KR20010045258A - Computer security apparatus - Google Patents

Abstract

PURPOSE: A computer case security apparatus is provided to prevent other person from opening a computer case, and to generate alarm sound in the case that the computer is moved without permission so that it can protect important data stored in a hard disk and high priced parts embedded in the computer. CONSTITUTION: The apparatus comprises a case cover(10), a case frame(12) and a control board(32). The case cover(10) has one hole for putting in an LED displaying a power on/off state and a hard disk drive state, and another hole for putting in a key contact module to be contacted by an electronic key. A pair of push switches are installed at either side of the case cover(10) to separate the case frame(12) from the case cover(10). The case frame(12) includes a guide(24) to insert a circular element in, and a solenoid lock(30) to be switched on/off according to a control signal. The control board(32), inserted into a slot of a main board, generates control signals according to the signals transmitted from the key contact module(26).

Description

Computer Case Security Device {COMPUTER SECURITY APPARATUS}

The present invention relates to a security device, and more particularly, to prevent anyone from arbitrarily opening the computer case to prevent theft of the main data and computer parts of the hard disk mounted inside the computer, and to detect the unauthorized movement of the computer The present invention relates to a computer case security device that prevents theft of a computer main body by sending an alarm sound.

Recently, due to the rapid development of the computer and electronics industry, computers are installed in most offices, and are widely used for control or database in manufacturing and sales sites.

Just as this type of work changes, data is leaked to the outside, and the theft rate of computers and computer parts is increasing rapidly.

Accordingly, a security device has been developed and released to protect the data of the computer or to prevent anyone from opening the computer case arbitrarily.

In general, computer security devices are divided into protecting data stored and preventing theft of computer components.

A security device for protecting data stored in a hard disk of a computer is made of only software and hardware and software. In this case, a function of encrypting and protecting data to be stored or communicated in a computer is performed. Security devices to protect data are often used only for the cost of manufacturing and software that is convenient to manage.However, where security level should be high, a combination of hardware and software such as IC card is used to increase security. do.

Since the components inside the computer case are expensive for their weight, theft accidents occur as frequently as precious metals such as gold and silver. In the case of a hard disk, important information of a large capacity can be taken off at once. As a security device for preventing theft of such computer components, a mechanical structure consisting of a key and a lock is mainly used.

However, the conventional computer case security device described above has the following disadvantages.

First, since the mechanical structure consisting of a key and a lock, it is possible to unlock with a universal key.

Secondly, if a computer is lost or stolen, not only the user can use the computer, but also has the problem of opening the computer case and disposing of the computer parts without permission.

Therefore, the present invention is to supply power to the computer only by touching the electronic key, and open the computer case, so that you can not open the computer case, because you can not turn on the computer without the person with the electronic key. If you do not take out the parts inside the computer case without permission as a step 1, and if necessary add a second step to add an alarm function through the vibration sensor to detect theft or vandalism of the computer, It is based on the idea that it can be overcome.

SUMMARY OF THE INVENTION An object of the present invention for overcoming the above-mentioned problems and to achieve the above object is to provide a computer case security device capable of supplying power and opening and closing a computer case according to contact of an electronic key.

1 is a perspective view showing the appearance of a desktop computer which is an embodiment to which the security device according to the present invention is applied.

Figure 2 is a perspective view showing a connection state of the security device according to the invention shown in FIG.

3 is a cross-sectional view showing a locking method shown in FIG.

* Description of the symbols for the main parts of the drawings *

18: latch 26: contact switch

30: solenoid 32: control board

A feature of the present invention for achieving the above object is that the computer case can be opened only in one direction so that the case can not be opened outside the case, the case is opened only by driving a locking device installed inside the case, the inside of the case It is equipped with a latch to lock the hook, and a computer case frame for locking or opening the inner latch using a solenoid lock, etc .; A control board which is installed inside the case frame or mounted in a PCI slot of a computer main board provided at the bottom, and controls the locking device to open or lock the case, and contacts the control board to communicate a password. The present invention provides a computer case security device including an electronic key having a logic circuit for sending and receiving passwords.

Hereinafter, the embodiment according to the present invention will be described in detail.

1 is a perspective view showing the appearance of a computer case security device according to an embodiment of the present invention, the desktop computer case is roughly composed of a case cover 10 and a case frame 12.

The right side of the front of the case cover 10 is provided with a rectangular hole into which the front portion of the CD-ROM drive is inserted, and the center portion is formed with a straight hole into which the front portion of the 3.5-inch floppy disk drive is inserted.

In addition, the upper left upper side of the case cover 10 is provided with a hole into which a status display LED indicating whether the power is turned on and the operation of the hard disk is fitted, and at the bottom thereof, a key contact unit 26 in which an electronic key is in contact. ) Is provided with a hole 16 for a key contact portion.

Both side surfaces of the case cover 10 are provided with push switches 14 for pressing and detaching the case cover 10 from the case frame 12, respectively, and the inner sidewalls of the case cover 10 are generally rectangular in shape. Clasp 18 is fixedly installed. At this time, a hook hole is formed in the center portion of the hook portion 18, and a portion fixed to the inner sidewall of the case cover 10 by welding or the like is bent at an angle of 90 °, and the end portion is It is bent at an angle of about 45 °.

On the other hand, the CD-ROM drive 20 is mounted on the front right side of the case frame 12, and the 3.5-inch floppy disk drive 22 is mounted on the front center.

A guide 24 into which the circular element can be fitted is mounted on the front left side of the case frame 12, and the key contact portion 26 is provided on the guide 24. On it, a status indicator lamp assembly 28 is installed.

In addition, the inner side wall of the case frame 12 is fixed to the solenoid lock device 30 that is turned on / off in the horizontal axis direction in accordance with the control signal.

On the other hand, the slot 34 of the computer main board 38, the control board 32 for generating a control signal according to the signal transmitted from the key contact portion 26 is flowered. In other words, the control board measures the duration of the signal transmitted from the key contact unit 26, and outputs a computer reset signal, a keyboard lock signal, a power on / off signal, a case open signal, and the like.

Here, the control board 32 is supplied with power from the slot 34, or directly from the power supply 36 of the computer, which is also composed of a microprocessor, so that a small amount of power This is because it needs to be supplied to operate.

Referring to the connection state between the components of the computer case security device of the present invention having the above configuration is as follows.

Figure 2 is a perspective view showing the connection of the main part in the computer case security device according to the present invention, the control board 32 has a first to seventh connectors (32a-32g), the second connector (32b) It is connected to the solenoid 30 through, and is connected to the key contact portion 26 through the third connector (32c).

In addition, the control board 32 is supplied with power through the first connector 32a or the fifth connector 32e, and powered on / off through the fourth connector 32d or the fifth connector 32e. Outputs first to third command signals such as reset, keyboard lock, and the like. In this case, the order of the first to third command signals may be changed according to the manufacturer's design rule, and the number and types of the command signals may be changed or expanded.

The security device locks or unlocks the computer case by bringing the electronic key 40 into contact with the key contact portion 26. The electronic key 40 is similar to an automobile key in appearance, and has a nonvolatile structure such as a flash memory. It comprises a memory and a predetermined logic circuit, the outside of which is surrounded by a metallic material to withstand shock or vibration.

The operation flow of the computer case security device having the above-described connection is described, but for clarity of explanation, the first command is powered on / off, the second command is reset, the third command is keyboard locked, and the fourth command is described. Is assumed to be case-open.

First, a password is stored in the electronic key 40 and a nonvolatile memory inside the control board 32 in a manufacturing step, and the control board 32 controls the electronic key 40 and the password every time the computer is turned on. By changing and storing the memory in the board 32, even the manufacturer or the user of the security device does not know the password, so the security is thoroughly maintained. The form and length of this password can vary depending on the manufacturer's design rules, but sizes from 64 to 256 bits are sufficient, and if the confidentiality level is very high, increase the number of bits.

When the electronic key 40 is in contact with the key contact unit 26, the control board 32 reads the password stored in the nonvolatile memory inside the electronic key 40, and the password stored in the control board 32. Compare.

If the password is the same, the control board 32 transmits a power-on command signal to the input pin on the main board through the fourth connector 32d so that the computer is turned on.

After the computer is turned on, the control board 32 divides the first to third command signals by a time difference. If the time difference is set to 1 second, the contact between the electronic key 40 and the key contact part 26 is performed. The first command is executed until 1 second before this time is maintained, the second command is performed from 1 second to 2 seconds ago, and the third command is performed from 2 seconds to 3 seconds ago.

In other words, since the electronic key 40 is touched, the first command is recognized. Therefore, the electronic device 40 recognizes the first command without delay and outputs a power-on command signal that is the first command. Recognizes as a second command, and outputs a reset command signal as a second command, and if it exceeds 2 seconds while the contact is maintained, recognizes it as a third command, outputs a keyboard lock command signal as a third command and maintains the contact. When it exceeds 3 seconds, it recognizes as a 4th command and transmits the computer case open signal which is a 4th command to the solenoid 30. FIG.

As shown in FIG. 3, the solenoid 30 receiving the computer case open signal is retracted in the horizontal axis direction when the driving shaft 30a fitted to the hook 18 is turned on, thereby releasing the locked state of the computer case. Accordingly, the user can open the computer case by pressing the push buttons 14 provided on both sides of the case cover 10.

On the contrary, in order to lock the computer case, when the case cover 10 is coupled to the case frame 12 by sliding, the bent portion of the end of the hook 18 moves forward while pushing the drive shaft 30a, and the drive shaft 30a. ) Is locked into the hole in the center of the hanging (18). At this time, the non-described spring 30b is provided to provide elasticity to the drive shaft 30a, and the solenoid locking device may use a motor-driven locking device according to the structure of the latch.

Meanwhile, the electronic key is divided into two types according to the types of command signals that can be executed, and the computer user is divided into an administrator and a user, and the administrator is provided with an electronic key for the administrator so that the first to fourth commands can be executed. The user may be provided with a user electronic key to execute only the first to third commands.

That is, the authorization code is recorded in the electronic key provided to the administrator, and the control board has a function of performing a command according to the authorization code. The electronic key for the user cannot open the computer case, whereas the administrator Electronic keys can be used to perform all functions.

In the case of a computer used by a large number of members or customers, the classified electronic keys are provided only for the electronic keys for the user, so that there is no problem in using them, and the case can be opened unnecessarily or theft of components installed therein can be prevented.

On the other hand, since the case can not be opened, a vibration sensor can be attached to the control board in case of forcibly dismantling the computer case or in case of unauthorized movement of the computer body. When detecting vibration or shock from the outside, the control board 32 outputs an alarm sound through a speaker connected by wire through the sixth connector 32f, or is installed wirelessly through the seventh connector 32g. By driving the burglar alarm, a powerful alarm sound can be generated to prevent and stop theft or vandalism. Although not shown in the figure, the burglar alarm is a device that outputs an alarm sound when wirelessly receives a predetermined signal. The burglar alarm may be installed on a wall or the like near a computer to be protected. do.

According to a preferred embodiment of the present embodiment as described above, it has the following advantages.

First, if there is no electronic key with the case open authority, since the computer case can not be opened arbitrarily, it has the advantage of improving the security level of the computer.

Second, because the user and the administrator can use a separate electronic key, it is easy to manage the security of computers used by multiple people.

Third, since the electronic key automatically records the password, it is not necessary to remember the password, so it is convenient to use.

Fourth, when the control board is embedded in the computer's main board to purchase as an OEM, there is an advantage to improve the customer satisfaction of the computer manufacturer.

Fifth, when the vibration sensor is attached to the control board as an optional function, powerful alarm sound is output by using loud volume speaker through wired or wireless for theft through unauthorized movement of the computer body or the destruction of the computer case. This can prevent theft.

Sixth, because the control board performs the power on / off function of the computer instead, the computer cannot be turned on without the electronic key, and thus there is an advantage of preventing unauthorized use of the computer and unauthorized copying, printing, and leakage of important information. .

Claims (8)

It is a computer case security device designed to open the case only by driving the locking device installed inside the case. A computer case frame is provided with a latch to lock the inside of the case, and the internal latch can be locked or opened using a solenoid lock. A control board which is installed inside the case frame or mounted in a PCI slot of a computer main board provided at the bottom, and controls the locking device to open or lock the case, and contacts the control board to communicate a password. Computer case security device, characterized in that it comprises an electronic key with a built-in logic circuit for sending and receiving passwords. The method of claim 1, The control signal transmitted from the control board is a computer case security device, characterized in that the power on / off, reset, keyboard lock input signal, the case open signal on the computer main board. The method of claim 1, Computer case security further comprises a vibration detection circuit for detecting the impact of unauthorized movement of the computer body or computer destruction, and an alarm device connected to the control board by wire or wireless to output an alarm sound according to the signal of the control board Device. The method according to claim 1 or 2, The control signal output from the control board is a computer case security device, characterized in that generated by detecting the time the electronic key is in contact with the key contact. The method according to any one of claims 1 to 3, Computer case security device, characterized in that the alarm sound output stops only by the electronic key when the alarm sound. The method of claim 1, The electronic key includes a plurality of logic circuit elements and a memory having a predetermined capacity therein, and the surface of the electronic key is surrounded by a metallic material to be resistant to shock and vibration from the outside, and a password recorded in the internal memory is controlled by a control board. Computer case security device, characterized in that it further comprises that the change of the new password under the control of. The method of claim 1, The control board is a computer case security device, characterized in that the power is supplied directly from the power supply or through the PCI slot of the computer motherboard using the power supply of the computer to be installed. The method of claim 1, The control signal transmitted to the motherboard is a computer case security device, characterized in that one of the power on / off, reset, keyboard lock, case open.