Multi-channel synchronous real-time dynamic music full-color atmosphere lighting device

Abstract

The utility model relates to the field of lighting devices, in particular to a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device. The lighting device comprises a communication unit, an output expansion unit and a lighting control unit, and the communication unit comprises a wireless radio frequency unit, a programmable micro-processing unit, a Fourier series transformation unit and a memory unit which are integrated in the same chip; the communication unit firstly controls the internal Fourier series transformation unit and the memory unit according to the received signal, and then controls the external output expansion unit and the light-emitting control unit, so that the lighting device and music can synchronously and dynamically change in real time; the lighting device has a music spectrum lamp effect, free mapping established at an output port of the communication unit, and a DMA data transmission function. And the output expansion units adopt a circuit structure that the output expansion units are connected in parallel and then connected in series, matrix expansion can be realized, and 32 output expansion units can be expanded in the transverse direction and 128 output expansion units can be expanded in the longitudinal direction. A plurality of groups of switches are arranged, and the use environment can be selected circularly according to the switches to control unit area display through specific light emission.

Description

Technical Field

[0001] The utility model relates to the field of lighting devices, and specifically to a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device; Background Art

[0002] The use of matrix LED as lighting device has become very popular. It has the advantages of saving electricity and being more comfortable than light bulbs. However, the old style has two problems: one is the complicated wiring; the other is the monotonous change. The utility model adopts WS2812B-4020 intelligent external control integrated LED light source. It uses serial transmission technology to simplify the wiring, can be directly connected in parallel, can be densely arranged in parallel and simplify the circuit. A communication unit is added, which contains a Fourier series transformation unit, which can change the color according to the frequency signal received by the wireless radio frequency unit. Make the change vivid and interesting. The light control unit has eight red control bits, eight blue control bits and eight green control bits, and can display full color. Solve the two major problems of the old matrix LED as lighting device. Utility Model Content

[0003] The utility model is a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device, which includes a communication unit, an output expansion unit and a light control unit, wherein the communication unit includes a wireless radio frequency unit, a programmable microprocessor unit, a Fourier series transform unit and a memory unit, which are integrated inside the same chip; the communication unit first controls the internal Fourier series transform unit and the memory unit according to the received signal, and then controls the external output expansion unit and the light control unit, so that the lighting device can change dynamically in real time in synchronization with the music; the lighting device has the effect of a music spectrum lamp, is based on the free mapping of the output port of the communication unit, and the DMA data sending function, and adopts a circuit structure of first parallel connection and then series connection.

[0004] One of them is an output expansion unit, which adopts a circuit structure of first parallel connection and then series connection, and can be expanded in matrix mode, with 8-128 units vertically and 8-32 units horizontally.

[0005] Two of them are Fourier series transform units. The communication unit can change color according to the frequency signal received by the wireless radio unit. The light control unit has serial transmission function, which can be densely arranged in parallel and simplify the circuit. Each light control unit has eight red control bits, eight blue control bits and eight green control bits, and can display full color. The duty cycle is high as bit one, the duty cycle is low as bit zero, and the continuous low bit greater than 280 microseconds is a reset signal.

[0006] Three of them are communication units, which have multiple sets of switches that can correspond to one or more usage environments. The signal processing in each key coding device can select the usage environment according to the switch cycle. The selection mode is displayed in a specific light-emitting control unit area. The programmable microprocessor unit and memory unit inside the communication unit can be automatically or manually updated wirelessly with the background. Each key coding device.

[0007] Among them, the preferred solution is that the existing music spectrum lamp uses traditional LED lamp beads for display, and the color saturation, brightness and brightness change simply; the driving circuit is complex, the production and processing are difficult, and the cost is high; it is restricted by the hardware circuit, the control software architecture is complex, the content and mode of the lighting effect are simple, the upgrade and expansion are inconvenient, and the use scenarios are limited; it uses a serial data drive method, the real-time performance is low, and the data refresh time is very long; the utility model utilizes the powerful IO port free mapping capability of the Bluetooth chip and the powerful DMA technology and powerful computing power, combined with a simple and effective driving circuit, to express the sound in real time and efficiently as a sound signal in real time and dynamically and synchronously.

[0008] Among them, the preferred solution is that in this full-color RGBIC atmosphere lamp, 74HC245 is used as the control chip of DMA multi-channel synchronous parallel mode to drive WS2811 / SM16703 / 1903 and other serial timing modes;

[0009] This music spectrum lamp is based on the IO port free mapping and DMA data transmission functions on the Bluetooth chip, and adopts a circuit structure that is first connected in parallel and then in series;

[0010] The preferred solution is that the output expansion unit (20) adopts a circuit structure of first parallel connection and then series connection, which can be expanded in a matrix type, with 8-128 in the vertical direction and 8-32 in the horizontal direction. It can be divided into zones to form advertisements or scrolling lights.

[0011] The preferred solution is that before driving the LED, the Bluetooth chip is initialized first, the IO is set as the data port for driving the LED lamp, it is connected to the input port of the logic driver chip, and the logic voltage 3.3V signal is converted into a 4.4V~5V signal, so that it can safely drive the LED lamp beads;

[0012] The preferred solution is to set the IO free image polling mode in the DMA inside the Bluetooth chip, and each IO port sends a serial data signal, and achieves the mode of parallel first and then serial through the free image mode;

[0013] The preferred solution is to use the FFT function in the chip to perform Fourier series transformation on the data, convert the analog signal in the audio signal into M*N matrix modularization, and digitize the analog signal, which is expressed as a light display for visualization.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The circuit structure is simple and the manufacturing cost is low; it is easy to expand: the integrated logic chip 74HC245 is used for parallel control, which saves the MOS tubes used in the control and saves the circuit scale;

[0016] 2. Real-time and efficient, audio signal visualization; synchronous display of sub-module information.

[0017] 3. Use DMA to divide the full-color RGBIC atmosphere light into N parallel sub-function modules; the lamp beads inside the sub-function modules are connected in series, and the series-connected lamp beads can be set to M at will, and assembled into an M*N matrix atmosphere light module through software.

[0018] 4. The method of paralleling first and then serializing can improve the efficiency of lamp data refresh; each sub-function module can be quickly controlled by point and group. With this modular design, the number of lamps in each sub-function module can be freely set, which can avoid the different numbers caused by the appearance of the product and adapt to various lighting methods. At the same time, the FFT music spectrum analysis function in the Bluetooth chip is used, assisted by the Fourier series analysis method to analyze the rich music spectrum information in the sound signal. The method of paralleling first and then serializing can well express the spectrum and intensity information contained in each band in the sound signal, making each section of sound information concrete and visual. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device;

[0020] Figure 2 This is a schematic diagram of a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device-1;

[0021] Figure 3 A schematic diagram of a communication unit of a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device;

[0022] Figure 4 A schematic diagram of multiple switches of a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device;

[0023] Figure 5 A schematic diagram of an output expansion unit of a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device;

[0024] Figure 6 It is an enlarged schematic diagram of an output expansion unit of a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device;

[0025] Description of the accompanying symbols:

[0026] 10-communication unit; 20-output expansion unit; 21-output expansion unit-A; 22-output expansion unit-B; 23-output expansion unit-C; 24-output expansion unit-D; 25-output expansion unit-E; 30-light-emitting control unit; 40-wireless radio frequency unit; 50-programmable microprocessing unit; 60-Fourier series transform unit; 70-memory unit; 100-illumination device; 31-output expansion unit-AA; 41-output expansion unit-AB; 51-output expansion unit-AC; 91-output expansion unit-AI; 38-output expansion unit-HA; 48-output expansion unit-HB; 58-output expansion unit-HC; 98-output expansion unit-II; DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Figures 1 to 6 The above purpose is achieved as shown.

[0028] The utility model provides the following technical solution: a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device, such as Figure 1 As shown, the utility model is a multi-channel synchronous real-time dynamic music full-color atmosphere lighting device, the lighting device 100 includes a communication unit 10, an output expansion unit 20 and a light control unit 30, wherein the communication unit 10 includes a wireless radio frequency unit 40, a programmable microprocessor unit 50, a Fourier series transform unit 60 and a memory unit 70, which are integrated inside the same chip; the communication unit 10 first controls the internal Fourier series transform unit 60 and the memory unit 70 according to the received signal, and then controls the external output expansion unit 20 and the light control unit 30, so that the lighting device 100 can change dynamically in real time in synchronization with the music; the lighting device 100 has the effect of a music spectrum lamp, is based on the free mapping of the output port of the communication unit 10, and the DMA data sending function, and adopts a circuit structure of first parallel connection and then series connection.

[0029] One is the output expansion unit 20, which adopts a circuit structure of first parallel connection and then series connection, and can be expanded in a matrix type, with 8-32 in the vertical direction and 8-128 in the horizontal direction. There can be one or more output expansion units 20, which can be adjusted according to the required number in the vertical and horizontal directions, such as Figure 1 As shown, output expansion unit-A 21, output expansion unit-B 22, output expansion unit-C 23, output expansion unit-D 24, and output expansion unit-E 25 are added. Figure 2 As shown, U3 and U5 are output expansion unit-A21 and output expansion unit-B22.

[0030] The second is the Fourier series transform unit 60. The communication unit 10 can change color according to the frequency signal received by the wireless radio frequency unit 40. The light control unit 30 has a serial transmission function, which can be densely arranged in parallel and simplify the circuit. Each group of light control units 30 has eight red control bits, eight blue control bits and eight green control bits, and can display full color. The duty cycle is high as bit one, the duty cycle is low as bit zero, and the continuous low bit greater than 280 microseconds is a reset signal. The Fourier series transform unit 60 can be plug-in or replaced by a software package. The utility model uses Jerry AC6321A4, which can be embedded in the software package.

[0031] The third is a communication unit 10, such as Figure 3 As shown, the communication unit 10 of the utility model uses Jerry AC6321A4, which has Bluetooth unit 2.1\4.2\5.0 functions, a microprocessor unit 32-bit CPU, an accelerator engine system ACCELERALOR ENGINEUMIT, a static random access memory SRAM- and a read-only memory MROM.

[0032] The fourth is the light control unit 30. The light control unit 30 of the utility model uses the WS2812B-4020 intelligent external control integrated LED light source. It uses serial transmission technology to simplify the wiring, can be directly connected in parallel, can be densely arranged in parallel and simplify the circuit. A communication unit is added, which contains a Fourier series transformation unit, which can change the color according to the frequency signal received by the wireless radio frequency unit. Make the changes vivid and interesting. The light control unit has eight red control bits, eight blue control bits and eight green control bits, and can display full color. WS2812B-4020 is an intelligent external control LED light source that integrates control circuit and light circuit. Each component is a pixel. The pixel contains an intelligent digital interface data latch signal shaping and amplification drive circuit, a high-precision internal oscillator and a programmable constant current control part, which effectively ensures that the color of the pixel light is highly consistent.

[0033] The data protocol uses a single-line return-to-zero code communication method. After the pixel is powered on and reset, the DIN terminal receives the data transmitted from the controller. The first 24-bit data is extracted by the first pixel and sent to the data latch inside the pixel. The remaining data is rectified by the internal shaping circuit.

[0034] After the shape is amplified, it is forwarded to the next cascaded pixel through the DO port. After each pixel is transmitted, the signal is reduced by 24 bits. The pixel adopts automatic shaping forwarding technology, so that the number of cascades of the pixel is not limited by signal transmission, but only by the signal transmission speed requirement. The port scanning frequency of up to 2KHz will not flicker under the capture of high-definition cameras, which is very suitable for the use of high-speed mobile products. The RESET time of more than 280μs will not cause false reset when an interrupt occurs, and it can support lower frequency and cheaper MCU. LED has the advantages of low voltage drive, environmental protection and energy saving, high brightness, large scattering angle, good consistency, low power and ultra-long life. Integrating the control circuit on the LED makes the circuit simpler, small in size and easier to install.

[0035] Among the preferred solutions, the utility model has multiple sets of switches, such as Figure 4 As shown, it can correspond to one or more usage environments, and can be selected according to the switch cycle. The selected mode is displayed in a specific area of ​​the light control unit 30.

[0036] The preferred solution is to automatically or manually update the programmable microprocessor unit 50 and the memory unit 70 in the communication unit (10) through wireless communication with the background.

[0037] Among them, the preferred solution is that the existing music spectrum lamp uses traditional LED lamp beads for display, and the color saturation, brightness and brightness change simply; the driving circuit is complex, the production and processing are difficult, and the cost is high; it is restricted by the hardware circuit, the control software architecture is complex, the content and mode of the lighting effect are simple, the upgrade and expansion are inconvenient, and the use scenarios are limited; it uses a serial data drive method, the real-time performance is low, and the data refresh time is very long; the utility model utilizes the powerful IO port free mapping capability of the Bluetooth chip and the powerful DMA technology and powerful computing power, combined with a simple and effective driving circuit, to express the sound in real time and efficiently as a sound signal in real time and dynamically and synchronously.

[0038] Among them, the preferred solution is that in this full-color RGBIC atmosphere lamp, 74HC245 is used as the control chip of DMA multi-channel synchronous parallel mode to drive WS2811 / SM16703 / 1903 and other serial timing modes;

[0039] This music spectrum lamp is based on the IO port free mapping and DMA data sending functions on the Bluetooth chip, and adopts a circuit structure of first parallel connection and then series connection.

[0040] The preferred solution is that the output expansion unit (20) adopts a circuit structure of first parallel connection and then series connection, which can be expanded in a matrix type, with 8-32 in the vertical direction and 8-128 in the horizontal direction. It can be divided into zones to form advertisements or scrolling lights. Figure 1As shown, there are output expansion unit-AA 31, output expansion unit-AB 41, output expansion unit-AC 51, output expansion unit-AI 91, output expansion unit-HA 38, output expansion unit-HB 48, output expansion unit-HC 58, output expansion unit-II 98, etc., forming a matrix. Figure 5 and Figure 6 As shown, the DOUT of each output expansion unit is connected to the DIN of the next output expansion unit. Multiple groups can be connected in series. Controlling the DIN of the first output expansion unit can control the entire string of output expansion units.

[0041] The preferred solution is that before driving the LED, the Bluetooth chip is initialized first, the IO is set as the data port for driving the LED lamp, it is connected to the input port of the logic driver chip, and the logic voltage 3.3V signal is converted into a 4.4V~5V signal, so that it can safely drive the LED lamp beads.

[0042] The preferred solution is to set the IO free image polling mode in the DMA inside the Bluetooth chip, and each IO port sends a serial data signal, and achieves the mode of parallel first and then serial through the free image mode;

[0043] The preferred solution is to use the FFT function in the chip to perform Fourier series transformation on the data, convert the analog signal in the audio signal into M*N matrix modularization, and digitize the analog signal, which is expressed as a light display for visualization.

[0044] Among them, the preferred scheme; the utility model has a simple circuit structure and a low manufacturing cost; it is easy to expand: it uses the integrated logic chip 74HC245 parallel control to save MOS tubes used in the control and save circuit scale; it is real-time and efficient, and the audio signal is visualized; it synchronously displays the information of the sub-modules.

[0045] Among them, the preferred solution is to use DMA to divide the full-color RGBIC atmosphere light into N parallel sub-functional modules; the lamp beads inside the sub-functional modules are connected in series, and the series-connected lamp beads can be arbitrarily set to M, and assembled into an M*N matrix atmosphere light module through software.

[0046] The preferred solution is to use the method of paralleling first and then serializing to improve the efficiency of lamp data refresh; each sub-function module can be quickly controlled by point and group. With this modular design, the number of lamps in each sub-function module can be freely set, which can avoid the different numbers caused by product appearance and adapt to various lighting methods. At the same time, the FFT music spectrum analysis function in the Bluetooth chip is used, assisted by the Fourier series analysis method to analyze the rich music spectrum information in the sound signal. The method of paralleling first and then serializing can well express the spectrum and intensity information contained in each band in the sound signal, making each section of sound information concrete and visual.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

[0048] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A multi-channel synchronous real-time dynamic music full-color atmosphere lighting device, characterized in that The lighting device (100) comprises a communication unit (10), an output expansion unit (20) and a light control unit (30), wherein the communication unit (10) comprises a wireless radio frequency unit (40), a programmable microprocessing unit (50), a Fourier series transform unit (60) and a memory unit (70), which are integrated inside the same chip; the communication unit (10) first controls the internal Fourier series transform unit (60) and the memory unit (70) according to the received signal, and then controls the external output expansion unit (20) and the light control unit (30), so that the lighting device (100) can be dynamically changed in real time in synchronization with the music; the lighting device (100) has the function of a music spectrum lamp, is based on the free mapping of the output port of the communication unit (10), and the DMA data transmission function, and adopts a circuit structure of first parallel connection and then series connection.

2. A multi-channel synchronous real-time dynamic music full-color atmosphere lighting device according to claim 1, characterized in that The output expansion unit (20) adopts a circuit structure of first parallel connection and then series connection, and can be expanded in a matrix type, with 8 to 128 units in the vertical direction and 8 to 32 units in the horizontal direction.

3. A multi-channel synchronous real-time dynamic music full-color atmosphere lighting device according to claim 1, characterized in that The Fourier series transform unit (60) and the communication unit (10) can change color according to the frequency signal received by the wireless radio frequency unit (40).

4. A multi-channel synchronous real-time dynamic music full-color atmosphere lighting device according to claim 1, characterized in that The light emitting control unit (30) has a serial transmission function, can be densely arranged in parallel and simplified circuit, and each group of light emitting control units (30) has eight red control bits, eight blue control bits and eight green control bits, and can display full color.

5. A multi-channel synchronous real-time dynamic music full-color atmosphere lighting device according to claim 1, characterized in that The light emitting control unit (30) has a serial transmission function, with a high duty cycle as bit one and a low duty cycle as bit zero, and a continuous low bit greater than 280 microseconds as a reset signal.

6. A multi-channel synchronous real-time dynamic music full-color atmosphere lighting device according to claim 1, characterized in that The communication unit (10) has multiple sets of switches, which can correspond to one or more usage environments.

7. The multi-channel synchronous real-time dynamic music full-color atmosphere lighting device according to claim 1, characterized in that The communication unit (10) can automatically or manually update the programmable microprocessor unit (50) and the memory unit (70) inside the communication unit (10) through wireless communication with the background.

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