CN202284415U - Control chip of coded lock - Google Patents
Control chip of coded lock Download PDFInfo
- Publication number
- CN202284415U CN202284415U CN2011201922164U CN201120192216U CN202284415U CN 202284415 U CN202284415 U CN 202284415U CN 2011201922164 U CN2011201922164 U CN 2011201922164U CN 201120192216 U CN201120192216 U CN 201120192216U CN 202284415 U CN202284415 U CN 202284415U
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- China
- Prior art keywords
- coded lock
- control chip
- circuit
- lock control
- control
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a control chip of a coded lock, comprising an oscillation clock circuit which is used for providing clock signals for the internal part of the control chip of the coded lock, a dormancy control circuit which is used for the dormancy control and waking up when the control chip of the coded lock is not working, a keyboard interface circuit which is used for the input of external buttons of the control chip of the coded lock, an E2PROM used for storing user password, a RAM circuit used for the temporary storage of internal data of the control chip of the coded lock, a control logic circuit used for password check and output control, and a low voltage detection circuit used for detecting the falling down of voltage of outer power supply source of the control chip of the coded lock. The control chip of a coded lock is advantageous in that peripheral devices are in small amount; programming is simple; debugging is easy; reliability is strong; the control chip is suitable for popularization and application.
Description
Technical field
The utility model relates to the VLSI Design technical field, relates in particular to a kind of coded lock control chip.
Background technology
Coded lock is a kind of of lock, and what use during unlatching is a series of numeral or symbol.The password of coded lock all is to arrange but not real combination usually.The partial password lock only uses a rotating disk, several video discs or the cam rotation in the lock; Also some coded lock be rotate one group several be carved with the thumb wheel circle of numeral, directly drive the machinery of lock inside.
At present, mostly the coded lock control circuit is to adopt single-chip microcomputer to be equipped with the realization of respective peripheral circuit, exists peripheral components many, and programming is complicated, shortcomings such as debug difficulties, poor reliability.
The utility model content
The utility model technical problem to be solved is: mostly Current Password lockset control circuit is to adopt single-chip microcomputer to be equipped with the realization of respective peripheral circuit, exists peripheral components many, and programming is complicated, shortcomings such as debug difficulties, poor reliability.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of coded lock control chip, it comprises:
The running clock circuit is used for clock signal to coded lock control chip inside being provided;
The dormancy control circuit, dormancy control and work wake up when being used for the coded lock control chip and not working;
Keyboard interface circuit is used for the input of coded lock control chip external key;
EEPROM (Electrically Erasable Programmable Read-Only Memory is called for short E2PROM) is used for the storage of user cipher;
Random access memory (Random Access Memory is called for short RAM) circuit, it is temporary to be used for coded lock control chip internal data;
Control logic circuit, be used for cryptographic core to and output control; And
Low-voltage detection circuit is used to detect coded lock control chip externally fed supply voltage and falls.
Further, said keyboard interface circuit provides 7 interfaces, is used to receive external signal.
Further, said control logic circuit provides 3 interfaces, is used to receive external signal.
Further, said control logic circuit provides 4 interfaces, is used to export signal.
Further, said low-voltage detection circuit detects external battery voltage and crosses the indication of can reporting to the police when hanging down.
Further, said low-voltage detection circuit provides 1 interface, is used to export signal.
The beneficial effect of the utility model is:
A kind of coded lock control chip is provided, and peripheral components is few, and programming is simple, and debugging is easy, and good reliability is suitable for applying.
Description of drawings
Fig. 1 is the embodiment module diagram of a kind of coded lock control chip of the utility model;
Fig. 2 is the embodiment pin sketch map of a kind of coded lock control chip of the utility model;
Fig. 3 uses sketch map for the embodiment of a kind of coded lock control chip of the utility model.
The specific embodiment
Specify the preferred embodiment of the utility model below in conjunction with accompanying drawing.
See also Fig. 1, it is the embodiment module diagram of a kind of coded lock control chip of the utility model.
A kind of coded lock control chip of the utility model, it comprises: running clock circuit 11, dormancy control circuit 12, keyboard interface circuit 13, E2PROM14, RAM circuit 15, control logic circuit 16 and low-voltage detection circuit 17.
Wherein, running clock circuit 11 is connected with E2PROM14 with dormancy control circuit 12, keyboard interface circuit 13 respectively.Keyboard interface circuit 13 is connected with control logic circuit 16 with RAM circuit 15 respectively.RAM circuit 15 is connected with control logic circuit 16 with E2PROM14 respectively.
E2PROM14 is used for the storage of user cipher.In the present embodiment, E2PROM14 can store 2 groups of user ciphers.
Low-voltage detection circuit 17 is used to detect coded lock control chip externally fed supply voltage and falls.In the present embodiment, low-voltage detection circuit 17 detects external battery voltage and crosses the indication of can reporting to the police when hanging down, and in addition, low-voltage detection circuit 17 provides 1 interface O4, is used to export signal.
See also Fig. 2, it is the embodiment pin sketch map of a kind of coded lock control chip of the utility model.
In the present embodiment, a kind of coded lock control chip comprises 16 pins.
Wherein, the interface P1～P7 of pin 1～7 corresponding input type.The function of pin 1～7 is:
(1) corresponding 3X4 keyboard input;
(2) arbitrary key input wakes chip up from park mode, does not have the operation chip and gets into park mode in 20 seconds;
(3) password setting
Administrator password: double-click " 0 " key, again by " P9 " key, the setting of beginning administrator password, input 1～9 any 8 figure place passwords are confirmed by " # " key;
Personal identification number: directly by " P9 " key, the setting of beginning personal identification number, input 0～9 any 3～8 figure place passwords are confirmed by " # " key;
In above-mentioned password input process, can re-enter by the deletion of " * " key if input by mistake.
The password default that dispatches from the factory is " 159 ".
(4) password input
By 1～9 key input password, confirm by " # " key.In the password input process, can re-enter by the deletion of " * " key if input by mistake.3 input errors of password, locked 1 minute of keyboard, and report to the police.
The interface P8 of pin 9 corresponding input types.The function of pin 9 is: the anti-theft signal input, high level is effective, and is inner drop-down.
The interface P9 of pin 10 corresponding input types.The function of pin 10 is: administrator password, personal identification number are provided with the input button.
The interface O5 of pin 11 corresponding output types.The function of pin 11 is: by * key control burglar alarm whether, if press the * key, alarm signal is arranged then, antitheft input high level, the output high level 20 seconds (connecing loudspeaker) of reporting to the police, 3 input errors of password, loudspeaker output high level 5 seconds.
The interface Vdd of pin 16 corresponding input types.The function of pin 16 is: connect power supply.
The interface Gnd of pin 8 corresponding input types.The function of pin 8 is: ground connection.
The interface O1 of pin 15 corresponding output types.The function of pin 15 is: button indication output specifically describes as follows:
When (1) password was imported, button was pressed the output high level, unclamps output low level; The correct output of input high level continues 1 second, transfers low level to;
(2) during password setting, be provided with and begin to export high level, wherein whenever press low level of primary key output, do not have key to export high level on time, the completion output low level is set;
(3) burglar alarm output high level is 20 seconds;
(4) 3 input errors of password, output high level 5 seconds.
The interface O2 of pin 14 corresponding output types.The function of pin 14 is: under-voltage indication, output high level when under-voltage, under-voltage point: 4.5V.
The interface O3 of pin 13 corresponding output types.The function of pin 13 is: buzzer output specifically describes as follows:
(1) password input error is reported to the police and was exported high level 2 seconds; 3 input errors of password are reported to the police and were exported high level 5 seconds;
(2) password setting is correct, 1 second-low level of output high level, continuous 2 times;
(3) report to the police output high level 2 seconds of password setting mistake (comprise in the password 0 or figure place not enough);
(4) the password input is correct, 1 second-low level of output high level, continuous 2 times;
(5) during password setting, ring two, has rung and begin to be provided with password, whenever press primary key loud one, do not ring when having button by the intact key buzzer that is provided with;
(6) burglar alarm output high level is 20 seconds.
The interface O4 of pin 12 corresponding output types.The function of pin 12 is: the control output of opening the door, and the password input is correct, and the output high level transferred low level in 5 seconds to.
See also Fig. 3, it is that the embodiment of a kind of coded lock control chip of the utility model uses sketch map.
The pin 1～7 of coded lock control chip is linking number keyboard 0～9 respectively, and * and # key.Pin 8 ground connection.
The effect of having a mind to of the utility model is: be mostly to adopt single-chip microcomputer to be equipped with the respective peripheral circuit to Current Password lockset control circuit and realize that exist peripheral components many, programming is complicated; Shortcoming such as debug difficulties, poor reliability provides a kind of coded lock control chip, and peripheral components is few; Programming is simple; Debugging is easy, and good reliability is suitable for applying.
Here description of the utility model and application is illustrative, is not to want the scope of the utility model is limited in the above-described embodiments.Here the distortion of the embodiment that is disclosed and change are possible, and the replacement of embodiment is known with the various parts of equivalence for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation of spirit that does not break away from the utility model or substantive characteristics, and the utility model can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the utility model scope and spirit, can carry out other distortion and change here to the embodiment that is disclosed.
Claims (6)
1. a coded lock control chip is characterized in that, comprising:
The running clock circuit is used for clock signal to coded lock control chip inside being provided;
The dormancy control circuit, dormancy control and work wake up when being used for the coded lock control chip and not working;
Keyboard interface circuit is used for the input of coded lock control chip external key;
E2PROM is used for the storage of user cipher;
The RAM circuit, it is temporary to be used for coded lock control chip internal data;
Control logic circuit, be used for cryptographic core to and output control; And
Low-voltage detection circuit is used to detect coded lock control chip externally fed supply voltage and falls.
2. a kind of coded lock control chip according to claim 1 is characterized in that said keyboard interface circuit provides 7 interfaces, is used to receive external signal.
3. a kind of coded lock control chip according to claim 1 is characterized in that said control logic circuit provides 3 interfaces, is used to receive external signal.
4. a kind of coded lock control chip according to claim 1 is characterized in that said control logic circuit provides 4 interfaces, is used to export signal.
5. a kind of coded lock control chip according to claim 1 is characterized in that, said low-voltage detection circuit detects external battery voltage and crosses the indication of can reporting to the police when hanging down.
6. a kind of coded lock control chip according to claim 1 is characterized in that said low-voltage detection circuit provides 1 interface, is used to export signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201922164U CN202284415U (en) | 2011-06-09 | 2011-06-09 | Control chip of coded lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201922164U CN202284415U (en) | 2011-06-09 | 2011-06-09 | Control chip of coded lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284415U true CN202284415U (en) | 2012-06-27 |
Family
ID=46295942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201922164U Expired - Lifetime CN202284415U (en) | 2011-06-09 | 2011-06-09 | Control chip of coded lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242584A (en) * | 2011-06-09 | 2011-11-16 | 奉化诚兴道电子科技有限公司 | Control chip of coded lock |
-
2011
- 2011-06-09 CN CN2011201922164U patent/CN202284415U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242584A (en) * | 2011-06-09 | 2011-11-16 | 奉化诚兴道电子科技有限公司 | Control chip of coded lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120627 Effective date of abandoning: 20130703 |
|
| RGAV | Abandon patent right to avoid regrant |