Table of contents:
- What is a smart home?
- What do I need for this?
- Which network suits me?
- Who is planning and doing something for me?
- Do all elements work together?
- How about electrosmog?
- What does digital comfort cost me?
- WLan classic is being extended
- Home control from the mobile device
Our apartment can become a serving spirit, a good friend. The technology is ready to set up a network easily, costs are reduced, equipment is there, yesterday's utopian spinning mills have given way to pragmatic services. So let's go: how does the clever home work?
What is a smart home?
Sure, an electronic smoke detector is already quite good - but it doesn't make a smart home yet. It only starts when several components interact. When, for example, ventilation, blinds and heating communicate with each other and agree on who carries out which action, so that on the whole a pleasant room climate is created and heating costs are saved. The smart home is thus created by intelligently networking the individual parts - and by programming how they should behave in the respective case. After that, everything should work automatically without us having to think about it - until we refine, correct or add to it again.
What do I need for this?
• A central control unit for programming: the control unit of a smart home electronics provider or a PC - in the meantime, an app for a tablet or smartphone is often sufficient.
• Devices that perform actions: motion detectors and cameras, thermostats and smoke detectors, roller shutter motors and door openers, …
• Power supply for the actuators: mains, socket, accumulators or batteries, maybe solar cells.
• For radio thermostats and other sensors you do not need a network to start with - you can also operate them individually or using a control unit. You should only install a home network with router and WiFi for access via the Internet, PC or cell phone. The printer and fax machine are also happy.
Which network suits me?
Are you building new or renovating? If you also want to control your heating or blinds via the Internet or a mobile phone app and enjoy extensive music and films throughout the home, then you should install fixed network cables throughout the house (Ethernet). Comfort without a lot of manual work? Just no building dirt in the apartment, possibly for rent! Then use the normal power network. Or simply the WiFi, which you probably already have at home anyway.
Who is planning and doing something for me?
You can also install radio sensors or their central control on your own because it is very simple (and you become wiser step by step). The installation of a WiFi and other network components can be done by your daughter or the neighbor. You should afford an expert for more complex tasks. And here it is important to ask friends: Who knows someone? In principle, electricians or electrical engineers come into question. But some computer scientists think too abstractly for tasks as simple as home automation. Conversely, many an electrician has so deeply explored this technology that you are well served with it.
Do all elements work together?
Different standards are still competing. The manufacturers form alliances to find uniform solutions - within these, the devices should harmonize with each other.
• If possible, equip your home with models from one manufacturer.
• Ask the dealer or planner if the products you intend to buy speak the same language and work together smoothly - and we can guarantee that in writing.
• Make sure that the specialist is aware of existing equipment.
How about electrosmog?
The transmission power of smart home components, e.g. thermostats (433 or 868 MHz), is in the milliwatt range per device. They do not send to the head office constantly, but clocked; Range and transmission power are limited to a few meters. In addition, they are not in close proximity to the body (unlike the wireless mouse). At a distance of 10 cm, the load drops by 90%, from 100 cm even by 99.5%.
What does digital comfort cost me?
As always, this depends on the demands you place on your electronic butler. When building a new building or during a complete renovation, one tends to do it “if so, then correctly” - in other words, to choose the wired solution and to fully automate the household (including a complex alarm system, awning control, etc.). This drives construction and conversion costs upwards by 10, 000 to 30, 000 euros. The electronics are less expensive than the motors that perform certain actions. Wireless systems for retrofitting (for smart homes in old buildings or rental apartments) are between 500 and 5000 euros - depending on the size of the home and the desired comfort features. If you start small and gradually expand, it hardly matters.
Fritz! Box and Fritz! WiFi repeater DVB-C
WLan classic is being extended
In many households, the Fritz! Box is an indispensable inventory because it combines (in different models) many roles: telephone exchange, router for Internet access, Ethernet in the home office, source of your own wireless network - and, last but not least, the core of the system that can be expanded Control in the smart home. It gets amplification from the Fritz! WiFi repeater DVB-C (around 100 euros): It amplifies the WiFi signal and ensures better reception at greater distances. It also offers the option of distributing a DVB-C signal to tablets, smartphones and PCs: it streams cable programs to receivers in the home network. Dual WiFi AC up to 1300 Mbit / s, gigabit LAN, compatible with all WiFi routers, maximum security (WPA2), set up immediately at the push of a button (WPS).
Mydilink Home Smart Plug and Mydilink Home WiFi Motion Sensor
Home control from the mobile device
With the home devices from Mydlink plus the free app, tablets and smartphones become control centers. The Mydlink Home Smart Plug (for 45 euros) integrates one device into the existing WiFi: You can use the app (and via the Internet) to switch any device on and off from anywhere, monitor its power consumption and set up schedules. The Mydlink Home WiFi Motion Sensor (around 40 euros) detects movements and activates devices connected to the Smart Plugs (e.g. lights when you walk past them) or reports it to your mobile device if something is moving that is not supposed to be at home.