CN103942510A - Wiegand signal reading and converting device - Google Patents
Wiegand signal reading and converting device Download PDFInfo
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- CN103942510A CN103942510A CN201310020620.7A CN201310020620A CN103942510A CN 103942510 A CN103942510 A CN 103942510A CN 201310020620 A CN201310020620 A CN 201310020620A CN 103942510 A CN103942510 A CN 103942510A
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- wiegand signal
- wiegand
- face
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Abstract
The invention relates to a Wiegand signal reading and converting device. The device comprises a control module, a power circuit, a crystal oscillator circuit, a reset circuit, a toggle switching circuit, a Wiegand signal receiving circuit, a Wiegand signal transmitting circuit, an RS485 communication circuit and a Wiegand signal input switching circuit, wherein the power circuit, the crystal oscillator circuit, the reset circuit, the toggle switching circuit, the Wiegand signal receiving circuit, the Wiegand signal transmitting circuit, the RS485 communication circuit and the Wiegand signal input switching circuit are in circuit connection with the control module. The Wiegand signal input switching circuit is connected with an IC/ID password keyboard card reader. The Wiegand signal transmitting circuit is connected with an access controller. The RS485 communication circuit is connected with a face recognition PC through an RS232-RS485 converter. According to the Wiegand signal reading and converting device, card swiping and key information output by the IC/ID password keyboard card reader of a Wiegand interface can be read, the Wiegand signal reading and converting device and the face identification PC can conduct 485 communication, and 1:1 or 1:N face recognition is achieved. A result of face recognition can be converted into a standard Wiegand signal to be output to the access controller.
Description
Technical field
The present invention relates to a kind of device for recognition of face field, be specifically related to a kind of Wiegand signal and read and conversion equipment.
Background technology
Now Domestic relates to the product of face recognition technology, mainly contains two kinds of application models, is respectively 1:1 and 1:N.1:N refers to single face pattern; 1:1 refers to card number+people face or job number+people face, and must both mate recognition of face could success.People's face information is to obtain by camera collection people face head portrait, and card number or job number generally adopt IC/ID code keypad card reader to obtain, and IC/ID code keypad card reader major part is all to adopt the output of Wei root interface.Current is mainly by access controller, to read the Wiegand signal of IC/ID code keypad card reader output, and recognition of face PC is difficult to obtain the Wiegand signal information that access controller is read.This device can read the Wiegand signal of IC/ID code keypad card reader output, and can be card number or key information by software analysis judgment, then the information exchange obtaining is crossed to RS485 interface sends to recognition of face PC, and recognition of face PC completes the recognition of face of 1:1.
Recognition of face gate inhibition product based on PC platform, the result after the correct identification of face identification system is mainly exported by two kinds of modes, and the one, by Ethernet interface, control TCP/IP network-type access controller and export; The 2nd, by 485 serial ports, control RS485 interconnection type access controller and export.The common shortcoming of these two kinds of way of outputs is: must obtain the SDK kit of access controller, then based on kit exploitation recognition of face application software.The SDK kit of the access controller product of Er Mei company all may be different, thereby make face recognition application software generic poor.And the security of Ethernet interface communication is too poor, some does not allow to occur the equipment of Ethernet interface to the higher place of security requirement.And this device has just in time solved the problems referred to above, result after the correct identification of face identification system sends to this device by 485 serial ports, this device is converted into the Wiegand signal of international uniform standard, then send to access controller, can be connected with domestic all access controllers with standard Wei root interface.
Summary of the invention
The object of the invention is to propose a kind of Wiegand signal and read and conversion equipment, can read the Wiegand signal of international uniform standard, for the face recognition application pattern of 1:1 and 1:N.This device can also be the Wiegand signal of international uniform standard by results conversion after the correct identification of face identification system, send to access controller, a whole set of face identification device can be replaced traditional IC/ID code keypad card reader, forms a set of high-tech face recognition door control system.
For achieving the above object, the invention provides a kind of Wiegand signal reads and conversion equipment, it is characterized in that, this device comprises control module, the power circuit, crystal oscillating circuit, Wiegand signal receiving circuit, reset circuit, toggle switch circuit, RS485 telecommunication circuit, the Wiegand signal transtation mission circuit that are connected with this control module circuit, wherein Wiegand signal receiving circuit is connected with Wiegand signal input-switching circuit; Above-mentioned control module adopts single-chip microcomputer, and power circuit is control module and other circuit supplies, and crystal oscillating circuit provides clock source for control module; Above-mentioned Wiegand signal input-switching circuit has adopted binary channels demultiplexer to carry out the switching of Wiegand signal input, multifunctionality that can implement device.
Technical scheme based on above-mentioned, the present invention has the following advantages:
1. the present invention adopts single-chip microcomputer as control module, there is dependable performance, be easy to expansion feature, coordinate suitable Single Chip C Language program code or assembly language program(me) code, make it have very high intelligent level;
2. the RS485 telecommunication circuit of apparatus of the present invention has increased TVS diode, can prevent that control module is because of the pulse of moment, as the damage that noise caused or the inefficacy of static discharge effect, thunderbolt and Switching Power Supply;
3. apparatus of the present invention can read the Wiegand signal of international uniform standard, IC/ID code keypad card reader and recognition of face PC equipment are built into the face recognition products of a set of high-tech 1:1;
4. apparatus of the present invention can be the Wiegand signal of international uniform standard by the results conversion of recognition of face, coordinate access controller, form a set of general recognition of face gate inhibition product based on PC;
5. apparatus of the present invention adopt RS485 communication, can be built into a set of network by 485 buses, a recognition of face PC mixes a RS232-RS485 converter and can communicate by letter with 16 these devices of cover simultaneously, every covering device has different separately address (0-15), realize by toggle switch address, and every covering device can connect separately an IC/ID code keypad card reader and an access controller.
Accompanying drawing explanation
Fig. 1 is that Wiegand signal of the present invention reads and the module diagram of conversion equipment.
Fig. 2 is that Wiegand signal of the present invention reads and the structural representation of the first example of conversion equipment.
Fig. 3 is that Wiegand signal of the present invention reads and the structural representation of the second example of conversion equipment.
Fig. 4 is that Wiegand signal of the present invention reads and the structural representation of the third example of conversion equipment.
Fig. 5 is that Wiegand signal of the present invention reads and the structural representation of the 4th kind of example of conversion equipment.
Embodiment
Below in conjunction with accompanying drawing, illustrate embodiments of the invention.
Please refer to shown in Fig. 1, a kind of Wiegand signal of the present invention reads and conversion equipment 2 comprises control module 26, the power circuit 22, crystal oscillating circuit 23, Wiegand signal receiving circuit 24, reset circuit 25, toggle switch circuit 27, RS485 telecommunication circuit 28, the Wiegand signal transtation mission circuit 29 that are connected with these control module 26 circuit.Wiegand signal receiving circuit 24 is also connected with Wiegand signal input-switching circuit 21 circuit.
In the present invention, control module 26 adopts single-chip microcomputer.Power circuit 22, by series of voltage modulate circuit, finally obtains stable voltage to control module 26 and other circuit supplies.Crystal oscillating circuit 23 provides stable, clock source accurately for control module 26.Reset circuit 25 is mainly used in the reset of control module 26.During debugged program, when occurring that control module 26 crashes or program breaks down, can control module 26 normally be worked by reset circuit 25.Toggle switch circuit 27 is controlled the baud rate of 485 communications by toggle switch, have 2400,4800,9600,19,200 four kinds of baud rates optional, meets the baud rate of various main flows; In addition, can also arrange by toggle switch that Wiegand signal reads and 485 mailing addresses of conversion equipment 2, address 0-15 is optional, can once access 16 cover Wiegand signals and read and conversion equipment 2 in 485 buses.Wiegand signal input-switching circuit 21 is for switching the Wiegand signal of IC/ID code keypad card reader 1 input, under normal circumstances, the Wiegand signal of input enters control module by Wiegand signal receiving circuit 24, when there is emergency, the Wiegand signal of input can be switched to access controller 5, be equivalent to IC/ID code keypad card reader 1 and directly dock with access controller 5.Wiegand signal receiving circuit 24 switches the Wiegand signal of coming to control module 26 for receiving Wiegand signal input-switching circuit 21.Wiegand signal transtation mission circuit 29 becomes the Wiegand signal of standard to export to access controller for the results conversion that recognition of face PC4 is sended over.RS485 telecommunication circuit 28 for Wiegand signal, read and conversion equipment 2 and recognition of face PC4 between communicate by letter, because recognition of face PC4 does not have RS485 interface, so read and conversion equipment 2 directly adds last RS232-RS485 converter 3 with recognition of face PC4 at Wiegand signal.
As shown in Figure 2, for Wiegand signal of the present invention reads and the structural representation of a kind of example of conversion equipment, be mainly used in the non-gate inhibition's occasion of recognition of face of 1:1.Comprise IC/ID code keypad card reader 1, Wiegand signal reads and conversion equipment 2, RS232-RS485 converter 3, recognition of face PC4.Wiegand signal reads and conversion equipment 2 reads the Wiegand signal of IC/ID code keypad card reader 1, parses the information of card number or button, then these card numbers or key information are sent to recognition of face PC4 by RS232-RS485 converter 3 by software.Recognition of face PC4, according to the card number or the key information that obtain, carries out the recognition of face of 1:1.
As shown in Figure 3, for Wiegand signal of the present invention reads and the structural representation of another example of conversion equipment, be mainly used in the recognition of face gate inhibition occasion of 1:N.Comprise recognition of face PC4, RS232-RS485 converter 3, Wiegand signal reads and conversion equipment 2, access controller 5.Recognition of face PC4 has carried out by RS232-RS485 converter 3, sending to Wiegand signal to read and conversion equipment 2 recognition result after the recognition of face of 1:N, Wiegand signal reads and conversion equipment 2 is converted to corresponding Wiegand signal by recognition result and sends to access controller 5, and access controller 5 is carried out corresponding actions according to the Wiegand signal of receiving.Because Wiegand signal is international uniform standard, the versatility of this example is very good, by Wiegand signal, reads and conversion equipment 2 makes the recognition of face PC4 can be connected with domestic all access controllers with standard Wei root interface.
As shown in Figure 4, for Wiegand signal of the present invention reads and the structural representation of another example of conversion equipment, be mainly used in the recognition of face gate inhibition occasion of 1:1.Comprise IC/ID code keypad card reader 1, Wiegand signal reads and conversion equipment 2, RS232-RS485 converter 3, recognition of face PC4, access controller 5.Wiegand signal reads and conversion equipment 2 reads the Wiegand signal of IC/ID code keypad card reader 1, parses the information of card number or button, then these card numbers or key information are sent to recognition of face PC4 by RS232-RS485 converter 3 by software.Recognition of face PC4, according to the card number or the key information that obtain, carries out the recognition of face of 1:1.Recognition of face PC4 sends to Wiegand signal to read and conversion equipment 2 by RS232-RS485 converter 3 recognition result, Wiegand signal reads and conversion equipment 2 is converted to corresponding Wiegand signal by recognition result and sends to access controller 5, and access controller 5 is carried out corresponding actions according to the Wiegand signal of receiving.
As shown in Figure 5, for Wiegand signal of the present invention reads and the structural representation of another example of conversion equipment, be mainly used in the 1:1 of network-type or the recognition of face of 1:N of various occasions, comprise gate inhibition, work attendance etc.Comprise n cover IC/ID code keypad card reader, n cover Wiegand signal reads and conversion equipment, 1 RS232-RS485 converter, 1 recognition of face PC, n cover access controller, the quantity of n depends on practical application needs, but is not more than 16.Because Wiegand signal reads and conversion equipment and recognition of face PC adopt 485 bus structure to communicate, so a recognition of face PC can connect a plurality of Wiegand signals and read and conversion equipment simultaneously, concrete quantity is determined by the figure place of toggle switch, this device toggle switch is 4, can connect 16 Wiegand signals simultaneously and read and conversion equipment, can expand as required.Each Wiegand signal reads and conversion equipment can connect independently IC/ID code keypad card reader and access controller.Specific implementation process is as follows: Wiegand signal reads and conversion equipment reads the Wiegand signal of corresponding IC/ID code keypad card reader, by software, parse the information of card number or button, then these card numbers or key information are sent to recognition of face PC by RS232-RS485 converter.Recognition of face PC, according to the card number or the key information that obtain, carries out the recognition of face of 1:1.Recognition of face PC recognition result sends to the Wiegand signal of corresponding address (being set to 0-15 by toggle switch) to read and conversion equipment by RS232-RS485 converter, Wiegand signal reads and conversion equipment is converted to corresponding Wiegand signal by recognition result and sends to corresponding access controller, and access controller is carried out corresponding actions according to the Wiegand signal of receiving.
Although the present invention describes by specific embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.It will be understood by those skilled in the art that without departing from the present invention, can also carry out various conversion and alternative on an equal basis to the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole embodiments that fall within the scope of the claims in the present invention.
Claims (7)
1. a Wiegand signal reads and conversion equipment, it is characterized in that, this device comprises control module (26), the power circuit (22), crystal oscillating circuit (23), Wiegand signal receiving circuit (24), reset circuit (25), toggle switch circuit (27), RS485 telecommunication circuit (28), the Wiegand signal transtation mission circuit (29) that are connected with described control module (26) circuit; Described Wiegand signal receiving circuit (24) is connected with described Wiegand signal input-switching circuit (21) circuit.
2. Wiegand signal according to claim 1 reads and conversion equipment, it is characterized in that, described control module (26) adopts single-chip microcomputer.
3. Wiegand signal according to claim 1 reads and conversion equipment, it is characterized in that, described Wiegand signal input-switching circuit (21) is connected with IC/ID code keypad card reader (1), has adopted binary channels demultiplexer to carry out the switching of Wiegand signal input.
4. Wiegand signal according to claim 1 reads and conversion equipment, it is characterized in that, described RS485 telecommunication circuit (28) is by RS232-RS485 converter (3) and recognition of face PC(4) be connected.
5. Wiegand signal according to claim 1 reads and conversion equipment, it is characterized in that, for reading the Wiegand signal of IC/ID code keypad card reader (1) output, described IC/ID code keypad card reader (1) comprises the IC/ID card reader of not being with button.
6. Wiegand signal according to claim 5 reads and conversion equipment, it is characterized in that, described control module (26) is reduced to Wiegand signal after card number or button data by RS485 telecommunication circuit (28), send to recognition of face PC(4), recognition of face PC(4) realize 1:1(card number/job number+people face) and recognition of face.
7. Wiegand signal according to claim 6 reads and conversion equipment, it is characterized in that, described recognition of face PC(4) by RS232-RS485 converter (3), the result of recognition of face is sent to control module (26), control module (26) is by Wiegand signal transtation mission circuit (29), to output to access controller (5) after corresponding standard Wiegand signal by results conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310020620.7A CN103942510A (en) | 2013-01-21 | 2013-01-21 | Wiegand signal reading and converting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310020620.7A CN103942510A (en) | 2013-01-21 | 2013-01-21 | Wiegand signal reading and converting device |
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| Publication Number | Publication Date |
|---|---|
| CN103942510A true CN103942510A (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310020620.7A Pending CN103942510A (en) | 2013-01-21 | 2013-01-21 | Wiegand signal reading and converting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243204A (en) * | 2020-03-18 | 2020-06-05 | 浩云科技股份有限公司 | Configurable distributed voice equipment |
| CN112598830A (en) * | 2020-12-10 | 2021-04-02 | 厦门四信通信科技有限公司 | Intelligent terminal of gate |
| CN113407471A (en) * | 2021-06-28 | 2021-09-17 | 厦门熵基科技有限公司 | Signal sharing line, signal selection method, electronic device and storage medium |
Citations (2)
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| US6411200B1 (en) * | 1998-03-26 | 2002-06-25 | Kabushiki Kaisha Toshiba | Card reader/writer and communication method of card reader writer |
| CN200956595Y (en) * | 2006-09-28 | 2007-10-03 | 深圳达实智能股份有限公司 | Interface converting device |
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2013
- 2013-01-21 CN CN201310020620.7A patent/CN103942510A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6411200B1 (en) * | 1998-03-26 | 2002-06-25 | Kabushiki Kaisha Toshiba | Card reader/writer and communication method of card reader writer |
| CN200956595Y (en) * | 2006-09-28 | 2007-10-03 | 深圳达实智能股份有限公司 | Interface converting device |
Non-Patent Citations (1)
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| 俞新武: "嵌入式多重识别通道系统的设计与开发", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243204A (en) * | 2020-03-18 | 2020-06-05 | 浩云科技股份有限公司 | Configurable distributed voice equipment |
| CN112598830A (en) * | 2020-12-10 | 2021-04-02 | 厦门四信通信科技有限公司 | Intelligent terminal of gate |
| CN113407471A (en) * | 2021-06-28 | 2021-09-17 | 厦门熵基科技有限公司 | Signal sharing line, signal selection method, electronic device and storage medium |
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Application publication date: 20140723 |