CN216774780U - Emergency broadcast receiving device of vehicle-mounted digital radio broadcast - Google Patents
Emergency broadcast receiving device of vehicle-mounted digital radio broadcast Download PDFInfo
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- CN216774780U CN216774780U CN202220500092.XU CN202220500092U CN216774780U CN 216774780 U CN216774780 U CN 216774780U CN 202220500092 U CN202220500092 U CN 202220500092U CN 216774780 U CN216774780 U CN 216774780U
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Abstract
The utility model discloses an emergency broadcast receiving device of vehicle-mounted digital radio broadcast, comprising: the system comprises analog radio equipment, a digital broadcast processing module, a power amplifier, an SOC automobile emergency broadcast system processor, a display device and a relay, wherein the analog radio equipment is electrically connected with the digital broadcast processing module, the SOC automobile emergency broadcast system processor and the power amplifier, the digital broadcast processing module is electrically connected with the SOC automobile emergency broadcast system processor, and the SOC automobile emergency broadcast system processor is electrically connected with the power amplifier, the display device and the relay. The utility model has simple structure, and adds a digital broadcast processing module on the basis of the original vehicle-mounted AM/FM emergency communication broadcast, wherein the module can realize the receiving, demodulation, audio decoding and application processing of the digital broadcast. Meanwhile, the special function of transmitting the emergency broadcast information by the DRM is combined with other modules to realize the functions of automatic switching, instant starting, audio and advanced text information carrying and the like of the receiver.
Description
Technical Field
The utility model relates to the technical field of broadcasting, in particular to an emergency broadcast receiving device for vehicle-mounted digital radio broadcasting.
Background
The traditional analog broadcast has wide coverage and wide popularization range in the application of vehicle emergency broadcast receiving, but the traditional analog broadcast has the defects of single receiving service, poor anti-jamming capability and poor listener experience.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an emergency broadcast receiving device of vehicle-mounted digital radio broadcast, which is used for solving the problem of analog broadcast in the prior art.
In one aspect, an embodiment of the present invention provides an emergency broadcast receiving apparatus for vehicle-mounted digital radio broadcasting, including:
an analog radio device for receiving the DRM radio frequency signal, demodulating the DRM radio frequency signal, and generating a digital baseband IQ signal;
the digital broadcasting processing module is electrically connected with the analog radio equipment, and is used for demodulating and audio processing the digital baseband IQ signal to generate a DRM digital audio signal;
the power amplifier is electrically connected with the analog radio equipment and is used for performing power amplification on the analog signal;
the SOC automobile emergency broadcasting system processor is electrically connected with the analog radio equipment, the digital broadcasting processing module and the power amplifier, and is used for acquiring emergency broadcasting signals sent by the digital broadcasting processing module and text information carried by emergency broadcasting, finishing judgment according to the emergency broadcasting signals and generating corresponding starting instructions;
the display device is electrically connected with the SOC automobile emergency broadcasting system processor and is used for displaying text information;
and the relay is electrically connected with the SOC automobile emergency broadcasting system processor and is used for controlling the receiver to be started or switched under the control of the starting instruction.
The emergency broadcast receiving device of the vehicle-mounted digital radio broadcast has the following advantages:
the digital broadcast processing module is added on the basis of the traditional vehicle-mounted analog emergency communication broadcast, and other modules are combined on the basis, so that the receiving, demodulation, audio decoding and application processing of emergency broadcast signals are realized, and the emergency broadcast signal processing system has the advantages of simple structure, low cost, strong anti-interference capability and good tone quality. Meanwhile, the special functions of the digital radio broadcasting transmission emergency broadcast information are combined with other modules to realize the functions of automatic switching of the receiver, instant starting of a standby mode, carrying of audio and advanced text information and the like, the types of received data are enriched, and the signal anti-interference capability and the user experience are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic composition diagram of an emergency broadcast receiving device for vehicle-mounted digital radio broadcasting according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic composition diagram of an emergency broadcast receiving device for vehicle-mounted digital radio broadcasting according to an embodiment of the present invention. The embodiment of the utility model provides an emergency broadcast receiving device of vehicle-mounted digital radio broadcast, which comprises:
an analog Radio device for receiving a DRM (Digital Radio broadcasting) Radio frequency signal, demodulating the DRM Radio frequency signal, and generating a Digital baseband IQ (In-phase/Quadrature) signal;
the digital broadcasting processing module is electrically connected with the analog radio equipment, and is used for demodulating and audio processing the digital baseband IQ signal to generate a DRM digital audio signal;
the power amplifier is electrically connected with the analog radio equipment and is used for performing power amplification on the analog signal;
the System On Chip (SOC) automobile emergency broadcast System processor is electrically connected with the analog radio equipment, the digital broadcast processing module and the power amplifier, and is used for acquiring emergency broadcast signals sent by the digital broadcast processing module and text information carried by emergency broadcasts, finishing judgment according to the emergency broadcast signals and generating corresponding starting instructions;
the display device is electrically connected with the SOC automobile emergency broadcasting system processor and is used for displaying text information;
and the relay is electrically connected with the SOC automobile emergency broadcasting system processor and is used for controlling the receiver to be started or switched under the control of the starting instruction.
Illustratively, the analog radio may employ a TEF6638 chip for the radio-frequency signal demodulation of the preceding stage. The analog radio device is connected with the digital broadcast processing module through two interfaces of BBIIS and IIS (Integrated Interface of Sound). The analog radio equipment receives the DRM radio frequency signal through the software radio technology, demodulates the DRM radio frequency signal to generate a digital baseband IQ signal, and then transmits the digital baseband IQ signal to the digital broadcast processing module through the BBIIS interface. The Analog radio may also be connected to the power amplifier via an Analog-to-Digital Converter (DAC). Meanwhile, the analog radio equipment can also be connected with the SOC automobile emergency broadcasting system processor through an SPI (Serial Peripheral Interface).
The digital broadcast processing module adopts an SAF3607 chip which is a DRM receiving chip professional in Enzhipu company, demodulates and performs audio processing on a received digital baseband IQ signal to generate a DRM digital audio signal, and then transmits the DRM digital audio signal to the analog radio equipment through an IIS interface. The analog radio device processes the DRM digital audio signal returned by the digital broadcast processing module, converts the DRM digital audio signal into an analog signal through a digital-to-analog converter and transmits the analog signal to the power amplifier. The digital broadcast processing module can be connected with the SOC automobile emergency broadcast system processor through the SPI interface, and the digital broadcast processing module transmits emergency broadcast signals and text information carried by emergency broadcasts to the SOC automobile emergency broadcast system processor through the SPI interface.
The SOC automobile emergency broadcast system processor adopts an MCIMX6QP series chip, and the module is a core module for system application processing and mainly completes analysis of emergency broadcast signals and control of other modules and other extended applications. The SOC automobile emergency broadcasting system processor is connected with the power amplifier through an Inter-Integrated Circuit (IIC) port and used for controlling the working state of the power amplifier. The SOC automobile emergency broadcasting system processor controls the selection of the output audio of the analog radio equipment and the adjustment of the output volume through the SPI interface. The SOC automobile emergency broadcasting system processor is connected with a chip of the display device through an LVDS (Low-Voltage Differential Signaling) interface, obtains text information transmitted by the DRM emergency broadcasting from the digital broadcasting processing module, and transmits the text information to the display device through the LVDS interface after processing. The SOC automobile emergency broadcasting system processor also controls the digital broadcasting processing module through the SPI interface, and controls the automatic starting or automatic switching of the receiver through the relay after the judgment of the DRM emergency broadcasting signals is completed, for example, when the receiver is in a standby state, the receiver is controlled to be automatically started when receiving the DRM emergency broadcasting signals, or when the receiver is in a working state, the receiver is controlled to be automatically switched when receiving the DRM emergency broadcasting signals, so that the emergency broadcasting is received.
The power amplifier may employ the chip TDF8546J for amplifying the analog signal from the analog radio and outputting the emergency broadcast audio signal.
In the embodiment of the utility model, the system further comprises a Flash Memory module (Flash Memory), wherein the Flash Memory module can adopt a W25Q16JVSSIQ chip, is electrically connected with the digital broadcast processing module and the SOC automobile emergency broadcast system processor through SPI interfaces, and is used for storing software required by the operation of the chip.
The display device can adopt a TFT-LCD display screen and is used for displaying text information carried by the DRM emergency broadcast and a man-machine interaction interface of the DRM emergency broadcast.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. An emergency broadcast receiving apparatus for an in-vehicle digital radio broadcast, comprising:
an analog radio device for receiving a DRM radio frequency signal, demodulating the DRM radio frequency signal, and generating a digital baseband IQ signal;
the digital broadcast processing module is electrically connected with the analog radio equipment, and is used for demodulating and audio processing the digital baseband IQ signal to generate a DRM digital audio signal;
a power amplifier electrically connected to the analog radio, the power amplifier for power amplifying the analog signal;
the SOC automobile emergency broadcasting system processor is electrically connected with the analog radio equipment, the digital broadcasting processing module and the power amplifier, and is used for acquiring an emergency broadcasting signal sent by the digital broadcasting processing module and text information carried by emergency broadcasting, finishing judgment according to the emergency broadcasting signal and generating a corresponding starting instruction;
the display device is electrically connected with the SOC automobile emergency broadcasting system processor and is used for displaying the text information;
and the relay is electrically connected with the SOC automobile emergency broadcasting system processor and is used for controlling the receiver to be started or switched under the control of the starting instruction.
2. The emergency broadcast receiving apparatus of an in-vehicle digital radio broadcast according to claim 1, further comprising:
and the flash memory module is electrically connected with the digital broadcast processing module and the SOC automobile emergency broadcast system processor and is used for storing software required by operation.
3. The emergency broadcast receiving device of claim 1, wherein the flash memory module is electrically connected to the digital broadcast processing module and the SOC car emergency broadcast system processor through an SPI interface.
4. The emergency broadcast receiving device of claim 1, wherein the analog radio device is electrically connected to the digital broadcast processing module through BBIIS and IIS interfaces, the analog radio device is electrically connected to the power amplifier through a digital-to-analog converter, and the analog radio device is electrically connected to the SOC automobile emergency broadcast system processor through an SPI interface.
5. The emergency broadcast receiving device of claim 1, wherein the SOC automobile emergency broadcast system processor is electrically connected to the power amplifier through an IIC interface, and the SOC automobile emergency broadcast system processor is electrically connected to the display device through an LVDS interface.
6. The emergency broadcast receiving apparatus of digital radio broadcasting for vehicles according to claim 1, wherein the display device is a TFT-LCD display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220500092.XU CN216774780U (en) | 2022-03-09 | 2022-03-09 | Emergency broadcast receiving device of vehicle-mounted digital radio broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220500092.XU CN216774780U (en) | 2022-03-09 | 2022-03-09 | Emergency broadcast receiving device of vehicle-mounted digital radio broadcast |
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| CN216774780U true CN216774780U (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220500092.XU Active CN216774780U (en) | 2022-03-09 | 2022-03-09 | Emergency broadcast receiving device of vehicle-mounted digital radio broadcast |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114710174A (en) * | 2022-03-09 | 2022-07-05 | 陕西科技大学 | Emergency broadcast receiving device of vehicle-mounted digital radio broadcast |
| CN115412108A (en) * | 2022-07-18 | 2022-11-29 | 岚图汽车科技有限公司 | Vehicle-mounted radio and vehicle |
-
2022
- 2022-03-09 CN CN202220500092.XU patent/CN216774780U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114710174A (en) * | 2022-03-09 | 2022-07-05 | 陕西科技大学 | Emergency broadcast receiving device of vehicle-mounted digital radio broadcast |
| CN115412108A (en) * | 2022-07-18 | 2022-11-29 | 岚图汽车科技有限公司 | Vehicle-mounted radio and vehicle |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20221107 Address after: No. 13, Demonstration Base for Transformation and Upgrading of Traditional Industries, Yongchang Road, Xianyang Hi tech Industrial Development Zone, Shaanxi Province, 712000 Patentee after: SHAANXI XUNTIAN BROADCASTING TECHNOLOGY CO.,LTD. Address before: 710000 Xi'an campus of Shaanxi University of science and technology, Weiyang District, Xi'an City, Shaanxi Province Patentee before: SHAANXI University OF SCIENCE & TECHNOLOGY |