GB2543596A - Improvements related to battery-powered RFID readers - Google Patents
Improvements related to battery-powered RFID readers Download PDFInfo
- Publication number
- GB2543596A GB2543596A GB1607602.8A GB201607602A GB2543596A GB 2543596 A GB2543596 A GB 2543596A GB 201607602 A GB201607602 A GB 201607602A GB 2543596 A GB2543596 A GB 2543596A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rfid reader
- battery
- discharge
- controller
- determined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 26
- 238000007599 discharging Methods 0.000 claims description 8
- 230000005670 electromagnetic radiation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10198—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves setting parameters for the interrogator, e.g. programming parameters and operating modes
- G06K7/10207—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves setting parameters for the interrogator, e.g. programming parameters and operating modes parameter settings related to power consumption of the interrogator
-
- 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
-
- 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
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K2019/06215—Aspects not covered by other subgroups
- G06K2019/06253—Aspects not covered by other subgroups for a specific application
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
- H01M2010/4278—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
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- H02J2007/0067—
-
- 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
A Radio frequency identification (RFID) reader, 10, comprising a battery, 14, a receiver, 18, for receiving radio wave signals, and a microcontroller, the microcontroller having a mode in which it receives at least one input command, determines whether the at least one input command matches a predetermined discharge command and causes operation of the RFID reader to discharge the battery to a predetermined charge level where the at least one input command matches the predetermined discharge command to allow for its safe transportation. The predetermined charge threshold may be less than or equal to 50, 40, 30, 20 or 10 percent of the total charge capacity of the cell. The controller may receive a plurality of input commands derived from at least one radio wave signal received by the receiver from an RFID tag, 20. The battery may be a rechargeable lithium ion (Li-ion) battery. The electronic device may have a battery gas gauge, 16, for monitoring the level of charge of the battery.
Description
TITLE - Improvements related to Battery-Powered RFID Readers
The present invention relates to battery-powered RFID readers.
Many electronic devices, particularly portable electronic devices, incorporate rechargeable batteries which allow the device to be used for a limited period of time before the battery needs to be recharged. An example of such a device is an RFID (radio-frequency identification) reader, which is used to read information from RFID tags. RFID readers interrogate RFID tags using a radio wave source, and then receive radio waves emitted from the tag in response, using a radio wave receiver. The radio waves emitted by the tag contain information which allows the tag to be identified.
Commonly used rechargeable batteries include lithium ion batteries, which have a high energy density and low-self discharge. Although lithium ion batteries are popular for these reasons, lithium ion batteries are classified as dangerous goods in view of the pressurised flammable electrolyte contained therein. There are therefore strict regulations in place for the transport of lithium ion batteries, for example by air, as well as electronic devices which contain lithium ion batteries. In particular, restrictions are in place which set an upper limit on the level of charge stored by a lithium ion battery to allow the battery to be transported.
There has now been devised an RFID reader, and a method of discharging a battery of an RFID reader, which overcome or substantially mitigate the aforementioned and/or other disadvantages associated with the prior art.
According to a first aspect of the present invention there is provided an RFID reader comprising a battery, a receiver for receiving radio wave signals, and a controller having a mode in which the controller: a) receives at least one input command b) determines whether the at least one input command matches a predetermined discharge command, and c) causes operation of the RFID reader to discharge the battery to a predetermined charge level where the at least one input command matches a pre-determined discharge command.
According to a second aspect of the present invention there is provided a method of discharging a battery of an RFID reader, the method comprising providing a controller of the RFID reader with at least one input command derived from at least one radio wave signal received by a receiver of the RFID reader from an RFID tag, and determining whether the at least one input command matches a pre-determined discharge command, such that the controller causes operation of the RFID reader to discharge the battery to a pre-determined charge level where the at least one input command matches the pre-determined discharge command.
The RFID reader and method of the first and second aspects of the present invention may be beneficial principally as the controller of the RFID reader has a mode in which the controller causes operation of the RFID reader to discharge the battery to a pre-determined charge level where at least one input command matches a pre-determined discharge command. In particular, this dedicated mode may discharge the battery to an appropriate pre-determined charge level, without the need for further user input other than the initial input command. This may remove the need for the device to be monitored during discharge of the battery, thereby saving both time and labour costs.
Furthermore, the dedicated mode may allow automatic discharge of the battery of an RFID reader in response to an RFID tag read by the reader, until the level of charge in the battery reaches a pre-determined level. This may simplify the procedure necessary to place an RFID reader in a condition suitable for transport by air.
The at least one input command may comprise an electronic signal derived from an authentication object or device. The at least one input command may comprise an electrical signal communicated through an electrical connection, eg a USB connection. Alternatively, the at least one input command may comprise an electronic signal derived from electromagnetic radiation. The at least one input command may comprise an electronic signal derived from any, or any combination, of radio waves, infra-red light, visible light, or ultra-violet light, eg from an RFID tag, a bar code or a QR code.
The authentication object may comprise an RFID tag. For example, the at least one input command may be derived from at least one radio wave signal received by the receiver from an RFID tag.
The mode in which the controller receives at least one input command derived from at least one radio wave signal received by the receiver from an RFID tag, determines whether the at least one input command matches a pre-determined discharge command, and causes operation of the RFID to discharge the battery to a pre-determined charge level where the at least one input command matches the pre-determined discharge command, may be referred to as a discharge mode.
The discharge mode may differ from a normal mode of operation of the RFID reader. For example, a normal mode of operation of the RFID reader may be a mode in which the RFID reader is operable to perform its intended function, whilst the discharge mode may be a mode in which the RFID is operable to discharge its battery to a pre-determined charge level. The electronic device may not be operable in its discharge mode to perform its intended function, and may have increased power consumption relative to the normal mode of operation.
The pre-determined charge level may be less than, or equal to, 50%, 40%, 30%, 20%, or 10% of the total charge capacity of the battery. The pre-determined charge level may be greater than 0% of the total charge capacity of the battery.
The RFID reader may comprise an electrical load, which consumes power. The electrical load may be a resistive load, ie a resistor, and the controller may, for example, be configured to operate the RFID reader to apply a voltage across the load where the at least one input command matches the pre-determined discharge command. Thus by applying a voltage across theload, the battery may be discharged to the pre-determined level.
The at least one input command may comprise an electronic signal derived from at least one radio wave signal received by the receiver from an RFID tag. The RFID reader may comprise a radio wave source. The at least one radio wave signal received by the receiver from an RFID tag may be emitted by the RFID tag in response to a radio wave signal emitted by the radio wave source.
The controller may be configured to operate the RFID reader in a normal mode of operation to discharge the battery to a pre-determined charge level where the at least one input command matches a pre-determined discharge command. For example, the controller may be configured to operate the RFID reader to achieve the intended function of the RFID reader, until the pre-determined charge level is reached. The controller may be configured to turn off the RFID reader once the pre-determined level has been reached.
The controller may have a mode in which the controller receives a plurality of input commands derived from at least one radio wave signal received by the receiver from an RFID tag, determines whether the plurality of input commands match a plurality of pre-determined discharge commands, and causes operation of the RFID reader to discharge the battery to a pre-determined charge level where the plurality of input commands match pre-determined discharge commands. The controller may have a mode in which each of the plurality of input commands must be received, and must match a plurality of pre-determined discharge commands, for the controller to cause operation of the RFID reader to discharge the battery to the pre-determined charge level. This may prevent accidental activation of the discharge mode of the RFID reader.
The plurality of input commands may comprise input commands of differing formats including, for example, input commands of different type, duration, strength, etc. For example, the controller may have a mode in which the controller must receive an input command of a pre-determined form, for a pre-determined period of time, in order to cause operation of the RFID reader to discharge the battery to the pre-determined charge level.
The battery may comprise a rechargeable battery, for example a lithium ion battery.
The RFID reader may comprise a monitor for monitoring the level of charge stored by the battery. The monitor may comprise a battery gas gauge. The monitor may be configured to monitor the level of charge contained in the battery continuously whilst the battery is discharging. The monitor may be configured to transmit battery charge level information to the controller.
The controller may comprise a microprocessor.
The method may comprise discharging the battery to a pre-determined charge level which is less than, or equal to, 50%, 40%, or 30%, of the total charge capacity of the battery.
The method may comprise applying a voltage across a load, eg a resistor of the RFID reader where the at least one input command matches the pre-determined discharge command. Thus by applying a voltage across theload, the battery may be discharged to the pre-determined level.
The method may comprise reading an RFID tag to generate the at least one input command. The method may comprise interrogating an RFID tag with a radio wave source, and receiving a response in the form of radio waves emitted by the RFID tag, to generate the at least one input command.
The method may comprise providing a controller of the RFID reader with a plurality of input commands, such that the controller causes operation of the RFID reader to discharge the battery to a pre-determined charge level where the plurality of input commands match pre-determined discharge commands.
The method may comprise providing a controller of the RFID reader with input commands of differing formats including, for example, input commands of different type, duration, strength, etc.
Preferential features of each aspect of the present invention may be applied equally to other aspects of the present invention, where appropriate.
According to a third aspect of the present invention there is provided a data carrier comprising machine readable instructions for a controller of an RFID reader, the RFID reader comprising a battery, a receiver for receiving radio wave signals, and a controller having a discharge mode, wherein the instructions cause operation of the controller to: a) receive at least one input command derived from at least one radio wave signal received by the receiver from an RFID tag b) determine whether the at least one input command matches a predetermined discharge command, and c) cause operation of the RFID reader to discharge the battery to a predetermined charge level where the at least one input command matches a pre-determined discharge command.
Practicable embodiments of the invention will be described in further detail below with reference to the accompanying drawings, of which:
Figure 1 is a schematic diagram of an RFID reader according to the first aspect of the present invention; and
Figure 2 is a schematic diagram illustrating a method of discharging a battery of an RFID according to the second aspect of the present invention.
An RFID reader according to the first aspect of the present invention, generally designated 10, is shown schematically in Figure 1.
The RFID reader 10 comprises a microcontroller 12, a battery 14, a gas gauge 16, and a UHF receiver 18. The microcontroller 12, battery 14, gas gauge 16, and UHF receiver 18 are conventional components which may typically be found in a conventional RFID reader. The microcontroller 12 is configured to receive information from both the gas gauge 16 and the UHF receiver 18, and is further configured to operate as will be described in more detail below, and with reference to Figure 2.
The RFID reader 10 is used to read 22 an RFID tag (which is a UHF transponder) 20. The microcontroller 12 determines 24 whether the RFID tag 20 is a tag configured to send the microcontroller 12 into a discharge mode. If the RFID tag 20 is not a tag configured to send the microcontroller 12 into a discharge mode, then the RFID reader 10 performs its normal function 26 having regard to the RFID tag 20.
If the RFID tag 20 is a tag configured to send the microcontroller 12 into a discharge mode, then the microcontroller 12 configures 28 the RFID reader 10 to discharge the battery 14 by placing a load across a resistor (not shown). During discharge, the level of charge in the battery 14 is read by the gas gauge 16, and this information is fed to the microcontroller 12. The microcontroller 12 thus determines 31 the level of charge in the battery 14. If the level of charge in the battery is above a pre-determined threshold, in the present case 30%, then the microcontroller continues 32 to operate the discharge mode. If the level of charge in the battery is below a pre-determined threshold, in the present case 30%, then the microcontroller interrupts 34 the discharge mode, and shuts down 36 the RFID reader 10.
Claims (25)
1. An RFID reader comprising a battery, a receiver for receiving radio wave signals, and a controller having a mode in which the controller: a) receives at least one input command b) determines whether the at least one input command matches a predetermined discharge command, and c) causes operation of the RFID reader to discharge the battery to a predetermined charge level where the at least one input command matches a pre-determined discharge command.
2. An RFID reader as claimed in Claim 1, wherein the pre-determined charge level is less than, or equal to, 50%, 40%, 30%, 20%, or 10% of the total charge capacity of the battery.
3. An RFID reader as claimed in any preceding claim, wherein the RFID reader comprises a load that consumes power, and the controller is configured to operate the RFID reader to apply a voltage across the load where the at least one input command matches the pre-determined discharge command.
4. An RFID reader as claimed in any preceding claim, wherein the at least one input command comprises an electronic signal derived from an authentication object or device.
5. An RFID reader as claimed in any preceding claim, wherein the at least one input command comprises an electrical signal communicated through an electrical connection, or the at least one input command comprises an electronic signal derived from electromagnetic radiation.
6. An RFID reader as claimed in any preceding claim, wherein the at least one input command comprises an electronic signal derived from at least one radio wave signal received by the receiver from an RFID tag.
7. An RFID reader as claimed in any preceding claim, wherein the controller is configured to operate the RFID reader in a normal mode of operation to discharge the battery to a pre-determined charge level where the at least one input command matches a pre-determined discharge command.
8. An RFID reader as claimed in any preceding claim, wherein the controller is configured to turn off the RFID reader once the pre-determined charge level has been reached.
9. An RFID reader as claimed in any preceding claim, wherein the controller has a mode in which the controller receives a plurality of input commands derived from at least one radio wave signal received by the receiver from an RFID tag, determines whether the plurality of input commands match a plurality of predetermined discharge commands, and causes operation of the RFID reader to discharge the battery to a pre-determined charge level where the plurality of input commands match pre-determined discharge commands.
10. An RFID reader as claimed in Claim 9, wherein each of the plurality of input commands must be received, and must match a plurality of pre-determined discharge commands, for the controller to cause operation of the RFID reader to discharge the battery to the pre-determined charge level.
11. An RFID reader as claimed in Claim 9 or Claim 10, wherein the plurality of input commands comprise input commands of differing formats.
12. An RFID reader as claimed in any preceding claim, wherein the battery comprises a rechargeable battery.
13. An RFID reader as claimed in any preceding claim, wherein the battery comprises a lithium ion battery.
14. An RFID reader as claimed in any preceding claim, wherein the RFID reader comprises a monitor for monitoring the level of charge stored by the battery.
15. An RFID reader as claimed in Claim 14, wherein the monitor is configured to monitor the level of charge contained in the battery continuously whilst the battery is discharging.
16. An RFID reader as claimed in Claim 14 or 15, wherein the monitor is configured to transmit battery charge level information to the controller.
17. An RFID reader as claimed in any of Claims 14 to 16, wherein the monitor comprises a battery gas gauge.
18. A method of discharging a battery of an RFID reader, the method comprising providing a controller of the RFID reader with at least one input command derived from at least one radio wave signal received by a receiver of the RFID reader from an RFID tag, and determining whether the at least one input command matches a pre-determined discharge command, such that the controller causes operation of the RFID reader to discharge the battery to a pre-determined charge level where the at least one input command matches the pre-determined discharge command.
19. A method as claimed in Claim 18, wherein the method comprises discharging the battery to a pre-determined charge level which is less than, or equal to, 50%, 40%, or 30%, of the total charge capacity of the battery.
20. A method as claimed in Claim 18 or 19, wherein the method comprises applying a voltage across a load of the RFID reader where the at least one input command matches the pre-determined discharge command.
21. A method as claimed in any of Claims 18 to 20, wherein the method comprises reading an RFID tag to generate the at least one input command.
22. A method as claimed in any of Claims 18 to 21, wherein the method comprises interrogating an RFID tag with a radio wave source, and receiving a response in the form of radio waves emitted by the RFID tag, to generate the at least one input command.
23. A method as claimed in any of Claims 18 to 22, wherein the method comprises providing a controller of the RFID reader with a plurality of input commands, such that the controller causes operation of the RFID reader to discharge the battery to a pre-determined charge level where the plurality of input commands match pre-determined discharge commands.
24. A method as claimed in Claim 23, wherein the method comprises providing a controller of the RFID reader with input commands of differing formats.
25. A data carrier comprising machine readable instructions for a controller of an RFID reader, the RFID reader comprising a battery, a receiver for receiving radio wave signals, and a controller having a discharge mode, wherein the instructions cause operation of the controller to: a) receive at least one input command derived from at least one radio wave signal received by the receiver from an RFID tag b) determine whether the at least one input command matches a predetermined discharge command, and c) cause operation of the RFID reader to discharge the battery to a predetermined charge level where the at least one input command matches a pre-determined discharge command.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1607602.8A GB2543596A (en) | 2016-04-29 | 2016-04-29 | Improvements related to battery-powered RFID readers |
| PCT/GB2017/051218 WO2017187203A1 (en) | 2016-04-29 | 2017-04-28 | Improvements related to battery-powered electronic devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1607602.8A GB2543596A (en) | 2016-04-29 | 2016-04-29 | Improvements related to battery-powered RFID readers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201607602D0 GB201607602D0 (en) | 2016-06-15 |
| GB2543596A true GB2543596A (en) | 2017-04-26 |
Family
ID=56234212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1607602.8A Withdrawn GB2543596A (en) | 2016-04-29 | 2016-04-29 | Improvements related to battery-powered RFID readers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2543596A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017187203A1 (en) * | 2016-04-29 | 2017-11-02 | Technology Solutions (Uk) Limited | Improvements related to battery-powered electronic devices |
| US11480670B2 (en) * | 2017-09-13 | 2022-10-25 | Samsung Electronics Co., Ltd. | Tag and tag position determination device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US97532A (en) * | 1869-12-07 | Improvement in grain-binders | ||
| US5608305A (en) * | 1993-10-29 | 1997-03-04 | Sanyo Electric Co., Ltd. | Method and apparatus for compulsory discharging lithium-ion battery to prevent quality degradation |
| EP2595236A1 (en) * | 2011-09-15 | 2013-05-22 | NEC Corporation | Secondary battery system and method for charging/discharging same |
| JP2016081685A (en) * | 2014-10-15 | 2016-05-16 | トヨタ自動車株式会社 | Method for reducing degradation of secondary battery |
| WO2016095129A1 (en) * | 2014-12-17 | 2016-06-23 | SZ DJI Technology Co., Ltd. | Battery management system |
-
2016
- 2016-04-29 GB GB1607602.8A patent/GB2543596A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US97532A (en) * | 1869-12-07 | Improvement in grain-binders | ||
| US5608305A (en) * | 1993-10-29 | 1997-03-04 | Sanyo Electric Co., Ltd. | Method and apparatus for compulsory discharging lithium-ion battery to prevent quality degradation |
| EP2595236A1 (en) * | 2011-09-15 | 2013-05-22 | NEC Corporation | Secondary battery system and method for charging/discharging same |
| JP2016081685A (en) * | 2014-10-15 | 2016-05-16 | トヨタ自動車株式会社 | Method for reducing degradation of secondary battery |
| WO2016095129A1 (en) * | 2014-12-17 | 2016-06-23 | SZ DJI Technology Co., Ltd. | Battery management system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017187203A1 (en) * | 2016-04-29 | 2017-11-02 | Technology Solutions (Uk) Limited | Improvements related to battery-powered electronic devices |
| US11480670B2 (en) * | 2017-09-13 | 2022-10-25 | Samsung Electronics Co., Ltd. | Tag and tag position determination device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201607602D0 (en) | 2016-06-15 |
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