JP6818345B2 - An alarm sensor for detecting fraudulent attacks and a safe that uses it - Google Patents

Description

The present invention relates to an alarm sensor for detecting fraudulent attacks that can accurately detect that a fraudulent attack has been applied to a storage structure such as a safe, and a safe that uses the alarm sensor.

Various sensors have been proposed and put into practical use in order to detect that an unauthorized attack has been applied to a structure for storing an article and to warn the outside of the attack (for example, Patent Document 1).

The most common form of these sensors is to fold and arrange electric wires at sufficiently small pitches on an insulating substrate to form a panel, which is incorporated into each wall surface of the structure. If a hole is illegally drilled in the wall surface, the electric wire on the insulating substrate is cut, and this can be electrically detected to detect an illegal attack. The electric wire on the insulating substrate may be replaced with an optical fiber.

Further, a form in which two conductive liquid layers are formed by sandwiching an insulating sheet is also known. When a hole is made in the wall surface incorporating this type of sensor, the two liquid layers are electrically conductive through the hole formed in the insulating sheet, and this is detected to detect an unauthorized attack.

Japanese Unexamined Patent Publication No. 2004-46863

According to the former of the prior art, the electric wire or the optical fiber on the insulating substrate needs to form a so-called one-stroke pattern, so that a unique pattern is required according to the size of the wall surface of the structure. There was a problem that the production tended to be complicated. Further, in the latter case, there is a problem that it is not always easy to industrially realize a structure in which two liquid layers are formed on both sides of the insulating sheet, and the practicality is not sufficient.

Therefore, an object of the present invention is to use an alarm sensor for detecting fraudulent attacks, which is easy to manufacture and has excellent practicality, by adopting a conductive mesh material in view of the problems of the prior art. To provide a safe to do.

The configuration of the first invention (referring to the invention according to claim 1, the same shall apply hereinafter) according to the present application for achieving such an object is an alarm sensor for detecting an unauthorized attack on a storage structure, and has a structure. It is provided with a set of two conductive mesh materials to be attached to each wall surface of the body, and the mesh materials are formed in a sheet shape or a prepreg shape using conductive strands, respectively, on the wall surface of the structure. Even if it is cut according to the size, it can be used because it can detect an illegal attack, and it is insulated from each other over the entire surface of each wall surface and arranged in a double stack, and electrically conductive to each other. The gist is to detect fraudulent attacks.

The configuration of the second invention (referring to the invention of claim 2; the same shall apply hereinafter) includes an alarm sensor for detecting an unauthorized attack according to the first invention and a control unit that transmits an e-mail to the outside when the alarm sensor operates. Is the gist.

It is possible to add a destruction unit that mechanically destroys the stored memory disk when the alarm sensor operates.

According to the configuration of the first invention, the conductive mesh material attached to each wall surface of the structure is subjected to an unauthorized attack from the outside through an attacking tool such as a drill or a diamond cutter. Since they are electrically conductive with each other, this can be detected to detect an unauthorized attack. The conductive mesh material can be formed into a thin sheet having an arbitrary pitch through, for example, a net structure, a woven structure, a knitted structure, etc. by using a conductive wire such as a metal wire or carbon fiber. Alternatively, they may be aligned in parallel with each other to form a single-layer or multi-layer prepreg. The two mesh materials may be insulated from each other via a thin insulating sheet and arranged in a double manner, and can be arbitrarily cut and used according to the size of the wall surface of the structure. There is an advantage that the degree of freedom is extremely high. It is preferable that the two mesh materials are embedded in the wall surface of the structure together with the intermediate insulating sheet or attached to the inner surface side of the wall surface. Further, in the mesh material, when the wall surface is destroyed by a hammer or the like, the strands of the mesh materials exposed from the broken portion of the wall surface come into contact with each other and become electrically conductive.

In the first invention, the storage structure means an arbitrary structure having a space for storing goods and people inside, for example, a safe, a storage, a storage, and the like for transporting goods. Containers and hulls, truck boxes, structures for critical equipment, prisoner's vaults in prisons, etc. shall be included.

According to the configuration of the second invention, the control unit can send an e-mail to the outside when the alarm sensor for detecting an unauthorized attack operates, and notify the outside of the fact of an unauthorized attack on the safe. The mail may be transmitted by any line such as wired, wireless, and the Internet. In addition, when the user of the safe and the administrator are different persons, detailed information such as whether or not the user is in a regular use state and whether or not there is a misuse may be sent by e-mail to the administrator.

If a memory disk destruction part is added, the destruction part can be activated to mechanically destroy the stored memory disk when an unauthorized attack is received, so that the memory disk can be stolen by an unauthorized attack. Can effectively prevent such situations. The destruction portion can mechanically break and destroy the memory disk by, for example, a wire cutter, a heater wire, a laser cutter, a hydraulic cutter, or the like. However, the memory disk referred to here refers to a plastic disk memory such as a CVD, DVD, or Blu-ray disc.

Schematic explanatory diagram of the overall configuration (1) Schematic diagram of the overall configuration (2) Overall configuration perspective view (1) Block system diagram Outline configuration diagram (1) Outline configuration diagram (2) Program flowchart Overall configuration perspective view (2)

Hereinafter, embodiments of the invention will be described with reference to the drawings.

The alarm sensor 10 for detecting fraudulent attacks includes a set of two conductive mesh materials 11 and 11 (FIG. 1). In FIG. 1, the alarm sensor 10 is commonly installed on each wall surface of the double structure including the outer plate 21 and the inner plate 22 of the safe 20. However, FIGS. 1 (A) and 1 (B) are a schematic vertical sectional view and a partially broken schematic perspective view of the safe 20, respectively, and FIG. 1 (C) shows the mesh material 11 at the time of an illegal attack by the drill D. 11 is a schematic operation sectional view of a main part.

In FIG. 1, the two mesh materials 11 and 11 are insulated from each other with an insulating sheet (not shown) interposed therebetween, and are arranged in a double manner as a whole. Regardless of the illustration, it is assumed that the alarm sensor 10 is mounted on each wall surface of the safe 20 without leaving a substantial space between the outer plate 21 and the inner plate 22. Further, regardless of FIG. 1, the alarm sensor 10 may be divided into each wall surface of the safe 20, and the inner and outer mesh materials 11 and 11 on each wall surface may be electrically connected to all the wall surfaces.

When an unauthorized attack such as drilling a hole in the safe 20 is applied from the outside to an arbitrary wall surface of the safe 20 (FIG. 1 (C)), the mesh materials 11 and 11 come into contact with the alarm sensor 10 to generate electricity. Conducts. Therefore, it is possible to detect this and detect the fact of an unauthorized attack. As for the electrical continuity of the mesh materials 11 and 11, as shown in FIG. 1C, not only one mesh material 11 is deformed and contacts the other mesh material 11 side, but also the mesh materials 11 and 11 Both may be electrically conductive via a drill D penetrating the. Further, the alarm sensor 10 made of the mesh materials 11 and 11 can operate sufficiently effectively even for sabotage by a tool other than the drill D.

Other embodiments

The alarm sensor 10 is configured by filling the conductive liquid 12 between the outer plate 21 and the inner plate 22 constituting the hollow wall surface of the safe 20, and arranging the electrodes 13 and 13 for level detection. Can be done (FIGS. 2 (A), (C)). However, FIGS. 2 (A) and 2 (B) are a schematic vertical sectional view and a schematic vertical sectional enlarged configuration diagram of the safe 20, respectively, and FIGS. 2 (C) and 2 (D) are a schematic operation diagram and an enlarged main part, respectively. It is a schematic operation diagram, and FIG. 2 (E) is a comparative explanatory diagram corresponding to FIG. 2 (D).

The space between the outer plate 21 and the inner plate 22 of the safe 20 is formed in a hollow shape capable of filling the liquid 12 via spacers 23, 23 ... That bend in a crank shape (FIG. 2B). Further, the electrodes 13 and 13 are fixed downward with respect to the top surface of the outer plate 21 (FIG. 2 (C)). Therefore, when the liquid 12 is fully filled between the outer plate 21 and the inner plate 22 so that both the electrodes 13 and 13 sink (FIG. 2A), the electrodes 13 and 13 are electrically connected via the liquid 12. Conducts to.

On the other hand, when a hole is made in the wall surface by an illegal attack by, for example, a drill D from the outside of the safe 20 (FIG. 2 (C)), the liquid 12 causes internal and external leaks 12a and 12a, and the level of the liquid 12 drops. Then, the electrodes 13 and 13 are exposed above the liquid 12, and the conduction between the electrodes 13 and 13 is cut off. Therefore, this can be electrically detected to detect an unauthorized attack. At this time, even if the cutting edge of the drill D happens to hit the position of the spacer 23, the spacer 23 is bent (FIGS. 2B and 2D), so that the liquid 12 leaks 12a without fail. , Unauthorized attacks can be detected reliably. On the other hand, if the spacer 23 is linear (FIG. 2 (E)), the drill D may penetrate the spacer 23 and prevent leakage 12a of the liquid 12, and an unauthorized attack may not be detected. ..

An electrode 14 for detecting the leakage 12a of the liquid 12 to the indoor side may be arranged on the floor inside the safe 20 (FIG. 2C). The electrode 14 can detect the leak 12a of the liquid 12 prior to the detection of the level drop of the liquid 12 by the electrodes 13 and 13, and can detect an unauthorized attack more quickly.

The safe 20 incorporating the alarm sensor 10 of FIG. 1 or 2 includes an outer door 24 and an inner door 25 (FIG. 3).

A dial lock with a key (not shown) is attached to the outer door 24, and a key 25a for inputting a personal identification number is mounted on the inner door 25. A camera 26 is arranged above the inner door 25, and a control unit 30 is incorporated in the safe 20.

The control unit 30 includes a microcomputer 31 for connecting the alarm sensor 10 and the key 25a (FIG. 4).

The microcomputer 31 is supplied with power from the commercial power supply AC via the board power supply 32, and a backup battery BT is connected to the output side of the board power supply 32. Further, the microcomputer 31 is connected to both an external Internet line, a telephone line, a mobile phone line, and other communication lines via any of the Wi-Fi terminal 33a, the Blu-ray terminal 33b, the USB terminal 33c, and the LAN terminal 33d. It is possible to communicate in the direction. Further, the microcomputer 31 is connected to a display 25b for operating instructions such as a key 25a, a solenoid 25c for unlocking and controlling the inner door 25, a door sensor 25d for detecting the opening and closing of the inner door 25, and a camera 26. A destruction unit 40 that destroys the memory disk in the safe 20 is connected. In addition to supplying power from the commercial power supply AC, the destruction unit 40 is also supplied with power from a backup battery (not shown).

The destruction unit 40 can destroy a plurality of memory disks M, M ... Stored in a row in a safe 20 at once via, for example, a heater wire 41 (FIGS. 5A, 5A, B)). That is, the heater wire 41 is linearly stretched and held via appropriate movable supports 41a and 41a (FIG. 5A), and is energized and heated to heat the heater wires 41 in the radial direction of the memory disks M, M ... (In the direction of the arrow in FIG. 5B), the memory disks M, M ... Can be melted and destroyed at once in the radial direction.

Further, the breaking portion 40 may be a wire cutter 42 wound around the sprockets 42a and 42a (FIG. 6A). By rotationally driving the wire cutter 42 via the sprockets 42a and 42a and advancing in the radial direction of the memory disks M, M ... (in the direction of the arrow in FIG. 6B), the diameters of the memory disks M, M ... It can be cut in the direction and destroyed. The breaking unit 40 may have a form other than those shown in FIGS. 5 and 6.

The operation of the control unit 30 in FIG. 4 is as shown in the program flowchart of FIG. 7, for example. However, in the program of FIG. 7, in addition to unlocking the dial lock to open the outer door 24 of the safe 20 and operating the key 25a to open the inner door 25, an unauthorized attack on the safe 20 is executed. It is assumed that the operation is started when the alarm sensor 10 is operated.

When it was first confirmed that the program was not activated due to the operation of the alarm sensor 10 (program step (1) in FIG. 7, hereinafter simply described as (1)), the key 25a was operated. (2), and then confirm the correctness of the password entered via the key 25a (3). If the password is correct (3), the solenoid 25c is driven to unlock the inner door 25 and the opening of the inner door 25 is confirmed via the door sensor 25d (4), and the above operation content information is provided as date and time information. It is set and memorized together with (5), and a series of operation content information is sent by e-mail to a predetermined contact to report (6). The above operation corresponds to, for example, a case where a legitimate user of the safe 20 inputs a legitimate password to use the inside of the safe 20 legitimately, and the fact is that the e-mail of the program step (6) is sent. The administrator will be notified via this. However, the e-mail sent in the program step (6) can be attached with the shooting data of a moving image or a still image such as a face photograph of the user taken by the camera 26.

Next, in the program step (3), if the entered password is incorrect, the display 25b is displayed to that effect to instruct the user to re-enter the password, and the number of times the password is entered incorrectly is increased. After confirming that the number of times is within the permissible setting number (7), set and memorize the information that the safe 20 could not be opened due to an error in the password (8), and memorize the fact. Send an email to the administrator (6). At this time as well, the photographed data of the user by the camera 26 can be attached to the e-mail.

When the alarm sensor 10 operates due to an unauthorized attack on the safe 20 (1), the program activates the destruction unit 40 to destroy the memory disks M, M ... Stored in the safe 20 (9), and the program thereof. Information to that effect is set and stored together with date and time information (10), and the fact is sent to the administrator by e-mail to report (6). The same applies when it is detected in the program step (7) that the number of times the password is erroneously entered exceeds the set allowable number ((7), (9), (10)).

In FIGS. 3 to 7, if a door sensor for detecting the opening and closing of the outer door 24 of the safe 20 is provided and connected to the microcomputer 31, the outer door 24 is opened by operating the camera 26 by opening the outer door 24. In addition to being able to reliably take a photograph of a person's face, for example, it detects that the outer door 24 has been opened illegally without using a key, and activates the destruction unit 40 before the inner door 25 is opened. It is also possible. However, in order to realize the latter, a solenoid for the outer door 24 is added in order to electrically open the outer door 24 by regular use of a dial lock with a key. The destruction unit 40 may omit the memory disks M, M ... When there is no plan to store them in the safe 20. Further, a so-called lift sensor may be added in order to detect the illegal removal of the safe 20. The control unit 30 can deal with the operation of the lift sensor in the same manner as when the alarm sensor 10 is operating.

The inside of the safe 20 may be divided into a plurality of small chambers with an inner door 25 (FIG. 8). Door sensors 25d for detecting opening / closing are attached to the inner doors 25, 25 ... Of each small room, and the user of the safe 20 is allowed to use only one or a plurality of specific small rooms designated in advance. Other uses are prohibited. Therefore, as long as the user can use the available small room properly, send an email to the administrator, and send an email to the administrator only when the inner door 25 of the small room that is not allowed to be used is opened. By doing so, it is possible to reduce the number of emails that reach the administrator and make it easier to manage.

In the above description, the user and manager of the safe 20 may be, for example, a person in charge of a company or an organization and its boss, or as a single or multiple children living separately from an elderly parent in a general household. , So-called transfer fraud and other damage prevention measures may be used. Therefore, the destination of the mail in the program step (6) of FIG. 7 may be a single destination or a plurality of destinations, if necessary.

The safe 20 can be an arbitrary structure provided with a space for storing articles and people.

The present invention can be widely and preferably applied to applications for detecting an unauthorized attack targeting an arbitrary structure other than the safe 20.

M ... Memory disk 10 ... Alarm sensor 11 ... Mesh material 12 ... Liquid 12a ... Leakage 13, 14 ... Electrode 20 ... Safe 30 ... Control unit 40 ... Destruction unit

Patent applicant Linear Circuit Co., Ltd.

Claims (3)

It is an alarm sensor for detecting an unauthorized attack on a structure for storage, and is provided with a set of two conductive mesh materials to be attached to each wall surface of the structure, and each of the mesh materials is conductive. Even if it is formed into a sheet shape or a prepreg shape using the wires of the above and cut according to the size of the wall surface of the structure, an illegal attack can be detected and it can be used. alarm sensor for detecting fraudulent attacks and detecting illegal attacks by arranged stacked doubly insulated the entire surface Wataru Ri互 physician, electrically connected to each other. A safe comprising the alarm sensor for detecting fraudulent attacks according to claim 1 and a control unit that sends an e-mail to the outside when the alarm sensor operates. The safe according to claim 2, further comprising a destruction portion that mechanically destroys a stored memory disk when the alarm sensor is operated.

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