The principle of the Internet of Things technology is actually to build an "Internet of Things" covering all things in the world on the basis of the computer Internet, using sensing technology, data communication and other technologies. By placing things in this network, "things" can "communicate" with each other without human intervention. Its essence is to use sensor technology to realize automatic identification of objects and interconnection and sharing of information through networking.
The three key technologies and areas of the Internet of Things include: sensor technology, communication technology, and information processing technology. Inclusion is not limited to: public affairs management (energy saving and environmental protection, event warning, etc.). Natural detection (geological monitoring, etc.). Sensor technology is a key technology commonly used in terminals, which can transform the transformation of objects into digital signals that can be processed and transmit them to computers for processing. Similar to human eyes, ears, noses, etc. For example, temperature sensor, the change of temperature affects the change of internal electrical signal, and shows a certain rule. The change of temperature can be obtained through the processing of the electrical signal by the computer. Since the development of science and technology, information processing technology has been relatively mature, and will not be repeated here.
Communication technology is the key to "networking" in the Internet of Things, and wireless communication is usually used in the Internet of Things. It has several advantages. First, it is easy to deploy the network. Only the sensor system and gateway relay need to be installed. Compared with traditional wiring, it saves time and cost; secondly, wireless communication is relatively concealed, wireless communication is invisible and invisible, to avoid line damage and interception, and to ensure communication security; in addition, for moving objects, the use of wire is obviously inappropriate.
Correspondingly, the Internet of Things also puts forward higher requirements for wireless communication. Security is the primary consideration. If our data is stolen during transmission, it will cause incalculable losses to the entire system. Real-time transmission is also an important requirement. If the data transmission delay is too long and packet loss occurs, it will cause the system to make a mistake in judgment and make erroneous feedback. The cardinality of the Internet of Things is large, and the amount of data transmitted individually is small. This requires the Internet of Things to have a low-power design to meet the networking requirements of different regions. After all, not all regions have sufficient power support.
So is there a technology that can meet the above requirements? It is natural for people to think of the 5G technology that will be popularized. It is undeniable that the advanced nature of 5G technology and there are already rich application cases, but it does not meet all application scenarios. DDA wireless communication technology is a technology that Shenglu IOT has completely independent intellectual property rights. It is very suitable for application scenarios such as multi-terminal, small data volume, low power consumption, low cost and high reliability in the era of Internet of Everything.
