CN210039327U - Internet of things WIFI experimental instrument - Google Patents

Abstract

The utility model discloses a WIFI experimental instrument of the internet of things, which comprises a mainboard, wherein a first application unit, a second application unit, an android mobile phone simulator and a router are arranged on the mainboard; the first application unit comprises a first application unit MCU, a first application unit WIFI module, a first application unit ISP interface and an expansion interface circuit, and the second application unit comprises a second application unit MCU, a second application unit WIFI module, a second application unit ISP interface, a second application unit row lamp and a second application unit keyboard. The utility model has high integration level and convenient use, and is easy to complete WIFI-based application experiments such as WIFI module direct connection, router interconnection, equipment monitoring and the like; the utility model discloses having integrateed android mobile phone simulator, supporting the cell-phone and being connected to WIFI module application system, can simulate the control of cell-phone backstage, reduced student's the degree of difficulty of development android application software, shortened development cycle greatly, enlarged student's application research and development ability, improved learning efficiency.

Description

Internet of things WIFI experimental instrument

Technical Field

The utility model relates to a teaching experiment instrument technical field specifically indicates a thing networking WIFI experiment appearance.

Background

WIFI module interconnection and WIFI-based equipment monitoring technology are widely applied to the fields of smart home, logistics tracking, signal acquisition, remote measurement and control, national defense and military, are important basic technologies of the internet of things, and have important positions in the professions such as the internet of things, computer application and electronics in colleges and universities. The practice of the WIFI application course of the Internet of things is strong, the difficulty is high, only by means of experiments arranged by teaching plans, the improvement on the practical ability, the innovation ability and the comprehensive quality of a student is very limited, and the demand of a user unit is difficult to meet. In order to effectively improve the skill of the student in the WIFI application of the internet of things, the student needs to have better and more convenient experimental equipment to learn and understand the WIFI technology of the internet of things and an application development method. At present, no experimental equipment specially aiming at WIFI module interconnection and WIFI-based equipment monitoring technology exists, and particularly an experimental platform capable of accessing an android mobile phone system exists. In the actual teaching process, the principle experiment platform built by the teacher is used, the structure is complex, the manufacturing difficulty is high, and the principle experiment platform is not beneficial to the students to clearly understand the experiment principle and effectively master the application skill.

A composite Internet of things experimental box appears in the recent market, and aims to enable students to learn the use of various front-end sensing and control modules. The learning and the use of the WIFI module are a small part, and the functions which can be realized are few, and the operation is complex. At present, android mobile phone systems are introduced into many applications of WIFI of the Internet of things, but the mainstream Internet of things experimental platform rarely provides an Internet of things WIFI application platform based on the android mobile phone. If let student oneself establish android mobile phone application platform, the degree of difficulty is very big, can influence student to WIFI module interconnection and WIFI-based equipment monitoring principle's study and understanding.

Disclosure of Invention

The utility model aims to overcome the not enough of prior art, provide a thing networking WIFI experiment appearance to WIFI module interconnection and equipment control to the learner, help the student through practice study, understand thing networking WIFI technique and application development process.

In order to achieve the purpose, the WIFI experimental instrument for the internet of things comprises a mainboard, and is characterized in that a first application unit, a second application unit, an android mobile phone simulator and a router are arranged on the mainboard;

the first application unit comprises a first application unit MCU, a first application unit WIFI module, a first application unit ISP interface and an expansion interface circuit, and the second application unit comprises a second application unit MCU, a second application unit WIFI module, a second application unit ISP interface, a second application unit row lamp and a second application unit keyboard;

the android mobile phone simulator is connected with the router through an RJ45 port, the first application unit WIFI module and the second application unit WIFI module are connected with the router through a wireless network, the first application unit WIFI module, the first application unit ISP interface and the expansion interface circuit are all connected with the first application unit MCU, and the second application unit WIFI module, the second application unit ISP interface, the second application unit bank light and the second application unit keyboard are all connected with the second application unit MCU.

Furthermore, the expansion interface circuit is connected with an expansion board, and the expansion board provides two sets of power supplies of 5V and 3.3V to match the requirements of different expansion modules.

Furthermore, a power protection module is further arranged on the mainboard, and the power protection circuit provides a 5V power supply for the MCU, the WIFI module and the expansion module on the mainboard and performs overcurrent, short circuit and temperature protection.

Furthermore, the first application unit WIFI module is connected with the first application unit MCU through a fixed USART port, and the second application unit WIFI module is connected with the second application unit MCU through a fixed USART port, so that the realization and application of WIFI functions in an experiment are ensured.

Furthermore, the expansion board 7 is provided with an expansion keyboard, an LED row, a stepping motor, an ultrasonic distance measuring sensor and an RFID module board so as to help students to realize various WIFI applications of the internet of things.

Furthermore, the female seat of row of extension interface circuit is the square type and arranges, has both been favorable to extension function board circuit to arrange, is favorable to the fixed of extension function board again.

The utility model has the advantages that:

1) the utility model has high integration level and convenient use, and is easy to complete WIFI-based application experiments such as WIFI module direct connection, router interconnection, equipment monitoring and the like;

2) the utility model integrates an android mobile phone simulator, supports the mobile phone to be connected to a WIFI module application system, can simulate the background monitoring of the mobile phone, reduces the difficulty of developing android application software for students, greatly shortens the development period, enlarges the application and research and development capacity of the students, and improves the learning efficiency;

3) and real the utility model discloses integrated general expansion interface on the mainboard, supported front end perception controlgear's extension. The needs of teaching reform of Internet of things WIFI application are considered in design, project development with different difficulties can be completed, and improvement of practical and creative abilities of students is facilitated.

Drawings

Fig. 1 is the utility model discloses the overall structure schematic diagram of thing networking WIFI experiment appearance.

In the figure: the system comprises a mainboard 1, a first application unit 2, a first application unit MCU2-1, a first application unit WIFI module 2-2, a first application unit ISP interface 2-3, an expansion interface circuit 2-4, a second application unit 3, a second application unit MCU3-1, a second application unit WIFI module 3-2, a second application unit ISP interface 3-3, a second application unit bank light 3-4, a second application unit keyboard 3-5, an android mobile phone simulator 4, a router 5, a power protection module 6, an expansion board 7, an expansion keyboard 7-1, an LED bank light 7-2, a stepping motor 7-3, an ultrasonic ranging sensor 7-4 and an RFID module board 7-5.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

The utility model provides an overall structure overall arrangement of thing networking WIFI experiment appearance is as shown in figure 1, and the experiment appearance comprises mainboard 1 and expansion board 7. The main board 1 is provided with a first application unit 2, a second application unit 3, an android mobile phone simulator 4, a router 5 and a power protection module 6. The android phone simulator 4 is composed of a built-in TQ210 and is connected with a router through an RJ45 port. The android phone simulator 4 displays the signal transmitted by the router 5, or sends a control command to the WIFI front end through the router 5. The first application unit 2 and the second application unit 3 are implemented by an ESP8266 wireless communication module. The router 5 is connected with the first application unit WIFI module 2-2 and the second application unit WIFI module 2-3 through wireless signals.

The first application unit 2 comprises a first application unit MCU2-1, a first application unit WIFI module 2-2, a first application unit ISP interface 2-3 and an expansion interface circuit 2-4, the first application unit WIFI module 2-2, the first application unit ISP interface 2-3 and the expansion interface circuit 2-4 are all connected with the first application unit MCU2-1, the expansion interface circuit 2-4 is connected with an expansion board 7, and the expansion board 7 provides two groups of power supplies of 5V and 3.3V to match the requirements of different expansion modules. The expansion board 7 is provided with an expansion keyboard 7-1(4 x 4 keyboard), an LED bank light 7-2 (8-position LED bank light), a stepping motor 7-3, an ultrasonic distance measuring sensor 7-4 and an RFID module board 7-5, and can be directly connected to a universal expansion interface on the mainboard or connected to the universal expansion interface through a switching board. The female seats of the extension interface circuits 2-4 are arranged in a square shape, which is beneficial to the circuit arrangement of the extension function board and the fixation of the extension function board.

The second application unit 3 comprises a second application unit MCU3-1, a second application unit WIFI module 3-2, a second application unit ISP interface 3-3, a second application unit bank light 3-4(LED bank light assembly) and a second application unit keyboard 3-5(4 x 4 keyboard). And the second application unit WIFI module 3-2, the second application unit ISP interface 3-3, the second application unit bank light 3-4 and the second application unit keyboard 3-5 are all connected with a second application unit MCU 3-1. The first application unit 2 and the second application unit 3 receive control signals and upload collected signals in a WIFI wireless communication mode.

Android mobile phone simulator 4 on mainboard 1 uses day TQ210 of inlaying the company, and independent use 5V1A power supply, router 5 use TL-WDR5630, and independent use 9V power supply supplies power. Other devices and expansion modules on the main board 1 are centrally powered by a power protection module 6 of a 5V/2A power supply capable of providing overcurrent, short circuit and temperature protection.

The MCU of the first application unit 2 and the MCU of the second application unit 3 on the main board 1 adopt STM32F103C8T6, and WIFI communication management and expansion module control can be competent. The ISP interface connects the USART1 port of the MCU for students to download self-programming to the MCU. Both WIFI modules use ESP8266-01S, connected to MCU USART2 interface. The USART2 interface is dedicated to WIFI module connectivity and cannot be used for other purposes.

The utility model provides a mainboard 1 of experiment appearance has integrateed two sets of WIFI application circuit, router 4, power protection module 6 and android mobile phone simulator 4. MCU of two sets of WIFI application circuits is STM32F103C8T6, connects independent ISP download interface through USART1, makes things convenient for the student to download the WIFI measurement and control software of using oneself to develop, connects ESP8266WIFI module through USART 2. A group of WIFI application circuits directly integrates a 4 x 4 keyboard and an LED bank light assembly, connection complexity is reduced, another group of WIFI application circuits integrates a 24-bit universal expansion interface, and all pins of the MCU except for all pins occupying USART2 during downloading are LED out. The power protection module 6 provides a 5V power supply for the MCU, the WIFI module and the expansion module on the mainboard 1, and performs overcurrent, short circuit and temperature protection.

The utility model provides a scheme of multiple thing networking front end module is: a24-bit universal expansion interface is designed on a main board 1, a single-row 2.54mm female seat in a shape of a Chinese character kou is used, the functions of data communication and a fixed module board are considered, and a 4X 4 keyboard, an 8-bit LED row lamp, a stepping motor, an ultrasonic ranging and RFID module board and an empty expansion board which is independently applied by students are configured.

The utility model provides a WIFI observes and controls scheme based on android mobile phone uses is: a TQ210 android mobile phone simulator 4 based on an A8 kernel is configured on the mainboard 1 and is connected to the router 5 through an RJ45 interface. The built-in APP of the android phone simulator 4 can display a signal transmitted by the router 5, or send a control command to the WIFI front end through the router 5.

Finally, it should be noted that the above detailed description is only for illustrating the technical solution of the patent and not for limiting, although the patent is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the patent can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the patent, which should be covered by the claims of the patent.

Claims (6)

1. The utility model provides a thing networking WIFI experiment appearance, includes mainboard (1), its characterized in that: the main board (1) is provided with a first application unit (2), a second application unit (3), an android mobile phone simulator (4) and a router (5);

the first application unit (2) comprises a first application unit MCU (2-1), a first application unit WIFI module (2-2), a first application unit ISP interface (2-3) and an expansion interface circuit (2-4), and the second application unit (3) comprises a second application unit MCU (3-1), a second application unit WIFI module (3-2), a second application unit ISP interface (3-3), a second application unit bank light (3-4) and a second application unit keyboard (3-5);

the android mobile phone simulator (4) is connected with a router (5) through an RJ45 port, the first application unit WIFI module (2-2) and the second application unit WIFI module (3-2) are connected with the router (5) through a wireless network, the first application unit WIFI module (2-2), the first application unit ISP interface (2-3) and the expansion interface circuit (2-4) are all connected with the first application unit MCU (2-1), and the second application unit WIFI module (3-2), the second application unit ISP interface (3-3), the second application unit bank light (3-4) and the second application unit keyboard (3-5) are all connected with the second application unit MCU (3-1).

2. The Internet of things WIFI experimental instrument of claim 1, wherein: the expansion interface circuit (2-4) is connected with an expansion board (7), and the expansion board (7) provides two groups of power supplies of 5V and 3.3V.

3. The Internet of things WIFI experimental instrument of claim 1, wherein: the main board (1) is also provided with a power protection module (6).

4. The Internet of things WIFI experimental instrument of claim 1, wherein: the first application unit WIFI module (2-2) is connected with the first application unit MCU (2-1) through a fixed USART port, and the second application unit WIFI module (3-2) is connected with the second application unit MCU (3-1) through a fixed USART port.

5. The Internet of things WIFI experimental instrument of claim 2, wherein: the expansion board (7) is provided with an expansion keyboard (7-1), an LED bank light (7-2), a stepping motor (7-3), an ultrasonic distance measuring sensor (7-4) and an RFID module board (7-5).

6. The Internet of things WIFI experimental instrument of claim 1, wherein: the female seats of the extension interface circuits (2-4) are arranged in a square shape.

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