Intelligent sound control lamp control circuit
By adopting the main control chip U1 with built-in flash boot program function and infrared remote control circuit, the circuit structure of the smart night light is simplified, solving the problems of complex and high cost of traditional night light circuits, and achieving a low-cost, feature-rich intelligent control effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional smart nightlights have complex control circuit structures and high costs, mainly due to the need for independent storage circuits, infrared emitting circuits, and high-cost main control chips, which increases the difficulty of circuit design.
The main control chip U1 with built-in flash boot program function is used, combined with infrared transmitters IFR1 and IFR2 and infrared receiver IRM, which simplifies the circuit structure, reduces independent storage and infrared emission control chips, uses RGB LED light-emitting modules and audio output modules, supports voice control and remote control functions, and the power system adopts a dual power supply design.
It achieves feature-rich intelligent control, reduces circuit costs and design complexity, and improves product portability and safety.
Smart Images

Figure CN224083749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting control circuit technology, and in particular to an intelligent control circuit mainly used for nightlights and other lighting fixtures. Background Technology
[0002] Simple lamps such as nightlights are currently popular lighting devices due to their compact size, soft light, and ease of use. However, traditional lamps of this type are limited to basic illumination, making their functionality too singular. To address this, various multifunctional lamps have been invented. For example, Chinese utility model patent CN202020738904.5 discloses a smart voice-activated nightlight. In addition to supporting voice control of turning the nightlight on, off, and dimming, it also provides an infrared remote control function, allowing users to control air conditioning operation via voice commands, including turning it on and off and adjusting the temperature. It also features a built-in voice system that can respond with keywords, supports offline voice control (no internet connection or app download required), and is plug-and-play. Therefore, this nightlight greatly enriches the functionality of lighting devices and improves ease of use. However, the control circuit of this night light is complex and expensive, mainly in the following aspects: First, it requires an independent storage circuit, which needs to be equipped with an independent storage chip; second, the infrared emitting circuit needs to be equipped with an independent control chip, which increases the cost; third, the main control circuit uses a 56-pin CI110X chip, which is expensive and will lead to a more complex circuit structure. Utility Model Content
[0003] This invention addresses the shortcomings of existing technologies by providing an intelligent voice-controlled light control circuit with a simpler circuit structure, fewer chips, lower cost, and reduced circuit design complexity.
[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an intelligent voice-controlled light control circuit, including a main control circuit, a lighting circuit, a voice control module, an audio output module, a remote control circuit, and a power supply circuit; the lighting circuit, the voice control module, the audio output module, and the remote control circuit are respectively connected to the main control circuit, and the power supply circuit provides power to each circuit module; the main control circuit adopts a main control chip U1 with a built-in flash boot program function, and the microphone MIC of the voice control module is connected to the MIC pin and MIC_BAIS pin of the main control chip U1; the USBDP / PA4 pin and USB_DM / PC3 pin of the main control chip U1 are connected to a program burning module, and the program burning module controls the main control chip U1 to realize program upgrade.
[0005] The main control chip U1 is model BA6816. Its pins 2, 9 and 12 are connected to the lighting circuit, which uses RGB LED light-emitting modules. The audio output module is connected to pin 1 of the main control chip U1.
[0006] The main control chip U1 can also use chips of models such as 7803A16, 6816D8, 6824D, 6816D, 7803A16 or 6816D8.
[0007] The remote control circuit adopts an infrared remote control circuit, including an infrared transmitting circuit and an infrared receiving circuit. The infrared transmitting circuit uses two infrared transmitters IFR1 and IFR2, which are connected in parallel and are both IFR_LED. The infrared transmitting circuit is connected to pin 10 of the main control chip U1.
[0008] The infrared receiving circuit uses an IRM infrared receiver, model LF0038, to receive remote control signals from the controlled electrical appliances. The infrared receiving circuit is connected to pin 5 of the main control chip U1.
[0009] The power supply circuit includes a power input circuit J1 and a battery module BATT. The power input circuit J1 forms the power socket for the whole machine, and the battery module BATT forms the power supply interface for the battery box. The battery module BATT and the power input circuit J1 form a dual power supply system.
[0010] It also includes a power selection module, which is equipped with a diode D3. The diode D3 allows the voltage of the power socket to be reversed to charge the battery module BATT.
[0011] The power input circuit J1 uses a TYPE-C interface or a MICRO-USB interface, etc.
[0012] The audio output module uses an FM8002A amplifier.
[0013] Alternatively, the remote control circuit can also use a Bluetooth module or a WIFI module to achieve remote control.
[0014] This invention employs a main control chip with a built-in flash boot program, along with IFR1 and IFR2 as infrared transmitters and IRM as an infrared receiver or Bluetooth module for transmitting and receiving remote control signals. It also includes an audio output circuit, an LED light-emitting module, and a power supply circuit. This allows for voice command control of LEDs (on or off) and the sending of wireless control signals to appliances such as air conditioners. It enables various operations such as powering on / off, adjusting temperature, fan speed, and operating modes. Furthermore, it saves on independent storage circuits and infrared transmission control chips, and uses a simpler main control chip. This simplifies the overall circuit structure, reduces costs, and simplifies circuit design. Attached Figure Description
[0015] Figure 1 This is the schematic diagram of the main control circuit of this utility model;
[0016] Figure 2 This is a circuit schematic diagram of an LED light-emitting module;
[0017] Figure 3 This is the schematic diagram of the audio output circuit.
[0018] Figure 4 This is a schematic diagram of an infrared emitting circuit.
[0019] Figure 5 This is a schematic diagram of an infrared receiver circuit.
[0020] Figure 6 This is the schematic diagram of the power input circuit;
[0021] Figure 7 This is a schematic diagram of the battery module.
[0022] Figure 8 Schematic diagram for power supply selection module;
[0023] Figure 9 This is a schematic diagram of the program burning module. Detailed Implementation
[0024] In this embodiment, refer to Figures 1-9The intelligent voice-controlled light control circuit includes a main control circuit, a lighting circuit, a voice control module, an audio output module, a remote control circuit, and a power supply circuit. The lighting circuit, voice control module, audio output module, and remote control circuit are each connected to the main control circuit, and the power supply circuit provides power to each module. The main control circuit uses a main control chip U1 with built-in flash boot program functionality, eliminating the need for WiFi, app installation, additional storage circuitry, or mobile phone activation, thus offering good security and privacy. The microphone (MIC) of the voice control module is connected to the MIC and MIC_BAIS pins of the main control chip U1. A program programming module is connected to the USBDP / PA4 and USB_DM / PC3 pins of the main control chip U1, enabling program upgrades by controlling the main control chip U1 through the program programming module.
[0025] The main control chip U1 is model BA6816. This chip has a simple structure, fewer pins, and lower cost. Its pins 2, 9, and 12 are connected to the lighting circuit, which uses RGB LED light-emitting modules. The audio output module is connected to pin 1 of the main control chip U1.
[0026] In addition, the main control chip U1 can also adopt the following types: for example, the 7803A16 English (full code library) voice control supports approximately 1300 types of air conditioners overseas, the 6816D8 Chinese (full code library) voice control supports approximately 100 types of air conditioners domestically, the 6824D Chinese (partial code library) voice control supports approximately 30 types of air conditioners domestically, the 6816D Chinese (without air conditioner accompaniment, only voice control of lights, supports RGB lighting), the 7803A16 English (full code library) voice control supports approximately 1300 types of air conditioners overseas, the 6816D8 Chinese (full code library) voice control supports approximately 100 types of air conditioners domestically, and so on. Of course, other main control chips with similar functions, i.e., those with built-in flash boot program functionality, can also be used.
[0027] The remote control circuit adopts an infrared remote control circuit, including an infrared transmitting circuit and an infrared receiving circuit. The infrared transmitting circuit uses two infrared transmitters IFR1 and IFR2, which are connected in parallel and are both IFR_LED. The infrared transmitting circuit is connected to pin 10 of the main control chip U1.
[0028] The infrared receiving circuit uses an IRM infrared receiver, model LF0038, to receive remote control signals from the controlled electrical appliances. The infrared receiving circuit is connected to pin 5 of the main control chip U1.
[0029] The power supply circuit includes a power input circuit J1 and a battery module BATT. The power input circuit J1 forms the power socket for the whole machine, and the battery module BATT forms the power supply interface for the battery box. The battery module BATT and the power input circuit J1 form a dual power supply system to improve the portability, stability and economy of the product.
[0030] It also includes a power selection module, which is equipped with a diode D3. The diode D3 allows the voltage of the power socket to be reversed to charge the battery module BATT.
[0031] The power input circuit J1 uses a TYPE-C interface (or other interfaces such as MICRO-USB).
[0032] The audio output module uses an FM8002A amplifier to drive the SPK speaker.
[0033] Alternatively, the remote control circuit can also use a Bluetooth module or a WIFI module to achieve remote control. Of course, this requires the appliance to also have a corresponding Bluetooth or WIFI module.
[0034] The microphone (MIC) picks up the user's voice commands and converts them into electrical signals, which are then sent to the main control chip U1. The main control chip U1 decodes the electrical signals sent by the microphone to identify the user's commands and perform the following two types of operations:
[0035] 1. Control the LED to turn on or off;
[0036] 2. Send infrared control signals to electrical appliances such as air conditioners to realize the normal operation of the air conditioner, including but not limited to: turning on, turning off, adjusting temperature, adjusting fan speed, turning on / off cooling, turning on / off heating, turning on / off auxiliary heating, etc.
[0037] The speaker SPK is used for the following purposes: greetings, instructing users on how to operate, indicating the currently received user instruction, indicating the result of the operation on the current user instruction, etc.
[0038] Infrared transmitters IFR1 and IFR2 are used to transmit infrared signals to appliances such as air conditioners, while infrared receivers IRM are used to receive remote control signals from the controlled appliances such as air conditioners. This allows the main control chip U1 to quickly identify the brand and infrared command set of the appliances, enabling it to accurately convert user voice commands into infrared remote control signals that the appliances can recognize. These signals are then transmitted to the appliances via the infrared transmitters, thus enabling voice command control of the appliances.
[0039] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.
Claims
1. An intelligent sound control lamp control circuit, comprising a master control circuit, a lighting circuit, a sound control module, an audio output module, a remote control circuit and a power supply circuit; the lighting circuit, the sound control module, the audio output module and the remote control circuit are connected with the master control circuit respectively, and the power supply circuit provides power supply for each circuit module, characterized in that: The main control circuit adopts the main control chip U1 with a flash starting program function, the microphone MIC of the sound control module is connected with the MIC pin and the MIC_BAIS pin of the main control chip U1, the program burning module is connected with the USBDP / PA4 pin and the USB_DM / PC3 pin of the main control chip U1, and the program upgrade of the main control chip U1 is realized through the program burning module.
2. The intelligent sound control lamp control circuit according to claim 1, wherein: The model of the main control chip U1 is BA6816, the 2nd pin, the 9th pin and the 12th pin of the main control chip U1 are connected with the lighting circuit, the lighting circuit adopts the LED light emitting module of RGB, and the audio output module is connected with the 1st pin of the main control chip U1.
3. The intelligent sound control lamp control circuit according to claim 2, wherein: The model of the main control chip U1 is 7803A16, 6816D8, 6824D, 6816D, 7803A16 or 6816D8.
4. The intelligent sound control lamp control circuit according to claim 2, wherein: The remote control circuit adopts the infrared remote control circuit, including the infrared emission circuit and the infrared receiving circuit, the infrared emission circuit adopts two infrared emitters IFR1 and IFR2, the two infrared emitters IFR1 and IFR2 adopt the parallel connection structure, and both adopt IFR_LED, and the infrared emission circuit is connected with the 10th pin of the main control chip U1.
5. The intelligent sound control lamp control circuit according to claim 4, wherein: The infrared receiving circuit adopts the IRM infrared receiver with the model of LF0038, which is used for receiving the remote control signals of the controlled electric appliance, and the infrared receiving circuit is connected with the 5th pin of the main control chip U1.
6. The intelligent sound control lamp control circuit according to claim 2, wherein: The power supply circuit includes the power input circuit J1 and the battery module BATT, the power input circuit J1 constitutes the power socket of the whole machine, the battery module BATT constitutes the power supply interface of the battery box, and the battery module BATT and the power input circuit J1 constitute a double power supply system.
7. The intelligent sound control lamp control circuit according to claim 6, wherein: The power supply selection module is also included, the power supply selection module is provided with a diode D3, and the voltage of the power socket is reversed to charge the battery module BATT through the diode D3.
8. The intelligent sound control lamp control circuit according to claim 6, wherein: The power input circuit J1 adopts the TYPE-C interface or the MICRO-USB interface.
9. The intelligent sound control lamp control circuit according to claim 1, wherein: The model of the power amplifier of the audio output module is FM8002A.
10. The intelligent sound control lamp control circuit according to claim 1, wherein: The remote control circuit adopts the Bluetooth module or the WIFI module.
Citation Information
Patent Citations
Intelligent voice night lamp
CN212460808U