KR20050008188A - Vehicle navigation device acting with car-speed - Google Patents

Abstract

PURPOSE: A navigation device interlocking to vehicle speed is provided to improve the transmittance of the information by transmitting the voice for guiding the position information to the driver with maintaining a predetermined level as the driving speed increases. CONSTITUTION: A navigation device interlocking to vehicle speed includes a navigation device(200), a driving speed detection sensor(100) and a micro-computer(300). The navigation device is provided with a voice guide function to output the path information as a voice through the speaker installed the inside of the vehicle. The driving speed detection sensor detects the driving speed of the vehicle. And, the micro-computer controls the speaker volume level outputting the guide voice of the navigation device in response to the speed value sensed at the speed detection sensor.

Description

Vehicle navigation device acting with car-speed}

The present invention relates to a vehicle speed-linked navigation device, and in particular, due to the noise generated when the vehicle travels over a certain speed, the guide voice output from the navigation device provided in the vehicle is relatively low so that accurate route information can be transmitted. The present invention relates to a vehicle-speed linked navigation device in which the guidance sound volume level of the navigation device is adjusted in association with the vehicle speed in order to prevent the phenomenon.

In order to look at a conventional vehicle-linked navigation apparatus, referring to Figures 1 and 2 as follows. FIG. 1 is a diagram illustrating an interior space of a typical vehicle, and FIG. 2 is an enlarged view of a navigation device mounted on a vehicle.

Navigation system (Navigation System) is a device that shows the route to reach a specific place, such as destinations, important appointments, etc., the situation is mounted mainly in large luxury cars in Korea.

Most navigation devices use GPS (GPS.Global Positioning System) satellites to locate the exact location of the car, while the car's internal location database and mapping software use information from satellites to monitor the car's interior. The map displayed on (M) gives the driver directions. The software includes a database of locations such as gas stations, ATMs, government offices, hotels, restaurants, and hospitals, and several CDs are available for storing such huge information.

If the traffic route provided by the vehicle navigation device is only displayed visually, it may distract the driver's attention to fix the gaze in front of the vehicle, which may cause an accident, and may only cause the accident for a short time when stopped by a signal. Since the path displayed on the navigation device can be checked, its use is inconvenient.

Accordingly, a recent vehicle navigation device is provided with a voice guidance function for guiding a voice to notify the driver of a current vehicle progress and a series of routes until reaching the destination set by the driver, wherein the guide voice is car audio. It is output through the speaker S provided in the apparatus A.

However, due to the noise generated as the driving speed of the vehicle increases, it is impossible to properly listen to the voice guidance provided by the navigation device, and thus it is inefficient to obtain desired location information, and the driver adjusts the volume of the car audio (A). It is inconvenient because the button must be operated manually.

In addition, the upper body of the driver and the gaze of the driver can only be lowered to the lower right side of the volume control button of the car audio A, thereby lowering the driver's concentration and increasing the risk of an accident.

The present invention has been made to solve the above problems of the prior art, the object of which is generated in accordance with the driving speed in the vehicle navigation apparatus for outputting the route information of the destination as a guide voice through the speaker provided in the vehicle, It is to provide a vehicle speed linked navigation device that automatically controls the volume level according to the vehicle speed so that the guide voice is normally delivered to the driver in preparation for the noise.

1 is a view showing the interior space of a typical vehicle;

2 is an enlarged view of a navigation device mounted on a vehicle;

3 is a block diagram of a vehicle speed linked navigation device according to the present invention;

4 is an operation flowchart of a vehicle speed linked navigation apparatus of the present invention.

<Explanation of symbols on main parts of the drawings>

S: Speaker 100: Vehicle speed sensor

200: navigation device 210: volume level setting unit

300: microcomputer 310: vehicle speed comparison

320: volume level adjustment unit

According to a feature of the car audio device capable of individual listening for each medium according to the present invention for solving the above problems, a navigation device with a voice guidance function that outputs the route information as a voice through the speaker in the vehicle, and detects the vehicle speed And a micom for controlling a speaker volume level at which the guide voice of the navigation device is output according to the vehicle speed sensor and the speed value detected by the vehicle speed sensor.

A first step of initially setting a volume level of the guide voice output by the navigation device, a second step of detecting a vehicle speed of a driving vehicle, and a third step of comparing the vehicle speed detected in the second step with a preset reference value And a fourth step of, if the vehicle speed exceeds the reference value, adjusts the volume level set in the first step upward, and if the vehicle speed is less than the reference value, returns to the volume level set in the first step. And a fifth step of outputting the guide voice of the navigation device at the volume level adjusted in the fourth step.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 3 is a block diagram illustrating a structure of a vehicle-linked navigation apparatus according to the present invention, and FIG. 4 is a flowchart illustrating an operation method of the vehicle-linked navigation apparatus according to the present invention.

First, the navigation device 200 used in the present invention may not only display the location information through the monitor, but also convert the location information into a voice to output the guide voice. In this case, the guide voice is output through a speaker included in a car audio device, and the car audio may be divided into a head unit including a tuner, a cassette deck, and an amplifier for generating a sound source, and a speaker for outputting the sound source. (S) is divided into front speaker, rear speaker and subwoofer according to the mounted position.

Through such a car audio device, drivers and passengers can listen to music and radio broadcast while driving, and recently, an option such as a car TV, a DVD player and a CD player can be installed, and the voice guidance function of the present invention is implemented. As the navigation device 200 is mounted, a guide voice may be output in association with the speaker S of the car audio device.

The navigation device 200 is a state-of-the-art information device that displays road information received from a satellite on a monitor through a location tracking system (GPS), and a driver can operate the current location, geographic information on a destination, and the shortest distance to a desired location with a simple operation. You can get distance information.

Vehicle speed sensor 100 for detecting the vehicle speed is attached to the vehicle, and outputs the current vehicle speed value to the microcomputer (300).

The microcomputer 300 receives a bar detected by various sensors mounted on the vehicle and analyzes and judges it according to a built-in control algorithm to control each detailed device constituting the vehicle, and the microcomputer 300 of the present invention. ) Controls the volume level of the speaker S to which the guide voice of the navigation device 200 is output according to the speed value detected by the vehicle speed sensor 100.

The reason for this is that when the vehicle is traveling at high speed, noise such as high speed engine sound, noise generated when the vehicle body is rubbed with the air, and friction sound of the car tire are increased proportionally, and the output is relatively through the speaker S. The volume of the guide voice of the navigation device 200 is weakly heard by external noise, so that the location information is not properly transmitted to the driver.

The navigation device 200 of the present invention includes a volume level setting unit 210 that can initially set a volume of a specific level to suit the user's hearing. As a result, the driver selects a specific level among the multilevel sound levels and guides the voice. You can set the usual volume level.

In the embodiment of the present invention, the total volume level is seven, and the driver may specify any one of the seven levels to be initially set. The bar set to level 2 will be described with reference to Table 1 as an example.

Initial setting level One 2 3 4 5 6 7 Upward adjustment +3 +3 +3 +3 +3 +3 +3 Output volume level 4 5 6 7 8 9 10

The microcomputer 300 compares whether the vehicle speed detected by the vehicle speed sensor 100 exceeds a reference value, and the comparison result of the vehicle speed comparison unit, and the volume level if the current vehicle speed exceeds the reference value. And a volume level adjusting unit 320 for adjusting the volume level (level 2) set by the setting unit 210 upward. Here, the reference value is a speed value of 80 Km / h is a value that is determined to be inconvenient for listening to the guide voice due to excessive noise, which can be changed and set by the producer.

Therefore, the volume level adjusting unit 320 is adjusted upward by 3 levels so that the output volume level is 5 so that the guide voice is properly delivered in response to noise.

In addition, when the vehicle speed detected by the vehicle speed sensor 100 decreases below the reference value as the vehicle decelerates, the volume level adjusting unit 320 may set the volume level (level 2) set by the volume level setting unit 210. Return to.

The navigation device configured as described above is operated as shown in FIG. 4.

First, the driver initially sets the volume level of the guide voice output by the navigation device of the guide voice output by the navigation device. (S1)

The vehicle speed of the vehicle being driven is detected by the vehicle speed sensor S2, and the speed value of the vehicle is output to the microcomputer.

The microcomputer compares the detected vehicle speed with a reference value preset by the producer (S3). If the vehicle speed exceeds the reference value as a result of the comparison, the micom adjusts the volume level set in the first step (S4), and the vehicle speed is less than the reference value. If the vehicle is decelerated (ie, the vehicle is decelerated), the controller returns to the volume level set in the first step (S5).

The guide voice of the navigation device is output (S6) at the volume level adjusted by the microcomputer, so that the driver can comfortably listen to the location information.

In the vehicle speed interlocked navigation device of the present invention configured as described above, the vehicle navigation device outputs the route information of the destination as a guide voice through a speaker provided in the vehicle, and the voice for guiding the location information increases as the driving speed increases. It can be transmitted to the driver at a certain level in preparation for the noise generated by the vehicle to improve the information transmission power, and the volume control is automatically performed to help the driver's convenience and contribute to safe driving because it does not distract the driver's attention. There is.

Claims (5)

A navigation device implementing a voice guidance function for outputting route information as a voice through a speaker in a vehicle; A vehicle speed sensor for detecting a vehicle speed; And a microcomputer for controlling the speaker volume level at which the guide voice of the navigation device is output according to the speed value detected by the vehicle speed detecting sensor. The method of claim 1, And the navigation device includes a volume level setting unit for initially setting the volume level of the guide voice by selecting a specific level among the multilevel sound levels. The method of claim 2, The micom is a vehicle speed comparison unit for comparing whether the vehicle speed detected by the vehicle speed detection sensor exceeds a reference value, And a volume level adjusting unit configured to increase the volume level set by the volume level setting unit when the current vehicle speed exceeds the reference value, as a result of the comparison of the vehicle speed comparing unit. The method of claim 3, wherein And the volume level adjusting unit returns to the volume level set by the volume level setting unit when the vehicle speed detected by the vehicle speed sensor decreases below the reference value as the vehicle decelerates. A first step of initially setting a volume level of the guide voice output by the navigation device; A second step of detecting a vehicle speed of a running vehicle; A third step of comparing the vehicle speed detected in the second step with a preset reference value; A fourth step of upwardly adjusting the volume level set in the first step if the vehicle speed exceeds the reference value as a result of the comparison of the third step; and returning to the volume level set in the first step if the vehicle speed is less than the reference value; And a fifth step of outputting the guide voice of the navigation device at the volume level adjusted in the fourth step.