KR100555410B1 - System and method for controlling digital door lock - Google Patents

Abstract

According to the present invention, a sensing unit that detects whether a situation corresponding to these conditions occurs by setting several conditions (PCB damage, vibration caused by shock, sound generated by shock) that is regarded as an action to abnormally open a door It is installed inside the door lock and informs the situation from the digital door lock to the home automation system installed in the house when it is determined that an abnormal door opening has occurred by a third party, and the home automation system is forced to invade by the associated unmanned security system. Claims [1] To provide a digital door lock system capable of informing the fact and a control method thereof, the home automation device installed in any household and connected to an unmanned security system; And a digital door lock provided with two-way communication with the home automation device, and considering a forced intrusion when a signal corresponding to a shock generated when a specific person tries to open the door forcibly is regarded as a forced intrusion. There is a characteristic.

Digital Door Lock, Security, Forced Intrusion, Home Automation

Description

Digital door lock system and its control method {System and method for controlling digital door lock}             

1 is a schematic configuration diagram of a conventional digital door lock,

2 is an overall system configuration of the interlocking between the digital door lock and home automation equipment for implementing the present invention,

3 is a block diagram of a digital door lock according to a preferred embodiment of the present invention;

4 is a flowchart illustrating a method for controlling a digital door lock according to a preferred embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: Home Automation Appliance 11: Unmanned Security System

20: wireless digital door lock 21: control unit

22: power supply 23: memory

24: voice processing unit 25: display unit

26: motor drive unit 27: door open / locked detection unit

28: button input unit 29: contact key input unit

30: motor 40: detector signal processor

41: PCB damage detection unit 42: vibration detection unit

43: sound detector 50: wireless transceiver

The present invention relates to a home automation system, and more particularly, a wireless digital door lock system for detecting a notification when the door is opened in an abnormal manner using a wireless digital door lock bidirectional system and notifying the central management office. The control method is related.

In general homes and offices, the door is opened and closed by a low-cost mechanical mechanism, and digital door locks using a password input or a radio frequency (RF) card are gaining popularity.

Digital door lock is a technology to overcome the user's inconvenience caused by the loss of the key of the mechanical lock and the security problem caused by the theft and duplication of the key by a third party, and it is a key input (password) or RF card (or IC card). Access control device using various electronic keys such as

1 is a schematic configuration diagram of a conventional digital door lock.

Referring to FIG. 1, a conventional digital door lock includes a control unit 1 for controlling overall control of a digital door lock, a power supply unit 2 for supplying power to the digital door lock, and a memory for storing ID information provided for each contact key. (3), the voice processing unit 4 for notifying the door open / closed / abnormal operation state by voice, the display unit 5 for displaying various state information on the battery state display, etc., and the dead function to substantially open and close the door. The motor 10 for moving the bolt, the motor driver 6 for outputting a driving signal for controlling the forward / reverse rotation state of the motor 10, and the door open / lock detection unit for detecting and informing the door open / locked state ( 7) information of electronic keys such as a button input unit 8 for inputting a key button for password input using a numeric key or a guard room call, or an RF card (or IC card) that is not a password input method; And a touch key input section (9) which passes the input information.

In the conventional digital door lock configured as described above, when a user inputs a password using the button input unit 8 or places an electronic key such as an RF card on the contact key input unit 9, the password is matched or the electronic unit is controlled by the controller 1. If it is determined that the ID of the key is one of the IDs already stored, the control signal is output to the motor driving unit 6 to rotate the motor 10 in the direction corresponding to the door opening. The dead bolt (not shown) enters the inside of the door according to the direction in which the motor 10 rotates, thereby opening the door.

However, in the conventional digital door lock as described above, there is no provision for a case where a third party opens the door by using an abnormal method such as physically damaging the digital door lock. have.

Therefore, the present invention has been made to solve the above problems, by setting some conditions (PCB damage, vibration caused by impact, sound generated by impact) that are considered to be an action to open the door abnormally A detector is installed inside the digital door lock to detect whether a situation corresponding to the condition occurs, and when it is determined that an abnormal door opening has occurred by a third party, the digital door lock is notified to the home automation system installed in the house. Home automation system is to provide a digital door lock system and a control method that can inform the fact that the forced intrusion to the associated unmanned security system.

Digital door lock system according to the present invention for achieving this object, home automation equipment installed in any generation and associated with the unmanned security system; Two-way communication with the home automation device is provided, and if a signal according to a shock generated when a specific person tries to open the door forcibly is included, a digital door lock is regarded as forced intrusion and the home automation device is notified of the occurrence of forced intrusion. The digital door lock may include: a PCB damage detection unit for detecting a damage of the PCB by detecting a current value flowing through the PCB of the digital door lock; Vibration sensing unit for detecting a vibration due to the impact; A sound detector for detecting a sound due to the impact; And a detector signal processor configured to output signals related to forced intrusion by determining whether the PCB is damaged by integrating signals output from the PCB damage detector, the vibration detector, and the sound detector.

PCB damage detection unit of the digital door lock, if a current value '0' due to the current blocking when the PCB damage is detected as a forced intrusion state characterized in that for transmitting a signal indicating a forced intrusion state to the detection unit signal processing unit .

The vibration detector may detect a vibration state when a shock occurs according to an action of forcibly opening a door and output the vibration state to the detector signal processor.

The sound detector may detect a noise state when a shock occurs according to an action of forcibly opening a door by a specific person, and output a signal informing of the abnormality of a sound higher than a predetermined decibel to the detector signal processor.

The detection unit signal processing unit, if a signal indicating that the forced damage from any one of the PCB damage detection unit, the vibration detection unit and the sound detection unit is applied to determine that the forced intrusion and outputs a signal relating to the forced intrusion It is characterized by.

The sensing unit signal processing unit, when a pulse signal is applied three or more times from the vibration detection unit is characterized in that the forced intrusion and outputs a signal relating to the forced intrusion.

The detector signal processor may determine whether a forced intrusion is performed based on a result of performing a logical AND on the signals of the sound detector and the vibration detector by an AND gate.

The digital door lock control method according to the present invention for achieving the above object, the threshold value of the vibration and sound signal according to the shock generated when a specific person forcibly opens the door to detect the password and abnormal door opening and closing from the user Receiving a setting; When the current value of the PCB is detected as '0' or when the vibration or sound signal is detected above the set threshold value is determined as a forced intrusion and outputting a signal relating to the forced intrusion.

The method further includes determining that a forced intrusion is detected when three or more pulse signals are detected, and outputting a signal relating to the forced intrusion.

The method may further include outputting a signal relating to forced intrusion according to a result of logically multiplying the detected signals by a logical AND unit (AND gate) when a vibration or sound signal having a predetermined threshold or more is detected.

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Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

2 is an overall system configuration of the interlocking between the digital door lock and the home automation device for implementing the present invention.

Referring to FIG. 2, the entire system is a wireless communication device 10 that is installed in each home, a wireless digital door lock 20 that wirelessly communicates with the home automation device 10 and performs door opening / locking, and a home automation device ( 10) includes an unmanned security system (11) linked to.

Two-way wireless data transmission and reception is performed between the home automation device 10 and the digital door lock 20, and the home automation device 10 is connected to the unmanned security system 11 to invade a third party in the home or cause a fire. Inform the situation.

The data communication between the digital door lock 20 and the home automation device 10 can be installed by wire, but the present invention will be described taking as an example a wireless method.

3 is a detailed view of the wireless digital door lock shown in FIG. 2.

Referring to FIG. 3, the wireless digital door lock includes a control unit 21 for controlling overall control of the digital door lock, a power supply unit 22 for supplying power to the digital door lock, and a password set for storing ID information provided for each contact key. Memory 23 for storing the information, a voice processing unit 24 for notifying the open / closed / abnormal operation state of the door by voice, a display unit 25 for displaying various status information on the battery status display, etc. The motor 30 that moves the dead bolt, which serves to close the motor, the motor driver 26 which outputs a driving signal for controlling the forward / reverse rotation state of the motor 30, and the door opened by detecting the open / locked state of the door. / Lock detection unit 27, a button input unit 28 for inputting a key button for password input or security room call using the numeric keys, RF card (not the password input method) Or a contact key input unit 29 for transmitting information of an electronic key such as an IC card as input information, a wireless transceiver unit 50 for providing wireless data communication with the home automation device 10, and a third party physically PCB damage detection unit 41 for detecting a case of breaking the PCB (Printed Circuit Board) of the digital door lock by applying a force, vibration detection unit 42 for detecting a vibration state that may be caused by the impact, impact The information detected by the sound detection unit 43, the PCB damage detection unit 41, the vibration detection unit 42, the sound detection unit 43 for detecting a sound of a predetermined decibel or more that may occur due to It includes a detector signal processor 40 for outputting a signal indicating whether or not the door is opened in a non-normal manner by comparing the reference value already set.

The memory 23 may store or update ID information and a password provided for each contact key by using an erasable programmable ROM (EPROM) that is a programmable and erasable memory.

The PCB damage detection unit 41, if a third party forcibly breaks the door lock and breaks the circuit board, the current value inside the PCB damage detection unit 41 is an abnormal value (the current does not flow, so that '0' is generated). In this case, if no signal is received from the PCB damage detection unit 41, the detection unit signal processing unit 40 determines that the PCB is damaged.

On the other hand, in case the door is opened while the PCB is not damaged even if the third party forcibly breaks the door lock, the vibration detection unit 42 and the third party can detect any action forcibly opening the door. The sound detector 43 may determine whether a forced intrusion is made.

The vibration detecting unit 42 detects the vibration caused by the shock generated when the third party forcibly opens the door, so that the signal transmitted from the vibrating element is regarded as a forced intrusion state when the signal transmitted from the vibration device is 3 or more continuous pulses.

The sound detector 43 also detects a sound caused by a sound or an impact generated when a third party forcibly opens the door and considers it to be a forced intrusion state if it is determined to be above a predetermined decibel.

The detector signal processor 40 may determine the forced intrusion state even if only one of the PCB damage detector 41, the vibration detector 42, and the sound detector 43 operates.

In the case of the sound detector 43, noise may occur at a predetermined decibel or higher regardless of the intrusion of a third party in the vicinity, and thus the output signal of the vibration detector 42 and the sound detector 43 may be generated. May be set to be received and processed through an AND function.

In this case, even if a sound of more than a certain decibel is detected, if the signal for vibration is not more than three consecutive pulses, it is not treated as a forced intrusion.

The method of controlling the digital door lock in the state configured as described above is as follows.

4 is a flowchart illustrating a method for controlling a digital door lock according to an exemplary embodiment of the present invention.

Referring to FIG. 4, first, a user inputs a password using a button input unit before using the digital door lock, or the door is opened by an abnormal method to a certain level with a vibration detection unit, a sound detection unit, and a PCB damage detection unit. Conditions for whether to regard the state is set (S1).

After this setting, the detector signal processor determines whether a signal related to abnormal door opening and closing while waiting for a signal input from a PCB damage detector, a vibration detector, and a sound detector (S2).

In such a state, when it is determined that a signal regarding abnormal door opening and closing is received by the sensor signal processor, a signal informing a forced intrusion situation is transmitted to the home automation device through the wireless transceiver of the digital door lock (S3).

Home automation equipment is connected to the unmanned security system to inform the forced intrusion situation with the information (address, phone number, etc.) in the home where the forced intrusion occurred (S4).

According to this series of processes, when a third party tries to open the door forcibly, if the PCB is damaged, the PCB damage detection unit 41 outputs a value for an abnormal state, the vibration detection unit 42 and the sound The sensing unit 43 detects the vibration and sound caused by the impact and transmits a signal indicating the forced intrusion situation to the detecting unit signal processing unit 40 so that the control unit 21 comprehensively determines that the forced intrusion situation. The wireless transmission / reception unit 29 transmits to the home automation device 10.

Although the preferred embodiments of the present invention have been described in detail above, those skilled in the art will appreciate that the present invention may be modified without departing from the spirit and scope of the invention as defined in the appended claims. It will be appreciated that modifications or variations may be made. Therefore, changes in the future embodiments of the present invention will not be able to escape the technology of the present invention.

As described above, according to the present invention, the function of the digital door lock, which merely provided the function of opening and closing the door, is forcibly detected by the third party, thereby enhancing the security security function.

Claims (13)

Home automation equipment installed in any household and associated with an unmanned security system; Wow  Two-way communication with the home automation device is provided, and if a signal according to a shock generated when a specific person tries to open the door forcibly is included, a digital door lock is regarded as forced intrusion and the home automation device is notified of the occurrence of forced intrusion. The digital door lock, A PCB damage detector for detecting a current value flowing through the PCB of the digital door lock to detect whether the PCB is damaged; Vibration sensing unit for detecting a vibration due to the impact; A sound detector for detecting a sound due to the impact; And And a detection unit signal processing unit for outputting a signal relating to forced intrusion by determining whether the intrusion is detected by combining signals output from the PCB damage detection unit, the vibration detection unit, and the sound detection unit. delete delete delete The method of claim 1, wherein the PCB damage detection unit, When the current value '0' due to the current blocking when the PCB damage is detected, it is regarded as a forced intrusion state and delivers a signal indicating the forced intrusion state to the detection unit signal processing unit, characterized in that. According to claim 1, wherein the vibration detection unit, Digital door lock system, characterized in that for detecting the vibration state in the event of a shock caused by the action of a specific person forcibly opening the door to output to the detector signal processor. The method of claim 1, wherein the sound detection unit, Digital door lock system characterized in that for detecting the noise state when a shock occurs due to the action of a specific person forcibly opening the door and outputs a signal to inform the detection unit signal processing unit when a sound abnormality over a predetermined decibel. The method of claim 1, wherein the detector signal processor, Digital door lock system for outputting a signal for forced intrusion by determining that the signal is a forced intrusion from any one of the PCB damage detection unit, vibration detection unit and the sound detection unit is applied as a forced intrusion . The method of claim 1, wherein the detector signal processor, When the pulse signal is applied three or more times in a row from the vibration detection unit is determined as a forced intrusion digital door lock system, characterized in that for outputting a signal relating to the forced intrusion. The method of claim 1, wherein the detector signal processor, And determining whether a forced intrusion is generated based on a result of performing a logical AND on the signals of the sound detector and the vibration detector by an AND gate. Receiving a threshold value of the vibration and the sound signal according to the shock generated when a specific person forcibly opens the door to detect the password and abnormal door opening and closing from the user; Wow When the current value of the PCB is detected as '0' or the vibration or sound signal is detected above the set threshold value is determined as a forced intrusion and outputting a signal relating to the forced intrusion comprising the step of outputting a signal . The method of claim 11, And determining that a forced intrusion is detected when three or more pulse signals are detected, and outputting a signal relating to the forced intrusion. And outputting a signal relating to a forced intrusion according to a result of logically multiplying the detected signals by an AND gate when the vibration and sound signals of the predetermined threshold value or more are detected. Way.

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