CN202995853U - Intelligent electronic coded lock - Google Patents
Intelligent electronic coded lock Download PDFInfo
- Publication number
- CN202995853U CN202995853U CN 201220630173 CN201220630173U CN202995853U CN 202995853 U CN202995853 U CN 202995853U CN 201220630173 CN201220630173 CN 201220630173 CN 201220630173 U CN201220630173 U CN 201220630173U CN 202995853 U CN202995853 U CN 202995853U
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- coded lock
- intelligent electronic
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Abstract
The utility model discloses an intelligent electronic coded lock. The intelligent electronic coded lock comprises a password input circuit, a central processing unit (CPU) and a power module, the password input circuit is used for setting and inputting a password, the CPU is used for comparing an output password of the password input circuit with a preset password and performing corresponding processing, an input end of the CPU is connected with a clock circuit and a reset circuit, an output end of the CPU is connected with a display circuit, an alarm circuit, an unlocking circuit and a password storing circuit, the unlocking circuit is used for achieving unlocking function when a password input by a user is correct, the password storing circuit is used for reading a new password at any time and provided with a power down protection function, the unlocking circuit is connected with an unlocking motor, a power circuit utilizes three sections of voltage regulator LM7805, the clock circuit utilizes a 12MHz crystal oscillator and a 1pF capacitor, the reset circuit utilizes manual reset, the display circuit utilizes a light emitting diode (LED) nixie tube, and the password storing circuit utilizes AT24C02 as an electrically erasable programmable read-only memory (EEPROM) chip. The intelligent electronic coded lock has the advantages that the structural design is reasonable, the size is small, costs are low, the controlling is flexible, the productization is facilitated, and repeated trying can be prevented.
Description
Technical field
The utility model relates to a kind of coded lock, particularly relates to a kind of Intelligent electronic coded lock.
Background technology
Along with the raising of people's living standard and the reinforcement of awareness of safety, also just more and more higher to the requirement of safety.Traditional lockset know-why is too simple, does not possess real anti-theft feature, so the New Times has proposed the requirement of the necessary revolution of lockset.Along with the develop rapidly of electronic technology, the appearance of coded lock has improved locks to get security.In the safety technological guard field, making the electronic cipher control system is all greatly to have improved a step technically or on performance, and the relevant departments of numerous countries constantly propose electronic password lock and get concept.Because common coded lock number of password is few, poor safety performance even easily by the voice of repeatedly souning out and decoding, is still waiting further raising so must study for coded lock.Intelligent for introducing both at home and abroad at present, the research of the coded lock of the function of analysis expert system is also few.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of Intelligent electronic coded lock is provided.This Intelligent electronic coded lock reasonable in design, volume is little, cost is low, control is flexible, be convenient to commercialization, can prevent from repeatedly souning out, and has effectively overcome above-mentioned shortcoming, is convenient to promote the use of.
for achieving the above object, the technical solution adopted in the utility model is: a kind of Intelligent electronic coded lock, it is characterized in that: comprise be used to the Password Input circuit of realizing password setting and input, be used for according to the output password of Password Input circuit with set in advance password relatively and make the CPU of respective handling and the power module that power supply is provided for each power unit of native system, the input end of described CPU is connected to the clock circuit that is used to CPU that time reference is provided and the reset circuit that is used for realizing the system reset function, the output terminal of described CPU is connected to for the display circuit that shows CPU output data, be used for adopting piezo buzzer to produce the warning circuit of buzz when the alert signal is arranged, be used in the situation that the user inputs the correct unlock circuit of unlocking function and the password memory circuit that is used for reading at any time new password and has power-down protection realized of password, described unlock circuit joins with the motor of unblanking, described power circuit adopts three sections voltage stabilizer LM7805, described clock circuit adopts 12MHz crystal oscillator and 1pF electric capacity, described reset circuit adopts hand-reset, described display circuit adopts the LED charactron, described password memory circuit adopts AT24C02 as eeprom chip.
Above-mentioned a kind of Intelligent electronic coded lock is characterized in that: described Password Input circuit comprises 4 * 4 matrix keyboards.
Above-mentioned a kind of Intelligent electronic coded lock is characterized in that: described CPU adopts the AT89C58RD+ chip of atmel corp.
Above-mentioned a kind of Intelligent electronic coded lock is characterized in that: described unlock circuit comprises relay.
The utility model compared with prior art has the following advantages:
1, reasonable in design: the utility model comprises power circuit, clock circuit, reset circuit, Password Input circuit, CPU, display circuit, warning circuit, unlock circuit, password memory circuit, reasonable in design.
2, good confidentiality: the utility model has adopted 6 passwords, and decoding rate at random is low, and in the situation that password may be revealed in time change password, avoids locking to such an extent that security descends because the special circumstances such as personnel's replacement make.
3, crack protection: the utility model has used the Password Input arbitration functions on software, and continuous three input password mistakes a period of time that will lock the keypad, warning system starts automatically.
4, volume is little, cost is low: the utility model uses single-chip microcomputer as the microcontroller device, has greatly reduced volume and cost.
5, easy and simple to handle: the utility model hommization simple to operate, failure rate is low, Password Input is easy and simple to handle.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present utility model.
Description of reference numerals:
1-power circuit; 2-clock circuit; 3-reset circuit;
4-Password Input circuit; 5-CPU; 6-display circuit;
7-warning circuit; 8-unlock circuit; 9-password memory circuit;
10-the motor of unblanking.
Embodiment
a kind of Intelligent electronic coded lock as shown in Figure 1, comprise be used to the Password Input circuit 4 of realizing password setting and input, be used for according to the output password of Password Input circuit 4 with set in advance password relatively and make the CPU5 of respective handling and the power module 1 that power supply is provided for each power unit of native system, the input end of described CPU5 is connected to the clock circuit 2 that is used to CPU5 that time reference is provided and the reset circuit 3 that is used for realizing the system reset function, the output terminal of described CPU5 is connected to for the display circuit 6 that shows CPU5 output data, be used for adopting piezo buzzer to produce the warning circuit 7 of buzz when the alert signal is arranged, be used in the situation that the user inputs the correct unlock circuit 8 of unlocking function and the password memory circuit 9 that is used for reading at any time new password and has power-down protection realized of password, described unlock circuit 8 joins with the motor 10 of unblanking, described power circuit 1 adopts three sections voltage stabilizer LM7805, described clock circuit 2 adopts 12MHz crystal oscillator and 1pF electric capacity, described reset circuit 3 adopts hand-reset, described display circuit 6 adopts the LED charactron, described password memory circuit 9 adopts AT24C02 as eeprom chip.
In the present embodiment, described Password Input circuit 4 comprises 4 * 4 matrix keyboards.Described CPU5 adopts the AT89C58RD+ chip of atmel corp.Described unlock circuit 8 comprises relay.Described unlock circuit 8 adopts the conducting of high power transistor, adhesive, the disconnection of cut-off pilot relay, and further drive fractional motor and unblank,
The course of work of the present utility model is: the power circuit 1 of Intelligent electronic coded lock for the power supply of system modules after, system is in the keyboard scan state, the flicker of program run indicator shows that system moves that all are normal.The space that 6 bytes are set in program is deposited password and 6 bytes of setting and is deposited the data of keyboard input.Under system's normal operating condition, if by Password Input circuit 4 input number keyboards (1～9), system relatively just can judge the correctness of input password by turn according to the input data that read and predefined password, the password of Password Input circuit 4 inputs and the password of setting are compared, if password is correct, control transistor saturation conduction, relay adhesive by the high/low level of CPU5 pin output, driving motor 10 running of unblanking, electronic lock is opened; Otherwise, when input password mistake, Password Input number of times counting unit is counted, if do not reach 3 times, return to Password Input circuit 4 scanning modes, if number of times has reached 3 times, start warning circuit, control piezo buzzer by the high/low level of CPU5 pin output and send the buzz warning, effectively prevented the possibility that breaks a code because repeatedly souning out.When three input errors of password, system enters deadlock state, can jump out this state by " reset key ".Initial password is 123456, after only having lock to be opened, after the user presses " key is set ", just can carry out password and revise action.The password update routine requires new password input twice, and program compares twice password, if consistent, replaces original password with this password, if inconsistent, repetitive operation, the randomness of so just having avoided password to revise.
The above; it is only preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solutions of the utility model.
Claims (4)
1. Intelligent electronic coded lock, it is characterized in that: comprise be used to the Password Input circuit (4) of realizing password setting and input, be used for according to the output password of Password Input circuit (4) with set in advance password relatively and make the CPU(5 of respective handling) and power module (1) that power supply is provided for each power unit of native system, described CPU(5) input end is connected to and is used to CPU(5) clock circuit (2) of time reference is provided and is used for realizing the reset circuit (3) of system reset function, described CPU(5) output terminal is connected to for showing CPU(5) display circuit (6) of output data, be used for adopting piezo buzzer to produce the warning circuit (7) of buzz when the alert signal is arranged, be used in the situation that the user inputs the correct unlock circuit (8) of unlocking function and the password memory circuit (9) that is used for reading at any time new password and has power-down protection realized of password, described unlock circuit (8) joins with the motor (10) of unblanking, described power circuit (1) adopts three sections voltage stabilizer LM7805, described clock circuit (2) adopts 12MHz crystal oscillator and 1pF electric capacity, described reset circuit (3) adopts hand-reset, described display circuit (6) adopts the LED charactron, described password memory circuit (9) adopts AT24C02 as eeprom chip.
2. a kind of Intelligent electronic coded lock according to claim 1, it is characterized in that: described Password Input circuit (4) comprises 4 * 4 matrix keyboards.
3. a kind of Intelligent electronic coded lock according to claim 1, is characterized in that: the AT89C58RD+ chip that described CPU(5) adopts ATMEL company.
4. a kind of Intelligent electronic coded lock according to claim 1, it is characterized in that: described unlock circuit (8) comprises relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220630173 CN202995853U (en) | 2012-11-25 | 2012-11-25 | Intelligent electronic coded lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220630173 CN202995853U (en) | 2012-11-25 | 2012-11-25 | Intelligent electronic coded lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202995853U true CN202995853U (en) | 2013-06-12 |
Family
ID=48567001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220630173 Expired - Fee Related CN202995853U (en) | 2012-11-25 | 2012-11-25 | Intelligent electronic coded lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202995853U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756441A (en) * | 2016-05-06 | 2016-07-13 | 中国工程物理研究院电子工程研究所 | In-situ sputtering type single trial-unlocking solid state coded lock |
| CN105804519A (en) * | 2016-05-06 | 2016-07-27 | 中国工程物理研究院电子工程研究所 | In-situ welding type one-time trial opening solid-state coded lock |
| CN106373227A (en) * | 2016-08-28 | 2017-02-01 | 姜俊 | Housing estate door control system |
-
2012
- 2012-11-25 CN CN 201220630173 patent/CN202995853U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756441A (en) * | 2016-05-06 | 2016-07-13 | 中国工程物理研究院电子工程研究所 | In-situ sputtering type single trial-unlocking solid state coded lock |
| CN105804519A (en) * | 2016-05-06 | 2016-07-27 | 中国工程物理研究院电子工程研究所 | In-situ welding type one-time trial opening solid-state coded lock |
| CN106373227A (en) * | 2016-08-28 | 2017-02-01 | 姜俊 | Housing estate door control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131125 |