KR20070121108A - Navigation device - Google Patents

Abstract

A navigation device is provided to increase the amount of volume and to regenerate a sound source of high quality by installing a folding type speaker instead of a mount speaker. A navigation body(100) is formed to perform a navigation function. A folding type speaker(110) is attached to both sides of the navigation body in order to output sound regenerated by the navigation body. A folding type center speaker is attached to an upper end of the navigation body. A folding type rear speaker is attached to a lower end of the navigation body. The navigation body includes a GPS part for producing present location information on the basis of a signal received from a GPS satellite, a storage unit for storing the data, a display part for displaying a present location on a map, a key pad part for converting a key input to an electrical signal, and a control part for matching the present location information with map data to output the matched data to the display part.

Description

Navigation device {NAVIGATION DEVICE}

1 is a block diagram showing a navigation apparatus according to the prior art.

Figure 2 is a schematic diagram showing the appearance of a navigation device according to the prior art.

3 is a schematic view showing a navigation device according to the present invention;

The present invention relates to a navigation apparatus, and more particularly, to a navigation apparatus that provides a high volume sound and reproduces a high-quality sound source as well as a beautiful appearance by installing a foldable speaker.

1 is a block diagram illustrating a navigation apparatus according to the prior art.

Referring to FIG. 1, a navigation apparatus according to the related art includes an input / output device 1 for inputting and outputting information regarding route guidance, a current position detection apparatus 2 for detecting information about a current position of a vehicle, and a navigation required for calculating a route. Information storage device 3, which stores data for use and information for display guidance required for guidance, and a central processing unit 4 for controlling the entire system while performing route search processing and display guidance processing necessary for route guidance. do.

The input / output device 1 instructs the central processing unit 4 to process the navigation process according to the driver's intention so that the driver can input the destination or output the guidance information by voice / screen when necessary. It has a function to print and print out the data.

As a means for realizing the function, the input unit has a touch switch 11 and an operation switch for inputting a destination by a telephone number and coordinates on a map, or requesting a route guidance. Of course, an input device such as a remote control may be used. In addition, the output unit displays the input data or displays the route guidance on the screen automatically according to the driver request (12). And a printer 13 for printing out the data processed by the central processing unit 4 and the data stored in the information storage device 3, and a speaker 16 for outputting the route guidance by voice.

Here, a voice recognition device for enabling voice input and a recording card reading device for reading data recorded on the IC card and the magnetic card can be added. It also accumulates data necessary for navigation, and exchanges data between an information center provided through a communication line at the driver's request and an information source such as an electronic notebook that stores driver-specific data such as map data and destination data in advance. It is also possible to add a data communication device for executing.

The display 12 is composed of a color CRT and a color liquid crystal display, and includes a route setting screen, an interval diagram screen, and an intersection point plot based on map data and guide data processed by the central processing unit 4. All the screens required for navigation, such as screens, are displayed in color, and at the same time, buttons for performing guidance during the guidance setting, route guidance, and screen changing operation are displayed on this screen. In particular, passing intersection information such as passing intersection name is often displayed in color on a section diagram screen as a pop-up.

This display 12 is installed in the instrument panel near the driver's seat, and the driver can check the current position of the vehicle by viewing the sectional view and also obtain information about the future route. Can be. In addition, the display 12 is provided with a touch switch 11 corresponding to the display of the function button, and is configured to execute the above operation based on a signal input by touching the button. The input signal generating means composed of the button and the touch switch constitutes an input portion, but the detailed description thereof is omitted here.

The current position detection device 2 is a GPS receiver 21 using a satellite navigation system (GPS), a beacon receiver 21, such as a cellular phone (cellular phone) and GPS correction using an FM multiple signal The data transmission / reception device 23 for receiving a signal, an absolute orientation sensor 24 composed of a geomagnetic sensor, etc., a wheel sensor, a string sensor, a relative sensor 25 composed of a gyro, etc. The distance sensor 26 which detects a travel distance from rotation speed is provided.

The information storage device 3 is an external storage device storing a navigation program and data, for example, a CD-ROM. The program consists of a map drawing unit, a route search unit, a route guide unit, a current position calculation unit, a destination setting operation control unit, and a navigation unit and an OS unit which perform navigation signal output processing. A program for executing a program and a display output control for route guidance, a program for executing a voice output control for route guidance and data necessary for the guidance, and display information data for route guidance and map display are stored. In addition, the data includes map data (road map, house map, building shape map, etc.), intersection data, node data, road data, photo data, registration point data, destination point data, guide road data, detailed destination data necessary for route guidance. All data necessary for the navigation device are stored, consisting of destination read data, phone number data, address data, and other data files.

The central processing unit 4 checks programs of the flash memory 41 and the flash memory 41 that read and store programs from a CD-ROM of the CPU 40 and the information storage device 3 that perform various arithmetic processing. A ROM 42 containing a program (program reading means) for performing the update process, a point coordinate of the set destination, and a road name code no. RAM 43 for temporarily storing retrieved route guidance information and data during arithmetic processing, image memory 44 for storing image data for display on a display, and CPU 40 to display output control signals. Based on the image processor 45 which extracts the image data from the image memory 44 and outputs it to a display for performing image processing, the audio and phrase read out from the information storage device 3 on the basis of the audio output control signal from the CPU. speech processor 46 which synthesizes phrases, sentences, sounds, etc., converts them into analog signals and outputs them to the speaker 16, a communication interface 47 for exchanging input / output data by communication, and the current position. A sensor input interface 48 for receiving a sensor signal of the detection device 2 and a clock 49 for entering a date and time in internal diag information are provided. In the central processing unit 4, when the data acquired by each sensor of the current position detection device 2 is received from the sensor input interface 48, the CPU 40 will perform a predetermined time based on the data. The current position coordinates are calculated and written to the RAM 42 temporarily. This current position coordinate takes into account the detection error of various data and performs a map match process. In addition, the output value by various sensors is always correct | amended. Here, the route guidance is configured so that the driver can select either the screen display or the audio output.

Figure 2 is a schematic diagram showing the appearance of a navigation device according to the prior art.

Referring to FIG. 2, the navigation device 10 includes a main body 10 and a built-in speaker 20.

The built-in speaker 20 is attached to the back of the navigation body 10 to output the driving guidance voice and the like.

Recently, various digital media files, for example, a video or an MP3, can be played in the navigation device. The built-in speaker 20 attached to the navigation device according to the related art is attached to the rear of the main body so that the sound is small. There is a limit to increase the volume due to its small size, and there is a problem in that it is not suitable for playing a video or MP3, in particular, because the sound quality is not good.

In order to solve the above problems, an object of the present invention is to provide a navigation device that is not only beautiful in appearance by installing a foldable speaker, but also can produce a high volume and reproduce a high-quality sound source compared to the built-in speaker.

In order to achieve the above object, a navigation device according to the present invention comprises a navigation body for performing a navigation function; And a foldable speaker attached to both sides of the navigation body and outputting a sound reproduced by the navigation body.

The navigation apparatus according to the present invention may further include a foldable center speaker attached to the top of the navigation body and a foldable rear speaker attached to the bottom of the navigation body.

Here, the navigation body includes a GPS unit for calculating current location information based on a signal received from a GPS satellite; A storage unit for storing map data; A display unit displaying a current location on a map; A keypad unit for converting a user's key input into an electrical signal; And a controller which matches the current location information calculated by the GPS unit with the map data and displays the same through the display unit.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

3 is a schematic view showing a navigation apparatus according to the present invention.

Referring to FIG. 3, the navigation device according to the present invention includes a navigation body 100 and a foldable speaker 110.

Although not shown, the navigation body 100 includes a control unit, a display unit, a GPS unit, a keypad unit, a storage unit, an external connection unit, and the like therein. The controller performs overall control of the navigation device. In particular, the controller determines a current position based on the position information received from the GPS unit, matches the map, and outputs the same through the display unit.

The display unit includes a display device such as an LCD and performs a function of displaying various kinds of information.

The GPS unit calculates current coordinates based on a signal received from a GPS satellite and transmits the current coordinates to the controller.

The keypad unit converts a user's key input into an electrical signal and transmits it to the controller.

The storage unit stores various data such as map data and user data, and includes a flash memory and a hard disk.

The external connection unit functions to connect the external device with the control unit. In other words, when an external device is inserted, the external device is connected to the controller.

On both sides of the navigation body 100 composed of the above-described components, a foldable speaker 110 for outputting sound (for example, voice guidance and MP3 file playback) reproduced by the navigation body 100 is attached.

In the figure, only the case in which the foldable speaker 110 is attached only to both sides of the navigation body 100 is shown, but if necessary, the foldable center speaker may be attached to the top of the navigation body 100, and the navigation body 100 may be attached. At the bottom of the), a foldable rear speaker can be attached to implement 5.1 channels.

The navigation device according to the present invention is not only beautiful in appearance by installing a foldable speaker, it can produce a large volume compared to the built-in speaker and has the effect of reproducing a high-quality sound source.

In particular, when the user is equipped with a navigation device in the vehicle, it is easy to carry because the speaker can be extended and folded when carrying. In addition, 5.1 channels can be implemented by adding a plurality of speakers at the top and bottom, and various designs of the speaker are possible, which is beautiful in appearance.

Even when the navigation device is utilized as a DMB device or a portable media player (PMP) device, which has recently been in the spotlight, superior sound can be provided as compared with the prior art.

Claims (3)

A navigation body performing a navigation function; And Foldable speakers attached to both sides of the navigation body and outputs the sound reproduced by the navigation body Navigation device comprising a. The method of claim 1, The apparatus further comprises a foldable center speaker attached to the top of the navigation body and a foldable rear speaker attached to the bottom of the navigation body. The method of claim 1, The navigation body A GPS unit for calculating current location information based on a signal received from a GPS satellite; A storage unit for storing map data; A display unit displaying a current location on a map; A keypad unit for converting a user's key input into an electrical signal; And A controller which matches the current location information calculated by the GPS unit with the map data and displays the same through the display unit; Navigation device comprising a.

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