CN202600720U - Identity card reading circuit for handheld verification instrument of second-generation identity cards - Google Patents
Identity card reading circuit for handheld verification instrument of second-generation identity cards Download PDFInfo
- Publication number
- CN202600720U CN202600720U CN 201220264336 CN201220264336U CN202600720U CN 202600720 U CN202600720 U CN 202600720U CN 201220264336 CN201220264336 CN 201220264336 CN 201220264336 U CN201220264336 U CN 201220264336U CN 202600720 U CN202600720 U CN 202600720U
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- China
- Prior art keywords
- card reading
- circuit
- processor
- card reader
- identity
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- 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.)
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Abstract
The utility model discloses an identity card reading circuit for a handheld verification instrument of second-generation identity cards. The identity card reading circuit comprises a card reading unit, a decrypting unit, a card reading processor and a central processor. The card reading unit comprises a card reading antenna and a signal processing module, the signal processing module comprises an amplifying circuit, a filtering circuit and an analog-to-digital (A/D) conversion circuit, and an output end of the card reading antenna sequentially passes through the amplifying circuit, the filtering circuit and the A/D conversion circuit to be connected with the card reading processor. A Public Security Ministry safe module and the card reading processor are respectively connected with the central processor through a serial port switching chip. The identity card reading circuit for the handheld verification instrument is high in card reading accuracy and good in reliability, greatly improves card reading speed due to the fact that the 8-bit card reading processor is independently used for card reading and decrypting, and has the advantages of being simple in structure, safe to use and the like.
Description
Technical field
The utility model relates to the hand-held appearance I.D. Card Reader circuit of veritifying of a kind of Certification of Second Generation.
Background technology
Along with popularizing of second generation I.D., the use of China second-generation identity card reader has also more and more widely become one of indispensable office appliance in a lot of fields such as public security, education and business administration.Certification of Second Generation is veritified appearance and is used to read Certification of Second Generation information; And the information database that combines to prestore is compared and is veritified; The final purpose that realizes that identity is veritified is widely used in the systems such as examinee's examination management, staff attendance management, for the enforcement of management work provides the support on the reliable technique.
Yet it is big that existing Certification of Second Generation is veritified appearance ubiquity volume, and Heavy Weight uses and carry problem such as inconvenience.The Card Reader accuracy of I.D. Card Reader circuit is lower, and with the shared processor of whole veritification appearance, card reading speed is very limited.
The utility model content
The purpose of the utility model is to solve the deficiency of prior art, provides a kind of Certification of Second Generation simple in structure, safe in utilization, that card reading speed is fast the hand-held appearance I.D. Card Reader circuit of veritifying.
The purpose of the utility model realizes through following technical scheme: the hand-held appearance I.D. Card Reader circuit of veritifying of Certification of Second Generation; It comprises card reading unit, decrypting device, Card Reader processor and central processing unit; Card reading unit comprises card reading antennas and signal processing module; Signal processing module comprises amplifying circuit, filtering circuit and A/D change-over circuit, and the output of card reading antennas links to each other with the Card Reader processor with the A/D change-over circuit through amplifying circuit, filtering circuit successively; Decrypting device comprises Ministry of Public Security's security module, and Ministry of Public Security's security module is connected with the Card Reader processor through the I2C bus; Ministry of Public Security's security module is switched chip through serial ports respectively with the Card Reader processor and is connected with central processing unit.
The described central processing unit of the utility model is the ARM9 processor.
The beneficial effect of the utility model is: the Card Reader accuracy of this veritification appearance I.D. Card Reader circuit is high, good reliability, and uses one 8 Card Reader processor to supply Card Reader to conciliate secret emissary's usefulness separately, has promoted card reading speed greatly; In addition, also have characteristics such as simple in structure and safe in utilization.
Description of drawings
Fig. 1 is the utility model structural representation block diagram.
Embodiment
The technical scheme of the utility model is described in further detail: as shown in Figure 1 below in conjunction with accompanying drawing; The hand-held appearance I.D. Card Reader circuit of veritifying of Certification of Second Generation; It comprises card reading unit, decrypting device, Card Reader processor and ARM9 processor; Card reading unit comprises card reading antennas and signal processing module, and signal processing module comprises amplifying circuit, filtering circuit and A/D change-over circuit, and the output of card reading antennas links to each other with the Card Reader processor with the A/D change-over circuit through amplifying circuit, filtering circuit successively; Decrypting device comprises Ministry of Public Security's security module, and Ministry of Public Security's security module is connected with the Card Reader processor through the I2C bus; Ministry of Public Security's security module is switched chip through serial ports respectively with the Card Reader processor and is connected with the ARM9 processor.
Claims (2)
1. Certification of Second Generation is handed and is veritified appearance I.D. Card Reader circuit; It is characterized in that: it comprises card reading unit, decrypting device, Card Reader processor and central processing unit; Card reading unit comprises card reading antennas and signal processing module; Signal processing module comprises amplifying circuit, filtering circuit and A/D change-over circuit, and the output of card reading antennas links to each other with the Card Reader processor with the A/D change-over circuit through amplifying circuit, filtering circuit successively; Decrypting device comprises Ministry of Public Security's security module, and Ministry of Public Security's security module is connected with the Card Reader processor through the I2C bus; Ministry of Public Security's security module is switched chip through serial ports respectively with the Card Reader processor and is connected with central processing unit.
2. the hand-held appearance I.D. Card Reader circuit of veritifying of Certification of Second Generation according to claim 1, it is characterized in that: described central processing unit is the ARM9 processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264336 CN202600720U (en) | 2012-06-06 | 2012-06-06 | Identity card reading circuit for handheld verification instrument of second-generation identity cards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264336 CN202600720U (en) | 2012-06-06 | 2012-06-06 | Identity card reading circuit for handheld verification instrument of second-generation identity cards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600720U true CN202600720U (en) | 2012-12-12 |
Family
ID=47318244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220264336 Expired - Lifetime CN202600720U (en) | 2012-06-06 | 2012-06-06 | Identity card reading circuit for handheld verification instrument of second-generation identity cards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600720U (en) |
-
2012
- 2012-06-06 CN CN 201220264336 patent/CN202600720U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
|
| CX01 | Expiry of patent term |