Research Of Virtual Transfer Technology Based On Two-dimension Code

With the high-speed development of the modern city, the road traffic has been increasingly saturated, which brings many problems such as traffic congestion, air and noise contamination and etc. As the main form of urban public transport and development trend, rail transportation belongs to the green environmental protection, convenient and efficient traffic system, which has the advantage of saving energy; saving land; large unit volume; low pollution; and safety. Recently, major domestic urban rail transits develop rapidly, and have changed from line to network. The AFC system as the interaction service window between rail transit and passengers, its importance is self-evident.Firstly, the article analyzes the present situation of Shanghai rail transit, and introduces the existing AFC operating problems of circuit transfer. After 20 years of construction and development, total mileage of Shanghai rail transit has more than 400 kilometers, which has widely covering area; complex road network; and lots of transfer points. After the network operations, basically achieved single ticket transfer between line and line station. However, due to the restriction of some objective factors, part of charge zones of transfer station is unable to connect. Those stations not only need transfer outbound, and support public transportation card or stored-value CARDS only. The one-way ticket passengers feel inconvenient to go through these transfer points, which is caused by rebuy or making a detour.Secondly the author combined with rich experience of operating AFC system, researching the demand of Shanghai rail transit using one-way ticket to achieve virtual transfer. Solution of virtual transfer of one-way ticket is using two-dimensional code which has widely application prospects. Through adequately describe how virtual transfer based on the two-dimensional code; physical architecture; and transaction data processing, and realize the process of virtual transfer of one-way ticket.The last part of article compare the virtual transfer plan based on two-dimensional code with other projects, and give the comprehensive score. Furthermore, related simulation test and function test has test at the simulation test platform of Shanghai rail transit. In this paper, provides effective solution to solve the problem of current one-way tickets unable to virtual transfer. This research has siginificant application value of Shanghai rail transit AFC system, and provides better protection of residents in Shanghai which have more convenient travel.