Underground communication system based on Internet of Things technology and application thereof

Abstract

The invention relates to an underground communication system based on an Internet of Things technology and an application thereof. Each underground roadway local area network is connected with a surface data center through a wired and wireless mode or a wired and wireless exchange mode. The underground roadway local area network comprises: a personnel wearing node, a vehicle assembling node, an environment monitoring node, a roadway transmission and positioning node and a roadway server. The personnel wearing node, the vehicle assembling node and the environment monitoring node acquire information and upload the information to the roadway server through the roadway transmission and positioning node. The roadway server transmits the information to the surface data center so as to perform comprehensive processing and analysis. In the roadway, double-frequency wireless information transmission is used, which guarantees the long distance transmission and reduces power consumption. The roadway server is gateway equipment which takes an independent roadway scope as the local area network. Mobility is strong. The comprehensive processing and transmission of the single roadway information can be realized. Personnel positioning is combined with the vehicle positioning, which can effectively avoid an electromagnetic shielding phenomenon.

Description

technical field [0001] The invention relates to an underground communication system and application based on Internet of Things technology, belonging to the field of Internet of Things and wireless sensors. Background technique [0002] Today's underground communication solutions have two methods: wired and wireless. Among them, the wired communication mainly adopts the bus method, and the wireless communication mainly includes WIFI and underground PHS. The wired method not only increases the laying cost, but also is not conducive to the modification of completed projects, and WIFI and underground PHS are difficult to meet the requirements of low power consumption. [0003] In order to overcome the deficiencies in the prior art, Chinese patent CN100501133C discloses a sensor network-based underground safety monitoring system and method, but its disadvantages are: [0004] 1. Failure to achieve independent management of the underground network, resulting in a break at a cert...

AI Technical Summary

Problems solved by technology

[0004] 1. Failure to achieve independent management of the underground network, resulting in the breakage of a link at a certain point, the downstream part of the breakpoint will completely collapse, and the downstream information will not be able to be recorded

[0005] 2. All underground wireless communications use the same frequency band, but in mines, different environments absorb different wireless spectrums, and the same frequency band has different communication distances in different places. Therefore, the use of a single frequency cannot well solve data forwarding and The coexistence of base station positioning

[0006] 3. The positioning of personnel inside the vehicle is not realized. When the personnel are inside the vehicle, electromagnetic shielding prevents personnel from communicating with the base station for positioning

[0007] 4. The positioning function should not use the way that the node to be positioned indirectly communicates with the positioning node of the base station, otherwise due to the existence of the network topology, the real position of the person cannot be reflected

Images