CN201435853Y

CN201435853Y - Data supplier for providing control data for lamp based on primary function mode

Info

Publication number: CN201435853Y
Application number: CN2009200575056U
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: 2009-05-31
Filing date: 2009-05-31
Publication date: 2010-03-31
Anticipated expiration: 2019-05-31

Abstract

The utility model provides a data supplier for providing control data for a lamp based on a primary function mode. The data supplier comprises a bus interface circuit, a memory card interface circuitand a data processor; the bus interface circuit is provided with a bus interface, and is used to receive and transmit data via a bus; the memory card interface circuit is provided with a memory card interface, and is used to read the primary function-related data contained in a connected memory card; the data processor is used to convert the primary function-related data read by the memory card interface circuit into a format identified by the lamp based on the primary function mode and send the format-converted data to the bus interface circuit, so that the data can be transmitted to the lampbased on the primary function mode, consequently, the lamp based on the primary function mode can start up a corresponding primary function, each LED lamp of the lamp based on the primary function mode can then display a corresponding lighting effect, and thereby the data supplier implements the function of providing control data for the lamp.

Description

The data supply device of control data is provided to the light fixture based on primary function mode

Technical field

The utility model relates to a kind of data supply device, particularly a kind of data supply device that control data is provided to the 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, useful 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, and data are delivered to respectively respectively 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 series system.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 170 pixels of the maximum may command of each controller output port of standard DMX512 system, many producers also become standard DMX512 system extension the DMX1024 system makes 340 pixels of system's may command, 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.

In order to control more light fixture, the research staff develops a kind of light fixture based on primary function mode, its structure as shown in Figure 1, it comprises: a plurality of LED lamps, control module, and the LED lamp drive circuit etc. that can form a plurality of pixels.Wherein, described control module comprises again: a plurality of basic function memory cell, address storaging unit, data parsing unit, and basic function extraction unit, in each basic function memory cell, store a basic function respectively, as at the basic function of storage shown in Fig. 2 a in the basic function memory cell, promptly having stored formed each the pixel color of described a plurality of LED lamp all be the information of redness; The information that to have stored the formed pixel color of described a plurality of LED lamp in the basic function memory cell 2 be the alternate color of red indigo plant ...After the data parsing unit receives data from bus, after will the data extract relevant from the data that receive going out according to address storaging unit provided self address, therefrom parse corresponding basic function with self address.The basic function extraction unit extracts each pixel colouring information so that the described a plurality of LED lamps of LED lamp drive unit drives show corresponding lighting effects according to the basic function that described data parsing unit is parsed from corresponding basic function memory cell.

From the above mentioned, in order to adapt to the novel demand of this kind, now be badly in need of a kind of data supply device that control data can be provided for this kind Novel LED lamp based on the LED light fixture of primary function mode.

The utility model content

The purpose of this utility model is to provide a kind of data supply device that control data is provided to the light fixture based on primary function mode.

Reach other purposes in order to achieve the above object, the light fixture to based on primary function mode that the utility model provides provides the data supply device of control data, comprising: have bus interface and be used for bus interface circuit by the bus transceive data; Have memory card interface and be used to read the memory card interface circuit of the data relevant that comprised in the storage card of access with basic function; And, be used for the data relevant with basic function that described memory card interface circuit is read are converted to the form that can discern based on the light fixture of primary function mode, and will deliver to described bus interface circuit through the data of format conversion, so that can be delivered to light fixture based on primary function mode, make described light fixture can start corresponding basic function, and then make each LED lamp of described light fixture based on primary function mode show the data processor of corresponding lighting effects based on primary function mode.

Preferable, described bus interface can be the RS485 bus interface; Described memory card interface can be the SD card; Described data processor can be microprocessor.

In addition, describedly provide the data supply device of control data also can comprise: to have display interface device and the display interface device circuit of the display that the data-driven that is used for providing according to described data processor inserts and have keyboard interface and be used to receive the data that the keyboard of access is imported, and the data of being imported are sent into the keyboard interface circuit that described data processor is handled to light fixture based on primary function mode; Wherein, described display can be LCD.

In sum, the data supply device that control data is provided to the light fixture based on primary function mode of the present utility model be by will being converted to the form that can discern based on the light fixture of primary function mode from the data that comprise basic function of storage card, thereby can realize providing to light fixture the function of control data.

Description of drawings

Fig. 1 is for having the structural representation based on the LED light fixture of primary function mode now.

The basic function schematic diagram that Fig. 2 a-2b is stored for the basic function memory cell of existing LED light fixture based on primary function mode.

Fig. 3 is the data supply device structural representation that control data is provided to the light fixture based on primary function mode of the present utility model.

Embodiment

See also Fig. 3, of the present utility modelly provide the data supply device of control data to comprise at least: memory card interface circuit, keyboard interface circuit, bus interface circuit, display interface device circuit, and data processor etc. to light fixture based on primary function mode.

Described memory card interface circuit has memory card interface, is used to read the data relevant with basic function that comprised in the storage card of access.When the storage card that is inserted was the SD card, described memory card interface was the SD card; And when working as the storage card that inserted for other storage card (for example micro SD card), described memory card interface is corresponding card.

Described keyboard interface circuit has keyboard interface, is used to receive the data that the keyboard of access is imported, and the data of being imported is sent into described data processor handle.The keyboard that is inserted can be QWERTY keyboard, and corresponding keyboard interface is the keyboard interface of standard.

Described bus interface circuit has bus interface, is used for by the bus transceive data, and the bus of employing can be the RS485 bus, and the respective bus interface is the RS485 bus interface.

Described display interface device circuit has display interface device, the display that the data-driven that is used for providing according to described data processor inserts, and the display that is inserted can be LCD etc.

Described data processor is used for the data relevant with basic function that described memory card interface circuit is read are converted to the form that light fixture based on the primary function mode data parsing unit of the light fixture of primary function mode (promptly based on) can be discerned, and will deliver to described bus interface circuit through the data of format conversion, so that can be delivered to light fixture based on primary function mode, make described light fixture can start corresponding basic function, and then make each LED lamp of described light fixture based on primary function mode show corresponding lighting effects based on primary function mode.For example, data format such as the following table one that is adopted based on the data parsing unit of the light fixture of primary function mode:

Table one:

The address	The basic function numbering	Check digit
The address	The basic function numbering	Check digit	2 bytes	2 bytes	1 byte

Accordingly, the data relevant with basic function that described data processor is read described memory card interface circuit are converted to form as shown in Table 1, and it is sent into described bus interface circuit, so that be delivered to data parsing unit based on the LED light fixture of primary function mode by bus.In addition, described data processor also is used to handle the data from the keyboard interface circuit input, and it can be microprocessor.

It is noted that, above-mentioned each interface circuit, and the internal structure of data processor all be familiar with by those skilled in the art, so be not described in detail in this.

In sum, the data supply device of control data that provides to the light fixture based on primary function mode of the present utility model is converted to the form that can discern based on the light fixture of primary function mode by the data that the SD card is provided, thereby can realize providing to the light fixture based on primary function mode the function of control data.

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. one kind provides the data supply device of control data to the light fixture based on primary function mode, it is characterized in that comprising:

Have bus interface and be used for bus interface circuit by the bus transceive data;

Have memory card interface and be used to read the memory card interface circuit of the data relevant that comprised in the storage card of access with basic function;

Be used for the data relevant with basic function that described memory card interface circuit is read are converted to the form that can discern based on the light fixture of primary function mode, and will deliver to described bus interface circuit through the data of format conversion, so that can be delivered to light fixture based on primary function mode, make described light fixture can start corresponding basic function, and then make each LED lamp of described light fixture based on primary function mode show the data processor of corresponding lighting effects based on primary function mode.

2. as claimed in claim 1ly provide the data supply device of control data to the light fixture based on primary function mode, it is characterized in that: described bus interface is the RS485 bus interface.

3. as claimed in claim 1ly provide the data supply device of control data to the light fixture based on primary function mode, it is characterized in that: described memory card interface is the SD card.

4. as claimed in claim 1ly provide the data supply device of control data to the light fixture based on primary function mode, it is characterized in that: described data processor is a microprocessor.

5. as claimed in claim 1ly provide the data supply device of control data, it is characterized in that also comprising: have display interface device and the display interface device circuit of the display that the data-driven that is used for providing according to described data processor inserts to light fixture based on primary function mode.

6. as claimed in claim 5ly provide the data supply device of control data to the light fixture based on primary function mode, it is characterized in that: described display is a LCD.

7. the data supply device that control data is provided to the light fixture based on primary function mode as claimed in claim 1, it is characterized in that also comprising: have keyboard interface and be used to receive the data that the keyboard of access is imported, and the data of being imported are sent into the keyboard interface circuit that described data processor is handled.