A violent-opening-proof intelligent business library and its anti-unlocking system

Abstract

The present invention discloses an anti-violent opening type intelligent business library and its anti-unlocking system, which relates to the field of intelligent business libraries, including a business library main body, a sealed door, a shaft rod and an encryption lock. One side of the sealed door is sleeved with a shaft rod, the front of the sealed door is installed with an encryption lock, and the front of the sealed door is provided with a security mechanism. The security mechanism includes a partition, a trigger rod and a sensing block. The partition serves as an external protective layer of the sealed door and is used to bear external force impact. If the external force impact carried reaches a critical value, a corresponding displacement behavior is triggered. The trigger rod is used to receive the displacement behavior of the partition, contact with the sensing block and connect to the power supply to perform security behavior feedback. Further, when encountering violent behavior, the violent destructive behavior of violent destroyers can be curbed, providing a positive and direct deterrent. It only targets the violent opening activities of the sealed door. When the encryption lock of the business library main body is violently dismantled, the device can continue to effectively hinder the opening.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent business libraries, and in particular to an anti-violent opening intelligent business library and an anti-unlocking system thereof. Background Art

[0002] A business vault is a cash vault set up by specialized banks and commercial banks at their grassroots branches for daily cash receipts and payments. It stores daily working capital or other valuable physical items. An intelligent business vault, based on the traditional business vault, uses new technologies to digitally manage the vault's operational status, providing scientific digital decision-making for operational management. These vaults include video surveillance, behavioral analysis, biometric identification, anti-theft alarms, intercom broadcasts, and fire alarms.

[0003] In terms of anti-theft, the business database itself has strong encryption and locking, but it still has certain flaws:

[0004] 1. When the business database itself is attacked by malicious external forces, it is difficult to provide direct countermeasures against the malicious attack, resulting in the assets being kept in a highly threatening environment. Once a violent attack occurs, the remote alarm action requires time to wait for the security force's feedback, making it difficult to establish an effective defense mechanism on its own, which is not conducive to curbing or delaying the violent actions of the violent attacker.

[0005] 2. General image detection behavior often only analyzes the acquired images to determine whether there are any abnormal conditions. However, in actual scenarios, the monitoring images may be tampered with, resulting in the inability to respond to normal warning behaviors, making it difficult to combine actual sensing and image detection technologies. Summary of the Invention

[0006] (1) Technical problems solved

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides an anti-violent opening intelligent business library and an anti-unlocking system thereof, which can effectively solve the problems of the prior art.

[0008] (2) Technical solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] The present invention discloses an anti-violent opening intelligent business library and its anti-unlocking system, comprising a business library main body, a sealed door, a shaft rod and an encryption lock, wherein the sealed door is located inside the business library main body, a shaft rod is sleeved on one side of the sealed door, and the upper and lower ends of the shaft rod are fixedly connected to the inner wall of the business library main body, an encryption lock is installed on the front of the sealed door, and a security mechanism is provided on the front of the sealed door, wherein the security mechanism comprises a partition, a trigger rod and a sensing block, wherein the partition is slidably connected to the front of the sealed door, and the partition serves as an outer protective layer of the sealed door and is used to bear external force impact. If the external force impact carried reaches a critical value, a corresponding displacement behavior is triggered, and the trigger rod is used to receive the displacement behavior of the partition, contact the sensing block and connect the power supply to perform security behavior feedback;

[0011] The interior of the sealing door is provided with a slip-stop mechanism for restraining the rotation of the sealing door after the induction power supply is connected.

[0012] Furthermore, the security mechanism also includes a rubber ring, which is sleeved on the surface of the trigger rod. The elastic force applied by the rubber ring to the trigger rod and the recoil force applied by the trigger rod to the rubber ring are balanced with each other. The trigger rod is slidably connected to the inside of the sealed door, and the sensing block is fixedly connected to the inside of the sealed door.

[0013] Furthermore, the anti-slip mechanism includes a storage bin, which is opened on one side of the top of the sealed door, a sealing plug is inserted at the top of the storage bin, a movable bin is opened on the side of the sealed door close to the storage bin, the interior of the movable bin is slidably connected to a rubber ring, the top of the inner wall of the movable bin is fixedly connected to a connecting rod, a torsion spring is provided at the end of the rubber ring away from the shaft rod, one end of the torsion spring is fixedly connected to the connecting rod, and the other end of the torsion spring is fixedly connected to the bottom end of the inner wall of the movable bin.

[0014] Furthermore, one side of the inner wall of the rubber ring is provided with an opening 1, and the other side of the inner wall of the rubber ring is provided with an opening 2. The inner wall of the movable warehouse is provided with a hole groove 1 and a hole groove 2 respectively adapted to the opening 1 and the opening 2. When the rubber ring is in an upward state, the opening 1 and the opening 2 are connected with the hole groove 1 and the hole groove 2 respectively.

[0015] Furthermore, a spiral groove is formed on the surface of the shaft, and the spiral groove is connected to the second hole groove.

[0016] An anti-unlocking system for an intelligent business library that prevents violent opening, comprising:

[0017] The business storage end serves as a storage carrier for various physical objects to be kept and carries various functional modules;

[0018] The encryption module is used to restrict the opening and closing of encryption on the business storage end;

[0019] A vibration sensing module is used to sense the vibration force data experienced by the business storage terminal during normal deployment;

[0020] Image acquisition module, used to obtain image data of the control area of ​​the business storage end and perform preprocessing;

[0021] An analysis module is used to receive the vibration force data collected by the vibration sensing module and the pre-processed image data acquired by the image acquisition module, and perform comprehensive analysis;

[0022] The alarm module is used to receive comprehensive analysis information from the analysis module and determine whether to provide online alarm behavior feedback;

[0023] The security module is used to sense external force impact, passively trigger the anti-touch power-on behavior, and determine whether to actively trigger it based on the comprehensive analysis information of the analysis module.

[0024] Furthermore, during the comprehensive analysis process performed by the analysis module, if the vibration force data is lower than the preset standard threshold, it is marked as normal vibration; if the vibration force data is higher than the preset standard threshold, it is marked as abnormal vibration, and the pre-processed image data is obtained to perform scene analysis and determine whether the current abnormal vibration conforms to the preset logic based on the current scene.

[0025] Furthermore, the goal of the scene analysis is to perform facial recognition of people and devices in the area, and obtain information on unauthenticated people and abnormal devices.

[0026] Furthermore, the preset logic includes: when there is unauthenticated personnel and abnormal equipment information within the scene analysis, an alarm behavior is triggered.

[0027] Furthermore, the business storage end is electrically connected to the vibration sensing module, image acquisition module and encryption module through a medium, the analysis module is interactively connected to the alarm module, security module, vibration sensing module and image acquisition module through a wireless network, and the encryption module is electrically connected to the security module through a medium.

[0028] (3) Beneficial effects

[0029] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0030] 1. Through the deployed security mechanism, when the partition senses a violent impact, it will move. The rubber ring will release the restraint on the trigger rod, allowing the trigger rod to come into contact with the sensing block. The sensing block then supplies power to the trigger rod, which is then transmitted to the entire partition, creating a charged environment for the entire partition. When encountering violent acts, the violent acts of vandals can be curbed, providing a direct and positive deterrent. It is not easy to be triggered by mistake and only targets the violent opening of sealed doors, ensuring daily safety.

[0031] 2. Through the anti-slip mechanism deployed in conjunction with the security mechanism, when the security mechanism is triggered, the sealed door and the partition are both in a charged environment. At this time, after the torsion spring passes through electricity, it produces a contraction reaction under the action of the magnetic field, thereby connecting the opening 1 with the storage bin, thereby injecting the anti-slip medium in the storage bin into the spiral groove on the surface of the shaft through the opening 2. Then, in the security state, the rotation ability of the sealed door can be actively curbed, thereby directly preventing the normal opening behavior of abnormal personnel. Especially when the encryption lock of the business database body is violently dismantled, the equipment can continue to effectively hinder opening.

[0032] 3. The anti-unlocking system realizes multi-dimensional data collection through the vibration sensing module and the image acquisition module, and conducts comprehensive analysis in combination with the analysis module, thereby providing multi-level security protection. By analyzing abnormal vibrations, it avoids security defects caused by tampering of image data. It has passive and active trigger mechanisms. The passive trigger automatically protects when an external force impact is detected, while the active trigger takes further protective measures based on the judgment of the analysis module. This dual mechanism enhances the system's responsiveness and protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0034] Figure 1 It is the overall three-dimensional structural diagram of the present invention;

[0035] Figure 2 This is a three-dimensional structural diagram of the sealing door, partition and encryption lock in the present invention;

[0036] Figure 3 This is a front cross-sectional structural diagram of the movable bin, storage bin, and rubber ring of the present invention;

[0037] Figure 4 This is a frontal perspective structural diagram of the rubber ring of the present invention;

[0038] Figure 5 It is a cutaway structural diagram of the present invention;

[0039] Figure 6 For the present invention Figure 5 A local enlarged structural diagram at point A in the middle;

[0040] Figure 7 A three-dimensional structural diagram of the partition and the trigger rod in the present invention;

[0041] Figure 8 It is a framework diagram of the anti-unlocking system in the present invention.

[0042] The numbers in the figure represent: 1. Business library body; 2. Sealed door; 3. Partition; 4. Shaft;

[0043] The security mechanism includes: 5. encryption lock; 6. trigger rod; 7. sensor block; 8. rubber ring;

[0044] The anti-slip mechanism includes: 9, a torsion spring; 10, a connecting rod; 11, a first opening; 12, a second opening; 13, a sealing plug; 14, a storage bin; and 15, a movable bin. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] The present invention will be further described below with reference to the embodiments.

[0047] Example 1

[0048] An anti-violent opening intelligent service library of this embodiment, such as Figure 1-Figure 7 As shown, it includes a business library main body 1, a sealed door 2, a shaft rod 4 and an encryption lock 5. The sealed door 2 is located inside the business library main body 1. A shaft rod 4 is sleeved on one side of the sealed door 2. The upper and lower ends of the shaft rod 4 are fixedly connected to the inner wall of the business library main body 1. An encryption lock 5 is installed on the front of the sealed door 2. A security mechanism is provided on the front of the sealed door 2. The security mechanism includes a partition 3, a trigger rod 6 and a sensor block 7. The partition 3 is slidably connected to the front of the sealed door 2. The partition 3 serves as an external protective layer of the sealed door 2 and is used to bear external force impact. If the external force impact carried reaches a critical value, the corresponding displacement behavior is triggered. The trigger rod 6 is used to receive the displacement behavior of the partition 3, contact with the sensor block 7 and connect the power supply to perform security behavior feedback;

[0049] The security mechanism also includes a rubber ring 8, which is sleeved on the surface of the trigger rod 6. The elastic force applied by the rubber ring 8 to the trigger rod 6 and the recoil force applied by the trigger rod 6 to the rubber ring 8 are balanced with each other. The trigger rod 6 is slidably connected to the inside of the sealed door 2, and the sensing block 7 is fixedly connected to the inside of the sealed door 2. When the partition 3 is impacted by external force, the rubber ring 8 contacts the sealed door 2 and slides on the trigger rod 6, thereby causing the trigger rod 6 to trigger the sensing block 7 to connect the circuit.

[0050] Compared with existing technologies, it can counterattack immediately when impacted by external forces, establish an effective defense mechanism, and quickly curb and delay the violent behavior of violent instigators, thereby improving the security of the stored property.

[0051] Example 2

[0052] In other aspects, this embodiment also provides a slip-stop mechanism that can sense the power supply and then stop the rotation of the sealing door 2, such as Figure 3 As shown, the anti-slip mechanism includes a storage bin 14, which is opened on one side of the top of the sealed door 2, and a sealing plug 13 is inserted at the top of the storage bin 14. A movable bin 15 is opened on the side of the sealed door 2 close to the storage bin 14. The interior of the movable bin 15 is slidably connected with a rubber ring 8, and an opening 11 is opened on one side of the inner wall of the rubber ring 8, and an opening 2 12 is opened on the other side of the inner wall of the rubber ring 8. A hole groove 1 and a hole groove 2 are respectively opened on the inner wall of the movable bin 15 to match the opening 11 and the opening 2 12. When the rubber ring 8 is in the upward state, the opening 11 and the opening 2 12 are connected with the hole groove 1 and the hole groove 2 respectively. A spiral groove is opened on the surface of the shaft rod 4, and the spiral groove is connected with the hole groove 2. When the opening 11 and the opening 2 12 are connected with the hole groove 1 and the hole groove 2 respectively, the medium stored in the storage bin 14 is input into the threaded groove opened on the surface of the shaft rod 4, thereby preventing the shaft rod 4 from providing rotation support for the sealed door 2.

[0053] As a preferred implementation in this embodiment, Figure 3 As shown, the top end of the inner wall of the movable warehouse 15 is fixedly connected with a connecting rod 10, and a torsion spring 9 is provided at the end of the rubber ring 8 away from the shaft 4. One end of the torsion spring 9 is fixedly connected to the connecting rod 10, and the other end of the torsion spring 9 is fixedly connected to the bottom end of the inner wall of the movable warehouse 15. When the torsion spring 9 is electrified, a contraction reaction is generated, causing the rubber ring 8 to trigger the lifting state, thereby preventing the shaft 4 from slipping.

[0054] Compared with the existing technology, after the encryption lock 5 is destroyed, the sealed door 2 can be prevented from being maliciously opened, and some equipment functions can be actively destroyed to delay the malicious opening time of violent personnel.

[0055] Example 3

[0056] In this embodiment, an anti-unlocking system for an anti-violent opening intelligent business library is provided. Figure 8 As shown, including:

[0057] The business storage end serves as a storage carrier for various physical objects to be kept and carries various functional modules;

[0058] The encryption module is used to restrict the opening and closing of encryption on the business storage end;

[0059] A vibration sensing module is used to sense the vibration force data experienced by the business storage terminal during normal deployment;

[0060] Image acquisition module, used to obtain image data of the control area of ​​the business storage end and perform preprocessing;

[0061] Vibration sensing and image acquisition modules enable multi-dimensional data collection, combined with comprehensive analysis from the analysis module to provide multi-layered security protection. Abnormal vibrations and unauthorized personnel and equipment can be promptly detected and addressed. The image acquisition module acquires image data from the control area in real time, performs pre-processing and scene analysis, and can monitor the security status of the business storage end in real time. Combined with the online alarm system, it can respond quickly to abnormal situations, improving security efficiency.

[0062] The analysis module is used to receive the vibration force data collected by the vibration sensing module and the pre-processed image data obtained by the image acquisition module, and perform comprehensive analysis. During the comprehensive analysis process, if the vibration force data is lower than the preset standard threshold, it is marked as normal vibration; if the vibration force data is higher than the preset standard threshold, it is marked as abnormal vibration. The pre-processed image data is obtained and scene analysis is performed. The goals of scene analysis are: to perform facial recognition of people and equipment in the area, to obtain information on unauthenticated people and abnormal equipment, to perform facial recognition of people and equipment in the area, to accurately obtain information on unauthenticated people and abnormal equipment, and to avoid unauthorized access and operation. Through accurate analysis of the scene, potential security threats can be prevented in advance.

[0063] Based on the current scenario, the system determines whether the current abnormal vibration conforms to the preset logic. The preset logic includes: when the scene analysis contains unauthorized personnel and abnormal equipment information, an alarm action is triggered. The preset logic can be adjusted according to actual needs to flexibly adapt to the security requirements of different scenarios. When unauthorized personnel or abnormal equipment are detected, an alarm can be triggered immediately to ensure the security of the business storage end.

[0064] The alarm module is used to receive comprehensive analysis information from the analysis module and determine whether to provide online alarm behavior feedback;

[0065] The security module is used to sense external force impact, passively trigger the anti-touch power-on behavior, and determine whether to actively trigger based on the comprehensive analysis information of the analysis module. The security module uses passive and active triggering mechanisms. When the passive trigger detects an external force impact, it automatically performs protection, while the active trigger takes further protective measures based on the judgment of the analysis module. This dual mechanism enhances the system's responsiveness and protection effect.

[0066] The business storage end is electrically connected to the vibration sensing module, image acquisition module and encryption module through a medium; the analysis module is interactively connected to the alarm module, security module, vibration sensing module and image acquisition module through a wireless network; and the encryption module is electrically connected to the security module through a medium.

[0067] Compared with the existing technology, it avoids the limitation of general image detection behavior, which often only analyzes the acquired images to determine whether there are any abnormal conditions, so as to prevent the normal warning behavior from being unable to feedback normally when the monitoring image is tampered with. The actual sensing and image detection technology can be combined for processing.

[0068] Working principle: Before use, the present invention adds an external circuit to the sealed door 2. The sensor block 7 serves as the control end for whether the circuit is connected. It is triggered when it is hit by the trigger rod 6. The sealed door 2 and the partition 3 are both made of conductive materials. After opening the sealing plug 13, an anti-slip medium, such as fine sand or glue, is injected into the storage bin 14. Glue is used here. A certain gap must be left in the storage bin 14.

[0069] When an outsider violently hits the partition 3, the partition 3 is subjected to force, driving the rubber ring 8 to resist the sealed door 2. After the force is applied, the rubber ring 8 slides from the surface of the trigger rod 6. The rubber ring 8 no longer restricts the movement of the trigger rod 6. The trigger rod 6 triggers the sensor block 7, making the circuit connected. Since the sensor block 7 and the trigger rod 6 are evenly distributed between the sealed door 2 and the partition 3, even if the force point on the surface of the partition 3 is not unique, effective and timely triggering can be guaranteed;

[0070] When the sealing door 2 is in the energized state, the current is transmitted to the connecting rod 10, and then to the torsion spring 9 by the connecting rod 10. The torsion spring 9 contracts, and the torsion spring 9 drives the rubber ring 8 to rise in the movable chamber 15, so that the opening 11 is connected with the hole groove 1, and the opening 2 12 is connected with the hole groove 2. At this time, the glue in the storage chamber 14 is injected into the rubber ring 8 through the opening 11, and then injected into the spiral groove on the surface of the shaft rod 4 through the opening 2 12. The glue comes into contact with the air, so that the shaft rod 4 and the sealing door 2 are bonded. Even if the encryption lock 5 is damaged, the sealing door 2 cannot rotate normally relying on the shaft rod 4, thereby completing the anti-slip function.

[0071] The anti-unlocking system provides an efficient and reliable security solution for intelligent business libraries that can prevent violent opening by combining multi-dimensional data collection, intelligent analysis, automated security, and precise identification functions, significantly improving the security protection level of the business storage end.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An anti-violent opening intelligent business library, comprising a business library body (1), a sealing door (2), a shaft (4) and an encryption lock (5), wherein the sealing door (2) is located inside the business library body (1), a shaft (4) is sleeved on one side of the sealing door (2), and the upper and lower ends of the shaft (4) are fixedly connected to the inner wall of the business library body (1), and an encryption lock (5) is installed on the front of the sealing door (2), characterized in that: The front of the sealed door (2) is provided with a security mechanism, which comprises a partition (3), a trigger rod (6) and a sensing block (7). The partition (3) is slidably connected to the front of the sealed door (2). The partition (3) serves as an external protective layer of the sealed door (2) and is used to bear external force impact. If the external force impact carried reaches a critical value, a corresponding displacement behavior is triggered. The trigger rod (6) is used to receive the displacement behavior of the partition (3), contact the sensing block (7) and connect the power supply to perform security behavior feedback. The sealing door (2) is provided with an anti-slip mechanism inside thereof for restraining the rotation of the sealing door (2) after the induction power supply is connected; The anti-slip mechanism includes a storage bin (14), the storage bin (14) is opened on one side of the top of the sealing door (2), a sealing plug (13) is inserted at the top of the storage bin (14), a movable bin (15) is opened on the side of the sealing door (2) close to the storage bin (14), the inside of the movable bin (15) is slidably connected to a rubber ring, the top of the inner wall of the movable bin (15) is fixedly connected to a connecting rod (10), a torsion spring (9) is provided at one end of the rubber ring away from the shaft (4), one end of the torsion spring (9) is fixedly connected to the connecting rod (10), and the other end of the torsion spring (9) is fixedly connected to the bottom end of the inner wall of the rubber ring; One side of the inner wall of the rubber ring is provided with an opening 1 (11), and the other side of the inner wall of the rubber ring is provided with an opening 2 (12). The inner wall of the movable chamber (15) is provided with a hole groove 1 and a hole groove 2 respectively adapted to the opening 1 (11) and the opening 2 (12). When the rubber ring is in an upward state, the opening 1 (11) and the opening 2 (12) are connected to the hole groove 1 and the hole groove 2 respectively.

2. The anti-violent opening intelligent business library according to claim 1, characterized in that: The security mechanism further comprises a rubber ring (8), the rubber ring (8) being sleeved on the surface of the trigger rod (6), the elastic force applied by the rubber ring (8) to the trigger rod (6) and the reaction force applied by the trigger rod (6) to the rubber ring (8) being balanced with each other, the trigger rod (6) being slidably connected to the interior of the sealed door (2), and the sensing block (7) being fixedly connected to the interior of the sealed door (2).

3. The anti-violent opening intelligent business library according to claim 1, characterized in that: A spiral groove is provided on the surface of the shaft (4), and the spiral groove is connected to the second hole groove.

4. An anti-unlocking system for a violence-proof opening intelligent business library, the system being a system equipped with a violence-proof opening intelligent business library according to any one of claims 1 to 3, characterized in that: include: The business storage end serves as a storage carrier for various physical objects to be kept and carries various functional modules; The encryption module is used to restrict the opening and closing of encryption on the business storage end; A vibration sensing module is used to sense the vibration force data experienced by the business storage terminal during normal deployment; Image acquisition module, used to obtain image data of the control area of ​​the business storage end and perform preprocessing; An analysis module is used to receive the vibration force data collected by the vibration sensing module and the pre-processed image data acquired by the image acquisition module, and perform comprehensive analysis; The alarm module is used to receive comprehensive analysis information from the analysis module and determine whether to provide online alarm behavior feedback; The security module is used to sense external force impact, passively trigger the anti-touch power-on behavior, and determine whether to actively trigger it based on the comprehensive analysis information of the analysis module.

5. The anti-unlocking system of the anti-violent opening intelligent business library according to claim 4, characterized in that: During the comprehensive analysis process performed by the analysis module, if the vibration force data is lower than the preset standard threshold, it is marked as normal vibration; if the vibration force data is higher than the preset standard threshold, it is marked as abnormal vibration. The preprocessed image data is obtained and scene analysis is performed to determine whether the current abnormal vibration conforms to the preset logic based on the current scene.

6. The anti-unlocking system of the anti-violent opening intelligent business library according to claim 5, characterized in that: The goal of the scenario analysis is to perform facial recognition of people and devices in the area, and obtain information on unauthenticated people and abnormal devices.

7. The anti-unlocking system of the anti-violent opening intelligent business library according to claim 5, characterized in that: The preset logic includes: when there is unauthenticated personnel and abnormal equipment information in the scene analysis, an alarm behavior is triggered.

8. The anti-unlocking system of the anti-violent opening intelligent business library according to claim 5, characterized in that: The business storage end is electrically connected to the vibration sensing module, image acquisition module and encryption module through a medium, the analysis module is interactively connected to the alarm module, security module, vibration sensing module and image acquisition module through a wireless network, and the encryption module is electrically connected to the security module through a medium.

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