一种互联网内容安全检测过滤系统

Internet content information detection and filtration system

为了解决互联网上内容安全问题,提出一种互联网内容安全检测系统。该系统包括四层,即网络层、信息识别层、信息流过滤层和内容检测层。网络层中是互联网上通过的文本信息、音频信息以及图像与视频信息等。这一层网络中的信息可以通过网络抓包器来捕获网络数据包,并送给第二层信息识别层进行分类。信息识别层中主要是对从网络上来的信息进行识别,分清楚它们是文本信息、音频信息还是图像及视频信息。信息流过滤层主要任务是对信息识别层传来的信息进行多特征融合判定。对有用的信息进行过滤,对信息的格式进行标准化等。内容检测层是整个系统的核心部分。它的主要功能是通过模式匹配,检测过滤层传输上来的信息中是否含有特定的内容。通过这四层的工作,可以检测过滤互联网上的内容信息。

In order to solve the problem of Internet content security, an Internet content information detection and filtration system was present. The system included four layers： network layer, information identification layer, information stream filtration layer and content detection layer. In the network layer, there were text information, audio information, image information and video information etc. The information in this layer could be captured by network sniffer, and then sent to the second layer. The second layer was information recognition layer, the function of this layer was to classify the information to text information,andio information, image information and video information etc. The third layer was information stream filter layer, the function of this layer was to fuse the information transferred form the nether layer by multi-characters, and filter the useful information, standardize the information format. The last layer was the core of the whole system. Its main function of this layer was to filter the information to find the special content information by pattern match algorithm.