JPH0599679A - Navigation device - Google Patents

Abstract

PURPOSE:To precisely and easily input a voice by displaying a voice-inputtable operation command on a monitor according to the operating state at the time of voice input. CONSTITUTION:The voice of a user is preliminarily registered to a voice registering device 7. When a voice registering button is operated, a system reads a table from a ROM 10, displays it on a display device 9, and demands the user to speak. The voice of a password is inputted to a voice identifying device 7 through a microphone provided in a voice input device 6 and stored in a memory built in the voice identifying device 7 in relation to operation command No. The user repeats this operation up to the final command No. and terminates the voice registration. When a CPU 1 receives the command of the operator through a panel switch 5 or the voice input device 6, a drawing according to the command is projected on the display device 9, and the voice according to the command is outputted from a voice output device 8. At this time, the switch 5 is provided to use a preliminary means for the case where voice input can not be performed because of noise.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device capable of inputting operation commands by voice.

[0002]

2. Description of the Related Art As an existing navigation device, a vehicle-mounted navigation system currently exists. In such a navigation system, map information is stored in a CD-ROM, and a map including the current position of the vehicle is stored in this CD.
Read from ROM and display on monitor. The current position of the vehicle is overlaid and displayed on this display map. Here, the current position of the vehicle is GPS (Global Positioning S
ystem), beacons, geomagnetic sensors, etc. are used to sequentially update the displayed map. The user can know the current traveling position of the vehicle in real time by looking at the monitor.

Recently, a vehicle-mounted navigation system capable of inputting operation commands by voice has been developed. According to such a navigation system, complicated work such as operating the operation button when inputting an operation command can be omitted.

However, such a navigation capable of voice input
In the navigation system, the system has various operating states, and commands that can be commanded differ depending on each state, so that the user can input any command in each operating state of the navigation system.
Or, it is necessary to remember exactly what the input voice corresponding to the command is, but it is almost impossible to remember these accurately.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a navigation device capable of solving the disadvantages of the above conventional example.

[0006]

In view of the above problems, the present invention provides a navigation device capable of inputting an operation command by voice on a monitor according to the operation state at the time of voice input. It is characterized by having means for displaying.

[0007]

When a voice is input, for example, in response to a voice input of a keyword, a menu of operation commands capable of voice input in the operating state at that time is displayed on the monitor.

[0008]

FIG. 1 shows a block diagram of an embodiment. The present embodiment is an example in which the present invention is applied to a vehicle-mounted navigation system. In the figure, reference numeral 1 denotes a CPU, which operates the system by communicating between a ROM 10 having a program for operating the system and a RAM 11 having a variable group necessary for the operation of the system. Where ROM1
In 0, the table shown in FIG. 3 is stored together with the program. In this table, the relationship between the voice input command and the function that responds to this command is defined together with the operation command NO. Further, in this table, screen data for displaying a voice input command item group capable of voice input to the system is stored as a display card NO for each operating state of the system. The table and screen data are used when voice-inputting an operation command to the system. Incidentally, the display screen corresponding to the display card No. 1 is as shown in FIG. 4, and the display screen corresponding to the display card No. 2 is as shown in FIG. It should be noted that the RAM 11 sequentially stores a state variable indicating the operating state of the system. Such state variables correspond exactly to the display card NO in that operating state.

Reference numeral 2 is a vehicle position detecting device for detecting the current position of the vehicle, which has a built-in geomagnetic sensor and a distance sensor, and adds the traveling direction and the traveling distance of the vehicle in vector form every unit time. The present position information of the vehicle is obtained and this position information is provided to the CPU 1. Reference numeral 3 denotes a map / guidance information reproducing device, which has a built-in CD-ROM storing map information and guidance information such as a parking lot and a playground and a CD-ROM drive for reproducing the same, and map information of a desired area and its guidance information Is reproduced and provided to the CPU 1. An external information receiving device 4 receives the position information of the vehicle by GPS or a beacon, and uses the current position information of the vehicle by the CPU to reset the current position of the vehicle by the own position detecting device 2.
1 to provide.

The present system issues a command for reproducing map information including the current position of the vehicle based on the current position information of the vehicle from the vehicle position detecting device 2 and the external information receiving device 4 to the map / guidance information reproducing device 3. Do against. The map / guidance information reproducing device 3 reproduces the map information and the guidance information according to the command, and supplies this to the CPU 1. CPU1
Is based on such map information and guidance information and the current position information of the vehicle, to create image data representing a map screen or a screen for guidance information to which the current position of the vehicle is added,
This is sent to the display device 9. The display device 9 includes an image memory and a CRT, stores the image data sent from the CPU 1 in the image memory, and projects an image based on the image data on the CRT.

A panel switch input device 5 issues an operation command to the CPU 1 in response to the operation of the panel switch displayed on the monitor. Reference numeral 6 denotes a voice input device, which is equipped with a microphone, collects voice input from the user by the microphone, and transmits it to the voice recognition device 7.
Here, a voice is registered in the voice recognition device 7 for each operation command by the voice of the user.
Compares the input voice with the registered voice and issues a corresponding operation command to the CPU 1.

The voice registration of the operation command to the voice recognition device 7 will be described in more detail. When performing voice registration of an operation command, first, a voice registration button (not shown) arranged on the system is operated. In response to such an operation, the system reads the table of FIG. 3 from the ROM 10 and, via the display device 9 and the audio output device 8, gives an instruction to prompt the user to input a voice in order from the operation command No. 1 of this table. To do. For example, at the time of voice registration of the operation command No. 1, “Register password” is displayed on the monitor of the display device 9, and “please pronounce the password” is output to the voice output device 8. The user pronounces a predetermined password accordingly. The voice of the password is input to the voice recognition device 7 through the microphone provided in the voice input device 6, and is stored in the memory built in the voice recognition device 7 in association with the operation command No. When the user's voice is registered for the voice input of the operation command No. 1 in this way, the user's voice is registered similarly for the operation command No. 2. In this case, "Register password" is displayed on the monitor of the display device 9, and the voice output device 8
From, a voice saying "Please pronounce Hachiju" is issued. The user repeats the voice registration operation until the final operation command NO shown in FIG. Then, the voice registration of the user with respect to the voice recognition device 7 is completed.

When the CPU 1 receives an operation command via the panel switch input device 5 or the voice input device 6,
In response to this, a screen corresponding to this command is projected on the display device 9, and at the same time a voice corresponding to this command is output by the voice output device 8
Output audio from. Here, not only the voice input device 6 but also the panel switch input device 5 is installed in the system when, for example, the user's voice is not correctly input to the system due to noise in the vehicle, or the user other than the user who registered the voice does not use the system. This is to allow the operation command to be input to the system by using the panel switch input device 5 in an auxiliary manner when the operation command cannot be input to the system due to voice, such as when performing an operation command to.

Next, the operation of the system at the time of a voice input command, which is a feature of the present invention, will be described with reference to the flowchart of FIG. When the system is in the prescribed operating state,
When it is detected that the password is inputted by voice by the user (step 1), the timer incorporated in the CPU 1 is activated accordingly (step 2), and at the same time, the CPU 1 is activated.
Is a display card NO and RA stored in the ROM 10.
The state variable of the system stored in M11 is compared, and the operation command voice input item of the display card NO that matches this state variable is displayed on the display device 9 (step 3). An example of such a display is shown in FIG. Such a display example is a display example when the user inputs a password by voice while the system is in the operating state 1. In this case, the screen of the monitor of the display device 9 changes from the state of FIG. 6 (a) to that of FIG. 6 (b).
The state switches to. By looking at the display screen, the user can know the operation command items that can be input by voice when the system is in this state.

When the system is thus set in a state capable of accepting a voice input, the system next determines whether or not a voice input from the user is received (step 4). This determination is made based on whether or not the CPU 1 has received from the voice recognition device 7 an operation command item capable of voice input in the system state at that time. Therefore, even if the user voice-inputs an operation command item to the system that cannot be voice-input in that state, the CPU 1
Does not accept this, so in this case step 4
Is determined to be NO. This determination is executed within the timer time set in step 2 (step 5). And within the timer time,
When the operation command item is not correctly input by the user, the process proceeds to step 6 to display the voice and the voice indicating that the voice input has failed via the display device 9 and the voice output device 8.

On the other hand, when the operation instruction item is correctly input by the user within the timer time, the voice output device 8 is caused to make a sound indicating that the operation instruction is accepted (step 7), and this operation is performed. Then, the operation according to the command is executed (step 8). When the operation command item is “destination”, the screen of the monitor of the display device 9 switches to the state of FIG. In case of voice input failure, FIG.
Return to the state of (a).

By the way, in the state of FIG.
The operation command items displayed on the monitor also function as a touch panel. Therefore, in such a state, when the operation command cannot be input by voice due to noise or the like, the user can input the operation command by the touch panel method.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments.
It goes without saying that various other changes are possible. For example, the operation command items that can be input by voice are not limited to those shown in the table of FIG. 3, and can be changed as necessary. Further, the display method of such operation command items is not limited to the above-mentioned embodiment, and various changes can be made.

[0019]

As described above, according to the present invention, since the operation command items that can be input by voice are displayed on the monitor at the time of voice input, the user can see the appropriate operation input item and input the appropriate voice input item and the input word at that time. I can know.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment.

FIG. 2 is a flowchart showing the operation of the embodiment.

FIG. 3 is a diagram showing a table stored in a ROM.

FIG. 4 is a diagram showing a display example of operation command items.

FIG. 5 is a diagram showing a display example of operation command items.

FIG. 6 is a diagram showing a change in a display screen when an operation command voice is input.

[Explanation of symbols]

 1 CPU 6 voice input device 7 voice recognition device 9 display device

Claims (1)

[Claims] 1. A navigation device capable of inputting an operation command by voice, comprising means for displaying an operation command capable of voice input on a monitor according to an operating state at the time of voice input. Device.