CN108569605B - The elevator of detection device with detection hoistway door croquet displacement - Google Patents
The elevator of detection device with detection hoistway door croquet displacement Download PDFInfo
- Publication number
- CN108569605B CN108569605B CN201810298621.0A CN201810298621A CN108569605B CN 108569605 B CN108569605 B CN 108569605B CN 201810298621 A CN201810298621 A CN 201810298621A CN 108569605 B CN108569605 B CN 108569605B
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- Prior art keywords
- door
- elevator
- croquet
- detection
- shell
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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
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/06—Door or gate operation of sliding doors
- B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
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- Elevator Door Apparatuses (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The present invention relates to elevator technology fields.The elevator of detection device with detection hoistway door croquet displacement, including an elevator main body, elevator main body includes elevator hall's gate linkage, elevator hall's gate linkage includes installation door opening machine for elevator on the elevator car and the layer door gear that is mounted on hoistway door, door opening machine for elevator includes door knife, layer door gear includes the croquet with the linkage of door knife, further includes an image detecting system；Image detecting system includes a photographic device and image processing system, and photographic device connects image processing system；Image detecting system further includes a shell, and photographic device and image processing system are equipped in shell；Offer light-transmitting opening on shell, the camera shooting direction of photographic device towards light-transmitting opening, and the camera shooting direction of photographic device through light-transmitting opening towards croquet；Shell is fixed on a knife.This patent, which passes through, is installed to the image detecting system for being conventionally used to detection displacement on knife, and then realizes the displacement monitoring to croquet.
Description
Technical field
The present invention relates to field of mechanical technique, and in particular to elevator.
Background technique
Elevator transports the vehicles of passenger as building up and down, and importance is self-evident, but elevator is as electromechanical
Class special equipment has country's design and manufacturer's standard and test stone, and as the ordinary vehicles run up and down, movement
Modular construction needs to adjust in equipment maintenance must occur displacement when used for a long time, but often because moving component displacement is being tieed up
Occur before protecting operation, elevator is caused to occur producing elevator faults because displacement occurs in moving component.
Wherein, elevator faults just are generated including the croquet displacement in hall door in elevator faults.
In elevator hall's gate linkage, the door knife on door opening machine for elevator will drive the croquet in hall door and do relative motion,
The relative motion of croquet will drive hall door device connector and hall door is opened, but elevator door knife touching in upper and lower operation in order to prevent
Encounter croquet, general croquet width is less than door knife inner width, but when the hall door operation long period or is influenced back door by improper external force
Ball is subjected to displacement, and door knife of the elevator in upper and lower operational process on elevator cage door, which can touch croquet, leads to hall door door lock theft-resistant link chain
, there are elevator faults in movement.
Summary of the invention
The object of the present invention is to provide have detection hoistway door croquet displacement detection device elevator, solve with
At least one upper technical problem.
Technical problem solved by the invention can be realized using following technical scheme:
The elevator of detection device with detection hoistway door croquet displacement, including an elevator main body, the elevator main body
Including elevator hall's gate linkage, elevator hall's gate linkage includes that the elevator of an installation on the elevator car is opened
Door machine and the layer door gear being mounted on hoistway door, the door opening machine for elevator include door knife, the layer door gear include with
The croquet of door knife linkage, which is characterized in that further include an image detecting system；
The image detecting system includes a photographic device and image processing system, and the photographic device connects the figure
As processing system；
The image detecting system further includes a shell, and the photographic device and image procossing are equipped in the shell
System；
Offer light-transmitting opening on the shell, the camera shooting direction of the photographic device described is taken the photograph towards the light-transmitting opening
As device camera shooting direction through the light-transmitting opening towards the croquet；
The shell is fixed on the door knife.
The creation point of this patent is: (1) by the way that the image detecting system for being conventionally used to detection displacement is installed to a knife
On, and then realize the displacement monitoring to croquet.(2) by shell, and then while the normal monitoring of realization photographic device, protection
Image detecting system.
It is towards front with the monitoring direction of the photographic device, the light-transmitting opening is provided with the front end of the shell；
Through-hole is provided on the door knife, the central axial direction of through-hole is front-rear direction；
The through-hole includes the front and rear portion that front and back is arranged, and the internal diameter of the front is less than the internal diameter at the rear portion；
The front end of the shell is equipped with the outer wall to match with the inner wall of the through-hole.
This patent improves consolidating for shell by the structure of optimization through-hole convenient for increasing the contact area between shell and through-hole
Determine effect.
The protrusion height that through-hole is protruded outside the front end of the shell is not more than 3mm.
This patent avoids shell from interfering with the movement that a knife-band moves croquet by the protrusion height of limitation shell.
The outer wall of the shell and the inner wall of the through-hole are fixed by an adhesive.Guarantee the fixed effect of shell.
As a preferred embodiment, a lens are installed, the lens are close to the side of photographic device in the light-transmitting opening
It carves and is equipped with cross mark；
Coat of colo(u)r cruciferous is coated on the croquet, using the coat of colo(u)r as the positioning identifier of the croquet.
Image processing system analysis photographic device collects the contraposition of coat of colo(u)r and cross mark on picture on croquet
Situation, and then judge whether croquet shifts.
As another preferred embodiment, the center of the croquet is embedded with linear laser transmitter, linear laser transmitter
The direction of the launch backwards；
One anti-dazzling screen is installed, the center of the anti-dazzling screen is equipped with to be issued for linear laser transmitter in the light-transmitting opening
The channel that passes through of laser, the laser that linear laser transmitter issues acquires by the channel by photographic device；
Image processing system judges whether croquet shifts in laser according to whether photographic device acquires.
Realize the precision of croquet displacement judgement.
The coat of colo(u)r is coated with a fluoresent coating far from the side of croquet.Improve the marking effect at the bad place of light.
Pass through a shading pipe connection between the light-transmitting opening and the light inlet of the photographic device；
The shading pipe includes a pvc pipe body and the chopping mechanism for being covered on wall in pvc pipe body, the chopping mechanism packet
A basalt fibre net and black glue coating are included, the basalt fibre network folder is located at the black glue coating and the pvc pipe body
Between, the black glue coating is partially submerged into the mesh of basalt fibre net.
It is easy to implement light-proofness, guarantees the collection effect of photographic device.
The shell is equipped with a USB jack, using the USB jack as the signal output end of described image processing system.
The hot plug being easy to implement between image processing system signal output end and other devices, so convenient for shell can
Disassembly.
The USB jack is connected with the signal input part of an automatic telescopic take-up reel, and the automatic telescopic take-up reel is fixed
On the door knife, a data line, one end of the data line and elevator controlling system are arranged on the automatic telescopic take-up reel
System is connected.
This patent passes through the setting of automatic telescopic take-up reel, is easy to implement shell spacing model different from elevator control system
It encloses.
The signal input part of the automatic telescopic take-up reel is a USB plug to match with the USB jack；
The automatic telescopic take-up reel is detachably connected with door knife by screw.
This patent improves automatic telescopic take-up by the grafting of USB jack and USB plug and the combination of screw
The fixed effect of disk.
Hoistway door includes front and back two layers of door-plate being arranged and the wave-shape board being folded between two layers of door-plate；
Two layers of door-plate is respectively the front door for being located at front side and the Rear Door positioned at rear side；
At least three are surrounded between the front side and front door of the wave-shape board independently of each other and are stored with the close of inert gas
Seal space；
At least three envelopes that are mutually indepedent and being stored with inert gas are surrounded between the rear side and Rear Door of the wave-shape board
Close space.
Convenient for guaranteeing that the intensity of hoistway door increases the explosion-proof flame-retardant of hoistway door by the introducing of inert gas.
The front door is front door made of heat-resistant fireproof material；
The Rear Door is Rear Door made of heat-resistant fireproof material；
Air hole is offered on the front door and Rear Door, with the air hole on front door for preceding air hole, after
Air hole on door-plate is rear air hole；
Heat molten material is filled in the preceding air hole and the rear air hole；
It further include an air charging system, the air charging system includes the air accumulator and appendix for storing inert gas,
The appendix includes a main tracheae and Liang Ge branch tracheae, and one end of the main tracheae is connected with the gas outlet of air accumulator,
The other end of the main tracheae is separately connected two points of bronchial inlet ends, and Liang Ge branch tracheae is equipped at least three outlets
Mouthful；
Liang Ge branch tracheae is respectively preceding branch's tracheae and rear branch's tracheae；
Gas outlet and sealing space on preceding branch's tracheae, which correspond, to be connected；
The gas outlet on branch's tracheae and enclosure space, which correspond, afterwards is connected；
Preceding branch's tracheae is equipped with the preceding solenoid valve of control gas path on-off, is equipped with preceding air pressure sensing in each sealing space
Device；
Preceding baroceptor connects a microprocessor system, and the microprocessor system connects the preceding solenoid valve；
Branch's tracheae is equipped with the rear solenoid valve of control gas path on-off afterwards, is equipped with rear air pressure sensing in each enclosure space
Device；
Baroceptor connects the microprocessor system, electromagnetism after the microprocessor system connection is described afterwards
Valve.
After fire spreading to front door causes the preheating molten material of the air hole on front door to melt, baroceptor
Monitor the air pressure change in enclosure space, solenoid valve is opened before controlling, and realizes inert gas in a steady stream constantly from front door
It is oozed out in air hole, realizes the effect for hindering the intensity of a fire.
When the intensity of a fire causes from Rear Door, is constantly oozed out in a steady stream from the air hole on Rear Door by inert gas, realize resistance
Hinder the effect of the intensity of a fire.
Detailed description of the invention
A kind of schematic diagram when Fig. 1 is present invention monitoring goal；
Fig. 2 is the partial sectional view of image detecting system of the present invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating that the present invention is further explained.
Referring to Fig.1, Fig. 2, the elevator for the detection device that there is detection hoistway door croquet 3 to shift, including an elevator main body,
Elevator main body includes elevator hall's gate linkage, and elevator hall's gate linkage includes the electricity of an installation on the elevator car
Terraced door lifter 2 and the layer door gear 1 being mounted on hoistway door, door opening machine for elevator 2 include door knife 4, layer door gear 1 include with
The croquet 3 that door knife 4 links, further includes an image detecting system；Image detecting system includes a photographic device 8 and image procossing
System 9, photographic device 8 connect image processing system 9；Image detecting system further includes a shell 5, is equipped with camera shooting in shell 5
Device and image processing system；Light-transmitting opening is offered on shell 5, the camera shooting direction of photographic device is imaged towards light-transmitting opening
The camera shooting direction of device is through light-transmitting opening towards croquet 3；Shell 5 is fixed on a knife 4.The creation point of this patent is: (1) passing through
The image detecting system for being conventionally used to detection displacement is installed on a knife 4, and then realizes the displacement monitoring to croquet 3.(2) lead to
While crossing shell 5, and then realize the normal monitoring of photographic device, image detecting system is protected.
It is towards front with the monitoring direction of photographic device, light-transmitting opening is provided with the front end of shell 5；It is provided on the door knife
Through-hole, the central axial direction of through-hole are front-rear direction；Through-hole includes the front and rear portion that front and back is arranged, and the internal diameter of front is less than
The internal diameter at rear portion；The front end of shell 5 is equipped with the outer wall to match with the inner wall of through-hole.This patent passes through the structure of optimization through-hole,
Convenient for increasing the contact area between shell 5 and through-hole, the fixed effect of shell 5 is improved.
The protrusion height that through-hole is protruded outside the front end of shell 5 is not more than 3mm.This patent is high by the protrusion of limitation shell 5
Degree avoids shell 5 from interfering with the movement that a knife 4 drives croquet 3.
The outer wall of shell 5 and the inner wall of through-hole are fixed by an adhesive.Guarantee the fixed effect of shell 5.
As a preferred embodiment, a lens 7 are installed, lens 7 are carved close to the side of photographic device 8 and are equipped in light-transmitting opening
Cross mark；Coat of colo(u)r cruciferous is coated on croquet 3, using coat of colo(u)r as the positioning identifier of croquet 3.Image procossing system
System analysis photographic device collects the alignment situation of coat of colo(u)r and cross mark on picture on croquet 3, and then judges croquet 3
Whether shift.
As another preferred embodiment, the center of croquet 3 is embedded with linear laser transmitter, the hair of linear laser transmitter
Penetrate direction backwards；One anti-dazzling screen is installed, the center of anti-dazzling screen is equipped with swashs for what linear laser transmitter issued in light-transmitting opening
The channel that light passes through, the laser that linear laser transmitter issues are acquired by channel by photographic device；Image processing system root
Judge whether croquet 3 shifts in laser according to whether photographic device acquires.Realize the precision of the displacement judgement of croquet 3.Coat of colo(u)r
Side far from croquet 3 is coated with a fluoresent coating.Improve the marking effect at the bad place of light.
Pass through a shading pipe connection between light-transmitting opening and the light inlet of photographic device；Shading pipe include a pvc pipe body and
It is covered on the chopping mechanism of wall in pvc pipe body, chopping mechanism includes a basalt fibre net and black glue coating, basalt fibre
Network folder is located between black glue coating and pvc pipe body, and black glue coating is partially submerged into the mesh of basalt fibre net.It is easy to implement screening
Photosensitiveness guarantees the collection effect of photographic device.
Shell 5 is equipped with a USB jack 10, is the signal output end of image processing system with USB jack 10.It is easy to implement
Hot plug between image processing system signal output end and other devices, and then convenient for the detachable of shell 5.
USB jack is connected with the signal input part of an automatic telescopic take-up reel, and automatic telescopic take-up reel is fixed on a knife 4
On, a data line is arranged on automatic telescopic take-up reel, one end of data line is connected with elevator control system.This patent passes through certainly
The setting of dynamic flexible take-up reel, is easy to implement the spacing range different from elevator control system 6 of shell 5.
The signal input part of automatic telescopic take-up reel is a USB plug to match with USB jack；Automatic telescopic take-up reel
It is detachably connected with door knife 4 by screw.This patent passes through the grafting of USB jack and USB plug and the combination of screw, into
And improve the fixed effect of automatic telescopic take-up reel.
Hoistway door includes front and back two layers of door-plate being arranged and the wave-shape board being folded between two layers of door-plate；Two layers
Plate is respectively the front door for being located at front side and the Rear Door positioned at rear side；It is surrounded at least between the front side and front door of wave-shape board
Three sealing spaces that are mutually indepedent and being stored with inert gas；At least three phases are surrounded between the rear side of wave-shape board and Rear Door
Mutual independence and the enclosure space for being stored with inert gas.Convenient for guaranteeing the intensity of hoistway door, by the introducing of inert gas, increase
Add the explosion-proof flame-retardant of hoistway door.
Front door is front door made of heat-resistant fireproof material；Rear Door is back door made of heat-resistant fireproof material
Plate；Air hole is offered on front door and Rear Door, with the air hole on front door for preceding air hole, with saturating on Rear Door
Stomata is rear air hole；Heat molten material is filled in preceding air hole and rear air hole；It further include an air charging system, inflation
Device includes the air accumulator and appendix for storing inert gas, and appendix includes a main tracheae and Liang Ge branch gas
Pipe, one end of main tracheae are connected with the gas outlet of air accumulator, and the other end of main tracheae is separately connected two points of bronchial air inlets
End, Liang Ge branch tracheae are equipped at least three gas outlets；Liang Ge branch tracheae is respectively preceding branch's tracheae and rear branch's gas
Pipe；Gas outlet and sealing space on preceding branch's tracheae, which correspond, to be connected；Gas outlet on branch's tracheae and enclosure space afterwards
Correspond conducting；Preceding branch's tracheae is equipped with the preceding solenoid valve of control gas path on-off, is equipped with preceding gas in each sealing space
Pressure sensor；Preceding baroceptor connects a microprocessor system, solenoid valve before microprocessor system connects；Branch's gas afterwards
Pipe is equipped with the rear solenoid valve of control gas path on-off, is equipped with rear baroceptor in each enclosure space；Baroceptor afterwards
Connect microprocessor system, solenoid valve after microprocessor system connection.When fire spreading to front door causes on front door
Air hole the fusing of preheating molten material after, baroceptor monitors the air pressure change in enclosure space, electromagnetism before controlling
Valve is opened, and is realized that inert gas is constantly oozed out from the air hole of front door in a steady stream, is realized the effect for hindering the intensity of a fire.The intensity of a fire from
When Rear Door causes, is constantly oozed out in a steady stream from the air hole on Rear Door by inert gas, realize the effect for hindering the intensity of a fire.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. having the elevator of the detection device of detection hoistway door croquet displacement, including an elevator main body, the elevator main body packet
Elevator hall's gate linkage is included, elevator hall's gate linkage includes the door-opened elevator of an installation on the elevator car
Machine and the layer door gear being mounted on hoistway door, the door opening machine for elevator include door knife, and the layer door gear includes and door
The croquet of knife linkage, which is characterized in that further include an image detecting system；
The image detecting system includes a photographic device and image processing system, and the photographic device connects at described image
Reason system；
The image detecting system further includes a shell, and the photographic device and image procossing system are equipped in the shell
System；
Light-transmitting opening is offered on the shell, the camera shooting direction of the photographic device is towards the light-transmitting opening, and the camera shooting fills
The camera shooting direction set is through the light-transmitting opening towards the croquet；
The shell is fixed on the door knife.
2. the elevator of the detection device with detection hoistway door croquet displacement according to claim 1, it is characterised in that:
It is towards front with the monitoring direction of the photographic device, the light-transmitting opening is provided with the front end of the shell；
Through-hole is provided on the door knife, the central axial direction of the through-hole is front-rear direction；
The through-hole includes the front and rear portion that front and back is arranged, and the internal diameter of the front is less than the internal diameter at the rear portion；
The front end of the shell is equipped with the outer wall to match with the inner wall of the through-hole.
3. the elevator of the detection device with detection hoistway door croquet displacement according to claim 1, it is characterised in that:
One lens are installed, the lens are carved close to the side of photographic device is equipped with cross mark in the light-transmitting opening；
Coat of colo(u)r cruciferous is coated on the croquet, using the coat of colo(u)r as the positioning identifier of the croquet.
4. the elevator of the detection device with detection hoistway door croquet displacement according to claim 1, it is characterised in that:
The center of the croquet is embedded with linear laser transmitter, and the direction of the launch of linear laser transmitter is backwards；
One anti-dazzling screen is installed, the center of the anti-dazzling screen is equipped with swashs for what linear laser transmitter issued in the light-transmitting opening
The channel that light passes through, the laser that linear laser transmitter issues are acquired by the channel by photographic device；
Image processing system judges whether croquet shifts in laser according to whether photographic device acquires.
5. the elevator of the detection device with detection hoistway door croquet displacement according to claim 1, it is characterised in that:
Pass through a shading pipe connection between the light-transmitting opening and the light inlet of the photographic device；
The shading pipe includes a pvc pipe body and the chopping mechanism for being covered on wall in pvc pipe body, and the chopping mechanism includes one
Basalt fibre net and black glue coating, the basalt fibre network folder are located between the black glue coating and the pvc pipe body,
The black glue coating is partially submerged into the mesh of basalt fibre net.
6. the elevator of the detection device with detection hoistway door croquet displacement according to claim 2, it is characterised in that:
The protrusion height that through-hole is protruded outside the front end of the shell is not more than 3mm.
7. the elevator of the detection device with detection hoistway door croquet displacement according to claim 1, it is characterised in that:
The shell is equipped with a USB jack, using the USB jack as the signal output end of described image processing system.
8. the elevator of the detection device with detection hoistway door croquet displacement according to claim 7, it is characterised in that:
The USB jack is connected with the signal input part of an automatic telescopic take-up reel, and the automatic telescopic take-up reel is fixed on the door
On knife, a data line is arranged on the automatic telescopic take-up reel, one end of the data line is connected with elevator control system.
9. the elevator of the detection device with detection hoistway door croquet displacement according to claim 8, it is characterised in that:
The signal input part of the automatic telescopic take-up reel is a USB plug to match with the USB jack；
The automatic telescopic take-up reel is detachably connected with door knife by screw.
10. the elevator of the detection device with detection hoistway door croquet displacement according to claim 1, feature exist
In: hoistway door includes two layers of door-plate that a front and back is arranged and the wave-shape board being folded between two layers of door-plate；
Two layers of door-plate is respectively the front door for being located at front side and the Rear Door positioned at rear side；
It is empty that at least three sealings that are mutually indepedent and being stored with inert gas are surrounded between the front side and front door of the wave-shape board
Between；
It is empty that at least three closings that are mutually indepedent and being stored with inert gas are surrounded between the rear side and Rear Door of the wave-shape board
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810298621.0A CN108569605B (en) | 2018-04-04 | 2018-04-04 | The elevator of detection device with detection hoistway door croquet displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810298621.0A CN108569605B (en) | 2018-04-04 | 2018-04-04 | The elevator of detection device with detection hoistway door croquet displacement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108569605A CN108569605A (en) | 2018-09-25 |
| CN108569605B true CN108569605B (en) | 2019-08-13 |
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ID=63574758
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810298621.0A Active CN108569605B (en) | 2018-04-04 | 2018-04-04 | The elevator of detection device with detection hoistway door croquet displacement |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114852808B (en) * | 2022-05-30 | 2024-01-12 | 广州广日电梯工业有限公司 | Elevator leveling control system, control method and control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998015486A1 (en) * | 1996-10-07 | 1998-04-16 | Vertisys, Inc. | Light duty elevator door operator |
| CN201358115Y (en) * | 2008-12-25 | 2009-12-09 | 上海三菱电梯有限公司 | Asynchronous gate knife of elevator door motor |
| CN101922915A (en) * | 2009-06-15 | 2010-12-22 | 湖南科创信息技术股份有限公司 | Contact network key position dynamic offset detection method and device thereof |
| CN103162624A (en) * | 2013-03-13 | 2013-06-19 | 邱建 | Digital absolute position and displacement detection system and implementation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723605B (en) * | 2013-09-23 | 2015-08-26 | 西子奥的斯电梯有限公司 | The asynchronous door cutter of the integrated car door lock of a kind of elevator |
-
2018
- 2018-04-04 CN CN201810298621.0A patent/CN108569605B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998015486A1 (en) * | 1996-10-07 | 1998-04-16 | Vertisys, Inc. | Light duty elevator door operator |
| CN201358115Y (en) * | 2008-12-25 | 2009-12-09 | 上海三菱电梯有限公司 | Asynchronous gate knife of elevator door motor |
| CN101922915A (en) * | 2009-06-15 | 2010-12-22 | 湖南科创信息技术股份有限公司 | Contact network key position dynamic offset detection method and device thereof |
| CN103162624A (en) * | 2013-03-13 | 2013-06-19 | 邱建 | Digital absolute position and displacement detection system and implementation method thereof |
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| Publication number | Publication date |
|---|---|
| CN108569605A (en) | 2018-09-25 |
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