CN107592123B - Vehicle-mounted multifunctional radio and switching method - Google Patents
Vehicle-mounted multifunctional radio and switching method Download PDFInfo
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- CN107592123B CN107592123B CN201710778732.7A CN201710778732A CN107592123B CN 107592123 B CN107592123 B CN 107592123B CN 201710778732 A CN201710778732 A CN 201710778732A CN 107592123 B CN107592123 B CN 107592123B
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Abstract
The invention discloses a switching method of a vehicle-mounted multifunctional radio, which comprises the following steps: firstly, the processor monitors the signal intensity of RSSI _ A, WAM and USN of an FM/AM communication module and the signal intensity of RSSI _ B of a 3G/4G communication module in real time, and selects the processor to control the network communication module to receive network radio signals according to the strength of the FM/AM communication module and the RSSI _ B of the 3G/4G communication module, control the signal processing module to convert the network radio signals into audio signals, and then control the power amplification module to play the audio signals; or the processor controls the FM/AM communication module to receive the FM/AM signal, controls the signal processing module to convert the FM/AM signal into an audio signal, and controls the power amplification module to play the audio signal; or the processor controls the signal processing module to be accessed to other sound sources and played through the power amplifier module after being processed. The invention is used for the vehicle-mounted radio.
Description
Technical Field
The invention relates to the technical field of radios, in particular to a vehicle-mounted multifunctional radio.
Background
Since the vehicle-mounted radio often moves together with the vehicle body in different environments, certain signal dead angles exist, FM/AM signal dead angles exist in some places, and network signal dead angles exist in some places, the problem that signals cannot be covered exists no matter the FM/AM radio is used or the network radio is used as the vehicle-mounted radio.
Disclosure of Invention
The invention aims to provide a vehicle-mounted multifunctional radio which is compatible with various signals.
In order to achieve the above object, the present invention provides a switching method of a vehicle-mounted multifunctional radio, comprising the following steps:
s1, the processor monitors RSSI _ A (receiver signal strength indicator) of the FM/AM communication module, WAM (multi-path interference strength), USN (adjacent channel signal strength) and RSSI _ B (receiver signal strength indicator) of the 3G/4G communication module in real time, executes step S2 when the processor monitors that RSSI _ A is smaller than or equal to a preset threshold value, RSSI _ B is larger than or equal to a preset threshold value and at least one of WAM and USN is larger than or equal to a preset threshold value, executes step S3 when RSSI _ A is larger than the preset threshold value, RSSI _ B is smaller than the preset threshold value and both WAM and USN are smaller than the preset threshold value, executes step S2 when RSSI _ A is larger than the preset threshold value, RSSI _ B is larger than or equal to the preset threshold value and at least one of WAM and USN is larger than or equal to the preset threshold value, when the RSSI _ a value is greater than the preset threshold, the RSSI _ B value is less than the preset threshold, and the value of at least one of the WAM and the USN is greater than the preset threshold, the step S4 is executed;
s2, the processor controls the network communication module to receive the network radio signals, controls the signal processing module to convert the network radio signals into audio signals, and controls the power amplification module to play the audio signals;
s3, the processor controls the FM/AM communication module to receive FM/AM signals, controls the signal processing module to convert the FM/AM signals into audio signals, and controls the power amplification module to play the audio signals;
s4, the processor controls the signal processing module to access to other sound sources, processes the sound sources and then plays the sound sources through the power amplifier module;
wherein, RSSI _ a is the receiver signal strength indication of FM/AM communication module, WAM is the multipath interference strength, USN is the adjacent channel signal strength, and RSSI _ B is the receiver signal strength indication of 3G/4G communication module.
Further, the preset threshold of the RSSI _ a is-77 dBm, the preset threshold of the RSSI _ B is-90 dBm, and the preset thresholds of the WAM and the USN are both 30.
Furthermore, the power amplifier module amplifies the audio signal before playing the audio signal.
Further, the other sound sources include a vehicle-mounted MP3 or a bluetooth-connected mobile phone MP 3.
Further, including treater, signal processing module, power amplifier module, network communication module and FM/AM communication module, the treater is used for controlling signal processing module, power amplifier module, network communication module and FM/AM communication module work and the power of monitoring network communication module and FM/AM communication module received signal, signal processing module is used for becoming audio signal with FM/AM signal or network radio signal processing, power amplifier module enlargies and plays audio signal, network communication module is used for receiving network radio signal, FM/AM communication module is used for receiving FM/AM signal.
Furthermore, the signal processing module comprises a switch, and the switch is used for switching the signal processing module to be in communication connection with the network communication module or in communication connection with the FM/AM communication module.
Furthermore, the power amplifier module includes a loudspeaker, and the loudspeaker is used for playing audio signals.
Furthermore, the network communication module and the FM/AM communication module are both provided with antennas.
Furthermore, the network communication module is a 3G/4G communication module.
Further, the processor is an MCU, and the processor is provided with control software.
The beneficial effects realized by the invention mainly comprise the following points: the multifunctional radio can receive FM/AM signals and network signals, and can automatically access the vehicle-mounted MP3 or the mobile phone MP3 when the FM/AM signals and the network signals are not good, so that the condition that the vehicle cannot broadcast or music at hand when the FM/AM signals and the network signals are in dead corners is avoided; the method for automatically switching the multifunctional mobile phone among the FM/AM mobile phone, the network radio and the vehicle-mounted MP3 or the mobile phone MP3 is provided, and the listening mode is automatically switched according to the strength of FM/AM signals and network signals.
Drawings
FIG. 1 is a block diagram of an embodiment of a vehicle multifunctional radio module;
FIG. 2 is a flow chart illustrating a method for switching between in-vehicle multi-function radios in one embodiment.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples.
Example one
Referring to fig. 1, a vehicle-mounted multifunctional radio comprises a processor, a signal processing module, a power amplifier module, a network communication module and an FM/AM communication module, wherein the processor is respectively in communication connection with the signal processing module, the power amplifier module, the network communication module and the FM/AM communication module, and the signal processing module is respectively in communication connection with the power amplifier module, the network communication module and the FM/AM communication module.
The processor is used for controlling the signal processing module, the power amplification module, the network communication module and the FM/AM communication module to work and monitoring the strength of signals received by the network communication module and the FM/AM communication module, the signal processing module is used for processing FM/AM signals or network radio signals into audio signals, the power amplification module amplifies and plays the audio signals, the network communication module is used for receiving the network radio signals, and the FM/AM communication module is used for receiving the FM/AM signals.
The network communication module and the FM/AM communication module are both provided with antennas, and receive signals through the antennas; the network communication module is a 3G/4G communication module and can receive 3G/4G network radio signals; the power amplification module comprises a loudspeaker, and the power amplification module amplifies the audio signal and then plays the audio signal through the loudspeaker; the processor is an MCU and comprises control software for controlling each module; the signal processing module comprises a selector switch, and the selector switch is used for switching the signal processing module to be in communication connection with the network communication module or in communication connection with the FM/AM communication module.
The processor is in communication connection with an external vehicle-mounted MP3 and a vehicle-mounted Bluetooth communication module, and the change-over switch is also used for the signal processing module to be in communication connection with an external vehicle-mounted MP3 or the Bluetooth communication module.
Example two
Referring to fig. 2, a method for switching a car-mounted multifunctional radio includes the following steps:
s1, the processor monitors the signal intensity of RSSI _ A, WAM, USN of the FM/AM communication module and RSSI _ B of the 3G/4G communication module in real time, when the processor monitors that RSSI _ A is less than or equal to 30 dBaV (dBaV is a voltage unit, the conversion success rate of 30 dBaV is-77 dBm), RSSI _ B is greater than or equal to-90 dBm and at least one of WAM and USN is greater than or equal to 30, the step S2 is executed, when RSSI _ A is greater than 30 dBaV, RSSI _ B is less than-90 dBm and WAM and USN are both less than 30, the step S3 is executed, when RSSI _ A is greater than 30 dBaV, RSSI _ B is greater than or equal to-90 dBm and at least one of WAM and USN is greater than or equal to 30, the step S2 is executed, when RSSI _ A is greater than 30 dBaV, RSSI _ B is less than-90 dBm and at least one of WAM and USN is greater than or equal to 30, the step S4 is;
s2, the processor controls the network communication module to receive the network radio signals, controls the signal processing module to convert the network radio signals into audio signals, and controls the power amplification module to play the audio signals;
s3, the processor controls the FM/AM communication module to receive FM/AM signals, controls the signal processing module to convert the FM/AM signals into audio signals, and controls the power amplification module to play the audio signals;
s4, the processor controls the signal processing module to be accessed to the vehicle MP3 for processing and then played by the power amplifier module, or to be accessed to the vehicle Bluetooth module to be connected with the mobile phone MP3, and the signal processing module processes and then plays by the power amplifier module.
The foregoing is a detailed description of the invention, which is described in greater detail and not intended to limit the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications are possible without departing from the inventive concept, and such obvious alternatives fall within the scope of the invention.
Claims (10)
1. A switching method of a vehicle-mounted multifunctional radio is characterized by comprising the following steps:
s1, the processor monitors the signal strength of RSSI _ A, WAM and USN of the FM/AM communication module and RSSI _ B of the 3G/4G communication module in real time, when the processor detects that the RSSI _ a value is less than or equal to the preset threshold value, the RSSI _ B value is greater than or equal to the preset threshold value, and the value of at least one of the WAM and the USN is greater than or equal to the preset threshold value, the processor executes step S2, when it is detected that the RSSI _ a value is greater than the predetermined threshold value, the RSSI _ B value is less than the predetermined threshold value, and the values of the WAM and USN are both less than the predetermined threshold values, step S3 is executed, when the RSSI _ a value is greater than the predetermined threshold, the RSSI _ B value is greater than or equal to the predetermined threshold, and the value of at least one of the WAM and USN is greater than or equal to the predetermined threshold, step S2 is executed, when the RSSI _ a value is greater than the preset threshold, the RSSI _ B value is less than the preset threshold, and the value of at least one of the WAM and the USN is greater than the preset threshold, the step S4 is executed;
s2, the processor controls the network communication module to receive the network radio signals, controls the signal processing module to convert the network radio signals into audio signals, and controls the power amplification module to play the audio signals;
s3, the processor controls the FM/AM communication module to receive FM/AM signals, controls the signal processing module to convert the FM/AM signals into audio signals, and controls the power amplification module to play the audio signals;
s4, the processor controls the signal processing module to access to other sound sources, processes the sound sources and then plays the sound sources through the power amplifier module;
wherein, RSSI _ a is the receiver signal strength indication of FM/AM communication module, WAM is the multipath interference strength, USN is the adjacent channel signal strength, and RSSI _ B is the receiver signal strength indication of 3G/4G communication module.
2. The switching method of car-mounted multifunctional radio according to claim 1, characterized in that: the preset threshold value of the RSSI _ A is-77 dBm, the preset threshold value of the RSSI _ B is-90 dBm, and the preset threshold values of the WAM and the USN are both 30.
3. The switching method of car-mounted multifunctional radio according to claim 1, characterized in that: the power amplification module amplifies the audio signal before playing the audio signal.
4. The switching method of car-mounted multifunctional radio according to claim 1, characterized in that: the other sound sources comprise a vehicle MP3 or a mobile phone MP3 accessed by Bluetooth.
5. A vehicle-mounted multifunctional radio utilizing the switching method of any one of claims 1 ~ 4, comprising a processor, a signal processing module, a power amplifier module, a network communication module and an FM/AM communication module, wherein the processor is used for controlling the signal processing module, the power amplifier module, the network communication module and the FM/AM communication module to work and monitoring the strength of signals received by the network communication module and the FM/AM communication module, the signal processing module is used for processing FM/AM signals or network radio signals into audio signals, the power amplifier module is used for amplifying and playing the audio signals, the network communication module is used for receiving network radio signals, and the FM/AM communication module is used for receiving FM/AM signals.
6. The car-mounted multi-function radio of claim 5, wherein: the signal processing module comprises a change-over switch, and the change-over switch is used for changing over the communication connection between the signal processing module and the network communication module or the communication connection between the signal processing module and the FM/AM communication module.
7. The car-mounted multi-function radio of claim 5, wherein: the power amplifier module include loudspeaker, loudspeaker are used for playing audio signal.
8. The car-mounted multi-function radio of claim 5, wherein: and the network communication module and the FM/AM communication module are both provided with antennas.
9. The car-mounted multi-function radio of claim 5, wherein: the network communication module is a 3G/4G communication module.
10. The car-mounted multi-function radio of claim 9, wherein: the processor is an MCU and is provided with control software.
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| CN201710778732.7A CN107592123B (en) | 2017-09-01 | 2017-09-01 | Vehicle-mounted multifunctional radio and switching method |
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| CN201710778732.7A CN107592123B (en) | 2017-09-01 | 2017-09-01 | Vehicle-mounted multifunctional radio and switching method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7447171B2 (en) * | 2004-06-14 | 2008-11-04 | Xm Satellite Radio, Inc. | Antenna diversity system |
| CN102932081A (en) * | 2011-08-10 | 2013-02-13 | 盛乐信息技术（上海）有限公司 | Automatic switching system for radio station and Internet radio and implementation method for automatic switching system |
| CN102957957A (en) * | 2011-08-23 | 2013-03-06 | 广州三星通信技术研究有限公司 | Device and method for play control of real-time data in mobile electronic equipment |
| CN102638321B (en) * | 2012-03-22 | 2015-01-07 | 广东欧珀移动通信有限公司 | Computing method for automatically switching broadcasting stations |
| CN103888164A (en) * | 2014-03-11 | 2014-06-25 | 惠州Tcl移动通信有限公司 | Wireless communication device and achieving system and method of broadcast smart playing thereof |
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