CN108100793B - A kind of rope is the speed monitoring method of ropes in lifting system - Google Patents
A kind of rope is the speed monitoring method of ropes in lifting system Download PDFInfo
- Publication number
- CN108100793B CN108100793B CN201711315269.9A CN201711315269A CN108100793B CN 108100793 B CN108100793 B CN 108100793B CN 201711315269 A CN201711315269 A CN 201711315269A CN 108100793 B CN108100793 B CN 108100793B
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- China
- Prior art keywords
- rope
- signal
- lifting system
- ropes
- signal projector
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004458 analytical method Methods 0.000 claims abstract description 8
- 238000000605 extraction Methods 0.000 claims abstract description 6
- 230000035945 sensitivity Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/06—Applications of signalling devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses the speed monitoring methods that a kind of rope is ropes in lifting system, for every rope, one signal projector and a signal receiver are set, signal projector and signal receiver position face, the width of rope can be completely covered in the transmitting signal of signal projector, processor carries out the identification of twisting body protrusion according to the transmitting signal of signal projector and the reception signal difference of signal receiver, calculates the speed of service of rope；Processor carries out feature extraction and time frequency analysis to rope according to the reception signal of signal receiver, obtains the vibration frequency of rope, calculates the tension of rope, judges the motion stage of rope.The speed of service for carrying out real-time monitoring lifting system to the texture recognition of ropes in lifting system may be implemented in the present invention, and prevent lifting system from the case where card tank, hypervelocity or disconnected rope occur, and the present invention also can solve the problems such as lifting system operational efficiency, guarantee the normal work of lifting system safety.
Description
Technical field
The present invention relates to the speed monitoring methods that a kind of rope is ropes in lifting system, mention suitable for mine hoisting
Rise speed monitoring and the kinetic characteristic identification of rope.
Background technique
Coal occupies important proportion in China's energy in, with increasing, the mine hoist equipment of coal mining
Demand be consequently increased, the safe operation of mine hoisting is also more strictly regulated, while ensureing that lifting system is safe and reliable
The safety device of operation also gradually increases.Due in lifting system operational process it is possible that card tank, overspeed and disconnected
The dangerous situations such as rope, thus occur the safety guards such as anti-fall device, speed-limiting device and brake apparatus in mine hoisting,
But these safety guards can only play the role of protecting afterwards, the generation that cannot be prevented accident in advance, and structure is multiple
Miscellaneous, installation is inconvenient.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provide one kind be easily installed, safety can
It leans on, can be realized the method that contactless real-time monitoring is carried out to the speed of service that rope is ropes in lifting system；Not only
It is able to achieve contactless rope speed of service monitoring, and the number by increasing sensor transmitting terminal and sensor receiving end
Can be realized the speed of service of synchronous more ropes of real-time monitoring, Monitoring Performance is good, and it is highly-safe, while can solve in advance
The never presence of safety factor, to ensure the entire normal work of lifting system safety.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of rope is the speed monitoring method of ropes in lifting system, and the rope is periodical twisting body, along rope
Rope length direction, the rope texture in each cycle length is identical, there is m twisting body protrusion in each cycle length, rope around
It is connect after crossing head sheave with load-carrying, m is positive integer；For every rope, one signal projector and a signal receiver are set,
The width of rope, root can be completely covered in signal projector and signal receiver position face, the transmitting signal of signal projector
According to the reception signal difference of the transmitting signal and signal receiver of signal projector, processor carries out the identification of twisting body protrusion,
And feature extraction and time frequency analysis are carried out, the change frequency of twisting body protrusion is obtained, rope is calculated according to rope twisting parameter
It is axially moved speed, to monitor the axial movement speed of rope.
Preferably, the erecting bed of the head sheave, signal projector and signal receiver is kept fixed each other, signal projector
With the signal projector and signal receiver of the respectively light veil type laser displacement sensor of signal receiver, model and volume are kept
The consistency of code.It is unstable due to use environment, so that three is easy to happen vibration, in order to guarantee that the monitoring to rope is steady
It is fixed, three is fixed together, synchronization action is formed, monitoring accuracy can be improved.
Preferably, the signal projector and signal receiver are connected by cable with control box, the hair of signal projector
The reception signal of signal and signal receiver is penetrated by being sent to processor after capture card；Signal projector and signal receiver work
Before work, the calibration that face is made whether to the two by controlling box first, while according to the clean situation of rope surface setting two
The cleannes of the sensitivity mode of person, rope surface are higher, lower to sensitivity requirement；In addition to this, control box can also be right
Frequency acquisition, monitoring range, monitoring type etc. are configured.
Preferably, the principle that the processor is detected according to edge contour recognizes the edge contour of rope, in turn
It identifies twisting body protrusion, based on the edge value of the rope boundary curve acquired each time, carries out feature extraction；Although passing through letter
Number transmitter and signal receiver can collected information it is very much, but it is the most square for carrying out identification to the edge contour of rope
Just, effective and small calculation amount.
The utility model has the advantages that rope provided by the invention is the speed monitoring method of ropes in lifting system, non-connect is realized
The rope speed of service of touch monitors, and can be realized synchronous reality with the number of signal receiver by increasing signal projector
When monitor the speeds of service of more ropes, Monitoring Performance is good, highly-safe.
Detailed description of the invention
Fig. 1 is the device scheme of installation for implementing the method for the present invention；
Fig. 2 is the three-dimensional scheme of installation of a pair of of signal projector and signal receiver；
Fig. 3 is the schematic view of the front view of Fig. 2；
Fig. 4 is the three-dimensional scheme of installation of three pairs of signal projectors and signal receiver；
Fig. 5 is the connection schematic diagram for controlling box；
It include: 1, signal projector in figure；2, rope；3, signal receiver；4, box is controlled；5, capture card；6, power supply；7,
Processor.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
A kind of rope is the speed monitoring method of ropes in lifting system, and the rope 2 is periodical twisting body, along rope
2 length direction of rope, 2 texture of rope in each cycle length is identical, there is m twisting body protrusion in each cycle length, and m is positive
Integer；As shown in Figure 1, a signal projector 1 and one is arranged around connecting after head sheave with load-carrying, for every rope 2 in rope 2
A signal receiver 3,3 position face of signal projector 1 and signal receiver, the transmitting signal of signal projector 1 can be complete
Cover the width of rope 2；Signal projector 1 and signal receiver 3 are respectively the signal transmitting of light veil type laser displacement sensor
Device and signal receiver are in order to guarantee the accuracy monitored to rope 2, it is desirable that the sequence of signal projector 1 and signal receiver 3
It is number consistent；In order to guarantee the stability monitored to rope 2, guarantee the erecting bed of head sheave, signal projector 1 and signal receiver 3
It is kept fixed each other.
As shown in figure 5, signal projector 1 and signal receiver 3 are connected by cable with control box 4, signal projector 1
The reception signal of transmitting signal and signal receiver 3 is by being sent to processor 7 after capture card 5；Signal projector 1, signal connect
Device 3, control box 4 and power supply 6 is received to be fixedly mounted on the same platform.It is first before signal projector 1 and signal receiver 3 work
It first passes through control box 4 and carries out parameter setting；In signal projector 1 and the work of signal receiver 3, processor 7 emits according to signal
Device 1 transmitting signal and signal receiver 3 reception signal difference carry out twisting body protrusion identification, and carry out feature extraction and when
Frequency analysis obtains the change frequency of twisting body protrusion, and the axial movement speed of rope 2 is calculated according to rope twisting parameter, thus
Monitor the axial movement speed of rope 2.
Before signal projector 1 and signal receiver 3 work, system is in stop phase, is carried out first by control box
Optical axis calibrator guarantees that rope can be completely covered in signal projector 1 and 3 face of signal receiver, the transmitting signal of signal projector 1
The width of rope 2；After completing optical axis calibrator, further according to the clean situation on 2 surface of rope, setting sensitivity is normal sensibility mould
Formula, low sensitivity mode or highly sensitive mode, the binaryzation rank of every kind of sensitivity and filter value distribution are different,
It is the width range that rope 2 is completely covered that monitoring range, which is arranged, simultaneously, and monitoring type is set as being detected according to edge contour
Principle.
When signal projector 1 and signal receiver 3 work, capture card 5 obtains the line of rope 2 with 3000 width/s frame per second
Information is managed, and the texture information of rope 2 is sent to processor 7, the texture curve of each frame rope 2 is drawn by processor 7
Figure；Since the corresponding pixel value of rope texture is different, then collected analog voltage value is also different, each according to comparing
The texture curve graph of frame, when finding the texture curve graph that two frames are very close to, then it represents that rope 2 has run more than one week
Phase length.
By monitoring the texture curve graph of rope, the twisting body protrusion passed through when corresponding time and rope operation is recorded
Number can monitor the speed of rope.If the distance of continuous two twistings body protrusion is l, the i-th frame texture curve graph and the 0th frame line
When reason curve graph is close, t is lastedi, the twisting body protrusion number during which detected is n, then the range ability of rope is Si=
nl。
When rope is in even boost phase, thenAccelerationSpeed
When rope is in constant velocity stage, then
When rope is in the even decelerating phase, then
While monitoring the texture curve graph of rope, the edge value of each frame border texture curve graph is extracted, is carried out
Continuous wavelet transformation analysis can extract the vibration frequency of rope, to obtain rope according to the situation of change of twisting body protrusion
Tension, thus judge the operation phase of rope；Wherein wavelet transformation analysis is calculated using following formula:
Wherein: a is distorting the pictorial, and b is translation deviator, and t is the time, and ψ is wavelet basis function (morther wavelet).
Gather the speed of rope and the operation phase of rope, it can when the speed and operation phase for finding rope is not to correspondence
Judge that exception occurs in the lifting system that rope is connected, finds and solve the problems, such as in advance, avoid the generation of peril, to protect
Hinder the safe and reliable of lifting system.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of rope is the speed monitoring method of ropes in lifting system, the rope (2) is periodical twisting body, along rope
Rope (2) length direction, rope (2) texture in each cycle length is identical, there is m twisting body protrusion in each cycle length,
Rope (2) is connect after bypassing head sheave with load-carrying, and m is positive integer；It is characterized by: a signal is arranged for every rope (2)
Transmitter (1) and a signal receiver (3), signal projector (1) and signal receiver (3) position face, signal projector
(1) width of rope (2) can be completely covered in transmitting signal, received according to the transmitting signal of signal projector (1) and signal
The reception signal difference of device (3), processor (7) carry out the identification of twisting body protrusion, and carry out feature extraction and time frequency analysis, obtain
To the change frequency of twisting body protrusion, the axial movement speed of rope (2) is calculated according to rope twisting parameter, to monitor rope
(2) axial movement speed.
2. the speed monitoring method that rope according to claim 1 is ropes in lifting system, it is characterised in that: described
The erecting bed of head sheave, signal projector (1) and signal receiver (3) is kept fixed each other, and signal projector (1) and signal receive
Device (3) is respectively the signal projector and signal receiver of light veil type laser displacement sensor.
3. the speed monitoring method that rope according to claim 1 is ropes in lifting system, it is characterised in that: described
Signal projector (1) and signal receiver (3) are connected by cable with control box (4), the transmitting signal of signal projector (1) with
The reception signal of signal receiver (3) is sent to processor (7) after passing through capture card (5)；Signal projector (1) and signal receive
Before device (3) work, the calibration that face is made whether to the two by controlling box (4) first, while according to the clean of rope (2) surface
The sensitivity mode of both net situation settings, the cleannes on rope (2) surface are higher, lower to sensitivity requirement.
4. the speed monitoring method that rope according to claim 1 is ropes in lifting system, it is characterised in that: described
The principle that processor (7) is detected according to edge contour recognizes the edge contour of rope (2), and then identifies that twisting body is convex
It rises, based on the edge value of the rope boundary curve acquired each time, carries out feature extraction.
5. the speed monitoring method that rope according to claim 1 is ropes in lifting system, it is characterised in that: described
Time frequency analysis uses continuous wavelet transformation analysis method, according to the situation of change of twisting body protrusion, extracts twisting body protrusion
Change frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315269.9A CN108100793B (en) | 2017-12-12 | 2017-12-12 | A kind of rope is the speed monitoring method of ropes in lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315269.9A CN108100793B (en) | 2017-12-12 | 2017-12-12 | A kind of rope is the speed monitoring method of ropes in lifting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108100793A CN108100793A (en) | 2018-06-01 |
| CN108100793B true CN108100793B (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711315269.9A Expired - Fee Related CN108100793B (en) | 2017-12-12 | 2017-12-12 | A kind of rope is the speed monitoring method of ropes in lifting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ES2919332B2 (en) * | 2021-01-22 | 2023-08-10 | Univ Salamanca | FALL WARNING DEVICE AT DIFFERENT LEVEL OF CLIPAGE TYPE |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293331A (en) * | 2012-02-22 | 2013-09-11 | 波马加尔斯基公司 | Device and method for measuring the speed of a traction rope of an aerial cableway |
| CN104215791A (en) * | 2014-08-25 | 2014-12-17 | 山西科为感控技术有限公司 | Non-contact type steel wire rope tacho-generator |
| CN104291231A (en) * | 2014-10-27 | 2015-01-21 | 中联重科股份有限公司 | Winch steel wire rope speed detecting system, method and device and crane |
| CN204297846U (en) * | 2014-12-01 | 2015-04-29 | 方明烨 | Can be used for the rope speed laser online monitoring system of gig and lifting winch |
| CN205034936U (en) * | 2015-09-07 | 2016-02-17 | 中煤第三建设（集团）有限责任公司 | Wire rope speed path measurement device is suspended in midair in shaft construction |
| CN106908620A (en) * | 2017-05-03 | 2017-06-30 | 重庆顺心科技发展有限公司 | A kind of haulage cable linear velocity detector |
-
2017
- 2017-12-12 CN CN201711315269.9A patent/CN108100793B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293331A (en) * | 2012-02-22 | 2013-09-11 | 波马加尔斯基公司 | Device and method for measuring the speed of a traction rope of an aerial cableway |
| CN104215791A (en) * | 2014-08-25 | 2014-12-17 | 山西科为感控技术有限公司 | Non-contact type steel wire rope tacho-generator |
| CN104291231A (en) * | 2014-10-27 | 2015-01-21 | 中联重科股份有限公司 | Winch steel wire rope speed detecting system, method and device and crane |
| CN204297846U (en) * | 2014-12-01 | 2015-04-29 | 方明烨 | Can be used for the rope speed laser online monitoring system of gig and lifting winch |
| CN205034936U (en) * | 2015-09-07 | 2016-02-17 | 中煤第三建设（集团）有限责任公司 | Wire rope speed path measurement device is suspended in midair in shaft construction |
| CN106908620A (en) * | 2017-05-03 | 2017-06-30 | 重庆顺心科技发展有限公司 | A kind of haulage cable linear velocity detector |
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| Publication number | Publication date |
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| CN108100793A (en) | 2018-06-01 |
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Granted publication date: 20190903 Termination date: 20201212 |