JPH0786933B2 - Coordinate code matching method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a method of collating a secret code given to a specific individual for security purposes.

[Conventional technology]

Conventionally, various methods have been developed and used as a secret code used for security. The most frequently used method among them is the combination of numbers. This method has a low device cost and is often used in our daily lives, but it has a drawback that the personal identification number is immediately known when, for example, the user is able to see the operation.

The magnetic card method uses a card in which a personal code is written by inserting it into a verification device and is inexpensive, but it is easy to forge and there is a risk that a lost card can be picked up and used by a third party. Moreover, the contents (personal code, etc.) could be destroyed by the strong magnetic field.

In addition, the fingerprint collation method is a method of collating with a fingerprint registered in advance to confirm that the person is who he / she is. Since the collating device needs to read the fingerprint and perform image processing, the price of the device is very high. Become.

[Problems to be Solved by the Invention]

The present invention has the drawbacks of the above-mentioned conventional techniques, that is, the secret code by the combination of numbers is easy to be stolen, the fingerprint collation method is not versatile and extremely expensive, and the magnetic card method is inexpensive but forgery is impossible. It is simple, and if it is lost, there is a risk that it will be used by a third party, and that the secret code is easily destroyed.

SUMMARY OF THE INVENTION In order to eliminate the above problems, an object of the present invention is to provide a versatile personal identification collation method that is less likely to be plagiarized or counterfeited, the cost of the collation device is low.

[Means for Solving the Problems]

The present invention, in order to solve the above problems, in a password collation method, the password collation means is configured by a control unit including a microprocessor and a memory, and an operation unit including coordinate input means, N points are input to the coordinate input means in predetermined coordinates in a predetermined order, and the coordinates of the N points and the input order are registered as a secret in the memory via the microprocessor of the control unit, In the collation of the secret code, based on the registered secret code, N points are input to the coordinate input means at predetermined coordinates in a predetermined order, and the first point P1 and the first point P1 registered in the memory by the microprocessor are input. The distance between the two points on the line connecting the second point P2 and the first point
The difference between P1 and the distance between the two points on the straight line connecting the second point P2 ′ input for matching, and the angle at which the two straight lines intersect at the first point P1. , First registered
Point P1 and the second point P2 and the third point P3, and the distance between two points on a straight line respectively connecting the points, and the first point P1 and the second point P2 respectively corresponding to the straight line. And the distance between two points on each straight line connecting the third point P3 ′ input for matching and the two points at the first point P1 and the second point P2. Angle of the straight lines of, and the registered first point P1, second point P2 and N-1th point PN
−1 and the distance between two points on a straight line connecting the Nth point PN, and the first point P1
Point P2 and the (N-1) th point PN-1 and the distance between two points on each straight line connecting the Nth point PN 'input for matching and the first point P1. , The second point P2 and the N-th point
At point PN-1, the angle at which the two straight lines intersect is calculated, the difference between the distances and the angle are compared with the registered secret code, and when both are within the allowable deviation, The coordinates of the input secret code are assumed to match the coordinates of the registered secret code.

[Work]

Since the present invention is configured as described above and uses the coordinates of N points and the input order of the points as a secret code, the number of points used can be arbitrarily changed according to the application. Also, the input order of each point and its position (coordinates) can be arbitrarily set over the entire panel surface of the input means,
Since it can be stored without using a card or the like, it is possible to obtain a highly confidential secret code collation method.

〔Example〕

FIG. 1 (a) is a block diagram of an embodiment of the present invention, FIG. 1 (b) is a diagram showing an example of secret code coordinates, and FIG. 2 is an external view of an embodiment of the present invention.

1 (a) and FIG. 2, 1 is a door, 2 is an operating unit (touch panel), 3 is a power hinge (electric lock), 4 is a power supply unit, 5 is a control unit, 6 is a microprocessor, and 7 is It is a memory.

The embodiment shown in FIG. 2 is a case where a small touch panel is used for the operation unit 2 for unlocking the entrance door of a house.
FIG. 1 (a) is a block diagram showing an example of the electrical connection in this case. A secret code is displayed on the panel surface of the operation unit 2 in accordance with the order of the numbers as shown in FIG. Press. The coordinate data of the point is input from the operation unit 2 to the control unit 5, and is input to one area of the memory 7 via the microprocessor 6 and the coordinate data previously registered in the other area of the memory 7. If they are collated and the input order and the coordinates match, the energization hinge (electric lock) is released and the door can be opened.

The above operation will be described in detail with reference to FIG. 3 (a), FIG. 3 (b) and FIG.

FIG. 3 (a) is a flowchart of an unlocking mode according to an embodiment of the present invention, FIG. 3 (b) is a flowchart of a registration mode according to an embodiment of the present invention, and FIG. 4 is a distance and an angle between points. It is explanatory drawing of a collation method.

The power of the control unit 5 is turned on to operate the control unit 5 and the operation unit 2.

In order to register the secret code first, if the registration switch is turned on in step 11 of FIG. 3 (a), the registration mode shown in FIG. 3 (b) is set. In step 22, the number of points used for the secret code is changed. Set. Next, in step 23, it is set whether or not to perform matching based on the distance between the points, and after inputting a predetermined number of points and the coordinates of the points from the operation unit (hereinafter referred to as touch panel) 2, FIG. In the point input step 24, 25 of), the presence or absence of point input is determined, and if there is input, the coordinates (point value) are stored in a predetermined area of the memory 7 or a dedicated memory and registered as a secret code. It

This input and registration are repeated until the number of points designated by the setting of the number of points is reached.

When registration is complete, in step 26, press the registration switch.
Set to OFF.

In the unlocking operation, when the first point is input in step 12, the first point value is stored in step 13 and at the same time the timer is set in step 14, and the subsequent point value is set in step 17. If the number of points stored in the memory is sequentially stored and the number of points input in step 15 does not reach the predetermined number within a predetermined time, the point value stored in step 17 is reset and the flow of the apparatus returns to the start.

When the number of points input in step 15 reaches a predetermined number and all the point values are stored in step 17, it is confirmed in step 18 that the input of the registered number of points is completed, and each of the points input in step 19 is checked. The distance and angle between the point and each registered point are compared, and if they match, the unlocking operation is performed.

The matching of the distance between the points and the angle will be described with reference to FIG.

The coordinates of each point P1 ', P2', P3 ', ... Pn' to be entered are entered with a finger or a pencil having a certain thickness on the panel surface of the touch panel. It is necessary to allow some deviation from the coordinates when inputting.

First, based on the memory, the point P1 'is input to one point on the panel surface of the touch panel based on the memory.

Next, as shown in FIG. 4 (a), the point P2 'is input at a predetermined position. At this time, in the control unit 2, the coordinates of the point P1 registered in the memory 7 are used as the origin, and the difference between the input distance to the point P2 ′ and the distance to the point P2 is connected to the point P1 and the point P2. A straight line,
The microprocessor 6 calculates the angle at which the straight line connecting the points P1 and P2 'intersects at the point P1, and the distance is within a predetermined permissible deviation ± m1 and the angle is within a predetermined permissible deviation ± n °. If there is, the coordinate of the input point P2 'is assumed to coincide with the coordinate of the registered point P2, and then the point P3' is collated.

Regarding the coordinates of the input point P3 'as shown in FIG. 4B, the registered points P1 and P are the same as above.
With the coordinates of 2 as the origin, each distance to the input point P3 'and the points P1 and P2 to the point P3
The difference with each distance up to each is within the predetermined allowable deviation ± m2, ± m3, and regarding the angle, the above points
If the angle at which the straight line connecting P1, P2 and point P3 and the straight line connecting point P1, P2 and point P3 'intersect at points P1 and P2, respectively, is within the specified allowable deviation ± n °, it is entered. It is assumed that the coordinates of the point P3 'and the coordinates of the registered point P3 match.

Hereinafter, regarding the last input point Pn ′, the difference between the distance from the registered points P1 to Pn-1 and the distance between the points Pn and P1 to Pn-1 is within the respective allowable deviations. If the angle is within the predetermined permissible deviation in the same manner as described above, it is assumed that the input secret code matches the registered secret code.

The position for inputting the first point on the touch panel in the coordinate collation method of the present invention may be any position on the panel surface assuming the shape of the registered secret code, and each point is connected by switching the function of the control unit. If the shapes are similar, the collation can be performed.

Although a touch panel is used for the operation unit in this embodiment,
It goes without saying that other types of coordinate input devices can be used.

〔The invention's effect〕

Since the present invention is configured as described above, the number of points (coordinates) used as a secret code can be obtained at least in high concealment, and the secret code coordinates can be obtained without using a card or a complicated operation. Even if there is some deviation in the input position, it is possible to operate.

Also, due to the fact that slight deviations are allowed as described above, the panel surface for inputting the secret code is divided into small sections, and patterns are drawn to open and close the entrances of apartments with relatively few residents. But you can expect the effect that you can do it.

[Brief description of drawings]

FIG. 1 (a) is a block diagram of an embodiment of the present invention, FIG. 1 (b) is a diagram showing an example of secret code coordinates, FIG. 2 is an external view of an embodiment of the present invention, and FIG. a) is a flowchart of an unlocking mode according to an embodiment of the present invention, FIG. 3B is a flowchart of a registration mode according to an embodiment of the present invention, and FIG. 4 is an explanatory diagram of a distance angle matching method between points. Is. 1 ... Door, 2 ... Operation part (touch panel), 3 ... Energization hinge (electric lock), 4 ... Power supply part, 5 ... Control part, 6 ...
… Microprocessor, 7… memory.

Claims (1)

[Claims] 1. A password collation system for inputting a password registered in advance in a password collating means to collate the password, and in the password collating method, the password collating means comprises a control section comprising a microprocessor and a memory, and an operation comprising coordinate input means. And inputting N points to the coordinate input means of the operation unit in predetermined coordinates in a predetermined order, and using the coordinates of the N points and the input order as a secret code, The personal identification is registered in the memory through the microprocessor, and the identification of the personal identification is made by inputting N points into the coordinate input means in the predetermined coordinates in a predetermined order based on the registered personal identification, and by the microprocessor, in the memory. The distance between the registered first point P1 and the second point P2 on the straight line connecting the two points, the first point P1 and the second point P2 ′ input for matching are The difference between the distance between the two points on the connecting straight line, At point P1, the angle between the two straight lines and the distance between the two points on the straight line connecting the registered first point P1 and second registered point P2 to the third point P3, respectively. And the first point P1 and the second point P2 respectively corresponding to the straight line,
The difference between the distance between two points on each straight line connecting the third point P3 ′ input for matching and the two straight lines at the first point P1 and the second point P2, respectively. The angle at which the points intersect and the registered first point P1, second point P2, and N-1th point
PN-1, the distance between two points on a straight line connecting the Nth point PN, and the first point P1, the second point P2 and the N-1th point PN corresponding to the straight lines, respectively. −1 and the distance between two points on each straight line connecting the Nth point PN ′ input for matching, the first point P1, the second point P2 and the N−1th point. Point PN-1
In, the angle at which the two straight lines intersect is calculated, and the difference between the distances and the angles are compared with the registered secret code. If both are within the allowable deviation, the coordinates of the entered secret code are calculated. A coordinate PIN collation method characterized in that the coordinates of the PIN are registered.