CN200950259Y - Radio frequency recognition multi-protocol read-write terminal - Google Patents
Radio frequency recognition multi-protocol read-write terminal Download PDFInfo
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- CN200950259Y CN200950259Y CN 200620097243 CN200620097243U CN200950259Y CN 200950259 Y CN200950259 Y CN 200950259Y CN 200620097243 CN200620097243 CN 200620097243 CN 200620097243 U CN200620097243 U CN 200620097243U CN 200950259 Y CN200950259 Y CN 200950259Y
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Abstract
The utility model discloses a radiation frequency multi-protocol reading and writing terminal, including a wireless interface and a control unit; the control unit includes a MCU unit; the control unit also includes a multi-protocol channel unit communicated with the wireless interface and the MCU unit; the circuit unit of the MCU interface receives the communication instructions of the MCU unit; the physical layer channel units in the multi-protocol channel unit required by the corresponding standards are switched, according to the requirements of the instructions; then the communicating circuit unit of the wireless interface is communicated with the wireless interface; thus the device finishes the reading and writing operation of the RFID tag. The device is compatible with various standards of the existing RFID tag; and the device can support a plurality of tags of different standards; the utility model is easy to manufacture, low in cost and convenient in use.
Description
Technical field
The utility model relates to the radio frequency identification read-write technical field, relates to a kind of read-write terminal that can support multiple RFID tag agreement or standard particularly.
Background technology
RFID (Radio Frequency Identification, radio-frequency (RF) identification) technology is state-of-the-art in the world automatic identification technology, is just to have begun the new technology of rising and being applied rapidly in recent years; It has identification distance, recognition accuracy height, characteristics such as recognition speed is fast, antijamming capability is strong, long service life, penetrable nonmetallic materials, and the utilization scope is extremely wide; RFID is a kind of brand-new ladder of management that realizes that characteristics such as digitizing, information-based attribute to object, state, numbering are gathered automatically, and the identity that can be widely used in aspects such as personnel, animal, article is discerned automatically.
Rfid system is a technology that is used to replace conventional barcode, and it has adopted radio and Radar Technology, and exchanges data is not by the contacting of electric current but by electric field and magnetic field, promptly communicates by letter by wireless mode.Compare with other recognition method, REID can be discerned a plurality of projects that move, thereby application is more extensive, and existing abroad suitable widespread use is listed in one of big important technology project in this century ten; China also classifies the RFID technology as one of Eleventh Five-Year Plan country electronic information technology development six big key areas.
A typical R FID system is made up of three parts:
Label (Tag, i.e. radio-frequency card): be made up of coupling element and chip, label contains built-in aerial, be used for and radio-frequency antenna between communicate.
Read-write terminal: the equipment that reads (in read-write card, can also write) label information.
Antenna: between label and read-write terminal, transmit radiofrequency signal.
Some system also is connected with outer computer (host computer main system) by the RS232 or the RS485 interface of read-write terminal, carries out exchanges data.
Read-write terminal produces induction current by the radiofrequency signal of emitting antenna transmission certain frequency when label enters the emitting antenna perform region, label obtains energy and is activated; Label sends information such as self coding by blocking built-in transmitting antenna; System's receiving antenna receives the carrier signal of sending from label, is sent to read-write terminal through the antenna adjustments device, and read-write terminal carries out the demodulation sign indicating number to the signal that receives and delivers to the backstage main system then and carry out relevant treatment; Main system is judged the legitimacy of this card according to logical operation, makes corresponding processing and control at different settings, sends the action of command signal control executing mechanism.
The standard aspect of existing RFID label, the many and disunity of the tag standards of various countries, for example the international standard in the 13.56MHz frequency range has ISO/IEC 14443 TYPE A, ISO/IEC 14443 TYPEB, ISO/IEC15693, ISO18000-3; In the 860-960MHz frequency range ISO18000-6B, EPCCLASS0, EPC CLASS1 G1, EPC CLASS1 G2, EPC V1.19 are arranged.Large-scale company and industry alliance that simultaneously external some are produced RFID label chip product establish and enforce the standard of own enterprise again, these standards are incompatible, the Tag-it standard of the I-CODE of PHILIP company standard and TEXAS INSTRUMENT company is for example arranged in the 13.56MHz frequency range, IMPINJZUMA, EM etc. are arranged in the 860-960MHz frequency range.And China does not formulate corresponding national standards as yet.
And existing RFID read-write terminal can only be supported the label of or a few various criterion, therefore various agreement just must need miscellaneous RFID read-write terminal, the large-scale manufacturing that this both had been unfavorable for the RFID read-write terminal has also increased the cost and the difficulty of application system.Simultaneously, in face of numerous standards or agreement, the user can feel at a loss as to what to do when selecting rfid system and read-write terminal, be an obstacle to applying of RFID undoubtedly.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective and a kind of radio-frequency (RF) identification multi-protocols read-write terminal is provided.This radio-frequency (RF) identification multi-protocols read-write terminal has solved existing RFID terminal can only support one or a few different tag standards, and can not compatible existing various RFID tag standards, and be unfavorable for making, problems such as cost is big, difficulty height.
Be a kind of radio-frequency (RF) identification multi-protocols read-write terminal of realizing that the purpose of this utility model provides, comprise wave point and control module, control module comprises the MCU unit, described control module also comprises the multi-protocols channel unit, be connected with described wave point and MCU unit, by with MCU interface circuit unit, reception is from the communication instruction of MCU unit, switch to the physical layer channel unit of carrying out in the multi-protocols channel unit that respective standard requires according to the requirement of instruction, by being connected wave point, finish read and write operation then to the RFID label with wave point connecting circuit unit.
Described multi-protocols channel unit comprises the multi-protocols control module, and it judges the communication instruction of MCU unit, automatically switches to according to the requirement of instructing and can carry out the physical layer channel unit that respective standard requires.
Described radio-frequency (RF) identification multi-protocols read-write terminal is a 13.56MHz high band radio frequency identification read-write terminal, perhaps is 860-960MHz hyper band radio frequency identification read-write terminal.
Described 13.56MHz high band multi-protocols channel unit also comprises ISO18000-3 physical layer channel unit, ISO15693 physical layer channel unit, ISO14443TYPE A physical layer channel unit, ISO14443TYPE B physical layer channel unit, Tag-it physical layer channel unit, I-CODE physical layer channel unit.
Described 860-960MHz hyper band multi-protocols channel unit also comprises ISO18000-6B physical layer channel unit, EPC CLASS0 physical layer channel unit, EPC CLASS1 G1 physical layer channel unit, EPC CLASS1 G2 physical layer channel unit, EPC V1.19 physical layer channel unit, IMPINJZUMA physical layer channel unit, EM physical layer channel unit.
Described multi-protocols channel unit also comprise with wave point connecting circuit unit and with MCU unit interface circuit unit.
Described multi-protocols control module is the integrated circuit with intelligence.
Described multi-protocols control module comprise at least one have at a high speed, high capacity EEPROM and at least one high capacity RAM.
The beneficial effects of the utility model are: a kind of radio-frequency (RF) identification multi-protocols read-write terminal of the present utility model, meet the circuit that the physical-layer techniques of multiple existing standard requires and the communications protocol layers embedded software program unit organic assembling of these standards of fast processing by utilization, be implemented in compatible existing various RFID tag standards or agreement on a kind of RFID read-write terminal, it had both helped the large-scale manufacturing of RFID read-write terminal, application system cost and difficulty have been reduced again, make the user use the RFID read-write terminal convenient, thereby the scope of application is more extensive, helps promoting the use of.
Description of drawings
Fig. 1 is a radio-frequency (RF) identification multi-protocols read-write terminal structural representation of the present utility model;
Fig. 2 is a radio-frequency (RF) identification multi-protocols read-write terminal course of work process flow diagram of the present utility model;
Fig. 3 is the utility model multi-protocols control unit circuit figure.
Embodiment
Further describe radio-frequency (RF) identification multi-protocols read-write terminal of the present utility model below in conjunction with accompanying drawing 1 or 2.
The utility model is that preferred embodiment is described with a kind of RFID read-write terminal of 13.56MHz frequency range particularly, but those of ordinary skill in the art can be readily appreciated that, the utility model can be in other frequency ranges, realize on the RFID read-write terminal as the 860-960MHz ultrahigh frequency, description in specific embodiment is not to restriction of the present utility model, just in order to understand the utility model better.
Design philosophy of the present utility model is this two big technology of communications protocol layers multi-protocols control unit circuit of the physical layer channel element circuit that requires by the physical-layer techniques that designs a kind of ISO18000-3 of meeting, ISO15693, ISO14443 TYPE A/TYPE B, multiple standards such as Tag-it, I-CODE on the 13.56MHz frequency range and these standards of fast processing and organically makes up and be implemented in a kind of RFID read-write terminal compatible multistandard or agreement.It had both helped the large-scale manufacturing of RFID read-write terminal, application system cost and difficulty have been reduced again, make the user use the RFID read-write terminal convenient, thereby the scope of application of radio-frequency (RF) identification multi-protocols read-write terminal of the present utility model is more extensive, is convenient to promote the use of.
The RFID read-write terminal of existing 13.56MHz frequency range shows wretched insufficiency on the function of supporting various different RF ID tag standards, generally speaking, a kind of RFID read-write terminal of 13.56MHz frequency range can only be supported the label of or a few various criterion, so, in the face of multiple RFID tag standards just must have multiple corresponding with it different read-write terminals.This situation is all to be serious restriction to the manufacturing of RFID read-write terminal or to applying of RFID.
As shown in Figure 1, radio-frequency (RF) identification multi-protocols read-write terminal of the present utility model comprises two unit of wave point and control module.
Wave point comprises transmitter and receiver, and it produces radio-frequency emission power to start label and energy is provided; Modulate transmitting, be used for sending data to label; Receive also demodulation from the frequency signal of label.
Described control module comprises MCU unit and multi-protocols channel unit, wherein:
MCU (Micro Controller Unit) unit, be multipoint control unit again, claim one chip microcomputer (Single Chip Microcomputer) again, be called for short single-chip microcomputer, be meant appearance and development thereof along with large scale integrated circuit, CPU, RAM, ROM, timing number device and the multiple I/O interface of computing machine are integrated on a slice chip, form the computing machine of chip-scale, it is in the RFID read-write terminal, be used for communicating comprising between each unit of multi-protocols channel unit, and the executive communication instruction; The communication process (MS master-slave principle) of control multi-protocols channel unit and other unit and label; Signal of communication is carried out encoding and decoding, and carry out anti-collision algorithm, the data that will transmit between label and read-write terminal are carried out encryption and decryption, carry out the additional functions such as authentication between label and read-write terminal.
The multi-protocols channel unit, be connected with MCU is unit cascaded with wave point, comprise and wave point connecting circuit unit, with MCU interface circuit unit, also comprise a plurality of physical layer channels unit such as ISO18000-3 Physical layer, ISO15693 Physical layer, ISO14443 TYPE A Physical layer, ISO14443 TYPE B Physical layer, Tag-it Physical layer, I-CODE Physical layer, and the multi-protocols control module.Its by with MCU interface circuit unit, reception is from the communication instruction of MCU unit, requirement according to instruction automatically switches to the physical layer channel unit of carrying out the respective standard requirement, then by being connected wave point with wave point connecting circuit unit, finishes the read and write operation to the RFID label.
Circuit of the present utility model adopts the high integrated technology of integrated level, its by independently, the combination of single IC for both rather than a plurality of separation integrated circuit satisfies the physical-layer techniques requirement of multiple standards, for example meets the physical-layer techniques requirement of ISO18000-3, ISO15693, ISO14443 TYPE A/TYPE B, multiple standards such as Tag-it, I-CODE.Thereby, circuit of the present utility model is by adopting the high integrated technology of integrated level, overcome the RFID read-write terminal radio circuit of 13.56MHz frequency range in the prior art and do not possessed the such defective of ability that the physical-layer techniques that satisfies existing various tag standards or agreement requires.And in the prior art, if the physical-layer techniques that makes RFID read-write terminal radio circuit possess satisfied existing various tag standards or agreement requires this ability, just each radio circuit of supporting different tag standards or agreement respectively must be set in same read-write terminal, like this, to produce the phase mutual interference between each radio circuit and can't operate as normal, and a plurality of radio circuits are set in same read-write terminal certainly will increase cost of products.
Preferably, multi-protocols control module in the utility model is the integrated circuit with intelligence, as shown in Figure 3, it receives the communication instruction from the MCU unit, requirement according to instruction automatically switches to the physical layer channel unit that can carry out the respective standard requirement, then by with the wireless interface circuit unit respectively with rf power amplifier circuit and low noise narrow-band filtering amplifier interfaces, finish the read and write of RFID label operation by 50 Ω microstrip antennas or external antenna at last.
The multi-protocols control module that described multi-protocols channel unit comprises, it judges the communication instruction of MCU unit, automatically switches to according to the requirement of instructing and can carry out the physical layer channel unit that respective standard requires.
The described multi-protocols control module course of work as shown in Figure 2, it comprises the following steps:
Step S1: the multi-protocols control module in the multi-protocols channel unit receives the instruction of MCU unit communication, judges at first whether this instruction is to carry out the instruction of ISO18000-3 tag standards; If then switch to and carry out the physical layer channel unit that the ISO18000-3 respective standard requires, and forward step S7 to; Otherwise continue;
Step S2: judge whether this instruction is to carry out the instruction of ISO15693 tag standards; If then switch to and carry out the physical layer channel unit that the ISO15693 respective standard requires, and forward step S7 to; Otherwise continue;
Step S3: judge whether this instruction is to carry out the instruction of ISO14443A tag standards; If then switch to and carry out the physical layer channel unit that the ISO14443A respective standard requires, and forward step S7 to; Otherwise continue;
Step S4: judge whether this instruction is to carry out the instruction of ISO14443B tag standards; If then switch to and carry out the physical layer channel unit that the ISO14443B respective standard requires, and forward step S7 to; Otherwise continue;
Step S5: judge whether this instruction is to carry out the instruction of TAG-IT tag standards; If then switch to and carry out the physical layer channel unit that the TAG-IT respective standard requires, and forward step S7 to; Otherwise continue;
Step S6: switch to and carry out the physical layer channel unit that the I-CODE respective standard requires, move this communication instruction;
Step S7:, finish read and write operation to the RFID label by being connected wave point with wave point connecting circuit unit.
Multi-protocols control module of the present utility model also can be a module that is embedded in the MCU unit.
Preferably, described multi-protocols control module comprise at least one have at a high speed, high capacity EEPROM (Electrically Erasable Programmable Read-Only Memory, electronics Erarable Programmable Read only Memory) and at least one high capacity RAM (random access memory).It combines itself and the circuit that satisfies the physical layer channel technical requirement of multiple standards together by MCU, to finish the repertoire of radio-frequency (RF) identification multi-protocols read-write terminal jointly efficiently.
One of ordinary skill in the art will appreciate that the multi-protocols channel unit in the present embodiment also can be embedded in the MCU unit,, like this, also can not need creative work just can realize the utility model as the part of MCU unit.
Present embodiment is the detailed description of carrying out in order to understand the utility model better; this is not the qualification of scope that the utility model is protected; therefore, those of ordinary skills do not break away from change that purport of the present utility model makes the utility model without creative work all in protection domain of the present utility model.
Claims (9)
1. radio-frequency (RF) identification multi-protocols read-write terminal, comprise wave point and control module, control module comprises the MCU unit, it is characterized in that, described control module also comprises the multi-protocols channel unit, be connected with described wave point and MCU unit, by with MCU interface circuit unit, reception is from the communication instruction of MCU unit, switch to the physical layer channel unit of carrying out in the multi-protocols channel unit that respective standard requires according to the requirement of instruction, by being connected wave point, finish read and write operation then to RFID tag with wave point connecting circuit unit.
2. radio-frequency (RF) identification multi-protocols read-write terminal according to claim 1, it is characterized in that, described multi-protocols channel unit comprises the multi-protocols control module, and it judges the communication instruction of MCU unit, automatically switches to according to the requirement of instructing and can carry out the physical layer channel unit that respective standard requires.
3. radio-frequency (RF) identification multi-protocols read-write terminal according to claim 2 is characterized in that, described radio-frequency (RF) identification multi-protocols read-write terminal is a 13.56MHz high band radio frequency identification read-write terminal.
4. radio-frequency (RF) identification multi-protocols read-write terminal according to claim 2 is characterized in that, described radio-frequency (RF) identification multi-protocols read-write terminal is a 860-960MHz hyper band radio frequency identification read-write terminal.
5. radio-frequency (RF) identification multi-protocols read-write terminal according to claim 3, it is characterized in that described multi-protocols channel unit also comprises ISO18000-3 physical layer channel unit, ISO15693 physical layer channel unit, ISO14443TYPE A physical layer channel unit, ISO14443TYPE B physical layer channel unit, Tag-it physical layer channel unit, I-CODE physical layer channel unit.
6. radio-frequency (RF) identification multi-protocols read-write terminal according to claim 4, it is characterized in that described multi-protocols channel unit also comprises ISO 18000-6 B physical layer channel unit, EPC CLASS0 physical layer channel unit, EPC CLASS1 G1 physical layer channel unit, EPC CLASS1 G2 physical layer channel unit, EPC V1.19 physical layer channel unit, IMPINJ ZUMA physical layer channel unit, EM physical layer channel unit.
7. according to claim 5 or 6 described radio-frequency (RF) identification multi-protocols read-write terminals, it is characterized in that, described multi-protocols channel unit also comprise with wave point connecting circuit unit and with MCU unit interface circuit unit.
8. radio-frequency (RF) identification multi-protocols read-write terminal according to claim 7 is characterized in that, described multi-protocols control module is the integrated circuit with intelligence.
9. radio-frequency (RF) identification multi-protocols read-write terminal according to claim 8 is characterized in that, described multi-protocols control module comprise at least one have at a high speed, high capacity EEPROM and at least one high capacity RAM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097243 CN200950259Y (en) | 2006-06-16 | 2006-06-16 | Radio frequency recognition multi-protocol read-write terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097243 CN200950259Y (en) | 2006-06-16 | 2006-06-16 | Radio frequency recognition multi-protocol read-write terminal |
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| CN200950259Y true CN200950259Y (en) | 2007-09-19 |
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| CN 200620097243 Expired - Fee Related CN200950259Y (en) | 2006-06-16 | 2006-06-16 | Radio frequency recognition multi-protocol read-write terminal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102339375A (en) * | 2011-10-18 | 2012-02-01 | 山东华翼微电子技术有限责任公司 | Micro noncontact intelligent card reader |
| CN101770561B (en) * | 2008-12-29 | 2012-05-16 | 郑州大学 | Switching method and control switching system thereof of radio frequency identification device (RFID) multi-protocol reader-writer |
| CN103077365A (en) * | 2012-12-28 | 2013-05-01 | 广州中大微电子有限公司 | RFID (radio frequency identification) reader compatible with Type A protocol and Type B protocol |
| CN113157280A (en) * | 2021-03-23 | 2021-07-23 | 深圳市和宏实业股份有限公司 | Upper computer application software compatibility method for multiple read-write operations |
| CN114492485A (en) * | 2021-12-14 | 2022-05-13 | 成都普什信息自动化有限公司 | Multi-protocol reading system, method and terminal of high-frequency high-speed reader-writer |
-
2006
- 2006-06-16 CN CN 200620097243 patent/CN200950259Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770561B (en) * | 2008-12-29 | 2012-05-16 | 郑州大学 | Switching method and control switching system thereof of radio frequency identification device (RFID) multi-protocol reader-writer |
| CN102339375A (en) * | 2011-10-18 | 2012-02-01 | 山东华翼微电子技术有限责任公司 | Micro noncontact intelligent card reader |
| CN103077365A (en) * | 2012-12-28 | 2013-05-01 | 广州中大微电子有限公司 | RFID (radio frequency identification) reader compatible with Type A protocol and Type B protocol |
| CN103077365B (en) * | 2012-12-28 | 2016-04-13 | 广州中大微电子有限公司 | The RFID reader of compatible Type A and Type B agreement |
| CN113157280A (en) * | 2021-03-23 | 2021-07-23 | 深圳市和宏实业股份有限公司 | Upper computer application software compatibility method for multiple read-write operations |
| CN113157280B (en) * | 2021-03-23 | 2023-08-11 | 深圳市和宏实业股份有限公司 | Upper computer application software compatible method for multiple read-write operations |
| CN114492485A (en) * | 2021-12-14 | 2022-05-13 | 成都普什信息自动化有限公司 | Multi-protocol reading system, method and terminal of high-frequency high-speed reader-writer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20110616 |