CN113240889B - Dangerous gas dangerous case early warning method and system for mine - Google Patents
Dangerous gas dangerous case early warning method and system for mine Download PDFInfo
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- CN113240889B CN113240889B CN202110535560.7A CN202110535560A CN113240889B CN 113240889 B CN113240889 B CN 113240889B CN 202110535560 A CN202110535560 A CN 202110535560A CN 113240889 B CN113240889 B CN 113240889B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital using a threshold to release an alarm or displaying means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital
- G01N33/0067—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital by measuring the rate of variation of the concentration
Abstract
The invention particularly relates to a dangerous gas dangerous case early warning method and system for a mine. The method comprises the following steps: acquiring dangerous gas concentration and gas flow data corresponding to each construction area and each connecting channel; calculating gas flow paths corresponding to the construction areas according to gas flow data of the construction areas and the connecting channels and map layout data of the mine; predicting gas intersection points of the dangerous gas among different construction areas according to the gas flow paths and the dangerous gas concentrations of the construction areas and the dangerous gas concentrations of the connecting channels; and then when the dangerous gas concentration corresponding to the gas junction is greater than or equal to the set dangerous concentration threshold, taking the corresponding gas junction as a dangerous junction. The invention also correspondingly discloses a dangerous gas early warning system. The dangerous gas dangerous case early warning method and the dangerous gas dangerous case early warning system can predict the concentration change condition of the dangerous gas in the mine, so that the dangerous case early warning effect of the dangerous gas in the mine can be improved.
Description
Technical Field
The invention relates to the technical field of mine danger early warning, in particular to a dangerous gas dangerous case early warning method and system for a mine.
Background
Along with the expansion of coal mining scale and the continuous extension of depth, the coal seam gas emission amount is bigger and bigger, and hidden dangers in high gas mines and safety are more and more. Among them, the gas explosion accident has a serious influence, so controlling the gas accident is the key to realizing national coal mine safety production and coal industry continuous healthy development.
In addition to gas, other hazardous gases, which are toxic or explosive, are also present in the mine, and this can also be dangerous if their concentration exceeds a certain limit. Therefore, dangerous gases such as gas in a mine need to be monitored so as to be capable of early warning about an impending dangerous situation. For example, chinese patent publication No. CN108005721A discloses "a wireless mine gas monitoring network", which includes a local storage module for storing a current mine gas concentration value and a gas concentration value at each time point within a period of time; the forwarding and storing system module is used for forwarding gas concentration information under the mine and forwarding gas concentration, emission rate and node number information transmitted by other sensor nodes; and the analysis decision module is used for judging underground without starting a signal transmission function under the condition that the gas concentration value is lower than the alarm value.
The above-mentioned gas wireless monitoring network in the existing scheme is also a dangerous gas early warning system, and it can monitor and upload the gas concentration in the mine. In fact, the mine is generally divided into a plurality of construction areas, the construction areas are connected through connecting channels, and constructors construct in one or more (target) construction areas; meanwhile, in order to ensure the breathing supply of constructors in the mine, air can be filled into the mine through mechanical or natural ventilation power. The applicant has found that the charged air creates a "flow" in the construction area and in the connection channel, which brings the hazardous gas to flow, so that the concentration of the hazardous gas varies constantly in the respective construction area and in the connection channel. For example, the concentrations of the dangerous gases in the two construction areas are not over-standard, but the dangerous gases in the two construction areas are converged by the airflow to form a mixed airflow, and the mixed airflow has the problem of over-standard concentration of the dangerous gases due to the sharp increase of the gas concentration, so that dangerous situations of the dangerous gases are caused. However, the existing dangerous gas dangerous case early warning method only considers the current dangerous gas concentration and cannot predict the change condition of the dangerous gas concentration, so that the impending dangerous gas dangerous case cannot be early warned, and the dangerous case early warning effect of the dangerous gas in the mine is poor. Therefore, how to provide a dangerous gas dangerous case early warning method capable of predicting the concentration change condition of dangerous gas in a mine is an urgent technical problem to be solved.
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 dangerous gas dangerous case early warning method and a system capable of predicting the concentration change condition of dangerous gas in a mine, thereby improving the dangerous case early warning effect of the dangerous gas in the mine.
In order to solve the technical problems, the invention adopts the following technical scheme:
the dangerous gas dangerous case early warning method for the mine comprises the following steps:
s01: acquiring dangerous gas concentration and gas flow data corresponding to each construction area and each connecting channel;
s02: calculating gas flow paths corresponding to the construction areas according to gas flow data of the construction areas and the connecting channels and map layout data of the mine;
s03: predicting gas intersection points of the dangerous gas and corresponding dangerous gas intersection concentrations of the dangerous gas among different construction areas according to the gas flow paths and the dangerous gas concentrations of the construction areas and the dangerous gas concentrations of the connecting channels; and then when the dangerous gas concentration corresponding to the gas junction is greater than or equal to the set dangerous concentration threshold, taking the corresponding gas junction as a dangerous junction.
Preferably, the gas flow data comprises a gas flow direction and a gas flow rate.
Preferably, in step S03, the gas junction time corresponding to the gas junction point is further calculated according to the gas flow path of each construction area; and then when the dangerous gas intersection concentration corresponding to the gas intersection point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding gas intersection point as a dangerous intersection point and generating a corresponding dangerous intersection early warning signal according to the gas intersection time.
Preferably, in step S03, after the gas junction of the hazardous gas between different construction areas is predicted, the gas flow path corresponding to the gas junction is further predicted according to the gas flow data corresponding to the construction area and the map layout data of the mine; and then, calculating new gas intersection points and corresponding new dangerous gas intersection concentrations between different gas intersection points and between the gas intersection points and the construction area according to the gas flow paths and the dangerous gas intersection concentrations of the gas intersection points and the gas flow paths and the dangerous gas concentrations of other construction areas.
Preferably, the dangerous gas danger early warning method further comprises the following steps:
s04: acquiring movement state data and a target construction area corresponding to each constructor in a mine, and calculating a personnel movement path corresponding to each constructor by combining map layout data of the mine;
s05: predicting the human gas access point of the construction personnel and the dangerous gas and the corresponding dangerous gas access concentration according to the gas flow path and the dangerous gas concentration of each construction area and the personnel moving path of each construction personnel; and then when the dangerous gas approaching concentration corresponding to the human gas approaching point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding human gas approaching point as a dangerous approaching point.
Preferably, in step S05, the human air approach time corresponding to the human air approach point is further calculated according to the gas flow path of each construction area and the human movement path of the constructor; and then when the dangerous gas approaching concentration of the corresponding human gas approaching point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding human gas approaching point as a dangerous approaching point and generating a corresponding approaching dangerous early warning signal according to the human gas approaching time.
Preferably, in step S05, when the dangerous gas approach concentration at the corresponding human gas approach point is greater than or equal to the set dangerous concentration threshold, the target construction area or the movement state of the corresponding worker is adjusted so that the corresponding worker can shift the approach to the dangerous gas.
The invention also discloses a dangerous gas early warning system for a mine, which is implemented based on the dangerous gas dangerous case early warning method and specifically comprises the following steps:
the dangerous gas collecting module is arranged in each construction area and the connecting channel of the mine and used for obtaining the dangerous gas concentration corresponding to each construction area and the connecting channel;
the mobile data acquisition module is arranged in each construction area and each connecting channel of the mine and is used for acquiring gas mobile data corresponding to each construction area and each connecting channel;
the danger early warning module is used for calculating gas flow paths corresponding to the construction areas according to gas flow data of the construction areas and the connecting channels and map layout data of the mine; the gas intersection points of the hazardous gas between different construction areas, the corresponding gas intersection time and the corresponding hazardous gas intersection concentration can be predicted according to the gas flow paths and the hazardous gas concentrations of the construction areas and the hazardous gas concentrations of the connecting channels, and when the hazardous gas intersection concentration of the corresponding gas intersection points is larger than or equal to a set hazardous concentration threshold value, the corresponding gas intersection points are used as the hazardous intersection points and corresponding hazardous intersection early warning signals are generated according to the gas intersection time.
Preferably, after the danger early warning module predicts gas junction points of dangerous gas among different construction areas, the gas flow path corresponding to the gas junction points can be further predicted according to gas flow data of corresponding construction areas and map layout data of mines; and then, calculating new gas intersection points and corresponding new dangerous gas intersection concentrations between different gas intersection points and between the gas intersection points and the construction area according to the gas flow paths and the dangerous gas intersection concentrations of the gas intersection points and the gas flow paths and the dangerous gas concentrations of other construction areas.
Preferably, the hazardous gas early warning system further comprises:
the personnel data acquisition module is carried by corresponding constructors and is used for acquiring the movement state data of each constructor;
the danger early warning module is also used for calculating a personnel moving path corresponding to each constructor according to the moving state data of each constructor, the target construction area and the map layout data of the mine; the method can also predict the contact point of the construction personnel and the hazardous gas, the corresponding contact time of the construction personnel and the hazardous gas and the contact concentration of the hazardous gas according to the gas flow path and the hazardous gas concentration of each construction area and the personnel moving path of each construction personnel; and then when the dangerous gas approaching concentration of the corresponding human gas approaching point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding human gas approaching point as a dangerous approaching point and generating a corresponding approaching dangerous early warning signal according to the human gas approaching time.
Compared with the prior art, the dangerous gas danger early warning method and the dangerous gas danger early warning system have the following beneficial effects:
according to the method and the device, the gas flow paths of all the construction areas can be calculated, so that the dangerous gas flow conditions of all the construction areas can be predicted through the gas flow paths, and therefore the dangerous gas in the mine can be effectively predicted and monitored. Meanwhile, the method and the system can also predict the gas junction of the dangerous gas and the concentration of the dangerous gas between different construction areas, so that the concentration change condition of the dangerous gas in the mine can be predicted, the gas junction of the dangerous gas can be positioned, early warning on the dangerous gas dangerous case which possibly occurs can be realized in advance, constructors can be helped to avoid the dangerous gas dangerous case, and the dangerous case early warning effect of the dangerous gas in the mine can be improved.
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 and fig. 2 are logic block diagrams of a dangerous gas dangerous case early warning method in the first embodiment;
fig. 3 is a logic block diagram of a hazardous gas early warning system according to the second embodiment.
Detailed Description
The following is further detailed by the specific embodiments:
the first embodiment is as follows:
the embodiment discloses a dangerous gas dangerous case early warning method for a mine.
As shown in fig. 1, the dangerous gas dangerous case early warning method for the mine comprises the following steps:
s01: and acquiring dangerous gas concentration and gas flow data corresponding to each construction area and each connecting channel. Specifically, the hazardous gas includes gases harmful to human body or explosive, such as gas, methane, carbon monoxide, hydrogen sulfide, sulfur dioxide, and the like. The gas flow data includes a gas flow direction and a gas flow rate.
S02: and calculating gas flow paths corresponding to the construction areas according to the gas flow data of the construction areas and the connecting channels and the map layout data of the mines.
S03: predicting gas intersection points of the dangerous gas and corresponding dangerous gas intersection concentrations of the dangerous gas among different construction areas according to the gas flow paths and the dangerous gas concentrations of the construction areas and the dangerous gas concentrations of the connecting channels; and then when the dangerous gas concentration corresponding to the gas junction is greater than or equal to the set dangerous concentration threshold, taking the corresponding gas junction as a dangerous junction. Specifically, the dangerous concentration threshold may be set according to a country-related regulation.
According to the method and the device, the gas flow paths of all the construction areas can be calculated, so that the dangerous gas flow conditions of all the construction areas can be predicted through the gas flow paths, and therefore the dangerous gas in the mine can be effectively predicted and monitored. Meanwhile, the method and the system can also predict the gas junction of the dangerous gas and the concentration of the dangerous gas between different construction areas, so that the concentration change condition of the dangerous gas in the mine can be predicted, the gas junction of the dangerous gas can be positioned, early warning on the dangerous gas dangerous case which possibly occurs can be realized in advance, constructors can be helped to avoid the dangerous gas dangerous case, and the dangerous case early warning effect of the dangerous gas in the mine can be improved.
In a specific implementation process, in step S03, gas intersection time corresponding to the gas intersection point is calculated according to the gas flow path of each construction area; and then when the dangerous gas intersection concentration corresponding to the gas intersection point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding gas intersection point as a dangerous intersection point and generating a corresponding dangerous intersection early warning signal according to the gas intersection time.
According to the invention, the gas intersection time of the gas intersection point can be calculated, and a corresponding danger intersection early warning signal can be sent out when a possible dangerous gas dangerous case is predicted in advance (the danger intersection early warning signal is similar to the situation that the dangerous gas intersection concentration at the position A exceeds a dangerous concentration threshold value after thirty minutes, and the dangerous gas dangerous case can occur), so that the possible dangerous gas dangerous case can be well early warned based on the danger intersection early warning signal, and the dangerous gas early warning effect in a mine can be further improved.
In the specific implementation process, in step S03, after gas junction points of hazardous gases between different construction areas are predicted, gas flow paths corresponding to the gas junction points are further predicted according to gas flow data corresponding to the construction areas and map layout data of mines; and then, calculating new gas intersection points and corresponding new dangerous gas intersection concentrations between different gas intersection points and between the gas intersection points and the construction area according to the gas flow paths and the dangerous gas intersection concentrations of the gas intersection points and the gas flow paths and the dangerous gas concentrations of other construction areas.
In the actual early warning process, along with the flowing of airflow in a mine, dangerous gas in a certain construction area may be intersected with dangerous gas in other construction areas for multiple times, and the concentration of the dangerous gas after each intersection can be changed. For example, the dangerous gases in the construction area a and the construction area B are merged at the first gas merging point to form a "mixed gas flow" in the construction area AB; the mixed gas flow of the construction area AB and the dangerous gas of the construction area C are converged at a second gas junction to form the mixed gas flow of the construction area ABC; at this time, the concentrations of the hazardous gases in the mixed gas flow of the construction area AB and the mixed gas flow of the construction area ABC are different, and the concentrations of the hazardous gases in the mixed gas flow of the construction area AB and the concentrations of the hazardous gases in the mixed gas flow of the construction area ABC are not over-standard.
Therefore, after gas intersection points of the dangerous gas between different construction areas are predicted, new gas intersection points and new dangerous gas intersection concentration between different gas intersection points and between the gas intersection points and the construction areas can be further calculated, so that repeated intersection of the dangerous gas in the mine can be predicted, the whole process of flowing of the dangerous gas in the mine can be further predicted, the change condition of the concentration of the dangerous gas in the mine can be more comprehensively predicted, the possible dangerous gas dangerous case can be better pre-warned in advance, and the dangerous case pre-warning effect of the dangerous gas in the mine can be further improved.
In a specific implementation process, referring to fig. 2, the dangerous gas dangerous case early warning method further includes the following steps:
s04: acquiring movement state data and a target construction area corresponding to each constructor in a mine, and calculating a personnel movement path corresponding to each constructor by combining map layout data of the mine;
s05: predicting the human gas access point of the construction personnel and the dangerous gas and the corresponding dangerous gas access concentration according to the gas flow path and the dangerous gas concentration of each construction area and the personnel moving path of each construction personnel; and then when the dangerous gas approaching concentration corresponding to the human gas approaching point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding human gas approaching point as a dangerous approaching point.
In the actual early warning process, the airflow carrying the hazardous gas in the mine continuously flows, and meanwhile, the constructor also moves (towards the direction of a target construction area), so that the condition that the constructor is close to (meets) the airflow with the concentration exceeding the standard of the hazardous gas easily occurs, and the constructor can encounter the hazardous gas danger at the moment. Therefore, the method calculates and predicts the personnel moving path of each constructor, predicts the personnel gas access point of the constructor and the dangerous gas access concentration, namely can predict the access condition of the constructor and the dangerous gas, and can position the personnel gas access point of the constructor and the dangerous gas, so that the possible personnel gas access dangerous case can be pre-warned in advance, the method is also beneficial to the constructor to avoid the dangerous gas dangerous case, and the dangerous case pre-warning effect of the dangerous gas in the mine can be improved.
In a specific implementation process, in step S05, the popularity approaching time corresponding to the popularity approaching point is calculated according to the gas flow path of each construction area and the staff moving path of the constructor; and then when the dangerous gas approaching concentration of the corresponding human gas approaching point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding human gas approaching point as a dangerous approaching point and generating a corresponding approaching dangerous early warning signal according to the human gas approaching time.
According to the invention, the time for the approach of the human gas to the human gas approach point can be calculated, and a corresponding approach danger early warning signal can be sent out when the probable occurrence of the 'human gas approach dangerous case' is predicted in advance (the approach danger early warning signal is similar to that after thirty minutes, a constructor B approaches the airflow with the approach concentration exceeding the dangerous concentration threshold value of the dangerous gas at the position A and the human gas approach dangerous case occurs), so that the probable occurrence of the 'human gas approach dangerous case' can be well warned based on the approach danger early warning signal, and the dangerous case early warning effect of the dangerous gas in the mine can be further improved.
In a specific implementation process, in step S05, when the dangerous gas approaching concentration corresponding to the human gas approaching point is greater than or equal to the set dangerous concentration threshold, the target construction area or the moving state of the corresponding constructor is adjusted so that the corresponding constructor can stagger the approaching of the dangerous gas.
According to the method and the device, when the possibility that the human atmosphere is close to the dangerous situation is predicted in advance, the approach of the constructors to the dangerous gas can be staggered by adjusting the target construction area or the moving state of the constructors, so that the constructors can be better protected, and the constructors can be prevented from being close to the dangerous situation due to the human atmosphere.
Example two:
the embodiment further discloses a dangerous gas early warning system for a mine on the basis of the first embodiment.
Referring to fig. 3, a dangerous gas early warning system for a mine is implemented based on a dangerous gas dangerous case early warning method of an embodiment, and specifically includes:
and the dangerous gas acquisition module is arranged in each construction area and the connecting channel of the mine and is used for acquiring the dangerous gas concentration corresponding to each construction area and the connecting channel. Specifically, the dangerous gas collection module is composed of a gas sensor, a methane sensor, a carbon monoxide sensor, a hydrogen sulfide sensor, a sulfur dioxide sensor and the like which are mature in the prior art and used for obtaining the concentration of gases which are harmful or explosive to a human body, such as gas, methane, carbon monoxide, hydrogen sulfide, sulfur dioxide and the like.
And the flow data acquisition module is arranged in each construction area and each connecting channel of the mine and is used for acquiring gas flow data corresponding to each construction area and each connecting channel. Specifically, the gas flow data includes a gas flow direction and a gas flow rate. The gas flow direction and gas flow rate are obtained by means of an air flow rate sensor well known in the art.
And the personnel data acquisition module is carried by the corresponding constructors and is used for acquiring the movement state data of each constructor. Specifically, the movement state data includes a movement speed and a movement direction of the constructor. The personnel data acquisition module is a device which is mature in the prior art and can acquire and upload the position of a constructor, such as a mine handheld terminal or a smart phone, and is used for acquiring the position of the constructor and further calculating the moving speed and the moving direction of the constructor.
The danger early warning module is used for calculating gas flow paths corresponding to the construction areas according to gas flow data of the construction areas and the connecting channels and map layout data of the mine; the gas intersection points of the hazardous gas between different construction areas, the corresponding gas intersection time and the corresponding hazardous gas intersection concentration can be predicted according to the gas flow paths and the hazardous gas concentrations of the construction areas and the hazardous gas concentrations of the connecting channels, and when the hazardous gas intersection concentration of the corresponding gas intersection points is larger than or equal to a set hazardous concentration threshold value, the corresponding gas intersection points are used as the hazardous intersection points and corresponding hazardous intersection early warning signals are generated according to the gas intersection time.
The method can calculate the gas flow path of each construction area, so that the flow condition of the dangerous gas in each construction area can be predicted through the gas flow path, and the dangerous gas in the mine can be effectively predicted and monitored. Meanwhile, the method and the system can also predict the gas junction of the dangerous gas and the concentration of the dangerous gas between different construction areas, so that the concentration change condition of the dangerous gas in the mine can be predicted, the gas junction of the dangerous gas can be positioned, early warning on the dangerous gas dangerous case which possibly occurs can be realized in advance, constructors can be helped to avoid the dangerous gas dangerous case, and the dangerous case early warning effect of the dangerous gas in the mine can be improved. Furthermore, the gas intersection time of the gas intersection point can be calculated, and a corresponding danger intersection early warning signal can be sent out when a possible dangerous gas dangerous case is predicted in advance (the danger intersection early warning signal is similar to the situation that the dangerous gas intersection concentration at the position A exceeds a dangerous concentration threshold value after thirty minutes and the dangerous gas dangerous case occurs), so that the possible dangerous gas dangerous case can be well early warned based on the danger intersection early warning signal, and the dangerous case early warning effect of the dangerous gas in the mine can be further improved.
After the danger early warning module predicts gas junction points of dangerous gas among different construction areas, the gas flow path corresponding to the gas junction points can be further predicted according to gas flow data of the corresponding construction areas and map layout data of a mine; and then, calculating new gas intersection points and corresponding new dangerous gas intersection concentrations between different gas intersection points and between the gas intersection points and the construction area according to the gas flow paths and the dangerous gas intersection concentrations of the gas intersection points and the gas flow paths and the dangerous gas concentrations of other construction areas.
According to the method, after the gas intersection points of the dangerous gas between different construction areas are predicted, the new gas intersection points and the new dangerous gas intersection concentration between different gas intersection points and between the gas intersection points and the construction areas are further calculated, so that the repeated intersection of the dangerous gas in the mine can be predicted, the whole process of the dangerous gas flowing in the mine can be further predicted, the change situation of the concentration of the dangerous gas in the mine can be more comprehensively predicted, the possible dangerous gas dangerous case can be well pre-warned in advance, and the dangerous case pre-warning effect of the dangerous gas in the mine can be further improved.
The danger early warning module is also used for calculating a personnel moving path corresponding to each constructor according to the moving state data of each constructor, the target construction area and the map layout data of the mine; the method can also predict the contact point of the construction personnel and the hazardous gas, the corresponding contact time of the construction personnel and the hazardous gas and the contact concentration of the hazardous gas according to the gas flow path and the hazardous gas concentration of each construction area and the personnel moving path of each construction personnel; and then when the dangerous gas approaching concentration of the corresponding human gas approaching point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding human gas approaching point as a dangerous approaching point and generating a corresponding approaching dangerous early warning signal according to the human gas approaching time.
The method calculates and predicts the personnel moving path of each constructor, predicts the personnel gas access point of the constructor and the dangerous gas access concentration, namely can predict the access condition of the constructor and the dangerous gas, and can position the personnel gas access point of the constructor and the dangerous gas, so that the possible personnel gas access dangerous case can be pre-warned in advance, the constructor can be helped to avoid the dangerous gas dangerous case, and the dangerous case pre-warning effect of the dangerous gas in the mine can be improved. Meanwhile, the method can calculate the time for the approach of the human gas to the human gas approach point, and can send out a corresponding approach danger early warning signal when the probable occurrence of the 'human gas approach dangerous case' is predicted in advance (the approach danger early warning signal is similar to that after thirty minutes, a constructor B approaches the airflow with the approach concentration exceeding the dangerous concentration threshold value of the dangerous gas at the position A and the human gas approach dangerous case occurs), so that the 'human gas approach dangerous case' which is probable occurrence can be well warned based on the approach danger early warning signal, and the dangerous case early warning effect of the dangerous gas in the mine can be further improved.
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 dangerous gas dangerous case early warning method for the mine is characterized by comprising the following steps of:
s01: acquiring dangerous gas concentration and gas flow data corresponding to each construction area and each connecting channel;
s02: calculating gas flow paths corresponding to the construction areas according to gas flow data of the construction areas and the connecting channels and map layout data of the mine;
s03: predicting gas intersection points of the dangerous gas and corresponding dangerous gas intersection concentrations of the dangerous gas among different construction areas according to the gas flow paths and the dangerous gas concentrations of the construction areas and the dangerous gas concentrations of the connecting channels; and then when the dangerous gas concentration corresponding to the gas junction is greater than or equal to the set dangerous concentration threshold, taking the corresponding gas junction as a dangerous junction.
2. The hazardous gas dangerous situation early warning method for mines according to claim 1, wherein: the gas flow data includes a gas flow direction and a gas flow rate.
3. The hazardous gas dangerous situation early warning method for mines according to claim 1, wherein: in step S03, gas intersection time corresponding to the gas intersection point is also calculated according to the gas flow path of each construction area; and then when the dangerous gas intersection concentration corresponding to the gas intersection point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding gas intersection point as a dangerous intersection point and generating a corresponding dangerous intersection early warning signal according to the gas intersection time.
4. The hazardous gas dangerous situation early warning method for mines according to claim 1, wherein: in step S03, after gas junction points of dangerous gas between different construction areas are obtained through prediction, gas flow paths corresponding to the gas junction points are further predicted according to gas flow data of the corresponding construction areas and map layout data of mines; and then, calculating new gas intersection points and corresponding new dangerous gas intersection concentrations between different gas intersection points and between the gas intersection points and the construction area according to the gas flow paths and the dangerous gas intersection concentrations of the gas intersection points and the gas flow paths and the dangerous gas concentrations of other construction areas.
5. The hazardous gas dangerous situation early warning method for mines according to claim 1, further comprising the steps of:
s04: acquiring movement state data and a target construction area corresponding to each constructor in a mine, and calculating a personnel movement path corresponding to each constructor by combining map layout data of the mine;
s05: predicting the human gas access point of the construction personnel and the dangerous gas and the corresponding dangerous gas access concentration according to the gas flow path and the dangerous gas concentration of each construction area and the personnel moving path of each construction personnel; and then when the dangerous gas approaching concentration corresponding to the human gas approaching point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding human gas approaching point as a dangerous approaching point.
6. The hazardous gas dangerous situation early warning method for mines according to claim 5, wherein: in step S05, the popularity approaching time corresponding to the popularity approaching point is also calculated according to the gas flow path of each construction area and the staff movement path of the constructor; and then when the dangerous gas approaching concentration of the corresponding human gas approaching point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding human gas approaching point as a dangerous approaching point and generating a corresponding approaching dangerous early warning signal according to the human gas approaching time.
7. The hazardous gas dangerous situation early warning method for mines according to claim 5, wherein: in step S05, when the dangerous gas approach concentration corresponding to the human gas approach point is greater than or equal to the set dangerous concentration threshold, the target construction area or the movement state of the corresponding construction worker is adjusted so that the corresponding construction worker can deviate from the approach of the dangerous gas.
8. The dangerous gas early warning system for the mine is implemented based on the dangerous gas dangerous case early warning method in claim 1, and specifically comprises the following steps:
the dangerous gas collecting module is arranged in each construction area and the connecting channel of the mine and used for obtaining the dangerous gas concentration corresponding to each construction area and the connecting channel;
the mobile data acquisition module is arranged in each construction area and each connecting channel of the mine and is used for acquiring gas mobile data corresponding to each construction area and each connecting channel;
the danger early warning module is used for calculating gas flow paths corresponding to the construction areas according to gas flow data of the construction areas and the connecting channels and map layout data of the mine; the gas intersection points of the hazardous gas between different construction areas, the corresponding gas intersection time and the corresponding hazardous gas intersection concentration can be predicted according to the gas flow paths and the hazardous gas concentrations of the construction areas and the hazardous gas concentrations of the connecting channels, and when the hazardous gas intersection concentration of the corresponding gas intersection points is larger than or equal to a set hazardous concentration threshold value, the corresponding gas intersection points are used as the hazardous intersection points and corresponding hazardous intersection early warning signals are generated according to the gas intersection time.
9. A hazardous gas early warning system for mines as set forth in claim 8, wherein: after the danger early warning module predicts gas junction points of dangerous gas among different construction areas, the gas flow path corresponding to the gas junction points can be further predicted according to gas flow data of the corresponding construction areas and map layout data of a mine; and then, calculating new gas intersection points and corresponding new dangerous gas intersection concentrations between different gas intersection points and between the gas intersection points and the construction area according to the gas flow paths and the dangerous gas intersection concentrations of the gas intersection points and the gas flow paths and the dangerous gas concentrations of other construction areas.
10. A hazardous gas early warning system for mines according to claim 8, further comprising:
the personnel data acquisition module is carried by corresponding constructors and is used for acquiring the movement state data of each constructor;
the danger early warning module is also used for calculating a personnel moving path corresponding to each constructor according to the moving state data of each constructor, the target construction area and the map layout data of the mine; the method can also predict the contact point of the construction personnel and the hazardous gas, the corresponding contact time of the construction personnel and the hazardous gas and the contact concentration of the hazardous gas according to the gas flow path and the hazardous gas concentration of each construction area and the personnel moving path of each construction personnel; and then when the dangerous gas approaching concentration of the corresponding human gas approaching point is greater than or equal to the set dangerous concentration threshold value, taking the corresponding human gas approaching point as a dangerous approaching point and generating a corresponding approaching dangerous early warning signal according to the human gas approaching time.
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