Pixel lamp mode management circuit

Abstract

The utility model relates to a pixel lamp mode management circuit, which comprises a main control unit and a plurality of driving units, the driving unit drives any one or more light emitting diodes to work to form a small pixel point; the pixel control unit controls the working modes of the plurality of driving units through the main control unit, the working modes are used for controlling the pixel sizes of small pixel points, for example, four light-emitting diodes form one pixel point or sixteen light-emitting diodes form one pixel point, and the working modes at least comprise a first pixel mode and a second pixel mode; the pixel sizes of the first pixel mode and the second pixel mode are different; the plurality of light-emitting diodes are arranged on the same surface of a circuit board in a rectangular array and are close to each other; therefore, the working mode of the pixel lamp is controlled through the pixel control unit in a physical mode, the size of the pixel point is adjusted so as to adapt to the use requirements of different distances / scenes, and the circuit is simple, low in cost and small in size.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pixel lamp pixel control circuit, more particularly to a pixel lamp mode management circuit. BACKGROUND

[0002] When the pixel lamp for light show is used on high-rise buildings, one pixel lamp can be set as one pixel point; when used on high-rise buildings, one pixel lamp can be set as several pixel points; when used indoors, one pixel lamp needs to be set as more pixel points; to adapt to different scenes, improve the viewing and clarity;

[0003] However, the existing pixel lamp sets the specific pixel mode when leaving the factory, and the firmware needs to be modified when different pixel modes are used, which is not conducive to factory inventory and user use, and the user often needs to return to the factory to reflash the firmware of different pixel modes. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem, in view of the above-mentioned defects of prior art, provide a kind of pixel lamp mode management circuit, and circuit is simple, cost is low, and the volume is small.

[0005] The utility model solves the technical problems employing the technical scheme that:

[0006] A kind of pixel lamp mode management circuit is constructed, including main control unit and multiple drive units;Wherein, the drive unit drives the working of any one or more light emitting diodes and constitutes a small pixel point;

[0007] The main control unit is connected with multiple drive units, and the drive unit is connected with multiple light emitting diodes, and the main control unit is also connected with pixel control unit;

[0008] The pixel control unit controls the working mode of multiple drive units by the main control unit, and the working mode controls the pixel size of the small pixel point, and the working mode at least includes: first pixel mode and second pixel mode, and the pixel size of the first pixel mode and the second pixel mode is different;

[0009] Multiple light emitting diodes are installed on the same face of a circuit board and close to each other in a rectangular array.

[0010] The pixel lamp mode management circuit, wherein the main control unit also controls the working of multiple drive units and constitutes a large pixel point.

[0011] The pixel lamp mode management circuit, wherein the drive unit is a plurality of LED driving chips or a plurality of analog multiplexer chips.

[0012] The pixel lamp mode management circuit, wherein the main control unit is a microcontroller.

[0013] The pixel lamp mode management circuit, wherein the pixel control unit is a single-pole multi-throw switch or a resistor with different resistance values.

[0014] The pixel lamp mode management circuit, wherein the pixel control unit comprises a single-pole three-throw switch, a first resistor, a second resistor, a third resistor and a fourth resistor.

[0015] The common end of the single-pole three-throw switch is connected with the positive pole of a power supply and the first end is connected with the first resistor, the second end of the single-pole three-throw switch is connected with the second resistor and the third end is connected with the third resistor, the other end of the first resistor, the other end of the second resistor and the other end of the third resistor are all connected with the fourth resistor and an analog-digital conversion port of the microcontroller, and the other end of the fourth resistor is grounded.

[0016] The resistance values of the first resistor, the second resistor and the third resistor are all different.

[0017] The pixel lamp mode management circuit, wherein the pixel control unit further comprises a capacitor.

[0018] The capacitor is connected with the common end of the single-pole three-throw switch and the other end is connected with the fourth resistor.

[0019] The pixel lamp mode management circuit, wherein the model of the LED driving chip is VK1651, and the model of the analog multiplexer chip is CD4053B.

[0020] The pixel lamp mode management circuit, wherein the model of the microcontroller is STC12C2052AD.

[0021] The pixel lamp mode management circuit, wherein the driving unit drives any multiple of the light emitting diodes in series or in parallel to form the small pixel point.

[0022] The pixel lamp mode management circuit has the advantages that the driving units drive the working of any one or more light emitting diodes to form a small pixel point; the pixel control unit controls the working mode of the plurality of driving units through the master control unit, the working mode is to control the pixel size of the small pixel point, for example, four light emitting diodes form a pixel point or sixteen light emitting diodes form a pixel point, the working mode at least includes a first pixel mode and a second pixel mode, the pixel sizes of the first pixel mode and the second pixel mode are different; the plurality of light emitting diodes are installed on the same surface of a circuit board in a rectangular array and are close to each other; thereby the working mode of the pixel lamp is controlled in a physical mode through the pixel control unit, the size of the pixel point is adjusted to adapt to the use requirement of different distances / scenes, and the circuit is simple, the cost is low, and the volume is small. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the premise of the drawings:

[0024] Figure 1 is a circuit block diagram of the pixel lamp mode management circuit of the preferred embodiment of the present application;

[0025] Figure 2 is a circuit principle diagram of the pixel control unit of the pixel lamp mode management circuit of the preferred embodiment of the present application;

[0026] Figure 3 is a display schematic diagram of different pixel modes of the pixel lamp mode management circuit of the preferred embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0028] The pixel lamp mode management circuit of the preferred embodiment of the present application is as shown in Figure 1 , and reference is made to Figures 2-3 ; including a master control unit 100 and a plurality of driving units 110; one of the plurality of driving units 110 drives the working of any one or more light emitting diodes 111 to form a small pixel point;

[0029] The master control unit 100 is connected with a plurality of driving units 110, the driving units 110 are connected with a plurality of light emitting diodes 111, and the master control unit 100 is also connected with a pixel control unit 200;

[0030] The pixel control unit 200 controls the working mode of the plurality of driving units 110 through the master control unit 100, the working mode is to control the pixel size of a small pixel point, and the working mode at least includes a first pixel mode and a second pixel mode, and the pixel sizes of the first pixel mode and the second pixel mode are different.

[0031] The plurality of light emitting diodes 111 are installed in a rectangular array on the same surface of a circuit (not shown in the figure) board and are close to each other.

[0032] The driving unit 110 drives any one or more light emitting diodes 111 to form a small pixel point; the pixel control unit 200 controls the working mode of the plurality of driving units 110 through the master control unit 100, the working mode is to control the pixel size of a small pixel point, for example, four light emitting diodes 111 form a pixel point or sixteen light emitting diodes 111 form a pixel point, and the working mode at least includes a first pixel mode and a second pixel mode, and the pixel sizes of the first pixel mode and the second pixel mode are different; the plurality of light emitting diodes 111 are installed in a rectangular array on the same surface of a circuit board and are close to each other; thereby realizing the use of a physical mode to control the working mode of the pixel lamp by the pixel control unit 200, adjusting the size of the pixel point to adapt to the use requirements of different distances / scenes, and the circuit is simple, the cost is low, and the volume is small.

[0033] As shown in Figure 1 and Figure 3 , the master control unit 100 also controls the working of the plurality of driving units 110 to form a large pixel point; that is, more light emitting diodes 111 form a pixel point, which is suitable for high-rise buildings or high-rise use.

[0034] As shown in Figure 1 , the driving unit 110 is a plurality of LED driving chips (not shown in the figure) or a plurality of analog multiplexer chips (not shown in the figure); for example, when the LED driving chip is used, a plurality of light emitting diodes 111 use a parallel power supply mode, and when the analog multiplexer chip is used, a plurality of light emitting diodes 111 use a series power supply mode, which improves the power input voltage and reduces the power loss, and meets different use requirements.

[0035] As shown in Figure 1 , the master control unit 100 is a microcontroller UD1; the cost is low, and it is convenient to communicate with the LED driving chip or the multiplexer chip.

[0036] As shown in Figure 1 and Figure 2As shown, the pixel control unit 200 can be a single-pole multi-throw switch (not shown in the figure) or a resistor of different resistance values ​​(not shown in the figure) to meet different usage requirements.

[0037] like Figure 1 and Figure 2 As shown, the pixel control unit 200 includes: a single-pole three-throw switch K1 (or a DIP switch) and a first resistor RS1, a second resistor RS2 and a third resistor RS3 and a fourth resistor RS4.

[0038] The common terminal of the single-pole three-throw switch K1 is connected to the positive terminal of the power supply and the first terminal is connected to the first resistor RS1. The second terminal of the single-pole three-throw switch K1 is connected to the second resistor RS2 and the third terminal is connected to the third resistor RS3. The other terminals of the first resistor RS1, the second resistor RS2, and the third resistor RS3 are all connected to the fourth resistor RS4 and the analog-to-digital conversion port of the microcontroller UD1. The other terminal of the fourth resistor RS4 is grounded.

[0039] The resistance values ​​of the first resistor RS1, the second resistor RS2, and the third resistor RS3 are all different; the circuit is simple, low in cost, and easy to use.

[0040] like Figure 1 and Figure 2 As shown, the pixel control unit 200 also includes: a capacitor (not shown in the figure);

[0041] The capacitor is connected to the common terminal of the single-pole triple-throw switch K1, and the other end is connected to the fourth resistor RS4; for filtering.

[0042] like Figure 1 As shown, the LED driver chip is model VK1651, and the analog multiplexer chip is model CD4053B; both are low in cost and small in size.

[0043] like Figure 1 As shown, the microcontroller UD1, model STC12C2052AD, is small in size and low in cost.

[0044] like Figure 1 As shown, the driving unit 110 drives any number of light-emitting diodes 111 connected in series or in parallel to form small pixels. This is achieved through multiple analog multiplexer chips to improve the input voltage and meet different usage requirements.

[0045] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A pixel lamp mode management circuit, comprising a main control unit and multiple driving units; characterized in that, The driving unit drives the operation of any one or more light-emitting diodes to form a small pixel. The main control unit is connected to multiple driving units, the driving units are connected to multiple light-emitting diodes, and the main control unit is also connected to a pixel control unit; The pixel control unit controls the working modes of multiple driving units through the main control unit. The working mode controls the pixel size of the small pixel. The working mode includes at least a first pixel mode and a second pixel mode, wherein the pixel size of the first pixel mode and the second pixel mode are different. Multiple light-emitting diodes are mounted in a rectangular array on the same side of a circuit board and are close to each other.

2. The pixel lamp mode management circuit according to claim 1, characterized in that, The main control unit also controls the operation of multiple drive units to form a large pixel.

3. The pixel lamp mode management circuit according to claim 1, characterized in that, The driving unit is a plurality of LED driver chips or a plurality of analog multiplexer chips.

4. The pixel lamp mode management circuit according to claim 1, characterized in that, The main control unit is a microcontroller.

5. The pixel lamp mode management circuit according to claim 4, characterized in that, The pixel control unit is a single-pole multi-throw switch or a resistor with different resistance values.

6. The pixel lamp mode management circuit according to claim 5, characterized in that, The pixel control unit includes: a single-pole triple-throw switch and a first resistor, a second resistor, a third resistor, and a fourth resistor; The common terminal of the single-pole three-throw switch is connected to the positive terminal of the power supply and the first terminal is connected to the first resistor. The second terminal of the single-pole three-throw switch is connected to the second resistor and the third terminal is connected to the third resistor. The other ends of the first resistor, the second resistor, and the third resistor are all connected to the fourth resistor and the analog-to-digital conversion port of the microcontroller. The other end of the fourth resistor is grounded. The resistance values ​​of the first resistor, the second resistor, and the third resistor are all different.

7. The pixel lamp mode management circuit according to claim 6, characterized in that, The pixel control unit also includes: a capacitor; The capacitor is connected to the common terminal of the single-pole triple-throw switch, and its other end is connected to the fourth resistor.

8. The pixel lamp mode management circuit according to claim 3, characterized in that, The LED driver chip is model VK1651, and the analog multiplexer chip is model CD4053B.

9. The pixel lamp mode management circuit according to claim 4, characterized in that, The microcontroller is model STC12C2052AD.

10. The pixel lamp mode management circuit according to claim 8, characterized in that, The driving unit drives any number of light-emitting diodes to be connected in series or in parallel to form the small pixel.

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