KR20040052300A - Device and method for controlling lock/release door - Google Patents

Abstract

Door opening and closing door sensor including a door bell sensor for generating a door bell detection signal when the door bell is pressed, a memory for storing a password and a user's terminal number, a door opening and closing unit for controlling the door opening and closing, and a camera for photographing a visitor. The control method of the device, when the door bell detection signal is generated, dialing the phone number stored in the memory to form a call path, and transmits a picture of the visitor photographed by the camera through the formed call path, between the visitor and the subscriber The process of conducting a call to confirm the visitor's identity, receiving a password to open the door generated after confirming the visitor's identity in the call process, comparing the stored password when receiving the password, and opening and closing the door when the two passwords match. Control is made by opening the door.

Description

Door opener and method {DEVICE AND METHOD FOR CONTROLLING LOCK / RELEASE DOOR}

The present invention relates to a door opening and closing device and method, and more particularly to a device and method that can control the opening and closing of the door by identifying the visitor's identity at a remote location.

In general, the door of the home is composed of a mechanical and electronic opening and closing device. The mechanical switching device opens and closes the door using a key, and the electronic switching device opens and closes the door using a button or a fingerprint. There is also a hybrid switchgear in which the above mechanical and electronic are mixed. The door opening and closing device is designed to be opened or closed by using a key or the like from the outside as described above.

Therefore, in the case of using the door opening and closing method as described above, in order to open the door, there must be a person or a key at all times in the house. However, when a relative visits, there is a problem that the visitor has to wait until a person comes because the door cannot be opened without a person in the house. Modern homes also tend to have a growing number of families who are leaving their homes as couples earn double income. In this case, the children should carry the key or keep the key in another place. In this case, if the child loses the key, the children will not be able to enter the house, which may cause another problem. And if a young child carries a key, a third party may have theft problems.

Accordingly, an object of the present invention is to provide an apparatus and method for opening and closing a door in a remotely spaced position.

Another object of the present invention is to provide an apparatus and method for opening and closing a door by remotely controlling the identity of a visitor at a remotely spaced location during a home visit.

Door opening and closing device according to an embodiment of the present invention for achieving the above object is a door bell sensor for generating a door bell detection signal when detecting the pressing of the door bell, a memory for storing the password and the terminal number of the user, and the door Accessing and outputting a terminal number stored in the memory when a bell detection signal is generated, generating a control signal for forming a call path between the visitor and the terminal when the terminal responds, and a password received from the terminal and a password stored in the memory Compares and compares the control unit to generate a door open control signal, and transmits the terminal number output from the control unit to the terminal, and transmits a response signal to the control unit in response to the terminal, and generates the call path formation control signal from the control unit. An interface unit for forming a communication path between the terminal and the visitor; The door opening and closing unit may be configured to open a door by the door opening control signal output from the controller.

The door has a door bell sensor for generating a door bell detection signal upon detecting the door bell being pressed, a memory for storing a password and a terminal number of the user, a door opening / closing part for controlling the door opening and closing, and a camera for photographing the visitor. The control method of the switchgear, dialing the phone number stored in the memory when the doorbell detection signal occurs, and forming a call path, and transmits the picture of the visitor taken by the camera through the formed call path Performing a call to confirm the visitor's identity between the subscriber and the telephone number subscriber, receiving a password for opening a door generated after confirming the visitor's identity in the call process, and comparing the stored password with the received password. The process of opening the door by controlling the door opening and closing when two passwords match It is characterized by.

1 is a view showing the configuration of a door opening and closing device according to an embodiment of the present invention

2 is a diagram illustrating a flow of a door opening and closing procedure according to an embodiment of the present invention.

3 is a diagram illustrating a flow of a door opening and closing procedure according to another embodiment of the present invention.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that the same components in the figures represent the same numerals wherever possible.

In the following description, specific details such as doorbell input time, dialing frequency, etc. are shown to provide a more general understanding of the present invention. It will be apparent to one of ordinary skill in the art that the present invention may be readily practiced without these specific details and also by their modifications.

1 is a view showing the configuration of a door opening and closing device according to an embodiment of the present invention.

Referring to the configuration of FIG. 1, the control unit 111 controls the performance of a function of remotely controlling the door opening and closing by confirming the visitor identity according to the embodiment of the present invention. The memory 113 may be composed of a program memory and a data memory. The program memory stores operation programs of the door opening and closing device, and in particular, stores a program for remotely controlling door opening and closing according to an embodiment of the present invention. The data memory has buffers for storing data generated during the execution of the program, and also has buffers for storing information according to an embodiment of the present invention. The buffers of the memory 113 may include a timer buffer for counting a set time or a number of dialing times, a melody buffer for storing melody of the doorbell, a password buffer for storing a password for opening the door, and storing a picture of the visitor. It may be provided with a photo buffer for. The first key input unit 115 is located in the home, and includes a key for controlling the opening and closing of the door, an interphone key, and keys for dialing.

The door bell sensor 121 is installed outside the door and detects that the door bell is pressed and notifies the control unit 111. The door sensor 123 is installed in the door and detects the opening and closing of the door and notifies the control unit 111. The door opening and closing unit 125 performs the opening and closing operation of the door according to the door opening and closing control signal of the control unit 111. The second key input unit 127 is installed outside the door and includes a door bell key.

The camera 131 is installed outside the door and is driven when the door bell key is generated to photograph the visitor. The image processor 133 adjusts the image signal photographed by the camera 131 to fit the size of the display unit 135. When the photographing command is generated in the controller 111, the image processor encodes the image signal output from the camera 131 as a still image and outputs it to the controller 111. The display unit 135 displays an image signal output from the image processor 133.

The microphone 141 and the speaker 143 are installed outside the door. The audio processor 145 processes the audio signal output from the microphone 141 under the control of the controller 111 and outputs the audio signal output to the line interface unit 147 or the audio signal output from the line interface unit 147 and outputs the audio signal to the speaker 143. do.

The line interface unit 147 functions as a telephone line interface and an interphone line interface. The line interface unit 147 functions to interface the audio signal output from the audio processor 145 with the interphone and telephone line. After converting to the transmission to the control unit 111. In the embodiment of the present invention, it is assumed that the line interface unit 147 includes all the telephone functions in the console box installed in the home. The line interface unit 147 is a DTMF (Dual Tone Multi-Frequency) generator (DTMFgenerator) for dialing the telephone number output from the control unit 111, DTMF receiver for converting the received DTMF signal into digital data, DTMF receiver Tone detectors for detecting the tone signal is provided. Accordingly, the line interface unit 147 may be a home telephone. In addition, the line interface unit 147 may have an interface function for communicating with a remotely spaced person. Accordingly, the line interface unit 147 may be replaced with a mobile phone module or a network capable of performing data communication.

The voice synthesizer 151 stores voice information according to the door opening and closing, and accesses the voice information under the control of the controller 111 to process the voice signal and outputs the voice signal to the audio processor 145. The voice synthesizer 151 may be implemented as a voice memory.

Referring to FIG. 1, the door opening and closing apparatus according to the embodiment of the present invention controls the opening and closing of the door by identifying the visitor at a remote position. To this end, if there are no people in the home or there are only young children, the door can not be opened, the user sets the missed mode in the door opening and closing device. When the absent mode is set, the door opening and closing device is remotely controlled to control the opening and closing of the door.

When the visitor presses the doorbell on the second key input unit 127 while the missed mode is set, the doorbell sensor 127 detects this and notifies the control unit 111. From this time, the control unit 111 counts the time, and the doorbell is set. When the time elapses, the controller 111 dials the telephone number stored in the memory 113. When the subscriber of the telephone number responds, the controller 111 controls the audio processor 145 and the line interface 147 to establish a voice call path. Form. In addition, the camera 131 controls the camera 131 to take a picture of the visitor and transmits the picture to the subscriber through the line interface unit 147. In the embodiment of the present invention, it is assumed that the visitor is photographed and transmitted as a still image. However, when the transmission line having a high transmission rate is used, the visitor may also be transmitted as a video screen. In addition, the embodiment of the present invention has been described assuming that a picture is transmitted together when forming a call path. Therefore, the telephone number stored in the memory 111 may be a mobile phone having a display unit. However, if the visitor's status is not visually confirmed, a general telephone without a display may be used.

When the visitor's identity is confirmed in the state of performing a call function with the visitor as described above, the user dials a password for opening the door by using the telephone in the call. Then, the password is converted into digital data through the line interface unit 147, and the control unit 111 compares the received password with the password stored in the password buffer of the memory 113. At this time, if the two passwords match, the control unit 111 controls the door opening and closing part 125 to open the door. Therefore, subscribers of remotely-divided telephone numbers in the absence of people in the home can check the user's identity through the telephone and then open the door to enter the visitor's home.

2 is a flowchart illustrating a door opening and closing procedure according to an embodiment of the present invention.

Referring to FIG. 2, the doorbell sensor 121 is a sensor that is turned on when the doorbell located at the second key input unit 127 is pressed. Therefore, when the door bell is pressed, the door bell sensor 121 notifies the control unit 111 of the pressed signal of the door bell. Then, the control unit 111 detects that the doorbell has been pressed in step 211, accesses the doorbell audio signal stored in the melody buffer of the memory 113, and outputs it to the audio processor 145. The audio processor 145 outputs the doorbell melody. Output through speaker 134. In addition, the doorbell melody is generated in the home via the interphone 149. At this time, if there is a person in the home, when the interphone 149 is operated, a call path consisting of the line interface, the audio processor 145, the microphone 141, and the speaker 143 is formed to enable a voice call between the visitor and the person in the home. At this time, if a person in the home generates a door open / close signal through an interphone, the control unit 111 detects this and generates a door open signal for releasing a door lock to the door open / close unit 125. Then, the door opening and closing part 125 releases the door lock state. When the door is opened, the door sensor 123 notifies the control part 111 of the opening of the door. In addition, the person in the home can manually unlock the door opening and closing part 125. In this case, the door sensor 123 detects the opening of the door and notifies the control unit 111 when the door is opened. Accordingly, when the control unit 111 detects the pressing of the door bell, the control unit 111 checks the state of the door sensor 123 in step 213. When the door sensor 123 detects the opening of the door, the control unit 111 detects this in step 213 and ends the procedure.

However, if the door open signal is not received from the door sensor 123 within the first set time, the control unit 111 detects this by performing steps 213 and 215 and waits for the next doorbell input. Here, the first setting time is set in consideration of the time taken to open and close the door after the door bell rings when there is a person in the home. In the embodiment of the present invention, it is assumed to be about 30 seconds. In addition, it is assumed here that the first predetermined time is a time counted at the time when the first doorbell rings. If the doorbell rings after the first preset time elapses, the controller 111 determines whether the missed mode is set in step 219. The missed mode refers to a mode for controlling the opening and closing of the door by checking a visitor at a remotely spaced position. If the missed mode is not set, the controller 111 returns to step 211.

However, if it is detected in step 219 that the missed mode is set, the controller 111 accesses and outputs the phone number stored in the phone number buffer of the memory 121 in step 221. Then, the line interface unit 147 converts the telephone number output from the control unit 111 into a DTMF signal and outputs the telephone number on the telephone line. Thereafter, the control unit 111 waits for a response from the subscriber of the set phone number after performing the dialing. In this case, the response signal received through the telephone line may be a ringback tone. When the ringback tone is received, the line interface unit 147 notifies the controller 111 of this. Therefore, when receiving the response signal from the line interface unit 147, the control unit 111 detects the response in step 223 and forms a call path in step 227. However, if the response signal is not received in step 223, the controller performs redialing while performing steps 225 and 223. That is, if there is no response after dialing the preset phone number, the controller 111 performs the re-dialing operation of the set number of times. In the embodiment of the present invention, it is assumed to be three times. In addition, when two or more telephone numbers are stored in the memory 113, the control unit 111 may alternately dial other telephone numbers while performing steps 221 to 225 repeatedly. If there is no response even after the dialing is performed the set number of times, the controller 111 detects this in step 225 and ends the procedure of the door opening / closing control operation.

When the response is detected in step 223, the controller 111 controls the audio processor 145 and the line interface unit 147 in step 227 to form a call path through the line interface unit 147, the audio processor 145 and the microphone 141, and the speaker 143. In step 229, the call service is performed between the visitor and the subscriber of the telephone number. In addition, the control unit 131 drives the camera 131 to take a picture of the visitor in step 227, and the image processing unit 133 displays a picture of the visitor photographed by the camera 131 on the display unit 135 and simultaneously compresses and outputs the picture of the visitor. The compressed and output video signal is output through the line interface unit 147 and stored in the memory 113. Then, the subscriber of the telephone number can perform a call function with the visitor while viewing the picture of the visitor output through the line interface unit 147.

At this time, the subscriber of the telephone number in the call state may receive a screen in which the visitor's picture is not taken or, if the identification of the visitor is unclear because the visitor's picture is not clear, the subscriber may request re-shooting. In this case, the telephone number subscriber generates key data requesting to retake the picture. In this case, the retake request key may be implemented using a specific key of the phone. When the re-shooting request key is received, the control unit 111 detects this in step 233, and in step 235, the camera 131 drives the camera 131 to retake a picture of the visitor, and the image processor 133 photographs the visitor taken by the camera 131. Is displayed on the display unit 135 and compressed and output. The control unit 111 outputs the compressed coded video signal through the line interface unit 147 and stores the compressed video signal in the memory 113. At this time, the control unit 111 overwrites the previous picture data of the memory 113.

And if the visitor's identity is confirmed during the call, the subscriber of the telephone number can be opened by remotely controlling the door opening and closing device. In this case, the subscriber of the telephone number dials a password for opening the door, and the dialed password is converted into digital data in a DTMF receiver of the line interface unit 147 and then applied to the control unit 111. Then, the control unit 111 detects this as a password in step 231 and compares it with the password stored in the password buffer of the memory 113 in step 239. In this case, if the received password and the password stored in the memory 113 match, in step 241, the door opening signal is output to the door opening / closing part 125, and the door opening / closing part 125 opens the door. However, if the two passwords do not match in step 239, the voice synthesis unit 151 is controlled to output a voice message indicating that the input of the password is incorrect. The voice message output from the voice synthesizer 151 is transmitted to the subscriber of the telephone number through the line interface 147. When the password is re-entered from the subscriber, the operation is repeated.

However, if the visitor's identity is not confirmed or determined to be an unwanted visitor during the call process, the user presses or hooks off the call termination key. Then, the control unit 111 detects this in step 237 and ends the door opening and closing procedure without opening the door.

3 is a flowchart illustrating a door opening and closing control procedure according to another embodiment of the present invention.

Referring to FIG. 3, the controller 111 determines whether the missed mode is set in step 311. At this time, if the missed mode is not set, the normal door opening and closing control procedure is performed. However, when the missed mode is set, the control unit 111 checks whether the door bell pressing detection signal is generated from the door bell sensor 121 in step 313. In this case, when the door bell is detected from the door bell sensor 121, the camera 131 is driven in step 315 to take a picture of the visitor who pressed the door bell. Then, the image processor 133 displays a picture of the visitor photographed by the camera 131 on the display unit 135 and compresses and outputs the picture. The controller 111 stores the compressed coded picture of the visitor in the photo buffer of the memory 113. Therefore, the photograph buffer of the visitor who visited while not in the memory 113 is accumulated and stored sequentially. When accumulating and storing the visitor's photos as described above, the user can sequentially access the photographs of the visitors stored in the photo buffer of the memory 131 and display them on the display unit 135, so that the visitor who visited the absent state can be confirmed.

Thereafter, the control unit 111 waits for the setting time, and when the setting time has elapsed, the controller 111 detects this and checks whether the door bell is pressed again. At this time, if the doorbell is not detected after the set time has elapsed, the control unit 111 terminates the door opening and closing control procedure. However, if the doorbell is detected after the set time has elapsed, the control unit 111 detects this in step 321 and dials the phone number stored in the phone number buffer of the memory 113 in step 323.

Subsequently, operations 323 to 345 are performed in the same procedure as operations 221 to 243 of FIG. 2.

As described above, the door opening and closing device according to the embodiment of the present invention may control the opening and closing of the door by confirming the visitor's identity at a remote location. Therefore, the identity of the visitor can be checked in real time, and if the identity is confirmed, the visitor can be opened without a person so that the visitor can enter the house. Even if you do not meet the time, there is an advantage that can not wait for the guests outside. Especially in homes with two parents, there is an advantage that parents can open and close the door of the house remotely without giving a key to the children. You can also accumulate and store visitors by taking and storing pictures of visitors.

Claims (7)

In the door opening and closing device, A door bell sensor which generates a door bell detection signal when the door bell is pressed; A memory for storing a password and a terminal number of the user; When the doorbell detection signal is generated, the terminal number stored in the memory is accessed and output, and when the terminal responds, a control signal for forming a call path between the visitor and the terminal is generated, and the password and the memory received from the terminal are generated. A control unit for comparing the stored passwords and generating a door open control signal if they match; An interface unit which transmits a terminal number output from the controller to a terminal and transmits a response signal to the controller in response to the terminal, and forms a call path between the terminal and the visitor when the call path formation control signal is generated by the controller; The door opening and closing control device comprising a door opening and closing unit for opening the door by the door opening control signal output from the control unit. The method of claim 1, A camera that takes pictures of visitors, And an image processor for compressing and encoding the visitor's picture taken by the camera. And the control unit transmits the photo of the compressed coded visitor when the call is formed. The telephone line interface unit according to claim 2, wherein the interface unit is a telephone line interface unit, The telephone line interface unit, DMT transmitter for converting telephone number into DFM signal, A DFM receiver for converting a DTP signal of a received password into digital data; And a tone detector for detecting a response tone received. The door opening / closing door door sensor includes a door bell sensor for generating a door bell detection signal when a door bell is pressed, a memory for storing a password and a user terminal number, a door opening / closing part for controlling the door opening, and a camera for photographing a visitor. In the control method of the device, Forming a call path by dialing a phone number stored in the memory when the doorbell detection signal is generated; Transmitting a picture of the visitor photographed by the camera through the formed call path, and performing a call to confirm visitor identity between the visitor and the subscriber; Receiving a password for opening a door generated after the identification of the visitor in the call process; The door opening and closing control method according to claim 1, wherein the password is stored when the password is received and the door is opened by controlling the door opening and closing part when the two passwords match. The door opening and closing control method according to claim 4, further comprising: re-taking the camera when receiving the re-shooting request signal in the busy state, re-taking a photograph of the visitor, and transmitting it to the terminal. . The door opening / closing door door sensor includes a door bell sensor for generating a door bell detection signal when a door bell is pressed, a memory for storing a password and a user terminal number, a door opening / closing part for controlling the door opening, and a camera for photographing a visitor. In the control method of the device, Storing the photograph of the visitor by driving the camera when the doorbell detection signal is generated in the missed mode; When the doorbell detection signal is generated after a set time has elapsed, dialing a phone number stored in the memory to form a call path; Transmitting a picture of the visitor photographed by the camera through the formed call path, and performing a call to confirm visitor identity between the visitor and the subscriber; Receiving a password for opening a door generated after the identification of the visitor in the call process; The door opening and closing control method according to claim 1, wherein the password is stored when the password is received and the door is opened by controlling the door opening and closing part when the two passwords match. The method of claim 6, further comprising: re-taking the camera when the re-shooting request signal is received in the call state to retake a picture of the visitor and transmit the picture to the terminal. .