CN204166546U - Embedded rfid read-write equipment - Google Patents
Embedded rfid read-write equipment Download PDFInfo
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- CN204166546U CN204166546U CN201420501308.XU CN201420501308U CN204166546U CN 204166546 U CN204166546 U CN 204166546U CN 201420501308 U CN201420501308 U CN 201420501308U CN 204166546 U CN204166546 U CN 204166546U
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Abstract
The utility model discloses a kind of embedded RFID read-write equipment, comprise reader and be arranged at the RFID on article, the top of described reader body is provided with swipe the card district and gauge tap, it is that equipment is powered, serial ports is connected with PC that the lower end of described reader body is provided with power interface, also be provided with the BDM mouth that can carry out the upgrading of equipment and the setting to reading writing information, the utility model structure is simple, easy to use, and read-write equipment bottom is designed, be convenient to amendment, be also convenient to some research and development fan simultaneously and learn to use.
Description
Technical field
The utility model relates to embedded Internet of Things electronic applications, particularly a kind of embedded RFID read-write equipment.
Background technology
RFID technique, also known as radio frequency identification, is a kind of communication technology, reads and writes related data by radio signals identification specific objective, and without the need to setting up machinery or optical contact between recognition system and specific objective.There is rapid scanning, the little various shapes of volume, reusable, there is penetrability and without barrier read function.The development of radio RF recognition technology, makes it by the many fields be more and more widely used in social life, but most solidification commodity are main on the market, and product up-gradation intelligence relies on businessman or changes product.Also cannot meet embedded development fan researches and develops study simultaneously.
Summary of the invention
In order to overcome above-mentioned defect, the utility model provides a kind of just user to the change of reading writing information or Learning Studies.
The utility model in order to the technical scheme solving its technical matters and adopt is: a kind of embedded RFID read-write equipment, comprise reader and be arranged at the RFID on article, the top of described reader body is provided with swipe the card district and gauge tap, it is that equipment is powered, serial ports is connected with PC that the lower end of described reader body is provided with power interface, is also provided with the BDM mouth that can carry out the upgrading of equipment and the setting to reading writing information.
As further improvement of the utility model, described in swipe the card in district the antenna and RC531 card reader that are connected with the district that swipes the card be installed, wireless card reader reads the induced signal in the district that swipes the card and is input to apparatus body.
As further improvement of the utility model, in described reader body, an antenna is also installed, for transmitting transmitting, the reception of data between label and reader.
The beneficial effects of the utility model are: the utility model structure is simple, easy to use, and designs read-write equipment bottom, are convenient to amendment, are also convenient to some research and development fan simultaneously and learn to use.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Indicate in figure: 1-reader body; 2-swipes the card district; 3-power interface; 4-powers serial ports, 5-BDM mouth; 6-gauge tap.
Embodiment
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment, only for explaining the utility model, does not form the restriction to the utility model protection domain.
Fig. 1 shows a kind of embodiment of the utility model embedded RFID read-write equipment, comprises reader and RFID, described electronic tag built-in chip, antenna.The top of described reader body 1 is provided with swipe the card district 2 and gauge tap 6, and the lower end of described reader body 1 is provided with power interface 3 for equipment serial ports 4 of powering and is connected with PC.BDM mouth 5 can carry out the upgrading of equipment and the setting to reading writing information.
Described reader uses KL25 and RC531 to be main control chip, adopts simulation SPI communication, is connected by KL25 with RC531 by Du Pont's line.RC531 is low cost under ISO/IEC 14443 standard, the contactless read-write chip of high integrated, high performance Mifare, based on the non-contact communication pattern of 13.56MHz.There is high integrated modulation /demodulation module MF RC531 inside, internal launcher can Direct driver based on the contactless antenna of 13.56MHz, ultimate range can reach 10cm.
Non-transformer in described RFID, the whole energy required for running for chip must by reader transmission.Between reader and rfid card, the transmission of energy is based on coupling transformer principle, shown in Figure 1.Reader terminal antenna produces powerful high frequency magnetic field to transmit energy, and the most frequently used frequency has 125kHz and 13.56MHz.If a RFID is placed near reader antenna, the part in the magnetic field of reader antenna will through the coil of card, induced potential Ui in the coil of card.Just be used for chip power supply after this voltage is rectified, for data in card are launched or received the data of read write line.Because reader antenna is very weak with being coupled of card coil, therefore need the magnitude of current in aerial coil is increased, to reach necessary magnetic field intensity, this realizes by giving a coil LT electric capacity CT in parallel.The value of electric capacity through selecting, will match with the parallel resonance frequency making itself and antenna and the signal frequency transmitted.
During use, user connects 5v power supply by power interface 3, and power supply serial ports 4 is connected with PC, starts gauge tap 6, RFID is placed on the district 2 that swipes the card, and by PC window display card internal information, and changes the content of RFID by PC.When user wants change label substance form or increase functional requirement, by the BDM mouth 5 of reader, the internal processes of change reader is arranged.
Claims (3)
1. an embedded RFID read-write equipment, comprise reader and be arranged at the RFID on article, it is characterized in that: the top of described reader body (1) is provided with the district that swipes the card (2) and gauge tap (6), the lower end of described reader body (1) is provided with power interface (3) and is connected with PC for equipment serial ports (4) of powering, and is also provided with one and can carries out the upgrading of equipment and the BDM mouth (5) to the setting of reading writing information.
2. according to right, require the embedded RFID read-write equipment described in 1, it is characterized in that: described in swipe the card in district (2) antenna and RC531 card reader that are connected with the district that swipes the card (2) be installed, wireless card reader reads the induced signal in the district (2) that swipes the card and is input to apparatus body.
3. according to right, require the embedded RFID read-write equipment described in 1, it is characterized in that: in described reader body (1), an antenna is also installed, for transmitting transmitting, the reception of data between label and reader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501308.XU CN204166546U (en) | 2014-09-02 | 2014-09-02 | Embedded rfid read-write equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501308.XU CN204166546U (en) | 2014-09-02 | 2014-09-02 | Embedded rfid read-write equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204166546U true CN204166546U (en) | 2015-02-18 |
Family
ID=52540212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420501308.XU Expired - Fee Related CN204166546U (en) | 2014-09-02 | 2014-09-02 | Embedded rfid read-write equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204166546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742103A (en) * | 2016-03-18 | 2016-07-06 | 王锐 | Intelligent pressure plate for transformer substation |
-
2014
- 2014-09-02 CN CN201420501308.XU patent/CN204166546U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742103A (en) * | 2016-03-18 | 2016-07-06 | 王锐 | Intelligent pressure plate for transformer substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20160902 |