CN104966119A - RFID temperature tag - Google Patents
RFID temperature tag Download PDFInfo
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- CN104966119A CN104966119A CN201510326080.4A CN201510326080A CN104966119A CN 104966119 A CN104966119 A CN 104966119A CN 201510326080 A CN201510326080 A CN 201510326080A CN 104966119 A CN104966119 A CN 104966119A
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- temperature
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- frequency identification
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Abstract
The present invention discloses an RFID temperature tag used for on-line temperature monitoring of heating equipment. The RFID temperature tag comprises: a thermoelectric power generation sheet having a cold end and a hot end; an RFID temperature sub-tag which is connected with the cold end and is used for measuring the temperature of the cold end; a sub-tag outside temperature sensing chip which is contacted with the heating equipment and is used for measuring the temperature of the heating equipment; and a power supply management chip which is used for converting unstable voltage generated by the thermoelectric power generation sheet into stable voltage, so as to supply power to the RFID temperature sub-tag and the sub-tag outside temperature sensing chip. The RFID temperature tag of the present invention can operate by using the energy provided by the thermoelectric power generation sheet, and has the characteristics of low cost for energy acquisition, high reliability, and long service life.
Description
Technical field
The present invention relates to radio-frequency (RF) identification and wireless temperature field of sensing technologies, particularly relate to a kind of radio frequency identification temperature label, more specifically, relate to a kind of radio frequency identification temperature label possessing thermo-electric generation function.
Background technology
Radio-frequency (RF) identification is a kind of contactless automatic identification technology, has the data-transformation facility of low-power consumption, can be applied to the multiple fields such as logistics management, identification, communications and transportation, food medical treatment and the care of animal.If by there is the built-in chip type of temperature measurement function in RFID tag, then the RFID tag with temperature measurement function can be obtained, i.e. radio-frequency (RF) identification temperature label.
Current, radio-frequency (RF) identification temperature label is widely used in Industry Control, medical treatment and fields of measurement, such as: utilize RFID tag can carry out online real time temperature monitoring to the heat-producing device (such as high-tension switch cabinet, huge computer servers etc.) with potential potential safety hazard.But because traditional active radio frequency identification temperature label needs to use powered battery, therefore serviceable life is limited, and this improves cost on the one hand, reduces the reliability of measurement on the other hand.In addition, because these radio-frequency (RF) identification temperature labels need to work under higher temperature environment for a long time usually, therefore it is very high to the reliability requirement of battery and components and parts, thus causes cost greatly to increase.
Therefore wish a kind of technical scheme to overcome or at least to alleviate in the above-mentioned defect of prior art one or more.
Summary of the invention
The object of the present invention is to provide and a kind ofly overcome or at least alleviate the one or more radio frequency identification temperature label in the above-mentioned defect of prior art, its reliability is higher, is conducive to reducing costs.
For achieving the above object, the invention provides a kind of radio frequency identification temperature label, described radio frequency identification temperature label comprises:
Thermo-electric generation sheet, it has cold junction and hot junction, and described hot junction is used for contacting with heat-producing device;
Radio frequency identification temperature subtab, it is connected with described cold junction, for measuring the temperature of described cold junction;
The outer temperature sensing chip of subtab, it contacts with described heat-producing device, for measuring the temperature of described heat-producing device; And
Power management chip, its input end connects the voltage output end of described thermo-electric generation sheet, the output terminal of power management chip connects described radio frequency identification temperature subtab and the outer temperature sensing chip of described subtab, the unstable voltage transitions that described power management chip is used for described thermo-electric generation sheet produces becomes burning voltage, with to radio frequency identification temperature subtab and the outer temperature sensing chip power supply of described subtab.
Preferably, when the difference of the temperature of described heat-producing device and the environment temperature residing for it be greater than set threshold value time, the temperature recorded based on the outer temperature sensing chip of described subtab determines the temperature of described heat-producing device.
Preferably, described radio frequency identification temperature subtab comprises:
Wireless data transfer module, it is connected with one chip microcomputer, for being realized the data interaction between one chip microcomputer and sensing data wireless collection equipment by antenna;
One chip microcomputer, it comprises core control circuit, memory circuitry and sensor interface circuitry, temperature survey is carried out to heat-producing device for controlling subtab outer temperature sensing chip and the data recorded are transferred to sensing data wireless collection equipment by wireless data transfer module, and sending controling instruction controls temperature sensing chip in subtab carries out temperature survey to the cold junction of thermo-electric generation sheet and the data recorded are transferred to sensing data wireless collection equipment by wireless data transfer module; And
Temperature sensing chip in subtab, it is connected with one chip microcomputer, for measuring the temperature of cold junction.
Preferably, described wireless data transfer module, initiatively can be communicated to sensing data wireless collection equipment emitting electromagnetic wave by antenna.
Preferably, the outer temperature sensing chip of described subtab communicate with described sensor interface circuitry between interface signal comprise bidirectional linked list clock signal and bi-directional serial data signal.
Preferably, described radio frequency identification temperature label, also comprises heat radiator, and it is for dispelling the heat to described cold junction.
Because the present invention is provided with thermo-electric generation sheet, radio frequency identification temperature subtab, the outer temperature sensing chip of subtab and power management chip, and the hot junction of thermo-electric generation sheet is contacted with heat-producing device, also the input end of power management chip is connected cold junction and the hot junction of thermo-electric generation sheet, output terminal connects radio frequency identification temperature subtab and the outer temperature sensing chip of subtab, the unstable voltage transitions that thermo-electric generation sheet produces can be become burning voltage by power management chip, and export to radio frequency identification temperature subtab and the outer temperature sensing chip of subtab, compared with the defect that cost is high and Measurement reliability is low needing in prior art to use powered battery to bring, the energy that the present invention can utilize thermo-electric generation sheet to provide carries out work, therefore the present invention obtains that the cost of the energy is lower and reliability is higher.In addition; by means of thermo-electric generation sheet; radio frequency identification temperature subtab and power management chip and heat-producing device are also spaced apart by the present invention; thus can avoid directly contacting with heat-producing device; and then the effect of protect IC and components and parts can be played on the one hand; be conducive to promoting reliability and increasing the service life, reduce the requirement to chip and components and parts on the other hand, reduce further cost.
The present invention is suitable for the online real time temperature monitoring being applied in heat-producing device.
Accompanying drawing explanation
For making object of the invention process, technical scheme and advantage clearly, below in conjunction with embodiment and accompanying drawing, to the detailed description of the present invention as after, wherein:
Fig. 1 is the structural representation of an embodiment of radio frequency identification temperature label provided by the present invention;
Fig. 2 is the structural representation of an embodiment of radio frequency identification temperature subtab in Fig. 1.
Reference numeral:
| 10 | Thermo-electric generation sheet | 20 | Heat-producing device |
| 30 | Radio frequency identification temperature subtab | 40 | The outer temperature sensing chip of subtab |
| 50 | Power management chip | 60 | Sensing data wireless collection equipment |
| 70 | Heat radiator | 11 | Cold junction |
| 12 | Hot junction | 31 | Antenna |
| 301 | Wireless data transfer module | 302 | One chip microcomputer |
| 303 | Temperature sensing chip in subtab | 3021 | Core control circuit |
| 3022 | Memory circuitry | 3023 | Sensor interface circuitry |
Embodiment
In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
Shown in Fig. 1 is the structural representation of an embodiment of radio frequency identification temperature label provided by the present invention.As shown in Figure 1, the radio frequency identification temperature label provided in the present embodiment comprises thermo-electric generation sheet 10, radio frequency identification temperature subtab 30, the outer temperature sensing chip 40 of subtab and power management chip 50, wherein:
Thermo-electric generation sheet 10 can based semiconductor technology realize, and such as adopts semiconductor temperature differential generating sheet.Thermo-electric generation sheet 10 has cold junction 11 and hot junction 12, and hot junction 12 contacts with heat-producing device 20, and the temperature difference between such cold junction 11 and hot junction 12 is by generation unstable voltage.This unstable voltage can be used as radio frequency identification temperature label work institute energy requirement in the present embodiment, compared with the defect that cost is high and Measurement reliability is low needing in prior art to use powered battery to bring, in the present embodiment, radio frequency identification temperature label obtains that the cost of the energy is lower and reliability is higher.
The input end of power management chip 50 connects cold junction 11 and described hot junction 12, and power management chip 50 becomes burning voltage for the unstable voltage transitions produced by thermo-electric generation sheet 10 and exports.The output terminal of power management chip 50 connects radio frequency identification temperature subtab 30 and the outer temperature sensing chip 40 of subtab, and burning voltage is exported to radio frequency identification temperature subtab 30 and the outer temperature sensing chip 40 of subtab by power management chip 50.
Radio frequency identification temperature subtab 30 is connected with cold junction 11, for measuring the temperature of cold junction 11.The outer temperature sensing chip 40 of subtab, it contacts with heat-producing device 20, for measuring the temperature of heat-producing device 20.As can be seen here; by means of thermo-electric generation sheet 10; radio frequency identification temperature subtab 30 and power management chip 50 are also spaced apart with heat-producing device 20 by the present embodiment; thus can avoid directly contacting with heat-producing device 20; and then the effect of protect IC and components and parts can be played on the one hand; be conducive to promoting reliability and increasing the service life, reduce the requirement to chip and components and parts on the other hand, reduce further cost.
When the temperature of heat-producing device 20 and ambient temperature difference larger time, thermo-electric generation sheet 10 and power management chip 50 can provide the burning voltage of enough driving forces to radio frequency identification temperature subtab 30 and the outer temperature sensing chip 40 of subtab, under this kind of situation, obtained the temperature of heat-producing device 20 by the outer temperature sensing chip 40 of subtab.Particularly, outside sensing data wireless collection equipment 60 both sent work order to radio frequency identification temperature subtab 30, also can send work order by radio frequency identification temperature subtab 30 to temperature sensing chip 40 outside subtab.The temperature of the cold junction 11 of the thermo-electric generation sheet 10 that radio frequency identification temperature subtab 30 is recorded flows to sensing data wireless collection equipment 60, meanwhile, outside subtab, the temperature of the heat-producing device 20 that temperature sensing chip 40 is recorded flows to sensing data wireless collection equipment 60 by radio frequency identification temperature subtab 30.
As a kind of preferred implementation of radio frequency identification temperature subtab 30, as shown in Figure 2, antenna 31 is connected with described radio frequency identification temperature subtab 30, described radio frequency identification temperature subtab 30 is not by means of only antenna 31 and sensing data wireless collection equipment 60 information interaction, and also temperature sensing chip 40 outer with subtab is connected and information interaction.As can be seen from the figure, unstable voltage vdd0 is provided to power management chip 50 by thermo-electric generation sheet 10, power management chip 50 is connected with described radio frequency identification temperature subtab 30 with the outer temperature sensing chip 40 of subtab, the unstable photovoltaic conversion provided by thermo-electric generation sheet 10 by power management chip 50 is burning voltage vdd1 and vdd2, is supplied to the outer temperature sensing chip 40 of subtab and radio frequency identification temperature subtab 30 respectively.
Preferably, described radio frequency identification temperature subtab 30 can meet 433MHz frequency range radio-frequency (RF) identification, 900MHz frequency range radio-frequency (RF) identification, the wireless data transfer module of 2.4GHz frequency range REID agreement and the antenna of correspondence according to application scenarios option and installment.
Preferably, described radio frequency identification temperature subtab 30 comprises:
Wireless data transfer module 301, it is connected with one chip microcomputer 302, for being realized the data interaction between one chip microcomputer 302 and sensing data wireless collection equipment 60 by antenna 31, and initiatively can be communicated to sensing data wireless collection equipment 60 emitting electromagnetic wave by antenna 31;
One chip microcomputer 302, it comprises core control circuit 3021, memory circuitry 3022 and sensor interface circuitry 3023, carry out temperature survey for controlling the outer temperature sensing chip 40 pairs of heat-producing devices of subtab and the data recorded are transferred to sensing data wireless collection equipment 60 by wireless data transfer module 301, and the cold junction 11 that sending controling instruction controls temperature sensing chip 303 pairs of thermo-electric generation sheets in subtab carries out temperature survey and the data recorded are transferred to sensing data wireless collection equipment 60 by wireless data transfer module 301; And
Temperature sensing chip 303 in subtab, it is connected with one chip microcomputer 302, for measuring the temperature 11 of cold junction.
In the various embodiments described above, radio frequency identification temperature label provided by the present invention also comprises heat radiator 70, and it is for dispelling the heat to the cold junction 11 of thermo-electric generation sheet 10.
Finally it is to be noted: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a radio frequency identification temperature label, comprising:
Thermo-electric generation sheet (10), it has cold junction (11) and hot junction (12), and described hot junction (12) are for contacting with heat-producing device (20);
Radio frequency identification temperature subtab (30), it is connected with described cold junction (11), for measuring the temperature of described cold junction (11);
The outer temperature sensing chip (40) of subtab, it contacts with described heat-producing device (20), for measuring the temperature of described heat-producing device (20); And
Power management chip (50), its input end connects the voltage output end of described thermo-electric generation sheet (10), the output terminal of power management chip (50) connects described radio frequency identification temperature subtab (30) and the outer temperature sensing chip (40) of described subtab, described power management chip (50) becomes burning voltage for the unstable voltage transitions described thermo-electric generation sheet (10) produced, to power to radio frequency identification temperature subtab (30) and the outer temperature sensing chip (40) of described subtab
Described radio frequency identification temperature subtab (30) comprising:
Wireless data transfer module (301), it is connected with one chip microcomputer (302), for being realized the data interaction between one chip microcomputer and sensing data wireless collection equipment (60) by antenna (31);
One chip microcomputer (302), it comprises core control circuit (3021), memory circuitry (3022) and sensor interface circuitry (3023), temperature survey is carried out to heat-producing device for controlling subtab outer temperature sensing chip and the data recorded are transferred to sensing data wireless collection equipment (60) by wireless data transfer module (301), and temperature sensing chip carries out temperature survey to the cold junction of thermo-electric generation sheet and the data recorded is transferred to sensing data wireless collection equipment (60) by wireless data transfer module (301) in sending controling instruction control subtab, and
Temperature sensing chip (303) in subtab, it is connected with one chip microcomputer (302), for measuring the temperature of cold junction (11).
2. radio frequency identification temperature label as claimed in claim 1, the difference of the temperature of wherein said heat-producing device (20) and the environment temperature residing for it is greater than when setting threshold value, and the temperature recorded based on the outer temperature sensing chip (40) of described subtab determines the temperature of described heat-producing device (20).
3. radio frequency identification temperature label as claimed in claim 1, wherein said wireless data transfer module (301), initiatively can be communicated to sensing data wireless collection equipment (60) emitting electromagnetic wave by antenna (31).
4. radio frequency identification temperature label as claimed in claim 1, the interface signal between the outer temperature sensing chip (40) of wherein said subtab communicates with described sensor interface circuitry (3023) comprises bidirectional linked list clock signal and bi-directional serial data signal.
5. radio frequency identification temperature label as claimed in claim 1, wherein also comprise heat radiator (70), it is for dispelling the heat to described cold junction (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510326080.4A CN104966119B (en) | 2015-06-15 | 2015-06-15 | radio frequency identification temperature label |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510326080.4A CN104966119B (en) | 2015-06-15 | 2015-06-15 | radio frequency identification temperature label |
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| CN104966119A true CN104966119A (en) | 2015-10-07 |
| CN104966119B CN104966119B (en) | 2018-09-11 |
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| CN201510326080.4A Active CN104966119B (en) | 2015-06-15 | 2015-06-15 | radio frequency identification temperature label |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106022402A (en) * | 2016-05-10 | 2016-10-12 | 浙江宏森科技有限公司 | Bracelet type prison personnel positioning monitoring apparatus |
| CN112729574A (en) * | 2021-01-08 | 2021-04-30 | 国网山东省电力公司龙口市供电公司 | Conductor heating automatic monitoring device |
| TWI736474B (en) * | 2019-12-16 | 2021-08-11 | 正美企業股份有限公司 | Radio frequency identification system |
| CN114294856A (en) * | 2021-12-13 | 2022-04-08 | 迈克医疗电子有限公司 | Method, device, medium, equipment and instrument for improving Peltier refrigeration efficiency |
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| JP2010231419A (en) * | 2009-03-26 | 2010-10-14 | Kobe Steel Ltd | High-temperature resistant rfid tag |
| CN201927070U (en) * | 2010-12-24 | 2011-08-10 | 深圳市远望谷信息技术股份有限公司 | Semi-active RFID e-tag with temperature sensor |
| CN102661803A (en) * | 2012-04-19 | 2012-09-12 | 北京昆仑海岸传感技术有限公司 | Low power consumption wireless active temperature label |
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2015
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010231419A (en) * | 2009-03-26 | 2010-10-14 | Kobe Steel Ltd | High-temperature resistant rfid tag |
| CN201927070U (en) * | 2010-12-24 | 2011-08-10 | 深圳市远望谷信息技术股份有限公司 | Semi-active RFID e-tag with temperature sensor |
| CN102661803A (en) * | 2012-04-19 | 2012-09-12 | 北京昆仑海岸传感技术有限公司 | Low power consumption wireless active temperature label |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106022402A (en) * | 2016-05-10 | 2016-10-12 | 浙江宏森科技有限公司 | Bracelet type prison personnel positioning monitoring apparatus |
| TWI736474B (en) * | 2019-12-16 | 2021-08-11 | 正美企業股份有限公司 | Radio frequency identification system |
| CN112729574A (en) * | 2021-01-08 | 2021-04-30 | 国网山东省电力公司龙口市供电公司 | Conductor heating automatic monitoring device |
| CN114294856A (en) * | 2021-12-13 | 2022-04-08 | 迈克医疗电子有限公司 | Method, device, medium, equipment and instrument for improving Peltier refrigeration efficiency |
| CN114294856B (en) * | 2021-12-13 | 2023-08-25 | 迈克医疗电子有限公司 | Method, device, medium, equipment and instrument for improving Peltier refrigeration efficiency |
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| CN104966119B (en) | 2018-09-11 |
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