For problem that transmission data in TD-SCDMA communication system of coal mine easily loss or change influenced by environmental factor. the paper proposed a scheme of using message middleware technology in coal mine communication system. introduced four-layer architecture of the communication system. and described realization of the message middleware technology used in the coal mi... https://www.lightemupsequences.com/hot-mega-Esko-Nexus-HeightMaster-Vented-Safety-Helmet-big-savings/