KR20170005542A

KR20170005542A - FAULT DIAGNOSSIS AND REPAIR APPARATUS OF HDbaseT NETWORK SYSTEM AND METHOD THEREOF

Info

Publication number: KR20170005542A
Application number: KR1020150095688A
Authority: KR
Inventors: 이상로
Original assignee: 주식회사 제이티
Priority date: 2015-07-06
Filing date: 2015-07-06
Publication date: 2017-01-16

Abstract

The present invention relates to a fault diagnosis and repair apparatus and method for an HDbaseT network system. A fault diagnosis and repair apparatus for an HDbaseT network system according to an embodiment of the present invention may comprise: a switch unit which receives an Ethernet signal; a combination unit which receives the Ethernet signal, input from the switch unit, and multimedia data, and which merges the Ethernet signal and the multimedia data together; a transmission unit which transmits data, output from the combination unit, to a reception unit; a control unit which receives the Ethernet signal input from the switch unit, which monitors the combination unit, which diagnoses whether a fault has occurred, and which generates a re-link command, a software reset command, or a hardware reset signal based on a result of the diagnosis; and a reset unit which receives a signal generated by the control unit, and which performs reset based on this received signal.

Description

[0001] FAST DIAGNOSIS AND REPAIR APPARATUS OF HDbaseT NETWORK SYSTEM AND METHOD THEREOF [0002]

The present invention relates to an apparatus and method for diagnosing and restoring faults in an HD base T network system.

The present invention relates to HD base T (High Definition Base) technology. In order to use a television (TV), a computer (PC), and an audio for use in a home or office, a large number of various cables must be used.

Some of the commonly used high definition (HD) transmission cable technologies have limited transmission speeds and limited transmission capacity. Therefore, there is a problem that the amount of content that is increasing day by day can not be processed at high speed. In addition, since the HD transmission technology does not support uncompressed video, it is difficult to connect each device even if the video devices are only a few meters apart, and HD multimedia integrated contents can not be provided in the entire house and / or office.

In addition, existing household appliances have complicated wiring and complicated appearance because HD TV cable, audio cable, video cable, internet LAN cable, and power supply line are all present separately.

One of the most used cables is High Definition Multimedia Interface (HDMI) cable. Since the HDMI cable uses the uncompressed transmission method, it is not necessary to incorporate a decoder or decoding software as a compression area. In addition, in the case of HDMI technology, it is possible to transmit a single cable using a format in which video, audio, and / or control signals are integrated into a single digital interface. Therefore, the conventional complicated audio / video (AV) There is an advantage of simplifying the connection wiring.

HD base T technology has been developed and used as a network structure for resolving the distance limitation of the HDMI standard.

However, the conventional HD base T network does not provide a remote management function.

The HDMI version does not support bidirectional audio / video streaming. On the other hand, ethernet networks are widely used in ubiquitous enterprises and residential markets. Although the current HD base T network utilizes Ethernet, it only provides limited management functions between the transmitting device and the receiving device of the HD base T network through its own on-band channel, but does not support remote management via the Internet. Therefore, there is a problem that it is difficult to diagnose and recover if a problem occurs in the network.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus and method capable of diagnosing and restoring an HD base T network through remote management via the Internet.

According to an aspect of the present invention, there is provided an apparatus for diagnosing and recovering a fault in an HD base T network system, comprising: a switch unit receiving an Ethernet signal; A combining unit for receiving and merging Ethernet signals and multimedia data input from the switch; A transmitting unit for transmitting data output from the combining unit to the receiving unit; A controller for receiving the Ethernet signal input from the switch to monitor the coupling unit, diagnosing whether a failure has occurred, and generating a re-link command, a software reset command, or a hardware reset signal according to a diagnosis result; And a reset unit that receives a signal generated by the control unit and performs a reset according to the received signal.

And an alarm unit for notifying the occurrence of the failure when the control unit is diagnosed that the failure has occurred.

The switch may be an L2 switch.

In the HD base T network system, at least one fault diagnosis and recovery apparatus is used in the HD base T network system. When a plurality of fault diagnosis and recovery apparatuses are used, the fault diagnosis and recovery apparatus operates as a master module that directly communicates with the Internet , And the remaining devices except the device operating as the master module can operate as a slave module communicating with the Internet via the master module.

In addition, a method for diagnosing a fault in an HD base T network system according to an embodiment of the present invention includes: diagnosing a fault in an HD base T network system; A step of notifying the occurrence of a failure if a failure occurs as a result of the diagnosis; Determining whether automatic recovery is possible; And executing auto-recovery by executing a re-link command, a software reset command, or a hardware reset command depending on the type of failure if automatic recovery is possible as a result of the determination.

And performing recovery by manual recovery if automatic recovery is not possible as a result of the determination.

The step of performing the automatic restoration includes: determining whether the line is unstable; Executing a software link that is determined to be unstable as a result of the determination; Judging whether or not the software has been restored by a software re-link command; Executing a software reset command if recovery is not performed; Determining whether a software reset command has been restored; And executing a hardware reset command if not recovered.

Determining a system instability when it is determined that the line is unstable as a result of the line instability determination; Executing a software reset command if it is determined that the system is unstable; Determining whether a software reset command has been restored; And executing a hardware reset command if not recovered.

And executing a hardware reset command if it is determined that the system instability is not the result of the system instability determination.

Wherein the manual recovery comprises: determining whether a remote command is available; And executing a software re-link, a software reset, or a hardware reset by a remote command if the remote command is possible.

According to the present invention, the failure can be diagnosed remotely in the HD base T network system, and self-recovery can be performed according to the diagnosis contents.

FIG. 1 shows a configuration diagram of an HD base T network system according to an embodiment of the present invention.
2 is a block diagram of an apparatus for diagnosing and recovering a fault in an HD base T network system according to an embodiment of the present invention.
3 is a flowchart illustrating a method of diagnosing and recovering a fault in an HD base T network system according to an embodiment of the present invention.
FIG. 4 shows a flowchart of the automatic restoration method of FIG. 3 of the present invention.
5 is a flowchart of the manual recovery method of FIG.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, embodiments of the present invention are not limited to the specific forms shown and are exaggerated for clarity. Although specific terms are used herein, It is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation of the scope of the appended claims.

The expression " and / or " is used herein to mean including at least one of the elements listed before and after. Also, the expression " coupled / connected " is used to mean either directly connected to another component or indirectly connected through another component. The singular forms herein include plural forms unless the context clearly dictates otherwise. Also, as used herein, "comprising" or "comprising" means to refer to the presence or addition of one or more other components, steps, operations and elements.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

FIG. 1 shows a configuration diagram of an HD base T network system according to an embodiment of the present invention.

1, a video source device 10 (e.g., a computer, XBOX, video server, etc.), network equipment 20 (e.g., hub, gateway) Display devices 50 and 50_1 connected to the HD base T receiving units 40 and 40_1 and notebooks 60 and 60_1 and 60_2 capable of remote control through an Internet connection ) Are shown in Fig.

Before explaining the detailed configuration of the present invention, the characteristics of the HD base T network and Ethernet will be briefly described.

The HD Bass T (HD base T) network provides a parallel network of real-time data streams and Ethernet data such as HDMI 1.4 streams, S / PDIF (Sony / Philips Digital Interconnect Format) streams and USB (Universal Serial Bus) streams, It aims to provide high-grade networking.

In addition, existing devices / interfaces such as HDMI, Ethernet, USB and S / PDIF (S / PDIF is a standard for transmitting digital audio signals and its origin is in AES / EBU) ), And to provide a network for supporting core network services to be developed in the future.

The HD base T link supports up to four unshielded twisted pair (UTP) / STP (shielded twisted pair) CAT5e / 6 / 6a cables with 100m, point-to-point (PTP) and two middle RJ45 connectors .

The downlink sub-link may support 8 Gbps, 500 Msymbols / sec, PAM 16 symbols, and the uplink sub link may support 300 Mbps, 25 Msymboles / sec, and PAM 16 symbol. It also supports bidirectional 200Mbps between USB 1.0 / 2.0, S / PDIF, IR (Infra-Red) and Universal Asynchronous Receiver / Transmitter (UART) and supports bidirectional Ethernet 100Mbps.

The HD base T can support multiple streams simultaneously on a single link and can support at least eight HDMI 1.4 downstream streams, twelve USB or S / PDIF bidirectional streams, eight IR and eight UART bidirectional streams.

An Ethernet signal and an HDMI signal are simultaneously input to the HD base T transmitting units 30 and 30_1 and transmitted to the HD base T receiving units 40 and 40_1 through a signal cable such as an optical cable or a LAN cable.

According to the HD base T network structure as described above, the Internet access is possible through the Ethernet service. Therefore, in the present invention, a module for network management is added to the HD base T transmitting unit 30 and the receiving unit 40, 40_1 and remotely managed by using the Internet and automatically diagnosed and recovered when a failure occurs Device.

A plurality of HD base T transmission units 30 and 30_1 and reception units 40 and 40_1 may be formed and a plurality of HD base T transmission units 30 and 30_1 and receiving units 40 and 40_1 may be formed and interconnected through an internal private network. That is, when a plurality of HD base T transmitters 30 and 30_1 and receivers 40 and 40_1 are used, networking is possible with a private network. At this time, any one of a plurality of transmitters and receivers is selected as a master module, The other transmitter and receiver are operated as slave modules. The master module performs Internet communication by directly communicating with the network devices 20, and the slave module performs Internet communication by communication relay of the master module.

In contrast, the Ethernet service (Ethernet service) is widely used because it is simple in configuration and can be provided at a low cost to subscribers because it does not require an additional device (modem) at the subscriber side unlike the existing ADSL or VDSL.

For remote management, each device is connected to the Internet gateway in the subnet. In order to access the private network through the Internet, port forwarding is set by using the management IP port number and the private IP address of the master module, and the slave module is automatically selected Interworking with the Internet through the master module.

The master module relays internet communication with the slave modules in the same subnet and is connected to the NAT router of the same subnet through the L2 management protocol.

The slave module communicates with the Internet via the master module of the same subnet.

FIG. 2 is a block diagram of an apparatus for diagnosing and recovering a fault in an HD base T network system according to an embodiment of the present invention, which corresponds to the HD base T transmitter 30 and the receiver 40 in FIG.

2, the fault diagnosis apparatus according to an embodiment of the present invention includes a transmitter 30 and a receiver 40. The transmitter 30 transmits an HDMI signal and an Ethernet signal, and the receiver 40 Receives the HDMI signal and the Ethernet signal transmitted from the transmitter 30, transmits the HDMI signal to the display device, and transmits the Ethernet signal to a control device such as a computer.

Since the structures of the transmitter 30 and the receiver 40 are the same, the description will be focused on the transmitter 30 and the description of the same structure of the receiver 40 will be omitted.

The transmission unit 30 includes a switch unit 31, a coupling unit 32, a transmission unit 33, a control unit 34, a reset unit 35, and an alarm unit 36.

The switch unit 31 receives the Ethernet signal and transmits the Ethernet signal to the combining unit 32 and the control unit 34, and an L2 switch can be used. The L2 switch separates the collision domain in order to minimize the collision caused by the Ethernet, and selectively separates the traffic into segments to have an effective bandwidth size. When a host linked to the L2 switch transmits a packet to the switch side, the L2 switch reads the source address of the packet and registers it in the MAC address table. When a packet is received at one port of the switch, The MAC address table is searched and the packet is switched to the corresponding port.

The combining unit 32 receives the HDMI signal and the Ethernet signal output from the switch unit 31 and combines the two signals.

The transmitting unit 33 transmits a signal output from the combining unit 32 to the receiving unit 40. As the transmission means, an optical cable 33a or a LAN cable 33b can be used. The transmission unit 33 preferably includes both an optical cable and an interface for transmitting a LAN cable.

The control unit 34 receives the Ethernet signal received from the switch unit 31 and monitors the network status of the device. The state of the switch unit 31 and the coupling unit 32 is monitored to diagnose whether a failure has occurred. That is, it provides a physical interface for main chip monitoring and control of the device, provides a physical interface for remote management, and provides a web user interface at the same time. It also provides a data interface for main chip monitoring and control of the device.

When the occurrence of the failure is detected, the control unit 34 notifies the occurrence of the failure and executes the automatic recovery according to the failure type. In the automatic recovery method, a re-link command is generated to retry the connection, and a software reset signal or a hardware reset signal is generated if the failure is not restored by the re-link. The failure notification method may notify an administrator through a text message (SMS, MMS), turn on a warning light such as an LED, or generate a warning sound such as a buzzer.

As shown in FIG. 1, in the network configuration, a plurality of the transmission unit 30 and the reception unit 40 are used, and the plurality of transmission units 30 and the reception unit 40 can constitute a private network. In this case, one of the plurality of transmitting units and the receiving unit operates as a master module, and the other operates as a slave module. The transmitting / receiving unit operating as the master module is connected to the network equipment in the same subnet and connected to the Internet, and is connected to the transmitting / receiving unit operating as another slave module so that the slave module can communicate with the Internet.

The reset unit 35 receives the reset signal output from the control unit 34 and resets software or hardware.

The alarm unit 36 may include a warning lamp such as an LED or a warning sound generating device such as a speaker. The alarm unit 36 generates a warning sound by a control signal to the control unit, thereby indicating that a fault has occurred, so that the manager can recognize the failure.

The receiving unit 40 is constituted by the same hardware of the transmitting unit 30. [ However, since they have different functions, they are the same hardware but perform different functions. For example, in the configuration corresponding to the transfer section 33, the separation section 42 is provided in the configuration corresponding to the receiving section 44 and the coupling section 32. They are different in name and function but can be configured with the same hardware.

3 is a flowchart illustrating a method of diagnosing and recovering a fault in an HD base T network system according to an embodiment of the present invention.

Referring to FIG. 3, the control unit 34 monitors the network status of the switch unit 31 and the coupling unit 32 and diagnoses whether there is a failure (S10). If the diagnosis results in a failure, the occurrence of the failure is notified (S20). As a notification method, a method of transmitting a text message or generating a warning light or a warning sound as described above may be used.

After the failure occurrence notification, the failure type is identified (S30). (S40) or manual recovery (S50) according to the type of failure.

FIG. 4 shows a flowchart of the automatic restoration method of FIG. 3 of the present invention.

Referring to FIG. 4, it is determined whether the line is unstable (S41). If it is determined that the line is unstable, an attempt is made to re-link the unstable line (S42). If it is determined that the line is unstable, it is determined whether the system is unstable (S43). For example, if the connection between the transmitter and the receiver is unstable, the re-link controller issues a re-link command to reconnect the transmitter and the receiver, and otherwise determines whether the system is unstable.

After the reconnection attempt, it is determined whether the failure has been restored (S44). As a result of the determination, if the failure is recovered, the recovery procedure is terminated, and if not, the software is reset (S45). After the software reset, it is determined whether or not the software is recovered (S46). It is determined that the failure has been restored and the recovery procedure is terminated. Otherwise, the hardware reset procedure is performed (S47).

That is, if the system instability is determined to be unstable or the software can not be recovered even after the software is finally determined, the hardware is reset (S45) and the recovery procedure is terminated. Resetting the hardware can be done by turning the hardware on and off.

5 is a flowchart of the manual recovery method of FIG.

If automatic recovery is not possible, the administrator who received the failure notification can recover the fault by remote command using the Internet.

In the failure recovery method, it is determined whether a remote command is available (S51). If a remote command is available, a software reset command S52, a software reset command S53, and a hardware reset command S54 are sequentially executed It can be recovered. If the failure can not be recovered even by the remote command, the site is directly checked and the failure is recovered (S55).

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

10: Video source 20: Network equipment
30, 30_1: transmitting unit 40, 40_1: receiving unit
50, 50_1: display device 60, 60_1, 60_2: notebook
31: switch unit 32:
33: Transmission unit 34:
35: reset section 36: alarm section

Claims

A fault diagnosis and recovery apparatus for an HD base T network system,
A switch unit for receiving an Ethernet signal;
A combining unit for receiving and merging Ethernet signals and multimedia data input from the switch;
A transmitting unit for transmitting data output from the combining unit to the receiving unit;
A controller for receiving the Ethernet signal input from the switch to monitor the coupling unit, diagnosing whether a failure has occurred, and generating a re-link command, a software reset command, or a hardware reset signal according to a diagnosis result; And
And a reset unit configured to receive a signal generated by the control unit and perform a reset according to the reset signal.

The method according to claim 1,
Further comprising an alarm unit for notifying the occurrence of a failure when the control unit is diagnosed that a failure has occurred.

3. The method of claim 2,
Wherein said switch is an L2 switch.

The method according to claim 2, wherein
The failure diagnosis and recovery apparatus of the HD base T network system is used in at least one or more of the HD base T network systems,
When a plurality of devices are used, any one of the fault diagnosis and recovery devices operates as a master module that directly communicates with the Internet, and the remaining devices except the device that operates as a master module operate as a slave module that communicates with the Internet through the master module Fault diagnosis and recovery device of HD base T network system.

Diagnosing a failure of the HD base T network system;
A step of notifying the occurrence of a failure if a failure occurs as a result of the diagnosis;
Determining whether automatic recovery is possible; And
And executing auto-recovery by executing a re-link command, a software reset command, or a hardware reset command depending on the type of the fault, if the automatic recovery is possible as a result of the determination.

6. The method of claim 5,
And performing recovery by manual recovery if automatic recovery is not possible as a result of the determination.

6. The method of claim 5,
Determining whether the line is unstable;
Executing a software link that is determined to be unstable as a result of the determination;
Judging whether or not the software has been restored by a software re-link command;
Executing a software reset command if recovery is not performed;
Determining whether a software reset command has been restored; And
And executing a hardware reset command if the recovery is not successful.

8. The method of claim 7,
Determining a system instability when it is determined that the line is unstable as a result of the line instability determination;
Executing a software reset command if it is determined that the system is unstable;
Determining whether a software reset command has been restored; And
And executing a hardware reset command if the recovery is not successful.

9. The method of claim 8,
And executing a hardware reset command when it is determined that the system is unstable as a result of the system instability determination.

The method according to claim 6,
Wherein the manual recovery comprises: determining whether a remote command is available; And
And performing a software re-link, a software reset, or a hardware reset by a remote command if the remote command is possible.