KR20020055234A - Camera with radio communication ability and remote monitoring system using the same - Google Patents

Abstract

PURPOSE: A camera with wireless communication function and a remote monitoring system using the same are provided to control and transmit data in wireless by combining one-way video communication technology with a real time remote control technology. CONSTITUTION: When abnormal symptom appears or an emergency situation occurs, a camera system(100) transmits a short message, audio, video, or etc. to a portable terminal(200) of a specific office such as a police, fire station, or a person through the existing wireless network. The camera system(100) makes information as a bit stream, then transmits the information to a terminal(200) through a wireless network and an exchange. The user of the terminal(200) can confirm immediately the situation through a search window on the terminal(200) and also control one's own position. That is, the terminal can process the image of the camera at real time and control the camera.

Description

CAMERA WITH RADIO COMMUNICATION ABILITY AND REMOTE MONITORING SYSTEM USING THE SAME}

The present invention provides a camera device having a wireless communication function and a remote monitoring system using the same, particularly video, still images, and audio of a remote location, a dangerous area, or a place requiring constant monitoring through a current wireless network or an IMT-2000 broadband communication network. A camera device having a wireless communication function for transmitting to a portable wireless terminal for monitoring by a terminal user, and a remote monitoring system using the same.

Existing remote, hazardous areas, or locations that require constant monitoring are simply monitoring unidirectional wired transmissions with no special control.

Such a conventional surveillance system is expensive because it requires expensive equipment and requires a monitoring agent. Recently, a remote monitoring system using the Internet has been introduced. Schematic diagram of a remote monitoring system. In such a conventional remote monitoring system, the image input to the camera 1 is compressed and encoded and stored in the server 3 through the router 2 and transmitted to the remote PC or personal portable terminal 4 via the Internet network. do. The wired remote monitoring system is equipped with an Ethernet port in a camera capable of remote control and assigns an IP address to each camera so that an IP address is provided through a separately installed server and network. However, a remote monitoring system using a complete wireless control and transmission technology has not been known yet, so development is required.

SUMMARY OF THE INVENTION An object of the present invention is to meet the above-mentioned demands of the prior art. A camera system having a wireless communication function capable of completely wireless control and transmission by using a wireless one-way video communication technology and a real-time remote control technology and using the same It is to provide a remote monitoring system.

One aspect of the present invention for achieving the above object is a remote monitoring system using a wireless communication comprising a camera system and a wireless terminal, the camera system is

An image sensor;

An audio / video (A / V) codec for processing audio data and video data, respectively;

An audio / video (A / V) encoder for compressing sampling data processed by the audio / video codec to produce a bitstream;

A wireless RF module for processing video and audio data encoded by a camera system for transmission over a wireless network;

A camera system interface unit for interfacing the audio / video encoder with a wireless RF module;

A duplexer for switching transmission and reception so that the same antenna can be used for transmission and reception; And

An antenna for transmitting video and audio data of the camera system to a personal mobile terminal through a wireless network,

The wireless terminal includes a display unit; Audio / video codec; Audio / video decoders; A wireless RF module; A terminal interface unit for interfacing the audio / video decoder with a wireless RF module; Duplexer; And remote monitoring system using a wireless communication, characterized in that it comprises an antenna.

Another aspect of the present invention for achieving the above object is a camera device, the camera is

An image sensor;

An audio / video codec for digitizing audio data and video data, respectively;

An audio / video encoder for compressing sampling data processed by the audio / video codec to produce a bitstream;

A wireless RF module for processing video and audio data encoded by a camera system for transmission over a wireless network;

An interface unit for interfacing the audio / video encoder with a wireless RF module;

A duplexer for switching transmission and reception so that the same antenna can be used for transmission and reception; And

And an antenna for transmitting video and audio data of a camera system to a personal portable terminal through a wireless network.

1 is a schematic diagram of a wired remote monitoring system using a conventional video encoder;

2 is a schematic diagram of a remote monitoring system over the air using a video encoder and decoder of the present invention;

3 is a schematic diagram of a camera system of the present invention;

4 is a schematic diagram of a personal wireless terminal system of the present invention;

* Description of the symbols for the main parts of the drawings *

100: camera system 200: wireless terminal

110: camera 120: audio / video codec

130: audio / video encoder 140: wireless RF module

135: camera system interface

150: duplexer 160: antenna

210: display device 220: audio / video codec

230: audio / video decoder 240: wireless RF module

235: terminal interface unit

250: duplexer 260: antenna

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

In the present invention, "video" is the broadest meaning encompassing both moving and still images.

The wireless remote monitoring system of the present invention includes a camera system 100 performing a function corresponding to a server and a wireless terminal 200 performing a function corresponding to a client.

The camera system 100 as a client encodes the video or audio obtained by being installed in a hazardous area or an area requiring constant monitoring to encode a bitstream encoded according to a request of the wireless terminal 200 as a client. 200) is responsible for the transmission.

On the other hand, the wireless terminal 200 as a client decodes the bitstream received from the camera system 100 at the remote location based on the control function to check the video or audio. By using the wireless communication method as described above, the remote monitoring system can be easily implemented at low cost, and the effect of notifying the monitoring situation to the wireless terminal user in real time can be obtained.

2 is a schematic diagram of a remote monitoring system using wireless communication of the present invention. The present invention applies a coding and decoding technique for MPEG4 and AAC to an existing terminal system, and includes radio control technology.

Referring to FIG. 2, when an abnormal symptom or a special situation occurs in the camera system 100, a terminal 200 carrying a short message, voice, or video by a specific institution or individual such as a police station or a fire station through an existing wireless network To pass.

The information produced as a bitstream in the camera system 100 of the present invention interworks with other exchanges such as a base station controller and an exchange function that plays a role of base station control and base station call processing through a wireless network or connects with another network. It is transmitted to the wireless terminal 200 via the exchange.

The wireless terminal user can immediately check the situation through the search box implemented on the wireless terminal 200 and control the location. In this case, the wireless terminal can process images of the camera in real time, and can operate the camera. The size and image format of the image displayed on the terminal can also be changed by the numeric button manipulation of the terminal.

Meanwhile, in the present invention, a Bluetooth module is mounted on a wireless terminal 200 carried by an individual, connected to a nearby PC or a printer, so that the situation can be analyzed more clearly and immediately delivered to a third party.

3 is a block diagram illustrating an internal configuration of the camera system 100 of FIG. 2 in more detail. In the remote monitoring system using the wireless communication network of the present invention, the camera system 100 further includes components capable of encoding an image and components capable of wireless communication, in addition to the components of the original camera.

Specifically, in the camera system of the present invention, the image sensor 110 is responsible for capturing the situation of the surveillance place, and the audio / video codec 120 digitizes the audio data and the analog data of the video obtained by the image sensor. In addition, the audio / video encoder 130 plays a role of compressing and encoding the sampling data processed by the audio / video codec 120 to produce a bitstream.

In the remote monitoring system of the present invention, the wireless RF module 140 processes frequency conversion and the like so as to transmit video and audio data encoded by the audio / video encoder 130 through a wireless network, and the camera system interface unit 135 ) Interfaces the audio / video encoder 130 and the wireless RF module 140.

Meanwhile, the duplexer 150 switches transmission and reception so that the same antenna can be used for transmission and reception, and the antenna 160 transmits video and audio data to the personal portable terminal 200 through a wireless network or the personal portable wireless terminal. Responsible for receiving from 200.

On the other hand, in the remote monitoring system of the present invention, the wireless terminal 200 includes a display unit 210 for displaying a message or an image; Audio / video codec 220; Audio / video decoder 230; Wireless RF module 240; A terminal interface unit 235 for interfacing the audio / video decoder with a wireless RF module; Duplexer 250; And an antenna 260 transmitting and receiving with the camera device.

Hereinafter, an operation process of the camera system of the present invention and a remote monitoring system using the same will be described in detail.

The camera system 100 of the present invention receives raw data from the image sensor 110 of the camera, and processes the audio / video codec 120 by dividing it into audio and video codecs, while sampling analog data. To digitize. The data sampled by the audio / video codec 120 is processed by an audio / video encoder, where it is compressed and generated as bitstream data. The camera system interface unit 135 interposed between the audio / video encoder 130 and the wireless RF module 140 is a part that interfaces the existing wireless modem with the video code part without using a separate card or chip. Is designed. The wireless RF module 140 is processed to be transmitted in the air by applying the existing communication method as it is. After processing by the wireless RF module 140 is transmitted to the personal portable terminal 200 via the duplexer 150 and the antenna 160.

Referring to FIG. 4, the information transmitted from the camera system 100 is received through the wireless RF module 240 of the personal portable terminal 200 via the antenna 260 and the duplexer 250 through a wireless network. As such, the bitstream received by the wireless RF module 240 is processed by the audio / video decoder 230. That is, the bitstream is decoded in the audio / video decoder 230 including two decoding apparatuses, audio and video. In addition, the video decoder by the terminal interface unit 235 may be designed in a direction that does not use a separate card or chip to interface the existing wireless modem and the video decoding portion. As a result, the decoded digital signal reproduces audio and video through the audio / video codec 220, and the reproduced audio and video data is transmitted to the wireless terminal user through the display device or the speaker 210. When the service is completed, the wireless terminal 200 returns to the normal communication state.

The remote monitoring system of the present invention can provide a simple and high-level wireless remote camera control compared to a conventional surveillance camera and an image control device on the Internet, which can be achieved in terms of cost and manpower by using a wireless communication technology of a conventional terminal. It has a significant effect on greatly reducing the load on economic and structural obstacles.

Claims (3)

A remote monitoring system using a wireless communication including a camera system and a wireless terminal, the camera system An image sensor; An audio / video codec for digitizing audio data and video data, respectively; An audio / video encoder for compressing sampling data processed by the audio / video codec to produce a bitstream; A wireless RF module for processing video and audio data encoded by a camera system for transmission over a wireless network; A camera system interface unit for interfacing the audio / video encoder with a wireless RF module; A duplexer for switching transmission and reception so that the same antenna can be used for transmission and reception; And An antenna for transmitting video and audio data of the camera system to a personal mobile terminal through a wireless network, The wireless terminal includes a display unit; Audio / video codec; Audio / video decoders; A wireless RF module; A terminal interface unit for interfacing the audio / video decoder with a wireless RF module; Duplexer; And remote monitoring system using a wireless communication, characterized in that it comprises an antenna. The remote monitoring system according to claim 1, wherein the wireless terminal further comprises a Bluetooth module. A camera device, wherein the camera is An image sensor; An audio / video codec for digitizing audio data and video data, respectively; An audio / video encoder for compressing sampling data processed by the audio / video codec to produce a bitstream; A wireless RF module for processing video and audio data encoded by a camera system for transmission over a wireless network; A camera system interface unit for interfacing the audio / video encoder with a wireless RF module; A duplexer for switching transmission and reception so that the same antenna can be used for transmission and reception; And And an antenna for transmitting video and audio data of the camera system to a personal portable terminal through a wireless network.