Smart Home Management Prototype with Unified Embedded Control

At the time of the project, many smart home systems were difficult to adapt. Their management protocols and GUIs were either closed or only partially configurable, making even small changes time-consuming and costly.

SaM Solutions set out to build a working concept that would solve two issues at once: provide a clear control interface for smart home scenarios and hide the differences among several device buses and protocols behind a single communication layer.

The team also wanted to test video streaming as part of the same setup. The prototype had to receive a live camera feed, display it on a control screen and mobile devices, and use camera data in motion-triggered automation scenarios.

SaM Solutions designed and built a smart home display stand supported by embedded software. A PHYTEC development board supplied by the vendor served as the hardware basis for the prototype.

Cross-platform control interface

The team created a control GUI with Qt. This gave the prototype a practical interface for managing smart home functions and made it easier to change screens, controls, and logic during development.

The interface covered several home-management scenarios, including doors, windows, lighting, temperature zones, and camera-based monitoring.

Unified protocol layer

To avoid tying the concept to one device protocol, SaM Solutions built a protocol conversion layer around D-Bus.

The team developed plug-ins that converted Modbus, CAN, and 1-Wire communication to D-Bus. After that, the GUI and application logic could use a single communication standard instead of dealing with each protocol separately.

This approach simplified the prototype architecture and made it easier to add new control scenarios.

Video streaming and automation scenarios

The prototype also included work with a live video stream from a camera installed in the smart home model. SaM Solutions tested several options for displaying and broadcasting the stream to the main control screen and mobile devices.

Camera streaming was also used in a motion-triggered gate-control scenario, demonstrating how video data could be integrated into home automation logic rather than serving merely as a monitoring feature.

SaM Solutions delivered a working smart home management prototype that demonstrated how various smart home subsystems can be managed through a single embedded control interface.

Key outcomes

• Working smart home stand: The team built a physical prototype with controls for doors, windows, lighting, temperature measurement, camera streaming, and gate automation.
• Unified control layer: Modbus, CAN, and 1-Wire devices were connected through D-Bus plug-ins, reducing protocol-specific complexity in the GUI and application logic.
• Camera-enabled automation: The prototype received and broadcast camera streams and used camera data in a motion-triggered gate-control scenario.

The final concept gave SaM Solutions a practical internal demonstrator for embedded Linux, IoT protocol integration, Qt-based interfaces, and smart home automation scenarios.