Heterogeneous multi-channel wireless sensor network based underground monitoring system

Abstract

The invention discloses a heterogeneous multi-channel wireless sensor network based underground monitoring system and relates to the field of technical application of underground wireless sensor networks. In the invention, a heterogeneous networking mode of combining wired communication and wireless communication is adopted in the network architecture, and star-style topology is adopted in all subnets; a radio-frequency signal air interface and an asynchronous communication serial interface are used for forming two stages of networks by layers to finish the work of data transmission; the network comprises subnet data acquisition nodes ED-S, subnet data convergence nodes AP-S, backbone network receiving nodes ED-M and backbone network convergence nodes AP-M; the subnet data acquisition nodes ED-S comprise a sensor module, an energy management module and a radio frequency module which are mutually connected; and the subnet data convergence nodes AP-S, the backbone network receiving nodes ED-M and the backbone network convergence nodes AP-M comprise an energy management module and a radio frequency module. The invention improves the stability and prolongs the service life of the network and the reliability of communication, and meanwhile, network grouping is quicker, thus the requirement on the application of various wireless sensors can be met.

Description

technical field [0001] The invention belongs to the field of mine safety monitoring, and relates to an underground monitoring system based on a heterogeneous multi-channel wireless sensor network, in particular to a node composition and a communication method of a heterogeneous multi-channel wireless sensor network for mine safety monitoring. Background technique [0002] At present, the mine monitoring in many countries in the world is in the stage of manual monitoring. Because the changes in the mine environment cannot be communicated to the ground monitoring center in time, when a mine disaster occurs, the underground workers cannot evacuate from the danger zone in time, causing great harm. human casualties and economic losses. Due to frequent mine accidents in our country, monitoring and monitoring systems have been installed in many key mining areas. However, the existing mine monitoring systems all have problems such as poor versatility and low intelligence, which nei...

AI Technical Summary

Problems solved by technology

[0004] 1. The existing mine monitoring and monitoring systems are all developed for a certain monitoring object. They are single-purpose monitoring systems for environmental safety, belt start and stop, lifting transportation, and equipment start and stop. As a result, equipment and accessories are not compatible with each other. cannot share

[0005] 2. The existing mine monitoring and monitoring systems are all developed for a certain monitoring purpose, and it is difficult for users to achieve multi-faceted monitoring purposes through simple operations

[0006] 3. The existing mine monitoring and monitoring systems all require high cost and power consumption, and the scalability is not strong, so it is difficult to increase the monitoring area conveniently with the expansion of the mine scale

Images