CN104240354A - Intelligent door lock system - Google Patents

Abstract

The invention relates to an intelligent door lock system. The intelligent door lock system comprises a door lock controlling chip, an induction module, a camera monitoring module, a mobile communication module, an alarm module and a lock bolt driving module, wherein the door lock controlling chip is respectively connected with the induction module, the camera monitoring module, the mobile communication module, the alarm module and the lock bolt driving module; the door lock controlling chip and the induction module are connected through related electrical level so as to control the camera monitoring module to take photos and store; the mobile communication module and the door lock controlling chip are mutually connected, and the mobile communication module receives and transmits a command of a smart phone to the door lock controlling chip; the door lock controlling chip receives the command content, controls a lock bolt to be opened and closed and also controls the alarm module to work through the lock bolt driving module; and the door lock controlling chip sends designated information or photos to the smart phone through the mobile communication module in a communication manner of GSM (global system for mobile communications) and the like. Through the cooperation of the modules, the intelligent door lock system can fully and systematically realize master's real-time control to a door lock. When an event in which a thief picks the lock and steals things occurs, a master can realize the home situations at once and quickly reacts, so that the safety of the door lock is greatly improved.

Description

A smart door lock system

technical field

The patent of the present invention relates to an intelligent lock system, which can realize remote monitoring of door locks and remote control of opening and closing of door locks.

Background technique

Along with the raising of people's living standard, pay more and more attention to the safety of door lock. Traditional mechanical locks are not very safe and are easy to be picked. Electronic combination locks with anti-theft alarm functions gradually replace traditional mechanical locks. With the development of large-scale integrated circuit technology, especially the advent of single-chip microcomputers, intelligent combination locks with bit processors have appeared. In addition, intelligent management, expert analysis and other functions have been introduced, so that the coded lock has high security, reliability, and is widely used. In view of the current technical level and market acceptance, the electronic coded lock is an electronic anti-theft product. mainstream.

The functions of the electronic locks currently on the market are not complete, and many products do not have remote control functions. The security and anti-theft performance of smart locks also needs to be improved. When there is no one at home, if a thief breaks the door, many products do not have the function of intelligent monitoring, and the head of the household cannot be notified in time. There are many false alarms and concealed reports.

Contents of the invention

The object of the present invention is to solve the problems in the background technology, and provide a remote control and remote intelligent anti-theft intelligent lock system. The remote control of the smart lock can be solved at a low cost, and it is easy to use, and the anti-theft performance of the door lock is greatly improved.

The present invention is achieved through the following technical solutions.

An intelligent door lock system according to the present invention mainly includes a door lock control chip (101), a sensing module (102), a camera monitoring module (103), a mobile communication module (104), a siren module (105), The deadbolt drive module (106); the door lock control chip (101) is connected with the sensing module (102), the camera monitoring module (103), the mobile communication module (104), the siren module (105), the deadbolt drive module ( 106) connect. Among them, the door lock control chip (101) and the sensing module (102) are connected through relevant levels to control the camera monitoring module (103) to take pictures and store them; the mobile communication module (104) and the door lock control chip ( 101) connected to each other, the mobile communication module (104) receives instructions from the smart phone to the door lock control chip (101), the door lock control chip (101) receives the instruction content, and controls the opening and closing of the lock tongue through the lock tongue drive module (106), And control siren module (105) work, door lock control chip (101) sends specified information or photo to smart phone by GSM or MMS or GPRS or 3G and other communication methods through mobile communication module (104).

The sensing module (102) of the present invention includes an infrared sensing device and a door magnetic sensing device.

The door lock control chip (101) described in the present invention is preferably an STM32 single-chip microcomputer.

The mobile communication module (104) described in the present invention is preferably a SIM900A chip.

The smart door lock system of the present invention is connected with the smart phone through communication methods such as GSM or MMS or GPRS or 3G. When the authorized smart phone sends specific text content to the smart lock, the mobile communication module in the smart lock system It will receive the information and send instructions to the door lock control chip. The door lock control chip controls the deadbolt drive module to open or close the electronic deadbolt, controls the alarm to work, or controls the door lock to communicate with the mobile phone according to different instruction contents.

When the sensing module (102) described in the smart door lock system of the present invention is an infrared sensing device, the working process of the present invention is as follows.

When the infrared sensing device in the smart door lock system senses someone in front of the door lock, it will feed back the sensing information to the door lock control chip (101). If the door lock control chip (101) does not receive the unlock command at this time, it will control the camera Take pictures and store them. Afterwards, the door lock control chip (101) controls the mobile communication module (104) to send information to a designated smart phone, and the sent content includes specific text messages and photos, and is sent by communication methods such as GSM, MMS, GPRS, or 3G. The mobile phone user understands the situation of the door through the information, determines whether to unlock, call the police or communicate with the visitor outside the door lock. And send the feedback information to the smart door lock system. The mobile communication module (104) receives the feedback information from the smart phone and transmits it to the door lock control chip (101), and the door lock control chip (101) controls the opening and closing of the lock tongue through the lock tongue drive module (106) or controls the siren module (105) Work or control the door lock and communicate with the mobile phone

When the sensing module (102) described in the smart door lock system of the present invention is a door magnetic sensing device, the working process of the present invention is as follows.

The door magnetic sensing device in the smart door lock system will not work when the door lock is opened normally. When the door is opened under other external forces, the door magnetic sensing device will feed back the sensing information to the door lock control chip (101), and the door lock control chip ( 101) Control the camera to take pictures and store the pictures, and at the same time control the siren module (105) to start working. Afterwards, the door lock control chip (101) sends the information to the specified smart phone through the mobile communication module (104), and the sent content includes specific text messages and photos, and is sent by communication methods such as GSM, MMS, GPRS, or 3G. The user understands the situation of the house through the information and calls the police in time.

The difference between the infrared sensing module and the door magnetic sensing module of the present invention is that when a stranger is outside the door, the infrared sensing works, and the door lock information is sent to the owner through a short message, and the owner will judge the situation of the house, whether it is a guest or a guest. thieves. When the door is opened abnormally, the door magnetic induction module works, indicating that the door lock has been invaded illegally, and the door magnetic induction module controls the alarm to work, and notifies the owner in time. Moreover, infrared sensing is susceptible to interference from various heat sources, light sources, radio frequency radiation, and thermal airflow; passive infrared penetration is poor, and the infrared radiation of the human body is easily blocked; when the ambient temperature is close to the human body temperature, the detection and sensitivity are significantly reduced. Due to short-term failures and other shortcomings, the combination of door magnetic induction and infrared induction provides double protection for remote monitoring and anti-theft of the door lock.

In the smart door lock system of the present invention, the door lock control chip (101) pre-sets the conditions for receiving information transmitted by the mobile communication module (104), including setting one or more specific mobile phones and sending specific content Only when the door lock control chip (101) receives the information from the mobile communication module (104). When the user unlocks the lock remotely, the specific content is sent to the smart door lock system through the smartphone. The mobile communication module (104) in the smart door lock system receives the information, and compares whether the mobile phone number and the content sent are consistent with the previously set conditions. If they are consistent, the door lock control chip (101) receives the mobile communication module ( 104), control the deadbolt driving module (106) to open or close the electronic deadbolt, control the siren module (105) to work, or control the door lock to communicate with the mobile phone.

In the intelligent door lock system of the present invention, when the lock is unlocked by the mobile phone command and the door is opened from inside the house, the sensing module will not work within one minute, which ensures that the door lock owner can enter and leave the door normally without false alarms.

The intelligent door lock system of the present invention has the advantages of fully and systematically realizing the remote control of the door lock by the head of the household and the remote intelligent anti-theft, so that the head of the household can grasp the situation of the door in real time, and can respond in time to unexpected situations such as theft. Specifically, that is.

1. Realize the remote control of the door lock, and control the unlocking through the mobile phone, eliminating the trouble of bringing keys. Security is guaranteed by setting authorized mobile phone and unlocking information passwords.

2. Equipped with a sensing device and a camera, when it senses that someone is standing outside the door or someone picks the lock, it can promptly notify the householder of the door situation. The head of household can respond quickly according to the situation. When the door is opened by unconventional means, the smart lock will sound an alarm and notify the householder in time. The head of the household can talk to people near the door lock at any time to know the situation of the house. Realized the function of remote intelligent anti-theft.

3. When the owner unlocks the door normally through the mobile phone or enters and exits the house after unlocking, the sensing device will not work, that is, the smart lock will not activate the functions of taking pictures and sending text messages. And existing remote anti-theft device, a lot of all can't do this, make must temporarily close anti-theft device to avoid causing confusion when owner returns home. Make the actual use effect of warning device unsatisfactory.

4. Through the cooperation of various modules, the smart lock comprehensively and systematically realizes the owner's real-time control of the door lock. When a lock picking and theft event occurs, the owner can immediately understand the situation at home and respond quickly, which greatly improves the security of the door lock. safety.

Description of drawings

Figure 1 is a schematic diagram of the main structure of the smart lock system.

Fig. 2 is a schematic diagram of the main judgment flow of the door lock control chip.

Fig. 3 is a flow chart of using a mobile phone to remotely control the door lock.

Fig. 4 is a flow chart of infrared induction intelligent anti-theft.

Fig. 5 is a flow chart of door magnetic induction intelligent anti-theft.

Detailed ways

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

Example 1.

Refer to accompanying drawing 3. The smart lock system of the present invention can remotely control the opening/closing of the smart lock by sending text messages or multimedia messages. Its working principle is: the user sets the phone number of the SIM card authorized by the mobile communication module through the relevant program in the door lock control chip, and can authorize the phone numbers of multiple SIM cards. The authorized phone number can receive information sent by the mobile communication module, and can also send information to the mobile communication module. The door lock control chip will respond to specific instructions sent by the authorized mobile phone. When the mobile communication module sends information to the user, the user can judge the content of the information and send specific information to the mobile communication module. After receiving the information instruction transmitted by the mobile communication module, the door lock control chip makes unlocking, unlocking and unlocking according to the instruction content. Start the siren or control the door lock and make a phone call. In order to realize the function of remote unlocking and real-time grasp of the door lock situation.

Example 2.

Refer to accompanying drawing 4. An intelligent lock device at least includes the following contents.

1. The principle of the present invention is: the door lock system detects the situation within a certain range of the door lock through the sensing module, uses the camera to record the real-time situation, and uses the mobile communication module to use GSM, GPRS or MMS or 3G and other mobile communication methods to communicate between the door lock and the user. Between the remote control, the door lock control chip controls the deadbolt drive module to open or close the electronic deadbolt and controls the alarm to work.

2. The infrared sensing module is used to detect visitors within a certain range of the door lock. When the infrared sensing module senses that someone is visiting within a certain range of the door, it will call the camera module to take pictures and send information to the owner's mobile phone through the mobile communication module. Time to grasp the situation of the house. If relatives and friends are allowed to enter the door, the owner can send an unlock command to control the door lock to open. If it is a suspicious person, the owner can send an instruction to control the alarm module of the door lock to work, or directly communicate with the person near the door lock, or immediately notify the neighbors or directly call the police. The real-time and effective monitoring of the door lock by the owner greatly improves the safety of the door lock.

Example 3.

Refer to attached picture.

1. The door magnetic sensing module is mainly composed of a door magnetic sensor, which is composed of a permanent magnet and a reed switch, which are installed on the door side and the door frame respectively. When the distance between the permanent magnet and the reed switch is greater than 5 mm ( That is, the distance between the door edge and the door frame is greater than 5 mm), the door magnetic sensor is triggered. When the door is opened through the mobile communication module, the single-chip microcomputer does not receive the signal of the door magnetic sensor, and when the door is opened in other ways, the door magnetic sensor works.

2. The intelligent lock of the present invention can prevent illegal personnel from breaking into the household through the door magnetic induction module in the induction module. By installing a door magnetic sensor consisting of a permanent magnet and a reed switch, it is judged whether it is an illegal person who destroys the door lock. If it is a lock picking behavior, the distance between the permanent magnet and the reed switch will be greater than 5 mm (ie If the distance between the door edge and the door frame is greater than 5 mm), the door magnetic sensor will be triggered. After the door magnetic sensor is triggered, the alarm module will also be controlled by the door lock control chip to emit an alarm sound. At the same time, the mobile communication module configured by the door lock sends a text message to notify the head of the household. The head of the household can immediately communicate with the door lock to warn the intruder, or directly report to the community business or the public security bureau, so as to realize intelligent remote security prevention and control.

Example 4.

1. The smart lock of the present invention can record the image information that appears within a certain range of the door lock by the camera module, and send the lock opening or closing information of a specific situation or a specific person to the authorized lock with a text message or a photo MMS message according to the user's needs. The mobile phone notifies the user.

2. The user of the smart lock of the present invention can set a specific time period to control the sending of the camera module record information. In the set special time period, every time the lock operation is opened or closed within a certain range of the door, the record will be sent to the user-specified mobile phone number. It can also be set for a specific user to send a text message to a specified mobile phone number whenever the user opens the smart lock.

The intelligent lock system of the present invention provides a spare key. In the event of system communication interruption, insufficient power supply, and other emergencies, the spare key can be used to unlock the lock. In order to prevent insufficient power supply, the smart lock is equipped with a backup power supply for insufficient power supply.

It should be understood that: although the above-mentioned embodiments have made more detailed text descriptions to the design ideas of the present invention, these text descriptions are only simple text descriptions to the design ideas of the present invention, rather than limitations to the design ideas of the present invention. The combination, addition or modification of the design idea of the patent of the present invention all fall within the protection scope of the present invention.

Claims (4)

1. an intelligent door lock system, is characterized in that comprising door lock control chip (101), induction module (102), camera monitoring modular (103), mobile communication module (104), alarm module (105), dead bolt driver module (106); Door lock control chip (101) is connected with induction module (102), camera monitoring modular (103), mobile communication module (104), alarm module (105), dead bolt driver module (106) respectively; Wherein, be associated by associated level between door lock control chip (101) with induction module (102) and then control camera monitoring modular (103) and carry out taking pictures and by photo storage; Mobile communication module (104) and door lock control chip (101) are interconnected, mobile communication module (104) receives smart mobile phone instruction to door lock control chip (101), door lock control chip (101) receives command content, and control dead bolt opening and closing by dead bolt driver module (106), and controlling alarm module (105) work, appointed information or photo are sent to smart mobile phone by GSM or MMS or GPRS or 3G communication mode by mobile communication module (104) by door lock control chip (101).

2. intelligent door lock system according to claim 1, is characterized in that described induction module (102) comprises infrared inductor and door magnetic-inductive device.

3. intelligent door lock system according to claim 1, is characterized in that described door lock control chip (101) is STM32 single-chip microcomputer.

4. intelligent door lock system according to claim 1, is characterized in that described mobile communication module (104) is SIM900A chip.