CN103414938A - Method for controlling internal communication of digital television all-in-one machine and digital television all-in-one machine - Google Patents
Method for controlling internal communication of digital television all-in-one machine and digital television all-in-one machine Download PDFInfo
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Abstract
The invention discloses a method for controlling internal communication of a digital television all-in-one machine and the digital television all-in-one machine. The method includes the steps that a first monitoring module of a host records the input data amount and the output data amount corresponding to each caching unit of the first caching module of the host and determines the use state of the corresponding caching unit of the first caching module according to the relationship between the size of the recorded input data amount and the size of the recorded output data amount, a first determination module of a CAM card determines the caching unit which can receive data in the first caching module according to the use state which is received from the host and generated by the first monitoring module, and a first receiving and sending module of the CAM card sends request data to the host and enables the request data to be stored in the determined caching unit of the first caching module, wherein the first caching module comprises at least three caching units. According to the method for controlling the internal communication of the digital television all-in-one machine, by increasing the caching space of the host, the data throughout is improved, the use state of the caching space of the host is timely monitored, the waiting time consumed in the data interactive process between the host and the CAM card is shortened, and the interaction rate is improved.
Description
Technical field
The present invention relates to the digital TV integrated machine field, specially refer to a kind of control method and digital TV integrated machine of digital TV integrated machine internal communication.
Background technology
Along with the continuous progress of science and technology, people also more and more are not content with unidirectional broadcast digital TV pattern, and urgent hope can have a kind of better approach to obtain abundanter information.To this, the various places radio and TV operator has released VOD(video on demand, video request program one after another) etc. the autonomous stronger two-way services of selectivity.Digital TV integrated machine is as the tv product of main flow on market, in the two-way services reciprocal process of the Operation Server with the radio and TV operator, the main frame of digital TV integrated machine is by low-speed communication resource LSC(low speed communication) and CAM(Conditional Access Module, Conditional Access Module) card is mutual, meets the CAM cartoon and crosses the communication resource that main frame has and the mutual demand of external resource.Communication mode between existing CAM card and main frame is: CAM card and main frame arrange respectively the spatial cache that is less than 254 Bytes, to meet the buffer size of the data interaction in communication process, for example, between the first spatial cache in the CAM card and the second spatial cache of main frame, there is the contraposition of data interaction, when the CAM calorie requirement sent to main frame by data to be sent, it can be sent to the second spatial cache by data to be sent via the first spatial cache.Yet, the defect of this existing low-speed communication mode is: easily between CAM card and main frame, produce data obstruction or data interaction and wait for, for example, when the first spatial cache carries out the first data interaction with the second spatial cache, this first spatial cache and the second spatial cache can not carry out the mutual of the second data, obstruction and the wait that can produce like this data.
Summary of the invention
Control method and the digital TV integrated machine of main purpose of the present invention for a kind of digital TV integrated machine internal communication is provided, aim to provide a kind of by the spatial cache and then the raising data throughout that expand digital TV integrated machine, and the spatial cache of immediately monitoring main frame is used state, reduce the stand-by period in main frame and CAM card data exchange process, improve rate of interaction.
The invention provides a kind of control method of digital TV integrated machine internal communication, the method is applicable to comprise that main frame reaches the digital TV integrated machine of the CAM card be connected with described main frame, and the method comprises the following steps:
The first monitoring module of described main frame records corresponding input data volume and the output data quantity of each buffer unit of the first cache module of described main frame, and according to the magnitude relationship of the input data volume recorded and output data quantity, determines the use state of the buffer unit of corresponding described the first cache module; Described the first cache module comprises at least three buffer units;
The first determination module of described CAM card determines that according to the use state that described the first monitoring module received from described main frame produces described the first cache module can receive the buffer unit of data;
The first transceiver module of described CAM card sends request data to main frame, and is stored in the buffer unit of definite described the first cache module.
Preferably, described CAM card sends request data to main frame, and after being stored in the step of buffer unit of definite described the first cache module, the method also comprises:
Described main frame sends to multimedia server by communication module by the request msg that the first cache module receives; And
Described main frame receives by described communication module the response data that described multimedia server returns.
Preferably, after described main frame received the step of the response data that described multimedia server returns by described communication module, the method also comprised:
The second monitoring module of described CAM card is determined the use state of each buffer unit of the second cache module of described CAM card, and the use state of each buffer unit of the second cache module of the described CAM card that will determine sends to described main frame; Described the second cache module comprises at least three buffer units;
The second determination module of described main frame determines that according to the use state that described the second monitoring module of receiving from described CAM clamping produces described the second cache module can receive the buffer unit of data;
The response data that the second transceiver module of described main frame receives described communication module sends to the buffer unit of definite described the second cache module.
Preferably, the second monitoring module of described CAM card determines that the step of use state of each buffer unit of the second cache module of described CAM card comprises:
The second monitoring module of described CAM card records corresponding input data volume and the output data quantity of each buffer unit of the second cache module of described CAM card; And
According to the magnitude relationship of the input data volume recorded and output data quantity, determine the use state of the buffer unit of corresponding described the second cache module.
Preferably, before the first monitoring module of described main frame recorded the step of input data volume that each buffer unit of the first cache module of described main frame is corresponding and output data quantity, the method also comprised:
The second transceiver module of described main frame receives the session request that described CAM card sends, and according to described session request, described main frame and described CAM card is set up to session connection and according to described session request, described main frame and multimedia server set up to network and be connected.
The present invention also provides a kind of digital TV integrated machine, and this digital TV integrated machine comprises main frame and the CAM card be connected with described main frame, wherein:
Described main frame comprises:
The first cache module, for the data that buffer memory is received from described CAM clamping, described the first cache module comprises at least three buffer units;
The first monitoring module, for recording corresponding input data volume and the output data quantity of each buffer unit of described the first cache module, and according to the magnitude relationship of the input data volume recorded and output data quantity, determine the use state of the buffer unit of corresponding described the first cache module;
Described CAM card comprises:
The first determination module, determine that for the use state that described the first monitoring module according to receiving from described main frame produces described the first cache module can receive the buffer unit of data;
The first transceiver module, be used to sending request data to main frame, and be stored in the buffer unit of definite described the first cache module.
Preferably, described main frame also comprises:
Communication module, send to multimedia server for the request msg that described the first cache module is received, and receive the response data that described multimedia server returns.
Preferably, described CAM card also comprises the second cache module and the second monitoring module; Described the second cache module, for the data that buffer memory receives from described main frame, described the second cache module comprises at least three buffer units; Described the second monitoring module, for the use state of each buffer unit of the second cache module of determining described CAM card, and the use state of each buffer unit of the second cache module of the described CAM card that will determine sends to described main frame;
Described main frame comprises:
The second determination module, determine that for the use state that described the second monitoring module according to receiving from described CAM clamping produces described the second cache module can receive the buffer unit of data;
The second transceiver module, for sending to by the response data that communication module receives from multimedia server the buffer unit of definite described the second cache module.
Preferably, described the second monitoring module is also be used to corresponding input data volume and the output data quantity of each buffer unit of the second cache module of recording described CAM card, and according to the magnitude relationship of the input data volume of record and output data quantity, determines the use state of the buffer unit of corresponding described the second cache module.
Preferably, the session request that described the second transceiver module also sends be used to receiving described CAM card, and according to described session request, described main frame and described CAM card are set up to session connection, described communication module is also set up network for the session request received according to described the second transceiver module by described main frame and multimedia server and is connected.
Technical scheme of the present invention, the spatial cache of the main frame by increasing digital TV integrated machine and then improve data throughout, and the use state of the spatial cache of immediately monitoring main frame, reduce the stand-by period in main frame and CAM card data exchange process, improve rate of interaction.
The accompanying drawing explanation
Fig. 1 is the schematic flow sheet of control method first embodiment of digital TV integrated machine internal communication of the present invention;
Fig. 2 is the schematic flow sheet of control method second embodiment of digital TV integrated machine internal communication of the present invention;
Fig. 3 is the idiographic flow schematic diagram of step S50 in Fig. 2;
Fig. 4 is the schematic flow sheet of control method the 3rd embodiment of digital TV integrated machine internal communication of the present invention;
Fig. 5 is the structured flowchart of digital TV integrated machine preferred embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
With reference to Fig. 1, Fig. 1 is the schematic flow sheet of control method first embodiment of digital TV integrated machine internal communication of the present invention, the method is applicable to comprise that main frame reaches the digital TV integrated machine of the CAM card be connected with the CI interface of main frame, the CI interface claims again pcmcia interface, (PERSONAL COMPUTER MEMORY CARD INTERNATIONAL ASSOCIATION, PC RAM (random access memory) card international federation), the method comprises the following steps:
The first monitoring module of S10, this main frame records corresponding input data volume and the output data quantity of each buffer unit of the first cache module of this main frame, and according to the magnitude relationship of the input data volume recorded and output data quantity, determines the use state of the buffer unit of the first corresponding cache module; This first cache module comprises at least three buffer units;
In this step S10, the first monitoring module records corresponding input data volume and the output data quantity of each buffer unit of this first cache module, namely record each buffer unit of this first cache module from CAM clamping the input data volume of receiving and the output data quantity that records each buffer unit of this first cache module, according to the magnitude relationship of the input data volume of each buffer unit of this first cache module and output data quantity, determine the use state of each buffer unit of this first cache module, this use state shows whether this buffer unit is in empty state, as, when the input data volume of certain buffer unit of the first cache module equals output data quantity, the data that this buffer unit is described are processed, this buffer unit is in empty state, can receive new data.
This first cache module comprises at least three buffer units, and the capacity of each buffer unit is greater than 254bytes but is less than 2048bytes.Preferably, this first cache module can comprise 16 buffer units (Send_Buffer0, Send_Buffer1 ... Send_Buffer15), this first cache module sends to the data of host waits host process for buffer memory CAM card.By this first monitoring module, note down input data volume and the output data quantity of these 16 buffer units, determine whether the use state of these 16 buffer units is empty.
The first determination module of S20, this CAM card determines that according to the use state that this first monitoring module received from this main frame produces this first cache module can receive the buffer unit of data;
In this step S20, the first determination module of CAM card can initiatively return to by the first monitoring module of this main frame the use state of each buffer unit of the first cache module, also can know by the first monitoring module of this main frame of poll the use state of each buffer unit of this first cache module.This first determination module is according to from the first monitoring module, obtaining the use state of each buffer unit of the first cache module, as receive Send_Buffer0 in 16 buffer units of the first cache module and Send_Buffer1 for empty, determine and can send data to this buffer unit Send_Buffer0 and Send_Buffer1.This first determination module can be known the use state of each buffer unit in the first cache module of main frame accurately, can know in advance which buffer unit of main frame can be used, and determines whether to send data to main frame, reduces blindly and waits for.
The first transceiver module of S30, this CAM card sends request data to main frame, and is stored in the buffer unit of this definite the first cache module.
As in step S20, determine and can send data to buffer unit Send_Buffer0 and the Send_Buffer1 of the first cache module, the first transceiver module of CAM card sends request data to this buffer unit Send_Buffer0 and Send_Buffer1.
Adopt said method, in main frame, increase the buffer memory capacity space of the first cache module, can receive more data that send over from the CAM card, and the use state of the spatial cache of this first cache module of immediately monitoring, this first cache module is fully used, reduce the stand-by period in main frame and CAM card data exchange process, improve rate of interaction.
With reference to Fig. 2, Fig. 2 is the schematic flow sheet of the second embodiment of the control method of digital TV integrated machine internal communication of the present invention.
Based on above-described embodiment, after execution step S30, the method also comprises:
S40, this main frame send to multimedia server by communication module by the request msg that the first cache module receives, and this main frame receives by this communication module the response data that this multimedia server returns.
In this step S40, this main frame will send to multimedia server by communication module from the request msg that the CAM clamping is received, and realize the interaction demand of CAM card and multimedia server.The data of receiving from the CAM clamping as this main frame are: the program inventory request of obtaining a certain television channel, this main frame sends to multimedia server by the program inventory request that this obtains a certain television channel, this multimedia server returns to corresponding response message according to this request, as returns to the program inventory information of a certain television channel.This main frame will obtain data from multimedia server and temporarily store, and not do dissection process.
The second monitoring module of S50, this CAM card is determined the use state of each buffer unit of the second cache module of this CAM card, and the use state of each buffer unit of the second cache module of this CAM card that will determine sends to this main frame; This second cache module comprises at least three buffer units;
This second cache module comprises at least three buffer units, the capacity of each buffer unit is greater than 254bytes but is less than 2Mbytes, preferably, this second cache module can comprise 16 buffer units (Rcv_Buffer0, Rcv_Buffer1 ... Rcv_Buffer15).This second monitoring module is determined the use state of each buffer unit of the second cache module of CAM card, knows namely whether each buffer unit of this second cache module is in sky (whether can receive data).
The second determination module of S60, this main frame determines that according to the use state that this second monitoring module of receiving from this CAM clamping produces this second cache module can receive the buffer unit of data;
In this step S60, the use state of each buffer unit of the second cache module that the second determination module of this main frame can initiatively return by the second monitoring module of this CAM card to be to determine whether sending data to this CAM card, the second monitoring module that also can be by this CAM card of poll with the use state of each buffer unit of obtaining this second cache module to determine whether sending data to this CAM card.
This second determination module is according to from the second monitoring module, obtaining the use state of each buffer unit of the second cache module, as receive Send_Buffer0 in 16 buffer units of the second cache module and Send_Buffer1 for empty, determine and can send data to this buffer unit Rcv_Buffer0 and Rcv_Buffer1.This second determination module can be known the use state of each buffer unit in the second cache module of CAM card accurately, can know in advance which buffer unit of CAM card can be used, and determines whether to send data to the CAM card, reduces blindly and waits for.
The response data that the second transceiver module of S70, this main frame receives this communication module sends to the buffer unit of this definite the second cache module;
When in step S70, the second determination module of this main frame determine the Send_Buffer0 of buffer unit of this second cache module and Rcv_Buffer1 use state as sky the time, in step S70, this main frame can send data to this buffer unit Send_Buffer0 and Rcv_Buffer1, namely this main frame can continue to send data to this CAM card, and the program inventory of a certain television channel that can obtain from multimedia server as this main frame or the video data transmitting of a certain television channel are given this CAM card.
Further, step S50 specifically comprises the following steps (as shown in Figure 3):
The second monitoring module of S51, this CAM card records corresponding input data volume and the output data quantity of each buffer unit of the second cache module of this CAM card;
S52, the use state of determining the buffer unit of the second corresponding cache module according to input data volume and the magnitude relationship of output data quantity of record.
In this step S51, this second monitoring module is noted down corresponding input data volume and the output data quantity of each buffer unit of this second cache module, namely records each buffer unit of this second cache module from main frame the input data volume received and the output data quantity that records each buffer unit of this second cache module; In step S52, according to the magnitude relationship of the input data volume of each buffer unit of this second cache module and output data quantity, determine the use state of each buffer unit of this second cache module, this use state shows whether this buffer unit is in empty state, as, when the input data volume of certain buffer unit of the second cache module equals output data quantity, the data that this buffer unit is described are processed, and this buffer unit is in empty state, can receive new data.
With reference to Fig. 4, Fig. 4 is the schematic flow sheet of the 3rd embodiment of the control method of digital TV integrated machine internal communication of the present invention.
On the basis of the first embodiment of the control method of digital TV integrated machine internal communication of the present invention, before step S10, the method also comprises:
The second transceiver module of S80, main frame receives the session request that the CAM card sends, and according to this session request, this main frame and this CAM card is set up to session connection and according to this session request, this main frame and multimedia server set up to network and be connected.
In this step S80, the second transceiver module of main frame receives the session request that the CAM card sends, and this session request comprises that this main frame of requirement opens up the quantity of the buffer unit of the first cache module, as opens up 16 buffer units; This session request also comprises that main frame connects the dialing number of times of external multimedia server, as 3 times; This session request comprises that this main frame connects the connection parameter of external multimedia server.This main frame connects according to the connection parameter in this session request and the communication module of self and multimedia server.
As shown in Figure 5, be the structured flowchart of digital TV integrated machine preferred embodiment of the present invention, this digital TV integrated machine comprises main frame 10 and CAM card 200, this main frame 10 is connected by the CI interface with CAM card 20; Wherein:
This main frame 10 comprises:
The first cache module 11, for the data that buffer memory receives from this CAM card 20, this first cache module 11 comprises at least three buffer units;
The first monitoring module 12, for recording corresponding input data volume and the output data quantity of each buffer unit of this first cache module 11, and according to the magnitude relationship of the input data volume recorded and output data quantity, determine the use state of the buffer unit of the first corresponding cache module 11;
This CAM card 20 comprises:
The first determination module 21, determine that for the use state of 12 generations of this first monitoring module according to receiving from this main frame 10 the first cache module 11 can receive the buffer unit of data;
The first transceiver module 22, be used to sending request data to main frame, and be stored in the buffer unit of the first definite cache module.
The first monitoring module 12 records input data volume and the output data quantity of correspondence of each buffer unit of this first cache module 11, namely record the buffer unit of this first cache module 11 from CAM card 20 the input data volume received and the output data quantity that records each buffer unit of this first cache module 11, according to the magnitude relationship of the reception data volume of each buffer unit of this first cache module 11 and output data quantity, determine the use state of each buffer unit of this first cache module 11, this use state shows whether this buffer unit is in empty state, as, when the input data volume of certain buffer unit of the first cache module 11 equals output data quantity, the data that this buffer unit is described are processed, this buffer unit is in empty state, can receive new data.
This first cache module 11 comprises at least three buffer units, and the capacity of each buffer unit is greater than 254bytes but is less than 2048bytes.Preferably, this first cache module 11 can comprise 16 buffer units (Send_Buffer0, Send_Buffer1 ... Send_Buffer15), this first cache module 11 sends to the data of host waits host process for buffer memory CAM card.By input data volume and the output data quantity of these the first monitoring module 12 these 16 buffer units of record, determine whether the use state of these 16 buffer units is empty.
The use state that the first determination module 21 of CAM card 20 can initiatively return to by the first monitoring module 12 of this main frame 10 each buffer unit of the first cache module 11 determines whether to send data to this main frame 10, also can know that the use state of each buffer unit of this first cache module 11 determines whether to send data to this main frame 10 by the first monitoring module 12 of this main frame 10 of poll.
This first determination module 21 is according to from the first monitoring module 12, obtaining the use state of each buffer unit of the first cache module, as receive Send_Buffer0 in 16 buffer units of the first cache module and Send_Buffer1 for empty, determine and can send data to this buffer unit Send_Buffer0 and Send_Buffer1.This first determination module 21 can be known the use state of each buffer unit in the first cache module 11 of main frame 10 accurately, can know in advance which buffer unit of main frame 10 can be used, and determines whether to send data to main frame, reduces blindly and waits for.
The first transceiver module 22 sends request data to buffer unit Send_Buffer0 and the Send_Buffer1 of the first cache module 11 that this first determination module 21 is determined.
Further, this main frame 10 also comprises:
Communication module 13, send to multimedia server for the request msg that this first cache module 11 is received, and receive the response data that this multimedia server returns.
This main frame 10 will send to multimedia server by communication module 13 from the request msg that CAM card 20 receives, and realize the interaction demand of CAM card and multimedia server.The data of receiving from the CAM clamping as this main frame are: the program inventory request of obtaining a certain television channel, this main frame sends to multimedia server by the program inventory request that this obtains a certain television channel, this multimedia server returns to corresponding response message according to this request, as returns to the program inventory information of a certain television channel.This main frame will obtain data from multimedia server and temporarily store, and not do dissection process.
Further, CAM card 20 also comprises the second cache module 23 and the second monitoring module 24, and this main frame 10 also comprises the second determination module 14 and the second transceiver module 15.
This second cache module 23, for the data that buffer memory receives from this main frame 10, this second cache module 23 comprises at least three buffer units; The capacity of each buffer unit is greater than 254bytes but is less than 2Mbytes, and preferably, this second cache module can comprise 16 buffer units (Rcv_Buffer0, Rcv_Buffer1 ... Rcv_Buffer15).
This second monitoring module 24, for the use state of each buffer unit of the second cache module 23 of determining this CAM card, and the use state of each buffer unit of the second cache module 23 of this CAM card 20 that will determine sends to this main frame.The use state of each buffer unit of the second cache module 23 of these second monitoring module, 24 definite CAM cards, know namely whether each buffer unit of this second cache module 23 is in sky (whether can receive data).
The second determination module 14, determine that for the use state that this second monitoring module 23 according to receiving from this CAM clamping produces this second cache module 23 can receive the buffer unit of data; The use state of each buffer unit of the second cache module 23 that the second determination module 14 of this main frame can initiatively return by the second monitoring module 24 of this CAM card to be to determine whether sending data to this CAM card, the second monitoring module 24 that also can be by this CAM card of poll with the use state of each buffer unit of obtaining this second cache module 23 to determine whether sending data to this CAM card.
This second determination module 14 is according to from the second monitoring module 24, obtaining the use state of each buffer unit of the second cache module 23, as receive Send_Buffer0 in 16 buffer units of the second cache module and Send_Buffer1 for empty, determine and can send data to this buffer unit Rcv_Buffer0 and Rcv_Buffer1.This second determination module 14 can be known the use state of each buffer unit in the second cache module of CAM card accurately, can know in advance which buffer unit of CAM card can be used, and determines whether to send data to the CAM card, reduces blindly and waits for.
The second transceiver module 15, for sending to by the response data that communication module receives from multimedia server the buffer unit of this definite the second cache module.As the second determination module 14, determine the Send_Buffer0 of buffer unit of these the second cache modules and Rcv_Buffer1 use state as sky the time, this second transceiver module 15 can send data to this buffer unit Send_Buffer0 and Rcv_Buffer1, namely this main frame can continue to send data to this CAM card, and the program inventory of a certain television channel that can obtain from multimedia server as this main frame or the video data transmitting of a certain television channel are given this CAM card
Further, this second monitoring module 24 is also be used to corresponding input data volume and the output data quantity of each buffer unit of the second cache module 23 of recording this CAM card, and according to the magnitude relationship of the input data volume of record and output data quantity, determines the use state of the buffer unit of the second corresponding cache module.
Corresponding input data volume and the output data quantity of each buffer unit of these the second monitoring module 24 these the second cache modules 23 of record, namely record each buffer unit of this second cache module 23 from main frame the input data volume received and the output data quantity that records each buffer unit of this second cache module 23, according to the magnitude relationship of the input data volume of each buffer unit of this second cache module and output data quantity, determine the use state of each buffer unit of this second cache module, this use state shows whether this buffer unit is in empty state, as, when the input data volume of certain buffer unit of the second cache module equals output data quantity, the data that this buffer unit is described are processed, this buffer unit is in empty state, can receive new data.
Further, the session request that this second transceiver module 15 also sends be used to receiving this CAM card 20, and according to this session request, this main frame and this CAM card 20 are set up to session connection, this communication module 13 is also set up network for the session request received according to this second transceiver module 15 by this main frame and multimedia server and is connected.
The second transceiver module 15 of main frame 10 receives the session request that CAM cards 20 send, and this session request comprises that this main frame 10 of requirement opens up the quantity of the buffer unit of the first cache module 11, as opens up 16 buffer units; This session request also comprises that main frame 10 connects the dialing number of times of external multimedia server, as 3 times; This session request comprises that this main frame 10 connects the connection parameter of external multimedia server.This main frame 10 connects with multimedia server according to the connection parameter in this session request and the communication module of self 13.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (10)
1. the control method of a digital TV integrated machine internal communication, the method are applicable to comprise main frame and the digital TV integrated machine of the CAM card that is connected with described main frame, it is characterized in that, the method comprises the following steps:
The first monitoring module of described main frame records corresponding input data volume and the output data quantity of each buffer unit of the first cache module of described main frame, and according to the magnitude relationship of the input data volume recorded and output data quantity, determines the use state of the buffer unit of corresponding described the first cache module; Described the first cache module comprises at least three buffer units;
The first determination module of described CAM card determines that according to the use state that described the first monitoring module received from described main frame produces described the first cache module can receive the buffer unit of data;
The first transceiver module of described CAM card sends request data to main frame, and is stored in the buffer unit of definite described the first cache module.
2. method according to claim 1, is characterized in that, described CAM card sends request data to main frame, and after being stored in the step of buffer unit of definite described the first cache module, the method also comprises:
Described main frame sends to multimedia server by communication module by the request msg that the first cache module receives; And
Described main frame receives by described communication module the response data that described multimedia server returns.
3. method according to claim 2, is characterized in that, after described main frame received the step of the response data that described multimedia server returns by described communication module, the method also comprised:
The second monitoring module of described CAM card is determined the use state of each buffer unit of the second cache module of described CAM card, and the use state of each buffer unit of the second cache module of the described CAM card that will determine sends to described main frame; Described the second cache module comprises at least three buffer units;
The second determination module of described main frame determines that according to the use state that described the second monitoring module of receiving from described CAM clamping produces described the second cache module can receive the buffer unit of data;
The response data that the second transceiver module of described main frame receives described communication module sends to the buffer unit of definite described the second cache module.
4. method according to claim 3, is characterized in that, the second monitoring module of described CAM card determines that the step of use state of each buffer unit of the second cache module of described CAM card comprises:
The second monitoring module of described CAM card records corresponding input data volume and the output data quantity of each buffer unit of the second cache module of described CAM card; And
According to the magnitude relationship of the input data volume recorded and output data quantity, determine the use state of the buffer unit of corresponding described the second cache module.
5. method according to claim 4, is characterized in that, before the first monitoring module of described main frame recorded the step of input data volume that each buffer unit of the first cache module of described main frame is corresponding and output data quantity, the method also comprised:
The second transceiver module of described main frame receives the session request that described CAM card sends, and according to described session request, described main frame and described CAM card is set up to session connection and according to described session request, described main frame and multimedia server set up to network and be connected.
6. a digital TV integrated machine, is characterized in that, this digital TV integrated machine comprises main frame and the CAM card be connected with described main frame, wherein:
Described main frame comprises:
The first cache module, for the data that buffer memory is received from described CAM clamping, described the first cache module comprises at least three buffer units;
The first monitoring module, for recording corresponding input data volume and the output data quantity of each buffer unit of described the first cache module, and according to the magnitude relationship of the input data volume recorded and output data quantity, determine the use state of the buffer unit of corresponding described the first cache module;
Described CAM card comprises:
The first determination module, determine that for the use state that described the first monitoring module according to receiving from described main frame produces described the first cache module can receive the buffer unit of data;
The first transceiver module, be used to sending request data to main frame, and be stored in the buffer unit of definite described the first cache module.
7. digital TV integrated machine according to claim 6, is characterized in that, described main frame also comprises:
Communication module, send to multimedia server for the request msg that described the first cache module is received, and receive the response data that described multimedia server returns.
8. digital TV integrated machine according to claim 7, is characterized in that, described CAM card also comprises the second cache module and the second monitoring module; Described the second cache module, for the data that buffer memory receives from described main frame, described the second cache module comprises at least three buffer units; Described the second monitoring module, for the use state of each buffer unit of the second cache module of determining described CAM card, and the use state of each buffer unit of the second cache module of the described CAM card that will determine sends to described main frame;
Described main frame comprises:
The second determination module, determine that for the use state that described the second monitoring module according to receiving from described CAM clamping produces described the second cache module can receive the buffer unit of data;
The second transceiver module, for sending to by the response data that communication module receives from multimedia server the buffer unit of definite described the second cache module.
9. digital TV integrated machine according to claim 8, it is characterized in that, described the second monitoring module is also be used to corresponding input data volume and the output data quantity of each buffer unit of the second cache module of recording described CAM card, and according to the magnitude relationship of the input data volume of record and output data quantity, determines the use state of the buffer unit of corresponding described the second cache module.
10. digital TV integrated machine according to claim 9, it is characterized in that, the session request that described the second transceiver module also sends be used to receiving described CAM card, and according to described session request, described main frame and described CAM card are set up to session connection, described communication module is also set up network for the session request received according to described the second transceiver module by described main frame and multimedia server and is connected.
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