JP2011130181A - Maintenance and monitoring system and maintenance and monitoring method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce recovery time by remotely identifying a fault condition and a cause thereof without dispatching a maintenance person for identifying the fault condition. <P>SOLUTION: A wireless terminal 60 includes: a fault condition analyzing function of receiving a signal to be used when an operation state of a V-ONU 52 is controlled by lighting of LEDs showing different operation types, and collecting the operation state of the V-ONU 52 or detecting a fault condition; and a wireless communication function of transmitting the operation state or the fault condition of the V-ONU 52 by radio in a specified low-power radio system or the like. A maintenance person receives the operation state or the fault condition of the V-ONU 52 transmitted from the wireless terminal 60, by a monitor 70 to identify the fault condition (lighting state of LEDs) of the V-ONU 52 without entering an MDF room (machine room) 55. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a maintenance monitoring system and a maintenance monitoring method used in a video communication network system for an apartment house.

  FIG. 9 is a conceptual diagram showing the configuration of a video communication network system according to the prior art. As shown in FIG. 9, the video communication network system includes a V-ONU (Visual-Optical Network Unit: “ONU” which is a terminal device installed on the user's home side of an optical fiber subscriber line in an apartment house, For broadcasting) (see, for example, Non-Patent Documents 1 to 3). In the video communication network system, TV video information is sent from a station building (head end) 20 to a detached house 40 or an apartment house 50 via a line 31 such as an optical fiber.

  First, for the detached house 40, the broadcast signal (video and audio information) from the optical transmitter 21a and the optical amplifier 22 and the communication signal such as the Internet service from the optical transmitter 21b are transmitted from the office building 20 to the WDM ( Wavelength Division Multiplexing (wavelength multiplexer / demultiplexer) 23 is combined and sent via a line 31 such as an optical fiber, divided again by WDM 41, transmitted to a television receiver 44 via V-ONU 42, and communicated with communication ONU 43. Via the communication terminal 45. Since the communication signal is handled together with the video information of the TV program to the detached house 40 and a V-ONU (video line terminal unit) is installed for each household, two-way communication is possible. is there.

  On the other hand, in the housing complex 50, a V-ONU 52 installed in an MDF room (Main Distributing Frame: a room in which a main wiring board is installed, for example, a machine room or a management room) 55 is used. In many cases, one V-ONU 52 is shared by all households of the apartment house 50. Broadcast signals (video and audio information) and communication signals from the station building 20 are sent together by a WDM 23 via a line 31, such as an optical fiber, and a closure 32, and an optical fiber connector with an optical fiber connector core. After switching to the line and processing the extra length of the cord, a large number of television receivers in each house in the apartment 50 are received via the V-ONU 52, the distributor 53, and the coaxial cable 54 such as a coaxial cable for television. Distributed to the machine 13.

  As described above, in the housing complex 50, television broadcasts of all households are often distributed and dealt with through the single V-ONU 52 to each household. By sharing this one V-ONU 52 by the number of households in the apartment house 50, an economical configuration can be realized. For the convenience of the connection configuration with one V-ONU 52 in such an apartment house 50, one-way communication from the station building 20 to the apartment house is performed.

Ministry of Internal Affairs and Communications Information and Communications Council Cable Broadcasting Committee (12th), October 26, 2005, "Search December 3, 2009", Internet <URL: http://www.soumu.go.jp/ main_sosiki / joho_tsusin / policyreports / joho_tsusin / yusen / 051026_1.html> Ministry of Internal Affairs and Communications Information and Communications Council Cable Broadcasting Committee (12th), October 26, 2005, "Search December 3, 2009", Internet <URL: http://www.soumu.go.jp/ main_sosiki / joho_tsusin / policyreports / joho_tsusin / yusen / 051026_3.html> Ministry of Internal Affairs and Communications Information and Communications Council Cable Broadcasting Committee (12th), October 26, 2005, "Search December 3, 2009", Internet <URL: http://www.soumu.go.jp/ main_sosiki / joho_tsusin / policyreports / joho_tsusin / yusen / pdf / 041026_3_s1_04.pdf>

  FIG. 10 is a conceptual diagram for explaining a maintenance problem of a video communication system / V-ONU for an apartment house according to the prior art. As shown in FIG. 10, TV image information is V-OLT (Visual-Optical Line Terminal: station-side video distribution device: equivalent to the optical transmitters 21 a and 21 b in FIG. 9) 21 installed in the accommodation building 20. Are sent to the V-ONU 52 in the MDF room (machine room) 55 of the housing complex 50 through the optical fiber 31 and distributed to the households by the coaxial cable 54 in the V-ONU 52.

  If the V-ONU 52 breaks down, all the households in the apartment house 50 cannot receive television images. As described above, in the television image optical fiber 31 for an apartment house as described above, only the downstream signal from the housing building 20 (V-OLT 21) to the apartment house (V-ONU 52) is transmitted, and an upstream signal is transmitted. Can not.

  Therefore, if there is a complaint from a user in the apartment 50 that “TV is not reflected”, there is a limit to failure information that can be grasped by the station 20 side. Dispatched to to deal with the failure. The maintenance staff dispatched here needs to enter the MDF room (machine room or management room) 55 in which the V-ONU 52 is installed in the apartment house 50, and grasp the situation such as the presence or absence of a failure to deal with it. .

  Therefore, there are the following three problems, and these problems are factors that delay the failure recovery until a TV image is projected.

  The first problem is that the failure situation cannot be grasped unless the maintenance staff is dispatched to the housing complex of the user who has a complaint. As a failure situation, it is necessary to identify / understand where the cause is in the optical fiber, the ONU, or the home.

  The second problem is that it is necessary to enter the MDF room (machine room or management room) of the apartment house where the V-ONU is installed in order to grasp the above-described failure situation. With regard to the keys of these machine rooms and management rooms, the contact of the manager of the apartment house and the work of lending / returning the keys of these machine rooms and management rooms occur.

  The third problem is that the maintenance staff dispatched to grasp the failure status is usually in charge of V-ONU. Therefore, if the failure location is other than V-ONU, another maintenance staff is assigned. There is a need to re-arrange.

  The present invention has been made in consideration of such circumstances, and the purpose of the present invention is to eliminate the need for dispatch of maintenance personnel to grasp the failure state, and to remotely grasp the failure state and its cause. Another object of the present invention is to provide a maintenance monitoring system and a maintenance monitoring method that can reduce the time required for recovery.

  In order to solve the above-described problems, the present invention is used in a video communication network system for an apartment house that distributes information including video through a termination device installed in the apartment house of an optical fiber subscriber line. A maintenance monitoring system for performing maintenance and operation status monitoring of the termination device, the control processing means collecting operation status information indicating the operation status of the termination device, and the operation status information collected by the control processing means. A wireless terminal comprising a terminal-terminal-side transmitting means for transmitting wirelessly; a monitoring-device-side receiving means for receiving operation status information transmitted from the terminal-terminal-side transmitting means outside the apartment house; and the monitoring device A maintenance monitoring system comprising: a monitoring device including information presenting means for presenting operation status information received by the side receiving means.

  According to the present invention, in the above invention, the monitoring device includes a monitoring device-side transmission unit that transmits an instruction requesting an operation status of the termination device to the wireless terminal, and the wireless terminal includes the monitoring device In accordance with an instruction from the side transmission means, the operation status information indicating the operation status of the termination device collected by the control processing means is transmitted by radio from the termination terminal side transmission means.

  According to the present invention, in the above invention, the monitoring device includes monitoring device side transmission means for transmitting a reset instruction signal for resetting the termination device to the wireless terminal, and the wireless terminal transmits the monitoring device side transmission When receiving a reset instruction signal from the means, the apparatus includes a reset means for resetting the termination device.

  According to the present invention, in the above invention, when the reset unit receives a reset instruction signal from the monitoring device-side transmission unit, the reset unit resets the termination device by controlling power on / off of the termination device. It is characterized by.

  According to the present invention, in the above invention, the termination device includes a first termination device that operates normally and a second termination device that operates when the first termination device fails. Failure detection means for detecting that a failure has occurred in the first termination device based on the operation status information indicating the operation status of the device, and that the failure has occurred in the first termination device by the failure detection means And switching means for stopping the operation of the first terminal device and operating the second terminal device.

  According to the present invention, in the above invention, when the wireless device switches from the first terminal device to the second terminal device by the switching unit, the switching is performed by the terminal terminal side transmitting unit. The device is notified.

  According to the present invention, in the above invention, the termination device includes a first termination device that operates normally and a second termination device that operates when the first termination device fails. A failure detection unit that detects that a failure has occurred in the first termination device is provided based on operation status information indicating an operation status of the device, and the failure has occurred in the first termination device by the failure detection unit. If the occurrence of a failure is detected, the termination terminal side transmission means notifies the monitoring device to the monitoring device. When the monitoring device receives the occurrence of the failure by the monitoring device side reception means, the first termination A monitoring device-side transmission unit that transmits a switching instruction for stopping the operation of the device and operating the second termination device, wherein the wireless terminal is a wireless unit that receives the switching instruction from the monitoring device-side transmission unit; And end-side receiving unit receives the switching instruction by the radio terminal side receiving unit, characterized in that it comprises a switching means for switching the operation from the first termination device to the second end device.

  According to the present invention, in the above invention, the terminator comprises a first terminator and a second terminator, and branches the information including the input video to split the first terminator and the second terminator. The video signal output from the first terminal device and the second terminal device is combined and output.

  Further, in order to solve the above-described problems, the present invention is used in a video communication network system for an apartment house that distributes information including video through a terminal device installed in the apartment house of an optical fiber subscriber line. A maintenance monitoring method for performing maintenance and operation status monitoring of the termination device, the step of collecting the operation status information indicating the operation status of the termination device by a wireless terminal; and the collected operation status information wirelessly A step of wirelessly transmitting by the terminal, a step of receiving the operation state information transmitted from the wireless terminal by the monitoring device outside the apartment house, and a step of presenting the received operation state information This is a maintenance monitoring method.

  According to this invention, it is not necessary to dispatch maintenance personnel for grasping the failure state, the failure state and the cause thereof can be grasped remotely, and the time required for recovery can be shortened.

It is a block diagram which shows the structure of the video communication network system by 1st Embodiment of this invention. It is a block diagram which shows the connection relation (structure of a radio | wireless maintenance monitoring system) of V-ONU52 and the radio | wireless terminal 60 by this 1st Embodiment. It is a block diagram which shows the structure of the video communication network system by this 2nd Embodiment. It is a block diagram which shows the connection relation (structure of a radio | wireless maintenance monitoring system) of V-ONU52 and the maintenance terminal 61 by this 2nd Embodiment. It is a block diagram which shows the structure of the video communication network system by this 3rd Embodiment. It is a block diagram which shows the connection relationship (structure of a wireless maintenance monitoring system) of V-ONU52 and the maintenance terminal 62 by this 3rd Embodiment. It is a block diagram which shows the structure of the video communication network system by this 4th Embodiment. It is a block diagram which shows the connection relationship (structure of a radio | wireless maintenance monitoring system) of V-ONU52a, 52b and the maintenance terminal 63 by this 4th Embodiment. It is a conceptual diagram which shows the structure of the video communication network system by a prior art. It is a conceptual diagram for demonstrating the maintenance subject of the video communication system / V-ONU for apartment houses by a prior art.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
A. First Embodiment A first embodiment of the present invention will be described.
In the first embodiment, a wireless communication function and a failure status isolation function (V-ONU LED lighting state notification function) are added to the V-ONU 52. Thereby, the V-ONU situation installed in the building of the apartment house 50 can be grasped from outside.

  Outside the MDF room (machine room or management room) 55 where the V-ONU 52 of the apartment 50 is installed (without entering the MDF room), about 10m from the V-ONU 52 by wireless communication function. Communicate over a distance of between. And the lighting state of LED (Light Emitting Diode: light emitting element) which shows the condition of V-ONU52 can be confirmed by the outdoor monitoring apparatus.

  FIG. 1 is a block diagram showing a configuration of a video communication network system according to the first embodiment of the present invention. In FIG. 1, also in the video communication network system according to the first embodiment, a television signal is transmitted to the housing complex 50 through the optical fiber 31 as in the conventional technique described above. The television signal is converted into an electrical signal by a V-ONU 52 installed in an MDF room (machine room) 55 and transmitted to each household via a coaxial cable 54 and a distributor 53. The television receiver 13 of each household, 13,...

  A situation in which a television program cannot be normally displayed occurs due to various factors such as a disconnection of the optical fiber 31, the coaxial cable 54, a failure of the V-ONU 52, the distributor 53, or the television receiver 13. In any of these cases, the user will contact (complaint) about the situation to the operator who performs the television distribution. Upon receiving this notification, the television distribution company dispatches maintenance personnel to the housing complex 50 that has notified the complaint.

  According to the prior art, the dispatched maintenance staff borrows the key of the MDF room (machine room) 55 in which the V-ONU 52 is installed from an administrator, etc., enters the MDF room (machine room) 55, and receives the V- The cause of the failure was ascertained by checking the operating status of the ONU 52.

  On the other hand, in the first embodiment, as shown in FIG. 1, the maintenance staff goes to the vicinity of the MDF room (machine room) 55 in which the apartment house V-ONU 52 is installed, and the MDF room (machine) It is possible to grasp the failure status (LED lighting state) of the V-ONU 52 without entering the room 55).

  Therefore, in the first embodiment, a wireless terminal 60 having a wireless communication function and a failure status isolation function (notification function of LED lighting state of V-ONU 52, details will be described later) is attached to V-ONU 52. Alternatively, the wireless terminal 60 having a wireless communication function and a failure status isolation function may be incorporated in the V-ONU 52.

  As a wireless communication function of the wireless terminal 60, for example, a form such as a wireless tag with a sensor (RFID: Radio Frequency Identification), a FOMA (registered trademark) module of a cellular phone (reference document 1, “NTT docomo (registered trademark)” ) Press Release, July 8, 2008, FOMA ubiquitous module “FOMA UM02-F” and “FOMA UM02-F adapter set” released, http://www.nttdocomo.co.jp/info/news_release/ page / 080708_00.html ") (hereinafter referred to as a communication module).

  Among the candidates mentioned as the wireless communication function of the V-ONU 52 described above, when the same thing as a wireless tag (active tag equipped with a battery) is used as a wireless communication function, the maintenance staff possesses As a communication distance between the device 70 (which becomes a receiving device in the case of a tag) and the V-ONU 52, about 10 m can be secured.

  Although the communication here depends on the radio wave, for example, in a specific low power radio (1 mW, 426 MHz, or 10 mW, 429 MHz), communication of 100 m to several hundred m can be performed at a line-of-sight distance. Even when there are obstacles such as doors or walls, communication of about 10 m from those obstacles is possible.

  As a failure status isolation function of the wireless terminal 60, a signal when the V-ONU 52 performs lighting control with different LEDs for each type of operation is drawn, and the operation status of the V-ONU 52 is collected or the failure status is detected. It is a function.

  Further, the maintenance staff possesses a monitoring device 70 as a device for performing wireless communication with the wireless terminal 60. The monitoring device 70 includes a reception function for performing wireless communication with the wireless terminal 60 and a presentation function for presenting (for example, displaying) the operation status determined by the wireless terminal 60 to maintenance personnel.

  FIG. 2 is a block diagram showing a connection relationship (configuration of the wireless maintenance monitoring system) between the V-ONU 52 and the wireless terminal 60 according to the first embodiment. In FIG. 2, a V-ONU 52 includes an optical input signal receiving unit 52-1, a signal processing / control processing unit 52-2, a video signal output unit 52-3, a power supply unit 52-4, and a status display LED group 52-. It is composed of five. The optical input signal receiving unit 52-1 receives a signal transmitted through the optical fiber 31, and supplies the received signal to the signal processing / control processing unit 52-2. The optical input signal receiving unit 52-1 determines the presence / absence of an input signal transmitted through the optical fiber 31, and transmits the determination result to one LED 53a of a state display LED group 52-5 described later. For example, when the input signal is correctly received, the LED 53a is lit. This LED 53a is shown as optical input signal reception (◎) in FIG.

  The signal processing / control processing unit 52-2 processes the signal supplied from the optical input signal receiving unit 52-1, and supplies the processed signal to the video signal output unit 52-3. The signal processing / control processing unit 52-2 determines whether the supplied signal to be processed is normal / abnormal or whether all the functions of the V-ONU 52 are normal / abnormal, and the determination result is At the same time, it is supplied to the video signal output unit 52-3.

  The video signal output unit 52-3 receives the signal processed and supplied by the signal processing / control processing unit 52-2, and outputs the signal to the coaxial cable 54 as a television video signal. In addition, the video signal output unit 52-3 determines whether all the functions of the V-ONU 52 are normal / abnormal and the video signal is normally supplied from the signal processing / control processing unit 52-2. The determination result indicating whether or not it is output is transmitted to one LED 53b of the state display LED group 52-5. For example, when the video signal is normally output, the LED 53b is lit. This LED 53b is shown as a video signal output (●) in FIG.

  The power supply unit 52-4 supplies power to all the functions of the V-ONU 52, and the power of the V-ONU 52 is ON / OFF to one LED 53c in the status display LED group 52-5. To communicate. For example, when the power is on, the LED 53c is lit. This LED 53c is shown as power ON (◯) in FIG.

  The status display LED group 52-5 includes a plurality of LEDs 53a, 53b, and 53c. As described above, the presence / absence of an input signal transmitted from the optical input signal receiving unit 52-1, a video signal output unit LED 53a so that the user can know the normality / abnormality of the video signal including normality / abnormality of all V-ONUs 52 transmitted from 52-3 and the ON / OFF state of the power supply of V-ONU52. , 53b, 53c.

  The wireless terminal 60 includes a control processing unit 60-1, a transmission function unit 60-2, and a power supply unit 60-3. The control processing unit 60-1 controls the entire operation of the wireless terminal 60, and particularly indicates a signal (determination result) for controlling the state display LED group 52-5 of the V-ONU 52, that is, the status of the V-ONU 52. The information is received and supplied to the transmission function unit 60-2. The transmission function unit 60-2 transmits information indicating the status of the V-ONU 52 supplied from the control processing unit 60-1 by a predetermined radio wave. The power supply unit 60-3 supplies power for driving the wireless terminal 60.

  In this way, by branching the wiring for controlling the status display LED group 52-5 of the V-ONU 52, it can be easily connected to the wireless terminal 60, so that the internal configuration of the existing V-ONU 52 is hardly changed. In addition, the wireless terminal 60 can be easily attached. Although the power supply unit 60-3 of the wireless terminal 60 is separate from the power supply unit 52-4 of the V-ONU 52, the power of the wireless terminal 60 is supplied from the power supply unit 52-4 of the V-ONU 52. You may make it do.

Next, the operation of the first embodiment will be described.
A situation in which a television program cannot be normally displayed occurs due to various factors such as a disconnection of the optical fiber 31, the coaxial cable 54, a failure of the V-ONU 52, the distributor 53, or the television receiver 13. In any of these cases, the user will contact (complaint) about the situation to the operator who performs the television distribution. Upon receiving this notification, the television distribution company dispatches maintenance personnel to the housing complex 50 that has notified the complaint.

  In the V-ONU 52, the LED 53a is controlled to be turned on / off according to the determination result of the presence / absence of the input signal by the optical input signal receiving unit 52-1, and a signal according to the determination result is a control processing unit of the wireless terminal 60 60-1. Similarly, the signal processing / control processing unit 52-2 determines the normality / abnormality of the signal to be processed or the normality / abnormality of all the functions of the V-ONU 52, and the video signal output unit 52-3 The LED 53b is controlled to be turned on / off according to the determination result of the normal output, and a signal corresponding to the determination result is supplied to the control processing unit 60-1 of the wireless terminal 60. Further, the LED 53c is controlled to be turned on / off according to the determination result of the power supply of the V-ONU 52 by the power supply unit 52-4, and a signal corresponding to the determination result is a control process of the wireless terminal 60. To the unit 60-1.

  In the wireless terminal 60, the control processing unit 60-1 receives a signal (determination result) for controlling the state display LED group 52-5 of the V-ONU 52, and the transmission function unit 60-2 transmits the signal by a predetermined radio wave. .

  The dispatched maintenance staff goes to the vicinity of the MDF room (machine room) 55 in which the apartment V-ONU 52 is installed, and the monitoring device 70 separates the wireless terminal by a distance of about 10 m from the V-ONU 52. 60, a signal (determination result) for controlling the state display LED group 52-5 of the V-ONU 52 is received, and the ON / OFF state of the LEDs 53a, 53b, and 53c of the state display LED group 52-5 is received. Check.

  According to the first embodiment described above, without entering the MDF room (machine room) 55 in which the V-ONU 52 is installed, and with the manager required for entering the MDF room (machine room) 55 The failure status (LED lighting state) of the V-ONU 52 can be grasped without exchanging keys.

B. Second Embodiment Next, a second embodiment of the present invention will be described.
The second embodiment is characterized in that the status of the V-ONU 52 of the apartment house 50 can be grasped by remote control from within the station building (failure reception center).

  FIG. 3 is a block diagram showing the configuration of the video communication network system according to the second embodiment. It should be noted that portions corresponding to those in FIG. The V-ONU 52 installed in the MDF room (machine room) 55 of the apartment house 50 is maintained remotely (monitoring failure, operation status, etc.) from the station building (failure reception center) 20.

  A maintenance terminal 61 is externally attached to the V-ONU 52 installed in the MDF room (machine room) 55. As the maintenance terminal 61, unlike the wireless tag (RFID) described in the first embodiment, a form using a communication line (communication module) of a mobile phone is conceivable. A control device 71 is installed in the station building (failure reception center) 20 side. The control device 71 performs bidirectional communication wirelessly with the maintenance terminal 61 externally attached to the V-ONU 52.

  The maintenance terminal 61 reads a signal (determination result) for controlling the status display LED group 52-5 of the V-ONU 52 according to an instruction from the control device 71, and controls the failure state (/ the operation state if normal). Transmit to device 71. Alternatively, even if the instruction from the control device 71 is not received, when the maintenance terminal 61 detects a failure state, information regarding the same V-ONU situation may be transmitted to the control device 71. The point that the maintenance terminal 61 reads about the status of the V-ONU 52 is indicated by a block labeled “V-ONU status” in FIG. 3. Further, the point at which information is transmitted from the maintenance terminal 61 to the control device 71 is indicated by an arrow “V-ONU status information (upstream)” in FIG.

  The information transmitted to the control device 71 is the state of the LEDs 53a, 53b, and 53c of the state display LED group 52-5 of the V-ONU 52, as in the first embodiment described above. For example, if it is known that there is no input signal from the optical fiber 31 according to the information from the LEDs 53a of the status display LED group 52-5, the connection between the terminal of the optical fiber 31 and the V-ONU 52, the optical fiber The cutting | disconnection in the middle of 31 etc. can be considered.

  Further, if it is known that the failure state of the V-ONU 52 according to the information from the LED 53b of the state display LED group 52-5, the V-ONU 52 is replaced with another device that has not failed. Alternatively, for example, if the power OFF state is known in accordance with the information from the LED 53c of the status display LED group 52-5, it is conceivable to turn on the power switch or connect the power cable disconnected from the outlet. Furthermore, if all the information about the V-ONU 52 is normal, there is no failure until the V-ONU 52, and it is considered that the coaxial cable 54 is disconnected, the distributor 53 is broken, and the like. It is possible to deal with it more appropriately.

  In other words, it is possible to make a certain judgment as to what action should be taken according to these various situations before the maintenance staff is dispatched to the housing complex 50 where the failure has occurred on the remote station 20 side. Become. In particular, in a situation where a user of an individual household in the housing complex 50 receives a notification that “TV is no longer displayed”, the user can display the status of the V-ONU 52 installed in the MDF room 55 to the user. It is usually not easy to confirm the display of the LEDs 53a, 53b, and 53c of the LED group 52-5 and to tell them by telephone or the like. Therefore, the second embodiment is very useful in such a situation.

  FIG. 4 is a block diagram showing a connection relationship (configuration of the wireless maintenance monitoring system) between the V-ONU 52 and the maintenance terminal 61 according to the second embodiment. Since the V-ONU 52 corresponding to FIG. 2 has the same configuration, the same reference numerals are given and description thereof is omitted. The maintenance terminal 61 includes a control processing unit 61-1, a transmission / reception function unit (communication module) 61-2, and a power supply unit 61-3.

  The control processing unit 61-1 controls the entire operation of the maintenance terminal 61, and in particular, indicates a signal (determination result) for controlling the state display LED group 52-5 of the V-ONU 52, that is, the status of the V-ONU 52. The information is received and supplied to the transmission / reception function unit (communication module) 61-2. The transmission / reception function unit (communication module) 61-2 transmits information indicating the status of the V-ONU 52 supplied from the control processing unit 61-1, using radio waves of the mobile phone, and an instruction from the control device 71. Receive. The power supply unit 61-3 supplies power for driving the control processing unit 61-1 and the transmission / reception function unit (communication module) 61-2 of the maintenance terminal 61.

  As described above, also in the second embodiment, similarly to the first embodiment described above, the wiring for controlling the state display LED group 52-5 of the V-ONU 52 is branched, so that the maintenance terminal 61 can be easily connected. Since connection is possible, the maintenance terminal 61 can be easily attached without changing the internal configuration of the existing V-ONU 52. The power supply unit 61-3 of the maintenance terminal 61 is separate from the power supply unit 52-4 of the V-ONU 52, but the power of the maintenance terminal 61 is supplied from the power supply unit 52-4 of the V-ONU 52. You may make it do.

Next, the operation of the second embodiment will be described.
A situation in which a television program cannot be normally displayed occurs due to various factors such as a disconnection of the optical fiber 31, the coaxial cable 54, a failure of the V-ONU 52, the distributor 53, or the television receiver 13. In any of these cases, the user will contact (complaint) about the situation to the operator who performs the television distribution.

  In the V-ONU 52, the LED 53a is controlled to be turned on / off according to the determination result of the presence / absence of the input signal by the optical input signal receiving unit 52-1, and a signal corresponding to the determination result is a control processing unit of the maintenance terminal 61. 61-1. Similarly, the signal processing / control processing unit 52-2 determines the normality / abnormality of the signal to be processed or the normality / abnormality of all the functions of the V-ONU 52, and the video signal output unit 52-3 The LED 53b is controlled to be turned on / off according to the determination result of the normal output of the signal, and a signal corresponding to the determination result is supplied to the control processing unit 61-1 of the maintenance terminal 61. Further, the LED 53c is controlled to be turned on / off according to the determination result of the power supply of the V-ONU 52 by the power supply unit 52-4, and a signal corresponding to the determination result is a control process of the maintenance terminal 61. To the unit 61-1.

  In the TV distribution company that receives the notification from the user, the maintenance staff activates the control device 71 and transmits an instruction to the maintenance terminal 61 arranged in the apartment house 50 that has notified the complaint. In the maintenance terminal 61, a signal for receiving an instruction from the control device 71 by the transmission / reception function unit (communication module) 61-2, and controlling the LED group 52-5 for status display of the V-ONU 52 by the control processing unit 61-1. (Determination result) is read, and the failure state (/ the operation state if normal) is transmitted to the control device 71 by the transmission / reception function unit (communication module) 61-2.

  The maintenance staff in the station building 20 receives a signal (determination result) for controlling the status display LED group 52-5 of the V-ONU 52 by the control device 71 without going to the apartment 50, and the status display LED. The lighting / extinguishing state of the LEDs 53a, 53b, 53c of the group 52-5 is confirmed, and the failure state and the cause thereof are grasped. Then, the user is notified of the grasped failure state and a coping method assumed from the cause, or an appropriate maintenance staff is dispatched after identifying the cause of the failure to some extent.

  According to the second embodiment described above, similarly to the first embodiment, it is not necessary to dispatch maintenance personnel for grasping the failure state, and it is possible to remotely grasp the failure state and its cause. Further, as in the first embodiment, since it is not necessary to enter the MDF room 55 of the apartment house 50 in which the V-ONU 52 is installed, it is not necessary to exchange keys with an administrator required for entering the room. . Furthermore, since a certain degree of failure status can be grasped remotely, there is no need to dispatch inappropriate maintenance personnel, and it is possible to dispatch appropriate maintenance personnel after specifying the cause of the failure to some extent remotely.

C. Third Embodiment Next, a third embodiment of the present invention will be described.
The third embodiment is characterized in that the power OFF / ON (restart) function of the V-ONU 52 shared and installed for the apartment house is remotely controlled by wireless control.

  FIG. 5 is a block diagram showing a configuration of a video communication network system (wireless maintenance monitoring system) according to the third embodiment. The parts corresponding to those in FIG. In FIG. 5, a control device 72 operated by maintenance personnel is provided in the station building (failure reception center) 20. The control device 72 communicates wirelessly with the maintenance terminal 62 so that the maintenance terminal 62 installed in the apartment house 50 can be instructed to reset the V-ONU 52 by wireless transmission. In addition to the contact from the user who watches the television program in the apartment house 50, the control device 72 provides information on the status of the operation of the V-ONU 52 from the maintenance terminal 62 as in the second embodiment described above. It is also possible to receive with a wireless signal.

  In the apartment house 50, a maintenance terminal 62 is externally attached to the V-ONU 52 installed in the MDF room (machine room) 55. The maintenance terminal 62 has a function of turning on / off the power source of the V-ONU 52. When the maintenance terminal 62 receives a reset instruction signal from the control device 72 in the station (fault acceptance center) 20, the power source of the V-ONU 52 is turned off. By turning ON / ON, the V-ONU 52 is restarted (reset). The point where the V-ONU 52 is restarted from the maintenance terminal 62 is indicated by an arrow labeled “restart” in FIG.

  The maintenance staff standing by in the station building (failure reception center) 20 determines the information on the operation status of the V-ONU 52 received by the control device 72 by the communication from the user and the radio signal, and controls the control device 72. It operates to instruct a restart for controlling the power supply of the V-ONU 52 installed in the apartment house 50 to be turned off / on.

  When the maintenance person inputs an instruction to restart the V-ONU 52 to the control device 72, the control device 72 wirelessly transmits a reset instruction signal for instructing to turn on / off the power supply of the V-ONU 52. In FIG. 5, this radio signal transmission is indicated by an arrow labeled “V-ONU restart instruction (down)”. In addition, as the exchange of the radio signal here, for example, it is conceivable to use a mobile phone line and mount a mobile phone communication module in the V-ONU 52.

  In the third embodiment, if there is a complaint about a maintenance such as a TV program not being shown by a user of the housing complex 50 to a maintenance staff who is always waiting in the station (failure reception center) 20, The V-ONU 52 of the housing complex 50 is tried to be reset (restarted) by remote control from the inside (failure reception center) 20 and an immediate recovery is executed. In other words, the third embodiment provides a failure recovery system for the V-ONU 52 used in the video communication network system for apartment buildings.

  FIG. 6 is a block diagram showing a connection relationship (configuration of the wireless maintenance monitoring system) between the V-ONU 52 and the maintenance terminal 62 according to the third embodiment. Note that portions corresponding to those in FIG. 4 are denoted by the same reference numerals and description thereof is omitted. In FIG. 6, the V-ONU 52 includes a power supply control unit 52-6 as a difference from the configuration of the first and second embodiments described above. The power supply control unit 52-6 receives a reset instruction signal from the maintenance terminal 62, and controls whether to supply power to the V-ONU 52 from the power supply unit 52-4 or stop (power ON / OFF). By this control, the operation of the V-ONU 52 is reset.

  The maintenance terminal 62 includes a control processing unit 62-1, a transmission / reception function unit (communication module) 62-2, and a power supply unit 62-3. The control processing unit 62-1 controls the entire operation of the maintenance terminal 62 and controls the status display LED group 52-5 of the V-ONU 52 (determination result), that is, information indicating the status of the V-ONU 52. Receive and supply to the transmission / reception function unit (communication module) 61-2. In addition, the control processing unit 62-1 receives the reset instruction signal received from the control device 72 by the transmission / reception function unit (communication module) 62-2, and instructs the power supply control unit 52-6 of the V-ONU 52 to supply power. The V-ONU 52 is reset (restarted) by turning on / off.

  The transmission / reception function unit (communication module) 62-2 transmits information indicating the status of the V-ONU 52 supplied from the control processing unit 62-1 using radio waves of the mobile phone, and resets from the control device 72. An instruction signal is received. The power supply unit 62-3 supplies power for driving the control processing unit 62-1 and the transmission / reception function unit (communication module) 62-2 of the maintenance terminal 62.

  Thus, also in the third embodiment, as in the first and second embodiments described above, the maintenance terminal 62 is branched by branching the wiring for controlling the status display LED group 52-5 of the V-ONU 52. Since the power supply control unit 52-6 may be configured as an additional function of the power supply unit 52-4, the maintenance terminal 62 is hardly changed without almost changing the internal configuration of the existing V-ONU 52. Can be easily installed. The power supply unit 62-3 of the maintenance terminal 62 is separate from the power supply unit 52-4 of the V-ONU 52, but the power of the maintenance terminal 62 is supplied from the power supply unit 52-4 of the V-ONU 52. You may make it do. However, when the power of the maintenance terminal 62 is supplied from the V-ONU 52 in this way, it must be received directly from the power supply unit 52-4 without passing through the power supply control unit 52-6.

Next, the operation of the third embodiment will be described.
A situation in which a television program cannot be normally displayed occurs due to various factors such as a disconnection of the optical fiber 31, the coaxial cable 54, a failure of the V-ONU 52, the distributor 53, or the television receiver 13. In any of these cases, the user will contact (complaint) about the situation to the operator who performs the television distribution.

  In the V-ONU 52, the LED 53a is controlled to be turned on / off according to the determination result of the presence / absence of the input signal by the optical input signal receiving unit 52-1, and a signal according to the determination result is a control processing unit of the maintenance terminal 62. 62-1. Similarly, the signal processing / control processing unit 52-2 determines the normality / abnormality of the signal to be processed or the normality / abnormality of all the functions of the V-ONU 52, and the video signal output unit 52-3 The LED 53b is controlled to be turned on / off according to the determination result of the normal output of the signal, and a signal corresponding to the determination result is supplied to the control processing unit 62-1 of the maintenance terminal 62. Furthermore, the LED 53c is controlled to be turned on / off according to the determination result of the power supply of the V-ONU 52 by the power supply unit 52-4, and a signal corresponding to the determination result is a control process of the maintenance terminal 62. To the unit 62-1.

  In the television distribution company that receives the notification from the user, the maintenance staff activates the control device 72 and transmits an instruction to the maintenance terminal 62 disposed in the apartment house 50 that has notified the complaint. In the maintenance terminal 62, a signal for receiving the instruction from the control device 72 by the transmission / reception function unit (communication module) 62-2 and controlling the LED group 52-5 for status display of the V-ONU 52 by the control processing unit 62-1. (Determination result) is read, and the failure state (/ the operation state if normal) is transmitted to the control device 72 by the transmission / reception function unit (communication module) 62-2.

  The maintenance staff in the station building 20 receives a signal (determination result) for controlling the status display LED group 52-5 of the V-ONU 52 by the control device 72 without going to the apartment 50, and the status display LED. The lighting / extinguishing state of the LEDs 53a, 53b, 53c of the group 52-5 is confirmed, and the failure state and the cause thereof are grasped. Then, it is possible to notify the user about a certain countermeasure and to dispatch an appropriate maintenance staff after identifying the cause of the failure to some extent. For example, if there is a contact from the manager of the apartment house and the LED 53c corresponding to the power-on is not lit, the manager uses the power cord of the V-ONU 52 in the manager room (MDF room) 55 as an outlet. You can ask them to plug in. Alternatively, when the LED 53a corresponding to the input reception signal is lit and the image signal output LED 53b is unlit, the V-ONU 52 itself can be clearly judged to be in an abnormal state, so another V-ONU 52 is immediately given to the maintenance personnel. Dispatched to the requested apartment house, the failed V-ONU 52 can be replaced with another V-ONU 52 that has been brought in and recovered. Further, in the case of an abnormal operation in many electronic devices, the maintenance staff in the station building 20 sends a reset instruction signal for resetting (restarting) the V-ONU 52 as necessary. Send from.

  In the maintenance terminal 62, when the reset instruction signal is received from the control device 72 by the transmission / reception function unit (communication module) 62-2, the control processing unit 62-1 is connected to the power supply control unit 52-6 of the V-ONU 52. Instruct. The power supply control unit 52-6 that has received the reset instruction resets (restarts) the V-ONU 52 by performing ON / OFF control of the power supply of the power supply unit 52-4. As a result, as normally found in many electronic devices, the V-ONU 52 can be returned to a normal operation by being restarted.

  According to the third embodiment described above, similarly to the first and second embodiments, it is not necessary to dispatch maintenance personnel for grasping the failure state, and it is possible to remotely grasp the failure state and its cause. Further, as in the first and second embodiments, since it is not necessary to enter the MDF room 55 of the apartment house 50 in which the V-ONU 52 is installed, it is also possible to exchange keys with the manager required for entering the room. It becomes unnecessary. In addition, since a certain degree of failure status can be grasped remotely, there is no need to dispatch inappropriate maintenance personnel, and it is possible to dispatch appropriate maintenance personnel after specifying the cause of the failure to some extent remotely. Furthermore, since the OFF / ON (restart) function can be remotely controlled with respect to the power supply of the V-ONU 52, in the event of a failure, a maintenance staff is dispatched to the site by instructing the restart remotely. The V-ONU 52 can be recovered earlier than the corresponding failure recovery.

D. Fourth Embodiment Next, a fourth embodiment of the present invention will be described.
By duplicating the V-ONU 52 that is shared and installed for the housing complex in advance, in the case of a failure, the duplicated V-ONU 52 is switched and the failure time (the user is It is characterized by shortening the time during which television images cannot be viewed: in other words, the time required for recovery.

  FIG. 7 is a block diagram showing the configuration of the video communication network system according to the fourth embodiment. Note that portions corresponding to those in FIG. 5 and the like are denoted by the same reference numerals and description thereof is omitted. In FIG. 7, a control device 73 operated by maintenance personnel is provided in the station building (failure reception center) 20. The control device 73 performs wireless communication with the maintenance terminal 63 so that the maintenance terminal 63 installed in the apartment house 50 can be instructed to switch the V-ONUs 52a and 52b by wireless transmission. Further, the control device 73 maintains information on the situation in which the V-ONU 52 is operating, as in the second and third embodiments described above, in addition to the communication from the user who views the television program in the apartment house 50. It can also be received by a radio signal from the terminal 63.

  In the housing complex 50, the MDF room (machine room) 55 is provided with V-ONUs 52a and 52b composed of an operation system that is normally used and a standby system that is used in an emergency. A common maintenance terminal 63 is externally attached to the V-ONUs 52a and 52b. The maintenance terminal 63 has a function of switching between the V-ONUs 52a and 52b. When receiving the switching instruction signal from the control device 73 in the station building (failure reception center) 20, the maintenance terminal 63 switches the V-ONUs 52a and 52b. ing.

(1) Automatic switching at the time of failure The duplicated V-ONUs 52a and 52b are a standby system that replaces the operating system that is normally used and an emergency system. When the operating V-ONU 52a fails, the standby system automatically To V-ONU 52b. Then, at the time of failure, the maintenance terminal 63 of the V-ONU 52 notifies the control device 73 in the station building (failure reception center) 20 that the V-ONUs 52a and 52b have been switched. In the automatic switching at the time of failure, what is necessary is that the failure detection and the switching operation are linked in the V-ONUs 52a and 52b.

  Further, as an advantage of automatic switching at the time of failure, it is possible to perform switching in a short time (suppressing the influence on the user at the time of failure). Further, the maintenance terminal 63 eliminates the need to give instructions to the maintenance terminal 63 of the V-ONUs 52a and 52b from the control device 73 in the station building (failure reception center) 20 for confirming the failure state (/ normal operation status). Therefore, only one-way communication (up) to the control device 73 in the station building (failure reception center) 20 can be performed.

(2) Manual switching at the time of failure As another switching method, the maintenance terminal 63 notifies the controller 73 in the station building (failure reception center) 20 that the active V-ONU 52a has failed. The control device 73 of the failure reception center) 20 is remotely switched to the backup V-ONU 52b. The manual switching at the time of failure requires a function of remotely switching the V-ONU 52a of the apartment 50 from the control device 73 in the station building (failure acceptance center) 20 to the standby V-ONU 52b.

  In addition, compared with the above-described automatic switching at the time of failure, the failure time (the time during which a user of each household in an apartment house cannot watch television) is somewhat longer. On the other hand, the advantage of manual switching at the time of failure is that the detection function does not operate normally due to failure. For example, even when there is an application (complaint) from the user, By switching to the V-ONU 52b, the video distribution service can be continued and recovery measures can be implemented during that time.

(3) Always two-system operation Further, as another switching method, two systems of V-ONUs 52a and 52b are always operated, and the respective signals are synthesized and used. In the two-system operation at all times, the two-system V-ONUs 52a and 52b always convert the program information from the television stations transmitted by the optical fiber 31 into video signals and transmit them to the households via the coaxial cable 54. Become. Therefore, as an advantage of the two-system operation at all times, even if one V-ONU 52a (or 52b) fails, the video signal is output by the other normal V-ONU 52b (or 52a). No time is required.

  The only concern is that ghosting may occur in analog television due to signal synthesis (it is difficult to see multiple identical images on one screen in a television program). However, in a digitized television image, a ghost that causes a problem in analog television does not occur.

  In the above (3) two-system operation at all times, when one of the two V-ONUs 52a and 52b breaks down, the V-ONU 52a, 52b has one V with respect to the control device 73 in the station building (failure reception center) 20. -Maintenance is performed so that the two systems normally operate normally by notifying that the ONU 52a (or V-ONU 52b) has failed.

  FIG. 8 is a block diagram showing a connection relationship between the V-ONUs 52a and 52b and the maintenance terminal 63 according to the fourth embodiment. Note that portions corresponding to those in FIG. 6 are denoted by the same reference numerals and description thereof is omitted. In FIG. 8, V-ONUs 52a and 52b are duplicated, and these two V-ONUs 52a and 52b are each configured in the same manner as the V-ONU 52 of the third embodiment as described above. Yes. Here, the optical fiber 31 for transmitting the TV video signal distributed to the apartment 50 is branched and connected as an input of each of the duplexed V-ONUs 52a and 52b. The coaxial cables 54 that are the outputs of the ONUs 52a and 52b are once aggregated and then distributed to each household of the apartment house 50.

  As in the third embodiment, the maintenance terminal 63 includes a control processing unit 63-1, a transmission / reception function unit (communication module) 63-2, and a power supply unit 63-3. The control processing unit 63-1 controls the entire operation of the maintenance terminal 63, and controls the status display LED group 52-5 of the V-ONU 52 (determination result), that is, information indicating the status of the V-ONU 52. Receive and supply to transmission / reception function unit (communication module) 63-2.

  In addition, in the case of automatic switching at the time of failure, the control processing unit 63-1 automatically switches the V-ONUs 52a and 52b at the time of failure, and the transmission / reception function unit 63-2 causes the inside of the station (failure reception center) 20 to The control device 73 is notified of the switching. For example, when the V-ONU 52a fails and automatically switches to the V-ONU 52b, the power supply to the power supply control unit 52-6 of the V-ONU 52a is turned off and the power is supplied to the V-ONU 52b. Set to ON.

  Further, in the case of manual switching at the time of failure, the control processing unit 63-1 displays a signal (determination result) for controlling the LED group 52-5 for state display of the V-ONU 52 at the time of failure, that is, the status of the V-ONU 52. The transmission / reception function unit 63-2 notifies the control device 73 in the station building (failure reception center) 20 and the switching instruction signal from the control device 73 in the station building (failure reception center) 20. The V-ONUs 52a and 52b are switched accordingly.

  The transmission / reception function unit (communication module) 63-2 uses information on the status of the V-ONUs 52a and 52b supplied from the control processing unit 63-1, or the automatic switching at the time of failure, using radio waves from the mobile phone. Notifies the control device 73 in the station building (failure reception center) 20 that the V-ONUs 52a and 52b have been switched. Further, the transmission / reception function unit (communication module) 63-2 receives a switching instruction signal from the control device 73 in the station building (failure reception center) 20 in the case of manual switching at the time of failure. The power supply unit 63-3 supplies power for driving the control processing unit 63-1 and the transmission / reception function unit (communication module) 63-2 of the maintenance terminal 63.

  Similarly to the third embodiment, when receiving a reset instruction signal from the transmission / reception function unit (communication module) 63-2, the control processing unit 63-1 instructs the power supply control unit 52-6 of the V-ONUs 52a and 52b. Then, by turning the power ON / OFF, it is possible to switch to one of the two V-ONUs 52a, 52b, to operate both, or to stop the operation of the abnormal V-ONU. It becomes possible.

  As described above, also in the fourth embodiment, similarly to the first, second, and third embodiments described above, by branching the wiring that controls the state display LED group 52-5 of the V-ONU 52, Since it can be easily connected to the maintenance terminal 63 and the power supply control unit 52-6 may be configured as an additional function of the power supply unit 52-4, the internal configuration of the existing V-ONU 52 is hardly changed. The maintenance terminal 63 can be easily attached. Although the power supply unit 63-3 of the maintenance terminal 63 is separated from the power supply unit 52-4 of the V-ONU 52, the power of the maintenance terminal 63 is supplied from the power supply unit 52-4 of the V-ONU 52. You may make it do. However, when the power of the maintenance terminal 63 is supplied from the V-ONU 52 in this way, it must be received directly from the power supply unit 53-4 without passing through the power supply control unit 53-6.

Next, the operation of the fourth embodiment will be described.
A situation in which a television program cannot be normally displayed occurs due to various factors such as a disconnection of the optical fiber 31, the coaxial cable 54, a failure of the V-ONU 52, the distributor 53, or the television receiver 13.

  In the case of automatic switching at the time of failure, when the active V-ONU 52a fails, the control processing unit 63-1 of the maintenance terminal 63 issues an instruction to the power supply control unit 52-6 of the V-ONU 52a and sends it to the V-ONU 52a. The V-ONU 52b is switched to the V-ONU 52b by instructing the power supply control unit (not shown) of the V-ONU 52b to turn on the power to the V-ONU 52b. Then, the maintenance terminal 63 notifies the control device 73 in the station building (failure acceptance center) 20 that the V-ONUs 52a and 52b have been switched and information indicating the status of the V-ONUs 52a and 52b. For information on whether the active V-ONU 52a has failed or information on the status of the V-ONUs 52a and 52b, the LEDs 53a and 53b of the status display LED groups 52-5 of the V-ONUs 52a and 52b, This can be confirmed by turning on / off 53c. If all these LEDs 53a, 53b and 53c are lit, it can be considered that the V-ONUs 52a and 52b are operating normally, and it can be understood that they are not in a failure state. However, for example, if all the LEDs 53a, 53b, 53c of one V-ONU 52b are lit, but only the LED 53b of the other V-ONU 52a is turned off, it can be understood that a failure has occurred.

  The maintenance staff in the station building 20 does not go to the apartment 50, but the controller 73 switches the V-ONUs 52a and 52b, and the status display LED groups 52-5 of the V-ONUs 52a and 52b. LED 53a, 53b, 53c is turned on / off, and the failure state and the cause thereof are grasped. Then, after identifying the cause of the failure to some extent, an appropriate maintenance staff is dispatched to maintain the failed V-ONU 52a.

  Further, in the case of manual switching at the time of failure, if the active V-ONU 52a breaks down, the maintenance terminal 63 causes a failure to the control device 73 in the station (failure reception center) 20, or V-ONUs 52a, 52b. Information indicating the status of

  The maintenance staff in the station building 20 does not go to the apartment 50, and the controller 73 sets the LED 53a, 53b, 53c of the LED 52a, 52b for status display of each of the V-ONUs 52a, 52b. Check. The maintenance staff operates the control device 73 to transmit a switching instruction signal for switching to the standby V-ONU 52b remotely to the maintenance terminal 63.

  In the maintenance terminal 63, when the switching instruction signal is received by the transmission / reception function unit 63-2, the control processing unit 63-1 of the maintenance terminal 63 issues an instruction to the power supply control unit 52-6 of the V-ONU 52a to the V-ONU 52a. The V-ONU 52b is switched to the V-ONU 52b by instructing the power supply control unit (not shown) of the V-ONU 52b to turn on the power to the V-ONU 52b. Then, after identifying the cause of the failure to some extent, an appropriate maintenance staff is dispatched to maintain the failed V-ONU 52a.

  In the case of the two-system operation at all times, the failure switching operation can be performed even if one of the V-ONUs 52a (or 52b) fails by operating the two systems of V-ONUs 52a and 52b at all times. Without being required, the video signal is continuously output by the other normal V-ONU 52b (or 52a). However, the power supply of one V-ONU 52a (or 52b) in which a failure has occurred is turned OFF so that an abnormal signal is not output to the coaxial cable 54. After that, a maintenance staff is dispatched to deal with replacement of the stopped V-ONU 52a (or 52b).

  According to the fourth embodiment described above, as in the first to third embodiments, it is not necessary to dispatch maintenance personnel for grasping the failure state, and it is possible to remotely grasp the failure state and its cause. Further, since it is not necessary to enter the MDF room 55 of the apartment house 50 in which the V-ONU 52 is installed, it is not necessary to exchange keys with an administrator required for entering the room. In addition, when two V-ONUs are deployed and a failure occurs, the failure time (the time during which the user cannot watch TV images due to the failure) is switched by switching to a normal V-ONU automatically or manually. Shortening can be achieved.

  As described above, the V-ONU used in the video communication network system for the apartment house distributes the information of the television program distributed from the office building by the optical fiber to the video signal to each household through the coaxial wiring. The V-ONU is installed in an MDF room such as a machine room of an apartment house or a management room. If the V-ONU breaks down, it will have a major impact, such as the television of all households in the apartment house not being shown. According to the present invention, maintenance monitoring of a V-ONU, switching with a duplex configuration, and the like can be easily realized remotely, and the failure time can be greatly shortened.

13 TV receiver 31 Optical fiber 50 Apartment house 52, 52a, 52b V-ONU
52-1 Optical Input Signal Receiving Unit 52-2 Signal Processing / Control Processing Unit 52-3 Video Signal Output Unit 52-4 Power Supply Unit 52-5 Status Display LED Group 52-6 Power Supply Control Units 53a, 53b, 53c LED
53 Distributor 54 Coaxial cable 55 MDF room of apartment house (machine room, management room)
60 Wireless terminal 60-1, 61-1, 62-1, 63-1 Control processing unit 60-2 Transmission function unit 60-3, 61-3, 62-3, 63-3 Power supply unit 61, 62, 63 Maintenance terminal 61-2, 62-2, 63-2 Transmission / reception function unit 70 Monitoring device 71, 72, 73 Control device

Claims (9)

Maintenance used for the video communication network system for collective housing that distributes information including video through the terminating device installed in the housing of the optical fiber subscriber line, and maintenance of the terminating device and monitoring of the operation status A monitoring system,
Control processing means for collecting operation status information indicating the operation status of the terminal device;
A wireless terminal comprising: terminal terminal side transmission means for wirelessly transmitting the operation status information collected by the control processing means;
The monitoring apparatus side receiving means for receiving the operation status information transmitted from the terminal terminal side transmitting means outside the apartment house;
A maintenance monitoring system comprising: a monitoring device comprising: information presenting means for presenting operation status information received by the monitoring device-side receiving means. The monitoring device
A monitoring device side transmission means for transmitting an instruction requesting the operation status of the termination device to the wireless terminal,
The wireless terminal is
The operation status information indicating the operation status of the termination device collected by the control processing unit is transmitted by the termination terminal side transmission unit wirelessly in response to an instruction from the monitoring device side transmission unit. Item 2. The maintenance monitoring system according to Item 1. The monitoring device
A monitoring device side transmission means for transmitting a reset instruction signal for resetting the termination device to the wireless terminal;
The wireless terminal is
The maintenance monitoring system according to claim 1, further comprising a reset unit that resets the termination device when receiving a reset instruction signal from the monitoring device-side transmission unit. The reset means includes
4. The maintenance monitoring system according to claim 3, wherein when the reset instruction signal is received from the monitoring device side transmission unit, the termination device is reset by controlling on / off of the power supply of the termination device. 5. The terminator is
A first terminating device that operates normally and a second terminating device that operates when the first terminating device fails;
The wireless terminal is
A failure detection means for detecting that a failure has occurred in the first termination device, based on operation status information indicating an operation status of the termination device;
Switching means for stopping the operation of the first termination device and operating the second termination device when the failure detection means detects that a failure has occurred in the first termination device. The maintenance monitoring system according to any one of claims 1 to 4, wherein The wireless device includes:
6. When the switching means switches from the first termination device to the second termination device, the termination terminal side transmission means notifies the monitoring device of the switching. Maintenance monitoring system. The terminator is
A first terminating device that operates normally and a second terminating device that operates when the first terminating device fails;
The wireless terminal is
A failure detection means for detecting that a failure has occurred in the first termination device based on operation status information indicating an operation status of the termination device;
When the failure detection means detects that a failure has occurred in the first termination device, the termination terminal side transmission means notifies the monitoring device of the occurrence of the failure,
The monitoring device
When the occurrence of the failure is received by the monitoring device side receiving means, the monitoring device side transmitting means for stopping the operation of the first termination device and transmitting a switching instruction for operating the second termination device is provided. ,
The wireless terminal is
A wireless terminal side receiving means for receiving a switching instruction from the monitoring device side transmitting means;
5. A switching means for switching operation from the first terminal device to the second terminal device when receiving a switching instruction by the wireless terminal side receiving means. The maintenance monitoring system described in Crab. The terminator is
A first termination device and a second termination device;
Information including an input video is branched and supplied to the first termination device and the second termination device, and video signals output from the first termination device and the second termination device are combined. The maintenance monitoring system according to claim 1, wherein the maintenance monitoring system outputs the output. Maintenance used for the video communication network system for collective housing that distributes information including video through the terminating device installed in the housing of the optical fiber subscriber line, and maintenance of the terminating device and monitoring of the operation status A monitoring method,
Collecting operation status information indicating an operation status of the termination device by a wireless terminal;
Transmitting the collected operation status information wirelessly by a wireless terminal;
Receiving the operation status information transmitted from the wireless terminal by the monitoring device outside the housing complex;
Presenting the received operation status information. A maintenance monitoring method comprising:

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