CN103051951B - Television program switching method and television gateway - Google Patents
Television program switching method and television gateway Download PDFInfo
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- CN103051951B CN103051951B CN201110308468.3A CN201110308468A CN103051951B CN 103051951 B CN103051951 B CN 103051951B CN 201110308468 A CN201110308468 A CN 201110308468A CN 103051951 B CN103051951 B CN 103051951B
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Abstract
The invention provides a television program switching method and a television gateway. The television program switching method comprises the following steps of: receiving a television signal of a current receiving channel and carrying out demodulation to obtain television program data of the current receiving channel; receiving a television program data request of a client and determining a current requested program according to the television program data request; judging whether the current requested program belongs to the current receiving channel; if yes, acquiring first television program data corresponding to the current requested program from the television program data of the current receiving channel and providing the first television program data to the client; and if no, determining a requested channel which the current requested program belongs to, receiving a television signal of the requested channel, carrying out demodulation on the television signal of the requested channel to obtain television program data of the requested channel, acquiring second television program data corresponding to the current requested program from the television program data of the requested channel and providing the second television program data to the client. According to the invention, the client can conveniently watch television programs.
Description
Technical field
The present invention relates to digital TV technology, more particularly to a kind of TV program switching method and TV gateway.
Background technology
DTV is popularized in the whole world, and gradually replaces original simulated television, and radio and TV operator also provides more
Carry out more digital television broadcasting programs.And on the other hand, the electronics such as smart mobile phone, panel computer, high-definition network player sets
Standby (abbreviation client) is gradually popular, and these clients can provide Ethernet or WI-FI access functions, and support that multimedia is broadcast
Put, or even full HD video playback, but these clients do not possess the function of directly receiving digital television program.
The content of the invention
In view of this, the present invention provides a kind of TV program switching method and TV gateway so that client can be conveniently
Ground TV reception.
For solving the above problems, the present invention provides a kind of TV program switching method, comprises the following steps：
TV gateway receives the current TV signal for receiving channel, and the current TV signal for receiving channel is carried out
Demodulation, obtains the current television programme data for receiving channel；
The TV gateway receives the television programme data request of client, and true according to television programme data request
Settled front request program；
The TV gateway judges whether the current request program belongs to the current reception channel；
The TV gateway the current request program belong to it is described it is current reception channel when, from it is described it is current receive frequency
In the television programme data in road, corresponding first television programme data of the current request program is obtained, and it is electric by described first
The client is supplied to depending on program data；
The TV gateway is determined and described currently please when the current request program is not belonging to the current reception channel
The request channel belonging to program is sought, the TV signal of the request channel is received, and the TV signal to the request channel is entered
Row demodulation, obtains the television programme data of the request channel, from the television programme data of the request channel, obtains described
Corresponding second television programme data of current request program, and second television programme data is supplied to into the client.
Optionally, it is described to include the step of first television programme data is supplied to the client：
The TV gateway judges whether first television programme data is descrambled；
The TV gateway enters to first television programme data when first television programme data is not descrambled
Row descrambling, and by descrambling after the first television programme data be supplied to the client；
The TV gateway when first television programme data is descrambled, directly by the first TV Festival mesh number
According to being supplied to the client；
It is described to include the step of second television programme data is supplied to the client：
The TV gateway is descrambled to second television programme data, and by descrambling after the second TV Festival mesh number
According to being supplied to the client.
Optionally, the TV gateway receives the television programme data request of client, and according to the TV Festival mesh number
Also include before the step of determining current request program according to request：
The TV gateway stores a rendition list, described the rendition list include multiple TV programme and it is each described in
The corresponding program URL of TV programme；Described the rendition list is supplied to the client by the TV gateway；
The TV gateway receives the television programme data request of client, and true according to television programme data request
The step of settled front request program, includes：
The TV gateway receives the television programme data request of client, wraps in obtaining the television programme data request
The the first program URL for containing, the first program URL are that the client is obtained from described the rendition list；
The TV gateway is inquired about described the rendition list, determines the first program URL according to the first program URL
Corresponding current request program.
Optionally, the TV gateway receives the television programme data request of client, and according to the TV Festival mesh number
Also include before the step of determining current request program according to request：
The TV gateway stores a rendition list and UPNP the Resources lists, and described the rendition list includes multiple TVs
Program and the corresponding program URL of each TV programme, described UPNP the Resources lists include multiple ASX files and every
The corresponding file URL of ASX files described in, wherein, the ASX files are corresponded with the program URL, each ASX
Program URL described in one is included in file；
Described UPNP the Resources lists are supplied to the client by the TV gateway；
The TV gateway receives the ASX file downloads request that the client sends, and obtains in the download request
Comprising the first file URL；
The first file URL corresponding ASX files are supplied to the client by the TV gateway；
The TV gateway receives the television programme data request of client, and true according to television programme data request
The step of settled front request program, includes：
The TV gateway receives the television programme data request of client, wraps in obtaining the television programme data request
Containing the first program URL, the first program URL is that the client is obtained from ASX files；
The TV gateway inquires about described the rendition list according to the first program URL, determines first program URL pair
The current request program answered.
The present invention also provides a kind of TV gateway, including：
Demodulation receiver module, for receiving the current TV signal for receiving channel, and to the current electricity for receiving channel
It is demodulated depending on signal, obtains the current television programme data for receiving channel；
Link block, for being connected with client；
Processing module, the television programme data for obtaining the client are asked, and according to the television programme data
Request determines current request program, judges whether the current request program belongs to the current reception channel, if it is, from institute
State in the current television programme data for receiving channel, obtain corresponding first television programme data of the current request program, and
First television programme data is supplied to into the client；Otherwise, it determines the request frequency belonging to the current request program
Road, controls the TV signal that the demodulation receiver module receives the request channel, and the TV signal of the request channel is entered
Row demodulation, obtains the television programme data of the request channel, and from the television programme data of the request channel, obtains institute
Corresponding second television programme data of current request program is stated, and second television programme data is supplied to into the client
End.
Optionally, the TV gateway also includes：
Descrambling module；
The processing module includes：
Descrambling judge module, for judging whether first television programme data has been descrambled；
First control module, for when first television programme data is not descrambled, controlling the descrambling module pair
First television programme data is descrambled, and by descrambling after the first television programme data be supplied to the client；
First performing module, for when first television programme data is descrambled, directly by first TV
Program data is supplied to the client；
Second control module, descrambles to second television programme data for controlling the descrambling module；
Second performing module, is supplied to the client for the second television programme data after by descrambling.
Optionally, the TV gateway also includes：
First memory module, for storing a rendition list, described the rendition list includes multiple TV programme and every
The corresponding program URL of TV programme described in；
First provides module, for described the rendition list is supplied to the client；
The processing module includes：
First receiver module, the television programme data for receiving client are asked, and obtaining the television programme data please
The the first program URL included in asking, the first program URL are that the client is obtained from described the rendition list；
First enquiry module, for according to the first program URL, inquiring about described the rendition list, determining the first segment
The corresponding current request programs of mesh URL.
Optionally, the TV gateway also includes：
Second memory module, for storing a rendition list and UPNP the Resources lists, described the rendition list includes many
Individual TV programme and the corresponding program URL of each TV programme, described UPNP the Resources lists include multiple ASX files
And the corresponding file URL of each ASX files, wherein, the ASX files are corresponded with the program URL, Mei Yisuo
Program URL described in one is included in stating ASX files；
Second provides module, for described UPNP the Resources lists are supplied to the client；
Second receiver module, asks, and obtains the download to ask for receiving the ASX file downloads that the client sends
The the first file URL included in asking；
3rd provides module, for the first file URL corresponding ASX files are supplied to the client；
The processing module includes：
3rd receiver module, the television programme data for receiving client are asked, and obtaining the television programme data please
The first program URL is included in asking, and the first program URL is that the client is obtained from ASX files；
Second enquiry module, for inquiring about described the rendition list according to the first program URL, determines first program
The corresponding current request programs of URL.
The invention has the advantages that：
Being capable of easily TV reception by TV gateway client.
Client can pass through http protocol or UPNP agreements are communicated with TV gateway, so as to complete the switching of TV programme
And broadcasting.
Description of the drawings
Fig. 1 is a schematic flow sheet of the TV program switching method of the present invention；
Fig. 2 is another schematic flow sheet of the TV program switching method of the present invention；
Fig. 3 is the another schematic flow sheet of the TV program switching method of the present invention；
Fig. 4 is another schematic flow sheet of the TV program switching method of the present invention；
Fig. 5 is the structural representation of the TV gateway of the present invention；
Fig. 6 is a specific embodiment of the TV gateway of the present invention；
Fig. 7 is the flow chart of data processing figure of the TV gateway of the present invention；
Fig. 8 is the specific embodiment that the TV gateway of the present invention performs TV programme switching.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.
It is illustrated in figure 1 a schematic flow sheet of the TV program switching method of the present invention, the TV program switching method
Be applied in a TV gateway, the TV gateway is an independent physical equipment, with one or more clients (as computer,
Mobile phone, network player etc. can play TV programme TS stream electronic equipment) connection, the TV program switching method include with
Lower step：
Step 101, TV gateway receive the current TV signal for receiving channel, and to the current TV signal for receiving channel
It is demodulated, is currently received the television programme data of channel.
The television programme data is TS flow datas.
Step 102, TV gateway receive the television programme data request of client, and are asked according to the television programme data
Determine current request program.
Step 103, TV gateway judge whether the current request program belongs to current and receive channel, if it is, performing step
Rapid 104, otherwise, execution step 106.
Step 104, TV gateway obtain current request program corresponding from the current television programme data for receiving channel
First television programme data.
The current reception channel can correspond to one or more sets television programme datas, receive channel in this prior and only correspond to one
During set television programme data, then the set television programme data is corresponding first television programme data of current request program, at this
When current reception channel correspondence covers television programme data more, in addition it is also necessary to select current request from many set television programme datas
Corresponding first television programme data of program.
First television programme data is supplied to the client by step 105, TV gateway.
Step 106, TV gateway determine the request channel belonging to current request program.
Step 107, TV gateway receive the TV signal of the request channel, and the TV signal to the request channel is carried out
Demodulation, obtains the television programme data of the request channel；
Step 108, TV gateway obtain current request program corresponding the from the television programme data of the request channel
Two television programme datas；
Likewise, the request channel can correspond to one or more sets television programme datas, one is only corresponded in the request channel
During set television programme data, then the set television programme data is corresponding second television programme data of current request program, at this
When request channel correspondence covers television programme data more, in addition it is also necessary to select current request program from many set television programme datas
Corresponding second television programme data.
Second television programme data is supplied to the client by step 109, TV gateway.
The television programme data that TV gateway is received is probably scrambled television programme data, by TV Festival mesh number
According to before being supplied to client, in addition it is also necessary to which television programme data is descrambled.
It is illustrated in figure 2 another schematic flow sheet of the TV program switching method of the present invention, the TV programme switching side
Method is comprised the following steps：
Step 201, TV gateway receive the current TV signal for receiving channel, and to the current TV signal for receiving channel
It is demodulated, is currently received the television programme data of channel.
Step 201, TV gateway receive the television programme data request of client, and are asked according to the television programme data
Determine current request program.
Step 203, TV gateway judge whether the current request program belongs to current and receive channel, if it is, performing step
Rapid 204, otherwise, execution step 208.
Step 204, TV gateway obtain current request program corresponding from the current television programme data for receiving channel
First television programme data.
Step 205, TV gateway judge whether first television programme data is descrambled, if it is, execution step
207, otherwise execution step 206.
Step 206, TV gateway are descrambled to first television programme data.
Step 207, TV gateway by descrambling after the first television programme data be supplied to the client.
Step 208, TV gateway determine the request channel belonging to current request program；
Step 209, TV gateway receive the TV signal of the request channel, and the TV signal to the request channel is carried out
Demodulation, obtains the television programme data of the request channel；
Step 210, TV gateway obtain current request program corresponding the from the television programme data of the request channel
Two television programme datas；
Step 211, TV gateway are descrambled to second television programme data；
Step 212, TV gateway by descrambling after the second television programme data be supplied to the client.
A rendition list can be stored in the TV gateway of the embodiment of the present invention, and the rendition list includes multiple TV Festivals
Mesh and the corresponding program URL of each TV programme；The rendition list is formed in the following manner：TV gateway search is swept
Television network broadcast is retouched, all TV programme for searching are saved, and distribute one for each TV programme and predefined
Program URL, program URL is used for positioning the resource location of the program in a network.The rendition list is (comprising each TV Festival
The corresponding program URL of mesh) browser access, acquisition, or the WEB provided by TV gateway can be provided
SERVICE is obtained, so that client has in knowing TV gateway which TV programme can be used and each TV Festival
The corresponding program URL of mesh.
In synchronization, TV gateway can only receive a few set television programme datas in television network broadcast, more than institute
It is all non-existent (except working as to state the television programme data positioned by the corresponding program URL of the most TV programme in the rendition list
Outside the front a few set TV programme for being received).
When client goes to access a certain television programme data using a program URL, TV gateway receives program URL
Afterwards, judge whether the corresponding television programme datas of program URL are received, if the television programme data is not received,
I.e. the corresponding Internet resources of program URL are non-existent in fact, then TV gateway can be cut after program URL is received
Platform is operated.
Based on foregoing description, as shown in figure 3, the TV program switching method of the embodiment of the present invention is comprised the following steps：
Step 301, TV gateway store a rendition list, and the rendition list is supplied to client, the rendition list
Include multiple TV programme and the corresponding program URL of each TV programme.
The TV programme stored in the rendition list and the corresponding relation of program URL, it is as follows：
Program 1-URL1；
Program 2-URL2；
Program 3-URL3；
……
Step 302, TV gateway receive the current TV signal for receiving channel, and to the current TV signal for receiving channel
It is demodulated, is currently received the television programme data of channel.
Step 303, TV gateway receive the television programme data request of client, wrap in obtaining television programme data request
The the first program URL for containing, first program URL are that client is obtained from the rendition list for obtaining；
Step 304, TV gateway inquire about the rendition list, and whether be stored with judging the rendition list the first program URL,
If it is, execution step 305, otherwise terminates.
Step 305, TV gateway inquire about the rendition list according to first program URL, determine that the first program URL is corresponding and work as
Front request program.
Step 306, TV gateway judge whether the current request program belongs to current and receive channel, if it is, performing step
Rapid 307, otherwise, execution step 309；
Step 307, TV gateway obtain current request program corresponding from the current television programme data for receiving channel
First television programme data.
First television programme data is supplied to the client by step 308, TV gateway.
Step 309, TV gateway determine the request channel belonging to current request program；
Step 310, TV gateway receive the TV signal of the request channel, and the TV signal to the request channel is carried out
Demodulation, obtains the television programme data of the request channel；
Step 311, TV gateway obtain current request program corresponding the from the television programme data of the request channel
Two television programme datas；
Second television programme data is supplied to the client by step 312, TV gateway.
In above-described embodiment, if the first television programme data and the second television programme data are the TV Festival mesh numbers of scrambling
According to before the first television programme data or the second television programme data are supplied to client, in addition it is also necessary to carry out descrambling operation.
The TV gateway of the embodiment of the present invention can provide UPNP supports, and now, TV gateway can be referred to as UPNP and set
It is standby, support that the client of UPNP agreements can be referred to as UPNP control point.The effect of UPNP agreements is to allow the UPNP control point can
Available media resource on UPNP equipment, and UPNP equipment is found automatically.
A rendition list and UPNP the Resources lists can be stored in the TV gateway for supporting UPNP, wrapped in the rendition list
Include multiple TV programme and the corresponding program URL of each TV programme, the UPNP the Resources lists include multiple ASX files with
And every ASX files are corresponding file URL (i.e. the store path of ASX files), wherein, ASX files are the weights of a Streaming Media
Orientation file, ASX files are corresponded with program URL, save a program URL, each program URL in every ASX files
One TV programme of correspondence.
The UPNP the Resources lists are formed in the following manner：TV gateway search sweep television network broadcast, will search
Rope to all TV programme save, and distribute a predefined program URL for each TV programme, generate program row
Table, and corresponding ASX files are created for each TV programme in the rendition list, the TV programme are preserved in ASX files
Program URL.After the completion of the ASX document creations of all TV programme, TV gateway can scan the file path deposited by ASX files
(i.e. file URL), generates UPNP the Resources lists.
That is, supporting that UPNP the Resources lists that the client of UPNP agreements finds and obtains are one group of file in fact
URL, the resource that each file URL is pointed to is the ASX files being present on TV gateway.Client can be with by this document URL
ASX files are downloaded from TV gateway.
When TV gateway and client support UPNP agreements, as shown in figure 4, the TV programme of the embodiment of the present invention are cut
The method of changing is comprised the following steps：
Step 401, TV gateway store a rendition list and UPNP the Resources lists, and the UPNP the Resources lists are provided
To client, the rendition list includes multiple TV programme and the corresponding program URL of each TV programme, the UPNP resources
List includes multiple ASX files and the corresponding file URL of every ASX files, wherein, mono- a pair of ASX files and program URL
Should, a program URL is included in every ASX files.
Step 402, TV gateway receive the ASX file downloads request that client sends, and include in obtaining download request
The first file URL.
First file URL corresponding ASX files are supplied to client by step 403, TV gateway.
Step 404, TV gateway receive the current TV signal for receiving channel, and to the current TV signal for receiving channel
It is demodulated, is currently received the television programme data of channel.
Step 405, TV gateway receive the television programme data request of client, obtain in the television programme data request
Comprising the first program URL, first program URL is client to be obtained from the ASX files downloaded.
Step 406, TV gateway inquire about the rendition list according to the first program URL, determine that the first program URL is corresponding current
Request program.
Step 407, TV gateway judge whether the current request program belongs to current and receive channel, if it is, performing step
Rapid 408, otherwise, execution step 410.
Step 408, TV gateway obtain current request program corresponding from the current television programme data for receiving channel
First television programme data.
First television programme data is supplied to the client by step 409, TV gateway.
Step 410, TV gateway determine the request channel belonging to current request program.
Step 411, TV gateway receive the TV signal of the request channel, and the TV signal to the request channel is carried out
Demodulation, obtains the television programme data of the request channel.
Step 412, TV gateway obtain current request program corresponding the from the television programme data of the request channel
Two television programme datas.
Second television programme data is supplied to the client by step 413, TV gateway.
In above-described embodiment, if the first television programme data and the second television programme data are the TV Festival mesh numbers of scrambling
According to before the first television programme data or the second television programme data are supplied to client, in addition it is also necessary to carry out descrambling operation.
As shown in figure 5, the present invention also provides a kind of TV gateway, the TV gateway includes：
Demodulation receiver module 501, for receiving the current TV signal for receiving channel, and to the current TV for receiving channel
Signal is demodulated, and is currently received the television programme data of channel；
Link block 502, for being connected with client；
Processing module 503, the television programme data for receiving client are asked, and please according to the television programme data
Determination current request program is sought, judges whether the current request program belongs to the current reception channel, if it is, from described
In the current television programme data for receiving channel, corresponding first television programme data of the current request program is obtained, and will
First television programme data is supplied to the client；Otherwise, it determines the request channel belonging to the current request program,
The control demodulation receiver module 501 receives the TV signal of the request channel, and the TV signal of the request channel is entered
Row demodulation, obtains the television programme data of the request channel, and from the television programme data of the request channel, obtains institute
Corresponding second television programme data of current request program is stated, and second television programme data is supplied to into the client
End.
The television programme data that TV gateway is received is probably scrambled television programme data, by TV Festival mesh number
According to before being supplied to client, in addition it is also necessary to which television programme data is descrambled.
Based on foregoing description, the TV gateway can also include：Descrambling module, enters for the television programme data to scrambling
Row descrambling.The processing module 503 also includes：Descrambling judge module, for judge first television programme data whether by
Descrambling；First control module, for when first television programme data is not descrambled, controlling the descrambling module to described
First television programme data is descrambled, and by descrambling after the first television programme data be supplied to the client；First holds
Row module, for when first television programme data is descrambled, being directly supplied to first television programme data
The client；Second control module, descrambles to second television programme data for controlling the descrambling module；The
Two performing modules, are supplied to the client for the second television programme data after by descrambling.
A rendition list can be stored in the TV gateway of the embodiment of the present invention, and the rendition list includes multiple TV Festivals
Mesh and the corresponding program URL of each TV programme.The rendition list (comprising the corresponding program URL of each TV programme) can be with
Browser access, acquisition is used by the client, or the WEB SERVICE provided by TV gateway are obtained, so that client
End has in knowing TV gateway which TV programme can be used and the corresponding program URL of each TV programme.
When client can go to access a certain television programme data using a program URL, TV gateway receives the section
After mesh URL, current request program can be determined according to program URL.
Based on above description, the TV gateway of the embodiment of the present invention can also include：
First memory module, for storing a rendition list, described the rendition list includes multiple TV programme and every
The corresponding program URL of TV programme described in；
First provides module, for described the rendition list is supplied to the client；
The processing module includes：
First receiver module, the television programme data for receiving client are asked, and obtaining the television programme data please
The the first program URL included in asking, the first program URL are that the client is obtained from described the rendition list；
First enquiry module, for according to the first program URL, inquiring about described the rendition list, determining the first segment
The corresponding current request programs of mesh URL.
The TV gateway of the embodiment of the present invention can also support UPNP agreements, when TV gateway supports UPNP agreements, this
The TV gateway of inventive embodiments can also include：
Second memory module, for storing a rendition list and UPNP the Resources lists, described the rendition list includes many
Individual TV programme and the corresponding program URL of each TV programme, described UPNP the Resources lists include multiple ASX files
And the corresponding file URL of each ASX files, wherein, the ASX files are corresponded with the program URL, Mei Yisuo
Program URL described in one is included in stating ASX files；
Second provides module, for described UPNP the Resources lists are supplied to the client；
Second receiver module, asks, and obtains the download to ask for receiving the ASX file downloads that the client sends
The the first file URL included in asking；
3rd provides module, for the first file URL corresponding ASX files are supplied to the client；
The processing module includes：
3rd receiver module, the television programme data for receiving client are asked, and obtaining the television programme data please
The first program URL is included in asking, and the first program URL is that the client is obtained from ASX files；
Second enquiry module, for inquiring about described the rendition list according to the first program URL, determines first program
The corresponding current request programs of URL.
A specific embodiment of the TV gateway of the present invention is illustrated in figure 6, the TV gateway includes：Frequency modulator
And demodulator (DEMODULATOR), processor (MAIN CPU), DVB-CI (Digital Video Broadcast (TUNER)
Common Interface, DVB common interface) interface, wireless link block (such as wireless WIFI network interface cards or soft AP)
Or wired connection module (such as Ethernet link block) is constituted, the demodulation that the frequency modulator and demodulator are performed in above-described embodiment connects
The function that module is performed is received, wireless link block or wired connection module perform the work(that the link block in above-described embodiment is performed
Can, the function that processing module in computing device above-described embodiment is performed, DVB-CI interfaces for being connected with CAM cards, CAM
Block the function for performing the execution of the descrambling module in embodiment.
The course of work of above-mentioned each functional module is as follows：
Frequency modulator and demodulator receive radio frequency (RF) signal of DVB networks, i.e. TV signal in above-described embodiment, and right
RF signals are demodulated, and obtain TS streams, and TS streams are the television programme data in above-described embodiment.Can include in TS stream it is a set of or
Many set television programme datas, are possible to partly or entirely encrypted in these television programme datas, if TS streams are the TS of encryption
Stream, frequency modulator and demodulator need for TS streams to be sent to CAM cards, if it is not the TS streams of encryption, frequency modulator and demodulator that TS flows
TS streams are sent to into processor directly；
CAM cards are for descrambling to TS streams, and the TS streams after descrambling are sent to processor；
TS streams are sent to client by wireless link block or wired connection module by processor.
As shown in fig. 6, TV gateway directly can be connected with client, it is also possible to a router in by Ethernet with
Client connects.
It is the flow chart of data processing figure of the TV gateway of the embodiment of the present invention as shown in Figure 7, the TV gateway mainly includes
Two functional modules：Stream distribution module and UPNP/DLNA (Digital Living Network Alliance) server mould
Block.
Stream distribution module is responsible for the search of TV programme, scans the broadcast singal in DVB networks, forms a rendition list,
The TV programme that are stored with the rendition list and program URL corresponding relation (such as the program 1-URL1 in Fig. 7, program 2-URL2,
Program 3-URL3 ...).The rendition list can be supplied to client by WEBSERVER modules by stream distribution module.Client
After obtaining the rendition list, you can in the rendition list, select TV programme interested to be watched.
Stream distribution module can also carry out File Mapping to the rendition list, and the rendition list is mapped to ASX files (such as Fig. 7
In ASX files 1, ASX files 2, ASX files 3 ... one of ASX files one TV programme of correspondence), and generate and include
UPNP the Resources lists of multiple ASX files and the corresponding file URL of the ASX files, the UPNP control point (visitor in UPNP networks
Family end) it can be found that the Resources list.
Stream distribution module is also responsible for the process of television programme data and the switching of TV programme, is received simultaneously by DVB channels
Demodulation RF signals, are generated TS streams, and TS are descrambled by descrambling module, the TS streams after being descrambled, the TS streams after descrambling
In many set television programme datas for including (as the program data m in Fig. 7 ..., program data n) can be separated simultaneously one by one
It is input to streaming server.
Streaming server is responsible for the distribution of data and the connection with client, will often cover TV programme and be converted into meeting HTTP
The network multimedia crossfire (such as the program m-URLm in Fig. 7 ... program n-URLn) of agreement, the corresponding string of each TV programme
The unique program URL of stream distribution.Client is saved using broadcasting program broadcast correspondence in the software of support HTTP Online Video broadcastings
Mesh URL can watch corresponding TV programme.
The TV gateway for being illustrated in figure 8 the embodiment of the present invention performs a specific embodiment of TV programme switching.The electricity
View is closed includes that ((correspondence letter is arrived two demodulation receiver modules for corresponding reception channel x (respective channels 1) and reception channel y respectively
2)) and two descrambling modules (CAM1 and CAM2).Be stored with TV gateway the rendition list, and the rendition list includes TV programme
1～n.
Assume that TV programme 4～8 are received by channel 1, wherein TV programme 4,5 have been descrambled module descrambling, electricity
Depending on program 6,7,8 still in encrypted state；TV programme 11～15 are received by channel 2, wherein TV programme 11 by
Descrambling module descrambles, and TV programme 12～15 are still in encrypted state.The current TV programme that program stream service is being provided
Have 4,5,11.
If client requirements play TV programme 4,5,11, streaming server need not adjust demodulation descrambling, can be straight
The corresponding program stream service of offer is provided.
If client requirements play TV programme 6～8,12～15, streaming server need not adjust demodulation and receive mould
Block, but need to abandon a set of in descrambled program 4,5,11, then the program that descrambling active client request is played.
If client request plays TV programme 1～3,9～10,16～n, streaming server need using channel 1 or
Channel 2 goes to receive the reception channel described in current request broadcasting program, and the program that request is played is descrambled, then to visitor
Family end provides the stream service of the program.
If the television programme data request that streaming server is received is a random request, the program included in which
The corresponding stream service URL of URL and 1～n of program are mismatched, then streaming server is left intact, and directly refuses the request.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of TV program switching method, it is characterised in that comprise the following steps：
TV gateway receives the current TV signal for receiving channel, and the current TV signal for receiving channel is solved
Adjust, obtain the current television programme data for receiving channel；
The TV gateway receives the television programme data request of client, and is worked as according to television programme data request determination
Front request program；
The TV gateway judges whether the current request program belongs to the current reception channel；
The TV gateway current receives channel when the current request program belongs to the current reception channel from described
In television programme data, corresponding first television programme data of the current request program is obtained, and by first TV Festival
Mesh number evidence is supplied to the client；
The TV gateway determines the current request section when the current request program is not belonging to the current reception channel
Request channel belonging to mesh, receives the TV signal of the request channel, and the TV signal to the request channel is solved
Adjust, obtain the television programme data of the request channel, from the television programme data of the request channel, obtain described current
Corresponding second television programme data of request program, and second television programme data is supplied to into the client；
Wherein, the TV gateway receives the television programme data request of client, and is asked according to the television programme data
Also include before the step of determining current request program：
The TV gateway stores a rendition list and UPNP the Resources lists, and described the rendition list includes multiple TV programme
And the corresponding program URL of each TV programme, described UPNP the Resources lists include multiple ASX files and each institute
The corresponding file URL of ASX files is stated, wherein, the ASX files are corresponded with the program URL, each ASX files
In include program URL described in；
Described UPNP the Resources lists are supplied to the client by the TV gateway；
The TV gateway receives the ASX file downloads request that the client sends, and includes in obtaining the download request
The first file URL；
The first file URL corresponding ASX files are supplied to the client by the TV gateway；
The TV gateway receives the television programme data request of client, and is worked as according to television programme data request determination
The step of front request program, includes：
The TV gateway receives the television programme data request of client, obtains in the television programme data request comprising the
One program URL, the first program URL are that the client is obtained from ASX files；
The TV gateway inquires about described the rendition list according to the first program URL, determines that the first program URL is corresponding
Current request program.
2. TV program switching method as claimed in claim 1, it is characterised in that：
It is described to include the step of first television programme data is supplied to the client：
The TV gateway judges whether first television programme data is descrambled；
The TV gateway is solved to first television programme data when first television programme data is not descrambled
Disturb, and by descrambling after the first television programme data be supplied to the client；
First television programme data is directly carried by the TV gateway when first television programme data is descrambled
Supply the client；
It is described to include the step of second television programme data is supplied to the client：
The TV gateway is descrambled to second television programme data, and by descrambling after the second television programme data carry
Supply the client.
3. a kind of TV gateway, it is characterised in that include：
Demodulation receiver module, for receiving the current TV signal for receiving channel, and to the current TV letter for receiving channel
Number it is demodulated, obtains the current television programme data for receiving channel；
Link block, for being connected with client；
Processing module, the television programme data for obtaining the client are asked, and are asked according to the television programme data
Determine current request program, judge whether the current request program belongs to the current reception channel, if it is, working as from described
In the front television programme data for receiving channel, corresponding first television programme data of the current request program is obtained, and by institute
State the first television programme data and be supplied to the client；Otherwise, it determines the request channel belonging to the current request program, control
The system demodulation receiver module receives the TV signal of the request channel, and the TV signal of the request channel is solved
Adjust, obtain the television programme data of the request channel, and from the television programme data of the request channel, obtain described working as
Corresponding second television programme data of front request program, and second television programme data is supplied to into the client；
The TV gateway also includes：
Second memory module, for storing a rendition list and UPNP the Resources lists, described the rendition list includes multiple electricity
Depending on program and the corresponding program URL of each TV programme, described UPNP the Resources lists include multiple ASX files and
The corresponding file URL of each ASX files, wherein, the ASX files are corresponded with the program URL, each described
Program URL described in one is included in ASX files；
Second provides module, for described UPNP the Resources lists are supplied to the client；
Second receiver module, for receiving the ASX file downloads request that the client sends, and obtains in the download request
Comprising the first file URL；
3rd provides module, for the first file URL corresponding ASX files are supplied to the client；
The processing module includes：
3rd receiver module, the television programme data for receiving client are asked, and are obtained in the television programme data request
Comprising the first program URL, the first program URL is that the client is obtained from ASX files；
Second enquiry module, for inquiring about described the rendition list according to the first program URL, determines the first program URL
Corresponding current request program.
4. TV gateway as claimed in claim 3, it is characterised in that also include：
Descrambling module；
The processing module includes：
Descrambling judge module, for judging whether first television programme data has been descrambled；
First control module, for when first television programme data is not descrambled, controlling the descrambling module to described
First television programme data is descrambled, and by descrambling after the first television programme data be supplied to the client；
First performing module, for when first television programme data is descrambled, directly by first TV programme
Data are supplied to the client；
Second control module, descrambles to second television programme data for controlling the descrambling module；
Second performing module, is supplied to the client for the second television programme data after by descrambling.
5. TV gateway as claimed in claim 3, it is characterised in that also include：
First memory module, for storing a rendition list, described the rendition list includes multiple TV programme and each institute
State the corresponding program URL of TV programme；
First provides module, for described the rendition list is supplied to the client；
The processing module includes：
First receiver module, the television programme data for receiving client are asked, and are obtained in the television programme data request
Comprising the first program URL, the first program URL is that the client is obtained from described the rendition list；
First enquiry module, for according to the first program URL, inquiring about described the rendition list, determining the first program URL
Corresponding current request program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110308468.3A CN103051951B (en) | 2011-10-12 | 2011-10-12 | Television program switching method and television gateway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110308468.3A CN103051951B (en) | 2011-10-12 | 2011-10-12 | Television program switching method and television gateway |
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| CN103051951A CN103051951A (en) | 2013-04-17 |
| CN103051951B true CN103051951B (en) | 2017-03-22 |
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| CN201110308468.3A Expired - Fee Related CN103051951B (en) | 2011-10-12 | 2011-10-12 | Television program switching method and television gateway |
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| CN102957973A (en) * | 2011-08-26 | 2013-03-06 | 北京国微集成技术有限公司 | Television gateway device, television data processing system and television data processing method |
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| CN101106473A (en) * | 2006-07-14 | 2008-01-16 | 株式会社日立制作所 | Receiving system or terminal for contents via ip network |
| CN101779456A (en) * | 2007-08-08 | 2010-07-14 | 汤姆逊许可证公司 | Method and apparatus for monitoring program availability |
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| CN103051951A (en) | 2013-04-17 |
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