The specific requirements for communication between objects are different. Just as people have different skin tones, come from different regions, and speak different languages.
With water meters, you don't need to send data, and you don't need to send data every day.
For cars, the amount of data to be transmitted is very large, so real-time data is needed.
Other enterprise devices, such as Chinese factories for motors, wireless modules companies roadside streetlights and home speakers, have separate social needs.
Who will meet these fragmented needs?
The answer is: wireless modules. Another value of wireless modules in the IoT industry chain has emerged. The upstream of wireless communication modules is the production of raw materials, such as highly standardized baseband chips.
Downstream is the application area of each section, the distribution is very fragmented. The IoT module itself is located in the middle between the upstream standardized chips and the downstream distributed vertical domains, and must meet the specific needs of different customers and different application scenarios.
Different Solutions of Wireless Modules
2G modules are widely used in early bike-sharing (of course, bike-sharing is starting to experiment with LPWAN technology) and other low data demand solutions.
3G modules are suitable for mobile payment areas where we need to do a lot of research data.
The 4G module is for automotive and video surveillance areas where higher speeds are needed.
LPWAN modules are first commercialized in the area of low power consumption and bad forgery.
Based on the communication technology, wireless communication modules can be usually classified as follows.
2G module is a module that can access the operator's 2G network, and NB-IoT module is a module that can access the NB-IoT network.