CN105804795A - Wireless monitoring system for underground coal separation chamber surrounding rock based on mine breeze energy harvesting - Google Patents

Wireless monitoring system for underground coal separation chamber surrounding rock based on mine breeze energy harvesting Download PDF

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Publication number
CN105804795A
CN105804795A CN201610233512.1A CN201610233512A CN105804795A CN 105804795 A CN105804795 A CN 105804795A CN 201610233512 A CN201610233512 A CN 201610233512A CN 105804795 A CN105804795 A CN 105804795A
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China
Prior art keywords
energy
chamber
surrounding rock
wind
mine
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CN201610233512.1A
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Chinese (zh)
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CN105804795B (en
Inventor
薛晓
朱清慧
郑扬冰
张燕
董浩斌
徐志强
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Nanyang Institute of Technology
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Nanyang Institute of Technology
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/911—Mounting on supporting structures or systems on a stationary structure already existing for a prior purpose
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Abstract

The invention discloses a wireless monitoring system for underground coal separation chamber surrounding rock based on mine breeze energy harvesting. The wireless monitoring system comprises a control center, a communication base station, an SINK node and a monitoring terminal which are connected in sequence. The monitoring terminal comprises a displacement sensor, an energy supply unit, a first processor unit and a first communication unit, and the energy supply unit comprises a wind power generation module and an energy management module. Displacement of the underground coal separation equipment chamber surrounding rock can be monitored dynamically, breeze energy existing in the chamber surrounding rock is converted into electric energy through the wind power generation module, the power supply problem of WSN nodes is solved, wireless monitoring of an underground coal separation equipment chamber is realized truly, no circuit needs to be arranged in the chamber, damage to stability of the chamber and a passage by circuit slots is avoided, the chamber environment is not affected, and normal work in the chamber can be conducted conveniently.

Description

Down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy
Technical field
The present invention relates to down-hole coal separation surrounding rock of chamber on-line monitoring technique field, be specifically related to a kind of down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy.
Background technology
Coal is the topmost primary energy of China, along with coal mining discharge spoil by the washing of aboveground coal preparation plant, but aboveground washing adds freight charges and the discharge refuse expense of spoil, the hoisting power anxiety and the ton coal profit that cause mine decline, simultaneously, spoil discharge land occupation, causes the pollution of ground environment, is unfavorable for the improvement of living environment.And down-hole coal separation can directly solve the problems referred to above, it is achieved that underground separation of raw coal and filling integration, reduce raw coal transportation and ton coal energy consumption.At present, down-hole coal preparation plant has obtained in China and has successfully built and run, it is achieved that lasting exploit.
Spoil therein can be discharged by cleaning unit by down-hole coal preparation plant before raw coal gug, it is directly used in down-hole whitewashing or goaf backfilling material, achieve underground separation of raw coal and filling integration, not only decrease ground to take up an area, reduce again the pollution to environment, produce huge economic benefit and social benefit.Along with deepening continuously of lasting exploit theory, down-hole coal preparation technology has boundless application prospect.Mine safety monitoring system is one of core of rock pressure monitoring system, is the important composition part of safety production monitoring of coal mine system.It combines various sensor measurement, wireless and cable communicating technology, data communication technology and data processing technique, underground coal mine country rock is reflected under action of underground the displacement on country rock and the performance in rate of displacement has carried out concrete measurement, and support the comprehensive inquiry to measurement data and the prediction to state of surrounding rock, for surrounding rock of chamber, the daily monitoring of surrounding rock of chamber with safeguard and provide basic data；End distension, crush and lateral wall displacement is all the obvious performance of rock pressure.
Application number a kind of be the disclosure of the invention of 201210416966.4 down-hole coal separation chamber bottom plate on-Line Monitor Device based on optical fiber grating sensing and method, communication optical fiber connects four fiber-optic grating sensors and a fiber-optical grating temperature sensor, four corners of the equipment Foundations that four fiber-optic grating sensors are arranged in around equipment, the incoming end of communication optical fiber or exit connect fiber grating Network Analyzer, and fiber grating Network Analyzer is connected with computer.The size of fiber grating sensor wavelength knots modification is analyzed by fiber grating Network Analyzer, and the STRESS VARIATION being transformed in equipment Foundations each measuring point place, read the stress distribution situation not descending coal separation chamber equipment Foundations in the same time, whether judgment device basis produces, it is achieved the monitoring to coal separation chamber bottom plate.This device can realize the inclination to equipment Foundations and monitor, but the power supply of fiber-optic grating sensor is the problem faced by individual needs, adds the cost of construction, causes that field wiring is easily chaotic, and circuit is excessively complicated.
Application number be 201110369513.6 invention be specially a kind of coal mine downhole country rock slight shock detection method, the problem solving micro seismic monitoring method under the geological conditions lacking of hard roof and hard floor and hard coal seam.Coal mine downhole country rock slight shock detection method, including step have the used equipment of erection monitoring, collect data, Macro or mass analysis monitoring in real time, abnormal parameter situation be analyzed, impulsion pressure contingent time and position are carried out early warning.The present invention is possible not only to the impulsion pressure difficult problem solving to run in coal mining, it is ensured that smooth, the safety of pit mining carry out, and also will play active and effective directive function for the impulsion pressure preventing and controlling in recovery process from now on.But this invention is also need to lay a large amount of circuit, has a strong impact on normal construction.
Solve this problem to need down-hole surrounding rock of chamber is carried out wireless monitor, current wireless sensor network (WSN) technology has played important effect in multiple fields, but wireless sensor network is not smooth in the application of underground coal mine, a lot of researchs remain in laboratory stage, its main cause is energy resource supply problem, is mainly manifested in following two aspect: (1) wireless senser power supply mode.Battery is used can wireless senser to be powered, but the restricted lifetime of battery, use traditional wired power supply mode then to lose the motility of wireless senser, and considerably increase cost；(2) wireless sensor network node is big to the demand of energy.Owing to node is responsible for the task of data acquisition and transmission, the power consumption of self is excessive, and required energy is also big, and the energy that now sensor node is limited becomes most important, and when the demand of energy departs from wired power supply time, this is particularly problematic.
Summary of the invention
Problem to be solved by this invention is to provide a kind of down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy, realize the displacement dynamic monitoring to down-hole cleaning unit surrounding rock of chamber, and use wind power generation module that the mild wind energy existed in surrounding rock of chamber is converted to electric energy, solve the power supply Problems existing of WSN node.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy, including the control centre being sequentially connected, communication base station, SINK node and monitoring terminal, described monitoring terminal includes displacement transducer, energy supply unit, first processor unit and the first communication unit, described energy supply unit includes wind power generation module and energy management module, institute's displacement sensors and described first processor unit, first communication unit is sequentially connected with, described energy supply unit and institute's displacement sensors, first processor unit, first communication unit connects.
Further, described first processor unit includes singlechip chip.
Further, described SINK node includes the second processor unit and second communication unit, described first communication unit and described second communication unit wirelessly transmit data, described first communication unit and described second communication unit include Zigbee module, and described second communication unit also includes a RS485 communication interface.
Further, described communication base station includes communication computer, the 2nd RS485 communication interface and the first fibre optic modem, described communication computer is carried out data transmission by the 2nd RS485 communication interface and described SINK node, and described communication computer is communicated with described control centre by the first fibre optic modem.
Further, described control centre includes monitoring host computer, the second fibre optic modem, display device and database server.
Further, described energy management module includes the ac-to-dc rectifier being sequentially connected with, MPPT booster transformer, energy storage units and DC-to-dc rectifier transformer, described DC-to-dc rectifier transformer and described first processor unit, first communication unit and displacement transducer connect, described ac-to-dc rectifier is connected with voltage detecting circuit and adc circuit by electric current, described adc circuit also with first processor unit, first communication unit and displacement transducer connect, described first processor unit is connected with described MPPT booster transformer by PWM generative circuit.
Further, described wind power generation module includes one or both of vertical axis aerogenerator and horizontal axis wind-driven generator.
Further, described vertical axis aerogenerator is arranged on surrounding rock of chamber two and helps, corresponding described vertical axis aerogenerator wind energy reinforcing mechanisms I, described wind energy reinforcing mechanisms I includes surrounding rock of chamber two and helps the hollow cover body I of the prismatic table shape arranged, and described hollow cover body I air outlet aligns with the blade of described vertical axis aerogenerator side.
Further, described horizontal axis wind-driven generator is arranged on surrounding rock of chamber top, corresponding described horizontal axis wind-driven generator arranges wind energy reinforcing mechanisms II, described wind energy reinforcing mechanisms II includes the hollow cover body II of the prismatic table shape that surrounding rock of chamber top is arranged, the air outlet of described hollow cover body II arranges wind pipe, arranges described horizontal axis wind-driven generator in described wind pipe.
The invention provides a kind of down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy, control centre is positioned at aboveground, communication base station, SINK node and monitoring terminal are positioned at down-hole, monitoring terminal is that surrounding rock displacement situation in down-hole coal preparation plant equipment chamber is monitored, and the data monitored are sent to SINK node, because the quantity of down-hole chamber is more, and the situation of down-hole is also complex, so adopting SINK node that the monitoring terminal in certain area carries out data receiver and order control, SINK node is connected with communication base station, communication base station is connected with control centre, monitoring information in the chamber of down-hole collects to control centre the most at last, realize the long-range monitoring of surrounding rock displacement situation in the chamber of down-hole.
Surrounding rock displacement situation in the chamber of down-hole being monitored by displacement transducer of monitoring terminal, displacement transducer can adopt magnetostrictive displacement sensor, accurately detect the absolute position of movable magnet ring by internal contactless observation and control technology and measure the actual displacement value of detected product, owing to directly contacting as determining that the movable magnet ring of position there is no with sensing element, therefore this sensor can be applied in severe industrial environment, the dust etc. that will not be subject to down-hole cleaning unit chamber disturbs, and monitoring effect is better.Because down-hole coal preparation plant needs to ventilate, and produced wind energy of ventilating also is exist in the moment in down-hole, by utilizing the mild wind resource of down-hole, by wind power generation module, wind energy is converted into mechanical energy, mechanical energy is then converted to electric energy, energy resource not intermittently can be provided, energy source for radio sensing network provides reliable and stable basis, it is capable of the sensor by extending various dissimilar purposes in the WSN node of down-hole, mining safety monitoring has boundless application prospect.Changed by the collection of wind energy, each monitoring terminal can independent of whole monitoring system, need not be powered by external equipment, and rely on wirelessly with the communication of SINK node, completely without carrying out wiring to transmit information or electric energy in whole chamber, the environment of chamber is not had any impact.Energy management module is connected with wind power generation module, and the alternating current that wind-force conversion is come carries out constant current constant voltage and stores, then voltage is changed, and is powered for displacement transducer, first processor unit, the first communication unit, it is ensured that stable equipment operation.
The present invention can realize the displacement dynamic monitoring to down-hole cleaning unit surrounding rock of chamber, and use wind power generation module that the mild wind energy existed in surrounding rock of chamber is converted to electric energy, solve the power supply Problems existing of WSN node, it is truly realized down-hole cleaning unit chamber wireless monitor, it not be used in any circuit of chamber arrangement, avoid the line slot destruction to chamber and stability of channel, chamber environment is not impacted, facilitate the normal operation in chamber.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the present invention system construction drawing based on the down-hole coal separation surrounding rock of chamber wireless monitor system of mine mild wind collection of energy；
Fig. 2 is the system construction drawing of energy supply unit of the present invention；
Fig. 3 is the structural representation of surrounding rock of chamber of the present invention；
Fig. 4 is the structural representation of vertical axis aerogenerator of the present invention；
Fig. 5 is the structural representation of horizontal axis wind-driven generator of the present invention；
Fig. 6 is the structural representation that displacement transducer of the present invention arranges orientation.
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 6, technical solution of the present invention being shown further, detailed description of the invention is as follows:
Embodiment one
As shown in figures 1 to 6: present embodiments provide a kind of down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy, including the control centre 1 being sequentially connected, communication base station 2, SINK node 3 and monitoring terminal 4, described monitoring terminal 4 includes displacement transducer 5, energy supply unit 6, first processor unit 7 and the first communication unit 8, described energy supply unit 6 includes wind power generation module 9 and energy management module 10, institute's displacement sensors 5 and described first processor unit 7, first communication unit 8 is sequentially connected with, described energy supply unit 6 and institute's displacement sensors 5, first processor unit 7, first communication unit 8 connects.
The invention provides a kind of down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy, control centre is positioned at aboveground, communication base station, SINK node and monitoring terminal are positioned at down-hole, monitoring terminal is that surrounding rock displacement situation in down-hole coal preparation plant equipment chamber is monitored, and the data monitored are sent to SINK node, because the quantity of down-hole chamber is more, and the situation of down-hole is also complex, so adopting SINK node that the monitoring terminal in certain area carries out data receiver and order control, SINK node is connected with communication base station, communication base station is connected with control centre, monitoring information in the chamber of down-hole collects to control centre the most at last, realize the long-range monitoring of surrounding rock displacement situation in the chamber of down-hole.
Surrounding rock displacement situation in the chamber of down-hole being monitored by displacement transducer of monitoring terminal, displacement transducer can adopt magnetostrictive displacement sensor, accurately detect the absolute position of movable magnet ring by internal contactless observation and control technology and measure the actual displacement value of detected product, owing to directly contacting as determining that the movable magnet ring of position there is no with sensing element, therefore this sensor can be applied in severe industrial environment, the dust etc. that will not be subject to down-hole cleaning unit chamber disturbs, and monitoring effect is better.Displacement transducer is placed according to the different specific aims of chamber monitoring location, during monitoring Change in surrounding rocks, sensor is arranged on chamber two and helps, and is arranged on chamber top, and is arranged on equipment bay by sensor during monitoring floor shifting change during the change of monitoring top.It is preferred to each monitoring terminal includes four displacement transducers, position is the closely end at chamber entrance to hardware edge, four sensors are in same cross section, namely four displacement transducers are arranged on hardware in the vertical section residing for the edge of chamber arrival end, it is successively set on surrounding rock of chamber two to help, top and plant bottom case edge, because the existence of cleaning unit is to the electromagnetic wave propagation obvious effect in the cleaning unit chamber of down-hole, in from chamber porch to the approach area of hardware side, electromagnetic transmission is relatively stable, with the increase of distance and slow-decay.Edge at hardware, cause that radio field intensity strengthens on the contrary to some extent owing to electromagnetic wave produces reflection after running into metal, simultaneously, inhibition due to hardware, make electromagnetic wave along hardware side until decaying in the direction of chamber end acutely, it is ensured that the stability of monitoring terminal transmission wireless signal.
Because down-hole coal preparation plant needs to ventilate, and produced wind energy of ventilating also is exist in the moment in down-hole, by utilizing the mild wind resource of down-hole, by wind power generation module, wind energy is converted into mechanical energy, mechanical energy is then converted to electric energy, energy resource not intermittently can be provided, energy source for radio sensing network provides reliable and stable basis, it is capable of the sensor by extending various dissimilar purposes in the WSN node of down-hole, mining safety monitoring has boundless application prospect.Changed by the collection of wind energy, each monitoring terminal can independent of whole monitoring system, need not be powered by external equipment, and rely on wirelessly with the communication of SINK node, completely without carrying out wiring to transmit information or electric energy in whole chamber, the environment of chamber is not had any impact.Energy management module is connected with wind power generation module, and the alternating current that wind-force conversion is come carries out constant current constant voltage and stores, then voltage is changed, and is powered for displacement transducer, first processor unit, the first communication unit, it is ensured that stable equipment operation.
Described first processor unit 7 includes singlechip chip.Adopt very large scale integration technology having the functions such as the central processor CPU of data-handling capacity, random access memory ram, read only memory ROM, multiple I/O mouth and interruption system, timer/counter, the displacement information that displacement transducer can be monitored processes and controls the first communication unit and sends monitoring information to SINK node, there is the advantage that the little computing of volume is fast, so that the volume of monitoring terminal is only small, chamber structure will not can be damaged when mounted.
Described SINK node 3 includes the second processor unit 11 and second communication unit 12, described first communication unit 8 wirelessly transmits data with described second communication unit 12, described first communication unit 8 and described second communication unit 12 include Zigbee module 13, and described second communication unit 12 also includes a RS485 communication interface 14.Second processing unit of SINK node is that the Monitoring Data to multiple monitoring terminals collects, and data were used a RS485 communication interface send to communication base station.Second processing unit can adopt programmable logic controller (PLC), and SINK node, for the not requirement of volume size, adopts PLC function more powerful, it is ensured that speed during to multiple monitoring terminal information processing.The communication of SINK node and monitoring terminal relies on Zigbee module to realize radio communication, and this module is capable of radio communication, and power consumption is little, cost is low, network capacity is big, and networking capability is relatively strong, is beneficial to the wireless sensor network realized constructed by native system.The connection of SINK node and communication base station relies on RS485 communication interface, it is achieved multiple spot transmits to the data of a bit, it is ensured that data are in the normal transmission of down-hole.If communication base station is distant with SINK node, it is possible to use RS485 turns optical fiber technology and increases its communication context, adapts to different down-hole situations.
Described communication base station 2 includes communication computer the 15, the 2nd RS485 communication interface 16 and the first fibre optic modem 17, described communication computer 15 is carried out data transmission with described SINK node 3 by the 2nd RS485 communication interface 16, and described communication computer 15 is communicated with described control centre 1 by the first fibre optic modem 17.Communication computer can adopt industrial control computer, it is responsible for the data of all monitoring terminals in down-hole are collected and communicated with aboveground control centre, the data volume of its transmission is bigger, therefore optical fiber and control centre is adopted to communicate, guarantee that data transmit accurately and speed, smoothly complete to instruction reception and registration and data summarization, transmission, transmission effect.
Described control centre 1 includes monitoring host computer the 18, second fibre optic modem 19, display device 20 and database server 21.Monitoring host computer adopts industrial control computer, receive the displacement data that transmits of communication base station by the second fibre optic modem and control instruction is sent to communication base station, display device to underground monitoring terminal monitoring to chamber displacement information display, monitoring information is stored by database server.
Embodiment two
As depicted in figs. 1 and 2: the present embodiment additionally provides a kind of down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy, including the control centre 1 being sequentially connected, communication base station 2, SINK node 3 and monitoring terminal 4, described monitoring terminal 4 includes displacement transducer 5, energy supply unit 6, first processor unit 7 and the first communication unit 8, described energy supply unit 6 includes wind power generation module 9 and energy management module 10, institute's displacement sensors 5 and described first processor unit 7, first communication unit 8 is sequentially connected with, described energy supply unit 6 and institute's displacement sensors 5, first processor unit 7, first communication unit 8 connects.
Described energy management module 10 includes the ac-to-dc rectifier 22 being sequentially connected with, MPPT booster transformer 23, energy storage units 24 and DC-to-dc rectifier transformer 25, described DC-to-dc rectifier transformer 25 and described first processor unit 7, first communication unit 8 and displacement transducer 5 connect, described ac-to-dc rectifier 22 is connected with voltage detecting circuit 26 and adc circuit 27 by electric current, described adc circuit 27 also with first processor unit 7, first communication unit 8 and displacement transducer 5 connect, described first processor unit 7 is connected with described MPPT booster transformer 23 by PWM generative circuit 28.
The alternating current that wind power generation module conversion comes by ac-to-dc rectifier and MPPT booster transformer rectification and stores to energy storage units, energy storage units can adopt lithium battery or super capacitor, owing to wind collecting system converting efficiency is non-normally low, the energy collected is less, and MPPT booster transformer maximum power point tracking (MPPT) technology improves the collection of mild wind energy.DC-to-dc rectifier transformer is adjusted by the voltage that energy storage units is exported so that it is meet the use voltage of the first communication unit, first processor unit and displacement transducer.Electric current and voltage detecting circuit power to the first communication unit, first processor unit and displacement transducer either directly through adc circuit on the one hand, detect the electric current after ac-to-dc rectifier rectification and voltage condition on the other hand, and numerical value is sent to first processor unit by analog digital conversion, first processor unit sends PWM waveform control MPPT booster transformer by PWM generative circuit and realizes peak power collection, improves the conversion efficiency of wind energy.
Embodiment three
Such as Fig. 1, Fig. 3, shown in Fig. 4 and Fig. 5: the present embodiment additionally provides a kind of down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy, including the control centre 1 being sequentially connected, communication base station 2, SINK node 3 and monitoring terminal 4, described monitoring terminal 4 includes displacement transducer 5, energy supply unit 6, first processor unit 7 and the first communication unit 8, described energy supply unit 6 includes wind power generation module 9 and energy management module 10, institute's displacement sensors 5 and described first processor unit 7, first communication unit 8 is sequentially connected with, described energy supply unit 6 and institute's displacement sensors 5, first processor unit 7, first communication unit 8 connects.
Described wind power generation module 9 includes one or both of vertical axis aerogenerator 29 and horizontal axis wind-driven generator 30.The collection of site wind is to be realized by the mild wind of circulation in surrounding rock of chamber, and its wind speed is at 1～8m/s, and the enough monitoring terminals of electric energy that conversion comes use.In order to ensure the spaciousness of surrounding rock of chamber, the area that electromotor occupies in a cross section of surrounding rock of chamber can not be excessive, namely the wind energy area obtained is less, therefore in the passage of mild wind energy abundance, adopt a kind of generating therein, generate electricity the insufficient local employing of mild wind energy two kinds, shape according to two kinds of electromotors is placed in the top or two of surrounding rock of chamber and helps, and does not affect normal operation and personnel pass through.
Described vertical axis aerogenerator 29 is arranged on surrounding rock of chamber 31 liang side, corresponding described vertical axis aerogenerator 29 wind energy reinforcing mechanisms I 32, described wind energy reinforcing mechanisms I 32 includes the hollow cover body I 33 of the prismatic table shape that surrounding rock of chamber 31 liang side is arranged, and the air outlet I 34 of described hollow cover body I 33 aligns with the blade 35 of described vertical axis aerogenerator 29 side.Blade and the rotating shaft at center that vertical axis aerogenerator adopts two cross sections to be semi-circular shape support, blade is rotated axle by wind drive and rotates, the area of hollow cover body I opening part is more than the area of air outlet, large-area wind energy can be collected, and wind energy is delivered to the side blade of vertical axis aerogenerator, electromotor is driven, wind collecting is comparatively sufficient, and conversion efficiency is higher, whole device is arranged on surrounding rock of chamber two and helps, and will not the space of passage be impacted.
Described horizontal axis wind-driven generator 30 is arranged on surrounding rock of chamber 31 top, corresponding described horizontal axis wind-driven generator 30 arranges wind energy reinforcing mechanisms II 36, described wind energy reinforcing mechanisms II 36 includes the hollow cover body II 37 of the prismatic table shape that surrounding rock of chamber 31 top is arranged, the air outlet II 38 of described hollow cover body II 37 arranges wind pipe 39, arranges described horizontal axis wind-driven generator 30 in described wind pipe 39.This hollow cover body II is disposed across surrounding rock of chamber top, by the wind energy collecting at top and send in wind pipe, it is achieved the Wind Power Utilization to larger area, then drives horizontal axis wind-driven generator, improves the generated energy under equal wind condition, it is ensured that the supply of electric energy.
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, other amendments that technical scheme is made by those of ordinary skill in the art or equivalent replace, without departing from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of scope of the presently claimed invention.

Claims (9)

1. the down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy, it is characterized in that: include the control centre being sequentially connected, communication base station, SINK node and monitoring terminal, described monitoring terminal includes displacement transducer, energy supply unit, first processor unit and the first communication unit, described energy supply unit includes wind power generation module and energy management module, institute's displacement sensors and described first processor unit, first communication unit is sequentially connected with, described energy supply unit and institute's displacement sensors, first processor unit, first communication unit connects.
2. the down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy as claimed in claim 1, it is characterised in that: described first processor unit includes singlechip chip.
3. the down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy as claimed in claim 1, it is characterized in that: described SINK node includes the second processor unit and second communication unit, described first communication unit and described second communication unit wirelessly transmit data, described first communication unit and described second communication unit include Zigbee module, and described second communication unit also includes a RS485 communication interface.
4. the down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy as claimed in claim 3, it is characterized in that: described communication base station includes communication computer, the 2nd RS485 communication interface and the first fibre optic modem, described communication computer is carried out data transmission by the 2nd RS485 communication interface and described SINK node, and described communication computer is communicated with described control centre by the first fibre optic modem.
5. the down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy as claimed in claim 4, it is characterised in that: described control centre includes monitoring host computer, the second fibre optic modem, display device and database server.
6. the down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy as claimed in claim 1, it is characterized in that: described energy management module includes the ac-to-dc rectifier being sequentially connected with, MPPT booster transformer, energy storage units and DC-to-dc rectifier transformer, described DC-to-dc rectifier transformer and described first processor unit, first communication unit and displacement transducer connect, described ac-to-dc rectifier is connected with voltage detecting circuit and adc circuit by electric current, described adc circuit also with first processor unit, first communication unit and displacement transducer connect, described first processor unit is connected with described MPPT booster transformer by PWM generative circuit.
7. the down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy as claimed in claim 1, it is characterised in that: described wind power generation module includes one or both of vertical axis aerogenerator and horizontal axis wind-driven generator.
8. the down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy as claimed in claim 7, it is characterized in that: described vertical axis aerogenerator is arranged on surrounding rock of chamber two and helps, corresponding described vertical axis aerogenerator wind energy reinforcing mechanisms I, described wind energy reinforcing mechanisms I includes surrounding rock of chamber two and helps the hollow cover body I of the prismatic table shape arranged, and described hollow cover body I air outlet aligns with the blade of described vertical axis aerogenerator side.
9. the down-hole coal separation surrounding rock of chamber wireless monitor system based on mine mild wind collection of energy as claimed in claim 7, it is characterized in that: described horizontal axis wind-driven generator is arranged on surrounding rock of chamber top, corresponding described horizontal axis wind-driven generator arranges wind energy reinforcing mechanisms II, described wind energy reinforcing mechanisms II includes the hollow cover body II of the prismatic table shape that surrounding rock of chamber top is arranged, the air outlet of described hollow cover body II arranges wind pipe, arranges described horizontal axis wind-driven generator in described wind pipe.
CN201610233512.1A 2016-04-15 2016-04-15 Underground coal separation surrounding rock of chamber wireless monitor system based on mine gentle breeze collection of energy Expired - Fee Related CN105804795B (en)

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