CN102222255A - Semi-passive radio frequency identification temperature measurement tag combined with 2.4GHz wireless module - Google Patents
Semi-passive radio frequency identification temperature measurement tag combined with 2.4GHz wireless module Download PDFInfo
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- CN102222255A CN102222255A CN2011101701857A CN201110170185A CN102222255A CN 102222255 A CN102222255 A CN 102222255A CN 2011101701857 A CN2011101701857 A CN 2011101701857A CN 201110170185 A CN201110170185 A CN 201110170185A CN 102222255 A CN102222255 A CN 102222255A
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Abstract
The invention discloses a semi-passive radio frequency identification temperature measurement tag combined with a 2.4GHz wireless module. The tag comprises a microcontroller, a temperature sensor, a real-time clock unit, a radio frequency identification double-interface chip, an antenna, a 2.4 GHz wireless module, a power supply module, a key and an indication lamp. The temperature sensor, the real-time clock unit, the radio frequency identification double-interface chip, the 2.4 GHz wireless module, the power supply module, the key and the indication lamp are respectively connected with the microcontroller; and the antenna is connected with the radio frequency identification double-interface chip. The semi-passive radio frequency identification temperature measurement tag combined with the 2.4GHz wireless module can transmit the data in multiple data transmission manners and is convenient to use.
Description
Technical field
The present invention relates to a kind of label that has temperature acquisition, processing and writing function concurrently, particularly, this label comprises two kinds of wireless communication interfaces: passive ultra-high frequency radio-frequency (RF) identification and active 2.4GHz wave point.
Background technology
Cold Chain Logistics is made a general reference the refrigerating based food in production, storage transportation, sale, is in all the time under the low temperature environment of regulation to consuming in each preceding link, to guarantee food quality, reduces a systems engineering of food loss.It is to be the low temperature logistics process of means based on refrigerating process, with the Refrigeration Technique along with the development of progress of science and technology, Refrigeration Technique is set up.
In the Cold Chain Logistics process, need to utilize temperature monitoring in real time and early warning mechanism to reduce the rotten loss of product, estimate and infer the unnecessary loss that causes to reduce.In the prior art, adopt the temperature in the moisture recorder record Cold Chain Logistics process, in the time will obtaining temperature data, moisture recorder is connected with computing machine, utilize computing machine in moisture recorder, to read useful data by USB interface.The shortcoming of prior art is: the first, and the volume of moisture recorder is bigger, uses inconvenient; The second, real-time is poor, can not transmit temperature data in real time; The 3rd, data transfer mode is single.
Radio-frequency (RF) identification (RFID) technology is a kind of contactless automatic identification technology, by the automatic recognition objective object of radiofrequency signal and obtain related data.When the article that have electronic tag passed through specific data reader/writer, label was activated by read write line and by radiowave the data of carrying in the label is sent to read write line and data handling system, finishes data automatic collecting work.Along with the fast development of REID, REID has been widely used in logistics field, in the Cold Chain Logistics industry, has adopted REID that temperature is carried out radio tracking.Be used for the electronic tag of Cold Chain Logistics integrated temperature sensor, obtain temperature data in real time by temperature sensor, and temperature data deposited in the storer of electronic tag.The user can read useful datas such as temperature in the electronic tag, time with reader, thereby can the monitoring product transportation, the temperature variation in the process such as dispensing, helps the confirmation of responsibility of quality accident.
Summary of the invention
The object of the present invention is to provide a kind of half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module, available several data transmission mode real-time transmission data, and easy to use.
To achieve the above object, the invention provides a kind of half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module, it is characterized in that, comprise microcontroller, temperature sensor, real-time clock unit, the two interfaces of radio-frequency (RF) identification chip, antenna, 2.4GHz wireless module, power module, button and pilot lamp; Described temperature sensor, real-time clock unit, the two interfaces of radio-frequency (RF) identification chip, 2.4GHz wireless module, power module, button are connected with described microcontroller respectively with pilot lamp; Described antenna is connected with the two interfaces of described radio-frequency (RF) identification chip;
Half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module of the present invention can adopt button and pilot lamp, the two interface chips of radio-frequency (RF) identification and three kinds of modes of 2.4GHz wireless module to obtain ambient temperature situations, two interface chips of radio-frequency (RF) identification and 2.4GHz wireless module can obtain temperature data in real time, during use, this half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module is attached on the detected product gets final product, very easy to use;
Of the present inventionly use transparent channel in conjunction with 2.4GHz wireless module in the half passive radio frequency identification thermometric label of 2.4GHz wireless module, the user can custom protocol, makes that the application of radio-frequency (RF) identification thermometric label is more flexible, and software compatibility is also better;
Transmission mode in conjunction with 2.4GHz wireless module in the half passive radio frequency identification thermometric label of 2.4GHz wireless module of the present invention comprises analog transmission mode and digital transmission mode, digital transmission mode message transmission rate height, strong interference immunity;
Half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module of the present invention can obtain temperature conditions roughly by button and pilot lamp, makes that radio-frequency (RF) identification thermometric tag operational is more convenient, visuality is stronger.
Above-mentioned half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module, wherein, described button comprises and starts/stop key and the state button that described pilot lamp comprises status indicator lamp and overtemperature alarm pilot lamp.
Above-mentioned half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module, wherein, the two interfaces of described radio-frequency (RF) identification chip is the two interfaces of super high frequency radio frequency identification chips, its operating frequency range is 860MHz～960MHz, and the wireless air port of the two interfaces of described radio-frequency (RF) identification chip adopts ISO 18000-6C agreement.
Above-mentioned half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module, wherein, the two interfaces of described radio-frequency (RF) identification chip adopts passive read mode of passive radio frequency identification and radio frequency identification read-write device to carry out data communication, and described 2.4GHz wireless module carries out data communication with active mode and read-write equipment under the situation of described power module power supply;
Half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module of the present invention adopts the two interfaces of super high frequency radio frequency identification chip, frequency of operation is 860MHz～960MHz, 2.4GHz the frequency of operation of wireless module is 2400MHz～2483.5MHz, two kinds of communication modes can both increase reading/writing distance effectively, make the usable range of radio-frequency (RF) identification thermometric label more extensive.
Above-mentioned half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module, wherein, described microcontroller, temperature sensor, real-time clock unit, 2.4GHz wireless module, button and pilot lamp are powered by described power module.
Description of drawings
Half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module of the present invention is provided by following embodiment and accompanying drawing.
Fig. 1 is the structural representation of the present invention in conjunction with half passive radio frequency identification thermometric label of 2.4GHz wireless module.
Fig. 2 is the circuit diagram of the present invention in conjunction with half passive radio frequency identification thermometric label of 2.4GHz wireless module.
Embodiment
Below with reference to Fig. 1～Fig. 2 half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module of the present invention is described in further detail.
Referring to Fig. 1 and Fig. 2, the half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module of the embodiment of the invention comprises microcontroller 101, temperature sensor 102, real-time clock unit 103, the two interfaces of radio-frequency (RF) identification chip 104, antenna 105,2.4GHz wireless module 106, power module 107, button 108 and pilot lamp 109;
Described temperature sensor 102, real-time clock unit 103, the two interfaces of radio-frequency (RF) identification chip 104,2.4GHz wireless module 106, power module 107, button 108 are connected with described microcontroller 101 respectively with pilot lamp 109;
Described antenna 105 is connected with the two interfaces of described radio-frequency (RF) identification chip 104.
Described microcontroller 101 adopts the mixed-signal processor of 16 super low-power consumptions, described microcontroller 101 is control hinges of described half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module, controls the operation of described temperature sensor 102, real-time clock unit 103, the two interfaces of radio-frequency (RF) identification chip 104,2.4GHz wireless module 106, power module 107, button 108 and pilot lamp 109.
Described temperature sensor 102 is used to gather ambient temperature data, in the present embodiment, described temperature sensor 102 adopts low-power consumption linear active thermistor integrated circuit, it is analog temperature sensor, with temperature transition is aanalogvoltage, and the temperature measurement range of described temperature sensor 102 is-40～+ 125 ℃.
Described real-time clock unit 103 is used for the time of determining, for the thermometric sampled point provides correct timing node, described real-time clock unit 103 can adopt the inner integrated real-time clock of microcontroller.
The two interfaces of described radio-frequency (RF) identification chip 104 carries out data communication by wireless air port and external radio frequency identification read-write equipment, be connected with described microcontroller 101 by serial line interface, in the present embodiment, the wireless air port of the two interfaces of described radio-frequency (RF) identification chip 104 adopts ISO 18000-6C agreement; The two interfaces of described radio-frequency (RF) identification chip 104 adopts the two interfaces of super high frequency radio frequency identification chip, its operating frequency range is 860MHz～960MHz, the two interfaces of super high frequency radio frequency identification chip can be positioned at the far-field region of the radiation field of aerial of radio frequency identification read-write device, reads and writes at a distance;
The two interfaces of described radio-frequency (RF) identification chip 104 adopts passive read mode of passive radio frequency identification and external radio frequency identification read-write equipment to carry out data communication, and itself and external radio frequency identification read-write equipment need not powered battery when carrying out data communication;
Among Fig. 2, first pin one 041 of the two interfaces of described radio-frequency (RF) identification chip 104 is used to be connected described antenna 105 with second pin one 042.
Described 2.4GHz wireless module 106 carries out data communication by wireless air port and exterior read-write device, is connected with described microcontroller 101 by serial line interface, but the wireless air port custom protocol of described 2.4GHz wireless module 106; Described 2.4GHz wireless module 106 carries out data communication with active mode and read-write equipment under the situation of described power module power supply;
2.4GHz wireless technology has characteristics such as transfer rate height, protocol definition is flexible, volume is little, so-called 2.4GHz refers to a working frequency range, 2.4GHz ISM (Industry Science Medicine) is the radio band that the whole world discloses general use, working under the 2.4GHz frequency range to obtain bigger usable range and stronger antijamming capability, and transmission range can reach 100 meters.
The operation of described microcontroller 101, temperature sensor 102, real-time clock unit 103,2.4GHz wireless module 106, button 108 and pilot lamp 109 relies on described power module 107 that energy is provided;
When described power module 107 has electricity, the two interfaces of described radio-frequency (RF) identification chip 104 uses as active electronic label, rely on described power module 107 powered operations, when the electric energy of described power module 107 had exhausted, the two interfaces of described radio-frequency (RF) identification chip 104 used as passive electronic label.
Described button 108 comprises and starts/stop key 1081 and state button 1082 (i.e. two mechanical keys), described startup/stop key 1081 be used to start described in conjunction with the 2.4GHz wireless module the operation of half passive radio frequency identification thermometric label or make operating described half passive radio frequency identification thermometric label out of service in conjunction with the 2.4GHz wireless module, whether duty and environment temperature that described state button 1082 is used to inquire about the thermometric label exceed allowed band; Described pilot lamp 109 comprises status indicator lamp 1091 and overtemperature alarm pilot lamp 1092, and described status indicator lamp 1091 is used to show the duty of thermometric label, and described overtemperature alarm pilot lamp 1092 is used for the display environment temperature and whether exceeds allowed band; Press described state button 1082, if this moment, the thermometric label was in running status, described status indicator lamp 1091 is with flashing mode luminous, if this moment, the thermometric label was in holding state, 1091 modes with Chang Liang of described status indicator lamp are luminous, if environment temperature once exceeded allowed band before the button, described overtemperature alarm pilot lamp 1092 can be luminous, if environment temperature had not exceeded allowed band before the button, described overtemperature alarm pilot lamp 1092 can be not luminous;
In the present embodiment, described pilot lamp 109 adopts light emitting diode.
The principle of work in conjunction with half passive radio frequency identification thermometric label of 2.4GHz wireless module of present embodiment is: with described half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module attached on the detected product, the temperature range that detected product allows is set, parameters such as the thermometric time interval, press described button 108 and start the operation of thermometric label, described microcontroller 101 reads the time data in the described real-time clock unit 103 earlier, wake described temperature sensor 102 up according to the time interval that is provided with then, and control described temperature sensor 102 collecting temperature data, at last temperature data is stored in the two interfaces of the described radio-frequency (RF) identification chip 104, in work in the future, carry out data analysis and detection for the monitor staff, after monitor procedure finishes, the monitor staff can obtain data such as temperature and time by three kinds of modes: the one,, whether obtain the situation of overtemperature by pressing described state button 1082 and observing described overtemperature alarm pilot lamp 1092, this mode can not obtain detailed temperature and time data, can only know whether this detected product temperature in transportation exceeds allowed band; The 2nd,, use the radio frequency identification read-write device for reading data, this mode can obtain detailed data; The 3rd,, described 2.4GHz wireless module 106 initiatively sends to receiving terminal with data, perhaps uses 2.4GHz read write line reading of data, and this dual mode can both obtain detailed data, and follow-up data analysis work can successfully be launched.
The half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module of present embodiment can adopt button and pilot lamp, the two interface chips of radio-frequency (RF) identification and three kinds of modes of 2.4GHz wireless module to obtain ambient temperature situations, two interface chips of radio-frequency (RF) identification and 2.4GHz wireless module can obtain temperature data in real time, during use, this half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module is attached on the detected product gets final product, very easy to use;
The half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module of present embodiment adopts the two interfaces of super high frequency radio frequency identification chip, frequency of operation is 860MHz～960MHz, 2.4GHz the frequency of operation of wireless module is 2400MHz～2483.5MHz, two kinds of communication modes can both increase reading/writing distance effectively, make the usable range of radio-frequency (RF) identification thermometric label more extensive;
Present embodiment use transparent channel in conjunction with 2.4GHz wireless module in the half passive radio frequency identification thermometric label of 2.4GHz wireless module, the user can custom protocol, makes that the application of radio-frequency (RF) identification thermometric label is more flexible, software compatibility is also better;
The transmission mode in conjunction with 2.4GHz wireless module in the half passive radio frequency identification thermometric label of 2.4GHz wireless module of present embodiment comprises analog transmission mode and digital transmission mode, digital transmission mode message transmission rate height, strong interference immunity.
The half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module of present embodiment can obtain temperature conditions roughly by button and pilot lamp under the situation without any reader.When only need understanding detected product its temperature in transportation, storage, the user whether surpasses allowed band, and when need not to understand the detailed temperature data, the information that just can obtain to want by button and pilot lamp, only when the user needs detailed temperature data, just need to use reader to come reading of data, make that like this radio-frequency (RF) identification thermometric tag operational is more convenient, visuality is stronger.
Claims (5)
1. half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module, it is characterized in that, comprise microcontroller, temperature sensor, real-time clock unit, the two interfaces of radio-frequency (RF) identification chip, antenna, 2.4GHz wireless module, power module, button and pilot lamp;
Described temperature sensor, real-time clock unit, the two interfaces of radio-frequency (RF) identification chip, 2.4GHz wireless module, power module, button are connected with described microcontroller respectively with pilot lamp;
Described antenna is connected with the two interfaces of described radio-frequency (RF) identification chip.
2. half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module as claimed in claim 1 is characterized in that, described button comprises and start/stop key and the state button that described pilot lamp comprises status indicator lamp and overtemperature alarm pilot lamp.
3. half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module as claimed in claim 1, it is characterized in that, the two interfaces of described radio-frequency (RF) identification chip is the two interfaces of super high frequency radio frequency identification chips, its operating frequency range is 860MHz～960MHz, and the wireless air port of the two interfaces of described radio-frequency (RF) identification chip adopts ISO 18000-6C agreement.
4. half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module as claimed in claim 1, it is characterized in that, the two interfaces of described radio-frequency (RF) identification chip adopts passive read mode of passive radio frequency identification and radio frequency identification read-write device to carry out data communication, and described 2.4GHz wireless module carries out data communication with active mode and read-write equipment under the situation of described power module power supply.
5. half passive radio frequency identification thermometric label in conjunction with the 2.4GHz wireless module as claimed in claim 1, it is characterized in that described microcontroller, temperature sensor, real-time clock unit, 2.4GHz wireless module, button and pilot lamp are powered by described power module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101701857A CN102222255A (en) | 2011-06-21 | 2011-06-21 | Semi-passive radio frequency identification temperature measurement tag combined with 2.4GHz wireless module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101701857A CN102222255A (en) | 2011-06-21 | 2011-06-21 | Semi-passive radio frequency identification temperature measurement tag combined with 2.4GHz wireless module |
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| CN102222255A true CN102222255A (en) | 2011-10-19 |
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Cited By (2)
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| CN103761561A (en) * | 2013-12-23 | 2014-04-30 | 电子科技大学 | Ultrahigh frequency Internet of Things chip compatible with ISO18000-6C standards |
| CN105760925A (en) * | 2014-12-19 | 2016-07-13 | 福建新大陆电脑股份有限公司 | Temperature electronic label capable of recording attribute information and physical time-space information of units |
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| CN202093546U (en) * | 2011-06-21 | 2011-12-28 | 上海华申智能卡应用系统有限公司 | Temperature measurement label of half passive radio frequency identification combined with 2.4GHz wireless module |
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| CN101645141A (en) * | 2009-08-11 | 2010-02-10 | 合肥工大高科信息技术有限责任公司 | Mine integral double-frequency compound electronic tag, portable card reader and signal reading method thereof |
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Application publication date: 20111019 |