CN205558532U - Electronic password lock - Google Patents
Electronic password lock Download PDFInfo
- Publication number
- CN205558532U CN205558532U CN201620007488.5U CN201620007488U CN205558532U CN 205558532 U CN205558532 U CN 205558532U CN 201620007488 U CN201620007488 U CN 201620007488U CN 205558532 U CN205558532 U CN 205558532U
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- triode
- dsp
- circuit
- lock
- utility
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Abstract
The utility model discloses an electronic password lock, including DSP, DSP's input and matrix keyboard, UPS power, AT24C02 memory and serial ports show circuit connection, DSP's output and matrix keyboard locking circuit, warning circuit, unlocking control circuit and indicating circuit are connected, the unlocking control circuit includes triode T10, DSP's output and triode T10's base are connected, and triode T10's projecting pole and triode T11's base are connected, triode T11's emitter ground, and triode T11's collecting electrode passes through the electromagnetic lock to be connected with the power, connect in parallel and have anti -parallel diode and electric capacity in the both ends of electromagnetic lock, triode T10's collecting electrode passes through resistance R1 and emitting diode D5 power connection. The utility model discloses the security is high.
Description
Technical field
The utility model relates to a kind of lock, relates more specifically to a kind of electronic password lock.
Background technology
Raising along with people's living standard, especially prominent how realizing that this problem of home security also becomes, traditional mechanical lock due to its construct simple, the event prized is of common occurrence, electronic password lock is that one comes control circuit or chip operation (access control system) by Password Input, thus control the Guan Bi of mechanical switch, complete to unblank, the electronic product of locking task.Electronic lock is high due to its confidentiality, uses flexibility good, and safety coefficient is high, receives the parent of users.
Utility model content
For the defect of prior art, the utility model provides a kind of electronic password lock.
A kind of electronic password lock, including DSP, the input of described DSP and matrix keyboard, ups power, AT24C02 memory and serial ports display circuit connect, the output of described DSP and matrix keyboard lock-in circuit, warning circuit, control circuit of unblanking and indicating circuit connect, described control circuit of unblanking includes triode T10, the output of described DSP is connected with the base stage of triode T10, the emitter stage of triode T10 is connected with the base stage of triode T11, the grounded emitter of triode T11, the colelctor electrode of triode T11 is connected with power supply by electromagnetic lock, the two ends of described electromagnetic lock are parallel with anti-paralleled diode and electric capacity, the colelctor electrode of described triode T10 connects power supply by resistance R1 and light emitting diode D5.
The beneficial effects of the utility model are: confidentiality is high, use flexibility good, and safety coefficient is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model electronic password lock；
Fig. 2 is that the utility model is unblanked the circuit diagram of controlling organization.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in detail, makes above and other purpose of the present utility model, feature and advantage to become apparent from.The part that reference instruction identical in whole accompanying drawings is identical.Accompanying drawing the most drawn to scale, it is preferred that emphasis is illustrate purport of the present utility model.
Such as Fig. 1, shown in 2, a kind of electronic password lock, including DSP, the input of described DSP and matrix keyboard, ups power, AT24C02 memory and serial ports display circuit connect, the output of described DSP and matrix keyboard lock-in circuit, warning circuit, control circuit of unblanking and indicating circuit connect, described control circuit of unblanking includes triode T10, the output of described DSP is connected with the base stage of triode T10, the emitter stage of triode T10 is connected with the base stage of triode T11, the grounded emitter of triode T11, the colelctor electrode of triode T11 is connected with power supply by electromagnetic lock, the two ends of described electromagnetic lock are parallel with anti-paralleled diode and electric capacity, the colelctor electrode of described triode T10 connects power supply by resistance R1 and light emitting diode D5.
10 numerical keys are used for inputting password, other 6 function keys respectively: CLR, EN, F1, F2, F3, F4.Wherein the function of CLR key is when inputting code error when, and the data inputted before removing are re-entered.The function of EN key is to confirm the password of input.F1 is management mode switch key, when three input passwords of user's imprudence all do not have correctly, and keyboard is locked, and just can start management mode this time, uses the password of keeper to open the door.F2 is used to enter the state of Modify password.F3 is used for closing display, and one can save electricity, is additionally also possible to prevent lawless person's snooping password.F4 is used for making electric bell.The display circuit of native system design is in order to arrange with prompting to user.In view of the mouth resource in order to save DSP, the display of native system uses the mode of series display, only uses the dual serial mouth of DSP, it is possible to complete the display function of DSP.The effect of power down memory cell is power supply disconnects when, the current unit price information set of storage.AT24C02 is the electric erasable storage chip of the 2KB byte of atmel corp, uses bus and the DSP communication of two-wire serial, and voltage is minimum can arrive 2.5V.Give executing agency of unblanking, circuit drives electromagnetic lock adhesive by DSP, thus reach the purpose unblanked.When the password of user's input correctly and is that (domestic consumer requires to input correct password in 12s in the time of regulation, keeper requires at the 5s correct password of input) if input, DSP just exports enabling signal, deliver to opening drive circuit, then drive electromagnetic lock, reach the purpose opened the door.Circuit drives and two-stage composition of unblanking.Being formed drive circuit by D5, R1, triode T10, wherein triode T10 can select common low-power transistor such as 9014,9018 can meet requirement.D5 is as the prompting unblanked；Circuit of unblanking is formed by D6, C24, triode T11.Wherein D6, C24 are to eliminate the issuable reverse high voltage of electromagnetic lock and issuable electromagnetic interference.Triode T11 can be selected for the triode such as 8050 of middle power, and the selection of electromagnetic lock to depend on the circumstances, but the suction-combining force is wanted enough and by certain surplus.
Elaborate a lot of detail in the above description so that fully understanding the utility model.But above description is only preferred embodiment of the present utility model, the utility model can be implemented to be much different from alternate manner described here, and therefore the utility model is not limited by disclosed above being embodied as.The most any those skilled in the art are without departing under technical solutions of the utility model ambit, technical solutions of the utility model are made many possible variations and modification by the method and the technology contents that all may utilize the disclosure above, or are revised as the Equivalent embodiments of equivalent variations.Every content without departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within the range of technical solutions of the utility model protection.
Claims (1)
1. an electronic password lock, it is characterized in that, including DSP, the input of described DSP and matrix keyboard, ups power, AT24C02 memory and serial ports display circuit connect, the output of described DSP and matrix keyboard lock-in circuit, warning circuit, control circuit of unblanking and indicating circuit connect, described control circuit of unblanking includes triode T10, the output of described DSP is connected with the base stage of triode T10, the emitter stage of triode T10 is connected with the base stage of triode T11, the grounded emitter of triode T11, the colelctor electrode of triode T11 is connected with power supply by electromagnetic lock, the two ends of described electromagnetic lock are parallel with anti-paralleled diode and electric capacity, the colelctor electrode of described triode T10 connects power supply by resistance R1 and light emitting diode D5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620007488.5U CN205558532U (en) | 2016-01-04 | 2016-01-04 | Electronic password lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620007488.5U CN205558532U (en) | 2016-01-04 | 2016-01-04 | Electronic password lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205558532U true CN205558532U (en) | 2016-09-07 |
Family
ID=56823870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620007488.5U Expired - Fee Related CN205558532U (en) | 2016-01-04 | 2016-01-04 | Electronic password lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205558532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066361A (en) * | 2018-09-13 | 2018-12-21 | 国网黑龙江省电力有限公司七台河供电公司 | Power distribution cabinet capable of self-protection |
-
2016
- 2016-01-04 CN CN201620007488.5U patent/CN205558532U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066361A (en) * | 2018-09-13 | 2018-12-21 | 国网黑龙江省电力有限公司七台河供电公司 | Power distribution cabinet capable of self-protection |
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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: 20160907 Termination date: 20170104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |