Three meters refer to water meters, electricity meters and gas meters, which are used by every household in daily life. They are mainly used to count the amount of water, electricity and gas used as evidence of payment. In the past, water, electricity and gas were all done in the form of artificial meter reading. The statistical cycle is particularly long, and the work of meter reading may not be completed in a week when the households are not at home or in densely populated places. Now, with the development of various technical forces, the word "intelligent" has been given the title. The development of intelligent meter saves a lot of manpower and improves work efficiency.
 

"Intelligence" has enabled all walks of life in this era. With the combination with all walks of life, it will promote explosive growth and form a new wave of high-speed development, including all industries including instruments and meters. This is particularly obvious in the smart meter industry. Although the use of smart meters has exceeded 400 million, according to the national 13th five year plan, in 2020, China will fully realize 100% coverage of smart meters, which means that the market demand of smart meters and the future development potential of smart meter industry are huge. At the same time, there are also smart cities, urbanization and other national policies, which bring unlimited business opportunities for enterprises in the intelligent measurement industry.

From the technical point of view, Lora technology is widely used in intelligent hydropower meters, but with the continuous Sino US trade war, the development of Lora technology in China will be subject to greater resistance. In China, because of the favor of national policies, telecom operators and large manufacturers in the industry, the application of Nb IOT technology in the meter industry is the general trend, and the development of Nb IOT technology is in full swing, laying a solid foundation Its absolute status. While NB IOT technology has high cost and energy consumption, weak indoor and underground environment signals and other problems, it also faces the "ceiling". What is above the ceiling, it is necessary to develop in this respect, which is the place to break through in the future.
 

From the current market analysis, 5g has begun to be commercially used, while 5g technology is harmless to the development of Internet of things. The development of Internet of things requires a very high broadband. The combination of Internet of things and smart city will be the general trend. Not only the government, but also major operators will increase the construction of Internet of things communication infrastructure. Some professionals said that the Nb IOT triple watch is likely to be the development focus in 2019. Currently, the Internet of things gas meters are mainly 2G, but in the trend of 2G off grid, nb-iot gas meters mature to commercial use in 2018, and are expected to explode in 2019.