CN105044608B

CN105044608B - Battery status monitoring method and device

Info

Publication number: CN105044608B
Application number: CN201510386140.1A
Authority: CN
Inventors: 周国华
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2019-08-30
Anticipated expiration: 2035-06-30
Also published as: CN105044608A

Abstract

The invention discloses a kind of battery status monitoring method and device, the method includes the steps: detection module detects the thermistor voltage of battery, compares the size of thermistor voltage Yu battery status threshold voltage, according to the corresponding level of comparison result output；When the level of detection module output changes, interruption control module triggering is interrupted；Interruption processing module response is interrupted, and the current state of battery is obtained.To, so that system is in normal course of operation, software unit (interruption processing module) does not need the variation of concern battery temperature, when only hardware cell (detection module and interruption control module) detects that battery status changes and triggers interruption indirectly, the current state of battery is just obtained.When to greatly simplify software design logic, improving response speed, and in some battery temperature sensitivity environment, for example charging to battery, when battery temperature is normal, system can enter dormant state, reduce system power dissipation, improve charge efficiency.

Description

Battery status monitoring method and device

Technical field

The present invention relates to field of communication technology more particularly to a kind of battery status monitoring method and devices.

Background technique

The lithium battery of mobile terminal must work within the scope of its operating temperature ratings, fill under excess temperature environment to lithium battery On the one hand discharge operation can accelerate lithium battery capacity to decay, in addition also will affect lithium battery security performance.Traditional mobile terminal Middle lithium battery temperature detecting function is mainly realized in such a way that software polling monitors.After system start-up, pass through a timing The partial pressure at the both ends device periodic samples thermistor Rntc, then according to the battery voltage divider of sampling, from temperature~voltage mapping table Battery temperature corresponding with the partial pressure is obtained in T1.

1) traditional software polling mode has the disadvantage that in charging mode, software cycle polling mode can be led Cause mobile terminal can not suspend mode to increase system power dissipation reduce charge efficiency；2) make in some battery temperatures sensitivities With in scene, system needs specially to safeguard a software timer to be responsible for periodic samples, the detection of battery temperature, increases The complexity of software design, and reduce response speed.

Summary of the invention

It is a primary object of the present invention to propose a kind of battery status monitoring method and device, it is intended to simplify design logic, System power dissipation is reduced, response speed is improved.

To achieve the above object, the present invention proposes a kind of battery status monitoring method, comprising steps of

Detection module detects the thermistor voltage of battery, the thermistor voltage and battery status threshold voltage Size, corresponding level is exported according to comparison result；

When the level of detection module output changes, interruption control module triggering is interrupted；

Interruption processing module responds the interruption, obtains the current state of the battery.

Preferably, the detection module includes at least two comparators, and the interruption control module includes at least two logical With input/output GPIO；

Each corresponding GPIO of the comparator, and to the corresponding GPIO output level, when the comparator When the level of output changes, the corresponding GPIO triggering is interrupted.

Preferably, described interrupt of interruption processing module response includes:

The interruption processing module detects the voltage status of the GPIO, according to the acquisition of the voltage status of the GPIO The current state of battery.

Preferably, the interruption control module includes GPIO1, GPIO2 and GPIO3, and the detection module includes the first ratio Compared with device, the second comparator and third comparator, the corresponding battery status threshold voltage of each comparator is respectively the first battery Status threshold voltage V1, the second battery status threshold voltage V2 and third battery status threshold voltage V3, and V1 > V2 > V3；

When the thermistor voltage is greater than V1, the first comparator and the second comparator are respectively to the GPIO1 High level is exported with GPIO2, the third comparator exports low level to the GPIO3, and the interruption processing module detects When the voltage status of the GPIO1 is high level state, determine that the current state of the battery is pulled out for battery；

When the thermistor voltage is between V1 and V2, second comparator exports high electricity to the GPIO2 Flat, the first comparator and third comparator export low level, the interrupt processing mould to the GPIO1 and GPIO3 respectively When block detects that the voltage status of the GPIO1 and GPIO2 is respectively low level state and high level state, the battery is determined Current state be battery temperature it is too low；

When the thermistor voltage is less than V3, the first comparator and the second comparator are respectively to the GPIO1 Low level is exported with GPIO2, the third comparator exports high level to the GPIO3, and the interruption processing module detects When the voltage status of the GPIO3 is high level state, determine that the current state of the battery is excessively high for battery temperature.

Preferably, the interruption control module includes GPIO2 and GPIO3, the detection module include the second comparator and Third comparator, the corresponding battery status threshold voltage of each comparator is respectively the second battery status threshold voltage V2 and Three battery status threshold voltage V3, and V2 > V3；

When the thermistor voltage is greater than V2, second comparator exports high level to the GPIO2, and described the Three comparators export low level to the GPIO3, and the interruption processing module detects the voltage status of the GPIO2 for high electricity When level state, determine that the current state of the battery is too low for battery temperature；

When the thermistor voltage is less than V3, second comparator exports low level to the GPIO2, and described the Three comparators export high level to the GPIO3, and the interruption processing module detects the voltage status of the GPIO3 for high electricity When level state, determine that the current state of the battery is excessively high for battery temperature.

The present invention proposes a kind of battery status monitoring device simultaneously, comprising:

Detection module, for detecting the thermistor voltage of battery, the thermistor voltage and battery status door The size of voltage limit exports corresponding level according to comparison result；

Interruption control module, when the level for exporting when the detection module changes, triggering is interrupted；

Interruption processing module obtains the current state of the battery for responding the interruption.

Preferably, the detection module includes at least two comparators, and the interruption control module includes at least two logical With input/output GPIO, each corresponding GPIO of the comparator；

The detection module is used for: by the comparator to the corresponding GPIO output level；

Whether the interruption control module is used for: being become by the level that the GPIO detects the comparator output Change, when a change, controls the corresponding GPIO triggering and interrupt.

Preferably, the interruption processing module is used for: the voltage status of the GPIO is detected, according to the voltage of the GPIO State obtains the current state of the battery.

Preferably, interruption control module includes GPIO1, GPIO2 and GPIO3, the detection module include first comparator, Second comparator and third comparator, the corresponding battery status threshold voltage of each comparator is respectively the first battery status door Voltage limit V1, the second battery status threshold voltage V2 and third battery status threshold voltage V3, and V1 > V2 > V3；

The detection module is used for: when the thermistor voltage is greater than V1, passing through the first comparator and second Comparator exports high level to the GPIO1 and GPIO2 respectively, exports low electricity to the GPIO3 by the third comparator It is flat；When the thermistor voltage is between V1 and V2, high electricity is exported to the GPIO2 by second comparator It is flat, low level is exported to the GPIO1 and GPIO3 respectively by the first comparator and third comparator；When the temperature-sensitive When resistive voltage is less than V3, low electricity is exported to the GPIO1 and GPIO2 respectively by the first comparator and the second comparator It is flat, high level is exported to the GPIO3 by the third comparator；

The middle processing module is used for: when the voltage status for detecting the GPIO1 is high level state, described in judgement The current state of battery is pulled out for battery；When the voltage status for detecting the GPIO1 and GPIO2 is respectively low level state When with high level state, determine that the current state of the battery is too low for battery temperature；When the voltage shape for detecting the GPIO3 When state is high level state, determine that the current state of the battery is excessively high for battery temperature.

The detection module is used for: when the thermistor voltage is greater than V2, by second comparator to described GPIO2 exports high level, exports low level to the GPIO3 by the third comparator；When the thermistor voltage is small When V3, low level is exported to the GPIO2 by second comparator, by the third comparator to the GPIO3 Export high level；

The interruption processing module is used for: when the voltage status for detecting the GPIO2 is high level state, determining institute The current state for stating battery is that battery temperature is too low；When the voltage status for detecting the GPIO3 is high level state, determine The current state of the battery is that battery temperature is excessively high.

A kind of battery status monitoring method proposed by the invention passes through hardware cell (detection module and interruption control mould Block) it detects to trigger when battery status changes indirectly and interrupt, software unit (interruption processing module) detects ability after interruption Started, carries out the acquisition of battery status.So that system, in normal course of operation, software does not need concern battery temperature Variation (such as not needing through timer period sampling battery temperature, and battery temperature is obtained to sampling and is handled), only Have when battery status changes, just obtains the current state of battery.To greatly simplify software design logic, improve Response speed, and in some battery temperature sensitivity environment, for example, when charging to battery, when battery temperature is normal, system Dormant state can be entered, reduce system power dissipation, improve charge efficiency.

Detailed description of the invention

The hardware structural diagram of Fig. 1 mobile terminal of each embodiment to realize the present invention；

Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；

Fig. 3 is the flow chart of battery status monitoring method first embodiment of the invention；

Fig. 4 is the flow chart of battery status monitoring method second embodiment of the invention；

Fig. 5 is the flow chart of battery status monitoring method 3rd embodiment of the invention；

Fig. 6 is the module diagram of battery status monitoring device first embodiment of the invention；

Fig. 7 is the module diagram of battery status monitoring device second embodiment of the invention；

Fig. 8 is the module diagram of battery status monitoring device 3rd embodiment of the invention；

Fig. 9 is the circuit diagram of one example of battery status monitoring device of the invention.

The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.

Specific embodiment

It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.

The mobile terminal of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, use For indicate element such as " module ", " component " or " unit " suffix only for being conducive to explanation of the invention, itself There is no specific meanings.Therefore, " module " can be used mixedly with " component ".

Mobile terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as moving Phone, smart phone, laptop, digit broadcasting receiver, PDA (personal digital assistant), PAD (tablet computer), PMP The mobile terminal of (portable media player), navigation device etc. and such as number TV, desktop computer etc. are consolidated Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that in addition to being used in particular for moving Except the element of purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.

Fig. 1 to realize the present invention the mobile terminal of each embodiment hardware configuration signal.

Mobile terminal 100 may include wireless communication unit 110, A/V (audio/video) input unit 120, user's input Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power supply unit 190 Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups shown Part.More or fewer components can alternatively be implemented.The element of mobile terminal will be discussed in more detail below.

Wireless communication unit 110 generally includes one or more components, allows mobile terminal 100 and wireless communication system Or the radio communication between network.For example, wireless communication unit may include broadcasting reception module 111, mobile communication module 112, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.

Broadcasting reception module 111 receives broadcast singal and/or broadcast from external broadcast management server via broadcast channel Relevant information.Broadcast channel may include satellite channel and/or terrestrial channel.Broadcast management server, which can be, to be generated and sent The broadcast singal and/or broadcast related information generated before the server or reception of broadcast singal and/or broadcast related information And send it to the server of terminal.Broadcast singal may include TV broadcast singal, radio signals, data broadcasting Signal etc..Moreover, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase Closing information can also provide via mobile communications network, and in this case, broadcast related information can be by mobile communication mould Block 112 receives.Broadcast singal can exist in a variety of manners, for example, it can be with the electronics of digital multimedia broadcasting (DMB) Program guide (EPG), digital video broadcast-handheld (DVB-H) electronic service guidebooks (ESG) etc. form and exist.Broadcast Receiving module 111 can receive signal broadcast by using various types of broadcast systems.Particularly, broadcasting reception module 111 It can be wide by using such as multimedia broadcasting-ground (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video It broadcasts-holds (DVB-H), forward link media (MediaFLO^@) Radio Data System, received terrestrial digital broadcasting integrated service (ISDB-T) etc. digit broadcasting system receives digital broadcasting.Broadcasting reception module 111, which may be constructed such that, to be adapted to provide for extensively Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via the received broadcast singal of broadcasting reception module 111 and/ Or broadcast related information can store in memory 160 (or other types of storage medium).

Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal And at least one of server and/or receive from it radio signal.Such radio signal may include that voice is logical Talk about signal, video calling signal or according to text and/or Multimedia Message transmission and/or received various types of data.

The Wi-Fi (Wireless Internet Access) of the support mobile terminal of wireless Internet module 113.The module can be internally or externally It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved in the module may include WLAN (Wireless LAN) (Wi-Fi), Wibro (WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..

Short range communication module 114 is the module for supporting short range communication.Some examples of short-range communication technology include indigo plant Tooth^TM, radio frequency identification (RFID), Infrared Data Association (IrDA), ultra wide band (UWB), purple honeybee^TMEtc..

Location information module 115 is the module for checking or obtaining the location information of mobile terminal.Location information module Typical case be GPS (global positioning system).According to current technology, GPS module 115, which calculates, comes from three or more satellites Range information and correct time information and the Information application triangulation for calculating, thus according to longitude, latitude Highly accurately calculate three-dimensional current location information.Currently, it is defended for the method for calculating position and temporal information using three Star and the error that calculated position and temporal information are corrected by using an other satellite.In addition, GPS module 115 It can be by Continuous plus current location information in real time come calculating speed information.

A/V input unit 120 is for receiving audio or video signal.A/V input unit 120 may include 121 He of camera Microphone 1220, camera 121 is to the static map obtained in video acquisition mode or image capture mode by image capture apparatus The image data of piece or video is handled.Treated, and picture frame may be displayed on display module 151.At camera 121 Picture frame after reason can store in memory 160 (or other storage mediums) or carry out via wireless communication unit 110 It sends, two or more cameras 1210 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone relation mould Sound (audio data) is received via microphone in formula, logging mode, speech recognition mode etc. operational mode, and can be incited somebody to action Such acoustic processing is audio data.Audio that treated (voice) data can be converted in the case where telephone calling model For the format output that can be sent to mobile communication base station via mobile communication module 112.Various types can be implemented in microphone 122 Noise eliminate (or inhibit) algorithm with eliminate noise that (or inhibition) generates during sending and receiving audio signal or Person's interference.

The order that user input unit 130 can be inputted according to user generates key input data to control each of mobile terminal Kind operation.User input unit 130 allows user to input various types of information, and may include keyboard, metal dome, touch Plate (for example, the sensitive component of detection due to the variation of resistance, pressure, capacitor etc. caused by being contacted), idler wheel, rocking bar etc. Deng.Particularly, when touch tablet is superimposed upon in the form of layer on display module 151, touch screen can be formed.

Sensing unit 140 detects the current state of mobile terminal 100, (for example, mobile terminal 100 opens or closes shape State), the position of mobile terminal 100, user is for the presence or absence of contact (that is, touch input) of mobile terminal 100, mobile terminal 100 orientation, the acceleration or deceleration movement of mobile terminal 100 and direction etc., and generate for controlling mobile terminal 100 The order of operation or signal.For example, sensing unit 140 can sense when mobile terminal 100 is embodied as sliding-type mobile phone The sliding-type phone is to open or close.In addition, sensing unit 140 be able to detect power supply unit 190 whether provide electric power or Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 may include that proximity sensor 1410 will combine below Touch screen is described this.

Interface unit 170 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example, External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end Mouth, video i/o port, ear port etc..Identification module can be storage and use each of mobile terminal 100 for verifying user It plants information and may include subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) Etc..In addition, the device (hereinafter referred to as " identification device ") with identification module can take the form of smart card, therefore, know Other device can be connect via port or other attachment devices with mobile terminal 100.Interface unit 170, which can be used for receiving, to be come from The input (for example, data information, electric power etc.) of external device (ED) and the input received is transferred in mobile terminal 100 One or more elements can be used for transmitting data between mobile terminal and external device (ED).

In addition, when mobile terminal 100 is connect with external base, interface unit 170 may be used as allowing will be electric by it Power, which is provided from pedestal to the path or may be used as of mobile terminal 100, allows the various command signals inputted from pedestal to pass through it It is transferred to the path of mobile terminal.The various command signals or electric power inputted from pedestal, which may be used as mobile terminal for identification, is The no signal being accurately fitted on pedestal.Output unit 150 is configured to provide with vision, audio and/or tactile manner defeated Signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.) out.Output unit 150 may include display Module 151, audio output module 152, alarm modules 153 etc..

Display module 151 may be displayed on the information handled in mobile terminal 100.For example, when mobile terminal 100 is in electricity When talking about call mode, display module 151 can show and converse or other communicate (for example, text messaging, multimedia file Downloading etc.) relevant user interface (UI) or graphic user interface (GUI).When mobile terminal 100 is in video calling mode Or when image capture mode, display module 151 can show captured image and/or received image, show video or figure Picture and the UI or GUI of correlation function etc..

Meanwhile when display module 151 and touch tablet in the form of layer it is superposed on one another to form touch screen when, display module 151 may be used as input unit and output device.Display module 151 may include liquid crystal display (LCD), thin film transistor (TFT) In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least It is a kind of.Some in these displays may be constructed such that transparence to allow user to watch from outside, this is properly termed as transparent Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific Desired embodiment, mobile terminal 100 may include two or more display modules (or other display devices), for example, moving Dynamic terminal may include external display module (not shown) and internal display module (not shown).Touch screen can be used for detecting touch Input pressure and touch input position and touch input area.

Audio output module 152 can mobile terminal be in call signal reception pattern, call mode, logging mode, It is when under the isotypes such as speech recognition mode, broadcast reception mode, wireless communication unit 110 is received or in memory 160 The audio data transducing audio signal of middle storage and to export be sound.Moreover, audio output module 152 can provide and movement The relevant audio output of specific function (for example, call signal receives sound, message sink sound etc.) that terminal 100 executes. Audio output module 152 may include loudspeaker, buzzer etc..

Alarm modules 153 can provide output notifying event to mobile terminal 100.Typical event can be with Including calling reception, message sink, key signals input, touch input etc..Other than audio or video output, alarm modules 153 can provide output in different ways with the generation of notification event.For example, alarm modules 153 can be in the form of vibration Output is provided, when receiving calling, message or some other entrance communications (incomingcommunication), alarm mould Block 153 can provide tactile output (that is, vibration) to notify to user.By providing such tactile output, even if When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm modules 153 The output of the generation of notification event can be provided via display module 151 or audio output module 152.

Memory 160 can store the software program etc. of the processing and control operation that are executed by controller 180, Huo Zheke Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And And memory 160 can store about the vibrations of various modes and audio signal exported when touching and being applied to touch screen Data.

Memory 160 may include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, more Media card, card-type memory (for example, SD or DX memory etc.), random access storage device (RAM), static random-access storage Device (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read only memory (PROM), magnetic storage, disk, CD etc..Moreover, mobile terminal 100 can execute memory with by network connection The network storage device of 160 store function cooperates.

The overall operation of the usually control mobile terminal of controller 180.For example, controller 180 executes and voice communication, data Communication, video calling etc. relevant control and processing.In addition, controller 180 may include for reproducing (or playback) more matchmakers The multi-media module 1810 of volume data, multi-media module 1810 can construct in controller 180, or can be structured as and control Device 180 processed separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input executed on the touchscreen or figure Piece draws input and is identified as character or image.

Power supply unit 190 receives external power or internal power under the control of controller 180 and provides operation each member Electric power appropriate needed for part and component.

Various embodiments described herein can be to use the calculating of such as computer software, hardware or any combination thereof Machine readable medium is implemented.Hardware is implemented, embodiment described herein can be by using application-specific IC (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can Programming gate array (FPGA), controller, microcontroller, microprocessor, is designed to execute function described herein processor At least one of electronic unit is implemented, and in some cases, such embodiment can be implemented in controller 180. For software implementation, the embodiment of such as process or function can with allow to execute the individual of at least one functions or operations Software module is implemented.Software code can by the software application (or program) write with any programming language appropriate Lai Implement, software code can store in memory 160 and be executed by controller 180.

So far, oneself is through describing mobile terminal according to its function.In the following, for the sake of brevity, will description such as folded form, Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc., which is used as, to be shown Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.

Mobile terminal 100 as shown in Figure 1 may be constructed such that using via frame or grouping send data it is all if any Line and wireless communication system and satellite-based communication system operate.

Referring now to Fig. 2 description communication system that wherein mobile terminal according to the present invention can operate.

Different air interface and/or physical layer can be used in such communication system.For example, used by communication system Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system System (UMTS) (particularly, long term evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under The description in face is related to cdma communication system, but such introduction is equally applicable to other types of system.

With reference to Fig. 2, cdma wireless communication system may include multiple mobile terminals 100, multiple base stations (BS) 270, base station Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN) 290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link. Back haul link can be constructed according to any in several known interfaces, and the interface includes such as E1/T1, ATM, IP, PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system may include multiple BSC2750 as shown in Figure 2.

Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of direction specific direction Each subregion of line covering is radially far from BS270.Alternatively, each subregion can be by two or more for diversity reception Antenna covering.Each BS270, which may be constructed such that, supports multiple frequency distribution, and the distribution of each frequency has specific frequency spectrum (for example, 1.25MHz, 5MHz etc.).

What subregion and frequency were distributed, which intersects, can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly indicating single BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Alternatively, each subregion of specific BS270 can be claimed For multiple cellular stations.

As shown in Figure 2, broadcast singal is sent to the mobile terminal operated in system by broadcsting transmitter (BT) 295 100.Broadcasting reception module 111 as shown in Figure 1 is arranged at mobile terminal 100 to receive the broadcast sent by BT295 Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.The help of satellite 300 positions multiple mobile terminals At least one of 100.

In Fig. 2, multiple satellites 300 are depicted, it is understood that, it is useful to can use any number of satellite acquisition Location information.GPS module 115 as shown in Figure 1 is generally configured to cooperate with satellite 300 to obtain desired positioning and believe Breath.It substitutes GPS tracking technique or except GPS tracking technique, the other of the position that can track mobile terminal can be used Technology.In addition, at least one 300 property of can choose of GPS satellite or extraly processing satellite dmb transmission.

As a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminals 100 Signal.Mobile terminal 100 usually participates in call, information receiving and transmitting and other types of communication.Certain base station 270 is received each anti- It is handled in specific BS270 to link signal.The data of acquisition are forwarded to relevant BSC275.BSC provides call The mobile management function of resource allocation and the coordination including the soft switching process between BS270.The number that BSC275 will also be received According to MSC280 is routed to, the additional route service for forming interface with PSTN290 is provided.Similarly, PSTN290 with MSC280 forms interface, and MSC and BSC275 form interface, and BSC275 controls BS270 correspondingly with by forward link signals It is sent to mobile terminal 100.

Based on above-mentioned mobile terminal hardware configuration and communication system, each reality of battery status monitoring method of the present invention is proposed Apply example.

As shown in figure 3, proposing battery status monitoring method first embodiment of the invention, the method includes following steps It is rapid:

The thermistor voltage of S101, detection module detection battery.

The typical feature of the thermistor be it is temperature sensitive, different resistance values is shown at a temperature of different, is pressed It is divided into posive temperature coefficient thermistor (PTC) and negative tempperature coefficient thermistor (NTC) according to temperature coefficient difference.Positive temperature coefficient Thermistor resistance value when temperature is higher is bigger, and negative tempperature coefficient thermistor resistance value when temperature is higher is lower.

Above-mentioned characteristic of the present embodiment according to thermistor, the voltage of the thermistor by detecting battery, to monitor electricity The variation of pond temperature.

S102, detection module compare the size of thermistor voltage Yu battery status threshold voltage, defeated according to comparison result Corresponding level out.

The battery status threshold voltage refers to that critical voltage value when battery status changes, detection module are warmmer The size of quick resistive voltage and battery status threshold voltage exports high level or low level according to comparison result.Work as thermistor When voltage is more than battery status threshold voltage, the level of detection module output will change, such as be from high level variation Low level, or become high level from low level.

Interruption control module judges whether the level of detection module output changes, and when a change, executes step Otherwise S103 continues to be monitored the level that detection module exports.

Preferably, detection module includes at least two comparators, and each comparator corresponds to a battery status threshold voltage, in Disconnected control module includes at least two GPIO (General Purpose Input Output, universal input/output), each ratio A GPIO corresponding compared with device.Detection module compares thermistor voltage and corresponding battery status threshold voltage by each comparator Size, and export corresponding level (high level or low level) to corresponding GPIO.Interrupt module is each by each GPIO detection Whether the level of comparator output changes, and when the level of any comparator output changes, then determines detection module The level of output is changed.

S103, interruption control module triggering are interrupted.

When the level for detecting detection module output changes, illustrates that the state of battery is changed, interrupt control Molding block then triggers interruption.

In specific implementation, interruption control module includes interrupt control unit and GPIO, and interrupt control unit carries out GPIO initial Change setting, main includes transmission direction, the down trigger condition etc. of GP configuring IO.Since GPIO needs work in interrupt mode, Therefore the transmission direction of GPIO is configured to input, while it is that triggering is prolonged in rising edge and decline that down trigger mode, which is arranged, i.e., it is electric Flat change is triggering；Then the corresponding Interrupt Processing Model of setting GPIO, and register, i.e., by interrupt source and interrupt processing side Formula is bound；Finally enable interruption corresponding with GPIO in power management chip (PMIC, Power Management IC) Position.

Whether interrupt control unit is changed by the level that GPIO detects corresponding comparator output, any when detecting When the level of comparator output changes, then controls corresponding GPIO triggering and interrupt.

S104, interruption processing module response are interrupted, and the current state of battery is obtained.

Specifically, interruption processing module detect interruption control module triggering interrupt after, then call interrupt handling routine into Row interrupt response obtains the current state of battery, realizes the monitoring to battery status.

Optionally, it is current to obtain battery to can use the battery status detection mode of the prior art for interruption processing module State such as carries out battery temperature sampling processing by interrupt handling routine and obtains the current state of temperature of battery.

Preferably, interruption processing module calls corresponding interrupt handling routine to detect the voltage status of corresponding GPIO (high level state or low level state) integrates the voltage status of each GPIO to judge the current state of battery, will specifically pass through Following second and third embodiments are described in detail.

After interruption processing module obtains the current state of battery, corresponding processing method is taken immediately to protect battery or mention Wake up user.

In the present embodiment, detection module and interruption control module are hardware cells, and interruption processing module is software unit, Only when detection module detect indirectly battery status change and make interruption control module triggering interrupt when, interrupt processing mould Block is just started, and the acquisition of battery status is carried out.Compared with traditional software polling mode monitors battery temperature state, this hair Bright middle system in normal course of operation, software do not need concern battery temperature variation (such as do not need by timer week Phase property sampling battery temperature, and battery temperature is obtained to sampling and is handled), electricity is only being detected by hardware cell indirectly When pond state changes, the current state of battery is just obtained by interrupt handling routine.To greatly simplify software design Logic improves response speed, and in some battery temperature sensitivity environment, for example, to battery charge when, work as battery temperature When normal, system can enter dormant state, reduce system power dissipation, improve charge efficiency.

As shown in figure 4, proposing battery status monitoring method second embodiment of the invention, the method includes following steps It is rapid:

The thermistor voltage of S201, detection module detection battery.

S202, detection module pass through the first, second, and third comparator respectively and compare thermistor voltage V0 and battery shape The size of state threshold voltage V1, V2 and V3, and V1 > V2 > V3.

In the present embodiment, detection module includes three comparators, respectively first comparator, the second comparator and third ratio Compared with device, and each comparator corresponds to a battery status threshold voltage, it may be assumed that the corresponding first battery status threshold voltage of first comparator V1, the corresponding second battery status threshold voltage V2 of the second comparator, third comparator correspond to third battery status threshold voltage V3.

Wherein, first voltage status threshold voltage V1 corresponds to the state that battery is pulled out terminal, second voltage status threshold Voltage V2 corresponds to the too low state of battery temperature, and tertiary voltage status threshold voltage V3 corresponds to the excessively high state of battery temperature.This The thermistor of embodiment is negative tempperature coefficient thermistor, and when temperature is higher, resistance value is lower, then thermistor voltage It is lower, therefore V1 > V2 > V3.

First comparator compares the size of thermistor voltage V0 and the first battery status threshold voltage V1, the second comparator Compare the size of thermistor voltage V0 and the second battery status threshold voltage V2, third threshold voltage compares thermistor voltage The size of V0 and third battery status threshold voltage V3.

As V0 >=V1, step S203 is executed；As V2≤V0 < V1, step S206 is executed；As V3 < V0 < V2, execute Step S209；As V0≤V3, step S212 is executed.

In certain embodiments, detection module pass through comparator detect thermistor voltage and compare thermistor voltage with The size of corresponding battery status threshold voltage.

S203, detection module are by the first, second, and third comparator respectively to GPIO1, GPIO2 of interruption control module With GPIO3 output high level, high level and low level.

Specifically, the comparison result that first comparator obtains is V0 >=V1 as V0 >=V1, then high electricity is exported to GPIO1 It is flat；The comparison result that second comparator obtains is V0 > V2, then exports high level to GPIO2；The comparison knot that third comparator obtains Fruit is V0 > V3, then exports low level to GPIO3.

Meanwhile whether interruption control module is changed by the level that each GPIO judges that each comparator exports, when appointing When variation has occurred in the level of one comparator output, step S204 is executed, process is otherwise terminated.

For example, first comparator output level from low level become high level (battery from low-temperature condition become extract shape State)；Or first and second the level of comparator output become high level from low level (battery become extracting from normal condition State)；Or first and second the level of comparator output become high level from low level, and the electricity of third comparator output It is flat to become low level from high level (battery becomes extraction state from the condition of high temperature)；Or terminal each comparator first when just starting Secondary output level.

S204, interruption control module triggering are interrupted.

Specifically, the interrupt control unit of interruption control module, which controls, to be corresponded to when the level of comparator output changes GPIO trigger interrupt.

For example, the level when first comparator output becomes high level from low level, interrupt control unit controls GPIO1 triggering It interrupts；When the level of the first and second comparators output becomes high level from low level, interrupt control unit control GPIO1 and GPIO2 triggers interruption simultaneously；When the level of the first and second comparators output becomes high level from low level and third compares When the level of device output becomes low level from high level, interrupt control unit is controlled in GPIO1, GPIO2 and GPIO3 triggering simultaneously It is disconnected；When terminal has just started each comparator first time output level, interrupt control unit controls GPIO1, GPIO2 and GPIO3 simultaneously Triggering is interrupted.

The voltage status of S205, interruption processing module detection GPIO1, GPIO2 and GPIO3, obtain the current state of battery It is pulled out for battery.

Specifically, interruption processing module calls corresponding interrupt handling routine to detect GPIO1, GPIO2 and GPIO3 respectively Voltage status, the voltage status for obtaining GPIO1 and GPIO2 is high level state, and the voltage status of GPIO3 is low level shape State, to determine that the current state of battery is pulled out for battery according to preset judgment rule.

In certain embodiments, interruption processing module is when the voltage status for detecting GPIO1 is high level state, directly It connects and determines that the current state of battery is pulled out state for battery, improve treatment effeciency.

S206, detection module are by the first, second, and third comparator respectively to GPIO1, GPIO2 of interruption control module With GPIO3 output low level, high level and low level.

Specifically, it is V0 < V1 that first comparator, which obtains comparison result, as V2≤V0 < V1, then low electricity is exported to GPIO1 It is flat；It is V0 >=V2 that second comparator, which obtains comparison result, then exports high level to GPIO2；Third comparator obtains comparison result For V0 > V3, then low level is exported to GPIO3.

Meanwhile whether interruption control module is changed by the level that each GPIO judges that each comparator exports, when appointing When variation has occurred in the level of one comparator output, step S207 is executed, process is otherwise terminated.

For example, the level of first comparator output from high level becomes low level, (battery becomes low temperature shape from extraction state State)；Or second comparator output level become high level from low level (battery becomes low-temperature condition from normal condition)；Or The level of the second comparator of person output becomes high level from low level, and the level of third comparator output becomes from high level Low level (battery becomes low-temperature condition from the condition of high temperature)；Or terminal each comparator first time output level when just starting.

S207, interruption control module triggering are interrupted.

For example, interrupt control unit controls GPIO1 touching when the level of first comparator output becomes low level from high level Hair interrupts；When the level of the second comparator output becomes high level from low level, interrupt control unit is controlled in GPIO2 triggering It is disconnected；When the level of the second comparator output becomes high level from low level, and the level of third comparator output is from high level When becoming low level, interrupt control unit control GPIO1 and GPIO2 triggers interruption simultaneously；When terminal has just started each comparator first When secondary output level, interrupt control unit control GPIO1, GPIO2 and GPIO3 trigger interruption simultaneously.

The voltage status of S208, interruption processing module detection GPIO1, GPIO2 and GPIO3, obtain the current state of battery It is too low for battery temperature.

Specifically, interruption processing module calls corresponding interrupt handling routine to detect GPIO1, GPIO2 and GPIO3 respectively Voltage status, the voltage status for obtaining GPIO1 and GPIO3 is low level state, and the voltage status of GPIO2 is high level shape State, to determine that the current state of battery is too low (low-temperature condition) for battery temperature according to preset judgment rule.

S209, detection module are by the first, second, and third comparator respectively to GPIO1, GPIO2 of interruption control module Low level is exported with GPIO3.

Specifically, it is V0 < V1 that first comparator, which obtains comparison result, as V3 < V0 < V2, then low electricity is exported to GPIO1 It is flat；It is V0 < V2 that second comparator, which obtains comparison result, then exports low level to GPIO2；Third comparator obtains comparison result V0 > V3 then exports low level to GPIO3.

Meanwhile whether interruption control module is changed by the level that each GPIO judges that each comparator exports, when appointing When variation has occurred in the level of one comparator output, step S210 is executed, process is otherwise terminated.

For example, the level of the first and second comparators output from high level becomes low level, (battery becomes from extraction state Normal condition)；Or second the level of comparator output from high level become low level (battery become normal shape from low-temperature condition State)；Or the level of third comparator output becomes low level from high level (battery becomes normal condition from the condition of high temperature)； Or terminal each comparator first time output level when just starting.

S210, interruption control module triggering are interrupted.

For example, when the level of the first and second comparators output becomes low level from high level, interrupt control unit control GPIO1 and GPIO2 triggers interruption simultaneously；When the level of the second comparator output becomes low level from high level, control is interrupted Device controls GPIO2 triggering and interrupts；When the level of third comparator output becomes low level, interrupt control unit control from high level GPIO3 triggering is interrupted；When terminal has just started each comparator first time output level, interrupt control unit controls GPIO1, GPIO2 Interruption is triggered simultaneously with GPIO3.

The voltage status of S211, interruption processing module detection GPIO1, GPIO2 and GPIO3, obtain the current state of battery For normal condition.

Specifically, interruption processing module calls corresponding interrupt handling routine to detect GPIO1, GPIO2 and GPIO3 respectively Voltage status, the voltage status for obtaining GPIO1, GPIO2 and GPIO3 is low level state, to be advised according to preset judgement Then, determine that the current state of battery is normal condition.

S212, detection module are by the first, second, and third comparator respectively to GPIO1, GPIO2 of interruption control module With GPIO3 output low level, low level and high level.

Specifically, working as V0≤V3, it is V0 < V1 that first comparator, which obtains comparison result, then exports low level to GPIO1；The It is V0 < V2 that two comparators, which obtain comparison result, then exports low level to GPIO2；Third comparator obtain comparison result be V0≤ V3 then exports high level to GPIO3.

Meanwhile whether interruption control module is changed by the level that each GPIO judges that each comparator exports, when appointing When variation has occurred in the level of one comparator output, step S213 is executed, process is otherwise terminated.

For example, the level of the first and second comparators output becomes low level from high level, and the output of third comparator Level becomes high level from low level (battery becomes low-temperature condition from extraction state)；Or second comparator output level from High level becomes low level, and the level of third comparator output from low level becomes high level (battery becomes from low-temperature condition The condition of high temperature)；Or the level of third comparator output becomes high level from low level (battery becomes high temperature from normal condition State)；Or terminal each comparator first time output level when just starting.

S213, interruption control module triggering are interrupted.

For example, the level when the output of the first and second comparators becomes low level from high level, and third comparator exports Level when becoming high level from low level, interrupt control unit control GPIO1, GPIO2 and GPIO3 trigger interruption simultaneously；When The level of two comparators output becomes low level from high level, and the level of third comparator output becomes high level from low level When, interrupt control unit control GPIO2 and GPIO3 triggers interruption simultaneously；When the level of third comparator output becomes from low level High level, interrupt control unit control GPIO3 triggering and interrupt；When terminal has just started each comparator first time output level, interrupt Controller control GPIO1, GPIO2 and GPIO3 trigger interruption simultaneously.

The voltage status of S214, interruption processing module detection GPIO1, GPIO2 and GPIO3, obtain the current state of battery It is excessively high for battery temperature.

Specifically, interruption processing module calls corresponding interrupt handling routine to detect GPIO1, GPIO2 and GPIO3 respectively Voltage status, the voltage status for obtaining GPIO1 and GPIO2 is low level state, and the voltage status of GPIO3 is high level state, To determine that the current state of battery is the excessively high state of battery temperature (condition of high temperature) according to preset judgment rule.

In certain embodiments, interruption processing module is when the voltage status for detecting GPIO3 is high level state, directly The state for determining that the current state of battery is excessively high for battery temperature is connect, treatment effeciency is improved.

After interruption processing module obtains the current state of battery, corresponding processing method is taken immediately to protect battery or mention Wake up user.For example, then showing the icon or/and carry out voice prompting that battery has been extracted when detecting battery is extraction state； When detecting battery is low-temperature condition, then shows the too low alert icon of battery temperature or/and issue phonetic warning；Work as detection To battery be normal condition when, then show normal battery icon；When detecting battery is the condition of high temperature, then battery temperature is shown It spends high alert icon or/and issues phonetic warning.

To which the battery status monitoring method of the present embodiment can monitor battery and be pulled out state, low-temperature condition, high temperature The abnormalities such as state, and system, in normal course of operation, software does not need the variation of concern battery temperature, only logical When crossing hardware cell and detecting that battery status changes indirectly, the current state of battery is just obtained by interrupt handling routine. Software design logic is simplified, improves response speed, and when charging to battery, system can enter dormant state, subtract Lack system power dissipation, improves charge efficiency.

As shown in figure 5, proposing battery status monitoring method 3rd embodiment of the invention, the method includes following steps It is rapid:

The thermistor voltage of S301, detection module detection battery.

S302, detection module pass through respectively second and third comparator compare thermistor voltage V0 and battery status thresholding The size of voltage V2 and V3, and V2 > V3.

In the present embodiment, detection module includes two comparators, respectively the second comparator and third comparator, and every One comparator corresponds to a battery status threshold voltage, it may be assumed that the corresponding second battery status threshold voltage V2 of the second comparator, third ratio Third battery status threshold voltage V3 is corresponded to compared with device.

Wherein, second voltage status threshold voltage V2 corresponds to the too low state of battery temperature, tertiary voltage status threshold electricity Pressure V3 corresponds to the excessively high state of battery temperature.The thermistor of the present embodiment is negative tempperature coefficient thermistor, higher in temperature When resistance value it is lower, then thermistor voltage is also lower, therefore V2 > V3.

Second comparator compares the size of thermistor voltage V0 and the second battery status threshold voltage V2, third thresholding electricity Size of the pressure ratio compared with thermistor voltage V0 and third battery status threshold voltage V3.

As V0 >=V2, step S303 is executed；As V3 < V0 < V2, step S306 is executed；As V0≤V3, step is executed S309。

S303, detection module are exported to the GPIO2 of interruption control module and GPIO3 respectively by second and third comparator High level and low level.

Specifically, it is V0 >=V2 that the second comparator, which obtains comparison result, as V0 >=V2, then high level is exported to GPIO2； It is V0 > V3 that third comparator, which obtains comparison result, then exports low level to GPIO3.

Meanwhile whether interruption control module is changed by the level that each GPIO judges that each comparator exports, when appointing When variation has occurred in the level of one comparator output, step S304 is executed, process is otherwise terminated.

For example, the level of the second comparator output from low level becomes high level, (battery becomes low temperature shape from normal condition State)；Or second the level of comparator output become high level from low level, and the level of third comparator output is from high electricity It is flat to become low level (battery becomes low-temperature condition from the condition of high temperature)；Or terminal when just starting each comparator export electricity for the first time It is flat.

S304, interruption control module triggering are interrupted.

For example, interrupt control unit controls GPIO2 touching when the level of the second comparator output becomes high level from low level Hair interrupts；When the level of the second comparator output becomes high level from low level, and the level of third comparator output is from height When level becomes low level, interrupt control unit control GPIO1 and GPIO2 triggers interruption simultaneously；When terminal has just started each comparator When first time output level, interrupt control unit control GPIO2 and GPIO3 triggers interruption simultaneously.

The voltage status of S305, interruption processing module detection GPIO2 and GPIO3, obtaining the current state of battery is battery Temperature is too low.

Specifically, interruption processing module calls corresponding interrupt handling routine to detect the voltage shape of GPIO2 and GPIO3 respectively State, the voltage status for obtaining GPIO3 is low level state, and the voltage status of GPIO2 is high level state, thus according to preset Judgment rule determines that the current state of battery is too low (low-temperature condition) for battery temperature.

In certain embodiments, interruption processing module is when the voltage status for detecting GPIO2 is high level state, directly The state for determining that the current state of battery is too low for battery temperature is connect, treatment effeciency is improved.

S306, detection module are exported to the GPIO2 of interruption control module and GPIO3 respectively by second and third comparator Low level.

Specifically, it is V0 < V2 that the second comparator, which obtains comparison result, as V3 < V0 < V2, then low electricity is exported to GPIO2 It is flat；It is V0 > V3 that third comparator, which obtains comparison result, then exports low level to GPIO3.

Meanwhile whether interruption control module is changed by the level that each GPIO judges that each comparator exports, when appointing When variation has occurred in the level of one comparator output, step S307 is executed, process is otherwise terminated.

For example, the level of the second comparator output from high level becomes low level, (battery becomes normal shape from low-temperature condition State)；Or the level of third comparator output becomes low level from high level (battery becomes normal condition from the condition of high temperature)； Or terminal each comparator first time output level when just starting.

S307, interruption control module triggering are interrupted.

For example, interrupt control unit controls GPIO2 touching when the level of the second comparator output becomes low level from high level Hair interrupts；When the level of third comparator output becomes low level from high level, interrupt control unit controls GPIO3 triggering and interrupts； When terminal has just started each comparator first time output level, interrupt control unit control GPIO2 and GPIO3 triggers interruption simultaneously.

The voltage status of S308, interruption processing module detection GPIO2 and GPIO3, it is normal for obtaining the current state of battery State.

Specifically, interruption processing module calls corresponding interrupt handling routine to detect the voltage shape of GPIO2 and GPIO3 respectively State, the voltage status for obtaining GPIO2 and GPIO3 is low level state, to determine that battery is worked as according to preset judgment rule Preceding state is normal condition.

S309, detection module are exported to the GPIO2 of interruption control module and GPIO3 respectively by second and third comparator Low level and high level.

Specifically, working as V0≤V3, it is V0 < V2 that the second comparator, which obtains comparison result, then exports low level to GPIO2；The It is V0≤V3 that three comparators, which obtain comparison result, then exports high level to GPIO3.

Meanwhile whether interruption control module is changed by the level that each GPIO judges that each comparator exports, when appointing When variation has occurred in the level of one comparator output, step S310 is executed, process is otherwise terminated.

For example, the level of the second comparator output becomes low level from high level, and third comparator output level is from low Level becomes high level (battery becomes the condition of high temperature from low-temperature condition)；Or the level of third comparator output is from low level Become high level (battery becomes the condition of high temperature from normal condition)；Or terminal when just starting each comparator export electricity for the first time It is flat.

S310, interruption control module triggering are interrupted.

For example, when the level of the second comparator output becomes low level from high level, and third comparator output level from When low level becomes high level, interrupt control unit control GPIO2 and GPIO3 triggers interruption simultaneously；When the output of third comparator Level becomes high level from low level, and interrupt control unit controls GPIO3 triggering and interrupts；When terminal has just started each comparator for the first time When output level, interrupt control unit control GPIO2 and GPIO3 triggers interruption simultaneously.

The voltage status of S311, interruption processing module detection GPIO2 and GPIO3, obtaining the current state of battery is battery Temperature is excessively high.

Specifically, interruption processing module calls corresponding interrupt handling routine to detect the voltage shape of GPIO2 and GPIO3 respectively State, the voltage status for obtaining GPIO2 is low level state, and the voltage status of GPIO3 is high level state, thus according to preset Judgment rule determines that the current state of battery is the excessively high state of battery temperature (condition of high temperature).

In certain embodiments, the low and high level that comparator is exported according to comparison result can also be with previous embodiment phase Instead, it may be assumed that as V0 >=V1, first comparator exports low level, otherwise exports high level；As V0 >=V2, the second comparator is defeated Low level out, otherwise output high level；As V0≤V3, third comparator exports low level, otherwise exports high level.When So, at this point, the battery status of interruption processing module judgement is also on the contrary, details are not described herein.

In previous embodiment, depending on the quantity of comparator can according to need, when the battery status for needing to monitor is more, The comparator then configured is also more, it is not limited here.

The present invention further provides a kind of battery status monitoring devices, are applied to aforementioned mobile terminal.Now it is based on above-mentioned shifting Dynamic terminal hardware structure and communication system, propose each embodiment of battery status monitoring device of the present invention.

Referring to Fig. 6, battery status monitoring device first embodiment of the invention is proposed, described device includes sequentially connected Detection module, interruption control module and interruption processing module, in which:

Detection module: for detecting the thermistor voltage of battery, compare thermistor voltage and battery status thresholding electricity The size of pressure exports corresponding level according to comparison result.

In the present invention, detection module is hardware cell, according to the thermally sensitive characteristic of thermistor, passes through detection electricity The voltage of the thermistor in pond detects the state of temperature of battery indirectly.

Interruption control module: when the level for exporting when detection module changes, triggering is interrupted.

In the present invention, interruption control module is also hardware cell, judges whether the level of detection module output becomes Change, when a change, illustrates that the state of battery is changed, interruption control module then triggers interruption.

Interruption processing module: for responding the interruption, the current state of the battery is obtained.

In the present invention, interruption processing module is software unit, after detecting that interruption control module triggering is interrupted, is then called Interrupt handling routine carries out interrupt response, obtains the current state of battery, realizes the monitoring to battery status.

Preferably, interruption processing module calls corresponding interrupt handling routine to detect the corresponding GPIO of interruption control module Voltage status (high level state or low level state), the voltage status of comprehensive each GPIO judges the current state of battery, It will be specifically described in detail by following second and third embodiments.

Referring to Fig. 7, battery status monitoring device second embodiment of the invention is proposed, described device includes sequentially connected Detection module, interruption control module and interruption processing module.Wherein, interruption control module include interrupt control unit (not shown) with And GPIO2 and GPIO3；Detection module includes the second comparator and third comparator, the corresponding battery status thresholding of each comparator Voltage is respectively the second battery status threshold voltage V2 and third battery status threshold voltage V3, and V2 > V3；Interruption processing module Including the second interrupt processing unit and third interrupt processing unit.

Detection module: for detecting the thermistor of battery by each comparator and comparing thermistor and corresponding electricity The size of pond status threshold voltage exports corresponding level (high level or low electricity to corresponding GPIO respectively according to comparison result It is flat).

Specifically, high level is exported to GPIO2 by the second comparator, by the when thermistor voltage is greater than V2 Three comparators export low level to GPIO3；It is low to GPIO2 output by the second comparator when thermistor voltage is less than V3 Level exports high level to GPIO3 by third comparator.

Interruption control module: it is for controlling the level that each GPIO judges that each comparator exports respectively by interrupt control unit It is no to change, when the level of any comparator output changes, then controls corresponding GPIO triggering and interrupt.

Interruption processing module: for calling each interrupt processing unit point when detecting that interruption control module triggering is interrupted The voltage status (high level state or low level state) of each GPIO is not detected, and the level state of comprehensive each GPIO judges that battery is worked as Preceding state.

Specifically, determining when the voltage status for detecting GPIO2 by the second interrupt processing unit is high level state The current state of battery is that battery temperature is too low；When the voltage status for detecting GPIO3 by third interrupt processing unit is height When level state, determine that the current state of battery is excessively high for battery temperature.

The battery status monitoring device of the present embodiment can monitor two battery low-temperature condition, condition of high temperature abnormalities, And system, in normal course of operation, software does not need the variation of concern battery temperature, only indirect by hardware cell When detecting that battery status changes, the current state of battery is just obtained by interrupt handling routine.Simplify software design Logic improves response speed, and when charging to battery, and system can enter dormant state, reduces system power dissipation, mentions High charge efficiency.

Referring to Fig. 8, battery status monitoring device 3rd embodiment of the invention is proposed, described device includes sequentially connected Detection module, interruption control module and interruption processing module.Wherein, interruption control module include interrupt control unit (not shown) with And GPIO1, GPIO2 and GPIO3；Detection module includes first comparator, the second comparator and third comparator, each comparator pair The battery status threshold voltage answered is respectively the first battery status threshold voltage V1, the second battery status threshold voltage V2 and third Battery status threshold voltage V3, and V1 > V2 > V3；Interruption processing module includes the first interrupt processing unit, the second interrupt processing list Member and third interrupt processing unit.

Specifically, when thermistor voltage is greater than V1, by first comparator and the second comparator respectively to GPIO1 and GPIO2 exports high level, exports low level to GPIO3 by third comparator；When thermistor voltage is between V1 and V2 When, high level is exported to GPIO2 by the second comparator, by first comparator and third comparator respectively to GPIO1 and GPIO3 exports low level；When thermistor voltage is less than V3, by first comparator and the second comparator respectively to GPIO1 Low level is exported with GPIO2, high level is exported to GPIO3 by third comparator.

Interruption control module: it is for controlling the level that each GPIO judges that each comparator exports respectively by interrupt control unit It is no to change, when the level of any comparator output changes, controls corresponding GPIO triggering and interrupt.

Interruption processing module: for calling each interrupt processing unit to detect voltage status (the high level shape of each GPIO respectively State or low level state), the level state of comprehensive each GPIO judges the current state of battery.

Specifically, determining when the voltage status for detecting GPIO1 by the first interrupt processing unit is high level state The current state of battery is pulled out for battery；GPIO1 and GPIO2 are detected respectively when passing through the first and second interrupt processing units Voltage status when being respectively low level state and high level state, determine that the current state of battery is too low for battery temperature；When When detecting that the voltage status of GPIO3 is high level state by third interrupt processing unit, determine that the current state of battery is Battery temperature is excessively high.

In specific implementation, as shown in figure 9, the circuit diagram of one example of battery status monitoring device for the present embodiment.Wherein, Including battery, detection module, interruption control module and power management chip PMIC；Battery includes battery and its thermistor NTC； Detection module includes three comparator COMP1-COMP3 and corresponding divider resistance R1-R3, the corresponding battery shape of each comparator State threshold voltage is respectively V1, V2 and V3；Interruption control module includes that three universal inputs/output GPIO1-GPIO3 (interrupts control Device processed is not shown).

Initialize installation is carried out to GPIO1, GPIO2 and GPIO3 respectively first, specifically includes that the transmission side of GP configuring IO To, down trigger condition etc..Since each GPIO needs work in interrupt mode, configure the transmission direction of GPIO to defeated Enter, while it is that triggering is prolonged in rising edge and decline that down trigger mode, which is arranged,；Then the corresponding interrupt processing side each GPIO is realized Method, and register, it may be assumed that interrupt source and interruption processing method are bound；Finally enable in corresponding with each GPIO in PMIC Disconnected position.

After mobile terminal electrifying startup, comparator COMP1, COMP2 and COMP3 can be respectively compared battery status thresholding partial pressure V1, V2 and V3 and battery thermistor NTC divide V_ThermSize relation.According to comparison result, COMP1, COMP2 and COMP3 Corresponding high and low level will be exported respectively to GPIO1, GPIO2 and GPIO3.

The working principle of each hardware cell is as follows in circuit diagram:

PMIC output reference voltage V_{Therm_ref}, V_{Therm_ref}After circuit divider resistance R, it is divided into two parts: one connection To the Therm pin (being connected internally to battery thermistor NTC) of battery, secondly be connected to comparator COMP1 in detection unit, The in-phase input terminal (label+) of COMP2 and the reversed input terminal (label -) of COMP3.V_{Therm_ref}Through circuit divider resistance R Partial pressure value afterwards is V_Therm, proportionate relationship between the two is as follows:

V_Therm=V_{Therm_ref}* Rntc/ (Rntc+R) (formula 1)

Wherein, Rntc is the resistance value of thermistor NTC, and when battery temperature increases, Rntc can decline；VTherm is temperature-sensitive Resistance NTC both end voltage.By formula 1 it is found that if battery is not in place, exist: VTherm ≈ VTherm_ref.

In addition, the reference voltage V of PMIC output_{Therm_ref}Resistance value R with circuit divider resistance is steady state value (V_{Therm_ref}With PMIC is related, generally 1.8V；R plays circuit protective effect, resistance of the resistance value generally with battery thermistor NTC under normal temperature environment It is worth equal).For thermistor NTC for characterizing battery temperature, the corresponding relationship of resistance value Rntc and temperature can pass through inquiry heat Quick resistance NTC characterisitic parameter table obtains.Therefore, the both ends thermistor NTC under different battery temperatures can be calculated by formula 1 Divide V_Therm, to obtain battery temperature and partial pressure V_ThermTemperature~voltage mapping table T1.

V_{Therm_ref}After battery temperature state divider resistance R1, R2, R3, it is connected respectively to comparator COMP1, COMP2 The non-inverting input terminal (label+) of reversed input terminal (label -) and COMP3.Assuming that V1, V2, V3 therein respectively correspond electricity Pond state not in place, battery temperature cross low state, battery temperature crosses the battery status threshold voltage under high state, then threshold voltage It can be obtained by inquiring battery temperature~voltage mapping table T1 of aforementioned acquisition.Such as: it defines battery temperature and is less than -5 DEG C of correspondences Battery temperature crosses low state, then corresponding V when battery temperature is -5 DEG C is obtained from T1_ThermVoltage value, as V2.Similarly, may be used Obtain V1, V3 value.

Battery temperature state divider resistance R1, R2, R3 and Rn and V_{Therm_ref}There are following relationships:

V_{Therm_ref}* (Rn+R2+R3)/(R1+R2+R3+Rn)=V1 (formula 2)

V_{Therm_ref}* (Rn+R3)/(R1+R2+R3+Rn)=V2 (formula 3)

V_{Therm_ref}* (Rn)/(R1+R2+R3+Rn)=V3 (formula 4)

From formula 2, formula 3, formula 4 it is found that each threshold voltage there are following size relations: V1 > V2 > V3；In addition, due to V1, V2, V3 have passed through acquisition of tabling look-up, therefore can calculate the proportionate relationship between R1, R2, R3, Rn.When any resistance value is true After fixed, remaining resistance value can be calculated by proportionate relationship.

When battery is in certain state of temperature, battery V_ThermVoltage will be in some section in V1, V2, V3 threshold voltage, Such as: if there is V2 < V_ThermThe size relation of < V1, then after being calculated by detection module, COMP1, COMP3 will export low electricity Flat, COMP2 will export high level.

When the level of COMP1, COMP2 or COMP3 output changes, interrupt control unit can be controlled compared with corresponding The associated GPIO triggering of device is interrupted；After interruption processing module detects these interruptions, the interrupt processing unit of corresponding registration is called Carry out interrupt response.

Interrupt processing unit detects the voltage status of corresponding GPIO, if GPIO voltage is high level state, illustrates this When battery temperature state be more than the GPIO characterization battery temperature status threshold；If GPIO voltage is low level state, explanation Battery temperature state is also less than the battery temperature status threshold of GPIO characterization.

Such as: if COMP1 exports high level, illustrate that battery is removed, battery is in state not in place at this time；Such as Fruit COMP1 exports low level, then illustrates that battery is in place.Similarly, if COMP2 exports high level, illustrate that battery temperature is too low, Battery is in low-temperature condition at this time；If COMP1, COMP2 and COMP3 export low level, illustrate that battery temperature is normal.

After above-mentioned interrupt processing, software systems can detect rapidly the state of temperature that battery is presently in.Then root According to battery temperature testing result, Reasonable Protection is carried out to battery, avoids battery from being in excess temperature environment for a long time, battery is caused to damage Evil.After the completion of interrupt processing function, if system does not carry out power-off operation, processing is continued cycling through.

The battery status monitoring device of the present embodiment can monitor battery and be pulled out state, low-temperature condition, the condition of high temperature three A abnormality, and system, in normal course of operation, software does not need the variation of concern battery temperature, only by hard When part unit detects that battery status changes indirectly, the current state of battery is just obtained by interrupt handling routine.Simplify Software design logic, improves response speed, and when charging to battery, and system can enter dormant state, reduce System power dissipation improves charge efficiency.

Battery status monitoring device provided by the above embodiment and battery status monitoring method embodiment belong to same design, Its specific implementation process is detailed in embodiment of the method, and the technical characteristic in embodiment of the method is corresponding suitable in Installation practice With which is not described herein again.

The battery cell monitoring method and apparatus of above-described embodiment can also apply other electronics other than being applied to mobile terminal Equipment.

It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic Element.In the absence of more restrictions, the element limited by sentence " including one ... ", it is not excluded that including There is also other identical elements in the process, method of the element, article or device.

The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.

Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art The part contributed out can be embodied in the form of software products, which is stored in a storage medium In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.

The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills Art field, is included within the scope of the present invention.

Claims

1. a kind of battery status monitoring method, which is characterized in that comprising steps of

Detection module detects the thermistor voltage of battery, and the thermistor voltage is big with battery status threshold voltage It is small, corresponding level is exported according to comparison result；The detection module includes at least two comparators, respectively the second comparator With third comparator, second comparator and the corresponding battery status threshold voltage of third comparator are respectively the second electricity Pond status threshold voltage V2 and third battery status threshold voltage V3, and V2 > V3；

When the level of detection module output changes, interruption control module triggering is interrupted；It include: the interruption control Module includes at least two universal inputs/output GPIO, respectively GPIO2 and GPIO3, described in each comparator corresponding one GPIO, and to the corresponding GPIO output level；

When the thermistor voltage is greater than V2, second comparator exports high level, and the third comparator output is low Level, second comparator export high level to the GPIO2, and the third comparator exports low level to the GPIO3；

When the thermistor voltage is less than V3, second comparator exports low level, and the third comparator output is high Level, second comparator export low level to the GPIO2, and the third comparator exports high level to the GPIO3；

Interruption processing module responds the interruption, obtains the current state of the battery；Include:

When the interruption processing module detects that the voltage status of the GPIO2 is high level state, working as the battery is determined Preceding state is that battery temperature is too low；

When the interruption processing module detects that the voltage status of the GPIO3 is high level state, working as the battery is determined Preceding state is that battery temperature is excessively high.

2. battery status monitoring method according to claim 1, which is characterized in that the interruption control module further includes GPIO1, the detection module further include first comparator, and the first comparator is corresponding with the GPIO1, and described first compares The corresponding battery status threshold voltage of device is respectively the first battery status threshold voltage V1, and V1 > V2 > V3；

When the thermistor voltage is greater than V1, the first comparator and the second comparator respectively to the GPIO1 and GPIO2 exports high level, and the third comparator exports low level to the GPIO3, and the interruption processing module detects institute When the voltage status for stating GPIO1 is high level state, determine that the current state of the battery is pulled out for battery；

When the thermistor voltage is between V1 and V2, second comparator exports high level to the GPIO2, The first comparator and third comparator export low level, the interruption processing module inspection to the GPIO1 and GPIO3 respectively When measuring the voltage status of the GPIO1 and GPIO2 and being respectively low level state and high level state, working as the battery is determined Preceding state is that battery temperature is too low；

When the thermistor voltage is less than V3, the first comparator and the second comparator respectively to the GPIO1 and GPIO2 exports low level, and the third comparator exports high level to the GPIO3, and the interruption processing module detects institute When the voltage status for stating GPIO3 is high level state, determine that the current state of the battery is excessively high for battery temperature.

3. a kind of battery status monitoring device characterized by comprising

Detection module, for detecting the thermistor voltage of battery, the thermistor voltage and battery status thresholding electricity The size of pressure exports corresponding level according to comparison result；It include: that the detection module includes at least two comparators, respectively For the second comparator and third comparator, second comparator and the corresponding battery status threshold voltage of third comparator Respectively the second battery status threshold voltage V2 and third battery status threshold voltage V3, and V2 > V3；

Interruption control module, when the level for exporting when the detection module changes, triggering is interrupted；It include: in described Disconnected control module includes at least two universal inputs/output GPIO, respectively GPIO2 and GPIO3, and each comparator is corresponding One GPIO, and to the corresponding GPIO output level；

Interruption processing module obtains the current state of the battery for responding the interruption, comprising:

4. battery status monitoring device according to claim 3, which is characterized in that

The interruption control module further includes GPIO1, and the detection module further includes first comparator, the first comparator with The GPIO1 is corresponding, and the corresponding battery status threshold voltage of the first comparator is respectively the first battery status thresholding Voltage V1, and V1 > V2 > V3；

The detection module is used for: when the thermistor voltage is greater than V1, being compared by the first comparator and second Device exports high level to the GPIO1 and GPIO2 respectively, exports low level to the GPIO3 by the third comparator；When When the thermistor voltage is between V1 and V2, high level is exported to the GPIO2 by second comparator, is passed through The first comparator and third comparator export low level to the GPIO1 and GPIO3 respectively；When the thermistor voltage When less than V3, low level is exported to the GPIO1 and GPIO2 respectively by the first comparator and the second comparator, is passed through The third comparator exports high level to the GPIO3；

The interruption processing module is used for: when the voltage status for detecting the GPIO1 is high level state, determining the electricity The current state in pond is pulled out for battery；When the voltage status for detecting the GPIO1 and GPIO2 be respectively low level state and When high level state, determine that the current state of the battery is too low for battery temperature；When the voltage status for detecting the GPIO3 When for high level state, determine that the current state of the battery is excessively high for battery temperature.