CN205158759U - A New Single Chip Microcomputer Practical Teaching System - Google Patents

Abstract

The utility model discloses a novel singlechip practice teaching system, which comprises a singlechip experimental device, a power supply assembly, a power switch and a plurality of onboard extended function repositories; onboard extended function repository comprises a traffic light controller, an electronic organ, a sensor assembly, a double-computer communication storage device, a signal source generator, an electronic coded lock, a stepping motor forward and backward rotation controller, a robot infrared navigation controller, an LED assembly and a nixie tube device, a plurality of onboard extended function repositories draw out and set up to user-defined connection between the port and the interface of singlechip experimental apparatus, be provided with serial socket on the singlechip experimental apparatus and be connected with the USB plug through the converter, power supply module respectively with singlechip experimental apparatus and a plurality of onboard extended function repositories electric connection. The utility model discloses with every board carry extended function repository independent setting, it is convenient to dismantle, is convenient for use along with the singlechip function board of the different demands of development of singlechip from now on.

Description

A New Single Chip Microcomputer Practical Teaching System

technical field

The utility model belongs to the field of single-chip microcomputer teaching, in particular to a novel single-chip microcomputer practical teaching system.

Background technique

At present, single-chip microcomputer technology is a course emphasizing practicality and application, which aims to focus on cultivating students' ability to analyze and solve problems, but it is not easy to carry out the teaching and practice of this course. The teaching practice reform of the single-chip course has been perplexing teachers, how to teach scientifically and rationally has always been a research topic for single-chip teaching and experimental personnel. Most of the existing single-chip microcomputer teaching instruments are traditional experimental boxes with single function, poor system, integrity, authenticity and interest, which is not conducive to cultivating students' systematic learning and mastering of single-chip microcomputer knowledge and application ability, and cannot mobilize students to learn single-chip microcomputer The enthusiasm of students, not to mention the learning initiative of students.

Most of the existing modular teaching practice modules use serial ports for reading and writing programs, but most of the current computer interfaces use USB interfaces. The reading and writing of programs in the serial port mode is not very convenient and not very universal. At present, MCU teaching development boards are generally divided into simple type and multi-function type. The simple type generally takes teaching demonstration as an example, and its functions are relatively simple. Afterwards, the volume is reduced and it is easy to carry. However, it is not easy for beginners to grasp its hardware structure when learning single-chip microcomputers. It cannot provide good help for the components used in the single-chip hardware system and the understanding of each component. In the design and debugging process of the single-chip microcomputer, because it is integrated with irrelevant hardware, it is not conducive to the search of the problem, and it cannot highlight the key points and points of the single-chip microcomputer teaching practice. When the MCU needs to develop new functions, because the hardware is relatively fixed and there are fewer expansion modules, the peripheral resources of the MCU can be used relatively less. If you want to add some new functions, you will be limited by the existing hardware.

Utility model content

The purpose of this utility model is to provide a new single-chip practice teaching system, which aims to solve the problem that the existing single-chip practice teaching system cannot set the on-board expansion function module separately, it is inconvenient to disassemble, it cannot be used for a long time, and it is inconvenient to connect with the computer communication issues.

The utility model is achieved in this way. A novel single-chip practice teaching system includes a single-chip experimental device, a power supply assembly, a power switch and a plurality of on-board extended function storages. The on-board extended function storages include traffic light controllers, electronic keyboard control chip, sensor components, two-machine communication memory, signal source generator, electronic combination lock, stepper motor forward and reverse controller, robot infrared navigation controller, LED components and digital tube devices, the multiple onboard The lead-out port of the extended function storage library and the interface of the single-chip experimental device are set as a user-defined connection. The single-chip experimental device is provided with a serial port socket, and the serial port socket is connected with a USB plug through a converter. The power supply components are respectively connected to the single-chip experimental device and The multiple onboard extended function storage banks are electrically connected, and the power switch is electrically connected to the power supply component.

Further, the onboard extended function storage library also includes a button chip, a buzzer chip and an infrared remote control receiving chip and is electrically connected to the power supply component. The sensor component includes a speed tester, a voltmeter, a temperature measuring instrument, An infrared ranging sensor chip and an ultrasonic sensor chip, the sensor components are electrically connected to the power supply components.

Further, the electronic organ control chip is connected with the traffic light controller, the signal source generator, the forward and reverse controller of the stepper motor, and the LED assembly respectively through the single-chip microcomputer experimental device so as to form an expansion module with a keyboard input function.

Further, the two-computer communication memory is respectively connected with the traffic light controller, the electronic keyboard, the sensor assembly, the signal source generator, the electronic password lock, the forward and reverse controller of the stepping motor, the robot infrared navigation controller, The LED component, the button chip, the buzzer chip, the digital tube device, and the infrared remote control receiving chip are connected to form a single-chip microcomputer serial port expansion module respectively.

Further, the LED components are respectively connected with the electronic organ, the sensor component, the signal source generator, and the two-machine communication storage through the single-chip microcomputer experimental device, so as to form the single-chip microcomputer output display expansion modules respectively.

Further, the power supply assembly includes a power connection device, an electrical storage device and a relay protection device.

Further, the power connection device includes at least one power input device connected to an external power source and at least one load output device connected to a load.

Further, the power storage device includes a battery charging and discharging device connected to a battery.

Further, the LED assembly includes a substrate, an LED chip, metal wiring, encapsulating resin, and coating components, the LED chip is supported by the substrate, the metal wiring is arranged on the substrate, and has a The mounting portion where the LED chip is mounted, the encapsulating resin covers the LED chip and the metal wiring, the coating member covers the metal wiring so as to expose the mounting portion, the encapsulating resin Cover the coated parts as described.

Further, the digital tube device includes a circuit board, an input socket and a digital tube mounted on the circuit board, the circuit board includes a shift register and a control driver, and the input signal is sent to the input socket through the input socket. The shift register, the signal output by the shift register is transmitted to the control driver to control and drive the digital tube to light up, and the circuit board is provided with perforations to facilitate fixing the digital tube device on an external device.

The utility model solves the problems of independence and compoundness of the onboard extended function modules, and the independent setting of the onboard extended function storage library is beneficial for students to understand and master the hardware composition of the single-chip microcomputer, which is convenient for students to design and debug the single-chip microcomputer, and is convenient Find problems and highlight the key points and points of MCU design and development. At the same time, the on-board extended function storage library can be built with building blocks according to the design requirements to complete the hardware expansion. The on-board extended function storage library is easy to disassemble and easy to update and develop modules. The device can be used for a long time without additional redesign and production, overcomes the previous integrated single-chip teaching development board, and can flexibly update different modules. The single-chip microcomputer experimental device of the utility model adopts a USB interface to communicate with a computer, and the single-chip microcomputer experimental device adopts ST series single-chip microcomputers, does not need to purchase additional program burners, saves costs, and is convenient for students to carry out spare-time learning and improvement of single-chip microcomputer technology.

Description of drawings

Fig. 1 is the structural representation of the novel single-chip microcomputer practice teaching system that the utility model embodiment provides;

Fig. 2 is a schematic structural diagram of a power supply assembly provided by an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a sensor assembly provided by an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of an LED assembly provided by an embodiment of the present invention.

In the figure: 1. Single-chip microcomputer experimental device; 1-1, serial port socket; 1-2, converter; 1-3, USB plug; 2, power supply component; 2-1, power connection device; 2-2, power storage device ;2-3, relay protection device; 3, power switch; 4, onboard extended function storage; 4-1, traffic light controller; 4-2, electronic keyboard; 4-3, sensor components; 4-3- 1. Speed tester; 4-3-2. Voltmeter; 4-3-3. Temperature measuring instrument; 4-3-4. Infrared ranging sensor chip; 4-3-5. Ultrasonic sensor chip; 4-4 , Two-machine communication memory; 4-5, signal source generator; 4-6, electronic password lock; 4-7, stepper motor forward and reverse controller; 4-8, robot infrared navigation controller; 4-9 , LED components; 4-9-1, substrate; 4-9-2, LED chips; 4-9-3, metal wiring; 4-9-4, packaging resin; 4-9-5, coating parts; 4 -10, button chip; 4-11, buzzer chip; 4-12, digital tube device; 4-13, infrared remote control receiving chip.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Below in conjunction with accompanying drawing, the application principle of the present utility model is further described.

A new single-chip practice teaching system, the new single-chip practice teaching system includes a single-chip experiment device 1, a power supply component 2, a power switch 3 and a plurality of on-board extended function storage 4, the on-board extended function storage 4 includes transportation Light controller 4-1, electronic organ 4-2, sensor assembly 4-3, two-machine communication storage 4-4, signal source generator 4-5, electronic password lock 4-6, stepper motor forward and reverse controller 4-7, robot infrared navigation controller 4-8, LED assembly 4-9, button chip 4-10, buzzer chip 4-11, digital tube device 4-12 and infrared remote control receiving chip 4-13, the The connection between the lead-out ports of a plurality of on-board extended function storage libraries 4 and the interface of the single-chip microcomputer experimental device 1 is a user-defined connection, and the single-chip microcomputer experimental device 1 is provided with a serial port socket 1-1, and the serial port socket 1-1 passes The device 1-2 is connected with a USB plug 1-3, and the power module 3 is electrically connected with the single-chip microcomputer experimental device 1 and a plurality of on-board extended function storage banks 4 to provide working power.

The sensor assembly 4-3 includes a rotational speed tester 4-3-1, a voltmeter 4-3-2, a temperature measuring instrument 4-3-3, an infrared ranging sensor chip 4-3-4, and an ultrasonic sensor chip 4 -3-5.

Described electronic organ 4-2 is connected with traffic light controller 4-1, signal source generator 4-5, stepping motor forward and reverse controller 4-8, LED assembly 4-9 respectively by single-chip microcomputer experimental device 1 so that Respectively form an expansion module with keyboard input function setting.

Described two-machine communication storage 4-4 is respectively connected with traffic light controller 4-1, electronic organ 4-2, sensor assembly 4-3, two-machine communication storage 4-4, signal source generator through single-chip microcomputer experimental device 1 4-5, electronic password lock 4-6, stepper motor forward and reverse controller 4-7, robot infrared navigation controller 4-8, LED component 4-9, button chip 4-10, buzzer chip 4- 11. The nixie tube device 4-12 is connected with the infrared remote control receiving chip 4-13 so as to form a single-chip microcomputer serial port expansion module respectively.

Described LED assembly 4-9 is respectively connected with electronic organ 4-2, sensor module 4-3, signal source generator 4-5, two-machine communication module 4-4 through single-chip microcomputer experimental device so as to form single-chip microcomputer output display expansion module respectively .

The power supply assembly 2 includes a power connection device 2-1, a power storage device 2-2 and a relay protection device 2-3.

The power connection device 2-1 includes at least one power input device connected to an external power source and at least one load output device connected to a load.

The power storage device 2-2 includes a battery charging and discharging device connected to a battery.

The LED assembly 4-9 includes a substrate 4-9-1, an LED chip 4-9-2, a metal wiring 4-9-3, an encapsulating resin 4-9-4, and a coating part 4-9-5. The LED chip 4-9-2 is supported by the substrate 4-9-1, and the metal wiring 4-9-3 is provided on the substrate 4-9-1 and has a The packaging resin 4-9-4 described in the mounting part of 4-9-2 covers the LED chip 4-9-2 and the metal wiring 4-9-3, and the coating part 4-9-5 The metal wiring 4-9-3 is covered to expose the mounting portion, and the encapsulation resin 4-9-4 covers the coating member 4-9-5.

Described nixie tube device 4-12 comprises a circuit board and the input socket and nixie tube that are installed on described circuit board, comprises shift register and control driver in the described circuit board, wherein input signal is conveyed by described input socket For the shift register, the signal output by the shift register is connected to the control driver to control and drive the digital tube to light; the circuit board is provided with a device to facilitate fixing the digital tube device on an external device perforation.

working principle:

The utility model solves the problem of independence and compoundness of the onboard extended function storage library. The independent setting of the onboard extended function storage library is beneficial for students to understand and master the hardware composition of the single-chip microcomputer, and facilitates the design and debugging of the single-chip microcomputer for students. It is easy to find problems and highlight the key points and points of single-chip design and development. At the same time, the on-board expansion function storage library can be built with building blocks according to the design requirements to complete the hardware expansion. The on-board expansion function modules are easy to disassemble and easy to update and develop modules. There is no need to redesign and make it again. The device can be used for a long time, overcomes the previous integrated single-chip teaching development board, and can flexibly update different modules; the single-chip experimental device 1 uses a USB interface to communicate with the computer, and the single-chip experimental device uses ST The series single-chip microcomputer does not need to purchase another program burner, which saves costs and is convenient for students to carry out spare-time learning and improvement of single-chip microcomputer technology.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. a New Type of Chip Microcomputer practicing teaching system, it is characterized in that, this New Type of Chip Microcomputer practicing teaching system comprises singlechip experimental facility, power supply module, power switch and multiple plate carry expanded function storage vault, described plate carries expanded function storage vault and comprises traffic light controller, mellotron, sensor module, two machine communication reservoir, signal source generator, electronic password lock, stepper motor positive and negative rotating controller, robot infrared navigation controller, LED component and charactron device, described multiple plate carries and is set to User Defined between the extraction port of expanded function storage vault and the interface of singlechip experimental facility and is connected, singlechip experimental facility is provided with serial ports socket, and serial ports socket is connected with USB plug by converter, power supply module carries expanded function storage vault with singlechip experimental facility and multiple plate respectively and is electrically connected, described power switch and power supply module are electrically connected.

2. New Type of Chip Microcomputer practicing teaching system as claimed in claim 1, it is characterized in that, described plate carries expanded function storage vault and also comprises button chip, hummer chip and infrared remote control and accept chip and be electrically connected with power supply module, described sensor module comprises rotational speed detector, voltage table, temperature measuring set, infrared distance sensor chip and ultrasonic sensor chip, and described sensor module and power supply module are electrically connected.

3. New Type of Chip Microcomputer practicing teaching system as claimed in claim 1, it is characterized in that, described mellotron is connected with traffic light controller, signal source generator, stepper motor positive and negative rotating controller, LED component respectively by singlechip experimental facility.

4. New Type of Chip Microcomputer practicing teaching system as claimed in claim 1, it is characterized in that, described two machine communication reservoir is accepted chip and is connected with traffic light controller, mellotron, sensor module, signal source generator, electronic password lock, stepper motor positive and negative rotating controller, robot infrared navigation controller, LED component, button chip, hummer chip, charactron device, infrared remote control by singlechip experimental facility respectively.

5. New Type of Chip Microcomputer practicing teaching system as claimed in claim 1, it is characterized in that, described LED component is connected with mellotron, sensor module, signal source generator, two machine communication reservoir respectively by singlechip experimental facility.

6. New Type of Chip Microcomputer practicing teaching system as claimed in claim 1, it is characterized in that, described power supply module comprises power supply connecting device, electrical storage device and protective relaying device.

7. New Type of Chip Microcomputer practicing teaching system as claimed in claim 6, is characterized in that, described power supply connecting device comprises at least one power input connecting external power source is connected load load output unit with at least one.

8. New Type of Chip Microcomputer practicing teaching system as claimed in claim 6, is characterized in that, described electrical storage device comprises the battery charge and discharge device connecting accumulator.

9. New Type of Chip Microcomputer practicing teaching system as claimed in claim 1, it is characterized in that, described LED component comprises substrate, LED chip, metal line, potting resin, coated components, described LED chip supported by described substrate, described metal line is established on the substrate, and the installation portion had for installing described LED chip, described potting resin covers described LED chip and described metal line, described coated components covers described metal line in the mode exposing described installation portion, the coated components described in described potting resin covers.

10. New Type of Chip Microcomputer practicing teaching system as claimed in claim 1, it is characterized in that, described charactron device comprises one piece of circuit board and the input socket be arranged on described circuit board and charactron, shift register and control and drive system is comprised in described circuit board, input signal flows to described shift register by described input socket, the Signal transmissions of described shift register output, to described control and drive system, described circuit board is provided with the perforation of being convenient to be fixed on by this charactron device on external unit.