The Design and Realization of Acquisition Equipment in Remote Reading System Base on Low Voltage Power Line Carrier

The acquisition equipment is the most important part in remote reading system base on low voltage power line carrier, it decides the data exactness and stabilization of the whole system. First to introduce the hardware design of an acquisition equipment; second to give an especial method to design the acquisition equipment software, this especial method is based on a storage strategy named token-ring, using this method, we not only can make sure the exactness, the safety of the data in memory and transmission about the acquiring data, but also can modify the inaccurate data via using the accurate data, this method boosts up the acquisition equipment. The acquisition equipment has been used in some city in Henan province, from the practically using, it approves that this storage strategy is useful.