CN205992905U - A kind of Chinese Digital audio broadcasting CDR receiving terminal - Google Patents
A kind of Chinese Digital audio broadcasting CDR receiving terminal Download PDFInfo
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- CN205992905U CN205992905U CN201620573133.2U CN201620573133U CN205992905U CN 205992905 U CN205992905 U CN 205992905U CN 201620573133 U CN201620573133 U CN 201620573133U CN 205992905 U CN205992905 U CN 205992905U
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Abstract
This utility model provides a kind of CDR receiving terminal, including antenna, tuner module, demodulation module, central processing module, UART interface and TS interface.Its line options receives CDR data and is transmitted to tuner module；Tuner module is tuned to CDR data and sends it to demodulation module；Demodulation module is connected to central processing module by UART interface and TS interface, for control instruction is received from central processing module by UART interface, and according to control instruction, CDR data is demodulated, then by TS interface by demodulate after CDR data transfer to central processing module；Central processing module exports after being used for the CDR data after demodulation is processed.This utility model passes through between demodulation module and middle control module using UART interface and TS interface so that the terminal processing capacity with CDR receive capabilities is strengthened, and is provided with suitable data output interface data form.
Description
Technical field
This utility model is related to communication broadcasting system, more particularly, to a kind of Chinese Digital audio broadcasting (China Digital
Radio, CDR) receiving terminal.
Background technology
《" 12 " radio, film and television science and technology development planning》Clearly propose to advance the digitized of China's sound radio, set up
Suitable China's national situation, there is the digital audio broadcasting system of independent intellectual property right, expand Chinese Digital audio broadcasting system for this
The system research and development of CDR and test, and take the lead in bearing fruit in frequency modulation frequency range, Beijing, Guangdong have sequentially activated CDR digital audio broadcasting
Demonstration network is built and is run.
2013, the industry standard of the channel of CDR and two parts of multiplexing was issued in succession, according to the deployment of authorities,
China will start the construction of nationwide CDR digital audio broadcasting net, takes " three-step-march " strategy, plans to realize by 2016
CDR digital audio broadcasting covers the target in the national above city of region.
Chinese Digital audio broadcasting (China Digital Radio, CDR) is the own digital audio broadcasting mark of China
Standard, frequency modulation (FM) is Audio Broadcasting standard all highly developed both at home and abroad.Both standards are all to be received wirelessly by antenna
The signal of telecommunication, CDR broadcast adopts and FM identical frequency range, this two functions is integrated in a receiving terminal, disclosure satisfy that and make
User is in the different demands of different occasions, time.
The content of CDR digital audio broadcasting, in addition to the audio frequency that traditional FM broadcasts, can also include picture, video, word
Deng, though due to policy limit etc. factor can not carry out video broadcasting in real time, but but can carry out content push, possess solution
After code, the terminal of display function receive, it is possible to achieve local broadcasting.So CDR operator just can be carried by this form
For value-added service.
CDR as a kind of with FM the digital broadcast transmission mode with frequency, wide with FM analog broadcasting, DTMB terrestrial DTV
Broadcast and compared much unrivaled advantages.Compared with FM, CDR transferring content, in addition to audio frequency, can also transmit video, figure
The contents such as piece, and compared with DTMB ground digital television broadcast, its front end emission scrap build low cost, coverage effect is good.
Therefore, CDR in future will carry out the multimedia broadcasting in addition to TV, and this multimedia broadcasting need exist for powerful
Receiver terminal is supporting, and such receiver needs the disposal ability main control chip cooperation more compared with strong, function, then CDR solves
Suitable data output interface, data form is needed exist between aligning piece and main control chip.
Utility model content
The purpose of this utility model be provide a kind of new Chinese Digital audio broadcasting (China Digital Radio,
CDR receiving terminal).
This utility model provides a kind of receiving terminal of Chinese Digital audio broadcasting CDR it is characterised in that including：My god
Line, tuner module, demodulation module, central processing module, UART Universal Asynchronous Receiver Transmitter UART interface and transport stream TS interface, wherein：
Described antenna is connected to described tuner module, for selecting to receive CDR data and by the CDR receiving data transfer to described tune
Humorous module；Described tuner module is connected to described demodulation module, for being tuned to described CDR data and sending it to institute
State demodulation module；Described demodulation module is connected to described central processing module by described UART interface and described TS interface, uses
In control instruction is received from described central processing module by described UART interface, and according to described control instruction to described
CDR data is demodulated, then by described TS interface by demodulate after CDR data transfer to described central processing module；Institute
State central processing module for output after the CDR data after demodulation is processed.
Preferably, described central processing module includes：Demultiplexing module, for carrying out to the CDR data after described demodulation
Demultiplexing；Decoder module, it is connected to described demultiplexing module, for exporting to after the CDR decoding data after demultiplexing.
Preferably, described terminal also includes：Display module, it is connected with described central processing module, for decoding
CDR data afterwards is shown with visual form.
Preferably, described terminal also includes：Audio-frequency module, it is connected with described central processing module, for decoding
CDR data afterwards is exported with audio form.
Preferably, described terminal also includes：Memory module, it is connected with described central processing module, for storing CDR
Intermediate data in data decoding procedure and decoded CDR data.
This utility model passes through between demodulation module and middle control module using UART interface and TS interface so that having
The terminal processing capacity of CDR receive capabilities is strengthened, and is provided with suitable data output interface data form.
Brief description
Fig. 1 is that a kind of function of the receiving terminal of the Chinese Digital audio broadcasting CDR according to this utility model embodiment is shown
Meaning block diagram；
Fig. 2 is the schematic flow sheet of the implementation method of CDR receive capabilities in Fig. 1.
Specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 1 is that a kind of function of the Chinese Digital audio broadcasting CDR receiving terminal according to this utility model embodiment is illustrated
Block diagram.
As shown in figure 1, this terminal includes antenna, tuner module, demodulation module, UART interface, TS interface, central authorities' process mould
Block, memory module, display module and audio-frequency module.
Antenna is connected to tuner module, for receiving CDR data and being transmitted to tuner module.Tuner module is also connected with
To demodulation module, the CDR data for receiving to antenna is tuned, then by the CDR data transfer after tuning to demodulation
Module.Demodulation module is connected to central processing module also by UART interface and TS interface, for by UART interface from central authorities
Processing module receives control instruction, and according to control instruction, CDR data is demodulated, then after TS interface will demodulate
CDR data transfer to central processing module.
Central processing module exports after being used for the CDR data after demodulation is processed, and it can include demultiplexing module
With decoder module (not shown), wherein demultiplexing module is used for the CDR data after described demodulation is demultiplexed, and decodes
Module is connected to described demultiplexing module, for exporting to after the CDR decoding data after demultiplexing.
Central processing module is also connected with memory module, display module and audio-frequency module respectively, is additionally operable to display mould
Block carries out display screen driving, then exports decoded audio signal to user by audio-frequency module, or will be decoded
Video signal is shown on display module.
Memory module is built in terminal, its can with using various forms, including but not limited to Nor Flash,
TF card, Nand Flash, DDR2, it is connected with decoding drive module, after storage demodulation, CDR's needed for decoder
Related data, this data can be for example audio-frequency multiplex layer data, decoding layer frame compressed data, and decoding intermediate data, after decoding
PCM data/video/audio etc..
Preferably, described memory module is additionally operable to store the mediant in the file data decoding process in external memory storage
According to this and decoded file data.For example, decoded file can also select to be stored in depositing of terminal built-in according to user
In storage module, so that user also can watch in the case of not having external storage or listen to.
Fig. 2 is the schematic flow sheet of the implementation method of CDR receive capabilities in Fig. 1.
In step 201, CDR data is received by antenna.
In step 202, the CDR data receiving is tuned.
In step 203, control instruction is received from CPU by UART interface.
In step 204, according to the control instruction receiving, the CDR data after tuning is demodulated.
In step 205, the CDR data after demodulating is transferred to by CPU by TS interface.
In step 206, the CDR data after demodulation is demultiplexed and is decoded.
In step 207, decoded CDR data is exported in modes such as audio or videos.
Terminal of the present utility model may be realized in various forms, and such as can be carried with by user or dress
Portable terminal or car-mounted terminal etc..Terminal of the present utility model is by being integrated into a station terminal by three functions
On, disclosure satisfy that the different demands in different occasions, time for the user.
Professional should further appreciate that, each example describing in conjunction with the embodiments described herein
Unit and algorithm steps, can be hard in order to clearly demonstrate with electronic hardware, computer software or the two be implemented in combination in
Part and the interchangeability of software, generally describe composition and the step of each example in the above description according to function.
These functions to be executed with hardware or software mode actually, the application-specific depending on technical scheme and design constraint.
Professional and technical personnel can use different methods to each specific application realize described function, but this realization
It is not considered that exceeding scope of the present utility model.
The step of the method in conjunction with the embodiments described herein description or algorithm can be with hardware, computing device
Software module, or the combination of the two is implementing.Software module can be placed in random access memory (RAM), internal memory, read only memory
(ROM), electrically programmable ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-ROM or technical field
In interior known any other form of storage medium.
Above-described specific embodiment, is entered to the purpose of this utility model, technical scheme and beneficial effect
One step describes in detail.Be should be understood that and be the foregoing is only specific embodiment of the present utility model, be not used to limit
Fixed protection domain of the present utility model, all any modifications within spirit of the present utility model and principle, made, equivalent replaces
Change, improve, should be included within protection domain of the present utility model.
Claims (5)
1. a kind of Chinese Digital audio broadcasting CDR receiving terminal is it is characterised in that include：Antenna, tuner module, demodulation module,
Central processing module, UART Universal Asynchronous Receiver Transmitter UART interface and transport stream TS interface, wherein：
Described antenna is connected to described tuner module, for receiving CDR data and by the CDR receiving data transfer to described tune
Humorous module；
Described tuner module is connected to described demodulation module, for being tuned to described CDR data and sending it to described
Demodulation module；
Described demodulation module is connected to described central processing module by described UART interface and described TS interface, for by institute
State UART interface and receive control instruction from described central processing module, and according to described control instruction, described CDR data is entered
Row demodulation, then pass through described TS interface by demodulation after CDR data transfer to described central processing module；
Described central processing module exports after being used for the CDR data after demodulation is processed.
2. Chinese Digital audio broadcasting CDR receiving terminal according to claim 1 is it is characterised in that described central authorities are processed
Module includes：
Demultiplexing module, for demultiplexing to the CDR data after described demodulation；
Decoder module, it is connected to described demultiplexing module, for exporting to after the CDR decoding data after demultiplexing.
3. Chinese Digital audio broadcasting CDR receiving terminal according to claim 1 is it is characterised in that also include：
Display module, it is connected with described central processing module, for showing decoded CDR data with visual form.
4. Chinese Digital audio broadcasting CDR receiving terminal according to claim 1 is it is characterised in that also include：
Audio-frequency module, it is connected with described central processing module, for exporting decoded CDR data with audio form.
5. Chinese Digital audio broadcasting CDR receiving terminal according to claim 1 is it is characterised in that also include：
Memory module, it is connected with described central processing module, for store the intermediate data in CDR data decoding procedure with
And decoded CDR data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573133.2U CN205992905U (en) | 2016-06-14 | 2016-06-14 | A kind of Chinese Digital audio broadcasting CDR receiving terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573133.2U CN205992905U (en) | 2016-06-14 | 2016-06-14 | A kind of Chinese Digital audio broadcasting CDR receiving terminal |
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| CN205992905U true CN205992905U (en) | 2017-03-01 |
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| CN201620573133.2U Active CN205992905U (en) | 2016-06-14 | 2016-06-14 | A kind of Chinese Digital audio broadcasting CDR receiving terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915306A (en) * | 2016-06-14 | 2016-08-31 | 北京海尔集成电路设计有限公司 | China digital radio CDR receiving terminal and realization method of the receiving terminal |
| CN107070470A (en) * | 2017-03-03 | 2017-08-18 | 北京海尔集成电路设计有限公司 | A kind of CDR data output circuits and data output method |
| CN107425933A (en) * | 2017-03-03 | 2017-12-01 | 北京海尔集成电路设计有限公司 | A kind of CDR terminal devices using IIC communications protocol |
| CN107645350A (en) * | 2017-09-15 | 2018-01-30 | 成都德芯数字科技股份有限公司 | Audio frequency broadcast system and method |
-
2016
- 2016-06-14 CN CN201620573133.2U patent/CN205992905U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915306A (en) * | 2016-06-14 | 2016-08-31 | 北京海尔集成电路设计有限公司 | China digital radio CDR receiving terminal and realization method of the receiving terminal |
| CN107070470A (en) * | 2017-03-03 | 2017-08-18 | 北京海尔集成电路设计有限公司 | A kind of CDR data output circuits and data output method |
| CN107425933A (en) * | 2017-03-03 | 2017-12-01 | 北京海尔集成电路设计有限公司 | A kind of CDR terminal devices using IIC communications protocol |
| CN107645350A (en) * | 2017-09-15 | 2018-01-30 | 成都德芯数字科技股份有限公司 | Audio frequency broadcast system and method |
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