Design of the CAN bus network print server based on ARM;

This paper introduces the principle and process to implement the network print server.

Charging system of print service with NT network;

Its innovational measures include giving priority to the entity status of enterprise technological innovations,adopting a provincial concerted cooperated common-share management,creating a flexible,open,incentive policy environment,building a comprehensive online service function,and establishing a secure,trustable management and service advantage.

The article gives an account of the developing stage of online service for future oil product retail industry and the problems to be solved, pointing out that non-fuel service by gas stations is an important approach to increasing economic benefits of gas stations.