CN108615427A - A kind of elevator laboratory teaching system and method based on virtual reality technology - Google Patents
A kind of elevator laboratory teaching system and method based on virtual reality technology Download PDFInfo
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- CN108615427A CN108615427A CN201810356311.XA CN201810356311A CN108615427A CN 108615427 A CN108615427 A CN 108615427A CN 201810356311 A CN201810356311 A CN 201810356311A CN 108615427 A CN108615427 A CN 108615427A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005516 engineering process Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 238000007689 inspection Methods 0.000 claims abstract description 8
- 239000002360 explosive Substances 0.000 claims description 30
- 238000000354 decomposition reaction Methods 0.000 claims description 28
- 238000004880 explosion Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 4
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- 208000014674 injury Diseases 0.000 abstract description 4
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- 238000010276 construction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- G—PHYSICS
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Abstract
The invention discloses a kind of elevator laboratory teaching system and method based on virtual reality technology, the described method comprises the following steps：Elevator testing model is read according to student's input selection facility information, to fictionalize the inspection scene of lift facility；Mobile message, hand information and the Viewing-angle information of acquisition student in real time, and according to the information switching virtual scene of acquisition；It guides student to test operation by director information, judges whether the checked operation of student is correct according to preset check problem, and when being out of one's reckoning, prompt operating mistake, and judge that the operation is invalid；When judging to have executed all checking procedures, elevator is prompted to inspect.The present invention has learnt the relevant knowledge of lift facility by fictionalizing lift facility, student by dismantling virtual lift facility, save instruction cost, it avoids student because the operation of error causes injury to student, improves the safety of teaching, can be widely applied to elevator inspection technology field.
Description
Technical field
The present invention relates to elevator inspection technology field more particularly to a kind of elevator laboratory teachings based on virtual reality technology
System and method.
Background technology
Today's society, elevator play the role of as a kind of vertical vehicles in people are daily very important.
There are about 3000 people, these elevators reviewers to be generally elevator relevant speciality or have phase by the elevator reviewer that need to be increased newly every year
The personnel of pass experience are into excessively professional training and examination, then have taken after elevator examines practicing requirements card, can just be engaged in elevator
It examines.Since the principle and lift facility of elevator are relatively complicated, and elevator inspection need to carry out lift facility it is deep
Could test to elevator after understanding, general elevator reviewer it should be understood that elevator host internal structure, however it is existing
Teaching method be that student is allowed directly to tear lift facility open, student one side detaching equipment, learn on one side lift facility construction and
Principle, such teaching method have following drawback：1) due to existing teacher's inadequate resource, it is impossible to give each student's hand
The introduction of handle, so student often cannot get science and correctly instruct when oneself dismantles lift facility, it is easy to damage electricity
Terraced equipment causes the problems such as equipment waste is high with instruction cost, it is also possible to the body caused by student's misoperation is to student
Injury；2) student directly tears elevator open, when encountering query difficulty, cannot answer and help, after having torn lift facility open, play
Learning effect it is little, many students can only have to have half knowledge to lift facility, and good teaching efficiency is not achieved.
Invention content
In order to solve the above-mentioned technical problem, the purpose of the present invention is to propose to a kind of more safely and effectively elevator laboratory teachings
System.
It is another object of the present invention to propose a kind of more safely and effectively elevator laboratory teaching method.
The technical solution adopted in the present invention is：
A kind of elevator laboratory teaching system based on virtual reality technology, including it is hand-held control device, control host, virtual
Display and positioning device, the control host include database module and operation control module, the operation control module
It is connect respectively with hand-held control device, virtual monitor, positioning device and database module；
The positioning device is used to acquire the mobile message of student, and the mobile message of acquisition is transferred to operation control mould
Block；
The hand-held control device is used to acquire the displacement information and action input information of student's hand, and will be collected
Information is transferred to operation control module；
The virtual monitor examines scene for playing virtual elevator, while acquiring the Viewing-angle information of student, and will adopt
The Viewing-angle information of collection is transferred to operation control module；
The database module is regarded for storing different types of elevator testing model, lift facility decomposition model and teaching
Frequently；
The operation control module is for fictionalizing lift facility and playing instructional video according to triggering information, and according to connecing
The information received judges whether the checked operation step of student is correct, and is prompted student when being out of one's reckoning.
Further, the database module includes elevator testing model database, equipment decomposition model database and teaching
Video database, the operation control module respectively with elevator testing model database, equipment decomposition model database and teaching
Video database connects；
The elevator testing model database is for storing different types of elevator testing model；
The equipment decomposition model database is used to store the decomposition model of different types of lift facility；
The instructional video database is used to store the instructional video for examining lift facility.
Further, the decomposition model of the lift facility is the three-dimensional explosive view of lift facility, in the three-dimensional explosive view
It include each model of parts of lift facility.
Further, the database module is additionally operable to storage tool instrument models and gesture motion model.
Another technical solution of the present invention is：
A kind of elevator laboratory teaching method based on virtual reality technology, includes the following steps：
Elevator testing model is read according to student's input selection facility information, to fictionalize the proving ground of lift facility
Scape；
Mobile message, hand information and the Viewing-angle information of acquisition student in real time, and according to the information switching virtual field of acquisition
Scape；
It guides student to test operation by director information, the checked operation of student is judged according to preset check problem
It is whether correct, and when being out of one's reckoning, operating mistake is prompted, and judge that the operation is invalid；
When judging to have executed all checking procedures, elevator is prompted to inspect.
Further, further include the steps that switching hand gesture, the step of switching hand gesture is：
After the displacement information and the hand information that acquire student, collected information MAP to elevator is examined in scene, and
When judging that virtual human hand touches different parts, corresponding handover trigger information is generated；
According to handover trigger information, the posture and tool instrument models of virtual human hand are replaced.
Further, further include the steps that opening decomposition model, specifically include following steps：
The decomposition model for judging whether opening elevator according to preset opening program, sets if so, reading and fictionalizing elevator
Standby three-dimensional explosive view；
Judge whether the decomposition model of closing elevator according to preset bolt down procedure, if so, closing the three-dimensional of lift facility
Explosive view, and fictionalize lift facility；
Each parts of lift facility are contained in the three-dimensional explosive view.
Further, on three-dimensional explosive view be equipped with video playing key, further include instructional video play step, specifically include with
Lower step：
Judge virtual human hand whether with video playing key contacts, if so, triggering pop-up plays video frame and plays teaching and regard
Frequently；
Judge whether virtual human hand contacts with parts, and when judging to contact, by the type component with the first display lattice
Formula is shown, and is generated corresponding video and triggered information；
Information is triggered according to video and plays the type component instructional video, and broadcasting is automatically closed after playing video and regards
Frequency frame.
Further, further include the steps that obtaining parts, specifically include following steps：
When determining virtual human hand and touching parts, which is shown with second display format, and in root
When determining the acquisition parts according to hand information, virtual human hand is changed to the parts；
The hand information of acquisition student in real time, and by collected information MAP to virtual parts, to realize
To the viewing of parts in all directions；
When determining the parts with the contact of three-dimensional explosive view, parts restore origin-location automatically, and fictionalize
Virtual human hand.
Further, the hand information includes hand displacement information and hand motion input information.
Further, the parts include independent parts and whole parts, further include the steps that subsequent explosion, specifically
Include the following steps：
When judging whether virtual human hand contacts with whole parts, which is shown with third display format；
Judge whether to carry out subsequent explosion to whole parts in conjunction with hand information and preset subsequent explosion program, if
It is the three-dimensional explosive view for reading and fictionalizing whole parts.
The beneficial effects of the invention are as follows：The present invention is by fictionalizing lift facility, and student is by examining virtual elevator to set
It is standby, learn the relevant knowledge of lift facility, without operating true lift facility, has saved instruction cost, avoid student because losing
Operation accidentally causes injury to student, improves the safety of teaching.
Description of the drawings
Fig. 1 is a kind of structure diagram of the elevator laboratory teaching system based on virtual reality technology；
Fig. 2 is a kind of step flow chart of the elevator laboratory teaching method based on virtual reality technology.
Specific implementation mode
Embodiment one
As shown in Figure 1, a kind of elevator laboratory teaching system based on virtual reality technology, including hand-held control device, control
Host, virtual monitor and positioning device processed, the control host include database module and operation control module, the fortune
Control module is calculated to connect with hand-held control device, virtual monitor, positioning device and database module respectively；
The positioning device is used to acquire the mobile message of student, and the mobile message of acquisition is transferred to operation control mould
Block；
The hand-held control device is used to acquire the displacement information and action input information of student's hand, and will be collected
Information is transferred to operation control module；
The virtual monitor examines scene for playing virtual elevator, while acquiring the Viewing-angle information of student, and will adopt
The Viewing-angle information of collection is transferred to operation control module；
The database module is regarded for storing different types of elevator testing model, lift facility decomposition model and teaching
Frequently；
The operation control module is for fictionalizing lift facility and playing instructional video according to triggering information, and according to connecing
The information received judges whether the checked operation step of student is correct, and is prompted student when being out of one's reckoning.
The operation principle of above system is：Operation control module by reading database mould elevator testing model in the block or
Equipment decomposition model, and the inspection scene of lift facility is played by virtual monitor to student, virtual in the present embodiment show
Showing that device is the VR helmets, the picture of lift facility can be seen by vision, hear the virtual sound in scene by the sense of hearing by student,
For example student can hear the sound of the collision or friction when corresponding dismounting, make student on the spot in person, more preferably in detaching equipment
Involvement teaching environment, the dismounting situation of the reality of simulation that also can be properer enhances the memory of student.Wherein, described
Viewing-angle information is the information of student's end rotation, and rotary inductor is equipped on virtual monitor, when student reverses head, rotation
Turn the rotation information of inductor acquisition student, and rotation information will have been collected and be sent to operation control module, operation control mould
Root tuber adjusts virtual scene according to rotation information, to make student feel truer.Student learns to examine in virtual environment
Lift facility, the study checking procedure include to virtually being dismantled, being installed and being detected to lift facility.Wherein,
Student dismantles virtual lift facility, dismantles on one side, learns the principle and structure of lift facility on one side, and doubtful encountering
When asking, clicks broadcasting instructional video and improve the effect of study to effectively be instructed.In real world devices disassembly process,
Some dangerous parts, such as spring can cause serious injury student if misoperation, and virtual
In scene, student performs the operation of mistake, will produce prompt, will not be damaged to student, improve safety.Because tearing open
The lift facility unloaded is virtual unit, avoids the problem of student makes a mess of lift facility, reduces the cost of teaching, learns simultaneously
Member can play instructional video when encountering query difficulty at any time, effectively answered and helped, provide the quality of teaching.
It is further used as preferred embodiment, the database module includes elevator testing model database, equipment point
Model database and instructional video database are solved, the operation control module is divided with elevator testing model database, equipment respectively
Solution model database is connected with instructional video database；
The elevator testing model database is for storing different types of elevator testing model；
The equipment decomposition model database is used to store the decomposition model of different types of lift facility；
The instructional video database is used to store the instructional video for examining lift facility.
Because elevator have Multiple Type and ladder kind, such as have machine room middling speed Sightseeing Lift, public traffic type escalator,
Indirect jacking type hydraulic elevator and dumb waiter etc., and there are many equipment, such as traction machine and motor for each elevator, so electric
Terraced testing model database storage has the distinct device of the elevator of different model, student to fictionalize different elevators by selection
Equipment is learnt.All there is the exploded view of each above-mentioned lift facility in equipment decomposition model database, student can see
See the exploded view of lift facility, the construction and principle of more intuitive understanding lift facility.It is housed in instructional video database
Corresponding instructional video, student can first watch instructional video, then practical operation study, increase the mode of learning of student, while also may be used
Effectively student is instructed, improves learning quality.
It is further used as preferred embodiment, the decomposition model of the lift facility is the three-dimensional explosion of lift facility
Scheme, includes each model of parts of lift facility in the three-dimensional explosive view.
In the present embodiment, the decomposition model of elevator shows that student is clear that in the form of three-dimensional explosive view
Lift facility so parts, student can watch the composed structure of lift facility by shift position and visual angle, can
Learn parts therein with careful viewing, parts therein can also be obtained and carry out detailed observational learning.Lift facility
By being shown in the form of three-dimensional explosive view, it more can intuitively allow student to understand equipment construction, facilitate student to learn, student can obtain
It takes parts progress is comprehensive to view and emulate and learn, more really imitates practical operation, improve student's enthusiasm of student, improve and learn
Practise effect.
It is further used as preferred embodiment, the database module is additionally operable to storage tool instrument models and gesture is dynamic
Make model.
For student in detaching equipment, when virtual human hand touches the different parts of equipment, virtual human hand can be according to not
Same triggering switching virtual human hand gesture and extracting tool, for example when virtual human hand touches nut, automatically switching is grown up
The hand-tight model for holding spanner.By switching different models, allows student to feel that virtual scene is truer, preferably incorporate virtual
In scene, to reach better learning effect.
Embodiment two
As shown in Fig. 2, a kind of elevator laboratory teaching method based on virtual reality technology, includes the following steps：
S1, elevator testing model is read according to student's input selection facility information, to fictionalize the inspection of lift facility
Scene.
Mobile message, hand information and the Viewing-angle information of S2, in real time acquisition student, and according to the information switching virtual of acquisition
Scene.The hand information includes hand displacement information and hand motion input information.
Wherein, button is equipped in hand-held control device, student can be by keying input information, for example student is by pressing
Key can carry out selecting virtual different lift facility.
S3, switching hand gesture.Wherein, S3 includes step S31~S32：
After S31, the displacement information for acquiring student and hand information, collected information MAP to elevator is examined into scene
On, and when judging that virtual human hand touches different parts, generate corresponding handover trigger information.
S32, according to handover trigger information, replace the posture and tool instrument models of virtual human hand.
S4, decomposition model is opened.Wherein S4 includes S41~S42：
S41, judged whether to open the decomposition model of elevator according to preset opening program, if so, reading and fictionalizing electricity
The three-dimensional explosive view of terraced equipment.Video playing key is equipped on three-dimensional explosive view.Elevator is contained in the three-dimensional explosive view to set
Standby each parts.In the present embodiment, preset opening program is：When system senses that virtual human hand connects with lift facility
It touches, and student pins acknowledgement key by hand-held control device, and slides preset distance, you can three-dimensional explosive view is opened in triggering.
The S41 includes A1~A3：
A1, judge virtual human hand whether with video playing key contacts, if so, triggering pop-up plays and video frame and plays teaching
Video.
When virtual human hand touches video playing key, triggering system pop-up plays video frame, while operation control module
Corresponding data are read from instructional video database, play instructional video, the instructional video played herein is how to instruct student
The video of lift facility is dismantled, while when which parts video talk about in playing process, corresponding zero in three-dimensional explosive view
Component can highlight.
A2, judge whether virtual human hand contacts with parts, and when judging to contact, by the type component with the first display
Format is shown, and is generated corresponding video and triggered information.
A3, the type component instructional video is played according to video triggering information, and is automatically closed and broadcasts after playing video
Put video frame.
When instructional video playing, when sensing that virtual human hand touches certain parts, corresponding triggering is produced
Information, operation control module obtain the religion of the parts according to corresponding information according to the triggering information from instructional video database
Video is learned, and after automatic play, closes and plays video frame.In the present embodiment, the first display format is highlighted.
S42, judged whether to close the decomposition model of elevator according to preset bolt down procedure, if so, closing lift facility
Three-dimensional explosive view, and fictionalize lift facility.
In the present embodiment, preset bolt down procedure is：When system senses that virtual human hand is contacted with three-dimensional explosive view, and
Student pins acknowledgement key by hand-held control device, and slides preset distance, i.e. three-dimensional explosive view is closed in triggering.
S5, operation of being tested by director information guide student, the inspection of student is judged according to preset check problem
Whether operation is correct, and when being out of one's reckoning, and prompts operating mistake, and judge that the operation is invalid.
S6, when judge executed all checking procedures when, prompt elevator inspected.
By the above method, student learns to examine lift facility, the study checking procedure in virtual environment to include pair
Virtually dismounting is carried out to lift facility and lift facility install.Wherein, student can set virtual elevator
It is standby to be dismantled, it dismantles on one side, learns the construction and principle of lift facility on one side, when encountering query, broadcasting religion can be clicked
Video is learned to avoid the dismounting of blindness to effectively be instructed and be answered and be ignorant of its principle, improve the effect of teaching.
Since equipment is virtual, the problem of student makes a mess of lift facility is avoided, reduces the cost of teaching, and will not be because of school work
Misoperation and cause damages to student.In addition, student is learnt by playing instructional video, constantly answered without teacher,
Reduce the workload of teacher.
Embodiment three
A kind of elevator laboratory teaching method based on virtual reality technology of the present embodiment, it is described compared with embodiment two
Step S4 further includes the steps that obtaining parts, which specifically includes following steps B1~B3：
B1, when determining virtual human hand and touching parts, which is shown with second display format, and
When determining the acquisition parts according to hand information, virtual human hand is changed to the parts.
The hand information of B2, in real time acquisition student, and by collected information MAP to virtual parts, to real
The now viewing to parts in all directions.
B3, when determining the parts with the contact of three-dimensional explosive view, parts restore origin-location automatically, and virtual
Go out virtual human hand.
Student can obtain parts, and by the rotation of hand-held control device parts are carried out with 360 ° of viewing, side
Just student deepens impression and interest of the student to study to the clearer understanding of parts.
Example IV
A kind of elevator laboratory teaching method based on virtual reality technology of the present embodiment, it is described compared with embodiment two
Parts include independent parts and whole parts, and the step S4 further includes the steps that subsequent explosion, which specifically wraps
Include following steps C1~C2：
C1, when judging whether virtual human hand contacts with whole parts, which is shown with third display format
Show.
C2, judge whether to carry out subsequent explosion to whole parts in conjunction with hand information and preset subsequent explosion program,
If so, reading and fictionalizing the three-dimensional explosive view of whole parts.
The entirety parts only need to be removed integrally, in reality testing without dismantling inside, so quick-fried in equipment
In fried figure, whole parts occur with an entirety, so that explosive view is more neat, facilitates the study of student and checks.
When some entirety parts students want to study in depth, second can be carried out to whole parts and exploded, to obtain whole zero
The explosive view of component.In the present embodiment, when determining virtual human hand and touching whole parts, whole parts can be high
Bright, student can be by drawing after pressing the confirmation button on hand-held control device, you can triggers the secondary of whole parts
Explosion.By subsequent explosion, it is more conducive to the study of student.
It is to be illustrated to the preferable implementation of the present invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations or be replaced under the premise of without prejudice to spirit of that invention
It changes, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (10)
1. a kind of elevator laboratory teaching system based on virtual reality technology, which is characterized in that including hand-held control device, control
Host, virtual monitor and positioning device, the control host include database module and operation control module, the operation
Control module is connect with hand-held control device, virtual monitor, positioning device and database module respectively；
The positioning device is used to acquire the mobile message of student, and the mobile message of acquisition is transferred to operation control module；
The hand-held control device is used to acquire the displacement information and action input information of student's hand, and by collected information
It is transferred to operation control module；
The virtual monitor examines scene for playing virtual elevator, while acquiring the Viewing-angle information of student, and by acquisition
Viewing-angle information is transferred to operation control module；
The database module is for storing different types of elevator testing model, lift facility decomposition model and instructional video；
The operation control module is for fictionalizing lift facility and playing instructional video according to triggering information, and according to receiving
Information judge whether the checked operation step of student correct, and student is prompted when being out of one's reckoning.
2. a kind of elevator laboratory teaching system based on virtual reality technology according to claim 1, which is characterized in that institute
It includes elevator testing model database, equipment decomposition model database and instructional video database, the fortune to state database module
Control module is calculated to connect with elevator testing model database, equipment decomposition model database and instructional video database respectively；
The elevator testing model database is for storing different types of elevator testing model；
The equipment decomposition model database is used to store the decomposition model of different types of lift facility；
The instructional video database is used to store the instructional video for examining lift facility.
3. a kind of elevator laboratory teaching system based on virtual reality technology according to claim 2, which is characterized in that institute
The decomposition model for stating lift facility is the three-dimensional explosive view of lift facility, includes each of lift facility in the three-dimensional explosive view
Model of parts.
4. a kind of elevator laboratory teaching system based on virtual reality technology according to claim 3, which is characterized in that institute
It states database module and is additionally operable to storage tool instrument models and gesture motion model.
5. a kind of elevator laboratory teaching method based on virtual reality technology, which is characterized in that include the following steps：
Elevator testing model is read according to student's input selection facility information, to fictionalize the inspection scene of lift facility；
Mobile message, hand information and the Viewing-angle information of acquisition student in real time, and according to the information switching virtual scene of acquisition；
Guide student to test operation by director information, according to preset check problem judge student checked operation whether
Correctly, and when being out of one's reckoning, operating mistake is prompted, and judge that the operation is invalid；
When judging to have executed all checking procedures, elevator is prompted to inspect.
6. a kind of elevator laboratory teaching method based on virtual reality technology according to claim 5, which is characterized in that also
Include the steps that switching hand gesture, the step of switching hand gesture is：
After the displacement information and the hand information that acquire student, collected information MAP to elevator is examined in scene, and is being sentenced
When the virtual human hand that breaks touches different parts, corresponding handover trigger information is generated；
According to handover trigger information, the posture and tool instrument models of virtual human hand are replaced.
7. a kind of elevator laboratory teaching method based on virtual reality technology according to claim 6, which is characterized in that also
Include the steps that opening decomposition model, specifically includes following steps：
The decomposition model for judging whether opening elevator according to preset opening program, if so, reading and fictionalizing lift facility
Three-dimensional explosive view；
Judge whether the decomposition model of closing elevator according to preset bolt down procedure, if so, closing the three-dimensional explosion of lift facility
Figure, and fictionalize lift facility；
Each parts of lift facility are contained in the three-dimensional explosive view.
8. a kind of elevator laboratory teaching method based on virtual reality technology according to claim 7, which is characterized in that
Three-dimensional explosive view is equipped with video playing key, further includes that instructional video plays step, specifically includes following steps：
Judge virtual human hand whether with video playing key contacts, if so, triggering pop-up plays and video frame and plays instructional video；
Judge whether virtual human hand contacts with parts, and judge contact when, by the type component with the first display format into
Row display, and generate corresponding video and trigger information；
Information is triggered according to video and plays the type component instructional video, and broadcasting video is automatically closed after playing video
Frame.
9. a kind of elevator laboratory teaching method based on virtual reality technology according to claim 7, which is characterized in that also
Include the steps that obtaining parts, specifically includes following steps：
When determining virtual human hand and touching parts, which is shown with second display format, and according to hand
When portion's information determines the acquisition parts, virtual human hand is changed to the parts；
The hand information of acquisition student in real time, and by collected information MAP to virtual parts, to realize to zero
The viewing of component in all directions；
When determining the parts with the contact of three-dimensional explosive view, parts restore origin-location automatically, and fictionalize virtual
Human hand.
10. a kind of elevator laboratory teaching method based on virtual reality technology according to claim 7, which is characterized in that
The parts include independent parts and whole parts, further include the steps that subsequent explosion, specifically include following steps：
When judging whether virtual human hand contacts with whole parts, which is shown with third display format；
Judge whether to carry out subsequent explosion to whole parts in conjunction with hand information and preset subsequent explosion program, if so, reading
Take and fictionalize the three-dimensional explosive view of whole parts.
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| CN110689788A (en) * | 2019-11-21 | 2020-01-14 | 北京智联友道科技有限公司 | Elevator control system and using method |
| CN111477042A (en) * | 2020-02-27 | 2020-07-31 | 宁波新文三维股份有限公司 | Safety education interaction system based on augmented reality and interaction control method thereof |
| CN111968445A (en) * | 2020-09-02 | 2020-11-20 | 上海上益教育设备制造有限公司 | Elevator installation teaching virtual reality system |
| CN112002170A (en) * | 2020-09-02 | 2020-11-27 | 上海上益教育设备制造有限公司 | Elevator dimension protection teaching virtual reality system |
| CN112002153A (en) * | 2020-09-09 | 2020-11-27 | 广州特种机电设备检测研究院 | Elevator inspection training examination system and method with high safety |
| CN113255158A (en) * | 2021-06-16 | 2021-08-13 | 广州广日电梯工业有限公司 | Elevator installation guidance method and elevator installation guidance device |
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Effective date of registration: 20240529 Address after: 510663 No.9, Keke Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Special Equipment Testing and Research Institute (Guangzhou Special Equipment Accident Investigation Technology Center Guangzhou Elevator Safety Operation Monitoring Center) Country or region after: China Address before: 6 / F, Liurong building, 65 Liurong Road, Yuexiu District, Guangzhou, Guangdong 510000 Patentee before: GUANGZHOU ACADEMY OF SPECIAL EQUIPMENT INSPECTION & TESTING Country or region before: China |