CN203038349U - Electronic coded lock based on singlechip - Google Patents

Abstract

The utility model discloses an electronic password lock based on a single-chip microcomputer, which comprises a MSP430 single-chip microcomputer and a power supply battery, a crystal oscillator circuit connected with the MSP430 single-chip microcomputer, a reset circuit, a JATG interface circuit, a data storage circuit module, a touch-type liquid crystal display screen and a GSM Module, the input terminal of the MSP430 microcontroller is connected with a pickup, the output terminal of the MSP430 microcontroller is connected with a motor driver, LED driver circuit module and voice playback circuit module, the output terminal of the motor driver is connected with a DC motor, and the output terminal of the LED driver circuit module is connected with a The LED flashlight, the output terminal of the voice playing circuit module is connected with a power amplifier circuit module, and the output terminal of the power amplifier circuit module is connected with a loudspeaker. The utility model has the advantages of novel and reasonable design, convenient use and operation, fast unlocking speed, high working reliability, high safety performance, strong practicability, effective, safe and reliable anti-theft, and is convenient for popularization and use.

Description

An Electronic Combination Lock Based on SCM

technical field

The utility model relates to an electronic combination lock, in particular to an electronic combination lock based on a single-chip microcomputer.

Background technique

Along with the development of electronic technology, all kinds of electronic products arise at the historic moment, and electronic combination lock is exactly one of them. After the 1980s, with the emergence of electronic lock ASICs, the size of electronic locks was reduced, the reliability was improved, and the cost was high. It is also limited to a certain range and is difficult to popularize, so there has been no significant progress in its research. At present, in western developed countries, the combination lock technology is relatively advanced, and the types are complete. Electronic combination locks have been widely used in intelligent access control systems, and the management of the gates is realized through a variety of safer and more reliable technologies. The overall level of combination locks in our country is still around the 1970s in the world, and the cost of electronic combination locks is still very high, and the key electronic locks are still the main ones on the market, and the operation keyboard is used to input passwords and set new passwords. It is suitable for use in an environment with poor light, and it is inconvenient to use and operate. Moreover, its market structure has not yet been formed, its application is not widespread, and its safety performance is not good enough.

Utility model content

The technical problem to be solved by the utility model is to provide an electronic combination lock based on a single-chip microcomputer, which has a simple structure, novel and reasonable design, convenient installation and operation, fast unlocking speed and high working reliability in view of the above-mentioned deficiencies in the prior art. , high safety performance, strong practicability, effective, safe and reliable anti-theft, easy to popularize and use.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: an electronic combination lock based on a single-chip microcomputer, which is characterized in that: it includes a MSP430 single-chip microcomputer and a power supply battery for powering each power module in the electronic combination lock, and the MSP430 MCU connected crystal oscillator circuit, reset circuit, JATG interface circuit, data storage circuit module, touch-type liquid crystal display for password setting and input operation, and GSM module for short message communication with the user's mobile phone, the GSM module Connected with GSM antenna, the power supply battery is connected in series with a power switch in the power supply circuit of each power module in the electronic combination lock, the input terminal of the MSP430 single-chip microcomputer is connected with a pickup for collecting voice signals, the MSP430 single-chip microcomputer The output terminal is connected with a motor driver, an LED drive circuit module and a voice playback circuit module for sending out a voice alarm signal when multiple password input errors are made, and the output terminal of the motor driver is connected with a DC for driving the unlocking actuator to perform the unlocking action. The motor, the output terminal of the LED drive circuit module is connected with an LED flashlight for sending a flash alarm signal when multiple password input errors are made, the output terminal of the voice playback circuit module is connected with a power amplifier circuit module, and the power amplifier circuit module The output terminal of the module is connected with a speaker.

The above-mentioned electronic combination lock based on a single-chip microcomputer is characterized in that: the power supply battery is a lithium-ion rechargeable battery.

The above-mentioned electronic combination lock based on a single-chip microcomputer is characterized in that: the MSP430 single-chip microcomputer is a chip MSP430F247.

The above-mentioned electronic password lock based on a single-chip microcomputer is characterized in that: the data storage circuit module is a Flash data memory.

The above-mentioned electronic combination lock based on a single-chip microcomputer is characterized in that: the voice playback circuit module is mainly composed of a voice chip ISD1420.

Compared with the prior art, the utility model has the following advantages:

1. The utility model adopts a modular design, which is simple in structure, novel and reasonable in design, and convenient to realize.

2. The utility model is easy to install and use, and can be used for a long time after one installation.

3. The utility model adopts a touch-type liquid crystal display screen for password setting and password input operation, which has a high degree of humanization, and the password can be either a number or a character, or a combination of numbers and characters, which improves the security of the utility model .

4. The utility model adopts MSP430 single-chip microcomputer for data processing, low power consumption and fast data storage speed, which makes the utility model sensitive in response, fast in unlocking speed and high in working reliability, and uses lithium ion rechargeable battery for power supply, energy saving and environmental protection.

5. The utility model adopts three alarm methods of voice alarm, flash alarm and short message alarm, which further improves the safety of the utility model, and the voice alarm content can be changed at any time through recording, which is more flexible and convenient to use.

6. The utility model can store the alarm information in the data storage circuit module, which is convenient for users and the police to retrieve and check by operating the touch-type liquid crystal display in the future.

7. The utility model has strong practicability, can effectively, safely and reliably prevent theft, can be applied to occasions with high safety requirements, and is convenient for popularization and use.

In summary, the utility model has simple structure, novel and reasonable design, convenient installation and operation, fast unlocking speed, high working reliability, high safety performance, strong practicability, effective, safe and reliable anti-theft, and is convenient for popularization and use.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Fig. 1 is the block diagram of circuit principle of the utility model.

Explanation of reference signs:

1—MSP430 microcontroller; 2—power supply battery; 3—crystal oscillator circuit;

4—reset circuit; 5—JATG interface circuit; 6—data storage circuit module;

7—touch LCD screen; 8—GSM module; 9—GSM antenna;

10—power switch; 11—pickup; 12—motor driver;

13—LED drive circuit module; 14—voice playback circuit module;

15—DC motor; 16—LED flashlight;

17-power amplifier circuit module; 18-speaker.

Detailed ways

As shown in Figure 1, the utility model comprises MSP430 single-chip microcomputer 1 and the power supply battery 2 that is each electric module power supply in the electronic combination lock, and the crystal oscillator circuit 3 that joins with described MSP430 single-chip microcomputer 1, reset circuit 4, JATG interface circuit 5, data storage circuit module 6, the touch-type liquid crystal display screen 7 that is used for password setting and input operation and the GSM module 8 that is used to carry out short message communication with user's mobile phone, is connected with GSM line 9 on the described GSM module 8, described The power supply battery 2 is connected in series with a power switch 10 in the power supply circuit of each power consumption module in the electronic combination lock, and the input terminal of the MSP430 single-chip microcomputer 1 is connected with a pickup 11 for collecting voice signals, and the output terminal of the MSP430 single-chip microcomputer 1 is connected with There is a motor driver 12, an LED driver circuit module 13 and a voice playback circuit module 14 for sending a voice alarm signal when multiple password input errors are made. DC motor 15, the output terminal of described LED driving circuit module 13 is connected with the LED flashlight 16 that is used to send flashing alarm signal when multiple password input errors, and the output terminal of described voice playing circuit module 14 is connected with power amplification circuit module 17 , the output terminal of the power amplifying circuit module 17 is connected with a speaker 18 .

In this embodiment, the power supply battery 2 is a lithium-ion rechargeable battery. The MSP430 single-chip microcomputer 1 is a chip MSP430F247. The data storage circuit module 6 is a Flash data storage. The voice playback circuit module 14 is mainly composed of a voice chip ISD1420.

The working principle and working process of the utility model are: the user sets a password by operating the touch-type liquid crystal display 7, and the password can be a combination of numbers, characters and numbers and characters, and the MSP430 single-chip microcomputer 1 receives the set password and stores it in the data storage circuit module 6; the user enters the voice alarm signal that he wants to send when multiple password input errors are entered through the pickup 11, and the MSP430 single-chip microcomputer 1 collects the voice alarm signal and stores it in the data storage circuit module 6; when someone operates the touch-type liquid crystal display 7 When the password is input, the MSP430 single-chip microcomputer 1 receives the input password and compares it with the setting password stored in the data storage circuit module 6. When the input password is the same as the setting password, the MSP430 single-chip microcomputer 1 outputs the corresponding control signal to the DC motor 15 , control the rotation of the DC motor 15, and drive the unlocking actuator to perform the unlocking action. When the input password does not match the set password, the MSP430 single-chip microcomputer 1 controls the touch-screen LCD 7 to display a prompt "password input error", and records the number of errors. When the number of consecutive input errors exceeds 3 times, it is judged as malicious unlocking. At this time, the MSP430 single-chip microcomputer 1 controls the voice playing circuit module 14 to play the voice alarm signal stored in the data storage circuit module 6, and the voice played passes through the power amplifier circuit module 17. After being amplified, it will be played through the loudspeaker 18; at the same time, the MSP430 single-chip microcomputer 1 controls the LED driver circuit module 13 to drive the LED flashlight 16 to give a flash alarm, to give a voice and flash warning to the person who enters the password, and to remind the surrounding personnel that there is a suspicious unlocking phenomenon here In addition, the MSP430 single-chip microcomputer 1 will also send the alarm signal to the user's mobile phone through the GSM module 8 and the GSM antenna 9 to remind the user to check or report to the scene in time; the MSP430 single-chip microcomputer 1 can also store the alarm information in the data storage circuit module 6 Among them, it is convenient for users and the police to retrieve and check by operating the touch-type liquid crystal display 7 in the future.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (5)

1. An electronic combination lock based on a single-chip microcomputer, characterized in that: it includes a MSP430 single-chip microcomputer (1) and a power supply battery (2) for supplying power to each power module in the electronic combination lock, and is connected to the MSP430 single-chip microcomputer (1) Crystal oscillator circuit (3), reset circuit (4), JATG interface circuit (5), data storage circuit module (6), touch-type liquid crystal display (7) for password setting and input operation, and for communicating with the user's mobile phone A GSM module (8) for short message communication, the GSM module (8) is connected with a GSM antenna (9), and the power supply battery (2) is connected in series with a power supply in the power supply circuit for each power module in the electronic combination lock switch (10), the input terminal of the MSP430 single-chip microcomputer (1) is connected with a pickup (11) for collecting voice signals, and the output terminal of the MSP430 single-chip microcomputer (1) is connected with a motor driver (12), an LED drive circuit module ( 13) and a voice playback circuit module (14) for sending out a voice alarm signal when the password is entered incorrectly for many times, and the output terminal of the motor driver (12) is connected with a DC motor (15) for driving the unlocking actuator to perform the unlocking action ), the output terminal of the LED driving circuit module (13) is connected with an LED flashlight (16) for sending a flashing alarm signal when the password is entered incorrectly for many times, and the output terminal of the voice playback circuit module (14) is connected with power An amplifying circuit module (17), the output terminal of the power amplifying circuit module (17) is connected with a speaker (18). 2. The electronic combination lock based on a single-chip microcomputer according to claim 1, characterized in that: the power supply battery (2) is a lithium-ion rechargeable battery. 3. An electronic combination lock based on a single-chip microcomputer according to claim 1, wherein the MSP430 single-chip microcomputer (1) is a chip MSP430F247. 4. The electronic combination lock based on a single-chip microcomputer according to claim 1, characterized in that: the data storage circuit module (6) is a Flash data storage. 5. An electronic combination lock based on a single-chip microcomputer according to claim 1, characterized in that: the voice playback circuit module (14) is mainly composed of a voice chip ISD1420.

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