Vibration energy capturing wireless sensor network node for monitoring gas under coal mine

Abstract

The invention discloses a vibration energy capturing wireless sensor network node for monitoring gas under a coal mine, and the node comprises a piezoelectric power generation device which is used forcollecting underground vibration energy and converting the vibration energy into electric energy, an intrinsic-safety type energy collection management module, a gas sensor, a signal conditioning andcontrol module and a wireless receiving and transmitting module. The output end of the piezoelectric power generation device is connected with the intrinsic-safety type energy collection management module, and the output end of the intrinsic-safety type energy collection management module is connected with the gas sensor, the signal conditioning and control module and the wireless receiving and transmitting module. The output end of the gas sensor is connected with the signal conditioning and control module, and the signal conditioning and control module is connected with the wireless receiving and transmitting module. The node is high in energy conversion rate, is stable in supply voltage, is long in service life, reduces the maintenance cost, can achieve the all-weather operation, and guarantees the safety of the coal mine.

Description

technical field [0001] The present invention relates to the technical field of wireless sensor network nodes, in particular to a wireless sensor network node for gas monitoring in mines that captures vibration energy. Background technique [0002] As the foundation of my country's economic development, coal resources are an important guarantee for maintaining the rapid development of the national economy. However, coal mining has always been a dangerous industry, and the severe situation of coal safety production has been restricting the development of the coal industry and seriously threatening the health and life safety of coal workers. In recent years, my country's coal mine safety accidents have occurred frequently, causing heavy casualties and economic losses to the country. Among these safety accidents, gas explosions account for the majority. In the traditional gas monitoring system, the monitoring and data transmission are mostly carried out in a wired way, so there...

AI Technical Summary

Problems solved by technology

In the traditional gas monitoring system, most of the monitoring and data transmission are carried out in a wired way, so there will be difficulties in wiring under the mine

On the other hand, the traditional gas monitoring system uses wired cables for power supply. This power supply method has disadvantages such as diffic

Images