HomeAssistant集成RaspberryPiCamera

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已于 2022-12-14 13:14:31 修改

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分类专栏：树莓派 HomeAssistant 文章标签：服务器 linux 运维

于 2022-12-14 11:33:15 首次发布

原文链接：https://einar.slaskete.net/2018/08/16/using-a-raspberry-pi-as-a-surveillance-camera-in-home-assistant/

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一、树莓派启用摄像头

sudo raspi-config

选择Interfacing Options → Camera启用

二、编辑 /etc/modules-load.d/modules.conf 增加一行 bcm2835-v4l2

sudo nano /etc/modules-load.d/modules.conf

三、安装一些包

sudo apt-get install gstreamer1.0-tools gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad

四、创建一个Systemd服务

[Unit]
Description=Raspberry Pi Camera Stream Service
After=network.target

[Service]
Type=simple
User=你的用户名
ExecStartPre=/usr/bin/v4l2-ctl -c video_bitrate=4000000
ExecStart=/usr/bin/gst-launch-1.0 v4l2src ! video/x-h264,width=1280,height=720,framerate=30/1 ! h264parse config-interval=1 ! matroskamux streamable=true ! tcpserversink host=::0 port=9000 sync=false sync-method=2

[Install]
WantedBy=multi-user.target

$ sudo systemctl daemon-reload
$ sudo systemctl enable raspicam.service
$ sudo systemctl start raspicam.service

五、测试流是否打开

桌面版的Raspbian带有VLC播放器，可以直接在网络串流中输入tcp://<your-raspberry-ip>:9000来测试。帧数、分辨率等都可以在服务配置文件中更改。

六、HomeAssistant集成

1、编辑cameras.yaml

vi cameras.yaml

- platform: ffmpeg
  name: Raspicam
  input: tcp://<your-raspberry-ip>:9000

2、编辑shell_commands.yaml

vi shell_commands.yaml

record_raspicam_minute: ffmpeg -i tcp://<your-raspberry-ip>:9000 -an -c:v copy -t 00:01:00 /var/tmp/raspicam-{{ now().strftime("%Y-%m-%d_%H-%M-%S") }}.mkv

3、编辑automations.yaml

vi automations.yaml

- id: record_camera_on_motion
  alias: Record some video if motion is detected while away
  trigger:
    - platform: template
      value_template: "{{ is_state('binary.some_detector', 'on') }}"
  condition:
    - condition: template
      value_template: "{{ not is_state('device_tracker.you', 'home') }}"
  action:
    - service: shell_command.record_raspicam_minute

4.编辑configuration.yaml

vi configuration.yaml

camera: !include cameras.yaml
automation: !include automations.yaml
shell_command: !include shell_commands.yaml

七、开启防火墙

$ sudo apt-get install ufw
$ sudo ufw allow ssh
$ sudo ufw allow from <your-home-assistant-host> to any port 9000 proto tcp
$ sudo ufw enable