Mems sensor power supply system and power supply method of wearable device

Abstract

The invention discloses a Mems sensor power supply system and a power supply method of wearable equipment, and the system comprises a Mems sensor, a main battery and an auxiliary battery, the auxiliary battery supplies power to the Mems sensor, the main battery supplies power to modules except the Mems sensor, data of the Mems sensor is obtained, and according to the data of the Mems sensor, the electric quantity of the auxiliary battery is periodically detected when the motion of a user is determined, so that the Mems sensor is determined to move. If the electric quantity of the auxiliary battery is smaller than the preset threshold value, the main battery is switched to supply power to the Mems sensor. By arranging the double-battery structure, the auxiliary battery is used for independently supplying power to the frequently started Mems sensor, so that the energy consumption of the main battery can be saved, the loss of the main battery is reduced, and the service life of the main battery is prolonged.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of wearable devices, and in particular to a power supply system and a power supply method for a Mems sensor of a wearable device. Background Art

[0002] In recent years, wearable devices have become very popular. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not just hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Wearable devices will bring great changes to our lives and perceptions.

[0003] At present, wearable devices use a battery to power all modules in the wearable device, and the charging cable is the only energy source when charging the battery. Since many modules in wearable devices need to run frequently, this will cause battery energy waste, and long-term charging and discharging will also cause battery loss. Summary of the invention

[0004] The embodiments of the present invention provide a power supply system and a power supply method for a Mems sensor of a wearable device, which can save energy consumption of a battery of the wearable device and increase the life of the battery.

[0005] In a first aspect, an embodiment of the present invention provides a Mems sensor power supply system for a wearable device, comprising: a Mems sensor, a main battery and a secondary battery; the secondary battery supplies power to the Mems sensor, and the main battery supplies power to modules other than the Mems sensor;

[0006] Acquiring data of the Mems sensor;

[0007] Based on the data of the Mems sensor, when it is determined that the user is exercising, periodically detecting the power of the secondary battery;

[0008] If the power level of the secondary battery is less than a preset threshold, the main battery is switched to power the Mems sensor.

[0009] Optionally, when it is detected that the wearable device enters a dormant or stationary state, the main battery is switched to power the Mems sensor.

[0010] Optionally, the system further comprises a Mems micro vibration energy harvester;

[0011] During the user's exercise, the energy during the exercise is collected by the MEMS micro-vibration energy harvester to charge the secondary battery.

[0012] Optionally, the system further comprises a rectifying charging circuit, an energy storage circuit, an intelligent voltage regulator and an energy detector;

[0013] The rectifying and charging circuit is used to rectify the energy transmitted by the MEMS micro-vibration energy harvester and transmit it to the energy storage circuit;

[0014] The energy storage circuit is used to store the energy transmitted by the rectification and charging circuit in the secondary battery;

[0015] The intelligent voltage regulator is used to transmit the power in the secondary battery to the Mems sensor;

[0016] The energy detector is used to detect the energy during the movement of the user.

[0017] Optionally, the rectifying and charging circuit is also used to directly power the Mems sensor through the intelligent voltage regulator.

[0018] Optionally, the energy storage circuit is also used to power the energy detector.

[0019] In a second aspect, an embodiment of the present invention provides a power supply method for a Mems sensor power supply system of a wearable device based on any one of the first aspect, including:

[0020] Acquiring data of the Mems sensor;

[0021] Based on the data of the Mems sensor, when it is determined that the user is exercising, periodically detecting the power of the secondary battery;

[0022] If the power level of the secondary battery is less than a preset threshold, the main battery is switched to power the Mems sensor.

[0023] Optionally, the method further comprises:

[0024] When it is detected that the wearable device enters a dormant or stationary state, the main battery is switched to power the Mems sensor.

[0025] In a third aspect, an embodiment of the present invention further provides a computing device, including:

[0026] A memory for storing program instructions;

[0027] The processor is used to call the program instructions stored in the memory and execute the power supply method according to the obtained program.

[0028] In a fourth aspect, an embodiment of the present invention further provides a computer-readable non-volatile storage medium, comprising computer-readable instructions. When a computer reads and executes the computer-readable instructions, the computer executes the above-mentioned power supply method.

[0029] In the embodiment of the present invention, the Mems sensor power supply system of the wearable device includes a Mems sensor, a main battery and a secondary battery. The secondary battery supplies power to the Mems sensor, and the main battery supplies power to modules other than the Mems sensor. The data of the Mems sensor is obtained. When determining the user's movement based on the data of the Mems sensor, the power of the secondary battery is periodically detected. If the power of the secondary battery is less than a preset threshold, the main battery is switched to supply power to the Mems sensor. By setting a dual-battery structure and using the secondary battery to supply power to the frequently activated Mems sensor alone, the energy consumption of the main battery can be saved, the loss of the main battery can be reduced, and the life of the main battery can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic diagram of a system architecture provided for an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the structure of a Mems sensor power supply system for a wearable device provided in an embodiment of the present invention;

[0033] Figure 3 A schematic diagram of secondary battery energy recovery provided by an embodiment of the present invention;

[0034] Figure 4 A schematic flow chart of a power supply method for a Mems sensor power supply system based on a wearable device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] First, Figure 1The structure shown is used as an example to introduce the wearable device applicable to the embodiment of the present invention. In the embodiment of the present invention, the wearable device 100 may include, but is not limited to, a radio frequency (RF) circuit 110, a memory 120, an input unit 130, a WiFi module 170, a display unit 140, a sensor 150, an audio circuit 160, a processor 180, and a motor 190.

[0037] Among them, those skilled in the art can understand that Figure 1 The structure of the wearable device 100 shown in the figure is only an example and not a limitation. The wearable device 100 may also include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0038] The RF circuit 110 can be used to receive and send signals during the process of sending and receiving information or making calls. In particular, after receiving the downlink information of the base station, it is processed by the processor 180; in addition, the uplink data of the wearable device 100 is sent to the base station. Generally, the RF circuit includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA, LowNoiseAmplifier), a duplexer, etc. In addition, the RF circuit 110 can also communicate with the network and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to the Global System for Mobile communication (GlobalSystem for Mobile communication, referred to as "GSM"), General Packet Radio Service (General PacketRadio Service, referred to as "GPRS"), Code Division Multiple Access (Code Division Multiple Access, referred to as "CDMA"), Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, referred to as "WCDMA"), Long Term Evolution (Long Term Evolution, referred to as "LTE"), email, Short Messaging Service (Short Messaging Service, referred to as "SMS"), etc.

[0039] The memory 120 can be used to store software programs and modules, and the processor 180 executes various functional applications and data processing of the wearable device 100 by running the software programs and modules stored in the memory 120. The memory 120 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the wearable device 100 (such as audio data, a phone book, etc.), etc. In addition, the memory 120 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0040] The input unit 130 can be used to receive input digital or character information, and to generate key signals related to user settings and function control of the wearable device 100. Specifically, the input unit 130 may include a touch panel 131, a camera 132, and other input devices 133. The camera 132 can take pictures of the images to be acquired, thereby transmitting the images to the processor 180 for processing, and finally presenting the graphics to the user through the display panel 141. The touch panel 131, also known as a touch screen, can collect the user's touch operations on or near it (such as the user's operation on the touch panel 131 or near the touch panel 131 using any suitable object or accessory such as a finger, stylus, etc.), and drive the corresponding connection device according to a pre-set program. Optionally, the touch panel 131 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch direction, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the touch point coordinates, and then sends it to the processor 180, and can receive the command sent by the processor 180 and execute it. In addition, the touch panel 131 can be implemented in various types such as resistive, capacitive, infrared and surface acoustic wave. In addition to the touch panel 131 and the camera 132, the input unit 130 can also include other input devices 133. Specifically, other input devices 132 can include but are not limited to one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a joystick, etc.

[0041] Among them, the display unit 140 can be used to display information input by the user or information provided to the user and various menus of the wearable device 100. The display unit 140 may include a display panel 141. Optionally, the display panel 141 may be configured in the form of a liquid crystal display unit (LCD, Liquid Crystal Display), an organic light-emitting diode (OLED, Organic Light-Emitting Diode), etc. Further, the touch panel 131 may cover the display panel 141. When the touch panel 131 detects a touch operation on or near it, it is transmitted to the processor 180 to determine the type of touch event, and then the processor 180 provides a corresponding visual output on the display panel 141 according to the type of touch event.

[0042] Among them, the visual output external display panel 141 that can be recognized by the human eye can be used as a display device in the embodiment of the present invention to display text information or image information. Figure 1 In the embodiment, the touch panel 131 and the display panel 141 are used as two independent components to implement the input and output functions of the wearable device 100. However, in some embodiments, the touch panel 131 and the display panel 141 can be integrated to implement the input and output functions of the wearable device 100.

[0043] In addition, the wearable device 100 may further include at least one sensor 150, such as a posture sensor, a distance sensor, a light sensor, and other sensors.

[0044] Specifically, the attitude sensor can also be called a motion sensor, and as one of the motion sensors, an angular velocity sensor (also called a gyroscope) can be listed. When it is configured in the wearable device 100, it is used to measure the rotational angular velocity of the wearable device 100 in motion when it deflects or tilts. Thus, the gyroscope can accurately analyze and determine the actual action of the user using the wearable device 100, and then perform corresponding operations on the wearable device 100. For example: somatosensory, shake (shaking the wearable device 100 to achieve some functions), and inertial navigation based on the motion state of the object when there is no signal from the Global Positioning System (GPS) (such as in a tunnel).

[0045] The sensor may also be a light sensor, which is mainly used to collect information such as the wavelength and intensity of various light rays to adjust the backlight intensity of the display panel 141 .

[0046] In addition, in the embodiment of the present invention, as the sensor 150, other sensors such as a barometer, a hygrometer, a thermometer and an infrared sensor may also be configured, which will not be described in detail here.

[0047] The light sensor may further include a proximity sensor, which may turn off the display panel 141 and / or the backlight when the wearable device 100 is moved to the ear.

[0048] The audio circuit 160, the speaker 161, and the microphone 162 can provide an audio interface between the user and the wearable device 100. The audio circuit 160 can transmit the electrical signal converted from the received audio data to the speaker 161, which is converted into a sound signal for output; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal, which is received by the audio circuit 160 and converted into audio data, and then the audio data is output to the processor 180 for processing, and then sent to, for example, another wearable device 100 through the RF circuit 110, or the audio data is output to the memory 120 for further processing.

[0049] WiFi is a short-range wireless transmission technology. The wearable device 100 can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 170. It provides users with wireless broadband Internet access. Figure 1 A WiFi module 170 is shown, but it is understandable that it is not a necessary component of the wearable device 100 and can be omitted as needed without changing the essence of the invention.

[0050] The processor 180 is the control center of the wearable device 100. It uses various interfaces and lines to connect various parts of the entire wearable device 100, and executes various functions and processes data of the wearable device 100 by running or executing software programs and / or modules stored in the memory 120, and calling data stored in the memory 120, so as to monitor the wearable device 100 as a whole. Optionally, the processor 180 may include one or more processing units; preferably, the processor 180 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications.

[0051] It is understandable that the above-mentioned modem processor may not be integrated into the processor 180.

[0052] The wearable device 100 may further include at least one motor 190. Since the wearable device 100 is a power-consuming device, the motor 190 may be a small motor. Meanwhile, a plurality of motors may be configured for the wearable device 100 according to the power that the motor can provide.

[0053] The wearable device 100 also includes a power supply (not shown) for supplying power to various components.

[0054] Preferably, the power supply can be logically connected to the processor 180 through a power management system, so that the power management system can manage charging, discharging, power consumption, etc. Although not shown, the wearable device 100 can also include a Bluetooth module, etc., which will not be repeated here.

[0055] It should be noted that the above Figure 1 The structure shown is only an example and is not limited to this embodiment of the present invention.

[0056] Figure 2 The schematic diagram of the structure of a Mems sensor power supply system for a wearable device provided by an embodiment of the present invention is exemplarily shown. Figure 2 As shown, the Mems sensor power supply system of the wearable device includes:

[0057] Mems sensor 210 , main battery 210 and sub-battery 220 . The sub-battery 220 supplies power to the Mems sensor 210 , and the main battery 210 supplies power to the modules other than the Mems sensor 210 .

[0058] Based on the above power supply system, the wearable device can obtain data from the Mems sensor 210 during use, and then periodically detect the power of the secondary battery 220 when determining that the user is exercising based on the data from the Mems sensor 210. If the power of the secondary battery 220 is less than a preset threshold, the main battery 210 is switched to power the Mems sensor 210.

[0059] The periodic period data may be set based on experience, and the preset threshold may be set based on experience.

[0060] Furthermore, if the power level of the secondary battery 220 is not less than a preset threshold, the secondary battery 220 continues to supply power to the Mems sensor 210 without switching to the main battery 210 .

[0061] In addition, when it is detected that the wearable device enters a dormant or stationary state, the main battery 210 can be switched to power the Mems sensor 210, thereby avoiding extra energy consumption caused by the wearable device detecting the power of the secondary battery 220 in real time.

[0062] It should be noted that the above system also includes a Mems micro vibration energy harvester 240 .

[0063] During the user's exercise, the energy during the exercise can be collected by the Mems micro vibration energy harvester 240 to charge the secondary battery 220. Since the Mems sensor 210 itself consumes less energy, the Mems sensor 210 can be powered by a micro small-capacity battery, so the secondary battery 220 can be a micro small-capacity battery, thereby saving space in the wearable device. Since most of the users of wearable devices are children, they love sports by nature. During exercise, a large amount of sports energy can be collected to charge the secondary battery 220, thereby ensuring the power supply of the secondary battery 220.

[0064] Based on the MEMS micro vibration energy harvester 240, the embodiment of the present invention also provides an energy recovery mechanism, such as Figure 3 As shown in the structure, the power supply system may further include a rectifying and charging circuit 250 , an energy storage circuit 260 , an intelligent voltage regulator 270 and an energy detector 280 .

[0065] The rectifying and charging circuit 250 is used to rectify the energy transmitted by the MEMS micro-vibration energy harvester 240 and transmit it to the energy storage circuit 260. That is, the rectifying and charging circuit 250 rectifies the electric quantity and transmits it to the energy storage circuit 260 to charge the auxiliary battery 220.

[0066] In addition, the rectifying and charging circuit 250 can also directly power the Mems sensor 210 through the intelligent voltage regulator 270. That is, the rectifying and charging circuit 250 is directly connected to the intelligent voltage regulator 270, and the intelligent voltage regulator 270 adjusts the voltage to adapt to the Mems sensor 210 to power the Mems sensor 210.

[0067] The energy storage circuit 260 is used to store the energy transmitted by the rectifying and charging circuit 250 in the secondary battery 220. The energy storage circuit 260 can also supply power to the energy detector 280 to facilitate the operation of the energy detector 280.

[0068] The intelligent voltage regulator 270 is used to transmit the power in the secondary battery 220 to the Mems sensor 210. In addition, the intelligent voltage regulator 270 can also adjust the voltage for the energy detector 280.

[0069] The energy detector 280 is used to detect the energy during the user's movement.

[0070] Based on the same technical concept, an embodiment of the present invention also provides a power supply method for a Mems sensor power supply system based on the above-mentioned wearable device, such as Figure 4 As shown, the method specifically includes:

[0071] Step 401, obtaining data of the Mems sensor.

[0072] Step 402: When it is determined that the user is exercising, periodically detect the power level of the secondary battery according to the data of the MEMS sensor.

[0073] Step 403: If the power level of the secondary battery is less than a preset threshold, switch to the main battery to power the Mems sensor.

[0074] Furthermore, the method also includes: when the wearable device is detected to enter a dormant or stationary state, switching the main battery to power the Mems sensor, thereby avoiding the extra energy consumption caused by the wearable device detecting the power level of the secondary battery in real time.

[0075] The above embodiments show that the Mems sensor power supply system of the wearable device includes a Mems sensor, a main battery and a secondary battery. The secondary battery supplies power to the Mems sensor, and the main battery supplies power to modules other than the Mems sensor. The data of the Mems sensor is obtained. When determining the user's movement based on the data of the Mems sensor, the power of the secondary battery is periodically detected. If the power of the secondary battery is less than a preset threshold, the main battery is switched to supply power to the Mems sensor. By setting a dual-battery structure and using the secondary battery to supply power to the frequently activated Mems sensor alone, the energy consumption of the main battery can be saved, the loss of the main battery can be reduced, and the life of the main battery can be increased.

[0076] Based on the same technical concept, an embodiment of the present invention further provides a computing device, including:

[0077] A memory for storing program instructions;

[0078] The processor is used to call the program instructions stored in the memory and execute the power supply method according to the obtained program.

[0079] Based on the same technical concept, an embodiment of the present invention further provides a computer-readable non-volatile storage medium, including computer-readable instructions. When a computer reads and executes the computer-readable instructions, the computer executes the above power supply method.

[0080] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0081] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0082] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0083] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0084] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A Mems sensor power supply system for a wearable device, characterized in that: include: A Mems sensor, a main battery and a secondary battery; the secondary battery supplies power to the Mems sensor, and the main battery supplies power to modules other than the Mems sensor; Acquiring data of the Mems sensor; Based on the data of the Mems sensor, when it is determined that the user is exercising, periodically detecting the power of the secondary battery; If the power level of the secondary battery is less than a preset threshold, the main battery is switched to power the Mems sensor.

2. The system according to claim 1, characterized in that When it is detected that the wearable device enters a dormant or stationary state, the main battery is switched to power the Mems sensor.

3. The system according to claim 1, characterized in that The system also includes a Mems micro vibration energy harvester; During the user's exercise, the energy during the exercise is collected by the MEMS micro-vibration energy harvester to charge the secondary battery.

4. The system according to claim 3, characterized in that The system also includes a rectifying and charging circuit, an energy storage circuit, an intelligent voltage regulator and an energy detector; The rectifying and charging circuit is used to rectify the energy transmitted by the MEMS micro-vibration energy harvester and transmit it to the energy storage circuit; The energy storage circuit is used to store the energy transmitted by the rectification and charging circuit in the secondary battery; The intelligent voltage regulator is used to transmit the power in the secondary battery to the Mems sensor; The energy detector is used to detect the energy during the movement of the user.

5. The system according to claim 4, characterized in that The rectifying and charging circuit is also used to directly supply power to the MEMS sensor through the intelligent voltage regulator.

6. The system according to claim 5, characterized in that The energy storage circuit is also used to power the energy detector.

7. A power supply method for a Mems sensor power supply system of a wearable device according to any one of claims 1 to 6, characterized in that: include: Acquiring data of the Mems sensor; Based on the data of the Mems sensor, when it is determined that the user is exercising, periodically detecting the power of the secondary battery; If the power level of the secondary battery is less than a preset threshold, the main battery is switched to power the Mems sensor.

8. The method according to claim 1, characterized in that The method further comprises: When it is detected that the wearable device enters a dormant or stationary state, the main battery is switched to power the Mems sensor.

9. A computing device, characterized in that include: A memory for storing program instructions; A processor, configured to call the program instructions stored in the memory, and execute the method according to any one of claims 7 to 8 according to the obtained program.

10. A computer-readable non-volatile storage medium, characterized in that: The method comprises computer-readable instructions, and when a computer reads and executes the computer-readable instructions, the computer executes the method according to any one of claims 7 to 8.

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