Design and application of multi-functional wireless information transmission platform based on 802.11
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摘要: 针对现有煤矿井下人员定位系统存在功能单一、定位精度不高的问题，设计了一种基于802.11n的煤矿本安型多功能无线传输平台。该平台基于802.11n传输协议和采用信号强度测量模块，不仅实现了数据、语音和视频等的高速传输，还可同时通过WiFi信号实现井下人员的实时定位。煤矿井下实际测试结果表明，该平台的无线传输速率达到了120 Mbit/s，信号覆盖范围为500 m，实时定位精度为9.68 m，满足了煤矿安全信息的传输要求。Abstract: In view of problems of single function and low positioning accuracy existed in underground personnel positioning system, an intrinsic safety and multi-functional wireless information transmission platform based on 802.11n was designed. The platform is based on 802.11n transmission protocol and uses signal strength measurement module, which not only can realize high speed transmission of data, voice and video, but also can realize real-time positioning of underground personnel through WiFi signal. The actual test results show that wireless transmission rate of the platform reaches 120 Mbit/s, the signal coverage is 500 m, real-time positioning accuracy is 9.68 m, satisfy requirements of coal mine safety information transmission.
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