Smart Home Security

Smart Home Security: The Perfect Integration of IoT and Access Control Systems

I recently moved into a two-story apartment, with an intercom system at the entrance of the building, located in the lobby area. Since I usually live upstairs, I want to find a way to remotely open the door without having to rush downstairs to the intercom every time someone presses the doorbell. It would be very convenient. Even better, if I could know when someone presses the doorbell when I’m not at home, that would be great! This way, I can handle doorbell events in a timely manner and won’t miss any important visits.

My apartment’s intercom system has a basic setup, including a buzzer, a button to unlock the hall door, and a speaker, but the microphone in my intercom doesn’t work. The system is powered by 14V AC, but it has an electrical noise problem. Moreover, the system lacks voltage spike suppression, and I often see a small arc when I press the button to control the unlocking of the hall door. This also causes the error counter on my broadband modem to increase by 1. To solve these problems, I need to pay attention to the following points:

  1. Solve the problem of the microphone not working.
  2. Reduce the impact of electrical noise.
  3. Add voltage spike suppression to