CN201434324Y

CN201434324Y - LED luminaire based on primary function mode

Info

Publication number: CN201434324Y
Application number: CN2009200564827U
Authority: CN
Inventors: 李韬; 王前
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2009-05-13
Filing date: 2009-05-13
Publication date: 2010-03-31
Anticipated expiration: 2019-05-13

Abstract

The utility model relates to an LED luminaire based on a primary function mode, which comprises a plurality of LED lamps as a plurality of pixels, a control module and an LED lamp drive circuit, wherein the control module is used to provide color information for the LED lamps, and the LED lamp drive circuit is used to drive the corresponding LED lamps to display corresponding colors according to the provided color information. The control module comprises a plurality of primary function storage units, an address storage unit, a data-parsing unit and a primary function extraction unit; the primary function storage units are respectively used to store different primary functions, and the color information of each pixel of each primary function has a one-to-one correspondence with each pixelformed by an LED lamp; the address storage unit is used to store lamp addresses; the data-parsing unit is used to parse light effect data inputted from the outside according to the stored addresses inorder to obtain a primary function; and the primary function extraction unit is used to extract the corresponding primary function from the corresponding primary function storage unit according to the parsed primary function, so that the LED lamp drive unit can drive the LED lamps according to the color information of each pixel in the provided primary function.

Description

LED light fixture based on primary function mode

Technical field

The utility model relates to a kind of LED light fixture, particularly a kind of LED light fixture based on primary function mode.

Background technology

At present, be applied to the LED of lighting field, no matter, all be better than traditional lighting at luminous efficiency, environmental protection power saving, illumination color harmony rich color, service life, shatter-proof aspect such as shock-resistant.Though also there is the problem that cost is higher and system effectiveness remains to be improved in LED illumination at present, along with overcoming of LED technical bottleneck, LED illumination application market scale will be grown up continuously and healthily, wherein the desirable of the application of LED in architectural lighting.In the construction landscape illumination, LED is mainly used in aspects such as building decoration, interior decoration, tourist attractions decoration, LED also is used for the decorative lighting in important building, commercial center, the scenic spots and historical sites, bridge, household, amusement and recreation place, and collection is decorated and advertisement is the commercial lighting of one.

The control protocol of main flow is the DMX512 control protocol in the industry of LED light control at present.The DMX512 agreement designs for light of stage control the earliest, and it is a Physical layer with the RS-485 industrial bus.Common lighting effects can be divided into a plurality of pictures, each picture is called a frame, frame data comprise 512 bytes at most in the DMX512 agreement, and a pixel is 3 bytes (red, green, blue), so DMX512 can only support about 170 pixels; If picture is excessive, then needing main controller is the unit with 512 bytes, data are delivered to respectively respectively from the control device, as shown in Figure 1, main controller is delivered to respectively each frame light modulation brightness data from the control device by Ethernet Cat5 or RS485 bus, and respectively is connected with each light fixture by RS485 bus (3 line) from the control device.Because the simplicity and the practicality of DMX512 agreement, and the reliability of RS-485 bus make the DMX512 agreement be used widely in LED light control field.

But because the RS-485 bus transfer rate is 250Kbps, be difficult to independent make up large-scale lighting system and be applied in the landscape light in city such as external wall, therefore, adopt spi bus transmission control mode mostly in the domestic LED lamp light control system that is applied to external wall etc., wherein, product with the little digital device of celebrating in Beijing development corporation, Ltd. is representative, has occupied most of market share in this field.Adopt the spi bus transmission means can realize that large-scale exterior wall shows control, for the DMX512 system, it controls cost lower, but stability is poorer than the DMX system, and if the problem that exists a LED lamp damage will cause the light fixture of back to work in the SPI train.Therefore, present domestic LED light control field middle and small scale LED system almost is the DMX512 system all, the spi bus systems that adopt of extensive LED system (the above pixel of 5K) more.

Yet, no matter be present DMX512 system or SPI system, all be to belong to the plane animation system, be applied to mostly in the planar applications such as external wall.For the application of lines types such as road, bridge, riverside, adopt existing DMX system and SPI system to be difficult to realize.Because each controller output port of standard DMX512 system can be controlled 170 pixels at most, many producers also become standard DMX512 system extension the DMX1024 system makes system can control 340 pixels, but cost is that the highest refresh rate of system is reduced to 22Hz from 44Hz; Also can only reach 256 pixels and the control ability of each output port of spi bus system is the highest.Just because of existing DMX system and the controllable pixel of SPI system are few, when being applied to the control of lines type LED light such as road, bridge, needing a plurality of data distributors or constitute the line style system from the control device.See also Fig. 2, it is existing SPI system line style control effect schematic diagram, earlier data are delivered to each data distributor by main controller, by data distributor data are delivered to corresponding each difference engine again, and each difference engine is controlled each light fixture by spi bus (6 pin) by Ethernet Cat5.When lines long more, need the LED light fixture of control to get over for a long time, the Ethernet line Cat5 that is connected to each data distributor and difference engine by main controller is just long more, the decay that signal transmits is just big more, thereby system's structure is complicated more, and it is higher to control cost, and line is many and long, project installation complexity, system reliability also reduce greatly.

From the above mentioned, how to improve existing LED light fixture, the monochrome information that makes the outside need not to import each LED lamp can show, so that the external control data of LED lamp are more succinct, become the technical task that those skilled in the art need to be resolved hurrily in fact.

The utility model content

The purpose of this utility model is to provide a kind of LED light fixture based on primary function mode, to realize the monochrome information that need not outside each LED lamp of input each LED lamp is shown.

Reach other purposes in order to achieve the above object, the LED light fixture that the utility model provides based on primary function mode, comprise: as a plurality of LED lamps of a plurality of pixels, be used to provide the control module of the colouring information of described a plurality of LED lamps, and be used for driving the LED lamp drive circuit that corresponding LED lamp shows respective color according to the colouring information that is provided, wherein, described control module comprises again: be respectively applied for the different basic function of storage, and each pixel colouring information of each basic function respectively with a plurality of one to one basic function memory cell of formed each pixel of described a plurality of LED lamps; Be used to store the address storaging unit of the actual address of light fixture self; Be used for resolving from the data resolution unit of the lighting effects data that include the basic function that is associated with described actual address of outside input according to described address storaging unit institute address stored; The basic function that is used for being parsed according to described data resolution unit extracts corresponding basic function from corresponding basic function memory cell, so that LED lamp drive unit drives drives the basic function extraction unit of described a plurality of LED lamp demonstration respective color according to the corresponding relation of each pixel colouring information in the basic function that is extracted and formed each pixel of described a plurality of LED lamps.

Preferable, described control module is a single-chip microcomputer.

In sum, LED light fixture based on primary function mode of the present utility model is by being provided with a plurality of basic function memory cell in control module, can drive each LED lamp and show according to the data that are associated with basic function of outside input, simplified the data of outside input.

Description of drawings

Fig. 1 is existing DMX system line style control system schematic diagram.

Fig. 2 is existing SPI system line style control system schematic diagram.

Fig. 3 is the LED light fixture basic structure schematic diagram based on primary function mode of the present utility model.

Fig. 4 a to 4c is the basic function schematic diagram of being stored based on each basic function memory cell of LED light fixture of primary function mode of the present utility model.

The specific embodiment

See also Fig. 3, the LED light fixture based on primary function mode of the present utility model comprises at least: a plurality of LED lamps, control module, and LED lamp drive circuit etc.

Described a plurality of LED lamp can be 24 LED lamps that can form 8 pixels, also can be a plurality of LED lamps that can form 16 pixels etc.In the present embodiment, employing can form 24 LED lamps of 8 pixels.

Described control module is used to provide the colouring information of described a plurality of LED lamps, and it can be single-chip microcomputer.And described control module can comprise: a plurality of basic function memory cell, address storaging unit, data resolution unit, and basic function extraction unit etc.

Described a plurality of basic function memory cell, be basic function memory cell 1, basic function memory cell 2 ..., basic function memory cell n, be respectively applied for the different basic function of storage, wherein, each basic function is made of the colouring information of a plurality of pixels, and each pixel colouring information of each basic function is corresponding one by one with formed each pixel of described a plurality of LED lamps respectively.For example, see also shown in Fig. 4 a to 4c, wherein, stored the basic function 1 shown in Fig. 4 a in the basic function memory cell 1, described basic function 1 comprises corresponding one by one 8 the red pixel points of 8 pixels that form with described 24 LED lamps, stored the basic function 2 shown in Fig. 4 b in the basic function memory cell 2, described basic function 2 comprises one by one corresponding red green 8 the alternate pixels of 8 pixels that form with described 24 LED lamps, basic function memory cell n has stored basic function 3, described basic function 3 comprises corresponding one by one 8 the red blue pixels of 8 pixels that form with described 24 LED lamps, shown in Fig. 4 c, be that the colouring information of each pixel can comprise tone usually with noting, saturation degree and brightness data.

Described address storaging unit is used to store the actual address of light fixture self, for example is 0000.

Described data resolution unit be used for according to described address storaging unit institute address stored resolve from the outside input with the corresponding lighting effects data of described actual address, therefrom to parse corresponding basic function.For example, include basic function 1 in outside input and the lighting effects data that address 0000 is associated.

Described basic function extraction unit is used for the basic function that parsed according to described data resolution unit and extracts corresponding basic function from corresponding basic function memory cell, so that LED lamp driver element drives described a plurality of LED lamp demonstration respective color according to the corresponding relation of each the pixel colouring information in the basic function that is extracted and formed each pixel of described a plurality of LED lamps.For example, described data basic function that resolution unit parses 1, then described basic function extraction unit extract basic function 1 in basic function memory cell 1; If described data basic function that resolution unit parses 2, then described basic function extraction unit extract basic function 2 in basic function memory cell 2; If described data basic function that resolution unit parses 3, then described basic function extraction unit extract basic function 3 in basic function memory cell n.

The colouring information that described LED lamp drive circuit is used for providing according to described control module drives corresponding LED lamp and shows respective color.For example, described basic function extraction unit extracts basic function 1 in basic function memory cell 1, it provides whole red information according to the colouring information of 8 pixels in the basic function 1 and the corresponding relation of 24 formed 8 pixels of LED lamp again, and described LED lamp drive circuit drives 24 formed 8 pixels of LED lamp and is shown as red color; If described basic function extraction unit extracts basic function 2 in basic function memory cell 2, it provides red green alternate colouring information according to the colouring information of 8 pixels in the basic function 2 and the corresponding relation of 24 formed 8 pixels of LED lamp again, and described LED lamp drive circuit drives 24 formed 8 pixels of LED lamp and is shown as red green alternate effect; If described basic function extraction unit extracts basic function 3 in basic function memory cell n, it provides red indigo plant alternate colouring information according to the colouring information of 8 pixels in the basic function 3 and the corresponding relation of 24 formed 8 pixels of LED lamp again, and described LED lamp drive circuit drives 24 formed 8 pixels of LED lamp and is shown as the alternate effect of red indigo plant.

In sum, LED light fixture based on primary function mode of the present utility model is by being provided with a plurality of basic function memory cell in single-chip microcomputer, only need thus to comprise the data relevant with basic function from the outside input, can make each LED lamp show corresponding lighting effects, avoided to import the colouring information of each pixel from the outside in the prior art and causing the too much shortcoming of information content, made external lights effect control data more succinct.

The foregoing description just lists expressivity principle of the present utility model and effect is described, but not is used to limit the utility model.Any personnel that are familiar with this technology all can make amendment to the foregoing description under spirit of the present utility model and scope.Therefore, rights protection scope of the present utility model should be listed as claims.

Claims

1. LED light fixture based on primary function mode, it is characterized in that comprising: as a plurality of LED lamps of a plurality of pixels, be used to provide described a plurality of LED lamps colouring information control module and be used for driving the LED lamp drive circuit that corresponding LED lamp shows respective color according to the colouring information that is provided, wherein, described control module comprises again:

A plurality of basic function memory cell, be respectively applied for the different basic function of storage, wherein, each basic function is made of the colouring information of a plurality of pixels, and each pixel colouring information of each basic function is corresponding one by one with formed each pixel of described a plurality of LED lamps respectively;

Address storaging unit, the actual address that is used to store light fixture self;

The data resolution unit is used for resolving from the lighting effects data that include the basic function that is associated with described actual address of outside input, therefrom to parse corresponding basic function according to described address storaging unit institute address stored;

The basic function extraction unit, be used for the basic function that parsed according to described data resolution unit and extract corresponding basic function, so that LED lamp driver element drives described a plurality of LED lamp demonstration respective color according to the corresponding relation of each the pixel colouring information in the basic function that is extracted and formed each pixel of described a plurality of LED lamps from corresponding basic function memory cell.

2. the LED light fixture based on primary function mode as claimed in claim 1 is characterized in that: described control module is a single-chip microcomputer.