KR20080058844A - Led light using network - Google Patents

Abstract

An LED(Light Emitting Diode) lighting device using a network is provided to display full colors by forming each LCU(Local Control Unit) with a DMX-512 interface module for device compatibility. An LED lighting device includes a remote control unit(10), an NLCU(Network Local Control Unit)(20), an LCU(Local Control Unit), a switching block(50), and an LED lighting unit(40). The remote control unit remotely controls the LED lighting unit. The NLCU transmits a signal of the remote control unit through the network. The LCU is connected by a cascade communication method and composed of blocks(30a-30n) to output signals for controlling LEDs of the LED lighting unit. The switching block has switching units(50a-50n) to output switching signals for turning on the LEDs according to the signals of the LCU. The LED lighting unit controls the LEDs to display a screen according to the signals of the switching block.

Description

LED lighting device using network {LED light using network}

Figure 1a is a circuit block diagram of an LED (LED) lighting apparatus using a network according to an embodiment of the present invention,

Figure 1b is a block diagram of the LED (LED) lighting apparatus using the network of Figure 1a

2 is a block diagram of an NLCU;

3 is a block diagram of an LCU;

4 is a block diagram of a switching unit;

5 is a flowchart illustrating a control method of the LED lighting apparatus using the network of the present invention.

Description of the main symbols in the drawings

100: lighting device

10: remote control unit

20: NLCU block 20a to 20n: NLCU

21: NLCU control unit 22: DMX transceiver

23: DMX input port 24: DMX output port

25: RS232 Transceiver 26: RS232 Port

27: storage unit 28: channel and variable selection unit

30: LCU block 30a to 30n: LCU

31: LCU control unit 32: DMX transceiver

33: header pin 34: DMX input

35: DMX output section 36: LCU selection section

40: LED lighting unit

50: switching block 50a to 50n: switching unit

51: switching module 52: power and DMX input module

53: Header Pin 54: Power and DMX Output Module

55: regulator

60a to 60n: LED block

The present invention relates to an LED (LED) lighting apparatus, and more particularly to a LED lighting apparatus using a network that can be remotely controlled, and can be used to replace a signboard such as a signboard or neon sign.

In general, shops use general signs, LED display boards, or neon sign billboards, and neon signs are used to produce lights that move with music in nightclubs.

By the way, in the case of the signboard of the prior art described above requires a light such as a general lamp in a dark place, a neon sign requires a high voltage, so frequent failures occur and a lot of electricity consumption has a problem.

In addition, the sign and the neon sign has a problem that it is impossible to change the display contents once installed.

Therefore, the present invention is to solve the above-mentioned problems of the prior art, to control the display content of a high-brightness LED (LED) lighting device designed by the customer to design the desired letters or drawings, and to change the lighting by neon signs It is an object of the present invention to provide an LED (LED) lighting device using a network to replace the.

LED lighting device using the network of the present invention for achieving the above object, the remote control unit for remotely controlling the LED (LED) lighting unit; A network local control unit (NLCU) for transmitting a signal of the remote control unit through a network; A local control unit (LCU) which can be connected by a cascade communication scheme and configured to block a signal for controlling an LED of the LED lighting unit; A switching block having a switching unit for outputting a switching signal to light an LED according to an output signal of the local control unit; It is characterized in that it comprises an LED (LED) lighting unit for displaying a screen by controlling the LED (LED) in accordance with the output signal of the switching block.

The network local control unit includes an NLCU control unit for controlling a network formed by the local control unit; A DMX transceiver having a DMX input port and a DMX output port for DMX communication of the NLCU controller; An RS232 transceiver for communicating with the remote control unit; A storage unit for storing an LED (ON) output setting value of the LED lighting unit and storing network information of the LCU; And a channel and variable selector for channel and variable selection of the local control unit.

The network local control unit may be configured to be connected in a cascade structure for a network configuration.

The local control unit may include: an LCU control unit controlling an output of a display video signal of the LED lighting unit; A DMX transceiver for transmitting and receiving a DMX signal with a unit in said network local control; Header pins for input / output and power input / output of the DMX signal; An LCU input / output unit for converting and outputting the DMX signal in series and converting an external serial signal in parallel; And an LCU selector for setting an address of the local control unit.

The switching unit includes: a switching module in which switch elements for turning on and off the LEDs of the LED blocks are arranged; A power supply and a DMX input module for inputting the power and inputting a DMX signal; A header pin for transmitting and receiving a power, an LED control signal, and a DMX signal; And a DMX output module for outputting the DMX signal and power.

The header pin is composed of 4 pins for the transmission and reception of the DMX signal, 2 pins for external power input, and a 10-pin header pin having 3 pins for LED (LED) control signal output.

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

FIG. 1A is a circuit block diagram of an LED lighting apparatus using a network according to an embodiment of the present invention, and FIG. 1B is a block diagram of an LED lighting apparatus using the network of FIG. 1A.

As shown in Figure 1a and 1b, the LED lighting device 100 (hereinafter 'lighting device') using a network according to an embodiment of the present invention is a remote control unit for remotely controlling the LED (LED) lighting device ( 10); A network local control unit (hereinafter referred to as 'NLCU') 20 for transmitting a signal from the remote control unit 10 through a network; A local control unit (hereinafter referred to as “LCU”) 30 which may be connected by a cascade communication method and outputs a signal for controlling the LED of the LED lighting unit 40; The switching block 50 and the LED blocks 60a to 60n having the switching units 50a to 50n for outputting a switching signal to light up the LEDs according to the output signal of the LCU 30 are connected. It is configured to include an LED (LED) lighting unit 40 provided.

The NLCU 20 is connected to the remote control unit 10 as a computer having an NLCU-HMI program through an RS-232C interface and has one DMX output port.

The LCU 30 may control the switching unit 50 and includes one DMX input port for receiving a DMX512 signal and one DMX output port for sending a DMX signal. As a result, the LCU 30 may connect a DMX input port and a DMX output port in a cascade structure for channel expansion 25 to 512, and include a synchronous electronic circuit and an algorithm according to channel expansion.

In addition, the LCU 30 has a structure that can be extended in a multi-drop method for RS-485 communication.

The control of the NLCU 20 and the LCU 30 may be implemented by an NLCU, an LCU firmware, and an HMI.

Next, the LED lighting unit 40 is preferably implemented in a full color method.

The switching unit 50 receives a control signal from the LCU 30 to drive up to eight channels of LEDs. NLCU-HMI is a program that can control 1 ~ 512 channels by connecting RS-232 with NLCU.

2 is a block diagram of the NLCU 20.

As shown in FIG. 2, the NLCU 20 includes an NLCU control unit 21; A DMX transceiver (DMX512 Transceiver) 22 having a DMX input port 23 and a DMX output port 24; An RS232 transceiver 25 having an RS232 port 26; A storage unit 27 composed of an SRAM and an EEPROM; And a channel and variable selector 28 for channel and variable selection.

Input and output ports 23 and 24 of the NLCU 20 input and output a DMX512 signal. One DMX output port (DMX512 output port) 24 can control up to 512 channels, and is connected to the RS232 port 26 to control variables by GUI (Graphic User Interface) of the remote controller 10. Setup and control are performed.

In the above configuration, the NLCU control unit 21 has an 8-bit AVR RISC structure of ATMEL Corporation, has a throughput performance of 16 MIPS at a clock of 16 MHz, a 16K byte flash memory as a program memory, and a 512 byte EEPROM. It can be configured with an ATmega162 CPU with 1K byte SRAM.

The ATmega162 CPU is composed of a program memory and an EEPROM, and has a structure that can be programmed using a JTAG (IEEE 1149.1) interface method. The dual-programmable full-duplex UART is built in, so that the 512 LCUs 30 can be network-controlled by implementing the DMX512 protocol. In addition, an external 128K byte SRAM was added to manage the data of each extended LCU. The communication unit is configured to operate RS232 serial communication for interface with HMI and two ports for DMX512.

The above-described NLCU 20 can form a network by connecting in a cascade structure, and one NLCU 20 can control 512 x 393,216 LEDs by controlling 512 LCUs 30. This allows 393,216 pixels to be controlled. Since the NLCU 20 can be extended to a cascade structure, a desired number of pixels can be configured.

In addition, a storage unit 27 including an SRAM and an EEPROM is provided outside.

An embodiment of the memory map of the internal EEPROM configured in the NLCU control unit 21 and the external EEPROM configured in the storage unit 27 in the above-described configuration is as follows.

<Internal EEPROM Memory Map>

0x000: Initial setting (0x55)

0x001: Set pattern number

0x002: Whether pattern # 0 is set

0x003: Whether pattern # 1 is set

0x004: Whether pattern # 2 is set

0x005: Whether pattern # 3 is set

0x006: Whether pattern # 4 is set

0x007: Whether pattern # 5 is set

0x008: Whether pattern # 6 is set

0x009: Whether pattern # 7 is set

0x00a: Whether pattern # 8 is set

0x00b: Whether pattern # 9 is set

0x00c to 0x00d: Number of control channels of pattern # 0

0x00e to 0x00f: Data size of pattern # 0

0x010 to 0x011: Number of control channels of pattern # 1

0x012 to 0x013: Data size of pattern # 1

0x014 ~ 0x015: Number of control channels in pattern # 2

0x016 to 0x017: Data size of pattern # 2

0x018 ~ 0x019: Number of control channels of pattern # 3

0x01a to 0x00f: Data size of pattern # 3

0x01c to 0x01d: Number of control channels of pattern # 4

0x01e to 0x01f: Data size of pattern # 4

0x020 ~ 0x021: Number of control channels of pattern # 5

0x022 to 0x023: Data size of pattern # 5

0x024 to 0x025: Number of control channels in pattern # 6

0x026 to 0x027: Data size of pattern # 6

0x028 ~ 0x029: Number of control channels of pattern # 7

0x02a to 0x02b: Data size of pattern # 7

0x02c to 0x02d: Number of control channels of pattern # 8

0x02e to 0x02f: Data size of pattern # 8

0x030 ~ 0x031: Number of control channels of Pattern # 9

0x032 to 0x033: Data size of pattern # 9

<External EEPROM (32K x 8) Memory Map>

RGB Table

0x0000 ~ 0x0002: 8 bit value of Red, Blue, Green of RGB Channel Value '0'

0x0003 ~ 0x0005: 8 bit value of Red, Blue, Green of RGB Channel Value '1'

0x0006 ~ 0x0008: 8 bit value of Red, Blue, Green of RGB Channel Value '2'

To

0x02fa ~ 0x02fc: 8 bit value of Red, Blue, Green of RGB Channel Value '254'

0x02fd ~ 0x02ff: 8 bit values of Red, Blue, Green of RGB Channel Value '255'

<Start address of set pattern>

0x0000: Number of patterns to control

0x0001 ~ 0x0002: Grouping of pattern # 1, pattern function type, number of groups to control

0x0000 ~ 0x0000: Number of channels that make up Group # 1

0x0000 ~ 0x0000: Channel number composing Group # 1

0x0000 ~ 0x0000: Channel number composing Group # 1

0x0000 ~ 0x0000: Number of channels that make up Group #N

0x0000 ~ 0x0000: Channel number composing Group #N

0x0000 ~ 0x0000: Channel number composing Group #N

0x0000 ~ 0x0000: Function Type Components of Pattern # 1

0x0000 ~ 0x0000: Repeat number of pattern # 1 (when the number of patterns to control is 2 or more)

0x0000 ~ 0x0000: Grouping of pattern # 2 (grouping correction), pattern function type, number of groups to control

0x0000 ~ 0x0000: Number of channels constituting group # 2 (omitted when Grp = '0')

0x0000 ~ 0x0000: Channel number constituting group # 2 (omitted when Grp = '0')

0x0000 ~ 0x0000: Channel number constituting group # 2 (omitted when Grp = '0')

0x0000 ~ 0x0000: Number of channels constituting group #N (omitted when Grp = '0')

0x0000 ~ 0x0000: Channel number constituting group #N (omitted when Grp = '0')

0x0000 ~ 0x0000: Channel number constituting group #N (omitted when Grp = '0')

0x0000 ~ 0x0000: Function Type Components of Pattern # 2

0x0000 ~ 0x0000: Number of repetitions of pattern # 2

<Pattern function type # 1 (PatternFunctionType == 1)>

Group ON / OFF Flashing Function

-Components: OffsetSection (2B), TotalValidTerm (2B), OnStateTerm (2B), ResolutionTerm (2B), OnTermIntensity (1B), OffTermInternsity (1B), RepeatNum (2B)

<Pattern function type # 2 (PatternFunctionType == 2)>

Group Dimming Function

<Port Map>

-PD0: UART Receive Data-PB0: AT24C256 Serial Clock Input

-PD1: UART Transceiver Data-PB3: DMX512 Data Out

-PD6: SRAM Write-PB4: AT24C256 Serial Data Line

-PD7: SRAM Read

3 is a block diagram of the LCU 30 of the present invention.

As shown in FIG. 3, the LCU 30 of the present invention includes an LCU control unit 31; A DMX transceiver 32; Header pins 33 for input / output and power input / output of a DMX signal; LCU selection unit 36 is configured.

The LCU control unit 31 has an 8-bit AVR RISC structure of ATMEL, has a throughput performance of 20 MIPS at a clock of 20 MHz, a 2K byte of flash memory as a program memory, and 128 bytes of EEPROM and SRAM. . The program memory and the EEPROM may be configured as an ATtiny2313 CPU having a structure that can be programmed by an ISP (In-system program) method.

The ATtiny2313 CPU having the above-described configuration has a built-in full-duplex UART to implement the DMX512 protocol, and the specification of the hardware voltage level required for communication can be implemented using 75176.

The header pin 33 is composed of a 10-pin header pin for performing the function of transmitting and receiving a DMX512 signal, inputting an external power supply, and outputting an LED (LED) control signal. Here, DMX512 transmit / receive 4 pins (4, 6, 8, 10), external power input 2 pins (1, 2), 3 pins (3, 5) for LED control signal output , 7).

When the LCU input / output unit composed of the DMX input unit 34 and the DMX output unit 35 sends data to be expressed in the CPU in serial, converts the data in parallel and transfers the data to the switching module. In this case, the DMX512 I input and output ports may be attached to the LCU selector 36.

The LCU selector 36 is configured as a 14-pin dip switch for setting. The DIP switch sets the operation mode, address and channel of each LCU, and since several LCUs exist, it transmits the information necessary to distinguish and operate them to the CPU of the LCU. The LCU selector 36 allocates a total of 16,384 addresses by using a 14-bit address and connects a total of 16,384 LCUs. Since one LCU can drive 24 LEDs, the maximum LED The number of drives is 393,216. This corresponds to 768 pixels in Korean.

The LCU 30 configured as described above has a function of controlling the LED (LED) by the basic output when there is no DMX512 input signal, a function of controlling the LED (LED) by the information received from the DMX512, and channel expansion (25 ~). 512) cascades the DMX512 input port and the DMX512 output port to operate in synchronization.

Each of the LCU 30 having the above-described configuration is composed of a module to which the DMX-512 interface is applied for device compatibility, so that an LED lighting device displaying full color can be easily manufactured and installed. From the display to the high-quality image display can be displayed without additional cost.

FIG. 4 is a block diagram of switching units 50a to 50n of the switching block 50 of the LED lighting unit 40.

As shown in FIG. 4, the switching units 50a to 50n include a switching module 51 in which switch elements for turning on and off the LEDs of the LED blocks 60a to 60b are arranged; A power supply and DMX input module 52 for inputting power and inputting a DMX signal; A DC 5V input, an LED (LED) control signal, and a header pin 53 for transmitting and receiving a DMX512; The DMX512 includes a DMX output module 54 for outputting a signal and a power supply and a regulator 55 for rectifying the power.

The DMX input module 52 and the DMX output module 53 are composed of one 10-pin connector for receiving and outputting DMX512 signals and power, respectively. And

The header pin 53 is composed of 10 pins to perform DC 5V input, LED (LED) control signal, DMX512 transmission and reception functions. An example of the 10-pin application is to use 4 pins (4, 6, 8, 10) for DMX512 transmission and reception, 2 pins (1, 2) for external power input, and LED control signal output. Use three pins (# 3, # 5 and # 7) for this purpose.

The switching units 50a to 50n may be configured as FET modules in which FET devices are arranged.

The switching units 50a to 50b of FIG. 4 having the above-described configuration switch up to 24 high brightness LEDs.

5 is a flowchart illustrating a control method of setting an output image of an LED lighting apparatus using a network through the remote controller 10 of the present invention.

The above-described process of FIG. 5 is implemented in a GUI form and is mounted on the remote controller 10, and the remote controller 10 and the NLCU can be connected to RS232 to set 256 channel control. Program functions include channel group setting, sequence setting and channel color setting.

Referring to Figure 5 describes a method for setting the output image of the LED lighting apparatus using a network through the remote control unit 10 of the present invention.

First, when the program is executed for the control of the lighting device 100, the serial communication port is initialized and then a communication connection is performed between the remote control unit 10 and the NLCU 20. The communication connection disclosure is displayed as ON, and when the communication connection failure is displayed as OFF and repeats the communication connection process (S1).

After the communication connection is successful in the S1 process, open a picture file to be edited to produce an LED (S2).

When the picture file is opened in the process of S2, the image of the picture file is displayed on the screen (S3), and then the resolution is set by inputting the horizontal (x) and vertical (y) values (S4), and then the In order to display an image, an image position to be output is displayed in a selection cell (S5).

Next, a correction is performed by the selected image preview procedure (S6), and text is input if text insertion is required (S7, S8).

After the input of text is completed, the edited image is displayed on the screen (S9). After inputting the scan direction and speed, and performing a trial display, the scan speed is re-entered to correct it (S9 ~ S11). ).

After all the editing is finished by the S11 process, the remote control unit 10 transmits the edited image to the LED lighting unit 40 by transmitting a DMX signal through the NLCU 20 and the LCU 30. After displaying, the process ends (S12).

An example of GUI setting for directing the LED output as described above is as follows.

A. Configuration Elements

-Working Group

-Group

a. Designation of Index (IndexPatternDB) of Pattern DB

b. Specify the number of production patterns (number of changes in working group or pattern function)

c. Specify Group

d. Specify Working Group

e. Specify Pattern Function (Pattern Function)

B. Pattern DB Index designation

: Patterns from 0 to 1 can be set, saved and modified.

C. Specify the number of production patterns

: Number of patterns specified in Pattern DB Index

D. Specify Group

: Assign channel to work with one channel

E. Working Group Designation

: Assign a group with the same pattern function

F. Assign Pattern Function

: Pattern function rendered

The present invention described above consists of modules with DMX-512 interface for device compatibility for system flexibility, so that the LED lighting device displaying full color can be easily manufactured and installed. It provides an effect that can be displayed from the display of the high-quality image display without additional cost.

Claims (6)

A remote control unit for remotely controlling an LED lighting unit; A network local control unit (NLCU) for transmitting a signal of the remote control unit through a network; A local control unit (LCU) configured to be connected by a cascade communication scheme, the block configured to output a signal for controlling the LED of the LED lighting unit; A switching block having a switching unit for outputting a switching signal to light an LED according to an output signal of the local control unit; LED lighting device using a network, characterized in that it comprises an LED (LED) lighting unit for displaying a screen by controlling the LED (LED) according to the output signal of the switching block. The method according to claim 1, wherein the network local control unit, An NLCU control unit for controlling a network formed by the local control unit; A DMX transceiver having a DMX input port and a DMX output port for DMX communication of the NLCU controller; An RS232 transceiver for communicating with the remote control unit; A storage unit for storing an LED (ON) output setting value of the LED lighting unit and storing network information of the LCU; LED lighting device using a network comprising a channel and variable selection unit for channel and variable selection of the local control unit. The LED lighting apparatus using a network of claim 2, wherein the network local control unit is configured to be connected in a cascade structure for a network configuration. The method of claim 1, wherein the local control unit, An LCU control unit controlling an output of a display video signal of the LED lighting unit; A DMX transceiver for transmitting and receiving a DMX signal with a unit in said network local control; Header pins for input / output and power input / output of the DMX signal; An LCU input / output unit for converting and outputting the DMX signal in series and converting an external serial signal in parallel; LED lighting device using a network comprising a LCU selector for setting the address of the local control unit. The method according to claim 1, The switching block, A switching module in which switch elements for turning on and off the LEDs of the LED lighting units are arranged; A power supply and a DMX input module for inputting the power and inputting a DMX signal; A header pin for transmitting and receiving the power, LED control signal, and DMX signal; LED lighting device using a network, characterized in that consisting of an array of the switching unit having a; DMX output module for outputting the DMX signal and power. The method according to claim 4 or 5, wherein the header pin, LED lighting device using a network, characterized in that composed of 4 pins for transmitting and receiving the DMX signal, 2 pins for external power input, and 10 pin header pins having 3 pins for LED (LED) control signal output .

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