KR100889600B1 - Network camera for homenetwork - Google Patents

Abstract

A network camera for a home network is disclosed. The present invention provides an image pickup device unit for converting a captured image into an electrical signal; A wired module for converting an electrical signal of the imaging device unit into a first image signal having a first resolution for wired service; A mobile module for converting an electrical signal of the imaging device unit into a second video signal having a second resolution which is a resolution of a mobile phone; A wired communication module connected to a PC to receive information about a first resolution set in the PC, transmit the information to the wired module, and transmit the first image signal converted by the wired module to the PC; And a wireless communication module connected with a mobile phone to receive information on a second resolution from the mobile phone and transmit the information on the second resolution to the mobile module, and transmit the second image signal converted by the mobile module to the mobile phone. According to the present invention, there is no need to go through the video server, and the efficiency and quality of the video monitoring service can be improved by considering the environment of the mobile phone separately, controlling the operation of the network camera in the PC or the mobile phone, and controlling the network camera. Enables power management of multiple home appliances.

Description

Network camera for home network {Network camera for homenetwork}

The present invention relates to a home network, and more particularly, to a network camera for a home network capable of real-time monitoring and remote control of home appliances by interworking a PC and a mobile phone.

Technological development of the service which connects a network camera and a mobile phone is actively progressing. In the domestic market, attempts to link network cameras and mobile phones are in the early stages of service, and there are many technical supplements. Initially, the development of WAP type was progressed, but almost all companies did not implement commercial service and ended up in demo stage. Recently, as the WIPI-based VM is developed, progress is being made little by little.

Since most of the conventional methods are through a video server in the middle rather than a direct linkage between a network camera and a mobile phone, when a large number of users are generated and simultaneous access to the video server increases, the burden on the stability of the service increases. In order to solve this problem, the expansion of the video server may increase the operation maintenance cost. In addition, some companies operate in the form of peer-to-peer (P2P), which communicates directly between the network camera and the mobile phone due to the burden of operating such a video server. Because it operates in the module to service data of fixed resolution, mobile service is difficult in high resolution of CIF or VGA level, and when QCIF level small image is used for mobile, image quality inevitably deteriorates in PC.

Even in the US, which has a big market in relation to video equipment such as network cameras, at the present stage, PDA phones and video equipments, which are easier to develop technology than in general mobile phones, are connected and serviced, but the penetration rate of PDA phones is not high. Increasingly, there is a demand for interworking with general mobile phones. At present, many interested companies from abroad are trying to introduce technology from domestic developers with much interest in domestic technology development and service situation.

On the other hand, the home network refers to the transfer of information by connecting each space in the house (for example, a room, kitchen, living room, porch, etc.). Home appliances that have a network communication function connected to all information appliances in the home and are connected and serviced through a wired / wireless network are collectively referred to as 'information appliances', and so-called home networking is called a home appliance.

When a home network is established, it is possible to connect external information directly through a home appliance such as an air conditioner or a TV, as well as to a PC through a server when connecting a home and an outside home.

Home network service includes video monitoring function, intergenerational video call function, gas valve inquiry system, heating control system, door opening function of household entrance or common entrance, security / disaster prevention function (gas, crime prevention, emergency detection), remote meter reading inquiry Function, lighting control system.

How to link a network camera and a mobile phone in a home network can be divided into two types.

The first is to set up a video server for interfacing a network camera with a mobile phone. In this case, the network camera does not directly connect with the mobile phone but first transmits the compressed video data to the video server. At this time, if the coder used in the mobile phone and the coder embedded in the network camera are different, the video server recovers the compressed data transmitted from the video server and recompresses the data into a format compatible with the coder used in the mobile phone. In the process of recompression, the resolution of the video input from the network camera is adjusted to match the size of the mobile phone LCD. However, if the video server goes through this way, an effective demonstration is possible in the situation where the number of simultaneous connections is not considered in the initial demonstration stage. Considering the domestic situation in which the number of frames that are gradually being serviced due to the increasing speed of wired / wireless networks is required, operating such a video server will be a tremendous burden on the stability. In terms of cost, it is inevitable.

In the second case, the network camera and the mobile phone directly interwork between the network camera and the mobile phone without a video server in the form of P2P. That is, in one service process, images are transmitted to a PC as a wired device and a mobile phone as a wireless device. Therefore, the same data is transmitted via wired and wireless. In the early days of developing network cameras and mobile phones, most of the developments were via video servers. However, P2P types are increasingly being developed rather than via video servers. In this case, the resolution of the image is determined by setting on the PC. Therefore, in case of setting CIF or VGA level video as service video resolution in PC, compressed data is transmitted in the same resolution to both client program of PC and viewer program of mobile phone. However, the mobile phone's LCD size is much smaller, so it is not easy to service.

In other words, in case of actual installation and service, each user selects and uses various resolutions according to their needs. This needs to be driven.

However, this requires video compression technology that can encode software in real time even on low-end CPUs such as network server equipment. Through this, wired service must use hardware video codec chip and software video compression codec for mobile service to drive wired module and mobile module, respectively, so that wired and mobile can be operated normally regardless of PC resolution setting. . However, currently known video compression technology, such as MPEG-4, is difficult to process in real time in software simultaneously with a hardware chip in a system using such a low-spec CPU.

Therefore, there is a problem in that a method of interworking a network camera and a mobile phone according to the related art has an excessive operation maintenance cost of the video server, and it is not easy to provide a video monitoring service because the environment of the mobile phone is not considered separately from the PC.

Accordingly, the technical problem to be achieved by the present invention is to provide a network camera for a home network, which does not need to go through a video server and can improve the efficiency and quality of a video monitoring service by considering a mobile phone environment separately. .

In order to achieve the above technical problem, the present invention provides an image pickup device unit for converting a photographed image into an electrical signal; A wired module for converting an electrical signal of the imaging device unit into a first image signal having a first resolution for wired service; A mobile module for converting an electrical signal of the imaging device unit into a second video signal having a second resolution which is a resolution of a mobile phone; A wired communication module connected to a PC to receive information about a first resolution set in the PC, transmit the information to the wired module, and transmit the first image signal converted by the wired module to the PC; And a wireless communication module connected to a mobile phone to receive information on a second resolution from a mobile phone, transmit the information on the second resolution to the mobile module, and transmit the second image signal converted by the mobile module to the mobile phone. Provides a network camera for a network.

In addition, in order to achieve the above technical problem, the present invention is an image pickup device unit for converting the captured image into an electrical signal; A wired module for converting an electrical signal of the imaging device unit into a first image signal having a first resolution for wired service; A mobile module for converting an electrical signal of the imaging device unit into a second video signal having a second resolution which is a resolution of a mobile phone; Connected to a PC, receives information about the first resolution set in the PC and transmits it to the wired module, transmits the first image signal converted in the wired module to the PC, the home appliance control signal received from the PC A wired communication module for transmitting to a communication port; A home appliance connected with a mobile phone, receiving information on a second resolution from a mobile phone, transmitting the second resolution signal to the mobile module, transmitting the second video signal converted by the mobile module to the mobile phone, and receiving the mobile phone A wireless communication module for transmitting a product control signal to a communication port; And a communication port for transmitting the home appliance control signal to a relay connected to at least one home appliance to control power on or power off of the home appliance.

According to the present invention, there is no need to go through the video server, and the efficiency and quality of the video monitoring service can be improved by considering the environment of the mobile phone separately, controlling the operation of the network camera in the PC or the mobile phone, and controlling the network camera. Through the effect of enabling the power management of various home appliances.

The present invention provides a video device capable of simultaneously inputting a network function and an image, such as a network camera, and provides a method of interworking the video device with a mobile phone and a PC.

Hereinafter, with reference to the drawings will be described a preferred embodiment of the present invention. However, embodiments of the present invention illustrated below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below.

1 is a block diagram of a network camera for a home network according to an embodiment of the present invention.

The need for the ability to remotely monitor and control in-home video is largely on the go. In addition, thorough protection from hacking is required for the growth of the home network field. As in the present invention, more stable preparation is possible by interlocking a mobile phone as well as a PC. For example, in addition to the ID and password, which are common security systems, mobile phone number authentication can be used for additional security settings.

The imaging device unit 110 converts an image captured by the lens of the camera 100 into an electrical signal. The imaging element unit 110 is composed of, for example, a CMOS sensor, a CCD sensor, or the like. If necessary, the imaging device unit 110 may include a filter for removing noise, an amplifier for amplifying an electrical signal, and the like.

The wired module 120 converts the electrical signal of the imaging device unit 110 into a first image signal having a first resolution for wired service. Preferably, when the wired module 120 receives the image request signal from the PC 181 via the wired communication module 140, the wired module 120 starts converting the electrical signal of the imaging device unit 110 into the first image signal. When the image request stop signal is received from the PC 181 via the wired communication module 140, the PC 181 may be configured to stop converting the electrical signal of the imaging device unit 110 into the first image signal.

The mobile module 130 converts the electrical signal of the imaging device unit 110 into a second image signal having a second resolution, which is the resolution of the mobile phone 182. For example, the mobile module 130 requests the LCD resolution information from the mobile phone 182 through the wireless communication module 150, and the LCD resolution information received through the wireless communication module 150 from the mobile phone 182. Is set to the second resolution. In the case of the mobile development tool (SDK), there is a function that can read the LCD resolution information of the mobile phone 182. Therefore, by reading the LCD information of the mobile phone 182 by using the corresponding function it is possible to deliver the resolution information required for the network camera (100).

The mobile module 130 is a separate module from the wired module 120 and is an independent module for mobile service. Preferably, the mobile module 130 is configured to encode the electrical signal of the image capturing device unit 110 by using a moving image codec stored in a firmware form and convert it into a second image signal. Accordingly, for the wired service providing the image to the PC 181, the data compressed through the hardware image codec chip embedded in the network camera is basically used, and the mobile service providing the image to the mobile phone 182 is provided. Data converted using a software image compression codec is used. Preferably, when the mobile module 130 receives the video request signal from the mobile phone 182 via the wireless communication module 150, the mobile module 130 starts converting the electrical signal of the imaging device unit 110 into the second video signal. When the image request stop signal is received from the mobile phone 182 via the wireless communication module 150, the conversion of the electrical signal of the imaging device unit 110 to the second image signal may be stopped.

The wired communication module 140 is connected to the PC 181 to receive information on the first resolution set in the PC 181 and transmit the information to the wired module 120. In addition, the wired communication module 140 transmits the first image signal converted by the wired module 120 to the PC 181. The wired communication module 140 includes, for example, an Ethernet controller, an IEEE 1394 interface, a USB interface, and the like.

The wireless communication module 150 is connected to the mobile phone 182 to receive information about the second resolution from the mobile phone 182 and transmit the information to the mobile module 130. In addition, the wireless communication module 150 transmits the second image signal converted by the mobile module 130 to the mobile phone 182. The wireless communication module 150 includes, for example, wireless communication means supporting Bluetooth, Wi-Fi, ZigBee, and the like. As described above, in the present invention, the network camera 100 and the mobile phone 182 to directly interwork without a video server in the middle of the P2P form.

Preferably, the wireless communication module 150 transmits the second video signal to the server of the corresponding mobile communication company according to the incoming information such as the MDN value of the mobile phone 182 to provide the service to the mobile phone 182. Can be configured. In this case, the mobile phone 182 may receive the second video signal through the base station of the mobile communication company.

As described above, the wired module 120 operates separately and the mobile module 130 operates to receive the phone LCD information, convert the resolution, and transmit the compressed information, thereby implementing a stable service integrating wired and wireless.

2 is a block diagram of a network camera for a home network according to another embodiment of the present invention.

The imaging device unit 210 converts an image captured by the lens of the camera 200 into an electrical signal. In accordance with the motor operation of the lens driver 271, the focus and magnification of the image photographed by the imaging element unit 210 are changed.

The wired module 220 converts an electrical signal of the image capturing device unit 210 into a first image signal having a first resolution for wired service.

The mobile module 230 converts an electrical signal of the imaging device unit 210 into a second image signal having a second resolution, which is a resolution of the mobile phone 282.

The wired communication module 240 is connected to the PC 281, receives information about the first resolution set by the PC 281, and transmits the information to the wired module 220. In addition, the wired communication module 240 transmits the first image signal converted by the wired module 220 to the PC 281.

The wireless communication module 250 is connected to the mobile phone 282 to receive information about the second resolution from the mobile phone 282 and transmit the information to the mobile module 230. In addition, the wireless communication module 250 transmits the second image signal converted by the mobile module 230 to the mobile phone 282.

When the camera control signal is received from the PC 281 or the mobile phone 282 through the wired communication module 240 or the wireless communication module 250, the controller 261 receives the motor of the lens driver 271 according to the camera control signal. And a motor of the rotor 272.

The lens driver 271 adjusts the focus and magnification of the lens by driving a motor connected to the lens.

The rotating machine 272 drives a motor connected to the camera body 200 to adjust the angle of the camera body 200.

Accordingly, the pan tilter, zoom, and focus control of the network camera 200 can be performed.

3 is a block diagram of a network camera for a home network according to another embodiment of the present invention.

The imaging device unit 310 converts an image captured by the lens of the camera 300 into an electrical signal.

The wired module 320 converts the electrical signal of the imaging device unit 310 into a first image signal having a first resolution for wired service.

The mobile module 330 converts an electrical signal of the imaging device unit 310 into a second image signal having a second resolution, which is a resolution of the mobile phone 382.

The wired communication module 340 is connected to the PC 381, receives information about the first resolution set in the PC 381, and transmits the information to the wired module 320. In addition, the wired communication module 340 transmits the first image signal converted by the wired module 320 to the PC 381. The wired communication module 340 transmits a home appliance control signal received from the PC 381 to the communication port 362.

The wireless communication module 350 is connected to the mobile phone 382, receives information about the second resolution from the mobile phone 382, and transmits the information about the second resolution to the mobile module 330. In addition, the wireless communication module 350 transmits the second image signal converted by the mobile module 330 to the mobile phone 382. The wireless communication module 350 transmits the home appliance control signal received from the mobile phone 382 to the communication port 362.

The communication port 362 transmits a home appliance control signal to a relay 390 connected to one or more home appliances 391-399 to control power on or off of the home appliances 391-399. The communication port 362 may, for example, perform RS485 communication with the relay 390.

The invention can be implemented via software. When executed in software, the constituent means of the present invention become code segments for performing the necessary work. The program or code segments may be stored on a processor readable medium or transmitted by a computer data signal combined with a carrier on a transmission medium or network.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary and will be understood by those of ordinary skill in the art that various modifications and variations can be made therefrom. However, such modifications should be considered to be within the technical protection scope of the present invention. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a block diagram of a network camera for a home network according to an embodiment of the present invention.

2 is a block diagram of a network camera for a home network according to another embodiment of the present invention.

3 is a block diagram of a network camera for a home network according to another embodiment of the present invention.

Claims (4)

delete delete An imaging device unit converting the captured image into an electrical signal; A wired module for converting an electrical signal of the imaging device unit into a first image signal having a first resolution for wired service; A mobile module for converting an electrical signal of the imaging device unit into a second video signal having a second resolution which is a resolution of a mobile phone; A wired communication module connected to a PC to receive information about a first resolution set in the PC, transmit the information to the wired module, and transmit the first image signal converted by the wired module to the PC; And A wireless communication module connected to a mobile phone, receiving information on a second resolution from a mobile phone, transmitting the second resolution information to the mobile module, and transmitting the second video signal converted by the mobile module to the mobile phone, The mobile module, Requesting the LCD resolution information from the mobile phone through the wireless communication module, and setting the LCD resolution information received from the mobile phone through the wireless communication module to the second resolution. . An imaging device unit converting the captured image into an electrical signal; A wired module for converting an electrical signal of the imaging device unit into a first image signal having a first resolution for wired service; A mobile module for converting an electrical signal of the imaging device unit into a second video signal having a second resolution which is a resolution of a mobile phone; Connected to a PC, receives information about the first resolution set in the PC and transmits it to the wired module, transmits the first image signal converted in the wired module to the PC, the home appliance control signal received from the PC A wired communication module for transmitting to a communication port; Is connected to a mobile phone, receives the information on the second resolution from the mobile phone and transmits to the mobile module, and transmits the second video signal converted in the mobile module to the mobile phone, which is received from the mobile phone A wireless communication module for transmitting a home appliance control signal to a communication port; And And a communication port for transmitting the home appliance control signal to a relay connected to at least one home appliance to control power on or power off of the home appliance.

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