KR19990005664A - Vehicle audio frequency automatic conversion device and method using vehicle navigation system - Google Patents

Abstract

The present invention relates to a vehicle audio frequency automatic conversion apparatus and method using a vehicle navigation apparatus, and in particular, GPS receiver 100 for receiving coordinate data and time data; A microcomputer 200 for calculating a current position of the vehicle and outputting a frequency and a tuning control signal for each region corresponding to the current position of the vehicle when the calculated current position of the vehicle and the boundary data for each region are different; A second radio tuner unit 300 which tunes a radio frequency according to a current vehicle position and receives and outputs voice data corresponding to a current vehicle frequency; An amplifier 400 for receiving and amplifying voice data; And a second speaker 500 for inputting the amplified voice data amplified by the amplification unit 400 and outputting the voice data audible to the user. The present invention is automatically adapted to a local radio frequency. Automatically converts the driver's ability to concentrate on driving while listening to radio stations, allowing the driver to continue listening to the radio station even if the area is changed, without having to manually change the radio frequency. There is an effect that can prevent safety accidents.

Description

Vehicle audio frequency automatic conversion device and method using vehicle navigation system

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a global positioning system (hereinafter referred to as GPS). In particular, the present invention detects a current position of a vehicle using a vehicle navigation system, and corresponds to a radio frequency (RADIO) for a region where the vehicle is currently located. The present invention relates to a vehicle audio frequency automatic conversion apparatus and method using a vehicle navigation apparatus capable of automatically converting the same.

As is well known, GPS orbits the earth twice a day at 20.183km, and coordinates three GPS satellites on six orbits, each of which transmits a coordinate signal for the current position and a time signal when the coordinate signal is transmitted. Dogs (24 including total satellites for each orbit) are arranged at equal intervals, and the GPS receiver can be used to detect and process the position of the GPS receiver by receiving and processing signals transmitted from the GPS satellites. The device is a device that detects the position of a person by detecting a signal transmitted from three or more GPS satellites by using a GPS receiver comprising a GPS antenna and a GPS receiver circuit. GPS satellite signal required).

As shown in FIG. 1, a conventional vehicle audio apparatus includes: a key operation unit 10 for a user to manually convert a radio frequency and output a frequency conversion signal; A control unit 20 connected to the signal output terminal of the key operation unit 10 to input a frequency conversion signal output from the key operation unit 10 to output a frequency conversion control signal and an audio control signal; Is connected to the signal output terminal of the control unit 20, converts the frequency by the frequency conversion control signal output from the control unit 20, receives a voice signal through the antenna, the voice control output from the control unit 20 A first radio tuner unit 30 for converting the received voice signal into voice data by the signal and outputting the voice data; A first speaker (SPEAKER) 40 connected to a signal output terminal of the first radio tuner unit 30 and outputting voice data output from the first radio tuner unit 30 as a voice that can be heard by a user; It is configured to include.

That is, in the operation process of the conventional car audio device, first, when the user converts the radio frequency through the key operation unit 10, the control unit 20 inputs the frequency conversion signal output from the key operation unit 10 And outputs a voice control signal for controlling the operation of converting the voice signal received through the first radio tuner unit 30 into voice data to the first radio tuner unit 30.

Meanwhile, the first radio tuner unit 30 receives a voice signal through an antenna, and converts the received voice signal into voice data by the voice control signal output from the controller 20 to convert the received voice signal into the first speaker ( 40).

In addition, the first speaker 40 inputs the voice data output from the first radio tuner unit 30 to output a voice that can be heard by the user.

However, the conventional audio device for a vehicle as described above, when the driver is listening to 89.1MHz KBS (Korea Broadcating System) radio broadcast while driving in Seoul, for example, and then moved to the Chungcheong region, the radio broadcast frequency If you can't listen to a radio station because it is different depending on the region, and you want to continue to listen to the radio station of the channel you are listening to, you have to manually change the radio frequency, so you can't concentrate on driving and be inadvertently safe. There was a problem that an accident occurred.

The present invention is to solve the above conventional problems, by using the GPS receiver to detect the current position of the vehicle, by comparing the current position of the vehicle and the boundary data for each region through the microcomputer, the current position of the vehicle and the boundary by region The present invention provides a vehicle audio frequency automatic conversion apparatus and method using a vehicle navigation system that can automatically convert to a radio frequency for a region when data is different.

In order to achieve the above object, a vehicle audio frequency automatic conversion device using the vehicle navigation apparatus of the present invention comprises a GPS antenna and a GPS receiver circuit, and a GPS receiver for receiving coordinate data and visual data of a GPS satellite transmitted from a GPS satellite. Wow; It is connected to the signal output terminal of the GPS receiver, inputs the coordinate data and the time data output from the GPS receiver, calculates the current position of the vehicle, and stores the boundary data for each region and radio frequency for each region. If the calculated current position of the vehicle is equal to the boundary data of each region, the calculated radio frequency corresponding to the current position is output and the calculated current position of the vehicle and the boundary data of each region are compared. If different, the microcomputer for outputting the frequency and tuning control signal for each region according to the current position of the vehicle; A second radio tuner unit connected to a signal output terminal of the microcomputer, for tuning a radio frequency in accordance with the current vehicle position by receiving a tuning control signal output from the microcomputer, and receiving and outputting audio data corresponding to the frequency of the current vehicle; Wow; An amplifier connected to the signal output terminal of the second radio tuner unit to receive and amplify voice data output from the second radio tuner unit; And a second speaker connected to the signal output terminal of the amplifying unit and inputting audio data amplified by the amplifying unit to output a voice that can be heard by the user.

1 is a functional block diagram showing the configuration of a conventional vehicle audio device;

2 is a functional block diagram showing the configuration of an automatic vehicle audio frequency conversion apparatus using a vehicle navigation apparatus according to an embodiment of the present invention;

3 is a control flowchart illustrating a control method of a vehicle audio frequency automatic converting apparatus using the vehicle navigation apparatus according to FIG. 2;

4 is a regional distribution chart that defines boundaries of regions.

Explanation of symbols for the main parts of the drawings

10: key control unit 20: control unit

30: first radio tuner unit 40: first speaker

100: GPS receiver 200: microcomputer

300: second radio tuner unit 400: amplification unit

500: second speaker

Hereinafter, the above-described contents will be described in detail through an embodiment according to the present invention.

As shown in FIG. 2, the GPS receiver 100 receives coordinate data and time data of a GPS satellite transmitted from a GPS satellite, outputs the coordinate data to the micom 200, and the micom 200 Input the coordinate data and time data output from the GPS receiver 100, calculate the current position of the vehicle, store the boundary data for each region and the radio frequency for each region, and calculate the calculated current position and By comparing the boundary data of each region, if the calculated current position of the vehicle and the boundary data of each region are the same, the radio frequency corresponding to the current position is output.If the calculated current position of the vehicle and the boundary data of each region are different, the current of the vehicle The region-specific frequency and the tuning control signal corresponding to the position are output to the second radio tuner unit 300, and the second radio tuner unit 300 is output from the microcomputer 200. Inputs a tuned control signal, and tunes a radio frequency according to a current vehicle position, receives voice data corresponding to a current vehicle frequency, and outputs the received audio data to the amplifying unit 400. 2 After receiving and amplifying the voice data output from the radio tuner unit 300, the second speaker 500 outputs the amplified voice data amplified by the amplifier 400. The present embodiment is constructed by inputting and outputting with a voice that a user can hear.

Hereinafter, an operation process of the vehicle audio frequency automatic conversion apparatus using the vehicle navigation apparatus configured as described above will be described with reference to FIGS. 3 and 4.

First, the GPS receiver 100 receives coordinate data and time data of a GPS satellite transmitted from a GPS satellite, outputs the received coordinate data and time data to the microcomputer 200, and the microcomputer 200 The coordinate data and the time data output from the GPS receiver 100 are input to calculate a current position of the vehicle (S1).

In addition, the microcomputer 200 stores boundary data for each region and radio frequency for each region, and compares the current position of the vehicle detected by the GPS receiver 100 with boundary data for each region, and calculates the result. If the current location of the vehicle and the boundary data of each region are the same, the radio frequency corresponding to the current location is continuously output (S2).

On the other hand, the microcomputer 200 when the current position of the vehicle detected using the GPS receiver 100 and the boundary data for each region is different, for example, as shown in FIG. If the vehicle moves while listening to the D region, the receiver searches for a frequency that can be received in the D region (S3).

In addition, the microcomputer 200 detects a frequency that can be received in the region D and sets a frequency that can be received in the region D (S4).

On the other hand, the microcomputer 200 outputs a tuning control signal to the second radio tuner unit 300 to switch to a frequency suitable for the region D, the second radio tuner unit 300 is the microcomputer 200 The frequency is switched by the tuning control signal output from the second radio tuner unit 300, and receives the audio data transmitted from the radio station and outputs the amplification unit 400 (S5).

In addition, the amplifying unit 300 receives and amplifies the voice data output from the second radio tuner unit 300, and then outputs the amplified sound to the second speaker 500. The amplified unit 400 inputs the amplified voice data and outputs the voice data that can be heard by the user.

As described above, the apparatus and method for automatically converting a vehicle audio frequency using the vehicle navigation apparatus according to the present invention detects a current position of a vehicle using a GPS receiver and compares the current position of the vehicle with boundary data by region through a microcomputer. If the vehicle's current location and regional boundary data are different, it automatically converts the radio frequency to the region, so that when the driver is driving while listening to the radio broadcast, he / she can continuously listen to the radio broadcast even if the region changes. In addition, since the driver does not have to change the radio frequency manually, it is possible to concentrate only on driving, thereby preventing safety accidents.

Claims (2)

A GPS receiver comprising a GPS antenna and a GPS receiver circuit for receiving coordinate data and visual data of the GPS satellites transmitted from the GPS satellites; It is connected to the signal output terminal of the GPS receiver, inputs coordinate data and time data output from the GPS receiver, calculates the current position of the vehicle, and stores the boundary data for each region and the radio frequency for each region. If the calculated current position of the vehicle is equal to the boundary data of each region, the calculated radio frequency corresponding to the current position is outputted and the calculated current position of the vehicle and the boundary data of each region are compared. If different, the microcomputer for outputting the frequency and the tuning control signal for each region corresponding to the current position of the vehicle; A second radio tuner unit connected to a signal output terminal of the microcomputer, for tuning a radio frequency in accordance with the current vehicle position by receiving a tuning control signal output from the microcomputer, and receiving and outputting audio data corresponding to the frequency of the current vehicle; Wow; An amplifier connected to the signal output terminal of the second radio tuner unit to receive and amplify voice data output from the second radio tuner unit; And a second speaker connected to the signal output terminal of the amplifying unit and configured to input voice data amplified by the amplifying unit and output the voice data audible to the user. Inverter. A detection step S1 of detecting a current position of the vehicle; A comparison step (S2) of comparing the current position of the vehicle with the boundary data for each region after the detecting step (S1) and performing the detection step (S1) when the current position of the vehicle and the region-specific boundary data are the same; A search step (S3) of searching for a frequency receivable in a region where the current vehicle is located when the current position of the vehicle and the boundary data for each region are different after the comparing step (S2); A frequency setting step (S4) of setting a frequency corresponding to an area in which the vehicle is currently located after the searching step (S3); After the frequency setting step (S4), the vehicle audio frequency automatic conversion method using a vehicle navigation system characterized in that it comprises a frequency conversion step (S5) for switching the frequency.