CN204229433U - A kind of hyperchannel rfid interrogator and RFID recognition system - Google Patents
A kind of hyperchannel rfid interrogator and RFID recognition system Download PDFInfo
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- CN204229433U CN204229433U CN201420701177.XU CN201420701177U CN204229433U CN 204229433 U CN204229433 U CN 204229433U CN 201420701177 U CN201420701177 U CN 201420701177U CN 204229433 U CN204229433 U CN 204229433U
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Abstract
The utility model discloses a kind of hyperchannel rfid interrogator and RFID recognition system, hyperchannel rfid interrogator comprises single-chip microcomputer; RFID radio-frequency module, RFID radio-frequency module is connected with single-chip microcomputer; First multiple signals switch chip, and the first multiple signals switch the radiofrequency signal end of chip and are connected with the radiofrequency signal end of RFID radio-frequency module, and the first multiple signals switch the first control input end of chip and are connected with the first control output end of RFID radio-frequency module; Second multiple signals switch chip, the radiofrequency signal end that second multiple signals switch chip is connected with the radiofrequency signal branch end that the first multiple signals switch chip, and the second multiple signals switch the second control input end of chip and are connected with the second control output end of single-chip microcomputer; Antenna, the radiofrequency signal branch end that antenna and the second multiple signals switch chip is connected.By the way, the utility model can achieve a hyperchannel rfid interrogator and controls multiple antenna.
Description
Technical field
The utility model relates to radio frequency processing technical field, particularly relates to a kind of hyperchannel rfid interrogator and RFID recognition system.
Background technology
Radio-frequency (RF) identification (RFID) a kind of reads and writes related data, without the need to setting up the wireless communication technology of machinery or optical contact between recognition system and specific objective by radio signals identification specific objective.Its ultimate principle is the transport property utilizing radiofrequency signal and Space Coupling (inductance or electromagnetic coupled) or radar reflection, realizes the automatic identification to being identified object.
RFID recognition system generally includes the rfid interrogator and electronic tag that are integrated with antenna.Rfid interrogator carries out radio communication by antenna and RFID, can realize the reading to tag recognition code and internal storage data or write operation.Rfid interrogator includes RFID radio-frequency module (transmitter and receiver), control module and antenna.The space (contactless) realizing radiofrequency signal by coupling element between electronic tag with RFID reader is coupled, in coupling channel, according to sequential relationship, the transmission of realization, the exchange of data.
REID has been widely applied among different industries, and such as: electronic tag is attached to an automobile just aborning, this car progress on a production line just can be followed the trail of by manufacturer; Electronic tag also can invest on livestock and pet, facilitates the identification to livestock and pet.
Inventor of the present utility model finds in studying for a long period of time: in existing technology, a read write line equipment can only connect 1 antenna, even if split type rfid interrogator, also 4 external antennas can only be connected at most, thus when the more antenna of needs goes to carry out reading electronic tag time, just must increase several rfid interrogators more, thus add the cost of development of user, and add the difficulty of exploitation.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of hyperchannel rfid interrogator and RFID recognition system, achieves a hyperchannel rfid interrogator and controls multiple antenna, decrease the cost of project application, and reduce the development difficulty of system.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of hyperchannel rfid interrogator, comprise single-chip microcomputer, described single-chip microcomputer comprises control output end; RFID radio-frequency module, described RFID radio-frequency module is connected with described single-chip microcomputer; First multiple signals switch chip, the radiofrequency signal end that described first multiple signals switch chip is connected with the radiofrequency signal end of described RFID radio-frequency module, and the control input end that described first multiple signals switch chip is connected with the control output end of described RFID radio-frequency module; Second multiple signals switch chip, the radiofrequency signal end that described second multiple signals switch chip is connected with the radiofrequency signal branch end that described first multiple signals switch chip, and the control input end that described second multiple signals switch chip is connected with the control output end of described single-chip microcomputer; Antenna, the radiofrequency signal branch end that described antenna switches chip with described second multiple signals is connected.
Wherein, it is four road signal switching chips that described first multiple signals switch chip, and the control input end that the control output end of described RFID radio-frequency module and the first multiple signals switch chip is two I/O ends; It is eight road signal switching chips that described second multiple signals switch chip, and the control input end that the control output end of described single-chip microcomputer and the second multiple signals switch chip is three I/O ends.
Wherein, the quantity of described eight road signal switching chips is four, and a radiofrequency signal branch end of described four road signal switching chips connects the radiofrequency signal end of eight road signal switching chips; The quantity of described antenna is 32, and a radiofrequency signal branch end of described eight road signal switching chips connects an antenna.
Wherein, described hyperchannel rfid interrogator also comprises Serial Port Line; Described Serial Port Line connects the serial ports of RFID radio-frequency module and the serial ports of single-chip microcomputer respectively.
For solving the problems of the technologies described above, another technical scheme that the utility model adopts is: provide a kind of RFID recognition system, comprise processor, hyperchannel rfid interrogator and electronic tag; Described hyperchannel rfid interrogator comprises: described single-chip microcomputer comprises control output end; RFID radio-frequency module, described RFID radio-frequency module is connected with described single-chip microcomputer; First multiple signals switch chip, the radiofrequency signal end that described first multiple signals switch chip is connected with the radiofrequency signal end of described RFID radio-frequency module, and the control input end that described first multiple signals switch chip is connected with the control output end of described RFID radio-frequency module; Second multiple signals switch chip, the radiofrequency signal end that described second multiple signals switch chip is connected with the radiofrequency signal branch end that described first multiple signals switch chip, and the control input end that described second multiple signals switch chip is connected with the control output end of described single-chip microcomputer; Antenna, the radiofrequency signal branch end that described antenna switches chip with described second multiple signals is connected; Described processor is connected with described single-chip microcomputer, and described electronic tag is arranged on detected material.
Wherein, it is four road signal switching chips that described first multiple signals switch chip, and the control input end that the control output end of described RFID radio-frequency module and the first multiple signals switch chip is two I/O ends; It is eight road signal switching chips that described second multiple signals switch chip, and the control input end that the control output end of described single-chip microcomputer and the second multiple signals switch chip is three I/O ends.
Wherein, the quantity of described eight road signal switching chips is four, and a radiofrequency signal branch end of described four road signal switching chips connects the radiofrequency signal end of eight road signal switching chips; The quantity of described antenna is 32, and a radiofrequency signal branch end of described eight road signal switching chips connects an antenna.
Wherein, described hyperchannel rfid interrogator also comprises Serial Port Line; Described Serial Port Line connects the serial ports of RFID radio-frequency module and the serial ports of single-chip microcomputer respectively.
Wherein, described RFID recognition system comprises display; Described display is connected with described processor.
Wherein, the serial ports end of described single-chip microcomputer is connected with the serial ports end of described processor.
The beneficial effects of the utility model are: the situation being different from prior art, the utility model switches chip by being connected in series the first multiple signals at RFID radio-frequency module, switch on chip at the first multiple signals and be connected in series the second multiple signals switching chip, extensive radio frequency signaling interface greatly, thus make RFID radio-frequency module can carry more multiple antennas, the quantity of antenna in expansion hyperchannel rfid interrogator, achieve a hyperchannel rfid interrogator to control multiple antenna, without the need to controlling multiple antenna configuration multiple stage rfid interrogator at needs, decrease the cost of project application, and reduce the development difficulty of system.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model hyperchannel rfid interrogator embodiment;
Fig. 2 is the schematic diagram that in the utility model hyperchannel rfid interrogator embodiment, the first multiple signals switching chip is separated with RFID radio-frequency module;
Fig. 3 is the schematic diagram that in the utility model hyperchannel rfid interrogator embodiment, the first multiple signals switching chip and RFID radio-frequency module combine;
Fig. 4 is the structural representation of the utility model RFID recognition system.
Embodiment
For the ease of understanding the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in detail.It should be noted that, when element is stated " being fixed on " another element, it can directly on another element or can there is one or more element placed in the middle therebetween.When an element is stated " connection " another element, it can be directly connected to another element or can there is one or more element placed in the middle therebetween.The term " vertical " that this instructions uses, " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology of using of this instructions and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in instructions of the present utility model in this instructions just in order to describe concrete embodiment is not for limiting the utility model.The term "and/or" that this instructions uses comprises arbitrary and all combinations of one or more relevant Listed Items.
Below in conjunction with drawings and embodiments, the utility model is described in detail.
Refer to Fig. 1 and Fig. 2, hyperchannel rfid interrogator 20 comprises single-chip microcomputer 21, RFID radio-frequency module 22, first multiple signals switching chip 23, second multiple signals switch chip 24 and antenna 25.RFID radio-frequency module 22 is for transmitting and receiving radiofrequency signal, it is a kind of chip with multiplexer channel that multiple signals switch chip, wherein any road can be selected to carry out the chip communicated, and briefly, multiple signals switch the suitable single pole multiple throw of chip.
Single-chip microcomputer 21 comprises control output end 211.Single-chip microcomputer 21 is connected with RFID radio-frequency module 22, and single-chip microcomputer 21 is for control RFID radio-frequency module 22.First multiple signals switch the radiofrequency signal end of chip 23 and are connected with the radiofrequency signal end of RFID radio-frequency module 22, first multiple signals switch the control input end 221 of chip 22 and are connected with the control output end 231 of RFID radio-frequency module 23, the control input end 221 that first multiple signals switch chip 22 exports control signal to the control output end 231 of RFID radio-frequency module 23, switches chip 22 be switched on corresponding passage to make the first multiple signals.The radiofrequency signal end that second multiple signals switch chip 24 is connected with the radiofrequency signal branch end that the first multiple signals switch chip 23.Second multiple signals switch the control input end 241 of chip 24 and are connected with the control output end 211 of single-chip microcomputer, the control input end 241 that the control output end 211 of single-chip microcomputer switches chip 24 to the second multiple signals exports control signal, switches chip 24 be switched on corresponding passage to make the second multiple signals.The radiofrequency signal branch end that antenna 25 and the second multiple signals switch chip 24 is connected.Hyperchannel rfid interrogator switches chip 23 by mounting the first multiple signals at RFID radio-frequency module 22, switch chip 23 at the first multiple signals and mount the second multiple signals switching chip 24, the more multiple antennas 25 of the radiofrequency signal interface of extended antenna 25, and then carry greatly.
It is four road signal switching chips that first multiple signals switch chip 22, four road signal switching chips have a radiofrequency signal end and four radiofrequency signal branch end, wherein, one radiofrequency signal end can any one be communicated with four radiofrequency signal branch end, forms passage.It is eight road signal switching chips that second multiple signals switch chip 25, eight road signal switching chips have a radiofrequency signal end and eight radiofrequency signal branch end, wherein, one radiofrequency signal end can any one be communicated with eight radiofrequency signal branch end, forms passage.What deserves to be explained is: multiple signals switch core simultaneously only to use a-road-through road, avoid occur because of multiple antenna send signal simultaneously time, the signal disturbing caused, and polling mode can be adopted to inquire control to the use of passage.In the utility model embodiment, the quantity of eight road signal switching chips is four, a radiofrequency signal branch end of the first multiple signals switching chip 23 connects the radiofrequency signal end of eight road signal switching chips, the quantity of antenna 25 is 32, the radiofrequency signal branch end that second multiple signals switch chip 25 connects an antenna 25, different antennae 25 is applied in disparity items, has expanded the applicability that more disparity items is different to antenna amount.
The control input end that first multiple signals switch chip is two I/O ends, the control output end of RFID radio-frequency module is two I/O ends, two I/O that two I/O ends and first multiple signals of RFID radio-frequency module switch chip 23 hold parallel join, I/O end exports high level and low level, two I/O ends can go out conveying four groups of high level and low level combination, by the combination of one group of low and high level two value, which is communicated with four radiofrequency signal branch end can to determine to switch the radiofrequency signal end of chip 23 by the first multiple signals.Same, the control input end 241 that the control output end of unit sheet and the second multiple signals switch chip is three I/O ends, three I/O ends of single-chip microcomputer switch the parallel connection of chip 24 with the second multiple signals, by the combination of one group of low and high level three value, which is communicated with four radiofrequency signal branch end can to determine to switch the radiofrequency signal end of chip 24 by the second multiple signals.It should be noted that: three I/O ends of all second multiple signals switching chips 24 are all held row level with both hands and are connected with three I/O of single-chip microcomputer 21.
Further, hyperchannel rfid interrogator 20 also comprises Serial Port Line 26.Serial Port Line 26 connects the serial ports of RFID radio-frequency module 22 and the serial ports of single-chip microcomputer 21 respectively.
It should be noted that: the first multiple signals switch chip 23 can be separated setting with RFID radio-frequency module 22, also the first multiple signals can be switched chip 23 and directly be integrated in RFID radio-frequency module 22, as shown in Figure 3.
In the utility model embodiment, chip is switched by being connected in series the first multiple signals at RFID radio-frequency module, switch on chip at the first multiple signals and be connected in series the second multiple signals switching chip, extensive radio frequency signaling interface greatly, thus make RFID radio-frequency module can carry more multiple antennas, the quantity of antenna in expansion hyperchannel rfid interrogator, achieve a hyperchannel rfid interrogator to control multiple antenna, without the need to controlling multiple antenna configuration multiple stage rfid interrogator at needs, decrease the cost of project application, and reduce the development difficulty of system.
The utility model also provides RFID recognition system embodiment.Refer to Fig. 4, RFID recognition system 30 comprises processor 301, hyperchannel rfid interrogator 302 and electronic tag 303.
The concrete structure of hyperchannel rfid interrogator 302 can consult above-mentioned hyperchannel rfid interrogator embodiment, repeats no longer one by one herein.
Processor 301 is connected with the single-chip microcomputer in hyperchannel rfid interrogator 302, concrete, processor 301 and single-chip microcomputer can be connected in series to be connected, then the serial ports of processor 301 is connected with the serial ports of single-chip microcomputer, processor 301 and single-chip microcomputer can be that network is connected, then the network interface of processor 301 is connected with the network interface of single-chip microcomputer.
Electronic tag 303 arranges on detected material, signal expansion is also externally sent by the antenna of self by hyperchannel rfid interrogator 302, when searching electronic tag 303, active electron label, after electronic tag is activated, data in electronic tag by antenna passback hyperchannel rfid interrogator 302, and hyperchannel rfid interrogator 302 again by data back to processor 301, processed by processor 301.
Further, RFID recognition system 30 also comprises display 304, and display 304 is connected with processor 301.。What deserves to be explained is: display 304 and processor 301 fit together usually, lead to and be host computer.
In the utility model embodiment, chip is switched by being connected in series the first multiple signals at RFID radio-frequency module, switch on chip at the first multiple signals and be connected in series the second multiple signals switching chip, extensive radio frequency signaling interface greatly, thus make RFID radio-frequency module can carry more multiple antennas, the quantity of antenna in expansion hyperchannel rfid interrogator, realize a hyperchannel rfid interrogator to control multiple antenna, without the need to controlling multiple antenna configuration multiple stage rfid interrogator, decrease the cost of project application, and reduce the development difficulty of system.
It should be noted that, preferably embodiment of the present utility model is given in instructions of the present utility model and accompanying drawing thereof, but, the utility model can be realized by many different forms, be not limited to the embodiment described by this instructions, these embodiments not as the extra restriction to the utility model content, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.Further, above-mentioned each technical characteristic continues combination mutually, is formed not at above-named various embodiment, is all considered as the scope that the utility model instructions is recorded; Further, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (10)
1. a hyperchannel rfid interrogator, is characterized in that, comprising:
Single-chip microcomputer, described single-chip microcomputer comprises control output end;
RFID radio-frequency module, described RFID radio-frequency module is connected with described single-chip microcomputer;
First multiple signals switch chip, the radiofrequency signal end that described first multiple signals switch chip is connected with the radiofrequency signal end of described RFID radio-frequency module, and the control input end that described first multiple signals switch chip is connected with the control output end of described RFID radio-frequency module;
Second multiple signals switch chip, the radiofrequency signal end that described second multiple signals switch chip is connected with the radiofrequency signal branch end that described first multiple signals switch chip, and the control input end that described second multiple signals switch chip is connected with the control output end of described single-chip microcomputer;
Antenna, the radiofrequency signal branch end that described antenna switches chip with described second multiple signals is connected.
2. hyperchannel rfid interrogator according to claim 1, is characterized in that,
It is four road signal switching chips that described first multiple signals switch chip, and the control input end that the control output end of described RFID radio-frequency module and the first multiple signals switch chip is two I/O ends;
It is eight road signal switching chips that described second multiple signals switch chip, and the control input end that the control output end of described single-chip microcomputer and the second multiple signals switch chip is three I/O ends.
3. hyperchannel rfid interrogator according to claim 2, is characterized in that,
The quantity of described eight road signal switching chips is four, and a radiofrequency signal branch end of described four road signal switching chips connects the radiofrequency signal end of eight road signal switching chips;
The quantity of described antenna is 32, and a radiofrequency signal branch end of described eight road signal switching chips connects an antenna.
4. hyperchannel rfid interrogator according to claim 1, is characterized in that, described hyperchannel rfid interrogator also comprises Serial Port Line;
Described Serial Port Line connects the serial ports of RFID radio-frequency module and the serial ports of single-chip microcomputer respectively.
5. a RFID recognition system, is characterized in that, described RFID recognition system comprises processor, hyperchannel rfid interrogator and electronic tag;
Described hyperchannel rfid interrogator comprises:
Single-chip microcomputer, described single-chip microcomputer comprises control output end;
RFID radio-frequency module, described RFID radio-frequency module is connected with described single-chip microcomputer;
First multiple signals switch chip, the radiofrequency signal end that described first multiple signals switch chip is connected with the radiofrequency signal end of described RFID radio-frequency module, and the control input end that described first multiple signals switch chip is connected with the control output end of described RFID radio-frequency module;
Second multiple signals switch chip, the radiofrequency signal end that described second multiple signals switch chip is connected with the radiofrequency signal branch end that described first multiple signals switch chip, and the control input end that described second multiple signals switch chip is connected with the control output end of described single-chip microcomputer;
Antenna, the radiofrequency signal branch end that described antenna switches chip with described second multiple signals is connected;
Described processor is connected with described single-chip microcomputer, and described electronic tag is arranged on detected material.
6. RFID recognition system according to claim 5, is characterized in that,
It is four road signal switching chips that described first multiple signals switch chip, and the control input end that the control output end of described RFID radio-frequency module and the first multiple signals switch chip is two I/O ends;
It is eight road signal switching chips that described second multiple signals switch chip, and the control input end that the control output end of described single-chip microcomputer and the second multiple signals switch chip is three I/O ends.
7. RFID recognition system according to claim 6, is characterized in that,
The quantity of described eight road signal switching chips is four, and a radiofrequency signal branch end of described four road signal switching chips connects the radiofrequency signal end of eight road signal switching chips;
The quantity of described antenna is 32, and a radiofrequency signal branch end of described eight road signal switching chips connects an antenna.
8. RFID recognition system according to claim 5, is characterized in that,
Described hyperchannel rfid interrogator also comprises Serial Port Line;
Described Serial Port Line connects the serial ports of RFID radio-frequency module and the serial ports of single-chip microcomputer respectively.
9. RFID recognition system according to claim 5, is characterized in that, described RFID recognition system comprises display;
Described display is connected with described processor.
10. RFID recognition system according to claim 5, is characterized in that, the serial ports end of described single-chip microcomputer is connected with the serial ports end of described processor.
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| CN201420701177.XU CN204229433U (en) | 2014-11-20 | 2014-11-20 | A kind of hyperchannel rfid interrogator and RFID recognition system |
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| CN201420701177.XU CN204229433U (en) | 2014-11-20 | 2014-11-20 | A kind of hyperchannel rfid interrogator and RFID recognition system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106295733A (en) * | 2015-06-10 | 2017-01-04 | 深圳市方卡科技股份有限公司 | Label detection method, Apparatus and system |
| CN108280383A (en) * | 2018-04-25 | 2018-07-13 | 广州周立功单片机科技有限公司 | Multiple antennas RFID circuit |
| CN108376230A (en) * | 2018-04-25 | 2018-08-07 | 广州周立功单片机科技有限公司 | Multiple antennas RFID circuit |
| CN108647545A (en) * | 2018-06-12 | 2018-10-12 | 深圳市乐思创新科技有限公司 | Multiple antennas time-sharing multiplex rf read-write device and its reading/writing method |
| CN109102040A (en) * | 2018-06-29 | 2018-12-28 | 深圳市捷通科技有限公司 | Fixed capital management method and device thereof, fixed assets management system |
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2014
- 2014-11-20 CN CN201420701177.XU patent/CN204229433U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106295733A (en) * | 2015-06-10 | 2017-01-04 | 深圳市方卡科技股份有限公司 | Label detection method, Apparatus and system |
| CN108280383A (en) * | 2018-04-25 | 2018-07-13 | 广州周立功单片机科技有限公司 | Multiple antennas RFID circuit |
| CN108376230A (en) * | 2018-04-25 | 2018-08-07 | 广州周立功单片机科技有限公司 | Multiple antennas RFID circuit |
| CN108647545A (en) * | 2018-06-12 | 2018-10-12 | 深圳市乐思创新科技有限公司 | Multiple antennas time-sharing multiplex rf read-write device and its reading/writing method |
| CN109102040A (en) * | 2018-06-29 | 2018-12-28 | 深圳市捷通科技有限公司 | Fixed capital management method and device thereof, fixed assets management system |
| CN109102040B (en) * | 2018-06-29 | 2021-08-06 | 深圳市捷通科技有限公司 | Fixed asset management method and device and fixed asset management system |
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