CN108880583B - Radio channel searching optimization method - Google Patents
Radio channel searching optimization method Download PDFInfo
- Publication number
- CN108880583B CN108880583B CN201810694880.5A CN201810694880A CN108880583B CN 108880583 B CN108880583 B CN 108880583B CN 201810694880 A CN201810694880 A CN 201810694880A CN 108880583 B CN108880583 B CN 108880583B
- Authority
- CN
- China
- Prior art keywords
- radio station
- radio
- station
- signal intensity
- level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
- H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
Abstract
A radio channel searching optimization method comprises the following steps: (1) judging the frequency of the radio; (2) if the frequency is AM, channel searching optimization is carried out under the AM condition; (3) and if the frequency is FM, performing channel searching optimization under the FM condition. The invention can avoid the problems of channel leakage, channel impurities and unstable channel search caused by the influence of hardware and external environment in the channel search process.
Description
Technical Field
The invention relates to a method for optimizing radio channel searching.
Background
A radio is composed of mechanical parts, electronic parts and magnet, and can convert electric wave signal into audio signal by electric energy and listen to the audio signal transmitted by radio station. Also known as radio, broadcast, etc. The radio in the prior art always suffers from the influence of external environment and hardware environment in the channel searching process, and always has the problems of channel leakage, channel impurities and unstable channel searching.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a radio channel searching optimization scheme. The invention can avoid the problems of channel leakage, channel impurities and unstable channel search caused by the influence of hardware and external environment in the channel search process.
In order to achieve the aim, the invention provides a radio channel searching optimization method, which comprises the following steps:
(1) judging the frequency of the radio;
(2) if the frequency is AM, channel searching optimization is carried out under the AM condition;
(3) and if the frequency is FM, performing channel searching optimization under the FM condition.
The method specifically comprises the following two radio channel searching optimization methods corresponding to the AM condition and the FM condition.
The method comprises the following steps: a method for optimizing channel searching under the AM condition comprises the following steps:
s101: starting searching and obtaining a radio station;
s102: judging whether the radio station is effective, if so, performing step S103; if the channel searching optimization process is invalid, the channel searching optimization process is terminated;
s103: acquiring the signal intensity Level of a radio station;
s104: judging whether the signal intensity Level of the radio station is greater than a station-stopping sensitivity threshold value, if so, adding the radio station to a playlist; if not, go to step S105;
s105: acquiring a previous radio station and a next radio station of the radio stations, and acquiring a signal intensity preLevel of the previous radio station and a signal intensity nextLevel of the next radio station;
s106: judging whether the signal intensity Level is an obvious peak position relative to the signal intensity preLevel of the previous radio station and the signal intensity nextLevel of the next radio station, and if so, adding the radio station to a play list; if not, step S101 is re-performed.
Further, in the step S102, determining whether the station is valid includes determining whether the station is within a valid range.
Further, in the step S105, the previous station and the next station are acquired by stepping forward and backward by 900kHZ, respectively.
Further, in the step S106, it is determined whether the position of the obvious peak is determined by determining whether Level-10 is greater than pre Level + nextlile, and if Level-10 is greater than pre Level + nextlile, the signal strength Level is determined as the position of the obvious peak relative to the signal strength of the previous station, pre Level and the signal strength of the next station, nextlile.
The second method comprises the following steps: a method for optimizing channel searching under FM conditions comprises the following steps:
s201: starting searching and obtaining a radio station;
s202: judging whether the radio station is effective, if so, performing step S203; if the result is invalid, returning to the step S201 to search again;
s203: acquiring the signal intensity Level of a radio station;
s204: and averaging the signal intensity Level of the radio station and the average value average of the signal quality parameters of the radio station, comparing the average value with a locking sensitivity threshold value, and if the average value is greater than the locking sensitivity threshold value, adding the radio station to the playlist.
Further, in step 202, determining whether the station is valid includes determining whether the station is within a valid range.
Furthermore, the list obtaining method of the signal quality parameter average value average is to traverse all the valid stations, store the initial values of the signal intensities of all the valid stations as the signal quality parameter average value average, average the corresponding values in the list of the signal intensities and the signal quality parameter average value every time the valid stations are searched for when the channel search optimization is performed under the FM condition, and store the average value in the list of the signal quality parameter average value.
The radio channel searching optimization method provided by the invention has the following beneficial effects: the method for searching channels of the radio in the prior art is too simple, and phenomena of channel leakage, channel mixing, channel searching instability and the like occur.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a method for performing channel search optimization under AM conditions in accordance with the present invention;
fig. 2 is a flow chart of a method for performing channel search optimization under FM conditions according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The invention aims to provide a scheme for optimizing radio channel searching. The radio comprises an AM (Amplitude Modulation) part and an FM (Frequency Modulation) part, and the invention provides two different channel searching optimization embodiments due to the difference of signals, which respectively correspond to the conditions of channel searching optimization under the AM and FM conditions.
Firstly, AM: the AM realizes the purpose of transmitting information by changing the amplitude of an output signal, so that the invention also adopts the method of extracting wave crests to realize channel searching optimization aiming at the AM besides judging the signal strength.
II, FM: FM is to express information modulation mode by instantaneous change of carrier, so it is only judged whether the current radio station is an effective one by the threshold value of the sensitivity of locking the station, but it is not accurate to judge whether the current radio station is an effective one by the short time of initiating automatic scanning by the user. Aiming at the problems, the invention adopts a background search algorithm to solve, and a background service is independently started from the start of the radio, and the service is used for continuously executing the radio station search algorithm when the system is idle.
Example one
Fig. 1 is a flowchart of a method for performing channel search optimization under AM according to the present invention, and the method for performing channel search optimization under AM according to the present invention will be described in detail with reference to fig. 1:
step 101: a search is started and a station is acquired.
Step 102: judging whether the radio station is effective or not by judging whether the radio station is in an effective range or not, and if so, performing step 103; and if the channel searching optimization process is invalid, the channel searching optimization process is terminated.
Step 103: and acquiring the signal intensity Level of the radio station.
Step 104: judging whether the signal intensity Level of the radio station is greater than a station-stopping sensitivity threshold value, if so, adding the radio station to a playlist; if not, proceed to step 105.
Step 105: the previous and the next station of the station are obtained by stepping 900kHZ forward and backward, respectively, and the signal strength preLevel of the previous station and the signal strength nextLevel of the next station are obtained.
Step 106: judging whether the signal intensity Level is an obvious peak position relative to the signal intensity preLevel of the previous radio station and the signal intensity nextLevel of the next radio station, and if so, adding the radio station to a play list; if not, step 101 is repeated. For the obvious peak position, the judging process is as follows, and whether the Level-10 is greater than the pre Level + nextLevel is judged, if the Level-10 is greater than the pre Level + nextLevel, the signal intensity Level is the obvious peak position relative to the signal intensity of the previous radio station, namely the pre Level and the signal intensity of the next radio station, namely the nextLevel, otherwise, the obvious peak position is not judged.
Example two
Fig. 2 is a flowchart of a method for performing channel search optimization under FM conditions according to the present invention, and the method for performing channel search optimization under FM conditions according to the present invention will be described in detail with reference to fig. 2:
step 201: starting searching and obtaining a radio station;
step 202: judging whether the radio station is effective by judging whether the radio station is in an effective range, and if so, performing step 203; if the search result is invalid, returning to the step 201 to search again;
step 203: acquiring the signal intensity Level of a radio station;
step 204: and averaging the signal intensity Level of the radio station and the average value average of the signal quality parameters of the radio station, comparing the average value with a locking sensitivity threshold value, and if the average value is greater than the locking sensitivity threshold value, adding the radio station to the playlist.
The list obtaining method of the signal quality parameter average value comprises the steps of additionally distributing a group of memories, traversing all effective radio stations in the memories, and storing the initial values of the signal intensities of all the effective radio stations as the signal quality parameter average value; when channel searching optimization is carried out under the FM condition, the corresponding values in the list of the signal intensity and the average value average of the signal quality parameters are averaged every time an effective radio station is searched, the averaged values are stored in the list of the average value average of the signal quality parameters, and meanwhile, a play list is updated.
Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A radio channel searching optimization method comprises the following steps:
(1) judging the frequency of the radio;
(2) if the frequency is AM, channel searching optimization is carried out under the AM condition;
(3) if the frequency is FM, channel searching optimization is carried out under the FM condition;
in the step (2), the method for performing channel search optimization under the AM condition includes the following steps:
s101: starting searching and obtaining a radio station;
s102: judging whether the radio station is effective, if so, performing step S103; if the channel searching optimization process is invalid, the channel searching optimization process is terminated;
s103: acquiring the signal intensity Level of a radio station;
s104: judging whether the signal intensity Level of the radio station is greater than a station-stopping sensitivity threshold value, if so, adding the radio station to a playlist; if not, go to step S105;
s105: acquiring a previous radio station and a next radio station of the radio stations, and acquiring a signal intensity preLevel of the previous radio station and a signal intensity nextLevel of the next radio station;
s106: judging whether the signal intensity Level is an obvious peak position relative to the signal intensity preLevel of the previous radio station and the signal intensity nextLevel of the next radio station, and if so, adding the radio station to a play list; if not, the step S101 is carried out again;
in the step (3), the method for performing channel search optimization under the FM condition includes the following steps:
s201: starting searching and obtaining a radio station;
s202: judging whether the radio station is effective, if so, performing step S203; if the result is invalid, returning to the step S201 to search again;
s203: acquiring the signal intensity Level of a radio station;
s204: averaging the signal intensity Level of the radio station and the average value of the signal quality parameter of the radio station, comparing the average value with a locking sensitivity threshold value, and if the average value is greater than the locking sensitivity threshold value, adding the radio station to a playlist;
the list obtaining method of the signal quality parameter average value average is that all effective radio stations are traversed, the initial value of the signal intensity of all effective radio stations is stored as the signal quality parameter average value average, when the channel searching optimization is carried out under the FM condition, the corresponding value in the list of the signal intensity and the signal quality parameter average value is averaged when the effective radio stations are searched, and the average value is stored in the list of the signal quality parameter average value.
2. The radio receiver channel searching optimization method of claim 1, wherein in the step S102, determining whether the radio station is valid includes determining whether the radio station is within a valid range.
3. The radio receiver search optimization method of claim 1, wherein in step S105, the previous station and the next station are obtained by stepping forward and backward by 900kHZ, respectively.
4. The method as claimed in claim 1, wherein in step S106, it is determined whether the position of the apparent peak is determined by determining whether Level-10 is greater than pre Level + nextlile, and if Level-10 is greater than pre Level + nextlile, the signal strength Level is an apparent peak position relative to the signal strength of the previous station, pre Level and the signal strength of the next station, nextlile.
5. The radio receiver channel searching optimization method of claim 1, wherein the step S202 of determining whether the radio station is valid includes determining whether the radio station is within a valid range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810694880.5A CN108880583B (en) | 2018-06-29 | 2018-06-29 | Radio channel searching optimization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810694880.5A CN108880583B (en) | 2018-06-29 | 2018-06-29 | Radio channel searching optimization method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108880583A CN108880583A (en) | 2018-11-23 |
| CN108880583B true CN108880583B (en) | 2021-03-23 |
Family
ID=64296917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810694880.5A Active CN108880583B (en) | 2018-06-29 | 2018-06-29 | Radio channel searching optimization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108880583B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929260A (en) * | 2014-03-12 | 2014-07-16 | 上海风格信息技术股份有限公司 | Analysis method for abnormal radio frequency points |
| CN104092502A (en) * | 2014-06-26 | 2014-10-08 | 青岛海信移动通信技术股份有限公司 | Method and device for radio station searching |
| CN104980175A (en) * | 2014-04-04 | 2015-10-14 | 阿尔派株式会社 | Radio broadcast receiving apparatus and broadcast frequency detection method |
| CN105376004A (en) * | 2014-07-31 | 2016-03-02 | 展讯通信（上海）有限公司 | Adaptive broadcasting station searching device, adaptive broadcasting station searching method and FM receiver |
| CN106230449A (en) * | 2016-07-28 | 2016-12-14 | 宁波均胜科技有限公司 | A kind of radio based on guidance entertainment system deposits platform filtering algorithm |
-
2018
- 2018-06-29 CN CN201810694880.5A patent/CN108880583B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929260A (en) * | 2014-03-12 | 2014-07-16 | 上海风格信息技术股份有限公司 | Analysis method for abnormal radio frequency points |
| CN104980175A (en) * | 2014-04-04 | 2015-10-14 | 阿尔派株式会社 | Radio broadcast receiving apparatus and broadcast frequency detection method |
| CN104092502A (en) * | 2014-06-26 | 2014-10-08 | 青岛海信移动通信技术股份有限公司 | Method and device for radio station searching |
| CN105376004A (en) * | 2014-07-31 | 2016-03-02 | 展讯通信（上海）有限公司 | Adaptive broadcasting station searching device, adaptive broadcasting station searching method and FM receiver |
| CN106230449A (en) * | 2016-07-28 | 2016-12-14 | 宁波均胜科技有限公司 | A kind of radio based on guidance entertainment system deposits platform filtering algorithm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108880583A (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2010049772A1 (en) | Association of network cells with location information | |
| CN1675942A (en) | Method and apparatus for scanning for neighboring cells | |
| KR101790960B1 (en) | Bluetooth smart signal receiving method and device using improved automatic gain control | |
| CN108880583B (en) | Radio channel searching optimization method | |
| RU2461965C2 (en) | Broadcasting receiver | |
| US8320821B2 (en) | Receiving apparatus | |
| CN102210142A (en) | Broadcast receiving circuit and broadcast receiving apparatus | |
| CN102163979A (en) | Broadcast receiving apparatus and method of detecting noise components performed by broadcast receiving apparatus | |
| CN102055489A (en) | Channel searching device and method for broadcasting receiver | |
| CN104980175A (en) | Radio broadcast receiving apparatus and broadcast frequency detection method | |
| CN101835217B (en) | Cell selection method and device in reselected cells determined by multiple reselection modes | |
| KR100549379B1 (en) | Apparatus and method for converting channel frequency and program in mobile digital broadcasting receiver | |
| US20030163830A1 (en) | Method for automatically searching cable TV band | |
| JP3068428U (en) | Television receiver | |
| US9531414B2 (en) | Management process of a radio service following in a receptor and corresponding receptor | |
| KR102213760B1 (en) | Transmitter identification during movements by vehicles through the tunnel | |
| EP2693668B1 (en) | Radio receiver | |
| CN113316224A (en) | Broadcast channel searching method, device, equipment terminal and storage medium | |
| US8379732B2 (en) | Communications device for scanning multiple frequencies and for detecting analog and digital video signals and associated methods | |
| CN106210839B (en) | automatic gain control system and method for set top box | |
| KR101522639B1 (en) | Automatic gain control apparatus and method for compressed mode in mimo system | |
| CN111356194A (en) | Method and system for network reselection | |
| EP0944213A2 (en) | Digital broadcast receiver | |
| CN105827339A (en) | Method and device for searching radio station | |
| CN113422666B (en) | Cell search pre-access method for narrowband Internet of things terminal and narrowband Internet of things terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |