CN105134296A - Digital mine safety monitoring system - Google Patents
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- CN105134296A CN105134296A CN201510598583.7A CN201510598583A CN105134296A CN 105134296 A CN105134296 A CN 105134296A CN 201510598583 A CN201510598583 A CN 201510598583A CN 105134296 A CN105134296 A CN 105134296A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 117
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 52
- 238000004891 communication Methods 0.000 claims description 39
- 238000005065 mining Methods 0.000 claims description 24
- 238000001914 filtration Methods 0.000 claims description 15
- 230000006870 function Effects 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 11
- 239000003245 coal Substances 0.000 claims description 10
- 238000004146 energy storage Methods 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 230000003595 spectral effect Effects 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 7
- 230000001052 transient effect Effects 0.000 claims description 5
- 239000005955 Ferric phosphate Substances 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 4
- 229940032958 ferric phosphate Drugs 0.000 claims description 4
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 claims description 4
- 229910000399 iron(III) phosphate Inorganic materials 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 238000011982 device technology Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000002452 interceptive effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 230000026676 system process Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013524 data verification Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012804 iterative process Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention discloses a digital mine safety monitoring system which comprises a ground part and an underground part. The ground part comprises a monitoring host used for carrying out real-time displaying, monitoring and scheduling according to monitoring data, and a transmission interface used for transmitting monitoring data provided by the underground part to the monitoring host. The underground part comprises a terminal device used for monitoring the underground environment and equipment operation states, an intrinsic safety type substation used for uploading the monitoring data of the terminal device to the transmission interface, an uninterruptible power supply box used for providing power for the intrinsic safety type substation, the transmission interface and the terminal device, and a lithium ion battery box used for providing power for the transmission interface, the intrinsic safety type substation, the uninterruptible power supply box and the terminal device. By means of the monitoring system, integration of the monitoring data can be achieved, false alarm and electromagnetic interference can be avoided, and thus the reliability of mine safety monitoring is improved.
Description
Technical field
The embodiment of the present invention relates to Mine Monitoring and communication technical field, particularly relates to a kind of digital mining safety monitoring system.
Background technology
" Coal Mine Safety Supervision Bureau of country of State Administration of Quality and Technical Supervision improves the notice of coal mine downhole safety hedging " six Iarge-scale system " about construction " (total No. [2010] 146, the coal dress of safety supervision) requires that monitoring mining monitoring system is improved in construction, " realize the dynamic monitoring of the concentration, temperature, wind speed etc. to underground coal mine methane and carbon monoxide ", and " ensureing that monitored data accurately and reliably ".
The construction that current China's coal-mine builds Mine Monitoring and Control System is popularized all right, achieves functions such as the on-line monitoring of various disaster gas concentration and the control of instrument start-stop such as gas.Although the allomeric function of existing monitoring system is gradually improved, its overall performance is still needed perfect further, and existing monitoring system Problems existing is mainly manifested in: (1) coal mine safety monitoring system network structure poor reliability.Existing monitoring system great majority also adopt master slave communication structure, although the monitoring system of existing optical fiber ring network communication structure, but its branch still adopts primary and secondary structure, message transmission rate is low and redundancy is poor, very easily there is data-transmission interruptions, the interconnected cross complaint of equipment room, the dangerous control fast in region cannot be realized.(2) Monitor Equipment digitized degree is not high.Existing monitoring system sensor mostly adopt analogue transmission technology, can not realize sensor and substation bi-directional transfer of data and duty identification and breakdown judge, cause monitored data poor reliability, error information is difficult to effectively differentiate and correct.(3) monitoring system does not possess open performance.The manufacturer of monitoring system, according to its own protocol transmission data, causes heterogeneous system to access, and each system has self transmission cable, causes underground cable too much, adds fault probability.(4) coal mine safety monitoring system electromagnetism interference is poor.Downhole electromagnetic bad environments, Monitor Equipment is often subject to strong electromagnetic, and watch-dog does not generally possess anti-electromagnetic interference capability, very easily makes data corruption, often produces and emits large number, false alarm, wrong diagnosis electrical phenomena, even cause systemic breakdown.
Summary of the invention
The invention provides a kind of digital mine safety monitoring system, realize the integrality of monitor data, avoid false alarm and electromagnetic interference, thus improve the reliability of mine safety monitoring.
Embodiments provide a kind of digital mine safety monitoring system, comprising: aboveground part and underground part, wherein:
Described aboveground part, comprises monitoring host computer and coffret, wherein: described monitoring host computer is used for showing in real time according to monitor data, monitor and dispatching; Described coffret, sets up communication by RS232 mode and monitoring host computer, for the monitor data provided to monitoring host computer transmission underground part;
Described underground part, comprise terminal device, at least one intrinsic safety type substation, uninterrupted power source case and lithium ion battery case, wherein: described terminal device, for monitoring subsurface environment and equipment operation condition, and set up communication by number bus mode and described intrinsic safety type substation and realize data and transmit; Described intrinsic safety type substation, sets up communication by number bus mode and described coffret, for uploading the monitor data of described terminal device to described coffret; Described uninterrupted power source case is mine explosion-suppression and intrinsic safety type, for powering to described intrinsic safety type substation, coffret and terminal device; Described lithium ion battery case, for described coffret, intrinsic safety type substation, uninterrupted power source case and power terminal equipment.
Further; also comprise: emi protection device; be installed on described coffret, the power import of intrinsic safety type substation and signal input port; and the power import of uninterrupted power source case and terminal device; described emi protection device comprises: carry out discharge tube, common mode choke coil, transient voltage suppressor array and energy-storage module, during for protecting mining, the impulse train of described coffret, intrinsic safety type substation, uninterrupted power source case and terminal device is disturbed, surge interference, electromagnetic interference and electrostatic interference.
Further, described energy-storage module is arranged at uninterrupted power source case exit, comprises inductance and storage capacitor, for when impulse train interference, surge interference produce, the electric current that interference produces is carried out restriction and avoids because safety protection causes power-off.
Further, data/address bus mode when communication set up by described intrinsic safety type substation and described coffret and terminal device is controller area network bus mode.
Further, the CAN2.0B communications protocol of standard is adopted to set up communication between described intrinsic safety type substation and terminal device, the check code of CAN2.0B protocol data is utilized to judge whether to there is data interference source, the data that there is interference source are given up, and utilize the mode of filtering to carry out giving up data reconstruction, the data of giving up after normal data and reconstruct are transmitted.
Further, described terminal device is digital sensor, comprising: methane transducer, carbon monoxide transducer and mining start-stop sensor, environmental data during for obtaining underground work and equipment operating data; Meanwhile, described digital sensor all has memory, for cannot with described intrinsic safety type substation set up communicate time, record monitor data also stores.
Further, described methane transducer is spectral absorption formula methane transducer, and the on-line continuous for underground coal mine Methane in Air concentration is measured;
Wherein, described spectral absorption formula methane transducer judges the concentration of tested methane in environment by the absorbed power of detection laser light intensity, and is shown based on photoelectric device technology and be sent to described intrinsic safety type substation in Information Monitoring this locality.
Further, described uninterrupted power source case, comprising:
Intrinsic safety output unit, has multichannel 22V/800mA independence intrinsic safety output function, for the power supply to described intrinsic safety type substation, coffret and terminal device;
PMU, has power management function, and the intrinsic safety cutting off designated module by intrinsic safety type substation for host computer exports;
CAN interface, for powering information to host computer transmission battery electric quantity and each road by intrinsic safety type substation in real time;
Liquid crystal display, for showing the power supply information that each road intrinsic safety exports in real time;
Backup battery unit, for being system module continued power during AC dump.
Further, described lithium ion battery case is the series connection of 8 joint 60AH ferric phosphate lithium cell groups, export a road and exchange AC127V, full-load power is 300W, for being described coffret, intrinsic safety type substation, mine explosion-suppression and intrinsic safety type uninterrupted power source case and power terminal equipment.
Further, all devices that described aboveground part and underground part comprise all has fault self-identifying, self-diagnostic function.
The digital mine safety monitoring system of the one that the embodiment of the present invention provides, first by spectral absorption formula methane transducer, carbon monoxide transducer, mining start-stop sensor terminal device acquisition monitoring data message, secondly the communication between terminal device and intrinsic safety type substation, between intrinsic safety type substation and coffret is set up based on CAN2.0B agreement, then set up communication by coffret based on RS232 mode and monitoring host computer, realize the real-time display of mine operation, monitoring and scheduling eventually through monitoring host computer according to monitor data.In embodiments of the present invention, utilize the feature of CAN2.0B agreement, realize filtering and the reconstruct of improper data error, reduce error, ensure that the integrality of monitor data, avoid false alarm; The simultaneously digital mine safety monitoring system that provides of the embodiment of the present invention; the power import of emi protection unit protection intrinsic safety type substation, uninterrupted power source case, terminal device and signal is also utilized not to damage because of electromagnetic interference; and utilize uninterrupted power source case carry out conventional electron and utilize lithium ion battery case as standby electric power; ensure the stability that monitoring system is powered, improve the reliability of mine safety monitoring further.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of digital mine safety monitoring system in the embodiment of the present invention one;
Fig. 2 is the structural representation of a kind of digital mine safety monitoring system in the embodiment of the present invention two;
Fig. 3 is the flow chart of digital mine safety monitoring system process interfering data in the embodiment of the present invention three.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, illustrate only part related to the present invention in accompanying drawing but not entire infrastructure.
Embodiment one
The structural representation of a kind of digital mine safety monitoring system that Fig. 1 provides for the embodiment of the present invention one, this system comprises: aboveground part 11 and underground part 12, wherein:
Aboveground part 11, comprises monitoring host computer 111 and coffret 112, wherein: monitoring host computer 111 is for showing in real time according to monitor data, monitor and dispatching; Coffret 112, sets up communication by RS232 mode and monitoring host computer 111, for transmitting the monitor data that underground part 12 provides to monitoring host computer 111;
Underground part 12, comprise terminal device 121, at least one intrinsic safety type substation 122, uninterrupted power source case 123 and lithium ion battery case 124, wherein: terminal device 121, for monitoring subsurface environment and equipment operation condition, and set up communication by number bus mode and intrinsic safety type substation 122 and realize data and transmit; Intrinsic safety type substation 122, sets up communication by number bus mode and coffret 112, for uploading the monitor data of terminal device 121 to coffret 112; Uninterrupted power source case 123 is mine explosion-suppression and intrinsic safety type, for powering to intrinsic safety type substation 122, coffret 112 and terminal device 121; Lithium ion battery case 124, for powering to coffret 112, intrinsic safety type substation 122, uninterrupted power source case 123 and terminal device 121.
In the present embodiment, monitoring host computer 111 specifically can be used as the monitor terminal of monitoring system, by being configured in the monitoring software of monitoring host computer 111 li, carries out in real time showing, monitor and dispatching according to monitor data.The monitor data of monitoring host computer 111 obtains from coffret 112, coffret 112 sets up communication by the intrinsic safety type substation 122 of number bus and underground part 12, obtain related data during underground work, then communication is set up by RS232 mode and monitoring host computer 111, transmission associated monitoring data.
In the present embodiment, described RS232 mode is one of communication interface of computer, by Electronic Industries Association (ElectronicIndustriesAssociation, EIA) the asynchronous transmission standard interface formulated, usual RS-232 interface occurs with 9 pins (DB-9) or the kenel of 25 pins (DB-25).
In the underground part 12 shown in Fig. 1, terminal device 121 is for monitoring subsurface environment and equipment operation condition, and set up communication by number bus mode and intrinsic safety type substation 122, carry out the transmission of monitored data, by intrinsic safety type substation 122, data terminal device 121 can monitored are uploaded to monitoring host computer 111 by coffret 112, thus realize Based Intelligent Control colliery being run to on-site terminal equipment 121.
In the present embodiment, monitoring system is powered to intrinsic safety type substation 122, coffret 112 and terminal device 121 by uninterrupted power source case 123, thus ensures the normal work of monitoring system.Concrete, uninterrupted power source case 123 is mine explosion-suppression and intrinsic safety type, described mine explosion-suppression and intrinsic safety type uninterrupted power source case mainly adopts the switching dc voltage-stabilized power supply of high integrated digital circuit module, have that high, the superpower intrinsic safety load capacity of power supply delivery efficiency, input voltage allowable fluctuation range are large, by force, completely independently export can the feature such as arbitrary disposition single channel or multiple-channel output, three tunnels for associate device secure accessing ability, be widely used in, in coal mining, powering to relevant device.Meanwhile, the monitoring system of the present embodiment is also configured with lithium ion battery case 124, also can be coffret 112, intrinsic safety type substation 122, uninterrupted power source case 123 and terminal device 121 and powers, can be used as the standby electric power of monitoring system during emergency case.
Further, data/address bus mode when communication set up by intrinsic safety type substation 122 and coffret 112 and terminal device 121 is controller area network bus mode.
Controller local area network (ControllerAreaNetwork, CAN) bus, it is the serial communication network of ISO International standardization, belong to the category of fieldbus, effectively can support distributed AC servo system or control in real time, general, in the controls, by the data type that CAN can communicate between unified modules, thus reliability and the safety of intermodule communication transmission data can be ensured.Exemplary, the present embodiment sets up the communication between intrinsic safety type substation 122 and terminal device 121 and coffret 112 by CAN mode, and then ensures the reliability transmission of monitor data.
Further, the CAN2.0B communications protocol of standard is adopted to set up communication between intrinsic safety type substation 122 and terminal device 121, the check code of CAN2.0B protocol data is utilized to judge whether to there is data interference source, the data that there is interference source are given up, and utilize the mode of filtering to carry out giving up data reconstruction, the data of giving up after normal data and reconstruct are transmitted.
Concrete, in the present embodiment, the CAN2.0B communications protocol of standard is adopted between intrinsic safety type substation 122 and terminal device 121, carry out complete digital signal transmission, can free exchange data, and number bus CAN has multiple data verification scheme, the check code of CAN2.0B protocol data is utilized to judge whether to there is data interference source, the data that there is interference source can be given up, and utilize the mode of filtering to carry out giving up data reconstruction, can realize the filtering of improper data error and reconstruct, guarantee monitor data integrality, avoid false alarm.
Further, terminal device 121 is digital sensor, comprising: methane transducer, carbon monoxide transducer and mining start-stop sensor, environmental data during for obtaining underground work and equipment operating data; Meanwhile, described digital sensor all has memory, for cannot with described intrinsic safety type substation 122 set up communicate time, record monitor data also stores.
Concrete, in the present embodiment, terminal device 121 can be methane transducer, carbon monoxide transducer and mining start-stop sensor, can be used for the environmental data such as gas density, carbonomonoxide concentration under acquisition mine and obtains the equipment operating datas such as mine car start-stop; Simultaneously, methane transducer, carbon monoxide transducer and mining start-stop sensor are also provided with memory, three-way handshake agreement can be utilized to judge whether to set up communication with intrinsic safety type substation 122, cannot with intrinsic safety type substation 122 set up communicate time, record monitor data also stores.
Further, methane transducer is spectral absorption formula methane transducer, and the on-line continuous for underground coal mine Methane in Air concentration is measured; Wherein, spectral absorption formula methane transducer judges the concentration of tested methane in environment by the absorbed power of detection laser light intensity, and is shown based on photoelectric device technology and be sent to intrinsic safety type substation 122 in Information Monitoring this locality.
Concrete, in the present embodiment, spectral absorption formula methane transducer utilizes methane gas to have adsorbing principle for the laser of specific wavelength, the concentration of tested methane in environment is judged by the absorbed power of detection laser light intensity, and by photoelectric device, methane concentration signal is gathered, processed, Information Monitoring this locality is shown and is sent to intrinsic safety type substation 122.
Further, all devices that described aboveground part 11 and underground part 12 comprise all has fault self-identifying, self-diagnostic function.
Concrete, in the monitoring of the present embodiment, monitoring host computer 111, coffret 112, terminal device 121, intrinsic safety type substation 122, uninterrupted power source case 123 and lithium ion battery case 124, all possess fault self-identifying, self-diagnostic function, ensure that the intellectuality of monitoring system.And whole monitoring system adopts many main concurrent communication modes, each intrinsic safety type substation 122 node is as accident, all can be used as main frame and initiatively send data earthward, on the one hand, ensure that the state change of each sensor in down-hole can be sent to ground in 2 to 3 seconds, compared with Industry code requirements polling period 30 seconds, the monitoring system that the present embodiment is carried drastically increases real-time in monitor procedure and safety; On the other hand, based on multi-master communication technology, Real Data Exchangs can be carried out and without the need to host computer intervention between underground substation, therefore, strange land power-off time between different substation can foreshorten in 5 seconds, compared with two polling periods 60 seconds of Industry code requirements, embody real-time and the safety of the monitoring system that the present embodiment is proposed further.
The digital mine safety monitoring system of the one that the embodiment of the present invention one provides, utilizes many communication structures of underground part equipment, greatly improves system response time, ensure that real-time and the safety of monitoring system; Utilize uninterrupted power source case to power supply that is aboveground and underground part relevant device, and by lithium ion battery case in support power supply be the power supply of coffret, intrinsic safety type substation, uninterrupted power source case, terminal device, ensured the stability that monitoring system is powered and reliability; Utilize system all devices to have the feature of self-identifying, self-diagnostic function simultaneously, achieve the intellectuality of monitoring system.
Embodiment two
Fig. 2 is the structural representation of a kind of digital mine safety monitoring system of the embodiment of the present invention two; the embodiment of the present invention two is the optimization of above-described embodiment one; the digital mine safety monitoring system of the one that the embodiment of the present invention two provides; except the appliance arrangement comprised in aboveground part described in embodiment one and underground part, also comprise: emi protection device 23.
Wherein, emi protection device 23 is installed on coffret 212, the power import of intrinsic safety type substation 222 and signal input port; and the power import of uninterrupted power source case 223 and terminal device 221; emi protection device 23 comprises: carry out discharge tube, common mode choke coil, transient voltage suppressor array and energy-storage module, during for protecting mining, the impulse train of described coffret 212, intrinsic safety type substation 222, uninterrupted power source case 223 and terminal device 221 is disturbed, surge interference, electromagnetic interference and electrostatic interference.
In the present embodiment; as shown in Figure 2; add emi protection device 23 at the coffret 212 of monitoring system and the power import of intrinsic safety type substation 222 and signal input port, add battery interference protection device 23 at the power import of uninterrupted power source case 223 and terminal device 221 simultaneously.The route of emi protection device 23 arranges and is divided into the two kinds: first interference protection route 231, be arranged at the power import of monitoring system relevant device, second interference protection route 232, be arranged at the signal input port place of monitoring system relevant device, concrete, described first interference protection route 231 and the second interference protection route 232 arrange all for coal-winning machine, conveyer, electric locomotive, feeding switch, the impulse train interference that transformer etc. cause, surge disturbs, the electromagnetic interference that radio communication base station and high-tension apparatus work cause and the electrostatic interference that equipment regular maintenance causes are protected, the corresponding equipment of the protects the monitoring system is in operation and does not damage because of above-mentioned interference.
Further, described energy-storage module is arranged at uninterrupted power source case 223 exit, comprises inductance and storage capacitor, for when impulse train interference, surge interference produce, the electric current that interference produces is carried out restriction and avoids because safety protection causes power-off.
Concrete, emi protection device 23 comprises and carries out discharge tube, common mode choke coil, transient voltage suppressor array, energy-storage module.Wherein, discharge tube is carried out described in emi protection device 23 for carrying out high voltage protective; Described common mode choke is used for the electromagnetic interference signal of filtering common mode; Described transient voltage suppressor (TransientVoltageSuppressor, TVS) array is for preventing microprocessor or single-chip microcomputer because of the pulse of moment, as the surge current of static discharge effect, AC power and the noise of Switching Power Supply cause malfunctioning; Described energy-storage module comprises inductance and storage capacitor, and when impulse train interference, surge interference produce, current limit interference produced by energy-storage module, at below 800mA, can be avoided in mining process because safety protection causes power-off.
Further, uninterrupted power source case 223, comprising: intrinsic safety output unit, has multichannel 22V/800mA independence intrinsic safety output function, for the power supply to described intrinsic safety type substation 222, coffret 212 and terminal device 221; PMU, has power management function, and the intrinsic safety cutting off designated module by intrinsic safety type substation 222 for host computer exports; CAN interface, for powering information to host computer transmission battery electric quantity and each road by intrinsic safety type substation 222 in real time; Liquid crystal display, for showing the power supply information that each road intrinsic safety exports in real time; Backup battery unit, for being system module continued power during AC dump.
Concrete, in the present embodiment, uninterrupted power source case 223 is mine explosion-suppression and intrinsic safety type, for powering to intrinsic safety type substation 222, coffret 212 and terminal device 221; Wherein, concrete power supply unit is intrinsic safety output unit, exemplary, and intrinsic safety output unit is set to 8 road 22V/800mA independence intrinsic safety and exports, for the relevant device in monitoring system provides sufficient power supply; Uninterrupted power source case 223 is managed by the output of PMU to power supply, general, the intrinsic safety that host computer cuts off designated module by intrinsic safety type substation 222 exports, described host computer specifically refers to the computer that directly can send manipulation order, exemplary, the host computer in the present embodiment can refer to the monitoring host computer 211 in monitoring system; Simultaneously, uninterrupted power source case 223 can be powered information to host computer transmission battery electric quantity and each road by intrinsic safety type substation 222 in real time based on CAN interface, preferably, described battery electric quantity and each road information of powering sets up communication by intrinsic safety type substation 222 and coffret 212 based on CAN2.0B communications protocol, realizes the transmission to monitoring host computer 211; The power supply information of each road intrinsic safety output finally can be shown in real time at the liquid crystal display of uninterrupted power source case 223, and when AC dump, can based on backup battery unit continued power, general can be Monitor Equipment continued power 4 hours.
Further, lithium ion battery case 224 is the series connection of 8 joint 60AH ferric phosphate lithium cell groups, and export a road and exchange AC127V, full-load power is 300W, for powering for coffret 212, intrinsic safety type substation 222, uninterrupted power source case 223 and terminal device 221.
In the present embodiment, lithium ion battery case 224 is specifically as relevant device standby electric power in monitoring system, when there is emergency situations in uninterrupted power source case 223, can by lithium ion battery case 224 for associated monitoring equipment be powered, exemplary, lithium ion battery case 224 is in series by 8 joint 60AH ferric phosphate lithium cell groups.
The digital mine safety monitoring system of the one that the embodiment of the present invention two provides; emi protection device is added at the power import of monitoring system relevant device and/or signal input port; protected by emi protection device paired pulses group interference, surge interference, electromagnetic interference and electrostatic interference; enhance electromagnetism interference protective capability, thus make the antisurge of monitoring system, requirement that the ability of antistatic and anti-impulse train reaches GB 3 grades.
Embodiment three
Fig. 3 is the flow chart of digital mine safety monitoring system process interfering data in the embodiment of the present invention three.The embodiment of the present invention three proposes a kind of method that preferred digital mine safety monitoring system processes interfering data.
Exemplary, the digital mine safety monitoring system that the embodiment of the present invention proposes, comprises the flow process that interfering data processes: differentiate, give up, reconstruct three and walk greatly, its specific implementation process is as follows:
The current monitor data that step 301, intrinsic safety type substation receiving terminal apparatus send.
Concrete, described intrinsic safety type substation passes through CAN mode and terminal device management communication, the current monitor data that receiving terminal apparatus sends.
Step 302, judge whether current monitor data exist data interference source according to the check code of CAN2.0B protocol data, if exist, perform step 303; If do not exist, perform step 304.
Concrete, utilize the check code of CAN2.0B protocol data to judge whether to there is data interference source when receiving current monitor data, described interference source specifically can refer to produce the data of the transmitting of interference, radiation or induction.The check code of described CAN2.0B protocol data is based on the verification to data message.
Step 303, deletion current monitor data, start the restructing operation program of current monitor data, obtains the rear monitor data of reconstruct.
Concrete, as follows to the implementation of the restructing operation of current reception data:
1) read send the record data in terminal device 10 moment before this of current data, carry out Kalman filtering, filtering is according to following formula:
State equation:
s(t+T)＝As(t)+w(t)(1)
Measure equation:
z(t)＝Gs(t)+v(t)(2)
In formula: s (t) represents the state variable of t; Z (t) represents the measurement vector of t; A and G is respectively state-transition matrix and calculation matrix; W (t) and v (t) is process noise and the measure error of t respectively, and T represents the sense cycle of terminal device.
The iterative process of Kalman filtering is as follows:
In formula:
with
represent that state variable is in the predicted value of t and estimate respectively;
with
represent t prediction error and estimation error covariance matrix respectively; Q and R is the covariance matrix of w (t) and v (t) respectively; e
tmeasure new breath value corresponding to vectorial z (t); K
tit is the kalman gain of t.
Then, record 9 Kalman filtering gains, be recorded as K successively
t-9T, K
t-8T, K
t-7T, K
t-6T, K
t-5T, K
t-4T, K
t-3T, K
t-2T, K
t-T;
2) 9 Kalman filtering gains are utilized, this kalman gain of weight estimation:
3) the kalman gain K of prediction is utilized
t, carry out Kalman filtering, predict the measured value in this moment, finally realize the reconstruct of current data based on predicted value.
Step 304, record and the monitor data after storing current monitor data or reconstruct, and be sent to aboveground monitoring host computer.
A kind of preferred digital mine safety monitoring system that the embodiment of the present invention three proposes utilizes the check code of CAN2.0B protocol data to judge whether to there is data interference source to the method that interfering data processes, the data that there is interference source are given up, and utilize the mode of filtering to carry out giving up data reconstruction, realize filtering and the reconstruct of improper data error, ensure that the integrality of monitor data, avoid the false alarm of monitoring system, thus improve the reliability of mine safety monitoring.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (10)
1. a digital mining safety monitoring system, comprises aboveground part and underground part, it is characterized in that,
Described aboveground part, comprises monitoring host computer and coffret, wherein: described monitoring host computer is used for showing in real time according to monitor data, monitor and dispatching; Described coffret, sets up communication by RS232 mode and monitoring host computer, for the monitor data provided to monitoring host computer transmission underground part;
Described underground part, comprise terminal device, at least one intrinsic safety type substation, uninterrupted power source case and lithium ion battery case, wherein: described terminal device, for monitoring subsurface environment and equipment operation condition, and set up communication by number bus mode and described intrinsic safety type substation and realize data and transmit; Described intrinsic safety type substation, sets up communication by number bus mode and described coffret, for uploading the monitor data of described terminal device to described coffret; Described uninterrupted power source case is mine explosion-suppression and intrinsic safety type, for powering to described intrinsic safety type substation, coffret and terminal device; Described lithium ion battery case, for described coffret, intrinsic safety type substation, uninterrupted power source case and power terminal equipment.
2. a kind of digital mining safety monitoring system according to claim 1, is characterized in that, also comprise:
Emi protection device; be installed on described coffret, the power import of intrinsic safety type substation and signal input port; and the power import of uninterrupted power source case and terminal device; described emi protection device comprises: carry out discharge tube, common mode choke coil, transient voltage suppressor array and energy-storage module, during for protecting mining, the impulse train of described coffret, intrinsic safety type substation, uninterrupted power source case and terminal device is disturbed, surge interference, electromagnetic interference and electrostatic interference.
3. a kind of digital mining safety monitoring system according to claim 2; it is characterized in that; described energy-storage module is arranged at uninterrupted power source case exit; comprise inductance and storage capacitor; for when impulse train interference, surge interference produce, the electric current that interference produces is carried out restriction and avoids because safety protection causes power-off.
4. a kind of digital mining safety monitoring system according to claim 2, is characterized in that, data/address bus mode when communication set up by described intrinsic safety type substation and described coffret and terminal device is controller area network bus mode.
5. a kind of digital mining safety monitoring system according to claim 4, it is characterized in that, the CAN2.0B communications protocol of standard is adopted to set up communication between described intrinsic safety type substation and terminal device, the check code of CAN2.0B protocol data is utilized to judge whether to there is data interference source, the data that there is interference source are given up, and utilize the mode of filtering to carry out giving up data reconstruction, the data of giving up after normal data and reconstruct are transmitted.
6. a kind of digital mining safety monitoring system according to claim 2, it is characterized in that, described terminal device is digital sensor, comprising: methane transducer, carbon monoxide transducer and mining start-stop sensor, environmental data during for obtaining underground work and equipment operating data; Meanwhile, described digital sensor all has memory, for cannot with described intrinsic safety type substation set up communicate time, record monitor data also stores.
7. a kind of digital mining safety monitoring system according to claim 6, is characterized in that,
Described methane transducer is spectral absorption formula methane transducer, and the on-line continuous for underground coal mine Methane in Air concentration is measured;
Wherein, described spectral absorption formula methane transducer judges the concentration of tested methane in environment by the absorbed power of detection laser light intensity, and is shown based on photoelectric device technology and be sent to described intrinsic safety type substation in Information Monitoring this locality.
8. a kind of digital mining safety monitoring system according to claim 2, is characterized in that, described uninterrupted power source case, comprising:
Intrinsic safety output unit, has multichannel 22V/800mA independence intrinsic safety output function, for the power supply to described intrinsic safety type substation, coffret and terminal device;
PMU, has power management function, and the intrinsic safety cutting off designated module by intrinsic safety type substation for host computer exports;
CAN interface, for powering information to host computer transmission battery electric quantity and each road by intrinsic safety type substation in real time;
Liquid crystal display, for showing the power supply information that each road intrinsic safety exports in real time;
Backup battery unit, for being system module continued power during AC dump.
9. a kind of digital mining safety monitoring system according to claim 2, it is characterized in that, described lithium ion battery case is the series connection of 8 joint 60AH ferric phosphate lithium cell groups, export a road and exchange AC127V, full-load power is 300W, for being described coffret, intrinsic safety type substation, mine explosion-suppression and intrinsic safety type uninterrupted power source case and power terminal equipment.
10. a kind of digital mining safety monitoring system according to claim 2, is characterized in that, all devices that described aboveground part and underground part comprise all has fault self-identifying, self-diagnostic function.
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