw rod and a protruding block formed on the sliding block corresponding to the through groove, a threaded hole for being assembled with the screw rod is formed on the protruding block, and the sliding block extends between the two panels through the protruding block to be assembled with the screw rod.
4. The computer vision-based river surface flow velocity measuring device as claimed in claim 3, wherein the slide block is formed with C-shaped connecting grooves at both sides thereof, and the slide block is engaged with the through-grooved face plate of the connecting member through the connecting grooves and slidably assembled with respect to the face plate.
5. The computer vision-based river surface flow velocity measuring device as claimed in any one of claims 1 to 4, wherein a steel wire rope is transversely arranged below the connecting piece, a plurality of suspension wire pulleys are slidably assembled on the steel wire rope, and the conducting wires of the camera device are uniformly fixed on the lower ends of the suspension wire pulleys in a segmented manner.
6. The computer vision-based river surface flow velocity measuring device as claimed in claim 5, wherein angle steel is fixed at both side ends of the lower end surface of the connecting member, and both ends of the wire rope are fixed relative to the two angle steel by means of turn-buckle bolts.
7. The computer vision-based river surface flow velocity measuring device according to any one of claims 1 to 4, wherein the lower end of the support rod is fixed to the upper surface of the base by an angle iron.
8. The computer vision-based river surface flow velocity measuring device as claimed in any one of claims 1 to 4, wherein the lower end of the support rod is sleeved with two U-shaped hoop members, the upper surface of the base is anchored with an anchoring ring, and the hoop members and the anchoring ring are connected through a diagonal steel cable.
9. The computer vision-based river surface flow velocity measuring device according to any one of claims 1 to 4, wherein the support rod is connected to the connecting member by an obliquely arranged diagonal support rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010262253.1A CN111308120A (en) | 2020-04-06 | 2020-04-06 | River surface flow velocity measuring device based on computer vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010262253.1A CN111308120A (en) | 2020-04-06 | 2020-04-06 | River surface flow velocity measuring device based on computer vision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111308120A true CN111308120A (en) | 2020-06-19 |
Family
ID=71159194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010262253.1A Withdrawn CN111308120A (en) | 2020-04-06 | 2020-04-06 | River surface flow velocity measuring device based on computer vision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111308120A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130333463A1 (en) * | 2012-06-15 | 2013-12-19 | Yi-Jiun Liao | Automatic hydrologic parameter measuring system for river flow and the method using the same |
| CN206610344U (en) * | 2017-03-31 | 2017-11-03 | 西安科技大学 | A kind of vision measurement camera calibration device |
| CN209167340U (en) * | 2018-11-15 | 2019-07-26 | 张栋 | A kind of river flow velocity metering device of hydraulic engineering |
| CN211348310U (en) * | 2020-03-26 | 2020-08-25 | 河南安宏信息科技有限公司 | River surface flow velocity measuring device based on computer vision |
-
2020
- 2020-04-06 CN CN202010262253.1A patent/CN111308120A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130333463A1 (en) * | 2012-06-15 | 2013-12-19 | Yi-Jiun Liao | Automatic hydrologic parameter measuring system for river flow and the method using the same |
| CN206610344U (en) * | 2017-03-31 | 2017-11-03 | 西安科技大学 | A kind of vision measurement camera calibration device |
| CN209167340U (en) * | 2018-11-15 | 2019-07-26 | 张栋 | A kind of river flow velocity metering device of hydraulic engineering |
| CN211348310U (en) * | 2020-03-26 | 2020-08-25 | 河南安宏信息科技有限公司 | River surface flow velocity measuring device based on computer vision |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211348310U (en) | River surface flow velocity measuring device based on computer vision | |
| CN109577383A (en) | A kind of experimental rig and method of dynamic test suction anchor anti-pulling capacity | |
| US11891979B2 (en) | Floating wind turbine with controllable yaw position | |
| CN106602985A (en) | Novel optimum tilt angle flat single-axis photovoltaic tracking system | |
| CN111308120A (en) | River surface flow velocity measuring device based on computer vision | |
| CN115560726A (en) | Road bridge Liang Chenjiang deformation detection device | |
| CN106287117B (en) | A kind of adjustable type pumping plant machine unit support | |
| CN109489883B (en) | Low tower cable-stayed bridge cable anchoring and cable force testing device for large-size model test | |
| EP3612487A1 (en) | Method for installing or uninstalling a component of a wind turbine | |
| CN201974290U (en) | Ladder bearing capacity tester | |
| CN109733957A (en) | A kind of workshop cable automatic deploying and retracting line apparatus | |
| CN112649352A (en) | Device and method for testing salt spray corrosion resistance of steel wire in bending and stretching state | |
| CN105544414B (en) | Stay cable replacement method based on unstressed cable length | |
| CN113846891B (en) | Power grid power transmission and distribution fabricated structure and construction method | |
| CN114199167B (en) | Blade clearance monitoring system based on millimeter waves | |
| CN212482483U (en) | Prism erecting device suitable for underground conductor measurement | |
| CN214201122U (en) | Device for testing salt spray corrosion resistance of steel wire in bending and stretching state | |
| JP2003064693A (en) | Anchor reinforcement device, anchor for slope face and method for installing anchor thereon | |
| CN212968838U (en) | Mountain region high-voltage cable strides across laying device | |
| CN210854849U (en) | Elevator anti-swing detection device | |
| CN208897268U (en) | A kind of photovoltaic floating power station constant stress flexible anchoring device | |
| CN209429825U (en) | A kind of rail connecting structure on push-and-pull gate | |
| CN208309511U (en) | A kind of ocean engineering elevating tank vacation bottom | |
| CN114655872B (en) | Seawater lifting system and lifting speed control method | |
| CN212294315U (en) | Pneumatic control device for inhaul cable high-order vortex vibration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200619 |