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In order to reduce the stampede occurred frequency, designed and implemented based on DHCP network Protocol web traffic density monitoring system, the system through the DHCP network Protocol will be the scene of the personnel image real-time transmission to the server, shaped the authentication server and test server, using a service oriented architecture and the technology of blending based on role access control permissions management monitoring, monitoring personnel according to different permissions to enter web monitoring platform, web monitoring platform in real time through the network analysis, control and monitoring terminal monitoring and management flow image data model, and use the pixel density threshold based on personnel independent alarm module to call the police, traffic density eventually reduce the personnel stampede occurred. Adopts the system of application experiments, at the entrance to the station monitoring stations on Matlab7.0 platform to complete the test, the experiment of web communication divided into external interference can be ignored and the external disturbance should not be neglected two cases. Simulation time was 3 000 seconds, the experimental results show that the system presented in this paper to the crowded area monitoring accuracy of about 97%, the average error is around 3%, while traditional design error is above 20%, showed in this paper, the robustness of system is stronger, more suitable for popularization and application.