KR100722011B1 - Indoor monitoring system using optical fiber sensor - Google Patents

Abstract

The present invention detects the intrusion status of the intruder in the home using the optical signal provided to the home in the FTTH system and provides the intrusion information to the security company or subscriber to easily cope with the intrusion of the intruder The present invention relates to an integrated monitoring system using a sensor.

In the integrated monitoring system using the optical fiber sensor according to the present invention, in the FTTH system in which an optical fiber termination device coupled to a predetermined service providing network is combined with a plurality of indoor devices through an optical distribution network, the indoor device is provided from an optical distribution network. A splitter for separating the applied optical signal at a predetermined ratio and providing the optical subscriber terminal device and the monitoring device, respectively, coupled to the subscriber terminal, a sensor unit having a predetermined length of optical fiber and a reflector coupled to an end of the optical fiber, and the sensor unit A monitoring device comprising a control means for determining whether an intrusion is made based on a change in a signal level of reflected light applied from the light and providing predetermined monitoring information to the monitoring information processing device at the time of intrusion determination; The web camera is driven based on the surveillance information from the device, and the web camera is That is configured to include a monitoring information processing unit configured to store a zero information is characterized.

Description

Integrated monitoring system using optical fiber sensor

1 is a system configuration diagram showing a schematic configuration of an integrated monitoring system using an optical fiber sensor according to a first embodiment of the present invention.

Figure 2 is a block diagram showing the internal configuration of the indoor device 400 shown in FIG.

3 to 6 are block diagrams showing functional separation of the internal configuration of the monitoring device 430 shown in FIG.

7 is a view illustrating an installation form of the sensor unit 431 shown in FIG.

FIG. 8 is a block diagram showing functional separation of the internal structure of the monitoring information processing device 440 shown in FIG.

9 is a system configuration diagram showing a schematic configuration of an integrated monitoring system using an optical fiber sensor according to a second embodiment of the present invention.

10 is a block diagram showing the internal configuration of the indoor device 500 shown in FIG.

FIG. 11 is a block diagram showing functional separation of the internal structure of the monitoring device 540 shown in FIG. 10; FIG.

12 is a block diagram showing the internal configuration of the service providing server 130 shown in FIG.

******* Brief description of the main parts of the drawing *******

100: service providing network, 200: optical fiber termination device,

300: optical distribution network, 400: home equipment,

410: splitter, 420: optical subscriber network device,

430: monitoring device, 440: monitoring information processing device,

450: Web camera.

The present invention detects the intrusion status of the intruder in the home using the optical signal provided to the home in the FTTH system and provides the intrusion information to the security company or subscriber to easily cope with the intrusion of the intruder The present invention relates to an integrated monitoring system using a sensor.

An intrusion monitoring device is installed in a general home or building for the purpose of protecting a facility from intruders.

The intrusion detection market is generally configured to emit an infrared sensor to a specific position and to detect an external intruder or an intruder contacting it.

However, the infrared sensor has a disadvantage in that the detection range is very limited because the infrared ray's emission distance is limited. In addition, the infrared sensor has a problem that the installation cost is burdened because the equipment is complicated.

In recent years, an intrusion monitoring apparatus using an optical fiber has been proposed.

The intrusion detection device using the optical fiber basically comprises a light source for supplying a predetermined optical signal, an optical fiber for transmitting an optical signal applied from the light source, and a detection unit for analyzing the optical signal applied from the optical fiber to determine whether the intrusion is detected. do. Here, the optical fiber is generally composed of an optical fiber grating. The optical fiber grating is configured to form a grating on an optical fiber core so that the optical wavelength reflected by the grating spacing is changed. That is, the presence or absence of external invasion is detected by analyzing the wavelength change of the reflected light as the lattice spacing of the optical fiber is changed by the external impact.

However, the optical fiber lattice has a disadvantage in that the manufacturing process is very difficult, the inconvenience of mounting the grating is formed in the correct position and the price for implementing the system is also expensive. In addition, since the cost of the light source element and the cost of the data processing system are high, there is a problem in that the installation cost of the intrusion monitoring apparatus is high.

On the other hand, FTTH (Fiber To The Home) system has recently been proposed to provide various information including broadcasting and communication by connecting an optical cable to a home.

Thus, the present invention was created in view of the above circumstances, the integrated monitoring using the optical fiber sensor to detect whether the intruder in the indoor using the optical signal provided to the home in the FTTH system that the optical signal is provided to the home Its technical purpose is to provide a system.

In addition, there is another technical object to provide an integrated surveillance system using a fiber optic sensor that provides intrusion information of intruders to the security company or subscriber to facilitate the intrusion of the intruder to the home intrusion.

The integrated surveillance system using the optical fiber sensor according to the first embodiment of the present invention for achieving the above object is an FTTH system is configured such that the optical fiber termination device coupled to a predetermined service providing network is coupled to a plurality of indoor devices through the optical distribution network. The indoor device comprises: a splitter for separating the optical signal applied from the optical distribution network at a predetermined ratio and providing the optical subscriber terminal device and the monitoring device, respectively, coupled to the subscriber terminal, the optical fiber of a predetermined length and the end of the optical fiber; And a sensor unit to which the reflector is coupled, and control means for determining whether the intrusion is based on the change in the signal level of the reflected light applied from the sensor unit and providing the surveillance information processing apparatus with the predetermined monitoring information at the time of intrusion determination. Combined with a monitoring device and a web camera, a web camera is constructed based on the monitoring information applied from the monitoring device. In addition to the ship, it characterized in that it comprises a surveillance information processing device configured to store the shooting information taken through the web camera.

In addition, the integrated monitoring system using the optical fiber sensor according to the second embodiment of the present invention for achieving the above object is FTTH configured to be coupled to a plurality of indoor devices through the optical distribution network coupled to the optical fiber termination device In the system, the indoor device is a splitter for providing an optical subscriber terminal device and a monitoring device, respectively, coupled to the subscriber terminal by separating the optical signal applied from the optical distribution network at a predetermined ratio, and the optical fiber of a certain length and the end of the optical fiber And a sensor unit coupled to the reflector, and control means for determining whether the intrusion is based on a change in the signal level of the reflected light applied from the sensor unit, and providing predetermined monitoring information to the surveillance information processing apparatus at the time of intrusion determination. Combined with a device and a web camera to drive the web camera based on the surveillance information applied from the monitoring device; Surveillance information processing device for providing shooting information photographed through a blown web camera to the optical subscriber network termination device, and providing the shooting information applied from the monitoring information processing device to the service providing server through the optical distribution network and the optical ray termination device. And the service providing server is configured to provide photographing information authorized from the indoor device to a security company server and a subscriber terminal through a predetermined communication network.

That is, according to the above, the FTTH system uses the optical signal flowing into the home as a light source for intrusion detection, and is configured with an optical sensor using a low-cost fiber optic to detect whether the home invades at a low cost. By driving and providing the photographing information to the terminal of the security company and the subscriber, it is possible to quickly cope with the invasion of the home.

Next, an embodiment according to the present invention will be described.

1 schematically shows the configuration of an integrated monitoring system using an optical fiber sensor according to a first embodiment of the present invention.

As shown in FIG. 1, in the integrated monitoring system using the optical fiber sensor, an optical line terminal (OLT: 200) coupled with a predetermined service providing network 100 has an optical division network (ODN: 300). ) Is configured through a plurality of indoor devices (400: 400 ₁ ~ 400 _N ) and through the optical cable (OC).

Here, the service providing network 100 may be composed of a broadcasting service network 110 for providing CATV or satellite broadcasting service and a data service network 120 for providing high speed Ethernet service.

In addition, the optical fiber terminal 200 converts a broadcast signal applied from the broadcast service network 110 into an optical signal and outputs the optical signal to the optical distribution network 300, and includes an optical transmitter and an optical receiver to provide a data service network 120 ) And the optical distribution network 300. In this case, the optical fiber termination apparatus 200 synthesizes a broadcast signal and an optical signal for data provided from the data service network 200 and provides the optical signal to the optical distribution network 300.

In addition, the optical distribution network 300 serves as an optical transmission medium between the optical fiber terminal 200 and the indoor device 400, and may be configured in various forms according to the structure of the network. At this time, the end of the optical cable (OC) is coupled to the indoor device 400 is introduced into the home through the OUTLET (W) as shown in FIG.

In addition, the indoor device 400 is a splitter 410 is coupled through the optical distribution network 300 and the optical cable (OC), as shown in Figure 2 and is coupled through the splitter 410 and the optical cable (OC) and In addition, the other end is combined with a subscriber terminal, such as HDTV or computer, converts the optical signal applied from the splitter 410 into an electrical signal and then provides it to the subscriber terminal or converts the electrical signal provided from the subscriber terminal into an optical signal. After the optical subscriber terminal 420, the splitter 410 and the optical cable (OC) provided to the splitter 410 is coupled to the surveillance to monitor the intruder in the home using the optical signal applied from the splitter 410 Surveillance information processing for driving the web camera 450 on the basis of the monitoring signal applied from the device 430 and the monitoring device 430, and storing and displaying image / video information applied from the web camera 450. Configured with an apparatus 440. In this case, the splitter 410 and the optical subscriber terminal 420, the splitter 410 and the monitoring device 430 is configured to be detachable through an optical connector.

The splitter 410 separates an optical signal applied from the optical distribution network 300 by a predetermined ratio, for example, 99: 1, and provides an optical signal corresponding to “99” to the optical subscriber network device 420. The optical signal corresponding to "1" is provided to the monitoring device 430.

In addition, the optical subscriber terminal device 420 separates the optical signal applied from the splitter 410 to provide a multimedia service such as HDTV, to enable data communication through a terminal such as a computer, and various subscribers to enable voice communication. It is configured to be coupled to the terminal to provide the data applied from each subscriber terminal to the splitter 410.

In addition, as shown in FIG. 3, the monitoring device 430 includes first and second optical fibers 431 _a1 and 431 _a2 having a predetermined length in parallel, and the first and second optical fibers 431 _a1 and 431 _a2 . At the end of the sensor unit 431 is configured to combine the predetermined reflectors (431 _b1 , 431 _b2 ) for reflecting the input light, the optical connection unit 432 for coupling with the splitter 410, the electrical signal input The photodiode 433 and the optical signal applied from the optical connection unit 432 are converted into a conventional signal and output to the sensor unit 431, and the reflected light reflected from the sensor unit 431 is applied to the photodiode. A coupler 434 provided to 433, a reference level information storage unit 435 for storing reference signal level information for determining intrusion detection, and function setting of the monitoring device 430, for example, operation start and end settings. Information input unit 436 for, alarm generating unit 437 for providing the alarm information It is constituted by a control unit 438 for controlling the overall operation of the monitoring apparatus (430). Here, an optical amplifier 471 such as an optical amplifier or an optical repeater is coupled between the optical connector 432 and the coupler 434 to provide a predetermined level of light applied from the optical connector 432. It may be configured to amplify and provide the coupler 434. In addition, the optical coupler 432 and the coupler 434 is coupled to the signal restorer 481, such as a signal generator or a signal restorer, as shown in Figure 5 to restore the shape of the amplified light coupler 434 It is also possible to configure to provide). In addition, the optical amplifier 432 and the coupler 434 may be configured by sequentially combining the optical amplifier 471 and the signal restorer 481 as shown in FIG.

The first and second optical fibers 431 _a1 and 431 _{a2 of} the sensor unit 431 are general glass optical fibers or plastic optical fibers, and the outer surface of the optical fiber is coated with a predetermined protective layer such as PVC. The lengths of the first and second optical fibers 431 _a1 and 431 _a2 are set to approximately 500 m or less. At this time, the optical fiber 431a has a characteristic that the phase of the optical signal traveling through the optical fiber is changed due to an external shock, for example, vibration or physical force around the optical fiber is installed. Therefore, when the intruder enters the home, a phase difference is generated in the optical signal of the optical fiber 431a by the vibration or physical force generated by the intruder, and thus is applied to the photodiode 433 through the coupler 434. The signal level of the reflected light is changed. For example, the sensor unit 431 is installed on the lower side of the footrest (X) placed in front of the front door as shown in Figure 7 (Fig. 7a), or installed along the border of the window (Y) (Fig. 7b), the wall surface It can be carried out in various forms, such as being installed in the inner side Z (FIG. 7C) or installing along the edge of the home wall Z (FIG. 7D).

The coupler 434 separates an optical signal applied from the splitter 410 through a connecting portion 432 at a ratio of 50:50 and provides the first and second optical fibers 431 _a1 and 431 _a2 , respectively, And synthesized first and second reflected light applied from the second optical fibers 431 _a1 and 431 _a2 to the photodiode 433.

The photodiode 433 repeatedly converts the reflected light applied from the coupler 434 into an electrical signal based on the control signal applied from the controller 439 and provides the converted signal to the controller 438 at predetermined periodic intervals. Done.

The control unit 438 uses the signal level of the reflected light applied from the photodiode 433 as a reference signal level based on the predetermined operation start information from the information input unit 436 as the reference level information storage unit 435. Store in The control unit 438 compares the signal level of the reflected light applied from the photodiode 433 and the reference signal level after the reference level is set, and when the difference between the signal levels becomes a predetermined level or more, the alarm information is output through the alarm generating unit 437. Will be provided. The controller 438 clears the reference level information storage unit 435 based on the predetermined operation termination information from the information input unit 436. That is, the control unit 438 resets the reference level of the sensor unit 431 at each start of the monitoring operation. This takes into account that phase change occurs on the first and second optical fibers 431 _a1 and 431 _a2 in a steady state over time or due to intrusion by an intruder.

On the other hand, the alarm generating unit 437 is, for example, RS232C to perform data communication with the light emitting display unit 437a for performing light emitting display processing, the buzzer 437b for transmitting an alarm sound, and the monitoring information processing apparatus 440. It comprises a communication connection portion 437c configured in the form. That is, when it is determined that the intrusion detection, the control unit 438 displays the light emission through the light emitting display unit 437a or sends an alarm sound through the buzzer 437 or provides predetermined intrusion detection information through the communication connection unit 437c. The control is sent to the monitoring information processing device 440.

In addition, the information input unit 436 may be installed outside the home so that the user can set whether the operation after leaving the front door. This is to prevent a malfunction that determines the user as an intruder by vibrating due to the user's movement when setting the operation function of the monitoring device 430 in the home.

Meanwhile, in FIG. 2, the monitoring information processing device 440 corresponds to a connection port 441 for electrically coupling with the monitoring device 430 and a connection port provided in the web camera 450 as shown in FIG. 8. Web camera controller 442, which is configured as a connection port, for example, a USB port, a web camera controller 443 that performs a communication interface function between the web camera 450 and the controller 447 through the web camera connector 442, and inputs information. Key input unit 444 equipped with various function keys for the display, operation of the surveillance information processing device 440, display unit 445 for displaying and outputting predetermined photographing information, and storing image information photographed from the web camera 450 And a control unit 447 for controlling the overall operation of the surveillance information processing apparatus 440.

Here, the photographing information storage unit 446 stores time information and image information for each photographing date.

In addition, the controller 447 controls the driving of the web camera 450 through the web camera controller 443 based on the intrusion detection information applied from the monitoring device 430, and the web from the web camera 450. The image information provided through the camera controller 443 is stored in the photographing information storage unit 446. When the output request for the photographing information is received from the key input unit 444, the controller 447 reads out the corresponding image information from the photographing information storage unit 446 and controls the display unit 445 to display the image information.

Next, the operation of the device having the above configuration will be described.

First, the optical fiber terminal 200 coupled with the service providing network 100 is combined with the optical distribution network 300 through the optical cable OC, and the optical distribution network 300 is connected to the indoor device through the optical cable OC. In the combined state with the 400, the indoor device 400 separates the optical signal applied through the optical distribution network 300 at a predetermined ratio through the splitter 410, and thus the optical subscriber device 420 and the monitoring device 430. To each. In addition, the monitoring device 430 is coupled to the monitoring processing device 440, the monitoring processing device 440 is coupled to the web camera 450.

Here, the optical subscriber device 420 provides broadcast information, such as CATV or satellite broadcasting, provided to the service providing network 100 through a broadcast medium, and the optical subscriber device 420 for information such as data or voice. It is to provide a service to perform a two-way communication with the data terminal and the service providing network 100, such as a computer combined with.

On the other hand, the operation of the monitoring device 430 is as follows.

First, the user installs the first and second optical fibers 431 _a1 and 431 _a2 in a predetermined position for detecting an intruder's intrusion, for example, as shown in FIG. 7. In this case, the first and second optical fibers 431 _a1 and 431 _a2 may provide the reflected light reflected through the first and second reflectors 431 _b1 and 431 _b2 to the photodiode 433 through the coupler 434. do.

In the above state, when the user exits the front door and locks the door and inputs an operation start function key through the information input unit 436 installed outside the front door, predetermined operation start information is applied to the control unit 438.

The controller 438 sets the photodiode 433 and the alarm generator 437 to an operation state based on the operation start information applied from the information input unit 436. In this case, the photodiode 433 converts the reflected light applied from the coupler 434 into an electrical signal and provides the converted signal to the controller 438.

The control unit 438 stores the signal level of the reflected light initially applied from the photodiode 433 in the reference level information storage unit 435 as reference signal level information. Here, the control unit 438 may be configured to transmit a predetermined error message through the alarm generating unit 437 when the signal level set as the reference signal level becomes above the predetermined level or below the predetermined level. In the state where the reference signal level is normally set, the controller 438 compares the signal level of the reflected light periodically applied from the photodiode 433 and the reference signal level to determine whether the difference is a predetermined level or more.

At this time, when the intruder enters the home, the phase is changed to the light traveling through the first or second optical fibers 431 _a1 and 431 _a2 of the sensor unit 431, and the first and second reflected light of the changed phase are couplers. Synthesized via 434 and applied to photodiode 433. The photodiode 433 provides the control unit 438 with the signal level of the reflected light. When the difference between the signal level of the reflected light applied from the photodiode 433 and the reference signal level is more than a predetermined level, the controller 438 displays the light emission through the light emitting display 437a or sends an alarm sound through the buzzer 437b. The intrusion detection information is provided to the monitoring information processing device 440 through the communication connection unit 437c.

In addition, the surveillance information processing apparatus 440 drives and controls the web camera 450 based on the intrusion detection information applied from the surveillance apparatus 430 to perform a photographing process. In this case, the image information photographed from the web camera 450 is applied to the surveillance information processing apparatus 440, and the surveillance information processing apparatus 440 stores the image information provided from the web camera 450. In addition, the monitoring information processing device 440 displays and outputs the corresponding photographing information through the display unit 445 based on the photographing information output function key input information applied from the key input unit 444.

That is, according to the embodiment, an integrated monitoring system using an optical fiber sensor that provides an indoor monitoring service at a low cost by using an optical signal provided to the home as a light source for intrusion detection and using a low cost optical fiber as an optical sensor. It can be provided.

However, in the above embodiment, since the photographed information can be confirmed after the subscriber enters the home, there is a problem that it is difficult to cope with the damage caused by the intruder.

Accordingly, in the present invention, it is possible to provide the security information or the subscriber in real time with the image information photographing the intrusion state of the intruder so as to be able to quickly cope with the intruder intrusion.

9 is a system schematic diagram showing a schematic configuration of an integrated monitoring system using an optical fiber sensor according to a second embodiment of the present invention.

In the integrated monitoring system using the optical fiber sensor according to the present invention, as shown in FIG. 9, the service providing server 100 is coupled with a plurality of indoor devices 500 through the optical fiber termination device 200 and the optical distribution network 300. It is configured. The service providing server 100 is coupled to the security company server 600 and the subscriber terminal 700 through a predetermined communication network. Here, the communication network may be any existing communication network such as a packet network such as a general public switched telephone network (PSTN) or the Internet, a mobile communication network, a wireless local loop (WLL), an integrated service data network (ISDN), or the like. In addition, as the subscriber terminal 700, all communication terminals providing communication functions such as a general personal computer, a mobile communication terminal, a cell phone, a general telephone, an ISDN terminal, a PDA, and the like are possible.

In addition, the service providing server 100 stores the photographing information provided from the indoor device 500 in a database (not shown), and transmits the photographing information to the security company server 600 and the subscriber terminal 700. It is configured to provide.

In addition, the indoor device 500 divides the optical signal applied from the optical distribution network in the splitter 510 by, for example, 99: 1 as shown in FIG. 10 so that the signal corresponding to "99" is the optical subscriber termination device. A signal corresponding to “1” is provided to the monitoring device 530. The monitoring device 530 detects the intrusion of the intruder based on the optical signal applied from the splitter 510 and provides the intrusion information to the monitoring information processing device 540 when determining the intrusion. The surveillance information processing device 540 is coupled to the web camera 550 to drive the web camera 550 based on the intrusion information provided from the monitoring device 530, and the image provided from the web camera 550. Information is provided to the optical subscriber terminal 520. The optical subscriber terminal device 520 provides the splitter 510 with image information applied from the monitoring information processing device 540. The splitter 510 provides the image information applied from the optical subscriber terminal device 520 to the service providing server 130 through the optical distribution network 300 and the optical fiber terminal device 200.

That is, the monitoring information processing device 540 is further provided with a second connection port 541 for coupling with the optical subscriber terminal 520 as shown in FIG. In addition, the control unit 542 includes a predetermined client program CP for transmitting and receiving predetermined information in cooperation with the service providing server 130.

In addition, the service providing server 130 is a network connection unit 131, a web server 132, a host computer 133, and the database 134, for example, as shown in FIG. Combination is configured through. Of course, these devices may be configured as separate servers or integrated in a single server.

The network connection unit 131 is for network connection between the optical fiber terminal device 200 and the security company server 600 and the subscriber terminal 700.

The web server 132 performs user registration and login processing, and stores the personal information provided at the time of membership registration and the photographing information provided from the indoor device 500 in the database 150. Here, the photographing information includes a photographing date and time and image information.

The host computer 133 stores the image information of the web camera provided through the gateway 131 in the database 134 and sends the network connection unit 131 a predetermined message corresponding to the received photographing information or the received photographing information. Through the security provider server 600 and the subscriber terminal 700 of the subscriber. In addition, a GUI (Graphic User Interface) function is provided so that an operator can manage the entire system.

The database 134 is allocated a predetermined storage area for each member and the access information of the security company server 600. These storage areas store personal information such as name, home address, social security number, subscriber terminal information to be provided with photographing information, and photographing information provided from the indoor device 500. In this case, the subscriber terminal information is, for example, access information to each communication terminal such as a mobile communication terminal number, a general telephone number, or an e-mail, and a plurality of subscriber terminal information can be registered, and for a plurality of subscriber terminal information Priority may be given according to the selection of.

That is, in the second embodiment, the intruder's intrusion is detected by using the optical signal of the FTTH system flowing into the home, and when the intrusion is detected, the web camera is driven to photograph the intrusion situation, and the captured image information is used for the FTTH system. It is configured to provide to the service providing server through. And, the service providing server will provide the shooting information provided through the FTTH system to the security company server and subscriber terminal.

Therefore, according to the above embodiment, the FTTH system uses the optical signal flowing into the home as a light source for intrusion detection, and is configured with a low cost optical fiber as an optical sensor to detect whether the home invades at a low cost, and a web camera determines the intrusion detection. By providing the photographing information to the terminal of the security company and the subscriber can be quickly responded to invasion of the home.

In addition, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the technical spirit of the present invention.

As described above, according to the present invention, the FTTH system uses the optical signal flowing into the home as a light source for intrusion detection, and is configured with an optical sensor using a low-cost fiber optic to detect whether the home is intruded at low cost, By driving the camera and providing the photographing information to the terminal of the security company and the subscriber it is possible to perform a quick response to the intrusion into the home.

Claims (9)

In the FTTH system is configured such that the optical fiber termination device coupled to the service providing network is coupled to a plurality of indoor devices through the optical distribution network, The indoor device may include: a splitter for separating the optical signal applied from the optical distribution network at a predetermined ratio and providing the optical subscriber terminal device and the monitoring device, respectively, coupled to the subscriber terminal; It is determined whether the intrusion is detected based on the change of the signal level of the optical fiber of a certain length and the end of the optical fiber and the reflector coupled to the reflected light applied from the sensor, and the monitoring information at the time of intrusion determination to the monitoring information processing apparatus. The monitoring device comprising a control means for providing, And a surveillance information processing device coupled to the web camera to drive the web camera based on the surveillance information applied from the surveillance device and to store image information photographed through the web camera. Integrated surveillance system using sensors. The method of claim 1, In the monitoring device, the sensor unit is configured such that a reflector is coupled to the ends of the first and second optical fibers while the first and second optical fibers of a predetermined length are arranged in parallel, The photodiode converts and outputs an optical signal into an electrical signal, and separates the optical signal applied from the splitter and provides the optical signal to the first and second optical fibers, and combines the reflected light applied from the first and second optical fibers. Further provided with a coupling means provided to the photodiode, The control means sets the signal level of the reflected light initially applied from the photodiode to a reference level and performs alarm processing when it is determined that the difference between the signal level of the reflected light applied from the photodiode and the reference level is higher than a predetermined level. Integrated monitoring system using a fiber optic sensor, characterized in that to control. The method of claim 2, The first and second optical fibers of the sensor unit is an integrated monitoring system using an optical fiber sensor, characterized in that the optical fiber coated with a protective layer. The method of claim 2, The monitoring device is configured to further include information input means for turning on / off the operation of the monitoring device, And the control means resets the signal level of the reflected light initially received from the photodiode to the reference signal level after receiving the operation start information when the operation start information is applied from the information input means. The method of claim 1, The surveillance information processing apparatus includes an information input means and an information output means, and is configured to display and output corresponding image information through the information output means for the photographing information output request applied from the information input means. Surveillance system. In the FTTH system is configured such that the optical fiber termination device coupled to the service providing server is coupled to a plurality of indoor devices through the optical distribution network, The indoor device comprises a splitter for separating the optical signal applied from the optical distribution network at a predetermined ratio and providing the optical subscriber terminal device and the monitoring device, respectively, coupled to the subscriber terminal, the optical fiber of a predetermined length, and a reflector coupled to the end of the optical fiber. A monitoring device, a web camera, comprising: a sensor unit, and control means for determining whether or not an intrusion is made based on a change in a signal level of reflected light applied from the sensor unit, and providing monitoring information to the monitoring information processing device at the time of determining intrusion. A surveillance information processing device coupled to drive the web camera based on the surveillance information applied from the surveillance device, and providing the image information photographed through the web camera to the optical subscriber network termination device, and the surveillance information processing device. It is configured to provide the applied image information to the service providing server through the optical distribution network and the optical fiber termination device, The service providing server is an integrated monitoring system using an optical fiber sensor, characterized in that configured to provide the image information from the indoor device to the security company server and subscriber terminal through a communication network. The method of claim 6, In the monitoring device, the sensor unit is configured such that a reflector is coupled to the ends of the first and second optical fibers while the first and second optical fibers of a predetermined length are arranged in parallel, The photodiode converts and outputs an optical signal into an electrical signal, and separates the optical signal applied from the splitter and provides the optical signal to the first and second optical fibers, and combines the reflected light applied from the first and second optical fibers. Further provided with a coupling means provided to the photodiode, The control means sets the signal level of the reflected light initially applied from the photodiode to a reference level and subsequently performs an alarm process when it is determined that the difference between the signal level of the reflected light applied from the photodiode and the reference level is higher than a predetermined level. Integrated monitoring system using a fiber optic sensor, characterized in that to control. The method of claim 7, wherein The first and second optical fibers of the sensor unit is an integrated monitoring system using an optical fiber sensor, characterized in that the optical fiber coated with a protective layer. The method of claim 7, wherein The monitoring device is configured to further include information input means for turning on / off the operation of the monitoring device, And the control means resets the signal level of the reflected light initially received from the photodiode to the reference signal level after receiving the operation start information when the operation start information is applied from the information input means.

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