CN219285739U - Passive temperature and humidity monitoring label - Google Patents
Passive temperature and humidity monitoring label Download PDFInfo
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- CN219285739U CN219285739U CN202320226443.7U CN202320226443U CN219285739U CN 219285739 U CN219285739 U CN 219285739U CN 202320226443 U CN202320226443 U CN 202320226443U CN 219285739 U CN219285739 U CN 219285739U
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- communication antenna
- capacitance measuring
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Measuring Temperature Or Quantity Of Heat (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses a passive temperature and humidity monitoring tag which comprises an NFC chip, an NFC communication antenna, a capacitance measuring electrode and a sheet-shaped temperature change material, wherein the NFC chip is arranged on the NFC communication antenna; the capacitance measuring electrode is electrically connected with the capacitance measuring end of the NFC chip, and the NFC communication antenna is electrically connected with the I/O serial port of the NFC chip; the NFC chip, the NFC communication antenna and the capacitance measuring electrode are attached to the sheet-shaped temperature-changing material after being connected, and capacitance value changes of the sheet-shaped temperature-changing material under different humiture are measured through the capacitance measuring electrode. Compared with MCU (CPU) chips and sensor chips required by the existing temperature and humidity monitoring equipment, the cost is greatly reduced by adopting the NTAG223DNA chip. The label is convenient to use, can be stuck on the surface of a product, and can also be directly placed in a packaging bag. The temperature and humidity of links such as production, preservation and transportation of products can be read at any time by designing an APP and other receiving devices and using handheld equipment such as a mobile phone, a POS machine and the like or desk type read-write equipment at any time.
Description
Technical Field
The utility model relates to the technical field of passive tags, in particular to a passive temperature and humidity monitoring tag.
Background
The temperature of the environment affects the production, preservation and transportation processes of foods, medicines, vaccines and the like very much, but the existing temperature and humidity monitoring equipment (such as a hygrothermograph) has the defects of high cost (tens of yuan to hundreds of yuan per table) and inconvenient data acquisition, so that a plurality of merchants do not want to put or put materials into stealth and material reduction, the real monitoring effect is not achieved, and the quality of production, preservation and transportation links of the products such as foods, medicines, vaccines and the like cannot be guaranteed at all.
Disclosure of Invention
The utility model aims to solve the problems of high cost and inconvenient data acquisition in the prior art, and provides a passive temperature and humidity monitoring tag.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a passive temperature and humidity monitoring tag comprises an NFC chip, an NFC communication antenna, a capacitance measuring electrode and a sheet-shaped temperature change material; the capacitance measuring electrode is electrically connected with the capacitance measuring end of the NFC chip, and the NFC communication antenna is electrically connected with the I/O serial port of the NFC chip; the NFC chip, the NFC communication antenna and the capacitance measuring electrode are attached to the sheet-shaped temperature-changing material after being connected, and capacitance value changes of the sheet-shaped temperature-changing material under different humiture are measured through the capacitance measuring electrode.
Further, the NFC chip is an NTAG223DNA chip, and the NFC communication antenna is an NTAG223DNA communication antenna.
Further, two pins of the capacitance measuring electrode are respectively connected with a GND pin and a DP pin of the NTAG223DNA chip; and two pins of the NTAG223DNA communication antenna are respectively connected with the LA pin and the LB pin of the NTAG223DNA chip.
Further, the upper electrode and the lower electrode of the capacitance measuring electrode are staggered in a tooth shape and are attached to the sheet-shaped temperature-changing material.
Further, the circuit coil of the NTAG223DNA communication antenna is circular.
Further, the outer contour of the NFC chip, the NFC communication antenna and the capacitance measuring electrode after being connected is uniform and coincident with the outer contour of the flaky temperature change material in shape and size.
Compared with the prior art, the utility model has the beneficial effects that:
compared with MCU (CPU) chips and sensor chips required by the existing temperature and humidity monitoring equipment, the cost is greatly reduced by adopting the NTAG223DNA chip.
The label is convenient to use, can be stuck on the surface of a product, and can also be directly placed in a packaging bag. The temperature and humidity of links such as production, preservation and transportation of products can be read at any time by designing an APP and other receiving devices and using handheld equipment such as a mobile phone, a POS machine and the like or desk type read-write equipment at any time.
Drawings
Fig. 1 is a schematic structural diagram of a passive temperature and humidity monitoring tag according to the present utility model.
Fig. 2 is a schematic diagram of a circuit structure of a passive temperature and humidity monitoring tag for measurement according to the present utility model.
Description of the reference numerals:
1. capacitance measuring electrode 2, NFC communication antenna, 3, NFC chip, 4, slice temperature change material.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.
The utility model provides a passive temperature and humidity monitoring tag which comprises an NFC chip 3, an NFC communication antenna 2, a capacitance measuring electrode 1 and a sheet-shaped temperature change material 4, wherein the NFC chip is arranged on the NFC communication antenna; the capacitance measuring electrode 1 is electrically connected with a capacitance measuring end of the NFC chip 3, and the NFC communication antenna 2 is electrically connected with an I/O serial port of the NFC chip 3; the NFC chip 3, the NFC communication antenna 2 and the capacitance measuring electrode 1 are attached to the sheet-shaped temperature-changing material 4 after being connected, and capacitance value changes of the sheet-shaped temperature-changing material 4 under different humiture are measured through the capacitance measuring electrode 1. The NFC communication antenna 2 is based on an RF ID radio frequency identification technology, adopts a transformer co-coupling matching as a hardware processing scheme for communication, completes verification of a data transmission process through a communication instruction of a processor, and is designed and manufactured by modulating and processing an RF ID environment through a matching circuit. The circuit coil is generally made of a circuit coil manufactured by a winding/printing/etching process and ferrite materials with anti-interference capability.
In order to reduce the cost and improve the efficiency, the NFC chip 3 is an NTAG223DNA chip, and the NFC communication antenna 2 is an NTAG223DNA communication antenna. The NTAG223DNA chip and the NTAG223DNA communication antenna are adopted, so that a simple touch-control solution can be provided, and consumers can exchange information, access content and service simply and intuitively. Compared with MCU (CPU) chips and sensor chips required by the existing temperature and humidity monitoring equipment, the cost is greatly reduced by adopting the NTAG223DNA chip, and the cost can be generally reduced to about one unit.
As shown in fig. 2, in a preferred embodiment, two pins of the capacitance measuring electrode 1 are connected to a GND pin and a DP pin of the NTAG223DNA chip, respectively; and two pins of the NTAG223DNA communication antenna are respectively connected with the LA pin and the LB pin of the NTAG223DNA chip. Further, the upper and lower electrodes of the capacitance measuring electrode 1 are staggered in a tooth shape and are attached to the sheet-shaped temperature-changing material 4. And the circuit coil of the NTAG223DNA communication antenna is annular. The outer contour of the NFC chip 3, the NFC communication antenna 2 and the capacitance measuring electrode 1 after being connected is uniform and coincident with the outer contour of the sheet-shaped temperature-changing material 4 in shape and size. And placing the label into a temperature and humidity box, setting different temperatures and humidity, and respectively measuring the capacitance value of the label. The temperature, humidity and sheet-like temperature change material 4 are determined as a function of the change (the temperature change material is different in temperature and humidity characteristics, and the function is also different). And writing application software according to the function relation of the two. Through designing receiving arrangement such as APP, at any time with handheld device such as cell-phone, POS machine or desk-top read-write equipment, read the humiture of links such as product production, save transportation at any time.
Compared with the MCU (CPU) chip and the sensor chip required by the conventional temperature and humidity monitoring equipment, the passive temperature and humidity monitoring tag provided by the utility model has the advantage that the cost is greatly reduced by adopting the NTAG223DNA chip. The label is convenient to use, can be stuck on the surface of a product, and can also be directly placed in a packaging bag. The temperature and humidity of links such as production, preservation and transportation of products can be read at any time by designing an APP and other receiving devices and using handheld equipment such as a mobile phone, a POS machine and the like or desk type read-write equipment at any time.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The passive temperature and humidity monitoring tag is characterized by comprising an NFC chip (3), an NFC communication antenna (2), a capacitance measuring electrode (1) and a flaky temperature change material (4);
the capacitance measuring electrode (1) is electrically connected with a capacitance measuring end of the NFC chip (3), and the NFC communication antenna (2) is electrically connected with an I/O serial port of the NFC chip (3);
the NFC chip (3), the NFC communication antenna (2) and the capacitance measuring electrode (1) are attached to the sheet-shaped temperature-changing material (4) after being connected, and capacitance value changes of the sheet-shaped temperature-changing material (4) under different humiture are measured through the capacitance measuring electrode (1).
2. The passive temperature and humidity monitoring tag according to claim 1, wherein the NFC chip (3) is an NTAG223DNA chip, and the NFC communication antenna (2) is an NTAG223DNA communication antenna.
3. The passive temperature and humidity monitoring tag according to claim 2, wherein two pins of the capacitance measuring electrode (1) are respectively connected with a GND pin and a DP pin of the NTAG223DNA chip; and two pins of the NTAG223DNA communication antenna are respectively connected with the LA pin and the LB pin of the NTAG223DNA chip.
4. The passive temperature and humidity monitoring tag according to claim 2, wherein the upper and lower electrodes of the capacitance measuring electrode (1) are staggered in a tooth shape and are attached to the sheet-shaped temperature-changing material (4).
5. The passive temperature and humidity monitoring tag of claim 2 wherein the circuit coil of the NTAG223DNA communication antenna is annular.
6. The passive temperature and humidity monitoring tag according to claim 2, wherein the outer contour of the NFC chip (3), the NFC communication antenna (2) and the capacitance measuring electrode (1) after being connected is uniform and coincident with the outer contour of the sheet-shaped temperature change material (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320226443.7U CN219285739U (en) | 2023-02-03 | 2023-02-03 | Passive temperature and humidity monitoring label |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320226443.7U CN219285739U (en) | 2023-02-03 | 2023-02-03 | Passive temperature and humidity monitoring label |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219285739U true CN219285739U (en) | 2023-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320226443.7U Active CN219285739U (en) | 2023-02-03 | 2023-02-03 | Passive temperature and humidity monitoring label |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219285739U (en) |
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2023
- 2023-02-03 CN CN202320226443.7U patent/CN219285739U/en active Active
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