EP0772166B1 - Système pour surveiller une multiplicité de portes - Google Patents

Système pour surveiller une multiplicité de portes Download PDF

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Publication number
EP0772166B1
EP0772166B1 EP95202914A EP95202914A EP0772166B1 EP 0772166 B1 EP0772166 B1 EP 0772166B1 EP 95202914 A EP95202914 A EP 95202914A EP 95202914 A EP95202914 A EP 95202914A EP 0772166 B1 EP0772166 B1 EP 0772166B1
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EP
European Patent Office
Prior art keywords
nbio
poll
scu
yes
doors
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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.)
Expired - Lifetime
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EP95202914A
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German (de)
English (en)
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EP0772166B2 (fr
EP0772166A1 (fr
Inventor
Gad Talmom
Zvi Dershowitz
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.)
BANKOM SECURITY SYSTEMS LTD.
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Elisra Electronic Systems Ltd
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Priority to DE69507485T priority Critical patent/DE69507485T3/de
Priority to ES95202914T priority patent/ES2130519T5/es
Priority to EP95202914A priority patent/EP0772166B2/fr
Priority to AT95202914T priority patent/ATE176070T1/de
Application filed by Elisra Electronic Systems Ltd filed Critical Elisra Electronic Systems Ltd
Publication of EP0772166A1 publication Critical patent/EP0772166A1/fr
Priority to HK98110605A priority patent/HK1010001A1/xx
Publication of EP0772166B1 publication Critical patent/EP0772166B1/fr
Publication of EP0772166B2 publication Critical patent/EP0772166B2/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
    • E05G1/00—Safes or strong-rooms for valuables
    • E05G1/06—Safes or strong-rooms for valuables having provision for multiple compartments
    • E05G1/08—Safes or strong-rooms for valuables having provision for multiple compartments secured individually
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/10—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for means for safe-keeping of property, left temporarily, e.g. by fastening the property
    • G07F17/12—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for means for safe-keeping of property, left temporarily, e.g. by fastening the property comprising lockable containers, e.g. for accepting clothes to be cleaned

Definitions

  • the present invention relates to monitoring apparatus generally and more particularly to electro-optical monitoring apparatus.
  • FR-A-2,526,474 discloses a system comprising the features of the preamble of claim 1.
  • the present invention seeks to provide an improved system for monitoring which is particularly useful for monitoring the opening and closing of a plurality of doors arranged in a generally planar array.
  • each transceiver includes, for at least some of the multiplicity of doors, a plurality of optical transmitters and receivers operative in a plurality of different directions.
  • Each transceiver is preferably autonomously powered.
  • each transceiver includes at least one light emitting diode and light sensor.
  • each transceiver includes a microprocessor.
  • each transceiver is operative to provide an indication of an open door or inoperative transceiver downstream thereof in a communications chain.
  • the communications apparatus includes a personal computer and communicates with the transceivers via at least two communications interfaces.
  • the plurality of doors are doors of a bank of safe deposit boxes.
  • system also includes apparatus for logging door openings and inoperative transceivers on a time based log.
  • Appendix A is a software listing in Intel Intellec - 8 HEX dump format of software resident in the DCU, ECU and SCU circuitry;
  • Appendix B is a listing of a sequence of events which characterizes operation of an embodiment of the invention including four DCUs in four different operational cases.
  • Fig. 1 is a simplified pictorial illustration of a system for monitoring a plurality of doors, constructed and operative in accordance with a preferred embodiment of the present invention.
  • the system is here shown in the context of monitoring a bank of safe deposit boxes, which is a preferred application. It is to be appreciated, however, that the invention is not limited to this or any other particular application.
  • the bank of safe deposit boxes is arranged in a plurality of vertical columns 22, labeled A - G, and a plurality of horizontal rows 24, labeled 1 - 8. It is to be appreciated that any suitable number of boxes may be monitored in accordance with a preferred embodiment of the present invention.
  • the system includes a multiplicity of door monitoring units 26, hereinafter termed “DCU”s or transceivers, each of which is mounted on the door of a separate box.
  • DCU door monitoring units
  • ECU edge monitoring units
  • a plurality of ECUs 28 are arranged along the bottom of the bank of boxes 20, one ECU being arranged in registration with one column of DCUs 26, such that, for example, the ECU labeled A communicates with the DCUs in column A and so on.
  • the ECUs could be arranged along a vertical edge of the bank 20.
  • the ECUs are arranged for communication and are referred to collectively as a common block, hereinafter termed "ECB”.
  • a system control unit 32 hereinafter termed “SCU” controls the ECUs 30 and may in turn be controlled by a system manager 34, which may be embodied in software and be operated by an operator using a conventional personal computer.
  • each ECU 28 typically comprises an optical transceiver 40, preferably an LED 42 and a light sensor 44, such as a Schmitt photodetector.
  • the optical transceiver pair 40 communicates with a controller 46, which in turn communicates along the ECB block 30 and with the SCU 32.
  • Each DCU preferably includes four optical transceivers 40, disposed along each edge thereof, communicating with a controller 50.
  • the optical transceiver pairs 40 of each DCU 26 are arranged in opposite registration with adjacent corresponding optical transceiver pairs 40 on adjacent DCUs 26 and, where appropriate, with an optical transceiver pair 40 of an adjacent ECU 28, such that serial communication of all adjacent DCUs with each other and with adjacent ECUs 28 is provided, as will be described hereinafter in greater detail.
  • the four optical transceiver pairs 40 are designated as follows: Two vertically directed pairs, identified by reference numerals 41 and 43 respectively are termed UPPER LINK and LOWER LINK. Two horizontally directed pairs, identified by reference numerals 45 and 47 respectively are termed RIGHT LINK and LEFT LINK.
  • transceiver pairs on the ECUs and SCUs are also labeled in accordance with the above convention.
  • the ECUs, SCUs and DCUs may include the same hardware platform.
  • the RIGHT LINK and LEFT LINK of adjacent transceivers may communicate either by wire, as illustrated in Fig. 2, or optically.
  • Controller 50 is delineated by dashed lines and includes a CPU 52 and an associated RAM 54 and ROM 56.
  • the CPU 52 communicates via an I/O bus with respective transmit and receive registers 58 and 60.
  • Register 58 communicates via a LED buffer 62 with four LEDS 64, 66, 68 and 70, each directed in a different direction.
  • Register 60 communicates via a sensor buffer 72 with four sensors 74, 76, 78 and 80, each directed in a different direction.
  • a power module 82 provides power to the controller 50 and preferably includes an autonomous power source such as solar cells 84 or an RF energy receiver and rectifier assembly 86.
  • the autonomous power source provides electrical power to a power supply 88, which converts the electrical power to voltages appropriate for use by the various elements of the DCU 26.
  • Controller 46 includes a CPU 102 and an associated RAM 104 and ROM 106.
  • the CPU 102 communicates via an I/O bus with respective transmit and receive registers 108, 134, 110 and 130.
  • Register 108 communicates via a LED buffer 112 with an LED 114.
  • Register 110 communicates via a sensor buffer 116 with a sensor 118.
  • Register 130 receives, via a buffer 132, information from an adjacent ECU, if present.
  • Register 134 transmits via a buffer 136 to an adjacent ECU, if present.
  • serial input 103 and serial output 105 from the CPU 102 provide communication with the SCU 32.
  • FIG. 5 A schematic illustration of a preferred embodiment of DCU, circuitry appears in Fig. 5. The schematic illustration is believed to be self explanatory, accordingly, no additional description thereof is believed to be necessary. Identical circuitry is employed also for the ECU and SCU circuitry. A listing of software resident in the microcontroller of Fig. 5 appears in Appendix A, for DCU, ECU and SCU functionalities.
  • the system manager is operative following initialization to confirm that no door is open and that no door has been authorized to be opened.
  • the system manager is then prepared to deal with any one of three events: a timer event, a user input, receipt of a message from the SCU 32 (Fig. 1). Following occurrence of an event, the system manager returns to an idle state.
  • Fig. 6B The operation of the system manager upon occurrence of a timer event is illustrated in Fig. 6B. If an excessive time has passed since the last message, a report to that effect is logged and an alarm is sounded. Otherwise, a request is transmitted to the SCU 32 to perform a block poll, as will be described hereinbelow.
  • Figs. 6F, 6D, 6E and 6G The subroutines dedicated to the above messages NBIO, LBIO, RBIO and ENDP are illustrated in respective Figs. 6F, 6D, 6E and 6G.
  • Each of the subroutines shown in Figs. 6F, 6D and 6E employ a subroutine which is explained hereinbelow with reference to Fig. 6I.
  • the subject matter of Figs. 6F, 6D, 6E and 6G is not believed to require further explanation.
  • Fig. 6H The operation of the system manager upon receipt of an input from a user is illustrated in Fig. 6H.
  • a user indicates a single door which he is authorized to open and normally provides the requisite identification to a security operative.
  • the system manager notes in a register that the indicated door is authorized to be opened.
  • the system manager notes in a register that the indicated door is no longer authorized to open.
  • the system as described herein is configured to only permit one authorized box opening at any given time. Alternatively, the system could be configured to permit more than one authorized box opening at a given time.
  • Fig. 6I The operation of the system manager upon reception of a message from a SCU, indicating the open status of a door is illustrated in Fig. 6I.
  • the system checks to determine whether the door which is indicated to be open is authorized to be open. If not, an alarm is sounded. In any event, the open status of the door is logged by column and row numbers.
  • Figs. 7A and 7B illustrate the operation of SCU circuitry 32.
  • the SCU circuitry awaits a poll command from the system manager 34. Upon receipt of the poll command it conducts polling the status of block 20 (Fig. 1).
  • the task of the SCU is to transmit a poll instruction message to a first ECU in response to a poll system instruction from the system manager 34 (Fig. 1) and to then receive the various return messages therefrom. These messages are then retransmitted by the SCU to the system manager 34.
  • the polling of block 20 is achieved by transmitting a poll message to a first ECU and then awaiting a message from the ECU. If the message is properly received, it is echoed to the system manager 34. If the message is not properly received, the SCU exits the subroutine of Fig. 7B. The subroutine is operative until an ENDP message is received and echoed to the system manager 34.
  • FIG. 8A, 8B, 8C, 8D, 8E and 8F illustrating the operation of the system manager of Figs. 1-5.
  • the ECU waits for a wake-up signal and upon receipt thereof handles a start-bit from a LINK HX.
  • the ECU circuitry upon receipt of the message along LINK HX, and if the message is successfully received, the ECU circuitry deals with the following types of messages received from LINK HX:
  • the ECU upon receipt of an NBIO, RBIO or LBIO message, the ECU retransmits the same message with the received column and row indices (COL, ROW) changed to (COL+1,ROW) to LINK 1 - HX, i.e. the opposite link on the same transceiver.
  • the ECU upon receipt of an ENDP message from LINK HX, the ECU performs a DCU column poll and transmits an ENDP message with the received (COL, ROW) indication changed to (COL+1,ROW) to link 1 - HX, i.e. the opposite link.
  • the ECU upon receipt of a POLL message from LINK HX, the ECU also transmits a poll message to LINK 1 - HX. If the transmission is not successful it performs a DCU column poll and transmits the result to link 1 - HX. It also transmits a ENDP message with a column indication 0 to link 1 - HX.
  • the ECU transmits a POLL message to the most adjacent DCU (transceiver). If the transmission is not successful, the ECU transmits an NBIO message with indices (0,0) to LINK HX for ultimate transmittal to the SCU 32 and the system manager 34.
  • the ECU awaits a message from the adjacent DCU. If such a message is not received successfully, the ECU exits the subroutine. If a message is successfully received from the adjacent DCU, it is dealt with depending on the type of message, i.e. LBIO, RBIO or NBIO.
  • the ECU transmits a message of the same type to a link HX for ultimate transmittal to the SCU 32 and the system manager 34.
  • the index of the message is a column index 0 and a row index equal to the received index incremented by +1.
  • the ECU In the event of receipt of RBIO and LBIO messages, the ECU remains in the subroutine awaiting further messages. If an NBIO message is received, the ECU exits the subroutine.
  • Figs. 9A, 9B, 9C, 9D, 9E, 9F, 9G, 9H, 9I and 9J are flow charts illustrating the operation of the DCU circuitry of Figs. 1 - 5.
  • the DCU upon supply of power to the DCU circuitry and initialization thereof, the DCU remains in a dormant state until it is awakened up by a received signal.
  • the received signal may come from a source which is vertically separated from the DCU or a source which is horizontally separated from the DCU. Once the received signal has been dealt with, the DCU returns to its dormant state.
  • the DCU retransmits the communication back to the source. If, however, as seen in Fig. 9C, the signal is received from a source that is vertically separated from the DCU, the DCU checks if the message has been correctly received. If so, each message is handled separately and when it has been handled, the DCU returns to its dormant state.
  • Fig. 9D illustrates handling of a POLL message from a LINK VX and indicates that the received POLL message is retransmitted to an opposite link, LINK 1 - VX. If the transmission is not successful, the DCU transmits the status of its right and left neighbors back to link VX and also transmits an NBIO message with index 0 to link VX.
  • Fig. 9E Transmission of the status of the right and left neighbors is illustrated in Fig. 9E. An inquiry is made as to whether the right neighbor door is open. If so, an RBIO message is transmitted to link VX with index 0. An inquiry is made if the left neighbor door is open. If so, an LBIO message is transmitted to link VX with index 0.
  • Reading status of a neighbor is illustrated in Fig. 9F and includes the steps of communicating with a neighboring DCU. If the communication is successful, an indication is provided that the neighboring door is closed. If the communication is not successful, an indication is provided that the neighboring door is open.
  • Handling of an NBIO message is illustrated in Fig. 9G and includes transmitting the status of the right and left neighbors as described hereinabove and afterwards transmitting an NBIO message with an ROW index incremented by +1 to the opposite link 1 - VX.
  • Handling of an RBIO message is illustrated in Fig. 9H and includes transmitting an RBIO message with a ROW index incremented by +1 to the opposite link 1 - VX.
  • Handling of an LBIO message is illustrated in Fig. 9I and includes transmitting an LBIO message with an ROW index incremented by +1 to the opposite link 1 - VX.
  • ECU4 ECU3 ENDP 0 31. 32. ECU3 DCU3.1 POLL 33. DCU3.1 DCU3.2 POLL 34. DCU3.2 DCU3.3 POLL 35. DCU3.3 DCU3.4 POLL 36. DCU3.4 Next DCU POLL (Transmission fails) 37. DCU3.4 DCU4.4 ARE YOU THERE? 38. DCU4.4 DCU3.4 YES 39. DCU3.4 DCU2.4 ARE YOU THERE? 40. DCU2.4 DCU3.4 YES 41. DCU3.4 DCU3.3 NBIO 0 42. DCU3.3 DCU4.3 ARE YOU THERE? 43. DCU4.3 DCU3.3 YES 44. DCU3.3 DCU2.3 ARE YOU THERE? 45. DCU2.3 DCU3.3 YES 46.
  • DCU2.3 DCU3.3 ARE YOU THERE? 73.
  • DCU3.3 DCU2.3 YES 74.
  • DCU2.3 DCU1.3 ARE YOU THERE? 75.
  • DCU1.3 DCU2.3 YES 76.
  • DCU2.2 DCU3.2 ARE YOU THERE? 78.
  • DCU3.2 DCU2.2 YES 79.
  • DCU2.2 DCU1.2 ARE YOU THERE? 80.
  • DCU1.2 DCU2.2 YES 81.
  • DCU2.2 DCU2.1 NBIO 2 82.
  • DCU2.1 DCU3.1 ARE YOU THERE? 83.
  • DCU3.1 DCU2.1 YES 84.
  • DCU2.1 DCU1.1 ARE YOU THERE? 85.
  • DCU4.1 ECU4 NBIO 3 25.
  • ECU4 ECU3 ENDP 0 31. ECU3 DCU3.1 POLL 32. DCU3.1 DCU3.2 POLL 33. DCU3.2 DCU3.3 POLL 34. DCU3.3 DCU3.4 POLL 35. DCU3.4 Next DCU POLL (Transmission fails) 36. DCU3.4 DCU4.4 ARE YOU THERE? 37. DCU4.4 DCU3.4 YES 38. DCU3.4 DCU2.4 ARE YOU THERE? 39. DCU2.4 DCU3.4 YES 40. DCU3.4 DCU3.3 NBIO 0 41. DCU3.3 DCU4.3 ARE YOU THERE? 42. DCU4.3 DCU3.3 YES 43. DCU3.3 DCU2.3 ARE YOU THERE?
  • ECU3 ECU2 ENDP 1 67.
  • ECU2 DCU2.1 POLL 68.
  • DCU2.1 DCU2.2 POLL 69.
  • DCU2.2 DCU2.3 POLL (Transmission fails) 70.
  • DCU2.2 DCU3.2 ARE YOU THERE? 71.
  • DCU3.2 DCU2.2 YES 72.
  • DCU2.2 DCU1.2 ARE YOU THERE? 73.
  • DCU2.1 DCU1.1 ARE YOU THERE? 78.
  • DCU2.1 ECU2 NBIO 1 80.
  • ECU2 ECU1 ENDP 2 84.
  • DCU4.1 ECU4 NBIO 3 25.
  • ECU4 ECU3 ENDP 0 31. ECU3 DCU3.1 POLL 32. DCU3.1 DCU3.2 POLL 33. DCU3.2 DCU3.3 POLL 34. DCU3.3 DCU3.4 POLL 35. DCU3.4 Next DCU POLL (Transmission fails) 36. DCU3.4 DCU4.4 ARE YOU THERE? 37. DCU4.4 DCU3.4 YES 38. DCU3.4 DCU2.4 ARE YOU THERE? 39. DCU2.4 DCU3.4 YES 40. DCU3.4 DCU3.3 NBIO 0 41. DCU3.3 DCU4 3 ARE YOU THERE? 42. DCU4.3 DCU3.3 YES 43.
  • DCU3.3 DCU2.3 ARE YOU THERE? (Transmission fails) 44.
  • DCU3.3 DCU3.2 RBIO 0 45.
  • DCU3.2 DCU3.1 RBIO 1 46.
  • DCU3.1 ECU3 RBIO 2 47.
  • ECU2 ECU1 RBIO 3,1 49.
  • DCU3.2 DCU4.2 ARE YOU THERE? 53.
  • DCU3.2 DCU3.1 NBIO 2 57.
  • DCU3.1 DCU4.1 ARE YOU THERE? 58.
  • DCU3.1 ECU3 NBIO 3 62.
  • DCU2.1 DCU1.1 ARE YOU THERE? 78.
  • DCU2.1 ECU2 NBIO 1 80.
  • ECU2 ECU1 ENDP 2 84.
  • DCU1.4 Next DCU POLL (Transmission fails) 89.
  • DCU1.3 DCU2.3 ARE YOU THERE? (Transmission fails) 93.
  • DCU3.3 DCU2.3 ARE YOU THERE? (Transmission fails) 51.
  • DCU3.2 DCU4.2 ARE YOU THERE? 60.
  • DCU4.2 DCU3.2 YES 61.
  • DCU3.2 DCU2.2 ARE YOU THERE? 62.
  • DCU2.2 DCU3.2 YES 63.
  • DCU3.2 DCU3.1 NBIO 2 64.
  • DCU3.1 DCU4.1 ARE YOU THERE? 65.
  • DCU4.1 DCU3.1 YES 66.
  • DCU3.1 DCU2.1 ARE YOU THERE? 67.
  • DCU3.1 ECU3 NBIO 3 69.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Burglar Alarm Systems (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Special Wing (AREA)

Claims (10)

  1. Système pour surveiller une multiplicité de portes comprenant
    au moins un émetteur-récepteur (40) optique monté sur chacune des portes de la multiplicité de portes ; et
    un appareil de communication (28) pour communiquer avec ledit au moins un émetteur-récepteur optique monté sur chacune des portes de la multiplicité de portes afin de vérifier leur position, ledit appareil de communication étant adapté pour être mis en fonctionnement pour communiquer avec le au moins un émetteur-récepteur optique sur chacune desdites portes de la multiplicité de portes à travers plusieurs voies de passage de communication série de substitution, caractérisé en ce qu au moins l'une desdites plusieurs voies de passage s'étend à travers d'émetteurs-récepteurs optiques montés sur une pluralité de portes différentes
  2. Système selon la revendication 1 et dans lequel ledit au moins un émetteur-récepteur comprend, pour au moins quelques unes des portes de la multiplicité de portes. une pluralité d'émetteurs et récepteurs optiques adaptés pour être mis en fonctionnement dans une pluralité de directions différentes.
  3. Système selon la revendication 1 et dans lequel ledit au moins un émetteur-récepteur sur chacune des portes de la pluralité de portes est alimenté de manière autonome.
  4. Système selon la revendication 1 et dans lequel ledit au moins un émetteur-récepteur comprend au moins une diode émettrice de lumière et un détecteur de lumière.
  5. Système selon la revendication 1 et dans lequel ledit au moins un émetteur-récepteur comprend un microprocesseur.
  6. Système selon la revendication 1 et dans lequel ledit au moins un émetteur-récepteur est adapté pour être mis en fonctionnement pour fournir une indication d'une porte ouverte ou d'un émetteur-récepteur hors fonctionnement en aval dans une chaíne de communication.
  7. Système selon la revendication 1 et dans lequel ledit appareil de communication comprend un ordinateur personnel.
  8. Système selon la revendication 1 et dans lequel ledit appareil de communication communique avec lesdits émetteurs-récepteurs à travers au moins deux interfaces de communication.
  9. Système selon la revendication 1 et dans lequel lesdites portes de la pluralité de portes sont des portes d'un groupe de boítes ce dépôt de sécurité.
  10. Système selon la revendication 1 et comprenant également un appareil pour enregistrer des ouvertures de portes et des émetteurs-récepteurs hors fonctionnement en fonction d'une table basée sur le temps.
EP95202914A 1995-10-27 1995-10-27 Système pour surveiller une multiplicité de portes Expired - Lifetime EP0772166B2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE69507485T DE69507485T3 (de) 1995-10-27 1995-10-27 Überwachungssystem für eine Vielzahl von Türen
ES95202914T ES2130519T5 (es) 1995-10-27 1995-10-27 Sistema para la vigilancia de una multiplicidad de puertas.
EP95202914A EP0772166B2 (fr) 1995-10-27 1995-10-27 Système pour surveiller une multiplicité de portes
AT95202914T ATE176070T1 (de) 1995-10-27 1995-10-27 Überwachungssystem für eine vielzahl von türen
HK98110605A HK1010001A1 (en) 1995-10-27 1998-09-11 A sytem for monitoring a multiplicity of doors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95202914A EP0772166B2 (fr) 1995-10-27 1995-10-27 Système pour surveiller une multiplicité de portes

Publications (3)

Publication Number Publication Date
EP0772166A1 EP0772166A1 (fr) 1997-05-07
EP0772166B1 true EP0772166B1 (fr) 1999-01-20
EP0772166B2 EP0772166B2 (fr) 2003-02-12

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EP95202914A Expired - Lifetime EP0772166B2 (fr) 1995-10-27 1995-10-27 Système pour surveiller une multiplicité de portes

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EP (1) EP0772166B2 (fr)
AT (1) ATE176070T1 (fr)
DE (1) DE69507485T3 (fr)
ES (1) ES2130519T5 (fr)
HK (1) HK1010001A1 (fr)

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US5138299A (en) 1991-03-07 1992-08-11 Honeywell Inc. Showcase alarm system
US5198799A (en) * 1991-09-26 1993-03-30 Allied-Signal Inc. Opto-electronic security fence

Also Published As

Publication number Publication date
ES2130519T5 (es) 2003-10-16
ATE176070T1 (de) 1999-02-15
HK1010001A1 (en) 1999-06-11
DE69507485D1 (de) 1999-03-04
DE69507485T2 (de) 1999-09-02
ES2130519T3 (es) 1999-07-01
EP0772166B2 (fr) 2003-02-12
DE69507485T3 (de) 2003-12-18
EP0772166A1 (fr) 1997-05-07

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