KR100738001B1 - Method for remote control using USB device - Google Patents

Abstract

The present invention connects a USB device for remote control to a USB port of a user computer subjected to remote control to drive a USB device connection confirmation program and a remote control program, and performs password authentication between the USB device and the user computer. After the remote control driver is executed, authentication is performed by comparing the control codes of the remote control program with the remote control request program through the transmission and reception with the administrator computer that performs remote control, and then between the user computer and the administrator computer. After synchronization and online connection, remote control is performed by sending / receiving data between the manager computer and the user computer.When remote control is completed and the USB device is removed, the operation of the remote control program is terminated, Existing remote control program and remote control drive A characterized by the removal of.

Description

Remote control method using USB device {Method for remote control using USB device}

1 is a block diagram showing a USB device having a remote control function according to the present invention.

2 is a schematic structural diagram of a remote control network system according to the present invention;

3 is a flow chart showing a remote control method according to a first embodiment of the present invention.

4 is a flow chart showing a remote control method according to a second embodiment of the present invention.

5 is a flowchart showing a remote control method according to a third embodiment of the present invention.

6 is a flowchart illustrating a remote control method according to a fourth embodiment of the present invention.

7 is a flowchart illustrating a remote control method according to a fifth embodiment of the present invention.

8 is a flowchart illustrating a remote control method according to a sixth embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: USB device 12: USB connector

14; USB controller 16: memory section

18: remote control 20: security processing

22: power processing section 24; Authentication key storage

26: connection processing unit 28: remote control performing unit

30: USB device connection check unit 100: user computer

200: administrator computer

The present invention relates to a remote control method using a USB device, and more particularly, to enable a user-centered remote control by driving a remote control program only when a corresponding USB device is connected to a user computer to be remotely controlled. It is a technology that enables more efficient and safe remote control by dividing user computers into groups so that remote control can be performed by using one USB device for each group.

In general, the remote control system electrically or mechanically controls the remote control object via wired or wireless communication to open and close the power supply, increase or decrease the temperature, or perform other adjustments.

In particular, a remote control system between computers has a feature that operates as a remote control by installing a program that performs each unique function on both a user computer to be remote controlled and an administrator computer that commands remote control. File sharing technology (PS2) between personal computers and file transfer methods (FTP) to support the transmission and reception of files from one computer to another.

However, in the file sharing technology and the file transfer method as described above, a program for file sharing or transmission for remote control is installed in the user computer and the administrator computer, respectively. Therefore, remote control is performed on the user computer and the administrator computer after the remote control is completed. The program you were running will remain.

Accordingly, there is a risk that these remaining programs may be remotely controlled by the administrator computer even after the remote control of the user computer is completed, or a third party may access the user computer by stealing the remote control request program remaining on the administrator computer. There were serious problems, such as being permanent.

In order to solve this problem, conventionally, as disclosed in the prior patent application (application number: 10-2002-0086625), the administrator owns a USB device that stores a program to request remote control and connects to a computer when necessary. By remote control and remote control is completed, the USB device is disconnected from the administrator computer so that the data of the remote control request program for the administrator is not left.

However, the conventional technology for controlling a user computer by installing a USB device in the administrator computer as described above can control the user's computer without regard to the user's intention, and it is difficult for the emergency stop of remote control by the user's request. It was a central remote control method.

Therefore, for user-centered remote control, a user protection method such as pressing the user's consent button when the remote control program installed in the user's computer is operated or allowing the administrator to input a saved password is applied. Doing.

However, in the process of pressing the user consent button as described above, anyone who is not the actual owner of the computer can access the user computer and press the consent button, and the administrator inputs the password once by the administrator. Even if it is carried out, there is a possibility that the password can be memorized, so the user has to change the remote control password on his computer every time, so there is an inconvenience.

An object of the present invention for solving the above problems is to enable a user-friendly remote control by connecting a USB device equipped with all the remote control-related programs to the USB port of the user computer with the user's knowledge.

In addition, when the user attaches or detaches the USB device, the remote control is interrupted at any time and the remote control program residing in the user's computer memory is completely removed. Even if the computer is not booted after the remote control is blocked, unauthorized remote control And to prevent hacking of a third party.

In addition, by dividing the plurality of user computers by groups, by using a single USB device for each group to remotely control a plurality of user computers included in the group to ensure safe remote control management under the approval of the minority officer.

The remote control method using a USB device according to the present invention for achieving the above object is a first process of storing a control code by matching a plurality of user computers subjected to remote control and the administrator computer performing the remote control in advance; A second process of determining a state of the user computer when the administrator computer wants to remotely control one of the plurality of user computers, and a USB device equipped with a remote control program connected to the user computer to connect the remote control; When the program is driven, password authentication is performed between the USB device and the user computer, and the user code is compared with the control code of the administrator computer and the control code of the user computer, and then authentication for remote control permission is performed. A third method for synchronizing with the administrator computer and making an online connection And a fourth process of performing remote control by transmitting and receiving data between the manager computer and the user computer; and checking whether the USB device is mounted while the remote control is in progress, and remotely controlling the USB device when the USB device is detached. And a fifth process of terminating the driving of the program and removing the remote control program and the remote control driver existing in the memory of the user computer.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a USB device 10 having a remote control function according to an embodiment of the present invention.

The USB device 10 of the present invention includes a USB connector 12, a USB controller 14, a memory unit 16, a remote control unit 18, a security processing unit 20, a power processing unit 22, an authentication key storage unit. 24, a connection processing unit 26, a remote control performing unit 28, and a USB device connection confirmation unit 30 are provided.

The USB connector 12 is provided for connecting the USB device 10 to a user computer having a USB port (for example, a PC, a notebook computer, a personal information terminal), and the USB controller 14 is a USB connector 12. Control the exchange of data while connected to a user computer equipped with a USB port.

The memory unit 16 stores a remote control program, a USB device connection confirmation program, a remote control driver, an activation key, security information, and the like necessary for performing the remote control. At this time, the memory unit 16 may store only the remote control program and the USB device connection confirmation program or only the activation key according to the embodiment.

The remote control unit 18 controls the user computer to be remotely controlled by the administrator computer, and the security processing unit 20 stores the authentication key stored in the authentication key storage unit 24 when the user computer is remotely controlled by the administrator computer. The authentication process is performed using

The power processing unit 22 controls the power on / off operation of the user computer, and the authentication key storage unit 24 is a cryptographic key for user authentication, a control code of a remote control program, and a PC code for each group of the user computer. Save the information. In this case, the PC code is a value set by management for the purpose of distinguishing each computer, and may be set to a value systematically assigned by an administrator or by using a MAC address (Media Access Control Address) in each computer. For example, the MAC address is displayed as 00-11-43-3D-17-B6.

The connection processor 26 controls the connection of the user computer and the manager computer, and the like, and the remote control performer 28 drives the remote control program and the remote control driver.

In order to check whether the USB device 10 is mounted on the user computer, the USB device connection checking unit 30 detects a normal or abnormal detachment signal of the USB device 10 from the USB controller 14 or at regular intervals. Detachment of the USB device 10 is detected by a method of reading a specific file of the USB device 10. In addition, the USB device connection check unit 30 immediately stops the operation of the remote control program when the detachment of the USB device 10 is detected, and removes the remote control program and the remote control driver from the memory of the user computer.

2 is a schematic structural diagram of a remote control network system according to an embodiment of the present invention.

The plurality of user computers 100 are connected to the manager computer 200 through an internet network. The plurality of user computers 100 may be composed of a desktop computer, a notebook computer, a PDA, and the like, and the USB devices 10 are connected to each other to drive a remote control program. At this time, the remote control program includes a password value for authenticating that the user is a normal owner.

In addition, the USB device 10 and the user computer 100 stores the PC code in the form of file information, so that the PC code values must match each other so that the computer can be remotely controlled.

Accordingly, not only can the USB device 10 limit the remote control to one specific computer, but also control the plurality of computers of a specific group. For example, if the company wants to remotely control the department of a company, the accounting department and the sales department can be distinguished and given a separate code so that the department manager can control only his department.

However, according to an embodiment, the remote control program, the USB device connection confirmation program, and the remote control driver are both stored in the USB device 10, or only the remote control program and the USB device connection confirmation program are stored in the USB device 10. The remote control driver may be stored in the user computer 100.

Also, the remote control program, the USB device connection confirmation program, and the remote control driver are stored in the user computer 100, and the USB device 10 drives the remote control program, the USB device connection confirmation program, and the remote control driver. You can also save the activation key in advance.

Meanwhile, the manager computer 200 stores the remote control request program in advance and remotely controls the user computer 100 on which the remote control program is driven by driving the remote control request program.

Hereinafter, a remote control method according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 3 to 8. First, FIG. 3 is a flowchart illustrating a remote control method according to a first embodiment of the present invention.

The USB device 10 stores the USB device connection confirmation program, the remote control driver, and the remote control program (S111), and connects the USB device 10 to the USB port of the user computer 100 (S112).

The USB device connection confirmation unit 30 drives the USB device connection confirmation program stored in the memory unit 16 (S113), and checks whether the USB device 10 is still connected at a specified time interval (S114).

Thereafter, the remote control execution unit 28 drives the remote control program (S115), and the security processing unit 20 analyzes the password input by the user and performs user authentication (S116). The control execution unit 28 drives the remote control driver of the USB device 10 and waits for performing remote control (S117).

At this time, the manager computer 200 also drives the remote control request program (S118), and requests the user computer 100 whether the current state of the user computer 100 to be remotely controlled is a state capable of remote control (S119). Here, although the manager computer 200 discloses that the remote control request program is driven after the user authentication of the user computer 100 is performed, the manager computer 200 may be driven before the USB device 10 is mounted.

Thereafter, the user computer 100 informs the manager computer 200 of the current state (S120), and when the user computer 100 is in a standby state capable of remote control, the manager computer 200 is connected to the user computer 100. The control code mounted in the remote control program is transmitted (S121). At this time, the control code is information contained in each of the remote control program driven in the user computer 100 and the remote control program driven in the manager computer 200, and the two control codes must match the remote control program. Normal operation of remote control request program is possible.

The user computer 100 compares the control code of the remote control program with the control code of the remote control program received from the manager computer 200 and performs authentication if it matches (S122).

Thereafter, after the synchronization is performed between the user computer 100 and the manager computer 200 (S123), the remote control of the user computer 100 is performed by the manager computer 200 (S124). In this case, the remote control is performed when the operation data and the control command is transmitted to the user computer 100 through an input means (for example, a keyboard) of the manager computer 200, the user computer 100 analyzes and processes the transmitted command. It is a process.

Thereafter, when the remote control is completed and the USB device 10 inserted into the user computer 100 is removed (S125), the USB device connection checking unit 30 immediately terminates the operation of the remote control program. The control mode is released (S126), and the remote control program and the remote control driver are completely removed from the memory of the user computer (S127). Here, an example of recognizing the detached state of the USB device 10 through the USB device connection confirmation program is described. However, when the USB device 10 is separated from the user computer 100, the USB device 10 is recognized by the operating system of the user computer 100. May be

4 is a flowchart illustrating a remote control method according to a second embodiment of the present invention.

In the second embodiment of the present invention, the remote control program and the USB device connection confirmation program are stored in the USB device 10 (S211), and the remote control driver is stored in the user computer 100 (S212). When 10 is mounted in the USB port of the user computer 100 (S213), the USB device connection confirmation unit 30 drives the USB device connection confirmation program stored in the memory unit 16 (S214), the USB device is The connection is automatically checked at a specified time interval (S215). After that, the remote control program is driven (S216).

Hereinafter, since steps S217 to S228 of user password authentication, control code comparison, synchronization, and remote control are the same as those of S116 to S127 of FIG. 3, detailed descriptions thereof will be omitted.

5 is a flowchart illustrating a remote control method according to a third embodiment of the present invention.

The USB device connection confirmation program, the remote control program, and the remote control driver are both stored in the user computer 100 (S312), and the activation key for driving the remote control program is stored in the USB device 10 ( S311).

Thereafter, the USB device 10 is connected to the USB port of the user computer 100 (S313), the USB device connection confirmation program stored in the user computer 100 is driven (S314), and the USB device 10 continues. Check whether the connection is made at a specified time interval (S315). After checking the activation key stored in the USB device to drive the remote control program (S316).

Hereinafter, steps S317 to S328 such as user password authentication, control code comparison, synchronization, and remote control are identical to those of S116 to S127 of FIG. 3, and thus a detailed description thereof will be omitted.

6 to 8 show an embodiment in which a PC code is assigned to the user computer 100 and the USB device 10 so as to control only a designated computer, so that remote control management by individual or group can be performed using one USB device 10. It starts. For example, if you set the PC code on the USB device and the computer A to apply only to the computer A, you will not be able to remotely control the computer B using this USB device 10. When the PC code is set, when the accounting unit computer is to be remotely controlled using this USB device 10, authentication is rejected because the PC code does not match. Although the above example describes an example in which the same PC code is set in the USB device 10 and the user computer A by a code value systematically assigned for management purposes, the MAC address of the user computer A is stored in the USB device 10. It can also be saved and used as a PC code value. In this method using the MAC address, it is preferable that one remote control USB device 10 is used for remote control of one specific computer.

6 is a flowchart illustrating a remote control method according to a fourth embodiment of the present invention.

The USB device 10 stores the USB device connection confirmation program, the remote control driver and the remote control program (S411), and connects the USB device 10 to the USB port of the user computer 100 (S412).

The USB device connection confirmation unit 30 drives the USB device connection confirmation program stored in the memory unit 16 (S413), and checks whether the USB device is still connected at a specified time interval (S414).

Thereafter, the remote control execution unit 28 drives the remote control program (S415), and compares the PC code of the user computer 100 with the PC code stored in the USB device 10 to perform authentication (S416). ). Here, the PC code is a code value for the purpose of distinguishing whether to allow the control of the plurality of user computers 100 from a specific computer, in the form of an information file hidden in the user computer 100 and the USB device 10. Each is stored in advance.

If the PC code authentication is normally performed in step S416, the security processing unit 20 analyzes the password input by the user to perform user authentication (S417), and then drives the remote control driver of the USB device 10. Wait for remote control (S418)

At this time, the manager computer 200 also drives the remote control request program (S419), and requests the user computer 100 whether the current state of the user computer 100 to be remotely controlled is available for remote control (S420). Here, although the manager computer 200 discloses that the remote control request program is driven after the user authentication of the user computer 100 is performed, the manager computer 200 may be driven before the USB device 10 is mounted.

Thereafter, the user computer 100 notifies the manager computer 200 of the current state (S421), and when the user computer 100 is in the standby state capable of remote control, the manager computer 200 moves to the user computer 100. The control code mounted in the remote control request program is transmitted (S422). In this case, the control code is information contained in each of the remote control program driven in the user computer 100 and the remote control request program driven in the manager computer 200, and the remote control program must be identical when both control codes match. Normal operation of the remote control request program is possible.

The user computer 100 compares the control code of the remote control program with the control code of the remote control request program received from the manager computer 200 and authenticates whether it matches (S423).

Thereafter, after synchronization is performed between the user computer 100 and the manager computer 200 (S424), the remote control of the user computer 100 is performed by the manager computer 200 (S425). In this case, the remote control is performed when the operation data and the control command is transmitted to the user computer 100 through an input means (for example, a keyboard) of the manager computer 200, the user computer 100 analyzes and processes the transmitted command. It is a process.

When the remote control is completed, the USB device 10 inserted into the user computer is detached (S426), and the USB device 10 is recognized through the operation of the USB device connection confirmation program to detect the remote control program. By immediately terminating the operation, the remote control mode is released (S427), and the remote control program and the remote control driver are completely removed from the memory of the user computer (S428).

7 is a flowchart illustrating a remote control method according to a fifth embodiment of the present invention.

In the fifth embodiment of the present invention, the remote control program and the USB device connection confirmation program are stored in the USB device 10 (S511), and the remote control driver is stored in the user computer 100 (S512). When 10 is mounted in the USB port of the user computer 100 (S513), the USB device 10 checks the USB device connection program (S514), and checks whether the USB device is still connected at a specified time interval ( S515). Thereafter, the remote control program is driven through the remote control execution unit 28 (S516).

Hereinafter, since the steps S517 to S529 of the PC code authentication, the user password authentication, the control code comparison, the synchronization, and the remote control of the USB and the computer are the same as those of S416 to S428 of FIG. 6, a detailed description thereof will be omitted.

8 is a flowchart illustrating a remote control method according to a sixth embodiment of the present invention.

The USB device connection confirmation program, the remote control program, and the remote control driver are all stored in the user computer 100 (S612), and the activation key for driving the remote control program is stored in the USB device 10 ( S611).

Thereafter, the USB device 10 is connected to the USB port of the user computer 100 (S613), the USB device connection confirmation program stored in the user computer 100 is driven (S614), and the USB device 10 continues. The connection is automatically checked at a specified time interval (S615). After confirming the activation key stored in the USB device 10 to drive the remote control program (S616).

Hereinafter, steps S617 to S629 such as PC code authentication, user password authentication, control code comparison, synchronization, and remote control of the USB device and the user computer are the same as those of S416 to S428 of FIG. 6, and thus a detailed description thereof will be omitted.

Although the present invention is limited to the embodiment using the USB device, the present invention may be implemented using other media (floppy disk, CD-ROM, etc.) instead of the USB device.

As described above, the present invention has the effect of preventing unauthorized remote control and improving the user's convenience by connecting the USB device to the USB port of the user computer only under the user's permission to perform remote control.

In addition, since the remote control program does not remain on the memory of the user computer after the remote control is completed, there is an effect of preventing unauthorized remote control and hacking by a third party.

In addition, by assigning a PC code, only a designated computer can be remotely controlled by a designated USB device, and a plurality of PCs can be divided into groups to be set up for remote control using one USB device for each group. Has the possible effect.

In addition, a preferred embodiment of the present invention is for the purpose of illustration, those skilled in the art will be able to various modifications, changes, replacements and additions through the spirit and scope of the appended claims, such modifications and changes are the following claims It should be seen as belonging to a range.

Claims (10)

A first step of previously matching a plurality of user computers subjected to remote control with an administrator computer performing remote control and storing control codes, respectively; A second step of determining a state of a corresponding user computer when the administrator computer wants to remotely control one of the plurality of user computers; When the USB device equipped with the remote control program is connected to the user computer and the remote control program is driven, password authentication is performed between the USB device and the user computer, and the control code of the administrator computer and the user computer are executed. Comparing a control code of the third computer to perform authentication for remote control permission, and then performing synchronization between the user computer and the administrator computer and connecting online; A fourth process of performing remote control through data transmission / reception between the manager computer and the user computer; And While the remote control is in progress, confirms whether the USB device is installed, and when the USB device is detached, stops the operation of the remote control program and executes the remote control program and the remote control driver existing in the memory of the user computer. Remote control method using a USB device, characterized in that it comprises a fifth step of removing. The method of claim 1, If the user wants to perform remote control only for a designated computer among the user computers, a PC code is assigned to each user computer, the PC code is stored in the USB device, and the USB device is stored in the USB device. And a sixth step of performing authentication by comparing the PC code stored in the USB device with the PC code stored in the USB device when the port is connected to the port. The method of claim 1 or 2, wherein the third process comprises: And storing the USB device connection confirmation program, the remote control driver, and the remote control program in the USB device. The method of claim 1 or 2, wherein the third process comprises: Storing the USB device connection confirmation program and the remote control program in the USB device, and storing the remote control driver in the user computer. The method of claim 1 or 2, wherein the third process comprises: A USB device connection confirmation program, a remote control driver, and a remote control program are stored in the user computer, and an activation key is stored in the USB device, and the activation key is used to connect the USB device to the user computer. And controlling the USB device connection confirmation program, the remote control program, and the remote control driver. The method of claim 2, wherein the sixth process is Remote control method using a USB device, characterized in that the USB device further comprises an authentication program for comparing and authenticating the PC code. The method of claim 2 or 6, wherein the sixth process is A remote control method using a USB device, characterized in that a plurality of user computers in the designated individual or group is performed by using a single USB device. The method of claim 2 or 6, wherein the sixth process is And storing the MAC address (Media Access Control Address) for each user computer in the USB device and using the same as the PC code. The method of claim 1, wherein the fifth process comprises: Step 5-1 of detecting detachment of the USB device through an operating system of the user computer; Step 5-2 of terminating the driving of the remote control program; And And a fifth step of removing the remote control program and the remote control driver residing in the user computer memory. The method of claim 1, wherein the fifth process comprises: A step 5-1 of checking whether the USB device is attached or detached at a predetermined time through a USB device connection confirmation program; Step 5-2 of terminating the driving of the remote control program; And And a fifth step of removing the remote control program and the remote control driver residing in the user computer memory.

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