The application of angle displacement photoelectric coding in an automatic meter reading system

A angle displacement transduced by photoelectric coding is presented in this paper. The coding device is used to an Automatic Meter Reading (AMR) system for water, gas and watt-hour meters. The photoelectric coding consists of five light emitters and five receivers and two coding tracks with twenty codes . Data corresponding to angle of number wheel is transformed to code, which can be collected by the management system with a data concentrator.