CN114024356B

CN114024356B - Power management method, device and circuit

Info

Publication number: CN114024356B
Application number: CN202210000560.1A
Authority: CN
Inventors: 卓训隆; 潘嘉明; 陈彬; 于海波
Original assignee: Yunding Network Technology Beijing Co Ltd
Current assignee: Yunding Network Technology Beijing Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-05-10
Anticipated expiration: 2042-01-04
Also published as: CN114024356A

Abstract

The embodiment of the application discloses a power management method, a power management device and a power management circuit. One embodiment of the method comprises: estimating the power supply current of a power supply under the starting condition of a target device before the target device is started; if the estimated supply current exceeds the maximum supply current of the power supply, performing energy-saving operation; after the power-saving operation is performed, the target device is turned on. The power management method, the power management device and the power management circuit disclosed by the embodiment of the application can ensure the normal operation of the target device by executing energy-saving operation on other devices.

Description

Power management method, device and circuit

Technical Field

The embodiment of the application relates to the field of power management, in particular to a power management method, a power management device and a power management circuit.

Background

With the improvement of the technological level, the use of electronic locks is more and more common.

Electronic locks generally use a battery as a power source, and the battery provides power for various devices of the electronic lock. However, as time goes on, the electric energy in the battery is less and less, so that the electric energy required for normal operation of the driving motor of the electronic lock cannot be provided.

Of course, the same problems may exist with respect to the operation of devices in other devices than electronic locks.

Disclosure of Invention

The embodiment of the application provides a power management method, a power management device and a power management circuit.

In a first aspect, an embodiment of the present application provides a power management method, where the method includes:

before a target device is started, estimating the power supply current of a power supply under the starting condition of the target device, wherein the power supply supplies power to at least partial devices, and the at least partial devices comprise the target device;

if the estimated supply current exceeds the maximum supply current of the power supply, performing power saving operation, wherein the power saving operation at least comprises at least one of the following operations:

a first operation: turning off at least one device currently powered by the power supply;

a second operation: controlling at least one device which is powered by the power supply at present to operate in an energy-saving mode;

after the power-saving operation is performed, the target device is turned on.

In some embodiments, the determining of the maximum supply current of the power supply comprises:

determining a maximum supply current corresponding to a present temperature of the power supply based on a correspondence of temperature to maximum supply current.

In some embodiments, the estimating a supply current of the power supply with the target device turned on includes:

when the power parameters required by the operation of the target device are stored, estimating the power supply current required to be increased by the power supply after the target device is started according to the power parameters;

and obtaining the power supply current of the power supply when the target device is started based on the current power supply current of the power supply and the power supply current needing to be increased.

In some embodiments, the process of detecting the current supply current of the power supply comprises:

collecting voltage signals at two sides of a first resistor connected in series with an output end of the power supply;

determining a current flowing through the first resistor based on the voltage signal and a resistance value of the first resistor;

and determining the current flowing through the first resistor as the current supply current of the power supply.

In some embodiments, the input power of the target device is greater than a preset threshold, and/or the power source is a battery.

In a second aspect, an embodiment of the present application provides a power management device, including: a current estimation unit, an energy-saving operation unit and a device start-up unit,

the current estimation unit is configured to perform: before a target device is started, estimating the power supply current of a power supply under the starting condition of the target device, wherein the power supply supplies power to at least partial devices, and the at least partial devices comprise the target device;

the energy-saving operation unit is configured to perform: performing a power saving operation in a case where the supply current estimated by the current estimation unit exceeds a maximum supply current of the power supply, the power saving operation including at least one of:

the device turn-on unit configured to perform: after the power-saving operation is performed, the target device is turned on.

In a third aspect, an embodiment of the present application provides a power management circuit, including: a controller and at least some devices, the at least some devices including a target device, the controller being electrically connected to the at least some devices;

before the target device is started, the controller estimates the power supply current of a power supply under the starting condition of the target device, wherein the power supply supplies power to at least part of devices; if the estimated supply current exceeds the maximum supply current of the power supply, the controller performs a power saving operation, the power saving operation including at least one of:

the controller turns on the target device after performing the power saving operation.

In some embodiments, the power management circuit further comprises: the input end of the current detection circuit is electrically connected with the output end of the power supply so as to collect the power supply current of the power supply, and the output end of the current detection circuit is electrically connected with the controller;

the controller estimates a supply current of a power supply of the target device under a starting condition, and is specifically configured to:

when the power parameters required by the operation of the target device are stored, the controller estimates the power supply current required to be increased by the power supply after the target device is started according to the power parameters; and the controller obtains the power supply current of the power supply under the condition that the target device is started based on the current power supply current of the power supply acquired by the current detection circuit and the power supply current needing to be increased.

In some embodiments, the power management circuit further comprises: the temperature sensor is arranged at a position capable of detecting the temperature of the power supply, and the temperature sensor is electrically connected with the controller;

the controller determines a maximum supply current of the power supply, and is specifically configured to:

the controller determines a maximum supply current corresponding to the current temperature of the power supply acquired by the temperature sensor based on a correspondence between the temperature and the maximum supply current.

In a fourth aspect, the present application provides a computer-readable medium, on which a computer program is stored, where the program, when executed by a processor, implements the method as described in any implementation manner of the first aspect.

In a fifth aspect, the present application provides a processor, configured to execute a program, where the program executes to perform the method described in any implementation manner of the first aspect.

In a sixth aspect, an embodiment of the present application provides an electronic device, including: one or more processors; a storage device having one or more programs stored thereon; the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method as described in any implementation of the first aspect.

According to the power management method, the power management device and the power management circuit, before the target device is started, the power supply current of the power supply of the target device under the starting condition can be estimated, under the condition that the power supply current estimated by the current estimation unit exceeds the maximum power supply current of the power supply, energy-saving operation is executed, and then the target device is started. The embodiment of the application can ensure the normal operation of the target device by executing energy-saving operation on other devices.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some examples or embodiments of the present application, and that for a person skilled in the art, other drawings can be obtained from the provided drawings without inventive effort, and that the present application can also be applied to other similar scenarios from the provided drawings. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.

FIG. 1 is an exemplary system architecture diagram to which some embodiments of the present application may be applied;

FIG. 2 is a flow diagram of one embodiment of a power management method according to the present application;

FIG. 3 is a schematic block diagram of one embodiment of a power management device according to the present application;

FIG. 4 is a schematic diagram of one embodiment of a power management circuit according to the present application;

FIG. 5 is a schematic block diagram of an electronic device suitable for use in implementing some embodiments of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. The described embodiments are only some embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings. The embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be understood that "system", "apparatus", "unit" and/or "module" as used herein is a method for distinguishing different components, elements, parts or assemblies at different levels. However, other words may be substituted by other expressions if they accomplish the same purpose.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements. An element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Flow charts are used herein to illustrate operations performed by systems according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, the various steps may be processed in reverse order or simultaneously. Meanwhile, other operations may be added to the processes, or a certain step or several steps of operations may be removed from the processes.

Fig. 1 illustrates an exemplary system architecture 100 to which some embodiments of the power management methods or power management apparatus of the present application may be applied.

As shown in fig. 1, the system architecture 100 may include a controller 101, a battery 102, a drive motor 103, a lock body 104 of an electronic lock, and a speaker 105. The controller 101, the driving motor 103 and the speaker 105 are all electrically connected with the battery 102, and the battery 102 provides electric energy for the controller 101, the driving motor 103 and the speaker 105. The controller 101 is electrically connected to the speaker 105 and the driving motor 103, respectively, and the controller 101 can control the operation of the speaker 105 and the driving motor 103. The driving motor 103 may be in transmission connection with the lock body 104 of the electronic lock, and the driving motor 103 provides a driving force for the motion of the lock body 104 of the electronic lock to drive the lock body 104 of the electronic lock to perform unlocking or locking motions.

The lock body 104 of the electronic lock is driven by the driving motor 103 every time the unlocking or locking operation is required. In some cases, the battery 102 may not provide the driving motor 103 with the electric energy required for its normal operation, and the driving motor 103 may not operate normally, for example: insufficient driving force is provided by the driving motor 103, or the rotational speed of the driving motor 103 is too slow, and the like. This will result in the lock body 104 of the electronic lock not being able to perform normal unlocking or locking actions.

Some or all of the controller 101, the battery 102, the driving motor 103, the lock body 104 of the electronic lock, and the speaker 105 shown in fig. 1 may be part of the electronic lock. For example: the battery 102 may be an integral part of the electronic lock or may be a power source other than the electronic lock. The controller 101 shown in fig. 1 may be a controller in an electronic lock, or may be a controller in other devices besides the electronic lock, for example: a controller in a mobile phone or a controller of an intelligent gateway, etc.

With continued reference to FIG. 2, a flow 200 of one embodiment of a power management method according to the present application is shown. The power management method comprises the following steps:

step 201, before the target device is turned on, estimating a power supply current of a power supply of the target device under the condition of turning on, wherein the power supply supplies power to at least part of devices, and at least part of devices comprise the target device.

In this embodiment, an execution subject of the power management method may be the controller 101 shown in fig. 1, or may be a controller in another device (such as an intelligent gateway).

The target device may be any device that can operate only by supplying power to the target device, which is not limited in this embodiment of the present application. In an alternative embodiment, the power required for the target device to start up may be greater than that required for other devices, such as: the input power of the target device is larger than a preset threshold value or the input power of the target device is larger than that of other devices powered by the power supply.

Currently, the target device may also be a device set by the user, such as: if the operation of a certain device is important, the device can be determined as a target device so as to ensure the normal starting of the target device.

Before step 201, the embodiment of the present application may also perform other processes, for example: a start-up request for the target device is received, and step 201 is executed again in response to the start-up request. The opening request may be sent by a device, and the device may have an identity authentication function. The device may be: fingerprint identification devices, Near Field Communication (NFC) devices, controllers for electronic locks, and the like. After the device having the authentication function completes authentication, the device may send the start request to an execution main body (e.g., the controller 101 in fig. 1) that executes the power management method of the embodiment.

Of course, the executing entity (for example, the controller 101 in fig. 1) executing the power management method of the present embodiment may also perform the identity authentication, determine that the target device needs to be turned on after the identity authentication is completed, and then perform step 201.

Alternatively, the power source may be a battery. Further, the power source may be a non-rechargeable battery (such as a dry battery), or a rechargeable battery (such as a lithium battery).

As will be understood by those skilled in the art, when outputting electric energy, the non-rechargeable battery and the rechargeable battery that is not in a charging state have limited electric energy, so as to decrease the electric energy possessed by the battery or change the external environment (such as the external temperature), the battery may not provide the target device with the electric energy required by the target device for normal operation. Therefore, in the embodiment of the application, before the target device is started, the power supply current of the power supply of the target device under the starting condition is estimated, and whether the battery can provide the electric energy required by the normal operation of the target device for the target device can be determined before the target device is started.

Optionally, the specific process of estimating the supply current of the power supply when the target device is turned on in step 201 may include:

and obtaining the power supply current of the power supply under the starting condition of the target device based on the current power supply current of the power supply and the power supply current needing to be increased.

The power parameter may be input power, and the power parameter may be: an input voltage and an input current. It is understood that after obtaining the input voltage and the input current, the input power (input power = input voltage × input current) is obtained.

The process of estimating the supply current required to be increased by the power supply after the target device is turned on according to the power parameter may include:

and obtaining input power required by the operation of the target device based on the stored power parameters, dividing the input power by the rated output voltage of the power supply, and determining the calculation result as the estimation result of the power supply current required to be increased by the power supply after the target device is started.

In other embodiments, the specific process of estimating the supply current of the power supply with the target device being turned on in step 201 may include:

and determining the power supply current increased by the power supply obtained by the test as follows based on the test result of the power supply current increased by the power supply under the condition that the target device is switched on: the power supply needs to increase the supply current after the target device is started;

An optional embodiment of the present application may test the supply current increased by the power supply when at least one device is turned on, and save the test result.

Optionally, the current supply current of the power supply may include:

collecting voltage signals at two sides of a first resistor connected in series with an output end of a power supply;

the current flowing through the first resistor is determined as the current supply current of the power supply.

It will be understood by those skilled in the art that there are currently many mature ways of detecting the current supply current of the power supply, and the embodiments of the present application are not limited thereto. For example: the Hall current sensor is used for collecting the current power supply current of the power supply, the principle of the Hall current sensor is that a magnetic field generated by current in a primary side conductor is detected between Hall devices, a voltage signal is output after linear amplification, and the magnitude of the current is converted through the output voltage according to Hall Sensitivity (Sensitivity) characteristics.

Step 202, if the estimated supply current exceeds the maximum supply current of the power supply, performing an energy saving operation, where the energy saving operation includes at least one of the following operations:

a second operation: at least one device that controls the current power supplied by the power supply operates in a power-saving mode.

The maximum supply current of the power supply can be determined in various ways, for example: the power supply is actually tested, obtained directly from a test report for the battery, obtained from a battery manufacturer, etc. For a power supply, the maximum power supply current of the power supply obtained in the embodiment of the present application may be one current value, or may be multiple sets of data. Each group of data in the multiple groups of data is: a temperature value and a current value of the maximum power supply current corresponding to the temperature value.

In an alternative embodiment, the determining of the maximum supply current of the power supply may include:

and determining the maximum power supply current corresponding to the current temperature of the power supply based on the corresponding relation between the temperature and the maximum power supply current.

Because the maximum supply current of the power supply is easily influenced by the current temperature of the power supply, the maximum supply current determined based on the corresponding relation between the temperature and the maximum supply current is more accurate.

If the estimated supply current exceeds the maximum supply current of the power supply, it indicates that the power supply may not be able to provide the target device with the power required for its normal operation. At this time, step 202 may first reduce the power output burden of the power supply through a power-saving operation, so that the power supply may provide the target device with power required for its normal operation.

Wherein the first operation may shut down at least one device currently powered by the power supply, it is understood that the device that is shut down in the first operation will no longer consume power, and at this time the power supply need not provide power for the device that is shut down in the first operation, and both the output power and the output current of the power supply will be reduced. For example: the rated voltage of a certain device is 5V, the current required by the device to operate is 3A, and the operating power of the device is 15W. If the device is turned off, the device will no longer consume power and the output power of the power supply will be reduced by 15W. If the output voltage of the power supply is 10V, the output current of the power supply will decrease by 1.5A.

The second operation may control at least one device currently powered by the power supply to switch from the normal operating mode to the power saving mode. It will be appreciated that the device operating in the power saving mode will operate at less power and require less current to operate than in the normal operating mode. For example: the rated voltage of a certain device is 5V, the current required by the device to operate in the normal operation mode is 3A, the current required by the device to operate in the energy-saving mode is 1A, the operation power of the device in the energy-saving mode is 5W, and the operation power is reduced by 10W compared with the operation power (15W) in the normal operation mode. If the output voltage of the power supply is 10V, after the device is switched from the normal operation mode to the energy-saving mode, the output current of the power supply is reduced by 1A, and the output power of the power supply is reduced by 10W.

Both the first operation and the second operation in step 202 can reduce the power output burden of the power supply. In practical applications, one of the operations may be selected to be executed in the embodiments of the present application, or both of the operations may be executed simultaneously.

Optionally, the specific process of performing the energy saving operation in step 202 in the embodiment of the present application may be implemented in many different ways, and several of them are exemplarily disclosed below:

and selecting at least one device from the devices currently supplied by the power supply based on at least one of the power parameters of the devices currently supplied by the power supply, the power supply priority ranking of the devices currently supplied by the power supply and the association degree of the devices currently supplied by the power supply and the target device, and executing energy-saving operation on the selected device.

The power parameter may be input power, and the power parameter may be: an input voltage and an input current. It will be appreciated that after the input voltage and input current are obtained, the input power is available. It can be understood that the larger the input power of the device is, the more electric energy it consumes, so that the energy-saving operation can be performed on the device with higher input power, so as to greatly reduce the energy consumption burden of the power supply.

The power supply priority is an important degree for keeping a device normally running, and if it is important for keeping a certain device normally running, the embodiment of the present application may not perform the energy saving operation on the certain device. For example: in the electronic lock, it is important that devices such as a memory and a controller keep normal operation, and the embodiment of the present application may not perform the energy saving operation on the devices. And the importance of the loudspeaker is relatively low, the embodiment of the application can perform energy-saving operation on the loudspeaker.

The association degree with the target device may be an association degree between an operation process of a device currently powered by the power supply and an operation process of the target device. If the correlation between the operation process of a certain device and the operation process of the target device is high, the embodiment of the present application may not perform the energy saving operation on the certain device. For example: if the target device is a driving motor of the electronic lock, the controller needs to control the operation of the driving motor in the electronic lock, so that the correlation between the operation of the driving motor and the operation of the controller is high. And the correlation degree between the operation of the loudspeaker and the operation of the controller is low, the embodiment of the application can perform energy-saving operation on the loudspeaker.

Step 203, after the energy-saving operation is performed, the target device is turned on.

The output current and the output power of the power supply can be reduced regardless of the first operation or the second operation, so that the power supply can provide more output current and output power for the start-up of the target device. For example: and at the first moment, the power supply simultaneously supplies power to the first device and the second device, wherein the running power of the first device is 30W, the running power of the second device is 15W, and the output power of the power supply is 45W. If the output voltage of the power supply is 10V, the output current of the power supply is 4.5A. Assuming that the operating power of the target device is 60W, the power supply needs to simultaneously supply power to the first device, the second device and the target device if the power saving operation is not performed. If the first device, the second device and the target device are powered simultaneously, the output power of the power supply should be 105W, and if the output voltage of the power supply is 10V, the output current of the power supply should be 10.5A. If the power supply can only output 9A of current at most due to some reasons (such as insufficient power in the power supply or too low power supply temperature), the power supply cannot output 10.5A of current, and in this case, the power supply cannot drive the target device to start normally. If step 202 of the embodiment of the present application executes the energy saving operation to turn off the first device and then step 203 is executed to turn on the target device, the current required to be output when the power supply simultaneously supplies power to the second device and the target device should be 7.5A, and the calculation formula is: output current = (15W + 60W) ÷ 10V. If the power supply can only output 9A of current at most for some reason (such as insufficient power in the power supply or too low temperature of the power supply), the power supply can output 7.5A of current, that is: the power supply can drive the target device to start normally.

Optionally, in other embodiments, the method shown in fig. 2 may further include:

after the target device is shut down, executing a recovery operation, wherein the recovery operation comprises at least one of the following operations:

a third operation: restarting the device which is closed when the energy-saving operation is executed;

a fourth operation: the operation mode of the device controlled to operate in the power saving mode when the power saving operation is performed is restored to the normal operation mode.

It is understood that if the power saving operation performed in step 202 includes the first operation, the recovery operation may include the third operation; if the power saving operation performed in step 202 includes the second operation, the recovery operation may include a fourth operation.

According to the power management method provided by the embodiment of the application, before the target device is started, the power supply current of the power supply of the target device under the starting condition can be estimated, and under the condition that the power supply current estimated by the current estimation unit exceeds the maximum power supply current of the power supply, the energy-saving operation is executed, and then the target device is started. The embodiment of the application can ensure the normal operation of the target device by executing energy-saving operation on other devices.

With further reference to fig. 3, as an implementation of the methods shown in some of the above figures, the present application provides an embodiment of a power management apparatus, which corresponds to the embodiment of the method shown in fig. 2, and which can be applied in various electronic devices.

As shown in fig. 3, a power management device 300 of the present embodiment includes: a current estimation unit 301, a power-saving operation unit 302, and a device turn-on unit 303.

A current estimation unit 301 configured to perform: before the target device is started, estimating the power supply current of a power supply under the starting condition of the target device, wherein the power supply supplies power to at least part of devices, and at least part of devices comprise the target device.

An energy-saving operation unit 302 configured to perform: performing a power saving operation in case the supply current estimated by the current estimation unit exceeds a maximum supply current of the power supply, the power saving operation including at least one of:

A device turn-on unit 303 configured to perform: after the power-saving operation is performed, the target device is turned on.

In this embodiment, the detailed processing of the current estimation unit 301, the energy-saving operation unit 302, and the device start unit 303 and the technical effects thereof can refer to the related descriptions of the embodiments of step 201, step 202, and step 203 in the corresponding embodiment of fig. 2, which are not described herein again.

In some optional implementations of the present embodiment, the power management apparatus 300 shown in fig. 3 further includes:

a current determination unit configured to perform: and determining the maximum power supply current corresponding to the current temperature of the power supply based on the corresponding relation between the temperature and the maximum power supply current.

In some optional implementations of the present embodiment, the current estimation unit 301 estimates a supply current of a power supply with the target device being turned on, and is specifically configured to perform: when the power parameters required by the operation of the target device are stored, estimating the power supply current required to be increased by the power supply after the target device is started according to the power parameters; and obtaining the power supply current of the power supply under the starting condition of the target device based on the current power supply current of the power supply and the power supply current needing to be increased.

In some optional implementations of this embodiment, the power management apparatus further includes: a current detection unit configured to perform:

collecting voltage signals at two sides of a first resistor connected in series with an output end of a power supply; determining a current flowing through the first resistor based on the voltage signal and a resistance value of the first resistor; the current flowing through the first resistor is determined as the current supply current of the power supply.

In some optional implementations of this embodiment, the input power of the target device is greater than a preset threshold, and/or the power source is a battery.

It should be noted that the power management apparatus 300 may be a chip, a component or a module, the power management apparatus 300 may include a processor and a memory, the current estimation unit 301, the power saving operation unit 302, the device turning-on unit 303, and the like are all stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.

The processor may include a kernel, which calls the corresponding program unit from the memory. The kernel can be provided with one or more cores, and power management is carried out by adjusting kernel parameters.

The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), including at least one memory chip.

The power management device provided by the above embodiment of the application can estimate the power supply current of the power supply of the target device under the starting condition before the target device is started; if the estimated supply current exceeds the maximum supply current of the power supply, performing energy-saving operation; after the power-saving operation is performed, the target device is turned on. The power management device disclosed in the embodiment of the application can ensure the normal operation of the target device by executing energy-saving operation on other devices.

With further reference to fig. 4, as an implementation of the method shown in some of the above figures, the present application provides an embodiment of a power management circuit, which corresponds to the embodiment of the method shown in fig. 2.

With further reference to fig. 4, which shows a schematic diagram of one embodiment of a power management circuit 400, as shown in fig. 4, the power management circuit 400 may include: a controller 401 and at least some of the devices 410, at least some of the devices 410 including a target device 411 and other devices 412, the controller 401 being electrically connected to at least some of the devices 410. The three black dots to the right of the other devices 412 in fig. 4 indicate that at least one other device 412 may be included in at least a portion of the device 410 shown in fig. 4.

In fig. 4, power supply 402 provides power to controller 401 and at least a portion of device 410.

Before the target device 411 is turned on, the controller 401 estimates the power supply current of the power supply 402 when the target device 411 is turned on, wherein the power supply 402 supplies power to at least part of the device 410; if the estimated supply current exceeds the maximum supply current of the power source 402, the controller 401 performs power saving operations, which include at least one of:

a first operation: at least one device (e.g., other device 412 shown in FIG. 4) that is currently powered by power source 402;

a second operation: at least one device that controls the current power supplied by the power source 402 operates in a power-saving mode (e.g., other device 412 shown in FIG. 4);

the controller 401 turns on the target device 411 after performing the power saving operation.

In this embodiment, the detailed processing of the controller 401 and the technical effects thereof can refer to the related descriptions of the embodiments of step 201, step 202, and step 203 in the corresponding embodiment of fig. 2, which are not repeated herein.

In some optional implementations of this embodiment, the power management circuit shown in fig. 4 further includes: the input end of the current detection circuit is electrically connected with the output end of the power supply 402 so as to collect the power supply current of the power supply 402, and the output end of the current detection circuit is electrically connected with the controller 401;

the controller 401 estimates the supply current of the power supply 402 when the target device 411 is turned on, and is specifically configured to:

when the power parameters required by the operation of the target device 411 are stored, the controller 401 estimates the power supply current required to be increased by the power supply 402 after the target device 411 is turned on according to the power parameters; the controller 401 obtains the supply current of the power source 402 when the target device 411 is turned on, based on the current supply current of the power source 402 and the supply current that needs to be increased, which are acquired by the current detection circuit.

In some optional implementations of this embodiment, the power management circuit shown in fig. 4 further includes: a temperature sensor disposed at a position where the temperature of the power source 402 can be detected, the temperature sensor being electrically connected to the controller 401;

the controller 401 determines the maximum supply current of the power supply 402, and is specifically configured to:

the controller 401 determines the maximum supply current corresponding to the current temperature of the power source 402 collected by the temperature sensor based on the correspondence relationship between the temperature and the maximum supply current.

In some alternative implementations of the present embodiment, the target device 411 is a driving motor of an electronic lock, and the power source 402 is a battery.

The power management circuit provided by the above embodiment of the application can estimate the supply current of the power supply of the target device under the starting condition before the target device is started; if the estimated supply current exceeds the maximum supply current of the power supply, performing energy-saving operation; after the power-saving operation is performed, the target device is turned on. The power management circuit disclosed in the embodiment of the application can ensure the normal operation of the target device by executing energy-saving operation on other devices.

Referring now to FIG. 5, shown is a schematic diagram of an electronic device 500 suitable for use in implementing some embodiments of the present application. The electronic device shown in fig. 5 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.

As shown in fig. 5, the electronic device 500 may include a processor 501, a memory 502, a communication interface 503, an input unit 504, an output unit 505, and a communication bus 506. Wherein the processor 501 and the memory 502 are connected to each other via a communication bus 506. A communication interface 503, an input unit 504 and an output unit 505 are also connected to the communication bus 506.

The communication interface 503 may be an interface of a communication module, such as an interface of a GSM module. The communication interface 503 may be configured to obtain a power-on request sent by the a device to the target device, and the communication interface 503 is further configured to send a control command to the C device.

In the embodiment of the present application, the processor 501 may be a Central Processing Unit (CPU), an application-specific integrated circuit (ASIC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic devices.

In one possible implementation, the memory 502 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created during use of the computer, such as user data, user access data, audio data, and the like.

Further, the memory 502 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device or other volatile solid state storage device.

The processor 501 may call a program stored in the memory 502, and in particular, the processor 501 may execute the power management method shown in the embodiment of fig. 2 above.

The memory 502 is used for storing one or more programs, the program may include program codes including computer operation instructions, and in the embodiment of the present application, the memory 502 stores at least the program for implementing the following functions:

after the power-saving operation is performed, the target device is turned on.

The present application may further include an input unit 505, and the input unit 505 may include at least one of a touch sensing unit that senses a touch event on the touch display panel, a keyboard, a mouse, a camera, a microphone, and the like.

The output unit 504 may include: at least one of a display, a speaker, a vibration mechanism, a light, and the like. The display may comprise a display panel, such as a touch display panel or the like. In one possible case, the Display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. The vibration mechanism may displace the electronic device 500 during operation, and in one possible implementation, the vibration mechanism includes a motor and an eccentric vibrator, and the motor drives the eccentric vibrator to rotate so as to generate vibration. The brightness and/or color of the lamp can be adjusted, in a possible implementation manner, different information can be embodied through at least one of the on-off, brightness and color of the lamp, for example, the alarm information can be embodied through red light emitted by the lamp.

Of course, the structure of the electronic device 500 shown in fig. 5 does not constitute a limitation of the electronic device in the embodiment of the present application, and in practical applications, the electronic device may include more or less components than those shown in fig. 5, or some components may be combined.

The present application provides a computer readable medium, on which a computer program is stored, wherein the program, when executed by a processor, implements the power management method described in the above method embodiments.

The embodiment of the present application provides a processor, where the processor is configured to execute a program, where the program implements the power management method described in the above method embodiments when running.

The present application also provides a computer program product which, when executed on a data processing apparatus, causes the data processing apparatus to implement the power management method described in the above method embodiments.

In addition, the electronic device, the processor, the computer-readable medium, or the computer program product provided in the foregoing embodiments of the present application may be all used for executing the corresponding method provided above, and therefore, the beneficial effects achieved by the electronic device, the processor, the computer-readable medium, or the computer program product may refer to the beneficial effects in the corresponding method provided above, and are not described herein again.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.

Computer-readable media, which include both non-transitory and non-transitory, removable and non-removable media, may implement the information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The above description is only for the purpose of illustrating the preferred embodiments of the present application and the technical principles applied, and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. The scope of the invention according to the present application is not limited to the specific combinations of the above-described features, and may also cover other embodiments in which the above-described features or their equivalents are arbitrarily combined without departing from the spirit of the invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A power management method is applied to an electronic lock, the electronic lock comprises a controller and at least partial devices in the electronic lock, and the method is characterized by comprising the following steps:

before a target device is started, a controller in the electronic lock estimates the power supply current of a power supply under the starting condition of the target device, wherein the power supply supplies power to at least partial devices, and the at least partial devices comprise the target device;

after the energy-saving operation is executed, starting the target device;

the estimating of the supply current of the power supply with the target device turned on includes:

obtaining the power supply current of the power supply when the target device is started based on the current power supply current of the power supply and the power supply current needing to be increased;

the current supply current detection process of the power supply comprises the following steps:

2. The method of claim 1, wherein determining the maximum supply current of the power supply comprises:

3. The method of claim 1, wherein the input power of the target device is greater than a predetermined threshold, and/or wherein the power source is a battery.

4. A power management device applied to an electronic lock, wherein the electronic lock comprises a controller and at least partial devices in the electronic lock, and the power management device comprises: a current estimation unit, an energy-saving operation unit and a device start-up unit,

the current estimation unit is configured to perform: before a target device is started, a controller in the electronic lock estimates the power supply current of a power supply under the starting condition of the target device, wherein the power supply supplies power to at least partial devices, and the at least partial devices comprise the target device;

the energy-saving operation unit is configured to perform: the controller in the electronic lock executes a power saving operation in a case where the supply current estimated by the current estimation unit exceeds a maximum supply current of the power supply, the power saving operation including at least one of:

the device turn-on unit configured to perform: after the controller in the electronic lock executes the energy-saving operation, starting the target device;

5. A power management circuit for use with an electronic lock, the electronic lock comprising: a controller and at least some devices in the electronic lock, the at least some devices including a target device, the controller being electrically connected with the at least some devices;

the controller starts the target device after executing the energy-saving operation;

the power management circuit further comprises: the input end of the current detection circuit is electrically connected with the output end of the power supply so as to collect the power supply current of the power supply, and the output end of the current detection circuit is electrically connected with the controller;

when the power parameters required by the operation of the target device are stored, the controller estimates the power supply current required to be increased by the power supply after the target device is started according to the power parameters; the controller obtains the power supply current of the power supply when the target device is started based on the current power supply current of the power supply and the power supply current needing to be increased, which are acquired by the current detection circuit;

6. The power management circuit of claim 5, further comprising: the temperature sensor is arranged at a position capable of detecting the temperature of the power supply, and the temperature sensor is electrically connected with the controller;

7. The power management circuit of claim 5, wherein the input power of the target device is greater than a predetermined threshold, and/or wherein the power source is a battery.