Riot will drill drill networking ChuTu emergency system set safety practice exercises, safety education, networking alarm, mobile positioning alarm, phone alarm, alarm, industry in multicast, police practice more, a p happens, more area marshalling, alarm, several linkage, kind, materialize, map popup window, video linkage, monitor screen, intercom, real-time remote radio is an organic whole, It has the characteristics of timeliness, convenience, concealment and so on. It greatly solves the problems and defects of the existing alarm, and meets the requirements of various kinds of safety education, early warning drills and actual combat, public security prevention and control, riot control, emergency and mass prevention