A battery monitoring method, system, terminal device and storage medium

Abstract

The present application relates to the field of battery technology, and in particular to a battery monitoring method, system, terminal device and storage medium, wherein the method comprises: obtaining battery temperature; determining whether the battery temperature exceeds a preset temperature threshold; if it exceeds the preset temperature threshold, obtaining current battery capacity information; obtaining corresponding discharge duration information according to the current battery capacity information; generating analysis results by combining the current battery capacity information and the discharge duration information; determining whether the analysis results meet preset switching standards; if they meet the preset switching standards, switching the battery pack according to preset switching rules. The battery monitoring method, system, terminal device and storage medium provided by the present application have the effect of improving the safety of battery use, thereby improving the service life of the battery.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery monitoring method, system, terminal device and storage medium. Background Art

[0002] A storage battery, also known as a secondary battery, is an electrical device that stores the electrical energy obtained in the form of chemical energy and converts chemical energy into electrical energy.

[0003] Marine power sources or emergency power sources mainly use lead-acid batteries. Marine batteries are numerous and large in size, so the performance of the battery pack is directly related to whether the ship can operate normally.

[0004] As the running time increases, the battery temperature will rise, leading to faster electrochemical reactions, faster evaporation of the electrolyte, plate corrosion and sulfidation and other abnormal conditions. At the same time, it is easy to overcharge, which will cause its capacity to decrease or even fail, affecting the battery's service life. Summary of the invention

[0005] In order to improve the safety of battery use and thereby increase the service life of the battery, the present application provides a battery monitoring method, system, terminal device and storage medium.

[0006] In a first aspect, the present application provides a battery monitoring method, comprising the following steps:

[0007] Get battery temperature;

[0008] Determining whether the battery temperature exceeds a preset temperature threshold;

[0009] If the preset temperature threshold is exceeded, obtaining current battery capacity information;

[0010] According to the current battery capacity information, obtaining corresponding discharge duration information;

[0011] Combining the current battery capacity information and the discharge duration information to generate an analysis result;

[0012] Determining whether the analysis result meets a preset switching standard;

[0013] If the preset switching standard is met, the battery pack is switched according to the preset switching rule.

[0014] By adopting the above technical solution, it is determined whether the battery temperature exceeds the preset temperature threshold, the current battery capacity information exceeding the preset temperature threshold is obtained, and the corresponding discharge time information is further obtained based on the current battery capacity information, so as to generate a comprehensive analysis result of the battery temperature and usage time in combination with the current battery capacity information, and then determine whether the analysis result meets the preset switching standard of the battery pack. If it meets the standard, the battery pack is switched according to the preset switching standard, thereby improving the safety of battery use and further improving the battery life.

[0015] Optionally, combining the current battery capacity information and the discharge duration information to generate an analysis result includes the following steps:

[0016] According to the current battery capacity information, obtaining a corresponding discharge capacity;

[0017] Determining whether the discharge capacity meets a preset discharge standard;

[0018] If the preset discharge standard is not met, obtaining the discharge duration information corresponding to the discharge capacity;

[0019] According to the discharge duration information, obtaining an estimated discharge duration;

[0020] Determining whether the estimated total discharge duration meets a preset discharge duration standard;

[0021] If the preset discharge time standard is not met, the power supply voltage is analyzed and the analysis result is generated.

[0022] By adopting the above technical solution, a comprehensive analysis is performed on the discharge capacity and the corresponding expected discharge time, thereby strengthening the performance analysis of the battery pack during operation.

[0023] Optionally, if the preset discharge time standard is not met, acquiring and analyzing the power supply voltage, and generating the analysis result comprises the following steps:

[0024] According to the power supply voltage, obtaining a voltage fluctuation range of the current working voltage;

[0025] Determining whether the voltage fluctuation range meets a preset fluctuation standard;

[0026] If the preset fluctuation standard is not met, an abnormal fluctuation signal is generated, and the current power supply is obtained as the analysis result according to the abnormal fluctuation signal.

[0027] By adopting the above technical solution, the voltage fluctuation range of the current working voltage is judged according to the preset fluctuation standard. If the voltage fluctuation range does not meet the corresponding preset fluctuation standard, the corresponding abnormal fluctuation signal is obtained, thereby strengthening the safety detection and analysis of the battery during operation.

[0028] Optionally, the current power supply includes a main power supply, and if the preset switching standard is met, switching the battery pack according to a preset switching rule includes the following steps:

[0029] According to the power information of the main power supply voltage, a corresponding unit power-off amplitude is obtained;

[0030] According to the preset switching standard, obtaining a power-off switching amplitude standard;

[0031] Determining whether the unit power-off amplitude meets the power-off switching amplitude standard;

[0032] If the power-off switching amplitude standard is met, the switching condition of the main power supply is obtained according to the preset switching rule;

[0033] The backup power source of the battery pack is switched to according to the switching condition.

[0034] By adopting the above technical solution, it is determined whether the unit power-off amplitude of the main power source meets the corresponding power-off switching amplitude standard, thereby reducing the occurrence of a situation where the main power source cannot supply power normally due to excessive power-off amplitude.

[0035] Optionally, the switching to the backup power supply of the battery pack according to the switching condition comprises the following steps:

[0036] According to the switching condition, obtaining a minimum operating voltage value;

[0037] Processing the minimum operating voltage value according to a preset safety rule to generate a voltage switching setting value;

[0038] Determining whether the current voltage of the main power source meets the voltage switching setting value;

[0039] If the voltage switching setting value is met, the backup power supply of the battery pack is switched to.

[0040] By adopting the above technical solution, the voltage switching setting value of the battery pack is set according to the minimum operating voltage value of the electrical equipment, and it is further determined whether the current voltage of the main power supply meets the corresponding voltage switching setting value, so that the battery pack can be reasonably switched according to the actual power consumption situation.

[0041] Optionally, the current power supply includes a main power supply voltage, and if the preset switching standard is met, switching the battery pack according to a preset switching rule includes the following steps:

[0042] According to the preset switching standard, obtaining the backup power supply voltage of the battery pack;

[0043] Determining whether the main power supply voltage is lower than the backup power supply voltage;

[0044] If it is lower than the backup power supply voltage, obtaining and determining whether the voltage difference between the main power supply voltage and the backup power supply voltage meets the preset backup power supply switching standard;

[0045] If the preset backup power switching standard is met, the backup power supply of the battery pack is switched to.

[0046] By adopting the above technical solution, it is determined whether the voltage difference between the main power supply voltage and the backup power supply voltage meets the preset backup power supply switching standard, thereby reducing the occurrence of switching to the backup battery when the main power supply voltage is sufficient to ensure normal power consumption of the electrical equipment, thereby extending the service life of the backup power supply battery.

[0047] Optionally, if the preset switching standard is met, switching the battery pack according to the preset switching rule further includes the following steps:

[0048] According to the preset switching standard, obtaining the main power supply power and the backup power supply power;

[0049] Calculate the target weight of the main power supply power to the backup power supply power;

[0050] Determining whether the target weight meets the preset switching weight;

[0051] If the preset switching weight is met, the backup power supply of the battery pack is switched to.

[0052] By adopting the above technical solution, the battery pack is reasonably switched according to the target weight of the main power supply power to the backup power supply power, thereby extending the service life of the battery pack batteries.

[0053] In a second aspect, the present application also provides a battery monitoring system, comprising:

[0054] A first acquisition module, used to acquire battery temperature;

[0055] A first judgment module, used to judge whether the battery temperature exceeds a preset temperature threshold;

[0056] a second acquisition module, wherein if the battery temperature exceeds the preset temperature threshold, the second acquisition module is used to acquire current battery capacity information;

[0057] A third acquisition module is used to acquire corresponding discharge duration information according to the current battery capacity information;

[0058] A generating module, used for combining the current battery capacity information and the usage time information to generate an analysis result;

[0059] A second judgment module is used to judge whether the analysis result meets the preset switching standard;

[0060] A switching module, if the analysis result meets the preset switching standard, the switching module is used to switch the battery pack according to the preset switching rule.

[0061] By adopting the above technical solution, the first judgment module determines whether the battery temperature obtained by the first acquisition module exceeds the preset temperature threshold, and then the second acquisition module obtains the current battery capacity information exceeding the preset temperature threshold, and further obtains the corresponding discharge time information according to the current battery capacity information through the third acquisition module, so that the generation module generates a comprehensive analysis result of the battery temperature and usage time in combination with the current battery capacity information, and then determines whether the analysis result meets the preset switching standard of the battery pack through the second judgment module. If it meets the preset switching standard, the switching module further switches the battery pack according to the preset switching standard, thereby improving the safety of battery use and the service life of the battery.

[0062] In a third aspect, the present application provides a terminal device, which adopts the following technical solution:

[0063] A terminal device includes a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor loads and executes the computer program, the above-mentioned battery monitoring method is adopted.

[0064] By adopting the above technical solution, the above-mentioned battery monitoring method is generated into a computer program and stored in a memory so as to be loaded and executed by a processor, thereby making a terminal device based on the memory and the processor for easy use.

[0065] In a fourth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solution:

[0066] A computer-readable storage medium stores a computer program, and when the computer program is loaded and executed by a processor, the above-mentioned battery monitoring method is adopted.

[0067] By adopting the above technical solution, the above-mentioned battery monitoring method is generated into a computer program and stored in a computer-readable storage medium so as to be loaded and executed by a processor. The computer-readable storage medium facilitates the reading and storage of the computer program.

[0068] In summary, the present application includes the following beneficial technical effects: determining whether the battery temperature exceeds a preset temperature threshold, obtaining current battery capacity information exceeding the preset temperature threshold, and further obtaining corresponding discharge time information based on the current battery capacity information, so as to generate a comprehensive analysis result of the battery temperature and usage time in combination with the current battery capacity information, and then determining whether the analysis result meets the preset switching standard of the battery pack. If so, the battery pack is switched according to the preset switching standard, thereby improving the safety of battery use and further improving the battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 It is a flowchart of steps S101 to S107 in a battery monitoring method of the present application.

[0070] Figure 2 It is a flowchart of steps S201 to S206 in a battery monitoring method of the present application.

[0071] Figure 3 It is a flowchart of steps S301 to S303 in a battery monitoring method of the present application.

[0072] Figure 4 It is a flowchart of steps S401 to S405 in a battery monitoring method of the present application.

[0073] Figure 5 It is a flowchart of steps S501 to S504 in a battery monitoring method of the present application.

[0074] Figure 6 It is a flowchart of steps S601 to S604 in a battery monitoring method of the present application.

[0075] Figure 7 It is a flowchart of steps S701 to S704 in a battery monitoring method of the present application.

[0076] Figure 8 It is a module schematic diagram of a battery monitoring system of the present application.

[0077] Description of reference numerals:

[0078] 1. First acquisition module; 2. First judgment module; 3. Second acquisition module; 4. Third acquisition module; 5. Generation module; 6. Second judgment module; 7. Switching module. DETAILED DESCRIPTION

[0079] The following is combined with Figure 1-8 This application is described in further detail.

[0080] In order to facilitate the explanation of this scheme, marine batteries are taken as an example, wherein marine batteries are roughly divided into: ship starting batteries, which are suitable for cabin diesel engine groups and are the main hardware facilities for ship movement. When the engine group is started, it can instantly release a strong current to enable the engine to run at high speed.

[0081] Ship communication system batteries are mainly used for shipboard emergency lighting, signal lights, alarm systems, UPS computer backup power supplies, shipboard equipment, telecommunication equipment, etc. They are a backup device for ship power supply in the event of generator failure or non-function.

[0082] Electric batteries are deep-drawn and deep-discharged. The plate structure or appearance design inside the electric battery is different from the above two. It requires very sophisticated manufacturing technology to ensure the ship's travel time on the water.

[0083] The present application embodiment discloses a battery monitoring method, referring to Figure 1 , including the following steps:

[0084] S101, obtaining battery temperature;

[0085] S102, determining whether the battery temperature exceeds a preset temperature threshold;

[0086] S103, if the temperature exceeds the preset threshold, obtaining current battery capacity information;

[0087] S104, acquiring corresponding discharge duration information according to current battery capacity information;

[0088] S105, generating an analysis result by combining the current battery capacity information and the usage time information;

[0089] S106, judging whether the analysis result meets the preset switching standard;

[0090] S107: If the preset switching standard is met, the battery pack is switched according to the preset switching rule.

[0091] The battery temperature in step S101 to step S102 refers to the temperature value of the battery pack when it is working, and the preset temperature threshold refers to the safe operating temperature of the battery pack.

[0092] In actual use, as the working time of the battery pack increases, the battery temperature (electrolyte temperature) rises, the active materials on the anode and cathode plates will deteriorate and corrode the anode grid, shortening the anode grid and thus shortening the battery life; conversely, when the battery temperature is too low, the battery storage capacity will be reduced, prone to over-discharge, and thus shortening the battery life. This relationship will also change due to battery type and plate material.

[0093] The current battery capacity information in step 103 to step S104 refers to the storage capacity information of the battery pack, and the discharge duration information refers to the time information of the battery normally outputting electric energy to the outside.

[0094] In actual use, temperature has a great impact on battery performance, one of the most important performance is the battery discharge time; if the temperature drops, the reaction rate of the battery electrode will also decrease. Assuming that the battery voltage remains constant, the discharge current decreases, the discharge time is shortened, and the battery power output will also decrease.

[0095] For example, as the temperature decreases, the discharge performance of lithium batteries decreases significantly. The discharge capacity at room temperature of 20°C is 29, and it can be discharged for about 2100 seconds at a discharge rate of 0.5C (with 1V as the cut-off voltage). The discharge capacity at low temperature of -20°C is 12.5, which is 43% of the discharge capacity at room temperature. At this time, the discharge can only last for 900 seconds.

[0096] If the temperature rises, the opposite will happen, that is, the battery output power will increase. The temperature also affects the transmission speed of the electrolyte. If the temperature rises, the transmission will speed up, and if the transmission temperature drops, the transmission will slow down. The charging and discharging performance of the lithium battery will also be affected.

[0097] If the temperature is too high, the chemical balance in the battery will be destroyed, leading to side reactions. The performance of the lithium battery material will deteriorate at high temperatures, and the cycle life of the battery will be greatly shortened.

[0098] The analysis result in step 105 refers to the result of comprehensive analysis of the battery temperature change and the battery discharge time.

[0099] In actual use, there is a certain relationship between battery capacity and temperature. The optimal temperature for battery performance is 25°C. When the temperature drops by 1 degree, the relative capacity decreases by about 0.8%. At this time, the corresponding normal discharge time will also be reduced.

[0100] The preset switching standard in step S107 to step S108 refers to the switching standard specified according to the specifications and performance of the electric equipment and the battery pack.

[0101] In actual use, ships are generally equipped with main and backup battery packs to cope with emergencies during the ship's power consumption. On the other hand, reasonable switching will be carried out according to the actual operating conditions of the main and backup battery packs to ensure the safe use of the batteries and extend the service life of the battery packs.

[0102] The battery monitoring method provided in the embodiment of the present application determines whether the battery temperature exceeds a preset temperature threshold, obtains the current battery capacity information that exceeds the preset temperature threshold, and further obtains the corresponding discharge time information based on the current battery capacity information, so as to generate a comprehensive analysis result of the battery temperature and usage time in combination with the current battery capacity information, and then determines whether the analysis result meets the preset switching standard of the battery pack. If so, the battery pack is switched according to the preset switching standard, thereby improving the safety of battery use and further improving the battery life.

[0103] In one implementation of this embodiment, Figure 2 As shown, step S105 includes the following steps:

[0104] S201, acquiring corresponding discharge capacity according to current battery capacity information;

[0105] S202, determining whether the discharge capacity meets the preset discharge standard;

[0106] S203, if the preset discharge standard is not met, obtaining discharge time information corresponding to the discharge capacity;

[0107] S204, obtaining an estimated discharge duration according to the discharge duration information;

[0108] S205, determining whether the estimated total discharge duration meets the preset discharge duration standard;

[0109] S206: If the preset discharge time standard is not met, the power supply voltage is analyzed to obtain the analysis result.

[0110] In actual use, discharge capacity refers to the capacity value of the battery output measured under specified conditions. Battery discharge is the process of outputting electrical energy to the outside. The preset discharge standard refers to the capacity value standard output by the battery under normal circumstances. The expected discharge time refers to the normal discharge time obtained by combining the actual situation of the current battery and related algorithms. The preset discharge time standard refers to the time standard that the battery should continue to discharge based on the actual situation of the battery capacity.

[0111] For example, at 20°C, the discharge capacity of the battery is 29, which is roughly equal to the discharge capacity of the battery at room temperature; at 10°C, the discharge capacity of the battery is 27, which is 93% of the discharge capacity of the battery at room temperature; at 0°C, the discharge capacity of the battery is 25, which is 86% of the discharge capacity of the battery at room temperature; at -10°C, the discharge capacity of the battery is 19, which is 65% of the discharge capacity of the battery at room temperature; at -20°C, the discharge capacity of the battery is 12.5, which is 43% of the discharge capacity of the battery at room temperature.

[0112] According to the preset discharge standard, the discharge capacity of the battery at 0°C is 27. Based on the current battery capacity information, the corresponding discharge capacity is 25. It can be judged that it does not meet the preset discharge standard, and the discharge time information of the battery is further obtained and analyzed.

[0113] For another example, according to the current battery capacity information, the corresponding discharge capacity is obtained as 27, which can be judged to meet the preset discharge standard, and the value of the current battery capacity is recorded in real time.

[0114] Among them, ampere per hour or watt per hour is usually used as the scale of battery capacity. This parameter is the value recorded when the battery is discharged to a specific cut-off voltage at a characteristic rate.

[0115] For another example, the battery capacitance is C (unit: mA·h), the average current is I (unit: mA), and the battery discharge time is defined as: t=C / In, where n is the duty cycle. If the battery discharge capacity is 100mA·h, the circuit operating current is 5mA, and the circuit only works for 3min per hour (duty cycle is 3 / 60), the battery discharge time is: t=100h / (5×3 / 60)=400h.

[0116] From the above, it can be seen that the size of the battery discharge capacitor affects the battery discharge time. For example, according to the preset discharge time standard, the lithium battery discharge time standard is 400h. Then, according to the above formula, the estimated discharge time of the lithium battery is 150h. It can be concluded that the estimated discharge time of the lithium battery at this time does not meet the corresponding preset discharge time standard, and the power supply voltage of the battery pack is further analyzed.

[0117] The battery monitoring method provided in this embodiment performs a comprehensive analysis on the discharge capacity and the corresponding expected discharge duration, thereby strengthening the safety performance analysis of the battery pack during operation.

[0118] In one implementation of this embodiment, Figure 3 As shown, step S206 includes the following steps:

[0119] S301, obtaining a voltage fluctuation range of a current working voltage according to a power supply voltage;

[0120] S302, determining whether the voltage fluctuation range meets the preset fluctuation standard;

[0121] S303: If the preset fluctuation standard is not met, an abnormal fluctuation signal is generated, and the current power supply is obtained as an analysis result according to the abnormal fluctuation signal.

[0122] In actual use, power supply voltage refers to the power supply voltage provided by the battery pack to the electrical equipment; voltage fluctuation range refers to the voltage fluctuation range of the battery pack when it provides power to the electrical equipment; preset fluctuation standard refers to the voltage fluctuation range allowed when the battery pack is supplying power to the electrical equipment normally;

[0123] Among them, in the middle stage of discharge of the battery pack, as the concentration of dispersed sulfuric acid on the surface of the active material continues to decrease, the concentration difference of the main solution increases, which promotes the dispersion speed of sulfuric acid to the surface and pores of the plate, so that the water generation in the pores of the plate and the electrolyte with higher density outside the plate achieve a dynamic balance, and the rate of decrease of the electrolyte density in the pores is reduced, so the voltage drop of the battery also becomes slow.

[0124] If the discharge continues, the electrolyte outside the plate will almost stop entering the effective material inside the plate, and the electrolyte in the pores will almost turn into water, so the voltage will drop sharply. If the discharge is stopped, the battery voltage will immediately rise.

[0125] The voltage of the battery during discharge is also related to the discharge current. The greater the discharge current, the faster the terminal voltage of the battery drops. The reason is that the speed at which the electrolyte diffuses into the pores of the plate is limited. Therefore, when the discharge rate changes, the battery's discharge start voltage, average voltage and stop voltage all change accordingly.

[0126] From the above, it can be seen that the voltage fluctuation range of the battery pack during discharge is particularly important. If the voltage rises too high, it will increase the current and temperature of the electrical appliance, causing insulation damage due to heat, or electrical breakdown due to excessive electric field, affecting the service life of the battery; if the voltage drops too low, it may cause unstable operation of electrical equipment or even damage the equipment.

[0127] For example, based on the power supply voltage, the maximum value of the voltage fluctuation range of the current working voltage of the lead-acid battery is 3V, and the minimum value is 1.9V. According to the preset fluctuation standard of the lead-acid battery, the minimum discharge of the lead-acid battery cannot be lower than 1.8V. Below this value, the battery will sulfide and reduce the capacity. The maximum value cannot exceed 2.35V. Exceeding this value, the battery will generate heat and cause water evaporation. From the above, it can be obtained that the maximum value of the lead-acid battery exceeds 2.35V, then the corresponding abnormal fluctuation signal is generated, and the current power supply of the battery pack is obtained as the analysis result based on the abnormal fluctuation signal.

[0128] For another example, the maximum value of the voltage fluctuation range of the current working voltage of the lead-acid battery is 2V, and the minimum value is 1.9V. It can be determined that the lead-acid battery meets the preset fluctuation standard at this time, and the voltage fluctuation value range of the working voltage of the lead-acid battery is recorded in real time.

[0129] The battery monitoring method provided in this embodiment determines the voltage fluctuation range of the current working voltage according to the preset fluctuation standard. If the voltage fluctuation range does not meet the corresponding preset fluctuation standard, the corresponding abnormal fluctuation signal is obtained, thereby strengthening the safety detection and analysis of the battery during operation.

[0130] In one implementation of this embodiment, Figure 4 As shown, the current power supply includes the main power supply, and step S107 includes the following steps:

[0131] S401, obtaining a corresponding unit power-off amplitude according to the power information of the main power supply;

[0132] S402, obtaining a power-off switching amplitude standard according to a preset switching standard;

[0133] S403, judging whether the unit power-off amplitude meets the power-off switching amplitude standard;

[0134] S404, if the power-off switching amplitude standard is met, obtaining the switching condition of the main power supply according to the preset switching rule;

[0135] S405. Switch to the backup power supply of the battery pack according to the switching condition.

[0136] In actual use, the current power supply refers to the battery power that currently provides power to the electrical equipment; the main power supply refers to the battery power that mainly provides power to the electrical equipment; the power information refers to the power consumption of the main power supply in the process of supplying power to the electrical equipment; the unit power failure amplitude refers to the power loss of the battery pack per unit time; the power failure switching amplitude standard refers to the amplitude standard when the unit power failure amplitude reaches the switching amplitude; the preset switching rules refer to the relevant rules for reasonable switching between the main power supply and the backup power supply; the switching conditions of the main power supply refer to the specific conditions to be met for the main power supply to switch to the backup power supply.

[0137] Among them, under normal circumstances, the unit power loss of the battery pack is too large, and the power drops rapidly. There are generally the following reasons: sulfation, the battery pack is over-discharged or charged in time after discharge, which will cause lead sulfate to recrystallize. The recrystallized lead sulfate is dense and coarse. Such a cycle will cause premature aging of the battery pack; passivation, the floating charge voltage after deep discharge is too low or the overcharge is greater than 120%. After multiple cycles, the thickness of the barrier layer will increase, and the resistance of the barrier layer will increase. Finally, the constant voltage charging current is small, and the constant current charging terminal voltage rises quickly. Under normal circumstances, it cannot be fully charged. During discharge, the terminal voltage drops quickly, making the discharge capacity far lower than the design capacity value, resulting in premature aging of the battery capacity.

[0138] For example, if the power loss of a lead-acid battery is 8% within one hour, according to the power-loss switching amplitude standard, it can be obtained that if the power loss of the lead-acid battery exceeds 6% within one hour, switching will be performed. At this time, it can be determined that the unit power loss amplitude of the lead-acid battery meets the corresponding power-loss switching amplitude standard, and then switch to the backup power supply of the battery pack according to the specific switching conditions specified in the preset switching rules.

[0139] For another example, if a lead-acid battery loses 5% of its power within one hour, it can be determined that the unit power loss amplitude of the lead-acid battery does not meet the corresponding power-loss switching amplitude standard, and the main power supply continues to supply power to the electrical equipment.

[0140] The battery monitoring method provided in this embodiment determines whether the unit power-off amplitude of the main power source meets the corresponding power-off switching amplitude standard, thereby reducing the occurrence of a situation where the main power source cannot supply power normally due to excessive power-off amplitude.

[0141] In one implementation of this embodiment, Figure 5 As shown, the current power supply includes the main power supply, and step S107 includes the following steps:

[0142] S501, obtaining a minimum operating voltage value according to a switching condition;

[0143] S502, processing the minimum operating voltage value according to a preset safety rule to generate a voltage switching setting value;

[0144] S503, determining whether the current voltage of the main power source meets the voltage switching setting value;

[0145] S504: If the voltage meets the set value for switching, switch to the backup power supply of the battery pack.

[0146] In actual application, the minimum operating voltage value refers to the lowest voltage that can maintain the normal operation of electrical equipment, the preset safety rules refer to the rules for ensuring the safety of electrical equipment, and the voltage switching setting value refers to the voltage switching standard set in combination with the minimum operating voltage value for the safety of electrical equipment.

[0147] Among them, in order to ensure that the electrical equipment can continue to work normally, the voltage provided by the main power supply of the battery pack cannot drop too low, causing the electrical equipment to completely fail to work normally. It will only be switched. If the voltage provided by the main power supply is too lower than the voltage when the electrical equipment is working normally, it may cause the electrical equipment to lose power and restart, resulting in loss of related data.

[0148] For example, if the minimum operating voltage of the electrical equipment is 1.5V, the voltage switching setting value is adjusted to 1.8V according to the preset safety rules. When the current voltage of the main power supply drops to 1.8V, it switches to the backup power supply of the battery pack.

[0149] For another example, when the current voltage of the main power source drops to 2V, it can be determined that the current voltage of the main power source does not meet the corresponding voltage switching setting value, and the main power source continues to supply power to the electrical equipment.

[0150] The battery monitoring method provided in this embodiment sets the voltage switching setting value of the battery pack according to the minimum operating voltage value of the electrical equipment, and further determines whether the current voltage of the main power supply meets the corresponding voltage switching setting value, so that the battery pack can be reasonably switched according to the actual power consumption situation.

[0151] In one implementation of this embodiment, Figure 6 As shown, the current power supply includes the main power voltage, and step S107 includes the following steps:

[0152] S601, obtaining a backup power supply voltage of the battery pack according to a preset switching standard;

[0153] S602, determining whether the main power supply voltage is lower than the backup power supply voltage;

[0154] S603, if it is lower than the backup power supply voltage, obtaining and determining whether the voltage difference between the main power supply voltage and the backup power supply voltage meets the preset backup power supply switching standard;

[0155] S604: If the preset backup power supply switching standard is met, switch to the backup power supply of the battery pack.

[0156] In actual application, the voltage difference refers to the voltage difference between the main power supply voltage and the backup power supply voltage, and the preset backup power supply switching standard refers to the standard that the voltage difference must meet when the main power supply switches to the backup power supply.

[0157] For example, the judgment can be made based on the relative values ​​of the main power supply and the backup power supply. After judging that the main power supply voltage is lower than the backup power supply voltage, and the voltage difference is 5V, the preset backup power supply switching standard is: when the voltage difference between the main power supply and the backup power supply exceeds 4V, it switches from the main power supply to the backup power supply. At this time, it can be determined that the main power supply voltage has met the corresponding preset backup power supply switching standard.

[0158] For another example, after determining that the main power supply voltage is lower than the backup power supply voltage, and the voltage difference is 2V, the preset backup power supply switching standard is: if the voltage difference between the main power supply and the backup power supply exceeds 4V, then switch from the main power supply to the backup power supply. At this time, it can be determined that the main power supply voltage does not meet the corresponding preset backup power supply switching standard, and the electrical equipment continues to be powered by the main power supply.

[0159] The battery monitoring method provided in this embodiment determines whether the voltage difference between the main power supply voltage and the backup power supply voltage meets the preset backup power supply switching standard, thereby reducing the occurrence of switching to the backup battery when the main power supply voltage is sufficient to ensure normal power consumption of the electrical equipment, thereby extending the service life of the backup power supply battery.

[0160] In one implementation of this embodiment, Figure 7 As shown, step S107 includes the following steps:

[0161] S701, obtaining the power of the main power supply and the power of the backup power supply according to a preset switching standard;

[0162] S702, calculating the target weight of the main power supply power to the backup power supply power;

[0163] S703, determining whether the target weight meets the preset switching weight;

[0164] S704: If the preset switching weight is met, switch to the backup power supply of the battery pack.

[0165] In actual application, the target weight refers to the percentage of the current main power supply to the backup power supply, and the preset switching weight refers to the switching percentage numerical standard set according to the percentage of the current main power supply to the backup power supply.

[0166] For example, the percentage of main power supply is 50%, and the percentage of backup power supply is 98%. The target weight of main power supply to backup power supply is 51%. At this time, the preset switching weight is less than or equal to 60%. It can be determined that the main power supply meets the corresponding preset switching weight, and then it switches to the backup power supply of the battery pack, and the backup power supply is used to power the electrical equipment.

[0167] For another example, the percentage of main power supply power is 70%, and the percentage of backup power supply power is 98%. The target weight of main power supply power to backup power supply power is 71%. It can be determined that the main power supply power does not meet the corresponding preset switching weight, and the main power supply continues to supply power to the electrical equipment.

[0168] The battery monitoring method provided in this embodiment reasonably switches the battery pack according to the target weight of the main power supply power to the backup power supply power, thereby extending the service life of the battery pack cells.

[0169] This embodiment also discloses a battery monitoring system, such as Figure 8 As shown, including:

[0170] A first acquisition module 1, used to acquire the battery temperature;

[0171] A first judgment module 2, used to judge whether the battery temperature exceeds a preset temperature threshold;

[0172] A second acquisition module 3, if the battery temperature exceeds the preset temperature threshold, the second acquisition module 3 is used to acquire current battery capacity information;

[0173] A third acquisition module 4 is used to acquire corresponding discharge duration information according to the current battery capacity information;

[0174] A generating module 5, used for combining the current battery capacity information and the usage time information to generate an analysis result;

[0175] A second judgment module 6, used to judge whether the analysis result meets the preset switching standard;

[0176] The switching module 7 is used to switch the battery pack according to the preset switching rule if the analysis result meets the preset switching standard.

[0177] A battery monitoring system provided in this embodiment determines whether the battery temperature obtained by the first acquisition module 1 exceeds a preset temperature threshold according to the first judgment module 2, and then obtains the current battery capacity information exceeding the preset temperature threshold through the second acquisition module 3, and further obtains the corresponding discharge time information according to the current battery capacity information through the third acquisition module 4, so that the generation module 5 generates a comprehensive analysis result of the battery temperature and usage time in combination with the current battery capacity information, and then determines whether the analysis result meets the preset switching standard of the battery group through the second judgment module 6. If it meets the preset switching standard, the battery group is further switched according to the preset switching standard through the switching module 7, thereby improving the safety of battery use and the battery life.

[0178] It should be noted that the battery monitoring system provided in the embodiment of the present application also includes modules and / or corresponding sub-modules corresponding to the logical functions or logical steps of any of the above-mentioned battery monitoring methods, to achieve the same effects as the various logical functions or logical steps, which will not be described in detail here.

[0179] An embodiment of the present application also discloses a terminal device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, wherein when the processor executes the computer program, any one of the battery monitoring methods in the above embodiments is adopted.

[0180] The terminal device may be a computer device such as a desktop computer, a laptop computer or a cloud server, and the terminal device includes but is not limited to a processor and a memory. For example, the terminal device may also include input and output devices, a network access device and a bus.

[0181] Among them, the processor can adopt a central processing unit (CPU). Of course, according to actual usage, other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. can also be adopted. The general-purpose processor can adopt a microprocessor or any conventional processor, etc., and this application does not impose any restrictions on this.

[0182] Among them, the memory can be an internal storage unit of the terminal device, such as a hard disk or memory of the terminal device, or it can be an external storage device of the terminal device, such as a plug-in hard disk, a smart memory card (SMC), a secure digital card (SD) or a flash memory card (FC) equipped on the terminal device, etc., and the memory can also be a combination of an internal storage unit and an external storage device of the terminal device. The memory is used to store computer programs and other programs and data required by the terminal device. The memory can also be used to temporarily store data that has been output or is to be output, and this application does not impose any restrictions on this.

[0183] Among them, through this terminal device, any one of the battery monitoring methods in the above embodiments is stored in the memory of the terminal device, and is loaded and executed on the processor of the terminal device for easy use.

[0184] The embodiment of the present application further discloses a computer-readable storage medium, and the computer-readable storage medium stores a computer program, wherein when the computer program is executed by a processor, any one of the battery monitoring methods in the above embodiments is adopted.

[0185] Among them, the computer program can be stored in a computer-readable medium, the computer program includes computer program code, the computer program code can be in the form of source code, object code, executable file or certain middleware, etc. The computer-readable medium includes any entity or device that can carry the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the computer-readable medium includes but is not limited to the above-mentioned components.

[0186] Among them, through this computer-readable storage medium, any one of the battery monitoring methods in the above embodiments is stored in a computer-readable storage medium, and is loaded and executed on a processor to facilitate the storage and application of the above method.

[0187] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A battery monitoring method, characterized in that: The following steps are involved: Get battery temperature; Determining whether the battery temperature exceeds a preset temperature threshold; If the preset temperature threshold is exceeded, obtaining current battery capacity information; According to the current battery capacity information, obtaining corresponding discharge duration information; Combining the current battery capacity information and the discharge duration information to generate an analysis result; Determining whether the analysis result meets a preset switching standard; If the preset switching standard is met, the battery pack is switched according to the preset switching rule; The generating of the analysis result by combining the current battery capacity information and the discharge duration information comprises the following steps: According to the current battery capacity information, obtaining a corresponding discharge capacity; Determining whether the discharge capacity meets a preset discharge standard; If the preset discharge standard is not met, obtaining the discharge duration information corresponding to the discharge capacity; According to the discharge duration information, obtaining an estimated discharge duration; Determine whether the estimated total discharge duration meets the preset discharge duration standard; If the preset discharge time standard is not met, the power supply voltage is acquired and analyzed to generate the analysis result.

2. A battery monitoring method according to claim 1, characterized in that: If the preset discharge time standard is not met, obtaining and analyzing the power supply voltage, and generating the analysis result comprises the following steps: According to the power supply voltage, obtaining a voltage fluctuation range of the current working voltage; Determining whether the voltage fluctuation range meets a preset fluctuation standard; If the preset fluctuation standard is not met, an abnormal fluctuation signal is generated, and the current power supply is obtained as the analysis result according to the abnormal fluctuation signal.

3. A battery monitoring method according to claim 2, characterized in that: The current power supply includes a main power supply, and if the preset switching standard is met, switching the battery pack according to the preset switching rule includes the following steps: According to the power information of the main power supply, the corresponding unit power failure amplitude is obtained; According to the preset switching standard, obtaining a power-off switching amplitude standard; Determining whether the unit power-off amplitude meets the power-off switching amplitude standard; If the power-off switching amplitude standard is met, the switching condition of the main power supply is obtained according to the preset switching rule; The backup power source of the battery pack is switched to according to the switching condition.

4. A battery monitoring method according to claim 3, characterized in that: The switching to the backup power supply of the battery pack according to the switching condition comprises the following steps: According to the switching condition, obtaining a minimum operating voltage value; Processing the minimum operating voltage value according to a preset safety rule to generate a voltage switching setting value; Determining whether the current voltage of the main power source meets the voltage switching setting value; If the voltage switching setting value is met, the backup power supply of the battery pack is switched to.

5. A battery monitoring method according to claim 2, characterized in that: The current power supply includes a main power supply voltage. If the preset switching standard is met, switching the battery pack according to the preset switching rule includes the following steps: According to the preset switching standard, obtaining the backup power supply voltage of the battery pack; Determining whether the main power supply voltage is lower than the backup power supply voltage; If it is lower than the backup power supply voltage, obtaining and determining whether the voltage difference between the main power supply voltage and the backup power supply voltage meets the preset backup power supply switching standard; If the preset backup power switching standard is met, the backup power supply of the battery pack is switched to.

6. A battery monitoring method according to claim 1, characterized in that: If the preset switching standard is met, switching the battery pack according to the preset switching rule also includes the following steps: According to the preset switching standard, obtaining the main power supply power and the backup power supply power; Calculate the target weight of the main power supply power to the backup power supply power; Determining whether the target weight meets the preset switching weight; If the preset switching weight is met, the backup power supply of the battery pack is switched to.

7. A terminal device, comprising a memory and a processor, characterized in that: The memory stores a computer program that can be run on the processor. When the processor loads and executes the computer program, the battery monitoring method according to any one of claims 1 to 6 is adopted.

8. A computer-readable storage medium having a computer program stored therein, characterized in that: When the computer program is loaded and executed by the processor, the battery monitoring method according to any one of claims 1 to 6 is adopted.

Images