KR20060073790A - Apparatus and method for remote communication between a door phone and a portable mobile communication terminal - Google Patents

Abstract

The present invention relates to a telecommunication device and method between a door phone and a portable mobile communication terminal in a ubiquitous environment, and sets the door phone (interphone) to be automatically connected to the portable mobile communication terminal in the outgoing mode, and transfers the incoming call when absent. Storing a phone number and a password for opening and closing the remote door phone; When the visitor presses the call button, the user checks the setting in the outing mode. When the visitor is set in the outing mode, the call is transferred to the mobile phone number of the mobile communication terminal set by the video-phone client-to-phone method and acquired through the camera and the microphone. Transmitting a visitor's video or voice in real time by setting a call to the mobile number using a CDMA modem; Automatically transmitting a missed message in a phone-to-client manner when the incoming call is not received for a predetermined time, and providing a missed date / time indication function and a missed automatic recording / playing function; When a user receives a call with a visitor, making a call in real time while watching the visitor's voice and video as if receiving a call with the visitor at home; After the user authentication by the encrypted password, and controlling the opening and closing of the door remotely from the portable mobile communication terminal.

Ubiquitous, Door Phone, Portable Mobile Terminal, Telecommunication

Description

Apparatus and method for remote communication between a door phone and a portable mobile communication terminal in ubiquitous environment             

1 is a screen of a conventional video door phone.

2 is a configuration diagram of a telecommunication device between a door phone and a portable mobile communication terminal in a ubiquitous environment according to the present invention.

3 is a flow chart illustrating a remote communication method between a door phone and a portable mobile communication terminal in a ubiquitous environment according to the present invention.

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

10: portable mobile communication terminal 20: door phone (interphone)

21: camera 22: image processing unit

23: microphone 24: speaker

25: voice processing unit 26: LCD driver

27: LCD display 28: Call button

29: control unit 30: memory

31: CDMA modem 32: door opener                 

33: video storage device 34: timer

The present invention relates to a telecommunication device and a method between a door phone and a portable mobile communication terminal in a ubiquitous environment. In particular, the present invention provides a video door phone (interphone) with a mobile communication terminal and a long distance communication by a person going out of the house by the function of going out. The present invention relates to a telecommunication device and a method between a door phone and a portable mobile communication terminal in a ubiquitous environment in which a person presses a doorbell of a visitor and immediately recognizes that the doorbell is not an empty house.

In general, home automation (UBIquitous Computing) environment by using a mobile communication terminal such as Pocket-PC (PDA) and IMT-2000 phone, and remote control and remote monitoring via wired and wireless Internet, home automation ( High quality and expensive home such as fingerprint control door such as remote control / remote metering), home security (security / monitoring, crime prevention / disaster prevention / gas leak detection), home surveillance camera, home appliances control, temperature control, etc. Provides home networking services.

As shown in Figure 1, the conventional video door phone (Video Door Phone) is a speaker phone call function, visitor entrance video confirmation / call function through the 4-inch color TFT-LCD monitor, outing function, security / disaster prevention function, Home technology is being developed with ergonomic design along with digital door locks, providing password control, mischief prevention, door access control, cell phone connection, TV phone connection and more.

◈ Call function

1) Front door and door opening function

You can talk to the visitors at the door through the video door phone and open the door automatically by pressing the door open button (only for the door with the switchgear).

2) Security intercom call function

Up to three or more slave video doorphones (such as doors, back doors, guard rooms, etc.) can be used as a star topology to the master video doorphone (home). You can call when this happens.

3) Built-in phone function

◈ Video Function

1) Visitor check function

You can check the appearance of visitors and provide the ability to check what is happening outside the door at home.

2) Door camera Pan-tilt camera angle adjustment

According to the user's purpose, the pan-tilt camera system can adjust the angle before and after up, down, left and right according to the function.

◈ Video memory device

It is used like a video door phone and is a state-of-the-art system that can record the visitor's missed appearance.

1) Automatic recording / playback function

This function automatically records the visitor's appearance when going out and plays / checks after returning home. (Up to 8, 16 screen options)

2) time display function

It provides the function to display the time when using the monitor of the video door phone.

3) Instant recording and playback function

Watching the video TFT-LCD monitor of the 4 inch or 5 inch size of the video door phone, it provides security features that instantly record the video and audio scenes of visitors from the front door.

However, since a video door phone that interworks with a conventional mobile phone is based on a home automation or home networking system, the PAN is connected to a home server or a home gateway to provide ubiquitous computing services. (Personal Area Network) There is a problem that the construction cost is high.

The present invention has been proposed to solve the problems of the prior art, an object of the present invention is to provide a long-distance communication between the video door phone (interphone) and the portable mobile communication terminal in the ubiquitous environment through a mobile communication network by the person going out by the function If the house is emptied, the doorbell of the person who comes to the door immediately responds to provide a telecommunication device between the door phone and the portable terminal in a ubiquitous environment that recognizes that the house is not empty.

Another object of the present invention is to provide a telecommunication method between a door phone and a portable mobile communication terminal in a ubiquitous environment which is particularly suitable for carrying out the device.

In order to achieve the object of the present invention, the present invention provides a video door phone (interphone) 20 to provide a remote call function and a local or remote door opening and closing function with a visitor and a home user or a remote portable mobile terminal user; And the user sets the door phone (interphone) 20 in the outgoing mode when the user is absent, and when the visitor presses the call button of the door phone (interphone) 20 in the ubiquitous environment, the user automatically moves to the preset mobile phone number when the user is absent. Connected to a terminal through a communication network to provide a video call with a visitor, and after confirming user authentication by a password encrypted / decrypted by a specific encryption algorithm, the door opening and closing device of the door phone (interphone) 20 remotely from the terminal. It provides a telecommunication device between the door phone and the portable terminal in a ubiquitous environment, characterized in that the mobile terminal (10) that provides a control function to open and lock the 31.

In order to achieve the other object of the present invention, the present invention is set to automatically connect the door phone (interphone) to the portable mobile communication terminal in the outgoing mode when going out (S1), mobile phone number to be forwarded in the absence, remote video door Setting and storing a password for opening and closing the phone (S2); When the visitor presses the call button attached to the door phone (interphone) (S3) and checks whether it is set to go out mode (S4), if it is set to go out mode, the mobile phone is set to P2P mode by mobile phone preset mobile phone Call forwarding is connected to the mobile phone number of the communication terminal (S5), and the call or video of the visitor acquired through the camera and microphone is set to the mobile phone number of the mobile terminal set by the CDMA modem. Buffering in real time to transmit a video or voice of the visitor through RTP / UDP / IP (S6); If the user checks the incoming call and does not receive it for a certain time (S7), the IP address and port number of the video phone client of the door phone (interphone), which is preset in the phone-to-client manner, is automatically received. Automatically transmitting an out of office message to the user (S8), providing an out of date / time display function (S9) and a missed automatic recording / playback function (S10); And when the user receives a call with the visitor, making a call in real time while watching a voice and a video of the visitor transmitted from the door phone (interphone) as if the user receives the call at home (S11). Provides a long-distance communication method between the door phone and a portable mobile communication terminal in a ubiquitous environment.

In addition, the present invention, if it is necessary to open and close the door remotely in the portable mobile communication terminal, enter a password to encrypt by a specific encryption algorithm remotely to the IP address and port number of the video phone client of the door phone (interphone) After transmission (S12), the encrypted password data received from the videophone client of the door phone (interphone) is decrypted (S13) and compared with the password set in the memory to check whether the password is the same (S14) for user authentication. Confirming; And receiving a door open signal or a door lock signal from the portable mobile communication terminal to control the door opening and closing device to remotely control the opening and closing of the door after user authentication (S15).                     

In addition, the present invention when the visitor presses the call button of the door phone (interphone), if not in the outgoing mode is operated as a general door phone (interphone) function to connect with the door phone (interphone) in the house (S16) and the visitor In step S17, the user of the premises manually opens and closes the door by checking the visitor by making a call.

In addition, the present invention in the step S8-S10 by the initial setting of the video door phone function of the menu screen in the portable terminal 10, the option to automatically send out of the absence message or the absence of the home (option) option, the date of the visitor / Time display function, the automatic recording and playback function by the function, if you do not talk to the portable mobile terminal user for a certain period of time when the automatic miss message sent from the portable mobile terminal automatically sent to the video door phone The video storage device attached to the video door phone receives the display date and time according to the recording announcement at a predetermined time, and records the video including the visitor's voice and video taken at the front door of the missed video door phone. Storage to memory and provide automatic recording / playback It further comprises.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following examples are merely to illustrate the present invention is not limited to the contents of the present invention.

Referring to FIG. 2, a telecommunication device between a video door phone and a portable mobile terminal in a ubiquitous environment according to the present invention may include a call function and a local or local call between a visitor using a door phone and a home user or a remote portable mobile terminal user. A video door phone (interphone) 20 which provides a remote door opening and closing function; And set the video door phone (interphone) 20 to go out mode when the user is absent, and when the visitor presses the call button of the door phone (interphone) 20 in a ubiquitous environment, A call is connected to a portable mobile communication terminal such as a camera phone or an IMT-2000 phone by a call setting signal through a mobile communication network to a mobile phone number, and the call is acquired from the camera and the microphone of the door phone (interphone). It is possible to make a video call with a visitor by transmitting a visitor's voice and video in real time through a video call client-to-phone method (P2P method), and use a specific encryption of a public key or a private key method. After confirming user authentication with a password encrypted / decrypted by an algorithm (eg, RSA algorithm, DES algorithm, etc.), the mobile terminal 10 establishes a mobile communication network. And a portable mobile communication terminal 10 that remotely transmits a door open signal or a door lock signal to provide a function of opening and locking the door open / close device 31 of the door phone (interphone) 20.

In addition, the timer 34 is connected to the control unit 29 of the door phone (interphone) 20, and can check the visit time when the call button of the video door phone is clicked; And a video memory, which is connected to the control unit 29 and used as a video door phone, and displays data and a visit time of the visitor's video and audio when going out or in the home, and reproduces the recorded visitor's video and audio. The apparatus 33 further includes.

The door phone (interphone) 20 is installed on the front door or the exterior door of the doorway, and the video phone client program as a video door phone that allows the user to make a call while viewing the voice and video of the visitor from a remote portable terminal when the door is set in the home or out Is installed,

The visitor's voice is processed by a small digital camera 21 for acquiring the visitor's video, an image processor 22 for processing the visitor's video by a video codec, and an audio codec. A voice processor 23 for receiving the voice of the visitor, a microphone 24 for receiving the visitor's voice, and a speaker 25 for outputting the voice of a user existing in the home or a user's voice transmitted from a portable mobile communication terminal at a remote location. And the LCD display unit 27 for outputting the missed message display information or the situation information to the visitor by the LCD driver 26 on the LCD screen, and when the visitor visits the doorbell of the door phone (interphone) 20. A push button 28, a control unit 29, which is composed of a microprocessor and controls the overall operation of each device, an operating system, an interphone image, and a voice processing application program are stored. Memory 30 for storing the mobile phone number to be forwarded in the absence of the preset and the password data for opening and closing the remote door phone in the portable mobile communication terminal 10, and the door phone (interphone) 20 in the absence of home When set to the outgoing mode CDMA modem 31 for providing a mobile communication function remotely with the portable mobile communication terminal 10 of the remote place via the mobile communication network to the mobile phone number set by the user, and the door phone ( The door opening and closing device 32 for opening and closing the door by the opening and locking function of the interphone (20).

Since the door phone (interphone) 20 and the portable mobile communication terminal are different operating systems and hardware environments, the same virtual machine (eg, JVM, GVM, KVM, etc.) for communication protocol (Protocol) is mounted so that voice and video communication are possible. To provide.

In the ubiquitous environment according to the present invention, a device and method for telecommunication between a video door phone and a portable mobile communication terminal are relatively expensive home server or home gateway for home networking. Although not using a home automation system, it is connected to a control unit and can be interworked with a home server for home networking by adding an external interface.

3 is a flowchart illustrating a remote communication method between a video door phone and a portable mobile communication terminal in a ubiquitous environment according to the present invention.

Set the doorbell of the video door phone (interphone) 20 to automatically connect with the portable mobile communication terminal 10 in the outgoing mode when going out (step S1), the mobile phone number to be forwarded in the absence of the house, remote video door phone A user authentication password for controlling opening and closing is set and stored (step S2).

When the visitor presses the call button attached to the door phone (interphone) 20 (step S3), it checks whether it is set to go out mode (step S4), and if the visitor is set to go out mode, the door is in peer-to-peer mode. Video call of the phone (interphone) 20 to the mobile phone number of the mobile terminal 10 preset by the client-to-phone method of call forwarding and access (step S5), the video of the visitor obtained through the camera and microphone or Set the call to the mobile phone number of the portable mobile communication terminal set by the CDMA modem 31 through the mobile communication network and buffer the voice in real time to transmit the video or voice of the visitor through RTP / UDP / IP. (Step S6), if the user checks the incoming call (step S7) for the incoming call and does not receive it for a predetermined time, the image of the door phone (interphone) which is preset in the Phone-to-Client method is automatically IP address of telephone client The absence message is automatically transmitted to the port number (step S8), and the absence date / time display function (step S9) and the automatic miss recording / playback function are provided (step S10).

At this time, by the initial setting of the video door phone function of the menu screen in the portable mobile communication terminal 10, the automatic missed message transmission function, the date / time display function of the visitor, automatic recording as an option item when going out or in the house By the selection function for executing the playback function, if the automatic missed message transmitted from the portable terminal is automatically transmitted to the video door phone when there is no call with the portable mobile terminal user for a predetermined time, it is attached to the received video door phone. The video recording device displays the date and time of the visit according to the recording time, and records the video including the voice and video of the visitor taken from the front door of the missed video door phone (8 screens and 16 screens or more). It further includes the steps of storing in memory through the device and providing automatic recording / playback function. .

When the user receives a call with the visitor, the user makes a call in real time while watching the voice and video of the visitor transmitted from the video door phone (interphone) as if he is in the house (step S11).

When the door needs to be opened and closed remotely, the portable mobile communication terminal inputs a password and encrypts the data through a mobile communication network by encrypting it using a specific encryption algorithm using a public key or a private key method. Encrypted password received from the videophone client of the doorphone (interphone) after transmitting to the videophone client of the doorphone remotely to the IP address and port number of the videophone client of the doorphone (interphone) (step S12) After decrypting the data (step S13) and confirming whether or not it is the same as compared with the password set in the memory (step S14), after confirming user authentication, a door open signal or a door lock signal is received from the portable mobile communication terminal 10. By controlling the door opening and closing device 32, the opening and closing of the door can be controlled remotely (step S15).

At this time, when the visitor presses the call button of the video door phone (interphone), if it is not in the outing mode, it is operated as a general video door phone (interphone) function to connect with the door phone (interphone) in the home (step S16) to make a call with the visitor. By checking the visitor, the user in the home opens and closes the door manually (step S17).

If you do not have a person at home or if you press the doorbell (interphone), press the doorbell, the phone will be connected to the mobile phone to answer even if there is no person at home. If the doorbell is pressed, you will be connected to the phone and you can talk to the owner and the person who pressed the doorbell.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications of the present invention without departing from the spirit and scope of the invention described in the claims below Or it may be modified.

As described above, in the ubiquitous environment according to the present invention, a device and a method for remote communication between a door phone and a portable terminal may be pressed into a mobile phone by pressing a call button of a door phone (interphone) even when there is no person or at home. When the door is connected, you can answer even if there is no person at home, and if you set the doorbell to go out and set to automatically connect to the phone, when the doorbell is pressed, it will be connected to the phone and you can talk with the house owner and the doorbell. It has an effect.

In addition, you can make a call with the visitor, such as the purpose of the visit, you can make an appointment again, and if you call to find out whether the shoplifter is empty or not, there is an effect that you can recognize that it is not empty.

Claims (7)

A video door phone (interphone) 20 that provides a remote call function and a local or remote door opening and closing function with a visitor and a home user or a remote portable mobile terminal user; And The user sets the door phone (interphone) 20 in the outgoing mode when the user is absent, and when the visitor presses the call button of the door phone (interphone) 20 in the ubiquitous environment, the mobile communication network is automatically set to the preset mobile phone number when the user is absent. Provides a video call with the visitor through the terminal through the user, after confirming the user authentication by the password encrypted / decrypted by a specific encryption algorithm, the door opening and closing device of the door phone (interphone) 20 remotely from the terminal ( 31) A telecommunication device between a door phone and a portable mobile communication terminal in a ubiquitous environment, characterized in that it comprises a portable mobile communication terminal (10) providing an opening and locking control function. The method of claim 1, The door phone (interphone) 20 is A camera 21 for obtaining a visitor's video; An image processor 22 for processing an image of a visitor by a video codec; A voice processor 23 for processing a visitor's voice by a voice codec; A microphone 24 for receiving a voice of the visitor; A speaker 25 for outputting a voice of an existing person in a house or a voice of a user of a portable mobile communication terminal at a remote location; An LCD display unit 27 for outputting missed message display information or situation information to the visitor by the LCD driver 26; A call button 28 in which the visitor presses the doorbell of the door phone 20. A control unit 29 configured as a microprocessor to control the overall operation of each device; A memory (30) for storing an operating system and an interphone image processing application program, and for storing a mobile phone number to be forwarded in the absence of a preset call by a user and password data for remote door phone opening and closing in the portable terminal 10; If the door phone (interphone) 20 is set to go out mode in the absence of premises to provide a mobile communication function remotely with the portable mobile communication terminal 10 of the remote place via the mobile communication network to the mobile phone number preset by the user A CDMA modem 31; And And a door opening and closing device (32) for opening and closing the door by an opening and a locking function of the door phone (interphone) 20. The telecommunication device between the door phone and the portable mobile communication terminal in a ubiquitous environment. The method of claim 2, A timer 34 connected to the control unit 29 of the door phone (interphone) 20 and capable of checking a visit time when a call button of the video door phone is clicked; And The video storage device is connected to the control unit 29 and used as a video door phone to display data and a visit time of the visitor's video and audio when going out or in the home, and to reproduce the recorded visitor's video and audio. The telecommunication device between the door phone and the portable mobile communication terminal in a ubiquitous environment, characterized in that it further comprises (33). Setting the door phone (interphone) to automatically connect with the portable mobile communication terminal in the outgoing mode when going out (S1), and setting and storing a mobile phone number to be transferred to the incoming call, a password for opening and closing the remote video door phone (S2); When the visitor presses the call button attached to the door phone (interphone) (S3) and checks whether it is set to go out mode (S4), if it is set to go out mode, the mobile phone is set to P2P mode by a preset mobile handset. Call forwarding is connected to the mobile phone number of the communication terminal (S5), and the call or video of the visitor acquired through the camera and microphone is set to the mobile phone number of the mobile terminal set by the CDMA modem. Buffering in real time to transmit a video or voice of the visitor through RTP / UDP / IP (S6); If the user checks the incoming call and does not receive it for a certain time (S7), the IP address and port number of the video phone client of the door phone (interphone), which is preset in the phone-to-client manner, is automatically received. Automatically transmitting an out of office message to the user (S8), and providing a missed date / time display function (S9) and a missed automatic recording / playback function (S10); And When the user receives a call with the visitor, the call is received in real time while watching the voice and video of the visitor transmitted from the door phone (interphone) as if it is received at home (S11). Long distance communication method between door phone and portable mobile communication terminal in ubiquitous environment. The method of claim 4, wherein When the door is to be opened and closed remotely by the portable mobile communication terminal, a password is inputted and encrypted by a specific encryption algorithm and remotely transmitted to the IP address and port number of the video phone client of the door phone (interphone) (S12). Thereafter, decrypting the encrypted password data received from the videophone Client of the door phone (interphone) (S13) and checking whether the password is the same by comparing with the preset password in the memory (S14) to confirm the user authentication; And After the user authentication, receiving a door open signal or a door lock signal from the portable mobile communication terminal to control the door opening and closing device to remotely control the opening and closing of the door (S15) door in the ubiquitous environment, characterized in that Telecommunication method between phone and portable mobile communication terminal. The method of claim 4, wherein When the visitor presses the call button of the door phone (interphone), if not in the outing mode, it operates as a general door phone (interphone) function and connects with the door phone (interphone) in the home (S16) to make a call with the visitor. The method of the remote communication between the door phone and the portable mobile terminal in a ubiquitous environment, characterized in that further comprising the step of opening and closing the door manually by the user of the home (S17). The method of claim 4, wherein In the step S8-S10, the mobile mobile communication terminal automatically sends an out-of-office message, an option to display the date / time of the visitor, automatically when the user is out of the house or the option by the initial setting of the video door phone function of the menu screen. By the selection function for executing the recording and playback function, the automatic missed message transmitted from the portable mobile communication terminal is automatically transmitted to the video door phone when there is no call with the portable mobile terminal user for a predetermined time. The video recording device attached to the door phone displays the date and time of the visit according to the recording time, and records the visitor's voice and video taken from the entrance door of the video door phone while not in memory. More steps to store in and provide automatic recording / playback function Telecommunications method between a door-phone and portable mobile communication terminal in the ubiquitous environment, characterized in that.

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