KR20040074345A - Control device for navigation system - Google Patents

Abstract

The present invention relates to a call control device for a vehicle navigation system, and more particularly, to a call control device for a vehicle navigation system for controlling a call using telematics and hands free. To this end, the present invention is provided with a communication module capable of receiving a telematics service and a hands-free which can be used without using a user's hand by mounting a personal portable terminal. The signal through the signal of the communication module and the hands-free is characterized in that it is configured to be output through the amplifier in the vehicle by the switching operation of the switch. The switching operation of the switch is characterized by the control of the microcomputer for detecting the signal of the communication module and the generation of the output signal of the hands-free. This control allows the present invention to simultaneously perform a telematics call function and a call function through hands-free.

Description

Call control device for vehicle navigation system {Control device for navigation system}

The present invention relates to a call control device for a vehicle navigation system, and more particularly, to a call control device for a vehicle navigation system for controlling a call using telematics and hands free.

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 conventional 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. .

On the other hand, in recent years, attempts have been made to connect a vehicle navigation system to various devices in a vehicle to provide more convenient information and services to a user. As an example, a configuration is disclosed in Korean Patent Laid-Open No. 2002-57535 for automatically making a telephone call through a vehicle terminal while the vehicle is being operated while the same telephone number is assigned to the vehicle terminal and the portable terminal.

The invention disclosed in the above patent provides the convenience of use by allowing a telephone call to be made automatically through the vehicle terminal while the vehicle is being operated while the same telephone number is assigned to the vehicle terminal and the portable terminal to which different device numbers are assigned. The present invention relates to a service method of two mobile telephone terminals having a shared telephone number for maximizing safety.

As such, recent vehicle navigation systems have made efforts to provide various information to users in various directions, and also seek convenience of devices according to connection control with various devices.

Accordingly, an object of the present invention is to provide a call control device of a vehicle navigation system which can be controlled to simultaneously perform a telematics call function provided in a vehicle navigation system and a call function of a mobile communication device using hands free.

1 is a block diagram of a conventional vehicle navigation system,

2 is an overall conceptual diagram according to the present invention;

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

Explanation of symbols on the main parts of the drawings

200: TFT LCD 203: front board

206: interface board 266: speed sensor

215: CDMA 218: GPS

221 CD recording / playback deck 224 Gyro

227: motherboard 230: key control unit

233: LCD control unit 236: central processing unit

239 memory 242: audio board

245 switch 248 signal processing unit

251 tuner 254 microcomputer

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

269: external amplifier 272: TV module

Call control apparatus of the vehicle navigation system according to the present invention for achieving the above object, Communication module for telematics voice call; A handsfree for mounting a personal portable terminal; Switching means for outputting one of the communication module and the hands-free output signal; A speaker for generating an output of the switching means as a voice signal; And control means for monitoring the communication module and hands-free output signal generation and for selecting an output signal of the switching means.

Hereinafter, a vehicle navigation system according to the present invention will be described in detail with reference to the accompanying drawings.

2 is an overall conceptual diagram for controlling the vehicle navigation system according to the present invention.

The vehicle navigation system of the present invention is installed in an automobile 42. The vehicle navigation system is connected to various audio and video devices in a vehicle and adds a telematics function to perform various wireless data services. 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 addition, the vehicle navigation system of the present invention connects and uses a personal portable terminal which is a mobile communication terminal. That is, the vehicle navigation system of the present invention controls the personal portable terminal to be connected and used through an interface provided in the vehicle. In addition to such a configuration, the vehicle navigation system of the present invention receives various GPS signals required from a GPS satellite. The GPS signal and the telematics service are information provided by the vehicle information center 33 described later.

A vehicle information center 33 for controlling and managing various functions included in the vehicle navigation system of the present invention is provided. The vehicle information center 33 receives various information for providing the vehicle navigation system from the information provider 30. The vehicle information center 33 provides information to the vehicle navigation system and performs necessary management through telematics service and GPS signal transmission. Since the vehicle information center 33 needs to transmit and receive vehicle information using the GPS satellites 39, the vehicle information center 33 is closely associated with the GPS satellite 39 management station.

From such a management system, the vehicle navigation system of the present invention can receive various vehicle information from the vehicle information center 33.

On the other hand, in the vehicle navigation system of the present invention, the control to perform a call using a telematics and a call using a personal portable terminal at the same time. That is, the control is performed so that the telematics call can be simultaneously made using the personal mobile terminal connected through the in-vehicle interface and the mobile communication module in the vehicle navigation system.

Therefore, reference numeral 36 shown in FIG. 2 controls the mobile communication service of the mobile communication device 42b installed in the vehicle 42 to the service center or base station which performs the service of the personal mobile terminal. Reference numeral 42a denotes a vehicle navigation system installed in the vehicle.

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

The vehicle navigation system of 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 key control unit 230 for controlling various key signals, and a TFT to be described later. A main board 227 having an LCD control unit 233 for LCD display control is provided. The memory 239 stores map information required for displaying vehicle guidance on a map.

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.

The main board 227 is connected to the antenna 209 and the CDMA 215, which is a communication module for telematics service. The CDMA 215 is always in a waiting state for reception in a state in which power is supplied to the vehicle navigation system, and receives real-time information provided from the vehicle information center 33 and provides it to the driver.

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 radio signals, and a signal processor 248 for performing signal processing for outputting various audio signals. It includes.

In addition, the audio board 242 is provided with a switch 245 for switching the output signal, the switch 245 is a telematics service through the CDMA 215, and a voice signal supplied from a personal portable terminal to be described later It is responsible for selecting and outputting any one of the signals. Control of the switching operation of the switch 245 is made by the microcomputer 254.

The microcomputer 254 inputs an output signal and a telematics signal of the personal portable terminal and controls the switch 245 so that any one of the two signals can be selected. At this time, it is preferable to control the signal selection so that when two signals are output at the same time, they can be alternately output at regular intervals. Alternatively, the output can be controlled by detecting whether a signal is input. This part will be described in detail in the operation description.

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 may include a speed sensor for detecting a speed of a vehicle, an air pack for providing safety, and a hand free 266 for performing a call function of a personal portable terminal without using a hand of a vehicle operator. It is connected. The output signal through the hand free 266 is input to the switch 245.

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. The user selects a menu according to the vehicle movement route through a button provided on the front board 203 and inputs a starting point and a destination. The input signal is input to the key controller 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 is requesting the vehicle movement route guidance. The CPU 236 then controls the vehicle movement route guidance control required by the user. The LCD control unit 233 reads the driving road according to the movement route from the memory 239 and displays it on the TFT LCD 200 through the interface board 206.

Next, the central processing unit 236 monitors whether the user requests traffic information and the like on the current moving route. If the user requests the traffic information, the GPS 218 receives necessary information.

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, the operation process for the telematics service will be described.

When the user who mounts the vehicle navigation system 42a in the vehicle 42 wants to be provided with the telematics service, the user registers necessary information in the vehicle information center 33. In this case, the registered information may be a serial number, a connection number, etc. of the mobile communication module 215 included in the vehicle navigation system 42a. Also select the service item that you want to receive. Through this registration process, the user is provided with the necessary telematics service from the vehicle information center 33.

On the other hand, the CDMA 215 maintains a standby state capable of receiving external signals at all times while the power is supplied. Then, the telematics service information provided by the vehicle information center 33 is received through the antenna 209. The received signal is input to the main board 227 after signal processing of the mobile communication signal is performed in the CDMA 215. 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.

Next, the communication service operation process of the personal mobile terminal through the in-vehicle interface 263 will be described.

The hands-free 266 provided in the vehicle interface 263 is installed to mount the personal portable terminal 42b, and when the personal portable terminal 42b is installed, the call service can be performed without using the driver's hand. (The handsfree is the same as the general configuration).

When the personal portable terminal 42b is mounted on the hands-free, the output signal of the personal portable terminal 42b is input to the audio board 242. The amplifier 269 is then output through the amplifier 269 under the control of the microcomputer 254 of the audio board 242.

On the other hand, there is a case where the telebatex service and the personal portable terminal 42b should be output at the same time. The control operation in this case is as follows.

When the portable terminal 42b is mounted on the hands-free 266 provided in the vehicle interface 263, and the user is provided with the mobile communication service using the portable terminal 42b, the audio board 242 is provided. The switch 245 is controlled to select the output signal of the personal portable terminal 42b. That is, the microcomputer 254 controls the switch 245 to output the signal of the personal portable terminal 42b. In this way, the amplifier 269 outputs the signal of the personal mobile terminal 42b.

In the state in which this operation is controlled, the CDMA 215 has a standby state to receive the telematics service. At this time, when the vehicle information center 33 transmits the telematics service requested by the user, the CDMA 215 receives the signal, performs a predetermined signal processing, and then, via the main board 227, the audio board 242. To pass.

The telematics service signal input to the audio board 242 is processed by the signal processor 248 to convert an audio signal into a human voice. The telematics service signal in which all signal processing is performed is transmitted to the microcomputer 254 and the switch 245.

When the telematics service signal is input, the microcomputer 254 monitors whether the output signal of the personal portable terminal 42b through the hands-free 266 is input, and the output signal of the personal portable terminal 42b is present. The switch 245 is switched at a cycle not to be performed. The input telematics service signal is output to the amplifier 269 through the switch 245. Alternatively, the switching operation of the switch 245 may be controlled at a predetermined period. That is, the microcomputer 254 is configured to detect the telematics service signal and the output signal of the personal portable terminal to control the switching operation of the switch 245.

In this way, the switch 245 selects and outputs any one of a telematics service signal or an output signal of the personal portable terminal 42b, and the switch 245 output signal is provided to the user through the amplifier 269. It is done.

The following briefly describes the process of receiving a TV signal.

The TV signal received through the TV antenna 275 is subjected to signal processing of the TV signal in 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 vehicle navigation system according to the present invention is characterized by controlling to simultaneously perform a telematics service and a call service of a personal mobile terminal through hands-free. To this end, the present invention is provided with a communication module capable of receiving a telematics service and a hands-free which can be used without using a user's hand by mounting a personal portable terminal. The signal through the signal of the communication module and the hands-free is characterized in that it is configured to be output through the amplifier in the vehicle by the switching operation of the switch. The switching operation of the switch is characterized by the control of the microcomputer for detecting the signal of the communication module and the generation of the output signal of the hands-free. This control allows the present invention to simultaneously perform a telematics call function and a call function through hands-free.

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 present invention described above controls the vehicle navigation system to simultaneously perform a telematics call function and a hands-free call function. According to the control of the present invention, the vehicle navigation system is advantageous in that dual calls are possible, and performance satisfaction and convenience of use can be obtained according to optimal use of the product.

Claims (1)

A communication module for telematics voice call; A handsfree for mounting a personal portable terminal; Switching means for outputting one of the communication module and the hands-free output signal; A speaker for generating an output of the switching means as a voice signal; And a control means for monitoring an occurrence of an output signal of the communication module and a handsfree and selecting an output signal of the switching means.