TWI425773B - System and method for smart converting of a frequency modulation radio - Google Patents

Description

FM broadcast intelligent conversion system and method

The invention relates to an FM broadcast intelligent conversion system and method.

Frequency modulation radio is one of the sources of information collected by people. FM radios have an FM receiver that receives broadcast signals from various broadcast stations. A phenomenon inherent in FM receivers is called capture, that is, the FM receiver can clearly receive the stronger of the two radio stations of the same frequency. Therefore, in general, FM radios are used to listen to broadcasts at a fixed location, and signal interference is rare.

However, since the same broadcast station has different transmission powers in different regions. This results in the frequency at which an FM radio can receive a station may be different when the location of the user using the FM radio is changed. This is especially the case when the FM radio is an on-board FM radio. For example, when the car is located in Shenzhen, the FM radio in the car is listening to the broadcast signal of the A radio station, but the broadcast signal of the A radio station received by the FM radio may become more and more blurred when the car is driving to Guangzhou. It is even possible to switch to the broadcast signal of the B radio station. This is very inconvenient for the user, especially for the user of the car FM radio, and the user needs to constantly adjust the frequency of the received station of the FM radio to obtain a stable radio signal.

In view of the above, it is necessary to provide an FM radio intelligent conversion system and method, which can automatically convert the receiving frequency of a broadcasting station obtained by an FM radio, and ensure that the FM radio receives a stable broadcast station signal.

An FM broadcast smart conversion system running on an FM radio, the FM radio includes an FM receiver, and the FM broadcast smart conversion system includes: a creation module for creating a broadcast frequency database, the broadcast The frequency database includes the regional radio frequency corresponding to each radio station in different regions; the receiving module is configured to receive, by the FM receiver, the broadcast station currently listening to the FM radio and obtain the corresponding current radio frequency; and acquire the module. The current position of the FM radio is obtained through a Global Positioning System (GPS) connected to the FM radio, and the area of the FM radio is determined according to different regions in the broadcast frequency database; a group, configured to read, from a broadcast frequency database, a regional radio frequency corresponding to a currently broadcasted radio station in the area to which the region is located; and a determining module, configured to determine whether the frequency of the read regional radio station is received by the receiving module The current radio frequency is the same; and the conversion module is used when Radio frequency region with the current reading of the received radio frequency is not the same, the current radio frequency conversion of the FM radio to the radio frequency region.

An FM broadcast smart conversion method, the method comprising the steps of: providing an FM radio, the FM radio includes an FM receiver; creating a broadcast frequency database, the broadcast frequency database including each radio station in different regions Corresponding regional radio frequency; receiving the radio station currently listening to the FM radio through the FM receiver and obtaining its corresponding Current radio frequency; obtain the current location of the FM radio via a global positioning system connected to the FM radio, and determine the region to which the FM radio belongs according to different regions in the broadcast frequency database; read from the broadcast frequency database The frequency of the regional station to which the currently listening broadcast station corresponds in the region; determining whether the frequency of the regional radio station being read is the same as the frequency of the current station received; and when the frequency of the regional radio station being read and the current station received When the frequencies are different, the current station frequency of the FM radio is converted to the regional radio frequency.

Compared with the prior art, the FM broadcast smart conversion system and method utilizes a global positioning system to automatically convert the receiving frequency of a broadcast station obtained by an FM radio, and ensure that the FM radio receives a stable broadcast station signal.

As shown in FIG. 1 , it is an application environment architecture diagram of a preferred embodiment of the FM broadcast smart conversion system of the present invention. The FM broadcast smart conversion system 11 is installed and operated in the FM radio 1 as described. The FM radio 1 further includes an FM receiver 12 for receiving a broadcast signal from each broadcast station. In the preferred embodiment, the FM radio 1 is an in-vehicle broadcast receiving system; in other embodiments, the FM radio 1 can also be other types of broadcast receiving systems.

The FM radio 1 is also connected to a GPS system 2 for obtaining the current location of the FM radio 1 . The GPS system 2 includes a GPS signal receiver 21 and an electronic map 22. The GPS system 2 receives the GPS satellite signal through the GPS signal receiver 21 therein to obtain an FM radio. The current location of 1 and the specific location point is determined based on the electronic map 22.

The idea of the invention is to obtain the region to which the FM radio 1 belongs by using the GPS system 2, and adjust the current radio frequency of the FM radio 1 according to the frequency of the corresponding regional radio station of the specific broadcast station in the region to ensure the FM radio 1 A stable signal for that particular broadcast can always be received.

The FM broadcast smart conversion system 11 includes a creation module 111, a receiving module 112, an acquisition module 113, a reading module 114, a determination module 115, and a conversion module 116.

The creating module 111 is configured to create a broadcast frequency database, where the broadcast frequency database includes regional radio frequencies corresponding to different broadcast stations in different regions. For example, as shown in FIG. 2, it is a schematic diagram of a broadcast frequency database. Among them, the frequency of A radio station in Shenzhen is 95.1MHz, the frequency of A radio station in Guangzhou is 97.8MHz, the frequency of A radio station in Shanghai is 101.3MHz, and the frequency of B radio station in Shenzhen is 89. MHz, B radio station. The frequency in Guangzhou is 93.5MHz, the frequency of B radio station in Shanghai is 99.8MHz; the frequency of C radio station in Shenzhen is 93.4MHz, the frequency of C radio station in Guangzhou is 96.1MHz, and the frequency of C radio station in Shanghai is 100.6. MHz.

The receiving module 112 is configured to receive, by the FM receiver 12, the broadcast station currently being listened to by the FM radio 1 and obtain the corresponding current station frequency. For example, when the FM radio 1 is currently in Shenzhen, it is currently listening to the A radio station, and the current station frequency is 95.1 MHz.

The obtaining module 113 is configured to obtain, by using the GPS system 2, the current location of the FM radio 1 and according to the broadcast frequency database. The area where the FM radio 1 belongs is determined in the same area. For example, when the current position of the FM radio 1 acquired through the GPS system 2 becomes the Guangzhou section of the Guangzhou-Shenzhen Expressway, according to the division of the area in the broadcast frequency database, the area to which it belongs is Guangzhou.

The reading module 114 is configured to read, from the broadcast frequency database, the frequency of the regional station corresponding to the currently listening broadcast station in the region to which it belongs. For example, it can be known from the broadcast frequency database that the frequency of the regional radio station of the A radio station in Guangzhou is 97.8 MHz.

The determining module 115 is configured to determine whether the read regional radio frequency is the same as the current radio frequency received by the receiving module 112.

The conversion module 116 is configured to convert the current station frequency of the FM radio 1 to the regional station frequency when the read regional radio frequency is different from the current radio frequency received by the receiving module 112. To ensure that the FM radio 1 can receive a stable signal for that particular broadcast. For example, the determination module 115 can determine that the regional radio frequency of the A broadcast station is 97.8 MHz, and the current radio frequency received by the receiving module 112 is 95.1 MHz. The conversion module 116 converts the current radio frequency of the FM radio 1 into 97.8MHz.

As shown in FIG. 3, it is a flowchart of a preferred embodiment of the FM broadcast smart conversion method of the present invention. First, in step S11, the creation module 111 creates a broadcast frequency database, and the broadcast frequency database includes regional radio frequencies corresponding to different broadcast stations in different regions.

In step S12, the receiving module 112 receives the currently listening broadcast station through the FM receiver 12 and obtains its corresponding current station frequency.

In step S13, the acquisition module 113 acquires the current location of the FM radio 1 through the GPS system 2, and determines the region to which the FM radio 1 belongs according to different regions in the broadcast frequency database.

In step S14, the reading module 114 reads, from the broadcast frequency database, the frequency of the regional station corresponding to the currently listening broadcast station in the area to which it belongs.

In step S15, the determining module 115 determines whether the frequency of the read regional station is the same as the frequency of the current station received by the receiving module 112.

Step S16, when the read regional radio frequency is different from the current radio frequency received by the receiving module 112, the conversion module 116 converts the current radio frequency of the FM radio 1 to the regional radio frequency to ensure frequency modulation. The broadcast radio 1 can receive a stable signal of the specific broadcast.

In step S15, when the read regional station frequency is the same as the current station frequency received by the receiving module 112, the process returns to step S13 to reacquire the current position of the FM radio 1 .

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting, and the present invention will be described in detail with reference to the preferred embodiments of the present invention. Neither should the spirit and scope of the technical solutions of the present invention be deviated.

FM Radio Radio ‧‧1

FM Broadcasting Wisdom Conversion System ‧‧11

FM Receiver ‧‧12

GPS system ‧‧2

GPS signal receiver ‧‧21

Electronic map ‧ ‧ 22

Create a module ‧‧‧111

Receiving module ‧‧‧112

Get the module ‧ ‧ 113

Reading module ‧‧‧114

Judgment module ‧‧‧115

Conversion module ‧‧116

Create a broadcast frequency database that includes the regional radio frequencies corresponding to the radio stations in different regions. ‧‧S11

Receiving the currently listening radio station through the FM receiver and obtaining its corresponding current station frequency ‧‧‧S12

Obtain the current location of the FM radio via the GPS system and its area ‧‧S13

Reading the frequency of the regional radio station corresponding to the radio station currently listening to in the region from the broadcast frequency database ‧‧S14

Determining whether the regional station frequency is related to the received current station frequency With ‧‧S15

Convert the current station frequency to the above regional station frequency ‧‧‧S16

1 is a diagram of an application environment architecture of a preferred embodiment of an FM broadcast smart conversion system of the present invention.

2 is a schematic diagram of a broadcast frequency database of the present invention.

3 is a flow chart of a preferred embodiment of the FM broadcast smart conversion method of the present invention Cheng Tu.

Create a broadcast frequency database that includes the regional radio frequencies corresponding to the radio stations in different regions. ‧‧S11

Receiving the currently listening radio station through the FM receiver and obtaining its corresponding current station frequency ‧‧‧S12

Obtain the current location of the FM radio via the GPS system and its area ‧‧S13

Reading the frequency of the regional radio station corresponding to the radio station currently listening to in the region from the broadcast frequency database ‧‧S14

Determine if the frequency of the station in the area is the same as the frequency of the current station received. ‧‧‧S15

Convert the current station frequency to the above regional station frequency ‧‧‧S16

Claims (9)

An FM broadcast smart conversion system running on an FM radio, the FM radio includes an FM receiver, and the FM broadcast smart conversion system includes: a creation module for creating a broadcast frequency database, the broadcast The frequency database includes the regional radio frequency corresponding to each radio station in different regions; the receiving module is configured to receive, by the FM receiver, the broadcast station currently listening to the FM radio and obtain the corresponding current radio frequency; and acquire the module. For obtaining a current location of the FM radio via a GPS system connected to the FM radio, and determining an area of the FM radio according to different regions in the broadcast frequency database; and reading a module for using the broadcast frequency data The library reads the frequency of the regional station corresponding to the currently broadcasted radio station in the area to which it belongs; the determining module is configured to determine whether the frequency of the read regional radio station is the same as the current station frequency received by the receiving module; Module for the frequency of the regional radio station being read and received Radio frequency current is not the same, the current radio frequency conversion of the FM radio to the radio frequency region. The FM broadcast smart conversion system according to claim 1, wherein the GPS system comprises a GPS signal receiver and an electronic map. The FM broadcast smart conversion system according to claim 2, wherein the GPS system receives the GPS satellite signal through the GPS signal receiver therein to obtain the current position of the FM radio, and determines the specific according to the electronic map. The location point. The FM broadcast smart conversion system according to claim 1, wherein the FM radio is an in-vehicle broadcast receiving system. An FM broadcast smart conversion method, the method comprising the steps of: providing an FM radio, the FM radio includes an FM receiver; and creating a broadcast frequency database, wherein the broadcast frequency database includes radio stations corresponding to different regions. The regional radio frequency; receiving, by the FM receiver, the broadcast station currently listening to the FM radio and obtaining the corresponding current radio frequency; obtaining the current position of the FM radio via the GPS system connected to the FM radio, and according to the broadcast Different regions in the frequency database determine the region to which the FM radio belongs; read the frequency of the regional radio station corresponding to the currently listening radio station in the region from the broadcast frequency database; determine whether the frequency of the regional radio station read is The received current station frequency is the same; and when the read regional station frequency is different from the received current station frequency, the current station frequency of the FM radio is converted to the regional station frequency. The FM broadcast smart conversion method according to claim 5, wherein when the read regional radio frequency is the same as the received current radio frequency, returning to the GPS system connected to the FM radio to obtain the The current location of the FM radio is determined, and the steps of the region to which the FM radio belongs are determined based on the different regions in the broadcast frequency database. The method for converting an FM broadcast smart as described in claim 5, wherein the GPS system comprises a GPS signal receiver and an electronic map. The method for transforming the FM broadcast smart as described in claim 7, wherein the GPS system receives the GPS satellite signal through the GPS signal receiver therein to obtain the current position of the FM radio, and determines the specific according to the electronic map. The location point. The FM broadcast smart conversion method according to claim 5, wherein the FM radio is an in-vehicle broadcast receiving system.