KR101007891B1 - System for exhibiting information of led electronic display sign board - Google Patents

Abstract

PURPOSE: A system for expressing the information of a light emitting diode electronic display is provided to express images in real time by setting the parameter of a message packet according to a transmission protocol between the host personal computer(PC) and a controlling module. CONSTITUTION: A plurality of light emitting diode-based lamps is arranged in a matrix shape in order to form a light emitting diode-based display panel(300). Phrases are expressed on the light emitting diode-based display panel. The host PC(100) inputs the phrases in an operating program and transmits the inputted phrases to the outside according to a transmission protocol. A controlling module(200) verifies whether the inputted phrases are general phrases and expresses the inputted phrases on the light emitting diode-based display panel.

Description

Information display system of LED display board {SYSTEM FOR EXHIBITING INFORMATION OF LED ELECTRONIC DISPLAY SIGN BOARD}

The present invention relates to an LED sign, and more particularly, to an information display system of an LED sign that can easily and easily express phrases to be expressed through the LED sign.

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

Among them, the LED signboard arranges a plurality of LEDs in a matrix form, and a plurality of LEDs arranged in a matrix form a pixel for displaying an image, thereby displaying an image. Such LED signboards are installed and used in various forms outside or inside the building for advertisement or delivery of various information.

Such LED signboards are widely used to guide and publicize announcements and promotional matters in various businesses and government offices. This is because when using a conventional poster or placard, not only notices and publicity matters are not visible at night, but the contents are not well understood at a long distance even during the day. to be.

Therefore, the related industry develops and presents various electronic boards, but there is a problem that module control is not easy in public offices and businesses to apply existing pixel and LED modules to electronic boards. This is because there is no standard LED signboard, so each module maker makes various kinds of modules, and accordingly, the method of expressing the phrase according to the LED signboard to be used is different for each module maker.

An object of the present invention is to provide an information display system of the LED display board that can control the LED display panel made by different companies through a single host PC.

In addition, an object of the present invention is to provide an information display system of the LED display board that can easily and easily express the phrase even when the phrase that must be expressed urgently.

In addition, an object of the present invention is to provide an information display system of the LED display panel that can reduce the light spread by increasing the brightness of the LED display module according to the surrounding environment, and increase the life of the LED display module. .

In the information display system of the LED display panel according to the present invention, a plurality of LED lamps are arranged in a matrix form to display the display statement, and an operating program is provided, the display statement to be displayed through the LED display board on the operating program input And a response message to the host PC that transmits the inputted expression to the outside according to the transmission protocol and the expression received from the host PC to the host PC, and determines whether the inputted expression is a general phrase. The control module may be stored in different memories according to whether or not, and display expression stored in the memory may be displayed through the LED display board at a preset time.

In this case, the control module may include a first nonvolatile memory storing general phrases, a second nonvolatile memory storing emergency phrases, a display unit of the LED display board, and a first switch unit configured to set a communication speed; The second switch unit for setting an address when there is more than one LED display board, an input / output interface for transmitting and receiving an expression word input through the host PC according to a transmission protocol, and an expression word input through the host PC are general phrases or emergency phrases. It is characterized in that it comprises a control unit for determining and storing in the first memory and the second memory, respectively, and display expression input through the host PC at a preset time.

In addition, the input / output interface may be any one of serial communication, wired LAN, wireless LAN, Bluetooth, SD memory, and PLC communication.

In addition, the transmission protocol includes a command unit and a response unit, and sets an emergency phrase, a general phrase, and an expression effect in the parameter of the message packet of the command unit of the transport protocol and transmits the effect to the control module.

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The present invention can simply and easily express the phrase on the LED display board by providing the operating program to the host PC and simply set the expression and the effect of the phrase through the host PC.

In addition, the present invention may be provided with a first memory and a second memory for storing the general phrase and the emergency phrase, respectively, when the phrase that is to be urgently expressed, it is possible to express the emergency phrase without having to delete the general phrase being expressed. .

In addition, the present invention can set the parameters of the message packet according to the transmission protocol in real time between the host PC and the control module to display the phrase or image to be expressed freely in real time through the LED display.

1 is a view showing the configuration of the information display system of the LED display board according to an embodiment of the present invention.
2 is a view showing the configuration of a control module according to an embodiment of the present invention.
3 is a diagram illustrating a message packet of a command unit of a transport protocol according to the present invention.
4 is a diagram illustrating a message packet of a response unit of a transport protocol according to the present invention.
5 is a view showing an information display method of the LED display board according to an embodiment of the present invention.
6A to 6E are diagrams illustrating a display effect method in an information display method of an electronic display board according to an embodiment of the present invention.
7A to 9B are diagrams illustrating an example of expression of an LED display board according to parameter setting of a message packet.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, one embodiment of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited due to the embodiments described below. One embodiment of the present invention is provided to more easily explain the present invention to those skilled in the art.

1 is a view showing the configuration of the information display system of the LED display board according to an embodiment of the present invention.

Referring to FIG. 1, the information display system of the LED display panel according to the embodiment of the present invention may include a host PC 100, a control module 200, and an LED display panel 300.

The host PC 100 is for inputting an expression phrase to be expressed through the LED sign 300. That is, the size of the display board, the brightness of the display board, the time and day setting using the display board, the general phrase setting, the emergency phrase setting, the general phrase and the effect of expressing the emergency phrase is made. Here, the general phrase is a phrase that is continuously expressed through the LED signboard, for example, refers to a phrase such as "prohibit side parking." On the other hand, the emergency phrase is a phrase that is expressed temporarily through the LED signboard, for example, the phrase, such as "Please pull out the car of the 1004 number." In this case, images or texts that can be included in general and emergency texts can be easily and quickly selected and expressed using a text editing window supported by Windows O / S, or graphical tools. Simple and easy to type. The expression text input as described above is transmitted to the control module 200 according to the transmission protocol. In this case, the host PC 100 is provided with an operating program, and the general phrase setting, emergency phrase setting, and the like inputted through the operating program may be set in a parameter of a message packet of the command unit and transmitted.

The control module 200 receives an expression sent through the host PC 100 and transmits a response message thereto. In addition, it determines whether the input expression phrase is a general phrase or an emergency phrase and stored in different storage units and controls the expression phrase stored at a predetermined time to be displayed through the LED sign 300. The configuration of the control module 200 will be described later.

The LED sign 300 has a plurality of LED lamps are arranged in a matrix form, and expresses the expression phrase according to the control of the control module 200.

2 is a view showing the configuration of a control module according to an embodiment of the present invention.

Referring to FIG. 2, the control module 200 according to an embodiment of the present invention may include a first memory 210, a second memory 220, an input / output interface 230, a first switch unit 240, and a second. The switch unit 250 and the control unit 260 may be included.

The first memory 210 is a memory in which general phrases are stored. The first memory 210 may be a nonvolatile memory in which stored data is not deleted even when power is not supplied, due to the characteristics of the general phrase that is continuously displayed through the LED display board 300.

The second memory 220 is a memory in which an emergency phrase is stored. In the case of an emergency, the second memory 220 may be a volatile memory due to the characteristics of the emergency text that is expressed and deleted in a short time.

The input / output interface 230 may receive the message packet of the command unit according to the transmission protocol inputted through the host PC 100 and transmit the message packet of the response unit. The input / output interface 230 may generally have two COM1 and COM2 communication ports, and each may have a receiving buffer of 1024 bytes. In this case, it is preferable that the reception buffer be implemented as a ring buffer, and the data can be completely processed even if data of 1024 bytes or more is transmitted. In this case, the input / output interface 230 may use both serial communication (RS-232, RS-422, RS-485), wired LAN, wireless LAN, Bluetooth, SD memory and the like, wireless communication.

The first switch unit 240 may test the LED lamp of the LED sign 300 and set the communication speed.

The second switch unit 250 may set an address when the input / output interface 230 is set to serial communication to control one or more LED display boards 300.

The control unit 260 determines whether the presentation phrase input through the host PC 100 is a general phrase or an emergency phrase, so that the general phrase is stored in the first memory 210, and if the emergency phrase is a second phrase 220. Can be stored in In addition, the controller 260 controls the display phrase stored at a predetermined time to be displayed through the LED display board 300. On the other hand, if the general phrase is being expressed through the LED signboard 300, but the emergency phrase must be expressed, without deleting the expressed general phrase, overlapping the urgent phrase is expressed, or by dividing the screen with the general phrase and emergency phrase Can be expressed at the same time.

The control module 200 configured as described above transmits and receives a message according to the transmission protocol with the host PC 100, which will be described in more detail as follows.

3 is a diagram illustrating a message packet of a command unit of a transport protocol according to the present invention, and FIG. 4 is a diagram showing a message packet of a response unit of a transport protocol according to the present invention.

First, before looking at Figures 3 and 4, with reference to the transport protocol according to the present invention, the transport protocol according to the present invention basically transmits and receives only message packets. However, in industrial sites with many noise generating devices or in unstable communication lines, CRC 16 can be used to reinforce error handling. Because of the low cost and simple system configuration, serial communication is used a lot in many places, but serial communication is weak to noise due to external influences as simple as configuration. The transmission protocol according to the present invention is composed of a command part and a reply part.

Referring to FIG. 3, the message packet of the command unit may be generally transmitted from the host PC 100 to the control module 200. Meanwhile, FIG. 4 may be a form in which a message packet of the response unit is generally transmitted from the control module 200 to the host PC 100. Since COM1 and COM2 of the input / output interface 230 process message packets in the same manner, the same function may be performed using any communication port. At this time, if the message packet of the command unit does not receive continuous data within 50 ms, the control module 200 processes the error and prepares to receive a new message. However, when the general phrase stored in the first memory 210 is transmitted, a response message may be sent after a maximum of 100 ms since the control module 200 needs to write a flash ROM. In addition, if the emergency message is sent to the first memory 210, the response message is immediately returned, so that the message can be transmitted in real time. The upper 12 bits to 15 bits (LEN Bit [15:12]) of these message packets can use the packet status for special purposes. That is, it can be applied by selecting from response message processing, CRC 16 error detection, and DLE byte stuffing. Here, DLE byte stuffing is a method of notifying the beginning and end of a frame in the HDLC protocol, and uses specific characters DLE STX and DLE ETX in the ASCII code, to prevent the same character from appearing in the actual data body. This means that an extra DLE is inserted immediately before the DLE character that appears accidentally on the sender.

Such information display system of the LED display board 300 according to an embodiment of the present invention transmits and receives a message packet according to the transmission protocol, the general phrase setting, display phrase setting, display effect (color selection, screen display) of the LED display board 300 Division, etc.), and the uniformity and bad state of the LED lamp can be checked.

Looking at the information display method of the LED sign according to an embodiment of the present invention as follows.

5 is a view showing an information display method of the LED display board according to an embodiment of the present invention.

Referring to FIG. 5, an expression phrase to be expressed through the LED sign 300 is prepared (S501). Expressions can be in the form of images, text, or animation. In the case of text creation, the expression phrase to be expressed is created, and the letter shape, size, color, background color, expression position, etc. are stored. On the other hand, in the case of creating an image or animation, a color, a background color, an expression position, and the like of an image to be displayed are set and stored using a paint plate or the like.

After that, it is selected whether the written expression is a general phrase or an emergency phrase (S502).

Subsequently, the expression effect of the prepared expression phrase is selected (S503). Here, the expressing effect means, for example, flickering, moving in the vertical or horizontal direction, divided display, and the like in the LED display board 300.

Thereafter, the prepared expression phrase is previewed (S504) to determine whether to correct (S505), and if correction is not necessary, the generated expression phrase is transmitted to the control module 200 (S506). On the other hand, if correction is necessary, the expression statement is rewritten (S501). However, when modifying the display effect is selected (S503).

It is determined whether the transmitted expression is a general phrase (S507) and if it is determined that the general phrase is stored in the first memory 210 (S508) and is expressed through the LED sign 300 (S509). On the other hand, if the transmitted expression is an emergency phrase rather than a general phrase it is stored in the second memory 220 (S510).

Thereafter, when the emergency phrase should be expressed (S511), the emergency phrase is expressed without deleting the expressed general phrase (S512). In addition, general phrases and emergency phrases may be simultaneously displayed on the LED display board 300. For example, one line may display general phrases, two lines may display emergency phrases, or the screen may be divided so that the left screen may display general phrases and the right screen may display emergency phrases. On the other hand, when the emergency phrase does not have to be expressed, the general phrase is expressed as it is (S509).

It is determined whether the emergency phrase is expressed for a predetermined time (S513) and when the preset time is reached, the general phrase is expressed again (S514). On the other hand, if it is determined that the preset time has not been reached, the emergency sentence is expressed until the preset time.

In the above information display method of the display board according to an embodiment of the present invention will be described in more detail the process of expressing the effect.

6A to 6E are diagrams illustrating a display effect method in an information display method of an electronic display board according to an embodiment of the present invention.

According to an embodiment of the present invention, the presenting effect method of expressing phrases includes a first method of expressing a phrase in only one line, a second method of expressing a portrait in the entire screen, and a third method of filling the entire screen in a horizontal direction; There is a fourth method of dividing and displaying a screen. Here, the second method and the third method may be applied in the same way. At this time, the maximum number of phrases that can be seen at one time on the LED display board 300 according to the display method is defined as one frame, and the LED display board (300, 1 line 10byte, 2 lines 10byte) of the second stage and 5 columns, as shown in Figure 6a As shown, it is assumed that the expression text is expressed in two frames (611, 612) of 40 bytes.

In the first method, as shown in FIG. 6B, only one line 621 of the first line 621 and the second line 622 of the longitudinal module position is expressed. If one frame is 10 bytes and the number of transmitted phrases is 40 bytes, four frames 623, 624, 625, and 626 wait in the first memory 210 or the second memory 220. In this case, as the number of expressions increases, the number of frames waiting in the first memory 210 or the second memory 220 increases. With the expression effect set in the parameter of the expression phrase packet, a frame waiting in the first memory 210 or the second memory 220 may be continuously displayed only in one line 621 of the vertical expression position during the expression time. .

In the second method, as shown in FIG. 6C, the phrase is displayed in the vertical direction through the LED display board 300, and thus, when the plurality of frames are present, the phrase may move upward when the plurality of frames exist. If one frame is 1 to 20 bytes, and the number of expressions transmitted is 21 to 40 bytes, two frames 635 and 636 wait in the memory. First, 1 to 10 bytes of one frame 611 of FIG. 6A is displayed on the first line 631 displayed through the LED sign 300, and 11 to 20 bytes of one frame 611 are displayed on the two lines 632. Second, 1 to 10 bytes of the two frames 612 of FIG. 6A are displayed on the first line 633, which is displayed through the LED display board 300, and 11 to 20 bytes of the two frames 612 of FIG. 6A are displayed on the two lines 634. do.

In the third method, as shown in FIG. 6D, the phrase is displayed in the horizontal direction through the LED display board 300, and thus, when the plurality of frames are present, the phrase may be moved to the left to naturally display the phrase. If one frame is 1 to 20 bytes, and the number of transmitted phrases is 21 to 40 bytes, two frames 645 and 646 wait in the memory. First, 1 to 10 bytes of one frame 611 of FIG. 6A is displayed on the first line 641 displayed through the LED display board 300, and 1 to 10 bytes of two frames 612 of FIG. 6A are displayed on the second line 642. do. 11 to 20 bytes of one frame 611 of FIG. 6A are displayed on one line 643 of the second screen, and 11 to 20 bytes of two frames 612 of FIG. 6A are displayed on two lines.

In the fourth method, as shown in FIG. 6E, generally, only one main screen is used, and the main screen may be divided into four (651, 652, 653, 654). The information display method of the signboard according to the present invention can set the font size and the display effect of the text to be displayed on each divided screen individually, there is an advantage that can be applied to various types of display situation.

If the maximum number of phrases that can be displayed on each of the left and right split screens 651 and 652, the fixed screen 653, and the main screen 654 is 1 frame, the left split screen 651 and the right split screen ( 652) and the number of phrases to be displayed on the fixed screen 653 should be the same as the size of one frame of each divided screen. However, the number of expressions on the main screen 654 does not need to consider the size of the frame.

The display text of the split screen is transmitted one frame in the order of the left split screen 651, the right split screen 652, and the fixed screen 653. At this time, the frame of the screen which is not used is abbreviate | omitted. On the other hand, the remaining frames other than the frame of the split screen is the main screen expression phrase.

The split screen can be divided into left, right or both sides by setting "Number of split screen modules" in the expression text parameter. For example, if the number of split screen modules is 01H, the left split screen 651 may be left by one module, and if it is 20H, the right split screen 652 may be two modules at the right end. In addition, the left and right split screens 651 and 652 can set the same effect in the "split screen effect". At this time, the number of phrases on the left and right split screens 651 and 652 is fixed to 1 frame, which is the size of one split screen.

The fixed screen 653 sets the display method parameter to "landscape" or "portrait" to display the text throughout the screen, and the "vertical display position" to "vertical module" in the "first line". Set to a value between "number". At this time, if the "vertical display position" is 0, there is no fixed screen, only the main screen. If 1, the first line is the fixed screen 653, and the remaining vertical module number area is the main screen 654. The fixed screen 653 can only be displayed as a still picture without effect. At this time, the number of stationary screen 653 is fixed to one frame, the size of one fixed screen 653.

The main screen 654 is the main screen 654 except for the left and right split screens 651 and 652 and the fixed screen 653 in the full screen.

Looking at the LED display board 300 is actually expressed as shown in Figure 7a to 9b.

7A to 9B are diagrams illustrating an example of expression of an LED display board according to parameter setting of a message packet.

7A and 7B illustrate the first method (c), the second method (d), and the third method (e) of FIG. 6 described above by setting the parameter of the message packet of (a), the phrase color and the display phrase of (b). It is shown the LED display board 300 is expressed by. At this time, the expression phrase displayed on the LED sign 300 is an emergency phrase.

In (c), if you look at the parameter table in (a), you set the "11 vertical display position" to "0" (the first module) so that it is displayed only in the line of the first module position. It can also be displayed long after the screen effect value ".

Looking at (d), look at the parameter table of (a) and set "11 vertical display position" to '0' (the first module). The text is displayed from the first module to the end of the right screen, and again, the text of one frame is displayed from the beginning of the second module to the end of the right screen. In this case, if there are more phrases to be processed than the number of phrases expressed on the entire screen, two frames of phrases may be subsequently displayed on the next screen in the same manner. In addition, when the effect value is given as "up," it may be displayed on the screen in the received order.

Looking at (e), if you look at the parameter table of (a), set "11 vertical display position" to '0' (the first module). If the received text is 1 frame, it is expressed in the same way as the vertical display method. On the other hand, if the received text is more than two frames, the display position of the text is determined by dividing the number of texts to be processed by the number of frames to be displayed. At this time, the phrase of the position smaller than the number of frames is displayed on the first line, and the phrase of the large position follows the second line.

8A and 8B illustrate the LED display board (c) which is divided into one line from left to right in the fourth method of FIG. 6 described above by setting the parameter of the message packet of (a), the phrase color and the display phrase of (b); , And shows an LED display board (d) that is left divided in the horizontal direction. At this time, the expression phrase displayed on the LED sign 300 is an emergency phrase.

Referring to (c), "4.3 phrase display direction" is set to "0" (1 line), "11 vertical display position" to "1" (second module), and the left and right module division number is set to 1. At this time, the emergency text is expressed only in the line of the second module position. The left 1 module and the right 1 module are moved upward, and the four modules in the middle move left to express received text. At this time, since the number of phrases in the split screen is 2 bytes (1 module) on the left and 2 bytes (1 module) on the right, the text on the left is "AB" and the text on the right is "CD". It is a phrase that is expressed in.

Referring to (d), "4.3 phrase display direction" is set to "2" (horizontal direction), "11 vertical display position" to "2" (the first module), and the right module division number is set to 2. At this time, the left two columns and two columns become the split screen, and the right two columns and four columns become the main screen. Since the number of phrases in the split screen is 8 bytes (4 modules), it is displayed by moving "ABCDEFab" up. The number of phrases in the main screen is the remaining number of phrases except for the number of phrases in the split screen.

9A and 9B show an LED display plate (c) showing a line, a main screen, and one line in the fourth method of FIG. 6 described above by setting the parameter of the message packet of (a), the phrase color and expression phrase of (b), and It shows the LED display board (d) which is divided in the left direction and expressed. At this time, the expression phrase expressed on the LED sign 300 is a general phrase.

Referring to (c), "4.3 phrase display direction" is "0" (1 line), "11 vertical display position" is "0". Set "4.1 Stationery Font Size" to '0' (32 fonts). From the first module position, the text is displayed with the size of Korean 32x32 font and English 16x32 font moving to the left.

Referring to (d), "4.3 phrase display direction" is set to "2" (horizontal direction), "11 vertical display position" to "1". At this time, if the vertical display position in the horizontal direction or the vertical direction is not 0, a module having a position smaller than the set value is displayed as a stationary effect on the fixed screen, and the modules above the set value become the main screen. In this case, since the number of phrases on the fixed screen is 12 bytes (1 column 6 columns), "ABCDEFabcdef" expresses the stop effect. In addition, the number of phrases on the main screen is the remainder of the total number of phrases received except the number of phrases on the fixed screen.

As described above, the information display system and the information display method of the LED display board according to the present invention simply and easily express the phrase on the LED display board by providing an operating program to the host PC and simply setting the effect of the display phrase and the expression statement through the host PC. You can.

100: host PC 200: control module
300: LED display plate 210: first memory
220: second memory 230: input / output interface
240: first switch unit 250: second switch unit
260: control unit

Claims (8)

A plurality of LED lamps arranged in a matrix form to display an LED display panel;
A host PC provided with an operating program to input an expression to be expressed through the LED display board on the operating program, and transmit the inputted expression to the outside according to a transmission protocol; And
Sends a response message to the host phrase received from the host PC to the host PC, determines whether the input phrase is a general phrase and stores it in a different memory depending on whether it is a regular phrase, and stores the memory at a preset time. A control module configured to display an expression phrase stored in the LED display board; Including;
The control module,
A nonvolatile first memory in which a general phrase is stored;
A volatile second memory in which an emergency phrase is stored;
A first switch unit for testing a display unit of the LED display and setting a communication speed;
A second switch unit which sets an address when at least one of the LED display boards is provided;
An input / output interface for transmitting / receiving an expression sentence input through the host PC according to a transmission protocol; And
Determining whether the expression phrase input through the host PC is a general phrase or an emergency phrase, and stores the expression phrase input through the host PC at the preset time, respectively, in the first memory and the second memory. Control unit; Information display system of the LED sign, characterized in that comprises a. delete The method of claim 1, wherein the input and output interface,
Information display system of the LED signboard, characterized in that any one of the serial communication, wired LAN, wireless LAN, Bluetooth, SD memory and PLC communication. The method of claim 1, wherein the transmission protocol,
Including command part and response part,
The information display system of the LED signboard, characterized in that for setting the emergency phrase, general phrase and expression effect in the parameter of the message packet of the command portion of the transmission protocol to the control module. delete delete delete delete

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