KR20150024203A - Environment monitoring apparatus and method of landfill using mobile application - Google Patents

Abstract

The present invention relates to a device and a method for monitoring a landfill environment using a mobile application. The device for monitoring a landfill environment using a mobile application comprises: a network camera which monitors the whole view and leachate of a landfill; a relay terminal which relays communications between the network camera and a mobile network; and a mobile device which receives an image signal through the relay terminal and the mobile network or wireless LAN communications, displays the image signal on a screen, and transmits a control signal for controlling the operation of the network camera to the network camera by using a landfill environment monitoring dedicated mobile application. Therefore, the device of the present invention can monitor the environment of the landfill by driving the mobile application in the mobile device to connect to the network camera installed in the landfill and check an image photographed in real time.

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus and method for monitoring a landfill environment using a mobile application,

The present invention relates to an apparatus and method for monitoring a landfill environment using a mobile application, and more particularly, to an apparatus and method for monitoring a landfill environment using a mobile application that monitors a landfill environment in real time using a network camera installed in a landfill .

Waste landfill is a method of disposal of wastes generated by daily life or industrial activity, and the waste collected by using metabolic functions of nature is stored in the ground.

Waste landfills are constructed in a valley or in a letter where sufficient space is available for landfill.

In order to prevent contaminated leachate from entering the underground water, a drainage facility is installed on the bottom of the landfill. The resulting leachate is rapidly discharged out of the landfill through the leachate drainage facility and transferred to the leachate treatment facility. And then discharged.

For example, Patent Literature 1 and Patent Literature 2 disclose techniques for controlling leachate and gas generation in waste landfills.

Patent Document 1 discloses a leachate leaking and safety monitoring system for a landfill site using an optical fiber sensor that detects a damage to a monolayer and leakage of leachate due to measurement of a temperature change due to the inflow of leachate by connecting a plurality of sensors with a single cable .

Patent Document 2 proposes a method for maximizing the recycling efficiency of methane gas resources and appropriately controlling the amount of methane gas generated as a main component of the methane gas continuously generated during the landfill and decomposition stabilization process of the refuse, A method of controlling the amount of generation and an apparatus therefor are disclosed.

Korea Patent Registration No. 10-0978383 (issued on August 26, 2010) Korean Patent Registration No. 10-0283499 (published on March 2, 2001)

Recently, a network camera for observing the landscape of the landfill has been installed and operated.

However, according to the conventional system for monitoring the landfill environment using the network camera, only the control system of the landfill management office observes the image using the network camera, so that the operator can not observe the landfill when the operator is outside.

The network camera according to the related art can stream video (H.264, MPEG) in real time using RTSP / RTP (Real Time Streaming Protocol / Real Time Transport Protocol) or transmit motion image (MJPEG) using Hypertext Transfer Protocol Provide video in a continuous display format.

However, although the RTSP network camera operates without problems in a private network, the problem is that in a public network, a gateway or a router blocks the protocol and does not operate smoothly there was.

In order to solve such a problem, a media server providing a protocol conversion service by using HLS (HTTP Live Streaming) is provided for RTSP. A delay of at least 8 seconds to a maximum of 16 seconds occurs in the process of transcoding for protocol conversion and resolution suitable for mobile environment.

As described above, the landfill environment monitoring system using the network camera according to the prior art has a limitation in monitoring the landfill environment in real time due to the delay time generated in the process of transmitting the image from the network camera to the mobile device through the media server.

It is an object of the present invention to provide a landfill environment monitoring apparatus using a mobile application that can observe the environment of a landfill in real time using a leachate sensing network camera together with a sensor for monitoring the leachate level, And a method thereof.

It is another object of the present invention to provide an apparatus and method for monitoring a landfill environment using a mobile application capable of observing the environment of a landfill from outside the landfill using a mobile network.

In order to achieve the above object, a landfill environment monitoring apparatus using a mobile application according to the present invention includes a network camera for monitoring foreground and leachate of a landfill, a relay terminal for relaying communication between the network camera and the mobile network, And a mobile device for receiving a video signal through the mobile network or wireless LAN communication with the relay terminal using a mobile application dedicated to environmental monitoring, displaying the video signal on the screen, and transmitting a control signal for controlling the operation of the network camera to the network camera .

The network camera includes a first network camera capable of remotely adjusting the pan, tilt, and zoom functions to monitor the landfill, and a second network camera monitoring the leachate level .

The mobile device includes a communication module for performing a mobile network or wireless LAN communication, a display module for displaying a received video signal on a screen and receiving a touch operation for controlling a PTZ operation of the first network camera, And a control unit for controlling the display unit and the received video signal to be displayed on the screen of the display module and generating a control signal for controlling the PTZ operation of the first network camera.

The mobile device further includes a framework for streaming the moving picture signal received from the first network camera, an HTTP manager for streaming the video signal received from the second network camera, and an Android platform operating on the Android operating body .

The mobile application may display a variety of operation menus on a screen and display images received from the first and second network cameras using a graphical user interface and a display, And a setting activity for setting authentication information and operation information required for driving the mobile application, a control activity for generating a control signal for controlling the PTZ operation of the second network camera, and a setting activity.

In accordance with another aspect of the present invention, there is provided a method of monitoring a landfill environment using a mobile application, the method comprising: (a) capturing a landfill foreground and a leachate level using first and second network cameras; (b) (C) displaying images photographed by the first and second network cameras selectively on a screen of the mobile device by driving a mobile application installed in the mobile device to connect to the first and second network cameras; .

The method of claim 1, wherein step (c) comprises: (c1) authenticating access rights to the first and second network cameras; (c2) when authentication of the access right is completed in step (c1) Displaying the photographed image on a screen; and (c3) displaying the image of the selected network camera on the screen if the network camera is selected to change the network camera displaying the image in the step (c2).

(D) transmitting the control signal for controlling the PTZ operation of the first network camera to the mobile device in the mobile device, and controlling the PTZ operation of the first network camera.

In the step (c), when the first network camera supports an Android SDK (Software Development Kit), an image captured by the first network camera is streamed through a framework linked to the Android SDK .

In the step (c), when the second network only supports the standard protocol, the second network camera streams an image shot through the HTTP manager provided by Android.

As described above, according to the apparatus and method for monitoring a landfill environment using a mobile application according to the present invention, a mobile application is activated in a mobile device and connected to a network camera installed in a landfill. Then, The effect of being able to monitor the environment is obtained.

That is, according to the present invention, there is a problem that a gateway or a router in a public network blocks a corresponding protocol of a video signal photographed by a network camera and does not operate smoothly, and a protocol server in a control server or a separate media server, It is possible to solve the problem that the delay occurs in the course of the code conversion work for changing.

According to the present invention, the operation of the network camera having the PTZ function is controlled to observe the landfill environment accurately, so that the operator can observe the landfill environment in real time outside the landfill.

1 is a configuration diagram of a landfill environment monitoring apparatus using a mobile application according to a preferred embodiment of the present invention;
FIG. 2 is a configuration diagram of a mobile application stored in the mobile device shown in FIG. 1;
3 is a flowchart illustrating a process of receiving and displaying a video signal of a first network camera in a mobile application,
4 is a flowchart illustrating a process of controlling a PTZ operation of a first network camera,
5 is a flowchart illustrating a process of receiving and displaying a video signal of a second network camera,
FIG. 6 is a diagram illustrating an example of a landfill monitoring image displayed on a screen of a mobile device,
FIG. 7 illustrates an example of a leachate detection image displayed on a screen of a mobile device,
8 is an exemplary view illustrating a leachate level monitoring image displayed on a mobile device screen in a horizontally aligned state,
FIG. 9 is a flowchart illustrating a method of monitoring a landfill environment using a mobile application according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus and method for monitoring a landfill environment using a mobile application according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a landfill environment monitoring apparatus using a mobile application according to a preferred embodiment of the present invention.

As shown in FIG. 1, a landfill environment monitoring apparatus using a mobile application according to a preferred embodiment of the present invention includes a network camera 10 for monitoring a foreground and a leachate of a landfill, a communication between a network camera 10 and a mobile network (Hereinafter referred to as " mobile application ") for relaying the video signal to the relay terminal 20 and the mobile terminal via the mobile network, 10 to the network camera 10. The network camera 10 includes a mobile device 30,

In addition, a landfill environment monitoring apparatus using a mobile application according to a preferred embodiment of the present invention includes a control server (not shown) for receiving an image signal photographed by the network camera 10 and performing environment monitoring work in real time .

However, in the present embodiment, the mobile device 30 can directly receive the video signal photographed by the network camera 10 through the mobile network without passing through the control server, and display the video image in real time.

Accordingly, the present invention can solve the problem that a gateway or a router in a public network blocks a corresponding protocol of a video signal photographed by a network camera, thereby failing to operate smoothly.

In addition, the present invention can solve the problem that delay occurs in a process of performing protocol conversion in a control server or a separate media server and a code conversion operation for changing a resolution suitable for a mobile environment.

In this embodiment, the network camera 10 may include a first network camera 11 for monitoring the landfill view and a second network camera 12 for monitoring the leachate level.

The first network camera 11 is a camera that can remotely adjust functions of Pan, Tilt, and Zoom (hereinafter, referred to as 'PTZ') and provides an Android SDK (Software Development Kit) .

Accordingly, in this embodiment, the mobile application 30 is installed in the mobile device 30 so as to receive the video signal photographed by the network camera 10 in a mobile network environment such as long term evolution (LTE) 2).

The second network camera 12 supports a general standard protocol and can be provided with a camera for not providing an SDK for Android.

Here, since the level of the leachate does not rapidly increase or decrease in a short period of time that is not perceivable by a person, the second network camera 12 in the present embodiment can take an image in seconds.

The relay terminal 20 is provided as a gateway or a router and transmits a video signal photographed by the network camera 10 to a mobile network and transmits a control signal received from the mobile device 30 to a network camera 10).

The configuration of a mobile device and a mobile application stored therein will be described in detail with reference to FIG.

2 is a configuration diagram of a mobile application stored in the mobile device shown in FIG.

The mobile device 30 may be a smart phone, a tablet PC, a portable computer, or the like, which can access and communicate with an Internet network through a wireless LAN such as a mobile network or Wi-Fi.

The mobile device 30 displays a video signal received from the network camera 10 on the screen and transmits a control signal for controlling the PZY operation of the first network camera 11. [

To this end, the mobile device 30 displays a video signal on a screen and transmits a touch operation to control the PTZ operation of the first network camera 11, such as a communication module (not shown) And a control unit for controlling the display module, the storage unit storing the mobile application, and the received video signal to be displayed on the screen of the display module and generating the control signal to control the PTZ operation of the first network camera.

2, the mobile device 30 includes a framework 31 for streaming moving image signals received from the first network camera 11 based on the Android operating system, An HTTP manager (hyper text transfer protocol manager) 32 for streaming video signals received from the camera, and an android platform 33 operating on the Android operating body.

In addition, the mobile device 30 is provided with a mobile environment monitoring dedicated mobile application 40 for receiving a video signal from the network camera 10, displaying the received video signal on the screen, and controlling the PTZ operation of the network camera 10.

2, the mobile application 40 includes a graphical user interface displaying a variety of operation menus on the screen, a display (GUI & Display) 41, a streaming activity 42 , A control activity 43, and a setting activity 44. [

The framework 31 may be provided as an RED framework interworking with the Android SDK provided by the manufacturer of the first network camera 11.

This framework 31 is located midway between the Android platform 32 and the mobile application 40 and the mobile application 40 is responsible for session / And performs response processing.

On the other hand, the HTTP manager 32, which is provided by Android, processes requests and responses necessary for displaying video signals received from the second network camera 12. [

The operation method of the mobile application will be described in detail with reference to FIGS. 3 and 5. FIG.

FIG. 3 is a flowchart illustrating a process of receiving and displaying a video signal of a first network camera in a mobile application, FIG. 4 is a flowchart illustrating a process of controlling a PTZ operation of a first network camera, FIG. 3 is a flowchart illustrating a process of receiving and displaying a video signal of a network camera. FIG.

3, the streaming activity 42 of the mobile application 40 is connected to the framework 31 to receive a video signal photographed at the first network camera 11, , Registers the listener (setLis), and then requests connection to the first network camera 11.

The streaming activity 42 calls back the 'OnCreate ()' method and calls the 'OnFrameLoaded ()' method to process the frame stored in the peer buffer Data is loaded as a bitmap and displayed on an image viewer (ImageView).

4, the streaming activity 42 requests an image signal to the second network camera 12 when an HttpUrl connection is established with the second network camera through the HTTP manager 32, And displays the image received from the network camera 12 on the screen.

FIG. 6 is a diagram illustrating an example of a landfill image monitored on a screen of a mobile device.

5 and 6, the control activity 43 of the mobile application 40 controls the PTZ operation of the first network camera 11 according to a touch operation performed on the screen of the display panel Occurs.

To this end, the graphical user interface and the display 41 can display an 8-direction arrow, a '+' and an '-' icon for controlling the PTZ operation on the screen, and an icon for capturing the displayed image.

At the same time, the graphical user interface and the display 41 can display the time on the image that is currently being updated on the display.

At this time, the streaming activity 42 displays the video signal photographed by the first network camera 11 on the screen in real time while controlling the PTZ operation of the first network camera 11.

Meanwhile, FIG. 7 is an exemplary view illustrating a leachate detection image displayed on a screen of a mobile device.

As shown in FIG. 7, when the video signal photographed by the second network camera is displayed on the screen, the streaming activity 42 preferably displays only the time and the capture icon on the video that is currently being updated on the display.

Then, the streaming activity 42 displays a portrait view when the mobile device 30 is rotated, that is, when the mobile device is vertically aligned as shown in FIGS. 6 and 7.

On the other hand, FIG. 8 is an exemplary view illustrating a leachate level monitoring image displayed on a mobile device screen in a horizontally aligned state.

The streaming activity 42 may display a landscape view when the mobile device is in a horizontally aligned state as shown in FIG.

The setting activity 44 sets access rights to the first and second network cameras 11 and 12, for example, a user ID and a password, in accordance with a touch operation performed on the display panel, A camera to be displayed on the screen is selected from among the first and second network cameras 11 and 12 and a 'position in the center of the image' in consideration of the size and the aspect ratio of the image or the 'full image fill' Function can be performed.

Next, referring to FIG. 9, a method of monitoring a landfill environment using a mobile application according to a preferred embodiment of the present invention will be described in detail.

FIG. 9 is a flowchart illustrating a method of monitoring a landfill environment using a mobile application according to a preferred embodiment of the present invention.

In FIG. 9, the first and second network cameras 11 and 12 are always driven to capture the landfill foreground and the leachate level (S10).

At this time, the first and second network cameras 11 and 12 transmit the photographed video signal to the relay terminal 20 through the landfill internal network.

When the operator touches the screen of the mobile device 11 to drive the mobile application 40, the mobile device 30 drives the mobile application 40 (S12).

The mobile application 40 is communicably connected to the network camera 10 via the mobile network or wireless LAN communication and the relay terminal 20 (S14).

At this time, the mobile application 40 receives an ID and a password from the user and transmits the ID and the password to the network camera 10 to authenticate whether the user is an operator having the access authority.

If the access right is not authenticated in step S16, the mobile application 40 displays a message on the screen to notify the access right authentication failure, and stops the operation.

On the other hand, if the access right is authenticated in step S16, the streaming activity 42 of the mobile application 40 displays an image photographed by the network camera 10 set as the initial screen on the screen (S18).

For example, the mobile application 40 may be configured to display an image of the landfill panorama taken by the first network camera 11 at the time of initial operation.

If a change command is input to display the image captured by another network camera 10 in step S20, the mobile application 40 displays the captured image on the selected camera (S22).

In step S24, the mobile application 40 checks whether the selected network camera 10 is the first network camera 11 or not.

When the second network camera 12 is selected in step S24, the streaming activity 42 of the mobile application 40 uses the HTTP manager 32 to display the images per second captured by the second network camera 12 on the screen (S26), and proceeds to step S32.

On the other hand, if the first network camera 11 is selected as the result of the checking in step S24, the streaming activity 42 displays the moving images photographed by the first network camera 11 on the screen in real time using the framework 31 .

In step S28, the graphic user interface of the mobile application 40 and the display 41 check whether the touch operation for the PTZ operation of the first network camera 11 is input. If not, the mobile application 40 performs step S32 .

On the other hand, when the touch operation is inputted as a result of the inspection in step S28, the mobile application 40 generates a control signal according to the input touch operation command and transmits it to the first network camera 11.

Accordingly, the first network camera 11 operates to adjust rotation, tilt, and zoom (S30).

In step S32, the mobile application 40 checks whether a drive stop command is inputted to stop the driving of the mobile application 40, and controls to repeat steps S20 to S32 until a stop command is input.

If the drive stop command is input as a result of the check in step S32, the mobile application 40 stops driving and terminates.

Through the above process, the present invention can monitor the environment of a landfill by connecting a network camera installed in a mobile device landfill by driving a mobile application in a mobile device, and then checking the captured image in real time.

As a result of testing the environment monitoring apparatus using the mobile application according to the present invention, it was found that the invention operates in both a mobile network environment such as LTE and a wireless LAN environment such as Wi-Fi.

As a result of the test, the delay time occurring in the process of displaying the image captured by the first network camera on the screen of the mobile device is about 3 to 3.5 seconds, and the image captured by the second network camera is displayed on the screen of the mobile device It was confirmed that the delay time occurring in the process was about 2 to 2.5 seconds.

Here, the image captured by the first network camera is about 10 frames per second, and the image captured by the second network camera is about 0.5 frames per second.

As described above, the present invention can drastically shorten the delay time of about 8 to 16 seconds occurring in the case of using the existing media server in the mobile network and the wireless LAN environment, thereby enabling to observe the landfill environment in real time smoothly.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

Although the above embodiments have been described using a mobile device based on the Android operating system, the present invention is not limited thereto.

That is, the present invention may be applied not only to the Android operating system, but also to mobile devices based on Apple's IOS and Samsung's own sea OS.

The present invention is applied to a landfill environment monitoring device technology for monitoring a environment of a landfill by connecting a network camera installed in a mobile device landfill by driving a mobile application in a mobile device and checking images photographed in real time.

10: Network camera 11: First network camera
12: second network camera 20: relay terminal
30: mobile device 31: framework
32: HTTP Manager 33: Android Platform
40: Mobile application 41: Graphical user interface and display
42: streaming activity 43: control activity
44: Set Up Activity 45: Waiter

Claims (10)

Network cameras that monitor the foreground and leachate of landfills,
A relay terminal for relaying communication between the network camera and the mobile network;
A mobile device for receiving a video signal through a mobile network or a wireless LAN communication with the relay terminal using a mobile application dedicated to landfill environment monitoring and displaying the video signal on a screen and transmitting a control signal for controlling the operation of the network camera to the network camera Wherein the monitoring unit is configured to monitor the landfill environment using the mobile application. The network camera according to claim 1,
A first network camera capable of remotely adjusting Pan, Tilt, and Zoom functions to monitor the landfill;
And a second network camera for monitoring the level of the leachate. 3. The method of claim 2, wherein the mobile device
A communication module for performing mobile network or wireless LAN communication,
A display module for displaying a received video signal on a screen and receiving a touch operation for controlling a PTZ operation of the first network camera,
A storage unit in which the mobile application is stored;
And controlling the display of the received video signal on the screen of the display module and generating a control signal to control the PTZ operation of the first network camera. The method of claim 3, wherein the mobile device
A framework for streaming video signals received from the first network camera,
An HTTP manager for streaming video signals received from the second network camera;
Further comprising an Android platform operating on an Android operating body. ≪ RTI ID = 0.0 > A < / RTI > 5. The method of claim 4, wherein the mobile application
A graphical user interface for displaying various operation menus on the screen and selecting the displayed operation menus,
A streaming activity for displaying images received from the first and second network cameras on the screen using the framework or the HTTP manager,
A control activity for generating a control signal for controlling the PTZ operation of the second network camera;
And a setting activity for setting authentication information and operation information necessary for driving the mobile application. (a) photographing a landfill foreground and a leachate level using first and second network cameras,
(b) driving a mobile application installed in the mobile device to connect with the first and second network cameras; and
(c) selectively displaying an image photographed by the first and second network cameras on the screen of the mobile device. 7. The method of claim 6, wherein step (c)
(c1) authenticating access rights to the first and second network cameras,
(c2) displaying the photographed image on a predetermined one of the network cameras when the authentication of the right of access is completed in the step (c1); and
(c3) displaying the image of the selected network camera on the screen if the network camera is selected to change the network camera displaying the image in the step (c2). 8. The method according to claim 6 or 7,
(d) transmitting, to the mobile device, a control signal for controlling the PTZ operation of the first network camera in the mobile device to control the PTZ operation of the first network camera. How to monitor landfill environment. 9. The method of claim 8,
Wherein the step (c) comprises: if the first network camera supports an Android SDK (Software Development Kit), the image captured by the first network camera is streamed through a framework linked to the Android SDK A method for monitoring the landfill environment using mobile applications. 10. The method of claim 9,
Wherein the step (c) comprises: if the second network only supports the standard protocol, streaming the image captured by the second network camera through an HTTP manager provided by Android. .

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