CN107010522A - A kind of vertical shaft hoist auxiliary shaft cage safety supervising device in place and monitoring method - Google Patents
A kind of vertical shaft hoist auxiliary shaft cage safety supervising device in place and monitoring method Download PDFInfo
- Publication number
- CN107010522A CN107010522A CN201710383372.0A CN201710383372A CN107010522A CN 107010522 A CN107010522 A CN 107010522A CN 201710383372 A CN201710383372 A CN 201710383372A CN 107010522 A CN107010522 A CN 107010522A
- Authority
- CN
- China
- Prior art keywords
- cage
- occupant
- safe blind
- infrared camera
- processor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/04—Mining-hoist cars or cages
-
- 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
-
- 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
- B66B5/0012—Devices monitoring the users of the elevator system
-
- 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
Landscapes
- Emergency Alarm Devices (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention discloses a kind of vertical shaft hoist auxiliary shaft cage safety supervising device in place and monitoring method, including infrared camera, support, processor and audible-visual annunciator；Support is fixed in the middle part of derrick panel, and support intersects vertically in the horizontal plane with derrick panel；Infrared camera is fixed on the outer end of support, and the lens direction of infrared camera is towards safe blind；Processor is fixed on frame upper close to the side of derrick panel, and audible-visual annunciator is arranged on frame upper close to the side of infrared camera；Processor gathers the cage infrared image of safe blind side by infrared camera, and using the profile hiding relation of the profile of occupant and safe blind, occupant and safe blind, whether safe blind all puts down, whether occupant fully enters cage for identification.The principle of the invention is ingenious, dependable performance, simple in construction, safe operation are with low cost, can greatly improve monitoring cage operating efficiency in place safely, and economic benefit is obvious.
Description
Technical field
The present invention relates to a kind of vertical shaft hoist auxiliary shaft cage safety supervising device in place suitable for coal production operation
And monitoring method.
Background technology
Coal is the current main fossil energy of China, and vertical shaft hoisting is the leading form of China's coal-mine production.Auxiliary shaft
It is the throat thoroughfare of lifts personnel in vertical shaft hoisting, is to link up the important pivot in coal mine with underground.In daily production, tank
Cage relies primarily on the judgement of signalman's direct visual perception in place.Because coalmine illumination condition is extremely limited, composition component is more, structure
Complexity, causing the signalman in operating room to be difficult to observe cage, whether safety is in place, i.e., when in secondary lifting occupant it is whether complete
Portion enters cage, and whether safe blind all puts down.The peak period particularly relieved in miner, goes into the well, gug personnel collect
In near cage, signalman is difficult to rapidly and accurately judge seated position, strongly limit the operating efficiency of cage hoisting.
Occupant is without good in place or in the case that safe blind is not put down all, and elevator, which starts cage, can cause great safety
Hidden danger, it is easy to cause occupant injured or even pendant well.Such as certain colliery year 2 month 14, the situation that operative employee is not turned off in cage gate
Lower winding cage, when cage is because of uneven balanced oscillating, 7 people are thrown out of in tank, cause 3 dead 1 wounds.Certain colliery year 2 month 8,
Operative employee starts cage in the case where two miners are not yet completely into cage, causes 2 people to fall well bore and dies.Therefore, auxiliary shaft is studied
Cage safety supervising device in place and method, for ensureing that miner's safety, raising auxiliary shaft operating efficiency are significant
At present, the safety monitoring research in place for cage is concentrated mainly on safety door for cage (curtain), lacks to occupant
The research monitored in place.Patent authorization number is ZL 201110437026.9 safety door device of cage, is realized from mechanical structure
The opening and closing of safety door.Patent authorization number is ZL 201220515664.8 gas drive dynamic formula cage safe blind, from change type of drive
On realize the opening and closing of safety door.Patent authorization number is ZL 201110281051.2 magnetic lock for cage safety door, utilizes strong magnetic force
Key adsorbs the mode of irony lock core, prevents that safety door from being influenceed to occur voluntarily to open by external factors.It is extended to particular space
Personnel control research, number of patent application be CN 201610430945.6 infrared pedestrian detection method, based on image block depth
Learning characteristic detection infrared image in whether someone；Patent authorization number fills for ZL 201220521452.0 demographics detection
Put, classroom number is detected using infrared sensor of the human body；Number of patent application monitors for CN 201410662745.4 personal security
System, a network transmission device, several labels and locating base station are installed in specific monitored area, the position of personnel is entered
Line trace, completes the monitoring of elevator maintainer.
Remained for the monitoring research in place of vertical shaft hoist auxiliary shaft cage safety in problems with：First, in lighting condition
It is extremely limited, component is more for composition, in baroque mine, signalman, which observes by the naked eye, easily judges cage position by accident,
And operating efficiency is low, particularly influences the operating efficiency relieved；Second, for the infrared monitoring of particular space, it can be used for
In rough identification specific region whether someone, but cage whether can not be fully entered to occupant and safe blind all puts down and sentenced
It is disconnected；3rd, by tag sensor network carry out personnel positioning monitoring, it is necessary on cage and occupant install network transmission device and
Label, bring larger installation cost and operation bear, and cage due to hot and humid running environment do not allow typically it is external
Power supply.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, present invention offer one kind is simple in construction, it is reliable to have concurrently
Property and convenience vertical shaft hoist auxiliary shaft cage safety supervising device in place and method.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
A kind of vertical shaft hoist auxiliary shaft cage safety supervising device in place, including infrared camera, support, processor harmony
Light crossing-signal；Support is fixed in the middle part of derrick panel, and support intersects vertically in the horizontal plane with derrick panel, forms T-type structure；
Infrared camera is fixed on the outer end of support, and the lens direction of infrared camera is towards safe blind；Processor is fixed on support
Portion is close to the side of derrick panel, and audible-visual annunciator is arranged on frame upper close to the side of infrared camera；Infrared camera
It is connected with audible-visual annunciator with processor, processor gathers the cage infrared image of safe blind side by infrared camera,
Using the profile hiding relation of the profile of occupant and safe blind, occupant and safe blind, whether identification safe blind all put down,
Whether occupant fully enters cage, and controls the opening and closing of audible-visual annunciator.
Specifically, the lens direction of the infrared camera is just to safe blind, the angle with horizontal plane is 45 °~60 °, red
The lens base of outer camera and the horizontal range of derrick panel are 500mm~1000mm, are ensureing compact same of overall structure
When ensure that infrared camera can photograph the overall picture of the cage of safe blind side.
A kind of monitoring method based on above-mentioned vertical shaft hoist auxiliary shaft cage safety supervising device in place, including following step
Suddenly：
(a) the right angle setting support in the middle part of derrick panel, infrared camera is arranged on the outer end of support, makes infrared photography
The lens direction of head, by the rack-mount portion of processor close to derrick panel side, audible-visual annunciator is pacified towards safe blind
Mounted in frame upper close to infrared camera side, audible-visual annunciator and infrared camera are connected with processor communication；
(b) when cage needs to start, processor starts infrared camera, and infrared camera passes the infrared image of shooting
Processor is given, processor decoding IR image carries out Image Edge-Detection using canny operators, obtains safe blind side
Edge image：It is many parallel rod-like structures based on safe blind, according to many be parallel to each other detected in edge image
Straightway, judges the folding and unfolding state of safe blind；It is irregular curve based on human body contour outline, is not advised what is detected in edge image
Then profile is determined as occupant, judges the standing place of occupant；
(c) according to the edge image of safe blind side, the profile of occupant and safe blind, occupant and safe blind are utilized
Profile hiding relation, whether safe blind all puts down, whether occupant fully enters cage for identification, and controls opening for audible-visual annunciator
Close.
Specifically, in the step (c), according to the edge image of safe blind side, being carried out to cage safety situation in place
It is following to judge：
If 1. representing, the parallel segment of safe blind extends to cage bottom, and is uniformly distributed, then has judged safe blind
Through putting down completely；If representing, the parallel segment of safe blind fails to extend to cage bottom, judges that safe blind fails to put down completely,
Processor triggers audible-visual annunciator, and the prompting safe blind that sends out a warning is not put down completely；
2. on the premise of judging that safe blind is all put down, if representing the parallel segment of safe blind by the profile of occupant
Blocking, that is, the profile for having occupant is covered on the parallel segment for representing safe blind, then is determined with occupant and does not fully enter cage, or
There is occupant in the hole close to cage, processor triggering audible-visual annunciator, safety is not in place by bright orange lamp prompting occupant；
3. on the premise of judging that safe blind is all put down, if representing the parallel segment of safe blind not by the wheel of occupant
Exterior feature blocking, that is, represent that the parallel segment of safe blind is covered on the profile of occupant, then judge that occupant has fully entered cage, and
Without occupant close to cage, processor triggers audible-visual annunciator, and the prompting that gives a green light can be with clean boot cage.
Beneficial effect：Vertical shaft hoist auxiliary shaft cage safety supervising device in place and monitoring method that the present invention is provided, are adopted
Cage safe blind is shot with infrared photography, the problem of illumination of vertical shaft hoist cage is not enough is solved；Taken the photograph based on infrared
The penetrability of picture, the profile of occupant and safe blind in cage image is identified using rim detection, is enhanced using canny operators
Detection to weak edge in image, with good signal to noise ratio and accuracy of detection, recycles profile, the Cheng Yuanhe of safe blind
The profile hiding relation of safe blind, identifies whether safe blind all puts down, whether occupant fully enters cage, finally monitors out
Whether safety is in place for cage.The principle of the invention is ingenious, dependable performance, simple in construction, safe operation are with low cost, can greatly carry
Height monitoring cage operating efficiency in place safely, improves auxiliary shaft miner and enters well and go out the security of well, economic benefit is obvious.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention；
Fig. 2 is not put down and imaging schematic diagram completely for the safe blind of the present invention；
Fig. 3 is the complete in place and imaging schematic diagram of occupant of the invention；
Fig. 4 is the safe in place and imaging schematic diagram of cage of the invention；
In figure：1- cages, 2- derrick panels, 3- processors, 4- audible-visual annunciators, 5- supports, 6- infrared cameras, 7- peaces
Full curtain, 8- occupant.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
It is as shown in Figure 1 a kind of vertical shaft hoist auxiliary shaft cage safety supervising device in place, including infrared camera 6, branch
Frame 5, processor 3 and audible-visual annunciator 4；Support 5 is fixed on the middle part of derrick panel 2, and support 5 and derrick panel 2 are in the horizontal plane
Intersect vertically, form T-type structure；Infrared camera 6 is fixed on the outer end of support 5, the lens direction direction peace of infrared camera 6
Full curtain 7；Processor 3 is fixed on the top of support 5 close to the side of derrick panel 2, and audible-visual annunciator 4 is arranged on the top of support 5 and leaned on
The side of near-infrared camera 6；Infrared camera 6 and audible-visual annunciator 4 are connected with processor 3, and processor 3 is taken the photograph by infrared
As first 6 infrared images of cage 1 for gathering the side of safe blind 7, the profile of occupant 8 and safe blind 7, occupant 8 and safety are utilized
The profile hiding relation of curtain 7, whether identification safe blind 7 all puts down, whether occupant 8 fully enters cage 1, and controls acousto-optic report
The opening and closing of alert device 4.
In said apparatus, the lens direction of the infrared camera 6 just to safe blind 7, the angle with horizontal plane is 45 °~
60 °, the lens base of infrared camera 6 is 500mm~1000mm with the horizontal range of derrick panel 2, it is ensured that infrared camera 6
The overall picture of the cage 1 of the side of safe blind 7 can be photographed.
A kind of monitoring method of above-mentioned vertical shaft hoist auxiliary shaft cage safety supervising device in place, comprises the following steps：
(a) in the middle part right angle setting support 5 of derrick panel 2, infrared camera 6 is arranged on to the outer end of support 5, made infrared
Processor 3 is arranged on the top of support 5 close to the side of derrick panel 2, by acousto-optic by the lens direction of camera 6 towards safe blind 7
Alarm 4 is arranged on the top of support 5 close to the side of infrared camera 6, by audible-visual annunciator 4 and infrared camera 6 and processor 3
Communication connection；
(b) when cage 1 needs to start, processor 3 starts infrared camera 6, and infrared camera 6 is by the infrared figure of shooting
As sending processor 3 to, the decoding IR image of processor 3 carries out Image Edge-Detection using canny operators, obtains safe blind 7
The edge image of side：It is many parallel rod-like structures based on safe blind 7, according to being parallel to each other for being detected in edge image
Many straightways, judge the folding and unfolding state of safe blind 7；It is irregular curve based on human body contour outline, will be detected in edge image
The irregular contour gone out is determined as occupant 8, judges the standing place of occupant 8；
(c) according to the edge image of the side of safe blind 7, the profile of occupant 8 and safe blind 7, occupant 8 and safety are utilized
The profile hiding relation of curtain 7, whether identification safe blind 7 all puts down, whether occupant 8 fully enters cage 1, and controls acousto-optic report
The opening and closing of alert device 4, judges as follows：
If 1. representing, the parallel segment of safe blind 7 extends to the bottom of cage 1, and is uniformly distributed, then judges safe blind 7
Put down completely；If representing, the parallel segment of safe blind 7 fails to extend to the bottom of cage 1, judges that safe blind 7 fails completely
Put down, the triggering audible-visual annunciator 4 of processor 3, the prompting safe blind 7 that sends out a warning is not put down completely；
2. on the premise of judging that safe blind 7 is all put down, if representing the parallel segment of safe blind 7 by occupant's 8
Profile is interdicted, that is, the profile for having occupant 8 is covered on the parallel segment for representing safe blind 7, then is determined with occupant 8 and does not fully enter
Cage 1, or have occupant 8 in the hole close to cage, the triggering audible-visual annunciator 4 of processor 3, bright orange lamp prompting occupant 8 is not
Safety is in place；
3. on the premise of judging that safe blind 7 is all put down, if representing the parallel segment of safe blind 7 not by occupant 8
Profile blocking, that is, represent safe blind 7 parallel segment be covered on the profile of occupant 8, then judge occupant 8 fully entered
Cage 1, and without occupant 8 close to cage 1, processor 3 triggers audible-visual annunciator 4, and the prompting that gives a green light can be with clean boot cage 1.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of vertical shaft hoist auxiliary shaft cage safety supervising device in place, it is characterised in that：Including infrared camera (6), branch
Frame (5), processor (3) and audible-visual annunciator (4)；Support (5) is fixed in the middle part of derrick panel (2), support (5) and derrick panel
(2) intersect vertically in the horizontal plane, form T-type structure；Infrared camera (6) is fixed on the outer end of support (5), infrared camera
(6) lens direction is towards safe blind (7)；Processor (3) is fixed on support (5) top close to the side of derrick panel (2), sound
Light crossing-signal (4) is arranged on side of support (5) top close to infrared camera (6)；Infrared camera (6) and audible-visual annunciator
(4) it is connected with processor (3), the cage (1) that processor (3) gathers safe blind (7) side by infrared camera (6) is infrared
Image, utilizes the profile hiding relation of the profile of occupant (8) and safe blind (7), occupant (8) and safe blind (7), identification peace
Whether full curtain (7) all puts down, whether occupant (8) fully enters cage (1), and control the opening and closing of audible-visual annunciator (4).
2. vertical shaft hoist auxiliary shaft cage safety supervising device in place according to claim 1, it is characterised in that：It is described red
The lens direction of outer camera (6) is just to safe blind (7), and the angle with horizontal plane is 45 °~60 °, the mirror of infrared camera (6)
The horizontal range of head base and derrick panel (2) is 500mm~1000mm, it is ensured that infrared camera (6) can photograph safety
The overall picture of the cage (1) of curtain (7) side.
3. a kind of monitoring method of the vertical shaft hoist auxiliary shaft cage safety supervising device in place based on described in claim 1 or 2,
It is characterized in that：Comprise the following steps：
(a) the right angle setting support (5) in the middle part of derrick panel (2), infrared camera (6) is arranged on the outer end of support (5), made
Processor (3) is arranged on support (5) top close to derrick panel by the lens direction of infrared camera (6) towards safe blind (7)
(2) side, is arranged on support (5) top close to infrared camera (6) side, by audible-visual annunciator (4) by audible-visual annunciator (4)
Communicated to connect with infrared camera (6) and processor (3)；
(b) when cage (1) needs to start, processor (3) starts infrared camera (6), and infrared camera (6) is by the red of shooting
Outer image sends processor (3) to, and processor (3) decoding IR image carries out Image Edge-Detection using canny operators, obtained
Obtain the edge image of safe blind (7) side：It is many parallel rod-like structures based on safe blind (7), is examined according in edge image
The many straightways being parallel to each other measured, judge the folding and unfolding state of safe blind (7)；It is irregular curve based on human body contour outline,
The irregular contour detected in edge image is determined as occupant (8), the standing place of occupant (8) is judged；
(c) according to the edge image of safe blind (7) side, using the profile of occupant (8) and safe blind (7), occupant (8) and
The profile hiding relation of safe blind (7), whether identification safe blind (7) all puts down, whether occupant (8) fully enters cage (1),
And control the opening and closing of audible-visual annunciator (4).
4. monitoring method according to claim 3, it is characterised in that：In the step (c), according to safe blind (7) side
Edge image, cage safety situation in place is made the following judgment：
If 1. representing, the parallel segment of safe blind (7) extends to cage (1) bottom, and is uniformly distributed, then judges safe blind
(7) put down completely；If representing, the parallel segment of safe blind (7) fails to extend to cage (1) bottom, judges safe blind
(7) fail to put down completely, processor (3) triggering audible-visual annunciator (4), the prompting safe blind (7) that sends out a warning is not put down completely；
2. on the premise of judging that safe blind (7) is all put down, if representing the parallel segment of safe blind (7) by occupant (8)
Profile blocking, that is, have occupant (8) profile be covered in represent safe blind (7) parallel segment on, then be determined with occupant (8) not
Cage (1) is fully entered, or has occupant (8) in the hole close to cage, processor (3) triggering audible-visual annunciator (4) is bright
Safety is not in place by amber light prompting occupant (8)；
3. on the premise of judging that safe blind (7) is all put down, if representing the parallel segment of safe blind (7) not by occupant
(8) profile blocking, that is, represent that the parallel segment of safe blind (7) is covered on the profile of occupant (8), then has judged occupant (8)
Through fully entering cage (1), and without occupant (8) close to cage (1), processor (3) triggering audible-visual annunciator (4) gives a green light and carried
Showing can be with clean boot cage (1).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710383372.0A CN107010522B (en) | 2017-05-26 | 2017-05-26 | A kind of vertical shaft hoist auxiliary shaft cage safe monitoring device and monitoring method in place |
| AU2017415527A AU2017415527B2 (en) | 2017-05-26 | 2017-06-20 | Safety readiness monitoring device and method for auxiliary shaft cage of shaft winder |
| PCT/CN2017/089142 WO2018214196A1 (en) | 2017-05-26 | 2017-06-20 | Safety readiness monitoring device and method for auxiliary shaft cage of shaft winder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710383372.0A CN107010522B (en) | 2017-05-26 | 2017-05-26 | A kind of vertical shaft hoist auxiliary shaft cage safe monitoring device and monitoring method in place |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107010522A true CN107010522A (en) | 2017-08-04 |
| CN107010522B CN107010522B (en) | 2019-04-30 |
Family
ID=59450884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710383372.0A Expired - Fee Related CN107010522B (en) | 2017-05-26 | 2017-05-26 | A kind of vertical shaft hoist auxiliary shaft cage safe monitoring device and monitoring method in place |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN107010522B (en) |
| AU (1) | AU2017415527B2 (en) |
| WO (1) | WO2018214196A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112978549A (en) * | 2021-02-05 | 2021-06-18 | 湖州光讯信息科技有限公司 | Elevator door supporting device |
| CN114165285A (en) * | 2021-12-12 | 2022-03-11 | 枣庄矿业(集团)有限责任公司田陈煤矿 | Signal handle hook control device for trolley on upper and lower wellhead tracks of coal mine auxiliary vertical shaft |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2161731Y (en) * | 1993-04-08 | 1994-04-13 | 范强 | Telecontrol fully automatic magnetic power operating safety door for mine pithead |
| JP2001019297A (en) * | 1999-07-08 | 2001-01-23 | Hitachi Building Systems Co Ltd | Hitting preventive device to landing door for elevator by carrier |
| CN102036899A (en) * | 2008-05-22 | 2011-04-27 | 奥蒂斯电梯公司 | Video-based system and method of elevator door detection |
| JP2011132032A (en) * | 2009-12-25 | 2011-07-07 | Hitachi Ltd | Elevator apparatus |
| CN105621188A (en) * | 2014-11-06 | 2016-06-01 | 西安众智惠泽光电科技有限公司 | Elevator safety monitoring and pre-warning system |
| JP6046284B1 (en) * | 2016-01-13 | 2016-12-14 | 東芝エレベータ株式会社 | elevator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530690A (en) * | 2012-01-07 | 2012-07-04 | 广州永日电梯有限公司 | Elevator video light curtain system for preventing pinching touch |
| CN204138069U (en) * | 2014-08-01 | 2015-02-04 | 广州市京龙工程机械有限公司 | A kind of visual open-door system of building hoist |
| CN204324665U (en) * | 2014-12-19 | 2015-05-13 | 山东科技大学 | A kind of mine cage |
| JP6046287B1 (en) * | 2016-01-13 | 2016-12-14 | 東芝エレベータ株式会社 | Elevator system |
| CN106219367B (en) * | 2016-08-05 | 2018-08-24 | 沈阳聚德视频技术有限公司 | A kind of elevator O＆M monitoring method based on intelligent vision light curtain |
-
2017
- 2017-05-26 CN CN201710383372.0A patent/CN107010522B/en not_active Expired - Fee Related
- 2017-06-20 AU AU2017415527A patent/AU2017415527B2/en not_active Ceased
- 2017-06-20 WO PCT/CN2017/089142 patent/WO2018214196A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2161731Y (en) * | 1993-04-08 | 1994-04-13 | 范强 | Telecontrol fully automatic magnetic power operating safety door for mine pithead |
| JP2001019297A (en) * | 1999-07-08 | 2001-01-23 | Hitachi Building Systems Co Ltd | Hitting preventive device to landing door for elevator by carrier |
| CN102036899A (en) * | 2008-05-22 | 2011-04-27 | 奥蒂斯电梯公司 | Video-based system and method of elevator door detection |
| JP2011132032A (en) * | 2009-12-25 | 2011-07-07 | Hitachi Ltd | Elevator apparatus |
| CN105621188A (en) * | 2014-11-06 | 2016-06-01 | 西安众智惠泽光电科技有限公司 | Elevator safety monitoring and pre-warning system |
| JP6046284B1 (en) * | 2016-01-13 | 2016-12-14 | 東芝エレベータ株式会社 | elevator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112978549A (en) * | 2021-02-05 | 2021-06-18 | 湖州光讯信息科技有限公司 | Elevator door supporting device |
| CN114165285A (en) * | 2021-12-12 | 2022-03-11 | 枣庄矿业(集团)有限责任公司田陈煤矿 | Signal handle hook control device for trolley on upper and lower wellhead tracks of coal mine auxiliary vertical shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2017415527A1 (en) | 2019-01-31 |
| AU2017415527B2 (en) | 2019-07-11 |
| CN107010522B (en) | 2019-04-30 |
| WO2018214196A1 (en) | 2018-11-29 |
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