KR101743454B1 - Learning portable pico projector with the internet of things features - Google Patents

Abstract

A mobile high-definition link (MHL) for interfacing transmission data of a mobile device, and a portable pico projector for learning, which can project objects reflected in a camera in real time, and convert the projected images into a file format. High Definition Multimedia Interface (HDMI) that interfaces with a laptop to simultaneously interface digital video and audio signals with a single cable; A camera input terminal for receiving an image photographed through a camera; Projecting the image interfaced with the MHL and the HDMI through the image projection unit, projecting the image input through the camera input unit onto the screen through the image projection unit, converting the image into a file form, storing the converted image in a storage medium, An image storage and reproduction unit for reproducing an image file stored in a storage medium; And an image projection unit for projecting an image output from the image storage and playback unit onto a screen, thereby realizing a portable portable pico projector.

Description

[0001] The present invention relates to a learning portable pico projector having an Internet function,

The present invention relates to a portable pico projector for learning, to which an Internet of Things (IoT) function is added, and more particularly to a portable pico projector having a TCP / IP Internet function and a Wi-Fi function, To a portable pico projector for learning which is provided with an Internet object function for performing an object internet function and sharing images and data to enhance learning and educational efficiency.

The pico projector is a portable video device that displays various contents on a beam projector screen by connecting with a mobile device such as a smart phone, a tablet PC, and a notebook. It is generally rectangular and has a height of about 4 ~ 6cm. It has a rectangular cube shape that can be placed on the palm of a hand. The market for Pico projectors is growing with the increasing use of video contents through mobile devices and leisure culture such as camping.

Conventional pico projectors are connected to MHL (Mobile High-definition Link) for mobile device interface such as smart phone, and HDMI (High Definition Multimedia), which is an interface for transmitting digital image and sound signals simultaneously with one cable, Interface) to receive the image and to project it.

A conventional technique for a pico projector having such a function is disclosed in the following Patent Document 1: Korean Patent Laid-Open Publication No. 10-2010-0027715 (published on Mar. 11, 2010).

The prior art disclosed in Patent Document 1 includes first to third light sources for emitting first to third lights; An image projection unit for generating an image using the lights emitted from the light sources and projecting the generated image to a screen; A light path portion that selectively transmits or reflects the lights to be emitted toward the image projection portion and leaks a part of the lights; And a virtual keyboard for projecting and displaying a keyboard image provided with one or more keys using light leaked from the optical path unit. The virtual keyboard function is provided to the user using the light source of the pico projector.

Korean Patent Publication No. 10-2010-0027715 (Published Nov. 11, 2010)

However, the conventional pico projectors and the conventional techniques described above merely perform a simple function of projecting images received through the MHL and HDMI interfaces through a beam projector screen, and can not only acquire an external image, convert an acquired image to a specific file, The ability to store on media has the disadvantage of being impossible.

In addition, the above-described conventional technology has a disadvantage in that it is impossible to interwork with a TCP / IP Internet function and a smart device via Wi-Fi, thereby making it impossible to share images and data via the Internet.

Accordingly, the present invention has been proposed in order to overcome the above-described problems of the conventional pico projector and the related art, and it has been proposed to link the smart pico projector with the TCP / IP Internet function and the Wi-Fi function to the existing portable pico projector function The object of the present invention is to provide a portable portable pico projector with an Internet object function for enhancing the efficiency of learning and teaching by sharing the images and data.

Another object of the present invention is to provide a portable portable pico projector having a object Internet function to project objects reflected in a camera through a camera input function in real time and to convert a projected image into a file and store the same on a storage medium will be.

It is still another object of the present invention to provide a portable Internet service which enables a pico projector to function as an access point (AP) by adding a TCP / IP Internet function and a Wi-Fi function to a portable pico projector, And to provide a portable portable pico projector with the added learning function.

Another object of the present invention is to provide a portable pico projector for learning which is equipped with an object internet function for enhancing a variety of learning contents and image activity through real-time projection and storage of camera photographs in individuals and small groups (classrooms and companies) .

In order to accomplish the above object, a portable portable pico projector having an object Internet function according to the present invention is provided with a transfer control protocol / Internet protocol (TCP / IP) for Internet connection; Wi-Fi for connecting with smart devices to share real-time information between business and education attendees; A Mobile High-Definition Link (MHL) / High-Definition Multimedia Interface (HDMI) interface for interfacing transmission data of a mobile device and interfacing with a laptop and a digital media device to simultaneously interface digital video and audio signals with one cable; A camera input terminal for receiving an image photographed through a camera; An image that is interfaced with the TCP / IP, Wi-Fi, MHL / HDMI, and camera input ends is projected on a screen through an image projecting unit and converted into a file form and stored in a storage medium, A main processor for mutually interfacing data input from the TCP / IP, Wi-Fi, and MHL / HDM I to share information in real time; And an image projecting unit for projecting an image output from the main processor onto a screen.

In addition, the portable portable pico projector having the object Internet function according to the present invention further includes a power supply unit for supplying driving power through a built-in battery.

In addition, the portable portable pico projector having the object Internet function according to the present invention further includes a lighting unit performing a lighting function using the power supplied from the power source unit.

The main processor includes a data acquiring unit that acquires data input through the TCP / IP, Wi-Fi, a mobile high-definition link (MHL) / high-definition multimedia interface (HDMI) An information sharing unit for interfacing data acquired by the data acquisition unit to share information; An image reproducing unit for controlling reproduction of the image acquired by the data acquiring unit; And an image storage unit for storing the real-time photographed image input through the camera input end of the image acquired by the data acquisition unit in the form of a file.

The image storage unit includes a parser for parsing streaming image data input through a camera input terminal output from the data obtaining unit. A framer for combining data analyzed by the parser on a frame basis; An image compressing unit for compressing the framed image data in the framer; And a filer for converting the image data compressed by the image compression unit into a file for storage in a storage medium and storing the converted file in a storage medium.

The image compressing unit compresses image data framed using a motion picture expert groups (MPEG) compression standard.

The file generator converts the compressed image data into a JPG file or an M-JPG file.

The image projecting unit may include an optical engine for projecting a reproduced image onto a screen.

The image projection unit may further include a high resolution panel for increasing the resolution of the reproduced image.

According to the present invention, the TCP / IP Internet function and the Wi-Fi function are added to the existing portable type pico projector function and linked with the smart device to perform the object Internet function, so that the pico projector can control the function of the AP In-media center.

In addition, according to the present invention, there is an advantage that a pico projector can share images and data between work and education attendees to enhance learning and education efficiency.

In addition, according to the present invention, there is an advantage that objects reflected on a camera can be projected in real time through a camera input function, and the projected images can be converted and stored in a file form on a storage medium.

Also, according to the present invention, it is advantageous to increase various learning contents and video activities through a real-time projection and storage function of camera shots in individuals and small groups (classrooms and companies).

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a portable portable pico projector to which an object Internet function is added according to a preferred embodiment of the present invention;
FIG. 2 is a block diagram of an embodiment of the main processor of FIG. 1;
FIG. 3 is a block diagram of an embodiment of the image storage unit of FIG. 2. FIG.

Hereinafter, a portable portable pico projector to which an object Internet function according to a preferred embodiment of the present invention is attached will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a portable portable pico projector with a built-in Internet function according to a preferred embodiment of the present invention and a configuration of connected devices. FIG.

The portable portable pico projector and the connected peripheral device to which the object Internet function is added according to the preferred embodiment of the present invention include a computer 10 including an Internet function, a camera 20 for real-time image capturing, a mobile function A screen 30 for displaying images, a pico projector 100, and the like.

The pico projector 100 includes a transfer control protocol / Internet protocol (TCP / IP) 101, a Wi-Fi 102, a camera input 103, a high definition multimedia interface (MHL) An image projection unit 104, a power source unit 109, a main processor 105, an SD card 106, a USB terminal 107, and an illumination unit 110. [

The Wi-Fi 102 is connected to the smart device 30, and is connected to the Internet 10 via the Internet, Implement real-time information sharing among attendees.

A Mobile High-definition Link (MHL) / High-Definition Multimedia Interface (HDMI) 108 interfaces transmission data of a mobile device and is connected to a laptop and a digital media device, It serves as an interface.

The camera input terminal 103 serves to receive an image photographed through the camera 20. The power supply unit 109 serves to supply driving power through a built-in battery and the lighting unit 110 receives power from the power supply unit 109) to perform a lighting function. Here, the lighting function means a lighting function such as a lantern or a flash.

The SD card 106 is a storage medium for storing images, and the USB terminal 107 plays a role of transmitting a storage file or receiving a file through a USB port.

The image projection unit 104 serves to project an image output from the main processor 105 onto the screen 40. The image projecting unit 104 includes an optical engine for projecting the reproduced image onto the screen 40. [ In addition, the image projecting unit 104 may include a high resolution panel 104a for increasing the resolution of the reproduced image.

The main processor 105 transmits an image interfaced with the TCP / IP 101, the Wi-Fi 102, the MHL / HDMI 108 and the camera input terminal 103 to the screen 40 through the image projecting unit 104, And converts it into a file format and stores it in a storage medium. The image file stored in the storage medium is reproduced and input to the TCP / IP 101, the Wi-Fi 102 and the MHL / HDMI 108 And to share information in real time by interfacing the data.

2, the main processor 105 is connected to the TCP / IP 101, the Wi-Fi 102, the MHL (High-Definition Multimedia Interface) / HDMI (High Definition Multimedia Interface) A data acquisition unit 111 for acquiring data input through a camera input terminal 103; An information sharing unit 114 for mutually interfacing data acquired by the data acquisition unit 111 to share information; An image reproducing unit 112 for controlling the reproduction of the image acquired by the data acquiring unit 111; And an image storage unit 113 for storing the real-time photographed image input through the camera input end 103 of the image acquired by the data acquisition unit 111 in the form of a file.

3, the video storage unit 113 includes a parser for parsing streaming video data input through the camera input terminal 103 output from the data obtaining unit 111, (121); A framer 122 that combines the parsed data from the parser 121 on a frame-by-frame basis; An image compression unit 123 for compressing image data framed by the framer 122; And a filer 124 for converting the image data compressed by the image compressing unit 123 into a file for storage on a storage medium and storing the converted file in a storage medium.

Preferably, the image compressing unit 123 compresses image data framed using a motion picture expert groups (MPEG) compression standard, and the filer 124 compresses the compressed image data into a JPG file or an M-JPG file. File.

The operation of the portable portable pico projector having the object Internet function according to the preferred embodiment of the present invention will be described in detail as follows.

First, when the power switch of the pico projector 100 is turned on, the power source of the battery built in by the power source unit 109 is discharged, and the driving power is supplied. Although only the battery power source built in the power source is mentioned here, the present invention is not limited thereto, and it is also possible to use the commercial AC power source as the power source through the power charging terminal (input terminal). To this end, the power supply unit 109 preferably includes a rectifying circuit and a charging circuit.

When the user turns on the lighting switch to use the pico projector 100 as a lighting device such as a lantern or a flash after the power is supplied, the lighting unit 110 supplies power from the lighting unit 109 To provide illumination. Here, the lighting unit 110 is the same as a flash function in a device such as a smart phone.

On the other hand, after power is supplied, image data transmitted from a device such as a mobile device and a laptop is input to the pico projector 100 through the MHL / HDMI 108.

The main processor 105 of the pico projector 100 processes input image data through a normal image processing technique and then transmits the image data to the image projection unit 104. The image projection unit 104 transmits the processed image data to the screen 40, / RTI > This image projection process is the same as that of a normal pico projector.

The characteristic of the present invention is that a real time image photographed through the camera 20 in the general pico projector as described above is acquired and projected on the screen 40 and stored in a storage medium such as the SD card 106 To the computer 10 connected to the Internet via the TCP / IP 101, to the smart device such as a smart phone via the Wi-Fi 102, to play the file stored in the storage medium, 40).

For example, when an organization such as a school or a company describes a specific object for learning, teaching, lecture, or the like and needs to store an image for explanation, a camera 20 for real-time object shooting is connected to the camera input end 103 . Here, the camera 20 may use an independent camera or a camera implemented in a mobile device such as a smart phone.

The image photographed by the camera 20 is inputted through the camera input terminal 103 and transmitted to the main processor 105. [ The data acquisition unit 111 of the main processor 105 receives the streaming image input through the camera input 103 and transmits it to the image playback unit 112, the information sharing unit 114, and the image storage unit 113). The image reproducing unit 112 processes an image transmitted through a normal image processing technique, and transmits the processed image to the image projecting unit 104 as a reproduced image. The image projecting unit 104 projects an image transmitted to the screen 40 using an internal optical engine. At this time, in the present invention, the resolution of the image can be increased by using the high resolution panel 104a. The resolution indicates how many pixels are formed on each surface of the display device. The resolutions are roughly classified into QVGA (320 × 240), WVGA (800 × 480), QHD (960 × 540), HD (1280 × 720), and Full HD (1920 × 1080). Here, the present invention implements HD resolution through the high resolution panel 104a.

Next, the image storage unit 113 stores the image data acquired through the camera 20 into a file format suitable for the storage medium and stores the image data in the storage medium.

For example, as shown in FIG. 3, a parser 121 parses image data of a streaming type input through the camera input terminal 103. That is, the relationship between the constituent parts of the input image data is identified using a program such as a classification analysis program, and at the same time, the meaning of the inquiry is analyzed.

The framer 122 then combines the parsed data from the parser 121 on a frame-by-frame basis. That is, the moving picture data is processed by a still picture (frame) unit operation. It is also possible to take a series of multi-frame pictures with a digital camera and save them as a single JPG file so that each frame can be quickly and continuously reproduced so that it looks like a mini-movie.

The image data processed in units of frames is compressed through a standard compression technique such as MPEG in the image compression unit 123. [ That is, the large-capacity video data is reduced to predetermined data. The image compression method is distinguished by lossy compression and lossless compression depending on whether or not all information of the original image is retained in restoration after image compression. Lossless compression is a compression method in which an image reconstructed from a compressed image is perfectly matched with an original image by completely performing coding and decoding of the image. Lossy compression enhances the compression ratio by eliminating redundant or relatively less important information in the image Compression method.

The compressed image data is transferred to a filer 124, and the filer 124 converts the compressed image data into a file for storage on a storage medium and stores the converted file in a storage medium. Here, the filer 124 preferably converts the compressed image data into a JPG file or an M-JPG file. The converted image file is stored in the storage medium which is stored in the SD card 106 or connected via the USB terminal 107. [

According to another aspect of the present invention, an image file stored in the storage medium can be reproduced and projected onto the screen. For example, an image file inputted through the USB terminal 107 or an image file transmitted through the SD card 106 is reproduced by the image reproducer 112 and transmitted to the image projecting unit 104. The image projecting unit 104 converts the transferred image into a high-resolution image and projects it on the screen 40. [

In other words, according to the present invention, a terminal for receiving a camera image is added to a general pico projector to receive an image photographed by a camera in real time, processed and projected on a screen, and made into an appropriate image file ≪ / RTI > It is also possible to reproduce the image file stored in the storage medium and project it on the screen.

Thus, when lecturing or teaching at a company or a school, a lecture or an instruction about an object photographed by a camera in real time can be conveniently made to a plurality of screens through a screen, and real time image data May be stored in a storage medium. If it is transmitted over a communication medium to a remote location, remote lectures and education can be conveniently performed.

According to another aspect of the present invention, a pico projector is provided with a TCP / IP function and a Wi-Fi function to perform an Internet (IoT) function so that it can be connected to various smart devices, Real-time information sharing among attendees.

For example, the portable pico projector 100 transmits images and data of the smart device 30 carried by a specific user to other users via the Internet, transmits images and data transmitted through the Internet to the smart device, The information will be shared in real time during training.

That is, the image and data output from the smart device 30 in the short-range wireless communication are received by the pico projector 100 via the Wi-Fi 102. The main processor 105 of the pico projector 100 reproduces an image received through the image reproducing unit 112 and projects the image on the screen 40 through the image projecting unit 104. [ At the same time, it is made into a stored image through the image storage unit 113 and stored in the SD card 106 as a storage medium or transferred to a device connected via the USB terminal 107 and stored. And may transmit images and data to a device (for example, a computer) 10 connected to the Internet via the TCP / IP 101. [

In addition, images and data output from a device such as the computer 10 connected to the Internet are received by the pico projector 100 via the TCP / IP 101. [ The main processor 105 of the pico projector 100 reproduces an image received through the image reproducing unit 112 and projects the image on the screen 40 through the image projecting unit 104. [ At the same time, it is made into a stored image through the image storage unit 113 and stored in the SD card 106 as a storage medium or transferred to a device connected via the USB terminal 107 and stored. And transmits the image and data to the smart device 30 connected via the Wi-Fi 102 in the short-range wireless communication protocol.

Here, the portable pico projector 100 serves as a data relay such as an access point (AP). This makes it possible to carry out functions of Internet based objects, store live data, and realize real-time information sharing between business and education attendees.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

The present invention relates to an information sharing technology based on object Internet (IoT) through a TCP / IP function and a Wi-Fi function by projecting an image photographed in real time via a camera through a portable pico projector, .

10: Computer
20: Camera
30: Smart devices
40: Screen
100: Pico projector
101: TCP / IP
102: Wi-Fi
103: Camera input
104:
105: main processor
106: SD card
107: USB terminal
108: MHL / HDMI
109:
110:

Claims (9)

As a learning portable pico projector with the Internet (IoT) function,
TCP / IP (Internet Protocol) for Internet connection;
Wi-Fi for connecting with smart devices to share real-time information between business and education attendees;
A Mobile High-Definition Link (MHL) / High-Definition Multimedia Interface (HDMI) interface for interfacing transmission data of a mobile device and interfacing with a laptop and a digital media device to simultaneously interface digital video and audio signals with one cable;
A camera input terminal for receiving an image photographed through a camera;
An image that is interfaced with the TCP / IP, Wi-Fi, MHL / HDMI, and camera input ends is projected on a screen through an image projecting unit and converted into a file form and stored in a storage medium, A main processor for projecting data on the screen through the image projecting unit and for sharing data in real time by interfacing data input from the TCP / IP, Wi-Fi and MHL / HDM I; And
And an image projection unit for projecting an image output from the main processor onto a screen,
The main processor includes a data acquiring unit for acquiring data input through the TCP / IP, Wi-Fi, a mobile high-definition link (MHL) / high-definition multimedia interface (HDMI) An image reproducing unit for controlling reproduction of the image acquired by the data acquiring unit; And an image storage unit for storing the real-time photographed moving image inputted through a camera input end of the image obtained by the data obtaining unit in a file form and storing the file.
The power supply unit according to claim 1, wherein the power supply unit supplies power for driving through the built-in battery. And a lighting unit for performing a lighting function using power supplied from the power supply unit.
delete The portable pico projector according to claim 1, wherein the main processor further comprises an information sharing unit for interfacing the data acquired by the data acquisition unit to connected devices to share information in real time.
The image storage unit may include a parser for parsing streaming image data input through a camera input terminal output from the data obtaining unit; A framer for combining data analyzed by the parser on a frame basis; An image compressing unit for compressing the framed image data in the framer; And a filer for converting the image data compressed by the image compression unit into a file for storage in a storage medium and storing the converted file in a storage medium.
The portable portable pico projector according to claim 5, wherein the image compressing unit compresses framed image data using a motion picture expert groups (MPEG) compression standard.
The portable pico projector according to claim 5, wherein the file converter converts the compressed image data into a JPG file or an M-JPG file.
The portable pico projector as claimed in claim 1, wherein the image projecting unit includes an optical engine for projecting a reproduced image onto a screen.
The portable pico projector as claimed in claim 1, wherein the image projecting unit includes a panel having a resolution of 1280 x 720 or more.

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