JP2010269756A - Information display device, information display method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information display device, an information display method and a program capable of performing the display control of a screen so that a driver is not required for paying attention at curving. <P>SOLUTION: The information display device includes a display means for displaying information; a one's own vehicle position information obtaining means for obtaining one's own vehicle position information; and a detection means for detecting a steering operation amount of a steering device. A computer of the information display device mounted to the vehicle which is constituted so as to be operable in steering by the steering device is functioned as a control means for determining whether or not the one's own vehicle intrudes to an intersection based on the one's own vehicle position information obtained by the one's own vehicle position information obtaining means, determining whether or not the steering operation amount detected by the detection means reaches a predetermined value or larger when it is determined that the one's own vehicle intrudes to the intersection, and erasing the display of the display means when it is determined that the detected steering operation amount reaches the predetermined value or larger. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an information display device, an information display method, and a program.

  As an information display device that displays information on a screen, for example, there is an in-vehicle navigation device. The navigation device displays a map around the current location of the host vehicle on the screen and superimposes and displays a current location mark indicating the current location of the host vehicle on the map. And the display of a screen is updated at any time with the change of the present location of the own vehicle.

  Further, when the departure point and the destination are set by the user, the navigation device searches for the optimum route from the departure point to the destination using the map data. Then, along with the current location mark, the optimum route is displayed on the screen.

  By the way, even if information such as a map is displayed on the screen, the driver does not always look at the screen. Usually, he concentrates on driving and looks at the front of the vehicle. Even when the optimum route is searched and guided to travel along the optimum route, the user is often not looking at the screen except when the current location of the vehicle is near the branch point.

Thus, for example, Patent Literature 1 discloses a technique for determining that the user is not looking at the screen of the information display device by detecting the user's line of sight, etc., and reducing the screen brightness to save power consumption. .
Specifically, a camera for recognizing the user's face and eyeballs and a device having advanced image recognition capability are prepared, and it is determined whether or not the line of sight is facing the screen.

JP 2008-292753 A

  Even when the driver is not looking at the screen of the information display device, for example, when looking forward while driving, if the driver has some movement on the screen, the driver may recognize it and check the screen. In that case, there is a case of causing an accident risk by gazing at the screen while driving.

  In addition, since the screen remains displayed when the vehicle approaches the intersection, the driver may be distracted and there is a risk of lack of attention. And if something happens, the response will be delayed, leading to an accident.

  The technique described in Patent Document 1 saves power consumption by reducing the brightness of the screen when the user is not looking at the screen, and does not prevent accidents.

  An object of the present invention is to provide an information display device, an information display method, and a program that can perform display control of a screen so that a driver is not distracted during a turn.

  The invention according to claim 1 is an information display device mounted on a vehicle configured to be capable of steering operation by a steering device, and is a display means for displaying information. Based on the vehicle position information acquired by the vehicle position information acquisition means for acquiring the vehicle position information, detection means for detecting the steering operation amount of the steering device, and the vehicle position information acquisition means. It is determined whether or not the vehicle has reached an intersection, and it is determined whether or not the steering operation amount detected by the detection means is greater than or equal to a predetermined value when it is determined that the vehicle has reached an intersection. And a control means for erasing the display of the display means when it is determined that the detected steering operation amount is equal to or greater than the predetermined value.

  According to a second aspect of the present invention, in the information display device according to the first aspect, the detection means is a steering angle sensor that detects a steering operation amount of a steering wheel.

  According to a third aspect of the present invention, in the information display device according to the first or second aspect, after the control unit erases the display of the display unit, the steering operation amount detected by the detection unit is predetermined. The display is resumed when it is determined that the value is less than the specified value.

  According to a fourth aspect of the present invention, in the information display device according to any one of the first to third aspects, the control unit performs the operation when a predetermined time elapses after erasing the display of the display unit. The display is resumed.

  The invention according to claim 5 is an information display method in an information display device mounted on a vehicle configured to be steerable by a steering device, the step of displaying information by a display means, and own vehicle position information The vehicle position information acquired by the vehicle position information acquisition unit by the step of acquiring the vehicle position information by the acquisition unit, the step of detecting the steering operation amount of the steering device by the detection unit, and the control unit. Whether or not the own vehicle has reached the intersection, and if it is determined that the own vehicle has reached the intersection, the steering operation amount detected by the detection means is greater than or equal to a predetermined value And a step of erasing the display of the display means when it is determined that the detected steering operation amount is equal to or greater than the predetermined value.

  The invention described in claim 6 comprises display means for displaying information, own vehicle position information acquisition means for acquiring own vehicle position information, and detection means for detecting a steering operation amount of a steering device, A computer of an information display device mounted on a vehicle configured to be steerable by the device is used to determine whether or not the vehicle has approached an intersection based on the vehicle position information acquired by the vehicle position information acquisition means. Determining whether or not the steering operation amount detected by the detection means is equal to or greater than a predetermined value when it is determined that the vehicle is approaching an intersection, and the detected steering operation amount is A program for causing the display unit to function as a control unit that erases display when it is determined that the predetermined value or more has been reached.

  ADVANTAGE OF THE INVENTION According to this invention, the information display apparatus, the information display method, and program which can perform display control of a screen can be provided so that a driver | operator may not be distracted at the time of a turn.

It is a block diagram which shows schematic structure of the navigation apparatus 100 which concerns on this embodiment. It is the flowchart shown about an example (display control process 1) of the display control process performed within the navigation apparatus 100 which concerns on this embodiment. It is the figure shown about the area A used as the application object of display control. It is the flowchart shown about an example (display control process 2) of the display control process performed within the navigation apparatus 100 which concerns on this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, the information display device according to the present invention is applied to a navigation device.

FIG. 1 is a block diagram illustrating a schematic configuration of a navigation device 100 according to the present embodiment.
As shown in FIG. 1, the navigation device 100 includes a display unit 1, an operation unit 2, an audio output unit 3, a storage unit 4, a current position detection unit 5, a steering angle sensor 6, and a control unit 7. , And is configured.

The display unit 1 includes a display such as an LCD (Liquid Crystal Display) or an organic EL (Electro Luminescence) display, for example, and an operation for detecting an operation (for example, pressing by a finger or a touch pen) on the display. A touch panel having a function as the unit 2 is placed.
Based on the display data (map data 41, etc.) output from the control unit 7, the display unit 1 displays a travel route guidance screen (for example, display information for navigation such as a map screen, icons, route guidance, etc.) The vehicle mark indicating the current position) and various setting screens are displayed.
The operation unit 2 includes an operation key and a touch panel configured integrally with the display unit 1. The operation unit 2 generates operation signals corresponding to these operations and outputs them to the control unit 7.

  The audio output unit 3 includes a D / A converter, an amplifier, a speaker, and the like, converts the audio data 42 output from the control unit 7 into an analog audio signal, and outputs the audio.

  The storage unit 4 is composed of, for example, a semiconductor memory, and stores map data 41, audio data 42, and the like. The map data 41 stores, for example, map information covering a wide area (corresponding to a plurality of scales), road information, various symbol information such as facilities, seas, and rivers. In addition, the voice data 42 stores, for example, message data including words and phrases necessary for route guidance in advance. The map data 41 and the audio data 42 may be a magnetic or optical recording medium such as a CD-ROM (Compact Disk ROM) or a DVD-ROM (Digital Versatile Disc ROM) that is detachably attached to the navigation device 100, You may make it acquire from the server apparatus connected via radio | wireless communication etc.

The current position detection unit 5 includes a GPS (Global Positioning System) module, an autonomous navigation unit, and the like, and has a function as own vehicle position information acquisition means for acquiring own vehicle position information.
The GPS module includes a GPS antenna (not shown). The GPS antenna receives GPS signals transmitted from a plurality of GPS satellites launched into a low earth orbit. The GPS antenna receives GPS signals transmitted from at least three GPS satellites, detects the absolute current position (latitude, longitude) of the vehicle based on the received GPS signals, and outputs the detected current position to the control unit 7. .
The autonomous navigation unit includes an angle sensor, a distance sensor, and the like. The angle sensor detects the angular velocity of the vehicle (the rotation angle in the horizontal direction per unit time) and calculates the amount of change in the moving direction. A distance sensor detects the pulse signal output according to rotation of a wheel, and calculates the moving amount | distance of a vehicle. The autonomous navigation unit calculates a relative position change of the vehicle based on the angular velocity signal and the vehicle speed pulse signal, and outputs the change to the control unit 7.

  The steering angle sensor 6 is attached to a steering device (steering wheel) (not shown), and is a sensor for detecting a steering angle when the steering wheel is steered. The steering angle information (steering operation amount) detected by the steering angle sensor 6 is output to the control unit 7.

The control unit 7 includes, for example, a CPU (Central Processing Unit) 71, a RAM (Random Access Memory) 72, a ROM (Read Only Memory) 73, and the like, and controls each unit of the navigation device 100.
The CPU 71 reads out a processing program stored in the ROM 73, develops it in the RAM 72, and executes it, thereby controlling the navigation device 100 as a whole.
The RAM 72 expands the processing program executed by the CPU 71 in the program storage area in the RAM 72, and stores the input data and the processing result generated when the processing program is executed in the data storage area.
The ROM 73 is constituted by a semiconductor memory, for example, and stores a processing program, data, and the like in advance. The ROM 73 stores, for example, a display control program for turning off the display of the display unit 1 while the vehicle is turning at an intersection.

  In addition, the control unit 7 sets the purpose set via the operation unit 2 from the current position of the vehicle based on the current position information acquired from the current position detection unit 5 and the map data 41 stored in the storage unit 4. Calculate the guide route to the ground. Then, a map screen for guiding to the guide route calculated using the map data 41 stored in the storage unit 4 is generated and displayed on the display unit 1.

  As described above, the navigation device 100 according to the present embodiment includes a display unit (display unit 1) for displaying information (travel route guidance screen) and a host vehicle position information acquisition unit (current position detection) for acquiring host vehicle position information. Part 5) and detection means (steering angle sensor 6) for detecting the steering operation amount of the steering device.

Further, the control unit 7 determines whether or not the own vehicle has reached the intersection based on the own vehicle position information acquired by the current position detection unit 5, and when it is determined that the own vehicle has reached the intersection It is determined whether or not the steering operation amount detected by the steering angle sensor 6 is equal to or greater than a predetermined value, and when it is determined that the detected steering operation amount is equal to or greater than a predetermined value, a display unit The display of 1 is deleted.
Hereinafter, display control of the display unit 1 in the navigation device 100 will be described with reference to FIGS.

(First embodiment)
FIG. 2 is a flowchart showing an example of the display control process (display control process 1) performed in the navigation device 100 according to the present embodiment. This display control process is realized by the CPU 71 executing a display control program stored in the ROM 73 when the power of the navigation device 100 is turned on.

  As shown in FIG. 2, in step S11, it is determined whether or not the vehicle has reached an intersection. This determination is made with reference to the map data stored in the storage unit 4 and the current position detected by the current position detection unit 5. If the vehicle has reached the intersection, the process proceeds to the next step S12. If the vehicle has not reached the intersection, the process of step S11 is repeated.

In step S12, it is determined whether the steering angle is equal to or greater than a predetermined angle. This determination is made with reference to the steering angle information detected by the steering angle sensor 6. The predetermined angle can be arbitrarily set. When the steering angle is equal to or greater than the predetermined angle, the process proceeds to the next step S13. When the steering angle is not equal to or greater than the predetermined angle, display control (display erasure) of the display unit 1 is not performed at the intersection. The process proceeds to step S11.
In step S13, the travel route guidance screen displayed on the display unit 1 is deleted.

In step S14, it is determined whether or not the steering angle is less than a predetermined angle. When the steering angle is less than the predetermined angle, the process proceeds to the next step S15. When the steering angle is not less than the predetermined angle, the process of step S14 is repeated.
In step S15, a travel route guidance screen is displayed. When the travel route guidance screen is displayed, the process proceeds to step S11, and the display control process is repeated every time an intersection is reached.

  As described above, the control unit 7 of the navigation device 100 according to the present embodiment determines whether or not the own vehicle has reached the intersection based on the own vehicle position information acquired by the current position detection unit 5, and the own vehicle It is determined whether or not the steering operation amount (steering angle) detected by the steering angle sensor 6 is equal to or greater than a predetermined value (predetermined angle) when it is determined that is approaching the intersection. When it is determined that the steering operation amount is equal to or greater than a predetermined value, the display on the display unit 1 is deleted. Further, after erasing the display on the display unit 1, the control unit 7 resumes the display when it is determined that the steering operation amount detected by the steering angle sensor 6 is less than a predetermined value.

Therefore, for example, as shown in FIG. 3, while the vehicle C is turning (section A in the figure), the travel route guidance screen is erased. Here, the section A is a section from when the steering angle becomes equal to or greater than a predetermined angle until the angle becomes less than the predetermined angle.
By doing so, when it is judged that it is dangerous for the driver to perform a visual recognition operation on the travel route guide screen, the travel route guide screen can be erased at an appropriate timing. That is, the display control of the display unit 1 can be performed so that the driver is not distracted at the time of turning.

  As a result, the driver can concentrate on driving the car without being distracted by the screen, thereby preventing an accident.

(Second Embodiment)
FIG. 4 is a flowchart illustrating an example of the display control process (display control process 2) performed in the navigation device 100 according to the present embodiment.
As shown in FIG. 4, in step S21, it is determined whether or not the vehicle has reached an intersection. If the vehicle has reached the intersection, the process proceeds to the next step S22. If the vehicle has not reached the intersection, the process of step S21 is repeated.

In step S22, it is determined whether or not the steering angle is equal to or greater than a predetermined angle. The predetermined angle can be arbitrarily set. When the steering angle is equal to or greater than the predetermined angle, the process proceeds to the next step S23. When the steering angle is not equal to or greater than the predetermined angle, the display control of the display unit 1 is not performed at the intersection, and the process proceeds to step S21. Transition.
In step S23, the travel route guidance screen displayed on the display unit 1 is deleted.

In step S24, it is determined whether or not a predetermined time has elapsed since the travel route guidance screen was deleted. The predetermined time can be arbitrarily set. If the predetermined time has elapsed since the travel route guidance screen was deleted, the process proceeds to the next step S25, and if the predetermined time has not elapsed, the process of step S24 is repeated.
In step S25, a travel route guidance screen is displayed. When the travel route guidance screen is displayed, the process proceeds to step S21, and the display control process is repeated every time an intersection is reached.

As described above, the control unit 7 of the navigation device 100 according to the present embodiment restarts the display when a predetermined time has elapsed since the travel route guidance screen was deleted.
As a result, the driver can concentrate on driving the car without being distracted by the screen, thereby preventing an accident.

  As mentioned above, although concretely demonstrated based on embodiment which concerns on this invention, this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary.

  For example, in the above-described embodiment, an intersection is illustrated as a scene to which display control is applied. However, a single road is applicable as long as it is a scene to bend.

  Moreover, you may make it carry out combining the above-mentioned 1st Embodiment and 2nd Embodiment. That is, after erasing the travel route guidance screen, when it is determined that the steering angle detected by the steering angle sensor 6 is less than a predetermined angle as a condition for displaying again, or a predetermined time has elapsed. In some cases, whichever is earlier can be used.

  In addition, the detailed configuration and detailed operation of each device constituting the navigation device 100 can be changed as appropriate without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 Navigation apparatus 1 Display part 2 Operation part 3 Audio | voice output part 4 Memory | storage part 41 Map data 42 Audio | voice data 5 Current position detection part 6 Steering angle sensor 7 Control part 71 CPU
72 RAM
73 ROM

Claims (6)

An information display device mounted on a vehicle configured to be steerable by a steering device,
Display means for displaying information;
Own vehicle position information acquisition means for acquiring own vehicle position information;
Detecting means for detecting a steering operation amount of the steering device;
Based on the own vehicle position information acquired by the own vehicle position information acquisition means, it is determined whether or not the own vehicle has reached an intersection, and is detected by the detection means when it is determined that the own vehicle has reached an intersection. It is determined whether or not the determined steering operation amount is equal to or greater than a predetermined value. When it is determined that the detected steering operation amount is equal to or greater than the predetermined value, the display of the display means is displayed. Control means for erasing;
An information display device comprising: The detection means includes
The information display device according to claim 1, wherein the information display device is a steering angle sensor that detects a steering operation amount of a steering wheel. The control means includes
3. The display is resumed when it is determined that the steering operation amount detected by the detection unit becomes less than a predetermined value after the display of the display unit is erased. 4. The information display device described in 1. The control means includes
The information display device according to any one of claims 1 to 3, wherein the display is resumed when a predetermined time elapses after the display of the display unit is erased. An information display method in an information display device mounted on a vehicle configured to be steerable by a steering device,
A step of displaying information by a display means;
A step of acquiring the vehicle position information by the vehicle position information acquisition means;
A step of detecting a steering operation amount of the steering device by a detecting means;
The control means determines whether or not the own vehicle has reached an intersection based on the own vehicle position information acquired by the own vehicle position information acquisition means, and if it is determined that the own vehicle has reached an intersection, It is determined whether or not the steering operation amount detected by the detection means is equal to or greater than a predetermined value, and the display is performed when it is determined that the detected steering operation amount is equal to or greater than the predetermined value. Erasing the display of means;
Information display method. A display means for displaying information; a host vehicle position information acquisition means for acquiring host vehicle position information; and a detection means for detecting a steering operation amount of the steering device, wherein the steering device can be used for steering operation. A computer of an information display device mounted on a vehicle,
Based on the own vehicle position information acquired by the own vehicle position information acquisition means, it is determined whether or not the own vehicle has reached an intersection, and is detected by the detection means when it is determined that the own vehicle has reached an intersection. It is determined whether or not the determined steering operation amount is equal to or greater than a predetermined value. When it is determined that the detected steering operation amount is equal to or greater than the predetermined value, the display of the display means is displayed. Control means to erase,
Program to function as.

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