JP2019156206A - Operation input device - Google Patents

Abstract

To provide an operation input device capable of improving operability.SOLUTION: An operation input device 1 briefly comprises: a contact detection part 10 that detects a position to come into contact with window glass 81 of a door 80 of a vehicle 8; a vibration detection part 12 that detects vibrations of the window glass 81; and a control part 16 that receives input depending on the position to come into contact with the window glass 81 and determines a predetermined function based on the received input, when the position to come into contact with the window glass 81 is detected in association with the detection of the vibrations.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an operation input device.

  As a conventional technique, a proximity electrode or a detection electrode of a contact detection sensor and an antenna of a transmission / reception device that communicates with the outside of the vehicle are accommodated in a handle, and a driver approaches or touches the vehicle. 2. Description of the Related Art A vehicle door outside handle device that performs communication between a transmission / reception device and a driver-side portable device and unlocks a door by detecting with a proximity sensor or the like is known (for example, see Patent Document 1). ).

  In the vehicle outside handle apparatus for a vehicle, a detection electrode of a capacitive touch sensor that generates a lock operation signal for the door is covered and accommodated in an outer shell of the handle. An operation point instruction mark is provided at the touch sensor sensitive position. The driver can perform the locking operation only by lightly touching the operation point instruction mark on the steering wheel when leaving the vehicle.

JP 2003-221947 A

  Like this conventional vehicle outside handle device, for example, when a sensor that enables input based on a contact operation or a contact position touched is arranged outside the vehicle, it is possible to detect conductive foreign matter such as rainwater. There is sex. In addition, when the sensitivity is lowered by increasing the threshold for determination so that it is difficult for such a sensor to detect conductive foreign matter, it is difficult for the user to accept input and operability is reduced. There's a problem.

  Accordingly, an object of the present invention is to provide an operation input device capable of improving operability.

  According to one aspect of the present invention, a contact detection unit that detects a contact position of a vehicle door with respect to a window glass, a vibration detection unit that detects vibration of the window glass, and a contact position of the window glass are detected along with the detection of the vibration. In such a case, an operation input device is provided that includes an input according to the contact position of the window glass and a determination unit that determines a predetermined function based on the received input.

  According to the present invention, operability can be improved.

FIG. 1A is a schematic diagram illustrating an example of the arrangement of the contact detection unit and the vibration detection unit of the operation input device according to the embodiment, and FIG. 1B is an example of a block diagram of the operation input device. is there. FIG. 2A is a block diagram illustrating an example of a locking / unlocking system including the operation input device according to the embodiment, and FIG. 2B is a schematic diagram illustrating an example of user information. FIGS. 3A and 3B are schematic diagrams illustrating an example of the capacitance value detected by the contact detection unit according to the embodiment, and FIG. 3C is a diagram illustrating detection by the vibration detection unit. It is the schematic which shows an example of a vibration. FIG. 4 is a flowchart illustrating an example of the operation of the operation input device according to the embodiment.

(Summary of embodiment)
An operation input device according to an embodiment includes a contact detection unit that detects a contact position of a vehicle door with respect to a window glass, a vibration detection unit that detects vibration of the window glass, and a contact position of the window glass in accordance with the detection of vibration. Is detected, and a determination unit that receives an input according to the contact position of the window glass and determines a predetermined function based on the received input is schematically configured.

  Since this operation input device accepts input when the contact position of the window glass is detected along with the detection of vibration, the threshold value is set as compared with the case where the threshold value for detecting the contact position is set high. There is no need to increase the sensitivity to reduce the sensitivity, and the operability can be improved.

[Embodiment]
(Overview of operation input device 1)
FIG. 1A is a schematic diagram illustrating an example of the arrangement of the contact detection unit and the vibration detection unit of the operation input device according to the embodiment, and FIG. 1B is an example of a block diagram of the operation input device. is there. FIG. 2A is a block diagram illustrating an example of a locking / unlocking system including the operation input device according to the embodiment, and FIG. 2B is a schematic diagram illustrating an example of user information. FIGS. 3A and 3B are schematic diagrams illustrating an example of the capacitance value detected by the contact detection unit according to the embodiment, and FIG. 3C is a diagram illustrating detection by the vibration detection unit. It is the schematic which shows an example of a vibration. 3A and 3B show an example of the capacitance value C of the input area 100a where the detection area 100 is located.

  Note that, in each drawing according to the embodiment described below, the ratio between figures may be different from the actual ratio. In FIG. 1B and FIG. 2A, the flow of main signals and information is indicated by arrows.

  For example, as shown in FIGS. 1A and 1B, the operation input device 1 includes a contact detection unit 10 that detects a contact position of the door 80 of the vehicle 8 with respect to the window glass 81, and vibration of the window glass 81. When the contact position of the window glass 81 is detected along with the detection of vibration, the input corresponding to the contact position of the window glass 81 is received, and a predetermined function based on the received input is detected. And a control unit 16 as a determination unit for determining whether or not.

  Further, the operation input device 1 includes a display unit 14 that performs a display image 140 on the window glass 81 according to the detection region 100 of the contact detection unit 10 as shown in FIGS. 1 (a) and 1 (b), for example. is doing. For example, the display unit 14 projects the display image 140 from the inside of the vehicle toward the detection region 100 of the window glass 81. As a modification, the display image 140 may be printed on the window glass 81, for example.

  Moreover, the control part 16 memorize | stores a PIN code, for example as shown in FIG.1 (b) and FIG.2 (b), the PIN code input based on the contact position of the window glass 81, and the stored PIN code When the collation is established, execution of a predetermined function is instructed.

  Here, in FIG. 1A, the operation input device 1 is disposed as an example on the right front door 80 of the vehicle 8, but is not limited thereto, and may be disposed on the left front door. Moreover, the operation input device 1 may be arrange | positioned at a sliding door, for example, and may be arrange | positioned also at a trunk lid.

  The predetermined functions are, for example, locking (locking) and unlocking (unlocking) doors. The user can instruct the door to be locked or unlocked by inputting the correct password while holding the portable device (electronic key 76) registered in the vehicle 8. The predetermined function may be a function of opening and closing (opening) together with a function of locking and unlocking the slide door when the operation input device 1 is disposed on the slide door, for example.

  As an example, the operation input device 1 constitutes a part of the locking / unlocking system 7 as shown in FIG. The locking / unlocking system 7 is a system that locks, unlocks, opens, etc. the door of the vehicle 8 according to the password that the operation input device 1 authenticates.

  As an example, the locking / unlocking system 7 includes an operation input device 1, a vehicle LAN (Local Area Network) 70, a system control unit 72, an authentication unit 74, and an electronic key 76, as shown in FIG. And a door lock portion 78.

  The vehicle LAN 70 is, for example, a vehicle network such as a CAN (Controller Area Network) or a LIN (Local Interconnect Network) that can exchange signals and information with each other by wire or wireless.

  The system control unit 72 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. It is a microcomputer configured. The system control unit 72 controls communication via the vehicle LAN 70, for example.

For example, the authentication unit 74 performs wireless communication with the electronic key 76 carried by the user within the communication range, collates the authentication number of the electronic key 76 with the registered registration number, and if the electronic key 76 matches, Authenticate that it is registered. The authentication unit 74, the authentication establishment information of the electronic key 76, the operation information of the operation button of the electronic key 76, and the authentication information S _5, including user information authentication related registration number satisfied, vehicle LAN70 To the system control unit 72 and the operation input device 1.

The system control unit 72, the operation input device 1 an instruction signal S ₄ output _from, and the door lock based on the authentication information S ₅ outputted from the authentication unit 74, the lock unlock signal S ₆ for instructing the like unlocking Is output to the door lock unit 78 via the vehicle LAN 70.

The door lock unit 78 locks and unlocks a door or a trunk lid that can be opened and closed of the vehicle 8, for example. The door lock unit 78 is, for example, lock, such as the specified door or trunk lid, unlock, etc. performed on the basis of the lock unlock signal S ₆ output from the system control unit 72.

(Configuration of the contact detection unit 10)
The contact detection unit 10 is, for example, a capacitive touch sensor. The contact detection unit 10 is disposed on the vehicle interior side of the window glass 81. The contact detection unit 10 is configured so that, for example, a contact position in the detection region 100 can be acquired. As an example, the contact detection unit 10 includes a plurality of detection electrodes corresponding to the input region 100a of the detection region 100, and is schematically configured.

  This detection electrode is configured as a transparent electrode such as ITO (Indium Tin Oxide). As a modification, the contact detection unit 10 may have a configuration in which a plurality of drive electrodes and detection electrodes are arranged in the detection region 100 while maintaining insulation so that coordinates of the contact position can be calculated.

  As an example, the input area 100a of the present embodiment is an area obtained by equally dividing the detection area 100 into 4 rows and 3 columns, as shown in FIG. This input area 100a is a minimum unit for inputting a personal identification number. This detection area 100 is an area of the window glass 81 above the door knob 82, for example, as shown in FIG.

Contact detection unit 10 to output to the control unit 16 as detection information S ₁ by detecting the electrostatic capacitance generated for each input area 100a between the detection object in contact with the window glass 81 in the detection region 100 It is configured. This detection target is a part of the user's body (for example, a finger). For example, as shown in FIGS. 3A and 3B, the contact detection unit 10 outputs a reference value C ₀ for each input area 100 a as detection information S ₁ when there is no touch operation, that is, no touch input. Is configured to do.

(Configuration of vibration detection unit 12)
The vibration detection unit 12 is, for example, a sensor that detects displacement of the window glass 81, a sensor that detects speed, a sensor that detects acceleration, and the like. The vibration detection unit 12 of the present embodiment is a sensor that detects the displacement of the window glass 81 as vibration.

  And the vibration detection part 12 is arrange | positioned at the window glass 81, for example, as shown to Fig.1 (a). As a modification, for example, the vibration detection unit 12 may not be arranged on the window glass 81 when the displacement can be measured without contacting the window glass 81 using a laser or the like.

As an example, the displacement of the window glass 81 is based on the stationary position (reference position L ₀ ) of the window glass 81 as a reference, and the back side direction of FIG. 1A is positive and the near side direction is negative. In thus FIG. 3 (c), the upper from the reference position L ₀ is the displacement of the rear-side direction from the rest position of the window glass 81, downward from the reference position L ₀ is the front direction of the displacement from the rest position.

For example, the vibration detection unit 12 generates a vibration detection signal S ₂ based on the displacement of the window glass 81 and outputs the vibration detection signal S ₂ to the control unit 16.

(Configuration of display unit 14)
For example, the display unit 14 is disposed on the ceiling of the vehicle 8 and is configured to project the display image 140 onto the detection area 100 from the inside of the vehicle. The display unit 14, for example, to project a display image 140 based on the display signal S ₃ output from the control unit 16.

  For example, the display image 140 includes “1” to “3” in the input area 100a of the first line, “4” to “6” in the input area 100a of the second line, and “4” to “6” in the input area 100a of the third line. 7 ”to“ 9 ”, and the input area 100a in the fourth row is roughly configured to include images“ E ”,“ 0 ”, and“ D ”. These “0” to “9” are used for inputting numbers. “E” is used, for example, to end the input of the personal identification number. “D” is used, for example, for erasing an input number by one character.

  For example, when inputting a password, the user performs touch input on the input area 100a corresponding to the input password. Then, for example, when the user performs touch input on the input area 100a on which “E” is displayed, the input of the personal identification number is completed, and collation is started.

  The operation input device 1 is not limited to inputting numbers, and may be configured to input alphabets, hiragana, katakana, symbols, images, and the like.

  Note that the contact detection unit 10 may be configured to output a contact position where contact is detected. Similarly, the vibration detection unit 12 may be configured to output a result of detection of vibration.

(Configuration of control unit 16)
The control unit 16 is, for example, a microcomputer that includes a CPU that performs operations, processes, and the like on acquired data in accordance with stored programs, and a RAM and a ROM that are semiconductor memories. For example, a program for operating the control unit 16 and user information 160 are stored in the ROM. For example, the RAM is used as a storage area for temporarily storing calculation results and the like. Further, the control unit 16 has a means for generating a clock signal therein, and operates based on the clock signal and measures time.

The user information 160 is information on a user name 160a, a personal identification number 160b, and a function 160c associated with the electronic key 76 as shown in FIG. 2B, for example. The user name 160a is a registered name of the user who owns the electronic key 76, for example. Control unit 16 acquires, for example, user name 160a on the basis of the authentication information S ₅ the authentication unit 74 is output when authentication is established. The personal identification number 160b is registered for each function 160c to be executed, for example. The function 160c is, for example, the above-described predetermined function, and is a function such as locking, unlocking, and opening a door associated with the user name 160a and the personal identification number 160b.

  As an example, the user information 160 can register a plurality of passwords and functions for one user, as shown in FIG. The control unit 16 is configured to store, as user information 160, a function 160c desired to be executed for each password. In FIG. 2B, as an example, the user A registers the door unlock in association with the password “XXX” and the door lock in association with the password “XXX”. B shows a case where door opening is registered in association with the personal identification number “ΔΔΔΔ”.

Control unit 16, for example, based on the authentication information S ₅ and the user information 160 of the electronic key 76 the authentication is successful, collates the personal identification number that the user entered the personal identification number registered. Control unit 16, if the verification is satisfied, generates and outputs an instruction signal S ₄ containing information of the function 160c associated with the personal identification number 160b that verification is established.

Control unit 16, for example, as shown in FIG. 3 (a) ~ FIG 3 (c), to confirm the detection information S ₁ generation of vibration as a trigger, the reference value C ₀ is greater than the capacitance value C is detected If it is, the input of the input area 100a where the capacitance value C is detected is received.

More specifically, the control unit 16 detects the vibration based on the vibration detection signal S ₂ acquired from the vibration detection unit 12 checks the detected information S ₁ acquired from the contact detection unit 10. Control unit 16, when the contact on the basis of the detected information S ₁ is detected, accepts a touch input to the input region 100a that contact has been detected. For example, when the user performs a touch input on the input area 100a of “1”, the control unit 16 receives an input of “1”. The control unit 16 stores the received input in time series.

  Here, in FIG. 3A and FIG. 3B, a threshold value Th for comparison is illustrated as an example. When the operation input device 1 does not have the vibration detection unit 12, for example, as shown in FIG. 1A, in order to suppress erroneous detection when the conductive foreign material 9 is attached to the detection region 100, It can be considered that the threshold value Th is set high so that the adhesion of the foreign matter 9 is not determined as a touch input.

  However, when the threshold value Th is set high, for example, the first capacitance value C shown in FIG. 3A or the second capacitance value C shown in FIG. Since it does not exceed, there is a possibility that the touch input of the user is not accepted and the collation of the password is not established. In this case, the user has to input the password again and is troublesome.

The operation input device 1 according to the present embodiment confirms the capacitance value C using vibration as a trigger, and if a capacitance value C greater than the reference value C ₀ is detected, the touch input is accepted. Compared with the case where the value Th is set high, the user can quickly input the password.

  For example, the control unit 16 uses the vibration as a trigger, and confirms the capacitance value C within a predetermined period starting from the trigger. As an example, this predetermined period is about 0.5 seconds.

  An example of the operation of the operation input device 1 according to the present embodiment will be described with reference to the flowchart of FIG. In the following, it is assumed that lock or unlock is instructed, and it is assumed that authentication of the electronic key 76 has been established.

(Operation)
Control unit 16 of the operation input device 1 is "Yes" is established in step 1, that is when the vibration based on the vibration detection signal _{S 2} output from the vibration detecting section 12 is detected (Step1: Yes), the contact check the capacitance value C based on the detected information _{S 1} input from the detection unit 10 (Step2).

When the electrostatic capacitance value C is larger than the reference value C ₀ and the touch input is detected within the predetermined period T (Step 3: Yes), the control unit 16 stores the received input and also stores the password. Check if input is complete.

  For example, when the input of the personal identification number is completed (Step 4: Yes), the control unit 16 collates the personal identification number 160b registered by the user with the input personal identification number based on the user information 160.

Control unit 16, if the verification is satisfied (Step5: Yes), generates and outputs an instruction signal _{S 4} for instructing the execution of the corresponding function 160c to PIN 160b of checking based on the user information 160 (Step6) .

Here, the system control unit 72 of the locking / unlocking system 7 receives the lock / unlock signal S ₆ for instructing locking or unlocking via the vehicle LAN 70 when the instruction signal S ₄ for instructing locking or unlocking is input, for example. To the door lock unit 78. Door lock unit 78 locks or unlocks the doors of the vehicle 8 on the basis of the lock unlock signal S _6.

  Here, in step 3, when no touch input is detected within a predetermined period T (Step 3: No), the control unit 16 advances the process to Step 1.

  In step 4, the control unit 16 advances the process to step 1 when the input of the personal identification number is not completed without touching “E” (Step 4: No).

  Furthermore, in step 5, the control part 16 advances a process to step 1, when collation of a PIN code is not materialized (Step5: No).

(Effect of embodiment)
The operation input device 1 according to the present embodiment can improve operability. Specifically, the operation input device 1 accepts an input when a touch input to the input area 100a is detected along with the detection of vibration, so compared to the case where the detection threshold is set high. There is no need to increase the threshold value to lower the sensitivity, and the operability can be improved.

  Since the operation input device 1 receives an input when a touch input is detected using vibration as a trigger, the operation input device 1 has a higher sensitivity and can quickly perform a touch input than when a high threshold is set.

  Since the operation input device 1 can instruct the lock and unlock of the door by the verification of the password, the electronic key 76 is locked in the state where it is placed in the vehicle as compared with the case where this configuration is not adopted. be able to.

  Since the operation input device 1 determines the presence / absence of touch input by combining detection of vibration and detection of touch input, compared to a case where this configuration is not adopted, erroneous detection due to adhesion of the conductive foreign material 9 is suppressed, The touch input judgment accuracy is high.

  As a modification, the operation input device 1 may be configured to enable touch input when vibration is detected using contact detection as a trigger.

  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. Further, 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 input apparatus, 7 ... Locking / unlocking system, 8 ... Vehicle, 9 ... Conductive foreign material, 10 ... Contact detection part, 12 ... Vibration detection part, 14 ... Display part, 16 ... Control part, 70 ... Vehicle LAN, 72 ... System control unit, 74 ... Authentication unit, 76 ... Electronic key, 78 ... Door lock unit, 80 ... Door, 81 ... Window glass, 82 ... Door knob, 100 ... Detection area, 100a ... Input area, 140 ... Display image, 160 ... User information, 160a ... User name, 160b ... PIN code, 160c ... Function

Claims (4)

A contact detection unit for detecting a contact position with respect to the window glass of the vehicle door;
A vibration detector for detecting the vibration of the window glass;
When the contact position of the window glass is detected along with the detection of vibration, an input according to the contact position of the window glass is received, and a determination unit that determines a predetermined function based on the received input;
An operation input device comprising: A display unit that performs a display image on the window glass according to a contact position of the window glass;
The operation input device according to claim 1. The determination unit stores a personal identification number, compares the personal identification number input based on the contact position of the window glass and the stored personal identification number, and executes the predetermined function when verification is established. Instruct,
The operation input device according to claim 1 or 2. The predetermined function is locking and unlocking the door,
The operation input device according to any one of claims 1 to 3.

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