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本文结合我国农村数字电影流动放映的实际情况和具体的运营需要,设计并实现了一个基于GPS卫星定位和GPRS数据传输的广告运营支撑平台。阐述了系统的主要功能和体系结构。解决了无线通讯协议设计、算术编码压缩算法、Reed-Solomon纠错编码、AES-128-OFB安全认证控制、并发数据采集、负载均衡、超大容量运营监控数据的快速查询和报表生成、WebGIS可视化地图、通用任务机制等关键技术问题。目前全网近5000套设备的实际运营情况表明,该平台设计科学,功能全面,性能优秀,可用性、易用性、鲁棒性、可扩展性良好,完全可以适应我国农村数字电影流动放映的恶劣环境和大规模广告运营的需要,并可探索向城市影院数字电影广告运营系统应用的可能性。
In this paper, based on the actual situation of digital movie streaming in rural areas of our country and specific operational needs, this paper designs and realizes an advertising operation support platform based on GPS satellite positioning and GPRS data transmission. Elaborated the system main function and the system structure. Solve the wireless communication protocol design, arithmetic coding compression algorithm, Reed-Solomon error correction coding, AES-128-OFB security authentication control, concurrent data acquisition, load balancing, ultra large capacity operation monitoring data quick query and report generation, WebGIS visual map , Common mission mechanism and other key technical issues. At present, the actual operation of nearly 5,000 devices on the entire network shows that the platform is scientifically designed, fully featured, excellent in performance, usability, ease of use, robustness and scalability, which can completely adapt to the harshness of the flow of digital cinema in rural China Environment and large-scale advertising operations, and explore the possibility of applying to the digital cinema advertising system in urban cinema.