pi-alarm-system

Surveillance Camera

Start pi-alarm-system.py to capture images when motion is detected (via external motion sensor connected to a GPIO pin, or via camera, see options of alarm_system.py).

On motion detection: captures and saves an image to the specified folder, records and saves a video (circular buffer).

The start-up script pi-alarm-system.py -l provides a network stream (mjpg-streamer) on port 8080.

TODOs

• mount server and save data to server or install syncthing

Network stream only

A network stream can be provided with (here 1816 is the port number):

raspivid -t 0 -o - -w 800 -h 600 | cvlc -vvv stream:///dev/stdin --sout '#rtp{sdp=rtsp://:1816}' :demux=h264

With VLC player it is then accessible over a network stream with address: rtsp://192.168.1.45:1618/.

Settings

• Do not forget to enable the camera (e.g., with sudo raspi-config).
• To disable the LED on the camera PCB when recording, turn it off by adding following line to /boot/config.txt (will get active after reboot:

  disable_camera_led=1
  

• Setup crontab for start-up script:

  $ sudo crontab -e
  # ...
  @reboot /path-to-script/pi-alarm-system.sh -l
  

• Install mjpg-streamer if you want to provide a live stream.
• If you want to access the homepage or the live stream, you will need to install apache2.

References

• picamera Package API Documentation
• RPi.GPIO Package API Documentation
• mjpg-streamer Installation
• Raspberry Pi Web Server