CN112653530A - Vehicle-mounted radio, rapid channel searching method, system, medium and vehicle machine thereof - Google Patents
Vehicle-mounted radio, rapid channel searching method, system, medium and vehicle machine thereof Download PDFInfo
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- CN112653530A CN112653530A CN201910968761.9A CN201910968761A CN112653530A CN 112653530 A CN112653530 A CN 112653530A CN 201910968761 A CN201910968761 A CN 201910968761A CN 112653530 A CN112653530 A CN 112653530A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
- H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
- H04H60/43—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast channels
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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
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
- H04H20/62—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast for transportation systems, e.g. in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
- H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
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Abstract
The invention provides a vehicle-mounted radio and a rapid channel searching method, a rapid channel searching system, a rapid channel searching medium and a vehicle machine thereof, wherein the method comprises the following steps: judging whether the vehicle-mounted radio is connected with a network signal or not; acquiring the current position information of the vehicle when a network signal exists; and acquiring all frequency point information within a receivable range of the current position of the vehicle through a network based on the current position information of the vehicle, and sending the all frequency point information to a vehicle-mounted radio of the vehicle. The vehicle-mounted radio and the rapid channel searching method, system, medium and vehicle machine thereof are used for facilitating the radio to rapidly acquire all frequency point information of the current position of a vehicle.
Description
Technical Field
The invention relates to the technical field of radios, in particular to a vehicle-mounted radio and a rapid channel searching method, system, medium and vehicle machine thereof.
Background
A radio is composed of mechanical parts, electronic parts and magnet, and can convert electric wave signal into audio signal by electric energy and listen to the audio signal transmitted by radio station. Also known as radio, broadcast, etc. The digital age of radio has come. The high frequency signal received from the antenna is restored to audio signal by detection (demodulation), and then sent to earphone or loudspeaker to become sound wave. Due to technological advances, there are many different frequencies of radio waves in the sky. If all of these waves are received, the audio signal will be as busy as in the city, and many sounds will be mixed together, and as a result, nothing will be heard. After the receiving antenna, there is a selective circuit which is used to select the desired signal (station) and to "filter out" the unwanted signals so as not to interfere, i.e. the "select" button used when listening to the broadcast. The output of the selective circuit is a high-frequency amplitude-modulated signal of a selected radio station, which is not used for directly driving an earphone (an electroacoustic device) and must be restored into an original audio signal.
Before listening in the existing vehicle-mounted radio, frequency band scanning is needed to obtain all frequency point information, so that all frequency bands need to be scanned to obtain all effective frequency points which can be listened currently; in the scanning process, a frequency band needs to be scanned, for example, the preset frequency band is 76MHz-90MHz, that is, the search range of the preset FM radio frequency is 76MHz-90MHz, all frequency points in the range of 76MHz-90MHz need to be scanned, so as to obtain all effective frequency points that can be listened to currently. Thus, the scanning of the frequency band is time-consuming, and the user is often required to wait for a while.
Therefore, it is desirable to solve the problem of how to acquire effective frequency points more quickly.
Disclosure of Invention
In view of the above drawbacks of the prior art, an object of the present invention is to provide a car radio, a method, a system, a medium and a car machine for fast searching channels thereof, which are used to solve the problem of how to obtain effective frequency points faster in the prior art.
In order to achieve the above and other related objects, the present invention provides a method for quickly searching channels in a car radio, comprising the steps of: judging whether a network signal is connected; acquiring the current position information of the vehicle when a network signal exists; and acquiring all frequency point information within a receivable range of the current position of the vehicle through a network based on the current position information of the vehicle, and sending the all frequency point information to a vehicle-mounted radio of the vehicle.
In an embodiment of the present invention, the method further includes: and when no network signal exists, scanning the frequency band based on the vehicle-mounted radio to acquire all frequency point information.
In an embodiment of the present invention, the obtaining, through a network, all frequency point information within a receivable range of a current position of a vehicle based on the current position information of the vehicle includes: sending a radio station information acquisition request to a third-party audio platform, wherein the radio station information acquisition request comprises the current position information of the vehicle; receiving all radio station information based on the current position information of the vehicle, which is sent by the third-party audio platform; and sending all frequency point information corresponding to all the radio station information to the vehicle-mounted radio.
In an embodiment of the present invention, the current position information of the vehicle is obtained through a network or a vehicle-mounted GPS.
In order to achieve the above object, the present invention further provides a system for quickly searching a channel of a car radio, including: the device comprises a judging module, a first obtaining module and a sending module; the judging module is used for judging whether a network signal is connected or not; the first acquisition module is used for acquiring the current position information of the vehicle when a network signal exists; the sending module is used for acquiring all frequency point information within a receivable range of the current position of the vehicle through a network based on the current position information of the vehicle, and sending the all frequency point information to a vehicle-mounted radio of the vehicle.
In an embodiment of the present invention, the apparatus further includes a second obtaining module; and the second acquisition module is used for scanning frequency bands based on the vehicle-mounted radio when no network signal exists, and acquiring all frequency point information.
In an embodiment of the present invention, the sending module is further configured to send a message; sending a radio station information acquisition request to a third-party audio platform, wherein the radio station information acquisition request comprises the current position information of the vehicle; receiving all radio station information based on the current position information of the vehicle, which is sent by the third-party audio platform; and sending all frequency point information corresponding to all the radio station information to the vehicle-mounted radio.
In an embodiment of the invention, the first obtaining module is further configured to obtain the current location information of the vehicle through a network or a vehicle-mounted GPS.
To achieve the above object, the present invention further provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the method for fast channel search of any of the above-mentioned car radios.
In order to achieve the above object, the present invention also provides a car radio, including: the system comprises a processor, a network module, a frequency modulation module and an audio playing module; the network module is connected with the processor and used for judging whether a network signal is connected; the processor is used for acquiring the current position information of the vehicle, and acquiring all frequency point information within a receivable range of the current position of the vehicle based on the current position information of the vehicle; the frequency modulation module is connected with the processor and is used for receiving the designated frequency point information sent by the processor, receiving radio frequency modulation signals based on the designated frequency point information and converting the radio frequency modulation signals into audio signals; the audio playing module is connected with the frequency modulation module and is used for playing the audio signal sent by the frequency modulation module.
In an embodiment of the present invention, the present invention further includes a navigation module; the navigation module is connected with the processor and used for acquiring the current position information of the vehicle and sending the current position information of the vehicle to the processor.
In an embodiment of the present invention, the display device further includes a display module; and the display module is connected with the processor and is used for displaying all the frequency point information and the radio station information corresponding to all the frequency point information.
In an embodiment of the present invention, the present invention further includes an input module; the input module is connected with the processor and is used for receiving the user selection frequency point information selected by the user from all the frequency point information and sending the user selection frequency point information to the processor.
Finally, the invention also provides a vehicle-mounted machine, which comprises any vehicle-mounted radio.
In an embodiment of the present invention, the method further includes: the vehicle-mounted T-BOX is used for acquiring the current position information of a vehicle, acquiring all frequency point information based on the current position information of the vehicle, and sending the all frequency point information to the vehicle-mounted radio.
As described above, the vehicle-mounted radio, the rapid channel searching method, the rapid channel searching system, the rapid channel searching medium and the vehicle-mounted radio provided by the invention have the following beneficial effects: the radio is convenient to rapidly acquire all frequency point information of the current position of the vehicle, and the waiting time of a user is reduced.
Drawings
FIG. 1a is a schematic structural diagram of an intelligent vehicle platform according to an embodiment of the present invention;
FIG. 1b is a schematic diagram of a car radio according to an embodiment of the present invention;
FIG. 1c is a schematic view of a car radio according to still another embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a car radio according to another embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for fast channel searching of a car radio according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a fast channel searching system of a car radio according to an embodiment of the present invention;
FIG. 5a is a schematic structural diagram of a vehicle according to an embodiment of the present invention;
FIG. 5b is a schematic structural diagram of a vehicle according to yet another embodiment of the present invention;
FIG. 5c is a schematic structural diagram of a vehicle according to still another embodiment of the present invention.
Description of the element reference numerals
21 judging module
22 first acquisition module
23 sending module
31 processor
32 network module
33 navigation module
34 frequency modulation module
35 audio playing module
41 CPU
42 network module
43 navigation module
44 frequency modulation module
441 radio antenna
442 high frequency head
443 phase-locked loop
45 audio playing module
451 loudspeaker
452 Power amplifier IC
453 audio IC
46 memory
47 input module
48 display module
51 vehicle radio
52 vehicle mounted T-BOX
53 vehicle GPS
Steps S11-S13
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, so that the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, the type, quantity and proportion of the components in actual implementation can be changed freely, and the layout of the components can be more complicated.
The vehicle-mounted radio and the rapid channel searching method, system, medium and vehicle machine thereof facilitate the radio to rapidly acquire all frequency point information of the current position of the vehicle, and reduce the waiting time of a user.
In the prior art, before listening to a vehicle-mounted radio, frequency band scanning is required to acquire all frequency point information, so that all frequency bands are required to be scanned to acquire all currently listened effective frequency points, for example, if a search range of preset FM radio frequency is 76MHz-90MHz, all frequency points in the range of 76MHz-90MHz are required to be scanned to acquire all currently listened effective frequency points. Thus, the scanning of the frequency band is time-consuming, and the user is often required to wait for a while. Under the condition that the network signal is connected, the radio is not adopted for frequency band scanning to acquire all frequency point information, but all frequency point information in a receivable range of the current position of the vehicle is acquired through the network, so that the frequency point information is transmitted to the vehicle-mounted radio of the vehicle, the frequency band scanning is performed before the vehicle-mounted radio is listened to, all frequency point information is acquired, the radio is convenient to acquire all frequency point information of the current position of the vehicle quickly, and the waiting time of a user is reduced.
As shown in fig. 1a, in an embodiment, the intelligent vehicle-mounted platform of the present invention includes the following components: divided into user space and kernel space. The user space includes, but is not limited to: the system comprises a human-computer interaction module, an operating system module and a system service module. The man-machine interaction module provides an intelligent man-machine interaction interface, such as vehicle body control based on a touch screen, remote intelligent monitoring and the like; managing applications, such as adding, upgrading, deleting applications, etc.; providing operating environments of various applications; and wireless network services are provided for remote intelligent control and network application. The human-computer interaction module includes but is not limited to: the system comprises an application layer, a database, an application framework layer, a system running layer and a kernel, wherein the application layer comprises but is not limited to: vehicle-mounted entertainment, network intelligence and intelligent control. The operating system modules include, but are not limited to: the system comprises a vehicle control system, a health management layer, a communication service layer, a communication hardware abstraction layer and a communication driving layer. The system service modules include, but are not limited to: file system, network stack, memory management, driver, domain name server. The kernel space includes but is not limited to: microkernel, boot program, hardware virtual tool. The microkernel includes the basic services of the operating system, such as process control, memory management, interprocess communication, and the like. The kernel has small volume and high performance, provides an interface required by virtualization, and is suitable for realizing virtualization on an embedded platform. The intelligent vehicle-mounted platform is used for realizing the vehicle-mounted radio and the using method thereof. The intelligent vehicle-mounted platform realizes the simultaneous operation of virtual machines facing a human-computer interaction module and a real-time control-oriented operating system module based on the same hardware platform. Good human-computer interaction is supported, and real-time vehicle control and information safety guarantee can be provided. The whole system is established on the basis of network interconnection, supports a cloud service platform, can conveniently download applications, and is an intelligent vehicle-mounted platform which provides communication, information consultation, safety guarantee, diagnosis and maintenance, travel and life convenience for drivers and vehicles. The intelligent vehicle-mounted platform is also used for supporting the vehicle-mounted radio to work and supporting the operation of the rapid channel searching method of the vehicle-mounted radio.
Specifically, for example, the conventional method for searching stations by scanning frequency bands of car radios: through the set lowest frequency point and the highest frequency point, the lowest frequency point of a general system is dozens of MHz, then when the frequency is increased by 8M (specifically, the frequency can be set according to actual requirements), the highest frequency point is searched in sequence, program information of the frequency point is searched, a certain specific storage space is written, and finally, nonvolatile storage spaces such as E2PROM are written. It is essential to store each receivable frequency point in turn, thereby obtaining all frequency point information. The method for searching the radio station frequency from the lowest frequency point to the highest frequency point in sequence needs to consume more time, so that the waiting time of a user is increased, and the listening experience of the user is influenced.
As shown in fig. 1b, in one embodiment, the car radio of the present invention includes: processor 31, network module 32, frequency modulation module 34 and audio playing module 35; the network module 32 is connected to the processor 31 and configured to determine whether a network signal is connected thereto; the processor 31 is configured to obtain current position information of a vehicle, and receive all frequency point information based on all frequency point information in a receivable range of the current position of the vehicle obtained from the current position information of the vehicle; the frequency modulation module 34 is connected to the processor 31, and is configured to receive the designated frequency point information sent by the processor 31, receive a radio frequency modulation signal based on the designated frequency point information, and convert the radio frequency modulation signal into an audio signal; the audio playing module 35 is connected to the frequency modulation module 34, and is configured to play the audio signal sent by the frequency modulation module 34.
As shown in fig. 1c, in one embodiment, the car radio of the present invention includes: the system comprises a processor 31, a network module 32, a frequency modulation module 34, an audio playing module 35 and a navigation module 33; the network module 32 is connected to the processor 31 and configured to determine whether a network signal is connected thereto; the processor 31 is configured to obtain current position information of a vehicle, and receive all frequency point information based on all frequency point information in a receivable range of the current position of the vehicle obtained from the current position information of the vehicle; the frequency modulation module 34 is connected to the processor 31, and is configured to receive the designated frequency point information sent by the processor 31, receive a radio frequency modulation signal based on the designated frequency point information, and convert the radio frequency modulation signal into an audio signal; the audio playing module 35 is connected to the frequency modulation module 34, and is configured to play the audio signal sent by the frequency modulation module 34. The navigation module 33 is connected to the processor 31, and configured to acquire current position information of a vehicle and send the current position information of the vehicle to the processor 31.
Preferably, the Processor 31 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components.
As shown in fig. 2, in one embodiment, the car radio of the present invention includes: a processor, a frequency modulation module 44, an audio playing module 45 and a memory 46; the processor is a CPU41 and is used for receiving the information of all frequency points; the fm module 44 is connected to the processor, and configured to receive the designated frequency point information sent by the processor, receive a radio fm signal based on the designated frequency point information, and convert the radio fm signal into an audio signal, where the fm module 44 includes a radio antenna 441, a tuner 442, and a phase-locked loop 443, and the radio antenna 441 is connected to the tuner 442; the radio antenna 441 is configured to receive a radio fm/am signal and send the radio fm/am signal to the tuner 442; the tuner 442 is connected to the phase-locked loop 443, and the phase-locked loop 443 is configured to send out a variable frequency signal, adjust the voltage of the frequency-modulated and amplitude-modulated varactor, and change the capacitance value of the capacitor, so as to change the oscillation frequency, thereby meeting the requirements of channel searching and channel stopping. The audio playing module 45 is connected to the fm module 44 and configured to play the audio signal sent by the fm module 44, the audio playing module 45 includes an audio IC453, a power amplifier IC452, and a speaker 451, the audio IC453 is connected to the tuner 442, the audio IC453 is connected to the power amplifier IC452, the power amplifier IC452 is connected to the speaker 451, after the tuner 442 sends the audio signal to the audio IC453, the audio IC453 transmits the sound signal to the power amplifier IC452, and the power amplifier IC452 drives the speaker 451 to make sound.
In an embodiment, the mobile terminal further includes a network module 42, where the network module 42 is connected to the processor and configured to acquire current position information of a vehicle, acquire all frequency point information based on the current position information of the vehicle, and send the all frequency point information to the processor, and the network module 42 further includes a wireless communication antenna, where the wireless communication antenna is configured to receive a communication signal sent by a base station.
In an embodiment, the navigation system further includes a navigation module 43, where the navigation module 43 is connected to the processor and configured to acquire current position information of the vehicle and send the current position information of the vehicle to the processor, and the navigation module 43 further includes a positioning antenna, where the positioning antenna is configured to receive the current position information of the vehicle sent by the positioning system.
In an embodiment, the radio communication device further includes a display module 48, where the display module 48 is connected to the processor and is configured to display all the frequency point information and the radio station information corresponding to all the frequency point information. The display module 48 includes, but is not limited to, an LCD/LED display screen.
In an embodiment, the mobile terminal further includes an input module 47, and the input module 47 is connected to the processor and configured to input the designated frequency point information selected by the user, and send the designated frequency point information to the processor.
As shown in fig. 3, in an embodiment, the method for quickly searching channels of a car radio of the present invention includes the following steps:
step S11, it is determined whether a network signal is connected.
Specifically, before judging whether a network signal is connected, judging whether the signal intensity of the vehicle-mounted radio is lower than a first preset value, wherein the signal intensity refers to the inductance intensity, and when the inductance intensity of the vehicle-mounted radio is lower than the first preset value, the conditions that the signal listened to by the vehicle-mounted radio is unstable, the sound is suddenly high and suddenly low, the interference sound occurs, and the like can occur. The first preset value may be preset according to the listening quality of the user to the car radio. And only when the signal intensity of the vehicle-mounted radio is lower than a first preset value, judging whether a network signal is connected. Otherwise, the vehicle-mounted radio can continue to play the original radio station without the necessity of quickly searching the radio station.
Specifically, the connection of the network signal is made through 3G, 4G, or WiFi.
Specifically, the connection of the network signal is performed by the network module.
Specifically, the network signal is connected through the vehicle-mounted T-BOX. The T-BOX is a BOX on the automobile, which is actually a BOX with the communication function of an operating system, contains a SIM card, generally the SIM card of a communication company, and is matched with hardware such as a GPS antenna, a 4G antenna and the like. Therefore, the T-BOX can provide an extranet connection function, and the Tbox can provide a GPS positioning service.
Specifically, whether a network signal is connected is determined by calling the API. Specifically, the network connection state is acquired by calling the API, and whether a network signal is connected or not is judged. An API (Application Programming Interface) is a predefined function that is intended to provide applications and developers the ability to access a set of routines based on certain software or hardware, without having to access source code or understand the details of the internal workings.
And step S12, acquiring the current position information of the vehicle when the network signal exists.
Specifically, the current position information of the vehicle is acquired through a network or an onboard GPS. The step of obtaining the current position information of the vehicle through the network is to position through a base station: the base station positioning is generally applied to mobile phone users, and the mobile phone base station positioning Service is also called as mobile Location Service (LBS — Location Based Service), which is a value-added Service that obtains Location information (longitude and latitude coordinates) of mobile terminal users through a network (such as a GSM network) of a telecom mobile operator and provides corresponding services for the users under the support of an electronic map platform. And acquiring the current longitude and latitude coordinates of the vehicle through a network, and acquiring the current position information of the vehicle under the support of an electronic map platform. The Global Positioning System (also called Global Positioning System) is a medium-distance circular orbit satellite navigation System. The device can provide accurate positioning, speed measurement and high-precision time standard for most of the area (98%) of the earth surface. The system is developed and maintained by the U.S. department of defense and can meet the requirements of military users located anywhere or in near-earth space around the world for continuously and accurately determining three-dimensional position, three-dimensional motion and time. The system comprises 24 GPS satellites in space; the system comprises 1 main control station, 3 data injection stations, 5 monitoring stations and a GPS receiver as a user side on the ground. The position and the altitude of the user terminal on the earth can be quickly determined by only 3 satellites at least; the more satellites that can be coupled, the more accurate the decoded position. And the vehicle-mounted GPS is the GPS receiver which is used as the user terminal. The vehicle-mounted GPS has various types, including a vehicle built-in DVD system navigator, an external portable vehicle-mounted navigator, a handheld PDA mobile phone navigation device, a Bluetooth GPS receiving module and the like.
Specifically, the current position information of the vehicle is acquired through the network when there is a network signal, but if the acquisition fails, the current position information of the vehicle may also be acquired through the onboard GPS.
Specifically, the method further comprises verifying the validity of the current position information of the vehicle. Specifically, first current position information of a vehicle is obtained through a network; acquiring second current position information of the vehicle through the vehicle-mounted GPS; and judging whether the first current position information of the vehicle is consistent with the second current position information of the vehicle, wherein the current position information of the vehicle is effective information when the first current position information of the vehicle is consistent with the second current position information of the vehicle. Specifically, comparing whether the difference between the longitude of the first current position information of the vehicle and the longitude of the second current position information of the vehicle is within a first error range; and comparing whether the difference between the latitude of the first current position information of the vehicle and the latitude of the second current position information of the vehicle is within a second error range. The vehicle current position information is valid information when a difference between the longitude of the vehicle first current position information and the longitude of the vehicle second current position information is within a first error range and a difference between the latitude of the vehicle first current position information and the latitude of the vehicle second current position information is within a second error range.
And step S13, acquiring all frequency point information within a receivable range of the current position of the vehicle through a network based on the current position information of the vehicle, and sending the all frequency point information to the vehicle-mounted radio of the vehicle.
Specifically, only when the vehicle enters a second region from a first region, all frequency point information within a receivable range of the current position of the vehicle is acquired through a network based on the current position information of the vehicle, and the frequency point information is sent to a vehicle-mounted radio of the vehicle. The step of determining whether the vehicle enters the second region from the first region comprises the steps of: the method comprises the steps of obtaining current position information of a vehicle and historical position information of the vehicle, comparing whether the current position information of the vehicle and the historical position information of the vehicle represent the same city or not, and when the current position information of the vehicle and the historical position information of the vehicle represent the same city, enabling the vehicle not to enter a second region from a first region, and not obtaining all frequency point information within a receivable range of the current position of the vehicle through a network according to the current position information of the vehicle. And when the current position information of the vehicle and the historical position information of the vehicle do not represent the same city, the vehicle enters a second region from the first region, and the step of acquiring all frequency point information within the receivable range of the current position of the vehicle through the network according to the current position information of the vehicle is only carried out. Specifically, the historical position information of the vehicle is vehicle position information before a preset time period. Otherwise, if the vehicle does not go from one city to another, the car radio can continue to play the original radio station without the necessity of performing a quick search.
Specifically, the obtaining of all frequency point information of the current position of the vehicle through the network based on the current position information of the vehicle includes: sending a radio station information acquisition request to a third-party audio platform, wherein the radio station information acquisition request comprises the current position information of the vehicle; receiving all radio station information based on the current position information of the vehicle, which is sent by the third-party audio platform; and sending all frequency point information corresponding to all the radio station information to the vehicle-mounted radio. In particular, the third party audio platform includes, but is not limited to, a himalayan platform, a dragonfly fm platform. Sending a radio station information acquisition request to the third-party audio platform, wherein the radio station information acquisition request comprises: the vehicle current location information and all station information requests based on the vehicle current location information. And the third-party audio platform acquires all the radio stations which can be listened to at the current position of the vehicle based on the current position information of the vehicle and all the radio station information requests based on the current position information of the vehicle, namely acquiring the radio station information of all the radio stations. Therefore, the station information of all the stations can be acquired more conveniently based on the third-party audio platform, and extra energy is not needed to be spent on the arrangement of the station information of all the stations. The station information includes but is not limited to: radio station name information, frequency point information and radio station program information. The frequency point information includes but is not limited to: AM frequency points and/or FM frequency points. The frequency point information can also only provide AM frequency points or FM frequency points. And verifying the validity of all the radio station information, and sending all the frequency point information corresponding to the valid radio station information to the vehicle-mounted radio. Specifically, the current position of the vehicle is distinguished by city. For example: and acquiring longitude and latitude coordinates of 31 degrees and 11 minutes of north latitude and 121 degrees and 29 minutes of east longitude through a network, wherein the city where the current position of the vehicle is located is Shanghai, and the current position of the vehicle is Shanghai city. And sending all the radio station information of the acquired Shanghai city, namely all the frequency point information in the receivable range of the current position of the vehicle, namely all the radio station information of all the radio stations which can be listened to in the Shanghai city, to the Himalayan platform. As shown in the all station information table for all stations that shanghai city can listen to.
Specifically, verifying the validity of all the station information includes: judging whether the radio station information simultaneously comprises: and the frequency point information at least comprises the FM frequency point or the AM frequency point. Verifying the validity of the all-station information further comprises: and judging whether the radio station information is effective information. For example, the station name: ningbo □ □, station program: text □, frequency point FM is: fm99.7mhz, although containing both the station name information and the frequency point information, since the station name: ningbo □ □ and station: if the information in article □ is ambiguous, the station name is determined as: ningbo □ □, station program: text □, frequency point FM is: the station information of fm99.7mhz is invalid information. And sending the corresponding frequency point information of the radio station information verified as effective information to the vehicle-mounted radio.
Specifically, when no network signal exists, frequency band scanning is carried out based on the vehicle-mounted radio, and all frequency point information is obtained.
Specifically, the frequency band scanning function of the vehicle-mounted radio is used for scanning all the preset frequency band ranges to acquire all frequency point information. The all frequency point information refers to the frequency point information of all frequency points which can be received by the vehicle-mounted radio at the current position of the vehicle.
As shown in fig. 4, in an embodiment of the present invention, the system for quickly searching channels of a car radio includes a determining module 21, a first obtaining module 22 and a sending module 23.
The judging module 21 is configured to judge whether a network signal is connected.
Specifically, before judging whether a network signal is connected, a pre-judging module is further used for judging whether the signal intensity of the vehicle-mounted radio is lower than a first preset value, wherein the signal intensity refers to the inductance intensity, and when the inductance intensity of the vehicle-mounted radio is lower than the first preset value, the conditions that the signal listened by the vehicle-mounted radio is unstable, the sound is suddenly high and suddenly low, the interference sound occurs, and the like can occur. The first preset value may be preset according to the listening quality of the user to the car radio. And only when the signal intensity of the vehicle-mounted radio is lower than a first preset value, judging whether a network signal is connected. Otherwise, the vehicle-mounted radio can continue to play the original radio station without the necessity of quickly searching the radio station.
Specifically, the connection of the network signal is made through 3G, 4G, or WiFi.
Specifically, the connection of the network signal is performed by the network module.
Specifically, the network signal is connected through the vehicle-mounted T-BOX. The T-BOX is a BOX on the automobile, which is actually a BOX with the communication function of an operating system, contains a SIM card, generally the SIM card of a communication company, and is matched with hardware such as a GPS antenna, a 4G antenna and the like. Therefore, the T-BOX can provide an extranet connection function, and the Tbox can provide a GPS positioning service.
Specifically, whether a network signal is connected is determined by calling the API. Specifically, the network connection state is acquired by calling the API, and whether a network signal is connected or not is judged. An API (Application Programming Interface) is a predefined function that is intended to provide applications and developers the ability to access a set of routines based on certain software or hardware, without having to access source code or understand the details of the internal workings.
The first obtaining module 22 is configured to obtain the current position information of the vehicle when there is a network signal.
Specifically, the current position information of the vehicle is acquired through a network or an onboard GPS. The step of obtaining the current position information of the vehicle through the network is to position through a base station: the base station positioning is generally applied to mobile phone users, and the mobile phone base station positioning Service is also called as mobile Location Service (LBS — Location Based Service), which is a value-added Service that obtains Location information (longitude and latitude coordinates) of mobile terminal users through a network (such as a GSM network) of a telecom mobile operator and provides corresponding services for the users under the support of an electronic map platform. And acquiring the current longitude and latitude coordinates of the vehicle through a network, and acquiring the current position information of the vehicle under the support of an electronic map platform. The Global Positioning System (also called Global Positioning System) is a medium-distance circular orbit satellite navigation System. The device can provide accurate positioning, speed measurement and high-precision time standard for most of the area (98%) of the earth surface. The system is developed and maintained by the U.S. department of defense and can meet the requirements of military users located anywhere or in near-earth space around the world for continuously and accurately determining three-dimensional position, three-dimensional motion and time. The system comprises 24 GPS satellites in space; the system comprises 1 main control station, 3 data injection stations, 5 monitoring stations and a GPS receiver as a user side on the ground. The position and the altitude of the user terminal on the earth can be quickly determined by only 3 satellites at least; the more satellites that can be coupled, the more accurate the decoded position. And the vehicle-mounted GPS is the GPS receiver which is used as the user terminal. The vehicle-mounted GPS has various types, including a vehicle built-in DVD system navigator, an external portable vehicle-mounted navigator, a handheld PDA mobile phone navigation device, a Bluetooth GPS receiving module and the like.
Specifically, the first obtaining module 22 is further configured to obtain the current position information of the vehicle through the network when there is a network signal, but if the obtaining fails, the current position information of the vehicle may also be obtained through the onboard GPS.
Specifically, the first obtaining module 22 is further configured to verify the validity of the current position information of the vehicle. Specifically, first current position information of a vehicle is obtained through a network; acquiring second current position information of the vehicle through the vehicle-mounted GPS; and judging whether the first current position information of the vehicle is consistent with the second current position information of the vehicle, wherein the current position information of the vehicle is effective information when the first current position information of the vehicle is consistent with the second current position information of the vehicle. Specifically, comparing whether the difference between the longitude of the first current position information of the vehicle and the longitude of the second current position information of the vehicle is within a first error range; and comparing whether the difference between the latitude of the first current position information of the vehicle and the latitude of the second current position information of the vehicle is within a second error range. The vehicle current position information is valid information when a difference between the longitude of the vehicle first current position information and the longitude of the vehicle second current position information is within a first error range and a difference between the latitude of the vehicle first current position information and the latitude of the vehicle second current position information is within a second error range.
The sending module 23 is configured to obtain all frequency point information of the current position of the vehicle through a network based on the current position information of the vehicle, and send the all frequency point information to the vehicle-mounted radio.
Specifically, only when the vehicle enters a second region from a first region, all frequency point information within a receivable range of the current position of the vehicle is acquired through a network based on the current position information of the vehicle, and the frequency point information is sent to a vehicle-mounted radio of the vehicle. The sending module 23 is further configured to determine whether the vehicle enters a second region from a first region: the method comprises the steps of obtaining current position information of a vehicle and historical position information of the vehicle, comparing whether the current position information of the vehicle and the historical position information of the vehicle represent the same city or not, and when the current position information of the vehicle and the historical position information of the vehicle represent the same city, enabling the vehicle not to enter a second region from a first region, and not obtaining all frequency point information within a receivable range of the current position of the vehicle through a network according to the current position information of the vehicle. And when the current position information of the vehicle and the historical position information of the vehicle do not represent the same city, the vehicle enters a second region from the first region, and the step of acquiring all frequency point information within the receivable range of the current position of the vehicle through the network according to the current position information of the vehicle is only carried out. Specifically, the historical position information of the vehicle is vehicle position information before a preset time period. Otherwise, if the vehicle does not go from one city to another, the car radio can continue to play the original radio station without the necessity of performing a quick search.
Specifically, the sending module 23 is further configured to: sending a radio station information acquisition request to a third-party audio platform, wherein the radio station information acquisition request comprises the current position information of the vehicle; receiving all radio station information based on the current position information of the vehicle, which is sent by the third-party audio platform; and sending all frequency point information corresponding to all the radio station information to the vehicle-mounted radio. In particular, the third party audio platform includes, but is not limited to, a himalayan platform, a dragonfly fm platform. Sending a radio station information acquisition request to the third-party audio platform, wherein the radio station information acquisition request comprises: the vehicle current location information and all station information requests based on the vehicle current location information. And the third-party audio platform acquires all the radio stations which can be listened to at the current position of the vehicle based on the current position information of the vehicle and all the radio station information requests based on the current position information of the vehicle, namely acquiring the radio station information of all the radio stations. The station information includes but is not limited to: radio station name information, frequency point information and radio station program information. The frequency point information includes but is not limited to: AM frequency points and/or FM frequency points. The frequency point information can also only provide AM frequency points or FM frequency points. And verifying the validity of all the radio station information, and sending all the frequency point information corresponding to the valid radio station information to the vehicle-mounted radio. Specifically, the current position of the vehicle is distinguished by city. For example: and acquiring longitude and latitude coordinates of 31 degrees and 11 minutes of north latitude and 121 degrees and 29 minutes of east longitude through a network, wherein the city where the current position of the vehicle is located is Shanghai, and the current position of the vehicle is Shanghai city. Sending all the station information of all the stations acquired in Shanghai city, namely all the station information of all the stations which can be listened to in Shanghai city, to the Himalayan platform. As shown in the all station information table for all stations that shanghai city can listen to.
Specifically, verifying the validity of all the station information is to determine whether the station information simultaneously includes: and the frequency point information at least comprises the FM frequency point or the AM frequency point. And judging whether the radio station information is definite or not. For example, the station name: ningbo □ □, station program: text □, frequency point FM is: fm99.7mhz, although containing both the station name information and the frequency point information, since the station name: ningbo □ □ and station: if the information in article □ is ambiguous, the station name is determined as: ningbo □ □, station program: text □, frequency point FM is: the station information of fm99.7mhz is invalid information.
Specifically, the system further comprises a second acquisition module, wherein the second acquisition module is used for scanning frequency bands based on the vehicle-mounted radio to acquire all frequency point information when no network signal exists.
Specifically, the frequency band scanning function of the vehicle-mounted radio is used for scanning all the preset frequency band ranges to acquire all frequency point information.
It should be noted that the division of the modules of the above system is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the x module may be a processing element that is set up separately, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the x module may be called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
In an embodiment of the present invention, the present invention further includes a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for fast channel search of any of the car radios.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the above method embodiments may be performed by hardware associated with a computer program. The aforementioned computer program may be stored in a computer readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
As shown in fig. 5, in an embodiment, the vehicle of the present invention includes a car radio 51 described in any one of the above. The vehicle-mounted radio 51 comprises a processor, a frequency modulation module, an audio playing module and a memory; the processor is used for receiving the information of all the frequency points; the frequency modulation module is connected with the processor and is used for receiving the designated frequency point information sent by the processor, receiving radio frequency modulation signals based on the designated frequency point information and converting the radio frequency modulation signals into audio signals; the audio playing module is connected with the frequency modulation module and is used for playing the audio signal sent by the frequency modulation module; the memory is used for storing a computer program; the processor is connected with the memory and is used for executing the computer program stored in the memory so as to enable the vehicle-mounted radio to execute any one of the rapid channel searching methods of the vehicle-mounted radio.
In one embodiment, the vehicle further includes a vehicle-mounted T-BOX52, where the vehicle-mounted T-BOX is configured to acquire current location information of the vehicle, acquire all frequency point information based on the current location information of the vehicle, and send all the frequency point information to the vehicle-mounted radio.
In an embodiment, the vehicle further includes a vehicle-mounted GPS53, where the vehicle-mounted GPS is configured to acquire current location information of the vehicle and send the current location information of the vehicle to the vehicle-mounted radio, and the vehicle-mounted GPS further includes a positioning antenna, and the positioning antenna is configured to receive the current location information of the vehicle sent by the positioning system.
In summary, the vehicle-mounted radio, the rapid channel searching method, the rapid channel searching system, the rapid channel searching medium and the vehicle-mounted radio facilitate the radio to rapidly acquire all frequency point information of the current position of the vehicle, and reduce the waiting time of a user. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (15)
1. A rapid channel searching method for a vehicle-mounted radio is characterized by comprising the following steps:
judging whether a network signal is connected;
acquiring the current position information of the vehicle when a network signal exists;
and acquiring all frequency point information within a receivable range of the current position of the vehicle through a network based on the current position information of the vehicle, and sending the all frequency point information to a vehicle-mounted radio of the vehicle.
2. The method for fast searching for a car radio according to claim 1, further comprising: and when no network signal exists, scanning the frequency band based on the vehicle-mounted radio to acquire all frequency point information.
3. The method for quickly searching for a channel of a car radio according to claim 1, wherein the acquiring all frequency point information within a receivable range of the current position of the vehicle through a network based on the current position information of the vehicle comprises:
sending a radio station information acquisition request to a third-party audio platform, wherein the radio station information acquisition request comprises the current position information of the vehicle;
receiving all radio station information based on the current position information of the vehicle, which is sent by the third-party audio platform;
and sending all frequency point information corresponding to all the radio station information to the vehicle-mounted radio.
4. The method for fast searching for a car radio according to claim 1, wherein the current location information of the vehicle is acquired through a network or a car GPS.
5. A quick channel searching system of a vehicle-mounted radio is characterized by comprising: the device comprises a judging module, a first obtaining module and a sending module;
the judging module is used for judging whether a network signal is connected or not;
the first acquisition module is used for acquiring the current position information of the vehicle when a network signal exists;
the sending module is used for acquiring all frequency point information within a receivable range of the current position of the vehicle through a network based on the current position information of the vehicle, and sending the all frequency point information to a vehicle-mounted radio of the vehicle.
6. The system for rapidly searching for a channel of a car radio as defined in claim 5, further comprising a second obtaining module;
and the second acquisition module is used for scanning frequency bands based on the vehicle-mounted radio when no network signal exists, and acquiring all frequency point information.
7. The system for fast searching for a car radio according to claim 5, wherein the sending module is further configured to;
sending a radio station information acquisition request to a third-party audio platform, wherein the radio station information acquisition request comprises the current position information of the vehicle;
receiving all radio station information based on the current position information of the vehicle, which is sent by the third-party audio platform;
and sending all frequency point information corresponding to all the radio station information to the vehicle-mounted radio.
8. The system of claim 5, wherein the first obtaining module is further configured to obtain the current location information of the vehicle via a network or an onboard GPS.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method for fast channel search of a car radio set according to any one of claims 1 to 4.
10. A car radio, comprising: the system comprises a processor, a network module, a frequency modulation module and an audio playing module;
the network module is connected with the processor and used for judging whether a network signal is connected;
the processor is used for acquiring the current position information of the vehicle, and acquiring all frequency point information within a receivable range of the current position of the vehicle based on the current position information of the vehicle;
the frequency modulation module is connected with the processor and is used for receiving the designated frequency point information sent by the processor, receiving radio frequency modulation signals based on the designated frequency point information and converting the radio frequency modulation signals into audio signals;
the audio playing module is connected with the frequency modulation module and is used for playing the audio signal sent by the frequency modulation module.
11. The car radio of claim 10, further comprising a navigation module;
the navigation module is connected with the processor and used for acquiring the current position information of the vehicle and sending the current position information of the vehicle to the processor.
12. The car radio of claim 10, further comprising a display module;
and the display module is connected with the processor and is used for displaying all the frequency point information and the radio station information corresponding to all the frequency point information.
13. The car radio of claim 10, further comprising an input module;
the input module is connected with the processor and used for receiving the user selection frequency point information selected by the user from all the frequency point information and sending the user selection frequency point information to the processor.
14. A car machine, characterized by comprising the car radio of any one of claims 10 to 13.
15. The vehicle machine of claim 14, further comprising: an onboard T-BOX; the vehicle-mounted T-BOX is used for acquiring the current position information of a vehicle, acquiring all frequency point information based on the current position information of the vehicle, and sending the all frequency point information to the vehicle-mounted radio.
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| CN201910968761.9A CN112653530A (en) | 2019-10-12 | 2019-10-12 | Vehicle-mounted radio, rapid channel searching method, system, medium and vehicle machine thereof |
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| CN201910968761.9A CN112653530A (en) | 2019-10-12 | 2019-10-12 | Vehicle-mounted radio, rapid channel searching method, system, medium and vehicle machine thereof |
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Address after: 201822 No.208, building 4, no.1411, Yecheng Road, Jiading Industrial Zone, Jiading District, Shanghai Applicant after: Botai vehicle networking technology (Shanghai) Co.,Ltd. Address before: 201822 No.208, building 4, no.1411, Yecheng Road, Jiading Industrial Zone, Jiading District, Shanghai Applicant before: SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING Co.,Ltd. |
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Application publication date: 20210413 |