CN101227603A - Plug-and-play network digital image display and image monitoring system - Google Patents

Abstract

The invention relates to a Plug-and-Play network digital image display and an image monitoring system, wherein the system comprises a network camera device (IPcam) and a network digital image display (network digital video display), the network camera device and the network digital image display are respectively plugged into an existing power socket in a home or office through a built-in or external Ethernet/power line converter (Ethernet to Power line Adapter) so as to utilize the power lines arranged in the home or office to be mutually connected, so that the image and sound signals extracted by the network camera device can be transmitted to the network digital image display through the power lines and can be displayed through the network digital image display, and the Plug-and-Play (Plug & Play) image monitoring function can be successfully realized on the power socket.

Description

Plug and Play Network Digital Video Display and Video Surveillance System

technical field

The present invention relates to a network digital image display and image monitoring system, especially to a network camera through the existing power socket and power line in the home or office without laying additional Ethernet signal lines. The device can be connected with a network digital image display to realize plug-and-play image monitoring and recording functions on the power socket.

Background technique

As early as 1980, many companies have started to research and develop powerline communication (PLC). Initially, it was used to remotely control electrical equipment such as lighting, water and electricity, and security in the home, and to perform voice communication. The system equipment of PLC depends on According to the different ways of connecting to the backbone network, it can be roughly divided into two types: Access PLC and In-house PLC. Access PLC refers to both the home network and the outdoor network connected to the backbone network. Adopt PLC technology; and indoor PLC means that only the home network adopts PLC technology, and the outdoor network connected to the backbone network adopts other network technologies, such as: ADSL, etc., and its application is also different according to the system type and network bandwidth. Narrowband is suitable for the control of automated home appliances and instruments, and has a history of 10 to 20 years. Broadband is suitable for Internet access, computer resource sharing, and audio and video data transmission.

At present, it is estimated that power companies in more than 40 countries around the world are embarking on a PLC pilot plan. In particular, in many European countries, because most of their buildings are built of stone, ordinary residents are afraid of damaging their stone structures and overall aesthetics. They are less willing to re-layout network lines. Therefore, taking the main regions of Central Europe as an example, the fixed-line penetration rate is only about 20%, which creates a high obstacle to the development of ADSL broadband services. However, because the penetration rate of power line networks in these European countries has almost reached 100%, it is very beneficial to provide broadband services with PLC. Therefore, the research and development of PLC technology in European countries is earlier than other countries, and more time, talents and funds are invested. Therefore, whether it is in access or indoor PLC technology, are in the leading position.

Generally speaking, as shown in FIG. 1, the working principle of PLC is to superimpose a low-power signal 90 on the power waveform 91 of alternating current, so as to transmit the low-power signal 90 through the power line, so that the power line is converted into a communication network, Therefore, in order to ensure that low-power signals and power waveforms can coexist and be separated, the frequency of low-power signals used in PLC narrow-band is about 3-148.5KHz, and the frequency of low-power signals used in PLC broadband is 1-30MHz. In this way, it can be easily separated and separated from the 50 or 60 Hz frequency used by the power waveform. Because PLC technology utilizes existing power lines to transmit the low-power signal 90, compared with other wired broadband communications in development or use, PLC technology has the advantage of not needing to lay network lines again. However, its disadvantages are The power line is different from the general data communication line. When transmitting data on it, it is more susceptible to interference from external noise, and the influence of line signal attenuation is also greater. In addition, because various household appliances connected to the power line have different Impedance, so as the electrical appliances are turned on and off, different impedance values will appear on the power line at any time, making it more difficult to transmit data correctly.

In recent years, a transmission technology called "Homeplug" used to make the power line into a wired network has become more and more mature. This transmission technology is mainly used in home network information appliances. Module types exist, and the converters can be divided into Ethernet and USB due to the different specifications of the conversion connectors. At present, Ethernet is the main type. The American company Intellon, which is a leading chip manufacturer, once targeted more than 500 families in the United States. The "HomePlug" transmission technology was tested on the spot, and it was found that the coverage rate can reach 99%, that is, the power outlets in 99% of the homes can receive the Homeplug 1.0 signal, which proves that PLC technology is indeed a feasible communication technology . Therefore, in recent years, according to the transmission technology of HomePlug 1.0, many industry companies have designed and developed various power line/Ethernet converters 93 (Powerline to Ethernet Adapter) specially designed for homes and small offices, as shown in Figure 2. A power connector 94 and an Ethernet (Ethernet) socket 95 (such as: RJ-45 socket) are provided on the top so that the family or small office with the same power circuit can construct a local area network through the existing power line, and its transmission The speed can generally reach 85Mbps, and it has the protection function of data encryption. Therefore, for home or small office users, the power line/Ethernet converter 93 has provided the most convenient and safest way for the construction of local area network. , so that the coverage of the local area network can be effectively extended to every corner of the home or small office with the same power circuit. In other words, for multi-floor homes or small offices where wiring is difficult or cannot be covered by a wireless network, without laying network cables at all, only the power line/Ethernet converter 93 can be used to utilize both Some power lines completely network your home or office. Generally speaking, when using the power line/Ethernet converter 93 to set up a network, the user can immediately convert the power line in the house into a high-speed and safe network as long as the power line/Ethernet converter 93 is plugged into a power plug. The architecture allows users to securely surf the Internet through power lines, or transmit personal or confidential data over the network, no matter which room they are in the home.

In today's society, in order to maintain the basic needs of life, many families need to go out to work to earn money. In addition to doing housework, they also need to take care of young children and elderly parents on their own. In order to take care of children or parents at any time In daily life, many couples are thinking about installing a network camera in the room of their children or parents, so as to monitor the life dynamics of their children or parents at any time through the computer. In order to achieve this goal, it is necessary to re-layout the network cable in each room of the home, and install a network camera in the children's room or the parents' room, so that the image and sound signals extracted by the network camera can be transmitted to the husband and wife through the network cable. room computer. However, daily life is dynamic, and the activity space is not fixed, but changes at any time, sometimes in the laundry room to handle housework, sometimes in the kitchen to prepare meals, sometimes in the living room to listen to music...so even if the network is installed at home Cameras and computers are also limited by their fixed installation environment, and cannot play their due monitoring effect. If you want to expand the monitoring range to every room, you will have to invest more money and time in laying out More complex network cables, and the addition of multiple network cameras and computers, lead to high costs and cannot be popularized by ordinary people. Therefore, when the aforementioned PLC technology is becoming more and more mature, how to design a network digital image display and image monitoring system with extremely low equipment cost and the simplest system architecture by using the existing power lines in the home or small office, Achieving plug-and-play video surveillance functions has become an important topic for industry players to study and improve.

Contents of the invention

In view of the many shortcomings of the aforementioned traditional monitoring system, the inventor finally developed and designed a plug-and-play network digital image display and image monitoring system of the present invention after long-term hard research and experiments, hoping that the network digital image display can be Receive video and audio signals extracted by a network camera device and play them back through the existing power outlets and laid power lines in the home or office, without re-laying the network cables and without setting up the computer. Come out to realize the plug-and-play video monitoring function.

One of the purposes of the present invention is to provide a plug-and-play network digital image display, which is plugged into the network through a built-in or external power line/Ethernet adapter On the existing power socket in the home or office, to use the power line that has been laid in the home or office to connect with a network camera device. In this way, the network camera device in a certain room can transmit the extracted image and sound signals to the network digital image display in other rooms through the power line, and through the network digital image display, the image and sound Play it out to achieve the plug-and-play environmental dynamic monitoring function on the power socket without the need for additional network cables.

Another object of the present invention is that the network digital image display is provided with a memory card plug interface for reading the digital images stored in the memory card of a general digital camera (Digital Camera) and displaying the digital images on it , as an electronic photo frame, to achieve the purpose of decorating the home space and beautifying the home environment.

Yet another object of the present invention is to protect a plug-and-play image monitoring system formed by the network digital image display and the network camera device, the system also includes a network router (router), one end of the network router It is connected to the Internet (Internet), and the other end is plugged into the existing power socket in the home or office through a power line/Ethernet converter, so that the user can still use it in an environment other than the home or office. Using a personal computer, through the Internet, through the network router and the power line that has been laid in the home or office, the network camera device is connected to each other, and the dynamics in the home or office are monitored.

Another object of the present invention is that the system also includes a network digital video recording device, the network digital video recording device is connected to the network router, so as to receive the video and audio signals transmitted by the network camera device through the network router , and video and audio signals are recorded and stored in the network digital video recording device, and stored for future reference, and can also be viewed through the network digital video display.

Description of drawings

Figure 1 is a schematic diagram of a conventional electric waveform in which a low-power signal is superimposed on an AC power;

Figure 2 is a schematic diagram of the appearance of a traditional power line/Ethernet converter;

Fig. 3 is a circuit block diagram of a network digital video display in the first embodiment of the present invention;

4 is a schematic circuit block diagram of a network digital video display according to a second embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a plug-and-play video surveillance system according to a third embodiment of the present invention;

FIG. 6 is a schematic circuit block diagram of a network camera device in a third embodiment of the present invention; and

FIG. 7 is a circuit block diagram of a network camera device in a fourth embodiment of the present invention.

Symbol Description:

That is the image monitoring system that is used ...

Network Camera Devices ................... 20, 28

Camera Module ...................................22

Image extraction chip ................... 221

Image Decoder Chip                ... 222

Dynamic Random Access Memory ................... 223

Control Module ...................................24

MCU chip ...................................241

Random Access Memory ................... 242

TCP/IP chip                 ... 243, 328

Ethernet physical layer chip ................... 244, 329

Power plug ................... 25, 27, 35, 37

AC/DC Rectifiers ................... 251, 261, 341, 351

Built-in Ethernet/Powerline Converter ...................26, 34

Signal Converter ................... 262, 342

Analog/Digital Signal Converter                                                                                                               

Powerline Network Chips ...................................264, 344

Network Plug Connectors ................... 281, 381

External Ethernet/Powerline Converters ................29, 39, 72

Network Sockets ................... 291, 391

Network digital image display ...................... 30, 38

Imaging module ...................................32

Digital Audio-Video Signal Processor ................... 320

Display Panel ................... 321

Digital/Analog Sound Controller ................... 322

Loudspeaker ................... 323

Memory card insertion interface ................... 324

Button group ...................................326

Memory ................................... 327

Power Lines ...................................40

Power socket ...................................41

Network digital image recording device ...................................................................................................................................50

memory card ...................60

Network Router ...................................70

Internet ................... 71

Detailed ways

In order to make the purpose of the present invention, shape, structure, device features and effects thereof easier to be recognized and understood, the embodiments are given in conjunction with the drawings, and the detailed description is as follows:

The present invention is a plug-and-play network digital image display and image monitoring system, as shown in Fig. 3, in the first embodiment of the present invention, the network digital image display 30 includes a display module) 32 and a built-in Ethernet/power line converter 34, etc., the imaging module 32 is used to play the received digital audio-visual data stream, including a digital audio-visual signal processor 320, a display panel 321 (such as: LCD panel), a digital/analog sound controller 322, a speaker 323, a memory card plug interface 324, a button group 326, a memory 327, a TCP/IP (Transmission Control Protocol/Internet Protocol) chip 328 and an Ethernet physical layer chip 329 and other components, wherein the digital audio-visual signal processor 320 processes the received digital audio-visual data stream, displays the digital image on the display panel 321, and After the digital sound is processed, it will be played by the loudspeaker 323 through the conversion of the digital/analog sound controller 322; the memory card interface 324 is for inserting a memory card (not shown), so that the digital audio-visual The signal processor 320 can read the digital images stored in the memory card, and display the digital images on the display panel 321, so that the network digital image display 30 can be used as an electronic photo frame; The signal processor 320 is connected for the user to input operation instructions; the memory 327 is connected with the digital audio-visual signal processor 320 for temporarily storing the instructions and data required for the operation of the digital audio-visual signal processor 320; the TCP One end of the /IP chip 328 is connected with the digital audio-visual signal processor 320, and its other end is connected with the Ethernet physical layer chip 329, so as to directly communicate with the Internet or other network devices ( Such as: a network router) is connected to each other, so that the network packet received by the Ethernet physical layer chip 329 can be transmitted to the digital audio-visual signal processor 320 through the TCP/IP chip 328 . What needs to be mentioned here is that in the first embodiment, since the TCP/IP chip 328 includes the Transmission Control Protocol (Transmission Control Protocol, referred to as TCP) and the Internet Protocol (Internet Protocol, referred to as IP) , so that the network digital image display 30 can directly connect to the Internet or other network devices (such as: network routers) through the Ethernet physical layer chip 329 without the support of any computer operating system, and receive the Internet or Digital video and audio signals from other network devices are played.

In the first embodiment, referring back to FIG. 3, the built-in Ethernet/power line converter 34 includes an AC/DC rectifier (AC-to-DC regulator) 341, a signal converter (signal transformer) 342, an analog/digital signal converter (analog/digital signal converter) 343 and a power line network chip (powerline networking chip) 344 and other components, wherein the AC/DC rectifier 341 and the signal converter 342 are respectively connected to a power plug 37, to receive the power from the power outlet when the power plug 37 is plugged into an existing power outlet in the home or office; the AC/DC rectifier 341 converts the AC power from the power outlet into DC power , and provide each chip and component in the network digital image display 30 to enable it to operate normally; The /digital signal converter 343 converts the low-power analog signal into a digital signal, and converts it into a network packet via the power line network chip 344 , and transmits the network packet to the Ethernet physical layer chip 329 . In this way, when the power plug 37 is plugged into the existing power socket in the home or office, the network digital image display 30 can use the power line already laid in the home or office to connect with a network camera device. In this way, the network camera device in a certain room can transmit the extracted video and audio signals to the network digital video display 30 in other rooms through the power line, and through the network digital video display 30, the network The digital image and sound extracted by the camera device are played out, so that the plug-and-play environmental dynamic monitoring function can be successfully realized on the power socket without the need for additional network cables.

However, the present invention is not limited thereto. In the second embodiment of the present invention, as shown in FIG. 4, the network digital image display 38 includes an AC/DC rectifier 351, a digital audio-visual signal processor 320, a display panel 321, a digital/analog audio Controller 322, a speaker 323, a memory card plug interface 324, a button group 326, a memory 327, a TCP/IP chip 328 and an Ethernet physical layer chip 329 and other components, wherein one end of the AC/DC rectifier 351 A power plug 35 is provided to convert the AC power from the power plug 35 into DC power and provide it to other chips and components in the network digital video display 38; the digital audio-visual signal processor 320 receives the The digital image is displayed on the display panel 321, and after the received digital sound is processed, it is converted by the digital/analog sound controller 322 and played by the speaker 323; the memory card interface 324 provides A memory card is inserted so that the digital audio-visual signal processor 320 can read the digital image stored in it and display it on the display panel 321; connection, for the user to input operation instructions and temporarily store the instructions and data required for the operation of the digital video signal processor 320; the TCP/IP chip 328 is connected to the Ethernet physical layer chip 329 and the digital video signal processor 320 respectively Connected, so that the Ethernet physical layer chip 329 can be directly connected to the Internet or other network devices (such as: network routers) through an RJ-45 plug 381, and receive digital images and sounds from the Internet or other network devices The signal is sent to the digital audio-visual signal processor 320 via the TCP/IP chip 328 for playback. In the second embodiment shown in FIG. 4, the RJ-45 plug 381 is plugged into an external Ethernet/power line converter 39, and the external Ethernet/power line converter 39 includes an RJ- 45 socket 391, an AC/DC rectifier 341, a signal converter 342, an analog/digital signal converter 343 and a power line network chip 344 and other components, wherein the RJ-45 socket 391 is connected to the RJ-45 plug 381 , so that the network packet received by the external Ethernet/power line converter 39 from the power socket is sent to the network digital video display 38; the AC/DC rectifier 341 converts the AC power from the power socket into DC Power is provided to the power line network chip 344 for use; the signal converter 342 separates the low-power signal carried in the AC power, and converts the low-power analog signal into a digital signal through the analog/digital signal converter 343, After being converted into network packets by the power line network chip 344 , the network packets are sent to the Ethernet physical layer chip 329 through the RJ-45 socket 391 and the RJ-45 plug 381 . In this way, the network digital video display 38 receives the digital video and audio signals extracted by a network camera device in a certain room through the power line, and plays them out, realizing the plug-and-play environment dynamic monitoring function. What needs to be mentioned here is that, in the second embodiment of the present invention, please refer to Fig. 4 again, the AC/DC rectifier 351 and the power plug 35 can be omitted, and the RJ-45 socket can be used instead 391 provides the DC power generated by the AC/DC rectifier 341 to the network digital video display 38 .

The third embodiment of the present invention is to use the power line that has been laid in the home or office to connect the above-mentioned network digital image display and a network camera device to each other to form an image monitoring system, as shown in Figure 5. The system 10 includes a network camera 20 and a network digital video display 30, the network camera 20 and the network digital video display 30 respectively through a built-in Ethernet/power line converter 34 (as shown in Figure 3) Or the external Ethernet/power line converter 72 is plugged into the existing power socket 41 in the home or office, so as to use the power line 40 that has been laid out in the home or office to connect to each other, so that the network camera device 20 The extracted video and audio signals can be transmitted to the network digital video display 30 through the power line 40, and played out through the network digital video display 30. In this way, it can be successfully achieved without additional network lines. The plug-and-play image monitoring function is realized on the power socket 41 . At least one memory card insertion interface 324 (as shown in FIG. 4 ) provided by the network digital image display 30 can be used to read the memory card stored in the memory card 60 of a general digital camera when it is inserted into the power socket 41. The digital image can be displayed and used as an electronic photo frame to achieve the purpose of decorating the home space and beautifying the home environment. In addition, the system 10 also includes a network router 70, one end of the network router 70 is connected to the Internet 71, and the other end is plugged into the home or office through an external Ethernet/power line converter 72. On some power outlets 41, when the user is in an environment other than the home or office, he can still use the personal computer, through the Internet 71, through the network router 70, utilize the power line 40 that has been laid in the home or office, and The network camera device 20 is connected to each other to monitor the dynamics in the home or office, or to enable the network digital image display 30 to receive the digital audio-visual data stream transmitted from the Internet 71 through the network router 70 and play it out . In addition, the system 10 also includes a network digital video recorder (network digital video recoder) 50, which can directly access the Internet or other network devices (such as: network router), so that after the network digital image recording device 50 is connected to the network router 70, the network camera device 20 can pass through the network router 70 to transmit and store the extracted video and audio signals to The network digital video recording device 50 is saved for future reference.

In the foregoing third embodiment, please refer to Fig. 5 and shown in Fig. 6, this network camera device 20 comprises a camera module (camera module) 22 and a control module (control module) 24, and this camera module 22 is used for extracting Image and sound, and it is coded into the digital audio-visual data flow of predetermined format (such as: JPEG format), and this camera module 22 comprises an image extraction chip 221 (such as: CMOS camera chip), an image transcoding chip 222 (such as: MJPEG CODEC chip) and a dynamic random access memory (DRAM) 223 and other components, wherein the image extraction chip 221 converts the extracted image into a YUV signal format, and sends it to the image decoding chip 222 , it is encoded by the image decoding chip 222, encoded into a digital audio-visual data stream in a predetermined format (such as: JPEG format), and temporarily stored in the dynamic random access memory 223; the control module 24 is In order to carry out the initialization process (initialization) of internal registration (internal registries) to this image extraction chip 221, and the setting data (setting information) of the designated digital audio-visual data stream format are sent to this image decoding chip 222, and without Under the support of any computer operating system, directly complete the connection with the Internet, the control module 24 includes a microprocessor control unit (Microprocessor Control Unit, hereinafter referred to as MCU) chip 241, a random access memory 242, a TCP/IP Chip 243 and an Ethernet physical layer chip 244 and other components, wherein the random access memory 242 is used to temporarily store instructions and data required for the operation of the network camera device 20, and the MCU chip 241 is used to control the network camera The overall operation of the device 20, and after reading the digital audio-visual data stream in the dynamic random access memory 223, the digital audio-visual data stream is converted into network packets through the TCP/IP chip 243 and the Ethernet physical layer chip 244 in sequence , send out. What needs to be particularly mentioned here is that the TCP/IP chip 243 includes the transmission control communication protocol and the Internet communication protocol, so that the network camera 20 can directly pass through the Ethernet entity without the support of any computer operating system. The layer chip 244 is connected with the Internet or other network devices, and transmits the extracted digital audio-visual data stream.

Referring again to Fig. 5 and shown in Fig. 6, this network camera device 20 also includes a built-in Ethernet/power line converter 26, and this Ethernet/power line converter 26 includes an AC/DC rectifier 261, a signal converter 262, components such as an analog/digital signal converter 263 and a power line network chip 264, the AC/DC rectifier 261 and the signal converter 262 are respectively connected to a power plug 27, so that the power plug 27 is plugged into the home or When the existing power socket 41 in the office is on, it receives the AC power from the power socket 41, wherein the AC/DC rectifier 261 converts the AC power from the power socket 41 into DC power, and provides it to the network camera device Each chip and component in 20, make it can operate normally; This power line network chip 264 is connected with this Ethernet physical layer chip 244, receives the network packet that transmits by this Ethernet physical layer chip 244, and network packet After digital processing, it is sent to the analog/digital signal converter 263, the digital signal is converted into a low-power analog signal by the analog/digital signal converter 263, and then the low-power analog signal is repeated by the signal converter 262 Add or couple (coupling) to the AC power waveform, and transmit the low-power analog signal through the power line that has been laid in the home or office. In this way, when the power plug 27 is plugged into the existing power outlet 41 in the home or office, the network camera 20 can use the laid power line 40 to connect with the network digital video display 30 and the network router 70 respectively. online with each other.

The above description is only a specific embodiment of the present invention, however, the present invention is not limited thereto during actual implementation. In the fourth embodiment of the present invention, as shown in Fig. 5 and Fig. 7, the network camera device 28 includes a camera module 22, a control module 24 and an AC/DC rectifier 251, wherein the AC/DC rectifier One end of 251 is provided with a power plug 25, which is used to convert the AC power from the power plug 25 into DC power and provide it to the camera module 22 and the control module 24; the camera module 22 includes an image extraction chip 221, a Image decoding chip 222 and components such as a dynamic random access memory 223, wherein the image extraction chip 221 converts the extracted image into a YUV signal format, and transmits it to the image decoding chip 222, by The image decoding chip 222 encodes it, encodes it into a digital audio-visual data stream of a predetermined format, and temporarily stores it in the dynamic random access memory 223; the control module 24 includes an MCU chip 241, a random memory Components such as memory 242, a TCP/IP chip 243 and an Ethernet physical layer chip 244, wherein the random access memory 242 is used to temporarily store instructions and data required for the operation of the network camera device 28, and the MCU chip 241 is used to control the overall operation of the network camera device 28, and after reading the digital audio-visual data stream in the dynamic random access memory 223, pass through the TCP/IP chip 243 and the Ethernet physical layer chip 244 in sequence, The digital audio-visual data stream is converted into a network packet, and then sent out through a network plug connector 281 (such as an RJ-45 plug). In the fourth embodiment shown in FIG. 7, the network plug connector 281 is plugged into an external Ethernet/power line converter 29, and the Ethernet/power line converter 29 includes a network socket 291 ( Such as: RJ-45 socket), an AC/DC rectifier 261, a signal converter 262, an analog/digital signal converter 263 and a power line network chip 264 and other components, wherein the network socket 291 is connected to the network socket The connector 281 is connected to receive the network packet sent by the network camera 28. The AC/DC rectifier 261 converts the AC power from the power socket into DC power and provides it to the power line network chip 264 for use; the power line The network chip 264 is connected with the network socket 291 to receive the network packet, and after the network packet is digitized, the analog/digital signal converter 263 converts the digital signal into a low-power analog signal, and then The signal converter 262 superimposes or couples the low-power analog signal to the AC power waveform, and uses the power line 40 already laid in the home or office to transmit the low-power analog signal to the network digital video display 30 and The network router 70. What needs to be mentioned here is that, in the fourth embodiment of the present invention, please refer to Fig. 7 again, the AC/DC rectifier 251 and the power plug 25 can be omitted, and the RJ-45 socket can be used instead 291 provides the DC power generated by the AC/DC rectifier 261 to the network camera 28 .

In addition, it should be particularly mentioned that in the aforementioned embodiments, the network camera device is an independent device, however, the present invention is not limited to this in actual implementation, and the network camera device can also be integrated to lamps or other household appliances, so that when the lamps or the household appliances are plugged into the existing power outlets in the home or office, the network camera device can use the power lines that have been laid in the home or office to connect with the The network digital image display and the network router are connected to each other to realize the plug-and-play image monitoring function on the power socket.

The above description is only the best specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications that can be easily conceived by those skilled in the art within the field of the present invention are all may be covered by the patent scope of this application.

Claims (16)

1. A plug-and-play network digital video display, characterized in that the display comprises: An Ethernet physical layer chip for receiving network packets; A TCP/IP chip, connected with the Ethernet physical layer chip, is used to receive the network packet transmitted from the Ethernet physical layer chip, and process the network packet according to the transmission control communication protocol and the Internet communication protocol; A digital audio-visual signal processor, connected with the TCP/IP chip, used to receive the digital audio-visual data flow transmitted by the TCP/IP chip, and process it; A display panel, connected with the digital audio-visual signal processor, for displaying the received digital image; A digital/analog sound controller, connected to the digital audio-visual signal processor, is used to convert the received digital sound into an analog sound signal; A loudspeaker is connected with the digital/analog sound controller to play the received analog sound signal; a button group, connected with the digital audio-visual signal processor, for users to input operation instructions; and A memory, connected with the digital audio-visual signal processor, is used to temporarily store the instructions and data required for the operation of the digital audio-visual signal processor. 2. The network digital image display according to claim 1, further comprising a built-in Ethernet/power line converter, the built-in Ethernet/power line converter comprising: A power plug for plugging into an existing power socket in a home or office; An AC/DC rectifier, connected to the power plug, used to receive the AC power from the power plug, convert the AC power into DC power, and provide it to the chips and components in the network camera device; A signal converter, respectively connected to the power plug, used to receive the AC power from the power plug, and separate the low-power analog signal from the AC power; An analog/digital signal converter connected to the signal converter for receiving the low-power analog signal from the signal converter and converting the low-power analog signal into a digital signal; and A power line network chip is connected with the analog/digital signal converter to receive the digital signal from the analog/digital signal converter and convert the digital signal into network packets. 3. The network digital image display according to claim 1, wherein the display further comprises: A memory card insertion interface, connected with the digital audio-visual signal processor, for inserting a memory card, so that the digital audio-visual signal processor can read the digital image stored in the memory card, and display the digital image on the on the display panel. 4. A plug-and-play network digital video display, characterized in that the display includes: a network plug connector; An Ethernet physical layer chip, connected to the network plug, for receiving network packets from the network plug; A TCP/IP chip, connected with the Ethernet physical layer chip, is used to receive the network packet transmitted from the Ethernet physical layer chip, and process the network packet according to the transmission control communication protocol and the Internet communication protocol; A digital audio-visual signal processor, connected with the TCP/IP chip, used to receive the digital audio-visual data flow transmitted by the TCP/IP chip, and process it; a display panel, connected with the digital audio-visual signal processor, for displaying the received digital image; A digital/analog sound controller, connected to the digital audio-visual signal processor, is used to convert the received digital sound signal into an analog sound signal; A loudspeaker is connected with the digital/analog sound controller to play the received analog sound signal; A button group, connected with the digital audio-visual signal processor, for the user to input operation instructions; a memory, connected to the digital audio-visual signal processor, for temporarily storing instructions and data required for the operation of the digital audio-visual signal processor; and An AC/DC rectifier, one end of which is provided with a power plug, is used to convert the AC power from the power plug into DC power and provide it to the components. 5. The network digital image display as claimed in claim 4, wherein the display further comprises: A memory card insertion interface, connected with the digital audio-visual signal processor, for inserting a memory card, so that the digital audio-visual signal processor can read the digital image stored in the memory card, and display the digital image on the on the display panel. 6. A plug-and-play network digital image monitoring system, characterized in that the system includes: A network camera device, which can be directly connected to the Internet or other network devices without the support of any computer operating system; A network digital image display that can be directly connected to the Internet or other network devices without the support of any computer operating system; and The network camera device and the network digital image display are plugged into the existing power sockets in the home or office through a built-in or external Ethernet/power line converter respectively, and utilize the existing power socket in the home or office. The power lines are connected to each other, so that the image and sound signals extracted by the network camera device can be transmitted to the network digital video display through the power lines, and played out by the network digital video display. 7. The system according to claim 6, wherein the network camera device comprises: An image extraction chip for extracting images and converting the images into signals in YUV format; An image decoding chip, used to receive the signal from the image extraction chip, and encode the signal into a digital audio-visual data stream in a predetermined format; A dynamic random access memory, used to receive the digital audio-visual data stream transmitted from the image decoding chip, and temporarily store it; A microprocessor control unit chip, used to control the overall operation of the network camera device, and read digital video and audio data streams from the dynamic random access memory; A random access memory for temporarily storing instructions and data required for operation of the network camera device; A TCP/IP chip, used to receive the digital audio-visual data stream transmitted from the microprocessor control unit chip, and process the digital audio-visual data stream according to the transmission control communication protocol and the Internet communication protocol; and An Ethernet physical layer chip is used to receive data from the TCP/IP chip, convert the data into network packets, and send them out. 8. The system according to claim 7, wherein the network camera device further comprises a built-in Ethernet/power line converter, and the built-in Ethernet/power line converter comprises: A power plug for plugging into an existing power socket in a home or office; An AC/DC rectifier, connected to the power plug, used to receive the AC power from the power plug, convert the AC power into DC power, and provide it to the chips and components in the network camera device; A power line network chip, connected to the Ethernet physical layer chip, for receiving network packets transmitted from the Ethernet physical layer chip, and digitally processing the network packets; An analog/digital signal converter, connected to the power line network chip, is used to receive the digital signal transmitted by the power line network chip, and convert the digital signal into a low-power analog signal; and A signal converter, respectively connected with the analog/digital signal converter and the power plug, used to receive the low-power analog signal from the analog/digital signal converter, and superimpose or superimpose the low-power analog signal Coupled to the AC power waveform, transmitted through the power plug. 9. The system according to claim 6, wherein the network camera device comprises: An image extraction chip for extracting images and converting the images into signals in YUV format; An image decoding chip, used to receive the signal from the image extraction chip, and encode the signal into a digital audio-visual data stream in a predetermined format; A dynamic random access memory, used to receive the digital audio-visual data stream transmitted from the image decoding chip, and temporarily store it; A microprocessor control unit chip, used to control the overall operation of the network camera device, and read digital video and audio data streams from the dynamic random access memory; A random access memory for temporarily storing instructions and data required for operation of the network camera device; A TCP/IP chip, used to receive the digital audio-visual data stream transmitted from the microprocessor control unit chip, and process the digital audio-visual data stream according to the transmission control communication protocol and the Internet communication protocol; An Ethernet physical layer chip, used to receive data from the TCP/IP chip and convert the data into network packets; and A network plug connector is connected with the Ethernet physical layer chip and is used for sending out network packets. 10. The system according to claim 6, wherein the network digital video display comprises: An Ethernet physical layer chip for receiving network packets; A TCP/IP chip, connected with the Ethernet physical layer chip, is used to receive the network packet transmitted from the Ethernet physical layer chip, and process the network packet according to the transmission control communication protocol and the Internet communication protocol; A digital audio-visual signal processor, connected with the TCP/IP chip, used to receive the digital audio-visual data flow transmitted by the TCP/IP chip, and process it; a display panel, connected with the digital audio-visual signal processor, for displaying the received digital image; A digital/analog sound controller, connected to the digital audio-visual signal processor, is used to convert the received digital sound signal into an analog sound signal; A loudspeaker is connected with the digital/analog sound controller to play the received analog sound signal; a button group, connected with the digital audio-visual signal processor, for users to input operation instructions; and A memory, connected with the digital audio-visual signal processor, is used to temporarily store the instructions and data required for the operation of the digital audio-visual signal processor. 11. The system according to claim 10, wherein the network digital video display further comprises a built-in Ethernet/power line converter, and the built-in Ethernet/power line converter comprises: A power plug for plugging into an existing power socket in a home or office; An AC/DC rectifier, connected to the power plug, used to receive the AC power from the power plug, convert the AC power into DC power, and provide it to the chips and components in the network camera device; A signal converter, respectively connected to the power plug, used to receive the AC power from the power plug, and separate the low-power analog signal from the AC power; An analog/digital signal converter connected to the signal converter for receiving the low-power analog signal from the signal converter and converting the low-power analog signal into a digital signal; and A power line network chip is connected with the analog/digital signal converter to receive the digital signal from the analog/digital signal converter and convert the digital signal into network packets. 12. The system according to claim 6, wherein the network digital video display comprises: a network plug connector; An Ethernet physical layer chip, connected to the network plug, for receiving network packets from the network plug; A TCP/IP chip, connected with the Ethernet physical layer chip, is used to receive the network packet transmitted from the Ethernet physical layer chip, and process the network packet according to the transmission control communication protocol and the Internet communication protocol; A digital audio-visual signal processor, connected with the TCP/IP chip, used to receive the digital audio-visual data flow transmitted by the TCP/IP chip, and process it; A display panel, connected with the digital audio-visual signal processor, for displaying the received digital image; A digital/analog sound controller, connected to the digital audio-visual signal processor, is used to convert the received digital sound signal into an analog sound signal; A loudspeaker is connected with the digital/analog sound controller to play the received analog sound signal; a button group, connected with the digital audio-visual signal processor, for users to input operation instructions; and A memory, connected with the digital audio-visual signal processor, is used to temporarily store the instructions and data required for the operation of the digital audio-visual signal processor. 13. The system according to claim 9 or 12, further comprising an external Ethernet/power line converter, the external Ethernet/power line converter comprising: A power plug for plugging into an existing power socket in a home or office; An AC/DC rectifier, connected to the power plug, used to receive the AC power from the power plug, convert the AC power into DC power, and provide it to the chips and components in the network camera device; A signal converter, respectively connected to the power plug, used to receive the AC power from the power plug, and separate the low-power analog signal from the AC power; An analog/digital signal converter connected to the signal converter for receiving the low-power analog signal from the signal converter and converting the low-power analog signal into a digital signal; A power line network chip connected to the analog/digital signal converter for receiving digital signals from the analog/digital signal converter and converting the digital signals into network packets; and A network socket is respectively connected with the power line network chip and the network plug connector, and is used for transmitting the network packet from the power line network chip to the network plug connector. 14. The system according to claim 10 or 12, wherein the network digital image display further comprises: A memory card insertion interface, connected with the digital audio-visual signal processor, for inserting a memory card, so that the digital audio-visual signal processor can read the digital image stored in the memory card, and display the digital image on the on the display panel. 15. The system according to claim 6, further comprising a network router, one end of the network router is connected to the Internet, and the other end is plugged into the home through a power line/Ethernet converter. Or on the existing power outlet in the office, use the power line that has been laid in the home or office to connect with the network camera device and the network digital image display respectively. 16. The system according to claim 15, further comprising a network digital image recording device, which can be directly connected to the network router without the support of any computer operating system , so as to store the video and audio signals extracted by the network camera device through the network router.

Images