CN108933636A - A kind of radio reception opportunity interference automatic mute method and device - Google Patents

A kind of radio reception opportunity interference automatic mute method and device Download PDF

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Publication number
CN108933636A
CN108933636A CN201810883704.6A CN201810883704A CN108933636A CN 108933636 A CN108933636 A CN 108933636A CN 201810883704 A CN201810883704 A CN 201810883704A CN 108933636 A CN108933636 A CN 108933636A
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CN
China
Prior art keywords
vehicle
signal
module
audio
automobile
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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.)
Pending
Application number
CN201810883704.6A
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Chinese (zh)
Inventor
马军
黄国枝
杨宽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou Desay SV Automotive Co Ltd
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Huizhou Desay SV Automotive Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to CN201810883704.6A priority Critical patent/CN108933636A/en
Publication of CN108933636A publication Critical patent/CN108933636A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/037Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for occupant comfort, e.g. for automatic adjustment of appliances according to personal settings, e.g. seats, mirrors, steering wheel
    • B60R16/0373Voice control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/029Location-based management or tracking services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/48Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

The invention discloses a kind of vehicle-mounted radio opportunities, and automatic mute method, including circulation to be interfered to execute following steps: obtaining car location message;Obtain the signal strength of the vehicle-mounted radio of current car position;Judge that the radio receiver signal of automobile present position is strong and weak;Judge whether audio signal is noise signal;If automobile is in the weaker position of radio receiver signal, vehicle audio is closed;If automobile is in the region that can not differentiate radio receiver signal power, but audio signal is noise signal, is also switched off vehicle audio.The invention also discloses a kind of vehicle-mounted radio opportunities to interfere auto mute device, for the step of executing the above method.Method noise judging nicety rate of the invention is high, greatly improves user experience.

Description

A kind of radio reception opportunity interference automatic mute method and device
Technical field
The present invention relates to vehicle-mounted radio test and control fields, interfere more particularly to a kind of vehicle-mounted radio opportunity automatic Mute method and device.
Background technique
A kind of voice entertainment configuration being mounted on automobile when vehicle-mounted radio, is that vehicle-mounted video and music entertainment system is most common One of configuration.It is one of favorite entertainment way of numerous automobile friends in the pleasant to the ear radio reception broadcast of driving procedure, listens radio reception broadcast not only The pressure that driver's driving can be mitigated, can also obtain traffic information at any time, facilitate driver and plan drive route;Not only safety but also It is convenient and at low cost.
But automobile, when in some specific areas, radio receiver signal is weak, and the reception of signal will receive great shadow It rings;The case where will appear noise and staccato at this time, thus will affect the driving mood of driver.Although nowadays vehicle-mounted radio Jamproof ability has had great promotion, but has no idea to solve the problems, such as this from the root, and user still obtains not Good driving experience.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of vehicle-mounted radio opportunity interference automatic mute method and one kind Vehicle-mounted radio opportunity interferes auto mute device;It is saved by obtaining the location of automobile information combination automobile services device end The corresponding radio receiver signal power information in present position, judges the power of automobile present position radio receiver signal;Pass through simultaneously The state parameter of audio signal being played on is obtained, determines the power of radio receiver signal at this time.It improves to radio receiver signal The accuracy rate of power judgement, reduces the fault rate by only judging radio receiver signal power by automobile position;It greatlys improve User experience.
In order to reach above-mentioned technical effect, the present invention uses following scheme:
First aspect: the present invention provides a kind of vehicle-mounted radio opportunity interference automatic mute method, and the method includes following Step:
S1: current car position information is obtained, while obtaining the state parameter of the currently playing audio signal of radio;
S2: judge that automobile present position is strong signal area or weak signal area;
If detecting, the location of automobile is weak signal area, and the sound of vehicle audio is automatically closed in in-vehicle multi-media system Sound, and repeat step S1;Conversely, in-vehicle multi-media system automatically terminates if the vehicle audio is in mute state at this time The mute state of vehicle audio;
S3: judge whether audio signal is strong signal by the state parameter of audio signal;
If the state parameter of audio signal is in outside strong signal parameter area, in-vehicle multi-media system closes vehicle audio Sound, and repeat step S1;Conversely, in-vehicle multi-media system releases if the vehicle audio is in mute state at this time The mute state of vehicle audio;
S4: step S1 is repeated to step S4.
Further, in step sl, the current location of automobile is obtained by car borne GPS navigation module;By accessing vehicle The signal condition register for carrying the modem chip of radio obtains the state parameter of audio signal being played on.
Further, in step s 2, it is communicated by 4G communication module with automobile services device end, determines that automobile is presently in Position is strong signal area or weak signal area;Wherein, the weak signal area of the automobile present position be tunnel, underground parking and Mountain valley.
Further, in step s3, the state parameter of the audio signal includes signal strength, multi-path jamming, tuning The distortion factor;Specifically, the strong signal parameter area are as follows: signal strength>10dBuV, and multi-path jamming<20%, and tune distortion Degree < 10%.
Second aspect: invention additionally provides a kind of vehicle-mounted radio opportunity interference auto mute device, for executing first party Method provided by face, comprising: computing module and the locating module connecting with the computing module obtain module, network mould Block, judgment module, volume control module, display module;Wherein:
The locating module is for obtaining current car position;
Audio in the signal condition register for obtaining the modem chip that module is used to obtain vehicle-mounted radio The state parameter of signal;
The network module with automobile services device end for communicating;
The judgment module is strong signal area or weak signal area and audio letter for judging that automobile is presently in position Number status parameter values whether be in preset range;
The volume control module is used to turn off or on the sound of vehicle audio;
The display module realizes human-computer interaction for showing information editing interface;
The finger that the computing module is used to obtain the position, state parameter, driver are issued by the display module It enables, the current signal condition of the auto radio is then obtained by the judgment module, and then pass through the volume control Module controls the sound of vehicle audio, while the signal condition of presently described vehicle-mounted radio is shown by the display module.
Specifically, including touch display screen, one or more processors, memory, network baseband chip, GPS chip.
The present invention judges reception signals power according to the location of automobile, while passing through the audio signal of analysis broadcasting State parameter determines the signal strength or weakness of radio at this time;If the signal of radio is weak, the sound of vehicle audio is closed;When It detects that automobile sails out of radio weak signal area, then opens the sound of vehicle audio.Wherein when vehicle audio is automatically switched off, User can release mute state by touch display screen.
The accuracy rate that methods and apparatus of the present invention judges radio receiver signal power is high, analyzes by using automobile position In addition the state parameter of audio signal is analyzed, the mistake by only judging radio receiver signal power by automobile position is greatly reduced Accidentally rate;Greatly improve user experience.
Detailed description of the invention
Fig. 1 is the flow diagram of the vehicle-mounted radio opportunity interference automatic mute method of embodiment;
Fig. 2 is the vehicle-mounted radio opportunity interference auto mute device structure connection diagram of embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
The present embodiment provides a kind of vehicle-mounted radio opportunities to interfere automatic mute method, as shown in Figure 1, this method includes following Step:
S1: obtaining current car position information, and the current location of automobile is obtained especially by car borne GPS navigation module;Together When obtain the state parameter of the currently playing audio signal of radio, especially by the modem chip of access vehicle-mounted radio Signal condition register obtain the state parameter of audio signal being played on.
S2: judge that automobile present position is strong signal area or weak signal area;Specifically, passing through 4G communication module and automobile Server end communication, obtains the automobile present position in automobile services device and the relation information of signal strength, so that it is determined that automobile Being presently in position is strong signal area or weak signal area.Specifically, radio is tunnel, underground parking in weak signal area The mountain valley and;
If detecting that automobile is in the weak signal area of radio, the sound of vehicle audio is closed, repeats step S1;It is no Then, if the vehicle audio is in mute state at this time, the mute state of vehicle audio is released;Obtain sound being played on Frequency signal;
S3: judge whether audio signal is strong signal by the state parameter of audio signal;Specifically, the shape of audio signal State parameter includes signal strength, multi-path jamming, the tuning distortion factor;Strong signal parameter area are as follows: signal strength > 10dBuV, and it is more Diameter interference < 20%, and tune the distortion factor < 10%.
If the state parameter of audio signal is in outside strong signal parameter area, the sound of vehicle audio is closed;Otherwise, If the vehicle audio is in mute state at this time, the mute state of vehicle audio is released;
S4: step S1 is repeated to step S4.
The present embodiment additionally provides a kind of vehicle-mounted radio opportunity interference auto mute device, comprising: computing module and with The locating module of the computing module connection obtains module, network module, judgment module, volume control module, display module; Wherein:
The locating module is for obtaining current car position;
Audio in the signal condition register for obtaining the modem chip that module is used to obtain vehicle-mounted radio The state parameter of signal;
The network module with automobile services device end for communicating;
The judgment module is strong signal area or weak signal area and audio letter for judging that automobile is presently in position Number status parameter values whether be in preset range;
The volume control module is used to turn off or on the sound of vehicle audio;
The display module realizes human-computer interaction for showing information editing interface;
The finger that the computing module is used to obtain the position, state parameter, driver are issued by the display module It enables, the current signal condition of the auto radio is then obtained by the judgment module, and then pass through the volume control Module controls the sound of vehicle audio, while the signal condition of presently described vehicle-mounted radio is shown by the display module.
In the present solution, when running car is at the weaker remote districts of radio receiver signal, it is willing can will appear it is good when signal When bad situation;It will result in the desultory broadcasting of car audio system in this way;The present embodiment is in order to avoid such case Occur, further include time delay module, the time for closing sound system sound is defined;The sound of sound system is closed in first time Sound starts, and radio receiver signal is persistently detected in backstage, if radio is at the good shape of signal within one minute State then automatically turns on sound.If detected within one minute the appearance of radio weak signal, from weak signal again into It detects within row one minute.
Specifically, as shown in Fig. 2, including touch display screen 1, processor 2, memory 3, network baseband chip 4, GPS core Piece 5.
Specifically, memory 3 is stored in memory 3 by operation for storing software program and module, processor 2 Software program and module, thereby executing the various function application and number of vehicle-mounted radio opportunity interference auto mute device According to processing.Processor 2 gets the position of automobile by GPS chip, then logical by network baseband chip 4 and automobile services device Letter obtains the automobile present position in automobile services device and the relation information of signal strength, so that it is determined that automobile is presently in position Set strong signal area or weak signal area.
Memory 3 mainly includes storing program area and storage data area;Wherein, storing program area can storage program area, Application program needed at least one function etc.;Shell storage in storage data area interferes auto mute device according to vehicle-mounted radio opportunity Use caused by data etc..In addition, memory 3 further include tell random access memory, nonvolatile memory, such as Thick disk storage device, flush memory device or other volatile solid-state parts.
Processor 2 is the control centre of the vehicle-mounted radio opportunity interference auto mute device, is connected using interface and route The various pieces for connecing whole device are stored in the program and/or module of memory 3 by running or executing, and call storage Data in memory 3 execute the vehicle-mounted radio opportunity and interfere at the various functions and data of auto mute device Reason, so as to realize the acquisition of radio audio signal, detect and control vehicle audio.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage Medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc..
The present invention first judges reception signals power according to the location of automobile, then by analyzing the audio signal played State parameter determines whether be in radio weak signal area at this time;If it is the sound of vehicle audio is closed;When detecting vapour Vehicle sails out of radio weak signal area, then opens the sound of vehicle audio.Wherein when vehicle audio is automatically switched off, user can be with Mute state is released by touch display screen.
Compared with the prior art, the scheme judging nicety rate of the present embodiment is high, by extract the audio signal received into Row analyzes and determines, greatly reduces the fault rate by only judging radio receiver signal power by automobile position;It greatlys improve User experience.
The above is a preferred embodiment of the present invention, it is noted that other include that this vehicle-mounted radio opportunity is interfered certainly Sound sound method or apparatus, for those skilled in the art, in the premise for not departing from the principle of the present invention Under, several improvements and modifications can also be made, these modifications and embellishments are also considered to be within the scope of the present invention.

Claims (9)

1. a kind of vehicle-mounted radio opportunity interferes automatic mute method, which is characterized in that the described method comprises the following steps:
S1: current car position information is obtained, while obtaining the state parameter of the currently playing audio signal of radio;
S2: judge that automobile present position is strong signal area or weak signal area;
If detecting, the location of automobile is weak signal area, and the sound of vehicle audio is automatically closed in in-vehicle multi-media system, And repeat step S1;Conversely, in-vehicle multi-media system automatically terminates vehicle-mounted if the vehicle audio is in mute state at this time The mute state of sound equipment;
S3: judge whether audio signal is strong signal by the state parameter of audio signal;
If the state parameter of audio signal is in outside strong signal parameter area, in-vehicle multi-media system closes the sound of vehicle audio Sound, and repeat step S1;Conversely, in-vehicle multi-media system releases vehicle-mounted if the vehicle audio is in mute state at this time The mute state of sound equipment;
S4: step S1 is repeated to step S4.
2. a kind of vehicle-mounted radio opportunity according to claim 1 interferes automatic mute method, which is characterized in that in step S1 In, the current location of automobile is obtained by car borne GPS navigation module.
3. a kind of vehicle-mounted radio opportunity according to claim 1 interferes automatic mute method, which is characterized in that in step S1 In, the shape of audio signal being played on is obtained by accessing the signal condition register of modem chip of vehicle-mounted radio State parameter.
4. a kind of vehicle-mounted radio opportunity according to claim 1 interferes automatic mute method, which is characterized in that in step S2 In, it is communicated by 4G communication module with automobile services device end, determining that automobile is presently in position is strong signal area or weak signal Area.
5. a kind of vehicle-mounted radio opportunity according to claim 1 interferes automatic mute method, which is characterized in that in step S2 In, the weak signal area of the automobile present position is tunnel, underground parking and mountain valley.
6. a kind of vehicle-mounted radio opportunity according to claim 1 interferes automatic mute method, which is characterized in that in step S3 In, the state parameter of the audio signal includes signal strength, multi-path jamming, the tuning distortion factor.
7. a kind of vehicle-mounted radio opportunity according to claim 6 interferes automatic mute method, which is characterized in that in step S3 In, the strong signal parameter area are as follows: signal strength>10dBuV, and multi-path jamming<20%, and tune the distortion factor<10%.
8. a kind of vehicle-mounted radio opportunity interferes auto mute device characterized by comprising computing module and with the calculating The locating module of module connection obtains module, network module, judgment module, volume control module, display module;Wherein:
The locating module is for obtaining current car position;
Audio signal in the signal condition register for obtaining the modem chip that module is used to obtain vehicle-mounted radio State parameter;
The network module with automobile services device end for communicating;
The judgment module is strong signal area or weak signal area and audio signal for judging that automobile is presently in position Whether status parameter values are in preset range;
The volume control module is used to turn off or on the sound of vehicle audio;
The display module realizes human-computer interaction for showing information editing interface;
The instruction that the computing module is used to obtain the position, state parameter, driver are issued by the display module, so The current signal condition of the auto radio is obtained by the judgment module afterwards, and then passes through the volume control module control The sound of vehicle audio processed, while showing by the display module signal condition of presently described vehicle-mounted radio.
9. a kind of radio reception opportunity according to claim 8 interferes auto mute device, which is characterized in that specifically include touch Display screen, one or more processors, memory, network baseband chip, GPS chip.
CN201810883704.6A 2018-08-06 2018-08-06 A kind of radio reception opportunity interference automatic mute method and device Pending CN108933636A (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110620600A (en) * 2019-09-11 2019-12-27 华为技术有限公司 Vehicle-mounted radio and control method
CN111327990A (en) * 2018-12-13 2020-06-23 宝马股份公司 Method, device and system for controlling multi-channel audio playing, vehicle and storage medium
CN111326181A (en) * 2018-12-13 2020-06-23 宝马股份公司 Method and device for controlling playing, multimedia system, vehicle and storage medium
CN112235001A (en) * 2019-07-15 2021-01-15 广州汽车集团股份有限公司 Vehicle-mounted radio noise suppression method and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105099473A (en) * 2014-04-29 2015-11-25 比亚迪股份有限公司 Vehicle radio noise reduction method, device and system
CN106032987A (en) * 2015-03-10 2016-10-19 厦门歌乐电子企业有限公司 Vehicle mounted navigation equipment and display method of vehicle mounted radio
CN106210982A (en) * 2016-06-30 2016-12-07 大连楼兰科技股份有限公司 Vehicle-mounted radio control system based on active safe driving and method
CN106444453A (en) * 2016-10-31 2017-02-22 广州视源电子科技股份有限公司 Method and system for bidirectional automatic induction switching of radio
CN108282241A (en) * 2018-01-15 2018-07-13 播思通讯技术(北京)有限公司 A kind of vehicle-mounted radio signal processing apparatus and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105099473A (en) * 2014-04-29 2015-11-25 比亚迪股份有限公司 Vehicle radio noise reduction method, device and system
CN106032987A (en) * 2015-03-10 2016-10-19 厦门歌乐电子企业有限公司 Vehicle mounted navigation equipment and display method of vehicle mounted radio
CN106210982A (en) * 2016-06-30 2016-12-07 大连楼兰科技股份有限公司 Vehicle-mounted radio control system based on active safe driving and method
CN106444453A (en) * 2016-10-31 2017-02-22 广州视源电子科技股份有限公司 Method and system for bidirectional automatic induction switching of radio
CN108282241A (en) * 2018-01-15 2018-07-13 播思通讯技术(北京)有限公司 A kind of vehicle-mounted radio signal processing apparatus and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111327990A (en) * 2018-12-13 2020-06-23 宝马股份公司 Method, device and system for controlling multi-channel audio playing, vehicle and storage medium
CN111326181A (en) * 2018-12-13 2020-06-23 宝马股份公司 Method and device for controlling playing, multimedia system, vehicle and storage medium
CN111326181B (en) * 2018-12-13 2022-02-01 宝马股份公司 Method, apparatus, system and storage medium for controlling multimedia playback in vehicle
CN111327990B (en) * 2018-12-13 2022-04-26 宝马股份公司 Method, device and system for controlling multi-channel audio playing, vehicle and storage medium
CN112235001A (en) * 2019-07-15 2021-01-15 广州汽车集团股份有限公司 Vehicle-mounted radio noise suppression method and device
CN110620600A (en) * 2019-09-11 2019-12-27 华为技术有限公司 Vehicle-mounted radio and control method

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