To further strengthen the science and technology education work of our college,Cultivate the spirit of students' scientific creation,School of Electrical EngineeringYuSuccessfully held tenthFifth "Electricity Cup" Student Academic Technology Works Contest。With the strong support of Shanda Power and college leaders and teachers,This contest is actively innovated on the basis of summarizing previous experiences,Get widespread recognition and active participation by teachers and students,A total of 26 teams participated in each single competition,After the preliminary selection and final defense,Final3Group works won the first prize,5Group works won the second prize, and 7 groups won the third prize.
Next,Follow our footsteps to review and get one、Second -prize excellent work!
First prize of designated propositions for graduate students
Placing posture detection device based on MPU6050
This work passedMPU6050 Space Sensory Sensor Test the line length of 1.5 meters, a ball three -axis acceleration and partiality angle,According to the corresponding treatment,Stm32F103 elite board with a positive atom with a 7 -inch TFTLCD screen to display the real -time motion status and corresponding acceleration of the ball、speed、displacement and frequency。Playing the ball can initialize the module,Get the initial state through space motion sensors; artificially pull the ball to a random high speed,Release the ball from static,After a few seconds, the ball enters the stable pendulum state,At this time, you can get the corresponding physical quantity of the ball through the display。This work accurately measures the real -time acceleration of the ball、speed、physical quantities such as displacement and frequencyhas important practical significance.
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Undergraduate Free Proposition First Prize
Elderly people based on MPU6050 fall detection for help and cardiac blood oxygen detection device
This work is a kind of elderly person falling detection for help and blood oxygen detection multi -function integrated wearable device,The elderly can wear it to the waist,Use the rechargeable battery to power。It can effectively determine whether the human body is in a state of fall,and can detect blood oxygen value at any time。When the old man falls,The bee singer of the device emits a sound sound,LED lights flickering,Remind people around the people to rescue; the mobile phone app will also automatically call and send positioning SMS and other help information to notify the family。When the device is misjudged,The elderly can manually turn off the help system。
At the same time,This device has a blood oxygen detection module,The elderly can put your fingers on the blood oxygen sensor at any time for the blood oxygen heart rate detection,The result will appear on the display。This work is healthy for the elderly、Life safety and the problem of alleviating aging are important。
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First prize of graduate free proposition
Multi -model Multi -time -scale load prediction software
When predicting the load prediction of unfamiliar areas, we first use several time sequence methods with strong robustness to predict,Model with the least prediction error as the output application result,At the same time, this new load data set is incorporated into the historical database and introduced a variety of machine learning models for training,We use a variety of machine learning models to make predictions at the same time when facing the region in the future again,Model with the smallest prediction error of the same prediction error is also selected as the output application result。This work provides an excellent learning platform for beginners who are interested in deep learning,Fast and accurate load prediction results help improve the economic benefits of the whole society。
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The second prize of the designated proposition designated for graduate students
Mathematical Physical model and actual measurement ball monitoring device
This workReal -time collection of swing balls through the MPU6050 chip X -axis、Z axis acceleration ACCX and ACCZ and X、Y、Z axis gesture angle pitch、roll、yaw; according to real -time data and mathematical physical modeling,Establish a mapping relationship between the Y -axis gesture angle ROLL and the ball swing angle θ; according to the angle θ,Calculate the ball displacement X through the triangle function formula; calculate the ball cutting speed VX by the acceleration ACCX integral; obtain the swing swing swing frequency F by identifying the swing angle curve;,Display the value and time change curve of various indicators。This work is monitored to monitor the multi -dimensional motion status of the ball with less actual data,and achieve higher accuracy and less calculation amount,AndReal -time display and data records that realize the status of the ballhas important practical significance.
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Real -time detection and recording system based on Arduino -based abnormal sound
This work uses two open source electronic prototype platform ARDUINOis the core,Complete the spectrum analysis and recording playback function。Software,in ARDUINOWritten on the platform to convert the time domain simulation of the sound to the code of the frequency domain number amount,Including A/dConversion part, time domain-frequency domain conversion part (use fftQuick Fourier algorithm calculate) and abnormal sound recognition parts; the code of the recording module is based on TMRPCM library, but because of a single ARDUINOlimited space,The recording function cannot be completed while performing spectrum analysis,Therefore, the recording module is transferred to another ARDUINO, two ARDUINOExport digital level intersect。This work can be simple、Convenient monitoring abnormal sound、Monitor abnormal events,It is a very efficient auxiliary monitoring technology,It has important practical significance。
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Undergraduate Free Propositions Second Prize
Multi -mode super knob design based on FOC current closed -loop control
This work is based on domestic ESP32Module, on the softwareDesign and production based on the PLATFORMIO platform。Where,Program source code is divided into three files,Main.cpp, motor.cpp, sCreen.cpp,ain.CPPThe main program design is written in the file, motor.cppFiles are written in various modes of motor drivers,Screen.cppThe program design of the display display module is written in the file。This work is realizedIntelligent adjustment of the continuous system、Intelligent adjustment of discrete systems、Emergency contact calls and other functions,It is important to improve the home comfort and safety of the elderly living alone。
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Carbon reduction first "wind" -The wind power unit refined real -time simulation device and upper machine software
This work is pneumatic in the wind turbine-The design of the mechanical system combines the theory and momentum theory of chlorophytic theory, useBEMFrench modeling of the blade part of the wind power unit, and the machineEach blade of the group is divided into multiple leafylasam,and solve the lift at each leafy、resistance,Putting the leafy stress along the leaves of the leaves can get the pneumatic torque of the low -speed axis of the unit。Establish a mechanical dynamics model through the second -order motion equation。In open source softwareOpenfastBased on the second development version of the real -time simulation versionRT-openfast, run inLinuxHost, by introducingRTOSGuarantee10msGrade real -time. existIn terms of electrical system design of wind turbines, useabbDirect drive -type permanent magnet fan, dual -feed fan practical model, based onADCMethod's flow switch to build a model,Based on the semi -hidden delayed decoupling method andMateMethod's wind turbine parallelization simulation design, based onFPGAFilm line parallel and data parallel small steps long real -time simulation implementation。This work can be realizedWind power crew high -precision multi -physical field coupling building mold,Wind engine crew pneumatic-Mechanical dynamic real -time simulation,Multi -speed electromagnetic temporary real -time simulation and other functions,To accurately reproduce the power grid company、Analyze and solve the problem of wind turbines grining,It has important significance to achieve the achievement of dual carbon targets。
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Magnoma and performance analysis
This work uses a small sensor motor for transformation and trial,Corrected the asynchronous motor as an asynchronous start permanent magnet synchronous motor,That is, cutting the permanent magnet of the mouse rotor strip on the rotor rotor;AnsysElectromagnetic simulation calculation output performance such as starting torque、Starting current、phase current、Anti -potential、Magnetic distribution、The rated efficiency under the rated work conditions、The rated power factor, etc.;,Verification of output performance and rated operation performance。Compared with the inductive motor,Apply this work to the oil pumping machine,Combine the advantages in the above function,Asynchronous starting permanent magnet synchronization motor with permanent magnetization transformation of mass production,Replacement of traditional low -performance asynchronous motors,Money saving and money to save money in the real sense of the real sense、High -performance motor for efficient work。
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Success of this "Electric Cup" competition,Provided the students to show their talents、Improve academic ability、Platform that communicates and grows together,I exercised everyone's hands -on practice、Ability to solve problems,It has also further improved the college's academic science and technology atmosphere and scientific and technological innovation level。Next,"Electricity Cup" Student Academic Science and Technology Work Contest will continue to improve and improve,will grow and improve with students。"Power Cup" looks forward to seeing you again next summer!