CN102523483B - Method and device for transmission of control state information and multiple TSs - Google Patents
Method and device for transmission of control state information and multiple TSs Download PDFInfo
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- CN102523483B CN102523483B CN201110442854.1A CN201110442854A CN102523483B CN 102523483 B CN102523483 B CN 102523483B CN 201110442854 A CN201110442854 A CN 201110442854A CN 102523483 B CN102523483 B CN 102523483B
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Abstract
The invention discloses a method and a device for transmission of control state information and multiple transport streams (TS). The device comprises: a combiner, which is used for receiving a plurality of TSs from different sources and a control/state signal of a control unit as well as carrying out identifying to generate a combined stream; a master control exchanger, which is used for controlling the combiner and a demultiplexer to carry out controlling of a data transmission direction, state controlling and monitoring; and the demultiplexer, which is used for carrying out shunting on data from the master control exchanger and the control/state signal according to packet header identification after modification of a master control module. According to the method and the device for transmission of control state information and multiple TSs in the invention, problems including poor reliability caused by internal complex and tedious connection of digital television front-end equipment, inconsistency of control protocols, and uneasiness of debugging and maintenance can be solved; therefore, transmission and connection of a plurality of TSs and control state information between modules inside the digital television front-end equipment have advantages of high speed and convenience and high reliability.
Description
Technical field
The present invention relates to multiple transport stream (TS stream/TS, TS-Transport Stream, hereinafter referred to as TS) and the transmission of state of a control information in digital television front equipment inside and communication are that in digital television front equipment, the multiple TS of process and state of a control information transmit and the high speed of communication, reliably and easily method and apparatus at intermodule.
Background technology
At present, in digital television front equipment, the multiple TS inside of process is transmitted and is generally used separate hardware passage or interface, and distinct device inter-module communication adopts the Conventional communication modes such as I2C or SPI.Although this mode technology maturation, cause device interior connect complicated, loaded down with trivial details, control protocol is inconsistent, not easily debug and safeguard, causes the problems such as reliability is not high.
Summary of the invention
The problem that the present invention need solve be overcome digital television front equipment inside connect complicated, loaded down with trivial details, control protocol is inconsistent, not easily debug and safeguard, the problems such as the reliability caused is not high, makes the inner multiple TS of digital television front equipment and state of a control information transmit the state of a control information of advantage and the method and apparatus of multiple transport transmission that are connected and have the convenient and high reliability of high speed at intermodule.
The present invention can be achieved through the following technical solutions:
The invention discloses a kind of method of state of a control information and multiple transport transmission, comprise the steps:
The first step, receives multiple TS of separate sources and the control/status signal of control unit;
Second step, adds packet header mark to separate sources data and produces merging stream;
3rd step, carries out packet header replacement according to flag data source to packet header mark;
4th step, changes data and the control/status signal of different whereabouts according to the mapping table generated by software control into merging to circulate, and modifies by different whereabouts to packet header mark;
5th step, controls and monitoring the control of data transmission direction, state.
The invention discloses the equipment that a kind of state of a control information and many TS transmit, comprise receiving multiple TS of separate sources and the control/status signal of control unit and adding mark and produce and merge stream mixer; For controlling the control of data transmission direction, state and the master control interchanger of monitoring controlling mixer, splitter; By main control module amended packet header mark along separate routes from the data of main switch and the splitter of control/status signal.
Further, comprise in described mixer for separate sources data add packet header mark add packet header module and the packet header replacement module for originating according to flag data.
Further, described mixer includes several daughter board input modules, and each described daughter board input module is connected with M-TS interface respectively.
Further, described splitter includes several daughter board output modules, and each described daughter board output module is connected with M-TS interface respectively.
Further, described master control interchanger includes multiplex controller MUX, filtering module, map and PID replacement module, mapping table module, state of a control first, second fifo interface, flush bonding processor, described multiplex controller MUX is connected with several daughter board input modules, multiplex controller MUX is connected with filtering module, filtering module respectively with mapping and PID replacement module, first fifo interface connects, mapping and PID replacement module are connected with several daughter board output modules, second fifo interface is connected with flush bonding processor, described mapping table module respectively with mapping and PID replacement module, embedded processing connects, flush bonding processor is connected with multiplex controller MUX by the second fifo interface.
The method and apparatus that state of a control information of the present invention and many TS transmit can at the multiple TS of transmission simultaneously, transfer control/status signal easily, the simple beneficial effect of structure.
accompanying drawing illustrates:
Accompanying drawing 1 is the functional-block diagram of the equipment that state of a control information of the present invention and multiple transport transmit;
Accompanying drawing 2 is the concrete compositional block diagram of the equipment that state of a control information of the present invention and multiple transport transmit.
embodiment:
In order to make, method of the present invention is more clear to be understood, below in conjunction with Figure of description, the invention will be further described.
The present invention designs a kind of method of state of a control information and multiple transport transmission, comprises the steps:
The first step, receives multiple TS of daughter board separate sources and the control/status signal of control unit;
Second step, to separate sources data, adds packet header mark with TS bag (188Byte) for unit, produces and merge stream;
3rd step, carries out packet header replacement according to flag data source to packet header mark, guarantees that exporting PID does not conflict;
4th step, changes data and the control/status signal of different whereabouts according to the mapping table generated by software control into merging to circulate, and modifies by different whereabouts to packet header mark;
5th step, controls and monitoring the control of data transmission direction, state.
As shown in Figure 1, Figure 2, the invention discloses the equipment that a kind of state of a control information and many TS transmit, comprise receiving multiple TS of separate sources and the control/status signal of control unit and adding mark and produce and merge stream mixer 1; For controlling the control of data transmission direction, state and the master control interchanger 2 of monitoring controlling mixer, splitter; By main control module amended packet header mark along separate routes from the data of main switch and the splitter 3 of control/status signal.
Comprise in described mixer for separate sources data add packet header mark add packet header module and the packet header replacement module for originating according to flag data.
As shown in Figure 2, described mixer includes several daughter board input modules and M-TS interface, and each described daughter board input module is connected with M-TS interface respectively.
As shown in Figure 2, described splitter includes several daughter board output modules and M-TS interface, and each described daughter board output module is defeated to be respectively connected with M-TS interface.
As shown in Figure 2, described master control interchanger includes multiplex controller MUX, filtering module, map and PID replacement module, mapping table module, state of a control first, second fifo interface, flush bonding processor, described multiplex controller MUX is connected with several daughter board input modules, multiplex controller MUX is connected with filtering module, filtering module respectively with mapping and PID replacement module, first fifo interface connects, mapping and PID replacement module are connected with several daughter board output modules, second fifo interface is connected with flush bonding processor, described mapping table module respectively with mapping and PID replacement module, embedded processing connects, flush bonding processor is connected with multiplex controller MUX by the second fifo interface.
The present invention is in order to mark TS source and carry out PCR correction, and daughter board input module completes the work that packet adds head under mainboard controls, and data packet head contains the local zone time mark corrected for PCR; The mapping of mainboard and PID replacement module complete multiplexing and packet header is under man-machine interface manipulation packet header amendment, output module exports TS and control/status signal to object daughter board module according to packet header mark, and object module marks according to the entrance local zone time in packet header and current time stamp carries out PCR correction.
The above, be only preferred embodiment of the present invention, not does any pro forma restriction to the present invention; The those of ordinary skill of all industry all can shown in by specification accompanying drawing and the above and implement the present invention swimmingly; But all those skilled in the art are not departing within the scope of technical solution of the present invention, disclosed above technology contents can be utilized and make a little change, modify with differentiation equivalent variations, be Equivalent embodiments of the present invention; Meanwhile, all according to substantial technological of the present invention to the change of any equivalent variations that above embodiment is done, modify and differentiation etc., within the protection range all still belonging to technical scheme of the present invention.
Claims (1)
1. the equipment of the method for a state of a control information and many TS transmission, it is characterized in that: comprise receiving multiple TS of separate sources and the control/status signal of control unit and adding mark and produce the mixer (1) merging stream, for to mixer, the data transmission direction of splitter and state carry out the master control interchanger (2) controlling and monitor, by main control module amended packet header mark along separate routes from the data of main switch and the splitter (3) of control/status signal, comprise in described mixer for separate sources data add packet header mark add packet header module and for the packet header replacement module according to flag data whereabouts, described mixer (1) includes several daughter board input modules, and described in each, daughter board input module is connected with mixer respectively, described splitter (3) includes several daughter board output modules, daughter board output module described in each exports one or more TS transport stream and state of a control information respectively, described master control interchanger (2) includes multiplex controller MUX, filtering module, map and PID replacement module, mapping table module, state of a control first, second fifo interface, flush bonding processor, described multiplex controller MUX is connected with daughter board input module described in several, multiplex controller MUX is connected with filtering module, filtering module respectively with mapping and PID replacement module, first fifo interface connects, mapping and PID replacement module are connected with daughter board output module described in several, second fifo interface is connected with flush bonding processor, described mapping table module respectively with mapping and PID replacement module, embedded processing connects, flush bonding processor is connected with multiplex controller MUX by the second fifo interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110442854.1A CN102523483B (en) | 2011-12-27 | 2011-12-27 | Method and device for transmission of control state information and multiple TSs |
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| CN201110442854.1A CN102523483B (en) | 2011-12-27 | 2011-12-27 | Method and device for transmission of control state information and multiple TSs |
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| CN102523483A CN102523483A (en) | 2012-06-27 |
| CN102523483B true CN102523483B (en) | 2015-04-01 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103905840B (en) * | 2013-12-25 | 2017-05-10 | 惠州市伟乐科技有限公司 | System and method for achieving hybrid transmission of control state information and multiple transmission streams |
| CN106878765B (en) * | 2016-12-23 | 2020-04-17 | 伟乐视讯科技股份有限公司 | Backup monitoring system and method for information flow |
| CN106850644A (en) * | 2017-02-17 | 2017-06-13 | 山东浪潮商用系统有限公司 | A kind of method that TS bags PID modifications are realized based on Java language |
| CN108833945B (en) * | 2018-06-29 | 2021-12-17 | 井冈山电器有限公司 | Method and device for simultaneously transmitting multiple TS streams by using single-channel DMA (direct memory Access) |
| CN108650438A (en) * | 2018-07-06 | 2018-10-12 | 深圳市鼎盛威电子有限公司 | Digital TV front-end host and digital signal converting system |
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Address after: 516025 No. 1, Shunchang Road, Huinan Industrial Park, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee after: WELLAV TECHNOLOGIES Ltd. Address before: 516000 community 63, huitai Industrial Zone, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee before: WELLAV TECHNOLOGIES Co.,Ltd. |