Down-hole wireless safety monitoring system based on 2.4 GHz and 433 MHz frequency band mixed grouping

A hybrid networking and wireless security technology, applied in signal transmission systems, instruments, data exchange through path configuration, etc., can solve problems such as less functions, inconvenient equipment movement, and difficult maintenance
CN101221689AInactive Publication Date: 2008-07-16SHANGHAI UNIV +1
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHANGHAI UNIV
Publication Date
2008-07-16
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a downhole wireless safety monitoring system based on mixed networking of 2.4 GHz and 433 MHz frequency ranges. The system consists of mobile nodes, fixed nodes, a gateway node, a transmission node and a ground main frame, wherein the mobile nodes are mainly carried by miners and are provided with sensors for monitoring the body temperature and pulse of each miner; the fixed nodes arranged in mine roadways are also provided with sensors for monitoring ambient gas density at real time; the ground main frame receives data collected in the downhole, displays personnel positioning information and physiological parameter information at real time, displays a gas density curve at real time, and is capable of setting up an overrun alarm and releasing act of rescue information to the downhole.
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Description

technical field

[0001] The invention relates to the field of coal mine safety and sensor networks, and is an underground wireless safety monitoring system based on mixed networking of 2.4GHz and 433MHz frequency bands. Background technique

[0002] For a long time, the coal mining industry has been a high-risk industry with a high rate of industrial accidents. Gas explosions and mine collapses have occurred from time to time, posing a serious threat to the lives of underground workers. How to issue an early warning before the accident and inform the underground staff to implement emergency evacuation; how to carry out timely and effective rescue after the mine disaster occurs are the focus of the underground safety monitoring system research.

[0003] The existing underground safety monitoring system is generally composed of sensors, substations, transmission systems and monitoring centers, and uses wired transmission. The application of these systems has played a role in u...

Claims

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