Control method for LED (light-emitting diode) fantasy color display screen with external controller

Abstract

The invention discloses an LED colorful display screen control method of an external controller, and the method employs the design that the external controller is separated from an LED display screen, a conventional LED display screen employs a built-in controller, and once a control device breaks down, the whole display screen needs to be dismounted for maintenance or replacement. And the maintenance cost is high. According to the external controller, the control device and the display screen are separated, only the external controller needs to be maintained or replaced when the fault occurs, the display screen does not need to be disassembled, and therefore the maintenance cost is greatly reduced. In addition, a traditional built-in controller can only control one display screen and cannot support linkage control of a plurality of display screens, so that the expansibility of the system is limited. Different from the prior art, the external controller can control a plurality of LED fantasy color display screens at the same time through introduction of components of the internet of things, the flexibility and expansibility of the system are greatly improved, and more complex application requirements can be met.

Description

Technical Field

[0001] The invention relates to the technical field of display screens, and in particular to a method for controlling an LED colorful display screen of an external controller. Background Art

[0002] With the development of intelligent technology, LED displays, as an important visual display tool, are gradually used in scenes such as car windows and architectural glass to display rich content such as text, animations and pictures. Traditional LED displays usually cover the screen body with a protective film to adapt to various transparent surfaces, especially when installed on car windows, so that outsiders can clearly see the dynamic effects on the LED display.

[0003] At present, the LED display screens widely used on the market usually adopt a built-in controller structure, that is, the control device is directly integrated into the interior of the LED display screen, and the USB or Type-C interface is used only as a power supply. Although this technical solution can complete the basic display function, it has the following significant defects: First, the maintenance cost is high: Since the control device and the LED display screen are designed as an integrated whole, once the control device fails, it is often necessary to destroy the entire screen for repair or replacement, resulting in high maintenance costs; second, insufficient expansion capabilities: the built-in controller can only control one display screen, and the controller is tightly bound to the screen body, and it is impossible to achieve a scenario where a control device drives multiple displays at the same time, which limits the flexibility and scope of application of the system; third, limited functions: Since the control components are covered by a film, the microphone cannot be exposed, and voice control cannot be achieved, which makes the LED display screen insufficient in terms of intelligence and interactivity, and it is difficult to meet the needs of higher-level users.

[0004] Therefore, the problems of high maintenance cost, insufficient system scalability and limited voice control function of existing LED display screens have become issues that need to be solved urgently. Summary of the invention

[0005] To this end, an embodiment of the present invention provides a method for controlling an LED colorful display screen with an external controller to solve the problems of high maintenance cost, insufficient system scalability, and limited voice control and hardware music rhythm functions in existing LED display screens.

[0006] In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

[0007] A method for controlling an LED colorful display screen of an external controller, the method being applied to an LED colorful display screen of an external controller, the LED colorful display screen of the external controller comprising an external controller, a connector and an LED colorful display screen, the external controller being connected to the LED colorful display screen via the connector; the external controller comprising a voice collection component, a voice control component, an Internet of Things component and a driving component;

[0008] The control method comprises:

[0009] When the LED colorful display screen needs to be controlled by voice offline, the voice collecting component collects a first sound signal and converts the first sound signal into a first digital signal;

[0010] The voice control component converts the first digital signal output by the voice collection component into a control command;

[0011] The voice control component matches the control command with commands in a voice command library;

[0012] If there is a command matching the control command, the voice control component sends the control command to the Internet of Things component;

[0013] If there is no command matching the control command, the voice control component stops operating and enters a pending state;

[0014] When the Internet of Things component receives the control command, the Internet of Things component processes the control command and generates a corresponding first control signal according to the LED colorful display screen protocol;

[0015] The Internet of Things component amplifies the first control signal through the driving component to drive the LED colorful display screen through the connector to display the content corresponding to the first control signal.

[0016] Optionally, the voice collection component includes a microphone and a microphone circuit, the output end of the microphone is connected to the input end of the microphone circuit, and the output end of the microphone circuit is connected to the input end of the voice control component;

[0017] The step of collecting the first sound signal through the voice collecting component and converting the first sound signal into a first digital signal includes:

[0018] A first sound signal is collected through the microphone and sent to a microphone circuit; wherein the first sound signal is an analog signal.

[0019] Optionally, the method further includes:

[0020] When the LED colorful display screen needs to be played with music rhythm, the second sound signal is collected by the voice collection component;

[0021] The Internet of Things component performs analog-to-digital conversion processing on the second sound signal to obtain a second digital signal corresponding to the second sound signal;

[0022] The Internet of Things component amplifies the second digital signal to obtain music rhythm data corresponding to the second digital signal;

[0023] The Internet of Things component generates a second control signal corresponding to the music rhythm data based on the music rhythm data and the protocol of the LED colorful display screen;

[0024] The Internet of Things component amplifies the second control signal through the driving component to drive the LED colorful display screen through the connector to display the content corresponding to the second control signal.

[0025] Optionally, the LED colorful display screen of the external controller further includes an input connector, and an input end of the input connector is connected to an external power supply;

[0026] The external controller further includes a power supply component, the input end of the power supply component is connected to the output end of the input connector, the output end of the power supply component is respectively connected to the power supply ends of the Internet of Things component, the driving component and the voice control component, and the power supply component is used to convert the power supply voltage output by the input connector into a first voltage, and provide the first voltage for the Internet of Things component, the driving component and the voice control component;

[0027] The output end of the voice control component is connected to the input end of the Internet of Things component, and the output end of the Internet of Things component is connected to the input end of the driving component. The voice control component is used to process the voice signal to obtain a control signal corresponding to the voice signal, and the Internet of Things component is used to transmit the control signal to the driving component, so that the driving component generates a driving signal based on the control signal;

[0028] The output end of the driving component is connected to the LED colorful display screen through the connector.

[0029] Optionally, the LED colorful display screen includes colorful lamp beads, and the colorful lamp beads receive the driving signal through a single signal line structure.

[0030] Optionally, the connector is a TYPE-C connector, a terminal connector or a welding wire connection; and the Internet of Things component includes a WiFi module or a Bluetooth module.

[0031] Optionally, the voice control component processes the voice signal through an offline voice recognition technology to obtain the control signal corresponding to the voice signal.

[0032] Optionally, the driving component communicates with the LED colorful display screen via an SPI signal protocol.

[0033] Optionally, the number of the LED colorful display screens is at least two, and each of the LED colorful display screens is connected to the driving component or the previous LED colorful display screen via a three-wire structure.

[0034] Optionally, the microphone circuit includes a signal filtering circuit and a noise reduction processing circuit, the input end of the signal filtering circuit is connected to the output end of the microphone, the output end of the signal filtering circuit is connected to the input end of the noise reduction processing circuit, and the output end of the noise reduction processing circuit is connected to the input end of the voice control component.

[0035] The present invention has at least the following beneficial effects:

[0036] The LED colorful display screen control method of the external controller of the present invention adopts a design in which the external controller is separated from the LED display screen, which significantly solves the problems existing in the prior art such as high maintenance cost, poor system scalability, and limited functions. The traditional LED display screen adopts a built-in controller. Once the control device fails, the entire display screen needs to be disassembled for repair or replacement, resulting in high maintenance costs. The external controller of the present invention separates the control device from the display screen, and only the external controller needs to be repaired or replaced in case of failure, without disassembling the display screen, thereby greatly reducing the maintenance cost. In addition, the traditional built-in controller can only control one display screen and cannot support the linkage control of multiple display screens, which limits the scalability of the system. In contrast, the present invention enables the external controller to control multiple LED colorful display screens at the same time through the introduction of Internet of Things components, greatly improving the flexibility and scalability of the system and meeting more complex application requirements. The voice control function is also a bottleneck of the existing LED display screen technology. Since the control components are usually covered with a film, the built-in controller cannot expose the microphone and cannot perform voice control. The present invention integrates the voice collection component and the voice control component into an external controller, so that it can realize the offline voice recognition function. The user can control the LED colorful display screen through voice commands, which greatly enhances the intelligence and interactivity and meets the needs of higher-level users for intelligent control. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly explain the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the embodiments of the present invention. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, other drawings can be derived from the provided drawings without creative work.

[0038] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0039] Figure 1 A schematic flow chart of a method for controlling a colorful LED display screen provided by an external controller according to an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of the structure of an LED colorful display screen with an external controller provided by an embodiment of the present invention;

[0041] Figure 3 A circuit principle block diagram of an external controller and an LED colorful display screen provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are intended to distinguish the objects referred to. For schemes with a sequential flow, this terminology does not have to be understood as describing a specific order or sequence. For schemes with device structures, this terminology does not distinguish between importance, positional relationships, etc.

[0044] In addition, the terms "comprises", "has" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that have been explicitly listed, but may also include other steps or units that are not explicitly listed but are inherent to these processes, methods, products or apparatuses, or steps or units that are added based on further optimization schemes conceived by the present invention.

[0045] like Figure 1 , Figure 2 and Figure 3 As shown, a method for controlling a LED colorful display screen of an external controller, a method for controlling a LED colorful display screen of an external controller, the method is applied to a LED colorful display screen of an external controller, the LED colorful display screen of the external controller comprises an external controller 2, a connector 3 and an LED colorful display screen 4, the external controller 2 is connected to the LED colorful display screen 4 via the connector 3; the external controller 2 comprises a voice collection component, a voice control component 8, an Internet of Things component 6 and a driving component 7;

[0046] The control method comprises:

[0047] When the LED colorful display screen 4 needs to be controlled by voice offline, the first sound signal is collected by the voice collection component, and the first sound signal is converted into a first digital signal;

[0048] The voice control component 8 converts the first digital signal output by the voice collection component into a control command;

[0049] The voice control component 8 matches the control command with the command in the voice command library;

[0050] If there is a command matching the control command, the voice control component 8 sends the control command to the Internet of Things component 6;

[0051] If there is no command matching the control command, the voice control component 8 stops operating and enters a pending state;

[0052] When the Internet of Things component 6 receives the control command, the Internet of Things component 6 performs data processing on the control command and generates a corresponding first control signal according to the protocol of the LED colorful display screen 4;

[0053] The Internet of Things component 6 amplifies the first control signal through the driving component 7 to drive the LED colorful display screen 4 through the connector 3 to display the content corresponding to the first control signal.

[0054] In this embodiment, the voice collection component includes a microphone 10 and a microphone circuit 9, the output end of the microphone 10 is connected to the input end of the microphone circuit 9, and the output end of the microphone circuit 9 is connected to the input end of the voice control component 8;

[0055] The step of collecting the first sound signal through the voice collecting component and converting the first sound signal into a first digital signal includes:

[0056] The microphone 10 is used to collect a first sound signal, and the first sound signal is sent to a microphone circuit; wherein the first sound signal is an analog signal;

[0057] Converting the first sound signal into the first digital signal or analog circuit through the microphone circuit 9;

[0058] In this embodiment, the method further includes:

[0059] When the LED colorful display screen 4 needs to be subjected to music rhythm, the second sound signal is collected by the voice collection component;

[0060] The Internet of Things component 6 performs analog-to-digital conversion processing on the second sound signal to obtain a second digital signal corresponding to the second sound signal;

[0061] The Internet of Things component 6 amplifies the second digital signal to obtain music rhythm data corresponding to the second digital signal;

[0062] The Internet of Things component 6 generates a second control signal corresponding to the music rhythm data based on the music rhythm data and the protocol of the LED colorful display screen 4;

[0063] The Internet of Things component 6 amplifies the second control signal through the driving component 7 to drive the LED colorful display screen 4 through the connector 3 to display the content corresponding to the second control signal.

[0064] In this embodiment, the LED colorful display screen of the external controller further includes an input connector 1, and the input end of the input connector 1 is connected to an external power source;

[0065] The external controller 2 further includes a power supply component 5, the input end of the power supply component 5 is connected to the output end of the input connector 1, and the output end of the power supply component 5 is respectively connected to the power supply ends of the Internet of Things component 6, the driving component 7 and the voice control component 8, and the power supply component 5 is used to convert the power supply voltage output by the input connector 1 into a first voltage, and provide the first voltage for the Internet of Things component 6, the driving component 7 and the voice control component 8;

[0066] The output end of the voice control component 8 is connected to the input end of the Internet of Things component 6, and the output end of the Internet of Things component 6 is connected to the input end of the driving component 7. The voice control component 8 is used to process the voice signal to obtain a control signal corresponding to the voice signal, and the Internet of Things component 6 is used to transmit the control signal to the driving component 7, so that the driving component 7 generates a driving signal based on the control signal;

[0067] The output end of the driving component 7 is connected to the LED colorful display screen 4 through the connector 3 .

[0068] In this embodiment, the LED colorful display screen 4 includes colorful lamp beads, and the colorful lamp beads receive the driving signal through a single signal line structure.

[0069] In this embodiment, the connector 3 is a TYPE-C connector, a terminal connector or a welding wire connection; the Internet of Things component 6 includes a WiFi module or a Bluetooth module.

[0070] In this embodiment, the voice control component 8 processes the voice signal through an off-line voice recognition technology to obtain the control signal corresponding to the voice signal.

[0071] In this embodiment, the driving component 7 communicates with the LED colorful display screen 4 through the SPI signal protocol.

[0072] In this embodiment, the number of the LED colorful display screens 4 is at least two, and each of the LED colorful display screens 4 is connected to the driving component 7 or the previous LED colorful display screen via a three-wire structure.

[0073] In this embodiment, the microphone circuit 9 includes a signal filtering circuit and a noise reduction processing circuit. The input end of the signal filtering circuit is connected to the output end of the microphone 10, the output end of the signal filtering circuit is connected to the input end of the noise reduction processing circuit, and the output end of the noise reduction processing circuit is connected to the input end of the voice control component 8.

[0074] The LED colorful display screen control method of the external controller of the present invention realizes offline voice control and music rhythm control of the LED colorful display screen through efficient interaction between the external controller and the LED colorful display screen. Compared with the prior art, the present invention has the following significant technical effects, thereby solving the key problems existing in the background technology:

[0075] Reduce maintenance costs: In the traditional built-in controller structure, the control device and the LED display screen are designed as an integrated whole. If the control device fails, the entire display screen often needs to be disassembled for repair or replacement, resulting in high maintenance costs. However, the present invention adopts the design of an external controller, and the controller is separated from the display screen. In case of failure, only the external controller needs to be repaired or replaced, and there is no need to disassemble the display screen, which greatly reduces maintenance costs.

[0076] Enhanced system scalability: In the traditional built-in controller solution, one controller can only control one LED display screen, and cannot realize the linkage control of multiple display screens. The external controller of the present invention supports communication and control with multiple display screens through the Internet of Things components, and can drive multiple LED colorful display screens at the same time, which improves the scalability and flexibility of the system and adapts to a wider range of application scenarios.

[0077] Realize voice control function: Traditional LED display screens cannot realize voice control because the control components are covered by a film and the microphone cannot be exposed. However, the present invention separates the voice collection component from the voice control component, integrates the microphone and voice processing function in the external controller, and can realize the control of the LED colorful display screen through voice commands, which improves the intelligence of the display screen and the user interaction experience, and meets the needs of higher-level users.

[0078] Through the above technical effects, the present invention not only solves the problems of high maintenance cost, poor scalability, limited voice control and lack of intelligent functions in the prior art, but also realizes flexible control of multiple display screens and dynamic display functions based on voice and music, which significantly improves the intelligence, interactivity and user experience of the LED display screen and has broad application prospects.

[0079] In one embodiment, the existing LED display screen covers the main body with a protective film, which can be attached to various glasses and car windows, allowing people outside to see the animation on the LED colorful display screen. The LED colorful display screen can display a lot of rich content and can input various information such as text, animation, and pictures.

[0080] Existing similar products: LED display screen with built-in controller, the control device is built into the LED colorful display screen, and the USB cable is only used for power supply;

[0081] Disadvantages of the existing technology:

[0082] The control device is built into the LED colorful display. If it is damaged, the screen must be destroyed for repair, and the repair cost is high.

[0083] One control device can only correspond to one LED colorful display screen, the screen body cannot be separated, and it is impossible to realize the scene of one control device controlling two display screens.

[0084] Since the control components are on the screen, which is covered by a film, the microphone cannot be exposed, and voice control and hardware music rhythm functions cannot be realized;

[0085] The present embodiment provides a control device for an LED colorful display screen of an external controller for controlling the LED colorful display screen. The smart device APP, voice command and remote control send specific data to the controller. The controller processes the data and outputs it to the LED colorful display screen. The LED colorful display screen displays corresponding animations according to the data sent by the controller. The controller and the LED colorful display screen are connected via a Type-C interface, which is more convenient to use.

[0086] A control device of an LED colorful display screen with an external controller can transmit control data through an APP, wireless remote control and voice command through a power supply component, an Internet of Things component, a voice control component and a driving component, and is easy to operate. Compared with a built-in control device, the signal of the external control device can be output independently, and two screens can be connected at the same time, making it more convenient to connect to the screen.

[0087] Since the controller is exposed separately and does not need to be glued, the microphone can be placed on the controller to realize the functions of voice controller and hardware music rhythm;

[0088] The control device of the LED colorful display screen with an external controller provided in this embodiment comprises an input connector 1, an external controller 2, a connector 3 and an LED colorful display screen 4;

[0089] The input interface may be a USB connector or a connector; the input connector includes a connector and a wire; the connector includes a Type-C connector and a wire;

[0090] The external controller 2 includes a power supply component 5, an Internet of Things component 6, a driving component 7, a voice control component 8, a microphone circuit 9 and a microphone 10;

[0091] Figure 1 This is a structural diagram of an external controller connected to the LED colorful display screen through a connector;

[0092] Figure 2 It is a block diagram of a control device for an LED colorful display screen with an external controller;

[0093] Smart devices: devices that have IoT functions and can install APPs, including but not limited to smartphones and smart tablets. Smart devices are wirelessly connected to IoT components through wireless technology;

[0094] APP: installed in smart devices, including but not limited to IOS system, Android system, and Hongmeng system;

[0095] Power supply component: Connect to the power supply via USB or Type-C. Convert the input high-voltage power supply into a constant low-voltage voltage to power the IoT components, voice control components, and drive components; the connection line between the power supply component and the input connector is a 2-wire structure, which is the positive and negative poles of the power supply;

[0096] IoT components: IoT components are the core part, which are electrically connected to the drive components, voice control components, and power supply components. The IoT chip in the IoT circuit is responsible for transmitting data and coordinating the work of each circuit. IoT components communicate with smart devices and send and receive related control commands.

[0097] Voice control component: electrically connected to the IoT component, power supply component, and microphone circuit, responsible for processing voice signals and displaying corresponding animation effects according to voice commands.

[0098] Microphone circuit: electrically connected to the voice control component and the microphone; responsible for transmitting the signal received by the microphone to the voice control component;

[0099] Microphone: electrically connected to the microphone circuit, responsible for receiving sound analog signals;

[0100] Driving component: The driving circuit is connected to the LED display screen. The signal is transmitted to the LED colorful display screen through the signal line.

[0101] LED fantasy color display screen: electrically connected to the driving component. The connection line between the driving component and the LED fantasy color display screen is a 3-wire structure, including the positive pole of the power supply, the negative pole of the power supply, and the signal line. The lamp beads on the display screen are fantasy color lamp beads, driven by SPI signals, and have a single signal line structure.

[0102] A control device for externally controlling an LED colorful display screen in this embodiment can send control instructions to an Internet of Things circuit through a wireless remote control, a smart device, or offline voice. The Internet of Things circuit sends control data to a drive circuit, and then sends the control data to the LED colorful display screen. The LED colorful display screen displays related animation effects.

[0103] This embodiment has a simple and convenient structure. The controller is separated from the display screen, which can realize offline voice control and hardware music rhythm. At the same time, the two parts can be replaced separately by adopting a separate structure, which is convenient for after-sales service. Because the screen signal line is simple, it is easy to change the screen, and the screen form is rich.

[0104] This device consists of a smart device, an external controller, an LED colorful display, an input connector, and a connector; the smart device includes an APP; the external controller includes a power supply component, an Internet of Things component, a drive component, a voice control component, a microphone circuit, and a microphone. The controller and the display are separate structures.

[0105] The control object of this embodiment is the LED colorful display screen, which uses colorful lamp beads. The entire screen only needs one signal line. The direct connection line between the controller and the screen is a 3-wire structure, including the positive pole of the power line, the negative pole of the power line and the signal line;

[0106] This device contains IoT components, which can be connected to a smartphone via an IoT chip and controlled using an APP. IoT chips include but are not limited to WIFI and Bluetooth chips.

[0107] This device supports wireless remote control.

[0108] The controller of this device contains voice control components and microphone circuits. The microphone collects surrounding sounds, and the lighting effects change according to the rhythm of the sound. At the same time, the microphone detects the corresponding voice command, and when the voice command is the target voice command, the corresponding operation is performed. The voice control method is offline voice;

[0109] The external controller is connected to the LED colorful display screen through a connector; it is also connected to the power supply through a connector or a USB connector; through this structural process, the purpose of offline voice, remote control and APP control of the LED colorful display screen is achieved.

[0110] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for controlling an LED colorful display screen with an external controller, characterized in that: The method is applied to an LED colorful display screen with an external controller, wherein the LED colorful display screen with an external controller comprises an external controller (2), a connector (3) and an LED colorful display screen (4), wherein the external controller (2) is connected to the LED colorful display screen (4) via the connector (3); the external controller (2) comprises a voice collection component, a voice control component (8), an Internet of Things component (6) and a driving component (7); The control method comprises: When it is necessary to perform offline voice control on the LED colorful display screen (4), the first sound signal is collected by the voice collection component, and the first sound signal is converted into a first digital signal; The voice control component (8) converts the first digital signal output by the voice collection component into a control command; The voice control component (8) matches the control command with commands in a voice command library; If there is a command matching the control command, the voice control component (8) sends the control command to the Internet of Things component (6); If there is no command matching the control command, the voice control component (8) stops operating and enters a pending state; When the Internet of Things component (6) receives the control command, the Internet of Things component (6) performs data processing on the control command and generates a corresponding first control signal according to the LED colorful display screen (4) protocol.

2. The method for controlling a LED colorful display screen with an external controller according to claim 1, characterized in that: The voice collection component comprises a microphone (10) and a microphone circuit (9), the output end of the microphone (10) is connected to the input end of the microphone circuit (9), and the output end of the microphone circuit (9) is connected to the input end of the voice control component (8); The step of collecting the first sound signal through the voice collecting component and converting the first sound signal into a first digital signal includes: A first sound signal is collected through the microphone (10), and the first sound signal is sent to a microphone circuit; wherein the first sound signal is an analog signal.

3. The method for controlling a LED colorful display screen with an external controller according to claim 1, characterized in that: The method further comprises: When it is necessary to perform musical rhythm on the LED colorful display screen (4), the second sound signal is collected by the voice collection component; The Internet of Things component (6) performs analog-to-digital conversion processing on the second sound signal to obtain a second digital signal corresponding to the second sound signal; The Internet of Things component (6) amplifies the second digital signal to obtain music rhythm data corresponding to the second digital signal; The Internet of Things component (6) generates a second control signal corresponding to the music rhythm data based on the music rhythm data and the protocol of the LED colorful display screen (4); The Internet of Things component (6) amplifies the second control signal through the driving component (7) so as to drive the LED colorful display screen (4) to display the content corresponding to the second control signal through the connector (3).

4. The method for controlling a LED colorful display screen with an external controller according to claim 1, characterized in that: The LED colorful display screen of the external controller further comprises an input connector (1), and an input end of the input connector (1) is connected to an external power source; The external controller (2) further comprises a power supply component (5), wherein an input end of the power supply component (5) is connected to an output end of the input connector (1), and an output end of the power supply component (5) is respectively connected to power supply ends of the Internet of Things component (6), the drive component (7) and the voice control component (8), and the power supply component (5) is used to convert a power supply voltage output by the input connector (1) into a first voltage, and provide the first voltage to the Internet of Things component (6), the drive component (7) and the voice control component (8); The output end of the voice control component (8) is connected to the input end of the Internet of Things component (6), and the output end of the Internet of Things component (6) is connected to the input end of the driving component (7). The voice control component (8) is used to process the voice signal to obtain a control signal corresponding to the voice signal, and the Internet of Things component (6) is used to transmit the control signal to the driving component (7), so that the driving component (7) generates a driving signal based on the control signal. The output end of the driving component (7) is connected to the LED colorful display screen (4) via the connector (3).

5. The method for controlling a LED colorful display screen with an external controller according to claim 1, characterized in that: The LED colorful display screen (4) comprises colorful lamp beads, and the colorful lamp beads receive the driving signal via a single signal line structure.

6. The method for controlling a LED colorful display screen with an external controller according to claim 1, characterized in that: The connector (3) is a TYPE-C connector, a terminal connector or a welding wire connection; the Internet of Things component (6) includes a WiFi module or a Bluetooth module.

7. The method for controlling a LED colorful display screen with an external controller according to claim 1, characterized in that: The voice control component (8) processes the voice signal through an off-line voice recognition technology to obtain the control signal corresponding to the voice signal.

8. The method for controlling a LED colorful display screen with an external controller according to claim 1, characterized in that: The driving component (7) communicates with the LED colorful display screen (4) via an SPI signal protocol.

9. The method for controlling a LED colorful display screen with an external controller according to claim 1, characterized in that: The number of the LED colorful display screens (4) is at least two, and each of the LED colorful display screens (4) is connected to the driving component (7) or the previous LED colorful display screen via a three-wire structure.

10. The method for controlling a LED colorful display screen with an external controller according to claim 2, characterized in that: The microphone circuit (9) comprises a signal filtering circuit and a noise reduction processing circuit, wherein the input end of the signal filtering circuit is connected to the output end of the microphone (10), the output end of the signal filtering circuit is connected to the input end of the noise reduction processing circuit, and the output end of the noise reduction processing circuit is connected to the input end of the voice control component (8).

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