JP2016115111A - Operation detection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation detection device in which an operability difference resulting from a difference in distance from an operator to a display device is suppressed.SOLUTION: An operation detection device 1 mainly includes: a touchpad 10 which detects trace operation on an operating face 100 with an operating finger; a distance estimation part 12 which estimates distance to a display device in which an operation target is displayed from an operator who operates the operating face 100; and a control part 14 which sets a ratio of a moving distance of the operating finger detected by the touchpad 10 and distance to move the operation target displayed on the display device based on the distance to the display device estimated by the distance estimation part 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an operation detection device.

  As a conventional technique, a mapping unit that performs mapping that associates a position on an operation surface operated by an operator with a position on a display screen on which an image is displayed based on graphics displayed on the display screen, and mapping Based on the result of the above, there is known an information processing apparatus including a detection unit that detects a corresponding point that is a position on a display screen corresponding to a position on an operation surface operated by an operator (for example, (See Patent Document 1).

  This information processing apparatus can be easily selected with a cursor or the like even if it is small and difficult to select, such as a link button on a Web page.

JP 2013-222426 A

  However, the conventional information processing apparatus may have a difference in operability felt by the operator depending on the distance from the operator to the display screen.

  Accordingly, an object of the present invention is to provide an operation detection device in which a difference in operability due to a difference in distance from an operator to a display device is suppressed.

  One aspect of the present invention is an operation detection unit that detects a tracing operation performed on an operation surface by a detection target, and a distance estimation that estimates a distance from an operator who operates the operation surface to a display device on which the operation target is displayed. And a setting unit for setting a ratio between the moving distance of the detection target detected by the operation detection unit and the distance for moving the operation target displayed on the display device based on the distance to the display device estimated by the distance estimation unit And an operation detection device.

  ADVANTAGE OF THE INVENTION According to this invention, the difference in operativity resulting from the difference in the distance from an operator to a display apparatus can be suppressed.

FIG. 1A is a schematic diagram of the inside of a vehicle on which the operation detection device according to the embodiment is mounted, and FIG. 1B is a block diagram illustrating an example of the operation detection device, and FIG. ) Is a block diagram illustrating an example of a vehicle communication system built in a vehicle. FIG. 2A is a schematic diagram for explaining the seat position of the driver's seat used when the distance estimation unit of the operation detection apparatus according to the embodiment estimates the distance, and FIG. It is the schematic of the display screen of a display apparatus, FIG.2 (c) is the schematic of the operation surface of a touchpad. FIG. 3A is a schematic diagram illustrating an example of an estimation table included in the distance estimation unit of the operation detection device according to the embodiment, and FIG. 3B is a schematic diagram illustrating an example of a ratio table included in the control unit. FIG. FIG. 4 is a flowchart illustrating an example of the operation of the operation detection device according to the embodiment.

(Summary of embodiment)
An operation detection device according to an embodiment estimates an operation detection unit that detects a tracing operation performed on an operation surface by a detection target, and a distance from an operator who operates the operation surface to a display device on which the operation target is displayed Based on the distance to the display device estimated by the distance estimation unit, the ratio between the movement distance of the detection target detected by the operation detection unit and the distance to move the operation target displayed on the display device is set And a setting unit.

[Embodiment]
(Overall configuration of the operation detection device 1)
FIG. 1A is a schematic diagram of the inside of a vehicle on which the operation detection device according to the embodiment is mounted, and FIG. 1B is a block diagram illustrating an example of the operation detection device, and FIG. ) Is a block diagram illustrating an example of a vehicle communication system built in a vehicle. Note that, in each drawing according to the embodiment described below, the ratio between figures may be different from the actual ratio. In FIGS. 1B and 1C, the flow of main signals and information is indicated by arrows.

  The operation detection device 1 is configured to be able to operate an electronic device that is electromagnetically connected, for example. As an example, the electronic device is electromagnetically connected to a vehicle LAN (Local Area Network) 801 to be described later.

  The operation detection device 1 is, for example, an instruction such as movement and selection of a cursor displayed on an electronic device, selection of a displayed icon, determination, dragging, dropping, etc. by an operation with a conductive pen or finger as a detection target. It is configured to be able to do. In this embodiment, an operation with a finger (operation finger) will be described.

  For example, as shown in FIG. 1A, the operation detection device 1 is disposed on a floor console 82 that extends between a driver seat 80 and a passenger seat 81 of the vehicle 8. The operation detection device 1 is configured to estimate the distance from the operator's eyes to the display device.

  Specifically, as shown in FIGS. 1A and 1B, the operation detection device 1 includes a touch pad 10 as an operation detection unit that detects a tracing operation performed on the operation surface 100 by an operation finger. Based on the distance estimation unit 12 that estimates the distance from the operator who operates the operation surface 100 to the display device on which the operation target is displayed, and the distance to the display device that the distance estimation unit 12 estimates, the touchpad 10 And a control unit 14 serving as a setting unit that sets a ratio between the movement distance of the operation finger detected by the user and the distance to move the operation target displayed on the display device.

  As an example, the display device is a display device 84. The display device 84 is disposed on the center console 83 as shown in FIG. The display device may be an auxiliary display device 86 disposed on the meter panel 85 shown in FIG. The display device 84 and the auxiliary display device 86 are, for example, liquid crystal monitors. The operation target is, for example, a cursor displayed on the display device 84.

(Configuration of touchpad 10)
FIG. 2A is a schematic diagram for explaining the seat position of the driver's seat used when the distance estimation unit of the operation detection apparatus according to the embodiment estimates the distance, and FIG. It is the schematic of the display screen of a display apparatus, FIG.2 (c) is the schematic of the operation surface of a touchpad.

  As the touch pad 10, for example, a touch pad of a resistance film method, an infrared method, a SAW (Surface Acoustic Wave) method, a capacitance method, or the like can be used. The touch pad 10 according to the present embodiment is a capacitive touch pad.

In the touch pad 10, an xy coordinate system is set with the upper left of the operation surface 100 as the origin, the x-axis in the left-right direction and the y-axis in the up-down direction on the paper surface of FIG. Touch pad 10, the coordinates of the detection points detected the operation, this is calculated as the xy coordinate system of coordinates, and is configured to output to the control unit 14 the information of the calculated coordinates as the detection information S _1.

  Here, the tracing operation indicates an operation in which the operating finger moves while contacting the operation surface 100, unlike an operation of paying the operation surface 100 such as a flick operation. In the present embodiment, the slide operation is included in the tracing operation.

(Configuration of distance estimation unit 12)
FIG. 3A is a schematic diagram illustrating an example of an estimation table included in the distance estimation unit of the operation detection device according to the embodiment, and FIG. 3B is a schematic diagram illustrating an example of a ratio table included in the control unit. FIG.

  The distance estimation unit 12 is configured to estimate the distance to the display device 84 based on the distance between the seat on which the operator is seated and the display device 84. The distance estimation unit 12 has an estimation table 120 as a table that associates the position of the seat that moves by adjustment and the distance of the display device 84, and corresponds to the acquired position of the seat based on the estimation table 120. The distance to the display device 84 is estimated. The seat is a driver's seat 80 as an example.

The distance estimation unit 12, as shown in FIG. 1 (b), to obtain the sheet information S ₂ is an information of the position of the driver's seat 80. This sheet information S _2, includes information about the seat position of the driver's seat 80 shown in FIG. 2 (a). As an example, the seat position of the driver's seat 80 has seven stages. Accordingly, the seat cushion 80b of the driver's seat 80 moves in seven stages along the rails arranged on the vehicle 8.

As an example, the position of the driver seat 80 can be adjusted by a seat adjusting device 87 as shown in FIG. The seat adjustment device 87 includes, for example, the above-described rail, a sensor that detects the seat position, and the like. Seat adjustment device 87 detects whether the seat position of the seat cushion 80b is in what stage of the 7 stage, and outputs it as the sheet information S _2. This seat position is based on a reference position 80c defined on the seat cushion 80b. Further, the sheet position is not limited to seven stages and is arbitrary.

  As a modification, the seat adjustment device 87 includes an actuator that drives the seat cushion 80b and a storage unit that stores the driving position, and reads the driving position from the storage unit based on the operation of the operator. The configuration may be such that the seat cushion 80b, that is, the driver's seat 80 is moved. Further, the seat cushion 80b may be configured to be able to move continuously instead of stepwise, for example.

Operator 9 distance L ₁ to the display device 84 from, as shown in FIG. 2 (a), can be estimated at a position of the seat cushion 80b relative to the floor 88 of the vehicle 8. Accordingly, as shown in FIG. 3A, the distance estimation unit 12 has an estimated distance a at the first stage, an estimated distance b at the second stage, an estimated distance c at the third stage, and an estimated distance at the fourth stage. d. An estimation table 120 is provided in advance, which includes an estimated distance e at the fifth level, an estimated distance f at the sixth level, and an estimated distance g at the seventh level. The estimated distance a to estimated distance g are estimated distance a <... <Estimated distance g, that is, the distance gradually increases. The operator 9 is an operator having an assumed height and sitting height as an example.

Here, a distance _{L 1} from the operator 9 to display device 84 also changes the angle of the seat back 80a relative to the seat cushion 80b. Therefore, the estimation table 120 may be configured as a table that considers the angle of the seat back 80a in addition to the seat position of the seat cushion 80b. The estimation table 120 may be a table that takes into account the sitting height of the operator 9. This sitting height may be measured by arranging a sensor on the seat, or may be measured by imaging with a camera.

The distance estimation unit 12, the obtained sheet information S _2, and based on the estimation table 120 to estimate the distance from the operator to the display device 84, the control unit 14 the estimated distance (estimated distance) as the distance information S ₃ Output.

  Here, as a modification, the distance estimation unit 12 is not limited to the configuration for estimating the distance from the sheet position, and may be a configuration for measuring the distance from image information obtained by imaging with a camera.

  As another modification, the distance estimation unit 12 may be configured to estimate the distance from the operator to the display device based on information on the installation position of the display device, for example. As an example, the information on the installation position may include information on the switched display device when there are a plurality of display devices.

(Configuration of control unit 14)
The control unit 14 includes, for example, a CPU (Central Processing Unit) that performs operations and processing on acquired data according to a stored program, a RAM (Random Access Memory) that is a semiconductor memory, a ROM (Read Only Memory), and the like. Microcomputer. In this ROM, for example, a program for operating the control unit 14 and a ratio table 140 are stored. For example, the RAM is used as a storage area for temporarily storing calculation results and the like.

The ratio table 140 is a table in which the estimated distance estimated by the distance estimating unit 12 and the ratio are associated with each other. This ratio, as an example, as shown in FIG. 2 (b) and 2 (c), to move the cursor 841 displayed on the moving distance L ₂ and the display device 84 of the operation finger 90 touch pad 10 detects the ratio of the distance _{L 3.} That is, if the ratio of the distance L _{3 to} the moving distance L ₂ is α, the distance L ₃ = α × the moving distance L ₂ .

The moving distance L _2, as shown in FIG. 2 (c), in the tracing operation, the detection point 101 initially operating the finger 90 is detected, the detection point 102 last operation the finger 90 is detected, the Is the distance between. The detection point 101 and the detection point 102 are represented by coordinates in the xy coordinate system set on the operation surface 100.

Distance The distance L ₃ is, for example, as shown in FIG. 2 (b), that the display screen 840, tied starting point coordinates of the cursor 841 corresponding to the detection points 101, coordinates corresponding to the detection point 102 as an end point It is. In the display screen 840, an XY coordinate system is set with the upper left of the display screen 840 as the origin, the X axis in the left-right direction, and the Y axis in the up-down direction on the paper surface of FIG.

The above-described ratio α is a non-zero real number and is set by the ratio table 140. The ratio α includes a conversion coefficient β for converting coordinates in the xy coordinate system into coordinates in the XY coordinate system. That is, when the coordinate transformation coordinate in the xy coordinate system to the coordinates of the XY coordinate system without considering the distance L _1, the distance L _{3 =} β × travel distance L _2. Since the formula that changes the ratio according to the distance L ₁ between the operator 9 and the display device 84 is distance L ₃ = α × movement distance L ₂ , α = β × γ. That is, γ is a variable that depends on the distance L ₁ between the operator 9 and the display device 84. In other words, the ratio α is a value obtained by multiplying a constant conversion coefficient β by a variable γ that depends on the distance L ₁ .

  For example, as shown in FIG. 3B, the ratio table 140 has a ratio A corresponding to the estimated distance a, a ratio B corresponding to the estimated distance b, and a ratio C corresponding to the estimated distance c. The ratio is associated with the estimated distance d as D, the ratio as E with the estimated distance e as E, the ratio as F with the estimated distance f, and the ratio as G with the estimated distance g. .

Here, the control unit 14 sets the ratio α of the movement distance L ₂ of the operation finger 90 and the distance L ₃ for moving the cursor 841 to be larger as the estimated distance L ₁ to the display device 84 becomes longer. Therefore, the ratios A to G described above are ratio A <... <Ratio G, that is, the ratio increases as the estimated distance increases.

(Configuration of vehicle communication system 800)
The operation detection device 1 is included in a vehicle communication system 800, for example, as shown in FIG. This vehicle communication system 800 is a system for exchanging signals and information via a vehicle LAN 801. For example, a vehicle control unit 802, a display device 84, an auxiliary display device 86, a seat adjustment device 87, and an electronic device that can be operated by the operation detection device 1 are electromagnetically connected to the vehicle LAN 801. ing.

  The vehicle control unit 802 is a microcomputer including a CPU, a RAM, a ROM, and the like, for example.

Seat adjustment mechanism 87, the sheet information _{S 2} including information on seat position, and outputs the operation detection device 1 via the vehicle LAN801. Seat adjustment mechanism 87, after the power source of the vehicle 8 is turned on, and after the seat position is adjusted, and generates and outputs the sheet information S _2.

An example of the operation of the operation detection device 1 will be described with reference to the flowchart of FIG. In the following, the operation detection device 1 to set the ratio, by using the set ratios, the operation until the outputs operation information S ₄ corresponding to the detected tracing operation will be described.

(Operation)
Operation detection device 1, after the power source of the vehicle 8 is turned, the seat adjustment mechanism 87, via a vehicle LAN801 acquires sheet information _{S 2} (S1). Incidentally seat adjustment mechanism 87 includes, for example, a sensor for detecting that the operator is seated, after detecting the seating may be configured to output the sheet information S _2.

Then, distance estimation section 12 estimates a distance from the display device 84 to the operator on the basis of the obtained sheet information S ₂ (S2). Specifically, distance estimation section 12 estimates the distance by selecting the estimated distance according to the sheet position of the sheet information S ₂ from the estimation table 120. The distance estimation unit 12 generates distance information S ₃ based on the estimated distance selected from the estimation table 120 and outputs the distance information S ₃ to the control unit 14.

Next, the control unit 14 sets the ratio on the basis of the distance information _{S 3} acquired (S3). Specifically, the control unit 14, when the distance information S ₃ to obtain an estimated distance, the ratio corresponding to the estimated distance, selects from the ratio table 140, a distance of moving the moving distance and the operation target to be detected Set as a ratio.

After the above-mentioned ratio setting, the control unit 14 periodically acquires the detection information S ₁ from the touch pad 10, determines the presence or absence of operation. For example, when it is determined that “Yes” in Step 4 is established, that is, the tracing operation has been performed (S4: Yes), the control unit 14 obtains a distance to move the operation target based on the set ratio, and the distance operation information to generate _{S 4} and outputs to the electronic device to operate through the vehicle LAN801 based on (S5).

(Effect of embodiment)
The operation detection device 1 according to the present embodiment can suppress a difference in operability due to a difference in distance from the operator to the display device. For example, when the distance from the operator to the display device is long, the distance that the operation object moves is felt shorter than the distance that traces the operation surface 100, and when the distance is close, the distance that the operation object moves is felt longer. The operation detection device 1 detects the movement distance of the detection target detected by the touchpad 10 and the operation displayed on the display device based on the distance from the operator to the display device so as to suppress such a difference in operability. A ratio to the distance to move the object can be set. That is, the operation detection device 1 provides the operator with an optimal ratio according to the distance from the operator to the display device. Therefore, the operation detection device 1 can suppress the difference in operability due to the difference in the distance from the operator to the display device.

  Since the operation detection device 1 estimates the distance from the operator to the display device based on the sheet position, the cost is suppressed compared to a method of performing image processing on image information captured by a camera or the like and measuring it.

  The operation detection apparatus 1 according to the above-described embodiment and modification is, for example, a program executed by a computer, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or the like, depending on applications. It may be realized by.

  As mentioned above, although some embodiment and modification of this invention were demonstrated, these embodiment and modification are only examples, and do not limit the invention based on a claim. These novel embodiments and modifications can be implemented in various other forms, and various omissions, replacements, changes, and the like can be made without departing from the scope of the present invention. In addition, not all combinations of features described in these embodiments and modifications are necessarily essential to the means for solving the problems of the invention. Furthermore, these embodiments and modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Operation detection apparatus, 8 ... Vehicle, 9 ... Operator, 10 ... Touch pad, 12 ... Distance estimation part, 14 ... Control part, 80 ... Driver's seat, 80a ... Seat back, 80b ... Seat cushion, 80c ... Reference position , 81 ... Passenger seat, 82 ... Floor console, 83 ... Center console, 84 ... Display device, 85 ... Meter panel, 86 ... Auxiliary display device, 87 ... Seat adjustment device, 88 ... Floor, 90 ... Operating finger, 100 ... Operation Surface 101 101 Detection point 102 Detection point 120 Estimation table 140 Ratio table 800 Vehicle communication system 801 Vehicle LAN 802 Vehicle control unit 840 Display screen 841 Cursor

Claims (4)

An operation detection unit for detecting a tracing operation performed on the operation surface by a detection target;
A distance estimation unit that estimates a distance from an operator who operates the operation surface to a display device on which an operation target is displayed;
Based on the distance to the display device estimated by the distance estimation unit, a ratio between the movement distance of the detection target detected by the operation detection unit and the distance to move the operation target displayed on the display device is set. A setting section to
An operation detection device comprising: The distance estimating unit estimates a distance to the display device based on a distance between the seat on which the operator is seated and the display device;
The operation detection apparatus according to claim 1. The distance estimation unit includes a table that associates the position of the seat that moves by adjustment and the distance of the display device, and based on the table, the distance to the display device that corresponds to the acquired position of the seat Estimate
The operation detection apparatus according to claim 2. The setting unit sets a ratio of a moving distance of the detection target and a distance of moving the operation target as the estimated distance to the display device increases.
The operation detection device according to claim 1.

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