CN104767001A - Battery management system - Google Patents

Battery management system Download PDF

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Publication number
CN104767001A
CN104767001A CN201510194863.1A CN201510194863A CN104767001A CN 104767001 A CN104767001 A CN 104767001A CN 201510194863 A CN201510194863 A CN 201510194863A CN 104767001 A CN104767001 A CN 104767001A
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CN
China
Prior art keywords
battery
management system
battery management
running parameter
parameter
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Pending
Application number
CN201510194863.1A
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Chinese (zh)
Inventor
杜雄豪
齐国光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Purple Light Rui Kong Science And Technology Ltd
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Beijing Purple Light Rui Kong Science And Technology Ltd
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Publication date
Application filed by Beijing Purple Light Rui Kong Science And Technology Ltd filed Critical Beijing Purple Light Rui Kong Science And Technology Ltd
Priority to CN201510194863.1A priority Critical patent/CN104767001A/en
Publication of CN104767001A publication Critical patent/CN104767001A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/14—Preventing excessive discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/60—Electric or hybrid propulsion means for production processes
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to a battery management system. The battery management system comprises a monitoring device, a mobile terminal and a cloud processor, wherein the monitoring device is used for detecting and transmitting working parameters of each single battery in real time when the battery is charged or discharged, comparing the working parameters of the single battery with the standard parameters, automatically adjusting the working state of the single battery when the working parameter exceeds the standard parameters and transmitting alarming information; the mobile terminal receives and displays the alarming information; the cloud processor receives and stores the working parameters. The invention aims at providing the battery management system, the voltage and temperature of the single battery are monitored and recorded in real time, the working state of a battery pack and the charging-discharging times are detected, and the integral temperature of the battery pack is detected, so that the working state of a charging-discharging device and a heating device is controlled, the functions such as battery quantity management, temperature management, fault pre-judgment and diagnosis and the like can be realized, and the safety and reliability of the battery can be guaranteed; a great amount of data is stored in a cloud server and can be pushed to enterprises for producing the battery or he battery management system users.

Description

Battery management system
Technical field
The present invention relates to battery management system, be specifically related to a kind of battery management system of electric automobile.
Background technology
Along with the appearance of energy crisis, the electric automobile of clean environment firendly receives increasing concern, and the research enthusiasm of electric automobile has entered into unprecedented high-tide period, and the electric automobile enterprise of domestic production emerges in an endless stream.
Battery management system is the important means that electrokinetic cell service behaviour ensures.Battery management system makes battery performance and lifetime, fully ensure that the runnability of battery, can give battery protection again simultaneously.
Existing battery management system only has the function detecting the voltage of battery pack, temperature, electric current, and the functions such as the basic parameter detection of battery, estimation, communication interface, control and data record are all failed well perfect.Insulation monitoring, discharge and recharge number of times record, battery failures analysis and the function such as to report to the police online are all failed well perfect.
Summary of the invention
The object of this invention is to provide a kind of battery management system, native system and mobile device directly carry out radio communication, and mobile device is as man-machine interface, simple to operate.
The object of this invention is to provide a kind of battery management system, the voltage of native system Real-Time Monitoring and record batteries and temperature, calculate total voltage and the total current of battery pack, detect the operating state of battery pack and the number of times of discharge and recharge, detect the bulk temperature of battery pack, thus control the operating state of discharge and recharge, heater element, realize the functions such as managing electric quantity, temperature treatment, fault anticipation and diagnosis, thus ensure that cell safety reliably works.
The object of this invention is to provide a kind of battery management system, a large amount of data are stored in Cloud Server, can be pushed to and produce the enterprise of battery or the user of battery management system, by the analysis to these data, the characteristic of battery used can be understood more accurately, find more accurate SOC estimation model, find extending battery life, improve the strategies such as the validity of charging.Such as, neural network can be adopted find more accurate SOC estimation model.
The object of the invention is to be achieved through the following technical solutions:
A kind of battery management system, comprise: monitoring equipment, be used for when battery charge or discharge detecting in real time and the running parameter sending each single battery, and compare with canonical parameter, the operating state of auto-control single battery when described running parameter is above standard parameter, concurrent alarming information of delivering newspaper; Mobile terminal, receives and shows described warning message; Cloud processor, receives and stores described running parameter.
Further, described monitoring equipment comprises several cell measurement block, described cell measurement block is for detecting the running parameter of single battery, described cell measurement block transfers data to processor module by CAN, running parameter described in described processor module process, and sending control command when described running parameter exceeds the scope of canonical parameter, described control command controls the operating state occurring the single battery of abnormal work parameter.
Further, described processor module calculates the running parameter of battery pack after receiving the running parameter of whole single battery.
Further, described running parameter comprises cell voltage, battery current, battery temperature and battery electric quantity.
Further, in described monitoring equipment, also comprise interface module, for accessing charging device or current consuming apparatus.
Further, described cloud processor carries out information interaction by WIFI signal or cellular signal and described mobile terminal or monitoring equipment.
Further, information interaction is carried out by Bluetooth signal between described mobile terminal and monitoring equipment.
Further, described mobile terminal is at least one in panel computer, mobile phone, notebook computer.
Accompanying drawing explanation
Basis below accompanying drawingto this inventionbe described in further detail.
fig. 1this invention is realexecute the structure square frame of routine described battery management system figure;
fig. 2be fig. 1the structure square frame of middle monitoring equipment figure.
Embodiment
as Fig. 1shown in, a kind of battery management system described in the embodiment of the present invention, comprises following structure:
Monitoring equipment, be used for when battery charge or discharge detecting in real time and the running parameter sending each single battery, and compare with canonical parameter, the operating state of auto-control single battery when described running parameter is above standard parameter, concurrent alarming information of delivering newspaper.
Mobile terminal, receives and shows described warning message, and described mobile terminal is at least one in panel computer, mobile phone, notebook computer.
Cloud processor, receives and stores described running parameter, and described cloud processor is desktop computer.
Described cloud processor carries out information interaction by WIFI signal or cellular signal and described mobile terminal or monitoring equipment, carries out information interaction between described mobile terminal and monitoring equipment by Bluetooth signal.
as Fig. 2shown in, described monitoring equipment comprises several cell measurement block, described cell measurement block is for detecting the running parameter of single battery, described cell measurement block transfers data to processor module and wireless transport module by CAN, running parameter described in described processor module process, and send control command when described running parameter exceeds the scope of canonical parameter, described control command controls the operating state occurring the single battery of abnormal work parameter, and the running parameter received is converted to wireless signal and sends by described wireless transport module; Described processor module calculates the running parameter of battery pack after receiving the running parameter of whole single battery; Described running parameter comprises cell voltage, battery current, battery temperature and battery electric quantity.Also interface module is comprised, for accessing charging device or current consuming apparatus in described monitoring equipment.
In charge or discharge process, by measuring voltage, electric current, the temperature of each battery, calculate total voltage and total current, compare with total voltage, total current and the battery pack temperature detected by monitoring equipment, can detect whether battery circuit goes wrong, the battery parameter provided according to producer again compares, thus detect instant fault, such as overvoltage, under-voltage, too high or too low for temperature, the alarm diagnosis of electric leakage etc.
According to the mass data stored in this battery pack running, judge that certain batteries may go wrong, or whole battery pack will lose efficacy, then according to the battery behavior that producer provides, the SOC algorithm obtained calculates.Along with the data accumulated in the running of battery management system, we can find better algorithm.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection scope of the present invention.

Claims (8)

1. a battery management system, is characterized in that, comprising:
Monitoring equipment, be used for when battery charge or discharge detecting in real time and the running parameter sending each single battery, and compare with canonical parameter, the operating state of auto-control single battery when described running parameter is above standard parameter, concurrent alarming information of delivering newspaper;
Mobile terminal, receives and shows described warning message;
Cloud processor, receives and stores described running parameter.
2. battery management system according to claim 1, it is characterized in that: described monitoring equipment comprises several cell measurement block, described cell measurement block is for detecting the running parameter of single battery, described cell measurement block transfers data to processor module by CAN, running parameter described in described processor module process, and sending control command when described running parameter exceeds the scope of canonical parameter, described control command controls the operating state occurring the single battery of abnormal work parameter.
3. battery management system according to claim 2, is characterized in that: described processor module calculates the running parameter of battery pack after receiving the running parameter of whole single battery.
4. according to the battery management system in claim 1-3 described in any one, it is characterized in that: described running parameter comprises cell voltage, battery current, battery temperature and battery electric quantity.
5. battery management system according to claim 1, is characterized in that: also comprise interface module in described monitoring equipment, for accessing charging device or current consuming apparatus.
6. battery management system according to claim 1, is characterized in that: described cloud processor carries out information interaction by WIFI signal or cellular signal and described mobile terminal or monitoring equipment.
7. battery management system according to claim 1, is characterized in that: carry out information interaction by Bluetooth signal between described mobile terminal and monitoring equipment.
8. battery management system according to claim 1, is characterized in that: described mobile terminal is at least one in panel computer, mobile phone, notebook computer.
CN201510194863.1A 2015-04-22 2015-04-22 Battery management system Pending CN104767001A (en)

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Cited By (38)

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CN105223869A (en) * 2015-10-09 2016-01-06 浪潮集团有限公司 Unmanned aerial vehicle battery monitoring system based on cloud calculates
CN105365597A (en) * 2015-11-28 2016-03-02 惠州市蓝微新源技术有限公司 System for monitoring battery pack through embedded terminal equipment
CN105391122A (en) * 2015-11-18 2016-03-09 上海黄龙物联网科技有限公司 Using method for terminal equipment batteries based on Internet of things
CN105576792A (en) * 2016-01-22 2016-05-11 刘思超 Mobile phone charging shopping cart system
CN105644383A (en) * 2015-12-30 2016-06-08 东莞市青麦田数码科技有限公司 Rechargeable battery management method and device
CN105896650A (en) * 2016-04-14 2016-08-24 东华大学 Storage battery wireless inspection diagnosis system
CN106208243A (en) * 2016-08-27 2016-12-07 重庆瑞阳鑫驰新能源汽车有限责任公司 The charge observation method and system of electric automobile
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CN106696731A (en) * 2016-12-01 2017-05-24 中聚（杭州）新能源科技有限公司 Charging system and charging method
CN106711525A (en) * 2017-01-06 2017-05-24 李锐 Large-scale energy storage battery pack management system and method
CN106740592A (en) * 2016-12-27 2017-05-31 安徽本纪智能科技有限公司 A kind of intelligent comprehensive protection system of new-energy automobile
CN106960556A (en) * 2016-01-12 2017-07-18 正阳实业投资有限公司 Electric tool data collection and application system and method
CN107150602A (en) * 2017-04-27 2017-09-12 浙江壹舸能源有限公司 BMS battery management systems
CN107526040A (en) * 2017-07-28 2017-12-29 广州亿程交通信息有限公司 New-energy automobile management method and system
CN107994276A (en) * 2017-10-27 2018-05-04 惠州市蓝微电子有限公司 A kind of lithium ion battery package informatin retroactive method and device
CN108075197A (en) * 2017-12-11 2018-05-25 北京小米移动软件有限公司 Battery method for early warning, device and storage medium
CN108282001A (en) * 2018-01-22 2018-07-13 浙江科技学院 A kind of emergency power supply with monitoring function
CN108879862A (en) * 2018-07-26 2018-11-23 浙江慧众智能装备科技有限公司 A kind of control method of power battery charging monitoring system
CN108931686A (en) * 2018-07-10 2018-12-04 北京新能源汽车股份有限公司 A kind of battery system total voltage is under-voltage detection method, device, equipment and automobile
CN108973732A (en) * 2018-07-26 2018-12-11 浙江慧众智能装备科技有限公司 A kind of control method of power battery management system
CN109017372A (en) * 2018-07-26 2018-12-18 浙江慧众智能装备科技有限公司 A kind of fault detection system based on power battery management system
CN109298344A (en) * 2018-09-18 2019-02-01 天津隆华瑞达科技有限公司 Battery capacity detection and monitoring system
CN109669129A (en) * 2018-12-05 2019-04-23 大连理工大学 Automobile power cell intelligent monitor system based on car networking and artificial intelligence neural networks
CN110048177A (en) * 2019-03-27 2019-07-23 中国电力科学研究院有限公司 The method and system that a kind of pair of echelon is supervised using the operating status of power battery
WO2019184864A1 (en) * 2018-03-30 2019-10-03 比亚迪股份有限公司 Electric vehicle, and system and method for giving prompt according to usage habits of user thereof
CN110324394A (en) * 2018-03-30 2019-10-11 比亚迪股份有限公司 Cloud Server, electric car and its prompt system, method
CN110861531A (en) * 2019-11-27 2020-03-06 四川野马汽车股份有限公司 Power battery failure early warning system and method
CN111082500A (en) * 2020-02-17 2020-04-28 中国人民解放军空军勤务学院 Emergency charging and discharging equipment for aviation onboard storage battery
CN111106415A (en) * 2019-07-17 2020-05-05 上海钧正网络科技有限公司 Battery management method and device, battery and cloud server
CN111231678A (en) * 2018-02-26 2020-06-05 杭州翼兔网络科技有限公司 Electric automobile terminal
CN111784999A (en) * 2020-07-17 2020-10-16 广州道源信息科技有限公司 Electric quantity use condition recording and detecting system for 5G network networking synchronous information
CN111860883A (en) * 2020-06-17 2020-10-30 杭州恒领科技有限公司 Vehicle life cycle management system based on battery system parameter monitoring
CN111952683A (en) * 2020-08-03 2020-11-17 广东博力威科技股份有限公司 Method for improving battery production condition
CN112327173A (en) * 2020-10-23 2021-02-05 上海果下科技有限公司 BMS online monitoring method based on Internet of things technology
CN112349981A (en) * 2020-11-04 2021-02-09 中天鸿锂清源股份有限公司 Battery management system
CN112820955A (en) * 2021-01-29 2021-05-18 深圳市优博讯科技股份有限公司 Battery parameter management method, terminal and system
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Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105223869A (en) * 2015-10-09 2016-01-06 浪潮集团有限公司 Unmanned aerial vehicle battery monitoring system based on cloud calculates
CN105391122A (en) * 2015-11-18 2016-03-09 上海黄龙物联网科技有限公司 Using method for terminal equipment batteries based on Internet of things
US11150304B2 (en) 2015-11-25 2021-10-19 Hewlett-Packard Development Company, L.P. Battery performance prediction
CN105365597A (en) * 2015-11-28 2016-03-02 惠州市蓝微新源技术有限公司 System for monitoring battery pack through embedded terminal equipment
CN105644383A (en) * 2015-12-30 2016-06-08 东莞市青麦田数码科技有限公司 Rechargeable battery management method and device
CN106960556A (en) * 2016-01-12 2017-07-18 正阳实业投资有限公司 Electric tool data collection and application system and method
CN105576792A (en) * 2016-01-22 2016-05-11 刘思超 Mobile phone charging shopping cart system
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Application publication date: 20150708