竞赛资料源码-A solution to TI 杯2021年全国大学生电子设计竞赛赛题D.zip

# La ángulo A solution to [TI 杯2021年全国大学生电子设计竞赛赛题D-基于互联网的摄像测量系统](https://www.nuedc-training.com.cn/index/news/details/new_id/257) from HQU013. ## Structure ```text . ├── docs # Report ├── README.md ├── src # Source code │ ├── alt.py # Alternate camera │ ├── app.py # Main program │ ├── cam.py # Main camera │ ├── mog.py # A test program using OpenCV MOG2 │ ├── requirements.txt │ ├── static # Website stuff │ │ ├── css │ │ ├── deg # Audio files for degree │ │ ├── favicon.ico │ │ ├── js │ │ └── length # Audio files for length │ └── templates # HTML templates │ ├── index.html │ └── local.html └── utils ├── iflytek # A tool to download audio files from iflytek TTS API └── services # Systemd services ``` ## What is missing I don't want to upload the audio files to the repository since they are too big, but you can generate them by running `utils/iflytek`. The audio files should be in the `src/static/deg` and `src/static/length` folders as follows. ```text src/static ├── deg │ ├── 0deg.mp3 │ ├── 1deg.mp3 │ ├── 2deg.mp3 │ │ ... │ └── 90deg.mp3 └── length ├── 40cm.mp3 ├── 41cm.mp3 ├── 42cm.mp3 │ ... └── 160cm.mp3 ``` ### JavaScript Library Used Maybe you also want to running it without Internet connection, for which you should change the libraries URL in `src/templates`. I don't want to include these JavsScript libraries in the repository since they are redundant. I know I should have used NPM as package manager but I'm lazy. - [math.js | an extensive math library for JavaScript and Node.js](https://mathjs.org/) - [Papa Parse - Powerful CSV Parser for JavaScript](https://www.papaparse.com/) - [Bootstrap · The most popular HTML, CSS, and JS library in the world.](https://getbootstrap.com/) ## Usage Grab two or three Raspberry Pi and connect them to the same network with router/switch/WIFI. Change the hostname of one Raspberry Pi to `main-cam` and the other to `alt-cam`. The domain is resolved by the [avahi](https://www.avahi.org/) with mDNS, so you can use `main-cam.local` or `alt-cam.local` to access them. In the Raspberry-Pi with hostname `main-cam` run: ```bash python3 src/app.py ``` In `alt-cam` run: ```bash python3 src/alt.py ``` You can access the Web interface by `http://main-cam.local:5001/`. ## Useful Links ### Flask Capture - [GitHub - akmamun/multiple-camera-stream: Multiple Camera CCTV/RTSP/Video Streaming with Flask and OpenCV](https://github.com/akmamun/multiple-camera-stream) - [GitHub - NakulLakhotia/Live-Streaming-using-OpenCV-Flask: A Flask Web-App to stream live from local webcam or CCTV (rtsp link)](https://github.com/NakulLakhotia/Live-Streaming-using-OpenCV-Flask) - [GitHub - wenyuanw/facemask-detection-RaspberryPi: mask detection, Raspberry Pi, MLX90614, Python, Flask, OpenCV, video stream，树莓派，口罩佩戴检测，人工智能、温度检测](https://github.com/wenyuanw/facemask-detection-RaspberryPi) - [GitHub - EbenKouao/pi-camera-stream-flask: Create your own live camera stream using a Raspberry Pi 4](https://github.com/EbenKouao/pi-camera-stream-flask) - [GitHub - burningion/poor-mans-deep-learning-camera: Build a thin client deep learning camera with the Raspberry Pi, Flask, and YOLO](https://github.com/burningion/poor-mans-deep-learning-camera) - [OpenCV视频分析-Meanshift、Camshift&运动轨迹绘制 - 知乎](https://zhuanlan.zhihu.com/p/71840019) ### pendulum - [Python x OpenCV x math pendulum = gravitational acceleration - YouTube](https://www.youtube.com/watch?v=HlnGRJhO-9I) - [GitHub - bartekpacia/pendulum](https://github.com/bartekpacia/pendulum) - [Angle Finder using OpenCV Python (2020) p.1 - YouTube](https://www.youtube.com/watch?v=NmRt9kdUefk) - [GitHub - arantxax/pendulumtracker: Script to indentify a simple pendulum's movement (velocity, acceleration and so on).](https://github.com/arantxax/pendulumtracker) - [AINT308 Task 2 - Open CV pendulum tracker - YouTube](https://www.youtube.com/watch?v=sqGeK1Bl9FA) ### OpenCV Guide - [OpenCV: OpenCV modules](https://docs.opencv.org/4.4.0/) - [OpenCV 101: A practical guide to the Open Computer Vision Library](https://casis.llnl.gov/seminars/opencv) - [一小时学习python和opencv #python #opencv - YouTube](https://www.youtube.com/watch?v=HHVPK1GqV54) - [Object Tracking using OpenCV (C++/Python)](https://learnopencv.com/object-tracking-using-opencv-cpp-python/) - [OpenCV Object Tracking - PyImageSearch](https://www.pyimagesearch.com/2018/07/30/opencv-object-tracking/) - [OpenCV Track Object Movement - PyImageSearch](https://www.pyimagesearch.com/2015/09/21/opencv-track-object-movement/) - [Object Tracking with Opencv and Python - YouTube](https://www.youtube.com/watch?v=O3b8lVF93jU) - [Tracking Objects | OpenCV Python Tutorials for Beginners 2020 - YouTube](https://www.youtube.com/watch?v=1FJWXOO1SRI) - [OpenCV Vehicle Detection, Tracking, and Speed Estimation - PyImageSearch](https://www.pyimagesearch.com/2019/12/02/opencv-vehicle-detection-tracking-and-speed-estimation/) - [How do I detect the speed of a car with opencv and python?](https://www.researchgate.net/post/How_do_I_detect_the_speed_of_a_car_with_opencv_and_python) - [Real-time object detection with deep learning and OpenCV - PyImageSearch](https://www.pyimagesearch.com/2017/09/18/real-time-object-detection-with-deep-learning-and-opencv/) - [Speed and Distance Estimation using Opencv python - YouTube](https://www.youtube.com/watch?v=DIxcLghsQ4Q) - [Basic motion detection and tracking with Python and OpenCV - PyImageSearch](https://www.pyimagesearch.com/2015/05/25/basic-motion-detection-and-tracking-with-python-and-opencv/) - [Detect Speed with With Raspberry Pi and a Camera - OpenCV - YouTube](https://www.youtube.com/watch?v=n2WT3Qb0SIU) ### Pre-compiled OpenCV - [prepkg/opencv-raspberrypi: Precompiled OpenCV 4.5.4 binaries for Raspberry Pi 3 & 4](https://github.com/prepkg/opencv-raspberrypi) - [dlime/Faster_OpenCV_4_Raspberry_Pi: A pre-compiled version of OpenCV 4 for Raspberry Pi optimized for deep learning / computer vision..](https://github.com/dlime/Faster_OpenCV_4_Raspberry_Pi) ### Dlib - [Install Precompiled Dlib on Raspberry Pi | Lindevs](https://lindevs.com/install-precompiled-dlib-on-raspberry-pi/) - [charlielito/install-dlib-python-windows: Easy installation of dlib python bindings in windows](https://github.com/charlielito/install-dlib-python-windows) ### Web Camera - [misterjtc/raspberrypi_security: RaspberryPi Configuration to use v4l2rtspserver and Shinobi](https://github.com/misterjtc/raspberrypi_security) - [mpromonet/v4l2rtspserver: RTSP Server for V4L2 device capture supporting HEVC/H264/JPEG/VP8/VP9](https://github.com/mpromonet/v4l2rtspserver) - [How To Add Raspberry Pi RTSP Camera Stream To Home Assistant – Siytek](https://siytek.com/raspberry-pi-rtsp-to-home-assistant/) ```bash v4l2rtspserver -W 640 -H 480 -F 24 -P 8554 /dev/video0 ``` ### UV4L - [UV4L – (advanced) Projects](https://www.linux-projects.org/uv4l/) - [Raspberry Pi h264 RTSP Low Latency Camera Instructions — Ben Software Forum](https://www.bensoftware.com/forum/discussion/3254/raspberry-pi-h264-rtsp-low-latency-camera-instructions) - [Installation for ARM (Raspberry Pi) – (advanced) Projects](https://www.linux-projects.org/uv4l/installation/) ### Rasp 1. wpa_supplicant 2. ssh 3. [raspbian | 镜像站使用帮助 | 清华大学开源软件镜像站 | Tsinghua Open Source Mirror](https://mirrors.tuna.tsinghua.edu.cn/help/raspbian/) 4. raspi-config ```bas