CN111271126A - Mine gas monitoring alarm system - Google Patents
Mine gas monitoring alarm system Download PDFInfo
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- CN111271126A CN111271126A CN201811470644.1A CN201811470644A CN111271126A CN 111271126 A CN111271126 A CN 111271126A CN 201811470644 A CN201811470644 A CN 201811470644A CN 111271126 A CN111271126 A CN 111271126A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 79
- 238000012806 monitoring device Methods 0.000 claims abstract description 59
- 230000002159 abnormal effect Effects 0.000 claims abstract description 41
- 238000012546 transfer Methods 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000005856 abnormality Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 11
- 230000009977 dual effect Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 100
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000004880 explosion Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
Abstract
The invention is suitable for the technical field of Internet of things, and provides a mine gas monitoring and alarming system which comprises a gas monitoring device, a double-frequency signal transfer device and a monitoring center, wherein the gas monitoring device is used for monitoring and alarming gas in a mine; the gas monitoring device is used for detecting the gas concentration in the mine and feeding back monitoring abnormal information to the double-frequency signal transfer device; the double-frequency signal transfer device is in network communication with the gas monitoring device, is used for receiving monitoring abnormal information and transfers the monitoring abnormal information to the monitoring center; and the monitoring center is in network communication with the double-frequency signal transfer device and is used for determining the specific position of the gas concentration abnormity in the mine according to the monitoring abnormity information and outputting abnormity alarm information. Each device of the system of the invention transmits data in a wireless mode, and wiring does not need to be installed in a mine, so that the installation is convenient and the cost of wiring is saved; and through laying double-frequency signal transfer device, can carry out double-frequency conversion to data, not only reduced the transmission consumption of data, still increased the transmission distance of data, the practicality is stronger.
Description
Technical Field
The invention belongs to the technical field of Internet of things, and particularly relates to a mine gas monitoring and alarming system.
Background
Mine gas is a generic name of poisonous and harmful gas mainly containing methane in the well, and sometimes refers to methane alone. The gas is lighter than air, easy to diffuse, strong in permeability and easy to discharge from adjacent layers through rock stratums and goafs. The gas is non-toxic, but can not be breathed by people, and when the concentration of the gas in the air in the mine exceeds 50 percent, people can suffocate and die due to oxygen deficiency. The gas can be burnt or exploded, the gas explosion is one of the main disasters of coal mines, and many cases of casualties and serious production damage caused by the gas explosion exist at home and abroad. Therefore, effective precautionary measures must be taken to avoid mine gas explosion accidents and ensure safe production.
At present, a mine (such as a coal mine) generally carries a portable gas detector when a mine worker enters the mine, and the portable gas detector is used for detecting the gas concentration inside the mine so as to give an alarm when the gas concentration is abnormal and remind the mine worker to evacuate or take a countermeasure. There are many uncertain factors in manually carrying the detection device, such as forgetting to carry it, etc. If the concentration of the gas is found to be over-standard when the miners go deep into the mine, the miners need a long time to leave the mine, so that the time for the miners to stay in the mine is relatively long, and the dangers of suffocation, poisoning and the like are greatly increased.
In addition, in order to avoid the uncertainty factor of the manual carrying of the detector, the gas detector can be directly arranged in the mine, the manual carrying is not needed, but due to the particularity of the geological structure in the mine, the difficulty and the cost of arranging the gas detector in the mine through the stay wire are greatly increased, and the maintenance cost is relatively high. And the mode has large power consumption and short transmission distance.
Therefore, the problems of untimely detection feedback, high installation and maintenance cost, large power consumption and short transmission distance still exist in the conventional mine gas detection mode.
Disclosure of Invention
The embodiment of the invention provides a mine gas monitoring and alarming system, and aims to solve the problems of untimely detection feedback, high installation and maintenance cost, large power consumption and short transmission distance in the conventional mine gas detection mode.
The embodiment of the invention is realized in such a way that a mine gas monitoring and alarming system comprises: the system comprises a gas monitoring device, a double-frequency signal transfer device and a monitoring center;
the gas monitoring device is used for detecting the gas concentration in the mine and feeding back monitoring abnormal information to the double-frequency signal transfer device;
the double-frequency signal transfer device is in network communication with the gas monitoring device, is used for receiving the monitoring abnormal information and transfers the monitoring abnormal information to the monitoring center;
and the monitoring center is in network communication with the double-frequency signal transfer device and is used for determining the specific position of the gas concentration abnormity in the mine according to the abnormal monitoring information and outputting abnormal alarm information.
According to the mine gas monitoring alarm system provided by the embodiment of the invention, data are transmitted among the gas monitoring device, the double-frequency signal transfer device and the monitoring center in a wireless mode, wiring channels do not need to be dug in a mine, the cost of wiring and installation is saved, the installation is very convenient, and the maintenance cost is relatively low; and through laying double-frequency signal transfer device between gas monitoring devices and surveillance center, can carry out double-frequency conversion to the data that gas monitoring devices detected, not only reduced the transmission consumption of data, still increased the transmission distance of data, and data transmission efficiency is high, and the practicality is stronger to the problem that exists among the prior art has been solved.
Drawings
Fig. 1 is a schematic structural diagram of a mine gas monitoring alarm system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a mine gas monitoring alarm system according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a mine gas monitoring alarm system provided by a third embodiment of the invention;
fig. 4 is a schematic structural diagram of a mine gas monitoring alarm system provided by the fourth embodiment of the invention;
fig. 5 is a schematic structural diagram of a mine gas monitoring alarm system according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
Fig. 1 is a schematic structural diagram of a mine gas monitoring alarm system according to a first embodiment of the present invention, and for convenience of description, only the relevant parts of the mine gas monitoring alarm system are shown in the drawing, which is detailed as follows:
as shown in fig. 1, the mine gas monitoring alarm system disclosed in the embodiment of the present invention includes: the system comprises a gas monitoring device 100, a double-frequency signal transfer device 200 and a monitoring center 300;
the gas monitoring device 100 is used for detecting the gas concentration inside the mine and feeding back monitoring abnormal information to the dual-frequency signal transfer device 200.
In the embodiment of the invention, the gas monitoring devices are arranged in the mine, such as embedded in the inner wall of the mine, and the specific installation positions and installation quantity are determined, so that mine safety personnel can perform arrangement and installation according to the actual conditions of the geological conditions of the mine, the depth of the mine and the like.
Illustratively, the gas monitoring device 100 may be an optical methane detector, an electrical methane detection alarm, or the like. It includes a gas sensor, for example, an MC112 catalytic methane sensor, for detecting the gas concentration inside the mine.
In the embodiment of the present invention, the monitoring abnormality information includes that the gas concentration exceeds the standard within the detection range of the gas monitoring apparatus 100.
The dual-frequency signal transfer device 200 is in network communication with the gas monitoring device, and is used for receiving monitoring abnormal information and transferring the monitoring abnormal information to the monitoring center 300.
And the monitoring center 300 is in network communication with the dual-frequency signal transfer device 200, and is used for determining the specific position of the gas concentration abnormality in the mine according to the monitoring abnormality information and outputting abnormality alarm information.
In the embodiment of the present invention, the abnormal alarm information may be one of voice, image, video or text information or any combination thereof. For example, when the monitoring center 300 receives the monitoring abnormality information transferred from the dual-frequency signal transfer device 200, the monitoring center 300 can trace back to its information source according to the monitoring abnormality information, determine the specific location of the gas concentration abnormality in the mine, and output the voice alarm information of "please notice, the gas concentration at XX monitoring point exceeds standard".
According to the mine gas monitoring alarm system provided by the embodiment of the invention, data are transmitted among the gas monitoring device, the double-frequency signal transfer device and the monitoring center in a wireless mode, wiring channels do not need to be dug in a mine, the cost of wiring and installation is saved, the installation is very convenient, and the maintenance cost is relatively low; and through laying double-frequency signal transfer device between gas monitoring devices and surveillance center, can carry out double-frequency conversion to the data that gas monitoring devices detected, not only reduced the transmission consumption of data, still increased the transmission distance of data, and data transmission efficiency is high, and the practicality is stronger to the problem that exists among the prior art has been solved.
As an embodiment of the present invention, the gas monitoring device 100 is specifically configured to: and when the gas concentration in the mine is detected to exceed the preset concentration range value, feeding back monitoring abnormal information to the double-frequency signal transfer device.
In practical application, a mine safety staff can lay the gas monitoring devices 100 with proper distance and quantity according to factors such as the depth, the length and the geological structure of a mine, so that each corner of the mine can be monitored by the gas monitoring devices 100. Each gas monitoring device 100 can monitor the gas concentration within its detection range in real time.
When one (some) of the gas monitoring devices 100 detects that the gas concentration in the mine range managed by the gas monitoring device(s) exceeds the preset concentration range value, abnormal monitoring information is fed back to the dual-frequency signal transfer device 200, so that the dual-frequency signal transfer device 200 can transmit the abnormal detection information to the monitoring center 300 in time, monitoring personnel can make safety countermeasures in time, and the life safety of production personnel is ensured.
Fig. 2 is a schematic structural diagram of a mine gas monitoring alarm system according to a second embodiment of the present invention, in which for convenience of description, only the relevant parts related to the second embodiment are shown, and the details are as follows:
as shown in fig. 2, the present embodiment is substantially the same as the first embodiment, and the difference is only that: the dual-frequency signal relay apparatus 200 includes a high-frequency signal relay 201 and a low-frequency signal relay 202;
the high-frequency signal repeater 201 is in network communication with the gas detection device 100, is used for receiving monitoring abnormal information, and transmits the monitoring abnormal information to the low-frequency signal repeater 202;
and the low-frequency signal repeater 202 is in network communication with the high-frequency signal repeater 201 and the monitoring center 300 respectively, and is used for transmitting the monitoring abnormality information to the monitoring center 300.
In the embodiment of the invention, the high-frequency signal repeater 201 is generally arranged within a distance range of 30-200 meters from the gas monitoring device 100, can be powered by a battery, and has low power consumption. The low frequency signal repeater 202 may be set within a distance range of about 1000 m from the gas monitoring device 100, and may be powered by commercial power. By arranging the high-frequency signal repeater 201 and the low-frequency signal repeater 202, the data transmission efficiency of the gas monitoring device 100 can be guaranteed, the power consumption of data transmission is reduced, the transmission distance of data is increased, early warning information can be transmitted to the monitoring center 300 efficiently and with low consumption, the cost of whole monitoring is reduced, and the practicability is high.
In the embodiment of the present invention, the high frequency signal repeater 201 converts the received high frequency signal into a low frequency signal and transmits the low frequency signal to the low frequency signal repeater 202, so as to reduce power consumption of data transmission.
As shown in fig. 3, as another embodiment of the present invention, the high frequency signal repeater 201 may perform network communication with a plurality of gas monitoring devices 100 at the same time, and is configured to receive monitoring abnormality information fed back by the plurality of gas monitoring devices 100 and transmit the monitoring abnormality information to the low frequency signal repeater 202.
In the embodiment of the present invention, the high-frequency signal repeater 201 can simultaneously access and process monitoring abnormal information uploaded by a plurality of gas monitoring devices 100, so as to improve the efficiency of data synchronization processing, further reduce the power consumption of data transmission, and save the cost of monitoring and early warning.
Further, the high frequency signal repeater 201 can simultaneously perform network communication with 32 gas monitoring devices.
As an embodiment of the present invention, the high frequency signal repeater 201 and the low frequency signal repeater 202 are both provided with a low frequency radio frequency module, wherein the high frequency signal repeater 201 is also provided with a high frequency radio frequency module.
Further, the high-frequency radio frequency module is a 2.4GHz RF radio frequency module; the low-frequency radio frequency module is one of a 433MHz RF radio frequency module, a 470MHz RF radio frequency module or a 900MHz RF radio frequency module.
In the embodiment of the present invention, the gas monitoring device 100 is provided with a high frequency rf module, and the monitoring center 300 is provided with a low frequency rf module, so as to ensure that data can be transmitted mutually in a corresponding frequency band, and abnormal situations such as packet loss and code disorder do not occur, thereby ensuring the reliability of data transmission.
As a disclosed embodiment of the present invention, the monitoring abnormality information includes a time window;
the dual-frequency signal transfer device 200 is further configured to: in the transmission process, whether the air channel is occupied or not is detected, and if the air channel is not occupied, the received monitoring abnormal information is transferred to the monitoring center 300 according to the time sequence of the time window.
In the embodiment of the present invention, each gas monitoring device 100 generates a time window during data transmission, for example, the No. 1 gas monitoring device sends monitoring abnormal information a at 9 o 'clock 1 min 6 sec in the morning, the No. 2 gas monitoring device sends monitoring abnormal information B at 9 o' clock 1 min 30 sec in the morning, the dual-frequency signal transfer device 200 detects whether the air channel is occupied when receiving the monitoring abnormal information a and the monitoring abnormal information B sent by the No. 1 and No. 2 gas monitoring devices, and if not, the monitoring abnormal information a and the monitoring abnormal information B are sent to the monitoring center 300 in sequence, so as to ensure that the data cannot collide with a packet during the transmission process, and at the same time, the transmission efficiency of the data can be ensured.
As shown in fig. 4 and fig. 5, as another embodiment of the present invention, the dual-frequency signal relay apparatus 200 includes a high-frequency signal relay 201 and a plurality of low-frequency signal relays 202 distributed in an extending manner. The low-frequency signal repeaters 202 distributed in an extending manner can extend the data transmission distance, and can be suitable for the data transmission requirements of mines with different depth lengths.
In the embodiment of the present invention, the low frequency signal repeaters 202 extend to 8 layers, specifically, the monitoring center 300 is the 0 th layer, the high frequency signal repeater 201 is the 1 st layer, and the plurality of low frequency signal repeaters 202 extend and distribute to the 2 nd layer and the 3 rd layer … … the 8 th layer.
As an embodiment of the present invention, the monitoring abnormality information includes identification information of the gas monitoring device;
the monitoring center 300 is specifically configured to: and determining the specific position of the gas concentration abnormity in the mine according to the identification information of the gas monitoring device 100, and outputting abnormity alarm information.
In the embodiment of the present invention, the identification information of the gas monitoring device 100 may be a serial number preset for each gas monitoring device 100, for example, the serial number of the gas monitoring device arranged at 100 meters from the mine entrance is 01010010503, the serial number of the gas monitoring device arranged at 500 meters from the mine entrance is 02500032461, and the like. In presetting, each number (string) in the serial number can be assigned a definite meaning, for example, the serial number is 01010010503, the first "01" represents the 1 st gas monitoring device arrangement point in the mine, the next "100" can represent 100 meters away from the mine entrance, and the next "10503" can be the model of the gas monitoring device or other information, and those skilled in the art can set the number according to the actual situation, and is not limited herein.
For example, assuming that the monitoring abnormality information relayed by the monitoring center 300 in the dual-frequency signal relay device 200 includes the serial number 01010010503 of the gas monitoring device, according to the digital predefined content of the serial number, it may be determined that the specific location where the gas concentration abnormality occurs currently is "100 meters away from the mine entrance", and the alarm voice message may be broadcasted to please note that the gas concentration abnormality occurs 100 meters away from the mine entrance, and the gas concentration is XXX'.
In an embodiment of the present invention, the monitoring center 300 may be disposed in a safe room of a mine. The monitoring center 300 is further provided with an LCD display screen for displaying abnormal alarm text or image or video information.
In the embodiment of the invention, a loudspeaker can be further arranged in the gas monitoring device 100, and when the gas monitoring device detects that the gas concentration exceeds the standard, abnormal early warning information can be immediately broadcast to warn surrounding workers to leave the area with the gas concentration exceeding the standard in time, so that the personal safety is ensured. According to the mine gas monitoring alarm system provided by the embodiment of the invention, data are transmitted among the gas monitoring device, the double-frequency signal transfer device and the monitoring center in a wireless mode, wiring channels do not need to be dug in a mine, the cost of wiring and installation is saved, the installation is very convenient, and the maintenance cost is relatively low; and through laying double-frequency signal transfer device between gas monitoring devices and surveillance center, can carry out double-frequency conversion to the data that gas monitoring devices detected, not only reduced the transmission consumption of data, still increased the transmission distance of data, and data transmission efficiency is high, and the practicality is stronger to the problem that exists among the prior art has been solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A mine gas monitoring alarm system, comprising: the system comprises a gas monitoring device, a double-frequency signal transfer device and a monitoring center;
the gas monitoring device is used for detecting the gas concentration in the mine and feeding back monitoring abnormal information to the double-frequency signal transfer device;
the double-frequency signal transfer device is in network communication with the gas monitoring device, is used for receiving the monitoring abnormal information and transfers the monitoring abnormal information to the monitoring center;
and the monitoring center is in network communication with the double-frequency signal transfer device and is used for determining the specific position of the gas concentration abnormity in the mine according to the abnormal monitoring information and outputting abnormal alarm information.
2. The mine gas monitoring alarm system of claim 1, wherein the gas monitoring device is specifically configured to: and when the gas concentration in the mine is detected to exceed a preset concentration range value, feeding back monitoring abnormal information to the double-frequency signal transfer device.
3. The mine gas monitoring alarm system of claim 1, wherein the dual frequency signal relay device comprises a high frequency signal relay and a low frequency signal relay;
the high-frequency signal repeater is in network communication with the gas detection device, is used for receiving the monitoring abnormal information and transmits the monitoring abnormal information to the low-frequency signal repeater;
and the low-frequency signal repeater is in network communication with the high-frequency signal repeater and the monitoring center respectively and is used for transferring the monitoring abnormal information to the monitoring center.
4. The mine gas monitoring alarm system of claim 3, wherein the high frequency signal repeater is capable of simultaneously performing network communication with a plurality of gas monitoring devices, and is configured to receive monitoring abnormality information fed back from the plurality of gas monitoring devices, convert the high frequency signal into a low frequency signal, and transmit the low frequency signal to the low frequency signal repeater.
5. The mine gas monitoring alarm system of claim 3, wherein the high frequency signal repeater has a high frequency radio frequency module and a low frequency radio frequency module;
the low-frequency signal repeater is provided with a low-frequency radio frequency module.
6. The mine gas monitoring alarm system of claim 5, wherein the high frequency radio frequency module is a 2.4GHz RF radio frequency module;
the low-frequency radio frequency module is one of a 433MHz RF radio frequency module, a 470MHz RF radio frequency module or a 900MHz RF radio frequency module.
7. The mine gas monitoring alarm system of claim 4, wherein the high frequency signal repeater is in network communication with 32 gas monitoring devices simultaneously.
8. The mine gas monitoring alarm system of claim 1, wherein the monitoring anomaly information includes a time window;
the dual-frequency signal transfer device is further configured to: and detecting whether an air channel is occupied or not in the transmission process, and if not, transferring the received monitoring abnormal information to the monitoring center according to the time sequence of the time window.
9. The mine gas monitoring alarm system of claim 1, wherein the dual frequency signal relaying device includes a high frequency signal repeater and a plurality of low frequency signal repeaters distributed in an extended manner.
10. The mine gas monitoring alarm system of claim 1, wherein the monitoring anomaly information includes identification information of the gas monitoring device;
the monitoring center is specifically configured to: and determining the specific position of the abnormal gas concentration in the mine according to the identification information of the gas monitoring device, and outputting abnormal alarm information.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811470644.1A CN111271126A (en) | 2018-12-04 | 2018-12-04 | Mine gas monitoring alarm system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811470644.1A CN111271126A (en) | 2018-12-04 | 2018-12-04 | Mine gas monitoring alarm system |
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Application publication date: 20200612 |