CN107911635B - Satellite network scanning method based on digital television, digital television and storage device - Google Patents

Satellite network scanning method based on digital television, digital television and storage device Download PDF

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CN107911635B
CN107911635B CN201711163210.2A CN201711163210A CN107911635B CN 107911635 B CN107911635 B CN 107911635B CN 201711163210 A CN201711163210 A CN 201711163210A CN 107911635 B CN107911635 B CN 107911635B
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transponder
parameter list
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signal parameters
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CN107911635A (en
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潘伟雄
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Shenzhen Chuangwei RGB Electronics Co Ltd
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Shenzhen Chuangwei RGB Electronics Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/20Adaptations for transmission via a GHz frequency band, e.g. via satellite
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851Systems using a satellite or space-based relay
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50Tuning indicators; Automatic tuning control

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  • Signal Processing (AREA)
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  • Astronomy & Astrophysics (AREA)
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  • Aviation & Aerospace Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Radio Relay Systems (AREA)

Abstract

The invention discloses a satellite network scanning method based on a digital television, the digital television and a storage device, wherein the method comprises the following steps: automatically adding transponder parameters when scanning a satellite network, obtaining signal parameters to control a tuner to search, locking a high-frequency radio frequency signal, analyzing a transmission stream and storing a channel with the signal; according to the analyzed transmission stream, when the current network information table carries signal parameters, the signal parameters are judged to be stored again, and the signal parameters of the current network information table are added into a transponder parameter list; and controlling the tuner to retrieve the added signal parameters again, locking the high-frequency radio-frequency signal, and storing the scanned newly added channel. Under the condition of not updating preset satellite information, the invention automatically adds transponder parameters through fast scanning of a satellite network, then locks signals of the transponders one by one, and stores all channels with signals broadcasted by the transponders, thereby realizing that the scanning is faster and more accurate, and ensuring that channels with signals or without repetition are stored in the scanning.

Description

Satellite network scanning method based on digital television, digital television and storage device
Technical Field
The invention relates to the technical field of digital satellite televisions, in particular to a satellite network scanning method based on a digital television, the digital television and a storage device.
Background
The television is not replaced as central equipment for family living room entertainment, and with the continuous release and use of civil satellites, the transmission capacity is greatly increased, the program viewing quality is improved, and satellite digital television programs become richer and richer. The coverage area of the satellite direct broadcast digital television is large, the price of the current satellite television receiving set station is only hundreds of yuan, and a user watches programs transmitted by a direct broadcast satellite through a satellite antenna, a tuner and a receiver; the user experience is seriously affected due to the long channel searching time, for example, a lot of programs exist in Eutelsat hotbord of KU band, and the time required for using a conventional satellite blind scan (blind scan refers to a search function for automatically searching unknown signal parameters when a satellite receiver cannot predict a series of parameters such as frequency, symbol rate, and forward error correction shrinkage rate of a satellite signal) takes 30 minutes, and cannot meet the user requirement.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a satellite network scanning method based on a digital television, a digital television and a storage device, aiming at providing a method for automatically adding transponder parameters through a fast scan of a satellite network under the condition of not updating preset satellite information, then locking signals of transponders one by one, and storing all channels with signals broadcasted by the transponders, so as to realize the purpose of scanning stations faster and more accurately, and ensure that channels with signals or without repetition are stored in the scanning stations.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a satellite network scanning method based on digital television, wherein the satellite network scanning method based on digital television comprises the following steps:
automatically adding transponder parameters when scanning a satellite network, obtaining signal parameters to control a tuner to search, locking a high-frequency radio frequency signal, analyzing a transmission stream and storing a channel with the signal;
according to the analyzed transmission stream, when the current network information table carries signal parameters, the signal parameters are judged to be stored again, and the signal parameters of the current network information table are added into a transponder parameter list;
and controlling the tuner to retrieve the added signal parameters again, locking the high-frequency radio-frequency signal, and storing the scanned newly added channel.
The satellite network scanning method based on the digital television, wherein the automatically adding transponder parameters when satellite network scanning is performed, obtaining signal parameters to control a tuner to search, locking a high-frequency radio frequency signal, analyzing a transport stream and storing a channel of the signal specifically comprises:
presetting a first transponder parameter list of a satellite, wherein the first transponder parameter list comprises a plurality of signal parameters;
when satellite network scanning is started, acquiring a preset first transponder parameter list according to a satellite ID, and judging whether the first transponder parameter list is empty or not;
when the signal is not empty, sequentially acquiring signal parameters from the first transponder parameter list and assigning values, and setting a tuner at the front end of the receiver according to the acquired signal parameters;
and judging whether the high-frequency tuner retrieves a high-frequency radio frequency signal, if so, locking the high-frequency radio frequency signal, analyzing the transport stream and storing the channel.
The satellite network scanning method based on the digital television, wherein after judging whether the first transponder parameter list is empty, the method further comprises:
and when the parameter list of the first transponder is judged to be empty, the front end of the receiver cannot lock the signal, and the channel search is quitted.
The satellite network scanning method based on the digital television, wherein after judging whether the high-frequency radio-frequency signal is retrieved by the high-frequency tuner, the method further comprises:
when the high-frequency radio-frequency signal is not searched by the high-frequency tuner, judging whether the acquired signal parameter is the last signal parameter in the first transponder parameter list;
and if the evaluation result is positive, the satellite network fast scan is quitted, and if the evaluation result is negative, the next signal parameter is continuously obtained from the first transponder parameter list in sequence for assignment.
The satellite network scanning method based on the digital television, wherein the step of saving again when the current network information table carries the signal parameters is judged according to the analyzed transmission stream, and the step of adding the signal parameters of the current network information table into the transponder parameter list specifically comprises the steps of:
judging whether the current network information table carries signal parameters or not according to the analyzed transmission stream, and if so, storing the signal parameters to a second transponder parameter list;
judging whether the second transponder parameter list has repeated signal parameters, and if not, sequentially acquiring the signal parameters from the second transponder parameter list and assigning values;
comparing the signal parameters in the second transponder parameter list with all the signal parameters in the first transponder parameter list one by one, and judging whether the difference value of the frequencies of the two is within a preset frequency value range;
and if not, storing the signal parameters in the second transponder parameter list to the last of the first transponder parameter list, and adding one to the total number of the signal parameters in the first transponder parameter list.
The satellite network scanning method based on the digital television, wherein after judging whether the current network information table carries the signal parameters, the method further comprises the following steps:
when the current network information table is judged not to carry the signal parameter, judging whether the obtained signal parameter is the last signal parameter in the first transponder parameter list;
and if the evaluation result is positive, the satellite network fast scan is quitted, and if the evaluation result is negative, the next signal parameter is continuously obtained from the first transponder parameter list in sequence for assignment.
The method for scanning a satellite network based on a digital television, wherein the step of judging whether the second transponder parameter list has repeated signal parameters further comprises the following steps:
and when the second transponder parameter list has repeated signal parameters, only one repeated signal parameter in the second transponder parameter list is reserved.
The satellite network scanning method based on the digital television, wherein the step of locking the high-frequency radio-frequency signal after the added signal parameter corresponding to the control tuner is retrieved again, and the step of storing the scanned newly added channel specifically comprises the steps of:
when the signal parameters in the second transponder parameter list are compared with all the signal parameters in the first transponder parameter list, and the difference value of the frequencies of the signal parameters in the second transponder parameter list and all the signal parameters in the first transponder parameter list is within a preset frequency value range, judging whether the signal parameters in the second transponder parameter list are the last signal parameters in the second transponder parameter list;
if not, continuously acquiring next parameter data from the parameter list of the second transponder and assigning values;
if so, judging whether the signal parameter of the first transponder parameter list is the last signal parameter in the first transponder parameter list;
when yes, quitting the satellite network scanning;
and if not, continuously acquiring the next signal parameter from the first transponder parameter list in sequence for assignment until all the channels scanned by all the signal parameters are stored.
A digital television, comprising: a processor, a memory communicatively coupled to the processor, the memory storing a computer program for implementing the digital television-based satellite network scanning method when executed; the processor is used for calling the computer program in the memory so as to realize the satellite network scanning method based on the digital television.
A storage device, wherein the storage device stores a computer program executable for implementing the digital television-based satellite network scanning method.
The invention discloses a satellite network scanning method based on a digital television, the digital television and a storage device, wherein the method comprises the following steps: automatically adding transponder parameters when scanning a satellite network, obtaining signal parameters to control a tuner to search, locking a high-frequency radio frequency signal, analyzing a transmission stream and storing a channel with the signal; according to the analyzed transmission stream, when the current network information table carries signal parameters, the signal parameters are judged to be stored again, and the signal parameters of the current network information table are added into a transponder parameter list; and controlling the tuner to retrieve the added signal parameters again, locking the high-frequency radio-frequency signal, and storing the scanned newly added channel. Under the condition of not updating preset satellite information, the invention automatically adds transponder parameters through fast scanning of a satellite network, then locks signals of the transponders one by one, and stores all channels with signals broadcasted by the transponders, thereby realizing that the scanning is faster and more accurate, and ensuring that channels with signals or without repetition are stored in the scanning.
Drawings
Fig. 1 is a flow chart of a preferred embodiment of the digital television-based satellite network scanning method of the present invention.
Fig. 2 is a flowchart of a satellite network scanning process according to a preferred embodiment of the digital tv-based satellite network scanning method of the present invention.
Fig. 3 is a flow chart of a signal parameter adding process in a preferred embodiment of the digital television-based satellite network scanning method of the present invention.
FIG. 4 is a flow chart of a channel adding process in the preferred embodiment of the digital television-based satellite network scanning method of the present invention.
Fig. 5 is a specific flowchart illustrating the overall implementation process of the digital tv-based satellite network scanning method according to the preferred embodiment of the present invention.
Fig. 6 is a functional block diagram of a preferred embodiment of the digital television of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a method for scanning a satellite network based on a digital television according to a preferred embodiment of the present invention includes:
and S100, automatically adding transponder parameters when scanning the satellite network, obtaining signal parameters to control a tuner to search, locking a high-frequency radio frequency signal, analyzing a transmission stream and storing a channel with the signal.
Further, as shown in fig. 2, the step S100 specifically includes:
s101, presetting a first transponder parameter list of a satellite, wherein the first transponder parameter list comprises a plurality of signal parameters;
s102, when satellite network scanning is started, acquiring a preset first transponder parameter list according to a satellite ID, and judging whether the first transponder parameter list is empty or not;
s103, when the signal is not empty, sequentially acquiring signal parameters from the first transponder parameter list and assigning values, and setting a tuner at the front end of the receiver according to the acquired signal parameters;
s104, judging whether the high-frequency radio-frequency head retrieves a high-frequency radio-frequency signal, if so, locking the high-frequency radio-frequency signal, analyzing the transport stream and storing the channel.
Specifically, when the first transponder parameter list is determined to be empty, and the receiver front end cannot lock the signal, the channel search is exited. When the high-frequency radio-frequency signal is not searched by the high-frequency tuner, judging whether the acquired signal parameter is the last signal parameter in the first transponder parameter list; and if the evaluation result is positive, the satellite network fast scan is quitted, and if the evaluation result is negative, the next signal parameter is continuously obtained from the first transponder parameter list in sequence for assignment and the next step is continuously executed.
And S200, according to the analyzed transmission stream, storing the current network information table again when the current network information table carries the signal parameters, and adding the signal parameters of the current network information table into a transponder parameter list.
Further, as shown in fig. 3, the step S200 specifically includes:
s201, judging whether the current network information table carries signal parameters or not according to the analyzed transmission stream, and if so, storing the signal parameters to a second transponder parameter list;
s202, judging whether the second transponder parameter list has repeated signal parameters, and if not, sequentially acquiring the signal parameters from the second transponder parameter list and assigning values;
s203, comparing the signal parameters in the second transponder parameter list with all the signal parameters in the first transponder parameter list one by one, and judging whether the difference value of the frequencies of the two is within a preset frequency value range;
s204, if not, storing the signal parameters in the second transponder parameter list to the end of the first transponder parameter list, and adding one to the total number of the signal parameters in the first transponder parameter list.
Specifically, when it is determined that the current network information table does not carry signal parameters, it is determined whether the obtained signal parameters are the last signal parameters in the first transponder parameter list; and if the evaluation result is positive, the satellite network fast scan is quitted, and if the evaluation result is negative, the next signal parameter is continuously obtained from the first transponder parameter list in sequence for assignment and the next step is continuously executed.
After the determining whether there are repeated signal parameters in the second repeater parameter list, the method further includes: and when the second transponder parameter list has repeated signal parameters, only one repeated signal parameter in the second transponder parameter list is reserved.
And S300, controlling the tuner to retrieve the added signal parameters again, locking the high-frequency radio frequency signal, and storing the scanned newly added channel.
Further, as shown in fig. 4, the step S300 specifically includes:
s301, when the signal parameter in the second transponder parameter list is compared with all the signal parameters in the first transponder parameter list and the difference value of the frequencies of the two signal parameters is within a preset frequency value range, judging whether the signal parameter in the second transponder parameter list is the last signal parameter in the second transponder parameter list;
s302, when not, continuously acquiring next parameter data from the parameter list of the second transponder and assigning values;
s303, if yes, judging whether the signal parameter of the first transponder parameter list is the last signal parameter in the first transponder parameter list;
s304, if yes, quitting the satellite network scanning; and if not, continuously acquiring the next signal parameter from the first transponder parameter list in sequence for assignment until all the channels scanned by all the signal parameters are stored.
In order to make the above process clearer, the following specifically describes the execution steps of the whole process, and first presets (presets) satellite transponder parameters, and analyzes the code stream of the locking signal through the existing transponder parameter locking signal, filters the carried network information table, and screens the updated transponder parameters, thereby ensuring that the satellite network can scan and store more latest channels, as shown in fig. 5, the whole process specifically includes the following steps:
step 101: selecting a satellite network fast scan, and starting the satellite network fast scan;
step 102: acquiring a preset TP table 0 (namely a first transponder parameter list comprising a plurality of signal parameters) according to the satellite ID; for example, the preset TP table 0 is as follows:
step 103: judging whether the TP table 0 is empty or not;
step 104: if the TP table 0 is empty and the front end of the receiver can not lock the signal, directly quitting the channel search;
step 105: if the TP table 0 is not empty, sequentially taking first TP data from the TP table 0 and assigning values to the variables TPx;
step 106: setting a high-frequency head at the front end of the receiver by using the TPx parameters, and filtering a corresponding high-frequency radio frequency signal by using the high-frequency head;
step 107: judging whether a Tuner (Tuner) of the receiver retrieves the high-frequency radio frequency signal, if the Tuner does not retrieve the high-frequency radio frequency signal, jumping to step 118;
step 108: when the high-frequency radio frequency signal is locked, analyzing a TS (transport stream) and storing a channel according to the original flow;
the transport stream is one of two schemes proposed by a system layer of an MPEG II standard and used for multiplexing multiple channels of programs, and mainly aims at the transmission of data in an unreliable channel (the other scheme, namely the program stream is proposed for the transmission of the reliable channel), such as a satellite channel, a microwave channel or a CATV channel; the transport stream is formed by forming a basic stream encoder from the video stream and the audio stream forming the program, and each path of video stream or audio stream corresponds to one path of basic stream. The elementary stream is packetized to form a PES packet stream. Each PES packet has stream identification and time stamp for video and audio decoding and playing synchronization, and the PES packet and other data and control information pass through multiplexer to form TS packet, and the function of analyzing transport stream is to store channel.
Step 109: analyzing the TS stream, judging whether the current network information table carries TP data, if not, jumping to step 118;
step 110: if the current network information table carries TP data, the TP data is stored in a TP table 1 (namely a second transponder parameter list, carried signal parameters are judged according to normal logic requirements, and legal signal parameters are screened and stored, so that the signal retrieval efficiency is improved, and therefore the TP table 1 is a temporary signal parameter table);
step 111: judging whether the TP table 1 has repeated signal parameters, and if not, jumping to the step 113;
step 112: if the repeated signal parameters exist, rearranging the TP table 1, and only reserving one repeated TP data;
for example, in the following table, the gray in TP table 1 is the duplicate data, and one needs to be filtered out;
Figure 811027DEST_PATH_IMAGE002
step 113: sequentially taking first TP data from a TP table 1, and assigning a value to a variable TPa;
step 114: comparing the TPa data with all TP data of the TP table 0 one by one, judging whether the difference value of the frequencies of the TPa data and the TP data is in the range of 5MHz under the condition of the TP parameters with the same polarization mode and symbol rate, and jumping to the step 116 if the difference value is in the range of 5 MHz;
assuming that the TP data in TP table 0 and TP table 1 are as follows, taking the first signal parameter in TP table 0, 4135H 4339 is expressed as: frequency, polarization mode, symbol rate, it can be seen from the two tables that the representation of the gray color in TP table 0 and TP table 1 is the same signal parameter, and then TP table 1 needs to delete the signal parameter 3808H 8802.
Step 115: if no repeated TP parameters exist, the TPa data is saved to the end of a TP table 0, and meanwhile, the total number of TPs in the TP table 0 is increased by one;
step 116: judging whether the TPa is the last TP parameter of the TP table 1, if so, jumping to step 118;
step 117: if not, sequentially acquiring next TP data from the TP table 1, assigning a value to the variable TPa, and then jumping to step 114;
step 118: judging whether TPx is the last signal parameter in the TP table 0, if so, jumping to the step 120;
step 119: if the signal parameter is not the last signal parameter, sequentially taking down one signal data from the TP table 0, continuously assigning a value to the variable TPx, and then jumping to the step 106;
step 120: and exiting the satellite network for fast scanning.
Step 113-step 117 is to arrange the TP parameters in the TP table 1, store the legal TP parameters into the TP table 1 through condition judgment, store the other legal signal parameters carried behind the TP table 0, and repeat the search until the last signal parameter is searched.
The invention combines the advantages of blind scanning and operator network fast scanning, automatically adds the transponder parameters through the satellite network fast scanning under the condition of not updating the preset satellite information, then detects the signals of the transponders one by one, and stores the channels with the signals broadcasted by the transponders, the satellite network fast scanning enables the scanning to be faster and more accurate, ensures that the channels stored by the scanning are all provided with the signals, filters repeated channels instead of updating a simple channel list, and really improves the validity and the rapidity of the channel searching result. The problem that in the past, a user can only acquire all channels through blind scanning of a satellite but needs to wait for a long time, the operator network can only update the channels of the corresponding operators through fast scanning, and a plurality of channels are possibly displayed without signals when the user searches the channels is solved. According to the invention, when the preset satellite information is not updated by the same product and software, the latest full channel of the satellite is rapidly and efficiently obtained through the fast scanning of the satellite network, the blind scanning time of thirty minutes is reduced to about 10 minutes, and the satellite searching time is greatly saved.
In addition, the satellite network scanning method based on the digital television is also suitable for consumer electronics with the satellite digital television function, such as mobile phones, tablet computers, vehicle-mounted televisions and the like.
The present invention also provides a digital television, as shown in fig. 6, the digital television further includes: a processor (processor)10, a memory (memory)20, a communication Interface (Communications Interface)30, and a communication bus 40; wherein:
the processor 10, the memory 20 and the communication interface 30 complete mutual communication through the communication bus 40;
the communication interface 30 is used for information transmission between communication devices of the television;
the processor 10 is configured to call the computer program in the memory 20 to execute the method provided by the above method embodiments, for example, including: automatically adding transponder parameters when scanning a satellite network, obtaining signal parameters to control a tuner to search, locking a high-frequency radio frequency signal, analyzing a transmission stream and storing a channel with the signal; according to the analyzed transmission stream, when the current network information table carries signal parameters, the signal parameters are judged to be stored again, and the signal parameters of the current network information table are added into a transponder parameter list; and controlling the tuner to retrieve the added signal parameters again, locking the high-frequency radio-frequency signal, and storing the scanned newly added channel.
The present invention also provides a storage device storing a computer program executable for implementing the digital television-based satellite network scanning method.
In summary, the present invention provides a satellite network scanning method based on a digital television, a digital television and a storage device, wherein the method includes: automatically adding transponder parameters when scanning a satellite network, obtaining signal parameters to control a tuner to search, locking a high-frequency radio frequency signal, analyzing a transmission stream and storing a channel with the signal; according to the analyzed transmission stream, when the current network information table carries signal parameters, the signal parameters are judged to be stored again, and the signal parameters of the current network information table are added into a transponder parameter list; and controlling the tuner to retrieve the added signal parameters again, locking the high-frequency radio-frequency signal, and storing the scanned newly added channel. Under the condition of not updating preset satellite information, the invention automatically adds transponder parameters through fast scanning of a satellite network, then locks signals of the transponders one by one, and stores all channels with signals broadcasted by the transponders, thereby realizing that the scanning is faster and more accurate, and ensuring that channels with signals or without repetition are stored in the scanning.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims (9)

1. A satellite network scanning method based on digital television is characterized by comprising the following steps:
automatically adding transponder parameters when scanning a satellite network, obtaining signal parameters to control a tuner to search, locking a high-frequency radio frequency signal, analyzing a transmission stream and storing a channel with the signal;
the automatically adding transponder parameters when scanning the satellite network, obtaining signal parameters to control a tuner to search and then lock the high-frequency radio-frequency signal, analyzing the transport stream and storing the channel with the signal specifically comprises:
presetting a first transponder parameter list of a satellite, wherein the first transponder parameter list comprises a plurality of signal parameters;
when satellite network scanning is started, acquiring a preset first transponder parameter list according to a satellite ID, and judging whether the first transponder parameter list is empty or not;
when the signal is not empty, sequentially acquiring signal parameters from the first transponder parameter list and assigning values, and setting a tuner at the front end of the receiver according to the acquired signal parameters;
judging whether the high-frequency tuner retrieves a high-frequency radio frequency signal, if so, locking the high-frequency radio frequency signal, analyzing a transport stream and storing a channel;
according to the analyzed transmission stream, when the current network information table carries signal parameters, the signal parameters are judged to be stored again, and the signal parameters of the current network information table are added into a transponder parameter list;
and controlling the tuner to retrieve the added signal parameters again, locking the high-frequency radio-frequency signal, and storing the scanned newly added channel.
2. The digital television-based satellite network scanning method of claim 1, wherein said determining whether the first list of transponder parameters is empty further comprises:
and when the parameter list of the first transponder is judged to be empty, the front end of the receiver cannot lock the signal, and the channel search is quitted.
3. The method of claim 1, wherein determining whether the tuner retrieves the high frequency rf signal further comprises:
when the high-frequency radio-frequency signal is not searched by the high-frequency tuner, judging whether the acquired signal parameter is the last signal parameter in the first transponder parameter list;
and if the evaluation result is positive, the satellite network fast scan is quitted, and if the evaluation result is negative, the next signal parameter is continuously obtained from the first transponder parameter list in sequence for assignment.
4. The method according to claim 1, wherein the step of storing the current network information table again when the current network information table carries the signal parameter according to the parsed transport stream, and the step of adding the signal parameter of the current network information table to the repeater parameter list specifically comprises:
judging whether the current network information table carries signal parameters or not according to the analyzed transmission stream, and if so, storing the signal parameters to a second transponder parameter list;
judging whether the second transponder parameter list has repeated signal parameters, and if not, sequentially acquiring the signal parameters from the second transponder parameter list and assigning values;
comparing the signal parameters in the second transponder parameter list with all the signal parameters in the first transponder parameter list one by one, and judging whether the difference value of the frequencies of the two is within a preset frequency value range;
and if not, storing the signal parameters in the second transponder parameter list to the last of the first transponder parameter list, and adding one to the total number of the signal parameters in the first transponder parameter list.
5. The method as claimed in claim 4, wherein said determining whether the current network information table carries the signal parameters further comprises:
when the current network information table is judged not to carry the signal parameter, judging whether the obtained signal parameter is the last signal parameter in the first transponder parameter list;
and if the evaluation result is positive, the satellite network fast scan is quitted, and if the evaluation result is negative, the next signal parameter is continuously obtained from the first transponder parameter list in sequence for assignment.
6. The method of claim 4, wherein said determining if there are duplicate signal parameters in said second list of transponder parameters further comprises:
and when the second transponder parameter list has repeated signal parameters, only one repeated signal parameter in the second transponder parameter list is reserved.
7. The method according to claim 4, wherein the step of locking the high frequency rf signal after the added signal parameter corresponding to the control tuner is retrieved again comprises the step of storing the scanned newly added channel:
when the signal parameters in the second transponder parameter list are compared with all the signal parameters in the first transponder parameter list, and the difference value of the frequencies of the signal parameters in the second transponder parameter list and all the signal parameters in the first transponder parameter list is within a preset frequency value range, judging whether the signal parameters in the second transponder parameter list are the last signal parameters in the second transponder parameter list;
if not, continuously acquiring next parameter data from the parameter list of the second transponder and assigning values;
if so, judging whether the signal parameter of the first transponder parameter list is the last signal parameter in the first transponder parameter list;
when yes, quitting the satellite network scanning;
and if not, continuously acquiring the next signal parameter from the first transponder parameter list in sequence for assignment until all the channels scanned by all the signal parameters are stored.
8. A digital television, comprising: a processor, a memory communicatively connected to the processor, the memory storing a computer program for, when executed, implementing the method of any of claims 1-7;
the processor is configured to invoke a computer program in the memory to implement the method of any one of claims 1-7.
9. A storage device, characterized in that the storage device stores a computer program executable for implementing the method according to any one of claims 1-7.
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CN109525301A (en) * 2018-10-25 2019-03-26 深圳市海勤科技有限公司 Satellite signal reception method and system, server terminal, user terminal

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