Design And Implementation Of Pingan Car Wi-Fi System

The development of internet has led a global information revolution,having influenced each field.The global network traffic is getting a rapid growth,among which the mobile network has become the mainstream,with the mobile data traffic playing a bigger and bigger part within.According to statistics,China's average household mobile data traffic in August 2016 has exceeded 800M.Up to December 2016,the scale of online cab users has reached 225 million,a growth rate of 41.7%.Online navigation,grabbing orders and receiving payment by means of internet are needed by the car driver during the trip.At the same time the passengers use their phone,Pad or other devices to browse news,check his micro-blog,chat on wechat,listen to music,watch videos,etc,all having a huge and clear demand on traffic.Target at vehicle-mounted traveling,the research has looked into and realized the manageable,performable,and extendable software and hardware integrated new Wi-Fi product,that is PingAn vehicle-mounted Wi-Fi terminal device.It is wireless module integrated with WLAN AP module.The RF wireless data communication module is a modulation-demodulation module of the public network operator's communication standard(LTE/WCDMA/CDMA/GPRS).It makes use of the backhaul of the operator,assigning the exclusive Access Point Name(APN)through Home Subscriber Server(HSS).The PGW(PDN Gateway)is for APN configuration,and vehicle-mounted Wi-Fi recognition,connecting to AC server through a specific network.The AAA server is for the identification and billing the terminal Vehicle-mounted Wi-Fi user,realizing the coverage of WLAN at a low cost,and a excellent data transmission.The uploading rate is up to 100Mbps,and the downloading is 300Mbps,compatible with 802.11n/b/g standard.The vehicle-mounted Wi-Fi devices realized the transformation from 3G/4G/LTE to Wi-Fi,and through cloud computing,it has realized cloud integrated management,providing multiple identification means and behavior management ability,making it easy for the users to enjoy listening to music,watching videos,playing games,receiving information,and other internet services at any time.Through the data collection of users' clicks within the application and their online using behaviors,and massive data statistics and analysis,it pictures out the users' images and provides a more valuable personalized service to the users.