CN103095388B - Radio station automatic switching method, device and vehicle-mounted information and entertainment system - Google Patents
Radio station automatic switching method, device and vehicle-mounted information and entertainment system Download PDFInfo
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Abstract
The present invention is a kind of radio station automatic switching method, device and car-mounted terminal information entertainment, method is as follows: the radio signals intensity that S101. is more current to be listened to and radio signals intensity threshold, the signal strength signal intensity listening to radio station as current is not less than the radio signals intensity threshold preset, then continuation broadcasting is current listens to radio station, otherwise, carry out next step operation; S102. judge positioning signal strength, if current framing signal is weak signal, then continuation broadcasting is current listens to radio station, if strong signal, then carries out broadcasting station search and listens to operation.The radio station switching condition that this method adopts radio signals intensity to combine with positioning signal strength, improves the accuracy that automatic station switches, is particularly useful for vehicle-mounted information and entertainment system.
Description
Technical field
The present invention relates to broadcast receiver field, be specifically related to a kind of radio station automatic switching method, device and vehicle-mounted information and entertainment system.
Background technology
Current wireless application is very general, automotive field and mobile terminal application also widely.Traditional broadcast receiver, after user search to a certain radio station, this program of radio station is only fixedly presented on screen by broadcast receiver, and continues to play this radio station.
If broadcast receiver moves from the radio station action scope in this radio station to the region the action scope of radio station gradually, broadcast receiver receives the signal in this radio station will be more and more weak, and the quality of broadcast receiver uppick worse and worse.If entered into new radio station action scope in driving conditions, original radio signals just there will be to receive badly does not have signal even, traditional broadcast receiver automatically can not refresh the new radio station of search and play, now user needs manually channel selection again, complex operation, especially in automotive field, car owner often operates channel selection when driving simultaneously, extremely inconvenience and affect driving safety.Meanwhile, traditional broadcast receiver, after being switched to new radio station, listens to the station genre in radio station before not preserving, and broadcast receiver does not also carry out Type division to each radio station in advance, when causing user to need manually to reselect go back to the radio station belonging to original classification, the operating time is long, and difficulty is large.Especially in automotive field, driver needs time and the new channel selection of dispersion energy duplicate removal, brings certain potential safety hazard to driving.
(application number is 201010127602.5 to Chinese invention patent application, the applying date is on 03 05th, 2010) propose a kind of wireless channel switching method and device, it mainly plans the program start time listened to and frequency of radio station corresponding to this program start time as switching condition by presetting, by listening equipment according to program start time, by the frequency of radio station corresponding to radio reception frequency inverted to this program start time.This technology achieves radio station accurately and switches.But as when switching condition meets, broadcast receiver is not in the radio signals overlay area of this predeterminated frequency point, cannot listen to normally, so the method is due to the unicity of switching condition, cause range of application little, be usually only suitable for the broadcast receiver being positioned at an administrative region for a long time.
(application number is 201010256170.8 to Chinese invention patent application, the applying date is on 08 17th, 2010) propose a kind of mobile terminal and radio station searching method thereof and device, this technology is mainly: located by GPS location, base station CELLID or the mode of Wi-Fi location obtains the current location information of mobile terminal, the second area residing for described mobile terminal is obtained according to current location information, judge whether second area changes with the first area before belonging to radio station, if change, then search for frequency of radio station corresponding to second area again according to second area.This process employs the administrative information region data stored in mobile terminal, the geographical position obtained by the positioning function assembly on mobile terminal judges local terminal whether spanning different districts, thus achieves the function in automatic switchover radio station.But the radio station switching condition of this application is only the division judging administrative region, and it depends on the administrative information region data that mobile terminal stores.Be in same administrative region for local terminal, but the area be positioned at outside radio station action scope (existing middle finger radio signals overlay area) outer or radio station action scope, even if the station information that local terminal receives is very weak even without when listening to signal, owing to still not meeting the spanning different districts switching condition described in the method, still will cannot realize automatically switching, switch accuracy, sensitivity and poor real.And, the method is in automatically switching operation, preserve institute when being positioned at first area and listen to the type of radio present, also do not carry out broadcasting station search when searching for new radio station by type and select with brush, user also needs manual selection, search for and listened to radio station is of the same type before radio station.So the method exists technological deficiency in practical application, be difficult to meet the requirements at the higher level of people to radio station intellectuality, hommization.
Also having a kind of prior art to be by arranging radio signals intensity threshold at local terminal as switching condition, when the radio signals listened in real time is lower than radio signals intensity threshold, carries out switching and listening to operation.But, this kind of prior art have ignored local device and there is the possibility that transience listens to blind spot, area of weakness, as the radio module in vehicle-mounted information and entertainment system, when automobile is through cavern, tunnel, will be considered as in prior art meeting switching condition, practicality is not high.
Some radio station techniques are also had to propose in prior art, as introduced the technical characteristic of classified search when broadcasting station search, also namely on the basis meeting radio station switching condition, search for by type when searching for new radio station, especially carry out new broadcasting station search according to the type in local terminal listened to radio station before handover, thus solve the defect that cannot search classifiably existing for above-mentioned prior art.
In sum, existing radio station switching condition or be radio signals intensity threshold, or be spanning different districts, or for specifying the concrete listening period in concrete radio station, switching condition, all by monistic limitation, also exists the defect that switching condition is unreasonable, inaccurate, application is poor.The switching condition in radio station is a main trend of current radio station development, affects accuracy, reasonability and practicality that radio station switches.In addition, how improving switching efficiency when carrying out radio station and switching, the station genre that user's uppick more is fast liked oneself is also the emphasis of radio station Study on Handover Technology.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of radio station automatic switching method is provided, the radio station switching condition that this method adopts radio signals intensity to combine with positioning signal strength, improve the accuracy that automatic station switches.
The object of the invention is to be achieved through the following technical solutions:
Radio station automatic switching method, on local device, arrange a radio signals intensity comparing unit in advance, method step is as follows:
S101. the more current radio signals intensity listened to and radio signals intensity threshold, the signal strength signal intensity listening to radio station as current is not less than the radio signals intensity threshold preset, then continue to play currently to listen to radio station, otherwise, carry out next step operation;
S102. judge positioning signal strength, if current framing signal is weak signal, then continuation broadcasting is current listens to radio station, if strong signal, then carries out broadcasting station search and listens to operation.
In such scheme, first with radio signals intensity threshold for Rule of judgment, only when current listen to radio signals intensity lower than threshold value, next step switching judging of Fang Jinhang works, reduce the frequent degree that whole radio station handover operation starts, under the condition meeting radio signals intensity threshold, do not switch at once, but again according to the power of framing signal to judge whether to perform follow-up handover operation.The mode adopting this dual switching condition to combine, avoids and listens to blind spot, area of weakness and still carry out the misoperation of radio station switching when local device is in transience.Meanwhile, it is relative to the spanning different districts condition switching mode in existing, switches sensitivity and real-time is all largely increased; Relative to the appointment switching frequency in existing with specify switching time, application is stronger.
The frequent degree of switching condition judgement is carried out for optimizing such scheme, the more current radio signals intensity listened to and radio signals intensity threshold described in step S101, be preferably and compare the time in radio signals intensity comparing unit setting one timing, the radio signals intensity that timing ratio is more current to be listened to and radio signals intensity threshold, comparatively the time can set this timing ratio as the case may be.
In said method, carry out broadcasting station search described in step S102 and listen to operation, broadcasting station search operation wherein can adopt in the long-range mode setting up server, remote server is set up station information database, by local terminal to remote server sending station searching request, remote server calls station information database, to search out the station information that meets broadcasting station search request and to feed back to local terminal, listens to for local terminal.Aforementioned is the mode of existing broadcasting station search, and long-range mode of building storehouse and long-range search also exists: the reliable communications sex chromosome mosaicism of local terminal and remote server, communication delay problem; Remote server data treating capacity and the large problem of load capacity; Long-rangely build storehouse Cost Problems, wireless communication network challenge between remote server and a large amount of local device etc.In addition, broadcasting station search mode in existing, mostly be randomness and search for effective radio station, or be conditional search, as designated area, fail to propose to search classifiably by station genre, this is also do not preserve the current station genre listened to based on local terminal and existing middle station information builds the problem that station genre is not considered in storehouse, though possess the RDS radio station technique carrying auxiliary data (as station genre) to be applied at home, but be still traditional station based on most domestic radio station, its signal does not carry station genre, this just causes when searching for and being switched to new radio station, fail to continue the described current station genre listened to, can not meet user's fast search and switch the needs in uppick same type radio station.Based on the defect existing for above-mentioned prior art, the present invention adopts following preferred version to solve:
Carry out broadcasting station search described in step S102, being preferably specified radio type is that condition is searched for; As the correspondence design that technical scheme realizes, arrange a station information database at local device, this station information database purchase has frequency of radio station point and station genre; One control unit is set at local terminal, for according to specified radio type search condition, calls station information database, with search out meet search condition associated station information for listening to.
In above-mentioned preferred version, achieve on the one hand and can carry out at local terminal the object that searches classifiably, overcome in existing search technique, as radio station be the traditional station of non-RDS time, because station information does not comprise the defect cannot knowing station genre in Search Results that station genre causes, and make the present invention be satisfied with the classified search in all radio station, be particularly useful for the present status in China that traditional station accounting is large.Simultaneously, in above scheme, be different from existing middle by the scheme of station information Database at remote server, one memory cell is set at local terminal and builds storehouse with this locality realizing station information data, relevant broadcasting station search is completed according to search condition by the control unit being located at local terminal equally, carry out again listening to operation, thus achieve meet search condition station information search complete at local terminal, improve search efficiency, avoid prior art long-range build that storehouse scheme produces build storehouse Cost Problems, reliable communications sex chromosome mosaicism, load capacity and the excessive server that easily causes of data processing amount damage, so that impact search success rate problem, and the search efficiency problem to cause due to telecommunication time delay.Simultaneously, owing to being limited by conventional art present situation in prior art, and/or the existing local terminal limitation that memory capacity originally has when designing, all station information is built storehouse at remote server, and reckon without the problems such as the load capacity of remote server is large and communication reliability is low, station information is built storehouse in local device by the present invention, and search link is completed by local terminal control unit, no matter in cost control, reliable communications, search feedback are rapid etc., be obtained for and significantly improve, convenient and swift, there is significant technique effect and Economic Application prospect.
As further preferred, described control unit calls station information database according to described search condition, search out the associated station information meeting search condition, the associated station information meeting specified radio type search condition is generally the associated station information aggregate of multiple station information composition, the action scope that there is some radio station in set does not cover the possibility of current location residing for local terminal, so that can not effectively listen to.So, the present invention is after the set searching out the associated station information composition meeting search condition, control unit also passes through obtained local device current location as condition, brush is selected the radio station that radio station action scope in associated station information aggregate covers described local device current location and is listened to operation for follow-up, as the correspondence design that technology realizes, described station information database is except storing frequency of radio station point and station genre, also store radio station action scope, this radio station action scope comprises radio signals overlay area.
In existing, from station information database, the radio station action scope matched with local device current location selected by brush, this radio station action scope is all directly radio signals overlay area, due to radio signals overlay area in practice, by transmission directivity, the impact of transmission environment and other signal disturbing, mostly be irregularly shaped region, when this just makes directly to adopt local device current location and radio signals overlay area matching primitives, computing formula is complicated, excessive to cause the performance requirement of search unit, especially when adopting remote server search, due to One's name is legion, this performance requirement will be very outstanding, also the high-lighting advantage that search procedure of the present invention is arranged on local terminal is embodied thus.For simplifying search procedure further, reduce the requirement to search unit performance, the above-mentioned local device current location that utilizes, as condition, is carried out the preferred version of effective radio station brush choosing, is specially:
S103-1. from described associated station information aggregate, the station information subset that radio station scope minimum enclosed rectangle covers described local device current location selected by brush, described radio station scope minimum enclosed rectangle for radio signals coverage area boundaries point be the rectangle that tolerance forms with latitude and longitude value;
S103-2. from described station information subset, brush is selected radio signals coverage and is covered the station information of described local device current location for listening to;
In this preferred version, described station information database is except comprising frequency of radio station point, station genre and radio signals overlay area, and described radio station action scope further comprises radio station scope minimum enclosed rectangle.
The technological selection of effectively radio station double layer area search above, core is the concept proposing radio station scope minimum enclosed rectangle, the judgement whether covered is carried out in advance with the rectangle of systematicness, it carries out the judgement whether covered relative to erose radio signals overlay area, amount of calculation greatly reduces, and maps speed faster.
In the technological selection of above-mentioned effective radio station double layer area search, brush from station information subset in step S103-2 and select the station information that radio signals coverage covers described local device current location, this station information also may be multiple radio station, for realizing best audibility, radio station location point is stored by setting up in station information database, control unit finds out station location point and the nearest radio station of local device current location, to listen to.
Second object of the present invention is to provide a kind of radio station automatic switching control equipment, it is characterized in that, comprising:
Memory cell, at local terminal store electricity station information database;
Positioning unit, for obtaining equipment current location information and framing signal;
Be arranged at the radio signals intensity comparing unit of local terminal, the more current radio signals intensity listened to and radio signals intensity threshold, listen to the signal strength signal intensity in radio station as current lower than the radio signals intensity threshold preset, activate the work of positioning signal strength comparing unit;
Be arranged at the positioning signal strength comparing unit of local terminal, after radio signals strength ratio comparatively unit activating, judge positioning signal strength, if current framing signal is strong signal, then output switching order is to control unit;
Be arranged at the control unit of local terminal, receive switching command to carry out broadcasting station search and to listen to operation.
Above scheme, except the advantage possessing previous searches method and possess, also achieves the function that local terminal station information builds storehouse and search.
Preferably, described radio signals intensity comparing unit is timing comparing unit.
Search for the preferred of judgement as a kind of, described control unit carries out broadcasting station search according to the search condition preset and listens to operation, and described default search condition is radio present type.Control unit is provided with:
First search module, searches out associated station information aggregate according to search condition;
Second search module, from described associated station information aggregate, the station information subset that radio station scope minimum enclosed rectangle covers described local device current location selected by brush;
3rd search module, from described station information subset, the station information that radio signals coverage covers described local device current location selected by brush;
In this preferred version, described station information database contains frequency of radio station point, station genre and radio signals overlay area and scope minimum enclosed rectangle, contains radio signals overlay area and scope minimum enclosed rectangle also known as radio station action scope.
For realizing the renewal of station information database in local terminal memory cell, described broadcasting station search device also can be provided with wireless update module, it is connected with remote server radio communication, remote server storage has the station information data bank of real-time update, wireless update module obtains up-to-date station information data from remote server, and is updated to memory cell.
The present invention also aims to provide a kind of vehicle-mounted information and entertainment system, it is characterized in that, this system comprises described broadcasting station search device, wherein, described control unit, memory cell are all carried in on-vehicle host, the navigation positioning module in positioning unit directly employing system; Native system is also provided with human-computer interaction interface, for providing man-machine interaction between control unit and user.Native system utilizes data-handling capacity and the data storage capacities of on-vehicle host itself on the one hand, optimize system resource, on the other hand, man-machine interaction unit directly adopts touch screen, provide the user search condition interface display and the search result interfaces display of enough widescreens.And the navigation positioning module in positioning unit directly employing system, embody resource further and make full use of rate.When the present invention is applied in vehicle-mounted information and entertainment system, except highlighting the advantage of above-mentioned resource optimization, also avoid in prior art, because vehicle is in traveling for a long time, the problem of large the caused telecommunication validity difference of signal intensity and poor reliability.
The present invention has the following advantages and beneficial effect compared to existing technology:
(1) the radio station switching condition that combines with positioning signal strength of radio signals intensity of the present invention, improves accuracy, reasonability and real-time that automatic station switches;
(2) the preferred search condition of the present invention is for identical with current station genre of listening to, and facilitates user to listen to similar radio station fast;
(3) the present invention is by adopting the technological selection of fixed-position searching, improves validity and the real-time of Search Results;
(4) the present invention is by adopting the preferred version of radio station scope minimum enclosed rectangle and the bilayer search of radio signals overlay area, achieves the high efficiency of search procedure in switching;
(5) the present invention by by search procedure, radio station switches and station information builds storehouse in local terminal, improve search, switching efficiency, avoid that prior art is long-range builds storehouse defect that scheme produces; In conjunction with aforementioned 2nd section of advantage, embody the present invention and be applicable to RDS radio station and traditional station;
(6) the present invention is by arranging a wireless update module, and remote server is only as up-to-date station information data back, can realize the renewal of local terminal station information database;
(7), when the present invention is applied in vehicle-mounted information and entertainment system, because automatic switching control equipment each hardware in radio station all can directly load or utilize the existing hardware device of vehicle-mounted information and entertainment system itself, optimizes resource utilization, promote practical.
Accompanying drawing explanation
Fig. 1 is the system architecture diagram of the present invention when being applied to vehicle-mounted information and entertainment system;
Fig. 2 is the structure principle chart of microprocessor;
Fig. 3 is the overall flow figure automatically switched in radio station;
Fig. 4 is the flow chart of the similar search in radio station.
Embodiment
Below to present invention employs category division preferably after method, in conjunction with the embodiments and accompanying drawing be described in further detail, but embodiments of the present invention are not limited thereto.
Generally speaking, central scope of the present invention is the radio station switching condition adopting radio signals intensity threshold to combine with positioning signal strength in the switching condition of radio station, avoid in prior art, listen to blind spot, area of weakness and still carry out the misoperation of radio station switching when local device is in transience, improve accuracy, reasonability and real-time that automatic station switches.In addition, switching device shifter provided by the invention, its search procedure and build storehouse and all concentrate on local terminal, avoids the long-range storehouse scheme of building of prior art and produces defect.And adopt the search condition of specifying radio present type, make the present invention be applicable to RDS radio station or other traditional station.To sum up, the present invention is also made to be particularly useful for vehicle-mounted information and entertainment system.
Below in conjunction with broadcasting station search application of installation, in the embodiment of vehicle-mounted information and entertainment system and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, vehicle-mounted information and entertainment system, comprising:
Memory cell, at local terminal store electricity station information database;
Touch screen, as the man-machine interaction unit between radio station automatic switching control equipment and user, provides man-machine interaction;
Microprocessor, as Bootload and the operating component of broadcasting station search device, coordinates work and data, the instruction interaction of each functional unit in vehicle-mounted information and entertainment system;
Navigation positioning module, as the positioning unit in the automatic switching control equipment of radio station, obtain equipment current location information and framing signal, it is connected with positioning antenna;
Wireless update module, be connected with remote server (not shown) radio communication by radio antenna, remote server storage has the station information data bank of real-time update, wireless update module obtains up-to-date station information data from remote server, and be updated to memory cell, it is pointed out that the present invention in use, remote server can only as up-to-date station information data back;
Tuner, is connected with reception antenna, listens to radio signals with tuning manner;
Audio process, is connected with loud speaker, exports for audio frequency.
As described in Figure 2, microprocessor is provided with:
Radio signals intensity timing comparing unit, the radio signals intensity that timing ratio is more current to be listened to and radio signals intensity threshold, listen to the signal strength signal intensity in radio station as current lower than the radio signals intensity threshold preset, activate the work of positioning signal strength comparing unit;
Positioning signal strength comparing unit, after radio signals strength ratio comparatively unit activating, judges positioning signal strength, if current framing signal is strong signal, then output switching order is to control unit;
Control unit, receives switching command to carry out broadcasting station search and to listen to operation, is provided with: the first search module, searches out associated station information aggregate according to search condition; Second search module, from described associated station information aggregate, the station information subset that radio station scope minimum enclosed rectangle covers described local device current location selected by brush; 3rd search module, from described station information subset, the station information that radio signals coverage covers described local device current location selected by brush.
In the present embodiment, described station information database adopts information column form to build storehouse, and scope can be the whole nation, the whole province or carries out building storehouse according to actual needs, and station information row use Sqlite embedded database to realize, and each station information row comprise following field:
Radio station index value (RadioIndex): this field is used for as radio station unique index value; Data type: integer;
Frequency of radio station point (RadioFreq): this field is for recording frequency of radio station; Data type: floating type, such as: 97.1;
Radio station scope minimum enclosed rectangle (RadioRect): this field is for recording radio station scope minimum enclosed rectangle longitude and latitude minimum value and maximum; Data type: character string, such as: 116.2,38.4,118.3,40.12;
Radio signals overlay area Polygon (RadionPolygon): this field is for recording the polygonal boundary point of radio station scope; Data type: character string, such as: 116.2,38.4,116.2,40.12,118.3,40.12;
Station genre (RadioType): this field for recording station genre, such as: music, traffic, physical culture etc.; Data type: integer, such as: 1: music; 2: traffic; 3: physical culture;
Station location point (RadioPosition): this field is for recording station location latitude and longitude value; Data type: character string, such as: 117.5,38.9;
Radio station detailed program inventory; Etc..
Below in detail radio station of the present invention automatic concrete grammar is described in detail, but is followingly only the comparatively concrete preferred version of method, in concrete enforcement, can according to circumstances be optimized some operation or condition.
Radio station automatic switching method, as shown in Figure 3, step is as follows:
S101. with 3 seconds for interval, the radio signals intensity that timing ratio is more current to be listened to and radio signals intensity threshold, the signal strength signal intensity listening to radio station as current is not less than the radio signals intensity threshold preset, then continue to play currently to listen to radio station, otherwise, carry out next step operation;
S102. judge positioning signal strength, if current framing signal is weak signal, then continuation broadcasting is current listens to radio station, if strong signal, then carries out broadcasting station search and listens to operation.
In said method, next step operation will be stopped as condition does not meet, terminate.
In said method, as shown in Figure 4, broadcasting station search is as follows with the operation of listening to:
S103-1 control unit obtains mobile unit current location and the current station genre listened to;
The first search module in S103-2 control unit receives the search condition of this specified radio type, station information database is called from memory cell, search corresponding index, the all relevant station information set Record1 in (the present embodiment is preset as the whole country) this kind radio station in certain limit in inquiry, query statement is as follows: " SELECT*FROMRadioPostionWHERERadioType=1 ";
The second search module in S103-3 control unit uses radio station scope minimum enclosed rectangle condition to filter: from station information set Record1, filter out the station information subset Record2 of mobile unit current location in scope minimum enclosed rectangle inside, radio station, such as: certain radio station scope minimum enclosed rectangle is: 116.2,38.4,118.3,40.12; If current location is 116.3,39.6, then current location is inner at minimum enclosed rectangle, is considered as radio station scope minimum enclosed rectangle and covers mobile unit current location;
The 3rd search module in S103-4 control unit uses radio signals overlay area Polygon condition to filter: from station information subset Record2, filter out mobile unit current location drop on record Record3 within the scope of this radio station, then by this record Record3;
S103-5 is in station information database, and control unit finds out station location point and the nearest radio station of local device current location, realizes follow-up operation of listening to listen to according to its frequency by tuner and audio process, loud speaker.
In said method, if arbitrary search is without eligible record, then shows issueless information directly to touch screen, so far operate end.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (3)
1. radio station automatic switching method, is characterized in that, on local device, arrange a radio signals intensity comparing unit in advance, method step is as follows:
S101. the more current radio signals intensity listened to and radio signals intensity threshold, the signal strength signal intensity listening to radio station as current is not less than the radio signals intensity threshold preset, then continue to play currently to listen to radio station, otherwise, carry out next step operation;
The described more current radio signals intensity listened to and radio signals intensity threshold, in the radio signals intensity comparing unit setting timing ratio comparatively time, the radio signals intensity that timing ratio is more current to be listened to and radio signals intensity threshold;
S102. judge positioning signal strength, if current framing signal is weak signal, then continuation broadcasting is current listens to radio station, if strong signal, then carries out broadcasting station search and listens to operation;
Described carry out broadcasting station search with listen to operation, with specified radio type for condition is searched for; Arrange a station information database at local device, this station information database purchase has frequency of radio station point and station genre; One control unit is set at local terminal, for according to specified radio type search condition, calls station information database, search out meet search condition associated station information for listening to;
After the set searching out the associated station information composition meeting search condition, control unit also passes through obtained local device current location as condition, brush is selected the radio station that radio station action scope in associated station information aggregate covers described local device current location and is listened to operation for follow-up, and described station information database purchase has radio signals overlay area and radio station scope minimum enclosed rectangle;
Utilize local device current location as condition, carry out the brush choosing of effective radio station, be specially:
S103-1. from described associated station information aggregate, the station information subset that radio station scope minimum enclosed rectangle covers described local device current location selected by brush, described radio station scope minimum enclosed rectangle for radio signals coverage area boundaries point be the rectangle that tolerance forms with latitude and longitude value;
S103-2. from described station information subset, brush is selected radio signals coverage and is covered the station information of described local device current location for listening to.
2. radio station automatic switching method according to claim 1, is characterized in that: in station information database, set up storage station location, and control unit finds out station location point and the nearest radio station of local device current location, to listen to.
3. radio station automatic switching control equipment, is characterized in that, comprising:
Memory cell, at local terminal store electricity station information database;
Positioning unit, for obtaining equipment current location information and framing signal;
Be arranged at the radio signals intensity comparing unit of local terminal, the more current radio signals intensity listened to and radio signals intensity threshold, listen to the signal strength signal intensity in radio station as current lower than the radio signals intensity threshold preset, activate the work of positioning signal strength comparing unit; Described radio signals intensity comparing unit is timing comparing unit;
Be arranged at the positioning signal strength comparing unit of local terminal, after radio signals strength ratio comparatively unit activating, judge positioning signal strength, if current framing signal is strong signal, then output switching order is to control unit;
Be arranged at the control unit of local terminal, receive switching command to carry out broadcasting station search and to listen to operation;
Described control unit carries out broadcasting station search according to the search condition preset and listens to operation, and default search condition is radio present type; Control unit is provided with:
First search module, searches out associated station information aggregate according to search condition;
Second search module, from described associated station information aggregate, the station information subset that radio station scope minimum enclosed rectangle covers described local device current location selected by brush;
3rd search module, from described station information subset, the station information that radio signals coverage covers described local device current location selected by brush;
Described station information database contains frequency of radio station point, station genre and radio signals overlay area and scope minimum enclosed rectangle.
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| CN201210585496.4A CN103095388B (en) | 2012-12-30 | 2012-12-30 | Radio station automatic switching method, device and vehicle-mounted information and entertainment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753621A (en) * | 2013-12-25 | 2015-07-01 | 博世汽车部件(苏州)有限公司 | Microprocessor, system and method for channel switching of vehicle radio |
| CN104753620A (en) * | 2013-12-31 | 2015-07-01 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN104917578A (en) * | 2014-03-10 | 2015-09-16 | 昆山研达电脑科技有限公司 | Transregional automatic radio station switching method for vehicle-mounted radio |
| CN104868964A (en) * | 2014-12-19 | 2015-08-26 | 北汽福田汽车股份有限公司 | Automatic on-board radio channel switching system and method |
| CN110858785A (en) * | 2018-08-23 | 2020-03-03 | 安波福电子(苏州)有限公司 | Intelligent updating system and method for pre-stored radio station of vehicle-mounted broadcast |
| CN110858784A (en) * | 2018-08-23 | 2020-03-03 | 安波福电子(苏州)有限公司 | Automatic switching system and method for vehicle-mounted broadcasting station |
| CN109361412A (en) * | 2018-11-23 | 2019-02-19 | 广东电网有限责任公司 | Vehicle-mounted radio automatic frequency adjustment device and method based on geographical location |
| CN109586828A (en) * | 2018-11-29 | 2019-04-05 | 深圳市车联天下信息科技有限公司 | Broadcast station information acquisition methods, device and radio |
| CN109450580A (en) * | 2018-12-28 | 2019-03-08 | 斑马网络技术有限公司 | Vehicle-mounted radio control method, device, vehicle-mounted radio and vehicle |
| CN113890661B (en) * | 2021-08-27 | 2024-02-02 | 惠州华阳通用电子有限公司 | Radio station switching method based on digital signal broadcasting |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324993A (en) * | 2011-06-02 | 2012-01-18 | 四川长虹佳华信息产品有限责任公司 | Transregional automatic radio station switching method for vehicle-mounted radio |
| CN102439882A (en) * | 2009-03-27 | 2012-05-02 | Jvc建伍株式会社 | Broadcasting receiver, broadcasting receiver control method, broadcast station identifying method, broadcasting receiver control program, and broadcast station identifying program |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040030562A1 (en) * | 2002-08-08 | 2004-02-12 | Williams Douglas M. | Composite energy emission information system for improved safety to site personnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102439882A (en) * | 2009-03-27 | 2012-05-02 | Jvc建伍株式会社 | Broadcasting receiver, broadcasting receiver control method, broadcast station identifying method, broadcasting receiver control program, and broadcast station identifying program |
| CN102324993A (en) * | 2011-06-02 | 2012-01-18 | 四川长虹佳华信息产品有限责任公司 | Transregional automatic radio station switching method for vehicle-mounted radio |
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