CN107064553B - A kind of method and apparatus of mine ventilation system Real-time security monitoring - Google Patents
A kind of method and apparatus of mine ventilation system Real-time security monitoring Download PDFInfo
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- CN107064553B CN107064553B CN201710294105.6A CN201710294105A CN107064553B CN 107064553 B CN107064553 B CN 107064553B CN 201710294105 A CN201710294105 A CN 201710294105A CN 107064553 B CN107064553 B CN 107064553B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/15—Correlation function computation including computation of convolution operations
Abstract
The present invention provides a kind of method of mine ventilation system Real-time security monitoring, and including obtaining the vortex frequency by ultrasonic wind speed sensor surveyed mine ventilation system each moment, and use Karman vortex section principle calculates the wind speed at each moment；It determines the area in mine ventilation system head piece section, and according to the area in head piece section and the wind speed at each moment, obtains the vent flow at each moment, and calculate vent flow mean value and standard deviation；It determines vent flow safe range, and according to vent flow safe range and vent flow mean value and standard deviation, obtains actual measurement reliability；According to vent flow safe range, theoretical reliability scope is obtained using preset composite S impson formula；Judge to survey whether reliability is located in theoretical reliability scope；It is, then safety；It is no, then there is failure and exports warning message.Implement the present invention, can real-time quantitative monitoring mine ventilating system the degree of reliability, guarantee mine safety reliably run.
Description
Technical field
The present invention relates to mine safety detection technique field more particularly to a kind of mine ventilation system Real-time security monitorings
Method and apparatus.
Background technique
The large complicated pass that mine ventilation system is made of several subsystems such as ventilation network, main fan and its unit
Connection system, it respectively provides enough fresh air volumes with wind field by mine, guarantees working space fair-weather conditions, water down or dilute
Release toxic and harmful gas and mine dust etc..With the growth of the mine ventilation system length of service, ventilation equipment gradually appear aging sign
Million, for network structure it can also happen that dynamic change, a possibility that promoting system and its unit to break down increase causes ventage
System reduces or loses scheduled function, or even causes catastrophic failure, generates serious social influence and huge economic loss.
Therefore, mine ventilation system monitoring is to guarantee the important means of system safety operation.
Since mine ventilation system has complicated relating attribute so that the mine ventilation system show as too many levels,
Randomness and non-linear, is easy to produce random fault or accident potential.However, the detection of mine ventilation system is generally all adopted at present
With mechanical and manual method, although some hidden danger can be eliminated, cannot in real time, safe and reliable, quantitatively judgment and detection is logical
The operating condition and stability of wind system.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that providing a kind of mine ventilation system Real-time security monitoring
Method and system, can real-time quantitative monitoring mine ventilating system the degree of reliability, guarantee mine safety reliably run.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of mine ventilation system Real-time security monitorings
Method, which comprises
The vortex frequency by ultrasonic wind speed sensor surveyed mine ventilation system each moment is obtained, and is obtained according to described
The vortex frequency at the mine ventilation system got each moment, using Karman vortex section principle calculate mine ventilation system it is each when
The wind speed at quarter；
Determine the area in mine ventilation system head piece section, and according to the area in mine ventilation system head piece section with
And the wind speed at calculated mine ventilation system each moment, the vent flow at mine ventilation system each moment is obtained,
And according to the vent flow at obtained mine ventilation system each moment, the equal of mine ventilation system vent flow is calculated
Value and its corresponding standard deviation；
It determines the vent flow safe range of mine ventilation system, and is pacified according to the vent flow of the mine ventilation system
The mean value and its corresponding standard deviation of gamut and the mine ventilation system vent flow, obtain the actual measurement of mine ventilation system
Reliability；
According to the vent flow safe range of the mine ventilation system, using preset composite S impson formula to institute
The vent flow safe range for stating mine ventilation system is calculated, and the theoretical reliability scope of mine ventilation system is obtained；
Whether the actual measurement reliability of the mine ventilation system obtained described in judgement is located at the obtained mine ventilation system
Theoretical reliability scope in；
If it is, output mine ventilation system safety；No, then exporting mine ventilation system, there are failures, and further
Export warning message.
Wherein, the ultrasonic wind speed sensor includes power supply, ultrasonic wave modulation demodulator circuit, signal output apparatus sum number
According to storage circuit.
Wherein, the vent flow safe range of the determining mine ventilation system, and according to the mine ventilation system
The mean value and its corresponding standard deviation of vent flow safe range and the mine ventilation system vent flow, obtain mine ventilation
The specific steps of the actual measurement reliability of system include:
It determines the vent flow safe range of mine ventilation system, and utilizes formulaThe probability of malfunction F (A) of mine ventilation system is obtained, and
The probability of malfunction F (A) of the mine ventilation system further obtained according to obtains the actual measurement reliability R of mine ventilation system
(A)；Wherein, R (A)=1-F (A)；[A1,A2] be mine ventilation system vent flow safe range；μ is mine ventilation system
The mean value of vent flow, σ are the standard deviation of mine ventilation system vent flow.
The embodiment of the invention also provides a kind of device of mine ventilation system Real-time security monitoring, described device includes:
First computing unit, for obtaining by the whirlpool at ultrasonic wind speed sensor surveyed mine ventilation system each moment
Frequency, and according to the vortex frequency at the mine ventilation system got each moment, it is calculated using Karman vortex section principle
The wind speed at mine ventilation system each moment；
Second computing unit, for determining the area in mine ventilation system head piece section, and according to the mine ventilation system
The area and the wind speed at calculated mine ventilation system each moment in system head piece section, it is each to obtain mine ventilation system
The vent flow at a moment, and according to the vent flow at obtained mine ventilation system each moment, it is logical to calculate mine
The mean value of wind system vent flow and its corresponding standard deviation；
Third computing unit, for determining the vent flow safe range of mine ventilation system, and it is logical according to the mine
The mean value and its corresponding standard deviation of the vent flow safe range of wind system and the mine ventilation system vent flow, obtain
The actual measurement reliability of mine ventilation system；
4th computing unit, for the vent flow safe range according to the mine ventilation system, using preset multiple
It closes Simpson formula to calculate the vent flow safe range of the mine ventilation system, obtains mine ventilation system
Theoretical reliability scope；
Judging unit, for judging the actual measurement reliability of the obtained mine ventilation system obtains described in whether being located at
In the theoretical reliability scope of mine ventilation system；
First output unit, for exporting mine ventilation system safety；
Second output unit, for exporting mine ventilation system, there are failures, and further export warning message.
Wherein, the ultrasonic wind speed sensor includes power supply, ultrasonic wave modulation demodulator circuit, signal output apparatus sum number
According to storage circuit.
The implementation of the embodiments of the present invention has the following beneficial effects:
In embodiments of the present invention, using vent flow as a stochastic variable, according to Reliability Engineering and random theory
Actual measurement reliability and theoretical reliability scope are proved out respectively and is compared, and further reflect that mine is logical by comparing result
The safety of wind system, so as to real-time quantitative the degree of reliability of monitoring mine ventilating system, guarantees mine safety reliably
Operation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without any creative labor, according to
These attached drawings obtain other attached drawings and still fall within scope of the invention.
Fig. 1 is a kind of flow chart of the method for mine ventilation system Real-time security monitoring provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of the device of mine ventilation system Real-time security monitoring provided in an embodiment of the present invention
Figure.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
As shown in Figure 1, in the embodiment of the present invention, a kind of method of the mine ventilation system Real-time security monitoring provided,
The described method includes:
Step S1, the vortex frequency by ultrasonic wind speed sensor surveyed mine ventilation system each moment, and root are obtained
According to the vortex frequency at the mine ventilation system got each moment, mine ventilation system is calculated using Karman vortex section principle
It unites the wind speed at each moment；
Detailed process is, by the vortex frequency at ultrasonic wind speed sensor measurement mine ventilation system each moment, and
Using the formula (1) of Karman vortex section principle, the wind speed at mine ventilation system each moment is calculated:
In formula (1), f is the vortex frequency of a certain moment mine ventilation system, and v is the wind of a certain moment mine ventilation system
Speed, d are the eddy generator line footpath of a certain moment mine ventilation system, StFor Si Telahaer coefficient (Reynolds number 200~
In 50000 ranges, StFor constant 0.21).
In embodiments of the present invention, ultrasonic wind speed sensor includes power supply, ultrasonic wave modulation demodulator circuit, signal output
Circuit and data storage circuitry.
Step S2, the area in mine ventilation system head piece section is determined, and according to mine ventilation system head piece section
Area and the wind speed at calculated mine ventilation system each moment, obtain the logical of mine ventilation system each moment
Wind flow, and according to the vent flow at obtained mine ventilation system each moment, calculate mine ventilation system ventilation
The mean value of flow and its corresponding standard deviation；
Detailed process is the area S for determining mine ventilation system head piece section, and according to formula (2), obtains mine ventilation
The vent flow at system each moment:
A=vS (2)；
The stochastic variable for the A at mine ventilation system each moment being regarded as a Normal Distribution, when finding out this section
The average value of interior vent flow and the standard deviation of vent flow.The method of calculating are as follows:
In formula (3) and (4), μ is the mean value of mine ventilation system vent flow, and σ is the mark of Mine Ventilation System amount
It is quasi- poor.
Step S3, the vent flow safe range of mine ventilation system is determined, and according to the logical of the mine ventilation system
The mean value and its corresponding standard deviation of wind flow safe range and the mine ventilation system vent flow, obtain mine ventilation system
The actual measurement reliability of system；
Detailed process is the vent flow safe range [A for determining mine ventilation system1,A2], and formula (5) are utilized, it obtains
To the probability of malfunction F (A) of mine ventilation system:
The reality of mine ventilation system is further obtained using formula (6) according to the probability of malfunction F (A) of mine ventilation system
It surveys reliability R (A):
R (A)=1-F (A) (6).
Step S4, public using preset composite S impson according to the vent flow safe range of the mine ventilation system
Formula calculates the vent flow safe range of the mine ventilation system, obtains the theoretical reliability model of mine ventilation system
It encloses；
Detailed process is to carry out data processing and calculating based on Simpson method, the theory for obtaining mine ventilation system can
By spending range.The following steps are included:
(1) the vent flow safe range [A of mine ventilation system1,A2] discretization is carried out, it is divided into n equal part, step is
Stepping length, it may be assumed that
A1=x0< x1< ... < xn=A2
Step=(A2-A1)/n, xi=A1+ i*step, i=0,1 ..., n.
(2) the ventilation reliability of mine ventilation system is carried out discrete:
(3) it is integrated using Simpson method:
Wherein, xi+0.5For [xi,xi+1]
Intermediate value.
And so on, by each xiIt is calculated, obtained reliability set forms theoretical reliability scope.
Step S5, it is logical whether the actual measurement reliability of the mine ventilation system obtained described in judgement is located at the obtained mine
In the theoretical reliability scope of wind system；If it is, performing the next step rapid S6；If it is not, then the S7 that gos to step；
Detailed process is, the actual measurement reliability of mine ventilation system and theoretical reliability scope are compared, and according to
Different comparing results exports different conclusions.
Step S6, output mine ventilation system safety；
Step S7, there are failures for output mine ventilation system, and further export warning message.
As shown in Fig. 2, in the embodiment of the present invention, a kind of device of the mine ventilation system Real-time security monitoring provided,
Described device includes:
First computing unit 110, for obtaining by ultrasonic wind speed sensor surveyed mine ventilation system each moment
Vortex frequency, and according to the vortex frequency at the mine ventilation system got each moment, using Karman vortex section principle meter
Calculate the wind speed at mine ventilation system each moment；
Second computing unit 120, for determining the area in mine ventilation system head piece section, and according to the mine ventilation
The area in system head piece section and the wind speed at calculated mine ventilation system each moment, obtain mine ventilation system
The vent flow at each moment, and according to the vent flow at obtained mine ventilation system each moment, calculate mine
The mean value of ventilating system vent flow and its corresponding standard deviation；
Third computing unit 130, for determining the vent flow safe range of mine ventilation system, and according to the mine
The mean value and its corresponding standard deviation of the vent flow safe range of ventilating system and the mine ventilation system vent flow, obtain
To the actual measurement reliability of mine ventilation system；
4th computing unit 140, for the vent flow safe range according to the mine ventilation system, use is preset
Composite S impson formula calculates the vent flow safe range of the mine ventilation system, obtains mine ventilation system
Theoretical reliability scope；
Judging unit 150, for judging whether the actual measurement reliability of the obtained mine ventilation system is located at described obtain
In the theoretical reliability scope of the mine ventilation system arrived；
First output unit 160, for exporting mine ventilation system safety；
Second output unit 170, for exporting mine ventilation system, there are failures, and further export warning message.
Wherein, the ultrasonic wind speed sensor includes power supply, ultrasonic wave modulation demodulator circuit, signal output apparatus sum number
According to storage circuit.
The implementation of the embodiments of the present invention has the following beneficial effects:
In embodiments of the present invention, using vent flow as a stochastic variable, according to Reliability Engineering and random theory
Actual measurement reliability and theoretical reliability scope are proved out respectively and is compared, and further reflect that mine is logical by comparing result
The safety of wind system, so as to real-time quantitative the degree of reliability of monitoring mine ventilating system, guarantees mine safety reliably
Operation.
It is worth noting that, in the above system embodiment, included each system unit only according to function logic into
What row divided, but be not limited to the above division, as long as corresponding functions can be realized；In addition, each functional unit
Specific name is also only for convenience of distinguishing each other, the protection scope being not intended to restrict the invention.
Those of ordinary skill in the art will appreciate that implement the method for the above embodiments be can be with
Relevant hardware is instructed to complete by program, the program can be stored in a computer readable storage medium,
The storage medium, such as ROM/RAM, disk, CD.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (4)
1. a kind of method of mine ventilation system Real-time security monitoring, which is characterized in that the described method includes:
The vortex frequency by ultrasonic wind speed sensor surveyed mine ventilation system each moment is obtained, and is got according to described
Mine ventilation system each moment vortex frequency, mine ventilation system each moment is calculated using Karman vortex section principle
Wind speed；
Determine the area in mine ventilation system head piece section, and according to the area in mine ventilation system head piece section and institute
The wind speed for stating calculated mine ventilation system each moment obtains the vent flow at mine ventilation system each moment, and root
According to the vent flow at obtained mine ventilation system each moment, calculate mine ventilation system vent flow mean value and
Its corresponding standard deviation；
Determine the vent flow safe range of mine ventilation system, and according to the safe model of the vent flow of the mine ventilation system
The mean value and its corresponding standard deviation with the mine ventilation system vent flow are enclosed, the actual measurement for obtaining mine ventilation system is reliable
Degree；
According to the vent flow safe range of the mine ventilation system, using preset composite S impson formula to the mine
The vent flow safe range of well ventilating system is calculated, and the theoretical reliability scope of mine ventilation system is obtained；
Whether the actual measurement reliability of the mine ventilation system obtained described in judgement is located at the reason of the obtained mine ventilation system
By in reliability scope；
If it is, output mine ventilation system safety；No, then exporting mine ventilation system, there are failures, and further export
Warning message；
The vent flow safe range of the determining mine ventilation system, and pacified according to the vent flow of the mine ventilation system
The mean value and its corresponding standard deviation of gamut and the mine ventilation system vent flow, obtain the actual measurement of mine ventilation system
The specific steps of reliability include:
It determines the vent flow safe range of mine ventilation system, and utilizes formulaThe probability of malfunction F (A) of mine ventilation system is obtained, and
The probability of malfunction F (A) of the mine ventilation system further obtained according to obtains the actual measurement reliability R of mine ventilation system
(A)；Wherein, R (A)=1-F (A)；[A1,A2] be mine ventilation system vent flow safe range；μ is mine ventilation system
The mean value of vent flow, σ are the standard deviation of mine ventilation system vent flow.
2. the method as described in claim 1, which is characterized in that the ultrasonic wind speed sensor includes power supply, ultrasonic wave tune
Demodulator circuit, signal output apparatus and data storage circuitry processed.
3. a kind of device of mine ventilation system Real-time security monitoring, which is characterized in that described device includes:
First computing unit, for obtaining the whirlpool frequency by ultrasonic wind speed sensor surveyed mine ventilation system each moment
Rate, and according to the vortex frequency at the mine ventilation system got each moment, ore removal is calculated using Karman vortex section principle
The wind speed at well ventilating system each moment；
Second computing unit, for determining the area in mine ventilation system head piece section, and according to the mine ventilation system stream
The area and the wind speed at calculated mine ventilation system each moment in mouthful section, obtain mine ventilation system it is each when
The vent flow at quarter, and according to the vent flow at obtained mine ventilation system each moment, calculate mine ventilation system
The mean value and its corresponding standard deviation of system vent flow；
Third computing unit, for determining the vent flow safe range of mine ventilation system, and according to the mine ventilation system
The mean value and its corresponding standard deviation of the vent flow safe range of system and the mine ventilation system vent flow, obtain mine
The actual measurement reliability of ventilating system；
4th computing unit, for the vent flow safe range according to the mine ventilation system, using preset compound
Simpson formula calculates the vent flow safe range of the mine ventilation system, obtains the reason of mine ventilation system
By reliability scope；
Judging unit, for judging whether the actual measurement reliability of the obtained mine ventilation system is located at the obtained mine
In the theoretical reliability scope of ventilating system；
First output unit, for exporting mine ventilation system safety；
Second output unit, for exporting mine ventilation system, there are failures, and further export warning message.
4. device as claimed in claim 3, which is characterized in that the ultrasonic wind speed sensor includes power supply, ultrasonic wave tune
Demodulator circuit, signal output apparatus and data storage circuitry processed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2619626A (en) * | 2021-11-10 | 2023-12-13 | Univ Warwick | Air flow measuring apparatus |
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| CN104951588A (en) * | 2015-03-16 | 2015-09-30 | 中国矿业大学 | Aided design method for mine ventilation systems |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201215481D0 (en) * | 2012-08-30 | 2012-10-17 | Mojo Maritime Ltd | Apparatus and method |
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|---|---|---|---|---|
| CN101577408A (en) * | 2009-03-25 | 2009-11-11 | 中国电力科学研究院 | Comprehensive analysis method of reliability of transmission line tower structure |
| CN102650214A (en) * | 2012-05-31 | 2012-08-29 | 中煤科工集团重庆研究院 | Early warning method and system for on-line monitoring and analysis of mine ventilation system |
| CN102787860A (en) * | 2012-08-15 | 2012-11-21 | 太原理工大学 | Automatic mind roadway air volume regulating device |
| CN103603691A (en) * | 2013-11-28 | 2014-02-26 | 煤炭科学研究总院 | Mine ventilation dynamic resolving and analysis early warning method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2619626A (en) * | 2021-11-10 | 2023-12-13 | Univ Warwick | Air flow measuring apparatus |
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