CN205050168U - Passive low frequency RFID humiture label - Google Patents
Passive low frequency RFID humiture label Download PDFInfo
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- CN205050168U CN205050168U CN201520723504.6U CN201520723504U CN205050168U CN 205050168 U CN205050168 U CN 205050168U CN 201520723504 U CN201520723504 U CN 201520723504U CN 205050168 U CN205050168 U CN 205050168U
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- low frequency
- frequency rfid
- power supply
- controller
- humidity sensor
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Abstract
The utility model discloses a passive low frequency RFID humiture label, it includes microcontroller, temperature and humidity sensor, low frequency RFID controller, low frequency RFID antenna, rectifier regulator module and power supply electric capacity, temperature and humidity sensor, low frequency RFID controller links to each other with microcontroller respectively, low frequency RFID antenna is connected with low frequency RFID controller, low frequency RFID controller, the rectifier regulator module is connected with power supply electric capacity electricity in proper order, power supply electric capacity is microcontroller, temperature and humidity sensor, low frequency RFID controller provides operating voltage. The utility model discloses small, the consumption is little, does not totally need power supply battery and external power line, gives outside card reader or server through wireless RFID mode with information transfer, and safe and reliable is stablized in addition more in the later maintenance work that has significantly reduced, can be applied to and keep apart permanent warm wetness monitoring under the environment.
Description
Technical field
The utility model relates to temperature-humidity monitoring technical field, especially relates to a kind of passive low frequency RFID humiture label.
Background technology
Electronic tag, also known as radio-frequency (RF) identification (RadioFrequencyIdentification is called for short RFID), is a kind of contactless automatic identification technology.By the radiowaves launched at a distance of several centimetres to several meters distance inner sensors, the information that can store in reading electronic labels, the identity of the article of identification representated by electronic tag, people and utensil.
At present, temperature-humidity monitoring is widely used in industrial and agricultural production, scientific research and sphere of life, as: agriculture field, the humiture of detection soil, air is necessary to grasp crop growth situation; To some industry or human settlements of humiture sensitivity, such as food storehouse, library, family housing, industrial inflammable and explosive workshop, medical sample tube, reefer etc.In prior art, humiture electronic tag adopts the active electronic label with battery mostly, takes and changes battery every now and then or need externally fed electric wire, and power consumption is comparatively large, and maintenance work is more, and battery is short, has pollution to environment.
Summary of the invention
For solving the problem, the purpose of this utility model is to provide simple, economical and practical, the safe and reliable passive low frequency RFID humiture label of a kind of structure.
For achieving the above object, the utility model adopts following technical scheme:
A kind of passive low frequency RFID humiture label, it comprises microcontroller, Temperature Humidity Sensor, low frequency RF ID controller, low frequency RFID antenna, rectifying and voltage-stabilizing module and power supply electric capacity, Temperature Humidity Sensor, low frequency RF ID controller are connected with microcontroller respectively, low frequency RFID antenna is connected with low frequency RF ID controller, low frequency RF ID controller, rectifying and voltage-stabilizing module are electrically connected successively with power supply electric capacity, and power supply electric capacity is microcontroller, Temperature Humidity Sensor, low frequency RF ID controller provide operating voltage.
Described passive low frequency RFID humiture label, its power supply capacitance is 5 ~ 20uF.
Owing to adopting technical scheme as above, the utility model has following superiority:
This passive low frequency RFID humiture label, its volume is little, power consumption is little, and cost of manufacture is low, does not need supplying cell and externally fed line completely, by wireless RF ID mode, information is passed to outside card reader or server, really achieve one-step installation, " forever " uses, and greatly reduces later maintenance work, and stability and safety is reliable more, temperature and humidity monitor permanent under isolation environment can be applied to.
Accompanying drawing explanation
Fig. 1 is the principle of work schematic diagram of the utility model passive low frequency RFID humiture label.
Embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in Figure 1, this passive low frequency RFID humiture label, it comprises microcontroller, Temperature Humidity Sensor, low frequency RF ID controller, low frequency RFID antenna, rectifying and voltage-stabilizing module and power supply electric capacity, be connected with microcontroller for providing the Temperature Humidity Sensor of temperature and humidity data to microcontroller, low frequency RF ID controller is connected with microcontroller, low frequency RFID antenna is connected with two antenna input and output pins of low frequency RF ID controller, low frequency RF ID controller, rectifying and voltage-stabilizing module is electrically connected successively with power supply electric capacity, power supply electric capacity is microcontroller, Temperature Humidity Sensor, low frequency RF ID controller provides operating voltage, power supply capacitance is 5 ~ 20uF.
All energy of the utility model passive low frequency RFID humiture label come from 125kHz low frequency RFID antenna, and data transmission is by 125kHz low frequency RFID antenna equally.During outside card reader reading tag information, first low frequency RF ID charging signals is launched, when low frequency RF ID controller receives this RFID signal via low frequency RFID antenna, the energy that meeting autostore this RFID signal itself is entrained, is stored in power supply electric capacity after rectifying and voltage-stabilizing resume module.Then card reader sends low frequency RF ID read signal, the reading signal of card reader automatically detected, automatically will wake microcontroller up via low frequency RFID antenna low frequency RF ID controller, and controller controls Temperature Humidity Sensor and measures warm and humid tolerance.Continuation is sent charging signals after sending read signal by card reader, gives the microcontroller and Temperature Humidity Sensor energy supply of measuring humiture.After microcontroller reads humiture information, information is sent to low frequency RF ID controller by SPI, and this information is stored in the data-carrier store EEPROM of self by low frequency RF ID controller.When card reader charging signals stops, low frequency RF ID controller will utilize the electricity of power supply capacitance stores, instantaneously the data in EEPROM are sent to card reader by low frequency RFID antenna, card reader detects the signal that low frequency RF ID controller sends it back, extract humiture information wherein, shown by liquid crystal display or be sent to server by network.
Above-mentioned microcontroller adopts MSP series monolithic, as MSP430F2274, MSP430F2419 etc.
Above-mentioned Temperature Humidity Sensor adopts low power consumption digital Temperature Humidity Sensor, if model is SHT20 or SHT21.
Above-mentioned low frequency RF ID controller model is TMS37157.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a passive low frequency RFID humiture label, it is characterized in that: it comprises microcontroller, Temperature Humidity Sensor, low frequency RF ID controller, low frequency RFID antenna, rectifying and voltage-stabilizing module and power supply electric capacity, Temperature Humidity Sensor, low frequency RF ID controller are connected with microcontroller respectively, low frequency RFID antenna is connected with low frequency RF ID controller, low frequency RF ID controller, rectifying and voltage-stabilizing module are electrically connected successively with power supply electric capacity, and power supply electric capacity is microcontroller, Temperature Humidity Sensor, low frequency RF ID controller provide operating voltage.
2. passive low frequency RFID humiture label according to claim 1, is characterized in that: its power supply capacitance is 5 ~ 20uF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520723504.6U CN205050168U (en) | 2015-09-18 | 2015-09-18 | Passive low frequency RFID humiture label |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520723504.6U CN205050168U (en) | 2015-09-18 | 2015-09-18 | Passive low frequency RFID humiture label |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205050168U true CN205050168U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520723504.6U Expired - Fee Related CN205050168U (en) | 2015-09-18 | 2015-09-18 | Passive low frequency RFID humiture label |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106503773A (en) * | 2016-10-21 | 2017-03-15 | 合肥工业大学 | A kind of RFID sensing labels of self-energizing |
| CN106503775A (en) * | 2016-11-08 | 2017-03-15 | 合肥工业大学 | Being taken based on the television tower of RFID can energy supplying system |
| CN106650879A (en) * | 2016-12-22 | 2017-05-10 | Tcl集团股份有限公司 | Intelligent RFID tag and working method thereof |
| WO2018107677A1 (en) * | 2016-12-12 | 2018-06-21 | 北京智芯微电子科技有限公司 | Power supply rectification circuit for electronic tag |
| WO2021047350A1 (en) * | 2019-09-11 | 2021-03-18 | 北京海益同展信息科技有限公司 | Patrol apparatus, patrol system and method for temperature measurement |
| EP4141185A1 (en) * | 2021-08-30 | 2023-03-01 | Detect System LLC | Roof monitoring system using a serial bus |
| EP4141186A1 (en) * | 2021-08-30 | 2023-03-01 | Detect System LLC | Roof monitoring system where a scanning device is moved to different zones |
-
2015
- 2015-09-18 CN CN201520723504.6U patent/CN205050168U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106503773A (en) * | 2016-10-21 | 2017-03-15 | 合肥工业大学 | A kind of RFID sensing labels of self-energizing |
| CN106503775A (en) * | 2016-11-08 | 2017-03-15 | 合肥工业大学 | Being taken based on the television tower of RFID can energy supplying system |
| WO2018107677A1 (en) * | 2016-12-12 | 2018-06-21 | 北京智芯微电子科技有限公司 | Power supply rectification circuit for electronic tag |
| KR20190139830A (en) * | 2016-12-12 | 2019-12-18 | 베이징 스마트칩 마이크로일렉트로닉스 테크놀로지 컴퍼니 리미티드 | Power rectifier circuit of radio frequency identification chip |
| AU2017374541B2 (en) * | 2016-12-12 | 2020-05-07 | Beijing Smartchip Microelectronics Company Limited | Power supply rectification circuit for electronic tag |
| KR102256810B1 (en) | 2016-12-12 | 2021-05-27 | 베이징 스마트칩 마이크로일렉트로닉스 테크놀로지 컴퍼니 리미티드 | Power rectifier circuit of radio frequency identification chip |
| CN106650879A (en) * | 2016-12-22 | 2017-05-10 | Tcl集团股份有限公司 | Intelligent RFID tag and working method thereof |
| WO2021047350A1 (en) * | 2019-09-11 | 2021-03-18 | 北京海益同展信息科技有限公司 | Patrol apparatus, patrol system and method for temperature measurement |
| EP4141185A1 (en) * | 2021-08-30 | 2023-03-01 | Detect System LLC | Roof monitoring system using a serial bus |
| EP4141186A1 (en) * | 2021-08-30 | 2023-03-01 | Detect System LLC | Roof monitoring system where a scanning device is moved to different zones |
| US11686644B2 (en) | 2021-08-30 | 2023-06-27 | Detec Systems Llc | Zoned roof monitoring system |
| US12111232B2 (en) | 2021-08-30 | 2024-10-08 | Detec Systems Llc | Zoned roof monitoring system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20170918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |