WO2016031152A1

WO2016031152A1 - Input interface for vehicle

Info

Publication number: WO2016031152A1
Application number: PCT/JP2015/003975
Authority: WO
Inventors: 重明西橋; 豪之藤本
Original assignee: 株式会社デンソー
Priority date: 2014-08-29
Filing date: 2015-08-07
Publication date: 2016-03-03
Also published as: JP2016051288A

Abstract

　The present invention is equipped with a touch pad (30) provided with an aerial detectable area capable of detecting the hand or finger of an operator in the air, and a display control device (40) for controlling, in accordance with input to the touch pad, the image that is displayed on a display device, the touch pad estimating the degree of proximity to the hand or finger of an operator, the position of the hand or finger, and whether there is contact with the hand or finger, the display control device determining whether the hand or finger performed a specific operation on the touch panel, and, when it is determined that the specific operation was performed, causing the image displayed on the display device to be operated on in accordance with the motion of the hand or finger, even when the hand or finger is not in contact with the touch pad.

Description

Vehicle input interface

Cross-reference of related applications

This application is based on Japanese Patent Application No. 2014-175637 filed on August 29, 2014, the contents of which are incorporated herein by reference.

This relates to a vehicle input interface having an aerial detectable area that can detect an operator's hand or finger in the air.

There is known an input interface for a vehicle having an air-detectable area in which an operator's hand or finger can be detected in the air (for example, Patent Document 1).

JP 2011-118857 A

入力 Input to in-vehicle devices by hand or finger movement detected in the air is convenient, but there is a concern that it may cause erroneous operations. In order to suppress erroneous operations, it has been studied to limit the area where the aerial operation can be performed to a narrow area, but there is a problem that the convenience of the aerial operation cannot be fully enjoyed.

The present disclosure has been made in view of the above points, and an object of the present disclosure is to provide a vehicle input interface that can suppress the induction of an erroneous operation without significantly impairing the convenience of the aerial operation.

An input interface for a vehicle according to an aspect of the present disclosure is an interface for operating an image displayed on a display device arranged in a vehicle interior, and can detect an operator's hand or finger in the air. A touch pad having a region and a display control device that controls an image displayed on the display device based on an input to the touch pad, and the touch pad has a degree of proximity to an operator's hand or finger A calculation device that estimates the position of the hand or finger and the presence or absence of contact with the hand or finger, the display control device determines whether or not the hand or finger has performed a specific operation on the touch pad, When it is determined that an operation has been performed, an image displayed on the display device is operated according to the movement of the hand or finger even when the hand or finger is not in contact with the touch pad.

As a result, the screen control according to the movement of the operator's hand or finger detected in the air is not performed until the display control device determines that the hand or finger has performed a specific action, thereby preventing an erroneous operation unintended by the operator. it can.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. The drawing
FIG. 1 is a diagram illustrating an arrangement of a vehicle input interface in a vehicle interior according to an embodiment of the present disclosure; FIG. 2 is a perspective view for explaining the touchpad in detail. FIG. 3 is a cross-sectional view showing the range of the aerial detectable region of the touchpad, FIG. 4 is a flowchart showing the control executed by the touchpad arithmetic unit, FIG. 5 is a flowchart illustrating the control performed by the display control device based on a signal output from the arithmetic device of the touch pad, FIG. 6 is a diagram showing a display example of the display device during detection of each mode and specific operation.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In addition, the overlapping description may be abbreviate | omitted by attaching | subjecting the same code | symbol to the corresponding component in each embodiment. When only a part of the configuration in each embodiment is described, the configuration of the other embodiment described above can be applied to other portions of the configuration. Moreover, not only the combination of the structures specified in the description of each embodiment, but also the combination of a plurality of embodiments can be partially combined even if they are not explicitly shown unless there is a problem with the combination.

FIG. 1 is a diagram illustrating an arrangement of a vehicle input interface 10 in a vehicle cabin according to an embodiment of the present disclosure. The vehicle input interface 10 in this embodiment is for operating an image displayed on the display device 20, and includes a vehicle touch pad 30 and a display control device 40.

The display device 20 is a multi-function display disposed substantially at the center of the instrument panel 50 of the vehicle. The display device 20 is an operation screen of a vehicle air conditioner, radio, navigation device, audio, etc. (not shown), a rear camera image, and a plurality of cameras. It is also a general-purpose display device that displays an around view or the like based on a composite image.

The vehicle touch pad 30 includes an arithmetic device 80, and the arithmetic device 80 reads a signal related to the electrostatic capacitance from the electrostatic capacitance sensor panel 70 arranged below the design panel 60 shown in FIG. In accordance with predetermined rules, the degree of proximity to the operator's hand or finger, the position of the hand or finger, and the presence or absence of contact with the hand or finger are estimated to generate a two-dimensional coordinate signal or a three-dimensional coordinate signal, and display control is performed A signal is output to the device 40.

The display control device 40 switches various operation screens based on the two-dimensional signal and the three-dimensional signal from the arithmetic device 80 of the vehicular touchpad 30 and causes the display device 20 to display an image for inputting each function. Is.

Further, the display control device 40 is connected to a sound source 90 such as a speaker arranged directly or indirectly in the vehicle interior so that a notification sound can be generated from the sound source by a signal from the display control device 40. It is configured.

The vehicle touchpad 30 of this example is disposed in the vicinity of an armrest (not shown) between the driver seat and the passenger seat, and the design panel 60 is such that the palm of the driver is positioned exactly when the driver puts his arm on the armrest. Are arranged to be. The arithmetic device 80 and the display control device 40 are disposed inside the instrument panel 50 that is not visible from the passenger compartment.

The display device 20, the vehicle touch pad 30, the display control device 40, and the speaker 90 may be connected in any manner, may be connected via an in-vehicle network communication cable, or may be an individual cable. It may be connected or may be connected by wireless communication.

Next, the touch pad 30 in the present embodiment will be described in detail with reference to FIG. FIG. 2 is a perspective view of the touch pad 30 in the present embodiment. The design panel 60 is disposed on the surface of the housing where the capacitance sensor panel 70 is disposed. On the design panel 60, an operation detectable area 100 capable of detecting the approach, proximity, contact and position coordinates of an operating body such as an operator's hand or finger, and a decision input area for receiving an input by contact or pressing. 110 is color-coded to be easily understood by the driver.

In this embodiment, the input to the decision input area 110 is detected using the capacitance sensor panel 70. However, any method for detecting the presence or absence of the decision input may be used. A switch may be separately provided, or a determination input may be made based on the fact that the surface of the design panel 60 is double-tapped with an operator's finger in the operation detectable area 100.

FIG. 3 is a cross-sectional view showing a range of an aerial detectable region (RG) in which the approach, proximity, and contact of the operating body in the touch pad 30 shown in FIG. 2 can be detected. The computing device 80 of the touch pad 30 in this embodiment estimates the movement and shape of the operator's hand or finger within the aerial detectable region based on the electric charge stored in the capacitance sensor panel 70. Note that the detection means capable of detecting contact and proximity in the present disclosure is not limited to a capacitance sensor, and may be realized by combining, for example, a pressure-sensitive sensor and an imaging device such as an infrared camera.

Specifically, according to the flowchart shown in FIG. 4, the proximity of the operating body and the design panel 60, the degree of proximity, the position of the operating body with respect to the design panel 60, and the presence or absence of contact between the operating body and the design panel 60 are estimated.

First, in step S10, the electric charge stored in the capacitance sensor panel 70 is measured, and the process proceeds to step S11.

In step S11, the position estimated to be closest to the design panel 60 and the distance from the design panel 60 are estimated, and the process proceeds to step S12.

In step S12, it is determined from the distance between the operating tool and the design panel 60 whether or not the operating tool (that is, the operator's hand or finger) is in contact with the design panel 60. When step S12 is affirmation determination, it progresses to step S13.

In step S13, a two-dimensional coordinate signal indicating a coordinate point on the design panel at a position where the operating body and the design panel 60 are in contact is output to the display control device 40.

On the other hand, when step S12 is negative determination, it progresses to step S14, and the three-dimensional coordinate signal which shows the position of the operation body on the design panel 60 is output to the display control apparatus 40.

Next, control performed by the display control device 40 based on a signal output from the arithmetic device 80 of the touch pad 30 will be described with reference to FIG.

First, in step S20, it is determined whether or not a two-dimensional coordinate signal is received from the arithmetic device 80 of the touch pad 30. When step S20 is affirmation determination, it progresses to step S21.

In step S21, it is assumed that a touch input operation has been performed on the touch pad 30, and the display content of the display device 20 is set to the individual function setting mode shown on the right side of FIG. 6, and the individual function setting screen is set based on the two-dimensional coordinate signal. The cursor 130 displayed in 120 is operated to select one of the icons 140 displayed.

On the other hand, when step S20 is negative determination, it progresses to step S22 and it is determined whether the three-dimensional signal is received from the arithmetic unit 80. If step S22 is affirmative, the process proceeds to step S23.

In step S23, it is determined whether or not the three-dimensional signal is continuously received from the arithmetic unit 80 for a predetermined time (for example, 1 second). If step S23 is affirmative, the process proceeds to step S24.

In step S24, the display content of the display device 20 is set to the function selection mode shown in the center of FIG. In this function selection mode, names 150 representing the respective functions are arranged on the left and right at the top of the screen, and an operation screen 160 corresponding to the currently selected function is displayed at the approximate center of the screen. The currently selected operation screen 160 in this embodiment is a reduced display of the individual function setting screen 120. In this function selection mode, when the operating tool (MP) is close to the touch pad 30 and is moved away from the touch pad 30 in the left-right direction of the vehicle, the currently selected operation screen 160 is displayed on the operating tool. It is designed to scroll left and right to match the movement. The name 150 at the top of the screen is also highlighted 170 indicating the name corresponding to the selected function.

On the other hand, if step S23 is negative, the process proceeds to step S25. In step S <b> 25, it is determined whether at least one of the shape and movement of the operating tool corresponds to a “specific operation” stored in advance in a storage device (not shown) included in the display control device 40. When step S23 is affirmation determination, it progresses to step S24 mentioned above. Moreover, when this step S23 is negative determination, it returns to step S20.

Here, the “specific operation” will be described in more detail. For example, (1) the operator places his / her hand or finger on the touchpad 30 in a specific shape, and (2) the operator places his / her hand or finger on the touchpad 30 in a predetermined path. Moving, (3) the operator may leave the hand or finger on the touch pad 30 for a predetermined time or more. The display control device 40 makes an affirmative determination in step S25 when at least one or any combination of the specific operations is performed. The “specific operation” may be any as long as it is predetermined, and the operator may register an arbitrary operation as the “specific operation” in advance.

With the configuration described above, the screen control according to the movement of the operator's hand or finger detected in the air is not performed until the display control device determines that the hand or finger has performed a specific action. Incorrect operation can be suppressed.

Note that the display screen of the display device 20 shown on the left in FIG. 6 is an image that the display control device 40 displays on the display device 20 while the specific operation is being detected in step S25. A white arc 180 and a hatched arc 190 shown on the left display screen in FIG. 6 indicate the degree of completion of the specific operation on the display device when the hand or finger is performing the specific operation. For example, when an operation “create a peace sign with a finger and move it like drawing a circle” is predetermined as a “specific operation”, the peace sign mark 200 displayed on the left display screen in FIG. The arc 180 allows the operator to remember what the particular action was, and the hatched arc 190 can visually understand the degree of completion of the particular action. For this reason, it is possible to assist the operator to get used to performing a specific operation. In addition, when a specific operation is completed or is being completed, sound may be generated from the sound source 90 arranged in the passenger compartment.

As described above, the “specific action” determined by the display control device 40 may be “the hand or finger stays in the aerial detectable region for a predetermined time or longer”, or the shape of the hand or finger is determined by the arithmetic device 80. It may be estimated that “a hand or a finger has a predetermined shape”, or it may be considered that the “specific action” is performed when any one of these operations is detected.

Further, when the hand or finger is performing a specific action, the display control device 40 may cause the display device to display the degree of completion of the specific action. Thereby, the operator can confirm the progress degree of the specific operation for canceling the aerial operation by the display device, and can assist the operator to get used to the execution of the specific operation.

Further, when it is determined that the specific operation has been completed, the display control device 40 may generate sound from a sound source arranged in the vehicle interior.

Although the present disclosure has been described with reference to the embodiments, it is understood that the present disclosure is not limited to the embodiments and structures. The present disclosure includes various modifications and modifications within the equivalent range. In addition, various combinations and forms, as well as other combinations and forms including only one element, more or less, are within the scope and spirit of the present disclosure.

Claims

An input interface for a vehicle for operating an image displayed on a display device arranged in a vehicle interior,
A touchpad (30) having an air-detectable area capable of detecting an operator's hand or finger in the air;
A display control device (40) for controlling an image displayed on the display device based on an input to the touchpad,
The touchpad includes a computing device (80) that estimates the degree of proximity to an operator's hand or finger, the position of the hand or finger, and the presence or absence of contact with the hand or finger.
The display control device determines whether or not the hand or finger has performed a specific operation on the touch pad, and when determining that the specific operation has been performed, the hand or finger contacts the touch pad. An input interface for a vehicle that operates an image displayed on the display device in accordance with a movement of the hand or a finger even in a state in which it is not performed.
The vehicle input interface according to claim 1, wherein the specific action performed by the hand or finger is to stay in the aerial detectable region for a predetermined time or more.
Estimating the shape of the hand or finger present in the aerial detectable region by the arithmetic unit,
The vehicle input interface according to claim 1, wherein the display control device determines that the specific operation has been performed when the shape of the hand or finger is a predetermined shape.
4. The display control device according to claim 1, wherein, when the hand or the finger is performing the specific operation, the display control device causes the display device to display a degree of completion of the specific operation. 5. The vehicle input interface as described.
5. The vehicle input interface according to claim 1, wherein when the display control device determines that the specific operation is completed, the display control device generates a sound from a sound source arranged in the vehicle interior.