In 2009July" bus station multimedia information publishing and monitoring platform project" in Jilin Province officially opened, grid-connected operation. Network topology and architecture of Heilongjiang province for reference. Site construction by the Jilin provincial government led by the strong support. The first input in the construction of formal operation of long-distance passenger station 55, high-definition digital display terminal equipment more than 400blocks, the framework of advertising terminal more than 300 block