KR101741619B1 - Micro Renderer - Google Patents

Micro Renderer Download PDF

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Publication number
KR101741619B1
KR101741619B1 KR1020150120740A KR20150120740A KR101741619B1 KR 101741619 B1 KR101741619 B1 KR 101741619B1 KR 1020150120740 A KR1020150120740 A KR 1020150120740A KR 20150120740 A KR20150120740 A KR 20150120740A KR 101741619 B1 KR101741619 B1 KR 101741619B1
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KR
South Korea
Prior art keywords
processor
player
controller
media
request
Prior art date
Application number
KR1020150120740A
Other languages
Korean (ko)
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KR20170024992A (en
Inventor
윤정미
이상학
강석인
Original Assignee
전자부품연구원
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Priority to KR1020150120740A priority Critical patent/KR101741619B1/en
Publication of KR20170024992A publication Critical patent/KR20170024992A/en
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Publication of KR101741619B1 publication Critical patent/KR101741619B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/0816—Configuration setting characterised by the conditions triggering a change of settings the condition being an adaptation, e.g. in response to network events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
    • H04L41/0809—Plug-and-play configuration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
    • H04L41/0833—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability for reduction of network energy consumption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • Y02B60/34—

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer And Data Communications (AREA)

Abstract

A micro renderer is provided. According to an embodiment of the present invention, there is provided a media playback method including: receiving information from a controller by a micro renderer; The micro renderer communicating the media renderer information and the service information to the controller, and, if there is a playback request from the controller, the micro renderer delivering the playback request to the media renderer. Thereby, even when the media renderer enters the low power mode, the micro renderer which does not perform the media playback is operated, and the media can be reproduced at the request of the controller.

Description

Micro Renderer

The present invention relates to a communication system and method, and more particularly, to a communication system and method for standby mode support.

DLNA (Digital Living Network Alliance) is a group designed to provide an interoperability framework between home network devices. Products designed according to the DLNA guidelines can share media contents such as music, pictures, .

Currently, media devices that implement DLNA function do not have a way to reduce energy consumption. Therefore, it is requested to find a way to reduce the power consumption of the national energy consumption by enabling power saving in media sharing service, which is a core technology of the contents market.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a media renderer, in which a media renderer, .

According to an aspect of the present invention, there is provided a media playback method including: receiving a request for information from a controller; The processor transmitting regenerator information and the service information to the controller; And, if there is a playback request from the controller, transmitting the playback request to the player.

According to another aspect of the present invention, there is provided a media playback method, wherein the processor transmits a response to the playback request to the controller on behalf of the player.

In addition, the media playback method according to an embodiment of the present invention may further include, after the delivery step, stopping the network function by the processor.

And the processor may not process removal and modification of the device.

According to another aspect of the present invention, there is provided a media playback method including: multicasting an alive message; And re-multicasting the alive message to cause the processor to expire the time described in the specific field of the alive message.

And, only one of the player and the processor is active, and the player receives and plays media from the media server, and the processor does not perform the media playback function and may not communicate with the media server.

Further, the controller recognizes the player and the processor as one renderer, and the processor can use the same network interface and the same network address as the player.

According to another aspect of the present invention, there is provided a media renderer system including: a player for playing media; And a processor for communicating the regenerator information and the service information to the controller when there is an information request from the controller, and for transmitting the regenerating request to the regenerator when the regenerating request is received from the controller.

As described above, according to the embodiments of the present invention, even when the media renderer enters the low power mode, the micro renderer that does not perform media playback can be operated to play the media at the request of the controller.

In addition, according to the embodiments of the present invention, when not in use for reducing energy consumption, the apparatus automatically enters a low power mode, and upon a user's request, the apparatus enters the on mode (active mode) at a timely manner to enable media reproduction.

1 illustrates a media renderer system to which the present invention is applicable,
2 is a diagram illustrating the devices and their functions that make up the media renderer system,
3 is a diagram illustrating an operation process of the MR,
4 is a diagram showing the system specifications and requirements of the media renderer system,
FIG. 5 is a diagram showing the network functional requirements to be provided by the MR among the protocol stacks to be provided by the DMR.

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

1. Energy Reduction Media Renderer System

In the embodiment of the present invention, a function, a network interface, a message specification, and a protocol stack for implementing an energy-saving media renderer system equipped with a low-power communication interface for a standby are provided.

A media renderer system to which the present invention can be applied includes a home digital media renderer in which UPnP (Universal Plug and Play) / DLNA (Digital Living Network Alliance) is installed to enter an active standby mode And a 'low power device for continuous standby' for activating a service of a digital media renderer, and a 'low power device for a standby mode' is hereinafter referred to as a 'micro renderer'.

The micro renderer does not include a media playback function and is connected to a digital media controller in the home to maintain the status information of the media device.

FIG. 1 illustrates a media renderer system to which the present invention is applicable, and FIG. 2 illustrates devices and functions of a media renderer system.

1, the media renderer system includes a DMR (Digital Media Renderer) 110, an MR (Micro Renderer) 120, a DMC (Digital Media Controller) 130, and a DMS (Digital Media Server) 140 ).

The DMR 110 is a player that plays media. Upon receipt of a playback request from the DMC 130, the DMS 140 receives and plays the media. Media format supported by DLNA and media playback functions such as stop, fast forward and rewind are supported. On the other hand, if the functions of the media playback and the DMC 130 are all provided, the digital media player (DMP) is distinguished.

The DMC 130 holds a device configuration list of the home network and a media list stored in the DMS 140, and provides an interface through which the user can input playback information. When the user inputs and reproduces the media, the command is transmitted to the DMR 110. In case of mobile type, it can be classified into M-DMC (Mobile-DMC).

The DMS 140 is a device for storing and transmitting media contents. Provides the list of the corresponding media content to the DMC 130, and transmits the content stream to the DMR 110 during media playback.

The MR 120 is a low power small device operated when the DMR 110 enters the active standby mode and provides the device information of the DMR 110 to the DMC 130. When the DMC 130 requests the media playback, Lt; RTI ID = 0.0 > 110 < / RTI > It does not communicate with the DMS 140 because there is no media playback function.

Hereinafter, the roles and functions of the MR 120 will be described in more detail.

2. Role and function of MR (Micro Renderer)

The MR 120 is a device for minimizing power consumption of the DMR 110, which is a media playback apparatus of the DLNA. When the DMR 110 is switched to the standby mode to minimize power, the MR 120 is activated to take over the role of the DMR 110, and when the media play request is received from the DMC 130, And to activate it.

MR 120 is a low power device that replaces the role of DMR 110 in active standby mode. It should be recognized as one device that is not comprised of two separate devices in order to provide transparency to the DMC 130. [ Accordingly, the MR 120 provides a function of using the network interface of the DMR 110 and a function of communicating with the DMC 130. [

Only one of the DMR 110 and the MR 120 is activated. That is, when the DMR 110 is in the active mode, the MR 120 does not perform communication. Conversely, when the DMR 110 is in the active standby mode, the MR 120 is activated and maintains communication on the same LAN as the DMC 130. [

The operation of the MR 120 is divided into three steps as shown in FIG. 3, and communication is performed through the same interface as the DMR 110.

① Maintain DMR device status

The MR 120 maintains the device status of the DMR 110 using a Simple Service Description Protocol (SSDP) of UPnP and an HTTP GET. The UPnP SSDP will be described later in detail.

② Media playback request

The DMC 130 requests media playback using a Simple Object Access Protocol (SOAP) message of UPnP. The SOAP protocol will be described later in detail.

③ Wake-Up Interrupt

The MR 120 generates a Wake-Up interrupt for activating the DMR 110 upon receiving a media playback request. The interrupt is performed through the internal interface device.

3. System Specification and Requirements

FIG. 4 shows the specifications and requirements of the media renderer system. Two devices [DMR 110 and MR 120] should be recognized as one logical device by the DMC 130. [

Accordingly, the MR 120 maintains communication using the same network interface as the DMR 110, and provides transparency to the DMC 130 by using the same network address. That is, regardless of the presence or absence of the MR 120, the DMC 130 performs the same operation.

Also, the MR 120 uses the active standby mode interface of the DMR 110 for the wake-up interrupt, supports SSDP, SOAP, and HTTP as application protocols, and supports TCP, UDP (Multicast) over IPv4 do.

In addition, the MR 120 supports the same XML standard as the DMR 110 and is synchronized via the internal interface of the DMR 110.

4. Network Specifications

The MR 120 must provide a description of the DMR 110 and a service description to the DMC 130 during the active standby mode of the DMR 110. [ The protocol stack supports the standard of the UPnP Device Architecture 2.0, and the essential functions that the MR 120 must support are as follows.

4.1 UPnP protocol stack

FIG. 5 shows network function requirements of the MR 120 of the protocol stack to be provided by the DMR 110. FIG.

4.2 Required Function (Required)

4.2.1 Essential Functions for Maintaining Device Status

The MR 120 provides the DMC 130 with detailed information such as device description, network connection, and attributes of the DMR 110 during the active standby mode of the DMR 110. [ The application protocols used are SSDP, HTTP, and the transport and network layer protocols use UDP or TCP and IP.

4.2.1.1 SSDP Message Specification

The ssdp: alive message is delivered as an HTTP-compliant UDP multicast communication method. The multicast destination address and port number are fixed to 239.255.255.250:1900, and the ssdp: alive message is multicast at regular intervals. The CACHE-CONTROL field value must be set to 30 minutes (1800 seconds) or more before the expiration of the time specified in the CACHE-CONTROL field of the message.

Since the DMR 110 is operated during the active standby mode, the MR 120 does not directly perform the change or change of the device (ssdp: byebye, ssdp: update is included in the required function). The response to the M-SEARCH for searching for a specific device from the DMC 130 responds by the HTTP method.

4.2.1.2 HTTP message specification for detailed device / service description

After the DMC 130 collects the device information through the SSDP, the DMC 130 requests the device and the service-related detailed information through the HTTP GET method. The MR 120 responds to the HTTP and XML standard device information in response thereto.

It is necessary to provide Media Render, which is device information representing the DMR 110, and AV Transport, Connection Manager, and Rendering Control, which are service information (URL access is available). The service of the MR 120 is only required to be a Connection Manager, but all services must be defined in order to inform the DMC 130 of the function description of the DMR 110.

4.2.2 SOAP Message Specification for Media Request

The DMC 130 transmits a media playback request to the DMR 110 through a SOAP action. Since the MR 120 does not have a playback function, the SOAP is not an essential standard, but it is a standard that must be provided in order to determine the wake-up timing of the DMR 110. Upon receiving the SOAP message transmitted in the HTTP POST mode, the MR 120 delivers a wake-up message to the DMR 110, and the MR 120 stops the network function.

Since the response to the SOAP action must be made within 30 seconds, the MR 120 may instead perform a response to the action request for a quick response.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

110: DMR (Digital Media Renderer)
120: MR (Micro Renderer)
130: Digital Media Controller (DMC)
140: Digital Media Server (DMS)

Claims (8)

The processor receiving a request for device information from a controller;
The processor transmitting device information and service information of the player to the controller via HTTP; And
Activating the regenerator and delivering the regeneration request, if there is a regeneration request from the controller,
Wherein only one of the player and the processor is in an active state,
Wherein the device information includes device description information, network connection information, and attribute information of the player,
The service information includes: AV Transport, Connection Manager and Rendering Control,
The processor fails to perform a media playback function.
The controller requests media playback with a Simple Object Access Protocol (SOAP) message, the processor processes the SOAP to activate the player and deliver the response to the media playback request message to the controller within a specified time,
Wherein the processor is activated in a standby mode of the player to not perform removal or alteration of the peripheral device.
delete The method according to claim 1,
Further comprising: after the step of delivering the playback request, stopping the network function of the processor.
delete The method according to claim 1,
The processor multicasting an alive message; And
Further comprising multicasting the alive message before the processor expires a time written in a particular field of the alive message.
The method according to claim 1,
The player receives and plays media from a media server,
And does not communicate with the media server.
The method according to claim 1,
The controller includes:
Recognizes the player and the processor as one renderer,
The processor comprising:
The same network interface and the same network address as those of the player are used.
A player for playing media; And
And a processor for delivering device information and service information of the player to the controller when the device information request is received from the controller and activating the player if there is a request for playback from the controller and delivering the playback request,
Wherein only one of the player and the processor is in an active state,
The device information includes:
Device description information of the player, network connection information, and attribute information,
The service information includes: AV Transport, Connection Manager and Rendering Control,
The processor fails to perform a media playback function.
The controller requests media playback with a Simple Object Access Protocol (SOAP) message, the processor processes the SOAP to activate the player and deliver the response to the media playback request message to the controller within a specified time,
Wherein the processor is activated in a standby mode of the player to not perform removal or change of the peripheral device.

KR1020150120740A 2015-08-27 2015-08-27 Micro Renderer KR101741619B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150120740A KR101741619B1 (en) 2015-08-27 2015-08-27 Micro Renderer

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Application Number Priority Date Filing Date Title
KR1020150120740A KR101741619B1 (en) 2015-08-27 2015-08-27 Micro Renderer

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KR101741619B1 true KR101741619B1 (en) 2017-05-30

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Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
정보 가전 기기의 저전력 통신 기능 구현을 위한 프로토콜(TTAK.KO-04.0199), 한국정보통신기술협회, 2015년 6월*

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