KR102310632B1 - An electric sign for high speed on automatic switching power control - Google Patents

Abstract

The present invention relates to a high-speed automatic switching power control electronic display board. The present invention includes: an image signal source which retrieves image data stored in a memory and transmits it to an LED module of an LED electronic display board; a GSP control unit which receives temperature, humidity, door opening and closing, fire smoke detection, and collected status data information of a fan driving inside an LED module unit of a light plate and operates to be detected by an MCU; an ATS control unit for receiving the status information of the LED module and a module dot to transmit to the MCU of the GSP control unit; a power ATS control unit which can check temperature, humidity, door opening/closing, fire smoke detection, fan driving, and transmitted status data information inside the LED module unit of the electronic display board through the MCU; and the LED module on which image data is displayed. Therefore, it is possible to check the status of the electronic display board and to quickly respond to obstacles by checking a current status and a pre-predicted defective status from a distance.

Description

An electric sign for high speed on automatic switching power control

The present invention relates to a high-speed automatic switching power control signboard, and more specifically, it is equipped with a dual-type SMPS power supply to detect in advance the obstacles that occur during the signboard operation, and to automatically High-speed automatic switching power that can check the status of the electronic sign board by checking the current status and pre-predicted faulty status of the electric sign board remotely by checking the display operation and power consumption in real time with a stable power supply It relates to the control sign board.

In addition, the present invention is a dual-type SMPS power supply equipped with P-ATS Control, so that when a failure occurs while the main power supply device is in use, the standby power supply device is automatically operated, thereby stabilizing the operation of the electronic sign board and the internal Receiver Interface device. High-speed automatic switching that collects status information necessary for the operation of the electronic sign board, such as temperature, humidity, door open/close, fire smoke detection, and other fan operation, is transmitted from the MCU in real time, and can be checked and taken action inside the LED module unit It is related to the electric power control sign board.

LED (Light Emitting Diode) refers to a light emitting diode, which is a semiconductor device that emits light, and is widely used in various colors such as red, green, blue, and yellow in various electronic products and electronic display panels such as instrument panels.

Among them, the LED signboard arranges a plurality of LEDs in a matrix form, and the plurality of LEDs arranged in a matrix form form pixels for displaying an image, so that an image can be displayed. These LED signboards are installed and used in various forms outside or inside buildings to deliver advertisements or various types of information.

In general, LED signage receives video signals from AV devices such as DVDs, VCRs, and broadcasting equipment, which are video media, and displays images by converting them into signals appropriate for the signboard. LEDs or small fluorescent tubes are used in a matrix They are arranged in a form to display information such as various characters and pictures.

LED signage is a display device that has excellent resolution and implements color images of various colors, and is installed in various forms on the exterior walls or inside of buildings for advertisements and broadcasts and is used to implement images or videos. The LED signage has a unit pixel composed of LEDs (Light Emitting Diodes) that emit red, green, and blue as a basic component, and the pixels are arranged in a horizontal and vertical matrix to form a single LED panel or LED board. .

As shown in FIG. 1 , a general electronic sign board receives an image signal transmitted to an input signal source such as a PC from the MCU (Main Controller Unit) and transmits it to the LED module through the SCU (Sub Controller Unit) to be displayed.

At this time, the power supplied to the LED module converts the AC power provided from the distribution board into DC in the SMPS power supply and is transmitted directly to the LED module. There is a limit to the method that can control the power provided to it. In other words, the reality is that the SMPS of the power supply device of the signboard is used as a simple device that simply supplies power to the signboard.

Therefore, when it is necessary to replace the LED module and LED lamp due to a defective LED module or a defective LED lamp while using the LED signboard in operation, the prompt recognition of defective and replacement LED lamps is limited at the site, so quick action is taken. The reality is that there are limitations.

Therefore, the present applicant can remotely monitor the status of a specific operating signboard and LED module and check the status of the efficiency, lifespan, replacement cycle, etc. of the power supply in real time, and propose a stable power supply management and efficient operation of the signboard want to

1. Power saving control system and method for LED electronic sign (Patent Registration No. 10-1385264) 2. Electric sign for high efficient power saving and energy control method (Patent Registration No. 10-1306794)

The present invention is to solve the above problems, and by providing a dual type SMPS power supply equipped with P-ATS Control, when a failure occurs while the main power supply device is in use, the standby power supply device is automatically driven to ensure stable operation of the electronic signboard and internal Through the Receiver Interface device, the status information required for the operation of the electronic signboard, such as the temperature, humidity, door open/closed, fire smoke detection, and other fan operation, inside the LED module unit of the signboard, is collected and transmitted from the MCU in real time for confirmation and action This is to provide a high-speed automatic switching power control signboard that can do this.

In addition, the present invention is equipped with a dual-type SMPS power supply to detect in advance the obstacles that occur during the operation of the electric signboard, and when a defect of the SMPS occurs during the operation of the electric signboard, it is possible to automatically switch over and supply power, so that the electric signboard can be supplied with stable power. The purpose of this is to provide a high-speed automatic switching power control sign that can check the display operation and power consumption in real time to check the status of the signboard remotely by checking the current status and the pre-predicted defective state.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the high-speed automatic switching power control signboard according to an embodiment of the present invention is source information for supplying a video signal to be displayed on the LED module of the signboard, and includes a video medium of DVD, HDMI, DP or VCR. an image signal source for reproducing or retrieving image data stored in memory and transmitting it to the LED module of the LED signboard; In order to supply high-quality power to the LED module of the electronic sign board, it is equipped with dual MCUs to control the power ATS control unit. In conjunction with P-ATS Control, when one part of the redundant main power supply (SMPS) fails during use, it is automatically switched to drive the standby power supply (SMPS) to stabilize error data through load share control. Receives collected status data information of temperature, humidity, door opening/closing, fire smoke detection, and fan operation inside the LED module unit of the electronic display through the operation of the sensor receiver controller so that power is supplied to the LED module to provide stable LED display operation. a GSP control unit that operates to be grasped by the MCU 240; The image data transmitted from the video signal source is converted to the displayed image data by the signal specified in the ITS (integraion time setting) of the GSP control unit, and the image data value whose gamma value is determined by the histogram is grayscaled in the GSP and the transmitted image is displayed on the LED module P-ATS (P-ATS ( Power Automatic Transform Switch) to check the environment of the LED module dot and check the current display, so that the image display frame rate and the image flicker that may occur in the bit change of the image data do not appear, ATS control by driving ITS ATS control unit for receiving the status information of the corresponding LED module and module dot according to the GSP control unit MCU; The load share control stabilizes the error data caused by the phase change of the power or the peak value due to an unspecified spark that may occur during quick switching between the main SMPS and the redundant power supply unit, and the power is supplied to the LED module at high speed. In order to achieve stable image expression with the LED module of the electronic sign board, the collected status data information of the temperature, humidity, door opening/closing, fire smoke detection, and fan operation inside the LED module unit of the sign board is transmitted to the MCU according to the operation of the sensor receiver controller. a Power ATS control unit to remotely check the corresponding status; and a unit display module composed of a plurality of LEDs arranged in n×m pixels is arranged in a matrix form to form a screen, and receives power supplied from the Power ATS control unit with respect to an image signal input through an image input device. and the LED module for displaying image data to which luminance correction data is applied in consideration of the luminance of pixels or luminance values of the electric sign board.

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The high-speed automatic switching power control signboard according to an embodiment of the present invention is equipped with a dual type SMPS power supply to detect obstacles that occur during the signboard operation in advance, and automatically when a failure of the SMPS power supply device occurs during the signboard operation It is possible to supply power by switching to a power supply, so the display operation and power consumption of the electric sign board are grasped in real time with a stable power supply. Provides an effect that can respond to elements.

In addition, the high-speed automatic switching power control signboard according to the embodiment of the present invention confirms the life cycle of the dual power supply unit provided in the MCU of the GSP control unit, and the power supply according to the temperature, humidity, fan driving, etc. It provides the effect of monitoring the status of the power supply for the smooth operation of the billboard through pre-inspection on efficiency, lifespan, and replacement cycle.

In addition, the high-speed automatic switching power control signboard according to the embodiment of the present invention is composed of P-ATS Control, so that the dual-type SMPS power supply automatically drives the standby power supply when a failure occurs while the main power supply is in use. In order to ensure stable operation of the electric sign board and the internal receiver interface device, it collects status information necessary for the operation of the sign board, such as temperature, humidity, door open/close, fire smoke detection, and other fan operation, in real time through the internal receiver interface device. It can be transmitted from the MCU to ensure seamless advertising board operation through a fast switching procedure.

In addition, the high-speed automatic switching power control signboard according to the embodiment of the present invention has a load share control in the Power ATS control unit, so that the peak value of an unspecified spark or the phase change of the power source during rapid switching between the main power supply and the standby power supply It is possible to provide stable power supply by supplying power at high speed in any environment by internally implementing the error data generated by the error data and stabilizing it in the circuit.

In addition, the high-speed automatic switching power control signboard according to an embodiment of the present invention is generated by a peak value or a phase change of power according to an unspecified spark that may occur during rapid switching between power supplies redundant to the main SMPS and the spare SMPS. In order to stabilize error data in the load share control, to ensure that power is supplied at high speed, and to display a stable image with the LED module of the electric sign, the status information of the LED module unit of the electric sign is collected according to the receiver interface operation through the sensor receiver controller and stable operation of the sign board can promote

1 is an internal configuration diagram of a conventional general LED signboard
2 is a block diagram of a high-speed automatic switching power control electronic board according to the present invention;
3 is a detailed internal configuration diagram of a high-speed automatic switching power control electronic board according to the present invention;
4 is a detailed configuration diagram of the GSP control unit of the high-speed automatic switching power control electronic board according to FIG.
5 is a block diagram showing the detailed configuration of the gain control of the GSP control unit of FIG.
6 is a detailed configuration diagram of the ATS control unit of the high-speed automatic switching power control electronic board according to FIG.
7 is a detailed configuration diagram of the Power ATS control unit of the high-speed automatic switching power control electronic board according to FIG.
8 is an internal configuration diagram of an ATS of the Power ATS control unit according to FIG. 7;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, detailed description of preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

In the present specification, when one component 'transmits' data or signal to another component, the component may directly transmit the data or signal to another component, and through at least one other component This means that data or signals can be transmitted to other components.

Figure 2 shows the configuration of the high-speed automatic switching power control signboard according to the present invention. The high-speed automatic switching power control signboard according to the present invention is largely composed of an image signal source 100 , a GSP control unit 200 , an ATS control unit 300 , a Power ATS control unit 400 , and an LED module 500 .

Hereinafter, the detailed configuration and operation of the high-speed automatic switching power control sign board with reference to FIG. 2 will be described. First, the video signal source 100 supplies the video signal to be displayed on the LED module 500 of the sign board. Source information As such, it may be a device that reproduces an image medium such as DVD, HDMI, DP or VCR, or a computer that retrieves image data stored in a memory and transmits it to the LED module 500 of the LED signboard, but is not limited thereto.

The GSP control unit 200 is equipped with dual P-ATS Control in order to supply good quality power to the LED module 500 of the electric sign board, so that one part of the main power supply unit (SMPS) is automatically switched when a defect occurs during use. The temperature, humidity, door opening/closing, It operates so that the MCU 240 receives the collected state data information of fire smoke detection and fan driving.

That is, the GSP control unit 200 checks whether the module is defective through the ATS automatic switching function according to the internal ITS timing, automatically adjusts the image contrast ratio of night and day, and the electronic display required for temperature control and image display calibration. It operates to enable drive interlocking control, and according to the operation of the dual SMPS 410 of the Power ATS control unit 400, the temperature, humidity inside the LED module 500 unit of the electric sign board continuously through automatic switching according to the failure of the power supply device , to receive and control the collected status data information of door opening and closing, fire smoke detection, and fan operation.

The ATS control unit 300 switches the image data transmitted from the image signal source 100 to the displayed image data by switching the signal specified in ITS (Integraion Time Setting) to the image data value whose gamma value is determined by the histogram in the GSP 220. Image flicker phenomenon that may occur in the image display frame rate and bit change of image data to check the environment of the LED module dot so that the grayscaled image is stably displayed with the LED module 500 and to confirm the current display In order to prevent this from appearing, the ATS driven by the ITS receives the status information of the corresponding LED module and module dot according to the control and transmits it to the MCU 240 to be controlled by the GSP control unit 200 .

In more detail, the ATS control unit 300 is configured to stably transmit image data to the LED module 500 between the main power supply unit (SMPS) 410a and the standby power supply unit (SMPS) 410b of the Power ATS control unit 400 . In connection with the P-ATS (Power Automatic Transform Switch) 420, the environment of the LED module 500 dots is checked, Receive status information of the corresponding LED module and module dot according to the control of the ATS by ITS drive so that the image flicker does not appear in the frame rate and bit change of the image data by checking the current display and transmits it to the MCU 240 .

The Power ATS control unit 400 stabilizes the error data generated by the peak value of an unspecified spark or the phase change of the power source during fast switching between the main power supply unit 410a and the spare power supply unit 410b in the load share control to stabilize the high-speed to supply power to the LED module 500 .

That is, the Power ATS control unit 400 is the main SMPS (410a), the spare SMPS (410b), the power supply unit 410, which may be rapidly switched between the power supply unit 410, a peak value or power phase change according to an unspecified spark that may occur. In order to stabilize the error data that occurs in the load share control and supply high-speed power to the LED module 500 of the signboard for stable image expression, the LED module 500 of the signboard according to the receiver interface operation through the sensor receiver controller inside the unit The temperature, humidity, door opening and closing, fire smoke detection, and fan driving are collected and configured so that the transmitted state data information can be checked remotely through the MCU 240 .

The LED signboard 500 has a unit display module composed of n×m pixels and a plurality of LEDs arranged in a matrix form to form a screen, and the Power ATS control unit ( 400), the luminance correction data is applied in consideration of the luminance of pixels or brightness values of the electronic signboard, and the luminance is corrected for the input image data through synthesizing the image data stream with the luminance correction data in real time. displayed image data.

Figure 3 shows the detailed internal configuration of the high-speed automatic switching power control signboard according to the present invention. Looking at the operating state of the high-speed automatic switching power control signboard with reference to the accompanying Figures 2 to 3, first, the LED module In order to display the image information transmitted through the image signal source 100 to the 500, the ITS (Integration Time Setting) 210 of the GSP controller 200 flickers according to the input period according to the daytime or nighttime illumination. The detected Flick frequency and the adjusted integration time of (Flicker) occurrence are set to be transmitted to the LED module 500 of the electric sign board through the SCU 340 of the ATS control unit 300 .

That is, the ITS 210 displays a high-quality display image of the dot output value of the LED module in the image output section and the flicker reduced through grayscale control through the Auto Flicker Detection 312 of the SCU 340 of the ATS controller 300 . In order to provide this, a flicker-free image is generated by setting the frame frequency of a high-output image by adjusting the refresh rate for a low grayscale.

The GSP control unit 200 can check the module defect of the electronic sign board through the ATS automatic switching function according to the internal ITS timing, automatically adjust the image contrast ratio of night and day, and drive the electronic sign board necessary for temperature control and image display calibration It operates to enable interlocking control, and the power supply of the Power ATS control unit 400 is configured as a dual to check whether there is an abnormality in the power supply. Module 500 makes it possible to collect the collected state data information of the unit internal temperature, humidity, door opening and closing, fire smoke detection, and fan driving.

That is, the MCU 240 of the GSP control unit 200 is provided with dual P-ATS Control and the SMPS 410 in order to supply quality power by interworking with the P-ATS Control 420 to provide a main power supply ( When a failure occurs during operation of 410a), it is automatically switched to drive the spare power supply device 410b to supply power to the LED module 500 to provide stable operation of the electric sign board, which is connected to the sensor receiver controller to drive operation In accordance with the LED module 500 of the electronic signboard, the unit receives the collected state data information of temperature, humidity, door opening and closing, fire smoke detection, and fan driving and operates to be grasped by the MCU 240 .

On the other hand, the MCU (Main Control Unit) 240 is provided as a dual load share control for error data generated by a change in the phase of the peak value or power according to the changeover of the power supply device 410 of the Power ATS control unit 400 It operates to receive and grasp the collected temperature, humidity, door opening/closing, fire detection, and fan driving status data of the LED module 500 from the two MCUs 240 so that power is supplied by stabilizing it through 430 .

4 is a detailed configuration diagram of the GSP control unit 200 of the high-speed automatic switching power control electronic board according to FIG. 3, and FIG. 5 is a block diagram showing the detailed configuration of the gain control of the GSP control unit of FIG. Referring to the detailed configuration and operation of the GSP control unit with reference to FIGS. 2 to 5 , the GSP control unit 200 includes dual P-ATS Controls in order to supply stable power, so that the main power supply unit 410a fails during operation. When this occurs, it is automatically switched to drive the spare power supply device 410b to supply power to the LED module 500 to provide the operation of the electronic sign board, which is the LED module ( 500) It operates so that the MCU 240 receives the collected state data information of temperature, humidity, door opening and closing, fire smoke detection, and fan driving in the unit.

That is, the GSP control unit 200 can check the module defect of the electric sign board through the ATS automatic switching function according to the internal ITS timing, automatically adjust the image contrast ratio of night and day, and the electric sign board necessary for temperature control and image display calibration It operates to enable drive interlocking control, and the power supply of the Power ATS control unit 400 is configured as a dual to check whether there is an abnormality in the power supply. The LED module 500 enables the collection of the collected state data information of the unit's internal temperature, humidity, door opening and closing, fire smoke detection, and fan driving.

In more detail, the GSP control unit 200 detects the flick frequency by checking whether the integration time is an integer multiple of the input period for the image generated by the Auto Flicker Detection (312) for the image signal input from the ITS 210 and With respect to the data whose centering cycle time is adjusted according to the adjusted integration time, the image data value whose gamma value is determined by the histogram in the GSP 220 is displayed by switching the gray-scaled image by scanning. The image data without image noise is displayed on the LED module 500 even in high-speed image transmission control by normalizing and processing it with a histogram of luminance and transmitting the information from the MCU 240 to the ATS control unit 300, so that the operation of the electronic sign board is stable. make it this

The image information transmitted through the image signal source 100 for display on the LED module 500 of the electric signboard is displayed in the GSP control unit 200 . SCU (340) of the ATS control unit 300 by setting the detected flick frequency of occurrence of flicker and the adjusted integration time according to the input period according to the day or night illumination in the ITS (Integration Time Setting) 210 to be transmitted to the LED module 500 of the electronic sign board.

The ITS 210 reduces the flicker reduced through the dot output value of the LED module in the image output section and the grayscale control through Auto Flicker Detection 312 of the SCU 340 to provide a high-quality display image. A flicker-free image is created by setting the frame frequency of a high-output image by adjusting the refresh rate.

On the other hand, the MCU (Main Control Unit) 240 is provided as a dual load share for error data generated by a peak value or a phase change of the power according to the changeover of the power supply device 410 of the Power ATS control unit 400 The two MCUs 240 receive and understand the collected temperature, humidity, door opening/closing, fire detection, and fan driving status data of the LED module 500 so that power is supplied by stabilizing it through the control 430 .

The ITS 210 detects a flicker frequency that is generated as to whether the integration time is an integer multiple of the input period with respect to the uniform noise adjusted through the Histogram Equalization 224, and adjusts the integration time to set the transmitted setting period. In consideration of the time, it is transmitted to the LED module 500 of the electric sign board so that the image signal is expressed.

The gain control 221 stores the image inputted from the frame memory 230 in units of frames, and adjusts the frame frequency of the output image by adjusting the refresh rate to increase the low gray scale for the type of input image information.

The Main Control (222) reads the image data expressed from the frame memory that stores the data for Red, Green, and Blue image data, the memory read signal is controlled by the CLK and LATCH signals, and the data read into the memory is the LED constant current drive IC. When it is stored in the shift register of the OE (Out Enable) and the OE (Out Enable) output control signal is asserted, the image data is output to the LED for each color according to each data.

For the adjusted refresh rate according to the grayscale adjusted through the Gain Control (221), it converts the target value of the grayscale bit source image signal, and the grayscale clock suitable for the grayscale bit conversion logic and the data clock for transmission and the horizontal By controlling the synchronization signal and generating the synchronization signal, it controls the brightness correction to improve the white balance, color, and brightness uniformity of the image that displays the dot output value and grayscale pixel value of the LED module.

The space correction 223 generates a gray scale clock suitable for gray scale bit conversion logic, a data clock for transmission, and a control and synchronization signal of a horizontal synchronization signal.

6 is a detailed configuration diagram of the ATS control unit of the high-speed automatic switching power control signboard according to FIG. 3 . Looking at the detailed configuration and operation of the ATS control unit 300 with reference to the accompanying FIGS. 2 to 6 , the above The ATS control unit 300 is configured for each ATS Control, so that when the main power supply unit 410a fails during use by supplying dual type SMPS power, the standby power supply unit 410b is automatically driven to ensure stable operation of the electronic display board and the Receiver Interface Through the device, all information necessary for the operation of the electric sign board is collected by checking the temperature, humidity, door open/close, fire smoke detection, and other fan operation inside the LED module 500 unit of the sign board, and the collected data is displayed in real time. It is transmitted to the GSP control unit 200 and checked and controlled by the MCU 240 .

That is, the ATS control unit 300 switches the image data transmitted from the image signal source 100 to the displayed image data by switching the signal specified in the ITS (integraion time setting) to the image data value whose gamma value is determined by the histogram. ) to check the environment of the LED module dot so that the grayscaled and processed image is stably displayed with the LED module 500, and the image flicker that may occur in the image display frame rate and the bit change of the image data to confirm the current display To prevent the phenomenon from appearing, the status information of the corresponding LED module and module dot is received and transmitted to the MCU 240 to be controlled by the GSP control unit 200 .

The Auto Flicker Detection 312 displays high-quality flicker reduced by controlling the dot output value and grayscale of the LED module in the image output section with the data switched and transmitted according to the operation of the main cotroller 222 of the GSP 220. In order to provide an image, a flicker-free image is generated by setting a frame frequency of a high-output image by adjusting a refresh rate of a low grayscale.

The Integration Time Setting (311) detects the flick frequency by checking whether the integration time is an integer multiple of the input period for the image generated by the Auto Flicker Detection (312), adjusts the integration time, and considers the transmitted setting period time. is transmitted to the LED display module unit to display the corresponding video signal.

That is, to improve the white balance, color, and brightness uniformity of the image expressing the dot output value and grayscale pixel value of the LED module in the image output section through the SCU 340, the switched and transmitted data of the GSP 220 In order to improve the quality of the displayed image, it improves the quality of the displayed image, such as the dot output value of the LED module between the image outputs and the flicker reduction by grayscale control, to provide a high-quality image.

The SCU 340 checks the environment of the LED module dot and controls the ATS by driving the ITS so that the image display frame rate and image flicker that may occur in the bit change of the image data do not appear to check the current display from a distance. Accordingly, the status information of the corresponding LED module and module dot is received and transmitted to the MCU 200 .

Therefore, the ATS control unit 300 generates a quick changeover between the main SMPS power supply unit 410a and the spare SMPS power supply unit 410b of the Power ATS control unit 400 for stable image data transmission to the LED module 500 . In connection with the P-ATS (Power Automatic Transform Switch) 420, various environments of the LED module 500 dot are checked and the current is displayed in connection with the P-ATS (Power Automatic Transform Switch) 420 for the error phenomenon caused by the phase change of the power or the peak value according to the possible unspecified spark. In order to prevent image flicker from occurring in the frame rate and bit change of the image data by checking the details, the status information of the corresponding LED module and module dot is received and transmitted to the MCU 240 under the control of the ATS by driving the ITS.

7 is a detailed configuration diagram of the Power ATS control unit of the high-speed automatic switching power control signboard according to FIG. 3 , and FIG. 8 is a diagram showing the internal configuration of the ATS of the Power ATS control unit according to FIG. 7 , and FIG. 2 to FIG. Referring to the detailed configuration and operation of the Power ATS control unit with reference to 8, the Power ATS control unit 400 controls the peak value of an unspecified spark or power supply during rapid switching between the main power supply unit 410a and the spare power supply unit 410b. The error data generated by the phase change is stabilized in the load share control 430 so that power is supplied to the LED module 500 at high speed.

That is, the Power ATS control unit 400 is the main SMPS (410a), the spare SMPS (410b), the power supply unit 410, which may be rapidly switched between the power supply unit 410, a peak value or power phase change according to an unspecified spark that may occur. The error data that occurs is stabilized in the load share control (430) and power is supplied at high speed so that the LED module (500) of the electric sign board can display a stable image according to the reception conversion procedure through the sensor receiver controller ( 500) It is configured to collect status information of temperature, humidity, door opening and closing, fire smoke detection, and fan driving inside the unit, and to remotely check status data information through this through the MCU 240 .

Meanwhile, in the Power ATS control unit 400 , the MCU 240 and the Load share control 430 are connected to the P-ATS control 420 , and as shown in FIG. 8 , the main When the SMPS (410a) is driven and an image is output to the LED module 500 of the electric sign board, the Loade share Control 430 is the main SMPS (410a) for detecting the peak value according to the spark or error data generated by the phase change of the power source. ) of the resistor (R1) and the resistor (R2) of the SMPS (410b) connected in parallel to adjust the correct phase and when an error occurs in the main SMPS (410a), the P-ATS control (420) short-circuits the diode (D1) and The switching operation is performed with the diode D2 of the preliminary SMPS 410b, so that stable power is supplied to the LED module 500 of the electric sign board.

As described above, preferred embodiments of the present invention have been disclosed in the present specification and drawings, and although specific terms are used, these are only used in a general sense to easily explain the technical content of the present invention and help the understanding of the present invention. , it is not intended to limit the scope of the present invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

100: video signal source
200: GSP control unit
210: ITS 220: GSP
221: Gain Controller 222: Main Control
223: Space Correction 224: Histogram Equalization
230: Frame Memory 240: MCU (Main Control Unit)
300: ATS control unit
310: ATS 311: Integration Time Setting
312 : Auto Flicker Detection 340 : SCU (Sub Control Unit)
400: Power ATS control unit
410: SMPS 420: P-ATS Control
430 : Load Share Control
500: LED module

Claims (4)

As source information for supplying an image signal to be displayed on the LED module 500 of the electric sign board, it is a device that plays video media of DVD, HDMI, DP or VCR, or calls the image data stored in the memory to the LED module 500 of the LED sign board ) to transmit an image signal source 100;
In order to supply high quality power to the LED module 500 of the electronic sign board, a dual MCU 240 is provided to control the power ATS control unit 400 . In conjunction with the P-ATS Control (420), when one part of the redundant main power supply (SMPS) fails during use, it is automatically switched to drive the standby power supply (SMPS) and transmits error data to the load share control (430) stabilize it through For stable LED display operation by supplying power to the LED module 500, the temperature, humidity, door opening/closing, fire smoke detection, and fan driving of the LED module 500 unit of the electronic display board are driven through the operation of the sensor receiver controller for stable operation. a GSP control unit 200 that receives the state data information and operates to be grasped by the MCU 240;
By switching the image data transmitted from the image signal source 100 to the displayed image data by switching the signal specified in the ITS (integraion time setting) of the GSP control unit 200 to the image data value whose gamma value is determined by the histogram, the gray in the GSP 220 In order to stably transmit the image data transmitted by the scale process to the LED module 500, unspecified that may occur during rapid switching between the main power supply unit 410a and the spare power supply unit 410b of the Power ATS control unit 400 For the error phenomenon caused by the peak value according to the spark or the phase change of the power, the environment of the LED module dot is checked through the interlocked P-ATS (Power Automatic Transform Switch) 420, and the current expression is checked and the image is displayed In order to prevent the image flicker phenomenon that may occur in the frame rate and bit change of the image data, the status information of the corresponding LED module and module dot is received under the control of the ATS by the ITS driving and sent to the MCU 240 of the GSP control unit 200. ATS control unit 300 for transmitting;
Stabilizes error data caused by a peak value or power phase change due to an unspecified spark that may occur during rapid switching between the power supply unit 410 redundant to the main SMPS 410a and the spare SMPS 410b in the load share control. The temperature, humidity, door opening and closing of the LED module 500 unit of the electronic display board according to the operation of the sensor receiver controller for stable image expression to the LED module 500 of the electric sign board by supplying power to the LED module 500 at high speed , a Power ATS control unit 400 that transmits the collected state data information on whether or not the fire smoke is detected and the fan is driven to the MCU 240 so that the state can be checked remotely; and
A unit display module consisting of a plurality of LEDs arranged in n×m pixels is arranged in a matrix form to form a screen, and the power supplied from the Power ATS control unit 400 is applied to the image signal input through the image input device. High-speed automatic switching power control billboard comprising a; the LED module 500 that receives the supply and displays the image data to which the luminance correction data is applied in consideration of the luminance of pixels or brightness values of the electric sign board.
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