WO2022055139A1

WO2022055139A1 - Integrated iot wireless electronic lecture desk with added customer convenience

Info

Publication number: WO2022055139A1
Application number: PCT/KR2021/010648
Authority: WO
Inventors: 박성우
Original assignee: (주)피케이엘앤에스
Priority date: 2020-09-11
Filing date: 2021-08-11
Publication date: 2022-03-17
Also published as: KR102189973B1

Abstract

Disclosed is an integrated IoT wireless electronic lecture desk with added customer convenience. The present embodiment provides the integrated IoT wireless electronic lecture desk with added customer convenience, which: within a smart classroom, integrally controls all electronic devices while wirelessly communicating with peripheral electronic devices present within the classroom; has a sterilization drawer for sterilizing a keyboard and a mouse, including a microphone; wirelessly charges some electronic devices; has an integrated controller for control within an inside slot structure inside a case body; and allows the case body to move.

Description

Integrated IOT wireless electronic classroom with added customer convenience

One embodiment of the present invention relates to an integrated IoT wireless electronic classroom with added customer convenience.

The content described below merely provides background information related to the present embodiment and does not constitute the prior art.

In general, a school table refers to a table on which books, etc. are placed when teachers or instructors educate or give lectures to a large number of trainees in schools, academies, corporations, and the like. School tables are usually made of wood, but in some cases plastic or metal.

The conventional classroom table has only played a role of placing books, etc. for reference by teachers and instructors during class. Recently, in order to increase the learning effect of trainees, the education method using electrical and electronic equipment such as audio, video, and computer has been gradually improved.

In particular, many educational materials and information are digitized, transmitted and received through the Internet, etc., and processed by a computer or laptop computer and used for education. The electronic classroom centrally manages and controls various electrical and electronic educational equipment.

In a conventional lecture or class, it was generally used as a means of conveying certain knowledge to students while taking notes with chalk on a blackboard. In the case of writing using a blackboard and chalk, chalk powder was blown out and a pleasant environment was not created. .

A typical electronic classroom is simply installing or placing various educational equipment such as computers and projections inside or outside the classroom.

Electronic tutoring is a marketing-oriented market centered on procurement and dealers, and there is a problem in post-sales management. Most of the companies occupying the existing market for electronic teaching desks are manufacturing and distributing molds with a considerable amount of money, and even after several years, the improvement of the electronic teaching table case has not been made.

In terms of technology, the electronic teaching desk is not a product that can be conveniently approached to consumers, but only a product in a large size that is not practical. The functional division of the existing electronic teaching desk product has been changing only in appearance for several years without any functional change.

There is a continuous need in the Middle East for the electronic teaching desk, and as the level of the market increases, new functions are continuously required. In countries or markets that are new to electronic teaching desks, low-cost teaching desks are preferred over new functions.

In this embodiment, the electronic classroom in the smart classroom controls all electronic devices in an integrated manner while wirelessly communicating with the surrounding electronic devices in the classroom, and includes a sterilization drawer for sterilizing the keyboard and mouse, including the microphone, and some electronic devices The purpose of this is to provide an integrated IOT wireless electronic classroom with added customer convenience that wirelessly charges the device, embeds an integrated controller for control in the inside slot structure inside the case body, and allows the case body itself to be moved.

According to one aspect of the present embodiment, a support plate having an angle corresponding to a preset inclination; a case body having a structure connected to and supported by the lower end of the support plate; A housing structure for accommodating a microphone and a control means in the case body, a sterilization drawer for sterilizing the microphone and the control means; an inner body having a plurality of inside slot structures inside the case body; a wireless charging unit fastened to one of the inner slots of the inner body and separately connected to the wireless charging pad to charge the device mounted on the wireless charging pad; an integrated controller for control that is fastened to one of the inside slots of the inner body to control electronic devices around it; a door having a structure for opening and closing the plurality of inside slots from the outside; and a moving means provided at the lower end of the case body to move the case body.

As described above, according to this embodiment, the electronic classroom in the smart classroom controls all electronic devices while wirelessly communicating with the surrounding electronic devices in the classroom, and a sterilization drawer for sterilizing the keyboard and mouse including the microphone. It has an effect of having, wirelessly charging some electronic devices, embedding an integrated controller for control in the inside slot structure inside the case body, and allowing the case body itself to be movable.

1a, 1b, 1c, and 1d are diagrams showing the external appearance of the integrated IOT wireless electronic classroom according to the present embodiment.

2a and 2b are diagrams showing the integrated control of peripheral devices of the integrated IOT wireless electronic classroom according to the present embodiment.

3 is a block diagram showing the integrated IOT wireless electronic classroom according to the present embodiment.

4 is a view showing a method of ventilating the integrated IOT wireless electronic classroom according to the present embodiment by monitoring the surrounding environment.

5 is a diagram illustrating a method in which the integrated IOT wireless electronic classroom monitor according to the present embodiment performs an air conditioning operation by monitoring the surrounding environment.

6 is a diagram illustrating a method in which the integrated IOT wireless electronic classroom monitor according to the present embodiment performs an air conditioning operation by monitoring the surrounding environment.

7 is a diagram illustrating a method in which the integrated IOT wireless electronic classroom according to the present embodiment monitors the surrounding environment and adaptively performs the air conditioning operation according to the spatial characteristics.

8 is a diagram illustrating a method in which the integrated IOT wireless electronic classroom monitor according to the present embodiment performs an air conditioning operation by monitoring the surrounding environment.

Hereinafter, this embodiment will be described in detail with reference to the accompanying drawings.

1a, 1b, 1c, and 1d are views showing the external appearance of the integrated IoT wireless electronic classroom according to the present embodiment.

Smart education refers to an intelligent, customized teaching-learning support system to lead changes in the overall education system such as new educational methods, curriculum, evaluation, and teachers required in a knowledge-based society based on the IoT industry. Smart education is developing into a learning form that combines social learning and customized learning centered on people based on the best communication environment.

In order to conduct smart education in the smart classroom, an integrated electronic classroom 100 capable of integrating and controlling various electronic devices disposed in the smart classroom is required. The integrated electronic classroom 100 serves as a comprehensive control device that can control all electronic devices existing in the smart classroom.

In recent years, human life and industrial economy are being damaged due to viral and bacterial infections such as MERS, SARS, and Corona 19. In particular, since quarantine is required in a classroom where a large number of people gather, the integrated electronic classroom 100 according to the present embodiment disinfects and sterilizes educational

equipment including microphones

216 and 218 used by many people.

Because indoor air pollution caused by a large number of people living in a limited indoor space for a long time due to the nature of education poses a health risk, the integrated electronic classroom 100 detects the indoor air condition in real time and then filters it to provide a comfortable environment. The integrated electronic classroom 100 deodorizes odors generated by the

microphones

216 and 218 used by unspecified people.

Smart classroom uses IoT (Internet of Things) to link with advanced IT equipment such as electronic blackboard 256, laptop 266, projector 258, tablet monitor, and personal wireless terminal centered on the integrated electronic classroom 100 do.

The integrated electronic classroom 100 includes an electronic classroom case body 130, an integrated controller 200 for control, a functional (touch, tablet, P-CAP) monitor, an internal speaker 211,

microphones

216, 218, and a sterilization drawer. 140 , including the MINI PC 264 , and serves as an integrated electronic device. The integrated electronic classroom 100 communicates wirelessly without a wired connection with peripheral external devices.

The integrated electronic classroom 100 prevents the spread and infection of the user by disinfecting and removing viruses and bacteria due to the disinfection function of the

microphones

216 and 218, the mouse, and the keyboard 220.

The integrated electronic classroom 100 includes a wireless charging pad 232 . The integrated electronic classroom 100 uses the wireless charging pad 232 to wirelessly charge the user's tablet and mobile phone. The integrated electronic classroom 100 performs WHDI wireless communication control, peripheral external device wireless communication control, and indoor air quality sensing monitoring. The integrated electronic classroom 100 provides a microphone UV disinfection and sterilization function. The integrated electronic classroom 100 provides a microphone deodorization function.

The integrated electronic classroom 100 does not incur component cost and installation cost for connecting to an external speaker by using an integrated speaker. The integrated electronic classroom 100 is equipped with an all-in-one MINI PC, so it is possible to reduce the purchase cost compared to the existing desktop PC. The integrated electronic classroom 100 can minimize bacterial infection of users using the

microphones

216 and 218 and mice by adding an ultraviolet (UV-C) disinfection function.

The integrated electronic classroom 100 provides wirelessly controllable smart education. The integrated electronic classroom 100 is applicable to various convergence IoT systems by applying IoT. The integrated electronic classroom 100 supports home smart IoT, transportation IoT, and smart classroom IoT.

The integrated electronic classroom 100 provides indoor air quality measurement sensing technology and monitoring integrated management. The integrated electronic classroom 100 performs peripheral device operation control through wireless control. The integrated electronic classroom 100 can expand the scope of application to prevent virus and bacterial infection. The integrated electronic classroom 100 wirelessly controls all peripheral devices in the smart classroom using the wireless communication unit 224 .

The integrated electronic classroom 100 provides an electronic classroom with improved user convenience. The integrated electronic classroom 100 includes an internal PC, an external PC wireless video/audio transmission device control controller circuit. The integrated electronic classroom 100 wirelessly controls external devices (electric screens, projectors, lamps). The integrated electronic classroom 100 has a built-in wireless microphone function (hand microphone applied).

The integrated electronic classroom 100 has a built-in audio amplifier output and speaker performance improvement and a high-output speaker 211 for the electronic classroom speaker. The integrated electronic classroom 100 supplies power to the wireless charging pad 232 , and provides a function of wirelessly charging electronic products mounted on the wireless charging pad 232 . The integrated electronic classroom 100 provides a product sterilization function (gooseneck microphone 218, wireless microphone 216, mouse, etc.) for improving the classroom environment.

The integrated electronic classroom 100 includes indoor air quality monitoring (fine dust, C02, temperature, humidity) and display software. The integrated electronic classroom 100 has a structure in the form of an inside slot PC. The integrated electronic classroom 100 provides a microphone deodorization function.

The integrated electronic classroom 100 according to this embodiment has a support plate 110, a support plate cover 120, a fixing bar 122, a locking part 124, a gooseneck microphone hole 126, a first hole 128, and the first 2 holes 129 , a case body 130 , a sterilization drawer 140 , a door 160 , and a moving means 170 . Components included in the integrated electronic classroom 100 are not necessarily limited thereto.

The support plate 110 has an angle corresponding to a preset inclination. The support plate 110 includes a support plate cover 120 , a fixing bar 122 , a guide rail 123 , a locking part 124 , a gooseneck microphone hole 126 , a first hole 128 , and a second hole 129 . include

The support plate cover 120 is formed on the upper side of the support plate 110 to cover the hole. The fixing bar 122 is formed in the form of a bar at the bottom of the support plate cover 120 to fix an object mounted on the support plate cover 120 . The guide rail 123 is formed on one side and the other side of the support plate 110 so that the support plate cover 120 slides along the guide rail 123 in a predetermined direction. The locking part 124 is formed on the upper side of the support plate cover 120 to form a locking device that prevents the support plate cover 120 from sliding.

The gooseneck microphone hole 126 is formed on one side of an area where the support plate cover 120 is not covered among the upper sides of the support plate 110 to fasten the gooseneck microphone 218 . The first hole 128 is formed in an area of the upper side of the support plate 110 except for the support plate cover 120 and the gooseneck microphone hole 126 . The second hole 129 is formed in an area of the upper side of the support plate 110 except for the support plate cover 120 , the gooseneck microphone hole 126 , and the first hole 128 .

The case body 130 has a structure connected to and supported by the lower end of the support plate 110 .

The inner body 150 has an inside slot structure, and a PC is applied to any one of the inside slots, and is implemented in the form of a built-in PC or an external PC in the case body 130 which is an outer case. The inner body 150 has a plurality of inside slot structures inside the case body 130 .

Sterilization drawer 140 includes ultraviolet (UV-C) product sterilization circuitry. The sterilization drawer 140 provides a deodorizing function for the gooseneck microphone 218 , the wireless microphone 216 , the keyboard 219 , the keypad 219 , and the mouse. The sterilization drawer 140 provides a UV disinfection UV sterilization function (sterilization of main items such as a mouse, keyboard, and microphone). The sterilization drawer 140 deodorizes the microphone housed therein.

The sterilization drawer 140 has a structure in which the

microphones

216 and 218 and the control means 219 and 220 are accommodated in the case body 130 . The sterilization drawer 140 sterilizes the

microphones

216 and 218 and the control means 219 and 220 accommodated therein.

The sterilization drawer 140 includes a storage box 238 , an ultraviolet lamp 234 , a sterilization control unit 310 , a deodorization module 236 , and a deodorization control unit 320 .

The storage box 238 has a structure for accommodating the keyboard 220 , the mouse, the keypad 219 , the gooseneck microphone 218 , and the wireless microphone 216 which are control means. The ultraviolet lamp 234 emits ultraviolet (UV) light to the keyboard 220 , the mouse, the keypad 219 , the gooseneck microphone 218 , and the wireless microphone 216 housed in the storage box 238 . The sterilization control unit 310 turns off the UV emission in the state that the holder 238 is opened, and the UV emission in the state that the holder 238 is closed is performed at a preset time period with a preset intensity.

The door 160 has a structure for opening and closing a plurality of inside slots from the outside. The moving means 170 is provided at the lower end of the case body 130 to move the case body 130 . The moving means 170 is preferably implemented with wheels, but is not necessarily limited thereto.

The integrated electronic classroom 100 provides a more smooth lecture environment to the lecturer. The integrated electronic classroom 100 is based on the control of classroom devices using the integrated controller 200 for control (screen, lamp, projector) and the PC environment, and has a structure that allows the lecturer to confirm and present materials through the PC. have

The integrated electronic classroom 100 serves as a comprehensive control device that can control all control devices in the smart classroom. The integrated electronic classroom 100 wirelessly controls the operation (ON/OFF, UP/DOWN, etc.) of surrounding environment devices such as sound, air conditioner/heater, screen, project, etc. for the user to efficiently conduct lectures or presentations.

The integrated electronic classroom 100 provides its own sterilization and disinfection function such as a microphone to solve infection problems of virus bacteria (COVID-19, MERS, etc.) and various diseases. The integrated electronic classroom 100 is an integral part of the PC and can be used immediately by the user without additional work. The integrated electronic classroom 100 can be applied to a low-cost MINI PC having a smaller size and higher performance than a desktop PC.

The integrated electronic classroom 100 maintains a comfortable environment by managing indoor air quality caused by yellow dust, fine dust, high temperature and humidity, carbon dioxide, and the like. The integrated electronic classroom 100 applies a shock-absorbing type of non-reflective tempered glass to the main display 230 to eliminate user inconvenience caused by light reflection. The integrated electronic classroom 100 provides a deodorization function of the

microphones

216 and 218 .

Since the electronic classroom is controlled by connecting video and peripheral devices by wire, it is inconvenient to install and move due to the wires drawn out when installing the product, and there is a cost associated with the installation work.

The integrated electronic classroom 100 according to this embodiment makes all the functions of existing wired products wireless, and additionally includes an additional wireless charging function to prevent infection due to common use of the product. The integrated electronic classroom 100 employs a wireless block of video and audio.

The integrated electronic classroom 100 includes an input unit, an output unit, and an additional device.

The input unit of the integrated electronic classroom 100 includes a keypad for controlling video, audio, and external devices. The input unit of the integrated electronic classroom 100 includes an HDMI terminal of two ports for video and audio input. The input unit of the integrated electronic classroom 100 includes a sensor input unit for sensing the surrounding environment. The sensor input unit includes an ultrafine dust sensor 202 , a carbon dioxide sensor 204 , and a temperature/humidity sensor 206 .

The output unit of the integrated electronic classroom 100 includes a USB wireless video and audio output device. The output unit of the integrated electronic classroom 100 includes a mobile phone wireless charging pad control output unit. The output unit of the integrated electronic classroom 100 includes a built-in monitor image output HDMI OUT 1 port. The output unit of the integrated electronic classroom 100 includes a UART port (ZigBee module applied) for controlling peripheral devices.

The additional device of the integrated electronic classroom 100 includes a wireless receiving device for controlling peripheral devices. The integrated electronic classroom 100 includes a wireless image output USB switch circuit, a 50 watt 2-channel CLASS-D stereo amplifier, and a sensor interface circuit for environmental monitoring.

The wireless image output USB switch circuit of the integrated electronic classroom 100 switches the source by mounting two USB-type wireless image output devices for outputting images of a built-in PC and an external laptop or PC. The wireless image output USB switch circuit of the integrated electronic classroom 100 requires a USB source changeover switch to change the line image source, and is changed to a USB source changeover switch based on the USB hub circuit.

The 50 watt 2-channel CLASS-D stereo amplifier of the integrated electronic classroom 100 is additionally equipped with a separate amplifier if you want a louder volume than the user. The amplifier 210 of the integrated electronic classroom 100 can output a high output without adding a separate amplifier by driving a 50 watt two-channel speaker.

The sensor interface 208 for environmental monitoring of the integrated electronic classroom 100 measures PM2.5 of the laser method using the ultrafine dust sensor 202 . The sensor interface 208 for environmental monitoring of the integrated electronic classroom 100 measures temperature and humidity with high precision of 0-5V analog output using the temperature/humidity sensor 206 . The sensor interface 208 for environmental monitoring of the integrated electronic classroom 100 is a SH-DS product that adopts a state-of-the-art NDIR (Non-dispersive Infrared) method that detects carbon dioxide in the air. Measure environmental data around the user. The integrated electronic classroom 100 displays the measured values on the main display 230 using software.

The integrated electronic classroom 100 is an analog output sensor using the ultrafine dust sensor 202, the carbon dioxide sensor 204, and the temperature/humidity sensor 206. After reading the measured values, the ADC input circuit is configured as an analog output sensor. The measured value is transmitted through the connected PC.

The integrated electronic classroom 100 according to this embodiment includes an integrated controller 200 for control, an ultrafine dust sensor 202, a carbon dioxide sensor 204, a temperature/humidity sensor 206, a sensor interface 208, and an amplifier 210 ), speaker 211, mixer 212, wireless microphone receiver 214, wireless microphone 216, gooseneck microphone 218, keypad 219, keyboard 220, USB switcher 222, wireless communication unit ( 224), a main display 230, a wireless charging pad 232, an ultraviolet lamp 234, a deodorizing module 236, a storage box 238, an HDMI transmitter 252, and an HDMI receiver 254. Components included in the integrated electronic classroom 100 are not necessarily limited thereto.

The integrated controller 200 for control is fastened to one of the inside slots of the inner body 150 to integrally control the surrounding electronic devices. The integrated controller 200 for control monitors the surrounding environment based on the sensing information received from the sensor interface 208 .

The control integrated controller 200 generates a result of checking whether the ultrafine dust concentration received from the ultrafine dust sensor 202 exceeds a preset ultrafine dust threshold. The integrated controller 200 for control generates a result of checking whether the concentration of carbon dioxide received from the carbon dioxide sensor 204 exceeds a preset carbon dioxide threshold. The integrated controller 200 for control generates a result of checking whether the temperature received from the temperature/humidity sensor 206 exceeds a preset temperature threshold. The integrated controller 200 for control generates a result of checking whether the humidity received from the temperature/humidity sensor 206 exceeds a preset humidity threshold.

The control integrated controller 200 checks whether the concentration of ultrafine dust exceeds the preset threshold of ultrafine dust, and as a result of checking whether the concentration of carbon dioxide exceeds the threshold of carbon dioxide, the temperature is set to the threshold of temperature. As a result of checking whether or not it exceeds, the user's available time for activity in the classroom is calculated based on the result of checking whether the humidity exceeds a preset humidity threshold.

The ultrafine dust sensor 202 transmits the sensing result of sensing the ultrafine dust concentration inside the smart classroom to the sensor interface 208 . The carbon dioxide sensor 204 transmits the sensing result of sensing the carbon dioxide concentration inside the smart classroom to the sensor interface 208 . The temperature/humidity sensor 206 transmits the sensing result of sensing the temperature and humidity inside the smart classroom to the sensor interface 208 .

The sensor interface 208 is fastened to the inside slot of one of the inner bodies to sense the ultrafine dust concentration of the ultrafine dust sensor 202, the carbon dioxide sensor 204 that senses the carbon dioxide concentration, and temperature/humidity sensing each in communication with a humidity sensor 206 .

The amplifier 210 outputs audio with high output. The amplifier 210 includes, for example, a 50 watt two-channel Class-D amplifier. The amplifier (AMP) 210 outputs sound in conjunction with the internal speaker 211 , and outputs audio received from the mixer 212 to the internal speaker 211 .

The mixer (Mixer) 212 works with the wireless microphone 216 using the wireless microphone receiver 214 and communicates with the gooseneck microphone 218 .

The USB switcher 222 interworks with the external HDMI transmitter 252 using a USB (Universal Serial Bus), and the HDMI transmitter 252 uses the HDMI receiver 282 to the electronic board 256 and external Signals are transmitted and received from the projector 258 using HDMI. The USB switcher 222 interworks with the external WHDI transmitter 280 using USB, and the WHDI transmitter 280 uses the WHDI receiver 282 to receive an uncompressed image signal from the electronic board 256 and the external projector 258 . send and receive

The USB switcher 222 transmits and receives data by interworking with the external notebook 266 using USB, and transmits and receives data by interworking with a live stream board or a mini PC using USB and HDMI.

The wireless communication unit 224 performs wireless control (electric screen, elevation motor, projector) of peripheral devices. The wireless communication unit 224 interworks with the external electric screen 242 , the external lamp 244 , and the external projector 258 using Zigbee communication.

The main display 230 is formed in a hole in the center of the support plate 110 . The main display 230 is a shock absorber type, and non-reflective tempered glass is applied.

The deodorization module 236 deodorizes the odors of the keyboard 220 , the mouse, the keypad 219 , the gooseneck microphone 218 , and the wireless microphone 216 stored in the storage box 238 .

The deodorization module 236 removes odors or deodorizes by adsorbing deodorizing gas generated from the keyboard 220, mouse, keypad 219, gooseneck microphone 218, and wireless microphone 216 housed in the storage box 238. The gas is chemically reacted to remove the smell, or the deodorant gas is burned to decompose it, or the deodorant gas is decomposed using microorganisms.

3 is a block diagram illustrating an integrated IoT wireless electronic classroom according to the present embodiment.

The integrated electronic classroom 100 uses an electronic classroom WHDI (Wireless Home Digital Interface) wireless communication control method. The integrated electronic classroom 100 controls peripheral external devices such as the projector 258, the electric screen 242, the

microphones

216 and 218, and the speaker 211 through wireless communication. The integrated electronic classroom 100 includes an ultrafine dust sensor 202 , a carbon dioxide sensor 204 , and a temperature/humidity sensor 206 . The integrated electronic classroom 100 checks and adjusts the environment in the classroom by real-time monitoring of the environment in the classroom using the ultrafine dust sensor 202, the carbon dioxide sensor 204, and the temperature/humidity sensor 206.

The integrated controller 200 for control according to this embodiment includes a sterilization control unit 310 , a deodorization control unit 320 , a wireless charging unit 330 , an external control unit 340 , an image transceiver unit 350 , and an environment monitoring unit 360 . include Components included in the integrated controller 200 for control are not necessarily limited thereto.

The integrated electronic classroom 100 inactivates pathogens in the air as a direct approach to prevent the transmission of airborne diseases, and has an antibacterial effect by irradiating ultraviolet rays into the air.

Airborne microbial diseases are one of the major challenges for global public health, and research on UV-based disinfection technology for bacterial-based airborne diseases such as influenza and tuberculosis, which appears in seasonal and epidemic forms, is ongoing. The sterilization control unit 310 in the integrated electronic classroom 100 prevents the spread of bacteria/viruses in the air based on UV rays. The sterilization control unit 310 in the integrated electronic classroom 100 can destroy microbial cell walls such as bacteria, viruses, and fungi by emitting ultraviolet rays (UV) that are 2500 times more powerful than natural sunlight.

The sterilization control unit 310 has a disinfection function for a mouse, a microphone, and the like to prevent virus/bacterial infection. The sterilization control unit 310 sterilizes components constituting the electronic classroom in an environment where people are dense, such as a classroom, and an area with a high probability of infection. The sterilization control unit 310 inside expands the infection control area to enable infection control for the entire classroom.

The sterilization control unit 310 turns off the emission of ultraviolet rays in the state that the holder 238 is opened, and the emission of ultraviolet rays in the state that the holder 238 is closed is performed at a preset time period with a preset intensity.

The deodorization control unit 320 turns off the deodorization function in the state in which the storage box 238 is opened, and performs the deodorization function in a state in which the storage box is closed at a preset time period with a preset intensity.

The wireless charging unit 330 includes a wireless charging circuit that works in conjunction with the wireless charging pad 232 to wirelessly charge an external device. The wireless charging unit 330 provides a wireless charging function for the electronic device using the wireless charging pad 232 . The wireless charging unit 330 is connected to the wireless charging pad 232 separately to charge the device mounted on the wireless charging pad 232 .

The external control unit 340 controls an external device (the electric screen 242, the lamp 244) through wireless communication (Zigbee) using the wireless communication unit 224 . The external control unit 340 provides wireless control of peripheral devices (electric screen, elevation motor, projector).

The external control unit 340 interworks with the external electric screen 242 using Zigbee communication. The external control unit 340 transmits a control command to lower or raise the external electric screen 242. The external control unit 340 interworks with the external lamp 244 using Zigbee communication. The external controller 340 transmits a control command for turning on or off the external lamp 244 . The external control unit 340 interworks with the external projector 258 using Zigbee communication. The external control unit 340 transmits control commands (on, off, play, pause, etc.) to the external projector 258 .

The image transceiver 350 transmits/receives an image to and from a nearby electronic device using WHDI. Wireless Home Digital Interface (WHDI) is a new standard for wireless high-definition video connections. The video transceiver 350 provides a high-quality uncompressed wireless link that supports the same video data transmission rate up to 3 Gbps, including 1080p/60 Hz, in 20/40 MHz channels in the 5 GHz unlicensed band using WHDI.

The image transceiver 350 transmits uncompressed video using WHDI with the same quality as that of the HDMI cable. The image transceiver 350 unifies all cables for system connection except for the power cable by using WHDI.

The image transceiver 350 provides an uncompressed wireless link when high-quality content is transmitted using WHDI, and provides a high-level security and digital content protection function. WHDI jumps over walls at over 100 feet, and latency is less than 1/1000 of a second. WHDI uses HDCP Revision 2.0 to provide superior security and digital content protection solutions. In other words, the WHDI standard implements 1080p/60 Hz HD in vivid colors even at a distance of 100 feet within a walled house, providing stable quality by establishing a wireless network in an environment with multiple rooms.

The image transceiver 350 is applied to many products used at home in the future by using WHDI to provide a variety of wireless environments. For example, a high-definition image being played on a computer is played back on a living room TV in real time based on WHDI.

WHDI is also applied to mobile devices, where the screen of a game running on a tablet is transmitted in real time to a large TV a few meters away. The image transceiver 350 uses the WHDI wireless communication control method to more stably control other peripheral devices such as a projector, an electric screen, a microphone, and a speaker. The image transceiver 350 can more conveniently control various devices using WHDI.

The image transceiver 350 wirelessly transmits uncompressed video to an external device using the WHDI transmitter 280 and the WHDI receiver 282 .

By using WHDI (Wireless Home Digital Interface) to wirelessly transmit and receive uncompressed video, all cables for system connection except for peripheral devices and power cables can be unified.

The environmental monitoring unit 360 includes indoor air quality monitoring (fine dust, C02, temperature, humidity) display software. The environment monitoring unit 360 monitors indoor air quality through a wireless network using a wireless communication technology and a small sensor module using an environment monitoring technology.

The environment monitoring unit 360 measures air quality through one sensor node or a plurality of sensor nodes located in the space, and appropriately maintains indoor air quality based on the measured result.

The environment monitoring unit 360 checks not only the air quality but also various information such as a thermal environment, a light environment, and a noise level by using the environment information. The environment monitoring unit 360 may adjust the scope of the managed space according to the setting of the scope of the environmental monitoring.

The environment monitoring unit 360 provides smart air monitoring by interworking with a smart phone based on a wireless communication technology such as Wi-Fi or Bluetooth. The environment monitoring unit 360 may include a sensor reflecting various elements for measuring air quality using a small gas and chemical detection sensor.

The environment monitoring unit 360 is not simply a tool for education, but serves to monitor and control the environment in the classroom. The environmental monitoring unit 360 includes a sensor capable of detecting ultrafine dust, carbon dioxide, and temperature/humidity in the classroom in the electronic classroom. The environment monitoring unit 360 enables proper maintenance of the classroom environment based on the environment sensing result.

The environmental monitoring unit 360 enables environmental monitoring of the entire school building based on the inside of the classroom and the electronic classrooms installed in each classroom, and enables management and control of the entire school building based on the environmental monitoring result.

The environment monitoring unit 360 generates a result of checking whether the ultrafine dust concentration received from the ultrafine dust sensor 202 exceeds a preset ultrafine dust threshold. The environment monitoring unit 360 generates a result of checking whether the carbon dioxide concentration received from the carbon dioxide sensor 204 exceeds a preset carbon dioxide threshold. The environment monitoring unit 360 generates a result of checking whether the temperature received from the temperature/humidity sensor 206 exceeds a preset temperature threshold. The environment monitoring unit 360 generates a result of checking whether the humidity received from the temperature/humidity sensor 206 exceeds a preset humidity threshold.

The environmental monitoring unit 360 checks whether the ultrafine dust concentration exceeds the preset ultrafine dust threshold, and as a result of checking whether the carbon dioxide concentration exceeds the preset carbon dioxide threshold, the temperature is set to the preset temperature threshold. As a result of checking whether or not it exceeds, the user's available time for activity in the classroom is calculated based on the result of checking whether the humidity exceeds a preset humidity threshold.

As shown in FIG. 4, the integrated electronic classroom 100 collects indoor environment information and outdoor environment information from the indoor environment information collection unit 400 and the outdoor environment information collection unit 405, and air-conditioning based on the collected information. perform the action

Referring to FIG. 4 , the indoor environment information collection unit 400 may be implemented inside a space capable of collecting environmental information in a smart classroom, and the outdoor environment information collection unit 405 may collect outdoor environment information. It can be implemented outside the space. The indoor environment information collection unit 400 and the outdoor environment information collection unit 405 may transmit the indoor environment information and the outdoor environment information to the environment monitoring unit 360 based on wire and/or wireless. The indoor environment information collection unit 400 and the outdoor environment information collection unit 405 may be plural. For example, there may be a plurality of indoor environment information collecting units 400 , and may be located in a plurality of places inside the indoor space to sense the current state and change of indoor air quality in the plurality of indoor spaces.

The environment monitoring unit 360 may collect indoor environment information and outdoor environment information, and determine the operation of the air conditioner based on the indoor environment information and the outdoor environment information. For example, the indoor environment information may include indoor dust information and indoor harmful gas information, and the outdoor environment information may include outdoor dust information and outdoor harmful gas information.

Indoor dust information and indoor harmful gas information may be one example of lower indoor environmental information, and outdoor dust information and outdoor harmful gas information may be one example of lower outdoor environmental information. In the present embodiment, the operation of the air conditioner may be determined based on various other sub-indoor environment information and sub-outdoor environment information.

The environmental monitoring unit 360 sets a first threshold value set for the indoor dust concentration 430 indicated by the indoor dust information and a second threshold value set for the indoor harmful gas concentration 440 indicated by the indoor harmful gas information Based on this, indoor air quality can be judged.

If the current indoor dust concentration 430 exceeds the first threshold and / or the current indoor harmful gas concentration 440 exceeds the second threshold, the environmental monitoring unit 360 determines that indoor air replacement is necessary. can decide

When it is determined that indoor air replacement is necessary, the environment monitoring unit 360 may determine whether to perform the first blowing operation or the second blowing operation based on the outdoor environment information. As described above, the first blowing operation 470 may be an operation of introducing outdoor air into the room, and the second blowing operation 480 may be an operation of discharging indoor air to the outdoors.

The environmental monitoring unit 360 performs a first blowing operation ( 470) or whether to perform the second blowing operation 480 may be determined.

When the current outdoor dust concentration 450 included in the outdoor dust information is less than or equal to the first threshold and the current outdoor harmful gas concentration 460 included in the outdoor harmful gas information is less than or equal to the second threshold, the environmental monitoring unit 360 is The first blowing operation 470 may be performed to introduce outdoor air into the room. That is, since the quality of outdoor air is relatively better than that of indoor air, the environment monitoring unit 360 may perform a first blowing operation 470 to introduce outdoor air into the room.

Conversely, when the current outdoor dust concentration 450 included in the outdoor dust information exceeds the first threshold value or the current outdoor harmful gas concentration 460 included in the outdoor harmful gas information exceeds the second threshold value, the second blower By performing operation 480, an operation of discharging indoor air to the outdoors may be performed. That is, since the quality of the outdoor air is relatively worse than that of the indoor air, the environment monitoring unit 360 may perform the second blowing operation 480 to release the current indoor air and introduce other indoor air into the space.

After starting the first blowing operation 470 and the second blowing operation 480 , the environment monitoring unit 360 may collect indoor environment information and outdoor environment information to adaptively control the blowing operation.

The timing of determining whether to perform the first blowing operation 470 or the second blowing operation 480 based on the above-described determination may be reset, and the blowing operation after the reset is the first blowing operation (reset) , may be expressed in terms of a second blowing operation (reset).

The operation of the air conditioning system after the first blowing operation (reset) shown in FIG. 5 and the operation of the air conditioning system after the second blowing operation (reset) shown in FIG. 6 described below may be performed again after the reset time point. .

The reset time point is set based on a point in time when indoor air quality does not improve despite the operation of the air conditioning system after the first blowing operation (reset) and the operation of the air conditioning system after the second blowing operation (reset) shown in FIG. 6 . can be

The reset time is continuously increased based on the time when the indoor air quality does not improve according to the number of reset repetitions, so that unnecessary power consumption can be prevented from unnecessarily operating the air conditioning system when there is no change in indoor air quality.

As shown in FIG. 5 , the integrated electronic classroom 100 adaptively operates the air conditioning system after starting the first blowing operation (reset). Referring to FIG. 5 , when the first blowing operation (reset) 550 is performed, outdoor air may be introduced, and the environment monitoring unit 360 receives the indoor environment information from the indoor environment information collecting unit, and Changes in environmental information can be judged.

The environmental monitoring unit 360 determines the indoor dust concentration (before performing the first blowing operation) and indoor harmful gas concentration (before performing the first blowing operation) included in the indoor environment information before the first blowing operation (reset) 550 is performed. After performing the first blowing operation (reset) 550 with the indoor dust concentration (after performing the first blowing operation) and indoor harmful gas concentration (after performing the first blowing operation) included in the indoor environment information, the indoor air quality was improved. The degree of improvement can be judged.

The environment monitoring unit 360 may determine the air change during the first threshold time 510 set after the first blowing operation (reset) 550 is performed. The first threshold time 510 is an initial time after the first blowing operation (reset) 550. During the first threshold time 510, the first threshold time 510 continues despite deterioration of indoor air quality within the set first threshold range 515. The blowing operation (reset) 550 may be maintained.

If the indoor air quality deteriorates over the first threshold range 515 during the first threshold time 510 , the first blowing operation (reset) 550 is temporarily stopped, and the second blowing operation 570 is performed. can be performed. The second blowing operation 570 is performed for a second threshold time 720 , and the environment monitoring unit 360 determines the air change for a second threshold time 720 set after the second blowing operation 570 is performed. can do.

The second threshold time 720 is an initial time after the second blowing operation 570, and during the second threshold time 720, the second blowing operation is continuously performed ( 570) can be maintained.

If the indoor air quality deteriorates over the second threshold range 525 during the second threshold time 720 , the second blowing operation 570 is switched back to the first blowing operation 590 , and the first blowing operation Air change during the first threshold time 510 set to 590 may be determined again. In this way, the blowing operation switching repetition (n times) 595 in which the first blowing operation and the second blowing operation are continuously repeated may be performed to select a blowing operation for improving indoor air quality. When the air quality deteriorates without improvement as described above, the first blowing operation and the second blowing operation are repeated for set n times, and the blowing operation may be stopped after n times.

n times may be determined based on the difference between indoor air quality and outdoor air quality (difference between indoor dust concentration and outdoor dust concentration, and difference between indoor harmful gas concentration and outdoor harmful gas concentration). As the difference between indoor air quality and outdoor air quality is relatively small, the size of n may be relatively small, and as the difference between indoor air quality and outdoor air quality is large, the size of n may be relatively large.

Conversely, if there is no deterioration in indoor air quality over the first threshold range 515 for the first threshold time 510 , the first blowing operation 560 may be performed in consideration of the change in indoor air quality. During the first threshold time 510 , when indoor air quality less than the first threshold range 515 deteriorates or improves, when 1) indoor air quality improves, 2) when indoor air quality is maintained, 3) It may include a case where indoor air quality deteriorates within the first threshold range.

1) When indoor air quality is improved, 2) When indoor air quality is maintained, the environment monitoring unit 360 maintains the first blowing operation, but the speed of the first blowing operation may be increased.

When the air quality deteriorates within the first critical range 515, the environmental monitoring unit 360 maintains the first blowing operation 560, but sets an additional third critical time 530 to determine whether the air quality deteriorates. additional judgments may be made. If deterioration occurs within the second threshold range 525 during the third threshold time 530 , the environmental monitoring unit 360 stops the first blowing operation 560 and switches to the second blowing operation 570 . can do. The third critical range 530 may be set to a range smaller than the first critical range 515 so that the second blowing operation 570 is faster than when the air quality does not change.

When deterioration occurs within the second threshold range 525 during the third threshold time 530 , the environment monitoring unit 360 may stop the first blowing operation 560 and switch to the second blowing operation. . In this case, as described above, the switching operation between the first blowing operation and the second blowing operation may be repeatedly performed, and similarly, the switching operation is repeated for a set n times, and the blowing operation may be stopped after n times. .

According to the present embodiment, when the air purifying function is possible in the air conditioner, when there is deterioration of the indoor air quality above the second threshold range 525 during the above-described second threshold time 720 , and during the third threshold time 530 , If deterioration occurs within the 2 threshold range 525 , an air purification function may be performed. As described above, the air purification function may be directly performed, and the purification function may be performed after repeating x times out of n set times. In this case, the value of x may be determined in consideration of the degree of deterioration of air quality.

The integrated electronic classroom 100 adaptively controls the first blowing operation and the second blowing operation when indoor air replacement is required, as shown in FIG. 6 . In particular, after the integrated electronic classroom 100 starts the second blowing operation (reset) in FIG. 6, a method of adaptively operating the air conditioning system is disclosed.

Referring to FIG. 6 , the second blowing operation is an operation of discharging indoor air to the outside, and the air introduced when the indoor air is discharged may be other indoor air.

When there is local air pollution, the second blowing operation may be effective, and when the overall indoor air quality in the room is not good, the second blowing operation may not be effective.

After the second blowing operation (reset) 650 is performed, the environmental monitoring unit 360 may determine a change in air for a set fourth threshold time 610 . The fourth threshold time 610 is an initial time after the second blowing operation (reset) 650, and during the fourth threshold time 610, continues to a second time despite deterioration of indoor air quality within the set third threshold range 630. Blowing operation can be maintained.

The fourth threshold time 610 may be set to be relatively longer than the above-described first threshold time. When there is no inflow of external air, the determination may be made on the change in air quality for a relatively longer period of time for the change in air quality.

If, during the fourth threshold time 610 , there is deterioration of indoor air quality greater than or equal to the third threshold range 630 , the second blowing operation may be temporarily stopped. Unlike the case of FIG. 3 , when the current outdoor air quality is worse than the indoor air quality, the first blowing operation may not be performed. In this case, the environment monitoring unit 360 continuously receives the outdoor environment information, and when the outdoor air quality determined based on the outdoor environment information has a relatively better value than the indoor air quality determined based on the indoor environment information, the first A blowing operation may also be performed.

In addition, the environment monitoring unit 360 may perform a second blowing operation 670 again after the set stop time to re-determine the change in indoor air quality.

Conversely, if there is no deterioration of indoor air quality over the third critical range 630 for the fourth critical time 610, if the indoor air quality within the third critical range 630 deteriorates, if there is no change in indoor air quality, There may be instances where indoor air quality has improved.

When the indoor air quality deteriorates below the third critical range 630 or when the indoor air quality is improved, the second blowing operation 660 may be continuously performed.

When the indoor air quality within the third threshold range 630 is deteriorated, the environmental monitoring unit 360 maintains the second blowing operation 660 , but sets a fifth threshold time 620 to add to whether the air quality deteriorates can make a judgment When deterioration occurs within the fourth threshold range 610 for the fifth threshold time 620 , the environment monitoring unit 360 may stop the second blowing operation 660 .

In this case, similarly, the environment monitoring unit 360 continuously receives the outdoor environment information, and when the outdoor air quality determined based on the outdoor environment information has a relatively better value than the indoor air quality determined based on the indoor environment information, the second 1 Blow operation can be performed. In addition, the environment monitoring unit 360 may perform a second blow operation again after a set stop time to perform a re-judgment on the change in indoor air quality.

7 discloses a method for performing an air conditioning operation in consideration of spatial characteristics by adjusting a critical range and a critical time. Referring to FIG. 7 , the critical range 700 may be adjusted according to the location of the indoor environment information collecting unit, the location of the air conditioning unit, the size of the indoor space, and ventilation performance. As the location of the indoor environment collector and the location of the air conditioner are relatively farther apart, the change to the air may be relatively slow.

The critical range 700 may be set to a relatively large value as the location of the indoor environment collector and the location of the air conditioner are relatively farther apart. The threshold time 720 may be set to a relatively large value as the location of the indoor environment collector and the location of the air conditioner become relatively farther apart. In addition, as the size of the indoor space increases, the change to the air may be relatively slow.

Accordingly, the critical range 700 may be set to a relatively large value as the size of the indoor space increases. The threshold time 720 may be set to a relatively large value as the size of the indoor space increases.

In addition, according to an embodiment of the present invention, the critical time 720 and the critical range 700 may be adaptively adjusted for each space in consideration of a response to an air change. The first critical range, the second critical range, and the first critical time to the third critical time may be determined by looking at the degree of change in indoor air quality when the first blowing operation is performed in a situation where the difference between indoor air quality and outdoor air quality is equal to or greater than a threshold value. .

When the second blowing operation is performed, the third threshold range, the fourth threshold time, and the fifth threshold time may be determined by monitoring the indoor air quality change data and taking the median or average value of the change times into consideration.

As shown in FIG. 8, the integrated electronic classroom 100 performs a blowing operation in consideration of additional temperature information when indoor air replacement is required. Referring to FIG. 8 , indoor environment information may further include indoor temperature information 810 , and outdoor environment information may further include outdoor temperature information 820 .

When the actual blowing operation is in progress, the environmental monitoring unit 360 may adjust the ventilation speed in consideration of the indoor temperature and the outdoor temperature. For example, when the outdoor temperature is low, such as in winter, outdoor air may be introduced due to the blowing operation, thereby reducing heating efficiency.

Accordingly, there is a need for a method for preventing a rapid change in the internal temperature by controlling the speed of the ventilation in consideration of the indoor temperature and the outdoor temperature in the air conditioning system.

When the indoor temperature and the outdoor temperature differ by more than a set threshold, the environmental monitoring unit 360 determines that heating or cooling is being performed indoors, and may adjust the reference of the blow-related determination threshold and/or the speed of the blowing. .

As described above, the environmental monitoring unit 360 may determine that indoor air replacement is necessary when the current indoor dust concentration exceeds the first threshold and/or when the current indoor harmful gas concentration exceeds the second threshold. there is.

The first threshold value and the second threshold value may be adjusted according to a difference between the indoor temperature and the outdoor temperature. That is, when the difference between the indoor temperature and the outdoor temperature is relatively large, the cooling and heating efficiency may be considered by setting the first threshold value and the second threshold value to be relatively large in consideration of the heating and cooling efficiency. When the difference between the indoor temperature and the outdoor temperature is within the threshold temperature range 830 , the first threshold value and the second threshold value may be set as default values, and the difference between the indoor temperature and the outdoor temperature is within the threshold temperature range 830 . ) or more, the first threshold value and the second threshold value may be increased based on a log function. That is, even if the difference between the indoor temperature and the outdoor temperature is large, it is possible to manage indoor air quality through air circulation by setting the first threshold value and the second threshold value to not increase by more than a predetermined level.

In the first graph 850 , an increase in the first threshold value and the second threshold value according to the temperature difference is started.

In addition, according to an embodiment of the present invention, the blowing speed may be determined according to the temperature difference. When the difference between the indoor temperature and the outdoor temperature is within the threshold temperature range 830 , the first blowing operation and the second blowing operation may be performed at the set default blowing speed.

When the difference between the indoor temperature and the outdoor temperature is out of the critical temperature range 830 , the reduction in the blowing speed may be defined based on a log function. That is, the greater the temperature difference, the weaker the blowing speed is set, but the degree of change in the blowing speed is continuously reduced to enable a change in indoor air quality based on the blowing.

The second graph 860 shows the degree of decrease in the blowing speed according to the temperature difference.

When the blowing speed is changed, the above-described first to fifth critical times may be lengthened according to the change in the blowing speed. The first threshold time and the fifth threshold time may be relatively longer as the blowing speed is reduced by a relatively large amount.

The above description is merely illustrative of the technical idea of this embodiment, and various modifications and variations will be possible without departing from the essential characteristics of the present embodiment by those skilled in the art to which this embodiment belongs. Accordingly, the present embodiments are intended to explain rather than limit the technical spirit of the present embodiment, and the scope of the technical spirit of the present embodiment is not limited by these embodiments. The protection scope of this embodiment should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present embodiment.

Claims

a support plate having an angle corresponding to a preset inclination;

a case body having a structure connected to and supported by the lower end of the support plate;

A housing structure for accommodating a microphone and a control means in the case body, a sterilization drawer for sterilizing the microphone and the control means;

an inner body having a plurality of inside slot structures inside the case body;

a wireless charging unit fastened to one of the inner slots of the inner body and separately connected to the wireless charging pad to charge the device mounted on the wireless charging pad;

an integrated controller for control that is fastened to one of the inside slots of the inner body to control electronic devices around it;

a door having a structure for opening and closing the plurality of inside slots from the outside; and

A moving means provided at the bottom of the case body to move the case body

Integrated electronic teaching desk comprising a.
According to claim 1,

The support plate is

a main display formed in a hole in the center of the support plate;

a support plate cover formed on the upper side of the support plate and having a structure in the form of covering the hole;

a fixing bar formed in the form of a bar at the bottom of the support plate cover to fix the object mounted on the support plate cover;

a guide rail for forming guides on one side and the other side of the support plate so that the support plate cover slides along the guide in a predetermined direction;

a locking part formed on the upper side of the support plate cover to form a locking device that prevents the support plate cover from sliding;

a gooseneck microphone hole formed on one side of an area where the support plate cover is not covered among the upper side of the support plate and coupled to the gooseneck microphone;

a first hole formed on an upper side of the support plate except for the support plate cover and the gooseneck microphone hole;

a second hole formed in an area excluding the support plate cover, the gooseneck microphone hole, and the first hole of the upper side of the support plate;

Integrated electronic teaching desk comprising a.
3. The method of claim 2,

The main display is

As a shock absorber type, an integrated electronic classroom, characterized in that non-reflective tempered glass is applied.
4. The method of claim 3,

The sterilization drawer is

a storage box including a keyboard, a mouse, a keypad, a gooseneck microphone, and a wireless microphone as the control means;

The keyboard, the mouse, the keypad, the gooseneck microphone, and a wireless micro ultraviolet (UV) lamp emitting ultraviolet rays (UV) stored in the storage box; and

A sterilization control unit that turns off the ultraviolet rays in a state in which the holder is open, and emits the ultraviolet rays at a preset intensity at a preset time period in a state in which the holder is closed

Integrated electronic teaching table comprising a.
5. The method of claim 4,

The sterilization drawer,

a deodorization module for deodorizing the keyboard, the mouse, the keypad, the gooseneck microphone, and the wireless microphone stored in the storage box; and

A deodorization control unit that turns off the deodorization function in a state in which the holder is opened, and performs the deodorization function in a state in which the holder is closed at a preset time period with a preset intensity

Integrated electronic teaching table, characterized in that it further comprises.