KR19990012344A - Door phone control method from remote location using automatic repeater - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

It is a technology that controls voice calls and door locks by calling a door phone from a remote place when the door phone is called using an automatic relay device.

I. The technical problem to be solved by the invention

When there is a visitor in the absence, the pager is called to leave the door phone identification code, and the remote control is called to control the call formation and door opening.

All. Summary of Solution of the Invention

When the visitor presses the call key and calls the door phone, when the visitor is away, the user registers the pager registered in advance and leaves the door phone identification code on the pager display device. By making a call with the visitor to open the door, the identity of the visitor and the door lock can be controlled at a remote location.

la. Important uses of the invention

It is to control door phone from remote place.

Description

Door phone control method from remote location using automatic repeater

The present invention relates to a door phone control method at a remote location, and more particularly, to a door phone control method for controlling voice calls and door locks by calling a door phone at a remote location when the door phone is called using an automatic relay device.

In general, the home automation system when the user presses the call key of the door phone installed in the front door, the incoming ring rings in the house, and then lifts the handset to make a call with the visitor.

However, in the conventional door phone call, if there is no person inside, the visitor's identity can be confirmed by checking the identity of the visitor, so that the door can not be opened if necessary.

Accordingly, an object of the present invention is to provide a door phone control method using an automatic repeater for controlling call formation and door opening by calling a pager when a visitor is absent and leaving a door phone identification code and calling an automatic repeater at a remote location. have.

In order to achieve the above object, the present invention calls a pager that is designated in advance when the call key of the door phone is pressed by the visitor, leaving the door phone call recognition code, and recognizing that the door phone is a call. Call to call the visitor or control the door to open the door.

1 is a block diagram of an automatic relay device according to an embodiment of the present invention.

2 is a control flowchart for calling a pager when there is a visitor according to an embodiment of the present invention.

3 is a control flowchart for controlling a door phone at a remote place according to an embodiment of the present invention.

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

1 is a block diagram of an automatic relay apparatus according to an embodiment of the present invention.

The key input unit 10 generates a telephone number registration key and a numeric key signal for inputting a telephone number. The memory 14 stores a program according to the present invention and stores a door phone call formation code, a door lock control code, a door phone call recognition code, and a pager number to contact. The central processing unit 12 receives the telephone number input from the key input unit 10 and controls the memory 12 to be stored in the memory 14, and when the call key of the door phone is pressed, dials the pager number stored in advance and calls the pager and stores the door. Controls to send a phone call recognition code. The switching circuit 16 is connected to a trunk line call, a door phone call path, etc. under the control of the CPU 12. The trunk line interface circuit 18, under the control of the central processing unit 12, communicates with the switch to interface between the automatic relay device and the remote site. The ring detection circuit 20 detects the ring signal received through the trunk line interface circuit 18 and applies it to the CPU 12. The door phone 26 includes a microphone and a speaker for the visitor to talk through the automatic repeater, and the door phone call key 28 allows the visitor to call the automatic repeater. The door line interface circuit 22 interfaces to make a call between the automatic repeater and the door phone 26 when the door phone call key is pressed. The door button detection circuit 24 detects that the door phone call key 28 is pressed and notifies the CPU 12. The door phone lock control circuit 30 controls the opening or closing of the door lock 32 by the control of the CPU 12. The DTMF detection circuit 32 detects the DTMF signal received through the trunk line interface circuit 18 and applies it to the CPU 12. The voice synthesizing unit 34 synthesizes the voice data stored under the control of the central processing unit 12 and transmits a guide message through the trunk line interface 18.

2 is a control flowchart for calling a pager when there is a visitor according to an embodiment of the present invention.

3 is a control flowchart for controlling a door phone at a remote place according to an embodiment of the present invention.

1 to 3 will be described in detail the operation of the preferred embodiment of the present invention.

First, the visitor presses the door phone call key 28 of the door phone installed at the entrance. At this time, the central processing unit 12 checks whether the door phone call key 28 is pressed through the door button detection circuit 24 in step 101, and proceeds to step 102 if the door phone call key 28 is pressed. In step 102, the central processing unit 12 controls the ring to ring. Then, in step 103, the handset is lifted to check whether there is a response to the door phone call, and if there is a response, the central processing unit 12 controls the switching circuit 16 to form a call with the visitor and the internal subscriber of the automatic repeater. However, if there is no response, the process proceeds to step 105 and checks whether the set time has elapsed, and if the set time has elapsed, proceeds to step 106. Waiting for the set time is a time waiting for the internal subscription of the automatic relay device is absent, and if there is no response to the door phone call for the set time, it is determined to be absent. In step 106, the central processing unit 12 controls the switching circuit 16 to calibrate the empty trunk line port through the trunk line interface circuit 18 and proceeds to step 107. In step 106, the CPU 12 checks whether a dial tone is detected and proceeds to step 108 when a dial tone is detected. In step 108, the CPU 12 reads the pager number registered in the memory 14 and performs dialing through the trunk line interface circuit 18. Then, in step 109, the CPU 12 checks whether the pager response signal is detected. If the pager response signal is detected, the CPU 12 proceeds to step 110 to read the door phone call recognition code registered in the memory 14 to perform dialing. When the pager call is terminated, the trunk line port is cut at step 111.

In this way, when the visitor calls the registered pager, the user of the remote repeater checks the door phone call code displayed on the display of the pager and calls the automatic repeater to make a call or open the door. The operation thereof will be described with reference to the flowchart of FIG. 3. In operation 201, the CPU 12 checks whether a ring signal is detected from the ring detection circuit 20, and proceeds to operation 202 when the ring signal is detected. In step 202, the central processing unit 12 controls the voice synthesizer 34 to send a guide message. For example, if the user wants to talk with the visitor, please press the code for the door phone call. Then, in step 203, the central processing unit 12 checks whether the formation code is received by the door phone call from the DTMF detection circuit, and performs a general function if the formation code is not received by the door phone call. However, when the code for the door phone call is received, the process proceeds to step 204 where the CPU 12 controls the voice synthesizer 34 to stop transmitting the voice guidance message and proceeds to step 205. In step 205, the CPU 12 controls the switching circuit 16 to connect the trunk line interface circuit 18 and the door line interface circuit 22, and then proceeds to step 206. In step 206, the central processing unit 12 makes a call with a visitor and a remote caller. In step 207, the CPU 12 checks whether the door lock control code is received through the DTMF detection circuit 32. If the door lock control code is received, the CPU 12 proceeds to step 208. If the door lock control code is not received, the CPU 12 proceeds to step 209. In step 208, the CPU 12 controls the door lock control circuit 30 to open the door lock 32, and proceeds to step 209. In step 209, the CPU 12 checks whether the trunk line is cut and ends the door phone control operation when the trunk line is cut.

As described above, in the present invention, when a visitor presses a call key and calls a door phone, the present invention calls a pager that is registered in advance and leaves the door phone identification code on the pager display device. After confirming the call to the automatic relay device to form a call with the visitor to open the door, it is possible to control the identity and door lock of the visitor from a remote location, thereby improving the function of the system.

Claims (5)

In the method of controlling the door phone remotely using an automatic repeater, When the call key of the door phone is pressed by the visitor during the absence, the door phone call code is displayed on the display device of the pager by calling the pager number registered in advance, and the door phone call is confirmed by checking the door phone call code. A door phone control method in a remote location using the automatic repeater, characterized in that to form a call with the visitor by recognizing and calling the automatic repeater at a remote place. The method of claim 1, Forming a call with the visitor, after confirming the identity of the visitor, the door lock control code is further provided to send the door to the automatic repeater from the remote to open the door, characterized in that the door phone control from the remote using the automatic repeater Way. In the method of controlling the door phone remotely using an automatic repeater, If there is no response for the set time after the door phone call key is pressed, the process of calling the pager by dialing the pager number registered in advance by connecting an empty CO line port, Calling the automatic repeater when the door phone recognition code is displayed by checking the information displayed on the display device of the pager when the user receives the pager call; Method of controlling a door phone at a remote location using an automatic repeater, characterized in that the call is made after the call to the door phone call to form the door phone call to connect the visitor and the call path. The method of claim 3, wherein the pager call process, Ringing the incoming ring when the door phone call key is pressed, Determining that there is no response for a predetermined time after the ringing ring rings, and determining the absence of the incoming ring; Dialing the registered pager number when the dial tone is detected after the CO line port is caesared; And dialing the door phone call recognition mode when a pager response signal is detected after dialing the pager number. The method of claim 4, wherein the automatic relay call is performed. Transmitting a guide message for inputting a formation code into a door phone call in which a ring signal is to be detected; The door phone control method in a remote location using an automatic repeater, characterized in that the process of connecting the trunk line and the door phone call path when the code is received in the door phone call after sending the guide message.