JPS60215982A - Room entry control apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an entry control device for controlling persons entering a specific room such as a #t' machine room.

Note that for convenience of explanation, a computer room will be used as an example. Total J1. As is well known, machines not only process a large amount of data or information, but in many cases companies also handle information related to the fundamentals of management. Therefore, conventional measures have been taken to restrict entry to computer rooms by providing doors that can be opened and closed using a card inserted at the entrance of the computer room.

FIG. 1 is a diagram showing the relationship between computers, a computer room, and a room access control device. (1) is a computer room in which a computer (2) consisting of components M1 to M4 is installed. There is. The computer room is equipped with a door (3), which is normally closed by a locking mechanism (4) and opened by a signal (6) from a door opening/closing control device (5). ing. (7) is a card reader installed near the door (3) and on the outer wall of the room (1). ) is inserted, and if the inserted card is a legitimate card, an output (6) is generated from the door opening/closing control device (5) and the door (3) is unlocked.

By the way, in conventional devices, a plastic card provided with a magnetic stripe as an identification medium and a required code recorded on the stripe is generally widely used.

However, by placing a magnetic head on the magnetic stripe of this card, internal medicine information can be read relatively easily and the card can be tampered with.

Furthermore, if the card comes close to a magnetic material, the recorded contents will be erased and the card will no longer function as the specified identification card.

The present invention provides a room entry control device that has improved the above-mentioned problems, and will be described in detail below with reference to the two drawings.

Figure 4 shows cards (8) that play an important role in this invention.
), and the feature of this card is that an integrated circuit (I (hereinafter referred to as IC)) is built inside the plastic plate (9), and its Xaα circuit is installed on the - side of the plastic plate (9). Multiple input/output terminals U including power supply and ground
It is connected to υ by a conductor (not shown) that runs inside the plastic plate.

In other words, the above work C! (13 acts as an active element.

When a signal is applied from another device (not shown) through one of the input/output terminals Uυ, an output corresponding to the input signal is generated, and that output is outputted through one of the input/output terminals α0. It is something that

However, if a specific signal is given to IC(lω).

You can get the corresponding output.

Therefore, by specifying how the output should be in response to the input for each Xa of each card, each card can be identified.

Therefore, if such a card is given to a person authorized to enter/exit a specific room, only the specific person can enter the room, and the card cannot be tampered with easily.

FIG. 3 is a configuration diagram showing an example of the room entry control device according to the present invention.

For convenience of explanation, here, by entering the PIN number, IC! An example will be explained in which when one pulse is given to Q(l, three pulses occur at a predetermined interval (frequency). Figure 3 shows the card reader (7) and the
11.

In the figure, the card reader (7) mainly uses the card (
8), enter the PIN code known only to the card holder, and the first signal circuit (1 side) and the second signal circuit (13i) connected to this key K. , a power supply circuit a4, and the first circuit 12 is a key K
When the password inputted by the password matches the password registered in advance, an nr constant pulse is output, and the Xa of the card also receives a predetermined pulse generated. Further, the second circuit Q31 has an identification function including a function (calendar identification function) (13a) for identifying the expiration date of the card,
Normality of card (8).

and the expiration date are determined based on the signal generated from the IC (11).

The power supply circuit U is the power supply for the card reader itself, and is also the power supply for passing the required current to the ICQI. L151 is a connector on the card reader side, and includes an input/output end (161) corresponding to the input/output end Uυ on the card side.The input/output end (16s) originates from the CUO.

And a predetermined pulse signal input to circuit H passes.

The input/output terminal (16p) is generated from the circuit α and is connected to the circuit C (1
0) passes through the human input pulse signal. In addition, the input/output terminal (
16pe) is for power supply, and (16K) is the input/output terminal for grounding.

These input/output terminals (16El), (161)) +
(16T) [1) + (16P2) is connector US
The input/output end (11) of the card side contact terminal part 07) that engages with the
e) + (11p)! (11ps)? (11
E) and send and receive signals and supply power.

That is, the contact terminal portion αη of the card (8) and the connector α
9, the l0QI of card (8) can be made to function. ati is a pulse generation circuit that generates pulses of a predetermined frequency (I old two inversion games) (20
a) 1-bit memory circuit with (20b) cross-connected;
clI) is an AND gate in which one of the two input terminals is given the output pulse of the pulse generation circuit US, and the other input terminal is given the output of one gate (20b) of the memory circuit u value, ( 22 is a flip-flop F1.F
It is a counter consisting of 2, and is reset by the 4th input pulse, and if expressed in decimal, it is 1.2
．． An output of 3 results. That is, three pulses occur.

Note that the T signal attached to Fj and F2 indicates a trigger input terminal, S indicates a set output terminal, and R indicates a reset input terminal. (c) is a decoder that converts the output of the solid flop, that is, the binary coded decimal output.

(goods) is the output of the decoder, i.e. decimal "1""
An OR gate whose inputs are the outputs corresponding to 2 and 3.

The output is given to the card reader through input/output terminals (11s) and (16θ).

DM is a memory in which the expiration date of the card is electrically set and stored (for example, KKFROM: electrically erasable FROM).
The contents are given to the card reader before (or after) the output of the counter @ through the timing gate G provided between the input/output terminal (11s) and the OR gate (material), and the contents are given to the card reader before (or after) the output of the counter @ It is determined whether or not it is within a predetermined validity period.

In such a configuration, if the pulse generating circuit is a self-oscillating type pulse generating circuit (such as a free-running multi-channel circuit), an output pulse is generated when power is supplied.

Therefore, insert the card (8) into the card reader (7).

If you operate the PIN code Kaki-K and enter your PIN number,
If the password is correct, one pulse is generated from the first signal circuit α4, and that one pulse is transmitted to the 1-bit memory circuit (
11 and the output of the 2 inverting gate (20b) is “1”
If so, it is an AND game) A pulse train is output from C1υ. The pulses of this pulse train are also given to the memory DM as a timing signal and counted by a counter (2), and when three pulses are output from the decoder (c), the counter is reset.

In more detail, the output of the decoder (c) is decimal r
Because it is output corresponding to 1j r2J r3J.

Three pulses are generated according to the oscillation frequency of the pulse generating circuit αa and are applied to the card reader (7). Also.

The contents of the memory DM are also provided to the card reader (7) through the gate G.

Therefore, the card reader (7) reads the card (8) at 0(1).
1 has been activated correctly according to the entered PIN number, thereby confirming that the card is the correct one. If it is a fraudulent card, it will not work even if you enter the PIN number, or even if you input one input pulse, three output pulses will not be generated, indicating that a fraudulent card was used on the card reader side. You can know that. On the other hand, the expiration date identification function (15a) determines whether the card is within its validity period.

In this way, it is possible to control the locking and unlocking of the door by using a card with a built-in IC and entering a PIN number.Furthermore, by using a card called Since the number is added to the key condition and signals are exchanged in a mutual relationship with the card reader, there are no problems like with conventional magnetic cards.

Please note that checking the validity period is to ensure the reliability of the card, so please change the card as appropriate.

Resetting the validity period is an effective means to prevent card tampering.

Next, some embodiments of this invention will be further explained.

FIG. 4 shows an example of the relationship between ICaI and the card reader (7), in which synchronized pulses are generated from l0III and the pulse generator (c) of the card reader (7), respectively.

The state of synchronization is checked by the matching circuit (9) of the signal circuit 2, and the pulses that are the output of the matching circuit C11'0 are counted by the counting circuit (to) with a preset function, and when the counted value reaches the preset value, The output of the pulse generator (c) is stopped by the signal -. Checking the synchronization pulse in this way is useful for determining whether the card (8) is correct or not, and if a predetermined pulse output is not generated from the matching circuit, the counting circuit will not step, and therefore the door opening/closing control device ( 5) to output (6F- will not occur).

FIG. 5 shows another example in which a predetermined signal is applied from the signal generating circuit (to) of the card reader (7) to the IC (1 (l).

A corresponding signal is generated from ICtttt and checked by the verification circuit 6D on the card reader (7) side, and if the verification result is correct, a signal (To) is sent to the circuit C (11) and Xa
The signal 0 can be used as a card confirmation signal.

FIG. 6 shows yet another example, in which a predetermined signal is generated from the signal generation circuit (to) of the card reader (7), Atsugi is sent to ICα[, and a specific code is generated from IC(+1) in response. Generate a signal (to) and feed it to the matching circuit (b).

This matching circuit (b) is given a registration code (to) recorded in the memory (to) in the card reader (7), and when C(i, (to) matches) An output Gη is outputted to the door opening/closing control device (5) shown in FIG.

FIG. 7 shows yet another example in which the two outputs (to) of the matching circuit (b), @ are given to the speech synthesis output device @O,
The device θ1 generates an audio signal corresponding to the match or mismatch in the match circuit (to), and the speaker 111 generates the sound signal.

That is, when the code signals (to) and (to) match, the output (to) is given to the speech synthesis output device TAI, and
If the code signals do not match, the output C39 is sent to the voice synthesis output device 4 to generate the voice corresponding to NO to enter the room.

Figure 8 shows yet another example, in which the code signal (to) generated from the OQI is transferred to the memory (to) on the condition that the two code signals (to) and (to) match in the matching circuit (b). The card is recorded on each card so that it can be later determined which card holder entered the room.

Figure 9 shows yet another example, in which the matching output of the matching circuit is counted by a counting circuit (43) to determine how many times a person who owns a card with which code number has entered the room, and the counted value and the code number are counted by a counting circuit (43). and are associated with each other by the recording control circuit @4 and stored in the memory T.
, 42, and by looking at the contents of the memory (42), it is easy to know who has entered the computer room and how many times.

Note that 05 is a display for checking the contents of the memory at any time, or an output device such as a printer.

As described above, the present invention is effective for controlling access to storage rooms for highly important materials, computer rooms that handle important data or information, and even research and development rooms where the number of people entering the room is limited. .

[Brief explanation of drawings]

FIG. 1 is a diagram showing the relationship between a computer room as a specific room and the computers installed therein, and FIG. 2 is a diagram showing a card with built-in computer C that is a feature of the present invention. FIG. 3 is a diagram for explaining the mutual relationship between the IC built-in card and the card reader, and FIGS. 4 to 9 are diagrams showing essential parts of some embodiments of the present invention. +1) is the computer room, (2) is the computer, (3) is the door,
(4) is a locking mechanism, (5) is a door opening/closing control device, (
7) is a card reader, (8) is a card, (9) is a plastic plate, DI is an integrated circuit, (11) is an input/output terminal,
fla&'! First signal circuit. αJ is the second signal circuit, and (1!+a) is the expiration date identification function. α field, αη is the connector, (goods) is the speech synthesis output device, (
4υ is a speaker, (6) is a memory, and G is a timing gate. DM is an expiration date setting memo IJ, and K is a password entry key. Note that the same or corresponding parts in the two figures are indicated by the same reference numerals. Agent Masuo Oiwa Figure 1 Figure 4 Figure 6 Figure 7

Claims (7)

[Claims] (1) If the PIN code is installed outside a designated room, is in the possession of a specific person, and the PIN number entered using the PIN key is the same as the pre-registered PIN number, the expiration date is The authenticity of the card used to open and close the door is determined by sending a predetermined signal to a card with a built-in integrated circuit that has been set up as A card reader confirms the identity of the customer, and if the card confirmed by the card reader is valid and is valid based on the above-mentioned PIN number, the door will be unlocked. and control means for generating a signal. The door is unlocked by the output signal of this control means. Or an entry control device equipped with a locking mechanism. (2) If the PIN is installed outside a specific room, is in the possession of a specific person, and the PIN entered using the PIN is the same as a pre-registered PIN, the expiration date is electronic. It has the function of generating a pulse signal synchronized with the pulse signal generated from the integrated circuit built-in card set to A card reader with a function to stop the generation of pulse output. A control means that generates a signal to unlock the door when the card read by the reader is valid and the card reader operates normally;
An entry control device comprising a locking mechanism that unlocks or locks a door in response to an output signal from the control means. (3) If a PIN is installed outside a specific room, is in the possession of a specific person, and the PIN entered using the PIN entry key is the same as a pre-registered PIN, the expiration date is electronic. A predetermined signal is sent to a card with a built-in integrated circuit set to produce a predetermined output from the integrated circuit. A card reader configured to collate the output with a collation circuit and stop output from the integrated circuit if the collation result is correct, the operating state of this card reader, and the validity period of the card. An entry control device comprising: a control means that generates a signal to unlock a door; and a lock mechanism that unlocks or locks the door in response to an output signal from the control means. (4) If the PIN code is installed outside a specific room, is in the possession of a specific person, and the PIN number entered using the PIN entry key is the same as a pre-registered PIN number, the expiration date is electronic. A card reader that generates a code signal unique to each card from a card with a built-in integrated circuit set to , a control means that generates a signal to unlock the door based on the output of the card reader and that the card is valid, and a lock that unlocks or locks the door based on the output signal of the control means. An entry control device equipped with a mechanism. (5) If the PIN code is installed outside a specific room, is in the possession of a specific person, and the PIN entered using the PIN key is the same as a pre-registered PIN, the expiration date is electronic. A card reader that generates a code signal unique to each card from a card with a built-in integrated circuit set to , a voice synthesis output device that generates a voice output according to the card discrimination result by the card reader, an output of the card reader,
An entry control device comprising: a control means that generates a signal to unlock a door when the card is valid; and a locking mechanism that unlocks or locks the door in response to an output signal from the control means. (6) If the PIN code is installed outside a specific room, is in the possession of a specific person, and the PIN entered using the PIN key is the same as a pre-registered PIN, the expiration date is electronic. A card reader that generates a code signal unique to each card from a card with a built-in integrated circuit set to a card, and also compares the code signal with a pre-registered code and generates a predetermined output when they match. and a memory that is connected to this card reader and records a card-specific code generated from the integrated circuit on the condition that the two codes match, and that the two codes match in the card reader. Please note that the above card is still valid. and control means for generating a signal to unlock the door. The door is unlocked by the output signal of this control means. Or an entry control device equipped with a locking mechanism. (7) If the PIN code is installed outside a specific room, is in the possession of a specific person, and the PIN entered using the PIN key is the same as a pre-registered PIN, the expiration date is electronic. A code signal unique to each card is generated from a card with a built-in integrated circuit installed in the card, and the code signal is compared with a pre-registered code, and when the two match, a predetermined output is generated. Furthermore, there is provided a card reader configured to count the number of times the two codes match, and record the counted value and a code number generated from the integrated circuit in a memory in association with each other; Room entry control comprising: a control means that generates a signal to unlock the door based on the reading result and that the card is within its validity period; and a locking mechanism that unlocks or locks the door based on the output signal of the control means. Device.