CN109973076A - Visual detection device and method in coal mine down-hole drilling - Google Patents
Visual detection device and method in coal mine down-hole drilling Download PDFInfo
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- 238000005553 drilling Methods 0.000 title claims abstract description 64
- 239000003245 coal Substances 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000000007 visual effect Effects 0.000 title claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 6
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- 238000011161 development Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000005065 mining Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
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- 235000019738 Limestone Nutrition 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/002—Survey of boreholes or wells by visual inspection
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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Abstract
The present invention relates to a kind of detection device and methods, belong to coal mining technology field, are specifically related to visual detection device and method in a kind of coal mine down-hole drilling.It include: logical cable drilling rod, camera shooting drill bit, monitoring display device and detecting instrument；It will test instrument by logical cable drilling rod and camera shooting drill bit and be sent into designated position in hole, it will test data as communications carrier using logical cable drilling rod to upload, it can information such as observed image, natural gamma and resistivity simultaneously in the monitoring device of aperture, using situation in the comprehensive assessment identification hole to information such as image, gamma and resistivity, accuracy of the field technician to complex situations judgement in drilling is improved, is laid the foundation for further construction or processing accident etc..
Description
Technical field
The present invention relates to a kind of detection device and methods, belong to coal mining technology field, are specifically related to a kind of coal mine
Visual detection device and method in down-hole drilling.
Background technique
At present underground coal mine gas drainage, it is anti-harness the river with geological information acquisition etc. due to, daily all into
The a large amount of drilling construction of row, but due to the complexity of stratigraphic structure, the uncertainty of geological information, drilling construction accident and construction
The factors such as purpose difference need to have the complex situations in drilling one visual and clear understanding.
The instrument that situation in coal mine down-hole drilling can be detected currently on the market is all after mentioning brill by holding push rod
It is sent into hole, is extremely difficult to deeper position, most deep position is no more than 200m, is not able to satisfy directional drilling construction end hole at this stage
The bore detecting requirement of 500m to 800m；Logical cable drilling rod, can as the current key equipment for realizing underground coal mine directional drilling
Cooperate drilling machine and bit transfer torque and thrust, and energy transmission telecommunications number realizes the interaction of bottom hole instrument and aperture instrument, passes
Defeated signal is low frequency signal and switching signal, if being directly used in transmission high-frequency signal, such as vision signal, the bit error rate is higher, difficult
In meeting field demand.
Summary of the invention
A brief summary of one or more aspects is given below to provide to the basic comprehension in terms of these.This general introduction is not
The extensive overview of all aspects contemplated, and be both not intended to identify critical or decisive element in all aspects also non-
Attempt to define the range in terms of any or all.Its unique purpose is to provide the one of one or more aspects in simplified form
A little concepts are with the sequence for more detailed description given later.
The technical issues of main purpose of the present invention is in the presence of solving the prior art provides a kind of underground coal mine brill
Visual detection device and method in hole.The device and method can work under underground coal mine explosive gas atmosphere,
With practical, realization difficulty is small, integrated level is high and is convenient for promoting.
To solve the above problems, the scheme of the invention is:
Visual detection device in a kind of coal mine down-hole drilling, comprising:
Logical cable drilling rod, front end are provided with camera shooting drill bit, are internally provided with detecting instrument, and the detecting instrument passes through clip
Communication line is connect with monitoring display device.
Wherein, it is provided with cutting tooth in front of the camera shooting drill bit and camera rinses hydrophthalmia, anteriomedial is provided with
Central through hole, the rear part are connect by connection screw thread with logical cable drilling rod.
Wherein, the detecting instrument includes: power module, deviational survey module, photographing module, natural gamma module, resistivity
Module and communication control module；Wherein, power module provides power supply, photographing module, natural gamma module for other five modules
Accelerometer is all had with resistivity module can detecte itself high-low side；Deviational survey module uses three axis accelerometer and three axis magnetic
Open gate sensor realizes drilling track precise measurement；Communication control module is instructed by deviational survey, certainly according to aperture monitoring display device
Right gamma, resistivity and camera data are packaged respectively is sent to orifice devices by logical cable drilling rod using modulation communication technology.
Wherein, the detecting instrument controls deviational survey module, photographing module, natural gamma module, resistivity block according to order
It individually or simultaneously works, and deviational survey data, gamma value, resistivity, video is individually or simultaneously uploaded to aperture monitoring in real time and shown
Show that equipment, the photographing module and natural gamma mould module carry accelerometer, it can real-time measurement current tool when working independently
Towards angle.
Wherein, according to drilling track, gamma curve and video image discriminatory analysis earth formation, layer position, cranny development etc.
The method of geological information, firstly, being classified by video image to drilling kind, several features of classification have: pore-forming is several
Rate, hole wall crack size and hole wall smooth degree etc., then, in conjunction with drill in each position video image, natural gamma and
The coexpress of the parameters such as resistivity, the interior situation of comprehensive descision drilling.
Wherein, the monitoring display device combines the ginsengs such as interior each position video image, natural gamma and resistivity that drill
Several coexpress, the interior situation of comprehensive descision drilling, specifically: the one-dimensional trajectory parameters for each location point that drills, gamma are joined
Several and video image is loaded into the same coordinate system, forms the three-dimensional parameter of each location point, and when gaging hole early period passes through according to expert
It tests and assigns each recognition result, after gaging hole data accumulation is to predetermined threshold, passes through system self study and identify formation information.
Wherein, the monitoring display device executes following steps and carries out image recognition:
Step 1, image is filtered using the method for gaussian filtering；
Step 2, edge extracting is carried out to image using Laplce-Gauss operator；
Step 3, marginal portion is indicated using bianry image；
Step 4, closed area on bianry image is filled, when closed area area is less than intended pixel, then being used as is
Noise, and delete the region；
Step 5, the long axis and short axle of every piece of closed area are found out；
Step 6, the distinguishing rule of the ratio between the long axis in every piece of region and minor axis length as hole and crack, when long axis and short
When the ratio between axis is greater than predetermined value, then otherwise it is hole that determinating area, which is crack,.
Wherein, in the step 4, wherein defining the length of image-region block using Ferrett's diameter diameter, short axle is length
The perpendicular bisector of axis center point；The length computation process of short axle: assuming that the area of the closed area is equivalent to an ellipse area,
Elliptical long axis is the eret diameter in the region, and the length of short axle is calculated by the equivalent ellipse area.
Visual detection method in a kind of coal mine down-hole drilling, comprising:
Logical cable drilling rod front end is provided with camera shooting drill bit, detecting instrument is being internally provided with, by the detecting instrument by leading to
Cable drilling rod and camera shooting drill bit are sent into hole, are acquired information in hole and are sent to aperture monitoring display device, the detecting instrument is led to
Clip communication line is crossed to connect with monitoring display device, by the detecting instrument according to aperture monitoring display device instruct by deviational survey,
Natural gamma, resistivity and camera data are packaged respectively is sent to orifice devices by logical cable drilling rod using modulation communication technology.
Wherein, it is provided with cutting tooth in front of the camera shooting drill bit and camera rinses hydrophthalmia, anteriomedial is provided with
Central through hole, the rear part are connect by connection screw thread with logical cable drilling rod.
Compared with prior art, beneficial effects of the present invention:
1) image synthesis detection in present invention realization drilling posture, stratum gamma and hole, it is single on the market compared at present
Detection instrument, to drilling, complex situations and geological information detection are more acurrate, application range is broader.
2) data and vision signal are utilized logical cable drilling rod simultaneous transmission, instrument using frequency multiplexing technique by the present invention
Pushed with drilling machine, compared to prying through instrument in the hole using hand-held push rod on the market at present, more time saving and energy saving and push away from
From farther.
Detailed description of the invention
It is incorporated herein and the attached drawing for forming part of specification instantiates the embodiment of the present invention, and attached drawing and explanation
Book is further used for explaining the principle of the present invention together and one of ordinary skill in the art is enabled to make and use the disclosure.
Fig. 1 is the operation principle schematic diagram of the visual detection device of complex situations in coal mine down-hole drilling of the present invention.
Fig. 2 is the electrical diagram of detecting instrument in the present invention.
Fig. 3-1 to 3-2 is the structure chart that drill bit is imaged in the present invention.
Fig. 4 is work flow diagram of the present invention.
The comprehensive identification schematic diagram of Fig. 5 detection information.
Fig. 6-1 to Fig. 6-4 is detecting instrument power module circuitry figure, wherein Fig. 6-1 is video power supply, and Fig. 6-2 is gamma
Power supply, Fig. 6-3 are deviational survey power supply, and Fig. 6-4 is microcontroller power supply.
Fig. 7-1, Fig. 7-2, Fig. 7-3 are detecting instrument communication control module circuit diagram, and Fig. 7-4, Fig. 7-5 are figure in drilling
Picture.
Appended drawing reference: 1 for logical cable drilling rod, 2 it is camera shooting drill bit, 3 is detecting instrument, 4 is monitoring display device, 5 is communication
Clip line, 6 be power module, 7 be communication control module, 8 be deviational survey module, 9 be natural gamma module, 10 be photographing module,
11 be camera rinse hydrophthalmia, 12 be clamping screw, 13 be bit port, 14 be connection screw thread, 15 be bit body, 16 be cutting
Tooth, 17 are center through-hole.
Below by embodiment, in conjunction with attached drawing, detailed description of embodiments of the present invention.
Specific embodiment
Embodiment
Referring to Fig. 1, it is shown that the working principle of the visual detection device of complex situations, the dress in coal mine down-hole drilling of the present invention
It sets comprising logical cable drilling rod 1, camera shooting drill bit 2, detecting instrument 3, monitoring display device 4 and clip communication line 5.
In monitoring holes before situation, first it will test instrument 3 with logical cable drilling rod 1 and the camera shooting cooperation of drill bit 2 and be sent into specific bit in hole
It sets, then connects monitoring display device 4 and logical cable drilling rod 1 with clip communication line 5, Monitoring instruction is issued by monitoring display device 4, is led to
It crosses clip line 5 and logical 1 two-way transmission signals of cable drilling rod control detecting instrument 3 acquires information in hole and is uploaded to monitoring display device
4 display and save.
Referring to fig. 2, it is shown that the electrical diagram of detecting instrument 3 in the present invention, comprising: power module 6, communication control module
7, deviational survey module 8, natural gamma module 9 and photographing module 10.The power module 6 is communication module 7, deviational survey module 8, natural gal
Horse module 9 and photographing module 10 are powered；Communication control module 7 receives the instruction that monitoring display device 4 issues and controls deviational survey module
8, natural gamma module 9 and the acquisition of photographing module 10 and upload data.
Referring to Fig. 3-1 to Fig. 3-2, it is shown that image the structure of drill bit 2 in the present invention, comprising: camera flushing hydrophthalmia 11,
Clamping screw 12, bit port 13 are connection screw thread 14, bit body 15, cutting tooth 16 and central through hole 17.Wherein bit port
13, connection screw thread 14, bit body 15 and cutting tooth 16 are mainstream structure of the conventional bit in engineer application；Camera flushing water
Eye 11 is designed to clean camera, can one jet flow cleaning camera formed here when opening slush pump；Locking
Bolt 12 and central through hole 17 cooperate fixed test instrument 3, it is ensured that detecting instrument 3 is fixed on bit central position, and can shoot
Situation in hole in front of drill bit.
Referring to fig. 4, it is shown that work flow diagram of the present invention, field technician issue work by monitoring display device and refer to
It enables to detecting instrument, detecting instrument is independent according to order control deviational survey module, photographing module, natural gamma module, resistivity block
Or it works at the same time, and deviational survey data, gamma value, resistivity, video are individually or simultaneously uploaded to aperture monitoring display in real time and set
Standby, photographing module and natural gamma mould module carry accelerometer, and energy real-time measurement current tool is towards angle when working independently, just
It is analyzed in technical staff.Technical staff can be according to drilling track, gamma curve, resistivity curve and video image discriminatory analysis
The geological informations such as earth formation, layer position, cranny development.
Referring to Fig. 5, it is shown that the multiple identification process based on video image, deviational survey information and well logging information effectively improves
Identification of formation precision.
Specifically, in the present embodiment, it is as follows using image recognizing step:
Step 1, image is filtered using the method for gaussian filtering；
Step 2 carries out edge extracting to image using Laplce-Gauss operator；
Step 3 indicates that marginal portion, marginal portion indicate (i.e. pixel value is 255) with white, go it using bianry image
Remaining part point indicates (i.e. pixel value is 0) with black.
Step 4 fills closed area on bianry image, and when closed area area is less than 40 pixel, then being used as is to make an uproar
Sound deletes the region；
Step 5 finds out the long axis and short axle of every piece of closed area.Long axis herein is defined as: determined using Feret diameter
The length of adopted image-region block.Short axle is the perpendicular bisector of long axis central point.The length computation process of short axle: assuming that the closed area
Area be equivalent to an ellipse area, elliptical long axis is the eret diameter in the region, and the length of short axle is equivalent by this
Ellipse area be calculated.
The distinguishing rule of the ratio between the long axis in every piece of region of step 6 and minor axis length as hole and crack.When long axis and short
When the ratio between axis is 1, then the region is circle；Ratio shows that more greatly the region is longer and narrower, can be obtained by experience, therefore ratio defined herein
When value is greater than 8, then region is that crack is defined as hole when less than 8.
Fig. 6-1 to Fig. 6-4 is detecting instrument power module circuitry figure.The detecting instrument power module circuitry is mainly by DC
Conversion module VRB1215S-6WR3, voltage stabilizing chip LT1963, voltage stabilizing chip TPS7133 composition, are specifically divided into video power supply mould
Block, gamma power module, deviational survey power module, four modules such as microcontroller power supply module.
Wherein, in video power module, 1 foot of the logic unit DC1 of model VRB1215S-6WR3,7 feet ground connection；2 feet
Anode is connect, and is grounded by capacitor CD3, CD4；6 feet connect 8 feet of U1, U2, and are grounded by capacitor CD1, CD2.Model
1 foot of the logic unit U1 of LT1963 exports video positive pole, and is grounded by capacitor C1, C2, also passes through resistance R1 and 2 feet
Connection；2 feet of U1 are also connect with resistance R3, the other end ground connection of R3；3 feet of U1,6 feet, 7 feet ground connection；The 14 of 5 feet of U1 and U6
Foot connection, and be grounded by resistance R2.
Wherein, 1 foot of the logic unit U2 of model LT1963 exports gamma positive pole in gamma power module, and leads to
Capacitor C3, C4 ground connection are crossed, is also connect by resistance R4 with 2 feet；2 feet of U2 are also connect with resistance R6, the other end ground connection of R6；U2
3 feet, 6 feet, 7 feet ground connection；5 feet of U2 and 11 feet of U6 connect, and are grounded by resistance R5, and the input of U2 connects 6 feet of DC1.
Wherein, 8 feet of 1 foot of the logic unit U3 of model LT1963 and U4 connect in deviational survey power module, pass through electricity
Feel 3 feet, the connection of 4 feet of L1 and U5, and be grounded by capacitor C5, C6, C9, C10, is also connect by resistance R9 with 2 feet；The 2 of U3
Foot is also connect with resistance R11, the other end ground connection of R11；3 feet of U3,6 feet, 7 feet ground connection；5 feet, 8 feet and the anode of U3 connects
It connects, 1 foot of U3 is output end vo ut2, and the input of U4 meets Vout2, and 1 foot of the logic unit U4 of model LT1963 exports deviational survey
Positive pole, and be grounded by capacitor C7, C8, also it is connect by resistance R7 with 2 feet；2 feet of U4 are also connect with resistance R10, R10
The other end ground connection；3 feet of U4,6 feet, 7 feet ground connection；5 feet of U4 and 15 feet of U6 connect, and are grounded by resistance R8.
Wherein, 1 foot of the logic unit U5 of model TPS7133,2 feet ground connection in microcontroller power supply module；5 feet, 6 feet, 7
Foot is connected with each other, and exports 3.3V power supply；3.3V power supply is connected by 8 feet of resistance R12 and U5, is connect by capacitor C11, C12
Ground.
The detecting instrument communication control module circuit is mainly made of singlechip chip U6, communication chip U9, U10.
1 foot, 9 feet, 24 feet, 36 feet, 48 feet of the logic unit U6 of model STM32F103 connect 3.3V power supply, and pass through
Capacitor C16, C17, C18, C19, C20, C21 ground connection；8 feet of U6,23 feet, 35 feet, 47 feet ground connection；5 feet of U6 pass through crystal oscillator Y1
It is connect with 6 feet, the both ends crystal oscillator Y1 pass through capacitor C13, C14 ground connection respectively；7 feet of U6 and the RESET mouth of program debugging interface P1
Connection, and 3.3V power supply is connect by R14, it is grounded by C15；12 feet of U6 and 6 feet of U10 connect；The 3 of 13 feet of U6 and U10
Foot connection；18 feet of U6 and 4 feet, 5 feet of U10 connect；19 feet of U6 and 4 feet, 5 feet of U9 connect；30 feet of U6 and 6 feet of U9
Connection；31 feet of U6 and 3 feet of U9 connect；34 feet of U6 are connect with the SWDIO mouth of program debugging interface P1；37 feet and journey of U6
The SWCLK mouth of sequence debugging interface P1 connects；45 feet of U6 and 2 feet of U8 connect；46 feet of U6 and 1 foot of U8 connect；
1 foot of the logic unit U9 of model ADM2687 is grounded, and 2 feet connect 3.3V power supply, also pass through capacitor between 1 foot and 2 feet
C22, C23 connection；7 feet of U9 connect 3.3V power supply, and 8 feet ground connection is also connected by capacitor C26, C27 between 7 feet and 8 feet；9 feet of U9
It connect with 16 feet, and is connect by capacitor C24, C25, C28, C29 with 10 feet, 15 feet；11 feet of U9 are connect with 14 feet, and are passed through
Resistance R16 is connect with 12 feet, 13 feet, is connect by resistance R15 with 10 feet, 15 feet, is connect by resistance R17 with 9 feet, 16 feet.
1 foot of the logic unit U10 of model ADM2687 is grounded, and 2 feet connect 3.3V power supply, also pass through electricity between 1 foot and 2 feet
Hold C30, C31 connection；7 feet of U9 connect 3.3V power supply, and 8 feet ground connection is also connected by capacitor C34, C35 between 7 feet and 8 feet；The 9 of U9
Foot is connect with 16 feet, and is connect by capacitor C32, C33, C36, C37 with 10 feet, 15 feet；11 feet of U9 are connect with 14 feet, and are led to
It crosses resistance R19 to connect with 12 feet, 13 feet, be connect by resistance R18 with 10 feet, 15 feet, connected by resistance R20 and 9 feet, 16 feet
It connects.
The result that the present invention measures is able to reflect the strata condition near drill bit, and engineering and geological personnel can be made to slap in time
Underground geologic parameter is held, for avoiding error in judgement, accurate bore is of great significance up to target zone, is particularly suitable for horizontal well.
Multi-faceted measurement is carried out in conjunction with gamma and resistivity measurement geologic parameter, accurate geologic information can be obtained, be particularly suitable for
Thin layer exploration.Orientation gamma instrument generally uses two or more gamma detectors, while measuring different direction in same point
Gamma data, engineering staff promptly and accurately grasps well track according to multiple groups gamma data, while received log data is passed through
After extreme value variance is layered, each interval log value is solved, for each log, using all data of the interval
The method of point average value.Since coal petrography, mud stone, sandstone, limestone have different response characteristics, the well logging between each lithology is found out
Cut off value determines the lithology of each interval according to the range where each interval log value.
Whether there is crack to the strata condition near drill bit using the method for image recognition herein and hole progress is adaptive
It should judge.As shown in Fig. 7-4 and Fig. 7-5, Fig. 7-4 is the aperture image sample of collection in worksite, and Fig. 7-5 is the ring-type of collection in worksite
Crack image pattern.
In conclusion the formation pore obtained near drill bit and crack base that can be adaptive using the method for image recognition
This situation.
As can be seen from the above description, the monitoring processing unit logic of the present embodiment first passes through image mask to each frame image
It only extracts target area boundaries line to process, there is invasion exception on boundary line and switch mask again, it is gradually derivative to entire monitoring
Target internal region, at this moment invasion is abnormal to be still remained, and just completes alarm movement.
In the present embodiment, although the above method to be illustrated to and is described as a series of actions to simplify to explain, answer
It is appreciated and understood that, the order that these methods are not acted is limited, because according to one or more embodiments, some movements can be by not
Occur with order and/or with from depicted and described herein or not shown herein and describe but those skilled in the art can be with
Other movements understood concomitantly occur.
It is noted that " one embodiment ", " embodiment ", " example embodiment ", " some embodiments " etc. in specification
Reference instruction described embodiment may include a particular feature, structure, or characteristic, but each embodiment may not necessarily include
The a particular feature, structure, or characteristic.Moreover, such phrase is not necessarily referring to the same embodiment.In addition, ought retouch in conjunction with the embodiments
When stating a particular feature, structure, or characteristic, regardless of whether being expressly recited, such feature, structure are realized in conjunction with other embodiments
Or characteristic will be in the knowledge of those skilled in the art.
Offer is to make any person skilled in the art all and can make or use this public affairs to the previous description of the disclosure
It opens.The various modifications of the disclosure all will be apparent for a person skilled in the art, and as defined herein general
Suitable principle can be applied to other variants without departing from the spirit or scope of the disclosure.The disclosure is not intended to be limited as a result,
Due to example described herein and design, but should be awarded and principle disclosed herein and novel features phase one
The widest scope of cause.
Claims (10)
1. visual detection device in a kind of coal mine down-hole drilling characterized by comprising
Logical cable drilling rod, front end are provided with camera shooting drill bit, are internally provided with detecting instrument, and the detecting instrument is communicated by clip
Line is connect with monitoring display device.
2. visual detection device in coal mine down-hole drilling as described in claim 1, which is characterized in that in front of the camera shooting drill bit
It is provided with cutting tooth (16) and camera rinses hydrophthalmia (11), anteriomedial is provided with central through hole (17), and the rear part is logical
Connection screw thread is crossed to connect with logical cable drilling rod.
3. visual detection device in coal mine down-hole drilling as described in claim 1, which is characterized in that the detecting instrument packet
It includes: power module, deviational survey module, photographing module, natural gamma module, resistivity module and communication control module；Wherein, power supply
Module provides power supply for other five modules, and photographing module, natural gamma module and resistivity module all have accelerometer can
To detect itself high-low side；Deviational survey module realizes that drilling track is accurately surveyed using three axis accelerometer and three axis fluxgate sensors
Amount；Communication control module distinguishes deviational survey, natural gamma, resistivity and camera data according to the instruction of aperture monitoring display device
It is packaged and orifice devices is sent to by logical cable drilling rod using modulation communication technology.
4. visual detection device in coal mine down-hole drilling as claimed in claim 3, which is characterized in that the detecting instrument according to
Order control deviational survey module, photographing module, natural gamma module, resistivity block individually or simultaneously work, and by deviational survey data, gal
Horse value, resistivity, video are individually or simultaneously uploaded to aperture monitoring display device, the photographing module and natural gamma mould in real time
Module carries accelerometer, and energy real-time measurement current tool is towards angle when working independently.
5. visual detection device in coal mine down-hole drilling according to claim 4, according to drilling track, gamma curve and view
The method of the geological informations such as frequency image discriminatory analysis earth formation, layer position, cranny development, which is characterized in that firstly, passing through video
Image classifies to drilling kind, and several features of classification have: pore-forming probability, hole wall crack size and hole wall smooth degree
Deng then, comprehensive to sentence in conjunction with the coexpress of the parameters such as each position video image, natural gamma and resistivity in drilling
Situation in breaking of rod hole.
6. visual detection device in coal mine down-hole drilling according to claim 1, which is characterized in that the monitoring display is set
It is standby combine drill in the parameters such as each position video image, natural gamma and resistivity coexpress, in comprehensive descision drilling
Situation, specifically: the one-dimensional trajectory parameters for each location point that drills, gamma parameter and video image are loaded into the same coordinate system
In, it forms the three-dimensional parameter of each location point, each recognition result is assigned according to expertise when gaging hole early period, when gaging hole number
After running up to predetermined threshold, formation information is identified by system self study.
7. visual detection device in coal mine down-hole drilling according to claim 1, which is characterized in that the monitoring display is set
The standby following steps that execute carry out image recognition:
Step 1, image is filtered using the method for gaussian filtering；
Step 2, edge extracting is carried out to image using Laplce-Gauss operator；
Step 3, marginal portion is indicated using bianry image；
Step 4, closed area on bianry image is filled, when closed area area is less than intended pixel, then being used as is noise,
And delete the region；
Step 5, the long axis and short axle of every piece of closed area are found out；
Step 6, the distinguishing rule of the ratio between the long axis in every piece of region and minor axis length as hole and crack, when long axis and short axle it
When than being greater than predetermined value, then otherwise it is hole that determinating area, which is crack,.
8. visual detection device in coal mine down-hole drilling according to claim 1, which is characterized in that in the step 4,
The middle length that image-region block is defined using Ferrett's diameter diameter, short axle are the perpendicular bisector of long axis central point；The length of short axle
Calculating process: assuming that the area of the closed area is equivalent to an ellipse area, elliptical long axis is the eret in the region
The length of diameter, short axle is calculated by the equivalent ellipse area.
9. visual detection method in a kind of coal mine down-hole drilling characterized by comprising
Logical cable drilling rod front end is provided with camera shooting drill bit, is being internally provided with detecting instrument, the detecting instrument is bored by logical cable
Bar and camera shooting drill bit are sent into hole, are acquired information in hole and are sent to aperture monitoring display device, the detecting instrument is passed through folder
Sub- communication line is connect with monitoring display device, is instructed according to aperture monitoring display device by deviational survey, nature by the detecting instrument
Gamma, resistivity and camera data are packaged respectively is sent to orifice devices by logical cable drilling rod using modulation communication technology.
10. visual detection method in coal mine down-hole drilling as claimed in claim 9, which is characterized in that before the camera shooting drill bit
Side is provided with cutting tooth (16) and camera rinses hydrophthalmia (11), and anteriomedial is provided with central through hole (17), the rear part
It is connect by connection screw thread with logical cable drilling rod.
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Inventor after: Gao Jun Inventor after: Zhang Jiguan Inventor after: Chen Long Inventor after: Wang Siyi Inventor after: Chen Xiang Inventor after: Chu Zhiwei Inventor after: Gao Xiaoliang Inventor after: Bi Zhiqin Inventor before: Gao Jun Inventor before: Zhang Jiguan Inventor before: Chen Long Inventor before: Wang Siyi Inventor before: Chen Xiang Inventor before: Zhu Zhiwei Inventor before: Gao Xiaoliang Inventor before: Bi Zhiqin |
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Application publication date: 20190705 |