METHOD AND SYSTEM FOR LARGE-SCALE REAL-TIME TRAFFIC INDEX SERVICE BASED ON DISTRIBUTED FRAMEWORK

摘要

#$%^&*AU2017100410A420170511.pdf#####Abstract A method and system for a large-scale real-time traffic index service based on a distributed framework, which provides a more accurate, useful traffic information service for the vast numbers of travelling users. The system is divided into a resource layer, an index computing layer, a user service layer, an application scheduling layer, and an information interaction and display layer; the resource layer provides infrastructure resources; the index computing layer invokes a plurality of computing nodes for computing resources in the resource layer, processes traffic index data source data using a distributed framework, and after computing, stores same in an unstructured database; the user service layer invokes the user data stored in the structure database of the resource layer to complete the corresponding user service content; the application scheduling layer receives various user requests sent by the information interaction and display layer, invokes the index computing layer and the user service layer to complete the user requests, and feeds back the request results to the information interaction and display layer. The method comprises the four steps of real-time traffic index computing, user service interface response, application service request and distribution, and information display service.1/3 Resource layer Traffic index data Computing resources Stnctured database Unstructured database source 4 4 Data access and resource invoking Data access and resource invoking Index computing layer User service layer Index updating module Daemon thread module User management Path management Data cache module module module Index computing invoking User service invoking Application scheduling layer Index data acquisition User data acquisition Service request receiving module module and dishibution module Interaction application invoking Infornation interaction and display layer Map service module Infonnation display module Fig. 1