KR101681730B1 - System and method for providing image monitoring service using waste smart device - Google Patents

Abstract

A method for providing a video monitoring service includes: checking status of the smart terminal including status of a camera and a communication module of the smart terminal through a rooting application installed in the administrator terminal; Installing, through the routing application, an image recording application to the smart terminal based on the confirmation result, the image recording application controlling operation of the smart terminal including operations of the camera and the communication module; Generating image data using the camera as the image recording application is driven in the smart terminal disposed at an arbitrary position; Receiving video data from the smart terminal through a video monitoring application installed in the user terminal, the video monitoring application being connected to the video recording application by communication; And providing the image data through the image monitoring application.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and system for providing a video monitoring service using a closed smart terminal,

The present invention relates to a system and a method for providing a video monitoring service using a closed smart terminal, and more particularly, by installing a video recording application on a closed smart terminal based on a result of checking the status of the closed smart terminal, And CCTV for video monitoring.

A video monitoring service providing system using a CCTV (hereinafter referred to as a CCTV serving as a surveillance camera) disposed at an arbitrary position is in need of a crime due to a recent surge along with the expansion of the CCTV market scale .

However, due to the high manufacturing cost of CCTV, there are many difficulties in popularizing the video monitoring service providing system.

Accordingly, in the present specification, a technique of minimizing the cost of providing a video monitoring service provision system by using a closed smart terminal (e.g., a terminal including a camera and a communication module such as a smart phone, a tablet, or a notebook) do.

An embodiment of the present invention proposes a method and system for providing a video monitoring service using a closed smart terminal.

In particular, an embodiment of the present invention provides a video monitoring service providing method and system for controlling a closed smart terminal using a video recording application by installing a video recording application on a closed smart terminal based on a result of checking the status of the closed smart terminal I suggest.

According to an embodiment of the present invention, there is provided a method of providing an image monitoring service, comprising: confirming a state of the smart terminal including a state of a camera and a communication module of the smart terminal through a rooting application installed in an administrator terminal; Installing, through the routing application, an image recording application to the smart terminal based on the confirmation result, the image recording application controlling operation of the smart terminal including operations of the camera and the communication module; Generating image data using the camera as the image recording application is driven in the smart terminal disposed at an arbitrary position; Receiving video data from the smart terminal through a video monitoring application installed in the user terminal, the video monitoring application being connected to the video recording application by communication; And providing the image data through the image monitoring application.

The step of installing the image recording application may include setting the environment for the smart terminal by controlling the image recording application on the basis of the confirmation result.

The performing of the environment setting for the smart terminal may include performing an environment setting related to at least one of the camera, the communication module, the microphone, the speaker, the memory, and the battery included in the smart terminal.

The video monitoring service providing method may further include controlling the video recording application through the video monitoring application.

The step of generating the image data may further include transmitting / sharing the image data through a contact previously stored in the smart terminal, a server related to a pre-installed application distinguished from the image recording application, or a predetermined cloud account have.

The checking of the status of the smart terminal may include obtaining the root authority of the smart terminal in response to the smart terminal being directly connected to the administrator terminal.

The step of receiving the image data may further comprise forming a web socket protocol between the image recording application and the image monitoring application.

The video recording application may be activated or deactivated in response to an on / off of the smart terminal.

The step of receiving the image data may further include receiving voice data recorded in a microphone included in the smart terminal from the smart terminal, and the step of providing the image data may further include the step of providing the voice data .

The step of generating the image data may include the step of encrypting the image data, and the step of receiving the image data may include receiving the encrypted image data, And decoding the encrypted image data to restore the image data.

According to an embodiment of the present invention, an image monitoring service providing system includes an administrator terminal installed with a rooting application; A user terminal equipped with a video monitoring application; And a smart terminal, wherein the administrator terminal confirms the status of the smart terminal including the status of the camera and the communication module of the smart terminal through the routing application, An application, wherein the image recording application controls an operation of the smart terminal including an operation of the camera and the communication module, the smart terminal being disposed at an arbitrary position, Wherein the user terminal receives the image data from the smart terminal through the image monitoring application, the image monitoring application being connected to the image recording application by communication, It provides the data.

Embodiments of the present invention may propose a method and system for providing video monitoring services using a closed smart terminal.

In particular, an embodiment of the present invention provides a video monitoring service providing method and system for controlling a closed smart terminal using a video recording application by installing a video recording application on a closed smart terminal based on a result of checking the status of the closed smart terminal Can be proposed.

Therefore, according to the embodiment of the present invention, by using a video recording application installed on the basis of a result of checking the status of a closed smart terminal, it is possible to display a state of a camera, a communication module, a microphone, a speaker, a memory, To control the closed smart terminal.

1 is a block diagram of a system for providing video monitoring services according to an embodiment of the present invention.
2 is a diagram illustrating a process of installing an image recording application in a smart terminal according to an embodiment of the present invention.
3A and 3B illustrate a process of controlling a smart terminal through an image monitoring application according to an embodiment of the present invention.
4 is a diagram illustrating a method of providing a video monitoring service according to an embodiment of the present invention.
5 is a block diagram illustrating a video monitoring service providing system according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. In addition, the same reference numerals shown in the drawings denote the same members.

1 is a block diagram of a system for providing video monitoring services according to an embodiment of the present invention.

Referring to FIG. 1, an image monitoring service providing system according to an embodiment of the present invention includes an administrator terminal 110, a user terminal 120, and a smart terminal 130. Here, the smart terminal 130 may include a camera and a communication module, such as a closed smart phone, a closed tablet or a closed notebook, disposed at an arbitrary position and serving as a CCTV, (E.g., a mobile terminal to be able to transmit data). Hereinafter, the CCTV role means to perform a function of capturing and transmitting an image at an arbitrary position. Accordingly, the smart terminal 130 plays a CCTV function, which means that the smart terminal 130 captures and transmits an image at an arbitrary position.

The administrator terminal 110 may be a terminal equipped with a rooting application for setting the smart terminal 130 to perform the CCTV function in the video monitoring service providing system and may be a terminal such as a smart phone, a tablet, a notebook computer, or a PC.

Specifically, the administrator terminal 110 obtains the root authority of the smart terminal 130 in response to the direct connection of the smart terminal 130 (the process of acquiring the root authority of the smart terminal 130 at this time) The status of the smart terminal 130 can be checked whether the smart terminal 130 is performed differently depending on the model or the manufacturer of the smart terminal 130 or unified regardless of the model or the manufacturer. For example, if the Android OS-based smart terminal 130 is directly connected to the administrator terminal 110 via the USB connection, the routing application of the administrator terminal 110 acquires the root authority for the Android kernel of the smart terminal 130 And use the acquired root privileges to perform an android debug bridge (ADB) connection. therefore. The administrator terminal 110 can check the status of the smart terminal 130 through the ADB connection.

Herein, the administrator terminal 110 confirms the status of the smart terminal 130 by checking the status of each of the camera, the communication module, the microphone, the speaker, the memory, the battery or the display unit included in the smart terminal 130 Hardware information). In particular, the administrator terminal 110 confirms the status of the camera and the communication module, which are core functions of the smart terminal 130 in the video monitoring service providing system.

When the status of the smart terminal 130 is confirmed, the administrator terminal 110 transmits the image recording application-image recording application to the smart terminal 130 based on the status of the confirmed smart terminal 130, (Operation of camera and communication module). In this case, the image recording application is an application implemented in conformity with the OS of the smart terminal 130. For example, when the smart terminal 130 is based on the Android OS, the image recording application may be an Android native application type that can operate on the Android runtime Can be implemented. The operation of the smart terminal 130 controlled by the image recording application is as follows.

1) Operation of the camera included in the smart terminal 130

2) storing / encrypting / encoding operation of the image data generated by controlling the operation of the camera

3) Operation of the microphone included in the smart terminal 130

4) storing / encrypting / encoding operation of voice data generated by controlling the operation of the microphone

5) Operation of the communication module included in the smart terminal 130 - Transfer operation of video data or voice data

6) Operation of communication module - Reception operation of control command

7) Operation of speaker or camera in response to receiving operation of control command

The administrator terminal 110 controls the video recording application on the basis of the confirmation result in the process of installing the video recording application on the smart terminal 130 based on the status of the smart terminal 130, (E.g., configuration related to at least one of camera, communication module, microphone, speaker, memory or battery of smart terminal 130). A detailed description thereof will be described with reference to Fig.

The process of confirming the status of the smart terminal 130 and the process of installing the image recording application on the smart terminal 130 based on the checking result are displayed on the display unit of the administrator terminal 110 It can be controlled by the administrator. Accordingly, the administrator can check the status of the smart terminal 130 through the display unit of the administrator terminal 110 and install the video recording application on the smart terminal 130 even if the display unit of the smart terminal 130 is in a failed state.

The video recording application may be installed and simultaneously operated in the smart terminal 130 so that driving and stopping can be controlled by turning on / off the smart terminal 130. For example, the video recording application may be driven or stopped in response to the on / off of the smart terminal 130. Accordingly, even when the display unit of the smart terminal 130 is in a failed state, the image recording application is automatically activated when the smart terminal 130 is turned on, and the image recording application is automatically stopped when the smart terminal 130 is turned off. .

As described above, when the smart terminal 130 is set, the smart terminal 130 is disposed at an arbitrary position and can perform a CCTV function in the video monitoring service providing system.

Specifically, the smart terminal 130 generates image data using the camera as the image recording application is driven, and transmits the generated image data to the preset user terminal 120. [ For example, the smart terminal 130 may generate image data using a camera, and may stream the generated image data to the user terminal 120. At this time, instead of transmitting the image data itself to the user terminal 120, the smart terminal 130 encrypts the image data (for example, a standard encryption technique may be used as the encryption technique) Data may be transmitted to the user terminal 120. The smart terminal 130 may transmit the stored image data to the user terminal 120 by storing the generated image data in a memory included in the smart terminal 130, instead of streaming the generated image data.

The smart terminal 130 may generate voice data to be recorded through a microphone included in the smart terminal 130 as well as image data and transmit the generated voice data to the user terminal 120.

The operation of the smart terminal 130 may include operations of the smart terminal 130 controlled by the video recording application described above in addition to the above-described examples.

Here, the user terminal 120 is connected to a terminal (for example, a smartphone, a tablet, etc.) receiving image data generated in the smart terminal 130 through a pre-installed video monitoring application- A terminal including a communication module such as a notebook computer or a PC) will be described below as another terminal different from the administrator terminal 110, but may be one terminal with the administrator terminal 110.

In this case, the image monitoring application is an application for providing image monitoring service to the user of the user terminal 120 by displaying the received image data, and it can be operated based on a web browser so that it can be operated regardless of the type of the user terminal 120 Can be operated. For example, video monitoring applications can be written in HTML5 to meet web standards.

In particular, a web socket protocol may be formed between the video monitoring application and the video recording application. For example, the role of the web server is embedded in the video recording application installed in the smart terminal 130, so that the video recording application can be connected with the video monitoring application and the web socket protocol. That is, a separate web server may not be required for communication between the user terminal 120 and the smart terminal 130.

Accordingly, the user terminal 120 can receive the image data from the smart terminal 130 through the image monitoring application and provide the received image data to the user. For example, the user terminal 120 may receive image data from the smart terminal 130 through a video monitoring application. At this time, instead of receiving the image data itself from the smart terminal 130 through the image monitoring application, the user terminal 120 may receive the encrypted image data. In this case, the user terminal 120 can decrypt the encrypted image data through the image monitoring application and restore the image data, thereby providing the restored image data to the user.

Also, the user terminal 120 may receive not only image data but also voice data recorded through a microphone included in the smart terminal 130, and provide the received voice data to the user.

Also, the user terminal 120 can control the video recording application installed in the smart terminal 130 through the video monitoring application. Thus, the smart terminal 130 may be controlled by the video recording application in accordance with the instructions of the user terminal 120. A detailed description thereof will be described with reference to Fig.

Instead of transmitting the generated image data to the user terminal 120, the smart terminal 130 may transmit the generated image data to the smart terminal 130 through a server previously associated with the application stored in the smart terminal 130, A server associated with the installed SNS application) or a predetermined cloud account. For example, the smart terminal 130 may transmit image data to a specific person on a contact previously stored in the smart terminal 130. In another example, the smart terminal 130 may share image data on a predetermined cloud account with the smart terminal 130 so that the image data is stored on the cloud account. In another example, the smart terminal 130 may transmit image data to a server associated with the SNS application through a pre-installed SNS application.

As described above, the system for providing video monitoring services according to an embodiment of the present invention uses a video recording application installed on the basis of a result of checking the status of a smart terminal, thereby enabling a camera, a communication module, a microphone, a speaker, The smart terminal can be controlled in consideration of the state of the memory, the battery, or the display unit.

2 is a diagram illustrating a process of installing an image recording application in a smart terminal according to an embodiment of the present invention.

2, in response to the direct connection of the smart terminal 220, the administrator terminal 210 according to the embodiment of the present invention confirms the status of the smart terminal 220 through the routing application, A video recording application can be installed on the smart terminal 220 as a basis. In particular, the administrator terminal 210 controls the image recording application based on the confirmation result to set environment for the smart terminal 220 (e.g., the camera of the smart terminal 220) , A communication module, a microphone, a speaker, a memory, or a battery).

For example, the administrator terminal 210 may configure the camera 231 based on the state 230 of the camera included in the smart terminal 220 so that the smart terminal 220 may access the image recording application The image quality of the image data to be generated can be set in advance.

For example, the administrator terminal 210 may configure the environment setting 241 for the communication module based on the status 240 of the communication module (WiFi module, 3G module or Bluetooth module, etc.) included in the smart terminal 220 The smart terminal 220 can preset the communication system to be used for transmitting the video data through the video recording application. More specifically, for example, when the WiFi module included in the smart terminal 220 is in a failure state, the administrator terminal 210 transmits the image data to the smart terminal 220 in advance Can be set.

For example, when the state 250 of the microphone included in the smart terminal 220 is in an operable state, the administrator terminal 210 may generate and transmit image data through the video recording application The environment setting 251 for the microphone may be performed in advance so as to generate / transmit additional voice data.

The process of setting the environment of the smart terminal 220 while installing the image recording application may be performed by various modules included in the smart terminal 220 such as the smart terminal 220 A memory, a battery, a speaker, an encryption module for encrypting data, and the like).

The process of confirming the status of the smart terminal 220 and installing the image recording application on the smart terminal 220 based on the checking result is performed by the display unit 211 of the administrator terminal 210, And can be controlled by an administrator. Accordingly, even if the display unit 221 of the smart terminal 220 is in a failed state, the administrator checks the status of the smart terminal 220 through the display unit 211 of the administrator terminal 210, You can install a video recording application.

3A and 3B illustrate a process of controlling a smart terminal through an image monitoring application according to an embodiment of the present invention.

Referring to FIGS. 3A and 3B, the user terminal 310 according to an exemplary embodiment may control an image recording application installed in the smart terminal 320 through an image monitoring application. Thus, the smart terminal 320 may be controlled by the video recording application in accordance with the instructions of the user terminal 310.

For example, as shown in FIG. 3A, an instruction to turn off the front camera 321 and turn on the rear camera 322 in the smart terminal 320 in the video monitoring application of the user terminal 310 is transmitted to the smart terminal 320, the smart terminal 320 may turn off the front camera 321 being activated and the rear camera 322 by an image recording application. Accordingly, the display unit 311 of the user terminal 310 may be provided with the image data photographed by the backside camera 322 of the smart terminal 320.

3B, when the user of the user terminal 310 generates specific voice data through the video monitoring application (for example, when the user selects 'Who are you?' In the microphone 312 of the user terminal 310). ), The generated voice data may be transmitted to the video recording application through the video monitoring application and then played back through the speaker 323 of the smart terminal 320 (e.g., the smart terminal 320 Quot; Who is it? &Quot; in the speaker 323).

The operation of the user terminal 310 to control the smart terminal 320 installed with the video recording application through the video monitoring application is not limited to the above example and may be controlled by the video recording application described with reference to FIG. Lt; RTI ID = 0.0 > 320 < / RTI >

4 is a diagram illustrating a method of providing a video monitoring service according to an embodiment of the present invention.

Referring to FIG. 4, a method of providing an image monitoring service according to an exemplary embodiment of the present invention is performed by an image monitoring service providing system including an administrator terminal 410, a smart terminal 420, and a user terminal 430.

First, the administrator terminal 410 confirms the status of the smart terminal 420 including the status of the camera and the communication module of the smart terminal 420 through the routing application. At this time, the administrator terminal 410 can confirm the status of the smart terminal 420 by acquiring the root authority of the smart terminal 420 in response to the smart terminal 420 being directly connected to the administrator terminal 410 .

The administrator terminal 410 then controls the operation of the smart terminal 420 including the operation of the video recording application-camera and communication module to the smart terminal 420 through the routing application based on the confirmation result do. The image recording application thus installed can be driven or stopped in response to the on / off of the smart terminal 420. In addition, the video recording application may be connected to the video monitoring application installed in the user terminal 430 by forming a web socket protocol. For example, by embedding the role of a web server inside a video recording application, the video recording application can be connected to a video monitoring application and a web socket protocol.

In this case, the administrator terminal 410 controls the image recording application based on the confirmation result in the process of installing the image recording application in the smart terminal 420, thereby setting the environment for the smart terminal 420 , A camera module, a communication module, a microphone, a speaker, a memory, or a battery).

The smart terminal 420 having the above-described settings is disposed at an arbitrary position. As the image recording application is driven, the smart terminal 420 generates image data using the camera and transmits the generated image data to the user terminal 430. For example, the smart terminal 420 may stream video data to the user terminal 430. On the other hand, the smart terminal 420 may store the image data in the memory instead of streaming the image data, and may transmit the image data to the user terminal 430 according to a predetermined period.

At this time, although not shown in the figure, the smart terminal 420 may transmit the image data to a server previously associated with the smart terminal 420, a server associated with a pre-installed application distinguished from the image recording application, or a server / You may.

Accordingly, the user terminal 430 receives the image data from the smart terminal 420 through the image monitoring application-the image monitoring application is communicated with the image recording application.

Thereafter, the user terminal 430 provides the image data to the user of the user terminal 430 through the image monitoring application.

In this case, the smart terminal 420 may transmit the encrypted image data to the user terminal 430 after encrypting the image data, instead of transmitting the image data itself to the user terminal 430. In this case, the user terminal 430 can provide the restored image data to the user of the user terminal 430 by decoding the encrypted image data and restoring the image data after receiving the encrypted image data.

The smart terminal 420 may generate voice data to be recorded in the microphone included in the smart terminal 420 and transmit the generated voice data to the user terminal 430 as well as the video data. In this case, the user terminal 430 may receive the voice data and provide the voice data to the user of the user terminal 430.

Also, although not shown in the figure, the user terminal 430 may control an image recording application installed in the smart terminal 420 through a video monitoring application. Accordingly, the smart terminal 420 can be controlled by the image recording application according to the instructions of the user terminal 430. [

5 is a block diagram illustrating a video monitoring service providing system according to an embodiment of the present invention.

5, the system for providing video monitoring services according to an exemplary embodiment of the present invention includes an administrator terminal 510, a user terminal 520, and a smart terminal 530. Referring to FIG.

The administrator terminal 510 confirms the status of the smart terminal 530 including the status of the camera and the communication module of the smart terminal 530 through the routing application. At this time, the administrator terminal 510 can confirm the status of the smart terminal 530 by acquiring the root authority of the smart terminal 530 in response to the smart terminal 530 being directly connected to the administrator terminal 510 .

The administrator terminal 510 controls the operation of the smart terminal 530 including the operation of the video recording application-the camera and the communication module, to the smart terminal 530 through the routing application based on the confirmation result do. The image recording application installed in this way can be driven or stopped in response to the on / off of the smart terminal 530. In addition, the video recording application may be connected to the video monitoring application installed in the user terminal 520 by forming a web socket protocol. For example, by embedding the role of a web server inside a video recording application, the video recording application can be connected to a video monitoring application and a web socket protocol.

In this case, the administrator terminal 510 controls the image recording application based on the confirmation result in the process of installing the image recording application on the smart terminal 530, thereby setting the environment for the smart terminal 530 , A camera module, a communication module, a microphone, a speaker, a memory, or a battery).

The smart terminal 530 is disposed at an arbitrary position and generates image data using a camera and transmits the image data to the user terminal 520 as the image recording application is driven. For example, the smart terminal 530 may stream video data to the user terminal 520. On the other hand, the smart terminal 530 may store the image data in the memory instead of streaming the image data, and may transmit the image data to the user terminal 520 according to a predetermined period.

At this time, the smart terminal 530 may transmit / share the image data through a server previously associated with a pre-stored application in the smart terminal 530, a pre-installed application distinguished from the image recording application, or a predetermined cloud account.

The user terminal 520 receives the image data from the smart terminal 530 through the image monitoring application-the image monitoring application is communicated with the image recording application.

Accordingly, the user terminal 520 provides image data to the user of the user terminal 520 through the image monitoring application.

At this time, the smart terminal 530 may transmit the encrypted image data to the user terminal 520 after encrypting the image data, instead of transmitting the image data itself to the user terminal 520. In this case, the user terminal 520 can receive the encrypted image data, decrypt the encrypted image data, and restore the image data, thereby providing the restored image data to the user of the user terminal 520.

The smart terminal 530 may generate not only image data but also voice data to be recorded in a microphone included in the smart terminal 530 and transmit the generated voice data to the user terminal 520. [ In such a case, the user terminal 520 may receive the voice data and provide the voice data to the user of the user terminal 520.

Also, the user terminal 520 can control the video recording application installed in the smart terminal 530 through the video monitoring application. Accordingly, the smart terminal 530 can be controlled by the video recording application in accordance with the instructions of the user terminal 520. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (6)

The smart terminal obtains the root authority of the smart terminal connected to the administrator terminal through the rooting application installed in the administrator terminal, and acquires the root authority of the smart terminal connected to the administrator terminal, Confirming the state of the mobile terminal;
Installing, through the routing application, an image recording application to the smart terminal based on the confirmation result, the image recording application controlling operation of the smart terminal including operations of the camera and the communication module;
Generating image data using the camera as the image recording application is driven in the smart terminal disposed at an arbitrary position;
Receiving image data from the smart terminal through a video monitoring application installed in a user terminal and operated based on a web browser, the video monitoring application being connected to the video recording application by communication; And
Providing the image data through the image monitoring application;
Lt; / RTI >
The step of installing the video recording application
And controlling the image recording application based on the result of the checking to set the environment for the camera including the image quality of the image data to be generated through the image recording application and the image recording application among the communication modules included in the smart terminal And setting the communication module to be used for transmitting the image data to be generated through the communication module,
The video recording application
A role of a web server is built in the video recording application and connected to the video monitoring application through a web socket protocol,
The front and rear cameras of the smart terminal are selectively turned on / off according to commands transmitted to the video recording application,
The step of generating the image data
Transmitting / sharing the image data through a contact pre-stored in the smart terminal
The method comprising the steps of: delete delete delete Claim 5 has been abandoned due to the setting registration fee. The method according to claim 1,
The video recording application
Wherein the mobile terminal is driven or stopped in response to an on / off state of the smart terminal. Claim 6 has been abandoned due to the setting registration fee. An administrator terminal installed with a rooting application;
A user terminal equipped with a video monitoring application; And
Smart terminal
/ RTI >
The administrator terminal
Acquiring the root authority of the smart terminal connected to the administrator terminal through the routing application and checking the status of the smart terminal including the state of the camera and the communication module of the smart terminal using the obtained root authority, And an image recording application installed in the smart terminal, the image recording application controlling operation of the smart terminal including operations of the camera and the communication module based on the confirmation result,
The smart terminal
And generating image data using the camera as the image recording application is driven,
The user terminal
The image monitoring application operating on a web browser, the image monitoring application being connected to the image recording application by communication, receiving the image data from the smart terminal, providing the image data,
The administrator terminal
And controlling the image recording application based on the result of the checking to set the environment for the camera including the image quality of the image data to be generated through the image recording application and the image recording application among the communication modules included in the smart terminal And setting the communication module to be used for transmitting the image data to be generated through the communication module,
The video recording application
A role of a web server is built in the video recording application and connected to the video monitoring application through a web socket protocol,
The front and rear cameras of the smart terminal are selectively turned on / off according to commands transmitted to the video recording application,
The smart terminal
And transmitting / sharing the image data through a contact pre-stored in the smart terminal.

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