WO2016038432A1 - Système de sécurité qui indique et/ou prévient en cas d'ouvertures non autorisées - Google Patents

Système de sécurité qui indique et/ou prévient en cas d'ouvertures non autorisées Download PDF

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Publication number
WO2016038432A1
WO2016038432A1 PCT/IB2015/000488 IB2015000488W WO2016038432A1 WO 2016038432 A1 WO2016038432 A1 WO 2016038432A1 IB 2015000488 W IB2015000488 W IB 2015000488W WO 2016038432 A1 WO2016038432 A1 WO 2016038432A1
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WO
WIPO (PCT)
Prior art keywords
security system
security
cord
seal
identification element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2015/000488
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English (en)
Spanish (es)
Inventor
Néstor Misael PEÑA TRASLAVIÑA
Fredy Enrique SEGURA QUIJANO
Luis Ernesto MUÑOZ CAMARGO
Juan Carlos BOHÓRQUEZ REYES
Jairo Arturo ESCOBAR GUTIÉRREZ
Sebastián VELÁSQUEZ SUÁREZ
Miguel Antonio PANESSO PÉREZ
Jorge Mario MONSALVE GUARACAO
María Fernanda DÁVILA RESTREPO
Franco Ángel Marino DE MILLERI BONILLA
Helmer ROJAS LÓPEZ
Beckenbauer MORENO FORERO
Alejandro ECHEVERRY DUQUE
Daniel Felipe ARDILA PALOMINO
Deivis Alexander ROSERO YELA
Luis Carlos DIAZ BAUTISTA
Billy Alejandro REVELO OBANDO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Codensa SA - ESP
Universidad de los Andes Colombia
Original Assignee
Codensa SA - ESP
Universidad de los Andes Colombia
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Codensa SA - ESP, Universidad de los Andes Colombia filed Critical Codensa SA - ESP
Publication of WO2016038432A1 publication Critical patent/WO2016038432A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/24—Arrangements for avoiding or indicating fraudulent use
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/03—Forms or constructions of security seals

Definitions

  • the present invention is a continuation of the patent application filed with WIPO, PCT / IB2014 / 001770, and where the documents refer to security systems that allow indicating and / or preventing unauthorized openings in containers, enclosed places or any other space or material that has security, control and restricted access requirements. These security systems incorporate electronic and optionally acoustic identification means.
  • This invention seeks, in particular, to provide security systems to electric power commercialization companies.
  • Theft of electric power is a frequent problem in many areas and one of the most used methods for such theft is the adulteration of the energy meter.
  • companies frequently use plastic seals with a metallic guage to be placed in the meters and in the boxes containing them (measuring cells); If, when evaluating the state of this seal, marks on the plastic or on the guava can be evidenced, companies can argue that the meter has been tampered with.
  • it is not easy to detect such alterations unless each of the seals installed in a measuring cell is examined in detail. In addition, many times adulterations are minor, so they cannot be easily detected.
  • CONFIRMED COPY There is a high number of security systems and seals that incorporate, in turn, different technologies, which allow the control of the conduction, storage and storage of products, materials, measuring instruments, money, etc. These technologies are very varied and their use is related to the required security levels.
  • EP 1087334 refers to a sealing system, or for use as a seal, in order to allow marking objects intended to be identified in time. It is composed of two capsules, one in copper and the other in brass where the identity of this seal is obtained with the help of a drop of tin placed inside the capsules and then randomly scratched in order to obtain a unique drawing.
  • One of the capsules which is interlocked on the other in order to close the seal during use, contains 2 holes that allow the 2 ends of a metallic or nonmetallic wire, multifilar or not, to pass through which will join the elements that They must be sealed. For example, in the case of the condemnation of a door or of a closet, this thread passes inside the handles. Next, the two ends of the thread are knotted together inside the brass capsule and the seal is closed.
  • US 2010/0283580 refers to an apparatus and a method to determine whether or not a container has been opened.
  • Said apparatus is formed by a circuit that stores and supplies information related to the identification of the apparatus, an antenna connected to the circuit and an information reader apparatus. When the container is opened, the antenna and the device circuit break; Thus, the reader can no longer recognize the stored information.
  • European application EP 03290437 teaches a sealing device with multiple transponders.
  • Said device comprises an interlocking pin and a bushing, where the interlocking pin includes a head and a rod with a throat cooperating with a locking ring arranged in the bushing to insert by inserting the bushing onto the bushing.
  • the bushing further comprises a first transponder housed inside the bushing at a depth greater than the height of the rod and the locking pin has a second transponder disposed on the outer periphery of the rod.
  • Each transponder has a substrate on which an electronic circuit and an antenna are formed.
  • the electronic circuit contains storage means that allow at least one unique identification code to be stored, said second transponder being designed and arranged to cause the breakage of said electronic circuit or said antenna of said second transponder when an attempt to open of said sealing device.
  • WO 2014096928 relates a security device that has RFID technology and a closure system specially designed for Check if the system has been violated.
  • EP 2717242 and EP 2717242 relate similar configurations. The devices in these documents are mainly used in containers and violating them is relatively easy, since the system cable is exposed.
  • the antenna which is one of the components of the identification element.
  • This antenna is made by a metal engraving on the surface of the substrate.
  • the antenna had a fracture line, defined by two horizontally aligned holes. This fracture was responsible for preventing the operation of the system in case of manipulation. Even so, the mechanical fracture dispersion established by the orifices did not guarantee that the fracture would occur along said line, so that difficulties in differentiating normal and manipulated operating states could occur. For this reason, this invention proposes a fracture zone inside the antenna, where it is guaranteed that there is a difference between both states in case of manipulation. To introduce this zone, the new antenna topology introduces two radiating elements instead of one.
  • this scheme has other advantages.
  • the identification element is simpler, since it is composed only of the substrate, the antenna and the read-only memory.
  • This identification element does not require optional metal support. This It involves saving material.
  • the assembly of the seal in the construction phase is also simpler and maintains the integrity of the identification element during said phase.
  • Ease of assembly the seal presented a horizontal assembly, which promotes considerable efforts on the identification element at the time of assembly. Conversely, A vertical assembly completely eliminates these efforts, maintaining the integrity of the identification element.
  • This invention proposes a security system, which can be used in countless applications, and which enables electronic and mechanical verification.
  • the solution developed is based on a passive device that has a radio frequency system and can have SAW (Surface Acoustic Waves) technology; This allows interrogation and code reading.
  • the invention has a mechanical safety mechanism that disables the electronic system when the seal is subjected to unauthorized manipulation.
  • the present invention corresponds to a security system that has the following parts: a) A LOCK (100), BULON, NUT OR PIN, which contains two interconnected holes (110, 120) through which a safety cord (200) can pass ) b) A SECURITY SEAL consisting of i) An identification element (400) consisting of
  • a read-only memory (460) containing a code located in the part of the substrate that does not occupy the radiating elements (410), which may optionally be acoustic.
  • a seal body (300) which is a hermetic unit and which has
  • cover (350) A top piece, referred to herein as cover (350); which has
  • a gutter (354), referred to herein as a safety cord channel (d) a gutter (354), referred to herein as a safety cord channel.
  • a closing module consisting of:
  • a metal cylinder, referred to herein as the safety cord holder (520) which is located inside the holder container (351) intended to house the safety cord
  • An anchor module consisting of a metal plate, here called anchoring element (600), which contains two holes, here called (i) inlet drilling (610), and (ii) return drilling (620) , and is fixed to the body by the lower receptacle of the identification element (340) in the base and the upper receptacle of the identification element (356) in the cover;
  • anchoring element (600) which contains two holes, here called (i) inlet drilling (610), and (ii) return drilling (620) , and is fixed to the body by the lower receptacle of the identification element (340) in the base and the upper receptacle of the identification element (356) in the cover;
  • a SAFETY CORD (200) that only breaks at forces greater than the breaking force of any other system component, where i) one of its ends is held or anchored with a gripping element (630) to the perforation of entry of the anchor module (610), generating the anchoring action of the safety cord (200) to the seal body, (I) the other end exits through the return perforation (620), passes through the cavity of the safety cord f thus being placed on the identification element in the cantilever zone ,, and leaves the body through the exit hole (322) located in the cavity (330) that completely covers the lock (100), and
  • Read-only memory has a unique code, unlike any other unit.
  • the lengths and widths of the meander portions of the radiating elements are adjusted to define the power radiated by the identification element.
  • the set between the radiated power and the unique code of the read-only memory constitutes an identifier that is transmitted to the reading device.
  • the identification element (400) is fixed inside the identification element support (311); the safety cord holder (520) is then inserted into the holder container (351; then, the free end of the safety cord (200) is inserted through the perforation of entry (610) of the anchor module, until this perforation is blocked by the gripping element (630). Next, the free end of the safety cord is taken and passed through the return perforation of the anchor module (620), to be located inside the safety cord channel (354), and taken to the exit hole ( 322).
  • the anchoring element (600) is fixed in the upper receptacle of the anchoring element (356) in the cover and in the lower receptacle of the anchoring element (340) in the base. Subsequently, the base (310) and the cover (350) are sealed by inserting the perimeter assembly guide (313) into the assembly groove (357), and the closing sphere (510), and the closing screw (550) are entered through the guide of the locking screw (352) in that order.
  • the safety cord (200) that comes out of the hermetic security seal is passed through the holes of the lock (110, 120), bolt, nut or pin, and then through the hole of entry (321) in the cavity (330) that completely covers the lock (100), bolt, nut or pin, to enter the fastener of the safety cord (520) and exit the seal through the closing hole (355).
  • the closing screw (550) is operated until the torque-moment is reached that results in the fracture stress on the stress limiting notch (551), which has previously generated the deformation of the safety cord fastener ( 520) inside the housing cavity (353), thanks to the transmission of force achieved by the closing sphere (510), generating the anchor of the safety cord holder (520) and the safety cord inside the accommodation cavity (330). Also as an associated result, the remaining portion of the closing screw (550) inside the guide of the closing screw (352) has been rendered useless, resulting in a redundant measure to prevent the removal of the safety cord from the seal body after assembly. As a result, the security seal completely covers the lock, bolt, nut or pin and is firmly attached to it.
  • the identification element stops transmitting because the substrate has fractured and the operation of the radiating elements and the read-only memory is prevented.
  • Figure 1 shows a preferred embodiment of the invention ready to be used in a lock.
  • Figure 2 relates parts that make up a preferred embodiment of the invention.
  • Figure 3 shows an exploded view of the security system of the present invention.
  • Figure 4 shows the parts of the base of the seal body of the present invention.
  • Figure 5 is a top view of the base of the seal body of the present invention.
  • Figure 6 illustrates the upper part, or cover, of the seal body of the present invention
  • Figure 7 is a bottom view of the seal body cover of the present invention.
  • FIG. 8 illustrates the identification element of the security seal of the present invention
  • Figure 9 shows how to assemble the security seal.
  • Figures 10 to 14 illustrate the way in which the security seal is used in a lock.
  • Figure 15 relates an installation example of the invention.
  • Figure 16 relates another installation example
  • Figures 17 and 18 relate the graphs the characterization of the glass by the ROR test and the Weibull probability distribution resulting from said characterization.
  • Top piece, or cover (350). Bra container (351). Screw guide (352). Housing cavity (353). Safety cord channel (354). Closing hole (355). Upper receptacle of the anchoring element (356). Assembly slot (357) where the perimeter assembly guide (313) is inserted;
  • Closing module consisting of: a closing sphere (510), Safety cord holder (520). Locking screw (550), with a stress limiting notch (551)
  • Anchor module consisting of: anchoring element (600), which contains two holes, (i) inlet drilling (610) and (ii) return drilling (620). Grip Element (630)
  • This element of the security system refers to any mechanism that serves to close a container, keep it secured and where only said mechanism can be opened with a mechanical element.
  • the type of element to be used is not relevant for the present invention.
  • the only requirement of the mechanisms of this part of the security system is that they must contain two holes very close to the site where the element is introduced mechanical opening, so that a safety cord can be inserted through one of said holes and said cord comes out through the other hole.
  • a lock (100) as shown in Figure 4.
  • Said exemplified lock (100) has two holes (110 and 120) very close to the place where it should be introduced the mechanical opening element (key).
  • the identification element seeks to place a strong technological obstacle to hinder access to the elements that allow characterizing the security seal as a whole and, in turn, hinder the possible fraudulent reproduction of the security system by replacing elements with ones that contain characteristics Similar.
  • the critical variables within the design process of the identification element are the following:
  • RFID technology only operates in frequency bands with industrial, scientific and medical (ISM) applications.
  • ISM industrial, scientific and medical
  • One option is RFID-SAW technology, or acoustic element, which is available in the ISM band at 2.45GHz.
  • the probability of failure will be expected to fall to zero at very low efforts, while at high efforts it will be very close to one. In a metallic material this probability would rise suddenly from the failure effort, while for a glass this increase is quite gradual.
  • the form factor (m or "Weibull module") and the scale factor (SO).
  • the form factor will indicate how gradual the increase in the probability of failure is: low values indicate a slow increase and therefore a large dispersion in the failure effort.
  • the value of SO also called "characteristic effort” will indicate the effort where the probability of failure takes an intermediate value (0.63).
  • the objective of fracture tests is to estimate these two parameters in the best possible way.
  • Figure 18 shows the probability distribution of the failure effort. It can be seen that as the applied stress increases, the probability that the glass will break is getting closer and closer to 1.0. As mentioned earlier, the characteristic effort corresponds to the point where the cumulative probability is 0.63 which in this case is close to 70 MPa.
  • an antenna is recorded by the deposition of a silver paste, which contains micro-particles of silver inside a solvent.
  • the substrate together with the paste are subjected to a thermal process, which results in the evaporation of the solvent, and the union of the silver microparticles, leaving a thin metallic layer on one of the surfaces of the substrate.
  • the antenna is made up of two radiating elements, with a meander shape, surface type connection points for interconnection with read-only memory and a short circuit that crosses the area of surface type connections.
  • the technology sought for the antenna is as follows: first, it must have the ability to be deposited in a thin sheet on the selected substrate. This type of technology is known as microwave planar technology.
  • One of the simplest antenna topologies is the dipole antenna, which consists of two arms fed at the junction thereof. The operating frequency of this antenna depends on the length of the dipole arms. That is, the principle is the following: if the antenna is designed to operate at an initial frequency, which corresponds to that of the reading device, in the normal operating state the information of the identification element can be retrieved after interrogation. On the other hand, if manipulation is generated, the length of the antenna changes due to the fracture of the substrate, so that the frequency of operation of the reader no longer coincides with that of the antenna.
  • the antenna after manipulation does not have the capacity to receive the information that comes from the reading device or to respond with the information of the identification element.
  • the meander-shaped structure and impedance jumps reduce the dimensions of the metal engraving without affecting the antenna's operating frequency.
  • Fracture zone the substrate failure is a probabilistic rather than deterministic event (see substrate section). This also applies to the direction in which the fracture spreads. That is, in case of manipulation, it is possible that the length of the dipoles, or of the radiating elements, does not change according to the expected product of an unexpected fracture direction. Therefore, it is possible that the system Continue to operate despite being tampered with. For this reason, a fracture zone was included in this antenna design. If the fracture occurs within this zone, either parallel or oblique, it is guaranteed that the two operating states can be differentiated. This compound zone is composed of an elongation of the initial zone of the dipole arms that make up the radiating elements, which change direction at the final edge of the fracture zone to define the length of the dipoles after manipulation.
  • said short seeks to compensate for the dominant capacitive effect of read-only memory to ensure adequate power transfer. Both the length and the separation of the short can be designed to compensate for other electrical behaviors that prevent optimal power transfer.
  • Slot The main change at the processing level of the substrate was the elimination of perforations. These perforations were necessary for the installation of the safety cord and read-only memory in through technology. The consequence of this change was an increase in fracture forces. For this reason, a prefabricated groove on the opposite side of the antenna engraving reduces the forces required and decreases the dispersion of the fracture direction. Although the fracture zone relieves problems with the fracture direction, a reduction in dispersion is helpful for the application.
  • the identification element contains a read-only memory, which in this case is surface mounted technology, and which can optionally be acoustic. To operate, it has on the antenna with surface connections and short circuit. This combination, recorded on the antenna, together with the information contained in the memory inside, guarantees that each seal has a unique identification code.
  • the seal body has four basic functions. The first is to house the identification element together with its parts, the second is to completely cover the part of the lock where the key type mechanical element is introduced, the third is to be configured so that, in the event of a security system violation, the identification element is completely broken, the fourth guarantee the compatibility of the installation process with the procedures defined by the user.
  • the seal body is composed of 4 modules that interact to provide the functionality described above: (1) base, (2) cover, (3) closure module and (4) anchor module.
  • the base is the central support element of the different components of the seal body, the type of housing provided to the identification element being a characteristic aspect in the design.
  • the cantilever configuration and the type of support provided by the base to the identification element were designed with the objective of protecting it during assembly and installation operations while simultaneously satisfying the failure requirement in the event of an intrusion event.
  • Said configuration is efficient when covering the two mentioned scenarios (the one of assembly / installation and the one of intrusion failure) because in the first one the possibility of failure is eliminated as a consequence the direction of assembly and the characteristics of the efforts produced in that operation (negligible transverse shear stresses), while in the second one a controllable condition of fragile rupture is established under loads that produce bending stresses on the identification element.
  • the effect of this type of support on the effort produced in the identification element for different points of application of the load was computed in order to estimate the operating range in which the functionality of this element is guaranteed in the two mentioned scenarios.
  • the base has a cavity in the lower part designed to cover the lock, bolt, nut or pin and make it inaccessible to intrusions.
  • the base also supports the other elements that make up the system: (1) the cover (which is assembled to produce a hermetic structure with the base), (2) the closing module (composed of the fastener of the safety cord, the closing sphere and the closing screw) and (3) the anchoring module (which constitutes the beginning of the safety cord path).
  • the cover has an assembly groove that defines an area of contact with the base perimeter guide to generate a single hermetic unit. The contact of the surface of the cover with the identification element supported on the base completes the cantilever support geometry. On the lateral surface of the cover starts the threaded guide in which the closing screw is inserted.
  • the housing cavity of the safety cord container Inside the cover and on the same axis to this hole is the housing cavity of the safety cord container, while perpendicular to this is the hole that defines the security cord holder container.
  • the closing module is completely contained in the cover; This configuration was chosen to guarantee rupture of the identification element in case of any attempt to separate the cover from the base.
  • the closure module consists of three elements: the safety cord holder, the closure sphere and the closing screw.
  • the mechanism is designed to produce an irreversible action of entrapment of the safety cord at the time of installation of the safety system in the lock, bolt, nut or pin.
  • the mechanical action is as follows: the safety cord holder (a hollow metal cylinder with an external diameter of 3,175 mm and 1.76 mm of external diameter) that is inserted into the cover, in contact with the base and through which it passes
  • the safety cord is deformed by the application of an axial force perpendicular to its axis axis that is transmitted through a steel sphere of 3.175 mm in diameter and which is exerted by the M4-0.7 specification security screw which Once inserted in cover guide.
  • the anchor module constitutes the starting point of the safety path of the cord inside the seal body. It consists of a metal sheet with two perforations (an entry perforation and a return perforation).
  • the gripping element which in this case can be a knot on the safety cord, limits its displacement when it meets the entrance perforation, while the free end passes through the return perforation to continue its path within the seal body (over the identification element and through the inlet and outlet holes of the base of the seal body).
  • the proposed configuration restricts the movement of the gripping element of the safety cord and allows its handling during assembly and installation operations.
  • the seal body must fail mechanically before the safety cord fails. He material must not be conductive and must be resistant to shear and chemical attack forces, as well as to the environmental conditions that the seal must withstand.
  • the HoneyweII Spectra Fiber 1000 has been used, the characteristics of which are as follows:
  • the reader is a device capable of decoding the code inside the seal. Additionally, it relates this electronic code to a previously established code and allows verifying the level of power with which the signal is received. All this information is acquired wirelessly and can be viewed on the display unit.
  • the security system implemented is built to be installed in three types of containers: the first one is a measuring box, used by CODENSA SA ESP, which usually contains three energy meters and is installed at low voltage.
  • the second container is a medium box, used by CODENSA SA ESP for the installation of macrometer meters, called macromedition cell, which are responsible for weighing everything that comes out of the transformer under which they are installed.
  • the third container corresponds to medium voltage measuring cells, which are cells that are inside the site of the customer and can contain both the meter and transformers.
  • the installation scheme is illustrated from figure 10 to figure 14.
  • Lock (see figure 1): The lock consisted of a locking plate with support, a 22m diameter segeer ring, a 22mm diameter lock cylinder, a 1/16 x 3 ⁇ 4 pin or PIN and a safety pin reusable Figure 1 shows the piece with the general dimensions.
  • Identification element Antenna manufactured on a glass substrate with a thickness of 2mm and dimensions of 14.5 by 25mm. Two radiant elements with lengths of 34.2mm and 31.7mm, and surface connections to the read-only memory that contains a code, which in this case was an element of acoustic operation principle, of 5 by 5mm area.
  • the memory has an S51 package with ten pins, where 3 and 5 correspond to the connection points with the antenna.
  • Safety cord The safety cord used was a 200mm HoneyweII Spectra 1000 portion, with a 4mm knot at one end. The diameter of the cord was 0.8mm, and the knots 1.6mm.
  • Reading device The reading device used consisted of a SAWEco + reader with two SAWcomponents brand output ports, connected to a 7dBi maximum polarization circular antenna that was connected to an embedded platform that made the LAN interface, gave the reading instructions to the device and displayed the results on an LCD display. Additionally, it correlates the codes of the read-only memory with the codes of the stamp database of CODENSA SA ESP.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Burglar Alarm Systems (AREA)
  • Lock And Its Accessories (AREA)

Abstract

La présente invention concerne un système de sécurité qui indique et/ou prévient les ouvertures non autorisées, ce système étant CARACTÉRISÉ EN CE QU'il comprend les parties suivantes: 1) une serrure, un boulon, un écrou ou un axe de fermeture 2) un sceau de sécurité formé par (i) un élément d'identification (ii) un corps de sceau 3) un cordon de sécurité 4) un dispositif de lecture.
PCT/IB2015/000488 2014-09-08 2015-04-14 Système de sécurité qui indique et/ou prévient en cas d'ouvertures non autorisées Ceased WO2016038432A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/IB2014/001770 WO2016038402A1 (fr) 2014-09-08 2014-09-08 Système de sécurité qui indique et/ou prévient en cas d'ouvertures non autorisées
IBPCT/IB2014/001770 2014-09-08

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WO2016038432A1 true WO2016038432A1 (fr) 2016-03-17

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PCT/IB2015/000488 Ceased WO2016038432A1 (fr) 2014-09-08 2015-04-14 Système de sécurité qui indique et/ou prévient en cas d'ouvertures non autorisées

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Publication number Priority date Publication date Assignee Title
US10280657B2 (en) 2017-07-24 2019-05-07 MarkEd Ventures, LLC Security tags for shipping containers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448020A2 (fr) * 1979-02-01 1980-08-29 Brooks Co E J Scelle
US20050231365A1 (en) * 2004-03-30 2005-10-20 Tester Theodore R Electronic security seal
US20080094173A1 (en) * 2006-10-18 2008-04-24 China International Marine Containers (Group) Ltd. Intelligent security apparatus for container and mechatronic customs seal, bracket
CN202584571U (zh) * 2012-04-09 2012-12-05 深圳市科陆电子科技股份有限公司 一种带易碎面的塑封装置
US20130049964A1 (en) * 2011-08-30 2013-02-28 Directorate General of Customs, Ministry of Finance, R.O.C Electronic Seal Equipped with a Breakage-Detecting Circuit and Method for Sealing a Door Based on the Same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29813738U1 (de) * 1997-09-09 1999-01-21 Haberger Karl Vorrichtung zum manipulationssicheren Kennzeichnen von Gegenständen
JP2006250806A (ja) * 2005-03-11 2006-09-21 Toshiba Corp メータ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448020A2 (fr) * 1979-02-01 1980-08-29 Brooks Co E J Scelle
US20050231365A1 (en) * 2004-03-30 2005-10-20 Tester Theodore R Electronic security seal
US20080094173A1 (en) * 2006-10-18 2008-04-24 China International Marine Containers (Group) Ltd. Intelligent security apparatus for container and mechatronic customs seal, bracket
US20130049964A1 (en) * 2011-08-30 2013-02-28 Directorate General of Customs, Ministry of Finance, R.O.C Electronic Seal Equipped with a Breakage-Detecting Circuit and Method for Sealing a Door Based on the Same
CN202584571U (zh) * 2012-04-09 2012-12-05 深圳市科陆电子科技股份有限公司 一种带易碎面的塑封装置

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