CN217872934U - Coal mine underground environment alarm - Google Patents
Coal mine underground environment alarm Download PDFInfo
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- CN217872934U CN217872934U CN202222247890.9U CN202222247890U CN217872934U CN 217872934 U CN217872934 U CN 217872934U CN 202222247890 U CN202222247890 U CN 202222247890U CN 217872934 U CN217872934 U CN 217872934U
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- 239000003245 coal Substances 0.000 title claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 59
- 238000012545 processing Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 31
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 25
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 25
- 239000001301 oxygen Substances 0.000 claims abstract description 25
- 238000005065 mining Methods 0.000 claims abstract description 10
- 230000007613 environmental effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000003750 conditioning effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 12
- 238000012544 monitoring process Methods 0.000 description 10
- 230000008054 signal transmission Effects 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model relates to a coal mine underground environment alarm, which consists of a detection terminal machine and a display terminal machine; the detection terminal machine is internally provided with a processing module, a wireless communication module sending end, a battery, a carbon monoxide sensor, an oxygen sensor and a temperature sensor; the carbon monoxide digital sensor and the oxygen digital sensor are connected with the input end of the processing module; the output end of the processing module is connected with the sending end of the wireless communication module; the detection terminal machine is arranged in an underground coal mining goaf; the display terminal machine is internally provided with a wireless communication module receiving end, a serial port display screen and a battery pack, wherein the wireless communication module receiving end is in wireless communication with the wireless communication module sending end, and the wireless communication module receiving end is connected with the serial port display screen; the display terminal machine is arranged in a safe working area outside the underground coal mining goaf, the difference between the power supply voltage and the working voltage of an application device is small, and the circuit conditioning is easy; the environmental data is obtained outside the construction area, so that the method is convenient, quick and safe; wireless communication, the signal is difficult for interrupting.
Description
Technical Field
The utility model relates to an environmental monitoring equipment in the pit specifically is a colliery is environmental alarm in pit.
Background
With the development of the coal mining industry in China and the improvement of the underground safety awareness of people, more and more attention is paid to monitoring various data in the coal mining process of a mine, and various underground variables such as oxygen concentration, carbon monoxide concentration and underground temperature value reflect the safety of the underground environment and are key indexes of monitoring.
Originally portable detection devices often only detected a single signal, and if multiple signals were to be detected, multiple devices would need to be carried. To facilitate the detection, those skilled in the art have developed a downhole data detection device integrating a plurality of detectors, and the patent numbers are: CN202021420136.5, publication No. CN213275568U, granted publication No. 20210525, which discloses an intelligent coal mine data acquisition monitoring system, comprising: the monitoring system comprises a display screen, a main control module central processing unit, a data storage module, a monitoring camera, an alarm module, a power supply module, a slave control module central processing unit, a signal conversion chip, an RS485 chip and a sensor module; the slave control module central processing unit is connected with various sensors and is connected with the master control module central processing unit through a CAN bus, and the master control module central processing unit is used for processing data transmitted from the control module central processing unit, displaying the data according to certain setting, alarming, processing and the like.
At present, a large number of coal mines still use old fixed detection equipment underground, sensors adopt 4-20ma weak current output sensors, the power supply of the equipment adopts cables for power supply, the information transmission adopts optical fiber communication, and uncontrollable factors are more.
In the existing underground detection equipment, sensing data transmission mainly depends on optical cables, optical fibers are mostly adopted for signal transmission, and the optical cables need to be laid along a well; the detection equipment generally adopts an engineering power supply for power supply, generally needs to be wired, is greatly restricted by a field in the wiring process, and is difficult to realize remote monitoring. And when the goaf is collapsed, the optical cable or the electric wire is easy to break; the uncontrollable factors are more, and the maintenance difficulty of equipment and cables is high.
The output of a general sensor is 4-20ma weak current, engineering power supply is 220V, a 220V power supply needs to be converted into a voltage signal acceptable by a 0-5V singlechip, the conditioning difficulty is high, and the output has deviation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the problem that solves: in the prior art, the detection end of the underground detection equipment transmits data to the server through a cable and also supplies power through the cable, so that a line is easy to be broken, particularly, the line is easy to be damaged when an accident happens, and signal transmission cannot be kept in the accident; the communication distance is limited; wiring is inconvenient; the attenuation of long-distance wiring signals is large, and the conditioning difficulty is large.
The utility model provides a problem, the technical scheme who adopts is:
the coal mine underground environment alarm comprises a temperature sensor, a carbon monoxide digital sensor and an oxygen digital sensor, and consists of a detection terminal and a display terminal;
the detection terminal machine is internally provided with a processing module, a wireless communication module sending end, a battery, the carbon monoxide digital sensor and an oxygen digital sensor; the temperature sensor is a built-in temperature sensor of the processing module; the carbon monoxide digital sensor and the oxygen digital sensor are connected with the input end of the processing module; the output end of the processing module is connected with the sending end of the wireless communication module; the battery is electrically connected with the processing module, the carbon monoxide digital sensor, the oxygen digital sensor and the sending end of the wireless communication module; the detection terminal machine is arranged in an underground coal mining goaf;
the display terminal machine is internally provided with a wireless communication module receiving end, a serial port display screen and a battery pack, wherein the wireless communication module receiving end is in wireless communication with the wireless communication module sending end, and the wireless communication module receiving end is connected with the serial port display screen; the battery pack is electrically connected with the receiving end of the wireless communication module and the serial port display screen; the display terminal machine is arranged in a safe working area outside the underground coal mining goaf.
Compared with the prior art, the invention adopting the technical scheme has the beneficial effects that:
(1) the utility model discloses separate data display end and detection end, detection end sets up in the collecting space area that the safe risk is higher, and the display end is established in safe work area, and the staff can read the data in the collecting space area in the safe area, judges whether safe in construction area, improves workman's security, reduces the personnel's quantity that gets into the collecting space area; (2) the utility model adopts the wireless radio frequency module to replace a cable to realize internal and external communication, adopts a battery to replace a circuit to supply power, does not need to lay a line, solves the problem that the line is easy to be damaged, and can still keep the transmission of detection signals especially after an accident happens underground, so that external personnel can know the condition of an accident area; (3) battery supply voltage is close with sensor operating voltage, the utility model discloses a battery powered compares and easily the circuit is taked care of in current engineering mains operated.
Preferably, the present invention further provides:
a micro control processor is installed on the processing module, and the model of the micro control processor is STM32F103C8T6; the carbon monoxide transmission digital sensor and the oxygen digital sensor are connected with the input end of the micro-control processor, and information is read by analyzing a 9-bit 16-system digital instruction; the internal temperature sensor is enabled by enabling the STM32 processor internal channel ADC12_ IN 16.
The display terminal machine also comprises a buzzer, and the buzzer is arranged on the serial port display screen circuit; the wireless communication module is a 433Mhz wireless radio frequency communication module.
The battery and the battery pack are connected with a carbon monoxide digital sensor and an oxygen digital sensor through a first booster circuit; the battery and the battery pack are connected with the sending end of the wireless communication module and the receiving end of the wireless communication module through the second booster circuit.
The battery and the battery pack are electric storage type batteries, the battery is detachably arranged in the detection terminal machine, and the battery pack is detachably arranged in the display terminal machine.
The shell of the detection terminal machine is an explosion-proof shell.
Drawings
Fig. 1 is a schematic diagram of the downhole arrangement of the present invention;
fig. 2 is an outline view of the detection terminal of the present invention;
fig. 3 is a schematic diagram of the internal structure of the detection terminal of the present invention;
fig. 4 is an outline view of the display terminal of the present invention;
fig. 5 is a schematic diagram of the internal structure of the display terminal of the present invention;
FIG. 6 is a processing block portion of the circuit diagram of the present invention;
fig. 6 is a circuit structure of an STM32 processor according to the circuit diagram of the present invention;
fig. 7 is a circuit diagram of the present invention showing a signal conversion circuit connecting the STM32 processor and the communication module;
FIG. 8 is a circuit diagram of the peripheral port of the processing module according to the present invention;
FIG. 9 is a circuit diagram of a processing module start mode circuit according to the present invention;
FIG. 10 is a clock circuit of the processing module according to the circuit diagram of the present invention;
FIG. 11 is a circuit diagram of the processing module switch circuit according to the present invention;
fig. 12 is a voltage boost converter circuit of the present invention, in which the battery of the circuit diagram supplies power to the communication module;
fig. 13 is a voltage boost converter circuit of the present invention, in which the battery of the circuit diagram supplies power to the sensor.
In the figure: 1. a gob; 2. a safe working area; 3. detecting a terminal machine; 4. displaying the terminal machine; 31. a carbon monoxide digital sensor; 32. an oxygen digital sensor; 33. a processing module; 34. a wireless communication module sending terminal; 35. a battery; 41. a serial port display screen; 42. a wireless communication module receiving end; 43. a battery pack.
Detailed Description
The invention will be further described with reference to the following examples, which are intended only for a better understanding of the invention, and therefore, the examples do not limit the scope of the invention.
Referring to fig. 1 to 13, the coal mine underground environment alarm comprises a temperature sensor, a carbon monoxide digital sensor 31 and an oxygen digital sensor 32, and consists of a detection terminal machine 3 and a display terminal machine 4; a processing module 33, a wireless communication module sending end 34, a battery 35, the carbon monoxide digital sensor 31 and the oxygen digital sensor 32 are arranged in the detection terminal machine 3; the temperature sensor is a built-in temperature sensor of the processing module 33; the carbon monoxide digital sensor 31 and the oxygen digital sensor 32 are connected with the input end of the processing module 33; the output end of the processing module 33 is connected with the wireless communication module sending end 34; the battery 35 is electrically connected with the processing module 33, the carbon monoxide digital sensor 31, the oxygen digital sensor 32 and the wireless communication module sending end 34; the detection terminal machine 3 is installed in the underground goaf 1.
A wireless communication module receiving end 42, a serial port display screen 41 and a battery pack 43 are arranged in the display terminal machine 4, the wireless communication module receiving end 42 is in wireless communication with the wireless communication module sending end 34, and the wireless communication module receiving end 42 is connected with the serial port display screen 41; the battery pack 43 is electrically connected with the wireless communication module receiving end 42 and the serial port display screen 41; the display terminal machine 4 is arranged in the safe working area 2 outside the underground coal mining working area.
The utility model is provided with a micro control processor, the model of which is STM32F103C8T6; the serial port display screen is TJC1612T118_011N, and the radio frequency communication module is 400SL30-232.
This equipment uses STM32 micro control processor as the control center of whole circuit, has configured multiple circuit for STM32 micro control processor on the processing module. The STM32F103C8T6 is a 32-bit microcontroller based on an ARM Cortex-M kernel STM32 series, the capacity of a program memory is 64KB, the required voltage is 2V-3.6V, and the working temperature is-40 ℃ to 85 ℃. The chip has up to 9 communication interfaces, including 3 USART interfaces. Also included are up to 80 fast I/O ports, a 7-channel DMA controller, 2 12-bit analog-to-digital converters (ADCs) embedded IN the chip, each ADC sharing up to 16 external channels, and a temperature sensor associated with the input channel of ADC12_ IN16 for converting the sensor output to a digital value.
The utility model discloses a main function is the signal of being sent by STM32 processing module processing sensor (like carbon monoxide number digital sensor or oxygen digital sensor), sends the signal through wireless radio frequency module sending terminal (wireless communication module sending terminal 34 promptly) again behind the analytic signal, and the receiving terminal receives and again with signal display in screen (serial ports display screen 41) after the signal to this realizes relevant information's real time monitoring.
The oxygen digital sensor 32 and the carbon monoxide digital sensor 31 are connected with the serial port input end of the processing module 33, when the sensors work, 9-bit 16-system digital instructions are sent to the STM32 processor, and the processing module 33 analyzes the instructions to read the concentration values of oxygen and carbon monoxide in the underground working area. The temperature sensor adopts an STM32 internal temperature sensor which is used for outputting voltage, the STM32 processor reads a voltage value of the internal temperature sensor during working and carries out corresponding processing to obtain a temperature value, the internal temperature sensor outputs the voltage within the range of 2V-3.6V, the corresponding temperature value is-40 to 125 ℃, and a channel corresponding to the STM32 processor internal temperature sensor is started when the temperature sensor is required to be used. And external signals collected by the three sensors are input as signals of the whole circuit.
The signal transmission part is completed by two communication modules, and 433Mhz wireless radio frequency communication modules are adopted, wherein one is used as a sending end, and the other is used as a receiving end. The STM32 processor obtains current carbon monoxide concentration, oxygen concentration and temperature value through the signal of three kinds of sensor sending of analysis, later send 433Mhz wireless radio frequency communication module transmitting terminal through the serial ports to the gained data according to corresponding form, send out the signal by 433Mhz wireless radio frequency transmitting terminal, 433Mhz wireless radio frequency receiving terminal receives the signal, through carrying out corresponding configuration to two wireless radio frequency communication modules, realize signal transceiver and shielding external signal interference such as channel setting, baud rate setting, the information that will collect is passed to the serial ports screen by the signal receiving terminal and is realized showing. The sensor is not limited to the above-described carbon monoxide digital sensor and oxygen digital sensor. The utility model discloses survey the terminating machine and install in coal mining goaf, show that the terminating machine is installed in the safe work area not far away from the goaf, the staff can read the condition data of working face in position safer relatively to this reads real-time information.
The utility model discloses power part has adopted the battery to supply power for the circuit, for distinguishing the power supply part who surveys terminating machine and display terminal in this description, will survey the power in the terminating machine and name the battery, will show that the power in the terminating machine names the group battery, and they can be the same component actually. The battery 35 and the battery pack 43 are both storage batteries, and are detachably mounted in the detection terminal 3 or the display terminal 4. The working voltage of the sensor is 5V, the working voltage of the 433Mhz wireless radio frequency communication module is 12V, and the sensor, the wireless radio frequency communication module and the micro-control processor are supplied with power after being conditioned by the booster circuit when the battery and the storage battery are supplied with power. The whole circuit has low power consumption, the working current is less than 50ma, and the circuit can be expected to be used for more than half a year under the condition of independent power supply. In the display terminal, a power supply part is composed of a battery pack 43 and a booster circuit, and the battery pack 43 is connected to the booster circuit and further connected to a serial display screen 41. After the circuit of the whole equipment is completed, the explosion-proof shell is additionally arranged, so that effective prevention can be carried out when collapse is caused in a goaf, and the safe operation of the whole circuit is ensured. Through actual measurement, the signal transmission distance of the equipment can reach more than 400 meters under the condition that a building exists.
Compared with the traditional scheme, the utility model discloses following beneficial effect has: 1. the novel digital sensor is adopted, in the aspect of signal analysis, a 9-bit hexadecimal digital signal instruction sent by the sensor is directly analyzed, secondary calibration is not needed, and the accuracy and convenience degree of the novel digital sensor are superior to those of the traditional sensor needing to read weak current. 2. The battery pack supplies power, and the defect that the power is supplied by a cable under the well is overcome. 3. The equipment adopts the 433Mhz wireless radio frequency module to transmit signals, and the mode has the advantages that the 433Mhz wave band signal transmission distance is long, the penetration capability and the diffraction capability are strong, the attenuation of the transmission process is reduced, and the remote monitoring can be realized. 4. And as cable centralized power supply and signal transmission are not adopted, the maintenance difficulty is small. 5. The explosion-proof shell is adopted outside, and the equipment is not easily damaged by falling rocks and coal briquettes.
The utility model discloses simple structure, functional strong, safe and reliable, can realize remote signal monitoring, it is single to have solved present fixed and portable sensor detection mode in the pit, the testing result has great deviation, the fixed cable that adopts cable formula power supply and signal transmission to exist maintains the big risk of the degree of difficulty, the big scheduling problem of transmission power consumption, and compare in portable sensor, has improved the time of endurance scheduling problem greatly, can effectively guarantee production safety, personnel's safety, have wide application prospect.
The above description is only a preferred and practical embodiment of the present invention, and is not intended to limit the scope of the present invention, which is intended to be encompassed by the present invention, unless otherwise indicated by the appended claims.
Claims (6)
1. The utility model provides a colliery is environmental alarm in pit, includes temperature sensor, carbon monoxide number word sensor and oxygen digital sensor, its characterized in that: the coal mine underground environment alarm consists of a detection terminal and a display terminal;
the detection terminal machine is internally provided with a processing module, a wireless communication module sending end, a battery, the carbon monoxide digital sensor and an oxygen digital sensor; the temperature sensor is a built-in temperature sensor of the processing module; the carbon monoxide digital sensor and the oxygen digital sensor are connected with the input end of the processing module; the output end of the processing module is connected with the sending end of the wireless communication module; the battery is electrically connected with the processing module, the carbon monoxide digital sensor, the oxygen digital sensor and the sending end of the wireless communication module; the detection terminal machine is arranged in an underground coal mining goaf;
the display terminal is internally provided with a wireless communication module receiving end, a serial port display screen and a battery pack, wherein the wireless communication module receiving end is in wireless communication with the wireless communication module sending end, and the wireless communication module receiving end is connected with the serial port display screen; the battery pack is electrically connected with the receiving end of the wireless communication module and the serial port display screen; the display terminal machine is arranged in a safe working area outside the underground coal mining goaf.
2. The coal mine downhole environment alarm device according to claim 1, characterized in that: a micro-control processor is installed on the processing module, and the model of the micro-control processor is STM32F103C8T6; the carbon monoxide transmission digital sensor and the oxygen digital sensor are connected with the input end of the micro-control processor, and information is read by analyzing a 9-bit 16-system digital instruction; the internal temperature sensor is enabled by enabling the STM32 processor internal channel ADC12_ IN 16.
3. The underground coal mine environment alarm device as claimed in claim 1, wherein: the display terminal machine also comprises a buzzer, and the buzzer is arranged on the serial port display screen circuit; the wireless communication module is a 433Mhz wireless radio frequency communication module.
4. The coal mine downhole environment alarm device according to claim 1, characterized in that: the battery and the battery pack are connected with a carbon monoxide digital sensor and an oxygen digital sensor through a first booster circuit; the battery and the battery pack are connected with the sending end of the wireless communication module and the receiving end of the wireless communication module through the second booster circuit.
5. The coal mine downhole environment alarm device according to claim 1, characterized in that: the battery and the battery pack are both storage type batteries, the battery is detachably arranged in the detection terminal machine, and the battery pack is detachably arranged in the display terminal machine.
6. The coal mine downhole environment alarm device according to claim 1, characterized in that: the casing of the detection terminal machine is an explosion-proof casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222247890.9U CN217872934U (en) | 2022-08-25 | 2022-08-25 | Coal mine underground environment alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222247890.9U CN217872934U (en) | 2022-08-25 | 2022-08-25 | Coal mine underground environment alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217872934U true CN217872934U (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222247890.9U Active CN217872934U (en) | 2022-08-25 | 2022-08-25 | Coal mine underground environment alarm |
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| Country | Link |
|---|---|
| CN (1) | CN217872934U (en) |
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2022
- 2022-08-25 CN CN202222247890.9U patent/CN217872934U/en active Active
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