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to share parking resources and improve parking utilization and user convenience. The system can be compatible with the mobile phone mode and RFID mode. Through the app software on the mobile phone。The Internet of things (IOT) is the "Internet connected with all things". It is an extension and expansion network based on the Internet. It combines various information sensing devices with the Internet to form a huge network, realizing the interconnection of people, machines and things at any time and any place.
The Internet of things is an important part of the new generation of information technology. IT industry is also called pan Internet, which means that things are connected and everything is connected. Thus, "the Internet of things is the Internet of things". This has two meanings: first, the core and foundation of the Internet of things is still the Internet, which is an extension and expansion of the network based on the Internet; second, its user end extends and expands to any goods and goods, for information exchange and communication. Therefore, the definition of the Internet of things is a kind of network that connects any item with the Internet according to the agreed protocol through radio frequency identification, infrared sensors, global itioning system, laser scanners and other information sensing devices to exchange and communicate information, so as to realize the intelligent identification, itioning, tracking, monitoring and management of items
ranging from satellite accuracy， and greatly improves the military combat effectiveness， which is the key to the future military reform Key .。The basic characteristics of the Internet of things from the perspective of communication object and process, the information interaction between things, people and things is the core of the Internet of things. The basic characteristics of the Internet of things can be summarized as overall perception, reliable transmission and intelligent processing [5].
Overall perception - it can use radio frequency identification, two-dimensional code, intelligent sensors and other sensing devices to sense and obtain all kinds of information of objects.
Reliable transmission - through the integration of Internet and wireless network, the information of objects can be transmitted in real time and accurately for information exchange and sharing.
Intelligent processing uses various intelligent technologies to analyze and process the data and information perceived and transmitted to realize the intellectualization of monitoring and control. According to the above characteristics of the Internet of things, combined with the viewpoint of information science, around the flow process of information, we can conclude the functions of the Internet of things in processing information
(1) The function of obtaining information. It mainly refers to the perception and recognition of information. The perception of information refers to the perception and sensitivity of the attribute state and its change mode of things; the recognition of information refers to the ability to expss the state of things in a certain way. (2) The function of transmitting information. The main task is to send, transmit and receive information, and finally transfer the acquired state information and its change mode from one point in time (or space) to another point, which is commonly known as the communication process. (3) The function of processing information. It refers to the process of information processing, using existing information or perceived information to generate new information, which is actually the process of decision-making. (4) The function of application effect information. It refers to the process in which information finally plays its role. There are many forms of expssion. The more important one is to make the object always in a p designed state by adjusting the state of the object and its transformation mode [5].
There are 1001 ~ 10K logic gates or 10001 ~ 100k transistors in VLSI.。Radio frequency identification technology
When it comes to the Internet of things, it is necessary to mention the radio frequency identification technology which has attracted much attention in the development of the Internet of things. RFID is a simple wireless system, which consists of a interrogator (or reader) and many responders (or tags). The label consists of coupling elements and chips. Each label has an electronic code with an extended term and is attached to the object to identify the target object. It transmits radio frequency information to the reader through antenna. The reader is the device to read the information. RFID technology enables the object to "speak open". This gives the Internet of things a feature that can be tracked. That is to say, people can grasp the exact location of the goods and their surroundings at any time. According to retail analysts at Sanford C. Bernstein, Wal Mart can save $8.35 billion a year on this feature brought by Internet of things RFID, most of which is due to labor costs that do not require manual viewing of incoming barcode. RFID has helped retail industry solve two major problems: goods shortage and loss (products lost due to theft and supply chain disruption). Now, Wal Mart has lost nearly $2 billion a year in case of theft.
Sensor network
MEMS is the abbreviation of micro - electro - mechanical systems. It is a micro device system which consists of micro sensor, micro actuator, signal processing and control circuit, communication interface and power supply. The goal is to integrate the acquisition, processing and execution of information, and form a multi-functional micro system, which is integrated into large-scale system, so as to greatly improve the automation, intelligence and reliability level of the system. It is a more general sensor. Because MEMS, gives ordinary objects new life, they have their own data transmission path, storage function, operating system and special application program, thus forming a huge sensor network. This enables the Internet of things to realize the monitoring and protection of people through articles. In case of drunk driving, if micro sensors are implanted on both the car and the ignition key, when the driver who drinks the wine pulls out the car key, the key can detect a breath of wine through the smell sensor, and immediately notify the car to "suspend the start" by wireless signal, and the car will be in a rest state. Meanwhile, the driver's mobile phone sends a text message to his relatives and friends, tells the driver where he is, and reminds his relatives and friends to handle it as soon as sible. Moreover, clothes can "tell" how much water and detergent are most economical in the future; folders will "check" what important documents we forget to bring; labels of food and vegetables will introduce customers' mobile phones whether "themselves" are truly "green and safe". This is the result of "things" in the Internet of things world.
video recorder， computer (microcomputer)， electronic organ。video disc playerClassification by use: integrated circuits can be divided into TV integrated circuits by use. Integrated circuits for audio communication。深圳市声瑞电子科技有限公司
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