KR101692766B1 - Embedded development system - Google Patents

Embedded development system Download PDF

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Publication number
KR101692766B1
KR101692766B1 KR1020150139470A KR20150139470A KR101692766B1 KR 101692766 B1 KR101692766 B1 KR 101692766B1 KR 1020150139470 A KR1020150139470 A KR 1020150139470A KR 20150139470 A KR20150139470 A KR 20150139470A KR 101692766 B1 KR101692766 B1 KR 101692766B1
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South Korea
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unit
information
cpu
board unit
port
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KR1020150139470A
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Korean (ko)
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이천호
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젝스컴퍼니 주식회사
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/44—Program or device authentication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
    • G06F21/73—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information by creating or determining hardware identification, e.g. serial numbers

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Storage Device Security (AREA)

Abstract

The present invention relates to an embedded development system, and more particularly, to an embedded development system that includes a board unit that operates based on an Android or Linux operating system; A security unit mounted on the board unit to prevent copying of serial number information used in communication authentication of the board unit; And a solution unit provided so as to be able to program the program in which the board unit is operated, wherein the board unit includes a CPU board unit on which an Android operating system or a Linux operating system is mounted, a Mini-ITX type size, And a carrier board unit which receives information from the CPU board unit and transfers the information to an external device or receives information from the external device and transfers information to the CPU board unit, wherein the CPU board unit includes a substrate unit, A CPU board, a communication card slot, an external storage slot, and a battery slot are formed on an upper surface of the carrier board unit, and the board unit is electrically connected to the carrier board unit A connection member inserted into the CPU port is formed on the bottom surface, and the CPU port is provided in a pair Wherein a virtual straight line connecting the respective center portions facing each other is arranged on the carrier board portion so as to be shifted so as to have a slope with respect to the longitudinal direction of the carrier board portion, And the CPU port is recessed in a rectangular shape from the upper surface of the carrier board portion. A pair of corners facing each other in the longitudinal direction of the rectangle are chamfered, And a first contact portion which is provided as a conductor and is provided along a longitudinal direction of the first accommodation space, wherein the connection member is provided on a lower surface of the substrate portion And a base portion which is protruded in a rectangular shape from the base portion to be inserted into the first accommodation space, Wherein the protrusion is provided with a conductor and is provided along the longitudinal direction of the protrusion so that the protrusion is inserted into the first accommodating space when the protrusion is inserted into the first accommodating space, Wherein the first authentication key information is received from the outside, a storage unit in which the second authentication key information is stored, a memory unit in which the serial number information is stored, The first authentication key information is compared with the second authentication key information, and when the first authentication key information matches the second authentication key information, the serial number information And generating the read information by encrypting the read information to generate the encrypted information, U, and the battery slot includes: a main body installed on an upper surface of the carrier board; an extension extending from an edge of the main body to form a second accommodation space in which the battery is received; And a deaerator installed in the extension portion and moved when the external force is applied in a state where the battery is accommodated in the second accommodation space, thereby allowing the battery to be detached from the second accommodation space.
Thereby, an embedded development system capable of easily developing a security-enhanced Linux or Android embedded system is provided.

Description

Embedded Development System {EMBEDDED DEVELOPMENT SYSTEM}

The present invention relates to an embedded development system, in which a security unit and a board unit, which are installed on a board unit, are operated so that copying of a serial number information used in communication authentication between a board unit and a board unit operating on a Linux or Android operating system is prevented The present invention relates to an embedded development system capable of easily developing a security-enhanced Linux or Android embedded system using a solution section provided so that a program can be programmed.

An embedded board refers to a board used in a system other than a general PC, that is, a system for controlling a factory automation machine, medical equipment, an automobile, and an air conditioner.

These embedded boards are usually prepared by Intel Corporation, which is compatible with Microsoft's Windows operating system.

The above-mentioned x86-series embedded board requires a separate purchase of the Windows operating system, so that there is a problem that the price of the entire apparatus is increased. Therefore, manufacturers of embedded systems are developing and manufacturing various systems using ARM type form factor corresponding to open platform Linux operating system or Android operating system.

The embedded system using the ARM type form factor has a problem of poor security related to communication. However, there is no embedded development system that enhances the communication security described above.

An object of the present invention is to solve the above-described conventional problems, and it is an object of the present invention to provide an information processing apparatus and a method of controlling the same, And an embedded development system capable of easily developing a security-enhanced Linux or Android embedded system by using a solution unit provided for programming a program in which a security unit and a board unit are operated.

This object is achieved according to the present invention by a board unit operating on the basis of an Android or Linux operating system; A security unit mounted on the board unit to prevent copying of serial number information used in communication authentication of the board unit; And a solution unit provided so as to be able to program the program in which the board unit is operated, wherein the board unit includes a CPU board unit on which an Android operating system or a Linux operating system is mounted, a Mini-ITX type size, And a carrier board unit which receives information from the CPU board unit and transfers the information to an external device or receives information from the external device and transfers information to the CPU board unit, wherein the CPU board unit includes a substrate unit, A CPU board, a communication card slot, an external storage slot, and a battery slot are formed on an upper surface of the carrier board unit, and the board unit is electrically connected to the carrier board unit A connection member inserted into the CPU port is formed on the bottom surface, and the CPU port is provided in a pair Wherein a virtual straight line connecting the respective center portions facing each other is arranged on the carrier board portion so as to be shifted so as to have a slope with respect to the longitudinal direction of the carrier board portion, And the CPU port is recessed in a rectangular shape from the upper surface of the carrier board portion. A pair of corners facing each other in the longitudinal direction of the rectangle are chamfered, And a first contact portion which is provided as a conductor and is provided along a longitudinal direction of the first accommodation space, wherein the connection member is provided on a lower surface of the substrate portion And a base portion which is protruded in a rectangular shape from the base portion to be inserted into the first accommodation space, Wherein the protrusion is provided with a conductor and is provided along the longitudinal direction of the protrusion so that the protrusion is inserted into the first accommodating space when the protrusion is inserted into the first accommodating space, Wherein the first authentication key information is received from the outside, a storage unit in which the second authentication key information is stored, a memory unit in which the serial number information is stored, The first authentication key information is compared with the second authentication key information, and when the first authentication key information matches the second authentication key information, the serial number information And generating the read information by encrypting the read information to generate the encrypted information, U, and the battery slot includes: a main body installed on an upper surface of the carrier board; an extension extending from an edge of the main body to form a second accommodation space in which the battery is received; And an unloading unit which is installed in the extension unit and is moved when an external force is applied in a state that the battery is accommodated in the second accommodating space, thereby removing the battery from the second accommodating space.

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Also, the solution unit may be a program supporting a cross platform.

In addition, the carrier board unit may be formed on one or more of a USB port, an HDMI port, a UART port, an Ethernet port, a VGA port, an audio port, a hard disk port, an RS-232C port, and an RS-485C port.

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In addition, the carrier board unit may have a key button on an upper surface thereof so that a signal generated by an external force is transmitted to the CPU board unit.

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According to the present invention, there is provided an embedded development system capable of easily developing a security-enhanced Linux or Android embedded system.

In addition, since the board portion can be directly mounted on the case corresponding to the conventional x86 series Mini-ITX form factor, the manufacturing cost can be effectively reduced in manufacturing the embedded system.

In addition, the user can implement the embedded board of the desired specification only by replacing the CPU board part, and the manufacturing efficiency is improved as the flexibility of product development is ensured.

FIG. 1 is a general configuration diagram of an embedded development system according to an embodiment of the present invention,
FIG. 2 illustrates a signal and an information flow of a security unit of an embedded development system according to an exemplary embodiment of the present invention,
3 is a flowchart illustrating the operation of the security unit of the embedded development system according to an embodiment of the present invention,
5 is a perspective view of a board portion of an embedded development system according to an embodiment of the present invention,
6 is an exploded perspective view of a board portion of an embedded development system according to an embodiment of the present invention,
7 is a plan view of a board portion of an embedded development system according to an embodiment of the present invention,
8 is a side view of a board portion of an embedded development system according to an embodiment of the present invention,
FIG. 9 illustrates an electrical configuration of a board portion of an embedded development system according to an embodiment of the present invention,
10 is a plan view of a CPU board of an embedded development system according to an embodiment of the present invention,
11 is a bottom view of a CPU board of an embedded development system according to an embodiment of the present invention,
12 is an enlarged view of a second contact portion of the embedded development system according to an embodiment of the present invention,
13 is an enlarged view of a first contact portion of an embedded development system according to an embodiment of the present invention,
FIG. 14 is an enlarged view of a battery slot of an embedded development system according to an embodiment of the present invention.

Hereinafter, an embedded development system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram illustrating a signal and an information flow of a security unit of an embedded development system according to an embodiment of the present invention. FIG. 3 is a block diagram of an embedded development system according to an embodiment of the present invention. FIG. 5 is a perspective view of a board of an embedded development system according to an embodiment of the present invention, and FIG. 6 is a diagram illustrating an exemplary embodiment of an embedded development system according to an embodiment of the present invention. 7 is a plan view of a board portion of an embedded development system according to an embodiment of the present invention, FIG. 8 is a side view of a board portion of an embedded development system according to an embodiment of the present invention, and FIG. , FIG. 9 illustrates an electrical configuration of a board portion of an embedded development system according to an embodiment of the present invention, FIG. 10 illustrates an example of an embodiment 11 is a bottom view of a CPU board portion of an embedded development system according to an embodiment of the present invention, and FIG. 12 is a plan view of a CPU board portion of an embedded development system according to the second embodiment of the embedded development system according to an embodiment of the present invention. FIG. 13 is an enlarged view of a first contact portion of the embedded development system according to an embodiment of the present invention. FIG. 14 is an enlarged view of the contact portion of the embedded development system according to an embodiment of the present invention. As shown in Fig.

1 to 14, an embedded development system according to an embodiment of the present invention includes a board unit 110, a security unit 120, and a solution unit 130.

The board unit 110 includes a CPU board unit 111 and a carrier board unit 112, which are operated based on an Android or Linux operating system.

The CPU board unit 111 includes a substrate unit 111a and a CPU 111b on which an Android operating system or a Linux operating system is mounted.

The substrate portion 111a is provided as a PCB (Printed Circuit Board), and is detachably attached to a carrier board portion 112 described later, and a CPU 111b and a security portion 120, which will be described later, are installed on the upper surface.

A pair of connecting members 111c are formed on the lower surface of the base 111a so that the connecting members 111c are respectively inserted into a pair of CPU ports 112n formed on the upper surface of the carrier board 112 , Whereby the substrate portion 111a and the carrier board portion 112 are electrically connected.

The connecting member 111c includes a base portion 111c1, a protrusion 111c2, and a second contact portion 111c3.

The base portion 111c1 is provided on the lower surface of the substrate portion 111a. The projecting portion 111c2 is protruded from the base portion 111c1 and inserted into the first accommodating space formed by the depression 112n1 described later. It is preferable that the projection 111c2 is chamfered so as to be easily inserted into or removed from the first accommodation space and the depression 112n1 is also machined so as to correspond thereto. The second contact portion 111c3 is provided on the protruding portion 111c2 along the longitudinal direction of the protruding portion 111c2 and is provided as a conductor. The second abutting portion 111c3 has a first abutting portion 112n2 provided on the depression 112n1 to be described later when the projecting portion 111c2 is inserted into the first accommodating space formed by the depressed portion 112n1, . By this contact, the CPU 111b and the carrier board unit 112 are electrically connected to exchange information with each other. According to the connecting member 111c including the base portion 111c1 and the protruding portion 111c2 and the second contacting portion 111c3, the CPU board portion 111 can be detachably coupled to the carrier board portion 112 have.

The CPU 111b is provided on the upper surface of the substrate portion 111a and is provided in the ARM type. Here, the ARM type is a CPU 111b type manufactured by ARM Holdings, which is a maker of the UK CPU 111b, and is a CPU 111b type occupying about 95% or more of the processor of the mobile CPU 111b.

The CPU 111b exchanges information with the carrier board unit 112 through the substrate unit 111a to control the external device.

Therefore, according to the CPU board unit 111 including the board unit 111a and the CPU 111b, the user can implement an embedded board of a desired specification only by replacing the CPU board unit 111. [

The carrier board unit 112 is detachably attached to the CPU board unit 111. The carrier board unit 112 receives information from the CPU board unit 111 and transfers the information to an external device or receives information from the external device to receive information from the CPU board unit 111 It is provided in Mini-ITX type size.

The mini-ITX type is available in an area of 17cm x 17cm, making it the most widely used size for small boards of Intel Corporation (x86 series). In recent years, the boards with Android OS have been widely used. However, since the board with the Android operating system is provided in a different area from the size of Intel Corporation, the size of the existing Intel Corporation's small board, that is, the Mini-ITX type board There is a problem that the board on which the Android operating system is installed can not be installed in the case where the " OS "

Therefore, according to the carrier board portion 112 provided in the mini-ITX type size, an embedded board which can be directly mounted on a case corresponding to a conventional mini-ITX form factor of the x86 series is provided.

A CPU port 112n is formed on an upper surface of the carrier board 112. The CPU port 112n is provided in a pair and is opposed to the carrier board 112. An imaginary straight line connecting the center portions of the carrier ports 112n, 112 are inclined with respect to the longitudinal direction of the carrier board portion 112, respectively. The CPU port 112n includes a depression 112n1 and a first contact portion 112n2.

The depressed portion 112n1 is recessed to form the first accommodation space, and is provided on the upper surface of the carrier board portion 112 described above. The protrusion 111c2 of the connecting member 111c is inserted into the first receiving space.

As described above, the depressed portion 112n1 is provided on the carrier board portion 112 such that a virtual straight line connecting the respective central portions has a slope with respect to the longitudinal direction of the carrier board portion 112, 111c2 are inclined so as to correspond to the depressions 112n1 and installed in the CPU board unit 111. [ Therefore, the first contact portion 112n2 provided on the depression 112n1 and the second contact portion 111c3 provided on the projection 111c2 are always in contact with each other at the same position. Accordingly, when the CPU board part 111 and the carrier board part 112 are coupled, an electrical error caused by the first contact part 112n2 and the second contact part 111c3 coming into contact with each other can be prevented .

The first contact portion 112n2 is provided on the surface of the depression 112n1 forming the first accommodation space along the longitudinal direction of the above-described first accommodation space, and is provided as a conductor. The first contact portion 112n2 is in contact with the second contact portion 111c3 provided on the protrusion 111c2 when the protrusion 111c2 of the connection member 111c is inserted into the first accommodation space. Thereby, the CPU 111b and the carrier board unit 112 can be electrically connected.

On the upper surface of the carrier board unit 112, a USB (Universal Serial Bus) port, a High Definition Multimedia Interface (HDMI) port, a Universal Asynchronous Receiver Transmitter (UART) port, an Ethernet port, a VGA An audio port, a hard disk port, a recommended standard-232C port, an RS-485C port, a communication card slot 112j, an external storage slot 112k And a battery slot 112l are formed.

The battery slot 112l is a slot to which a battery for supplying power necessary for setting a basic input output system (BIOS) of the carrier board unit 112 is mounted. The battery slot 112l includes a main body 112l1 and an extension 112l2 And a rejection 11212. [

The main body 1121 is provided on the top surface of the carrier board 112 described above, and an extending portion 11212 described later is extended from the edge.

The extension portion 11212 extends from the edge of the main body 11211 to form a second accommodation space in which the battery is received. It is preferable that the extension portion 11212 is made of an elastic material (synthetic resin or the like) so that the battery can be easily mounted or detached in the second accommodation space.

The denial 112l2 is installed in the above-described extension portion 11212 by moving the battery when the external force is applied in a state in which the battery is accommodated in the above-described second accommodation space, thereby releasing the battery from the second accommodation space. The removal of the battery from the second accommodating space is facilitated by such a denial 112l2.

On the upper surface of the carrier board 112, a key button 112m may be formed so that a signal generated by an external force is transmitted to the CPU board unit 111 described above. These key buttons 112m form an electrical signal by pressing the key button 112m by the user, and the formed electrical signal is transmitted to the CPU 111b. By using the key button 112m, the user can customize the embedded system in various forms.

 Accordingly, according to the board unit 110 including the CPU board unit 111 and the carrier board unit 112, an embedded board that can be directly mounted on a case corresponding to a conventional x86 mini-ITX form factor is provided . Also, an embedded board capable of implementing an embedded board of a desired specification by a user is provided only by replacing the CPU board unit 111. [

The security unit 120 is installed in the board unit 111a of the CPU board unit 111 by preventing copying of the serial number information used in communication authentication of the board unit 110. [ The security unit 120 includes a receiving unit 121, a storage unit 122, a memory unit 123, a reading unit 124, and an encryption unit 125.

The receiving unit 121 receives the first authentication key information from the outside, and is electrically connected to the reading unit 124, which will be described later.

Here, the first authentication key information is information for authenticating the input / output of information such as a serial number, that is, a device serial number, which is a unique number of the board unit 110. [

If there is a read request for a serial number stored in the memory unit 123, the receiving unit 121 requests the first authentication key information. Accordingly, the first authentication key information is transmitted from the receiving unit 121 ).

The storage unit 122 stores the second authentication key information and is electrically connected to the reading unit 124, which will be described later.

Here, the second authentication key information is information for authenticating the first authentication key information, and is reference information for determining whether the first authentication key information received from the receiving unit 121 is normal information. The second authentication key information is stored in the storage unit 122 in advance.

The memory unit 123 stores serial number information, and is provided as a nonvolatile memory in which information is not erased even when power is not supplied, such as an EEPROM (Electrically Erasable Programmable Read-Only Memory).

When the output of the serial number information is requested from the outside, the reading unit 124 compares the first authentication key information with the second authentication key information. If the comparison result indicates that the first authentication key information matches the second authentication key information, Described memory section 123 and the encryption section 125 to be described later by reading the information and generating the read information.

When the reading unit 124 is requested to output the serial number stored in the memory unit 123, the first reading unit 124 receives the first authentication key information through the receiving unit 121. Then, the control unit compares the second authentication key information stored in advance in the storage unit 122 with the first authentication key information, and if the pieces of information coincide with each other, the control unit reads the serial number stored in the memory unit 123. The read serial number is transmitted to the encryption unit 125, which will be described later.

If there is a request for storing the serial number from the outside via the receiving unit 121, the reading unit 124 reads the first authentication key information received through the receiving unit 121 and the second authentication key information stored in the storage unit 122, And stores the serial number input through the receiving unit 121 in the memory unit 123 when the mutual information matches the key information.

The reading unit 124 compares the second authentication key information with the first authentication key information and stores random information in the memory unit 123 when information does not coincide with each other, Thereby preventing duplication.

The encryption unit 125 generates encryption information by encrypting the read information, and then transmits the encryption information to the CPU 111b, thereby being electrically connected to the reading unit 124 described above.

The encryption process is performed through a random number or an encryption algorithm using a real time clock (RTC: a serial number and an encryption function through a MUX).

The CPU 111b receiving the encryption information decrypts the encrypted information and again generates the read information, that is, the serial number. The decrypted serial number is transmitted to the base station and then subjected to an authentication procedure. By the above-described process, base station communication with the communication terminal, that is, the board unit 110, is performed.

According to the security unit 120 including the receiving unit 121, the storing unit 122, the memory unit 123, the reading unit 124, and the encryption unit 125, the security unit 120 and the CPU 111b It is impossible to confirm the original information, that is, the serial number, even if the information transmitted / received from the outside is hacked.

The security unit 120 is preferably implemented as an application specific integrated circuit (ASIC) type memory, that is, a custom-made memory. Since the same memory is difficult to obtain from the market, the customized memory has a very high security because there is little risk of the encryption function being exposed to the outside.

The solution unit 130 is provided to a programming developer so that the program for operating the board unit 110 can be programmed, thereby being installed and operated on a programmable external device, that is, a PC. The program created by the solution unit 130 is installed in a storage area of the board unit 110 to allow the board unit 110 to perform a specific operation.

The solution unit 130 may be a QT program that supports a cross platform.

The QT program is a program that supports all the API (Application Program Interface) required for UI (User Interface) based application development on various platforms. It can be used not only for GUI (Graphical User Interface) ) And a wide range of APIs that can be used in various fields. This QT program provides an easy and intuitive structure library, so using QT program makes it easy to write source code, which can greatly shorten the time required for application development.

Therefore, according to the embedded development system according to an embodiment of the present invention including the board unit 110, the security unit 120, and the solution unit 130, it is possible to easily develop a Linux or Android embedded system with enhanced security An embedded development system is provided.

The scope of the present invention is not limited to the above-described embodiments, but may be embodied in various forms of embodiments within the scope of the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

100: an embedded development system according to an embodiment of the present invention
110: board part 111: CPU board part
111a: substrate portion 111b: CPU
111c: connecting member 111c1:
111c2: projecting portion 111c3: second contact portion
112: Carrier board part 112a: USB port
112b: HDMI port 112c: UART port
112d: Ethernet port 112e: VGA port
112f: audio port 112g: hard disk port
112h: RS-232C port 112i: RS-485C port
112j: Communication card slot 112k: External storage slot
112l: Battery slot 112l1:
112l2: extension part 112l2: denial
112m: Key button 112n: CPU port
112n1: depression portion 112n2: first contact portion
120: security unit 121:
122: storage unit 123: memory unit
124: reading unit 125:
130: Solutions Department
s1: first accommodation space s2: second accommodation space

Claims (12)

A board that operates on the Android or Linux operating system;
A security unit mounted on the board unit to prevent copying of serial number information used in communication authentication of the board unit; And
And a solution unit which is provided for programming a program in which the board unit is operated,
Wherein,
A CPU board unit having an Android operating system or a Linux operating system mounted thereon, a Mini-ITX type size mounted and detachably connected to the CPU board unit, receiving information from the CPU board unit and transferring the information to or from the external device, And a carrier board unit for transferring information to the CPU board unit,
The CPU board unit,
And an ARM type CPU installed on an upper surface of the substrate portion,
Wherein the carrier board portion includes:
A CPU port, a communication card slot, an external storage slot and a battery slot are formed on the upper surface,
The substrate portion includes:
A connection member inserted into the CPU port to be electrically connected to the carrier board unit is formed on a lower surface,
The CPU-
Wherein the carrier board is disposed such that the imaginary straight lines connecting the center portions thereof are shifted to be inclined with respect to the longitudinal direction of the carrier board portion,
The connecting member includes:
And are arranged on the lower surface of the substrate portion so as to be shifted corresponding to the arrangement of the CPU ports,
The CPU-
A recess formed in the upper surface of the carrier board to be recessed in a rectangular shape and having a first accommodation space formed by chamfering a pair of corners facing each other in a longitudinal direction of the rectangle, And a first contact portion provided along a longitudinal direction of the first accommodating space,
The connecting member includes:
A protruding portion protruding in a rectangular shape in the base portion to be inserted into the first accommodating space and chamfered in a pair of corners facing each other in the longitudinal direction of the rectangle among the four corners, And a second contact portion which is provided as a conductor and is provided along the longitudinal direction of the protrusion and contacts the first contact portion when the protrusion is inserted into the first accommodation space,
The security unit includes:
A storage unit for storing second authentication key information; a memory unit for storing the serial number information; a memory unit for storing the serial number information when the serial number information is requested from the outside; 1 read unit for comparing the first authentication key information with the second authentication key information and comparing the first authentication key information with the second authentication key information to generate read information by reading the serial number information; And an encryption unit for encrypting the read information to generate encryption information and then transmitting the encryption information to the CPU,
The battery slot
An extension part extending from the edge of the main body part to form a second accommodation space in which the battery is received; and an extension part provided in the extension part, And removing the battery from the second accommodating space when the external power is applied in the accommodated state. delete delete delete The method according to claim 1,
In the solution section,
Wherein the program is a program that supports a cross platform. The method of claim 5,
Wherein the carrier board portion includes:
Wherein at least one of a USB port, an HDMI port, a UART port, an Ethernet port, a VGA port, an audio port, a hard disk port, an RS-232C port, and an RS-485C port is formed on the upper surface. delete The method of claim 6,
Wherein the carrier board portion includes:
And a key button is formed on an upper surface of the CPU board unit so that a signal generated by an external force is transmitted to the CPU board unit. delete delete delete delete
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR102173535B1 (en) * 2020-06-01 2020-11-03 젝스컴퍼니 주식회사 Embedded board based on android enhenced real time response

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KR20020032256A (en) * 2000-10-26 2002-05-03 윤지녕 Integrated Embedded System and Method for Realizing thereof
KR20090085905A (en) * 2008-02-05 2009-08-10 (주)네오와인 Method and apparatus for preventing reproduction of serial number for mobile communication terminal
KR20150074589A (en) * 2013-12-24 2015-07-02 (주)조슈아텍 Embedded Board for Electronic Device

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Publication number Priority date Publication date Assignee Title
KR20020032256A (en) * 2000-10-26 2002-05-03 윤지녕 Integrated Embedded System and Method for Realizing thereof
KR20090085905A (en) * 2008-02-05 2009-08-10 (주)네오와인 Method and apparatus for preventing reproduction of serial number for mobile communication terminal
KR20150074589A (en) * 2013-12-24 2015-07-02 (주)조슈아텍 Embedded Board for Electronic Device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102173535B1 (en) * 2020-06-01 2020-11-03 젝스컴퍼니 주식회사 Embedded board based on android enhenced real time response

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