JP2878002B2 - Unlocking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for unlocking a door or the like with an IC card.

[0002]

2. Description of the Related Art For example, there is an unlocking device using an IC card for unlocking a door of a computer room of a company or a guest room of a hotel. In this unlocking device, a personal code is stored in an IC card, and a control device using a microcomputer or the like is incorporated in the unlocking device provided on the door side, and the personal code stored in the IC card is stored by the control device. It is determined whether the personal code is read and corresponds to the room, and if the personal code corresponds to the room, an electric lock or the like is unlocked.

[0003]

However, the manufacture of an IC card that stores a personal code and the manufacture of an unlocking device that reads a personal code are performed by separate manufacturers. In order to manufacture a device capable of reading personal data, it is necessary to notify the card data reading method from the IC card manufacturing company to the device manufacturing company. As a result, strict confidentiality cannot be expected for personal codes and code reading methods.

[0004] An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and it is not necessary to inform the manufacturing side of the apparatus of a method of reading a part of the code stored in the personal IC card, and the confidentiality can be secured. An object of the present invention is to provide an unlocking device.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a management IC card reader / writer provided in an apparatus main body and a personal IC card reader / writer provided on a surface of the apparatus main body.
A C card reader / writer, a personal IC card storing the authenticity determination data of the card and the entry permission data, and the same determination data as the authenticity determination data stored in the personal IC card are stored. A management IC card loaded in the management IC card reader / writer for determining the authenticity of the card read / write data read by the personal IC card reader / writer, and a control built in the device body to control unlocking And the control unit,
Authenticity judgment data read by a management IC card reader / writer loaded with a management IC card;
When the authenticity judgment data read by the personal IC card reader / writer loaded with the C card matches,
The gist of the invention is to provide a judgment means for judging whether the entry permission data stored in the personal IC card is correct or not, and to output an unlock signal.

[0006]

According to the present invention, a personal IC inserted into a personal IC card reader / writer provided on the surface of the apparatus body
The authenticity judgment data of the card stored in the card is read by the management IC card inserted into the management IC card reader / writer provided in the apparatus main body, and the management IC card is read.
The authenticity of the personal IC card is determined by comparing it with the authenticity determination data stored in the C card, and if both match and the personal IC card is valid, an OK signal is output. If the validity period of the card as the entry permission data stored in the personal IC card, the personal code, and the like are determined by the determining means provided in the control unit built in the apparatus main body and the card is determined to be a valid card. An OK signal is output, and the OK signal and the O output from the management IC card are output.
It is unlocked by the K signal.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram of an unlocking control showing an embodiment of the unlocking device of the present invention, and FIG. 2 is an explanatory diagram showing an embodiment of the unlocking device of the present invention. An example will be described.

In FIG. 1, reference numeral 1 denotes a main body of an unlocking device installed on each door of a guest room of a hotel, a display 2 on a surface of a case 1a of the main body 1, a ten key 3 for inputting a PIN (personal ID code), A personal IC card reader / writer 5 having a card ejection mechanism 4 using a solenoid or the like and an alarm 6 using a buzzer or the like are provided, and a management IC card reader / writer 7 is provided in the case 1a. The management IC card reader / writer 7 is detachably mounted in the case 1a by opening the front panel of the case 1a.

In the figure, reference numeral 11 denotes a personal IC card inserted into the personal IC card reader / writer 5 and lent by a guest from a hotel. For example, in the same card manufacturer, a common encrypted truth judgment number, for example, "567
3 '' is stored, and card 11 is used as entry permission data.
Valid date of "1993, 3, 31", valid use time of card 11 such as "07: 00-20: 00", common company code such as "5826" at the same hotel, individual different for each card 11 A code such as “2367” is stored. If a PIN (personal ID code) is required,
IN, the input PIN and the stored P
A microcomputer having a function of collating with IN and judging whether or not they are the same is built in.

On the other hand, the management IC card 12 has the authenticity judgment number “5637” stored in the personal IC card 11.
Is stored as the judgment data, and the management IC card 12 has the authenticity judgment number stored in the personal IC card 11 and the authenticity judgment number stored in the management IC card 12. And a control unit such as a microcomputer having a function of determining whether or not the two are the same.

The main body 1 is connected to a lock 8 by a solenoid lock for each door, a door open / close sensor 9 such as a microswitch for detecting opening / closing of the door, and the main body 1 provided for each door is connected to a host computer 10 provided at the front. Connecting.

FIG. 1 is a block diagram of unlocking control by a control device using a microcomputer or the like built in the main body 1 of the apparatus. The authenticity judgment from the personal IC card reader / writer 5 into which the personal IC card 11 is inserted. The number signal is introduced into the management IC card 12 inserted in the management IC card reader / writer 7, and the OK signal of the determination result from the management IC card 12 is used as the gate open signal to set the gate 13
And a card data signal from the personal IC card reader / writer 5 through the gate 13 to determine the entry condition
14. Introduced to the code determination means 15.

The entry condition judging means 14 receives a date signal from the calendar 18 and compares it with entry permission data such as the effective date of the card stored in the personal IC card 11 to check the personal IC information. The code judging means 15 is for judging the appropriateness of the card 11, and the code number signal from the storage unit 19 storing the company code and the personal code is introduced,
It has a function of checking the code number and the code number stored in the personal IC card 11 to determine the suitability of the personal IC card 11.

An OK signal from the entry condition judging means 14 and an OK signal from the code judging means 15 are introduced into an AND circuit 20, and the OK signal from the AND circuit 20 is introduced into the lock 8 as an unlock signal. As a set signal to timer 22,
The signal is introduced into the card ejection function 4 as an ejection signal and further into the display 2 as an entry OK signal.

Then, the door open signal from the door open / close sensor 9 is introduced as a reset signal to the timer 22, and the lock signal from the timer 22 for setting the time during which the lock is opened (for example, 10 seconds) is sent to the lock 8. Introduce.

A door open signal from the door open / close sensor 9 is
After the door is opened, a timer is used as a set signal to set the time (for example, 10 seconds) until the alarm 6 starts operating with the door open.
23, the door closing signal from the door opening / closing sensor 9 was introduced into the lock 8 as a lock closing signal and into the timer 23 as a reset signal.

The storage unit 24 stores entry data such as a card insertion signal from the personal IC card reader / writer 5, an entry signal such as the date of entry from the entry condition judging means 14, and a code number signal from the code judging means 15. To be introduced. A data read signal from the front host computer 10 is introduced into the storage unit 24. Also, entry condition determination means
The entry data signal such as the entry date from 14 is
The information is introduced into the C card reader / writer 5 and stored as a usage history in the personal IC card 11.

On the other hand, when the personal IC card 11 is not proper, the entry condition determining means 14 and the code determining means
15. NO signal from management IC card reader / writer 7 and PIN from personal IC card reader / writer 5
A determination NO signal is introduced into the card ejection mechanism 4 and the display 2.

Next, the usage and operation will be described with reference to the flowchart of FIG. The case where the unlocking device of the present invention is applied to the door of a guest room of a hotel will be described as an example. The management I in the front panel of the device main body 1 provided at the entrance of the guest room is described.
The C card reader / writer 7 is loaded with a management IC card 12 in advance. The guest receives the personal IC card 11 at the front desk. In this case, the personal IC card 11 stores a card authenticity judgment number stored in the management IC card 12, for example, the same card authenticity judgment number as "5673".

In order for the guest to open the door of his / her room, the personal IC card 11 must be inserted into the personal IC card reader / writer 5.
(Step b), an encrypted signal indicating the card authenticity judgment number “5673” stored in the personal IC card 11 read by the personal IC card reader / writer 5 is transmitted to the management IC card. Enter 12 and manage IC card
12 is decrypted and compared with the card authenticity judgment number "5673",
The authenticity of the personal IC card 11 is determined (Step B)
.

As a result of the determination, if the personal IC card 11 is valid, the gate 13 is opened by the OK signal from the management IC card 12, and if the PIN input is stored in the personal IC card 11 in particular, (Step c), an input instruction is displayed on the display unit 2 (step d), and the ten keys 3 for input are displayed.
When the PIN is entered, the PIN is input to the personal IC card 11 and collated with the stored PIN. If the two match (step e), the personal IC card reader / writer 5 transfers the PIN to the personal IC card 11. The stored entry permission data is sent to the entry condition judging means 14 via the gate 13, and the date when the personal IC card 11 is inserted is stored in the card 11. 1993, 3,
31. It is determined whether or not the valid use time zone “07:00 to 20:00” is met, and if so, an OK signal is output to the AND circuit.
Output to 20 (step f).

Further, as other entry permission data stored in the personal IC card 11, a company code for identification such as "9826" and a personal code such as "2367" are sent to the code judging means 15, where they are stored. The code is collated with the code stored in the section 19, and if they match, an OK signal is output to the AND circuit 20 (step). As a result, the OK signal from the AND circuit 20 is input to the lock 8 as a lock release signal,
The lock 8 opens (stepch).

The output from the entry condition judging means 14, the code judging means 15 and the personal IC card reader / writer 5, as the card data and the use data, for example, "19"
08:18, September 24, 1991, company code 9826, personal code
2323 card was used for door 06 '' is stored in the storage unit 24, and this entry storage data is stored in the host computer 10
Read by polling from the host computer
Stored in 10.

At the same time, the usage data of the personal IC card 11, for example, “September 24, 08:18, door 06, 1991” is also stored in the personal IC card 11 by the personal IC card reader / writer 5. You. This usage data is sequentially stored in the personal IC card 11 each time it is used.

As described above, the lock 8 is opened and the personal I
When the usage data is stored in the C card 11, the AND circuit 20
Card ejection mechanism 4 operates according to the signal output from the personal IC inserted into the personal IC card reader / writer 5
The card 11 is released (stepch).

At the same time, this signal is input to the timer 22 as a set signal, and a time from when the lock is unlocked until when the door is opened, for example, 10 seconds is set (steply). Therefore, if the door is opened during this 10 seconds, the door opening is detected by the door open / close sensor 9 and this door open signal is set in the timer 22 as a reset signal.
Although the lock is reset for 10 seconds (Stepnu), if the lock is opened but the door is not opened within 10 seconds thereafter, it is locked again by the closing signal from the timer 22 (Stepl). In this way, the danger of keeping the unlocked state for a long time is prevented.

Next, even if the door is opened for 10 seconds set by the timer 22, the time from when the door is opened to when it is closed again, for example, 10 seconds, is determined by the door opening signal from the door opening / closing sensor 9. Since the timer is set to another timer 23, if the door is opened and the door is not closed within 10 seconds (Step I, W), the buzzer sounds by the output from the timer 23 to the alarm 6 (Step F), and the door opens. Inform customers that they are still standing. If the door is closed within 10 seconds (step ヲ), the door is locked again by the door closing signal from the door opening / closing sensor 9 (stepping), and when the alarm 6 is activated, it is determined that the door remains open. Know and close the door (Step Yo).
In this way, the danger of leaving the door open or half-closed is prevented.

As described above, the authenticity of the personal IC card 11 is determined by the management IC card 12, and whether the entry permission data stored in the personal IC card 11 is valid or not is determined. Judgment is made by the entry condition judging means 14 and the code judging means 15, and when particularly strict checks are required, the PIN is stored in the personal IC card 11, and the PIN is inputted.
The door is opened when all of these judgments are cleared by comparing with IN.

In the case where the management IC card 12 determines that the card authenticity judgment number stored in the personal IC card 11 does not match that stored in the management IC card 12 (step B). If the PIN stored in the personal IC card 11 does not match the PIN input from the numeric keypad 3 (step e) when the PIN is stored (step e), the individual checked by the entry condition determination means 14 is checked. If the entry permission data stored in the IC card 11 and the current date read from the calendar 18 do not match (step f), the code determination means 15
If the company code and personal code stored in the personal IC card 11 and the code stored in the storage unit 19 do not match (step), a signal is output in any case. At the same time, the personal IC card 11 is released from the personal IC card reader / writer 5, and at the same time, a message indicating "unusable" is displayed on the display 2 (step).

[0030]

As described above, the unlocking device of the present invention
When unlocking with an IC card, a strict check is performed because the authenticity of the IC card and the validity of the entry permission data stored therein are determined. In addition, since the authenticity of the card is determined by reading the data with a management IC card provided separately, the judgment can be made between the cards, and the host computer can perform the data collation by reading the authenticity judgment number of the card. In this case, the storage data of the room is merely stored, so that it is not necessary to notify the card maker of the host computer device maker different from the card maker, and the confidentiality of data can be enhanced. Things. Since the card reader / writer of the management IC card is provided in the main body of the apparatus, it is difficult to easily remove the card reader / writer. Therefore, the authenticity of the personal IC card is determined using the management IC card. It is safe.

[Brief description of the drawings]

FIG. 1 is a block diagram of unlock control showing an embodiment of an unlocking device of the present invention.

FIG. 2 is an explanatory view showing an embodiment of the unlocking device of the present invention.

FIG. 3 is a flowchart showing the operation of the unlocking device of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body 1a ... Case 2 ... Display 3 ... Numeric keypad 4 ... Card release mechanism 5 ... Personal IC card reader / writer 6 ... Alarm 7 ... Management IC card reader / writer 8 ... Lock 9 ... Door opening / closing sensor 10 ... Host computer 11… Personal IC
Card 12 Management IC card 13 Gate 14 Entry condition determination means 15 Code determination means 18 Calendar 19 Storage unit 20 AND circuit 22 Timer 23 Timer 24 Storage unit

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tadahiko Nishikuni 1-2-6-5 Toranomon, Minato-ku, Tokyo NTT Data Communication Corporation (72) Inventor Jinichi Kobayashi Shibaura, Minato-ku, Tokyo 2-12-13, Tokyo Tatsuno Co., Ltd. No. 12-13 Tokyo Tatsuno Co., Ltd. (56) References JP-A-62-160382 (JP, A) JP-A-58-120972 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , (DB name) E05B 49/00

Claims (1)

(57) [Claims] 1. A management IC card reader / writer provided in an apparatus main body, a personal IC card reader / writer provided on a surface of the apparatus main body, and an individual storing card authenticity judgment data and entry permission data. The same judgment data as the authenticity judgment data stored in the personal IC card and the personal IC card is stored, and the authenticity judgment data of the card read by the personal IC card reader / writer is judged as authenticity. The management IC card includes a management IC card loaded in a management IC card reader / writer, and a control unit built in the apparatus main body and controlling unlocking. The control unit includes a management IC card loaded with the management IC card. True / false judgment data read by a reader / writer and read by a personal IC card reader / writer loaded with a personal IC card Unlocking means for judging whether the entry permission data stored in the personal IC card is correct or not when the authenticity judgment data matches, and outputting an unlocking signal; apparatus.