CN207895484U - A kind of temperature detection electronic tag applied to cold chain - Google Patents
A kind of temperature detection electronic tag applied to cold chain Download PDFInfo
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- CN207895484U CN207895484U CN201820144591.3U CN201820144591U CN207895484U CN 207895484 U CN207895484 U CN 207895484U CN 201820144591 U CN201820144591 U CN 201820144591U CN 207895484 U CN207895484 U CN 207895484U
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Abstract
A kind of temperature detection electronic tag applied to cold chain, including：RFID chip temperatures, dual-mode antenna and enclosed chip, the RFID chip temperatures are located at the dual-mode antenna on the enclosed chip, the dual-mode antenna includes short-circuit ring element and doublet unit, the short circuit ring element is of coupled connections with the doublet unit, the RFID chip temperatures are electrically connected in the short-circuit ring element, short circuit ring element structure annular in shape carries out impedance matching with the RFID chip temperatures.The utility model is pasted onto on the surface of temperature object to be measured convenient for conformal by being arranged RFID chip temperatures and dual-mode antenna on enclosed chip, has the advantages that simple in structure, light and beautiful.By the way that short-circuit ring element is set as cyclic structure, to carry out impedance matching with corresponding RFID chip temperatures, larger bandwidth is can get, there is stronger robustness.
Description
Technical field
The utility model is related to technology for radio frequency field more particularly to a kind of temperature detection electronics marks applied to cold chain
Label.
Background technology
RFID electronic label is a kind of contactless automatic identification technology, is operable in various rugged environments, adopts
It can identify the label of multiple high-speed motions simultaneously with corresponding read-write equipment.With the development of fresh electric business, China's cold chain object
Stream was more than just 26,000,000 tons in 2015, but also was increased with annual 25% speed.
In cold chain transportation process, two kinds of devices of bar-code label and active temperature harvester are generally used at present, to divide
Two applications of the commodity identification being related to and temperature monitoring are not realized, but have following drawback：On the one hand, when Cold Chain Logistics are transported
Between it is long, at low ambient temperatures, bar-code label, which can be hardened, to become fragile, label surface even freeze, frequently changed due to the use of environment,
Easily cause bar-code label abrasion, moist, type information obscures the problems such as being beyond recognition influence retrospect.On the other hand, conventional
Active temperature harvester cost it is higher, installation site is limited, and service life is also constrained by battery.
Utility model content
It is complete to provide a kind of applicable varying environment holding information for the shortcomings that the purpose of the utility model is to overcome the prior arts
Temperature detection electronic tag whole, with long service life.
In order to solve the above technical problems, the utility model uses following technical measures：
A kind of temperature detection electronic tag applied to cold chain, including：RFID chip temperatures, dual-mode antenna and encapsulation base
Piece, the RFID chip temperatures are located at the dual-mode antenna on the enclosed chip, it is characterised in that：The dual-mode antenna packet
Short-circuit ring element and doublet unit are included, the short circuit ring element is of coupled connections with the doublet unit, the RFID temperature
Chip is electrically connected in the short-circuit ring element, and short circuit ring element structure annular in shape is carried out with the RFID chip temperatures
Impedance matching.
The utility model can also be further perfect by following technical measures：
As a further improvement, setting an opening at the top of the short circuit ring element, the RFID chip temperatures are set to described open
In mouthful.
As a further improvement, the bottom of the short circuit ring element is connect with the doublet unit, the dipole list
Member includes first unit and second unit, and the first unit is respectively arranged on a left side for the short-circuit ring element with the second unit
Right both sides.
As a further improvement, the first unit includes the first big end and the first bending section, the first big end
It is connected with first bending section；The second unit includes the second largest end and the second bending section, the second largest end
It is connected with second bending section.
As a further improvement, the area and the area of the second largest end of the first big end are identical and described
The shape of first big end is different from the shape of the second largest end.
As a further improvement, the enclosed chip includes upper and lower two layers of substrate, it is respectively arranged on the RFID chip temperatures
With the upper and lower surface of the dual-mode antenna.
As a further improvement, the signal frequency that receives of the temperature detection electronic tag is 800-960Mhz, it is compatible
ISO/IOE18000-6C, EPCClass1Gen2 consensus standard.
Compared with prior art, the utility model has the following advantages：
1, by being arranged RFID chip temperatures and dual-mode antenna on enclosed chip, testing temperature is waited for convenient for conformal be pasted onto
On the surface of object, has the advantages that simple in structure, light and beautiful.
2, by the way that short-circuit ring element is set as cyclic structure, to carry out impedance matching with corresponding RFID chip temperatures,
Larger bandwidth is can get, there is stronger robustness.
3, by being connect with doublet unit in the bottom of short-circuit ring element, be conducive to the length control of temperature detection label
System is in reasonable range.
4, it by the way that first unit and second unit to be respectively arranged on to the left and right sides of short-circuit ring element, can reduce in signal
Signal interference during transmission between first unit and second unit, strong interference immunity.
5, by being set in doublet unit there are two big end, and the area equation of two big end, be conducive to increase
The intensity of receiving and transmitting signal ensures the isotropism of temperature detection electronic tag receiving and transmitting signal in space.
6, the shape of the first big end is different from the shape of the second largest end, is conducive to multiple labels row of overlapping in space
In the case of row, the signal interference between multiple labels is reduced, the group for the improving electronic tag property read.
7, by being set in doublet unit there are two bending section, the length of label on the one hand can be shortened, on the other hand
Energy loss in signals transmission can be minimized.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the utility model temperature detection electronic tag；
Attached drawing 2 is the dual-mode antenna structural schematic diagram of temperature detection electronic tag shown in FIG. 1；
Mark：
100- temperature detection electronic tags；1-RFID chip temperatures；2- dual-mode antennas；3- enclosed chips；
20- short circuit ring elements；21- doublet units；201- is open；210- first units；
The the first big ends 211-；The first bending sections 212-；220- second units；The second largest ends 221-；
The second bending sections 222-；
Specific implementation mode
The utility model is described in further detail with specific implementation mode below in conjunction with the accompanying drawings.
A kind of temperature detection electronic tag 100 applied to cold chain, including：RFID chip temperatures 1, dual-mode antenna 2 and envelope
Substrate 3 is filled, RFID chip temperatures 1 and dual-mode antenna 2 be located on enclosed chip 3, and temperature object to be measured is pasted onto convenient for conformal
On surface, has the advantages that simple in structure, light and beautiful.
Further, it is integrated with temperature sensor in RFID chip temperatures 1, measurement instruction is sent out in fixed type reader-writer
Afterwards, the ability with real-time measuring temperature.Table is carried out in 1 inside of RFID chip temperatures containing there are one the module for calculating RSSI value simultaneously
Levy received signal strength, reader can according to the size of RSSI value, come judge temperature detection electronic tag 100 and reader it
Between distance distance.In the multiple subregions in cold chain warehouse, since different subregions are different with a distance from reader, people can select
Read to property the temperature data of target area.
Specifically, RSSI value refers to the instruction of received signal intensity, the optional part of layer is transmitted wirelessly, for judging to link
Quality, and whether increase broadcast transmission intensity.Signaling point is measured at a distance from receiving point by the signal strength received, into
And a kind of location technology of location Calculation is carried out according to corresponding data.
In embodiment, dual-mode antenna 2 includes short-circuit ring element 20 and doublet unit 21, short-circuit ring element 20 and dipole
Unit 21 is of coupled connections.Dual-mode antenna 2 is one layer of metal film layer being made of short-circuit ring element 20 and doublet unit 21, gold
Belonging to film layer can be conductive, for example, the material of metal film layer can be copper, aluminium or silver.
In embodiment, RFID chip temperatures 1 are electrically connected in short-circuit ring element 20,20 structure annular in shape of short-circuit ring element,
To carry out impedance matching with RFID chip temperatures 1, larger bandwidth is can get, there is stronger robustness.Robustness refers to
Under certain type of perturbation action, including under the disturbance of self model, some performance indicator of system remains unchanged control system
Ability, i.e. the strong and weak index of anti-interference ability.The cyclic structure of short-circuit ring element 20 can be round, rectangular, oval
Etc. cyclic structures, it is preferred that short-circuit ring element 20 be annulus.
Further, the cyclic structure size of short-circuit ring element 20 and width are specific according to different RFID chip temperatures 1
Impedance value determine.Temperature detection electronic tag 100 is in different field in application, impedance in RFID chip temperatures 1
Value is different, therefore the cyclic structure size of short-circuit ring element 20 and width also difference.
In embodiment, 20 top of short-circuit ring element sets an opening 201, and RFID chip temperatures 1 are set to short-circuit ring element 20
Opening 201 in.RFID chip temperatures 1 20 are connected with short circuit ring element using falling packaged type, and reverse packaging process can be with
Make package dimension smaller, cost is lower, there is more superior height to match, the circuit characteristic of low latency, low crosstalk.
Further, the signal frequency range that receives of temperature detection electronic tag 100 is 800-960Mhz, when frequency is
When 900Mhz, the brachium of doublet unit 21 is 16.5cm, but in operating frequency range, temperature detection electronic tag 100 is whole
Body length is no more than 10cm.
In traditional temperature detection electronic tag, coupled with doublet unit 21 at the intermediate position of short-circuited conducting sleeve 20,
This mode can only be whole to shortening label using 1/2 perimeter of short-circuited conducting sleeve 20 as a part for the brachium of doublet unit 21
Body size is not apparent enough.In the present embodiment, by being of coupled connections in the bottom of short-circuit ring element 20 and doublet unit 21, energy
The entire perimeter of short-circuit ring element 20 is enough made full use of to be more advantageous to label as a part for the brachium of doublet unit 21
Size Control in reasonable range.
In embodiment, doublet unit 21 includes first unit 210 and second unit 220, first unit 210 and the second list
Member 220 is respectively arranged on the left and right sides of short-circuit ring element 20.The first unit 210 and during signal transmission can be reduced
Signal interference between two units 220, strong interference immunity ensure the stability of signal transmission.
In embodiment, first unit 210 includes the first big end 211 and the first bending section 212, the first big end 211 with
First bending section 212 connects.Play signal transmitting and receiving in the first big end 211；Second unit 220 includes the second largest end 221
With the second bending section 222, the second largest end 221 is connect with the second bending section 222, and the second largest end 221 is also used for receiving and transmitting signal.
Further, the first bending section 212 includes several arc-shaped transitions, and the quantity of arc-shaped transition can be according to specific need
It is selected, the second bending section 222 is identical as 212 structure of the first bending section, and the two is symmetrical arranged.Due to doublet unit
21 brachium is and the size of temperature detection electronic tag 100 depending on the working frequency of temperature detection electronic tag 100
It is unsuitable long, it is preferred that the first bending section 212 and the second bending section 222 are set can reduce the temperature there are three arc-shaped transition
Detect the length of electronic tag 100.
Specifically, the number of the arc-shaped transition of the first bending section 212 and the second bending section 222 is by doublet unit 21
The limitation of brachium.By in this present embodiment, the brachium of doublet unit 21 is 16.5cm, so limiting the sum of arc-shaped transition
It is 6.The first bending section 212 and the second bending section 222 cannot be too close from short-circuit ring element 20 simultaneously, and rational range is 3mm-
6mm can make doublet unit 21 lose the ability for receiving signal otherwise when working frequency is 800-960Mhz ranges.
Specifically, the spacing between two neighboring arc-shaped transition is smaller, generated signal interference is stronger；Meanwhile arc
The height of transition is higher, and generated signal interference is also stronger.Therefore, by the spacing and arc between adjacent arc-shaped transition
The height of transition is arranged in reasonable range.
In embodiment, the area of the first big end 211 is identical as the area of the second largest end 221, is conducive to increase transmitting-receiving
The intensity of signal ensures the isotropism of the receiving and transmitting signal in space of temperature detection electronic tag 100.
Specifically, the shape of the first big end 211 is different from the shape of the second largest end 221.When multiple temperature detections electricity
Subtab 100 in space overlapping arrangement when, if the shape of the first big end 211 and the shape of the second largest end 211 are all set
It is set to the identical symmetrical structure of shape, when reader works, signal interference when being overlapped due to the big end of same shape so that read
It writes device to be likely to only read the information of a uppermost label, but the information for being arranged in following label cannot be read.
Preferably, the first big end 211 is set as " I " type, the second largest end 221 is set as T-shape, is overlapped in multiple labels
When placement, by the position of the first of first temperature label the big end 211 and the second largest end 221 of second temperature label
Position is corresponding, i.e., big end " I " of first temperature label and the big end of T-shape of second temperature label overlap, and have
Property is read conducive to the signal interference between label, the group of raising temperature detection electronic tag 100 is avoided.
In embodiment, enclosed chip 3 includes upper and lower two layers of substrate, is respectively arranged on RFID chip temperatures 1 and dual-mode antenna 2
Upper and lower surface.The encapsulating material with flexible insulation, such as PET materials can be used in enclosed chip 3, is called poly- terephthaldehyde
Acetoacetic ester, the material have the performance of excellent high- and low-temperature resistance, can be used for a long time in 120 DEG C of temperature ranges, short-period used can
Resistance to 150 DEG C of high temperature is resistant to -70 DEG C of low temperature, and influences very little to its mechanical performance when high and low temperature, is widely used in cold chain transportation
Field.
Specifically, the size of enclosed chip 3 is 95*28mm；And 3 Pasting body surface of enclosed chip, in cold chain transportation
When, temperature detection electronic tag 100 is pasted onto fresh cargo surfaces, is worked under reader excitation.
In embodiment, the signal frequency that receives of temperature detection electronic tag 100 is 800-960Mhz, compatible ISO/IOE
18000-6C, 1 Gen of EPC Class, 2 consensus standards, can reach the performance of conventional passive electronic tag, while providing temperature
Information.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of protection.
Claims (7)
1. a kind of temperature detection electronic tag applied to cold chain, including：RFID chip temperatures, dual-mode antenna and enclosed chip,
The RFID chip temperatures are located at the dual-mode antenna on the enclosed chip, it is characterised in that：The dual-mode antenna includes
Short-circuit ring element and doublet unit, the short circuit ring element are of coupled connections with the doublet unit, the RFID temperature core
Piece is electrically connected in the short-circuit ring element, and short circuit ring element structure annular in shape is hindered with the RFID chip temperatures
Anti- matching.
2. a kind of temperature detection electronic tag applied to cold chain according to claim 1, it is characterised in that：The short circuit
An opening is set at the top of ring element, the RFID chip temperatures are set in the opening.
3. a kind of temperature detection electronic tag applied to cold chain according to claim 1, it is characterised in that：The short circuit
The bottom of ring element is connect with the doublet unit, and the doublet unit includes first unit and second unit, and described
Unit one is respectively arranged on the left and right sides of the short-circuit ring element with the second unit.
4. a kind of temperature detection electronic tag applied to cold chain according to claim 3, it is characterised in that：Described first
Unit includes the first big end and the first bending section, and the first big end is connected with first bending section；Described second
Unit includes the second largest end and the second bending section, and the second largest end is connected with second bending section.
5. a kind of temperature detection electronic tag applied to cold chain according to claim 4, it is characterised in that：Described first
The area of big end is identical as the area of the second largest end, and the shape of the first big end and the second largest end
Shape it is different.
6. a kind of temperature detection electronic tag applied to cold chain according to claim 1, it is characterised in that：The encapsulation
Substrate includes upper and lower two layers of substrate, is respectively arranged on the upper and lower surface of the RFID chip temperatures and the dual-mode antenna.
7. a kind of temperature detection electronic tag applied to cold chain according to claim 1, it is characterised in that：Described one kind
The signal frequency that receives of temperature detection electronic tag applied to cold chain is 800-960Mhz, compatible ISO/IOE 18000-6C,
2 consensus standards of EPC Class 1Gen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820144591.3U CN207895484U (en) | 2018-01-29 | 2018-01-29 | A kind of temperature detection electronic tag applied to cold chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820144591.3U CN207895484U (en) | 2018-01-29 | 2018-01-29 | A kind of temperature detection electronic tag applied to cold chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207895484U true CN207895484U (en) | 2018-09-21 |
Family
ID=63546099
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820144591.3U Active CN207895484U (en) | 2018-01-29 | 2018-01-29 | A kind of temperature detection electronic tag applied to cold chain |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942131A (en) * | 2019-10-04 | 2020-03-31 | 海王数据信息技术(天津)有限公司 | RFID temperature measurement tag, control method and application device |
| CN113546247A (en) * | 2021-07-09 | 2021-10-26 | 浙江大学 | Transfusion process monitoring device and method based on UHF RFID |
| WO2022134774A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江大学 | Flexible rfid passive temperature measurement tag printed on basis of mxene ink |
-
2018
- 2018-01-29 CN CN201820144591.3U patent/CN207895484U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942131A (en) * | 2019-10-04 | 2020-03-31 | 海王数据信息技术(天津)有限公司 | RFID temperature measurement tag, control method and application device |
| WO2022134774A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江大学 | Flexible rfid passive temperature measurement tag printed on basis of mxene ink |
| CN113546247A (en) * | 2021-07-09 | 2021-10-26 | 浙江大学 | Transfusion process monitoring device and method based on UHF RFID |
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