CN111182670A - Lamp power-on automatic addressing method based on DMX512 protocol - Google Patents
Lamp power-on automatic addressing method based on DMX512 protocol Download PDFInfo
- Publication number
- CN111182670A CN111182670A CN201911117206.1A CN201911117206A CN111182670A CN 111182670 A CN111182670 A CN 111182670A CN 201911117206 A CN201911117206 A CN 201911117206A CN 111182670 A CN111182670 A CN 111182670A
- Authority
- CN
- China
- Prior art keywords
- data
- address
- lamp
- automatic addressing
- led lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention relates to a method for automatically addressing lamps based on DMX512 protocol, which comprises a plurality of LED lamps, wherein each LED lamp comprises a power supply module, a control module and a display module; the power supply module supplies power to the control module and the display module respectively, and the control module comprises a control chip U1, a capacitor C1 and a resistor R; the display data of the LED lamp are sent to the data frame decoding unit, the data decoding unit sends the decoded data to the display control unit of the control module, and the decoded data are converted into PWM signals to be output to the OUT port; the invention achieves higher coupling efficiency, saves a code writer on the basis of not changing the connection mode of the existing DMX512 lamp by the power-on automatic addressing technology of the LED lamp, greatly improves the compatibility and the simplicity of the LED lamp, saves the time of engineering test and improves the production efficiency of a production line.
Description
Technical Field
The invention relates to the technical field of LED lighting, in particular to a method for automatically addressing lamps when being powered on based on a DMX512 protocol.
Background
The existing DMX512 protocol is a data dimming protocol proposed by the American stage lighting Association, can digitally control dimmers and other control devices in places such as stages, theaters, studios and the like, is suitable for one-point-to-multipoint master-slave controllers, is simple in connection and high in reliability, and is widely applied to the field of stage lighting.
The DMX512 protocol is transmitted through a data bus, so that each LED lamp hung on the data bus needs to have a unique address so as to intercept corresponding data and realize independent control of each LED lamp. In the early stage, dial keys are adopted in the field of stage lamps or the addresses are set in a manner that a manufacturer leaves a factory and is configured well, and the manner brings troubles to field installation and debugging.
Later, the DMX512 protocol is applied to the field of landscape brightening, lamps need to be installed on buildings or bridges, and an early address configuration mode is not suitable any more, so that a method for uniformly and automatically addressing by using a code writer appears in the market, and the trouble of manually configuring or installing the lamps in sequence is solved. However, the following two problems still exist in the use of the device:
1. a manufacturer in the field of stage lamps adopts a special DMX512 console to make effects and does not support a code writing protocol, so that a code writer needs to be purchased additionally, and the overall cost is increased;
2. the product needs to be tested before leaving factory in the field of landscape brightening, the labor cost and the whole testing time are increased through the operation of the code writer, and the production efficiency is influenced.
Therefore, there is a need to develop a method for automatically addressing lamps based on DMX512 protocol.
Disclosure of Invention
The invention aims to solve the technical problem of providing a lamp power-on automatic addressing method based on a DMX512 protocol, which can realize automatic addressing by power-on without a code writer, saves the cost and improves the production efficiency of a production line.
In order to solve the technical problem, the invention provides a lamp power-on automatic addressing method based on a DMX512 protocol, which comprises a plurality of LED lamps, wherein each LED lamp comprises a power supply module, a control module and a display module; the power supply module supplies power to the control module and the display module respectively, data input ports of the single control modules of the LED lamps are connected onto a data bus, the control modules among the LED lamps are connected in series one by one through address mark signal lines, and each control module comprises a control chip U1, a capacitor C1 and a resistor R; the display data of the LED lamp are sent to the data frame decoding unit, the data decoding unit sends the decoded data to the display control unit of the control module, and the decoded data are converted into PWM signals to be output to the OUT port.
The method for automatically addressing the lamps on the basis of the DMX512 protocol comprises the following steps:
a. firstly, connecting a data input port of a control module of each LED lamp in parallel on a data bus;
b. when the LED lamp is powered on and enters an automatic addressing state, firstly, an output port of an address mark is configured to be a specific level;
c. the control module address mark input port of the first LED lamp is suspended, and the control module address mark output port of the first LED lamp is connected to the address mark input port of the control module of the second LED lamp;
d. in the same way, the address mark output port of each LED lamp control module is connected to the address mark input port of the control module of the next lamp;
e. then, the lamps are electrified, the lamp which is identified as the first lamp begins to transmit addressing data to the next lamp, and the next lamp continues to transmit the addressing data to the next lamp after addressing is finished until all the lamps are addressed;
f. when the lamp identified as the first lamp is connected to the back of other lamps, the lamp receives the addressing data of the upper stage, switches to the non-first lamp and transmits the addressing downwards again;
g. when a lamp needs to be added to an LED lighting system, only the lamp needs to be connected backwards and in parallel, and automatic addressing can be still completed without power-on again because an addressing signal is transmitted all the time;
h. the automatic addressing data needs to be checked and compared, and only when the automatic addressing data passes the check and the addresses are inconsistent, the automatic addressing data is updated;
i. repeating the steps a to h to automatically address.
Further, the LED lamp does not need a writer.
The further scheme is that the first LED lamp can be distinguished by the specific level through the level difference of the address mark input port.
The further scheme is that the automatic addressing power-on technology multiplexes transmission lines of an address mark interface and is used for transmitting addressing data.
Further, the resistors include resistors R1, R2, R3, R4, and R5, one end of the resistor R1 is used as a power input end of the control module, the other end of the resistor R1 and one end of the capacitor C1 are connected to a power port VDD of a control chip U1, and the other end of the capacitor C1 and GND of the control chip U1 are connected to ground.
Further, the control chip U1 includes an address flag input control unit, an address data storage unit, an address flag output control unit, a data frame decoding unit, and a display control unit.
The further scheme is that the address data control unit is electrified to confirm the starting of automatic addressing, and inputs the initial state of the AFI and AFO ports configured by the control unit and the address mark output control unit through the address mark, and then the address mark input control unit continuously checks the state of the AFI of the address mark input port.
The display module displays the preset color of the automatic address writing of the head lamp.
Further, the display control unit intercepts the relative display data according to the automatically numbered address of the control chip U1 through a data frame, and realizes various effects and changes through an output value OUT.
The further scheme is that the address data of the automatic addressing is selected to be only cached or written into the EEPROM.
Compared with the prior art, the invention has the beneficial effects that: the method for automatically addressing the lamps on the basis of the DMX512 protocol achieves higher coupling efficiency; by the LED lamp power-on automatic addressing technology, the LED lamp power-on automatic addressing of the code writer is omitted on the basis of not changing the existing DMX512 lamp connection mode, the compatibility and simplicity of the LED lamp are greatly improved, the engineering test time is saved, the production efficiency of a production line is improved, and the LED lamp power-on automatic addressing technology has the following main beneficial effects;
the address writing of the LED lamp system can be automatically addressed without a code writer when the LED lamp system is powered on, so that the cost of purchasing the code writer is saved, and the production efficiency of a production line is improved;
2. signals can be continuously transmitted and checked in the automatic addressing state, lamps are added or reduced for the whole LED lamp system, extra operation is not needed, the lamps can automatically and automatically address again, and the operation is simple and convenient.
Drawings
FIG. 1 is a schematic diagram of a DMX512 landscape lamp system according to an embodiment of the invention;
fig. 2 is a schematic diagram of a control module of an LED lamp according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a control chip U1 according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to fig. 3, in an embodiment of the present invention, a method for powering on and automatically addressing a lamp based on a DMX512 protocol includes a plurality of LED lamps, where each LED lamp includes a power module, a control module, and a display module; the power supply module supplies power to the control module and the display module respectively, the data input ports of the single control modules of the LED lamps are connected onto the data bus, the control modules among the LED lamps are connected in series one by one through address mark signal lines, and each control module comprises a control chip U1, a capacitor C1 and a resistor R; the display data of the LED lamp are sent to the data frame decoding unit, the data decoding unit sends the decoded data to the display control unit of the control module, and the decoded data are converted into PWM signals to be output to the OUT port.
The method for automatically addressing the lamps during power-on based on the DMX512 protocol comprises the following steps:
a. firstly, connecting a data input port of a control module of each LED lamp in parallel on a data bus;
b. when the LED lamp is powered on and enters an automatic addressing state, firstly, an output port of an address mark is configured to be a specific level;
c. the control module address sign input port of the first LED lamp is suspended, and the control module address sign output port of the first LED lamp is connected to the address sign input port of the control module of the second LED lamp;
d. in this way, the address mark output port of each LED lamp control module is connected to the address mark input port of the control module of the next lamp;
e. then, the lamps are electrified, the lamp which is identified as the first lamp begins to transmit addressing data to the next lamp, and the next lamp continues to transmit the addressing data to the next lamp after addressing is finished until all the lamps are addressed;
f. when the lamp identified as the first lamp is connected to the back of other lamps, the lamp receives the addressing data of the upper stage, switches to the non-first lamp and transmits the addressing downwards again;
g. when a lamp needs to be added to an LED lighting system, only the lamp needs to be connected backwards and in parallel, and automatic addressing can be still completed without power-on again because an addressing signal is transmitted all the time;
h. the automatic addressing data needs to be checked and compared, and only when the automatic addressing data passes the check and the addresses are inconsistent, the automatic addressing data is updated;
i. and repeating the steps a to h to carry out automatic addressing.
Further, the LED luminaire does not require a writer.
Further, the specific level can distinguish the first LED lamp through the level difference of the address mark input port.
Further, the auto-addressed power-on technique multiplexes transmission lines of the address mark interface for transferring addressed data.
Furthermore, the resistors include resistors R1, R2, R3, R4, and R5, one end of the resistor R1 is used as a power input end of the control module, the other end of the resistor R1 and one end of the capacitor C1 are connected to the power port VDD of the control chip U1, and the other end of the capacitor C1 and the GND of the control chip U1 are connected to ground.
Further, the control chip U1 includes an address flag input control unit, an address data storage unit, an address flag output control unit, a data frame decoding unit, and a display control unit.
Further, the address data control unit is powered on to confirm the starting of automatic addressing, the initial states of the AFI and the AFO port are configured through the address mark input control unit and the address mark output control unit, and then the address mark input control unit continuously checks the state of the address mark input port AFI.
Further, the display module displays a preset color of the automatic address writing of the head lamp.
Further, the display control unit intercepts the corresponding display data through the data frame according to the automatically numbered address of the control chip U1, and implements various effects and changes by outputting to OUT.
Further, the automatically addressed address data selects to only buffer or write to the EEPROM.
The invention provides a method for automatically addressing lamps based on DMX512 power-on. As shown in fig. 1, the entire DMX512 luminaire system is composed of only a plurality of LED luminaires, and no coders are required.
The LED lamp is composed of a power supply module, a control module and a display module. The power module supplies power to the control module and the display module respectively. The data input port of the control module of each LED lamp is connected to the data bus. The control module address sign input port of the first LED lamp is suspended, and the control module address sign output port of the first LED lamp is connected to the address sign input port of the control module of the second LED lamp. And by analogy, the address mark output port of each LED lamp control module is connected to the address mark input port of the control module of the next lamp. The power-on automatic addressing technology multiplexes transmission lines of the address mark interface to transmit addressed data. And powering on the lamps, starting to transmit addressing data to the next lamp by identifying the lamp which is the first lamp, and continuing to transmit the addressing data to the next lamp after the next lamp finishes addressing until all lamps finish addressing. When a fixture identified as a first fixture is connected behind other fixtures, that fixture receives addressing data from a previous stage and switches to a non-first fixture and passes the addressing down again.
According to the invention, through the LED lamp power-on automatic addressing technology, on the basis of not changing the existing DMX512 lamp connection mode, the automatic addressing of the LED lamp on the code writer is omitted, the compatibility and the simplicity of the LED lamp are greatly improved, the engineering test time is saved, and the production efficiency of a production line is improved.
FIG. 1 is a block diagram of a DMX512 landscape lamp system, showing only those parts relevant to the present invention for ease of illustration, as detailed below:
the LED lighting system provided by the embodiment of the invention comprises LED lamps, all the LED lamps are connected in parallel on a data bus, and the control modules between the LED lamps are connected in series one by one through address mark signal lines.
The LED lamps enter an automatic addressing state after being electrified, the address mark output ports are configured to be specific levels firstly, and preset levels of the address mark input ports are distinguished. And then the first lamp control module obtains the address of the second LED lamp according to the number of the channels or preset steps of the first lamp control module and transmits the address through an address mark signal line, meanwhile, the first lamp control module controls the display module to display preset colors to indicate that the display module finishes automatic addressing, the second lamp receives the address data transmitted by the first lamp and then carries out verification and comparison, and the second lamp updates the address of the second lamp only through the data which passes the verification and is inconsistent with the address of the second lamp. And the control module of the second LED lamp confirms the address of the third lamp according to the self channel or the preset step and transmits the address through the address mark signal line. Similarly, the second lamp control module can control the display module to display the preset color to indicate that the second lamp control module has finished writing the address, but the preset colors displayed by the first lamp and the non-first lamp are different, so that the first lamp and the non-first lamp are distinguished to facilitate inspection. And repeating the steps until the whole LED lighting system completely writes the address.
The whole LED lighting system can not automatically exit the automatic addressing state after completing automatic addressing and normally displaying, and at the moment, automatic addressing data can still be transmitted on address mark signal lines among the LED lamps, so that convenience is brought to engineering test and use. When a lamp needs to be added to an LED lighting system, the LED lighting system only needs to be connected backwards and in parallel, and automatic addressing can be still completed without power-on again because the addressing signal is transmitted all the time. And only when the data bus is connected to the stage console or the landscape controller and normal display data frames or other instruction frames are sent, the LED lamp can exit the automatic addressing state, and start to decode and display data.
As shown in fig. 2, the LED lamp control module includes:
the control module comprises a control chip U1, a capacitor C1, resistors R1, R2, R3, R4 and R5, wherein one end of the resistor R1 is used as a power input end of the control module, the other end of the resistor R1 and one end of the capacitor C1 are connected to a power port VDD of the control chip U1 in a sharing mode, and the other end of the capacitor C1 and GND of the control chip U1 are connected to the ground in a sharing mode. One end of the resistor R2 is connected with the data input port DIN of the control chip, and the other end is connected with the data bus of the controller as the data input port of the control module. The controller chip may also be configured to have an AB differential data port connected to the controller data bus through resistors R2, R3, as shown in the dashed box. One end of the resistor R4 is connected with an address sign input end (AFI) of the control chip U1, the other end of the resistor R4 is used as an address sign input end of the control module, one end of the resistor R5 is connected with an address sign output end (AFO) of the control chip U1, the other end of the resistor R5 is used as an address sign output end of the control module, display driving ports OUT 1-3 of the control chip U1 are used for controlling the display module, the number of the driving ports in actual situations is not limited, and the driving ports are determined according to actual requirements.
As shown in fig. 3, the control chip U1 includes:
the device comprises an address mark input control unit, an address data storage unit, an address mark output control unit, a data frame decoding unit and a display control unit.
The address data control unit is electrified to confirm the starting of automatic addressing, the initial states of the AFI and the AFO port are configured through the address mark input control unit and the address mark output control unit, and then the address mark input control unit continuously checks the state of the address mark input port AFI. If the head lamp is detected, the feedback address data control unit starts to read the data stored in the address data storage unit, simultaneously obtains the address data of the next lamp according to the read data and sends the address data to the address mark output port AFO through the address mark output unit, meanwhile, the head lamp preset display data are sent to the data frame decoding unit, the data decoding unit sends the decoded data to the display control unit and converts the decoded data into PWM signals to be output to the OUT port, and the display module is controlled to display the preset color of the automatic address writing of the head lamp. If the detection result is that the lamp is not the first lamp, the automatic addressing data transmitted from the upper stage is continuously detected, the address data control unit checks the address data of the address mark input control unit and compares the address data with the self address, only the address data which passes the check and is inconsistent with the self address is updated, and whether the new address needs to be updated to the address data storage unit is determined according to the preset state. And meanwhile, the address data of the next lamp is confirmed according to the new effective address and the read channel number or step and is transmitted to the address mark output port through the address mark output unit. Meanwhile, the non-first-light preset display data are sent to the data frame decoding unit, the data decoding unit sends the decoded data to the display control unit and converts the decoded data into PWM signals to be output to the OUT port, and the display module is controlled to display the preset color of the automatic address writing of the non-first light.
When a display data frame or other instruction frame is received by the data input DIN port or the A, B differential port, the address data control unit exits the automatic addressing state and stops the transmission of the automatic addressing data. The data frame intercepts relative display data according to the address of the chip automatic number, and the relative display data are output to the OUT control display module through the display control unit, so that various effects and changes are realized.
The invention has the following specific and remarkable beneficial effects:
the LED lamp is electrified and automatically addressed, and an external code writer is not needed;
2. the address of the first lamp is not changed, and the address of the first lamp cannot be changed in the automatic addressing process unless the first lamp is changed into a non-first lamp;
3. automatic addressing does not require the LED lamps to be powered on simultaneously;
4. the automatic addressing state is not automatically exited, only upon receipt of a display number frame or other data frame command.
5. The automatic addressing data needs to be checked and compared, and only when the automatic addressing data passes the check and the addresses are inconsistent, the automatic addressing data is updated;
6. the automatically addressed address data may be selected to be only buffered or written to the EEPROM.
The method for automatically addressing the lamps on the basis of the DMX512 protocol achieves higher coupling efficiency; by the LED lamp power-on automatic addressing technology, on the basis of not changing the existing DMX512 lamp connection mode, the power-on LED lamp automatic addressing on the code writer is omitted, the compatibility and the simplicity of the LED lamp are greatly improved, the engineering test time is saved, and the production efficiency of a production line is improved.
1. The above description is only a preferred embodiment of the present patent, and not intended to limit the scope of the present patent, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the specification and the drawings, and which are directly or indirectly applied to other related technical fields, belong to the scope of the present patent protection.
Claims (10)
1. A lamp power-on automatic addressing system based on a DMX512 protocol is characterized in that: the LED lamp comprises a plurality of LED lamps, wherein each LED lamp comprises a power supply module, a control module and a display module; the power supply module supplies power to the control module and the display module respectively, the data input ports of the single control modules of the LED lamps are connected onto a data bus, the control modules among the LED lamps are connected in series one by one through address mark signal lines, and each control module comprises a control chip U1, a capacitor C1 and a resistor R; the display data of the LED lamp are sent to a data frame decoding unit, and the data decoding unit sends the decoded data to a display control unit of the control module, converts the decoded data into a PWM signal and outputs the PWM signal to an OUT port; the control module address mark input port of the first LED lamp is suspended, the address mark output port of each LED lamp control module is connected to the address mark input port of the control module of the next lamp for automatic addressing, and automatic addressing data needs to be checked and compared.
2. The system for powered automatic addressing of light fixtures according to claim 1 based on DMX512 protocol, wherein: the LED lamp does not need a writer.
3. The system for powered automatic addressing of light fixtures according to claim 1 and based on DMX512 protocol, wherein: the specific level can distinguish the first LED lamp through the level difference of the address mark input ports.
4. The system for powered automatic addressing of light fixtures according to claim 1 based on DMX512 protocol, wherein: the automatic addressing power-on technology multiplexes transmission lines of the address mark interface and is used for transmitting addressing data.
5. The system for powered automatic addressing of light fixtures according to claim 1 based on DMX512 protocol, wherein: the resistors comprise resistors R1, R2, R3, R4 and R5, one end of the resistor R1 serves as a power input end of the control module, the other end of the resistor R1 and one end of the capacitor C1 are connected to a power port VDD of a control chip U1 in a sharing mode, and the other end of the capacitor C2 and the GND of the control chip U1 are connected to the ground in a sharing mode.
6. The system for powered automatic addressing of light fixtures according to claim 1 based on DMX512 protocol, wherein: the control chip U1 comprises an address sign input control unit, an address data storage unit, an address sign output control unit, a data frame decoding unit and a display control unit.
7. The system for powered automatic addressing of light fixtures according to claim 6 based on DMX512 protocol, wherein: and the address data control unit is electrified to confirm the starting of automatic addressing, and inputs the address mark into the control unit and the address mark output control unit to configure the initial states of the AFI and AFO ports, and then the address mark input control unit continuously checks the state of the AFI of the address mark input port.
8. The system for powered automatic addressing of light fixtures according to claim 1 based on DMX512 protocol, wherein: and the display module displays the preset color of the automatic address writing of the head lamp.
9. The system for powered automatic addressing of light fixtures according to claim 1 based on DMX512 protocol, wherein: the display control unit intercepts relative display data through a data frame according to the automatically numbered address of the control chip U1, and realizes various effects and changes through an output value OUT.
10. The system for powered automatic addressing of light fixtures according to claim 1 based on DMX512 protocol, wherein: the automatically addressed address data selects to buffer or write to the EEPROM only.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911117206.1A CN111182670A (en) | 2019-11-15 | 2019-11-15 | Lamp power-on automatic addressing method based on DMX512 protocol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911117206.1A CN111182670A (en) | 2019-11-15 | 2019-11-15 | Lamp power-on automatic addressing method based on DMX512 protocol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111182670A true CN111182670A (en) | 2020-05-19 |
Family
ID=70648725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911117206.1A Pending CN111182670A (en) | 2019-11-15 | 2019-11-15 | Lamp power-on automatic addressing method based on DMX512 protocol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111182670A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111901930A (en) * | 2020-08-31 | 2020-11-06 | 深圳市明微电子股份有限公司 | LED driving method, driving circuit thereof and LED lighting device |
| CN112036583A (en) * | 2020-07-27 | 2020-12-04 | 勤上光电股份有限公司 | Management system and management method for intelligent street lamp and sub-equipment thereof |
| CN112653743A (en) * | 2020-12-16 | 2021-04-13 | 广州鲁邦通物联网科技有限公司 | Multi-sensor addressing method in RS485 bus, data acquisition equipment and system |
| CN114222404A (en) * | 2021-12-21 | 2022-03-22 | 佛山市银河兰晶科技股份有限公司 | Lamp DMX address setting system and method |
| CN116743705A (en) * | 2023-06-15 | 2023-09-12 | 北京显芯科技有限公司 | Address configuration method, backlight control device and display device |
-
2019
- 2019-11-15 CN CN201911117206.1A patent/CN111182670A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112036583A (en) * | 2020-07-27 | 2020-12-04 | 勤上光电股份有限公司 | Management system and management method for intelligent street lamp and sub-equipment thereof |
| CN111901930A (en) * | 2020-08-31 | 2020-11-06 | 深圳市明微电子股份有限公司 | LED driving method, driving circuit thereof and LED lighting device |
| CN112653743A (en) * | 2020-12-16 | 2021-04-13 | 广州鲁邦通物联网科技有限公司 | Multi-sensor addressing method in RS485 bus, data acquisition equipment and system |
| CN114222404A (en) * | 2021-12-21 | 2022-03-22 | 佛山市银河兰晶科技股份有限公司 | Lamp DMX address setting system and method |
| CN114222404B (en) * | 2021-12-21 | 2022-07-26 | 佛山市银河兰晶科技股份有限公司 | Lamp DMX address setting system and method |
| CN116743705A (en) * | 2023-06-15 | 2023-09-12 | 北京显芯科技有限公司 | Address configuration method, backlight control device and display device |
| CN116743705B (en) * | 2023-06-15 | 2023-12-05 | 北京显芯科技有限公司 | Address configuration method, backlight control device and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111182670A (en) | Lamp power-on automatic addressing method based on DMX512 protocol | |
| EP2299434A1 (en) | Backlight drive device, display device using the same, and backlight drive method | |
| EP1694099B1 (en) | LED driver device | |
| CN105101530B (en) | Regulating system and regulating method based on synchronization with AC power supply frequency | |
| US9241389B2 (en) | Digital lighting sub-network interface | |
| JP2006108110A (en) | Control system and method for controlling illumination and video device | |
| CN101603648A (en) | Parallel type single-line addressing lighting device | |
| US6388400B1 (en) | Administration device for lighting fixtures | |
| CN211406347U (en) | Lamp power-on automatic addressing system based on DMX512 protocol | |
| EP1705633A2 (en) | Light emitting device single-cluster lamp control system | |
| CN110868784B (en) | Stage lighting data bidirectional synchronous communication method and system, storage medium and device | |
| KR20080058844A (en) | Led light using network | |
| JP6443111B2 (en) | Lighting control system, lighting control method, and lighting control program | |
| KR100506419B1 (en) | Channel based control device and the signal processing method thereof and the light control device using the same | |
| US8179138B2 (en) | CRT test system | |
| KR100870733B1 (en) | Remote controller and control method of lighting apparatus | |
| CN204031530U (en) | A kind of control system based on DMX512 agreement | |
| CN107635306A (en) | A kind of decoding apparatus based on LED control system and a kind of LED control system | |
| KR101447259B1 (en) | Binding System for Programming Switch and method thereof | |
| US9814120B2 (en) | Channel allocation method and apparatus for use in a wireless communication local area network | |
| CN114217213B (en) | Test method for active LED matrix panel | |
| CN115297089B (en) | Full-automatic address allocation system and method | |
| KR101241275B1 (en) | Image providing system of led view lighting for multimedia and image providing method using that | |
| CN220340891U (en) | LED display screen interface circuit | |
| TWI827337B (en) | Communication terminals and communication systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |