JP2654416B2 - Security equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security device for collating an input code by a key switch with a registration code and transmitting various permission signals when the collation matches.

[0002]

2. Description of the Related Art FIG. 4 is a block diagram showing a conventional security device. In the figure, each of 10 to 19 is a number 0
Key switches 20 corresponding to .about.9, 20 are key switches for transmitting a code generation signal and instructing execution (ENT) of code generation of a personal identification number.
After inputting a predetermined digit number from 0 to 19, it is input by pressing the execution key switch 20. Reference numeral 2 denotes a key input circuit for encoding a password input by the key switches 10 to 20.

[0003] Further, 3 outputs a search address to the registration code memory 4 based on the input code from the key input circuit 2 to read out the registration code, and outputs an OK signal when the input code matches the registration code, and outputs an OK signal when the input code does not match. A verification circuit 4 for transmitting an NG signal and an emergency signal when the input code matches the emergency code is a registration code memory 4 storing a registration code and an emergency code at a predetermined address.

Further, 5 is an OR gate for transmitting an unlocking signal to an electric lock of a door of a room to be controlled to enter or leave, based on an OK signal or an emergency signal from the collating circuit 3, and 6 is a collating circuit. This is a data transmission circuit for transmitting the output and input code from 3 to a monitoring computer 7 provided at a remote place.

Next, the operation according to the above configuration will be described. By inputting a personal identification number of a predetermined digit by the key switches 10 to 19 and pressing the key switch ENT20, the key input circuit encodes the input personal identification number as an input code and outputs it to the matching circuit 3. Based on this, the matching circuit 3 searches the registration code memory 4 while outputting the search address, and determines whether there is a registration code that matches the input code.

The matching circuit 3 outputs an OK signal if there is a matching registration code, whereby the data transmitting circuit 6 outputs the input code and the OK signal to the monitoring computer 7 in a predetermined transmission format. At the same time, an unlock signal is output via the OR gate 5 to unlock the door and allow entry to the room. On the other hand, if there is no matching registration code, the matching circuit 3 outputs an NG signal.
The signal is output to the monitoring computer 7.

When the ten-key operation is compelled by a robbery or the like, a predetermined emergency number is entered by the key switches 10 to 19 instead of the personal identification number, and the key switch ENT20 is pressed. By the same operation as described above, the matching circuit 3 determines that the input code by the key input operation described above matches the emergency code stored in the registration code memory 4. The matching circuit 3
In this case, an emergency signal is output, the emergency signal is transmitted to the monitoring computer 7 via the data transmission circuit 6, and an emergency situation is reported to a supervisor. At the same time, an unlock signal is output via the OR gate 5 to enable entry into the room.

[0008]

However, in the above-described security device, when the ten keys are operated by being threatened, a specific emergency number must be used instead of the personal identification number to report the situation. However, the emergency number is rarely used, and it is difficult to memorize the emergency number because it is usually set with an irregular number. Furthermore, if a simple number such as a serial number is set, there is a risk that the threat actor will realize, and on the other hand, there is a possibility that a third party may accidentally input the information, and there is a possibility that an emergency call is erroneously made.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a security device capable of reporting that a ten-key operation has been performed intimidated without using an emergency number. For the purpose.

[0010]

According to a first aspect of the present invention, there is provided a security device for collating an input code of a personal identification number using a numeric keypad with a registration code, wherein at least one of the key switches of the numeric keypad is provided with a predetermined number. It is provided with a means for sending an emergency signal when a pressing force exceeding the value is applied.

According to a second aspect of the present invention, there is provided a security device for collating an input code of a personal identification number by a ten-key with a registration code, when at least one of the key switches of the ten-key is turned on for a predetermined time or more. It is provided with means for transmitting an emergency signal.

[0012]

According to the first aspect of the present invention, when a pressing force of a predetermined value or more is pressed to at least one of the key switches of the numeric keypad, an emergency signal is transmitted by the pressing force.

According to the present invention, an emergency signal is transmitted when the ON time of at least one of the key switches of the numeric keypad has continued for a predetermined time or more.

[0014]

【Example】

Embodiment 1 FIG. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration diagram of a security device in this embodiment. The difference from the conventional example shown in FIG. 4 is that no emergency code is registered in the registration code memory 4 and the collation circuit 3 sends an emergency signal. Instead, only the OK signal (unlock signal) and the NG signal are transmitted. The emergency signal is generated from the execution key switch 21 for transmitting a code generation signal to the key input circuit 2 and transmitted to the data transmission circuit.

Here, the execution key switch 21 has, for example, a structure shown in FIG. That is, execution key switch 21 comprises a fixed frame 21a which is disposed a contact b _1, b ₂ to the recess bottom surface, it is elastically provided through the coil spring 21c to the fixed frame 21a, anti the spring pressure of the coil spring 21c when it is pressed in the X-direction by the contact b ₃ abutting on said contact b _1, b ₂ while disposed in the recess outside the bottom surface, disposed contact a _1, a ₂ in the recess bottom surface, and A conductive spring 2 comprising a leaf spring which bends and comes into contact with the contacts a ₁ and a ₂ when receiving a pressing force in the X direction between both side surfaces in the concave portion.
It has a movable frame 21b on which 1d is provided, and a convex push button 21e fitted to the movable frame 21b and applying a pressing force in the X direction to the conductive spring 21d.

When the push button 21e is pressed with a first pressing force, the center of the conductive spring 21d bends in the X direction, and the conductive spring 21d closes contact between the contacts a ₁ and a ₂ to input a key. When a code generation signal is sent to the circuit 2, and the push button 21e is pressed with a second pressing force larger than the first pressing force, the movable frame 21b is pressed in the X direction against the coil spring 21c. contact b ₁ of the contact b ₃ rare movable frame 21b fixed frame 21a, b ₂
An emergency signal is transmitted by closing the gap.

Next, the operation according to the above configuration will be described. First, in FIG. 2, the push button 2 of the switch ENT21
Pressing 1e in the X direction in the normal pressing force, the conductive spring 21d is curved by push button 21e, and the contact a ₁ and the contact point a ₂ is between the contacts are short-circuited by the conductive spring 21d is closed. At this time, by setting the spring pressure of the coil spring 21c sufficiently high, the movable frame 21b is hardly pushed in and the contact b
₃ does not contact the contact point b _1, b _2. Also, key switch E
When the push button of the NT21 pushes the push button 21e in the X direction with a pressing force equal to or more than a predetermined value, the contacts a ₁ and a ₂ are closed by the same operation as described above, but the movable frame is further opposed to the spring pressure of the coil spring 21c. 21b is pushed, is short-circuited by the contact b ₁ and the contact b ₂ and the contact b _3, the contacts are closed.

In FIG. 1, normal operation is as follows. As in the prior art, when an encryption number is input by the key switches 10 to 19 and the key switch ENT21 is pressed with a normal pressing force, the contacts a ₁ and a ₂ are closed. As a result, in the same manner as in the prior art, the matching circuit 3 outputs OK
A signal or an NG signal is transmitted, and an OK signal or an NG signal and an input code are transmitted to the monitoring computer 7 via the data transmission circuit 6. At the same time, if the verification by the verification circuit 3 matches, an unlock signal is output, the door is unlocked, and the room can be entered.

In the event of a threat, the following operation is performed. As in the normal case, when the user's personal identification number is input using the key switches 10 to 19 and the key switch ENT21 is pressed with a pressing force equal to or more than a predetermined value, the contacts a ₁ and a ₂ , b ₁ and b ₂ are both closed. . At this time, the O
K signal and the input code is transmitted to the monitoring computer 7 via the data transmission circuit 6, the door but becomes unlocked, additionally emergency signal by the contact b ₁ and b ₂ of the key switch ENT21 is closed Is a monitoring computer 7 via a data transmission circuit 6
Will be notified. Also, a third party may accidentally enter the key switch EN.
When T21 is pressed strongly, the collation result becomes NG, an NG signal is transmitted together with the emergency signal, no unlock signal is output, and the door is not unlocked.

Therefore, according to the first embodiment, the ten-key operation at the time of intimidation can be reported by the pressing force of the key switch, so that the operation is apparently the same as a normal operation, and there is no danger that the threatening person will realize. In addition, there is no fear of forgetting the number, and the situation can be reported without fail. Furthermore, even if a third party accidentally presses the key switch accidentally, it can be distinguished from an emergency by transmitting an NG signal.

Embodiment 2 FIG. FIG. 3 shows a configuration according to the second embodiment of the present invention. The first embodiment differs from the first embodiment shown in FIG. 1 in that an execution key switch 20 for transmitting a code generation signal to the key input circuit 2 is constituted by a normal key switch similar to the conventional example shown in FIG. In a normal state, the reset state is maintained by the output of the inverter INV for inverting the insignificant state of the code generation signal from the execution key switch 20. The reset state is set when the code generation signal is sent out and the oscillator 8 is set. The counter circuit 9 counts the clock signal, and when the count continues for a predetermined time, for example, 3 seconds or more, makes the MSB (most significant bit) output significant and sends an emergency signal to the data transmission circuit 6.

Next, the operation according to the above configuration will be described. First, the operation is as follows in a normal state. Key switch E
While NT20 is OFF, the code generation signal is insignificant,
Since a significant signal is input to the reset input of the counter circuit 9 via the inverter INV, the counter circuit 9 is reset. In this state, similar to the first embodiment,
Enter a password using key switches 10 to 19,
Set the key switch ENT20 to normal length time (about 1 second)
Push. Then, the code generation signal becomes significant, and at the same time when the reset input of the counter circuit 9 is released, a rising signal is input to the start input.

By setting the time until the MSB output of the counter circuit 9 becomes significant to about 3 seconds, about 1 second is obtained.
After a second, the key switch ENT20 is released and the counter circuit 9 is released.
Is reset again, the MSB output remains insignificant. Thereafter, a normal collation operation is performed in the same manner as in the first embodiment without outputting an emergency signal.

The operation at the time of threat is as follows. First, the user inputs his / her personal identification number as usual,
Press NT20 for a predetermined time (3 seconds or more). Then, the counter circuit 9 starts counting as in the normal case. At this time, since the count continues for 3 seconds or more, the MSB output becomes significant, and an emergency signal is input to the data transmission circuit 6. Thereafter, an emergency signal is sent to the monitoring computer 7 as in the first embodiment.

Therefore, according to the second embodiment, the ten-key operation at the time of intimidation can be reported by the ON time of the execution key switch ENT20, so that the same effect as in the first embodiment can be obtained.

[0026]

As described above, according to the first aspect of the present invention, the ten-key operation at the time of threat is notified by the pressing force of the key switch, so that the operation is apparently the same as the normal operation. There is no danger of being intimidated by the threatening person, and the situation can be reliably reported without fear of forgetting the number. Further, even if a third party accidentally presses the key switch accidentally, it is possible to distinguish from an emergency by transmitting an NG signal.

According to the second aspect, the ten-key operation at the time of intimidation can be reported by the ON time of the key switch, so that the same effect as the first aspect can be obtained.

[Brief description of the drawings]

FIG. 1 is a configuration diagram according to a first embodiment of the present invention.

FIG. 2 is a structural diagram of an execution key switch ENT21 of FIG. 1;

FIG. 3 is a configuration diagram according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram of a conventional example.

[Description of Signs] 2 Key input circuit 3 Matching circuit 4 Registration code memory 9 Counter circuit 10 Key switch 19 Key switch 20 Execution key switch 21 Execution key switch

Claims (2)

(57) [Claims] 1. A security device for collating an input code of a personal identification number by a numeric keypad with a registration code, wherein a means for sending an emergency signal when a pressing force of a predetermined value or more is applied to at least one of the key switches of the numeric keypad. A security device comprising: 2. A security device for collating an input code of a personal identification number by a numeric keypad with a registration code, comprising means for sending an emergency signal when an ON time of at least one key switch of the numeric keypad continues for a predetermined time or more. A security device, characterized in that: