KR20220142010A - Easy information display system for led electronic displays - Google Patents

Abstract

The present invention relates to a convenient information display system for an LED electronic display, which is able to conveniently and easily display a desired phrase through the LED electronic display. According to the present invention, the convenient information display system for an LED electronic display comprises: the LED electronic display having a plurality of LED lamps arranged in a matrix shape and displaying a phrase; a host PC provided with an operation program to input the phrase to be displayed through the LED electronic display into the operation program, and transmitting the inputted phrase to the outside in accordance with a transmission protocol; and a control module transmitting a response message to the phrase received from the host PC to the host PC, determining whether the inputted phrase is a general phrase, storing the phrase in different memory accordingly, and allowing the phrase stored in the memory to be displayed through the LED electronic display at a preset time. Accordingly, the present invention is able to provide an operation program to a host PC, conveniently set a phrase and effects of the phrase through the host PC, and conveniently and easily display the phrase on the LED electronic display.

Description

Easy information display system for led electronic displays

The present invention relates to an LED signboard, and in particular, a phrase to be expressed through an LED signboard can be expressed simply and easily.

It is related to the information display system of the LED signboard that can be used.

LED (Light Emitting Diode) refers to a light emitting diode, which is a semiconductor device that emits light. Red, green, blue, yellow

It is widely used in various electronic products and electronic display panels such as instrument panels.

Among them, the LED signboard arranges a number of LEDs in a matrix form, and a number of LEDs arranged in a matrix form display an image.

By forming pixels for display, image display becomes possible. These LED signboards can be used for advertisements or various types of information.

It is installed and used in various forms outside or inside the building for delivery.

These LED signboards are widely used to guide and promote announcements and publicity matters in various businesses and government offices.

When using a conventional poster or placard, it is only difficult to see notices and publicity at night.

In addition, there is a problem that the contents are not well understood from a distance even during the week, and it is necessary to print and present them one by one.

because there was discomfort.

Therefore, the related industry has developed and presented various electronic sign boards, but it is difficult to apply the existing pixel and LED modules to the sign board.

There is a problem in that it is not easy to control the module in government offices and businesses. This is because there is no standard for LED signage, so each

Each module maker is making various types of modules, and accordingly, the method of expressing the wording depends on the LED signboard to be used.

This is because each module maker uses a different method.

The problem to be solved by the present invention is to be able to control LED signboards made by different companies through one host PC.

An object of the present invention is to provide an information display system of an LED signboard.

In addition, the problem to be solved by the present invention is to express the phrase simply and easily even when a phrase that needs to be expressed urgently occurs.

An object of the present invention is to provide an information display system of an LED signboard that can be output.

In addition, the problem to be solved by the present invention is to reduce the spread of light by adjusting the brightness of the LED display module according to the surrounding environment.

And it aims to provide an information display system of the LED signboard that can increase the lifespan of the LED display module.

In the information display system of the LED signboard according to the present invention, a plurality of LED lamps are arranged in a matrix form to display expression phrases.

For shipment, an LED signboard and an operating program are provided to display phrases to be expressed through the LED signboard.

To the host PC and host PC that input on the program and transmit the input expression phrase to the outside according to the transmission protocol

Sends a response message to the expression phrase received from the host PC to the host PC, and determines whether the input expression phrase is a general phrase

However, it is stored in different memories depending on whether it is a general phrase or not, and stored in the memory at a preset time.

It includes a control module that allows the expression phrase to be expressed through the LED signboard.

In this case, the control module includes a non-volatile first memory in which a general phrase is stored, and a volatile second memory in which an emergency phrase is stored.

Wow, the first switch unit that tests the display of the LED signboard and sets the communication speed, and when there is more than one LED signboard

The second switch unit for setting the dress, and the expression phrase input through the host PC is transmitted and received according to the transmission protocol.

determines whether the expression input through the input/output interface and the host PC is a general phrase or an emergency phrase, and

It is stored in the memory and the second memory, respectively, and the expression phrase input through the host PC is displayed at a preset time.

It is characterized in that it includes a control unit.

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 transport protocol includes a command part and a response part, and the parameter of the message packet of the command part of the transport protocol is

Emergency phrases, general phrases and expression effects are set and transmitted to the control module.

The present invention provides an operating program to the host PC and easily sets the expression phrase and the effect of the expression phrase through the host PC.

You can display text on the LED signboard simply and easily by setting it.

In addition, the present invention has to be urgently expressed by having a first memory and a second memory for storing the general phrase and the emergency phrase, respectively.

In the case of an emergency phrase, an emergency phrase can be expressed without the need to delete the general phrase being expressed.

In addition, the present invention sets the parameters of the message packet according to the transmission protocol between the host PC and the control module in real time.

It is possible to express the phrase or image you want to freely express in real time through the LED signboard.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, an embodiment of the present invention

It can be modified in various forms, and in such a way that the scope of the present invention is limited due to one embodiment described in detail below.

should not be interpreted One embodiment of the present invention is provided to those of ordinary skill in the art to which the present invention pertains.

It is provided to explain the name more easily.

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

Referring to Figure 1, the information display system of the LED signboard according to an embodiment of the present invention is a host PC (100), a control module (200)

and an LED billboard 300 .

The host PC 100 is for inputting an expression phrase to be expressed through the LED sign board 300 . That is, the size of the electric sign board

flag, luminance of the electric sign board, time and day setting to use the electric sign board, general phrase setting, emergency phrase setting, general and emergency text

An input is made for the expression effect of the phrase, etc. Here, the general phrase is continuously expressed through the LED signboard.

is a phrase, for example,

Say phrases such as "No shoulder parking". On the other hand, the emergency phrase is a phrase that is temporarily expressed through the LED signboard, for example,

Says phrases such as "The owner of number 1004, please remove the car." At this time,

Images or texts that can be included in general and emergency phrases are characters supported by Windows O/S.

Select and express various fonts quickly and easily using the editing window, or simply and easily input using the graphic tool

can do. The expression phrase input in this way is transmitted to the control module 200 according to the transmission protocol. In this case, the host

The PC 100 is provided with an operating program, and general phrase setting, emergency phrase setting, etc. input through the operating program is a command

It can be set in the parameters of the fisherman's message packet and transmitted.

The control module 200 receives the expression phrase input through the host PC 100 and transmits a response message thereto.

In addition, it is determined whether the input expression phrase is a general phrase or an emergency phrase, stored in different storage units, and stored at a preset time.

The expression phrase stored in the liver is controlled to be expressed through the LED signboard 300 . About the configuration of this control module 200

will be described later.

In the LED signboard 300 , a plurality of LED lamps are arranged in a matrix form, and according to the control of the control module 200 , the table

express the exit

2 is a diagram 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 includes a first memory 210 , a second memory 220 , and an input/output interface.

It may include an ace 230 , a first switch unit 240 , a second switch unit 250 , and a control unit 260 .

The first memory 210 is a memory in which general phrases are stored. of general phrases continuously expressed through the LED signboard 300

It is preferable that the first memory 210 is a non-volatile memory in which stored data is not deleted even when power is not supplied.

will be.

The second memory 220 is a memory in which emergency phrases are stored. In case of urgency, special emergency phrases that are expressed in a short time and then deleted

The constellation of the second memory 220 may be a volatile memory.

The input/output interface 230 transmits the expression phrase input through the host PC 100 to the command unit according to the transmission protocol.

It can receive a message packet and transmit a message packet in response to it. This input/output interface 230 is

In general, it can have two COM1 and COM2 communication ports, and each can have a receive buffer of 1024 bytes. At this time,

It is desirable that the receive buffer be implemented as a ring buffer, and even if data of 1024 bytes or more is transmitted, it will be completely processed.

can At this time, the input/output interface 230 is a serial communication (RS-232, RS-422, RS-485), wired LAN, wireless LAN,

Both wired and wireless communication such as Bluetooth and SD memory are available.

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

The second switch unit 250 controls one or more LED signage 300 by setting the input/output interface 230 to serial communication.

You can set the address if you need to.

The control unit 260 determines whether the expression phrase input through the host PC 100 is a general phrase or an emergency phrase,

If it is a phrase, it may be stored in the first memory 210 , and if it is an emergency phrase, it may be stored in the second memory 220 . Also, control

The unit 260 controls the expression phrase stored at a preset time to be displayed through the LED signboard 300 . one

On the other hand, when general phrases are being expressed through the LED signage 300, and emergency phrases need to be expressed, the general phrases that are expressed

Do not delete, but overlap so that emergency phrases are expressed, or display general phrases and emergency phrases at the same time by dividing the screen

can be made to come out.

The control module 200 configured as described above transmits and receives messages to and from the host PC 100 according to the transmission protocol, which

A more detailed look is as follows.

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

A diagram showing a message packet in the response part of the transport protocol.

First, before looking at FIGS. 3 and 4, looking at the transmission protocol according to the present invention, the transmission protocol according to the present invention

The protocol basically transmits and receives only message packets. However, industrial sites or communication lines with many noise generating devices

In an unstable environment, error handling can be reinforced by applying CRC 16. Because the price is cheap and the system

Serial communication is widely used in many places due to its simple nature, but serial communication is not affected by external influences due to its simple configuration.

This is because it is weak to noise by receiving a lot of noise. The transmission protocol according to the present invention is a command part (Command Part) and

It consists of a reply part.

Referring to FIG. 3 , the message packet of the command unit is generally transmitted from the host PC 100 to the control module 200 .

can Meanwhile, in FIG. 4 , the message packet of the response unit is generally transmitted from the control module 200 to the host PC 100 .

can be Since COM1 and COM2 of the input/output interface 230 process the message packet identically, which communication format

The same function can be performed by using At this time, the message packet of the command unit is sent to the control module 200 within 50 ms.

If continuous data is not received, treat it as an error and prepare to receive a new message. However, in the first memory 210

When sending the stored general phrase, it is necessary to write the flash ROM to the control module 200, so it responds after a maximum of 100 ms.

You can send a reply message. In addition, when an emergency phrase is transmitted to the first memory 210, a response message is immediately returned.

Messages can be sent between The upper 12~15bits (LEN Bit[15:12]) of these message packets specify the packet state.

It can be used for one purpose. That is, you can select and apply response message processing, CRC 16 error detection, and DLE byte stuffing.

can Here, DLE Byte Stuffing is a method of indicating the start and end of a frame in the HDLC protocol.

As a result, specific characters such as DLE STX and DLE ETX are used in the ASCII code, but the same character is also used in the actual data body.

In order to prevent the occurrence of an extra DLE, the sender inserts an extra DLE just before the DLE character that appears accidentally.

say

The information display system of the LED sign board 300 according to an embodiment of the present invention as described above is a message packet according to the transmission protocol.

By sending and receiving the kit, you can set general phrase settings, expression phrase settings, and expression effects (color selection, screen division, etc.) of the LED signboard 300.

It can be set, and it is also possible to check the uniformity and defective state of the LED lamp.

The information display method of the LED signboard according to an embodiment of the present invention will be described as follows.

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

Referring to FIG. 5 , an expression phrase to be expressed through the LED sign board 300 is prepared ( S501 ). Expression phrases are images, text,

It can be written in the form of animation. In the case of text writing, write the expression you want to express and

Set and save the color, background color, and display location. On the other hand, in the case of creating an image or animation, use paint

Then, the color, background color, and location of the image to be displayed are set and saved.

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

After that, the expression effect of the written expression phrase is selected (S503). Here, the expression effect is, for example, blinking in the LED signboard 300 .

It refers to effects such as tightness, vertical or horizontal movement, and split expression.

Thereafter, by previewing the written expression phrase (S504), it is determined whether or not to be corrected (S505), and when the correction is not necessary, the written

The expression phrase is transmitted to the control module 200 (S506). On the other hand, if correction is necessary, the expression phrase is rewritten (S501).

However, when modifying the expression effect, the expression effect is selected (S503).

It is determined whether the transmitted expression phrase is a general phrase (S507), and if it is determined as a general phrase, it is stored in the first memory 210 (S508)

It is expressed through the LED signboard 300 (S509). On the other hand, if the transmitted expression phrase is not a general phrase but an emergency phrase, the second memory

It is stored in 220 (S510).

After that, when a case occurs that an emergency phrase needs to be expressed (S511), the emergency sentence without deleting the general phrase that was expressed

Express the phrase (S512). In addition, general phrases and emergency phrases may be simultaneously displayed on the LED display board 300 at the same time. for example

Uh, line 1 is for general phrases and line 2 for emergency phrases, or divide the screen so that the left screen is for general text and right

The side can be controlled so that the emergency phrase is expressed. On the other hand, if emergency phrases do not need to be expressed, general phrases are

It is expressed as it is (S509).

It is determined whether the emergency phrase has been expressed for a preset time (S513), and when the preset time comes, the general phrase is displayed again.

to express (S514). On the other hand, if it is determined that the preset time has not been reached, the emergency phrase is displayed until the preset time is reached.

to express

The process of displaying the expression effect in the information expression method of the electric signboard according to an embodiment of the present invention as described above in more detail.

Let's take a look.

6a to 6e are diagrams showing an expression effect method in the information expression method of the electric sign board according to an embodiment of the present invention;

to be.

The expression effect method of the expression phrase according to an embodiment of the present invention is the first method of expressing the phrase only on one line and the entire screen

There are a second method of expressing in the vertical direction, a third method of filling the entire screen in the horizontal direction, and a fourth method of dividing the screen and expressing it. Here, both the second method and the third method may be equally applied. At this time, depending on the expression method, LED

The maximum number of phrases that can be displayed on the billboard 300 at one time is defined as one frame, and the LED signboard 300, 1 line of 2 columns and 5 columns

In 10 bytes, 2 lines 10 bytes), as shown in Fig. 6a, the expression phrases are expressed in 2 frames (611, 612) of 40 bytes.

assume that

In the first method, as shown in FIG. 6B , only one line 621 among 1 line 621 and 2 lines 622 in the longitudinal module position is used.

express the phrase 1 frame is 10 bytes, and if the number of transmitted expressions is 40 bytes, 4 frames (623, 624, 625, 626) are

The first memory 210 or the second memory 220 waits. At this time, as the number of expression phrases increases, the first memory 210 or the second memory

The number of frames waiting in the memory 220 is increased. Expression effect set in the parameter of expression phrase packet, expression time

During the period, the waiting frame in the first memory 210 or the second memory 220 continues only in one line 621 of the vertical display position.

can be expressed in

The second method, as shown in FIG. 6c, expresses the text in the vertical direction through the LED sign board 300, so a plurality of frames

If you use the effect of moving upwards when there is, you can express a phrase that follows naturally. 1 frame is 1~20 bytes

, and if the number of transmitted expression phrases is 21 to 40 bytes, two frames 635 and 636 wait in the memory. first LED light

1 to 10 bytes of the 1 frame 611 of FIG. 6A in the 1 line 631 expressed through the plate 300, and the 1 frame 611 in the 2 line 632

11~20 bytes are expressed. Second, in the first line 633 expressed through the LED signboard 300, the second frame 612 of FIG. 6A is

11 to 20 bytes of the 2 frame 612 of FIG. 6A are expressed in 1 to 10 bytes and 2 lines 634 .

The third method, as shown in FIG. 6d, expresses the phrase in the horizontal direction through the LED sign board 300, so a plurality of frames

If you use the effect of moving to the left when im is present, you can express a phrase that follows naturally. 1 frame is

If it is 1 to 20 bytes, and the number of transmitted expression phrases is 21 to 40 bytes, two frames 645 and 646 wait in the memory. First

1 to 10 bytes of the 1 frame 611 of FIG. 6A is in the 1st line 641 expressed through the LED sign board 300, and the 2nd line 642 is the 1st line 641 of FIG. 6a.

1 to 10 bytes of 2 frames 612 are displayed. In line 1 643 of the second screen, 11 to 20 bytes of 1 frame 611 of FIG. 6A, 2

11 to 20 bytes of the second frame 612 of FIG. 6A are expressed in the input.

In the fourth method, as shown in FIG. 6E , in general, only one main screen is used, and a maximum of four main screens are used.

It can be used by dividing by (651, 652, 653, 654). The information display method of the electric sign according to the present invention is divided into each screen

It is possible to set the font size and expression effect of the text to be displayed individually, so it can be applied to various types of expression situations.

There are advantages that can be

The maximum text 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

If the number is one frame, the number of expression phrases in the left split screen 651, right split screen 652, and fixed screen 653 is

It must be the same as the frame size of each divided screen. However, the number of phrases displayed on the main screen 654 is the size of the frame.

You don't have to consider the gear.

The expression text of the split screen is transmitted one frame at a time in the order of the left split screen 651, the right split screen 652, and the fixed screen 653.

do. In this case, the frame of the screen that is not used is omitted. On the other hand, except for the frame of the split screen, the remaining frames are

This is a printable expression phrase.

For split screen, if you set “number of split screen modules” in the expression phrase parameter, the screen is divided into left, right or both sides.

Can be used. for example,

If the "number of split screen modules" is set to 01H, the left split screen 651 is displayed by one module to the left.

and 20H, it can be the right split screen 652 by 2 modules from the right end. Also, left and right split screen

(651, 652) can set the same effect in "Split screen effect". At this time, the left and right split screens 651 and 652

The number of texts is fixed at 1 frame, which is the size of one split screen.

The fixed screen 653 is displayed on the entire screen by setting the "expression method" to "horizontal direction" or "vertical direction" in the expression phrase parameter.

to express the words,

Set "vertical display position" to a value between "first line" and "number of vertical modules". At this time,

If the "vertical display position" is 0, there is no fixed screen and only the main screen exists. Also, if 1, the first line is fixed.

surface 653 , and the remaining number of vertical modules becomes the main screen 654 . The fixed screen 653 is only a still image without any effect.

can be expressed. At this time, the number of phrases on the fixed screen 653 is fixed to one frame, which is 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.

becomes this

Looking at the LED sign board 300 on which the expression effect is actually expressed, it is shown in FIGS. 7A to 9B.

7A to 9B are diagrams illustrating examples of display of an LED signboard according to parameter setting of a message packet.

7a and 7b are the parameters of the message packet of (a) and the first room of FIG. 6 described above with the text color and expression phrase settings of (b).

The method (c), the second method (d), and the third method (e) show the LED signage 300 displayed. At this time, the table on the LED signboard 300

The expression phrases that appear are emergency phrases.

Looking at (c), if you look at the parameter table in (a), “11 vertical display position” is set to '0' (the first module) and is above the first module.

It was made to be displayed only on the line of value, and the 4 received frames were continuously displayed to the left by "8 main screen effect value".

may go out

Looking at (d), if you look at the parameter table in (a), "11 vertical display position" is set to '0' (the first module). first module

The text is expressed from the beginning to the end of the right screen, and again 1 frame is displayed on the entire screen from the beginning of the second module to the end of the right screen.

Express random phrases. At this time, if there are more phrases to be processed than the number of phrases displayed on the entire screen, the same

In this way, the text of 2 frames can be continuously expressed. In addition,

If you give an effect value as "Up", it is displayed on the screen in the order it was received.

can be expressed.

Looking at (e), if you look at the parameter table in (a), "11 vertical display position" is set to '0' (the first module). received door

If the sphere is one frame, it should be expressed in the same way as in the vertical direction. On the other hand, if the received text is more than 2 frames,

The number of texts to be read is divided by the number of frames to be displayed to determine the display position of the text. At this time, at a position smaller than the number of frames

The text is displayed on the first line, and the text in a large position is displayed long on the second line.

8a and 8b are the parameters of the message packet of (a) and the text color and expression phrase setting of (b) in the fourth room of FIG. 6 described above.

The LED signboard (c), which is divided into left and right for one line by the law, and the LED sign displayed by dividing the left side in the horizontal direction

The plate (d) is shown. At this time, the expression phrase displayed on the LED signboard 300 is an emergency phrase.

Looking at (c),

"4.3 Text expression direction" is '0' (1 line),

Set "11 vertical display position" to '1' (second module), left and right

Set the number of module divisions to 1. At this time, the emergency phrase is displayed only in the line of the second module position. 1 module on the left and 1 module on the right

The module is displayed while moving upward, and the four middle modules can display the received phrase while moving to the left. At this time,

Since the number of phrases in the split screen is 2Bytes on the left (1 module) and 2Bytes on the right (1 module), the text on the left is “AB” and the text on the right is

All other phrases other than "CD" become the phrases displayed on the main screen.

Looking at (d),

"4.3 Text expression direction" is '2' (horizontal direction),

Set "11 vertical display position" to '2' (the first module), and

Set the number of module divisions to 2. At this time, the left 2nd column 2nd column becomes the split screen, and the right 2nd 2nd column 4th column becomes the main screen. Division

Since the number of phrases on the screen is 8 Bytes (4 modules), “ABCDEFab” is displayed while moving upwards. The number of phrases on the main screen is the total number

It is the remainder after subtracting the number of phrases in the split screen from the number of received phrases.

9a and 9b are the parameters of the message packet of (a) and the text color and expression phrase setting of (b) in the fourth room of FIG. 6 described above.

One-line, LED sign (c) showing the main screen, and an LED sign (d) that is divided and displayed horizontally to the left

it will be expired At this time, the expression phrase displayed on the LED signboard 300 is a general phrase.

Looking at (c),

"4.3 Text expression direction" is '0' (1 line),

Set "11 vertical display position" to '0'.

"4.1 Stationery font size"

Set to '0' (32 fonts). From the first module position, the text moves to the left in the size of Korean 32x32 font and English 16x32 font.

It is expressed while moving.

Looking at (d),

"4.3 Text expression direction" is '2' (horizontal direction),

Set "11 vertical display position" to '1'. In this case, the horizontal direction

In the vertical direction, if the vertical display position is not 0, the module with a position less than the set value is displayed as a static effect on the fixed screen.

and modules above the set value become the main screen. At this time, since the number of texts on the fixed screen is 12 bytes (1 column, 6 columns),

"ABCDEFabcdef" expresses the stop effect. In addition, the number of texts on the main screen varies from the total number of received texts to the number of texts on the fixed screen.

excluding the number of spheres.

As described above, the information display system and information display method of the LED signboard according to the present invention provides an operating program to the host PC.

By providing and setting expression phrases and effects of expression phrases easily through the host PC,

phrases can be expressed.

Claims (3)

LED signboard in which a plurality of LED lamps are arranged in a matrix form to express expression phrases;
An operation program is provided, and the expression phrase to be expressed through the LED signboard is displayed on the operation program.
a host PC that inputs and transmits the input expression phrase to the outside according to a transmission protocol; and
A response message to the expression phrase received from the host PC is transmitted to the host PC, and the input expression phrase is
It is determined whether it is a normal phrase, stored in different memories depending on whether it is a normal phrase or not, and recalled at a preset time.
a control module for allowing expression phrases stored in the memory to be displayed through the LED signboard; includes,
The control module is
a non-volatile 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 the display unit of the LED sign board and setting a communication speed;
a second switch unit for setting an address when there is more than one LED signboard;
an input/output interface for transmitting and receiving expression phrases input through the host PC according to a transmission protocol; and
It is determined whether the expression phrase input through the host PC is a general phrase or an emergency phrase, and the first memory and the second
Control to store each in memory and display the expression phrase input through the host PC at a preset time
wealth; Information display system of the LED signboard, characterized in that it comprises a. The method of claim 1, wherein the input/output interface comprises:
characterized in that any one of the serial communication, wired LAN, wireless LAN, Bluetooth, SD memory and PLC communication
Information display system of LED signage. The method of claim 1, wherein the transport protocol comprises:
It includes a command part and a response part,
By setting an emergency phrase, a general phrase, and an expression effect in the parameter of the message packet of the command part of the transport protocol,
Information display system for LED signage, characterized in that it is transmitted to the control module.