WO2019157613A1 - 终端设备及其电池异常监控方法和监控系统 - Google Patents

终端设备及其电池异常监控方法和监控系统 Download PDF

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Publication number
WO2019157613A1
WO2019157613A1 PCT/CN2018/076597 CN2018076597W WO2019157613A1 WO 2019157613 A1 WO2019157613 A1 WO 2019157613A1 CN 2018076597 W CN2018076597 W CN 2018076597W WO 2019157613 A1 WO2019157613 A1 WO 2019157613A1
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Prior art keywords
battery
voltage
terminal device
latch
temperature
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PCT/CN2018/076597
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English (en)
French (fr)
Inventor
陈社彪
张加亮
张俊
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广东欧珀移动通信有限公司
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Priority to PCT/CN2018/076597 priority Critical patent/WO2019157613A1/zh
Publication of WO2019157613A1 publication Critical patent/WO2019157613A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]

Definitions

  • the present invention relates to the field of terminal equipment technologies, and in particular, to a battery abnormality monitoring method for a terminal device, a battery abnormality monitoring system for the terminal device, and a terminal device.
  • the battery is the source of power for the terminal device, and provides long-term stable power supply for the terminal device such as the mobile phone.
  • the earliest batteries used in mobile terminals are nickel-chromium batteries and nickel-hydrogen batteries, but with the increase of the screen of mobile terminals and the enhancement of functions, the capacity of nickel-chromium batteries and nickel-hydrogen batteries cannot meet the energy demand, and lithium-ion batteries Because it has many advantages, for example, high energy density, it can be made lighter and larger in capacity, faster in charge and discharge, and has no memory effect compared with nickel-chromium or nickel-hydrogen batteries, and is environmentally friendly. Elemental damage is also minimal, so it has gradually replaced traditional nickel-chromium and nickel-metal hydride batteries.
  • lithium-ion batteries effectively solves the problem of battery capacity, there are also certain safety problems. For example, when a lithium-ion battery is damaged and causes a short circuit, it causes heat inside the battery core, and when the heat is generated too fast. At the time of the battery, it is very likely that the battery will catch fire and burst. Therefore, the battery needs to be safely monitored to prevent accidents.
  • the present invention aims to solve at least one of the technical problems in the above-mentioned techniques to some extent. Therefore, the first object of the present invention is to provide a battery abnormality monitoring method for a terminal device, which monitors whether the battery is abnormal due to external damage by monitoring whether the battery voltage is abrupt and the battery charging and discharging current, so as to promptly remind and send the battery. Repair, so as to avoid the safety hazard caused by battery abnormalities.
  • a second object of the present invention is to provide a non-transitory computer readable storage medium.
  • a third object of the present invention is to provide a battery abnormality monitoring system for a terminal device.
  • a fourth object of the present invention is to provide a terminal device.
  • a fifth object of the present invention is to provide a terminal device.
  • a battery abnormality monitoring method for a terminal device includes the following steps: monitoring a battery voltage change of the terminal device in real time, and detecting a change according to the battery voltage. Whether the battery of the terminal device has a sudden voltage change; detecting a charging current and a discharging current of the battery; when the battery has a sudden voltage change, if the charging current of the battery is less than a preset charging current threshold or the battery When the discharge current is less than the preset discharge current threshold, it is determined that the battery is currently abnormal, and the abnormal state of the battery is latched by the first latch.
  • the battery abnormality monitoring method of the terminal device monitors the battery voltage change condition of the terminal device in real time, and detects whether the battery of the terminal device has a sudden voltage change according to the battery voltage change condition, and simultaneously detects the charging current of the battery. And the discharge current, so that when the battery voltage abrupt phenomenon occurs, if the charging current of the battery is less than the preset charging current threshold or the discharging current of the battery is less than the preset discharging current threshold, it is judged that the sudden change of the battery voltage is not caused by the battery charging and discharging.
  • the battery is caused by short-circuiting of the positive and negative electrodes inside the battery caused by external damage such as squeezing, puncturing, etc., so that the battery is currently abnormal, and the abnormal state of the battery is latched by the first latch. Therefore, the present invention can detect whether the battery is abnormal due to damage in real time by monitoring whether the battery voltage is abrupt and the battery charge and discharge current, so that the battery can be monitored in real time when the battery is damaged, and the battery abnormal state is latched and improved. The monitoring accuracy and the timely reminding and repairing can be avoided to avoid the safety hazard caused by the abnormal battery, thereby greatly improving the safety of the terminal device.
  • the battery abnormality monitoring method of the terminal device according to the foregoing embodiment of the present invention may further have the following additional technical features:
  • the temperature detecting module in the terminal device is further enabled by the first latch and a voltage detecting module, wherein the temperature detecting module detects a temperature of the battery and the voltage detecting module detects a voltage of the battery to perform an abnormal state of the battery according to a temperature of the battery and a voltage of the battery Identify again.
  • the abnormal state of the battery is re-identified according to the temperature of the battery and the voltage of the battery, including: respectively determining a temperature of the battery and a voltage of the battery; If the temperature of the battery is less than a preset temperature threshold or the voltage of the battery is less than a preset voltage threshold, it is determined that the battery does not currently have an abnormality; if the temperature of the battery is greater than or equal to a preset temperature threshold and the battery is When the voltage is greater than or equal to the preset voltage threshold, it is determined that the battery is in an abnormal state.
  • the first latch is set when the abnormal state of the battery is re-identified according to the temperature of the battery and the voltage of the battery to determine that the battery does not currently have an abnormality.
  • the device performs a reset to clear an abnormal state of the battery latched in the first latch.
  • the first latch pair is held when the abnormal state of the battery is re-identified according to the temperature of the battery and the voltage of the battery to determine that the battery is in an abnormal state.
  • the latch of the abnormal state of the battery is held when the abnormal state of the battery is re-identified according to the temperature of the battery and the voltage of the battery to determine that the battery is in an abnormal state.
  • the charging current signal of the battery before determining whether the charging current of the battery is less than a preset charging current threshold, is further delayed by a first preset time.
  • the battery is abnormally output through the first latch. Status flag.
  • the abnormal state of the battery is latched by the first latch, and after a delay of a third predetermined time, according to the temperature of the battery and the battery
  • the voltage is again identified by the abnormal state of the battery.
  • a second aspect of the present invention provides a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the battery abnormality monitoring method described above.
  • the non-transitory computer readable storage medium of the embodiment of the present invention by performing the battery abnormality monitoring method described above, it is possible to determine whether the battery is currently abnormal due to damage due to sudden monitoring of whether the battery voltage is abrupt and the battery charging and discharging current, thereby It can monitor in real time when the battery is damaged, and latch the abnormal state of the battery, improve the monitoring accuracy, and realize timely reminding and repair, avoiding the safety hazard caused by battery abnormality, and thus greatly improving The security of the terminal device when it is used.
  • a third aspect of the present invention provides a battery abnormality monitoring system for a terminal device, including: a voltage mutation monitoring module, configured to monitor a battery voltage change of the terminal device in real time, and according to the battery Detecting whether a voltage abrupt phenomenon occurs in the battery of the terminal device; a charging current detecting module for detecting a charging current of the battery; a discharging current detecting module for detecting a discharging current of the battery; and a first latch a first control module, configured to determine, respectively, a charging current and a discharging current of the battery when a sudden change in voltage occurs in the battery, and the charging current of the battery is less than a preset charging current threshold or the When the discharge current of the battery is less than the preset discharge current threshold, it is determined that the battery is currently abnormal, and the first latch is controlled to latch the abnormal state of the battery.
  • the voltage sudden change monitoring module monitors the battery voltage change of the terminal device in real time to detect whether the battery of the terminal device has a sudden voltage change, and simultaneously detects the charging current detection module and the discharge current.
  • the module detects the charging current and the discharging current of the battery, so that when the battery has a sudden voltage change, the first control module separately determines the charging current and the discharging current of the battery, and the charging current of the battery is less than the preset charging current threshold or the battery.
  • the first control module determines that the sudden change of the battery voltage is not caused by the battery charging and discharging, but the positive and negative internal electrodes of the battery caused by external damage such as squeezing or puncture. Caused by a short circuit, therefore, it is judged that the battery is currently abnormal, and the abnormal state of the battery is latched by the first latch. Therefore, the present invention can detect whether the battery is abnormal due to damage in real time by monitoring whether the battery voltage is abrupt and the battery charge and discharge current, so that the battery can be monitored in real time when the battery is damaged, and the battery abnormal state is latched and improved. The monitoring accuracy and the timely reminding and repairing can be avoided to avoid the safety hazard caused by the abnormal battery, thereby greatly improving the safety of the terminal device.
  • the battery abnormality monitoring system of the terminal device according to the above embodiment of the present invention may further have the following additional technical features:
  • the method further includes a temperature detecting module, a voltage detecting module, and a second control module, wherein the first latch is further used to enable after latching an abnormal state of the battery
  • the temperature detecting module and the voltage detecting module so that the temperature detecting module detects a temperature of the battery and the voltage detecting module detects a voltage of the battery
  • the second control module is configured to be used according to the battery The temperature and the voltage of the battery re-identify the abnormal state of the battery.
  • the second control module is further configured to separately determine a temperature of the battery and a voltage of the battery, wherein if the temperature of the battery is less than a preset temperature threshold or If the voltage of the battery is less than the preset voltage threshold, it is determined that the battery does not currently have an abnormality; if the temperature of the battery is greater than or equal to the preset temperature threshold and the voltage of the battery is greater than or equal to the preset voltage threshold, determining the battery In an abnormal state.
  • the second latch and the third control module are further included, wherein the second latch keeps output when the second control module determines that the battery does not currently have an abnormality Not changing, so that the third control module resets the first latch to clear an abnormal state of the battery latched in the first latch; when the second control module determines the battery In an abnormal state, the second latch changes output and remains such that the third control module controls the first latch to maintain latching of an abnormal state of the battery.
  • the first delay module is further configured to delay the charging current signal of the battery by a first preset time.
  • the second delay module is further configured to output a battery abnormal state flag through the first latch after delaying the second preset time.
  • the third delay module is further configured to control the first latch by the third control module after delaying for a third preset time.
  • a fourth aspect of the present invention provides a terminal device including the battery abnormality monitoring system of the terminal device.
  • the battery abnormality monitoring system of the terminal device by the battery abnormality monitoring system of the terminal device, it is possible to determine whether the battery is abnormally damaged due to sudden change of the battery voltage and battery charging and discharging current, thereby enabling the battery to be subjected to abnormality.
  • the loss occurs, it can be monitored in real time, and the abnormal state of the battery is latched, the monitoring accuracy is improved, and the reminder and repair can be performed in time to avoid the safety hazard caused by the abnormal battery, thereby greatly improving the use of the terminal device.
  • Security by the battery abnormality monitoring system of the terminal device, it is possible to determine whether the battery is abnormally damaged due to sudden change of the battery voltage and battery charging and discharging current, thereby enabling the battery to be subjected to abnormality.
  • the fifth aspect of the present invention further provides a terminal device, where the terminal device includes a battery, and the terminal device further includes a memory, a processor, and is stored in the memory and can be The control program of the terminal device running on the processor, the step of implementing the battery abnormality monitoring method of the terminal device described above when the control program of the terminal device is executed by the processor.
  • the battery abnormality monitoring method of the terminal device described above is executed by the processor, and it is possible to determine whether the battery is abnormally damaged due to sudden change of the battery voltage and battery charging and discharging current in real time, thereby enabling When the battery is damaged, it can be monitored in real time, and the battery abnormal state is latched, which improves the monitoring accuracy, and can realize timely reminding and repairing, avoiding the safety hazard caused by the battery abnormality, thereby greatly improving the terminal.
  • FIG. 1 is a schematic view showing a battery damage process according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a battery abnormality monitoring method of a terminal device according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a voltage detection and current detection circuit in accordance with one embodiment of the present invention.
  • FIG. 4 is a schematic diagram showing a comparison of voltage monitoring curves of a damaged battery and a normal battery according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of reminder information of a mobile terminal according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing a battery abnormality monitoring system of a terminal device according to an embodiment of the present invention.
  • FIG. 7 is a block diagram showing a battery abnormality monitoring system of a terminal device according to an embodiment of the present invention.
  • FIG. 8 is a block diagram of a terminal device according to an embodiment of the present invention.
  • the battery abnormality monitoring method of the terminal device Before describing the battery abnormality monitoring method of the terminal device, the battery abnormality monitoring system of the terminal device, and the terminal device, the following describes the battery structure in the terminal device and its possible security risks.
  • lithium-ion batteries are mainly composed of a battery cell and a battery protection system.
  • the battery cell is called the "heart" of a lithium-ion battery, and contains a positive and negative electrode material, an electrolyte, a separator, and a casing, and the battery is external. Protection System.
  • the positive electrode material of the battery cell is a lithium molecule material such as lithium manganate or lithium cobalt oxide, which determines the energy of the battery, and the negative electrode material is graphite.
  • the separator is placed between the positive and negative electrodes of the battery. Generally speaking, the separator is like a kind of paper, which is folded in a small battery box. The separator is filled with positive and negative materials and electrolyte.
  • the external electric field activates the lithium molecules in the positive electrode material to the negative electrode and stores them in the voids of the graphite carbon structure. The more lithium molecules are driven, the more energy is stored.
  • the lithium ions in the negative electrode are driven to the positive electrode. Lithium ions become lithium molecules in the original cathode material, so that the battery is charged and discharged.
  • the separator is mainly used to completely separate the positive and negative materials of the cell. Once the positive and negative electrodes are in direct contact, the internal short circuit of the battery will occur, which brings certain safety hazards, so the separator should not be too thin. Too thin can easily cause damage to the separator.
  • manufacturers are beginning to look for batteries with higher energy density. For example, by filling more positive and negative materials to increase the energy density of the battery, but in the same volume, the more positive and negative materials are filled, the separator becomes thinner and thinner, and the battery is subjected to external impact and extrusion. When the puncture or other damage occurs, it is easy to cause damage to the separator, which may cause a short circuit inside the battery.
  • lithium ions may accumulate in the positive and negative electrodes, and when it accumulates, it will produce a crystal branch like the crystal we see a lot of things, and the crystal branch will slowly Lengthening, in this process, it is possible to pierce the separator to cause an internal short circuit of the battery, and the above-described example shows the case where the battery is temporarily short-circuited and then restored to the original state due to external mechanical damage. More obvious, it is easier to cause the internal short circuit of the battery to occur again.
  • the so-called fast charge is the process of fast charging the secondary rechargeable battery.
  • the charging process of the battery may include one or more of a trickle charging phase, a constant current charging phase, and a constant voltage charging phase.
  • the current feedback loop can be utilized such that the current entering the battery during the trickle charge phase meets the expected charge current of the battery (eg, the first charge current), for example, when the voltage is below 3.0V, 100mA is used.
  • the charging current precharges the battery.
  • the current feedback loop can be utilized such that the current entering the battery during the constant current charging phase satisfies the magnitude of the charging current expected by the battery (eg, the second charging current, which can be greater than the first charging current), such as
  • the charging current can vary from 0.1 C to several C, where C refers to the battery capacity.
  • standard charging is charging with a charging current of 0.1 C, and fast charging means charging at a current of more than 0.1 C at this stage to complete charging in a short time.
  • the voltage feedback loop can be used to make the voltage applied to both ends of the battery during the constant voltage charging phase satisfy the expected charging voltage of the battery, for example, when the battery voltage is equal to 4.2V, enter the constant voltage charging phase, this stage
  • the charging voltage is constant at 4.2V.
  • the charging current will become smaller and smaller.
  • the charging current is less than 100mA, the battery can be judged to be full.
  • the charging current in the constant current charging phase, since the charging current is relatively large, for example, the charging current can be 0.2C to 0.8C, and some can even reach 1C, and the charging process of the battery is an electrochemical reaction process, which is inevitably accompanied by heat.
  • the isolation film is damaged, it is easy to cause a short circuit between the positive and negative electrodes. Once the short circuit occurs, more heat is generated and the electrolyte is vaporized.
  • the internal pressure of the battery core increases. When the air pressure reaches a certain level, the strength of the outer casing cannot withstand, the outer casing will crack, causing an explosion, and a battery fire will occur when an open flame is encountered.
  • the battery has an internal short circuit, it indicates that the battery is abnormal. At this time, the battery has certain safety hazards, which may cause a safety accident during use.
  • the inventors of the present application have found that the voltage of the battery is relatively stable under normal use conditions based on continuous research and experiments on the battery for many years, but when the battery is damaged, a short circuit may occur inside the battery. The battery voltage will suddenly drop, and this voltage abrupt signal is very strong. The inventors have also verified the existence of this voltage abrupt phenomenon through a large number of experiments. Therefore, from the test results, as long as the battery is damaged, a signal with a sudden change in voltage will appear.
  • this application proposes an effective abnormal monitoring method for whether the battery is abnormal.
  • terminal device used in the embodiments of the present invention may include, but is not limited to, being configured to be connected via a wire line (such as via a public switched telephone network (PSTN), digital subscriber line (DSL), digital Cable, direct cable connection, and/or another data connection/network) and/or via (eg for cellular networks, wireless local area networks (WLANs), digital television networks such as DVB-H networks, satellite networks, AM-FM broadcasts
  • a wire line such as via a public switched telephone network (PSTN), digital subscriber line (DSL), digital Cable, direct cable connection, and/or another data connection/network
  • WLANs wireless local area networks
  • digital television networks such as DVB-H networks
  • satellite networks satellite networks
  • AM-FM broadcasts A means for receiving/transmitting a communication signal by a transmitter, and/or a wireless interface of another communication terminal.
  • a terminal configured to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal”, and/or a “mobile terminal.”
  • mobile terminals include, but are not limited to, satellite or cellular telephones; personal communication system (PCS) terminals that can combine cellular radiotelephone with data processing, fax, and data communication capabilities; can include radiotelephone, pager, Internet/internet access , a web browser, a memo pad, a calendar, and/or a PDA of a global positioning system (GPS) receiver; and conventional laptop and/or palm-sized receivers or other electronic devices including radiotelephone transceivers.
  • PCS personal communication system
  • GPS global positioning system
  • FIG. 2 is a flowchart of a battery abnormality monitoring method of a terminal device according to an embodiment of the present invention. As shown in FIG. 2, the battery abnormality monitoring method of the terminal device may include the following steps:
  • the voltage abrupt monitoring module can be used to detect whether a battery has a sudden voltage change.
  • the battery voltage variation can be monitored in real time through a differential amplifying circuit, which may include resistors R1 and R2, a capacitor C1, and a differential amplifier X1, wherein one end of the resistor R2 is connected to the positive pole of the battery, and the resistor The other end of R2 is connected to the negative input terminal of the differential amplifier.
  • the resistor R1 and the capacitor C1 form an RC voltage regulator filter circuit.
  • One end of the resistor R1 is connected to the negative input terminal of the differential amplifier X1, the other end of the resistor R1 is grounded, and the capacitor C1 and the resistor are connected.
  • the differential amplifier circuit can realize real-time monitoring of the battery voltage change, and can judge whether the battery voltage is abrupt according to the output signal of the differential amplifier circuit.
  • the charging current of the battery can be obtained by detecting the current of the charging circuit of the battery, and the current of the discharging circuit of the battery can be detected to obtain the discharging current of the battery, wherein the charging current of the battery It is monitored during the charging process of the terminal device, and the discharge current of the battery can be monitored during the operation of the terminal device.
  • the present invention captures the voltage.
  • the occurrence of the fall determines whether the battery is currently abnormal.
  • the voltage drop may also be caused by battery charging and discharging. For example, when the system load draws current from the battery, the battery voltage will also fall, or the battery is charging. If the charging current disappears, the battery voltage will also drop, so this The invention detects the voltage abrupt phenomenon of the battery while detecting the charge and discharge current of the battery, thereby being able to accurately determine whether the battery is abnormal at present.
  • the discharge current of the battery can be detected by the discharge current detecting module.
  • the discharge current detecting module may include: an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a third comparator X3, an eleventh resistor R11, and a fourth comparator X4.
  • one end of the eighth resistor R8 is connected to the negative pole of the battery, the other end of the eighth resistor R8 is connected to the positive pole of the battery through a system load, and the eighth resistor R8 is a current detecting resistor; one end of the ninth resistor R9 and the eighth resistor R8 One end of the tenth resistor R10 is connected to the other end of the eighth resistor R8, the negative input terminal of the third comparator X3 is connected to the other end of the ninth resistor R9, and the positive input terminal of the third comparator X3 is connected The other end of the ten resistor R10 is connected, and the eleventh resistor R11 is connected between the negative input terminal and the output terminal of the third comparator X3; the positive input terminal of the fourth comparator X4 is connected to the output terminal of the third comparator X3.
  • the negative input terminal of the fourth comparator X4 is connected to the reference voltage supply terminal, and the output terminal of the fourth comparator X4 outputs a discharge current detection signal to determine whether the discharge current of the battery is less than a preset discharge current threshold according to the discharge current detection signal.
  • the discharge current detecting module detects the discharge current of the battery through the current detecting resistor R8, so that when the battery voltage is suddenly detected by the differential amplifying circuit, if the battery discharging current flowing through the current detecting resistor R8 is greater than or equal to the preset discharging current Threshold, it can be judged that the sudden change of the battery voltage is because the voltage of the system load is instantaneously dropped from the current drawn by the battery, and the voltage is not instantaneously dropped by the damage of the battery; when the battery voltage is suddenly detected by the differential amplifier circuit, if the current is changed If the battery discharge current of the overcurrent resistor R8 is less than the preset discharge current threshold, it is judged that the current drawn by the system load from the battery is insufficient to cause the voltage to drop.
  • the positive input terminal voltage of the fourth comparator X4 is smaller than the reference voltage of the negative input terminal, and the fourth The comparator X4 outputs a low level, and it can be judged that the sudden change of the battery voltage is not because the voltage of the system load is instantaneously dropped from the current drawn by the battery, but the voltage caused by the damage of the battery is instantaneously dropped.
  • the preset discharge current threshold may be 30 mA.
  • the charging current of the battery is less than the preset charging current threshold, it can also be judged whether the sudden change of the battery voltage is caused by the charging of the battery or caused by the damage of the battery, and will not be described in detail here.
  • the charging current of the battery is less than the preset charging current threshold or the discharging current of the battery is less than the preset discharging current threshold, it is determined that the battery is currently abnormal, and the battery is passed through the first latch. The abnormal state is latched.
  • the preset charging current threshold and the preset discharging current threshold can be calibrated according to actual conditions.
  • the present invention by detecting the charging current and the discharging current of the battery, when the battery has a sudden voltage change, if the charging current of the battery is greater than or equal to the preset charging current threshold I Charge or the discharging current of the battery is greater than or equal to The preset discharge current threshold I Discharge is considered to be caused by battery charge and discharge.
  • the charging current signal also disappears when the charging current disappears, it is necessary to delay the charging current signal.
  • delaying the charging current signal of the battery by a first preset time wherein the first preset time may be specific The situation is calibrated.
  • the battery voltage drops, and the charging current of the battery is less than the preset charging current threshold I Charge or the discharging current of the battery is less than the preset discharging current threshold I Discharge , it is determined that the battery voltage is dropped to the battery damage, and the battery can be checked.
  • the manner of the table to determine that the battery voltage drop is caused by the damage of the battery determine that the battery is currently abnormal, and the abnormal state of the battery is damaged by the first latch.
  • the inventors have found through extensive tests and experiments that the voltage of the battery is relatively stable during normal use, but once the battery is subjected to external mechanical damage such as dropping, impacting, squeezing, puncture, etc. At this point, the battery voltage will be abrupt. Therefore, the battery abnormality monitoring method of the terminal device according to the embodiment of the present invention monitors the charging and discharging current of the battery while monitoring whether the battery has a sudden voltage change phenomenon, so that when the battery voltage jumps, if the charging current or the discharging current of the battery respectively If the change is subtle, it is judged that the battery is damaged at this time, an internal short circuit occurs, and it is judged that the battery is abnormal at present, and there is a certain safety hazard.
  • the preset value may be greater than or equal to 10 mV.
  • the battery for example, the battery is 5mA-6mA output
  • the battery has a voltage drop of more than 10mV due to damage.
  • the first preset time can be calibrated in milliseconds, for example, 0.1-5 milliseconds.
  • the curve 1 indicates the voltage change curve when the battery is slightly damaged
  • the curve 2 indicates the voltage change curve when the battery is seriously damaged
  • the curve 3 indicates the voltage change curve when the battery does not receive the damage normally. It can be seen from curve 1 that when the battery is slightly damaged, the battery voltage instantaneously changes from 3.8V to 3.63V and then recovers to about 3.8V. From curve 2, when the battery is seriously damaged, the battery voltage instantaneously changes from 3.8V to 3.51V. It recovers to nearly 3.8V. It can be seen from curve 3 that the battery voltage is basically stable at 3.8V when the battery is not damaged normally.
  • curve 1, curve 2 and curve 3 it can be known that the battery is damaged by external mechanical damage, for example, Impact, extrusion, puncture, etc., at this time, the battery voltage will be abrupt, that is, an instantaneous drop occurs, and the magnitude of the voltage drop is different depending on the degree of damage.
  • the present invention detects the voltage drop of the battery instantaneously. To monitor whether the battery is currently damaged, and once the battery voltage is detected to fall instantaneously, it is necessary to further determine the charge and discharge current of the battery, and it can be determined that the battery may be damaged at this time, and an internal short circuit occurs.
  • the battery voltage is abruptly caused by the sudden change of the battery voltage.
  • the battery charge and discharge current is also monitored. If the charge and discharge current of the battery changes slightly, the battery is currently affected. An abnormality occurs in the loss, and there is a safety hazard.
  • the battery abnormality monitoring method of the terminal device detects the battery charge and discharge current by detecting whether the battery voltage suddenly jumps, thereby accurately determining whether the battery is abnormal or not, and thereby being able to When the loss occurs, it can be monitored in real time, and timely reminders and repairs can be realized to avoid the safety hazard caused by the abnormal battery, and the safety of the terminal device is greatly improved.
  • the temperature detecting module and the voltage detecting module in the terminal device are also enabled through the first latch, so that the temperature detecting module
  • the temperature and voltage detecting module of the detecting battery detects the voltage of the battery to recognize the abnormal state of the battery according to the temperature of the battery and the voltage of the battery.
  • the load draws a small current from the battery (less than the preset discharge current threshold I Discharge ) or a small charging current (less than the pre-charge) Setting the charging current threshold I Charge ) disappears, which may also cause a sudden voltage change in the battery. Therefore, in the embodiment of the present invention, in order to improve the monitoring accuracy and prevent erroneous judgment, after the abnormal state of the battery is latched by the first latch, it is necessary to judge the temperature of the battery and the voltage of the battery. Reconfirm whether the battery is currently abnormal.
  • the abnormal state of the battery is re-identified according to the temperature of the battery and the voltage of the battery, including: determining a temperature of the battery and a voltage of the battery, respectively; If the temperature of the battery is less than a preset temperature threshold or the voltage of the battery is less than a preset voltage threshold, determining that the battery does not currently have an abnormality; if the temperature of the battery is greater than or equal to a preset temperature threshold and the battery If the voltage is greater than or equal to the preset voltage threshold, it is determined that the battery is in an abnormal state.
  • the voltage detecting module detects whether the voltage before the battery falls is greater than The preset voltage threshold V before (the voltage detecting module includes a voltage holding circuit capable of maintaining the voltage information before the voltage is dropped), and the temperature detecting module detects whether the temperature of the battery is greater than a preset temperature threshold T Bat , so that the voltage of the battery is less than
  • the voltage threshold V before or the temperature of the battery is less than the preset temperature threshold T Bat , it is considered that the battery voltage drop is caused by the excessive internal resistance of the battery, and the first latch needs to be reset; and the voltage of the battery is greater than or equal to the preset.
  • the voltage threshold V before and the temperature of the battery is greater than or equal to the preset temperature threshold T Bat , it is considered that the battery voltage drop is confirmed due to battery damage, and the output of the first latch is kept unchanged, and it
  • the first latch is reset to The abnormal state of the battery latched in the first latch is cleared. And re-identifying the abnormal state of the battery according to the temperature of the battery and the voltage of the battery to determine that the battery is in an abnormal state, maintaining an abnormal state of the battery by the first latch Latch.
  • the battery is abnormally output through the first latch.
  • Status flag is used for system detection of the terminal device, so as to perform subsequent actions according to the flag bit, for example, limiting the use of the battery.
  • the terminal device when the battery abnormal state flag is detected, the terminal device is also controlled to issue a reminder message that the battery is abnormal, and the abnormal battery can also be marked.
  • the user when it is detected that the battery is abnormal, the user needs to be reminded.
  • you can pass the reminder message "Battery safety message: Dear customer, your battery is currently in an abnormal state due to damage, for your safe use, please go to *** customer service The outlet performs inspection and maintenance, thank you!” Remind the user; as another example, when the user is reminded by the reminder information shown in FIG. 5, the user can also be reminded by blinking the indicator light on the terminal device.
  • a faster frequency control indicator emits a red flash; as yet another example, the user can also be alerted by a voice announcement function in the terminal device.
  • the fault level when the battery abnormal state flag is detected, the fault level may be divided according to the sudden change of the battery voltage, and the corresponding function of the terminal device is restricted according to the fault level.
  • the fault level can be divided according to the voltage amplitude of the battery voltage instantaneously falling.
  • the smaller the power consumption of the application in the terminal device the smaller the amount of heat generated when the battery is used, for example, only the chat tool is turned on and the video chat is not performed, and the battery power consumption is small.
  • the battery generates less heat, and the battery is less likely to be dangerous.
  • the application consumes a large amount of power, such as watching videos, playing games, etc.
  • the battery consumes a large amount of power, and the battery generates a large amount of heat. It is prone to security incidents. Therefore, when it is judged that the battery is abnormal, if the fault level is a general level, the use of video software and game software that consumes a large amount of power is prohibited.
  • the fault level is a serious severity level and a severity level, It is forbidden to start the whole system to prevent a safety accident, and display on the display screen of the terminal device that “the battery has potential safety hazard and prohibit the system from starting. Please go to the customer service outlet of *** for inspection and maintenance, thank you for your cooperation!”, to the user Remind; if the fault level is the full fault level, the battery is disabled, the system is shut down, and it cannot be started.
  • the abnormal state of the battery is latched by the first latch, and after a delay of the third predetermined time, the abnormal state of the battery is performed according to the temperature of the battery and the voltage of the battery. Identify again.
  • the first latch can also be reset by an external command to clear the battery abnormal state flag.
  • the battery abnormality monitoring method of the terminal device monitors the battery voltage change condition of the terminal device in real time, and detects whether the battery of the terminal device has a sudden voltage change according to the battery voltage change condition, and simultaneously passes Detecting the charging current and discharging current of the battery, so that when the battery voltage is abrupt, if the charging current of the battery is less than the preset charging current threshold or the discharging current of the battery is less than the preset discharging current threshold, it is determined that the battery voltage is not changed at this time.
  • the battery is caused by charge and discharge, but the battery is caused by external damage such as squeezing or puncturing, and the battery is short-circuited by the positive and negative electrodes.
  • the battery is abnormally present and the abnormal state of the battery is performed by the first latch. Latch. Therefore, the present invention can detect whether the battery is abnormal due to damage in real time by monitoring whether the battery voltage is abrupt and the battery charge and discharge current, so that the battery can be monitored in real time when the battery is damaged, and the battery abnormal state is latched and improved. The monitoring accuracy and the timely reminding and repairing can be avoided to avoid the safety hazard caused by the abnormal battery, thereby greatly improving the safety of the terminal device.
  • embodiments of the present invention also provide a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the battery abnormality monitoring method described above.
  • the non-transitory computer readable storage medium of the embodiment of the present invention by performing the battery abnormality monitoring method described above, it is possible to determine whether the battery is currently abnormal due to damage due to sudden monitoring of whether the battery voltage is abrupt and the battery charging and discharging current, thereby It can monitor in real time when the battery is damaged, and latch the abnormal state of the battery, improve the monitoring accuracy, and realize timely reminding and repair, avoiding the safety hazard caused by battery abnormality, and thus greatly improving The security of the terminal device when it is used.
  • FIG. 6 is a block diagram showing a battery abnormality monitoring system of a terminal device according to an embodiment of the present invention.
  • the battery abnormality monitoring system 100 of the terminal device includes: a voltage sudden monitoring module 110, a charging current detecting module 120, a discharging current detecting module 130, a first latch 140, and a first control module 150.
  • the voltage abrupt monitoring module 110 is configured to monitor the battery voltage change of the terminal device in real time, and detect whether the battery of the terminal device has a sudden voltage change according to the battery voltage change condition
  • the charging current detecting module 120 is configured to detect the charging current of the battery.
  • the discharge current detecting module 130 is configured to detect a discharge current of the battery
  • the first control module 150 is configured to determine, respectively, a charging current and a discharging current of the battery when the battery has a sudden voltage change phenomenon, and When the charging current of the battery is less than the preset charging current threshold or the discharging current of the battery is less than the preset discharging current threshold, determining that the battery is currently abnormal, and controlling the abnormality of the first latch 140 to the battery The state is latched.
  • the battery voltage variation can be monitored in real time through a differential amplifying circuit, which may include resistors R1 and R2, a capacitor C1, and a differential amplifier X1, wherein one end of the resistor R2 is connected to the positive pole of the battery, and the resistor The other end of R2 is connected to the negative input terminal of the differential amplifier.
  • the resistor R1 and the capacitor C1 form an RC voltage regulator filter circuit.
  • One end of the resistor R1 is connected to the negative input terminal of the differential amplifier X1, the other end of the resistor R1 is grounded, and the capacitor C1 and the resistor are connected.
  • R1 is connected in parallel, and the positive input of differential amplifier X1 is also connected to the positive terminal of the battery.
  • the differential amplifier circuit can realize real-time monitoring of the battery voltage change, and can judge whether the battery voltage is abrupt according to the output signal of the differential amplifier circuit.
  • the charging current detecting module 120 can obtain the charging current of the battery by detecting the current of the charging circuit of the battery, and the discharging current detecting module 130 can detect the current of the discharging circuit of the battery to obtain the battery.
  • the discharge current wherein the charging current of the battery is monitored during charging of the terminal device, and the discharge current of the battery may be monitored during operation of the terminal device.
  • the present invention captures the voltage.
  • the occurrence of the fall determines whether the battery is currently abnormal.
  • the voltage drop may also be caused by battery charging and discharging. For example, when the system load draws current from the battery, the battery voltage will also fall, or the battery is charging. If the charging current disappears, the battery voltage will also drop, so this The invention detects the voltage abrupt phenomenon of the battery while detecting the charge and discharge current of the battery, thereby being able to accurately determine whether the battery is abnormal at present.
  • the present invention by detecting the charging current and the discharging current of the battery, when the battery has a sudden voltage change, if the charging current of the battery is greater than or equal to the preset charging current threshold I Charge or the discharging current of the battery is greater than or equal to the preset.
  • the discharge current threshold I Discharge is considered to be caused by battery charge and discharge.
  • the battery abnormality monitoring system of the terminal device further includes a first delay module 160 configured to delay the charging current signal of the battery by using a first preset. Time, wherein the first preset time can be calibrated according to specific conditions.
  • the first control module 150 determines that the battery voltage drops to the battery damage. It can be judged by means of look-up table that the battery voltage drop is caused by the damage of the battery, and it is judged that the battery is abnormal at present, and the abnormal state of the battery being damaged by the first latch 140 is latched.
  • the battery abnormality monitoring system of the terminal device further includes a temperature detecting module 170, a voltage detecting module 180, and a second control module 190, wherein the first latch 140 is After the abnormal state of the battery is latched, the temperature detecting module 170 and the voltage detecting module 180 are further enabled, so that the temperature detecting module 170 detects the temperature of the battery and the voltage detecting module. 180 detects the voltage of the battery, and the second control module 190 is configured to re-identify the abnormal state of the battery according to the temperature of the battery and the voltage of the battery.
  • the second control module is further configured to determine, respectively, a temperature of the battery and a voltage of the battery, wherein if the temperature of the battery is less than a preset temperature threshold or the voltage of the battery is less than a preset The voltage threshold determines that the battery is not abnormal at present; if the temperature of the battery is greater than or equal to a preset temperature threshold and the voltage of the battery is greater than or equal to a preset voltage threshold, determining that the battery is in an abnormal state.
  • the load draws a small current from the battery (less than the preset discharge current threshold I Discharge ) or a small charging current (less than the pre-charge) Setting the charging current threshold I Charge ) disappears, which may also cause a sudden voltage change in the battery. Therefore, in the embodiment of the present invention, in order to improve the monitoring accuracy and prevent erroneous judgment, after the abnormal state of the battery is latched by the first latch, it is necessary to judge the temperature of the battery and the voltage of the battery. Reconfirm whether the battery is currently abnormal.
  • the battery abnormality monitoring system of the terminal device further includes a second latch 210 and a third control module 220, wherein when the second control module determines the When the battery does not currently have an abnormality, the second latch keeps the output unchanged, so that the third control module resets the first latch to clear the latch in the first latch An abnormal state of the battery; when the second control module determines that the battery is in an abnormal state, the second latch changes an output and holds, so that the third control module controls the first latch to remain Latching the abnormal state of the battery.
  • the voltage detecting module detects whether the voltage before the battery falls is greater than The preset voltage threshold V before (the voltage detecting module includes a voltage holding circuit capable of maintaining the voltage information before the voltage is dropped), and the temperature detecting module detects whether the temperature of the battery is greater than a preset temperature threshold T Bat , so that the voltage of the battery is less than
  • the voltage threshold V before or the temperature of the battery is less than the preset temperature threshold T Bat , it is considered that the battery voltage drop is caused by the excessive internal resistance of the battery, and the first latch needs to be reset; and the voltage of the battery is greater than or equal to the preset.
  • the voltage threshold V before and the temperature of the battery is greater than or equal to the preset temperature threshold T Bat , it is considered that the battery voltage drop is confirmed due to battery damage, and the output of the first latch is kept unchanged, and it
  • the battery abnormality monitoring system of the terminal device further includes a second delay module 230, configured to pass the second after a second preset time delay.
  • a latch 140 outputs a battery abnormal state flag.
  • the output battery abnormal state flag is used for system detection of the terminal device, so as to perform subsequent actions according to the flag bit, for example, limiting the use of the battery.
  • the battery abnormality monitoring system of the terminal device further includes a third delay module 240, configured to pass the third control after delaying a third preset time.
  • Module 220 controls the first latch.
  • the battery abnormality monitoring system of the terminal device of the embodiment of the present invention detects the battery charge and discharge current by detecting whether the battery voltage suddenly jumps, and detects the battery voltage and the battery after determining that the battery is abnormal.
  • the temperature verifies the abnormal state of the battery, so that it can accurately determine whether the battery is abnormal or not, and then it can be monitored in real time when the battery is damaged, so as to timely remind and repair, to avoid the safety hazard caused by abnormal battery. , greatly improving the security of the terminal device when used.
  • the terminal device when the battery abnormal state flag is detected, the terminal device also issues a reminder message that the battery is abnormal.
  • the user when it is detected that the battery is abnormal, the user needs to be reminded.
  • you can pass the reminder message "Battery safety message: Dear customer, your battery is currently in an abnormal state due to damage, for your safe use, please go to *** customer service
  • the outlet performs inspection and repair, thank you!” Remind the user; as another example, when the user is reminded by the reminder information shown in FIG. 5, the user may also blink through the indicator light on the terminal device, for example, the mobile terminal. Remind, for example, that the indicator light flashes red at a faster frequency; as another example, the user can be alerted by the voice announcement function in the terminal device.
  • the fault level when the battery abnormal state flag is detected, the fault level may be further divided according to the sudden change of the battery voltage, and the corresponding function of the terminal device is restricted according to the fault level. .
  • the fault level can be divided according to the voltage amplitude of the battery voltage instantaneously falling.
  • the smaller the power consumption of the application in the terminal device the smaller the amount of heat generated when the battery is used, for example, only the chat tool is turned on and the video chat is not performed, and the battery power consumption is small.
  • the battery generates less heat, and the battery is less likely to be dangerous.
  • the application consumes a large amount of power, such as watching videos, playing games, etc.
  • the battery consumes a large amount of power, and the battery generates a large amount of heat. It is prone to security incidents. Therefore, when it is judged that the battery is abnormal, if the fault level is a general level, the use of video software and game software that consumes a large amount of power is prohibited.
  • the fault level is a serious severity level and a severity level, It is forbidden to start the whole system to prevent a safety accident, and display on the display screen of the terminal device that “the battery has potential safety hazard and prohibit the system from starting. Please go to the customer service outlet of *** for inspection and maintenance, thank you for your cooperation!”, to the user Remind; if the fault level is the full fault level, the battery is disabled, the system is shut down, and the start is disabled.
  • the voltage sudden change monitoring module monitors the battery voltage change of the terminal device in real time to detect whether the battery of the terminal device has a sudden voltage change, and simultaneously detects the charging current detection module and the discharge current.
  • the module detects the charging current and the discharging current of the battery, so that when the battery has a sudden voltage change, the first control module separately determines the charging current and the discharging current of the battery, and the charging current of the battery is less than the preset charging current threshold or the battery.
  • the first control module determines that the sudden change of the battery voltage is not caused by the battery charging and discharging, but the positive and negative internal electrodes of the battery caused by external damage such as squeezing or puncture. Caused by a short circuit, therefore, it is judged that the battery is currently abnormal, and the abnormal state of the battery is latched by the first latch. Therefore, the present invention can detect whether the battery is abnormal due to damage in real time by monitoring whether the battery voltage is abrupt and the battery charge and discharge current, so that the battery can be monitored in real time when the battery is damaged, and the battery abnormal state is latched and improved. The monitoring accuracy and the timely reminding and repairing can be avoided to avoid the safety hazard caused by the abnormal battery, thereby greatly improving the safety of the terminal device.
  • an embodiment of the present invention also proposes a terminal device 10 including the above-described battery abnormality monitoring system 100 of the terminal device.
  • the battery abnormality monitoring system of the terminal device by the battery abnormality monitoring system of the terminal device, it is possible to determine whether the battery is abnormally damaged due to sudden change of the battery voltage and battery charging and discharging current, thereby enabling the battery to be subjected to abnormality.
  • the loss occurs, it can be monitored in real time, and the abnormal state of the battery is latched, the monitoring accuracy is improved, and the reminder and repair can be performed in time to avoid the safety hazard caused by the abnormal battery, thereby greatly improving the use of the terminal device.
  • Security by the battery abnormality monitoring system of the terminal device, it is possible to determine whether the battery is abnormally damaged due to sudden change of the battery voltage and battery charging and discharging current, thereby enabling the battery to be subjected to abnormality.
  • the embodiment of the present invention further provides a terminal device, where the terminal device includes a battery, and the terminal device further includes a memory, a processor, and is stored on the memory and operable on the processor. a control program of the terminal device, wherein the control program of the terminal device is executed by the processor to implement the step of the battery abnormality monitoring method of the terminal device.
  • the battery abnormality monitoring method of the terminal device described above is executed by the processor, and it is possible to determine whether the battery is abnormally damaged due to sudden change of the battery voltage and battery charging and discharging current in real time, thereby enabling When the battery is damaged, it can be monitored in real time, and the battery abnormal state is latched, which improves the monitoring accuracy, and can realize timely reminding and repairing, avoiding the safety hazard caused by the battery abnormality, thereby greatly improving the terminal.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements, unless otherwise specified Limited.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

一种终端设备及其电池异常监控方法和监控系统，其中，电池异常监控方法包括以下步骤：实时监控所述终端设备的电池电压变化情况，并根据所述电池电压变化情况检测所述终端设备的电池是否发生电压突变现象；检测所述电池的充电电流和放电电流；当所述电池发生电压突变现象时，如果所述电池的充电电流小于预设充电电流阈值或者所述电池的放电电流小于预设放电电流阈值，则判断所述电池当前发生异常，并通过第一锁存器对所述电池的异常状态进行锁存，从而通过监控电池电压是否突变和电池充放电电流来监测电池是否因受到外界损伤而存在异常，以便及时提醒和送修，从而避免因电池异常带来的安全隐患。

Description

终端设备及其电池异常监控方法和监控系统 技术领域
本发明涉及终端设备技术领域，特别涉及一种终端设备的电池异常监控方法、一种终端设备的电池异常监控系统以及一种终端设备。
背景技术
电池是终端设备的动力之源，为终端设备例如手机提供长时间稳定供电。最早用于移动终端的电池为镍铬电池和镍氢电池，但是随着移动终端屏幕的增大、功能的增强等，镍铬电池和镍氢电池的容量已经无法满足能量需求，而锂离子电池由于具有较多的优点，例如，能量密度高，所以能够做的比较轻巧且容量比较大，充放电速度比较快，并且与镍铬、镍氢电池相比，不具有记忆效应，且对环境的元素损害也是最小的，所以逐渐取代了传统的镍铬电池和镍氢电池。
虽然锂离子电池的出现有效解决了电池容量的问题，但是也存在一定的安全性问题，例如，当锂离子电池受损引起短路时，会导致电芯内部产生热，而当该热量产生过快时，很可能出现电池起火、炸裂的情况，因此，需要对电池进行安全监测，以防止事故发生。
发明内容
本发明旨在至少在一定程度上解决上述技术中的技术问题之一。为此，本发明的第一个目的在于提出一种终端设备的电池异常监控方法，通过监控电池电压是否突变和电池充放电电流来监测电池是否因受到外界损伤而存在异常，以便及时提醒和送修，从而避免因电池异常带来的安全隐患。
本发明的第二个目的在于提出一种非临时性计算机可读存储介质。
本发明的第三个目的在于提出一种终端设备的电池异常监控系统。
本发明的第四个目的在于提出一种终端设备。
本发明的第五个目的在于还提出一种终端设备。
为达到上述目的，本发明第一方面实施例提出的一种终端设备的电池异常监控方法，包括以下步骤：实时监控所述终端设备的电池电压变化情况，并根据所述电池电压变化情况检测所述终端设备的电池是否发生电压突变现象；检测所述电池的充电电流和放电电流；当所述电池发生电压突变现象时，如果所述电池的充电电流小于预设充电电流阈值或者所述电池的放电电流小于预设放电电流阈值，则判断所述电池当前发生异常，并通过第一锁存器对所述电池的异常状态进行锁存。
根据本发明实施例的终端设备的电池异常监控方法，通过实时监控终端设备的电池电压变化情况，并根据电池电压变化情况来检测终端设备的电池是否发生电压突变现象，同时通过检测电池的充电电流和放电电流，这样在电池发生电压突变现象时，如果电池的充电电流小于预设充电电流阈值或者电池的放电电流小于预设放电电流阈值，则判断此时电池电压突变不是由电池充放电引起的，而是电池因受到外界损伤例如挤压、刺破等导致的电池内部正负极短路引起的，因此电池当前发生异常，并通过第一锁存器对电池的异常状态进行锁存。因此本发明通过实时监控电池电压是否突变和电池充放电电流来判断电池当前是否因受损而发生异常，从而能够在电池受损时就能实时监控到，并对电池异常状态进行锁存，提高了监控精度，并能够实现及时进行提醒和送修，避免因电池异常带来的安全隐患，进而大大提高了终端设备使用时的安全性。
另外，根据本发明上述实施例提出的终端设备的电池异常监控方法还可以具有如下附加的技术特征：
根据本发明的一个实施例，在通过所述第一锁存器对所述电池的异常状态进行锁存后，还通过所述第一锁存器使能所述终端设备中的温度检测模块和电压检测模块，以便所述温度检测模块检测所述电池的温度和所述电压检测模块检测所述电池的电压，以根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别。
根据本发明的一个实施例，根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别，包括：分别对所述电池的温度和所述电池的电压进行判断；如果所述电池的温度小于预设温度阈值或所述电池的电压小于预设电压阈值，则判断所述电池当前并未发生异常；如果所述电池的温度大于等于预设温度阈值且所述电池的电压大于等于预设电压阈值，则判断所述电池处于异常状态。
根据本发明的一个实施例，在根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别以判断所述电池当前并未发生异常时，将所述第一锁存器进行复位，以清除所述第一锁存器中锁存的电池的异常状态。
根据本发明的一个实施例，在根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别以判断所述电池处于异常状态时，保持所述第一锁存器对所述电池的异常状态的锁存。
根据本发明的一个实施例，在判断所述电池的充电电流是否小于预设充电电流阈值之前，还对所述电池的充电电流信号进行延时第一预设时间。
根据本发明的一个实施例，在所述第一锁存器对所述电池的异常状态进行锁存之后，并延时第二预设时间后，再通过所述第一锁存器输出电池异常状态标志位。
根据本发明的一个实施例，在通过所述第一锁存器对所述电池的异常状态进行锁存后， 并延时第三预设时间后，再根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别。
为达到上述目的，本发明第二方面实施例提出了一种非临时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述的电池异常监控方法。
根据本发明实施例的非临时性计算机可读存储介质，通过执行上述的电池异常监控方法，能够通过实时监控电池电压是否突变和电池充放电电流来判断电池当前是否因受损而发生异常，从而能够在电池受损时就能实时监控到，并对电池异常状态进行锁存，提高了监控精度，并能够实现及时进行提醒和送修，避免因电池异常带来的安全隐患，进而大大提高了终端设备使用时的安全性。
为达到上述目的，本发明第三方面实施例提出了一种终端设备的电池异常监控系统，包括：电压突变监控模块，用于实时监控所述终端设备的电池电压变化情况，并根据所述电池电压变化情况检测所述终端设备的电池是否发生电压突变现象；充电电流检测模块，用于检测所述电池的充电电流；放电电流检测模块，用于检测所述电池的放电电流；第一锁存器；第一控制模块，用于在所述电池发生电压突变现象时，分别对所述电池的充电电流和放电电流进行判断，并在所述电池的充电电流小于预设充电电流阈值或者所述电池的放电电流小于预设放电电流阈值时，判断所述电池当前发生异常，并控制所述第一锁存器对所述电池的异常状态进行锁存。
根据本发明实施例的终端设备的电池异常监控系统，通过电压突变监控模块实时监控终端设备的电池电压变化情况来检测终端设备的电池是否发生电压突变现象，同时通过充电电流检测模块和放电电流检测模块来检测电池的充电电流和放电电流，这样在电池发生电压突变现象时，第一控制模块分别对电池的充电电流和放电电流进行判断，并在电池的充电电流小于预设充电电流阈值或者电池的放电电流小于预设放电电流阈值时，第一控制模块判断此时电池电压突变不是由电池充放电引起的，而是电池因受到外界损伤例如挤压、刺破等导致的电池内部正负极短路引起的，因此判断电池当前发生异常，并通过第一锁存器对电池的异常状态进行锁存。因此本发明通过实时监控电池电压是否突变和电池充放电电流来判断电池当前是否因受损而发生异常，从而能够在电池受损时就能实时监控到，并对电池异常状态进行锁存，提高了监控精度，并能够实现及时进行提醒和送修，避免因电池异常带来的安全隐患，进而大大提高了终端设备使用时的安全性。
另外，根据本发明上述实施例提出的终端设备的电池异常监控系统还可以具有如下附加的技术特征：
根据本发明的一个实施例，还包括温度检测模块、电压检测模块和第二控制模块，其中，所述第一锁存器在对所述电池的异常状态进行锁存后，还用于使能所述温度检测模块 和所述电压检测模块，以便所述温度检测模块检测所述电池的温度和所述电压检测模块检测所述电池的电压，所述第二控制模块用于根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别。
根据本发明的一个实施例，所述第二控制模块进一步用于，分别对所述电池的温度和所述电池的电压进行判断，其中，如果所述电池的温度小于预设温度阈值或所述电池的电压小于预设电压阈值，则判断所述电池当前并未发生异常；如果所述电池的温度大于等于预设温度阈值且所述电池的电压大于等于预设电压阈值，则判断所述电池处于异常状态。
根据本发明的一个实施例，还包括第二锁存器和第三控制模块，其中，当所述第二控制模块判断所述电池当前并未发生异常时，所述第二锁存器保持输出不变，以便所述第三控制模块将所述第一锁存器进行复位，以清除所述第一锁存器中锁存的电池的异常状态；当所述第二控制模块判断所述电池处于异常状态时，所述第二锁存器改变输出并保持，以便所述第三控制模块控制所述第一锁存器保持对所述电池的异常状态的锁存。
根据本发明的一个实施例，还包括第一延时模块，用于对所述电池的充电电流信号进行延时第一预设时间。
根据本发明的一个实施例，还包括第二延时模块，用于在延时第二预设时间后，再通过所述第一锁存器输出电池异常状态标志位。
根据本发明的一个实施例，还包括第三延时模块，用于在延时第三预设时间后，通过所述第三控制模块对所述第一锁存器进行控制。
为达到上述目的，本发明第四方面实施例提出了一种终端设备，其包括上述的终端设备的电池异常监控系统。
根据本发明实施例的终端设备，通过上述的终端设备的电池异常监控系统，能够通过实时监控电池电压是否突变和电池充放电电流来判断电池当前是否因受损而发生异常，从而能够在电池受损时就能实时监控到，并对电池异常状态进行锁存，提高了监控精度，并能够实现及时进行提醒和送修，避免因电池异常带来的安全隐患，进而大大提高了终端设备使用时的安全性。
为达到上述目的，本发明第五方面实施例还提出了一种终端设备，其中，所述终端设备包括电池，所述终端设备还包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的终端设备的控制程序，所述终端设备的控制程序被所述处理器执行时实现上述的终端设备的电池异常监控方法的步骤。
根据本发明实施例的终端设备，通过处理器执行上述的终端设备的电池异常监控方法，能够通过实时监控电池电压是否突变和电池充放电电流来判断电池当前是否因受损而发生异常，从而能够在电池受损时就能实时监控到，并对电池异常状态进行锁存，提高了监控 精度，并能够实现及时进行提醒和送修，避免因电池异常带来的安全隐患，进而大大提高了终端设备使用时的安全性。
附图说明
图1为根据本发明一个实施例的电池受损过程示意图；
图2为根据本发明实施例的终端设备的电池异常监控方法的流程图；
图3为根据本发明一个实施例的电压检测和电流检测电路示意图；
图4为根据本发明一个实施例的受损电池与正常电池的电压监测曲线对比示意图；
图5为根据本发明一个实施例的移动终端的提醒信息的示意图；
图6为根据本发明实施例的终端设备的电池异常监控系统的方框示意图；
图7为根据本发明一个具体实施例的终端设备的电池异常监控系统的方框示意图；
图8为根据本发明实施例的终端设备的方框示意图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在描述本发明实施例提出的终端设备的电池异常监控方法、终端设备的电池异常监控系统以及终端设备之前，先来描述一下终端设备中的电池结构以及其可能存在的安全隐患。
举例来说，锂离子电池主要由电芯和电池保护系统组成，其中，电芯被称为锂离子电池的“心脏”，含有正负极材料、电解液、隔离膜以及外壳，外面是电池的保护系统。电芯的正极材料为锰酸锂、钴酸锂等锂分子的材料，决定着电池的能量，负极材料为石墨。隔离膜设置在电池的正负极之间，通俗来讲，隔离膜就像一种纸，不断折叠在小小的电池盒内，隔离膜里充满了正负极材料和电解液，充电时，外部电场把正极材料里面的锂分子激活赶到负极，存储在石墨碳结构的空隙里，驱赶的锂分子越多，存储的能量就越大；放电时，把负极里的锂离子赶到正极，锂离子又变成了原有正极材料里的锂分子，如此循环往复，实现电池的充放电。
其中，隔离膜主要是用于把电芯的正负极材料完全区隔开来，一旦正负极直接接触，就会发生电池内部短路，从而带来一定的安全隐患，因此隔离膜不能太薄，太薄很容易导致隔离膜损坏。但是，随着消费者对终端设备的更高要求，例如，要求移动终端轻薄、屏幕大以及续航能力强，使得生产厂商开始寻求能量密度更高的电池。例如，通过填充更多的正负极材料来提高电池的能量密度，但是在相同体积下，填充的正负极材料越多，隔离 膜就会越来越薄，而电池受到外部撞击、挤压、刺破等损伤时就很容易导致隔离膜损坏，很可能引起电池内部短路。
作为一种示例，当电池受到外界机械损伤例如挤压损伤、跌落损伤、刺破损伤时，由于隔离膜很薄，很容易导致隔离膜损坏而引起正负极间的短路，即所谓的电池内部发生短路，在短路的瞬间，电池电压会被瞬间拉低，主要原因是电池内部形成了一个局部的内短路点，电池损伤程度越高，电压被拉低的越严重。
通常，严重的损伤，电池内部短路面积较大，在损伤点会持续发热，直至电池电压降低至0V，如果电池电压较高，电池甚至会起火、燃烧；轻微的损伤，电池内部短路面积较小，在短路点形成短路电流，由于短路电流较大，在短路点产生较大的热量，会熔断短路点，因此电池电压又会回复到初始状态，这时电池可能与正常电池一样，可以被正常使用，但此时的电池已经存在安全隐患，在后期的使用过程中可能会随时被触发内短路，具体可如图1所示。而电池在受到外界机械损伤时，大多都是轻微损伤，这样引起内部短路的时间很短暂，并且电池内部短路很快又会恢复原状，但此时隔离膜已经局部损坏，因此，这种电池异常一般很难监控到，而这种电池异常的存在又会给终端设备带来一定的安全隐患。
作为又一种示例，在电池充放电过程中，锂离子可能在正负极产生堆积，产生堆积的时候，它会像我们看到很多东西生成晶体一样，产生一种晶枝，该晶枝会慢慢变长，在这个过程中，可能刺穿隔离膜导致电池内部短路发生，而上述一种示例中描述的由于电池受到外界机械损伤引起电池内部短暂短路后又恢复原状的情况，在这时表现的更为明显，即更容易导致电池内部短路再次发生。
一旦短路发生，在电池使用过程中，电芯内部将会产生大量的热，该热量会使电芯内部的电解液产生气化，当热量产生过快时，气化过程就会很快，电芯内部气压就会增大，当气压达到一定程度时，外壳的强度承受不了，外壳就会崩裂，引起爆炸，当遇到明火时还会发生电池起火。
另外，除了能量密度越来越高，使得隔离膜越来越薄，导致隔离膜易损坏，进而导致安全事故发生之外，快充也是电池存在安全隐患的主要原因之一。
所谓快充，顾名思义，就是对二次可充放电池的快速充电的过程。举例来说，电池的充电过程可包括涓流充电阶段、恒流充电阶段和恒压充电阶段中的一个或者多个。在涓流充电阶段，可利用电流反馈环使得在涓流充电阶段进入到电池的电流满足电池所预期的充电电流大小(譬如第一充电电流)，例如，当电压低于3.0V时，采用100mA的充电电流对电池进行预充电。在恒流充电阶段，可利用电流反馈环使得在恒流充电阶段进入电池的电流满足电池所预期的充电电流大小(譬如第二充电电流，该第二充电电流可大于第一充电电流)，例如，根据不同的电池该充电电流可以从0.1C到几C不等，其中C是指电池容量。 通常在这个阶段，标准充电是采用0.1C的充电电流进行充电，而快速充电就是指在这个阶段用大于0.1C的电流进行充电，以在短时间内完成充电。在恒压充电阶段，可利用电压反馈环使得在恒压充电阶段加载到电池两端的电压满足电池所预期的充电电压大小，例如，当电池电压等于4.2V时，进入恒压充电阶段，这个阶段的充电电压恒定为4.2V，当电池逐渐充满时，充电电流会越来越小，当充电电流小于100mA时，即可判断电池充满。
其中，在恒流充电阶段，由于充电电流比较大，如充电电流可以为0.2C～0.8C，有的甚至可达到1C，并且电池的充电过程是一个电化学反应的过程，必然伴随着热量的产生，并且充电电流越大，短时间内产生的热量越多，当隔离膜出现过损伤时，很容易导致正负极短路，一旦短路发生，产生的热量就会更多，电解液发生气化，电芯内部气压增大，当气压达到一定程度时，外壳的强度承受不了，外壳就会崩裂，引起爆炸，当遇到明火时还会发生电池起火。
也就是说，一旦电池发生过内部短路的现象，就说明电池是存在异常的，此时电池也就存在一定的安全隐患，在使用过程中就可能引起安全事故发生。
本申请的发明人基于多年来对电池的不断研究和实验，发现电池在正常使用的状态下，其电压是相对比较稳定的，但是当电池受到损伤时，由于电池内部可能发生短路，从而此时电池电压会出现突然降低的现象，这种电压突变信号非常强烈。而发明人经过大量实验也验证了这一电压突变现象的存在，因此，从测试结果来看，只要电池受到损伤，电压突变的信号就会出现。
正是基于此发现以及大量实验验证，为了能够有效监测电池是否受到损伤，防止电池存在安全隐患，进而防止安全事故发生，本申请针对电池是否出现异常提出了有效的异常监控手段。
下面参照附图来描述根据本发明实施例提出的终端设备的电池异常监控方法、终端设备的电池异常监控系统以及终端设备。
需要说明的是，本发明实施例中所使用到的“终端设备”可包括，但不限于被设置成经由有线线路连接(如经由公共交换电话网络(PSTN)、数字用户线路(DSL)、数字电缆、直接电缆连接，以及/或另一数据连接/网络)和/或经由(例如，针对蜂窝网络、无线局域网(WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器，以及/或另一通信终端的)无线接口接收/发送通信信号的装置。被设置成通过无线接口通信的终端可以被称为“无线通信终端”、“无线终端”以及/或“移动终端”。移动终端的示例包括，但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(GPS)接收器的PDA；以及常规膝上型和/或掌上型接收 器或包括无线电电话收发器的其它电子装置。
图2为根据本发明实施例的终端设备的电池异常监控方法的流程图。如图2所示，该终端设备的电池异常监控方法可包括以下步骤：
S1，实时监控终端设备的电池电压变化情况，并根据电池电压变化情况检测终端设备的电池是否发生电压突变现象。
在本发明一个的实施例中，可通过电压突变监控模块来检测电池是否发生电压突变现象。例如如图3所示，可通过差分放大电路来实时监控电池电压变化情况，差分放大电路可包括电阻R1和R2、电容C1、差分放大器X1，其中，电阻R2的一端连接到电池的正极，电阻R2的另一端连接到差分放大器的负输入端，电阻R1和电容C1组成RC稳压滤波电路，电阻R1的一端连接到差分放大器X1的负输入端，电阻R1的另一端接地，电容C1与电阻R1并联，差分放大器X1的正输入端也连接到电池的正极。通过差分放大电路可以实现对电池电压变化情况的实时监测，并可根据差分放大电路的输出信号来判断电池电压是否发生突变。
S2，检测电池的充电电流和放电电流。
在本发明的实施例中，可通过对电池的充电回路的电流进行检测来得到电池的充电电流，并可对电池的放电回路的电流进行检测来得到电池的放电电流，其中，电池的充电电流是终端设备充电过程中监测到的，而电池的放电电流可以是终端设备工作过程中监测到的。
需要说明的是，当电池受到外界损伤例如挤压、刺破等时，电池内部的正负极短路，电池电压会出现异常跌落的现象，即发生电压突变现象，而本发明正是通过捕捉电压跌落的发生来判断电池当前是否存在异常。然而电压跌落也有可能是电池充放电导致的，例如当系统负载从电池抽取电流的时候，电池电压也会发生跌路，或者电池正在充电，若充电电流消失，电池电压也会发生跌落，因此本发明在监控电池是否发生电压突变现象的同时还检测电池的充放电电流，从而能够准确判断出电池当前是否存在异常。
其中，在本发明的一个实施例中，如图3所示，可通过放电电流检测模块来对电池的放电电流进行检测。具体地，放电电流检测模块可包括：第八电阻R8、第九电阻R9、第十电阻R10、第三比较器X3、第十一电阻R11、第四比较器X4。其中，第八电阻R8的一端与电池的负极相连，第八电阻R8的另一端通过系统负载连接到电池的正极，第八电阻R8为检流电阻；第九电阻R9的一端与第八电阻R8的一端相连，第十电阻R10的一端与第八电阻R8的另一端相连，第三比较器X3的负输入端与第九电阻R9的另一端相连，第三比较器X3的正输入端与第十电阻R10的另一端相连，第十一电阻R11连接在第三比较器X3的负输入端与输出端之间；第四比较器X4的正输入端与第三比较器X3的输出端相 连，第四比较器X4的负输入端与参考电压提供端相连，第四比较器X4的输出端输出放电电流检测信号，以便根据放电电流检测信号判断电池的放电电流是否小于预设放电电流阈值。
具体而言，放电电流检测模块通过检流电阻R8检测电池的放电电流，这样在通过差分放大电路监测到电池电压发生突变时，如果流过检流电阻R8的电池放电电流大于等于预设放电电流阈值，则可判断电池电压发生突变现象是因为系统负载从电池抽取电流导致的电压瞬间跌落，不是由电池受损引起的电压瞬间跌落；在通过差分放大电路监测到电池电压发生突变时，如果流过检流电阻R8的电池放电电流小于预设放电电流阈值，则判断系统负载从电池抽取的电流不足以引起电压跌落，第四比较器X4的正输入端电压小于负输入端的参考电压，第四比较器X4输出低电平，可判断电池电压发生突变不是因为系统负载从电池抽取电流导致的电压瞬间跌落，而是由电池受损引起的电压瞬间跌落。
具体地，在本发明的一个示例中，预设放电电流阈值可以为30mA。
同理，基于电池的充电电流是否小于预设充电电流阈值，也可以判断出电池电压发生突变是由电池充电引起的，还是由电池受损引起的，这里就不再详细赘述。
S3，当电池发生电压突变现象时，如果电池的充电电流小于预设充电电流阈值或者电池的放电电流小于预设放电电流阈值，则判断电池当前发生异常，并通过第一锁存器对电池的异常状态进行锁存。其中，预设充电电流阈值和预设放电电流阈值均可根据实际情况进行标定。
因此，在本发明的实施例中，通过检测电池的充电电流和放电电流，这样当电池发生电压突变现象时，如果电池的充电电流大于等于预设充电电流阈值I Charge或者电池的放电电流大于等于预设放电电流阈值I Discharge，则认为电池电压发生跌落是由于电池充放电导致的。
而由于充电电流信号在充电电流消失时也会跟着消失，因此，需要对充电电流信号进行延时处理。在本发明的一个实施例中，在判断电池的充电电流是否小于预设充电电流阈值之前，还对电池的充电电流信号进行延时第一预设时间，其中，第一预设时间可以根据具体情况进行标定。
若电池电压发生跌落，并且电池的充电电流小于预设充电电流阈值I Charge或者电池的放电电流小于预设放电电流阈值I Discharge，则判断此时电池电压跌落为电池受损导致的，可通过查表的方式来判断电池电压跌落是由电池受损导致的，判断电池当前存在异常，并通过第一锁存器锁存电池受到过损伤的异常状态。
在本发明的实施例中，发明人经过大量测试和实验发现，电池在正常使用过程中，其电压相对比较稳定，但是，一旦电池受到外界机械损伤例如跌落、撞击、挤压、刺破等，此时电池电压就会出现突变现象。因此，本发明实施例的终端设备的电池异常监控方法， 通过监测电池是否发生电压突变现象的同时监测电池的充放电电流，从而在电池电压发生跳变时，如果电池的充电电流或者放电电流分别变化细微，则判断电池此时受到损伤，发生内部短路，并判断电池当前发生异常，存在一定的安全隐患。
根据本发明的一个实施例，可通过监控电池是否出现电压瞬间跌落来判断电池是否发生电压突变现象。
其中，当电池电压在第一预设时间内降低的幅度大于等于预设值时，判断电池出现电压瞬间跌落。
具体地，在本发明的一个示例中，所述预设值可大于等于10mV。其中，经过大量实验验证，在电池轻载(例如电池进行5mA-6mA输出)的情况下，电池因损伤而造成电池端的电压跌落值在10mV以上。
并且，第一预设时间可以以毫秒进行标定，例如可以是0.1-5毫秒。
具体而言，根据本发明的一个实施例，电池损伤过程中的电压监控如图4所示。其中，曲线1表示电池轻微损伤时的电压变化曲线，曲线2表示电池严重损伤时的电压变化曲线，曲线3表示电池正常未收到损伤时的电压变化曲线。从曲线1可知，电池轻微损伤时电池电压瞬间从3.8V跳变到3.63V后又恢复到3.8V左右，从曲线2可知，电池严重损伤时电池电压瞬间从3.8V跳变到3.51V后又恢复到将近3.8V，从曲线3可知，电池正常未收到损伤时电池电压基本稳定在3.8V不变，因此，对比曲线1、曲线2和曲线3可知，一旦电池受到外界机械损伤例如跌落、撞击、挤压、刺破等，此时电池电压就会出现突变现象，即出现瞬间跌落，并且根据受损程度的不同，电压跌落的幅度也不同，本发明通过监测电池电压是否发生电压瞬间跌落，来监控电池当前是否受到损伤，而一旦监测到电池电压发生瞬间跌落，需要进一步判断电池的充放电电流，就可判定电池此时可能受到损伤，发生内部短路。
也就是说，为了防止电池充放电导致电池电压突变而引起的干扰，在监测到电池电压发生突变时，还监测电池的充放电电流，如果电池的充放电电流变化细微，则判断电池当前因受损而发生异常，存在安全隐患。
因此，本发明实施例的终端设备的电池异常监控方法，通过检测电池电压是否出现突然跳变的同时还检测电池的充放电电流，从而可精确判断出电池当前是否发生异常，进而能够在电池受损时就能实时监控到，实现及时进行提醒和送修，避免因电池异常带来的安全隐患，大大提高了终端设备使用时的安全性。
根据本发明的一个实施例，在通过第一锁存器对电池的异常状态进行锁存后，还通过第一锁存器使能终端设备中的温度检测模块和电压检测模块，以便温度检测模块检测电池的温度和电压检测模块检测电池的电压，以根据电池的温度和电池的电压对电池的异常状 态进行再次识别。
具体地，在温度很低或者电池电压很低的情况下，电池的内阻很高，负载从电池抽取很小的电流(小于预设放电电流阈值I Discharge)或者很小的充电电流(小于预设充电电流阈值I Charge)消失，也有可能导致电池发生电压突变现象。因此，在本发明的实施例中，为了提高监控精度，防止出现误判断，在通过第一锁存器对电池的异常状态进行锁存后，还需要对电池的温度和电池的电压进行判断，以对电池当前是否发生异常进行再次确认。
在本发明的一个实施例中，根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别，包括：分别对所述电池的温度和所述电池的电压进行判断；如果所述电池的温度小于预设温度阈值或所述电池的电压小于预设电压阈值，则判断所述电池当前并未发生异常；如果所述电池的温度大于等于预设温度阈值且所述电池的电压大于等于预设电压阈值，则判断所述电池处于异常状态。
也就是说，通过电压检测模块检测电池的电压，并通过温度检测模块检测电池的温度，当第一锁存器的输出为电池的异常状态时，通过电压检测模块检测电池跌落前的电压是否大于预设电压阈值V before(电压检测模块含有电压保持电路，能够保持电压跌落前的电压信息)，并通过温度检测模块检测电池的温度是否大于预设温度阈值T Bat，从而在电池的电压小于预设电压阈值V before或者电池的温度小于预设温度阈值T Bat时，认为电池电压跌落是由于电池内阻过大导致的，需要将第一锁存器复位；而在电池的电压大于等于预设电压阈值V before且电池的温度大于等于预设温度阈值T Bat时，认为电池电压跌落确认是由于电池损伤导致的，保持第一锁存器的输出不变，确认电池当前存在异常。
即言，在根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别以判断所述电池当前并未发生异常时，将所述第一锁存器进行复位，以清除所述第一锁存器中锁存的电池的异常状态。而在根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别以判断所述电池处于异常状态时，保持所述第一锁存器对所述电池的异常状态的锁存。
根据本发明的一个实施例，在所述第一锁存器对所述电池的异常状态进行锁存之后，并延时第二预设时间后，再通过所述第一锁存器输出电池异常状态标志位。其中，输出的电池异常状态标志位是用于终端设备的系统检测，以便根据该标志位进行后续的动作，例如限制电池的使用等。
根据本发明的一个实施例，在检测到电池异常状态标志位时，还控制终端设备发出电池存在异常的提醒信息，同时还可对异常电池进行标记。
举例来说，当监测到电池当前存在异常时，需要对用户进行提醒。作为一种示例，如图5所示，可通过提醒信息“电池安全消息：尊敬的客户，目前您的电池由于受损而处于 异常状态，为了您的安全使用，请您到***的客服网点进行检测维修，谢谢！”对用户进行提醒；作为又一种示例，在通过图5所示的提醒信息对用户进行提醒时，还可通过终端设备上的指示灯闪烁来对用户进行提醒，例如，以较快的频率控制指示灯发出红光闪烁；作为又一种示例，还可以通过终端设备中的语音播报功能对用户进行提醒。
一般情况下，当用户看到上述提醒信息时，会及时到相应客服网点进行检测维修，但是也有些用户在看到该消息时，并不清楚问题的严重性，所以很可能将该消息进行忽略，并继续正常使用，所以此时可对用户进行多次提醒，例如，可以对用户进行至少三次提醒。而如果多次提醒后用户仍未进行处理，此时可限制终端设备的某些功能。
根据本发明的一个实施例，在检测到电池异常状态标志位时，还可根据电池发生电压突变的情况进行故障等级划分，并根据故障等级对终端设备的相应功能进行限制。
即言，可根据电池电压瞬间跌落的电压幅度进行故障等级划分，例如电池电压瞬间跌落的电压幅度越大，表示电池受损越严重，从而可根据电池受损程度划分为一般受损、比较严重受损、严重受损、电池失效，其对应的故障等级为一般等级、比较严重等级、严重等级、完全故障等级，进而可根据故障等级对终端设备的相应功能进行限制。
举例而言，通常情况下，终端设备中的应用程序的耗电量越小，在电池使用时，发热量就会小，例如仅开启聊天工具且未进行视频聊天，此时电池耗电量小，电池发热量少，电池发生危险的可能性相对较小，而当应用程序的耗电量比较大时，例如观看视频、玩游戏等，此时电池耗电量大，电池发热量大，很容易发生安全事故，因此，当判断电池存在异常时，如果故障等级为一般等级，禁止耗电量大的视频软件、游戏软件等的使用；如果故障等级为比较严重等级和严重等级，此时直接禁止整个系统启动，以防止发生安全事故，并在终端设备的显示屏上显示“电池存在安全隐患，禁止系统启动，请到***的客服网点进行检测维修，谢谢配合！”，以对用户进行提醒；如果故障等级为完全故障等级，此时电池失效，系统关机，并无法启动。
另外，由于电池充电过程中也会产生热，尤其是在快充的状态下，短时间内产生的热量更多，因此在判断电池存在异常时，还禁止对电池进行快速充电，严重的情况下禁止用户对电池充电，以防止发生安全事故，并在终端设备的显示屏上显示“由于电池受损，因此禁止对电池进行充电，还请***的客服网点进行检测维修，谢谢配合！”，以对用户进行提醒。
根据本发明的一个实施例，在通过第一锁存器对电池的异常状态进行锁存后，并延时第三预设时间后，再根据电池的温度和电池的电压对电池的异常状态进行再次识别。
也就是说，是否要对第一锁存器进行作用，例如复位第一锁存器或者保持第一锁存器的输出不变，是在第三预设时间后完成的。
并且，在本发明的实施例中，还可通过外部指令来对第一锁存器进行复位，从而清除电池异常状态标志位。
综上所述，根据本发明实施例的终端设备的电池异常监控方法，通过实时监控终端设备的电池电压变化情况，并根据电池电压变化情况来检测终端设备的电池是否发生电压突变现象，同时通过检测电池的充电电流和放电电流，这样在电池发生电压突变现象时，如果电池的充电电流小于预设充电电流阈值或者电池的放电电流小于预设放电电流阈值，则判断此时电池电压突变不是由电池充放电引起的，而是电池因受到外界损伤例如挤压、刺破等导致的电池内部正负极短路引起的，因此电池当前发生异常，并通过第一锁存器对电池的异常状态进行锁存。因此本发明通过实时监控电池电压是否突变和电池充放电电流来判断电池当前是否因受损而发生异常，从而能够在电池受损时就能实时监控到，并对电池异常状态进行锁存，提高了监控精度，并能够实现及时进行提醒和送修，避免因电池异常带来的安全隐患，进而大大提高了终端设备使用时的安全性。
另外，本发明的实施例还提出了一种非临时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述的电池异常监控方法。
根据本发明实施例的非临时性计算机可读存储介质，通过执行上述的电池异常监控方法，能够通过实时监控电池电压是否突变和电池充放电电流来判断电池当前是否因受损而发生异常，从而能够在电池受损时就能实时监控到，并对电池异常状态进行锁存，提高了监控精度，并能够实现及时进行提醒和送修，避免因电池异常带来的安全隐患，进而大大提高了终端设备使用时的安全性。
图6为根据本发明实施例的终端设备的电池异常监控系统的方框示意图。如图6所示，该终端设备的电池异常监控系统100包括：电压突变监控模块110、充电电流检测模块120、放电电流检测模块130、第一锁存器140和第一控制模块150。
其中，电压突变监控模块110用于实时监控终端设备的电池电压变化情况，并根据电池电压变化情况检测终端设备的电池是否发生电压突变现象，充电电流检测模块120用于检测所述电池的充电电流，放电电流检测模块130用于检测所述电池的放电电流，第一控制模块150用于在所述电池发生电压突变现象时，分别对所述电池的充电电流和放电电流进行判断，并在所述电池的充电电流小于预设充电电流阈值或者所述电池的放电电流小于预设放电电流阈值时，判断所述电池当前发生异常，并控制所述第一锁存器140对所述电池的异常状态进行锁存。
例如如图3所示，可通过差分放大电路来实时监控电池电压变化情况，差分放大电路可包括电阻R1和R2、电容C1、差分放大器X1，其中，电阻R2的一端连接到电池的正极，电阻R2的另一端连接到差分放大器的负输入端，电阻R1和电容C1组成RC稳压滤波电 路，电阻R1的一端连接到差分放大器X1的负输入端，电阻R1的另一端接地，电容C1与电阻R1并联，差分放大器X1的正输入端也连接到电池的正极。通过差分放大电路可以实现对电池电压变化情况的实时监测，并可根据差分放大电路的输出信号来判断电池电压是否发生突变。
在本发明的实施例中，充电电流检测模块120可通过对电池的充电回路的电流进行检测来得到电池的充电电流，放电电流检测模块130可对电池的放电回路的电流进行检测来得到电池的放电电流，其中，电池的充电电流是终端设备充电过程中监测到的，而电池的放电电流可以是终端设备工作过程中监测到的。
需要说明的是，当电池受到外界损伤例如挤压、刺破等时，电池内部的正负极短路，电池电压会出现异常跌落的现象，即发生电压突变现象，而本发明正是通过捕捉电压跌落的发生来判断电池当前是否存在异常。然而电压跌落也有可能是电池充放电导致的，例如当系统负载从电池抽取电流的时候，电池电压也会发生跌路，或者电池正在充电，若充电电流消失，电池电压也会发生跌落，因此本发明在监控电池是否发生电压突变现象的同时还检测电池的充放电电流，从而能够准确判断出电池当前是否存在异常。
在本发明的实施例中，通过检测电池的充电电流和放电电流，这样当电池发生电压突变现象时，如果电池的充电电流大于等于预设充电电流阈值I Charge或者电池的放电电流大于等于预设放电电流阈值I Discharge，则认为电池电压发生跌落是由于电池充放电导致的。
而由于充电电流信号在充电电流消失时也会跟着消失，因此，需要对充电电流信号进行延时处理。在本发明的一个实施例中，如图7所示，上述的终端设备的电池异常监控系统还包括第一延时模块160，用于对所述电池的充电电流信号进行延时第一预设时间，其中，第一预设时间可以根据具体情况进行标定。
若电池电压发生跌落，并且电池的充电电流小于预设充电电流阈值I Charge或者电池的放电电流小于预设放电电流阈值I Discharge，第一控制模块150则判断此时电池电压跌落为电池受损导致的，可通过查表的方式来判断电池电压跌落是由电池受损导致的，判断电池当前存在异常，并通过第一锁存器140锁存电池受到过损伤的异常状态。
根据本发明的一个实施例，如图7所示，上述的终端设备的电池异常监控系统还包括温度检测模块170、电压检测模块180和第二控制模块190，其中，第一锁存器140在对所述电池的异常状态进行锁存后，还用于使能所述温度检测模块170和所述电压检测模块180，以便所述温度检测模块170检测所述电池的温度和所述电压检测模块180检测所述电池的电压，所述第二控制模块190用于根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别。
并且，所述第二控制模块进一步用于，分别对所述电池的温度和所述电池的电压进行 判断，其中，如果所述电池的温度小于预设温度阈值或所述电池的电压小于预设电压阈值，则判断所述电池当前并未发生异常；如果所述电池的温度大于等于预设温度阈值且所述电池的电压大于等于预设电压阈值，则判断所述电池处于异常状态。
具体地，在温度很低或者电池电压很低的情况下，电池的内阻很高，负载从电池抽取很小的电流(小于预设放电电流阈值I Discharge)或者很小的充电电流(小于预设充电电流阈值I Charge)消失，也有可能导致电池发生电压突变现象。因此，在本发明的实施例中，为了提高监控精度，防止出现误判断，在通过第一锁存器对电池的异常状态进行锁存后，还需要对电池的温度和电池的电压进行判断，以对电池当前是否发生异常进行再次确认。
根据本发明的一个实施例，如图7所示，上述的终端设备的电池异常监控系统还包括第二锁存器210和第三控制模块220，其中，当所述第二控制模块判断所述电池当前并未发生异常时，所述第二锁存器保持输出不变，以便所述第三控制模块将所述第一锁存器进行复位，以清除所述第一锁存器中锁存的电池的异常状态；当所述第二控制模块判断所述电池处于异常状态时，所述第二锁存器改变输出并保持，以便所述第三控制模块控制所述第一锁存器保持对所述电池的异常状态的锁存。
也就是说，通过电压检测模块检测电池的电压，并通过温度检测模块检测电池的温度，当第一锁存器的输出为电池的异常状态时，通过电压检测模块检测电池跌落前的电压是否大于预设电压阈值V before(电压检测模块含有电压保持电路，能够保持电压跌落前的电压信息)，并通过温度检测模块检测电池的温度是否大于预设温度阈值T Bat，从而在电池的电压小于预设电压阈值V before或者电池的温度小于预设温度阈值T Bat时，认为电池电压跌落是由于电池内阻过大导致的，需要将第一锁存器复位；而在电池的电压大于等于预设电压阈值V before且电池的温度大于等于预设温度阈值T Bat时，认为电池电压跌落确认是由于电池损伤导致的，保持第一锁存器的输出不变，确认电池当前存在异常。
在本发明的一个实施例中，如图7所示，上述的终端设备的电池异常监控系统还包括第二延时模块230，用于在延时第二预设时间后，再通过所述第一锁存器140输出电池异常状态标志位。
其中，输出的电池异常状态标志位是用于终端设备的系统检测的，以便根据该标志位进行后续的动作，例如限制电池的使用等。
根据本发明的一个实施例，如图7所示，上述的终端设备的电池异常监控系统还包括第三延时模块240，用于在延时第三预设时间后，通过所述第三控制模块220对所述第一锁存器进行控制。
也就是说，是否要对第一锁存器进行作用，例如复位第一锁存器或者保持第一锁存器的输出不变，是在第三预设时间后完成的。
因此，本发明实施例的终端设备的电池异常监控系统，通过检测电池电压是否出现突然跳变的同时还检测电池充放电电流，并在判断电池存在异常后，再通过检测电池的电压和电池的温度对电池的异常状态进行验证，从而可精确判断出电池是否真正发生异常，进而能够在电池受损时就能实时监控到，实现及时进行提醒和送修，避免因电池异常带来的安全隐患，大大提高了终端设备使用时的安全性。
根据本发明的一个实施例，在检测到电池异常状态标志位时，还通过所述终端设备发出电池存在异常的提醒信息。
举例来说，当监测到电池当前存在异常时，需要对用户进行提醒。作为一种示例，如图5所示，可通过提醒信息“电池安全消息：尊敬的客户，目前您的电池由于受损而处于异常状态，为了您的安全使用，请您到***的客服网点进行检测维修，谢谢！”对用户进行提醒；作为又一种示例，在通过图5所示的提醒信息对用户进行提醒时，还可通过终端设备例如移动终端上的指示灯闪烁来对用户进行提醒，例如，以较快的频率控制指示灯发出红光闪烁；作为又一种示例，还可以通过终端设备中的语音播报功能对用户进行提醒。
一般情况下，当用户看到上述提醒信息时，会及时到相应客服网点进行检测维修，但是也有些用户在看到该消息时，并不清楚问题的严重性，所以很可能将该消息进行忽略，并继续正常使用，所以此时可对用户进行多次提醒，例如，可以对用户进行至少三次提醒。而如果多次提醒后用户仍未进行处理，此时可限制终端设备的某些功能。
根据本发明的一个实施例，在检测到电池异常状态标志位时，还可根据所述电池发生电压突变的情况进行故障等级划分，并根据所述故障等级对所述终端设备的相应功能进行限制。
即言，可根据电池电压瞬间跌落的电压幅度进行故障等级划分，例如电池电压瞬间跌落的电压幅度越大，表示电池受损越严重，从而可根据电池受损程度划分为一般受损、比较严重受损、严重受损、电池失效，其对应的故障等级为一般等级、比较严重等级、严重等级、完全故障等级，进而可根据故障等级对终端设备的相应功能进行限制。
举例而言，通常情况下，终端设备中的应用程序的耗电量越小，在电池使用时，发热量就会小，例如仅开启聊天工具且未进行视频聊天，此时电池耗电量小，电池发热量少，电池发生危险的可能性相对较小，而当应用程序的耗电量比较大时，例如观看视频、玩游戏等，此时电池耗电量大，电池发热量大，很容易发生安全事故，因此，当判断电池存在异常时，如果故障等级为一般等级，禁止耗电量大的视频软件、游戏软件等的使用；如果故障等级为比较严重等级和严重等级，此时直接禁止整个系统启动，以防止发生安全事故，并在终端设备的显示屏上显示“电池存在安全隐患，禁止系统启动，请到***的客服网点进行检测维修，谢谢配合！”，以对用户进行提醒；如果故障等级为完全故障等级，此时电池 失效，系统关机，并禁止启动。
另外，由于电池充电过程中也会产生热，尤其是在快充的状态下，短时间内产生的热量更多，因此在判断电池存在异常时，还禁止对电池进行快速充电，严重的情况下禁止用户对电池充电，以防止发生安全事故，并在终端设备的显示屏上显示“由于电池受损，因此禁止对电池进行充电，还请***的客服网点进行检测维修，谢谢配合！”，以对用户进行提醒。
根据本发明实施例的终端设备的电池异常监控系统，通过电压突变监控模块实时监控终端设备的电池电压变化情况来检测终端设备的电池是否发生电压突变现象，同时通过充电电流检测模块和放电电流检测模块来检测电池的充电电流和放电电流，这样在电池发生电压突变现象时，第一控制模块分别对电池的充电电流和放电电流进行判断，并在电池的充电电流小于预设充电电流阈值或者电池的放电电流小于预设放电电流阈值时，第一控制模块判断此时电池电压突变不是由电池充放电引起的，而是电池因受到外界损伤例如挤压、刺破等导致的电池内部正负极短路引起的，因此判断电池当前发生异常，并通过第一锁存器对电池的异常状态进行锁存。因此本发明通过实时监控电池电压是否突变和电池充放电电流来判断电池当前是否因受损而发生异常，从而能够在电池受损时就能实时监控到，并对电池异常状态进行锁存，提高了监控精度，并能够实现及时进行提醒和送修，避免因电池异常带来的安全隐患，进而大大提高了终端设备使用时的安全性。
此外，如图8所示，本发明的实施例还提出了一种终端设备10，其包括上述的终端设备的电池异常监控系统100。
根据本发明实施例的终端设备，通过上述的终端设备的电池异常监控系统，能够通过实时监控电池电压是否突变和电池充放电电流来判断电池当前是否因受损而发生异常，从而能够在电池受损时就能实时监控到，并对电池异常状态进行锁存，提高了监控精度，并能够实现及时进行提醒和送修，避免因电池异常带来的安全隐患，进而大大提高了终端设备使用时的安全性。
最后，本发明实施例还提出了一种终端设备，其中，所述终端设备包括电池，所述终端设备还包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的终端设备的控制程序，所述终端设备的控制程序被所述处理器执行时实现上述的终端设备的电池异常监控方法的步骤。
根据本发明实施例的终端设备，通过处理器执行上述的终端设备的电池异常监控方法，能够通过实时监控电池电压是否突变和电池充放电电流来判断电池当前是否因受损而发生异常，从而能够在电池受损时就能实时监控到，并对电池异常状态进行锁存，提高了监控精度，并能够实现及时进行提醒和送修，避免因电池异常带来的安全隐患，进而大大提高 了终端设备使用时的安全性。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本 发明的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (18)

  1. 一种终端设备的电池异常监控方法，其特征在于，包括以下步骤：
    实时监控所述终端设备的电池电压变化情况，并根据所述电池电压变化情况检测所述终端设备的电池是否发生电压突变现象；
    检测所述电池的充电电流和放电电流；
    当所述电池发生电压突变现象时，如果所述电池的充电电流小于预设充电电流阈值或者所述电池的放电电流小于预设放电电流阈值，则判断所述电池当前发生异常，并通过第一锁存器对所述电池的异常状态进行锁存。
  2. 如权利要求1所述的终端设备的电池异常监控方法，其特征在于，在通过所述第一锁存器对所述电池的异常状态进行锁存后，还通过所述第一锁存器使能所述终端设备中的温度检测模块和电压检测模块，以便所述温度检测模块检测所述电池的温度和所述电压检测模块检测所述电池的电压，以根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别。
  3. 如权利要求2所述的终端设备的电池异常监控方法，其特征在于，根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别，包括：
    分别对所述电池的温度和所述电池的电压进行判断；
    如果所述电池的温度小于预设温度阈值或所述电池的电压小于预设电压阈值，则判断所述电池当前并未发生异常；
    如果所述电池的温度大于等于预设温度阈值且所述电池的电压大于等于预设电压阈值，则判断所述电池处于异常状态。
  4. 如权利要求2或3所述的终端设备的电池异常监控方法，其特征在于，在根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别以判断所述电池当前并未发生异常时，将所述第一锁存器进行复位，以清除所述第一锁存器中锁存的电池的异常状态。
  5. 如权利要求2或3所述的终端设备的电池异常监控方法，其特征在于，在根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别以判断所述电池处于异常状态时，保持所述第一锁存器对所述电池的异常状态的锁存。
  6. 如权利要求1-5任一项所述的终端设备的电池异常监控方法，其特征在于，在判断所述电池的充电电流是否小于预设充电电流阈值之前，还对所述电池的充电电流信号进行延时第一预设时间。
  7. 如权利要求6所述的终端设备的电池异常监控方法，其特征在于，在所述第一锁存 器对所述电池的异常状态进行锁存之后，并延时第二预设时间后，再通过所述第一锁存器输出电池异常状态标志位。
  8. 如权利要求2所述的终端设备的电池异常监控方法，其特征在于，在通过所述第一锁存器对所述电池的异常状态进行锁存后，并延时第三预设时间后，再根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别。
  9. 一种非临时性计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1-8中任一项所述的电池异常监控方法。
  10. 一种终端设备的电池异常监控系统，其特征在于，包括：
    电压突变监控模块，用于实时监控所述终端设备的电池电压变化情况，并根据所述电池电压变化情况检测所述终端设备的电池是否发生电压突变现象；
    充电电流检测模块，用于检测所述电池的充电电流；
    放电电流检测模块，用于检测所述电池的放电电流；
    第一锁存器；
    第一控制模块，用于在所述电池发生电压突变现象时，分别对所述电池的充电电流和放电电流进行判断，并在所述电池的充电电流小于预设充电电流阈值或者所述电池的放电电流小于预设放电电流阈值时，判断所述电池当前发生异常，并控制所述第一锁存器对所述电池的异常状态进行锁存。
  11. 如权利要求10所述的终端设备的电池异常监控系统，其特征在于，还包括温度检测模块、电压检测模块和第二控制模块，其中，所述第一锁存器在对所述电池的异常状态进行锁存后，还用于使能所述温度检测模块和所述电压检测模块，以便所述温度检测模块检测所述电池的温度和所述电压检测模块检测所述电池的电压，所述第二控制模块用于根据所述电池的温度和所述电池的电压对所述电池的异常状态进行再次识别。
  12. 如权利要求11所述的终端设备的电池异常监控系统，其特征在于，所述第二控制模块进一步用于，分别对所述电池的温度和所述电池的电压进行判断，其中，
    如果所述电池的温度小于预设温度阈值或所述电池的电压小于预设电压阈值，则判断所述电池当前并未发生异常；
    如果所述电池的温度大于等于预设温度阈值且所述电池的电压大于等于预设电压阈值，则判断所述电池处于异常状态。
  13. 如权利要求12所述的终端设备的电池异常监控系统，其特征在于，还包括第二锁存器和第三控制模块，其中，
    当所述第二控制模块判断所述电池当前并未发生异常时，所述第二锁存器保持输出不变，以便所述第三控制模块将所述第一锁存器进行复位，以清除所述第一锁存器中锁存的 电池的异常状态；
    当所述第二控制模块判断所述电池处于异常状态时，所述第二锁存器改变输出并保持，以便所述第三控制模块控制所述第一锁存器保持对所述电池的异常状态的锁存。
  14. 如权利要求10-13中任一项所述的终端设备的电池异常监控系统，其特征在于，还包括第一延时模块，用于对所述电池的充电电流信号进行延时第一预设时间。
  15. 如权利要求14所述的终端设备的电池异常监控系统，其特征在于，还包括第二延时模块，用于在延时第二预设时间后，再通过所述第一锁存器输出电池异常状态标志位。
  16. 如权利要求13所述的终端设备的电池异常监控系统，其特征在于，还包括第三延时模块，用于在延时第三预设时间后，通过所述第三控制模块对所述第一锁存器进行控制。
  17. 一种终端设备，其特征在于，包括如权利要求10-16中任一项所述的终端设备的电池异常监控系统。
  18. 一种终端设备，其特征在于，所述终端设备包括电池，所述终端设备还包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的终端设备的控制程序，所述终端设备的控制程序被所述处理器执行时实现如权利要求1-8中任一项所述的终端设备的电池异常监控方法的步骤。
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