Appendix B Running DMS3 with Less Smart Device Clients

Less smart device clients (LSDCs), such as IP cameras and webcams require special consideration in DMS³.

While smart device clients (SDCs), such as a Raspberry Pi or similar single board computer (SBC), have both a camera device and a means for running a motion detection application on the same local host, LSDCs typically just have a camera device, with limited means for processing video streams locally.

DMS³ resolves this limitation by allowing any DMS³Client to serve as an SDC proxy for one or more LSDCs.

Operationally, an SDC running as a proxy for one or more LSDCs is viewed no differently than a standalone SDC. However, care must be taken to make sure that all participating LSDCs are correctly enumerated when configuring the locally-installed motion detection application on the SDC proxy.

As an example, using Motion, the configuration file, motion.conf, permits multiple video devices to be managed by a single instance of Motion. These devices can all be managed by one SDC proxy (running the DMS³Client component).

In the example file below, the last few lines of a motion.conf file is listed, showing four separate camera configurations managed by a single SDC proxy (note the last line used by the DMS³Mail component):

##############################################################
# Camera config files - One for each camera.
##############################################################
camera /home/user/security/motion_config/cam_office.conf
camera /home/user/security/motion_config/cam_livingroom.conf
camera /home/user/security/motion_config/cam_garage.conf
camera /home/user/security/motion_config/cam_driveway.conf

##############################################################
# Run DMS3 Mail when image generated
##############################################################
on_picture_save /usr/local/bin/dms3mail -pixels=%D -filename=%f

Once configured, these LSDC devices are now managed directly through a single SDC running the DMS³Client component.