CN113129672A - Building block type modularized Internet of things teaching hardware practice platform - Google Patents
Building block type modularized Internet of things teaching hardware practice platform Download PDFInfo
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Abstract
Building block type modularized Internet of things teaching hardware practice platform. The product comprises the following components: the thing networking practice platform, thing networking practice platform be provided with core development board, input/output control module group, wireless communication module group, information acquisition module group, system expansion, other module groups, the core development board comprises STM32 development board module and 51 singlechip development board module, input/output control module group is by the switch, matrix keyboard and LED module, charactron display module, OLED display module, 2 way relay switch module, step motor control module constitutes, information acquisition module group is by the reputation sensor module, the dust sensor module, triaxial acceleration module, the temperature acquisition module, flame detection module, pyroelectric infrared sensor module, MQ-2 sensor module, ultraviolet sensor module, the water level sensor module, temperature and humidity sensor module, the collection module of making a video recording. The invention is used for a hardware practice platform.
Description
The technical field is as follows:
the invention relates to a building block type modularized Internet of things teaching hardware practice platform.
Background art:
with the wide application of the internet +, the course system of the internet of things faces perfection and challenge, and especially how to select a hardware design and development practice platform which can be oriented to future employment and suitable for professional students to learn in the perception and transmission layers is very important.
The internet of things hardware design development technology is obviously different from teaching modes and teaching means of theoretical learning courses, the technology development focuses on practice, a relatively complete hardware system support is required, the technical principle and the implementation method can be mastered through continuous manual practice, and the final aim of applying the learned technology to actual product and project development is achieved. Therefore, how to select, build a development platform, and complete a typical application experiment so as to achieve the basic skills of developing products and projects by using the learned technology is the key point of teaching.
The key points of the building block type modularized Internet of things teaching hardware practice platform and the Internet of things experiment box, the experiment board and the like are that the Internet of things experiment box, the experiment board and the like can only complete course experiments, practical training and the like, and theoretical teaching is difficult to complete.
The invention content is as follows:
the invention aims to provide a building block type modularized Internet of things teaching hardware practice platform for dredging pipelines in a manual pressurization mode.
The above purpose is realized by the following technical scheme:
a modular internet of things teaching hardware practice platform comprises: an internet of things practice platform is provided with a core development board, an input and output control module group, a wireless communication module group, an information acquisition module group, a system expansion module and other module groups, the core development board consists of an STM32 development board module and a 51 singlechip development board module, the input/output control module group consists of a switch, a matrix keyboard, an LED module, a nixie tube display module, an OLED display module, a 2-way relay switch module and a stepping motor control module, the information acquisition module group comprises an acousto-optic sensor module, a dust sensor module, a three-axis acceleration module, a temperature acquisition module, a flame detection module, a pyroelectric infrared sensor module, an MQ-2 sensor module, an ultraviolet sensor module, a water level sensor module, a temperature and humidity sensor module and a camera acquisition module; the wireless communication module group consists of a wifi wireless communication module, an HC-05 serial port Bluetooth module, a ZigBee wireless communication module, a GSM/GPRS wireless data transmission module, an RFID radio frequency IC card induction module and a WH-NB wireless communication module; the other module group comprises a power input module, a power wiring expansion module and a subsequent platform system expansion assembly.
According to the building block type modularized Internet of things teaching hardware practice platform, the switch, the matrix keyboard and the LED module are connected with a GPIO port of an STM32 through a P1-P6 wiring port of the module, programming, compiling, debugging and downloading of programs are completed on a PC, and a group of experiments of switch input, matrix keyboard input and LED output display are realized;
the nixie tube display module is connected with the GPIO port of the STM32 through the P1-P2 wiring port of the module, completes the writing, debugging, compiling and downloading of programs on a PC (personal computer), realizes nixie tube working principle experiments and is used as a group of project or experimental data display.
The building block type modularized Internet of things teaching hardware practice platform is characterized in that the ZigBee wireless communication module is connected with a GPIO port of the STM32 through 10 wiring port pins of the building block type modularized Internet of things teaching hardware practice platform, programming, compiling, debugging and downloading of programs are completed on a PC, and the working principle of the ZigBee wireless communication module, the design of an Internet of things sensing node of the communication module by the ZigBee, and the design and experiment of the ZigBee networking function are realized.
According to the building-block type modularized Internet of things teaching hardware practice platform, 1-4 pins of a J1 port of the dust sensor module are respectively connected with a power supply of a core board module and GPIO pins, programming, compiling, debugging and downloading of programs are completed on a PC (personal computer), and real-time collection of environmental dust amount is realized;
the temperature acquisition module and the temperature and humidity sensor module are characterized in that the output ports and power supply pins of the temperature acquisition module and the temperature and humidity sensor module are respectively connected with the power supply and GPIO pins of the core board module, and the compiling, debugging and downloading of programs are completed on a PC (personal computer), so that the real-time acquisition of the environment temperature and the temperature and humidity is realized;
the ultraviolet sensor module is characterized in that an output port and a power supply pin of the ultraviolet sensor module are respectively connected with a power supply of the core board module and a GPIO pin, and the writing, compiling, debugging and downloading of a program are completed on a PC (personal computer) to realize the real-time acquisition of the intensity of the environmental ultraviolet rays;
the building block type modularized Internet of things teaching hardware practice platform is characterized in that the power input module provides power input for the whole platform and prevents overcurrent and short circuit protection through a protective tube;
the power supply wiring extension module provides a power supply output pin for the core development board, and a system formed by the modules and the core board provides a power supply input pin.
The building block type modularized Internet of things teaching hardware practice platform is in modularized design, each module is independent, each module is not connected before an experiment or a project is carried out, and the modules are required to be connected with the modules by DuPont wires when in use.
Has the advantages that:
1. the invention can well and organically combine theoretical teaching, circuit design, software programming and the like by using the building block type modularized Internet of things teaching hardware practice platform, and helps students to master the development technology of the related hardware of the Internet of things as soon as possible.
2. The invention uses modular building block design, and can comprehensively realize the factors of function, reliability, module price, convenient use and the like for each module according to specific requirements, and adopts two schemes of direct purchase and autonomous design.
Description of the drawings:
fig. 1 is a schematic structural diagram of a practical platform of the internet of things.
Fig. 2 is a first schematic diagram of a switch, a matrix keyboard and an LED module of the product.
Fig. 3 is a second schematic diagram of the switch, the matrix keyboard and the LED module of the product.
Fig. 4 is a third schematic diagram of the switch, the matrix keyboard and the LED module of the product.
Fig. 5 is a schematic diagram of a nixie tube display module of the product.
Fig. 6 is a schematic diagram of a ZigBee wireless communication module of the present product.
Fig. 7 is a schematic circuit diagram of a dust sensor module of the present product.
Fig. 8 is a schematic diagram of a temperature acquisition module and a temperature and humidity sensor module of the product.
Fig. 9 is a schematic diagram II of a temperature acquisition module and a temperature and humidity sensor module of the product.
Fig. 10 is a schematic diagram of an ultraviolet sensor module of the present product.
Fig. 11 is a schematic circuit diagram of a power input module of the product.
Fig. 12 is a first circuit schematic diagram of the power connection expansion module of the product.
Fig. 13 is a circuit schematic diagram of a power connection expansion module of the product.
Fig. 14 is a third schematic circuit diagram of the power connection expansion module of the product.
The specific implementation mode is as follows:
example 1:
a modular internet of things teaching hardware practice platform comprises: an internet of things practice platform is provided with a core development board, an input and output control module group, a wireless communication module group, an information acquisition module group, a system expansion module and other module groups, the core development board consists of an STM32 development board module and a 51 singlechip development board module, the input/output control module group consists of a switch, a matrix keyboard, an LED module, a nixie tube display module, an OLED display module, a 2-way relay switch module and a stepping motor control module, the information acquisition module group comprises an acousto-optic sensor module, a dust sensor module, a three-axis acceleration module, a temperature acquisition module, a flame detection module, a pyroelectric infrared sensor module, an MQ-2 sensor module, an ultraviolet sensor module, a water level sensor module, a temperature and humidity sensor module and a camera acquisition module; the wireless communication module group consists of a wifi wireless communication module, an HC-05 serial port Bluetooth module, a ZigBee wireless communication module, a GSM/GPRS wireless data transmission module, an RFID radio frequency IC card induction module and a WH-NB wireless communication module; the other module group comprises a power input module, a power wiring expansion module and a subsequent platform system expansion assembly.
Example 2:
in the building block type modularized internet of things teaching hardware practice platform described in embodiment 1, the switch, the matrix keyboard and the LED module are connected with the GPIO port of STM32 through the P1-P6 wiring port of the module, and program compiling, debugging and downloading are completed on a PC, so that a set of experiments of switch input, matrix keyboard input and LED output display are realized;
the nixie tube display module is connected with the GPIO port of the STM32 through the P1-P2 wiring port of the module, completes the writing, debugging, compiling and downloading of programs on a PC (personal computer), realizes nixie tube working principle experiments and is used as a group of project or experimental data display.
Example 3:
the building block type modularized Internet of things teaching hardware practice platform is characterized in that the ZigBee wireless communication module is connected with a GPIO port of an STM32 through 10 wiring port pins of the building block type modularized Internet of things teaching hardware practice platform, programming, compiling, debugging and downloading of programs are completed on a PC, and the working principle of the ZigBee wireless communication module, the design of an Internet of things sensing node of the communication module by the ZigBee, and the design and experiment of ZigBee networking functions are realized.
Example 4:
in the building block type modularized internet of things teaching hardware practice platform in embodiment 1, the dust sensor module is characterized in that 1-4 pins of a J1 port of the dust sensor module are respectively connected with a power supply of a core board module and GPIO pins, and programming, compiling, debugging and downloading of a program are completed on a PC, so that real-time collection of environmental dust amount is realized;
the temperature acquisition module and the temperature and humidity sensor module are characterized in that the output ports and power supply pins of the temperature acquisition module and the temperature and humidity sensor module are respectively connected with the power supply and GPIO pins of the core board module, and the compiling, debugging and downloading of programs are completed on a PC (personal computer), so that the real-time acquisition of the environment temperature and the temperature and humidity is realized;
the ultraviolet sensor module is characterized in that an output port and a power supply pin of the ultraviolet sensor module are respectively connected with a power supply of the core board module and a GPIO pin, and the writing, compiling, debugging and downloading of a program are completed on a PC (personal computer) to realize the real-time acquisition of the intensity of the environmental ultraviolet rays;
example 5:
the modular internet of things teaching hardware practice platform of embodiment 1 is characterized in that the power input module provides power input for the whole platform and prevents overcurrent and short circuit protection through a protective tube;
the power supply wiring extension module provides a power supply output pin for the core development board, and a system formed by the modules and the core board provides a power supply input pin.
Example 6:
Example 7:
the modular internet of things teaching hardware practice platform of the above embodiment, the switch, the matrix keyboard and the LED module include port P1, port P2, port P3, port P4, port P5, port P6, pin 1 of port P1 connects with key S1, key S2, key S3, key S4, pin 2 of port P1 connects with key S5, key S6, key S7, key S8, pin 3 of port P1 connects with key S9, key S10, key S11, key S12, pin 4 of port P1 connects with key S13, key S14, key S15, key S16, key S1, key S5, key S9, and key S13 all connect with pin 1 of port P2; the No. 2 pin of the port P2 is connected with a key S14, a key S10, a key S6 and a key S2, the No. 3 pin of the port P2 is connected with a key S15, a key S11, a key S7 and a key S3, and the No. 4 pin of the port P2 is connected with a key S16, a key S12, a key S8 and a key S4.
The pin 1 of the port P3 is connected with a single-pole double-throw switch K1, the pin 2 of the port P3 is connected with a single-pole double-throw switch K2, the pin 3 of the port P3 is connected with a single-pole double-throw switch K3, and the pin 4 of the port P3 is connected with a single-pole double-throw switch K5.
Example 8:
the modular internet of things teaching hardware practice platform of the building block type according to the embodiment includes a port P1, a pin 1 of the port P1 is connected with a resistor R10, a pin 8 of the port P1 is connected with a resistor R17, a pin 12 of the port P1 is connected with a triode Q1, a triode Q1 is connected with a resistor R1, and a resistor R1 is connected with a pin 1 of the port P2; the pin 9 of the port P1 is connected with a triode Q2, the triode Q2 is connected with a resistor R2, and the resistor R2 is connected with the pin 2 of the port P2; the No. 8 pin of the port P1 is connected with a triode Q3, the triode Q3 is connected with a resistor R3, and the resistor R3 is connected with the No. 3 pin of the port P2; the No. 6 pin of the port P1 is connected with a triode Q4, the triode Q4 is connected with a resistor R4, and the resistor R4 is connected with the No. 4 pin of the port P2.
Example 9:
in the hardware practice platform for teaching of building block type modularized internet of things in the above embodiment, the pin 7 of the ZigBee wireless communication module is connected with the resistor R1, the resistor R1 is connected with the light emitting diode LED3, the pin 8 of the ZigBee wireless communication module is connected with the resistor R2, the resistor R2 is connected with the light emitting diode LED4, the pin 4 of the ZigBee wireless communication module is connected with the single-pole double-throw switch K1, and the capacitor C1 is connected between the pin 2 and the pin 1 of the ZigBee wireless communication module.
Example 10:
the dust sensor module of the building-block modular internet-of-things teaching hardware practice platform of the embodiment comprises a chip U1, a pin 6 of the chip U1 is connected with a resistor R1, the resistor R1 is connected with a capacitor C1, a pin 5 of the chip U1 is connected with a resistor R3, the resistor R3 is connected with a resistor R4, a pin 3 of the chip U1 is connected with a triode Q1, the triode Q1 is connected with the resistor R2, and the resistor R2 is connected with a port J1.
Example 11:
in the above-mentioned embodiment of the building-block modular internet-of-things teaching hardware practice platform, the temperature acquisition module includes a digital sensor 18B20, a pin 2 of the digital sensor 18B20 is connected to a resistor R1, the resistor R1 is connected to a resistor R2, the resistor R2 is connected to a light emitting diode D1, and the light emitting diode D1 is connected to a pin 1 of the digital sensor 18B 20.
The temperature and humidity sensor module comprises a temperature and humidity sensor DHT11, and a No. 1 pin of the temperature and humidity sensor DHT11 is connected with a resistor R2.
Example 12:
the ultraviolet sensor module comprises a chip U1, a capacitor C1 is connected between a pin No. 1 and a pin No. 2 of the chip U1, a pin No. 5 of the chip U1 is connected with a capacitor C3, the capacitor C3 is connected with a capacitor C2, the capacitor C2 is connected with a pin No. 3 of the chip U2, and the capacitor C2 is connected with a pin No. 1 of the port J1.
Example 13:
the building block type modular internet of things teaching hardware practice platform of the embodiment comprises a power socket PWR2.5, the power socket PWR2.5 is connected with a port J1, the port J1 is connected with a fuse F1, the fuse F1 is connected with a key S1, the key S1 is connected with a capacitor C1, the capacitor C1 is connected with a capacitor C2, the capacitor C2 is connected with a resistor R1, and the resistor R1 is connected with a light emitting diode LED 1.
Example 14:
the building block type modularized teaching hardware practice platform of the internet of things in the embodiment combines concrete teaching according to professional characteristics of the internet of things, self levels of school students, training targets of school students, requirements of professional training skills and the like, decomposes a hardware development technology of the internet of things into a plurality of knowledge points, corresponds one or more knowledge points to one hardware module, and configures corresponding technical data such as schematic diagrams and examples. Each module is relatively independent, analysis, explanation, application and the like of knowledge points are facilitated, input and output interfaces connected with other modules are configured, and if a system is formed by the modules and other modules, the modules are connected with corresponding contact pins through DuPont wires.
The specific design scheme is as follows:
(1) the hardware design adopts the modularized design, each module is mutually independent, and students can clearly see the experimental hardware during the experiment.
(2) The module is connected with the module and the STM32 chip by adopting a DuPont head plug with plastic packages at two ends, no metal is exposed, and the short circuit phenomenon cannot occur.
(3) Because the modular design is adopted, each module is independent, more systems can be formed conveniently according to actual requirements, and the system can also be connected with newly developed modules through reserved jacks to form a new system.
(4) The circuit design is mainly faced, has small volume and can complete more functions on a limited circuit board.
(5) By comprehensively considering factors such as functions, price, reliability, physical size and the like, the module can select a self-design and direct purchasing mode.
(6) And a space for storing connecting lines, power lines and the like is reserved at the bottom of the platform box body, so that the platform box body is convenient to manage and store.
(7) The platform is provided with a platform expansion space, and new modules can be added according to the development of the technology.
(8) And the system can be compatible with a 51 single chip microcomputer and an STM32 system.
(9) Due to the adoption of the modularized and cordwood design, the outdated and outdated modules can be updated and replaced at any time according to the development of courses and technologies.
Example 15:
above-mentioned embodiment modular internet of things teaching hardware practice platform of cordwood system, because modular design, every module is independent each other, and each module is not connected before doing experiment or project, and what module just uses Dupont line connection which module need be when using, and the autonomy, the flexibility of improvement platform that so not only can be great not only can improve the quantity of accomplishing the experiment greatly, compare with traditional experiment, practice platform, but also promote student's design, development ability by a wide margin.
For example, a household waterproof and fire safety system is designed, a sensing node design experiment can be realized by using a core board (stm32 development board or STC12C5A60S2 core board), a temperature sensor module, a flame detection module, an MQ-2 sensor module (whether gas and natural gas are leaked or not is collected), a water level sensor module (whether water is leaked or not is collected), a Wifi module can be used as a sensing node design experiment communication module according to actual or teaching requirements, and communication modules such as a ZigBee module and the like can also be used. The specific connection relation can use various schemes according to the course teaching requirements, the following description lists the sensing node design experiment for completing the same family waterproof and fire safety system, and various different schemes can be used according to different design targets and teaching contents.
Example 16:
the building block type modularized Internet of things teaching hardware practice platform described in the above embodiment is connected by modules with 8-bit singlechip 51 series as the core,
a pin P1.1 of the 51 single-chip microcomputer development board module is connected with a pin S of the water level sensor module, a pin P1.2 of the 51 single-chip microcomputer development board module is connected with a pin DQ of the temperature sensor module, a pin P1.3 of the 51 single-chip microcomputer development board module is connected with a pin DO of the flame sensor module, and a pin P1.4 of the 51 single-chip microcomputer development board module is connected with a pin DOUT of the MQ-2 sensor module.
If the perception node uses the Wifi wireless communication technology, serial port communication pins P3.0 and P3.1 of the 51 single chip microcomputer development board module are respectively connected with TXD and RXD of the Wifi wireless communication module, and an EN pin of the Wifi wireless communication module is connected with a P1.5 pin of the 51 single chip microcomputer development board module.
If the sensing node uses the ZigBee wireless communication technology, serial port communication pins P3.0 and P3.1 of the 51 single chip microcomputer development board module are respectively connected with TXD and RXD of the ZigBee wireless communication module, and an REST pin of the ZigBee wireless communication module is connected with a P1.5 pin of the 51 single chip microcomputer development board module.
Example 17:
the building block type modularized Internet of things teaching hardware practice platform of the embodiment is connected by using a high-performance 32-bit singlechip STM32 series as a core module
The PC0 pin of the STM32 development board is connected with the S pin of the water level sensor module, the PA0 pin of the STM32 development board is connected with the DQ pin of the temperature sensor module, the PA1 pin of the STM32 development board is connected with the pin DO of the flame detection module, and the PA2 pin of the STM32 development board is connected with the pin DOUT of the MQ-2 sensor module.
If the experiment of perception node design uses Wifi technology communication, the serial port communication pin PA10, the PA9 of STM32 development board link to each other with TXD, RXD of Wifi wireless communication module respectively, and the EN pin of Wifi wireless communication module connects the PA5 pin of STM32 development board.
If the sensing node design experiment uses ZigBee technology for communication, serial port communication pins PA10 and PA9 of the STM32 development board are respectively connected with TXD and RXD of the ZigBee wireless communication module, and the REST pin of the ZigBee wireless communication module is connected with the PA5 pin of the STM32 development board.
And finally, respectively connecting the power supply with +5V, +3.3V and GND according to different working voltages of the used modules.
As can be seen from the above examples, the modular design of building blocks is used, the use is very flexible, and various functions can be realized by connecting different modules according to different teaching targets. Meanwhile, according to the development of courses and technologies, outdated and outdated modules can be supplemented, updated and replaced continuously at any time. Other experiments and projects which can be realized by the platform can be realized by the method, the principle is the same, and the detailed description is omitted because of the space relation.
Example 18:
the building block type modularized internet of things teaching hardware practice platform of the embodiment uses a building block type modularized design, for a purchasing module, a manufacturer with complete development data is selected, according to the reading of the data, the reference of project design can be realized, and a plurality of experiments can also be realized, for example, a core development board uses a 'Zhongquan big yellow bee STM32(M3 kernel) development board', courseware and video provided by the building block type modularized internet of things teaching hardware practice platform can complete the installation of STM32 software development environment, the installation and the configuration of an ST-LINK simulator, the lighting of a first light emitting diode and program design, buzzer sounding experiment and program design, STM32 independent keyboard and program design, STM32 interruption and external interruption and program design, STM32 timer interruption and program design, STM32 Pulse Width Modulation (PWM) output and program design, STM32 USART working principle and program design, STM32 RS485 communication and program design, STM 3526 USART working principle and STM3 USART working principle and, STM32 printf reorientation principle and program design, STM32 CAN bus working principle and program design, STM32 ADC working principle and program design, STM32 DAC working principle and program design, STM32 DMA working principle and program design, STM32 RTC clock and BKP working principle and program design, STM32 low-power consumption working principle and experiment, STM32 internal temperature sensor working principle and experiment, STM32 independent watchdog working principle and program design, STM32 window watchdog working principle and program design, STM32 FLASH simulation EEPROM experiment, STM32 program encryption, STM32 IIC bus communication principle and program design, CAT24WCxx memory working principle, and experiment, infrared ray transmitting and receiving working principle and program design, DS18B20 temperature sensing working principle and program design, SPI working principle and experiment, LCD color liquid crystal display working principle and experiment, FSM static memory controller FSM and experiment, The method comprises a plurality of experiments such as a touch screen working principle and program design, an SD memory card working principle and experiment, a stepping motor module experiment (28BYJ48), an ultrasonic module ranging experiment, a temperature and humidity sensor module (DHT11), a DS18B20 experiment, a matrix keyboard 4 x 4 principle and experiment and the like.
Due to the space relation, only the functions and experiments completed by the self-designed module are introduced, and the specific implementation can refer to the provided related electronic documents.
Switch, matrix keyboard and LED module:
the P1-P6 wiring port of the module is connected with the GPIO port of the STM32, programming, compiling, debugging and downloading of programs are completed on a PC, and multiple experiments such as switch input, matrix keyboard input, LED output display and the like can be realized.
The nixie tube display module:
the P1-P2 wiring port of the module is connected with the GPIO port of the STM32, programming, debugging, compiling and downloading of programs are completed on a PC, the digital tube working principle experiment can be realized, and the digital tube working principle experiment can also be used as data display of some projects or experiments.
ZigBee wireless communication module:
through the connection of 10 wiring port pins of the module with the GPIO port of the STM32, programming, compiling, debugging and downloading of programs are completed on a PC, so that the working principle of the ZigBee wireless communication module can be realized, and the ZigBee is used for the function design and experiment of the Internet of things sensing node design, the ZigBee networking and the like of the communication module.
A dust sensor module:
and (3) connecting 1-4 pins of a J1 port of the dust sensor module with a power supply of the core board module and GPIO pins respectively, completing programming, compiling, debugging and downloading of a program on a PC (personal computer), and finally realizing the real-time acquisition function of the environment dust amount.
Temperature acquisition module, temperature and humidity sensor module:
the output ports and the power supply pins of the temperature acquisition module and the temperature and humidity sensor module are respectively connected with the power supply and the GPIO pins of the core board module, programming, compiling, debugging and downloading of programs are completed on a PC (personal computer), and finally the real-time acquisition function of the environment temperature and the temperature and humidity is realized.
An ultraviolet sensor module:
the output port and the power supply pin of the ultraviolet sensor module are respectively connected with the power supply of the core board module and the GPIO pin, programming, compiling, debugging and downloading of programs are completed on a PC (personal computer), and finally the real-time acquisition function of the environment ultraviolet intensity is realized.
Power input module
The power supply input is provided for the whole platform, and the overcurrent and short circuit protection functions are prevented through the protective tube.
Power connection extension module:
because the core development board has few power output pins, the power input pins are provided for a more complex system formed by a plurality of modules and the core board.
Example 19:
the modular internet of things teaching hardware practice platform of the embodiment uses modular design, can comprehensively realize factors such as functions, reliability, module price, convenient use and the like for each module according to specific requirements, and adopts two schemes of direct purchasing and autonomous design.
Direct procurement has the following modules:
the STM32 development board module adopts 'Zhongquan bumblebee STM32(M3 kernel) development board'.
The 51-singlechip development board module adopts an STC12C5A60S2 core board STC12 development board double-serial-port 51-singlechip small system board.
The OLED display module adopts an ATK-0.96' OLED module.
The 2-path relay switch module adopts a '2-path contactor switch STM8STM32 development board matching module'.
The stepper motor control module employs " DC 5V 4 phase 5 wire stepper motor + stepper motor driver board 28YBJ-48 deceleration stepper motor".
The acousto-optic sensor module adopts 'the acousto-optic sensor module by the Bochuang company'.
The three-axis acceleration module adopts a 6DOF module of a GY-521 MPU-6050 module three-axis acceleration gyroscope.
The flame detection module adopts a flame sensor module fire source detection module (4-wire system).
The pyroelectric infrared sensor module adopts a 'HC-SR 501 human body infrared induction module pyroelectric infrared sensor'.
The MQ-2 sensor module adopts an MQ-2 smoke sensor module.
The Water level Sensor module adopts a Water level Sensor for detecting the Water depth of the Water drops.
The camera shooting acquisition module adopts a 'v 7670 camera 30 ten thousand pixel band FIFO AL 422B' module.
The WIFI wireless communication module adopts an ESP8266 serial port WIFI wireless module WIFI long-distance wireless module.
The HC-05 serial port Bluetooth module adopts an HC-05 serial port Bluetooth module, which is compatible with 2.54-pitch, +5V and 3.3V and is a master-slave integrated module.
The GSM \ GPRS wireless data transmission module adopts a module of 'GPRS GA6 module A6\ short message \ development board \ GSM \ GPRS \ wireless data transmission super SIM 900A'.
The RFID radio frequency IC card induction module adopts an MFRC-522 RC522 RFID radio frequency IC card induction module.
The WH-NB wireless communication module adopts a Shanghai steady electronic WH-NB wireless communication module.
Example 20:
the modular internet of things teaching hardware platform of the above embodiment,
the combination of specific teaching according to professional characteristics, the self level of school students, the training target of school students and the like, teachers develop the teaching by themselves to complete the construction of practice platforms and design targeted experiments is undoubtedly the best scheme for solving the problems. Its advantages are as follows:
(1) teachers can know course systems, students taught by teachers and culture targets of schools, and the goals are strong
(2) Self-development design, low cost, practical function and strong pertinence
(3) The self-developed design data is complete, is specific to students and is more suitable for teaching
(4) Local development and maintenance are more convenient
(5) As the teacher can know the use and operation habits of students more, the design for preventing the devices from being damaged by misoperation is more specific
(6) Because the platform is a practice capability improving system, normal experiment teaching tasks can be completed, project design development, practical training, graduation design and the like are considered, the function reuse of the platform can be completed, and multiple purposes can be achieved.
(7) The platform is provided with a platform extension space, and new modules can be added according to the development of the technology
(8) The modular and cordwood design is adopted, and outdated modules are updated and replaced at any time according to the development of courses and technologies. Once the platform is designed, the service cycle of the platform is greatly prolonged and the investment of equipment funds is saved through continuous updating.
Claims (6)
1. A modular internet of things teaching hardware practice platform comprises: thing networking practice platform, characterized by: the internet of things practice platform is provided with a core development board, an input/output control module group, a wireless communication module group, an information acquisition module group, a system extension module and other module groups, wherein the core development board consists of an STM32 development board module and a 51 single chip microcomputer development board module, the input/output control module group consists of a switch, a matrix keyboard, an LED module, a nixie tube display module, an OLED display module, a 2-way relay switch module and a stepping motor control module, and the information acquisition module group consists of an acousto-optic sensor module, a dust sensor module, a three-axis acceleration module, a temperature acquisition module, a flame detection module, a pyroelectric infrared sensor module, an MQ-2 sensor module, an ultraviolet sensor module, a water level sensor module, a temperature and humidity sensor module and a camera shooting acquisition module; the wireless communication module group consists of a wifi wireless communication module, an HC-05 serial port Bluetooth module, a ZigBee wireless communication module, a GSM/GPRS wireless data transmission module, an RFID radio frequency IC card induction module and a WH-NB wireless communication module; the other module group comprises a power input module, a power wiring expansion module and a subsequent platform system expansion assembly.
2. The modular internet of things teaching hardware practice platform of claim 1, wherein: the switch, the matrix keyboard and the LED module are connected with the GPIO port of the STM32 through the P1-P6 wiring port of the module, and the compiling, debugging and downloading of programs are completed on a PC, so that a group of experiments of switch input, matrix keyboard input and LED output display are realized;
the nixie tube display module is connected with the GPIO port of the STM32 through the P1-P2 wiring port of the module, completes the writing, debugging, compiling and downloading of programs on a PC (personal computer), realizes nixie tube working principle experiments and is used as a group of project or experimental data display.
3. The modular internet of things teaching hardware practice platform of claim 1, wherein: the ZigBee wireless communication module is connected with a GPIO port of the STM32 through 10 wiring port pins of the ZigBee wireless communication module, programming, compiling, debugging and downloading of programs are completed on a PC, and the working principle of the ZigBee wireless communication module, the design of sensing nodes of the Internet of things with the ZigBee as the communication module, the design of networking functions of the ZigBee and experiments are realized.
4. The modular internet of things teaching hardware practice platform of claim 1, wherein: the dust sensor module is characterized in that 1-4 pins of a J1 port of the dust sensor module are respectively connected with a power supply and GPIO pins of the core board module, and the writing, compiling, debugging and downloading of a program are completed on a PC (personal computer) to realize the real-time collection of the environmental dust amount;
the temperature acquisition module and the temperature and humidity sensor module are characterized in that the output ports and power supply pins of the temperature acquisition module and the temperature and humidity sensor module are respectively connected with the power supply and GPIO pins of the core board module, and the compiling, debugging and downloading of programs are completed on a PC (personal computer), so that the real-time acquisition of the environment temperature and the temperature and humidity is realized;
the ultraviolet sensor module is characterized in that an output port and a power supply pin of the ultraviolet sensor module are respectively connected with a power supply and a GPIO pin of the core board module, programming, compiling, debugging and downloading of programs are completed on a PC (personal computer), and real-time acquisition of the intensity of environmental ultraviolet rays is realized.
5. The modular internet of things teaching hardware practice platform of claim 1, wherein: the power input module provides power input for the whole platform and prevents overcurrent and short circuit protection through a protective tube;
the power supply wiring extension module provides a power supply output pin for the core development board, and a system formed by the modules and the core board provides a power supply input pin.
6. The modular internet of things teaching hardware practice platform of claim 1, wherein: the practical platform of the Internet of things is in modular design, each module is independent, each module is not connected before experiments or projects are carried out, and the modules are connected by DuPont wires when the practical platform of the Internet of things is used.
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