As a kind of network technology with super wide coverage and obvious transmission rate advantage, wireless network has become the most widely used network technology in people’s daily life. However, when information is transmitted and exchanged in wireless networks, information blocking often occurs, which restrains the transmission rate. Therefore, the signal monitoring technology in wireless network is of great practical significance. This paper will focus on the breakthrough of wireless WLAN packet capture and protocol analysis technology in computer communication technology, and use the grid programming method to analyze the implementation process of the whole system function module. Based on this technology, a wireless network detection system is developed in VC + + 7 environment, and the algorithm flow chart is given. Finally, the system designed in this paper will be tested on Linux platform. The experimental results show that the wireless network signal monitoring technology proposed in this paper can monitor the operation of wireless network in real time. The corresponding detection accuracy error is controlled at about 1%, and the corresponding detection accuracy can reach about 60% in different signal background.

无线网络作为一种覆盖面广，传输速率优势明显的网络技术，已经成为人们日常生活中使用最广泛的网络技术。然而，当在无线网络中传输和交换信息时，经常发生信息阻塞，这限制了传输速率。因此，无线网络中的信号监控技术具有重要的现实意义。本文将重点探讨无线WLAN数据包捕获和协议分析技术在计算机通信技术中的突破，并使用网格编程方法来分析整个系统功能模块的实现过程。基于该技术，在VC ++ 7环境下开发了一种无线网络检测系统，并给出了算法流程图。最后，本文设计的系统将在Linux平台上进行测试。实验结果表明，本文提出的无线网络信号监控技术可以实时监控无线网络的运行情况。相应的检测精度误差控制在1％左右，不同信号背景下相应的检测精度可以达到60％左右。