I should to turn on and off the motion detection on your camera. I use this to turn on or off the motion detection the a door switch is turn on then nobody is home. I have a D-link dcs 5000l
curl -k "http://USER:PASSWORD@IP-ADDRESS:PORT/motion.cgi?MotionDetectionEnable=1&ConfigReboot=No"
curl -k "http://USER:PASSWORD@IP-ADDRESS:PORT/motion.cgi?MotionDetectionEnable=0&ConfigReboot=No"