CN106846589A - A kind of mobile phone A PP and single-chip computer control system based on bluetooth - Google Patents

Abstract

The invention discloses a bluetooth-based mobile phone APP and a single-chip microcomputer control system, including a single-chip microcomputer system and a bluetooth module respectively connected to it, a password digit control button, a password sending button, a reset button, and an indication for detecting the working state of the entire system Lights, electromagnetic lock system and alarm system, the APP terminal is connected with the Bluetooth module by entering the password. The user of the present invention can choose the encryption mode by himself. For different users, the lock is the same, but the encryption mode is different, which increases its security, and the lock can be unlocked by using a mobile phone, providing users with an intelligent and convenient unlocking mode. The invention combines the Bluetooth module and the single-chip microcomputer system. The single-chip microcomputer system sends information to the APP terminal through Bluetooth, and then the APP terminal feeds back information to the single-chip microcomputer system, indirectly controls the electromagnetic lock, and realizes small-scale monitoring of items and dynamic password unlocking.

Description

A bluetooth-based mobile phone APP and single-chip microcomputer control system

technical field

The invention belongs to the field of electronic technology, and in particular relates to an intelligent, practical, reliable and safe-to-use mobile phone APP and a single-chip microcomputer control system based on Bluetooth.

Background technique

With the continuous progress of society, people's life style is getting faster and faster. There are frequent reports of items being forgotten or lost in public places due to mobile phone calls, haste, etc., and how to prevent one's belongings from being lost or falling off has attracted considerable attention.

At present, in the case of home theft, criminals usually enter the home by breaking the mechanical lock on the door to steal. If a built-in lock is installed, the lock will be installed inside the door. There is no keyhole outside the door, and the user can only unlock it through the password received by the APP. . In this way, if illegal personnel want to enter, they can only destroy in a large area without knowing the password, which will inevitably arouse the vigilance of surrounding personnel, so as to prevent theft when there is no one at home. Moreover, the single-chip microcomputer technology and bluetooth technology used in this lock are now very mature, which provides the possibility for the use of this lock in a large range.

How to use the built-in lock technology of single-chip microcomputer technology and bluetooth technology to solve the occurrence of the phenomenon of forgetting or losing items in public places, and there is no solution that has not yet seen this aspect.

Contents of the invention

In view of the above problems, the object of the present invention is to provide an intelligent, practical, reliable and safe-to-use Bluetooth-based mobile phone APP and single-chip microcomputer control system, thereby protecting the articles carried by oneself.

In order to achieve the above object, the technical solution of the present invention is a mobile phone APP and a single-chip microcomputer control system based on bluetooth, including a single-chip microcomputer system and a bluetooth module connected to it respectively, a password digit control button, a password sending button, and a reset button. The indicator light, electromagnetic lock system and alarm system that detect the working status of the entire system, and the APP terminal is connected to the Bluetooth module by entering a password.

Furthermore, the above electromagnetic lock system includes a relay with optocoupler isolation, a switching power supply and an electromagnetic lock.

The alarm system includes another relay with optocoupler isolation, booster module, microcontroller power supply and alarm device.

The above-mentioned password digit control button controls the password digits through the length of key press time, and generates a random number between 4-10 as the password digits.

The above-mentioned password sending button can generate a random number dynamic password by pressing the button, and send it to the APP terminal through the Bluetooth module.

The single-chip microcomputer system can encrypt the dynamic password and verify the received password, and the encryption method is preferably Caesar encryption.

When the relay with optocoupler isolation is turned on, the electromagnetic lock is controlled to perform the unlocking function, and the switching power supply provides the voltage required for unlocking the electromagnetic lock.

When the other relay with optocoupler isolation is turned on, the alarm device is controlled to give an alarm, and the voltage required for the alarm device to work is provided by the boost module after boosting the power supply of the single-chip microcomputer.

The reset button can reset the system.

Compared with the prior art, the present invention has the advantages of:

1, the present invention utilizes the Caesar encryption algorithm during secondary encryption, m and n values can be set by itself, and the encryption methods are diverse, that is, users can choose the encryption methods themselves. For different users, the locks are the same, but the encryption methods are different, which increases the number of encryption methods. Security, while using the mobile phone to unlock, providing users with an intelligent and convenient way to unlock.

2. It can monitor objects in a small area. When the distance between objects and people exceeds a certain distance, usually about 10 meters, the alarm device will alarm and warn that the objects are stolen.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

In the figure: 1-MCU system, 2-APP terminal, 3-Bluetooth module, 4-password digit control button, 5-password sending button, 6-light 1, 7-light 2, 8-light 3, 9-Reset button, 10-Relay 1 with optocoupler isolation, 11-Switching power supply, 12-Electromagnetic lock, 13-Relay 2 with optocoupler isolation, 14-Boost module, 15-SCM power supply, 16-Alarm device.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, the bluetooth-based mobile phone APP and single-chip microcomputer control system includes a single-chip microcomputer system 1 and a bluetooth module 3 connected to it. The number of digits and transmission of the dynamic password, indicator light 1 (6 in the figure), indicator light 2 (7 in the figure), and indicator light 3 (8 in the figure) are used to detect the working status of the entire system, with optocoupler isolation Relay 1 (10 in the figure), switching power supply 11, and electromagnetic lock 12 form an electromagnetic lock system, and relay 2 with optocoupler isolation (13 in the figure), booster module 14, single-chip power supply 15, and alarm device 16 form an alarm System, reset button 9 resets the system. Open the APP terminal 2, search and enter the password to connect to the Bluetooth module 3, control the number of password digits by pressing the button 4 to control the number of digits of the password, and generate a random number between 4-10, which is the number of digits of the password. Send the random number password to the APP terminal 2 through the Bluetooth module 3 through the password sending button 5, and the APP terminal 2 will receive the password, and then input the twice-encrypted password into the sending area of the APP terminal 2 and send it to the single-chip system 1, the indicator light 1 (6 in the figure) lights up for a few seconds and then goes out, indicating that the single-chip microcomputer system 1 has received the data sent by the mobile terminal, and the single-chip microcomputer system 1 checks the received password. If the calibration is correct, the indicator light 2 (7 in the figure) is on, and the single-chip microcomputer system 1 sends a level signal to the relay 1 (10 in the figure) with optocoupler isolation to control the electromagnetic lock 12 to perform the unlocking function, and the switch The power supply 11 provides the voltage required for unlocking the electromagnetic lock 12; if the verification is wrong, the single-chip system 1 enters the state of receiving data again, and the APP terminal 2 sends the password to the single-chip system 1 again, and the single-chip system 1 performs verification again. Correct password, then single-chip microcomputer system 1 sends a level signal to relay 2 (13 in the figure), and then controls alarm device 16 to report to the police, and the required voltage of alarm device 16 work is provided after boosting voltage of single-chip microcomputer power supply 15 by booster module 14. The reset button 9 can reset the system, and the reset button 9 can be used to reacquire the password according to the steps of obtaining the password before when the password is forgotten. During the whole process, because of the priority, as long as the bluetooth module 3 interrupts the connection due to too long distance or other reasons, the single-chip microcomputer system 1 immediately controls the alarm device to give an alarm.

The present invention is based on bluetooth mobile phone APP and single-chip microcomputer control system and is characterized in that bluetooth module and APP terminal connection need password, single-chip microcomputer system generates dynamic password and sends to APP terminal, and the password that APP terminal receives utilizes Caesar encryption algorithm to encrypt, namely (f+ The remainder of m)/n (f represents the dynamic password received by the APP, and m and n can be selected by themselves), the purpose is to increase the reliability and security of the system.

The relay has an optocoupler isolation module 1, which can prevent the switching power supply from being directly connected to the single-chip microcomputer system, prevent the single-chip microcomputer system from being burned, and protect the central control system. The APP terminal enters the received password into the sending area of the mobile terminal and sends it to the single-chip microcomputer. The indicator light 1 lights up and goes out after a few seconds, indicating that the single-chip microcomputer has received the data sent by the mobile terminal. The single-chip microcomputer checks the received password. If the verification is correct, the indicator light 2 lights up, and the single-chip microcomputer sends a level signal to the relay 1 with optocoupler isolation to control the electromagnetic lock to perform the unlocking function; if the verification is wrong, the single-chip microcomputer Enter the state of receiving data again, the mobile phone terminal sends the password to the single-chip microcomputer again, and the single-chip microcomputer checks again, if the password is not correct for three consecutive times, the single-chip microcomputer sends a level signal to the relay 2 with optocoupler isolation, and then controls the alarm device to alarm, Indicator light 3 is on. The reset button can reset the system, and if the password is forgotten, the reset button can be used to retrieve the password according to the previous steps of obtaining the password.

It should be noted that the above embodiments are only preferred modes of the present invention, and any modification made without departing from the spirit of the present invention falls within the protection scope of the present invention.

Claims (10)

1. a mobile phone APP and single-chip microcomputer control system based on bluetooth, it is characterized in that comprising single-chip microcomputer system (1) and the bluetooth module (3) that is respectively connected with it, password digit control button (4), password transmission button (5), A reset button (9), an indicator light for detecting the working state of the entire system, an electromagnetic lock system and an alarm system, and the APP terminal (2) is connected to the Bluetooth module (3) by entering a password. 2. mobile phone APP and single-chip microcomputer control system based on bluetooth according to claim 1, is characterized in that described electromagnetic lock system comprises relay 1, switching power supply and electromagnetic lock with optocoupler isolation. 3. mobile phone APP and single-chip microcomputer control system based on bluetooth according to claim 1, is characterized in that described warning system comprises relay 2, step-up module, single-chip microcomputer power supply and warning device with optocoupler isolation. 4. mobile phone APP and single-chip microcomputer control system based on bluetooth according to claim 1, it is characterized in that described password digit control button (4) controls the password digit by the length of key press time, generates a position at 4-10 The random number between is used as the number of digits of the password. 5. mobile phone APP and single-chip microcomputer control system based on bluetooth according to claim 1, it is characterized in that described password transmission button (5) can produce a random number dynamic password by pressing the button, and send to by bluetooth module (3) APP terminal (2). 6. mobile phone APP and single-chip microcomputer control system based on bluetooth according to claim 1, it is characterized in that described single-chip microcomputer system (1) can encrypt dynamic password, and the password that receives is verified. 7. mobile phone APP and single-chip microcomputer control system based on bluetooth according to claim 6, it is characterized in that described encryption method is Caesar encryption. 8. mobile phone APP and single-chip microcomputer control system based on bluetooth according to claim 1, it is characterized in that when described relay 1 (10) with optocoupler isolation is switched on, control electromagnetic lock (12) to carry out unlocking function, switch The power supply (11) provides the required voltage for unlocking the electromagnetic lock (12). 9. mobile phone APP and single-chip microcomputer control system based on bluetooth according to claim 1, when it is characterized in that described relay 2 (13) with optocoupler isolation is switched on, control alarm device (16) reports to the police, alarm device ( 16) The voltage required for work is provided by the step-up module (14) after boosting the single-chip power supply (15). 10. mobile phone APP and single-chip microcomputer control system based on bluetooth according to claim 1, is characterized in that described reset button (9) can make system reset.