CN112967413A - Coal mine gas dynamic patrol system and method - Google Patents
Coal mine gas dynamic patrol system and method Download PDFInfo
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- CN112967413A CN112967413A CN202110137786.1A CN202110137786A CN112967413A CN 112967413 A CN112967413 A CN 112967413A CN 202110137786 A CN202110137786 A CN 202110137786A CN 112967413 A CN112967413 A CN 112967413A
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- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
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Abstract
The invention particularly relates to a coal mine gas dynamic patrol system and a coal mine gas dynamic patrol method. The dynamic patrol system comprises: the optical watt detector is used for acquiring optical data of methane concentration in the mine; the fixed-point measurement terminal is used for obtaining fixed-point data of the methane concentration in the mine; the inspection measurement terminal is used for acquiring inspection data of the methane concentration in the mine; the data processing module is used for calculating the concentration change trends of the optical watt-level detector, the fixed-point measuring terminal and the polling measuring terminal; then respectively judging the data authenticity of the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data according to the concentration variation trends of the three; and finally, calculating according to the real methane concentration data to obtain the methane concentration value in the mine. The invention also correspondingly discloses a dynamic patrol method. The dynamic patrol system and method of the invention can obtain data comprehensively and provide data reference, thereby ensuring the authenticity of the data obtained by the patrol system.
Description
Technical Field
The invention relates to the technical field of coal mine patrol systems, in particular to a coal mine gas dynamic patrol system and a coal mine gas dynamic patrol method.
Background
In coal mine production, explosion accidents occur frequently, wherein the influence caused by gas explosion accidents is extremely serious, and the monitoring of the gas concentration by each coal mine is extremely important. Although each large coal mine is provided with a safety production monitoring system and advanced gas detection equipment, the occurrence of gas explosion accidents can not be effectively restrained. Through the analysis of a plurality of gas explosion accidents, the gas accidents are possibly caused by the fact that the management personnel and the security inspection personnel do not work in place. Therefore, management of mine gas monitoring and safety inspection is enhanced, the work responsibility of special operators such as mine tile inspectors, safety inspectors and the like is enhanced, missing inspection of gas inspection and safety inspection in an empty shift is avoided, and mine gas explosion accidents can be effectively controlled.
The main component of the gas is alkane, wherein methane accounts for the most part, therefore, the detection of the gas is mainly aimed at the detection of the methane at present. The current methane portable instrument can be convenient for miners to carry, and can be used for measuring the methane concentration of the position where the miners are located, so that safety accidents can be reduced theoretically.
However, the existing portable methane instrument only has a measurement function, and ground personnel cannot receive the real-time methane concentration value of the portable methane instrument carried by each miner, and ground management personnel cannot effectively supervise and track the tile inspector, the security inspector and the like in real time, confirm whether the tile inspector, the security inspector and the like are in place according to the specified line, time, place and times, and timely find and handle dangerous situations. Meanwhile, the underground handwriting board has the problems of writing errors, omission, unclear vision and the like due to the fact that dust and humidity are large, and the loss of the functions is extremely unfavorable for monitoring and controlling safety production. Therefore, Chinese patent with publication number CN110259516A discloses a dynamic patrol management system for coal mine gas, which comprises a data server, a central station monitoring host, a data transmission interface, an electronic billboard and a methane detection alarm instrument; the data server is used for realizing data storage and distribution; the central station monitoring host is used for realizing the collection of all data of the system, data analysis, human-computer interface interaction and early warning linkage; the data transmission interface is used for finishing data interaction between the underground equipment and the central station monitoring host; and the methane detection alarm instrument is used for measuring the methane concentration of the air environment and realizing the position positioning of personnel.
Above-mentioned current scheme can upload the methane concentration data of the instrument that the person of patrolling carries and the position location of the person of patrolling in real time to can in time discover and handle danger, and can confirm whether the person of patrolling is in place according to regulation circuit, time, place and number of times inspection. However, the authenticity requirement for methane concentration data is relatively high when the coal mine is patrolled, because the data directly reflects the safety of the mine. However, in the existing scheme, only the data of the patrol inspection measurement terminal carried by the patrol inspection personnel is taken as the standard, so that the following problems are easy to occur: on one hand, the night patrol personnel patrol and measure according to the set night patrol route, so that other positions except the night patrol route cannot be measured, and the methane concentration data acquired by the patrol measuring terminal is possibly incomplete; on the other hand, when a fault occurs in the inspection measurement terminal (wrong methane concentration data is obtained by measurement) or an operation error occurs in an inspection worker, the inspection measurement terminal may upload wrong methane concentration data. That is to say, the data that patrols and examines measurement terminal upload are not necessarily true methane concentration data to because there is not other data available reference, make the authenticity of data that the system of patrolling and keeping more obtained difficult to judge, lead to the management and control effect of the system of patrolling and keeping more to coal mine gas. Therefore, the applicant thinks of designing a coal mine gas dynamic patrol system and method with comprehensive data acquisition and capable of providing data reference so as to ensure the authenticity of the data acquired by the patrol system.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a coal mine gas dynamic patrol system and method which are comprehensive in data acquisition and can provide data reference so as to ensure the authenticity of the data acquired by the patrol system and further improve the control effect of the patrol system on the coal mine gas.
In order to solve the technical problems, the invention adopts the following technical scheme:
a coal mine gas dynamic patrol system, comprising:
the optical watt detector is used for acquiring optical data of methane concentration in the mine;
the fixed-point measurement terminal is arranged at each designated position in the mine and used for obtaining fixed-point data of methane concentration in the mine;
the inspection measuring terminal is carried by an inspector and is used for acquiring inspection data of the methane concentration in the mine;
the data processing module is used for respectively calculating the concentration change trends of the optical watt-hour detector, the fixed-point measuring terminal and the patrol measuring terminal according to the methane concentration optical data, the methane concentration fixed-point data and the methane concentration patrol data; then respectively judging the data authenticity of the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data according to the concentration variation trends of the three; and finally, calculating according to the real methane concentration data to obtain the methane concentration value in the mine.
Preferably, the data processing module calculates and generates concentration change curves reflecting concentration change trends of the optical watt-level detector, the fixed-point measuring terminal and the patrol measuring terminal according to the optical methane concentration data, the fixed-point methane concentration data and the patrol data; then respectively calculating the concentration change rates of the three on a target point according to the concentration change curves of the three, and respectively judging the data authenticity of the methane concentration optical data, the methane concentration fixed point data and the methane concentration routing inspection data by comparing the concentration change rates of the three on the target point; and finally, calculating according to the real methane concentration data to obtain a methane concentration value.
Preferably, after the data processing module calculates the concentration change rates of the optical watt-level detector, the fixed-point measuring terminal and the patrol measuring terminal on the target point, the concentration change rates are corrected according to the set change rate error correction value, and the data authenticity of the optical methane concentration data, the fixed-point methane concentration data and the patrol methane concentration data is judged by comparing the concentration change rates of the optical watt-level detector, the fixed-point methane concentration measuring terminal and the patrol measuring terminal.
Preferably, in step S3, the concentration change rate is corrected, and the data authenticity of the methane concentration optical data, the methane concentration setpoint data, and the methane concentration patrol data is judged by:
firstly, according to formula Ai(1-a％)≤Ai x≤Ai(1+ a%) respectively calculating the concentration change rate of the optical watt-hour meter, the fixed-point measuring terminal and the routing inspection measuring terminal after correction; in the formula, AiDenotes the rate of change of concentration, Ai xThe corrected concentration change rate is shown, and a% shows a change rate error correction value;
then, A is judged1 x∩A2 x∩A3 xWhether the data are empty sets or not is judged, and if yes, the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data are judged to be real data; otherwise, judging that the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data are unreal numbersAccordingly; in the formula, A1 xShows the concentration change rate after correction of the optical watt-level meter, A2 xRepresents the corrected concentration change rate of the fixed-point measurement terminal, A3 xAnd expressing the concentration change rate corrected by the inspection measurement terminal.
Preferably, after the data processing module judges that the real methane concentration data is obtained, the arithmetic mean value of the real methane concentration data is calculated to be used as the methane concentration value in the mine.
Preferably, the inspection measurement terminal includes:
the methane measuring module is used for acquiring methane concentration inspection data in the mine;
the positioning module is used for acquiring the position positioning information of the night patrol personnel;
and the communication module is used for uploading the methane concentration inspection data in the mine and the position positioning information of the inspection personnel to the data processing module.
Preferably, the positioning module comprises one or more of a UWB positioning unit, a RFID radio frequency unit, or a NFC unit; the UWB positioning unit is used for acquiring physical positioning information of the night patrol personnel; the RFID radio frequency unit is used for carrying out data communication with RFID tags arranged in a mine so as to obtain the regional positioning information of the patrol personnel; and the NFC unit is used for carrying out data communication with a passive tag arranged in a mine so as to acquire fixed-point positioning information of the night patrol personnel.
Preferably, the data processing module is used for calculating and generating the patrol track information of the patrol personnel according to the position positioning information of the patrol personnel.
Preferably, the data processing module is used for updating the set routing inspection route according to the routing inspection track information of each routing inspection person.
The invention also discloses a coal mine gas dynamic patrol method which is implemented based on the patrol system and specifically comprises the following steps:
s1: respectively acquiring methane concentration optical data, methane concentration fixed point data and methane concentration polling data of the optical watt-hour meter, the fixed point measurement terminal and the polling measurement terminal;
s2: respectively calculating and generating concentration change curves reflecting concentration change trends of the optical watt-hour detector, the fixed-point measuring terminal and the patrol measuring terminal according to the methane concentration optical data, the methane concentration fixed-point data and the methane concentration patrol data; (ii) a
S3: respectively calculating the concentration change rates of the optical watt-hour meter, the fixed point measuring terminal and the patrol measuring terminal on a target point according to the concentration change curves of the optical watt-hour meter, the fixed point measuring terminal and the patrol measuring terminal, and respectively judging the data authenticity of the optical methane concentration data, the fixed point methane concentration data and the patrol methane concentration data by comparing the concentration change rates on the target point;
s4: and calculating to obtain the methane concentration value in the mine according to the real methane concentration data.
Compared with the prior art, the coal mine gas dynamic patrol system and method have the following beneficial effects:
1. in the invention, the concentration variation trends of the optical tile detector, the fixed point measurement terminal and the patrol inspection measurement terminal are calculated, and the data authenticity of the optical methane concentration data, the fixed point methane concentration data and the patrol inspection data is respectively judged according to the concentration variation trends of the optical tile detector, the fixed point methane concentration data and the patrol inspection measurement terminal, so that 'gas data three-comparison' of the optical tile detector, the fixed point methane concentration data and the patrol inspection measurement terminal is realized, the authenticity of each methane concentration data can be judged, and the control effect of the patrol system on the coal mine gas can be improved.
2. In the invention, the data acquired in the dynamic night patrol system is used instead of staying at the data acquisition stage of the existing system, so that the judgment of the authenticity of the data is realized, and the management of night patrol personnel is facilitated.
3. In the invention, the optical tile detector, the fixed point measurement terminal and the patrol inspection measurement terminal are used for respectively acquiring the methane concentration patrol inspection data, the methane concentration fixed point data and the methane concentration patrol inspection data, namely the methane concentration data in a mine are acquired more comprehensively, and the methane concentration patrol inspection data and the methane concentration fixed point data of the optical tile detector and the fixed point measurement terminal can be used as data references of the methane concentration patrol inspection data acquired by the patrol inspection measurement terminal, so that the authenticity of the methane concentration data acquired by the patrol inspection system can be ensured.
Drawings
For purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings, in which:
FIG. 1 is a logic block diagram of a coal mine gas dynamic patrol system according to an embodiment;
fig. 2 is a flowchart illustrating the operation of the coal mine gas dynamic patrol system according to an embodiment.
Detailed Description
The following is further detailed by the specific embodiments:
the first embodiment is as follows:
the embodiment discloses a coal mine gas dynamic patrol system.
As shown in fig. 1 and 2, a dynamic patrol system for coal mine gas comprises:
the optical watt detector is used for acquiring optical data of methane concentration in the mine;
the fixed-point measurement terminal is arranged at each designated position in the mine and used for obtaining fixed-point data of methane concentration in the mine;
the inspection measuring terminal is carried by an inspector and is used for acquiring inspection data of the methane concentration in the mine;
the data processing module is used for respectively calculating the concentration change trends of the optical watt-hour detector, the fixed-point measuring terminal and the patrol measuring terminal according to the methane concentration optical data, the methane concentration fixed-point data and the methane concentration patrol data; then respectively judging the data authenticity of the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data according to the concentration variation trends of the three; and finally, calculating according to the real methane concentration data to obtain the methane concentration value in the mine.
The coal mine gas dynamic patrol system in the embodiment mainly comprises two parts, namely software and hardware; the hardware part mainly comprises a host, a server, a data transmission interface, a switch, a wireless base station, a handheld terminal, a positioning tag and the like, is the basis for realizing the system function, and mainly has the function of providing a system data transmission path and a system data source. The software part mainly comprises upper computer software and handheld terminal software, and the main functions are system function realization, data acquisition, data analysis, data statistics, data storage and data display.
In the invention, the concentration change trends of the optical tile detector (which is a necessary device for the existing coal mine gas patrol and is carried by patrol personnel), the fixed point measurement terminal and the patrol inspection measurement terminal are calculated, and the data authenticity of the methane concentration optical data, the methane concentration fixed point data and the methane concentration patrol inspection data is respectively judged according to the concentration change trends of the optical tile detector, the fixed point measurement terminal and the patrol inspection measurement terminal, so that the 'gas data triple comparison' of the optical tile detector, the fixed point measurement terminal and the patrol inspection measurement terminal is realized, the authenticity of each methane concentration data can be judged, and the control effect of the patrol system on the coal mine gas can be improved. Secondly, the invention does not stay in the data acquisition stage of the existing system any more, but uses the data acquired in the dynamic night patrol system, thereby not only realizing the judgment of the authenticity of the data, but also being beneficial to the auxiliary management of night patrol personnel. Furthermore, the optical watt detector, the fixed-point measuring terminal and the patrol measuring terminal are used for respectively acquiring the methane concentration patrol data, the methane concentration fixed-point data and the methane concentration patrol data, namely the methane concentration data in a mine are acquired more comprehensively, and the methane concentration patrol data and the methane concentration fixed-point data of the optical watt detector and the fixed-point measuring terminal can be used as data references of the methane concentration patrol data acquired by the patrol measuring terminal, so that the authenticity of the methane concentration data acquired by the patrol system can be ensured.
In the specific implementation process, the data processing module firstly calculates and generates concentration change curves reflecting concentration change trends of the optical watt-level detector, the fixed-point measuring terminal and the patrol measuring terminal according to the methane concentration optical data, the methane concentration fixed-point data and the methane concentration patrol data; then respectively calculating the concentration change rates of the three on a target point according to the concentration change curves of the three, and respectively judging the data authenticity of the methane concentration optical data, the methane concentration fixed point data and the methane concentration routing inspection data by comparing the concentration change rates of the three on the target point; and finally, calculating according to the real methane concentration data to obtain a methane concentration value. In the embodiment, a concentration change curve reflecting the concentration change trend of the optical watt-level analyzer, the fixed-point measuring terminal and the patrol measuring terminal is generated through automatic learning and calculation of a gas prediction classical calculation model.
In the actual patrol process, the monitoring positions of the optical watt detector, the fixed point measuring terminal and the patrol measuring terminal are not necessarily the same, so that the values of the optical watt detector, the fixed point measuring terminal and the patrol measuring terminal are different to a certain extent, but the values of the optical watt detector, the fixed point measuring terminal and the patrol measuring terminal are basically the same in variation trend. Therefore, the invention judges the authenticity of the data according to the concentration change trends of the optical watt-hour meter, the fixed-point measuring terminal and the patrol measuring terminal, and can well ensure the authenticity of the methane concentration data acquired by the patrol system. Secondly, the authenticity of the methane concentration data acquired by the night patrol system is ensured. Furthermore, the change trend of the methane concentration in the night watching region and whether the night watching data are abnormal or not can be reflected more clearly through the concentration change rate, so that the authenticity of the methane concentration data acquired by the night watching system can be reflected better.
In the specific implementation process, after the data processing module calculates the concentration change rates of the optical watt-level detector, the fixed-point measuring terminal and the patrol measuring terminal on the target point, the concentration change rates are corrected according to the set change rate error correction value, and the data authenticity of the methane concentration optical data, the methane concentration fixed-point data and the methane concentration patrol data is judged by comparing the concentration change rates of the optical watt-level detector, the fixed-point measuring terminal and the patrol measuring terminal.
In the actual patrol process, the concentration of methane in a mine is dynamically changed, so that concentration change curves of the optical watt-hour meter, the fixed-point measuring terminal and the patrol measuring terminal are fluctuated, and further certain deviation exists in concentration change rates of the optical watt-hour meter, the fixed-point measuring terminal and the patrol measuring terminal. Therefore, the change rate error correction value is preset in the invention, so that the concentration change rates of the three can be corrected through the change rate error correction value to obtain a more accurate concentration change rate, thereby being more beneficial to improving the authenticity of the methane concentration data acquired by the night watching system.
In the specific implementation process, in step S3, the concentration change rate is corrected in the following two ways, and the data authenticity of the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data is judged.
The first method is as follows:
firstly, according to formula Ai(1-a％)≤Ai x≤Ai(1+ a%) respectively calculating the concentration change rate of the optical watt-hour meter, the fixed-point measuring terminal and the routing inspection measuring terminal after correction; in the formula, AiDenotes the rate of change of concentration, Ai xThe corrected concentration change rate is shown, and a% shows a change rate error correction value;
then, A is judged1 x∩A2 x∩A3 xWhether the data are empty sets or not is judged, and if yes, the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data are judged to be real data; otherwise, judging that the methane concentration optical data, the methane concentration fixed point data and the methane concentration inspection data are unreal data (marking on corresponding measuring points of a concentration change curve); in the formula, A1 xShows the concentration change rate after correction of the optical watt-level meter, A2 xRepresents the corrected concentration change rate of the fixed-point measurement terminal, A3 xAnd expressing the concentration change rate corrected by the inspection measurement terminal.
The second method comprises the following steps:
first, according to formula B ═ (a)1+A2+A3) Calculating the average concentration change rate of the optical watt-hour meter, the fixed-point measuring terminal and the routing inspection measuring terminal; wherein B represents the average concentration change rate, A1Indicates the concentration change rate of the optical watt meter, A2Indicating the rate of change of concentration, A, of a fixed-point measurement terminal3Representing the concentration change rate of the polling measurement terminal;
then, judging formula B ∈ [ A ]i(1-a％),Ai(1+a％)]If yes, judging that the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data are real data; otherwise, judging that the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data are not realData (labeling on corresponding measuring points of the concentration change curve); in the formula, AiThe concentration change rate of any one of the optical watt-hour meter, the fixed-point measuring terminal and the inspection measuring terminal is shown, and the a% shows the error correction value of the change rate.
In the specific implementation process, after the data processing module judges that the real methane concentration data are obtained, the arithmetic mean value of the real methane concentration data is calculated to be used as the methane concentration value in the mine. In the invention, the arithmetic mean value of the real methane concentration data is calculated to be used as the methane concentration value in the mine, which is beneficial to further reducing the error of the methane concentration data.
In the specific implementation process, the inspection measurement terminal comprises:
the methane measuring module is used for acquiring methane concentration inspection data in the mine;
the positioning module is used for acquiring the position positioning information of the night patrol personnel;
and the communication module is used for uploading the methane concentration inspection data in the mine and the position positioning information of the inspection personnel to the data processing module.
According to the invention, the methane concentration inspection data in the mine is obtained and uploaded, so that the gas data can be fed back in time, and the inspection system can find and process dangers in time, thereby being beneficial to improving the monitoring effect and monitoring reliability of the mine gas. And the position positioning information of the patrol personnel is acquired and uploaded, so that the patrol system can confirm whether the patrol personnel check in place according to the specified line, time, place and times, the patrol personnel can be managed in an auxiliary manner, and the monitoring effect and the monitoring reliability of the mine gas can be improved.
In a specific implementation process, the positioning module comprises a UWB positioning unit used for acquiring physical position information of the patrol personnel, or a RFID radio frequency unit used for communicating with RFID tag data set in a mine to acquire regional positioning information of the patrol personnel, or a NFC unit used for communicating with passive tag data set in the mine to acquire fixed-point positioning information of the patrol personnel.
According to the invention, a UWB positioning unit, an RFID radio frequency unit or an NFC unit can be selected according to requirements to complete the positioning of the patrol personnel. The UWB positioning module has the main function of providing position information service based on UWB technology and supporting high-precision positioning. The physical position information of the handheld terminal can be accurately obtained by matching with a mine GIS (geographic information system) based on accurate positioning; the RFID radio frequency module has the main function of providing area positioning service based on the 2.4G radio frequency technology; the NFC module has the main function of providing 13.56M passive near field communication service and can closely identify the passive tag so as to achieve the manual positioning function.
In the specific implementation process, the data processing module is used for calculating and generating the routing inspection track information of the routing inspection personnel according to the position positioning information of the routing inspection personnel. According to the invention, the patrol track information of the patrol personnel can be calculated and generated according to the position positioning information of the patrol personnel, so that whether the patrol personnel check in place according to the specified line, time, place and times can be better confirmed, and the patrol personnel can be better managed in an auxiliary manner.
In the specific implementation process, the data processing module is used for updating the set routing inspection route according to the routing inspection track information of each routing inspection worker. According to the invention, the set routing inspection route can be updated according to the routing inspection track information of each routing inspection worker, so that the routing of the routing inspection route of the routing inspection workers is more reasonable, and the routing inspection effect of coal mine gas is favorably improved.
Example two:
the embodiment further discloses a coal mine gas dynamic patrol method on the basis of the first embodiment.
A coal mine gas dynamic patrol method is implemented based on a patrol system in the first embodiment, and specifically comprises the following steps:
s1: respectively acquiring methane concentration optical data, methane concentration fixed point data and methane concentration polling data of the optical watt-hour meter, the fixed point measurement terminal and the polling measurement terminal;
s2: respectively calculating and generating concentration change curves reflecting concentration change trends of the optical watt-hour detector, the fixed-point measuring terminal and the patrol measuring terminal according to the methane concentration optical data, the methane concentration fixed-point data and the methane concentration patrol data; (ii) a
S3: respectively calculating the concentration change rates of the optical watt-hour meter, the fixed point measuring terminal and the patrol measuring terminal on a target point according to the concentration change curves of the optical watt-hour meter, the fixed point measuring terminal and the patrol measuring terminal, and respectively judging the data authenticity of the optical methane concentration data, the fixed point methane concentration data and the patrol methane concentration data by comparing the concentration change rates on the target point;
s4: and calculating to obtain the methane concentration value in the mine according to the real methane concentration data.
In the invention, the data authenticity of the optical data of the methane concentration, the fixed point data of the methane concentration and the patrol data of the methane concentration is respectively judged according to the concentration variation trends of the optical data of the methane concentration, the fixed point data of the methane concentration and the patrol data of the methane concentration, namely the gas data triple comparison of the optical watt-hour meter, the fixed point measuring terminal and the patrol measuring terminal is realized, so that the authenticity of each methane concentration data can be judged, and the control effect of the patrol system on the gas of the coal mine can be improved. Secondly, the optical tile detector, the fixed point measurement terminal and the patrol inspection measurement terminal are used for respectively acquiring methane concentration patrol inspection data, methane concentration fixed point data and methane concentration patrol inspection data, namely the methane concentration data in a mine are acquired more comprehensively, and the methane concentration patrol inspection data and the methane concentration fixed point data of the optical tile detector and the fixed point measurement terminal can be used as data references of the methane concentration patrol inspection data acquired by the patrol inspection measurement terminal, so that the reality of the methane concentration data acquired by the patrol inspection system can be ensured.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. The utility model provides a colliery gas developments system of patrolling, its characterized in that includes:
the optical watt detector is used for acquiring optical data of methane concentration in the mine;
the fixed-point measurement terminal is arranged at each designated position in the mine and used for obtaining fixed-point data of methane concentration in the mine;
the inspection measuring terminal is carried by an inspector and is used for acquiring inspection data of the methane concentration in the mine;
the data processing module is used for respectively calculating the concentration change trends of the optical watt-hour detector, the fixed-point measuring terminal and the patrol measuring terminal according to the methane concentration optical data, the methane concentration fixed-point data and the methane concentration patrol data; then respectively judging the data authenticity of the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data according to the concentration variation trends of the three; and finally, calculating according to the real methane concentration data to obtain the methane concentration value in the mine.
2. The coal mine gas dynamic patrol system according to claim 1, wherein: the data processing module firstly calculates and generates concentration change curves reflecting concentration change trends of the optical watt-level detector, the fixed-point measuring terminal and the patrol measuring terminal according to the optical methane concentration data, the fixed-point methane concentration data and the patrol data; then respectively calculating the concentration change rates of the three on a target point according to the concentration change curves of the three, and respectively judging the data authenticity of the methane concentration optical data, the methane concentration fixed point data and the methane concentration routing inspection data by comparing the concentration change rates of the three on the target point; and finally, calculating according to the real methane concentration data to obtain a methane concentration value.
3. The coal mine gas dynamic patrol system according to claim 2, wherein: after the data processing module calculates the concentration change rates of the optical watt-level detector, the fixed-point measuring terminal and the patrol measuring terminal on the target point, the concentration change rates are corrected according to the set change rate error correction value, and the data authenticity of the methane concentration optical data, the methane concentration fixed-point data and the methane concentration patrol data is judged by comparing the concentration change rates of the optical watt-level detector, the fixed-point measuring terminal and the patrol measuring terminal.
4. The coal mine gas dynamic patrol system according to claim 3, wherein: in step S3, the concentration change rate is corrected by the following steps, and the data authenticity of the methane concentration optical data, the methane concentration setpoint data, and the methane concentration inspection data is judged:
firstly, according to formula Ai(1-a％)≤Ai x≤Ai(1+ a%) respectively calculating the concentration change rate of the optical watt-hour meter, the fixed-point measuring terminal and the routing inspection measuring terminal after correction; in the formula, AiDenotes the rate of change of concentration, Ai xThe corrected concentration change rate is shown, and a% shows a change rate error correction value;
then, A is judged1 x∩A2 x∩A3 xWhether the data are empty sets or not is judged, and if yes, the methane concentration optical data, the methane concentration fixed point data and the methane concentration polling data are judged to be real data; otherwise, judging that the methane concentration optical data, the methane concentration fixed point data and the methane concentration inspection data are unreal data; in the formula, A1 xShows the concentration change rate after correction of the optical watt-level meter, A2 xRepresents the corrected concentration change rate of the fixed-point measurement terminal, A3 xAnd expressing the concentration change rate corrected by the inspection measurement terminal.
5. The coal mine gas dynamic patrol system according to claim 1, wherein: and after the data processing module judges that the real methane concentration data are obtained, calculating the arithmetic mean value of the real methane concentration data as the methane concentration value in the mine.
6. The coal mine gas dynamic patrol system according to claim 1, wherein the patrol inspection measurement terminal comprises:
the methane measuring module is used for acquiring methane concentration inspection data in the mine;
the positioning module is used for acquiring the position positioning information of the night patrol personnel;
and the communication module is used for uploading the methane concentration inspection data in the mine and the position positioning information of the inspection personnel to the data processing module.
7. The coal mine gas dynamic patrol system according to claim 6, wherein: the positioning module comprises one or more of a UWB positioning unit, a RFID radio frequency unit or a NFC unit; the UWB positioning unit is used for acquiring physical positioning information of the night patrol personnel; the RFID radio frequency unit is used for carrying out data communication with RFID tags arranged in a mine so as to obtain the regional positioning information of the patrol personnel; and the NFC unit is used for carrying out data communication with a passive tag arranged in a mine so as to acquire fixed-point positioning information of the night patrol personnel.
8. The coal mine gas dynamic patrol system according to claim 6, wherein: and the data processing module is used for calculating and generating the patrol track information of the patrol personnel according to the position positioning information of the patrol personnel.
9. The coal mine gas dynamic patrol system of claim 8, wherein: and the data processing module is used for updating the set routing inspection route according to the routing inspection track information of each routing inspection personnel.
10. A coal mine gas dynamic patrol method is implemented based on the patrol system in claim 1, and specifically comprises the following steps:
s1: respectively acquiring methane concentration optical data, methane concentration fixed point data and methane concentration polling data of the optical watt-hour meter, the fixed point measurement terminal and the polling measurement terminal;
s2: respectively calculating and generating concentration change curves reflecting concentration change trends of the optical watt-hour detector, the fixed-point measuring terminal and the patrol measuring terminal according to the methane concentration optical data, the methane concentration fixed-point data and the methane concentration patrol data; (ii) a
S3: respectively calculating the concentration change rates of the optical watt-hour meter, the fixed point measuring terminal and the patrol measuring terminal on a target point according to the concentration change curves of the optical watt-hour meter, the fixed point measuring terminal and the patrol measuring terminal, and respectively judging the data authenticity of the optical methane concentration data, the fixed point methane concentration data and the patrol methane concentration data by comparing the concentration change rates on the target point;
s4: and calculating to obtain the methane concentration value in the mine according to the real methane concentration data.
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