KR101717706B1 - Digital door lock system using vidio recording function and wireless communication function - Google Patents

Digital door lock system using vidio recording function and wireless communication function Download PDF

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Publication number
KR101717706B1
KR101717706B1 KR1020150128105A KR20150128105A KR101717706B1 KR 101717706 B1 KR101717706 B1 KR 101717706B1 KR 1020150128105 A KR1020150128105 A KR 1020150128105A KR 20150128105 A KR20150128105 A KR 20150128105A KR 101717706 B1 KR101717706 B1 KR 101717706B1
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South Korea
Prior art keywords
door lock
wireless communication
function
lock device
image data
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KR1020150128105A
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Korean (ko)
Inventor
김기익
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파이온텍 주식회사
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • H04N7/186—Video door telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0094—Mechanical aspects of remotely controlled locks
    • E05B2047/0095—Mechanical aspects of locks controlled by telephone signals, e.g. by mobile phones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Lock And Its Accessories (AREA)
  • Alarm Systems (AREA)

Abstract

An intelligent digital door lock system is disclosed. An intelligent digital door lock system having a video storage function and a wireless communication function according to the present invention includes a door lock device, a door lock device, and a door lock device, which transmit a real-time stored image through a wireless communication function, A mobile communication device for checking images captured and transmitted and controlling functions of the door lock device 100, and a device for real time storing and transmitting images captured and transmitted by the door lock device, And a management server that supports the wireless communication control function of the communication device, thereby improving the security, stability, and convenience of the digital door lock.

Description

TECHNICAL FIELD [0001] The present invention relates to an intelligent digital door lock system having a video storage function and a wireless communication function,

The present invention relates to a digital door lock, and more particularly, to a digital door lock which can secure real-time image data without damaging it, enables control using a smart device, and eliminates electrical problems such as high- And more particularly, to an intelligent digital door lock system having an image storage function and a wireless communication function capable of enhancing security, stability, and convenience.

The reliability of the door lock is increasing due to the increase in the number of households and the increase in the number of single-person households, the occurrence of malfunctions due to ultra-high voltage, electric shock, and errors in discharging the battery.

In particular, the conventional door lock was first developed as a password type, and as the technology gradually developed, various authentication technologies such as a card key, a digital key, an RFID, and a fingerprint recognition were further introduced. However, when a very high voltage or an electric shock is applied, a malfunction is caused and a problem occurs such as an error in discharging a battery, resulting in a security problem, and the reliability of users is lost.

Accordingly, the development of technology capable of solving the problems of the existing digital door lock has been carried out in various aspects such as technology convergence and IoT-based development, and Korean Patent Publication No. 10-2003-0036273 (2003, 05,09, published) The electronic door lock can be remotely controlled through the external communication device and the electronic door lock can be opened and closed wirelessly even in the state of no communication due to the failure of the public network. The user can also receive the image signal of the user generated from the external device, A door lock control system is provided to identify who is going to the inside of the house or who is going out.

However, in the case of a door lock to which a conventional video surveillance technology has been added, there is an inconvenience that the door lock can be used in conjunction with home automation, or the image can be checked only indoors. In addition, it was impossible to respond to outsiders' access or intrusion, and it was troublesome for the user to directly replace the battery when discharging the battery, and there was also a problem of security against malfunction in discharging.

Accordingly, in recent years, it is necessary to not only enhance security but also to minimize the inconvenience of users such as having a card key, and it is necessary to develop technologies utilizing smart devices as well. In addition, there is a further demand for development of a technology in which door locks are individually installed and the convenience of the user, which can be controlled by the user at any time, is increased.

Korean Patent Publication No. 10-2003-0036273 (2003, 05,09, published)

It is an object of the present invention to overcome the above-mentioned problems and to provide an image display device capable of preventing real-time image data from being damaged while controlling using a smart device and eliminating electrical problems due to high- The present invention provides an intelligent digital door lock system having a video storage function and a wireless communication function that can improve the security, stability, and convenience of the portable terminal.

According to an embodiment of the present invention, an intelligent digital door lock system having an image storage function and a wireless communication function according to an embodiment of the present invention can capture a real-time image, store a real- A mobile communication device for checking the images captured and transmitted by the door lock device and controlling the functions of the door lock device 100 and a mobile communication device for real- And a management server for supporting a wireless communication control function of the door lock device and the mobile communication device.

According to the intelligent digital door lock system having the video storage function and the wireless communication function of the present invention, the real-time image data can be prevented from being damaged and the control using the smart device can be performed. It is possible to improve the security, stability and convenience of the digital door lock.

In particular, it is possible to extend the application with security technology by combining the function of image recording and storage with the function of general door lock, and it is possible to reduce the communication cost and simplify device There is an effect. In addition, since the image data is simultaneously stored in the SD card and the cloud server, loss and damage of the image data can be prevented, and security and stability can be improved.

In addition, by applying IT technology such as wireless network and smartphone control to the door lock, it can be used for user needs, maximizing added value, and enabling each device to be checked and controlled in real time by using smart phone. have.

In addition, there is no inconvenience of replacing the battery by using the power supply at all times, and it is possible to cope with breakage due to electric shock, so that the battery can be normally operated even in situations such as discharge, damage and power failure, have.

In addition, it can be applied to existing products due to the module unit development of door lock and camera, thus reducing costs and expanding application range such as doors, windows, and verandas, so that users can be indoors If the situation is waiting to hide, etc., it is possible to prevent crime.

1 is a block diagram illustrating an intelligent digital door lock system having a video storage function and a wireless communication function according to an embodiment of the present invention.
FIG. 2 is a diagram for explaining a linking function between the door lock device of FIG. 1, the mobile communication device, and the management server.
3 is a block diagram specifically showing the door lock device shown in Figs. 1 and 2. Fig.
FIG. 4 is a flowchart for describing an image capturing and image transmission algorithm of the door lock device shown in FIG.
5 is a flowchart illustrating a motion detection algorithm of the control processor shown in FIG.
6 is a flowchart for explaining an external network access method when motion is detected according to the algorithm of FIG.
FIG. 7 is a diagram for explaining a user matching method of the mobile communication device and the door lock device shown in FIGS. 1 and 2. FIG.
FIG. 8 is a diagram for explaining a normal power application function of the power supply unit shown in FIG. 3. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating an intelligent digital door lock system having a video storage function and a wireless communication function according to an embodiment of the present invention. 2 is a diagram for explaining a linking function between the door lock device of FIG. 1, the mobile communication device, and the management server.

1 and 2, a digital door lock system according to the present invention includes a plurality of door lock apparatuses 100, a plurality of mobile communication apparatuses 200, And a management server 300 that supports a communication control function.

Specifically, each door lock device 100 captures a real-time image and compares the forward and backward images in units of a predetermined time or frame to detect whether the motion has changed. The images are sequentially stored according to whether motion is detected or not, and images sequentially stored through a wireless communication function are transmitted. Each of the door lock devices 100 is configured to include a rechargeable battery while being connected to a power source at all times so as to maintain a charged state when the power source is normal and to operate normally using the charged battery even when intentional or unintentional power failure occurs, Errors due to discharge can be excluded. The door lock device 100 according to the present invention will be described in more detail with reference to the accompanying drawings.

Each mobile communication device 200 receives and installs an application program or related software for monitoring and controlling the door lock device 100 from the management server 300. In accordance with the program control of the user, the image picked up and transmitted by the door lock apparatus 100 is checked through an application program or the like, and the function of the door lock apparatus 100 is controlled. Specifically, the user can confirm images captured and transmitted in his or her own door lock device 100 in real time through an application program of the mobile communication device 200, confirm the lock status of the door lock device 100, Or the unlock function. For this purpose, the user can register unique information and product information on his or her own door lock device 100 in the management server 300, and use the same after matching with the login information of the user and the mobile communication device 200.

The management server 300 stores the images transmitted from the respective door lock devices 100 in real time and transmits the images photographed and stored through the door lock device 100 to the mobile communication device 200 ). The management server 300 provides application programs and related software to each mobile communication device 200 to support the wireless communication control functions of the door lock device 100 and the mobile communication device 200. [ Unique information and product information of the door lock device 100 are provided through each mobile communication device 200 and the login information through each mobile communication device 200 and unique information of the door lock device 100, Information can be matched to perform an authentication process, and then the corresponding service can be provided through an application program or the like.

3 is a block diagram specifically showing the door lock device shown in Figs. 1 and 2. Fig.

The door lock device 100 shown in FIG. 3 includes a wireless communication module 102 for performing near-field and long-distance wireless communication, a camera module 104 for photographing an external environment in real time and transmitting photographed image data, Stores the data in the first memory 105 and compares the forward and backward image data in units of a predetermined time or frame to detect whether or not the motion has changed, sequentially stores the image data in which the motion change is detected in the second memory 106, A control processor 103 for controlling the wireless communication module 102 to be transmitted to the management server 300 through the wireless communication module 102; And a rechargeable battery connected to the constant power source so that the wireless communication module 102, the camera module 104, and the control unit 100 are configured to maintain the charged state when the power source is normal and operate normally using the charged battery even during a power failure. And a power supply unit 110 for supplying power to the processor 103.

The door lock device 100 is provided with a keypad 101 to which a password or the like is input and an opening and closing device 107 for performing an interface function between the opening and closing device 107 and the control processor 103 to control the opening and closing device 107 to be locked and unlocked A device interface 108, a password, and a registration switch 109 configured to register a preset function on the inner side of the door.

The wireless communication module 102 includes a short-range wireless communication module having a short-range wireless communication function such as Wi-Fi, Bluetooth, Wi-Di and a long-distance wireless communication module having long- And a wireless communication module. Accordingly, the wireless communication module 102 transmits control signals, video data, and the like between the control processor 103 and the management server 300 in accordance with an adjacent local communication terminal or a remote communication method. Control signals such as lock / unlock are transmitted between the mobile communication device 200 and the control processor 103 as well.

The camera module 104 may include at least one image sensor or the like so that at least one camera module 104 may be arranged inside / outside the door lock. Accordingly, the camera module 104 captures the environment such as inside / outside in real time, and transmits the captured image data to the real-time control processor 103. [

The control processor 103 sequentially stores the real-time image data photographed by the camera module 104 in the first memory 105. Then, the controller sequentially compares the forward and backward image data in units of a preset time or frame, and detects whether the motion is changed according to the image data change. Accordingly, when a motion change is detected, the image data in which the motion change is detected are sequentially stored in the second memory 106, and the image data in which the motion change is detected are transmitted to the management server 300 through the wireless communication module 102 Respectively.

FIG. 4 is a flowchart for describing an image capturing and image transmission algorithm of the door lock device shown in FIG. 5 is a flowchart for explaining the motion detection algorithm of the control processor shown in FIG.

4, the door lock device 100 photographs an external environment through the camera module 104 and stores image data corresponding thereto. In this case, the door lock device 100 photographs the external environment so as to include not only image data but also voice data. And stored. Such an image clip can be a video that uses a standardized format such as MP4 file and can identify the intruder or the identity of the visitor. If a visitor presses a bell, a voice to be transmitted by a visitor is included in a video clip in accordance with a guide letter of the door lock device 100, so that a complicated operation such as opening a separate voice channel can be made unnecessary. Thus, transmission in the form of video clips does not require a complicated protocol such as connection of a digital voice channel, and simplifies development of a device.

In addition, the door lock device 100 senses a change in the image and stores it in the first memory 105 composed of an SD card or the like from a point in time when the image has been buffered. The door lock device 100 stores the image of several seconds or tens of seconds before the actual motion is detected . Therefore, even if the intruder hides or damages the image sensor of the camera module 104, the previous image can be secured.

5, the control processor 103 sequentially compares the forward and backward image data in units of a preset time or frame, and detects whether the motion is changed according to the image data change . Specifically, the control processor 103 extracts the gray value (UV) and the brightness value (Y) from the image data of at least one frame which is the previous image and then sets the gray value (UV) and the brightness value (Y) Into a plurality of areas (for example, 16 * 16 sectors). The gray value (UV) and the brightness value (Y) of each divided area are stored for each of the divided sectors, and average values of the gray value (UV) and the brightness value (Y) can be calculated and stored for each divided sector.

In addition, the control processor 103 extracts the gray level value (UV) and the brightness level (Y) from the image data of at least one frame, which is the subsequent image, and then outputs the gray level value (UV) and the brightness value (For example, a sector of a 16 * 16 area). The gray values (UV) and the brightness values (Y) of the divided regions are stored for each of the divided sectors, and average values of the gray values (UV) and the brightness values (Y) have.

Then, the control processor 103 designates coordinate values for each of the divided sectors, and calculates an average value of the gray values (UV) and brightness values (Y) of the divided sectors of the previous frame image data in units of sectors for each coordinate value, With the average value of the tone value (UV) and the brightness value (Y) of each divided sector of the frame. A sector having a difference between the average value of the tone value (UV) and the brightness value (Y) per sector is detected as having a motion change, and an event indicating that motion is detected is generated. When the motion change is detected, the image data in which the motion change is detected are sequentially stored in the second memory 106, and the image data in which the motion change is detected are transmitted to the management server 300 through the wireless communication module 102 Respectively.

6 is a flowchart for explaining an external network access method when motion is detected according to the algorithm of FIG.

Referring to FIG. 6, the wireless communication module 102 includes a short-range wireless communication module and a long-range wireless communication module. When motion is detected, the mobile communication device 200 And the management server 300. In this case, For example, the wireless communication module 102 uses WiFi as a short-distance communication means and supports both an AP function and a station function. In general, the wireless communication module 102 operates in the AP mode so that the user's smart device can directly access the door without a separate Wi- It is not necessary to install a separate AP. If a Wi-Fi AP is installed, it will switch from AP mode to station mode when a motion detection event is generated or when a doorbell is pressed, providing a function to transmit a message to the user's smart device It is possible. In particular, when the AP is not installed, a 3G modem or an LTE modem instead of the Wi-Fi may be installed instead of the Wi-Fi module to directly connect to the external network.

FIG. 7 is a diagram for explaining a user matching method of the mobile communication device and the door lock device shown in FIGS. 1 and 2. FIG.

The user can register unique information and product information of his or her own door lock device 100 in the management server 300 and use the login information and the mobile communication device 200 by matching them. The management server 300 provides an application program or related software to each mobile communication device 200 to support the wireless communication control functions of the door lock device 100 and the mobile communication device 200. [ Unique information and product information of the door lock device 100 are provided through each mobile communication device 200 and the login information through each mobile communication device 200 and unique information of the door lock device 100, Information can be matched to perform an authentication process, and then the corresponding service can be provided through an application program or the like.

7, when a user installs a plurality of door lock devices 100, a unique number is given to all the modular door lock devices 100 to detect motion or to detect abnormal conditions of the door lock device 100, And the like, the unique number of the door lock device 100 can be used at the time of communication with the user, so that it is possible to easily grasp the position and the situation where the problem occurs.

FIG. 8 is a diagram for explaining a normal power application function of the power supply unit shown in FIG. 3. FIG.

The power supply unit 110 of the door lock apparatus 100 is configured to include a rechargeable battery while being connected to the power supply at all times. When the power supply is normal, the power supply unit 110 maintains the charged state, 102, the camera module 104, and the control processor 103. When the power supply unit 110 is configured to include a rechargeable battery while being connected to the power supply at all times, the power supply unit 110 can maintain the charged state when the power supply is normal, and can operate normally using the charged battery even during intentional / unintentional power outage. Thus, it is possible to prevent an error caused by battery discharge and to take measures against ESD (Electro Static Discharge) in the device in order to prevent a static attack such as a high pressure which is a kind of forced intrusion attempt of the digital door lock device 100 By providing a separate grounding line from the circuit design, it is possible to protect against attacks due to high voltage through grounding at the time of constant power supply.

As described above, according to the intelligent digital door lock system of the present invention, it is possible to control real-time image data without damaging it while using a smart device, and to eliminate electric problems due to high-voltage shock or battery discharge The security, stability, and convenience of the digital door lock device 100 can be improved. In particular, it is possible to extend the application to the security technology by combining the functions of the general door lock device 100 with the image capturing and storing functions, and it is unnecessary to set a separate voice channel by including voice in the image clip, Can be simplified. In addition, simultaneous storage on the SD card and the cloud server prevents loss and damage of the video data, thereby improving security and stability.

In particular, it is possible to apply IT technology such as a wireless network and a smartphone control to the door lock device 100, to add to the user's needs, maximize added value, and check and control each device in real time using a smart phone, Can be improved. In addition, there is no inconvenience of replacing the battery by using the power supply at all times, and it is possible to cope with breakage due to electric shock, so that the battery can be normally operated even in situations such as discharge, damage and power failure, thereby improving security. The module unit of the door lock device 100 and the camera can be applied to existing products, thereby reducing the cost and expanding the application range such as doors, windows, and verandas, If you are indoors, you can prevent crime by sensing the situation of waiting and lurking.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

Claims (6)

A door lock device for capturing a real time image, storing a real time image according to a motion change, and transmitting a real time stored image through a wireless communication function;
A mobile communication device for checking images captured and transmitted by the door lock device and controlling functions of the door lock device 100; And
A management server for storing images captured and transmitted by the door lock device in real time to provide the door lock device and the mobile communication device with a wireless communication control function upon request of the mobile communication device;
, ≪ / RTI &
The door lock device
A wireless communication module for performing near-field and far-field wireless communication;
A camera module for photographing an external environment in real time and transmitting photographed image data;
Storing the real-time photographed image data in a first memory, comparing the forward and backward image data in units of a predetermined time or frame to detect whether the motion has changed, sequentially storing the sensed image data in the second memory, A control processor for controlling the wireless communication module to be transmitted to the management server through the wireless communication module; And
A power supply unit for supplying power to the wireless communication module, the camera module, and the control processor so as to operate normally using a battery charged during a power failure;
Lt; / RTI >
The power supply unit
The camera module, and the control processor so as to operate normally by using the charged battery even when a power failure occurs. (ESD) countermeasure circuit and a ground line, and is provided with a video recording function and a wireless communication function,
The management server
The mobile communication device may provide an application program or related software to the mobile communication device to support the wireless communication control function of the door lock device and the mobile communication device and provide unique information and product information for the door lock device through the mobile communication device Receiving the login information through the mobile communication device, authenticating the unique information or product information of the door lock device, performing an authentication process, providing a service through the application program,
The image data transmitted by the camera module
And an image clip format including voice data. The intelligent digital door lock system having a video storage function and a wireless communication function.
The method according to claim 1,
The wireless communication module
And a remote wireless communication module having a remote wireless communication function. The control signal and the video data are transmitted and received between the control processor and the management server according to an adjacent local communication terminal or a remote communication method, And transmitting the lock / unlock control signal between the mobile communication device and the control processor, and a wireless communication function.
The method according to claim 1,
The control processor
A gray level value and a brightness value are extracted from at least one frame of image data, which is a previous image, and then the gray level value and the brightness value are divided into a plurality of preset sectors, and the gray level value (UV) Respectively, and stores the calculated average values,
After the tone value and the brightness value are extracted from the image data of at least one frame which is an image, the tone value and the brightness value are divided into a plurality of preset sectors, and the tone value (UV) and the brightness value (Y) Respectively, and stores the calculated average values,
The average value of the tone values and brightness values of the divided sectors of the previous frame image data in units of sectors by the respective coordinate values is designated as an average value of tone values and brightness values of the divided sectors of the frame image data A sector having a difference between the tone value and the average value of brightness values of the divided sectors is detected as having a motion change, and an image storing function for generating an event indicating that a motion has been detected and an intelligent digital Door lock system.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030036273A (en) 1998-06-18 2003-05-09 김좌순 Control system for doorlock
KR20060083803A (en) * 2005-01-18 2006-07-21 엘지전자 주식회사 Image processing device and method for plasma display panel
KR20110003773U (en) * 2011-03-14 2011-04-19 주진수 Office Face Recognition Digital Door Lock System
KR20140124496A (en) * 2013-04-17 2014-10-27 (주)정직한기술 IP Camera For Controling Open of Portal Door
KR20150035644A (en) * 2013-09-27 2015-04-07 숭실대학교산학협력단 Digital Door-Lock and Door-Lock Control System and Control Method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030036273A (en) 1998-06-18 2003-05-09 김좌순 Control system for doorlock
KR20060083803A (en) * 2005-01-18 2006-07-21 엘지전자 주식회사 Image processing device and method for plasma display panel
KR20110003773U (en) * 2011-03-14 2011-04-19 주진수 Office Face Recognition Digital Door Lock System
KR20140124496A (en) * 2013-04-17 2014-10-27 (주)정직한기술 IP Camera For Controling Open of Portal Door
KR20150035644A (en) * 2013-09-27 2015-04-07 숭실대학교산학협력단 Digital Door-Lock and Door-Lock Control System and Control Method thereof

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