KR20140005309U - Bus information terminal display board system using mobile communications - Google Patents

Abstract

The present invention discloses a bus display information display board using a mobile device. A bus operation information display board system using LEDs according to an embodiment of the present invention includes a main control unit for receiving bus operation information from the control center by performing wireless communication with the control center and processing the received information to generate image data, Wealth; A display controller for extracting RGB color data from the image data received from the main controller and rearranging the RGB color data according to the size of the LED module; And an LED display unit for receiving the rearranged RGB color data from the display controller and driving the LED module. The main controller includes an HDMI (High-Definition Multimedia Interface) port And is connected to the display control unit through the HDMI port and transmits the image data to the display control unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus display apparatus,

The present invention relates to a bus driving information display electric signboard system for controlling an electric signboard for displaying bus operation information using an image or text by using an LED (Light Emitting Diode), a liquid crystal display (LCD) And more particularly, to a bus operation information display panel system that can be controlled more quickly, accurately, and conveniently using a mobile device.

With the development of public transportation, buses play a big role as a transportation means of public transportation, so that it is very important for the convenience of users to quickly and accurately convey bus operation information.

Especially, in recent years, there has been an increase in the installation of electric signboards which transmit bus operation information to users in real time by installing a bus sign information display board which displays information on the arrival time of each bus in the bus stop in connection with the control center.

Currently, the main controller for controlling bus information is a mainboard of a desktop computer or an industrial computer based on a Windows operating system.

However, there is a problem that the window operating system in the above-described bus driving information display panel is basically complicated and large in capacity.

Although the window operating system of the main controller has a program capable of performing a number of functions, in actual operation, only a part of the window operating system is used in operating the bus driving information display board.

Therefore, there is a problem that the main controller used in the present bus information information display board has too many unnecessary hardware and software which are not actually used.

That is, since the conventional main controller is loaded with heavy hardware and operating system which is not directly used for operation and operation of the bus driving information display board, the current bus driving information display board has a large external size in comparison with the function, Is frequently generated.

In addition, since the bus display information display board is installed outside the bus, the temperature and humidity changes and various pollutants depending on the season are vulnerable to operation under severe environmental conditions In such a harsh environment, there is a desperate need for a means for more stably and efficiently operating and operating the bus sign information display board.

Therefore, the present invention is based on the technology of the LED traffic information display board system using the mobile device, which is claimed by the inventor of the patent application 10-2013-0019359, and it is possible to transmit the quick and accurate bus operation information to the user, Stability, and appearance of the bus.

Patent application 10-2013-0019359: LED traffic information display board using mobile device

The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to provide an I / O port (Input / Output Digital Port) having functions necessary only for operation and operation of a bus driving information display panel, And to provide a bus operation information display board which can improve the safety of operation and reduce the occurrence of errors.

It is another object of the present invention to provide a bus driving information display board which can greatly reduce unnecessary hardware parts configured in a conventional desktop or industrial computer, simplify the system configuration, and miniaturize the hardware unit.

Another object of the present invention is to improve the function of the bus information display board and to simplify the operation method by using the mobile device as the main controller by attaching the mobile device to the bus information display board.

Another object of the present invention is to improve the function of the bus driving information display board by utilizing wireless communication (for example, Wi-Fi communication) by using bus operation information received from the control center as a main controller by combining mobile devices .

Another object of the present invention is to make it possible to reduce the occurrence of errors in the bus information display board and to facilitate maintenance in the event of an error.

Another object of the present invention is to slim the display board of bus information information to improve aesthetics and reduce the manufacturing cost.

According to an aspect of the present invention, there is provided a bus operation information display board system, which performs wireless communication (e.g., Wi-Fi communication) with a control center to receive bus operation information from the control center, A display unit for extracting RGB color data from the received image (image or text data) from the main control unit and rearranging the RGB color data according to the size of the display device, And a display unit for receiving the rearranged RGB color data from the display controller and driving the display device.

Preferably, the main control unit is a mobile device that includes a high-definition multimedia interface (HDMI) port and is connected to the display control unit through the HDMI port and transmits the image (image or text) data to the display control unit.

In this case, the display control unit may include an HDMI receiver for extracting RGB color data, a clock signal, and a synchronization signal from the received image (image or text) data when the image (image or text) data is received from the HDMI port, And an FPGA (Field Programmable Gate Array) for synchronizing the color data with the clock signal and rearranging the RGB color data according to the size of the display unit.

Also, the main controller includes a mini (or micro) USB port that supports a MHL (Mobile High-definition Link) function, and is connected to the display controller through the mini (or micro) And may transmit the data to the display control unit.

In this case, the display control unit may include an MHL-HDMI bridge for converting image (image or text) data in the MHL format into the HDMI format from the mini (or micro) USB port, An HDMI receiver for extracting RGB color data, a clock signal, and a synchronization signal from the received image (image or text) data when the converted image (image or text) data is received, and an HDMI receiver for synchronizing the RGB color data with the clock signal, And an FPGA for rearranging the RGB color data according to the size of the display unit.

According to the present invention, an I / O port (Input / Output Digital Port) is built in so as to have functions necessary only for operation and operation of the bus information information display board, and by using the operating system corresponding thereto, safety of operation is improved, There is an effect that can be reduced.

Further, unnecessary hardware parts configured in the conventional desktop or industrial computer are largely eliminated, so that the system can be easily configured and the main controller can be greatly miniaturized.

In addition, by using a portable mobile device as a main control unit, it is possible to simplify the operation and operation of the bus driving information display board.

This design is based on an embedded system using an ARM (Advanced RISC Machine) processor instead of a chipset used in a general PC, and a suitable embedded operating system It is not as large and complex as the conventional Windows operating system.

Accordingly, it is possible to greatly reduce the occurrence of errors in the operation of the bus display information display board, and to facilitate the maintenance in the event of an error.

In addition, it is possible to manufacture the bus display information display panel in a slim form and to match the surrounding environment, thereby reducing the manufacturing cost.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the entire configuration of a bus driving information display board system using LEDs as display sub-elements according to an embodiment of the present invention; FIG.
Fig. 2 is a view showing a case where the main control unit in Fig. 1 is used as a tablet PC. Fig.
FIG. 3 is a view showing a case where the main control unit in FIG. 1 is used as a smartphone;
4 is a view showing a case where an LED is used as a display sub-element in Fig.
5 is a view showing a case where an LCD monitor is used as the display sub-element in Fig.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the entire configuration of a bus driving information display panel system using LEDs as display sub-elements according to an embodiment of the present invention; FIG.

1 includes a main control unit 100, a display control unit 200, and a display unit 300.

The main control unit 100 performs wireless communication (e.g., Wi-Fi communication) with a jurisdiction center installed with a bus driving information display board, receives bus driving information from the control center, processes the received driving information, (Image or text) to be displayed in the display unit 300 and outputs the generated data to the display controller 200. [

As the main controller 100, a mobile device including a smart phone 120 and a tablet PC 110 is used.

The display control unit 200 rearranges the image (image or text) data input from the main control unit 100 in accordance with the size and arrangement of the display sub-elements, converts the data into signals suitable for the display sub-elements, 300).

The display control unit 200 includes an HDMI receiver 210 and an FPGA (Field Programmable Gate Array) 220.

The HDMI receiver 210 is connected to the main control unit 100 through a high-definition multimedia interface (HDMI) port and receives video (image or text) data from the main control unit 100. The received video (image or text Extracts the RGB color data, the clock signal (P-Clock), and the synchronizing signals (H-Sync and V-Sync) from the data.

That is, since the purpose of the LED bus driving information display board is to display information visually, the HDMI receiver 210 extracts only video (image or text) data without processing audio data.

The FPGA 220 receives the RGB color data, the clock signal, and the synchronization signal from the HDMI receiver 210, synchronizes the RGB color data with the clock signal, and rearranges the RGB color data according to the size and arrangement of the LED display unit module Then, the RGB color data is converted into serial data through the SHIFT REGISTER 230 and output together with the clock signal and the synchronization signal.

The LED display unit 300 includes an LED module in which LED elements of red, green, and blue are arranged in a matrix form. The LED display unit 300 includes a display unit 200, a display unit 200, And drives corresponding LED elements to display data corresponding to image (image or text) data.

The LED module 320 includes red, green, and blue LED elements arranged in a matrix form, and blinks according to a driving signal from the LED driver 310 to display an image (image or text).

2 is a view showing a case where the main controller 100 in FIG. 1 is used as the tablet PC 110. FIG.

Since the tablet PC 110 is generally provided with an HDMI port and a mini (or micro) USB port, the tablet PC 110 receives bus operation information from the control center through wireless communication (for example, Wi-Fi communication) (Image or text) data for displaying an image after storing it in the internal memory, and transmits the generated image (image or text) data to the HDMI receiver 210 of the display controller 200 through the HDMI port.

The functions of the display control unit 200 and the LED display unit 300 are the same as those in FIG. 1, and a description thereof will be omitted.

FIG. 3 is a diagram illustrating a case where the main control unit 100 of FIG. 1 is used as a smartphone 120. FIG.

The smartphone 120 does not have an HDMI port, and has a mini (or micro) USB port that supports the MHL (Mobile High-definition Link) function because the external size of the smartphone 120 is small.

Accordingly, the smartphone 120 transmits image (image or text) data to the HDMI receiver 210 of the display control unit 200 through the mini (or micro) USB port using the MHL function.

1 and 2, the display control unit 200 may be configured to convert the image (image or text) data of the MHL format from the smartphone 120 into the HDMI format at the front end of the HDMI receiver 210 And an MHL-HDMI bridge 240.

The functions of the display control unit 200 and the LED display unit 300 are the same as those in FIG. 1, so that detailed description thereof will be omitted.

4 is a diagram showing a case where a display unit display element is used as an LED, and a detailed description of the configuration and operation thereof is omitted since it is the same as that of FIG.

5 is a diagram illustrating a case where the display unit is used as an LCD monitor. In the case where the main control unit is used as the tablet PC 110, the display unit is directly connected to the HDMI port. When the main control unit is used as the smartphone 120, And converts it to an HDMI signal and connects it to the LCD monitor.

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 appended claims. Of the applicant's utility model registration.

100: main control unit 110: tablet PC
120: smart phone 200: display control unit
210: HDMI receiver 220: FPGA
230: SHIFT REGISTER 240: MHL-HDMI Bridge
300: LED display part 310: LED driver
320: LED module

Claims (6)

A main controller for performing wireless communication with the control center to receive information from the control center, and processing the received information to generate image data; A display controller for extracting RGB color data from the image data received from the main controller and rearranging the RGB color data according to the size of the display unit; And a display unit for receiving the rearranged RGB color data from the display control unit and driving the display device, the system comprising:
Wherein,
Wherein the display unit is a mobile device which includes an HDMI (High-Definition Multimedia Interface) port and is connected to the display control unit through the HDMI port and transmits the image data to the display control unit. system. The method according to claim 1,
The display control unit,
An HDMI receiver for extracting RGB color data, a clock signal, and a synchronization signal from the received image data when the image data is received from the HDMI port;
And a field programmable gate array (FPGA) for synchronizing the RGB color data with the clock signal and rearranging the RGB color data according to the size of the display unit. . The method according to claim 1,
Wherein,
Wherein the display device is a mobile device that includes a USB port that supports a Mobile High-Definition Link (MHL) function and is connected to the display control unit through the USB port to transmit the image data to the display control unit. Bus service information information display board system. The method of claim 3,
The display control unit,
An MHL-HDMI bridge for converting image data of the MHL format into the HDMI format from the USB port;
An HDMI receiver for extracting RGB color data, a clock signal, and a synchronization signal from the received image data when the image data converted from the MHL-HDMI bridge into the HDMI format is received; And
And an FPGA for synchronizing the RGB color data with the clock signal and rearranging the RGB color data according to the size of the display unit. The method according to claim 1,
The display unit includes:
And the LED is included as a display device. The method according to claim 1,
The display unit includes:
Wherein the display device includes an LCD monitor as a display device.

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