DY elevator installation virtual simulation experiment platform

Release time：2024-07-06 16:00viewed：times

1. Management subsystem

The management subsystem consists of user management, major management, teacher management, class management and student management. The functions are as follows:
(1) User management: system user name, account, password and permission definition;
(2) Major management: including major name, usage status and other information;
(3) Class management: including class name, class description, major, etc.;
(4) Teacher management: m*nly including user name, name, gender, telephone number, em*l address and major, etc.;
(5) Student (candidate) management: student (candidate) name, account, password, class, etc., receiving exam or practice tasks.

2. Teaching subsystem
The teaching subsystem consists of functional modules such as teaching resource library, my courseware folder, learning task release, learning situation analysis, and student end. Its features are as follows:
(1) The management platform’s built-in 3D virtual simulation teaching resource library, which consists of 3D animation teaching resource packages and 3D virtual tr*ning resource packages for each course, is constructed according to projects, tasks, knowledge and skills points, etc. Teachers can also customize and upload other courseware resources that need to be shared, such as: electronic teaching plans, PPT, teaching videos, pictures, documents, etc.;
(2) Teachers can customize courseware folders with their own characteristics according to teaching requirements. Courseware folders can choose the 3D virtual simulation resources that come with the platform, or they can customize and upload other courseware resources, such as: PPT, videos, etc., for classroom teaching;
(3) Teachers can selectively release learning or tr*ning tasks according to the teaching progress for students to learn during or after class;
(4) The teacher end can query students’ online, login, learning time, practice scores, etc.

3. Assessment Subsystem
(1) Question Bank Management:
Question bank management m*nly includes question bank classification management and question bank content management:
Question bank classification management: supports customization. For assessment items of different majors, classification settings can be made according to question type (such as single-choice questions, multiple-choice questions, true or false questions, etc.) or question content attributes; Question
bank content management: Questions can be edited by category, including number, content, question type, category, answer and other information, and supports the import of customized and standard questions.
(2) Examination Management:
Examination management includes paper composition management and assessment management modules;
Paper composition management: includes definition functions such as examination class, invigilator, examination time, and paper composition; Paper composition rules can be customized, and both manual and automatic paper composition methods are supported;
Assessment Management: m*nly manages the assessment process and results; includes two major functions: the invigilator end and the student (candidate) end; the invigilator end can review the candidate's identity online, set and monitor the candidate's status, manage the assessment results, etc. The student (candidate) end can answer questions online after logging in.
(3) Practice management:
Students can conduct many functions online, including self-test exercises, organizing unified examinations, conducting knowledge competitions, assigning extracurricular or holiday homework, intelligent test composition, answer sheet review and grade management;
(4) Student (candidate) side:
The student (candidate) side module provides students with the ability to take mock exams, formal exams, complete homework and practice on the computer.
Virtual simulation teaching system
Mechanical tr*ning safety education virtual simulation software: This software is developed based on unity3d. The software adopts the form of three-dimensional roaming. The movement can be controlled by the keyboard and the direction of the camera can be controlled by the mouse. There are mechanical safety distance experiments, mechanical safety protection device experiments, and basic assessments of mechanical safety protection design. During the experiment, the three-dimensional roaming screen uses arrows and footprints to prompt movement to the experimental position. The circle around the mechanical object shows the working radius. The experimental process is accompanied by a dialog box reminder of the three-dimensional robot.
A. The content of the mechanical safety distance experiment includes the safety distance experiment to prevent the upper and lower limbs from touching the dangerous area (with two types of fence height and opening size). After entering, the GB23821-2009 "Safety distance to prevent the upper and lower limbs from touching the dangerous area" requirement pops up in front of the camera. Wrong demonstration: the experiment process is that after the human body enters the working radius of the mechanical object and is injured, the bloody picture and voice reminder receive mechanical injury, and return to the original position and conduct the next experiment. The last step is the correct approach.
B. The mechanical safety protection device experiment is divided into safety interlock switch, safety light curt*n, safety mat, safety laser scanner and other protection device experiments. The optional categories (safety input, safety control, safety output, other), manufacturer, product list (safety interlock switch, safety light curt*n, safety mat, safety laser scanner, safety controller, safety relay, safety fence). There is a blue flashing frame reminder at the installation location. The experimental process: select the safety fence and install it, select the safety interlock switch (or select the safety light curt*n, safety mat, safety laser scanner) and install it, select the safety controller and install it to the electrical control box, select the safety relay and install it to the electrical control box, and click the start button on the electrical control box. If entering a dangerous area, the system will sound an alarm and the mechanical object will stop working. You can stop by pressing the reset button on the electrical control box.
C. The basic assessment of mechanical safety protection design requires the installation of the mechanical safety system to be completed, and the safety guardr*l, safety interlock switch, safety light curt*n, safety mat, safety laser scanner, safety controller, safety relay, 24V power supply, signal light and emergency stop button to be correctly installed. The assessment is divided into ten assessment points. Some assessment points have three options, which students can choose freely. After the final 10 assessment points are selected, submit for confirmation, and the system will automatically derive the total score and the score of each assessment point.
D. The software must be on the same platform as a whole and must not be displayed as a separate resource.
E. At the same time, the VR installation package of this software is provided to customers to facilitate users to expand into VR experiments. VR equipment and software installation and debugging do not need to be provided.
Mechanical assembly and benchwork assembly virtual simulation software: This software is developed based on unity3d, with optional 6 levels of image quality. It has the design and virtual disassembly and assembly of reducers and shaft structures, design and simulation of common mechanical mechanisms , mechanism resource library, typical mechanical mechanisms (virtual disassembly and assembly of gasoline engines). The software is an integrated software and cannot be a separate resource.
A. Reducer design and virtual disassembly and assembly interface can choose worm gear bevel gear reducer, two-stage expanded cylindrical gear reducer, bevel cylindrical gear reducer, coaxial cylindrical gear reducer, bevel gear reducer, and one-stage cylindrical gear reducer.
Worm bevel gear reducer: After entering the software, the assembly content will be automatically played, and each step in the video will be described in text.
Secondary unfolded cylindrical gear reducer: After entering the software, the content will be played in the form of video. The video content should include: part name (scan the QR code to see the part name), disassembly demonstration (including disassembly, assembly), virtual disassembly (including the whole, low-speed shaft, medium-speed shaft, high-speed shaft, box cover, box seat)
Bevel cylindrical gear reducer, coaxial cylindrical gear reducer, bevel gear reducer, first-level cylindrical gear reducer: click to enter and automatically jump to the edrawings interface. The models are all three-dimensional models . By clicking on the parts to display the part name, you can rotate 360° in all directions, zoom in, zoom out, and translate. At the same time, you can use the move parts function to disassemble and assemble the entire reducer. At the same time, you can select the home button to return to the original state of the reducer. The bevel gear reducer and the first-level cylindrical gear reducer have added the function of inserting cross sections, and the cross sections can be freely dragged to observe the internal structure of the reducer.
B. The design of the shaft system structure and the virtual disassembly and assembly interface can select part recognition, disassembly and assembly demonstration, and actual combat operation.
1. Part recognition: The built-in 3D models and part names of helical gears, end caps without holes, couplings, coupling keys, shafts, gear keys, end caps with holes, sleeves, and deep groove ball bearings are set. Any part can be rotated 360°.
2. Disassembly and assembly demonstration: There are 2 built-in cases. When the mouse is moved to a cert*n part position (except the base and the bearing seat), the part is automatically enlarged and the part name is displayed. There are disassembly and assembly buttons. The software automatically completes the disassembly and assembly of the shaft system structure. The 3D scenes can be rotated 360°, enlarged, reduced, and translated.
3. Actual operation: The 3D parts are neatly placed on the desktop. Students manually select the corresponding parts and move them to the shaft system structure. The parts can be installed only when the placement order and position are correct. There is a restart button to facilitate students to repeat the virtual experiment. When the mouse is moved to a cert*n part position (except the base and the bearing seat), the part is automatically enlarged and the part name is displayed.
C. Common mechanical mechanism design and simulation: optional hinged four-bar mechanism design and analysis, I\II type crank rocker mechanism design and analysis, offset crank slider mechanism design and analysis, crank swing guide rod mechanism design and analysis, hinged four-bar mechanism trajectory synthesis, eccentric linear roller push rod cam , concentric linear flat push rod cam .
1. Each mechanism should be able to input corresponding parameters, and the software can automatically calculate the parameters, and can perform motion simulation and automatically draw curves.
D. The mechanism resource library can choose 11 types of planar connecting rod mechanisms, 5 types of cam mechanisms, 6 types of gear mechanisms, 8 types of transmission mechanisms, 11 types of tightening mechanisms, 6 types of gear tr*n mechanisms, and 8 types of other mechanisms (mechanical equipment simulation).
E. Virtual disassembly and assembly of gasoline engines can choose crankcase assembly and disassembly demonstration, crankcase virtual assembly, valve system assembly and disassembly demonstration, and valve system virtual assembly.
1. The crankcase assembly and disassembly demonstration and the valve system assembly and disassembly demonstration are equipped with disassembly buttons, assembly buttons, restart buttons, and decomposition observation buttons. When the mouse moves to a cert*n part position, the part is automatically enlarged and the part name is displayed. The function is automatically completed by the software to disassemble and assemble the shaft system structure. When the decomposition observation button is used, the three-dimensional model of the crankcase or valve system automatically displays an exploded view, which can be rotated 360° in all directions, enlarged, reduced, and translated.
2. The three-dimensional parts of the crankcase virtual assembly and the valve system virtual assembly are neatly placed on the desktop. Students manually select the corresponding parts and move them to the mechanism. The parts can only be installed when the placement order is correct and the position is correct. There is a restart button to facilitate students to re-conduct virtual experiments. When you move the mouse to cert*n parts, the part name will be automatically displayed.

4. Personal Learning Center
After logging in, students can receive and learn online the tasks assigned by teachers. Students can learn virtual simulation courses, interactive forums, practical tr*ning courses, assessments, rankings, etc. in the personal learning center; the

student personal learning center has modules such as learning tasks, learning status, interactive forums, test papers, homework books, and exercises.
(1) Learning tasks:
Students receive learning tasks issued by teachers and learn by selecting each task module in the learning tasks;
(2) Learning status:
You can view the content, learning time, learning duration and score det*ls of students;
(3) Interactive forum:
Let learners communicate with each other and answer questions in the simplest way;
(4) Test papers, homework books, and exercises:
Students receive tests issued by teachers or answer practice homework.

5. Cloud Platform
The cloud education platform includes modules such as experience courses, essence courses and information release. Experience courses are for visitors to watch and experience resource courses; essence courses include all 3D practical simulation questions, and users can browse and learn resources according to the divided resource permissions; the information release module releases industry trends, laws and regulations, and professional information every day.
(1) The homepage includes popular course rankings (sorted by the number of collections), course rankings (sorted by the number of views), free experience area, course essence area and information release.
(2) In the course ranking area, you can directly click on the course name to browse course resources. (3
) In the free experience area, you can directly click on the course image to enter the course viewing page.
(4) In the course essence area, after logging in, you can directly click on the course image to enter the course viewing page.
(5) The course module allows users to enter the course viewing page. During the viewing process, the system will automatically record the user's viewing time, end viewing time and duration. Users can view their browsing history in the "Playback Record" module; at the same time, users can collect courses, and then the course will appear in the "My Collection" column, and users can conveniently browse their favorite courses. In the common toolbar, click "My Site" to view the playback records and favorite courses.
(6) The information release module will play **news information in a carousel to help users view the required information more quickly.

Some resources do not have VR versions, see content Developed for student practice and simulation tr*ning content, the m*n body is in the form of exercises, with U3D programming and animation as the expression and interaction method, ensuring that students can easily and interestingly accept, understand and become familiar with the teacher's teaching content, and master the entire process of elevator installation
in a simulated environment .

Resource Category	project	Task	Content introduction (knowledge and skills points)
Animation teaching video Resources (PC version, not av*lable in VR version)	The service target is teachers, and the mn body is 3D animation, which is convenient for teachers to teach students conveniently and quickly. The steps of the exercises are the same as those of the virtual trning resources. It is an animated demonstration of the installation steps of the elevator before the exercises. On the basis of learning, the relevant installation steps are practiced. Including the following items: 1. Preparation before elevator installation; 2. Making sample frames and hanging wires; 3. Installing and calibrating guide r*ls; 4. Installing machine room components; 5. Installing floor door systems; 6. Installing counterweights; 7. Installing cars; 8. Installing traction wire ropes; 9. Installing hoistway mechanical equipment; 10. Installing electrical equipment; 11. Trial operation and finishing work; 12. Basic exercises.
	Preparations before elevator installation (PC and VR versions)	On-site inspection before installation--machine room inspection	1. Inspection items of the computer room 2. Check doors and windows, ground strength, load-bearing beam settings and hook positions 3. Check the power box (grounding protection) 4. Check the location and size of the computer room and the reserved holes on the floor
		On-site inspection before installation--well inspection	1. Well inspection items 2. Check well dimensions 3. Check the brackets 4. Check the pit
		On-site inspection before installation - floor station inspection	1. Landing station inspection items 2. Check the door openings of the landing doors 3. Check the opening dimensions of the door calls and landing station displays
		Erecting Scaffolding	1. Scaffolding materials 2. Sample frame construction (post-counterweight scaffolding construction method) 3. Requirements for scaffolding at the floor station 4. Requirements for scaffolding at the top floor 5. Laying the pedals
		Labor protection requirements for on-site construction workers	1. Requirements for installation personnel's clothing 2. Requirements for high-altitude work 3. Requirements for welding clothing 4. First *d for electric shock on site
		Tools required for installation1	Point out the common tools that need to be prepared (partial tools)
		Tools required for installation2	Point out the instruments that need to be prepared (partial instruments, measuring tools)
		Installation tool preparation	Indicate the equipment that needs to be prepared (slings, pulleys, welding machines, etc.)
		Basic procedures for elevator installation	Basic procedures for elevator installation
		Elevator equipment unpacking acceptance and data collection	1. Check the random documents of the elevator 2. Parts that need to check the copy of the type test report 3. Drawings that need to be provided 4. Unpacking and check the speed limiter
		Power supply for construction	1. Requirements for the configuration of the power supply box for construction 2. Requirements for the voltage of construction lighting 3. Requirements for lighting fixtures 4. Requirements for the lighting fixtures in the shaft
3D virtual tr*ning resources	Make sample racks and hanging wires (PC and VR versions)	Stake Line	1. Determine the size of the sample frame 2. Lay out the sample line 3. Check the size 4. Fix the sample frame and sample line
		Use angle iron to build a sample frame in the shaft	1. Determine the installation order of the sample rack 2. Cut the material according to the drawing 3. Adjust and position the door head sample 4. Adjust and fix the car guide rl sample 5. Adjust and fix the counterweight guide rl sample
		Make sample rack	1. Determine the wood specifications for making the sample frame 2. Determine the size of the sample frame 3. Cut the material 4. Position
		Build the sample frame joists	1. Install the support beams of the sample frame 2. Install the sample frame support beams 3. Check and adjust the level
	Installing and calibrating the r*ls (PC and VR versions)	Installing the first counterweight r*l	1. Select the counterweight rl 2. Install the counterweight rl base and connecting plate 3. Lift the rl into the well 4. Adjust and fix the rl
		Installing the first car guide r*l	1. Install the car guide rl base and connecting plate 2. Lift the guide rl into the hoistway 3. Adjust the guide rl position and fix the guide rl base
		Install a car guide r*l bracket	1. Put the car guide rl bracket in place 2. Install the guide rl bracket 3. Adjust the bracket
		Docking r*l	1. Connect the second rl to the installed rl 2. Fix the r*l
		Measurement and adjustment of counterweight guide gauge	1. Check the guide gauge of the counterweight 2. Correct the guide gauge
		▲ (On-site demonstration) Correction of the strghtness of heavy guide rls	1. Select the calibration tool 2. Determine the position of the pallet 3. Find the relevant parts for adjusting the strghtness of the guide rl 4. Adjust the guide r*l based on the sample line
		Determine the installation position of the guide r*l bracket	1. Determine the installation height of the first car guide rl bracket 2. Determine the installation spacing of the guide rl bracket 3. The distance requirements between the guide rl bracket and the guide rl joint 4. Determine the distance between the last guide r*l bracket and the roof surface
		Process requirements for the installation of car guide r*l brackets 1	1. Select the guide rl bracket according to the well diagram 2. Installation requirements of the first and last guide rl brackets 3. Adjustment of the guide r*l bracket
		Process requirements for car guide r*l installation process 2	1. Select the guide rl 2. The installation order of the guide rl 3. Guide rl connection 4. Requirements for the guide rl connection
		Grinding of Newly Installed Guide R*ls	1. Check the rl joints 2. Measure the grinding area 3. Grind the rl joints 4. Judge the r*l joints after polishing
		Adjust the parallelism of the car guide r*ls	1. Select the measuring tool 2. Check the parallelism of the guide rl 3. Adjust the parallelism of the guide rl
		Check the relevant dimensions of the shaft	1. Point out the key shaft dimensions that need to be surveyed before installation 2. Check the location of the floor door 3. Check the bracket
		Determine the towing point	Step 1. Point out the reference object for positioning the center point of the machine room 2. Position 3. Determine the traction point of the machine room
		Install the traction machine load-bearing beam	1. Select tools to locate and install the load-bearing beam 2. Lift the load-bearing beam 3. Determine the depth of the load-bearing beam into the wall 4. Adjust the horizontality of the load-bearing beam 5. Fix the load-bearing beam
	Installing computer room components (PC and VR versions)	Installing the guide wheels	1. Install the guide wheel 2. Check and adjust the verticality of the guide wheel 3. Check and adjust the coplanarity of the guide wheel and the traction wheel 4. Adjust the center position of the guide wheel
		Install a speed limiter	1. Determine the installation location of the speed limiter 2. Determine the components or devices associated with the speed limiter 3. Adjust the speed limiter
		Install the traction machine	1. Determine the installation steps of the traction machine 2. Install the shock-absorbing pad 3. Hoist the traction machine 4. Pre-tighten the traction machine
		Positioning traction sheave	1. Check and adjust the verticality of the traction wheel 2. Adjust the coplanarity of the traction wheel and the guide wheel 3. Adjust the traction center point of the traction wheel
		Installation of rope clamp	1. Select the rope clamp installed in the machine room 2. Determine the function of the rope clamp 3. Install the rope clamp 4. Rope clamp safety switch
		Adjusting the brake torque	1. Determine the brake type 2. If the elevator slips, check and adjust the brake
	Installing the door system (PC and VR versions)	Assemble the door sill	1. Determine the center of the sill groove 2. Take out the rem*ning sill assembly parts and assemble and tighten them
		Installing landing door sill	1. Safety measures before construction 2. Correct operation sequence for installing floor door sill 3. Put the sill in place 4. Check the level of the sill 5. Adjust the sill
		Install door frame	1. Assemble the door frame 2. Put the door frame in place 3. Install the door frame
		Check the door frame installation position	1. Check the verticality of the door frame 2. Check the horizontality of the door frame 3. Tighten the door frame
		Install the door sill	1. The correct operation sequence for installing the upper sill of the landing door 2. Adjust the center position to align with the center of the sill 3. Determine the installation height of the upper sill 4. Put the upper sill in place
		Installing the landing door leaf	1. Install the door slider 2. Install the door leaf 3. After the door is installed and the gasket is removed, check the verticality of the door leaf 4. Check the gap between the lower end of the door leaf and the sill 5. Point out the position of the door hanging plate stop wheel (the visible part of the scene)
		Install door toe guard	1. Determine the installation position of the toeboard 2. Install the door toeboard
		Installing landing door locks	1. Install the floor door lock 2. Install the floor door secondary lock contact switch 3. Adjust the floor door lock contact switch and connect the wires
		Install and verify landing door self-closing devices	1. Install the weight 2. Check the flexibility of the weight after installation 3. Check the reliability of the self-closing device
		Inspection after installation of landing door lock	1. Check the engagement depth of the door lock hook of the landing door 2. Walk slowly and check the reliability of the door lock contact
		Checking Passenger Elevator Door Clearance	1. Check the door sill distance 2. Check the door gap
	Installing Counterweight (PC and VR)	Installing the counterweight	1. Preparation before hoisting 2. Hoisting counterweight frame 3. Installing counterweight block 4. Counterweight safety protection
	Installing Counterweight (PC and VR)	Adjustment of the counterweight frame after installation	1. Determine the measurement position 2. Measure the gap between the guide shoe and the guide r*l 3. Adjust the gap
	Installing the car (PC and VR versions)	Installing car joists	1. Determine the installation floor of the joist 2. Determine the placement direction of the car joist 3. Adjust the joist level 4. Prepare the lifting tools
		Install the car frame	1. Put the car chassis bracket in place 2. Install the columns 3. Install the upper beam 4. Check the verticality of the columns 5. Check the horizontality of the upper beam
		Install the car chassis	1. Before installing the chassis, install the anti-vibration pads first. 2. Hoist the car chassis. 3. Adjust the level of the car chassis.
		Installing safety gear	1. Select the safety clamp 2. Install the safety clamp 3. Adjust the safety clamp gap 4. Preparation before installing the safety clamp pull rod
		Install the safety clamp mechanism	1. Install the safety clamp lifting mechanism 2. Install the safety clamp pull rod 3. Adjust the safety clamp pull rod
		Installing the spring-loaded sliding guide shoe	1. Select components and determine installation position 2. After installing the guide shoe, check the gap between the guide shoe and the working surface of the guide r*l 3. Determine the adjustment position
		Install the oil cup	1. Select the correct component 2. Determine the installation location 3. Tighten the oil cup
		Install car roof and car wall	1. Install the car roof 2. Install the car wall 3. Fix the car roof 4. After installation, check the verticality of the car wall
		Install the car sill	1. Assemble the sill components 2. Install the car sill 3. Check the levelness of the car sill
		Install and adjust the door machine	1. Select the installation order 2. Adjustment of the door operator after installation
		Installing car door	1. Install the slider on the car door leaf 2. Install the car door leaf 3. Check the verticality of the door leaf
		Install safety guardr*l	1. Determine the color of the safety guardrl 2. The composition of the safety guardrl 3. Check the guardr*l
		Inspection and adjustment of car after installation	1. Check and adjust the gap between the door knife and the floor door sill. 2. Check and adjust the gap between the floor door lock roller and the car sill. 3. Check the manual unlocking device of the floor door.
	Installing the traction wire rope (PC version and VR version)	Determine the length of the traction wire rope	1. Use the sample line to determine the length of the wire rope 2. Cut the wire rope
		Making the Rope End Connection	1. Thread the wire rope 2. Install the wedge 3. Fix the wire rope 4. Protect the wire rope end
		Conical sleeve rope head bus alloy casting	1. Rope cutting process requirements 2. Wire rope bending 3. Pouring Babbitt alloy 4. Inspection after pouring
		Rope laying process of traction wire rope 1	1. Indicate the rope hole on the car side of the wire rope in the figure 2. Hang and install the wire rope 3. Cut the rope
		Rope laying process of traction wire rope 2	1. Transport and loading wire rope 2. Car side rope 3. Car side rod connection 4. Rope cutting
		Suspension traction wire rope	1. Suspension wire rope 2. Rope end connected to car 3. Secondary protection of rope end combination (anti-rotation)
		Check the wire rope tension	1. Determine the position of the car during inspection 2. Measure the wire rope tension 3. Adjust the wire rope tension
	Installation of shaft machinery and equipment (PC and VR versions)	Installing car buffers	1. Position the buffer before installation 2. Install the buffer base 3. Install the buffer 4. Adjust the verticality
		Installation of hydraulic buffer in car	1. Select the buffer according to the hoistway plan 2. Position the buffer 3. Determine the height of the buffer base 4. Check the buffer after installation
		Install the speed limiter wire rope	1. Preparation 2. Install the speed limiter wire rope 3. Adjust and fix
		Installing the compensation ch*n	1. Select the compensation chn in the parts library 2. Install the compensation chn 3. Install the compensation chn anti-drop device 4. Check the distance between the compensation chn and the pit
		Install the tensioner	1. Safety protection measures before construction operation 2. Determine the installation position of the tensioning device 3. Adjust and tighten the tensioning device 4. Safety switch of the tensioning device
	Installing Elevator Electrical Devices (PC and VR Versions)	Laying wire	1. Cabling in the machine room 2. Cabling in the shaft 3. Spare wire margin 4. Total cross-sectional area requirements for wires l*d in the cable duct
		Install the cable duct	1. Installation location of the cable duct in the shaft 2. Install a section of cable duct 3. Ensure the electrical continuity of the metal cable duct 4. To prevent the metal cable duct from cutting the wires, the corners of the cable duct need to be treated in a cert*n way
Install the conduit		1. Installation of hoistway lighting conduit 2. Connection between conduit and conduit 3. Requirements for the total cross-sectional area of wires l*d in conduits
Installation of accompanying cables		Step 1. Determine the wiring position of the accompanying cable 2. Fix the accompanying cable 3. Wiring the accompanying cable
wiring		1. Select the power cord according to the drawing and place it in the wire trough 2. Determine the wiring position 3. Wiring
Confirm the installation location of the elevator electrical device (switch)		1. Indicate the installation space of the following electrical devices (switches) 2. The specific installation location of the electrical devices (switches)
Determine the installation location of the elevator electrical device (switch)-1		1. Indicate the installation space of the following electrical devices (switches) 2. The specific installation location of the electrical devices (switches)
Install the control cabinet		1. Determine the installation location of the control cabinet according to the machine room layout 2. Install the control cabinet
Determine the installation location of the elevator electrical device (switch)-2		1. Indicate the installation space of the following electrical devices (switches) 2. The specific installation location of the electrical devices (switches)
Determine the installation location of the elevator electrical device (switch)-3		1. Indicate the installation space of the following electrical devices (switches) 2. The specific installation location of the electrical devices (switches)
M*ntenance and operation control device		1. Location where the mntenance operation device must be installed 2. Operation priority sequence of the mntenance operation control device 3. Operation of the m*ntenance operation device on the car top
Adjust door speed		1. Determine the door speed and noise 2. Install the door speed control device 3. Adjust the door speed
Overload protection		1. Run the car to the test floor 2. Installation location of the elevator weighing device 3. Requirements for overload protection settings 4. Judgment of the weighing device status signal
Install the limit switch		1. Determine the installation position of the upper limit switch 2. Upper limit switch installation requirements 3. The upper limit switch needs to be short-circuited before the upper limit switch test during the debugging phase 4. Select the scenario that meets the installation requirements after the upper limit switch action
Install the lower limit switch		1. Determine the installation position of the lower limit switch 2. Before testing the lower limit switch during the debugging phase, short-circuit the lower limit switch 3. During the debugging phase, the elevator moves down slowly to check whether the installation of the lower limit switch meets the requirements
Installing the limit switch		1. Determine the installation position of the limit switch 2. Requirements for the installation position of the limit switch 3. Check the speed downward to verify whether the installation and wiring of the lower limit switch are correct
Installing the leveling sensor		1. Install the leveling sensor 2. Each stop must be installed with a magnetic isolation plate. Before installing the magnetic isolation plate on the third floor, you need to determine the relative position with the installed leveling sensor. Please press the operation button to make the car stop at the appropriate position. 3. Adjustment after installation
Stop device (emergency stop button)		1. Locations where the stop device (emergency stop button) must be installed 2. Other installation locations for the stop device (emergency stop button) 3. Requirements for installing the stop device (emergency stop button)
Install the distribution box		1. Determine the installation location of the power box 2. Determine the installation height of the distribution box 3. Install the power box 4. Connect the wires
Install the pit emergency stop device		1. Understanding the pit emergency stop device 2. Installing the pit emergency stop device 3. Wiring 4. Inspection
Installation of electrical equipment at landing stations		1. Install the floor call box 2. Install the floor display 3. Install the fire switch
Install the car control box		1. Understand the car control box 2. Determine the installation location of the car control box 3. Install the car control box
Grounding protection of electrical equipment		1. Select the ground wire material 2. Wire diameter requirements for the machine room ground lead wire 3. Machine room grounding 4. Speed limiter ground wire connection
Safety protection device		1. Safety switch in the shaft 2. Safety switch in the machine room 3. Safety switch in the car
▲ (On-site demonstration) Door interlock circuit		1. Determine the door interlock circuit diagram 2. Identify the door interlock relay 3. Determine the contact status in the door interlock circuit diagram 4. Safety verification of the door interlock circuit - Elevator m*ntenance up, check the wiring by toggling the lock arm
Protection of electric drive systems		1. Overload protection of AC two-speed elevator traction motor 2. Setting of thermal relay 3. Power supply phase sequence protection 4. Identify and adjust phase sequence
Speed limiter-safety gear linkage protection		1. Point out the connecting parts between the speed limiter and the safety clamp 2. Point out the electrical switch in the speed limiter-safety clamp that plays the role of overspeed protection 3. Determine the linkage sequence of the speed limiter-safety clamp when the car is overspeeding and descending 4. Action test of the speed limiter rope break protection switch
		Check voltage	1. Check the power supply voltage 2. Check the lighting voltage 3. Check the DC control voltage
		Inspection before debugging - machine room inspection	1. Inspection items of the computer room 2. Grounding inspection of the computer room 3. Inspection of strong and weak current wiring
		Inspection before commissioning - Speed limiter tensioning device	1. Point out the location of the installed speed limiter tensioner 2. Verify the broken rope protection switch of the speed limiter tensioner
	Trial run and final work (PC and VR versions)	Slow car debugging	1. Machine room mntenance 2. Car top mntenance
		Express debugging	1. First, perform the up and down express operation. 2. Enter the car and continue debugging. 3. Debug the limit switch. 4. Debug the safety switch.
		Overload test	1. Overload test conditions 2. Place weights 3. Test load requirements 4. Test times requirements 5. Process inspection contents 6. Overload alarm verification
		Check the clearance between the door lock wheel and the car sill	1. Run the car to the inspection position 2. Open the car door 3. Measure the gap
		Check the clearance between the door opener and the door sills on each floor	1. Run the car to the inspection position 2. Open the landing door 3. Measure the gap
		Leveling accuracy check and adjustment	1. Leveling accuracy inspection method 2. Measurement method and judgment 3. Rated load static inspection 4. Leveling device adjustment
		Run the experiment	1. Load requirements for running test 2. Running time requirements 3. Inspection contents during running test 4. Temperature rise requirements of traction machine during test
		Inspection and adjustment of automatic doors	1. Inspection sequence of floor door and car door 2. Inspection items of car door 3. Inspection items of floor door lock
	Basic exercises (expand knowledge, support PC version, no VR version)	Measuring the total power supply voltage of the elevator with a pointer multimeter	1. Select the instrument 2. Prepare 3. Measure the total power supply voltage of the elevator
		Use a pointer multimeter to measure resistance (measure resistance with a nominal resistance of 5.1K±5%)	1. Select the instrument 2. Prepare 3. Measure resistance
		Using digital universal transformer to measure the DC 24V voltage of microcomputer in control cabinet	1. Select the instrument 2. Prepare 3. Measure the output DC voltage of the switching power supply in the control cabinet
		Using a pointer multimeter to determine the polarity of a diode	1. Select the instrument 2. Prepare 3. Determine the polarity of the diode by measuring the forward and reverse resistance of the diode
		Measuring the running current of the traction motor	1. Select the instrument 2. Prepare 3. Measure the current
		Insulation inspection of control cabinet power cord	Step 1: Select the instrument 2: Prepare 3: Insulation inspection and judgment
		Elevator control circuit (<50V) insulation inspection	1. Select the instrument 2. Prepare 3. Insulation inspection and judgment
		Reading of elevator installation drawings	1. Please indicate the size of the load-bearing beam from the traction center in the drawing. 2. Indicate the distance from the guide r*l surface of the car. 3. Indicate the shape, size and position of the reserved hole in the drawing. 4. Indicate the size in the drawing.
		Reading of Elevator Circuit Diagram	1. Braking circuit 2. Door interlock circuit 3. Safety circuit 4. Signal circuit
		Reading of simple circuit diagrams	1. Rectification circuit 2. Voltage conversion circuit 3. Voltage stabilization circuit
		Reading of elevator installation drawings-1	1. Understand the drawings 2. Fill in the blanks according to the drawings 3. Determine the traction ratio
		Elevator drive system	1. Determine the drive mode 2. Determine the electrical control mode of the elevator from the control cabinet configuration 3. Point out the frequency-changing components in the VVVF control cabinet 4. Find the device that sends the car position signal to the inverter
		Reading of elevator signal display circuit	1. Identification of signal display circuit 2. Installation location of signal display lamp 3. Identification of working status of signal display circuit
		Installation location of elevator components-1	1. Safety clamp 2. Speed limiter 3. Landing door lock contact 4. Brake
		Installation location of elevator components-2	1. Traction wire rope head assembly 2. Floor call box 3. Car guide shoe 4. Traveling cable
		Installation location of elevator components-3	1. Buffer 2. Traction machine 3. Door opening and closing mechanism 4. Control box
		Use of connecting tubes	1. Find a device that can be used as a connecting tube 2. Use the connecting tube to find the level
		Use of a level	1. Select the level ruler in the tool library 2. Level ruler accuracy 3. Level ruler calibration 4. Measurement method and judgment
		Use of Vernier Caliper	1. Select measuring instruments from the tool library 2. Learn about vernier calipers 3. Perform measurement operations and fill in the measurement results
		In the given drawing, determine the corresponding items of the following	1. According to the drawings, indicate the elevator lifting height and pit depth. 2. According to the drawings, determine the elevator traction ratio and traction center distance. 3. According to the hoistway plan, indicate the corresponding markings. 4. Determine the number of buffers according to the drawings.
		Indicate the location of the following components in the entire ladder model	1. Traction machine and brake 2. Overspeed protection device 3. Guide shoe, oil box 4. Counterweight
		Identification of voltage stabilization circuit	1. Recognize the voltage stabilizing components in the circuit diagram 2. Point out the voltage stabilizing components on the circuit board 3. Identify the pins and parameters of the voltage stabilizing components 4. Measure the stabilizing voltage
		Understanding of traction motor	1. Understand the permanent magnet synchronous traction machine 2. Point out the operating position of the brake electromagnet and the release brake 3. Point out the cranking position of the permanent magnet synchronous traction machine 4. Point out the switch contacts of the cranking handwheel in the safety circuit
		Understanding inverter	1. Identify the control cabinet 2. Inverter wiring terminals 3. Indicate the components that can provide feedback on the elevator speed in the drawing 4. Indicate the installation location of the rotary encoder
		Safety protection circuit	1. Indicate the safety protection circuit in the four drawings 2. Indicate the installation position of the voltage relay 3. Indicate the relevant safety switch 4. Reset of the safety switch
		Understanding the related devices of elevator speed regulation	1. Identification of the electric control cabinet 2. Recognition of the inverter wiring terminals 3. Recognition of the speed feedback device 4. Installation position of the encoder
		Understanding the switch gate circuit of AC two-speed elevator electrical control	1. Indicate the door opening and closing drag circuit in the four figures 2. Please indicate the installation position of the door opening and closing relay 3. Analysis of the change of door opening and closing speed 4. Adjust the door opening and closing speed
		Measuring resistance with a digital multimeter	1. Select the measuring instrument in the tool library 2. Preparation before measurement 3. Measure the resistance value
		Braking device (permanent magnet synchronous traction machine)	1. Indicate the brake circuit in the four drawings 2. Indicate the brake device components 3. Indicate the brake detection switch 4. Determine the release direction of the brake when the car is manually turned
		Motor commutation	1. After the motor is wired, check whether the direction of rotation meets the requirements . 2. The motor rotation direction is wrong and needs to be corrected. 3. Change the direction of rotation of the motor.

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