CN201281857Y - Portable SD card type RFID reader - Google Patents
Portable SD card type RFID reader Download PDFInfo
- Publication number
- CN201281857Y CN201281857Y CNU2008201378436U CN200820137843U CN201281857Y CN 201281857 Y CN201281857 Y CN 201281857Y CN U2008201378436 U CNU2008201378436 U CN U2008201378436U CN 200820137843 U CN200820137843 U CN 200820137843U CN 201281857 Y CN201281857 Y CN 201281857Y
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- CN
- China
- Prior art keywords
- interface
- rfid reader
- chip
- frequency control
- pda
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
A portable SD card-type RFID reader is characterized in that a pin for receiving signals of a radio-frequency control chip is connected with an antenna via a 50 ohms matching network circuit; one end of a SD-to-UART interface chip is connected with the radio-frequency control chip via a UART interface, and the other end thereof is connected with a PDA via an SD interface; a PDA device sends relevant commands and data via an SDIO interface; and a crystal oscillator is used for controlling the data transmission rate in transmission. The technical effects of the utility model are as follows: the arrangement of the RFID reader in a SD slot in the SD structure solves the problems of large volume and heavy weight of the RFID reader; and under a circumstance that the reading distance is not reduced, the volume of the reader is greatly reduced, so that the RFID reader exactly corresponds to the application of portable devices, and is compatible with the PDA with a standard SD interface.
Description
Technical field
The utility model relates to a kind of RFID reader, relates in particular to a kind of portable SD card type RFID reader.
Background technology
REID (RFID, be Radio Frequency I-dentification) be an automatic identification technology that moves to maturity since the eighties in 20th century, it utilizes RF-wise to carry out contactless two-way communication mode to come swap data to reach identifying purpose, can be used for discerning high-speed moving object and can discern a plurality of radio-frequency cards together, and swift and convenient to operate, be particularly suitable for the robotization of the system that realizes and not fragile.At present, the RFID technology has become the focus that market is paid close attention to, and shows according to relevant department's data prediction, and the RFID technology is used the period that is about to welcome very tremendous growth, but, general RFID reader, for reading distance more, handle lot of data, reader entire equipment body is known huge, weight can reach the 3-4 public affairs and tear jin open, uses very inconvenience, is badly in need of solving this application technology problem.
Summary of the invention
The purpose of this utility model is to provide a kind of portable SD card type RFID reader, and this reader can compatible have the PDA of standard SD interface, is easy to carry, and is in light weight.
The utility model is achieved like this, it comprises the SDIO interface, SD changes the UART interface chip, the radio frequency control chip, 50 Europe impedance matching networks, antenna, crystal oscillator, PDA equipment, housing, the received signal pin that it is characterized in that the radio frequency control chip is connected with antenna by 50 Europe matching network circuits, SD changes UART interface chip one end and is connected with the radio frequency control chip by the UART interface, SD changes another termination of UART interface chip SD interface and is connected with PDA, PDA equipment sends related command and data by the SDIO interface, crystal oscillator is used for the transfer rate of control transmission process data, the SDIO interface, SD changes the UART interface chip, the radio frequency control chip, antenna, crystal oscillator and 50 Europe impedance matching networks are in housing.
Technique effect of the present utility model is: the RFID reader is installed in the SD slot in the SD structure, it is big to have solved RFID reader volume, the problem of Heavy Weight, under the situation that does not reduce reading distance, reduce volume greatly, meet the application of portable equipment fully, and the compatible PDA that has standard SD interface.
Description of drawings
Fig. 1 is a fundamental diagram of the present utility model.
Fig. 2 is a structural representation of the present utility model.
In the drawings, 1, SDIO interface 2, SD change UART interface chip 3, radio frequency control chip 4,50 Europe impedance matching networks 5, antenna 6, crystal oscillator 7, PDA equipment 8, housing
Embodiment
As Fig. 1, shown in Figure 2, the utility model is achieved like this, it comprises SDIO interface 1, SD changes UART interface chip 2, radio frequency control chip 3,50 Europe impedance matching networks 4, antenna 5, crystal oscillator 6, PDA equipment 7, housing 8, the received signal pin that it is characterized in that radio frequency control chip 3 is connected with antenna by 50 Europe matching network circuits, SD changes UART interface chip one end and is connected with the radio frequency control chip by the UART interface, SD changes another termination of UART interface chip SD interface and is connected with PDA, PDA equipment sends related command and data by the SDIO interface, crystal oscillator is used for the transfer rate of control transmission process data, the SDIO interface, SD changes the UART interface chip, the radio frequency control chip, antenna, crystal oscillator and 50 Europe impedance matching networks are in housing.
Described handheld RFID reader links to each other with the PDA equipment that has the SD interface slot by described SDIO interface, reader Control Software from PDA equipment sends relevant order or data by the SDIO interface mode to the handheld RFID reader, change the UART interface chip by described SD and convert the revolution of SDIO interface mode the data of UART interface mode to, pass to the described radio frequency control chip that has the UART interface and the order of being received or data are responded or handle; In electronic tag and handheld RFID reader communication process, the signal of electronic tag emission, after the described antenna reception by described handheld RFID reader, through described 50 Ω impedance matching networks, passing to described radio frequency control chip handles data, described radio frequency control chip passes to described SD to data by the UART interface mode earlier to the data after handling changes the data that the UART interface chip converts the SDIO interface mode to, the reader control desk that transfers to PDA inside through described SDIO interface shows data and asks or handle again, and described crystal oscillator is used for the transfer rate of control transmission process data.
Described housing 3 is of a size of (64.5～65) * (23.4～24.1) * (2.0～2.1) millimeter. and housing SD socket portion wall thickness is 2.05mm, differ 0.05mm in the Measurement Allowance with the SD interface device 2.1mm of standard, what components and parts mainly were distributed in described housing 3 does not need to insert the first half in the SD interface slot.
Claims (1)
1, a kind of portable SD card type RFID reader, it comprises the SDIO interface, SD changes the UART interface chip, the radio frequency control chip, 50 Europe impedance matching networks, antenna, crystal oscillator, PDA equipment, housing, the received signal pin that it is characterized in that the radio frequency control chip is connected with antenna by 50 Europe matching network circuits, SD changes UART interface chip one end and is connected with the radio frequency control chip by the UART interface, SD changes another termination of UART interface chip SD interface and is connected with PDA, PDA equipment sends related command and data by the SDIO interface, crystal oscillator is used for the transfer rate of control transmission process data, the SDIO interface, SD changes the UART interface chip, the radio frequency control chip, antenna, crystal oscillator and 50 Europe impedance matching networks are in housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201378436U CN201281857Y (en) | 2008-10-30 | 2008-10-30 | Portable SD card type RFID reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201378436U CN201281857Y (en) | 2008-10-30 | 2008-10-30 | Portable SD card type RFID reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281857Y true CN201281857Y (en) | 2009-07-29 |
Family
ID=40928727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201378436U Expired - Lifetime CN201281857Y (en) | 2008-10-30 | 2008-10-30 | Portable SD card type RFID reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281857Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122753A (en) * | 2010-12-31 | 2011-07-13 | 惠州Tcl移动通信有限公司 | Near field communication electronic device and antennae thereof |
| CN102176236A (en) * | 2011-02-14 | 2011-09-07 | 华为终端有限公司 | Printed circuit board, secure digital card and method for manufacturing printed circuit board |
-
2008
- 2008-10-30 CN CNU2008201378436U patent/CN201281857Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122753A (en) * | 2010-12-31 | 2011-07-13 | 惠州Tcl移动通信有限公司 | Near field communication electronic device and antennae thereof |
| CN102176236A (en) * | 2011-02-14 | 2011-09-07 | 华为终端有限公司 | Printed circuit board, secure digital card and method for manufacturing printed circuit board |
| CN102176236B (en) * | 2011-02-14 | 2013-07-10 | 华为终端有限公司 | Printed circuit board, secure digital card and method for manufacturing printed circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN ZTE CHANGTIAN INFORMATION TECHNOLOGY CO., Free format text: FORMER OWNER: ZTE CHANGTIAN INFORMATION TECHNOLOGY (NANCHANG) CO., LTD. Effective date: 20101202 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 330096 BUILDING 4, ZTE NANCHANG SOFTWARE PARK, NO.688, AIXIHU NORTH ROAD, NEW AND HIGH TECHNOLOGY ZONE, NANCHANG CITY, JIANGXI PROVINCE TO: 518057 TOWER B, 10/F, TOWER BUILDING 3, CHINESE ACADEMY OF SCIENCE AND TECHNOLOGY FOR DEVELOPMENT, GAOXIN SOUTH ROAD 1, NEW AND HIGH TECHNOLOGY INDUSTRIAL PARK, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101202 Address after: Tower 3 No. 518057 Guangdong province Shenzhen city Nanshan District high tech Industrial Park South a China Technology Development Institute 10 floor B block Patentee after: Shenzhen ZTE-V Information Technology Co., Ltd. Address before: 330096 building, building four, Zhongxing Nanchang Software Park, No. 688 AI Sihu Road, Nanchang hi tech Zone, Jiangxi Patentee before: ZTE Changtian Information Technology (Nanchang) Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZTE Changtian Information Technology (Nanchang) Co., Ltd. Assignor: Shenzhen ZTE-V Information Technology Co., Ltd. Contract record no.: 2013360000034 Denomination of utility model: Portable SD card type RFID reader Granted publication date: 20090729 License type: Exclusive License Record date: 20130625 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090729 |
|
| CX01 | Expiry of patent term |