CN2370160Y - Sampler for harmful gas monitoring in coal mine and recording and analylizing device - Google Patents
Sampler for harmful gas monitoring in coal mine and recording and analylizing device Download PDFInfo
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- CN2370160Y CN2370160Y CN 99210672 CN99210672U CN2370160Y CN 2370160 Y CN2370160 Y CN 2370160Y CN 99210672 CN99210672 CN 99210672 CN 99210672 U CN99210672 U CN 99210672U CN 2370160 Y CN2370160 Y CN 2370160Y
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- circuit
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Abstract
The utility model relates to a monitoring device for harmful gas in coal mines, and the international patent classification number is E21F17/18. The utility model aims to provide a monitoring device for many kinds of underground harmful gas, such as CH 4, CO, CO2, SH, etc. The utility model is characterized in that a collector is composed of a power supply, a single chip computer, a keyboard, a control interface, a memory, a clock, an acoustic-optic alarm circuit, a liquid crystal display, a sensor, an adjusting circuit, an amplification circuit, an A/D conversion circuit and an extension circuit; a recording analyzer is composed of a power supply, a single chip computer, a program memory, a data RAM memory, a list memory, a record memory, a clock, a data communication interface, a liquid crystal display interface, a keyboard and an interface circuit of a printer.
Description
The utility model relates to a kind of device that is used for the colliery monitoring harmful gases, comprises collector and record analysis device, and international Patent classificating number is E21F 17/18.
Present monitoring to pernicious gas under the coal mine, is the digital multifunctional gas alarm of China Mining University as notification number for CN 2264911Y invention people, and for example publication number is artificial in coal-mine gas monitoring system comprising refined, Song Xufa for CN 1096846A invention, and it is the monitoring of CH4 that great majority are confined to gas.But along with people to improving constantly that work situation requires, to other pernicious gas such as CO, CO
2, SH, SO
2, NO
2, to useful gas O
2And other factor such as temperature, humidity etc., it also is very necessary carrying out comprehensive monitoring and analyzing, and such device is rarely found under coal mine.
It is a kind of to multiple gases under the coal mine such as CH that the purpose of this utility model is to provide
4, CO, CO
2, SH, SO
2, NO
2And O
2, temperature, the humidity device that carries out comprehensive monitoring and analysis.
A kind of collector that is used for colliery monitoring harmful gases device of realizing the utility model purpose is such: the power circuit of being made of this collector MAX8862 integrated circuit U14 and ICL7660 integrated circuit U15; PIC16C63 single-chip microcomputer U12 and key K1, K2, K3 form single-chip microcomputer and keyboard circuit; The A mouth of PIC16C63 single-chip microcomputer U12, B mouth and C mouth, 8 output latch port Q0-Q7 of SNR4HCA373 integrated circuit U10, MAX4052 integrated circuit U11 forms the control interface circuit; X24F128 integrated circuit U8, PCF8583 integrated circuit U9 form storage and clock circuit; Loudspeaker Y and light emitting diode D4 form sound light alarming circuit; Photodiode D3, MAX921 integrated circuit U13 and LM120 LCD LCD form liquid crystal display circuit; CH
4Sensor and MAX748 integrated circuit U1A, U1B, CO sensor and MAX748 integrated circuit U2A, U2B, RH sensor and INA118 integrated circuit U3, HT sensor and INA118 integrated circuit U4 form sensor and adjust circuit; MAX478 integrated circuit U7 and MAX148 integrated circuit U5, AD8303 integrated circuit U6 form amplification and analog to digital conversion circuit; O
2Sensor and MAX748 integrated circuit U16A, U16B, CO
2Sensor and MAX748 integrated circuit U17A, U17B, SH sensor and MAX748 integrated circuit U18A, U18B, SO
2Sensor and MAX748 integrated circuit U19A, U19B, NO
2Sensor and MAX748 integrated circuit U20A, U20B form expanded circuit.
A kind of record analysis device that is used for colliery monitoring harmful gases device of realizing the utility model purpose is such: U34 forms power circuit by the PS1000-5 integrated circuit; 8032 single-chip microcomputer U21, MAX813L integrated circuit U30 and 74LS373 integrated circuit U22, U23 form single chip circuit; 27256 integrated circuit U24 form the program storage circuit; 6264 integrated circuit U25 form the data RAM memory circuitry; AT28F020 integrated circuit U26, U27, U28 and MAX662 integrated circuit U29 form record storage circuit and table memory circuit; DS12887 integrated circuit U31 forms clock circuit; The RXD pin of 8032 single-chip microcomputer U21 is data wire P3.0, and the TXD pin is formed data communication interface circuit for clock line P3.1; The PA mouth of 8255 integrated circuit U32, PB mouth are formed the LCD interface circuit; The PC mouth of key board and 8255 integrated circuit U32 is formed keyboard circuit; The PA mouth of 8255 integrated circuit U33, PB mouth are formed printer interface circuit.
The beneficial effects of the utility model are: this device can be to multiple gases CH under the coal mine
4, CO, CO
2, SH, SO
2, NO
2And O
2, temperature, humidity is monitored and analyze, and can prevent that gas explosion from improve the work situation condition can for again labour protection department reliable data analysis is provided.
Accompanying drawing 1 is the block diagram of the utility model collector.
Accompanying drawing 2 is schematic diagrams of the utility model collector power circuit.
Accompanying drawing 3 is schematic diagrams of the utility model collector single-chip microcomputer and keyboard circuit.
Accompanying drawing 4 is schematic diagrams of the utility model collector control interface circuit.
Accompanying drawing 5 is schematic diagrams of the utility model collector memory and clock circuit.
Accompanying drawing 6 is schematic diagrams of the utility model collector sound light alarming circuit.
Accompanying drawing 7 is schematic diagrams of the utility model collector LCD circuit.
Accompanying drawing 8 is the utility model collector sensor and adjustment circuit CH
4, CO part schematic diagram.
Accompanying drawing 9 is the utility model collector sensor and the schematic diagram of adjusting circuit humidity part.
Accompanying drawing 10 is the utility model collector sensor and the schematic diagram of adjusting the circuit temperature part.
Accompanying drawing 11 is schematic diagrams of amplification of the utility model collector and analog to digital conversion circuit.
Accompanying drawing 12 is schematic diagrams of the utility model collector expanded circuit.
Accompanying drawing 13 is block diagrams of the utility model record analysis device.
Accompanying drawing 14 is circuit theory diagrams of the utility model record analysis device single-chip microcomputer, program storage, data RAM memory, table memory and record storage, clock and data communication interface part.
Accompanying drawing 15 is circuit theory diagrams of the utility model record analysis device power supply, LCD interface, printer interface and keyboard portion.
The aufbauprinciple of this gas controlling device collector is as follows:
Shown in the block diagram of accompanying drawing 1, this collector is by power supply, single-chip microcomputer and keyboard, control interface, memory and clock, sound and light alarm, LCD, sensor and adjustment, amplification and analog-to-digital conversion and expand nine part portion circuit branches and constitute.
Power supply adopts the input voltage of two joint 3.6V battery series connection backs as stabilizator U14 shown in accompanying drawing 2 figure, OUT2 provides 3.175V voltage, for U5, U6, U8, U9, U10, U11, U12, U13, U14, U15 provide power supply; OUT1 provides+5V voltage, after U15 is anti-phase, forms one group ± 5V voltage, for U1, U2, U3, U4, U7 provide working power.T4, T5, R36, R39, R40, R41 form battery capacity detection circuit, R37, R36 dividing point DYK-OUT are connected to the multichannel CH5 input of 8 input analog-digital converters, when high level of DYK end input, T5, T4 conducting, start the one-off pattern number conversion and declare its transformation result, whether decidable can continuous operation 8 hours.
Single-chip microcomputer and keyboard as shown in Figure 3, single-chip microcomputer selects for use U12 inside that 28 function registers, 192 RAM, 8 grades of storehouses are arranged, and the internal-external interrupt function is arranged, 22 I/O pins are arranged, clock frequency can reach 20MHZ, is provided with 4K * 14ROM in the sheet, and sleep mode is arranged.About function register and I/O mouth are set as follows, 22 I/O lines can be divided into A, B, three mouths of C, and the A mouth has only 6 I/O lines (RA0-RA5), and wherein RA4 is for opening Lou output, and each 8 I/O line of B mouth and C mouth are respectively RB0-RB7, RC0-RC7.This machine is established three buttons, and K1 is connected to RB4, and K2 is connected to RB5, and K3 is connected to RB6, and each button all will meet T2 by a current-limiting resistance, and T2 conducting keyboard is effective when RA5 is output as high level, and keyboard is invalid in demonstration, read-write memory, clock and detection.
The control interface circuit as shown in Figure 4,8 output latch port Q0-Q7 of U10, variable connector N0A to N3A and the N0B to N3B of U11, the A of single-chip microcomputer, B, C mouth are formed control interface among Fig. 3, carry out controls such as initialization, demonstration, sound and light alarm, reading writing memory, time operation, detection.CT is the 3PIN plug among Fig. 4, and 1 pin meets U11 data wire N3A, and 2 pin meet U11 clock line N3B, 3 pin ground connection, and this plug is used for collector and the record analysis device connects usefulness.
Memory and clock circuit as shown in Figure 5, memory U8 capacity is 16KB, has solidified used numeral, symbol and the kanji code of this machine display in the sheet, simultaneously also is the record memory.Clock U9 pin 7 connects with Fig. 3 single-chip microcomputer U12 pin 13, and clocking error can be aligned by C12.Memory and clock chip with same data wire by U8, U9 separately pin 5 draw with Fig. 3 single-chip microcomputer U12 pin RC4 and link to each other, connect by variable connector U11 by low four differences of address word during communication and the communication of single-chip microcomputer.
Sound light alarming circuit as shown in Figure 6, triode T1 is that signal amplifies, loudspeaker Y and light emitting diode D4 are acousto-optic conversion, signal is taken from the 14 pin N2A of Fig. 4 U11.
LCD circuit as shown in Figure 7, LM120 is that the LCD band is backlight, each primer fluid crystal display all will be provided with condition backlight, the output Q7 of U10 is changed to high level among Fig. 4, the SG-N of R31 end is high level among Fig. 7, U13 is that the height of voltage comparator output OUT level depends on photodiode D3, when ambient light is higher than the internal resistance of the quick diode of half-light, the voltage of the IN+ input of voltage comparator is greater than the input terminal voltage of IN-, voltage comparator output high level T3 conducting, LCD backlight is bright, otherwise then anti-.The D0 to D7 of LM120 is an input, shows that it is the B mouth that signal is taken from RB0 to the RB7 pin of Fig. 3 single-chip microcomputer U12.
Sensor with adjust circuit and divide gas, humidity and three parts of temperature: the gas part as shown in Figure 8, CH
4Be galvanic cell type with the CO sensor, 1,2 pins add work voltage, and 3 pin are current output terminals; The U1A operational amplifier is CH
4Operating voltage is provided, and by the operating point that W1 adjusts and fits, the U1B amplifier is CH
4The defeated voltage that is changed to of the electric current of output; CO circuit and CH
4Principle is identical to be omitted.Humidity part as shown in Figure 9, humidity sensor RH pin 3 connects positive pin 1 ground connection of power supply, pin 2 is signal voltage output, 6 pin are exported humidity voltage after U4 amplifies.Temperature section as shown in Figure 10, temperature pick up HT is a two ends semiconductor, it varies with temperature system's number is every degree 2mv, U4 amplifies the voltage signal that temperature pick up changes, 2 pin are output for input 6 pin.
Amplification and analog to digital conversion circuit are as shown in Figure 11, its effect is that the voltage signal of sensor circuit is converted to the treatable data signal of single-chip microcomputer, is made up of ten analog-digital converter U5 of MAX148 and AD8303 12 figure place weighted-voltage D/A converter U6 and MAX478 amplifier U7.From CH
4, CO, RH and each sensor circuit of HT voltage signal connect with CH0 to the CH3 input pin of U5 successively, be converted to data signal and scurry the input pin RC5 of line output to Fig. 3 single-chip microcomputer U12 by its output pin DOUT.
Expanded circuit has O as shown in Figure 12 among the figure
2, CO
2, SH, SO
3, NO
2Five kinds of gas sensors, its principle and Fig. 8 sensor are identical with adjustment circuit gas part.
The main effect of this gas controlling device collector is, by its set various sensor CH
4, CO, RH and HT, amount of corresponding gas, carbon monoxide, humidity and temperature etc. is detected.Level is provided with the number order option line by line on the display screen of the display of collector: 1, detected object CH
4, CO, RH and HT; 2, expansion detects CO
2, SH, SO
2, NO
2And O
23, preserve data; 4, data are sent into the record analysis device.The keyboard of collector has three keys, and K1 makes selection from top to bottom, and K2 makes selection from bottom to top, and K3 is used for determining to select.When not carrying out record analysis and report printing, this collector can disconnect with the record analysis device and connect off-line working, on one's body being held or carried by class monitor and group leader's hand.The 3 classes of exchanges in 24 hours in the down-hole of this collector are used, and whether power circuit can work 8 hours by self check self-contained battery capacity when per tour was started working, and see the relevant explanation of power circuit for details.
The record analysis device aufbauprinciple of this gas controlling device is as follows:
Shown in the block diagram of accompanying drawing 13, this record analysis device is made of power supply, single-chip microcomputer, program storage, data RAM memory, table memory, record storage, clock, data communication interface, LCD interface, keyboard, 11 parts of printer interface.
Single-chip microcomputer, program storage, data RAM memory, table memory, record storage, clock part be as shown in figure 14:
U21 is that single-chip microcomputer 8032 has four I/O mouths, wherein the P0 mouth is the multiplexing mouth of address least-significant byte and 8 position datawires, P2 is as the address most-significant byte, the P3.1 of P3 mouth, P3.2 are serial mode and clock line, and other bit line of P3 mouth and P1 mouth 8 control enabling and the sheet choosing of score storage U25 to U28, clock, printing interface, display interface respectively.U30 can make the single-chip microcomputer reliable reset, and this chip is returned U31 reset signal is provided except that the single-chip microcomputer reset signal is provided.U24 is the external program memory, and various function programs all are solidificated in this chip.U25 is the reading writing memory of using when printing showing for the data RAM memory.U26 to U28 is the memory that record data and form are used, and these chips want the VPP pin to add that the voltage that writes of one+12V is provided by U29 writing fashionable needs.P3.0 is a clock line for data wire P3.1, will be set to the half-duplex asynchronous communication mode to this bipod before communication, and transfer rate will be set in below the 9.6K baud rate so that and collector guarantee correct communication.Clock chip adopts DS12887 to carry lithium battery, has multiplexing mouthful of one group of 8 bit address/data to pass through the AS pin and separates, and this pin is connected on the ALE end of U21 single-chip microcomputer, latch address when trailing edge.CZ is the 3PIN socket among the figure, and 1 pin meets U21 data wire RXD, and 2 pin meet U21 clock line TXD, 3 pin ground connection, and this socket is used for the record analysis device and Fig. 4 collector plug CT connects usefulness.
Power supply, LCD interface, keyboard, printer interface circuit be as shown in figure 15:
PS1000-5 integrated circuit U34 is the AC220V/+5V Switching Power Supply, and the electric current of its output+5V, 2A provides power supply for complete machine.24 keys of this machine are connected on the PC mouth of U32 and PB5, PB6, the PB7.LCD is 128 * 64 dot matrix, can show the prompting of various command, the state when curve and modification form.The PB0-PB4 of U32 is its data wire, and the PA mouth is its control line.What this machine adopted is that the LQ-150K of EPSON company type printer and other type are not general, and printer is by PA, PB and the communication of single-chip microcomputer U21 machine of U33 chip.Also be that level is provided with the number order option line by line on the display screen of record analysis device display: 1, date and time is proofreaied and correct; 2, curve shows.It is numerical key that the keyboard of record analysis device has 16 key 0-9 of 24 key: K1-K16 and A-F; K17, K18 and K19 are selection function key, keep supplying choosing, following choosing and determine usefulness; K20, K21, K22, K23 are the printing function key, use for curve printing, report printing, mixing printing and time-out printing; K24 is this machine reset key.
When collector plug CT with after record analysis device socket CZ docks, multiple gases such as CH that the record analysis device can be sent collector here
4, CO, CO
2, SH, SO
2, NO
2And O
2, temperature, humidity data carry out analysis-by-synthesis, demonstration or printing, improve the work situation condition for labour protection department reliable data analysis be provided.
Claims (2)
1, a kind of collector that is used for colliery monitoring harmful gases device is characterized in that: the power circuit of being made of this collector MAX8862 integrated circuit U14 and ICL7660 integrated circuit U15; PIC16C63 single-chip microcomputer U12 and key K1, K2, K3 form single-chip microcomputer and keyboard circuit; The A mouth of PIC16C63 single-chip microcomputer U12, B mouth and C mouth, 8 output latch port Q0-Q7 of SNR4HCA373 integrated circuit U10, MAX4052 integrated circuit U11 forms the control interface circuit; X24F128 integrated circuit U8, PCF8583 integrated circuit U9 form storage and clock circuit; Loudspeaker Y and light emitting diode D4 form sound light alarming circuit; Photodiode D3, MAX921 integrated circuit U13 and LM120 LCD LCD form liquid crystal display circuit; CH
4Sensor and MAX748 integrated circuit U1A, U1B, CO sensor and MAX748 integrated circuit U2A, U2B, RH sensor and INA118 integrated circuit U3, HT sensor and INA118 integrated circuit U4 form sensor and adjust circuit; MAX478 integrated circuit U7 and MAX148 integrated circuit U5, AD8303 integrated circuit U6 form amplification and analog to digital conversion circuit; O
2Sensor and MAX748 integrated circuit U16A, U16B, CO
2Sensor and MAX748 integrated circuit U17A, U17B, SH sensor and MAX748 integrated circuit U18A, U18B, SO
2Sensor and MAX748 integrated circuit U19A, U19B, NO
2Sensor and MAX748 integrated circuit U20A, U20B form expanded circuit.
2, a kind of record analysis device that is used for colliery monitoring harmful gases device, it is characterized in that: U34 forms power circuit by the PS1000-5 integrated circuit; 8032 single-chip microcomputer U21, MAX813L integrated circuit U30 and 74LS373 integrated circuit U22, U23 form single chip circuit; 27256 integrated circuit U24 form the program storage circuit; 6264 integrated circuit U25 form the data RAM memory circuitry; AT28F020 integrated circuit U26, U27, U28 and MAX662 integrated circuit U29 form record storage circuit and table memory circuit; DS12887 integrated circuit U31 forms clock circuit; The RXD pin of 8032 single-chip microcomputer U21 is data wire P3.0, and the TXD pin is formed data communication interface circuit for clock line P3.1; The PA mouth of 8255 integrated circuit U32, PB mouth are formed the LCD interface circuit; The PC mouth of key board and 8255 integrated circuit U32 is formed keyboard circuit; The PA mouth of 8255 integrated circuit U33, PB mouth are formed printer interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99210672 CN2370160Y (en) | 1999-05-11 | 1999-05-11 | Sampler for harmful gas monitoring in coal mine and recording and analylizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99210672 CN2370160Y (en) | 1999-05-11 | 1999-05-11 | Sampler for harmful gas monitoring in coal mine and recording and analylizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2370160Y true CN2370160Y (en) | 2000-03-22 |
Family
ID=34003777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99210672 Expired - Fee Related CN2370160Y (en) | 1999-05-11 | 1999-05-11 | Sampler for harmful gas monitoring in coal mine and recording and analylizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2370160Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1693675B (en) * | 2005-06-06 | 2010-07-28 | 杨光良 | Full automatic coal mine gas prewarning explosion-proof system |
| CN101684729B (en) * | 2007-01-19 | 2012-12-05 | 华北科技学院 | Coal-seam gas pressure test system |
| CN103016064A (en) * | 2012-12-26 | 2013-04-03 | 北京邮电大学 | Analyzing method and analyzing system of gas accident reason |
-
1999
- 1999-05-11 CN CN 99210672 patent/CN2370160Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1693675B (en) * | 2005-06-06 | 2010-07-28 | 杨光良 | Full automatic coal mine gas prewarning explosion-proof system |
| CN101684729B (en) * | 2007-01-19 | 2012-12-05 | 华北科技学院 | Coal-seam gas pressure test system |
| CN103016064A (en) * | 2012-12-26 | 2013-04-03 | 北京邮电大学 | Analyzing method and analyzing system of gas accident reason |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |