CN201146625Y - LED control equipment - Google Patents
LED control equipment Download PDFInfo
- Publication number
- CN201146625Y CN201146625Y CNU2008200550548U CN200820055054U CN201146625Y CN 201146625 Y CN201146625 Y CN 201146625Y CN U2008200550548 U CNU2008200550548 U CN U2008200550548U CN 200820055054 U CN200820055054 U CN 200820055054U CN 201146625 Y CN201146625 Y CN 201146625Y
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- led
- control
- control appliance
- connects
- led control
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Abstract
The utility model disclose an LED control device, including an offline synchronous interface for receiving / sending sync signals, which is connected with a main controller. The main controller receives optical control signals through a connected network interface and outputs the optical control signals after protocol conversion through a DMX 512 output port for controlling a connected LED. The LED control device can also be connected with an input control parameter liquid crystal control panel and be equipped with an SD / MMC card for storing the optical control signals. A DMX 512 protocol interface is adopted by the LED control device in the utility model for controlling LED. No loss of control of LED can be caused. And an LED lamp has no impact on connected LED lamps after going wrong.
Description
Technical field
The utility model relates to field of photoelectric technology, is meant a kind of LED control appliance especially.
Background technology
The LED lamp is widely used on the decoration of buildings such as stage, street, and the decoration control appliance of present LED lamp mainly adopts serial SPI control mode, realizes the control that LED light is shown.Under the control of this mode, need external video transition card, in control appliance, have the higher master controller of frequency the LED lamp is controlled.Under the control mode of this serial, because employing is the SPI mode of serial, the lamp of front is relevant on data with the lamp of back, if the lamp of front breaks down, the lamp of back causes out of control in control with out of control; In addition, under the SPI of serial mode, over-burden can to cause master controller, causes deadlock easily.
The utility model content
In view of this, the utility model is to provide a kind of LED control appliance, above-mentioned LED is caused problem out of control easily to solve.
For addressing the above problem, the utility model provides a kind of LED control appliance, comprise: the off line sync cap that is used to receive/send synchronizing signal is connected with master controller, after described master controller carries out protocol conversion by the network interface reception optical control signal that connects, by the DMX512 delivery outlet output that connects, the LED that connects is controlled.
Wherein, described DMX512 delivery outlet connects LED by RS485 bus or RS422 bus.
Wherein, also comprise input Control Parameter liquid crystal control panel.
Wherein, the LED control appliance also comprises the SD/MMC card of storing optical control signal.
LED control appliance in the utility model adopts the DMX512 protocol interface that LED is controlled, and can not cause the out of control of LED, and after a LED lamp breaks down, can the LED lamp that be connected not impacted; In addition, when realization is controlled LED, can adopt a plurality of LED control appliance on-line workings, over-burden can not cause each control appliance, the deadlock situation occurs.
Description of drawings
Fig. 1 is the structure chart of embodiment control appliance;
Fig. 2 is the fundamental diagram of LED light fixture among the embodiment.
Embodiment
For clearly demonstrating the LED control appliance in the utility model, provide preferred embodiment below and be described with reference to the accompanying drawings.
Referring to Fig. 1, Fig. 1 is the structure chart of control appliance among the embodiment, comprise, the off line sync cap that is used to receive/send synchronizing signal is connected with master controller, after described master controller carries out protocol conversion by connection network interface reception optical control signal, by digital multi-channel transmission (DMX512, Digital multiplex) delivery outlet output that connects the LED that connects is controlled.Protocol conversion is converted to the DMX512 protocol signal with optical control signal.
The DMX512 delivery outlet connects LED by RS485 bus or RS422 bus;
The LED control appliance also comprises input Control Parameter liquid crystal control panel, is used for the change color, period of change of LED etc.
The LED control appliance also comprises the storage card of storing optical control signal, and storage card is selected SD/MMC card etc. for use.
After the DMX512 delivery outlet sent to the LED light fixture with optical control signal by the RS485 bus that connects or RS422 bus, the LED light fixture was realized adjusting, the variation of color, brightness by optical control signal.
The fundamental diagram of LED light fixture adjusting light color can be referring to Fig. 2, and main control unit receives corresponding 3 road DMX512 channel value from the DMX512 delivery outlet, produces corresponding 3 tunnel pulse-width modulations (PWM) signal and gives the constant-current driving part.Constant-current driving redness (Red), green (Green), blue (Blue) LED lamp.Forming different color by the duty ratio that changes 3 road PWM changes.
The LED control appliance in the course of the work, can adopt online mode or offline mode, under online mode, the tcp/ip agreement that PC passes through sends to each LED control appliance in the network with hundreds of thousands road dim signal, each equipment receives dim signal separately, send down control light modulation loop, 2*512=1024 road, the full-color led DMX512 of control 2*170 light fixture by two groups of international standard DMX512 signals; Be connected to the full-color light fixture of DMX5121ed on the RS485 bus and receive corresponding 3 road DMX512 signals and change into 3 road pwm red, green, blue three groups of led light modulations, thus form full-color variation.
Under offline mode, optical control signal is divided into independent file, copy in SD or the mmc card, each control appliance connects by the off line sync cap and keeps synchronously, and from SD or mmc card, read separately optical control signal, send two groups of international standard DMX512 signals and send down, control light modulation loop, 2*512=1024 road, the full-color light fixture of control 2*170DMX512led; Be connected to the full-color light fixture of DMX512led on the RS485 bus and receive corresponding 3 road DMX512 signals and change into 3 road pwm red, green, blue three groups of led light modulations, thus form full-color variation.
LED control appliance in the utility model adopts the DMX512 protocol interface that LED is controlled, and can not cause the out of control of LED, and after a LED lamp breaks down, can the LED lamp that be connected not impacted; In addition, when realization is controlled LED, can adopt a plurality of LED control appliance on-line workings, over-burden can not cause each control appliance, the deadlock situation occurs.
The LED control appliance of describing in detail among the embodiment above to be set forth, all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1, a kind of LED control appliance, it is characterized in that, comprise: the off line sync cap that is used to receive/send synchronizing signal is connected with master controller, after described master controller carries out protocol conversion by the network interface reception optical control signal that connects, by the digital multi-channel transmission DMX512 delivery outlet output that connects, the LED that connects is controlled.
2, LED control appliance according to claim 1 is characterized in that, described DMX512 delivery outlet connects LED by RS485 bus or RS422 bus.
3, LED control appliance according to claim 1 is characterized in that, also comprises input Control Parameter liquid crystal control panel.
4, LED control appliance according to claim 1 is characterized in that, the LED control appliance also comprises the SD/MMC card of storing optical control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550548U CN201146625Y (en) | 2008-01-24 | 2008-01-24 | LED control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550548U CN201146625Y (en) | 2008-01-24 | 2008-01-24 | LED control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201146625Y true CN201146625Y (en) | 2008-11-05 |
Family
ID=40083509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200550548U Expired - Fee Related CN201146625Y (en) | 2008-01-24 | 2008-01-24 | LED control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201146625Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075776A1 (en) * | 2008-12-31 | 2010-07-08 | 嘉力时灯光设备(东莞)有限公司 | Power amplifier equipment based on dmx protocol |
| CN101827299A (en) * | 2008-12-31 | 2010-09-08 | 嘉力时(集团)有限公司 | DMX protocol-based power amplifying device |
| WO2011050700A1 (en) * | 2009-10-27 | 2011-05-05 | 嘉力时灯光设备(东莞)有限公司 | Control method, apparatus and systme based on zigbee |
| CN102892237A (en) * | 2012-10-23 | 2013-01-23 | 深圳市奥拓光电科技有限公司 | Stage lighting and all-color LED (Light Emitting Diode) panel mixing system and lighting signal conversion module thereof |
| CN103260298A (en) * | 2012-10-10 | 2013-08-21 | 四川九洲电器集团有限责任公司 | Digital multiplex (DMX) 512 lamp control device supporting read-write of SD card |
-
2008
- 2008-01-24 CN CNU2008200550548U patent/CN201146625Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075776A1 (en) * | 2008-12-31 | 2010-07-08 | 嘉力时灯光设备(东莞)有限公司 | Power amplifier equipment based on dmx protocol |
| CN101827299A (en) * | 2008-12-31 | 2010-09-08 | 嘉力时(集团)有限公司 | DMX protocol-based power amplifying device |
| CN101827299B (en) * | 2008-12-31 | 2016-12-07 | 嘉力时灯光设备(东莞)有限公司 | A kind of power amplifying device based on DMX agreement |
| WO2011050700A1 (en) * | 2009-10-27 | 2011-05-05 | 嘉力时灯光设备(东莞)有限公司 | Control method, apparatus and systme based on zigbee |
| CN103260298A (en) * | 2012-10-10 | 2013-08-21 | 四川九洲电器集团有限责任公司 | Digital multiplex (DMX) 512 lamp control device supporting read-write of SD card |
| CN102892237A (en) * | 2012-10-23 | 2013-01-23 | 深圳市奥拓光电科技有限公司 | Stage lighting and all-color LED (Light Emitting Diode) panel mixing system and lighting signal conversion module thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20130124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |