CN110572868B - Method and device for reducing power consumption of electronic device - Google Patents
Method and device for reducing power consumption of electronic device Download PDFInfo
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- CN110572868B CN110572868B CN201910847339.8A CN201910847339A CN110572868B CN 110572868 B CN110572868 B CN 110572868B CN 201910847339 A CN201910847339 A CN 201910847339A CN 110572868 B CN110572868 B CN 110572868B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
- H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the invention provides a method and equipment for reducing power consumption of electronic equipment, wherein the electronic equipment comprises at least three circuit modules, power consumption elements in the circuit modules are at least partially different, and energy-saving grades corresponding to the circuit modules are different, and the method comprises the following steps: determining a sleep duration of the electronic device; and determining a target energy-saving level corresponding to the electronic equipment according to the sleep time and the sleep time threshold value corresponding to each energy-saving level, controlling each power consumption element in the circuit module corresponding to the target energy-saving level to be powered off, and then controlling the electronic equipment to enter an energy-saving mode corresponding to the target energy-saving level. According to the embodiment of the invention, the power consumption of the electronic equipment can be reduced to a lower level, and the diversified requirements of the application scenes of the Internet of things can be better met.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and a device for reducing power consumption of an electronic device.
Background
The internet of things (IoT) is an extended and expanded network based on the internet, and combines various information sensing devices with the internet to form a huge network, thereby realizing the interconnection and intercommunication of people, machines and things at any time and any place. In practical application, the Power consumption of the internet of things is an important index for evaluating the performance of the internet of things, and a Low Power wide area Network (LPWAN for short) is designed for the application of the internet of things with Low bandwidth, low Power consumption, long distance and large connection, so that support is provided for the diversified application and the rapid development of the internet of things. The LPWAN includes multiple technologies such as a Discontinuous Reception (DRX) Mode, an Extended Discontinuous Reception (eDRX) Mode, a Power Saving Mode (PSM) Mode, and the like, and lays a theoretical foundation for realizing ultra-low Power consumption of the internet of things.
The DRX technology enables the electronic device to periodically enter a sleep state, and the electronic device does not monitor a Physical Downlink Control channel (PDCCH for short) in the sleep state, and wakes up from the sleep state when the PDCCH needs to be monitored, thereby achieving the purpose of saving power. The eDRX technology sets a Paging time window (PTW for short), and the electronic device only needs to periodically enter a sleep state in the PTW window according to the DRX technology, and stays in the sleep state in the rest of time periods, thereby reducing more power consumption than the DRX technology. The PSM technique is equivalent to extending the time interval between two PTW windows of the eDRX technique, making the electronic device sleep between two PTW windows longer, thereby reducing power consumption more than the eDRX technique.
Currently, a time threshold is preset in the electronic device, when the duration of the electronic device after entering the idle state is greater than the time threshold, the electronic device enters an energy saving mode corresponding to the eDRX technology or the PSM technology, otherwise, the electronic device is always in the energy saving mode corresponding to the DRX technology.
However, as the application scenarios of the internet of things are more and more diversified, different electronic devices have different requirements for sleep time, and if all the electronic devices are switched between the power saving mode corresponding to the DRX technology and the power saving mode corresponding to the eDRX or PSM technology only based on a single time threshold, it is difficult to meet the requirement of the internet of things for low power consumption.
Disclosure of Invention
The embodiment of the invention provides a method and equipment for reducing power consumption of electronic equipment, and aims to solve the technical problem that the existing method for reducing power consumption is difficult to meet the low power consumption requirement of the Internet of things.
In a first aspect, an embodiment of the present invention provides a method for reducing power consumption of an electronic device, where the electronic device includes at least three circuit modules, power consuming elements in each of the circuit modules are at least partially different, and energy saving levels corresponding to the circuit modules are different; the method comprises the following steps:
determining a sleep duration of the electronic device;
determining a target energy-saving level corresponding to the electronic equipment according to the sleep duration and the sleep duration threshold value corresponding to each energy-saving level;
sending a control signal to the circuit module corresponding to the target energy-saving level, wherein the control signal is used for controlling each power consumption element in the circuit module corresponding to the target energy-saving level to be powered off;
and controlling the electronic equipment to enter an energy-saving mode corresponding to the target energy-saving level.
In one possible design, before determining the sleep duration of the electronic device, the method further includes:
at least three circuit modules are arranged in the electronic equipment according to the power consumption current of each power consumption element which can be closed when the electronic equipment enters a sleep state and the leakage current threshold condition corresponding to each pre-divided energy-saving grade.
In a possible design, before determining the target energy saving level corresponding to the electronic device according to the sleep duration and the sleep duration threshold corresponding to each energy saving level, the method further includes:
detecting the magnitude of leakage current in the electronic equipment and recovery time required for the electronic equipment to recover from a sleep state to a working state under each energy-saving level;
and calculating the sleep time length threshold value corresponding to each energy-saving grade according to the magnitude of the leakage current and the recovery time length.
In a possible design, the calculating the sleep duration threshold corresponding to the power saving level of each circuit module includes:
calculating a sleep duration threshold value T corresponding to the ith energy-saving level by using the following formula sleep_i ：
Wherein the content of the first and second substances,
respectively representing the recovery time length required by the electronic equipment to recover from the sleep state to the working state under the ith and the (i-1) th energy-saving levels, i is more than or equal to 2, I resume Is shown at T Δresume Average consumption current in said electronic device, I sleep_i 、I sleep_(i-1) Respectively represents the leakage current I in the electronic equipment under the ith and the (I-1) th energy-saving levels sleep_i ＜I sleep_(i-1) ；
And when i =1, using a preset threshold as a sleep duration threshold corresponding to the ith energy saving level.
In a possible design, the determining, according to the sleep duration and the sleep duration threshold corresponding to each energy saving level, a target energy saving level corresponding to the electronic device includes:
determining a sleep duration value interval corresponding to each energy saving grade based on the sleep duration threshold value corresponding to each energy saving grade;
and determining the energy-saving grade corresponding to the sleep duration value interval in which the sleep duration is positioned as the target energy-saving grade.
In one possible design, the controlling the electronic device to enter the energy saving mode corresponding to the target energy saving level includes:
searching a corresponding relation between each pre-established energy-saving grade and an energy-saving mode, and determining the energy-saving mode corresponding to the target energy-saving grade;
and controlling the electronic equipment to enter an energy-saving mode corresponding to the target energy-saving level.
In one possible design, the energy saving mode corresponding to the target energy saving level includes any one of the following energy saving modes:
adjusting an energy-saving mode, an energy-saving mode corresponding to a Discontinuous Reception (DRX) technology, an energy-saving mode corresponding to an extended discontinuous reception (eDRX) technology or an energy-saving mode (PSM) technology, and a predefined energy-saving mode; the adjusting energy-saving mode is an energy-saving mode based on any one of a dynamic frequency adjusting technology, a dynamic voltage adjusting technology and a gated clock technology.
In a second aspect, an embodiment of the present invention provides an apparatus for reducing power consumption of an electronic device, where the electronic device includes at least three circuit modules, power consuming elements in each of the circuit modules are at least partially different, and corresponding energy saving levels of each of the circuit modules are different; the device comprises:
the first determining module is used for determining the sleep time of the electronic equipment;
the second determining module is used for determining a target energy saving level corresponding to the electronic equipment according to the sleep duration and the sleep duration threshold value corresponding to each energy saving level;
the first control module is used for sending a control signal to the circuit module corresponding to the target energy-saving level, wherein the control signal is used for controlling each power consumption element in the circuit module corresponding to the target energy-saving level to be powered down;
and the second control module is used for controlling the electronic equipment to enter an energy-saving mode corresponding to the target energy-saving level.
In a third aspect, an embodiment of the present invention provides an electronic device, including: at least three circuit modules, at least one processor and a memory; the power consumption elements in each circuit module are at least partially different, and the corresponding energy-saving grades of each circuit module are different;
the memory stores computer execution instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the method of reducing power consumption of an electronic device as provided in the first aspect.
In a fourth aspect, an embodiment of the present invention provides a readable storage medium, where a computer executes instructions, and when a processor executes the computer executes the instructions, the method for reducing power consumption of an electronic device as provided in the first aspect is implemented.
According to the method and the device for reducing the power consumption of the electronic device, the electronic device comprises at least three circuit modules, power consumption elements in the circuit modules are at least partially different, and energy saving grades corresponding to the circuit modules are different; the target energy-saving level corresponding to the electronic device can be determined through the sleep time of the electronic device and the sleep time threshold value corresponding to each energy-saving level, each power consumption element in the circuit module corresponding to the target energy-saving level is controlled to be powered off, and then the electronic device can be controlled to enter the energy-saving mode corresponding to the target energy-saving level. In other words, in the embodiment of the present invention, the electronic device is provided with at least three circuit modules in advance, power consuming elements in each circuit module are at least partially different, and the energy saving levels corresponding to each circuit module are different; because the sleep time lengths of the electronic equipment after entering the sleep state are different in different application scenes, the electronic equipment is controlled to enter the energy-saving mode suitable for the current application scene based on the energy-saving level corresponding to the actual sleep time length of the electronic equipment, the power consumption of the electronic equipment can be reduced to a lower level, and the diversified requirements of the application scene of the internet of things can be better met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an energy-saving model of an electronic device according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a method for reducing power consumption of an electronic device according to an embodiment of the present invention;
FIGS. 4a to 4c are schematic diagrams of several energy saving modes provided in the embodiment of the present invention;
FIG. 5 is a block diagram of an apparatus for reducing power consumption of an electronic device according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a hardware structure of another electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The embodiment of the invention can be applied to various electronic devices in various Internet of things or other wireless communication networks, such as cameras, temperature monitoring devices, humidity monitoring devices, intelligent devices installed in vehicles (aviation, maritime and/or land), intelligent televisions, intelligent wearable devices and the like.
It is understood that an electronic device is typically composed of several power consuming elements, each having a different function and power consumption. Exemplarily, referring to fig. 1, fig. 1 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention.
In fig. 1, the electronic device 10 includes memory and processing circuitry 110 that may be included. The storage and processing circuit 110 may include a memory, such as a hard disk drive memory, a non-volatile memory, a volatile memory, and the like, and the embodiments of the present application are not limited thereto. The processing circuitry in storage and processing circuitry 110 may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like. The storage and processing circuitry 110 may be used to run software in the electronic device 10, such as an operating system, application software, and the like. The software may be used to perform control operations such as, for example, camera-based image capture, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functions implemented based on status indicators such as status indicator lights of light emitting diodes, touch event detection based on a touch sensor, functions associated with displaying information on multiple (e.g., layered) displays, operations associated with performing wireless communication functions, operations associated with collecting and generating audio signals, control operations associated with collecting and processing button press event data, and other functions in the electronic device 10, to name a few.
The electronic device 10 may also include input-output circuitry 120. The input-output circuitry 120 may be used to enable the electronic device 10 to enable the input and output of data, i.e., to allow the electronic device 10 to receive data from external devices and also to allow the electronic device 10 to output data from the electronic device 10 to external devices. The input-output circuit 120 may further include a sensor 121. The sensors 121 may include ambient light sensors, proximity sensors based on light and capacitance, touch sensors (e.g., based on optical touch sensors and/or capacitive touch sensors, where the touch sensors may be part of a touch display screen or may be used independently as a touch sensor structure), acceleration sensors, and other sensors, among others.
Input-output circuitry 120 may also include one or more displays, such as display 122. The display 122 may include one or a combination of liquid crystal displays, organic light emitting diode displays, electronic ink displays, plasma displays, displays using other display technologies. The display 122 may include a touch sensor array (i.e., the display 122 may be a touch display screen), and the embodiment of the application is not limited thereto.
The input-output circuitry 120 may also include a communication unit 123, and the communication unit 123 may be used to provide the electronic device 10 with the capability to communicate with external devices. The communication unit 123 may include analog and digital input-output interface circuits, and wireless communication circuits based on radio frequency signals and/or optical signals. The wireless communication circuitry in the communication unit 123 may include radio-frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, filters, and antennas. For example, the wireless Communication circuitry in the Communication unit 123 may include circuitry for supporting Near Field Communication (NFC) by transmitting and receiving Near Field coupled electromagnetic signals. For example, the communication unit 123 may include a near field communication antenna and a near field communication transceiver. The communications unit 123 may also include a cellular telephone transceiver and antenna, a wireless local area network transceiver circuit and antenna, and the like.
The input-output circuit 120 may further include an input-output unit 124. The input-output unit 224 may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes and other status indicators, and the like. A user may enter commands through the input-output circuitry 120 to control the operation of the electronic device 10, and may use the output data of the input-output circuitry 120 to enable receiving status information and other outputs from the electronic device 10.
Further, in a possible embodiment of the present invention, the electronic device includes at least three circuit modules, power consuming elements in each circuit module are at least partially different, and the corresponding power saving levels of each circuit module are different.
Specifically, in the embodiment of the present invention, the number of energy saving levels corresponding to the electronic device (or the number of energy saving modes that the electronic device can enter) may be predetermined, and then, the leakage current threshold condition of the electronic device in the sleep state under each energy saving level is determined.
The higher the energy saving level is, the smaller the leakage current of the electronic device in the sleep state is.
For better understanding of the embodiment of the present invention, referring to table 1, table 1 is an example table of leakage current of the electronic device in a sleep state under each energy saving level in the embodiment of the present invention.
Table 1: leakage current example table of electronic equipment in sleep state under each energy-saving grade
| Energy saving class (i) | Leakage current threshold condition (I) |
| 1 | About 800uA class |
| 2 | About 500uA grade |
| 3 | About 150uA scale |
| 4 | About 5uA scale |
In the embodiment of the present invention, after determining the leakage current threshold condition when the electronic device is in the sleep state under each energy saving level, at least three circuit modules are arranged in the electronic device according to the power consumption current of each power consumption element that can be turned off when the electronic device enters the sleep state and the leakage current threshold condition corresponding to each energy saving level. For any circuit module, after the power-down of the power consumption element in the circuit module, the leakage current in the electronic device meets the leakage current threshold condition corresponding to the energy-saving level of the circuit module.
Specifically, after each circuit module is set, an energy saving model may be determined, referring to fig. 2, and fig. 2 is a schematic diagram of an energy saving model of an electronic device provided in an embodiment of the present invention.
Illustratively, the electronic device may have n power saving levels: the energy-saving level 1 corresponds to the circuit module 1 and corresponds to the energy-saving mode 1; the energy saving class 2 corresponds to the circuit module 2 and corresponds to the energy saving mode 2 at the same time; the energy-saving class 3 corresponds to the circuit module 3 and also corresponds to the energy-saving mode 3; the power saving class n corresponds to the circuit module n and also corresponds to the power saving mode n.
The energy-saving mode 1 may be an energy-saving mode adjusted based on any one of a dynamic frequency adjustment technique, a dynamic voltage adjustment technique, and a gated clock technique; the energy saving mode 2 may be an energy saving mode corresponding to the DRX technology; the energy saving mode 4 may be an energy saving mode corresponding to the eDRX technology or the PSM technology; the energy saving mode 3 may be a predefined energy saving mode, which may be other energy saving modes with feasibility besides the above-mentioned several energy saving modes, and is not limited herein.
Based on the electronic device described in the above embodiment, the method for reducing power consumption of the electronic device provided in the embodiment of the present invention is described in detail below.
Referring to fig. 3, fig. 3 is a schematic flow chart of a method for reducing power consumption of an electronic device according to an embodiment of the present invention, where the method for reducing power consumption of an electronic device includes:
s301, determining the sleep time length of the electronic equipment.
In the embodiment of the invention, when the electronic equipment enters the sleep state, the sleep time length of the electronic equipment is determined firstly.
It can be understood that, for different electronic devices, the sleep time duration of the electronic device after entering the sleep state may also be different. For example, for a shared bicycle lock, an intelligent lock, and the like, an unlocking instruction of a user needs to be responded in time, and the corresponding sleep time length requirement is relatively short, and may need to be within several milliseconds or several seconds; for example, for a cargo logistics monitoring device, the cargo position may only need to be reported once every other period (such as half an hour), and the reporting is not required all the time, and the sleep time of the cargo logistics monitoring device is longer than that of a shared single-vehicle lock, an intelligent lock and the like; for equipment such as remote water meters, gas meters, electricity meters and the like, only water consumption, gas consumption and electricity consumption need to be reported once at a fixed time point (such as No. 1 per month), and the sleeping time of the equipment is longer than that of cargo logistics monitoring equipment.
In addition, for the same electronic device, the sleep duration after entering the sleep state may also be different in different application scenarios. For example, for the air temperature monitoring device, it may report the currently monitored air temperature in real time, or report the monitored air temperature once every other period of time. In the application scene reported in real time, the sleeping time after the temperature monitoring equipment enters the sleeping state is short and can be within milliseconds or seconds; in the application scenario reported at intervals, the sleeping time of the air temperature monitoring device after entering the sleeping state is long, and can be within several minutes or several hours.
S302, determining a target energy saving level corresponding to the electronic equipment according to the sleep duration and the sleep duration threshold value corresponding to each energy saving level.
In the embodiment of the present invention, after the sleep duration of the electronic device is determined, the target energy saving level corresponding to the electronic device is determined by comparing the sleep duration threshold values corresponding to the energy saving levels.
And S303, sending a control signal to the circuit module corresponding to the target energy saving level, wherein the control signal is used for controlling each power consumption element in the circuit module corresponding to the target energy saving level to be powered off.
In the embodiment of the invention, after the target energy saving level corresponding to the electronic equipment is determined, the control signal can be sent to the circuit module corresponding to the target energy saving level to control each power consumption element in the circuit module corresponding to the target energy saving level to be powered off, so that the electronic equipment enters the sleep state corresponding to the target energy saving level.
S304, controlling the electronic equipment to enter an energy-saving mode corresponding to the target energy-saving level.
The energy-saving mode corresponding to the target energy-saving level comprises any one of the following energy-saving modes:
adjusting an energy-saving mode, an energy-saving mode corresponding to a DRX technology, an energy-saving mode corresponding to an eDRX or PSM technology, and a predefined energy-saving mode; the adjusting energy-saving mode is an energy-saving mode based on any one of a dynamic frequency adjusting technology, a dynamic voltage adjusting technology and a gated clock technology.
For better understanding of the present invention, reference is made to fig. 4a to 4c, and fig. 4a to 4c are schematic diagrams illustrating several energy saving modes provided in an embodiment of the present invention.
Fig. 4a is a schematic diagram of a DRX mode, where the electronic device may enter a sleep state periodically every other DRX cycle, and in the sleep state, the electronic device does not monitor a physical downlink control channel, and when a PDCCH needs to be monitored, the electronic device wakes up from the sleep state and enters a working state, thereby achieving a purpose of saving power.
Fig. 4b is a schematic diagram of the eDRX mode, in which the electronic device sets a PTW window, and the electronic device only needs to periodically enter a sleep state according to the DRX technique in the PTW window, and stays in the sleep state in the rest time periods, so that power consumption can be reduced more than that of the DRX technique.
Fig. 4c is a schematic diagram of PSM mode, which corresponds to extending the time interval between two PTW windows of eDRX technology, so that the electronic device sleeps for a longer time between two PTW windows, thereby reducing power consumption more than the eDRX technology.
According to the method for reducing the power consumption of the electronic equipment provided by the embodiment of the invention, the electronic equipment comprises at least three circuit modules, power consumption elements in each circuit module are at least partially different, and the energy-saving grades corresponding to each circuit module are different; the target energy-saving level corresponding to the electronic device can be determined through the sleep time of the electronic device and the sleep time threshold value corresponding to each energy-saving level, each power consumption element in the circuit module corresponding to the target energy-saving level is controlled to be powered off, and then the electronic device can be controlled to enter the energy-saving mode corresponding to the target energy-saving level. In other words, in the embodiment of the present invention, the electronic device is preset with at least three circuit modules, power consuming elements in each circuit module are at least partially different, and the energy saving grades corresponding to each circuit module are different; because the sleep time lengths of the electronic equipment after entering the sleep state are different in different application scenes, the electronic equipment is controlled to enter the energy-saving mode suitable for the current application scene based on the energy-saving level corresponding to the actual sleep time length of the electronic equipment, the power consumption of the electronic equipment can be reduced to a lower level, and the diversified requirements of the application scene of the internet of things can be better met.
Further, to meet the diversification of the application requirements of the internet of things, the eDRX mode or PSM mode cycle time span defined in the 3rd Generation Partnership Project (3 GPP) standard is very large, taking enhanced Machine-Type Communication (eMTC) as an example: eDRX, min =10.24s, max =2621.44s; PSM, min =2s, max =9920h, and time threshold T of entering energy-saving mode corresponding to eDRX or PSM technology with leakage current at uA level psm_hold Usually on the order of minutes, if a particular application of the internet of things is likely to occur or only requires a ratio of T psm_hold When the sleep time is short, the electronic device may have a low probability or may not enter the power saving mode corresponding to the eDRX technology or the power saving mode corresponding to the PSM technology, and the power saving mode corresponding to the eDRX or PSM technology is similar to the nominal power saving mode.
Average standby current I of electronic device in case of eDRX/PSM activation avg It can be calculated by the following formula:
wherein, T drx Representing a time set of a PTW window of the electronic equipment, wherein the system in the time set sleeps according to an energy-saving mode corresponding to a DRX technology; i is drx Represents T drx Average current over a period of time; t is psm Indicating a power saving mode time set corresponding to the eDRX/PSM technology when the eDRX/PSM mode is activated; i is psm Represents T psm Average current over a period of time; t is a unit of resume The recovery time set required for the electronic equipment to recover to the working mode in the energy-saving mode corresponding to the eDRX/PSM technology is shown; i is resume Represents T resume Average current corresponding to the time set; t is psm_wk Representing the energy-saving mode wake-up working time set corresponding to the eDRX/PSM technology; I.C. A psm_wk Represents T psm_wk Average current over time, T total Indicating the total time duration.
From the above formula: within a certain fixed time period, I drx ×T drx +I wk_work ×T wk_work Can be considered to be constant; whether the electronic equipment enters the energy-saving mode corresponding to the eDRX/PSM technology is limited by (I) resume ×T resume +I psm ×T psm ) Generally, the time threshold (defined as T) for the electronic device to enter the power saving mode corresponding to the eDRX/PSM technology psm_hold ) On the order of minutes.
In this embodiment, assume that the electronic device supports infinite energy saving modes and an infinite long time T total N times of sleep/wake-up operations with different monitoring periods occur, as long as a balance point T is obtained between the energy-saving mode and the protection/recovery energy consumption required by the energy-saving mode pm_hold (corresponding to the time threshold of the energy-saving mode), a corresponding optimal energy-saving mode can be always found, so that the optimal standby average current value of the electronic equipment in the period of time can be realized, and the following formula is realized:
wherein, T pmi Represents the length of the ith sleep time; i is pmi Represents T pmi The time period corresponds to the leakage current of the energy-saving mode; t is pmi_resume Indicating the recovery time length required by the ith sleep; I.C. A pmi_resume Represents T pmi_resume Average current over a period of time; t is pmi_wk Representing the time length spent in the ith sleep process; I.C. A pmi_wk Represents T pmi_wk Average current over time.
Based on the above theory, in a feasible embodiment of the present invention, before determining the target energy saving level corresponding to the electronic device according to the sleep duration and the sleep duration threshold corresponding to each energy saving level described in the step S302, the method further includes:
detecting the magnitude of leakage current in the electronic equipment and the recovery time required for the electronic equipment to recover from a sleep state to a working state under each energy-saving level; and calculating the sleep time length threshold value corresponding to each energy-saving grade according to the magnitude of the leakage current and the recovery time length.
It is understood that, since the turned-off power consuming elements are different at each power saving level, the magnitude of the leakage current in the electronic device is different at each power saving level. In addition, when the electronic device is restored from the sleep state to the working state, all the power-down power consumption elements need to be powered on, and because the power-on process of each power consumption element takes a certain time, the more the power consumption elements are turned off, the longer the required restoration time is.
For a better understanding of the embodiments of the invention, the following examples are given:
assuming that the energy saving classes of the electronic device are divided into 4 energy saving classes, referring to table 2, table 2 is a parameter schematic table under each energy saving class in the embodiment of the present invention.
Table 2: various parameter indication tables under various energy-saving levels in the embodiment of the invention
| Energy saving class (i) | Standby current (I) | Recovery duration (t) |
| 1 | About 800uA class | Can be ignored |
| 2 | About 500uA grade | Less than 1 millisecond |
| 3 | About 150uA scale | In the order of milliseconds |
| 4 | About 5uA scale | Second class |
As can be seen from table 2, from power saving class 1 to power saving class 4, the leakage current in the electronic device gradually decreases due to the gradual increase of the power consumption elements that are turned off, but the recovery time period required for the electronic device to recover from the sleep state to the operating state gradually increases.
In the embodiment of the invention, the sleep duration threshold value corresponding to each energy-saving grade can be calculated according to the magnitude of the leakage current in the electronic equipment and the corresponding recovery duration under each energy-saving grade.
Wherein the content of the first and second substances,
assuming normal working energy consumption T for waking up each time work ×I work Similarly, the above formula can be simplified as:
assuming that the average current values for the recovery process are approximately the same, the above equation can be further simplified as:
T Δresume ×I resume ≤T sleep-(i-1) ×I sleep-(i-1) -T sleep_i ×I sleep_f
wherein, T sleep_i Represents a sleep time length threshold value corresponding to the ith energy-saving level,
respectively representing the recovery time length required by the electronic equipment to recover from the sleep state to the working state under the ith and the (i-1) th energy-saving levels, i is more than or equal to 2, I resume Is shown at T Δresume Average consumption current in electronic devices over a period of time, I sleep_i 、I sleep(i-1) Respectively represents leakage current in the electronic equipment under the ith and the (I-1) th energy-saving levels, I sleep_i ＜I sleep(i-1) 。
In addition, I resume_i 、I resume(i-1) Respectively representing the consumed current of the electronic equipment which is recovered from the sleep state to the working state under the ith and the (i-1) th energy-saving levels.
And when i =1, taking a preset threshold value as a sleep duration threshold value corresponding to the ith energy saving level.
According to the method for reducing the power consumption of the electronic equipment, provided by the embodiment of the invention, the sleep duration threshold value corresponding to each energy-saving level is calculated by utilizing the magnitude of the leakage current in the electronic equipment and the recovery duration required by the electronic equipment to recover from the sleep state to the working state under each energy-saving level, so that the target energy-saving level corresponding to the electronic equipment can be determined based on the sleep duration of the electronic equipment and the sleep duration threshold value corresponding to each energy-saving level. That is, in the embodiment of the present invention, the sleep duration threshold corresponding to each energy saving level of the electronic device is determined based on the magnitude of the leakage current in the electronic device and the recovery duration required for the electronic device to recover from the sleep state to the operating state, and when the number of power consumption modules that are turned off in the electronic device is more, the sleep duration threshold is larger.
Further, based on the content described in the foregoing embodiment, in a possible embodiment of the present invention, the determining, according to the sleep duration and the sleep duration threshold corresponding to each energy saving level described in step S302, a target energy saving level corresponding to the electronic device includes:
and determining a sleep time interval corresponding to each energy saving grade based on the sleep time threshold corresponding to each energy saving grade, and determining the energy saving grade corresponding to the sleep time interval in which the sleep time is positioned as a target energy saving grade.
In the embodiment of the present invention, it is assumed that the sleep duration threshold values corresponding to the energy saving level 1 to the energy saving level 4 are T respectively 1 、T 2 、T 3 、T 4 When the sleep time of the electronic equipment is less than T 1 Then, determining that the electronic equipment belongs to the energy-saving level 1; when T is 1 The sleep time of the electronic equipment is less than or equal to T 2 Then, determining that the electronic equipment belongs to the energy-saving level 2; when T is 2 The sleep time of the electronic equipment is less than or equal to T 3 Then, determining that the electronic equipment belongs to the energy-saving grade 3; when T is 3 The sleep time of the electronic equipment is less than or equal to T 4 Then, it is determined that the electronic device belongs to the power saving class 4.
In a possible embodiment of the present invention, a corresponding relationship between each energy saving level and an energy saving mode may be pre-established, for example, energy saving level 1 corresponds to the adjusted energy saving mode, energy saving level 2 corresponds to the energy saving mode corresponding to the DRX technology, and energy saving level 4 corresponds to the energy saving mode corresponding to the eDRX or PSM technology. The energy-saving level 3 can be used as an extended energy-saving mode, and is suitable for the situation that the electronic equipment does not meet the energy-saving mode corresponding to the energy-saving level 2 or the energy-saving mode corresponding to the energy-saving level 4.
After determining a target energy-saving level corresponding to the electronic device and controlling each power consumption element in a circuit module corresponding to the target energy-saving level to be powered off, the pre-established corresponding relationship between each energy-saving level and the energy-saving mode can be searched, the energy-saving mode corresponding to the target energy-saving level is determined, and then the electronic device is controlled to enter the energy-saving mode corresponding to the target energy-saving level.
The method for reducing the power consumption of the electronic device, provided by the embodiment of the invention, is characterized in that a sleep time value interval corresponding to each energy saving level is determined based on a sleep time threshold value corresponding to each energy saving level, the energy saving level corresponding to the sleep time value interval in which the sleep time is positioned is determined as a target energy saving level, and then a pre-established corresponding relationship between each energy saving level and an energy saving mode is searched, so that the energy saving mode corresponding to the target energy saving level can be determined, and the electronic device is controlled to enter the energy saving mode corresponding to the target energy saving level.
Further, an embodiment of the present invention further provides a device for reducing power consumption of an electronic device, and referring to fig. 5, fig. 5 is a schematic block diagram of the device for reducing power consumption of an electronic device according to the embodiment of the present invention. In the embodiment of the invention, the electronic equipment comprises at least three circuit modules, wherein at least part of power consumption elements in each circuit module are different, and the corresponding energy-saving grades of each circuit module are different; the apparatus 50 for reducing power consumption of an electronic device comprises:
a first determining module 501, configured to determine a sleep duration of an electronic device.
A second determining module 502, configured to determine a target energy saving level corresponding to the electronic device according to the sleep duration and a sleep duration threshold corresponding to each energy saving level.
A first control module 503, configured to send a control signal to the circuit module corresponding to the target energy saving level, where the control signal is used to control each power consuming element in the circuit module corresponding to the target energy saving level to power down.
A second control module 504, configured to control the electronic device to enter an energy saving mode corresponding to the target energy saving level.
The implementation principle and technical effect of the apparatus 50 for reducing power consumption of an electronic device are similar to the implementation principle and technical effect of the method for reducing power consumption of an electronic device described in fig. 3, and specific reference may be made to the contents described in the foregoing embodiments, and details of this embodiment are not repeated herein.
In a possible implementation manner, the apparatus 50 for reducing power consumption of an electronic device further includes:
the setting module is used for setting at least three circuit modules in the electronic equipment according to the power consumption current of each power consumption element which can be closed when the electronic equipment enters a sleep state and the leakage current threshold condition corresponding to each energy-saving grade which is divided in advance.
In a possible implementation, the apparatus 50 for reducing power consumption of an electronic device further includes:
and the detection module is used for detecting the magnitude of the leakage current in the electronic equipment and the recovery time required for the electronic equipment to recover from the sleep state to the working state under each energy-saving level.
And the calculating module is used for calculating the sleep time length threshold value corresponding to each energy-saving grade according to the magnitude of the leakage current and the recovery time length.
In a possible implementation, the computing module is configured to:
calculating a sleep duration threshold value T corresponding to the ith energy-saving level by using the following formula sleep_i ：
Wherein the content of the first and second substances,
respectively representing the recovery time length required by the electronic equipment to recover from the sleep state to the working state under the ith and (i-1) th energy-saving levels, i is more than or equal to 2 resume Is shown at T Δresume Average consumption current in said electronic device, I sleep_i 、I sleep_(i-1) Respectively represents leakage current I in the electronic equipment under the ith and the (I-1) th energy-saving levels sleep_i ＜I sleep_(i-1) ；
And when i =1, taking a preset threshold value as a sleep duration threshold value corresponding to the ith energy saving level.
In one possible implementation, the second determining module 502 is configured to: determining a sleep duration value interval corresponding to each energy saving grade based on the sleep duration threshold value corresponding to each energy saving grade; and determining the energy-saving grade corresponding to the sleep duration value interval in which the sleep duration is positioned as the target energy-saving grade.
In one possible implementation, the second control module 504 is configured to: searching a corresponding relation between each pre-established energy-saving grade and an energy-saving mode, and determining the energy-saving mode corresponding to the target energy-saving grade; and controlling the electronic equipment to enter an energy-saving mode corresponding to the target energy-saving level.
In a possible embodiment, the energy saving mode corresponding to the target energy saving level includes any one of the following energy saving modes:
adjusting an energy-saving mode, an energy-saving mode corresponding to a DRX technology, an energy-saving mode corresponding to an eDRX or PSM technology, and a predefined energy-saving mode; the energy-saving mode is adjusted based on any one of a dynamic frequency adjustment technology, a dynamic voltage adjustment technology and a gated clock technology.
An embodiment of the present invention further provides an electronic device, including: the energy-saving control circuit comprises at least three circuit modules, at least one processor and a memory, wherein at least part of power consumption elements in each circuit module are different, and the corresponding energy-saving grades of each circuit module are different; the memory stores computer-executable instructions; the at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor can be used to execute the method for reducing power consumption of an electronic device as described in fig. 3, which has similar implementation principles and technical effects, and this embodiment is not described herein again.
For better understanding of the embodiment of the present invention, referring to fig. 6, fig. 6 is a schematic diagram of a hardware structure of another electronic device provided in the embodiment of the present invention. Specifically, the device 60 includes a processor 601 and a memory 602; wherein:
a memory 602 for storing computer-executable instructions;
a processor 601, configured to execute computer-executable instructions stored in a memory, to implement the steps of the unauthorized frequency measurement method in the foregoing embodiments. Reference may be made in particular to the description relating to the method embodiments described above.
Alternatively, the memory 602 may be separate or integrated with the processor 601. When the memory 602 is separately provided, the device further comprises a bus 603 for connecting said memory 602 and the processor 601.
An embodiment of the present invention further provides a readable storage medium, in which computer executable instructions are stored, and when a processor executes the computer executable instructions, the method for reducing power consumption of an electronic device as described in fig. 3 is implemented.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules 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.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.
It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of hardware and software modules.
The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A method for reducing power consumption of electronic equipment is characterized in that the electronic equipment comprises at least three circuit modules, power consumption elements in each circuit module are at least partially different, and energy saving grades corresponding to the circuit modules are different; the energy-saving grade corresponds to the circuit module and corresponds to an energy-saving mode;
the method comprises the following steps:
determining a sleep duration of the electronic device;
determining a target energy-saving level corresponding to the electronic equipment according to the sleep duration and the sleep duration threshold value corresponding to each energy-saving level;
sending a control signal to the circuit module corresponding to the target energy-saving level, wherein the control signal is used for controlling each power consumption element in the circuit module corresponding to the target energy-saving level to be powered off;
controlling the electronic equipment to enter an energy-saving mode corresponding to the target energy-saving level;
before determining the sleep duration of the electronic device, the method further includes:
setting at least three circuit modules in the electronic equipment according to the power consumption current of each power consumption element which can be closed when the electronic equipment enters a sleep state and the leakage current threshold condition corresponding to each pre-divided energy-saving grade;
before determining the target energy saving level corresponding to the electronic device according to the sleep duration and the sleep duration threshold corresponding to each energy saving level, the method further includes:
detecting the magnitude of leakage current in the electronic equipment and recovery time required by the electronic equipment to recover from a sleep state to a working state under each energy-saving level;
and calculating the sleep time length threshold value corresponding to each energy-saving grade according to the magnitude of the leakage current and the recovery time length.
2. The method of claim 1, wherein the calculating the sleep duration threshold corresponding to each energy saving level comprises:
calculating a sleep time threshold T corresponding to the ith energy-saving level sleep_i ：
When i =1, taking a preset threshold value as a sleep duration threshold value corresponding to the ith energy saving level;
when i is more than or equal to 2, calculating a sleep time length threshold value T corresponding to the ith energy-saving grade by using the following formula sleep_i ：
Wherein the content of the first and second substances,
respectively showing the recovery time length I required by the electronic equipment to recover from the sleep state to the working state under the ith and the (I-1) th energy-saving levels resume Is shown at T Δresume The electronic deviceAverage current consumption in standby, I sleep_i 、I sleep_(i-1) Respectively represents leakage current I in the electronic equipment under the ith and the (I-1) th energy-saving levels sleep_i ＜I sleep_(i-1) 。
3. The method according to claim 1 or 2, wherein the determining a target energy saving level corresponding to the electronic device according to the sleep duration and the sleep duration threshold corresponding to each energy saving level includes:
determining a sleep time value interval corresponding to each energy saving grade based on the sleep time threshold value corresponding to each energy saving grade;
and determining the energy-saving grade corresponding to the sleep duration value interval in which the sleep duration is positioned as the target energy-saving grade.
4. The method according to claim 3, wherein the controlling the electronic device to enter the energy saving mode corresponding to the target energy saving level comprises:
searching a corresponding relation between each pre-established energy-saving grade and an energy-saving mode, and determining the energy-saving mode corresponding to the target energy-saving grade;
and controlling the electronic equipment to enter an energy-saving mode corresponding to the target energy-saving level.
5. The method according to any one of claims 1, 2 or 4, wherein the energy saving mode corresponding to the target energy saving level comprises any one of the following energy saving modes:
adjusting an energy-saving mode, an energy-saving mode corresponding to a Discontinuous Reception (DRX) technology, an energy-saving mode corresponding to an extended discontinuous reception (eDRX) technology or an energy-saving mode (PSM) technology, and a predefined energy-saving mode; the adjusting energy-saving mode is an energy-saving mode based on any one of a dynamic frequency adjusting technology, a dynamic voltage adjusting technology and a gated clock technology.
6. The device for reducing the power consumption of the electronic equipment is characterized in that the electronic equipment comprises at least three circuit modules, power consumption elements in the circuit modules are at least partially different, and the corresponding energy-saving grades of the circuit modules are different; the energy-saving grade corresponds to the circuit module and corresponds to an energy-saving mode; the device comprises:
the first determining module is used for determining the sleep time of the electronic equipment;
the second determining module is used for determining a target energy saving level corresponding to the electronic equipment according to the sleep duration and the sleep duration threshold value corresponding to each energy saving level;
the first control module is used for sending a control signal to the circuit module corresponding to the target energy-saving level, wherein the control signal is used for controlling each power consumption element in the circuit module corresponding to the target energy-saving level to be powered down;
the second control module is used for controlling the electronic equipment to enter an energy-saving mode corresponding to the target energy-saving level;
the device comprises a setting module, a judging module and a judging module, wherein the setting module is used for setting at least three circuit modules in the electronic equipment according to the power consumption current of each power consumption element which can be closed when the electronic equipment enters a sleep state and the leakage current threshold condition corresponding to each pre-divided energy-saving grade before determining the sleep time length of the electronic equipment;
the detection module is used for detecting the magnitude of leakage current in the electronic equipment and the recovery time required for the electronic equipment to recover from the sleep state to the working state under each energy-saving level;
and the calculating module is used for calculating the sleep time length threshold value corresponding to each energy-saving grade according to the magnitude of the leakage current and the recovery time length.
7. An electronic device, comprising: at least three circuit modules, at least one processor and a memory; the power consumption elements in each circuit module are at least partially different, and the energy saving grades corresponding to each circuit module are different;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the method of reducing power consumption of an electronic device of any of claims 1 to 5.
8. A readable storage medium having stored therein computer executable instructions which, when executed by a processor, implement the method of reducing power consumption of an electronic device according to any one of claims 1 to 5.
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| CN115515209A (en) * | 2021-06-23 | 2022-12-23 | 中移物联网有限公司 | Low-power-consumption communication method, device, terminal equipment, storage medium and system |
| CN115549228A (en) * | 2021-06-30 | 2022-12-30 | 上海华为技术有限公司 | Power backup method and related equipment |
| CN115635483A (en) * | 2022-10-21 | 2023-01-24 | 盈合(深圳)机器人与自动化科技有限公司 | Robot energy-saving method and energy-saving robot |
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