CN110764397B - Intelligent watch and mode switching method thereof - Google Patents
Intelligent watch and mode switching method thereof Download PDFInfo
- Publication number
- CN110764397B CN110764397B CN201810835553.7A CN201810835553A CN110764397B CN 110764397 B CN110764397 B CN 110764397B CN 201810835553 A CN201810835553 A CN 201810835553A CN 110764397 B CN110764397 B CN 110764397B
- Authority
- CN
- China
- Prior art keywords
- control unit
- power management
- power
- slave control
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
Abstract
The embodiment of the invention provides an intelligent watch and a mode switching method thereof, wherein the intelligent watch is provided with a power supply management unit which is respectively provided with two control signal input lines. When the power management unit receives the high-level voltage signal output by the master control unit and/or the slave control unit, the power management unit can output the high-level voltage signal to provide power voltage for the slave control unit electrically connected with the power management unit. When the power management unit is in a power-on state under the action of the main control unit, the slave control unit outputs a high-level voltage signal to control the power management unit to provide power voltage for the slave control unit. At this time, the power-on state of the master control unit will not affect the power-on states of the slave control unit and the power management unit. When the intelligent watch is in a watch mode and other modes with lower task loads, unnecessary energy consumption is saved for the intelligent watch.
Description
Technical Field
The disclosure relates to the technical field of smart watches, in particular to a smart watch and a mode switching method thereof.
Background
The smart watch, as a wearable mobile device, has one or more data processing functions such as reminding, navigation, monitoring, interaction and the like in addition to a time indicating function, and because the design space of the smart watch is limited, the battery capacity of the smart watch is inevitably limited, so that contradictions are generated between the data processing function with high power consumption and a low-capacity battery. Therefore, how to improve the endurance of the smart watch to the maximum extent under the limited battery capacity becomes a difficult problem to be solved urgently.
Therefore, the conventional smart watch is generally divided into an operation mode, a standby mode and a shutdown mode, and a main processor and a secondary processor are arranged to correspondingly execute task instructions with different modes and different power consumptions, wherein the main processor has high processing performance and high power consumption, and is mainly used for executing high-load tasks (such as displaying a map, calculating real-time parameters, synchronizing data, displaying communication information and the like), so that the smart watch can smoothly run various complex application programs, and is in the operation mode at the moment. The slave processors have weak processing performance but low power consumption, and are mainly used for performing low-load tasks (for example, processing sensor data in a standby state). Therefore, when a low-load task is processed, the working frequency of the main processor is greatly reduced, and the power consumption of the intelligent watch is reduced to a certain extent.
However, in the existing solution, the master processor still needs to be in the power-on state in the standby state to supply power to the slave processor, and identify different task types (high-load task or low-load task) so as to control the slave processor to respond to the low-load task. The continuous power-on state of the main processor undoubtedly increases the power consumption of the smart watch.
Disclosure of Invention
The embodiment of the invention provides an intelligent watch and a mode switching method thereof, and aims to solve the problem that in the prior art, the energy consumption of the intelligent watch is increased due to the fact that a main processor is in a continuous power-on state.
In a first aspect, the present invention provides a smart watch comprising: a master control unit, a slave control unit and a power management unit, wherein,
the master control unit is electrically connected with the slave control unit through a first interface;
the control signal output end of the master control unit and the control signal output end of the slave control unit are both connected with the enabling end of the power management unit, so that the power management unit outputs power supply voltage from the output end of the power management unit when receiving high-level signals input by the master control unit and/or the slave control unit;
the output end of the power management unit is electrically connected with the power access end of the slave control unit.
In a second aspect, the present invention further provides a mode switching method for a smart watch, including:
the method comprises the steps that after a main control unit receives a trigger instruction for switching from a shutdown mode to an operation mode, a high-level signal is output to an enabling end of a power management unit, and the power management unit outputs power supply voltage to a slave control unit;
the master control unit controls the slave control unit to output a high-level signal to an enabling end of the power management unit through the first interface after receiving a trigger instruction for switching the operation mode to the watch mode, and closes a power supply circuit of the master control unit after receiving a first confirmation instruction fed back by the slave control unit.
The beneficial effect of this application is as follows:
the application provides a set up a power management unit in the intelligent wrist-watch, this power management unit is provided with two way control signal input lines respectively. When the power management unit receives the high-level voltage signal output by the master control unit and/or the slave control unit, the power management unit can output the high-level voltage signal so as to provide power voltage for the slave control unit electrically connected with the output end of the power management unit. Therefore, in the application, the voltage output of the power management unit is respectively controlled by two circuits, so that after the power management unit is in a power-on state under the action of the main control unit, the power management unit can be controlled to provide power voltage for the slave control unit by outputting a high-level voltage signal through the slave control unit. At this point, the power-on state of the master control unit will no longer have an effect on the power-on state of the slave control unit. Through the circuit design and the function implementation mode, the slave control unit can be independently operated when the main control unit is in a power-down mode, so that unnecessary energy consumption is saved for the intelligent watch when the intelligent watch is in a mode with lower task load.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a circuit diagram of a smart watch according to an embodiment of the present application;
fig. 2 is a circuit diagram of another smart watch provided in an embodiment of the present application;
fig. 3 is a flowchart of a mode switching method of a smart watch according to an embodiment of the present application;
fig. 4 is a flowchart of another mode switching method for a smart watch according to an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Aiming at the technical problem that the continuous power-on state of a main processor inevitably increases the energy consumption of a smart watch in the prior art, the application provides the smart watch and a mode switching method thereof, and the core idea is as follows: a power management unit 30 is provided, and the power management unit 30 is respectively provided with two control signal input lines. When the power management unit 30 receives the high level voltage signal output from the master control unit 10 and/or the slave control unit 20, it can output the high level voltage signal to supply the power voltage to the slave control unit electrically connected to the output terminal of the power management unit. It can be seen that, in the present application, the power supply and the voltage output of the power management unit 30 are controlled by two circuits respectively, so that after the power management unit 30 is in the power-on state under the action of the master control unit 10, the slave control unit 20 is controlled to output a high-level voltage signal, and the power management unit 30 can be controlled to provide the power supply voltage for itself and the slave control unit 20. At this point, the power-on state of the master control unit will no longer have an effect on the power-on states of the slave control unit 20 and the power management unit 30. Through the circuit design and the function implementation mode, the slave control unit 20 can be independently operated when the master control unit 10 is in a power-down mode, so that unnecessary energy consumption is saved for the intelligent watch when the intelligent watch is in a watch mode and other modes with lower task load. The following further description is made in conjunction with the accompanying drawings and the specific embodiments.
Example one
Referring to fig. 1, a circuit diagram of a smart watch according to an embodiment of the present application is shown. As can be seen from fig. 1, the smart watch provided in this embodiment includes: the system comprises a master control unit 10, a slave control unit 20 and a power management unit 30, wherein the master control unit 10 is electrically connected with the slave control unit 20 through a first Interface, so as to realize control of the master control unit 10 on the slave control unit 20 and feedback of response of the slave control unit 20 to a control instruction, and in this embodiment, the first Interface may be a common processor Interface such as an SPI Interface (full name of Serial Peripheral Interface, Serial Peripheral Interface), a Serial port (UART Interface), or an I2C Interface. The slave control unit 20 may be a SensorHUB (chinese name: intelligent sensing hub) for connecting and processing data from various sensor devices, and the slave control unit 20 is also connected with a plurality of sensors for collecting and processing related sensor data in practical applications.
The control signal output end 12 of the master control unit 10 and the control signal output end 21 of the slave control unit 20 are both connected with the enable end 35 of the power management unit 30, so that the power management unit outputs a power supply voltage from the output end 33 of the power management unit 30 when receiving a high level signal input by the master control unit and/or the slave control unit; the output terminal 33 of the power management unit 30 is electrically connected to the power input terminal 22 of the slave control unit 20. The power management unit 30 is configured to provide a power voltage to the slave control unit 20 when receiving a high level voltage signal input by the master control unit 10 and/or the slave control unit 20.
In this embodiment, the power management unit 30 is further provided with two enable control signal input lines, which are respectively an input end from the main control unit 10 (the control signal output end 12) to the power management unit 30 and an input end from the control unit 20 to the power management unit 30, and when the power management unit 30 receives a high level voltage signal input by the main control unit 10 and/or the slave control unit 20, the power management unit can output a power supply voltage, so as to provide the power supply voltage for the slave control unit 20 electrically connected to the output end of the power management unit 30.
It can be seen that, in the present application, the voltage output of the power management unit 30 is controlled by two circuits respectively, so that when the power management unit 30 is in the power-on state under the action of the master control unit 10, the slave control unit 20 is controlled to output a high-level voltage signal, and at this time, the power-on state of the master control unit will not affect the power-on state of the slave control unit 20. Through the circuit design and the function implementation mode, the slave control unit 20 can be independently operated when the master control unit 10 is in a power-down mode, so that unnecessary energy consumption is saved for the intelligent watch when the intelligent watch is in a watch mode and other modes with lower task load.
Example two
Referring to fig. 2, a circuit diagram of another smart watch according to an embodiment of the present application is shown. As can be seen from fig. 2, in the present embodiment, the power management unit 30 includes a logic or gate circuit 31 and a power management circuit 32, wherein a first input terminal a of the logic or gate circuit 31 is electrically connected to the control signal output terminal 12 of the master control unit 10, and a second input terminal B of the logic or gate circuit 31 is electrically connected to the control signal output terminal 21 of the slave control unit 20. The output terminal Y of the or gate 31 is electrically connected to the enable terminal EN of the power management circuit 32. The logical or gate circuit 31 outputs a high level voltage signal when the control signal output terminal 12 of the main control unit 10 and/or the control signal output terminal 21 of the slave control unit 20 output a high level voltage signal. In this embodiment, the master control unit 10 and the slave control unit 20 simultaneously control the logical or gate 31, thereby implementing dual control of the power management circuit 32.
In general, the power supply voltage of the master control unit 10 and the slave control unit 20 is 1.8V, the high level voltage output by the or logic circuit 31 is about 1.4V, and is used for controlling the on/off of the power management circuit 32(DC-DC), the power supply of the DC-DC is the VIN pin power supply, that is, the battery voltage is directly supplied, and the DC-DC converts the battery voltage into the low voltage of 1.8V to supply power to the slave control unit. The power input end 36 of the or gate circuit 31 is electrically connected to the power output end 11 of the main control unit 10 and the output end VOUT of the power management circuit 32, respectively, and the output end VOUT of the power management circuit 32 is electrically connected to the power input end 22 of the slave control unit 20. The two power access circuits can independently supply power to the logic or gate circuit 31, so that the opening of the logic or gate circuit 31 and the subsequent power supply of the power management circuit 32 to the slave control unit 20 can be incompletely controlled by the master control unit 10, and the existing power management circuit does not need to be changed, thereby realizing the common enabling of two enabling signals of the master control unit and the slave control unit to the power management circuit.
Further, the smart watch further comprises a display unit 40, and the display unit 40 is electrically connected with the main control unit 10 through a third interface; the display unit 40 is electrically connected to the slave control unit 20 through a second interface. The second interface and the third interface may implement data transmission and other display control of the display unit 40 by the master control unit 10 and the slave control unit 20, respectively. In this embodiment, the second Interface may be an MIPI Interface (Mobile Industry Processor Interface) or an SPI Interface, and the third Interface may be an SPI Interface or an MIPI Interface. In other embodiments of this application, display element 40 also can set up a two way SPI interfaces, and main control unit 10 and slave control unit 20 are connected to the electricity respectively, or, set up an SPI interface, switch between main control unit 10 and slave control unit 20 through the switch, and above two kinds of modes are the replacement scheme of the second interface that sets up alone in this embodiment and third interface, and the equal ability realizes main control unit 10 and slave control unit 20 to display element 40's display control. In this embodiment, the display unit 40 may include a display screen and a processor having one end connected to the display screen and the other end electrically connected to the master control unit 10 or the slave control unit 20.
In the prior art, the slave control unit 20 and the display unit 40 are not connected, but the slave control unit 20 and the display unit 40 are connected through the second interface, so that when the master control unit is powered off and the slave control unit 20 works independently, a user can still interact with the smart watch through the display unit 40.
In the present application, the or gate circuit 31 is provided with two power supply circuits, and when the main control unit 10 supplies power to the or gate circuit 31 alone, or the power management circuit 32 supplies power to the or gate circuit 31 alone, the current supplied alone may flow to another circuit which is not supplied with power, which may cause adverse effect on the power supply of another circuit which is not supplied with power, and finally affect the normal power supply of the or gate circuit 31.
Therefore, in order to effectively isolate the two power supply circuits of the or gate 31 and prevent the two power supply circuits from crosstalk, the present embodiment provides a first diode 37 and a second diode 34 in the power management unit 30, wherein the first diode 37 is disposed between the main control unit 10 and the or gate 31, specifically, the anode of the first diode 37 is electrically connected to the power output terminal 11 of the main control unit 10 (as shown by the dashed line in fig. 2), and the cathode of the first diode 37 is electrically connected to the power input terminal of the or gate 31. The second diode 34 is disposed between the power management circuit 32 and the logic or gate circuit 31, specifically, an anode of the second diode 34 is electrically connected to an output end of the power management circuit 32 (as shown by a dotted line in fig. 2), and a cathode of the second diode 34 is electrically connected to a power supply access end of the logic or gate circuit 31. The present embodiment can effectively prevent crosstalk between two power supply circuits of the or gate circuit 31 by using the characteristic that the diode only allows current to flow in a single direction.
Further, the smart watch provided in this embodiment further includes a starting circuit 50, one end of the starting circuit 50 is grounded, the other end of the starting circuit 50 is connected to the master control unit 10 through a first key pin 51, and is connected to the slave control unit 20 through a second key pin 52, the starting circuit further includes a starting key 53, and the starting key 53 is used for controlling a grounded state of the starting circuit 50. When the start key 53 is pressed, the start circuit 50 is in a grounded state, and at this time, the first key pin 51 and the second key pin 52 are in a low level state, and the pins are changed from the high level state to the low level state, which can be used as a trigger signal of a key event, and can trigger the signal of the master control unit 10 or the slave control unit 20 to be interrupted, thereby informing the master control unit 10 or the slave control unit 20 to execute a related control operation.
Of course, in this embodiment, the first key pin 51 disposed in the master control unit 10 and the second key pin 52 disposed in the slave control unit 20 should both have a corresponding pull-up resistor, and the pull-up resistor can keep the first key pin 51 and the second key pin 52 in a high level state under the condition that there is no key event, where the setting of the pull-up resistor belongs to the prior art, and detailed description of the specific setting mode and connection state of the pull-up resistor is not described here.
Since the master control unit 10 and the slave control unit 20 in this embodiment jointly respond to the start key 53, when the smart watch is in the shutdown state, and after the start key 53 is pressed for a long time, the master control unit 10 is powered on first, and the master control unit 10 is powered on and then controls the power management unit 30 to enable the slave control unit 20 to be in the powered on state, so that when the master control unit 10 is powered on, the slave control unit 20 is not powered on yet, and therefore, the GPIO (General Purpose Input/Output) state of the slave control unit 20 connected to the start key 53 is indefinite, which easily affects the normal operation of the master control unit 10.
Therefore, in this embodiment, an NMOS tube 54 is further disposed between the other end of the start circuit 50 and the second key pin 52, a gate of the NMOS tube 54 is electrically connected to the other end of the start circuit, a drain of the NMOS tube 54 is electrically connected to the second key pin 52, and a source of the NMOS tube 54 is grounded. In this embodiment, the NMOS transistor 54 disposed between the start key 53 and the second key pin 52 can effectively isolate the current of the master control unit 10 from flowing to the slave control unit 20 when the smart watch enters the start state, so as to ensure the input/output stability of the start circuit 50.
In addition, in the present embodiment, the starting circuit 50 is usually electrically connected to only one of the first key pin 51 and the second key pin 52, so that the master control unit 10 or the slave control unit 20 can independently respond to the trigger signal of the key event, so as to avoid confusion of response of the trigger signal of the key event.
Based on the smart watch provided by the above embodiment, other embodiments of the present application further provide a mode switching method for the smart watch. The energy consumption of the intelligent watch is controlled by the division of the watch mode and the power-off state of the main control unit in the low energy consumption mode. Specifically, according to different application scenarios of the smart watch, the smart watch is divided into a shutdown mode, an operation mode and a watch mode. When the intelligent watch is in an operation mode, the intelligent watch can operate various functions of data receiving, processing, displaying and the like, wherein the master control unit is responsible for processing tasks with high energy consumption, such as map displaying, real-time parameter calculating and the like, and the slave control unit is responsible for processing tasks with low energy consumption, such as sensor data and the like; when the intelligent watch is in the watch mode, the slave control unit is responsible for processing sensor data and controlling the display unit to display time and/or date and the like, and the main control unit is in a power-off state in the watch mode, so that part of energy consumption generated by the main control unit of the intelligent watch in the watch mode is saved.
Please refer to fig. 3, which is a flowchart illustrating a mode switching method of a smart watch according to an embodiment of the present application. As can be seen from fig. 3, the method comprises the following steps:
step S100: after receiving a trigger instruction for switching from a shutdown mode to an operation mode, the main control unit outputs a high-level signal to an enabling end of the power management unit, and the power management unit outputs power supply voltage to the slave control unit.
In this embodiment, the trigger instruction for switching from the shutdown mode to the operation mode may specifically be a trigger signal of a key event generated when a user presses the start key for a long time, and in general, the time duration for pressing the start key for a long time is not less than 3 seconds in order to avoid misoperation. When the smart watch is in a shutdown mode, the master control unit and the slave control unit are both in a power-down state, in order to provide effective power supply voltage for the slave control unit, after a user presses a start key for a long time, the master control unit needs to enter a power-on state first under the action of a power supply circuit (not shown in fig. 2), and when an enabling end of the power management unit receives a high-level signal output by the master control unit, the enabling end of the power management unit can output voltage to supply power to the slave control power supply, so that the slave control unit is in the power-on state.
Step S200: the master control unit controls the slave control unit to output a high-level signal to an enabling end of the power management unit through the first interface after receiving a trigger instruction for switching the operation mode to the watch mode, and closes a power supply circuit of the master control unit after receiving a first confirmation instruction fed back by the slave control unit.
In addition, mode options can be set on the display screen, the mode options can include an operation option, a watch mode and a shutdown option, the mode options are released in the operation mode, and a trigger instruction for switching the operation mode into the watch mode can be sent out by selecting the watch option. Of course, in other embodiments, the trigger instruction for switching from the operating mode to the watch mode may also be implemented by setting the start key, and it should be noted that the pressing time of the start key in this scenario should be set separately from the pressing time of the smart watch when the smart watch is turned on (i.e., the smart watch enters the operating mode from the power-off mode).
In this embodiment, when the smart watch enters the watch mode, in order to avoid power consumption as much as possible, the master control unit needs to be in a power-down state on the premise that normal operation of the slave control unit is not affected. The power management unit is provided with two control signal input circuits, and when any one of the two control signal input circuits inputs a high-level voltage signal, the power management unit can output voltage to supply power to the slave control unit. Because the power management unit and the slave control unit are both in the power-on state in the operation mode, and the master control unit is in the power-off state in the watch mode, that is, the voltage signal output by the master control unit is a low-level signal, in order to ensure the normal power supply of the slave control unit, the slave control unit needs to output a high-level signal to the control signal input end of the power management unit before the master control unit is powered off, so that the logic or gate circuit is maintained to output a high-level signal, and voltage is provided for the slave control unit and the slave control unit. At this time, the power-on state of the master control unit will not affect the power-on state of the slave control unit any more, so that after the master control unit receives the first confirmation instruction sent by the slave control unit, the power supply circuit of the master control unit can be controlled to enter the off state, and the power supply for the master control unit is stopped. In this embodiment, the first acknowledgement command is used to indicate a sending state of the slave control unit to the high level signal, so as to prevent the master control unit from suddenly powering down to affect normal operation of the slave control unit.
Referring to fig. 4, a flowchart of another mode switching method of a smart watch according to an embodiment of the present application is shown. As can be seen from fig. 4, after step S100, the method further comprises the steps of:
step S110: the main control unit controls the display unit through a third interface;
step S120: the master control unit sends a prohibition instruction to the slave control unit through the first interface, wherein the prohibition instruction is used for prohibiting the slave control unit from responding to a trigger signal input by a starting circuit and forbidding a second interface between the slave control unit and the display unit.
When the intelligent watch is in the running mode, the master control unit and the slave control unit run simultaneously, and in order to avoid disordered command response, the display unit can be controlled only by the master control unit in a mode of forbidding the second interface so as to display a task interface related to the master control unit. Meanwhile, the response of the slave control unit to the trigger signal can be limited by disabling the second key pin, and at this time, only the master control unit can respond to the trigger signal through the first key pin. When the intelligent watch is in the running mode, the start key is pressed for a long time to control the opening and closing of the main control unit.
In addition, in other embodiments of the present application, after the master control unit receives a trigger instruction for switching from the operating mode to the watch mode, the master control unit needs to hand over the control authority of the display unit and the corresponding authority of the start circuit to the slave control unit. Specifically, the master control unit may send an enabling instruction to the slave control unit through the first interface, where the enabling instruction is used to allow the slave control unit to respond to a trigger signal input by the start circuit, and enable the second interface between the slave control unit and the display unit, and then turn off the power supply circuit of the master control unit. In watch mode, a short press (about 1 second) of the start button is used to trigger the switching on and off of the display unit from the control unit. When the display unit is started, only current time data such as time, date and the like are displayed, and the energy consumption of the intelligent watch is saved as far as possible while the basic requirements of a user are met.
When the smart watch is powered off in the running mode, the slave control unit needs to be turned off in advance, and the master control unit is turned off, and the specific method comprises the following steps:
step S300: after receiving a trigger instruction for switching from an operating mode to a shutdown mode, the master control unit controls the slave control unit to output a low-level signal to an enabling end of the power management unit through the first interface.
Step S400: and after receiving a second confirmation instruction fed back by the slave control unit, the master control unit outputs a low level signal to the enabling end of the power management unit and closes a power supply circuit of the master control unit.
When the two-way input end of the power management unit inputs a low level signal, the power management unit cannot provide power supply voltage for the slave control unit, and the slave control unit is closed. When the power supply circuit of the main control unit is closed, and the power management unit is automatically closed. Of course, before the power supply circuit of the main control unit is turned off, the power output end of the main control unit may be controlled to output a low level signal, and the main control unit may be turned off after the power management unit is turned off in advance.
Of course, the smart watch provided by the application can also enter a shutdown mode in a watch mode, and the power management unit can specifically output a low-level signal from the control unit through starting the key to trigger the control signal input end.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, they are described in relative terms, as long as they are described in partial descriptions of method embodiments. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The foregoing is merely a detailed description of the invention, and it should be noted that modifications and adaptations by those skilled in the art may be made without departing from the principles of the invention, and should be considered as within the scope of the invention.
Claims (12)
1. A smart watch, comprising: a master control unit, a slave control unit and a power management unit, wherein,
the control signal output end of the master control unit and the control signal output end of the slave control unit are both connected with the enabling end of the power management unit, so that the power management unit outputs power supply voltage from the output end of the power management unit when receiving a high level signal input by the master control unit and/or the slave control unit;
the master control unit is electrically connected with the slave control unit through a first interface, so that the master control unit controls the slave control unit to output a high-level signal to an enabling end of the power management unit through the first interface before a power supply circuit of the master control unit is closed;
the output end of the power management unit is electrically connected with the power access end of the slave control unit.
2. The smart watch of claim 1, wherein the power management unit comprises a logical OR gate circuit and a power management circuit, wherein,
the first input end of the logic OR gate circuit is electrically connected with the control signal output end of the master control unit, the second input end of the logic OR gate circuit is electrically connected with the control signal output end of the slave control unit, and the output end of the logic OR gate circuit is electrically connected with the enabling end of the power management circuit.
3. The smart watch of claim 2, wherein a power input of the logical or gate circuit is electrically connected to a power output of the master control unit and an output of the power management circuit, respectively.
4. The smart watch of claim 2, wherein the power input terminal of the logical or gate circuit is electrically connected to the power output terminal of the main control unit and the output terminal of the power management circuit, respectively, and the main control unit controls the power output terminal of the main control unit to input power to the power input terminal of the logical or gate circuit.
5. The smart watch of claim 1, further comprising a display unit,
the display unit is electrically connected with the main control unit through a third interface;
the display unit is electrically connected with the slave control unit through a second interface.
6. The smart watch of claim 2, wherein the power management unit further comprises a first diode and a second diode, wherein,
the anode of the first diode is electrically connected with the power supply output end of the main control unit, and the cathode of the first diode is electrically connected with the power supply access end of the logic OR gate circuit;
and the anode of the second diode is electrically connected with the output end of the power management circuit, and the cathode of the second diode is electrically connected with the power supply access end of the logic OR gate circuit.
7. The smartwatch of claim 1, further comprising a start circuit, one end of the start circuit being grounded, the other end of the start circuit being connected to the master control unit via a first key pin and to the slave control unit via a second key pin, the start circuit further comprising a start key for controlling a ground state of the start circuit.
8. The smart watch of claim 7, wherein an NMOS transistor is further disposed between the other end of the start circuit and the second key pin, a gate of the NMOS transistor is electrically connected to the other end of the start circuit, a drain of the NMOS transistor is electrically connected to the second key pin, and a source of the NMOS transistor is grounded.
9. A mode switching method of a smart watch is characterized by comprising the following steps:
the method comprises the steps that after a main control unit receives a trigger instruction for switching from a shutdown mode to an operation mode, a high-level signal is output to an enabling end of a power management unit, and the power management unit outputs power supply voltage to a slave control unit;
the master control unit controls the slave control unit to output a high-level signal to an enabling end of the power management unit through the first interface after receiving a trigger instruction for switching the operation mode to the watch mode, and closes a power supply circuit of the master control unit after receiving a first confirmation instruction fed back by the slave control unit.
10. The method according to claim 9, wherein after the main control unit receives a trigger instruction for switching from the shutdown mode to the running mode, the method further comprises:
the main control unit controls the display unit through a third interface;
the master control unit sends a prohibition instruction to the slave control unit through the first interface, wherein the prohibition instruction is used for prohibiting the slave control unit from responding to a trigger signal input by a starting circuit and forbidding a second interface between the slave control unit and the display unit.
11. The method of claim 9, wherein the main control unit further comprises, after receiving a trigger command for switching from the operation mode to the watch mode, before turning off a power supply circuit of the main control unit:
the master control unit sends an enabling instruction to the slave control unit through the first interface, wherein the enabling instruction is used for allowing the slave control unit to respond to a trigger signal input by a starting circuit and enabling a second interface between the slave control unit and a display unit.
12. The method of claim 9, further comprising:
after receiving a trigger instruction for switching from an operating mode to a shutdown mode, the master control unit controls the slave control unit to output a low-level signal to an enabling end of the power management unit through the first interface;
the master control unit outputs a low level signal to an enabling end of the power management unit after receiving a second confirmation instruction fed back by the slave control unit;
and closing a power supply circuit of the main control unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810835553.7A CN110764397B (en) | 2018-07-26 | 2018-07-26 | Intelligent watch and mode switching method thereof |
| PCT/CN2019/097942 WO2020020356A1 (en) | 2018-07-26 | 2019-07-26 | Smart watch and mode switching method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810835553.7A CN110764397B (en) | 2018-07-26 | 2018-07-26 | Intelligent watch and mode switching method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110764397A CN110764397A (en) | 2020-02-07 |
| CN110764397B true CN110764397B (en) | 2021-07-23 |
Family
ID=69326804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810835553.7A Active CN110764397B (en) | 2018-07-26 | 2018-07-26 | Intelligent watch and mode switching method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110764397B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0167643B1 (en) * | 1995-05-12 | 1999-01-15 | 김광호 | Power control device and its method |
| KR0167648B1 (en) * | 1995-10-10 | 1999-01-15 | 김광호 | Power supply device |
| TWI398758B (en) * | 2009-01-14 | 2013-06-11 | Lite On Electronics Guangzhou | Intelligent clamping circuit and power supply with this clamping circuit |
| TWI523360B (en) * | 2014-11-20 | 2016-02-21 | 英業達股份有限公司 | Power source protection device and method |
| CN205121190U (en) * | 2015-08-14 | 2016-03-30 | 深圳智能表芯科技有限公司 | Intelligent wrist -watch power module that can stably supply power |
| CN106487055B (en) * | 2015-09-02 | 2019-06-11 | 华为终端有限公司 | Electric power management circuit, intelligent terminal and charging method |
| CN106707735A (en) * | 2015-11-12 | 2017-05-24 | 朗昇科技（苏州）有限公司 | Low-power consumption intelligent Bluetooth watch |
| CN107546814B (en) * | 2017-10-16 | 2024-04-02 | 歌尔科技有限公司 | Charging base and electronic product |
| CN108319360A (en) * | 2018-01-26 | 2018-07-24 | 出门问问信息科技有限公司 | A kind of display device, electronic equipment and control method for screen display |
-
2018
- 2018-07-26 CN CN201810835553.7A patent/CN110764397B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110764397A (en) | 2020-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8032259B2 (en) | Bi-directional power control | |
| US8862916B2 (en) | Wireless control of power sockets based on host and signal quality | |
| CN203366017U (en) | Building talk-back intelligent terminal and crash restart system for same | |
| JP3150567U (en) | Electronic device that reduces power consumption when computer motherboard shuts down | |
| TWI225982B (en) | Power shutdown method of wireless peripheral device | |
| CN210273593U (en) | High-power supply circuit with low standby power consumption and LED display control system | |
| CN111361546B (en) | Vehicle control device and method and vehicle | |
| CN104850021B (en) | A kind of power on/off system | |
| US8219842B2 (en) | Computer system and method for energy-saving operation of a computer system | |
| CN105629825B (en) | A kind of management method and management system of wearable smart machine power-supply system | |
| CN110764398B (en) | Intelligent watch and mode switching method thereof | |
| CN105491242B (en) | Mobile communication terminal and control method and device thereof | |
| WO2021078261A1 (en) | Power supply control method, system and device | |
| CN108227900B (en) | Electronic device, energy-saving control method, energy-saving device, and readable storage medium | |
| CN110764397B (en) | Intelligent watch and mode switching method thereof | |
| CN114089714A (en) | Portable electronic device | |
| CN108509036A (en) | It is a kind of based on all touch screen curtain and the electronic equipment without button and its control method | |
| US20230318327A1 (en) | Stylus | |
| CN107561991A (en) | A kind of switching on and shutting down management circuit and terminal | |
| CN116825013A (en) | Control device, control method and related equipment of display screen | |
| CN107272864B (en) | Reset circuit, battery and electronic equipment | |
| CN112600283B (en) | Startup and shutdown circuit | |
| CN209805473U (en) | Control circuit and charger of power supply | |
| WO2020020356A1 (en) | Smart watch and mode switching method therefor | |
| US10340798B2 (en) | Switching control method for a dual auxiliary power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: Qingdao Hisense Mobile Communication Technology Co.,Ltd. Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee before: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |