CN201434324Y - LED lamps based on basis function model - Google Patents

Abstract

The LED lamp based on the basis function mode of the utility model includes: a plurality of LED lamps as a plurality of pixel points, a control module for providing color information of a plurality of LED lamps, and a control module for driving corresponding LED lamps according to the provided color information The LED lights display the LED lights driving circuit of the corresponding color, wherein the control module further includes: respectively used to store different basis functions and the color information of each pixel point of each basis function is respectively related to each pixel point formed by a plurality of LED lights One-to-one correspondence with multiple base function storage units; the address storage unit used to store the address of the lamp; the data analysis unit used to analyze the light effect data input from the outside according to the stored address to obtain the base function; The analyzed basis functions are extracted from corresponding basis function storage units, so that the LED lamp driving unit drives a basis function extraction unit that drives multiple LED lamps according to the color information of each pixel in the provided basis functions.

Description

LED lamps based on basis function model

technical field

The utility model relates to an LED lamp, in particular to an LED lamp based on a basis function mode.

Background technique

At present, LEDs used in the field of lighting are superior to traditional lighting in terms of luminous efficiency, environmental protection and power saving, rich lighting tones and colors, service life, shock resistance and impact resistance. Although LED lighting still has the problems of high cost and system efficiency to be improved, as the bottleneck of LED technology is overcome, the market scale of LED lighting applications will continue to grow rapidly, and the application of LEDs in architectural lighting is the most anticipated. In architectural landscape lighting, LEDs are mainly used in architectural decoration, interior decoration, tourist attraction decoration, etc. Advertising as one of the commercial lighting.

At present, the mainstream control protocol in the LED lighting control industry is the DMX512 control protocol. The DMX512 protocol was originally designed for stage lighting control, and it uses the RS-485 industrial bus as the physical layer. Usually a lighting effect can be divided into multiple screens, and each screen is called a frame. In the DMX512 protocol, a frame of data contains up to 512 bytes, and a pixel is 3 bytes (red, green, blue). Therefore, DMX512 can only support about 170 pixels; if the screen is too large, the master controller needs to send the data to each slave controller in units of 512 bytes, as shown in Figure 1, the master controller transmits data to each slave controller through Ethernet The Cat5 or RS485 bus sends the dimming brightness data of each frame to each slave controller, and each slave controller is connected to each lamp through the RS485 bus (3 wires). Due to the simplicity and practicability of the DMX512 protocol, as well as the stability and reliability of the RS-485 bus, the DMX512 protocol has been widely used in the field of LED lighting control.

However, since the transmission rate of the RS-485 bus is 250Kbps, it is difficult to independently construct a large-scale lighting system and apply it to urban landscape lighting such as building exterior walls. Therefore, most domestic LED lighting control systems used in building exterior walls use SPI bus transmission control mode , among which, represented by the products of Beijing Zhongqing Micro Digital Equipment Development Co., Ltd., has occupied most of the market share in this field. Using the SPI bus transmission method can realize large-scale exterior wall display control. Compared with the DMX512 system, its control cost is lower, but its stability is worse than that of the DMX system. In the SPI series system, if one LED lamp is damaged, it will cause damage to the following LED lights. The problem with the light fixtures not working. Therefore, at present, almost all small and medium-sized LED systems in the domestic LED lighting control field are DMX512 systems, and large-scale LED systems (above 5K pixels) mostly use SPI bus systems.

However, both the current DMX512 system and the SPI system are graphic animation systems, and are mostly used in graphic applications such as building exterior walls. For linear applications such as roads, bridges, and riversides, it is difficult to implement with the existing DMX system and SPI system. Because each controller output port of the standard DMX512 system can control up to 170 pixels, many manufacturers also expand the standard DMX512 system into a DMX1024 system so that the system can control 340 pixels, but the cost is to reduce the maximum refresh rate of the system from 44Hz to 22Hz; and the control capability of each output port of the SPI bus system can only reach 256 pixels. Because the existing DMX system and SPI system can control not many pixels, when it is applied to the control of linear LED lights such as roads and bridges, multiple data distributors or slave controllers are required to form a linear system. Please refer to Figure 2, which is a schematic diagram of the linear control effect of the existing SPI system. The main controller first sends data to each data distributor through Ethernet Cat5, and then the data distributor sends the data to the corresponding differentiators. Each differentiator controls each lamp through the SPI bus (6 pins). When the line is longer and there are more LED lamps to be controlled, the longer the Cat5 Ethernet cable connected from the main controller to each data distributor and differential, the greater the attenuation of signal transmission, and thus the more complex the system structure. The control cost is high, the connection is many and long, the engineering installation is complicated, and the system reliability is also greatly reduced.

From the above, how to improve the existing LED lamps so that they can be displayed externally without inputting the brightness information of each LED lamp, so as to make the external control data of the LED lamps more concise, has become an urgent problem to be solved by those skilled in the art. technical issues.

Utility model content

The purpose of the present utility model is to provide an LED lamp based on the basis function mode, so that each LED lamp can be displayed without externally inputting brightness information of each LED lamp.

In order to achieve the above purpose and other purposes, the LED lamp based on the basis function mode provided by the utility model includes: a plurality of LED lamps as a plurality of pixel points, a control module for providing color information of the plurality of LED lamps, and an LED lamp driving circuit for driving corresponding LED lamps to display corresponding colors according to the provided color information, wherein the control module further includes: respectively storing different basis functions, and each pixel point of each basis function A plurality of base function storage units with color information corresponding to each pixel point formed by the plurality of LED lamps; an address storage unit for storing the actual address of the lamp itself; The address analysis is a data analysis unit that contains the light effect data of the base function associated with the actual address input from the outside; it is used to extract the base function from the corresponding base function storage unit according to the base function analyzed by the data analysis unit Corresponding basis functions, so that the LED lamp driving unit can drive the plurality of LED lamps to display corresponding Color basis function extraction unit.

Preferably, the control module is a single-chip microcomputer.

In summary, the LED lamp based on the basis function mode of the present utility model can drive each LED lamp to display according to the data associated with the basis function input externally by setting a plurality of basis function storage units in the control module, simplifying the externally input data.

Description of drawings

Fig. 1 is a schematic diagram of the linear control system of the existing DMX system.

Fig. 2 is a schematic diagram of the linear control system of the existing SPI system.

Fig. 3 is a schematic diagram of the basic structure of the LED lamp based on the basis function mode of the present invention.

4a to 4c are schematic diagrams of basis functions stored in each basis function storage unit of the LED lamp based on the basis function mode of the present invention.

Detailed ways

Please refer to FIG. 3 , the LED lamp based on the basis function mode of the present invention at least includes: a plurality of LED lamps, a control module, and an LED lamp driving circuit.

The plurality of LED lamps may be 24 LED lamps capable of forming 8 pixels, or may be multiple LED lamps capable of forming 16 pixels. In this embodiment, 24 LED lamps capable of forming 8 pixel points are used.

The control module is used to provide color information of the plurality of LED lamps, which may be a single-chip microcomputer. And the control module may include: a plurality of basis function storage units, an address storage unit, a data analysis unit, a basis function extraction unit, and the like.

The plurality of basis function storage units, i.e. basis function storage unit 1, basis function storage unit 2, ..., basis function storage unit n, are respectively used to store different basis functions, wherein each basis function consists of a plurality of pixels The color information of the points is formed, and the color information of each pixel point of each basis function corresponds to each pixel point formed by the plurality of LED lamps respectively. For example, please refer to FIGS. 4a to 4c, wherein the basis function 1 shown in FIG. A corresponding 8 red pixels, the basis function 2 shown in Figure 4b is stored in the basis function storage unit 2, and the basis function 2 includes one by one corresponding to the 8 pixels formed by the 24 LED lamps The red and green 8 pixel points, ..., the basis function storage unit n stores the basis function 3, and the basis function 3 includes 8 corresponding to the 8 pixel points formed by the 24 LED lamps one by one. Red and blue pixels, as shown in FIG. 4c, it should be noted that the color information of each pixel usually includes hue, saturation and brightness data.

The address storage unit is used to store the actual address of the lamp itself, such as 0000.

The data parsing unit is used for parsing the light effect data corresponding to the actual address input from the outside according to the address stored in the address storage unit, so as to parse out the corresponding basis function therefrom. For example, the externally input lighting effect data associated with address 0000 includes basis function 1.

The basis function extraction unit is used to extract the corresponding basis function from the corresponding basis function storage unit according to the basis function analyzed by the data analysis unit, so that the LED lamp driving unit can The corresponding relationship between the color information and each pixel formed by the plurality of LED lamps drives the plurality of LED lamps to display corresponding colors. For example, if the base function 1 is analyzed by the data analysis unit, then the base function extraction unit extracts the base function 1 from the base function storage unit 1; if the base function 2 is analyzed by the data analysis unit, then the base function The function extracting unit extracts the base function 2 from the base function storage unit 2; if the base function 3 is analyzed by the data analyzing unit, the base function extracting unit extracts the base function 3 from the base function storage unit n.

The LED lamp driving circuit is used for driving corresponding LED lamps to display corresponding colors according to the color information provided by the control module. For example, the base function extraction unit extracts the base function 1 from the base function storage unit 1, and then according to the corresponding relationship between the color information of the 8 pixels in the base function 1 and the 8 pixels formed by 24 LED lamps All red information is provided, and the 8 pixel points formed by the LED lamp drive circuit driving 24 LED lamps are displayed in red color; if the base function extraction unit extracts the base function 2 from the base function storage unit 2, it then The correspondence between the color information of the 8 pixel points in the basis function 2 and the 8 pixel points formed by 24 LED lamps provides red and green color information, and the LED lamp driving circuit drives the 8 pixel points formed by 24 LED lamps. pixels are displayed as red and green; if the base function extraction unit extracts the base function 3 from the base function storage unit n, it then uses the color information of 8 pixels in the base function 3 and 24 LED lamps The formed corresponding relation of 8 pixel points provides the color information of alternate red and blue, and the 8 pixel points formed by driving 24 LED lamps by the LED light driving circuit display the effect of alternating red and blue.

In summary, the LED lamp based on the basis function mode of the present utility model sets a plurality of basis function storage units in the single-chip microcomputer, so that only the data related to the basis function needs to be input from the outside, and each LED light can display The corresponding lighting effect avoids the disadvantages of the prior art that the color information of each pixel needs to be input from the outside, resulting in too much information, and makes the external lighting effect control data more concise.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Any person familiar with this technology can modify the above-mentioned embodiments without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the utility model should be as listed in the claims.

Claims (2)

1. A LED lamp based on basis function mode, characterized in that it comprises: a plurality of LED lamps as a plurality of pixel points, a control module for providing color information of the plurality of LED lamps, and a control module for providing color information according to the provided The color information drives the corresponding LED light to display the LED light driving circuit of the corresponding color, wherein the control module further includes: A plurality of basis function storage units are respectively used to store different basis functions, wherein each basis function is composed of color information of a plurality of pixels, and the color information of each pixel of each basis function is respectively related to the plurality of LEDs Each pixel formed by the lamp corresponds to one by one; The address storage unit is used to store the actual address of the lamp itself; A data parsing unit, configured to parse the externally input lighting effect data containing the basis function associated with the actual address according to the address stored in the address storage unit, so as to parse out the corresponding basis function; The basis function extraction unit is used to extract the corresponding basis function from the corresponding basis function storage unit according to the basis function analyzed by the data analysis unit, so that the LED lamp driving unit The corresponding relationship between information and each pixel formed by the plurality of LED lamps drives the plurality of LED lamps to display corresponding colors. 2. The LED lamp based on the basis function mode according to claim 1, wherein the control module is a single-chip microcomputer.

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