• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a display control device in a showcase, and in particular, an operation detecting unit for generating a predetermined detection signal in accordance with an operating state inside the showcase; A plurality of signal level converting units converting and outputting levels of signals generated by the operation detecting unit; An input latch unit configured to latch a signal transmitted from the signal level converter in response to a first enable signal input from an external device; An output latch unit for latching an input signal in response to a second enable signal input from the outside; A display unit which displays an operating state inside the showcase according to the signal latched by the output latch unit; And receiving an output signal from the input latch unit by enabling the input latch unit by the first enable signal, and providing an output signal based on the output signal of the input latch unit to the output latch unit. And a control unit for generating the second enable signal for enabling the output latch unit. Therefore, in the present invention, by detecting the operation state in the showcase under the control of the control unit to display on the display unit, there is an effect that the operator can easily know the operation state and malfunction of the showcase.
    公开号:KR19990034843A
    申请号:KR1019970056542
    申请日:1997-10-30
    公开日:1999-05-15
    发明作者:이상태
    申请人:최진호；삼성광주전자 주식회사；
    IPC主号:
    专利说明:

    Display control device in showcase
    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control apparatus in a showcase, and more particularly, to a display control apparatus in a showcase which monitors an operating state inside a showcase under the control of a control unit and displays the monitored result on the display unit.
    SUMMARY OF THE INVENTION An object of the present invention is to provide a display control apparatus in a showcase capable of providing information on an operating state in a showcase by monitoring the operating state inside the showcase by a plurality of sensors and lighting the corresponding light emitting diodes according to the monitored result. To provide.
    In order to achieve the above object, the apparatus of the present invention comprises an operation detecting unit for generating a predetermined detection signal in accordance with the operating state inside the showcase; A plurality of signal level converting units converting and outputting levels of signals generated by the operation detecting unit; An input latch unit configured to latch a signal transmitted from the signal level converter in response to a first enable signal input from an external device; An output latch unit for latching an input signal in response to a second enable signal input from the outside; A display unit which displays an operating state inside the showcase according to the signal latched by the output latch unit; And receiving an output signal from the input latch unit by enabling the input latch unit by the first enable signal, and providing an output signal based on the output signal of the input latch unit to the output latch unit. And a control unit for generating the second enable signal for enabling the output latch unit.
    1 is a block diagram illustrating a display control device according to an embodiment of the present invention.
    2 is a view for explaining a display panel according to an embodiment of the present invention;
    Explanation of symbols on the main parts of the drawings
    10; Operation sensing units SL1 to SLn; Signal level converter
    20; An input latch unit 40; Output latch part
    60; A display unit 80; Control
    100; Display panel
    Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
    1 is a block diagram illustrating a display control apparatus according to an exemplary embodiment of the present invention. As shown, an operation sensing unit 10 generating a predetermined detection signal according to an operating state inside a showcase, and an operation sensing unit Signal level converters SL1 to SLn for converting and outputting the level of the signal generated by the unit 10, and transmitted from the signal level converters SL1 to SLn in response to the first enable signal input from the outside. In accordance with an input latch unit 20 for latching a signal, an output latch unit 40 for latching an input signal in response to a second enable signal input externally, and a signal latched in the output latch unit 40. The display unit 60 which displays the operating state inside the showcase and the input latch unit 20 receive the output signal from the input latch unit 20 by enabling the input latch unit 20 by the first enable signal. Outputs an output signal based on the output signal of the unit 20 Portion provided at 40, and an output latch portion in the second control unit 80 for generating an enable signal to the enable (40).
    Referring to the overall operation of the preferred embodiment configured as described above are as follows.
    Referring to FIG. 1, according to an exemplary embodiment of the present invention, the operation detecting unit 10 includes a plurality of sensors S1 to Sn, each of which is supplied with a first power supply voltage V1, according to an operation state of a showcase. Generates a predetermined detection signal that is a signal. The plurality of sensors S1 to Sn include a temperature sensor for sensing a temperature inside the showcase, a sensor for detecting a defrost state, and a sensor for detecting an operation error.
    Each of the plurality of signal level converters SL1 to SLn includes a first resistor R1, a second resistor R2, and a port coupler D1 and Q1 to operate the sensing unit 10 and the input latch unit 40. Coupled between the input ports P1 to Pn, and optically insulated between the operation sensing unit 10 and the input latch unit 40, and detecting the level of the sensing signal generated by each sensor of the operation sensing unit 10. Level, that is, converted to TTL (Transistor-Transistor Logic) level and outputted.
    The input latch unit 20 is activated at the falling edge of the first enable signal provided by the control unit 80 to latch output signals from the plurality of signal level converting units SL1 to SLn, and the latched signals are data. The control unit 80 is provided to the controller 80 via the bus 21. The input latch unit 20 is activated when the first enable signal is at a logic level "low".
    The controller 80, i.e., the microcomputer, which receives the latch signal from the input latch unit 20, analyzes the latch signal to determine an operating state inside the showcase, and generates and outputs an output signal according to the determined result. The latch portion 40 is provided. In addition, the controller 80 generates a second enable signal to the output latch 40.
    Then, the output latch unit 40 is activated at the falling edge of the second enable signal to receive the output signal from the control unit 80 through the data bus 81, and receives the current state of the output latch unit 40. Change to latch. In the embodiment of the present invention, the output latch unit 40 is composed of D flip-flops, and a method of directly driving the display unit 80 is used for the D flip-flops.
    On the other hand, the display unit 60 includes a plurality of light emitting diodes L1 to Ln and a plurality of resistors R1 to Rn coupled in series to the plurality of light emitting diodes L1 to Ln, and output ports Q1 of the output latch unit 40. Qn) and the second power supply voltage V2 are coupled in parallel. Since a plurality of light emitting diodes L1 to Ln form a signal path according to a signal latched to the output latch unit 40, the light emitting diodes selectively emit light. In particular, in the embodiment of the present invention, the plurality of light emitting diodes (L1 to Ln) are turned on in the external data write (/ WR) cycle of the controller 80.
    Referring to FIG. 2, the display panel 100 is installed at a position easy for an operator to recognize on the front of the showcase, and the conventional temperature display 101 and the double showcase are operated on the display panel 100. A plurality of light emitting diodes 102 are provided for displaying a state, a defrost state and an alarm according to a malfunction.
    Therefore, in the present invention as described above, by detecting the operation state in the showcase under the control of the control unit to display on the display unit, there is an effect that the operator can easily know the operation state and operation failure of the showcase.
    权利要求:
    Claims (6)
    [1" claim-type="Currently amended] An operation detecting unit generating a predetermined detection signal according to an operation state inside the showcase;
    A plurality of signal level converting units converting and outputting levels of signals generated by the operation detecting unit;
    An input latch unit configured to latch a signal transmitted from the signal level converter in response to a first enable signal input from an external device;
    An output latch unit for latching an input signal in response to a second enable signal input from the outside;
    A display unit which displays an operating state inside the showcase according to the signal latched by the output latch unit; And
    In response to enabling the input latch part by the first enable signal, an output signal from the input latch part is received, an output signal based on an output signal of the input latch part is provided to the output latch part, and the output is performed. And a control unit for generating the second enable signal for enabling the latch unit.
    [2" claim-type="Currently amended] According to claim 1, The operation detection unit;
    And a plurality of sensors each of which is supplied with a first power supply voltage and generates a predetermined detection signal in accordance with the operation state of the showcase.
    [3" claim-type="Currently amended] 2. The apparatus of claim 1, wherein the plurality of signal level converters;
    It is composed of a first resistor, a second resistor and a port coupler coupled between the operation sensing unit and the input port of the input latch unit, and optically insulates the operation sensing unit and the input latch unit, the sensing from the operation sensing unit A display control device in a showcase, characterized in that the signal level is converted to a transistor level and output.
    [4" claim-type="Currently amended] The method of claim 1, wherein the input latch unit;
    A display control device in a showcase, characterized by providing a latched signal to a control unit via a data bus.
    [5" claim-type="Currently amended] According to claim 1, The output unit;
    Display control device in a showcase, characterized in that receiving the output signal from the control unit via a data bus.
    [6" claim-type="Currently amended] The display apparatus of claim 1, wherein the display unit;
    A plurality of light emitting diodes and a plurality of resistors coupled in series to the plurality of light emitting diodes are coupled in parallel between the output port of the output latch portion and the second power supply voltage.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-10-30|Application filed by 최진호, 삼성광주전자 주식회사
    1997-10-30|Priority to KR1019970056542A
    1999-05-15|Publication of KR19990034843A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970056542A|KR19990034843A|1997-10-30|1997-10-30|Display control device in showcase|
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