CN202662071U - Video attendance machine with facial recognition function - Google Patents
Video attendance machine with facial recognition function Download PDFInfo
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- CN202662071U CN202662071U CN 201220272261 CN201220272261U CN202662071U CN 202662071 U CN202662071 U CN 202662071U CN 201220272261 CN201220272261 CN 201220272261 CN 201220272261 U CN201220272261 U CN 201220272261U CN 202662071 U CN202662071 U CN 202662071U
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- infrared
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- attendance machine
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- 230000001815 facial effect Effects 0.000 title abstract description 8
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 abstract description 3
- 241001508691 Martes zibellina Species 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a video attendance machine with facial recognition function, which comprises an infrared recognition device, a computer, a singlechip and a keyboard and a liquid crystal display connected with the singlechip, wherein the infrared recognition device comprises a CMOS (Complementary Metal Oxide Semiconductor) infrared shooting module, a dynamic regulation fill-in light circuit, a PWM control circuit and an infrared LED array; the CMOS infrared shooting module is connected with the singlechip, the input end of the dynamic regulation fill-in light circuit is connected with the output end of the singlechip, and the output end of the dynamic regulation fill-in light circuit is connected with the infrared LED array via the PWM control circuit; and the singlechip is in communication connection with the computer. Because the video attendance machine is provided with the dynamic regulation fill-in light circuit, facial light source can be kept sable during facial recognition, the best image can be acquired, and the authenticity and the safety of authentication can be ensured.
Description
Technical field
The utility model belongs to the living things feature recognition field, relates to a kind of Video check work attendance machine of face recognition function.
Background technology
At present, each enterprises and institutions carries out track record by attendance recorder to employee's situation on and off duty and access door visit in the society.Use now the various attendance recorders such as the most general magnetic card, bar code, Contact Type Ic Card, radio-frequency card all can not guarantee authenticity and the security that authenticates fully.The Video check work attendance machine that possesses face recognition function becomes a kind of trend.In the man face image acquiring process, light is the key factor that affects discrimination.Designing a kind ofly when carrying out face recognition, facial light source can be kept stable, obtain the Video check work attendance machine of optimized image, is an important research topic.
The utility model content
Technical problem to be solved in the utility model provides a kind of Video check work attendance machine with face recognition function, have dynamic adjustments light filling circuit, when carrying out face recognition, facial light source can be kept stable, obtain optimized image, guarantee the authenticity and the security that authenticate.
The technical solution of utility model is as follows:
A kind of Video check work attendance machine of face recognition function comprises infrared identification device, computing machine, single-chip microcomputer and the keyboard that is connected with single-chip microcomputer and liquid crystal display;
Described infrared identification device comprises CMOS infrared photography module, dynamic adjustments light filling circuit, pwm control circuit and infrared LED array; CMOS infrared photography module is connected with single-chip microcomputer, and the input end of dynamic adjustments light filling circuit connects the output terminal of single-chip microcomputer, and the output terminal of dynamic adjustments light filling circuit joins through pwm control circuit and infrared LED array;
Described single-chip microcomputer is connected with compunication.
The Video check work attendance machine of described face recognition function also comprises watchdog circuit and the hummer that links to each other with single-chip microcomputer.
Beneficial effect:
The Video check work attendance machine of the utility model face recognition function has dynamic adjustments light filling circuit, when carrying out face recognition, facial light source can be kept stable, obtains optimized image, guarantees the authenticity and the security that authenticate.
Description of drawings
Fig. 1 is the Video check work attendance machine theory diagram of the utility model face recognition function.
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details:
As shown in Figure 1, a kind of Video check work attendance machine of face recognition function comprises infrared identification device, computing machine, single-chip microcomputer and the keyboard that is connected with single-chip microcomputer and liquid crystal display;
Described infrared identification device comprises CMOS infrared photography module, dynamic adjustments light filling circuit, pwm control circuit and infrared LED array; CMOS infrared photography module is connected with single-chip microcomputer, and the input end of dynamic adjustments light filling circuit connects the output terminal of single-chip microcomputer, and the output terminal of dynamic adjustments light filling circuit joins through pwm control circuit and infrared LED array;
Described single-chip microcomputer is connected with compunication.
The Video check work attendance machine of described face recognition function also comprises watchdog circuit and the hummer that links to each other with single-chip microcomputer.
The signals such as work attendance person's work attendance code name and password are processed by single-chip microcomputer by keyboard and are arrived computing machine, and CMOS infrared photography module collection human body face image information is delivered to single-chip microcomputer and is transferred to computing machine again.Personal file in two kinds of information and date storehouses that computing machine will be inputted compares, and sends control command and returns to data communication interface, simultaneously work attendance information is sent to attendance management department.Data communication interface sends the control command that computing machine sends to single-chip microcomputer, and single-chip microcomputer sends order to liquid crystal display and hummer, the expression checking-in result.
In order to guarantee when carrying out face recognition, keep facial light stability, obtain optimized image, guarantee the authenticity and the security that authenticate, preset the light intensity what a Parametric Representation CMOS infrared photography module obtains optimized image, imageing sensor in the CMOS infrared photography module is gathered the light intensity of environment to dynamic adjustments light filling circuit and default parameter compares, calculate the light-source brightness offset, control pwm control circuit output pwm signal carries out the luminous intensity light filling of pulse-length modulation control infrared LED array.Dynamic adjustments light filling circuit and pwm control circuit are existing mature technology.
Claims (2)
1. the Video check work attendance machine of a face recognition function is characterized in that, comprises infrared identification device, computing machine, single-chip microcomputer and the keyboard that is connected with single-chip microcomputer and liquid crystal display;
Described infrared identification device comprises CMOS infrared photography module, dynamic adjustments light filling circuit, pwm control circuit and infrared LED array; CMOS infrared photography module is connected with single-chip microcomputer, and the input end of dynamic adjustments light filling circuit connects the output terminal of single-chip microcomputer, and the output terminal of dynamic adjustments light filling circuit joins through pwm control circuit and infrared LED array;
Described single-chip microcomputer is connected with compunication.
2. the Video check work attendance machine of face recognition function according to claim 1 is characterized in that, also comprises the watchdog circuit and the hummer that link to each other with single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272261 CN202662071U (en) | 2012-06-11 | 2012-06-11 | Video attendance machine with facial recognition function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272261 CN202662071U (en) | 2012-06-11 | 2012-06-11 | Video attendance machine with facial recognition function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662071U true CN202662071U (en) | 2013-01-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220272261 Expired - Fee Related CN202662071U (en) | 2012-06-11 | 2012-06-11 | Video attendance machine with facial recognition function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662071U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106056087A (en) * | 2016-06-03 | 2016-10-26 | 济源维恩科技开发有限公司 | Sign-in method based on multi-mode recognition |
| CN106263865A (en) * | 2015-05-27 | 2017-01-04 | 曾建都 | The portable type mirror structure that instant video transmits |
-
2012
- 2012-06-11 CN CN 201220272261 patent/CN202662071U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106263865A (en) * | 2015-05-27 | 2017-01-04 | 曾建都 | The portable type mirror structure that instant video transmits |
| CN106056087A (en) * | 2016-06-03 | 2016-10-26 | 济源维恩科技开发有限公司 | Sign-in method based on multi-mode recognition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN COMIX GROUP CO., LTD. Free format text: FORMER NAME: QIXIN STATIONERY CO., LTD., SHENZHEN |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong, Shenzhen, Futian District Road, Hong Kong World Trade Plaza, building 05-06, building No. 17, No. A Patentee after: Shenzhen Group Plc of one mind Address before: 518000 Guangdong, Shenzhen, Futian District Road, Hong Kong World Trade Plaza, building 05-06, building No. 17, No. A Patentee before: Qixin Stationery Co., Ltd., Shenzhen |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20140611 |