CN103986483B - A kind of system and method for eliminating mobile phone FM vacation platforms - Google Patents
A kind of system and method for eliminating mobile phone FM vacation platforms Download PDFInfo
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- CN103986483B CN103986483B CN201410235388.3A CN201410235388A CN103986483B CN 103986483 B CN103986483 B CN 103986483B CN 201410235388 A CN201410235388 A CN 201410235388A CN 103986483 B CN103986483 B CN 103986483B
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Abstract
The invention discloses a kind of systems for eliminating mobile phone FM vacation platforms, including：Detection module, for testing simultaneously recording noise interference RSSI value and radio station RSSI value；Control module is used to form noise jamming situation table and actual search station list；Judgment module, the magnitude relationship for judging radio station RSSI value and RSSI threshold values；Searching module, for searching the noise jamming RSSI value corresponded in actual search station list at frequency point in noise jamming situation table；Computing module, for calculating the difference between RSSI value and noise jamming RSSI value.The invention also discloses a kind of methods for eliminating mobile phone FM vacation platforms.The present invention is by measuring in mobile phone in addition to FM modules, the noise jamming situation that other circuit modules generate FM modules, pass through the noise jamming situation at the corresponding radio station of elimination during actual search, so that user does not search false platform during search radio station automatically, better experience is provided to the user.
Description
Technical field
The present invention relates to communication fields, and in particular to a kind of system and method for eliminating mobile phone FM vacation platforms.
Background technology
Smart mobile phone of today, which is substantially all, has FM function, and which enhance the amusement multimedia experiences of user so that uses
Family can enjoy the enjoyment that FM receiver is brought at any time.For the pcb of FM partial circuits when although mobile phone hardware designs
（Printed Circuit Board, printed circuit board）Cabling can be subject to insulation blocking, but increasingly with cell-phone function
More, the hardware circuit module needed also accordingly increases, and in the spaces limited mobile phone pcb, the isolation of FM modular circuits part is protected
Shield becomes more difficult, inevitably there is noise jamming of other circuit modules to FM modules.
FM chips in mobile phone are very sensitive to noise, it is easy to by the noise jamming of other circuit modules, cause certainly
The problem of searching false platform when dynamic search channel, which seems more serious under weak signal environment.Judge in the prior art
Some is effectively according to RSSI>- 96dbm judges, if in the noise jamming RSSI of some frequency point>- 96dbm, then can be by
Think to search a radio station, this is not a real radio station in fact, but noise jamming, and here it is generations to search vacation
The reason of platform.
In the prior art using the judgement search effective RSSI threshold values in radio station are improved, to filter out false platform, but the disadvantage is that improve
The true platform in part is also filtered out together during RSSI threshold bands carry out tuning so that user experience is bad.
In addition, interference is reduced by the insulation blocking of pcb cablings on hardware, but increasingly with smart mobile phone function
More, circuit becomes increasingly complex, it is difficult to accomplish extraordinary insulation blocking, it is dry that larger noise is still will produce at certain frequency points
It disturbs, so as to cause false platform is searched.
Invention content
The purpose of the present invention is to provide a kind of system and method for eliminating mobile phone FM vacation platforms, are removed by measuring in mobile phone
Outside FM modules, the noise jamming situation that other circuit modules generate FM modules is corresponded to during actual search by eliminating
Noise jamming situation at radio station carries so that user does not search false platform during search radio station automatically for user
For preferably experiencing.
In order to achieve the above object, the invention is realized by the following technical scheme：A kind of system for eliminating mobile phone FM vacation platforms,
Its main feature is that including：
Detection module, for testing and being recorded in noise jamming RSSI value and radio station in entire FM frequency ranges at each frequency point
RSSI value；
Control module is connect with the detection module, is used to form noise jamming situation table and actual search station list；
Judgment module is connect with the control module, magnitude relationship for judging radio station RSSI value and RSSI threshold values and
The magnitude relationship of difference and RSSI threshold values between radio station RSSI value and noise jamming RSSI value；
Searching module is connect with the control module, for searching actual search radio station row in noise jamming situation table
The noise jamming RSSI value at frequency point is corresponded in table；
Computing module is connect with the control module, dry with noise for radio station RSSI value in actual search station list
Disturb the difference between the noise jamming RSSI value for corresponding to frequency point in situation table.
The RSSI threshold values is -96dbm.
A method of mobile phone FM vacation platforms are eliminated, its main feature is that, it comprises the steps of：
Step 1, control module are according in addition to FM modules, remaining circuit module exists in the mobile phone that detection module is tested and is recorded
Noise jamming situation table is formed to the noise jamming RSSI value of FM modules at each frequency point in entire FM frequency ranges；
Step 2, control module are according to the FM modules that detection module is tested and is recorded in entire FM frequency ranges at each frequency point
Radio station RSSI value form actual search station list；
Step 3, searching module search in actual search station list in noise jamming situation table and correspond to making an uproar at frequency point
Acoustic jamming RSSI value；
It is corresponding with noise jamming situation table that step 4, computing module calculate radio station RSSI value in actual search station list
Difference between the noise jamming RSSI value of frequency point；
Step 5, judgment module by between radio station RSSI value and noise jamming RSSI value difference and RSSI threshold values carry out pair
Than；
If the difference between radio station RSSI value and noise jamming RSSI value is less than or equal to RSSI threshold values, control module is deleted
The radio station at frequency point is corresponded in actual search station list；
If difference between radio station RSSI value and noise jamming RSSI value is more than RSSI threshold values, control module is according to being more than
Frequency point corresponding to the difference of RSSI threshold values forms final search station list.
The step 1 is specially：
Step 1.1 after closing FM antennas, starts FM modules, and FM modules carry out searching for radio station automatically in entire FM frequency ranges；
Step 1.2, detection module are tested and are recorded in mobile phone in addition to FM modules, and remaining circuit module is in entire FM frequency ranges
To the noise jamming RSSI value of FM modules at each frequency point；
After step 1.3, FM modules search for radio station automatically, the noise jamming RSSI value of record is sent to by detection module
Control module；
Step 1.4, control module form noise jamming situation table according to noise jamming RSSI value.
In the noise jamming situation table remaining circuit module in entire FM frequency ranges at each frequency point to FM modules
Noise jamming RSSI value is recorded as RSSI1 respectively（f1）, RSSI1 (f2) ... RSSI1 (ft), wherein t are integer, and t is represented
The number of noise jamming situation table intermediate-frequeney point in entire FM frequency ranges.
The step 2 is specially：
Step 2.1 after opening FM antennas, starts FM modules, and FM modules carry out searching for radio station automatically in entire FM frequency ranges；
Step 2.2, detection module are tested and the radio station RSSI of the FM modules that record in entire FM frequency ranges at each frequency point
Value；
Step 2.3, judgment module compare radio station RSSI value and RSSI threshold values；
If radio station RSSI value is more than RSSI threshold values, control module forms reality according to the radio station RSSI value more than RSSI threshold values
Station list is searched on border.
Radio station RSSI value quilt of the FM modules in entire FM frequency ranges at each frequency point in the actual search station list
It is recorded as RSSI2 respectively（f1）, RSSI2 (f2) ... RSSI2 (fn), wherein n are integer, and n represents practical in entire FM frequency ranges
Search for the number of station list intermediate-frequeney point.
The noise jamming at frequency point is corresponded to actual search station list in the step 3 in noise jamming situation table
RSSI value is recorded as RSSI1 respectively（f1）, RSSI1 (f2) ... RSSI1 (fn), wherein n are integer, and n represents entire FM frequencies
The number of actual search station list intermediate-frequeney point in section.
Radio station RSSI value corresponds to frequency point with noise jamming situation table in actual search station list in the step 4
Difference between noise jamming RSSI value is recorded as RSSI3 respectively（f1）, RSSI3 (f2) ... RSSI3 (fn), wherein n is
Integer, n represent the number of actual search station list intermediate-frequeney point in entire FM frequency ranges.
A kind of system and method for eliminating mobile phone FM vacation platforms of the present invention have the following advantages compared with prior art：Pass through
It measures in mobile phone in addition to FM modules, the noise jamming situation that other circuit modules generate FM modules, during actual search
By the noise jamming situation at the corresponding radio station of elimination, so that user does not search vacation during search radio station automatically
Platform provides better experience to the user.
Description of the drawings
Fig. 1 is a kind of overall structure block diagram of system that eliminating mobile phone FM vacation platforms of the present invention.
Fig. 2 is noise jamming RSSI value of the embodiment of the present invention.
Specific implementation mode
The present invention is further elaborated by the way that a preferable specific embodiment is described in detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of system for eliminating mobile phone FM vacation platforms, including：Detection module 1, it is whole for testing and being recorded in
Noise jamming and radio station RSSI value in a FM frequency ranges at each frequency point；Control module 2 connect with the detection module 1, is used for
Form noise jamming situation table and actual search station list；Judgment module 3 is connect with the control module 2, for judging electricity
Difference between platform RSSI value and the magnitude relationship and radio station RSSI value and noise jamming RSSI value of RSSI threshold values and RSSI threshold values
Magnitude relationship；Searching module 4 is connect with the control module 2, for searching actual search electricity in noise jamming situation table
The noise jamming RSSI value at frequency point is corresponded in platform list；Computing module 5 is connect with the control module 2, is used for actual search
Radio station RSSI value corresponds to the difference between the noise jamming RSSI value of frequency point with noise jamming situation table in station list.RSSI
Threshold values is -96dbm.
A method of mobile phone FM vacation platforms are eliminated, are comprised the steps of：
Step 1, control module 2 are tested according to detection module 1 and in the mobile phone that records in addition to FM modules, remaining circuit module
Noise jamming situation table is formed to the noise jamming RSSI value of FM modules at each frequency point in entire FM frequency ranges；
The FM modules that step 2, control module 2 are tested and recorded according to detection module 1 each frequency point in entire FM frequency ranges
The radio station RSSI value at place forms actual search station list；
Step 3, searching module 4 search in actual search station list in noise jamming situation table and correspond to making an uproar at frequency point
Acoustic jamming RSSI value；
It is corresponding with noise jamming situation table that step 4, computing module 5 calculate radio station RSSI value in actual search station list
Difference between the noise jamming RSSI value of frequency point；
Step 5, judgment module 3 by between radio station RSSI value and noise jamming RSSI value difference and RSSI threshold values carry out pair
Than；
If the difference between radio station RSSI value and noise jamming RSSI value is less than or equal to RSSI threshold values, control module 2 is deleted
Except the radio station corresponded in actual search station list at frequency point；
If the difference between radio station RSSI value and noise jamming RSSI value is more than RSSI threshold values, control module 2 is according to big
Frequency point corresponding to the difference of RSSI threshold values forms final search station list.
The step 1 is specially：
Step 1.1 after closing FM antennas, starts FM modules, and FM modules carry out searching for radio station automatically in entire FM frequency ranges；
Step 1.2, detection module 1 are tested and are recorded in mobile phone in addition to FM modules, and remaining circuit module is in entire FM frequency ranges
To the noise jamming RSSI value of FM modules at interior each frequency point；
After step 1.3, FM modules search for radio station automatically, detection module 1 sends the noise jamming RSSI value of record
To control module 2；
Step 1.4, control module 2 form noise jamming situation table according to noise jamming RSSI value.
In the noise jamming situation table remaining circuit module in entire FM frequency ranges at each frequency point to FM modules
Noise jamming RSSI value is recorded as RSSI1 respectively（f1）, RSSI1 (f2) ... RSSI1 (ft), wherein t are integer, and t is represented
The number of noise jamming situation table intermediate-frequeney point in entire FM frequency ranges.
The step 2 is specially：
Step 2.1 after opening FM antennas, starts FM modules, and FM modules carry out searching for radio station automatically in entire FM frequency ranges；
Step 2.2, detection module 1 are tested and the radio station RSSI of the FM modules that record in entire FM frequency ranges at each frequency point
Value；
Step 2.3, judgment module 3 compare radio station RSSI value and RSSI threshold values；
If radio station RSSI value is more than RSSI threshold values, control module 2 is formed according to the radio station RSSI value more than RSSI threshold values
Actual search station list.
Radio station RSSI value quilt of the FM modules in entire FM frequency ranges at each frequency point in the actual search station list
It is recorded as RSSI2 respectively（f1）, RSSI2 (f2) ... RSSI2 (fn), wherein n are integer, and n represents practical in entire FM frequency ranges
Search for the number of station list intermediate-frequeney point.
The noise jamming at frequency point is corresponded to actual search station list in the step 3 in noise jamming situation table
RSSI value is recorded as RSSI1 respectively（f1）, RSSI1 (f2) ... RSSI1 (fn), wherein n are integer, and n represents entire FM frequencies
The number of actual search station list intermediate-frequeney point in section.
Radio station RSSI value corresponds to frequency point with noise jamming situation table in actual search station list in the step 4
Difference between noise jamming RSSI value is recorded as RSSI3 respectively（f1）, RSSI3 (f2) ... RSSI3 (fn), wherein n is
Integer, n represent the number of actual search station list intermediate-frequeney point in entire FM frequency ranges.
The RSSI threshold values is -96dbm.
Embodiment：
S1001 closes FM antennas（For usual earphone as FM antennas, it is in the case where being not inserted into earphone to close FM antennas）
Afterwards, start FM modules, FM modules carry out searching for radio station automatically in entire FM frequency ranges；
S1002, detection module 1（Such as utilize noise profiling tool tools）It tests and records and remove FM in mobile phone
Outside module, remaining circuit module in entire FM frequency ranges at each frequency point to the noise jamming RSSI value of FM modules, as shown in Figure 2
Certain mobile phone FM noise jamming situations, abscissa is frequency point information in figure, and ordinate is noise jamming RSSI value, from figure
In can intuitively find out other circuit modules generate FM modules in mobile phone noise jamming situation；
After S1003, FM module search for radio station automatically, the noise jamming RSSI value of record is sent to by detection module 1
Control module 2；
S1004, control module 2 form noise jamming situation table according to noise jamming RSSI value；
S1005, in noise jamming situation table remaining circuit module in entire FM frequency ranges at each frequency point to FM modules
Noise jamming RSSI value is recorded as RSSI1 respectively（f1）, RSSI1 (f2) ... RSSI1 (ft), wherein t are integer, and t is represented
The number of noise jamming situation table intermediate-frequeney point in entire FM frequency ranges；
S1006 is inserted into earphone, carries out auto channel search list, and detection module 1 records M modules in entire FM frequency ranges
RSSI value at different frequent points, value RSSI2（f1,f2……fn）It indicates, n is integer, and n represents practical in entire FM frequency ranges
Search for the number of station list intermediate-frequeney point；
S1007, judgment module 3 judge RSSI2（f1,f2……fn）Whether -96dbm is more than；
Then think that the radio station at the frequency point is effective radio station if it is greater than -96dbm, and preserves；
S1008 forms actual search station list, in actual search station list after search in entire FM frequency ranges
Radio station be denoted as respectively：F1, f2 ... fn, corresponding RSSI2 values are denoted as respectively：RSSI2 (f1), 2 (f2) ... RSSI2
(fn), n is integer, and n represents the number of actual search station list intermediate-frequeney point in entire FM frequency ranges；
S1009, searching module 4 are searching f1 from noise jamming situation table, and corresponding noise is dry at f2 ... fn frequency points
RSSI1 values are disturbed, are denoted as RSSI1 (f1) respectively, RSSI1 (f2) ... RSSI1 (fn), n are integer, and n is represented in entire FM frequency ranges
The number of actual search station list intermediate-frequeney point；
S1010, computing module 5, which calculates to correspond in actual search station list, removes other circuit moulds in mobile phone at frequency point
Block is denoted as RSSI3 respectively to the RSSI value after the noise jamming RSSI1 values of FM modules（f1）, RSSI3 (f2) ... RSSI3
(fn), RSSI3 (f1, f2 ... fn)=RSSI2 (f1, f2 ... fn)-RSSI1 (f1, f2 ... fn), n is integer, and n represents whole
The number of actual search station list intermediate-frequeney point in a FM frequency ranges；
S1011, judgment module 3 judge RSSI3（f1）, RSSI3 (f2) ... RSSI3 (fn) whether be more than -96dbm,
If f1, f2 ..., the RSSI3 values of some frequency point are less than or equal to -96dbm in fn, then control module 2 is in actual search
The corresponding radio station of the frequency point is removed in station list；
S1012 forms final search station list according to above-mentioned steps, and final station list of searching for is to eliminate noise to do
The search station list disturbed does not have false platform and exists in the list.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a kind of system for eliminating mobile phone FM vacation platforms, which is characterized in that include：
Detection module (1), for testing and being recorded in noise jamming RSSI value and radio station in entire FM frequency ranges at each frequency point
RSSI value；
Control module (2) is connect with the detection module (1), is used to form noise jamming situation table and actual search radio station row
Table；
Judgment module (3) is connect, the magnitude relationship for judging radio station RSSI value and RSSI threshold values with the control module (2)
And the magnitude relationship of the difference between radio station RSSI value and noise jamming RSSI value and RSSI threshold values；
Searching module (4) is connect with the control module (2), for searching actual search radio station in noise jamming situation table
The noise jamming RSSI value at frequency point is corresponded in list；
Computing module (5) is connect with the control module (2), for radio station RSSI value and noise in actual search station list
The difference between the noise jamming RSSI value of frequency point is corresponded in disturbed condition table；
If the difference between radio station RSSI value and noise jamming RSSI value is less than or equal to RSSI threshold values, control module is deleted practical
The radio station at frequency point is corresponded in search station list.
2. the system for eliminating mobile phone FM vacation platforms as described in claim 1, which is characterized in that the RSSI threshold values is -96dbm.
3. a kind of method for eliminating mobile phone FM vacation platforms, which is characterized in that comprise the steps of：
Step 1, control module (2) are tested according to detection module (1) and in the mobile phone that records in addition to FM modules, remaining circuit module
Noise jamming situation table is formed to the noise jamming RSSI value of FM modules at each frequency point in entire FM frequency ranges；
The FM modules that step 2, control module (2) are tested and recorded according to detection module (1) each frequency point in entire FM frequency ranges
The radio station RSSI value at place forms actual search station list；
Step 3, searching module (4) search the noise corresponded in actual search station list at frequency point in noise jamming situation table
Interfere RSSI value；
Step 4, computing module (5) calculate the frequency corresponding with noise jamming situation table of radio station RSSI value in actual search station list
Difference between the noise jamming RSSI value of point；
Step 5, judgment module (3) by between radio station RSSI value and noise jamming RSSI value difference and RSSI threshold values carry out pair
Than；
If the difference between radio station RSSI value and noise jamming RSSI value is less than or equal to RSSI threshold values, control module (2) is deleted
The radio station at frequency point is corresponded in actual search station list；
If the difference between radio station RSSI value and noise jamming RSSI value is more than RSSI threshold values, control module (2) basis is more than
Frequency point corresponding to the difference of RSSI threshold values forms final search station list.
4. the method for eliminating mobile phone FM vacation platforms as claimed in claim 3, which is characterized in that the step 1 is specially：
Step 1.1 after closing FM antennas, starts FM modules, and FM modules carry out searching for radio station automatically in entire FM frequency ranges；
Step 1.2, detection module (1) are tested and are recorded in mobile phone in addition to FM modules, and remaining circuit module is in entire FM frequency ranges
To the noise jamming RSSI value of FM modules at each frequency point；
After step 1.3, FM modules search for radio station automatically, the noise jamming RSSI value of record is sent to by detection module (1)
Control module (2)；
Step 1.4, control module (2) form noise jamming situation table according to noise jamming RSSI value.
5. the method for elimination mobile phone FM vacation platforms as described in claim 3 or 4, which is characterized in that the noise jamming situation
Remaining circuit module is recorded as the noise jamming RSSI value of FM modules at each frequency point in entire FM frequency ranges respectively in table
RSSI1 (f1), RSSI1 (f2) ... RSSI1 (ft), wherein t are integer, and t represents noise jamming situation table in entire FM frequency ranges
The number of intermediate-frequeney point.
6. the method for eliminating mobile phone FM vacation platforms as claimed in claim 3, which is characterized in that the step 2 is specially：
Step 2.1 after opening FM antennas, starts FM modules, and FM modules carry out searching for radio station automatically in entire FM frequency ranges；
Step 2.2, detection module (1) are tested and the radio station RSSI of the FM modules that record in entire FM frequency ranges at each frequency point
Value；
Step 2.3, judgment module (3) compare radio station RSSI value and RSSI threshold values；
If radio station RSSI value is more than RSSI threshold values, control module (2) forms reality according to the radio station RSSI value for being more than RSSI threshold values
Station list is searched on border.
7. the method for the elimination mobile phone FM vacation platforms as described in claim 3 or 6, which is characterized in that the actual search radio station
Radio station RSSI value of the FM modules in entire FM frequency ranges at each frequency point is recorded as RSSI2 (f1), RSSI2 respectively in list
(f2) ... RSSI2 (fn), wherein n are integer, and n represents the number of actual search station list intermediate-frequeney point in entire FM frequency ranges.
8. the method for eliminating mobile phone FM vacation platforms as claimed in claim 3, which is characterized in that noise jamming in the step 3
The noise jamming RSSI value at frequency point is corresponded to actual search station list in situation table is recorded as RSSI1 (f1) respectively,
RSSI1 (f2) ... RSSI1 (fn), wherein n are integer, and n represents actual search station list intermediate-frequeney point in entire FM frequency ranges
Number.
9. the method for eliminating mobile phone FM vacation platforms as claimed in claim 3, which is characterized in that actual search in the step 4
The difference that radio station RSSI value is corresponded to noise jamming situation table between the noise jamming RSSI value of frequency point in station list is divided
It is not recorded as RSSI3 (f1), RSSI3 (f2) ... RSSI3 (fn), wherein n are integer, and n is represented actually to be searched in entire FM frequency ranges
The number of rope station list intermediate-frequeney point.
10. as claimed in claim 3 eliminate mobile phone FM vacation platforms method, which is characterized in that the RSSI threshold values be-
96dbm。
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| CN104243077A (en) * | 2014-08-26 | 2014-12-24 | 惠州市凯越电子有限公司 | Anti-interference automatic channel search method and device for radio receiver |
| CN105049135B (en) * | 2015-05-29 | 2017-08-04 | 上海斐讯数据通信技术有限公司 | The Conduction Interference adjustment method and system of a kind of FM signal, electronic equipment |
| CN108260054B (en) * | 2018-01-11 | 2020-07-24 | 上海展扬通信技术有限公司 | FM quality improving method and device and computer readable storage medium |
| CN108449153A (en) * | 2018-03-20 | 2018-08-24 | 深圳市中科汉天下电子有限公司 | A kind of broadcast channel search method and device |
| CN111371520B (en) * | 2020-03-06 | 2021-10-26 | Tcl移动通信科技（宁波）有限公司 | Radio search processing method and device, storage medium and terminal |
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