CN102324993A - Transregional automatic radio station switching method for vehicle-mounted radio - Google Patents
Transregional automatic radio station switching method for vehicle-mounted radio Download PDFInfo
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Abstract
The invention discloses a transregional automatic radio station switching method for a vehicle-mounted radio, wherein a vehicle-mounted radio system consisting of a microprocessor module, a positioning module and a radio module is adopted. The transregional automatic radio station switching method comprises the steps of: locking preferential programs and establishing a preferential program file according to the habits of a user; acquiring notices of a new region in which a radio is located, in real time by the positioning module; when the signal intensity of a current radio station is smaller than a preset threshold value, starting and searching radio stations again; recording all the radio stations with signal intensity values more than the threshold value in a frequency band into a list by the radio module, wherein the list comprises the signal intensity values, frequencies and radio station types determined according to information in a radio station database; and comparing the preference program file with the list one by one, and locking the frequency of the radio stations with the same types as that of preferential programs in the list, in the radio. According to the invention, the functions of automatic radio station searching and locking as well as transregional automatic channel recommendation based on vehicle owner habits are fulfilled for the vehicle-mounted radio.
Description
Technical field
The invention belongs to the vehicle-mounted radio field, the trans-regional automatic channel switching method of particularly a kind of vehicle-mounted radio, this method solves territory, broadcast receiver inter-bank administrative division automatic channel search, lock platform through the communication location, and is accustomed to recommending to listen to automatically channel according to the car owner.
Background technology
Vehicle-mounted radio all has the function of locking hobby program, and the person of typically using selects several channels according to the hobby of oneself and carries out prior locking through locking key, as long as press different locking keies in the use; Broadcast receiver just can receive the program in this radio station, and therefore, the application of existing vehicle-mounted radio is a passive type; When the car owner is trans-regional; Platform can appear not having in current broadcast receiver, needs manually search again manually to search platform again, the lock platform; And the platform of locking might not be that the car owner likes the channel listened, has brought inconvenience for car owner's use.
Summary of the invention
The objective of the invention is for addressing the above problem the technical scheme of the trans-regional automatic channel switching method of a kind of vehicle-mounted radio that proposes; Through setting up each department broadcast message table; Confirm position, broadcast receiver location through the communication location; The broadcast message of from the broadcast message table, finding out hobby automatically locks, and then realizes that broadcast receiver is trans-regional from moving platform.
To achieve these goals; Technical scheme of the present invention is; The trans-regional automatic channel switching method of a kind of vehicle-mounted radio; Comprise by what microprocessor module, locating module and radio receiver module were formed and trans-regionally carry the broadcast receiver system from moving chassis, microprocessor module is set up the radio station database in its archival memory, and said radio station database comprises zones of different locating information, zones of different program of radio station type, frequency of radio station; Setting signal intensity level rank and predetermined threshold value, said method step is: at first be accustomed to locking hobby program, set up hobby program archives according to the user; It is characterized in that described method step further comprises:
A. obtain broadcast receiver new region notice of living in real time through locating module;
B. after receiving the new region notice, at first check the signal strength signal intensity of current listening station, if signal strength signal intensity more than threshold value, continues current station channel, and the signal strength values in current radio station is regularly monitored in beginning;
C., start and search for radio station again during in the signal strength signal intensity of current listening station less than preset threshold value;
D. radio receiver module begins scanning frequency section from low to high: at first judge radio receiver module radio station judgement end signal; If the radio station judges that the end signal value is 1; Represent this frequency that the radio station is arranged; Read the radio receiver module radio signals intensity level under the current frequency then, if signal strength values below said threshold value, is directly given up this; If signal strength values is more than said threshold value; Write down this frequency radio station so, the radio station of all signal strength values more than threshold value in the frequency band all is recorded in the tabulation, also comprise the frequency of this signal strength values and this signal radio station type of confirming according to the information in the database of said radio station in the said tabulation;
E. said hobby program archives and said tabulation are compared one by one, from tabulation, will in broadcast receiver, lock with the frequency of radio station of said hobby program same type.
Described method step further comprises: if said hobby program archives are for empty; Can store the quantity of platform so according to broadcast receiver, arrange the radio station storage locking of choosing this quantity from big to small or according to the tabulation medium frequency from low to high according to signal strength values in the tabulation.
Described method step further comprises: if program category in the said tabulation and said hobby program archives do not meet, the quantity that can store platform according to broadcast receiver is so arranged the platform storage locking of choosing this quantity from big to small or according to frequency from low to high according to signal strength values.
Described method step further comprises: if program category in the said tabulation and said hobby program archives not in full conformity with; So after correspondence is accomplished the hobby program meet, the quantity in residue storage radio station is arranged from low to high from big to small or according to frequency according to signal strength values FSU and is chosen the storage locking.
Said signal strength values rank is divided into 0 to 100 grade, signal strength values is equaled 60 be set at said threshold value.
Saidly be accustomed to locking hobby program, set up hobby program archives: be that hobby program order that the user is locked in radio in an area is as liking the program archives based on the user.
Saidly be accustomed to locking hobby program, set up hobby program archives: be to search platform for the first time from the user to begin to add up the frequency that the user uses different radio station to occur in setting-up time according to the user; The different radio station frequency of occurrences is represented with F; And then the frequency of utilization that obtains current storage platform is tabulated; The each listening period that gets into each radio station of record; And each radio station in the setting-up time listened to the statistics of total time, and each radio station is listened to total time be labeled as T, F and T are brought into formula γ=(30+F)
2+ T carries out sequence arrangement by size with a plurality of γ numerical value and sets up hobby program archives.
The advantage that the present invention compared with prior art has is: realized territory, vehicle-mounted radio inter-bank administrative division automatic channel search, lock platform, and be accustomed to the function that channel is listened in recommendation automatically according to the car owner.
Below in conjunction with accompanying drawing and embodiment the present invention is done a detailed description.
Description of drawings
Fig. 1 is a system architecture diagram of the present invention;
Fig. 2 is a method flow block diagram of the present invention.
Embodiment
Embodiment 1,
The trans-regional automatic channel switching method embodiment of a kind of vehicle-mounted radio; Referring to Fig. 1 and Fig. 2; Said method comprise by microprocessor module 1, locating module 2 (GPS/AGPS satellite fix or base station positioning unit module) and radio receiver module 3 (FM/AM tuning with AM receiver module) forms trans-regional oneself move chassis and carry the broadcast receiver system; Microprocessor module is set up the radio station database in its archival memory 1-1; Said radio station database comprises zones of different locating information, zones of different program of radio station type, frequency of radio station; Setting signal intensity level rank and predetermined threshold value (data are used binary file format in memory); Communication module 4 is realized the manual locking of user to broadcast receiver hobby program among Fig. 1, and said method step is: at first be accustomed to locking hobby program according to the user, set up hobby program archives; Its described method step further comprises:
A. obtain broadcast receiver new region notice of living in real time through locating module;
B. after receiving the new region notice; At first check the current signal strength signal intensity (the signal strength signal intensity FSU end of radio receiver module) of listening to the radio station; If signal strength signal intensity more than threshold value, continues current channel, and beginning timing (such as 5 seconds once) monitoring is when the signal strength values on foreground;
C., start and search for radio station again during in the signal strength signal intensity of current listening station less than preset threshold value;
D. radio receiver module begins the frequency number section that exposes thoroughly from low to high: end (SSTOP end) signal is judged in the radio station of at first judging radio receiver module; If the radio station judges that the end signal value is that on behalf of this frequency, 1 (high potential) radio station is arranged; Read the radio signals intensity level that the radio receiver module under the current broadcast station frequency sends then; If signal strength values is below said threshold value; Directly give up this, if signal strength values more than said threshold value, writes down this frequency radio station so; The radio station of all signal strength values more than threshold value in the frequency band all is recorded in the tabulation, also comprises the frequency of this signal strength values and this frequency radio station type of confirming according to the information in the database of said radio station in the said tabulation;
E. said hobby program archives and said tabulation are compared one by one, from tabulation, will in broadcast receiver, lock with the frequency of radio station of said hobby program same type.
Described radio receiver module is a kind of known hardware module; Be divided into 0 to 100 grade (for example the signal strength values with the 3.3V of radio receiver module output is divided into 100 grades) for said signal strength values rank among the embodiment, signal strength values equaled 60 be set at said threshold value.
Said in the above-described embodiments method step also comprises following three kinds of situation:
One of which; Described method step also further comprises: if said hobby program archives are for empty; Can store the quantity of platform so according to broadcast receiver, arrange the radio station storage locking of choosing this quantity from big to small or according to the tabulation medium frequency from low to high according to signal strength values FSU in the tabulation.
They are two years old; Described method step further comprises: if program category in the said tabulation and said hobby program archives do not meet, the quantity that can store platform according to broadcast receiver is so arranged the platform storage locking of choosing this quantity from big to small or according to frequency from low to high according to signal strength values FSU.
They are three years old; Described method step further comprises: if program category in the said tabulation and said hobby program archives not in full conformity with; So after correspondence is accomplished the hobby program meet, the quantity in residue storage radio station is arranged from low to high from big to small or according to frequency according to signal strength values FSU and is chosen the storage locking.
Embodiment 2,
Referring to embodiment 1, in the present embodiment for said be accustomed to locking hobby program, set up hobby program archives based on the user be: the hobby program based on the user locks in radio in an area is confirmed hobby program archives in proper order.
Embodiment 3,
Referring to embodiment 1; Be accustomed to locking hobby program, set up hobby program archives according to the user described in the present embodiment can also be: search platform for the first time from the user and begin to add up the frequency that the user uses different radio station to occur in the setting-up time; The different radio station frequency of occurrences is represented with F; And then obtain the frequency of utilization tabulation of current storage platform, the each listening period that gets into each radio station of record, and each radio station in the setting-up time listened to the statistics of total time; Each radio station listened to total time be labeled as T, F and T are brought into formula γ=(30+F)
2+ T carries out sequence arrangement by size with a plurality of γ numerical value and sets up hobby program archives.
Be detailed description further below to the foregoing description:
At first in the frequency information and vehicle-mounted radio system that the platform name is called a data library storage of the radio station of each administrative region, the whole nation; Utilize gps satellite location or location, AGPS base station; Draw the latitude and longitude coordinates of present automobile position, judge the administrative region at automobile place, can upgrade the radio station automatically when going when automobile is trans-regional according to latitude and longitude coordinates; Trans-regional search again, and do contrast back lock platform with the information in the database; It is searched platform and changes platform mechanism and be when equipment is trans-regional:
1.GPS locating module passes through serial ports to CPU conveyor zones positional information;
2.CPU after receiving the information of regional change; Go to check the signal strength signal intensity of the current platform of listening to; If signal strength signal intensity FSU is on threshold value (representative is still effective when the foreground, can normally listen to) also, that is not just carried out and forces to search the platform order; The continuity current channel, and beginning timing (such as 5 seconds once) monitoring is as the signal strength values FSU on foreground;
In case CPU detect when the signal strength signal intensity FUS on foreground less than preset threshold value, this moment, representative of consumer can not normally be listened to this, CPU can give an order and force to search for again radio station this moment;
4. after radio receiver module was received again the order of searching broadcasting station, the radio station in the search new region began scanning frequency section from low to high; At first judge the SSTOP signal of radio receiver module,, represent this frequency that platform is arranged if the SSTOP signal value is 1; Read the signal strength values FSU of the radio receiver module under the current frequency then, FUS is divided into 0 ~ 100 grade, and the value of FSU can normally be listened in 60 above representative of consumer; If the FSU value 60 once; Directly give up this, if value writes down this frequency and signal strength signal intensity so more than 60; After having scanned a frequency range, (all signal strength signal intensity FSU have been recorded in the tabulation at the platform more than 60 in 87.5 ~ 107MHz) such as the FM frequency range;
5.CPU after the access tabulation, begin to read the user behavior analysis tabulation; If the user uses radio for the first time; This moment, the user behavior analysis tabulation did not exist so; The quantity of the platform that can store based on radio of CPU is chosen the platform of this quantity from big to small based on the FSU value so, big or small ascending arrangement of frequency, and number corresponding one by one with the platform of storage;
6. if there has been the user behavior analysis tabulation, need compare analysis to tabulation behind the current search and user behavior tabulation so, step is following:
(1) reading background data base, each adds an identifier in the tabulation of search back, is a such as the traffic platform, and the literature and art platform is b, Music Radio c, or the like;
(2) identifier with belt transect in the user behavior analysis tabulation, begin correspondence by the identifier in this tabulation, is c such as first the identifier of analyzing in the tabulation, and that is identifier in the search listing that the platform of C is put into first just, and the like;
(3) if the identifier in the user behavior analysis on the correspondence, is not abandoned the correspondence of this identifier so in search listing, it is corresponding with search listing to choose the next identifier of analyzing in the tabulation;
(4) after corresponding the completion, if also have platform not have on the correspondence in the search listing, so remaining according to the ascending arrangement of frequency;
(5) after all arrangement is finished, choose with search platform before the consistent platform of identifier of the platform listened to of user use to the user.
The generting machanism of user behavior analysis tabulation (being equivalent to set up hobby program archives):
Search platform for the first time from the user and begin to carry out user behavior tabulation analysis; The user uses the frequency F of the appearance of platform in statistics a period of time, if use this such as each start back user, the value of F will add 1 so, can draw the frequency of utilization tabulation of current storage platform at last; Service time, statistics write down each listening period that gets into a certain, and carried out the statistics of total time within a certain period of time, and we are labeled as T; Obtain frequency of utilization and after total time, pressing γ=(30+F)
2+ T formula calculates, and draws a plurality of γ numerical value, arranges according to a plurality of γ numerical value at last, draws the user behavior analysis tabulation at last.
Claims (7)
1. trans-regional automatic channel switching method of vehicle-mounted radio; Comprise by what microprocessor module, locating module and radio receiver module were formed and trans-regionally carry the broadcast receiver system from moving chassis; Microprocessor module is set up the radio station database in its archival memory; Said radio station database comprises zones of different locating information, zones of different program of radio station type, frequency of radio station; Setting signal intensity level rank and predetermined threshold value, said method step is: at first be accustomed to locking hobby program, set up hobby program archives according to the user; It is characterized in that described method step further comprises:
A. obtain broadcast receiver new region notice of living in real time through locating module;
B. after receiving the new region notice, at first check the signal strength signal intensity of current listening station, if signal strength signal intensity more than threshold value, continues current station channel, and the signal strength values in current radio station is regularly monitored in beginning;
C., start and search for radio station again during in the signal strength signal intensity of current listening station less than preset threshold value;
D. radio receiver module begins scanning frequency section from low to high: at first judge radio receiver module radio station judgement end signal; If the radio station judges that the end signal value is 1; Represent this frequency that the radio station is arranged; Read the radio receiver module radio signals intensity level under the current frequency then, if signal strength values below said threshold value, is directly given up this; If signal strength values is more than said threshold value; Write down this frequency radio station so, the radio station of all signal strength values more than threshold value in the frequency band all is recorded in the tabulation, also comprise the frequency of this signal strength values and this signal radio station type of confirming according to the information in the database of said radio station in the said tabulation;
E. said hobby program archives and said tabulation are compared one by one, from tabulation, will in broadcast receiver, lock with the frequency of radio station of said hobby program same type.
2. the trans-regional automatic channel switching method of a kind of vehicle-mounted radio according to claim 1; It is characterized in that; Described method step further comprises: if said hobby program archives are for empty; Can store the quantity of platform so according to broadcast receiver, arrange the radio station storage locking of choosing this quantity from big to small or according to the tabulation medium frequency from low to high according to signal strength values in the tabulation.
3. the trans-regional automatic channel switching method of a kind of vehicle-mounted radio according to claim 1; It is characterized in that; Described method step further comprises: if program category in the said tabulation and said hobby program archives do not meet, the quantity that can store platform according to broadcast receiver is so arranged the platform storage locking of choosing this quantity from big to small or according to frequency from low to high according to signal strength values.
4. the trans-regional automatic channel switching method of a kind of vehicle-mounted radio according to claim 1; It is characterized in that; Described method step further comprises: if program category in the said tabulation and said hobby program archives not in full conformity with; So after correspondence is accomplished the hobby program meet, the quantity in residue storage radio station is arranged from low to high from big to small or according to frequency according to signal strength values FSU and is chosen the storage locking.
5. the trans-regional automatic channel switching method of a kind of vehicle-mounted radio according to claim 1 is characterized in that, said signal strength values rank is divided into 0 to 100 grade, signal strength values is equaled 60 be set at said threshold value.
6. the trans-regional automatic channel switching method of a kind of vehicle-mounted radio according to claim 1; It is characterized in that, saidly be accustomed to locking hobby program, set up hobby program archives: be that hobby program order that the user is locked in broadcast receiver in an area is as liking the program archives according to the user.
7. the trans-regional automatic channel switching method of a kind of vehicle-mounted radio according to claim 1; It is characterized in that; Saidly be accustomed to locking hobby program, set up hobby program archives: be to search platform for the first time from the user to begin to add up the frequency that the user uses different radio station to occur in setting-up time, the different radio station frequency of occurrences is represented with F, and then obtain the frequency of utilization tabulation of current storage platform according to the user; The each listening period that gets into each radio station of record; And each radio station in the setting-up time listened to the statistics of total time, and each radio station is listened to total time be labeled as T, F and T are brought into formula γ=(30+F)
2+ T carries out sequence arrangement by size with a plurality of γ numerical value and sets up hobby program archives.
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