CN110476362B - 在无线电力传输系统中执行通信的设备和方法 - Google Patents

在无线电力传输系统中执行通信的设备和方法 Download PDF

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CN110476362B
CN110476362B CN201880023071.XA CN201880023071A CN110476362B CN 110476362 B CN110476362 B CN 110476362B CN 201880023071 A CN201880023071 A CN 201880023071A CN 110476362 B CN110476362 B CN 110476362B
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wireless power
power
packet
wireless
response
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CN110476362A (zh
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朴容彻
陆京焕
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LG Electronics Inc
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LG Electronics Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/24—Negotiation of communication capabilities
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H04B5/266—One coil at each side, e.g. with primary and secondary coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/45—Transponders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/40—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/2866—Architectures; Arrangements
    • H04L67/30—Profiles
    • H04L67/303—Terminal profiles
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Near-Field Transmission Systems (AREA)
CN201880023071.XA 2017-08-24 2018-08-24 在无线电力传输系统中执行通信的设备和方法 Active CN110476362B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210343615.9A CN114584633B (zh) 2017-08-24 2018-08-24 无线电力发送设备和方法及无线电力接收设备和方法

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US201762549931P 2017-08-24 2017-08-24
US62/549,931 2017-08-24
US201762550623P 2017-08-26 2017-08-26
US62/550,623 2017-08-26
KR20180034709 2018-03-26
KR10-2018-0034709 2018-03-26
KR20180068029 2018-06-14
KR10-2018-0068029 2018-06-14
PCT/KR2018/009773 WO2019039898A1 (ko) 2017-08-24 2018-08-24 무선전력 전송시스템에서 통신을 수행하는 장치 및 방법

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US (4) US11223242B2 (https=)
EP (4) EP3582466B1 (https=)
JP (5) JP6949985B2 (https=)
KR (1) KR102246177B1 (https=)
CN (2) CN110476362B (https=)
ES (1) ES3010309T3 (https=)
PL (1) PL4221094T3 (https=)
WO (1) WO2019039898A1 (https=)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019039898A1 (ko) 2017-08-24 2019-02-28 엘지전자 주식회사 무선전력 전송시스템에서 통신을 수행하는 장치 및 방법
EP4513713A3 (en) 2018-04-16 2025-05-07 LG Electronics Inc. Apparatus and method for performing data stream transmission in wireless power transfer system
HUE064297T2 (hu) * 2018-04-16 2024-02-28 Lg Electronics Inc Berendezés és eljárás energia vezérlésének végrehajtására vezeték nélküli energiaátviteli rendszerben
US11355971B2 (en) * 2018-10-23 2022-06-07 Lg Electronics Inc. Method and device for transmitting data in wireless power transmission system
KR102537602B1 (ko) 2019-03-25 2023-06-01 엘지전자 주식회사 무선전력 전송 시스템에서 전력 보정을 수행하는 장치 및 방법
CN111835097B (zh) * 2019-04-22 2022-02-11 北京小米移动软件有限公司 无线充电系统、无线充电设备及无线受电设备
KR20250161653A (ko) 2019-04-29 2025-11-17 엘지전자 주식회사 무선전력 수신장치, 무선전력 전송장치 및 이를 이용한 무선전력 전송방법
US12081042B2 (en) * 2020-02-17 2024-09-03 Lg Electronics Inc. Wireless power reception device, wireless power transmission device, and method for transmitting/receiving messages between wireless power reception device and wireless power transmission device using data transmission stream
KR102805643B1 (ko) 2020-02-18 2025-05-09 엘지전자 주식회사 무선 전력 전송 장치 및 그의 동작방법
KR102889478B1 (ko) * 2020-02-18 2025-11-20 엘지전자 주식회사 무선 전력 전송 장치, 무선 전력 수신 장치, 및 이를 포함하는 시스템
US12206262B2 (en) 2020-12-08 2025-01-21 Dolby Laboratories Inc. Pulse width communication in a wireless power system
EP4220895A4 (en) 2021-01-29 2024-06-05 Samsung Electronics Co., Ltd. Electronic apparatus for transmitting wireless power and wireless charging method using same
US12363643B2 (en) * 2021-04-22 2025-07-15 Texas Instruments Incorporated Dynamic power negotiation outside enhanced beacon exchange in a wireless network via acknowledgment frames
US12418203B2 (en) * 2021-04-30 2025-09-16 Lg Electronics Inc. Method and device for high-speed data transmission in wireless power transmission system
WO2023277671A1 (ko) * 2021-07-02 2023-01-05 엘지전자 주식회사 무선 전력 전송 시스템에서 프로파일 간 호환성 확보 방법 및 장치
CN113696751B (zh) * 2021-08-17 2023-07-18 广西电网有限责任公司电力科学研究院 一种基于线圈的具有身份识别的无人机充电系统及方法
TW202315275A (zh) * 2021-09-28 2023-04-01 美商奇異電器公司 無線電力系統中的功率協商
CN117581438A (zh) * 2021-11-26 2024-02-20 华为数字能源技术有限公司 一种无线电力传输网络
FR3133716B1 (fr) 2022-03-16 2026-01-30 St Microelectronics Rousset Procédé de communication
CN121844651A (zh) * 2023-09-12 2026-04-10 诺基亚通信(上海)股份有限公司 用于无线功率传输服务设备的选择的方法和装置
EP4611216A1 (en) * 2024-02-28 2025-09-03 Koninklijke Philips N.V. Wireless power transfer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102292896A (zh) * 2009-01-22 2011-12-21 高通股份有限公司 用于无线充电的自适应电力控制
CN102823109A (zh) * 2010-04-13 2012-12-12 富士通株式会社 电力供给系统、送电器及受电器
EP3032701A1 (en) * 2013-08-07 2016-06-15 LG Innotek Co., Ltd. Wireless power transmission device
CN105981256A (zh) * 2014-02-07 2016-09-28 Lg电子株式会社 无线电力传送和接收方法、装置以及系统
CN106537727A (zh) * 2014-07-24 2017-03-22 Lg 电子株式会社 无线电力传送方法、装置以及系统

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101202873B1 (ko) * 2006-01-04 2012-11-19 삼성전자주식회사 단말기에서 ＩＰｖ6를 지원하기 장치 및 방법
US9094054B2 (en) * 2009-11-30 2015-07-28 Broadcom Corporation IC controlled wireless power operation and applications thereof including control channel communication configuration
GB201006203D0 (en) 2010-04-14 2010-06-02 Bio Amd Holdings Ltd Immunoassay apparatus incorporating microfluidic channel
KR101779344B1 (ko) 2011-02-07 2017-09-19 삼성전자주식회사 무선 전력 전송 시스템, 무선 전력 전송 및 수신 제어 방법
JP5703823B2 (ja) * 2011-02-21 2015-04-22 ソニー株式会社 送電装置、送電方法および電力伝送システム
WO2012132818A1 (ja) 2011-03-31 2012-10-04 ソニー株式会社 検知装置、送電装置、受電装置、給電システムおよび検知方法
JP5071574B1 (ja) * 2011-07-05 2012-11-14 ソニー株式会社 検知装置、受電装置、非接触電力伝送システム及び検知方法
KR20130006326A (ko) * 2011-07-07 2013-01-16 삼성전자주식회사 무선 전력 전송 및 충전 시스템, 무선 전력 전송 및 충전 시스템의 통신 및 전력 제어 방법
US20130058379A1 (en) * 2011-09-05 2013-03-07 Samsung Electronics Co., Ltd. Communication apparatus and communication method in wireless power transmission system
KR101338732B1 (ko) 2011-11-10 2013-12-06 엘지이노텍 주식회사 무선전력 송신장치, 무선전력 수신장치, 무선전력 전송 방법, 무선전력 수신 방법, 정보 전송 방법 및 정보 수신 방법
KR101882754B1 (ko) 2012-06-20 2018-07-27 삼성전자주식회사 전력 송신기에서 전력 전송을 제어하기 위한 방법 및 이를 위한 전력 송신기
WO2014001983A1 (en) 2012-06-29 2014-01-03 Koninklijke Philips N.V. Wireless inductive power transfer
KR101788603B1 (ko) 2013-12-01 2017-10-20 엘지전자 주식회사 무선 전력 전송방법, 무선 전력 전송장치 및 무선 충전 시스템
WO2015119458A1 (en) * 2014-02-07 2015-08-13 Lg Electronics Inc. Wireless power transfer and receive method, apparatus and system
WO2015150107A1 (en) 2014-03-31 2015-10-08 Koninklijke Philips N.V. Wireless inductive power transfer
US10177592B2 (en) 2014-04-11 2019-01-08 Lg Electronics Inc. Wireless power transmitter and wireless power transmission method
JP2015231252A (ja) * 2014-06-03 2015-12-21 ローム株式会社 ワイヤレス送電装置、ワイヤレス受電装置およびそれを用いた電子機器、ワイヤレス給電システム、ワイヤレス給電方法
KR102285941B1 (ko) 2014-08-12 2021-08-06 애플 인크. 전력 전달을 위한 시스템 및 방법
US10103553B2 (en) 2014-10-22 2018-10-16 Lg Electronics Inc. Wireless power transmitter and receiver
JP6671919B2 (ja) 2015-10-23 2020-03-25 キヤノン株式会社 送電装置、送電装置の制御方法及びプログラム
US10505398B2 (en) 2015-11-05 2019-12-10 Lg Electronics Inc. Wireless power transmitter and receiver for vehicle
WO2019039898A1 (ko) 2017-08-24 2019-02-28 엘지전자 주식회사 무선전력 전송시스템에서 통신을 수행하는 장치 및 방법
US10862351B2 (en) 2018-03-26 2020-12-08 Lg Electronics Inc. Method and apparatus for performing communication in wireless power transmission system
JP7566483B2 (ja) * 2020-03-31 2024-10-15 キヤノン株式会社 送電装置、送電装置が行う方法およびプログラム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102292896A (zh) * 2009-01-22 2011-12-21 高通股份有限公司 用于无线充电的自适应电力控制
CN102823109A (zh) * 2010-04-13 2012-12-12 富士通株式会社 电力供给系统、送电器及受电器
EP3032701A1 (en) * 2013-08-07 2016-06-15 LG Innotek Co., Ltd. Wireless power transmission device
CN105981256A (zh) * 2014-02-07 2016-09-28 Lg电子株式会社 无线电力传送和接收方法、装置以及系统
CN106537727A (zh) * 2014-07-24 2017-03-22 Lg 电子株式会社 无线电力传送方法、装置以及系统

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EP4221094B1 (en) 2024-11-20
EP3582466B1 (en) 2021-07-28
US20210143687A1 (en) 2021-05-13
JP7527339B2 (ja) 2024-08-02
ES3010309T3 (en) 2025-04-02
KR20190108168A (ko) 2019-09-23
JP2020516215A (ja) 2020-05-28
JP7733180B2 (ja) 2025-09-02
KR102246177B1 (ko) 2021-04-29
EP3582466A4 (en) 2020-02-26
US11223242B2 (en) 2022-01-11
EP4468761A2 (en) 2024-11-27
EP4468761A3 (en) 2025-03-05
EP3582466A1 (en) 2019-12-18
US11670966B2 (en) 2023-06-06
EP4221094C0 (en) 2024-11-20
CN114584633A (zh) 2022-06-03
US20220123604A1 (en) 2022-04-21
JP2025172786A (ja) 2025-11-26
JP2024150647A (ja) 2024-10-23
EP4468761B1 (en) 2026-04-15
JP2023022297A (ja) 2023-02-14
US12074448B2 (en) 2024-08-27
EP3917080B1 (en) 2023-06-28
JP6949985B2 (ja) 2021-10-13
US20240372403A1 (en) 2024-11-07
US20230261522A1 (en) 2023-08-17
JP2021168594A (ja) 2021-10-21
JP7193586B2 (ja) 2022-12-20
WO2019039898A1 (ko) 2019-02-28
PL4221094T3 (pl) 2025-02-24
CN110476362A (zh) 2019-11-19
EP3917080A1 (en) 2021-12-01
US12573880B2 (en) 2026-03-10
CN114584633B (zh) 2023-06-20
EP4221094A1 (en) 2023-08-02

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