CN109168035B - EPG information control device - Google Patents

Abstract

The invention provides an EPG information control device, comprising: a receiving module, a storage module and a control module; the receiving module is used for receiving timing information and status information corresponding to each TS stream output port respectively; the storage module is used for storing external equipment EPG information sent; the control module is respectively connected with the receiving module and the storage module, and is used to detect the timing information corresponding to each TS stream output port in turn at every preset time interval, and for each TS stream output port, If it is detected that the EPG information corresponding to the start address arrives at the sending time, judge whether the TS stream output port is in an idle state according to the status information, and if the TS stream output port is in an idle state, insert the EPG information into the output port of the TS stream output port. In the TS stream, the technical problem in the prior art that users cannot watch TV programs in time is alleviated, and the technical effect of enabling users to watch TV programs in time is achieved.

Description

A kind of EPG information control device

technical field

The present invention relates to the technical field of broadcasting and television, in particular to an EPG information control device.

Background technique

An electrical program guide (EPG for short) means an electronic program menu. The indexing and navigation of various services provided by IPTV are completed through the electronic program guide system. The EPG information is divided into basic EPG information and extended EPG information. The basic EPG information is described by the SI information table.

In practical applications, the SI table needs to be inserted into the TS stream for transmission at regular intervals. However, because the sending time of the SI table cannot be precisely controlled, the decoding end often cannot receive the SI table information in time, and thus cannot distinguish and decode various data of multiple programs in the TS stream. Users cannot watch TV programs in time.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide an EPG information control device to alleviate the technical problem existing in the prior art that users cannot watch TV programs in time.

In a first aspect, an embodiment of the present invention provides an EPG information control device, including: a receiving module, a storage module, and a control module;

The receiving module is used to receive timing information and status information respectively corresponding to each TS stream output port sent by an external device, and the timing information includes a preset sending time and a starting address for storing the EPG information;

The storage module is used to store the EPG information sent by the external device;

The control module is respectively connected with the receiving module and the storage module, and is used to detect the timing information corresponding to each of the TS stream output ports in sequence at preset time intervals, and for each of the TS stream output ports. The TS stream output port, if it is detected that the EPG information corresponding to the start address arrives at the sending time, judges whether the TS stream output port is in an idle state according to the status information, if the TS stream output port is in an idle state. If the port is in an idle state, the EPG information is inserted into the TS stream output by the TS stream output port.

In conjunction with the first aspect, an embodiment of the present invention provides a first possible implementation of the first aspect, wherein the EPG information includes at least one segment, and each segment includes at least one TS packet.

In conjunction with the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the timing information corresponding to each of the TS stream output ports includes the number of segment packets, a packet counter, and a timing counter , if the EPG information includes a segment, and each segment includes a plurality of the TS packets, the control module is further configured to:

For each TS stream output port, if the timing information corresponding to the TS stream output port is read, the preset time interval is added to the timing counter, if the first TS packet in the segment When the first sending moment is reached and the TS stream output port is in an idle state, the first TS packet is sent, and 1 is added to the packet counter;

If the timing information corresponding to the TS stream output port is read again, the preset time interval is added to the timing counter. If the second TS packet in the segment reaches the second sending time and the TS If the stream output port is in an idle state, the second TS packet is sent, and 1 is added to the packet counter;

If the value on the packet counter is equal to the number of segment packets, the packet counter and the timer counter are cleared to zero.

In conjunction with the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein the timing information corresponding to each of the TS stream output ports includes the number of segment packets, a packet counter, and a timing counter and the next segment packet address, if the EPG information includes a plurality of segments, each segment includes a plurality of the TS packets, and the control module is further configured to:

For each TS stream output port, if the timing information corresponding to the TS stream output port is read, the preset time interval is added to the timing counter, if the first segment in the first segment TS packets arrive at the sending time corresponding to the first TS packet and the TS stream output port is in an idle state, the first TS packet in the first segment is sent, and at the same time on the packet counter plus 1;

If the timing information corresponding to the TS stream output port is read again, the preset time interval is added to the timing counter. If the second TS packet in the first segment arrives at the same time as the second At the sending time corresponding to each TS packet and the TS stream output port is in an idle state, the second TS packet in the first segment is sent, and 1 is added to the packet counter at the same time;

If the value on the packet counter is equal to the number of packets in the segment, clear the packet counter and the timer counter to zero, and at the same time complete the processing of multiple TS packets in the second segment according to the packet address of the next segment. The sending process until the sending process of the last TS packet in the second segment.

In conjunction with the first aspect, the embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the packet header of each TS packet includes a packet counter and the number of packets in this segment, if the EPG information is The business description table or the business group association table, the control module is also used for:

For each TS stream output port, if it is detected that the EPG information corresponding to the start address arrives at the sending time, and the TS stream output port is in an idle state, the Extract the number of packets in this segment from the TS packet, send the first TS packet of the first segment at the same time, increase the packet counter by 1, and convert the state information from the idle state to the busy state at the same time ;

If the number of packets in the current segment is equal to the value on the packet counter, the packet counter is cleared to zero, and the state of the status information is converted from the busy state to the idle state at the same time.

In conjunction with the first aspect, the embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein port information is included in the header of each TS packet, and for each TS stream output port, if If the status information corresponding to the TS stream output port is in a busy state, the TS packet including the port information corresponding to the TS stream output port cannot be sent.

In conjunction with the first aspect, the embodiment of the present invention provides a sixth possible implementation manner of the first aspect, which further includes: a continuous count modification module;

The continuous count modification module is connected to the control module, and is configured to receive the TS packet to be inserted into the TS stream sent by the control module, and according to the port information in the header of the TS packet, Modify the port count information in the header of the TS packet.

In conjunction with the first aspect, the embodiment of the present invention provides a seventh possible implementation manner of the first aspect, which further includes: a clock domain conversion module;

The clock domain conversion module is connected to the continuous count modification module, and is used for obtaining the reference clock of the TS stream output port for each of the TS stream output ports, and sends the received continuous count modification module to the clock. The clock of the TS packet to be inserted into the TS stream is converted into the reference clock.

In conjunction with the first aspect, the embodiment of the present invention provides an eighth possible implementation manner of the first aspect, which further includes: a reference time interval module;

The reference time interval module is connected to the control module, and is configured to provide the control module with the preset time interval.

In conjunction with the first aspect, the embodiment of the present invention provides a ninth possible implementation manner of the first aspect, wherein the storage module is a Flash memory.

The embodiments of the present invention bring the following beneficial effects: the embodiments of the present invention provide an EPG information control device, including: a receiving module, a storage module, and a control module; The timing information and status information corresponding to the ports respectively, the timing information includes the preset sending time and the starting address for storing the EPG information; the storage module is used to store the EPG information sent by the external device; the control module is respectively associated with the The receiving module is connected to the storage module, and is used to detect the timing information corresponding to each of the TS stream output ports in turn at preset time intervals, and for each of the TS stream output ports, If it is detected that the EPG information corresponding to the start address arrives at the sending time, it is determined whether the TS stream output port is in an idle state according to the state information, and if the TS stream output port is in an idle state, the The EPG information is inserted into the TS stream output from the TS stream output port.

Therefore, the EPG information control device in the embodiment of the present invention can control the sending process of the EPG information more finely and efficiently according to the timing information and the status information, so as to avoid the failure of the decoding end to receive the SI table information in time, thereby preventing the The various data of multiple programs in the TS stream are differentiated and decoded, which leads to the problem that users cannot watch TV programs in time. Therefore, the technical problem that users cannot watch TV programs in time in the prior art is alleviated, so that users can not watch TV programs in time. The technical effect of being able to watch TV programs in time.

Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the description, claims and drawings.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts.

FIG. 1 is a first structural schematic diagram of an EPG information control device provided by an embodiment of the present invention;

FIG. 2 is a second schematic structural diagram of an EPG information control apparatus provided by an embodiment of the present invention;

3 is a third schematic structural diagram of an EPG information control device provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of a fourth structure of an EPG information control apparatus provided by an embodiment of the present invention.

Icons: 11-receiving module; 12-control module; 13-storage module; 21-continuous counting modification module; 31-clock domain conversion module; 41-reference time interval module.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

At present, the indexing and navigation of various services provided by IPTV are completed through an Electronic Program Guide (EPG) system. The EPG information is divided into basic EPG information and extended EPG information. The basic EPG information is described by the SI information table.

In practical applications, the SI table needs to be inserted into the TS stream for transmission at regular intervals. However, because the sending time of the SI table cannot be precisely controlled, the decoding end often cannot receive the SI table information in time, and thus cannot distinguish and decode various data of multiple programs in the TS stream. Users cannot watch TV programs in time. Based on this, an EPG information control device provided by the embodiment of the present invention can alleviate the technical problem that users cannot watch TV programs in time in the prior art, and achieve a technology that enables users to watch TV programs in time. Effect.

In order to facilitate the understanding of this embodiment, an EPG information control device disclosed in the embodiment of the present invention is first introduced in detail. As shown in FIG. 1 , the EPG information control device may include: a receiving module 11 , a storage module 13 and a control device module 12.

In this embodiment of the present invention, the EPG information control apparatus may be an FPGA-based EPG information control apparatus, or may be a CPLD-based EPG information control apparatus.

The receiving module 11 is configured to receive timing information and status information respectively corresponding to each TS stream output port sent by an external device, where the timing information includes a preset sending time and a start address for storing the EPG information.

The external device may be a processor. The timing information may include: start address, publishing interval, segment packet number, packet counter, timing counter and next segment packet address. The bit width of the start address can be 9 bits, the bit width of the publication interval can be 11 bits, the bit width of the segment packet number can be 3 bits, the bit width of the packet counter can be 3 bits, and the bit width of the timer counter can be 11 bits. bit, the bit width of the next segment of the packet address can be 10 bits. The preset sending time may be obtained according to the publication interval. The start address can be set by an external device during initialization. The setting range of the publication interval follows the flag protocol. For example, the publication interval setting range of NIT, SDT and BAT can be 50ms to 2047ms, and the publication interval setting range of EIT can be 25ms to 2s.

In this embodiment of the present invention, the external device may send a data update request to the control module 12, and then the control module 12 may return a notification of allowing data update to the external device.

The storage module 13 is configured to store the EPG information sent by the external device.

Exemplarily, the storage module 13 may be a Flash memory.

In this embodiment of the present invention, in order to utilize the storage space of the storage module 13 more effectively, the external device stores the EPG information in the storage module 13 in a dynamic storage manner.

The control module 12 is respectively connected with the receiving module 11 and the storage module 13, and is used to detect the timing information corresponding to each of the TS stream output ports in turn at every preset time interval, For each TS stream output port, if it is detected that the EPG information corresponding to the start address arrives at the sending time, it is determined whether the TS stream output port is in an idle state according to the state information, and if the If the TS stream output port is in an idle state, the EPG information is inserted into the TS stream output by the TS stream output port.

In this embodiment of the present invention, the preset time interval may be set to 1 ms. The TS stream output port can be in an idle state or a busy state. If the TS stream output port is being inserted with EPG information, the TS stream output port is in a busy state, and if no EPG information is inserted into the TS stream output port, the TS stream output port is in an idle state.

The EPG information may include at least one segment, and each segment may include at least one TS packet. The packet length of a TS packet can be 192 bytes, of which 4 bytes are privately defined bytes. The address of each storage module 13 stores a TS packet with a packet length of 192 bytes.

An embodiment of the present invention provides an EPG information control device, including: a receiving module, a storage module, and a control module; The timing information includes a preset sending time and a starting address for storing the EPG information; a storage module is used to store the EPG information sent by the external device; the control module is respectively connected with the receiving module and the storage module, using At every preset time interval, the timing information corresponding to each of the TS stream output ports is detected in turn. For each of the TS stream output ports, if the corresponding start address is detected When the EPG information arrives at the sending time, judge whether the TS stream output port is in an idle state according to the state information, and if the TS stream output port is in an idle state, insert the EPG information into the TS stream output in the TS stream output by the port.

Therefore, the EPG information control device in the embodiment of the present invention can control the sending process of the EPG information more finely and efficiently according to the timing information and the status information, so as to avoid the failure of the decoding end to receive the SI table information in time, thereby preventing the The various data of multiple programs in the TS stream are differentiated and decoded, which leads to the problem that users cannot watch TV programs in time. Therefore, the technical problem that users cannot watch TV programs in time in the prior art is alleviated, so that users can not watch TV programs in time. The technical effect of being able to watch TV programs in time.

In yet another embodiment of the present invention, the timing information corresponding to each of the TS stream output ports includes a segment packet number, a packet counter and a timing counter. If the EPG information includes a segment, in each segment Including a plurality of the TS packets, the control module is also used for:

For each TS stream output port, if the timing information corresponding to the TS stream output port is read, the preset time interval is added to the timing counter, if the first TS packet in the segment When the first sending time is reached and the TS stream output port is in an idle state, the first TS packet is sent, and 1 is added to the packet counter at the same time.

Exemplarily, the first sending moment may be obtained according to the publication interval in the timing information.

If the timing information corresponding to the TS stream output port is read again, the preset time interval is added to the timing counter. If the second TS packet in the segment reaches the second sending time and the TS When the stream output port is in an idle state, the second TS packet is sent, and 1 is added to the packet counter.

Exemplarily, the second sending moment may be obtained according to the publication interval in the timing information.

If the value on the packet counter is equal to the number of segment packets, the packet counter and the timer counter are cleared to zero.

In this embodiment of the present invention, if the value on the packet counter is equal to the number of packets in the segment, it means that all the multiple TS packets in the segment are sent out.

In yet another embodiment of the present invention, the timing information corresponding to each of the TS stream output ports includes a segment packet number, a packet counter, a timing counter and a next segment packet address, if the EPG information includes multiple segments , including a plurality of the TS packets in each segment, and the control module is also used for:

For each TS stream output port, if the timing information corresponding to the TS stream output port is read, the preset time interval is added to the timing counter, if the first segment in the first segment TS packets arrive at the sending time corresponding to the first TS packet and the TS stream output port is in an idle state, the first TS packet in the first segment is sent, and at the same time on the packet counter plus 1.

If the timing information corresponding to the TS stream output port is read again, the preset time interval is added to the timing counter. If the second TS packet in the first segment arrives at the same time as the second At the sending time corresponding to each TS packet and the TS stream output port is in an idle state, the second TS packet in the first segment is sent, and 1 is added to the packet counter at the same time.

If the value on the packet counter is equal to the number of packets in the segment, clear the packet counter and the timer counter to zero, and at the same time complete the processing of multiple TS packets in the second segment according to the packet address of the next segment. The sending process until the sending process of the last TS packet in the second segment.

In the embodiment of the present invention, the apparatus firstly controls the sending process of the multiple TS packets in the first segment, and waits until all the multiple TS packets in the first segment are sent out. Then control the sending process of the multiple TS packets in the second segment until the control completes the sending process of the multiple TS packets in the last segment.

Since the packet identifiers of the service description table and the service group association table are the same, it is necessary to avoid cross-transmission of TS packets in the segments where the two tables are located. In order to solve this problem, in another embodiment of the present invention, the packet header of each TS packet includes a packet counter and the number of packets in this segment. If the EPG information is a service description table or a service group association table, Then the control module is also used for:

For each TS stream output port, if it is detected that the EPG information corresponding to the start address arrives at the sending time, and the TS stream output port is in an idle state, the Extract the number of packets in this segment from the TS packet, send the first TS packet of the first segment at the same time, increase the packet counter by 1, and convert the state information from the idle state to the busy state at the same time ;

If the number of packets in the current segment is equal to the value on the packet counter, the packet counter is cleared to zero, and the state of the status information is converted from the busy state to the idle state at the same time.

In the embodiment of the present invention, since the state information corresponding to the output port of the TS stream is used, the problem of cross-transmitting TS packets in the segments where the service description table and the service group association table are located can be avoided, thereby improving the reliability of the TS packet sending process. Stability and efficiency.

In another embodiment of the present invention, port information is included in the header of each TS packet, and for each TS stream output port, if the state information corresponding to the TS stream output port is in a busy state, Then the TS packet including the port information corresponding to the output port of the TS stream cannot be sent.

In another embodiment of the present invention, as shown in FIG. 2 , the EPG information control apparatus may further include: a continuous count modification module 21 .

The continuous count modification module 21 is connected to the control module 12, and is configured to receive the TS packet to be inserted into the TS stream sent by the control module 12, and to receive the TS packet according to the packet header of the TS packet. Port information, modify the port count information in the header of the TS packet.

In the embodiment of the present invention, the continuous count modification module 21 can modify the port count information in the packet header of the TS packet, which improves the convenience of the information use process.

In another embodiment of the present invention, as shown in FIG. 3 , the EPG information control apparatus may further include: a clock domain conversion module 31 .

The clock domain conversion module 31 is connected to the continuous count modification module 21, and is used for obtaining the reference clock of the TS stream output port for each of the TS stream output ports, and the received continuous count modification module 21 The clock of the TS packet to be inserted into the TS stream sent is converted into the reference clock.

In the embodiment of the present invention, by adding the clock domain conversion module 31 to the EPG information control device, the reliability and accuracy of the sending process and the using process of the TS packet can be ensured.

In another embodiment of the present invention, as shown in FIG. 4 , the EPG information control apparatus may further include: a reference time interval module 41 .

The reference time interval module 41 is connected to the control module 12 for providing the control module 12 with the preset time interval.

Exemplarily, the preset time interval may be 1 ms.

In this embodiment of the present invention, since the reference time interval module 41 is used to provide the preset time interval for the control module 12, the accuracy and objectivity of the preset time interval can be ensured, and the control module 12 can be released at the same time. resources, so that the control module 12 does not need to take out additional resources to deal with the problem of the preset time interval.

The relative steps, numerical expressions and numerical values of the components and steps set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise.

The implementation principle and technical effects of the device provided by the embodiment of the present invention are the same as those of the foregoing method embodiment. For brief description, for the parts not mentioned in the device embodiment, reference may be made to the corresponding content in the foregoing method embodiment.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, for the specific working process of the system and device described above, reference may be made to the corresponding process in the foregoing method embodiments, which will not be repeated here.

In all examples shown and described herein, any specific value should be construed as merely exemplary and not as limiting, as other examples of exemplary embodiments may have different values.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more functions for implementing the specified logical function(s) executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented in dedicated hardware-based systems that perform the specified functions or actions , or can be implemented in a combination of dedicated hardware and computer instructions.

In addition, in the description of the embodiments of the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. The apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some communication interfaces, indirect coupling or communication connection of devices or units, which may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-executable non-volatile computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

Finally, it should be noted that the above-mentioned embodiments are only specific implementations of the present invention, and are used to illustrate the technical solutions of the present invention, but not to limit them. The protection scope of the present invention is not limited thereto, although referring to the foregoing The embodiment has been described in detail the present invention, and those of ordinary skill in the art should understand: any person skilled in the art who is familiar with the technical field of the present invention can still modify the technical solutions described in the foregoing embodiments within the technical scope disclosed by the present invention. Or can easily think of changes, or equivalently replace some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be covered in the present invention. within the scope of protection. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (9)

1. an EPG information control device, is characterized in that, comprises: receiving module, storage module and control module; The receiving module is used to receive timing information and status information respectively corresponding to each TS stream output port sent by an external device, and the timing information includes a preset sending time and a starting address for storing the EPG information; The storage module is used to store the EPG information sent by the external device; The control module is respectively connected with the receiving module and the storage module, and is used to detect the timing information corresponding to each of the TS stream output ports in sequence at preset time intervals, and for each of the TS stream output ports. The TS stream output port, if it is detected that the EPG information corresponding to the start address arrives at the sending time, judges whether the TS stream output port is in an idle state according to the status information, if the TS stream output port is in an idle state. If the port is in an idle state, then insert the EPG information into the TS stream output by the TS stream output port; Wherein, the EPG information includes at least one segment, and the one segment includes at least one TS packet. 2. The EPG information control device according to claim 1, wherein the timing information corresponding to each of the TS stream output ports includes a segment packet number, a packet counter and a timing counter, if the EPG information includes A segment, including a plurality of the TS packets in the one segment, and the control module is further configured to: For each TS stream output port, if the timing information corresponding to the TS stream output port is read, the preset time interval is added to the timing counter, if the first TS packet in the segment When the first sending moment is reached and the TS stream output port is in an idle state, the first TS packet is sent, and 1 is added to the packet counter; If the timing information corresponding to the TS stream output port is read again, the preset time interval is added to the timing counter. If the second TS packet in the segment reaches the second sending time and the TS If the stream output port is in an idle state, the second TS packet is sent, and 1 is added to the packet counter; If the value on the packet counter is equal to the number of segment packets, the packet counter and the timer counter are cleared to zero. 3. The EPG information control device according to claim 1, wherein the timing information corresponding to each of the TS stream output ports includes a segment packet number, a packet counter, a timing counter and a next segment packet address, if The EPG information includes a plurality of segments, and the one segment includes a plurality of the TS packets, and the control module is further configured to: For each TS stream output port, if the timing information corresponding to the TS stream output port is read, the preset time interval is added to the timing counter, if the first segment in the first segment TS packets arrive at the sending time corresponding to the first TS packet and the TS stream output port is in an idle state, the first TS packet in the first segment is sent, and at the same time on the packet counter plus 1; If the timing information corresponding to the TS stream output port is read again, the preset time interval is added to the timing counter. If the second TS packet in the first segment arrives at the same time as the second At the sending time corresponding to each TS packet and the TS stream output port is in an idle state, the second TS packet in the first segment is sent, and 1 is added to the packet counter at the same time; If the value on the packet counter is equal to the number of packets in the segment, clear the packet counter and the timer counter to zero, and at the same time complete the processing of multiple TS packets in the second segment according to the packet address of the next segment. The sending process until the sending process of the last TS packet in the second segment. 4. The EPG information control device according to claim 1, wherein the packet header of each of the TS packets includes a packet counter and the number of packets in this segment, if the EPG information is a service description table or a service group association table, the control module is also used to: For each of the TS stream output ports, if the EPG corresponding to the start address is detected When the information arrives at the sending time, and the TS stream output port is in an idle state, the number of packets in this segment is extracted from the first TS packet of the first segment, and the first segment of the first segment is sent at the same time. TS packets, while adding 1 to the packet counter, and converting the status information from the idle state to the busy state at the same time; If the number of packets in the current segment is equal to the value on the packet counter, the packet counter is cleared to zero, and the state of the status information is converted from the busy state to the idle state at the same time. 5 . The EPG information control device according to claim 1 , wherein port information is included in the header of each TS packet, and for each TS stream output port, if the TS stream output port is the same as the TS stream output port. 6 . If the corresponding state information is in the busy state, the TS packet including the port information consistent with the output port of the TS stream cannot be sent. 6. The EPG information control device according to claim 5, further comprising: a continuous count modification module; The continuous count modification module is connected to the control module, and is configured to receive the TS packet to be inserted into the TS stream sent by the control module, and according to the port information in the header of the TS packet, Modify the port count information in the header of the TS packet. 7. The EPG information control device according to claim 6, further comprising: a clock domain conversion module; The clock domain conversion module is connected to the continuous count modification module, and is used for obtaining the reference clock of the TS stream output port for each of the TS stream output ports, and sends the received continuous count modification module to the clock. The clock of the TS packet to be inserted into the TS stream is converted into the reference clock. 8. The EPG information control device according to claim 1, further comprising: a reference time interval module; The reference time interval module is connected to the control module, and is configured to provide the control module with the preset time interval. 9 . The EPG information control device according to claim 1 , wherein the storage module is a Flash memory. 10 .

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