New:The experimental WSN network for underground monitoring H2 abundance in the mine atmosphere Karnasurt mine Lovozero layered alkaline intrusion
Source: Bilingual Publishing By: Tom Updata: 09-07-2021
Hydrogen is one of the most interesting trace gases found in the alkaline rocks. The emission of free hydrogen from ultrabasic rocks, associated with serpentine forming processes, is the most well-known process. However, more recently attention was paid to high hydrogen content in alkaline rocks . High concentration of hydrocarbon and hydrogen-hydrocarbon gases in alkaline complexes occluded as fluid inclusions in minerals. These fact presences in the alkaline rock of hydrocarbon gases has a number of practical implications and it is therefore important to understand their source and distribution.If you had to forecast an increase of gas emission in the mines, it is necessary to determine their spatial and time variations and a condition of their appearance. According to their mobility, gas components are very sensitive to conditions of geological environment and can be effective indicators of the dangerous and adverse geodynamic factors.Unlike existing methods, the developed equipment allows to carry out measurements directly in the zone of blasting operations with high discreteness in time.The basic task of work is organization of the ecological monitoring in the district of exploitation of large deposits of apatite and rare earth elements ore deposit on the base of modern WSN technologies, consisting of sensors of gas H2, CH4, CO2, complex autonomous controls of temperature, pressure, humidity and network of telecommunications (used ZigBee protocol) (Fig 1).
Wireless sensor network monitoring (WSN) is last innovation for the industry. WSN are spatially distributed autonomous sensors to monitor physical or environmental conditions, such as gas, temperature, pressure, etc. and to cooperatively pass their data through the network to a main location . The WSN is built of "nodes" - from a few to several hundreds or even thousands, where each node is connected to one (or sometimes several) sensors. Each network node has a radio transceiver with an internal antenna or connection to an external antenna, a microcontroller, an electronic circuit for interfacing with the sensors and an energy source, usually a battery or an embedded form of energy harvesting. The project includes the development of informational and analytical system, which includes a network of gas emission sensors and internet webpage based on modern WEB-GIS technologies. The advantages of this technology is autonomous work (to several months and more), high-frequency programmable measurement of gas sensor, low cost (on one node of network), and possibility to connect to one node of supervision a several types of sensors.
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