KR100299718B1 - Method for controlling power switch of computer device and device thereof - Google Patents

Abstract

PURPOSE: A method for controlling a power switch of a computer device and a device thereof are provided to operate on/off of a power supply device in accordance with an identification with a pre-registered password by reading a password inputted through a key button. CONSTITUTION: A waiting power source unit(12) uses a general waiting power source creating device applied to various kinds of electric appliances as a computer device and a television. A key input unit(13) includes a numeral key and a function setting key. Eleven pull-up resistors(R0-R10) and one-touch buttons(B0-B10) are connected to the key input unit(13) between a waiting power source voltage(Vcc) and a ground in serial. A connection node of the pull-up resistors(R0-R10) and one-touch buttons(B0-B10) is connected to input(A0-A10) of a microprocessor(16). A password storing unit(14) stores a password being inputted through the key input unit(13). A LCD display unit(15) displays a numeral set corresponded to a key being inputted through the key input unit(13). If the one-touch buttons(B0-B10) are inputted, the microprocessor(16) decides as to an identification with a password pre-registered in the password storing unit(14), and outputs a clock signal of a high level. A SMPS(Switching Mode Power Supply)(17) is operated in accordance with a power source control signal being applied from a real time clock(18), and creates a plurality of working voltages(V1-V4) requested in various kinds of devices of the computer device based on an inputted power from a power source plug(11).

Description

Power control method of computer device and device therefor

The present invention relates to a computer device, and in particular, by reading the password input through the key button to drive the power supply on or off in accordance with whether or not to match the registered password to prevent leakage of the stored file and damage The present invention relates to a power supply control method of a computer device and a device thereof.

At present, with the rapid development of computer technology, there is a significant improvement in processing speed and function.

In addition, in the personal computer (Personal Computer) has conventionally been used simply for word processing or data processing, recently, a variety of information through various PC communication service media using a computer as a communication terminal (Host) It collects or manages important documents such as general documents and plan related to work systematically through database.

On the other hand, the user stores the above-mentioned various information files and document files, etc. in a hard disk provided inside the personal computer device, important files and the like to give a password in order to prevent leakage by others, or personal computer device If you do not use the external locking device is installed.

However, the conventional personal computer device has a problem that the power lock device is composed of a simple mechanical structure can be easily released by the outsider.

Therefore, in such a case, there is a problem that a personal computer device is booted by another and leaks important files stored in the hard disk.

Accordingly, the present invention has been made in view of the above circumstances, and the computer device is configured to enable the power supply device to be turned on / off according to whether or not the password inputted through the key button is matched with a previously registered password. Its purpose is to provide a power control method and apparatus thereof.

1 is a circuit diagram showing an internal configuration of a power supply control apparatus for a computer according to a first embodiment of the present invention.

2 is a block diagram schematically showing the system configuration of a personal computer to which the present invention is applied.

3 is a flowchart for explaining the operation of the apparatus having the above-described configuration.

*** Explanation of symbols for the main parts of the drawing ***

11: power plug, 12: standby power unit,

13: key input unit, 14: password storage unit,

15: LCD display, 16: microprocessor,

17: Switching Mode Power Supply (SMPS), 18: Real Time Clock (RTC),

SW1: Power switch, OR1: Oagate,

R0 to R10, R11, R12: pull-up resistor, B0 to B10: one-touch button,

Vcc: Standby Voltage.

A power control method for a computer device according to a first aspect of the present invention for achieving the above object is a password registration step of registering a user's password, and supplying standby power for supplying standby power for standby operation of the computer device from the input power source; A password input step of inputting a password by the user's numeric key operation, a password reading step of visually displaying the password entered by the user and reading a registered password, and a password and reading input by the user And a password comparing step of comparing the matched passwords with each other, and an operating power supply step of supplying operating power of the computer device when the input password and the read password coincide with each other.

On the other hand, the power control device of the computer device according to the second aspect of the present invention is a power switch, a standby power unit for generating standby power of the computer, SMPS (SMPS) for generating and supplying a plurality of operating voltage and real time clock (RCT) A computer device comprising: a key input unit having a plurality of numeric keys and a function setting key, a password storage unit for registering and storing a user's password, and an LCD for displaying a number input through the key input unit When the password is input through the display unit and the key input unit, a microcontroller determines whether the password stored in the password storage unit matches the input password based on this and controls the on / off operation of the SMP through the real time clock. Characterized in that it comprises a processor.

That is, according to the present invention having the above-described configuration, it is possible to control the power supply of the computer device by reading the password and determining whether it matches the registered password.

Hereinafter, an apparatus according to the present invention will be described with reference to the drawings.

1 is a circuit diagram showing an internal configuration of a power supply for a computer according to a first embodiment of the present invention.

In the drawing, reference numeral 11 denotes a power plug, and 12 denotes a standby for generating standby power (Vcc: 5V) required in the standby mode of the computer based on the input power from the power plug 11. It is a power supply.

As described above, the standby power supply unit 12 uses a general standby power generating device applied to various electric devices such as a computer device and a television.

In FIG. 1, reference numeral 13 denotes a key input unit having a numeric key and a function setting key, and includes a plurality of pull-up resistors R0 to R10 and one touch buttons B0 to B10 between the standby power supply voltage Vcc and ground. The pull-up resistors R0 to R10 and the connection nodes of the one touch buttons B0 to B10 are connected in series and are coupled to the inputs A0 to A10 of the microprocessor 16 to be described later.

In addition, 14 is a password storage unit (E ² PROM) for storing the password input through the key input unit 13, 15 is an LCD display unit showing a number set corresponding to the key input through the key input unit 13, 16, when the one-touch buttons B0 to B10 provided in the key input unit 13 are input, it is determined whether the password matches the pre-registered password in the password storage unit 14 based on this, for example, a high level clock signal. It is a microprocessor that outputs.

)에 따라 동작하고, 또 상기 전원플러그(11)로부터의 입력전원을 근거로 컴퓨터 장치내 구비된 각종 디바이스에 요구되는 다수의 동작전압(V1∼V4)을 생성하는 SMPS(Switching Mode Power Supply)이다.17 denotes a power supply control signal applied from the RTC 18 to be described later.

And a switching mode power supply (SMPS) for generating a plurality of operating voltages V1 to V4 required for various devices included in the computer apparatus based on the input power from the power plug 11. .

In addition, reference numeral SW1 is provided on the outside of the computer main body is an on / off switch for the user to mechanically control the computer on / off.

In addition, in FIG. 1, one end of the switch SW1 is grounded, and the other end of the switch SW1 is coupled to one input terminal of the OR gate OR1 and is connected to the standby power supply VCC through a pull up resistor R1.

That is, the switch SW1 applies low level signals to the input terminals of the OR gate OR1 in the on state and high level signals in the off state.

On the other hand, the other output terminal of the OR gate OR1 is coupled to the clock output terminal CLK of the microprocessor 16.

Accordingly, when the low level clock signal is output through the clock output terminal CLK and the switch SW1 is turned on, the oragate OR1 outputs a low level signal, and otherwise, a high level signal is output. Done.

)에 결합되고, 그 출력단(

)이 풀업저항(R2)을 통해 상술한 SMPS(17)에 결합된다.In addition, reference numeral 18 is an RTC (Real Time Clock), and the output of the ORA gate OR1 is a kick start signal input terminal (

) And its output stage (

) Is coupled to the SMPS 17 described above via a pull-up resistor R2.

)을 통해 입력되는 신호가 로우레벨로 강하되면 해당 신호의 폴링엣지(Falling edge)에서 예컨데 2초동안 출력단(

)을 통해 로우레벨의 전원제어신호를 출력하고, 또 이 로우레벨의 전원제어신호에 의해 SMPS(17)가 정상적으로 구동되어 SMPS(17)로부터 +5V의 정상적인 전압이 인가되면 출력단(

)을 통해 계속 로우레벨의 전원제어신호를 출력하게 된다.In addition, the RTC 18 is a kick start signal input stage (

When the signal inputted through) drops to the low level, the output edge (for 2 seconds, for example, at the falling edge of the signal)

Outputs a low-level power control signal through the low power supply control signal. When the SMPS 17 is normally driven by the low-level power supply control signal and a normal voltage of +5 V is applied from the SMPS 17,

) Will continue to output the low-level power control signal.

)이 하이레벨로 설정될 때가지 로우레벨 전원제어신호를 지속적으로 출력하게 된다.At this time, the RTC 18 has a separate power-off operation, i.e., its output stage by predetermined control data applied through the system data bus.

) Will continue to output the low level power control signal until it is set to high level.

)을 통해 입력되는 신호상태를 셋트하기 위한 상태 레지스터(도시되지 않음)를 구비하여, 킥스타트신호 입력단(

)을 통해 입력되는 신호의 폴링엣지에서 예컨데 "1"의 상태플래그를 셋트하게 되는데, 이러한 상태플래그는 시스템 어드레스버스와 데이터버스를 통해 독출 및 리셋트할 수 있게 된다.In addition, the RTC 18 is the kick start signal input stage (

And a status register (not shown) for setting the signal state input through the

At the polling edge of the signal inputted through), for example, a status flag of "1" is set, which can be read and reset through the system address bus and the data bus.

2 is a block diagram schematically illustrating a system configuration of a personal computer to which the device having the above-described configuration is applied. In FIG. 2, the same reference numerals are given to the same parts as in FIG. 1, and detailed description thereof will be omitted.

In FIG. 2, reference numeral 20 denotes a central processor unit (CPU), 21 denotes a main memory for storing various data or programs related to the operation of a computer, and 22 denotes the address based on address data applied from the CPU 20. As memory controllers that control access operations to the main memory 21, they are coupled to each other via a CPU bus, that is, a CPU data bus and a CPU address bus.

In FIG. 2, reference numeral 23 denotes a buffer for data transmission and reception between the CPU bus and the Peripheral Component Interconnection Bus (PCI).

Also, reference numeral 24 is a PCI slot, which combines a hard disk drive with a video card for outputting video data to a peripheral device, such as a monitor, which is usually operated at high speed.

Reference numeral 25 denotes a BIOS in which the above-described control program of the CPU 20 is stored, 26 denotes a keyboard controller which executes control of the keyboard or mouse, 27 denotes a modem, a sound card, a floppy disk drive and a printer, and the like. As an ISA (Industrial Standard Architecture) slot into which peripherals operating at low speeds are coupled, they are interconnected via a system bus, a system data bus and a system address bus.

Reference numeral 28 denotes a PCI / ISA bridge that controls data transmission and reception between the PCI bus and the system bus.

Next, the operation of the apparatus having the above-described configuration will be described with reference to the flowchart shown in FIG.

First, when a user inserts a power plug 11 into an outlet (not shown) in a state in which a random password is pre-registered in the password storage unit 14, the power plug 11 is applied from the power plug 11. As the standby power supply unit 12 is operated by the input power source, other circuit units except the SMPS 17 in FIG. 1 operate (ST11).

Thereafter, when the user selects an arbitrary numeric key button of the key input unit 13 (ST12), and the signal data corresponding thereto, that is, the secret code is input to the microprocessor 16, the microprocessor 16 inputs the input signal data. The number corresponding to the display is displayed on the LCD display unit 15, and the password registered in the password storage unit 14 is read out (ST13), and the inputted password is compared with the read password. (ST14) .

Then, the microprocessor 16 maintains the current state if the input password and the read password do not match as a result of the determination of step ST14, and outputs, for example, a low level signal to the clock output terminal CLK when the microprocessor 16 matches ( ST15)

)에 인가되고, 이에 따라 RTC(18)에서 출력단(

)은 로우레벨신호를 출력하여 SMPS(17)가 작동되게 된다(ST17).Then, when the user turns on the computer by operating the mechanical switch (SW1) installed in the computer main body (ST16), the low level signal through the ORA gate (OR1) kickstart signal input terminal (

), And thus the output stage () at RTC 18

) Outputs a low level signal to activate the SMPS 17 (ST17).

Accordingly, the computer executes a cold boot operation, which is executed based on a program stored in the BIOS 25 (ST19). That is, the CPU 20 first executes a system check function for checking an abnormal state of each circuit section, and then reads the CMOS in the RTC 4 to execute system initialization processing (ST18).

That is, according to the above embodiment, in a computer device in which a mechanical switch is operated on / off to perform a cold boot operation, the password inputted through the key input means is matched with a registered password. The power supply of the computer device can be driven.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary of this invention.

As described above, in the present invention, the power control of the computer device is configured to read out the password input through the key button and to turn on / off the power supply provided in the computer device according to whether or not the password matches the previously registered password. The method and the apparatus can be realized.

Claims (2)

Password registration step of registering the user's password, A standby power supply step of supplying standby power for standby operation of a computer device from an input power source, Password input step of inputting password by user's numeric key operation, Password reading step of reading the registered password and visually displaying the password entered by the user, Password comparison step of comparing the password entered by the user and the read password, And an operating power supply step in which the operating power of the computer device is supplied when the input password and the read password coincide with each other. A computer device comprising a power switch, a standby power supply unit for generating standby power of a computer, an SMPS and a real time clock (RTC) for generating and supplying a plurality of operating voltages. Key input unit provided with a plurality of numeric keys and function setting keys, Password storage unit for registering and storing the user's password, An LCD display unit for displaying a number input through the key input unit; And a microprocessor for controlling the on / off operation of the SMP through the real time clock by determining whether the password stored in the password storage unit matches the input password if the password is input through the key input unit. Power control device for a computer device, characterized in that configured to.

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