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    A smart home without internet: how local processing works
    Technology

    A smart home without internet: how local processing works

    Back to blogJune 23, 20266 min read

    Simple test: unplug the router and tap the "smart" switch in the living room. If the light does not respond, your home is not smart: it is a home asking a server in another country for permission to turn on a bulb. In Panama, where internet and power outages are routine, that difference shows every week. This article explains what local processing is, how it is installed and what changes day to day.

    How a cloud system works

    Most store-bought "smart" devices work like this: you tap a button in the app, the phone sends the command to the manufacturer's server (in the United States, Europe or China), the server forwards it to the device in your home, and the device responds. Four hops to turn on a light three meters away from you.

    Consequences:

    - Without internet, nothing works. Not even from the couch.

    - Latency. Half a second or more between tapping and seeing the light. You notice it, and over time it wears on you.

    - Manufacturer dependency. If they shut their servers, the device dies. It has happened with Revolv, Wink, Insteon, Nest Secure and many more.

    - Privacy. Every habit of your home (what time you get up, when nobody is in) passes through someone else's servers.

    How local processing works

    In a DiraSmart installation there is a small server inside your home, usually in the panel or next to the router. That server runs all the logic: schedules, scenes, presence sensors, cross-brand integration. Devices talk to it over Zigbee, Z-Wave, local WiFi or KNX, without leaving the house.

    When you tap a button in the app while at home, the command travels from the phone to the local server and from the server to the device. Two hops, all within your walls, in milliseconds. The internet only comes in when you control the house from outside, and for that an encrypted tunnel is used.

    Without internet: lights, AC, curtains, scenes, schedules and Shabbat mode keep working exactly the same. The only things you lose are remote control from outside the house and phone notifications until the connection returns.

    What about Alexa, Google and Siri

    You can use them. We integrate them as an additional voice control. But that is what they are, an addition, and they depend on the cloud: if the internet drops, voice stops and the rest of the house does not. We never put the home's logic in the voice assistant, because that would be going back to the four-hop model.

    And in KNX, one step further

    In a KNX residence the server is not even needed for the essentials. Every push-button, actuator and thermostat carries its own program and they communicate over a wired bus. The local server adds the app, visualization and complex scenes, but if you switch it off, the switches and thermostats keep doing their job. It is local processing taken to the limit: no cloud and no single point of failure.

    What changes day to day

    - Instant response. You tap and the light answers. It feels like an old-fashioned switch, but with scenes.

    - Storms and outages. When power returns, the house starts on its own with its programming. Nothing needs "reconnecting".

    - Brands that shut down. If a manufacturer disappears, your devices keep talking to your local server. We have kept equipment running from brands that no longer exist.

    - Your data stays home. Nobody outside knows what time your lights go off.

    How to tell if your current home is local or cloud

    Do the router test. If unplugging it makes you lose control from the app while inside the house, it is cloud-based. If that worries you, message us on WhatsApp: in many cases we can integrate the devices you already own into a local server and give them back their independence, without buying everything again.

    Frequently asked questions

    Does a smart home work without internet?

    Only if it has local processing. In a DiraSmart installation, a server inside the house runs all the logic: lights, AC, curtains, scenes and schedules keep working without internet. Cloud systems (most store-bought devices) stop responding, even from inside the house.

    What is local processing in home automation?

    The home's logic runs on a server inside the property, not in a manufacturer's cloud. Commands travel from the phone to the server and from the server to the device without leaving the house, in milliseconds. The internet is used only for remote control from outside.

    Can I use Alexa with local processing?

    Yes, as an additional voice control. Alexa, Google and Siri depend on the cloud, so if the internet drops the voice stops, but the rest of the house keeps operating because the logic lives in the local server, not in the assistant.

    What happens if my devices' manufacturer shuts down?

    With local processing and open standards (Zigbee, Z-Wave, KNX), devices keep talking to your server even if the brand disappears. With cloud systems, the device stops working, as happened with Revolv, Wink, Insteon and Nest Secure.

    Interested in a smart home?

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