CN107819472B - Vehicle radio - Google Patents
Vehicle radio Download PDFInfo
- Publication number
- CN107819472B CN107819472B CN201711121248.3A CN201711121248A CN107819472B CN 107819472 B CN107819472 B CN 107819472B CN 201711121248 A CN201711121248 A CN 201711121248A CN 107819472 B CN107819472 B CN 107819472B
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- China
- Prior art keywords
- mcu
- smart phone
- program
- digital
- module
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- 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.)
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- 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
- H04B1/08—Constructional details, e.g. cabinet
- H04B1/082—Constructional details, e.g. cabinet to be used in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72406—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by software upgrading or downloading
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Telephone Function (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a vehicle-mounted radio, which comprises an MCU (microprogrammed control unit), an audio chip, a radio circuit and a power amplifier, wherein the MCU is composed of a central processing unit, a Bluetooth baseband module, an analog-to-digital conversion module, a digital-to-analog conversion module and a storage module which are integrated into a whole, the radio circuit is connected with the central processing unit through the analog-to-digital conversion module, the central processing unit is sequentially connected with the audio chip and the power amplifier through the digital-to-analog conversion module, and the Bluetooth baseband module and the storage module are respectively connected with. The invention uses a system with high integration level, has the advantage of low cost, and avoids the problem of battery life reduction caused by the fact that the smart phone works and charges at the same time when playing mobile phone music.
Description
Technical Field
The invention relates to the field of vehicle-mounted equipment, in particular to a vehicle-mounted radio.
Background
Most automobiles are provided with a radio module, the radio module is controlled by a vehicle-mounted MCU and can receive a sound receiving signal and play the sound through a power amplifier, and the radio module is integrated with a vehicle-mounted CD player or a USB interface and reads in and plays music files through the vehicle-mounted CD player or the USB interface. At present, the vehicle-mounted radio module can be connected with a mobile phone through a USB interface, music in the mobile phone can be played through the radio module, a USB line needs to be connected in a mode of playing mobile phone music through the vehicle-mounted radio module, the mobile phone still carries out USB charging during playing work, and the service life of a mobile phone battery is undoubtedly reduced.
Disclosure of Invention
The invention aims to provide a vehicle-mounted radio to solve the problem that the service life of a mobile phone battery is reduced when the vehicle-mounted radio is connected with a mobile phone through a USB (universal serial bus) line to play music in the mobile phone in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the vehicle-mounted radio is characterized in that: the Bluetooth radio comprises a high-integration-level MCU, an audio chip, a radio circuit and a power amplifier, wherein the MCU is composed of a central processing unit, a Bluetooth baseband module, an analog-to-digital conversion module, a digital-to-analog conversion module and a storage module which are integrated into a whole, the output end of the radio circuit is connected with the input end of the analog-to-digital conversion module, the output end of the analog-to-digital conversion module is connected with the central processing unit, the input end of the digital-to-analog conversion module is connected with the central processing unit, the output end of the digital-to-analog conversion module is connected with the input end of the audio chip, the output end of the audio chip is connected with the power amplifier, the Bluetooth baseband module;
the radio signal received by the radio circuit is converted into a digital signal by the analog-to-digital conversion module and then sent to the MCU, the digital signal is sent to the digital-to-analog conversion module by the main program in the MCU, the digital signal is converted into an analog signal by the digital-to-analog conversion module and then sent to the audio chip, and the analog signal is processed by the audio chip and then sent to the power amplifier for playing;
the MCU is connected with a Bluetooth module of the smart phone in the vehicle through the Bluetooth baseband module, so that the communication connection between the MCU and the smart phone in the vehicle is realized; the main program in the MCU firstly calls out an APP installation program stored in the storage module and transmits the APP installation program to the smart phone through the Bluetooth transmission program, the smart phone finishes the installation of the APP program after running the APP installation program, after a smart phone holder codes an audio file in the smart phone through the APP program, calling a Bluetooth module of the smart phone by the APP program to send the coded audio file to the MCU, receiving the coded audio file by the Bluetooth receiving program in the MCU and transmitting the coded audio file to the main program, decoding the coded audio file by the main program, then converting the audio data into a data format which can be identified by the MCU to obtain audio data, storing the audio data in a storage module by a main program, and the main program sends the audio data to the digital-to-analog conversion module during playing, the audio data is converted into corresponding analog signals by the digital-to-analog conversion module and sent to the audio chip, and the audio signals are processed by the audio chip and then played through a power amplifier.
The vehicle-mounted radio is characterized in that: the MCU also comprises a USB interface circuit, the USB interface circuit is connected with the central processing unit, and a USB port of the smart phone is connected with the USB interface circuit in the MCU through a USB data line, so that USB charging of the smart phone is realized.
The vehicle-mounted radio is characterized in that: when the smart phone installs the APP program, the main program of the MCU reads the address of the smart phone Bluetooth module and stores the address in the storage module, the address of the smart phone Bluetooth module is used as identification information to identify the smart phone, when the smart phone and the MCU which the address accords with are connected again through Bluetooth, the main program in the MCU does not send the APP installing program to the smart phone, when the smart phone and the MCU which the address does not accord with are connected through Bluetooth, the main program in the MCU firstly sends the APP installing program to the smart phone.
The vehicle-mounted radio is characterized in that: the main program in the MCU also comprises an interface generating program, and an operation interface is generated on the vehicle-mounted display by the interface generating program.
In the invention, the MCU system with high integration level is used, the hardware cost of additionally arranging digital-to-analog conversion and analog-to-digital conversion is saved, and a low-cost and multifunctional multimedia radio system is formed.
In the invention, the MCU is in communication connection with the smart phone through the Bluetooth, the smart phone can directly obtain the APP from the MCU, the APP can obtain the audio file in the smart phone and send the encoded audio file to the MCU through the Bluetooth, then the audio file is processed by the main program in the MCU to obtain audio data and stored, the MCU directly calls the audio data from the storage module to play, therefore, the smart phone is not required to be in a working state for matching, the smart phone can be additionally charged through a USB data line, and the problem of battery life reduction caused by the fact that the smart phone works and is charged at the same time is avoided.
Drawings
Fig. 1 is a schematic block diagram of the structure of the present invention.
Detailed Description
As shown in fig. 1, the car radio comprises a high-integration-level MCU, an audio chip, a radio circuit and a power amplifier, wherein the MCU comprises a central processing unit, a bluetooth baseband module, an analog-to-digital conversion module, a digital-to-analog conversion module and a storage module, which are integrated into a whole, wherein the output end of the radio circuit is connected with the input end of the analog-to-digital conversion module, the output end of the analog-to-digital conversion module is connected with the central processing unit, the input end of the digital-to-analog conversion module is connected with the central processing unit, the output end of the digital-to-analog conversion module is connected with the input end of the audio chip, the output end of the audio chip is connected with the power amplifier, the bluetooth baseband module and the;
the radio signal received by the radio circuit is converted into a digital signal by the analog-to-digital conversion module and then sent to the MCU, the digital signal is sent to the digital-to-analog conversion module by the main program in the MCU, the digital signal is converted into an analog signal by the digital-to-analog conversion module and then sent to the audio chip, and the analog signal is processed by the audio chip and then sent to the power amplifier for playing;
the MCU is connected with a Bluetooth module of the smart phone in the vehicle through the Bluetooth baseband module, so that the communication connection between the MCU and the smart phone in the vehicle is realized; the main program in the MCU firstly calls out an APP installation program stored in the storage module and transmits the APP installation program to the smart phone through the Bluetooth transmission program, the smart phone finishes the installation of the APP program after running the APP installation program, after a smart phone holder codes an audio file in the smart phone through the APP program, calling a Bluetooth module of the smart phone by the APP program to send the coded audio file to the MCU, receiving the coded audio file by the Bluetooth receiving program in the MCU and transmitting the coded audio file to the main program, decoding the coded audio file by the main program, then converting the audio data into a data format which can be identified by the MCU to obtain audio data, storing the audio data in a storage module by a main program, and the main program sends the audio data to the digital-to-analog conversion module during playing, the audio data is converted into corresponding analog signals by the digital-to-analog conversion module and sent to the audio chip, and the audio signals are processed by the audio chip and then played through a power amplifier.
The MCU also comprises a USB interface circuit, the USB interface circuit is connected with the central processing unit, and a USB port of the smart phone is connected with the USB interface circuit in the MCU through a USB data line, so that USB charging of the smart phone is realized.
When the smart phone installs the APP program, the main program of the MCU reads the address of the smart phone Bluetooth module and stores the address in the storage module, the address of the smart phone Bluetooth module is used as identification information to identify the smart phone, when the smart phone and the MCU which the address accords with are connected again through Bluetooth, the main program in the MCU does not send the APP installing program to the smart phone, when the smart phone and the MCU which the address does not accord with are connected through Bluetooth, the main program in the MCU firstly sends the APP installing program to the smart phone.
The main program in the MCU also comprises an interface generating program, and an operation interface is generated on the vehicle-mounted display by the interface generating program.
Claims (1)
1. Vehicle radio, its characterized in that: the high-integration-level MCU comprises a central processing unit, a Bluetooth baseband module, an analog-digital conversion module, a digital-analog conversion module and a storage module which are integrated into a whole, wherein the output end of the radio circuit is connected with the input end of the analog-digital conversion module, the output end of the analog-digital conversion module is connected with the central processing unit, the input end of the digital-analog conversion module is connected with the central processing unit, the output end of the digital-analog conversion module is connected with the input end of the audio chip, the output end of the audio chip is connected with the power amplifier, the Bluetooth baseband module and the storage module are respectively connected with the central processing unit, a main program, a Bluetooth sending program and a Bluetooth receiving program are arranged in the central processing unit, and an APP;
the radio signal received by the radio circuit is converted into a digital signal by the analog-to-digital conversion module and then sent to the MCU, the digital signal is sent to the digital-to-analog conversion module by the main program in the MCU, the digital signal is converted into an analog signal by the digital-to-analog conversion module and then sent to the audio chip, and the analog signal is processed by the audio chip and then sent to the power amplifier for playing;
the MCU is connected with a Bluetooth module of the smart phone in the vehicle through the Bluetooth baseband module, so that the communication connection between the MCU and the smart phone in the vehicle is realized; the main program in the MCU firstly calls out an APP installation program stored in the storage module and transmits the APP installation program to the smart phone through the Bluetooth transmission program, the smart phone finishes the installation of the APP program after running the APP installation program, after a smart phone holder codes an audio file in the smart phone through the APP program, calling a Bluetooth module of the smart phone by the APP program to send the coded audio file to the MCU, receiving the coded audio file by the Bluetooth receiving program in the MCU and transmitting the coded audio file to the main program, decoding the coded audio file by the main program, then converting the audio data into a data format which can be identified by the MCU to obtain audio data, storing the audio data in a storage module by a main program, when playing, the main program sends the audio data to the digital-to-analog conversion module, the audio data is converted into a corresponding analog signal by the digital-to-analog conversion module and sent to the audio chip, and the audio signal is processed by the audio chip and then played through a power amplifier;
the MCU also comprises a USB interface circuit, the USB interface circuit is connected with the central processing unit, and a USB port of the smart phone is connected with the USB interface circuit in the MCU through a USB data line to realize USB charging of the smart phone;
when the APP program is installed on the smart phone, the main program of the MCU reads the address of the smart phone Bluetooth module and stores the address in the storage module, the smart phone is identified by taking the address of the smart phone Bluetooth module as identification information, when the smart phone and the MCU with the corresponding addresses are connected again through Bluetooth, the main program in the MCU does not send the APP installation program to the smart phone, and when the smart phone and the MCU with the non-corresponding addresses are connected through Bluetooth, the main program in the MCU firstly sends the APP installation program to the smart phone;
the main program in the MCU also comprises an interface generating program, and an operation interface is generated on the vehicle-mounted display by the interface generating program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711121248.3A CN107819472B (en) | 2017-11-14 | 2017-11-14 | Vehicle radio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711121248.3A CN107819472B (en) | 2017-11-14 | 2017-11-14 | Vehicle radio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107819472A CN107819472A (en) | 2018-03-20 |
| CN107819472B true CN107819472B (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711121248.3A Expired - Fee Related CN107819472B (en) | 2017-11-14 | 2017-11-14 | Vehicle radio |
Country Status (1)
| Country | Link |
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| CN (1) | CN107819472B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274385A (en) * | 2018-08-01 | 2019-01-25 | 安徽森力汽车电子有限公司 | A kind of vehicle mounted multimedia radio devices of integrated simulation engine sound |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2560146A1 (en) * | 2011-08-19 | 2013-02-20 | Auronik GmbH | System and method for visualising motor vehicle diagnosis and geopositional data |
| CN104681025A (en) * | 2013-11-26 | 2015-06-03 | 现代摩比斯株式会社 | System for command operation using speech recognition and working method thereof |
| CN105511961A (en) * | 2015-11-25 | 2016-04-20 | 魅族科技（中国）有限公司 | Data sending method and terminal |
| CN106231485A (en) * | 2016-08-31 | 2016-12-14 | 周作飞 | Intelligent WIFI sound equipment with APP function and operational approach thereof |
| CN107277272A (en) * | 2017-07-25 | 2017-10-20 | 深圳市芯中芯科技有限公司 | A kind of bluetooth equipment voice interactive method and system based on software APP |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201585236U (en) * | 2009-09-15 | 2010-09-15 | 深圳市逸游天下数码科技有限公司 | Vehicular digital multimedia playing equipment |
| CN203071929U (en) * | 2013-02-01 | 2013-07-17 | 王琪杰 | Vehicle-mounted Bluetooth device |
| CN205945900U (en) * | 2016-06-08 | 2017-02-08 | 王强 | On -vehicle smart mobile phone peripheral hardware |
-
2017
- 2017-11-14 CN CN201711121248.3A patent/CN107819472B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2560146A1 (en) * | 2011-08-19 | 2013-02-20 | Auronik GmbH | System and method for visualising motor vehicle diagnosis and geopositional data |
| CN104681025A (en) * | 2013-11-26 | 2015-06-03 | 现代摩比斯株式会社 | System for command operation using speech recognition and working method thereof |
| CN105511961A (en) * | 2015-11-25 | 2016-04-20 | 魅族科技（中国）有限公司 | Data sending method and terminal |
| CN106231485A (en) * | 2016-08-31 | 2016-12-14 | 周作飞 | Intelligent WIFI sound equipment with APP function and operational approach thereof |
| CN107277272A (en) * | 2017-07-25 | 2017-10-20 | 深圳市芯中芯科技有限公司 | A kind of bluetooth equipment voice interactive method and system based on software APP |
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| Publication number | Publication date |
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| CN107819472A (en) | 2018-03-20 |
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Granted publication date: 20200417 Termination date: 20201114 |