JP2008303640A - Personal identification code input panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the durability by averaging the number of use of a switch while making inference of a personal identification code difficult and to prevent the personal identification code from being illegally read. <P>SOLUTION: A number display part 2 displays the numbers of 0 to 9 in the arrangement of ten keys determined in advance one by one per display division among a plurality of matrix display divisions. As for a transparent switch part 3, keys are arranged in a one-to-one correspondence to each display division in the number display part 2. A control part 5, counting the number of presses of the relevant keys when either of the keys on the transparent switch part 3 is pressed each time, lights and displays a predetermined number of the display divisions of the number display part 2 corresponding to the keys in less order of the number of presses. When all the keys in the transparent switch part 3 corresponding to the lit and displayed display division are pressed down, all the display divisions in the number display part 2 are lit and displayed to be in a condition for waiting for a personal-identification-code input. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a code input board for an electric lock and an activation device for an important system device, and more particularly to a code input board for improving safety and operability of an electric lock or the like.

  For example, in the case of locking and unlocking an electric lock using a password, the password is usually input from an input panel provided at the door.

  As this input panel, for example, LEDs (light emitting diodes: below) configured to display Arabic numerals from 0 to 9 and two control codes in each of a total of 12 display sections of 4 rows and 3 columns. LED). In this input panel, a display is pushed with a finger through a transparent key switch panel superimposed on an LED, and the display is supplied as a code to the control circuit of the electric lock.

  By the way, in this type of input panel, a certain display section constitutes a secret code by another person as a display unit in which a certain display section constitutes a personal identification code due to finger sweat or fingers adhering to the key switch panel in the short term, or abrasion in the long term due to friction. Therefore, there is a risk that the code code corresponding to the display unit is permuted and combined to make the secret code known to others.

  In order to solve the above problem, for example, a password input board disclosed in the following Patent Document 1 and Patent Document 2 has been proposed.

  As shown in FIG. 4, the password input board 21 disclosed in Patent Document 1 includes a display panel 22, a transparent key switch sheet (not shown), a display conversion unit 23, and a code reading unit 24. The display panel 22 displays m × n code groups expanded in a fixed arrangement pattern of m rows and n columns (m, n: a positive integer of 2 or more) with a non-display portion arranged around them. Therefore, it has M × N display sections arranged in a grid of M rows and N columns (M and N are positive integers larger than m and n, respectively). A transparent key switch sheet (not shown) is superposed on the surface side of the display panel 22 and has a switch corresponding to each of the M × N display sections. The display conversion means 23 is obtained by moving the m × n code group within the display panel 22 while maintaining the arrangement pattern for each operation of the electric lock (M−m + 1) × (N−n + 1). One of the seed display forms is selected. The code reading means 24 in the display form of one of the m × n code groups touches the display section displaying the selected code with a finger through the transparent key switch, and displays the selected code. A binarized code signal that distinguishes from other codes is output.

  In the code input board 21, the function of the display conversion means 23 makes it possible to display a display having M × N display sections while maintaining the arrangement pattern of the m × n code group for each locking / unlocking operation of the electric lock. It moves within the panel 22 and changes the display position within the display panel 22. At this time, a non-display portion is generated around the code group.

  Also, the code input board 31 disclosed in Patent Document 2 includes a number display unit for displaying a plurality of numbers in Arabic numerals 0 to 9, a transparent switch unit provided on the front surface of the number display unit, and these number displays. And a control device to which the transparent switch unit is connected. As shown in FIG. 5, in the code input board 31, when any key of the transparent switch unit is operated as a starting point (circle in the figure) to activate the number display unit, the operated transparent Numbers are sequentially arranged and arranged on the number display section from the position corresponding to the switch section. In addition, when the starting point is selected and operated continuously n times (where n is a positive integer of 2 or more), the number is displayed from the position adjacent to the position corresponding to the operated transparent switch section. Arrange sequentially on top.

As described above, in the conventional code input board, the arrangement and arrangement of the numeric keys are changed to make the code code keys dirty and worn uniformly.
JP-A-5-346833 JP-A-10-121804

  By the way, in the conventional code input board 21 disclosed in Patent Document 1 described above, for each lock / unlock operation of the electric lock, mxn code groups display MxN displays while maintaining the arrangement pattern. Since it moves within the display panel 22 having a section and changes the display position in the display panel 22, there is a problem that the input panel itself is enlarged and installation space is restricted.

  Further, in the conventional code input panel 31 disclosed in Patent Document 2, the ten key layout changes depending on the starting point of the key that is pressed first. There was a problem of taking time and effort.

  Furthermore, the conventional code input board disclosed in Patent Document 1 and Patent Document 2 uses display circuits that change the arrangement and arrangement of the numeric keys, but these display circuits themselves are complicated and inexpensive. Could not provide an input device.

  Therefore, the present invention has been made in view of the above-mentioned problems.The number of times each key is used is averaged to improve the durability of the switch, and the dirt and wear of the key are made uniform to analogize the password. An object of the present invention is to provide an inexpensive code input board that is difficult and can prevent unauthorized decoding of the code.

In order to achieve the above-described object, the personal identification code input device according to claim 1 is configured such that a different number is selectively assigned to each display section of a plurality of display sections in a matrix form with a predetermined numeric keypad arrangement. A number display that can be lit on
A transparent switch unit provided on the front surface of the number display unit, wherein keys are arranged in one-to-one correspondence with the display sections of the number display unit;
Each time the key of the transparent switch unit is pressed, the number of times of pressing for each key is counted, and when any key of the transparent switch unit is pressed, When a predetermined number of display sections of the number display section corresponding to the keys are lit and displayed, and all of the keys of the transparent switch section corresponding to the display sections that are lit and displayed are pressed, all the display sections of the number display section And a control unit that turns on and displays the display section.

  According to the PIN code input device of the present invention, since a key other than the key used for PIN code input is also used, the number of times each key is used can be averaged to improve the durability of the switch, and the entire key is soiled. The wear and tear is also uniformed, and it is difficult to analogize the password, and the security code can be improved by preventing unauthorized decryption of the password. In addition, when the code is input, the number is lit and displayed with a predetermined numeric keypad arrangement, so that it does not take time to input the code. Furthermore, since the display section of the number display section corresponding to the key that is pressed less frequently is only lit before the password is input, an inexpensive input device can be provided without complicating the display circuit itself as in the prior art. .

  The best mode of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram showing an electrical configuration of a password code input board according to the present invention, FIG. 2 is an exploded view showing a schematic configuration of the password code input board according to the present invention, and FIG. 3 is a password code input board according to the present invention. It is an operation | movement flowchart at the time of input of a PIN code.

  As shown in FIG. 1, the code input board 1 of this example is schematically configured to include a number display unit 2, a transparent switch unit 3, a storage unit 4, a control unit 5, and a data input / output unit 6.

  The number display unit 2 is composed of, for example, an LED or a liquid crystal, and a different number (including a control code) is selectively selected for each display section with a predetermined numeric keypad arrangement for a plurality of matrix display sections. Can be displayed. Specifically, the number display unit 2 shown in FIG. 2 displays a total of 4 rows and 3 columns in order to display Arabic numerals 0 to 9 indicating the number of the numeric keypad and two control codes (*, #). It has 12 display sections. Then, in the password input waiting state, Arabic numerals 1, 2, and 3 from the left are lit on the first display section from the top and displayed on the second display section by display control of the control unit 5 described later. Arabic numerals 4, 5, and 6 are lit and displayed from the left, Arabic numerals 7, 8, and 9 are lit and displayed from the left in the third display area, and the control code * is displayed from the left in the fourth display area. , Arabic numeral 0 and control code # are lit up. Arabic numerals and control codes are selectively lit and displayed by display control of the control unit 5 described later when any key of the transparent switch unit 3 is pressed.

  The transparent switch unit 3 is provided on the front surface of the number display unit 2 and has a plurality of keys that are pushed by the user. In the transparent switch unit 3 of this example, a total of 12 keys of 4 rows and 3 columns are arranged in a matrix corresponding to each display section of the number display unit 2 on a one-to-one basis. The transparent switch unit 3 and the number display unit 2 are electrically connected to the control unit 5, respectively. As shown in FIG. 2, a transparent protective sheet 7 for protecting the transparent switch unit 3 is provided on the front surface of the transparent switch unit 3.

  The storage unit 4 sequentially updates and stores the number of times each key of the transparent switch unit 3 is pressed, which is counted by a counting unit 11 of the control unit 5 described later.

  As shown in FIG. 1, the control unit 5 includes a counting unit 11, a determination unit 12, a lighting section determination unit 13, and a display control unit 14.

  The counting means 11 counts the number of times of pressing for each key when the key of the transparent switch unit 3 is pressed. The counted number of times of pressing for each key is sequentially updated and stored in the storage unit 4.

  As shown in FIG. 1, the determination unit 12 includes an initial press determination unit 12a, a lighting key press determination unit 12b, and a password input determination unit 12c. The initial pressing determination unit 12a determines whether any key of the transparent switch unit 3 is pressed in a state where all the display sections of the number display unit 2 are turned off, and the arbitrary key is pressed. At this time, a determination signal indicating that there is an initial press is output to the lighting section determination means 13.

  The lighting key press determination unit 12b determines whether all of the keys of the transparent switch unit 3 corresponding to the display section of the number display unit 2 determined and turned on by the lighting section determination unit 13 described later have been pressed within a predetermined time. When all the keys corresponding to the lighting display are pressed within a predetermined time, a determination signal indicating that the lighting key is pressed is output to the password input determination means 12c. The determination signal indicating that the lighting key has been pressed is also output to the lighting section determining means 13.

  The password input determination means 12c is in a state in which a determination signal indicating that the lighting key is pressed is input from the lighting key press determination means 12b (a state where all display sections of the number display section 2 are lit). The key information from the transparent switch unit 3 input until the elapse of time is discriminated as the code information, and the code information is output to the data input / output unit 6.

  The lighting section determination means 13 checks the number of pressings for each key stored in the storage unit 4 and displays the number display unit 2 in a lighting state when a determination signal indicating that there is an initial pressing is input from the initial pressing determination unit 12a. A predetermined number of lighting sections are determined in the order of the keys with the smallest number of pressings, and a lighting command signal based on this determination is output to the display control means 14. In this example, in the number of times of pressing of each key stored in the storage unit 4 by the counting of the counting means 11, the key having the smallest number of times of pressing, such as the key having the smallest number of times of pressing and the key having the smallest number of times of pressing, is next. The lighting section is determined by selecting a predetermined number (a preset number) of display sections of the number display unit 2 corresponding to the keys.

  In determining the predetermined number of lighting sections, the lighting section is selected in preference to the display section of the number display unit 2 corresponding to the key with the smallest number of pressings, and there are a plurality of keys with the same number of pressings. When it does, it is selected at random until it reaches a predetermined number of lighting sections.

  The lighting section determination means 13 determines all the display sections of the number display unit 2 as lighting sections when a determination signal indicating that the lighting key is pressed is input from the lighting key press determination means 12b. Is output to the display control means 14.

  When the lighting command signal is input from the lighting section determining means 13, the display control means 14 lights and displays the display section of the number display unit 2 determined by the lighting section determining means 13.

  The lighting display here refers to the case where a predetermined number of display sections selected by the lighting section determination means 13 are turned on at the same time and the predetermined number of display sections selected by the lighting section determination means 13 are turned on one by one at random. It includes both cases of display.

  Further, when the all lighting command signal is input from the lighting section determining means 13, the display control means 14 lights all the display sections of the number display unit 2, and performs display control in a password input waiting state. .

  The data input / output unit 6 outputs the password code information from the password input determination means 12c to a master unit (not shown). The master unit (not shown) collates the password code information input from the data input / output unit 6 to determine the validity, and when the password code information is normally authenticated, the unlocking command (or locking command) locks the lock. Is controlled to be unlocked (or locked). The password input board 1 fetches the collation result at this time from the data input / output unit 6 and displays the fetched collation result on a display (not shown).

  Next, an operation performed by each unit of the control unit 5 when a password code is input to the password code input board 1 configured as described above will be described with reference to FIG.

  First, the initial press determination unit 12a determines whether any key of the transparent switch unit 3 is pressed in a state where all the display sections of the number display unit 2 are turned off (ST1). When it is determined that any key of the transparent switch unit 3 has been pressed (ST1-Yes), the initial pressing determination unit 12a outputs a determination signal indicating that there is an initial pressing to the lighting section determination unit 13. When a determination signal indicating that there is an initial pressing is input from the initial pressing determining unit 12a, the lighting section determining unit 13 checks the number of pressings for each key stored in the storage unit 4 (ST2), and the number display unit 2 A predetermined number of lighting sections for lighting display are determined in the order of the keys with the least number of times of pressing, and a lighting command signal based on the determination of the lighting sections is output to the display control means 14.

  When the lighting command signal is input from the lighting section determining means 13, the display control means 14 displays a predetermined number of numbers determined in the order of the display section of the number display unit 2 based on this lighting command signal (keys with the smallest number of pressings). Display section) is lit (ST3). Specifically, a predetermined number of display sections determined by the lighting section determining means 13 are turned on simultaneously, or a predetermined number of display sections determined by the lighting section determining means 13 are turned on and displayed one at a time.

  Then, the lighting key press determination unit 12b presses all of the keys of the transparent switch unit 3 corresponding to the display section that is lit up (the display section of the predetermined number determined in the order of the key with the smallest number of presses) within a predetermined time. It is determined whether or not it has been done (ST4). When it is determined that all of the keys corresponding to the lighting display have been pressed within a predetermined time (ST4-Yes), the lighting key press determination unit 12b determines that the lighting key is pressed by the lighting section determination unit 13 and the password input determination unit 12c. Output a signal. In addition, when the plurality of display sections are lit and displayed one by one at random, the order is also determined.

  When a determination signal indicating that the lighting key is pressed is input from the lighting key press determination unit 12b, the lighting section determination unit 13 determines all display sections of the number display unit 2 as lighting sections, and an all lighting command based on this determination. A signal is output to the display control means 14.

  And the display control means 14 will light-display all the display sections (display section of all the numbers) of the number display part 2, if the all lighting command signal is input from the lighting section determination means 13 (ST5). In this state, the code code input mode is entered, and a code code waiting for a predetermined number of digits is awaited (ST6).

  Then, the password input determination means 12c outputs the key information input by the key operation of the transparent switch unit 3 until the predetermined time elapses after waiting for the password to be input to the data input / output unit 6 as the password code information. . This password information is transmitted from the data input / output unit 6 to a master unit (not shown) (ST7).

  In the base unit (not shown), when the code information from the code input determining means 12c is collated to determine the correctness and the code code information is normally authenticated, in response to the unlock command (or lock command) Unlock (or lock) the lock. Then, the code input board 1 receives the collation result from the master unit (not shown) at this time via the data input / output unit 6 (ST8) and displays it on the display (not shown) (ST9).

  In ST4 of the operation of FIG. 3 described above, when it is determined that all of the keys corresponding to the lighting display are pressed within a predetermined time, the process shifts to waiting for the password, but the lighting display is performed within the predetermined time. When it is determined that all of the corresponding keys are not pressed, when a key that does not correspond to the lighting display is pressed, the lighting display is temporarily canceled to return to the initial state (a state where any key of the transparent switch unit 3 is pressed). Anyway.

  Thus, the code input board of this example has the number display section in the order of the keys with the least number of times of pressing each time the transparent switch section 3 is operated with all the display sections of the number display section 2 turned off. A predetermined number of two display sections are lit and displayed, and after the key input of the transparent switch unit 3 corresponding to all the display sections that are lit and displayed, the code is input. As a result, since keys other than those used for PIN code input are also used, the number of times each key is used can be averaged to improve the durability of the switch, and the dirt and wear of the entire key can be made uniform. It is also difficult to analogize the password, preventing unauthorized decryption of the password, and improving crime prevention. Moreover, since the number (display section) of the number display unit 2 is lit in a predetermined numeric keypad arrangement when inputting the password, the original operability of the key input can be utilized without taking time to input the password. Can do. In addition, since only a predetermined number of display sections of the number display unit 2 corresponding to the key that is pressed less frequently are lighted and displayed before inputting the code, the display circuit itself is not complicated as in the prior art, and inexpensive input is possible. Can provide a machine.

  By the way, although the above-described embodiment has been described as a configuration in which the lighting display before inputting the password is performed only once, if the lighting display is performed a plurality of times, crime prevention can be further improved.

It is a block diagram which shows the electric constitution of the PIN code input board which concerns on this invention. It is an exploded view which shows schematic structure of the PIN code input board which concerns on this invention. It is an operation | movement flowchart at the time of the PIN code input of the PIN code input board which concerns on this invention. It is a block diagram which shows the structure of the conventional PIN code input board disclosed by patent document 1. FIG. It is operation | movement explanatory drawing of the conventional PIN code input board disclosed by patent document 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 PIN code input machine 2 Number display part 3 Transparent switch part 4 Memory | storage part 5 Control part 6 Data input / output part 7 Protection sheet 11 Counting means 12 Discriminating means 12a Initial press determination means 12b Lighting key press determination means 12c Password input determination means 13 Lighting section determination means 14 Display control means

Claims (1)

A number display section capable of selectively lighting and displaying different numbers one by one in each display section of a plurality of display sections in a matrix with a predetermined numeric keypad arrangement;
A transparent switch unit provided on the front surface of the number display unit, wherein keys are arranged in one-to-one correspondence with the display sections of the number display unit;
Each time the key of the transparent switch unit is pressed, the number of times of pressing for each key is counted, and when any key of the transparent switch unit is pressed, When a predetermined number of display sections of the number display section corresponding to the keys are lit and displayed, and all of the keys of the transparent switch section corresponding to the display sections that are lit and displayed are pressed, all the display sections of the number display section A password input board comprising a control unit for lighting and displaying a display section.

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