CN1625233A - Network multi-media TV. set based on UPNP protocol - Google Patents
Network multi-media TV. set based on UPNP protocol Download PDFInfo
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- CN1625233A CN1625233A CN 200310114424 CN200310114424A CN1625233A CN 1625233 A CN1625233 A CN 1625233A CN 200310114424 CN200310114424 CN 200310114424 CN 200310114424 A CN200310114424 A CN 200310114424A CN 1625233 A CN1625233 A CN 1625233A
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Abstract
The invention is a UPNP-based protocol network multimedia TV set, realizing the functions of automatic finding, announcing, information interchanging, and other operations, and providing the play control service function for network devices. The TV set supports wireless and wire network environments and supports VXWORKS operating system, and after transplanting TCP/IP, UDP, etc to the VXWORKS operating system, adds an 802.11 protocol applied wireless network interface on the basis of existing mainboard structure of the TV set. Correspondingly, it adds a UPNP protocol stack and an 802.11 wireless network card driving module in a network module. As a UPNP device, it can realize the functions of automatic issuing information and being called for service by the UPNP devices in other networks and it has higher playing quality.
Description
Technical field
The present invention relates to a kind of network multimedia television set, specifically based on the Web TV of UPNP interconnection protocol.
Background technology
Multimedia file in the present playing network environment in the family is to use the PC online to download or play immediately on the net by the user mostly.Because existing high quality display price is higher, it is relatively poor that result of broadcast compares to existing high definition TV, thereby use the home television set playing network media file to become the inexorable trend of network technical development.
Along with radio network technique, the particularly application of UPNP protocol technology, the equipment in the wireless network can realize a kind of automatic discovery, install and to be interconnected easily and the resource-sharing pattern, just progressively is applied based on the wireless device of UPNP protocol technology.
Existing radio network technique can satisfy the use multimedia TV set as player terminal, but existing multimedia TV set can't be realized automatic broadcast, how using other equipment to call multimedia TV set automatically in network environment, is the key technology problem that really realizes user's shared network resource, improves entertainment quality.
Summary of the invention
Network multimedia television set based on the UPNP agreement of the present invention can address the above problem, realize function with the operations such as automatic discovery, statement and information interaction of other LA Management Rooms based on the UPNP interconnection protocol, and provide the Play Control service function to the network equipment.
Purpose of the present invention mainly is application UPNP protocol technology, provides a kind of new-type network multimedia TV set in conjunction with the network transmission protocol and multimedia decoding The Application of Technology.
The UpnP agreement is a kind of application interconnection protocol of framework on ICP/IP protocol, can realize the function of the interoperability such as discovery, statement and information interaction of the network equipment.Network multimedia television set of the present invention, by use the UpnP agreement on network, issue the resource that can provide, wherein mainly comprise the Play Control service of AV, the control service of the Connection Service of AV and TV.
Described network multimedia television set, support wireless and cable network environment simultaneously, and support VXWORKS operating system, after transplanting network transmission protocol TCP/IP, UDP waited until VXWORKS operating system, addition had the radio network interface of using 802.11 agreements on original TV SKD architecture basics.
Correspondingly, addition has UPNP protocol stack and 802.11 wireless network card driver modules in mixed-media network modules mixed-media.
Transplant every network transmission protocol in VXWORKS operating system, wherein be fit to the UPnP protocol stack of VXWORKS system, its effect mainly is the realization television set is issued oneself on network service, intercepts network event, sends various service subscription information.
The network multimedia service of playing provides the various operations of network multimedia television set, mainly includes operational order such as broadcast, time-out and to the UPNP equipment send state variable incident of having subscribed to this service.
Web TV control service, the various operational processes of network multimedia television set itself are provided, mainly include the operational order of adjustings such as switch, channel selection, color and contrast and be equipment send state variable incident to subscribing to this service when state variable changes.
The multimedia processing module by the hardware decoding, converts the receptible audio/video flow of common TV to after receiving multi-medium data, deliver to the TV display module and go to show.
After described multimedia TV set added the UPNP protocol stack, the UPNP protocol stack just was used for multimedia TV set is issued as an equipment, enjoyed the media play service with other UPNP equipment on the informing network.When other equipment on the network will call media file on this this equipment of player plays, host-host protocol still adopted agreements such as HTTP, RTSP, RTP.
Network multimedia television set of the present invention mainly has the following advantages:
1, as UPNP equipment, can realize releasing news automatically and by the function of UPNP equipment calls service in other networks, thereby become the processing terminal of sharing in the network, need not the user and manually be provided with;
2, broadcast mode comprises wired and wireless two kinds, and realizes selecting automatically, and play quality is higher;
Description of drawings
Fig. 1 is the hardware block diagram of network multimedia television set of the present invention;
Fig. 2 is the system module schematic diagram of described network multimedia television set;
Fig. 3 is the mixed-media network modules mixed-media structural representation among Fig. 2;
Fig. 4 is that described network multimedia television set UPNP service function starts flow chart.
Embodiment
Network multimedia television set based on the UPNP agreement of the present invention, as shown in Figure 1, its hardware mainly includes: TV SKD 101 (comprising CPU, DSP, RAM/ROM), wired network interface parts 102, radio network interface 103, memory member (SDRAM chip 104, Flash chip 105), user interface logic circuit 106, remote control receiving-member 107, display unit 108, audio frequency inputoutput unit 109, video inputoutput unit 110.
As shown in Figure 2, the system module of described network multimedia television set mainly includes: power management module 201, main program module 202, mixed-media network modules mixed-media 203, Subscriber Interface Module SIM 204, CRT display module 205, infrared receiving module 206, video input/output module 207, audio frequency input/output module 208, data processing module 209.
Wherein, shown in the dotted portion among Fig. 3, mixed-media network modules mixed-media 203 mainly includes: UPNP protocol stack 302, TCP/IP and udp protocol stack 303,802.11 wireless network card driver modules 304, wired network adapter driver module 305.
Described network multimedia television set is supported wireless and cable network environment, and support VXWORKS operating system, after transplanting network transmission protocol TCP/IP, UDP waited until VXWORKS operating system, addition had the radio network interface 103 of using 802.11 agreements on original TV SKD architecture basics.
Correspondingly, addition has UPNP protocol stack 302 and 802.11 wireless network card driver modules 304 in mixed-media network modules mixed-media 203.
As shown in Figure 4, described network multimedia television set UPNP service procedure is:
The first step after system boot starts, starts service of UPNP netcast and television set control service;
In second step, the television set hardware testing detects television set and adopts wired or the wireless network connection;
If all be in effective status, then preferentially select wireless connections (401);
In the 3rd step, carry out system parameters initialization (402);
In the 4th step, UPnP protocol stack initialization (403) detects network interface card and whether sets the IP address; If do not have,
The IP address of this television set of Dynamic Host Configuration Protocol server application in network then;
If no available Dynamic Host Configuration Protocol server is then followed automatic IP agreement and generated an IP address automatically, detect regularly whether Dynamic Host Configuration Protocol server is arranged then;
When Dynamic Host Configuration Protocol server, obtain the effective I P address with application again and replace the address of original automatic generation.
The 5th step, registration UPNP root device, advertisement (comprising facility information and information on services) is found in issue on network.
In the 6th step, start television set control service routine;
For all UPNP equipment in the network provide the operation-interface of executable TV remote repertoire;
After receiving the instruction that other equipment operate television set, judge whether order is correct; If correct, then operate, and operating result is returned to the UPNP equipment that requires operation; If incorrect, then return error message to the UpnP equipment that requires to operate;
After receiving subscription information, respective service will produce a single subscription number.When the television set state variable changed, trigger event also sent to the state variable value that changes in other UPNP equipment of being scheduled to this service.
In the 7th step,, then start network multimedia and play service routine if any this multimedia TV set of other equipment calls.
Comprise all control commands processing on the multimedia player, multimedia broadcast, UPnP equipment is subscribed to and is handled UPnP event handling, event trigger, incident transmission etc.
Claims (2)
1, a kind of network multimedia television set based on the UPNP agreement, mainly include TV SKD, wired network interface parts, memory, user interface logic circuit, remote control receiving-member, display unit, audio frequency inputoutput unit and video inputoutput unit, it is characterized in that: addition has the radio network interface of using 802.11 agreements on TV SKD.
2, the network multimedia television set based on the UPNP agreement according to claim 1 is characterized in that: in the mixed-media network modules mixed-media of described system module, addition has UPNP protocol stack and 802.11 wireless network card driver modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310114424 CN1292587C (en) | 2003-12-05 | 2003-12-05 | Network multi-media TV. set based on UPNP protocol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310114424 CN1292587C (en) | 2003-12-05 | 2003-12-05 | Network multi-media TV. set based on UPNP protocol |
Publications (2)
| Publication Number | Publication Date |
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| CN1625233A true CN1625233A (en) | 2005-06-08 |
| CN1292587C CN1292587C (en) | 2006-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200310114424 Expired - Lifetime CN1292587C (en) | 2003-12-05 | 2003-12-05 | Network multi-media TV. set based on UPNP protocol |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160968B (en) * | 2005-11-24 | 2011-07-27 | 华为技术有限公司 | Network television service receiving system and method |
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2003
- 2003-12-05 CN CN 200310114424 patent/CN1292587C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160968B (en) * | 2005-11-24 | 2011-07-27 | 华为技术有限公司 | Network television service receiving system and method |
| CN101924913B (en) * | 2005-11-24 | 2012-12-12 | 华为技术有限公司 | Network television service receiving system and method |
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| Publication number | Publication date |
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| CN1292587C (en) | 2006-12-27 |
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