CN101826221A - Electric digital display charging-discharging circulating accumulated multifunctional recorder of electric bicycle - Google Patents
Electric digital display charging-discharging circulating accumulated multifunctional recorder of electric bicycle Download PDFInfo
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- CN101826221A CN101826221A CN200910068006A CN200910068006A CN101826221A CN 101826221 A CN101826221 A CN 101826221A CN 200910068006 A CN200910068006 A CN 200910068006A CN 200910068006 A CN200910068006 A CN 200910068006A CN 101826221 A CN101826221 A CN 101826221A
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Abstract
The invention belongs to the technical field of electric bicycles, in particular to application of an electronic technology in the field of power battery management of electric bicycles and relates to an electric digital display charging-discharging circulating accumulated multifunctional recorder of an electric bicycle. The recorder is internally provided with a signal preprocessor, a voltage-stabilizing circuit, a real-time clock circuit, a singlechip, an LED display circuit and an RS232 level conversion circuit, wherein an AD conversion circuit, a memory and a serial communication port are integrated inside the singlechip. The recorder is connected with a power battery and a controller of an external electric bicycle or can communicate with a PC. The use degree of the battery can be correctly and effectively estimated, the after-sale service can be performed according to the standard of the use degree, and the invention has low construction cost and higher practical value.
Description
Technical field
The invention belongs to the technical field of electric bicycle, is the application of electronic technology in electric bicycle electrokinetic cell management domain, relates to a kind of battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder.
Background technology
Electric bicycle obtains being extensive use of of people as the green traffic instrument.As the power of electric bicycle, battery is used in a large number, has therefore promoted the sale and the use of battery.But because technology, to the general after sale policy that adopts by time (18 months) guarantee of electrokinetic cell, this mode exists drawback.Such as the certain user just with Moped Scooter as the short distance walking-replacing tool, use mileage less at ordinary times, in quality guarantee period, its battery loss is considerably less; And that the moving vehicle using motor of some user power utilization runs is professional, as send express delivery, food delivery etc., these users' Moped Scooter throughout the year month after month be in higher load condition, battery very easily damages, these users often can change the several battery in quality guarantee period.Such quality guarantee policy has guaranteed that some should not enjoy the user's of excess quality guarantee undesired service, has slackened the user's of the proper quality guarantee of this enjoyment rights and interests, makes that also selling manufacturer need provide service for some are irrational after sale.Therefore, how correct estimating battery usage degree effectively carries out the after sale service of battery as standard, becomes a urgent problem.
It is more that domestic relevant battery of electric bicycle discharges and recharges the report that record, cycle life test, have different characteristics respectively, Zheng Lin (Shunda Computer Factory Co., Ltd., Shunde District, Foshan City). battery discharging time recorder and method .CN 101192689,2008-06-04, document discloses the method for a kind of battery discharge time record of Shunda Computer Factory Co., Ltd., Shunde District, Foshan City invention, and this method comprises the steps: default battery discharge end voltage value; Measure and the opening entry battery discharge time, and shown; Voltage when gathering battery discharge; Magnitude of voltage when transmitting the battery discharge of gathering and battery discharge time are to computing machine; Judge that whether default battery discharge end voltage value equates with the magnitude of voltage of the discharge of reading from the battery place, if equate, then finishes the measurement to battery discharge time; If default battery discharge end voltage value is unequal with the magnitude of voltage of the discharge of reading from the battery place, then continue battery discharge is measured till the cell voltage discharge off.Can be very easily the discharge scenario of battery be measured by this invention, and can observe the discharge time of battery intuitively, have good practical value.
Yu Jiangren, king wingceltis osmanthus (Zhejiang Yiyuan Optoelectronic Co., Ltd.). a kind of electric bike battery electric quantity display system .CN 200986955,2007-12-05, a kind of electric bike battery electric quantity display system of Zhejiang Yiyuan Optoelectronic Co., Ltd.'s invention is disclosed, comprise accumulator, be connected with the current sample module on the accumulator, be connected with power management chip on the current sample module, power management chip is communicated with display module; Power management chip is provided with power consumption register and dump energy register; The dump energy parameter of dump energy register counting shows by display module.This system can accurately show the dump energy in the electromobile battery, can be widely used in the electric bicycle industry.
Bruce Lee (Huawei Tech Co., Ltd). the method for recording cell work information, battery and electronic product thereof and charger .CN 1858805,2006-11-08, a kind of method that writes down the TunePower job information of Huawei Tech Co., Ltd's invention is disclosed, the electronic product of battery and application thereof and charger, mainly be by the register that at least one is used to write down the TunePower job information is set in electronic product, the charging times of this recorder trace TunePower, the job informations relevant such as charging duration with TunePower, by the numerical value of query note device record, can determine the job information of TunePower.Can be easier to judge by this invention whether battery arrives the time limit in serviceable life or really have problems and be that battery that use habit causes by the user goes wrong.
Jiang Xiancan. a kind of battery electric quantity checking device .CN 2906637 of electric bicycle, 2007-05-30 discloses a kind of battery electric quantity checking device of electric bicycle, comprising: current detection circuit, extremely link to each other with battery one, its output terminal connects multiplier; Voltage detecting circuit is connected between multiplier and the anode; Clock generator is connected with totalizer with multiplier, for multiplier and totalizer provide clock signal; Multiplier, the time interval value three that the magnitude of voltage that voltage detecting circuit is measured, the current value that current detection circuit is measured and clock generator produce is multiplied each other, and the output terminal of product connects totalizer; Totalizer, every the product accumulation of a time interval value with multiplier output, its result sends to display unit by output terminal; Current direction detector extremely links to each other with battery one, and its output terminal connects totalizer, is used to control the computing that totalizer adds deduct to current data.This battery electric quantity checking device can be correct the demonstration battery electric quantity, allow the operable time of user's exact grasp electric bicycle.
Http:// www.hzdk.com/? action-viewnews-itemid-34 Hangzhou De Kang battery repair instrument company limited " cycle life tester DK36. " has reported the battery cycle life tester of Hangzhou De Kang battery repair instrument company limited, be applicable to accumulator combination performance test, comprise: capacity, cycle life, charge-discharge characteristic etc.Products characteristics: utilization single-chip microcomputer Based Intelligent Control and precise measurement and control technology; Adopt friendly Chinese liquid crystal interface, be convenient to man-machine conversation; Multiple charge and discharge workflow is available; Cycle index and sampling interval can be provided with flexibly; Have printing function and USB flash disk data-interface.
Shanghai prestige inscription electric mechanical equipment company limited. accumulator electric performance test instrument (cycling life test machine), http://www.cps800.com/products/3078.htm has reported the accumulator electric performance test instrument (cycling life test machine) of Shanghai prestige inscription electric mechanical equipment company limited, is applicable to the all-round property testing and the life test of all kinds single battery or battery pack.Various accumulators and accumulator (group) are detected battery capacity, charging and discharging cycle life, charge acceptance, the charging of constant voltage threshold currents, constant current charge, constant current discharge.
Lin Zhiqi opens and mocks logical (Changchun Polytechnic Univ.). secondary cell cycle life detector. and battery, 2008,38 (4): 244-246 has reported that Changchun Polytechnic Univ. has designed secondary cell cycle life detector.Detector is a core with single-chip microcomputer C8051F320, can carry out constant current charge-discharge to battery, by measuring junction voltage, realizes the conversion discharge and recharge, and real time record, analytical voltage information, and the discharge curve that draws is tested automatically to the cycle life of battery.
In sum, the domestic bibliographical information of not seeing a kind of battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder that technology such as using SOC (system on a chip) technology, software control and administrative skill, hardware and software Anti-Jamming Technique and numeral demonstration is developed.
Summary of the invention
The objective of the invention is to design a kind of and cheap, electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder with stronger practical value, core content of the present invention are that charge and discharge cycles number of times, the mistake of record battery put number of times and accumulated discharge total amount.
Provide a kind of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder in order to reach purpose of the present invention, it is characterized in that wherein single-chip microcomputer inside is integrated with A/D convertor circuit, storer, serial communication interface at the inner signalization pre-service of registering instrument, mu balanced circuit, real time clock circuit, processor of single chip computer, LCD display circuit, RS232 level shifting circuit.Registering instrument is connected with external electric bicycle electrokinetic cell, controller, also can carry out communication with PC.
The general voltage of the battery of electric bicycle is 36V or 48V, can not directly supply with registering instrument and use.36V that mu balanced circuit provides the battery of electric bicycle or 48V voltage step-down offer whole registering instrument and use to 5V.General vehicle electric circuitry includes battery and controller, and registering instrument takes out the voltage and current signal in original circuit.Voltage and current signal entering signal preprocessing part is input to the input end of operational amplifier by 3 electric resistance partial pressures.Operational amplifier is amplified to faint voltage signal between 0～5V.The voltage of handling enters into the AD converter that processor of single chip computer comprises, and AD converter every the regular time interval, is transformed to corresponding data with voltage signal under the control of processor of single chip computer.Processor of single chip computer deposits data in the Flash storer according to certain form.Real time clock circuit offers the processor of single chip computer temporal information, and processor of single chip computer can carry out data-switching according to the time interval of setting.The battery capacity value that the LCD display circuit obtains with real-time electric current and voltage information and through the processor of single chip computer computing etc. shows.Serial ports can linkage record instrument and PC, and the record that registering instrument is preserved that can be real-time sends to PC.Because PC serial ports level and processor of single chip computer serial ports level are inconsistent, so in design, realize two sides' level conversion by level shifting circuit.
Described battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder, the serial ports level that it is characterized in that described single-chip microcomputer is a Transistor-Transistor Logic level, what the PC serial ports was used is the RS232 interface.
Described electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder is characterized in that described processor of single chip computer is based on the single-chip microcomputer of SOC (system on a chip).
Described battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder is characterized in that signal preprocessor is made up of resistance pressure-dividing network and operational amplifier.
Described electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder is characterized in that real time clock circuit is made up of external crystal oscillator and realtime clock chip.
Described battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder is characterized in that the LCD display circuit is made up of the LCD MODULE and the backlight drive circuit of the HD44780 compatibility of standard.
The major technique characteristics of battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder of the present invention are: 1. the integration by battery discharge current obtains the accumulated discharge electric weight, the counting cell residual capacity, the battery capacity value that comparison prestores, counting cell charge and discharge cycles number of times, and counting cell overdischarge number of times.2. the data of registering instrument can send PC to by the RS232 interface.3. use the uPSD32XX family chip of ST company, preserve the current value of measuring in real time, be used for the analysis of battery user mode.4. LCD shows: battery dump energy; Charge and discharge cycles cumulative number (changeable); Overdischarge number of times (changeable); Real-time clock; Calendar (changeable); Electric weight is crossed low report to the police (buzzing); The accumulated discharge electric weight.Core content of the present invention is that charge and discharge cycles number of times, the mistake of record battery put number of times and accumulated discharge total amount.
The power unit of registering instrument is by electronic powered battery.The current and voltage signals connecting system of while electrokinetic cell part, current and voltage signals is transformed to suitable input signal through Signal Pretreatment and translation circuit, is transformed to digital signal corresponding through A/D convertor circuit again.The CPU of registering instrument is according to certain time interval (as 1 second) reading of data from AD converter, and these data according to fixed format deposit storer in after CPU is converted to actual current/voltage value.Behind full 60 of the record, CPU gathers data, calculate the electric weight of the discharge of electric motor car for the previous period and the electric weight that charges into, registering instrument takes out residual electric quantity and the accumulated discharge charge value in the storer then, original residual electric quantity deducts discharge electricity amount and adds the electric weight that charges into, calculate the dump energy that makes new advances, original accumulated discharge electric weight adds that discharge electricity amount obtains new accumulated discharge electric weight.When the calculated value of accumulated discharge electric weight during greater than a predefined charge and discharge cycles charge value, the charge and discharge cycles number of times adds 1, and the accumulated discharge electric weight makes zero.If dump energy in use occurs less than 0 o'clock, registering instrument will write down abnormal information one time, shows that battery passed through the improper operation of putting.The charge and discharge cycles number of times multiply by a predefined charge and discharge cycles charge value can draw the accumulated discharge total amount, the battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder of wood invention has solved correctly estimating battery usage degree effectively, the problem of carrying out the after sale service of battery as standard.
Description of drawings
Fig. 1 is a battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder composition frame chart of the present invention.
Fig. 2 is the Signal Pretreatment and the mapped structure figure of the system of the embodiment of the invention.
Fig. 3 is the level shifting circuit structural drawing of the system of the embodiment of the invention.
Fig. 4 is the software function block diagram of the system of the embodiment of the invention.
Fig. 5 is the real time clock circuit structural drawing of the system of the embodiment of the invention.
Embodiment
Fig. 1 is a battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder composition frame chart of the present invention.Fig. 2 is the Signal Pretreatment and the mapped structure figure of the system of the embodiment of the invention.Fig. 3 is the level shifting circuit structural drawing of the system of the embodiment of the invention.Fig. 4 is the software function block diagram of the system of the embodiment of the invention.Fig. 5 is the real time clock circuit structural drawing of the system of the embodiment of the invention.As shown in the figure, battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder of the present invention is at the inner signalization pre-service of registering instrument, mu balanced circuit, real time clock circuit, single-chip microcomputer, LCD display circuit, RS232 level shifting circuit, and wherein single-chip microcomputer inside is integrated with A/D convertor circuit, storer, serial communication interface.Registering instrument is connected with external electric bicycle electrokinetic cell, controller, also can carry out communication with PC.
The general voltage of the battery of electric bicycle is 36V or 48V, can not directly supply with registering instrument and use.36V that mu balanced circuit provides the battery of electric bicycle or 48V voltage step-down offer whole registering instrument and use to 5V.General vehicle electric circuitry includes battery and controller, and registering instrument takes out the voltage and current signal in original circuit.Voltage and current signal entering signal preprocessing part is input to the input end of operational amplifier by 3 electric resistance partial pressures.Operational amplifier is amplified to faint voltage signal between 0～5V.The voltage of handling enters into the AD converter that processor of single chip computer comprises, and AD converter every the regular time interval, is transformed to corresponding data with voltage signal under the control of processor of single chip computer.Processor of single chip computer deposits data in the Flash storer according to certain form.Real time clock circuit offers the processor of single chip computer temporal information, and processor of single chip computer can carry out data-switching according to the time interval of setting.The battery capacity value that the LCD display circuit obtains with real-time electric current and voltage information and through the processor of single chip computer computing etc. shows.Serial ports can linkage record instrument and PC, and the record that registering instrument is preserved that can be real-time sends to PC.Because PC serial ports level and processor of single chip computer serial ports level are inconsistent, so in design, realize two sides' level conversion by level shifting circuit.
The serial ports level of its single-chip microcomputer is a Transistor-Transistor Logic level, and what the PC serial ports was used is the RS232 interface.
Its processor of single chip computer is based on the single-chip microcomputer of SOC (system on a chip).
Its signal preprocessor is made up of resistance pressure-dividing network and operational amplifier.
Its real time clock circuit is made up of external crystal oscillator and realtime clock chip.
Its LCD display circuit is made up of the LCD MODULE and the backlight drive circuit of the HD44780 compatibility of standard.
The design's one-piece construction composition is seen Fig. 1, and wherein battery, former controller, PC belong to the outer part of design.Battery is the detected object of registering instrument, and simultaneously also for registering instrument provides power supply, battery is powered to registering instrument through mu balanced circuit, and voltage signal, the current signal of battery are removed simultaneously, send into the Signal Pretreatment part of registering instrument.Every data message of registering instrument record can be passed to PC by PORT COM.In registering instrument inside, the voltage of battery, current signal enter the inner integrated A/D convertor circuit of single-chip microcomputer after handling by Signal Pretreatment and translation circuit.Real time clock circuit can provide detailed temporal information to system, and the Single-chip Controlling AD converter is carried out data sampling in particular time interval (as 1 second).Single-chip microcomputer calculates according to the data of sampling, obtains actual voltage, current value, and data are saved in the storer.Registering instrument is every regular hour (as 1 minute), can calculate the data of sampling, draw last minute discharge electricity amount and charge capacity, original residual electric quantity deducts discharge electricity amount and adds that the electric weight that charges into calculates new dump energy, original accumulated discharge electric weight adds that discharge electricity amount obtains new accumulated discharge electric weight, and every information can be sent to LCD and show.As required, the data of registering instrument can send PC to, and the serial ports level of single-chip microcomputer is a Transistor-Transistor Logic level, and what the PC serial ports was used is the RS232 interface, and design has a level shifting circuit in the circuit.
The hardware ingredient is as follows: the schematic diagram of signal pre-processing circuit is seen accompanying drawing 2.This circuit is linked in the electric vehicle system according to accompanying drawing 2.R13 is one section constantan wire, and resistance is less, and is very little to original influence circuit, the electric current of the battery R13 that flows through, and according to U=I*R, the pressure drop on the R13 changes along with the variation of electric current, and voltage amplifies by operational amplifier.R11, R12, R13 are serially connected between positive source and the ground among the figure, and R13 is less, and R11, R12 are bigger, and so while R11=R12 is the inverting input of operational amplifier (2 pin of U1A) voltage U
2=0.5VCC+U
R13, R14, R15 are serially connected between power supply and the ground among the figure, and so while R14=R15 is U
3=0.5VCC can get the 2nd pin of operational amplifier and the voltage difference between the 3rd pin thus and equal U
R13R7 is the feedback resistance of operational amplifier, and the resistance of adjusting R7 can be adjusted the enlargement factor of operational amplifier.The output signal ADCO of operational amplifier sends into the inner integrated AD converter port of single-chip microcomputer.C4, C5 improve the interference free performance of system among the figure.Because the voltage of battery, current signal change comparatively fast in power system, R8 and C3 play the effect of integration, reduce systematic error.
Level shifting circuit as shown in Figure 3, employing be general chip max232, it becomes the RS232 level signal with the Transistor-Transistor Logic level conversion of signals of single-chip microcomputer output, makes PC can normally receive information.
LCD shows: battery dump energy; Charge and discharge cycles cumulative number (changeable); Overdischarge number of times (changeable); Real time clock; Calendar (changeable); Electric weight is crossed low report to the police (buzzing); The accumulated discharge electric weight.
Software comprises following part: system initialization module, data sampling parsing module, data summarizing module, prompting and alarm module, data memory module, communication module.
Initialization module is used for the required all kinds of raw informations of initialization system, as battery capacity, charging deboost, final voltage, rated current, system works pattern, initial cells residual capacity, accumulated discharge electric weight, maximum cycle, super-charge super-discharge number of times etc.
The data sampling parsing module is used to control AD converter and carries out analog to digital conversion, calculates actual numerical value, and this numerical value is saved in the storer.
The data summarizing module gathers the data of preserving, obtain discharge electricity amount and the charge capacity of corresponding time period, registering instrument takes out residual electric quantity and the accumulated discharge charge value in the storer then, original residual electric quantity deducts discharge electricity amount and adds that the electric weight that charges into calculates new dump energy, and original accumulated discharge electric weight adds that discharge electricity amount obtains new accumulated discharge electric weight.When the calculated value of accumulated discharge electric weight during greater than a predefined charge and discharge cycles charge value, the charge and discharge cycles number of times adds 1, and the accumulated discharge electric weight makes zero.If residual capacity in use occurs less than 0 o'clock, registering instrument will write down abnormal information one time, shows that battery passed through the improper operation of putting.This module also is responsible for corresponding information is offered prompting and alarm module.
Communication module is the bridge that native system and computing machine carry out communication, data can be passed to PC.
The workflow of initialization module is as follows: read the mode register in the storer, if the demonstration current state is an initialize mode, enters setting, otherwise withdraw from.Set condition need be set information such as battery rated capacity, charging deboost, final voltage, rated current, system works pattern, initial cells dump energy, battery accumulated discharge electric weight, maximum cycle, super-charge super-discharge number of times respectively, after setting finishes, program is revised as duty with the mode register in the storer, withdraws from this module then.
Data sampling parsing module workflow is as follows: judge whether to satisfy time interval requirement (1 second 1 time at interval), do not satisfy and just withdraw from, the words that satisfy are just sent instruction, allow the AD circuit read the output voltage of operational amplifier, current value, then according to enlargement ratio, migration parameter etc. calculate actual cell voltage, current value, at last the data that obtain are saved in the storer, withdraw from this module.
Data summarizing module workflow is as follows: judge whether to satisfy time interval requirement (1 minute 1 time at interval), do not satisfy and just withdraw from, the words that satisfy just read the current value of all data sampling parsing modules preservation in last minute, with negative value addition wherein, the numerical value that obtains is exactly last minute discharge electricity amount value, read accumulated discharge electric weight in the storer,, obtain the accumulated discharge charge value above-mentioned two charge value additions.When the calculated value of accumulated discharge electric weight during greater than a predefined charge and discharge cycles charge value, the charge and discharge cycles number of times adds 1, and the accumulated discharge electric weight makes zero.With last minute all sampled values (comprise on the occasion of and negative value) and residual electric quantity addition, obtain new dump energy, if dump energy less than 0, registering instrument will write down abnormal information one time, shows that battery passed through the improper operation of putting.Charge and discharge cycles number of times charge and discharge cycles number of times multiply by a predefined charge and discharge cycles charge value can draw the accumulated discharge total amount.
Communication module adopts the mode of interrupting to work.After system obtains instruction that PC transmits, module will read the data in the storage, send it to PC.
The power unit of this registering instrument is by electronic powered battery.The current and voltage signals connecting system of while electrokinetic cell part, current and voltage signals is transformed to suitable input signal through Signal Pretreatment and translation circuit, is transformed to digital signal corresponding through A/D convertor circuit again.The CPU of registering instrument is according to certain time interval (as 1 second) reading of data from AD converter, and these data according to fixed format deposit storer in after CPU is converted to actual current/voltage value.Behind full 60 of the record, CPU gathers data, calculate the electric weight of the discharge of electric motor car for the previous period and the electric weight that charges into, registering instrument takes out residual electric quantity and the accumulated discharge charge value in the storer then, original residual electric quantity deducts discharge electricity amount and adds the electric weight that charges into, calculate the dump energy that makes new advances, original accumulated discharge electric weight adds that discharge electricity amount obtains new accumulated discharge electric weight.When the calculated value of accumulated discharge electric weight during greater than a predefined charge and discharge cycles charge value, the charge and discharge cycles number of times adds 1, and the accumulated discharge electric weight makes zero.If dump energy in use occurs less than 0 o'clock, registering instrument will write down abnormal information one time, shows that battery passed through the improper operation of putting.Charging and discharging cycle index multiply by a predefined charge and discharge cycles charge value and can draw the accumulated discharge total amount.Design parameter index: use voltage range: 36V～48V; Volume calculation error:＜5%; Usable range :-20 ℃～50 ℃.
This device has following functions: (1) directly powers by battery of electric bicycle. (2) inside comprises real time clock circuit, can provide correct time information to system. (3) voltage, electric current, capacity information show by LCD in real time. (4) data can connect PC by serial ports, and detailed battery applications information can be provided.
Claims (6)
1. electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder, it is characterized in that wherein single-chip microcomputer inside is integrated with A/D convertor circuit, storer, serial communication interface at the inner signalization pre-service of registering instrument, mu balanced circuit, real time clock circuit, processor of single chip computer, LCD display circuit, RS232 level shifting circuit; Registering instrument is connected with external electric bicycle electrokinetic cell, controller, also can carry out communication with PC.
2. battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder according to claim 1, the serial ports level that it is characterized in that described single-chip microcomputer is a Transistor-Transistor Logic level, what the PC serial ports was used is the RS232 interface.
3. electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder according to claim 1 is characterized in that described processor of single chip computer is based on the single-chip microcomputer of SOC (system on a chip).
4. battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder according to claim 1 is characterized in that signal preprocessor is made up of resistance pressure-dividing network and operational amplifier.
5. electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder according to claim 1 is characterized in that real time clock circuit is made up of external crystal oscillator and realtime clock chip.
6. battery of electric bicycle digital display charging-discharging circulating accumulated multifunctional recorder according to claim 1 is characterized in that the LCD display circuit is made up of the LCD MODULE and the backlight drive circuit of the HD44780 compatibility of standard.
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| CN200910068006A CN101826221A (en) | 2009-03-03 | 2009-03-03 | Electric digital display charging-discharging circulating accumulated multifunctional recorder of electric bicycle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155610A (en) * | 2014-07-28 | 2014-11-19 | 西北农林科技大学 | Recorder for storage battery condition |
| CN105739377A (en) * | 2015-12-26 | 2016-07-06 | 惠州市蓝微新源技术有限公司 | Circuit for transmitting and receiving CAN data information by using common I/O ports of single-chip microcomputer and control method |
| CN106602626A (en) * | 2015-10-20 | 2017-04-26 | 苏州宝时得电动工具有限公司 | Method and system for processing battery data |
-
2009
- 2009-03-03 CN CN200910068006A patent/CN101826221A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155610A (en) * | 2014-07-28 | 2014-11-19 | 西北农林科技大学 | Recorder for storage battery condition |
| CN106602626A (en) * | 2015-10-20 | 2017-04-26 | 苏州宝时得电动工具有限公司 | Method and system for processing battery data |
| CN105739377A (en) * | 2015-12-26 | 2016-07-06 | 惠州市蓝微新源技术有限公司 | Circuit for transmitting and receiving CAN data information by using common I/O ports of single-chip microcomputer and control method |
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Application publication date: 20100908 |