CN108767929B - Unmanned aerial vehicle battery safety processing method and device - Google Patents
Unmanned aerial vehicle battery safety processing method and device Download PDFInfo
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- CN108767929B CN108767929B CN201810725556.5A CN201810725556A CN108767929B CN 108767929 B CN108767929 B CN 108767929B CN 201810725556 A CN201810725556 A CN 201810725556A CN 108767929 B CN108767929 B CN 108767929B
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention relates to a method and a device for safely processing a battery of an unmanned aerial vehicle, wherein the method comprises the following steps: collecting electrical performance parameters of the battery, wherein the electrical performance parameters comprise a discharge current value of the battery and a voltage value of a single battery; and judging whether the battery is overdischarged or not according to the electrical property parameters, and if so, controlling the battery to be incapable of being charged and discharged. The invention can effectively avoid the safety risk of the battery caused by serious overdischarge and improve the reliability of the battery.
Description
[ technical field ] A
The invention relates to the technical field of battery management, in particular to a battery safety processing method and device for an unmanned aerial vehicle.
[ background of the invention ]
The unmanned aerial vehicle is a product with higher requirement on safety, and the battery is used as the core of the safety of the unmanned aerial vehicle and is particularly important in the safety design of the unmanned aerial vehicle. The lithium battery has the characteristics of light weight and high energy density, so that the lithium battery is widely used in the field of unmanned aerial vehicles. Lithium batteries also suffer from a number of natural drawbacks, such as: the influence of the ambient temperature is large, the requirement on charge and discharge voltage is high, and the like. The problem of overdischarge is always a common problem of lithium batteries, especially, the chemical activity in the batteries of unmanned aerial vehicles and model airplanes is high due to the high discharge rate, so that the self-discharge rate is much higher than that of common lithium batteries, and the risk of overdischarge is also higher.
Once the voltage of the lithium battery is lower than 2 volts, irreversible chemical reactions exist, which cause the problems of battery swelling, capacity reduction, internal lithium precipitation and the like, and the safety of the battery is seriously influenced. At present, aiming at the problem of overdischarge of a battery, the traditional method is to reduce power consumption or discard a prompt, however, the reduction of the power consumption cannot stop the self-power consumption of the battery, and the battery can be discharged to below 2 volts after a long enough time; the rejection prompt also does not impose restrictions on the user's reuse. Both of these approaches present certain safety risks.
[ summary of the invention ]
In order to solve the above technical problem, embodiments of the present invention provide a method and an apparatus for safely processing a battery of an unmanned aerial vehicle, which can reduce loss as much as possible.
In order to solve the above technical problems, embodiments of the present invention provide the following technical solutions:
an unmanned aerial vehicle battery safety processing method comprises the following steps:
collecting electrical performance parameters of the battery, wherein the electrical performance parameters comprise a discharge current value of the battery and a voltage value of a single battery;
judging whether the battery is over-discharged according to the electrical property parameters,
and if so, controlling the battery to be incapable of charging and discharging.
In one embodiment, before determining whether the battery is over-discharged according to the electrical property parameter, the method includes:
detecting a sleep command of a battery;
determining the battery state according to the electrical performance parameters and the detection result;
wherein the battery state includes a discharge state, a sleep state, and a standby state.
In one embodiment, the determining whether the battery is over-discharged according to the electrical property parameter includes:
and when the voltage value of the single battery is smaller than a first voltage threshold value and the duration time is longer than a first preset time, judging that the battery is over-discharged.
In one embodiment, the first voltage threshold is 2 volts, and the first predetermined time is 20 seconds.
In one embodiment, the determining the battery state according to the electrical performance parameter and the detection result includes:
comparing the discharge current value of the battery and the voltage value of the single battery with a first current threshold value and a second voltage threshold value respectively;
when the discharge current value of the battery is larger than the first current threshold value, determining that the battery state is a discharge state;
when the discharge current value of the battery is smaller than or equal to the first current threshold value and no sleep instruction of the battery is detected, determining that the battery state is a standby state;
and when the duration that the voltage value of the single battery is smaller than the second voltage threshold is longer than a second preset time or a sleep command of the battery is detected, determining that the battery state is a sleep state.
In one embodiment, when the battery state is determined to be a sleep state according to the electrical property parameter and the detection result, the method further comprises:
detecting an external wake-up instruction;
and closing a charging loop and a discharging loop of the battery when an external wake-up command is detected.
In one embodiment, the first current threshold is 30 milliamps, the second voltage threshold is 2.3 volts, and the second time threshold is 10 seconds.
In one embodiment, after the controlling the battery to be unable to be charged and discharged, the method further includes:
and sending out a scrapped battery prompt.
In order to solve the above technical problem, the embodiments of the present invention further provide the following technical solutions:
an unmanned aerial vehicle battery safety handling device, comprising:
the acquisition module is used for acquiring electrical performance parameters of the battery, wherein the electrical performance parameters comprise a discharge current value of the battery and a voltage value of a single battery;
the judging module is used for judging whether the battery is over-discharged or not according to the electrical performance parameters;
and the control module is used for controlling the battery to be incapable of charging and discharging when the judgment result of the judgment module is yes.
In one embodiment, the apparatus further comprises:
the detection module is used for detecting a sleep instruction of the battery;
the determining module is used for determining the battery state according to the electrical performance parameters and the detection result;
wherein the battery state includes a discharge state, a sleep state, and a standby state.
In one embodiment, the determining module is specifically configured to determine that the battery is overdischarged when it is determined that the voltage value of the single battery is smaller than a first voltage threshold and the duration is greater than a first preset time.
In one embodiment, the first voltage threshold is 2 volts, and the first predetermined time is 20 seconds.
In one embodiment, the determining module is specifically configured to:
comparing the discharge current value and the voltage value of the single battery with a first current threshold value and a second voltage threshold value respectively;
when the discharge current value of the battery is larger than the first current threshold value, determining that the battery state is a discharge state;
when the discharge current value of the battery is smaller than or equal to the first current threshold value and no sleep instruction of the battery is detected, determining that the battery state is a standby state;
and when the duration time that the voltage value of the single battery is smaller than the second voltage threshold value is longer than a second preset time or a sleep command of the battery is detected, determining that the battery state is a sleep state.
In one embodiment, when the battery state is determined to be the sleep state according to the electrical performance parameter and the detection result, the detection module is further configured to:
detecting an external wake-up instruction;
and when an external wake-up instruction is detected, the control module closes a charging loop and a discharging loop of the battery.
In one embodiment, the first current threshold is 30 milliamps, the second voltage threshold is 2.3 volts, and the second time threshold is 10 seconds.
In one embodiment, the device further comprises a prompt module, and the prompt module is used for sending out a scrapped battery prompt after the control module controls the battery to be incapable of being charged and discharged.
The embodiment of the invention also provides the following technical scheme:
an unmanned aerial vehicle comprises a memory and a processor, wherein the memory stores a program, and the program realizes the unmanned aerial vehicle battery safety processing method when being read and executed by the processor.
Compared with the prior art, the unmanned aerial vehicle battery safety processing method and the device thereof judge whether the battery is over-discharged or not according to the collected electrical performance parameters of the battery, and control the battery not to be charged and discharged under the condition of determining the over-discharge of the battery, so that the safety risk of the battery caused by serious over-discharge can be effectively avoided, and the reliability of the battery is improved.
[ description of the drawings ]
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
FIG. 1 is a schematic diagram of an application environment provided by an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for safely processing a battery of an unmanned aerial vehicle according to an embodiment of the present invention;
FIG. 3 is a partial flow diagram of a method for safely processing a battery of an UAV according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method for safely processing a battery of an UAV according to another embodiment of the present invention;
fig. 5 is a schematic flow chart of a method for safely processing a battery of an unmanned aerial vehicle in a specific scenario according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a safety processing device for a battery of an unmanned aerial vehicle according to an embodiment of the invention;
fig. 7 is a block diagram of a hardware structure of an unmanned aerial vehicle according to an embodiment of the present invention.
[ detailed description ] embodiments
In order to facilitate an understanding of the invention, reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. It should be noted that the steps shown in the flowchart of the figure may be performed in a computer system such as a set of computer executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Fig. 1 is a schematic diagram of an application environment provided in an embodiment of the present invention. As shown in fig. 1, the application environment includes a battery 10, a battery protection module 20, and a microprocessor 30.
The battery 10 is composed of one or more cells, and is formed by arranging a cell group in any form for providing a direct current power supply for electrical equipment such as an electric motor. The battery 10 may have a corresponding capacity, volume size, or packaging form according to the actual situation. The battery 10 can be discharged or charged under controlled conditions, simulating normal operating conditions.
The battery protection module 20 may be an integrated chip or a peripheral circuit, and calculates and determines the current electric quantity, current, voltage, and other conditions of the battery by collecting corresponding data. The battery protection module 20 may also be run with one or more suitable software programs, record data, and perform operations based on the data.
Necessary electrical connection is established between the battery protection module 20 and the battery 10, the battery protection module 20 includes a current sampling circuit, a voltage sampling circuit, a temperature sampling circuit, a battery state feedback circuit, a main loop control circuit, and the like), and the battery protection module 20 acquires and acquires data of the battery 10 through the electrical connection to determine current electric quantity, current, voltage, and other electrical performance parameters of the battery 10, determine a battery state (a discharge state, a sleep state, or a standby state), and implement related protection functions (such as short-circuit protection, overcurrent protection, overvoltage protection, and over-temperature protection).
The microprocessor 30 is connected to the battery protection module 20 in a communication manner, and the microprocessor 30 can control the on or off of the related protection function according to the related electrical performance parameters transmitted by the battery protection module 20. For example, the microprocessor 30 may send a battery sleep command to the battery protection module 20, and the microprocessor 30 may also send a discard battery prompt when the battery 10 is over-discharged. After monitoring the battery sleep command sent by the microprocessor 30, the battery protection module 20 controls the charging and discharging of the battery 10 by combining the electrical performance parameters of the battery 10, mainly by controlling the turn-off and turn-on of the switch tube on the main loop.
The first embodiment is as follows:
fig. 2 is a schematic flow chart of a method for safely processing a battery of an unmanned aerial vehicle according to an embodiment of the present invention, and the technical solution in the first embodiment is described with reference to fig. 1. As shown in fig. 2, the unmanned aerial vehicle battery safety processing method includes:
step S110: and collecting electrical performance parameters of the battery, wherein the electrical performance parameters comprise a discharge current value of the battery and a voltage value of a single battery.
In this embodiment, the "current value" appears as a single value without a positive or negative division, and the previous charging and discharging is used to indicate the direction of the current.
In this embodiment, the voltage value of a single battery refers to the voltage value of one of the batteries. The acquisition of the electrical performance parameters is typically accomplished by corresponding sampling circuitry in the battery protection module 20.
Step S120: and judging whether the battery is over-discharged or not according to the electrical performance parameters, and if so, executing the step S130.
In one embodiment, the battery protection module 20 determines that the battery 10 is overdischarged when it is determined that the voltage value of a single battery is smaller than a first voltage threshold and the duration time is longer than a first preset time according to the collected electrical performance parameters.
In one embodiment, the first voltage threshold is 2 volts and the first predetermined time is 20 seconds.
Normally, when the voltage value of the single battery is 2 volts, the voltage value belongs to a limit value, the battery is basically scrapped because the discharging is continued, and the first preset time is set to be 20 seconds so as to ensure that the voltage value of the single battery is 2 volts.
It is understood that in other embodiments, the first voltage threshold may also be other values, such as 2.1 volts, 2.2 volts, 2.3 volts, etc., and is not limited thereto. Likewise, the first preset time may also be other values, such as 19 seconds, 21 seconds, etc., and is not limited herein.
Step S130: and controlling the battery to be incapable of charging and discharging.
In one embodiment, the battery is controlled to be unable to be charged and discharged mainly by the battery protection module 20 closing the charging loop and the discharging loop, that is, controlling the switch tube on the main loop to be turned off or on.
Compared with the prior art, the unmanned aerial vehicle battery safety processing method provided by the embodiment of the invention judges whether the battery is overdischarged or not according to the acquired electrical performance parameters of the battery, and controls the battery not to be charged and discharged under the condition that the battery is determined to be overdischarged, so that the battery safety risk caused by serious overdischarge can be effectively eliminated, and the reliability of the battery is improved.
Example two:
referring to fig. 3, in an embodiment, before the step S120 in the first embodiment, the method further includes:
step S112: a sleep command of the battery is detected.
The battery sleep command is typically issued by the microprocessor 30. The microprocessor 30 may automatically issue a sleep instruction when the value of the electrical property parameter of the battery reaches a certain threshold value or when the time during which the value of the electrical property parameter of the battery reaches the certain threshold value satisfies a preset time value; the microprocessor 30 may also issue a sleep command according to an external operation command of a user, which is not limited herein.
Step S114: and determining the battery state according to the electrical performance parameters and the detection result.
In one embodiment, the battery protection module 20 may first determine the battery status according to the electrical performance parameters and the detection results. The battery state generally includes a discharge state, a charge state, a sleep state, and a standby state. In this embodiment, the battery state includes a discharge state, a sleep state, and a standby state, i.e., the determined battery state may be the discharge state, the sleep state, or the standby state. Because the charging state does not have the over-discharge condition, the technical scheme of the embodiment is not needed.
Specifically, in one embodiment, it is desirable to compare the discharge current value of the battery to a first current threshold value, which is 30 milliamps, and the single battery voltage value to the second voltage threshold value, which is 2.3 volts.
Since the discharge current value is less than 30 milliamperes, it may be disturbed by some reverse current, not necessarily true discharge, and some disturbance situations can be filtered out by this step. It is understood that in other embodiments, the first current threshold may also be floated at about 30 milliamperes, such as 29 milliamperes, 31 milliamperes, etc., and is not limited thereto.
In this embodiment, the second voltage threshold is greater than the first voltage threshold because the first voltage threshold is a condition for discarding the battery, and the second voltage threshold is mainly for making the battery enter a sleep state with low power consumption. It is understood that in other embodiments, the second voltage threshold is not limited to 2.3 volts, and is not strictly limited thereto.
And when the discharge current value of the battery is larger than the first current threshold value, determining that the battery state is a discharge state.
In one embodiment, the battery state may be determined to be a discharged state when a discharge current value of the battery is greater than 30 milliamperes.
And when the discharge current value of the battery is smaller than or equal to the first current threshold value and no sleep instruction of the battery is detected, determining that the battery state is a standby state.
In one embodiment, the battery state is determined to be a standby state when the discharge current value of the battery is less than or equal to 30 milliamperes and the battery is not dormant.
And when the duration time that the voltage value of the single battery is smaller than the second voltage threshold value is longer than a second preset time or a sleep command of the battery is detected, determining that the battery state is a sleep state.
In one embodiment, the second predetermined time is 10 seconds. And when the duration time of the voltage value of the single battery is less than 2.3 volts is more than 10 seconds or a sleep command of the battery is detected, determining that the battery state is a sleep state.
In one embodiment, when the battery state is a sleep state, the external wake-up command is detected in real time, and when the external wake-up command exists, the charging loop and the discharging loop are closed firstly. So as to prevent the charger from charging the battery to cause the voltage of the battery to rise and influence the judgment.
Example three:
referring to fig. 4, in an embodiment, on the basis of the first embodiment, after the step S130, the method further includes:
s140: and sending out a scrapped battery prompt.
In one embodiment, the end of life battery indicator may be a light display, a voice indication, a combination thereof, or the like, without limitation.
As shown in fig. 5, the battery state is determined after the battery is initialized, and in this embodiment, it is required to determine whether the battery state is a discharge state, a sleep state, or a standby state. During the determination process, the corresponding sampling circuit in the battery protection module collects the electrical performance parameters of the battery, wherein the electrical performance parameters comprise the discharge current value of the battery and the voltage value of a single battery.
(1) If the discharging current is detected and the discharging current value is larger than 30 milliamperes, the battery is determined to enter a discharging state, after the battery enters the discharging state, the battery protection module can track the voltage condition of a single battery in real time, when the voltage of any battery is smaller than 2.0 volts and the duration is larger than 20 seconds, the battery enters a scrapping mode, namely the battery protection module closes the input and the output of a main loop to control the battery to be incapable of charging and discharging, and meanwhile, the microprocessor can also give out scrapping battery indications, such as voice prompt, light prompt and the like. If the voltage of the single battery is less than 2.0 volts and the duration is more than 20 seconds when the battery is in the discharge state, the discharge state is continuously maintained.
(2) If the discharging current is detected, the discharging current value is less than or equal to 30 milliamperes and the battery is not dormant, the battery is determined to be in a standby state, after the battery enters the standby state, the battery protection module can track the voltage condition of a single battery in real time, when the voltage of any battery is less than 2.0 volts and the duration is more than 20 seconds, the battery enters a scrapping mode, namely the battery protection module closes the input and output of a main loop to control the battery to be incapable of charging and discharging, and meanwhile, the microprocessor can send scrapping battery indications such as voice prompt, light prompt and the like. If the voltage of a single battery is less than 2.0 volts and the duration is more than 20 seconds when the battery is in the standby state, the standby state is continuously maintained.
(3) If the circuit protection module detects a sleep command sent by the microprocessor, or when the voltage of any battery is less than 2.3 volts and the duration is longer than 10 seconds, the battery is determined to enter a sleep state, and the input and the output of the main loop are closed to enter an ultra-low power consumption state. After the battery is in the sleep state, the battery needs to be awakened externally by controlling an external awakening circuit through a charger or a microprocessor. When the circuit protection module is awakened, the input and the output of the main loop are closed firstly, so that the condition that the voltage of the battery is increased to influence the judgment due to the fact that the charger charges the battery is avoided. Then, the battery protection module can continuously track the voltage condition of a single battery in real time, when the voltage of any battery is less than 2.0 volts and the duration is more than 20 seconds, the battery enters a scrapping mode, namely the battery protection module closes the input and the output of the main loop to control the battery to be incapable of charging and discharging, and meanwhile, the microprocessor can also give out scrapping battery indications such as voice prompt, light prompt and the like. If the voltage of a single battery is less than 2.0 volts and the duration is more than 20 seconds when the battery is in the dormant state, the battery enters a standby state.
Setting the first voltage threshold to two node values of 2.0 volts and a first preset time of 20 seconds here is used to ensure that the battery is completely dead, mainly because the battery is nearly scrapped when the single battery voltage is around 2.0 volts, and because the battery cannot be reused once the scrapping mode is entered.
The second voltage threshold is set to be two node values of 2.3 volts and a second preset time of 10 seconds, and mainly because the single battery voltage is already low when about 2.3 volts, a low-power-consumption sleep mode needs to be entered, otherwise, the single battery is scrapped soon. The value of 10 seconds is set to be long enough to prevent the occurrence of erroneous determination results, but the time is not so long that the voltage of the battery is consumed quickly.
It is understood that the first voltage threshold, the first preset time, the second voltage threshold, and the second preset time are not limited to the above values, as long as the second voltage threshold is greater than the first voltage threshold.
Through the mutual cooperation of the battery protection module and the microprocessor, the battery can be monitored in a discharging state, a standby state and a dormant state, so that the battery can be immediately executed under the condition that the battery needs to be scrapped, and the potential safety hazard of the battery is reduced.
Example four:
referring to fig. 6, an embodiment of a safety processing device for a battery of an unmanned aerial vehicle according to the present invention is shown. The unmanned vehicles battery safety processing apparatus includes: an acquisition module 610, a judgment module 620 and a control module 630.
The collecting module 610 is configured to collect electrical performance parameters of the battery, where the electrical performance parameters include a discharge current value of the battery and a voltage value of a single battery. The judging module 620 is configured to judge whether the battery is over-discharged according to the electrical performance parameter. The control module 630 is configured to control the battery to be incapable of charging and discharging when the determination result of the determination module is yes.
In an embodiment, the determining module 620 is specifically configured to determine that the battery is overdischarged when the voltage value of the single battery is smaller than the first voltage threshold and the duration is greater than the first preset time.
Further, in one embodiment, the apparatus further includes a detection module for detecting a sleep command of the battery, and a determination module for determining a battery status according to the electrical performance parameter and the detection result. The battery state includes a discharge state, a sleep state, and a standby state.
In one embodiment, the first voltage threshold is 2 volts and the first predetermined time is 20 seconds.
Further, in one embodiment, the determining module is configured to determine that the battery state is a discharge state when the discharge current value of the battery is greater than the first current threshold; when the discharge current value of the battery is smaller than or equal to the first current threshold value and no sleep instruction of the battery is detected, determining that the battery state is a standby state; and when the duration time that the voltage value of the single battery is smaller than the second voltage threshold value is longer than a second preset time or a sleep command of the battery is detected, determining that the battery state is a sleep state.
Further, in an embodiment, when the battery state is determined to be the sleep state according to the electrical performance parameter and the detection result, the detection module is further configured to detect an external wake-up command, and when the detection module detects the external wake-up command, the control module 630 may close the charging loop and the discharging loop of the battery.
In one embodiment, the first current threshold is 30 milliamps, the second voltage threshold is 2.3 volts, and the second time threshold is 10 seconds.
In one embodiment, the apparatus further comprises a prompt module for issuing a discard battery prompt after the control module 630 controls the battery to be unable to be charged and discharged.
It should be noted that, the method embodiment and the apparatus embodiment are implemented based on the same inventive concept, and technical effects and technical features that the method embodiment can have can be executed or implemented by corresponding functional modules in the apparatus embodiment, which are not described herein for simplicity and convenience of presentation.
Example five:
fig. 7 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention. The unmanned aerial vehicle can execute the unmanned aerial vehicle battery safety processing method provided by the method embodiment. As shown in fig. 7, the unmanned aerial vehicle 70 includes one or more processors 701 and a memory 702. In fig. 7, one processor 701 is taken as an example. The unmanned aerial vehicle may further include a rejection prompting device 703. Of course, other suitable device modules may be added or omitted as the actual situation requires.
The processor 701, the memory 702, and the discard prompting device 703 may be connected by a bus or other means, and fig. 7 illustrates an example of a bus connection.
The memory 702 is used as a non-volatile computer-readable storage medium, and may be used to store a non-volatile software program, a non-volatile computer-executable program, and modules, such as program instructions or modules corresponding to the method for safely processing a battery of an unmanned aerial vehicle in an embodiment of the present invention, for example, the collecting module 610, the determining module 620, and the control module 630 shown in fig. 6, where the rejection prompting device 703 in the unmanned aerial vehicle may be a voice playing device or a light indicating device, and the present invention is not limited strictly. The processor 701 executes various functional applications of the server and data processing by running nonvolatile software programs, instructions and modules stored in the memory 702, namely, the method for safely processing the battery of the unmanned aerial vehicle according to the embodiment of the method is realized.
The memory 702 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store some historical data calculated by the electricity meter, and the like. Further, the memory 702 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 702 may optionally include memory located remotely from the processor 701, examples of which include, but are not limited to, the internet, an intranet, a local area network, a mobile communications network, and combinations thereof.
Those of skill would further appreciate that the various steps of the exemplary motor control methods described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation.
Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. The computer software may be stored in a computer readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. The storage medium can be a magnetic disk, an optical disk, a read-only memory or a random access memory.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An unmanned aerial vehicle battery safety processing method is characterized by comprising the following steps:
collecting electrical performance parameters of the battery, wherein the electrical performance parameters comprise a discharge current value of the battery and a voltage value of a single battery;
detecting a sleep command of a battery;
determining the battery state according to the electrical performance parameters and the detection result;
wherein the battery state comprises a discharge state, a sleep state and a standby state;
when the battery state is determined to be a dormant state according to the electrical performance parameters and the detection result, detecting an external awakening instruction;
when an external awakening command is detected, closing a charging loop and a discharging loop of the battery;
judging whether the battery is over-discharged or not according to the electrical property parameters;
if so, controlling the battery to be incapable of being charged and discharged, and sending a scrapped battery prompt; wherein the determining whether the battery is over-discharged according to the electrical performance parameter includes:
and when the voltage value of the single battery is smaller than a first voltage threshold value and the duration time is longer than a first preset time, judging that the battery is over-discharged.
2. The method of claim 1, wherein the first voltage threshold is 2 volts and the first predetermined time is 20 seconds.
3. The method of claim 1, wherein determining the battery state based on the electrical performance parameter and the detection comprises:
comparing the discharge current value and the voltage value of the single battery with a first current threshold value and a second voltage threshold value respectively;
when the discharge current value of the battery is larger than the first current threshold value, determining that the battery state is a discharge state;
when the discharge current value of the battery is smaller than or equal to the first current threshold value and no sleep instruction of the battery is detected, determining that the battery state is a standby state;
and when the duration time that the voltage value of the single battery is smaller than the second voltage threshold value is longer than a second preset time or a sleep command of the battery is detected, determining that the battery state is a sleep state.
4. The method of claim 3, wherein the first current threshold is 30 milliamps, the second voltage threshold is 2.3 volts, and the second predetermined time is 10 seconds.
5. An unmanned aerial vehicle battery safety processing device, comprising:
the acquisition module is used for acquiring electrical performance parameters of the battery, wherein the electrical performance parameters comprise a discharge current value of the battery and a voltage value of a single battery;
the detection module is used for detecting a sleep instruction of the battery;
the determining module is used for determining the battery state according to the electrical performance parameters and the detection result;
wherein the battery state comprises a discharge state, a sleep state and a standby state;
the detection module is further configured to: when the battery state is determined to be a dormant state according to the electrical performance parameters and the detection result, detecting an external awakening instruction; and
when an external wake-up instruction exists, closing a charging loop and a discharging loop of the battery through the control module;
the judging module is used for judging whether the battery is over-discharged or not according to the electrical performance parameters;
the control module is used for controlling the battery to be incapable of charging and discharging when the judgment result of the judgment module is yes;
the prompting module is used for sending a scrapped battery prompt after the control module controls the battery to be incapable of being charged and discharged;
the judging module is specifically configured to judge that the battery is overdischarged when it is determined that the voltage value of the single battery is smaller than a first voltage threshold and the duration is longer than a first preset time.
6. The apparatus of claim 5, wherein the first voltage threshold is 2 volts and the first predetermined time is 20 seconds.
7. The apparatus of claim 5, wherein the determination module is specifically configured to:
comparing the discharge current value of the battery and the voltage value of the single battery with a first current threshold value and a second voltage threshold value respectively;
when the discharge current value of the battery is larger than the first current threshold value, determining that the battery state is a discharge state;
when the discharge current value of the battery is smaller than or equal to the first current threshold value and no sleep command of the battery is detected, determining that the battery state is a standby state;
and when the duration time that the voltage value of the single battery is smaller than the second voltage threshold value is longer than a second preset time or a sleep command of the battery is detected, determining that the battery state is a sleep state.
8. The apparatus of claim 7, wherein the first current threshold is 30 milliamps, the second voltage threshold is 2.3 volts, and the second predetermined time is 10 seconds.
9. An UAV comprising a memory and a processor, the memory storing a program that, when read and executed by the processor, implements the UAV battery safety processing method according to any one of claims 1 to 4.
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| CN201810725556.5A CN108767929B (en) | 2018-07-04 | 2018-07-04 | Unmanned aerial vehicle battery safety processing method and device |
| PCT/CN2019/094599 WO2020007328A1 (en) | 2018-07-04 | 2019-07-03 | Safety processing method and device for battery of unmanned aerial vehicle |
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| CN109617167B (en) | 2018-12-21 | 2021-06-01 | 深圳市道通智能航空技术股份有限公司 | Battery overdischarge warning method and device, battery and aircraft |
| CN112039145B (en) * | 2020-08-14 | 2022-12-16 | 珠海格力电器股份有限公司 | Storage control method and device for electrical equipment, storage medium and electrical equipment |
| CN112713626B (en) * | 2020-12-21 | 2023-03-24 | 金卡智能集团股份有限公司 | Battery control method and device |
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| US6414467B1 (en) * | 2001-07-03 | 2002-07-02 | Ten-Der Wu | Charging device with battery detection and protection function |
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| CN103532106B (en) * | 2013-11-04 | 2016-05-25 | 武汉大学 | A kind of single-lithium-battery pond protection chip with accurate delay and sleep mode |
| CN108767929B (en) * | 2018-07-04 | 2022-11-25 | 深圳市道通智能航空技术股份有限公司 | Unmanned aerial vehicle battery safety processing method and device |
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| US6414467B1 (en) * | 2001-07-03 | 2002-07-02 | Ten-Der Wu | Charging device with battery detection and protection function |
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