CN111667036A - Method for remotely wirelessly charging electronic tag in air, charging system and electronic tag - Google Patents
Method for remotely wirelessly charging electronic tag in air, charging system and electronic tag Download PDFInfo
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- CN111667036A CN111667036A CN202010581183.6A CN202010581183A CN111667036A CN 111667036 A CN111667036 A CN 111667036A CN 202010581183 A CN202010581183 A CN 202010581183A CN 111667036 A CN111667036 A CN 111667036A
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- electronic tag
- charging
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- air
- radio frequency
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000010355 oscillation Effects 0.000 claims description 20
- 239000003990 capacitor Substances 0.000 claims description 10
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 description 9
- 230000006698 induction Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- 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
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
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- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Near-Field Transmission Systems (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a method for remotely charging an electronic tag in air wirelessly, a charging system and the electronic tag. According to the charging method, the charging system emits electric energy into the air in the form of electromagnetic waves, an antenna in the electronic tag induces the electromagnetic waves, the electromagnetic waves are converted into electric energy, and the electric energy is stored in the battery. The transmitting device in the charging system comprises a signal generator, a power amplifier and a transmitting antenna, and the active electronic tag comprises a rechargeable battery, an antenna, a rectifying circuit, a charging circuit, an RFID circuit and the like. The invention charges the active RFID electronic tag, effectively prolongs the service life of the RFID electronic tag, improves the performance of the active RFID electronic tag, and can expand the application scene of the active RFID electronic tag.
Description
Technical Field
The invention relates to the field of electronic tags, in particular to a method for remotely wirelessly charging an electronic tag in the air, a charging system and the electronic tag.
Background
The electronic tag is also called as a radio frequency tag, a transponder and a data carrier; readers are also known as readers, interrogators, scanners, readers, communicators, readers/writers, and the like. The electronic tags are classified into active electronic tags and passive electronic tags according to a power supply mode. An active electronic tag is a tag in which a battery is built, and since the electronic tag is required to be used for a relatively long time, a circuit for a power supply of the electronic tag must be low in power consumption.
The most basic electronic label system consists of three parts:
the label (Tag) is composed of a coupling element and a chip, each label has a unique electronic code, and the high-capacity electronic label has a storage space which can be written by a user and is attached to an object to identify a target object.
Reader devices, devices for reading (and sometimes also writing) tag information, may be designed to be hand-held or stationary.
An Antenna (Antenna) for transmitting radio frequency signals between the tag and the reader.
After the tag enters a magnetic field of the reader, receiving a radio frequency signal sent by the reader, and sending out product information (Pasivetag, passive tag or passive tag) stored in a chip by virtue of energy obtained by induced current, or actively sending a signal with a certain frequency (Activetag, active tag or active tag); the information is read and decoded by the interpreter and then sent to the central information system for relevant data processing. For active tags, a battery is required and, therefore, stores energy. In fact, an active electronic tag is an RFID device using a battery, and the service life of the electronic tag is generally about 3 years due to the influence of the battery power and the service life. This age is not practical for many applications. Particularly in the field of warehouse management. In addition, there is a problem that the active electronic tag can completely realize accurate positioning, and because the active electronic tag is influenced by the electric quantity of the battery, the power consumption problem of the battery tag must be considered during design, so that the function of accurate positioning cannot be realized. Therefore, it is necessary to charge the active RFID electronic tag to extend its lifetime. The chinese invention patent application publication No. CN 104700143a discloses an active RFID electronic tag capable of wireless charging, which has an electromagnetic wave wireless receiving antenna, a charging circuit, an energy storage capacitor and an RFID electronic tag chip; the electromagnetic wave wireless receiving antenna is used for receiving an electromagnetic wave signal transmitted by an external reader so as to continuously obtain energy; the charging circuit is used for converting the electromagnetic wave signal into an electric signal, storing electric energy into the energy storage capacitor, detecting the electricity storage condition of the energy storage capacitor and making actions of starting charging and stopping charging; the energy storage capacitor is used for storing electric energy and providing energy for each transmission of the RFID electronic tag chip; the RFID electronic tag chip is used for writing information and can be periodically transmitted to an external reader so as to achieve the purpose of information transmission; the electromagnetic wave wireless receiving antenna receives electromagnetic waves transmitted by an external reader, energy is stored in the energy storage capacitor through the charging circuit, the RFID electronic tag chip transmits signals to the external reader, the energy storage capacitor provides energy for the RFID electronic tag chip, and the charging circuit starts charging action when monitoring that the electric energy of the energy storage capacitor is consumed.
The electromagnetic wave induction charging mode which needs to be transmitted by the reader cannot meet the requirement of charging the electronic tags arranged in a certain range at the same time.
Disclosure of Invention
The invention provides a method for remotely wirelessly charging an electronic tag in the air, a charging system and the electronic tag, aiming at the problem that the conventional electronic tag cannot meet the requirement of simultaneously charging the electronic tag in a certain range by using an electromagnetic wave induction charging mode transmitted by a reader.
The technical scheme for realizing the technical purpose of the invention is as follows: a method for remotely charging an electronic tag in air wirelessly comprises the following steps:
step 1, generating an oscillation signal with the same frequency as the radio frequency signal of the electronic tag;
step 2, amplifying the power of the oscillation signal generated in the step 1;
step 3, transmitting the oscillation signal after power amplification through a charging antenna to form a radio frequency signal;
step 4, the antenna of the electronic tag induces the radio frequency signal to generate an induced current;
step 5, rectifying and filtering the induced current to form direct current;
and 6, charging a power storage device in the electronic tag by using direct current.
Further, in the above method for wirelessly charging an electronic tag remotely in the air: in the step 1, a signal generator with the same frequency as the radio frequency signal of the electronic tag is adopted to generate an oscillation signal.
Further, in the above method for wirelessly charging an electronic tag remotely in the air: the same frequency of the radio frequency signals of the electronic tag is 6.8MHz-13.56MHz, and the signal generator is a 6.8MHz-13.56MHz signal generator.
Further, in the above method for wirelessly charging an electronic tag remotely in the air: the electronic tag to be charged is arranged within 1000m around the charging antenna.
Further, in the above method for wirelessly charging an electronic tag remotely in the air: the power storage device in the electronic tag is a rechargeable battery.
The invention also provides a charging system for charging the electronic tag, which is a charging system for remotely wirelessly charging the electronic tag in the air; the method comprises the following steps:
the oscillator generates an oscillation signal with the same frequency as the radio frequency signal of the electronic tag to be charged;
a power amplifier for amplifying the oscillation signal generated by the oscillator;
and a charging antenna for transmitting the power-amplified oscillation signal.
The invention also provides an electronic tag, which comprises an electricity storage device; further comprising:
an electronic tag antenna for sensing a radio frequency signal emitted by the charging system;
the rectifying circuit is used for rectifying the induced current of the electronic tag antenna;
and a charging circuit for charging the DC output from the rectifying circuit to the power storage device.
Further, in the electronic tag, the power storage device is a rechargeable battery integrated with the electronic tag.
The invention charges the active electronic tag, and effectively prolongs the service life of the electronic tag.
The invention will be explained in more detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a block diagram of a charging system for remote air wireless charging of an electronic tag according to the present invention.
Fig. 2 is a structural block diagram of an electronic tag according to the present invention.
Detailed Description
The embodiment mainly solves the problems of service life and power consumption of the active electronic tag, and the active electronic tag can be used in all fields. Meanwhile, the tag can be charged once every several months, so that the tag does not need to consider the problem of power consumption, and the target can be accurately positioned.
The present embodiment is a charging system for remotely wirelessly charging an electronic tag in the air by an active electronic tag, as shown in fig. 1.
The charging system that the wireless charging in long-range air of electronic tags includes:
and a signal generator in which an oscillator generates an oscillation signal synchronized with the radio frequency signal of the electronic tag.
And the power amplifier is used for amplifying the power of the oscillation signal generated by the signal generator.
And the charging antenna transmits the oscillation signal at the power from the charging antenna to form a radio frequency signal synchronous with the radio frequency signal of the electronic tag to be charged.
In this embodiment, the electronic tag to be charged is an active electronic tag having an electric storage device (energy storage device), typically a rechargeable battery, as shown in fig. 2. The active electronic tag comprises:
and the electronic tag antenna is used for inducing the radio-frequency signal transmitted by the charging antenna to generate an induced current.
And a rectifying circuit for rectifying the induced current to convert the induced current into direct current.
And the charging circuit is used for charging the direct current output by the rectifying circuit into an energy storage device of an electronic tag such as a battery or a capacitor.
In this embodiment, the method for charging the active electronic tag includes the following steps:
step 1, a signal generator generates an oscillation signal consistent with the radio frequency of the electronic tag.
And 2, amplifying the power of the oscillation signal in the step 1.
And 3, transmitting the oscillation signals after power amplification through an antenna to form radio frequency signals.
And 4, inducing the radio-frequency signal transmitted by the antenna induction charging antenna on the electronic tag to generate an induced current.
And 5, rectifying the induced current to form direct current.
And 6, charging the battery or the capacitor by using direct current.
In the embodiment, a precise signal source is generated through a crystal of 6.8MHz-13.56MHz, the signal is amplified through a power amplifier, and the signal is transmitted to the periphery through an antenna. The charging of all electronic tags within 1000 meters must be satisfied.
By using the method, a plurality of electronic tags arranged at the position of about 1000m around the charging antenna can be charged at the same time, so that the service life of the active electronic tag is prolonged.
Claims (8)
1. A method for remotely wirelessly charging an electronic tag in the air is characterized in that: the method comprises the following steps:
step 1, generating an oscillation signal with the same frequency as the radio frequency signal of the electronic tag;
step 2, amplifying the power of the oscillation signal generated in the step 1;
step 3, transmitting the oscillation signal after power amplification through a charging antenna to form a radio frequency signal;
step 4, the antenna of the electronic tag induces the radio frequency signal to generate an induced current;
step 5, rectifying and filtering the induced current to form direct current;
and 6, charging a power storage device in the electronic tag by using direct current.
2. The method for remotely wirelessly charging an electronic tag over the air as claimed in claim 1, wherein: in the step 1, a signal generator with the same frequency as the radio frequency signal of the electronic tag is adopted to generate an oscillation signal.
3. The method for remotely wirelessly charging an electronic tag over the air as claimed in claim 2, wherein: the same frequency of the radio frequency signals of the electronic tag is 6.8MHz-13.56MHz, and the signal generator is a 6.8MHz-13.56MHz signal generator.
4. The method for remotely wirelessly charging an electronic tag over the air as claimed in claim 1, wherein: the electronic tag to be charged is arranged within 1000m around the charging antenna.
5. The method for remotely wirelessly charging an electronic tag over the air according to any one of claims 1 to 4, wherein: the power storage device in the electronic tag is a rechargeable battery.
6. A charging system for remote aerial wireless charging of an electronic tag; the method is characterized in that: the method comprises the following steps:
the oscillator generates an oscillation signal with the same frequency as the radio frequency signal of the electronic tag to be charged;
a power amplifier for amplifying the oscillation signal generated by the oscillator;
and a charging antenna for transmitting the power-amplified oscillation signal.
7. An electronic tag includes an electric storage device; the method is characterized in that: the method comprises the following steps:
an electronic tag antenna for sensing a radio frequency signal emitted by the charging system;
the rectifying circuit is used for rectifying the induced current of the electronic tag antenna;
and a charging circuit for charging the DC output from the rectifying circuit to the power storage device.
8. An electronic tag according to claim 7, wherein the power storage means is a battery or a capacitor integrated into the electronic tag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010581183.6A CN111667036A (en) | 2020-06-23 | 2020-06-23 | Method for remotely wirelessly charging electronic tag in air, charging system and electronic tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010581183.6A CN111667036A (en) | 2020-06-23 | 2020-06-23 | Method for remotely wirelessly charging electronic tag in air, charging system and electronic tag |
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| Publication Number | Publication Date |
|---|---|
| CN111667036A true CN111667036A (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010581183.6A Pending CN111667036A (en) | 2020-06-23 | 2020-06-23 | Method for remotely wirelessly charging electronic tag in air, charging system and electronic tag |
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| Country | Link |
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| CN (1) | CN111667036A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113792839A (en) * | 2021-09-13 | 2021-12-14 | 重庆光能振亿科技有限公司 | Intelligent logistics label |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070081585A1 (en) * | 2004-01-16 | 2007-04-12 | Noriharu Suematsu | Power supply apparatus and power supply method |
| CN101937519A (en) * | 2010-08-27 | 2011-01-05 | 电子科技大学 | Wirelessly chargeable RFID electronic tag |
| CN102142721A (en) * | 2011-04-12 | 2011-08-03 | 南京航空航天大学 | Radio-frequency wireless power supply system |
| CN104700143A (en) * | 2015-03-04 | 2015-06-10 | 包建伟 | Wireless charging active RFID (radio frequency identification) |
| CN107069992A (en) * | 2017-04-09 | 2017-08-18 | 深圳市景程信息科技有限公司 | Remote-wireless charging system |
-
2020
- 2020-06-23 CN CN202010581183.6A patent/CN111667036A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070081585A1 (en) * | 2004-01-16 | 2007-04-12 | Noriharu Suematsu | Power supply apparatus and power supply method |
| CN101937519A (en) * | 2010-08-27 | 2011-01-05 | 电子科技大学 | Wirelessly chargeable RFID electronic tag |
| CN102142721A (en) * | 2011-04-12 | 2011-08-03 | 南京航空航天大学 | Radio-frequency wireless power supply system |
| CN104700143A (en) * | 2015-03-04 | 2015-06-10 | 包建伟 | Wireless charging active RFID (radio frequency identification) |
| CN107069992A (en) * | 2017-04-09 | 2017-08-18 | 深圳市景程信息科技有限公司 | Remote-wireless charging system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113792839A (en) * | 2021-09-13 | 2021-12-14 | 重庆光能振亿科技有限公司 | Intelligent logistics label |
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Application publication date: 20200915 |