CN201994926U - Computer finger-print switch - Google Patents
Computer finger-print switch Download PDFInfo
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- CN201994926U CN201994926U CN2011200389435U CN201120038943U CN201994926U CN 201994926 U CN201994926 U CN 201994926U CN 2011200389435 U CN2011200389435 U CN 2011200389435U CN 201120038943 U CN201120038943 U CN 201120038943U CN 201994926 U CN201994926 U CN 201994926U
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- fingerprint
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- switch
- finger
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Abstract
The utility model relates to a computer finger-print switch, which comprises a power module, a finger-print chip, a finger-print sensor and a main and auxiliary relay control module, wherein both the power module and the finger-print sensor are connected with the finger-print chip is connected with the main and auxiliary relay control module to output control signals. The computer finger-print switch has the benefits of being widely used on a common computer, for example, the switch can be mounted on a panel in the position of a CDROM (CD-read only memory) or a floppy drive of a computer case of a desktop; the computer finger-print switch is connected with a power system through a power interface, and allows the control signals outputted by the main and auxiliary relay control module to be connected with a main board switch jumper wire, thus users of a computer can be determined through the finger print; as for a company, the outsider can be prevented from using the computer, so as to protect the company information; and as for a household, children can be prevented from using the computer.
Description
[technical field]
The utility model relates to a kind of computer-aided equipment, refers in particular to a kind of computer fingerprint switch.
[background technology]
The active computer switch all is to be achieved by the standard machinery button, and everyone all can open computer by pressing switch, the operation user is lacked a kind of selection make that computer privacy when using is relatively poor.
[summary of the invention]
The purpose of this utility model is to have overcome above-mentioned defective, and a kind of fingerprint switch that is used for computer is provided.
The purpose of this utility model is achieved in that a kind of computer fingerprint switch, and it comprises power module, fingerprint chip, fingerprint sensor and major-minor relay control module; Power module and fingerprint sensor link to each other with the fingerprint chip, and the fingerprint chip is by connecting major-minor relay control module output control signal;
Also comprise fingerprint memory in the said structure, fingerprint memory connects the fingerprint chip;
Also comprise key-press module in the said structure, key-press module links to each other with power module;
Also comprise display module in the said structure, display module links to each other with the fingerprint chip;
Also comprise reseting module in the said structure, reseting module links to each other with the fingerprint chip;
In the said structure, described fingerprint chip is provided with the USB output;
In the said structure, described power module input connects battery and power interface;
In the said structure, described power interface is the big 4PIN power interface of corresponding computer power.
Than common computer switch, the beneficial effects of the utility model are and can extensively be installed on the common computer, for example desktop computer can be installed on the CDROM or floppy drive position panel of computer housing, and by the power supply of power interface connected system, major-minor relay control module output control signal is connected to mainboard switch wire jumper, can be via fingerprint mode controlling computer user, in company, control the use of external personnel, protection company profile to computer; In family, the control child uses the authority of computer.
[description of drawings]
Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail
Fig. 1 is a circuit block diagram of the present utility model
Fig. 2 is the circuit diagram 1 of the utility model specific embodiment
Fig. 3 is the circuit diagram 2 of the utility model specific embodiment
[embodiment]
Below in conjunction with accompanying drawing the utility model specific embodiment is described in detail.
As shown in Figure 1, the utility model relates to a kind of computer fingerprint switch, and it comprises power module, key-press module, fingerprint chip, fingerprint sensor, fingerprint memory, display module, reseting module and major-minor relay control module.
Power module, fingerprint sensor, fingerprint memory link to each other with the fingerprint chip respectively, the fingerprint chip also is connected with display module and reseting module, and by connection major-minor relay control module output control signal, thereby this control signal can directly be connected to control device switch on the computer motherboard.The fingerprint chip also is provided with the USB output in addition.Above-mentioned power module input connects battery and power interface, and wherein power interface can adopt big 4PIN power interface, thereby corresponding with the big 4PIN interface of desktop computer power supply, directly pegs graft and obtains power supply from system.
Referring to Fig. 2-3 is the specific embodiment circuit diagram, upper left quarter is a power module among Fig. 2, it is provided with VUSB, VBAT can be by USB or battery input external power source, form VIN, form 3.3V output by its power supply chip U1 simultaneously, output is provided with the filter circuit of being made up of C14, C15, four inductance of C16, C17.Further, 3.3V exports by being adjusted to the output of 1.8V behind the power supply chip U2, and is same, is provided with the filter circuit of being made up of C18, C19, four inductance of C20, C21 at the 1.8V output.
The lower right of power module is a key-press module, it comprises four-way switch S1, S2, S3, S4, wherein S1, S4 two route VIN input, S2, S3 two-way 3.3V input, four switches form SW1, SW2 respectively, SW3, CL_DET export power module to, and via 1 pin of signal diode D1-D3 input control power supply chip U1.
Fig. 2 lower left quarter is fingerprint chip and fingerprint memory, display module, reseting module partial circuit figure, and the fingerprint chip U4 upper left corner is reset circuit, and its switch Q1 is connected 60 pin of fingerprint chip U4 with the output of 3.3V voltage, reset level is provided.The upper right corner of fingerprint chip U4 is a display module, comprises three LED lamps, and the 61-63 mouth of fingerprint chip U4 is exported respectively and driven D7-D9 via a resistance R 8-R10 and be respectively applied for and show that blood orange is green.8,12 pin of fingerprint chip U4 connect 3 pin of USB interface J3, and 2 pin of fingerprint chip U4 link to each other with its 13 pin, and 1 pin of USB interface J3 then connects input power supply VUSB.3,4,9 pin of fingerprint chip U4 connect the 1-3 pin of storage chip U8 respectively, and 35,36,50 pin of fingerprint chip U4 then connect the 5-7 pin of storage chip U8.The B3 pin of fingerprint chip U4 is directly imported 1.8V, and the B4 pin is directly imported 3.3V.
Fig. 2 right lower quadrant is the major-minor relay control module, 2,3 pin of relay control chip U5, U6 are connected into VIN, 5,8 pin ground connection, 25,28 pin that 5,7 pin of relay control chip U5 connect fingerprint chip U4 are respectively controlled by it, and 29,30 pin that 5,7 pin of relay control chip U5 then connect fingerprint chip U4 are respectively controlled by it.Both 1,4 pin output relays control signal to the 1-4 pin of joint J4.
Fig. 2 upper right quarter is a test point, and the detection of the RD TD end of VIN 3.3V 1.8V ground connection and serial communication is provided respectively.
Referring to Fig. 3 is fingerprint sensor circuit figure, and the A1 of fingerprint sensor U7, A12, B7 and C3 pin are connected through the input of the filtered 1.8V power supply of C25, C12, and the C1 of fingerprint sensor U7, C12 pin 3 connect after C13, C27 filtering. the input of 3V power supply.The C7 of transducer U7, B12, C9, D7, D9, the output of C4 pin are gathered the gained finger print information by 49,47,48,40,31 pin, 1 transmission that joint is connected to fingerprint chip U4.A2, the D1 of fingerprint chip U4 connects fingerprint sensing DZ1.
It is to be noted; the utility model is not limited to above-mentioned execution mode; any simple modification, equivalent variations and modification that any those skilled in the art do the foregoing description in based on technical solutions of the utility model all belong in the protection range of the present utility model.
Claims (8)
1. computer fingerprint switch, it is characterized in that: it comprises power module, fingerprint chip, fingerprint sensor and major-minor relay control module; Power module and fingerprint sensor link to each other with the fingerprint chip, and the fingerprint chip is by connecting major-minor relay control module output control signal.
2. computer fingerprint switch as claimed in claim 1, it is characterized in that: it also comprises fingerprint memory, fingerprint memory connects the fingerprint chip.
3. computer fingerprint switch as claimed in claim 1, it is characterized in that: it also comprises key-press module, key-press module links to each other with power module.
4. computer fingerprint switch as claimed in claim 1, it is characterized in that: it also comprises display module, display module links to each other with the fingerprint chip.
5. computer fingerprint switch as claimed in claim 1, it is characterized in that: it also comprises reseting module, reseting module links to each other with the fingerprint chip.
6. as claim 1 or 5 described computer fingerprint switches, it is characterized in that: described fingerprint chip is provided with the USB output.
7. as claim 1 or 3 described computer fingerprint switches, it is characterized in that: described power module input connects battery and power interface.
8. computer fingerprint switch as claimed in claim 7 is characterized in that: described power interface is the big 4PIN power interface of corresponding computer power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200389435U CN201994926U (en) | 2011-02-15 | 2011-02-15 | Computer finger-print switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200389435U CN201994926U (en) | 2011-02-15 | 2011-02-15 | Computer finger-print switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994926U true CN201994926U (en) | 2011-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200389435U Expired - Fee Related CN201994926U (en) | 2011-02-15 | 2011-02-15 | Computer finger-print switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201994926U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103294116A (en) * | 2012-03-01 | 2013-09-11 | 丁诗林 | Computer with finger-print switch |
| CN106355070A (en) * | 2016-10-12 | 2017-01-25 | 防城港市港口区升聚科技有限公司 | Fingerprint identification based computer case |
-
2011
- 2011-02-15 CN CN2011200389435U patent/CN201994926U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103294116A (en) * | 2012-03-01 | 2013-09-11 | 丁诗林 | Computer with finger-print switch |
| CN106355070A (en) * | 2016-10-12 | 2017-01-25 | 防城港市港口区升聚科技有限公司 | Fingerprint identification based computer case |
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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 |
Granted publication date: 20110928 Termination date: 20150215 |
|
| EXPY | Termination of patent right or utility model |