CN203192055U - an electronic lock - Google Patents

Abstract

The utility model provides an electronic lock which solves the problem that in the prior art, the fingerprint electronic lock is just unlocked by using fingerprint as a lock code. The electronic lock comprises a first controller for verifying the number and short message contents of a mobile phone and generating random code, a GSM (Global System for Mobile Communications) module, a keyboard for inputting the random code, a fingerprint instrument for recording the fingerprint and judging whether the fingerprint is correct or not, a second controller for outputting a second unlock signal according to the fingerprint judging signal and an electronic lock cylinder which unlocks or locks according to the first unlock signal or the second unlock signal. The electronic lock provided by the utility model further provides remote control function while the safety of universal fingerprint electronic lock is ensured, so that the operation mode of the electronic lock is diversified and safer.

Description

an electronic lock

technical field

The invention relates to the security field, in particular to an electronic lock. the

Background technique

The electronic lock has an anti-theft alarm function, which overcomes the shortcomings of the mechanical combination lock with less passwords and poor safety performance, and greatly improves the combination lock both in technology and performance. Among the existing electronic locks, there is an electronic lock that uses fingerprints as a password input, and the computer performs pattern recognition to control the unlocking, which is quite intelligent. However, the common fingerprint electronic locks on the market can only be unlocked by fingerprints. When the owner is not at home and relatives and friends need to enter in a hurry, the fingerprint electronic lock cannot be opened, which often brings us inconvenience; or when the owner's fingers are injured, The fingerprint electronic lock cannot be opened either. the

Contents of the invention

The invention provides an electronic lock, which solves the problem in the prior art that the fingerprint electronic lock can only be unlocked by using the fingerprint as the unlock password. the

Technical scheme of the present invention is realized like this:

An electronic lock, comprising: a first controller for verifying a mobile phone number and short message content and generating a random password, outputting a first unlocking signal; a GSM module, coupled to the first controller, receiving the signal sent by the mobile phone through a GSM network SMS, and the mobile phone number and content of the text message are sent to the first controller, and the random password generated by the first controller after verification is passed is sent to the mobile phone through the GSM network; the keyboard for inputting the random password , coupled to the input end of the first controller; a fingerprint instrument for entering fingerprints and judging whether the fingerprints are correct, outputting a fingerprint judging signal; a second controller outputting a second unlock signal according to the fingerprint judging signal; The first unlock signal or the second unlock signal unlocks or maintains the electronic lock cylinder in the locked state. the

Optionally, it also includes a first relay and a second relay; one end of the first relay is coupled to the first controller, and the other end is coupled to the electronic lock cylinder; one end of the second relay is coupled connected to the second controller, and the other end is coupled to the electronic lock cylinder. the

Optionally, a display screen for prompting the user to input the random password is also included. the

Optionally, the display screen is an LCD display screen. the

Optionally, it also includes an LED light group for displaying an unlocked shape when the electronic lock cylinder is unlocked, and an LED light group for displaying a locked shape when the electronic lock cylinder is in a closed state. the

Optionally, the first controller and the second controller are respectively STC89C51 single-chip microcomputers. the

Optionally, the RXD pin of the first controller is coupled to the TXD pin of the GSM module, and the TXD pin of the first controller is coupled to the RXD pin of the GSM module. the

Optionally, the RXD pin of the second controller is coupled to the TXD pin of the fingerprint device, and the TXD pin of the second controller is coupled to the RXD pin of the fingerprint device. the

Optionally, the keyboard is a matrix keyboard, and the 7 pins of the matrix keyboard are respectively coupled to pins P1.0 to P1.6 of the first controller. the

Optionally, the pin 1 of the first relay is coupled to the P2.7 pin of the first controller, and the negative pole of the first relay is coupled to the negative pole of the electronic lock cylinder; The pin 1 of the second relay is coupled to the P2.7 pin of the second controller, and the negative pole of the second relay is coupled to the negative pole of the electronic lock cylinder. the

The beneficial effects of the invention are: while ensuring the security of the universal fingerprint electronic lock, it also provides a remote control function, making the operation modes of the electronic lock more diverse and safer. the

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort. the

Fig. 1 is a circuit block diagram of an electronic lock of the present invention. the

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. the

As shown in Figure 1, the electronic lock of the present invention includes: a first controller 101, a second controller 102, a GSM (global system for mobile communications, Global System for Mobile Communications) module 103, a keyboard 104, a fingerprint device 105 and an electronic lock. Lock cylinder 106. the

The first controller 101 receives and verifies the mobile phone number and short message content from the GSM module 103, and if the verification is passed, generates a random password and sends it to the GSM module 103. The GSM module 103 is coupled to the first controller 101, receives the short message sent by the mobile phone through the GSM network, transmits the mobile phone number and the content of the short message to the first controller 101, and sends the random password generated by the first controller 101 through the GSM network to the phone. The keyboard 104 is coupled to the input end of the first controller 101, the user inputs a random password through the keyboard 104, and the first controller 101 compares the input random password with the generated random password, if the input random password is not the same as the first controller The random passwords generated by 101 are the same, then the first controller 101 outputs the first unlock signal to the electronic lock cylinder 106, and controls the electronic lock cylinder 106 to perform the unlocking operation; if the input random password is different from the random password generated by the controller 101, the electronic The lock cylinder 106 remains locked. The fingerprint of the user is pre-registered in the fingerprint device 105. When the user performs normal fingerprint entry and unlocking operations, the fingerprint device 105 judges whether the fingerprint is correct and outputs a fingerprint judgment signal, and the second controller 102 outputs a second unlock signal according to the fingerprint judgment signal. The electronic lock cylinder 106 controls the electronic lock cylinder 106 to unlock or maintain a locked state. the

For example, when the user is not at home, and relatives and friends need to enter the room in a hurry, the user sends the word "password" to the electronic lock of the present invention through his mobile phone, and the GSM module 103 receives the short message and transmits the mobile phone number and the content of the short message to the first lock. The controller 101 verifies, if the verification is passed, the first controller 101 generates a random password, which is sent to the mobile phone of the user through the GSM module 103, and the user only needs to tell relatives and friends the random password, and input the random password by the keyboard 104, if the random password imported If it is the same as the random password generated by the first controller 101, the door can be opened. In this way, while ensuring the security of the fingerprint electronic lock, a remote control function is also provided, so that the operation modes of the fingerprint electronic lock are diversified and safer. the

As shown in Figure 1, the electronic lock of the present invention also includes: a first relay 107 and a second relay 108, which are used to convert the control level output by the first controller 101 and the second controller 102 into an available electronic lock cylinder 106 level, one end of the first relay 107 is coupled to the first controller 101, the other end is coupled to the electronic lock cylinder 106, one end of the second relay 108 is coupled to the second controller 102, and the other end is coupled to the electronic Lock cylinder 106; The display screen 109 that is used to prompt the user to input random password, for example can be LCD display screen, after the first controller 101 verified mobile phone number and text message content success, display screen 109 shows " Please input the password ", and then The first controller 101 generates a random password and sends it to the user's mobile phone through the GSM module 103; the LED light group 110 for displaying the state of the electronic lock cylinder 106 displays an unlocked shape when the electronic lock cylinder 106 is unlocked, and when the electronic lock cylinder 106 is closed. The lock shape is displayed in the state; the power supply 111 provides appropriate electric energy to each circuit module of the electronic lock. the

Specifically, the first controller 101 and the second controller 102 of the electronic lock of the present invention are respectively STC89C51 single-chip microcomputers, and those skilled in the art may also choose other types of single-chip microcomputers or programmable logic controllers. The RXD pin of the first controller 101 is coupled to the TXD pin of the GSM module, and the TXD pin of the first controller 101 is coupled to the RXD pin of the GSM module. The RXD pin of the second controller 102 is coupled to the TXD pin of the fingerprint device 105 , and the TXD pin of the second controller 102 is coupled to the RXD pin of the fingerprint device 105 . The pin 1 of the first relay 107 is coupled to the P2.7 pin of the first controller, and the negative pole of the first relay 107 is coupled to the negative pole of the electronic lock cylinder 106 . The pin 1 of the second relay 108 is coupled to the P2.7 pin of the second controller 102 , and the negative pole of the second relay 108 is coupled to the negative pole of the electronic lock cylinder 106 . The keyboard 104 in Fig. 1 is a matrix keyboard, and the 6 pins of the matrix keyboard are respectively coupled to the P1.0 pin to the P1.6 pin of the first controller 101, and those skilled in the art can also select other types of keyboards To realize the function of random password input. The 8 pins of the LCD display 109 are respectively coupled to pins P2.0 to P2.7 of the first controller 101 . The anodes of the LED lamp group 110 are respectively coupled to the P1.7 pins of the first controller 101 and the second controller 102 . the

The electronic lock of the present invention not only ensures the security of the universal fingerprint electronic lock, but also provides a remote control function, so that the operation modes of the electronic lock are diversified and safer. the

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection. the

Claims (9)

1. an electronic lock is characterized in that, comprising:

First controller that is used for verifying phone number, short message content and generates random cipher is exported first unlocking signal;

Gsm module is couple to described first controller, receives the note that mobile phone sends by the GSM network, and phone number and short message content are sent to described first controller, and the random cipher that described first controller is generated sends to mobile phone by the GSM network;

Be used for importing the keyboard of described random cipher, be couple to the input end of described first controller;

Be used for the typing fingerprint and judge whether correct fingerprint instrument of fingerprint, the output fingerprint is judged signal;

Export second controller of second unlocking signal according to described fingerprint judgement signal;

Unblank or keep shutting the electronic lock cylinder of state according to described first unlocking signal or second unlocking signal.

2. electronic lock as claimed in claim 1 is characterized in that, also comprises first relay and second relay; One end of described first relay is couple to described first controller, and the other end is couple to described electronic lock cylinder; One end of described second relay is couple to described second controller, and the other end is couple to described electronic lock cylinder.

3. electronic lock as claimed in claim 2 is characterized in that, also comprises the display screen of importing described random cipher for the prompting user.

4. electronic lock as claimed in claim 3 is characterized in that, described display screen is LCD display.

5. electronic lock as claimed in claim 3 is characterized in that, also comprises showing the shape of unblanking when unblanking for electronic lock cylinder, showing the LED lamp group that shuts shape when electronic lock cylinder shuts state.

6. as each described electronic lock of claim 1 to 5, it is characterized in that described first controller and second controller are respectively the STC89C51 single-chip microcomputer.

7. electronic lock as claimed in claim 6 is characterized in that, the RXD pin of described first controller is couple to the TXD pin of gsm module, and the TXD pin of first controller is couple to the RXD pin of gsm module.

8. electronic lock as claimed in claim 7 is characterized in that, the RXD pin of described second controller is couple to the TXD pin of fingerprint instrument, and the TXD pin of second controller is couple to the RXD pin of fingerprint instrument.

9. electronic lock as claimed in claim 8 is characterized in that, described keyboard is matrix keyboard, and 7 pins of matrix keyboard are couple to the P1.0 pin of first controller respectively to the P1.6 pin.

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