JP2011164737A - Password management method and hmi device with password setting function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of setting a new password without using a numerical character, an alphanumeric character or the like, and a method of resetting it. <P>SOLUTION: In setting a password, the order of touches to a predetermined number of touch parts arranged in matrix is input as a password. In unlocking password lock, the touch parts are touched in the above order of touches. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a password management method for setting or canceling a password by touch operation on a touch panel screen, and an HMI (Human Machine Interface) device with a password setting function.

  As an HMI device, for example, there is a programmable display with a touch panel screen. This programmable display is connected via a serial communication cable such as RS232C as an HMI device, displays the status of the external device through a PLC that allows mutual data communication, and operates the external device through a PLC (programmable controller). (Patent Document 1). The HMI device having the HMI function includes a panel computer and the like. In the programmable display, operation parts for operating external devices are displayed on the touch panel screen, and the user can operate the external parts by operating the operation parts displayed on the display. And an HMI device that forms an interface with the user.

  As described above, the programmable display device has a function of displaying an operation status of a device connected to the PLC and receiving an operation input for giving a control instruction to the device from the screen. The screen displayed on the display device can be created by editing the screen on the editing screen of an external PC (personal computer) by the user using drawing software. The created screen is transferred to the programmable display device as screen data and stored. When the PLC is in operation, the display components on the screen displayed on the display unit of the programmable display dynamically change according to the state of the device connected to the PLC. In addition, an input operation on the screen to the display component is given to the device as a control instruction. The created screen can be managed as a project file collectively as a series of related screens for each control target. The project file is a set of data including a plurality (several hundreds) of screen data and the setting data necessary for the operation of the display according to the screen data because the display device does not operate only with this screen data.

  In the above, the project file created by the screen creator is transferred from the external PC to the programmable display device and downloaded. I want to be able to modify or change the display screen displayed on the touch panel screen on the programmable display with this project file only for a specific operator. In such a case, it may be possible to attach a password to the development of the project file. Conventional passwords are entered by entering a number or alphabetic symbol and performing a password lock operation.

  However, it is pointed out that with such passwords, numbers, English symbols, and the like that are associated with the operator to a certain extent depending on the date of birth, address, etc. tend to be selected, and the possibility of password theft is not uncommon.

JP 2005-339434 A

  The problem to be solved by the present invention is to provide a new password management method that does not use numerals or English symbols.

  In the password management method according to the present invention, when setting a password, a first step of displaying a password input screen in which a plurality of touch portions are arranged on a touch panel screen, and the plurality of touch portions on the password input screen, A second step of inputting, as a password, the order of touch operations (touch operation sequence) performed on the predetermined number of touch units, and a third step of confirming password input by touching the password setting button after the password is input. On the other hand, when releasing the password lock, the fourth step of displaying the password input screen on the touch panel screen and the predetermined number of touch units among the plurality of touch units on the password input screen. The fifth step in which the touch operation is performed in the same touch operation order as the above touch operation order. Run and-up, and a sixth step of executing a password unlocked by touching the password lock release button after the password input, and characterized in that.

  In the present invention, the password input screen is composed of a plurality of preferably non-display blank touch portions arranged on the touch panel screen, and the touch operation is performed on a predetermined number of touch portions on the password input screen. Since the touch operation sequence is set as a password, it is impossible to assume a password with numerals or English symbols, and it is possible to provide password management that greatly improves security.

  Preferably, the password input screen includes a plurality of touch units arranged in a vertical and horizontal grid pattern.

  Preferably, the touch part is a non-display blank. This non-display blank means that no numerals or English symbols are displayed.

  Preferably, the touch panel screen is a single touch panel screen that disables a plurality of simultaneous touch operations, and each touch operation is performed with a time interval.

  The HMI device according to the present invention is an HMI device capable of performing a touch operation by displaying a screen based on a project file created by HMI drawing software on a touch panel screen, and executes the password management method on the project file. Password management information is included, and when performing a screen operation using the project file on the touch panel screen, the password can be locked and released by the password management information.

  According to the present invention, since the password is used for the touch operation sequence for a plurality of touch units, it is easy to memorize the password by the date of birth, address, etc. like a password using a number or an English symbol as in the past. Since it is not a number, its security is improved.

FIG. 1 is a diagram showing a configuration of a password input screen used in the password management method according to the embodiment of the present invention. FIG. 2 is an enlarged view of the password input unit on the password input screen. FIG. 3 is a diagram showing a state where the password setting button is operated on the password input screen. FIG. 4 is a diagram showing an example of password setting. FIG. 5 is a diagram showing a state where the password is locked by operating the password setting button. FIG. 6 is a diagram used for explaining the password operation time interval on the single touch panel screen. FIG. 7 is a diagram used for explaining the case where the password operation time interval is free on the single touch panel screen. FIG. 8 is a diagram showing a state where the password unlock button is operated on the password input screen. FIG. 9 is a diagram showing an example of password unlocking operation. FIG. 10 is a diagram showing a state where the password lock is released by operating the password lock release button. FIG. 11 is a diagram used for explaining the time interval of the password unlock operation on the multi-touch panel screen. FIG. 12 is a diagram showing an internal block configuration of the HMI device.

  Hereinafter, a password management method according to an embodiment of the present invention will be described with reference to the accompanying drawings. When the creation of the project file is completed on the drawing tool, password information is stored in the project file so that only the specific operator can operate the project file. When any file operation is performed on the project file, it is requested to input password information stored in the project file.

  The project file including such password information is transferred to an HMI device such as a programmable display and downloaded. On the HMI device side, the password is locked by setting the password according to the password information stored in the project file, and when the project file with the password set is expanded, the password lock state is canceled and the project file is released. Expand. The password may be set by the creator or the user handling the HMI device. Further, the setting may be performed by a single operator or a plurality of operators. In the case of a plurality of operators, each operator may be allowed to set a password.

(Password setting)
The password setting will be described. As shown in FIG. 1, the password input screen 1 is displayed on the touch panel screen of the HMI device, and prompts the specific operator to input the password setting. The password input screen 1 includes a password input unit 2 that is touch-operated at the time of password input, a password setting button 3 that is operated at the time of starting password setting, and at the time of password setting and password locking, And a password lock release button 4 that is operated when the release operation ends. These buttons 3 and 4 are two for convenience of illustration, but can also be constituted by one button.

  The password input unit 2 is shown enlarged in FIG.

  The password input unit 2 includes a plurality of non-display blank touch units 5. In the embodiment, the password input unit 2 includes 64 touch units 5 in 8 rows and 8 columns, but the number of components of the touch unit 5 may be arbitrary and is not particularly limited. Although the matrix number is entered in FIG. 2, this is entered for convenience of illustration, and the entry of this matrix number may or may not be omitted in the actual password input unit 2. May be displayed. These touch portions 5 are non-display blanks, and no symbols or English characters are displayed. The touch parts 5 are arranged in a vertical and horizontal grid pattern, but the present invention is not limited to this, and the touch parts 5 may be arranged away from each other, the touch parts 5 may be arranged in a meandering manner, Includes array forms. Each touch unit 5 has a rectangular shape in plan view, but is not limited to a rectangular shape, and may be circular, elliptical, or the like, and the shape is not particularly limited.

  Of these touch units 5, a predetermined number, for example, four touch units in the embodiment, the operation order (touch operation order) is set as a password.

  First, as shown in FIG. 3, when setting a password, the password setting button 3 is operated. By operating the password setting button 3, the HMI device is notified that the subsequent touch operation is a password setting operation. Upon receiving this notification, the HMI device accepts the subsequent four touch operations as password input operations.

  Referring to FIG. 4, first, a first touch operation is performed on touch portion (1, 1). Subsequently, as indicated by an arrow, the second touch operation is performed on the touch units (8, 8). Further, as indicated by an arrow, the third touch operation is performed on the touch part (2, 4). Finally, as shown by the arrow, the fourth touch operation is performed on the touch part (8, 3). Thus, when the touch operation is completed, as shown in FIG. 5, when the password setting button 3 is operated, the touch operation sequence (1, 1) → (8, 8) → (2, 4) → (8 , 3) is accepted as an operational password for the project file to the HMI device and stored in the project file.

  The touch operation timing will be described with reference to FIG. 6. In the first to fourth touch operations as described above, the operation time t0-t1 of the first touch operation, the operation time t2-t3 of the second touch operation, The operation time t4-t5 for the third touch operation and the operation time t6-t7 for the fourth touch operation do not overlap. As shown in FIG. 7, when the end time of the previous touch operation is t8 and the start time of the next touch operation is t10, the time when the cancel time tc has elapsed from the end time t8 of the previous touch operation When the next touch operation is performed at time t10 after t9, the next touch operation may be invalidated.

(Password unlock)
When the password is locked by the password setting, the password lock release button 4 is operated as shown in FIG. 8 to release the password lock. By this operation, the HMI device is notified that a password lock release operation is performed. Upon receiving this notification, the HMI device accepts the subsequent four touch operations as password unlocking operations. As shown in FIG. 9, first, the first touch operation is performed on the touch unit (1, 1). Subsequently, as indicated by an arrow, the second touch operation is performed on the touch units (8, 8). Further, as indicated by an arrow, the third touch operation is performed on the touch part (2, 4). Finally, as shown by the arrow, the fourth touch operation is performed on the touch part (8, 3). Thus, the order of the touch operation is (1, 1) → (8, 8) → (2, 4) → (8, 3) in the matrix number, and the password unlock button 4 is pressed as shown in FIG. By touching this, this is accepted as a password lock release in the operation of the project file for the HMI device, a specific screen on the project file is displayed, and necessary corrections can be made to this screen. It becomes like this.

  In the above embodiment, a single touch panel screen in which two or more touch units cannot be touched at the same time and the touch operations are invalidated. However, simultaneous operation of two or more touch units is valid. It can also be applied to a multi-touch panel screen. In the multi-touch panel screen, for example, as shown in FIG. 11, the touch unit (1, 8) is touched on the touch unit (8, 8) at time t2 before the first touch operation ends at time t1. A second touch operation is performed. Then, at time t4 before the second touch operation on the touch part (8, 8) ends at time t3, the third touch operation is performed on the touch part (2, 4). Next, the fourth touch operation is performed on the touch unit (8, 3) at time t6 before the third touch operation on the touch unit (2, 4) ends at time t5.

  Of course, even a multi-touch panel screen may be a touch operation similar to a single touch panel screen.

  Next, the HMI device 6 will be described with reference to FIG. 12. The HMI device 6 is, for example, a programmable display or a panel computer, and includes a CPU 7, a program memory 8, a project file memory 9, a display control unit 10, and a display unit 11. A touch panel control unit 12, a touch panel 13, an input unit 14 such as a mouse or a keyboard, and a communication interface 15 with a drawing tool. In the HMI device 6, a project file is downloaded from the drawing tool to the project file memory 9 through the communication interface 15. Password information is stored in the downloaded project file.

  In the touch panel control unit 12, the touch panel 13 includes a single touch panel screen or a multi touch panel screen. The program memory 8 stores a program as an HMI device. The project file stored in the project file memory 9 has a password input screen displayed when the file is operated, and the file screen can be expanded by setting the password and releasing the setting on the password input screen. .

  As described above, in the present embodiment, the password input screen 1 is composed of a plurality of touch units 5 arranged adjacent to each other in a blank pattern with no display blank, and a touch to be performed on a predetermined number of touch units 5. Since the password is used for the operation sequence, it is difficult to assume a password unlike numbers and alphabets, and the security is greatly improved.

1 Password input screen 2 Password input part 3 Password setting button 4 Password lock release button

Claims (5)

When setting a password,
A first step of displaying a password input screen formed by arranging a plurality of touch units on the touch panel screen;
A second step of inputting, as a password, an order of touch operations (touch operation order) performed on a predetermined number of touch portions of the plurality of touch portions on the password input screen;
A third step of confirming the password input by touching the password setting button after inputting the password;
While running
When unlocking the password,
A fourth step of displaying the password input screen on the touch panel screen;
A fifth step of performing a touch operation on the predetermined number of touch units among the plurality of touch units on the password input screen in a touch operation sequence similar to the touch operation sequence;
A sixth step of performing password unlocking by touching the password unlock button after inputting the password;
The password management method characterized by performing.   The method according to claim 1, wherein the password input screen includes a plurality of touch units arranged in a vertical and horizontal grid pattern.   The method according to claim 1, wherein the touch part is a non-display blank.   The method according to claim 1, wherein the touch panel screen is a single touch panel screen that disables a plurality of simultaneous touch operations, and each touch operation is performed with a time interval. In an HMI device that can display a screen with a project file created with HMI drawing software on the touch panel screen and perform touch operations.
Password management information for executing the method according to any one of claims 1 to 4 is included in the project file, and when the screen operation by the project file is performed on the touch panel screen, the password is managed by the password management information. An HMI device with a password setting function characterized in that it can be locked and unlocked.

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