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针对基于Ad-hoc的设备发现机制仅适合发现小型局域网内的网络摄像机(IP Camera),分析并提出了一种带有发现代理(Discovery Proxy)的跨局域网设备发现方法。该方法采用基于ONVIF的网络动态发现协议(WS-Discovery)和g Soap开发工具包,设计和实现了一种设备发现方法。通过该方法,使得网络视频监控客户端系统可以跨越多个局域网自动发现网络摄像机并获取服务地址。实验结果表明,该方法能够有效发现多个局域网中的所有网络摄像机并且便捷、高效地自动连接网络摄像机。
The Ad-hoc based device discovery mechanism is only suitable for discovering the IP Camera in a small local area network (LAN) and analyzes and proposes a cross-LAN device discovery method with Discovery Proxy. The method is based on ONVIF Network Dynamic Discovery Protocol (WS-Discovery) and g Soap Development Kit, designed and implemented a device discovery method. By this method, the network video surveillance client system can automatically discover the network camera and obtain the service address across multiple local area networks. The experimental results show that this method can effectively find all the network cameras in multiple LANs and connect the network cameras automatically and efficiently.