KR970010636B1 - Green monitor using infrared sensor - Google Patents

Green monitor using infrared sensor Download PDF

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KR970010636B1
KR970010636B1 KR1019940011890A KR19940011890A KR970010636B1 KR 970010636 B1 KR970010636 B1 KR 970010636B1 KR 1019940011890 A KR1019940011890 A KR 1019940011890A KR 19940011890 A KR19940011890 A KR 19940011890A KR 970010636 B1 KR970010636 B1 KR 970010636B1
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South Korea
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synchronous signal
turned
monitor
transistor
mode
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KR1019940011890A
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Korean (ko)
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KR950033787A (en
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강범구
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대우전자 주식회사
배순훈
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3231—Monitoring the presence, absence or movement of users
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3265—Power saving in display device

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

An apparatus for controlling power-saving modes of a monitor using infrared-ray sensor is made up of the infrared-ray sensor(10) sensing human body by the heat of human body; the first amplifying means to amplify the sensed signal to appointed level; the second amplifying means to amplify the output of the first amplifying means; the switching means turned on/off according to the output of the second amplifying means; the first charging means that, when a switching means is turned off, is charged for appointed time to supply appointed charged voltage; the vertical synchronous signal intercepting transistor which, when the first charging means supplies appointed charged voltage, is turned on to intercept vertical synchronous signal; the second charging means that, if vertical synchronous signal intercepting transistor is turned on, is charged for appointed time to supply appointed charged voltage; and the horizontal synchronous signal intercepting transistor, if the second charging means supplies appointed charged voltage, is turned on to intercept horizontal synchronous signal.

Description

적외선 센서를 이용한 절전모니터(An apparatus for controlling powersaving modes of a monitor using an infrared-ray sensor)An apparatus for controlling powersaving modes of a monitor using an infrared-ray sensor

제1도는 본 발명의 적외선 센서를 이용한 절전모니터의 회로도.1 is a circuit diagram of a power saving monitor using an infrared sensor of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 적외선 센서 20 : 제1증폭수단10: infrared sensor 20: first amplification means

30 : 제2증폭수단 40 : 스위칭수단30: second amplification means 40: switching means

50 : 수직동기신호 차단수단 60 : 수평동기신호 차단수단50: vertical synchronous signal blocking means 60: horizontal synchronous signal blocking means

[발명의 목적][Purpose of invention]

[발명이 속하는 기술분야 및 그 분야의 종래기술][Technical Field to which the Invention belongs and Prior Art in the Field]

본 발명은 적외선 센서를 이용한 절전모니터에 관한 것으로, 특히 절전(POWER-SAVING)기능이 있는 컴퓨터(pc)의 본체에서 절전모니터를 사용할 수 있음은 물론 절전기능이 없는 pc의 본체에서도 모니터가 절전기능으로 동작할 수 있도록 된 적외선 센서를 이용한 절전모니터에 관한 것이다.The present invention relates to a power saving monitor using an infrared sensor, and in particular, the power saving monitor can be used in the main body of a computer (PC) having a power saving (POWER-SAVING) function. It relates to a power saving monitor using an infrared sensor that can be operated.

일반적으로 절전기능을 구비한 컴퓨터라 함은 키보드로부터 일정 시간동안 키신호가 입력되지 않으면 pc본체에서 사용자가 모니터를 사용하지 않는 것으로 판단하여 전력소비를 감소시키도록 자동 제어하는 컴퓨터를 말한다.In general, a computer having a power saving function refers to a computer that automatically controls the PC body to reduce power consumption by determining that the user does not use the monitor when a key signal is not input from the keyboard for a predetermined time.

즉, 종래의 절전기능을 구비한 컴퓨터는 pc 본체에서 사용자의 키입력이 없으면 일정한 시간동안 카운팅(counting)을 하여 먼저 수평동기신호를 '0v'로 하고, 계속하여 키입력이 없으면 수평동기신호를 출력한 후 수직동기신호를 '0v'로 한다. 이어서 계속하여 사용자의 키입력이 없으면 수평, 수직동기신호를 '0v'로 하여 오프한다.In other words, a computer having a conventional power saving function counts for a certain period of time without a user's key input on the PC main body, and sets the horizontal synchronous signal to '0v' first, and if there is no key input, the horizontal synchronous signal is output. After output, set vertical sync signal to '0v'. Subsequently, if there is no key input by the user, the horizontal and vertical synchronization signals are turned off as '0v'.

다시 말해서, 모니터가 정상모드로 동작할 때에는 수평, 수직동기신호가 모두 액티브(Active) 상태이므로 전력소비도 정상적으로 이루어지나, 모니터를 사용하다가 일정시간 이상 사용하지 않을 경우에는 불필요하게 전력이 소모되므로 이를 방지하기 위한 수단으로 최근에는 모니터에 절전회로(DPMS:Display Power Management Signaling)를 사용하여 전력소비를 최대한으로 감소시키고 있다.In other words, when the monitor is operating in the normal mode, the horizontal and vertical synchronization signals are all active, so power consumption is normal.However, when the monitor is not used for a certain period of time, power is consumed unnecessarily. In recent years, power consumption circuits (DPMS: Display Power Management Signaling) are used in monitors to reduce power consumption.

이와 같은 절전회로에는 다음 표 1과 같이 4가지 동작모드(절전모드)가 있는데, 각 모드에 따라 해당 전력소비의 감소를 수행할 수 있으며, 이에는 정상모드(NORMAL), 스탠바이모드(STAND BY), 서스팬드모드(SUSPEND MODE), 및 오프모드(OFF MODE)가 있다.There are four operation modes (power saving mode) in the power saving circuit as shown in the following Table 1, and the corresponding power consumption can be reduced according to each mode, which includes the normal mode (NORMAL) and standby mode (STAND BY). , Suspend mode, and off mode.

상기 표 l을 참조하면, 스탠바이 모드는 수평동기신호가 인액티브(없음) 상태이고, 수직동기신호가 액티브(있음) 상태이므로 전력소비를 감소시킬 수 있는 정도는 미니멈(minimun)이 된다.Referring to Table 1, in the standby mode, since the horizontal synchronization signal is inactive (none) and the vertical synchronization signal is active (active), the degree to which power consumption can be reduced is minimum.

또한 서스팬드 모드는 수평동기신호가 액티브 상태이고, 수직동기신호는 인액티브 상태이므로 전력소비를 감소시킬 수 있는 정도는 시그니피션트(significiant)가 된다.In the suspend mode, since the horizontal synchronization signal is active and the vertical synchronization signal is inactive, the degree to which the power consumption can be reduced becomes a signature.

한편, 오프모드에 있어서는 수평동기신호가 인액티브 상태이고, 수직동기신호도 인액티브상태이므로 전력소비를 감소시킬 수 있는 정도는 맥시멈(maximum)이 된다.On the other hand, in the off mode, the horizontal synchronizing signal is in an inactive state, and the vertical synchronizing signal is also in an inactive state, so that the degree of power consumption can be reduced to a maximum.

그러나, 상기와 같은 종래 모니터는 모니터에 절전기능이 구비되어 있어도 절전기능이 없는 pc 본체와 연결되면 절전기능 모니터로서의 역할을 할 수 없게 되는 문제점이 있었다.However, the conventional monitor as described above has a problem in that even if the monitor is provided with a power saving function, when it is connected to the main body of the PC without the power saving function, the monitor cannot function as a power saving function monitor.

[발명이 이루고자 하는 기술적 과정][Technical Process to Invent]

이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 제안된 것으로, 절전 기능이 있는 pc 본체에서 뿐만 아니라 절전기능이 없는 pc 본체에서도 모니터가 사용자의 존재여부를 판단하여 절전모니터의 기능을 수행시키도록 하므로써 시스템의 기능성을 향상시키도록 된 적외선 센서를 이용한 절전모니터를 제공함에 그 목적이 있다.Accordingly, the present invention has been proposed to solve the above problems, by not only in the PC main body with power saving function, but also in the main body of PC without power saving function to determine the presence of the user to perform the function of the power saving monitor. It is an object of the present invention to provide a power saving monitor using an infrared sensor to improve the functionality of the system.

상기와 같은 목적을 달성하기 위하여 본 발명은 컴퓨터(pc) 본체로부터 입력되는 수직동기신호와 수평동기신호에 따라 절전모드를 판별하여 수평동기신호와 수직동기신호가 모두 있으면 정상모드로 동작하고, 수평동기신호는 있으나 수직동기신호만 차단되면 서스팬드모드로 동작하며, 수직동기신호와 수평동기신호가 모두 차단되면 오프모드로 동작하도록 된 모니터에 있어서, 인체의 열에 의해 사람을 감지하는 적외선 센서와, 상기 적외선 센서에 의해 감지된 신호를 소정 레벨로 증폭시키는 제1증폭수단; 상기 제1증폭수단의 출력을 재차 증폭시키는 제2증폭수단, 상기 제2증폭수단의 출력에 따라 온/오프되는 스위칭수단, 상기 스위칭수단이 오프되면 소정 시간동안 충전되어 소정의 충전전압을 제공하는 제1충전수단; 상기 제1충전수단이 소정의 충전전압을 제공하면 온되어 상기 수직동기신호를 차단시키는 수직동기신호 차단 트랜지스터; 상기 수직동기신호 차단 트랜지스터가 온되면 소정 시간동안 충전되어 소정의 충전전압을 제공하는 제2충전수단; 및 상기 제2충전수단이 소정의 충전전압을 제공하면 온되어 상기 수평동기신호를 차단시키는 수평동기신호 차단 트랜지스터가 구비된 것을 특징으로 한다.In order to achieve the above object, the present invention determines the power saving mode according to the vertical synchronous signal and the horizontal synchronous signal inputted from the computer (pc) main body and operates in the normal mode if both the horizontal synchronous signal and the vertical synchronous signal are present. The monitor has a synchronous signal but operates in suspend mode when only the vertical synchronous signal is blocked, and operates in off mode when both the vertical synchronous signal and the horizontal synchronous signal are blocked. An infrared sensor for detecting a person by heat of the human body; First amplifying means for amplifying the signal sensed by the infrared sensor to a predetermined level; A second amplifying means for amplifying the output of the first amplifying means again, a switching means turned on / off according to the output of the second amplifying means, and when the switching means is turned off, it is charged for a predetermined time to provide a predetermined charging voltage. First charging means; A vertical synchronous signal blocking transistor which is turned on when the first charging means provides a predetermined charging voltage to block the vertical synchronous signal; Second charging means for charging for a predetermined time when the vertical synchronization signal blocking transistor is turned on to provide a predetermined charging voltage; And a horizontal synchronous signal blocking transistor which is turned on when the second charging means provides a predetermined charging voltage to block the horizontal synchronous signal.

[발명의 구성 및 작용][Configuration and Function of Invention]

이하, 첨부된 예시도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 제1도에 도시된 바와 같이, 인체의 열에 의해 사람을 감지하는 감지수단인 적외선 센서(10)와; op 앰프(IC1), 저항(Rl)(R2), 가변저항(VRl), 콘덴서(C1)로 이루어져 적외선 센서(10)에 의해 감지된 신호를 1차적으로 증폭시키는 제1증폭수단(20)과; op 앰프(IC2), 저항(R3∼R5), 콘덴서(C2)로 이루어져 상기 제1증폭수단(20)에 의해 증폭된 감지신호를 2차적으로 증폭시키는 제2증폭수단(30)과; 트랜지스터(Ql)와 저항(R6∼R8)으로 이루어져 상기 제2증폭수단(30)의 출력 레벨에 따라 스위칭되는 스위칭수단(40)과; 트랜지스터(Q2), 콘덴서(C3), 저항(R9)(R10)으로 이루어져 상기 스위칭수단(40)이 오프되고 일정시간이 지난 후 수직동기신호를 차단시키는 수직동기신호 차단수단(50)과; 트랜지스터(Q3), 저항(R11)(R12), 콘덴서(C4)로 이루어져 수직동기신호가 차단되고 일정시간이 지난 후 수평동기신호를 차단시키는 수평동기신호 차단수단(60)으로 구성되어 있다.The present invention, as shown in Figure 1, the infrared sensor 10 as a sensing means for detecting a person by the heat of the human body; a first amplifying means (20) composed of an op amp (IC1), a resistor (Rl) (R2), a variable resistor (VRl), and a capacitor (C1) to amplify the signal sensed by the infrared sensor 10 firstly; ; second amplifying means (30) comprising an op amp (IC2), resistors (R3 to R5), and a condenser (C2) to amplify secondly the sensed signal amplified by the first amplifying means (20); Switching means (40) composed of a transistor (Ql) and resistors (R6 to R8) and switched according to the output level of the second amplifying means (30); A vertical synchronous signal blocking means (50) which is composed of a transistor (Q2), a condenser (C3) and a resistor (R9) (R10) and blocks the vertical synchronous signal after a predetermined time after the switching means (40) is turned off; It consists of a transistor (Q3), resistors (R11) (R12), a capacitor (C4) is composed of a horizontal synchronous signal blocking means 60 for blocking the vertical synchronous signal is blocked and the horizontal synchronous signal after a predetermined time.

이어서, 상기와 같이 구성되는 본 발명의 작용, 효과를 설명한다.Next, the operation and effect of the present invention configured as described above will be described.

먼저, 본 발명은 적외선 센서(10)에 의해 사용자가 검출되게 되면, 이 적외선 센서(10)로부터 전류값이 매우 미약하기 때문에 제1증폭수단(20)과 제2증폭수단(30)에 의해 소정 레벨로 재차 증폭된다.First, in the present invention, when the user is detected by the infrared sensor 10, since the current value is very weak from the infrared sensor 10, the first amplifying means 20 and the second amplifying means 30 are predetermined. Amplified again to level.

따라서, 제2증폭수단(30)의 op 앰프(IC2)를 통하여 출력되는 전류에 의하여 스위칭수단(40)의 트랜기스터(Ql)가 온되면, 전원(Vcc)이 저항(R8)과 트랜지스터(Ql)를 통하여 접지측으로 인가되기 때문에 수식동기신호 차단수단(50)과 수평동기신호 차단수단(60)의 각 트랜지스터(Q2)(Q3)가 오프되어 수직동기신호(Vsync)와 수평동기신호(Hsync)가 모니터에 정상적으로 인가되게 한다.Therefore, when the transistor Ql of the switching means 40 is turned on by the current output through the op amp IC2 of the second amplifying means 30, the power supply Vcc is the resistor R8 and the transistor ( Since it is applied to the ground side through Ql), the transistors Q2 and Q3 of the modified synchronous signal blocking means 50 and the horizontal synchronous signal blocking means 60 are turned off, so that the vertical synchronous signal Vsync and the horizontal synchronous signal Hsync are turned off. ) Is properly applied to the monitor.

즉, 사람이 모니터 앞에 앉아 작업을 하면 인체의 열이 적외선 센서(10)에서 감지되고, 이 감지신호가 증폭된 후 차단수단의 트랜지스터(Q1)를 온시키므로써 수직동기신호를 차단하기 위해 트랜지스터(Q2)와 수평동기신호를 차단하기 위한 트랜지스터(Q3)를 오프시키게 된다. 따라서 pc 본체로부터 입력되는 수직동기 신호(Vsync.in)와 수평동기신호(Hsync.in)가 저항(R9)(R12)을 거쳐 도시되지 않은 모니터의 마이콤측으로 각각 출력(Vsync.out, Hsync.out)되고, 이에 따라 모니터는 정상모드로 동작하게 된다.That is, when a person sits in front of the monitor, the heat of the human body is detected by the infrared sensor 10, and after the detection signal is amplified, the transistor Q1 of the blocking means is turned on to block the vertical synchronization signal. The transistor Q3 for blocking the horizontal synchronization signal with Q2) is turned off. Therefore, the vertical synchronization signal (Vsync.in) and the horizontal synchronization signal (Hsync.in) input from the main body of the PC are output through the resistors R9 and R12 to the micom side of the monitor (not shown) (Vsync.out and Hsync.out). As a result, the monitor operates in the normal mode.

만일, 사람이 모니터 앞에 있지 않아 적외선 센서(10)에서 인체의 열을 감지하지 못하면 트랜지스터(Ql)가 오프되므로 전원(Vcc)이 저항(R8)을 통하여 트랜지스터(Q2)의 베이스에 인가되어 트랜기스터(Q2)가 온된다. 이때 트랜지스터(Q2)의 베이스에 큰 용량의 콘덴서(C3)가 연결되어 있으므로, 트랜지스터(Ql)가 온된후 어느 정도 시간이 경과되어 콘덴서(C3)의 충전전압이 상승될 때 트랜지스터(Q2)가 온되게 된다.If a person is not in front of the monitor and the infrared sensor 10 does not detect the heat of the human body, since the transistor Ql is turned off, the power supply Vcc is applied to the base of the transistor Q2 through the resistor R8 and the transformer The stir Q2 is turned on. At this time, since the capacitor C3 having a large capacitance is connected to the base of the transistor Q2, when the charging voltage of the capacitor C3 rises for some time after the transistor Ql is turned on, the transistor Q2 is turned on. Will be.

따라서, pc 본체로부터 입력되는 수식동기신호(Vsync.in)가 트랜지스터(Q2)를 통하여 접지측으로 빠지므로 저항(R9)을 통해 모니터로 인가되는 수직동기신호(Vsync.out)가 차단된다. 이에 따라 모니터는 수직동기 신호가 차단되고, 수평동기신호만 입력되므로 절전이 가능한 서스팬드모드(SUSPEND MODE)로 동작하게 된다.Therefore, since the modified synchronous signal Vsync.in input from the pc main body is pulled out to the ground side through the transistor Q2, the vertical synchronous signal Vsync.out applied to the monitor through the resistor R9 is blocked. Accordingly, the monitor is operated in the suspend mode (SUSPEND MODE) which can save power because the vertical synchronization signal is blocked and only the horizontal synchronization signal is input.

여기서, 트랜지스터(Q2)의 베이스단에 연결된 콘덴서(C3)의 작용은 사람이 자리를 비운 후 일정시간이 지나 콘덴서(C3)에 충전이 끝나면 트랜지스터(Q2)를 온시키기 위한 것으로, 사람이 잠시 자리를 비운 것인지 혹은 오랫동안 자리를 비운 것인지를 확인하기 위한 것이다.Here, the action of the capacitor C3 connected to the base end of the transistor Q2 is to turn on the transistor Q2 when the charging of the capacitor C3 is over after a certain time after the person leaves the room. It is to check whether it is empty or it has been away for a long time.

이어서, 수직동기신호를 차단시키기 위한 트랜지스터(Q2)가 온되면 콘덴서(C4)의 충전시간이 경과된 후 수평동기신호를 차단시키기 위한 트랜지스터(Q3)도 온된다. 트랜지스터(Q3)를 온되면 pc 본체로부터 입력되는 수평동기신호(Hsync.in)가 트랜지스터(Q3)를 통해 접지측으로 빠져 모니터로 인가되는 수평동기신호(Hsync.out)가 차단된다. 따라서 pc 본체로부터 모니터로 입력되는 수직동기신호와 수평동기신호가 모두 차단되므로, 모니터는 앞서 설명한 바와 같이, 오프모드(OFF MODE)로 동작하여 절전이 가능하게 된다.Subsequently, when the transistor Q2 for blocking the vertical synchronization signal is turned on, the transistor Q3 for blocking the horizontal synchronization signal is also turned on after the charging time of the capacitor C4 has elapsed. When the transistor Q3 is turned on, the horizontal synchronous signal Hsync.in input from the pc body is pulled out to the ground side through the transistor Q3 and the horizontal synchronous signal Hsync.out applied to the monitor is blocked. Therefore, since both the vertical synchronous signal and the horizontal synchronous signal inputted from the pc main body to the monitor are blocked, the monitor operates in the OFF mode as described above to enable power saving.

여기서, 콘덴서(C4)의 작용도 상기 콘덴서(C3)와 마찬가지로 사람이 자리를 비운 후 일정시간이 지나 콘덴서(C4)가 충전되면 트랜지스터(Q3)를 온시키기 위한 것으로 사람이 어느 정도 오랜동안 자리를 비우면 '서스팬드모드'를 거쳐 '오프모드'로 진행하여 점차 절전의 강도를 증가시키기 위한 것이다.Here, the action of the condenser C4 is also to turn on the transistor Q3 when the capacitor C4 is charged after a certain period of time after the person is away, as in the case of the capacitor C3. If it is empty, it goes through the 'suspend mode' and goes to the 'off mode' to gradually increase the intensity of power saving.

즉, 모니터를 사용하던 사람이 자리를 비우면 일정한 시간이 지난 후 먼저 수직동기신호가 차단되어 모니터가 서스팬드모드로 동작하다가, 이와 같이 수직동기신호가 차단된 후 다시 일정시간이 지난 후에 수평 동기신호가 차단되어 수직동기신호와 수평동기신호가 완전히 차단되면 모니터가 오프모드로 동작하게 된다.In other words, if the person who is using the monitor goes away, the vertical synchronous signal is cut off after a certain time, and the monitor operates in the suspend mode. After the vertical synchronous signal is cut off, the horizontal synchronous signal passes again. If the signal is blocked and the vertical and horizontal sync signals are completely blocked, the monitor will operate in the off mode.

이렇게 수직동기신호와 수평동기신호가 차단되어 모니터가 오프된 상태에서 모니터앞에 사람이 앉아 다시 사람이 인식되면 제1증폭수단(20)과 제2증폭수단(30)를 거쳐 스위칭수단(40)의 트랜지스터(Ql)가 다시 온되므로 콘덴서(C3)의 전압이 트랜지스터(Ql)의 에미터를 통해 방전되어 트랜지스터(Q2)가 오프된다.When the vertical sync signal and the horizontal sync signal are blocked and a person sits in front of the monitor in a state where the monitor is turned off, the person is recognized again, and then the switching means 40 of the switching means 40 passes through the first amplifying means 20 and the second amplifying means 30. Since the transistor Ql is turned on again, the voltage of the capacitor C3 is discharged through the emitter of the transistor Ql so that the transistor Q2 is turned off.

또한, 트랜지스터(Q2)가 오프되면 콘덴서(C4)의 전압도 저항(R10)을 통하여 즉시 방전되어 트랜지스터(Q3)가 오프되므로, 이 본체로부터 입력된 수직동기신호(Vsync)와 수평동기신호(Hsync)가 차단되지 않고, 모니터로 인가되어 모니터가 정상적(온모드)으로 동작하게 되는 것이다.In addition, when the transistor Q2 is turned off, the voltage of the capacitor C4 is also immediately discharged through the resistor R10 and the transistor Q3 is turned off. Therefore, the vertical synchronous signal Vsync and the horizontal synchronous signal Hsync input from the main body are turned off. ) Is not blocked, and it is applied to the monitor so that the monitor operates normally (on mode).

[발명의 효과][Effects of the Invention]

이상에서 설명한 바와 같이, 본 발명은 모니터에 사람으로부터 나오는 열을 감지하는 적외선 센서를 설치하여 사람의 감지 여부에 따라 pc 본체로부터 입력되는 수직동기신호와 수평동기신호를 모니터측으로 차단시키거나 연결시키도록 하므로써 pc 본체에 절전기능이 없더라도 모니터가 절전기능을 수행할 수 있는 효과가 있다.As described above, the present invention is to install an infrared sensor to detect the heat from the person on the monitor to block or connect the vertical synchronous signal and the horizontal synchronous signal input from the PC main body to the monitor side depending on whether the person detects Thus, even if the PC does not have a power saving function, the monitor can perform a power saving function.

또한 본 발명이 적용된 모니터가 절전기능이 있는 pc 본체에 연결된 경우에는 본 발명에 따른 절전기술과 pc 본체의 절전기술을 복합하여 사용할 수 있는 효과가 있다.In addition, when the monitor to which the present invention is applied is connected to a PC main body having a power saving function, there is an effect that the power saving technology of the present invention and the power saving technology of the main body of the pc can be used in combination.

Claims (3)

컴퓨터(pc) 본체로부터 입력되는 수직동기신호와 수평동기신호에 따라 절전모드를 판별하여 수평동기 신호와 수직동기신호가 모두 있으면 정상모드로 동작하고, 수평동기신호는 있으나 수직동기신호만 차단되면 서스팬드모드로 동작하며, 수직동기신호와 수평동기신호가 모두 차단되면 오프모드로 동작하도록 된 모니터에 있어서, 인체의 열에 의해 사람을 감지하는 적외선 센서(10)와; 상기 적외선 센서에 의해 감지된 신호를 소정 레벨로 증폭시키는 제1증폭수단(20); 상기 제1증폭수단의 출력을 재차 증폭시키는 제2증폭수단(30); 상기 제2증폭수단의 출력에 따라 온/오프되는 스위칭수단(40); 정상모드에서 서스팬드모드로의 이행시간을 설정하기 위하여 상기 스위칭수단이 오프되면 소정 시간동안 충전되어 소정의 충전전압을 제공하는 제1충전수단(C3); 상기 제1충전수단이 소정의 충전전압을 제공하면 온되어 상기 수직동기신호를 차단시키는 수직동기신호 차단 트랜지스터(Q2); 서스팬드모드에서 오프모드로의 이행시간을 설정하기 위하여 상기 수직동기신호 차단 트랜지스터(Q2)가 온되면 소정 시간동안 충전되어 소정의 충전전압을 제공하는 제2충전수단(C4); 및 상기 제2충전수단이 소정의 충전전압을 제공하면 온되어 상기 수평동기신호를 차단시키는 수평동기신호 차단 트랜지스터(Q3)가 구비된 것을 특징으로 하는 적외선 센서를 이용한 절전모니터.Power saving mode is determined according to the vertical synchronous signal and horizontal synchronous signal input from the computer (pc) main body. If there is both a horizontal synchronous signal and a vertical synchronous signal, it operates in the normal mode and there is a horizontal synchronous signal but only the vertical synchronous signal is blocked. A monitor operating in the span mode and operating in the off mode when both the vertical synchronization signal and the horizontal synchronization signal are blocked, the monitor comprising: an infrared sensor 10 for detecting a person by heat of a human body; First amplifying means (20) for amplifying the signal sensed by the infrared sensor to a predetermined level; Second amplifying means (30) for amplifying the output of the first amplifying means again; Switching means (40) turned on / off in accordance with the output of said second amplifying means; First charging means (C3) for charging for a predetermined time when the switching means is turned off to set a transition time from the normal mode to the suspend mode; A vertical synchronous signal blocking transistor (Q2) which is turned on when the first charging means provides a predetermined charging voltage to block the vertical synchronous signal; Second charging means (C4) for charging for a predetermined time when the vertical synchronous signal blocking transistor (Q2) is turned on to set a transition time from the suspend mode to the off mode; And a horizontal synchronous signal blocking transistor (Q3) which is turned on when the second charging means provides a predetermined charging voltage to block the horizontal synchronous signal. 제1항에 있어서, 상기 제1증폭수단으로는, 반전단자에 증폭율을 조절하기 위한 가변저항과 저항이 접속된 op 앰프를 포함하는 것을 특징으로 하는 적의선 센서를 이용한 절전모니터.2. The power saving monitor according to claim 1, wherein the first amplifying means includes an op amp connected to a variable resistor and a resistor for controlling an amplification factor in an inverting terminal. 제1항에 있어서, 상기 스위칭수단이, 트랜지스터(Ql)인 것을 특징으로 하는 적외선 센서를 이용한 절전모니터.The power saving monitor using an infrared sensor according to claim 1, wherein the switching means is a transistor (Ql).
KR1019940011890A 1994-05-30 1994-05-30 Green monitor using infrared sensor KR970010636B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102051949B1 (en) * 2019-06-25 2020-01-08 (주)엠텍정보 A controling method of monitor apparatus for saving the power by controling Sync signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102051949B1 (en) * 2019-06-25 2020-01-08 (주)엠텍정보 A controling method of monitor apparatus for saving the power by controling Sync signals

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