The Research Of Prepaid Water Meter Based On Infrared Remote Control

A design of prepaid water meter that based on infrared remote control is introduced in this thesis. Currently the prepaid water meters are mainly card style that is deficient in applying. Making use of infrared remote control technology, a new water meter is designed which can not only realize all the functions of prepaid water meter but also avoid the limitation of card style water meter. The main contents of this thesis are as follows: the hardware of water meter system such as the circuit of infrared communication, the power module, the metric circuit, the read-write implement of PC etc; the software design and interference resisting; infrared communication protocol and encryption techniques; the design of the database management system. In addition the hardware interference resisting, infrared communication interference resisting and the linear demarcation of water meter are included in this thesis also.