CN112491108B - Electric quantity reminding method and device, intelligent door lock and storage medium - Google Patents

Electric quantity reminding method and device, intelligent door lock and storage medium Download PDF

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Publication number
CN112491108B
CN112491108B CN202011217763.3A CN202011217763A CN112491108B CN 112491108 B CN112491108 B CN 112491108B CN 202011217763 A CN202011217763 A CN 202011217763A CN 112491108 B CN112491108 B CN 112491108B
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voltage
battery
voltages
threshold
electric quantity
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CN112491108A (en
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陈煜平
贺龙胜
覃振飞
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Shenzhen Oribo Technology Co Ltd
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Shenzhen Oribo Technology Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G01R31/387—Determining ampere-hour charge capacity or SoC
    • G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

The application discloses an electric quantity reminding method, an electric quantity reminding device, an intelligent door lock and a storage medium, wherein the electric quantity reminding method is applied to intelligent equipment and comprises the following steps: acquiring the current voltage of a battery; if the current voltage is greater than or equal to a preset voltage threshold, calculating the voltage dropping speed of the battery; if the voltage dropping speed is larger than the dropping speed threshold, outputting electric quantity prompt information used for representing that the battery is in a low-electric-quantity state. The method can effectively realize that the battery can be directly judged to be in a low-power state according to the condition that the voltage dropping speed of the battery is larger than the dropping speed threshold value, and output the power prompting information used for representing that the battery is in the low-power state, so that the current actual power of the battery can be accurately judged, and the accurate power prompting information is output.

Description

Electric quantity reminding method and device, intelligent door lock and storage medium
Technical Field
The application relates to the technical field of intelligent home, in particular to an electric quantity reminding method and device, an intelligent door lock and a storage medium.
Background
Along with the high-speed development of intelligent science and technology, intelligent home gradually goes into thousands of families. Among the plurality of intelligent household products, the intelligent door lock can bring high safety and high convenience household products for wide users, and is welcomed by wide consumers. The intelligent door lock is improved on being different from the traditional mechanical door lock, and the intelligent door lock provides an intelligent access control scheme for a user based on an intelligent door lock system. The intelligent door lock system is provided with a system power supply and electronic components, wherein the system power supply provides working voltage for the electronic components of the intelligent door lock, and the electronic components realize an intelligent access control scheme for users. Most of system power supplies are powered by adopting a battery power supply mode, however, the electric quantity of the battery is reduced along with the increase of the service time, and in order to ensure the normal operation of the intelligent door lock, the electric quantity of the battery needs to be timely reminded so that a user can process the battery.
In the traditional electric quantity reminding, the electric quantity state of the battery is judged by reading the current voltage of the battery and then according to the percentage of the current voltage to the voltage of the battery in the electric quantity saturated state and a preset percentage threshold value, and when the percentage is lower than the preset percentage threshold value, the reminding information that the battery is in the low electric quantity state is directly output. However, the discharging curves of different batteries are different, and for batteries with high energy density, although the percentage of the current voltage to the voltage of the battery in the state of charge saturation is lower than the preset percentage threshold, the current charge of the battery remains more, i.e. the battery is not in the state of low charge; for a low energy density battery, the current voltage is less than the current charge remaining, i.e., the battery is in a low state of charge, although the percentage of the current voltage to the voltage of the battery in a saturated state of charge is above a preset percentage threshold. Therefore, according to the scheme of carrying out electric quantity reminding according to the percentage of the current voltage of the battery to the voltage of the battery in the state of electric quantity saturation and the preset percentage threshold, the phenomenon of misjudgment on the residual electric quantity of the battery is caused, and the electric quantity reminding information is inaccurate.
Disclosure of Invention
In view of the above problems, the application provides an electric quantity reminding method, an electric quantity reminding device, an intelligent door lock and a storage medium, which can directly judge that a battery is in a low-electric-quantity state according to the fact that the voltage dropping speed of the battery is larger than a dropping speed threshold value and output electric quantity reminding information used for representing that the battery is in the low-electric-quantity state, and can accurately judge the current actual electric quantity of the battery, so that accurate electric quantity reminding information is output.
In a first aspect, an embodiment of the present application provides an electric quantity reminding method, which is applied to an intelligent device, where the electric quantity reminding method includes: acquiring the current voltage of a battery; if the current voltage is greater than or equal to a preset voltage threshold, calculating the voltage dropping speed of the battery; if the voltage dropping speed is larger than the dropping speed threshold, outputting electric quantity prompt information used for representing that the battery is in a low-electric-quantity state.
In a second aspect, an embodiment of the present application provides an electric quantity reminding device, which is applied to an intelligent device, where the electric quantity reminding device includes: the voltage acquisition module is used for acquiring the current voltage of the battery; the calculating module is used for calculating the voltage dropping speed of the battery when the current voltage is greater than or equal to a preset voltage threshold value; and the electric quantity output module is used for outputting electric quantity prompt information used for representing that the battery is in a low-electric-quantity state when the voltage falling speed is larger than the falling speed threshold value.
In a third aspect, an embodiment of the present application provides an intelligent door lock, including: a memory; one or more processors coupled to the memory; one or more applications, wherein the one or more applications are stored in memory and configured to be executed by the one or more processors, the one or more applications configured to perform the power alerting method as provided in the first aspect above.
In a fourth aspect, an embodiment of the present application provides a computer readable storage medium having program code stored therein, the program code being executable by a processor to perform the power reminding method as provided in the first aspect.
According to the scheme provided by the application, the intelligent device calculates the voltage dropping speed of the battery by acquiring the current voltage of the battery, if the current voltage of the battery is greater than or equal to the preset voltage threshold, and outputs the electric quantity prompt information for representing that the battery is in a low electric quantity state when the voltage dropping speed is greater than or equal to the dropping speed threshold, so that the intelligent device calculates the voltage dropping speed of the battery when the acquired current voltage of the battery is greater than or equal to the preset voltage threshold, can directly judge that the battery is in the low electric quantity state when the voltage dropping speed of the battery is greater than or equal to the dropping speed threshold, and outputs the electric quantity prompt information for representing that the battery is in the low electric quantity state, and can accurately judge the current actual electric quantity of the battery, thereby outputting more accurate electric quantity prompt information.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of an electric quantity reminding method according to an embodiment of the present application;
fig. 2 is a schematic flow chart of another method for reminding electric quantity according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an electric quantity reminding device according to an embodiment of the present application;
fig. 4 shows a block diagram of an intelligent door lock according to an embodiment of the present application;
FIG. 5 shows a schematic diagram of a computer-readable storage medium of an embodiment of the application.
Detailed Description
In order to make the present application better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In order to clearly illustrate the inventive arrangements, some terms are explained below.
Intelligent equipment: refers to any device, apparatus or machine having computing processing capabilities, such as: intelligent door locks, intelligent air conditioners, intelligent televisions, intelligent gateway equipment, intelligent switches, intelligent lamps, intelligent curtains, intelligent cameras, intelligent smoke alarms, intelligent magic mirrors, intelligent remote controllers, intelligent sockets and the like;
a battery: the device is used for storing electric energy and providing the electric energy for the intelligent equipment in a discharging mode according to the requirements;
electric quantity: the total number of electrons that can be discharged from the battery as external use, and the voltage of the battery gradually decreases as the amount of electricity passes.
Referring to fig. 1, a flowchart of an electric quantity reminding method according to an embodiment of the present application is shown, where the electric quantity reminding method is used for calculating a voltage dropping speed of a battery when an obtained current voltage of the battery is greater than or equal to a preset voltage threshold, directly determining that the battery is in a low electric quantity state when the voltage dropping speed of the battery is greater than the dropping speed threshold, and outputting electric quantity reminding information for representing that the battery is in the low electric quantity state, so that the current actual electric quantity of the battery can be accurately determined, and accurate electric quantity reminding information can be output. In a specific embodiment, the electric quantity reminding method is applied to the intelligent device, and the electric quantity reminding method can include the following steps:
Step S110: the current voltage of the battery is obtained.
In the embodiment of the application, before the intelligent device outputs the electric quantity prompt information, the current voltage of the battery can be acquired through the voltage acquisition module. The voltage acquisition module may be disposed outside the intelligent device, or may be disposed inside the intelligent device or be a component of the intelligent device, which is not limited herein.
In some embodiments, the voltage acquisition module may be disposed outside the intelligent device, and in order to acquire the current voltage of the battery, the intelligent device may send a voltage acquisition request to the voltage acquisition module, where the voltage acquisition module detects the current voltage of the battery in response to the received voltage acquisition request, and returns the detected current voltage to the intelligent device. The voltage acquisition request is used for indicating the voltage acquisition module to detect the voltage of the battery.
In some embodiments, the voltage acquisition module may be disposed inside the smart device or be a component of the smart device, for example, the voltage acquisition module may include a voltage sensor, where the voltage sensor is used to detect the voltage of the battery in real time, and the smart device may read the voltage data currently detected by the voltage sensor, that is, the current voltage of the battery. Wherein the voltage sensor may comprise: voltage transformer, hall voltage sensor, optical fiber voltage sensor, etc.
Step S120: if the current voltage is greater than or equal to the preset voltage threshold, the voltage dropping speed of the battery is calculated.
In the embodiment of the application, after the intelligent device acquires the current voltage of the battery, the intelligent device can determine whether the current voltage is smaller than the preset voltage threshold according to the acquired current voltage of the battery, and if the current voltage is larger than or equal to the preset voltage threshold, the voltage dropping speed of the battery is calculated. The preset voltage threshold may be a voltage value range, or a specific voltage value, or a preset percentage voltage value of a voltage corresponding to the full battery state, which is not limited herein.
In some embodiments, the preset voltage threshold may be a voltage value range, and if the current voltage is greater than or equal to a lower limit value of the voltage value range, determining that the current voltage is greater than or equal to the preset voltage threshold, and calculating a voltage drop rate of the battery; if the current voltage is smaller than the lower limit value of the voltage numerical range, determining that the current voltage is smaller than a preset voltage threshold value. For example, when the preset voltage threshold is [1.5 volts (V), 3 volts (V) ], if the current voltage is 1.5V, determining that the current voltage is greater than or equal to the preset voltage threshold, calculating the voltage dropping speed of the battery, and if the current voltage is 1.2V, determining that the current voltage is less than the preset voltage threshold; when the preset voltage threshold is [9V-12V ], if the current voltage is 10V, determining that the current voltage is larger than or equal to the preset voltage threshold, calculating the voltage dropping speed of the battery, and if the current voltage is 8.9V, determining that the current voltage is smaller than the preset voltage threshold. The preset voltage threshold may be [3V-5V ], or [24V-28V ], which is not limited herein.
In some embodiments, the preset voltage threshold may be a specific voltage value, and if the current voltage is greater than or equal to the specific voltage value, determining that the current voltage is greater than or equal to the preset voltage threshold, and calculating the voltage dropping speed of the battery; and if the current voltage is smaller than the specific voltage value, determining that the current voltage is smaller than a preset voltage threshold value. For example, when the preset voltage threshold is 9V, if the current voltage is 9V, determining that the current voltage is greater than or equal to the preset voltage threshold, calculating the voltage dropping speed of the battery, and if the current voltage is 8V, determining that the current voltage is less than the preset voltage threshold; when the preset voltage threshold is 15V, if the current voltage is 15.5V, determining that the current voltage is greater than or equal to the preset voltage threshold, calculating the voltage dropping speed of the battery, and if the current voltage is 10V, determining that the current voltage is less than the preset voltage threshold. The preset voltage threshold may be 5V, or may be 50V, which is not limited herein.
In some embodiments, the preset voltage threshold may be a preset percentage voltage value of a voltage corresponding to the full battery state, and if the current voltage is greater than or equal to the preset percentage voltage value, determining that the current voltage is greater than or equal to the preset voltage threshold, and calculating a voltage dropping speed of the battery; and if the current voltage is smaller than the preset percentage voltage value, determining that the current voltage is smaller than a preset voltage threshold value. For example, the preset voltage threshold is a voltage value of 65% of the voltage corresponding to the full battery state, and the voltage corresponding to the full battery state is 12V, the preset voltage threshold is 7.8V, if the current voltage is 8V, the current voltage is determined to be greater than or equal to the preset voltage threshold, the voltage dropping speed of the battery is calculated, and if the current voltage is 7.5V, the current voltage is determined to be less than the preset voltage threshold; the preset voltage threshold is a voltage value of 30% of the voltage corresponding to the full battery state, the voltage corresponding to the full battery state is 24V, the preset voltage threshold is 7.2V, if the current voltage is 15V, the current voltage is determined to be greater than or equal to the preset voltage threshold, the voltage dropping speed of the battery is calculated, and if the current voltage is 5V, the current voltage is determined to be less than the preset voltage threshold. Wherein, the specific value of the preset percentage can be 10 percent, 20 percent and the like; the voltage corresponding to the full-charge state of the battery can be 36V, 48V and the like; and are not limited herein. Based on this, in some embodiments, the power alert method may further include a step of determining a preset voltage threshold, for example, including the steps of: when the first power supply of the battery is detected, the initial voltage of the battery is obtained, and a preset voltage threshold is determined according to the initial voltage, wherein the ratio of the preset voltage threshold to the initial voltage meets the preset ratio. Further, the initial voltage may represent a voltage corresponding to the full battery state, and the preset ratio is the preset percentage, which is not described in the specification. Therefore, the preset voltage threshold values of the batteries of various types can be accurately determined, if the types of the intelligent equipment are possibly different in some practical application scenes, the types or the required voltages of the batteries are also possibly different, based on the steps, the method of the embodiment can determine the practical preset voltage threshold values based on the batteries of different voltages, and then judge the electric quantity state of the batteries based on the practical preset voltage threshold values, so that the accuracy of the output electric quantity prompt information can be improved.
Step S130: if the voltage dropping speed is larger than the dropping speed threshold, outputting electric quantity prompt information used for representing that the battery is in a low-electric-quantity state.
In the embodiment of the application, after calculating the voltage dropping speed of the battery, the intelligent device can determine whether the voltage dropping speed is greater than the dropping speed threshold value and output prompt information according to the determination result. The prompt information comprises electric quantity information of the battery.
In some implementations, the alert information may include a power alert information that characterizes the battery as being in a low state of charge. When the intelligent device determines that the voltage falling speed is greater than the falling speed threshold, the intelligent device can output electric quantity prompt information used for representing that the battery is in a low-electric-quantity state so as to remind a user of processing the battery.
In some implementations, the alert information may include a power alert information that characterizes the battery as not being in a low state of charge. When the intelligent device determines that the voltage falling speed is less than or equal to the falling speed threshold, the intelligent device can output electric quantity prompt information or not output prompt information for representing that the battery is not in a low-electric-quantity state.
According to the scheme provided by the application, the intelligent device calculates the voltage dropping speed of the battery by acquiring the current voltage of the battery, if the current voltage of the battery is greater than or equal to the preset voltage threshold, and outputs the electric quantity prompt information for representing that the battery is in a low electric quantity state when the voltage dropping speed is greater than or equal to the dropping speed threshold, so that the intelligent device calculates the voltage dropping speed of the battery when the acquired current voltage of the battery is greater than or equal to the preset voltage threshold, can directly judge that the battery is in the low electric quantity state according to the fact that the voltage dropping speed of the battery is greater than or equal to the dropping speed threshold, and outputs the electric quantity prompt information for representing that the battery is in the low electric quantity state, and can accurately judge the current actual electric quantity of the battery, so as to output more accurate electric quantity prompt information.
Referring to fig. 2, a flowchart of another power reminding method according to an embodiment of the present application is shown, where the power reminding method is applied to an intelligent device, and the power reminding method may include the following steps:
step S210: the current voltage of the battery is obtained.
Step S220: and judging whether the current voltage is smaller than a preset voltage threshold value.
In the embodiment of the present application, the step S210 and the step S220 may refer to the content of the corresponding steps in the foregoing embodiment, which is not described herein again.
In some embodiments, if the smart device determines that the current voltage is greater than or equal to the preset voltage threshold, step S230 is performed. In some embodiments, if the smart device determines that the current voltage is not greater than the preset voltage threshold, step S260 is performed.
Step S230: the voltage drop rate of the battery is calculated.
In the embodiment of the application, if the intelligent device determines that the current voltage is greater than or equal to the preset voltage threshold, the intelligent device can acquire a plurality of historical voltages through the voltage acquisition module, wherein the historical voltages are voltages acquired in historical time, the plurality of historical voltages are respectively acquired based on voltage acquisition operations in different times, and then the voltage dropping speed of the battery is calculated according to the plurality of historical voltages and the current voltage. The voltage acquisition module may be disposed outside the smart device, or may be disposed inside the smart device or be a component of the smart device, which is not limited herein.
The historical voltage may be a plurality of historical voltages that the smart device has acquired before the current time, e.g., in some embodiments, the historical voltage may be a plurality of historical voltages that the smart door lock has acquired when it has been triggered/activated a plurality of times historically, where the step of acquiring the historical voltage may include: when the intelligent door lock is awakened from the sleep mode, the intelligent door lock can read the voltage of the battery and store the voltage to a storage module of the intelligent door lock, wherein the sleep mode is used for indicating that the intelligent door lock is in a standby state of a power saving mode, and awakening is used for indicating that the intelligent door lock is in a reaction of recovering to a normal working mode; as another example, in other embodiments, the historical voltage may be a plurality of historical voltages acquired by the smart door lock at a plurality of preset times (for example, a fixed time point of day, such as 7:00, etc.), where the step of acquiring the historical voltage may include: when the current time acquired by the intelligent door lock is a preset time point, the intelligent door lock can read the voltage of the battery and store the voltage to a storage module of the intelligent door lock; in other embodiments, the historical voltage may be a plurality of historical voltages obtained by the intelligent door lock at a preset interval in a past period of time, and will not be described in detail herein.
In some embodiments, the voltage acquisition module may be disposed outside the intelligent device, the intelligent device may send a historical voltage acquisition request to the voltage acquisition module, the voltage acquisition module returns a plurality of stored historical voltage data detected for the battery to the intelligent device in response to the received historical voltage acquisition request, and then calculates a voltage drop rate of the battery according to the plurality of historical voltages and the current voltage. The plurality of historical voltage acquisition requests are used for instructing the voltage acquisition module to send the stored plurality of historical voltages detected by the battery to the intelligent device. The voltage acquisition module may also be disposed in the intelligent device or be a component of the intelligent device, for example, the voltage acquisition module may include a voltage sensor, where the voltage sensor is configured to detect a voltage of the battery, and the intelligent device may read a plurality of historical voltage data stored in the voltage sensor, and then calculate a voltage drop speed of the battery according to the plurality of historical voltages and the current voltage.
As an embodiment, the smart device may calculate the voltage drop rate D of the battery according to the following formula from a plurality of historical voltages and current voltages:
Wherein,,
d is the voltage drop rate of the battery;
i is the number of voltages;
the plurality of historical voltages are sequentially acquired voltages, U 1 、U 2 、…、U i-1 Voltages obtained from 1 st to i-1 st times, respectively;
U i is the current voltage.
For example, the preset voltage threshold may be U 0 =6v, the current voltage obtained by the smart device may be U 10 =9v, then the smart device determines the current voltage U 10 > preset voltage threshold U 0 The plurality of historical voltages acquired by the intelligent device may be respectively: u (U) 1 ＝48V、U 2 ＝47V、U 3 ＝45V、U 4 ＝43V、U 5 ＝40V、U 6 ＝36V、U 7 ＝30V、U 8 ＝22V、U 9 =12v, the smart device may calculate, according to the acquired plurality of historical voltages and the current voltage, a voltage drop rate of the battery as:the current voltage can be 12V, 15V, 36V and the like; the plurality of historical voltages may also be: u (U) 1 ＝24V、U 2 ＝22V、U 3 ＝20V、U 4 =16v, the plurality of history voltages may also be: u (U) 1 ＝36V、U 2 ＝33V、U 3 ＝30V、U 4 ＝24V、U 5 =18v, etc.; the specific values of the present voltage, the number of the plurality of historical voltages, and the specific values of the plurality of historical voltages are not limited herein.
Step S240: and judging whether the voltage falling speed is larger than a falling speed threshold value or not.
In some embodiments, if the smart device determines that the voltage drop rate is greater than the drop rate threshold, step S250 is performed. In some embodiments, if the smart device determines that the voltage drop rate is not greater than the drop rate threshold, step S280 is performed.
Step S250: and outputting electric quantity prompt information for representing that the battery is in a low-electric-quantity state.
In the embodiment of the present application, step S250 may refer to the content of the corresponding steps in the foregoing embodiment, which is not described herein.
In some embodiments, the prompt information may include a remaining operation duration, after calculating a voltage drop speed of the battery, the intelligent device may determine whether a circuit in which the battery is located is turned on, and when the intelligent device determines that the circuit in which the battery is located is turned on, the intelligent device may obtain a current of the circuit through the current obtaining module, so as to determine the remaining operation duration of the battery according to the current and the current voltage, and then determine the remaining operation duration of the battery according to the current and the current voltage. The current obtaining module may be disposed outside the intelligent device, or may be disposed inside the intelligent device or be a component of the intelligent device, which is not limited herein.
In some embodiments, in order to determine the remaining operation duration of the battery, the smart device may determine the current power of the battery according to the current voltage and the capacitance of the battery, and then determine the remaining operation duration of the battery according to the current power and the current. It can be appreciated that the smart device may calculate, according to a first formula, a current power Q of the battery according to the current voltage U and the capacitance C of the battery, where the first formula is: q=cu, and then calculating the remaining operating time T of the battery according to a second formula according to the current power Q and the current I, where the second formula is: t=q/I.
In some embodiments, in order to determine the remaining operation duration of the battery, the intelligent device may also search a preset remaining operation duration table according to the current and the current voltage to obtain the remaining operation duration of the battery, where the remaining operation duration table is used to characterize the correspondence between the current and the voltage and the remaining operation duration.
For example, the correspondence between the current and the voltage and the remaining operation time may be shown in table 1, where the time periods in table 1 are different currents and the remaining operation time periods corresponding to different voltages, and the intelligent device may obtain the remaining operation time periods corresponding to the current and the current voltage according to the correspondence table.
TABLE 1
The correspondence between the current and the voltage and the remaining operation time period is not limited to those shown in table 1.
In some embodiments, the smart device may determine whether the circuit in which the battery is located is on by detecting whether current is present in the circuit in which the battery is located; when the intelligent device detects that the current exists in the circuit where the battery is located, the circuit where the battery is located can be determined to be on; when the intelligent device does not detect that the current exists in the circuit where the battery exists, the circuit where the battery exists can be determined to be not connected.
As an implementation manner, the current acquisition module is disposed outside the intelligent device, and in order to acquire the current of the circuit where the battery is located, the intelligent device may send a current acquisition request to the current acquisition module, and the current acquisition module detects the current of the circuit where the battery is located in response to the received current acquisition request, and returns the detected current to the intelligent device. The current acquisition request is used for indicating the current acquisition module to detect the current of the circuit where the battery is located.
As another embodiment, the current obtaining module may be disposed in the intelligent device or be a component of the intelligent device, for example, the current obtaining module may include a current sensor, where the current sensor is used to detect a current of a circuit where the battery is located in real time, and in order to obtain the current of the circuit where the battery is located, the intelligent device may read current data detected by the current sensor when determining that the circuit where the battery is located is on, that is, the current of the circuit where the battery is located. Wherein the current sensor may include: current divider, electromagnetic current transformer, electronic current transformer, etc.
In some embodiments, after outputting the prompt information according to the voltage drop speed and the drop speed threshold, the smart device may send the prompt information to a client associated with the smart device to prompt the user to process the battery. Wherein, the client may include: smart phones, tablet computers, etc.
Step S260: the ambient temperature of the environment in which the intelligent device is located is obtained.
In the embodiment of the application, after the current voltage of the battery is obtained, the intelligent device can determine whether the current voltage is smaller than the preset voltage threshold, and if the intelligent device determines that the current voltage is smaller than the preset voltage threshold, the temperature obtaining module can obtain the ambient temperature of the environment where the intelligent device is located, so that the prompt information is output according to the ambient temperature and the preset temperature threshold, inaccurate electric quantity state of the battery caused by the influence of the ambient temperature on the activity of chemical components in the battery can be avoided, and the accuracy of the output electric quantity prompt information is improved. The temperature obtaining module may be disposed outside the intelligent device, or may be disposed inside the intelligent device or be a component of the intelligent device, which is not limited herein.
In some embodiments, the temperature acquisition module may be disposed outside the smart device, for example, the temperature acquisition module may be a temperature sensor such as a thermometer/a thermometer, and in order to acquire an ambient temperature of an environment where the smart device is located, the smart device may send a temperature acquisition request to the temperature acquisition module, and the temperature acquisition module detects a temperature of the environment where the smart device is located in response to the received temperature acquisition request, and returns the detected ambient temperature to the smart device. The temperature acquisition request is used for indicating the temperature acquisition module to detect the temperature of the environment where the intelligent equipment is located.
In some embodiments, the temperature acquisition module may be disposed inside the smart device or be an integral part of the smart device, for example, the temperature acquisition module may include a temperature sensor, where the temperature sensor is used to detect the temperature of the environment where the smart device is located in real time, and the smart device may read temperature data detected by the temperature sensor in real time. Wherein the temperature sensor may include: a contact temperature sensor, a non-contact temperature sensor, and the like.
In some embodiments, the temperature acquisition module may be disposed inside or be an integral part of the smart device, and the temperature acquisition module is configured to acquire, through a weather website or a service provider that provides a weather data interface, an ambient temperature of an environment in which the smart device is located, for example, through a client, from a national weather website, an ink weather service provider, and a weather service provider, etc. The intelligent device can acquire the environmental temperature of the environment in which the intelligent device is located through the environmental temperature acquisition module.
Step S270: and judging whether the ambient temperature is less than a preset temperature threshold.
In the embodiment of the application, after the intelligent device acquires the environmental temperature of the environment in which the intelligent device is located, the intelligent device can compare the environmental temperature with the preset temperature threshold value to determine whether the environmental temperature is smaller than the preset temperature threshold value. The temperature threshold may be a temperature range value, when the ambient temperature is less than a lower limit value of the temperature range value, the ambient temperature is determined to be less than a preset temperature threshold, and when the ambient temperature is greater than or equal to the lower limit value of the temperature range value, the ambient temperature is determined to be greater than or equal to the preset temperature threshold; the temperature threshold may be a specific temperature value, when the ambient temperature is less than the specific temperature value, it is determined that the ambient temperature is less than a preset temperature threshold, and when the ambient temperature is greater than or equal to the specific temperature value, it is determined that the ambient temperature is greater than or equal to the preset temperature threshold; and are not limited herein. For example, the temperature threshold may be 0-2 degrees celsius (°c), when the ambient temperature is-1 ℃, the ambient temperature is determined to be less than a preset temperature threshold, when the ambient temperature is 1 ℃, the ambient temperature is determined to be greater than or equal to the preset temperature threshold; the temperature threshold may also be 5 ℃, when the ambient temperature is 4 ℃, it is determined that the ambient temperature is less than a preset temperature threshold, and when the ambient temperature is 10 ℃, it is determined that the ambient temperature is greater than or equal to the preset temperature threshold.
In some embodiments, if the ambient temperature is less than the preset temperature threshold, step S250 may be performed. In some embodiments, if the ambient temperature is not less than the preset temperature threshold, step S230 may be performed.
In some embodiments, if the ambient temperature is less than the preset temperature threshold, indicating that the current ambient temperature is low, the intelligent device executes step S250 to output the electric quantity prompt information for indicating that the battery is in a low-power state, so as to output the low-power prompt information according to the ambient temperature and the current voltage, and improve the accuracy of the output low-power prompt information; if the ambient temperature is not less than the preset temperature threshold, the intelligent device indicates that the current ambient temperature is not low, and then executes step S230 to calculate the voltage dropping speed of the battery, so as to output the electric quantity prompt information according to the voltage dropping speed and the dropping speed threshold of the battery, thereby realizing the output of the electric quantity prompt information according to the ambient temperature, the voltage dropping speed and the dropping speed threshold, and further improving the accuracy of the output electric quantity prompt information.
As an embodiment, if the smart device determines that the ambient temperature is greater than or equal to the preset temperature threshold, the smart device performs step S230 and step S240, and when the voltage drop speed is greater than the drop speed threshold, the smart device performs step S250.
As an embodiment, if the smart device determines that the temperature is greater than or equal to the preset temperature threshold, the smart device performs step S230 and step S240, and when the voltage drop speed is less than or equal to the drop speed threshold, the smart device performs step S280.
Step S280: it is determined whether the number of the plurality of historical voltages is greater than a number threshold.
In some embodiments, if the smart device determines that the number of the plurality of historical voltages is greater than the number threshold, step S281 is performed; in some embodiments, if the smart device determines that the number of the plurality of historical voltages is less than or equal to the number threshold, step S282 is performed.
Step S281: the current voltage is updated to a first voltage among a plurality of history voltages, and step S210 is performed.
In the embodiment of the application, if the intelligent device judges that the number of the plurality of historical voltages is greater than the number threshold, the intelligent device indicates that the number of the plurality of historical voltages acquired by the intelligent device is greater than the number of the historical voltages required by voltage drop speed calculation, namely the voltage drop speed cannot be calculated according to the acquired plurality of historical voltages, the intelligent device can update the acquired current voltage to the first voltage in the plurality of historical voltages so as to update the acquired historical voltages, thereby updating the calculated voltage drop speed, further realizing the real-time update of the voltage drop speed and improving the accuracy of electric quantity prompt information.
Step S282: the next voltage is acquired and updated to the current voltage among the plurality of history voltages, and step S210 is performed.
In the embodiment of the application, if the intelligent device judges that the number of the plurality of historical voltages is smaller than or equal to the number threshold, the intelligent device indicates that the number of the plurality of historical voltages acquired by the intelligent device is smaller than or equal to the number of the historical voltages required by voltage drop speed calculation, namely, the voltage drop speed can be calculated according to the acquired plurality of historical voltages, the intelligent device can acquire the next voltage and update the acquired next voltage into the current voltage in the plurality of historical voltages so as to update the acquired historical voltages, thereby updating the calculated voltage drop speed, further realizing the real-time update of the voltage drop speed and improving the accuracy of electric quantity prompt information.
According to the scheme provided by the application, the intelligent device calculates the voltage dropping speed of the battery by acquiring the current voltage of the battery when the current voltage of the battery is greater than or equal to the preset voltage threshold value, and outputs the electric quantity prompt information for representing that the battery is in a low electric quantity state when the voltage dropping speed is greater than or equal to the dropping speed threshold value, so that the intelligent device calculates the voltage dropping speed of the battery when the acquired current voltage of the battery is greater than or equal to the preset voltage threshold value, can directly judge that the battery is in the low electric quantity state when the voltage dropping speed of the battery is greater than or equal to the dropping speed threshold value, and outputs the electric quantity prompt information for representing that the battery is in the low electric quantity state, and can accurately judge the current actual electric quantity of the battery, thereby outputting accurate electric quantity prompt information.
Further, when the current voltage of the battery is judged to be smaller than the preset voltage threshold, the intelligent device can acquire the ambient temperature of the environment where the intelligent device is located, and output prompt information according to the ambient temperature and the preset temperature threshold, so that inaccurate electric quantity state caused by influence of the ambient temperature on the activity of chemical components in the battery can be avoided, and the accuracy of the output electric quantity prompt information is improved.
Further, before the intelligent device outputs the electric quantity prompt information used for representing that the battery is in a low-power state according to the voltage falling speed being greater than the preset falling speed threshold, and when a circuit in which the battery is located is on, the intelligent device can acquire the current of the circuit, then determine the remaining working time of the battery according to the current and the current voltage, and output the remaining working time of the battery, so that a user can timely process the battery according to the remaining working time of the battery, the service efficiency of the battery is improved, and the user experience is further improved.
Referring to fig. 3, a schematic structural diagram of an electric quantity reminding device according to an embodiment of the application is shown, in which an electric quantity reminding device 300 is applied to an intelligent device, the electric quantity reminding device 300 may include: a voltage acquisition module 310, a calculation module 320, and a power output module 330.
The voltage acquisition module 310 is configured to acquire a current voltage of the battery;
the calculating module 320 is configured to calculate a voltage drop rate of the battery when the current voltage is greater than or equal to a preset voltage threshold;
the power output module 330 is configured to output power prompt information for indicating that the battery is in a low power state when the voltage drop speed is greater than the drop speed threshold.
In some embodiments, the computing module 320 may include an acquisition unit and a first computing unit.
The acquisition unit is used for acquiring a plurality of historical voltages when the current voltage is greater than or equal to a preset voltage threshold, wherein the historical voltages are voltages acquired in historical time, and the plurality of historical voltages are respectively acquired based on voltage acquisition operations at different times;
the first calculation unit is used for calculating the voltage dropping speed of the battery according to the plurality of historical voltages and the current voltage.
As an embodiment, the first computing unit may comprise a computing subunit.
The calculating subunit is configured to calculate, according to the plurality of historical voltages and the current voltage, a voltage drop speed D of the battery according to the following formula:
wherein,,
d is the voltage drop rate of the battery;
i is the number of voltages;
the plurality of historical voltages are sequentially acquired voltages, U 1 、U 2 、…、U i Voltages obtained from 1 st to i-1 st times, respectively;
U i is the current voltage.
In some embodiments, the electric quantity reminding device 300 may further include a temperature acquisition module and a prompt information output module
The temperature acquisition module is used for acquiring the environment temperature of the environment where the intelligent equipment is located when the current voltage is smaller than a preset voltage threshold value;
the prompt information output module is used for outputting prompt information according to the ambient temperature and a preset temperature threshold value.
As an embodiment, the prompt information output module may include a first power output unit.
The first electric quantity output unit is used for outputting electric quantity prompt information used for representing that the battery is in a low electric quantity state when the ambient temperature is smaller than a temperature threshold value.
As another embodiment, the prompt information output module may further include a second calculation unit and a second power output unit.
The second calculating unit is used for calculating the voltage dropping speed of the battery when the ambient temperature is greater than or equal to the temperature threshold value;
the second electric quantity output unit is used for outputting electric quantity prompt information used for representing that the battery is in a low electric quantity state when the voltage falling speed is larger than the falling speed threshold value.
In some embodiments, the power reminder device 300 can also include a sending module.
The sending module is configured to send, when the voltage dropping speed of the power output module 330 is greater than the dropping speed threshold, a reminder to a client associated with the smart device after outputting power prompt information indicating that the battery is in a low power state, where the reminder is configured to remind a user to process the battery according to the power prompt information.
According to the scheme provided by the application, the intelligent device calculates the voltage dropping speed of the battery by acquiring the current voltage of the battery, if the current voltage of the battery is greater than or equal to the preset voltage threshold, and outputs the electric quantity prompt information for representing that the battery is in a low electric quantity state when the voltage dropping speed is greater than or equal to the dropping speed threshold, so that the voltage dropping speed of the battery is calculated when the acquired current voltage of the battery is greater than or equal to the preset voltage threshold, and the battery can be directly judged to be in the low electric quantity state when the voltage dropping speed of the battery is greater than or equal to the dropping speed threshold, and the electric quantity prompt information for representing that the battery is in the low electric quantity state is output, so that the current actual electric quantity of the battery can be accurately judged, and the accurate electric quantity prompt information is output.
Referring now to fig. 4, a functional block diagram of a smart door lock 400 according to an embodiment of the present application is shown, where the smart door lock 400 includes a memory 410, a processor 420, and a computer program stored in the memory 410 and executable on the processor 420, where the processor 420 implements the methods described in the foregoing method embodiments when executing the computer program.
Processor 420 may include one or more processing cores. The processor 420 connects various portions of the entire intelligent door lock 400 using various interfaces and lines to perform various functions of the intelligent door lock 400 and process data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 410, and invoking data stored in the memory 410. Alternatively, the processor 420 may be implemented in hardware in at least one of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor 420 may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), and a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for being responsible for rendering and drawing of display content; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor 420 and may be implemented solely by a single communication chip.
The Memory 410 may include a random access Memory (Random Access Memory, RAM) or a Read-Only Memory (Read-Only Memory). Memory 410 may be used to store instructions, programs, code sets, or instruction sets. The memory 410 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for implementing at least one function (such as obtaining a current voltage, calculating a voltage drop rate, outputting a hint information, outputting a first power hint information, obtaining a plurality of historical voltages, obtaining an ambient temperature, outputting a second power hint information, outputting a third power hint information, etc.), instructions for implementing various method embodiments described below, etc. The storage data area may also store data created by the smart door lock 400 in use (such as a current voltage, a preset voltage threshold, a voltage drop rate, a drop rate threshold, a reminder, a first power reminder, a historical voltage, an ambient temperature, a temperature threshold, a second power reminder, and a third power reminder), and so forth.
Referring now to FIG. 5, a computer readable storage medium is shown, in which a program code is stored 500, and which is adapted to be invoked by a processor to perform the method described in the foregoing method embodiments, according to one embodiment of the present application.
The computer readable storage medium 500 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read only memory), an EPROM, a hard disk, or a ROM. Optionally, the computer readable storage medium 500 comprises a non-volatile computer readable medium (non-transitory computer-readable storage medium). The computer readable storage medium 500 has storage space for program code 510 that performs any of the method steps described above. The program code can be read from or written to one or more computer program products. Program code 510 may be compressed, for example, in a suitable form.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (9)

1. An electric quantity reminding method, which is characterized by being applied to intelligent equipment, comprises the following steps:
acquiring the current voltage of a battery;
if the current voltage is greater than or equal to a preset voltage threshold, acquiring a plurality of historical voltages, wherein the historical voltages are voltages acquired in historical time, and the plurality of historical voltages are acquired based on voltage acquisition operations at different times respectively;
calculating a voltage drop rate of the battery according to a plurality of the historical voltages and the current voltage;
if the voltage drop rate is greater than
A descending speed threshold value, and electric quantity prompt information used for representing that the battery is in a low-electric quantity state is output;
if the voltage falling speed is greater than the falling speed threshold, judging whether the number of the plurality of historical voltages is greater than a number threshold;
if the number of the plurality of historical voltages is larger than the number threshold, updating the current voltage to be the first voltage in the plurality of historical voltages, and returning to the executing step to acquire the current voltage of the battery;
and if the number of the plurality of historical voltages is smaller than or equal to the number threshold, acquiring the next voltage, updating the next voltage to the current voltage in the plurality of historical voltages, and returning to the executing step to acquire the current voltage of the battery.
2. The method of claim 1, wherein said calculating a voltage drop rate of said battery from a plurality of said historical voltages and said current voltage comprises:
calculating a voltage drop rate D of the battery from the plurality of the historical voltages and the current voltage according to the following formula:
wherein,,
d is the voltage drop rate of the battery;
i is the number of voltages;
a plurality of historical voltages are sequentially acquired voltages, U 1 、U 2 、…、U i-1 Voltages obtained from 1 st to i-1 st times, respectively;
U i is the current voltage.
3. The method of claim 1, wherein after the obtaining the current voltage of the battery, the method further comprises:
if the current voltage is smaller than the preset voltage threshold, acquiring the environment temperature of the environment where the intelligent equipment is located; and
and outputting prompt information according to the ambient temperature and a preset temperature threshold.
4. The method of claim 3, wherein outputting the prompt message according to the ambient temperature and the preset temperature threshold comprises:
and when the ambient temperature is smaller than the temperature threshold, outputting electric quantity prompt information used for representing that the battery is in a low-electric-quantity state.
5. The method of claim 3, wherein outputting the prompt message according to the ambient temperature and the preset temperature threshold comprises:
calculating a voltage drop rate of the battery when the ambient temperature is greater than or equal to the temperature threshold;
and outputting electric quantity prompt information used for representing that the battery is in a low-electric-quantity state when the voltage dropping speed is larger than the dropping speed threshold value.
6. The method of any one of claims 1 to 5, wherein after outputting a power hint information indicating that the battery is in a low state of charge if the voltage drop rate is greater than the drop rate threshold, the method further comprises:
and sending reminding information to a client associated with the intelligent equipment, wherein the reminding information is used for reminding a user to process the battery according to the electric quantity reminding information.
7. An electrical quantity reminding device, characterized in that it is applied to intelligent equipment, said device comprises:
the voltage acquisition module is used for acquiring the current voltage of the battery;
the calculating module is used for calculating the voltage dropping speed of the battery when the current voltage is larger than or equal to a preset voltage threshold value; the computing module comprises an acquisition unit and a first computing unit; the acquisition unit is used for acquiring a plurality of historical voltages when the current voltage is greater than or equal to a preset voltage threshold, wherein the historical voltages are voltages acquired in historical time, and the plurality of historical voltages are acquired based on voltage acquisition operations in different times respectively; the first calculating unit is used for calculating the voltage dropping speed of the battery according to a plurality of historical voltages and the current voltage;
The electric quantity output module is used for outputting electric quantity prompt information used for representing that the battery is in a low electric quantity state when the voltage falling speed is larger than a falling speed threshold value;
the device is further used for judging whether the number of the plurality of historical voltages is larger than a number threshold value or not if the voltage falling speed is larger than the falling speed threshold value; if the number of the plurality of historical voltages is larger than the number threshold, updating the current voltage to be the first voltage in the plurality of historical voltages, and returning to the executing step to acquire the current voltage of the battery; and if the number of the plurality of historical voltages is smaller than or equal to the number threshold, acquiring the next voltage, updating the next voltage to the current voltage in the plurality of historical voltages, and returning to the executing step to acquire the current voltage of the battery.
8. An intelligent door lock, characterized by comprising:
a memory;
one or more processors coupled with the memory;
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by one or more processors, the one or more applications configured to perform the method of any of claims 1-6.
9. A computer readable storage medium having stored therein program code which is callable by a processor to perform the method of any one of claims 1 to 6.
CN202011217763.3A 2020-11-04 2020-11-04 Electric quantity reminding method and device, intelligent door lock and storage medium Active CN112491108B (en)

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