Research On Data Circulation Mechanism And Key-Technology Of High Speed Rail Sharing Vehicle

With the diversification of passenger travel modes,in order to achieve the goals of protecting passenger’s privacy information and completing the interconnection of passenger travel data between high-speed railway and other modes of transportation,many scholars have conducted relevant research.The contents or scopes mainly focus on the exchanging transmission technology,encryption attributes,etc.Faced with today’s highly sensitive and competitive passenger service environment,in order to achieve the goal of providing "door-to-door" full-chain service for passengers,passenger data flow between different modes of transportation is particularly significant.This is mainly because the smooth flow of passenger data can promote the further expansion of highspeed rail passenger service,such as "high-speed Rail + shared car" business.At the same time,the emerging Internet technology represented by block chains are widely used.It has the characteristics of data traceability,loss prevention and non-tamperability.It is trying to promote the formation of new business and new forms of passenger data flow between high-speed rail and other different modes from the bottom technical level.For this reason,from the perspective of data flow,this paper studies the key supporting technology of passenger data flow based on block chain technology,and achieves the data flow security management business in the business scenario of "high-speed rail + shared car".According to the framework of scientific paradigm design,the research contents of this paper can be divided into the following parts: Firstly,on the basis of reviewing the existing research in China and abroad,the theoretical results of data flow technology in passenger travel process are sorted out;at the same time,combining with the development trend of block chain technology,the applicability of block chain compared with other data flow technologies is obtained through comparative analysis.Second,starting from the applicable scenarios,this paper extracts the relevant bodies involved in the data flow process of "high-speed rail + shared car",puts forward the network model of passenger data flow and designs the overall mechanism of passenger data flow of "high-speed rail + shared car" based on this model through the close combination with business logic.Third,by analyzing the technical requirements of the platform and researching the key supporting technologies,the overall business logic and network architecture of passenger data flow in the scenario of "high-speed Rail + shared vehicle" are created;and how to solve some painful and difficult problems such as passenger data loss,data security,data traceability,and data equity distribution,etc.by using block chain technology is analyzed.Fourth,the block chain application structure and state transition mechanism of passenger data flow in the scenario of "high-speed Rail + shared car" are defined,and the user behavior information chain and the shared car supply chain are designed.Among them,the user behavior information chain mainly includes user location,rental,payment,getting on and off;and the shared car supply chain mainly includes the basic parameters information,maintenance information,and real-time information such as path and speed generated in the process of use.Both of them are stored in the form of alliance chain,relying on the notary Union and the whole public chain of traffic information to interact and share the main and side chain data.Fifth,it distinguishes the categories of passenger privacy data in the business scenario of "high-speed Rail + shared car",compares the similarities and differences between block chain and traditional technology system for passenger data protection,chooses the technical direction of block chain in the passenger data protection area which is in line with the content of this paper,and introduces hash encryption algorithm and data signature algorithm into the business scenario of "high-speed Rail + shared car",and applies them to the business scenario of "high-speed Rail + shared car";based on this,the encryption system of passenger data flow is constructed by using elliptic curve digital signature and optimized SHA256 algorithm.Finally,on the basis of user behavior information chain and shared automobile supply chain,the technical requirements of shared automobile technology parameters traceability and passenger trustworthiness generated in the business scenario are achieved.The research and application of block chain technology in the field of passenger service represented by "high-speed Rail + shared car" is in its infancy,but it is considered as a key supporting technology to realize the transformation from traffic information internet to traffic value internet.Block chains,with their traceability,security and nontamperability,can play an obvious role in improving some pain points of data flow,which is conducive to reducing information friction,breaking through information islands and liberating more data.This paper is a part of the typical research results in this field.The research results are complementary to those of high-speed rail or traffic data flow in the existing literature.The ideas and methods proposed in this paper can provide inspiration and experience for the follow-up related research.