A large-span river channel cross-section measuring device

Abstract

The present invention discloses a large-span river cross-section measuring device. It includes a ferry board and a fishing rod. The fishing rod is fixedly installed on a fixed plate, and a guide wheel, a pressure sensing wheel, a wire collecting roller and a single-chip microcomputer control unit I are installed on the fishing rod. A rotation angle sensor I and a rotation angle sensor II are installed in cooperation with the guide wheel. The fishing rod and the ferry board are connected by a cable. A guide beam is fixedly installed on the ferry board. When the ferry board motor rotates, the screw rod can drive the sliding end to move relative to the guide beam together. The sliding end is internally encapsulated with a single-chip microcomputer control unit II. Both ends of the keel are connected to the ferry board and the sliding end respectively. A flexible panel is installed on the keel. An impeller generator is installed at the end of the ferry board. A mapping integrated control module is fixedly installed at the lower end of the ferry board. The single-chip microcomputer control unit I and the single-chip microcomputer control unit II communicate through wireless transmission. The structure of the present invention is simple, suitable for large-span rivers, and can complete the cross-section measurement of the river at one end of the river, saving time and effort.

Description

Technical Field

[0001] This invention patent belongs to the technical field of hydrographic surveying and mapping, and particularly relates to a large-span river cross-section measuring device. Background Art

[0002] River cross-section measurement is the basic data for flood control, hydrological and hydraulic calculation, water resources evaluation and management. It is of great significance for mastering the river water regime and water resources situation, carrying out flood control and disaster reduction, rationally allocating and utilizing water resources, and infrastructure construction across or along the river. However, the river cross-section will change correspondingly due to water flow erosion and human influence, and a large amount of manpower and material resources are consumed every year to complete the corresponding measurement work.

[0003] The conventional method for river cross-section measurement operations is to set up ranging and angle measuring instruments such as total stations at known points on the riverbank. The instrument measures the azimuth of the target ship and the horizontal distance from the instrument to the target ship, calculates the plane position of the target ship through mathematical formulas, and obtains the underwater elevation value at the target ship according to the still water surface elevation and the measured water depth value at the target ship. Traditional underwater measurement methods include intersection positioning with a plane table or optical theodolite combined with a depth sounder, ground radio positioning technology combined with a depth sounder, laser rangefinder combined with a theodolite and a depth sounder, etc. However, the target ship is easily affected by wind and waves and its own speed, making it difficult to ensure the linearity of cross-section navigation. Especially in the case of irregular terrain of the river cross-section, there are risks such as stranding for the target ship to work.

[0004] In the prior art, there are also many drawbacks. For example, a river cross-section high-precision measuring device with the application number 201821716908.2 includes a base frame erected between the two banks of the river, and a steel tape reel placed near the end of the base frame. The bottom surface of the base frame is provided with a T-shaped long groove with an opening facing the river surface. A steel tape is wound in the steel tape reel, and the front end of the steel tape is embedded in the T-shaped long groove and slides back and forth along the T-shaped long groove. A through hole is vertically provided at the front end of the steel tape, and a traction rope is passed through the through hole; one end of the traction rope is connected with an ultrasonic sensor, and the other end is connected to a detection display on the shore; a telescopic tube sleeved outside the traction rope and axially telescoping towards the river surface is fixedly provided at the front end of the steel tape, and the free end of the telescopic tube abuts against the ultrasonic sensor. This patent needs to erect a base frame between the two banks of the river to complete the corresponding work. However, for a large-span river, it is unrealistic to complete the base frame construction for a cross-section of dozens of meters or even hundreds of meters, and the cost and manpower consumption are extremely huge. Summary of the Invention

[0005] The purpose of this invention patent is to propose a large-span river cross-section measuring device for the problems existing in the above-mentioned prior art.

[0006] The technical solution of the patent of the present invention is implemented as follows: a large-span river cross-section measuring device includes a ferry and a fishing rod, the fishing rod and the ferry are connected by a cable, a guide beam is fixedly installed on the ferry, a hole containing an internal thread is pre-installed on the guide beam, the internal thread cooperates with the external thread of the screw rod, so that the screw rod can move relative to the guide beam when it rotates, a ferry motor is fixedly installed at the end of the screw rod, the ferry motor is fixedly installed on the sliding end, a circuit control assembly I is encapsulated in the sliding end, the sliding end is fixedly installed with one end of the keel, the other end of the keel is fixedly installed on the ferry, a flexible panel is installed on the keel, a turbine generator is installed at the end of the ferry, and a surveying and mapping integrated control module is fixedly installed at the lower end of the ferry. The fishing rod is fixed on a fixed plate, a bracket III is fixed on the fishing rod, the bracket III is connected to the rotation angle sensor II axis, a rotation angle sensor I is fixed on the rotation angle sensor II, the rotation angle sensor I is connected to the guide wheel bracket axis, a guide wheel is installed on the guide wheel bracket, a photoelectric rotary encoder is fixed on the guide wheel, a cable is wound around the guide wheel, one end of the cable enters the inside of the fishing rod through a line inlet window on the fishing rod, the cable is supported by a pressure sensing wheel and turned, and finally the cable is wound around a line gathering roller, the line gathering roller is fixed to the rotor of the traction motor, the traction motor is fixed in bracket II, and bracket II is fixed in a fishing rod housing; the pressure sensing wheel is fixed on bracket I, the bracket I is fixed in a fishing rod housing, a circuit control assembly I is installed in the fishing rod housing. The circuit control assembly I includes a single-chip control unit I, a wireless transmission module I, a motor drive module I and an A / D conversion. The single-chip control unit I is respectively connected to the wireless transmission module I, the motor drive module I and the A / D conversion. The single-chip control unit I is connected to the traction motor through the motor drive module I. The single-chip control unit I is respectively connected to the pressure sensing wheel, the angle sensor I, the angle sensor II and the photoelectric rotary encoder through the A / D conversion. The circuit control assembly II is composed of a single-chip control unit II, a wireless transmission module II and a motor drive module II. The single-chip control unit II is connected to the ferry motor through the motor drive module II. The single-chip control unit II communicates with the single-chip control unit I through the wireless transmission module II and the wireless transmission module I.

[0007] The patented structure of the present invention is simple. It can cross a large-span river channel by the cooperation of a fishing rod and a ferry without the need for manual crossing. Under the energy conditions provided by hydraulic power, the relevant cross-sectional measurements along the designated crossing route are automatically completed through a single-chip microcomputer and wireless transmission technology, thus saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of a large-span river cross-section measuring device;

[0009] Figure 2 It is a schematic diagram of the internal structure of the fishing rod;

[0010] Figure 3 It is a schematic diagram of the detailed structure of the fishing rod guide wheel;

[0011] Figure 4 It is a schematic diagram of the internal structure of the ferry board;

[0012] Figure 5 It is a schematic diagram of the circuit control assembly structure.

[0013] Description of part numbers in the figure:

[0014] 1. Fishing rod; 2. Ferry; 3. Fishing rod housing; 4. Guide wheel; 5. Pressure sensing wheel; 6. Bracket I; 7. Bracket II; 8. Line collecting roller; 9. Line inlet window; 10. Impeller generator; 11. Guide wheel bracket; 12. Angle sensor I; 13. Bracket III; 14. Angle sensor II; 15. Guide beam; 16. Screw rod; 17. Ferry motor; 18. Surveying and mapping integrated control module; 19. Keel; 20. Circuit control assembly I; 21. Single chip microcomputer control unit I; 22. Wireless transmission module I; 23. Motor drive module I; 24. A / D conversion; 25. Photoelectric rotary encoder; 26. Traction motor; 27. Circuit control assembly II; 28. Single chip microcomputer control unit II; 29. ​​Wireless transmission module II; 30. Motor drive module II; 31. Cable; 32. Fixed plate; 33. Sliding end; 34. Flexible panel. DETAILED DESCRIPTION

[0015] The following is a detailed description of the patent implementation scheme of the present invention in conjunction with the accompanying drawings. A large-span river cross-section measuring device includes a ferry 2 and a fishing rod 1, wherein the fishing rod 1 is connected to the ferry 2 by a cable 31, a guide beam 15 is fixedly mounted on the ferry 2, a hole containing an internal thread is pre-installed on the guide beam 15, the internal thread matches the external thread of the screw rod 16, so that the screw rod 16 can move relative to the guide beam 15 when it rotates, a ferry motor 17 is fixedly mounted at the end of the screw rod 16, the ferry motor 17 is fixedly mounted on the sliding end 33, a circuit control assembly II27 is encapsulated in the sliding end 33, the sliding end 33 is fixedly mounted to one end of the keel 19, the other end of the keel 19 is fixedly mounted on the ferry 2, a flexible panel 34 is installed on the keel 19, an impeller generator 10 is installed at the end of the ferry 2, and a surveying and mapping integrated control module 18 is fixedly mounted at the lower end of the ferry 2. The fishing rod 1 is fixed on the fixed plate 32, and a bracket III13 is fixed on the fishing rod 1, and the bracket III13 is axially connected to the angle sensor II14, and an angle sensor I12 is fixed on the angle sensor II14, and the angle sensor I12 is axially connected to the guide wheel bracket 11, and a guide wheel 4 is installed on the guide wheel bracket 11, and a photoelectric rotary encoder 25 is fixed on the guide wheel 4. The cable 31 is wound around the guide wheel 4, and one end of the cable 31 enters the interior of the fishing rod 1 through the line inlet window 9 on the fishing rod 1. The cable 31 is supported by the pressure sensing wheel 5 and turned, and finally the cable 31 is wound around the line collecting roller 8, and the line collecting roller 8 is fixed to the rotor of the traction motor 26, and the traction motor 26 is fixed in the bracket II7, and the bracket II7 is fixed in the fishing rod housing 3; the pressure sensing wheel 5 is fixed on the bracket I6, and the bracket I6 is fixed in the fishing rod housing 3, and the circuit control assembly I20 is installed in the fishing rod housing 3. The circuit control assembly I20 includes a single-chip control unit I21, a wireless transmission module I22, a motor drive module I23 and an A / D converter 24. The single-chip control unit I21 is connected to the wireless transmission module I22, the motor drive module I23 and the A / D converter 24 respectively. The single-chip control unit I21 is connected to the traction motor 26 through the motor drive module I23. The single-chip control unit I21 is connected to the pressure sensing wheel 5, the angle sensor I12, the angle sensor II14 and the photoelectric rotary encoder 25 respectively through the A / D converter 24. The circuit control assembly II27 is composed of a single-chip control unit II28, a wireless transmission module II29 and a motor drive module II30. The single-chip control unit II28 is connected to the ferry motor 17 through the motor drive module II30. The single-chip control unit II28 communicates with the single-chip control unit I21 through the wireless transmission module II29 and the wireless transmission module I22.

[0016] When in use, two fishing rods 1 are installed along the margin of the river to be measured, and the coordinates of the fishing rods 1 are measured by GPS and input into the host computer. The fishing rods 1 can be fixed by stepping on the fixing plate 32 with vehicle tires, etc. After the ferry plate 2 is placed in the river to be measured, the wireless transmission module I22 and the wireless transmission module II29 are interconnected with the host computer, and the host computer plans the cross-river route, and then sends a measurement instruction through the host computer. After the ferry plate 2 is immersed in the river to be measured, the impeller generator 10 starts to supply power to the ferry plate 2 under the action of water flow impact. The single-chip microcomputer control unit I21 of each part in the fishing rod I receives the instruction from the host computer through its corresponding wireless transmission module I22, and the single-chip microcomputer control unit I21 of each part drives the corresponding traction motor 26 to work through the corresponding motor drive module I23. The traction motor 26 drives the corresponding cable winding roller 8 to rotate to let out the corresponding cable 31. Under the regulation of the single-chip microcomputer control unit I21, each cable winding roller 8 makes the position of the ferry plate 2 always form a certain angle with the water flow direction. After the traction motor 26 works for a period of time, it automatically stops. Under the combined action of continuous water flow impact and cable 31 traction, the ferry plate 2 moves in the direction of the opposite bank and downstream of the river. At this time, the corner sensor I12, the corner sensor II14, and the optical rotary encoder 25 respectively send the lateral deflection angle, longitudinal deflection angle of the cable 31, and the distance to the ferry plate 2 to the single-chip microcomputer control unit I21 through the A / D conversion 24. The position of the ferry plate 2 is jointly determined through multiple groups of calculations. The position is compared with the cross-river route planned by the host computer. If the position is upstream of the cross-river route planned by the host computer, the single-chip microcomputer control unit I21 drives the corresponding traction motor 26 to work through the motor drive module I23. The traction motor 26 drives the corresponding cable winding roller 8 to rotate to let out the corresponding cable 31 until the measured position of the ferry plate 2 is on the cross-river route planned by the host computer. If the position is upstream of the cross-river route planned by the host computer, the single-chip microcomputer control unit II28 drives the ferry motor 17 to work through the motor drive module II30. The ferry motor 17 drives the lead screw 16 to rotate, and then the sliding end 33 moves in the direction close to the guide beam 15, making the curvature of the keel 19 and the flexible material thereon become larger, increasing the flow velocity difference between the two sides of the ferry plate 2. The resultant force generated by the water flow passing through both sides of the ferry plate 2 pushes the ferry plate 2 towards the opposite bank of the river until the measured position of the ferry plate 2 is on the cross-river route planned by the host computer.When the ferry 2 is located on the crossing route planned by the host computer, the single-chip microcomputer control unit I21 drives the surveying and mapping integrated control module 18 to work through the A / D conversion 24, and transmits the measurement results back to the host computer through the wireless transmission module II29. When the measurement work of this stage is completed, the single-chip microcomputer control unit I21 drives the corresponding traction motor 26 to work through the motor drive module I23, and the traction motor 26 drives the corresponding line collection roller 8 to rotate to continue to lengthen the corresponding cable 31, thereby starting the next stage of measurement work until the ferry 2 reaches the other side of the river to complete the entire measurement work. The operator issues an instruction through the host computer, and the single-chip microcomputer control unit I21 drives the corresponding traction motor 26 to work through the motor drive module I23, and the traction motor 26 drives the corresponding line collection roller 8 to rotate to retract the corresponding cable 31, thereby recovering the ferry 2.

Claims

1. A large-span river cross-section measuring device, characterized in that: It includes a boarding plank (2) and a fishing rod (1). The fishing rod (1) is connected to the boarding plank (2) by a cable (31). A guide beam (15) is fixedly installed on the boarding plank (2). There is a pre-installed cavity with internal threads on the guide beam (15). The internal threads are matched with the external threads of a lead screw (16), so that the lead screw (16) can move relative to the guide beam (15) when it rotates. A boarding plank motor (17) is fixedly installed at the end of the lead screw (16). The boarding plank motor (17) is fixedly installed on a sliding end (33). A circuit control assembly II (27) is encapsulated in the sliding end (33). The sliding end (33) is fixedly installed at one end of a keel (19). The other end of the keel (19) is fixedly installed on the boarding plank (2). A flexible panel (34) is installed on the keel (19). An impeller generator (10) is installed at the end of the boarding plank (2). A mapping integrated control module (18) is fixedly installed at the lower end of the boarding plank (2). The fishing rod (1) is fixedly installed on a fixing plate (32). A bracket III (13) is fixedly installed on the fishing rod (1). The bracket III (13) is axially connected to a rotation angle sensor II (14). A rotation angle sensor I (12) is fixedly installed on the rotation angle sensor II (14). The rotation angle sensor I (12) is axially connected to a guide wheel bracket (11). A guide wheel (4) is installed on the guide wheel bracket (11). An optical and electrical rotary encoder (25) is fixedly installed on the guide wheel (4). The cable (31) is wound around the guide wheel (4). One end of it enters the inside of the fishing rod (1) through an inlet window (9) on the fishing rod (1). The cable (31) is supported by a pressure sensing wheel (5) and turns. Finally, the cable (31) is wound around a wire collecting roller (8). The wire collecting roller (8) is fixedly installed on the rotor of a traction motor (26). The traction motor (26) is fixedly installed in a bracket II (7). The bracket II (7) is fixedly installed in a fishing rod housing (3). The pressure sensing wheel (5) is fixedly installed on a bracket I (6). The bracket I (6) is fixedly installed in the fishing rod housing (3). A circuit control assembly I (20) is installed in the fishing rod housing (3).

2. The large-span river channel cross-section measuring device according to claim 1, characterized in that: The circuit control assembly I (20) includes a single-chip microcomputer control unit I (21), a wireless transmission module I (22), a motor drive module I (23), and an A / D conversion (24). The single-chip microcomputer control unit I (21) is respectively connected to the wireless transmission module I (22), the motor drive module I (23), and the A / D conversion (24). The single-chip microcomputer control unit I (21) is connected to the traction motor (26) through the motor drive module I (23). The single-chip microcomputer control unit I (21) is connected to the pressure sensing wheel (5), the rotation angle sensor I (12), the rotation angle sensor II (14), and the optical and electrical rotary encoder (25) through the A / D conversion (24).

3. The large-span river cross-section measuring device according to claim 1, characterized in that: The circuit control assembly II (27) consists of a single-chip microcomputer control unit II (28), a wireless transmission module II (29), and a motor drive module II (30). The single-chip microcomputer control unit II (28) is connected to the ferry plate motor (17) through the motor drive module II (30). Communication between the single-chip microcomputer control unit II (28) and the single-chip microcomputer control unit I (21) is achieved through the wireless transmission module II (29) and the wireless transmission module I (22).

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