CN103746148B - A kind of lead-acid power accumulator automatic management device - Google Patents
A kind of lead-acid power accumulator automatic management device Download PDFInfo
- Publication number
- CN103746148B CN103746148B CN201310701863.7A CN201310701863A CN103746148B CN 103746148 B CN103746148 B CN 103746148B CN 201310701863 A CN201310701863 A CN 201310701863A CN 103746148 B CN103746148 B CN 103746148B
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- Prior art keywords
- lead
- power accumulator
- management device
- supplemental characteristic
- acid power
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/33—User authentication using certificates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The open a kind of lead-acid power accumulator automatic management device of the present invention, including: data base, it is used for storing digital certificate, safeguards the digital certificate in described data base by administration interface；Acquisition module, the supplemental characteristic being gathered lead-acid power accumulator by two-wire system is uploaded to described data base；Encryption Decryption module, is used for using described digital certificate be encrypted supplemental characteristic and/or decipher；Data processing module, for paying independent password to described Encryption Decryption module, sends described result to display after receiving described supplemental characteristic and processing described supplemental characteristic；Display, is used for receiving described result and described result being shown.The invention provides a kind of lead-acid power accumulator automatic management device, use digital certificate supplemental characteristic is encrypted and/or deciphers, to realize the safety management to device, improve the safety of lead-acid power accumulator automatic management device.
Description
Technical field
The present invention relates to a kind of automatic management device, particularly to a kind of lead-acid power accumulator automatic management device.
Background technology
It is to solve the maximally effective scheme of automobile atmospheric pollution using accumulator as the electric automobile of the energy.The extensive Industrialization Progress of the means of transport such as the various electric bicycle of China, motorcycle, automobile, tour bus was by global concern in recent years.
Lead-acid accumulator industry is closely bound up with industry developments such as electric power, traffic, information, in the means of transports such as automobile, tour bus, electric motor car and large-scale uninterruption power source system, it is in critical role, is indispensable in social production business activities and human lives.China's battery industry is in large scale, is widely used, the problem (such as sulfuration, capacity reduction, shortening in service life etc.) brought in view of the improper use of lead-acid accumulator, it is achieved the intelligent management of accumulator seems the most necessary.
Electromobile battery management system be a monitor set, control with management be integrated electrical control system.
Battery management system in early days the most only has monitoring cell voltage, temperature, the simple functions of electric current.The popularization applied in electric motor car along with advanced battery, the requirement to battery management system is more and more higher, and the function of battery management system is more and more stronger.Electric motor car cause flourish, brings very strong driving force to the development of battery management technique.The understanding of battery is strengthened by people, and the management to battery is the most effective, and battery management system gradually changes to management system from monitoring system.The domestic development pole to electric motor car is for paying attention to, just the exploitation development of electric motor car was listed in national " eight or five " emphasis key scientific and technological projects as far back as 1992, the exploitation of long-term in-depth study has been carried out for battery management system and charger system, the biggest breakthrough is obtained in terms of BMS, also it is closer to foreign level, developing products is used on pure electronic and hybrid-power electric vehicle in a large number, but battery management technique is also and immature.The development of electric automobile and industrialization, will have the huge market demand to power accumulator management system, technically also will propose higher requirement simultaneously.These researchs are mainly in some colleges and universities, and they rely on the scientific and technological advantage of oneself, combine some big car manufactures and battery supplier conducts a research jointly.Lithium ion battery management system major function such as Tongji University and Beijing star constant cells company limited has: electric current, voltage and the collection of battery module temperature, and SOC estimates, automatic equalization, accident treatment and record etc..Beijing Jiaotong University was devoted to battery management system research from 1993 always, in terms of SOC estimation, successively have employed OCV-SOC corresponding relation, Ah counting adds self discharge, charge efficiency etc. and revises, and uses the Forecasting Methodology (successful application is to Second Automobile Works's mixed power electric car) of double card Kalman Filtering；Through effort for many years, Beijing Jiaotong University's battery management system has stable performance, good reliability, accuracy of detection is high, function is complete, facilitate the advantages such as durable.Along with electric automobile research and the continuous intensification of use nearly ten years, more external big car manufactures and battery supplier have made numerous studies and test for various batteries, sum up the mathematical model of battery, and successfully develop many battery management system dresses and try out onboard.BADICHEQ system such as Germany can carry out voltage, electric current and temperature survey to 20 battery units simultaneously, according to battery unit, the charging current of main charger can be controlled, with a little charger, single battery can be carried out equalizaing charge, historical data can be stored and carry out data communication with PC, battery dump energy can be shown and various exceptions can be reported to the police.Villanova university of the U.S. and US Nanocorp company SOC to all kinds battery for many years carries out prediction based on fuzzy logic.The research about battery charge state SOC abroad is the relation finding out SOC and these parameters by measuring the external parameters such as the electric current of battery, voltage mostly, indirectly to measure the SOC value of battery.The most conventional has open-circuit voltage method, capacity cumulative method, internal resistance of cell method etc., and the algorithm of some complexity such as neutral net and Kalman filtering method is also in progressively research and development simultaneously.
The online SOC of Vehicular battery estimates the international difficult problem being well recognized as, and numerous domestic and international experts and scholars successively propose many solutions.From initial OCV-SOC(open cir-cuit voltage-state of charge), coulomb metering and temperature, charge-discharge magnification, charge efficiency correction or comprehensive above section or all carry out the estimation of SOC.Advanced algorithm occurs, the most in succession such as fuzzy logic algorithm model, adaptive neural network fuzzy inference model, Kalman Filter Estimation model algorithm and emerging linear model method and impedance spectroscopy etc..Although people have carried out substantial amounts of effort, but effect is unsatisfactory, all existing defects, it is impossible to reach actually used requirement.It is relevant that this is primarily due to the factors such as the SOC of set of cells and temperature, charge-discharge magnification, previous moment charging and discharging state, polarity effect, battery life, and shows the strongest non-linear, brings the biggest difficulty to the estimation of SOC real-time online.People come to realise the internal work mechanism of battery and external characteristics considers, and are modeled battery being only the basic way solving battery SOC estimation.
The SOC estimation of battery and SOH assessment are not met by vehicle and battery actual demand is the defect that present battery manages that system is maximum, this performance directly influencing battery and battery life and the cornering ability of electric automobile and the popularization of electric motor car cause.So from the internal mechanism of battery and external characteristics, battery carried out the self-adapting estimation technology of comprehensive modeling and model parameter thereof from the electrochemistry of battery, calorifics and electricity, utilizes battery model that the SOC of battery is estimated and SOH assessment technology, battery optimization charge and discharge control algorithm and equalizaing charge technology are battery management system problem demanding prompt solutions, be also main development direction from now on.Developing rapidly along with high-tech, microelectric technique has been widely applied to each scientific domain.
Inventor finds during research, complexity due to accumulator charging/discharging process, battery management system can not the voltage of monitored over time accumulator, electric current, temperature and the aggregate-value of discharge and recharge, therefore cannot ensure accumulator will not because of overcharge and over-discharge and have the allotted portion of life reduced by having or getting more than one deserves, battery management system can not provide accumulator dump energy (SOC-State 0f more accurately
Charge) estimating, performance parameter, owing to being placed in data base, also arbitrarily can be obtained by people, poor stability.
Summary of the invention
The present invention provides a kind of lead-acid power accumulator automatic management device, it can overcome the deficiencies in the prior art, use digital certificate supplemental characteristic is encrypted and/or deciphers, to realize the safety management to device, improve the safety of lead-acid power accumulator automatic management device.
A kind of lead-acid power accumulator automatic management device that the embodiment of the present invention provides, including:
Data base, is used for storing digital certificate, safeguards the digital certificate in described data base by administration interface；
Acquisition module, the supplemental characteristic being gathered lead-acid power accumulator by two-wire system is uploaded to described data base；
Encryption Decryption module, is used for using described digital certificate be encrypted supplemental characteristic and/or decipher；
Data processing module, for paying independent password to described Encryption Decryption module, sends described result to display after receiving described supplemental characteristic and processing described supplemental characteristic；
Display, is used for receiving described result and described result being shown.
Described data base, including: certificate table and certificate status table.
Described administration interface includes uploading PKI and private key；
This device also includes alarm module, reports to the police for starting when described result is beyond predetermined value.
Described beyond predetermined value for overvoltage occurring, crossing the abnormal conditions such as stream, under-voltage or high temperature.
This device also includes power module.
The present invention provides a kind of lead-acid power accumulator automatic management device, it can overcome the deficiencies in the prior art, use digital certificate supplemental characteristic is encrypted and/or deciphers, to realize the safety management to device, improve the safety of lead-acid power accumulator automatic management device.
Accompanying drawing explanation
A kind of lead-acid power accumulator automatic management device schematic diagram that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
Below the detailed description of the invention of the embodiment of the present invention is described in detail:
As it is shown in figure 1, this device mainly includes with lower part:
Data base, is used for storing digital certificate, safeguards the digital certificate in described data base by administration interface；
Acquisition module, the supplemental characteristic being gathered lead-acid power accumulator by two-wire system is uploaded to described data base；
Encryption Decryption module, is used for using described digital certificate be encrypted supplemental characteristic and/or decipher；
Data processing module, for paying independent password to described Encryption Decryption module, sends described result to display after receiving described supplemental characteristic and processing described supplemental characteristic；
Display, is used for receiving described result and described result being shown.
Described data base, including: certificate table and certificate status table.
Described administration interface includes uploading PKI and private key；
This device also includes alarm module, reports to the police for starting when described result is beyond predetermined value.
Described beyond predetermined value for overvoltage occurring, crossing the abnormal conditions such as stream, under-voltage or high temperature.
This device also includes power module.
The present invention provides a kind of lead-acid power accumulator automatic management device, it can overcome the deficiencies in the prior art, use digital certificate supplemental characteristic is encrypted and/or deciphers, to realize the safety management to device, improve the safety of lead-acid power accumulator automatic management device.
Now with STC89C52 and DS2438 as main chip; real-time monitoring to lead acid storage battery cell voltage, electric current, temperature and dump energy; and the self-protection of the signal feasible system by collecting; make this system can improve the service life of accumulator; reduce maintenance cost, it is also possible to be provided with to the personnel of driving and use information.
The battery that tour bus accumulator often group is often saved 12V by 6 joints is composed in series.Owing to each single battery there are differences, and the performance of set of cells is determined by worst single battery, so detecting system needs detection often to save the state of accumulator.Due to series connection each accumulator DC potential the most altogether, can not directly hang over unified bus transmitting data, so light-coupled isolation the to be taked measure of each DS2438 data acquisition board, and one wire system is changed into sending and receiving two-wire system, it is hung in sending and receiving both threads and communicates with single-chip microcomputer.Battery sampling data are delivered to single-chip microcomputer and are processed, and result passes through liquid crystal display, when battery exception being detected, sends alarm signal by buzzer.
Acquisition module mainly uses DS2438 to be acquired the various parameters of battery, and chip need to be close to battery to gather battery temperature.Tour bus accumulator battery is to be in series by the battery of 6 pieces of every piece of 12V, and total voltage is 72V.Due to series connection each accumulator DC potential the most altogether, it is impossible to be articulated in unified bus transmitting data, so each DS2438 collection plate needs to take light-coupled isolation measure, one wire system changed into sending and receiving two-wire system, mounts respectively on line.Optocoupler used herein is 6N135.
Through the above description of the embodiments, those skilled in the art is it can be understood that can add the mode of required general hardware platform by software to the present invention and realize, naturally it is also possible to by hardware, but a lot of in the case of the former is more preferably embodiment.Based on such understanding, the part that prior art is contributed by technical scheme the most in other words can embody with the form of software product, this computer software product is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in each embodiment of the present invention.
The several specific embodiments being only the present invention disclosed above, but, the present invention is not limited to this, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (4)
1. a lead-acid power accumulator automatic management device, it is characterised in that including:
Data base, is used for storing digital certificate, safeguards the digital certificate in described data base by administration interface；Described data base includes certificate table and certificate status table；Described administration interface includes uploading PKI and private key；
Acquisition module, the supplemental characteristic being gathered lead-acid power accumulator by two-wire system is uploaded to described data base；
Encryption Decryption module, is used for using described digital certificate be encrypted supplemental characteristic and/or decipher；
Data processing module, for paying independent password to described Encryption Decryption module, sends result to display after receiving described supplemental characteristic and processing described supplemental characteristic；
Display, is used for receiving described result and described result being shown.
A kind of lead-acid power accumulator automatic management device the most according to claim 1, it is characterised in that this device also includes alarm module, reports to the police for starting when described result is beyond predetermined value.
A kind of lead-acid power accumulator automatic management device the most according to claim 2, it is characterised in that described is overvoltage, excessively stream, the under-voltage or abnormal conditions of high temperature occur beyond predetermined value.
A kind of lead-acid power accumulator automatic management device the most according to claim 1, it is characterised in that this device also includes power module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310701863.7A CN103746148B (en) | 2013-12-19 | 2013-12-19 | A kind of lead-acid power accumulator automatic management device |
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| CN201310701863.7A CN103746148B (en) | 2013-12-19 | 2013-12-19 | A kind of lead-acid power accumulator automatic management device |
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| Publication Number | Publication Date |
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| CN103746148A CN103746148A (en) | 2014-04-23 |
| CN103746148B true CN103746148B (en) | 2016-08-17 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI545863B (en) | 2014-05-21 | 2016-08-11 | 廣達電腦股份有限公司 | Battery protection system and battery protection method |
| CN107437638B (en) * | 2017-02-20 | 2020-08-07 | 安徽科微智能科技有限公司 | Battery protection system based on variable plaintext and variable key AES encryption |
| CN107843850A (en) * | 2017-12-07 | 2018-03-27 | 智灵飞（北京）科技有限公司 | The forecasting system and method for multi-rotor unmanned aerial vehicle Universal lithium-cell dump energy |
| CN109941151B (en) * | 2019-01-30 | 2022-06-10 | 重庆海尔空调器有限公司 | Parking air conditioner and service life early warning method and system of vehicle battery |
| CN113263956A (en) * | 2021-04-23 | 2021-08-17 | 云南汇龙科技集团有限公司 | Electric motor car battery detects PCB circuit board device |
| CN117458678B (en) * | 2023-12-25 | 2024-03-26 | 广东奥克莱集团有限公司 | Active equalization battery management system for lead-acid battery pack |
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| CN102205800A (en) * | 2011-02-25 | 2011-10-05 | 南京华博科技有限公司 | Intelligent battery management system of electric car |
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|---|---|---|---|---|
| JP2009151953A (en) * | 2007-12-18 | 2009-07-09 | Mitsumi Electric Co Ltd | Battery pack, and electronic apparatus |
| JP5585188B2 (en) * | 2010-04-30 | 2014-09-10 | ソニー株式会社 | Battery module, electric vehicle, and battery module discharge control method |
| CN102036164B (en) * | 2010-09-30 | 2014-02-05 | 国家电网公司 | Method, device and system for acquiring power battery information |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101438219A (en) * | 2006-03-10 | 2009-05-20 | 爱特梅尔公司 | Random number generator in a battery pack |
| CN101887985A (en) * | 2009-05-15 | 2010-11-17 | 张明 | Digital cell network |
| CN102205800A (en) * | 2011-02-25 | 2011-10-05 | 南京华博科技有限公司 | Intelligent battery management system of electric car |
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