CN114793480A

CN114793480A - Electronic equipment, charging seat and charging method

Info

Publication number: CN114793480A
Application number: CN202080015576.9A
Authority: CN
Inventors: 田海涛; 张奋伟; 杨学钢; 孙建杰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2022-07-26
Also published as: WO2022109837A1

Abstract

An electronic device, a charging cradle and a charging method, the electronic device (300) comprising: the power receiving port (301) is connected with a charging port (311) of a charging stand (310) and is used for receiving charging electric energy from the charging stand (310); the first processing module (302) is used for generating a charging instruction; generating a first light-emitting control signal according to the charging instruction; the first light emitting control signal is used for indicating a first target light emitting parameter; sending a first lighting control signal to a first photovoltaic module (303); the first photovoltaic module (303) receives the first lighting control signal and emits a first optical signal according to the first target lighting parameter, and the first optical signal is transmitted to the charging dock (310) and used for indicating a charging instruction. According to the method, the quick charging function of the electronic equipment is realized on the premise that an additional electric connecting terminal of the electronic equipment is not added, and the communication between the working parameters of the adapter and the charging protocol is realized by emitting and detecting optical signals, so that the quick charging function is finally realized.

Description

Electronic equipment, charging seat and charging method

Technical Field

The present disclosure relates to charging technologies of electronic devices, and in particular, to an electronic device, a charging dock and a charging method.

Background

The existing electronic equipment, such as wearable equipment like smart watches, mostly adopts a non-detachable lithium battery to supply power. When the lithium battery is charged, the quick charging function can be used to accelerate the charging speed. However, the current scheme for charging some electronic devices is still general charging, which results in very long charging time for these electronic devices. In order to solve the above problems, a rapid charging technology has been devised.

In order to realize the quick charging function of the electronic device, a quick charging protocol is required to be adopted for transmission between the electronic device and the adapter, so that the output parameter of the charger is adjusted, the output power of the charger is improved, but if the electronic device is required to send a quick charging protocol signal to the charger, an additional electric connecting terminal is required to be added to the electronic device. However, some current electronic devices are limited by hardware architecture, and it is difficult to add an additional electrical connection terminal for sending a fast charging protocol signal at present to avoid corrosion of the electrical connection terminal, which results in that these devices cannot implement the fast charging function.

Disclosure of Invention

The application provides an electronic device, a charging seat and a charging method, which are used for realizing the quick charging function of the electronic device on the premise of not increasing additional electrical connection terminals of the electronic device.

In a first aspect, the present application provides an electronic device that may include a power receiving port, a first photovoltaic module, and a first processing module. The power receiving port is connected with a charging port of a charging seat and can be used for receiving charging electric energy from the charging seat; the first processing module can be used for generating a charging instruction, wherein the charging instruction is used for indicating the working parameters of the adapter, and the adapter is used for providing the charging electric energy to the power receiving port through the charging seat; generating a first light-emitting control signal according to the charging instruction; the first light-emitting control signal is used for indicating a first target light-emitting parameter and sending the first light-emitting control signal to the first photoelectric module; the first photovoltaic module may receive a first lighting control signal and emit a first light signal according to a first target lighting parameter, the first light signal being transmitted to the charging dock and indicating the charging instruction.

In the above design, after determining that the power receiving port is connected to the charging port of the charging dock, the first processing module of the electronic device generates a charging instruction, and controls the first optoelectronic module to send the first optical signal by using the first light-emitting control signal, so that the second optoelectronic module of the charging dock determines the charging power after receiving the first optical signal. By adopting the mode, the interaction of the working parameters or the charging protocol of the adapter between the electronic equipment and the adapter is realized, and finally, the quick charging function is realized. In addition, the electronic equipment and the charging seat of the application also save an additional data line of a transmission protocol, save cost, avoid the adjustment of a hardware framework of the electronic equipment and also avoid the problem of corrosion of a charging connecting terminal of the electronic equipment. In addition, this design can be applicable to wearable equipment, such as intelligent wrist-watch, intelligent bracelet, GT table etc. and have equipment of PPG function etc..

In one possible design, the first target lighting parameter includes at least one of: flicker frequency, or illumination. In this way, different types of lighting parameters can be used to represent the operating parameters of different adapters.

In one possible design, the operating parameters of the adapter include at least one of: charging voltage, charging current, adapter operating temperature range, or charging power. Therefore, the adapter is convenient for adjusting the charging voltage, the charging current or the charging power, and the electronic equipment is quickly charged.

In one possible design, the first processing module may further generate a charging instruction, where the charging instruction is used to instruct a charging protocol of the adapter; generating a first light-emitting control signal according to the charging instruction; the first light emitting control signal is used for indicating a first target light emitting parameter; sending a first light emitting control signal to a first photoelectric module; the first photovoltaic module may also receive the first lighting control signal and emit a first light signal according to the first target lighting parameter.

In the above design, after determining that the power receiving port is connected to the charging port of the charging cradle, the first processing module of the electronic device generates a charging instruction, where the charging instruction indicates a charging protocol, and instructs, through the first light-emitting control signal, the first photovoltaic module to emit a first light signal according to a first target light-emitting parameter corresponding to the charging protocol, and when receiving the first light signal, the charging cradle determines the charging protocol, so that the charging cradle communicates with the adapter using the charging protocol, and after the charging cradle communicates with the adapter protocol, the adapter charges with the charging power indicated by the charging protocol. In addition, the charging instruction may be a part of the content of the charging protocol or identification information of the charging protocol, and may also be a step of an authentication process in the interactive transmission charging protocol or a step of regulating voltage and current after protocol authentication. Therefore, the electronic equipment can transmit the charging protocol to the adapter through the first optical signal, so that the quick charging function of the electronic equipment is realized, and the technical bias is overcome.

In one possible design, the charging protocol may include any one or any number of the following: QC 1.0-QC 5.0, USB PD, FCP, PE, VOOC/DASH and SCP. In this manner, the electronic device can transmit optical signals to a cradle coupled with adapters that support various types of charging protocols, such that the electronic device receives a charge of the adapters that support various types of charging protocols.

In a possible design, if the electronic device further includes a display screen, the first processing module may further control the display screen to display a working parameter or a charging protocol selection interface of the adapter; responding to the selection operation of a user, and generating the charging instruction; therefore, the problem that the charging power of the electronic equipment is only related to the connected adapter and a user cannot set the charging power autonomously in the existing scene can be avoided. By adopting the mode, a user can select the free working parameters of the adapter on the display interface of the electronic equipment, and after the working parameters are selected, the first processing module sends the working parameters selected by the user to the charging seat, and the charging seat informs the adapter so that the adapter can be charged according to the working parameters selected by the user. In addition, in another possible design, the first processing module may generate the charging instruction according to a set rule. Wherein, the rule set includes: the first processing module generates a charging instruction when the electric quantity of the electronic equipment is lower than a set threshold value; or, the user can set the time for the next use on the electronic device, the first processing module determines the time difference from the current time according to the time for the next use, and generates the charging instruction according to the time difference, so that the user experience is good. Or, the first processing module generates a charging instruction in a set time period, and sets different working parameters of the adapter according to different time periods, so that the charging speed can be increased, and the service life of the battery can be protected.

In a possible design, the first optoelectronic module may further receive a second optical signal sent by the charging dock, and determine a second target lighting parameter of the second optical signal; sending a first notification message to the first processing module, wherein the first notification message is used for notifying the first processing module of the second target lighting parameter; the first processing module may further determine the second target lighting parameter according to the first notification message after receiving the first notification message; and determining feedback information corresponding to the second target lighting parameter, wherein the feedback information includes at least one of the following: a temperature of the adapter, or response information indicating whether the adapter executes the charging instruction. Because, in the process that the adapter charges the electronic equipment, there is the electric energy loss in the switched capacitor circuit in the adapter, and this electric energy loss can turn into heat energy, when heat energy exceeded the radiating capacity scope that can bear of adapter, then other hardware in the adapter can appear the phenomenon of generating heat even damage. By adopting the design, the temperature of the adapter can be timely sent to the electronic equipment, when the temperature of the adapter is too high, the first processing module sends the indication message of disconnecting the charging port of the charging seat to the power receiving port, so that the electronic equipment does not receive the charging of the adapter any more, and the safety of the adapter and the electronic equipment is ensured. In addition, the electronic device can also receive response information sent by the adapter through the charging seat in time, and can readjust the size of the charging power when the adapter cannot be charged with the charging power indicated by the electronic device, so that the charging speed of the electronic device is improved as much as possible.

In one possible design, the first photo-electric module is a photoplethysmography (PPG) sensor. So, wearable equipment can carry out adapter working parameter or the transmission of the agreement of charging through PPG sensor to the luminous mode of PPG sensor, realizes wearable equipment and fills the function soon, and does not need unnecessary data line, thereby avoids carrying out the modulation to wearable equipment's hardware architecture, also avoids the connector terminal of charging line to corrode the scheduling problem. The charging speed required by wearable equipment can be met, the cost is low, and the safety performance is high.

In a second aspect, the present application provides a charging dock, the charging dock comprising: the device comprises a charging port, an interface, a second photoelectric module and a second processing module. Wherein the interface may be coupled with an adapter for receiving charging power from the adapter; the charging port can be connected with a power receiving port of the electronic equipment and provides charging electric energy for the electronic equipment; the second photoelectric module can receive a first optical signal sent by the electronic equipment and determine a first target light-emitting parameter of the first optical signal; sending a second notification message to the second processing module, wherein the second notification message is used for notifying the first target lighting parameter; the second processing module may receive the second notification message, determine the first target lighting parameter according to the second notification message, and determine a charging instruction corresponding to the first target lighting parameter, where the charging instruction is used to indicate a working parameter or a charging protocol of the adapter; the interface is also used for sending a charging instruction to the adapter.

In one possible design, the first target lighting parameter includes at least one of: flicker frequency, or illumination.

In one possible design, the operating parameters of the adapter include at least one of: charging voltage, charging current, adapter operating temperature range, or charging power.

In one possible design, the second processing module may further receive feedback information sent by the adapter, where the feedback information includes at least one of: temperature of the adapter, or response information indicating whether the adapter is executing a charging instruction; generating a second light-emitting control signal according to the feedback information; the second light-emitting control signal is used for indicating a second target light-emitting parameter corresponding to the feedback information; sending the second light emitting control signal to the second photovoltaic module; emitting a second light signal according to the second target lighting parameter, the second light signal being transmitted to the electronic device and used for indicating the feedback information.

In a third aspect, the present application provides a charging method applied to the electronic device of the first aspect of the present application, the method including: generating a charging instruction, wherein the charging instruction is used for indicating the working parameters or the charging protocol of the adapter; generating a first light-emitting control signal according to the charging instruction; and sending a first light signal according to a first target light-emitting parameter indicated by the first light-emitting control signal, wherein the first light signal is transmitted to the charging seat and is used for indicating the charging instruction.

In a fourth aspect, the present application provides a charging method applied to the charging dock of the second aspect of the present application, the method including: receiving a first optical signal sent by electronic equipment, and determining a first target light-emitting parameter of the first optical signal; determining a charging instruction corresponding to the first target light-emitting parameter, wherein the charging instruction is used for indicating working parameters or a charging protocol of the adapter; and sending the charging instruction to the adapter. The beneficial effects of each possible design in the second to fourth aspects of the present application may refer to the first aspect, which is not described herein again.

Drawings

FIG. 1A is a schematic diagram of a charging cradle and an electronic device;

FIG. 1B is a schematic diagram of an electronic device;

fig. 1C is a working schematic diagram of a PPG sensor;

FIG. 2 is a schematic diagram of a charging cradle;

FIG. 3A is a block diagram of an electronic device and a charging dock;

FIG. 3B is a schematic diagram illustrating a process of transmitting adapter operating parameters to the adapter via the cradle by the electronic device;

FIG. 3C is a diagram illustrating a user selecting different charging power options on a display of an electronic device;

FIG. 3D is a diagram illustrating a user entering a next usage time on a display screen of an electronic device;

FIG. 4 is a schematic flow chart illustrating the process of the electronic device transmitting a charging protocol to the adaptor via the cradle;

FIG. 5 is a schematic diagram illustrating a process of the adapter transmitting feedback information to the electronic device via the cradle;

FIG. 6 is a schematic diagram of a smart watch and a charging cradle;

fig. 7 is a schematic diagram of a charging device.

Detailed Description

The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the following embodiments of the present application. In the following, some terms referred to in the embodiments of the present application are explained so as to be easily understood by those skilled in the art.

(1) Photoplethysmography (PPG) is an optical technique derived from obtaining cardiac function information without measuring bioelectric signals, and belongs to a non-invasive measurement. Each heart beat causes blood to fill the soft tissue, causing the skin to become engorged with blood, which changes the intensity of light passing through the tissue, and measures the relative function of the heart by measuring the intensity of the emitted light. The PPG has a transmission type and an emission type, and a wearable device has a multipurpose emission type, and an optical system thereof mainly comprises a light source (light emitting diode, LED) and a Photodetector (PD). The present embodiment utilizes a PPG sensor, and employs a PPG measurement technique similar to those in the biological or medical fields to achieve the detection of the optical signal.

(2) The pogo pin structure is a spring type probe formed by riveting three basic components, namely a needle shaft, a spring and a needle tube, through a precision instrument, and a precision spring structure is arranged in the pogo pin structure. The surface coating of the pogo pin is generally subjected to gold plating treatment so as to better improve the anti-corrosion function, mechanical property, electrical property and the like of the pogo pin. The needle point is provided with a sharp needle, a grabbing needle, a round-head needle, a knife-shaped needle and the like. The pogo pin structure is generally applied to precise connection in electronic products such as mobile phones, wearable equipment, communication, automobiles, medical treatment, aerospace and the like, and can improve the corrosion resistance, stability and durability of the connectors. Since pogo pin is a very fine probe, the weight and the volume of the connector can be reduced when the pogo pin is applied to a precision connector, and the connector can be made more fine and beautiful.

(3) An adapter, also called an external power supply, is a supply voltage conversion device for small portable electronic equipment and electronic appliances. Common adapters include: the adapter matched with small electronic products such as mobile phones, liquid crystal displays, notebook computers and the like can also comprise a quick charging chip which can convert voltages of 5V/9V/12V and the like of the adapter into voltages of batteries and the like, and simultaneously, the batteries can be charged accurately and controllably according to required charging current.

(4) Battery charging specification (BC) 1.2 protocol, wherein the BC1.2 protocol specifies that the USB interface mainly exists in the following three types: a Standard Downlink Port (SDP), a Dedicated Charging Port (DCP), and a Charging Downlink Port (CDP). At present, the USB interfaces of most electronic devices (such as smart phones and tablet computers) are SDP, and the SDP protocol specifies that the maximum charging current is 500mA, so the SDP cannot be used for large-current charging (fast charging). DCPs can provide larger charging currents, and DCPs are typically used in dedicated chargers. The CDP also supports large current charging, but the CDP can be mainly used as a port of equipment such as a computer and a HUB (HUB), and the charging current can be 1.5-5A.

The embodiment of the present application relates to at least one, including one or more; wherein a plurality means greater than or equal to two. In addition, it is to be understood that the terms first, second, etc. in the description of the present application are used for distinguishing between the descriptions and not necessarily for describing a sequential or chronological order.

The terminology used in the following examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of this application and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, such as "one or more", unless the context clearly indicates otherwise. It should also be understood that in the embodiments of the present application, "one or more" means one, two or more; "and/or" describes the association relationship of the associated objects, indicating that three relationships may exist; for example, a and/or B, may represent: a alone, both A and B, and B alone, where A, B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

It should be noted that "coupled" in this embodiment refers to an energy transfer relationship, for example, a is coupled with B, and refers to that a and B can transfer energy or data, wherein there are many possibilities for specific forms of energy, such as electric energy, magnetic field potential energy, and the like. When electric energy can be transmitted between a and B, a and B may be electrically connected directly or indirectly via another conductor or circuit element, as reflected in the circuit connection relationship. When the magnetic field potential energy can be transmitted between the a and the B, the magnetic field potential energy is reflected on a circuit connection relationship, that is, electromagnetic induction can occur between the a and the B, so that the magnetic field potential energy can be transmitted from the a to the B.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

The electronic device provided by the embodiment of the application can be a wearable electronic device, such as a watch, a bracelet, an earphone, a helmet (such as a Virtual Reality (VR) helmet), and the like, and can also be a non-wearable electronic device, such as a portable electronic device with a PPG detection function, such as a mobile phone, a tablet computer, a notebook computer, and the like. Exemplary embodiments of the portable electronic device include, but are not limited to, a mount

Or other operating system. It should be understood that the electronic device may also be not a portable electronic device, but a desktop computer or the like capable of performing PPG detection, or other electronic devices having an optoelectronic module, and the embodiment of the present invention is not limited thereto.

Due to the limitation of hardware architecture and the avoidance of corrosion caused by adding too many electrical connection ports, some electronic devices are still charged by transmission charging. Fig. 1A is a schematic diagram of an electronic device using a conventional charging method, in which an adapter charges the electronic device through a charging seat, and the adapter cannot adjust its operating parameters during the charging process. By adopting the traditional charging mode, the electronic equipment and the adapter cannot perform message interaction of the working parameters or the charging protocol of the adapter. Therefore, the electronic devices cannot control the adapter, the output power of the adapter cannot be dynamically adjusted, and the output voltage of the adapter is the default voltage (5V), which results in a very long charging time of the electronic devices.

In order to accelerate the charging speed, the application provides the electronic equipment and the charging seat, and the quick charging function of the electronic equipment can be realized on the premise that the additional electric connecting terminal of the electronic equipment is not increased. The following describes the embodiments of the present application in detail with reference to the drawings.

Fig. 1B shows a schematic structural diagram of an electronic device provided in an embodiment of the present application. Referring to fig. 1B, the electronic device 100 may include an input unit 101, an output unit 102, a processor 103, and a memory 104. The functions of the respective components in the electronic apparatus 100 will be described below.

The input unit 101 may detect various types of input signals (may be simply referred to as input) and the output unit 102 may provide various types of output information (may be simply referred to as output). The processor 103 may receive an input signal from the input unit 101 and generate output information in response to the input signal, which is output through the output unit 102.

Among them, the input unit 101 may detect various types of input signals and transmit the detected input signals to the processor 103. The input unit 101 may include any component or assembly capable of detecting an input signal, and for example, the input unit 101 may include a photovoltaic module 101A, a pressure sensor 101B, a Bio-impedance (Bio-z) sensor 101C, a capacitance sensor 101D, an acceleration sensor 101E, and the like.

It should be understood that fig. 1B is merely an example of a few sensors, and in practical applications, the input unit 101 in the electronic device 100 may also include more or fewer devices. For example, the input unit 101 further includes at least one of the following items: an audio sensor (e.g., a microphone), an optical or visual sensor (e.g., a camera, a visible light sensor, or an invisible light sensor), a proximity light sensor, a touch sensor, a mechanical component (e.g., a button or a key, etc.), a vibration sensor, a motion sensor (which may also be referred to as an inertial sensor, such as a gyroscope, an accelerometer, or a velocity sensor, etc.), a position sensor (e.g., a Global Positioning System (GPS)), a temperature sensor, or other components having the same or similar functions in place of the above-listed sensors, etc., and the embodiments of the present application are not limited thereto.

In some scenarios, the optoelectronic module 101A may include a light emitting component (e.g., a photodiode) and a light receiving component (e.g., a light detecting sensor). Wherein the light emitting part is configured to emit a light signal, and the light receiving part is configured to detect a light signal outside the electronic device 100 and determine a flicker frequency and an illuminance of the light signal.

In other scenarios, when the electronic device 100 is a wearable device (e.g., a smart watch or a smart bracelet), the optoelectronic module 101A may also be a PPG sensor. The PPG sensor is particularly used for detecting the heart rate, i.e. for detecting the number of heart beats of the user per unit time (within one minute).

Fig. 1C is a schematic diagram of the operating principle of the PPG sensor. The PPG sensor may convert an electrical signal into an optical signal, irradiate the optical signal to a target object by the light emitting part, and receive the optical signal reflected by the target object by the light receiving part to detect the target object. Taking the target object as a human body (such as a blood vessel), the optical signal is reflected/refracted in the human body, and the reflected/refracted light is received by the light receiving component to obtain a reflected optical signal. After each heartbeat, arterial blood fills the soft tissue causing the skin to become engorged with blood, which causes the light transmittance of the blood vessels to change, so that the emitted/refracted light changes, and eventually the light signal detected by the PPG sensor also changes. The light emitting part on the PPG sensor may, after receiving the reflected/refracted light, record the number of times or illuminance of the received reflected/refracted light, thereby finally determining the heart rate of the user.

In the embodiment of the present application, the optoelectronic module 101A may emit light signals with different illumination intensities and/or different flashing frequencies through the light emitting component to realize transmission of different messages/data. For example, the electronic device 100 controls the optoelectronic module 101A to emit light signals with different illumination intensities or different flashing frequencies to represent different charging powers, that is, the electronic device 100 sends charging instructions indicating different operating parameters of the adapter to the charging dock in the form of light signals. For another example, the photovoltaic module 101A in the electronic device 100 may detect the illuminance and/or the flicker frequency of the light signal emitted by another device, and send the detected illuminance and/or the detected flicker frequency to the processor 103, so that the processor 103 determines the operating parameter corresponding to the illuminance and/or the flicker frequency. The charging base may be in the form of a casing or a box, and is used for placing the electronic device, and the specific form of the charging base is not limited in this embodiment. In one implementation, the electronic device is a wearable device, such as a headset, and the charging dock is a box in which the headset is placed.

In some embodiments, the output unit 102 may provide various types of output signals. For example, the output unit 102 may receive an output instruction of the processor 103 and provide an output signal corresponding to the output instruction. The output unit 102 may include any suitable components or assemblies for providing an output. For example, the output unit 102 may include audio output components (e.g., speakers), visual output components (e.g., light emitting diodes, display screens), tactile output components, communication components (e.g., wired or wireless communication modules), and so forth.

When the electronic device 100 has a display screen, the display screen may be a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-o led, a quantum dot light-emitting diode (QLED), or the like. In some embodiments, a touch sensor may be disposed in the display screen, so as to form a touch screen, which is not limited in this application. The touch sensor is used to detect a touch operation applied thereto or nearby. The touch sensor may communicate the detected touch operation to the processor 103 to determine the event type of the touch.

When the electronic device 100 has a communication section, the communication section may implement a communication function using an antenna, a wireless communication module, or a mobile communication module. The antenna may be used for transmitting and receiving electromagnetic wave signals, and the mobile communication module may provide a solution including 2G/3G/4G/5G wireless communication applied to the electronic device 100. The wireless communication module may provide solutions for wireless communication applied to the electronic device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The mobile communication module may also be coupled with an antenna. For example, the mobile communication module may receive an electromagnetic wave from an antenna, filter, amplify, etc. the received electromagnetic wave to obtain an electrical signal, and transmit the electrical signal to the processor 103 for processing (e.g., the processor 103 determines whether to provide a corresponding output in response to the electrical signal). The mobile communication module can also amplify the signal processed by the processor 103, and convert the signal into electromagnetic wave to radiate the electromagnetic wave through the antenna. For another example, the wireless communication module may be coupled to an antenna, and the wireless communication module may receive the electromagnetic wave from the antenna, filter, amplify, and transmit the received electromagnetic wave to the processor 103 for processing. The wireless communication module can also amplify the signals processed by the processor 103 and convert the signals into electromagnetic waves through the antenna to radiate the electromagnetic waves.

It should be noted that, in practical applications, some components may have both input function and output function. For example, the optoelectronic module 101A can serve as the output unit 102 to emit an optical signal to the outside, and also as the input unit 101 to detect the flicker frequency and the illumination of an external optical signal. For example, the touch screen may be used as the input unit 101 to detect a touch operation of a user and transmit the detected touch operation to the processor 103, while the output unit 102 is used to display a user interface. For example, the communication unit may be configured to transmit an electromagnetic wave signal to the outside as the output unit 102, or may be configured to obtain an electric signal by performing processing such as filtering and amplification on a received electromagnetic wave as the input unit 101.

Processor 103 may include one or more processing units, such as: the processor 103 may include an Application Processor (AP), a modem processor, a Graphics Processor (GPU), an Image Signal Processor (ISP), a controller, a memory, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), among others. Wherein, the different processing units may be independent devices or may be integrated in one or more processors. The controller may be, among other things, a neural center and a command center of the electronic device 100. The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution. In other embodiments, a memory may also be provided in processor 103 for storing instructions and data. In some embodiments, the memory in the processor 103 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 103. If the processor 103 needs to reuse the instruction or data, it can be called directly from the memory, avoiding repeated accesses, reducing the latency of the processor 103 and thus increasing the efficiency of the system. For example, the processor 103 may execute software codes/modules of the charging method provided in the embodiment of the present application to implement transmission of the charging instruction between the electronic device 100 and the adapter.

The memory 104 may be used to store computer-executable program code, which includes instructions. The memory may include a high-speed random access memory, and may further include a non-volatile memory, for example, at least one disk memory device, a flash memory device, a universal flash memory (UFS), and the like, which are not limited in this embodiment. In some embodiments, the electronic device 100 may store the operating parameter or charging protocol of the adapter in the memory 104, and transmit the operating parameter or charging protocol of the adapter in the form of an optical signal to another device (e.g., a charging cradle) through the PPG sensor 101A.

In some embodiments, the electronic device 100 may further include an electrode set, which may serve as a power receiving port 105 of the electronic device 100. Wherein each electrode set may comprise at least two electrodes. The electrode set may be disposed on an outer surface (e.g., a back or side) of the electronic device 100. For example, the power receiving port 105 can be used to connect with a charging port of a charging cradle, which in turn can receive charging power from the charging cradle. In fig. 1B, one electrode group formed by the electrode 105A and the electrode 105B is taken as an example. The electrodes in the electrode group may be made of a conductive material (or an electrode material), wherein the conductive material may be any material having conductivity, such as a metal material (e.g., copper, aluminum, iron, cobalt, nickel, etc.), an alloy material (e.g., a chrome copper alloy), a metal oxide (e.g., aluminum oxide copper, etc.), a composite metal, and the like, and the embodiments of the present invention are not limited thereto. In some embodiments, in order to improve the light and thin feeling of the electronic device 100, the thickness of the electrode may be designed to be thinner, for example, a Physical Vapor Deposition (PVD) coating method (also referred to as a PVD deposition method) may be used to form a thinner electrode by coating a thin film material (such as one or more of the electrode materials listed above) on the outer surface of the electronic device 100.

In some embodiments, the electrode set may also provide the electronic device 100 with a function of displaying an Electrocardiogram (ECG). For example, when the user's skin contacts an electrode set on the electronic device 100, the electronic device 100 can provide an ECG function, i.e., the electronic device 100 can determine an ECG signal from electrical signals on the electrode set. Generally, the greater the number of electrode sets, the more electrical signals are acquired and the more accurate the ECG data is.

In some embodiments, the electronic device 100 may further include a power supply module, such as a battery, for supplying power to various components in the electronic device 100, such as the input unit 101, the output unit 102, the processor 103, and the like. In other embodiments, the electronic device 100 may further interface with a charging cradle, so that the power supply module can receive charging power from the charging cradle to store power for a battery of the electronic device 100.

Fig. 2 illustrates a schematic structural diagram of a charging cradle according to an embodiment of the present application. The cradle 200 can also include an input unit 201, an output unit 202, a processor 203, and a memory 204. The input unit 201, the output unit 202, the processor 203 and the memory 204 are based on the same inventive concept as those of the embodiment shown in fig. 1B, so that the similarities may be referred to each other and are not described herein. In addition, the cradle 200 can further comprise a charging port 205, and the charging port 205 of the cradle 200 can provide charging power to the electronic device 100.

In some embodiments, the cradle 200 and the adapter can be coupled by direct or indirect electrical connection to deliver charging power; the adapter and the charging stand 200 can be electromagnetically coupled by means of magnetic coupling, and the charging electric energy is transmitted by means of a magnetic field, that is, the adapter and the charging stand are connected by means of wireless charging. When the charging dock 200 and the adapter transmit charging power in a direct electrical connection manner, the charging dock 200 further includes an interface 206, and the interface 206 is used for performing a wired connection with the adapter. Optionally, after the interface 206 is used to connect to an adapter, and after the processor 203 of the charging cradle 200 detects and identifies the type of the adapter, the processor 203 configures charging parameters for the charging port 205 and then starts charging.

In some embodiments, the adapter may be configured to convert an ac voltage signal of a commercial power into a dc output potential to charge the electronic device 100 through the interface 206 and the charging port 205. In some embodiments, the cradle 200 and the adapter can be connected via a USB-on-the-go (OTG) cable, which can include an a-terminal and a B-terminal. The user can connect the a end of the USB OTG line with the interface 206 of the charging cradle 200, and connect the B end of the USB OTG line with the USB interface of the adapter. The adapter may output power from the terminal B to the terminal a of the USB OTG line, and the power received by the terminal a of the USB OTG line is transmitted to the charging port 205, and is connected to the power receiving port 105 through the charging port 205 to charge the electronic device 100.

In some embodiments, for example, the terminals a and B of the USB OTG line may include a Ground (GND) pin, a trigger pin, a Data Positive (DP) pin, a data negative (DM) pin, and a power bus (VBUS) pin. The DP pin may also be referred to as a D + pin, and the DM pin may also be referred to as a D-pin. For example, the interface 206 on the charging cradle 200 may be a conventional USB interface such as a Micro USB interface, a USB Type C interface, etc., the trigger pin may be an Identification (ID) pin of the Micro USB interface, and for the USB Type C interface, the trigger pin may be a control (CC) pin. The specific implementation of the trigger pin is determined by the specific type of the interface 206, which is not limited in this application. It should be noted that the shape of the USB OTG line in the embodiment of the present application may be a linear shape, or may also be a nonlinear shape such as a square shape or a circular shape, and the embodiment of the present application does not limit the shape of the USB OTG line too much.

When the charging cradle 200 and the adapter transmit charging power in a magnetic coupling manner, the charging cradle 200 further includes an induction coil 207. A changing current is generated by a coil in the adapter, which in turn generates a magnetic field. When the charging cradle 200 is close to the adapter, the induction coil 207 of the charging cradle can generate induction current, so as to realize the transmission of charging power.

In some embodiments, the processor 203 may be a main control chip or a part of a main control chip of the cradle 200, and the main control chip is responsible for detecting the access of the adapter, processing charging logic according to the access condition of the adapter, and controlling the charging port 205 to charge.

In some embodiments, the cradle 200 and the adapters can be of a separate design, and the cradle 200 can be coupled to different adapters. In other embodiments, the charging dock 200 and the adapter can be integrally designed, that is, the charging dock 200 has the function of the adapter, or the adapter is designed into the charging dock 200, so that the charging dock 200 can directly convert the ac voltage signal of the utility power into the dc output potential, and charge the electronic device 100 through the charging port 205.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings. Fig. 3A illustrates a schematic diagram of a charging scenario provided in an embodiment of the present application. The charging scenario includes the electronic device 300, the charging cradle 310, and the adapter 320. In this embodiment, the electronic device 300 is connected to the charging dock 310, that is, the power receiving port 301 of the electronic device 300 is electrically connected to the charging port 311 of the charging dock 310. The adapter 320 provides power to the electronic device 300 through the cradle 310. The electronic device 300 and the charging dock 310 can contact each other in a magnetic attraction manner, a fastening manner, and the like, so that the connection stability is ensured. It should be noted that fig. 3A illustrates the electronic device 300 located on the upper layer of the charging dock 310, and it is understood that the electronic device 300 may also be located on the lower layer of the charging dock 310, that is, the charging dock 310 located on the upper layer faces downward and faces upward, and the charging dock 310 located on the lower layer charges the electronic device 300 located on the lower layer.

Referring to fig. 3A, the electronic device 300 may include: a power receiving port 301, a first processing module 302, and a first photovoltaic module 303, wherein the charging dock 310 may include: a charging port 311, a second processing module 312, and a second photovoltaic module 313. The cradle 310 is coupled to an adapter 320. For example, when the electronic device 300 is a wearable device, the first photovoltaic module 302 may be a PPG sensor. The working principle of the PPG sensor can refer to the working principle in the biological and medical fields, and the PPG sensor is slightly adjusted according to actual use requirements, so that the optical signal is transmitted.

The functions of the various modules in the electronic device 300 will be described first. The power receiving port 301 is configured to be connected to a charging port 311 of a charging cradle 310, and receive charging power from the charging cradle 310; the first processing module 302 is configured to generate a charging instruction, where the charging instruction is used to indicate an operating parameter or a charging protocol of the adapter 320, and the adapter 320 is used to provide the charging power to the power receiving port 301 through the charging cradle 310; generating a first light-emitting control signal according to the charging instruction, wherein the first light-emitting control signal is used for indicating a first target light-emitting parameter; sending the first lighting control signal to the first photovoltaic module 303; the first photovoltaic module 303 is configured to receive the first light-emitting control signal and emit a first optical signal according to the first target light-emitting parameter, where the first optical signal is transmitted to the charging dock and is used to indicate the charging instruction.

The functions of the various modules in the cradle 310 are described below. The cradle is coupled with the adapter 320 and receives charging power from the adapter 320; the charging port 311 is configured to connect to a power receiving port 301 of an electronic device 300, and provide the charging power to the electronic device 300; the second photovoltaic module 313 is configured to receive a first optical signal sent by the electronic device 300, and determine a first target lighting parameter of the first optical signal; sending a second notification message to the second processing module 312, where the second notification message is used to notify the second processing module 312 of the first target lighting parameter of the first optical signal; the second processing module 312 is configured to determine the first target lighting parameter according to the second notification message, and determine a charging instruction corresponding to the first target lighting parameter, where the charging instruction is used to indicate a working parameter or a charging protocol of the adapter 320.

Based on the specific structure of the electronic device 300 and the cradle 310 shown in fig. 3A, the following describes in detail the steps of the electronic device 300 transmitting the operating parameters of the adapter 320 to the adapter 320 via the cradle 310, with reference to the flow shown in fig. 3B.

S301: the first processing module 302 generates a charging instruction and generates a first lighting control signal according to the charging instruction. Wherein the charging instruction is used for indicating an operating parameter of the adapter 320. In some embodiments, the operating parameters of the adapter 320 include at least one of: charging voltage, charging current, adapter operating temperature range, or charging power.

In S301, the first processing module 302 may determine the operating parameters of the adapter 320 in various ways. The following description takes the operating parameter of the adapter 320 as an example of the charging power, and the charging power of the adapter 320 may be determined, but is not limited to, as follows.

The first method is as follows: the electronic device 300 further includes a display screen, and the first processing module 302 is specifically configured to: the display screen of the control electronic device 300 displays a charging power selection interface and determines the charging power in response to a selection operation by a user. Optionally, a touch sensor is disposed on the display screen, and when a touch operation of a user acts on the display screen, the first processing module 302 detects a position touched by the user through the touch sensor, so as to determine different operation instructions. The first processing module 302 of the electronic device 300 may control a display screen to display a charging power selection interface according to an operation of a user or a background calculation, where a charging power list is displayed in the charging power selection interface. The first processing module 302 may determine the charging power of the adapter 320 selected by the user on the charging power list according to the operation of the user on the display screen of the electronic device 300.

For example, fig. 3C is a diagram illustrating a user selecting different charging power options on a display of an electronic device. When the first processing module 302 detects that a user clicks and selects a 20W charging power option in a charging power list of a charging power selection interface, a charging instruction is generated to indicate that the charging power of the adapter 320 is a 20W charging instruction. In addition, the first processing module 302 may determine different charging powers of the adapter 320 according to different gesture operations of the user on the electronic device 300.

The second method comprises the following steps: the first processing module 302 determines the charging power according to the set charging power determination rule. As an optional implementation manner, the electronic device 300 stores a corresponding relationship between a plurality of battery power ranges and the charging power of the adapter 320. In this way, the first processing module 302 may determine, according to the target battery electric quantity range where the current battery electric quantity is located, that the charging power of the adapter 320 is the charging power corresponding to the target battery electric quantity range.

For example: when the battery level is lower than 50%, the first processing module 302 determines that the charging power of the adapter 320 is 15W. When the battery level of the electronic device 300 is lower than 20%, the first processor module 302 determines that the charging power of the adapter 320 is 20W. Since the lower the battery level, the higher the charging power of the adapter 320, the higher the charging power when the battery level of the electronic device 300 is low, and thus the charging speed of the electronic device 300 is increased by increasing the charging power. The corresponding relationship between the battery power range and the charging power of the adapter 320 in the embodiment of the present application may be preset in the electronic device 300, or may be set by a user, which is not limited herein.

As another optional implementation manner, the electronic device 300 stores corresponding relations between different time differences and the charging power of the adapter 320, where the time difference is a time difference between the current time and the next usage time input by the user. Wherein, in the case that the electronic device 300 includes a display screen, the first processing module 302 controls the display screen of the electronic device 300 to display a next usage time input interface, and determines the next usage time input by the user in response to the user detecting the position touched by the user through the touch sensor, thereby determining the charging power of the adapter 320. Specifically, the first processing module 302 determines the time difference according to the current time and the next usage time input by the user. And calculating the charging power of the adapter 320 according to the time difference.

Illustratively, fig. 3D is a schematic diagram of a user inputting a next usage time on a display screen of the electronic device. When the first processing module 302 detects that the user inputs the next usage time as 12:30 in the next usage time input interface, the first processing module 302 determines that the time difference is 30 minutes according to the current time and the next usage time, and determines that the charging power of the adapter 320 is 20W. The shorter the time difference is, the higher the charging power of the adapter 320 is, so that the first processing module 302 can flexibly set the charging power of the adapter 320 according to the next use time of the user, and when the user urgently needs to use the electronic device 300, the charging speed of the electronic device 300 can be increased, and the user experience can be improved.

As another alternative embodiment, the electronic device 300 stores a corresponding relationship between a plurality of charging periods and the charging power of the adapter 320. In this way, the first processing module 302 may determine, according to the target time period where the current time is, that the charging power of the adapter 320 is the charging power corresponding to the target time period. For example, within the first 10 minutes of the current charging period being charging, then the first processor module 302 determines that the charging power of the adapter 320 is 10W; within 10 to 20 minutes of charging for the current charging period, the first processor module 302 determines that the charging power of the adapter 320 is 15W; after the current charging period is 20 minutes of charging, the first processor module 302 determines that the charging power of the adapter 320 is 20W. The corresponding relationship between the charging periods and the charging power of the adapter 320 in the embodiment of the application may be preset in the electronic device 300 or may be set by a user, which is not limited herein.

Additionally, the operating temperature range of the adapter 320 may be used to indicate the operating temperature of the adapter 320, and the adapter 320 may no longer charge the electronic device 300 when the ambient temperature around the adapter 320 is outside the operating temperature range.

The first processing module 302 generates a first light emitting control signal after determining the charging instruction. The first light-emitting control signal is used to instruct the first photovoltaic module 303 to emit light according to the first target light-emitting parameter corresponding to the charging instruction.

In some embodiments, the first lighting control signal is for indicating the first target lighting parameter, the first target lighting parameter comprising at least one of: flicker frequency or illumination. The first target lighting parameter may be determined, but is not limited to, by: the electronic device 300 stores a plurality of corresponding relationships between the charging command and the light-emitting parameter. The first processing module 302 determines the first target light-emitting parameter in the table according to the charging instruction. See tables 1 and 2 below for exemplary reference. Table 1 is a relation table of different charging voltages corresponding to different illumination intensities, and table 2 is a relation table of different charging voltages corresponding to different flicker frequencies. In addition, the electronic device 300 may further store a corresponding relationship between a combination of a plurality of lighting parameters and the operating parameters of the adaptor, for example, a combination of different illumination intensities and different flashing frequencies may be adopted to correspond to different operating parameters of the adaptor 320.

TABLE 1

Illuminance of light	Charging voltage
50Lux	5V
80Lux	5.1V
100Lux	5.2V
…	…

TABLE 2

Frequency of flicker	Charging voltage
10KHz	5V
15KHz	5.1V
20KHz	5.2V
…	…

S302: the first processing module 302 sends a first lighting control signal to the first opto-electronic module 303. Wherein the first lighting control signal is for indicating a first target lighting parameter. Wherein the first target lighting parameter may comprise at least one of: the frequency of the flash or the illumination, etc. In addition, when the light emitting component in the first photovoltaic module 303 is a light emitting diode, the first target lighting parameter may further include: the current magnitude of the light emitting diode. Specifically, the greater the current of the light emitting diode, the greater the illuminance of the light emitting diode.

S303: the first optoelectronic module 303 emits a first optical signal according to the first target lighting parameter indicated by the first lighting control signal. After receiving the first light emission control signal, the first optoelectronic module 303 drives a light emitting component in the first optoelectronic module 303 to emit a first light signal according to the first target light emission parameter indicated by the first light emission control signal. The first optical signal may be continuously sent out during the charging process when the power receiving port 301 receives the adapter 320, or may be sent out at preset time intervals, which is not limited herein.

S304: after receiving the first optical signal sent by the electronic device 300, the second optoelectronic module 313 determines a first target light-emitting parameter of the first optical signal. The second optoelectronic module 313 includes a light receiving part, and the light receiving part detects a first target light emitting parameter of the first optical signal according to the received first optical signal.

S305: the second optoelectronic module 313 sends a second notification message to the second processing module 312 according to the first target lighting parameter. Wherein the second notification message is used to notify the second processing module 312 of the first target lighting parameter of the first light signal.

S306: the second processing module 312 receives the second notification message, determines the first target lighting parameter according to the second notification message, and determines the charging instruction corresponding to the first target lighting parameter. Optionally, the second notification message includes the first target light-emitting parameter, and the second processing module 312 may determine the corresponding charging instruction according to the first target light-emitting parameter. Note that, the charging cradle 310 may similarly store a correspondence relationship between a combination of a plurality of light emission parameters and an operation parameter of the adapter. And, the table is the same as the stored correspondence of the electronic device 300. Therefore, the second processing module 312 can also determine the operating parameter of the adapter 320 according to the first target lighting parameter; and further generates the charging instruction according to the operating parameters of the adapter 320.

In addition, the second processing module 312 may further determine, according to the operating parameter of the adapter 320, a charging protocol corresponding to the operating parameter of the adapter 320, and determine the charging instruction according to the charging protocol. Specifically, the charging cradle 310 stores a charging protocol table in which the operating parameters of the adapter 320 correspond to the charging protocol. The second processing module 312 determines a charging protocol corresponding to the received operating parameter of the adapter 320 in the charging protocol table. For example, when the second processing module 312 determines that the operating parameter of the adapter 320 is the charging current of 2(a) and the charging voltage of 9(V) according to the first target light-emitting parameter, it determines that the operating parameter of the adapter 320 conforms to a Fast Charger Protocol (FCP), and determines the FCP as a charging instruction corresponding to the first target light-emitting parameter.

S307: the cradle 310 sends the charging instructions to the adapter 320. As an optional implementation manner, the second processing module 312 may encrypt the sent charging instruction by means of cyclic redundancy check, crc (cyclic redundancy check), parity check, or the like, and send the encrypted charging instruction to the adapter 320, so that the adapter 320 charges the electronic device 300 according to the charging instruction after decryption, thereby ensuring the transmission security of the charging instruction.

When the charging instruction includes the charging protocol, after the charging dock 310 sends the charging instruction to the adapter 320, the second processing module 312 may further communicate with the adapter 320 by using a communication mode specified by the charging protocol in the charging instruction. After the second processing module 312 and the adapter 320 complete the charging protocol communication procedure, the adapter 320 may provide the charging power to the electronic device 300 by using the operating parameters specified by the charging protocol.

For example, the charging protocol is an FCP protocol, and the adapter 320 and the cradle 310 are connected by a wired connection via the interface 314, wherein the FCP charging protocol may specify a communication method, which includes the following steps: 1. battery charging specification (BC) 1.2 protocol detection, 2 FCP handshake, 3 communication voltage regulation/flow regulation. After the communication procedure of the above steps is completed, the adapter 320 may use the operating parameters of the adapter 320 corresponding to the FCP to charge the electronic device 300.

Wherein, the detection step of the BC1.2 protocol may include: identify whether the adapter 320 is DCP capable or whether the adapter 320 is a DCP device. After the second processing module 312 recognizes that the adapter 320 has DCP capability or is a DCP device, the next FCP handshake step is performed. Specifically, the manner of identifying whether the adapter 320 has DCP capability or is a DCP device may be: after the adapter 320 and the charging cradle 310 are connected through the USB OTG, the adapter 320 shorts the internal D + pin and the D-pin to notify the second processing module 312 that the adapter 320 has DCP capability, and after the second processing module 312 determines that the adapter 320 has DCP capability, the adapter 320 and the second processing module 312 can perform the next step of FCP handshake.

The step of FCP handshake may include: the adaptor 320 continuously detects a D + signal in the USB OTG, and if the level of the D + signal is greater than a preset reference value and the duration of the level greater than the preset reference value exceeds 1 second, the adaptor 320 changes the short circuit between the D + and the D-into an open circuit, and sends a D-signal to pull down a pull-down resistor to pull down the D-to the ground, so as to inform the second processing module 312 that it has the function of the FCP charging protocol.

The step of communicating the voltage/current regulation may include: the second processing module 312 communicates with the adapter 320 by sending at least one communication message. The communication messages of the cradle 310 and the adapter 320 can include: ping signal, synchronization signal and charging data. The ping signal is used for starting the communication process and ending the communication process. The synchronization signal acts as a break-up between two bytes to initiate the transfer of charging data to identify the start of the transfer of one byte. The charging data is used for indicating charging voltage and charging current, and each byte of the charging data consists of 8 bits and odd check bits.

Based on the specific structure of the electronic device 300 and the cradle 310 shown in fig. 3A, the following describes in detail the transmission of the charging protocol from the electronic device 300 to the adapter 320 via the cradle 310 with reference to the flowchart shown in fig. 4.

S401: the first processing module 302 generates a charging instruction and generates a first lighting control signal according to the charging instruction. Wherein the charging instructions may also be used to indicate a charging protocol used by the adapter 320; a set of charging protocols may be stored in the electronic device 300, which may include: QC (quick charge, high-pass)

Fast charging) 1.0-QC 5.0, USB PD (USB Power Delivery), FCP, PE (Pumpexpress Plus, Union department)

Fast charge), VOOC: (

Fast charging)/DASH

Fast charging), SCP (smart charging protocol), and the like. In addition, the charging protocols in the charging protocol set are not limited to the above, and any charging protocol may be in the charging set, which is not limited herein. Different charging protocols may correspond to different adapter 320 operating parameters. The first processing module 302 selects a charging protocol from the set of charging protocols that conforms to the operating parameters of the adapter 320.

The manner for determining the operating parameter of the adapter 320 by the first processing module 302 is referred to as S301, and is not described herein again. Each charging protocol in the charging protocol set has a working parameter corresponding to the charging protocol, and after the first processing module 302 determines the working parameter of the adapter 320, the charging protocol conforming to the working parameter of the adapter 320 is selected according to the charging protocol set. For example, if the electronic device 300 determines that the operating parameters of the adapter 320 are the charging voltage 9(V) and the charging current 2(a), a charging protocol conforming to the operating parameters of the adapter 320 may be selected from the charging protocol set as FCP. In addition, manufacturers of different devices are different, and charging protocols of different manufacturers are also different, and the first processing module 302 may select, according to the device manufacturer of the electronic device 300, a prescribed charging protocol of the electronic device 300 from the charging protocol set, and use the charging protocol as the charging protocol used by the adapter 320.

The first processing module 302 generates a first light emitting control signal after determining the charging instruction. The first light-emitting control signal is used to instruct the first photovoltaic module 303 to emit light according to the first target light-emitting parameter corresponding to the charging instruction. In some embodiments, the lighting control signal comprises at least one of: flicker frequency or illumination.

The first lighting control signal may be determined, but is not limited to, by: a table of the correspondence relationship between the charging protocol in the charging instruction and the first target light-emitting parameter is stored in the electronic device 300. The first processing module 302 determines the first target lighting parameter according to the charging protocol in the charging instruction in the table. See table 3 below for exemplary reference. Wherein, table 3 is a relation table of different charging protocols corresponding to different flashing frequencies and illumination intensities.

TABLE 3

Frequency of flicker	Illuminance of light	Charging protocol
10KHz	50Lux	FCP
20KHz	100Lux	SCP
…	…	…

In addition, the charging instruction generated by the first processing module 302 is not necessarily complete protocol content, and may also be part of the content of the charging protocol or identification information of the charging protocol, etc. So that the cradle 310, after receiving a part of the content of the charging protocol or the identifier of the charging protocol, determines the type of the charging protocol, and interacts with the adapter 320 according to the charging protocol, so as to inform the adapter 320 of the charging protocol indicated by the electronic device 300. Moreover, the charging instruction generated by the first processing module 302 may also be a step of performing one authentication process in an interactive transmission charging protocol or a step of regulating voltage and current after the charging protocol is authenticated.

S402: the first processing module 302 sends a first lighting control signal to the first opto-electronic module 303. The first lighting control signal is used for indicating a first target lighting parameter.

S403: the first photovoltaic module 303 sends a first optical signal to the second photovoltaic module 212 according to the first target lighting parameter indicated by the second lighting control signal. S404: the second optoelectronic module 313 receives the first optical signal sent by the first optoelectronic module 303, and determines a first target light emitting parameter of the first optical signal. S405: the second photovoltaic module 313 sends a first notification message to the second processing module 312 according to the first target lighting parameter. S406: the second processing module 312 receives the first notification message, determines the first target light-emitting parameter according to the first notification message, and determines the charging protocol corresponding to the first target light-emitting parameter. The first notification message includes a flashing frequency or an illumination intensity in the first target lighting parameter, and the second processing module 312 determines the charging protocol, or a part of the content of the charging protocol, or the identification information of the charging protocol, or one or more of the charging protocols to interactively transmit the charging protocol according to the flashing frequency or the illumination intensity in the first target lighting parameter.

S407: the cradle 310 sends the charging protocol to the adapter 320. If the first target lighting parameter indicates the charging protocol, or a part of the content of the charging protocol, or the identification information of the charging protocol, the charging cradle 310 performs charging protocol interaction with the charging protocol indicated by the first target lighting parameter, and performs charging protocol interaction with the adapter 320, where the charging protocol interaction mode is the same as the charging protocol interaction mode provided in step S307, and is not described herein again. If the first target lighting parameter indicates one or more steps of interactively transmitting the charging protocol in the charging protocol, the charging dock 310 executes the steps of interacting the charging protocol according to the steps indicated by the first target lighting parameter.

As an optional implementation manner, the first photovoltaic module 303 in the electronic device 300 is further configured to receive a second optical signal sent by the charging dock 310, and determine a second target lighting parameter of the second optical signal; sending a first notification message to the first processing module 302, where the first notification message is used to notify the first processing module 302 of the second target lighting parameter.

The first processing module 302 is further configured to: determining the second target light-emitting parameter according to the first notification message; and determining feedback information corresponding to the second target light-emitting parameter, wherein the feedback information includes at least one of the following items: a temperature of the adapter, or response information indicating whether the adapter executes the charging instruction.

The second processing module 312 is further configured to: receiving feedback information sent by the adaptor 320, where the feedback information includes at least one of: a temperature of the adapter, or response information indicating whether the adapter executes the charging instruction; generating a second light-emitting control signal according to the feedback information; the second light-emitting control signal is used for indicating a second target light-emitting parameter corresponding to the feedback information; sending the second light emitting control signal to the second optoelectronic module 312;

the second photovoltaic module 313 is further configured to: and receiving the second light-emitting control signal, and emitting a second light signal according to the second target light-emitting parameter.

Based on the specific structure of the electronic device 300 and the cradle 310 shown in fig. 3A, the following describes in detail the steps of the adaptor 320 transmitting the feedback information to the electronic device 300 through the cradle 310 with reference to the flowchart shown in fig. 5.

S501: the adapter 320 generates feedback information upon determining the indicated operating parameters or charging protocol, and transmits the feedback information to the cradle 310.

The feedback information includes at least one of: a temperature of the adapter, or response information indicating whether the adapter executes the charging instruction.

The adapter 320 further includes a switched capacitor circuit, and the switched capacitor circuit can adjust the power output to the electronic device 300 when the adapter 320 charges the electronic device 300. However, there is a power loss in the switched capacitor circuit during operation, and this power loss affects the charging efficiency of the electronic device 300. If the power loss exceeds the range of power loss that can be carried by the adapter 320, the power loss of other hardware (e.g., charging coil, chip) in the adapter 320 is converted into heat energy, resulting in heat generation or even damage of the adapter 320. Based on this consideration, a temperature sensor may be disposed in the adapter 320, and the temperature sensor is configured to detect the temperature of the adapter 320 in real time or at regular time, transmit the temperature of the adapter 320 to the electronic device 300 during the process of charging the electronic device 300 by the adapter 320, and when the temperature of the adapter 320 is greater than a set temperature threshold, the first processing module 302 transmits an instruction message to disconnect the charging port 311 of the charging dock 320 to the power receiving port 301, so that the electronic device 300 does not receive the charging of the adapter 320 any more, thereby ensuring the safety of the adapter 320 and the electronic device 300.

After the adapter 320 receives the operating parameters or the charging protocols indicated by the electronic device 300, the adapter 320 determines response information according to the operating parameter ranges and the charging protocol sets supported by the adapter 320, so as to indicate whether the adapter can execute the charging instruction. For example, if the charging current indicated by the electronic device 300 is 3(a), the charging voltage is 9(V), and the adapter 300 supports only the output current of the charging current 2(a), the adapter 320 cannot supply power with the indicated charging current, and generates response information that charging cannot be performed with the indicated charging current. For another example, if the charging protocol instructed by the electronic device 300 is SCP and the adapter 300 supports only FCP, the adapter 320 cannot supply power according to the instructed charging protocol, and generates response information indicating that charging is not performed according to the instructed SCP charging protocol.

In addition, the response information can also be used to indicate the charging protocol authentication result of the charging cradle 310 and the adapter 320. For example, if the charging dock 310 performs FCP protocol communication with the adapter 320, after any one of BC1.2 detection, FCP handshake, and communication voltage/current regulation succeeds/fails, the adapter 320 generates a response message indicating charging protocol communication to inform the electronic device 300 whether any one of charging protocol authentication succeeds or not.

S502: the second processing module 312 generates a second light-emitting control signal according to the feedback information. The second light-emitting control signal is used to instruct the second optoelectronic module 313 to emit light according to the second target light-emitting parameter corresponding to the feedback information. Wherein the second target lighting parameter may also include, but is not limited to: flicker frequency, or illumination, etc. The manner of determining the light emission control signal corresponding to the feedback information is based on the same concept as the manner of determining the light emission control signal according to the working parameter or the charging protocol of the adapter, and is not described herein again.

S503: the second processing module 312 sends a second light emission control signal to the second photovoltaic module 313. S504: the second photovoltaic module 313 determines a second target lighting parameter according to the second lighting control signal. S505: the second optoelectronic module 313 emits a second optical signal according to the second target light-emitting parameter. Wherein, the second optoelectronic module 313 comprises a light emitting component, and the light emitting component emits a second light signal according to a second target lighting parameter.

S506: the first optoelectronic module 303 receives the second optical signal, determines the second target light emitting parameter, and sends a first notification message to the first processing module 302. The first optoelectronic module 303 includes a light receiving component, and the light receiving component determines a second target light emitting parameter of a second optical signal according to the received second optical signal. As an alternative embodiment, when the first processing module 302 of the electronic device 300 does not receive the second optical signal, the electronic device 300 may consider that the adapter 320 cannot supply power with the indicated operating parameter or charging protocol.

S507: the first processing module 302 receives the first notification message, determines the second target lighting parameter, and determines the response information and the temperature of the adapter 320 according to the second target lighting parameter. Specifically, when the adapter 320 is unable to supply power with the indicated operating parameter or charging protocol, the electronic device 300 may attempt to re-indicate a lower operating parameter or a charging protocol corresponding to the lower operating parameter to the adapter 320.

The various processing modules in the above embodiments may be processors and the opto-electronic module may be a PPG processing device, such as a PPG sensor. The PPG processing device according to the embodiments may refer to the prior art, and is a device for receiving a lighting control signal and generating an optical signal according to the lighting control signal, the optical signal being transmitted to a charging dock for indicating a charging instruction.

Based on the specific structure of the electronic device 300 and the charging dock 310 shown in fig. 3A, the present application provides an example of an electronic device and a charging dock, where the electronic device is taken as an example of the smart watch 600, and the smart watch 600 may include: a power receiving electrode 601, a PPG sensor 602, a first processor 603, the smart watch 600 may further comprise a watch body 604 and a watch band 605. The cradle 610 may include: a charging electrode 611, a photovoltaic module 612, a second processor 613 and an adapter connection port 614. It should be understood that fig. 6 only shows a portion of the watch band 605 (i.e., only the portion of the watch band 605 that is attached to the watch body 604), and that the back case member 608 may also include a sensor subsystem thereon, which may include a temperature sensor, a Bio-z sensor, or the like (not shown). Of course, the sensor subsystem may also include other sensors such as acceleration sensors, etc. Taking the PPG sensor 602 as an example, the PPG sensor 602 may include optical components (a light receiving component and a light emitting component). The optical assembly may include

windows

606, 607 in a rear housing member 608. Each of

windows

606, 607 may pass at least one wavelength of optical signal. In some cases, each of the

windows

606, 607 may have a semicircular or irregular shape. The window may be formed of a crystal, glass, plastic, or other material that may pass at least one wavelength of optical signals transmitted or received by the PPG sensor 602.

The power receiving electrode 601 shown in fig. 6 may be an electrode formed by coating a thin film material (such as one or more of the electrode materials listed above) on the outer surface of the smart watch 600 by using a PVD coating method, and the above structure ensures the waterproof performance of the smart watch 600 and can better improve the anti-corrosion function of the smart watch 600. And the charging electrode 611 shown in fig. 6 may be an electrode of pogo pin structure. The electrode formed by the PVD coating is in contact with the electrode of the pogo pin structure in an electrical connection manner, so that the power receiving electrode 601 of the smart watch 600 is connected to the charging electrode 611 of the charging stand 610.

In some embodiments, the front surface of the charging seat 610 and the back surface of the electronic device 600 are respectively provided with a magnet, and when the front surface of the charging seat 610 and the back surface of the smart watch 600 are close to each other (less than a certain distance), the charging seat 610 and the smart watch 600 ensure the stability of the receiving electrode 601 for connecting with the charging electrode 611 of the charging seat 610 through the magnetic fields generated by the magnets on both sides. The position of the magnet in the embodiment of the present application is not limited to being set on the back and the front respectively, and those skilled in the art should understand that the magnet may be set on any position of the charging seat 610 and the smart watch 600 respectively, and is not limited herein. For example, magnets may be directly provided on the power receiving electrode 601 of the smart watch 600 and the charging electrode 611 of the charging stand 610, so that the power receiving electrode 601 and the charging electrode 611 are attracted to each other. In other embodiments, the front surface of the charging seat 610 and the back surface of the smart watch 600 may further be respectively provided with a fastening structure, and the front surface of the charging seat 200 and the back surface of the smart watch 600 are fixed by the fastening structure, so as to ensure the stability of the connection between the power receiving electrode 601 of the smart watch 600 and the charging electrode 611 of the charging seat 610.

In some embodiments, a pair of

windows

606, 607 is included in the entire window. Hereinafter referred to as window 606 as a first window under which a light emitting element is placed and window 607 as a second window under which a light receiving element is placed. A light blocking wall is disposed between each window, e.g., the light blocking wall may be positioned between the light emitting part and the light receiving part to isolate the emitted light from the received light. Wherein the light emitting member may be an emitter capable of emitting visible light or invisible light. The light receiving part may be an emitter that can receive emitted visible light or invisible light. For example, the light receiving component may convert the received visible or invisible light (optical signal) into an electrical signal and then determine a physiological parameter or communication content, such as a heart rate, an operating parameter of the adapter 620, a charging protocol, and the like, based on the electrical signal. In some embodiments, the backside housing member 608 may include a transparent cover (e.g., a cover including a crystal, such as a sapphire crystal, or glass, or plastic, etc.) and may be flat or planar or may be curved or non-planar. In other embodiments, the rear side housing member 608 may be an opaque substrate, such as a metal or plastic substrate, and the windows 606, 607 (e.g., transparent windows) may fit into openings in the opaque substrate and the power receiving electrode 601 may be mounted in other openings. In some embodiments, the power receiving electrode 601 or the window may be provided as a protrusion protruding outward or a recess sinking inward on the outer surface of the rear case member 608 (the material of the protrusion or the recess may be different from that of the rear case member), and the embodiment of the present invention is not limited thereto. In addition, the photo-electric module 612 on the charging stand 610 and the PPG sensor 602 may be based on the same design concept, and any design structure and method that can be applied to the PPG sensor 602 may be applied to the photo-electric module 612 of the charging stand 610, which is not described in detail in this embodiment.

Utilize electronic equipment and charging seat that this application provided, can solve wearable electronic equipment's the problem of filling soon, it is specific, can generate the instruction of charging when electronic equipment charges, electronic equipment's photovoltaic module will the instruction of charging sends the charging seat with the light signal mode on, confirm the instruction of charging by the photovoltaic module of charging seat according to the parameter of light signal, send the instruction of charging to the adapter on to realize the interaction of charging power and charge agreement between electronic equipment and adapter, finally realize the function of filling soon. In addition, an additional data line of a transmission protocol is omitted between the electronic equipment and the charging seat, so that the cost is saved, the hardware framework of the electronic equipment is prevented from being adjusted, and the problem that a charging connecting terminal of the electronic equipment is corroded is also avoided.

The embodiment of the present application further provides a charging method, which is applied to the electronic device 300 provided in the foregoing embodiment, and the method includes: generating a charging instruction, wherein the charging instruction is used for indicating the working parameters or charging protocol of the adapter; generating a first light-emitting control signal according to the charging instruction; and sending a first light signal according to a first target light-emitting parameter indicated by the first light-emitting control signal, wherein the first light signal is transmitted to the charging seat and is used for indicating the charging instruction. The methods provided in this embodiment can be implemented on the electronic device 300 having the above hardware architecture, and are not described herein again.

The embodiment of the present application further provides a charging method, which is applied to the charging dock 310 provided in the above embodiment, and the method includes: receiving a first optical signal sent by electronic equipment, and determining a first target light-emitting parameter of the first optical signal; determining a charging instruction corresponding to the first target light-emitting parameter, wherein the charging instruction is used for indicating working parameters or a charging protocol of the adapter; and sending the charging instruction to the adapter. The methods provided in this embodiment can be implemented on the charging dock 310 having the hardware architecture, and are not described herein again.

Based on the foregoing embodiments, an embodiment of the present application further provides a charging apparatus 700, where the charging apparatus 700 may be applied to the electronic device 300 shown in fig. 3A to implement the charging method executed by the first processing module 302 in the foregoing embodiment, or applied to the charging dock 310 to implement the charging method executed by the second processing module 312 in the foregoing embodiment, with reference to fig. 7, and the charging apparatus 700 includes: a communication module 701, a processor 702, and a memory 703.

The communication module 701 and the memory 703 are interconnected with the processor 702. Optionally, the communication module 701 and the memory 703 may be connected to the processor 702 through a bus; the bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 7, but this is not intended to represent only one bus or type of bus.

The communication module 701 is configured to communicate with other devices. Illustratively, the communication module 701 may include a communication interface and a wireless communication module. The processor 702 is used for the charging method provided in the foregoing embodiment, and reference may be specifically made to the description of the first processing module 302 and the second processing module 312 in the foregoing embodiment, which is not described herein again. Optionally, the processor 702 may be a Central Processing Unit (CPU) or other hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof. When the processor 702 implements the above functions, the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software.

The memory 703 is used for storing program instructions, data, and the like. In particular, the program instructions may comprise program code comprising instructions for the operation of a computer. The memory 703 may comprise Random Access Memory (RAM), and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.

It will be appreciated that the memory 703 in FIG. 7 of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

An electronic device, characterized in that the electronic device comprises: receive power port, first photovoltaic module, and first processing module, wherein:

the power receiving port is connected with a charging port of a charging seat and used for receiving charging electric energy from the charging seat;

the first processing module is configured to generate a charging instruction, where the charging instruction is used to indicate a working parameter or a charging protocol of an adapter, and the adapter is used to provide the charging electric energy to the power receiving port through the charging socket; generating a first light-emitting control signal according to the charging instruction, wherein the first light-emitting control signal is used for indicating a first target light-emitting parameter; sending the first light-emitting control signal to the first photovoltaic module;

the first photovoltaic module is configured to receive the first light emission control signal and emit a first optical signal according to the first target light emission parameter, where the first optical signal is transmitted to the charging dock and is used to indicate the charging command.
The electronic device of claim 1, wherein the first target lighting parameter comprises at least one of: flicker frequency, or illumination.
The electronic device of claim 1 or 2, wherein the operating parameter comprises at least one of: charging voltage, charging current, adapter operating temperature range, or charging power.
The electronic device of any of claims 1-3, wherein the first optoelectronic module is further configured to:

receiving a second optical signal sent by the charging seat, and determining a second target light-emitting parameter of the second optical signal; sending a first notification message to the first processing module, wherein the first notification message is used for notifying the first processing module of the second target lighting parameter;

the first processing module is further configured to: receiving the first notification message, and determining the second target light-emitting parameter according to the first notification message; and determining feedback information corresponding to the second target light-emitting parameter, wherein the feedback information includes at least one of the following items: a temperature of the adapter, or response information indicating whether the adapter executes the charging instruction.
The electronic device of claim 4, wherein the first processing module is further configured to: and when the temperature of the adapter is determined to be greater than the temperature threshold value, sending an indication message of disconnection with a charging port of the charging seat to the power receiving port.
The electronic device of any one of claims 1-5, wherein the first optoelectronic module is a photoplethysmography (PPG) sensor.
A charging dock, the charging dock comprising: charge port, interface, second photovoltaic module and second processing module, wherein:

the interface is coupled with the adapter and used for receiving charging power from the adapter;

the charging port is used for being connected with a power receiving port of electronic equipment and providing charging electric energy for the electronic equipment;

the second photoelectric module is used for receiving a first optical signal sent by the electronic equipment and determining a first target light-emitting parameter of the first optical signal; sending a second notification message to the second processing module, where the second notification message is used to notify the second processing module of the first target lighting parameter;

the second processing module is configured to receive the second notification message, determine the first target lighting parameter according to the second notification message, and determine a charging instruction corresponding to the first target lighting parameter, where the charging instruction is used to indicate a working parameter or a charging protocol of the adapter;

the interface is further configured to send the charging instruction to the adapter.
The charging cradle of claim 7, wherein the first target lighting parameter comprises at least one of: flicker frequency, or illumination.
A charging cradle as claimed in claim 7 or 8, wherein the operating parameters of the adapter comprise at least one of: charging voltage, charging current, adapter operating temperature range, or charging power.
The cradle according to any of claims 7-9, wherein the interface is further configured to receive feedback information sent by the adaptor, the feedback information comprising at least one of: a temperature of the adapter, or response information indicating whether the adapter executes the charging instruction; generating a second light-emitting control signal according to the feedback information; the second light-emitting control signal is used for indicating a second target light-emitting parameter corresponding to the feedback information; transmitting the second light emission control signal to the second photovoltaic module;

the second photovoltaic module is further configured to: and receiving the second light-emitting control signal, and emitting a second light signal according to the second target light-emitting parameter, wherein the second light signal is transmitted to the electronic equipment and used for indicating the feedback information.
A charging method applied to electronic equipment is characterized by comprising the following steps:

generating a charging instruction, wherein the charging instruction is used for indicating the working parameters or the charging protocol of the adapter;

generating a first light-emitting control signal according to the charging instruction;

and sending a first light signal according to a first target light-emitting parameter indicated by the first light-emitting control signal, wherein the first light signal is transmitted to the charging seat and is used for indicating the charging instruction.
A charging method is applied to a charging seat, and is characterized by comprising the following steps:

receiving a first optical signal sent by electronic equipment;

determining a first target lighting parameter of the first light signal;

determining a charging instruction corresponding to the first target light-emitting parameter, wherein the charging instruction is used for indicating a working parameter or a charging protocol of the adapter;

and sending the charging instruction to the adapter.