This paper describes the current status of the various meter readings and analyzes their respective advantages and disadvantages. And then it leads to the wireless meter reading system based on wireless modules. The wireless meter reading system can save time, manpower, resources, improve efficiency and reduce property costs, and it can send meter data to the user's property or water companies automatically, accurately and timely. As the wireless module is the key part of the system, we focus on the wireless modules related topics. Practice has proved that the wireless meter reading system is feasible, and it will be the future trend. |