JP2003247847A - Navigation system using brain wave signal and navigation control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a navigation system using a brain wave signal in which an image of a guide object to be navigated by using the brain wave signal can be displayed freely and to obtain a navigation control method. <P>SOLUTION: In a brain wave processing part 71 inside a data processing part 4, a pattern of the brain wave signal corresponding to a control signal used to display the image of the guide object is stored in advance. Whether the pattern of the brain wave signal requesting the image of the guide object detected in a brain wave detection part 5 corresponds to the stored control signal is discriminated. When it corresponds, the image of the guide object corresponding to the detected pattern of the brain wave signal is displayed on a display part 9. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device and a navigation control method using an electroencephalogram signal.

[0002]

2. Description of the Related Art In a conventional navigation device for guiding the traveling of a vehicle, a GPS (Global Positioning System) for detecting the position of the vehicle, a speed sensor, an intersection as a guidance object, a gas station, a hotel, a convenience store, etc.
A data storage unit that stores image data of maps including facilities,
A key input unit including various keys for inputting a control signal in accordance with an operation, a display unit for displaying a map, and the like are provided. When approaching a stored guidance object such as an intersection or a facility, the guidance object is automatically displayed according to a program for image display, so that the user can confirm the guidance object.

[0003]

However, in the conventional navigation device, when the intersection or facility on the travel route reaches the set distance according to a predetermined program, the user displays the set distance. I wanted to see an intersection or facility before I reached the distance, but I couldn't. For this reason, for example, when you want to take a leisurely turn from a busy main road to a side road at an intersection that you did not plan to turn in advance, stay at a hotel far from the set distance, or go to a convenience store. There is a problem in that it is not possible to display a guidance target that has deviated from a predetermined program as in the case of wanting.

The present invention has been made in order to solve the above-mentioned problems, and a navigation device and a navigation using an electroencephalogram signal which can freely display an image of a navigation target using the electroencephalogram signal. The purpose is to obtain a control method.

[0005]

A control device using an electroencephalogram signal according to the present invention provides an electroencephalogram signal pattern requesting an image of an arbitrary guidance target for navigation and a control signal for displaying the image of the guidance target. Correspondingly stored storage means, detection means for detecting an electroencephalogram signal requesting an image of at least one guidance target, pattern of electroencephalogram signals detected by the detection means, and image display stored in the storage means If there is a correspondence with the control signal, it is determined whether or not the guidance target related to the request exists within a predetermined range of the travel route of the own vehicle, and if there is, a control approval signal is generated. When the control approval signal is generated by the means and the determining means, a control signal for image display corresponding to the pattern of the detected electroencephalogram signal is sent to a predetermined display means and the image is displayed. And it has a display control means for displaying an image of the guide target in accordance with the shown.

In the control device using the electroencephalogram signal according to the present invention, the storage means prestores the electroencephalogram signal pattern for each user who is the subject of detection of the electroencephalogram signal.

In the navigation device using the electroencephalogram signal according to the present invention, the guidance target displayed on the display means is an intersection.

In the navigation device using the electroencephalogram signal according to the present invention, the guidance target displayed on the display means is a facility.

In the navigation device using the electroencephalogram signal according to the present invention, when the information of the specific guidance object is displayed on the display means, the electroencephalogram signal for affirming the image display of the guidance object is detected by the detection means. When
The judging means is for generating a control approval signal.

In the navigation apparatus using the electroencephalogram signal according to the present invention, when the discriminating means detects the electroencephalogram signal pattern by the detecting means, the voice recognition signal obtained from the predetermined voice recognizing means becomes the electroencephalogram signal pattern. The control approval signal is generated when it further corresponds to the corresponding control signal.

In the navigation device using the electroencephalogram signal according to the present invention, the pattern of the electroencephalogram signal stored in the storage means corresponds to the control signal for selecting a specific icon from the plurality of icons sequentially displayed on the display means. Is what you are doing.

In the navigation device using the electroencephalogram signal according to the present invention, the pattern of the electroencephalogram signal stored in the storage means is such that the display states of a plurality of icons simultaneously displayed on the display means are sequentially changed for each icon. This corresponds to a control signal for selecting a specific icon at that time.

In the navigation control method using an electroencephalogram signal according to the present invention, a pattern of the electroencephalogram signal requesting an image of an arbitrary guidance object for navigation and a control signal for displaying the image of the guidance object are associated with each other. A first step of storing in the storage means, a second step of detecting an electroencephalogram signal requesting an image of at least one guidance target, a pattern of the electroencephalogram signal detected by the second step, and the pattern of the electroencephalogram signal stored in the storage means. If there is a correspondence with the image display control signal, it is determined whether or not the guidance target related to the request exists within a predetermined range of the travel route of the own vehicle, and if there is, a control approval signal. And a control approval signal is generated in the third step, the image display control corresponding to the detected electroencephalogram signal pattern is generated. In which a fourth step which sends a signal to a predetermined display means displays an image of the guide target in accordance with the image display.

In the navigation control method using an electroencephalogram signal according to the present invention, the first step is to preliminarily store the electroencephalogram signal pattern for each user, which is an electroencephalogram signal detection target, in the storage means.

In the navigation control method using an electroencephalogram signal according to the present invention, the guidance target displayed on the display means is an intersection.

In the navigation control method using an electroencephalogram signal according to the present invention, the guidance target displayed on the display means is a facility.

In the navigation control method using the electroencephalogram signal according to the present invention, when the information of the specific guidance target is displayed on the display means, the second electroencephalogram signal indicating that the image display of the guidance target is affirmed. When detected by the step, the third step is to generate a control acknowledge signal.

In the navigation control method using an electroencephalogram signal according to the present invention, in the third step, when the pattern of the electroencephalogram signal is detected by the first step, a voice recognition signal obtained from a predetermined voice recognition means is generated. The control approval signal is generated when it further corresponds to the control signal corresponding to the pattern of the electroencephalogram signal.

In the control method using the electroencephalogram signal according to the present invention, the pattern of the electroencephalogram signal stored in the storage means is
This corresponds to a control signal for selecting a specific icon from a plurality of icons sequentially displayed on the display means.

In the control method using the electroencephalogram signal according to the present invention, the pattern of the electroencephalogram signal stored in the storage means is
This corresponds to a control signal for selecting a specific icon when the display states of a plurality of icons simultaneously displayed on the display means sequentially change for each icon.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. In general, human brain waves range from 0 Hz to several hundred Hz.
It is composed of frequency bands up to. A paper by Hirokazu Tagauchi, "Evaluation of usability of software by sensitivity" (UNISYS TECHNOLOGY REVI)
EW 64, FEB. 2000) according to the sensitivity spectrum analysis method, theta wave of 5 to 8 Hz, 8 to 1
Brain waves can be measured as an α wave of 3 Hz and a β wave of 13 to 20 Hz. In the measurement by the sensitivity spectrum analysis method described in this paper, 10 electrodes are brought into contact with the head, the potentials at any two electrodes are detected as brain wave signals, and the brain wave signals are amplified by an amplifier. To measure. Therefore, 45 types of electrode pairs can be selected. This is obtained for each of θ waves, α waves, and β waves in three frequency bands. As a result, 135 correlation coefficient values are obtained. The electroencephalogram is analyzed by calculating the 540 coefficients by capturing the feature quantities related to the four human sensitivities (“anger / stress”, “joy”, “sadness”, and “relaxation”). In the first and second embodiments described below, based on the above-mentioned paper and other already-known EEG research and publication materials, a case where navigation processing for vehicle traveling is performed using an EEG signal will be taken as an example. The present invention will be described.

Embodiment 1. In FIG. 1, 1 is a key input unit (input unit), 2 is a sensor input unit, 3 is a data storage unit, 4 is a data processing unit, 5 is an electroencephalogram detection unit (detection unit),
6 is an electroencephalogram interface (I / F), 7 is an arithmetic processing unit in the data processing unit 4, 8 is a drawing processing unit and drawing RAM (display control unit) in the data processing unit 4, and 9 is a display unit (display unit). , 71 is an electroencephalogram processing unit in the arithmetic processing unit 7, 72 is a position detection processing unit, and 73 is a signal processing unit. Further, in FIG. 2, reference numeral 81 is a brain wave signal pattern storage unit in the brain wave processing unit 71 in FIG. 1, reference numeral 82 is operation information (control signal) versus brain wave pattern storage unit (storage unit) in the brain wave processing unit 71, and 8
Reference numeral 3 is a comparison processing unit (discriminating means) in the electroencephalogram processing unit 71. Although not shown in the figure, the data processing unit 4 is provided with a register for temporarily storing data to be processed and a pointer area required for data processing.

Next, the operation will be described. FIG. 3 is a flowchart showing the operation of the electroencephalogram registration process (or electroencephalogram learning process) executed by the data processing unit 4 of FIG. First, the registration menu is displayed on the display unit 9 (step ST1). In this registration menu, a message asking the user whether to register the EEG signal pattern requesting an image to be guided such as intersections and facilities, a key to enter a registration command when registering, and a rejection when not registering You will be prompted to specify the key to enter the command. Then, it is determined whether or not the registration command is input from the key input unit 1 (step ST2). When a registration command is input from the key input unit 1, a pointer m for designating a key for identifying a guidance facility and a pointer n for designating the number of operations (the maximum number of operations is "10", for example).
Are both set to "0" (step ST3). When the registration command is not input, that is, when the rejection command is input from the key input unit, this flow is ended and the process returns to the main flow (not shown).

In step ST3, the pointers m and n
After setting, the loop from step ST4 to step ST14 is repeatedly executed while incrementing these pointers. In step ST4, which is the starting point of the loop, a message for operating the key (m) corresponding to the guidance target designated by the pointer m is displayed on the display unit 9. For example, key (1) is an intersection, key (2) is a gas station, key (3) is a hotel, and key (4) is a convenience store. To do.

After that, the electroencephalogram signal S is detected (step ST5). Specifically, the electroencephalogram signal S detected by the electroencephalogram detection unit 5 and signal-processed by the electroencephalogram I / F 6 (for example, conversion processing from an analog signal to a digital signal) is taken into the electroencephalogram processing unit 71 and the pattern of the electroencephalogram signal is acquired. It is temporarily stored in the storage unit 81. Therefore, every time the key corresponding to the guidance target such as the intersection, the gas station, the hotel, or the convenience store is operated, the brain wave signal S of the image of the guidance target is temporarily stored.

Next, it is determined whether or not the key (m) has been operated (step ST6). When the key (m) has been operated, the pattern of the electroencephalogram signal temporarily stored in the electroencephalogram signal pattern storage unit 81 is set to the key ( An array of registers S (m,
n) is transferred (step ST7). Next, the value of n is incremented by "1" (step ST8), and it is determined whether or not the value of n is larger than the maximum value ("9" in this case) (step ST9). If the value of n is less than or equal to the maximum value, step ST that is the starting point of the loop
Then, the process moves to step 4, and a message prompting the user to operate the same key (m) is displayed again.

When the value of n becomes larger than the maximum value in step ST9, that is, when the number of operations of the same key (m) reaches the maximum value (predetermined number of times), the value of the register corresponding to that key (m) is changed. Array S (m, 0) to S
The pattern (electroencephalogram pattern) of the electroencephalogram signal stored in (m, n) is collated and analyzed (step ST10). As a result of the analysis, (n + 1) stored (10 in this case)
It is determined whether the electroencephalogram pattern of is a constant pattern (step ST11). If the pattern is a fixed pattern, the electroencephalogram pattern is registered in the operation information versus electroencephalogram pattern storage unit 82 as a control signal for key (m) operation (step ST12). That is, it is registered as a control signal for displaying the image of each guidance target.

After the registration processing in step ST12, or if the electroencephalogram pattern is not a constant pattern in step ST11, the value of m is incremented by "1" to specify the next key (step ST13). .
That is, when the electroencephalogram pattern is not a fixed pattern, the next key is designated without registering that key (m). Next, it is determined whether or not the incremented value of m is larger than the maximum value (the total number of guidance targets to be registered) (step ST14). If the value of m is less than or equal to the maximum value, the process proceeds to step ST4, which is the starting point of the loop, and a message prompting the user to operate the next key (m) to be registered is displayed.

When the value of m becomes larger than the maximum value in step ST14, that is, when the operation of (n + 1) times is completed for all the guidance objects to be registered, the flow of this registration processing is ended and the main processing is terminated. Return to flow. As a result, the control signal, which is the operation information of each key, and the electroencephalogram pattern when the image of the guidance target is displayed by operating the key correspond to each other, and the operation information versus electroencephalogram pattern storage unit 82.
Is registered (stored) in. In this way, the brain wave learning process of pre-storing the brain wave signal pattern for each user, which is the target of detecting the brain wave signal, is performed, and the image display of the actual navigation guidance target is controlled using the user's brain wave signal.

As a pre-process of this registration process, an average human electroencephalogram pattern corresponding to each guidance target is prestored in the operation information / electroencephalogram pattern storage unit 82 as a default, and the default electroencephalogram pattern and the user are stored. May be analyzed by collating with the electroencephalogram pattern when the key is operated.

Alternatively, as a modified example of this embodiment, a message for operating an arbitrary key is displayed, and after the key is operated, the names (or illustrations) of a plurality of guidance targets are sequentially displayed, or , The names (or illustrations) of multiple guidance targets are displayed at the same time, and the display status (display color, display shape, etc.) is changed for each guidance target and displayed, and a guidance target different from the entered guidance target is displayed. "Negative" EEG pattern when displayed (for example, "Sorrow" EEG pattern), "Affirmative" EEG pattern when the input target is displayed (for example, "Pleasure" EEG pattern), current "Display change" EEG pattern that requires a screen different from the display screen (for example, "anger / stress" EEG pattern), "satisfaction" EEG pattern satisfying the current display screen (example If analyzes and EEG patterns) of the "relaxed", may be registered in certain brain wave pattern operation information versus brain wave pattern storage unit 82.

The data processing unit 4 of FIG.
To constantly input the vehicle position information by GPS and the vehicle speed information by the speed sensor to the arithmetic processing unit 7.
Further, the map data of various scales stored in the data storage unit 3 are selectively read out and input to the arithmetic processing unit 7. Then, based on the vehicle position information, the vehicle speed information, and the map data, the position detection processing unit 72 calculates data indicating the traveling state of the vehicle.

FIG. 4 is a flowchart showing the operation of the navigation processing using the electroencephalogram signal, which is executed by the data processing unit 4 of FIG. In this case, the operation is an example in which the user requests the image display of the intersection. In FIG. 5, it is determined whether or not an electroencephalogram signal is detected while the vehicle 101 is traveling on the road 102, which is the traveling route (step ST21). That is, it is determined whether or not the electroencephalogram signal detected by the electroencephalogram detection unit 5 has been signal-processed by the electroencephalogram I / F 6 and input to the electroencephalogram processing unit 71. When an electroencephalogram signal is detected, it is temporarily stored in the electroencephalogram signal pattern storage unit 81 of the electroencephalogram processing unit 71. At this time, the display unit 9
The image shown in FIG. 6 is displayed on.

Next, a recognition pattern, that is, a recognized electroencephalogram pattern is created from the electroencephalogram signal stored in the electroencephalogram signal pattern storage unit 81 (step ST22). Next, in the comparison processing unit 83, the recognition pattern created and stored in the EEG signal pattern storage unit 81 is compared with the EEG pattern previously stored in the operation information versus EEG pattern storage unit 82 by the EEG registration processing in FIG. (Step ST2
3). Then, it is determined whether or not the stored electroencephalogram pattern is the same as the recognition pattern (step ST2).
4). If there is the same thing, signal processing is performed to calculate the positional relationship between the point A at the intersection corresponding to the stored brain wave pattern and the current point B of the vehicle 101 input from the sensor input unit 2 (step ST25). ).

Then, it is determined whether or not the intersection of the road 102 on which the host vehicle 101 is traveling and the other road 103 is located at a point A of the traveling route within a predetermined range from the point B of the host vehicle 101 ( Step ST26). If an intersection corresponding to the recognition pattern is present at point A on the travel route,
The comparison processing unit 83 generates a control approval signal and sends it to the drawing processing unit and the drawing RAM 8. Drawing processing unit and drawing RA
M8 selects the intersection information of the point A, that is, the image information of the intersection from the data storage unit 3 and displays it on the display unit 9 as shown in FIG. 7 (step ST27). After that, the process proceeds to step ST21 and the detection process of the next electroencephalogram signal is performed.

In step ST26, if the intersection does not exist at the point A of the traveling route within the predetermined range from the point B of the own vehicle, for example, the intersection corresponding to the recognition pattern becomes the point C where the road 103 and the road 104 intersect. If it exists, the own vehicle 101 does not pass through the intersection requiring the image display of the user's brain wave, so that the user's thinking is wrong. In this case, the image of the intersection at the point C is not displayed.

As in the above-described modified example, the "negative" EEG pattern, the "affirmative" EEG pattern, the "display change" EEG pattern, the "satisfaction" EEG pattern, and the like are stored in the operation information / electroencephalogram pattern storage unit 82. When the detected recognition pattern corresponds to the “angry / stress” EEG pattern, that is, the “display change” EEG pattern, the case of FIG.
The name or illustration of the guidance target is sequentially displayed on the operation key icon of. Or, display multiple operation key icons corresponding to the names or illustrations of multiple guidance targets at the same time,
The display state (display color, display shape, etc.) of each operation key icon is changed sequentially. Then, when the operation key icon of "intersection" is displayed or the display state is changed,
When the "affirmative" electroencephalogram pattern is detected, as shown in FIG. 7, the image information of the intersection at the point A is selected from the data storage unit 3 and displayed on the display unit 9.

As described above, according to the first embodiment, the image display of the guidance target is controlled by the control signal corresponding to the detected brain wave pattern, that is, the operation information.
There is an effect that the image of the navigation target can be freely displayed by using the brain wave signal.

In this case, the operation information-to-electroencephalogram pattern storage unit 82 in the data processing unit 4 stores in advance the electroencephalogram signal pattern for each user who uses the navigation device, that is, the user whose electroencephalogram signal is to be detected. Therefore, there is an effect that the image display of the navigation guidance target can be controlled in an optimal state for the user.

In this case, the operation information-to-electroencephalogram pattern storage unit 82 displays the image of the intersection when the user desires, regardless of the intersection display program for navigation, because the guidance target displayed on the display means is the intersection. Can be displayed.

Further, in this case, the operation information-to-electroencephalogram pattern storage unit 82 is the facility desired to be displayed by the user regardless of the navigation facility display program because the guidance target displayed on the display means is a facility such as a hotel or a convenience store. There is an effect that the image of the desired facility can be displayed sometimes.

Further, when the information of a specific guidance target is displayed on the display unit 9 as in the above modification, the brain wave signal indicating that the image display of the guidance target is affirmative is an electroencephalogram detection unit 5.
When it is detected, the comparison processing unit 83 generates the control approval signal, so that there is an effect that the image display of the navigation guidance target can be controlled by the electroencephalogram signal which is relatively easy to detect.

In the case of this modification, the pattern of the brain wave signal stored in the operation information versus brain wave pattern storage unit 82 is used as a control signal for selecting a specific icon from a plurality of icons sequentially displayed on the display unit 9. Since it corresponds,
There is an effect that it is possible to reliably control the image display of the guidance target requested by the user.

Further, in this case, the pattern of the brain wave signal stored in the operation information-to-electroencephalogram pattern storage unit 82 is such that the display states (display color, display shape, etc.) of a plurality of icons simultaneously displayed on the display unit 9 are displayed. Since it corresponds to the control signal for selecting a specific icon when changing sequentially for each icon, it is possible to reliably control the image display of the guidance target requested by the user.

Embodiment 2. In FIG. 8, reference numeral 10 is a voice recognition processing unit (voice recognition means). The other components are the same as the components in the first embodiment shown in FIG. 1, and therefore, they are represented by the same reference numerals and the description thereof will be omitted. Further, in FIG. 9, 84 is a voice recognition signal processing unit in the signal processing unit 73 of FIG. 8, and 85 is a comparison signal processing unit in the signal processing unit 73. The other components are the same as those in the first embodiment shown in FIG. 2, and therefore, they are represented by the same reference numerals and the description thereof will be omitted.

Next, the operation will be described. Embodiment 2
In the above, the electroencephalogram registration process (electroencephalogram learning process) by the data processing unit 4 is the same as the process in the first embodiment shown in FIG. Further, the modification is also the same as the processing in the first embodiment. FIG. 10 is a flowchart showing the operation of navigation processing using an electroencephalogram signal, which is executed by the data processing unit 4 of FIG. In the figure,
Each step other than step ST28 and step ST29 is the same as each step in the first embodiment shown in FIG.

That is, the operation of the navigation processing according to the second embodiment is the same as the operation of the navigation processing according to the first embodiment except that step ST28 and step ST25 are provided between step ST24 and step ST25.
It has a configuration in which 29 processes are added. Therefore, the operations in steps ST28 and ST29 will be mainly described, and the description overlapping with the first embodiment will be omitted.
The voice recognition processing unit 10 in FIG. 8 performs voice recognition processing by a known technique. For example, the pattern of the voice signal input by the user is compared with the standard voice signal pattern stored in the internal memory in advance, and the standard voice signal having the highest matching is selected to select the data processing unit. Enter in 4.

When the recognition pattern based on the electroencephalogram signal in step ST24 is the same as the stored electroencephalogram pattern in step ST24, the data processing part 4 detects the voice signal (step ST28), and the voice recognition signal processing part 84 in FIG. At that time, the voice signal is converted into a voice pattern format and input to the comparison processing unit 83. The comparison processing unit 83 compares the voice pattern with the recognition pattern based on the electroencephalogram signal, and
It is determined whether or not the two patterns have the same control signal (operation information) (step ST29). If they are the same, a control approval signal is generated and sent to the comparison signal processing unit 85. Upon receiving the control approval signal, the comparison signal processing unit 85 sends a control signal (operation information) corresponding to the brain wave pattern stored in the operation signal versus brain wave pattern storage unit 82 to the drawing processing unit and the drawing RAM 8. The drawing processing unit and the drawing RAM 8 read the image of the intersection from the data storage unit 3 according to the control signal and display the image on the display unit 9.
Is displayed (step ST27).

As described above, according to the second embodiment, the comparison processing unit 83 of the data processing unit 4 includes the electroencephalogram detection unit 5
When the pattern of the electroencephalogram signal is detected by, when the detected pattern of the electroencephalogram signal corresponds to the stored control signal, the voice recognition signal obtained from the voice recognition processing unit 10 becomes the pattern of the electroencephalogram signal. Since the control approval signal is generated when it further corresponds to the corresponding control signal, it is possible to extremely reliably control the image display of the navigation target by complementing the user's brain wave command with the voice command. effective.

[0050]

As described above, according to the present invention, a navigation device using an electroencephalogram signal is controlled to display an electroencephalogram signal pattern requesting an image of an arbitrary guidance target for navigation and the image of the guidance target. A storage unit that stores the signals in association with each other; a detection unit that detects an electroencephalogram signal requesting at least one image of the guidance target; and a pattern of the electroencephalogram signal detected by the detection unit and the storage unit. If there is a correspondence with the image display control signal, it is determined whether or not the guidance target related to the request exists within a predetermined range of the travel route of the own vehicle, and if there is, a control approval signal is sent. When the discrimination means is generated and the control approval signal is generated by the discrimination means, a control signal for image display corresponding to the pattern of the detected electroencephalogram signal is sent to a predetermined display means. To since it is configured to have a display control means for displaying an image of the guide target in accordance with the image display, there is an effect that it is possible to freely display an image of the guidance object navigation using EEG signals.

According to the present invention, the navigation device using the electroencephalogram signal is configured such that the storage means prestores the electroencephalogram signal pattern for each user who is the subject of detection of the electroencephalogram signal. There is an effect that the image display of the navigation target can be controlled in the optimum state.

According to the present invention, the navigation device using the electroencephalogram signal is configured so that the guidance target displayed on the display means is an intersection. Therefore, regardless of the intersection display program for navigation, when the user desires it. There is an effect that the image of the intersection can be displayed.

According to the present invention, the navigation device using the electroencephalogram signal is constructed such that the guidance target displayed on the display means is the facility. Therefore, regardless of the facility display program for navigation, when the user desires There is an effect that can display the image of the facility.

According to the present invention, in the navigation device using the electroencephalogram signal, when the information of the specific guidance object is displayed on the display means, the electroencephalogram signal indicating that the image display of the guidance object is positive is detected by the detection means. When it is detected, the determination means is configured to generate the control approval signal, so that there is an effect that the image display of the navigation guidance target can be controlled using the brain waves that are relatively easy to detect.

According to the present invention, in the navigation device using an electroencephalogram signal, when the discriminating means detects the electroencephalogram signal pattern by the detecting means, the voice recognition signal obtained from the predetermined voice recognizing means is the electroencephalogram signal. Since it is configured to generate the control approval signal when it further corresponds to the control signal corresponding to the pattern, by supplementing the command by the user's brain waves with the command by voice, it is possible to display the image of the navigation guidance target very reliably. The effect is that it can be controlled.

According to the present invention, in the navigation device using the electroencephalogram signal, the pattern of the electroencephalogram signal stored in the storage means is a control signal for selecting a specific icon from a plurality of icons sequentially displayed on the display means. The image display of the guidance target requested by the user can be reliably controlled.

According to the present invention, in the navigation device using the electroencephalogram signal, the pattern of the electroencephalogram signal stored in the storage means is such that the display states of a plurality of icons simultaneously displayed on the display means are sequentially displayed for each icon. Since it is configured to correspond to the control signal for selecting a specific icon when changing, it is possible to reliably control the image display of the guidance target requested by the user.

According to the present invention, a navigation control method using an electroencephalogram signal is performed by associating a pattern of an electroencephalogram signal requesting an image of an arbitrary guidance object for navigation with a control signal for displaying the image of the guidance object. At least a first step of storing in a predetermined storage means;
Second detection of EEG signals requesting images of two guidance objects
And the pattern of the electroencephalogram signal detected by the second step and the control signal for image display stored in the storage means correspond to each other, the guidance target related to the request is the traveling route of the own vehicle. A third step of determining whether or not it exists within a predetermined range, and generating a control approval signal when it exists, and a detected electroencephalogram when the control approval signal is generated by the third step An image display control signal corresponding to the signal pattern is sent to a predetermined display means to display an image of a guidance target according to the image display.
Since it is configured so as to have the steps of and, it is possible to freely display the image of the navigation target using the electroencephalogram signal.

According to the present invention, in the navigation control method using the electroencephalogram signal, in the first step, the electroencephalogram signal pattern for each user who is the subject of detection of the electroencephalogram signal is stored in advance in a predetermined storage means. Since it is configured to have such an effect, there is an effect that the image display of the navigation guidance target can be controlled in an optimal state for the user.

According to the present invention, the navigation control method using the electroencephalogram signal is configured such that the guidance target displayed on the display means is an intersection, so that the user desires regardless of the intersection display program for navigation. There is an effect that an image of an intersection can sometimes be displayed.

According to the present invention, the navigation control method using the electroencephalogram signal is configured such that the guidance target displayed on the display means is the facility, so that the user desires regardless of the facility display program for navigation. There is an effect that an image of the facility can sometimes be displayed.

According to the present invention, in the navigation control method using the electroencephalogram signal, when the information of the specific guidance target is displayed on the display means, the electroencephalogram signal indicating that the image display of the guidance target is affirmative is given. When it is detected by the second step, the third step is configured to generate the control approval signal. Therefore, there is an effect that the image display of the navigation target can be controlled by using the brain waves which are relatively easy to detect. is there.

According to the present invention, in the navigation control method using the brain wave signal, the third step is the voice recognition obtained from the predetermined voice recognition means when the pattern of the brain wave signal is detected by the first step. Since the control approval signal is generated when the signal further corresponds to the control signal corresponding to the pattern of the electroencephalogram signal, by complementing the command by the user's electroencephalogram with the command by voice,
There is an effect that it is possible to control the image display of the navigation guidance target very reliably.

According to the present invention, the navigation control method using the electroencephalogram signal is controlled such that the pattern of the electroencephalogram signal stored in the storage means selects a specific icon from a plurality of icons sequentially displayed on the display means. Since it is configured to be compatible with the signal, there is an effect that the image display of the guidance target requested by the user can be surely controlled.

According to the present invention, a navigation control method using an electroencephalogram signal is provided, in which the pattern of the electroencephalogram signal stored in the storage means is displayed on the display means at the same time as the display state of a plurality of icons for each icon. Since it is configured to correspond to the control signal for selecting a specific icon when changing sequentially, it is possible to reliably control the image display of the guidance target requested by the user.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a navigation device according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of an electroencephalogram processing unit in FIG.

FIG. 3 is a flowchart showing an operation of an electroencephalogram registration process according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing an operation of a control method using an electroencephalogram signal according to the first embodiment of the present invention.

FIG. 5 is a diagram showing a positional relationship between a host vehicle and an intersection in the first embodiment of the present invention.

FIG. 6 is a diagram showing an image displayed on the display unit in the first embodiment of the present invention.

FIG. 7 is a diagram showing an image of an intersection requested by an electroencephalogram signal in the first embodiment of the present invention.

FIG. 8 is a block diagram showing a configuration of a navigation device according to a second embodiment of the present invention.

9 is a block diagram showing an internal configuration of an electroencephalogram processing unit in FIG.

FIG. 10 is a flowchart showing an operation of a control method using an electroencephalogram signal according to the second embodiment of the present invention.

[Explanation of symbols]

1 key input unit, 2 sensor input unit, 3 data storage unit, 4 data processing unit, 5 electroencephalogram detection unit (detection means),
6 electroencephalogram interface, 7 arithmetic processing section, 8 drawing processing section and drawing RAM (display control means), 9 display section (display means), 10 voice recognition processing section (voice recognition means), 71
Electroencephalogram processing unit, 72 Position detection processing unit, 73 Signal processing unit, 81 Electroencephalogram signal pattern storage unit, 82 Operation information versus electroencephalogram pattern storage unit (storage unit), 83 Comparison processing unit (discrimination unit), 84 Voice recognition signal processing Section, 85 comparison signal processing section.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G09B 29/10 A61B 5/04 320Z 322 F term (reference) 2C032 HB03 HB22 HC08 HC14 HC16 HC22 HC26 HD03 HD07 HD30 2F029 AA01 AB07 AB13 AC02 AC09 AC18 4C027 AA03 KK03 KK05 5H180 AA01 CC12 CC27 FF05 FF22 FF25 FF33 FF40

Claims (16)

[Claims] 1. A storage unit for storing a pattern of an electroencephalogram signal requesting an image of an arbitrary guidance target for navigation and a control signal for displaying the image of the guidance target in association with each other, and at least one of the guidance targets. If the detection means for detecting the electroencephalogram signal requesting the image, and the pattern of the electroencephalogram signal detected by the detection means and the control signal for image display stored in the storage means correspond, it relates to the request. Judgment means for judging whether or not the guidance target exists within a predetermined range of the traveling route of the own vehicle, and if it exists, judgment means for generating a control approval signal, and the control approval signal is generated by the judgment means. At this time, a control signal for image display corresponding to the detected electroencephalogram signal pattern is sent to a predetermined display means to display the image of the guidance target related to the image display. A navigation device using an electroencephalogram signal, comprising: display control means. 2. The navigation device using an electroencephalogram signal according to claim 1, wherein the storage means stores in advance a pattern of the electroencephalogram signal for each user who is an electroencephalogram signal detection target. 3. The navigation device using an electroencephalogram signal according to claim 1, wherein the guidance target displayed on the display means is an intersection. 4. The navigation device using an electroencephalogram signal according to claim 1, wherein the guidance target displayed on the display means is a facility. 5. When the information of a specific guidance target is displayed on the display means, and when an electroencephalogram signal to affirm the image display of the guidance target is detected by the detection means,
The navigation device using an electroencephalogram signal according to any one of claims 1 to 4, wherein the determination means generates a control approval signal. 6. The discriminating means, when a voice recognition signal obtained from a predetermined voice recognizing means when the detecting means detects the electroencephalogram signal pattern further corresponds to a control signal corresponding to the brain wave signal pattern. A navigation device using an electroencephalogram signal according to any one of claims 1 to 5, wherein a control approval signal is generated. 7. The electroencephalogram signal pattern stored in the storage means corresponds to a control signal for selecting a specific icon from a plurality of icons sequentially displayed on the display means. 7. A control device using the electroencephalogram signal according to claim 6. 8. The electroencephalogram signal pattern stored in the storage means is a control signal for selecting a specific icon when the display states of a plurality of icons simultaneously displayed on the display means sequentially change for each icon. The control device using the electroencephalogram signal according to any one of claims 1 to 6, which is compatible. 9. A first step of storing a pattern of an electroencephalogram signal requesting an image of an arbitrary guidance target for navigation and a control signal for displaying the image of the guidance target in a predetermined storage means in association with each other, at least. A second step of detecting an electroencephalogram signal requesting an image of one guidance target, a pattern of the electroencephalogram signal detected by the second step, and an image display control signal stored in the storage means correspond to each other. In the case of doing so, it is determined whether or not the guidance target related to the request exists within a predetermined range of the travel route of the own vehicle, and if it exists, a third step of generating a control approval signal, When the control approval signal is generated in the third step, the control signal for image display corresponding to the pattern of the detected electroencephalogram signal is sent to a predetermined display means. And a fourth step of displaying an image of a guidance target related to the image display of, and a navigation control method using an electroencephalogram signal. 10. The navigation control method using an electroencephalogram signal according to claim 9, wherein in the first step, an electroencephalogram signal pattern for each user as an electroencephalogram signal detection target is stored in advance in a storage means. . 11. The navigation control method using an electroencephalogram signal according to claim 9, wherein the guidance target displayed on the display means is an intersection. 12. The navigation control method using an electroencephalogram signal according to claim 9 or 10, wherein the guidance target displayed on the display means is a facility. 13. When information of a specific guidance target is displayed on the display means, and when an electroencephalogram signal to affirm the image display of the guidance target is detected in the second step, the third step Generates a control approval signal. 13. The navigation control method using an electroencephalogram signal according to claim 9, wherein the control approval signal is generated. 14. In the third step, a voice recognition signal obtained from a predetermined voice recognition means when the pattern of the electroencephalogram signal is detected by the first step is further converted into a control signal corresponding to the pattern of the electroencephalogram signal. The navigation control method using an electroencephalogram signal according to any one of claims 9 to 13, characterized in that a control approval signal is generated in a corresponding case. 15. The electroencephalogram signal pattern stored in the storage means corresponds to a control signal for selecting a specific icon from a plurality of icons sequentially displayed on the display means. 15. A navigation control method using an electroencephalogram signal according to claim 14. 16. The pattern of the electroencephalogram signal stored in the storage means is a control signal for selecting a specific icon when the display states of a plurality of icons simultaneously displayed on the display means sequentially change for each icon. The navigation control method using an electroencephalogram signal according to any one of claims 9 to 14, which is compatible.