CN108235112B - Frequency modulation channel searching method and device and mobile terminal - Google Patents
Frequency modulation channel searching method and device and mobile terminal Download PDFInfo
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- CN108235112B CN108235112B CN201611199166.6A CN201611199166A CN108235112B CN 108235112 B CN108235112 B CN 108235112B CN 201611199166 A CN201611199166 A CN 201611199166A CN 108235112 B CN108235112 B CN 108235112B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012163 sequencing technique Methods 0.000 claims abstract description 53
- 238000012545 processing Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 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
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
- H04N21/4825—End-user interface for program selection using a list of items to be played back in a given order, e.g. playlists
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- 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
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- 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
- H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
- H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
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- Circuits Of Receivers In General (AREA)
Abstract
The invention provides a frequency modulation channel searching method, a frequency modulation channel searching device and a mobile terminal, wherein the frequency modulation channel searching method comprises the following steps: acquiring real-time signal-to-noise ratios of a plurality of frequency points to be detected within a preset frequency modulation frequency range; judging whether the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio; when the real-time signal-to-noise ratio of the frequency point to be detected is larger than the preset signal-to-noise ratio, determining the frequency point to be detected as a playable frequency point; when a plurality of playable frequency points are available, sequencing the playable frequency points from high to low according to preset signal parameter values; and outputting the sequenced sequence of the sequenced playable frequency points to a display screen. The real-time signal-to-noise ratio of the frequency points to be tested can determine which frequency points can be played, and after the frequency points are determined to be played, the frequency points are sequenced according to preset signal parameters. Through the sequenced playable frequency points displayed on the display screen, the user can intuitively know which frequency point the signal quality of the radio station program is good, and the listening experience of the user is improved.
Description
Technical Field
The invention relates to the field of frequency modulation channel searching, in particular to a frequency modulation channel searching method, a frequency modulation channel searching device and a mobile terminal.
Background
With the development of mobile communication and the continuous improvement of living standard of people, the use of mobile phones is more and more popular, and the mobile phones become indispensable communication tools in the life of people. The mobile phone in the prior art has more and more functions, and has functions of music playing, video playing and FM (frequency modulation) radio besides the function of conversation.
The FM radio function of the mobile phone is that FM is carried out through predetermined FM radio frequency, the display of radio station programs is carried out from low to high according to the sequence of frequency at present, and listeners cannot judge the signal quality of the radio station when in use, that is, when in use, whether the signal quality of the radio station is good can be judged only by carrying out trial listening and playing on each radio station program.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a method, an apparatus and a mobile terminal for searching a radio station by frequency modulation, so as to determine the signal quality of the radio station before playing, and improve the listening experience of a user.
In order to solve the above technical problem, an embodiment of the present invention provides a frequency modulation channel searching method, including:
acquiring real-time signal-to-noise ratios of a plurality of frequency points to be detected within a preset frequency modulation frequency range;
judging whether the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio;
when the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio, determining the frequency point to be detected as a playable frequency point;
when the number of the playable frequency points is multiple, sequencing the multiple playable frequency points from high to low according to preset signal parameter values;
and outputting the sequenced sequence of the sequenced playable frequency points to a display screen.
Preferably, the step of sorting the plurality of playable frequency points from high to low according to preset signal parameter values includes:
judging whether playable frequency points with the same signal-to-noise ratio exist or not;
and when the playable frequency points with the same signal-to-noise ratio do not exist, sequencing the playable frequency points from high to low according to the signal-to-noise ratio.
Preferably, the step of sorting the plurality of playable frequency points from high to low according to preset signal parameter values further includes:
when playable frequency points with the same signal-to-noise ratio exist, signal strength values of a plurality of playable frequency points with the same signal-to-noise ratio are obtained;
sequencing a plurality of playable frequency points with the same signal-to-noise ratio value from high to low in signal strength value, and sequencing a plurality of playable frequency points with different signal-to-noise ratios from high to low in signal-to-noise ratio value;
and inserting the sequencing sequence of the playable frequency points sequenced from high to low according to the signal intensity value into the sequencing sequence of the playable frequency points sequenced from high to low according to the signal-to-noise ratio value.
Preferably, after the step of determining whether the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio, the method further includes:
and deleting the frequency point to be detected with the real-time signal-to-noise ratio smaller than the preset signal-to-noise ratio when the real-time signal-to-noise ratio of the frequency point to be detected is smaller than the preset signal-to-noise ratio.
Preferably, the value of the preset signal-to-noise ratio is 7 db.
According to another aspect of the present invention, the present invention further provides a frequency modulation channel searching apparatus, including:
the acquisition module is used for acquiring real-time signal-to-noise ratios of a plurality of frequency points to be detected within a preset frequency modulation frequency range;
the judging module is used for judging whether the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio;
the determining module is used for determining the frequency point to be detected as a playable frequency point when the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio;
the sequencing module is used for sequencing the plurality of the playable frequency points from high to low according to preset signal parameter values when the playable frequency points are multiple;
and the output module is used for outputting the sequenced sequence of the sequenced playable frequency points to a display screen.
Preferably, the sorting module comprises:
the judging unit is used for judging whether the playable frequency points with the same signal-to-noise ratio exist or not;
the first sequencing unit is used for sequencing the plurality of playable frequency points from high to low according to the signal-to-noise ratio when the playable frequency points with the same signal-to-noise ratio do not exist.
Preferably, the sorting module further comprises:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring the signal strength values of a plurality of playable frequency points with the same signal-to-noise ratio when the playable frequency points with the same signal-to-noise ratio exist;
the second sequencing unit is used for sequencing the plurality of the playable frequency points with the same signal-to-noise ratio from high to low in signal strength value and sequencing the plurality of the playable frequency points with different signal-to-noise ratios from high to low in signal-to-noise ratio value;
and the inserting unit is used for inserting the sequencing sequence of the playable frequency points sequenced from high to low according to the signal intensity value into the sequencing sequence of the playable frequency points sequenced from high to low according to the signal-to-noise ratio value.
Preferably, the frequency modulation channel searching apparatus further comprises:
and the deleting module is used for deleting the frequency point to be detected with the real-time signal-to-noise ratio smaller than the preset signal-to-noise ratio when the real-time signal-to-noise ratio of the frequency point to be detected is smaller than the preset signal-to-noise ratio.
Preferably, the value of the preset signal-to-noise ratio is 7 db.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes the above frequency modulation channel searching apparatus.
Compared with the prior art, the frequency modulation channel searching method provided by the embodiment of the invention at least has the following beneficial effects:
the frequency points can be determined to be played through the real-time signal-to-noise ratio of the frequency points to be detected, and when the frequency points are determined to be played, the frequency points are sequenced according to preset signal parameters. When the user uses, through the playable frequency point of the sequencing that shows on the display screen, can audio-visually know which frequency point's radio station program's signal quality is good, has improved user's listening experience.
Drawings
Fig. 1 is a schematic structural diagram of a frequency modulation channel searching method according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a frequency modulation channel searching method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a frequency modulation channel searching method according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a frequency modulation channel searching method according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a frequency modulation channel searching apparatus according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a frequency modulation channel searching apparatus according to a fifth embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
Referring to fig. 1, a first embodiment of the present invention provides a frequency modulation channel searching method, including:
103, when the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio, determining the frequency point to be detected as a playable frequency point;
104, when a plurality of playable frequency points are available, sequencing the plurality of playable frequency points from high to low according to preset signal parameter values;
and 105, outputting the sequenced sequence of the sequenced frequency points capable of being played to a display screen.
Specifically, the value of the above-mentioned predetermined signal-to-noise ratio is 7 db. And when the signal-to-noise ratio of the frequency point to be detected is greater than 7db, the signal quality of the frequency point to be detected is considered to be better.
In the frequency modulation channel searching method provided in the first embodiment of the present invention, whether a searched frequency point to be detected is a playable frequency point is determined according to a signal-to-noise ratio, and a higher signal-to-noise ratio of the frequency point to be detected indicates that fewer noise will be generated when the frequency point to be detected is played. After the playable frequency points are determined, the playable frequency points are sequenced, and through the sequenced sequencing sequence, a user can conveniently distinguish radio programs with good signal quality when using the radio programs, so that the listening experience of the user is improved.
Referring to fig. 2, a second embodiment of the present invention provides a frequency modulation channel searching method, including:
and step 206, outputting the sequenced sequence of the sequenced frequency points capable of being played to a display screen.
Compared with the first embodiment, the second embodiment of the invention increases the condition for sequencing the playable frequency points, and when the frequency points with the same signal-to-noise ratio do not exist in the plurality of playable frequency points, the playable frequency points are sequenced from high to low according to the signal-to-noise ratio, and the radio station programs at the preorder position displayed on the display screen show that the playable frequency points have higher signal-to-noise ratio and less noise. When a user selects a radio station program, the user can select the radio station program quickly without repeated tests, and the listening experience of the user is improved.
Referring to fig. 3, a third embodiment of the present invention provides a frequency modulation channel searching method, including:
301, acquiring real-time signal-to-noise ratios of a plurality of frequency points to be detected within a preset frequency modulation frequency range;
305, when no playable frequency point with the same signal-to-noise ratio exists, sequencing a plurality of playable frequency points from high to low according to the signal-to-noise ratio;
308, inserting the sequencing sequence of the playable frequency points sequenced from high to low according to the signal intensity value into the sequencing sequence of the playable frequency points sequenced from high to low according to the signal-to-noise ratio value;
and 309, outputting the sequencing sequence of the plurality of playable frequency points sequenced in the step 305 or the step 308 to a display screen.
In the third embodiment of the present invention, on the basis of the second embodiment, a sorting manner when playable frequency points with the same signal-to-noise ratio exist in a plurality of playable frequency points is added, and the playable frequency points with the same signal-to-noise ratio are sorted by using the signal strength values, so that the problem of sorting the playable frequency points with the same signal-to-noise ratio is solved.
The method for frequency modulation mobile phone in the third embodiment of the present invention is illustrated below, assuming that 20 frequency points to be measured are obtained in step 301, after the determination manner in step 302 is executed, the determined playable frequency points are 17, at this time, the signal-to-noise ratios of the 17 playable frequency points are compared, and it is determined whether there are playable frequency points with the same signal-to-noise ratio, assuming that there are 3 playable frequency points with the same signal-to-noise ratio, the playable frequency points with the same signal-to-noise ratio are sorted by signal strength value from high to low, and the remaining 14 playable frequency points with different signal-to-noise ratios are sorted by signal-to-noise ratio value from high to low; assuming that the signal-to-noise ratio of the playable frequency points with the same signal-to-noise ratio is 10db, the signal-to-noise ratio of the playable frequency points with different signal-to-noise ratios and the two closest signal-to-noise ratios of 10db are 9.8db and 10.5db, inserting the sorted sequence of the playable frequency points with the same signal-to-noise ratio into the playable frequency points with the signal-to-noise ratio of 9.8db and the playable frequency points with the signal-to-noise ratio of 10.5db in the sorted sequences with different signal-to-noise ratios; and outputting the sorted sorting sequence to a display screen.
In the embodiment of the invention, when the number of the determined playable frequency points is only 1, the playable frequency points are directly output to the display screen.
Referring to fig. 4, a fourth embodiment of the present invention provides a frequency modulation channel searching method, including:
404, when a plurality of playable frequency points are available, sequencing the plurality of playable frequency points from high to low according to preset signal parameter values;
and 406, deleting the frequency point to be detected with the real-time signal-to-noise ratio smaller than the preset signal-to-noise ratio when the real-time signal-to-noise ratio of the frequency point to be detected is smaller than the preset signal-to-noise ratio.
In the fourth embodiment of the present invention, on the basis of the first embodiment, a processing manner of the frequency point to be detected having a signal-to-noise ratio smaller than the preset signal-to-noise ratio is added, and when the signal-to-noise ratio is smaller than the preset signal-to-noise ratio, it is determined that the signal quality of the radio program is poor or the radio station corresponding to the frequency point is a false station, and at this time, the frequency point to be detected is deleted, so as to avoid output thereof and inconvenience in use for a user.
Referring to fig. 5, according to another aspect of the present invention, the present invention further provides a frequency modulation channel searching apparatus, including:
the acquisition module is used for acquiring real-time signal-to-noise ratios of a plurality of frequency points to be detected within a preset frequency modulation frequency range;
the judging module is used for judging whether the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio;
the determining module is used for determining the frequency point to be detected as a playable frequency point when the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio;
the sequencing module is used for sequencing the plurality of the playable frequency points from high to low according to preset signal parameter values when the playable frequency points are multiple;
and the output module is used for outputting the sequenced sequence of the sequenced playable frequency points to a display screen.
Referring to fig. 6, preferably, the sorting module includes:
the judging unit is used for judging whether the playable frequency points with the same signal-to-noise ratio exist or not;
the first sequencing unit is used for sequencing the plurality of playable frequency points from high to low according to the signal-to-noise ratio when the playable frequency points with the same signal-to-noise ratio do not exist.
Referring to fig. 6, preferably, the sorting module further includes:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring the signal strength values of a plurality of playable frequency points with the same signal-to-noise ratio when the playable frequency points with the same signal-to-noise ratio exist;
the second sequencing unit is used for sequencing the plurality of the playable frequency points with the same signal-to-noise ratio from high to low in signal strength value and sequencing the plurality of the playable frequency points with different signal-to-noise ratios from high to low in signal-to-noise ratio value;
and the inserting unit is used for inserting the sequencing sequence of the playable frequency points sequenced from high to low according to the signal intensity value into the sequencing sequence of the playable frequency points sequenced from high to low according to the signal-to-noise ratio value.
Referring to fig. 6, preferably, the frequency modulation channel searching apparatus further includes:
and the deleting module is used for deleting the frequency point to be detected with the real-time signal-to-noise ratio smaller than the preset signal-to-noise ratio when the real-time signal-to-noise ratio of the frequency point to be detected is smaller than the preset signal-to-noise ratio.
Preferably, the value of the preset signal-to-noise ratio is 7 db.
The frequency modulation channel searching device provided in the fifth embodiment of the present invention determines whether the searched frequency point to be detected is a playable frequency point or not according to the signal-to-noise ratio, where a higher signal-to-noise ratio of the frequency point to be detected indicates that fewer noise will be generated when the frequency point to be detected is played. After the playable frequency points are determined, the playable frequency points are sequenced, and through the sequenced sequencing sequence, a user can conveniently distinguish radio programs with good signal quality when using the radio programs, so that the listening experience of the user is improved.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes the above frequency modulation channel searching apparatus.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A frequency modulation channel searching method is characterized by comprising the following steps:
acquiring real-time signal-to-noise ratios of a plurality of frequency points to be detected within a preset frequency modulation frequency range;
judging whether the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio;
when the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio, determining the frequency point to be detected as a playable frequency point;
when the number of the playable frequency points is multiple, sequencing the multiple playable frequency points from high to low according to preset signal parameter values;
outputting the sequenced sequence of the sequenced multiple playable frequency points to a display screen;
the step of sequencing the plurality of playable frequency points from high to low according to preset signal parameter values comprises:
judging whether playable frequency points with the same signal-to-noise ratio exist or not;
when the playable frequency points with the same signal-to-noise ratio do not exist, sequencing the playable frequency points from high to low according to the signal-to-noise ratio;
when playable frequency points with the same signal-to-noise ratio exist, signal strength values of a plurality of playable frequency points with the same signal-to-noise ratio are obtained;
sequencing a plurality of playable frequency points with the same signal-to-noise ratio value from high to low in signal strength value, and sequencing a plurality of playable frequency points with different signal-to-noise ratios from high to low in signal-to-noise ratio value;
and inserting the sequencing sequence of the playable frequency points sequenced from high to low according to the signal intensity value into the sequencing sequence of the playable frequency points sequenced from high to low according to the signal-to-noise ratio value.
2. A frequency modulation channel searching method according to claim 1, wherein after the step of determining whether the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio, the method further comprises:
and deleting the frequency point to be detected with the real-time signal-to-noise ratio smaller than the preset signal-to-noise ratio when the real-time signal-to-noise ratio of the frequency point to be detected is smaller than the preset signal-to-noise ratio.
3. A frequency modulated channel searching method as claimed in claim 1, wherein said predetermined signal to noise ratio value is 7 db.
4. The utility model provides a frequency modulation searches for a channel device which characterized in that includes:
the acquisition module is used for acquiring real-time signal-to-noise ratios of a plurality of frequency points to be detected within a preset frequency modulation frequency range;
the judging module is used for judging whether the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio;
the determining module is used for determining the frequency point to be detected as a playable frequency point when the real-time signal-to-noise ratio of the frequency point to be detected is greater than or equal to a preset signal-to-noise ratio;
the sequencing module is used for sequencing the plurality of the playable frequency points from high to low according to preset signal parameter values when the playable frequency points are multiple;
the output module is used for outputting the sequenced sequence of the plurality of playable frequency points to a display screen;
wherein the sorting module comprises:
the judging unit is used for judging whether the playable frequency points with the same signal-to-noise ratio exist or not;
the first sequencing unit is used for sequencing the plurality of playable frequency points from high to low according to the signal-to-noise ratio when the playable frequency points with the same signal-to-noise ratio do not exist;
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring the signal strength values of a plurality of playable frequency points with the same signal-to-noise ratio when the playable frequency points with the same signal-to-noise ratio exist;
the second sequencing unit is used for sequencing the plurality of the playable frequency points with the same signal-to-noise ratio from high to low in signal strength value and sequencing the plurality of the playable frequency points with different signal-to-noise ratios from high to low in signal-to-noise ratio value;
and the inserting unit is used for inserting the sequencing sequence of the playable frequency points sequenced from high to low according to the signal intensity value into the sequencing sequence of the playable frequency points sequenced from high to low according to the signal-to-noise ratio value.
5. A FM channel searching apparatus as claimed in claim 4, wherein said FM channel searching apparatus further comprises:
and the deleting module is used for deleting the frequency point to be detected with the real-time signal-to-noise ratio smaller than the preset signal-to-noise ratio when the real-time signal-to-noise ratio of the frequency point to be detected is smaller than the preset signal-to-noise ratio.
6. A FM channel searching apparatus as claimed in claim 4, wherein said predetermined SNR value is 7 db.
7. A mobile terminal, characterized in that it comprises the FM channel searching device of any one of the preceding claims 4 to 6.
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| GB2437574B (en) * | 2006-04-28 | 2008-06-25 | Motorola Inc | Receiver for use in wireless communications and method of operation of the receiver |
| CN104092502B (en) * | 2014-06-26 | 2016-05-25 | 青岛海信移动通信技术股份有限公司 | A kind of radio station searching method and device |
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