KR101963793B1 - LED display board system setting pixel display method and scanning method by automatic pixel scan - Google Patents

Abstract

Disclosed is an LED electronic display board system automatically setting pixel display and scanning methods through pixel scanning. According to an embodiment, the LED electronic display board system includes: an LED electronic display board scanning LED pixels of an LED electronic display board in accordance with a scan request from a remote control device and forming an LED module in an LED pixel display method set by the remote control device in accordance with the pixel scanning result; and the remote control device receiving and analyzing a scan response signal from the LED electronic display board and setting an LED pixel display method based on the analysis result, while remotely controlling and monitoring the LED electronic display board. The remote control device includes: a remote communication part transmitting a scan request signal to the LED electronic display board and receiving a scan response signal from the LED electronic display board; an analyzing part analyzing the scan response signal received through the remote communication part; a detecting part detecting whether the LED pixels of the LED module are defective in accordance with the analysis result of the analyzing part; and a display method setting part setting an LED pixel display method in accordance with the analysis result of the analyzing part and remotely controlling the LED electronic display board so that the board is able to automatically form the LED module in the set LED pixel display method.

Description

[0001] The present invention relates to an LED display board system for automatically setting a pixel display method and a scanning method through a pixel scan,

The present invention relates to an electric sign board technology using an LED.

(Hereinafter referred to as " LED electric signboard ") using LEDs are widely used in various places and are used. The LED display panel generally includes an LED display unit including a plurality of LEDs arranged in a closely arranged manner, a power supply unit for supplying power from the power source to the device, and a control unit for controlling operation of the internal devices . In the control room located remotely, a message such as advertisement text or information necessary for the situation is sent automatically or manually so that the message can be displayed on the LED display board.

In the case of the LED display panel having such a structure, it is troublesome to manually adjust the data scanning method for confirming the display state of the LED module by dispatching to the field. For example, there is a disadvantage that the size and number of the LED module constituting the LED electric signboard must be checked in advance in the field beforehand, and the LED electric signboard must be driven according to the setting value, and the installation position of the LED electric signboard In many cases, it is troublesome to check every place for management and installation of LED electronic signboards. Also, in case of operating the LED display board, it is necessary to dispatch the LED pixel directly to the spot to determine the defect.

According to one embodiment, an LED electric signboard capable of checking and setting the status of the LED electric signboard remotely and automatically is proposed.

The LED display panel system according to an embodiment of the present invention includes an LED display panel for scanning the LED pixels of the LED display panel according to a scan request of the remote control device and configuring the LED module according to the LED pixel display mode set by the remote control device, And a remote control device for monitoring and remotely controlling the LED electronic signboard and receiving and analyzing the scan response signal from the LED electronic signboard and setting the LED pixel display mode based on the analysis result, A remote communication unit for transmitting a request signal and receiving a scan response signal from the LED electronic board; an analysis unit for analyzing the scan response signal received through the remote communication unit; An LED pixel display mode is set according to the analysis result of the analysis unit, and an L And an expression mode setting section for remotely controlling the LED module to automatically configure the LED pixel display mode.

The LED pixel display scheme may include single-row configuration information of the LED panel composed of the maximum number of displayable LED modules and the maximum display LED module.

The analyzing unit grasps the display state of the LED display board through the pixel scan of the LED display board and the display mode setting unit automatically changes the pixel display method of the LED display board in accordance with the detected display state of the analyzer after the pixel display method of the LED display board is first set .

The display mode setting unit can set the LED pixel display mode by calculating the effective pixel scan signal value in the scan response signal. Here, the effective pixel scan signal value is (Sa / Ta) xTa or (Sb / Ta) xTa, Sa is the number of turn-on response signals, Sb is the number of turn- The number of scan signals.

The remote control device may further include a scanning mode setting unit for setting a scanning mode of the LED electric sign board based on the LED pixel display mode set through the display mode setting unit. The scanning method setting unit sets the scanning method using a lane control system (LCS) method when the LED panel set according to the LED pixel display method is configured in a single column and the LED panel set according to the LED pixel displaying method If it is configured to be other than one row and one column, the scanning method can be set by the Variable Message Sign (VMS) method.

When the analyzing unit receives the sensor signal from the sensor in the tunnel, it judges whether or not the dangerous situation occurs in the tunnel from the sensor signal. If it is determined that the dangerous situation occurs, the detecting unit detects the fire hydrant installed in the dangerous place in the tunnel. And a risk situation control unit for transmitting the danger situation guidance information through the remote communication unit to the detected fire hydrant and controlling the dangerous situation guidance information to be displayed on the LED electric signboard installed inside the open fire hydrant door.

The LED display board includes an LED display unit for displaying information through an LED panel constituted by a plurality of LED modules, an LED display unit for displaying information on each LED pixel of the LED module according to a scan request of the remote control apparatus, A driving chip for receiving a scan response signal for transmitting a scan signal and returning a feedback signal to the driving chip; a display board control unit for transmitting a scan request signal of the remote control device to the driving chip and transmitting a scan response signal, .

The LED electric sign board is installed inside the tunnel interior of the fire hydrant casement door. The LED electric sign board includes a motor that rotates and opens the fire door on the side of the door frame of the fire extinguisher box so as to face the vehicle in which the inside enters, And the electric signboard control unit operates the motor to open the hydrant door when the dangerous situation guidance information is received from the remote control device through the electric sign board communication unit and displays the hazard situation guidance information through the LED display unit, Can be driven.

The LED display panel system according to one embodiment can automatically set a pixel display mode according to the environment of the LED display board remotely. In other words, the display state of the LED module can be remotely checked through the LED pixel scan, and the pixel display method can be automatically changed according to the display state of the confirmed LED module. Furthermore, the scanning method can be automatically changed remotely according to the set pixel display method.

The LED display panel system according to one embodiment informs the driver of the emergency situation information in the tunnel by using the LED display board installed in the installed fire hydrant when the emergency situation occurs in the tunnel and it is easy to install without changing the structure of the tunnel separately, . As a result, the installation of such a LED electronic signboard can be rapidly extended to existing tunnels, thereby preventing a safety accident in a tunnel. In addition, even when the power supply is cut off due to tunnel fire or communication failure, the self-battery built-in function of the LED display board in the fire hydrant can inform the dangerous situation to the rear vehicles in the place where the dangerous situation occurs, .

1 is a view illustrating a configuration of an LED display panel system according to an embodiment of the present invention;
2 is a view showing the configuration of an LED electronic signboard according to an embodiment of the present invention,
3 is a diagram illustrating the configuration of a remote control apparatus according to an embodiment of the present invention;
4 and 5 are diagrams illustrating an example of a scanning method setting according to an embodiment of the present invention.
6 is a cross-sectional view of a tunnel provided with an LED electronic signboard according to an embodiment of the present invention,
7 is a view illustrating a plane of a tunnel provided with an LED electric signboard according to an embodiment of the present invention,
8 is a view showing an example of a fire hydrant according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. , Which may vary depending on the intention or custom of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

Each block of the accompanying block diagrams and combinations of steps of the flowcharts may be performed by computer program instructions (execution engines), which may be stored in a general-purpose computer, special purpose computer, or other processor of a programmable data processing apparatus The instructions that are executed through the processor of the computer or other programmable data processing apparatus will produce means for performing the functions described in each block or flowchart of the block diagram.

These computer program instructions may be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement a function in a particular manner, It is also possible for the instructions stored in the block diagram to produce an article of manufacture containing instruction means for performing the functions described in each block or flowchart of the flowchart.

And computer program instructions may also be stored on a computer or other programmable data processing apparatus so that a series of operating steps may be performed on a computer or other programmable data processing apparatus to create a computer- It is also possible for the instructions to perform the data processing apparatus to provide steps for executing the functions described in each block of the block diagram and at each step of the flowchart.

Also, each block or step may represent a portion of a module, segment, or code that includes one or more executable instructions for executing the specified logical functions, and in some alternative embodiments, It should be noted that functions may occur out of order. For example, two successive blocks or steps may actually be performed substantially concurrently, and it is also possible that the blocks or steps are performed in the reverse order of the function as needed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments of the present invention may be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to enable those skilled in the art to more fully understand the present invention.

FIG. 1 is a diagram illustrating a configuration of an LED display panel system according to an embodiment of the present invention. Referring to FIG.

1, the LED display panel system 1 includes an LED display panel 2 and a remote control device 3. [

In general, the manager manually sets the display state of the LED module constituting the LED display board 2 in the vicinity of the LED display board 2 and directly confirms whether the operation is normal by the naked eye. However, the remote control device 3 according to the embodiment checks the display state of the LED module through the LED pixel scan of the LED display board 2 at a long distance, and automatically sets the pixel display mode according to the display state of the checked LED module . Therefore, the display mode of the LED display board 2 can be set remotely and automatically.

The LED display panel 2 scans the status of the LED display panel 2 according to a scan request of the remote control device 3 and transmits a scan response signal to the remote control device 3. Then, the remote controller 3 receives the LED pixel display mode setting information from the remote controller 3 and configures an LED module that can display the LED pixel display mode according to the LED pixel display mode set by the remote controller 3. The remote control device 3 receives and analyzes the scan response signal from the LED display panel 2 and sets the LED pixel display mode based on the analysis result. The LED pixel display scheme may include single-row configuration information of the LED panel composed of the maximum number of displayable LED modules and the maximum display LED module.

The remote control device 3 monitors and remotely controls the LED display board 2. [ The remote control device 3 can communicate with the LED display panel 2 via the TCP / IP communication method for monitoring and remote control. The remote control device 3 receives various signals transmitted from the LED display panel 2 and monitors the accurate state of the LED display panel 2 in real time. The remote control device 3 may be a control server. The remote control device 3 can easily perform the monitoring operation on the LED electric sign board 2 by using an output device such as a PC, a PDA, a mobile terminal or the like. For this purpose, the signal transmitted from the LED electronic sign board 2 can be converted to be displayed on an output device via an Internet network or the like. The remote control device 3 may be provided with a status management program for the LED electronic sign board 2. [ The remote control device 3 according to an embodiment of the present invention is capable of displaying the pixel display of the LED display panel 2 in accordance with the display state grasped through the LED pixel scan of the LED display panel 2 after the initial setting of the pixel display mode of the LED display panel 2 Change the method automatically.

2 is a view showing a configuration of an LED electric signboard according to an embodiment of the present invention.

1 and 2, the LED display panel 2 includes a display panel communication unit 20, an LED display unit 21, a driver IC 22, a display board control unit 23, and a power supply unit 24 And may further include a motor 25 and a battery 26.

The electric sign board communication unit 20 transmits and receives information to and from the remote control device 3. For example, it receives a signal for displaying information, a scan request signal, and the like from the remote control device 3 and transmits a scan response signal to the remote control device 3. The LED display unit 21 displays information through an LED panel including a plurality of LED modules. The driving chip 22 provides a driving signal and data to the LED panel as an electric signal so that a character or a video image is displayed on the screen of the LED display unit 21. [ The driving chip 22 according to an embodiment transmits a pixel scan signal to each LED pixel constituting the LED module according to a scan request of the remote control device 3 and obtains a scan response signal to return to feedback. The electric sign board control unit 23 transfers the scan request signal of the remote control device 3 to the drive chip 22 and transmits the scan response signal obtained through the drive chip 22 to the electric sign board communication unit 20.

The LED electronic signboard 2 according to one embodiment is installed inside the fire hydrant door inside the tunnel. A fire hydrant is installed on the side wall of the tunnel in case of a fire accident in the tunnel inside. At this time, the LED display panel 2 informs the dangerous situation in the tunnel such as 'forward accident' through the LED display unit 21 provided inside the door of the fire hydrant. When a dangerous situation occurs, the motor 25 rotates and opens the fire hydrant hinged door installed in the tunnel around one side of the door frame of the fire extinguishers so as to face the vehicle on the inside. The LED display unit 21 outputs dangerous situation guidance information and the electric signboard control unit 23 drives the motor 25 when the dangerous situation guidance information is received from the remote control device 3 through the electric sign board communication unit 20, The door is opened and the danger situation guidance information is displayed through the LED module of the LED display unit 21. [ Further, the battery 26 is driven when the power supply is interrupted. The power supply unit 24 supplies power to the LED display board 2. An embodiment of this will be described below with reference to FIGS. 6 to 8. FIG.

3 is a diagram illustrating a configuration of a remote control apparatus according to an embodiment of the present invention.

1 and 3, the remote control device 3 includes a remote communication unit 30, a remote control unit 32, and a storage unit 34. [

The remote communication unit 30 transmits and receives information to and from the LED display board 2. The remote control unit 32 controls each component of the remote control device 3. The remote control unit 32 may include an analyzing unit 320, a detecting unit 322, a display mode setting unit 324, a scanning mode setting unit 326, and a dangerous situation control unit 328. The storage unit 34 stores information necessary for the operation of the remote control unit 32, information generated when the operation is performed, and the like.

The analysis unit 320 analyzes the scan response signal received from the LED display board 2 through the remote communication unit 30. The detection unit 322 detects whether the LED pixels constituting the LED module of the LED display panel 2 are defective according to the analysis result of the analysis unit 320. At this time, it is possible to detect whether there is a defect by using a turn-on signal and a turn-off signal in the scan response signal. The turn-on signal and the turn-off signal can distinguish the turn-on signal and the turn-off signal depending on whether the amount of current consumed for each LED pixel mounted on the LED module is out of a preset reference value or not. At this time, if the predetermined reference value is exceeded, it can be determined that the corresponding LED pixel is defective.

The display mode setting unit 324 sets the LED pixel display mode according to the analysis result of the analyzing unit 320 and remotely controls the LED display panel 2 to automatically configure the LED pixel display mode. The analyzing unit 320 according to the embodiment grasps the display state of the LED display board through the pixel scan of the LED display board and the display mode setting unit 324 sets the display mode of the LED display board 2 after the initial setting of the pixel display mode of the LED display board 2, The display method of the LED display panel 2 is automatically changed according to the detected display state of the LED display panel 320.

The display mode setting unit 324 sets an LED pixel display mode by calculating an effective pixel scan signal value in the scan response signal. At this time, the effective pixel scan signal value is (Sa / Ta) xTa or (Sb / Ta) xTa, Sa is the number of turn-on response signals, Sb is the number of turn- The number of scan signals.

If the effective pixel scan signal Pixel Scan 1 = Sa and the effective pixel scan signal Pixel Scan 2 = Sb when Sa is the number of turn-on response signals and Sb is the number of turn-off response signals, , If Pixel Scan 1 and Pixel Scan 2 are the same (if Pixel Scan 1 = Pixel Scan 2), and Ta is Pixel Scan 1 or Pixel Scan 2. If Pixel Scan 1 or Pixel Scan 2 is 1024 (if Pixel Scan 1 or Pixel Scan 2 = 1024), the LED panel is configured in a single row. On the other hand, if Pixel Scan 1 or Pixel Scan 2 is 2024 (if Pixel Scan 1 or Pixel Scan 2 = 2024), then the LED panel is configured as one row and two columns. Here, the LED pixel is included in the LED module, and one LED module contains 256 LED pixels (16 × 16 = 256). The first stage may be composed of four LED modules (1024 pixels = 256 x 4).

The scanning mode setting unit 326 sets the scanning mode of the LED display board based on the LED pixel display mode set through the display mode setting unit 324. [ The scanning method setting unit 326 according to an exemplary embodiment may set a scanning method using a lane control system (LCS) method when the LED panels set according to the LED pixel display method are configured in a single row, When the LED panel configured according to the display mode is configured to be other than the first row and the first column, the scanning method is set by the Variable Message Sign (VMS) method. This is because the lane control system (LCS) mainly uses the LED panel of the first row and the variable message sign (VMS) uses the other LED panel. An embodiment of this will be described below with reference to FIGS. 4 and 5. FIG.

According to one embodiment, when the analyzer 320 receives a sensor signal from a sensor in a tunnel, it determines whether a dangerous situation occurs in the tunnel. If it is determined that a dangerous situation has occurred, the detection unit 322 detects a fire hydrant installed at a dangerous situation occurrence position in the tunnel. The dangerous situation control unit 328 transmits dangerous situation guidance information through the remote communication unit 30 to the detected fire hydrant and controls the LED electric signboard 2 installed inside the opened fire hydrant door.

FIGS. 4 and 5 are diagrams illustrating an example of a scanning method setting according to an embodiment of the present invention.

3 to 5, the remote control device 3 automatically sets the scanning method of the LED electronic sign board 2 remotely. Generally, the LED display panel 2 uses a progressive scanning method. The progressive scanning method is a method of displaying images to display contents on the screen in order from the beginning to the end. In the progressive scan method, when the image is displayed on the LED panel, the image is displayed by sequentially starting from the upper left corner of the LED module to the lower right corner of the screen. At this time, the first line starts from the left to the right and the second line starts from the left again to the right and goes down one by one. The first line starts from the left to the right and the second line starts from the right There are two ways to go down one by one while displaying to the left.

The scanning mode setting unit 326 sets the scanning mode of the LED electric signboard 2 based on the LED pixel display mode set through the display mode setting unit 324. [ The scanning method setting unit 326 according to an exemplary embodiment sets a scanning method using a lane control system (LCS) when the LED panels configured according to the LED pixel display method are configured in a single row. In the lane control system, as shown in FIG. 4, when the LED panel is composed of one row and one column, the LED module is turned on and off sequentially in the order of 1 → 2 → 4 → 3 (on and off) do. The Lane Control System (LCS) system corresponds to Method 2 described above.

On the other hand, if the LED panel configured according to the LED pixel display system is configured to be other than the first row and one column, the scanning method is set by a variable message sign (VMS) method. For example, as shown in FIG. 5, the LED modules are turned on and off sequentially (1 → 2 → 3 → 4 → 5 → 6) in order, and information is displayed while proceeding. The Variable Message Sign (VMS) scheme corresponds to Method 1 described above.

FIG. 6 is a cross-sectional view of a tunnel provided with an LED display panel according to an embodiment of the present invention, and FIG. 7 is a view illustrating a plane of a tunnel provided with the LED display panel according to an embodiment of the present invention.

6, sensors 4 and fire hydrants 5 are installed on the side walls of the tunnel at a plurality of predetermined distances in preparation for a fire accident in a vehicle. The sensor 4 is installed in the tunnel to detect a disaster occurring in the tunnel, that is, a rollover or contact accident of a vehicle, a fire accident, and the like. The sensor 4 may be a fire detector or a CCTV camera. For example, the camera is arranged in the longitudinal direction on the upper side of the inner wall of the tunnel, so that the camera can photograph the inside of the tunnel in real time for checking the internal situation of the tunnel. Generally, a fire hydrant 5 for a road tunnel is a fire extinguishing facility that can be used when a fire occurs in a road tunnel, and a powder fire extinguisher and a fire hose are provided in the interior. In accordance with an embodiment of the present invention, a display unit is provided inside the sliding door of the hydrant 5 to notify a dangerous situation in the tunnel such as 'forward accident'.

The remote control device 3 is a small general situation room in which high-performance software is installed in a CPU to perform an operation according to a disaster occurring in the tunnel. This can provide secondary measures to meet the situation, thus minimizing human and material damage and enabling stable operation.

8 is a view showing an example of a fire hydrant according to an embodiment of the present invention.

Referring to FIG. 8, the digester 5 is inserted into an inner wall of a tunnel, and a digester 6 is stored therein. The fire hydrant 5 is opened and closed by a hinged door 7 which is rotated around one side of the door frame of the digester. According to one embodiment, the hinged door 7 is formed on the left side of the door frame of the hydrant 5 so as to face the vehicle on the inside when the door is opened. However, it may be formed on the right side in the case where the running direction of the vehicle is opposite, such as the United Kingdom or Japan. In addition, the LED display unit 21 is provided on the inner side of the hinged door 7, so that the mechanism connected to the motor in an emergency operates to open the door automatically, thereby outputting dangerous situation occurrence information in the tunnel to the driver. That is, the door is rotated forward and backward by a power source externally applied by a motor to automatically open and close the hinged door 7, so that the rotary shaft is downwardly installed on one side of the door frame so that the hinged door 7 is opened or closed The rotary shaft can be rotated so as to rotate in the forward direction or the reverse direction.

The embodiments of the present invention have been described above. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

Claims (9)

An LED electronic board for scanning the LED pixels of the LED display panel according to the scan request of the remote control device and configuring the LED module according to the LED pixel display mode set by the remote control device according to the result of the pixel scan; And
A remote control device for monitoring and remotely controlling the LED display panel and receiving and analyzing the scan response signal from the LED display panel and setting the LED pixel display mode based on the analysis result; / RTI >
The remote control device
A remote communication unit for transmitting a scan request signal to the LED electronic board and receiving a scan response signal from the LED electronic board;
An analysis unit for analyzing a scan response signal received through the remote communication unit;
A detector for detecting whether the LED pixels constituting the LED module are defective according to an analysis result of the analysis unit;
A display mode setting unit for remotely controlling the LED pixel display mode according to the analysis result of the analysis unit and automatically configuring the LED module using the LED pixel display mode in which the LED display panel is set; And
A scanning mode setting unit for setting a scanning mode of the LED display board based on the LED pixel display mode set through the display mode setting unit;
Wherein the LED display panel includes a plurality of LEDs. The method according to claim 1,
Wherein the LED pixel display system includes information on the single-row configuration of the LED panel including the maximum number of displayable LED modules and the maximum display LED module. delete An LED electronic board for scanning the LED pixels of the LED display panel according to the scan request of the remote control device and configuring the LED module according to the LED pixel display mode set by the remote control device according to the result of the pixel scan; And
A remote control device for monitoring and remotely controlling the LED display panel and receiving and analyzing the scan response signal from the LED display panel and setting the LED pixel display mode based on the analysis result; / RTI >
The remote control device
A remote communication unit for transmitting a scan request signal to the LED electronic board and receiving a scan response signal from the LED electronic board;
An analysis unit for analyzing a scan response signal received through the remote communication unit;
A detector for detecting whether the LED pixels constituting the LED module are defective according to an analysis result of the analysis unit; And
A display mode setting unit for remotely controlling the LED pixel display mode according to the analysis result of the analysis unit and automatically configuring the LED module using the LED pixel display mode in which the LED display panel is set; / RTI >
The analyzing unit analyzes the display state of the LED display board through pixel scanning of the LED display board,
The display mode setting unit automatically changes the pixel display mode of the LED display board in accordance with the detected display state of the analyzer after the initial setting of the pixel display mode of the LED display board, calculates an effective pixel scan signal value in the scan response signal, (Sa / Ta) × Ta or (Sb / Ta) × Ta, Sa is the number of turn-on response signals, Sb is the number of turn-off response signals, And Ta is a total number of pixel scan signals. delete 2. The apparatus of claim 1, wherein the scanning mode setting unit
When the LED panel configured according to the LED pixel display method is constituted by one row and one column, the scanning method is set by the lane control system (LCS) method,
Wherein a scanning method is set by a Variable Message Sign (VMS) method when the LED panel configured according to the LED pixel display method is configured in a configuration other than the first stage and one column. The method according to claim 1,
When the analyzer receives a sensor signal from a sensor in the tunnel, it determines whether a dangerous situation occurs in the tunnel from the sensor signal,
The remote control device
A fire hydrant detection unit for detecting a fire hydrant installed at a dangerous situation occurrence position in a tunnel when it is determined that a dangerous situation has occurred; And
A dangerous situation control unit for transmitting the dangerous situation guidance information through the remote communication unit to the detected fire hydrant and controlling the dangerous situation guidance information to be displayed on the LED electric signboard installed inside the opened fire hydrant door;
Further comprising a light emitting diode (LED). The LED display according to claim 1,
An electric sign board communication unit for transmitting and receiving information to and from the remote control device;
An LED display unit for displaying information through an LED panel composed of a plurality of LED modules;
A driving chip for transmitting a pixel scan signal to each LED pixel of the LED module according to a scan request of the remote control device and acquiring a scan response signal for returning to feedback; And
A display control unit for transmitting a scan request signal of the remote control device to the driving chip and transmitting a scan response signal obtained through the driving chip to the display unit;
Wherein the LED display panel includes a plurality of LEDs. 9. The method of claim 8,
The LED electronic signboard is installed inside the fire door of the fire hydrant inside the tunnel,
The LED display panel
A motor that rotates and opens the fire hydrant hinged door installed in the tunnel around one side of the door frame of the fire extinguishers so as to face a vehicle entering the inside; And
battery; Further comprising:
The electric sign board control unit operates the motor to open the fire hydrant door, displays the hazard situation guidance information through the LED display unit, and drives the battery when the power supply is interrupted, upon receiving the hazard situation guidance information from the remote control device through the electric sign board communication unit The LED signboard system features.

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