CN101567735B - Method for processing data broadcasting signals - Google Patents
Method for processing data broadcasting signals Download PDFInfo
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- CN101567735B CN101567735B CN2009100395715A CN200910039571A CN101567735B CN 101567735 B CN101567735 B CN 101567735B CN 2009100395715 A CN2009100395715 A CN 2009100395715A CN 200910039571 A CN200910039571 A CN 200910039571A CN 101567735 B CN101567735 B CN 101567735B
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Abstract
The invention relates to a method for processing data broadcasting signals, which is used for processing the data broadcasting signals received by a data broadcasting signal receiving unit and a receiving terminal of an application program. The method comprises the following steps: (1) receiving a command of the application program; (2) controlling the data broadcasting signal receiving unit to receive channel data and perform standard verification on the channel data according to the command of the application program; (3) judging whether the channel data corresponds to the standard verification or not; and (4) transmitting the channel data to the application program if the channel data corresponds to the standard verification, or discarding the channel data if the channel data does not correspond to the standard verification. The method transmits the received channel data to the application program only after standard verification of the channel data, can check the correctness of the data broadcasting signals and find out incorrect information in time, and can avoid the transmission of the incorrect information to the application program.
Description
Technical field
The present invention relates to data broadcasting signal, particularly relate to the processing method of data broadcasting signal in a kind of terminal that receives this data broadcasting signal.
Background technology
Radio Data System (RDS) is in the european norm by the Radio Data System of European Broadcasting Union (EBU) formulation in 1984.The main feature of data broadcasting is to utilize existing fm resources, realizes by inserting digital code in the broadcast singal.It is what to be separated with audio signal, can not disturb radio reception at all, also can not influence broadcast receiver tonequality.After broadcast receiver detection and these digital codes of demodulation, just can provide function corresponding.The loaded data content can comprise radio station type, program category, traffic announcements, advertising message, standard time, weather forecast etc., and the open type data interface is provided simultaneously, uses passage for the specific (special) requirements user provides data text.
Traffic message channel (TMC) is a digital encoding system.The traffic message channel can produce continuous traffic message stream, as traffic congestion or accident, can report the site of an accident and time result.Message has comprised the traffic in certain territorial scope.Traffic message channel message and digital map navigation are combined, promoted the accuracy of automobile navigation the place ahead road condition predicting.Simultaneously,, set up the FM negative carrier broadcast service of DGPS data, the GPS difference correction data arround the broadcasting station are provided, promoted the location positioning precision of GPS greatly in a lot of areas.
RDS-TMC adopts the RDS technology to realize one of application of message issue.Traffic message according to standard code, adopts the issue of RDS technology before broadcasting.
Because the data quantity of data broadcasting information is very huge, the signal that the data broadcasting signal receiving element receives in the receiving terminal will go through handling just can be sent in the application program.So the terminal that contains the RDS-TMC function need solve the signal processing problems between data broadcasting signal receiving element and the application software.
Summary of the invention
Be sent to the problem of application program in order to solve data broadcasting signal from signal receiving unit, a kind of processing method of data broadcasting signal need be provided, the data broadcast singal is handled.
In order to reach above purpose, the invention provides a kind of processing method of data broadcasting signal, comprise the data broadcasting signal that receiving terminal received of a data broadcasting signal receiving element and an application program in order to processing, it comprises:
[1] order of reception application program;
[2] the order control data broadcast singal receiving element according to application program receives a channel data and this channel data is carried out the verification of traffic message channel standard;
[3] judge whether this channel data is corresponding with this traffic message channel standard verification; And
[4] if this channel data is corresponding with this traffic message channel standard verification, then this channel data is sent to application program; If this channel data is not corresponding with this traffic message channel standard verification, then this channel data is abandoned.
The processing method of data broadcasting signal of the present invention, the channel data that receives is carried out just sending it to application program after the verification of traffic message channel standard, can check the correctness of data broadcasting signal, in time find wrong information, can avoid incorrect information to be delivered to application program.
Description of drawings
Fig. 1 is the configuration diagram with the terminal that receives the data broadcasting signal function.
Fig. 2 is the process flow figure of data broadcasting signal.
Embodiment
Ask for an interview Fig. 1, have the terminal 100 that receives the data broadcasting signal function and comprise an application program 102 and data broadcasting signal receiving element 104.The processing method of data broadcasting signal sees also Fig. 2 in this terminal 100. and at first receive an order of application program 202 in step 202, this order selects wave band for receiving, select channel, turn-on data broadcast singal receiving element, close the data broadcasting signal receiving element and search in the succeeding channel order any.In step 204, receive the data broadcasting signal of a channel and carry out the verification of traffic message channel standard according to the order that receives, judge in step 206 then whether the data broadcasting signal of this reception tackles with the verification of traffic message channel standard, if correspondence then enter step 208 will carry out the verification of traffic message channel standard after data broadcasting signal be sent to application program, if not corresponding this data broadcasting signal of step 210 that then enters abandons.Wherein this data broadcasting signal includes the information of wave band, channel, received signal intensity and packet error.This data broadcasting signal is to adopt the form of NMEA0183 to transmit, and this form is $TTT, p1, and p2, p3*cc, wherein, and the kind of TTT explanation message, p1, p2, p3... are the parameter of random length, cc is the standard verification.As Ju Fa $FM, b, ccccc, sss, r*hh＜CR〉＜LF〉represent the state that FM broadcasts, b represents the area, and cccc represents channel, and sss represents received signal intensity, and whether r represents this data broadcasting signal effective at current channel, and hh is the standard verification.Concrete Ju Fa $FM, 2,10750,030,1*08 represents that current FM broadcast region is Japan, and current channel is 107.5MHz, and received signal intensity is 30, and this data broadcasting signal is effective at current channel.And standard checking algorithm of the present invention adopts the algorithm of C language to be:
//inString:the?string?without?checksum
checkSum＝0；
for(i＝1；i＜strlen(inString)；i++)
{
checkSum＝checkSum^inString[i]；
}
The above only is preferred embodiment of the present invention, and all equalizations of making according to the present invention change, all within claim of the present invention.
Claims (4)
1. the processing method of a data broadcasting signal comprises the data broadcasting signal that receiving terminal received of a data broadcasting signal receiving element and an application program in order to processing, and it comprises:
[1] order of reception application program;
[2] the order control data broadcast singal receiving element according to application program receives a channel data and this channel data is carried out the verification of traffic message channel standard;
[3] judge whether this channel data is corresponding with this traffic message channel standard verification; And
[4] if this channel data is corresponding with this traffic message channel standard verification, then this channel data is sent to application program; If this channel data is not corresponding with this traffic message channel standard verification, then this channel data is abandoned.
2. the processing method of data broadcasting signal as claimed in claim 1 is characterized in that, channel data adopts the form of NMEA0183 to transmit.
3. the processing method of data broadcasting signal as claimed in claim 1, it is characterized in that the order of the application program of reception is for receive selecting wave band, selecting channel, turn-on data broadcast singal receiving element, closing in data broadcasting signal receiving element and the order of search succeeding channel any.
4. the processing method of data broadcasting signal as claimed in claim 1 is characterized in that, is sent to comprise wave band, channel, received signal intensity and packet error in the application's data broadcast singal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100395715A CN101567735B (en) | 2009-05-14 | 2009-05-14 | Method for processing data broadcasting signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100395715A CN101567735B (en) | 2009-05-14 | 2009-05-14 | Method for processing data broadcasting signals |
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| Publication Number | Publication Date |
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| CN101567735A CN101567735A (en) | 2009-10-28 |
| CN101567735B true CN101567735B (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100395715A Expired - Fee Related CN101567735B (en) | 2009-05-14 | 2009-05-14 | Method for processing data broadcasting signals |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670148A (en) * | 2017-10-27 | 2018-02-09 | 上海京颐科技股份有限公司 | Transfusion monitoring system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1543080A (en) * | 2003-04-09 | 2004-11-03 | 株式会社电装 | Automatic channel selecting device |
| CN1738387A (en) * | 2000-11-30 | 2006-02-22 | 索尼公司 | Information processing method and apparatus and recording medium |
| CN1855913A (en) * | 2005-04-29 | 2006-11-01 | 上海全景数字技术有限公司 | Stream updating protocol based on TV network propagation and its data interface |
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2009
- 2009-05-14 CN CN2009100395715A patent/CN101567735B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1738387A (en) * | 2000-11-30 | 2006-02-22 | 索尼公司 | Information processing method and apparatus and recording medium |
| CN1543080A (en) * | 2003-04-09 | 2004-11-03 | 株式会社电装 | Automatic channel selecting device |
| CN1855913A (en) * | 2005-04-29 | 2006-11-01 | 上海全景数字技术有限公司 | Stream updating protocol based on TV network propagation and its data interface |
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| CN101567735A (en) | 2009-10-28 |
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Effective date of registration: 20131111 Address after: 213166 Wujin high tech Industrial Development Zone, Jiangsu Province, Yang Lake Road, No. 88 Patentee after: LITE-ON TECHNOLOGY (CHANGZHOU) CO., LTD. Patentee after: Lite-On Electronic (Guangzhou) Co., Ltd. Patentee after: Lite-On Technology Corporation Address before: 510663 Guangzhou science and Technology Development Zone, Guangzhou City, Guangdong Province Science City West Road, No. 25 Patentee before: Xuli Electronics (Guangzhou) Co., Ltd. Patentee before: Lite-On Technology Corporation |
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