针对基于位置的服务在旅游、查询路线、移动终端定位服务等场合的广泛应用,利用Android丰富的APIs,通过申请Google Map API Key实时调用Google Map,设计并实现能以经纬度查询的手机终端定位软件,同时支持地图的缩放、视图的切换等功能...针对基于位置的服务在旅游、查询路线、移动终端定位服务等场合的广泛应用,利用Android丰富的APIs,通过申请Google Map API Key实时调用Google Map,设计并实现能以经纬度查询的手机终端定位软件,同时支持地图的缩放、视图的切换等功能。测试运行结果表明,手机定位软件能够准确定位目标位置,灵活切换视图和缩放视图,为用户提供了准确、便捷的定位服务。展开更多
This paper presents a vehicle navigation and monitoring system scheme based on GIS/GPS/GPRS. The whole system consists of vehicle terminal and monitoring center, the monitoring center and the monitoring terminal compr...This paper presents a vehicle navigation and monitoring system scheme based on GIS/GPS/GPRS. The whole system consists of vehicle terminal and monitoring center, the monitoring center and the monitoring terminal comprises a communication server, communication server is only responsible for data storage and forwarding, the monitoring functions are completed by the monitoring terminal. Therefore, after the map matching, control terminal is performed on the device display to achieve real-time monitoring of vehicle location. The monitoring terminal can also be parameters of the moving vehicle accurate location, velocity and state the necessary query and transmission scheduling control instruction to carry out scientific scheduling and management, and improve operation efficiency. If the vehicle encountered an unexpected condition, harm or left the restricted area, it also can send alarm information to the monitoring terminal, and then the terminal can receive assistance and support in time.展开更多
Along with the rapid development of communications,the Internet,and smart terminals,mobile Internet has become a hot topic with both opportunities and challenges.In this article,a new perspective on edge content deliv...Along with the rapid development of communications,the Internet,and smart terminals,mobile Internet has become a hot topic with both opportunities and challenges.In this article,a new perspective on edge content delivery service for mobile Internet is described,based on cooperating terminals.A mobile cloud architecture named Cloudlet Aided Cooperative Terminals Service Environment(CACTSE) is proposed as an edge network service environment.The Service Manager(SM),a cloudlet like module,is introduced into the local service domain in order to manage the in-domain terminals and help coordinate the content delivery requests for better bandwidth efficiency as well as user experience.The reference model is presented in this article with architecture and mechanism design.Moreover,the research progress and potential technology trends of CACTSE are analysed based on the related R&D directions.展开更多
With the continuous growth of civil aviation passenger traffic, airlines and airports must constantly improve the level of operation and management, in order to meet the high quality and the high level of passenger de...With the continuous growth of civil aviation passenger traffic, airlines and airports must constantly improve the level of operation and management, in order to meet the high quality and the high level of passenger demand for personalized service. This paper puts forward that the airport passenger personalized service system in the era of big data, which can achieve high precision indoor and outdoor positioning seamless switch through using the integration of GPS and Beacon technology. Personalized service client for mobile intelligent terminal was developed to provide more convenient, efficient, dynamic and personalized airport information service for airport passenger.展开更多
文摘针对基于位置的服务在旅游、查询路线、移动终端定位服务等场合的广泛应用,利用Android丰富的APIs,通过申请Google Map API Key实时调用Google Map,设计并实现能以经纬度查询的手机终端定位软件,同时支持地图的缩放、视图的切换等功能。测试运行结果表明,手机定位软件能够准确定位目标位置,灵活切换视图和缩放视图,为用户提供了准确、便捷的定位服务。
文摘This paper presents a vehicle navigation and monitoring system scheme based on GIS/GPS/GPRS. The whole system consists of vehicle terminal and monitoring center, the monitoring center and the monitoring terminal comprises a communication server, communication server is only responsible for data storage and forwarding, the monitoring functions are completed by the monitoring terminal. Therefore, after the map matching, control terminal is performed on the device display to achieve real-time monitoring of vehicle location. The monitoring terminal can also be parameters of the moving vehicle accurate location, velocity and state the necessary query and transmission scheduling control instruction to carry out scientific scheduling and management, and improve operation efficiency. If the vehicle encountered an unexpected condition, harm or left the restricted area, it also can send alarm information to the monitoring terminal, and then the terminal can receive assistance and support in time.
基金supported by the "New Generation Broadband Wireless Mobile Communication Network"Key Project under Grant No. 2011ZX03005004-02the National Natural Science Foundation of China under Grants No. 60971125,No.61101119+2 种基金the Funds for Creative Research Groups of China under Grant No. 61121001the European Commission FP7 Project EVANS under Grant No. 2010-269323the Program for Changjiang Scholars and Innovative Research Team in University of China under Grant No. IRT1049
文摘Along with the rapid development of communications,the Internet,and smart terminals,mobile Internet has become a hot topic with both opportunities and challenges.In this article,a new perspective on edge content delivery service for mobile Internet is described,based on cooperating terminals.A mobile cloud architecture named Cloudlet Aided Cooperative Terminals Service Environment(CACTSE) is proposed as an edge network service environment.The Service Manager(SM),a cloudlet like module,is introduced into the local service domain in order to manage the in-domain terminals and help coordinate the content delivery requests for better bandwidth efficiency as well as user experience.The reference model is presented in this article with architecture and mechanism design.Moreover,the research progress and potential technology trends of CACTSE are analysed based on the related R&D directions.
文摘With the continuous growth of civil aviation passenger traffic, airlines and airports must constantly improve the level of operation and management, in order to meet the high quality and the high level of passenger demand for personalized service. This paper puts forward that the airport passenger personalized service system in the era of big data, which can achieve high precision indoor and outdoor positioning seamless switch through using the integration of GPS and Beacon technology. Personalized service client for mobile intelligent terminal was developed to provide more convenient, efficient, dynamic and personalized airport information service for airport passenger.
