CN201789667U - Intelligent light-emitting diode (LED) lamp controller - Google Patents
Intelligent light-emitting diode (LED) lamp controller Download PDFInfo
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- CN201789667U CN201789667U CN2010205220861U CN201020522086U CN201789667U CN 201789667 U CN201789667 U CN 201789667U CN 2010205220861 U CN2010205220861 U CN 2010205220861U CN 201020522086 U CN201020522086 U CN 201020522086U CN 201789667 U CN201789667 U CN 201789667U
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- 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
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Abstract
The utility model relates to an intelligent light-emitting diode (LED) lamp controller. The lamp controller is provided with a parallel/serial conversion unit which is connected with a decoding module. When all LED lamps do not compile address codes, but normally receive data transmitted by a DMX512 signal generator, input RS485 buses of the lamps are connected in parallel with output RS485 buses, namely, each lamp performs data communication with the DMX512 signal generator through parallel connection of the input RS485 bus and the output RS485 bus to a public output RS485 bus. When an address encoder compiles the address code for the lamp, the decoding module controls the parallel/serial conversion unit so as to connect the parallel input and output RS485 buses in series. The intelligent LED lamp controller has the advantages that: other lamps are not affected if one lamp fails, lamp installation sequence and position can be changed optionally and the entire system lamp communicates through the bus once the address is compiled only when automatic address encoding is serial.
Description
Technical field
The utility model relates to light fixture control technology field, is specifically related to a kind of based on DMX512 Protocols of LED lamp controller.
Background technology
The DMX512 decoder module address setting of traditional LED light fixture is that dispatch from the factory fixing, site operation dial-up and on-the-spot external addressing device only set single cover light fixture, but since in the face of the LED light fixture market of today enlarges day by day, more than the quantity, present situation such as stable, the classification of waterproof height of lamp system, Zhi Qian decoder module just seems unable to do what one wishes to the address mode of operation so.After lamp installation was good, whatsoever light fixture all needed energising test, particularly also need debug the LED light fixture of needs control, and edit effect is seen whether he meets to design primitive request originally, uses in maximum systems in current engineering and can be said to be DMX512.How does the DMX512 system debug so? what quantity was maximum in whole system is light fixture, and each lamp interior all has decoded portion, drive part, input three big master units are formed, want to each light fixture independent carry out light modulation toning, so physical address corresponding must be arranged, traditional LED light fixture is operated in the SPI pattern, need not the address like this, data are passed through shift transport, but this type of light fixture is more and more no longer widely applied in the engineering, because it is as long as a light fixture damages, the light fixture of going here and there so below it is not controlled all, the signal of its transmission is a Transistor-Transistor Logic level in addition, this has just caused its transmission range very near, about 60CM, and the DMX512 system that promotes mainly now is a RS485 bus distributing differential transfer, even a light fixture damages the light fixture that does not influence other, and the transmission range of light fixture and light fixture is far, can reach 500 meters, how is the address to be input to light fixture? key point is just at this, now common on the market have three kinds to write the location mode: 1) address fixed form: light fixture is when manufacturer production, suppose to have 100 light fixtures, the technical staff generates 100 different HEX codes by revising inner program variable, and address 1----is to address 100, then write among the MCU of these 100 light fixtures, must correspondingly one by one on lamp outer casing, paste corresponding address tag certainly.After light fixture dispatched from the factory, the client was according to the sequenced installation of address tag that is attached on the shell.The shortcoming of this design: when the light fixture amount is big, inefficiency, the labour increases, and it is wrong to obscure dress easily, safeguards inconvenience very; 2) dial-up mode: 8 electronics toggle switchs are installed on the lamp interior control board of light fixture manufacturer production, and the program of MCU is the same, and the back client of dispatching from the factory pushes the corresponding address sign indicating number according to corresponding installation site.This design only is fit to indoor light fixture, does not require waterproof, and the client stretches out one's hand and just can stir switch inside.But present LED light fixture great majority all are contained in outdoor, require waterproof effect to reach more than the IP67, control section all has been made in lamp interior, can not open shell one by one comes group another one on good switch to load onto shell, efficient is very low like this, limitation is big, has wasted too many labour.3) online single light fixture is write the location mode, this design has an advantage a little than preceding two kinds, the address code that light fixture sends host computer (writing the location device) is stored among the EEPROM that MCU carries, power at every turn and just from EEPROM, read address code, mode of operation is: all be the same when light fixture dispatches from the factory, when the client before lamp installation, earlier light fixture is write the location, once can only write one, after finishing writing light fixture is installed to corresponding position, just write a light fixture address code, adorn one, if which lamp has problem when Operation and Maintenance, it must be pulled down, must know the position of this lamp after fixing, its address code could be write, the shortcoming of this technology: efficient is also relatively lower, and it is also not too convenient to safeguard.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of can unified addressing, to the random intelligent LED lamp controller of change in lamp installation order and position.
In order to solve the problems of the technologies described above, the utility model by the following technical solutions:
A kind of intelligent LED lamp controller, comprise the decoder module of being located at lamp interior, LED drive part and be used for writing the addressing device of location to the light fixture unification, it is characterized in that: it also is provided with a parallel/series converting unit, the parallel/series converting unit links to each other with decoder module, all LED light fixtures non-when writing address code and when normally accepting the data that the DMX512 signal generator sends the input RS485 bus and the output RS485 bus of light fixture be the relation of being connected in parallel, be that each light fixture all carries out data communication with the DMX512 signal generator by input RS485 bus and output RS485 bus parallel connection on public RS485 bus, when the addressing device was write address code to light fixture, decoder module control parallel/series converting unit became input and output RS485 bus in parallel in the light fixture and is connected in series.
Described decoder module is by input RS485 level shifter interface, microprocessor MCU, output RS485 level shifter interface is formed, input RS485 bus and the differential signal end (A that imports the RS485 level shifter interface, B) connect, the data output end R of input RS485 level shifter interface links to each other by the data-signal receiving terminal RXD of connecting line and microprocessor MCU, microprocessor MCU links to each other by the Data Receiving/transmission Enable Pin RE/DE of I/O mouth with output RS485 level shifter interface, the data-signal transmitting terminal TXD of microprocessor MCU links to each other by the data input pin D of connecting line with output RS485 level shifter interface, becomes differential signal through differential signal end A by output RS485 level shifter interface, B output.
Described parallel/series converting unit is a relay, and 3. differential signal end A, the B of output RS485 level shifter interface are connected with the moving contact of relay by connecting line; 1. differential signal end A, the B of input RS485 level shifter interface link to each other with the moving contact of relay by connecting line, 2. the normally closed fixed contact of relay directly links to each other with output RS485 bus lead end, relay coil not when electric, 1. and 2. the contact is normally off, is a holding wire by relay contact between input RS485 bus port and the output RS485 bus port; 1. and 2. the MCU fill order of light fixture decoder module gets electric back contact with relay and disconnects, the contact 2. and 3. conducting, input and output RS485 bus in parallel becomes and is connected in series in the light fixture.
Described addressing device comprises microprocessor MCU, display module, function button, RS485 level shifter interface, MCU is connected with display module, function button respectively by data wire, MCU is connected with the data input pin D of RS485 level shifter interface by its inner UART Universal Asynchronous Receiver Transmitter UART, change by the inner joint chip, becoming differential signal exports through differential signal end A, B, when light fixture was write address code, the RS485 level shifter interface of addressing device linked to each other with public RS485 bus through differential signal end A, B.
The addressing device with a branch road on can connect 170 light fixtures by the signal relay amplifier.
The utility model compared with prior art has following beneficial effect: all light fixtures non-when writing address code and when normally accepting the data that the DMX512 signal generator sends the input RS485 bus and the output RS485 bus of light fixture be the relation of being connected in parallel, light fixture all is public RS485 bus when the data that the normal DMX512 control of operation platform sends, a light fixture breaks down and does not influence other light fixtures, lamp installation order and position can arbitrarily be changed, only be that serial is gone down when automatic addressing, in case after finished the address, whole system's light fixture all was to take the bus parallel communication.Be mainly used in square, building, bridge, river levee, megastore, recreation center and centralized control light modulation variable color is carried out in place such as indoor.The efficient height of project installation and debugging has shortened the duration, saves cost, has guaranteed the stability and the maintainability of product more.
Description of drawings
Fig. 1 is a system block diagram of the present utility model
Fig. 2 is the lamp interior circuit module
Fig. 3 is addressing device block diagram
Embodiment
Referring to Fig. 1, comprise DMX512 signal generator (1), addressing device (2) and light fixture (3), as shown in Figure 1, all light fixtures non-when writing address code and when normally accepting the data that the DMX512 signal generator sends the input RS485 bus and the output RS485 bus of light fixture be the relation of being connected in parallel, be that each light fixture all carries out data communication with the DMX512 signal generator by input RS485 bus and output RS485 bus parallel connection on public RS485 bus, the DMX512 signal generator is responsible for the DXM signal of the standard that sends, the DMX512 signal generator can communicate to connect with a host computer (PC), form the communication of local area network (LAN) ICP/IP protocol, host computer mainly is responsible for the running parameter of configuration DMX512 signal generator and monitors light fixture operating state (DMX512 control system principle and host computer are widely applied, just have not been described in detail) here in engineering.After all light fixtures are installed, check whether wrong of circuit,, the addressing device hung over unified on the public RS485 bus of front end all light fixtures are carried out online addressing, take the addressing device after finishing away, change the DMX512 signal generator as out of question.
Referring to Fig. 2, each light fixture (3) inside comprises decoder module (4), LED drive part (5), LED luminous displaing part branch (6) and a parallel/series converting unit (7), parallel/series converting unit (7) links to each other with decoder module (4), when addressing device (2) when light fixture is write address code, decoder module (4) control parallel/series converting unit (7) becomes input and output RS485 bus in parallel in the light fixture and is connected in series.Decoder module is by input RS485 level shifter interface, microprocessor MCU, output RS485 level shifter interface is formed, input RS485 bus and the differential signal end A that imports the RS485 level shifter interface, B connects, the data output end R of input RS485 level shifter interface links to each other by the data-signal receiving terminal RXD of connecting line and microprocessor MCU, microprocessor MCU links to each other by the Data Receiving/transmission Enable Pin RE/DE of I/O mouth with output RS485 level shifter interface, the data-signal transmitting terminal TXD of microprocessor MCU links to each other by the data input pin D of connecting line with output RS485 level shifter interface, become differential signal through differential signal end A by output RS485 level shifter interface, B output, microprocessor MCU links to each other with the LED drive part by its I/O mouth, and the LED drive part is by metal-oxide-semiconductor or the special-purpose direct driving LED luminous displaing part of constant current IC branch.
The parallel/series converting unit is a relay in the present embodiment, certainly also may adopt the element of describing in other prior art that can replace relay, 3. differential signal end A, the B of output RS485 level shifter interface are connected with the moving contact of relay by connecting line; 1. differential signal end A, the B of input RS485 level shifter interface link to each other with the moving contact of relay by connecting line, and 2. the normally closed fixed contact of relay directly links to each other with output RS485 bus lead end.
Referring to Fig. 3, the addressing device comprises microprocessor MCU, display module, function button, RS485 level shifter interface, MCU is connected with display module, function button respectively by data wire, MCU is connected with the data input pin D of RS485 level shifter interface by its inner UART Universal Asynchronous Receiver Transmitter UART, by the conversion of inner joint chip, become differential signal and export through differential signal end A, B.Addressing device explanation: press when function key and to enter when writing the location pattern, the data frame format that the MCU of addressing device sends is that 0x55 (command code), 0x01 (address code, data area 0x01 is to 0xAA), these data time-sharing multiplex buses of 0x36 0x66 (check code) are by the output of RS485 interface chip; The addressing device with a branch road on can connect 170 light fixtures by the signal relay amplifier, establishment just compiles 170 from 1 in proper order.
When light fixture is write address code, the RS485 level shifter interface of addressing device links to each other with public RS485 bus through differential signal end A, B, relay coil not when electric, 1. and 2. the contact is normally off, and just importing between RS485 bus port and the output RS485 bus port is a holding wire by relay contact in fact; Light fixture is when writing address code, the MCU that at first addresses device sends addressing command code (0x55), input RS485 level shifter interface becomes the CMOS level by the internal conversion of interface chip, and data output end R output from interface chip, since light fixture non-when writing the location input and output RS485 bus all be connected in parallel, the MCU of all light fixtures has received addressing command code (0x55) so, MCU fill order in this moment light fixture decoder module makes relay get electric back contact 1. and 2. to disconnect, the contact 2. and 3. conducting, input and output RS485 bus in parallel in the light fixture becomes series connection (one-in-and-one-out); The MCU transmission address code (0x01) of addressing device and check code (0x36+0x66=0x9c) are given and are hung over first light fixture on the bus; As address code 0x01, after first light fixture is received address code 0x01, the control pin (sending Enable Pin DE) that the MCU of this first light fixture decoder module will export the RS485 level shifter interface becomes high level, be in transmit status, and the MCU of lamp interior adds the MCU that sends to second light fixture after 1 certainly with previous address code, it (all is low level at ordinary times that the control pin of output RS485 level shifter interface after distributing (reception Enable Pin RE) becomes low level, cause mistake to send out for guaranteeing that signal disturbs), the 3rd light fixture by that analogy, the 4th light fixture, the 5th light fixture waited until last light fixture, finish the address of oneself when all light fixtures after, the bright color of LED luminous tube is opposite with color before the addressing, illustrates that the address successfully writes.Take the addressing device away after finishing the address, change the DMX512 signal generator, whole system's light fixture all is again to take the bus parallel communication.
The MCU of lamp interior receives after the data that the DMX512 signal generator sends, and the MCU internal processes is handled, and directly drives the CMOS pipe or triode reaches dimming effect, the adjustable 1--256 of RGB brightness degree by the software simulation pwm signal; Can realize 16777216 kinds of very color variations, the non-jitter phenomenon.
All communications all are to adopt 485 communications of UART half-duplex RS, during addressing and normal when running the DMX512 signal baud rate be 250KBPS, the RS485 bus is the distributing asynchronous transmission, long transmission distance, can reach 500 meters, the DMX512 agreement is the method deal with data that the light fixture of standard adopts time-sharing multiplex, does not disturb mutually; Light fixture all is public RS485 bus when the data that the normal DMX512 control of operation platform sends, a light fixture breaks down and does not influence other light fixtures, only be that serial is gone down when automatic addressing, in case after finished the address, whole system's light fixture all was to take the bus parallel communication.
Claims (5)
1. intelligent LED lamp controller, comprise the decoder module of being located at lamp interior, LED drive part and be used for writing the addressing device of location to the light fixture unification, it is characterized in that: it also is provided with a parallel/series converting unit, the parallel/series converting unit links to each other with decoder module, all LED light fixtures non-when writing address code and when normally accepting the data that the DMX512 signal generator sends the input RS485 bus and the output RS485 bus of light fixture be the relation of being connected in parallel, be that each light fixture all carries out data communication with the DMX512 signal generator by input RS485 bus and output RS485 bus parallel connection on public RS485 bus, when the addressing device was write address code to light fixture, decoder module control parallel/series converting unit became input and output RS485 bus in parallel in the light fixture and is connected in series.
2. a kind of intelligent LED lamp controller as claimed in claim 1, it is characterized in that: described decoder module is by input RS485 level shifter interface, microprocessor MCU, output RS485 level shifter interface is formed, input RS485 bus and the differential signal end (A that imports the RS485 level shifter interface, B) connect, the data output end R of input RS485 level shifter interface links to each other by the data-signal receiving terminal RXD of connecting line and microprocessor MCU, microprocessor MCU links to each other by the Data Receiving/transmission Enable Pin RE/DE of I/O mouth with output RS485 level shifter interface, the data-signal transmitting terminal TXD of microprocessor MCU links to each other by the data input pin D of connecting line with output RS485 level shifter interface, becomes differential signal through differential signal end A by output RS485 level shifter interface, B output.
3. described a kind of intelligent LED lamp controller as claimed in claim 2, it is characterized in that: described parallel/series converting unit is a relay, and 3. differential signal end A, the B of output RS485 level shifter interface are connected with the moving contact of relay by connecting line; 1. differential signal end A, the B of input RS485 level shifter interface link to each other with the moving contact of relay by connecting line, 2. the normally closed fixed contact of relay directly links to each other with output RS485 bus lead end, relay coil not when electric, 1. and 2. the contact is normally off, is a holding wire by relay contact between input RS485 bus port and the output RS485 bus port; 1. and 2. the MCU fill order of light fixture decoder module gets electric back contact with relay and disconnects, the contact 2. and 3. conducting, input and output RS485 bus in parallel becomes and is connected in series in the light fixture.
4. a kind of intelligent LED lamp controller as claimed in claim 1 or 2, it is characterized in that: described addressing device comprises microprocessor MCU, display module, function button, the RS485 level shifter interface, MCU by data wire respectively with display module, function button is connected, MCU is connected with the data input pin D of RS485 level shifter interface by its inner UART Universal Asynchronous Receiver Transmitter UART, change by the inner joint chip, become differential signal through differential signal end A, B output, when light fixture was write address code, the RS485 level shifter interface of addressing device was through differential signal end A, B links to each other with public RS485 bus.
5. a kind of intelligent LED lamp controller as claimed in claim 3 is characterized in that: the addressing device with a branch road on can connect 170 light fixtures by the signal relay amplifier.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205220861U CN201789667U (en) | 2010-09-06 | 2010-09-06 | Intelligent light-emitting diode (LED) lamp controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205220861U CN201789667U (en) | 2010-09-06 | 2010-09-06 | Intelligent light-emitting diode (LED) lamp controller |
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| CN201789667U true CN201789667U (en) | 2011-04-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331762A (en) * | 2011-07-20 | 2012-01-25 | 四川九洲光电科技股份有限公司 | Control system implemented by mode that master station writes in address codes by RS-485 buses and method thereof |
| CN103268751A (en) * | 2013-05-09 | 2013-08-28 | 深圳市明微电子股份有限公司 | Address code writing-in method and system of LED display devices |
| CN103298212A (en) * | 2013-05-28 | 2013-09-11 | 深圳市泓亚光电子有限公司 | Control method and control device for illuminating lamps |
| CN106211503A (en) * | 2016-07-04 | 2016-12-07 | 广州市鸿远电子科技有限公司 | A kind of method based on DMX512 control platform configuration light fixture device parameter |
-
2010
- 2010-09-06 CN CN2010205220861U patent/CN201789667U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331762A (en) * | 2011-07-20 | 2012-01-25 | 四川九洲光电科技股份有限公司 | Control system implemented by mode that master station writes in address codes by RS-485 buses and method thereof |
| CN103268751A (en) * | 2013-05-09 | 2013-08-28 | 深圳市明微电子股份有限公司 | Address code writing-in method and system of LED display devices |
| CN103268751B (en) * | 2013-05-09 | 2015-10-21 | 深圳市明微电子股份有限公司 | A kind of geocoding wiring method of LED display and system |
| CN103298212A (en) * | 2013-05-28 | 2013-09-11 | 深圳市泓亚光电子有限公司 | Control method and control device for illuminating lamps |
| CN103298212B (en) * | 2013-05-28 | 2016-03-02 | 深圳市泓亚光电子有限公司 | A kind of method for controlling illuminating lamp and device |
| CN106211503A (en) * | 2016-07-04 | 2016-12-07 | 广州市鸿远电子科技有限公司 | A kind of method based on DMX512 control platform configuration light fixture device parameter |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20110406 |