CN113890661A - Radio station switching method based on digital signal broadcasting - Google Patents
Radio station switching method based on digital signal broadcasting Download PDFInfo
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- CN113890661A CN113890661A CN202110992702.2A CN202110992702A CN113890661A CN 113890661 A CN113890661 A CN 113890661A CN 202110992702 A CN202110992702 A CN 202110992702A CN 113890661 A CN113890661 A CN 113890661A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims description 8
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/46—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for recognising users' preferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
- H04H2201/20—Aspects of broadcast communication characterised by the type of broadcast system digital audio broadcasting [DAB]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to the technical field of vehicle radio, and provides a radio station switching method based on digital signal broadcasting.A default frequency table is corrected to obtain an optimized frequency table according to the broadcasting information of the digital signal broadcasting which is listened to before, and when the listening quality of the current listening radio station is poor (when a first switching condition is met), whether the recommended frequency and other frequencies can be listened to and broadcasting stations of the same or similar programs can be played or not is sequentially judged according to the optimized frequency table, so that the service tracking function can be still realized on the premise that FIG0/21 provided by a DAB signal transmitting station is outdated.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted radio, in particular to a radio station switching method based on digital signal broadcasting.
Background
At present, a common method for realizing a service tracking (service following) function by a single DAB (digital signal broadcasting) chip is as follows:
step 1: frequency information related to tracking of the current DAB service is acquired.
The conventional way to obtain the frequency information is to obtain the frequency information (e.g. 174.928MHz, 178.352MHz) in the FIG0/21 table through the DAB tuner.
When the relevant frequency information is received, step 2 is entered when the signal of the current broadcasting station is deteriorated.
Step 2: the frequency is set.
The frequencies obtained in step 1, such as 174.928MHz and 178.352MHz in step 1, are set respectively. And (4) confirming whether each frequency point has a corresponding radio station, and if so, entering the step 3.
And step 3: lookup service tracking related information
And searching whether a radio station playing the same or similar programs exists through the service ID, and if so, switching to the radio station to play.
The method can realize the service tracking function under normal conditions. But in special cases, such as when the FIG0/21 provided by the DAB signal transmitting station is out of date, the service tracking function cannot be implemented.
Disclosure of Invention
The invention provides a radio station switching method based on digital signal broadcasting, which solves the technical problem that the existing digital signal broadcasting playing technology cannot effectively realize a service tracking function, so that the user experience is poor.
In order to solve the above technical problems, the present invention provides a radio station switching method based on digital signal broadcasting, comprising the steps of:
s1, acquiring the broadcast information of the currently listened digital signal broadcast;
s2, correcting the default frequency table according to the broadcast information to obtain an optimized frequency table;
s3, when the fact that the current listening radio station meets a first switching condition is judged, obtaining recommended frequency from the optimized frequency table;
s4, when the recommended frequency meets a second switching condition, switching the current listening radio station according to the recommended frequency, and if not, entering the next step;
s5, determining all receivable frequencies in the optimized frequency list, establishing a temporary radio station list, and determining and pushing a switchable radio station from the temporary radio station list according to the broadcast information.
The basic scheme modifies the default frequency table to obtain an optimized frequency table according to the broadcast information of the digital signal broadcast listened to before, and when the listening quality of the current listening radio station is poor (when a first switching condition is met), whether the recommended listening frequency and other frequencies can play the radio stations with the same or similar programs or not is sequentially judged according to the optimized frequency table, so that the service tracking function can be still realized on the premise that the FIG0/21 provided by the DAB signal transmitting station is outdated.
In a further embodiment, the step S1 specifically includes: analyzing to obtain corresponding broadcast information according to DAB service tracking information received by a DAB tuner, and storing the position information of the current radio station;
the broadcast information includes a current service identifier of a currently listened digital signal broadcast, a current program type, and corresponding recommended frequency information.
In a further embodiment, the step S2 specifically includes: and analyzing according to the recommended frequency information to obtain corresponding recommended frequencies, arranging the recommended frequencies to the forefront of a default frequency table, and renaming the recommended frequencies to be an optimized frequency table.
According to the scheme, corresponding recommended frequency information (recommended frequency) is obtained according to DAB service tracking information received by a DAB tuner, the recommended frequency is merged into the foremost end of a default frequency table to obtain an optimized frequency table, and proper frequencies are sequentially screened out according to the sequence from front to back of the optimized frequency table to recommend the radio station. When the recommended frequency meets the switching condition (namely, the second switching condition), the recommended frequency can be directly listened to, and the service tracking function is quickly realized; and when the FIG0/21 provided by the DAB signal transmitting station is out of date, station recommendation can be carried out according to other frequencies in the optimized frequency table, and the realization of the service tracking function is ensured.
In further embodiments, in said step S3: the first switching condition is that the signal intensity of the current listening radio station is detected to be smaller than a first preset threshold value.
In further embodiments, the step S4 includes the steps of:
s41, when it is judged that the broadcasting program of the current service identification exists in the frequency information of the recommended frequency and the signal intensity of the recommended frequency is greater than a first preset threshold value, judging that a second switching condition is met;
and S42, switching the current listening frequency to the recommended frequency, and listening to the corresponding broadcasting station.
In further embodiments, the step S5 includes the steps of:
s51, sequentially reading other frequencies except the recommended frequency in the optimized frequency table, tuning the DAB module to the currently read frequency, and recording the frequency into a temporary radio station list when the frequency meets the preset detection condition;
s52, judging whether a switchable radio station with a service identifier as the current service identifier exists according to the temporary radio station list, if so, switching to the switchable radio station, otherwise, entering the next step;
and S53, determining switchable stations from the temporary station list according to user preferences and pushing.
The scheme is based on the optimized frequency table, the preset detection conditions and the current service identification are used as screening factors, the switchable radio stations with the service tracking function can be rapidly screened out, so that stable listening experience is given to a user, otherwise, the switchable radio stations which are interested by the user are determined from the temporary radio station list and pushed according to the user preference, and the user experience is improved.
In further embodiments, the step S53 includes:
A. calculating the difference degree between the temporary station list and the current station list listened to by the user,
B. when the difference degree is larger than a second preset threshold value, sending a list updating prompt, updating a radio station list according to user selection, or searching and pushing switchable radio stations of the same type according to the current program type;
C. when the difference degree is smaller than a second preset threshold value, acquiring a radio station with the highest user recommendation index from the temporary radio station list according to a preset algorithm, and taking the radio station as a switchable radio station and pushing the radio station;
D. it is detected whether the current listening position is a previously stored position, and if so, the current temporary list is overwritten with the stored station list, and the process returns to step S1.
According to the scheme, when the radio station is recommended according to the preference of the user, the difference degree between the temporary radio station and the current radio station list listened by the user is compared in advance, whether the user is in a habit listening area or not can be judged, and if the user leaves the habit listening area, the temporary radio station list is used for pushing the radio station; otherwise, the switchable stations which are interested by the user are searched again and pushed, the listening preference of the user is fully considered, and the user is given the best listening experience.
In a further embodiment, the radio station with the highest user recommendation index is obtained from the temporary radio station list according to a preset algorithm;
a. acquiring the number of target users listening to the broadcast program of the current service identifier;
b. acquiring the listening quantity of target users of the broadcast programs corresponding to each other frequency according to the temporary radio station list;
b. calculating a user recommendation index corresponding to each other frequency according to a preset algorithm;
d. and taking the program with the maximum user recommendation index as the radio station with the maximum user recommendation index.
In a further embodiment, the preset algorithm is as follows:
wherein k (i) is a user recommendation index, and N1 is a target number of users listening to the broadcast program identified by the current service; n2(i) is the number of listengths of the target user of the corresponding broadcast program for each of the other frequencies.
According to the scheme, the target user listening to the broadcast program identified by the current service can effectively predict the preference probability (namely the user recommendation index) of the current user to other broadcast programs according to the preference of the group with similar preference.
In further embodiments, the preset detection conditions include: the signal intensity corresponding to the other frequencies is greater than a first preset threshold value; the DAB tuner can be detected to return corresponding station data.
Drawings
Fig. 1 is a flowchart of a method for switching stations based on digital signal broadcasting according to an embodiment of the present invention;
FIG. 2 is a DAB default frequency table provided by an embodiment of the present invention;
FIG. 3 is an exemplary schematic diagram of FIG. 0/21 provided by an embodiment of the present invention;
fig. 4 is an optimized frequency table provided by an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which are given solely for the purpose of illustration and are not to be construed as limitations of the invention, including the drawings which are incorporated herein by reference and for illustration only and are not to be construed as limitations of the invention, since many variations thereof are possible without departing from the spirit and scope of the invention.
As shown in fig. 1, the radio station switching method based on digital signal broadcasting according to the embodiment of the present invention includes steps S1 to S5:
s1, acquiring broadcast information of the currently listened digital signal broadcast, specifically: analyzing to obtain corresponding broadcast information according to DAB service tracking information received by a DAB tuner, and storing the position information of the current radio station;
the broadcasting information includes a current service identifier of a currently listened digital signal broadcasting, a current program type, and corresponding recommended frequency information.
S2, modifying the default frequency table according to the broadcast information to obtain an optimized frequency table, as shown in fig. 2 to 4, specifically: and analyzing according to the recommended frequency information to obtain corresponding recommended frequencies, arranging the recommended frequencies to the forefront of the default frequency table, and renaming the recommended frequencies to be the optimized frequency table.
Taking fig. 3 as an example, the analyzed recommended frequencies are 178.352MHz and 183.648MHz, and then 178.352MHz and 183.648MHz are arranged at the forefront of the default frequency table, that is, as shown in fig. 4.
In this embodiment, according to DAB service tracking information received by a DAB tuner, corresponding recommended frequency information (recommended frequency) is obtained, the recommended frequencies are arranged at the forefront of a default frequency table to obtain an optimized frequency table, and according to the sequence from front to back of the optimized frequency table, appropriate frequencies are sequentially screened out for radio station recommendation. When the recommended frequency meets the switching condition (namely, the second switching condition), the recommended frequency can be directly listened to, and the service tracking function is quickly realized; and when the FIG0/21 provided by the DAB signal transmitting station is out of date, station recommendation can be carried out according to other frequencies in the optimized frequency table, and the realization of the service tracking function is ensured.
And S3, acquiring the recommended frequency from the optimized frequency table when the current listening radio station meets the first switching condition. The first switching condition is that the signal intensity of the current listening radio station is detected to be smaller than a first preset threshold value.
And S4, switching the current listening radio station according to the recommended frequency when the recommended frequency is judged to meet the second switching condition, and otherwise, entering the next step. The method specifically comprises the following steps of S41-S42:
s41, when it is judged that the frequency information of the recommended frequency contains the broadcast program which is the same as the current service identification and the signal intensity of the recommended frequency is greater than a first preset threshold value, judging that a second switching condition is met;
and S42, switching the current listening frequency to the recommended frequency, and listening to the corresponding broadcasting station.
S5, determining all receivable frequencies in the optimized frequency list, establishing a temporary station list, determining switchable stations from the temporary station list according to the broadcast information and pushing, including steps S51-S53:
s51, sequentially reading other frequencies except the recommended frequency in the optimized frequency table, tuning the DAB module to the currently read frequency, and recording the frequency into a temporary radio station list when the frequency meets the preset detection condition;
in this embodiment, the preset detection conditions include: the signal intensity corresponding to the currently read frequency is larger than a first preset threshold value, and the fact that the DAB tuner returns corresponding radio station data can be detected.
S52, judging whether a switchable radio station with the service identifier as the current service identifier exists according to the temporary radio station list, if so, switching to the switchable radio station, otherwise, entering the next step;
s53, determining switchable radio stations from the temporary radio station list according to the user preference and pushing the switchable radio stations, wherein the switchable radio stations comprise A to C:
A. calculating the difference degree between the temporary station list and the current station list listened by the user,
B. and when the difference degree is greater than a second preset threshold value, sending a list updating prompt, updating the radio station list according to user selection, or searching and pushing switchable radio stations of the same type according to the current program type.
For example: pop up "do you leave the habitual listening area, update station list? If the user selects 'yes', storing a current channel list, then covering the current channel list with a temporary radio station list, and entering the step C; otherwise, pop up "do not have DAB station playing the same program, whether to search for DAB station of the same type according to PTY? If the user chooses yes, then search according to PTY and proceed to step D, otherwise end.
C. And when the difference degree is smaller than a second preset threshold value, acquiring the radio station with the highest user recommendation index from the temporary radio station list according to a preset algorithm, and taking the radio station as a switchable radio station and pushing the radio station. The second preset threshold may be set as desired, for example 50% or 60%.
In this embodiment, the radio station with the highest user recommendation index is obtained from the temporary radio station list according to a preset algorithm;
a. acquiring the number of target users listening to the broadcasting program of the current service identifier;
b. acquiring the listening quantity of target users of the broadcast program corresponding to each other frequency according to the temporary radio station list;
b. calculating user recommendation indexes corresponding to other frequencies according to a preset algorithm;
d. and taking the program with the maximum user recommendation index as the radio station with the maximum user recommendation index.
In a further embodiment, the preset algorithm is as follows:
wherein, k (i) is a user recommendation index, and N1 is a target user number for listening to the broadcast program identified by the current service; n2(i) is the number of listengths of the target user of the corresponding broadcast program for each other frequency.
D. It is detected whether the current listening position is a previously stored position, and if so, the current temporary list is overwritten with the stored station list, and the process returns to step S1.
In this embodiment:
1) starting from a target user listening to a broadcast program identified by the current service, the preference probability (i.e., user recommendation index) of the current user for other broadcast programs can be effectively predicted according to the preference of the group with similar preference.
2) When the radio station is recommended according to the preference of the user, the difference degree between the temporary radio station and the current radio station list listened by the user is compared in advance, whether the user is in a habit listening area or not can be judged, and if the user leaves the habit listening area, the temporary radio station list is used for pushing the radio station; otherwise, the switchable stations which are interested by the user are searched again and pushed, the listening preference of the user is fully considered, and the user is given the best listening experience.
3) Based on the optimized frequency table, the switchable radio stations with the service tracking function can be quickly screened out by taking the preset detection conditions and the current service identification as screening factors, so that stable listening experience is given to a user, otherwise, the switchable radio stations which are interested by the user are determined from the temporary radio station list and pushed according to the user preference, and the user experience is improved.
According to the embodiment of the invention, the default frequency table is modified to obtain the optimized frequency table according to the broadcast information of the digital signal broadcast which is listened to before, and when the listening quality of the current listening radio station is poor (when the first switching condition is met), whether the recommended listening frequency and other frequencies can play the radio stations with the same or similar programs or not is sequentially judged according to the optimized frequency table, so that the service tracking function can be still realized on the premise that the FIG0/21 provided by the DAB signal transmitting station is outdated.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A method for switching stations based on digital signal broadcasting, comprising the steps of:
s1, acquiring the broadcast information of the currently listened digital signal broadcast;
s2, correcting the default frequency table according to the broadcast information to obtain an optimized frequency table;
s3, when the fact that the current listening radio station meets a first switching condition is judged, obtaining recommended frequency from the optimized frequency table;
s4, when the recommended frequency meets a second switching condition, switching the current listening radio station according to the recommended frequency, and if not, entering the next step;
s5, determining all receivable frequencies in the optimized frequency list, establishing a temporary radio station list, and determining and pushing a switchable radio station from the temporary radio station list according to the broadcast information.
2. The method as claimed in claim 1, wherein the step S1 is specifically as follows: analyzing to obtain corresponding broadcast information according to DAB service tracking information received by a DAB tuner, and storing the position information of the current radio station;
the broadcast information includes a current service identifier of a currently listened digital signal broadcast, a current program type, and corresponding recommended frequency information.
3. The method as claimed in claim 2, wherein the step S2 is specifically as follows: and analyzing according to the recommended frequency information to obtain corresponding recommended frequencies, arranging the recommended frequencies to the forefront of a default frequency table, and renaming the recommended frequencies to be an optimized frequency table.
4. The station switching method based on digital signal broadcasting as claimed in claim 1, wherein in said step S3: the first switching condition is that the signal intensity of the current listening radio station is detected to be smaller than a first preset threshold value.
5. The station switching method based on digital signal broadcasting as claimed in claim 2, wherein said step S4 includes the steps of:
s41, when it is judged that the broadcasting program of the current service identification exists in the frequency information of the recommended frequency and the signal intensity of the recommended frequency is greater than a first preset threshold value, judging that a second switching condition is met;
and S42, switching the current listening frequency to the recommended frequency, and listening to the corresponding broadcasting station.
6. The station switching method based on digital signal broadcasting as claimed in claim 1, wherein said step S5 includes the steps of:
s51, sequentially reading other frequencies except the recommended frequency in the optimized frequency table, tuning the DAB module to the currently read frequency, and recording the frequency into a temporary radio station list when the frequency meets the preset detection condition;
s52, judging whether a switchable radio station with a service identifier as the current service identifier exists according to the temporary radio station list, if so, switching to the switchable radio station, otherwise, entering the next step;
and S53, determining switchable stations from the temporary station list according to user preferences and pushing.
7. The method for switching stations according to claim 6, wherein said step S53 includes:
A. calculating the difference degree between the temporary station list and the current station list listened to by the user,
B. when the difference degree is larger than a second preset threshold value, sending a list updating prompt, updating a radio station list according to user selection, or searching and pushing switchable radio stations of the same type according to the current program type;
C. when the difference degree is smaller than a second preset threshold value, acquiring a radio station with the highest user recommendation index from the temporary radio station list according to a preset algorithm, and taking the radio station as a switchable radio station and pushing the radio station;
D. it is detected whether the current listening position is a previously stored position, and if so, the current temporary list is overwritten with the stored station list, and the process returns to step S1.
8. The method as claimed in claim 7, wherein the station with the highest user recommendation index is obtained from the temporary station list according to a preset algorithm;
a. acquiring the number of target users listening to the broadcast program of the current service identifier;
b. acquiring the listening quantity of target users of the broadcast programs corresponding to each other frequency according to the temporary radio station list;
b. calculating a user recommendation index corresponding to each other frequency according to a preset algorithm;
d. and taking the program with the maximum user recommendation index as the radio station with the maximum user recommendation index.
9. A method as claimed in claim 7 or 8, wherein the predetermined algorithm is as follows:
wherein k (i) is a user recommendation index, and N1 is a target number of users listening to the broadcast program identified by the current service; n2(i) is the number of listengths of the target user of the corresponding broadcast program for each of the other frequencies.
10. The method as claimed in claim 6, wherein the predetermined detection condition comprises: the signal intensity corresponding to the other frequencies is greater than a first preset threshold value; the DAB tuner can be detected to return corresponding station data.
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| CN202110992702.2A CN113890661B (en) | 2021-08-27 | 2021-08-27 | Radio station switching method based on digital signal broadcasting |
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| CN202110992702.2A CN113890661B (en) | 2021-08-27 | 2021-08-27 | Radio station switching method based on digital signal broadcasting |
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| CN114928423A (en) * | 2022-07-20 | 2022-08-19 | 深圳市徐港电子有限公司 | Switching control method and system for multi-channel broadcast tuner and terminal equipment |
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