JPH08123922A - Discriminator - Google Patents

Abstract

PURPOSE: To provide a discrimination of high safety which is difficult to copy from the appearance. CONSTITUTION: A laser key 1 consists of lenses 2 and half mirrors 3, and laser light 6 is passed through the lens 2 in the front end part and is separated into spectral components by half mirrors 3, and this separated laser light is recognized as a discrimination code by a light reception part 5 of the lock 4. Many kinds of discrimination codes are generated by combinations of presence/absence and directions of half mirrors 3. The laser key 1 is inserted to a lock 4, and an ID code is inputted from an ID input device 9, and this ID code and the discrimination code sent from light reception parts 5 and 5 are collated with codes registered in a control circuit 10; and in the case of match, a door release instruction is sent to a door controller 11 to release the door.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an identification device used in the fields of distribution, finance, security, etc.
The present invention relates to a highly safe identification device that is difficult to copy.

[0002]

2. Description of the Related Art As a conventional authentication card using light,
Punch card, reflective barcode, transparent barcode,
Some include reading bit information used on compact discs.

In the personal identification device, Japanese Unexamined Patent Publication No. 2-10498.
As described in Japanese Patent Publication No. JP-A-2003-13869, a method of collating the recitation number with the recitation number read from the optical card and the input data from the electronic key and the input data from the keyboard is adopted.

As shown in FIG. 7, this device includes an electronic register 20, a data collating / settling device 24, an optical card,
It is composed of a reader and is connected by a cable 23 and an optical cable 30 as shown in FIG.

In the data collation / settlement device 24, the input data from the optical card reader 31 and the keyboard 25 are used.
(ID code input) and input data from the electronic key device section 26 are temporarily stored in the data buffer 29, and these three data are read out to the collating section 28 for comparison and collation. The input data of the electronic key device unit 26 and the adjustment data input from the keyboard 25 are temporarily stored in the data buffer 29.

The data collating / settling device 24 collates /
After the inquiry and settlement, the data is sent to the electronic register 20.

[0007]

The above-mentioned conventional method using a light-based authentication card allows the written information to be read from the outside, so that it can be easily rewritten, copied, and illegally used due to theft or the like. However, there is a problem that it is difficult to ensure security.

The present invention has been made in view of the above points, and an object thereof is to provide a highly safe identification device that is hard to copy from the appearance.

[0009]

In order to solve the above problems, in the present invention, an identification device is composed of an identification member and an apparatus body into which the identification member is inserted. And
The identification member has a light receiving window, a plurality of light emitting windows, and an optical path that selectively connects the light receiving window and the plurality of light emitting windows. An identification code for identifying the identification member is formed depending on the presence or absence of light from the light emitting window. On the other hand, the device body receives the light emitted from the light emitting window, and outputs the identification signal, the recess into which the identification member is inserted, the light source that emits light to the light receiving window when the identification member is inserted into the recess. And a light receiving section.

[0010]

Since the identification code applied to the identification member cannot be discerned from the outside, it is possible to prevent illegal copying.
Build a safer security system.

[0011]

The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example in which the identification device of one embodiment of the present invention is used in a door opening / closing control device. FIG. 2
Is a perspective view of a key used in the identification device, and FIG. 3 is an exploded view thereof.

The identification device of this embodiment comprises a key 1 as an identification member and a lock 4 (device body) into which the key 1 is inserted. The key 1 is flat as shown in FIGS.
01 and a side plate 102 that covers the frame plate 101, and the material may be resin or metal. A light receiving window 103 is formed on the frame plate 101 at a position corresponding to an end portion of the key 1, and a plurality of light emitting windows 104 are formed on both side portions of the key 1 at predetermined intervals along the length direction. At the center of the key 1, a plurality of half mirrors 3 are arranged along the length direction at positions corresponding to the respective light emitting windows 104. The half mirror 3 allows a part of the light from the light receiving window 103 to pass through and reflects a part of the light at a right angle to guide it to the light emitting window 104. Which light emitting window 104 is illuminated depends on the presence or absence of a half mirror and the direction of reflection. The lighting pattern of the light emitting window 104 functions as an identification code for identifying the key 1. By the way, in the example of FIG. 3, the first half mirror from the left in the figure reflects light toward the light emitting window in the upper part of the figure, and the second half mirror reflects light in the lower part of the figure and the third half mirror in both upper and lower parts. Is reflected. A spherical lens 2 is attached inside the light receiving window 103 and the light emitting window 104. The side plate 102 is formed with key grooves 105 and 106 for positioning the key 1.

The lock 4 has a keyhole (recess) into which the key 1 is inserted.
401 and the light receiving window 1 when the key 1 is inserted into the keyhole 401
03 is provided with a light source 7 for emitting light 6, and a light receiving portion 5 for receiving the light emitted from the light emitting window 104 and outputting an identification code signal based on the light. Although a laser oscillator is used as the light source 7, other light sources such as a light emitting diode may be used. Further, although the photodiode module is used as the light receiving section, the light receiving section is not limited to this, and other light receiving elements may be used depending on the light source. A key detector 8 that detects the presence or absence of the key 1 by irradiating the key 1 with light and receiving the reflected light is arranged at the bottom of the keyhole 401.

FIG. 4 is a front view of the key hole 401 of the lock 4, and the lock 4 is formed with ridges 105a and 106a which engage with the key grooves 105 and 106 of the key 1.

The control circuit 10 is composed of, for example, a CPU and a memory, receives the identification code signals from the light receiving sections 5 and 5 and the signal from the key detector 8, and controls the operation of the laser oscillator 7. Further, in the memory of the control circuit 10, a specific code for specifying the user is registered in advance. 9 is I
The D code input device is a device such as a keyboard and a card reader that a user or the like inputs an ID code, and the ID code input here is output to the control circuit 10. A door control device 11 controls locking and unlocking of the door 12.

Next, the operation of the above embodiment will be described. When the key 1 is inserted into the keyhole 401 of the lock 4 to a predetermined position, the key detector 8 detects the key 1 and outputs a key detection signal to the control circuit 8. Based on this signal, the control circuit 10 confirms that the key 1 has been inserted, and outputs a laser light oscillation signal to the laser oscillator 7 to generate the laser light 6. Laser oscillator 7
Irradiates the light receiving window 103 of the laser key 1 with the laser light 6,
The irradiated laser light 6 passes through a spherical lens at the tip of the laser key 7, and the half mirror 3 arranged in the laser key 1 disperses the laser light. The separated laser light is arranged in parallel with the half mirror. Focused by lens 2 and lock 4
The laser light is applied to the light receiving section 5 arranged inside. The light receiving section 5 detects the light, generates an identification code signal, and outputs this signal to the control circuit 10. A large number of identification codes are formed depending on the combination of the presence or absence of the half mirror 3 and the orientation.

On the other hand, an ID code is input from the ID input device 9 and sent to the control circuit 10. The control circuit 10 preregisters the ID code and the identification code sent from the light receiving portions 5 and 5. The specific code is collated, and if the results coincide, an unlocking signal for opening the door is output to the door control device 11. Upon receiving this unlocking signal, the door control device 11
Opens the door. When the result of collation does not match, the control circuit 10 issues a warning.

If the above identification device is used, the key 1
Since the identification code applied to the can not be recognized from the outside, it is safe because it is not easily copied. Further, as in the above embodiment, by adding the ID input device 9,
Check the identification code of key 1 and check other I
By checking the D code as well, the degree of safety can be further enhanced.

In the above description, an example in which the identification device according to the present invention is used for a door opening / closing control device is shown. However, the same security effect can be obtained for personal identification such as cash register, inquiry device, and terminal management. Is obtained.

FIG. 5 shows a second embodiment of the present invention. In this embodiment, as a means for forming an optical path for selectively connecting the light receiving window 103 of the key 1 and a plurality of light emitting windows 104, the above embodiment is used. An optical fiber bundle 51 was used instead of the half mirror 3 of FIG. An optical path is installed from the light receiving window 104 to the predetermined light emitting window 104 by several optical fibers. Further, no optical path is set for a specific light emitting window, and a large number of identification codes can be formed by this combination. By using an optical fiber in this way, light can be sent without being attenuated.

FIG. 6 shows a third embodiment of the present invention, in which a perforated mirror 61 is used to form an optical path from the light receiving window 103 to the plurality of light emitting windows 104. The perforated mirror 61 is formed by forming a hole 61a for passing light in the central portion of the reflecting mirror. The perforated mirror 61 is arranged at each position corresponding to the light emitting window 104 in the length direction of the key 1 from the light receiving window 103 of the key 1. The perforated mirror 61 is installed so as to be tilted upward or downward by 45 degrees, and an identification code that differs depending on the presence or absence of the inclination and the direction is formed.
There is little light attenuation and the configuration is simple.

Although the half mirror 3 and the perforated mirror 61 are fixedly installed in the configurations of FIGS. 3 and 6, these mirrors 3 and 61 are provided with rotation shafts so as to be rotatable, and their angles are changed. Alternatively, the identification code may be changed.

In the above-mentioned embodiment, the identification member and the main body of the apparatus are formed in the shapes of the key 1 and the lock 4, respectively, but the shapes are not limited to those of the above-mentioned embodiment, and other shapes such as rods are also possible. However, it may have a card shape or any other shape.

[0024]

As described above, according to the present invention,
Since the identification code applied to the identification member cannot be discriminated from the outside, illegal copying can be prevented. Furthermore, by using the personal authentication code together to identify the individual, it is possible to prevent unauthorized use of the key and to construct a safer security system.

[Brief description of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a perspective view of the key of the embodiment of FIG.

FIG. 3 is an exploded view of a key.

FIG. 4 is a view of the keyhole as viewed from the front.

FIG. 5 is a diagram of a second embodiment of the present invention.

FIG. 6 is a diagram of a third embodiment of the present invention.

[Explanation of symbols]

 1 Key 3 Half Mirror 4 Lock 5 Optical Receiver 6 Laser Light 7 Laser Oscillator 8 Key Detector 9 ID Input Device 10 Control Circuit 11 Door Control Device 12 Door

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[Procedure amendment]

[Submission date] February 28, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 7

[Correction method] Added

[Correction content]

FIG. 7 is a block diagram of a conventional identification device.

Claims (4)

[Claims] 1. An identification member and an apparatus body into which the identification member is inserted, wherein the identification member selectively receives a light receiving window, a plurality of light emitting windows, and the light receiving window and a plurality of light emitting windows. The device body comprises a recess into which the identification member is inserted, a light source that irradiates the light receiving window with light when the identification member is inserted into the recess, and the light is emitted from the light emitting window. An identification device, comprising: a light receiving section that receives light and outputs an identification signal. 2. The identification device according to claim 1, wherein the optical path includes a half mirror that selectively reflects light from the light receiving window to the light emitting window. 3. The optical path comprises an optical fiber that selectively propagates light from the light receiving window to the light emitting window.
Identification device according to. 4. The light path includes a reflecting mirror that selectively reflects the light from the light receiving window to the light emitting window, and the light from the light receiving window is allowed to pass through the center of the reflecting mirror. The identification device according to claim 1, wherein a through hole is formed.