JP2006146408A - Alarm device equipped with password key function, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a password key from being stolen without impairing the daily convenience of a user. <P>SOLUTION: Only when a setting place (S25) of terminal equipment which has detected abnormality or the operation order sequence of the switch operation of an alarm device until a screen where a password is input is displayed is different from usual (S26), a password key input screen is changed under the consideration of the possibility of the stealing operation of the password by any person other than family members such as an intruder (S28). Thus, it is possible to prevent the password from being stolen by preventing the password from being specified from the scrach or dirt of the screen without impairing the convenience of any daily operation to be performed by the family members. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an alarm device that handles highly confidential secret key information such as a secret code and a program thereof, in particular, without impairing convenience such as familiarity when a householder operates a secret key, and It is an object of the present invention to provide an apparatus provided with a safety measure that can greatly reduce the risk of reading information related to a personal identification key by another person due to scratches or dirt on the screen.

  Conventionally, in an automated teller machine at a bank or an entry / exit security device in a building, a user is required to enter a password consisting of about four digits from a numeric keypad or a touch panel on a display screen, and authenticate the password. A security function is used that performs authentication judgment using an ID code recorded on the magnetic part of a card used together as a key, and withdraws and unlocks the door.

  On the other hand, alarm devices for home use are becoming widespread, and when such alarm devices return home, alarms such as alarm sounds and external notifications are issued by the home responding to human sensors, etc. In order to prevent this, a delay time is provided between the actual detection of the sensor and the alarm issuance, and the alarm issuance stops if the alarm is quickly canceled by entering a password within this delay time. .

  However, with this security function using a PIN key, you can observe the position and movement of the arm and hand from the back, and by reading the degree of sebum stains such as scratches and fingerprints on the screen, which number is assigned to the PIN number. There is a concern that information such as whether it has been used may be leaked. For example, in household electric locks and alarm devices, etc., there are usually many days when abnormalities such as intruders do not occur. Therefore, in order to keep you safe and to simplify operations, It has also been pointed out that there is an increased tendency to assign a simple combination of PIN numbers. In such a situation, the same secret key is regularly used every day, so the numbers included in the secret key are locally soiled or the imprinted numbers are faded, and these numbers have been read by any chance. In some cases, there are only 24 types of PIN numbers of about 4 digits, so there are only 24 types of PIN numbers, which triggers theft of the PIN numbers. When there is an intruder, the electric lock is unlocked or an alarm device is used. There is concern about the danger that the warning will be released.

  In general, as a method to increase the confidentiality of the secret key, devices such as personal computers are equipped with a keyboard. Therefore, in addition to numbers, uppercase letters, lowercase letters, and special control keys can be mixed, and the number of digits can be limited. In many cases, measures are taken to increase the number of combinations by increasing the length and making the length variable, thereby making it difficult to leak a secret key, that is, a password.

  However, in the above-mentioned automatic teller machines and entry / exit security devices of banks, mainly considering the size and cost issues of the devices, the convenience of unspecified users such as elderly people who cannot use personal computers, etc. A simple liquid crystal display device such as a touch panel, several push button switches, and a cross pad is used as the input device. In many cases.

  Therefore, the method of introducing a password with a large number of digits or a password that uses a large number of alphabets, such as a device using a personal computer, is not suitable for application and may be confused or forgotten with a password of another device. It is considered that it is not appropriate in terms of convenience on the user side.

  Some proposals relating to a method for preventing the leakage of a password are disclosed in view of these problems (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).

  For example, in Patent Document 1, each time a password input screen is displayed, the relative position on the display device of the numeric keypad on which numeric keys are arranged and the arrangement of numbers on the numeric keypad are irregularly changed. This makes it difficult to specify the correspondence between the pressed position on the screen and the numeric keys.

  Next, in Patent Document 2, each digit number of the code number is normally input in the order from the thousandth to the first digit. The tenth digit is followed by the thousandth digit and the first digit. By changing the order of the input digits at random, for example, by blinking the cursor to prompt for input, it is possible to determine which digit corresponds to the input number.

Further, in Patent Document 3, a numeric keypad array is displayed in a display section set in a matrix form on the screen, and the numeric keypad numbers are re-displayed with random shifts in the vertical and horizontal directions each time a password is entered. This makes it difficult to specify the correspondence between the pressed position on the screen and the numeric keys.
JP 2000-20468 A JP 2000-330699 A JP 2003-196006 A

  As described above, in the method of randomizing the order of the input digits of the password, in the case of a password of about 4 digits, four numbers are determined from the position where the screen is pressed by the movement of the arm or finger. Even if the digit order is random, the number of possible combinations is limited, and the number of combinations that are repeated for the same number will be further reduced, and the number may be stolen. Can not wipe.

  In addition, the method of randomly changing the arrangement and display position of the numeric keys supplements the password by memorizing the PIN code that the householder himself repeats every day as a trigger for the input operation. If the arrangement order and the display position of are changed, there is a concern that in the daily operation of the housekeeper himself, the user may inadvertently deteriorate the usability by causing confusion such as accidental operation mistakes or suddenly forgetting.

  In the present invention, in order to solve the above-described problem, in an alarm device that communicates with at least one terminal device that detects a steady state and a non-steady state, the alarm device uses a password key input screen. A security key input unit for inputting a key, and a control unit for authenticating the security key input from the security key input unit and determining whether or not a predetermined operation of the alarm device can be performed, and communication contents from the terminal device When the password is different from the predetermined sequence, a password key function for irregularly changing the display state of the password key input screen is provided.

  In this way, if the operation location sequence of the switch operation of the alarm device until the installation location of the terminal device that detected the unsteady state or the screen for entering the security code is different from usual, other than the invaders and other householders Because it is possible that the person is stealing the security code, changing the security key input screen only in these cases will not impair the convenience of daily operation The security key is prevented from being stolen by making it impossible to specify the security key constituting the security code from scratches or dirt on the screen.

  As described above, according to the present invention, the personal identification key leaks from dirt such as aged scratches and fingerprint marks without impairing the convenience of the daily password input operation of the householder or complicating the personal identification key. An alarm device and a program that can reduce the concern can be provided.

  According to a first aspect of the present invention, there is provided an alarm device that communicates with at least one terminal device that detects a steady state and an unsteady state. The alarm device uses a secret key input screen to input a secret key. An input unit; and a control unit that authenticates a password key input from the password key input unit and determines whether or not the predetermined operation of the alarm device can be performed, and communication content from the terminal device is different from a predetermined sequence In some cases, the personal identification key input screen has a personal identification key function for irregularly changing the display state of the personal identification key input screen. As a result, it is possible to reduce the concern that the secret key leaks from dirt such as aged scratches and fingerprint marks without impairing the convenience of the daily password input operation of the householder or complicating the secret key. It has become.

  In the second invention, in addition to the first invention, when the terminal sequence is different from the predetermined sequence, a terminal device installed so as to detect a route other than the predetermined route when the housekeeper enters and leaves the house and the house is not The configuration is such that a steady state is detected. As a result, when a terminal device other than the entrance / exit normally used by a householder detects an abnormality, it can be assumed that the intruder has changed the security key input screen to prevent the security key from being stolen. .

  In addition to the first invention, the third invention is configured such that the case where the operation sequence of the alarm device when displaying the personal identification key input screen is different from the predetermined operation sequence is different from the predetermined sequence. As a result, when an alarm device is operated differently from a normal one, it is possible to prevent the theft of the secret key by changing the secret key input screen assuming an intruder.

  In the fourth aspect of the invention, in addition to the first aspect of the invention, the change that changes the display state of the input screen changes the relative position of the personal identification key input screen with respect to the display screen. As a result, the correspondence between the code key and the part such as a scratch or a stain on the screen is not attached, and the code key is difficult to leak.

  In the fifth aspect of the invention, in addition to the first aspect of the invention, changing the display state of the input screen irregularly changes the order of the personal identification keys in the personal identification key input screen. As a result, the correspondence between the personal identification key and a portion such as a scratch or a stain on the screen is not provided, and the personal identification key is hardly leaked.

  The sixth invention is a program for causing a computer to execute at least one means of the alarm device according to any one of the first to fifth inventions. According to this configuration, since it is a program, it is possible to easily realize at least a part of the alarm device of the present invention by cooperating hardware resources such as an electric / information device and a computer. In addition, by recording on a recording medium or distributing the program using a communication line, the program can be easily distributed / updated and installed.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a block diagram showing an example of a configuration of an alarm device according to Embodiment 1 of the present invention.

  The main control unit 1 in FIG. 1 controls the entire alarm device, and includes a microcomputer, a program, and its peripheral circuits. The graphical user interface unit 2 (hereinafter referred to as GUI unit 2) displays a dialogue operation screen with the user on the display device 3, and arranges image part objects such as buttons, icons, figures and the like such as numeric keys according to the program. In addition, it manages attributes such as the display coordinates and size of the image component object, the type and thickness of the boundary line, the background color and the front color. A password key input screen is also displayed on the display device 3 by the GUI unit 2.

  The touch panel 4 is configured to output a resistance component in the vertical and horizontal directions by applying a resistance film to the front surface portion of the display device 3 constituted by a liquid crystal or a cathode ray tube. Since the resistance components in the vertical direction, that is, the Y direction, and in the horizontal direction, that is, the X direction from the touch panel 4 change in accordance with the pressing position of the user, the resistance components are converted into voltage signals by the coordinate conversion unit 6. Are converted into XY coordinates and input to the GUI unit 2 via the main control unit 1.

  The communication unit 8 communicates with a terminal device such as a human sensor or an open / close sensor, and when the terminal device transmits a message indicating that an intruder has been detected, the communication unit 8 receives the message and inputs it to the main control unit 1. To do.

  In the above description, the GUI unit 2, the coordinate conversion unit 6, the password authentication unit 7, and the communication unit 8 may be configured as programs that operate on the same microcomputer as the microcomputer that operates the program of the main control unit 1. I do not care.

  Next, FIG. 2 is an example of a personal identification key input screen according to Embodiment 1 of the present invention, which is an example of a screen used for a user to input numeric information such as personal identification number and telephone number.

  A shaded frame surrounding characters such as “1”, “2”, “3”..., “Decision”, “cancel”, and the like shown in 11 to 16 in FIG. 2 is an example of an image part object indicating a button. The GUI unit 2 manages attributes such as the size, shape, and color of each image component object, and passes the identification ID and attribute of the image component object from the program of the main control unit 1 to the GUI unit 2. Displayed on the screen. The processing to be performed when each image component object is pressed and selected is stored in the main control unit 1 with a corresponding execution program using the identification ID of the image component object as a key.

  For example, when the image part object 15 is pressed, a program for displaying and storing the ASCII code “2” in the text display field 10 is stored, and “determine” of the image part object 12 is selected. Stores a program for inputting the numeric string displayed in the text display field 10 to the personal identification key authenticating unit 7 as a personal identification number.

  The password authentication unit 7 in FIG. 1 makes a determination by comparing the input password with the password stored in the password, and returns the determination result to the main control unit 1. Based on this determination result, the main control unit 1 determines whether or not to execute a process to be executed next, such as releasing an alarm according to the determination result.

  FIG. 3 shows an example in which the personal identification key input screen 17 shown in FIG. 2 is displayed on the screen of the display device 3, which is displayed in a pop-up with a screen size smaller than the screen size of the display device 3. Is displayed based on the coordinates of the upper left corner determined by.

  For example, it is determined whether or not the message received by the communication unit 8 from the terminal device is a message transmitted from the predetermined terminal device by the main control unit 1, and the determination result is input to the screen position determination unit 5. When the determination result is not a predetermined terminal device, the screen position determination unit 5 displays the password key input screen 19 at a display position different from the password key input screen 18 at the normal display position shown in FIG.

  Therefore, even if a family member registers a personal identification number “1111” and uses it every day, and the scratch key or the “1” portion of the personal identification key input screen 18 is scratched or soiled, this position is displayed on the personal identification key input screen 19. Thus, there is no number key displayed corresponding to, and it is possible to prevent the risk of leakage of information related to the theft of the password, such as using the “1” key as part of the password.

  The operation flow of this operation will be described below using the flowchart of FIG.

  First, an example in which a normal householder returns home and cancels the alarm will be described. Now, after going out with the alarm device of this embodiment set to the detection mode, when returning home and entering the house, terminal devices such as human sensors attached near the entrance and open / close sensors attached to the entrance door react. Then, a message indicating that the intruder has been reported is transmitted to the alarm device (step 21).

  The alarm device enters a countdown of a predetermined alarm delay time such as a preset one minute to several minutes (step 22). The family member displays a password key input screen for canceling the warning within the delay time by operating a predetermined button (step 23).

  The alarm device determines that it is within the delay time (step 24), determines that the terminal device that transmitted the message is a terminal device (predetermined terminal device) laid at the entrance (step 25), and predetermined buttons Is determined to display the password key input screen (step 26), and the normal password key input screen is displayed at the normal position (step 27). The family member inputs the security code using the displayed security key input screen familiar to daily use (step 29), the security code is correctly authenticated (step 30), and the alarm is issued (step 33).

  Next, in FIG. 5, when an intruder enters from a window or the like, a detection telegram is transmitted from an alarm device such as a human sensor laid on the window to the alarm device (step 21). The alarm device determines that the transmission is from a device other than the predetermined terminal device laid at the entrance (step 25), and displays a password key input screen different from the password key input screen normally used by the householder (step 25). 28). This reduces the risk that information related to the PIN will be read due to screen smudges or scratches, etc. While the intruder cannot authenticate by entering the correct PIN, the number of incorrect PINs entered may exceed the specified number ( Step 31), a predetermined delay time is exceeded (Step 24), and an alarm is issued (Step 32).

  Also, even if an entry is made through the entrance set to a predetermined terminal device, the display screen 3 that is normally turned off is normally turned on again until the PIN key input screen is displayed. After that, it is necessary to perform several steps such as selecting a “warning menu” and touching a key for displaying a secret key input screen. Each operation such as relighting the display screen 3 that has been turned off can be relighted by pressing any part of the touch panel 4 or by pressing a push button attached to the alarm device. In many cases, it has several operation methods such as a method.

  For this reason, when the operation for displaying the personal identification key input screen is different from the predetermined operation that the householder performs daily, this is judged (step 25), and the personal identification key input screen normally used by the householder is determined. It is also possible to display a secret key input screen different from the above.

  Further, as another display method other than changing the display position of the personal identification key input screen to an irregular position as shown in FIG. 3, a screen for selecting a function other than the personal identification number, for example, a thin line on the display screen 3 of FIG. A password key input screen may be displayed at a position that overlaps the button position of another screen, such as a warning processing setting screen as shown. In particular, if you overlap with frequently used keys such as the “Menu” key or the “Back” key to return to the previous screen, you can operate any screen even if the screen is dirty or scratched. It is difficult to determine whether the number is the one used for the password because it cannot be identified.

  Note that the label displayed as the personal identification key is not limited to numbers, and may of course include alphabets, symbols such as “#”, and patterns associated with specific codes.

  In the description of FIG. 3 above, in the example in which the password key input screen is displayed at a display position different from the normal display position, only the display position of the same password key input screen is changed. It is also effective to make the input screen itself a different format, such as a screen in which the number keys are arranged randomly, or a dummy screen in which the number of digits of the PIN code can be input at a predetermined 4 digits or more.

  In addition, when a device other than the predetermined terminal device reacts or when the PIN key input screen is displayed other than the predetermined operation, it is possible to configure so that the alarm itself cannot be canceled at all. Since it is considered that the householder may perform an operation different from that of daily life, in the present embodiment, the configuration has been described in which the alarm can be canceled even if the correct password is input even on the password key input screen that is different from the normal password.

  As described above, according to the present invention, the secret key is leaked due to dirt such as aged scratches and fingerprint marks without impairing the convenience of the daily password input operation of the householder or complicating the secret key. It can be applied to an alarm device that can reduce the concern about

The block diagram which shows an example of a structure of the information apparatus of Embodiment 1 of this invention Schematic diagram illustrating an example of a personal identification key input screen according to the first embodiment. The figure which shows an example which displays the PIN key input screen of Embodiment 1 in a different position The figure which shows another example which displays the PIN key input screen of Embodiment 1 in a different position Schematic flowchart showing an example of the operation of the information device according to the first embodiment.

Explanation of symbols

1 Main control unit (control unit)
2 GUI part (PIN key input part)
3 Display device (PIN key input screen)
4 Touch panel (PIN key input part)
5 Screen position determination part (PIN key input part)
6 Coordinate conversion part (PIN key input part)
7 PIN authentication unit (control unit)
17, 18, 19 PIN key input screen

Claims (6)

In an alarm device that communicates with at least one terminal device that detects a steady state and an unsteady state, the alarm device includes a password key input unit that inputs a password using a password key input screen, and the password. A control unit that authenticates a personal identification key input from a key input unit and determines whether or not to execute a predetermined operation of the alarm device, and when the communication content from the terminal device is different from a predetermined sequence, the personal identification key An alarm device with a secret key function that irregularly changes the display state of the input screen. The case where a terminal device installed so as to detect a route other than a predetermined route when a householder enters and leaves the house and inside the house detects a non-steady state when the sequence differs from the predetermined sequence. Alarm device with password function. 2. The alarm device having a password key function according to claim 1, wherein when the password is different from the predetermined sequence, the operation sequence of the alarm device when displaying the password key input screen is different from the predetermined operation sequence. 2. The alarm device having a secret key function according to claim 1, wherein changing the display state of the input screen irregularly changes a relative position of the secret key input screen with respect to the display screen. 2. The alarm device having a secret key function according to claim 1, wherein the irregularly changing the display state of the input screen changes the order of the secret keys in the secret key input screen. A program for causing a computer to execute at least one means of an alarm device comprising the personal identification key according to any one of claims 1 to 5.

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