Arm-based Ethernet Meter Reading System And Controller Design

With the development of economy and the improvement of people's living standards, house meters, such as ammeter, water meter and gas meter, are used more widely. At the same time, reading the meters has become a mass and troublesome work. Traditional ways no longer adapt to the development of society any more. However, with the help of computer technology and communication technology, it's possible to read meter automatically. All kinds of AMR (Automatic Meter Reading) systems come to existence, which not only substitute the manual work but also establish the base for better service.This paper introduces some familiar AMR systems, analyzes their characteristics at first, and keeps emphasis on the design of controller based on Ethernet AMR system. Chapter 1 introduces the status of AMR technology nowadays. Chapter 2 analyzes the frame of common AMR systems and describes the way of upward/downward communications in detail. Chapter 3 introduces the Ethernet AMR system specially, pointing out it's a promising AMR technology. Chapter 4 and 5 describe the design of the controller in detail, both hardware and software. The MCU used and embedded system established are also introduced detailedly. Last chapter is the end, which depicts the difficulty in our AMR system and the future development of AMR technology.