QD2000 is a box-type multimedia terminal that supports multiple devices and applications. Its main application is a portable accusation system based on the wireless ad hoc network equipment platform. This system is a scaled-down version of the accusation management system, which simplifies the replication configuration of the accusation management system and integrates the small accusation system of the on-site server and the accusation server. Only one software is needed, which can realize functions such as GIS system and video monitoring. The GIS system uses map resources to obtain the location information of the device in real time from the map, and supports mapping and other functions. Video surveillance can view video information on the 4th and 9th screens, and play the specified video in full screen. Users can comprehensively manage devices through a portable allegation platform. You can choose to plug and unplug multiple types of self-organizing network modules.