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WO2018028124A1 - 电视机及其信号源的切换方法 - Google Patents

电视机及其信号源的切换方法 Download PDF

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Publication number
WO2018028124A1
WO2018028124A1 PCT/CN2016/112543 CN2016112543W WO2018028124A1 WO 2018028124 A1 WO2018028124 A1 WO 2018028124A1 CN 2016112543 W CN2016112543 W CN 2016112543W WO 2018028124 A1 WO2018028124 A1 WO 2018028124A1
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WO
WIPO (PCT)
Prior art keywords
signal source
current
target signal
main process
source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/112543
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English (en)
French (fr)
Inventor
林舜大
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen TCL Digital Technology Co Ltd
Original Assignee
Shenzhen TCL Digital Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen TCL Digital Technology Co Ltd filed Critical Shenzhen TCL Digital Technology Co Ltd
Publication of WO2018028124A1 publication Critical patent/WO2018028124A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB

Definitions

  • the present invention relates to the field of television technologies, and in particular, to a television and a method for switching a signal source thereof.
  • the signal source switching method is to close the functions of the current signal source one by one according to the set order. Close the current source channel, and then, after detecting the target source, turn on and perform the corresponding functions of the target source one by one in a preset order, but there are often times when the function is turned off or on. It is very long, causing the TV to slow down and take a long time when switching the signal source, which affects the user experience.
  • the invention provides a method for switching a television set and a signal source thereof, and the main purpose thereof is to solve the technical problem that the signal source switching speed of the existing television set is slow and takes a long time.
  • the present invention provides a method for switching a television signal source, and the method for switching the television signal source includes:
  • the step of running the first main process of closing the current signal source includes:
  • the step of running the first secondary process that shuts down the current source includes:
  • the method for switching the television signal source further includes the steps of:
  • the step of operating the second secondary process that shuts down the current source includes:
  • the step of running the second main process of turning on the target signal source includes:
  • the method for switching the television signal source further includes the steps of:
  • the step of running the third secondary process includes:
  • the present invention provides a method for switching a television signal source, and the method for switching the television signal source includes:
  • the method for switching the television signal source is further Including steps:
  • the step of the running to close the first main process of the current signal source includes:
  • the step of running the first secondary process that shuts down the current source includes:
  • the method for switching the television signal source further includes the steps of:
  • the step of operating the second secondary process that shuts down the current source includes:
  • the step of running the second main process that starts the target signal source includes:
  • the channel of the target signal source is turned on, and the current state of the target signal source is saved.
  • the method for switching the television signal source further includes the following steps:
  • the step of running the third secondary process includes:
  • the present invention also provides a television set, the television set comprising:
  • a main process module configured to: when receiving the signal source switching instruction, run the first main process that turns off the current signal source;
  • a secondary process module configured to: when the first primary process is running, run the first secondary process and the second secondary process that close the current source;
  • the main process module is further configured to: after the first main process runs, run a second main process that turns on the target signal source to complete the switching of the television signal source, wherein when the channel of the current signal source is closed, It is determined that the first main process is running.
  • the secondary process module is further configured to: after the second primary process is completed, run a third secondary process that starts the target signal source, to complete setting of each function of the target signal source, where After the state preservation of the target signal source is completed, it is determined that the second main process is completed.
  • the running, by the main process module, the first main process of shutting down the current source includes: turning off the currently played audio and video, stopping the detection of the current source, and closing the channel of the current source;
  • the step of the secondary process module running to close the first secondary process of the current signal source includes: stopping the hbbtv service of the current signal source, and resetting the output of the SCART interface;
  • the secondary process module After the main process module stops the detection of the current signal source, the secondary process module starts to run the second secondary process; and the step of the secondary process module running to close the second secondary process of the current signal source includes:
  • the step that the main process module runs the second main process that starts the target signal source to complete the switching of the television signal source includes:
  • the channel of the target signal source is turned on, and the current state of the target signal source is saved.
  • the step of the secondary process module running the third secondary process includes:
  • the main process module After the main process module completes the channel of the target signal source, setting a sound configuration, a signal source re-display rate, and a proportional mode of the target signal source;
  • the method for switching a television set and a signal source thereof when receiving a signal source switching instruction, runs a first main process to turn off the current signal source, and runs a second main process to turn on the target signal source to speed up the television set
  • the current signal source is switched to the target signal source, and while the first main process is running, the first sub-process and the second sub-process that close the current source are operated, so that when the source is switched, multiple
  • the process is synchronized, that is, each function that needs to be executed in the process of signal source switching is divided into multiple processes, and the operation of each sub-process does not affect the main process. Therefore, synchronous operation can be concurrently performed, which greatly improves
  • the switching speed of the signal source shortens the time taken by the signal source switching, and solves the technical problem that the signal source switching speed of the existing television set is slow and takes a long time.
  • FIG. 1 is a flow chart of a first embodiment of a method for switching a television signal source according to the present invention
  • FIG. 2 is a schematic diagram of a switching process of a conventional television signal source
  • FIG. 3 is a schematic diagram of a switching process of a television signal source according to the present invention.
  • FIG. 4 is a schematic diagram of functional modules of a first embodiment of a television set of the present invention.
  • the invention provides a method for switching a television signal source.
  • FIG. 1 a flow chart of a first embodiment of a method for switching a television signal source according to the present invention is shown.
  • the method for switching the television signal source includes:
  • Step S10 when receiving the signal source switching instruction, running the first main process that closes the current signal source, and simultaneously running the first sub-process and the second sub-process that close the current signal source;
  • the method for switching the television signal source proposed by the present invention is applicable to various television sets, such as digital television, smart televisions with intelligent operating systems, and the like.
  • a smart television will be described as an example, but the present invention is not limited thereto.
  • the user can switch the signal source switching command based on the signal source switching control set by the remote control device of the television set or the signal source switching button set on the television set.
  • the first main process when receiving the signal source switching instruction, the first main process is run, and the first main process includes various operations closely related to the current signal source. Specifically, the first main process, that is, the television, performs the following steps. :
  • the process of turning off the current source is: turn off the currently playing audio and video, avoid the situation of the screen in the subsequent process, and stop the signal detection of the current source after the sound is turned off.
  • the general smart TV When the general smart TV is working, it will Detecting the currently used signal source, for example, detecting whether the signal of the signal source is locked, the format of the signal, the change of the signal, etc., at this time, the detection of the signal is stopped, that is, the detection of the above contents is stopped, Failure to do so may result in an error in the signal service, for example, a signal change may cause an incorrect execution of the signal detection service.
  • the stop detection that is, the control and each service module stop performing their respective functions. After the detection of the current source has stopped, the channel of the current source is turned off.
  • the second sub-process While running the first main process, the second sub-process is run, and the second sub-process is to close some services related to the current signal source, such as some implementations take a long time, but will not affect the main process of the switching signal source.
  • the service specifically, runs the first secondary process, ie the TV performs the following steps:
  • hbbtv Hybrid Broadcast/Broadband
  • DVB-compatible content distribution platform a DVB-compatible content distribution platform
  • the second sub-process mainly detects various functional modules related to the program play of the current signal source, if When a function module is turned on, its corresponding function is stopped.
  • the subtitle function will be stopped, for example, CC (Closed) Caption, American standard subtitles, etc.
  • the teletext function is currently enabled, and the function is also stopped.
  • teletext is a TV text broadcast, which is generally used in Europe; if 3D playback is enabled, the next source may not have 3D. Therefore, it is generally necessary to stop the 3D function.
  • Step S20 after the first main process is completed, running a second main process that turns on the target signal source to complete the switching of the television signal source, wherein when the channel of the current signal source is closed, determining the first main After the process is completed, after the state of the target signal source is saved, it is determined that the second main process is completed.
  • the second main process can be started to start the target signal source. It can be understood that if the second sub-process is not completed at this time, the process can still be continued. run. Specifically, the first main process is run, that is, the television performs the steps of: detecting a signal of the target signal source; turning on a channel of the target signal source when detecting the signal of the target signal source, and saving the The current state of the target source.
  • the signal detection of the target signal source channel is started. When the signal of the target signal source changes, it is detected. When the signal is detected, the channel of the target signal source is turned on, and the state of the target signal source is saved. In general, the second secondary process has been run before the channel of the target source is turned on.
  • the above-mentioned first main process of turning off the current signal source and the second main process of turning on the target signal source constitute the main process of the television switching signal source in the present invention, that is, the main process is an indispensable process for switching the signal source, and
  • the correlation between each service in the other sub-processes is not very large, and the function does not need to be coupled. Therefore, it can be executed concurrently with the main process; in addition, the time occupied by each service in the sub-process is often compared. Long, putting them in the secondary process execution can greatly reduce the total time taken by the source switch.
  • the number of the main process and the secondary process, and the functions to be performed in the main process and the functions to be performed in each secondary process can be set in advance. .
  • the method for switching the television signal source further includes the following steps:
  • the third sub-process that turns on the target signal source is run to complete the setting of each function of the target signal source.
  • the third secondary process is executed, that is, the television performs the following steps: setting a sound configuration, a signal source re-display rate, and a proportional mode of the target signal source; and starting various functions related to the television program playing of the target signal source. And updating the channel configuration list; setting the lock of the target signal source, and determining whether the target signal source needs to enable the hbbtv service, and if necessary, turning on the hbbtv service of the target signal source.
  • the test signal comes, and the sound setting is started. At this time, the sound and image are still turned off, the signal is locked, the sound and image are turned on; next, the signal source is redisplayed. Rate, different signal sources, the size of the displayed picture is different, like ATV analog signal, due to interference, the quality of the general edge is not very good, so the reproduction rate will be small, like DTV, HDMI (High Definition Multimedia Digital signals such as Interface, digital video/audio interface technology, anti-interference will be better, so the re-display rate will be larger, and the PC signal re-display rate requirement is 100%.
  • the next step is to set the proportional mode.
  • the user adjusts 4:3 or 16:9, after switching the signal source, set the proportional mode according to the ratio set by the user.
  • start OAD is a function of upgrading the TV using the DTV channel
  • the CEC is the communication between the HDMI devices
  • the MTS is the Liyin detection service
  • the Liyin is the near-instant down-converted audio multi-channel broadcast. Then update the channel list to prepare for channel playback. If the current source is locked, then if you need to start the hbbtv service, start the hbbtv service.
  • the switching signal source After the real switching source is turned on, as long as the current source state is saved, the switching signal source is completed, and the following sound settings, target signal source re-display rate, proportional mode, etc. can be started gradually, and these services are relatively expensive. At the time, the user can continue to execute in the background for the smooth operation of the user.
  • FIG. 2 a schematic diagram of a complete signal switching process when the television set is switched in the prior art
  • FIG. 3 is a schematic flowchart of switching the signal source according to the method proposed by the present invention.
  • the invention adopts a multi-process concurrent form to switch the signal source, which has no influence on the main process, but the time-consuming service is put into the secondary process execution, for example, the hbbtv service, the reset of the SCART interface output, etc., and the caption is stopped.
  • the services such as CC and teletext are the same. They do not affect the main switching signal source, but they are time consuming.
  • the execution time of these functions can be executed before the source channel is opened, so it can be executed concurrently.
  • the existing TV signal source switching takes 750ms, and with the method of the invention, the TV switching signal source only needs 200ms, which greatly improves the switching speed of the signal source and shortens the signal source switching occupation. time.
  • the method for switching the signal source when receiving the signal source switching instruction, runs the first main process to close the current signal source, and runs the second main process to turn on the target signal source, so that the price television is from the current signal source.
  • the switching speed shortens the time taken by the signal source switching, and solves the technical problem that the existing TV set signal switching speed is slow and takes a long time.
  • a second embodiment of the switching method of the television signal source of the present invention is proposed based on the first embodiment.
  • the method for switching the television signal source before the step of turning on the channel of the target signal source, the method for switching the television signal source further includes the steps of:
  • the delay waits until the second secondary process is completed, and the step of turning on the channel of the target signal source and saving the current state of the target signal source is performed.
  • the stop of services such as subtitles, CC, and teletext may not be executed before the target source channel is turned on. Therefore, when the target is detected.
  • the signal of the signal source it is first determined whether the secondary process is running. If the operation is completed, the channel of the target signal source is turned on, and the current state of the target signal source is saved, otherwise the delay waits until the second pair The process execution is complete.
  • the invention also proposes a television set.
  • FIG. 4 it is a schematic diagram of functional modules of a first embodiment of a television set of the present invention.
  • the television set includes:
  • the main process module 10 is configured to: when receiving the signal source switching instruction, run the first main process that closes the current signal source, and simultaneously run the first sub-process and the second sub-process that close the current signal source;
  • the secondary process module 20 is configured to: after the first primary process is completed, run a second main process that turns on the target signal source to complete the switching of the television signal source, where the channel of the current signal source is closed, The first main process is completed, and after the state of the target signal source is saved, it is determined that the second main process is completed.
  • the television set proposed by the present invention may be various types of television sets, such as digital televisions, smart televisions with intelligent operating systems, and the like.
  • a smart television will be described as an example, but the present invention is not limited thereto.
  • the user can switch the signal source switching command based on the signal source switching control set by the remote control device of the television set or the signal source switching button set on the television set.
  • the main process module 10 runs the first main process, and the first main process includes various operations closely related to the current signal source. Specifically, the main process module 10 runs first.
  • the main process that is, on behalf of the television, performs the following operations: turning off the currently playing audio and video, stopping the detection of the current source, and turning off the channel of the current source.
  • the main process module 10 turns off the currently playing audio and video, avoids the situation that the screen will appear in the subsequent process, and stops the signal detection of the current signal source after the sound is turned off.
  • the signal source performs detection, for example, detecting whether the signal of the signal source is locked, the format of the signal, the change of the signal, etc., at this time, the detection of the signal is stopped, that is, the detection of the above contents is stopped, otherwise the signal is caused.
  • An error occurs in the service. For example, a signal change can cause an erroneous execution of the signal detection service.
  • the stop detection that is, the control and each service module stop performing their respective functions. After the detection of the current source has stopped, the channel of the current source is turned off.
  • the sub-process module 20 runs the second sub-process, and the second sub-process closes some services related to the current signal source, such as some implementations take a long time, but will not be
  • the service that affects the main process of the signal source, in particular, the operation of the second sub-process by the sub-process module 20 includes: stopping the hbbtv service of the current source and resetting the output of the SCART interface.
  • the hbbtv module 20 runs the first secondary process. If the function of the hbbtv module is currently on, the module is stopped. Service, if the module itself is turned off, no action is required to keep it closed. Similarly, for the reset of the SCART interface output, if there is a SCART interface output, reset it, otherwise no operation is required.
  • the secondary process module 20 starts running the second secondary process
  • the secondary process module 20 stops various functions associated with program play of the current source to complete the operation of the second secondary process.
  • the second sub-process mainly detects various functional modules related to the program play of the current signal source, if When the function module is in the on state, the corresponding function is stopped.
  • the subtitle function will be stopped, for example, CC, etc.
  • the teletext function is currently enabled, and the function is also stopped, wherein, teletext For TV text broadcasting, it is generally used in Europe; if 3D playback is turned on, because the next source does not necessarily have 3D, it is generally necessary to stop the 3D function.
  • the sub-process module 20 can start running the second main process to turn on the target signal source. It can be understood that if the second pair is at this time The process has not finished running and can still continue to run. Specifically, the main process module 10 completes detecting the signal of the target signal source; when detecting the signal of the target signal source, turns on the channel of the target signal source, and saves the current state of the target signal source.
  • the main process module 10 starts signal detection of the target signal source channel, and when the signal of the target signal source changes, it detects that when the signal is detected, the channel of the target signal source is turned on, and the state of the target signal source is saved. In general, the second secondary process has been run before the channel of the target source is turned on.
  • the above-mentioned first main process of turning off the current signal source and the second main process of turning on the target signal source constitute the main process of the television switching signal source in the present invention, that is, the main process is an indispensable process for switching the signal source, and
  • the correlation between each service in the other sub-processes is not very large, and the function does not need to be coupled. Therefore, it can be executed concurrently with the main process; in addition, the time occupied by each service in the sub-process is often compared. Long, putting them in the secondary process execution can greatly reduce the total time taken by the source switch.
  • the number of the main process and the secondary process, and the functions to be performed in the main process and the functions to be performed in each secondary process can be set in advance. .
  • the secondary process module 20 runs a third secondary process that turns on the target signal source to complete setting of each function of the target signal source. Specifically, the secondary process module 20 sets a sound configuration, a signal source replay rate, and a proportional mode of the target signal source; starts various functions related to television program play of the target signal source, and updates a channel configuration list; Decoding the target signal source, and determining whether the target signal source needs to enable the hbbtv service, and if necessary, turning on the hbbtv service of the target signal source.
  • the test signal comes, and the sound setting is started. At this time, the sound and image are still turned off, the signal is locked, the sound and image are turned on; next, the signal source is redisplayed. Rate, different signal sources, the size of the displayed picture is different, like ATV analog signal, due to interference, the quality of the general edge is not very good, so the reproduction rate will be small, such as DTV, HDMI and other figures Signal, anti-interference will be better, so the re-display rate will be larger, and the PC signal's re-display rate requirement is 100%.
  • the next step is to set the proportional mode.
  • the user adjusts 4:3 or 16:9, after switching the signal source, set the proportional mode according to the ratio set by the user.
  • start OAD is a function of upgrading the TV using the DTV channel
  • the CEC is the communication between the HDMI devices
  • the MTS is the Liyin detection service
  • the Liyin is the near-instant down-converted audio multi-channel broadcast. Then update the channel list to prepare for channel playback. If the current source is locked, then if you need to start the hbbtv service, start the hbbtv service.
  • the switching signal source After the real switching source is turned on, as long as the current source state is saved, the switching signal source is completed, and the following sound settings, target signal source re-display rate, proportional mode, etc. can be started gradually, and these services are relatively expensive. At the time, the user can continue to execute in the background for the smooth operation of the user.
  • FIG. 2 a schematic diagram of a complete signal switching process when the television set is switched in the prior art
  • FIG. 3 is a schematic flowchart of switching the signal source according to the method proposed by the present invention.
  • the invention adopts a multi-process concurrent form to switch the signal source, which has no influence on the main process, but the time-consuming service is put into the secondary process execution, for example, the hbbtv service, the reset of the SCART interface output, etc., and the caption is stopped.
  • the services such as CC and teletext are the same. They do not affect the main switching signal source, but they are time consuming.
  • the execution time of these functions can be executed before the source channel is opened, so it can be executed concurrently.
  • the existing TV signal source switching takes 750ms, and with the method of the invention, the TV switching signal source only needs 200ms, which greatly improves the switching speed of the signal source and shortens the signal source switching occupation. time.
  • the television set when receiving the signal source switching instruction, runs the first main process to close the current signal source, runs the second main process to turn on the target signal source, and switches the price television to the target signal from the current signal source.
  • the source and, while running the first main process, runs the first sub-process and the second sub-process that close the current source, so that when the source is switched, multiple processes can be synchronized, that is, the source
  • the functions that need to be performed in the process of switching are divided into multiple processes, and the operation of each secondary process does not affect the main process. Therefore, synchronous operation can be performed concurrently, which greatly improves the switching speed of the signal source.
  • the time taken by the signal source switching is shortened, and the technical problem that the signal source switching speed of the existing television set is slow and takes a long time is solved.
  • a second embodiment of the television set of the present invention is proposed based on the first embodiment.
  • the secondary process module 20 is further configured to: after the main process module completes the channel of the target signal source, set a sound configuration, a signal source replay rate, and a proportional mode of the target signal source; Generating various functions related to television program play of the target signal source, and updating the channel configuration list; and setting a lock of the target signal source, and determining whether the target signal source needs to enable the hbbtv service, if necessary, The hbbtv service of the target source is turned on.
  • the secondary process module 20 first determines whether the secondary process is running. If the operation is completed, the channel of the target signal source is turned on, and the current state of the target signal source is saved, otherwise the delay waits until the The second sub-process is completed.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
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  • Studio Circuits (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

本发明公开了一种电视机信号源的切换方法，该方法流程包括：在接收到信号源切换指令时，运行关闭当前信号源的第一主进程，同时运行关闭当前信号源的第一副进程和第二副进程；在所述第一主进程运行完成后，运行开启目标信号源的第二主进程以完成电视机信号源的切换，其中，在当前信号源的通道关闭时，判定所述第一主进程运行完成，在完成目标信号源的状态保存后，判定所述第二主进程运行完成。本发明还提出一种电视机。本发明解决了现有的电视机的信号源切换速度慢，占用时间长的技术问题。

Description

电视机及其信号源的切换方法
技术领域
本发明涉及电视技术领域，尤其涉及一种电视机及其信号源的切换方法。
背景技术
电视机设备，特别是智能电视机设备，集成的功能已经越来越多了，一般的信号源切换方法，切换信号源的过程往往是按照设定的顺序逐一将当前信号源的各个功能关闭直至关闭当前的信号源通道，然后在检测到目标信号源后，再按照预先设定的顺序逐一将目标信号源的各个功能开启并进行相应的设置，但是往往有一些功能关闭或者开启时占用的时间非常长，导致电视机在切换信号源时，速度比较慢、占用时间长，影响用户体验。
发明内容
本发明提供一种电视机及其信号源的切换方法，其主要目的在于解决现有的电视机的信号源切换速度慢，占用时间长的技术问题。
为实现上述目的，本发明提供一种电视机信号源的切换方法，该电视机信号源的切换方法包括：
在接收到信号源切换指令时，运行关闭当前信号源的第一主进程，同时运行关闭当前信号源的第一副进程和第二副进程；
在所述第一主进程运行完成后，运行开启目标信号源的第二主进程以完成电视机信号源的切换，其中，在当前信号源的通道关闭时，判定所述第一主进程运行完成；
在所述第二主进程运行完成后，运行开启目标信号源的第三副进程，以完成所述目标信号源的各个功能的设置，其中，在完成目标信号源的状态保存后，判定所述第二主进程运行完成；
所述运行关闭当前信号源的第一主进程的步骤包括：
关闭当前播放的音频和视频，停止所述当前信号源的检测，并关闭所述当前信号源的通道；
所述运行关闭当前信号源的第一副进程的步骤包括：
停止所述当前信号源的hbbtv服务，并且复位SCART接口的输出；
所述电视机信号源的切换方法还包括步骤：
在停止所述当前信号源的检测完成后，开始运行所述第二副进程；
所述运行关闭当前信号源的第二副进程的步骤包括：
停止与所述当前信号源的节目播放相关的各个功能以完成所述第二副进程的运行；
所述运行开启目标信号源的第二主进程的步骤包括：
检测所述目标信号源的信号；
在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态；
所述电视机信号源的切换方法还包括步骤：
在所述目标信号源的通道开启完成后，开始运行所述第三副进程；
所述运行所述第三副进程的步骤包括：
设置所述目标信号源的声音配置、信号源重显率和比例模式；
启动与所述目标信号源的电视节目播放相关的各个功能，并更新频道配置列表；
设置所述目标信号源的锁定，并判断所述目标信号源是否需要开启hbbtv服务，若需要，则开启所述目标信号源的hbbtv服务。
为实现上述目的，本发明提供一种电视机信号源的切换方法，该电视机信号源的切换方法包括：
在接收到信号源切换指令时，运行关闭当前信号源的第一主进程，同时运行关闭当前信号源的第一副进程和第二副进程；
在所述第一主进程运行完成后，运行开启目标信号源的第二主进程以完成电视机信号源的切换，其中，在当前信号源的通道关闭时，判定所述第一主进程运行完成。
可选地，所述在所述第一主进程运行完成后，开始运行开启目标信号源的第二主进程以完成电视机信号源的切换的步骤之后，所述电视机信号源的切换方法还包括步骤：
在所述第二主进程运行完成后，运行开启目标信号源的第三副进程，以完成所述目标信号源的各个功能的设置，其中，在完成目标信号源的状态保存后，判定所述第二主进程运行完成。
可选地，所述运行关闭当前信号源的第一主进程的步骤包括：
关闭当前播放的音频和视频，停止所述当前信号源的检测，并关闭所述当前信号源的通道；
所述运行关闭当前信号源的第一副进程的步骤包括：
停止所述当前信号源的hbbtv服务，并且复位SCART接口的输出；
所述电视机信号源的切换方法还包括步骤：
在停止所述当前信号源的检测完成后，开始运行所述第二副进程；
所述运行关闭当前信号源的第二副进程的步骤包括：
停止与所述当前信号源的节目播放相关的各个功能以完成所述第二副进程的运行。
可选地，所述运行开启目标信号源的第二主进程的步骤包括：
检测所述目标信号源的信号；
在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态。
可选地，所述电视机信号源的切换方法还包括步骤：
在所述目标信号源的通道开启完成后，开始运行所述第三副进程；
所述运行所述第三副进程的步骤包括：
设置所述目标信号源的声音配置、信号源重显率和比例模式；
启动与所述目标信号源的电视节目播放相关的各个功能，并更新频道配置列表；
设置所述目标信号源的锁定，并判断所述目标信号源是否需要开启hbbtv服务，若需要，则开启所述目标信号源的hbbtv服务。
此外，为实现上述目的，本发明还提供一种电视机，该电视机包括：
主进程模块，用于在接收到信号源切换指令时，运行关闭当前信号源的第一主进程；
副进程模块，用于在运行所述第一主进程的同时，运行关闭当前信号源的第一副进程和第二副进程；
所述主进程模块还用于：在所述第一主进程运行完成后，运行开启目标信号源的第二主进程以完成电视机信号源的切换，其中，在当前信号源的通道关闭时，判定所述第一主进程运行完成。
可选地，所述副进程模块还用于：在所述第二主进程运行完成后，运行开启目标信号源的第三副进程，以完成所述目标信号源的各个功能的设置，其中，在完成目标信号源的状态保存后，判定所述第二主进程运行完成。
可选地，所述主进程模块运行关闭当前信号源的第一主进程包括：关闭当前播放的音频和视频，停止所述当前信号源的检测，并关闭所述当前信号源的通道；
所述副进程模块运行关闭当前信号源的第一副进程的步骤包括：停止所述当前信号源的hbbtv服务，并且复位SCART接口的输出；以及
所述副进程模块在所述主进程模块停止所述当前信号源的检测完成后，开始运行所述第二副进程；所述副进程模块运行关闭当前信号源的第二副进程的步骤包括：
停止与所述当前信号源的节目播放相关的各个功能以完成所述第二副进程的运行。
可选地，所述主进程模块运行开启目标信号源的第二主进程以完成电视机信号源的切换的步骤包括：
检测所述目标信号源的信号；以及，
在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态。
可选地，所述副进程模块运行所述第三副进程的步骤包括：
在所述主进程模块完成所述目标信号源的通道开启后，设置所述目标信号源的声音配置、信号源重显率和比例模式；
启动与所述目标信号源的电视节目播放相关的各个功能，并更新频道配置列表；以及，
设置所述目标信号源的锁定，并判断所述目标信号源是否需要开启hbbtv服务，若需要，则开启所述目标信号源的hbbtv服务。
本发明提出的电视机及其信号源的切换方法，在接收到信号源切换指令时，运行第一主进程以关闭当前信号源，运行第二主进程以开启目标信号源，以加快电视机由当前信号源切换至目标信号源，并且，在运行第一主进程的同时，运行关闭当前信号源的第一副进程和第二副进程，因此，在进行信号源的切换时，可以将多个进程同步进行，即将信号源切换的过程中需要执行的各个功能划分为多个进程同步进行，而各个副进程的运行不会对主进程造成影响，因此，可以并发的同步运行，极大的提高了信号源的切换速度，缩短了信号源切换占用的时间，解决了现有的电视机的信号源切换速度慢，占用时间长的技术问题。
附图说明
图1为本发明电视机信号源的切换方法第一实施例的流程图；
图2为现有的电视机信号源的切换流程示意图；
图3为本发明电视机信号源的切换流程示意图；
图4为本发明电视机第一实施例的功能模块示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种电视机信号源的切换方法。参照图1所示，为本发明电视机信号源的切换方法第一实施例的流程图。
在本实施例中，该电视机信号源的切换方法包括：
步骤S10，在接收到信号源切换指令时，运行关闭当前信号源的第一主进程，同时运行关闭当前信号源的第一副进程和第二副进程；
需要说明的是，本发明提出的电视机信号源的切换方法适用于各种电视机，例如数字电视、具有智能操作系统的智能电视等。以下以智能电视为例进行说明，但是本发明并不局限于于此。
用户可以基于电视机的遥控装置设置的信号源切换控件或者设置在电视机上的信号源切换按键触发信号源切换指令。对于电视机来说，在接收到信号源切换指令时，运行第一主进程，第一主进程包括与当前信号源密切相关的各个操作，具体地，运行第一主进程即电视机执行以下步骤：
关闭当前播放的音频和视频，停止所述当前信号源的检测，并关闭所述当前信号源的通道。
关闭当前信号源的过程为：关闭当前播放的音频和视频，避免后续的过程中画面会出现花屏等情况，关闭掉声音后就停止当前信号源的信号检测，一般的智能电视在工作时，会对当前使用的信号源进行检测，例如，检测信号源的信号是否锁住、信号的格式、信号的变化等等，此时要停止信号的检测，也就是说，停止上述各项内容的检测，否则会导致信号服务出现错误，例如，信号变化会引起信号检测服务的错误执行。关于停止检测，即控制与各个服务模块停止执行各自的功能。在对当前信号源的检测停止完成后，关闭当前信号源的通道。
在运行第一主进程的同时，运行第二副进程，第二副进程是关闭与当前的信号源相关的一些服务，如一些执行耗费时间长，但是不会对切换信号源的主进程造成影响的服务，具体地，运行第一副进程，即电视机执行以下步骤：
停止所述当前信号源的hbbtv服务，并且复位SCART接口的输出。
可以理解的是，有的信号源可能需要开启hbbtv（Hybrid Broadcast/Broadband TV，一种与DVB兼容的内容发布平台）服务，因此，在运行第一副进程时，对hbbtv模块进行检测，若hbbtv模块的功能当前处于开启状态，则停止该模块的服务，若该模块本身就处于关闭状态，则不需要执行任何操作，使其继续保持关闭状态即可。同样地，关于SCART接口输出的复位，假如有SCART接口输出的，将其复位，否则不需要执行任何操作。
在停止所述当前信号源的检测完成后，开始运行所述第二副进程；
运行第二副进程，即电视机执行以下步骤：
停止与所述当前信号源的节目播放相关的各个功能以完成所述第二副进程的运行。
对于不同的信号源可能对于节目的播放有不用的功能需要，例如是否有提供字幕服务，是否为3D播放等，第二副进程主要是检测与当前信号源的节目播放相关的各个功能模块，若有功能模块处于开启状态，则停止其对应的功能，例如，当前信号源为ATV（模拟电视信号）或者DTV（数字电视信号）时，那么会停止字幕功能，例如CC（Closed Caption，美国标准的字幕）等，当前开启了teletext功能，也会停止该功能，其中，teletext为电视文字广播，一般在欧洲使用；假如开启了3D播放，因为下一个信号源不一定会有3D，所以一般还要停止3D功能。
步骤S20，在所述第一主进程运行完成后，运行开启目标信号源的第二主进程以完成电视机信号源的切换，其中，在当前信号源的通道关闭时，判定所述第一主进程运行完成，在完成目标信号源的状态保存后，判定所述第二主进程运行完成。
在第一主进程完成后，即当前信号源的通道关闭后，可以开始运行第二主进程，以开启目标信号源，可以理解的是，若此时第二副进程没有运行完成，仍然可以继续运行。具体地，运行第一主进程，即电视机执行以下步骤：检测所述目标信号源的信号；在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态。
启动目标信号源通道的信号检测，当目标信号源的信号有变化时，就会检测到，当检测到信号时，开启目标信号源的通道，保存目标信号源的状态。一般情况下，在目标信号源的通道开启之前，第二副进程已经运行完毕。
上述与关闭当前信号源的第一主进程和开启目标信号源的第二主进程构成了本发明中电视机切换信号源的主进程，即这个主要流程为切换信号源必不可少的过程，而其他的各个副进程中的各个服务与主进程的相关性不是很大，且功能上不需要耦合，因此，可以并发的与主进程同时执行；此外，副进程中的各个服务往往占用的时间比较长，将它们放在副进程执行，能够极大地缩短信号源切换占用的总时间。
因此，在电视机出厂前或者在设置电视机的信号源切换流程时，可以根据需要预先设置号主进程和副进程，以及主进程中需要执行的各个功能、各个副进程中需要执行的各个功能。
进一步地，在完成步骤S20之后，该电视机信号源的切换方法还包括步骤：
在所述第二主进程运行完成后，运行开启目标信号源的第三副进程，以完成所述目标信号源的各个功能的设置。具体地，运行第三副进程，即电视机执行以下步骤：设置所述目标信号源的声音配置、信号源重显率和比例模式；启动与所述目标信号源的电视节目播放相关的各个功能，并更新频道配置列表；设置所述目标信号源的锁定，并判断所述目标信号源是否需要开启hbbtv服务，若需要，则开启所述目标信号源的hbbtv服务。
当目标信号源的通道开启后，测试信号来了，开始进行声音设置，此时声音和图像还是被关闭的，信号被锁住，声音和图像才会被打开；接下来设置信号源的重显率，不同的信号源，其显示的画面的大小是不一样的，像ATV模拟信号，由于干扰的缘故，一般边缘的质量不是很好，所以重现率会小的，像DTV、HDMI（High Definition Multimedia Interface，数字化视频/音频接口技术）等数字信号，抗干扰会比较好，所以重显率会比较大，而PC信号的重显率要求是100%。接下来就是设置比例模式，假如用户调整了4：3或者16:9，切换信号源之后就按照用户设置的比例设置比例模式，设置完成后，启动OAD、CEC、CC、teletext、MTS等服务，其中OAD为使用DTV通道进行电视机升级的功能，CEC是HDMI设备之间的通信，MTS为丽音检测服务，丽音为接近即时的缩扩音频多路广播。然后更新一下频道列表，为频道播放做好准备工作，假如当前信号源是被锁住的，那最后假如需要启动hbbtv的服务，就启动hbbtv服务。
当真正执行打开切换信号源后，只要保存当前的信号源状态，切换信号源就算完成，后面的声音设置，目标信号源重显率，比例模式等功能都可以逐步启动，而且这些服务都比较耗时，为了用户的流畅性操作，所以可以在后台继续执行。
参照图2所示，为现有技术中电视机在进行信号源的切换时，完整的信号切换流程示意图，参照图3所示，为根据本发明提出的方法进行信号源的切换的流程示意图，本发明采用多进程并发的形式进行信号源的切换，将对主进程没有什么影响，但会比较耗时间的服务放到副进程执行，例如，hbbtv服务、SCART接口输出的复位等等，停止字幕、CC、teletext等服务也是一样，不对主要的切换信号源造成影响，但会比较耗时间，这几个功能的执行时间又能够在打开信号源通道之前执行完毕，所以可以并发的执行。经过编写代码验证，现有的电视机信号源切换耗时750ms，而采用本发明的方法，电视机切换信号源只需要200ms，极大的提高了信号源的切换速度，缩短了信号源切换占用的时间。
本实施例提出的信号源的切换方法，在接收到信号源切换指令时，运行第一主进程以关闭当前信号源，运行第二主进程以开启目标信号源，以价格电视机由当前信号源切换至目标信号源，并且，在运行第一主进程的同时，运行关闭当前信号源的第一副进程和第二副进程，因此，在进行信号源的切换时，可以将多个进程同步进行，即将信号源切换的过程中需要执行的各个功能划分为多个进程同步进行，而各个副进程的运行不会对主进程造成影响，因此，可以并发的同步运行，极大的提高了信号源的切换速度，缩短了信号源切换占用的时间，解决了现有的电视机的信号源切换速度慢，占用时间长的技术问题。
基于第一实施例提出本发明电视机信号源的切换方法的第二实施例。在本实施例中，在开启所述目标信号源的通道的步骤之前，该电视机信号源的切换方法还包括步骤：
在检测到所述目标信号源的信号时，判断所述第二副进程是否运行完成；
若所述第二副进程运行完成时，执行开启所述目标信号源的通道，并保存所述目标信号源的当前状态的步骤；
若所述第二副进程运行完成后，则延时等待直至所述第二副进程执行完成，执行开启所述目标信号源的通道，并保存所述目标信号源的当前状态的步骤。
由于对于不同的信号源，在播放电视节目时，设置的功能不尽相同，因此，字幕、CC、teletext等服务的停止可能在打开目标信号源通道之前还没有执行完毕，因此，在检测到目标信号源的信号时，要先判断副进程是否运行完成，若运行完成，则开启所述目标信号源的通道，并保存所述目标信号源的当前状态，否则延时等待直至所述第二副进程执行完成。
本发明还提出一种电视机。
参照图4所示，为本发明电视机第一实施例的功能模块示意图。
在该实施例中，该电视机包括：
主进程模块10，用于在接收到信号源切换指令时，运行关闭当前信号源的第一主进程，同时运行关闭当前信号源的第一副进程和第二副进程；
副进程模块20，用于在所述第一主进程运行完成后，运行开启目标信号源的第二主进程以完成电视机信号源的切换，其中，在当前信号源的通道关闭时，判定所述第一主进程运行完成，在完成目标信号源的状态保存后，判定所述第二主进程运行完成。
需要说明的是，本发明提出的电视机可以是各种类型的电视机，例如数字电视、具有智能操作系统的智能电视等。以下以智能电视为例进行说明，但是本发明并不局限于于此。
用户可以基于电视机的遥控装置设置的信号源切换控件或者设置在电视机上的信号源切换按键触发信号源切换指令。对于电视机来说，在接收到信号源切换指令时，主进程模块10运行第一主进程，第一主进程包括与当前信号源密切相关的各个操作，具体地，主进程模块10运行第一主进程，即代表电视机执行以下操作：关闭当前播放的音频和视频，停止所述当前信号源的检测，并关闭所述当前信号源的通道。
主进程模块10关闭当前播放的音频和视频，避免后续的过程中画面会出现花屏等情况，关闭掉声音后就停止当前信号源的信号检测，一般的智能电视在工作时，会对当前使用的信号源进行检测，例如，检测信号源的信号是否锁住、信号的格式、信号的变化等等，此时要停止信号的检测，也就是说，停止上述各项内容的检测，否则会导致信号服务出现错误，例如，信号变化会引起信号检测服务的错误执行。关于停止检测，即控制与各个服务模块停止执行各自的功能。在对当前信号源的检测停止完成后，关闭当前信号源的通道。
在主进程模块10运行第一主进程的同时，副进程模块20运行第二副进程，第二副进程是关闭与当前的信号源相关的一些服务，如一些执行耗费时间长，但是不会对切换信号源的主进程造成影响的服务，具体地，副进程模块20运行第二副进程包括：停止所述当前信号源的hbbtv服务，并且复位SCART接口的输出。
可以理解的是，有的信号源可能需要开启hbbtv服务，因此，在副进程模块20运行第一副进程时，对hbbtv模块进行检测，若hbbtv模块的功能当前处于开启状态，则停止该模块的服务，若该模块本身就处于关闭状态，则不需要执行任何操作，使其继续保持关闭状态即可。同样地，关于SCART接口输出的复位，假如有SCART接口输出的，将其复位，否则不需要执行任何操作。
在主进程模块10停止所述当前信号源的检测完成后，副进程模块20开始运行所述第二副进程；
副进程模块20停止与所述当前信号源的节目播放相关的各个功能以完成所述第二副进程的运行。
对于不同的信号源可能对于节目的播放有不用的功能需要，例如是否有提供字幕服务，是否为3D播放等，第二副进程主要是检测与当前信号源的节目播放相关的各个功能模块，若有功能模块处于开启状态，则停止其对应的功能，例如，当前信号源为ATV或者DTV时，那么会停止字幕功能，例如CC等，当前开启了teletext功能，也会停止该功能，其中，teletext为电视文字广播，一般在欧洲使用；假如开启了3D播放，因为下一个信号源不一定会有3D，所以一般还要停止3D功能。
在主进程模块10完成第一主进程后，即当前信号源的通道关闭后，副进程模块20可以开始运行第二主进程，以开启目标信号源，可以理解的是，若此时第二副进程没有运行完成，仍然可以继续运行。具体地，主进程模块10完成检测所述目标信号源的信号；在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态。
主进程模块10启动目标信号源通道的信号检测，当目标信号源的信号有变化时，就会检测到，当检测到信号时，开启目标信号源的通道，保存目标信号源的状态。一般情况下，在目标信号源的通道开启之前，第二副进程已经运行完毕。
上述与关闭当前信号源的第一主进程和开启目标信号源的第二主进程构成了本发明中电视机切换信号源的主进程，即这个主要流程为切换信号源必不可少的过程，而其他的各个副进程中的各个服务与主进程的相关性不是很大，且功能上不需要耦合，因此，可以并发的与主进程同时执行；此外，副进程中的各个服务往往占用的时间比较长，将它们放在副进程执行，能够极大地缩短信号源切换占用的总时间。
因此，在电视机出厂前或者在设置电视机的信号源切换流程时，可以根据需要预先设置号主进程和副进程，以及主进程中需要执行的各个功能、各个副进程中需要执行的各个功能。
副进程模块20在所述第二主进程运行完成后，运行开启目标信号源的第三副进程，以完成所述目标信号源的各个功能的设置。具体地，副进程模块20设置所述目标信号源的声音配置、信号源重显率和比例模式；启动与所述目标信号源的电视节目播放相关的各个功能，并更新频道配置列表；设置所述目标信号源的锁定，并判断所述目标信号源是否需要开启hbbtv服务，若需要，则开启所述目标信号源的hbbtv服务。
当目标信号源的通道开启后，测试信号来了，开始进行声音设置，此时声音和图像还是被关闭的，信号被锁住，声音和图像才会被打开；接下来设置信号源的重显率，不同的信号源，其显示的画面的大小是不一样的，像ATV模拟信号，由于干扰的缘故，一般边缘的质量不是很好，所以重现率会小的，像DTV、HDMI等数字信号，抗干扰会比较好，所以重显率会比较大，而PC信号的重显率要求是100%。接下来就是设置比例模式，假如用户调整了4：3或者16:9，切换信号源之后就按照用户设置的比例设置比例模式，设置完成后，启动OAD、CEC、CC、teletext、MTS等服务，其中OAD为使用DTV通道进行电视机升级的功能，CEC是HDMI设备之间的通信，MTS为丽音检测服务，丽音为接近即时的缩扩音频多路广播。然后更新一下频道列表，为频道播放做好准备工作，假如当前信号源是被锁住的，那最后假如需要启动hbbtv的服务，就启动hbbtv服务。
当真正执行打开切换信号源后，只要保存当前的信号源状态，切换信号源就算完成，后面的声音设置，目标信号源重显率，比例模式等功能都可以逐步启动，而且这些服务都比较耗时，为了用户的流畅性操作，所以可以在后台继续执行。
参照图2所示，为现有技术中电视机在进行信号源的切换时，完整的信号切换流程示意图，参照图3所示，为根据本发明提出的方法进行信号源的切换的流程示意图，本发明采用多进程并发的形式进行信号源的切换，将对主进程没有什么影响，但会比较耗时间的服务放到副进程执行，例如，hbbtv服务、SCART接口输出的复位等等，停止字幕、CC、teletext等服务也是一样，不对主要的切换信号源造成影响，但会比较耗时间，这几个功能的执行时间又能够在打开信号源通道之前执行完毕，所以可以并发的执行。经过编写代码验证，现有的电视机信号源切换耗时750ms，而采用本发明的方法，电视机切换信号源只需要200ms，极大的提高了信号源的切换速度，缩短了信号源切换占用的时间。
本实施例提出电视机，在接收到信号源切换指令时，运行第一主进程以关闭当前信号源，运行第二主进程以开启目标信号源，以价格电视机由当前信号源切换至目标信号源，并且，在运行第一主进程的同时，运行关闭当前信号源的第一副进程和第二副进程，因此，在进行信号源的切换时，可以将多个进程同步进行，即将信号源切换的过程中需要执行的各个功能划分为多个进程同步进行，而各个副进程的运行不会对主进程造成影响，因此，可以并发的同步运行，极大的提高了信号源的切换速度，缩短了信号源切换占用的时间，解决了现有的电视机的信号源切换速度慢，占用时间长的技术问题。
基于第一实施例提出本发明电视机的第二实施例。在本实施例中，副进程模块20还用于：在所述主进程模块完成所述目标信号源的通道开启后，设置所述目标信号源的声音配置、信号源重显率和比例模式；启动与所述目标信号源的电视节目播放相关的各个功能，并更新频道配置列表；以及，设置所述目标信号源的锁定，并判断所述目标信号源是否需要开启hbbtv服务，若需要，则开启所述目标信号源的hbbtv服务。
由于对于不同的信号源，在播放电视节目时，设置的功能不尽相同，因此，字幕、CC、teletext等服务的停止可能在打开目标信号源通道之前还没有执行完毕，因此，在检测到目标信号源的信号时，副进程模块20要先判断副进程是否运行完成，若运行完成，则开启所述目标信号源的通道，并保存所述目标信号源的当前状态，否则延时等待直至所述第二副进程执行完成。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (17)

  1. 一种电视机信号源的切换方法，其特征在于，所述电视机信号源的切换方法包括：
    在接收到信号源切换指令时，运行关闭当前信号源的第一主进程，同时运行关闭当前信号源的第一副进程和第二副进程；
    在所述第一主进程运行完成后，运行开启目标信号源的第二主进程以完成电视机信号源的切换，其中，在当前信号源的通道关闭时，判定所述第一主进程运行完成；
    在所述第二主进程运行完成后，运行开启目标信号源的第三副进程，以完成所述目标信号源的各个功能的设置，其中，在完成目标信号源的状态保存后，判定所述第二主进程运行完成；
    所述运行关闭当前信号源的第一主进程的步骤包括：
    关闭当前播放的音频和视频，停止所述当前信号源的检测，并关闭所述当前信号源的通道；
    所述运行关闭当前信号源的第一副进程的步骤包括：
    停止所述当前信号源的hbbtv服务，并且复位SCART接口的输出；
    所述电视机信号源的切换方法还包括步骤：
    在停止所述当前信号源的检测完成后，开始运行所述第二副进程；
    所述运行关闭当前信号源的第二副进程的步骤包括：
    停止与所述当前信号源的节目播放相关的各个功能以完成所述第二副进程的运行；
    所述运行开启目标信号源的第二主进程的步骤包括：
    检测所述目标信号源的信号；
    在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态；
    所述电视机信号源的切换方法还包括步骤：
    在所述目标信号源的通道开启完成后，开始运行所述第三副进程；
    所述运行所述第三副进程的步骤包括：
    设置所述目标信号源的声音配置、信号源重显率和比例模式；
    启动与所述目标信号源的电视节目播放相关的各个功能，并更新频道配置列表；
    设置所述目标信号源的锁定，并判断所述目标信号源是否需要开启hbbtv服务，若需要，则开启所述目标信号源的hbbtv服务。
  2. 一种电视机信号源的切换方法，其特征在于，所述电视机信号源的切换方法包括：
    在接收到信号源切换指令时，运行关闭当前信号源的第一主进程，同时运行关闭当前信号源的第一副进程和第二副进程；
    在所述第一主进程运行完成后，运行开启目标信号源的第二主进程以完成电视机信号源的切换，其中，在当前信号源的通道关闭时，判定所述第一主进程运行完成。
  3. 根据权利要求2所述的电视机信号源的切换方法，其特征在于，所述在所述第一主进程运行完成后，开始运行开启目标信号源的第二主进程以完成电视机信号源的切换的步骤之后，所述电视机信号源的切换方法还包括步骤：
    在所述第二主进程运行完成后，运行开启目标信号源的第三副进程，以完成所述目标信号源的各个功能的设置，其中，在完成目标信号源的状态保存后，判定所述第二主进程运行完成。
  4. 根据权利要求2所述的电视机信号源的切换方法，其特征在于，所述运行关闭当前信号源的第一主进程的步骤包括：
    关闭当前播放的音频和视频，停止所述当前信号源的检测，并关闭所述当前信号源的通道；
    所述运行关闭当前信号源的第一副进程的步骤包括：
    停止所述当前信号源的hbbtv服务，并且复位SCART接口的输出；
    所述电视机信号源的切换方法还包括步骤：
    在停止所述当前信号源的检测完成后，开始运行所述第二副进程；
    所述运行关闭当前信号源的第二副进程的步骤包括：
    停止与所述当前信号源的节目播放相关的各个功能以完成所述第二副进程的运行。
  5. 根据权利要求3所述的电视机信号源的切换方法，其特征在于，所述运行关闭当前信号源的第一主进程的步骤包括：
    关闭当前播放的音频和视频，停止所述当前信号源的检测，并关闭所述当前信号源的通道；
    所述运行关闭当前信号源的第一副进程的步骤包括：
    停止所述当前信号源的hbbtv服务，并且复位SCART接口的输出；
    所述电视机信号源的切换方法还包括步骤：
    在停止所述当前信号源的检测完成后，开始运行所述第二副进程；
    所述运行关闭当前信号源的第二副进程的步骤包括：
    停止与所述当前信号源的节目播放相关的各个功能以完成所述第二副进程的运行。
  6. 根据权利要求3所述的电视机信号源的切换方法，其特征在于，所述运行开启目标信号源的第二主进程的步骤包括：
    检测所述目标信号源的信号；
    在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态。
  7. 根据权利要求4所述的电视机信号源的切换方法，其特征在于，所述运行开启目标信号源的第二主进程的步骤包括：
    检测所述目标信号源的信号；
    在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态。
  8. 根据权利要求5所述的电视机信号源的切换方法，其特征在于，所述运行开启目标信号源的第二主进程的步骤包括：
    检测所述目标信号源的信号；
    在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态。
  9. 根据权利要求6所述的电视机信号源的切换方法，其特征在于，所述电视机信号源的切换方法还包括步骤：
    在所述目标信号源的通道开启完成后，开始运行所述第三副进程；
    所述运行所述第三副进程的步骤包括：
    设置所述目标信号源的声音配置、信号源重显率和比例模式；
    启动与所述目标信号源的电视节目播放相关的各个功能，并更新频道配置列表；
    设置所述目标信号源的锁定，并判断所述目标信号源是否需要开启hbbtv服务，若需要，则开启所述目标信号源的hbbtv服务。
  10. 一种电视机，其特征在于，所述电视机包括：
    主进程模块，用于在接收到信号源切换指令时，运行关闭当前信号源的第一主进程；
    副进程模块，用于在运行所述第一主进程的同时，运行关闭当前信号源的第一副进程和第二副进程；
    所述主进程模块还用于：在所述第一主进程运行完成后，运行开启目标信号源的第二主进程以完成电视机信号源的切换，其中，在当前信号源的通道关闭时，判定所述第一主进程运行完成。
  11. 根据权利要求10所述的电视机，其特征在于，所述副进程模块还用于：在所述第二主进程运行完成后，运行开启目标信号源的第三副进程，以完成所述目标信号源的各个功能的设置，其中，在完成目标信号源的状态保存后，判定所述第二主进程运行完成。
  12. 根据权利要求10所述的电视机，其特征在于，所述主进程模块运行关闭当前信号源的第一主进程包括：关闭当前播放的音频和视频，停止所述当前信号源的检测，并关闭所述当前信号源的通道；
    所述副进程模块运行关闭当前信号源的第一副进程的步骤包括：停止所述当前信号源的hbbtv服务，并且复位SCART接口的输出；以及
    所述副进程模块在所述主进程模块停止所述当前信号源的检测完成后，开始运行所述第二副进程；所述副进程模块运行关闭当前信号源的第二副进程的步骤包括：
    停止与所述当前信号源的节目播放相关的各个功能以完成所述第二副进程的运行。
  13. 根据权利要求11所述的电视机，其特征在于，所述主进程模块运行关闭当前信号源的第一主进程包括：关闭当前播放的音频和视频，停止所述当前信号源的检测，并关闭所述当前信号源的通道；
    所述副进程模块运行关闭当前信号源的第一副进程的步骤包括：停止所述当前信号源的hbbtv服务，并且复位SCART接口的输出；以及
    所述副进程模块在所述主进程模块停止所述当前信号源的检测完成后，开始运行所述第二副进程；所述副进程模块运行关闭当前信号源的第二副进程的步骤包括：
    停止与所述当前信号源的节目播放相关的各个功能以完成所述第二副进程的运行。
  14. 根据权利要求11所述的电视机，其特征在于，所述主进程模块运行开启目标信号源的第二主进程以完成电视机信号源的切换的步骤包括：
    检测所述目标信号源的信号；以及，
    在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态。
  15. 根据权利要求12所述的电视机，其特征在于，所述主进程模块运行开启目标信号源的第二主进程以完成电视机信号源的切换的步骤包括：
    检测所述目标信号源的信号；以及，
    在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态。
  16. 根据权利要求13所述的电视机，其特征在于，所述主进程模块运行开启目标信号源的第二主进程以完成电视机信号源的切换的步骤包括：
    检测所述目标信号源的信号；以及，
    在检测到所述目标信号源的信号时，开启所述目标信号源的通道，并保存所述目标信号源的当前状态。
  17. 根据权利要求14所述的电视机，其特征在于，所述副进程模块运行所述第三副进程的步骤包括：
    在所述主进程模块完成所述目标信号源的通道开启后，设置所述目标信号源的声音配置、信号源重显率和比例模式；
    启动与所述目标信号源的电视节目播放相关的各个功能，并更新频道配置列表；以及，
    设置所述目标信号源的锁定，并判断所述目标信号源是否需要开启hbbtv服务，若需要，则开启所述目标信号源的hbbtv服务。
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