Underground environment monitoring prewarning system and intelligent sensor thereof

Abstract

The invention provides an underground environment monitoring prewarning system which comprises monitoring units, a communication unit and warning units arranged on various positions underground. The monitoring units are arranged on various positions underground and are used for detecting underground environment, judging whether the underground environment is safe, and sending warning signals when the result is negative. The communication unit is used for transmitting the warning signals. The warning units are arranged on the various positions underground and are used for receiving the warning signals and warning by sending out signals capable of being sensed by a human body according to the warning signals. If one monitoring unit sends out a warning signal, the warning signal is transmitted to the various positions underground through the communication unit and triggers the long-distance warning units for warning. Warning throughout a well is achieved, and promptness, comprehensiveness and reliability of underground refuging and rescuing are improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an underground environment monitoring and early warning system and an intelligent sensor applied to the underground environment monitoring and early warning system. Background technique [0002] Coal is the main energy pillar of our country, but due to the influence of coal resources and environment, the safety of underground mines has become a social issue of widespread concern to the public. [0003] There are many kinds of safety accidents in coal mines. CO poisoning and gas explosion are very common ones, and they are usually the accidents with the largest number of fatalities. Gas explosion is a chain reaction, which is a violent oxidation reaction of a certain concentration of methane and oxygen in the air at a certain temperature, and is a serious disaster in coal mine production. [0004] For example: gas will explode only at a certain concentration and at a certa...

AI Technical Summary

Problems solved by technology

[0006] In the downhole communication system of the prior art, when an accident occurs underground, the monitoring and monitoring system is usually used to realize the alarm, and this kind of alarm is limited to the local alarm, that is, the alarm signal at the accident site cannot be known by the whole well; Realize remote alarm, so that other personnel who are temporarily in a safe position in the mine cannot know the occurrence of the accident and cannot escape in time

In addition, the existing downhole monitoring and monitoring system needs to transmit the information of the downhole detection sensor to the rescue center above the well, and send the alarm information to the downhole through the uphole, which will obviously cause the alarm lag, and even the uphole did not process the alarm information in time, resulting in a serious alarm lag

[0007] Since the information transmission path of the underground communication system and the underground emergency broadcasting system is too long and the transmission path is single, relying on communication cables to transmit information, after an accident such as an explosion in the mine, the transmission line is likely to be interrupted, so that the underground environmental monitoring information is uploaded and transmitted. The release of alarm information cannot be realized normally, and even leads to the failure of the mine-wide communication system. Therefore, accident judgment, accident alarm and underground rescue will be hindered, and secondary accidents may even be caused by blind search and rescue due to lack of understanding of the underground environment.

The above problems have seriously reduced the safety level of the entire mine

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