CN114390232A - Method and system for simulating television function expansion - Google Patents
Method and system for simulating television function expansion Download PDFInfo
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- CN114390232A CN114390232A CN202210291797.XA CN202210291797A CN114390232A CN 114390232 A CN114390232 A CN 114390232A CN 202210291797 A CN202210291797 A CN 202210291797A CN 114390232 A CN114390232 A CN 114390232A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention provides a method and a system for simulating the expansion of television functions, which relate to the field of signal transmission and comprise the following steps: monitoring an analog signal input interface of the analog television in real time by using a third-party auxiliary device; generating a characteristic signal at an analog signal input interface through channel selection control change of an analog television; the third-party auxiliary device controls or changes the wireless analog signal which flows through the third-party auxiliary device and is transmitted to the analog signal input interface of the analog television based on the characteristic signal. The method and the system have the advantages that on the basis of keeping use and not changing hardware of the analog television, the analog signal input interface of the analog television is monitored through the third-party auxiliary device, the requirement of a user is sensed by utilizing the signal change condition generated on the analog signal input interface when the analog television selects the channel, the personalized customization requirement of the user is realized, and the use convenience is good.
Description
Technical Field
The invention relates to the field of signal transmission sources, in particular to a method and a system for simulating the expansion of television functions.
Background
In the aspect of searching for analog signals of a television, the core logic of the method is to search for the best frequency point with signals and memorize the frequency point, and when a user selects a channel, the control equipment actually acquires the analog wireless signals according to the corresponding frequency point. In practical implementation, because standards adopted by different countries are inconsistent, certain differences exist in practical implementation, for example, the channel searching principle of the domestic television in China is that channel searching starts at the minimum frequency of a channel, and the channel searching is automatically ended when the maximum frequency is reached or a program number exceeds 200; the American machine has fixed channel frequency points, before searching the channels, a user needs to select whether the broadcasting mode is AIR or CABLE, the channel searching is started from the minimum channel number (AIR: 2, CABLE: 1) of the current broadcasting mode, and the channel searching is automatically finished after the maximum channel number (AIR: 69, CABLE: 125) of the current broadcasting mode is searched; the european machine requires the user to select a country or region, start channel search from channel 1 at the minimum frequency, and automatically end channel search when the maximum frequency is reached or the program number exceeds 200.
Since the radio broadcast frequency band is a limited resource, the radio of each band is divided according to the standard established by the state, and the expansion of the television frequency band is difficult to be carried out under the prior art, which causes the limitation of the number of channels and does not utilize the personalized requirements of users.
Disclosure of Invention
In order to meet the personalized requirements of users, the invention provides a method and a system for function expansion of an analog television, on the basis of keeping use and not changing analog television hardware, the analog signal input interface of the analog television is monitored by a third-party auxiliary device, the requirements of the users are sensed by utilizing the signal change condition generated on the analog signal input interface when the analog television selects channels, and the wireless analog signals transmitted to the analog signal input interface are controlled, so that the personalized customization requirements of the users can be realized, and the system has good use convenience.
Correspondingly, the invention provides a method for analog television function extension, which comprises the following steps:
the wireless analog signal receiver transmits a wireless analog signal to an analog signal input interface of the analog television after passing through the third-party auxiliary device;
monitoring an analog signal input interface of the analog television in real time by using a third-party auxiliary device;
generating a characteristic signal at an analog signal input interface of the analog television through channel selection control change of the analog television;
and the third-party auxiliary device controls or changes a wireless analog signal which flows through the third-party auxiliary device and is transmitted to an analog signal input interface of the analog television based on the characteristic signal.
In an optional embodiment, the monitoring, in real time, an analog signal input interface of the analog television by using a third-party auxiliary device includes:
and monitoring the resonance frequency in the analog signal input interface of the analog television in real time by utilizing a third-party auxiliary device.
In an optional embodiment, the generating a characteristic signal at an analog signal input interface of the analog tv by channel selection control change of the analog tv comprises:
a user switches the playing channel of the analog television based on one preset channel as a basis and one of a plurality of preset change rules in unit time according to the requirement;
according to the switching of the playing channel of the analog television, the resonance frequency of the analog signal input interface generates corresponding change;
and the sum of the changes of the resonance frequency is the characteristic signal corresponding to the change rule.
In an optional embodiment, the third-party auxiliary device controlling, based on the characteristic signal, a wireless analog signal flowing through the third-party auxiliary device and being transmitted to an analog signal input interface of an analog television includes:
and the third-party auxiliary device acquires additional channel information from a third-party signal source based on the characteristic signal and replaces the wireless analog signal corresponding to the preset channel with the additional channel information.
In an optional embodiment, the third-party auxiliary device obtaining extra channel information from a third-party signal source based on the characteristic signal includes:
the third-party auxiliary device sends the characteristic signal to the third-party signal source;
and the third-party signal source retrieves the database according to the characteristic signal to obtain the extra channel information and returns the extra channel information to the third-party auxiliary device.
In an optional implementation manner, the replacing the wireless analog signal corresponding to the predetermined channel with the extra channel information includes:
and when the third-party auxiliary device monitors that the resonance frequency of the analog signal input interface is the preset channel, cutting off the signal connection between the wireless analog signal receiver and the analog signal input interface, and loading the additional channel information onto the analog signal input interface according to the resonance frequency of the preset channel.
In an optional embodiment, one of the plurality of variation rules is:
taking a channel with the channel number difference value of the preset channel as a preset numerical value as a parameter channel, and switching the preset frequency between the preset channel and the parameter channel;
the number of the preset numerical values is more than one.
In an optional embodiment, one of the plurality of variation rules is:
and the channel number of the channel is used for representing the control code, and the playing channel of the analog television is switched based on the ordered combination of the codes.
Correspondingly, the invention also provides a method for the analog television function extension.
In summary, the present invention provides a method and a system for extending the function of an analog tv, which utilize the corresponding relationship between the analog tv broadcast channel and the analog signal input interface signal to realize the function of the analog tv expressing to the outside in the limited operation space of the analog tv without changing the existing analog tv and wireless analog signal receiver; through the guidance of the user, the user can reflect the requirements of the user on the operation of the playing channel of the analog television; the analog television can be used for acquiring a characteristic signal generated based on channel switching by a third-party auxiliary device or a third-party signal source, so that the external equipment can intelligently sense the requirement of a user, and the function required by the user is realized; similarly, the third-party auxiliary device can sense the real-time playing channel of the analog television by utilizing the corresponding relation between the analog television playing channel and the signals of the analog signal input interface, and can realize the expansion of the analog television function by modifying and replacing the wireless analog signals according to the requirements of users, thereby having good use convenience.
Drawings
Fig. 1 is a system configuration diagram for analog tv function extension according to an embodiment of the present invention.
Fig. 2 is a flowchart of a method for extending analog tv functions according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Specifically, before describing the method for extending the analog television function according to the embodiment of the present invention, the embodiment of the present invention first briefly describes an application carrier (system) of the method for extending the analog television function, so as to facilitate understanding.
Specifically, taking a domestic television as an example, based on standard regulations, the domestic television uses a PAL-D/K system, which is different from the current external set-top box, and in the national manufacturing standard of analog televisions, the analog television needs to be internally provided with corresponding demodulation equipment.
The wireless analog signal receiver refers to a device similar to a radar structure, which is mainly used for collecting wireless signals in an environment.
Generally, the analog signal input interface of the analog television is connected with the wireless analog signal receiver only through one connecting wire, and the analog television can directly play corresponding program contents through channel selection.
Specifically, the principle of analog television channel selection is that a resonant circuit is utilized to receive and play after oscillating and amplifying corresponding signals in a frequency point (frequency band) selection mode. Generally, the resonant circuit is connected with the wireless analog signal receiver without blocking, and because the resonant circuit amplifies the signal of the selected frequency band, correspondingly, the amplified signal correspondingly reacts at the analog signal input interface, and the current channel selection condition of the analog television can be monitored on the analog signal input interface through the screening of parameters such as frequency amplitude and the like.
Therefore, the function of expanding the analog television function can be realized by introducing a third-party auxiliary device to monitor the analog signal input interface.
Fig. 1 shows a system structure diagram for analog television function extension according to an embodiment of the present invention, and basically, the system for analog television function extension according to an embodiment of the present invention comprises:
the analog television comprises a most basic analog signal input interface, wherein the analog signal input interface is connected with a resonant circuit in a signal processing end module in the analog television, a signal processed by the signal processing end module is played through a playing end module, and the analog signal input interface is used for inputting a wireless analog signal;
the wireless analog signal receiver can be an antenna and other structures and is used for capturing radio waves in the environment;
a third party signal source for providing additional channel content;
the third-party auxiliary device is structurally characterized in that the third-party auxiliary device is provided with a first output port for wireless analog signal output (used for being connected with the analog signal input interface), a first input port for wireless analog signal input (used for being connected with the wireless analog signal receiver), and a second input port for signal input (used for being connected with a third-party signal source); in essence, the third-party auxiliary device is a microcomputer system, and the configuration expansion of hardware and software can be performed according to the required software function, the present invention does not additionally describe the specific implementation manner thereof, and any equipment device capable of implementing the function of the third-party auxiliary device in the method for simulating the television function expansion described in the embodiment of the present invention belongs to the protection scope of the third-party auxiliary device in the embodiment of the present invention;
and the third-party signal source is used for providing additional data for the analog television, which is different from the wireless analog signal which can be received by the wireless analog signal receiver.
Specifically, based on the system for analog television function extension, the embodiment of the present invention provides a method for analog television function extension.
Fig. 2 is a flowchart illustrating a method for extending analog tv functions according to an embodiment of the present invention, where the method for extending analog tv functions according to an embodiment of the present invention includes:
s101: the wireless analog signal receiver transmits a wireless analog signal to an analog signal input interface of the analog television after passing through the third-party auxiliary device;
in the embodiment of the present invention, a third-party auxiliary device is added between the wireless analog signal receiver and the analog television, so that on one hand, the signal change condition of the analog signal input interface is monitored by the third-party auxiliary device, and on the other hand, the third-party auxiliary device is used to control the signal transmitted between the wireless analog signal receiver and the analog television by the wireless analog signal receiver.
S102: monitoring an analog signal input interface of the analog television in real time by using a third-party auxiliary device;
basically, the channel selection principle of the analog television is that radio wave data near a corresponding frequency point is oscillated and amplified by the resonant circuit through frequency point data corresponding to a channel program and by adjusting the resonant circuit, and complicated radio waves are filtered by the resonant circuit to obtain a required analog television signal; because there is generally no data isolation structure between the resonant circuit and the wireless analog signal receiver, correspondingly, the data oscillated and amplified by the resonant circuit will return to the data line from the analog signal input interface of the analog television.
Therefore, when the analog television is selected, the signal of the analog signal input interface can generate corresponding change, and the channel selection operation of the analog television can be sensed by monitoring the signal condition of the analog signal input interface. It should be noted that the signal change condition of the analog signal input interface of the analog television caused by the channel selection by the user is one of the properties of the analog television, and the user can realize the change without modifying the existing analog television.
Therefore, one of the functions of the third-party auxiliary device is to monitor the signal change condition of the analog signal input interface, and in the embodiment of the present invention, the function of the third-party auxiliary device monitoring the signal change condition of the analog signal input interface includes:
sensing the demand which a user wants to express through the signal change condition;
and sensing the channel selection of the user through the signal change condition, and replacing the playing information of the corresponding channel with the information required by the user.
Specifically, generally, new playing content needs to be supplemented, a third-party auxiliary device needs to be used in cooperation with a third-party signal source, the most basic function of the third-party signal source is to provide additional playing information for a user, and the additional third-party signal source can also be responsible for functions of signal processing, analysis and the like.
The third-party auxiliary device can be used for processing related data processing contents by the third-party signal source and only used for carrying out basic packaging transmission on the signals, so that the third-party auxiliary device can be adapted to various third-party signal sources.
Specifically, in the embodiment of the present invention, the third-party auxiliary device continuously monitors the resonant frequency of the analog signal input interface of the analog television and transmits the resonant frequency to the third-party signal source in real time.
S103: generating a characteristic signal at an analog signal input interface of the analog television through channel selection control change of the analog television;
specifically, when a user selects a channel, each playing channel generates corresponding signal characteristics at the analog signal input interface, and the data can be identified and associated with different functions only if the data has the characteristics.
Specifically, in consideration of convenience of monitoring, the monitoring, in real time, of the analog signal input interface of the analog television by using the third-party auxiliary device includes:
and monitoring the resonance frequency in the analog signal input interface of the analog television in real time by utilizing a third-party auxiliary device.
Specifically, the existence of the resonant frequency can amplify the amplitude of the signal of the corresponding frequency, thereby playing a role in signal screening.
Basically, the third party auxiliary device or the third party signal source has a specific control table, on which a plurality of operation instructions are provided to inform the user how to implement the required functions through the changing operation of channel selection.
Basically, from the needs of the user, if the user wants to replace the broadcast content of one of the channels of the current analog tv with another channel (not limited to the channel in the signal received by the wireless analog signal receiver), the user switches the broadcast channel of the analog tv based on one of several preset change rules in unit time based on a predetermined channel, the switching of the broadcast channel generates a change of the signal at the analog signal input interface, that is, the resonant frequency of the analog signal input interface generates a corresponding change according to the switching of the broadcast channel of the analog tv, the sum of the changes of the resonant frequency generates a (one-segment) feature signal corresponding to the change rule, and the limited operation space of the current analog tv can be used for expressing a (one-segment) feature signal to the third-party auxiliary device and/or the third-party signal source by using and identifying the feature signal The user's own needs.
Specifically, regarding the design of the variation rule, the embodiment of the present invention provides two feasible implementation manners for reference:
one type of change rule in the plurality of change rules is as follows:
taking a channel with the channel number difference value of the preset channel as a preset numerical value as a parameter channel, and switching the preset frequency between the preset channel and the parameter channel; the number of the preset numerical values is more than one.
Specifically, for example, the predetermined channel is 1, the parameter channel is 2, and in a unit time, the user switches between 1 and 2 operating the analog television from the predetermined channel 1; optionally, the user performs the operation after staying at the predetermined channel 1 for a certain time, so as to avoid a confusion situation. For the third party auxiliary device and/or the third party signal source, the predetermined channel 1 is a channel that the user needs to replace, and the difference between the channel number of the parameter channel 2 and the channel number of the predetermined channel 1 is 1, then the program content that the user needs to replace is the first set of program in the third party signal source.
One type of change rule in the plurality of change rules is as follows:
and the channel number of the channel is used for representing the control code, and the playing channel of the analog television is switched based on the ordered combination of the codes.
Specifically, according to the analog television channel searching rule, different channels have their own channel numbers, the channel numbers can be represented as a number (representing symbol), different instructions can be expressed through the combination of the numbers, and a user can express the own requirements of the user by operating the playing channel of the analog television according to the instructions preset on the instruction list.
S104: and the third-party auxiliary device controls or changes a wireless analog signal which flows through the third-party auxiliary device and is transmitted to an analog signal input interface of the analog television based on the characteristic signal.
After the third-party auxiliary device and/or the third-party signal source senses the characteristic signal, the third-party auxiliary device and/or the third-party signal source can execute the operation of the corresponding function according to the association between the characteristic signal and the function. Specifically, the third-party auxiliary device is arranged between the wireless analog signal receiver and the analog signal input interface of the analog television, and the functional functions of the third-party auxiliary device can be mainly focused on three aspects of modification, replacement and reinforcement of the wireless analog signal.
Specifically, the modification of the wireless analog signal mainly refers to the modification of the content of the television channel, such as modifying the Chinese dubbing to the foreign language dubbing and other local content modifications
Specifically, the replacement of the wireless analog signal mainly means to replace the entire broadcast content of a specific television channel.
Specifically, the enhancement of the wireless analog signal is mainly to enhance the deficiency (such as definition, code rate, etc.) of the existing wireless analog signal.
It should be noted that the enhancement of the wireless analog signal also belongs to the modification of the wireless analog signal.
For alternative content of wireless analog signals, the following embodiments are provided for reference in the embodiments of the present invention.
Specifically, the third-party auxiliary device controls the wireless analog signal flowing through the third-party auxiliary device and transmitted to the analog signal input interface of the analog television based on the characteristic signal, and the wireless analog signal includes: and the third-party auxiliary device acquires additional channel information from a third-party signal source based on the characteristic signal and replaces the wireless analog signal corresponding to the preset channel with the additional channel information.
Firstly, the third-party auxiliary device acquiring extra channel information from a third-party signal source based on the characteristic signal comprises:
the third-party auxiliary device sends the characteristic signal to the third-party signal source;
and the third-party signal source retrieves the database according to the characteristic signal to obtain the extra channel information and returns the extra channel information to the third-party auxiliary device.
The third-party auxiliary device and/or the third-party signal source need to sense the functional requirements of the user according to the characteristic signals, retrieve the database according to the characteristic signals to obtain extra channel information required by the user, and return the extra channel information to the third-party signal source.
Then, the replacing the wireless analog signal corresponding to the predetermined channel with the extra channel information includes:
and when the third-party auxiliary device monitors that the resonance frequency of the analog signal input interface is the preset channel, cutting off the signal connection between the wireless analog signal receiver and the analog signal input interface, and loading the additional channel information onto the analog signal input interface according to the resonance frequency of the preset channel.
Specifically, in the feature signal, according to the foregoing description, a user needs to replace the broadcast content of a predetermined channel with the required extra channel information, when a third-party auxiliary device monitors that the resonance frequency of the analog signal input interface is the predetermined channel, in order to avoid signal interference, the third-party auxiliary device needs to cut off the signal connection between the wireless analog signal receiver and the analog signal input interface, and then load and transmit the extra channel information to the analog signal input interface by using a carrier as a template in a similar manner of radio wave signal generation, and for an analog television, it also receives a wireless analog signal near a corresponding frequency point, so as to perform normal broadcast.
Correspondingly, the embodiment of the invention also provides a system for the function expansion of the analog television, which is mainly constructed by depending on a third-party auxiliary device and a third-party signal source, wherein the analog television and the wireless analog signal receiver are both of the existing structures; on the basis of the system for analog television function extension, the extension can be performed appropriately according to the required functions, and the embodiments of the present invention are not described one by one.
To sum up, the embodiment of the present invention provides a method and a system for extending the function of an analog television, which utilize the corresponding relationship between the analog television broadcast channel and the signal of the analog signal input interface to realize the function of externally expressing the analog television in the limited operation space of the analog television on the premise of not changing the structures of the existing analog television and wireless analog signal receiver; through the guidance of the user, the user can reflect the requirements of the user on the operation of the playing channel of the analog television; the analog television can be used for acquiring a characteristic signal generated based on channel switching by a third-party auxiliary device or a third-party signal source, so that the external equipment can intelligently sense the requirement of a user, and the function required by the user is realized; similarly, the third-party auxiliary device can sense the real-time playing channel of the analog television by utilizing the corresponding relation between the analog television playing channel and the signals of the analog signal input interface, and can realize the expansion of the analog television function by modifying and replacing the wireless analog signals according to the requirements of users, thereby having good use convenience.
The method and system for analog tv function extension provided by the embodiment of the present invention are described in detail above, and the principle and implementation of the present invention are explained in this document by applying specific examples, and the description of the above embodiments is only used to help understanding the method and core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. A method for simulating television feature extensions, comprising:
the wireless analog signal receiver transmits a wireless analog signal to an analog signal input interface of the analog television after passing through the third-party auxiliary device;
monitoring an analog signal input interface of the analog television in real time by using a third-party auxiliary device;
generating a characteristic signal at an analog signal input interface of the analog television through channel selection control change of the analog television;
and the third-party auxiliary device controls or changes a wireless analog signal which flows through the third-party auxiliary device and is transmitted to an analog signal input interface of the analog television based on the characteristic signal.
2. The method for simulating television functionality expansion according to claim 1, wherein the real-time monitoring of the analog signal input interface of the analog television using the third party auxiliary device comprises:
and monitoring the resonance frequency in the analog signal input interface of the analog television in real time by utilizing a third-party auxiliary device.
3. The method for analog television function extension of claim 2, wherein said generating a feature signal at an analog signal input interface of said analog television by channel selection control changes to said analog television comprises:
a user switches the playing channel of the analog television based on one preset channel as a basis and one of a plurality of preset change rules in unit time according to the requirement;
according to the switching of the playing channel of the analog television, the resonance frequency of the analog signal input interface generates corresponding change;
and the sum of the changes of the resonance frequency is the characteristic signal corresponding to the change rule.
4. The method of claim 3, wherein the third party auxiliary device controlling the wireless analog signal flowing through the third party auxiliary device and delivered to the analog signal input interface of the analog television based on the characteristic signal comprises:
and the third-party auxiliary device acquires additional channel information from a third-party signal source based on the characteristic signal and replaces the wireless analog signal corresponding to the preset channel with the additional channel information.
5. The method for simulating television functionality expansion of claim 4, wherein the third party auxiliary device obtaining additional channel information from a third party signal source based on the characteristic signal comprises:
the third-party auxiliary device sends the characteristic signal to the third-party signal source;
and the third-party signal source retrieves the database according to the characteristic signal to obtain the extra channel information and returns the extra channel information to the third-party auxiliary device.
6. The method for analog television function expansion of claim 5, wherein the replacing the wireless analog signal corresponding to the predetermined channel with the extra channel information comprises:
and when the third-party auxiliary device monitors that the resonance frequency of the analog signal input interface is the preset channel, cutting off the signal connection between the wireless analog signal receiver and the analog signal input interface, and loading the additional channel information onto the analog signal input interface according to the resonance frequency of the preset channel.
7. The method for simulating television function expansion of claim 3, wherein one of the plurality of variation rules is:
taking a channel with the channel number difference value of the preset channel as a preset numerical value as a parameter channel, and switching the preset frequency between the preset channel and the parameter channel;
the number of the preset numerical values is more than one.
8. The method for simulating television function expansion of claim 3, wherein one of the plurality of variation rules is:
and the channel number of the channel is used for representing the control code, and the playing channel of the analog television is switched based on the ordered combination of the codes.
9. A system for analog television functionality extension, characterized by the method for analog television functionality extension of any of claims 1 to 8.
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