公开(公告)号：US20040257218A1

公开(公告)日：2004-12-23

申请号：US10856828

申请日：2004-06-01

Applicant: COMSEC CORP. LTD. ,  SANKI ENG. CO. LTD. ,  HITACHI CABLE, LTD.

Inventor： Norihiko Shibata ,  Fumiaki Tsuchiya ,  Toshihiro Nozawa ,  Shinya Ishi

IPC: G08B019/00

CPC classification number: G08B13/124 ,  G08B13/186 ,  G08B13/19656 ,  G08B13/19697

Abstract: The object of the invention is to provide a break-in detection system having excellent reliability and maintenance-free characteristics. The detection sensor 1 of FBG type detects an intruder trying to climb over the fence around premises. The detection sensor 2 of OTDR type detects an intruder trying to demolish the fence. A fiber optic cable used as a detection sensor has a sensor core wire and a LAN transmission core wire arranged in parallel to each other to form a LAN transmission channel. Said LAN transmission core wire is used to transmit videotaped image signals from ITV cameras 8 and image control signals two ways between the monitoring room 3 and the ITV control device 6. Said LAN transmission channel is available for connection by IP telephone sets 11, a LAN terminal 12, a wireless LAN terminal 14 and IP-BOX 15 for internet communication.

Abstract translation: 本发明的目的是提供一种具有优异的可靠性和免维护特性的插入式检测系统。 FBG型的检测传感器1检测到试图爬过围墙的入侵者。 OTDR型的检测传感器2检测到试图拆除围栏的入侵者。 用作检测传感器的光纤电缆具有彼此并联布置的传感器芯线和LAN传输芯线，以形成LAN传输通道。 所述LAN传输芯线用于在监控室3和ITV控制装置6之间以两路方式从ITV摄像机8和图像控制信号传输录像图像信号。所述LAN传输通道可用于通过IP电话机11，LAN 终端12，无线LAN终端14和IP-BOX 15，用于互联网通信。

公开(公告)号：US5434557A

公开(公告)日：1995-07-18

申请号：US932095

申请日：1992-08-19

Applicant: Uri Alizi

Inventor： Uri Alizi

IPC: G08B13/12 ,  G08B13/10

CPC classification number: G08B13/186 ,  G08B13/124

Abstract: In an intrusion detection system, at least one optical cable is provided, through which light enters at one of its ends and exits at the other end, at which other end a device for detecting changes in the light intensity passing through the cable is also provided. The system is usually part of a fence, but it can be used in structures such as roofs, windows, etc. When an intruder exerts force on the optical cable, its movement actuates a mechanical device so that a member thereof exerts pressure at a certain place on the cable, deforming the optical cable and causing light attenuation which is detected and actuates an alarm. When used as part of a fence, such mechanical sensing devices are provided at certain intervals from each other. Optical cables can be provided at different heights of such a fence, with light intensity attenuation means as described above.

Abstract translation: 在入侵检测系统中，提供至少一根光缆，光线通过该光缆在其一端进入并在另一端离开，另一端还提供用于检测通过电缆的光强度变化的装置 。 该系统通常是围栏的一部分，但它可以用于诸如屋顶，窗户等的结构中。当入侵者对光缆施加力时，其移动致动机械装置，使得其成员以某种方式施加压力 放置在电缆上，使光缆变形并引起被检测到的光衰减并启动报警。 当用作围栏的一部分时，这些机械感测装置以相互间隔的间隔设置。 可以在这种栅栏的不同高度处提供光缆，其具有如上所述的光强度衰减装置。

公开(公告)号：US5134386A

公开(公告)日：1992-07-28

申请号：US648970

申请日：1991-01-31

Applicant: Anthony Swanic

Inventor： Anthony Swanic

IPC: G08B13/10 ,  G08B13/12 ,  G08B13/186

CPC classification number: G08B13/124 ,  G08B13/10 ,  G08B13/186

Abstract: A microbend-sensitive optical fiber is embedded in a thin pliable padding and laid under an area to be protected. An amplitude-modulated optical light beam is launched into one end of the fiber. The light beam is recovered from the other end of the optical fiber. The angular phase shift between the launched light beam and the recovered light beam is continuously measured and sampled at desired sample intervals. A change in the measured phase shift between any two sequential sample intervals is indicative of the presence of an intruding entity. The magnitude of the phase shift is a function of the mass of the entity. The pattern of repetitive phase shift differences as a function of time provides an estimate of the dynamic characteristics of the intruding entity.

Abstract translation: 将微弯敏感光纤嵌入薄的柔软的衬垫中并铺设在要保护的区域下。 调幅光束被发射到光纤的一端。 光束从光纤的另一端回收。 在所需的采样间隔连续测量和采样所发射的光束和恢复的光束之间的角度相移。 任何两个连续采样间隔之间测量的相移的变化表示入侵实体的存在。 相移的大小是实体质量的函数。 作为时间的函数的重复相移差的模式提供了入侵实体的动态特性的估计。

公开(公告)号：US4931771A

公开(公告)日：1990-06-05

申请号：US249823

申请日：1988-09-27

Applicant: Walter K. Kahn

Inventor： Walter K. Kahn

IPC: G02B6/44 ,  G08B13/12 ,  G08B13/186

CPC classification number: G08B13/124 ,  G02B6/4469 ,  G08B13/186

Abstract: A Precinct Protection System includes a laser source of light which is applied at the input to a bundle of light transmissive fibers. The fibers are gathered in a cable in loops of varying lengths so that the fibers enter and exit the cable at one and the same end. The cable is placed along a line adjoining or surrounding the precincts to be protected. An intruder traversing the line or protected perimeter will disturb one or more of the fiber optic loops of the cable. The circumstance and locality of the disturbance produced by the intruder are indicated on an analog or digital display.

Abstract translation: 区域保护系统包括激光源，其被施加在一束透光光纤的输入端。 纤维聚集在具有不同长度的环的电缆中，使得纤维在同一端进入和离开电缆。 电缆沿着毗邻或围绕要保护的区域的线放置。 穿过线路或受保护的周边的入侵者将干扰电缆的一个或多个光纤环路。 入侵者产生的干扰的情况和位置在模拟或数字显示器上显示。

公开(公告)号：US4572950A

公开(公告)日：1986-02-25

申请号：US450809

申请日：1982-12-17

Applicant: Alan L. Harmer

Inventor： Alan L. Harmer

IPC: G01L11/00 ,  G01B11/16 ,  G01L1/24 ,  G01M11/08 ,  G08B13/12 ,  G08C23/04

CPC classification number: G01M11/085 ,  G01B11/18 ,  G01L1/245 ,  G08B13/186

Abstract: An optical fiber disposed between a light source and a photodetector is subjected at a number of points, equispaced along its axis, to a transverse pressure causing a significant attenuation of the transmitted luminous radiation. The optimum spacing of the pressure points is a function of the radius of the fiber core and of the refractive indices of its core and its envelope. These pressure points are formed by turns of a substantially incompressible helix which is wound around the fiber and which may be constituted by an internal or external rib of a surrounding flexible sheath of similarly incompressible material. The pressure may be applied by a piezoelectrical transducer and may be modulated by an electrical signal to be picked up by the photodetector.

Abstract translation: 设置在光源和光电检测器之间的光纤经受许多点，沿着其轴线等距离地受到导致透射的发光的显着衰减的横向压力。 压力点的最佳间距是纤芯的半径和其芯的折射率及其包络的函数。 这些压力点由围绕纤维缠绕的基本上不可压缩的螺旋形成，并且可以由类似不可压缩材料的周围柔性护套的内部或外部肋构成。 压力可以由压电换能器施加，并且可以由电信号调制以由光电检测器拾取。

公开(公告)号：US4399430A

公开(公告)日：1983-08-16

申请号：US309418

申请日：1981-10-07

Applicant: Cedric A. Kitchen

Inventor： Cedric A. Kitchen

IPC: G08B13/18 ,  G08B13/12 ,  G08B13/186

CPC classification number: G02B6/4469 ,  G08B13/124 ,  G08B13/186

Abstract: A security system having a mesh-like intruder detection structure for use as or with a security fence 2 or for detecting intruders jumping down from a fence or wall. The structure is made up from a number of elongated members (4, 6, 8, 10, 12, 14) each in the form of or including a fibre-optic waveguide, the elongated members being secured together at a number of spaced jointing points (20) spaced 20 cms or less apart. Portions of the elongated members at the jointing points are held in a position fixed relative to one another by encapsulating the jointing points in a plastics material (40), welding the portions together and/or surrounding them with a metal ferrule (38).

Abstract translation: 一种具有网状入侵者检测结构的安全系统，用于或与安全栅栏2一起使用或用于检测从栅栏或墙壁跳下的入侵者。 该结构由许多细长构件（4,6,8,10,12,14）组成，每个细长构件以纤维光波导的形式或包括光纤波导的形式，细长构件以多个间隔的接合点固定在一起 （20）间隔20厘米或更小。 在连接点处的细长构件的一部分通过将接合点封装在塑料材料（40）中而相对于彼此固定的位置，将部分焊接在一起和/或用金属套圈（38）围绕它们。

公开(公告)号：US4370020A

公开(公告)日：1983-01-25

申请号：US162837

申请日：1980-06-25

Applicant: James W. Davey

Inventor： James W. Davey

IPC: G08B13/12 ,  G08B13/186 ,  G02B5/14 ,  G08B13/18

CPC classification number: G08B13/124 ,  G08B13/186

Abstract: Apparatus which comprises at least one length of flexible optic fibre, storage means for receiving the length of optic fibre, means for transmitting an optical signal along the length of optic fibre, and means for detecting an optical signal in the length of optic fibre. There is also provided a communication or security system which comprises at least one loop of flexible optic fibre, a reel on which the optic fibre is coilable, means for transmitting an optical signal along the loop of optic fibre, and means for detecting an optical signal in the length of optic fibre.

Abstract translation: 包括柔性光纤的至少一个长度的装置，用于接收光纤长度的存储装置，用于沿光纤长度传输光信号的装置，以及用于检测光纤长度的光信号的装置。 还提供了一种通信或安全系统，其包括至少一个柔性光纤环，光纤可卷绕在其上的卷轴，用于沿光纤环路传输光信号的装置，以及用于检测光信号的装置 在光纤的长度上。

公开(公告)号：US4307386A

公开(公告)日：1981-12-22

申请号：US967645

申请日：1978-12-08

Applicant: Richard F. Bridge

Inventor： Richard F. Bridge

IPC: G08B13/12 ,  G08B13/186 ,  G02B5/14 ,  G08B13/18

CPC classification number: G08B13/124 ,  G08B13/186 ,  Y10T156/109

Abstract: In a security system in which at least one fibre-optic wave guide, which is carried in a strand, extends along a boundary, light is directed into one end of the guide and the light leaving the guide is detected by an optical detector. An indication is given when the intensity of the detected light falls below a predetermined threshold, so as to warn when the wave guide is disturbed significantly or cut through.In order to manufacture the strand, a fibre-optic wave guide is positioned against an elongate carrier and secured to the latter by bonding agent and/or adhesive tape.A dummy strip, having identical external appearance to the strand but not including a fibre-optic wave guide, can also run along the boundary in question.

Abstract translation: 在其中至少一根光纤波导沿着边界延伸的安全系统中，光被引导到引导件的一端，并且通过光学检测器检测离开引导件的光。 当检测到的光的强度低于预定阈值时，给出指示，以便当波导被明显地干扰或切断时警告。 为了制造股线，光纤波导被定位成抵靠细长的载体，并通过粘合剂和/或胶带固定到后者上。 具有与股线相同的外观但不包括光纤波导的虚拟条带也可以沿着所讨论的边界运行。

公开(公告)号：US12094210B2

公开(公告)日：2024-09-17

申请号：US17439987

申请日：2020-01-14

Applicant: NEC Corporation

Inventor： Yukihide Yoda ,  Yoshiaki Aono ,  Koji Asahi

IPC: G06V20/52 ,  G06V40/20 ,  G08B13/186 ,  G08B13/22

CPC classification number: G06V20/52 ,  G06V40/25 ,  G08B13/186 ,  G08B13/22

Abstract: A monitoring system according to the present disclosure includes an optical fiber (10) laid in a monitoring area; an authenticating unit (20) configured to authenticate a person or a vehicle passing through a gate (G) for entering the monitoring area; an optical fiber sensing unit (31) configured to acquire, based on an optical signal received from the optical fiber (10), a parameter having a unique pattern corresponding to the pattern of action of the authenticated person or vehicle; and an analyzing unit (32) configured to identify the pattern of action of the authenticated person or vehicle based on the unique pattern of the parameter.

公开(公告)号：US12051309B2

公开(公告)日：2024-07-30

申请号：US17579511

申请日：2022-01-19

Applicant: NEC Laboratories America, Inc.

Inventor： Ming-Fang Huang ,  Ting Wang

IPC: G08B13/186 ,  G01M11/00 ,  G02B6/35 ,  G08B13/08 ,  H04B10/071

CPC classification number: G08B13/186 ,  G01M11/31 ,  G02B6/3572 ,  G08B13/08 ,  H04B10/071

Abstract: Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously extend DFOS techniques to anomaly detection using optical magnetism switches (OMC) that are integrated into the DFOS system.