阅读说明：本技术 一种渠道水流量在线测量装置 (Online measuring device for water flow of channel ) 是由 曲树国 沈东峰 宋秋英 盛雷 燕永存 董孝忠 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种渠道水流量在线测量装置,包括矩形框,其特征是：包括矩形框,所述矩形框上侧固定连接滑槽板下侧,所述滑槽板设有对称的滑槽一、滑槽二、滑槽三、滑槽四和滑槽五,两个所述滑槽一、两个所述滑槽二、两个所述滑槽三、两个所述滑槽四和两个所述滑槽五关于所述滑槽板的横向中线对称,两个所述滑槽一、两个所述滑槽二、两个所述滑槽三、两个所述滑槽四和两个所述滑槽五内分别设有滑柱。本发明涉及水流量测量设备领域,具体地讲,涉及一种渠道水流量在线测量装置。本装置通过多测杆同时测量,实现河道多垂线多断面实时在线测量,测量数据更全面,测流精度更高,数据更准确。(The invention discloses an online channel water flow measuring device, which comprises a rectangular frame and is characterized in that: including the rectangle frame, rectangle frame upside fixed connection chute board downside, the chute board is equipped with spout one, spout two, spout three, spout four and spout five of symmetry, two spout one, two spout two, two spout three, two spout four and two spout five about the horizontal central line symmetry of chute board, two spout one, two spout two, two spout three, two spout four and two are equipped with the traveller in the spout five respectively. The invention relates to the field of water flow measuring equipment, in particular to an online channel water flow measuring device. This device is through many measuring arms simultaneous measurement, realizes the real-time online measurement of many plumbs of river course many sections, and measured data is more comprehensive, and the precision of flow measurement is higher, and data is more accurate.)

1. The utility model provides an online measuring device of channel discharge, includes rectangle frame (2), characterized by:

the upper side of the rectangular frame (2) is fixedly connected with the lower side of a chute plate (1), the chute plate (1) is provided with a first chute (6), a second chute (7), a third chute (8), a fourth chute (9) and a fifth chute (10) which are symmetrical, the first chute (6), the second chute (7), the third chute (8), the fourth chute (9) and the fifth chute (10) are symmetrical about the transverse central line of the chute plate (1), the first chute (6), the second chute (7), the third chute (8), the fourth chute (9) and the fifth chute (10) are respectively provided with a sliding column (11), the lower end of each sliding column (11) is fixedly connected with the middle part of the upper side of the corresponding square block (21), and a first square rod (36) penetrates through a group of square blocks (21), two ends of the first square rod (36) are fixedly connected with T-shaped sliding blocks (35) respectively, the two T-shaped sliding blocks (35) are arranged in corresponding T-shaped sliding grooves (34) respectively, and the two T-shaped sliding grooves (34) are arranged on two opposite sides of the rectangular frame (2) respectively;

the lower sides of the two groups of return blocks (21) are respectively fixed with a mounting block (28), a round shaft (29) is movably connected in each mounting block (28), a square hole (38) is formed in the middle of each round shaft (29), a square rod II (31) penetrates through the square hole (38), two ends of each square rod II (31) are respectively connected to the middle of each mounting plate (33) in a bearing mode, the two mounting plates (33) are respectively and fixedly connected to two ends of the lower side of the square rod I (36), one side of one mounting plate (33) is fixedly connected with a square rod II driving motor (32), and an output shaft of the driving motor (32) is fixedly connected with one end of each square rod II (31);

every installation piece (28) downside is equipped with logical groove (30), and every measuring staff (22) upper end is passed respectively and is corresponded it is corresponding to cross logical groove (30) fixed connection round axle (29) one side, every measuring staff (22) one side respectively a set of water velocity of flow measuring sensor (24) of evenly arranging of fixed connection, every measuring staff (22) opposite side respectively a set of water perception sensor (23) of evenly arranging of fixed connection, every measuring staff (22) lower extreme difference fixedly connected with measuring staff surveys end sensor (25).

2. The device for on-line measurement of channel water flow rate as claimed in claim 1, wherein: the middle parts of the other two opposite sides of the rectangular frame (2) are respectively in bearing connection with one end of a first screw rod (20), the first screw rod (20) is in threaded connection with the middle part of a first square rod (36), the end part of one end of the first screw rod (20) is fixedly connected with an output shaft of a motor (5), and the motor (5) is fixedly connected to one side of the rectangular frame (2).

3. The device for on-line measurement of channel water flow rate as claimed in claim 1, wherein: the middle part of the upper side of the chute plate (1) is fixedly connected with a bearing seat (4), a middle bearing of a reverse lead screw (3) is connected into the bearing seat (4), two ends of the reverse lead screw (3) are respectively in threaded connection with an inner thread block (37), and two sides of the inner thread block (37) are respectively hinged with one end of a connecting rod (18).

4. The device for on-line measurement of channel water flow rate as claimed in claim 3, wherein: every the other end of connecting rod (18) is hinged at the montant middle part of Z shape bracing piece (12) respectively, rectangle frame (2) downside four corners is hinged corresponding respectively the one end of Z shape bracing piece (12), the other end of Z shape bracing piece (12) is threaded connection lead screw two (15) respectively, every the middle part of square board (14) is connected to the lower extreme bearing of lead screw two (15).

5. The device for on-line measurement of channel water flow rate as claimed in claim 3, wherein: and two sections of threads with opposite spiral directions are arranged on the reverse lead screw (3), and one end of the reverse lead screw (3) is fixedly connected to the middle part of the first rotating disc (17).

6. The device for on-line measurement of channel water flow rate as claimed in claim 4, wherein: the lower side of each square plate (14) is fixedly connected with a group of ground drilling nails (13) respectively, and the upper end of each second lead screw (15) is fixedly connected to the middle of each second rotary table (16) respectively.

7. The device for on-line measurement of channel water flow rate as claimed in claim 1, wherein: and hoisting rings (19) are respectively and fixedly connected to four corners of the upper side of the chute plate (1).

8. The device for on-line measurement of channel water flow rate as claimed in claim 1, wherein: the distance between the adjacent positions of the first sliding groove (6), the second sliding groove (7), the third sliding groove (8), the fourth sliding groove (9) and the fifth sliding groove (10) is equal.

Technical Field

The invention relates to the field of water flow measuring equipment, in particular to an online channel water flow measuring device.

Background

At present, the flow rate measurement of open channels mostly adopts a flow velocity area method, a standard section method, a channel system building method and a weir trough method, wherein the standard section method, the channel system building method and the weir trough method have the problems of low measurement precision and the like because the flow calculation is carried out by utilizing the hydraulic buildings. In addition, online flow measurement is mostly fixed on a channel bank slope, only single-measurement-line flow measurement can be realized, and the flow velocity and the appearance of the whole channel cannot be reflected; the radar type mostly adopts a surface radar flow velocity meter to measure the flow velocity of one point or a plurality of points, the surface flow velocity has larger difference with the flow velocity of the bottom of a channel, the middle of the channel and the side slope, and the usability of the data is poorer; the rotor type flow velocity meter adopts a mechanical principle, has the problems of easy sundries hanging, mechanical abrasion and the like in the measuring process, and is not suitable for the real-time online flow measurement application of an open channel. In addition, due to the siltation of the open channel, the water depth needs to be considered separately, and other engineering measures need to be added. And a flow measurement truss is constructed partially, and a navigation type flow measurement mode is adopted, so that the problems of long measurement time, discontinuous flow measurement, incapability of real-time online flow measurement and the like exist.

In summary, there is no better flow measurement method for open channel flow measurement, especially for open channels with poor water quality, turbid water body, more floating materials and easy sedimentation. Therefore, in order to solve the above problems, an online channel water flow measuring device is developed.

Disclosure of Invention

The invention aims to provide an on-line channel water flow measuring device, which is convenient for measuring the water flow of an open channel.

The invention adopts the following technical scheme to realize the purpose of the invention:

an on-line measuring device for channel water flow comprises a rectangular frame,

the upper side of the rectangular frame is fixedly connected with the lower side of a sliding groove plate, the sliding groove plate is provided with a first sliding groove, a second sliding groove, a third sliding groove, a fourth sliding groove and a fifth sliding groove which are symmetrical, the two first sliding grooves, the two second sliding grooves, the two third sliding grooves, the two fourth sliding grooves and the two fifth sliding grooves are symmetrical about a transverse central line of the sliding groove plate, sliding columns are respectively arranged in the two first sliding grooves, the two second sliding grooves, the two third sliding grooves, the two fourth sliding grooves and the two fifth sliding grooves, the lower end of each sliding column is fixedly connected to the middle of the upper side of the corresponding clip block, a first square rod penetrates through a group of clip blocks, two ends of the first square rod are respectively and fixedly connected with T-shaped sliding blocks, the two T-shaped sliding blocks are respectively arranged in the corresponding T-shaped sliding grooves, and the two T-shaped sliding grooves are respectively arranged on one opposite sides of the rectangular frame;

mounting block mounting blocks are respectively fixed on the lower sides of the two rectangular blocks, a round shaft is respectively hinged in each mounting block, a square hole is formed in the middle of each round shaft, two square rods respectively penetrate through the square holes, two ends of each square rod II are respectively connected to the middle of the mounting plate in a bearing mode, the two mounting plates are respectively fixedly connected to one end of the lower side of each square rod I, one side of one mounting plate is fixedly connected with an axial angle encoder, and an output shaft of the axial angle encoder is fixedly connected to one end of each square rod II;

every installation piece downside is equipped with logical groove, and every measuring staff upper end is passed respectively and is corresponded cross logical groove fixed connection and correspond round axle one side, every measuring staff one side is a set of water velocity of flow measurement sensor of evenly arranging of fixed connection respectively, every the measuring staff opposite side is a set of water perception sensor of evenly arranging of fixed connection respectively, every the measuring staff lower extreme is fixedly connected with measuring staff respectively and surveys end sensor.

As a further limitation of the technical scheme, the middle part of one opposite side of the rectangular frame is respectively in bearing connection with one end of a first screw rod, the first screw rod is in threaded connection with the middle part of the first square rod, the end part of one end of the first screw rod is fixedly connected with an output shaft of a motor, and the motor is fixedly connected to one side of the rectangular frame.

As a further limitation of the technical scheme, a bearing seat is fixedly connected to the middle of the upper side of the chute plate, a middle bearing of the reverse lead screw is connected into the bearing seat, inner thread blocks are respectively in threaded connection with two ends of the reverse lead screw, and two sides of each inner thread block are respectively hinged to one end of a connecting rod.

As the further limitation of the technical scheme, the other end of each connecting rod is hinged to the middle of a vertical rod of each Z-shaped supporting rod, four corners of the lower side of each rectangular frame are hinged to one end of the corresponding Z-shaped supporting rod, the other end of each Z-shaped supporting rod is in threaded connection with a second lead screw, and a bearing at the lower end of each second lead screw is connected with the middle of the corresponding square plate.

As a further limitation of the technical scheme, two sections of threads with opposite spiral directions are arranged on the reverse screw rod, and one end of the reverse screw rod is fixedly connected to the middle of the first rotating disk.

As the further limitation of the technical scheme, the lower side of the square plate is fixedly connected with a group of ground drilling nails respectively, and the upper ends of the two lead screws are fixedly connected to the middle of the second rotary table respectively.

As a further limitation of the technical scheme, four corners of the upper side of the chute plate are respectively and fixedly connected with hoisting rings.

As a further limitation of the technical solution, the distances between the same adjacent ends of the two first sliding grooves, the two second sliding grooves, the two third sliding grooves, the two fourth sliding grooves and the two fifth sliding grooves are equal.

As the further definition of this technical scheme, this device is equipped with power supply and information processing structure outward, and power supply and information processing structure include the channel pole setting, channel pole setting middle part is fixed with signal processing control host computer, signal processing control host computer upside is fixed with data teletransmission device, channel pole setting upper end is fixed with power supply system.

Compared with the prior art, the invention has the advantages and positive effects that:

1. the multi-measuring-rod simultaneous measurement realizes real-time online measurement of multiple vertical lines and multiple cross sections of the river channel, and has more comprehensive measurement data, higher flow measurement precision and more accurate data; the self-adjusting controllable lifting measuring rod can realize continuous measurement of full water depth when the water level of the channel changes; the measuring rod adopts a bottom detecting and lifting technology, a certain distance is always kept between the measuring rod and the bottom of the canal, and floating objects in water can flow away below the measuring rod and cannot be attached to the measuring rod. The measurement environment has stronger adaptability, and can be stably measured in the water body measurement environment containing impurities.

2. The self-adjusting controllable lifting measuring rod and the measuring rod bottom detecting sensor can realize the measurement of different vertical line water depths caused by factors such as river bottom sedimentation, scouring and the like, can perform compensation calculation on the cross-sectional area of water passing, and are more accurate in measurement; the measurement accuracy is high: as one of the flow velocity measurement technologies, an electromagnetic water flow velocity measurement sensor with strong adaptability to water quality and environment is adopted, the influence of factors such as water quality sand content, floaters and the like is avoided, and the flow velocities of different positions of a water body can be accurately measured in real time; the reliability and stability are high: the electromagnetic water flow velocity measuring sensor has the advantages of mature technology, good environmental adaptability, stable data, sensitive data change, wide speed measuring range and the like; the capacitance induction type water body sensing sensor has the advantages of no temperature drift, no zero drift, no influence of floaters and the like; the stability and the reliability of the flow velocity and water depth data measurement can be ensured, so that the stability and the reliability of the measurement data of the whole system are ensured.

3. The flow measuring system is high in integration degree, convenient to install, convenient to use and maintain, capable of operating with water during installation and high in working efficiency.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a partial enlarged view of the invention at a in fig. 2.

FIG. 4 is a first view of the connection structure of some parts according to the present invention.

FIG. 5 is a second schematic view of a part of the connection structure of the present invention.

Fig. 6 is a third schematic view of a part of the connection structure of the components of the present invention.

Fig. 7 is a fourth schematic view of the connection structure of parts of the present invention.

Fig. 8 is a schematic view showing a part of the connection structure of the components of the present invention.

Fig. 9 is a schematic view of the present invention in use.

In the figure: 1. the device comprises a chute plate, 2, a rectangular frame, 3, a reverse screw rod, 4, a bearing seat, 5, a motor, 6, a first chute, 7, a second chute, 8, a third chute, 9, a fourth chute, 10, a fifth chute, 11, a sliding column, 12, a Z-shaped support rod, 13, a ground drilling nail, 14, a square plate, 15, a second screw rod, 16, a second turntable, 17, a first turntable, 18, a connecting rod, 19, a hoisting ring, 20, a first screw rod, 21, a return block, 22, a measuring rod, 23, a water body sensing sensor, 24, a water flow speed measuring sensor, 25, a measuring rod bottom detecting sensor, 26, 27, 28, an installation block, 29, a round shaft, 30, a through groove, 31, a second square rod, 32, a second square rod driving motor, 33, an installation plate, 34, a T-shaped chute, 35, a T-shaped sliding block, 36, a first square rod, 37, an internal thread block, 38, a square hole, 39, a power supply system, 40, a signal processing control host machine, 41, A channel upright rod 42 and a data remote transmission device.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; 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 meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The following description of the exemplary embodiments refers to the accompanying drawings. The same reference numbers in different drawings identify the same or similar elements. The following detailed description does not limit the invention. Rather, the scope of the invention is defined by the appended claims. For simplicity, the following embodiments are described with respect to the terminology and structure of the present system, however, the embodiments to be described next are not limited to this system but may be applied to any other system that may be applied.

The thread self-locking performance means that when static load and working temperature change are not large, threaded connection can not automatically loosen, the self-locking condition is that a thread lead angle is smaller than an equivalent friction angle of a screw pair, and the threaded connection appearing in the application all accords with the self-locking condition.

As shown in fig. 1 to 9, the invention includes a rectangular frame 2, the upper side of the rectangular frame 2 is fixedly connected with the lower side of a chute plate 1, the chute plate 1 is provided with a first chute 6, a second chute 7, a third chute 8, a fourth chute 9 and a fifth chute 10 which are symmetrical, the two first chutes 6, the two second chutes 7, the two third chutes 8, the two fourth chutes 9 and the two fifth chutes 10 are symmetrical with respect to a transverse central line of the chute plate 1, sliding columns 11 are respectively arranged in the two first chutes 6, the two second chutes 7, the two third chutes 8, the two fourth chutes 9 and the two fifth chutes 10, the lower end of each sliding column 11 is fixedly connected to the middle part of the upper side of a corresponding loop block 21, a first square rod 36 passes through a group of the loop blocks 21, two ends of the first square rod 36 are respectively and fixedly connected with T-shaped sliders 35, the two T-shaped sliders 35 are respectively arranged in corresponding T-shaped chutes 34, the two T-shaped sliding chutes 34 are respectively arranged on the opposite sides of the rectangular frame 2;

a set of return block 21 downside is fixed with installation piece 28 respectively, every it has round axle 29 to articulate respectively in the installation piece 28, round axle 29 middle part is equipped with square hole 38, and square bar two 31 pass respectively square hole 38, the middle part at mounting panel 33 is connected to the bearing respectively at the both ends of square bar two 31, two mounting panel 33 fixed connection respectively is in the downside one end of square bar 36, one two driving motor 32 of one side fixedly connected with square bar of mounting panel 33, install shaft angle encoder (not shown in the figure) on two driving motor 32's of square bar the output shaft fixed connection of square bar two driving motor 32 the one end of square bar two 31.

Every installation piece 28 downside is equipped with logical groove 30, and every measuring staff 22 upper end is passed respectively and is corresponded cross logical groove 30 fixed connection correspond round axle 29 one side, every measuring staff 22 one side respectively a set of water velocity of flow measuring sensor 24 of evenly arranging of fixed connection, every measuring staff 22 opposite side respectively a set of water perception sensor 23 of evenly arranging of fixed connection, every measuring staff 22 lower extreme difference fixedly connected with measuring staff visits end sensor 25.

The middle part of one opposite side of the rectangular frame 2 is respectively in bearing connection with one end of a first screw rod 20, the first screw rod 20 is in threaded connection with the middle part of a first square rod 36, one end part of the first screw rod 20 is fixedly connected with an output shaft of a motor 5, and the motor 5 is fixedly connected to one side of the rectangular frame 2.

The middle part of the upper side of the chute plate 1 is fixedly connected with a bearing seat 4, the middle part of the reverse lead screw 3 is connected with the inside of the bearing seat 4 through a bearing, two ends of the reverse lead screw 3 are respectively in threaded connection with an inner thread block 37, and two sides of the inner thread blocks 37 are respectively hinged with one end of a connecting rod 18.

The other end of each connecting rod 18 is hinged to the middle of a vertical rod of the Z-shaped supporting rod 12, four corners of the lower side of the rectangular frame 2 are hinged to one end of the corresponding Z-shaped supporting rod 12, the other end of the Z-shaped supporting rod 12 is connected with a second lead screw 15 in a threaded mode, and a bearing at the lower end of the second lead screw 15 is connected with the middle of the square plate 14.

And two sections of threads with opposite spiral directions are arranged on the reverse screw rod 3, and one end of the reverse screw rod 3 is fixedly connected to the middle part of the first rotary table 17.

The lower side of each square plate 14 is fixedly connected with a group of ground drilling nails 13, and the upper end of each second lead screw 15 is fixedly connected to the middle of the second rotary table 16.

And hoisting rings 19 are respectively and fixedly connected to four corners of the upper side of the chute plate 1.

The adjacent same positions of the two first sliding grooves 6, the two second sliding grooves 7, the two third sliding grooves 8, the two fourth sliding grooves 9 and the two fifth sliding grooves 10 are equal in distance, and the two first sliding grooves 6, the two second sliding grooves 7, the two third sliding grooves 8, the two fourth sliding grooves 9 and the two fifth sliding grooves 10 are straight grooves.

This device is equipped with power supply and information processing structure outward, and power supply and information processing structure include channel pole setting 41, channel pole setting 41 middle part is fixed with signal processing control host computer 40, signal processing control host computer 40 upside is fixed with data teletransmission device 42, channel pole setting 41 upper end is fixed with power supply system 39. The signal processing control host 40 is electrically connected with the water body perception sensor 23, the water flow velocity measuring sensor 24, the measuring rod bottom detecting sensor 25, the motor 5, the square rod two driving motor 32, the shaft angle encoder and the data remote transmission device 42, the signal processing control host 40, the data remote transmission device 42 and the power supply system 39 all adopt the prior art, and a circuit control part does not belong to the inventive content with originality of the patent application and is not repeated.

The working process of the invention is as follows: the device is hoisted to a channel by a crane through a hoisting ring 19, then a first rotating disc 17 is rotated according to the width between two embankments of the channel, the first rotating disc 17 drives a reverse lead screw 3 to rotate, the reverse lead screw 3 drives two inner thread blocks 37 to move away from each other, the two inner thread blocks 37 drive corresponding connecting rods 18 to swing, the connecting rods 18 drive Z-shaped supporting rods 12 to swing, two pairs of Z-shaped supporting rods 12 drive a second lead screw 15 and a square plate 14 to swing and to a proper position, the first rotating disc 17 is stopped rotating, then a crane is operated to respectively place two pairs of square plates 14 on the embankments of the corresponding channel, ground drilling nails 13 on the two pairs of square plates 14 are inserted into the embankments, a power supply and information processing structure is fixedly arranged on the embankments, then a worker is arranged to simultaneously rotate the four second rotating discs 16, the second rotating discs 16 drive the corresponding second lead screws 15 to rotate, the second lead screw 15 drives the corresponding Z-shaped supporting rods 12 to move downwards at the same time, the two pairs of Z-shaped supporting rods 12 drive the chute plate 1, the rectangular frame 2, the measuring rod 222 and the like to move downwards, when the lower side of the mounting plate 33 is close to the water surface, the second rotary table 16 stops rotating, the side, provided with the water flow velocity measuring sensor 24, of the measuring rod 22 faces the water flow, the side, provided with the water body sensing sensor 23, faces back to the water flow, and the four second rotary tables 16 are stopped. Then the motor 5 is started, the motor 5 drives the first lead screw 20 to rotate, the first lead screw 20 drives the first square rod 36 to move towards the direction close to the motor 5, the first square rod 36 drives the two T-shaped sliders 35 to slide in the corresponding T-shaped sliding grooves 34, the first square rod 36 drives the group of return blocks 21 to move, the group of return blocks 21 drives the corresponding sliding columns 11 in the first sliding groove 6, the second sliding groove 7, the third sliding groove 8, the fourth sliding groove 9 and the fifth sliding groove 10 to slide, the sliding columns 11 are separated at equal intervals due to the limitation of the first sliding groove 6, the second sliding groove 7, the third sliding groove 8, the fourth sliding groove 9 and the fifth sliding groove 10, the group of sliding columns 11 are separated at equal intervals, the group of sliding columns 11 drives the mounting block 28, the circular shaft 29, the measuring rod 22, the water flow velocity measuring sensor 23, the water body sensing sensor 24 and the measuring rod bottom detecting sensor 25 to move at equal intervals through the corresponding return blocks 21, the measuring rods 22 are uniformly distributed in the channel according to the width of the channel, then the motor 5 is closed, then a square rod two driving motor 32 is started, an output shaft of the square rod two driving motor 32 rotates to drive a square rod two 31 to rotate, the square rod two 31 drives a group of round shafts 29 to rotate, the group of round shafts 29 drives a measuring rod 22 to swing downwards, the initial position of the measuring rod 22 is in a horizontal state parallel to the water surface, the measuring rod 22 drives a measuring rod bottom detecting sensor 25 to swing downwards, after the measuring rod bottom detecting sensor 25 contacts the bottom surface of the river channel, the measuring rod bottom detecting sensor 25 transmits data to a signal processing control host computer 40, the signal processing control host computer 40 controls the square rod two driving motor 32 to stop rotating, a shaft angle encoder and a water body sensing sensor 23 transmit measuring information to the signal processing control host computer 40, the signal processing control host computer 40 calculates the water depth according to the obtained information and a preset method, the water flow velocity measuring sensor 24 transmits the measuring information to the signal processing control host computer 40, the signal processing control host computer 40 calculates the flow velocity of water, the signal processing control host 40 transmits the field data to the cloud or management centers at all levels through the data remote transmission device 42, so as to realize real-time online measurement of channel flow.

The water depth calculation formula is as follows:

h ═ Lsina (formula 1)

Wherein: h is water depth;

l is the length of water entering when the bottom of the measuring rod 2 touches the bottom, and is measured by the water body perception sensor 23;

a is the angle between the measuring rod 22 and the water surface, which is measured by the shaft angle encoder, which is the prior art and is not described again in detail for the prior art.

The average flow rate at the location of each of the pins 22 is calculated as follows:

the measurement point flow rate on each measurement bar 22 is collected: v_0.0、V_0.2、V_0.6、V_0.8、V_1.0；

The average flow rate at the location of each stylus 22 is calculated:

i is the number of the measuring rod 22

The average flow rate for all the measuring bars 22 is calculated:

V＝(V₁+V₂+V₃.... Vn/n (formula 3)

n is the total number of bars and V is the average velocity measured by the n bars 22.

This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements to the structural elements recited in the literal languages of the claims.