Brief Introduction of China Smart Home Internet of Things

With the development of information society, networks and information appliances appear more and more in people's lives, and the ultimate goal of all these developments is to provide a comfortable, convenient, efficient and safe living environment for human beings. How to build an efficient and low-cost smart home system has become a hot issue in the world today. In recent years, many large international companies have put forward corresponding solutions, but so far, the international standards in this field are not mature, and all countries are trying to develop smart home systems suitable for their own national conditions. The R&D team of Embedded Internet and Smart Home System of National Defense University of Science and Technology, through the research and exploration of related technologies in this field, put forward a smart home and embedded Internet solution suitable for China's national conditions. The proposal and implementation of smart home system will not only bring about changes in the family life style of ordinary residents, but also affect many embedded application fields related to the Internet, such as industrial control. The birth of an orderly network architecture with smart home as the most basic unit will inject new vitality and vitality into the Internet. Based on residence, smart home integrates facilities related to home life by using comprehensive wiring technology, network communication technology, smart home system design scheme security technology, automatic control technology and audio-video technology, and builds an efficient residential facilities and family schedule affairs management system to improve the safety, convenience, comfort and artistry of home and realize an environment-friendly and energy-saving living environment.

Definition and Introduction of Smart Home Internet of Things Smart Home Internet of Things is a living environment in which smart home systems are installed on a residential platform. The process of realizing smart home system is called smart home integration.

Smart home integration is to integrate devices related to home life by using integrated wiring technology, network communication technology, security technology, automatic control technology and audio and video technology. Because of the different technical standards and protocols adopted by smart homes, most smart home systems use integrated wiring, but a few systems may not use integrated wiring technology, such as power carrier. In either case, there must be corresponding network communication technology to complete the required signal transmission task, so network communication technology is one of the key technologies in smart home integration. Security technology is an essential technology in smart home system, which is widely used in residential and indoor visual intercom, home monitoring, home burglar alarm, family-related community cards and other fields. Automatic control technology is an essential technology in smart home system, which is widely used in smart home control center and automatic control module of home equipment, and plays a very important role in scientific management of home energy and schedule management of home equipment. Audio and video technology is an important technology to realize the comfort and artistry of home environment, which is embodied in centralized distribution of audio and video, background music, home theater and so on.

Also known as smart house. Generally speaking, it is a networked smart home control system integrating automation control system, computer network system and network communication technology. Smart home will provide users with more convenient means to manage household equipment, such as controlling household equipment through home touch screen, wireless remote control, telephone, internet or voice recognition, and performing scene operation to make multiple devices form linkage; On the other hand, various devices in smart home can communicate with each other and operate interactively according to different states, without user's command, thus bringing maximum efficiency, convenience, comfort and safety to users. The main subsystems of smart home system include: home wiring system, home network system, smart home (central) control management system, home lighting control system, home security system, background music system, home theater and

Smart Home-Single Family System Diagram

Multimedia system, home environment control system and other eight systems. Among them, smart home (central) control and management system, home lighting control system and home security system are necessary systems, and home wiring system, home network system, background music system, home theater and multimedia system and home environment control system are optional systems.

In the identification of smart home system products, the smart home (smart home system products) produced by the manufacturer must belong to the essential system and can realize the main functions of smart home before it can be called smart home. Therefore, smart home (central) control management system, home lighting control system and home security system can be directly called smart home (smart home system products). However, none of the optional systems can be directly called smart home, and only the combination of smart home and specific systems, such as background music system, can be used, which is called smart home background music. It is a misleading behavior to call optional system products smart home directly.

In the identification of smart home environment, only a smart home with all necessary systems and at least one or more optional systems can be called smart home.

Home wiring system

For intelligent residence, there must be a wiring system that can support voice/data, multimedia, home automation, security and other applications. The system is also an intelligent residential wiring system.

Family safety system

The family safety system includes the following aspects:

Door magnetic switch, emergency help, smoke detection alarm, gas leakage alarm, broken glass detection alarm, infrared microwave detection alarm, etc.

Functions and services of smart home Internet of Things;

1, always online network service, always connected to the Internet, providing convenient conditions for working at home.

2. Security: Intelligent security can monitor illegal entry, fire, gas leakage and emergency call for help in real time. Once there is an alarm, the system will automatically send alarm information to the center, and at the same time start related appliances to enter the emergency linkage state to realize active prevention.

3. Intelligent control and remote control of household appliances, such as scene setting and remote control of lighting, automatic control and remote control of electrical appliances, etc.

4. Interactive intelligent control: the voice control function of smart home appliances can be realized through voice recognition technology; Through various active sensors (such as temperature, sound, motion, etc. ), realizing the active response of smart home.

5. Automatic environmental control. Such as a home central air conditioning system.

6. Provide all-round family entertainment. Such as home theater systems and home center background music systems.

7. Modern kitchen and bathroom environment. Mainly refers to the whole kitchen and bathroom.

8. Family information service: manage family information and contact the residential property management company.

9. Family financial services. Complete financial management and consumer services through the network.

10, automatic maintenance function: Intelligent information appliances can download updated drivers and diagnostic programs directly from the vendor service website through the server to realize intelligent fault self-diagnosis and automatic extension of new functions.

The Relationship between China Smart Home Internet of Things and wireless city

Smart home can be a part of smart community or installed independently.

China has a large population, and many urban houses choose dense residential quarters. Therefore, many real estate developers will look at the intelligence of home from the perspective of the intelligence of the whole community, and an all-inclusive intelligent community has emerged. Due to the popular living mode of single-family villas in Europe and America, many houses are scattered around towns, and there is no very concentrated scale. Of course, there is no residential level similar to that in China, and most houses are directly connected with the relevant systems in cities and towns. This can also explain why ADSL, Cable Modem and other broadband access methods are still popular in the United States, while domestic optical fiber Ethernet has developed so rapidly. Therefore, most smart homes in Europe and America are installed independently to form their own systems. However, it has been considered as a subsystem of smart community in China, and the previous stage should be feasible and practical, because most of the smart home functional systems designed and selected in the past are supporting systems in the community. However, smart home will eventually become an independent system and system. As the owner of the house, you are free to choose the smart home system. Even if it is installed in a unified way, you should freely choose the corresponding products and functions according to your own needs, and you can ask for an upgrade. Even if you are not interested in the whole design, you can install one independently. Our point of view is that the implementation of smart home is actually a kind of "smart decoration". The smart community only builds a big environment and completes the rough decoration, and the next smart "fine decoration" should be implemented by itself.

Mainstream intelligence home furnishing

Major brands

Yiju intelligence home furnishing Easyhouse

Beijing yizhiju

Anmings

KOTI intelligence home furnishings

Korea modern

AVTRONSYS Aiweichuang

Honeywell USA

Italy dada home

American Crestron

French vitality

Great Wall Intelligence Home Furnishing

Haier U-home

Shanghai Sobo

Honeywell Pratt

Shenzhen bochuang

Anjubao

Ruixun

Xiamen Wei Zhen

Nico

Fenghua yearning

Chongqing Sike Intelligence Home Furnishing

Ji' nan ruizhengjia electronic products

The composition of the system realizes the intelligence of smart home.

The so-called home intelligence is the ability to realize home security, comfort, information interaction and communication through the facilities of home intelligent management system. The home intelligence system consists of the following three aspects:

(1) Home Security (HS);

(2) Home Equipment Automation (HA);

(3) family communication (HC).

In the construction of home intelligent system, according to the relevant standards in China, the following basic requirements are put forward:

(1) Cable TV sockets should be set in bedrooms, living rooms and other rooms;

(2) Information sockets should be set in the bedroom, study and living room;

(3) Visitors' intercom and building entrance and exit door lock control devices should be set up;

(4) The kitchen should be equipped with a gas alarm device;

(5) An emergency call button should be set;

(6) Water meters, electric meters, gas meters and automatic metering and remote transmission devices for heating (with heating areas) shall be set up.

Smart home control function and mode

Remote control function

No matter which room you are in, you can use a remote control to control all the lights, curtains, air conditioners, stereos and other electrical appliances in your home. For example, watching TV, you don't have to turn off the lights and pull the curtains to miss the key plot; The ventilator in the bathroom is not turned off, just press the remote control. The brightness can be adjusted when the light is remotely controlled, the volume can be adjusted when the sound is remotely controlled, the stroke can be adjusted when the curtain or shutter is remotely controlled, and the angle can be adjusted when the shutter is remotely controlled.

Centralized control function

With a centralized controller, you don't need special wiring. Plug the plug into the 220V power socket to control all the lights and appliances in the house, which are usually placed in the bedside and living room. You can have multiple centralized controllers in different rooms of your home. Lying in bed, you can control the curtains, lighting, stereo and household appliances in the bedroom. You can adjust the brightness when you control the lights, the volume when you control the sound, the stroke when you control the curtains or roller blinds, and the angle when you control the blinds. In this centralized controller, the data transmission of control instructions is based on power line carrier, that is, AC 1 10V or 220V power lines are used to supply power to electrical appliances. This power line carrier control has more advantages than infrared remote control or wireless carrier remote control. Infrared remote control cannot pass through opaque objects such as walls, and the control distance is short; Although the wireless carrier remote control can penetrate the wall, due to the control of amateur radio frequency bands by governments of various countries, the power is very small and the transmission distance is very close. For families with large living area, especially duplex floors, townhouses or villas, wireless remote control is powerless. Although some home systems use home wireless relay amplification system for transmission, which will increase the hardware cost, power line carrier transmission can make up for the shortcomings of infrared remote control and wireless radio frequency remote control, and at the same time, there is no need for wiring. As long as a power line carrier modem is added to each controller and receiver, two-way data transmission can be carried out.

inductive switch

Install induction switches in toilets and closets, and turn on and off the lights.

Network function of network switch

A switch can control the whole network, and the whole network can also control any (group of) lights or appliances. Its control object can be set and changed at will, and it can easily realize complex network operation functions such as full opening and full closing, scene setting and multi-control switching. The T-shaped network switch in the hall can be set as the all-on-all key and the switch of the hall light; You don't have to check every room when you go out. Press a key to turn off all the lights and appliances, and press a key to turn on all the lights when necessary. The T-shaped network switch in the living room can be set as the scene setting key, and a group of lights can be turned on by pressing a key without turning them on one by one. It can also cooperate with complex scene settings such as the whole house audio, air conditioning and curtains. T-type network switch is also a variable switch, and its control object can be set at will. Today is the curtain switch, and tomorrow it can be set as a voice switch. At the same time, T-type network switch is a multi-control switch. Traditional switches can only control the same object in two places at most (double control switch). Using T-type network switch, you can control the same object in any number of places. You can adjust the brightness when you control the lights, the volume when you control the sound, the stroke when you control the curtains or roller blinds, and the angle when you control the blinds.

Local control function of network switch

All lamps and electrical appliances can be controlled by local switches with network switches on the wall; It not only realizes intelligence, but also considers the habit of most people looking for switches on the wall. The light turns from dark to bright when the light is turned on, and from bright to dark when the light is turned off, so as to avoid the sudden change of brightness from irritating the eyes, provide buffer for the eyes and protect the eyes; Avoid the impact of large current and high temperature mutation on filament, protect bulb and prolong service life; No matter through remote control or local switch, you can adjust the lighting, and the network switch can remember to set the brightness, and it will automatically resume the next time you turn on the light.

Telephone remote control function

The answering machine connects the home and the outside world into a network. Anywhere, you can remotely control the electrical products at home by telephone, for example, turn on the air conditioner, turn off the water heater, and even turn on and off the lights or curtains at home when you are on vacation, so that outsiders can feel that there are people at home. The answering machine itself is also an eight-bit centralized controller, which can control all lights, electrical appliances, curtains and so on. As long as the plug is inserted into the 220V power socket on the bed, it also has the dimming function.

Network air conditioning and infrared control

Network air conditioning controller connects the control of air conditioning to the whole network, which can make

It's raining, close the window automatically.

The air conditioner can be remotely controlled by telephone, and the air conditioner upstairs can be switched on and off by wireless remote controller. Centralized controller, timing controller, network switch and wireless induction switch can also control air conditioning.

Network curtain controller

The network curtain controller connects the curtain control to the whole network. When controlling curtains or roller blinds, the stroke can be adjusted, and when controlling blinds, the angle can be adjusted. You can not only control the curtains with a local switch, but also remotely control the curtains with a telephone. You can also use the wireless remote control to open and close the curtains upstairs and downstairs. Centralized controller, timing controller, network switch, wireless induction switch, etc. can also control curtains.

Programmable timing control

The timing controller can program fixed events in the home, such as the opening and closing of curtains and the opening and closing of water heaters. And you can control TV, stereo, lighting and pet feeding by setting the time. The timing controller itself is also an eight-bit centralized controller. Put it on the bedside table, as long as you plug it into the 220V power socket, you can already control all the lights, appliances, curtains and so on. In bed, it also has dimming function. At the same time, it also has time display and alarm function.

Multifunctional remote controller

Six-in-one multifunctional remote controller integrates six remote control functions. First of all, it is a wireless remote control, which can control the lighting, curtains, air conditioning and other systems in the home. At the same time, it is also an infrared remote controller, and the infrared control instruction sets of built-in tv, Audio, VCD and other brands. You can also learn the control functions of two infrared remote controllers. Put it on the coffee table in the living room, when watching TV or listening to the stereo, a remote controller can remotely control all the equipment very conveniently.

Wireless induction probe

Can be placed at will, can control any electrical appliances, such as outside the gate. When someone comes, it can trigger the automatic doorbell, turn on the light, and even turn on the stereo and water heater. If you put it on the balcony, you can know whether someone has illegally broken in from the balcony.

Whole house sound system

The whole house sound system can extend the traditional sound to every room and corner of the house. You can enjoy melodious music when watering the flowers on the balcony, listen to the radio news when washing in the morning, and even listen to the live broadcast in the kitchen. The system can be connected to the existing TV, radio, VCD, DVD and audio source provided by the sound system at home; The speakers in each room can be switched on and off independently, regardless of power matching; The system supports hi-fi stereo technology and does not deal with sound quality. Use the existing networked smart home control means, such as remote controller, centralized controller, network switch, etc. The speaker can be turned on and off, the volume can be adjusted, the speaker can be turned on and off completely, and some switches can be turned on and off. It can also be used to set up complex scenes with lighting systems, air conditioning systems, curtains, etc.

Expansion and upgrade

It provides a good foundation for expansion and upgrading. Voice control subsystem, computer control subsystem, intelligent security subsystem, intelligent access control subsystem and intelligent electrical control subsystem can be expanded and upgraded.

The first mature smart home product.

The origin of smart home?

In the early 1980s, with the emergence of a large number of household appliances with electronic technology, household electronic products (he) appeared. In the mid-1980s, the concept of home automation (HA) was formed by integrating the independent functions of household appliances, communication equipment and safety and disaster prevention equipment. At the end of 1980s, due to the development of communication and information technology, there appeared a commercial system for monitoring, controlling and managing all kinds of communication, household appliances and security equipment in houses, which was called smart home in America, which is now.

The embryonic form of smart home.

The concept of smart home originated very early, but there has been no specific architecture case. It was not until 1984 combined with Techno 1 gies building system applied the concept of informatization and integration of building equipment to CityPlaceBuilding in Hartford, Connecticut, USA that the first [intelligent building] appeared.

The first smart home related standard?

1979, Stanford research institute of the United States proposed the HOMEBUS, which integrated the control lines of household appliances and electrical equipment.

And set up a corresponding research meeting to conduct research. 1983, the American Electronics Industry Association organized a specialized agency to begin to formulate standards for home electrical design, and

1988 compiled the first home electrical design standard, namely "Home Automation System and Communication Standard", also known as it.

Is the home bus system standard (HBS). In its design codes and standards, the electrical design requirements of intelligent residence

The following three conditions must be met, namely:

1, with home bus system;

2. Provide various service functions through the home bus system;

3. You can contact the outside world.

The first mature smart home product?

X- 10

X- 10 is the first product in the world to control lighting and electronic appliances with wires (we now call it electronic carrier product) and make it.

It has commercialized the mainstream products of smart home. Pico Electronics Co., Ltd. successfully developed this technology and sold it to the then.

The famous BSR sound company. X- 10 takes 60 Hz (or 50 Hz) as carrier wave, and then takes 120 kHz pulse as modulation wave, which develops digital control technology and formulates a set of control specifications. X- 10 module was introduced to the United States by Sears Company in 1978, and Shack Radio began to sell this module series in 1979. BSR Audio Company 1990 closed down. R&D personnel before the X- 10 module purchased this technology and set up a new company in the United States. The company name and its product series are named after X- 10. Today, X- 10 is not only an American company, but also a name of home automation control specification. Many large companies in the United States, such as Radio Shack, Stanley, Leviton, Honeywell, etc., sell the products of X- 10 Company, and X- 10 Company manufactures a series of home automation products, such as lighting switches, remote controllers, security systems, TV control interfaces, computer control interfaces, telephone answering machines, etc. Many American manufacturers of home automation products also use X- 10 control specification to produce their products, and X- 10 control specification has become the main leader of home automation control specification in the United States today.