Internet technology has developed to this day, and everyone is very familiar with it. It has been deeply embedded in all aspects of our life, study and work. Through the Internet, we can learn about news from every corner of the world, and we can download pictures and music. , Software, etc., you can chat, send and receive emails. In fact, people today are inseparable from computers and the Internet. Without the Internet, our lives would be boring.
The Internet is the connection of all personal computers in the world to form a network. Everyone’s resource sharing and the development of the Internet provide us with massive amounts of data, which have a huge impact on our lives. It can be said that without the Internet, we can't do anything well.
The Internet merely connects personal computers together, and it plays a role in communication between people. So, can we imagine that if we can change an object or object or device into a "computer" and then connect it to the Internet, what will be the result? Isn't it, we can also communicate directly with the object? The answer is yes. This is the original idea of ​​the "Internet of Things".
With the Internet of Things, we will have a deeper understanding of the world. When you are driving on the highway, you can know the temperature of the ground, you can know the pressure of the tires, and when you are going back home, you can turn on the air conditioner at home in advance. , You can boil warm water in advance. When you are on a business trip, you can always know the situation at home.
The Internet of Things is an extension of the development of the Internet. In this network, there are not only people, but also a large number of "things". You can learn about things through the network, and things can also feed back their own information to people through the network. Of course, Things can also communicate and communicate with each other, because we have installed microcomputers for each "thing" that is connected to the network. Therefore, the development of the Internet of Things technology will have an unprecedented impact on our lives and is the inevitable result of our transition from the information world to the smart world.
Second, the basic architecture of the Internet of ThingsThe establishment of the Internet of Things generally has three basic elements.
First, at the level of information perception, its role is to convert the physical parameters of objects into electrical parameters and digital information to facilitate network transmission.
Second, at the level of information transmission, without information transmission, there will be no communication and vitality between things.
Third, the information processing center, that is, at the application level, is our ultimate goal to process massive amounts of information and data. Only with it can we achieve our goal of "smart earth".
The basic architecture of the Internet of Things
The "Community Electric Vehicle Charging Station System" designed by Beijing Shanteng Instrument and Meter Company is a typical IoT application example. The system consists of smart sockets, bottom communication cables, control host (gateway) and management center (see the figure below).
Community electric vehicle management system architecture diagram
The smart socket is the key node of this system. Each smart socket is embedded with a microcomputer chip, which can continuously transmit the information of each vehicle being charged to the host. Its main functions are as follows.
1. Automatically identify the charger to prevent other electrical appliances from stealing electricity.
2. After the user's battery is fully charged, the power is automatically turned off to prevent long-term power supply, which may cause the wire to catch fire.
3. The smart socket is equipped with a laser anti-theft lock, which alarms instantly and is foolproof.
4. With charging protection function, when the charging plug is manually pulled out, the power will be automatically cut off.
5. With overload protection function, overload automatically stops, preventing multiple people from sharing a socket for charging.
The charging station host is the gateway of this system, through which the information on the socket can be smoothly transmitted to the mobile telecommunication network, and then connected to the computer of the property management center through the telecommunication network. At the same time, it also has the function of identifying the charging user. After the user swipes the card on the host, the smart socket can start charging the electric vehicle after the identity is confirmed. The user's electricity bill is stored in the database of the management center. When a user starts After charging, the computer in the management center will deduct the user's corresponding electricity bill according to the charging time.
The computer of the property management center can also be connected to the Internet at the same time, so that users can know the charging status of their vehicles through the network at home, can stop charging at any time, and can also know the balance on their own account, and can recharge in time. It can be used as a charging socket. After being unplugged maliciously or when the battery is fully charged, the user can also be notified immediately through the mobile phone.
The picture on the left is the physical picture of the host of the charging station, the picture of the smart socket on the right
The establishment of community electric vehicle charging stations has brought great convenience to users, and it has made us feel the fruits of the development of "Internet of Things" technology.
The development of the Internet of Things technology will definitely bring us a very bright future, and will also make our world more intelligent and charming.
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