KR20040078975A - Information output device for nevigation system - Google Patents

Abstract

PURPOSE: An apparatus for informing travel time information of a navigation system is provided to prevent the accident generated at the driving by receiving the travel time information through a voice system. CONSTITUTION: An apparatus for informing a travel time information of a navigation system includes a speed sensor(266), an input unit(203), a global positioning system(GPS) module(218), a controller(236) and an amplifier(269). The speed sensor(266) detects the moving speed of the vehicle. The input unit(203) inputs the current position and the destination. The GPS module(218) receives the distance between the current position inputted through the input unit(203) and the destination. The controller(236) calculates the moving time by using the moving distance received through the GPS module(218) and the speed detected through the speed sensor(266). And, the amplifier(269) outputs the travel time information calculated at the controller(236) through sound.

Description

Information output device for vehicle navigation system {Information output device for nevigation system}

The present invention relates to a movement time information notification device of a vehicle navigation system, and more particularly, to a movement time information notification device of a vehicle navigation system for informing the movement time information according to a movement distance from a current position of a vehicle to a destination. will be.

The development of industry and technology is providing modern people with prompt information and various technologies. Vehicle navigation systems are also a product of this development. In particular, Hyundai may suffer economic and time losses due to increased traffic congestion and logistics costs. Therefore, attempts are being made to efficiently control traffic flows to prevent such economic losses. One of them is the vehicle navigation system.

1 is a block diagram of a general vehicle navigation system.

A general vehicle navigation system detects the position of a driving vehicle, reproduces an electronic map corresponding to the position of the vehicle from the recording medium 13 that records geographic information, etc., and electronically maps the driving trajectory of the vehicle to the terminal 14. The operation of displaying on the screen is performed. In addition, when the user designates a starting point and a destination through the key input unit 11, the vehicle navigation system searches for a driving route corresponding to the starting point and a destination, and displays the result on an electronic map so that the user can easily check. The vehicle navigation system receives a satellite signal from the GPS satellites disposed on the earth through the GPS receiver 10, and tracks the driving trajectory by grasping the current position and traveling direction of the vehicle under the control of the vehicle navigation controller 12. . And since it is possible to reach the destination from the starting point through several driving routes, it is required to provide the vehicle driver with the shortest route.

That is, the general vehicle navigation system shown in FIG. 1 tracks the position of a vehicle in operation and accurately displays it on a road map, and provides various other useful information according to road traffic conditions, gas stations, government offices, etc. to a destination. .

As described above, the conventional vehicle navigation system can be provided with information according to the movement route of the vehicle equipped with the vehicle navigation system, and the received information is displayed together with the map information on the display. This process enabled the driver in the vehicle to visually check the information displayed on the display to provide the necessary information.

However, the conventional vehicle navigation system has the following problems.

Conventional vehicle navigation systems display information requested by a driver on a display. Therefore, in order to receive information from a driver in a vehicle, the driver had to visually perform other tasks besides driving the vehicle, for example, information verification. However, such an operation poses a risk of driving safety. Due to this problem, the conventional vehicle navigation system was able to receive information before the vehicle was driven, and finally, its use range was limited. In addition, the conventional vehicle navigation system does not provide movement time information such as a required time and arrival time according to the vehicle moving distance from the current position to the destination. For this reason, the conventional vehicle navigation system has caused consumer complaints due to low price / performance.

Recently released vehicle navigation system is configured to be compatible with other electronic equipment in the vehicle, and furthermore, with the development of technology, various information and data can be shared through various equipment.

Accordingly, an object of the present invention is to provide a movement time information notification device of a vehicle navigation system capable of receiving voice movement time information according to a vehicle moving distance in a vehicle navigation system.

1 is an exemplary view of a conventional vehicle navigation system;

2 is an overall schematic diagram for controlling a vehicle navigation system according to the present invention;

3 is a control block diagram of a vehicle navigation system according to the present invention;

4 is an operation flowchart for informing movement time information in a direction navigation system according to the present invention;

Explanation of symbols on the main parts of the drawings

215: CDMA 218: GPS

221: CD deck 224: gyro

227: motherboard 230: key control unit

233: LCD control unit 236: central processing unit

239 memory 242: audio board

245 power 248 signal processing unit

251 tuner 254 microcomputer

257,209,212,275: Antenna 260: Tape Deck

269: external amplifier 272: TV module

266: speed sensor 267: hand free

Movement time information notification device of a vehicle navigation system according to the present invention for achieving the above object comprises a speed detection sensor for detecting a moving speed of the vehicle; Input means for inputting a current location and a destination; A GPS module for receiving a distance between the current location and the destination input through the input means from an external device; Control means for calculating a travel time by using the travel distance received through the GPS module and the speed detected by the speed detection sensor; And an amplifier for outputting the movement time information calculated by the control means through voice.

The control means checks the current output state of the amplifier and controls the output of the movement time information in the no signal state.

And display means for displaying the travel time information calculated by the control means on the screen.

Hereinafter, with reference to the accompanying drawings it will be described in detail with respect to the movement time information notification device of the vehicle navigation system according to the present invention.

2 is an overall conceptual diagram for controlling the vehicle navigation system according to the present invention. The vehicle navigation system 140 of the present invention receives the moving distance from the current position to the destination through a GPS signal or a telematics signal, measures the current traveling speed of the vehicle, and then uses the current traveling speed of the vehicle to the destination. Calculate the travel time. The moving time information may be controlled to be provided to the driver through voice or text.

The vehicle navigation system 140 of the present invention for this purpose is installed in a vehicle, connected to various audio and video devices in the vehicle, and is configured to perform various wireless data services by adding a telematics function. . The vehicle navigation system of the present invention for the telematics service is provided with a communication module. In general, a car telematics service combines mobile communication technology and location tracking technology with a vehicle to provide a driver with a car accident, theft detection, driving directions, traffic and living information, and games in real time. In particular, in the present invention, the telematics service provides moving distance information and current time information from the current position of the vehicle to the destination.

In addition to such a configuration, the vehicle navigation system 140 of the present invention receives various GPS signals required from the GPS satellites 130. In the present invention, it is also possible to receive movement distance information and current time information using the GPS signal. The GPS signal and the telematics service are information provided by the vehicle information center 110 described later.

The present invention is provided with a vehicle information center 110 for controlling and managing various functions included in the vehicle navigation system 140. The vehicle information center 110 receives various information for providing the vehicle navigation system 140 from the information provider 100. The vehicle information center 110 provides information to the vehicle navigation system 140 and performs necessary management through telematics service and GPS signal transmission. Since the vehicle information center 110 needs to transmit / receive the vehicle information using the GPS satellites 130, the vehicle information center 110 has a close relationship with the management station of the GPS satellites 130.

From such a management system, the vehicle navigation system 140 of the present invention can receive various vehicle information from the vehicle information center 110. The information provider 100 provides geographic information, traffic information, various Internet information, and the like.

In addition, the vehicle information center 110 must control a mobile communication module inside the vehicle navigation system 140 for a telematics service. To this end, the vehicle information center 110 must enter into an arbitrary contract with a service center having a mobile communication network or the telecommunication company 120. It serves to use the communication network of the mobile communication service center 120 and the various information provided from the service center 120 to deliver to the vehicle navigation system 140.

Next, Figure 3 is a control block diagram of a vehicle navigation system according to the present invention.

The vehicle navigation system according to the present invention includes a central processing unit (CPU) 236 for controlling the system as a whole, a memory 239 for storing various kinds of information, a timer 238 for time checking, and keys for controlling various key signals. A control unit 230 and a main board 227 incorporating an LCD control unit 233 for TFT LCD display control described later.

The memory 239 stores map information provided through the vehicle information center 110. The map information is updated and stored at predetermined intervals according to changes of roads and buildings. The map information stored in the memory 239 is provided under the control of the central processing unit 236 when tracking or displaying vehicle movement position information and displaying a movement route from a current position to a destination. In addition, the memory 239 stores various control data (TFT LCD screen configuration data, etc.) necessary for controlling the vehicle navigation system.

The motherboard 227 includes a GPS 218 for receiving GPS signals for guiding a vehicle, tracking a route from a starting point to a destination, a CD deck 221 for reproducing a CD signal, and a gyro 224. The back is connected via cable or directly. The GPS 218 receives a signal through an antenna 212. In the present invention, the GPS 218 receives distance information and current time information from the starting point to the destination requested by the user from the vehicle information center 110.

The main board 227 is connected to a CDMA 215 and an antenna 209 which are communication modules for telematics services. The CDMA 215 is always in a waiting state for reception when power is supplied to the vehicle navigation system, and receives distance information and current time information provided from the vehicle information center 110.

In addition, a TV module 272 for receiving a TV signal is connected to the main board 227, and the TV module 272 receives a TV signal through a TV antenna 275. The main board 227 is connected to the TFT LCD 200 under the control of the LCD control unit 233 and the front board 203 under the control of the key control unit 230 through the interface board 206. have. The TFT LCD 200 displays various video signals and text signals, and the front board 203 is provided with buttons for inputting various key signals, and provides key signals corresponding to a user-selected button. Provided to the motherboard side.

In addition, the vehicle navigation system of the present invention is connected to the main board 227, and an audio board 242 for processing various audio signals is connected. The audio board 242 includes a microcomputer 254 for controlling the audio board 242, a tuner 251 for receiving a radio signal, a power 245 for supplying power to the microcomputer 254, and And a signal processor 248 for performing signal processing for outputting various audio signals.

The audio board 242 is connected with a radio antenna 257 for receiving a radio signal, a tape tag 260 for reproducing the audio tape, and the like. The audio board 242 is also connected to the interface board 206. In addition, an amplifier 269 for outputting a voice signal processed by the audio board 242 is connected to the audio board 242.

The amplifier 269 is connected to the vehicle interface 263. That is, the audio board 242 and the main board 227 are connected to the vehicle interface 263. The vehicle interface 263 is connected to a speed sensor 266 for detecting a speed of a vehicle, an air pack for providing safety, and a hand free 267 for inputting a voice signal without using a hand of a vehicle operator. .

The speed signal of the vehicle detected by the speed sensor 266 may be input to the main board 227 or the audio board 242. The input speed signal is used to calculate travel time information reaching a destination in response to distance information input through a GPS signal or a telematics service. Therefore, the movement time information calculation is calculated under the control of the central processing unit 236 inside the main board 227 or under the control of the microcomputer 254 inside the audio board 242.

The travel time information thus calculated is output as an audio signal through the amplifier 269 under the control of the microcomputer 254. In addition, the calculated movement time information can be displayed as a text signal on the TFT LCD 200 via the interface board 206.

Next, an operation process of the vehicle navigation system according to the present invention having the above configuration will be described.

First, a vehicle position guide process as a vehicle navigation system is as follows. When the user selects a menu according to the vehicle position guide through a button provided on the front board 203, the selection signal is input to the key control unit 230 inside the main board 227 through the interface board 206.

The key controller 230 recognizes the input signal and informs the central processing unit 236 that the user requests the vehicle location guidance. The central processing unit 236 then controls to perform the vehicle position guidance control required by the user.

The GPS 218 reaches the destination according to the current position of the vehicle, the information according to the moving route from the origin to the destination requested by the user, and the other destination through the antenna 212 under the control of the central processing unit 236. Receive various traffic information required to do this. The GPS signal received by the GPS 218 is mixed with the map information stored in the memory 239 under the control of the LCD control unit 233 and displayed on the TFT LCD 200.

At this time, when the user requests the GPS signal received by voice, the CPU 236 outputs the received GPS signal to the audio board 242. The audio board 242 inputs the received GPS signal through the signal processor 248 and outputs it through the amplifier 269 under the control of the microcomputer 254. In this way, the user can listen to the GPS signal received by voice.

Next, when the user in the vehicle equipped with the vehicle navigation system of the present invention wants to check the movement time information to the destination according to the movement distance of the vehicle, the movement time through the operation process of the operation flowchart shown in FIG. You will be informed.

The user inputs a button (signal) according to the movement time information request through the front board 203 (step 100). The input signal is input to the central processing unit 236 in the main board 227 through the interface board 206. Thereafter, the CPU 236 performs control necessary to provide movement time information.

The central processing unit 236 reads the screen configuration data for inputting the current position and the destination information from the memory 239 and controls it to be displayed on the TFT LCD 200 under the control of the LCD control unit 233. The user inputs the current position and destination information according to the data displayed on the TFT LCD 200. The current position and destination information input in this way are transmitted to the vehicle information center 110 through the GPS 218 under the control of the central processing unit 236 (step 110).

The vehicle information center 110 receives the signal transmitted from the vehicle navigation system through the GPS satellites 130, decodes the received signal, and calculates and transmits the shortest distance for reaching the destination from the current position. The signal is transmitted to the vehicle navigation system and received through the antenna 212 (step 120).

The GPS signal received in step 120 is processed by the GPS module 218 and then input to the main board 227. When the total moving distance is received, the CPU 236 reads the moving speed of the current vehicle detected by the speed sensor 266 through the vehicle interface 263 (step 130).

The estimated time required to reach the destination is calculated by corresponding the current speed in step 130 to the total moving distance in step 120. The arrival time is calculated by applying the estimated time required to the current time (step 140). The current time may be read through the timer 238 in the system or may be requested to the vehicle information center 110 if necessary.

The arrival time calculated as described above is output through the amplifier 269 after performing the signal processing according to the audio signal output from the audio board 242 (step 150). At this time, the central processing unit 236 may perform a control to display the calculated arrival time in text on the TFT LCD 200 (step 160).

On the other hand, before transmission to the amplifier 269 in step 150, the microcomputer 254 confirms whether or not the current output of another audio signal. That is, in the case of outputting an audio signal such as a radio or CD, the arrival time voice output of step 150 is temporarily waited. The voice output of the arrival time is controlled at the moment when there is no voice output (steps 145 and 147).

Next, an operation process for a mobile communication service will be described.

The CDMA 215 maintains a standby state capable of receiving external signals at all times while power is supplied. When the user wants to receive a mobile communication service from the outside, the user receives an external mobile communication signal through the antenna 209. The received mobile communication signal is subjected to signal processing of the mobile communication signal by the CDMA 215, and the mobile communication signal for transmission to the outside is also transmitted by signal processing of the mobile communication signal by the CDMA 215.

The received mobile communication signal is signaled by the CDMA 215 and then input to the main board 227. The main board 227 transmits the CDMA received signal to the audio board 242 under the control of the central processing unit 227.

The audio board 242 inputs a signal through the signal processor 248, processes the signal into a human-readable signal, and outputs the signal through the amplifier 269 under the control of the microcomputer 254.

In addition, the vehicle navigation system of the present invention can receive a TV signal, a radio signal. As an example, the TV signal received through the TV antenna 275 is subjected to signal processing of the TV signal by the TV module 272. The TV signal received in this manner is displayed on the TFT LCD 200 via the interface board 206 under the control of the LCD control unit 233.

The audio signal is transmitted to the audio board 242 and output to the amplifier 269 under the control of the microcomputer 254 and is provided to the user. At this time, the audio signal output to the amplifier 269 and the video signal output to the TFT LCD 200 are output by adjusting the synchronization signal.

Similarly, the audio output of the radio signal through the tuner 251 and the audio output of the audio tape through the tape deck 260 are processed through the audio signal in the audio board 242 and output through the amplifier 269. The audio signal reproduced through the CD deck 221 is also output through the amplifier 269, and various video signals are displayed through the TFT LCD 200.

As described above, the vehicular navigation system of the present invention is characterized by calculating the travel time according to the arrival of the vehicle to the destination and performing the control of notifying the arrival time by voice and text. To this end, the vehicle navigation system of the present invention detects the traveling speed of the vehicle using a speed sensor. And the GPS module receives the movement distance from the current position to the destination, and calculates the movement time in real time corresponding to the traveling speed of the vehicle. The calculated travel time information is provided to the user through voice or text. In particular, the present invention can calculate the travel time information in real time and provide it to the user. This is because it is possible to calculate the travel time in real time using the distance between the current position and the final destination and the traveling speed of the current vehicle.

In the above embodiment, the process by the control of the main board 227 is described, but the process may be performed by the control of the audio board 242. In this case, the necessary information is input by the control of the microcomputer 254 in the audio board 242, the arrival time is calculated, and the audio output is controlled through the amplifier 269.

In addition, as another embodiment of the present invention, under the control of the central processing unit 236 or the microcomputer 254, it is also possible to perform the information input required in steps 100 and 110 by voice. . In this case, input of the necessary information, the current location and destination information is input by voice through the hands-free 267, and the signal processing unit 248 in the audio board 242 performs the necessary signal processing, and then vehicle information It is performed by the process to be transmitted to the center (110).

That is, when the user wants to request travel time information while driving a car, selection and information input are performed by voice. At this time, the signal input by voice, the signal processing unit 248 in the audio board 242 performs a signal processing for converting each circuit element into a recognizable electrical signal, and then is transmitted to the place where the signal input is required.

In addition, the embodiment of the present invention has been described an example in which the entire travel distance from the current position to the destination is provided from the outside of the vehicle navigation system. However, when information capable of calculating the total travel distance is stored in the memory 239, there is no need to receive a signal from the outside. This memory 239 stores data according to map information, and the map information is information obtained by reducing the current distance by a certain ratio. Therefore, when the basic information is recognized, the entire moving distance from the current position to the destination can be calculated based on the value stored in the memory 239. In this case, the entire moving distance of the 120th step can be calculated based on the information stored in the memory 239.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

The moving distance information notification device of the vehicle navigation system according to the present invention described above is characterized in that the moving time information is calculated in real time and notified through a voice. Therefore, the user can check the travel time information to the destination in real time, and in particular, since the travel time information can be provided by using voice, it is possible to prevent a safety risk that may occur while driving the vehicle.

Claims (3)

A speed detection sensor detecting a moving speed of the vehicle; Input means for inputting a current location and a destination; A GPS module for receiving a distance between the current location and the destination input through the input means from an external device; Control means for calculating a travel time by using the travel distance received through the GPS module and the speed detected by the speed detection sensor; Movement time information notification device of a vehicle navigation system comprising an amplifier for outputting the movement time information calculated by the control means through a voice. The method of claim 1, The control means checks the current output state of the amplifier, and controls the movement time information of the vehicle navigation system, characterized in that for controlling the output of the movement time information in a no signal state. The method of claim 2, And a display means for displaying the travel time information calculated by the control means on a screen.