It was already getting dark when Petrovich approached his smart house in a hurried gait. Having seen the Boss, the smart house hastily turned on the light in the hallway, began filling the jacuzzi with warm water and turned on the electric kettle. Pleased Petrovich chuckled with pleasure and slowly opened the front door. Do you think that this is an excerpt from a fantastic story? By no means! This is the reality given to us in sensation and convenient neighborhood with integrated systems.
Content
If you do not have a smart home system
Rapid and rapid rates of development of IT and electronic technologies have generated and filled our homes with smart devices and devices.
The emergence of a smart home management system caused positive emotions for advanced users and owners.
Now the work of the smart house system to protect the interests of residents: struggling with forgetfulness when switching off lighting, allows you to economically use heat, gas and water.
Naturally, skillful management of systems and adaptations is required.
To enrich your knowledge about the capabilities and merits of the system, it is enough to study the technology of a smart house. How to choose and, most importantly, to make the components of the system work to make a smart house (DM) become a real assistant that fits into the rhythm of the average user's life or, more simply, became Dom-2?
A little intelligence for home
Let's open the secret that all intelligent systems, and the system of data processing is not an exception, they are programmed according to the scenario, address and algorithmic principle of management of engineering equipment (electrical appliances, light and heat sources, curtains or even blinds).
Scenario and address algorithm for creating intelligence is based on the principle of feedback, which will involve the equipment for signal and data transmission.
In addition, the purpose of the system is to monitor the state of no less intelligent equipment and a friendly interface with residents. SD systems have acquired a programmed intelligence.
The advanced devices and equipment of the system are capable of:
- determine climatic conditions in real time
- ensure the effective functioning of all elements of engineering systems in the absence of a host
- identify abnormal situations and respond instantly.
To cope with such complex tasks is capable of exclusively adapted equipment. You ask: "What is the cost of a smart house?" Let's say frankly, expensive, very expensive, because to provide remote management is carried out using tablets and smartphones.
Components of the CA system
from the Ethernet controller to the Web interface
Any user of a smartphone or tablet does not even suspect which complex chain of action he is launching with a single touch.
The following parameters are exaggerated in the components of the smart house system:
- controllers
- actuating elements
- channels of information transfer.
Schematically, the UD system can be represented from three main elements: a CPU (central processing unit), actuators and mechanisms, interfaces for communication and control.
The central processing element is the server that performs all the embedded algorithms.
Managed (executive) elements are modules that manage lighting, heating, air conditioning. Channel communication with control elements is carried out using Ethernet, ZigBee, CAN technologies.
Ethernet Controller
The control system for technology consists of EIB modules, actuators and sensors connected by a bus.
On the bus can be "suspended" gateways with boiler control units, air conditioning, as well as event and scene control units.
The information is transmitted via the gateway and the Internet using the EIB gateway and the Internet / IP network with the organization of access to components from the LAN side. There is a special version of the EIB system design. By the way, do not confuse similar words Ethernet and Internet.
Using the gateway, you can manually change the configuration of the system.
ideology of ZigBee
Wireless interface ZigBee is designed to create networks with a large number of consumers and low power consumption, so for the systems of UD is of great interest. The interface's ideology is based on the transfer of short light messages between the modules of the system.
The interface speed is sufficient to create a network of simple configuration and topology. The completed module as a separate chip allows you to integrate it with the controllers and USB port of the PC.
CAN bus
The CAN network interface (Controller Area Network) allows the bus to connect devices in full-duplex mode. CAN-bus is a twisted pair and unlimited integration with Ethernet and RS232 interface.
Integration of equipment manufacturers for systems and standard common interfaces (USB, Ethernet, RS232, Wi-Fi and TCP / IP) with smart home equipment is quick and reliable.
A successful creative "union unbreakable", created on the basis of a computer, is backed by a Web-interface and information exchange environment, a content server and a media server.
Therefore, not without reason, a significant element of the components of the CA is a computer. A tremendous amount of accessible and constantly updated software (libraries and frameworks) allows to solve any problem.
Design a system using a smartphone HTC, iPad or iPhone can do it yourself. This will require a number of managed groups and the parameters of the executive groups.
How does the management system work?
Telling the fingers how the management system works is difficult. For starters, you just need to have an idea of the functions and operation of the system controls-sensors.
full extra free zamel
Let's consider how the DM control system works using the EXTA FREE infrared motion sensor and a two-channel receiver.
The infrared sensor of the surface design with the type of load LED has a working frequency range of 868 MHz. The control functions are light and motion detectors. The motion sensor (PIR) has the radio control function of the EXTA FREE receivers. The sensor is tuned to change the thermal radiation, the presence and change of movement of the dynamics of the object.
After motion detection, the sensor transmits the signal to the system via the information channel responsible for lighting or heat supply to the group.
Two-channel radio works with any transmitter extra free zamel, providing multi-program modes of operation:
- monostability and bistability of regimes
- time, with shutdown after the programmed time has elapsed.
Thus, using the sensors, channel receivers and standard communication protocols, the house management system becomes open and accessible to the client. It remains to be a matter of setting up scripts and events from the control.
By the way, as a control element of the system can be implemented remote control bullets, pushbuttons, mobile phone, iPhone or iPad, as well as a touch panel, indicated by a graphical interface.
How to configure the AP using a CAN bus type of reed switches is shown here.
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