JP2005315980A - Optical wiring searching system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a maintenance worker easily and surely search an optical fiber of a certain subscriber out of optical fibers of a lot of subscribers enclosed in a closure. <P>SOLUTION: An IC tag 10 with lamp containing identification information peculiar to the subscriber is attached at respective ends of optical fibers 1 for a lot of subscribers enclosed in the closure 3. The IC tag 10 with lamp is composed by including an informing apparatus composed of a driving part 17 and a lamp 18 in a wireless IC tag part composed of a control part 11, a modulation part 12, an antenna 13, a demodulation part 14, a storage part 15 and a power source generation part 16. Driving power of the informing apparatus is supplied by wireless from a portable type wireless IC tag reader carried by the maintenance worker. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to an optical wiring search system that searches for an optical fiber of a specific subscriber in a wiring box called a closure that branches an aggregate optical fiber to a subscriber line.

In recent years, various types of optical line services have increased rapidly, and the occurrence of optical line failures has increased accordingly. When a failure occurs, a report is received from the subscriber, and a maintenance worker performs a line test between the subscriber line and the closure. A large number of optical fibers as subscriber lines are accommodated in the closure, and a tag is attached to each optical fiber. On this tag, identification character information for identifying the fiber is entered or printed.

The maintenance worker searches the optical fiber of the subscriber from the tag and wiring diagram. However, mistakes such as wrong reading of the tag identification character information occur, or the tag identification character information is the latest information. Or the tag itself is buried in a large number of fibers and the character information for identification cannot be read, and the problem is that the subscriber's fiber cannot be specified accurately. That is, there is a problem that even if a tag is attached to each fiber in the closure, maintenance work is never performed smoothly.

By the way, Japanese Patent Application Laid-Open No. 2003-284213 discloses an optical fiber core connection / branch work management system using a wireless IC tag. In this system, wireless IC tags storing unique identification information are attached to a number of closures installed at connection / branch points of an optical fiber network. Since the closures are installed at a predetermined interval, the maintenance worker moves to the location where the closure is considered to be searched, and the wireless IC tag attached to the closure there is a management device that is a wireless IC tag reader Access by. When the communication between the wireless IC tag and the management apparatus is established, the management apparatus display screen recognizes that the closure with the wireless IC tag is a search target, and if not, the closure is not a search target. This is a system that can be used. This system is established because the adjacent closures are installed sufficiently apart so that radio waves from a management device that is a wireless IC tag reader cannot reach at the same time.

However, even if a wireless IC tag is attached to a large number of optical fibers that are densely stored in the closure, the optical fiber being searched cannot be searched. This is because the radio wave transmitted from the management device that is the wireless IC tag reader reaches all the wireless IC tags in the closure at the same time.

JP 2003-284213 A

  The problem to be solved by the present invention is that a maintenance worker can easily and reliably search for an optical fiber of a specific subscriber from among optical fibers that are a large number of subscriber lines housed in a closure. Is to do so.

  In order to solve the above-described problem, a closure-side wireless IC tag storing identification information unique to a subscriber is attached to each end of a number of optical fibers housed in a closure, and the closure-side is attached to the closure. A notification device that operates in cooperation with each wireless IC tag is provided.

According to the present invention, when a maintenance worker operates a portable wireless IC tag reader to access a wireless IC tag attached to each of a large number of optical fibers stored in the closure, the maintenance worker prepares for the wireless IC tag. Since the informing section that has been informed that it is the object of the search, it has become possible to easily and reliably search for an optical fiber to be searched from among a large number of optical fibers. Accordingly, it is possible to prevent a maintenance worker from making a mistake, and at the same time, workability is improved.

  In the optical wiring search system according to the present invention, a wireless IC tag storing identification information unique to a subscriber is attached to each end of a large number of subscriber optical fibers housed in a closure, and the portable wireless IC tag reader uses the wireless IC tag reader. An optical wiring search system that accesses a wireless IC tag to search for an optical fiber that is a specific subscriber line, and notifies the wireless IC tag that the optical fiber is a search target A portion is provided.

The optical wiring search system according to the first embodiment of the present invention includes a wireless IC tag in which a notification unit that notifies a search target is a lamp as a visible light generating unit, and a portable wireless IC tag reader. Yes.

As shown in FIG. 1, a wireless IC tag in which a notification unit that notifies that it is a search target is a lamp as a visible light generating unit, that is, a wireless IC tag with a lamp 10 includes a wireless IC tag unit and a notification unit. Has been. The wireless IC tag unit includes a control unit 11 such as a microprocessor, a modulation unit 12, an antenna 13, a demodulation unit 14, a storage unit 15, and a power generation unit 16, like a commercially available wireless IC tag. The notification unit uses visible light generating means, and includes a low-power drive lamp 18 such as an LED, and a drive circuit 17 thereof.

The wireless IC tag with lamp 10 is arranged in the closure 3 as shown in FIG. That is, the closure 3 is a wiring box that branches from the collective optical fiber 2 to a large number of subscriber optical fibers 1, but the wireless IC tag with lamp 10 is attached to each end of the subscriber optical fiber 1. The wireless IC tag with a lamp 10 is attached to the subscriber optical fiber 1 by, for example, the same method as that for attaching a tag.

As shown in FIG. 2, the portable wireless IC tag reader operated by the maintenance worker includes a control unit 21 such as a microprocessor, a modulation unit 22, an antenna 23, a demodulation unit 24, a storage unit 25, a power supply unit 26, and a display unit 27. , An input unit 28, and a communication IF unit 29. The communication IF unit 29 is used for communication with, for example, another portable wireless IC tag reader carried by another maintenance worker at the subscriber's home side.

Next, the flow of searching for a target subscriber optical fiber in the optical wiring search system according to the present invention will be described below.

The first search method using the optical wiring search system according to the present invention is a method in which the maintenance worker directly inputs the identification number of the optical fiber to be searched, that is, the corresponding ID, into the portable wireless IC tag reader. That is, as shown in the flowchart of FIG. 4, the maintenance worker operates the input unit 28 such as a keyboard to input the corresponding ID into the control unit 21 (101). The corresponding ID is directly input, or the corresponding ID stored in the storage unit 25 is read out.

Subsequently, the modulator 22 modulates the carrier wave with the corresponding ID to generate a search signal (102), and sends the search signal from the antenna 23 (103). The search signal is transmitted to all the wireless IC tags 10 in the specific closure 3.

The control unit 21 monitors the presence / absence of a response from the wireless IC tag 10 (104), and if it determines that there is a response from the wireless IC tag 10, it stops sending search signals (105). When it is determined that there is a response from the wireless IC tag 10, the wireless IC tag 10 that has established communication with the portable wireless IC tag reader displays its lamp in a blinking manner, as will be described later. A maintenance worker operating the leader can easily and reliably specify the subscriber optical fiber 1 to be searched.

If there is no response from the wireless IC tag 10 in step 104, the control unit 21 determines whether there is no response three times (106), and if NO, performs retransmission processing (107). If the determination in step 106 is YES, the control unit 21 stops sending the search signal (105).

The operation of the wireless IC tag 10 that has received the search signal from the portable wireless IC tag reader is as shown in the flowchart of FIG. That is, the wireless IC tag 10 receives high-frequency radio waves transmitted from the portable wireless IC tag reader, generates power by the power generation unit 16, and supplies power to each control unit 11 and the like. The wireless IC tag 10 demodulates the search signal received via the antenna 13 by the demodulator 14 and inputs the demodulated signal to the controller 11. The control unit 11 determines whether or not the received search signal includes its own ID stored in the storage unit 15 (301). When it is determined in step 301 that the own ID is included, the control unit 11 generates a response signal and gives it to the modulation unit 12. The modulation unit 12 modulates the carrier wave with the response signal and sends it out from the antenna 13 (302). Subsequently, the control unit 11 controls the drive unit 17 to turn on the lamp 18 (303). Therefore, the maintenance worker can easily and reliably specify the wireless IC tag 10 whose lamp 18 is lit. The subscriber optical fiber 1 to which the specified wireless IC tag 10 is attached can be specified easily and reliably.

Following step 303, the control unit 11 determines whether or not the specified time has elapsed for the lamp to be turned on (304), and if YES, turns off the lamp (305). If the determination result in step 303 is NO, the lamp is kept on until the specified time has elapsed. Since the designated time, that is, the time for which the lamp is continuously lit is a time necessary for specifying the subscriber optical fiber 1 to be searched, a short time is sufficient.

The maintenance worker does not directly input the identification number of the optical fiber to be searched, that is, the corresponding ID, into the portable wireless IC tag reader, but is unique to the subscriber at the end of the optical fiber 1 on the subscriber's home side. There is also a method of attaching the subscriber's home side wireless IC tag 10 storing the identification information and accessing the subscriber's home side wireless IC tag 10 with a portable wireless IC tag reader to obtain the identification information of the optical fiber to be searched. . The operation flow of the portable wireless IC tag reader that identifies the optical fiber 1 to be searched based on the identification information of the optical fiber to be searched acquired in this way, that is, the corresponding ID, is step 102 and subsequent steps in FIG. It is as follows. The operation flow of the wireless IC tag 10 corresponding to this is as shown in FIG.

In addition, according to the optical wiring search system which concerns on this invention, the information memorize | stored in the memory | storage part 15 of the wireless IC tag 10 can also be rewritten from a portable wireless IC tag reader. Further, as shown in the flowcharts shown in FIGS. 5 and 7, the latest information necessary for maintenance and inspection stored in the storage unit 15 of the wireless IC tag 10 can be acquired from the portable wireless IC tag reader. .

That is, the maintenance worker sends a collection signal to a specific wireless IC tag from the portable wireless IC tag reader (201). The control unit 21 monitors the presence / absence of a response from the wireless IC tag 10 (202), and when determining that there is a response from the wireless IC tag 10, the control unit 21 stores the ID information received from the wireless IC tag 10 in the storage unit 25. (203). If there is no response from the wireless IC tag 10 in step 203, the control unit 21 determines whether there is no response three times (204), and if NO, performs retransmission processing (206). If the determination in step 204 is YES, the control unit 21 displays an error on the display unit 27 and stores error information in the storage unit 25 (205).

Corresponding to the operation of the portable wireless IC tag reader of FIG. 5 described above, the wireless IC tag 10 operates as shown in FIG. That is, the wireless IC tag 10 receives high-frequency radio waves transmitted from the portable wireless IC tag reader, generates power by the power generation unit 16, and supplies power to each control unit 11 and the like. The wireless IC tag 10 demodulates the collected signal received via the antenna 13 by the demodulator 14 and inputs the demodulated signal to the controller 11. The control unit 11 determines whether or not the received collection signal includes its own ID stored in the storage unit 15 (401). When it is determined in step 401 that the self ID is included, the control unit 11 generates a response signal and gives it to the modulation unit 12. The modulation unit 12 modulates the carrier wave with the response signal and transmits it from the antenna 13 (402). The response signal includes the latest information necessary for maintenance and inspection stored in the storage unit 15.

As mentioned above, although the Example using the lamp | ramp which is a visible light generation means was demonstrated as the alerting | reporting part with which the wireless IC tag 10 was equipped, the said alerting | reporting part can be implement | achieved also with an acoustic generating means or a vibration generating means. is there.

It is a block block diagram of the IC tag with a lamp | ramp of the optical wiring search system of Example 1 of this invention. It is a block block diagram of the IC tag reader of the optical wiring search system of Example 1 of this invention. It is a schematic diagram of the closure which accommodated the subscriber optical fiber with which the IC tag with a lamp was mounted | worn. It is a flowchart which shows an example of operation | movement of an IC tag reader. It is a flowchart which shows another example of operation | movement of an IC tag reader. It is a flowchart which shows an example of operation | movement of IC tag with a lamp | ramp. It is a flowchart which shows another example of operation | movement of IC tag with a lamp | ramp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Subscriber optical fiber 2 Aggregation optical fiber 3 Closure 10 Lamped IC tag 11 Control part 12 Modulation part 13 Antenna 14 Demodulation part 15 Storage part 16 Power supply generation part 17 Drive part 18 Lamp 21 Control part 22 Modulation part 23 Antenna 24 Demodulation part 25 Storage Unit 26 Power Supply Unit 27 Display Unit 28 Input Unit 29 Communication IF Unit

Claims (6)

A wireless IC tag storing subscriber-specific identification information is attached to each end of a number of subscriber optical fibers housed in a closure, and the wireless IC tag is accessed by a portable wireless IC tag reader to perform a specific subscription. An optical wiring search system for searching for an optical fiber, wherein the wireless IC tag is provided with a notification unit for notifying that the optical fiber is a search target. Search system. A wireless IC tag storing identification information unique to a subscriber is attached to each end of a number of subscriber optical fibers housed in a closure, and the subscriber-specific optical fiber end is attached to the end of the optical fiber on the subscriber's home side. Attach the subscriber's home side wireless IC tag storing the identification information, access the subscriber's home side wireless IC tag with a portable wireless IC tag reader to obtain the identification information of the optical fiber to be searched, and then An optical wiring search system in which a wireless IC tag reader accesses the wireless IC tag to search for a specific subscriber optical fiber, and the wireless IC tag is to be searched for the optical fiber. An optical wiring search system comprising a notification unit that notifies The optical wiring search system according to claim 1 or 2, wherein the driving power of the notification unit uses a power source that is wirelessly supplied to the wireless IC tag from the portable wireless IC tag reader. . The optical wiring search system according to claim 1, wherein the notification unit is visible light generating means. The optical wiring search system according to claim 1, wherein the notification unit is sound generation means. The optical wiring search system according to claim 1, wherein the notification unit is a vibration generating unit.

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