CN217179874U

CN217179874U - Ship lock water filling and draining hydraulic characteristic measuring system based on integrated control sensing technology

Info

Publication number: CN217179874U
Application number: CN202220934171.1U
Authority: CN
Inventors: 黄涛; 周琪琪; 王伟; 姚林; 张伟; 茆迪
Original assignee: Anhui Traffic Survey And Design Institute Co ltd
Current assignee: Anhui Traffic Survey And Design Institute Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-12
Anticipated expiration: 2032-04-21

Abstract

The utility model discloses a ship lock fills sluicing hydraulic characteristic measurement system based on integrated control sensing technology, link to each other power module among power and the control measuring device, give microcontroller, gate control device and pressure sensing device power supply, gate control device receives integrated control measuring device's pulse signal, drive direct current motor work, it opens to drive mechanism control fills sluice gate valve, pressure sensing device contains pressure sensor, pressure signal when receiving and filling the sluice obtains corresponding pressure digital signal through AD conversion module processing back, the GPIO port of inserting microcontroller, microcontroller utilizes interrupt processing procedure to handle each port signal, each measurement station pressure data passes through the UART interface and passes through communication module and upward reach the control computer and do further processing. The integrated control sensing device is adopted to integrate the dispersed controller and the sensors, can be used for observing the hydraulic characteristics of a large-scale ship lock model, and overcomes the defects of high labor and time cost in field tests.

Description

Ship lock water filling and draining hydraulic characteristic measuring system based on integrated control sensing technology

Technical Field

The utility model relates to a water transportation engineering measuring device and instrument field have especially related to a hydraulics parameter measurement platform based on sensing technology, are applied to the verification and the optimization of the water delivery system design parameter in the ship lock design scheme.

Background

For a river channel with an overlarge water head, navigation buildings such as a ship lock and the like are usually applied to overcome the influence of the water head, and the smooth navigation of a ship is realized. The ship lock water delivery system is a main functional component for overcoming water level concentration fall for ships as a finished ship lock, and is the most critical working system for influencing the normal use of the ship lock.

When the ship lock works, the water filling and draining work is carried out on the lock chamber by using the water level communication principle. In the process of irrigation and drainage, water bodies in the lock chambers are staggered, water flow turbulence is violent, the flow state of water flow is complex, irrigation water flow must be fully diffused and energy-dissipated in the process of water delivery, poor flow states such as bubbling, vortex and transverse large are avoided as much as possible, the water flow in the lock chambers is ensured to stably rise or fall, the safe berthing of the lockage ship in the lock chambers is guaranteed, and the design scheme of a safe and efficient water delivery system is a key factor for determining the lockage safety of the ship.

At present, along with the development of national economy, the increase of the demand of freight volume leads to the larger and larger scale of the ship lock, and the water head difference of a river channel in a mountain area is higher and higher, so that the turbulence of water flow in a lock chamber is intensified, the mooring condition of a ship is worsened, and the safety problem of the operation of the ship lock is more prominent. In order to meet the ship mooring condition, the opening time of a water delivery valve has to be prolonged, and a complex water delivery system type and an energy dissipation process are adopted, so that the passing capacity of a ship lock is inevitably reduced, the cost is increased, the design, construction and operation difficulty is increased, and the safety and the economy of the ship lock are directly influenced. Along with the large-scale of the plane scale of the ship lock, the research on the water filling and draining processes of the ship lock, the arrangement of a water delivery system and various hydraulic characteristic indexes is very necessary, and the method has practical significance for the engineering construction of the ship lock.

In order to know the water flow change rule in the approach channel in the water filling and draining process of the ship lock and master the strength and distribution of oblique water flow, backflow and vortex, it is necessary to deeply research the complex unsteady flow in the water delivery system and determine whether the complex unsteady flow meets the requirements of safe passing of the ship. The common means for researching ship lock water delivery systems mainly include numerical simulation, physical models, prototype observation and the like. However, the problems of the current complex water flow forming mechanism, the generation and development process and the like still lack solid theoretical foundation and scientific basis, and the three-dimensional numerical simulation direction is not mature yet and needs to be further researched. The prototype observation method usually needs field tests, and the operation of the built ship lock is influenced while the investment cost is high. The physical model considers the scale effect, has strong intuition and high reliability, but the model is still larger and is limited by the control and measurement means, and the hydraulic high-order parameters and detailed flow field information in the water delivery system and the lock chamber are difficult to obtain. The optimization of the lock water conveyance corridor is still an important problem to be solved in scientific research and engineering practice.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hydraulic characteristic measurement system based on sensing technology, the physical model who uses similarity principle preparation lock design scheme and cross-lock boats and ships, arrange sensor and controller through the different positions at the model, fill the lock and drain the water process and carry out accurate control, and the important hydraulic characteristic parameter who fills the water process is filled to the record, through filling each hydraulic characteristic index of water process and analyzing, form the feedback to the design parameter of water delivery system and arranging, the data that can borrow are provided for the design research of lock.

The utility model discloses the technical problem that will solve adopts following technical scheme to realize:

a ship lock water filling and draining hydraulic characteristic measuring system based on an integrated control sensing technology comprises a control computer, an integrated control measuring device, a gate control device, a pressure sensing device and a power supply;

the integrated control measuring device consists of an STM32 microcontroller, a power supply module, a motor driving module, an AD conversion module and a communication module;

the pressure sensing device consists of a pressure sensor;

wherein, link to each other the power module among power and the control measuring device, turn into multichannel DC power supply, give STM32 microcontroller, gate controlling means and pressure sensing device power supply, STM32 microcontroller passes through the UART interface and links to each other through communication module and control computer, STM32 microcontroller passes through motor drive module and links to each other with gate controlling means, provides motor drive signal, STM32 microcontroller passes through the GPIO port and links to each other with pressure sensing device through AD conversion module for receive and convert pressure signal.

The utility model discloses a further technique:

preferably, the control computer is a personal computer or a workstation and is provided with a MATLAB/SIMULINK simulation platform. And signal output, signal processing process, data statistics and result display are realized.

Preferably, the gate control device consists of a branch motor and a transmission mechanism; the gate control device receives a pulse signal of the integrated control measuring device, drives the direct current motor to work, and drives the transmission mechanism to control the opening of the water charging and discharging valve.

The working principle of the system is as follows:

establishing an integral model of the ship lock according to a similarity principle; connecting each module controlled by the integrated control measuring device with each corresponding measuring point of the integral model; calculating the opening time of the water filling and draining valve and setting the opening instruction of the gate control module; and starting the water filling and draining process, generating output signals by the sensor modules, processing the output signals by the microcontroller, transmitting the output signals to the control computer through the communication line, and displaying, processing and analyzing the output signals by the control computer to obtain hydraulic characteristic parameters of each observation point in the ship lock water filling and draining process.

The utility model discloses following technological effect has:

the integrated control sensing device is adopted for carrying out scattered controller and sensor integration, can be used for observing the hydraulic characteristics of a large-scale ship lock model, and overcomes the defects of high labor and time cost of field test;

the integrated control sensing device is used for test control, the automation degree is high, the synchronism of ship lock gate opening and data acquisition is ensured, and the controllability is strong;

the digital signal data processed by the integrated control sensing device can be transmitted to a control computer for further analysis and processing.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced 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 schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of an exemplary embodiment of a control and measurement device arrangement;

FIG. 3 shows the pressure measuring process of the pressure measuring device No. 1 during the water filling process according to the embodiment.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a technical scheme, a ship lock fills sluicing hydraulic characteristic measurement system based on integrated control sensing technique, as shown in the schematic structure of this embodiment in figure 1. The system is divided into five parts, namely a control computer 1, an integrated control measuring device 2, a gate control device 3, a pressure sensing device 4 and a power supply. The control computer 1 is a personal computer or a workstation, and is provided with an MATLAB/SIMULINK simulation platform 6; the integrated control measuring device 2 consists of an STM32 microcontroller 6, a power supply module 7, a motor driving module 8, an AD conversion module 9 and a communication module 10; the gate control device 3 consists of a branch motor 11 and a transmission mechanism 12; the pressure sensing means 4 consists of a pressure sensor 13.

The system connects a power supply with a power supply module 7 in a control measuring device 2, converts the power supply into a multi-path direct current power supply, and supplies power to a microcontroller 6, a gate control device 3 and a pressure sensing device 4. The microcontroller 6 is an STM32 series microcontroller with meaning semiconductor, and has the functions of an internal clock, a UART interface, a TIM clock, a general IO port and the like. The gate control device 3 receives the pulse signal of the integrated control measuring device 2, drives the direct current motor 11 to work, and drives the transmission mechanism 12 to control the opening of the water charging and discharging valve. The pressure sensing device 4 comprises a pressure sensor 13, and a pressure signal when water is filled is received, processed by the AD conversion module 9 to obtain a corresponding pressure digital signal, and accessed to a GPIO port of the microcontroller 6. The microcontroller 6 processes the signals of each port by using an interrupt processing program, and the pressure data of each measuring point is uploaded to the control computer 1 through the communication module 10 by the UART interface for further processing.

When the system is installed, the transmission mechanism 12 of the gate control device 3 needs to be connected with the water filling and discharging valve of the ship lock model and fixed through a fixing clamp so as to maintain the running stability of the motor. The pressure sensing device 4 is arranged in the pressure taps of the physical model to determine the constant flow and non-constant flow gallery pressures, as shown in fig. 2. The pressure sensor must ensure a certain water tightness and the wiring arrangement should avoid interference of the power supply wiring of the pressure sensor with the transmission of the pressure signal.

When the communication module 10 of the integrated control measuring device 2 uploads data, the measured pressure digital signal is packaged according to an agreed communication protocol, and is uploaded in real time according to a preset communication baud rate. The frame format of the communication protocol comprises a frame header, signal data and a frame tail.

When the system is used, when water flow in the water delivery gallery passes through the pressure sensing device 4, the sensor can generate an output signal, the signal is output to the integrated control measuring device 2 through the AD conversion module 9, and the processed signal is uploaded to the simulation host 1 through the communication module 8. An MATLAB/SIMULINK simulation platform is installed in the simulation host 1; the signals can be recorded in real time, and processed hydraulic characteristic parameters can be displayed on an oscilloscope and a statistical chart interface of the soft simulation platform, as shown in figure 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the present invention, unless explicitly specified or limited, features are not necessarily present independently, but are interleaved with each other. The foregoing shows and describes the principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention to become the only choice. The utility model discloses under the spirit and the scope requirement of utility model, the utility model discloses still can further change and optimize, right the utility model discloses the improvement optimization that goes on all gets into the utility model that claims, the utility model discloses claim the specific scope and be defined by attached claim and equivalent.

Claims

1. A ship lock water filling and draining hydraulic characteristic measuring system based on an integrated control sensing technology is characterized by comprising a control computer, an integrated control measuring device, a gate control device, a pressure sensing device and a power supply;

the pressure sensing device consists of a pressure sensor;

2. The system for measuring the hydraulic characteristics of the water filled and drained from the ship lock based on the integrated control sensing technology as claimed in claim 1, wherein the control computer is a personal computer or a workstation and is provided with a MATLAB/SIMULINK simulation platform.

3. The system for measuring the hydraulic characteristics of the water filled and discharged by the ship lock based on the integrated control sensing technology as claimed in claim 1, wherein the gate control device consists of a branch motor and a transmission mechanism; the gate control device receives a pulse signal of the integrated control measuring device, drives the direct current motor to work, and drives the transmission mechanism to control the opening of the water charging and discharging valve.