CN103760945A - Power control method and device of wearable device - Google Patents
Power control method and device of wearable device Download PDFInfo
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Abstract
The invention discloses a power control method and device of a wearable device. The power control method comprises performing real-time monitoring on signals output from a gyroscope which is arranged on the wearable device through an MCU (Micro Control Unit); sending a first control signal to a power supply control module through the MCU if the signals output from the gyroscope are unchanged within the first time length so as to enable the power supply control module to control a power supply to stop supplying power for a consumption module which is arranged in the wearable device, wherein the consumption module is a power consumption module arranged in the wearable device besides the MCU; sending a second control signal to the power supply control module through the MCU if the signals output from the gyroscope change within the second time length after the power supply stops supplying power for the consumption module which is arranged in the wearable device so as to enable the power supply control module to control the power supply to continue supplying power for the consumption module which is arranged in the wearable device. According to the technical scheme of the power control method and device of the wearable device, the problems that power control of the existing wearable device needs to depend on a set program and chip and the power loss is large during power control are solved.
Description
Technical Field
The invention relates to the technical field of electronic products, in particular to a power control method and device of wearable equipment.
Background
With the social progress and the development of Technology, Wearable Technology (Wearable Technology) is becoming a promising aspect in the field of consumer electronics. In life, the common mainstream products based on wearable technology mainly include: bluetooth headset, 3D glasses and various head-mounted game devices with virtual reality functions, etc. One common feature of wearable devices is that they are small in size. This also makes the ability to have a built-in high capacity battery impossible for these products. Therefore, developers are often plagued with the same problem when developing and designing these products: how to make these wearable devices have as long a standby time as possible in case of limited battery power.
The conventional low power consumption control method relies on a predetermined program and chip, and has a disadvantage in that it can determine whether the device should be put into a low power consumption mode only by detecting whether there is a signal input and output. When detecting input and output signals, the device often waits for a considerable amount of time at full power. If there is no signal for this period of time, then the device enters a low power sleep mode. This results in a huge waste of energy.
In summary, the conventional wearable device needs to perform power control by using a predetermined program and a chip, and thus has a problem of large power loss during power control.
Disclosure of Invention
The invention provides a power control method and device of wearable equipment. The wearable device can solve the problems that the power control of the existing wearable device needs to be carried out by means of a set program and a chip, and the power loss is large when the power control is carried out.
The invention discloses a power control method of wearable equipment, which comprises the following steps:
the micro control unit MCU detects the signal output by the gyroscope arranged on the wearable device in real time,
within a first time span, if the situation that the signal output by the gyroscope is unchanged is detected, the MCU sends a first control signal to the power supply control module, so that the power supply control module controls the power supply to stop supplying power to the power consumption module in the wearable device; the power consumption module is a power consumption module except for an MCU in the wearable device;
within a second time length after the power supply stops supplying power to the power consumption module in the wearable device, if the fact that the signal output by the gyroscope is changed is detected, the MCU sends a second control signal to the power supply control module, so that the power supply control module controls the power supply to continuously supply power to the power consumption module in the wearable device.
In the above method, the method further comprises:
the method comprises the steps that a human eye detection module used for detecting whether human eyes are in an eye closing state or not is arranged;
the human eye detection module sends an eye closing state signal to the MCU when detecting that the human eyes are in an eye closing state within a third time length; the MCU sends a third control signal to the power supply control module according to the eye closing state signal, so that the power supply control module controls the power supply to stop supplying power to the power consumption module in the wearable device;
the human eye detection module sends an eye opening state signal to the MCU when detecting that human eyes are in an eye opening state within a fourth time length; the MCU sends a fourth control signal to a power supply control module according to the eye opening state signal, so that the power supply control module controls a power supply to continuously supply power to a power consumption module in the wearable device;
the power consumption module is a power consumption module except for the MCU in the wearable device.
In the method, the power consumption module includes at least one of a speaker, a display, a communication module, a touch chip and a camera.
In the above method, the method further comprises: arranging a brain wave detection module for detecting the sleep state of a user;
the brain wave detection module sends a light sleep state signal to the MCU when detecting that the user is in a light sleep state within a fifth time length; the MCU sends a fifth control signal to the power supply control module according to the shallow and deep sleep state signal, so that the power supply control module controls the power supply to stop supplying power to part of power consumption modules in the wearable equipment;
the brain wave detection module sends a deep sleep state signal to the MCU when detecting that the user is in a deep sleep state within a sixth time period; the MCU sends a sixth control signal to the power supply control module according to the deep sleep state signal, so that the power supply control module controls the power supply to stop supplying power to all power consumption modules in the wearable equipment;
the brain wave detection module sends a waking state signal to the MCU when detecting that the user is in a waking state within a seventh time period; and the MCU sends a seventh control signal to the power supply control module according to the waking state signal, so that the power supply control module controls the power supply to continuously supply power to the power consumption module in the wearable device.
The invention also discloses a power control device of the wearable equipment, which comprises:
the gyroscope comprises a power supply, an MCU, a gyroscope, a power supply control module and a power consumption module;
a signal output port of the gyroscope is connected with a signal detection port of the MCU, and a signal input port of the power supply control module is connected with a control signal output port of the MCU; the power input port of the power consumption module is connected with the power supply; wherein,
the MCU is used for detecting the signal output by the gyroscope in real time, sending a first control signal to the power supply control module when no change of the signal output by the gyroscope is detected within a first time span, sending a second control signal to the power supply control module when the change of the signal output by the gyroscope is detected within a second time span after the power supply to the power consumption module is stopped,
the power supply control module is used for controlling a power supply to stop supplying power to the power consumption module according to a first control signal sent by the MCU; and controlling a power supply to continuously supply power to a power consumption module in the wearable device according to a second control signal sent by the MCU.
In the above apparatus, the apparatus further comprises: the human eye detection module is connected with the MCU;
the human eye detection module is used for sending a closed eye state signal to the MCU when detecting that the human eyes are in a closed eye state within a third time length, and sending an eye opening state signal to the MCU when detecting that the human eyes are in an eye opening state within a fourth time length;
the MCU is used for sending a third control signal to the power supply control module according to the eye closing state signal and sending a fourth control signal to the power supply control module according to the eye opening state signal;
the power supply control module is used for controlling a power supply to stop supplying power to the power consumption module in the wearable device according to a third control signal; and the controller is used for controlling the power supply to continuously supply power to the power consumption module in the wearable device according to the fourth control signal.
In the above device, the power consumption module includes at least one of a speaker, a display, a communication module, a touch chip, and a camera.
In the above apparatus, the apparatus further comprises: the brain wave detection module is connected with the MCU;
the brain wave detection module is used for sending a light sleep state signal to the MCU when detecting that the user is in a light sleep state within a fifth time span, sending a deep sleep state signal to the MCU when detecting that the user is in a deep sleep state within a sixth time span, and sending a waking state signal to the MCU when detecting that the user is in a waking state within a seventh time span;
the MCU is used for sending a fifth control signal to the power supply control module according to the light deep sleep state signal, sending a sixth control signal to the power supply control module according to the deep sleep state signal, and sending a seventh control signal to the power supply control module according to the wakeful state signal;
the power supply control module is used for controlling a power supply to stop supplying power to a part of power consumption modules in the wearable equipment according to a fifth control signal; the power supply is controlled to stop supplying power to all power consumption modules in the wearable device according to a sixth control signal; and the controller is used for controlling the power supply to continuously supply power to all power consumption modules in the wearable device according to the seventh control signal.
In the above apparatus, the power supply control module includes: the device comprises a field effect tube, a triode, a resistor, a capacitor and a filtering magnetic bead; wherein,
the base electrode of the triode is connected with the signal output end of the MCU, the emitting electrode of the triode is grounded, and the collector electrode of the triode is connected with the grid electrode of the field effect tube;
one end of the resistor is connected with the output end of the power supply, and the other end of the resistor is connected with the collector of the triode;
the source electrode of the field effect transistor is connected with the power supply output end, the drain electrode of the field effect transistor is connected with one end of the capacitor, and the other end of the capacitor is grounded;
the drain electrode of the field effect transistor is connected with one end of the filtering magnetic bead, and the other end of the filtering magnetic bead is connected with the power input end of the power consumption module.
In the above device, the field effect transistor is a P-channel MOS transistor; the triode is a digital triode.
In summary, in the technical solution provided by the present invention, the MCU detects the output signal of the gyroscope disposed inside the wearable device, and determines whether the wearable device is in a motion state according to whether the output signal changes. Because the detection to the signal of gyroscope is real-time, consequently can be timely the state whether wearable equipment is in the dress to can be when wearable equipment is not in the dress state, the control power stops to power consumption module, and MCU also gets into low-power consumption mode, further reduces the consumption to the power.
Drawings
FIG. 1 is a flow chart of a power control method of a wearable device of the present invention;
fig. 2 is a schematic structural diagram of a power control device of a wearable device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a power control device of a wearable device according to another embodiment of the present invention;
fig. 4 is a schematic diagram of a power control apparatus of a wearable device according to still another embodiment of the present invention;
FIG. 5 is a circuit diagram of a power control module in one embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a flowchart of a power control method of a wearable device according to the present invention, and the method includes the following steps, as shown in fig. 1.
102, in a first time span, if the situation that a signal output by a gyroscope is unchanged is detected, sending a first control signal to a power supply control module by an MCU (microprogrammed control Unit), so that the power supply control module controls a power supply to stop supplying power to a power consumption module in the wearable device; the power consumption module is a power consumption module except for the MCU in the wearable device.
In the embodiment of the invention, the output signal of the gyroscope on the wearable device is detected in real time through the MCU, and whether the wearable device provided with the gyroscope is in a wearing state is judged according to whether the signal output by the gyroscope changes. That is, if the signal of the gyroscope does not change, it is determined that the wearable device is not in the wearable state, and therefore a control signal is sent to the power control module, so that the power supply stops supplying power to the power consumption module to reduce power consumption of the power supply. If the signal of the gyroscope changes, the wearable device is judged to be in a wearing state, when the power supply supplies power to the power consumption module, the current state is kept unchanged, and when the power supply stops supplying power to the power consumption module, a second control signal is sent to the power control module, so that the power supply continues to supply power to the power consumption module, and the wearable device continues to work.
In a specific implementation of the invention, the wearable device, especially a wearable device with a video display, such as bluetooth headset 3D glasses, etc., is provided. When the wearable device is worn on a user, the user who wears the wearable device enters a sleep state, but the data of the gyroscope is changed, and the MCU does not send a control signal to the power supply module, namely the wearable device is still in a working state. In practice, however, the power supply is required to stop supplying power to the power consuming device, and a low power consumption mode should be entered at this time as well.
Therefore, in a preferred embodiment of the present invention, a human eye detection module for detecting whether the human eye is in an eye-closing state is further provided in the wearable device. When detecting that the human eyes are in an eye closing state, the human eye detection module sends an eye closing state signal to the MCU; the human eye detection module sends an eye opening state signal to the MCU when detecting that the human eyes are in an eye opening state.
When the user enters the sleep state, namely, the eyes are in the eye closing state. And the MCU sends a third control signal to the power supply control module according to the eye closing state signal, so that the power supply control module controls the power supply to stop supplying power to the power consumption module in the wearable device. When the user does not enter the sleep state, namely the glasses are in the eye opening state, the MCU sends a fourth control signal to the power supply control module according to the eye opening state signal, so that the power supply control module controls the power supply to continuously supply power to the power consumption module in the wearable device; the power consumption module is a power consumption module except the MCU in the wearable device.
In one embodiment of the present invention, the power consumption module of the wearable device may be generally multiple, such as a speaker, a display, a communication module (infrared, bluetooth, NFC, or other wireless communication module or wired transmission, etc.), a touch chip, a camera, and the like.
Further, since the sleeping habits of each user are different, the sleeping states of the users may be different, and there is a great probability that the power consumption modules continue to be used when the user is in a light sleeping state (sleepy) or simply has his eyes closed for rest. In the deep sleep state, there is little probability of continuing to use these power consuming modules, and thus the power supply can be turned off substantially directly. Therefore, in another preferred embodiment of the present invention, a brain wave detection module for detecting a sleep state of the user is further disposed in the wearable device, wherein the brain wave detection module is connected to the MCU.
In one embodiment of the invention, the brain wave detection module sends a light sleep state signal to the MCU when detecting that the user is in a light sleep state within a fifth time length; and the MCU sends a fifth control signal to the power supply control module according to the shallow and deep sleep state signal, so that the power supply control module controls the power supply to stop supplying power to part of power consumption modules in the wearable equipment.
In one embodiment of the invention, the brain wave detection module sends a deep sleep state signal to the MCU when detecting that the user is in a deep sleep state within a sixth time period; and the MCU sends a sixth control signal to the power supply control module according to the deep sleep state signal, so that the power supply control module controls the power supply to stop supplying power to all power consumption modules in the wearable equipment.
In one embodiment of the invention, the brain wave detection module sends an awake state signal to the MCU when detecting that the user is in the awake state for a seventh length of time; and the MCU sends a seventh control signal to the power supply control module according to the waking state signal, so that the power supply control module controls the power supply to continuously supply power to the power consumption module in the wearable device.
Therefore, compared with the traditional low-power-consumption control method on the wearable device, the technical scheme provided by the invention has the advantages that: the gyroscope that sets up can provide clear and definite foundation for whether control power stops to supply power to the power consumption module, and the signal that gyroscope output does not change promptly, then MCU sends first control signal to power control module, stops to supply power to the power consumption module for wearable equipment enters the low-power consumption mode. In addition, the power consumption control method provided by the invention also can intelligently control the working state of the wearable device according to the eye opening state or the eye closing state of the person in the sleep state by arranging the human eye detection module, so that the energy can be saved to the maximum extent. Furthermore, a brain wave detection module for detecting the sleep state of the user is arranged, and according to the sleep degree of a person, the working state of the wearable device is intelligently controlled, and the most humanized power consumption regulation and control can be achieved.
In a preferred embodiment of the present invention, the MCU enters the low power mode after transmitting the first control signal to the power module.
In a preferred embodiment of the present invention, the low power consumption mode is entered after the MCU transmits the third control signal to the power module.
In a preferred embodiment of the present invention, after the MCU sends the sixth control signal to the power module, the low power mode is entered.
After MCU gets into low-power consumption mode, can further reduce the consumption of power, and then the operating time of the power in the extension wearable equipment.
For a clearer description of the power control device of the wearable device in the present invention, the following detailed description is made with reference to the accompanying drawings.
Fig. 2 is a schematic structural diagram of a power control apparatus of a wearable device according to an embodiment of the present invention, and referring to fig. 2, the apparatus includes:
a power supply 203, an MCU202, a gyroscope 201, a power supply control module 204 and a power consumption module 205;
a signal output port of the gyroscope 201 is connected with a signal detection port of the MCU202, and a signal input port of the power control module 204 is connected with a control signal output port of the MCU 202; a power input port of the power consumption module 205 is connected to the power supply; wherein,
the MCU202 is configured to detect a signal output by the gyroscope 201 in real time, where the signal output by the gyroscope 201 changes when the gyroscope 201 is in a moving state, and the signal output by the gyroscope does not change when the gyroscope is in a static state. Therefore, whether the wearable device provided with the gyroscope is in a motion state or not is judged by detecting the output signal of the gyroscope, and whether the user uses the wearable device or not is further judged.
During the first time period, if the MCU202 detects a change in the signal output by the gyroscope 201, it sends a first control signal to the power control module 204, and the power control module 204 controls the power supply 203 to stop supplying power to the power consumption module 205 according to the first control signal. In an embodiment of the present invention, by detecting no change in the output signal of the gyroscope for a period of time, it is determined that the user is not using the wearable device, and the power source 203 is controlled to stop supplying power to the power consumption module 205, so as to reduce the power consumption. The first time period can be set according to the wearable device and the actual use condition. For example, for 3D glasses, the first period of time may be set to 30 s.
Within a second time period after the power consumption module 205 is stopped, if the MCU202 detects a change in the signal output by the gyroscope 201, the MCU202 sends a second control signal to the power control module 204, and the power control module 204 controls the power source 203 to continue to supply power to the power consumption module 205 in the wearable device according to the second control signal. In an embodiment of the present invention, by detecting a change in the output signal of the gyroscope for a sustained period of time, it is determined that the user is using the wearable device, and the power source 203 is controlled to continue to supply power to the power consumption module 205, so that the wearable device can be used normally. The second time period can be set according to the wearable device and the actual use condition. For example, for 3D glasses, the second period of time may be set to 10 s. The MCU202 may be NUC123SD4AN0 chip manufactured by Nuvoton corporation.
In the embodiment of the invention, the output signal of the gyroscope on the wearable device is detected in real time through the MCU, and whether the wearable device provided with the gyroscope is in a wearing state is judged according to whether the signal output by the gyroscope changes. That is, if the signal of the gyroscope does not change, it is determined that the wearable device is not in the wearable state, and therefore a control signal is sent to the power control module, so that the power supply stops supplying power to the power consumption module to reduce power consumption of the power supply. If the signal of the gyroscope changes, the wearable device is judged to be in a wearing state, when the power supply supplies power to the power consumption module, the current state is kept unchanged, and when the power supply stops supplying power to the power consumption module, a second control signal is sent to the power control module, so that the power supply continues to supply power to the power consumption module, and the wearable device continues to work.
In a specific implementation of the invention, the wearable device, especially a wearable device with a video display, such as bluetooth headset 3D glasses, etc., is provided. When the wearable device is worn on a user, the user who wears the wearable device enters a sleep state, but the data of the gyroscope is changed, and the MCU does not send a control signal to the power supply module, namely the wearable device is still in a working state. In practice, however, the power supply is required to stop supplying power to the power consuming device, and a low power consumption mode should be entered at this time as well.
Therefore, in a preferred embodiment of the present invention, a human eye detection module for detecting whether the human eye is in an eye-closing state is further provided in the wearable device. When detecting that the human eyes are in an eye closing state, the human eye detection module sends an eye closing state signal to the MCU; the human eye detection module sends an eye opening state signal to the MCU when detecting that the human eyes are in an eye opening state.
When the user enters the sleep state, namely, the eyes are in the eye closing state. And the MCU sends a third control signal to the power supply control module according to the eye closing state signal, so that the power supply control module controls the power supply to stop supplying power to the power consumption module in the wearable device. When the user does not enter the sleep state, namely the glasses are in the eye opening state, the MCU sends a fourth control signal to the power supply control module according to the eye opening state signal, so that the power supply control module controls the power supply to continuously supply power to the power consumption module in the wearable device; the power consumption module is a power consumption module except the MCU in the wearable device.
In one embodiment of the present invention, the power consumption module of the wearable device may be generally multiple, such as a speaker, a display, a communication module (infrared, bluetooth, NFC, or other wireless communication module or wired transmission, etc.), a touch chip, a camera, and the like.
Fig. 3 is a schematic structural diagram of a power control apparatus of a wearable device according to another embodiment of the present invention. Referring to fig. 3, in an embodiment of the present invention, the power control apparatus of the wearable device further includes an eye detection module 206.
The human eye detection module 206 is configured to send an eye-closing state signal or an eye-opening state signal to the MCU 202;
the eye detection module 206 sends an eye opening state signal to the MCU when detecting that the eyes are in an eye opening state, and sends a eye closing state signal to the MCU when detecting that the eyes are in an eye closing state.
The MCU202 is configured to send a third control signal to the power control module according to the eye-closing state signal, and send a fourth control signal to the power control module according to the eye-opening state signal.
The power supply control module 203 is used for controlling a power supply to stop supplying power to a power consumption module in the wearable device according to third control information; or controlling a power supply to continuously supply power to a power consumption module in the wearable device according to fourth control information;
in a specific application of the present invention, when the user enters a sleep state, i.e. the eyes are in a closed eye state. The MCU202 sends a third control signal to the power control module 204 according to the closed-eye state signal, and the power control module 204 controls the power supply 203 to stop supplying power to the power consumption module 205 in the wearable device.
When the user does not enter the sleep state, the MCU202 sends a fourth control signal to the power control module 204 according to the eye-open state signal, so that the power control module 204 controls the power supply 203 to continue to supply power to the power consumption module 205 in the wearable device; the power consumption modules are power consumption modules in the wearable device except for the MCU, that is, the power consumption module 205 may be multiple.
Fig. 4 is a schematic diagram of a power control apparatus of a wearable device according to still another embodiment of the present invention.
Referring to fig. 4, in an embodiment of the present invention, the power control apparatus of the wearable device further includes a brain wave detection module 207.
The brain wave detection module 207 is used for sending a light sleep state signal to the MCU; or, sending a deep sleep state signal; alternatively, an awake state signal is transmitted.
In a specific embodiment of the present invention, the brain wave detection module 207 sends a light sleep state signal to the MCU202 when detecting that the user is in a light sleep state for a fifth length of time; when detecting that the user is in the deep sleep state within the sixth time period, sending a deep sleep state signal to the MCU 202; upon detecting that the user is awake for the seventh length of time, an awake state signal is transmitted to MCU 202.
The MCU202 is used for sending a fifth control signal to the power control module 204 according to the shallow and deep sleep state signal; sending a sixth control signal to the power control module 204 according to the deep sleep state signal; and sending a seventh control signal to a power supply control module according to the waking state signal.
The power supply control module 204 is used for controlling the power supply 203 to stop supplying power to a part of power consumption modules in the wearable device according to a fifth control signal; the controller is used for controlling the power supply 203 to stop supplying power to all power consumption modules in the wearable device according to a sixth control signal; for controlling the power supply 203 to continue to supply power to all power consuming modules in the wearable device according to the seventh control signal.
Further, since the sleeping habits of each user are different, the sleeping states of the users may be different, and there is a great probability that the power consumption modules continue to be used when the user is in a light sleeping state (sleepy) or simply has his eyes closed for rest. In the deep sleep state, there is little probability of continuing to use these power consuming modules, and thus the power supply can be turned off substantially directly. Therefore, in another preferred embodiment of the present invention, a brain wave detection module for detecting a sleep state of the user is further disposed in the wearable device, wherein the brain wave detection module is connected to the MCU.
In one embodiment of the present invention, the brain wave detection module 207 transmits a light sleep state signal to the MCU202 when detecting that the user is in a light sleep state for a fifth length of time; the MCU202 sends a fifth control signal to the power control module 204 according to the light-deep sleep state signal, so that the power control module 204 controls the power supply 203 to stop supplying power to some power consumption modules in the wearable device.
In one embodiment of the present invention, the brain wave detection module 207 transmits a deep sleep state signal to the MCU202 when detecting that the user is in a deep sleep state for a sixth length of time; the MCU202 sends a sixth control signal to the power control module 204 according to the deep sleep state signal, so that the power control module 204 controls the power supply 203 to stop supplying power to all power consuming modules in the wearable device.
In one embodiment of the present invention, the brain wave detection module 207 transmits an awake state signal to the MCU202 when detecting that the user is in the awake state for the seventh length of time; the MCU202 sends a seventh control signal to the power control module 204 according to the awake state signal, so that the power control module 204 controls the power supply 203 to continue to supply power to the power consumption module in the wearable device.
Therefore, compared with the traditional low-power-consumption control method on the wearable device, the technical scheme provided by the invention has the advantages that: the gyroscope that sets up can provide clear and definite foundation for whether control power stops to supply power to the power consumption module, and the signal that gyroscope output does not change promptly, then MCU sends first control signal to power control module, stops to supply power to the power consumption module for wearable equipment enters the low-power consumption mode. In addition, the power consumption control method provided by the invention also can intelligently control the working state of the wearable device according to the eye opening state or the eye closing state of the person in the sleep state by arranging the human eye detection module, so that the energy can be saved to the maximum extent. Furthermore, a brain wave detection module for detecting the sleep state of the user is arranged, and according to the sleep degree of a person, the working state of the wearable device is intelligently controlled, and the most humanized power consumption regulation and control can be achieved.
In an embodiment of the present invention, the brain wave detection module may be implemented by connecting a ThinkGear AM chip to the dry electrode.
In an embodiment of the present invention, the gyroscope used only needs to be a small gyroscope that can detect a position change and can be integrated into a wearable device, and the accuracy is not limited. For example BMI055 (gyroscope) from BOSCH corporation.
In one embodiment of the present invention, the selected human eye detection module may use a micro camera to carry an image processor DSP chip to capture and determine the activity state of the human eye (e.g., a TMS320DM642 integrated DSP chip), or use an infrared detector (SI 1141-a 11-gmrsilcon LABS infrared sensor) to detect the activity state of the human eye. Or an EYE ID retinal scan recognition device. The existing human eye recognition platform can also be adopted
In one embodiment of the present invention, the MCU may be any processor that satisfies the conditions.
In an embodiment of the present invention, the low power consumption mode is entered after the MCU202 sends the first control signal to the power control module 204. And the MCU202 in the low power consumption mode enters the operating mode when detecting that the signal of the gyroscope 201 changes, and sends a second control signal to the power control module 204.
In one embodiment of the invention, a wearable device may comprise: a gyroscope, and one or more of a human eye detection module and a brain wave detection module.
As described with reference to fig. 2 to 4, in the present invention, for a wearable device, more than one power consumption module 205 is provided in the wearable device. Examples are: the power consumption module 205 includes at least one of a speaker, a display, a communication module, a touch chip, and a camera.
In one embodiment of the present invention, a power consumption module of active 3D glasses includes: the lens, wireless module such as bluetooth or wifi communicates the module promptly, and the lens is the display promptly.
Fig. 5 is a circuit diagram of a power control module in an embodiment of the invention, and referring to fig. 4, the power control module includes: the device comprises a field effect transistor Q1, a triode Q2, a resistor R1, a capacitor C1 and a filter magnetic bead B22; wherein,
the base electrode of the triode Q2 is connected with the signal output end P2 of the MCU, the emitter electrode of the triode Q2 is grounded, and the collector electrode of the triode Q2 is connected with the grid electrode of the field effect transistor Q1;
one end of the resistor R1 is connected with the power output end P1, and the other end of the resistor R1 is connected with the collector of the triode Q2;
the source electrode of the field effect transistor Q1 is connected with the power output end P1, the drain electrode of the field effect transistor Q1 is connected with one end of the capacitor C1, and the other end of the capacitor C1 is grounded;
the drain electrode of the field effect transistor Q1 is connected with one end of the filtering magnetic bead B22, and the other end of the filtering magnetic bead B22 is connected with the power input end P3 of the power consumption module.
As shown in FIG. 5, the P1 port is connected to the voltage output of the power supply, the P3 port is connected to the power consumption module, and the P2 port is connected to the control pin of the MCU. When the pin at the P2 port is at a high level, the transistor Q2 is turned on, so that the gate level of the fet Q1 is pulled low, the fet Q1 is turned on, the P3 port has a voltage output, and the power consumption module 205 is powered. When the pin level of the P2 port is low, the transistor Q2 is turned off, the gate voltage of the fet Q1 is high, the fet Q1 is turned off, and no voltage is output from the P3 port. The power consumption mode 205 is not powered at this time.
Referring to fig. 5, the capacitor C1 is a filter capacitor, and the filter bead B22 plays a role in filtering. The specific models have no requirements. The capacitor C1 and the filter bead B22 cooperate to stabilize the voltage output by P3.
In one embodiment of the present invention, the fet Q1 is a P-channel MOS transistor.
In one embodiment of the present invention, transistor Q2 is a digital transistor.
In summary, in the technical solution provided by the present invention, the MCU detects the output signal of the gyroscope disposed inside the wearable device, and determines whether the wearable device is in a motion state according to whether the output signal changes. Because the detection to the signal of gyroscope is real-time, consequently can be timely the state whether wearable equipment is in the dress to can be when wearable equipment is not in the dress state, the control power stops to power consumption module, and MCU also gets into low-power consumption mode, further reduces the consumption to the power. In addition, the working state of the wearable device is intelligently controlled according to the eye opening state or the eye closing state of the user in the sleeping state by arranging the human eye detection module, so that the energy can be saved to the maximum extent. Furthermore, a brain wave detection module for detecting the sleep state of the user is arranged, and according to the sleep degree of a person, the working state of the wearable device is intelligently controlled, and the most humanized power consumption regulation and control can be achieved.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A method for power control of a wearable device, the method comprising:
the micro control unit MCU detects the signal output by the gyroscope arranged on the wearable device in real time,
within a first time span, if the situation that the signal output by the gyroscope is unchanged is detected, the MCU sends a first control signal to the power supply control module, so that the power supply control module controls the power supply to stop supplying power to the power consumption module in the wearable device; the power consumption module is a power consumption module except for an MCU in the wearable device;
within a second time length after the power supply stops supplying power to the power consumption module in the wearable device, if the fact that the signal output by the gyroscope is changed is detected, the MCU sends a second control signal to the power supply control module, so that the power supply control module controls the power supply to continuously supply power to the power consumption module in the wearable device.
2. The method of claim 1, further comprising:
the method comprises the steps that a human eye detection module used for detecting whether human eyes are in an eye closing state or not is arranged;
the human eye detection module sends an eye closing state signal to the MCU when detecting that the human eyes are in an eye closing state within a third time length; the MCU sends a third control signal to the power supply control module according to the eye closing state signal, so that the power supply control module controls the power supply to stop supplying power to the power consumption module in the wearable device;
the human eye detection module sends an eye opening state signal to the MCU when detecting that human eyes are in an eye opening state within a fourth time length; the MCU sends a fourth control signal to a power supply control module according to the eye opening state signal, so that the power supply control module controls a power supply to continuously supply power to a power consumption module in the wearable device;
the power consumption module is a power consumption module except for the MCU in the wearable device.
3. The method of claim 1 or 2, wherein the power consumption module comprises at least one of a speaker, a display, a communication module, a touch chip, and a camera.
4. The method of claim 3, further comprising:
arranging a brain wave detection module for detecting the sleep state of a user;
the brain wave detection module sends a light sleep state signal to the MCU when detecting that the user is in a light sleep state within a fifth time length; the MCU sends a fifth control signal to the power supply control module according to the shallow and deep sleep state signal, so that the power supply control module controls the power supply to stop supplying power to part of power consumption modules in the wearable equipment;
the brain wave detection module sends a deep sleep state signal to the MCU when detecting that the user is in a deep sleep state within a sixth time period; the MCU sends a sixth control signal to the power supply control module according to the deep sleep state signal, so that the power supply control module controls the power supply to stop supplying power to all power consumption modules in the wearable equipment;
the brain wave detection module sends a waking state signal to the MCU when detecting that the user is in a waking state within a seventh time period; and the MCU sends a seventh control signal to the power supply control module according to the waking state signal, so that the power supply control module controls the power supply to continuously supply power to the power consumption module in the wearable device.
5. A power control apparatus of a wearable device, the apparatus comprising:
the gyroscope comprises a power supply, an MCU, a gyroscope, a power supply control module and a power consumption module;
a signal output port of the gyroscope is connected with a signal detection port of the MCU, and a signal input port of the power supply control module is connected with a control signal output port of the MCU; the power input port of the power consumption module is connected with the power supply; wherein,
the MCU is used for detecting the signal output by the gyroscope in real time, sending a first control signal to the power supply control module when no change of the signal output by the gyroscope is detected within a first time span, sending a second control signal to the power supply control module when the change of the signal output by the gyroscope is detected within a second time span after the power supply to the power consumption module is stopped,
the power supply control module is used for controlling a power supply to stop supplying power to the power consumption module according to a first control signal sent by the MCU; and controlling a power supply to continuously supply power to a power consumption module in the wearable device according to a second control signal sent by the MCU.
6. The apparatus of claim 5, further comprising: the human eye detection module is connected with the MCU;
the human eye detection module is used for sending a closed eye state signal to the MCU when detecting that the human eyes are in a closed eye state within a third time length, and sending an eye opening state signal to the MCU when detecting that the human eyes are in an eye opening state within a fourth time length;
the MCU is used for sending a third control signal to the power supply control module according to the eye closing state signal and sending a fourth control signal to the power supply control module according to the eye opening state signal;
the power supply control module is used for controlling a power supply to stop supplying power to the power consumption module in the wearable device according to a third control signal; and the controller is used for controlling the power supply to continuously supply power to the power consumption module in the wearable device according to the fourth control signal.
7. The apparatus of claim 5 or 6, wherein the power consumption module comprises at least one of a speaker, a display, a communication module, a touch chip, and a camera.
8. The apparatus of claim 7, further comprising: the brain wave detection module is connected with the MCU;
the brain wave detection module is used for sending a light sleep state signal to the MCU when detecting that the user is in a light sleep state within a fifth time span, sending a deep sleep state signal to the MCU when detecting that the user is in a deep sleep state within a sixth time span, and sending a waking state signal to the MCU when detecting that the user is in a waking state within a seventh time span;
the MCU is used for sending a fifth control signal to the power supply control module according to the light deep sleep state signal, sending a sixth control signal to the power supply control module according to the deep sleep state signal, and sending a seventh control signal to the power supply control module according to the wakeful state signal;
the power supply control module is used for controlling a power supply to stop supplying power to a part of power consumption modules in the wearable equipment according to a fifth control signal; the power supply is controlled to stop supplying power to all power consumption modules in the wearable device according to a sixth control signal; and the controller is used for controlling the power supply to continuously supply power to all power consumption modules in the wearable device according to the seventh control signal.
9. The apparatus of claim 5, wherein the power control module comprises: the device comprises a field effect tube, a triode, a resistor, a capacitor and a filtering magnetic bead; wherein,
the base electrode of the triode is connected with the signal output end of the MCU, the emitting electrode of the triode is grounded, and the collector electrode of the triode is connected with the grid electrode of the field effect tube;
one end of the resistor is connected with the output end of the power supply, and the other end of the resistor is connected with the collector of the triode;
the source electrode of the field effect transistor is connected with the power supply output end, the drain electrode of the field effect transistor is connected with one end of the capacitor, and the other end of the capacitor is grounded;
the drain electrode of the field effect transistor is connected with one end of the filtering magnetic bead, and the other end of the filtering magnetic bead is connected with the power input end of the power consumption module.
10. The apparatus of claim 7, wherein the field effect transistor is a P-channel MOS transistor; the triode is a digital triode.
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