JP2003193719A - Collating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a collating device with high security. <P>SOLUTION: An input 5 part comprises a plurality of input keys 6 for displaying hiragana characters, a clear key C for correcting an erroneous input, and an enter key E for transmitting an input end signal to a controller 4. Signs displayed on the input keys 6 are the hiragana characters selected from the 50 characters by the controller 4, and the selected characters are displayed on the input keys 6 on a random basis. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collating device used for unlocking an electric lock attached to a front door, for example.

[0002]

2. Description of the Related Art As one of locking methods for locking a door or the like, locking by an electric lock is known. This electric lock is locked or released by electronic control. A controller is connected to the electric lock as described above, and an input unit is connected to the controller. A plurality of numeric keys are provided in the input section, and when any one of the plurality of numeric keys is selected, this is transmitted to the controller as a selection signal. The controller that has been sent the selection signal,
The electric lock is unlocked on condition that the selection signal and the personal identification number match.

FIG. 4 is an overall schematic diagram of the input unit 1. The input unit 1 includes a plurality of numeric keys 2 on which numbers 0 to 9 are displayed, a clear key C for correcting an erroneous input, and an enter key E for determining an input and transmitting a signal to a controller. It has and. The clear key C and the enter key E are fixed at the positions shown in the figure, but the arrangement is such that the numbers displayed on the number keys 2 are changed each time they are displayed. The reason why the arrangement of the numbers is changed each time the numbers are displayed will be described below.

For example, the personal identification number is set as a 4-digit number. Since the personal identification number is set with a four-digit number in this way, when the electric lock is released, the same four numbers are always pressed. Thus, when the same number is always pressed, the pressed number key becomes dirty or worn compared to other number keys. In this way, if the number key serving as the personal identification number is dirty or worn out compared to other number keys, it becomes easier for a thief who tries to enter this house to decipher the personal identification number of the electric lock.

On the other hand, if the arrangement of the numbers displayed on the number keys 2 of the input unit 1 is changed, the number keys 2 pressed each time are different, so that the number keys 2 as a whole become dirty or worn. To do. Therefore, it is possible to prevent only the specific numeric key 2 from getting dirty, and it is possible to prevent the personal identification number of the electric lock from being easily deciphered just by looking at the numeric key 2.

When trying to unlock the electric lock in the input section 1 as described above, a number which is a personal identification number is selected from a plurality of numbers displayed on the number keys 2 and is pushed, Press enter key E. When the enter key E is pressed in this manner, this selection signal is transmitted to the controller (not shown). The controller collates the personal identification number with the selection signal of the numeral, and if they coincide with each other, unlocks the electric lock.

[0007]

When setting the above-mentioned personal identification number with a four-digit number, there are 9999 combinations, but it is necessary to press a plurality of number keys 2 displayed on the input section 1 appropriately several times. There is a possibility that the above-mentioned personal identification number will be decrypted. In addition, since it is difficult to remember a personal identification number consisting of numbers, it is often the case that the personal identification number is set as it is, or it is set by word matching. Therefore, a thief or the like can predict the personal identification number to some extent, and the personal identification number can be more easily deciphered. As described above, the conventional collation device has a problem that a thief or the like may unlock the electric lock, and high security cannot be obtained.

For the above problems, it is possible to increase the number of digits in the personal identification number. When the number of digits of the personal identification number is increased in this way, the number of combinations of the personal identification number is increased, and accordingly, it becomes difficult to decipher. However, as the number of digits increases, it becomes more difficult for users to remember, which is not practical.

An object of the present invention is to provide a collation device with high security.

[0010]

According to a first aspect of the present invention, there is provided a controller for unlocking an electric lock, an input unit connected to the controller, and a plurality of units for displaying symbols such as letters, numbers and motifs on the input unit. An input key is provided, and by pressing the input key, the selection signal of the symbol displayed on the input key is transmitted to the controller, and the controller randomly selects from the symbols each time the selection signal is transmitted. It is characterized in that some symbols are selected and displayed on the input key, and when the selection signal of the input key matches the code stored in the controller, the lock of the electric lock is released.

According to a second aspect of the invention, the controller compares the selection signal with the cipher for each symbol, and when the selection signal matches the symbol contained in the cipher, the symbol contained in the cipher is: Characters other than the symbols matching the selection signal are displayed on the input key, and when the selection signal and the symbol included in the code do not match, the symbols are randomly selected and displayed on the input key. And The third invention is characterized in that symbols such as letters, numbers and motifs are used for encryption. The symbols used in the first to third inventions include characters, numbers, or motifs such as pictures.

[0012]

1 and 2 show an embodiment of a collating device according to the present invention. As shown in FIG. 1, an electric lock (not shown) is provided on the door 3, and the electric lock and the controller 4 are connected. Further, the controller 4 stores a code for unlocking the electric lock in advance, and hiragana is used as the code. Further, the controller 4 is connected to an input unit 5 installed outdoors.

In addition, the input unit 5 has a structure shown in FIGS.
As shown in (c), a plurality of input keys 6 for displaying hiragana, a clear key C for correcting an erroneous input, and an enter key E for transmitting an input end signal to the controller 4 are provided. . The symbol displayed on the input key 6 is a hiragana character selected by the controller 4 from the Japanese syllabary characters of "a" to "n", and the selected hiragana character is randomly displayed on the input key 6. I am trying to display it. The clear key C and the enter key E are fixedly displayed at the positions shown in the figure.

Further, when the input key 6 is pressed, a selection signal is transmitted to the controller 4, and the controller 4 collates the selection signal and the coded characters one by one. The first shown in FIG. 2 (a)
The first character of the code is collated on the screen, the second character is collated on the second screen shown in FIG. 2B, and the third character is collated on the third screen shown in FIG. 2C. Furthermore, the hiragana displayed on each of the above screens is changed for each screen. Further, the controller 4 determines the hiragana to be displayed on the input key 6 of the next screen, based on the result of collation of the selection signal and the cipher character. The operation of the controller 4 will be described in detail below.

The controller 4 displays the first screen as shown in FIG. 2A on the input section 5. The first character of the code is always displayed on the first screen. When the first screen as described above is displayed, one input key 6 is selected by the user from the plurality of input keys 6 displayed on the first screen, and the selection signal is transmitted to the controller 4. To be done. The controller 4 determines whether this selection signal matches the first character of the code. Then, when this selection signal matches the first character of the cipher, the hiragana that matches the second character of the cipher is selected from the 50 sounds of "a" to "n", and this is entered on the input key 6 of the second screen. To display. That is, the controller 4 displays the next character of the cipher on the next screen when the input selection signal is correct.

On the other hand, if the selection signal does not match the code, the controller 4 randomly selects all the hiragana to be displayed on the next screen and causes the input key 6 to display this. Therefore, the displayed hiragana may not include the correct character. In this way, enter key 6
If the correct character is not displayed in, the user who presses the input key 6 by mistake will notice the mistaken pressing. Further, by displaying the randomly selected characters as described above, a thief who does not know the code does not notice the input error. You can camouflage this thief and keep high security by continuing to input it while the thief does not notice the mistake.

As described above, the user presses the enter key E after inputting selection signals corresponding to all the characters of the code. Thus, when the user presses the enter key E,
The input end signal is transmitted to the controller 4, and the controller 4 releases the electric lock.

Next, a specific operation method will be described. Here, a case will be described in which the controller 4 stores a code "I, L, or". The controller 4 selects the hiragana to be displayed on the first screen from the characters "a" to "n". Further, since there are 10 input keys 6, the controller 4 selects 10 kinds of characters. At this time, the controller 4 always selects the character "i", which is the first character of the cipher, and randomly selects the other nine characters from the other characters. Then, as shown in FIG. 2A, the controller 4 is
The "i" character and the other nine characters are displayed on the hiragana input key 6. At this time, each character is arranged randomly.

When the hiragana is displayed as described above, the user selects the input key 6 from which "i" is displayed.
Select. When the user selects the "I" input key 6, this is input to the controller 4 as a selection signal. The controller 4 to which the selection signal is input in this way
Determines whether the selection signal matches the first character of the code. Then, when the selection signal and the code match, the second screen as shown in FIG. 2B is displayed.
That is, the controller 4 selects the second character “ru” of the cipher from the hiragana characters “a” to “n” and also randomly selects nine other characters. Then, the ten characters thus selected are displayed on the input key 6. At this time, the arrangement of each character is also random.

From the second screen displayed as described above, the user presses the input key 6 displaying the second character "ru" of the code. In this way, when the user presses the "ru" input key 6, this selection signal is transmitted to the controller 4. The controller 4 collates the selection signal with the second character of the code.

As a result of the comparison between the transmitted selection signal and the set cipher, if they match, the controller 4 creates a third screen as shown in FIG. 2 (c). That is, "ka", which is the third character of the code, is selected from "a" to "n". Furthermore, nine characters are randomly selected from the other characters. Then, the character “ka” and nine characters selected at random are displayed on the input key 6. At this time, the arrangement of each character is also made random.

From the third screen displayed as described above, the user presses the input key 6 of "ka" which is the third character of the code. In this way, when the "?" Input key 6 is pressed, this selection signal is transmitted to the controller 4, and the controller 4 collates the selection signal with the third character of the code.

When all the ciphers have been pressed through the first to third screens as described above, the user presses the enter key E. Thus, when the enter key E is pressed, this is transmitted to the controller 4 as an input end signal.
When this input end signal is transmitted and the results of the above-mentioned matching match, the controller 4 releases the lock of the electric lock.

On the other hand, when the selection signal and the cipher character do not match, the controller 4 randomly selects all 10 hiragana to be displayed on the input key 6 from "a" to "n". This is displayed on the input key 6. Further, the controller 4 displays the randomly selected hiragana on the input key 6 until the enter key E is pressed even when the selection signal and the code do not match as described above. When the enter key E is pressed and the input end signal is input to the controller 4, the controller 4 displays an error message.

As described above, even when the selection signal that does not match the code is transmitted, until the enter key E is pressed,
By displaying the next screen, security can be further improved. Because, for example, if an error message is displayed at the time when the selection signal does not match the code, while repeating this many times, which character is wrong, the thief trying to decipher the code etc. There is a possibility of being overlooked. On the other hand, even if an incorrect selection signal is input, by displaying the next screen, the thief does not know in what screen he made a mistake. Therefore, security can be improved.

Since the error message is displayed only after the enter key E is pressed as described above, a thief or the like cannot know how many characters the code is. Therefore, only the person who knows the code can unlock the electric lock. That is, even if the input key is pressed appropriately as in the conventional case, it is very unlikely that it matches the code, and the user can obtain high security.

If the user makes a mistake in pressing the input key 6 and the hiragana corresponding to the cipher intended to be pressed is not displayed on the next screen, the user makes a mistake in pressing the key. Notice that. In this way, when the user notices that the input key 6 has been pressed incorrectly, the user can press the clear key C to input again from the first screen.

As described above, according to this embodiment, 5
Since a cipher can be set from hiragana with 0 sounds, the number of kinds of ciphers by the combination of hiragana becomes very large. As the number of types of ciphers increases in this way, it becomes difficult for the ciphers to be deciphered, and high security can be obtained.

Moreover, since the above-mentioned code can be set in hiragana, the user can use the names of favorite animals and foods as the code. Since you can use the names of your favorite animals and food as a code,
It is very easy for users to remember this code, and it is hard to forget. In addition, by making the names of animals and foods that the user likes the code, it becomes difficult for a thief to predict the code. Therefore, as compared with the conventional example in which one's birthday or the like is used as an encryption code, the encryption is more difficult to decipher. Furthermore, since the above cipher is easy to remember, even if the cipher is set to be long, the cipher will not be forgotten. In addition, the longer the cipher, the higher the security.

Since the hiragana displayed on the screen is changed every time the input key 6 is pressed, the effect of confusing a thief who does not know the code can be expected.
When the thief becomes confused in this way, the thief will not enter the house in which the above-mentioned verification device is installed. That is, it is possible to exert a deterrent effect on the thief and the like.

Further, in the above embodiment, the ciphers are set in hiragana. However, in hiragana,
Obviously, it may be possible to include a voiced sound such as "ga" or "ba" or a semi-voiced sound such as "pa". Furthermore, the above-mentioned code may be set in alphabets or kanji, or may be set in motifs such as pictograms. Further, as shown in FIG. 3, this cipher may be set by combining hiragana, alphabets, pictograms, numbers and the like. In this way, by increasing the population for setting the ciphers, the kinds of ciphers also increase. As the number of types of ciphers increases in this way, it becomes more difficult to decipher,
Security can be increased.

Furthermore, the correct character is always included in the first screen, but the correct character may not be included in the first screen. Also, when the correct answer is pressed on the 1st screen, the hiragana displayed on the 2nd screen always includes the correct answer, but like the 1st screen, it also includes the correct answer. You don't have to. In this way, when there is no correct character in the displayed hiragana, the user presses the next screen display button to display the next screen. Then, this may be repeated until a screen including the correct character is displayed, and when the screen including the correct character is displayed, the correct character may be pressed. By doing so, higher security can be obtained.

[0033]

According to the first aspect of the invention, each time the selection signal is transmitted, the controller randomly selects some symbols from the symbols and displays them on the input key. Therefore, many kinds of symbols can be displayed on the input key. Therefore, it becomes difficult for a thief who tries to decipher the code, and the user of the electric lock can obtain high security.

According to the second invention, the controller collates the selection signal with the code for each symbol, and when the selection signal matches the symbol included in the code, inputs the symbol included in the code. Display on the key. On the other hand, when the above selection signal and the symbol included in the code do not match, the symbol is randomly selected and displayed on the input key. Press and when this was wrong,
The thief doesn't know which symbol he or she made a mistake in. Therefore, the security can be further enhanced.

According to the third invention, since symbols such as letters, numbers and motifs are used for encryption, the number of types can be increased more than when the encryption is set only by numbers. it can. Therefore, the encryption is difficult to be decrypted, and the security becomes higher. In particular, setting a cipher using characters makes it easier to remember the cipher.

[Brief description of drawings]

FIG. 1 is an overall schematic view of the present invention.

FIG. 2A is a diagram showing a first screen of the input unit. (B) It is the figure which showed the 2nd screen of an input part. (C) It is the figure which showed the 3rd screen of an input part.

FIG. 3 is a diagram showing another screen of the input unit.

FIG. 4 is a diagram showing a screen of a conventional input unit.

[Explanation of symbols]

3 doors 4 controller 5 Input section 6 Input key

Claims (3)

[Claims] 1. A controller for unlocking an electric lock, an input section connected to the controller, and a plurality of input keys for displaying symbols such as letters, numbers and motifs on the input section. By pressing, the selection signal of the symbol displayed on this input key is transmitted to the controller, and each time the selection signal is transmitted, the controller randomly selects some symbols from the above symbols and A collating device which is displayed on the input key and unlocks the electric lock when a selection signal of the input key matches a code stored in the controller. 2. The controller compares the selection signal with the cipher for each symbol, and when the selection signal matches the symbol included in the cipher, it is the symbol included in the cipher and the selection signal A character other than the matched symbols is displayed on the input key, and when the selection signal does not match the symbol included in the code, the symbol is randomly selected and displayed on the input key. 1. The matching device described in 1. 3. The collation device according to claim 1, wherein symbols such as letters, numbers and motifs are used for the encryption.