Electronic circuit fault diagnosis practical training examination device
By introducing a wireless communication module into the electronic circuit fault diagnosis training and assessment device, communication between the teacher and student ends is achieved, enabling flexible setting of fault points and convenient management of results. This solves the problem that existing devices cannot set faults, and improves the effectiveness of training and the confidentiality of assessment.
Patent Information
- Application Number
- CN202423257940.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing electronic circuit fault diagnosis training and assessment device cannot set faults, resulting in poor training effect, and the assessment process lacks confidentiality and management convenience.
An electronic circuit fault diagnosis training and assessment device was designed, which includes a teacher end and a student end. The communication between the teacher end and the student end is realized by a wireless communication module. The teacher end can send instructions to set fault points, and the student end can perform diagnosis and feedback results through the electronic circuit fault board, and make fault judgment in combination with the instrument module.
It enables flexible setting of electronic circuit faults, ensures strong confidentiality in the assessment process, facilitates independent practice for students, and makes assessment results easy to manage and monitor, thereby improving the effectiveness of practical training and the management efficiency of teachers.
Smart Images
Figure CN223871124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic technology, specifically to an electronic circuit fault diagnosis training and assessment device. Background Technology
[0002] "Electronic Circuit Fault Diagnosis and Repair" is a core course for the Electronic Information Engineering Technology major. It includes electronic component identification and testing, analog and digital circuit analysis, complete circuit analysis, signal analysis and testing, fault diagnosis and troubleshooting, etc. It is a comprehensive and highly practical course that equips students with basic skills in electronic product fault detection and repair, laying a solid foundation for future employment. After theoretical learning, relevant practical training is required to allow students to apply their knowledge. Existing electronic circuit fault diagnosis training and assessment devices require teachers to set questions, students to operate independently, and teachers to review the results. Furthermore, the existing equipment only allows for repetitive practice and cannot set faults, thus failing to achieve the desired training effect. Summary of the Invention
[0003] To address the inconvenience of using existing electronic training equipment, this invention proposes an electronic circuit fault diagnosis training and assessment device, comprising a teacher's end and multiple student ends. The teacher's end and student ends communicate via a wireless communication module, allowing the teacher's end to issue commands to the student ends for easy assessment. In addition, students can use the electronic circuit fault board for various assessment exercises.
[0004] To achieve the above objectives, this utility model proposes an electronic circuit fault diagnosis training and assessment device, including an instrument module, multiple student terminals and a teacher terminal. The teacher terminal includes a first controller, and the student terminal includes a second controller. Both the first controller and the second controller are equipped with a wireless communication module. The first controller and the multiple second controllers communicate with each other through the wireless communication module. Both the first controller and the second controller are also equipped with a display screen, and the first controller and the second controller are communicatively connected to the display screen.
[0005] The student terminals also include electronic circuit fault boards, which include, but are not limited to, one or more combinations of electronic doorbell circuits, DC regulated power supply circuits, sound-controlled LED melody light circuits, light-controlled switch circuits based on phototransistors and LM358, common-emitter amplifier circuits, flowing water light circuits, sound and light control light circuits, and microcontroller application circuits.
[0006] The faulty electronic circuit board is connected to the power supply to form a loop.
[0007] Furthermore, the student terminal also includes an electronic circuit fault diagnosis motherboard. The input terminal of the electronic circuit fault diagnosis motherboard is connected to the IO port of the second controller. The electronic circuit fault diagnosis motherboard is used to set fault points, and the output terminal of the electronic circuit fault diagnosis motherboard is electrically connected to the electronic circuit fault board.
[0008] The electronic circuit fault board connects to the power supply to form a circuit through the electronic circuit fault diagnosis motherboard.
[0009] During the assessment, the teacher can send instructions to at least one student via the wireless communication module. The second controller executes the instructions of the first controller and sets the fault point through the sub-circuit fault diagnosis motherboard. The student judges and handles the fault point through the student terminal and feeds back to the teacher through the wireless communication module to complete the practical training assessment.
[0010] During practice, communication between the student and teacher ends is disconnected. The student uses the circuit fault diagnosis motherboard through the second controller to set fault points and completes the exercise in conjunction with the electronic circuit fault board.
[0011] Furthermore, the second controller includes an MCU chip, which communicates with the display screen via a UART serial port and with the wireless communication module via a UART serial port.
[0012] Wireless communication modules include, but are not limited to, one or more combinations of Zigbee modules, WiFi modules, and Bluetooth modules.
[0013] Furthermore, the first controller includes an MCU chip, which communicates with the display screen via a UART serial port;
[0014] The MCU chip communicates with the wireless communication module via a UART serial port.
[0015] It adopts an embedded structure, which facilitates wiring.
[0016] Furthermore, the instrument module includes an oscilloscope, a multimeter, and a function signal generator.
[0017] Furthermore, the first controller is connected to the server via the wireless communication module.
[0018] The beneficial effects of this utility model through the above technical solution are as follows:
[0019] This invention enables the setting of electronic circuit faults, facilitating teacher assessment with good confidentiality and allowing students to practice independently. During assessment, the teacher's end and multiple student ends communicate via a wireless communication module. The teacher's end can send control commands to multiple or a single student end. The student end receives the control commands and sets fault points according to the controller instructions and the electronic circuit fault diagnosis motherboard based on the electronic circuit fault board. The assessments of multiple student ends are inconsistent, ensuring strong confidentiality and facilitating teacher management and assessment.
[0020] The assessment results are uploaded to the teacher's end via a wireless communication module, and then uploaded to the server via the same module. This allows teachers to view the assessment results from multiple locations and easily understand the learning progress of each student.
[0021] During practice, communication between multiple student terminals and the teacher terminal is disconnected. Students can use the second controller to control the electronic circuit fault diagnosis motherboard and set fault points. Students use the instrument module to diagnose the fault based on the fault symptoms and submit the diagnostic results on the display screen. When the diagnostic result is correct, the second controller controls the electronic circuit fault diagnosis motherboard to clear the fault. This facilitates student practice. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of an electronic circuit fault diagnosis training and assessment device according to the present invention.
[0023] Figure 2 This is one of the circuit schematic diagrams of an electronic circuit fault diagnosis training and assessment device according to this utility model;
[0024] Figure 3 This is the second circuit schematic diagram of an electronic circuit fault diagnosis training and assessment device according to the present invention;
[0025] Figure 4 This is the third circuit diagram of an electronic circuit fault diagnosis training and assessment device according to this utility model;
[0026] Figure 5 This is the fourth circuit diagram of an electronic circuit fault diagnosis training and assessment device according to this utility model.
[0027] The reference numerals are as follows: 1 is the instrument module, 2 is the first controller, 3 is the second controller, 4 is the Zigbee module, 5 is the display screen, 6 is the WiFi module, 7 is the electronic circuit fault diagnosis motherboard, 8 is the electronic circuit fault board, 9 is the light-emitting diode, 10 is the server, 701 is the relay, and 702 is the transistor. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0029] Example 1
[0030] like Figures 1-5 As shown, an electronic circuit fault diagnosis training and assessment device includes an instrument module 1, multiple student terminals and a teacher terminal. The teacher terminal includes a first controller 2, and the student terminal includes a second controller 3. Both the first controller 2 and the second controller 3 are equipped with wireless communication modules. The wireless communication modules include, but are not limited to, one or more combinations of Zigbee modules, WiFi modules and Bluetooth modules.
[0031] In this embodiment, the first controller 2 and multiple second controllers 3 communicate wirelessly via a Zigbee module 4. Both the first controller 2 and the second controller 3 are also equipped with a display screen 5. The first controller 2 and the second controller 3 are communicatively connected to the display screen 5. The first controller 2 is electrically connected to a WiFi module 6.
[0032] The multiple student terminals also include an electronic circuit fault diagnosis motherboard 7 and an electronic circuit fault board 8. The input terminal of the electronic circuit fault diagnosis motherboard 7 is connected to the IO port of the second controller 3. The electronic circuit fault diagnosis motherboard 7 is used to set fault points. The output terminal of the electronic circuit fault diagnosis motherboard 7 is electrically connected to the electronic circuit fault board 8.
[0033] The electronic circuit fault board 8 connects to the power supply to form a circuit through the electronic circuit fault diagnosis motherboard 7.
[0034] Preferably, the electronic circuit fault diagnosis motherboard 7 includes multiple relays 701 and multiple transistor drive circuits 702. The transistor drive circuit 702 includes a transistor, the base of which is connected to the output terminal of the second controller 3, the emitter of which is grounded, and the collector of which is connected to the coil of the relay 701. The other end of the coil of the relay 701 is connected to a power supply.
[0035] The normally open contact of relay 701 is connected to the electronic circuit fault board 8.
[0036] Preferably, a light-emitting diode 9 is connected in parallel between the collector of the transistor and the coil of the relay 701.
[0037] Preferably, the electronic circuit fault board 8 includes one or more combinations of an electronic doorbell circuit, a DC regulated power supply circuit, a sound-controlled LED melody light circuit, a light-controlled switch circuit based on a phototransistor and LM358, a common-emitter amplifier circuit, a flowing water light circuit, a sound and light control light circuit, and a microcontroller application circuit.
[0038] Preferably, the second controller 3 includes an MCU chip, which communicates with the display screen 5 via a UART serial port, and with the Zigbee module 4 via a UART serial port.
[0039] Preferably, the first controller 2 includes an MCU chip, which communicates with the display screen 5 via a UART serial port, the MCU chip communicates with the Zigbee module 4 via a UART serial port, and the MCU chip communicates with the WiFi module 6 via a UART serial port.
[0040] Preferably, the instrument module 1 includes an oscilloscope, a multimeter, and a function signal generator.
[0041] Preferably, the first controller 2 is wirelessly connected to the server 10 via the WiFi module 6.
[0042] In this embodiment, the MCU chips of the first controller 2 and the second controller 3 are STM32F103VCT6 chips. There are 8 relays 701 and transistor drive circuits 702. The display screen 5 is a touch screen. The display screen 5 is connected to the first controller 2 and the second controller 3 through an RS232 serial port unit for communication.
[0043] To facilitate understanding, the electronic circuit fault board 8 uses an electronic doorbell circuit, which includes a doorbell, buttons, and a 555 timer. The circuit has the following faults: main power supply has an open circuit fault; resistor R1 and ground have an open circuit fault; capacitor C1 has an open circuit fault; the 555 timer power supply terminal has an open circuit fault; resistor R3 has a short circuit fault; resistor R1 and diode D1 have an open circuit fault; the 555 timer output terminal has an open circuit fault; and the 555 timer input terminal has an open circuit fault.
[0044] The corresponding main power supply is connected to the normally open contact of relay (KA1) 701, capacitor C1 is connected to the normally open contact of relay (KA2) 701, the power supply terminal of 555 timer is connected to the normally open contact of relay (KA3) 701, the resistor R1 is connected to the normally open contact of relay (KA4) 701 between ground, the resistor R3 is connected to the normally closed contact of relay (KA5) 701, the resistor R1 is connected to the normally open contact of relay (KA6) 701 between diode D1, the output terminal of 555 timer is connected to the normally open contact of relay (KA7) 701, and the input terminal of 555 timer is connected to the normally open contact of relay (KA8) 701.
[0045] Taking the above configuration as an example, during the assessment, the teacher selects the fault point through the display screen 5. In this embodiment, the main power supply open circuit fault, resistor R3 short circuit fault, and 555 timer output open circuit fault are selected. The first controller 2 transmits the fault command through the Zigbee module 4, and then the second controller 3 receives the fault command through the Zigbee module 4. The second controller 3 controls the coils of KA2, KA3, KA4, KA6, and KA8 to be energized. At this time, the power supply open circuit fault, resistor R3 short circuit fault, and 555 timer output open circuit fault are detected.
[0046] Students used an oscilloscope, multimeter, and function generator to test the electronic doorbell circuit, identify circuit faults, and select the fault type on display screen 5. The second controller 3, receiving the signal from display screen 5, energized the coils of KA1, KA5, and KA7, thus eliminating the main power supply open circuit fault, the short circuit fault in resistor R3, and the open circuit fault at the output of the 555 timer. The second controller 3 then fed back the assessment results to the teacher's end, which was configured to upload the assessment results to the server via WiFi module 6.
[0047] Taking the above configuration as an example, when practicing, students set the fault type through the display screen 5, and use an oscilloscope, multimeter and function signal generator to test the electronic doorbell circuit, determine the circuit fault, select the fault type through the display screen 5, and the second controller 3 receives the signal from the display screen 5 to control the coils of KA1, KA5 and KA7 to be energized, and the faults of the main power supply open circuit, resistor R3 short circuit and 555 timer output open circuit disappear.
[0048] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.
Claims
1. An electronic circuit fault diagnosis training and assessment device, comprising an instrument module (1), multiple student terminals and teacher terminals, characterized in that, The teacher terminal includes a first controller (2), and the student terminal includes a second controller (3). Both the first controller (2) and the second controller (3) are equipped with wireless communication modules. The first controller (2) and multiple second controllers (3) communicate through the wireless communication modules. Both the first controller (2) and the second controller (3) are also equipped with display screens (5). The first controller (2) and the second controller (3) are communicatively connected to the display screens (5). The multiple student terminals also include an electronic circuit fault board (8), which includes, but is not limited to, one or more combinations of electronic doorbell circuit, DC regulated power supply circuit, sound-controlled LED melody light circuit, light-controlled switch circuit based on phototransistor and LM358, common emitter amplifier circuit, flowing water light circuit, sound and light control light circuit and single-chip microcomputer application circuit. The electronic circuit fault board (8) is connected to the power supply to form a circuit.
2. The electronic circuit fault diagnosis training and assessment device according to claim 1, characterized in that, The student terminal also includes an electronic circuit fault diagnosis motherboard (7), the input terminal of which is connected to the IO port of the second controller (3), the electronic circuit fault diagnosis motherboard (7) is used to set fault points, and the output terminal of the electronic circuit fault diagnosis motherboard (7) is electrically connected to the electronic circuit fault board (8). The electronic circuit fault board (8) connects to the power supply to form a circuit through the electronic circuit fault diagnosis motherboard (7).
3. The electronic circuit fault diagnosis training and assessment device according to claim 1, characterized in that, The second controller (3) includes an MCU chip, which communicates with the display screen (5) via a UART serial port and with the wireless communication module via a UART serial port. Wireless communication modules include, but are not limited to, one or more combinations of Zigbee modules, WiFi modules, and Bluetooth modules.
4. The electronic circuit fault diagnosis training and assessment device according to claim 3, characterized in that, The first controller (2) includes an MCU chip, which communicates with the display screen (5) via a UART serial port; The MCU chip communicates with the wireless communication module via a UART serial port.
5. The electronic circuit fault diagnosis training and assessment device according to claim 1, characterized in that, The instrument module (1) includes an oscilloscope, a multimeter, and a function signal generator.
6. The electronic circuit fault diagnosis training and assessment device according to claim 1, characterized in that, The first controller (2) is connected to the server (10) via the wireless communication module.