CN108615427B - Elevator inspection teaching system and method based on virtual reality technology - Google Patents
Elevator inspection teaching system and method based on virtual reality technology Download PDFInfo
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- CN108615427B CN108615427B CN201810356311.XA CN201810356311A CN108615427B CN 108615427 B CN108615427 B CN 108615427B CN 201810356311 A CN201810356311 A CN 201810356311A CN 108615427 B CN108615427 B CN 108615427B
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Abstract
The invention discloses an elevator inspection teaching system and method based on a virtual reality technology, wherein the method comprises the following steps: reading an elevator inspection model according to the information of the student input selection equipment, so as to virtualize an inspection scene of the elevator equipment; acquiring the movement information, hand information and visual angle information of a student in real time, and switching a virtual scene according to the acquired information; guiding the student to carry out inspection operation through the guiding information, judging whether the inspection operation of the student is correct according to a preset inspection program, and prompting an operation error and judging that the operation is invalid when the inspection operation of the student is incorrect; when all the inspection steps are judged to be executed, the elevator inspection is prompted to be completed. According to the invention, through the virtual elevator output equipment, students learn the relevant knowledge of the elevator equipment by disassembling the virtual elevator equipment, so that the teaching cost is saved, the students are prevented from being injured due to error operation, the teaching safety is improved, and the method can be widely applied to the technical field of elevator inspection.
Description
Technical Field
The invention relates to the technical field of elevator inspection, in particular to an elevator inspection teaching system and method based on a virtual reality technology.
Background
In modern society, elevators play a very important role in people's daily life as a vertical vehicle. About 3000 elevator inspectors need to be newly added every year, and the elevator inspectors generally carry out professional training and examination for elevator related professionals or persons with related experience, and can carry out elevator inspection after taking elevator inspection qualification certificates. Because the principle of elevator and elevator equipment are relatively more complicated, and the elevator inspection can be examined after need going on deep understanding to elevator equipment, and general elevator inspection personnel need to know the inner structure of elevator host computer, however current teaching method lets the student directly tear down elevator equipment, and the student is on one side dismantled equipment, learns elevator equipment's structure and principle, and such teaching mode has following drawback: 1) because the existing teacher resources are insufficient and the teaching of the handle of each student is impossible, the students often cannot get scientific and correct guidance when detaching the elevator equipment by themselves, the elevator equipment is easily damaged, the problems of equipment waste, high teaching cost and the like are caused, and physical injuries to the students caused by improper operation of the students are possible; 2) the students can only know a little about the elevator equipment and can not achieve good teaching effect.
Disclosure of Invention
In order to solve the technical problem, the invention aims to provide a safer and more effective elevator inspection teaching system.
Another object of the present invention is to provide a safer and more efficient elevator inspection teaching method.
The technical scheme adopted by the invention is as follows:
an elevator inspection teaching system based on a virtual reality technology comprises a handheld control device, a control host, a virtual display and a positioning device, wherein the control host comprises a database module and an operation control module, and the operation control module is respectively connected with the handheld control device, the virtual display, the positioning device and the database module;
the positioning device is used for collecting the movement information of the student and transmitting the collected movement information to the operation control module;
the handheld control device is used for collecting the displacement information and the action input information of the hands of the student and transmitting the collected information to the operation control module;
the virtual display is used for playing a virtual elevator inspection scene, simultaneously collecting the visual angle information of the student and transmitting the collected visual angle information to the operation control module;
the database module is used for storing elevator inspection models, elevator equipment decomposition models and teaching videos of different types;
the operation control module is used for virtualizing the elevator-exiting equipment, playing a teaching video according to the trigger information, judging whether the checking operation steps of the student are correct or not according to the received information, and prompting the student when the judgment is incorrect.
Further, the database module comprises an elevator inspection model database, an equipment decomposition model database and a teaching video database, and the operation control module is respectively connected with the elevator inspection model database, the equipment decomposition model database and the teaching video database;
the elevator inspection model database is used for storing different types of elevator inspection models;
the equipment decomposition model database is used for storing decomposition models of different types of elevator equipment;
the teaching video database is used for storing teaching videos for inspecting the elevator equipment.
Further, the decomposition model of the elevator equipment is a three-dimensional explosion map of the elevator equipment, and the three-dimensional explosion map comprises models of all parts of the elevator equipment.
Further, the database module is also used for storing tool instrument models and gesture action models.
The other technical scheme adopted by the invention is as follows:
an elevator inspection teaching method based on a virtual reality technology comprises the following steps:
reading an elevator inspection model according to the information of the student input selection equipment, so as to virtualize an inspection scene of the elevator equipment;
acquiring the movement information, hand information and visual angle information of a student in real time, and switching a virtual scene according to the acquired information;
guiding the student to carry out inspection operation through the guiding information, judging whether the inspection operation of the student is correct according to a preset inspection program, and prompting an operation error and judging that the operation is invalid when the inspection operation of the student is incorrect;
when all the inspection steps are judged to be executed, the elevator inspection is prompted to be completed.
Further, the method further comprises a step of switching the hand posture, wherein the step of switching the hand posture comprises the following steps:
after the displacement information and the hand information of the student are collected, the collected information is mapped to an elevator inspection scene, and corresponding switching trigger information is generated when the fact that the virtual hand contacts different parts is judged;
and replacing the posture of the virtual human hand and the tool instrument model according to the switching trigger information.
Further, the method also comprises a step of opening the decomposition model, and specifically comprises the following steps:
judging whether a decomposition model of the elevator is opened or not according to a preset opening program, and if so, reading and virtualizing a three-dimensional explosion map of the elevator equipment;
judging whether to close the decomposition model of the elevator according to a preset closing program, if so, closing a three-dimensional explosion diagram of the elevator equipment, and virtualizing the elevator equipment;
the three-dimensional explosion diagram contains the components of the elevator installation.
Further, a video playing key is arranged on the three-dimensional explosion map, and the method further comprises a teaching video playing step, and specifically comprises the following steps:
judging whether the virtual hand is in contact with a video playing key or not, if so, triggering to pop up a playing video frame and playing a teaching video;
judging whether the virtual human hand is in contact with the part, displaying the part in a first display format when the contact is judged, and generating corresponding video trigger information;
and playing the part teaching video according to the video trigger information, and automatically closing the video playing frame after the video is played.
Further, the method also comprises a step of acquiring the parts, and specifically comprises the following steps:
when judging that the virtual human hand contacts the part, displaying the part in a second display format, and when judging that the part is obtained according to the hand information, replacing the virtual human hand with the part;
the method comprises the steps of collecting hand information of a student in real time, and mapping the collected information to virtual parts, so that the parts can be watched comprehensively;
and when the contact between the part and the three-dimensional explosion diagram is judged, the part automatically restores to the original position and virtualizes a virtual hand.
Further, the hand information includes hand displacement information and hand motion input information.
Further, the parts comprise independent parts and integral parts, and further comprise a secondary explosion step, and the method specifically comprises the following steps:
when judging whether the virtual human hand is in contact with the whole part, displaying the part in a third display format;
and judging whether the integral part is subjected to secondary explosion or not by combining the hand information and a preset secondary explosion program, and if so, reading and virtualizing a three-dimensional explosion diagram of the integral part.
The invention has the beneficial effects that: according to the invention, through the virtual elevator-exiting device, students learn the relevant knowledge of the elevator device by checking the virtual elevator device without operating the real elevator device, so that the teaching cost is saved, the students are prevented from being injured by misoperation, and the teaching safety is improved.
Drawings
FIG. 1 is a block diagram of an elevator inspection teaching system based on virtual reality technology;
fig. 2 is a flow chart of steps of an elevator inspection teaching method based on virtual reality technology.
Detailed Description
Example one
As shown in fig. 1, an elevator inspection teaching system based on virtual reality technology comprises a handheld control device, a control host, a virtual display and a positioning device, wherein the control host comprises a database module and an operation control module, and the operation control module is respectively connected with the handheld control device, the virtual display, the positioning device and the database module;
the positioning device is used for collecting the movement information of the student and transmitting the collected movement information to the operation control module;
the handheld control device is used for collecting the displacement information and the action input information of the hands of the student and transmitting the collected information to the operation control module;
the virtual display is used for playing a virtual elevator inspection scene, simultaneously collecting the visual angle information of the student and transmitting the collected visual angle information to the operation control module;
the database module is used for storing elevator inspection models, elevator equipment decomposition models and teaching videos of different types;
the operation control module is used for virtualizing the elevator-exiting equipment, playing a teaching video according to the trigger information, judging whether the checking operation steps of the student are correct or not according to the received information, and prompting the student when the judgment is incorrect.
The working principle of the system is as follows: operation control module is through the elevator inspection model or the equipment decomposition model in reading the database module, and through the inspection scene of virtual display to student's broadcast elevator equipment, virtual display in this embodiment is the VR helmet, the student can see elevator equipment's picture through the vision, hear the virtual sound in the scene through the sense of hearing, for example the student is when dismantling equipment, can hear collision or frictional sound when corresponding dismantlement, let the student be personally on the scene, the environment of better integration teaching, also can be more the dismantlement condition of the reality of the more appropriate simulation, reinforcing student's memory. The visual angle information is information of the rotation of the head of the student, the rotation sensor is arranged on the virtual display, when the head of the student is twisted, the rotation sensor collects the rotation information of the student and sends the collected rotation information to the operation control module, and the operation control module adjusts a virtual scene according to the rotation information, so that the student feels more real. The student learns and checks the elevator equipment in the virtual environment, and the learning and checking step comprises the steps of detaching, installing, detecting and the like of the virtual elevator equipment. Wherein, the student dismantles virtual elevator equipment, dismantles simultaneously, learns elevator equipment's principle and structure to when meetting the doubt, click the broadcast video of imparting knowledge to students, thereby obtain effectual teaching, improve the effect of study. In the process of dismantling real equipment, some dangerous parts, such as springs, can cause serious injury to the student if the operation is improper, and in the virtual scene, the student carries out wrong operation, can produce the suggestion, can not cause the injury to the student, has improved the security. Because the elevator equipment of dismantlement is virtual equipment, avoided the student to go bad the problem of elevator equipment, reduced the cost of teaching, the student can play the teaching video at any time when meetting the difficulty simultaneously, obtains effectual solution and help, provides the quality of teaching.
As a preferred embodiment, the database module comprises an elevator inspection model database, an equipment decomposition model database and a teaching video database, and the operation control module is respectively connected with the elevator inspection model database, the equipment decomposition model database and the teaching video database;
the elevator inspection model database is used for storing different types of elevator inspection models;
the equipment decomposition model database is used for storing decomposition models of different types of elevator equipment;
the teaching video database is used for storing teaching videos for inspecting the elevator equipment.
Because the elevator has various models and elevator types, such as a machine room-free medium-speed sightseeing elevator, a public transportation type escalator, an indirect jacking type hydraulic elevator, a sundry elevator and the like, and each elevator has various devices, such as a tractor and a motor, different devices of the elevators with different models are stored in an elevator inspection model database, and students can simulate different elevator devices for learning by selecting the different elevator devices. The exploded view of each type of elevator equipment is stored in the equipment decomposition model database, and students can watch the exploded view of the elevator equipment to more intuitively know the structure and the principle of the elevator equipment. Corresponding teaching videos are stored in the teaching video database, a student can watch the teaching videos firstly and then learn with practical exercises, the learning mode of the student is increased, meanwhile, the student can be taught effectively, and the learning quality is improved.
In a further preferred embodiment, the decomposition model of the elevator equipment is a three-dimensional explosion map of the elevator equipment, and the three-dimensional explosion map comprises models of parts of the elevator equipment.
In this embodiment, the decomposition model of the elevator is displayed in the form of a three-dimensional explosion diagram, so that the trainee can clearly see all the parts of the elevator equipment, and the trainee can watch the composition structure of the elevator equipment through the moving position and the visual angle, carefully watch the parts in the learned elevator equipment, and can acquire the parts in the learned elevator equipment to perform detailed observation and learning. Elevator equipment more can audio-visually let the student know the equipment structure through the form demonstration with three-dimensional explosion chart, makes things convenient for the student to study, and the student can acquire spare part and carry out all-round sight and study, and more real imitates actual operation, improves student's student enthusiasm, improves the learning effect.
Further as a preferred embodiment, the database module is further configured to store a tool instrument model and a gesture action model.
When a student detaches the equipment, when a virtual hand contacts different parts of the equipment, the virtual hand can switch the gesture of the virtual hand and the detaching tool according to different triggers, for example, when the virtual hand contacts a nut, a model of a wrench is automatically switched to be tightly held by a human hand. By switching different models, the trainees can feel that the virtual scene is more real and better merge into the virtual scene, so that a better learning effect is achieved.
Example two
As shown in fig. 2, an elevator inspection teaching method based on virtual reality technology includes the following steps:
and S1, reading the elevator inspection model according to the information of the student input selection device, and virtualizing the inspection scene of the elevator device.
And S2, acquiring the movement information, the hand information and the visual angle information of the student in real time, and switching the virtual scene according to the acquired information. The hand information includes hand displacement information and hand motion input information.
Wherein, be equipped with the button in handheld controlling means, the student can pass through the button input information, for example the student can carry out the elevator equipment of selection virtual difference through the button.
And S3, switching hand postures. Wherein, S3 includes steps S31-S32:
and S31, after the displacement information and the hand information of the student are collected, mapping the collected information to an elevator inspection scene, and generating corresponding switching trigger information when the virtual human hand is judged to contact different parts.
And S32, replacing the posture of the virtual human hand and the tool instrument model according to the switching trigger information.
And S4, opening the decomposition model. Wherein S4 includes S41-S42:
and S41, judging whether to open the decomposition model of the elevator according to a preset opening program, and if so, reading and virtualizing a three-dimensional explosion diagram of the elevator equipment. And a video playing key is arranged on the three-dimensional explosion picture. The three-dimensional explosion diagram contains the components of the elevator installation. In this embodiment, the preset opening procedure is: when the system senses that the virtual human hand is in contact with the elevator equipment, and the student presses the confirmation key through the handheld control device and slides a preset distance, the three-dimensional explosion diagram can be triggered to be opened.
The S41 comprises A1-A3:
a1, judging whether the virtual hand is in contact with the video playing key, if so, triggering to pop up the playing video frame and playing the teaching video.
When a virtual hand contacts a video playing key, the system is triggered to pop up a playing video frame, corresponding data are read from a teaching video database by the operation control module, a teaching video is played, the played teaching video is a video for teaching a student how to disassemble the elevator equipment, and corresponding parts in the three-dimensional explosion diagram can be highlighted when the video speaks which part in the playing process.
A2, judging whether the virtual human hand contacts with the parts, and displaying the parts in a first display format and generating corresponding video trigger information when the contact is judged.
And A3, playing the part teaching video according to the video trigger information, and automatically closing the playing video frame after the video is played.
When the teaching video is played, when the fact that a virtual hand touches a certain part is sensed, corresponding trigger information is generated, the operation control module obtains the teaching video of the part from the teaching video database according to the corresponding information and the trigger information, and after the automatic playing is finished, the playing video frame is closed. In this embodiment, the first display format is highlight.
And S42, judging whether to close the decomposition model of the elevator according to a preset closing program, if so, closing the three-dimensional explosion diagram of the elevator equipment, and virtualizing the elevator equipment.
In this embodiment, the preset shutdown procedure is: when the system senses that the virtual human hand is in contact with the three-dimensional explosion diagram, the student presses the confirmation key through the handheld control device and slides a preset distance, and then the three-dimensional explosion diagram is triggered to be closed.
And S5, guiding the student to carry out checking operation through the guide information, judging whether the checking operation of the student is correct according to a preset checking program, and prompting operation errors and judging that the operation is invalid when the checking operation of the student is incorrect.
And S6, when judging that all the inspection steps are executed, prompting the elevator inspection to be finished.
By the method, a student learns and checks the elevator equipment in a virtual environment, and the learning and checking step comprises the steps of disassembling the elevator equipment virtually, installing the elevator equipment and the like. Wherein, the student can dismantle virtual elevator equipment, dismantles while, learns elevator equipment's structure and principle, when meetting the problem, can click the broadcast video of imparting knowledge to students to obtain effectual guidance and answer, avoid blind dismantlement and do not understand its principle, improved the effect of teaching. Because the equipment is virtual, the problem that a student breaks the elevator equipment is avoided, the teaching cost is reduced, and the harm to the student due to improper operation of the academic industry is avoided. In addition, the student learns through playing the teaching video, and does not need the teacher to answer every time, has reduced teacher's work load.
EXAMPLE III
Compared with the second embodiment, the step S4 of the elevator inspection teaching method based on the virtual reality technology in this embodiment further includes a step of acquiring parts, and the step includes the following steps B1 to B3:
b1, when judging that the virtual human hand touches the component, the component is displayed in the second display format, and when judging that the component is acquired according to the hand information, the virtual human hand is replaced with the component.
And B2, acquiring hand information of the student in real time, and mapping the acquired information onto the virtual parts, thereby realizing the omnidirectional watching of the parts.
And B3, when the contact between the part and the three-dimensional explosion diagram is judged, the part automatically restores the original position and virtualizes a virtual hand.
The student can acquire spare part to carry out 360 watching to spare part through handheld controlling means's rotation, make things convenient for the student to the more clear understanding of spare part, deepen the impression and the interest of student to study.
Example four
Compared with the second embodiment, the elevator inspection teaching method based on the virtual reality technology of the embodiment has the advantages that the parts comprise independent parts and integral parts, the step S4 further comprises a secondary explosion step, and the secondary explosion step specifically comprises the following steps C1-C2:
c1, when judging whether the virtual hand is in contact with the whole part, the part is displayed in the third display format.
And C2, judging whether the whole part is subjected to secondary explosion or not by combining the hand information and a preset secondary explosion program, and if so, reading and virtualizing a three-dimensional explosion diagram of the whole part.
Whole spare part only need in the reality inspection wholly pull down can, need not to unpack inside apart, so in the equipment explosion picture, whole spare part appears with a whole, makes the explosion picture more neat like this, makes things convenient for student's study and looks over. When some integral part trainees want to study deeply, the integral part trainees can explode for the second time, so that an explosion diagram of the integral part is obtained. In this embodiment, when it is determined that the virtual human hand touches the whole part, the whole part is highlighted, and the student can trigger the secondary explosion of the whole part by pressing the confirmation key on the handheld control device and dragging the confirmation key. Through secondary explosion, the study of the student is more facilitated.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. An elevator inspection teaching system based on a virtual reality technology is characterized by comprising a handheld control device, a control host, a virtual display and a positioning device, wherein the control host comprises a database module and an operation control module, and the operation control module is respectively connected with the handheld control device, the virtual display, the positioning device and the database module;
the positioning device is used for collecting the movement information of the student and transmitting the collected movement information to the operation control module;
the handheld control device is used for collecting the displacement information and the action input information of the hands of the student and transmitting the collected information to the operation control module;
the virtual display is used for playing a virtual elevator inspection scene, simultaneously collecting the visual angle information of the student and transmitting the collected visual angle information to the operation control module;
the database module is used for storing elevator inspection models, elevator equipment decomposition models and teaching videos of different types;
the operation control module is used for virtualizing the elevator-exiting equipment, playing a teaching video according to the trigger information, judging whether the checking operation steps of the student are correct or not according to the received information, and prompting the student when the judgment is incorrect;
the elevator inspection teaching system comprises the following steps:
reading an elevator inspection model according to the information of the student input selection equipment, so as to virtualize an inspection scene of the elevator equipment;
acquiring the movement information, hand information and visual angle information of a student in real time, and switching a virtual scene according to the acquired information;
a step of switching a hand posture, the step of switching a hand posture comprising: after the displacement information and the hand information of the student are collected, the collected information is mapped to an elevator inspection scene, and corresponding switching trigger information is generated when the fact that the virtual hand contacts different parts is judged; replacing the posture of the virtual human hand and the tool instrument model according to the switching trigger information;
the trainees are guided to carry out the checking operation through the guiding information,
opening a decomposition model, specifically comprising the following steps: judging whether a decomposition model of the elevator is opened or not according to a preset opening program, and if so, reading and virtualizing a three-dimensional explosion map of the elevator equipment; judging whether to close the decomposition model of the elevator according to a preset closing program, if so, closing a three-dimensional explosion diagram of the elevator equipment, and virtualizing the elevator equipment; the three-dimensional explosion diagram comprises all parts of the elevator equipment;
the method is characterized in that a video playing key is arranged on the three-dimensional explosion map, and the method further comprises a teaching video playing step, and specifically comprises the following steps: judging whether the virtual hand is in contact with a video playing key or not, if so, triggering to pop up a playing video frame and playing a teaching video; judging whether the virtual human hand is in contact with the part, displaying the part in a first display format when the contact is judged, and generating corresponding video trigger information; playing the part teaching video according to the video trigger information, and automatically closing a playing video frame after the video is played;
the method also comprises a step of acquiring the parts, and specifically comprises the following steps: when judging that the virtual human hand contacts the part, displaying the part in a second display format, and when judging that the part is obtained according to the hand information, replacing the virtual human hand with the part; the method comprises the steps of collecting hand information of a student in real time, and mapping the collected information to virtual parts, so that the parts can be watched comprehensively; when the contact between the part and the three-dimensional explosion diagram is judged, the part automatically restores to the original position and virtualizes a virtual hand;
the parts comprise independent parts and integral parts, and further comprise a secondary explosion step, and the method specifically comprises the following steps: when judging whether the virtual human hand is in contact with the whole part, displaying the part in a third display format; judging whether the integral part is subjected to secondary explosion or not by combining the hand information and a preset secondary explosion program, and if so, reading and virtualizing a three-dimensional explosion diagram of the integral part;
judging whether the student's inspection operation is correct according to a preset inspection program, and when the judgment is incorrect, prompting an operation error and judging that the operation is invalid;
when all the inspection steps are judged to be executed, the elevator inspection is prompted to be completed.
2. The elevator inspection teaching system based on the virtual reality technology as claimed in claim 1, wherein the database module comprises an elevator inspection model database, an equipment decomposition model database and a teaching video database, and the operation control module is respectively connected with the elevator inspection model database, the equipment decomposition model database and the teaching video database;
the elevator inspection model database is used for storing different types of elevator inspection models;
the equipment decomposition model database is used for storing decomposition models of different types of elevator equipment;
the teaching video database is used for storing teaching videos for inspecting the elevator equipment.
3. The elevator inspection teaching system based on virtual reality technology according to claim 2, wherein the decomposition model of the elevator equipment is a three-dimensional explosion map of the elevator equipment, and the three-dimensional explosion map comprises models of parts of the elevator equipment.
4. The elevator inspection teaching system based on virtual reality technology of claim 3, wherein the database module is further used for storing tool instrument models and gesture action models.
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| CN109360453A (en) * | 2018-11-26 | 2019-02-19 | 四川科特检测技术有限公司 | Special equipment detection training system and method based on VR |
| CN109615966A (en) * | 2018-12-29 | 2019-04-12 | 珠海格力电器股份有限公司 | Air conditioner installation and maintenance practical training method and system based on virtual reality technology |
| CN110096142A (en) * | 2019-04-01 | 2019-08-06 | 广东芬莱信息科技有限公司 | A kind of intelligent interactive method based on virtual reality, device and storage medium |
| CN110689788B (en) * | 2019-11-21 | 2022-02-22 | 北京智联友道科技有限公司 | Elevator control system and using method |
| 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 |
| CN113255158B (en) * | 2021-06-16 | 2024-05-03 | 广州广日电梯工业有限公司 | Elevator installation guiding method and elevator installation guiding device |
| CN113706721A (en) * | 2021-09-07 | 2021-11-26 | 中国计量大学 | Elevator inspection method and system based on augmented reality technology |
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| DE102015226580A1 (en) * | 2015-12-22 | 2017-06-22 | Audi Ag | Method for operating a virtual reality system and virtual reality system |
| CN107463245A (en) * | 2016-06-02 | 2017-12-12 | 上海矩道网络科技有限公司 | Virtual reality emulation experimental system |
| CN206179292U (en) * | 2016-08-25 | 2017-05-17 | 四川省特种设备检验研究院 | Special equipment test detection teaching system based on VR virtual reality technology |
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