CN109736892A - A kind of mining wireless laser methane alarm system and method - Google Patents
A kind of mining wireless laser methane alarm system and method Download PDFInfo
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- CN109736892A CN109736892A CN201811385835.8A CN201811385835A CN109736892A CN 109736892 A CN109736892 A CN 109736892A CN 201811385835 A CN201811385835 A CN 201811385835A CN 109736892 A CN109736892 A CN 109736892A
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Abstract
The invention belongs to the technical fields of methane warning, more particularly to a kind of mining wireless laser methane alarm system and method, the technical issues of solution are as follows: a kind of preferable mining wireless laser methane alarm system of warning effect and method are provided, the technical solution of use are as follows: include: laser methane sensor, it is multiple, methane concentration in underground, for Collecting operation region is set；Zone Alerts terminal, it is multiple, each Zone Alerts terminal is respectively connected with multiple laser methane sensors, for receiving and showing the methane concentration signal of laser methane sensor output, when methane concentration is more than setting value, remote alarm signal, phonetic warning signal and blinking light alarm signal are issued；Long-range control host machine, for the remote alarm signal that receiving area alarm terminal issues, the methane concentration distribution of entire underground is analyzed, issues fail secure signal to electrical equipment, it issues emergency escape to instruct to Zone Alerts terminal, the sending of Zone Alerts terminal is made to withdraw caution sound.
Description
Technical field
The invention belongs to the technical fields of methane warning, and in particular to a kind of mining wireless laser methane alarm system and side
Method.
Background technique
The main component of gas is methane, and gas explosion is always the great difficult problem for perplexing mining industry, is created greater casualties
Accident occur repeatedly, cause huge loss, gas accident is one of chief threat of Safety of Coal Mine Production.
Existing Methane alarm can be carried for mining operators, or installation is solid to coal mine roadway, goaf etc.
Determine place use, is widely used in safety of coal mines detection field.
However, being currently installed in the Methane alarm of fixed-site, on the one hand, alarm passes through setting methane concentration threshold
Value is alarmed when concentration is higher than setting value by buzzer, and since underground work is a riot of sound, alarm sound is easy to be neglected
Depending on warning effect is poor；On the other hand, alarm is only capable of being monitored the methane concentration of current region, cannot make the region
Mining operators fully understand the methane environment of underground, are unfavorable for assessing whether to carry out emergency escape.
Summary of the invention
The present invention overcomes the shortcomings of the prior art, technical problem to be solved are as follows: provide a kind of warning effect compared with
Good mining wireless laser methane alarm system and method.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of mining wireless laser methane alarm system, comprising: laser methane sensor, Zone Alerts terminal and long-range control
Host processed, the laser methane sensor are arranged in down-hole coal excavation working face, exploiting field air inlet, exploiting field air return lane to be multiple
Place, for acquiring the methane concentration of above-mentioned operating area；The Zone Alerts terminal is multiple, each Zone Alerts
Terminal is respectively connected with multiple laser methane sensors, for receiving and showing the methane concentration letter of laser methane sensor output
Number, when methane concentration is more than setting value, issue remote alarm signal, phonetic warning signal and blinking light alarm signal；
The long-range control host machine, with Zone Alerts terminal wireless communication connection, the long-range report issued for receiving area alarm terminal
Alert signal analyzes the methane concentration distribution of entire underground, issues fail secure signal to electrical equipment, and sending emergency escape
Instruction to Zone Alerts terminal, the Zone Alerts terminal withdraws caution sound for issuing.
Preferably, the long-range control host machine includes: data module, for the storage region alarm terminal in the form of number
Location information and each Zone Alerts terminal connection laser methane sensor location information；Setting module, for setting
The corresponding methane concentration threshold value in fixed each operating area, in which: the corresponding methane concentration threshold value in each region set it is normal, warn
Show with urgent three threshold values, and divide color carry out threshold status label；Receiving module is issued for receiving area alarm terminal
Remote alarm signal, the remote alarm signal include: the corresponding methane concentration signal of each laser methane sensor；Analysis
Module, for carrying out threshold status calculating, working as operation to the corresponding methane concentration signal of received each laser methane sensor
When the methane concentration in region is more than preset warning value, sending is executed instruction, and described executing instruction includes: fail secure instruction
Signal and emergency escape instruction；Execution module, for executing executing instruction for analysis module output.
Preferably, the long-range control host machine further include: geography information display module, it is each for being shown on the map of underground
The location information and threshold status of a laser methane sensor.
Preferably, the warning value are as follows: coal working face, exploiting field air inlet, the methane concentration at exploiting field air return lane three are equal
More than alert thresholds or 2 more than alert thresholds, 1 more than urgent threshold value.
Preferably, the Zone Alerts terminal includes: signal receiving circuit, the signal output end with laser methane sensor
It is connected, for receiving the methane concentration signal of laser methane sensor output；Single-chip microcontroller is connected with wireless communication line, receives
Methane concentration signal, and threshold value comparison is carried out, export alarm signal；Display circuit, the output end phase of input terminal and single-chip microcontroller
Even, for showing methane concentration signal；Voice alarm circuit, input terminal is connected with the output end of single-chip microcontroller, for issuing language
Sound alarm signal；Alarm lamp is flashed, input terminal is connected with the output end of single-chip microcontroller, for issuing blinking light alarm signal；
Power circuit, for providing power supply for whole region alarm terminal；Wireless communication line is bi-directionally connected with single-chip microcontroller, is used
In establishing communication connection for Zone Alerts terminal and long-range control host machine.
Correspondingly, a kind of mining wireless laser methane alarm method, including the following steps: S10 works in down-hole coal excavation
Face, exploiting field air inlet install laser methane sensor at the air return lane of exploiting field respectively, alarm eventually in coal working face installation region
End is electrically connected laser methane sensor and Zone Alerts terminal；S20, laser methane sensor is by the methane concentration of acquisition
Signal is sent to Zone Alerts terminal；S30, Zone Alerts terminal receive and show the methane concentration of laser methane sensor output
Signal issues remote alarm signal, phonetic warning signal and blinking light warning letter when methane concentration is more than setting value
Number；S40, the remote alarm signal that long-range control host machine receiving area alarm terminal issues, analyzes the methane concentration of entire underground
Distribution issues fail secure signal to electrical equipment, and sending emergency escape and instructs to Zone Alerts terminal；S50 is electrically set
Caution sound is withdrawn in standby fail secure, the sending of Zone Alerts terminal.
Preferably, the step S40 is specifically included: S401, the position letter of storage region alarm terminal in the form of number
The location information of breath and the laser methane sensor of each Zone Alerts terminal connection；S402 sets each operating area pair
The methane concentration threshold value answered, in which: the corresponding methane concentration threshold value in each region sets normal, warning and urgent three thresholds
Value, and color is divided to carry out threshold status label；S403, the remote alarm signal that receiving area alarm terminal issues, described is remote
Journey alarm signal includes: the corresponding methane concentration signal of each laser methane sensor；S404, to received each laser methane
The corresponding methane concentration signal of sensor carries out threshold status calculating, when the methane concentration of operating area is more than preset warning
When value, sending is executed instruction, and described executing instruction includes: fail secure command signal and emergency escape instruction；S405 makes electricity
The locking of gas device powers down makes the sending of Zone Alerts terminal withdraw caution sound.
Preferably, after the step S404 further include: show each laser methane sensor on the map of underground
Location information and threshold status.
Preferably, in the step S404, the warning value are as follows: coal working face, exploiting field air inlet, exploiting field air return lane
Methane concentration at three be more than alert thresholds or 2 be more than alert thresholds, 1 be more than urgent threshold value.
Compared with the prior art, the invention has the following beneficial effects:
The present invention, which passes through, is arranged in down-hole coal excavation working face, exploiting field air inlet, the laser methane sensing at the air return lane of exploiting field
Device can the methane concentration in real time to above-mentioned operating area be monitored, when methane concentration be more than setting value when, Zone Alerts
Terminal issues remote alarm signal, phonetic warning signal and blinking light alarm signal, long-range control host machine and receives long-range report
After alert signal, the methane concentration distribution of entire underground is analyzed, fail secure signal to electrical equipment, and sending is issued and promptly removes
From instruction to Zone Alerts terminal, make Zone Alerts terminal for issue withdraw caution sound；The present invention can be super in methane concentration
When crossing setting value, Zone Alerts terminal issues phonetic warning signal and blinking light alarm signal reminds mining operators to pay attention to seeing
Examine methane concentration variation, when Zone Alerts terminal receive and issue withdraw caution sound after, orderly withdrawn；
On the one hand the present invention can repeatedly remind mining operators, be reminded in vain caused by avoiding because of environmental noise,
On the other hand, by repeatedly reminding, so that mining operators carry out before withdrawing instruction and reaching and withdraw preparation, greatly avoid
Because of the sudden personal injury of emergency escape bring, warning effect is good, and practicability is extremely strong.
Detailed description of the invention
The present invention will be further described in detail with reference to the accompanying drawing；
Fig. 1 is a kind of structural schematic diagram for mining wireless laser methane alarm system that the embodiment of the present invention one provides；
Fig. 2 is that a kind of mining wireless laser methane alarm system medium-long range provided by Embodiment 2 of the present invention controls host
Structural schematic diagram；
Fig. 3 is that a kind of mining wireless laser methane alarm system medium-long range that the embodiment of the present invention three provides controls host
Structural schematic diagram；
Zone Alerts terminal in a kind of mining wireless laser methane alarm system that Fig. 4 provides for the embodiment of the present invention four
Structural schematic diagram；
The circuit diagram of signal receiving circuit in the Zone Alerts terminal that Fig. 5 provides for the embodiment of the present invention four；
The circuit diagram of display circuit in the Zone Alerts terminal that Fig. 6 provides for the embodiment of the present invention four；
The circuit diagram of voice alarm circuit in the Zone Alerts terminal that Fig. 7 provides for the embodiment of the present invention four；
The circuit diagram of alarm lamp is flashed in the Zone Alerts terminal that Fig. 8 provides for the embodiment of the present invention four；
Fig. 9 is a kind of flow diagram for mining wireless laser methane alarm method that the embodiment of the present invention one provides；
In figure: 10 be laser methane sensor, and 20 be Zone Alerts terminal, and 30 be long-range control host machine；
201 be signal receiving circuit, and 202 be single-chip microcontroller, and 203 be display circuit, and 204 be voice alarm circuit, and 205 be sudden strain of a muscle
Bright alarm lamp, 206 be power circuit, and 207 be wireless communication line；
301 be data module, and 302 be setting module, and 303 be receiving module, and 304 be analysis module, and 305 be execution mould
Block, 306 be geography information display module.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments；Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of structural schematic diagram for mining wireless laser methane alarm system that the embodiment of the present invention one provides, such as
Shown in Fig. 1, a kind of mining wireless laser methane alarm system, comprising: laser methane sensor 10, Zone Alerts terminal 20 and remote
Process control host 30, the laser methane sensor 10 are arranged in down-hole coal excavation working face, exploiting field air inlet, exploiting field to be multiple
At air return lane, for acquiring the methane concentration of above-mentioned operating area；The Zone Alerts terminal 20, it is each described to be multiple
Zone Alerts terminal 20 is respectively connected with multiple laser methane sensors 10, for receiving and showing that laser methane sensor 10 exports
Methane concentration signal issue remote alarm signal, phonetic warning signal and flashing lamp when methane concentration is more than setting value
Light alarm signal；The long-range control host machine 30 is connect with 20 wireless telecommunications of Zone Alerts terminal, eventually for receiving area alarm
The remote alarm signal that end 20 issues, the methane concentration for analyzing entire underground are distributed, sending fail secure signal to electrical equipment,
And issue emergency escape and instruct to Zone Alerts terminal 20, the Zone Alerts terminal 20 withdraws caution sound for issuing.
The present invention can be when methane concentration be more than setting value, and Zone Alerts terminal 20 issues phonetic warning signal and sudden strain of a muscle
Bright light alarm signal reminds mining operators to pay attention to observing methane concentration variation, withdraws when Zone Alerts terminal 20 is received and issued
After caution sound, orderly withdrawn；On the one hand the present invention can repeatedly remind mining operators, be avoided because of environmental noise
Caused by remind in vain, on the other hand, by repeatedly reminding so that mining operators withdraw instruction reach before, carry out and withdraw standard
It is standby, it greatly avoids because of the sudden personal injury of emergency escape bring, warning effect is good, and practicability is extremely strong.
Fig. 2 is that a kind of mining wireless laser methane alarm system medium-long range provided by Embodiment 2 of the present invention controls host
Structural schematic diagram, as shown in Fig. 2, on the basis of example 1, the long-range control host machine 30 includes:
Data module 301, for the location information of storage region alarm terminal 20 in the form of number and each region
The location information for the laser methane sensor 10 that alarm terminal 20 connects；
Setting module 302, for setting the corresponding methane concentration threshold value in each operating area, in which: each region is corresponding
Methane concentration threshold value set normal, warning and urgent three threshold values, and color is divided to carry out threshold status label；
Receiving module 303, for the remote alarm signal that receiving area alarm terminal 20 issues, the remote alarms letter
It number include: the corresponding methane concentration signal of each laser methane sensor 10；
Analysis module 304, for carrying out threshold to the corresponding methane concentration signal of received each laser methane sensor 10
State of value calculates, and when the methane concentration of operating area is more than preset warning value, sending is executed instruction, and described executes instruction
It include: fail secure command signal and emergency escape instruction；
Execution module 305, for executing executing instruction for the output of analysis module 304.
Fig. 3 is that a kind of mining wireless laser methane alarm system medium-long range that the embodiment of the present invention three provides controls host
Structural schematic diagram, on the basis of example 2, the long-range control host machine 30 further include:
Geography information display module 306, for showing that the position of each laser methane sensor 10 is believed on the map of underground
Breath and threshold status.
Specifically, the warning value are as follows: coal working face, exploiting field air inlet, the methane concentration at exploiting field air return lane three are equal
More than alert thresholds or 2 more than alert thresholds, 1 more than urgent threshold value.
Zone Alerts terminal in a kind of mining wireless laser methane alarm system that Fig. 4 provides for the embodiment of the present invention four
Structural schematic diagram, as shown in figure 4, on the basis of example 1, the Zone Alerts terminal 20 includes: signal receiving circuit
201, it is connected with the signal output end of laser methane sensor 10, for receiving the methane concentration of the output of laser methane sensor 10
Signal；Single-chip microcontroller 202 is connected with wireless communication line 207, receives methane concentration signal, and carry out threshold value comparison, output alarm
Signal；Display circuit 203, input terminal are connected with the output end of single-chip microcontroller 202, for showing methane concentration signal；Voice reporting
Alert circuit 204, input terminal is connected with the output end of single-chip microcontroller 202, for issuing phonetic warning signal；Alarm lamp 205 is flashed,
Its input terminal is connected with the output end of single-chip microcontroller 202, for issuing blinking light alarm signal；Power circuit 206, for being whole
A Zone Alerts terminal 20 provides power supply；Wireless communication line 207 is bi-directionally connected with single-chip microcontroller 202, for reporting for region
Alert terminal 20 and long-range control host machine 30 establish communication connection, and in the present embodiment, the model of the single-chip microcontroller 202 can be
STM32F103ZET6。
The present embodiment carries out circuit with the connection relationship of 10, Zone Alerts terminals 20 of a laser methane sensor and says
Bright, specifically, the model of the single-chip microcontroller 202 can be STM32F103ZET6, and the power circuit 206 is by the 24V of input
Voltage signal is converted to the various power supply signals that each circuit unit in the inside of Zone Alerts terminal 20 uses, including 12V, 5V,
3.3V；Wireless communication line 207 in the present embodiment includes wireless communication module NRF24L01.
The circuit diagram of signal receiving circuit, such as Fig. 5 in the Zone Alerts terminal that Fig. 5 provides for the embodiment of the present invention four
It is shown, the circuit structure of the signal receiving circuit 201 are as follows: including current amplifier U21, controllable source of stable pressure U21, the electric current
It is connected behind one end of the signal negative terminal-IN and connecting resistance R28 of amplifier U21 with one end of resistance R26, the resistance R26's is another
It is connected behind one end and one end of connecting resistance R24 with the signal output end SENSOR of laser methane sensor 10；The resistance R24's
One end of the other end and connecting resistance R25, resistance R21 one end, the other end of the resistance R21 and the power circuit 206
12V power output end A0 is connected, one end of the other end of the resistance R25 and connecting resistance R27, resistance R22 one end, the electricity
It is connected after hindering the other end of R27 and one end of connecting resistance R29 with the signal anode+IN of current amplifier U21, the resistance R22
The other end, the other end of resistance R29, the power supply negative terminal of current amplifier U22 be grounded；The other end of the resistance R28 is simultaneously
It is connected behind one end of connecting resistance R23 with the signal output end OUT of the current amplifier U21, the other end of the resistance R23 is simultaneously
It is connected after connecing the cathode of diode D21 with the output end S1 of the cathode of diode D22, signal receiving circuit 201, the signal connects
The output end S1 for receiving circuit 201 is connected with the pin PC3 of single-chip microcontroller 202, anode and the power circuit 206 of the diode D22
3.3V power output end A1 be connected, the plus earth of the diode D21, the power positive end V+ of the current amplifier U21
It is connected behind one end of shunt-wound capacitance C21 with the 12V power output end A0 of power circuit 24, the other end ground connection of the capacitor C21.
The circuit diagram of display circuit in the Zone Alerts terminal that Fig. 6 provides for the embodiment of the present invention four, such as Fig. 6 institute
Show, the display circuit 203 includes: display drive control device connector P1, the pin 21 of the display drive control device connector P1
~pin 28 is connected with the pin of single-chip microcontroller 202 PF1~pin PF8 respectively, the pin 7 of the display drive control device connector P1
~pin 14 is connected with the pin of single-chip microcontroller 202 PG1~pin PG8 respectively；The pin 1 of the display drive control device connector P1
The pin 2 of ground connection, the display drive control device connector P1 is connected with the 3.3V power output end A1 of power circuit 206, described
Show the pin 4 of drive control device connector P1, pin 5, pin 6, pin 15 respectively with pin PA8, PC9 of single-chip microcontroller 202,
PC8, PF14 are connected, the pin after the 34 series resistor R34 of pin of the display drive control device connector P1 with single-chip microcontroller 202
PF13 is connected, the pin PD10 phase after the 30 series resistor R30 of pin of the display drive control device connector P1 with single-chip microcontroller 202
Even, it is connected after the 29 series resistor R31 of pin of the display drive control device connector P1 with the pin PB13 of single-chip microcontroller 202, institute
It is connected after stating the 33 series resistor R30 of pin of display drive control device connector P1 with the pin PB14 of single-chip microcontroller 202, the display
It is connected after the 31 series resistor R30 of pin of drive control device connector P1 with the pin PB15 of single-chip microcontroller 202；The display driving control
One end of the pin 19 of device connector P1 processed and connecting resistance R35, resistance R36 one end, the other end and single-chip microcontroller of the resistance R35
202 pin PF15 is connected；The other end of the resistance R36 is connected with the 3.3V power output end A1 of power circuit 206.
The circuit diagram of voice alarm circuit, such as Fig. 7 in the Zone Alerts terminal that Fig. 7 provides for the embodiment of the present invention four
Shown, the voice alarm circuit 204 includes: speech chip U41, the input terminal of the speech chip U41 respectively with capacitor C42
One end, one end of capacitor C43, the collector of triode Q42, resistance R43 one end be connected, the other end of the capacitor C42
Respectively with the other end of capacitor C43, the pin VDD of speech chip U41, the other end of resistance R43, one end of resistance R42, resistance
One end of R41, diode D42 cathode, be connected, after the positive series diode D41 of the diode D42 with power circuit
206 5V power output end A2 is connected；The other end of the resistance R42 and the base stage of triode Q42, the current collection of triode Q41
Extremely it is connected, the base stage of the triode Q41 is connected with one end of the other end of resistance R41, resistance R44 respectively, the resistance R44
Other end serial capacitance C41 after be connected with the pin PD14 of single-chip microcontroller 202, the emitter series resistor of the triode Q41
It is connected respectively with the pin GND of the emitter of triode Q42, speech chip U41 after C44, the pin of the speech chip U41
PWM1, PWM2 are connected with loudspeaker BL41.
The circuit diagram that alarm lamp is flashed in the Zone Alerts terminal that Fig. 8 provides for the embodiment of the present invention four, such as Fig. 8 institute
Show, the flashing alarm lamp includes: Light-emitting diode LED 1, Light-emitting diode LED 2, the anode of the Light-emitting diode LED 1
Be connected after series resistor R51 with the pin PA1 of single-chip microcontroller 202, after the cathode series resistance R52 of the Light-emitting diode LED 2 with
The pin PA0 of single-chip microcontroller 202 is connected, and the cathode of the Light-emitting diode LED 1 is connect with the cathode of Light-emitting diode LED 2 to be followed by
Ground.
Fig. 9 is a kind of flow diagram for mining wireless laser methane alarm method that the embodiment of the present invention one provides, such as
Shown in Fig. 9, a kind of mining wireless laser methane alarm method, including the following steps:
S10 installs laser methane sensor at down-hole coal excavation working face, exploiting field air inlet, exploiting field air return lane respectively,
Coal working face installation region alarm terminal is electrically connected laser methane sensor and Zone Alerts terminal；
The methane concentration signal of acquisition is sent to Zone Alerts terminal by S20, laser methane sensor；
S30, Zone Alerts terminal receive and show the methane concentration signal of laser methane sensor output, work as methane concentration
When more than setting value, remote alarm signal, phonetic warning signal and blinking light alarm signal are issued；
S40, the remote alarm signal that long-range control host machine receiving area alarm terminal issues, analyzes the methane of entire underground
Concentration distribution issues fail secure signal to electrical equipment, and sending emergency escape and instructs to Zone Alerts terminal；
Caution sound is withdrawn in S50, the sending of Zone Alerts terminal.
In the present invention, the step S40 is specifically included:
S401, the location information of storage region alarm terminal and the connection of each Zone Alerts terminal in the form of number
Laser methane sensor location information；
S402 sets the corresponding methane concentration threshold value in each operating area, in which: the corresponding methane concentration threshold in each region
Value sets normal, warning and urgent three threshold values, and color is divided to carry out threshold status label；
S403, the remote alarm signal that receiving area alarm terminal issues, the remote alarm signal include: each sharp
The corresponding methane concentration signal of light methane transducer；
S404, methane concentration signal corresponding to received each laser methane sensor, carries out threshold status calculating, when
When the methane concentration of operating area is more than preset warning value, sending is executed instruction, and described executing instruction includes: fail secure
Command signal and emergency escape instruction；
S405 makes electrical equipment fail secure, and the sending of Zone Alerts terminal is made to withdraw caution sound.
After the step S404 further include: show the position letter of each laser methane sensor on the map of underground
Breath and threshold status.
In the step S404, the warning value are as follows: coal working face, exploiting field air inlet, at exploiting field air return lane three
Methane concentration be more than alert thresholds or 2 be more than alert thresholds, 1 be more than urgent threshold value.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of mining wireless laser methane alarm system, comprising: laser methane sensor (10), Zone Alerts terminal (20) and
Long-range control host machine (30), it is characterised in that:
The laser methane sensor (10) is arranged in down-hole coal excavation working face, exploiting field air inlet, exploiting field air return lane to be multiple
Place, for acquiring the methane concentration of above-mentioned operating area；
The Zone Alerts terminal (20), to be multiple, each Zone Alerts terminal (20) is respectively connected with multiple laser first
Alkane sensor (10), for receiving and showing the methane concentration signal of laser methane sensor (10) output, when methane concentration is super
When crossing setting value, remote alarm signal, phonetic warning signal and blinking light alarm signal are issued；
The long-range control host machine (30) connect with Zone Alerts terminal (20) wireless telecommunications, is used for receiving area alarm terminal
(20) remote alarm signal issued, the methane concentration for analyzing entire underground are distributed, sending fail secure signal to electrical equipment,
And issue emergency escape and instruct to Zone Alerts terminal (20), the Zone Alerts terminal (20) withdraws warning for issuing
Sound.
2. a kind of mining wireless laser methane alarm system according to claim 1, it is characterised in that: the long-range control
Host (30) includes:
Data module (301), for the location information of storage region alarm terminal (20) and each region in the form of number
The location information of the laser methane sensor (10) of alarm terminal (20) connection；
Setting module (302), for setting the corresponding methane concentration threshold value in each operating area, in which: each region is corresponding
Methane concentration threshold value sets normal, warning and urgent three threshold values, and color is divided to carry out threshold status label；
Receiving module (303), for the remote alarm signal that receiving area alarm terminal (20) issue, the remote alarms letter
It number include: the corresponding methane concentration signal of each laser methane sensor (10)；
Analysis module (304), for carrying out threshold to the corresponding methane concentration signal of received each laser methane sensor (10)
State of value calculates, and when the methane concentration of operating area is more than preset warning value, sending is executed instruction, and described executes instruction
It include: fail secure command signal and emergency escape instruction；
Execution module (305), for executing executing instruction for analysis module (304) output.
3. a kind of mining wireless laser methane alarm system according to claim 2, it is characterised in that: the long-range control
Host (30) further include:
Geography information display module (306), for showing that the position of each laser methane sensor (10) is believed on the map of underground
Breath and threshold status.
4. a kind of mining wireless laser methane alarm system according to claim 2, it is characterised in that: the warning value
Are as follows: coal working face, exploiting field air inlet, the methane concentration at exploiting field air return lane three are more than alert thresholds or 2 are more than warning
Threshold value, 1 be more than urgent threshold value.
5. a kind of mining wireless laser methane alarm system according to claim 1, it is characterised in that: the Zone Alerts
Terminal (20) includes:
Signal receiving circuit (201) is connected with the signal output end of laser methane sensor (10), passes for receiving laser methane
The methane concentration signal of sensor (10) output；
Single-chip microcontroller (202) is connected with wireless communication line (207), receives methane concentration signal, and carry out threshold value comparison, exports
Alarm signal；
Display circuit (203), input terminal are connected with the output end of single-chip microcontroller (202), for showing methane concentration signal；
Voice alarm circuit (204), input terminal are connected with the output end of single-chip microcontroller (202), for issuing phonetic warning signal；
It flashes alarm lamp (205), input terminal is connected with the output end of single-chip microcontroller (202), for issuing blinking light warning letter
Number；
Power circuit (206), for providing power supply for whole region alarm terminal (20)；
Wireless communication line (207) is bi-directionally connected with single-chip microcontroller (202), for controlling for Zone Alerts terminal (20) with long-range
Host (30) establishes communication connection.
6. a kind of mining wireless laser methane alarm method, it is characterised in that: include the following steps:
S10 installs laser methane sensor at down-hole coal excavation working face, exploiting field air inlet, exploiting field air return lane respectively, is mining
Working face installation region alarm terminal is electrically connected laser methane sensor and Zone Alerts terminal；
The methane concentration signal of acquisition is sent to Zone Alerts terminal by S20, laser methane sensor；
S30, Zone Alerts terminal receives and shows the methane concentration signal of laser methane sensor output, when methane concentration is more than
When setting value, remote alarm signal, phonetic warning signal and blinking light alarm signal are issued；
S40, the remote alarm signal that long-range control host machine receiving area alarm terminal issues, analyzes the methane concentration of entire underground
Distribution issues fail secure signal to electrical equipment, and sending emergency escape and instructs to Zone Alerts terminal；
Caution sound is withdrawn in S50, electrical equipment fail secure, the sending of Zone Alerts terminal.
7. a kind of mining wireless laser methane alarm method according to claim 6, it is characterised in that: the step S40
It specifically includes:
S401, what the location information of storage region alarm terminal and each Zone Alerts terminal connected in the form of number swashs
The location information of light methane transducer；
S402 sets the corresponding methane concentration threshold value in each operating area, in which: the corresponding methane concentration threshold value in each region is equal
Normal, warning and urgent three threshold values are set, and color is divided to carry out threshold status label；
S403, the remote alarm signal that receiving area alarm terminal issues, the remote alarm signal includes: each laser first
The corresponding methane concentration signal of alkane sensor；
S404, methane concentration signal corresponding to received each laser methane sensor, carries out threshold status calculating, works as operation
When the methane concentration in region is more than preset warning value, sending is executed instruction, and described executing instruction includes: fail secure instruction
Signal and emergency escape instruction；
S405 makes electrical equipment fail secure, and the sending of Zone Alerts terminal is made to withdraw caution sound.
8. a kind of mining wireless laser methane alarm method according to claim 6, it is characterised in that: in the step
After S404 further include:
The location information and threshold status of each laser methane sensor are shown on the map of underground.
9. a kind of mining wireless laser methane alarm method according to claim 6, it is characterised in that: the step S404
In, the warning value are as follows: coal working face, exploiting field air inlet, the methane concentration at exploiting field air return lane three are more than warning threshold
Value or 2 be more than alert thresholds, 1 be more than urgent threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385835.8A CN109736892B (en) | 2018-11-20 | 2018-11-20 | Mining wireless laser methane alarm system and method |
Applications Claiming Priority (1)
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