CN2479149Y - Fingerprint lock with self-shutoff power circuit - Google Patents
Fingerprint lock with self-shutoff power circuit Download PDFInfo
- Publication number
- CN2479149Y CN2479149Y CN 01206479 CN01206479U CN2479149Y CN 2479149 Y CN2479149 Y CN 2479149Y CN 01206479 CN01206479 CN 01206479 CN 01206479 U CN01206479 U CN 01206479U CN 2479149 Y CN2479149 Y CN 2479149Y
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- Prior art keywords
- fingerprint lock
- chip microcomputer
- self
- flip
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to a fingerprint lock equipped with a self-cutting circuit of power, comprising a mono-card device 1, an electric-controlling lock 2 connected with the mono-card device 1, and an identification module 3. I or O ports of the mono-card device 1 is connected with a bi-stable trigger 4. Then output of the bi-stable trigger 4 is connected with operation ends of a transfer chip of direct current-direct current The utility model is simple in structure, low in costs, meager in self-exhaustion, stable in property, convenient in operation and efficient in energy consumption.
Description
The utility model is relevant with Fingerprint Lock.
Fingerprint Lock is to combine the advanced algorithm for recognizing fingerprint and the door lock of new generation of electronic technology.Compare with traditional door lock, Fingerprint Lock need not key and password, only needs the fingerprint of oneself directly to open the door, and does not have key loss or forgets the situation of password, and have high safety.
According to statistics, the Fingerprint Lock in running order time of every day only accounts for very little some, that is to say, the overwhelming majority time is in resting state.Power consumption during resting state is the pith of Fingerprint Lock power consumption so.
According to the comparison to present several on the market Fingerprint Lock performances, we find that all more than 1mA, such consumption is skimble-skamble to the quiescent current of all products.
Reducing the simplest method of quiescent dissipation is to increase a power switch, carries out opening door operation after the user closes a switch, manual again cut-off switch after unblanking.
But, easy as far as possible when the user wishes to operate Fingerprint Lock, when opening the door, only need, and should under the situation of not having artificial intervention, outage enter dormancy in the back system of opening the door by the button that once " opens the door ".
The purpose of this utility model provides a kind of simple in structure, and reliable operation is energy-conservation, and easy to use have the Fingerprint Lock of power supply from breaking circuit.
The utility model is achieved in that
The utility model is to have the Fingerprint Lock of power supply from breaking circuit.Comprise single-chip microcomputer 1, the electric control lock 2 that is connected with single-chip microcomputer, identification module 3, the I/O mouth of single-chip microcomputer 1 is connected with flip and flop generator 4, and the output of flip and flop generator 4 is connected with the Enable Pin of the switching DC-DC chip of DC-to-DC.
The utility model single-chip microcomputer is 89C2051 and approximate chip, and flip and flop generator 4 is CD4089, and the DC-DC chip can be TIP7101, and two I/O mouths of single-chip microcomputer are connected with two input ports of flip and flop generator 4 respectively.
The utility model single-chip microcomputer 1 is connected with man-machine interface 5, and said electric control lock is the Folysecu-FM2000 of precious sharp inscription company.
The utility model is simple in structure, and few from the peripheral Resistor-Capacitor Unit of breaking circuit, area occupied is little, and is cheap, and oneself power consumption is extremely low, and working stability is reliable, and is easy to use, cuts down the consumption of energy.
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is from the breaking circuit schematic diagram.
Following is embodiment of the present utility model:
As shown in Figure 1, grey color part is a main body of the present utility model among the figure, and is similar with the Fingerprint Lock product P olysecu-FM2000 main body of the precious sharp inscription in Xiamen company.We have increased power supply from turn-off function on the basis of main body.Therefore can build the utility model according to Polysecu-FM2000 with from breaking circuit fully.
A flip and flop generator is arranged in breaking circuit, and promptly this trigger has two stable states, overturns under the effect that adds trigger impulse.The output of trigger is as the enable signal/EN (then DC-DC is in running order in order to hang down for/EN) of DC-DC chip in the utility model, thus the on/off of control system operating circuit.
After the user presses " startup " button ,/EN step-down, the DC-DC chip wakes up from resting state, output 5V voltage-stabilized power supply, single-chip microcomputer is started working.Resetting, it is low then by software I/O mouth 1 to be put, and makes trigger remain on a stable state, and output remains low.The DC-DC continuous firing.During this period, the user is if press start button once more, and system still can operate as normal.
After system finishes once-through operation, by software the I/O mouth 2 of single-chip microcomputer to be put lowly, trigger overturns under the effect of this pulse, is output as height, and the Enable Pin of DC-DC is uprised, and enters resting state, thereby has cut off the power supply of operating circuit.In this case, whole system has only from breaking circuit and keeps power supply, by test, system when dormancy electric current less than 1 microampere.
This shows that this circuit is suitable for the Fingerprint Lock System that the most of the time is in resting state, particularly under battery powered situation, greatly reduced power consumption, prolonged battery application life.
Claims (3)
1, has the Fingerprint Lock of power supply from breaking circuit, comprise single-chip microcomputer (1), the electric control lock that is connected with single-chip microcomputer (2), identification module (3), the I/O mouth that it is characterized in that single-chip microcomputer (1) is connected with flip and flop generator (4), and the output of flip and flop generator 4 is connected with the Enable Pin of the conversion chip of DC-to-DC.
2, Fingerprint Lock according to claim 1 is characterized in that single-chip microcomputer is 89C22051, and flip and flop generator (4) is CD4098, and two I/O mouths of single-chip microcomputer are connected with two input interfaces of flip and flop generator (4) respectively.
3, Fingerprint Lock according to claim 1 is characterized in that single-chip microcomputer (1) is connected with man-machine interface (5), and said electric control lock is Folysecu one FM2000 of precious sharp inscription company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206479 CN2479149Y (en) | 2001-06-11 | 2001-06-11 | Fingerprint lock with self-shutoff power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206479 CN2479149Y (en) | 2001-06-11 | 2001-06-11 | Fingerprint lock with self-shutoff power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2479149Y true CN2479149Y (en) | 2002-02-27 |
Family
ID=33627105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01206479 Expired - Fee Related CN2479149Y (en) | 2001-06-11 | 2001-06-11 | Fingerprint lock with self-shutoff power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2479149Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318643A (en) * | 2014-08-28 | 2015-01-28 | 新东圳（苏州）智能科技有限公司 | Intelligent lock |
-
2001
- 2001-06-11 CN CN 01206479 patent/CN2479149Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318643A (en) * | 2014-08-28 | 2015-01-28 | 新东圳（苏州）智能科技有限公司 | Intelligent lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |