[go: up one dir, main page]

CN108021966B - Wireless Energy Harvesting GB/T29768 National Standard IoT Label - Google Patents

Wireless Energy Harvesting GB/T29768 National Standard IoT Label Download PDF

Info

Publication number
CN108021966B
CN108021966B CN201711405359.7A CN201711405359A CN108021966B CN 108021966 B CN108021966 B CN 108021966B CN 201711405359 A CN201711405359 A CN 201711405359A CN 108021966 B CN108021966 B CN 108021966B
Authority
CN
China
Prior art keywords
output end
national standard
matching network
radio frequency
management module
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.)
Active
Application number
CN201711405359.7A
Other languages
Chinese (zh)
Other versions
CN108021966A (en
Inventor
文光俊
李钢
李镇兵
赵发定
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.)
University of Electronic Science and Technology of China
Original Assignee
University of Electronic Science and Technology of China
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by University of Electronic Science and Technology of China filed Critical University of Electronic Science and Technology of China
Priority to CN201711405359.7A priority Critical patent/CN108021966B/en
Publication of CN108021966A publication Critical patent/CN108021966A/en
Application granted granted Critical
Publication of CN108021966B publication Critical patent/CN108021966B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K19/0702—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 the arrangement including a battery
    • G06K19/0704—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 the arrangement including a battery the battery being rechargeable, e.g. solar batteries
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K19/0716—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 a sensor or an interface to a sensor
    • G06K19/0717—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 a sensor or an interface to a sensor the sensor being capable of sensing environmental conditions such as temperature history or pressure
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention discloses a wireless energy collection type GB/T29768 national standard Internet of things label, which is applied to the field of radio frequency identification, and the invention adopts a wireless energy collection mode to supply power to realize the Internet of things label meeting the GB/T29768-2013 national standard ultrahigh frequency RFID protocol; energy is collected simultaneously by three wireless energy collection schemes of solar energy collection, GSM900 frequency band radio frequency energy collection and GSM1800 frequency band radio frequency energy collection, so that the time for collecting energy by the system can be greatly shortened, sufficient working voltage is provided for the system, and the system can be ensured to run reliably; the Internet of things tag can realize remote communication of the active tag, overcomes the defects of short service life of the active tag and frequent battery replacement, and can meet the requirements of the wireless sensing network tag node on low power consumption and continuous work.

Description

Wireless energy collection type GB/T29768 national standard Internet of things label
Technical Field
The invention belongs to the field of radio frequency identification, and particularly relates to a wireless energy collection Internet of things label technology meeting GB/T29768-2013 national standard ultrahigh frequency RFID protocol.
Background
In recent years, Radio Frequency Identification (RFID) technology is rapidly developed, and in order to promote the development of the domestic RFID industry, the GB/T29768-2013 protocol is autonomously defined in China. The national standard ultrahigh frequency RFID protocol has independent intellectual property rights in the parts of coding, decoding, instruction structures and the like.
The technology of internet of things is initiating a new industrial revolution, and the technology of internet of things integrates a network, an RFID technology, an information technology and a wireless sensor technology. A Wireless Sensor Network (WSN) is a distributed Sensor network, and its nodes can sense the sensing information in the external environment. The wireless sensing network utilizes a wireless communication technology, a network technology, a sensor technology, a control technology and the like, various data around the nodes are acquired through a large number of sensor nodes distributed in an area, the data comprise information such as earthquake, electromagnetism, temperature, humidity, pressure, object size, moving direction and speed and the like, the information is transmitted to a monitoring end through a wireless transmission technology, and the information is analyzed and processed at the monitoring end. The wireless sensor network nodes are generally powered by batteries, and because the sensor nodes need to continuously work in a monitoring area, the battery power supply is always one of the main obstacles for the popularization of the sensor network.
Existing wireless sensor network nodes are generally battery-powered, and most sensor nodes using radio frequency identification technology (RFID) adopt ISO/IEC18000-6C protocols. The defects of the prior art are as follows: the power supply capacity of the active tag battery is limited, and the battery needs to be replaced frequently. The passive tag cannot actively initiate communication, provides few functions, has short communication distance and is difficult to meet the intensive working requirement of a wireless sensor network. The sensor node realized by the RFID technology mostly adopts an ISO/IEC18000-6C protocol, has no independent intellectual property right, and communication protocols are completely disclosed, and an encryption algorithm generally increases the cost and the communication efficiency and is easy to attack for communication without encryption.
Disclosure of Invention
In order to solve the technical problems, the invention provides a wireless energy collection type GB/T29768 national standard Internet of things label, a single chip microcomputer is used as a carrier, and power is supplied in a wireless energy collection mode, so that the Internet of things label meeting the GB/T29768-2013 national standard ultrahigh frequency RFID protocol is realized.
The technical scheme adopted by the invention is as follows: wireless energy collection formula GB/T29768 national standard thing networking label includes: the device comprises a solar energy collecting circuit, a GSM900 frequency band radio frequency energy collecting circuit, a GSM1800 frequency band radio frequency energy collecting circuit, a charging and discharging management module, an energy memory, a modulator, a demodulator, a baseband signal processing module and a sensor;
the output end of the solar energy collecting circuit is connected with the first end of the charge and discharge management module; the output end of the GSM900 frequency band radio frequency energy collecting circuit is connected with the second end of the charging and discharging management module; the output end of the GSM1800 frequency band radio frequency energy collecting circuit is connected with the third end of the charge and discharge management module;
the fourth end of the charge and discharge management module is connected with the first end of the capacity storage, and the second end of the energy storage is grounded;
the fifth end of the charge and discharge management module is respectively connected with the modulator, the demodulator, the baseband signal processing module and the sensor to provide working voltage for the modulator, the demodulator, the baseband signal processing module and the sensor;
the sensor is connected with a first input end of the baseband signal processing module, an output end of the baseband signal processing module is connected with an input end of the modulator, and an output end of the modulator is connected with the antenna; the input end of the demodulator is connected with the antenna, and the output end of the demodulator is connected with the second input end of the baseband signal processing module.
Further, the solar energy collecting circuit comprises a solar cell panel, and the output of the solar cell panel is connected with the first end of the charging and discharging management module.
Further, the GSM900 frequency band radio frequency energy collection circuit includes: the low-pass filter, the first matching network and the first rectifying unit; the antenna is connected with the input end of the low-pass filter, the output end of the low-pass filter is connected with the input end of the first matching network, the output end of the first matching network is connected with the input end of the first rectifying unit, and the output end of the first rectifying unit is connected with the second end of the charge-discharge management module.
Further, the first matching network is a GSM 900-based optimized matching network.
Further, the GSM1800 frequency band radio frequency energy collection circuit includes: the antenna is further connected with the input end of the high-pass filter, the output end of the high-pass filter is connected with the input end of the second matching network, the output end of the second matching network is connected with the input end of the second rectifying unit, and the output end of the second rectifying unit is connected with the third end of the charge-discharge management module.
Further, the second matching network is: a GSM 1800-based optimized matching network.
The invention has the beneficial effects that: the wireless energy collection type GB/T29768 national standard Internet of things tag adopts a wireless energy collection mode to supply power, so that the sensing tag meeting the GB/T29768-2013 national standard ultrahigh frequency RFID protocol is realized; energy is collected simultaneously by three wireless energy collection schemes of solar energy collection, GSM900 frequency band radio frequency energy collection and GSM1800 frequency band radio frequency energy collection, so that the time for collecting energy by the system can be greatly shortened, sufficient working voltage is provided for the system, and the system can be ensured to run reliably; the sensing tag can realize the long-distance communication of the active tag, overcomes the defects of short service life of the active tag and frequent battery replacement, and can meet the requirements of the wireless sensing network tag node on low power consumption and continuous work.
Drawings
FIG. 1 is a block diagram of a sensor tag provided by an embodiment of the present invention;
FIG. 2 is a flow chart of a sensing command execution according to an embodiment of the present invention;
fig. 3 is a general architecture diagram of the SM7 algorithm provided by the embodiment of the present invention;
fig. 4 is a flowchart of encryption and decryption implemented by the single chip microcomputer according to the embodiment of the present invention.
Detailed Description
In order to facilitate the understanding of the technical contents of the present invention by those skilled in the art, the following; the present disclosure is further explained in conjunction with the accompanying drawings.
As shown in fig. 1, which is a structure diagram of a sensing tag of the present invention, the wireless energy collection GB/T29768 national standard internet of things tag of the present invention mainly collects radio frequency electromagnetic waves of GSM900/GSM1800 frequency bands and electromagnetic waves (solar energy) of visible light bands. The energy of the radio frequency electromagnetic waves of the GSM900/GSM1800 frequency bands is collected through the antenna, and the energy of the visible light band is collected through the solar cell panel.
The solar energy collecting part is used for directly connecting the output of the solar cell panel with the first end of the charging and discharging management module; the collection of solar energy is realized.
The GSM900 frequency band radio frequency energy collecting part comprises: the low-pass filter, the first matching network and the first rectifying unit; the antenna is connected with the input end of the low-pass filter, the output end of the low-pass filter is connected with the input end of the first matching network, the output end of the first matching network is connected with the input end of the first rectifying unit, and the output end of the first rectifying unit is connected with the second end of the charge-discharge management module; and the collected radio frequency energy of the GSM900 frequency band is filtered through a low-pass filter, the filtered output passes through a matching network based on GSM900 optimization, the output of the first matching network is subjected to RF-DC rectification, and finally the rectified output is input into a charging and discharging management module.
The GSM1800 frequency band radio frequency energy collecting part comprises: the antenna is also connected with the input end of the high-pass filter, the output end of the high-pass filter is connected with the input end of the second matching network, the output end of the second matching network is connected with the input end of the second rectifying unit, and the output end of the second rectifying unit is connected with the third end of the charge-discharge management module; and the collected radio frequency energy of the GSM1800 frequency band is filtered by a high-pass filter, the filtered output passes through a matching network based on GSM1800 optimization, the output of the second matching network is subjected to RF-DC rectification, and finally the rectified output is input into a charging and discharging management module.
The invention discloses a wireless energy collection type GB/T29768 national standard Internet of things label, which further comprises: the device comprises an energy storage, a modulator, a demodulator, a baseband signal processing module and a sensor.
The fourth end of the charge and discharge management module is connected with the first end of the capacity storage, and the second end of the energy storage is grounded;
the fifth end of the charge and discharge management module is respectively connected with the modulator, the demodulator, the baseband signal processing module and the sensor to provide working voltage for the modulator, the demodulator, the baseband signal processing module and the sensor;
the sensor is connected with a first input end of the baseband signal processing module, an output end of the baseband signal processing module is connected with an input end of the modulator, and an output end of the modulator is connected with the antenna; the input end of the demodulator is connected with the antenna, and the output end of the demodulator is connected with the second input end of the baseband signal processing module.
The charge and discharge tube module can be realized by adopting ultra-low power consumption DC-DC chips such as bq25505, bq25504 and bq25570 of Texas Instruments (Texas Instruments), and can realize the simultaneous collection of multiple paths of energy by using a combination mode of the chips. The cold start voltage of BQ25570 is 330mv, and the input voltage can charge the energy storage device all the time only needing not less than 100mv in the working process of the cold start voltage.
The demodulator is used for demodulating signals received by the antenna, radio-frequency signals firstly pass through the matching circuit and then pass through the primary Dickson rectifying circuit, the rectifying circuit can be realized by an HSMS285C chip, and the rectified signals are converted into digital baseband signals through a 1-bit A/D conversion chip.
The modulator is used for modulating the return signal, and because the ultrahigh frequency RFID technology uses backscatter communication, the modulator sets the received input impedance according to the level of the return signal, and when the high level needs to be returned, the input impedance of the tag is mismatched, so that most energy is reflected; when it is desired to return to a low level, the input impedance of the tag is matched to about 50 Ω. The reader determines the data returned by the tag according to the reflected power.
The invention also relates to a GB/T29768-2013 compatible national standard ultrahigh frequency RFID protocol, and a sensing command of the protocol can be realized in a single chip microcomputer, an FPGA or a chip. The ADC using the single chip microcomputer can acquire sensing information output by various sensors, including temperature information, humidity information, pressure information and other various required information. The customized sensing command provided by the embodiment of the invention can be used for collecting various sensing information, wherein the parameter analysis of the sensing command is as follows: a custom sensory command frame format as shown in table 1, and a tag response packet format as shown in table 2.
TABLE 1 customized sensory Command Format
Figure BDA0001520189960000041
TABLE 2 sensing Command response Format
Data field Length of Description of the invention
Operating state 8 CommandOperating state of
Data of Corresponding to the length of the sensing command Actual sensed data
Handle
16 handle
Verification
16 CRC-16
The command code is: 0xB501, which is compatible with GB/T29768-2013 national standard ultrahigh frequency RFID protocol.
And secondly, the sensing type domain is a parameter of a sensing command, the value of the sensing type domain represents the type of sensing information to be acquired, the total number of bits is 16, and 2^16 sensing types can be distinguished.
Thirdly, storing the mark field to indicate whether to read the sensing information or not, or to put the collected sensing information into the memory, 00bIndicating that no sensing information is collected, only reading the stored sensing information value of the reading and writing pointer indication address, and reading the length which is the number of words indicated by the length field; 01bThe method comprises the steps that only collected sensing information is written into an address indicated by a pointer, and the sensing information does not need to be returned; 10bRepresenting the collected information, writing the sensing information into the address indicated by the pointer, and returning the collected information; 11bReserving;
the read-write pointer field is the address for reading the sensing information and recording the sensing information;
the length field is the number of the sensing information words to be collected and recorded, and because different sensing information and the data to be collected may be different, the length of the collection is defined here.
Handle, providing handshake signal; CRC-16 is a check code to check whether there is an error in the radio transmission. The sense command is 80bits in total.
The tag detects the command, and only when the Handle successfully matches with the CRC-16 of the tag, the command is executed, the corresponding sensing module is started to collect information, and whether the collected temperature information is written into the specified storage address is determined according to the storage mark; otherwise the tag will remain silent.
Fig. 2 is a sensing command execution flow chart in which a sensing command execution flow is made using temperature and pressure as representatives of sensing types, and other sensing types are similar thereto. The tag jumps to a sensing command processing module when receiving a sensing command, then detects CRC-16 and Handle, if the CRC-16 and the Handle pass, the execution is continued, otherwise, the operation is finished directly; selecting different wireless sensing network functions according to the sensing type; and determining whether to acquire and read and write the sensing information according to the storage mark, and determining the storage address and the data size of the sensing information according to the address and the length of the pointer. And finally, returning the data indicated by the length field in the sensing command according to the requirement.
The invention firstly proposes that the SM7 algorithm is realized by using assembly on a single chip microcomputer, and encryption and decryption of a label are realized by combining GB/T29768-2013 national standard ultrahigh frequency RFID, so that communication information can be prevented from being leaked and intercepted, and the like. The encryption/decryption module is used for carrying out encryption and decryption operation on data when the authentication protocol is realized, and the authentication operation is completed. The label adopts SM7 encryption and decryption algorithm, which is a domestic block encryption algorithm, the block length is 64bits, the following less than 64bits are supplemented with 0, then encryption is carried out, the key length is 128 bits, and the whole algorithm is in a Feistel structure.
The whole algorithm is a Feistel structure with 16 sub-layers, fig. 3 is a block diagram of the whole structure of the SM7 algorithm implemented in a single chip microcomputer, and a cycle instruction of the single chip microcomputer is used, so that the SM7 algorithm is started to be executed each time a new ciphertext needing to be encrypted is obtained, and 16 times of sub-key encryption are executed in total.
In fig. 3, K1, K2, …, K15 and K16 are sub-keys generated by keying the working key, and the data to be encrypted is divided into two paths of right and left 32bits (left path L0 and right path R0) each time for encryption operation. F0(32b) represents the result of XOR between the Data processed by the F function and the left path L0, R0(32b) | F0(32) represents that R0 and F0 are connected into 64bits Data1(R0 is on the left, F0 is on the right), Data1 continues to perform the sub-key encryption for the 2 nd time, and 3 to 16 times of sub-key encryption are continuously performed after the sub-key encryption is performed, and the sub-key encryption process is completely the same as the first time of execution. And obtaining Data16 after the last sub-key encryption, namely the 16 th sub-key encryption is finished, and obtaining new 64-bit Data which is the encrypted ciphertext after the Data16 is exchanged by the Data with the 32 bits. In the single chip microcomputer, the sub-key encryption process is repeatedly executed for 16 times, and the final output result is exchanged by the high bit and the low bit of the output result to obtain the ciphertext encrypted by the 64-bit block code.
The F function processing process in fig. 3 is similar to the sub-key encryption, only 32bits are input, the sub-key is also divided into 3 32bits, and only 3 times of execution are performed, wherein the sub-function input required for the position of the F function is 16bits, and 2 keys of 16bits, the 16bits data and the key of 16bits high are subjected to xor, S transformation is performed, P transformation is performed, then S transformation is performed after xor with the key of 16bits low, and the final result is shifted to the left by 7bits, wherein S can be realized by a lookup table, P transformation is linear transformation, and the function of P transformation is to realize mutual diffusion between data output by S transformation.
The encryption and decryption process of the GB/T29768-2013 national standard ultrahigh frequency RFID tag realized by the single chip microcomputer is shown in fig. 4, and 16 times of sub-key encryption or decryption operation are executed in a circulating manner.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (6)

1. Wireless energy collection formula GB/T29768 national standard thing networking label, its characterized in that includes: the device comprises a solar energy collecting circuit, a GSM900 frequency band radio frequency energy collecting circuit, a GSM1800 frequency band radio frequency energy collecting circuit, a charging and discharging management module, an energy memory, a modulator, a demodulator, a baseband signal processing module and a sensor;
the output end of the solar energy collecting circuit is connected with the first end of the charge and discharge management module; the output end of the GSM900 frequency band radio frequency energy collecting circuit is connected with the second end of the charging and discharging management module; the output end of the GSM1800 frequency band radio frequency energy collecting circuit is connected with the third end of the charge and discharge management module;
the fourth end of the charge and discharge management module is connected with the first end of the energy storage, and the second end of the energy storage is grounded;
the fifth end of the charge and discharge management module is respectively connected with the modulator, the demodulator, the baseband signal processing module and the sensor to provide working voltage for the modulator, the demodulator, the baseband signal processing module and the sensor;
the sensor is connected with a first input end of the baseband signal processing module, an output end of the baseband signal processing module is connected with an input end of the modulator, and an output end of the modulator is connected with the antenna; the input end of the demodulator is connected with the antenna, and the output end of the demodulator is connected with the second input end of the baseband signal processing module;
the data collected by the label is encrypted and decrypted in the single chip microcomputer, and the specific operation process is as follows:
subkeys K1, K2, …, K15, K16 generated by keying the working key;
the data to be encrypted is divided into a left path and a right path each time, 32bits are respectively encrypted, and the left path and the right path are marked as: left lane L0, right lane R0;
performing exclusive or on the data processed by the F function and the left path L0 to obtain F0(32 b); the processing procedure of the F function is as follows: the input of the F function is 16bits data and 2 16bits keys, and the 2 16bits keys are specifically: carrying out XOR on the 16bits data and the 16 bits-high key, carrying out S transformation, then carrying out P transformation, then carrying out XOR on the 16 bits-high key and the 16 bits-low key, then continuing the S transformation, and finally carrying out left shift by 7 bits;
r0 and F0 are concatenated as 64bits Data 1;
data1 continues to perform sub-key encryption for 2 times, and continues to perform sub-key encryption for 3 rd to 16 th times after the sub-key encryption is performed; the final 16 th subkey encryption gets Data 16;
the new 64-bit Data obtained by interchanging the high bit and the low bit of the Data16 is the encrypted ciphertext.
2. The wireless energy harvesting GB/T29768 national standard Internet of things tag according to claim 1, wherein the solar energy harvesting circuit comprises a solar panel, and the output of the solar panel is connected with the first end of the charging and discharging management module.
3. The GB/T29768 national standard Internet of things tag according to claim 1, wherein the GSM900 frequency band radio frequency energy collecting circuit comprises: the low-pass filter, the first matching network and the first rectifying unit; the antenna is connected with the input end of the low-pass filter, the output end of the low-pass filter is connected with the input end of the first matching network, the output end of the first matching network is connected with the input end of the first rectifying unit, and the output end of the first rectifying unit is connected with the second end of the charge-discharge management module.
4. The GB/T29768 national standard Internet of things tag according to claim 3, wherein the first matching network is a GSM 900-based optimized matching network.
5. The wireless energy harvesting GB/T29768 national standard Internet of things tag of claim 1, wherein the GSM1800 frequency band radio frequency energy harvesting circuit comprises: the antenna is further connected with the input end of the high-pass filter, the output end of the high-pass filter is connected with the input end of the second matching network, the output end of the second matching network is connected with the input end of the second rectifying unit, and the output end of the second rectifying unit is connected with the third end of the charge-discharge management module.
6. The wireless energy harvesting GB/T29768 national standard Internet of things tag of claim 5, wherein the second matching network is: a GSM 1800-based optimized matching network.
CN201711405359.7A 2017-12-22 2017-12-22 Wireless Energy Harvesting GB/T29768 National Standard IoT Label Active CN108021966B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711405359.7A CN108021966B (en) 2017-12-22 2017-12-22 Wireless Energy Harvesting GB/T29768 National Standard IoT Label

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711405359.7A CN108021966B (en) 2017-12-22 2017-12-22 Wireless Energy Harvesting GB/T29768 National Standard IoT Label

Publications (2)

Publication Number Publication Date
CN108021966A CN108021966A (en) 2018-05-11
CN108021966B true CN108021966B (en) 2021-05-25

Family

ID=62074359

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711405359.7A Active CN108021966B (en) 2017-12-22 2017-12-22 Wireless Energy Harvesting GB/T29768 National Standard IoT Label

Country Status (1)

Country Link
CN (1) CN108021966B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109194158A (en) * 2018-09-26 2019-01-11 电子科技大学 A kind of ultra wide band rectification circuit applied to electromagnetic energy collection system
CN112235042A (en) * 2020-09-14 2021-01-15 德清阿尔法创新研究院 Method for optimizing hardware of modern backscatter communication system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090159710A1 (en) * 2007-12-24 2009-06-25 Dynamics Inc. Cards and devices with magnetic emulators and magnetic reader read-head detectors
CN101901367A (en) * 2010-07-29 2010-12-01 苏州盖娅智能科技有限公司 Dual-power active RFID tag and control and implementation method thereof
CN101937519A (en) * 2010-08-27 2011-01-05 电子科技大学 RFID electronic tags that can be charged wirelessly
CN103164729A (en) * 2011-12-08 2013-06-19 上海佳频电子科技有限公司 Thin-film solar active radio frequency recognition electronic tag
CN106503773A (en) * 2016-10-21 2017-03-15 合肥工业大学 A kind of RFID sensing labels of self-energizing
CN106532277A (en) * 2016-10-27 2017-03-22 天津大学 Wireless sensor adopting multi-port tag antenna and solar energy collection function

Also Published As

Publication number Publication date
CN108021966A (en) 2018-05-11

Similar Documents

Publication Publication Date Title
CN102055611B (en) Low-power wireless data acquisition system
TWI650975B (en) LoRa mobile device providing mobile device direct access to LoRa information packet and data transmission method thereof
US20110194471A1 (en) Wake-up apparatus and wake-up method for low power sensor node
US8044774B1 (en) RFID tag chips and tags able to be partially killed and methods
CN107566014B (en) Wireless energy collection type wireless sensor network node
CN103636265B (en) Independent radio frequency wireless device with data retrieval capabilities
CN104680213A (en) Control method of rapid connection and data transmission among devices
CN108021966B (en) Wireless Energy Harvesting GB/T29768 National Standard IoT Label
CN104361388A (en) Ultrahigh-frequency wireless sensing tag
CN105550738A (en) Non-contact type card and communication and power supply method therefor
CN103413166A (en) Automatic switching power supply system for semi active RFID sensor tag
CN106532277A (en) Wireless sensor adopting multi-port tag antenna and solar energy collection function
CN103679224A (en) Radio frequency tag, mobile terminal, wireless communication system and radio frequency tag charging method
CN102142100A (en) High-frequency passive RFID (Radio Frequency Identification) analog front end circuit
WO2012129796A1 (en) A method for configuring a wireless device and a wireless device and system
KR20090098472A (en) Hybrid tags and how to use them
CN110234125A (en) A kind of radio frequency charging network data optimization methods based on the communication of reversed diffraction
Alzubi et al. Deployment of hash function to enhance message integrity in wireless body area network (WBAN)
CN103258221A (en) Ultrahigh-frequency reader-writer
CN204406445U (en) A kind of 125K low frequency activation device
CN201886502U (en) Electronic tag with external interface
WO2023050045A1 (en) Data transmission method, apparatus and system
CN206353042U (en) A kind of device detected for transportation environment
CN206226410U (en) A kind of data source and sink, emitter and receiver
CN102799904B (en) Reduce the method for rfid system data processing amount

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant