CN-121987916-A - Multimode light supplementing and sleep aiding control circuit, device, system and control method integrating acousto-optic sniffing

CN121987916ACN 121987916 ACN121987916 ACN 121987916ACN-121987916-A

Abstract

The invention discloses a multimode light supplementing and sleep aiding control circuit, device and system integrating acousto-optic sniffing and a control method, and relates to the technical field of electronic circuits. The circuit comprises a main control module, a light supplementing module, a sleep-aiding light module, an environment sensing module, a fragrance module, a power amplifier loudspeaker module and the like, and the light with low blue light, soft and adjustable brightness is output through the light supplementing module, so that the problems of over-strong blue light, stroboscopic screen and reading fatigue when the intelligent terminal is used are solved. The sleep-aiding light module can be used for adjusting to warm color temperature, relaxing emotion and not damaging illumination secreted by melatonin. The environment sensing module collects the information of the ambient light and the approaching distance in real time, so that the equipment can intelligently adjust the light supplementing brightness and the sleep-aiding lamp mode, the aromatherapy module adopts closed-loop control of thermal fumigation, constant-temperature adjustment is realized through temperature sampling, volatilization of sleep-aiding fragrance is more stable and safer, the power amplifier loudspeaker module provides stable output for white noise, natural sound and rhythmic breathing guiding sound, and reliable acoustic assistance is provided for sleep adjustment.

Inventors

LIN JINTIAN
CAO XIAOBING
CHEN LEI
Cao Bangshun

Assignees

广东旭宇光电有限公司
旭宇光电（深圳）股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260130

Claims (10)

1. A multimode light supplementing and sleep aiding control circuit integrated with acousto-optic sniffing, the circuit comprising: The intelligent terminal comprises a main control module, a light supplementing module, a sleep-aiding light module, an environment sensing module, an aromatherapy module, a power amplification loudspeaker module and a charging interface module, wherein the light supplementing module, the sleep-aiding light module, the environment sensing module, the aromatherapy module, the power amplification loudspeaker module and the charging interface module are connected with the main control module, the main control module is used for controlling and managing all the modules connected with the main control module, the light supplementing module drives a first LED to emit color light to provide controllable light supplementing for the intelligent terminal with a screen through pulse width modulation, the sleep-aiding light module drives a second LED to emit second color light to provide controllable sleep-aiding light through pulse width modulation, the environment sensing module provides input for automatic brightness and approach detection through collecting environment light and approach distance data, the closed-loop constant-temperature fumigation is realized through power adjustment and temperature sampling of an aromatherapy load, the power amplification loudspeaker module is used for providing data line connection and charging input through amplifying an audio signal from the main control module and driving a loudspeaker.
2. The integrated acousto-optic sniffing multimode light supplementing and sleep aiding control circuit according to claim 1, wherein the main control module comprises a main control chip and peripheral devices thereof, wherein the main control chip is AC6966B, a VBAT pin of the main control chip is connected with a battery end to achieve power input, filtering is conducted through a VDDIO pin and a BT_AVDD pin to achieve stable power supply, the main control chip is connected with a light supplementing module through a PC2 pin and/or a PA3 pin, the main control module is connected with a sleep aiding light module through a PC3 pin and a PC4 pin, a PC5 pin is connected with an aroma module, an I2C bus is formed by taking a PB7 pin and a PB6 pin as SDA interfaces and SCL interfaces respectively and is connected with an environment sensing module, audio signals are output to the power amplifying speaker module through a DAC_L pin and a DAC_R pin, the PB4 pin and the PA2 pin are respectively taken as control ports of power amplifying enabling and silencing time sequences, data communication and input identification are achieved through a USBDP pin and a USBDM pin and a charging interface module, bluetooth receiving and transmitting and receiving of the Bluetooth is achieved through a BT_RF pin and a matching network to achieve base station, and the main control chip provides a reference clock for the main control chip.
3. The integrated acousto-optic sniffing multimode light supplementing and sleep aiding control circuit according to claim 2, wherein the light supplementing module at least comprises a first switch tube and a plurality of first LEDs emitting light of a first color, the first LEDs form a parallel structure, one end of each first LED is connected to a power end through a first resistor, the other end of each first LED is connected to a drain electrode of the corresponding first switch tube, a source electrode of each first switch tube is grounded, a grid electrode of each first switch tube is connected to a PC2 or PA3 pin of the main control module, and the first switch tubes are grounded through a second resistor.
4. The integrated acousto-optic sniffing multimode light supplementing and sleep aiding control circuit according to claim 2, wherein the sleep aiding and light supplementing module at least comprises a second switch tube and a plurality of second LEDs emitting light of a second color, the second LEDs form a parallel structure, one end of each second LED is connected to a power end through a third resistor, the other end of each second LED is connected to a drain electrode of the second switch tube, a source electrode of each second switch tube is grounded, a grid electrode of each second switch tube is connected to a PC3 or PC4 pin of the main control module, and the second switch tube is grounded through a fourth resistor.
5. The integrated acousto-optic sniffing multi-mode light supplementing and sleep aiding control circuit according to claim 2, wherein the environment sensing module comprises an environment light sensor chip LTR-553ALS-WA, a fifth resistor and a sixth resistor, wherein an SDA pin and an SCL pin of the environment light sensor chip are connected to a VDDIO pin of a main control module through a fifth resistor R62 and a sixth resistor R63, the SDA pin and the SCL pin are respectively connected to an SDA interface and an SCL interface of the main control module to form I2C communication, and an LEDA pin and an LEDK pin of the environment light sensor chip are connected to a power end and are used for being matched with internal and external infrared emission and driving paths to achieve proximity and distance detection.
6. The multi-mode light supplementing and sleep aiding control circuit integrated with acousto-optic sniffing according to claim 2, wherein the aromatherapy module comprises an aromatherapy unit and a temperature detection unit, wherein in the aromatherapy unit, a power end is connected with a first end of an aromatherapy load interface after being connected in series with a seventh resistor through a recoverable fuse, a second end of the aromatherapy load interface is connected with a drain electrode of a fourth switching tube, a source electrode of the fourth switching tube is grounded, a grid electrode of the fourth switching tube is connected with a PC5 pin of the main control module and is grounded through an eighth resistor, and in the temperature detection unit, a power end is connected with a temperature sampling node through a ninth resistor, and the temperature sampling node is connected with a PA0 pin of the main control module and is grounded through a thermistor.
7. The integrated acousto-optic sniffing multimode light supplementing and sleep aiding control circuit according to claim 2, wherein the power amplification speaker module comprises a power amplification chip CS5250E and peripheral devices thereof, wherein a PVBAT pin of the power amplification chip is connected with a battery power supply and is connected with a high-capacity and high-frequency decoupling filter through a first capacitor and a second capacitor respectively, a third capacitor is connected between a CP pin and a CN pin of the power amplification chip to form an internal charge pump or a bias branch, a control pin CTBL of the power amplification chip is connected with an output control node, the output control node is also connected with a PA_OUT pin of the main control module, the output control node is connected with a PA_MUTE pin of the main control module through a tenth resistor and is pulled down to the ground through an eleventh resistor to limit a default state, an INN pin of the power amplification chip is connected with a DAC_L pin of the main control module through a twelfth resistor and a fourth capacitor, an INP of the power amplification chip is connected with a DAC_L pin of the main control module through a thirteenth resistor and a fifth capacitor to realize the direct differential connection between the INP pin of the power amplification chip and the main control module and a DAC_OUT pin of the main control module, and the output control node is connected with a DC output port of the power amplification chip to a seventh interface of the power amplification chip, and the output port of the power amplification speaker is connected with a DC interface is connected with a DC port of the power amplifier.
8. The integrated acousto-optic sniffing multimode light supplementing and sleeping aiding device is characterized by comprising the integrated acousto-optic sniffing multimode light supplementing and sleeping aiding control circuit as claimed in any one of claims 1-7, a shell structure for packaging the integrated acousto-optic sniffing multimode light supplementing and sleeping aiding control circuit and a fixed structure capable of arranging the integrated acousto-optic sniffing multimode light supplementing and sleeping aiding device on a screen intelligent terminal.
9. The integrated acousto-optic sniffing multimode light supplementing and sleeping aiding system is characterized by comprising the integrated acousto-optic sniffing multimode light supplementing and sleeping aiding device and a screen-attached intelligent terminal, wherein the integrated acousto-optic sniffing multimode light supplementing and sleeping aiding device and the screen-attached intelligent terminal can be connected in a wireless or wired mode to achieve information interaction, and the screen-attached intelligent terminal comprises any one of a mobile phone, a tablet computer, a game machine and an electronic book reader.
10. A multi-mode light supplementing and sleep aiding control method integrating acousto-optic sniffing, wherein the method comprises the steps of applying a circuit as claimed in any one of claims 1 to 7: driving a main control module to acquire the ambient light data and the proximity distance data acquired by an ambient sensing module, and forming a control input set based on the ambient light data and the proximity distance data; Judging that the current operation mode is a light supplementing mode or a sleep aiding mode according to the control input set, and generating a target parameter set, wherein the target parameter set at least comprises light supplementing target brightness, sleep aiding target brightness, aromatherapy target temperature, audio target volume and output priority parameters, and the output priority parameters are used for limiting the cooperative output sequence of the light supplementing module, the sleep aiding light module, the aromatherapy module and the power amplification loudspeaker module; Calculating a brightness baseline based on the ambient light data and the target parameter set, and respectively generating a first PWM signal and a second PWM signal according to the brightness baseline, wherein the first PWM signal is used for driving a light supplementing module to control the luminous intensity of a first LED, and the second PWM signal is used for driving a sleep-aiding light module to control the luminous intensity of a second LED; The method comprises the steps of detecting proximity based on proximity distance data, performing proximity linkage correction on a brightness baseline to update the first PWM signal and the second PWM signal, wherein when the proximity distance data meets preset proximity conditions, the light supplementing target brightness is improved and/or the sleep aiding target brightness is reduced and the first PWM signal and the second PWM signal are updated; Obtaining a temperature sampling value output by a temperature detection unit in an aromatherapy module, comparing the temperature sampling value with the aromatherapy target temperature, calculating an aromatherapy power adjustment amount according to a comparison result, generating a third PWM signal, carrying out power adjustment on an aromatherapy load in the aromatherapy module according to the third PWM signal, and maintaining the third PWM signal in a steady-state adjustment interval when the temperature sampling value meets a target deviation condition; Generating an audio playing strategy according to the target parameter set, outputting an audio signal to a power amplification speaker module, and simultaneously generating and outputting a power amplification enabling signal and a mute control signal, wherein the power amplification enabling signal is used for controlling the working state of the power amplification speaker module, the mute control signal is used for controlling the mute state of the power amplification speaker module, and the power amplification enabling signal and the mute control signal are switched according to a preset time sequence; The consistency check is carried out on the first PWM signal, the second PWM signal, the third PWM signal and the audio target volume according to the output priority parameter, when the fact that the light supplementing module and the sleep-aiding light module simultaneously meet a high output condition or the aromatherapy module meets a high power condition and the power amplification speaker module meets a high volume condition is detected, the main control module redistributes a target parameter set and synchronously corrects the first PWM signal, the second PWM signal, the third PWM signal, the power amplification enabling signal and the mute control signal to obtain a cooperative output combination matched with a current running mode; When the temperature sampling value exceeds a preset safety threshold value or the power supply input identification result indicates power supply abnormality, the main control module is driven to enter a protection flow, the third PWM signal is reduced or closed, the first PWM signal and the second PWM signal are degraded to a preset duty ratio interval, the audio playing strategy is adjusted, the power amplifier enabling signal and the mute control signal are updated, and when the abnormality is relieved, the main control module is driven to regenerate a target parameter set based on the control input set and correspondingly restore each output signal.

Description

Multimode light supplementing and sleep aiding control circuit, device, system and control method integrating acousto-optic sniffing Technical Field The invention relates to the technical field of electronic circuits, in particular to a multimode light supplementing and sleep aiding control circuit, device, system and control method integrating acousto-optic sniffing. Background With the popularization of intelligent terminals and the development of mobile internet, more and more people develop habits of using mobile phones, tablets or other intelligent terminals with screens before sleeping, for reading news, novels, watching short videos or performing social interactions. This high frequency night use behavior, while facilitating information acquisition and entertainment, also presents significant health concerns. First, the short-wave blue light emitted from the screen suppresses melatonin secretion, affects sleep quality, and long-term exposure may cause eye strain, dry eye, and vision deterioration. Although the traditional method for reducing the brightness of the screen or starting the night mode can reduce the blue light stimulation to a certain extent, the traditional method usually brings problems of screen flickering, color distortion and the like, but increases the visual burden, and can not fundamentally meet the eye protection requirements of users. Secondly, the light during the use of the intelligent terminal at night can not be controlled locally, indoor illumination or the brightness of the screen per se can easily influence the sleeping of the resident, social contradiction is caused, and the problem is more remarkable especially in dormitory, closing and renting rooms or family environments. In addition, the existing eye-protection lamp or night reading lamp has the defects of non-adjustable brightness, uneven light distribution, incapability of intelligently adapting to ambient light and the like, and users need to manually adjust the lamp or night reading lamp, so that the operation is inconvenient, and the personalized and scenerized eye-protection and sleep-aiding effects cannot be realized. Meanwhile, the portable equipment which can integrate the functions of environment sensing, dynamic brightness adjustment, sleep-aiding illumination, audio frequency, aromatherapy and the like is lacking in the current market, so that the user is difficult to consider eye protection, sleep-aiding and comfortable experience when using the intelligent terminal with the screen at night. Disclosure of Invention In view of the above, the embodiment of the invention provides a multimode light supplementing and sleep aiding control circuit, device, system and control method integrating acousto-optic sniffing, which are used for solving the problem that the use of an intelligent terminal at night in the prior art cannot achieve eye protection and healthy sleep. In a first aspect, an embodiment of the present invention provides a multimode light supplementing and sleep aiding control circuit integrated with acousto-optic sniffing, where the circuit includes: The intelligent terminal comprises a main control module, a light supplementing module, a sleep-aiding light module, an environment sensing module, an aromatherapy module, a power amplification loudspeaker module and a charging interface module, wherein the light supplementing module, the sleep-aiding light module, the environment sensing module, the aromatherapy module, the power amplification loudspeaker module and the charging interface module are connected with the main control module, the main control module is used for controlling and managing all the modules connected with the main control module, the light supplementing module drives a first LED to emit color light to provide controllable light supplementing for the intelligent terminal with a screen through pulse width modulation, the sleep-aiding light module drives a second LED to emit second color light to provide controllable sleep-aiding light through pulse width modulation, the environment sensing module provides input for automatic brightness and approach detection through collecting environment light and approach distance data, the closed-loop constant-temperature fumigation is realized through power adjustment and temperature sampling of an aromatherapy load, the power amplification loudspeaker module is used for providing data line connection and charging input through amplifying an audio signal from the main control module and driving a loudspeaker. The master control module comprises a master control chip and peripheral devices of the master control chip, wherein the master control chip is AC6966B, a VBAT pin of the master control chip is connected with a battery end to achieve power input, the power is connected with a decoupling capacitor through a VDDIO pin and a BT_AVDD pin to conduct filtering so as to stably supply power, the master control module is connected with a light s