CN206753656U - Mine coal spontaneous combustion characteristic information high density network monitoring and warning system - Google Patents
Mine coal spontaneous combustion characteristic information high density network monitoring and warning system Download PDFInfo
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- CN206753656U CN206753656U CN201720262469.1U CN201720262469U CN206753656U CN 206753656 U CN206753656 U CN 206753656U CN 201720262469 U CN201720262469 U CN 201720262469U CN 206753656 U CN206753656 U CN 206753656U
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Abstract
The utility model provides a kind of mine coal spontaneous combustion characteristic information high density network monitoring and warning system, and the system includes multiparameter wireless sensor node and wireless monitor base station；Infrared remote control module in multiparameter wireless sensor node, Minitype negative pressure pump module, 485 modules, sound and light alarm module is connected with the first single-chip microcomputer, sensor assembly docks with the first single-chip microcomputer, first single-chip microcomputer and the first wireless self-networking module communicate to connect, first wireless self-networking module is connected with wireless monitor base station, the second wireless self-networking module is connected with second singlechip in wireless monitor base station, touch-screen, data memory module, 485 modules and RJ45 modules are connected with second singlechip, second wireless self-networking module communicates to connect with ring exchanger, ring exchanger uploads to ground monitoring center by communications optical cable by information is transmitted.The monitoring and warning system can effectively early prediction and Location of Mine coal spontaneous combustion hidden danger, solve the harm that coal spontaneous combustion is brought to shaft production.
Description
Technical field
It the utility model is related to a kind of Safety Monitoring Control System of Coal Mine, and in particular to a kind of mine coal spontaneous combustion characteristic information
High density network monitoring and warning system.
Background technology
The present situation of the coal production in China is：Mine back production is developed in depth and breadth, and surrouding rock stress is big, and comprehensive something lost coal of putting is more, rule of leaking out
Restrain complicated and changeable, self-ignition fatalness is big；Comprehensive coal face goaf, citadel, along empty side be easily formed it is stronger leak out, adjacent sections
A large amount of loose coals are left, easily oxidation heating.The goaf that back production is formed gradually is joined together, and a wide range of goaf is present
Serious impact, gas, toxic and harmful gas are gushed out and coal spontaneous ignition hidden danger.Especially mine part exploiting field production terminates simultaneously
After closing, threat of the large area goaf to mine safety production is increasingly severe, and goaf coal and rock is destroyed non-with gas
Uniformly release, under conditions of ventilation supplies oxygen, cause a large amount of releases of goaf spontaneous combustion of coal seam and fuel gas, induce goaf
Spontaneous combustion or flammable gas explosion disaster accident, serious threat the safety of miner's life and property.Goaf, which exists, loses coal, leaks out
Passage is more, is influenceed by factors such as mining work activities, change of atmospheric pressure, " breathing " air leakage phenomena easily occurs and causes the things such as coal nature
Therefore.
The coal mine safety monitoring technology in China improves a lot at present, but in terms of coal fire calamity perception, monitoring system
Shortcomings are gone back in terms of information processing, limited data resource " excavation " analysis degree is inadequate, and spontaneous combustion degree of danger differentiates and prevented
Control the information content deficiency of decision-making, it is impossible to find coal spontaneous combustion early stage hidden danger in time, seriously constrain coal fire disaster monitoring early warning technology
Development.Existing fire extinguishing means specific aim is not strong, conventional grouting, note nitrogen etc. preventing and extinguishing fire technology lack high efficiency with it is long-acting
Property, it is difficult to realize effective prevention and control.Therefore, spontaneous fine seam wireless monitor early warning technology is studied, to coal spontaneous combustion monitoring technology water
Flat raising has actual application value.Dynamic change characterization is presented in spontaneous combustion in goaf, and personal monitoring's scope is big, the cycle
Long, continuity is again poor, and along with measuring point is more, distance is remote, environment is complicated, monitoring is difficult, and this causes management, the monitoring to goaf
It is extremely difficult, it is difficult to realize to have mined-out area hazard predict and early warning, it is impossible to for timely and effectively prevent spontaneous combustion disaster provide according to
According to.
Utility model content
To solve the problems, such as that existing detection technique is difficult to realize goaf effective hazard prediction and early warning, this practicality
It is new provide it is a kind of can effectively early warning and positioning coal-mine fire hidden danger mine coal spontaneous combustion characteristic information high density network
Change monitoring and warning system.
The technical solution of the utility model is as follows：The mine coal spontaneous combustion characteristic information high density networkization monitoring provided is pre-
Alert system includes multiple multiparameter wireless sensor nodes and multiple wireless monitor base stations；Multiparameter wireless sensor node includes
Energy supply module, sensor assembly, signal conditioning circuit, the first single-chip microcomputer, the first wireless self-networking module, infrared remote control mould
Block, Minitype negative pressure pump module, 485 modules, sound and light alarm module and explosion-resistant enclosure；Minitype negative pressure pump module passes for multiparameter wireless
Sensor node provides the sample gas needed for gas detection, and infrared remote control module is used for the calibration of multiparameter wireless sensor node, energy
Amount supply module provides power supply for multiparameter wireless sensor node；Infrared remote control module, Minitype negative pressure pump module, 485 modules,
Sound and light alarm module is connected with the first single chip communication, and the first wireless self-networking module includes wireless communication module；Sensor
Module is docked by signal conditioning circuit with the I/O mouths of the first single-chip microcomputer, and the first single-chip microcomputer leads to the first wireless self-networking module
Letter connection, the first wireless self-networking module are connected by antenna with wireless monitor base station；Wireless monitor base station includes the second monolithic
Machine, energy supply module, data memory module, 485 modules, RJ45 modules, the second wireless self-networking module, touch-screen and explosion-proof
Shell；Energy supply module provides power supply for wireless monitor base station, and the second wireless self-networking module is wireless with first by antenna
MANET module is communicated to connect, and the second wireless self-networking module is connected with second singlechip, touch-screen, data memory module, 485
Module and RJ45 modules communicate to connect with second singlechip, and second singlechip is simultaneous by 485 modules or RJ45 modules and flame proof
Intrinsic safety type ring exchanger communicates to connect, and Flameproof and intrinsically safe ring exchanger uploads to ground by communications optical cable by information is transmitted
Face Surveillance center.
In above-mentioned technical proposal, in order that multiparameter wireless sensor node is steady in a long-term under underground coal mine adverse circumstances
Reliably working, the sensor assembly of multiparameter wireless sensor node can be built-in sensor, and built-in sensor is arranged at
In air chamber, air chamber is provided with the first fast pneumatic joint and the second fast pneumatic joint, and the first fast pneumatic joint passes through silica gel
Pipe is connected with Minitype negative pressure pump module, and the second fast pneumatic joint is connected by silicone tube with dust filter unit, passes through dust mistake
Filter discharge gas in environment.
The sensor module may include there is carbon monoxide transducer, oxygen sensor, methane transducer, pressure difference sensing
Device, temperature sensor and humidity sensor.
Preferred wireless communication distance≤2000m between adjacent multiparameter wireless sensor node.
Further, the redundancy of wireless monitor system is considered, it is excellent between adjacent multiparameter wireless sensor node
Select wireless communication distance≤500m.
Preferred distance≤2000m between multiparameter wireless sensor node and wireless monitor base station.
Further, the stability and reliability of wireless monitor system are considered, multiparameter wireless sensor node and wireless
Preferred distance≤500m between monitoring base station.
Mine coal spontaneous combustion characteristic information high density network monitoring and warning system can use dynamic during data acquisition
State adjusts first-order filtering Coefficient Algorithm, comprises the following steps：
1) sensor assembly is sampled three times to variable, respectively first time sampled value X (n-2), second of sampled value X
(n-1), third time sampled value X (n), sampled value is stored respectively；
2) difference of second of sampled value and first time sampled value is calculated, calculates third time sampled value and second of sampled value
Difference, whether the direction of poor value changes consistent, if difference is all just or is all negative, difference change direction is identical, if
Difference one positive one is negative, then difference changes in the opposite direction；
If 3) difference changes in the opposite direction, two variables of filtering counter and filter factor are reset, export current filter
The value α of wave system number；
If 4) difference change direction is consistent, filtering counter variable is added 1 certainly；Judge whether the absolute value of difference is more than to set
Determine threshold value, if difference is more than threshold value, filtering counter variable is added 2 certainly, if difference is less than threshold value, jumps out judgement；Judge
Whether filtering counter reaches count upper-limit, if reaching count upper-limit, filter factor and coefficient increment are summed, and will
Counter O reset is filtered, if filtering counter is not reaching to count upper-limit, jumps out circulation；
5) the value α of current filter coefficient is exported；
6) first-order low-pass ripple is utilized, filter coefficient alpha is brought into algorithmic formula Y (n)=α X (n) (1- α) Y (n-1),
This filtering output value Y (n) is obtained, wherein, α is filter factor, and Y (n-1) is last time filtering output value.
Preferably, pass can be used when mine coal spontaneous combustion characteristic information high density network monitoring and warning system data merges more
Sensor information fusion algorithm.
The beneficial effects of the utility model are：
1. the monitoring and warning systematic difference effectively early warning and positioning coal spontaneous combustion hidden danger, solution coal fire disaster can be given
The harm problem that mine safety production is brought, it is ensured that the promptness and high efficiency of mine coal spontaneous combustion fire extinguishing work.The system is led to
Cross and obtain effective, accurate coal spontaneous combustion characteristic information, fusion recognition, situation evaluation and threat estimating are carried out, as coal spontaneous combustion
Diagnosis and the criterion of early warning, reach correct identification, the purpose of early warning, reduce rate of false alarm and rate of failing to report, realize goaf coal spontaneous combustion
Characteristic information dynamic monitoring and early warning, for the isolation of mine goaf coal spontaneous combustion fire, closing and control provide important decision according to
According to.
2 the utility model are passed using collection CO gas sensor, oxygen sensor, methane gas sensor, pressure difference
Sensor, temperature sensor and humidity sensor are in the multiparameter wireless sensor node of one, and networking speed is fast, MANET hop count
More, network size is big, can be achieved to identify the high density network dynamic monitoring of coal spontaneous combustion danger zone and hidden danger.Using module
Change the method that distance, power and ground are consistent with data transfer direction between design, shortening component, it is anti-interference to improve pcb board
Property, and close to each ic power input termination decoupling capacitor, suppress the interference of power supply.
3. the utility model proposes the arrangement of the wireless measuring point in coal spontaneous combustion danger zone, it is determined that multiparameter wireless passes
The key parameter of sensor node arrangement, the arrangement of measuring point is optimized, solve the mined out area working face rear portion of large area and lose coal
Region, along empty side, the technical barrier of citadel dynamic monitoring early warning.For the spy such as underground goaf is in extensive range, environment is complicated
Point, the arrangement have be easy to laying, it is easy to maintenance the advantages of, can on-line continuous monitoring coal spontaneous combustion variation tendency, work as temperature
When degree or a certain gas concentration exceed normal range (NR), alarm is sent, changes timely early warning and positioning to coal spontaneous combustion Information abnormity.
4. monitoring and warning system uses multi-sensor Fusion Algorithm in data fusion, the coal of diverse location is merged certainly
Fire multicomponent index gas and temperature information, it is determined that the quantitative pass of coal spontaneous combustion danger zone temperature and each index gas concentration
System so that information exchange and fault self-diagnosis are realized between sensor node, realizes the intellectuality of sensor.
During 5. monitoring and warning system carries out data acquisition by multiparameter wireless sensor node, adjusted using dynamic
The algorithm of whole first-order filtering coefficient, solve the shortcomings that data acquisition medium sensitivity and conflicting stability, improve underground
The accuracy of data acquisition in complex environment.
Brief description of the drawings
Fig. 1 is the utility model mine coal spontaneous combustion characteristic information high density network monitoring and warning system architecture diagram；
Fig. 2 is the utility model embodiment multiparameter wireless sensor node structured flowchart；
Fig. 3 is wireless monitor architecture of base station block diagram of the embodiment of the present invention；
Fig. 4 is the structured flowchart of the utility model embodiment sensor assembly；
Fig. 5 is that the utility model multi-sensor information exchanges blending algorithm figure；
Fig. 6 is the algorithm pattern that the utility model dynamic adjusts first-order filtering coefficient.
Reference：1- energy supply modules, 2- sensor assemblies, 3- signal conditioning circuits, the single-chip microcomputers of 4- first, 5-
One wireless self-networking module, 6- infrared remote control modules, 7- Minitype negative pressure pump modules, 8-485 modules, 9- sound and light alarm modules, 11-
Temperature sensor, 12- humidity sensors, 13- methane transducers, 14- carbon monoxide transducers, 15- oxygen sensors, 16- pressures
Gap sensor, 18- energy supply modules, the wireless self-networking modules of 19- second, 20- second singlechips, 21- touch-screens, 22-
RJ45 modules, 23- data memory modules, 24-485 modules
Embodiment
The technical solution of the utility model is described in more detail below in conjunction with the accompanying drawings：
As shown in Figure 1, Figure 2, Figure 3 shows, mine coal spontaneous combustion characteristic information high density network monitoring and warning system includes setting
Multiple Mine-used I. S multiparameter wireless sensor nodes and multiple Mine-used I. S wireless monitor base stations in underground；Mining
Peace type multiparameter wireless sensor node includes energy supply module 1, sensor assembly 2, signal conditioning circuit 3, the first monolithic
Machine 4, the first wireless self-networking module 5, infrared remote control module 6, Minitype negative pressure pump module 7,485 modules 8, sound and light alarm module 9
And explosion-resistant enclosure；Minitype negative pressure pump module 7 uses Miniature negative pressure pump, is provided for Mine-used I. S multiparameter wireless sensor node
Sample gas needed for gas detection, gives gas information transfer to the first single-chip microcomputer 4；It is more that infrared remote control module 6 is used for Mine-used I. S
The calibration of parameter wireless sensor node, energy supply module 1 include external power supply power supply circuit and mining lithium manganate battery group
With safe secondary protection circuit plate, power supply is provided for Mine-used I. S multiparameter wireless sensor node；It is infrared remote control module 6, miniature
Negative pressure pump module 7,485 modules 8, sound and light alarm module 9 communicate to connect with the first single-chip microcomputer 4, the first wireless self-networking module 5
Including wireless communication module；Sensor assembly 2 is docked by signal conditioning circuit 3 with the I/O mouths of the first single-chip microcomputer 4, and first is single
Piece machine 4 communicates to connect with the first wireless self-networking module 5, the first wireless self-networking module 5 by antenna and Mine-used I. S without
Line monitoring base station connects.
Mine-used I. S wireless monitor base station include second singlechip 20, energy supply module 18, data memory module 23,
485 modules 24, RJ45 modules 22, the second wireless self-networking module 19, touch-screen 21 and explosion-resistant enclosure, energy supply module 18 are wrapped
External power supply power supply circuit and mining lithium manganate battery group and safe secondary protection circuit plate are included, is Mine-used I. S wireless monitor base station
Power supply is provided, the second wireless self-networking module 19 communicated to connect by antenna and the first wireless self-networking module 5, second it is wireless oneself
Networking module 19 is connected with second singlechip 20, and touch-screen 21, data storage, 485 modules 24 and RJ45 modules 22 are with
Two single-chip microcomputers 20 communicate to connect, and second singlechip 20 passes through 485 modules 24 or RJ45 modules 22 and mine explosion-suppression and intrinsic safety type ring
Network switch communicates to connect, and mine explosion-suppression and intrinsic safety type ring exchanger uploads to ground by mining communications optical cable by information is transmitted
Face Surveillance center.
As shown in figure 4, in order that multiparameter wireless sensor node long time stability under underground coal mine adverse circumstances
Work, the sensor assembly 2 of multiparameter wireless sensor node is built-in sensor, and built-in sensor is arranged at sensor
In air chamber, air chamber is provided with the first fast pneumatic joint and the second fast pneumatic joint, and the first fast pneumatic joint passes through silica gel
Pipe is connected with Minitype negative pressure pump module 7, and the second fast pneumatic joint is connected by silicone tube with dust filter unit, passes through dust mistake
Filter discharge gas in environment.Sensor assembly 2 includes carbon monoxide transducer 14, oxygen sensor 15, methane and passed
Sensor 13, differential pressure pickup 16, temperature sensor 11 and humidity sensor 12.
First wireless self-networking module 5 is U.S. DigiXBee PRO, and the signal input of the first wireless self-networking module 5 is drawn
Pin DIN connects with the first single-chip microcomputer 4STM32F the 79th pin, the signal output pin DOUT of the first wireless self-networking module 5
Connect with the first single-chip microcomputer 4STM32F the 80th pin.The power pins VCC and the first 3.3V of first wireless self-networking module 5
The 3.3V voltage output ends VCC1_3.3V of supplying cell connects, the grounding pin GND ground connection of the first wireless self-networking module 5.
Second wireless self-networking module 19 is U.S. DigiXBee PRO, and the signal of the second wireless self-networking module 19 inputs
Pin DIN connects with second singlechip 20STM32F the 79th pin, and the second wireless self-networking module 192-3 signal output is drawn
Pin DOUT connects with second singlechip 20STM32F the 80th pin.
Mine-used I. S multiparameter wireless sensor node, to sensor gathered data, then is passed through by the first single-chip microcomputer 4
First wireless self-networking module 5 carries out the transmission of data, transmits data among the second wireless self-networking module 19, when second
Wireless self-networking module 19 works in the slave mode, notifies second singlechip STM32F to receive newly to connect in buffering by interrupt mode
The data frame of receipts, when second singlechip STM32F is operated under holotype, by SPI interface to the second wireless self-networking module 19
Send order or read-write data.To prevent the storage resource exceeded inside second singlechip STM32F of the overabundance of data of record
Situation occurs, and extends out a piece of serial data memory.Second singlechip STM32F is connected with RS485 circuits, RS485 circuits and electricity
Brain host computer is connected, and can include second singlechip STM32F operation conditions on computer host computer by serial ports, Ke Yiji
The convenient debugging of the earth.
Require communication distance for tens meters to upper km when, widely used RS-485 universal serial bus.RS-485 is using flat
Weighing apparatus is sent and differential received, therefore with the ability of suppression common mode interference.There is high sensitivity plus bus transceiver, can detect
As little as 200mV voltage, therefore transmission signal can be restored beyond km.RS-485 be used for it is very convenient during multi-point interconnection,
Many signal wires can be saved.
There are multiple Mine-used I. S multiparameter wireless sensor nodes and multiple Mine-used I. Ss wirelessly to supervise in underground coal mine
Survey base station, per the distance between adjacent Mine-used I. S multiparameter wireless sensor node and with mining of wireless receiving and dispatching
The adjacent Mine-used I. S multiparameter wireless sensor node of safety type wireless monitoring base station and wireless receiving and dispatching Mine-used I. S are wireless
The distance between monitoring base station is respectively less than the transmission range equal to wireless Ad Hoc multihop network.Each Mine-used I. S is wirelessly supervised
Survey base station and one or more Mine-used I. S multiparameter wireless sensor node wireless connections.Adjacent Mine-used I. S is joined more
The distance between number wireless sensor node≤2000m.The redundancy of consideration wireless monitor system, adjacent Mine-used I. S are more
Preferred wireless communication distance between parameter wireless sensor node is≤500m.Mine-used I. S multiparameter wireless sensor section
The distance between point and Mine-used I. S wireless monitor base station≤2000m.Consider the stability and reliability of wireless monitor system,
Preferred distance between Mine-used I. S multiparameter wireless sensor node and Mine-used I. S wireless monitor base station is≤500m.
Because different mine comprehensive coal face length are different, mining can be flexibly selected according to the physical length of mine comprehensive coal face
The distance between peace type multiparameter wireless sensor node quantity and wireless receiving and dispatching Mine-used I. S wireless monitor base station.The system
It is to lay wireless multiple parameter sensor in the danger zone that coal spontaneous combustion easily occurs, to humiture, pressure difference, CO, CH4、O2Deng coal spontaneous combustion
Characteristic information gas is acquired and monitored, by wireless Ad Hoc multihop network by monitoring result be sent to Mine-used I. S without
Line monitoring base station, handled by monitoring and warning to the timely early warning of abnormal conditions and positioning, so as to take measures on customs clearance.For underground
The complex environment of coal spontaneous combustion concealed fire, the variation tendency of energy on-line continuous monitoring coal spontaneous combustion, to the different of coal spontaneous combustion characteristic information
Often change timely early warning and positioning.
As shown in fig. 6, the first single-chip microcomputer 4 carries out data acquisition by Mine-used I. S multiparameter wireless sensor node
During, the algorithm of first-order filtering coefficient is adjusted using dynamic, solves data acquisition medium sensitivity and the mutual lance of stability
The problem of shield, improve the accuracy of data acquisition.The algorithm that first single-chip microcomputer 4 uses during data acquisition is adjusted for dynamic
Whole first-order filtering Coefficient Algorithm, comprises the following steps：
1) sensor assembly 2 is sampled three times to variable, respectively first time sampled value X (n-2), second of sampled value
X (n-1), third time sampled value X (n), sampled value is stored respectively；
2) difference of second of sampled value and first time sampled value is calculated, calculates third time sampled value and second of sampled value
Difference, whether the direction of poor value changes consistent, if difference is all just or is all negative, difference change direction is identical, if
Difference one positive one is negative, then difference changes in the opposite direction；
If 3) difference changes in the opposite direction, two variables of filtering counter and filter factor are reset, export current filter
The value α of wave system number；
If 4) difference change direction is consistent, filtering counter variable is added 1 certainly；Judge whether the absolute value of difference is more than to set
Determine threshold value, if difference is more than threshold value, filtering counter variable is added 2 certainly, if difference is less than threshold value, jumps out judgement；Judge
Whether filtering counter reaches count upper-limit, if reaching count upper-limit, filter factor and coefficient increment are summed, and will
Counter O reset is filtered, if filtering counter is not reaching to count upper-limit, jumps out circulation；
5) the value α of current filter coefficient is exported；
6) first-order low-pass ripple is utilized, filter coefficient alpha is brought into algorithmic formula Y (n)=α X (n) (1- α) Y (n-1),
This filtering output value Y (n) is obtained, wherein, α is filter factor, and Y (n-1) is last time filtering output value.
In the algorithm of dynamic adjustment first-order filtering coefficient：
Input data：First time sampled value, second of sampled value, third time sampled value；
Data output：The coefficient of this filtering；
Constant：Coefficient increment (sensitivity of the selected influence filtering of numerical value), filtering counter maximum (influences data
Jitter), sample difference maximum (numerical value selected influence filtering sensitivity)；
First-order low-pass ripple is weighted using this sampled value with last time filtering output value, is obtained effective filter value, is made
Obtain output valve has feedback effect to input.Feature is：Filter factor is smaller, and filter result is more steady, but sensitivity is lower, filter
Wave system number is bigger, and sensitivity is higher, but filter result is more unstable.
Improvement for filtering algorithm explains that algorithm should realize following functions：
1. when excursion is larger before and after data, after filtering after result can timely keep up with the change of before processing
Amplitude (i.e. high sensitivity) and data variation it is faster, sensitivity is higher.
2. when data variation tends towards stability, it is believed that approximation is above and below a certain data during oscillation, after filtering
Result afterwards tends to be steady (i.e. stability is high).
3. when data has stabilized, after filtering after result be approximately equal to the data of sampling
Specific implementation：Before data are after filtering, first prejudged, data are sampled three times, if this inferior number
Filter factor is then constantly improved in direction consistent (increase or reduce simultaneously simultaneously) according to change, if data variation persistently increases
(being more than given threshold in advance) then accelerates to improve filter factor.If sampled data change is inconsistent three times (there is data increase,
Have data reduction) illustrate existence and stability error, now filter factor is reset.
After the sensor gathered data of the first single-chip microcomputer 4 is merged by programmed algorithm, more than the threshold value of real gross data
When, now, current sensor and ambient sensors enter row data communication, carry out the comparison of data, if ambient sensors with it is current
Sensor detect data difference it is larger when, illustrate that current sensor has damaged, can not be continuing with, to Mine-used I. S without
Line monitoring base station sends abnormal signal, notifies surface personnel to carry out maintenance and inspection, utilizes the spy obtained by feature-based fusion
Reference ceases, and has good fault-tolerance, carries out comparing with ambient sensors, reduces False Rate, can improve operating efficiency, side
Just safeguard and use.
As shown in figure 5, multi-sensor Fusion Algorithm can be used in the first single-chip microcomputer 4 during data fusion.Pass through monitoring
Whether the data of collection are compared to determine whether to break down, if breaking down, to Mine-used I. S beyond the possible situation of reality
Wireless monitor base station sends fault-signal, notifies staff to repair.The application of multi-sensor Fusion Algorithm, it can improve
The performance of sensor detection, the confidence level of judgement is improved, reduce the fuzziness of information, substantial amounts of number is saved for surface personnel
According to processing time, operating efficiency is improved.Using the characteristic information extracted from each sensor raw data, comprehensive analysis is carried out
With processing, different types of sensor observes same section, each sensor in the first single-chip microcomputer 4 data acquisition,
Pretreatment, feature extraction, identification or judgement, united inferred results are obtained, if fused data has relatively gas constant theory pole
Value, then earthward staff sends false alarm, comes to repair.
The scope of protection of the utility model is not limited to specific embodiment of the present utility model, for the skill of the art
For art personnel, under enlightenment of the present utility model, can from this patent disclosure directly export associate some principles and
Structure identical basic deformation, or the replacement of known technology is commonly used in the prior art, and the mutually different combination of feature identical,
The technical characteristic of same or similar technique effect simply changes, especially the application technology and product in coal spontaneous combustion, belongs to this
The protection domain of utility model technology.
Claims (7)
- A kind of 1. mine coal spontaneous combustion characteristic information high density network monitoring and warning system, it is characterised in that：Including multiple more ginsengs Number wireless sensor node and multiple wireless monitor base stations；Multiparameter wireless sensor node includes energy supply module, sensing Device module, signal conditioning circuit, the first single-chip microcomputer, the first wireless self-networking module, infrared remote control module, Miniature negative pressure pump mould Block, 485 modules, sound and light alarm module and explosion-resistant enclosure；Minitype negative pressure pump module provides gas for multiparameter wireless sensor node Required sample gas is surveyed in physical examination, and infrared remote control module is used for the calibration of multiparameter wireless sensor node, and energy supply module is more Parameter wireless sensor node provides power supply；Infrared remote control module, Minitype negative pressure pump module, 485 modules, sound and light alarm module are equal It is connected with the first single chip communication, the first wireless self-networking module includes wireless communication module；Sensor assembly is adjusted by signal Reason circuit docks with the I/O mouths of the first single-chip microcomputer, and the first single-chip microcomputer and the first wireless self-networking module communicate to connect, and first is wireless MANET module is connected by antenna with wireless monitor base station；Wireless monitor base station includes second singlechip, energy supply module, data memory module, 485 modules, RJ45 modules, the Two wireless self-networking modules, touch-screen and explosion-resistant enclosure；Energy supply module provides power supply for wireless monitor base station, and second is wireless MANET module is communicated to connect by antenna and the first wireless self-networking module, the second wireless self-networking module and second singlechip Connection, touch-screen, data memory module, 485 modules and RJ45 modules communicate to connect with second singlechip, and second singlechip leads to Cross 485 modules or RJ45 modules to communicate to connect with Flameproof and intrinsically safe ring exchanger, Flameproof and intrinsically safe ring exchanger leads to Cross communications optical cable and upload to ground monitoring center by information is transmitted.
- 2. mine coal spontaneous combustion characteristic information high density network monitoring and warning system according to claim 1, its feature exist In：The sensor assembly of multiparameter wireless sensor node is built-in sensor, and built-in sensor is arranged in air chamber, gas Room is provided with the first fast pneumatic joint and the second fast pneumatic joint, and the first fast pneumatic joint is born by silicone tube with miniature Press pump module is connected, and the second fast pneumatic joint is connected by silicone tube with dust filter unit.
- 3. mine coal spontaneous combustion characteristic information high density network monitoring and warning system according to claim 2, its feature exist In：Sensor assembly include carbon monoxide transducer, oxygen sensor, methane transducer, differential pressure pickup, temperature sensor and Humidity sensor.
- 4. mine coal spontaneous combustion characteristic information high density network monitoring and warning system according to claim 1, its feature exist In：Wireless communication distance≤2000m between adjacent multiparameter wireless sensor node.
- 5. mine coal spontaneous combustion characteristic information high density network monitoring and warning system according to claim 4, its feature exist In：Wireless communication distance≤500m between adjacent multiparameter wireless sensor node.
- 6. mine coal spontaneous combustion characteristic information high density network monitoring and warning system according to claim 1, its feature exist In：Wireless communication distance≤2000m between multiparameter wireless sensor node and wireless monitor base station.
- 7. mine coal spontaneous combustion characteristic information high density network monitoring and warning system according to claim 6, its feature exist In：Wireless communication distance≤500m between multiparameter wireless sensor node and wireless monitor base station.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870007A (en) * | 2017-03-17 | 2017-06-20 | 西安科技大学 | Mine coal spontaneous combustion characteristic information high density network monitoring and warning system |
| CN109184800A (en) * | 2018-10-15 | 2019-01-11 | 西安科技大学 | A kind of coal spontaneous combustion early warning stage division and method for early warning |
| CN109297773A (en) * | 2018-11-16 | 2019-02-01 | 徐州江煤科技有限公司 | A kind of gas automatic negative-pressure sampler |
| CN111076340A (en) * | 2019-12-23 | 2020-04-28 | 深圳市中长成科技有限公司 | Double-pipe ventilation device for limited space operation and working method thereof |
-
2017
- 2017-03-17 CN CN201720262469.1U patent/CN206753656U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870007A (en) * | 2017-03-17 | 2017-06-20 | 西安科技大学 | Mine coal spontaneous combustion characteristic information high density network monitoring and warning system |
| CN106870007B (en) * | 2017-03-17 | 2019-11-15 | 西安科技大学 | Mine coal spontaneous combustion characteristic information high density network monitoring and warning system |
| CN109184800A (en) * | 2018-10-15 | 2019-01-11 | 西安科技大学 | A kind of coal spontaneous combustion early warning stage division and method for early warning |
| CN109184800B (en) * | 2018-10-15 | 2020-05-29 | 西安科技大学 | Coal spontaneous combustion early warning classification method and early warning method |
| CN109297773A (en) * | 2018-11-16 | 2019-02-01 | 徐州江煤科技有限公司 | A kind of gas automatic negative-pressure sampler |
| CN111076340A (en) * | 2019-12-23 | 2020-04-28 | 深圳市中长成科技有限公司 | Double-pipe ventilation device for limited space operation and working method thereof |
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