With the latest audio/video processors and wireless communications, doorbells are being transformed from century-old electric chimes to fully cloud-connected front-line security systems.
These changes present a challenge for system integrators and embedded designers to fit power-intensive processing features like motion alerts, video analytics, two-way audio communications, noise cancellation and cloud connectivity into a compact – and sometimes battery-powered – package that must also be reliable and easy to use. Home automation and home security technologies have transformed from a niche luxury to a suite of viable solutions accessible to most households. Simultaneously, the use of imaging systems for industrial automation, office security and security systems has also evolved to include more advanced and connected surveillance functions.
A recent entrant into this market that benefits from the success of cloud-connected security cameras is the video doorbell. As homeowners and renters take their personal security into their hands, or wish to monitor an increasing number of packages left at their front door, video doorbells have taken off and steadily become more feature-rich. This trend corresponds with the demand in the industrial sector for lower-cost and more elaborate video/audio security and monitoring systems.
Video-doorbell features now include advanced video processing using machine learning, cloud connectivity and wireless communication, Power over Ethernet (PoE), battery backup power, advanced audio communications, and enhanced environmental sensing, along with motion detection. Integrating all of these features into a weatherproof electronic package that’s only a few inches wide challenges design engineers, who not only have to include these features but also leave room for upgraded performance and additional functionality for the next generation.