DYJSJ-1 computer assembly and maintenance experiment platform

1. Practical tr*ning workbench

The workbench is required to adopt a dual-station structure design, using an industrial aluminum alloy profile frame, with a total of two floors. The first floor can be used to place m*ntenance tools, kits, and instruments; the second floor can be used to place monitors, and there is a 30W fluorescent lamp on the top. One fan. The tr*ning bench is equipped with a drawer, two keyboard trays, two m*n cabinets, and four braked universal wheels below.

The power control panel is made of iron with a double-layer matt dense pattern spray-p*nted structure and an aluminum panel. It m*nly provides 16-channel AC power socket interface, leakage protector, and power supply indication, which can provide working power for various instruments and equipment.

2. Input power supply: single-phase three-wire ~ 220V±10% 50Hz; overall machine capacity: <800VA; overall size: 1600mm×800mm×2000mm; safety protection: action current ≤30mA, action time ≤0.1s

Virtual multimeter parameters:

AC voltage ranges: 10, 50, 250, 1000

DC voltage range points: 0.25, 1, 2.5, 10, 50, 250, 1000

Ohm scale: x1, x10, 100, 1000, 1K, x10K, x100K

Ammeter gears: 50μa, 0.5, 5, 50, 500

BATT: 1.2-3.6V, RL=12Ω

BUZZ：R×3

Infrared emission detection function: vertical angle ±15°, distance 1-30cm

Transistor measuring hole

3. Tool Kit

Provides digital multimeter, needle nose pliers, diagonal pliers, small Phillips screwdriver, large Phillips screwdriver, small slotted screwdriver, small tweezers, brush, desoldering network cable, multifunctional pliers, tool kit, constant temperature soldering iron, hot *r table, etc. Common tool.

4. Computer fault diagnosis device: It has the functions of host fault diagnosis (PCI interface), VGA signal generation, keyboard detection, audio signal generation, computer network cable interface detection, DC power adapter detection, computer host leakage point detection, etc.

5. PCI-E motherboard detection card: automatically identifies the interface type. Supports multiple buses: PCI, PCI_E, miniPCI_E, LPC.

★6. Virtual spectrum analyzer, logic analyzer, oscilloscope, and three-meter simulation software (copyright certificate and demonstration provided):

This software is in apk format and can be used on PC or mobile terminals. The functions of this software are: resistance measurement, AC voltage measurement (measuring transformer, if the multimeter burns out when measuring the transformer, black smoke will emit prompts and can reset the multimeter), determine the polarity of the transistor, measure the DC voltage (the light turns on when the ammeter is turned on), measure the DC current, and determine the quality of the capacitor. This software can drag the red and black pen tips at will. When the two pen tips are dragged and positioned on the object to be measured, a red circle will be displayed. If the positioning is not accurate, no red circle will be displayed, and when incorrect operations are performed (such as the wrong range selected, If the measured data is wrong, etc.), the meter pointer will not respond, prompting errors and re-measurement, etc. This multimeter can select AC voltage gear, DC voltage gear, resistance gear, current gear, resistance adjustment to 0, and can enlarge the display data. Clearly view the measured data size. Students can learn the correct use of multimeters through this software. Based on the unity3d design, users can choose different interactive interface sizes according to computer configuration, and six levels of image quality are av*lable. 4 types of cylindrical gear shafting components, 4 types of bevel gear shafting components, and 6 types of worm shafting components are av*lable for installation, disassembly, assembly, parts measurement (divided into shaft measurement and base measurement), assessment, etc. There are intelligent reminders during the steps of disassembly and assembly of parts. Students manually select the corresponding parts and move them to the shaft structure. Only by selecting the parts in the correct order can they be installed. The models in the software are all 3D models, produced by 3Dmax, and After rendering and polishing, the model looks the same as the real part. It has a non-standard parts library (8 types of parts), a standard parts library (12 types of parts), and a measurement tool library (steel ruler, vernier caliper) for disassembly and assembly. choose. The software is equipped with integrated electronic experiment assessment questions and instructions for the purpose, steps, and requirements of the experiment. When using the assessment function, questions are given for students to answer. When students finish answering the questions, assessment scores are given. There are 12 questions in total. Each question is set to 8 points (one of the questions is a multiple-choice question, accounting for 12 points). Only the selected The answer leads to the next question. The software needs to be able to rotate, zoom in, and zoom out in all directions to view its det*ls. The software must be on the same platform as a whole and must not be displayed as separate resources.

2. Equipment configuration requirements

*The computer motherboard is provided by the school itself