JP3797204B2 - Car navigation system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a car navigation device in which a mobile phone can be used as a remote control device or the like.
[0002]
[Problems to be solved by the invention]
Some conventional car navigation devices are capable of manual remote operation and voice remote operation. This car navigation device is provided with a remote control device for manual remote operation, and is equipped with a microphone for voice input for voice remote operation.
However, this requires a dedicated part for each function, such as a remote control device for manual remote operation and a microphone for remote operation by voice, which has been a factor of cost increase.
[0003]
The present invention has been made in view of the above circumstances, and its purpose is that manual remote control and voice remote control are possible, and the remote control can be performed using the keys of a mobile telephone and its microphone. In addition, another object of the present invention is to provide a car navigation device that can operate a mobile telephone by using the car navigation device.
[0004]
[Means for Solving the Problems]
In the present invention, when the remote operation mode is selected and a key operation is performed on the mobile phone, a key operation signal of the mobile phone is transmitted to the car navigation device, and the car navigation device performs an operation according to the key operation signal. In addition, when the voice recognition mode is selected and the user utters the voice, the voice is input to the microphone of the mobile phone, and the voice signal is transmitted from the mobile phone to the car navigation device. Is recognized, and an operation corresponding to the recognition result is performed. Further, when the telephone mode is selected and a dial number is input by the switch of the car navigation apparatus, the dial number is transmitted from the car navigation apparatus to the mobile telephone, and the mobile telephone transmits the dial number.
Further, after the operation in the selected mode is completed, the selected mode is automatically held, or the mode is automatically changed to the manual operation mode set as the initial mode.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing an electrical configuration of a car navigation device 1 and a mobile phone 2 as a mobile phone. As shown in the figure, the car navigation device 1 includes a control unit 3 as a control means, a map data storage device 4, a position detection device 5, a display 6 as a display means, an operation switch group 7 as an operation means, A speaker 8 is provided as an audio output means.
[0006]
The control unit 3 controls the overall operation of the car navigation apparatus 1 and is configured mainly with a microcomputer. That is, the control unit 3 includes a CPU, a ROM, a RAM, an I / O, a bus that connects these, and the like (all not shown). Among them, the ROM stores an execution program for operating the car navigation device 1, and the RAM temporarily stores temporary data at the time of program execution, map data acquired from the map data storage device 4, and the like. It is like that.
[0007]
The map data storage means 4 is composed of, for example, an information storage medium such as a VD-ROM and a reading device that reads map data from this information storage medium. The data for guiding the user, the search data for searching the position on the map from the place name, etc. are read from the information recording medium and input to the control unit 3.
[0008]
The position detection device 5 includes a gyroscope, a distance sensor, a GPS (Global Positioning System) receiver, and the like. Since these sensors have detection errors with different properties, combining these sensors enables position detection with high accuracy while correcting the detection errors. Depending on the required detection accuracy, it is not necessary to provide all the sensors, and they can be appropriately selected and provided.
[0009]
The display device 6 includes a display screen such as a liquid crystal display, for example, and can display map data, characters, symbols, or the like on the display screen. The operation switch group 7 is used to input data or input setting items. For example, the operation switch group 7 includes various operation switches such as a touch panel switch and a mechanical switch provided integrally with the display unit 6. It is configured.
[0010]
The control unit 3 has a function of setting a route to the destination, and a travel guidance function for instructing the direction in which the vehicle travels from the speaker 8 according to the route. That is, when a destination or a passing point is input by operating the operation switch group 7 or the cellular phone 2 as described later or by making a sound, the optimum position from the current position to the destination is reached. The route is automatically set and the destination route is displayed on the map displayed on the display screen of the display 6. When the vehicle approaches a branching point or an intersection, the direction in which the vehicle should travel is emitted from the speaker 8 by voice.
[0011]
The car navigation device 1 includes various devices necessary for the car navigation described above, first to third mode setting switches 9 to 11 as selection operation means, a dial unit 12 as dial number input means, and transmission / reception Bluetooth communication unit 13 as means, received data storage unit 14, remote operation analysis unit 15 as remote operation analysis unit, voice recognition unit 16 as voice recognition unit, telephone function unit 17 as telephone remote operation unit, etc. Yes. The first to third mode setting switches 9 to 11 and the dial unit 12 are configured by touch panel switches, mechanical switches, and the like.
[0012]
Of the three mode setting switches 9 to 11, the first mode setting switch 9 is for setting a manual remote operation mode, and the second mode setting switch 10 is a voice recognition for remote operation by voice. The third mode setting switch 11 for setting a mode is for setting a telephone mode in which the mobile phone 2 is remotely operated by the car navigation device 1. In this car navigation device 1, the initial mode is the manual operation mode. After changing to the remote operation mode, voice recognition mode, and telephone mode, the operation switch group 7 is used to return to the original manual operation mode. Operate our cancel switch. The manual operation mode is a mode in which an operation for inputting a destination or a passing point or setting a route to the input destination is performed by operating the operation switch group 7 by hand. .
[0013]
The mode selected by the first to third setting switches 9 to 11 and restored by the cancel switch is sent from the control unit 3 to the reception data storage unit 13 and the telephone function unit 17. The telephone function unit 17 sends the signal sent from the control unit 3 to the Bluetooth communication unit 13. The Bluetooth communication unit 13 transmits and receives radio signals to and from the mobile phone 2. Therefore, the mode setting signal sent from the control unit 3 to the telephone function unit 17 is transmitted from the Bluetooth communication unit 13 to the mobile phone 2. The
[0014]
A signal received from the mobile phone 2 by the Bluetooth communication unit 13 is stored in the reception data storage unit 14. The reception data storage unit 14 recognizes the mode set by the mode setting signal from the control unit 3 and gives the reception data to the remote operation analysis unit 15 or the voice recognition unit 16 according to the recognition mode. Or given to the telephone function unit 17.
[0015]
The remote operation analysis unit 15 determines the remote operation content from the remote operation signal given from the received data storage unit 14 and gives it to the control unit 3, and the control unit 3 responds to the remote operation content determined by the remote operation analysis unit 15. Perform the operation. The voice recognition unit 16 recognizes the voice signal given from the reception data storage unit 14 and gives the recognition result to the control unit 3. The control unit 3 performs an operation according to the recognition result of the voice recognition unit 16.
[0016]
When the dial unit 12 is operated, the telephone function unit 17 receives the dial number operated from the control unit 3 and transmits it to the mobile phone 2 via the Bluetooth communication unit 13. Further, when a voice signal is given from the reception data storage unit 14, the telephone function unit 17 sends the voice signal to the control unit 3, and the control unit 3 outputs the voice signal to the speaker 8 and outputs the voice from the speaker 8. To do.
[0017]
For the car navigation apparatus 1 as described above, the cellular phone 2 includes a control unit 18 as a control means, a transmission / reception unit 19, a microphone 20 for inputting a transmission voice, a speaker 21 for outputting a reception voice, and a liquid crystal display screen. In addition to the display 22 and the key switch group 23, a Bluetooth communication unit 24 as a transmission / reception unit of the mobile phone 2 is provided. The control unit 18 is mainly composed of a microcomputer and controls the overall operation of the mobile phone 2. The transmission / reception unit 19 performs transmission / reception by radio waves with the base station of the mobile phone network, and the Bluetooth communication unit 24 performs transmission / reception by radio waves with the car navigation device 1.
[0018]
The Bluetooth communication unit 24 transmits and receives signals to and from the Bluetooth communication unit 13 of the car navigation device 1 by radio waves. When the Bluetooth communication unit 24 receives a mode setting signal from the Bluetooth communication unit 13 of the car navigation device 1, the control unit 18 sets the mobile phone 2 to the same mode as the mode set in the car navigation device 1. The mode setting of the mobile phone 2 may be performed by operating the key switch group 23.
[0019]
When the key switch group 23 is operated in the state set to the remote operation mode, the control unit 18 transmits a key operation signal corresponding to the operated key switch to the car navigation device 1 via the Bluetooth communication unit 24. To do.
[0020]
When the voice is input to the microphone 20 in the state set to the voice identification mode, the control unit 20 transmits the voice signal to the car navigation device 1 via the Bluetooth communication unit 24. Further, when voice is input to the microphone 20 with the telephone mode selected, the control unit 20 transmits the voice signal to the base station via the transmission / reception unit 19. When the transmission / reception unit 19 receives the reception signal in the telephone mode, the control unit 18 transmits the reception signal to the car navigation apparatus 1 by the Bluetooth communication unit 24.
[0021]
Next, the operation of the above configuration will be described with reference to the flowcharts shown in FIGS.
When the car navigation device 1 is powered on, the control unit 3 sets the car navigation device 1 to the manual operation mode, which is the initial mode (step S1), and determines whether or not a mode change request has been made next. (Step S2) If no mode change request is made, it is determined whether or not received data is stored in the received data storage unit 14 (Step S3). When the reception data is not stored in the reception data storage unit 14 (“NO” in step S3), the control unit 3 returns to step S1.
[0022]
When one of the first to third mode setting switches 9 to 11 of the car navigation device 1 is operated, the control unit 3 becomes “YES” in Step S2 and proceeds to the mode transition routine of Step S4. The mode transition routine is shown in FIG. 3, and when the routine is entered, the control unit 3 first saves (ends) the current mode (step A1), and then selects the mode selected based on the operated switch. Is recognized (step A2), the mode is set and a mode setting signal is transmitted to the mobile phone 2 (step A3, A4 or A5), and the process returns.
[0023]
Here, it is assumed that the remote operation mode is selected by operating the first mode setting switch 9 among the first to third mode setting switches 9 to 11. Then, the control unit 3 becomes “YES” in Step S2, and proceeds to the mode transition routine of Step S4. In this mode transition routine, the manual operation mode is saved in Step A1 as described above, and the remote operation is performed in Step A2. Recognizing that the mode is selected, the process proceeds to step A3, where the car navigation device 1 is set to the remote operation mode and a signal indicating that the remote operation mode is set is transmitted via the telephone function unit 17 to the Bluetooth communication. The mobile phone 2 is set to the remote operation mode by transmitting from the unit 13.
[0024]
When the key switch group 23 of the mobile phone 2 is operated in this state, the control unit 18 transmits a key operation signal corresponding to the operated key from the Bluetooth communication unit 24. The key operation signal transmitted from the mobile phone 2 is received by the Bluetooth communication unit 13 of the car navigation device 1 and stored in the received data storage unit 14.
[0025]
On the other hand, the control unit 3 of the car navigation apparatus 1 sets the remote operation mode in the mode transition routine of FIG. 3 and then returns and proceeds to step S3 of the main routine of FIG. At this time, since the key operation signal of the mobile phone 2 is stored as received data in the received data storage unit 14, the control unit 3 determines “YES” in step S3 and proceeds to step S5. In step S5, the control unit 3 sends a key operation signal to the remote operation analysis unit 15, and the remote operation analysis unit 15 analyzes the content of the remote operation from the key operation signal and sends it to the control unit 3. And the control part 3 performs operation | movement according to the analyzed remote operation content, for example, operation | movement, such as setting the destination and automatically setting the optimal path | route. After executing step S5, the control unit 3 returns to step S2.
[0026]
In the mode selection operation, it is assumed that the voice recognition mode is selected by operating the second mode setting switch 10. Then, the control unit 3 becomes “YES” in step S2, and proceeds to the mode transition routine of step S4. In this mode transition routine, the car navigation device 1 is set to the voice recognition mode in the same manner as described above. Then, a signal indicating that the voice recognition mode is set is transmitted from the Bluetooth communication unit 13 so that the mobile phone 2 is also set in the voice recognition mode.
[0027]
In this state, when sound of content desired to be operated is uttered, the sound is input to the microphone 20 of the mobile phone 2 and is transmitted from the Bluetooth communication unit 24 as a sound signal. This audio signal is received by the Bluetooth communication unit 13 of the car navigation device 1 and stored in the received data storage unit 14. On the other hand, after setting to the voice recognition mode, the control unit 3 of the car navigation apparatus 1 returns and proceeds to step S3 of the main routine. The control unit 3 becomes “YES” in this step S3, and proceeds to step S5.
[0028]
In step S <b> 5, the control unit 3 inputs the reception data stored in the reception data storage unit 14, in this case, the voice signal transmitted from the mobile phone 2, to the voice recognition unit 16. The voice recognition unit 16 recognizes the input voice signal and sends the recognized content to the control unit 3. And the control part 3 performs the operation | movement according to the recognition result of the speech recognition part 16, for example, the operation | movement which sets a destination and sets an optimal route automatically (step S5), and returns to step S2.
[0029]
Furthermore, it is assumed that the telephone mode is selected by operating the third mode setting switch 10 in the mode selection operation. Then, the control unit 3 becomes “YES” in Step S2 and proceeds to the mode transition routine of Step S4. In this mode transition routine, the car navigation device 1 is set to the telephone mode and a signal indicating that the telephone mode is set. Is transmitted from the Bluetooth communication unit 13 and the cellular phone 2 is also set in the telephone mode.
[0030]
When a dial number is input by operating the dial unit 12 of the car navigation device 1 in this state, the control unit 3 sends the dial number to the telephone function unit 17, and the telephone function unit 17 sends the dial number from the Bluetooth communication unit 13. Send. When the Bluetooth communication unit 24 of the mobile phone 2 receives the dial number, the control unit 18 calls the destination of the dial number. When the mobile phone 2 is connected to the other party, the voice (received voice) from the other party received by the mobile phone 2 is transmitted to the car navigation device 1. The transmitted voice signal from the other party of the telephone transmitted to the car navigation device 1 is stored in the received data storage unit 14.
[0031]
On the other hand, after setting the telephone mode in the mode transition routine, the control unit 3 of the car navigation apparatus 1 returns and proceeds to step S3 of the main routine. The control unit 3 becomes “YES” in this step S3, and proceeds to step S5. In step S5, the control unit 3 gives the received voice signal stored in the received data storage unit 14 to the telephone function unit 17, and the telephone function unit 17 sends the received voice signal to the control unit 3. Outputs the received voice signal from the speaker 8 as voice. In addition, the transmission voice of the sender is input from the microphone 20 and transmitted to the base station as a voice signal from the transmission / reception unit 19 as usual.
When the connection destination of the mobile phone 2 is a website on the Internet, the image is displayed on the display device 6. When the link destination displayed on the display device 6 is clicked, the mobile phone 2 is connected to the link destination and displayed on the display device 6.
[0032]
Thus, according to the present embodiment, the mobile phone 2 can be used as a remote control in the remote operation mode, and the microphone as the voice input means can be used in the mobile phone 2 in the voice recognition mode. It is not necessary to attach a remote controller and a voice input microphone as 1 and cost can be reduced. In addition, in the present embodiment, the mobile phone 2 can be remotely operated by the car navigation device 1 to communicate with the other party in a hands-free manner.
[0033]
The present invention is not limited to the embodiments described above and shown in the drawings, and can be expanded or changed as follows.
The transmission / reception means is not limited to the Bluetooth communication unit 13. Further, the communication is not limited to wireless communication, and may be wired communication.
In the above embodiment, after the mode is changed by the operation of the first to third mode setting switches 9 to 11, the cancel switch is not operated to return to the initial mode (manual operation mode). For example, it may be configured to automatically return to the initial mode after a certain time elapses or when there is no received data in the received data storage unit 14.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an electrical configuration of a car navigation device and a mobile phone according to an embodiment of the present invention;
Fig. 2
[Explanation of symbols]
In the figure, 1 is a car navigation device, 2 is a mobile phone (mobile phone), 3 is a control unit (control means), 8 is a speaker, 9 to 11 are first to third mode setting switches (selection operation means), 12 is a dial unit (dial number input unit), 13 is a Bluetooth communication unit (transmission / reception unit), 14 is a received data storage unit, 15 is a remote operation analysis unit (remote operation analysis unit), and 16 is a voice recognition unit (voice recognition unit). ), 17 is a telephone function section (telephone remote control means), 18 is a control section (control means), 20 is a microphone, and 24 is a Bluetooth communication section.

Claims (2)

It is possible to communicate with a mobile phone and select a remote operation mode, a voice recognition mode and a telephone mode.
When the remote operation mode is selected, an operation according to a key operation signal from the mobile phone is executed,
When the voice recognition mode is selected, the voice from the mobile phone is recognized, and the operation according to the recognition result is executed.
When the telephone mode is selected, the operated dial number is transmitted to the mobile telephone so that the mobile telephone performs a calling operation , and
After the operation in the selected mode is finished , the car navigation system is configured to hold the selected mode or automatically shift to the manual operation mode set as the initial mode. apparatus. A transmitting / receiving means for transmitting / receiving to / from a mobile telephone;
A selection operation means for selecting a desired mode from the remote operation mode, the voice recognition mode and the telephone mode;
Dial number input means,
When the remote operation mode is selected, remote operation analysis means for reading a key operation signal input from the mobile phone and transmitted from the mobile phone;
Voice recognition means for recognizing a voice signal that is input to the microphone of the mobile phone and transmitted from the mobile phone when the voice recognition mode is selected;
Control means for performing an operation in accordance with the analysis result of the remote operation analysis unit and the recognition result of the voice recognition unit; and when the telephone mode is selected, the transmission / reception means receives the dial number input from the dial number input unit. Telephone remote control means for transmitting to the mobile phone via the mobile phone and causing the mobile phone to perform a calling operation ;
After the operation in the mode selected by the selection means is completed, the control unit is configured to hold the selected mode or perform control to shift to the manual operation mode set as the initial mode. Car navigation device.

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