CN101969714A - Remote control interface and remote control method of LED driver - Google Patents
Remote control interface and remote control method of LED driver Download PDFInfo
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- CN101969714A CN101969714A CN2010102567615A CN201010256761A CN101969714A CN 101969714 A CN101969714 A CN 101969714A CN 2010102567615 A CN2010102567615 A CN 2010102567615A CN 201010256761 A CN201010256761 A CN 201010256761A CN 101969714 A CN101969714 A CN 101969714A
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Abstract
The invention discloses a remote control interface and a remote control method of an LED driver. The remote control interface comprises a power supply function pin, a data function pin and a communication module type identification function pin, wherein the power supply function pin is connected with a power supply unit of the LED driver on one hand and connected with a power supply unit of a communication module to be connected on the other hand; the data function pin is connected with a data transmission unit of the LED driver on one hand and connected with a data transmission unit of the communication module to be connected on the other hand; and the communication module type identification function pin is connected with a main control unit of the LED driver on one hand and connected with a type identifying unit of the communication module to be connected on the other hand. The LED remote control interface can be matched with a plurality of external communication modules to transmit multiple communication format data, thereby enhancing the generality of the LED driver.
Description
Technical field
The present invention relates to a kind of interface and application thereof, specifically, relate to a kind of long-range control method that is used for the RCI of led driver and has the led driver of this interface.
Background technology
The LED lamp is as a kind of new lighting source, because it has advantages such as light efficiency height, power consumption is few, the life-span is long, uses more and more widely in road lighting.And, because the LED light fixture has the driver that it is controlled,, can be more conducive in road lighting, use so that the LED light fixture has good dimming characteristic by different control signal Control Driver.
For realizing the far distance light regulation function of LED lamp, generally all be provided with RCI on the led driver, connect communication module by this interface and come the receiving remote control signal, utilize remote signal that the LED lamp is carried out brightness adjustment control.
At present, the RCI versatility that is provided with on the driver is relatively poor, is single communication interface, can only receive a kind of remote control signal of communications protocol form.Therefore, in actual applications,, need design to have the driver of various different RCIs, thereby cause led driver of a great variety, be unfavorable for the production and the application of driver for being complementary with remote control signal.
Summary of the invention
One of purpose of the present invention provides a kind of led driver RCI, is used to mate multiple external communication module, can carry out the transmission of multiple communication format data, improves the versatility of led driver.
For achieving the above object, the present invention adopts following technical proposals to be achieved:
A kind of led driver RCI, described interface comprises:
The power supply function pin, one side connects the power supply unit of led driver, connects the power supply power supply unit of communication module to be connected on the other hand;
The data function pin, one side connects the data transmission unit of led driver, connects the data transmission unit of communication module to be connected on the other hand;
Communication module type identification function pin, one side connects the main control unit of led driver, connects the type identification unit of communication module to be connected on the other hand.
Aforesaid RCI, described communication module type identification function pin is preferably the IO pin of interface, and can be according to the difference identification communication module type of the level signal of IO pin.
Aforesaid RCI, described data function pin preferably adopts the Serial Data Transfer Mode method, specifically, this pin comprises that serial data sends pin and serial data receives pin, the corresponding respectively data transmission unit of described led driver and the data transmission unit of communication module to be connected of connecting.
Aforesaid RCI, for increasing the interference free performance of whole system, described power supply function pin not only comprises the power supply pin, also comprises signal ground pin and power supply ground pin.
Aforesaid RCI, for strengthening the function of interface, described interface comprises that also several are used for the expanded function pin of interface function expansion, described expanded function pin is preferably the IO pin.
Two of purpose of the present invention provides a kind of led driver long-range control method, and this method is applicable to the led driver with above-mentioned led driver RCI, can realize that the communication between led driver and multiple communication module is handled.
A kind of led driver long-range control method, described method comprises the steps:
A, obtain the type identification signal of the communication module that is connected by the RCI of led driver;
B, led driver are discerned the type of communication module according to the type identification signal;
C, led driver carry out transfer of data according to the communication module type selecting communication modes of determining with the communication module that is connected.
What above-mentioned steps adopted the identification of communication module is the hardware identification method, on the other hand, the mode that can also adopt hardware identification to combine with software identification, specifically, aforesaid long-range control method also comprises following additional step between described step b and step c:
B1, led driver be according to communication module type selecting handshake, and be sent to the communication module that is connected by its RCI;
B2, communication module pass through RCI Returning communication type of module information to led driver.
Aforesaid long-range control method, reliability for Enhancement Method, in described additional step, if sending handshake to the communication module that is connected, led driver do not receive the type information that communication module returns yet above set point number, then withdraw from remote control process.
Aforesaid long-range control method, the type identification signal of communication module described in the step a is the level signal of RCI.
Compared with prior art, advantage of the present invention and good effect are: the diversified characteristics of communication type that the present invention is adopted when transmitting according to the led driver remote control signal, the general RCI of design led driver, in interface, be provided for discerning the identification pin of the type of the communication module that is connected, utilize leg signal to judge the communication module type, the host-host protocol of selecting then to be complementary with communication module in led driver carries out transfer of data, realize that a led driver can be connected use with the communication module of number of different types, improved the versatility of led driver, simplify the driver production process, reduced driver production and application cost.
After reading the specific embodiment of the present invention in conjunction with the accompanying drawings, other characteristics of the present invention and advantage will become clearer.
Description of drawings
Fig. 1 is the application structure schematic diagram of an embodiment of led driver RCI of the present invention;
Fig. 2 is the pin configuration schematic diagram of an embodiment of led driver RCI of the present invention;
Fig. 3 is the flow chart of an embodiment of led driver long-range control method of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in further detail.
Led driver is as the drive part of LED lamp, can be connected with the telecommunication module by RCI is set, on the one hand can the receiving remote control signal realize brightness adjustment control, can realize on the other hand the remote status of led driver is detected the LED lamp that is driven.For the RCI function singleness that solves existing led driver, can only connect a kind of communication module of communication modes and cause the various problem of led driver type, the present invention proposes the stronger led driver RCI of a kind of versatility, concrete technical scheme can be referring to the description of following embodiment.
Application structure schematic diagram referring to an embodiment of led driver RCI of the present invention shown in Figure 1.
As shown in Figure 1, the RCI 2 of this embodiment is used to connect led driver 1 and communication module 3, so that realize the communication of led driver 1 and communication module 3.RCI 2 can adopt and be built in the led driver 1 or lead to set-up mode outside the led driver 1.
In this embodiment, RCI 2 includes power supply function pin 21, data function pin 22 and communication module type identification function pin 23.
Specifically, the annexation of each function pin and function are as follows:
Power supply function pin 21 connects the power supply unit 11 of led driver 1 on the one hand, the power supply power supply unit 31 that connects communication module to be connected 3 on the other hand, the purpose that realization is powered for external communication module 3 by led driver 1, the power supply that simplifies communication module 3 designs.
Data function pin 22 is connected with the data transmission unit 12 of led driver 1 on the one hand, connects the data transmission unit 32 of communication module to be connected 3 on the other hand, thereby realizes the transmitted in both directions communication of data between led driver 1 and the communication module 3.
Communication module type identification function pin 23 connects the main control unit 13 in the led driver 1 on the one hand as the key component of RCI 2 realization versatilities, connects the type identification unit 33 in the communication module to be connected 3 on the other hand.The main control unit 13 of led driver 1 can be by reading the leg signal of communication module type identification function pin 23, obtain the type identification information that the type identification unit 23 of communication module 3 provides, thereby judge the type that is connected the communication module 3 on the RCI 2, so that communication modes and communication module 3 that led driver 1 is selected to be complementary carry out communication, realize the transmitted in both directions of data between the two.
Adopt the RCI of said structure, led driver can identify the type of the communication module that is connected, and the host-host protocol that selection and communication module are complementary carries out transfer of data, realize that a led driver can be connected use with the communication module of number of different types, improved the versatility of led driver, simplify the driver production process, reduced the production and the application cost of driver.
In addition,, also include the expanded function pin 24 that is used for the interface function expansion in the RCI 2, respectively with the main control unit 34 corresponding connections of the main control unit 13 and the communication module 3 of led driver 1 for strengthening interface function, being convenient to carry out the function expansion.
Fig. 2 shows the concrete pin configuration schematic diagram of an embodiment of led driver RCI of the present invention, this embodiment only shows the pinout of the side that is connected with communication module, and the pinout of the side that is connected with led driver can be with reference to the pinout that provides.
As shown in Figure 2, the power supply function pin of the RCI of this embodiment includes 3, be respectively power supply VCC pin Pin1, signal ground SGND pin Pin9 and power supply ground PGND pin Pin2, wherein, power supply VCC can adopt+power supply of 5V power supply, or selects the power supply of other magnitudes of voltage as required.The purpose that signal ground SGND and power supply ground PGND are separated is for strengthening the interference free performance of whole system; Certainly, in the less demanding application system to interference free performance, a ground pin can only be set also, this moment, RCI adopted the pinout form of 8Pin.
Based on led driver, the data function pin of the RCI of this embodiment comprises that serial data sends TxD pin Pin4 and serial data receives RxD pin Pin3, is used for connecting the data transmission unit of communication module.The data function pin is when data transmission unit in the led driver is connected, and data transmission unit can be the asynchronous serial data bus interface of main control unit in the led driver.
In addition, the RCI of this embodiment also includes 4 IO pins, is respectively IO1 pin Pin5, IO2 pin Pin6, IO3 pin Pin7 and IO4 pin Pin8.In these 4 IO pins, can select one or more IO pins as communication module type identification function pin as required, the residue pin can be used as the expanded function pin and uses.For example, select IO1 pin Pin5 and IO2 pin Pin6 as communication module type identification function pin, utilize that two pins export low, just, the level signals of low high and high high 4 kinds of various combinations, can judge whether that communication module inserts and realize the identification to 3 class communication module types.And all the other two can be used as extended pin, for example when the communication module type that is connected is RS485, can utilize one of them extended pin to determine the direction of communication of the RS485 of half duplex communication.
The RCI of this embodiment can adopt various forms of 9Pi n connectors, as connecting connector on aerial butt joint connector or the plate.Preferably select the circular air interface plug-in unit of 9Pin for use, to improve the exchange performance and the barrier propterty of interface.
In addition, for realizing compatible, the simplification interface operation between each several part, the level of RCI can be unified the TTL interface level for standard.
The present invention also provides a kind of led driver long-range control method based on this RCI except that the led driver RCI is provided.This method is based on the RCI that is provided with communication module type identification function, at first obtain the type identification signal of the communication module that is connected by the RCI of led driver, then, led driver is according to the type of type identification signal identification communication module, and according to the communication module type selecting communication modes of determining, carry out transfer of data with the communication module that is connected, realize the Long-distance Control of led driver.
Said method is a type of only discerning communication module by the hardware identification method, but for increasing the quantity of identification types, the recognition methods that can also adopt the identification of hardware identification and software to combine.Specifically, adopt above-mentioned hardware identification method to identify the fundamental type of communication module, can include multiple particular type again in the fundamental type, adopt the software recognition methods to identify the particular type of communication module then from fundamental type, led driver selects appropriate communication mode and communication module to carry out communication according to particular type.
Fig. 3 shows the flow chart of an embodiment of led driver long-range control method of the present invention.The long-range control method of this embodiment is when identification communication module type, with the mode that adopts the identification of hardware identification and software to combine.Its specific implementation step is as follows:
S301: system initialization comprises the initialization of led driver and communication module.
The S302:LED driver reads the level signal of its RCI.
The structure of this RCI can be referring to the RCI embodiment described in above-mentioned Fig. 1 and Fig. 2 embodiment.In this long-range control method embodiment, it is the level signal of RCI that hardware approach is differentiated the type identification signal that is connected the communication module on the RCI.Led driver reads the level signal of RCI, also promptly obtains the type identification signal of the communication module that is connected.This and the corresponding interface level signal of communication module type preestablish, and led driver has read the type that level signal can be judged the communication module that whether is connected with communication module and is connected.
S303: judged whether that module inserts.If have access to module, execution in step S304; Otherwise, go to the level signal that step S302 continues to read RCI.
S304: according to the fundamental type of the level signal identification communication module that reads.
The S305:LED driver is selected handshake according to the fundamental type of the communication module that identifies, and is sent to communication module by the transfer of data pin in the RCI.
S306: the return information that judges whether to receive communication module.If, go to step S309; Otherwise, execution in step S307.
Send handshake to communication module at led driver, communication module should return its particular type information to led driver, so that led driver selects corresponding communications protocol and communication module to carry out communication.
S307: judge whether led driver has surpassed set point number to the number of times that communication module sends handshake.If surpass execution in step S308; Otherwise, go to step S305 and continue to send handshake.The purpose that this step is set is the reliability of Enhancement Method, prevents to expend system resource because of the reaction of waiting for communication module without limit.Set point number can be set according to system's actual motion condition and requirement etc. are concrete, for example, can be set at 3 times.
S308: when in the number of times of shaking hands of regulation, not receiving the return information of communication module yet, then judge the communication module fault, no longer carry out module type judgement and communication and handle, withdraw from remote control process, go to step S311.
S309:, then determine the particular type of module according to return information if in the number of times of shaking hands of regulation, receive the return information of communication module.
S310: carry out communication according to corresponding communication modes of determined communication module type selecting and communication module, realize to the LED lamp that led driver drove brightness adjustment control, to the functions such as remote status detection of led driver.
After communication finishes, go to step S311.
Other processes of S311:LED drive processes.
Above embodiment is only in order to illustrating technical scheme of the present invention, but not limits it; Although the present invention is had been described in detail with reference to previous embodiment, for the person of ordinary skill of the art, still can make amendment to the technical scheme that previous embodiment is put down in writing, perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of the present invention's technical scheme required for protection.
Claims (9)
1. a led driver RCI is characterized in that, described interface comprises:
The power supply function pin, one side connects the power supply unit of led driver, connects the power supply power supply unit of communication module to be connected on the other hand;
The data function pin, one side connects the data transmission unit of led driver, connects the data transmission unit of communication module to be connected on the other hand;
Communication module type identification function pin, one side connects the main control unit of led driver, connects the type identification unit of communication module to be connected on the other hand.
2. RCI according to claim 2 is characterized in that, described communication module type identification function pin is the IO pin.
3. RCI according to claim 1, it is characterized in that, described data function pin comprises that serial data sends pin and serial data receives pin, the corresponding respectively data transmission unit of described led driver and the data transmission unit of communication module to be connected of connecting.
4. RCI according to claim 1 is characterized in that, described power supply function pin comprises power supply pin, signal ground pin and power supply ground pin.
5. according to each described RCI in the claim 1 to 4, it is characterized in that described interface comprises that also several are used for the expanded function pin of interface function expansion, described expanded function pin is the I0 pin.
6. a led driver long-range control method is characterized in that, described method comprises the steps:
A, obtain the type identification signal of the communication module that is connected by the RCI of led driver;
B, led driver are discerned the type of communication module according to the type identification signal;
C, led driver carry out transfer of data according to the communication module type selecting communication modes of determining with the communication module that is connected.
7. long-range control method according to claim 6 is characterized in that, also comprises following additional step between described step b and step c:
B1, led driver be according to communication module type selecting handshake, and be sent to the communication module that is connected by its RCI;
B2, communication module pass through RCI Returning communication type of module information to led driver.
8. long-range control method according to claim 7, it is characterized in that, in described additional step, if sending handshake to the communication module that is connected, led driver do not receive the type information that communication module returns yet above set point number, then withdraw from remote control process.
9. according to each described long-range control method in the claim 6 to 8, it is characterized in that the type identification signal of described communication module is the level signal of RCI.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102567615A CN101969714A (en) | 2010-08-11 | 2010-08-11 | Remote control interface and remote control method of LED driver |
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| CN2010102567615A CN101969714A (en) | 2010-08-11 | 2010-08-11 | Remote control interface and remote control method of LED driver |
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| CN101969714A true CN101969714A (en) | 2011-02-09 |
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| CN2010102567615A Pending CN101969714A (en) | 2010-08-11 | 2010-08-11 | Remote control interface and remote control method of LED driver |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108595364A (en) * | 2018-04-28 | 2018-09-28 | 深圳市华星光电技术有限公司 | Data transmission system and data transmission method |
| CN111489679A (en) * | 2020-05-15 | 2020-08-04 | Tcl华星光电技术有限公司 | Control method and device of time schedule controller and electronic equipment |
| CN112530379A (en) * | 2019-09-18 | 2021-03-19 | 咸阳彩虹光电科技有限公司 | Display device and interface type selection method thereof |
| CN113937851A (en) * | 2021-09-30 | 2022-01-14 | 厦门盈趣科技股份有限公司 | Energy-saving power supply system and method of mobile robot and mobile terminal |
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| CN101489340A (en) * | 2008-01-16 | 2009-07-22 | 松下电工株式会社 | Illuminating system |
| CN101523986A (en) * | 2006-09-29 | 2009-09-02 | 三多尼克爱特克两合股份有限公司 | Operating device and method for operating luminous means |
| CN201830502U (en) * | 2010-08-11 | 2011-05-11 | 青岛锐晶光电科技有限公司 | Light emitting diode (LED) driver remote control interface |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101523986A (en) * | 2006-09-29 | 2009-09-02 | 三多尼克爱特克两合股份有限公司 | Operating device and method for operating luminous means |
| CN101489340A (en) * | 2008-01-16 | 2009-07-22 | 松下电工株式会社 | Illuminating system |
| CN201830502U (en) * | 2010-08-11 | 2011-05-11 | 青岛锐晶光电科技有限公司 | Light emitting diode (LED) driver remote control interface |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108595364A (en) * | 2018-04-28 | 2018-09-28 | 深圳市华星光电技术有限公司 | Data transmission system and data transmission method |
| CN112530379A (en) * | 2019-09-18 | 2021-03-19 | 咸阳彩虹光电科技有限公司 | Display device and interface type selection method thereof |
| CN111489679A (en) * | 2020-05-15 | 2020-08-04 | Tcl华星光电技术有限公司 | Control method and device of time schedule controller and electronic equipment |
| CN113937851A (en) * | 2021-09-30 | 2022-01-14 | 厦门盈趣科技股份有限公司 | Energy-saving power supply system and method of mobile robot and mobile terminal |
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Application publication date: 20110209 |