CN110825207A - Wearable device and control method thereof - Google Patents
Wearable device and control method thereof Download PDFInfo
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- CN110825207A CN110825207A CN201911017846.5A CN201911017846A CN110825207A CN 110825207 A CN110825207 A CN 110825207A CN 201911017846 A CN201911017846 A CN 201911017846A CN 110825207 A CN110825207 A CN 110825207A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
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Abstract
The embodiment of the invention discloses wearable equipment and a control method thereof, wherein the wearable equipment comprises a Global Navigation Satellite System (GNSS) chip, a first processor and a second processor connected with the first processor, and the second processor is used for switching the working state of the GNSS chip, wherein the GNSS chip is in communication connection with the first processor in a first working state and in communication connection with the second processor in a second working state, so that the energy consumption can be reduced, and the cruising ability of the wearable equipment can be improved.
Description
Technical Field
The invention relates to the technical field of wearable equipment, in particular to wearable equipment and a control method thereof.
Background
At present, wearable equipment has wide application in the fields of medical care, navigation, social networks, commerce, media and the like, and brings great convenience to life. However, most wearable devices have a small volume and a relatively small battery capacity, so that if the wearable device has a short endurance, the user experience of the wearable device is greatly influenced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a wearable device and a control method thereof, so as to reduce energy consumption and improve cruising ability of the wearable device.
In a first aspect, an embodiment of the present invention provides a wearable device, including:
a global navigation satellite system GNSS chip;
a first processor, and
the second processor is connected with the first processor; the second processor is configured to switch the working state of the GNSS chip;
the GNSS chip is in communication connection with the first processor in a first working state, and is in communication connection with the second processor in a second working state.
Optionally, the wearable device further includes a first switch, the first processor is connected to the first switch through a first interface, and the second processor is connected to the first switch through a second interface;
the second processor is configured to control the conducting state of the first switch to switch the operating state of the GNSS chip.
Optionally, the first processor is in communication connection with the GNSS chip through a third interface, and the second processor is in communication connection with the GNSS chip through a fourth interface;
the second processor is configured to control a pin state of the GNSS chip to switch an operating state of the GNSS chip.
Optionally, the second processor is configured to send a request for switching an operating state of a GNSS chip to the first processor in response to an instruction to enter a motion mode, and control the GNSS chip to switch to the second operating state in response to authorization information of the first processor.
Optionally, the second processor controls the GNSS chip to switch to the first operating state in response to an instruction to exit the motion mode.
Optionally, the first processor is configured to send an instruction to the second processor to acquire motion data;
the second processor is configured to send motion data in the motion mode to the first processor in response to the acquire motion data instruction.
Optionally, the first processor is configured to send a message to the second processor to enter a power saving mode in response to the wearable device entering the power saving mode;
the second processor is configured to control the GNSS chip to switch to a second working state in response to the message of entering the power saving mode;
wherein the first processor is configured to be in a power-off state in the power-saving mode.
Optionally, the wearable device includes a first display screen and a second display screen;
the first processor is configured to control the first display screen to display;
the second processor is configured to control the second display screen to display.
In a second aspect, an embodiment of the present invention provides a method for controlling a wearable device, where the wearable device includes a GNSS chip, a first processor, and a second processor, and the method includes:
controlling the second processor to switch the working state of the GNSS;
the GNSS chip is in communication connection with the first processor in a first working state, and is in communication connection with the second processor in a second working state.
Optionally, the wearable device includes a first switch, the first processor is connected to the first switch through a first interface, and the second processor is connected to the first switch through a second interface;
the controlling the first processor to switch the operating state of the GNSS comprises:
and controlling the conducting state of the first switch through the second processor to switch the working state of the GNSS.
In the embodiment of the invention, the wearable device comprises a Global Navigation Satellite System (GNSS) chip, a first processor and a second processor connected with the first processor, wherein the second processor is used for switching the working state of the GNSS chip, the GNSS chip is in communication connection with the first processor in the first working state and is in communication connection with the second processor in the second working state, and therefore, the embodiment of the invention realizes that the wearable device adopts different processors to process data generated by the GNSS chip under different functions, reduces energy consumption and improves the cruising ability of the wearable device.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a wearable device of a comparative example;
fig. 2 is a schematic view of a wearable device of a first embodiment of the invention;
fig. 3 is a schematic diagram of a wearable device of a second embodiment of the invention;
fig. 4 is a schematic view of a wearable device of a third embodiment of the invention;
fig. 5 is a schematic view of a wearable device of a fourth embodiment of the invention;
fig. 6 is a schematic diagram of a control method of a wearable device according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The motion and Navigation functions are important functions in wearable equipment, for example, a smart watch is taken as an example, the smart watch is integrated with a global Navigation Satellite system (gnss) (global Navigation Satellite system) chip, functions of map, Navigation, motion path tracking, speed matching monitoring and the like can be realized, and functions of remote position query, safety alarm and the like can be realized for the smart child watch.
GNSS (Global Navigation Satellite System) generally refers to all Satellite Navigation systems including Global, regional, and augmentation systems, such as GPS in the united states, Glonass in russia, Galileo in europe, beidou Satellite Navigation System in china, and related augmentation systems, such as WAAS (wide area augmentation System) in the united states, EGNOS (european geostationary Navigation overlay System) in europe, MSAS in japan (multi-functional transportation Satellite augmentation System), and the like, and also covers other Satellite Navigation systems under construction and to be built later.
Fig. 1 is a schematic view of a wearable device of a comparative example. As shown in fig. 1, the wearable device 1 includes a first processor 11, a second processor 12, a GNSS chip 13, and a display 14. The first processor 11 is a main processor, and is responsible for running an operating system (for example, an Android operating system or an Android operating system in a smart watch), and processing tasks with high computation amount, such as tasks of calling a map, navigating, and calling. The second processor 12 is a low power consumption coprocessor and is responsible for the acquisition and processing of sensor data and some low computation tasks. Wherein the first processor 11 and the second processor 12 control the display 14 to display corresponding information. Therefore, the low-power consumption coprocessor is used for processing tasks needing long-time uninterrupted data acquisition and processing, and the energy efficiency ratio of the wearable device can be improved.
As shown in fig. 1, in the wearable device 1, the GNSS chip 13 is in communication connection with the first processor 11, and the first processor 11 processes data of the GNSS chip in application tasks such as invoking a map and navigating. In the motion mode commonly used by the user, the second processor 12 is connected to the relevant motion sensor, collects and processes the data of the motion sensor, and wakes up the first processor 11 to process the data of the GNSS chip. Thus, in this comparative example, in the sport mode, the first processor 11 and the second processor 12 are required to operate simultaneously, and the power consumption of the entire sport mode is large.
Therefore, the embodiment provides the wearable device, so that different processors can process data of the GNSS chip when different functions are realized, the energy consumption of the system is reduced, and the cruising ability is improved.
Fig. 2 is a schematic view of a wearable device of a first embodiment of the present invention. As shown in fig. 2, the wearable device 2 of the present embodiment includes a first processor 21, a second processor 22, and a GNSS chip 23. The first processor 21 is communicatively coupled to the second processor 22. The second processor 22 is configured to switch the operating state of the GNSS chip 23. The GNSS chip 23 is in communication connection with the first processor 21 in the first operating state, and is in communication connection with the second processor 22 in the second operating state. In an alternative implementation, the first processor 21 is a main processor, and is responsible for operating an operating system and handling high-computation tasks, such as tasks of calling a map, navigating, and calling. The second processor 22 is a low power coprocessor and is responsible for the acquisition and processing of sensor data and some low computation tasks. Alternatively, the first processor 21 is in sleep mode when there are no high workload tasks being processed by the first processor 21.
In this implementation, the wearable device 2 further comprises a first display screen 24 and a second display screen 25.
In an optional implementation manner, the first processor 21 is in communication connection with the first display 24 through an MIPI (Mobile Industry processor interface), and controls the first display 24 to display the first information. The first information includes related information generated when the first processor 21 processes a high computation task, for example, when the first processor 21 processes a navigation task, the first display screen 24 is controlled to display a corresponding map and route. Optionally, the first display screen is an OLED (Organic Light-Emitting Diode) display screen. The second processor 21 is communicatively connected to the second display screen 25 via the I2C interface and controls the second display screen 25 to display the second information. The second information includes date, time, temperature and humidity information. For example, the second processor 21 collects and processes temperature and humidity sensor data, and controls the second display screen 25 to display the obtained temperature and humidity information. Optionally, the second display screen is a TN display screen or an LCD display screen. Therefore, the second display screen with lower energy consumption can continuously work, the first display screen with relatively higher energy consumption can be displayed only when the first processor outputs the first information, and the energy consumption is further reduced. It should be understood that the present embodiment does not limit the types of the interface between the first processor 21 and the first display screen 24, the interface between the first processor 22 and the second display screen 25, and the first display screen 24 and the second display screen 25, and the interface capable of transmitting information between the processor and the display screen, and the display screen capable of displaying related information may be applied to the present embodiment.
In an alternative implementation, the first display screen 24 and the second display screen 25 are placed on top of each other. It should be understood that the present embodiment does not limit the placement of the first display screen 24 and the second display screen 25, for example, the first display screen 24 and the second display screen 25 may be placed on the same plane.
In this embodiment, the wearable device 2 further includes a first switch S. The first processor 21 is connected to one end a of the first switch S through a first interface, the second processor 22 is connected to one end b of the first switch S through a second interface, and the GNSS chip 23 is connected to one end c of the first switch S. The second processor 22 is configured to control the control terminal CH _ SEL of the first switch S to switch the conducting state of the first switch S, and further switch the operating state of the GNSS chip 23. Optionally, the first interface and the second interface may adopt SPI interfaces, and it should be understood that other interfaces capable of implementing data transmission between the processor and the GNSS chip, such as a UART interface, an I2C interface, and the like, may be applied to this embodiment, and this embodiment is not limited thereto.
In an alternative implementation manner, the first switch S may be an analog switch, and it should be understood that this embodiment is not limited thereto, and switches capable of switching a connection state between the processor and the GNSS chip may be applied to this embodiment.
During the power-on process of the wearable device 2 of the present embodiment, the first processor 21 initializes the second processor 22 through an interface with the second processor 22, so that the second processor 22 loads the internal firmware. After the initialization of the second processor 22 is completed, the internal firmware of the second processor 22 runs, and the second processor 22 controls the first switch S to switch to the a terminal by controlling the control terminal CH _ SEL of the first switch S, so that the first processor 21 is connected with the GNSS chip 23 through the first interface, and then sends a message that the GNSS chip 23 has been switched to the first operating state to the first processor 21. After receiving the message that the GNSS chip is switched to the first working state, the first processor 21 initializes the GNSS chip 23, so that the GNSS chip 23 loads internal firmware, ephemeris data, and the like, and after the initialization of the GNSS chip 23 is completed, sends a sleep mode instruction to the GNSS chip 23, so that the GNSS chip 23 enters a sleep mode.
In the normal mode (i.e. the mode in which the first processor and the second processor of the wearable device are both in the on state), when the first processor 21 receives an application such as a map used by a user or navigation, the first processor 21 sends an instruction to exit from the sleep mode to the GNSS chip 23 through the first interface, so as to start the positioning function. The GNSS chip 23 sends real-time positioning data to the first processor 21 through the first interface, and the first processor 21 receives and processes the real-time positioning data, and sends first information (including information such as a map and a route) to the first display screen 24 for displaying. The first processor 21 sends a sleep mode instruction to the GNSS chip 23 through the first interface in response to the message that the application is ended, so that the GNSS chip 23 enters the sleep mode.
In the normal mode, when the user starts the sport function, the second processor 22 sends a request for switching the operating state of the GNSS chip 23 to the first processor 21 in response to an instruction to enter the sport mode, and controls the GNSS chip to switch to the second operating state in response to the authorization information of the first processor 21. That is, after receiving the authorization information of the first processor 21, the second processor 22 controls the first switch S to switch to the terminal b by controlling the control terminal CH _ SEL of the first switch S, so that the second processor 22 is connected to the GNSS chip 23 through the second interface. The second processor 22 sends an instruction to exit from the sleep mode to the GNSS chip 23 through the second interface, so as to start the positioning function. The GNSS chip 23 sends the real-time positioning data to the second processor 22 through the second interface, and the second processor 22 receives and processes the real-time positioning data, and sends the obtained second information to the second display screen 25 for display. The second information comprises information such as pace, movement distance and movement track acquired according to real-time positioning data, and information such as step counting and heart rate acquired according to sensor data related to movement.
In an alternative implementation, the second processor 22 stores the second information into a corresponding storage space. The memory space may be located inside the second processor 22 or outside the second processor 22.
After the sports mode is finished, the second processor 22 controls the GNSS chip 23 to switch to the first operating state in response to the instruction to exit the sports mode, and sends a message to the first processor 21 that the GNSS chip 23 has been switched to the first operating state. Optionally, after the first processor 21 is woken up, a command to acquire motion data is sent to the second processor 22, and the second processor 22 is configured to send the motion data (i.e. the second information) in the motion mode to the first processor 21 in response to the command to acquire motion data. In an optional implementation manner, the wearable device may further synchronize the motion data to the cloud and/or the user terminal (e.g., a mobile phone, a tablet computer, etc.) through a communication manner such as bluetooth, wifi, or a cellular network.
In an alternative implementation, the wearable device 2 may also be switched from the normal mode to a power saving mode to extend the endurance of the wearable device 2. In the power saving mode, the first processor 21 is in a power off state. The first processor 21 sends a message of entering the power saving mode to the second processor 22 in response to the wearable device entering the power saving mode, and the second processor 22 controls the GNSS chip 23 to switch to the second working state in response to the message of entering the power saving mode. If the user starts the exercise function in the power saving mode, the interaction between the second processor 22 and the GNSS chip 23, and the interaction between the second processor 22 and the second display 25 are similar to those described above, and will not be described herein again. Optionally, in the power saving mode, since the first processor 21 is in the power-off state and cannot control the GNSS chip, after the moving mode is finished, the second processor 22 may not switch the working state of the GNSS chip 23, that is, after the moving mode is finished, the second processor 22 may send a sleep mode instruction to the GNSS chip, so that the GNSS chip 23 enters the sleep mode.
In an alternative implementation, after the first processor 21 is powered back on, a command to acquire motion data is sent to the second processor 22, and the second processor 22 is configured to send the motion data (i.e. the second information) generated in the power saving mode to the first processor 21 in response to the command to acquire motion data. Optionally, the second processor 22 controls the GNSS chip 23 to switch to the first operating state in response to the power-on message of the first processor 21, and sends a message that the GNSS chip 23 has been switched to the first operating state to the first processor 21.
In this embodiment, the operating state of the GNSS chip is switched by the second processor, so that when the first processor executes an application such as a map or a navigation, the GNSS chip sends the real-time positioning data to the first processor, and when the second processor executes an application in a motion mode, the GNSS chip sends the real-time positioning data to the second processor, thereby, when a motion function is started, the first processor does not need to be waken to receive the real-time positioning data, the energy consumption of the first processor is reduced, and the cruising ability of the wearable device is improved.
Fig. 3 is a schematic diagram of a wearable device of a second embodiment of the present invention. As shown in fig. 3, the wearable device 3 of the present embodiment includes a first processor 31, a second processor 32, a GNSS chip 33, and a display screen 34. The first processor 31 is connected to the second processor 32. The second processor 32 is configured to switch the operating state of the GNSS chip 33. The GNSS chip 33 is communicatively connected to the first processor 31 in the first operating state, and is communicatively connected to the second processor 32 in the second operating state. In an alternative implementation, the first processor 31 is a main processor, and is responsible for operating an operating system and handling high-computation tasks, such as tasks of calling a map, navigating, and calling. The second processor 32 is a low power coprocessor and is responsible for the acquisition and processing of sensor data and some low computation tasks. Alternatively, the first processor 31 is in sleep mode when there are no high workload tasks to be processed by the first processor 31.
In an alternative implementation, as shown in fig. 3, the first processor 31 is connected to the display 34 through an interface (e.g., MIPI interface, etc.), and the second processor is connected to the display 34 through another interface (e.g., SPI interface). When the first processor 31 executes a task with a high computation amount, the corresponding first information is sent to the display 34 through the MIPI interface to be displayed, and when the second processor executes a task with a low computation amount, the corresponding second information is sent to the display 34 through the SPI interface to be displayed. In another alternative implementation, the first processor 31 and the second processor 32 are connected to the MIPI interface of the display screen 34 through the MIPI bus by using respective MIPI interfaces.
In this embodiment, the interaction between the first processor 31, the second processor 32 and the GNSS chip 33 is similar to that of the first embodiment of the present invention, and is not described herein again.
In this embodiment, the operating state of the GNSS chip is switched by the second processor, so that when the first processor executes an application such as a map or a navigation, the GNSS chip sends the real-time positioning data to the first processor, and when the second processor executes an application in a motion mode, the GNSS chip sends the real-time positioning data to the second processor, thereby, when a motion function is started, the first processor does not need to be waken to receive the real-time positioning data, the energy consumption of the first processor is reduced, and the cruising ability of the wearable device is improved.
Fig. 4 is a schematic view of a wearable device of a third embodiment of the present invention. As shown in fig. 4, the wearable device 4 of the present embodiment includes a first processor 41, a second processor 42, and a GNSS chip 43. The first processor 41 is connected to the second processor 42. The second processor 42 is configured to switch the operating state of the GNSS chip 43. The GNSS chip 43 is in communication connection with the first processor 41 in the first operating state, and is in communication connection with the second processor 42 in the second operating state. In an alternative implementation, the first processor 41 is a main processor, and is responsible for operating the operating system and handling high-computation tasks, such as tasks of calling maps, navigating, and calling. The second processor 42 is a low power coprocessor and is responsible for the acquisition and processing of sensor data and some low computational tasks. Alternatively, the first processor 41 is in sleep mode when there are no high workload tasks being processed by the first processor 41.
In this implementation, the wearable device 4 further comprises a first display screen 44 and a second display screen 45.
In an alternative implementation manner, the first processor 41 is connected to the first display 44 through a Mobile Industry Processor Interface (MIPI), and controls the first display 44 to display the first information. The first information includes related information generated when the first processor 41 processes a high computation task, for example, when the first processor 41 processes a navigation task, the first display 44 is controlled to display a corresponding map and route. Optionally, the first display screen is an OLED (Organic Light-Emitting Diode) display screen. The second processor 41 is connected to the second display 45 through an I2C interface, and controls the second display 45 to display the second information. The second information includes date, time, temperature and humidity information. For example, the second processor 41 collects and processes temperature and humidity sensor data, and controls the second display screen 45 to display the obtained temperature and humidity information. Optionally, the second display screen is a TN display screen or an LCD display screen. Therefore, the second display screen with lower energy consumption can continuously work, the first display screen with relatively higher energy consumption can be displayed only when the first processor outputs the first information, and the energy consumption is further reduced.
In an alternative implementation, the first display screen 44 and the second display screen 45 are placed on top of each other. It should be understood that the present embodiment does not limit the placement of the first display screen 44 and the second display screen 45, for example, the first display screen 44 and the second display screen 45 may be placed on the same plane.
In this embodiment, the first processor 41 is connected to the GNSS chip 43 through a third interface, and the second processor 42 is connected to the GNSS chip 43 through a fourth interface. The second processor 42 is configured to control the pin status of the GNSS chip 43 to switch the operating status of the GNSS chip 43.
As shown in fig. 4, in an alternative implementation, the first processor 41 is connected to the GNSS chip 43 through the SPI interface, the second processor 42 is connected to the GNSS chip 43 through the I2C interface, and the second processor 42 switches the operating state of the GNSS chip 43 by controlling the state of the HOST _ SEL pin of the GNSS chip 43. It should be understood that the present embodiment does not limit the interface used by the processor and the GNSS chip, for example, the second processor may also sample the UART interface or the SPI interface to connect and communicate with the GNSS chip.
In an alternative implementation, the second processor 42 may control the HOST _ SEL pin of the GNSS chip 43 to be low, so that the GNSS chip 43 is switched to the first operating state, and control the HOST _ SEL pin of the GNSS chip 43 to be high, so that the GNSS chip 43 is switched to the second operating state. It should be understood that, in another alternative implementation, the second processor 42 may also control the HOST _ SEL pin of the GNSS chip 43 to be low and the HOST _ SEL pin of the GNSS chip 43 to be high, so that the GNSS chip 43 is switched to the second operating state.
During the power-on process of the wearable device 4 of the present embodiment, the first processor 41 initializes the second processor 42 through an interface with the second processor 42, so that the second processor 42 loads the internal firmware. After the initialization of the second processor 42 is completed, the internal firmware of the second processor 42 is run, and the second processor 42 controls the HOST _ SEL pin of the GNSS chip 43 to be low, which is described in this embodiment by taking the HOST _ SEL pin of the GNSS chip 43 as low, and the GNSS chip 43 is connected to and communicates with the first processor 41 through the SPI interface as an example.
After receiving the message that the initialization of the second processor 42 is completed, the first processor 41 initializes the GNSS chip 43, so that the GNSS chip 43 loads the internal firmware, the ephemeris data, and the like, and after the initialization of the GNSS chip 43 is completed, sends a sleep mode command to the GNSS chip 43, so that the GNSS chip 43 enters the sleep mode.
In the present embodiment, the function of the HOST _ SEL pin is defined in the internal firmware of GNSS chip 43, and therefore, GNSS chip 43 does not respond to the function of the HOST _ SEL pin until the initialization of GNSS chip 43 is completed.
In the normal mode (i.e. the mode in which the first processor and the second processor of the wearable device are both in the on state), when the first processor 41 receives an application such as a map or navigation used by a user, the first processor 41 sends an instruction to exit from the sleep mode to the GNSS chip 43 through the SPI interface, so as to start the positioning function. The GNSS chip 43 sends real-time positioning data to the first processor 41 through the SPI interface, and the first processor 41 receives and processes the real-time positioning data, and sends first information (including information such as a map and a route) to the first display screen 44 for displaying. The first processor 41 sends a sleep mode command to the GNSS chip 43 through the SPI interface in response to the message that the application is ended, so that the GNSS chip 23 enters the sleep mode.
In the normal mode, when the user starts the sport function, the second processor 42 sends a request for switching the operating state of the GNSS chip 43 to the first processor 41 in response to an instruction to enter the sport mode, and controls the HOST _ SEL pin of the GNSS chip to be high in response to the authorization information of the first processor 41, that is, controls the GNSS chip 43 to be switched to the second operating state. The second processor 42 sends an exit sleep mode command to the GNSS chip 43 through the I2C interface to turn on the positioning function. The GNSS chip 43 sends the real-time positioning data to the second processor 42 through the I2C interface, and the second processor 42 receives and processes the real-time positioning data, and sends the obtained second information to the second display screen 45 for display. The second information comprises information such as pace, movement distance and movement track acquired according to real-time positioning data, and information such as step counting and heart rate acquired according to sensor data related to movement.
In an alternative implementation, the second processor 42 stores the second information in a corresponding storage space. The memory space may be located inside the second processor 42 or outside the second processor 42.
After the moving mode is finished, the second processor 42 controls the HOST _ SEL pin of the GNSS chip 23 to be low, that is, controls the GNSS chip 43 to switch to the first operating state in response to the instruction to exit the moving mode, and sends a message that the GNSS chip 43 has been switched to the first operating state to the first processor 41. Optionally, after the first processor 41 is woken up, a command to acquire motion data is sent to the second processor 42, and the second processor 42 is configured to send the motion data (i.e. the second information) in the motion mode to the first processor 41 in response to the command to acquire motion data. In an optional implementation manner, the wearable device may further synchronize the motion data to the cloud and/or the user terminal (e.g., a mobile phone, a tablet computer, etc.) through a communication manner such as bluetooth, wifi, or a cellular network.
In an alternative implementation, the wearable device 4 may also switch from the normal mode to a power saving mode to extend the endurance of the wearable device 4. In the power saving mode, the first processor 41 is in a power off state. The first processor 41 sends a message of entering the power saving mode to the second processor 42 in response to the wearable device entering the power saving mode, and the second processor 42 controls the HOST _ SEL pin of the GNSS chip 43 to be high in response to the message of entering the power saving mode, that is, controls the GNSS chip 43 to switch to the second operating state. If the user starts the exercise function in the power saving mode, the interaction between the second processor 42 and the GNSS chip 43 and the interaction between the second processor 42 and the second display 45 are similar to those in the normal mode, and will not be described herein again. Optionally, in the power saving mode, since the first processor 41 is in the power-off state and cannot control the GNSS chip, after the exercise mode is ended, the second processor 42 does not switch the operating state of the GNSS chip 43, that is, after the exercise mode is ended, the second processor 42 does not switch the HOST _ SEL pin of the GNSS chip to be low to switch the GNSS chip 43 to the first operating state. Optionally, after the moving mode is ended, the second processor 42 sends a sleep mode command to the GNSS chip, so that the GNSS chip 43 enters the sleep mode.
In an alternative implementation, after the first processor 41 is powered back on, the motion data acquiring instruction is sent to the second processor 42, and the second processor 42 is configured to send the motion data (i.e. the second information) generated in the power saving mode to the first processor 41 in response to the motion data acquiring instruction. Optionally, the second processor 42 controls the HOST _ SEL pin of the GNSS chip 23 to be low in response to the power-on message of the first processor 41 to control the GNSS chip 43 to switch to the first operating state, and sends a message to the first processor 41 that the GNSS chip 43 has been switched to the first operating state.
In this embodiment, the operating state of the GNSS chip is switched by the second processor, so that when the first processor executes an application such as a map or a navigation, the GNSS chip sends the real-time positioning data to the first processor, and when the second processor executes an application in a motion mode, the GNSS chip sends the real-time positioning data to the second processor, thereby, when a motion function is started, the first processor does not need to be waken to receive the real-time positioning data, the energy consumption of the first processor is reduced, and the cruising ability of the wearable device is improved.
Fig. 5 is a schematic view of a wearable device of a fourth embodiment of the present invention. The wearable device 5 of the present embodiment includes a first processor 51, a second processor 52, a GNSS chip 53, and a display 54. The first processor 51 is connected to the second processor 52. The second processor 52 is configured to switch the operating state of the GNSS chip 53. The GNSS chip 53 is in communication connection with the first processor 51 in the first operating state, and is in communication connection with the second processor 52 in the second operating state. In this embodiment, the second processor 52 controls the operating state of the GNSS chip 53 by controlling a pin HOST _ SEL of the GNSS chip 53.
In an alternative implementation, the first processor 51 is a main processor, and is responsible for operating an operating system and handling high-computation tasks, such as tasks of calling a map, navigating, and calling. The second processor 52 is a low power co-processor that is responsible for the acquisition and processing of sensor data, as well as some low computational tasks. Alternatively, the first processor 51 may be in a sleep mode when there are no high-workload tasks being processed by the first processor 51.
In an alternative implementation, as shown in fig. 5, the first processor 51 is connected to the display 54 through one interface (e.g., MIPI interface, etc.), and the second processor is connected to the display 54 through another interface (e.g., SPI interface). When the first processor 51 executes a task with a high computation amount, the corresponding first information is sent to the display 54 through the MIPI interface to be displayed, and when the second processor executes a task with a low computation amount, the corresponding second information is sent to the display 54 through the SPI interface to be displayed. In another alternative implementation, the first processor 51 and the second processor 52 are connected to the MIPI interface of the display 54 through the MIPI bus by using respective MIPI interfaces.
In this embodiment, the interaction among the first processor 51, the second processor 52 and the GNSS chip 53 is similar to that in the third embodiment of the present invention, and is not described herein again.
In this embodiment, the operating state of the GNSS chip is switched by the second processor, so that when the first processor executes an application such as a map or a navigation, the GNSS chip sends the real-time positioning data to the first processor, and when the second processor executes an application in a motion mode, the GNSS chip sends the real-time positioning data to the second processor, thereby, when a motion function is started, the first processor does not need to be waken to receive the real-time positioning data, the energy consumption of the first processor is reduced, and the cruising ability of the wearable device is improved.
Fig. 6 is a schematic diagram of a control method of a wearable device according to a fifth embodiment of the present invention. The wearable device of the embodiment comprises a first processor, a second processor and a GNSS chip. In an alternative implementation, the first processor is a main processor, and is responsible for operating an operating system and processing tasks with high computation, such as tasks of calling a map, navigating, calling and the like. The second processor is a low-power consumption coprocessor and is responsible for collecting and processing sensor data and tasks with low computation amount. Optionally, the first processor is in sleep mode when no high-workload tasks are being processed by the first processor. As shown in fig. 6, the control method of the wearable device of the present embodiment includes the following steps:
in step S100, the second processor controls the GNSS chip to switch to the first working state to control the first processor to be in communication with the GNSS chip.
In step S200, in the motion mode, the second processor controls the GNSS chip to switch to the second working state to control the second processor to be in communication connection with the GNSS chip.
It should be understood that the steps S100 and S200 are not performed in a strict sequence, and in the non-power saving mode, after exiting the sport mode, the second processor controls the GNSS chip to switch to the first operating state to control the first processor to be communicatively connected with the GNSS chip.
In an optional implementation, the wearable device includes a first switch, the first processor is connected to the first switch through a first interface, and the second processor is connected to the first switch through a second interface.
Step S100 may be:
the second processor controls the GNSS to be switched to a first working state by controlling the first switch to be switched to a first conduction state.
Step S200 may be:
the second processor controls the GNSS to switch to a second working state by controlling the first switch to a second conduction state.
In another optional implementation manner, the first processor is connected to the GNSS chip through a third interface, and the second processor is connected to the GNSS chip through a fourth interface.
Step S100 may be:
the second processor controls the GNSS chip to be switched into a first pin state by controlling the pin of the GNSS chip to be switched into a first working state.
Step S200 may be:
the second processor controls the GNSS chip to be switched into a first working state by controlling the pin of the GNSS chip to be switched into a second pin state.
In this embodiment, the operating state of the GNSS chip is switched by the second processor, so that when the first processor executes an application such as a map or a navigation, the GNSS chip sends the real-time positioning data to the first processor, and when the second processor executes an application in a motion mode, the GNSS chip sends the real-time positioning data to the second processor, thereby, when a motion function is started, the first processor does not need to be waken to receive the real-time positioning data, the energy consumption of the first processor is reduced, and the cruising ability of the wearable device is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wearable device, comprising:
a global navigation satellite system GNSS chip;
a first processor, and
the second processor is connected with the first processor; the second processor is configured to switch the working state of the GNSS chip;
the GNSS chip is in communication connection with the first processor in a first working state, and is in communication connection with the second processor in a second working state.
2. The wearable device of claim 1, further comprising a first switch, the first processor connected to the first switch via a first interface, the second processor connected to the first switch via a second interface;
the second processor is configured to control the conducting state of the first switch to switch the operating state of the GNSS chip.
3. The wearable device of claim 1, wherein the first processor is communicatively coupled to the GNSS chip via a third interface and the second processor is communicatively coupled to the GNSS chip via a fourth interface;
the second processor is configured to control a pin state of the GNSS chip to switch an operating state of the GNSS chip.
4. The wearable device according to any of claims 1-3, wherein the second processor is configured to send a request to the first processor to switch the GNSS chip operating state in response to an instruction to enter a motion mode, and to control the GNSS chip to switch to the second operating state in response to authorization information of the first processor.
5. The wearable device of claim 4, wherein the second processor controls the GNSS chip to switch to a first operating state in response to an instruction to exit the motion mode.
6. The wearable device of claim 5, wherein the first processor is configured to send a get motion data instruction to the second processor;
the second processor is configured to send motion data in the motion mode to the first processor in response to the acquire motion data instruction.
7. The wearable device of claim 1, wherein the first processor is configured to send a message to the second processor to enter a power saving mode in response to the wearable device entering the power saving mode;
the second processor is configured to control the GNSS chip to switch to a second working state in response to the message of entering the power saving mode;
wherein the first processor is configured to be in a power-off state in the power-saving mode.
8. The wearable device of claim 1, wherein the wearable device comprises a first display screen and a second display screen;
the first processor is configured to control the first display screen to display;
the second processor is configured to control the second display screen to display.
9. A control method of a wearable device, wherein the wearable device comprises a Global Navigation Satellite System (GNSS) chip, a first processor and a second processor, the method comprising:
controlling the second processor to switch the working state of the GNSS;
the GNSS chip is in communication connection with the first processor in a first working state, and is in communication connection with the second processor in a second working state.
10. The method of claim 9, wherein the wearable device comprises a first switch, wherein the first processor is connected to the first switch via a first interface, and wherein the second processor is connected to the first switch via a second interface;
the controlling the first processor to switch the operating state of the GNSS comprises:
and controlling the conducting state of the first switch through the second processor to switch the working state of the GNSS.
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