CN107526036A - Battery condition monitoring device and method with Bluetooth function - Google Patents
Battery condition monitoring device and method with Bluetooth function Download PDFInfo
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- CN107526036A CN107526036A CN201610455553.5A CN201610455553A CN107526036A CN 107526036 A CN107526036 A CN 107526036A CN 201610455553 A CN201610455553 A CN 201610455553A CN 107526036 A CN107526036 A CN 107526036A
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- battery
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Classifications
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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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
Abstract
The present invention provides a kind of battery condition monitoring device and method with Bluetooth function.Include the mobile phone as host computer, the MCU system as slave computer；Described MCU system includes MCU minimum systems and peripheral circuit, and peripheral circuit includes power circuit, stand-by power supply circuit, reference voltage source circuit, AD sample circuits, battery detection circuit for access, Bluetooth transmission circuit and charactron driving display circuit；Wherein, the input power that described AD sample circuits are directly connected to battery all the way, samples to cell voltage；The another way of the input power of described reference voltage source circuit connection battery；Described battery detection circuit for access is connected into and controls Bluetooth transmission circuit.Simple in construction, reliable operation of the invention, it is that user provides the terminal voltage of battery, using status datas such as number of days, service life and use dates whenever and wherever possible by Bluetooth function, reduces accident rate, improve the security performance of battery.
Description
Technical field
The invention belongs to storage battery state indicator field, and in particular to a kind of battery condition with Bluetooth function
Monitoring device and method.
Background technology
At present, battery has wide answer in fields such as vehicle, illumination, UPS as a kind of moveable power-supply device
With.When battery tension deficiency, which continues to use, causes battery over-discharge, battery even meeting may be influenceed
Permanent damage is caused to battery.
Generally, driver or maintenance personal typically measure when detecting cell voltage with universal meter or with acidity
The acid-base value ratio of battery is measured, but often causes some unnecessary things because of not carrying with or measuring not in time
Therefore.So battery tension is detected in real time, is sent to using number of days and service life and in real time the real-time shape of battery of user
For state display just into a blank of industry, the present invention is exactly to be invented under such technical background.
The content of the invention
The technical problems to be solved by the invention are the defects of overcoming prior art, there is provided a kind of simple in construction, work can
Lean on, be that user provides the terminal voltage of battery, using number of days, service life and use date etc. whenever and wherever possible by Bluetooth function
Status data, accident rate is reduced, improve the monitoring dress of the battery condition with Bluetooth function of the security performance of battery
Put and method.
To achieve these goals, the present invention uses following technical scheme：
Battery condition monitoring device with Bluetooth function, it is characterised in that include the mobile phone as host computer, as under
The MCU system of position machine, is provided with APP softwares in mobile phone, wherein the man-machine interface of described APP softwares includes uses day
Four number, current electric quantity, the number of starts and battery health degree components；Described MCU system includes MCU minimum systems and outer
Circuit is enclosed, peripheral circuit includes power circuit, stand-by power supply circuit, reference voltage source circuit, AD sample circuits, battery and connect
Enter to detect circuit, Bluetooth transmission circuit and charactron driving display circuit；Wherein, described AD sample circuits are directly connected to electric power storage
The input power in pond all the way, samples to cell voltage；The input electricity of described reference voltage source circuit connection battery
The another way in source, being in series with transformer on the road will also pass through after supply voltage lowering and stabilizing blood pressure into 3.3V voltages, the 3.3V power supplys
Reference voltage generating circuit exports 1.25V reference voltage, to supply AD sample circuits source as the reference voltage；Described electric power storage
Pond detection circuit for access is connected into and controls Bluetooth transmission circuit, and bluetooth enters standby mode to save if no storage battery accesses power supply
About electricity, now stand-by power supply circuit output voltage outwards supply energy；Described Bluetooth transmission electric circuit inspection is to there is network company
When connecing, user's real time data can be sent on user mobile phone APP software by MCU by Bluetooth transmission circuit, refresh four components
Data.
In such scheme, described MCU minimum systems include MCU controllers, reset circuit（C21, K0 and R7）, shake
Swing circuit（C19, C20 and Y2）, low energy consumption oscillating circuit（C9, C10 and Y1）, power supply VCC, filter capacitor C5, C6, C7, C8,
C11, C12 and C13；The MCU used is a to be directed to Bluetooth（Bluetooth）Low energy consumption and the power of proprietary 2.4GHz applications
The real piece loading system of optimization, it is by can in the 8051MCU of the outstanding performance of leading RF transceivers and an industrywide standard, system
Programming flash memory memory, 8KB RAM and a lot of other powerful characteristics and peripheral combination together with, be especially suitable for ultralow
The system of energy consumption.
In such scheme, described power circuit includes current-limiting resistance R1, anti-reverse diode D1, filter capacitor
C1, C2, C3, C4, lowering and stabilizing blood pressure chip U1 and Schottky diode D2, resistance R0, power circuit provide energy for whole system.
In such scheme, described reference voltage source circuit includes chip U2 and resistance R2, reference voltage source circuit
Offer reference voltage is AD converted for MCU.
In such scheme, described stand-by power supply circuit includes 3V batteries BAT1 and Schottky diode D3, standby
Power circuit will provide for system provides energy in the non-access system of battery.
In such scheme, described AD sample circuits include precision resistance R3, R4, D4, D5 and C22；Wherein D4 and
D5 composition clamp circuits ensure that MCU I/O mouths are not disturbed pulse breakdown, and AD sample circuits are by by the analog voltage of battery
It is converted into the digital quantity that MCU can be identified and by calculating, battery tension is finally exported still in the form of digital quantity.
In such scheme, described battery detection circuit for access includes Q1, R8 and R9, battery access detection electricity
Road is to judge circuit of the battery either with or without access system, if MCU detects that battery does not access, bluetooth is in standby
State is to save electricity.
In such scheme, described Bluetooth transmission circuit includes electric capacity C14, C15, C16, C17, C18 and inductor wire
Circle L1, L2, L3, L4 composition transmission antenna is sent out and received 2.4GHZ network signals.
In such scheme, described charactron driving display circuit includes three eight sections of common anode charactrons LDP1, PNP
Triode Q2, Q3, Q4 and NPN triode Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, resistance R10, R11, R12, R13, R14,
R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31 and C23；Its
In, PNP triode Q2, Q3, Q4 composition bit code controlling switch, resistance R10, R11, R12, R13, R14, R15 form its biased electrical
Road, NPN triode Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12 composition segment encode controlling switch, resistance R10, R11, R12, R13,
R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31 form it
Biasing circuit, when MCU is with low level wheel scan flow DC1, DC2, DC3 position, corresponding LC1, LC2, LC3 position exports high level,
The Digital sum pipe gate, MCU to LA, LB, LC, LD, LE, LF, LG, LP output segment encode control level when, accordingly DA, DB,
DC, DD, DE, DF, DG, DP obtain segment encode, so as to show 0 to 9 certain bit digital or character in the Digital sum pipe.
In such scheme, the man-machine interface of described APP softwares includes using number of days, current electric quantity, startup time
Number and four plates of battery health degree, most descend column to also have One-key navigation ", online shopping mall's column.
The monitoring method and principle of the present invention is as follows：
The battery number of starts detects realization principle：When the moment that battery is connected with external load, battery loop current will
Sharply increase, while the pressure drop consumed in its internal resistance will steeply rise, external circuit voltage will strongly reduce, MCU A/D samplings
Real-time capture to this change and is recorded the number of this change by circuit, and own internal memory EEPROM is arrived on the one hand storage
It is middle to be used for next processing data, this change frequency is on the other hand passed through into three connected eight sections of common anode charactrons and carried out
Display.
Battery is calculated using number of days and life-span：After battery successfully starts up 10 times, start from the 11st start recording
Number（1st startup）, and start the use date that MCU internal real time clocks record this time, add up uses day on this basis
Number, send LED charactrons to show testing result.When having detected network connection, start Bluetooth transmission function by user data
It is sent to by APP softwares on user mobile phone.
Battery health degree detects：Health degree detection of the present invention to battery is by the current full of battery
The ratio of the specified electric quantity of charge volume and battery calculates.Experience have shown that the open-circuit voltage of battery and the electricity of battery
There is quantitative relationship in amount, the present invention calculates the electricity ratio of battery so as to calculate the health of battery by open circuit voltage method
Degree, its calculation formula is：During the full charge amount of current battery,
SOC=(V1-V2)/(V0-V2)
Wherein, V0 --- open-circuit voltage is completely filled in dispatching from the factory for manufacturer's offer；
Open-circuit voltage is filled in current the expiring of V1 --- battery；
V2 --- open-circuit voltage when battery is substantially discharged；
The present invention is by adopting the above-described technical solution, have the advantages that：
Simple in construction, reliable operation of the invention, it is that user provides the terminal voltage of battery, use whenever and wherever possible by Bluetooth function
The status datas such as number of days, service life and use date, accident rate is reduced, improve the security performance of battery, be a kind of
Preferable means for indicating condition of accumulator.
Brief description of the drawings
Fig. 1 is the overall structure figure of the embodiment of the present invention；
In figure：1-MCU minimum system 2-power circuit, 3-stand-by power supply circuit, 4-reference voltage source circuits, 5-AD is adopted
8-charactron of sample circuit 6-battery detection circuit for access 7-Bluetooth transmission circuit drives 10-mobile phone of display circuit.
Embodiment
In order that present disclosure is readily apparent understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail.
The battery condition monitoring device of Bluetooth function is carried as shown in Figure 1, is included the mobile phone 10 as host computer, is made
For the MCU system of slave computer, APP softwares are installed in mobile phone 10, made wherein the man-machine interface of described APP softwares includes
With four number of days, current electric quantity, the number of starts and battery health degree components；Described MCU system includes MCU minimum systems
1 and peripheral circuit, peripheral circuit include power circuit 2, stand-by power supply circuit 3, reference voltage source circuit 4, AD sample circuits
5th, battery detection circuit for access 6, Bluetooth transmission circuit 7 and charactron driving display circuit 8；Wherein, described AD samplings electricity
Road 5 is directly connected to the input power of battery all the way, and cell voltage is sampled；Described reference voltage source circuit 4 connects
Connect the another way of the input power of battery, be in series with the road transformer by after supply voltage lowering and stabilizing blood pressure into 3.3V voltages,
The 3.3V power supplys are also by reference voltage generating circuit output 1.25V reference voltage, to supply AD sample circuits 5 as reference
Voltage source；Described battery detection circuit for access 6 is connected into and controls Bluetooth transmission circuit 7, if no storage battery accesses power supply
Bluetooth enters standby mode to save electricity, and now the output voltage of stand-by power supply circuit 3 outwards supplies energy；Described bluetooth passes
When transmission of electricity road 7 has detected network connection, user's real time data can be sent to by MCU minimum systems 1 by Bluetooth transmission circuit 7
On the APP softwares of mobile phone 10, refresh the data of four components.
In the present embodiment, described MCU minimum systems 1 include MCU controllers, reset circuit（C21, K0 and R7）、
Oscillating circuit（C19, C20 and Y2）, low energy consumption oscillating circuit（C9, C10 and Y1）, power supply VCC, filter capacitor C5, C6, C7, C8,
C11, C12 and C13；The MCU used is a to be directed to Bluetooth（Bluetooth）Low energy consumption and the power of proprietary 2.4GHz applications
The real piece loading system of optimization, it is by can in the 8051MCU of the outstanding performance of leading RF transceivers and an industrywide standard, system
Programming flash memory memory, 8KB RAM and a lot of other powerful characteristics and peripheral combination together with, be especially suitable for ultralow
The system of energy consumption.
In the present embodiment, described power circuit 2 includes current-limiting resistance R1, anti-reverse diode D1, filter capacitor
C1, C2, C3, C4, lowering and stabilizing blood pressure chip U1 and Schottky diode D2, resistance R0, power circuit provide energy for whole system.
In the present embodiment, described reference voltage source circuit 4 includes chip U2 and resistance R2, reference voltage source circuit
Offer reference voltage is AD converted for MCU.
In the present embodiment, described stand-by power supply circuit 3 includes 3V batteries BAT1 and Schottky diode D3, standby
Power circuit will provide for system provides energy in the non-access system of battery.
In the present embodiment, described AD sample circuits 5 include precision resistance R3, R4, D4, D5 and C22；Wherein D4 and
D5 composition clamp circuits ensure that MCU I/O mouths are not disturbed pulse breakdown, and AD sample circuits are by by the analog voltage of battery
It is converted into the digital quantity that MCU can be identified and by calculating, battery tension is finally exported still in the form of digital quantity.
In the present embodiment, described battery detection circuit for access 6 includes Q1, R8 and R9, battery access detection
Circuit is to judge circuit of the battery either with or without access system, if MCU detects that battery does not access, bluetooth is in and treated
Machine state is to save electricity.
In the present embodiment, described Bluetooth transmission circuit 7 includes electric capacity C14, C15, C16, C17, C18 and inductor wire
Circle L1, L2, L3, L4 composition transmission antenna is sent out and received 2.4GHZ network signals.
In the present embodiment, described charactron driving display circuit 8 include three eight sections of common anode charactron LDP1,
PNP triode Q2, Q3, Q4 and NPN triode Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, resistance R10, R11, R12, R13,
R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31 and C23；
Wherein, PNP triode Q2, Q3, Q4 forms bit code controlling switch, and resistance R10, R11, R12, R13, R14, R15 form its biasing
Circuit, NPN triode Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12 composition segment encode controlling switch, resistance R10, R11, R12, R13,
R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31 form it
Biasing circuit, when MCU is with low level wheel scan flow DC1, DC2, DC3 position, corresponding LC1, LC2, LC3 position exports high level,
The Digital sum pipe gate, MCU to LA, LB, LC, LD, LE, LF, LG, LP output segment encode control level when, accordingly DA, DB,
DC, DD, DE, DF, DG, DP obtain segment encode, so as to show 0 to 9 certain bit digital or character in the Digital sum pipe.
In the present embodiment, the man-machine interface of the APP softwares of described mobile phone 10 includes using number of days, current electricity
Amount, four plates of the number of starts and battery health degree, most descend column to also have One-key navigation ", online shopping mall's column.
The implementation and principle of the embodiment of the present invention be：When the moment that battery is connected with external load, battery returns
Road electric current will sharply increase, while the pressure drop consumed in its internal resistance will steeply rise, and external circuit voltage will strongly reduce, MCU
A/D sample circuits real-time capture to this change and is recorded into the number of this change, on the one hand storage is deposited to therein
It is used in reservoir EEPROM for next processing data, on the other hand this change frequency is passed through to three connected eight sections of common anodes
Charactron is shown.
Battery is calculated using number of days and life-span：After battery successfully starts up 10 times, start from the 11st start recording
Number（1st startup）, and start the use date that MCU internal real time clocks record this time, add up uses day on this basis
Number, send LED charactrons to show testing result.When having detected network connection, start Bluetooth transmission function by user data
It is sent to by APP softwares on user mobile phone.
Battery health degree detects：Health degree detection of the present invention to battery is by the current full of battery
The ratio of the specified electric quantity of charge volume and battery calculates.Experience have shown that the open-circuit voltage of battery and the electricity of battery
There is quantitative relationship in amount, the present invention calculates the electricity ratio of battery so as to calculate the health of battery by open circuit voltage method
Degree, its calculation formula is：During the full charge amount of current battery,
SOC=(V1-V2)/(V0-V2)
Wherein, V0 --- open-circuit voltage is completely filled in dispatching from the factory for manufacturer's offer；
Open-circuit voltage is filled in current the expiring of V1 --- battery；
V2 --- open-circuit voltage when battery is substantially discharged；
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect carried out entering one
Step describes in detail, should be understood that the specific embodiment that the foregoing is only the present invention, is not limited to this hair
It is bright, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., it should be included in the present invention
Protection domain within.
Claims (10)
1. the battery condition monitoring device with Bluetooth function, it is characterised in that include the mobile phone as host computer, conduct
The MCU system of slave computer, APP softwares are installed in mobile phone, wherein the man-machine interface of described APP softwares includes uses day
Four number, current electric quantity, the number of starts and battery health degree components；Described MCU system includes MCU minimum systems and outer
Circuit is enclosed, peripheral circuit includes power circuit, stand-by power supply circuit, reference voltage source circuit, AD sample circuits, battery and connect
Enter to detect circuit, Bluetooth transmission circuit and charactron driving display circuit；Wherein, described AD sample circuits are directly connected to electric power storage
The input power in pond all the way, samples to cell voltage；The input electricity of described reference voltage source circuit connection battery
The another way in source, being in series with transformer on the road will also pass through after supply voltage lowering and stabilizing blood pressure into 3.3V voltages, the 3.3V power supplys
Reference voltage generating circuit exports 1.25V reference voltage, to supply AD sample circuits source as the reference voltage；Described electric power storage
Pond detection circuit for access is connected into and controls Bluetooth transmission circuit, and bluetooth enters standby mode to save if no storage battery accesses power supply
About electricity, now stand-by power supply circuit output voltage outwards supply energy；Described Bluetooth transmission electric circuit inspection is to there is network company
When connecing, user's real time data can be sent on user mobile phone APP software by MCU by Bluetooth transmission circuit, refresh four components
Data.
2. the battery condition monitoring device according to claim 1 with Bluetooth function, it is characterised in that described
MCU minimum systems include MCU controllers, reset circuit C21, K0 and R7, oscillating circuit C19, C20 and Y2, low energy consumption vibration
Circuit C9, C10 and Y1, power supply VCC, filter capacitor C5, C6, C7, C8, C11, C12 and C13.
3. the battery condition monitoring device according to claim 1 with Bluetooth function, it is characterised in that described electricity
Source circuit includes current-limiting resistance R1, anti-reverse diode D1, filter capacitor C1, C2, C3, C4, lowering and stabilizing blood pressure chip U1 and Xiao
Special based diode D2, resistance R0, power circuit provide energy for whole system.
4. the battery condition monitoring device according to claim 1 with Bluetooth function, it is characterised in that described base
Reference voltage source circuit includes chip U2 and resistance R2, and reference voltage source circuit is that MCU is AD converted offer reference voltage.
5. the battery condition monitoring device according to claim 1 with Bluetooth function, it is characterised in that described is standby
Include 3V batteries BAT1 and Schottky diode D3 with power circuit, stand-by power supply circuit will be provided in battery not for system
Energy is provided during access system.
6. the battery condition monitoring device according to claim 1 with Bluetooth function, it is characterised in that described AD
Sample circuit includes precision resistance R3, R4, D4, D5 and C22；Wherein D4 and D5 composition clamp circuits ensure MCU I/O mouths not
Disturbed pulse breakdown, AD sample circuits are by being converted into digital quantity that MCU can identify by the analog voltage of battery and leading to
Calculating is crossed, battery tension is finally exported still in the form of digital quantity.
7. the battery condition monitoring device according to claim 1 with Bluetooth function, it is characterised in that described storage
Battery detection circuit for access includes Q1, R8 and R9, and battery detection circuit for access is to judge battery either with or without access system
Circuit, if MCU detects that battery does not access, bluetooth is in holding state to save electricity.
8. the battery condition monitoring device according to claim 1 with Bluetooth function, it is characterised in that described indigo plant
Tooth transmission circuit includes electric capacity C14, C15, C16, C17, C18 and inductance coil L1, L2, L3, L4 composition transmission antenna are outside
Send and receive 2.4GHZ network signals.
9. the battery condition monitoring device according to claim 1 with Bluetooth function, it is characterised in that described number
Code pipe driving display circuit include three eight sections of common anode charactron LDP1, PNP triode Q2, Q3, Q4 and NPN triode Q5,
Q6, Q7, Q8, Q9, Q10, Q11, Q12, resistance R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21,
R22, R23, R24, R25, R26, R27, R28, R29, R30, R31 and C23；Wherein, PNP triode Q2, Q3, Q4 forms bit code control
System switch, resistance R10, R11, R12, R13, R14, R15 form its biasing circuit, NPN triode Q5, Q6, Q7, Q8, Q9, Q10,
Q11, Q12 form segment encode controlling switch, resistance R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21,
R22, R23, R24, R25, R26, R27, R28, R29, R30, R31 form its biasing circuit, when MCU is with low level wheel scan flow
When DC1, DC2, DC3 position, corresponding LC1, LC2, LC3 position exports high level, Digital sum pipe gating, MCU to LA, LB, LC,
When LD, LE, LF, LG, LP output segment encode control level, segment encode is obtained in DA, DB, DC, DD, DE, DF, DG, DP accordingly, so as to
0 to 9 certain bit digital or character are shown in the Digital sum pipe.
10. using the battery condition monitoring method of device as claimed in claim 1, it is characterised in that when battery and outside
Connect the moment of load connection, when battery loop current will sharply increase, MCU A/D sample circuit real-time capture internal resistances and electricity
The change of pressure, and the number of this change is recorded, on the one hand storage handles number into own internal memory EEPROM for next time
According to being used, this change frequency is on the other hand passed through into three connected eight sections of common anode charactrons and shown；
Battery is calculated using number of days and life-span：After battery successfully starts up 10 times, from the 11st start recording number of starts
As the 1st startup, and start the use date that MCU internal real time clocks record this time, add up uses number of days on this basis,
Send LED charactrons to show testing result, when having detected network connection, start Bluetooth transmission function and pass through user data
APP softwares are sent on user mobile phone；
Battery health degree detects：Health degree detection to battery is with storing by the current full charge amount to battery
The ratio of the specified electric quantity of battery calculates, and the open-circuit voltage of battery and the electricity of battery have quantitative relationship, by opening
Road voltage method calculates the electricity ratio of battery so as to calculate the health degree of battery, and its calculation formula is：Current electric power storage
During the full charge amount in pond,
SOC=(V1-V2)/(V0-V2)
Wherein, V0 --- open-circuit voltage is completely filled in dispatching from the factory for manufacturer's offer；
Open-circuit voltage is filled in current the expiring of V1 --- battery；
V2 --- open-circuit voltage when battery is substantially discharged.
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| CN201610455553.5A CN107526036A (en) | 2016-06-22 | 2016-06-22 | Battery condition monitoring device and method with Bluetooth function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308238A (en) * | 2020-02-07 | 2020-06-19 | 中电科信息产业有限公司 | Battery simulator and system of electric bicycle and charger detection method |
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| CN111308238A (en) * | 2020-02-07 | 2020-06-19 | 中电科信息产业有限公司 | Battery simulator and system of electric bicycle and charger detection method |
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