KR20230089288A - Automatic control system for the front door of the lobby - Google Patents

Abstract

The present invention provides an automatic control system for a lobby front door, including: a smart lobby phone linked to a lobby front door installed at a front door of an apartment house and having first identification information for communication with a mobile communication network, capable of inputting a household call information by a user who wishes to enter and exit the lobby front door, and transmitting a call message including household call information to the mobile communication network using second identification information matched to household information corresponding to the input household call information; and a smart doorbell communicating with the smart lobby phone via the mobile communication network using the second identification information, emitting a predetermined call tone in response to receiving the call message via the mobile communication network, generating a control request message in response to a predetermined key operation, and transmitting the control request message to the smart lobby phone via the mobile communication network using the first identification information. Accordingly, it is possible to automatically control a household call and a lobby front door.

Description

Automatic control system for the front door of the lobby}

The present invention relates to a technology for automatically controlling a lobby front door.

In general, an apartment, as one of the common housing forms, is a dwelling type in which a building with a certain floor or more is divided into several houses for each floor, so that each independent household can live.

Recently, with the advancement of residential culture, not only convenience but also security are emphasized, and the installation of security-related lock systems is becoming common. CCTV, magnetic key, proximity card key, etc. have already been distributed and used, and recently, not only video phone and fingerprint recognition system, but also surveillance system that monitors the opening and closing of front doors such as main entrance or common entrance, home automation system (HAS: Home The spread of access control systems linked with automation systems is also steadily expanding. In particular, in the case of apartment houses, row houses, multi-household houses, etc., there is always a common entrance, and there is a problem of controlling the number of people entering and exiting through the common entrance. An essential system as a system that controls these common entrances is the lobby phone (interphone), which is a means of communication between the entrance lobby and each household.

The lobby phone is a device for opening and closing an automatic door installed in a common entrance by determining whether each household independently permits entry after communicating by voice with respect to a person who wants to enter or exit from a common entrance. These lobby phones not only reduce security problems, but also reduce management costs due to the presence of security personnel, and can solve the inconvenience of using keys for the elderly or young people, so the installation of lobby phones is increasing during recent remodeling.

However, in the case of a conventional lobby phone, there is no problem in installing a wired line from the time of construction when a new apartment is constructed, but in the case of apartment houses (including row houses and multi-household houses) such as redeveloped apartments that require remodeling, automatic door construction costs when installing the lobby phone It poses a problem by opening a wired line that requires more expenses. In other words, there is a consensus on the necessity of installing a lobby phone during remodeling, but in many cases, the installation of a lobby phone is abandoned due to the problem of greatly increasing construction cost due to the installation of a dedicated line. In addition, in the case of imported products, there is no need to open a dedicated line as a communication method using a telephone line, but there is a critical problem in that the phone number of the occupant household is disclosed.

Republic of Korea Patent Publication No. 10-2008-0057851 (2008.06.25. Publication.)

The present invention provides a lobby front door automatic control system capable of automatically controlling a household call and lobby front door by performing communication between a smart lobby phone and a smart doorbell through a mobile communication network.

The object of the present invention is not limited to the object mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art from the description below.

As a technical means for achieving the above technical problem, the lobby front door automatic control system according to an embodiment of the present invention is interlocked with the lobby front door installed at the entrance of a common house and sets first identification information for communication with a mobile communication network household call information can be input by a user who wants to enter and exit the lobby front door, and a call including household call information is made using second identification information matched to the household information corresponding to the input household call information. A smart lobby phone that transmits a message to the mobile communication network and a smart lobby phone that communicates with the smart lobby phone through the mobile communication network using the second identification information, and receives a message for a call through the mobile communication network. It may include a smart doorbell that transmits a ring tone, generates a control request message according to a predetermined key operation, and transmits it to the smart lobby phone through the mobile communication network using the first identification information.

According to an embodiment of the present invention, the lobby front door automatic control system is set with third identification information granted to receive a mobile communication service through the mobile communication network, and receives a call message through the mobile communication network. Then, a smart device for transmitting a control request message for this to the smart lobby phone through the mobile communication network, wherein the smart lobby phone sends the call message to the mobile communication network using the second and third identification information. It can be transmitted to the smart device and the smart doorbell through.

According to an embodiment of the present invention, a video service based on an image captured by a photographing unit of the smart lobby phone may be provided to the smart device and/or the smart doorbell.

As a technical means for achieving the above technical problem, the lobby front door automatic control system according to an embodiment of the present invention is interlocked with the lobby front door installed at the entrance of a common house and sets first identification information for communication with a mobile communication network A smart lobby phone capable of inputting household call information by a user who wants to enter and exit the lobby front door, and transmitting a call message including the input household call information to the mobile communication network; installed to receive the paging message, transmit the paging message using the second identification information matched to the household information of the household paging information of the paging message, and then transmit the paging message to the smart device as a control request message is received. The server transmitting to the lobby phone communicates with the server within the mobile communication network using the second identification information, transmits a predetermined ringing sound when the call message is received, and controls the control according to a predetermined key operation. It may include a smart doorbell that generates a request message and transmits it to the server.

According to an embodiment of the present invention, the server manages data in which third identification information is matched with the household information, transmits the paging message using the third identification information, and the automatic control system for the lobby front door. may further include a smart device in which third identification information given for communication with the server is set, and after receiving the call message from the server, transmits a control request message for it to the server.

According to an embodiment of the present invention, the server is installed in a backhaul network connecting an access network and a core network of the mobile communication network, and the smart device receives the call message through the core network connected to the server, and then responds to this In response, a control request message may be transmitted.

According to an embodiment of the present invention, the server may provide a video service based on an image captured by a photographing unit of the smart lobby phone to the smart device and the smart doorbell.

According to an embodiment of the present invention, the server may process non-transmission of a control request message received from the other one after receiving a control request message from one of the smart device and the smart doorbell.

According to an embodiment of the present invention, the server may process non-transmission when a control request message is received from any one of the smart device and the smart doorbell after a predetermined time has elapsed.

According to the above-described embodiment of the present invention, by providing a system capable of automatically controlling a household call and a lobby front door by performing communication between a smart lobby phone and a smart doorbell in a household through a mobile communication network, in the remodeling of an apartment You can cut costs.

1 is an overall network configuration diagram of an automatic control system for a front door of an apartment house according to an embodiment of the present invention.
2 is a diagram showing the structure of a mobile communication network applied to an embodiment of the present invention.
3 is a block diagram showing the detailed configuration of a smart lobby phone according to an embodiment of the present invention.
4 is a network configuration diagram showing the configuration of a lobby front door automatic control system according to another embodiment of the present invention.
5 is a flowchart illustrating a process of automatically controlling a lobby front door according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The detailed descriptions that follow are provided to provide a comprehensive understanding of the methods, devices and/or systems described herein. However, this is only an example and the present invention is not limited thereto.

In describing the embodiments of the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, the definition should be made based on the contents throughout this specification. Terminology used in the detailed description is only for describing the embodiments of the present invention and should in no way be limiting. Unless expressly used otherwise, singular forms of expression include plural forms. In this description, expressions such as "comprising" or "comprising" are intended to indicate any characteristic, number, step, operation, element, portion or combination thereof, one or more other than those described. It should not be construed to exclude the existence or possibility of any other feature, number, step, operation, element, part or combination thereof.

Hereinafter, a system and method for automatically controlling a front lobby door of an apartment house according to an embodiment of the present invention will be described with reference to the accompanying drawings.

Prior to the description of the embodiments of the present invention, an apartment house is a housing type in which several households and several households co-occupy each other in one building, and examples thereof include apartments, row houses, multi-household houses, and the like.

1 is a diagram showing the overall network configuration of an automatic control system for a front door of an apartment building according to an embodiment of the present invention, and FIG. 2 is a diagram showing the structure of a mobile communication network applied to an embodiment of the present invention. is a block diagram showing the detailed configuration of a smart lobby phone according to an embodiment of the present invention.

As shown in Figure 1, the front lobby door automatic control system may be composed of a smart lobby phone 100, a smart doorbell 120, and a smart device 140 capable of controlling the lobby front door 10. .

The smart lobby phone 100, the smart doorbell 120, and the smart device 140 may communicate with each other through the mobile communication network 20, and for this purpose, subscribe to receive the mobile communication service within the mobile communication network 20. As a device, it can be given unique identification information for providing mobile communication service between devices.

In particular, the smart lobby phone 100 and the smart doorbell 120 according to an embodiment of the present invention can be connected and operated through the dynamic Internet of Things using unique identification information.

Hereinafter, for convenience of description, the unique identification information assigned to the smart lobby phone 100 is first identification information, the unique identification information assigned to the smart doorbell 120 is second identification information, and the smart device 140 is assigned second identification information. Unique identification information will be named third identification information. Here, when the smart device 140 is a smartphone possessed by a user, the unique identification information assigned to the smart device 140 may be an IMEI, which is a unique terminal identification number.

The smart lobby phone 100 is interlocked with the lobby front door 10 installed at the entrance of the apartment house, and first identification information for communication with the mobile communication network 20 is set. It may be possible to input household call information by a user who does.

In addition, the smart lobby phone 100 manages the second identification information given to the smart doorbell 120 installed in each household in the apartment house, and generates the second identification information matched with the household information corresponding to the input household call information. It is possible to transmit a call message including household call information to the mobile communication network 20 by using. That is, the smart lobby phone 100 may store and manage data in which the second identification information of the smart doorbell 120 is matched with each generation information in a memory (not shown).

The smart doorbell 120 is a device installed in the household, communicates with the smart lobby phone 100 through the mobile communication network 20 using the second identification information, and receives a call message through the mobile communication network 20. As a result, a predetermined ring tone is transmitted, and after a control request message is generated according to a predetermined key operation, it can be transmitted to the smart lobby phone 100 through the mobile communication network 20 using the first identification information. Accordingly, the smart lobby phone 100 may control the front lobby door 10 based on the control request message.

On the other hand, the smart device 140 of the automatic control system for the front lobby door according to the embodiment of the present invention is set with the third identification information given to receive the mobile communication service through the mobile communication network 20, and the mobile communication network ( 20), a control request message for this message can be transmitted to the smart lobby phone 100 through the mobile communication network 20 after receiving a message for calling.

In this case, the smart lobby phone 100 stores and manages data in memory in which the second and third identification information is matched with each generation information, and transmits a call message to the mobile communication network using the second and third identification information ( 20), it can be transmitted to the smart device 140 and the smart doorbell 120.

On the other hand, as shown in FIG. 2, the mobile communication network 20 according to an embodiment of the present invention may be composed of a mobile communication system and a base station (e.g. e-Node, e-Node B), etc., in particular, a smart lobby. The access network 22 that manages the wireless interface between the phone 100, the smart doorbell 120, and the smart device 140 and the base station 21 and a device connected through the access network (smart lobby according to an embodiment of the present invention) A core network 24 that performs a control plane for controlling a phone 100, a smart doorbell 120, and a smart device 140) and a base station for controlling a base station and a user plane for providing data may consist of

The access network 22 and the core network 24 are connected through a backhaul network to transmit and receive data, and the core network 24 provides general mobile communication services, such as mobile phones, Internet access, video, and app-based services. can provide

Based on the structure of the mobile communication network 20, between the smart lobby phone 100 and the smart doorbell 120, the lobby phone mediation server 26 installed in the backhaul network connecting the base station 21 and the core network 24 When the smart device 140 is a smartphone, the smart lobby phone 100 and the smart device 140 perform communication through the core network 24 connected through the lobby phone mediation server 26. can

That is, the mobile communication network 20 applied to the automatic lobby front door control system according to an embodiment of the present invention is an ultra-low delay and large-capacity data service between the smart lobby phone 100 and the smart doorbell 120 (eg, the smart lobby phone ( 100) may further include a lobby phone mediation server 26 for service). That is, the lobby phone mediation server 26 is installed in the rear end of the base station 21 to which the smart lobby phone 100 and the smart doorbell 120 are connected, that is, in the backhaul network between the base station 21 and the core network 14, Communication between the lobby phone 100 and the smart doorbell 120 may be supported.

The lobby phone mediation server 26 may provide an automatic control service of the lobby front door 10 through communication between the smart lobby phone 100 and the smart doorbell 120.

To this end, the lobby phone mediation server 26 stores data in which the first identification information of the smart lobby phone 100, the household information (that is, the information of the household in which the smart doorbell 120 is installed) and the second identification information are matched. manages the database 28, and as the household call information is received from the smart lobby phone 100, data having household information corresponding to the household call information is searched in the database 28, and then the second The smart doorbell 120 and the smart lobby phone 100 installed in the called household can be interconnected using the identification information.

Through this connection, the lobby phone mediation server 26 transmits the control request message to the smart lobby phone 100 as the control request message is received from the smart doorbell 120, and transmits data received from the smart lobby phone 100 to the smart doorbell 120. ) can be transmitted.

For this operation, the smart lobby phone 100 is interlocked with the lobby front door 10 installed at the entrance of the apartment house, and a user who wants to enter and exit the lobby front door 10 can input household call information, The input household call information is transmitted to the lobby phone mediation server 26 within the mobile communication network 10, and the lobby front door 10 is controlled as a response, for example, a control request message is received from the lobby phone mediation server 26. can

To this end, the smart lobby phone 100 according to an embodiment of the present invention, as shown in FIG. 3, connects to the mobile communication network 10 using the first identification information and provides a communication service 101 , An interface providing unit 102 capable of calling a household by inputting household calling information, a photographing unit 104 for photographing the front of the lobby front door 10, and a lobby phone 100 according to input of household calling information After generating a call message including the first identification information and household call information of the information transmission unit 106 for transmitting it to the mobile communication network 20 connected through the communication unit 101, for example, the lobby phone mediation server 26, In response to a control request message received from the mobile communication network 20, an opening/closing controller 108 controlling opening/closing of the lobby front door 10 may be included.

Meanwhile, as household call information is input, the smart lobby phone 100 may transmit a call message using second identification information matched to household information in household call information. In this case, the lobby phone mediation server 26 may access the smart doorbell 120 of the called household using the second identification information and transmit a message for calling to the smart doorbell 120 of the called household.

The smart doorbell 120 communicates with the smart lobby phone 100 through the mobile communication network 20, for example, the lobby phone brokerage server 26, using the second identification information, and receives a message for a call. After transmitting the ring tone, a control request message may be transmitted to the smart lobby phone 100 through the mobile communication network 20 according to the user's key manipulation.

Meanwhile, the lobby phone mediation server 26 according to an embodiment of the present invention may transmit a call message to the pre-registered smart device 140 when a control request message is not received from the smart doorbell 120 for a preset time. there is. Specifically, the lobby phone mediation server 26 includes first identification information of the smart lobby phone 100, household information (ie, information of the household in which the smart doorbell 120 is installed), second identification information, and smart device 140 Manages the database 28 in which the data matched with the third identification information assigned to is stored, and when a control request message is not received from the smart doorbell 120 for a preset time, a message for a call is sent using the third identification information. After transmitting to the smart device 140 through the core network 24, it can be transmitted to the smart lobby phone 100 as a control request message is received in response thereto.

Meanwhile, the lobby phone mediation server 26 may transmit an absence response message to the smart lobby phone 100 when a control request message for this is not received for a preset time after transmitting the call message. Accordingly, the smart lobby phone 100 may transmit a message indicating absence through a speaker (not shown).

In addition, when the control request message is not received from the mobile communication network 20 until a predetermined time elapses after the household call information is input, the smart lobby phone 100 may transmit a message informing of absence through a speaker. .

In addition, the lobby phone mediation server 26 transmits a call message to the smart doorbell 120 and the smart device 140 using the second and third identification information as the call message is received, and the smart doorbell 120 ) and the smart device 140, it can be transmitted to the smart lobby phone 100 as the control request message is received.

On the other hand, the lobby phone mediation server 26 transmits the image to the smart device 140 or the smart doorbell 120 as the image captured by the photographing unit 104 is received from the smart lobby phone 100 and transmits the image service can be provided.

That is, the lobby phone mediation server 26 transmits the received image in real time based on the request of the smart device 140 connected to the mobile communication network 20 or transmits an image extracted from the received image to the smart device 140 there is.

The smart device 140 according to an embodiment of the present invention is set with third identification information for performing communication through the mobile communication network 20, and is a device that can be carried by a user, such as a smartphone or a tablet. and wearable devices such as PCs and smart watches.

In addition, the smart device 140 according to an embodiment of the present invention has a memory (not shown) in which a predetermined application 142 is stored in an executable form for the above-described operation, and the lobby phone mediation server 26 ), the application 142 may be executed as a call message is received, or the application 142 may be executed according to the user's manipulation of the message after the call message is received.

This application 142 notifies the user that there is a house call through a predetermined notification sound or vibration, and receives and displays an image in real time from the lobby phone mediation server 26 or displays an image on a display (not shown). can indicate

4 is a network configuration diagram showing the configuration of a lobby front door automatic control system according to another embodiment of the present invention.

As shown in FIG. 4, the lobby front door automatic control system includes a local area wireless communication network 30, that is, a smart lobby phone 100 connected to a local area wireless communication network 30 including a Wi-Fi router, and a local area wireless communication network 30 The wired network 40 connected to my Wi-Fi router, the household wireless router 110 connected through the wired network 40, the smart doorbell 120 connected to the household wireless router 110, and the wired network 40 It may be composed of a connected mobile communication network 20 and a smart device 140 connected through the mobile communication network 20 .

In this case, the first identification information includes the IP address of the Wi-Fi router and the MAC address of the smart lobby phone 100, and the second identification information includes the IP address of the household unmanned router 110 and the MAC address of the smart doorbell 120. can do.

Accordingly, the smart lobby phone 100 transmits a message for calling to the smart doorbell 120 through the household unmanned router 110 using the first identification information and the second identification information, and then controls from the smart doorbell 120. You can receive request messages.

In addition, the smart lobby phone 100 accesses the local area wireless communication network 20 using the first identification information and accesses the smart device 140 through the mobile communication network 20 interworking with the wired network 40, After transmitting a message for a call to the smart device 140 through the smart device 140 can receive a control request message.

To this end, the smart lobby phone 100 may store and manage data in which the third identification information assigned to the second and smart device 140 is matched with the generation information in a memory. At this time, the smart lobby phone 100 transmits a call message to the smart doorbell 120 through the household unmanned router 110 using the first identification information and the second identification information, and then requests a control from the smart doorbell 120. It checks whether a message is received, and if the control request message is not received for a predetermined time, it is possible to check whether a control request message is received after transmitting a call message to the smart device 140 using the third identification information. there is.

When a control request message is not received from the smart doorbell 120 and/or the smart device 140 for a preset time, the smart lobby phone 100 may transmit a message indicating an absence through a speaker.

The operation of the lobby front door automatic control system having the above configuration will be described with reference to FIG. 5 .

5 is a flowchart illustrating a process of automatically controlling a lobby front door according to an embodiment of the present invention.

As shown in FIG. 5, as the household call information is input (S300), the smart lobby phone 100 uses the second identification information matched to the household information corresponding to the household call information to generate a back in the mobile communication network 20. It connects to the lobby phone management server 26 installed in the network and transmits a message for calling (S302).

Accordingly, the lobby phone management server 26 recognizes the smart doorbell 120 of the called household based on the second identification information, and transmits a message for calling to the recognized smart doorbell 120 through the base station 21. After (304), as the control request message is received from the smart doorbell 120 within a preset time (S306), it is transmitted to the smart lobby phone 100 (S308). That is, the smart doorbell 120 transmits a predetermined call sound through a speaker (not shown) as a call message is received, and when a predetermined key operation occurs, a control request message corresponding to it is sent to the lobby phone management server ( 26) to send.

For this operation, the lobby phone management server 26 may manage first and second identification information and installation information (eg, installation location information) of the smart lobby phone 100 and the smart doorbell 120.

The smart lobby phone 100 opens the lobby front door 10 (S310).

On the other hand, if the control request message is not received from the smart doorbell 120 for a preset time, the lobby phone management server 26 transmits a call message to the smart device 140 through the core network 24 (S312) After that, it may be determined whether a control request message is received.

When a control request message is received from the smart device 140, the lobby phone management server 26 transmits the control request message to the smart lobby phone 100 (S314, S316), thereby opening the lobby front door 10 (S310). ) can be made.

In addition, when a response to the paging message is not received through the mobile communication network 20 for a preset time, the smart lobby phone 100 may transmit a message indicating an absence through a speaker. That is, the smart lobby phone 100 transmits a message for calling and checks whether a preset time has elapsed (S318) through a time check function, and as the preset time elapses, a message informing of absence is sent through a speaker. It transmits (S320).

Although omitted in the embodiments of the present invention as described above, the video taken by the smart lobby phone 100 together with the message for calling can also be transmitted to the smart doorbell 120 and / or smart device 140 A predetermined voice message may be transmitted to the smart lobby phone 100 together with the control request message.

In addition, after the control request message is received from one of the smart device 140 and the smart doorbell 120, the lobby phone management server 26 processes the control request message received from the other one as non-transmission, or the preset time has elapsed. If a control request message is received from at least one of the smart device 140 and the smart doorbell 120 after elapsed time, it may be processed as not transmitted.

Meanwhile, combinations of each block of the accompanying block diagram and each step of the flowchart may be performed by computer program instructions. Since these computer program instructions may be loaded into a processor of a general-purpose computer, special-purpose computer, or other programmable data processing equipment, the instructions executed by the processor of the computer or other programmable data processing equipment are described in each block of the block diagram. It creates means to perform functions.

These computer program instructions may be stored on a computer usable or computer readable medium (or memory) or the like that may be directed to a computer or other programmable data processing equipment to implement functions in a particular manner, so that the computer usable Alternatively, the instructions stored in a computer readable recording medium (or memory) may produce an article of manufacture containing instruction means for performing a function described in each block of the block diagram.

In addition, since the computer program instructions can be loaded on a computer or other programmable data processing equipment, a series of operational steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to generate a computer or other programmable data processing equipment. Instructions performing possible data processing equipment may also provide steps for executing the functions described in each block of the block diagram.

Also, each block may represent a module, segment, or portion of code including at least one or more executable instructions for executing specified logical function(s). It should also be noted that in some alternative embodiments, it is possible for the functions mentioned in the blocks to occur out of order. For example, two blocks shown in succession may in fact be executed substantially concurrently, or the blocks may sometimes be executed in reverse order depending on their function.

100: smart lobby phone
120: smart doorbell
140: smart device

Claims (7)

First identification information for communication with a mobile communication network is interlocked with the lobby front door installed at the entrance of the apartment house, and household call information can be input by a user who wants to enter and exit the lobby front door. A smart lobby phone that transmits a call message including household call information to the mobile communication network using second identification information matched to household information corresponding to the household call information;
Communication is performed with the smart lobby phone through the mobile communication network using the second identification information, and a predetermined ring tone is transmitted as a call message is received through the mobile communication network, and a control request message is performed according to a predetermined key operation. Lobby front door automatic control system including a smart doorbell for generating and then transmitting it to the smart lobby phone through the mobile communication network using the first identification information.
According to claim 1,
The lobby front door automatic control system,
Third identification information given to receive a mobile communication service through the mobile communication network is set, and after receiving a message for a call through the mobile communication network, a control request message for it is sent through the mobile communication network to the smart lobby phone. It further includes a smart device to transmit to,
The smart lobby phone,
Lobby front door automatic control system for transmitting the call message to the smart device and the smart doorbell through the mobile communication network using the second and third identification information.
According to claim 2,
A lobby front door automatic control system in which a video service based on an image taken by the camera of the smart lobby phone is provided to the smart device and / or smart doorbell.
First identification information for communication with a mobile communication network is interlocked with the lobby front door installed at the entrance of the apartment house, and household call information can be input by a user who wants to enter and exit the lobby front door. A smart lobby phone that transmits a call message including household call information to the mobile communication network;
It is installed in the mobile communication network to receive the paging message, and after transmitting the paging message using second identification information matched to the household information of the household paging information of the paging message, the control request message is received. A server that transmits it to the smart lobby phone according to;
Communication is performed with a server within the mobile communication network using the second identification information, a predetermined ring tone is transmitted when the call message is received, and the control request message is generated according to a predetermined key operation, and then the control request message is generated. Lobby front door automatic control system including smart doorbell transmitting to server.
According to claim 4,
The server,
Managing data matched with third identification information to the generation information, and transmitting the paging message using the third identification information;
The lobby front door automatic control system,
Third identification information given for communication with the server is set, and after receiving the call message from the server, the lobby front door further includes a smart device that transmits a control request message for this to the server. control system.
According to claim 5,
The server,
It is installed in a backhaul network connecting the access network and the core network of the mobile communication network,
The smart device receives the call message through the core network connected to the server and then transmits a control request message in response to the lobby front door automatic control system.
According to claim 6,
The server,
Lobby front door automatic control system for providing a video service based on the image taken by the camera of the smart lobby phone to the smart device and the smart doorbell.

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