KR20170049148A - mechatronics actual training equipment - Google Patents

mechatronics actual training equipment Download PDF

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Publication number
KR20170049148A
KR20170049148A KR1020150150158A KR20150150158A KR20170049148A KR 20170049148 A KR20170049148 A KR 20170049148A KR 1020150150158 A KR1020150150158 A KR 1020150150158A KR 20150150158 A KR20150150158 A KR 20150150158A KR 20170049148 A KR20170049148 A KR 20170049148A
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sensor
sensor signal
signal
breadboard
converter
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KR1020150150158A
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Korean (ko)
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전세형
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주식회사 이노템즈
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Publication of KR20170049148A publication Critical patent/KR20170049148A/en

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
    • G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
    • G09B23/187—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for measuring instruments

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Educational Administration (AREA)
  • Computational Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Electrically Operated Instructional Devices (AREA)

Abstract

The present invention relates to a mechatronics training apparatus capable of learning the characteristics of various mechanical devices, and more particularly, to a mechatronics training apparatus capable of learning characteristics of various mechanical devices, A breadboard including a sensor mounting portion on which sensors for monitoring a driving state of a mechanical device are mounted; (B) display means for displaying analytical information on the sensor signal while being formed on one side of the upper surface of the case; (C) a connection port for connecting the sensor mounted on the breadboard to the control board; And (D) a sensor circuit provided inside the case for receiving a sensor signal sensed by the sensor, a device driving circuit for driving the mechanical device mounted on the device mounting portion, and a sensor mounted on the breadboard And a processor for analyzing the provided sensor signal and outputting the analyzed signal to the display means.

Description

{Mechatronics actual training equipment}

The present invention relates to a mechatronics training apparatus capable of learning characteristics of various mechanical devices.

As technology develops, various devices and systems are being developed. These devices are composed of a plurality of mechanisms, mechanical devices composed of mechanical elements, control means for controlling the driving of the mechanical devices, and electronic devices for signal processing. That is, most devices use mechatronics technology, which is a combination of mechanics and electronics.

Sensors used in these mechatronics technologies collectively refer to devices that directly or indirectly come into contact with an object to be measured to acquire and transmit desired information and detect physical quantities such as heat, light, temperature, pressure, Or to distinguish and measure it, and inform it with a constant signal.

Sensors are used in various fields such as work machines that can measure the values that can not be measured by human senses, and there are many kinds of sensors such as temperature sensor, pressure sensor, flow sensor, magnetic sensor, optical sensor, Sensors, and olfactory sensors.

Such a sensor outputs a sensed signal in an analog form, and a sensor signal analyzing device for analyzing and outputting a sensed signal or providing the sensed signal to an external device is used, and a conventional sensor signal analyzing device is applied to a specific field It is required to provide all of the sensor signal analysis devices related to each field so that the learners or developers who want to acquire the information related to the characteristics of the sensor itself need a lot of cost there is a problem.

In addition, the conventional sensor signal analyzer simply provides analysis information on sensor signals to a learner or a developer who wants to acquire sensor-related information, which limits learning.

There are various practical devices developed to overcome such disadvantages, for example, Patent Documents 1 and 2.

Patent Document 1 discloses a PLC which controls the operation of a mechanical part by application software, a mechanism part that performs a position, speed and torque function by receiving signals from a PLC, a manual pulse generator for detailed position adjustment, a PLC And a display device for outputting data processed by the operating software of the PC main body, wherein the operating system is a microcomputer,

Patent Document 2 discloses a front mechanism unit composed of a plurality of mechanisms for expressing the operation result of a stepping motor and a stepping motor in the form of position movement and a front mechanism unit for graphically displaying the system of the system at the bottom of the front mechanism unit And an operation panel unit provided with a plurality of display devices for displaying the operating state of the mechanism and the like, which are equipped with a plurality of switches for controlling the respective components, and have excellent performance in a compact, high-resolution and high- The present invention relates to a stepping motor practicing apparatus capable of systematically testing and organizing general principles of a driving principle, operation characteristics, and control characteristics of a stepping motor, and capable of on-line control through an interface with a computer.

However, these existing training devices are difficult to analyze and learn the characteristics inherent to the sensor due to the limited field of practical training equipment.

In addition, in recent years, when a user or an administrator has a communication terminal device having various communication interfaces, communication functions with various types of external devices may be required in order to provide convenient and convenient sensor signal analysis.

A sensor signal analyzing apparatus having a learning function developed by the applicant of the present invention was developed to overcome the problems of the prior art. This includes a connection port for various sensors, a sensor signal processing unit corresponding to various sensors connected to connection ports of various sensors, and a display unit for displaying sensor signals processed by the sensor signal processing unit.

This sensor signal analyzer enables the practitioner to learn various sensor signal processing results through one device and to understand various sensor element characteristics.

In addition, the sensor signal analyzing apparatus is provided with a breadboard on one side, and the practitioner implements various sensors on the breadboard and a circuit for the signal processing part of the sensor, and then displays the sensor output characteristics in the implemented circuit The output characteristics of the sensor can be learned.

Further, when the circuit is implemented, it is also possible to learn the output characteristics of the sensor due to variations in the element values by using various variable elements (variable resistors, variable capacitors, etc.) whose element values can be varied.

In addition, the sensor signal analyzing device includes a function of setting an algorithm for processing an output signal from various sensing circuits implemented on a breadboard wirelessly to the control unit, so that various sensing circuits can be learned without limitation.

However, the conventional apparatuses use mechatronics technology as described above. The sensor signal analyzing apparatuses are provided with techniques for learning or practicing electric / electronic elements constituting the apparatus. However, It is difficult to apply to mechatronics technology.

Patent literature 3 is related to a practice device that can be used in mechatronics technology.

Patent Document 3 discloses a communication module including a PCB built-in board, an output port for transmitting a signal to the instrument module, an input port for receiving a signal from the instrument module, a serial port for connecting to the PC body, and a voltage converter. A mechanism module for receiving a signal from the communication module and performing a function; A PC main body having operation software for transmitting and receiving data with the communication module and for processing data transmitted and received by the communication module; And a display device for outputting data processed by the operating software of the PC main body. The voltage converting unit is integrally provided in the PCB built-in board, converts the voltage supplied to the communication module, So as to be driven by the electrical signal, and the voltage output from each instrument module is converted and transmitted to the communication module.

Such a conventional mechatronics apparatus training apparatus is used in a practical industrial field, and since the apparatus module capable of implementing various functions is used as a reduced form, there is an advantage that a trainee can understand the industrial field easily and practice it directly. However, , The equipment is large, and the corresponding devices or components are separately arranged in each module, so that the structure is complicated and it takes a long time to prepare for the training.

1. Korean Patent No. 1400057 2. Korean Utility Model Registration No. 0276753 3. Korean Patent No. 1383205

The present invention has been developed in order to solve the problems of the related art as described above, and it is an object of the present invention to simultaneously analyze the mechanical characteristics of mechatronics equipment in various fields and changes in sensor signals according to changes in mechanical characteristics, And to provide mechatronics training equipment capable of providing information of the present invention.

In addition, the present invention can be achieved by a learner studying a mechatronics device including a mechanical element constituting a mechanical device and various sensors sensing the state of the mechanical element, directly designing a mechanical device, a mechanical device driving circuit, The purpose of this study is to provide mechatronics practice equipment that enables learners to provide learning effects in a form that can be practiced.

It is another object of the present invention to provide a mechatronics training device that can provide sensor signals to different types of external devices through various types of communication interfaces.

Means for solving the above problems and advantages of the present invention will become apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. A breadboard including a sensor mounting portion on which sensors for monitoring the state are mounted; (B) display means for displaying analytical information on the sensor signal while being formed on one side of the upper surface of the case; (C) a connection port for connecting the sensor mounted on the breadboard to the control board; And (D) a sensor circuit provided inside the case for receiving a sensor signal sensed by the sensor, a device driving circuit for driving the mechanical device mounted on the device mounting portion, and a sensor mounted on the breadboard And a processor for analyzing the provided sensor signal and outputting the analyzed signal to the display means.

The processor includes an A / D converter for A / D converting a sensor signal provided from the sensor mounted on the breadboard and outputting the sensor signal, and a controller. The controller includes a plurality of sensor signal input terminals, The sensor signal input terminal is configured to analyze the sensor signal provided in connection with the sensor mounting portion of the breadboard and the A / D converter and output the analyzed signal to the display means.

The control board may further include a plurality of external device connection means for transmitting and receiving sensor signal related information to and from an external device.

The controller may include an FPGA for storing a sensor signal analysis program, and the controller may analyze the sensor signal provided from the sensor mounted on the breadboard or the sensor signal provided from the A / D converter according to an analysis program stored in the FPGA, And a sensor signal analysis program provided from an external device connected to the external device connection means is updated and stored in the FPGA to perform a sensor analysis process according to the updated sensor signal analysis program.

The sensor mounted on the sensor mounting part may be a sensor for sensing a living body related signal including at least one of electrocardiogram, electromyogram, pulse wave and blood pressure, or may be a sensor for detecting a living body related signal including at least one of strain intensity, temperature, And a sensor for sensing a related signal.

The control board includes a plurality of amplifiers for amplifying a sensor signal input from a sensor mounted on the sensor mounting unit and outputting the amplified sensor signal to the A / D converter, and the A / D converter converts the sensor signal And outputs the digital signal to the controller. The controller outputs sensor analysis information on the sensor signal provided from the A / D converter and the breadboard.

And an isolator for directing the amplified sensor signal to an A / D converter between the amplifier and the A / D converter.

A device control unit mounted on the device mounting unit generates and transmits a device control signal to a device driving circuit provided on the control board. The device control unit mounted on the sensor mounting unit is a signal line connected to the sensor and transmitting a sensed signal .

As described above, the mechatronics training apparatus according to the present invention has an effect that the mechatronics specialist can learn the mechanical characteristics of various mechanical devices by a simple operation.

Particularly, the present invention has the effect of providing analytical information on mechatronic mechanical devices in various fields while being composed of a single device and being portable.

In addition, learners of mechatronic mechanical devices can design various device driving circuits on board to experience and learn the driving state of various mechanical devices according to the circuit configuration.

1 is a schematic diagram of a mechatronics training apparatus according to the present invention;
FIG. 2 is an external view of an example of a mechatronics training apparatus according to the present invention.
3 is a block diagram of a control unit constituting a mechatronics exercise apparatus according to the present invention.
FIG. 4 is a plan view showing a mechatronics training apparatus according to the present invention,
5 is a photograph of the control board of the mechatronics exercise equipment according to the present invention
6 is a photograph of an example of a mechatronics exercise apparatus according to the present invention
FIG. 7 is a photograph of a preparation for practicing a stam motor practiced using a mechatronics exercise apparatus according to the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

The mechatronics training apparatus according to the present invention can design a mechatronics apparatus having an electronic apparatus for controlling and monitoring a mechanical apparatus and a mechanical apparatus, and can test a decorated apparatus.

The mechatronics training apparatus according to the present invention includes a breadboard 10, display means 20, a connection port 30, and a control board 40, as shown in FIG. Of course, a power supply means (not shown) for supplying power may be further provided. However, the power supply means may supply power to any one of a plurality of connection holes into which electronic elements provided in the breadboard 10 are plugged Can be installed by inserting the output terminal of the means.

First, the mechatronic exercise equipment of the present invention can be implemented as various devices such as a motor, an electric heater, a blower, and the like as a mechatronic equipment. The sensors include electrocardiogram, electromyogram, pulse wave Sensors for detecting biological signals related to the human body including blood pressure and the like, sensors for detecting mechanical or environmental related signals including strain intensity, temperature, pressure, and motor, or sensor signal simulating devices .

4 and 5, a control board 40 having a circuit is provided on the back surface of the breadboard 10, as shown in FIG. 4 and FIG. have.

A circuit constituted on the control board 40 is connected to a signal line (not shown) drawn from a mechanical device and sensors, and a signal provided from the signal line is transmitted to the processor 43 provided on the control board 40 via the circuit.

As shown in FIGS. 2 and 6, the breadboard 10 is installed to be exposed to one side of the upper surface of the case.

When the user intends to practice driving the mechatronics device by using the breadboard 10 by installing the breadboard 10 such that the breadboard 10 is exposed to the outside of the case, 100, the mechatronics device is also connected to the connecting holes formed on the breadboard 100 after covering the power supply lines of the mechatronics device, and FIG. 6 As shown in the figure, a signal line is connected between the connection port 30 and the breadboard 100 to transmit a signal.

The connection port 30 is a means for connecting the mechatronic device and sensors connected to the control board 40 through the breadboard 10 as described above and the transmitted signal is transmitted to the processor 43 ).

Signals related to the driving state of the mechatronics device sensed by the sensor mounted on the breadboard 10 are outputted through the display means 20 provided at one side of the case.

The display means 20 is a display panel which displays analytical information obtained by analyzing signals as well as signals detected by sensors mounted on the breadboard 10. For example, the degree to be displayed by the display means 20 may be a graph form, a table form or a text form.

As described above, the mechatronics training apparatus of the present invention includes a control board 940. The control board 40 is installed inside the case of the back surface of the breadboard 10, as shown in FIGS. 4 and 5 A sensor circuit 41 for receiving a sensor signal sensed by a sensor, a device driving circuit 42 for driving a mechatronics device mounted on the device mounting portion, And a processor 43 for analyzing the sensor signal provided from the sensor and outputting it to the display means.

The sensor circuit 41 is a circuit for transmitting a signal received from a sensor mounted on the breadboard 10 to a processor, and may be a noise removing circuit for providing noise or an amplifying circuit to be described later.

The device driving circuit 42 is a circuit for supplying power for driving the mechatronic device. As shown in Fig. 4, the mechatronic device is substantially controlled by a device control device (not shown) detachably installed on the breadboard 10 Is made by the kit 11k, and the device driving circuit 42 serves only to transmit the control signal of this device control kit 11k.

The processor 43 includes an A / D converter 43t for A / D converting a sensor signal provided from the sensor mounted on the breadboard 10, and a controller 43c. The control unit 43c has a plurality of sensor signal input terminals, and the sensor signal input terminal is connected to the sensor mounting unit of the breadboard and the A / D converter, .

The control board 40 may further include a plurality of external device connection means 50 for transmitting / receiving sensor signal related information to / from an external device.

The external device connection means 50 is a means for connecting an external device such as a computer, a communication module can be used, and can be configured with a wireless communication interface module and a wired communication interface module. An example of a preferable external device connection means is a wireless interface module for performing WIFI wireless communication, or a wired interface module including a USB port, an SPI / RS232 port, and a DIO port. The wireless interface module may be configured to include an antenna for wireless signal transmission and reception. The wireless interface module is installed on the control board 40 as shown in FIG. 1, and has a connection terminal installed on a side surface of the case .

3, the processor 43 amplifies the sensor signals inputted from the sensors mounted on the sensor mounting portion 12 of the breadboard 10 and outputs the amplified sensor signals to the A / And the A / D converter 32t converts the sensor signals provided from the amplifiers into digital signals and outputs the digital signals to the controller 43c.

The controller 43c outputs sensor analysis information on the sensor signal provided from the A / D converter and the sensor of the breadboard 10.

The controller 43c configuring the processor 43 includes an FPGA for storing a sensor signal analysis program and outputs a sensor signal provided from the sensor mounted on the breadboard 10 or a sensor signal provided from the A / Analyzing and processing a signal according to an analysis program stored in the FPGA and updating the sensor signal analysis program provided from an external device connected to the external device connection means in the FPGA and performing sensor analysis processing according to the updated sensor signal analysis program As shown in FIG.

The user can directly design an analysis program included in the processor 43, and then apply analytical programming designed by himself / herself to the FPGA to perform analytical programming learning on the mechatronics device to be studied.

As shown in FIG. 3, the processor further includes an isolator 43i between the amplifier and the A / D converter for outputting the amplified sensor signal to the A / D converter.

The isolator 43i outputs the amplified sensor signals provided from the amplifier 43a to the A / D converter 43t. This is to prevent the current flowing into the human body from flowing due to the overcurrent when the sensor is a biological signal detection sensor connected to a human body or the like. In addition, the isolator 43i outputs each sensor signal provided from the amplifier 43a in parallel for each sensor connection port.

As described above, the mechatronic apparatus itself can not be directly coupled to the breadboard, and the sensor can be installed on one side of the mechatronic apparatus to detect the state of the apparatus.

Accordingly, as described above, the device mounting portion 11 of the breadboard 10 generates a device control signal, and the device control kit 11k, which transmits and receives the device control signal to and from the device driving circuit 42 provided on the control board, And a power supply terminal for supplying power for driving the equipment is connected to the connection port 30.

As described above, the mechatronics training apparatus according to the present invention includes the external device connecting means 50, and the external apparatus is connected through the external device connecting means.

As described above, the external device may be a user terminal, an administrator terminal, a management server, or a separate system requiring a corresponding sensor signal, and transmits / receives sensor signal related information through a wireless or wired communication interface .

The external device may be provided with a program for providing a user with a basic tool (TOOL) for designing a control circuit, a sensor-related circuit, and / or an analysis program for controlling the mechatronics equipment, And provides the analysis program to the control unit.

For example, the program tool provided for a user may be a LabVIEW-based program source. LabVIEW is a control instrumentation language developed by National Instruments. It is also called Virtual Instrument, which can be configured to look like a real instrument on a computer. It is also called a text-based programming language such as Basic or C- Is called a graphical programming language because it is programmed to create a diagram in a different way. In the LabVIEW program, the programming sequence follows the flow of data, has various functions to control various devices, and process the data sent from the devices.

In addition, the mechatronics training apparatus according to the present invention may further include voice input / output means including a microphone and a speaker, though not shown, so as to output voice guidance information or status information according to the present invention.

Hereinafter, an example of the exercise using the mechatronics exercise equipment of the present invention will be described.

FIG. 7 shows a configuration for monitoring the driving state of a step motor using a mechatronics training apparatus, wherein the step motor shaft is connected to the motor coupling portion.

As the step motor rotates, the worm gear rotates, and the rotation of the worm gear causes the platen to move back and forth.

Each time the step motor rotates, the pressure plate moves to the pressure sensor side in a predetermined unit length, and the pressure sensor senses the pressure applied by the pressure plate.

The pressure sensor is one type of sensor mounted on the breadboard of the mechatronics exercise equipment of the present invention.

The sensor signal sensed by the pressure sensor is transmitted to the sensor circuit 42 of the control board 40 and the learner can learn the sensing signal processed by the sensor circuit through the display means 20. [ In this example, the learner can learn the characteristics of the step motor (torque converted from pressure).

10: breadboard
11: Device mounting section 12: Sensor mounting section
20: display means
30: connection port
40: control board
41: sensor circuit 42: device driving circuit
43: Processor
50: External device connection means

Claims (8)

(A) is formed on an upper surface of a case, and is configured to be capable of squeezing a circuit by inserting an electronic element. The apparatus includes a device mounting portion 11 on which a mechanical device is mounted, a sensor A breadboard (10) including a mounting portion (12);
(B) display means (20) formed on one side of the upper surface of the case for displaying analysis information on the sensor signal,
(C) a connection port (30) for connecting the sensor mounted on the breadboard to the control board; And
(D) a sensor circuit (41) provided inside the case for receiving a sensor signal sensed by a sensor, a device driving circuit (42) for driving a mechanical device mounted on the device mounting part, And a processor (43) for analyzing a sensor signal provided from a sensor mounted on the sensor and outputting the sensor signal to the display means. The method according to claim 1,
The processor 43 includes an A / D converter 43t for A / D-converting the sensor signal provided from the sensor mounted on the breadboard 10, and a controller 43c.
The controller 43c has a plurality of sensor signal input terminals, and a sensor signal input terminal is connected to the sensor mounting unit of the breadboard and the A / D converter, And outputting the mechatronics data. The method according to claim 1,
Wherein the control board further comprises a plurality of external device connection means (50) for transmitting and receiving sensor signal related information to and from an external device. The method of claim 3,
The controller may include an FPGA for storing a sensor signal analysis program, and the controller may analyze the sensor signal provided from the sensor mounted on the breadboard or the sensor signal provided from the A / D converter according to an analysis program stored in the FPGA, Wherein the controller is configured to update a sensor signal analysis program provided from an external device connected to the external device connection means to update the FPGA and to perform a sensor analysis process according to the updated sensor signal analysis program. . The method according to claim 1,
The sensor mounted on the sensor mounting part may be a sensor for sensing a living body related signal including at least one of electrocardiogram, electromyogram, pulse wave and blood pressure, or may be a sensor for detecting a living body related signal including at least one of strain intensity, temperature, And a sensor for sensing a related signal. The method according to claim 1,
The control board includes a plurality of amplifiers 43a for amplifying a sensor signal input from the sensor mounted on the sensor mounting unit and outputting the amplified sensor signal to the A / D conversion unit,
The A / D converter 32t converts a sensor signal provided from each amplifier into a digital signal and outputs the digital signal to the controller,
Wherein the controller is configured to output sensor analysis information on sensor signals provided from the A / D converter and the breadboard. 6. The method of claim 5,
Further comprising an isolator (43i) for directing the amplified sensor signal to an A / D converter between the amplifier and the A / D converter. The method according to claim 1,
Wherein the device mounting section (11) is a device control kit (11k) for generating and sending device control signals to a device driving circuit (42) provided on the control board.
KR1020150150158A 2015-10-28 2015-10-28 mechatronics actual training equipment KR20170049148A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107967834A (en) * 2018-01-18 2018-04-27 成都启迪微光科技有限公司 A kind of optical, mechanical and electronic integration Practical training equipment
WO2018084335A1 (en) * 2016-11-04 2018-05-11 주식회사 이노템즈 Iot-based integration platform for education

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018084335A1 (en) * 2016-11-04 2018-05-11 주식회사 이노템즈 Iot-based integration platform for education
CN107967834A (en) * 2018-01-18 2018-04-27 成都启迪微光科技有限公司 A kind of optical, mechanical and electronic integration Practical training equipment

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