CN109736892B - Mining wireless laser methane alarm system and method - Google Patents
Mining wireless laser methane alarm system and method Download PDFInfo
- Publication number
- CN109736892B CN109736892B CN201811385835.8A CN201811385835A CN109736892B CN 109736892 B CN109736892 B CN 109736892B CN 201811385835 A CN201811385835 A CN 201811385835A CN 109736892 B CN109736892 B CN 109736892B
- Authority
- CN
- China
- Prior art keywords
- alarm
- methane
- area
- signal
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Alarm Systems (AREA)
Abstract
The invention belongs to the technical field of methane alarm, in particular to a mine wireless laser methane alarm system and a mine wireless laser methane alarm method, and solves the technical problems that: the mining wireless laser methane alarm system and method with good alarm effect are provided, and the adopted technical scheme is as follows: the method comprises the following steps: the laser methane sensors are arranged underground and used for collecting the methane concentration of the operation area; the system comprises a plurality of regional alarm terminals, a plurality of laser methane sensors and a plurality of alarm control terminals, wherein each regional alarm terminal is connected with the laser methane sensors and is used for receiving and displaying a methane concentration signal output by the laser methane sensors, and sending a remote alarm signal, a voice alarm signal and a flashing light alarm signal when the methane concentration exceeds a set value; and the remote control host is used for receiving a remote alarm signal sent by the area alarm terminal, analyzing the methane concentration distribution in the whole underground well, sending a power-off locking signal to the electrical equipment, sending an emergency evacuation instruction to the area alarm terminal and enabling the area alarm terminal to send an evacuation alarm sound.
Description
Technical Field
The invention belongs to the technical field of methane alarm, and particularly relates to a mine wireless laser methane alarm system and method.
Background
The main component of gas is methane, gas explosion always has great difficulty which troubles the mining industry, accidents which cause serious casualties frequently occur to cause great loss, and the gas accident is one of the main threats of coal mine safety production
The existing methane alarm can be carried by mining personnel or installed to fixed places such as a coal mine roadway, a goaf and the like, and is widely applied to the field of coal mine safety detection.
However, in the existing methane alarm installed in a fixed place, on one hand, the alarm gives an alarm through a buzzer when the concentration is higher than a set value by setting a methane concentration threshold value, and the alarm sound is easy to ignore and has poor alarm effect because the underground working sound is noisy; on the other hand, the alarm instrument can only monitor the methane concentration of the current area, so that mining personnel in the area cannot comprehensively know the underground methane environment, and whether emergency evacuation is carried out or not is not facilitated to evaluate.
Disclosure of Invention
The invention overcomes the defects of the prior art, and solves the technical problems that: the mining wireless laser methane alarm system and method with good alarm effect are provided.
In order to solve the technical problems, the invention adopts the technical scheme that:
a mining wireless laser methane alarm system comprises: the system comprises a plurality of laser methane sensors, an area alarm terminal and a remote control host, wherein the laser methane sensors are arranged on an underground coal face, a mining area air inlet lane and a mining area air return lane and used for collecting the methane concentration of the operation area; the system comprises a plurality of regional alarm terminals, a plurality of laser methane sensors and a plurality of alarm control terminals, wherein each regional alarm terminal is connected with the laser methane sensors and is used for receiving and displaying a methane concentration signal output by the laser methane sensors, and sending a remote alarm signal, a voice alarm signal and a flashing light alarm signal when the methane concentration exceeds a set value; the remote control host is in wireless communication connection with the area alarm terminal and used for receiving a remote alarm signal sent by the area alarm terminal, analyzing the methane concentration distribution in the whole underground well, sending a power-off locking signal to the electrical equipment and sending an emergency evacuation instruction to the area alarm terminal, and the area alarm terminal is used for sending an evacuation alarm sound.
Preferably, the remote control host includes: the data module is used for storing the position information of the area alarm terminals in a serial number mode and the position information of the laser methane sensor connected with each area alarm terminal; the setting module is used for setting methane concentration threshold values corresponding to all the operation areas, wherein: setting three thresholds of normal, warning and emergency for the methane concentration threshold corresponding to each area, and marking the threshold state according to colors; the receiving module is used for receiving a remote alarm signal sent by the area alarm terminal, and the remote alarm signal comprises: a methane concentration signal corresponding to each laser methane sensor; the analysis module is used for calculating the threshold state of the received methane concentration signal corresponding to each laser methane sensor, and sending out an execution instruction when the methane concentration of the operation area exceeds a preset warning value, wherein the execution instruction comprises: a power-off locking command signal and an emergency evacuation command; and the execution module is used for executing the execution instruction output by the analysis module.
Preferably, the remote control host further comprises: and the geographic information display module is used for displaying the position information of each laser methane sensor and the threshold state on the underground map.
Preferably, the alert value is: the methane concentrations of the coal face, the mining area air inlet roadway and the mining area air return roadway all exceed the warning threshold, or 2 items exceed the warning threshold, and 1 item exceeds the emergency threshold.
Preferably, the area alarm terminal includes: the signal receiving circuit is connected with the signal output end of the laser methane sensor and used for receiving a methane concentration signal output by the laser methane sensor; the single chip microcomputer is connected with the wireless communication circuit, receives the methane concentration signal, compares a threshold value and outputs an alarm signal; the input end of the display circuit is connected with the output end of the singlechip and is used for displaying the methane concentration signal; the input end of the voice alarm circuit is connected with the output end of the singlechip and is used for sending out a voice alarm signal; the input end of the flashing alarm lamp is connected with the output end of the singlechip and is used for sending out a flashing light warning signal; the power supply circuit is used for supplying power to the alarm terminal in the whole area; and the wireless communication circuit is in bidirectional connection with the singlechip and is used for establishing communication connection between the area alarm terminal and the remote control host.
Correspondingly, the mining wireless laser methane alarm method comprises the following steps: s10, respectively installing laser methane sensors at the underground coal face, the mining area air inlet lane and the mining area air return lane, and installing an area alarm terminal on the coal face to electrically connect the laser methane sensors with the area alarm terminal; s20, the laser methane sensor sends the acquired methane concentration signal to an area alarm terminal; s30, the regional alarm terminal receives and displays the methane concentration signal output by the laser methane sensor, and when the methane concentration exceeds a set value, the regional alarm terminal sends a remote alarm signal, a voice alarm signal and a flashing light alarm signal; s40, the remote control host receives a remote alarm signal sent by the area alarm terminal, analyzes the methane concentration distribution in the whole underground, sends a power-off locking signal to the electrical equipment and sends an emergency evacuation instruction to the area alarm terminal; and S50, the electrical equipment is powered off and locked, and the area alarm terminal sends an evacuation alarm sound.
Preferably, the step S40 specifically includes: s401, storing the position information of the area alarm terminals and the position information of the laser methane sensor connected with each area alarm terminal in a numbering mode; s402, setting methane concentration threshold values corresponding to all the operation areas, wherein: setting three thresholds of normal, warning and emergency for the methane concentration threshold corresponding to each area, and marking the threshold state according to colors; s403, receiving a remote alarm signal sent by the area alarm terminal, wherein the remote alarm signal comprises: a methane concentration signal corresponding to each laser methane sensor; s404, calculating a threshold state of the received methane concentration signal corresponding to each laser methane sensor, and sending out an execution instruction when the methane concentration of the working area exceeds a preset warning value, wherein the execution instruction comprises: a power-off locking command signal and an emergency evacuation command; s405, the electrical equipment is powered off and locked, and the area alarm terminal sends an evacuation alarm sound.
Preferably, after the step S404, the method further includes: and displaying the position information of each laser methane sensor and the threshold state on the underground map.
Preferably, in step S404, the alert value is: the methane concentrations of the coal face, the mining area air inlet roadway and the mining area air return roadway all exceed the warning threshold, or 2 items exceed the warning threshold, and 1 item exceeds the emergency threshold.
Compared with the prior art, the invention has the following beneficial effects:
the system can monitor the methane concentration of the working area in real time through the laser methane sensors arranged on the underground coal face, the mining area air inlet lane and the mining area air return lane, when the methane concentration exceeds a set value, the area alarm terminal sends a remote alarm signal, a voice alarm signal and a flashing light alarm signal, the remote control host receives the remote alarm signal and then analyzes the methane concentration distribution of the whole underground, sends a power-off locking signal to electrical equipment and sends an emergency evacuation instruction to the area alarm terminal, so that the area alarm terminal is used for sending an evacuation alarm sound; according to the invention, when the methane concentration exceeds a set value, the regional alarm terminal sends a voice alarm signal and a flashing light alarm signal to remind mining personnel to observe the methane concentration change, and when the regional alarm terminal receives and sends an evacuation alarm sound, the evacuation is carried out in order;
according to the invention, on one hand, the mining personnel can be reminded for many times, so that invalid reminding caused by environmental noise is avoided, and on the other hand, the mining personnel can be prepared for evacuation through the reminding for many times before an evacuation instruction arrives, so that sudden personnel injury caused by emergency evacuation is greatly avoided, the alarm effect is good, and the practicability is strong.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings;
fig. 1 is a schematic structural diagram of a mining wireless laser methane alarm system according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a remote control host in a wireless laser methane alarm system for mining according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a remote control host in a wireless laser methane alarm system for mining according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an area alarm terminal in a wireless laser methane alarm system for mining according to a fourth embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a signal receiving circuit in an area alarm terminal according to a fourth embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a display circuit in an area alarm terminal according to a fourth embodiment of the present invention;
fig. 7 is a circuit schematic diagram of a voice alarm circuit in an area alarm terminal according to a fourth embodiment of the present invention;
fig. 8 is a schematic circuit diagram of a flashing alarm lamp in the area alarm terminal according to the fourth embodiment of the present invention;
fig. 9 is a schematic flow chart of a mining wireless laser methane alarm method according to an embodiment of the present invention;
in the figure: 10 is a laser methane sensor, 20 is an area alarm terminal, and 30 is a remote control host;
201 is a signal receiving circuit, 202 is a singlechip, 203 is a display circuit, 204 is a voice alarm circuit, 205 is a flashing alarm lamp, 206 is a power circuit, and 207 is a wireless communication circuit;
301 is a data module, 302 is a setting module, 303 is a receiving module, 304 is an analyzing module, 305 is an executing module, and 306 is a geographic information displaying module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a mining wireless laser methane alarm system according to an embodiment of the present invention, and as shown in fig. 1, the mining wireless laser methane alarm system includes: the system comprises a plurality of laser methane sensors 10, an area alarm terminal 20 and a remote control host 30, wherein the laser methane sensors 10 are arranged at underground coal mining working faces, mining area air inlet lanes and mining area air return lanes and used for collecting the methane concentration of the working area; the number of the area alarm terminals 20 is multiple, each area alarm terminal 20 is connected with a plurality of laser methane sensors 10 and is used for receiving and displaying methane concentration signals output by the laser methane sensors 10, and when the methane concentration exceeds a set value, a remote alarm signal, a voice alarm signal and a flashing light alarm signal are sent out; the remote control host 30 is connected with the area alarm terminal 20 in a wireless communication mode and used for receiving remote alarm signals sent by the area alarm terminal 20, analyzing the methane concentration distribution in the whole underground well, sending power-off locking signals to electrical equipment and sending emergency evacuation instructions to the area alarm terminal 20, and the area alarm terminal 20 is used for sending evacuation alarm sounds.
According to the invention, when the methane concentration exceeds a set value, the regional alarm terminal 20 sends a voice warning signal and a flashing light warning signal to remind mining personnel to observe the change of the methane concentration, and when the regional alarm terminal 20 receives and sends an evacuation warning sound, evacuation is carried out in order; according to the invention, on one hand, the mining personnel can be reminded for many times, so that invalid reminding caused by environmental noise is avoided, and on the other hand, the mining personnel can be prepared for evacuation through the reminding for many times before an evacuation instruction arrives, so that sudden personnel injury caused by emergency evacuation is greatly avoided, the alarm effect is good, and the practicability is strong.
Fig. 2 is a schematic structural diagram of a remote control host in a wireless laser methane alarm system for mining according to a second embodiment of the present invention, and as shown in fig. 2, on the basis of the first embodiment, the remote control host 30 includes:
the data module 301 is used for storing the position information of the area alarm terminals 20 in a serial number form and the position information of the laser methane sensor 10 connected with each area alarm terminal 20;
a setting module 302, configured to set a methane concentration threshold corresponding to each operation area, where: setting three thresholds of normal, warning and emergency for the methane concentration threshold corresponding to each area, and marking the threshold state according to colors;
a receiving module 303, configured to receive a remote alarm signal sent by the area alarm terminal 20, where the remote alarm signal includes: a methane concentration signal corresponding to each laser methane sensor 10;
an analysis module 304, configured to perform threshold state calculation on the received methane concentration signal corresponding to each laser methane sensor 10, and issue an execution instruction when the methane concentration in the work area exceeds a preset warning value, where the execution instruction includes: a power-off locking command signal and an emergency evacuation command;
and the execution module 305 is configured to execute the execution instruction output by the analysis module 304.
Fig. 3 is a schematic structural diagram of a remote control host in a wireless laser methane alarm system for mining according to a third embodiment of the present invention, where on the basis of the second embodiment, the remote control host 30 further includes:
and a geographic information display module 306 for displaying the position information of each laser methane sensor 10 and the threshold state on the downhole map.
Specifically, the alert value is: the methane concentrations of the coal face, the mining area air inlet roadway and the mining area air return roadway all exceed the warning threshold, or 2 items exceed the warning threshold, and 1 item exceeds the emergency threshold.
Fig. 4 is a schematic structural diagram of an area alarm terminal in a mining wireless laser methane alarm system according to a fourth embodiment of the present invention, and as shown in fig. 4, on the basis of the first embodiment, the area alarm terminal 20 includes: the signal receiving circuit 201 is connected with the signal output end of the laser methane sensor 10 and is used for receiving a methane concentration signal output by the laser methane sensor 10; the singlechip 202 is connected with the wireless communication circuit 207, receives the methane concentration signal, compares the threshold value and outputs an alarm signal; the input end of the display circuit 203 is connected with the output end of the singlechip 202 and is used for displaying a methane concentration signal; the input end of the voice alarm circuit 204 is connected with the output end of the singlechip 202 and is used for sending out a voice warning signal; a flashing alarm lamp 205, the input end of which is connected with the output end of the singlechip 202 and is used for sending out a flashing light warning signal; a power circuit 206 for supplying power to the entire area alarm terminal 20; and the wireless communication circuit 207 is bidirectionally connected with the single chip microcomputer 202 and is used for establishing communication connection between the area alarm terminal 20 and the remote control host 30, and in the embodiment, the model of the single chip microcomputer 202 can be STM32F103ZET 6.
In the present embodiment, a circuit is described in a connection relationship between a laser methane sensor 10 and an area alarm terminal 20, specifically, the type of the single chip microcomputer 202 may be STM32F103ZET6, and the power supply circuit 206 converts an input 24V voltage signal into various power supply signals used by each circuit unit inside the area alarm terminal 20, including 12V, 5V, and 3.3V; the wireless communication circuit 207 in this embodiment includes a wireless communication module NRF24L 01.
Fig. 5 is a schematic circuit diagram of a signal receiving circuit in an area alarm terminal according to a fourth embodiment of the present invention, and as shown in fig. 5, a circuit structure of the signal receiving circuit 201 is: the laser methane SENSOR comprises a current amplifier U21 and a controllable voltage-stabilizing source U21, wherein a signal negative terminal-IN of the current amplifier U21 is connected with one end of a resistor R28 IN parallel and then connected with one end of a resistor R26, and the other end of a resistor R26 is connected with one end of a resistor R24 IN parallel and then connected with a signal output terminal SENSOR of the laser methane SENSOR 10; the other end of the resistor R24 is connected IN parallel with one end of a resistor R25 and one end of a resistor R21, the other end of the resistor R21 is connected with a 12V power output end A0 of the power circuit 206, the other end of the resistor R25 is connected IN parallel with one end of a resistor R27 and one end of a resistor R22, the other end of the resistor R27 is connected IN parallel with one end of a resistor R29 and then connected with the signal positive end + IN of the current amplifier U21, and the other end of the resistor R22, the other end of the resistor R29 and the power negative end of the current amplifier U22 are all grounded; the other end of the resistor R28 is connected with one end of a resistor R23 in parallel and then connected with a signal output end OUT of the current amplifier U21, the other end of the resistor R23 is connected with the cathode of a diode D21 in parallel and then connected with the cathode of a diode D22 and an output end S1 of the signal receiving circuit 201, the output end S1 of the signal receiving circuit 201 is connected with a pin PC3 of the single chip microcomputer 202, the anode of the diode D22 is connected with a 3.3V power output end A1 of the power circuit 206, the anode of the diode D21 is grounded, the power supply positive end V + of the current amplifier U21 is connected with one end of a capacitor C21 in parallel and then connected with a 12V power output end A0 of the power circuit 24, and the other end of the capacitor C21 is.
Fig. 6 is a schematic circuit diagram of a display circuit in an area alarm terminal according to a fourth embodiment of the present invention, and as shown in fig. 6, the display circuit 203 includes: a display drive controller connector P1, pins 21 to 28 of the display drive controller connector P1 are respectively connected with pins PF1 to PF8 of the single chip microcomputer 202, and pins 7 to 14 of the display drive controller connector P1 are respectively connected with pins PG1 to PG8 of the single chip microcomputer 202; pin 1 of the display driver controller connector P1 is connected to ground, pin 2 of the display driver controller connector P1 is connected to the 3.3V power output a1 of the power circuit 206, the pin 4, the pin 5, the pin 6 and the pin 15 of the display driving controller connector P1 are respectively connected with the pin PA8, the PC9, the PC8 and the PF14 of the single chip microcomputer 202, a pin 34 of the display driving controller connector P1 is connected with a resistor R34 in series and then is connected with a pin PF13 of the singlechip 202, the pin 30 of the display driving controller connector P1 is connected in series with the resistor R30 and then is connected with the pin PD10 of the singlechip 202, a pin 29 of the display drive controller connector P1 is connected in series with a resistor R31 and then is connected with a pin PB13 of the singlechip 202, a pin 33 of the display driving controller connector P1 is connected with a resistor R30 in series and then is connected with a pin PB14 of the singlechip 202, a pin 31 of the display drive controller connector P1 is connected with a resistor R30 in series and then is connected with a pin PB15 of the singlechip 202; the pin 19 of the display driving controller connector P1 is connected with one end of a resistor R35 and one end of a resistor R36 in parallel, and the other end of the resistor R35 is connected with a pin PF15 of the single chip microcomputer 202; the other end of the resistor R36 is connected to the 3.3V power supply output terminal a1 of the power supply circuit 206.
Fig. 7 is a circuit schematic diagram of a voice alarm circuit in an area alarm terminal according to a fourth embodiment of the present invention, and as shown in fig. 7, the voice alarm circuit 204 includes: an input end of the voice chip U41 is connected to one end of a capacitor C42, one end of a capacitor C43, a collector of the triode Q42, and one end of a resistor R43, another end of the capacitor C42 is connected to another end of the capacitor C43, a pin VDD of the voice chip U41, another end of the resistor R43, one end of a resistor R42, one end of the resistor R41, and a cathode of the diode D42, and an anode of the diode D42 is connected to the 5V power output end a2 of the power circuit 206 after being connected to the diode D41 in series; the other end of the resistor R42 is connected with the base of a triode Q42 and the collector of a triode Q41, the base of the triode Q41 is connected with the other end of a resistor R41 and one end of a resistor R44 respectively, the other end of the resistor R44 is connected with a capacitor C41 in series and then connected with a pin PD14 of the single chip 202, the emitter of the triode Q41 is connected with a resistor C44 in series and then connected with the emitter of the triode Q42 and a pin GND of the voice chip U41 respectively, and the pins PWM1 and PWM2 of the voice chip U41 are connected with a horn BL 41.
Fig. 8 is a schematic circuit diagram of a flashing alarm lamp in an area alarm terminal according to a fourth embodiment of the present invention, where as shown in fig. 8, the flashing alarm lamp includes: the LED light source comprises a light emitting diode LED1 and a light emitting diode LED2, wherein the anode of the light emitting diode LED1 is connected with a pin PA1 of the single chip microcomputer 202 after being connected with a resistor R51 in series, the anode of the light emitting diode LED2 is connected with a pin PA0 of the single chip microcomputer 202 after being connected with a resistor R52 in series, and the cathode of the light emitting diode LED1 is connected with the cathode of the light emitting diode LED2 and then grounded.
Fig. 9 is a schematic flow chart of a mining wireless laser methane alarm method according to an embodiment of the present invention, and as shown in fig. 9, the mining wireless laser methane alarm method includes the following steps:
s10, respectively installing laser methane sensors at the underground coal face, the mining area air inlet lane and the mining area air return lane, and installing an area alarm terminal on the coal face to electrically connect the laser methane sensors with the area alarm terminal;
s20, the laser methane sensor sends the acquired methane concentration signal to an area alarm terminal;
s30, the regional alarm terminal receives and displays the methane concentration signal output by the laser methane sensor, and when the methane concentration exceeds a set value, the regional alarm terminal sends a remote alarm signal, a voice alarm signal and a flashing light alarm signal;
s40, the remote control host receives a remote alarm signal sent by the area alarm terminal, analyzes the methane concentration distribution in the whole underground, sends a power-off locking signal to the electrical equipment and sends an emergency evacuation instruction to the area alarm terminal;
and S50, the area alarm terminal sends an evacuation alarm sound.
In the present invention, the step S40 specifically includes:
s401, storing the position information of the area alarm terminals and the position information of the laser methane sensor connected with each area alarm terminal in a numbering mode;
s402, setting methane concentration threshold values corresponding to all the operation areas, wherein: setting three thresholds of normal, warning and emergency for the methane concentration threshold corresponding to each area, and marking the threshold state according to colors;
s403, receiving a remote alarm signal sent by the area alarm terminal, wherein the remote alarm signal comprises: a methane concentration signal corresponding to each laser methane sensor;
s404, calculating a threshold state of the received methane concentration signal corresponding to each laser methane sensor, and sending out an execution instruction when the methane concentration of the working area exceeds a preset warning value, wherein the execution instruction comprises: a power-off locking command signal and an emergency evacuation command;
s405, the electrical equipment is powered off and locked, and the area alarm terminal sends an evacuation alarm sound.
After the step S404, the method further includes: and displaying the position information of each laser methane sensor and the threshold state on the underground map.
In step S404, the alert value is: the methane concentrations of the coal face, the mining area air inlet roadway and the mining area air return roadway all exceed the warning threshold, or 2 items exceed the warning threshold, and 1 item exceeds the emergency threshold.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A mining wireless laser methane alarm system comprises: laser methane sensor (10), regional warning terminal (20) and remote control host computer (30), its characterized in that:
the laser methane sensors (10) are multiple, are arranged on the underground coal mining working face, the mining area air inlet lane and the mining area air return lane and are used for collecting the methane concentration of the working area;
the system comprises a plurality of regional alarm terminals (20), wherein each regional alarm terminal (20) is connected with a plurality of laser methane sensors (10) and is used for receiving and displaying methane concentration signals output by the laser methane sensors (10), and when the methane concentration exceeds a set value, a remote alarm signal, a voice alarm signal and a flashing light alarm signal are sent out;
the remote control host (30) is in wireless communication connection with the area alarm terminal (20) and is used for receiving a remote alarm signal sent by the area alarm terminal (20), analyzing the methane concentration distribution in the whole underground, sending a power-off locking signal to electrical equipment and sending an emergency evacuation instruction to the area alarm terminal (20), and the area alarm terminal (20) is used for sending an evacuation alarm sound;
the remote control host (30) comprises:
the data module (301) is used for storing the position information of the area alarm terminals (20) in a form of numbers and the position information of the laser methane sensor (10) connected with each area alarm terminal (20);
a setting module (302) for setting a methane concentration threshold corresponding to each operation area, wherein: setting three thresholds of normal, warning and emergency for the methane concentration threshold corresponding to each area, and marking the threshold state according to colors;
a receiving module (303) for receiving a remote alarm signal sent by an area alarm terminal (20), wherein the remote alarm signal comprises: a methane concentration signal corresponding to each laser methane sensor (10);
the analysis module (304) is used for carrying out threshold state calculation on the received methane concentration signal corresponding to each laser methane sensor (10), and sending out an execution instruction when the methane concentration of the work area exceeds a preset alarm value, wherein the execution instruction comprises: a power-off locking command signal and an emergency evacuation command;
the warning value is as follows: the methane concentrations at three positions of the coal face, the mining area air inlet roadway and the mining area air return roadway all exceed a warning threshold, or 2 items exceed the warning threshold and 1 item exceeds an emergency threshold;
and the execution module (305) is used for executing the execution instruction output by the analysis module (304).
2. The mining wireless laser methane alarm system according to claim 1, characterized in that: the remote control host (30) further comprises:
and the geographic information display module (306) is used for displaying the position information of each laser methane sensor (10) and the threshold state on the underground map.
3. The mining wireless laser methane alarm system according to claim 1, characterized in that: the area alarm terminal (20) includes:
the signal receiving circuit (201) is connected with the signal output end of the laser methane sensor (10) and is used for receiving a methane concentration signal output by the laser methane sensor (10);
the single chip microcomputer (202) is connected with the wireless communication circuit (207), receives the methane concentration signal, compares a threshold value and outputs an alarm signal;
the input end of the display circuit (203) is connected with the output end of the singlechip (202) and is used for displaying the methane concentration signal;
the input end of the voice alarm circuit (204) is connected with the output end of the singlechip (202) and is used for sending out a voice warning signal;
the input end of the flashing alarm lamp (205) is connected with the output end of the singlechip (202) and is used for sending out a flashing light warning signal;
a power circuit (206) for supplying power to the entire area alarm terminal (20);
and the wireless communication circuit (207) is bidirectionally connected with the singlechip (202) and is used for establishing communication connection between the area alarm terminal (20) and the remote control host (30).
4. A mining wireless laser methane alarm method is characterized in that: comprises the following steps:
s10, respectively installing laser methane sensors at the underground coal face, the mining area air inlet lane and the mining area air return lane, and installing an area alarm terminal on the coal face to electrically connect the laser methane sensors with the area alarm terminal;
s20, the laser methane sensor sends the acquired methane concentration signal to an area alarm terminal;
s30, the regional alarm terminal receives and displays the methane concentration signal output by the laser methane sensor, and when the methane concentration exceeds a set value, the regional alarm terminal sends a remote alarm signal, a voice alarm signal and a flashing light alarm signal;
s40, the remote control host receives a remote alarm signal sent by the area alarm terminal, analyzes the methane concentration distribution in the whole underground, sends a power-off locking signal to the electrical equipment and sends an emergency evacuation instruction to the area alarm terminal;
s50, the electrical equipment is powered off and locked, and the area alarm terminal sends an evacuation alarm sound;
the step S40 specifically includes:
s401, storing the position information of the area alarm terminals and the position information of the laser methane sensor connected with each area alarm terminal in a numbering mode;
s402, setting methane concentration threshold values corresponding to all the operation areas, wherein: setting three thresholds of normal, warning and emergency for the methane concentration threshold corresponding to each area, and marking the threshold state according to colors;
s403, receiving a remote alarm signal sent by the area alarm terminal, wherein the remote alarm signal comprises: a methane concentration signal corresponding to each laser methane sensor;
s404, calculating a threshold state of the received methane concentration signal corresponding to each laser methane sensor, and sending out an execution instruction when the methane concentration of the working area exceeds a preset warning value, wherein the execution instruction comprises: a power-off locking command signal and an emergency evacuation command; the warning value is as follows: the methane concentrations at three positions of the coal face, the mining area air inlet roadway and the mining area air return roadway all exceed the warning threshold, or 2 items exceed the warning threshold, and 1 item exceeds the emergency threshold
S405, the electrical equipment is powered off and locked, and the area alarm terminal sends an evacuation alarm sound.
5. The mining wireless laser methane alarm method according to claim 4, characterized in that: after the step S404, the method further includes:
and displaying the position information of each laser methane sensor and the threshold state on the underground map.
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)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109736892A CN109736892A (en) | 2019-05-10 |
| CN109736892B true CN109736892B (en) | 2020-08-11 |
Family
ID=66356986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811385835.8A Active CN109736892B (en) | 2018-11-20 | 2018-11-20 | Mining wireless laser methane alarm system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109736892B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630186A (en) * | 2020-11-24 | 2021-04-09 | 海洋王照明科技股份有限公司 | Mine gas monitoring system and method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201908689U (en) * | 2010-10-26 | 2011-07-27 | 北京鑫源九鼎科技有限公司 | Linkage warning system for mine gas accident |
| CN202194687U (en) * | 2011-03-02 | 2012-04-18 | 江苏中煤华融自动化科技有限公司 | Methane alarm device for mine |
| CN104295312A (en) * | 2014-08-20 | 2015-01-21 | 四川天微电子有限责任公司 | Coal mine explosion protection system |
| CN104405443A (en) * | 2014-10-16 | 2015-03-11 | 中国矿业大学(北京) | Coal and gas outburst alarming method of coal face |
| CN205638561U (en) * | 2016-03-14 | 2016-10-12 | 董晓华 | System for monitoring analysis |
| CN206054004U (en) * | 2016-09-30 | 2017-03-29 | 周地全 | A kind of fire damp safety monitoring system |
| CN106567737A (en) * | 2016-10-20 | 2017-04-19 | 辽宁工程技术大学 | Early warning system and method of coal and gas outburst in coal mining working face based on infrared thermal images |
| CN107038847A (en) * | 2017-05-15 | 2017-08-11 | 天地（常州）自动化股份有限公司 | A kind of Underwell stepped alarm method, equipment and system |
| CN107939448A (en) * | 2017-12-29 | 2018-04-20 | 徐州江煤科技有限公司 | Coal mine safety monitoring system |
| CN108167022A (en) * | 2017-12-25 | 2018-06-15 | 天地（常州）自动化股份有限公司 | A kind of gas monitoring and data comparison method based on coal mine safety monitoring system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110140913A1 (en) * | 2008-09-29 | 2011-06-16 | John Matthew Montenero | Multifunctional telemetry alert safety system (MTASS) |
-
2018
- 2018-11-20 CN CN201811385835.8A patent/CN109736892B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201908689U (en) * | 2010-10-26 | 2011-07-27 | 北京鑫源九鼎科技有限公司 | Linkage warning system for mine gas accident |
| CN202194687U (en) * | 2011-03-02 | 2012-04-18 | 江苏中煤华融自动化科技有限公司 | Methane alarm device for mine |
| CN104295312A (en) * | 2014-08-20 | 2015-01-21 | 四川天微电子有限责任公司 | Coal mine explosion protection system |
| CN104405443A (en) * | 2014-10-16 | 2015-03-11 | 中国矿业大学(北京) | Coal and gas outburst alarming method of coal face |
| CN205638561U (en) * | 2016-03-14 | 2016-10-12 | 董晓华 | System for monitoring analysis |
| CN206054004U (en) * | 2016-09-30 | 2017-03-29 | 周地全 | A kind of fire damp safety monitoring system |
| CN106567737A (en) * | 2016-10-20 | 2017-04-19 | 辽宁工程技术大学 | Early warning system and method of coal and gas outburst in coal mining working face based on infrared thermal images |
| CN107038847A (en) * | 2017-05-15 | 2017-08-11 | 天地（常州）自动化股份有限公司 | A kind of Underwell stepped alarm method, equipment and system |
| CN108167022A (en) * | 2017-12-25 | 2018-06-15 | 天地（常州）自动化股份有限公司 | A kind of gas monitoring and data comparison method based on coal mine safety monitoring system |
| CN107939448A (en) * | 2017-12-29 | 2018-04-20 | 徐州江煤科技有限公司 | Coal mine safety monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109736892A (en) | 2019-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109736892B (en) | Mining wireless laser methane alarm system and method | |
| CN106716277A (en) | Throttle control signal processing method, electronic speed regulator, controller and mobile platform | |
| CN107728563B (en) | Filament alarm detection device and method based on PLC technology | |
| TWI583258B (en) | Fault detection apparatus and fault detection method | |
| CN203401886U (en) | Vehicle tire pressure monitoring system and vehicle comprising same | |
| CN111055793A (en) | Parameter detection alarm method and system for explosion-proof automobile | |
| CN101051409A (en) | Embedded gas outburst alarm and working method thereof | |
| CN205722436U (en) | Tape jam detection and the signal lights reported to the police | |
| CN208877810U (en) | Fire fighting hydraulic pressure real-time monitoring system | |
| CN105451393A (en) | Light source controller for simultaneously controlling multiple cameras and multiple light sources | |
| CN103072527A (en) | Compatible display device for tire pressure monitoring and parking assisting | |
| CN206003447U (en) | Lever nameplate for distribution circuit | |
| CN104427729A (en) | Automobile instrument alarm lamp fault processing method and system | |
| CN204296933U (en) | For the alarming device of bicycle | |
| CN104703332A (en) | Intelligent firefighting emergency lighting system | |
| CN204082220U (en) | A kind of miner's attitude monitoring device and system thereof | |
| CN208515596U (en) | A kind of city rail vehicle guest room lighting control system | |
| US20200096627A1 (en) | Proximity detection system for an industrial machine including externally mounted indicators | |
| CN202046428U (en) | Ship navigation signal lamp control system | |
| CN202424940U (en) | Multi-channel television signal monitoring and alarming device | |
| CN208232929U (en) | Failure alarm device for automobile lighting signal lamp | |
| CN112363894A (en) | Domestic computer fault alarm system | |
| CN212519523U (en) | Intelligent light-operated and address code-searching alarm mining lamp lighting system | |
| CN203093889U (en) | Display device integrating tire pressure monitoring and parking assistance | |
| CN205750493U (en) | A kind of lathe prior-warning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |