Single-chip microcomputer technology practical training examination device with power supply management function

Abstract

The utility model provides a single-chip microcomputer technology practical training examination device with power supply management, comprising a rack, the rack is provided with a single-chip microcomputer module, an IO port direct drive type peripheral function module, a non-direct drive type peripheral function module, a drive module and a power supply system, and the IO port direct drive type peripheral function module is used for being directly connected with an IO port of the single-chip microcomputer module; the non-direct-drive peripheral function module is connected with an IO port of the single-chip microcomputer module through the drive module. The driving module comprises a power supply end; the power supply system comprises a first power supply unit, a second power supply unit and a controllable switch unit. The first power supply unit is used for providing required power for the single-chip microcomputer module; the second power supply unit is connected with the power supply end of the driving module through the controllable switch unit so as to provide power; a switch with an identity authorization path and a power utilization path are established, power management of the single-chip microcomputer technology practical training assessment device is realized, the practical training safety of students can be well guaranteed, and the equipment safety can also be well managed.

Description

Technical Field

[0001] The utility model belongs to the field of electronic teaching aids, and specifically relates to a single-chip computer technology training and assessment device with power management. Background Art

[0002] Microcontrollers are widely used in industrial control, consumer electronics, communications and other fields due to their simple structure and powerful functions. In order to cultivate students' programming ability and application technology, microcontroller training plays an important role in the field of education.

[0003] There are currently three main methods for learning and practicing single-chip microcomputer technology. The first is to simulate the single-chip microcomputer system through simulation software. This method has a strong sense of virtualization and simulation, and it is difficult to intuitively experience the interaction between the actions of hardware electronic parts and the corresponding real world; the second is to use a single-chip microcomputer development board, which contains some commonly used peripheral interfaces in addition to the single-chip microcomputer minimum system, such as LED, buttons, digital tubes, buzzers, relays, serial ports, etc. In this method, the single-chip microcomputer peripheral configuration and interface wiring are already set, and there are limitations in the richness of peripherals, the diversity of tasks, and the comprehensiveness of learning practice. The third is to use a single-chip microcomputer training device, which contains some commonly used peripheral interfaces in addition to the single-chip microcomputer minimum system. Students can perform hardware connections and programming exercises.

[0004] Most existing MCU training devices lack a power management system, which makes it impossible for teachers to remotely monitor the operating status of the device or remotely control the device. Students can power on the device at will without the teacher's authorization, which increases the risk factor during the training process and may lead to misoperation or unexpected situations.

[0005] In summary, it is of great significance to design a single-chip microcomputer technology training and assessment device with power management to ensure the safety of students' training and the safety of the device and equipment. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a single-chip microcomputer technology training and assessment device with power management to ensure the safety of student training and the training device.

[0007] The utility model provides a single-chip microcomputer technology training and assessment device with power management, comprising a bench, on which are arranged a single-chip microcomputer module, an IO port direct-drive type peripheral function module, a non-direct-drive type peripheral function module, a drive module, and a power supply system. The IO port direct-drive type peripheral function module is used to be directly connected to the IO port of the single-chip microcomputer module; the non-direct-drive type peripheral function module is connected to the IO port of the single-chip microcomputer module through the drive module; the drive module comprises a power supply end; the power supply system comprises a first power supply unit, a second power supply unit and a controllable switch unit; the first power supply unit is used to provide the required electricity to the single-chip microcomputer module; the second power supply unit is connected to the power supply end of the drive module through the controllable switch unit to provide electricity.

[0008] Furthermore, the controllable switch unit includes an electric-controlled switch unit, and correspondingly, the power supply system also includes a communication unit and a power supply control unit. The communication unit is communicatively connected to the power supply control unit, and the output of the power supply control unit is connected to the trigger end of the electric-controlled switch unit.

[0009] Furthermore, it also includes an identity recognition unit; the identity recognition unit is connected to the input of the power control unit.

[0010] Furthermore, the identity recognition unit includes at least one of a fingerprint recognition unit, an NFC recognition unit, a radio frequency recognition unit, and an image recognition unit.

[0011] Furthermore, the IO port direct-drive peripheral function module includes at least one of an LED module and a digital tube module.

[0012] Furthermore, the non-direct drive peripheral function module includes at least one of a buzzer module, a relay module, a speaker module, and a motor module.

[0013] Furthermore, the driving module includes at least one of a buzzer driving unit, a relay driving unit, a speaker driving unit, and a motor driving unit.

[0014] Furthermore, the driving module includes a power regulation circuit, and the power regulation circuit is used to match and regulate the voltage of the second power supply unit provided by the power supply system to the power voltage of the non-direct drive type peripheral functional module.

[0015] Furthermore, the power supply regulating circuit includes at least one of a voltage divider circuit, an LDO circuit, a voltage regulator diode circuit, and a switching power supply circuit.

[0016] The utility model sets an independent power supply for the non-direct drive peripheral function module and adds a switch function to control the power supply. When used in combination with a communication unit, an output current monitoring unit or an output power monitoring unit, the use of the power supply system can be remotely learned. Since the non-direct drive peripheral function module consumes a lot of electricity, when an incorrect connection occurs, the possibility of damaging the hardware is higher. Therefore, the corresponding drive module is connected to the second power supply unit of the power supply system. When the controllable switch unit is disconnected, the second power supply unit cannot provide electricity to the power supply end of the drive module, and then this part of the peripheral module cannot be used at this time; for IO port direct drive peripheral function modules such as LEDs, since the power consumption is small, they can work by directly connecting to the IO port of the microcontroller. Even if there is a reverse connection or pin connection error, it is relatively safe and will not damage the equipment or cause a high risk.

[0017] Compared with the prior art, the utility model realizes power management of the single-chip microcomputer technology training and assessment device by establishing a switch and power supply path with an identity authorization path, which can better ensure the training safety of students and better manage the safety of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the circuit topology schematic diagram of this practical training and assessment device. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below with reference to the accompanying drawings, and specific implementation methods are given.

[0020] The utility model provides a single-chip microcomputer technology training and assessment device with power management, comprising a bench, on which a single-chip microcomputer module, an IO port direct-drive peripheral function module, a non-direct-drive peripheral function module, a drive module, and a power supply system are arranged. Figure 1As shown, the IO port direct-drive type peripheral function module is used to directly connect to the IO port of the single-chip microcomputer module; the non-direct-drive type peripheral function module is connected to the IO port of the single-chip microcomputer module through the driving module; the driving module includes a power supply end; the power supply system includes a first power supply unit, a second power supply unit and a controllable switch unit; the first power supply unit is used to provide the required power to the single-chip microcomputer module; the second power supply unit is connected to the power supply end of the driving module through the controllable switch unit to provide power. The first power supply unit is provided with a current limiting circuit, and the current limiting circuit is connected in series to the output circuit of the first power supply unit. At the same time, the current limiting size can be selectively set, such as limiting the current size to no more than 500 mA, on the one hand, providing the required power for the single-chip microcomputer and the corresponding IO port direct-drive type peripheral function module, on the other hand, the first power supply unit has circuit protection and cannot output a large current, so that the entire device circuit will not be damaged due to incorrect connection or partial failure damage; the controllable switch unit includes an electric control switch unit, such as a relay, and correspondingly, the power supply system also includes a communication unit and a power control unit, the communication unit is connected to the power control unit for communication, and the output of the power control unit is connected to the trigger end of the electric control switch unit. Through the electric control switch unit, the power control unit can realize the automatic control function, and through the communication unit, the entire device can have the basis for remote control; the communication unit can be a wired communication unit or a wireless communication unit; the wired communication unit is such as an RS232 communication unit, and the wireless communication unit can be one of 4G, 5G, WIFI communication unit, and ZIGBEE communication. The single-chip microcomputer technology training and assessment device also includes an identity recognition unit; the identity recognition unit is connected to the input of the power control unit. The identity recognition unit includes at least one of a fingerprint recognition unit, an NFC recognition unit, a radio frequency recognition unit, and an image recognition unit. The identity recognition unit, the NFC recognition unit, the radio frequency recognition unit, and the image recognition unit are all existing modules with read and write functions, which can be conveniently connected to the power control unit and establish an identity recognition relationship, thereby realizing authorized application management of the entire device, reducing unnecessary losses caused by lack of professional knowledge and management, and strengthening the management of the training process. Through the identity recognition unit, the power control unit and the communication unit, a platform is established to record the application status of the trainees during normal training; the IO port direct-drive peripheral function module includes at least one of an LED module and a digital tube module.The non-direct drive peripheral function module includes at least one of a buzzer module, a relay module, a speaker module, and a motor module. Although many buzzers can realize direct drive of the IO port of the single-chip microcomputer, in some scenarios, the buzzer needs to be used to make different feedbacks on the signal, such as the simulation of the electronic piano. The direct drive of the IO port of the single-chip microcomputer is weak in terms of power supply and distribution, occupation of the IO port resources of the single-chip microcomputer, etc. Therefore, the buzzer module is still included in the non-direct drive peripheral function module in this embodiment; the drive module includes at least one of a buzzer drive unit, a relay drive unit, a speaker drive unit, and a motor drive unit. The drive module includes a power supply regulation circuit, which is used to match and adjust the voltage of the second power supply unit provided by the power supply system to the power voltage of the non-direct drive peripheral function module. The power supply regulation circuit includes at least one of a voltage divider circuit, an LDO circuit, a voltage regulator diode voltage regulator circuit, and a switching power supply circuit.

[0021] The utility model sets an independent power supply for the non-direct drive peripheral function module and adds a switch function to control the power supply. When used in combination with a communication unit, an output current monitoring unit or an output power monitoring unit, the use of the power supply system can be remotely learned. Since the non-direct drive peripheral function module consumes a lot of electricity, when an incorrect connection occurs, the possibility of damaging the hardware is higher. Therefore, the corresponding drive module is connected to the second power supply unit of the power supply system. When the controllable switch unit is disconnected, the second power supply unit cannot provide electricity to the power supply end of the drive module, and then this part of the peripheral module cannot be used at this time; for IO port direct drive peripheral function modules such as LEDs, since the power consumption is small, they can work by directly connecting to the IO port of the microcontroller. Even if there is a reverse connection or pin connection error, it is relatively safe and will not damage the equipment or cause a high risk.

[0022] Compared with the prior art, the utility model realizes power management of the single-chip microcomputer technology training and assessment device by establishing a switch and power supply path with an identity authorization path, which can better ensure the training safety of students and better manage the safety of equipment.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A single-chip microcomputer technology training and assessment device with power management, characterized in that: The invention comprises a stand, on which are arranged a single-chip microcomputer module, an IO port direct-drive peripheral function module, a non-direct-drive peripheral function module, a driving module, and a power supply system. The IO port direct-drive peripheral function module is used to be directly connected to the IO port of the single-chip microcomputer module; the non-direct-drive peripheral function module is connected to the IO port of the single-chip microcomputer module through the driving module; the driving module comprises a power supply end; the power supply system comprises a first power supply unit, a second power supply unit and a controllable switch unit; the first power supply unit is used to provide the required electricity to the single-chip microcomputer module; the second power supply unit is connected to the power supply end of the driving module through the controllable switch unit to provide electricity.

2. A single-chip microcomputer technology training and assessment device with power management as claimed in claim 1, characterized in that: The controllable switch unit includes an electric-controlled switch unit. Correspondingly, the power supply system further includes a communication unit and a power control unit. The communication unit is communicatively connected to the power control unit, and the output of the power control unit is connected to the trigger end of the electric-controlled switch unit.

3. A single-chip microcomputer technology training and assessment device with power management as claimed in claim 2, characterized in that: It also includes an identity recognition unit; the identity recognition unit is connected to the input of the power control unit.

4. A single-chip microcomputer technology training and assessment device with power management as claimed in claim 3, characterized in that: The identity recognition unit includes at least one of a fingerprint recognition unit, an NFC recognition unit, a radio frequency recognition unit, and an image recognition unit.

5. The single-chip microcomputer technology training and assessment device with power management as claimed in claim 1, characterized in that: The IO port direct drive peripheral function module includes at least one of an LED module and a digital tube module.

6. A single-chip microcomputer technology training and assessment device with power management as claimed in claim 1, characterized in that: The non-direct drive peripheral function module includes at least one of a buzzer module, a relay module, a speaker module, and a motor module. Correspondingly, the drive module includes at least one of a buzzer drive unit, a relay drive unit, a speaker drive unit, and a motor drive unit.

7. A single-chip microcomputer technology training and assessment device with power management as claimed in claim 2, characterized in that: The power supply system further comprises an output current monitoring unit or an output power monitoring unit, and the output current monitoring unit or the output power monitoring unit is connected to the input of the power supply control unit.

8. A single-chip microcomputer technology training and assessment device with power management as claimed in claim 7, characterized in that: The driving module includes a power regulating circuit, and the power regulating circuit is used to match and regulate the voltage of the second power supply unit provided by the power system to the power voltage used by the non-direct drive type peripheral functional module.

9. A single-chip microcomputer technology training and assessment device with power management as claimed in claim 8, characterized in that: The power supply regulating circuit includes at least one of a voltage divider circuit, an LDO circuit, a voltage regulator diode voltage regulator circuit, and a switching power supply circuit.

Images