CN113890661B - 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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- CN113890661B CN113890661B CN202110992702.2A CN202110992702A CN113890661B CN 113890661 B CN113890661 B CN 113890661B CN 202110992702 A CN202110992702 A CN 202110992702A CN 113890661 B CN113890661 B CN 113890661B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims description 8
- 238000012216 screening Methods 0.000 description 2
- 230000002650 habitual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
-
- 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]
-
- 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-mounted radio, and provides a radio station switching method based on digital signal broadcasting, which is characterized in that a default frequency table is corrected to obtain an optimized frequency table according to broadcasting information of the digital signal broadcasting which is listened to before, when the listening quality of a current listening radio station is poor (when a first switching condition is met), whether the listening recommended frequency and other frequencies can play the radio stations with the same or similar programs or not is judged in sequence according to the optimized frequency table, so that a service tracking function can still be 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
The current common practice of implementing the service tracking (service following) function by a single DAB (digital signal broadcasting) chip is as follows:
step 1: and acquiring frequency information related to current DAB service tracking.
The conventional frequency information is obtained by obtaining the frequency information (for example, 174.928MHz and 178.352 MHz) in the FIG0/21 table through the DAB tuner.
When the relevant frequency information is received, the step 2 is entered when the current broadcast station signal becomes worse.
Step 2: the frequency is set.
The frequencies obtained in step 1 are set as 174.928MHz and 178.352MHz in step 1, respectively. And (3) confirming whether each frequency point has a corresponding radio station, and if so, entering step (3).
Step 3: searching for service tracking related information
And searching whether a radio station playing the same or similar program exists or not through the service ID, and switching to play the radio station if the radio station playing the same or similar program exists.
The method can realize the service tracking function under normal conditions. But in special cases, such as in case the FIG0/21 provided by the DAB signal transmitting station is already outdated, 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 prior digital signal broadcasting playing technology cannot effectively realize a service tracking function, so that the user experience is poor.
In order to solve the technical problems, the invention provides a radio station switching method based on digital signal broadcasting, which comprises the following steps:
s1, acquiring broadcasting information of a digital signal broadcast which is currently listened to;
s2, correcting a default frequency table according to the broadcast information to obtain an optimized frequency table;
s3, acquiring recommended frequency from the optimized frequency table when judging that the current listening radio station meets a first switching condition;
s4, switching the current listening station according to the recommended frequency when judging that the recommended frequency meets a second switching condition, and if not, entering the next step;
s5, determining all the audible frequencies in the optimized frequency table, establishing a temporary radio station list, and determining switchable radio stations from the temporary radio station list according to the broadcasting information and pushing the switchable radio stations.
According to the basic scheme, the default frequency table is corrected to obtain the optimized frequency table according to broadcast information of the digital signal broadcast which is listened to before, when the listening quality of the current listening station is poor (when the first switching condition is met), whether the listening recommended frequency and other frequencies can play the stations with the same or similar programs or not is judged according to the optimized frequency table in sequence, and therefore the service tracking function can still be achieved 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 and obtaining corresponding broadcasting 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 identification of a digital signal broadcast currently listened to, a current program type, and corresponding recommended frequency information.
In a further embodiment, the step S2 specifically includes: and analyzing the recommended frequency information to obtain a corresponding recommended frequency, arranging the recommended frequency to the forefront end of a default frequency table, and renaming the recommended frequency 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 integrated into the forefront end of a default frequency table, an optimized frequency table is obtained, and proper frequencies are sequentially screened out according to the sequence from front to back of the optimized frequency table to conduct 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 rapidly realized; and when the FIG0/21 provided by the DAB signal transmitting station is out of date, the radio station recommendation can be performed according to other frequencies in the optimized frequency table, so that the realization of the service tracking function is ensured.
In a further embodiment, 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 a further embodiment, the step S4 includes the steps of:
s41, judging that a second switching condition is met when judging that the broadcasting program with the current service identifier exists in the frequency information of the recommended frequency and the signal strength of the recommended frequency is larger than a first preset threshold value;
s42, switching the current listening frequency to the recommended frequency, and listening to the corresponding broadcasting station.
In a further embodiment, 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 in a temporary radio station list when the frequency meets the preset detection condition;
s52, judging whether a switchable radio station with a service identifier being the current service identifier exists or not according to the temporary radio station list, if so, switching to the switchable radio station, otherwise, entering the next step;
and S53, determining switchable radio stations from the temporary radio station list according to user preference and pushing the switchable radio stations.
According to the scheme, based on the optimized frequency table, the switchable radio stations realizing the service tracking function can be rapidly screened out by taking the preset detection conditions and the current service identification as screening factors, so that stable listening experience is provided for users, otherwise, the switchable radio stations interested by the users are determined from the temporary radio station list and pushed according to the preference of the users, and the user experience is improved.
In a further embodiment, 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, a list update prompt is sent out, and a radio station list is updated according to user selection, or switchable radio stations of the same type are searched according to the current program type and pushed;
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 switchable radio station;
D. and detecting whether the current listening position is a position stored previously, if so, covering the current temporary list with the stored station list, and returning to the step S1.
When the radio station recommendation is carried out according to the preference of the user, the difference degree of 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 can be judged, and if the user leaves the habit listening area, the temporary radio station list is utilized for carrying out radio station pushing; otherwise, searching the switchable radio stations interested by the user again and pushing, fully considering the listening preference of the user, and giving the user the best listening experience.
In a further embodiment, the step of acquiring the radio station with the highest user recommendation index from the temporary radio station list according to a preset algorithm is specifically;
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 programs corresponding to each other frequency according to the temporary radio station list;
b. calculating user recommendation indexes corresponding to the other frequencies according to a preset algorithm;
d. and taking the program with the maximum user recommendation index as the radio station with the highest user recommendation index.
In a further embodiment, the preset algorithm is as follows:
wherein K (i) is a user recommendation index, and N1 is the number of target users listening to the broadcast program of the current service identifier; n2 (i) corresponds to the number of listeners of the target user of the broadcast program for each of the other frequencies.
The scheme starts from a target user listening to the broadcasting program identified by the current service, and according to the preference of the group with similar hobbies, the hobbies probability (namely the user recommendation index) of the current user to other broadcasting programs can be effectively predicted.
In a further embodiment, the preset detection conditions include: the signal intensity corresponding to the other frequencies is larger than a first preset threshold value; the DAB tuner may be detected to return corresponding station data.
Drawings
Fig. 1 is a working flow chart of a station switching method 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 a schematic illustration of FIG. 0/21 according to an embodiment of the present invention;
fig. 4 is an optimized frequency table provided by an embodiment of the present invention.
Detailed Description
The following examples are given for the purpose of illustration only and are not to be construed as limiting the invention, including the drawings for reference and description only, and are not to be construed as limiting the scope of the invention as 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 broadcasting information of a currently listened digital signal broadcast, wherein the broadcasting information comprises the following specific steps: analyzing and obtaining corresponding broadcasting 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 identification of a digital signal broadcast currently listened to, a current program type, and corresponding recommended frequency information.
S2, correcting a default frequency table according to broadcast information to obtain an optimized frequency table, referring to FIGS. 2-4, specifically: 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.
Taking fig. 3 as an example, the analyzed recommended frequencies are 178.352MHz and 183.648MHz, and the recommended frequencies 178.352MHz and 183.648MHz are arranged at the forefront of the default frequency table, as shown in fig. 4.
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 end of a default frequency table, an optimized frequency table is obtained, and proper frequencies are sequentially screened out according to the sequence from front to back of the optimized frequency table to conduct 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 rapidly realized; and when the FIG0/21 provided by the DAB signal transmitting station is out of date, the radio station recommendation can be performed according to other frequencies in the optimized frequency table, so that the realization of the service tracking function is ensured.
And S3, acquiring recommended frequency from the optimized frequency table when judging that the current listening radio station meets the first switching condition. The first switching condition is that the signal intensity of the current listening station is detected to be smaller than a first preset threshold value.
S4, when the recommended frequency meets the second switching condition, switching the current listening radio station according to the recommended frequency, and if not, entering the next step. Specifically, the method comprises the steps S41 to S42:
s41, judging that a second switching condition is met when judging that the broadcast program which is the same as the current service identifier exists in the frequency information of the recommended frequency and the signal strength of the recommended frequency is larger than a first preset threshold value;
s42, switching the current listening frequency to the recommended frequency, and listening to the corresponding broadcasting station.
S5, determining all the audible frequencies in the optimized frequency table, establishing a temporary radio station list, determining switchable radio stations from the temporary radio station list according to broadcast information, and pushing, wherein the method comprises the following steps of S51-S53:
s51, sequentially reading other frequencies except the recommended frequency in the optimized frequency table, tuning the DAB module to the current read frequency, and recording the frequency in 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 current read frequency is larger than a first preset threshold value, and the DAB tuner can be detected to return corresponding radio station data.
S52, judging whether a switchable radio station with a service identifier being the current service identifier exists or not according to the temporary radio station list, if so, switching to the switchable radio station, otherwise, entering the next step;
s53, determining a switchable radio station from the temporary radio station list according to user preference and pushing, wherein the method comprises the steps of A-C:
A. calculates the degree of difference between the temporary station list and the current station list listened to by the user,
B. and when the difference degree is larger than a second preset threshold value, a list updating prompt is sent out, and the radio station list is updated according to the selection of a user, or the switchable radio stations of the same type are searched according to the current program type and pushed.
For example: popup "do you leave the habitual listening area, do you update the station list? A "dialog box" if the user selects "yes" then storing the current channel list, then overlaying the current channel list with the temporary station list and proceeding to step C; otherwise, pop up "do DAB stations not playing the same program, search for DAB stations of the same type according to PTY? If the user selects yes, searching is performed according to the PTY and the step D is entered, otherwise, ending.
C. When the difference degree is smaller than a second preset threshold value, the radio station with the highest user recommendation index is obtained from the temporary radio station list according to a preset algorithm and is used as the switchable radio station to be pushed. 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 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 highest user recommendation index.
In a further embodiment, the preset algorithm is as follows:
wherein, K (i) is a user recommendation index, N1 is the number of target users listening to the broadcast program of the current service identification; n2 (i) corresponds to the number of listeners of the target user of the broadcast program for each other frequency.
D. And detecting whether the current listening position is a position stored previously, if so, covering the current temporary list with the stored station list, and returning to the step S1.
This embodiment:
1) Starting from the target users listening to the broadcast programs identified by the current service, the preference probability (i.e. user recommendation index) of the current users for other broadcast programs can be effectively predicted according to the preference of the groups with similar preference.
2) When recommending the radio stations according to the preference of the user, comparing the difference degree of the temporary radio stations and the current radio station list listened by the user in advance, judging whether the user is in a habit listening area, and if the user leaves the habit listening area, pushing the radio stations by using the temporary radio station list; otherwise, searching the switchable radio stations interested by the user again and pushing, fully considering the listening preference of the user, and giving the user the best listening experience.
3) Based on the optimized frequency table, the switchable radio stations realizing the service tracking function can be rapidly screened by taking preset detection conditions and current service identifiers as screening factors, so that stable listening experience is provided for users, otherwise, the switchable radio stations interested by the users are determined from the temporary radio station list and pushed according to the preference of the users, and the user experience is improved.
According to the embodiment of the invention, the default frequency table is corrected to obtain the optimized frequency table according to the broadcasting information of the previously listened digital signal broadcasting, when the listening quality of the current listened radio station is poor (when the first switching condition is met), whether the listened recommended frequency and other frequencies can play the radio stations of the same or similar programs or not is judged in sequence according to the optimized frequency table, so that the service tracking function can still be realized on the premise that the FIG0/21 provided by the DAB signal transmitting station is outdated.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (8)
1. A station switching method based on digital signal broadcasting, comprising the steps of:
s1, acquiring broadcasting information of a digital signal broadcast which is currently listened to;
s2, correcting a default frequency table according to the broadcast information to obtain an optimized frequency table;
s3, acquiring recommended frequency from the optimized frequency table when judging that the current listening radio station meets a first switching condition;
s4, switching the current listening station according to the recommended frequency when judging that the recommended frequency meets a second switching condition, and if not, entering the next step;
s5, determining all the audible frequencies in the optimized frequency table, establishing a temporary radio station list, determining switchable radio stations from the temporary radio station list according to the broadcasting information, and pushing;
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 in a temporary radio station list when the frequency meets the preset detection condition;
s52, judging whether a switchable radio station with a service identifier being the current service identifier exists or not according to the temporary radio station list, if so, switching to the switchable radio station, otherwise, entering the next step;
s53, determining a switchable radio station from the temporary radio station list according to user preference and pushing the switchable radio station;
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, a list update prompt is sent out, and a radio station list is updated according to user selection, or switchable radio stations of the same type are searched according to the current program type and pushed;
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 switchable radio station;
D. and detecting whether the current listening position is a position stored previously, if so, covering the current temporary list with the stored station list, and returning to the step S1.
2. The method for switching between stations based on digital signal broadcasting according to claim 1, wherein said step S1 specifically comprises: analyzing and obtaining corresponding broadcasting 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 identification of a digital signal broadcast currently listened to, a current program type, and corresponding recommended frequency information.
3. The method for switching between stations based on digital signal broadcasting as set forth in claim 2, wherein said step S2 is specifically: and analyzing the recommended frequency information to obtain a corresponding recommended frequency, arranging the recommended frequency to the forefront end of a default frequency table, and renaming the recommended frequency to be an optimized frequency table.
4. The station switching method based on digital signal broadcasting according to 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 comprises the steps of:
s41, judging that a second switching condition is met when judging that the broadcasting program containing the current service identifier exists in the frequency information of the recommended frequency and the signal strength of the recommended frequency is larger than a first preset threshold value;
s42, switching the current listening frequency to the recommended frequency, and listening to the corresponding broadcasting station.
6. The method for switching between stations based on digital signal broadcasting according to claim 1, wherein said obtaining the station with the highest user recommendation index from said temporary station list according to a preset algorithm is specifically;
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 programs corresponding to each other frequency according to the temporary radio station list;
b. calculating user recommendation indexes corresponding to the other frequencies according to a preset algorithm;
d. and taking the program with the maximum user recommendation index as the radio station with the highest user recommendation index.
7. The method for switching between stations based on digital signal broadcasting as set forth in claim 6, wherein said preset algorithm is as follows:
wherein K (i) is a user recommendation index, and N1 is the number of target users listening to the broadcast program of the current service identifier; n2 (i) corresponds to the number of listeners of the target user of the broadcast program for each of the other frequencies.
8. The station switching method based on digital signal broadcasting as claimed in claim 1, wherein said preset detection condition comprises: the signal intensity corresponding to the other frequencies is larger than a first preset threshold value; the DAB tuner may 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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| CN114928423B (en) * | 2022-07-20 | 2022-09-27 | 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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