JP5044388B2 - Optical transmission system - Google Patents

Description

  The present invention relates to an optical transmission device system including a parent device and a child device of an optical transmission device, and in particular, simplifies setting work required for the parent device and the child device when constructing the optical transmission device system. Regarding technology.

A wireless system that performs wireless communication between mobile stations such as mobile phones via a wireless base station is realized. However, each mobile station cannot perform wireless communication in a dead zone such as an interior of a building or an underground passage where radio waves from a wireless base station do not reach.
Therefore, an optical transmission device slave unit (hereinafter abbreviated as a slave unit) equipped with an antenna for wireless communication is installed in various places in the dead zone, and the optical transmission device master unit (hereinafter referred to as the following) connected to each slave unit by an optical cable. By connecting a base station) to a wireless base station, an optical transmission apparatus system is constructed, so that wireless communication can be performed even when each mobile station is in a dead zone.

  Here, as an invention related to the optical transmission device system, an invention that allows the master station device (master device) side to identify the type of slave station device (slave device) on the standard (see Patent Document 1), with a small number of telephone lines There has been proposed an invention (see Patent Document 2) that makes it possible to report a status from each master station device to the monitoring control terminal.

JP 2007-180941 A JP 2007-158794 A

  A conventional setting operation performed for each device of the parent device and the child device when the optical transmission device system is constructed will be described. For convenience of explanation, the present invention will be described with reference to FIG. 1 according to an embodiment of the present invention, but the present invention is not intended to be unnecessarily limited.

FIG. 1 shows a schematic configuration of a wireless system having an optical transmission apparatus system.
Each mobile station 1 represented by a mobile phone can perform wireless communication via the wireless base station 5, and the wireless base station 5 selects a wireless network control device 6 for controlling the wireless network and a communication path. It is connected to the network 8 through an exchange 7 to be performed. In addition, the base unit 3 of the optical transmission device is installed so as to be communicable with the radio base station 5, and a plurality of handset units 2 of the optical transmission device having a radio antenna are installed in various places that become the dead zone of the radio base station 5, Each slave unit 3 is connected to the master unit 3 directly by an optical cable or indirectly through another slave unit 3. The optical transmission system composed of the master unit 3 and the slave unit 2 enables wireless communication even when each mobile station 1 is in the dead zone of the radio base station 5. The master unit 3 is connected to the network 8 via a connection device 4 such as an ISDN (Integrated Services Digital Network) router, and can be remotely controlled by a remote monitoring device 9 connected to the network 8.

Conventionally, when constructing an optical transmission device system, a construction worker installs each device of the optical transmission device main unit 3 and the sub unit 2 according to the system configuration drawing, and then checks the connection state of the remote monitoring device 9. Then, the connection state of each device is read out and displayed on the screen, and the display content is checked by comparing it with the system configuration drawing.
Then, when the construction worker can confirm that the system is configured as shown in the system configuration drawing, a maintenance tool or the like is connected to the master unit 3 and all the slave units 2 of the optical transmission apparatus, and various types are individually set. The device information (station name, IP address, installation location, etc.) was set.
However, such information setting work by the conventional method may cause an operation error of the construction worker (missing alarm mask setting / cancellation, missing setting of station information, etc.), and the setting work takes time. There was a problem.

  The present invention has been made in view of the above-described conventional circumstances, and performs operation of setting work at the time of installing the master unit and the slave unit so as to autonomously set information for the master unit and the slave unit of the optical transmission apparatus. The purpose is to propose a technique capable of preventing mistakes and simplifying the setting work.

The present invention provides an optical transmission apparatus system in which a control apparatus and a master unit of an optical transmission apparatus are connected to be communicable, and the master unit and a slave unit of the optical transmission apparatus are connected to be capable of optical communication. A connection state notification means for notifying the connection state of the slave unit from the master unit and the slave unit side to the control unit according to the request of the master unit, and direct or plural to the master unit according to the request from the control unit From the control device, the alarm mask setting means for canceling the alarm mask in all the slave units indirectly connected in series and setting the alarm mask in the slave unit connected to the terminal with respect to the master unit; Device information setting means for setting predetermined device information for the parent device and all the child devices connected to the parent device directly or indirectly in series in response to the request With features To have.
Further, a configuration information setting means for setting system configuration information for the parent device may be further provided in response to a request from the control device.

  According to the present invention, since the setting process for each device of the parent device and the child device is performed autonomously, it is possible not only to improve the work efficiency of the construction worker at the time of installation of each device, but also an operation error. (Alarm mask setting / release omission, station information setting omission, etc.) can also be reduced.

The present invention will be specifically described with reference to the drawings.
FIG. 1 shows a schematic configuration of a wireless system having an optical transmission apparatus system according to an embodiment of the present invention.
Each mobile station 1 represented by a mobile phone can perform wireless communication via the wireless base station 5, and the wireless base station 5 selects a wireless network control device 6 for controlling the wireless network and a communication path. It is connected to the network 8 through the exchange 7 to be performed. In addition, the base unit 3 of the optical transmission apparatus is installed so as to be communicable with the radio base station 5, and a plurality of the slave units 2 of the optical transmission apparatus having a radio antenna are installed in various places that become the dead zone of the radio base station 5, Each slave unit 3 is connected to the master unit 3 directly by an optical cable or indirectly through another slave unit 3. The optical transmission system composed of the master unit 3 and the slave unit 2 enables wireless communication even when each mobile station 1 is in the dead zone of the radio base station 5. The master unit 3 is connected to the network 8 via a connection device 4 such as an ISDN router, and can be remotely controlled by a remote monitoring device (control device) 9 connected to the network 8.

2 and 3 are functional block diagrams of the parent device 3 and the child device 2 according to this example.
The downlink communication from the radio base station 5 to the mobile station 1 will be briefly described.
When the base unit 3 receives a radio signal transmitted from the radio base station 5 to the mobile station 1 by the radio I / F unit 3 and the radio transmission / reception unit 32, the base unit 3 converts the radio signal into an optical signal by the optical signal conversion unit 35. The data is transmitted to the slave unit 2 of the optical transmission apparatus connected to the master unit 3. When receiving the optical signal from the master unit 3 by the optical I / F unit 21, the slave unit 2 converts the optical signal into a radio signal by the optical signal conversion unit 22, and sends it out by the wireless transmission / reception unit 23 and the wireless amplification unit 24. When another slave unit 2 is connected to the subsequent stage of the slave unit 2 (the terminal side when viewed from the master unit 3), the received optical signal is transmitted to the other slave unit 2 and the same Let the process do.

The uplink communication from the mobile station 1 to the radio base station 5 will be briefly described.
When the wireless signal transmitted from the mobile station 1 to the wireless base station 5 is received by the wireless amplifying unit 24 and the wireless transmitting / receiving unit 23, the slave unit 2 converts the optical signal into an optical signal by the optical signal converting unit 22. The F unit 21 transmits the data to the parent device 3 or the child device 2 at the preceding stage (the parent device 3 side). In addition, the slave unit 2 that has received the optical signal from the downstream slave unit 2 transmits the received optical signal to the master unit 3 or the upstream slave unit 2. When receiving the optical signal from the slave unit 2, the base unit 3 converts the optical signal into a radio signal by the optical signal conversion unit 35, and transmits the radio signal to the radio base station 5 by the radio transmission / reception unit 32 and the radio I / F unit 3.

  The base unit 3 of this example is communicably connected to the remote monitoring device 9 via the external device I / F unit 33, and is connected to the internal volatile memory 36 and the non-volatile memory 37 in response to a request from the remote monitoring device 9. A maintenance monitoring control unit 34 that performs setting processing of configuration information related to itself is provided, and the slave unit 2 of this example is stored in the internal volatile memory 26 or the nonvolatile memory 27 in response to a request from the remote monitoring device 9. The maintenance monitoring control unit 25 is configured to perform configuration information setting processing for the self.

Here, the base unit 3 of this example is provided with a plurality (N in this example) of connection ports, and a plurality of slave units 2 can be cascade-connected to each port in series.
FIG. 4 shows a connection example of the parent device 3 and the child device 2. According to the figure, three slave units 2 (# 11, # 12, # 13) are connected in series to the first port (Port No. 1) of the master unit 3, and are connected to the second port (Port No. 2). Is connected in series with two slave units 2 (# 21, # 22), and M slave units 2 (# N1, # N2, # N3,..., #NM are connected to the Nth port (Port No. N). ) Are connected in series. That is, the number of stages of the first port is 3 and the slave unit 2 (# 13) is the final stage, the number of stages of the second port is 2, the slave unit 2 (# 22) is the final stage, and the number of stages of the Nth port Is M and handset 2 (#NM) is the last stage.

FIG. 5 exemplifies a configuration information management table input in the remote monitoring device 9, and configuration information setting processing for the parent device 3 and the child device 2 is performed based on the setting contents.
In the configuration information management table of this example, in addition to the “number of connected slave units” that is the number of slave units 2 connected directly or indirectly to the master unit 3, “slave unit ID” of each slave unit 2 , “Device name”, “installed address”, “IP address”, “connection presence / absence” and other information related to each child device 2, “parent device ID”, “device name”, “installed address”, Information related to the parent device 3 such as “IP address” is set by the construction worker according to the system configuration drawing. These pieces of configuration information include information (“number of connected slave units”, “slave unit IDs”, “connection presence / absence”) indicating information that each device should originally exist, and information to be set for each device (“device name”). ”,“ IP address ”,“ installation location ”) and the like. Note that these are merely examples, and various other configuration information can be set.

  Here, it is sufficient that the configuration information management table is input before the configuration information setting process for the master unit 3 and the slave unit 2 is started, and the remote monitoring device 9 and the master unit 3 can communicate with each other. There is no need to do this while connected to. And, of course, a construction worker operates and inputs input devices such as a keyboard and a mouse provided in the remote monitoring device 9 on the spot, for example, the contents inputted in advance by the remote monitoring device 9 are CSV or the like. In this case, the input content is restored from the file, or the content input by another device is taken into the remote monitoring device 9 via an external storage medium or a communication line, for example. It can also be.

FIG. 6 illustrates a connection state management table that the parent device 3 has.
In the connection status management table of this example, in addition to the “number of connected slave units” that is the number of the slave units 2 that are directly or indirectly connected to the master unit 3, the “slave unit ID” of each slave unit 2 is also included. "," Connection state ", etc. are set. Note that the setting contents of the connection state management table are updated as needed according to the power-on of each device of the parent device 3 and the child device 2, as will be described later.

FIG. 7 illustrates an alarm mask setting management table included in the handset 2.
In the alarm mask setting management table of this example, in addition to the “number of connected slave units” that is the number of all the slave units 2 (including self) connected to the master unit 3 of the slave unit 2, each slave unit 2 “Slave device ID”, “Mask setting presence / absence” and the like are set.

The configuration information setting process for each device of the parent device 3 and the child device 2 will be described according to the processing sequence shown in FIG.
First, the construction worker sets various pieces of configuration information in the configuration information management table of the remote monitoring device 9 according to the system configuration drawing (process Z11).
Then, after the setting of the configuration information management table is completed, each device is in response to an instruction that the construction worker presses a configuration information setting start button or the like displayed on the display screen of the remote monitoring device 9. The configuration information setting process for is started (process Z12).

When the configuration information setting process starts, the remote monitoring device 9 first periodically transmits the connection state information to the timer T1 for managing the time limit for collecting the connection state information from the parent device 3 and the parent device 3. A timer T2 for requesting (= sending a configuration information read request message) is started, and a configuration information read request message is sent to the parent device 3 (process Z13).
When the base unit 3 receives the configuration information read request message, the maintenance monitoring control unit 34 includes information indicating the current connection state represented by the connection state management table in the configuration information read response message, and the remote monitoring device 9. To send.

When the remote monitoring device 9 receives the configuration information read response message from the parent device 3, the remote monitoring device 9 displays the current connection state indicated by the information included in the configuration information read response message and the connection state that should originally exist. A collection completion check for comparison is performed (process Z14), and if they match, the timers T1 and T2 are stopped (process Z15), and the time limit for setting the alarm mask in each slave unit 2 is managed. Timer T3 is started (process Z16).
On the other hand, if they do not match, the system waits until the next configuration information read request message is sent (= time-up time of timer T2), and resets timer T2 when the timing arrives and reads the configuration information. The request message is sent again, and the collection completion check based on the response message is performed (process Z14).
If the timer T1 expires without confirming the match between the current connection state and the connection state that should exist, the fact is displayed on the display screen of the remote monitoring device 9 and the process is interrupted. At this time, the timer T2 is also stopped (process Z15).

  Here, on each device side of the parent device 3 and the child device 2, if the connection state between the parent device 3 and the child device 2 changes due to power ON of each device (processing Z31, Z51 to Z53), the parent device 3 The contents of the connection state management table included in is updated as needed (processes Z32 to Z35). The details of this processing will be specifically described below.

  When the power of the parent device 3 is turned on (process Z31), the maintenance monitoring control unit 34 reads the connection state management table from the nonvolatile memory 37 to the volatile memory 36 (process Z32). The connection state management table at the time of reading indicates that the “connection state” item of each slave unit 2 indicates that the master unit 3 is not connected to the slave unit 2 (that is, a state where communication is not possible). It is in the initial state with “Connection” set.

  Thereafter, when the power of the slave unit 2 (# 11) is turned on (process Z51), the slave unit 2 including its own slave unit ID (recorded in the nonvolatile memory 27) is connected by the maintenance monitoring control unit 25 of the slave unit 2 A state change notification message is sent to base unit 3. When the maintenance monitoring control unit 34 of the base unit 3 receives the slave unit connection state change notification message, the maintenance monitoring control unit 34 sets the “connection state” corresponding to the slave unit ID included in the slave unit connection state change notification message. The item is changed (updated) to “connected” indicating that the parent device 3 is connected to the child device 2 (that is, in a communicable state).

  Similarly, when the power of the slave unit 2 (# 13) is turned on (process Z52), a slave unit connection state change notification message including the slave unit ID is sent to the master unit 3, and the connection state of the master unit 3 is transmitted. When the management table is updated (process Z34) and the power of the slave unit 2 (#NM) is turned on (process Z53), a slave unit connection state change notification message including the slave unit ID is sent to the master unit 3. The connection state management table of the parent device 3 is updated (process Z35).

Further, the master unit 3 monitors whether or not the communication state with each slave unit 2 is maintained, and the slave unit 2 is disconnected due to power-off of the slave unit 2, poor optical cable connection, failure of the slave unit 2, etc. 2 is changed (updated) to “not connected” in the “connected state” item corresponding to the slave unit 2.
Through the above processing, the connection status information of each device managed by the connection status management table of the base unit 3 is kept up-to-date, and the connection status at the time of the request is returned in response to a request from the remote monitoring device 9. can do.

Next, a process after the start of the alarm mask setting timer T3 (process Z16) will be described.
When the timer T3 is started, the remote monitoring device 9 autonomously sends an ALM mask release request message to the parent device 3, and the parent device 3 that has received this message is directly or indirectly connected to all children currently connected. The maintenance monitoring control unit 34 sends an ALM mask release request message to the machine 2. Upon receiving this, the slave unit 2 updates the “mask setting presence / absence” of the corresponding slave unit ID in the alarm mask setting management table stored in the internal nonvolatile memory 27 to “none” by the maintenance monitoring control unit 25. , ALM mask release response message is returned. When the master unit 3 receives the ALM mask release response message from all the slave units 2, the maintenance monitoring control unit 34 returns an ALM mask release response message to the remote monitoring device 9.

  When the remote monitoring device 9 receives the ALM mask release response message from the parent device 3, it continuously sends an ALM mask setting request message to the parent device 9. When receiving the ALM mask setting request message, the master unit 9 performs maintenance monitoring control on the slave unit 2 connected to the last stage of each port (for example, the slave unit 2 (# 13) in the case of the first port). The unit 34 sends out an ALM mask setting request message. Upon receiving this, the slave unit 2 updates the “mask setting presence / absence” of the corresponding slave unit ID in the alarm mask setting management table stored in the internal nonvolatile memory 27 to “present” by the maintenance monitoring control unit 25. , ALM mask setting response message is returned. When receiving the ALM mask setting response message from the slave unit 2 that has transmitted the ALM mask setting request message, the base unit 3 returns the ALM mask setting response message to the remote monitoring device 9 by the maintenance monitoring control unit 34. Receiving this, the remote monitoring device 9 stops the timer T3 and finishes the alarm mask setting process (process Z17).

  Note that the alarm mask for the slave unit 2 at the last stage of each port is set to an unnecessary optical line abnormality (LOS (LOS ()) because there is no slave unit 2 connected to the subsequent stage in the case of the slave unit 2 capable of cascade connection. Loss of Signal), LOF (Loss of Frame), etc.).

  After the timer T3 is stopped, the remote monitoring device 9 starts a timer T4 for managing the time limit for setting device information in each device of the parent device 3 and the child device 2 (processing Z18), and sets the configuration information management table Various device information setting request messages including the contents are sent to the master unit 3. When the master device 9 receives the various device information setting request message, the maintenance monitoring control unit 34 nonvolatilely stores information (device name, installation address, IP address) to be set in the own device included in the various device information setting request messages. In addition to recording (setting) in the memory 37, various device information setting request messages including setting information for each child device 2 are sent to each child device 2. Receiving this, the slave unit 2 records (sets) information to be set in its own device included in the various device information setting request message in the nonvolatile memory 27 by the maintenance monitoring control unit 25, and sends various device information setting response messages. return. When receiving the various device information setting response messages from all the child devices 2, the parent device 3 returns the various device information setting response messages to the remote monitoring device 9 by the maintenance monitoring control unit 34. Receiving this, the remote monitoring device 9 stops the timer T4 and finishes the device information setting process (process Z19).

Thereafter, the remote monitoring device 9 sends a configuration information storage request message to the parent device 3. Receiving this, the base unit 3 records (saves) the latest configuration information management table transmitted from the remote monitoring device 9 in the nonvolatile memory 37 by the maintenance monitoring control unit 34 (process Z36), and stores it in the remote monitoring device 9. Returns a configuration information save response message.
When the remote monitoring device 9 receives the configuration information storage response message from the parent device 3, the remote monitoring device 9 displays the configuration status (processing Z37) and ends the series of setting processing. When the timer T3 for setting the alarm mask or the timer T4 for setting various device information is up, the fact is displayed on the display screen of the remote monitoring device 9 and the processing is interrupted.

  As described above, since the setting process for each device of the parent device 3 and the child device 2 is performed autonomously, it is possible not only to improve the work efficiency of the construction worker at the time of installation of each device but also to improve the operation. It is also possible to reduce mistakes (alarm mask setting / release omission, station information setting omission, etc.). In addition, since system configuration information (configuration information management table) can be input to the remote monitoring device 9 in advance, it is possible to greatly reduce the work time at the site. In addition, since the system configuration information at the time of installation is stored in the base unit 3, detection of a change in the operating system configuration (addition or deletion of the handset 2) is performed autonomously and notified to the remote monitoring device 9 It is also possible to do.

  In this example, the maintenance monitoring control unit 34 of the master unit 3 and the maintenance monitoring control unit 25 of the slave unit 2 constitute a connection state notification unit, an alarm mask setting unit, and a device information setting unit. The configuration information setting unit is configured by the maintenance monitoring control unit 34 of the machine 3, but each functional unit may be configured by other modes.

In this example, each information is stored by using a volatile memory and a nonvolatile memory separately, but each information may be stored in an arbitrary memory.
In this example, the alarm mask setting management table of each slave unit 2 is provided with information items related to all the slave units 2 related to the system, but only the information item related to its own slave unit 2 is provided. You may do it.

  Moreover, you may make it form the item of the connection state management table of the main | base station 3 autonomously based on the notification message from each subunit | mobile_unit 2. FIG. That is, for example, the item of the connection state management table of the parent device 3 at the time of factory shipment is only “number of connected child devices”, and the setting value is set to “0”. Then, based on the slave unit connection state change notification message transmitted when the power of each slave unit 2 is turned on, the presence / absence of the corresponding “slave unit ID” and “connection state” items is determined. The items of “slave unit ID” and “connection state” are added and values are respectively set, and “1” is added to “number of connected units”.

  Further, the connection order of each slave unit 2 at each port and the specification of the last-stage slave unit 2 can be autonomously performed. That is, when a slave unit connection state change notification message is transmitted from each slave unit 2 to the master unit 3, if one or more other slave units 2 exist between them, the slave units 2 perform the slave unit 2. Connection status change notification message is relayed. At this time, for example, the other handset 2 includes its own handset ID in the relay target handset connection state change notification message in a predetermined order, and the base unit 3 is transmitted from each handset 2. Based on one or a plurality of handset IDs included in the handset connection state change notification message, the connection order of each handset 2 and the last stage handset 2 are specified.

Here, the configuration of the system and apparatus according to the present invention is not necessarily limited to the configuration described above, and various configurations may be used. The present invention can also be provided as, for example, a method or method for executing the processing according to the present invention, a program for realizing such a method or method, or a recording medium for recording the program. It is also possible to provide various systems and devices.
The application field of the present invention is not necessarily limited to the above-described fields, and the present invention can be applied to various fields.
In addition, as various processes performed in the system and apparatus according to the present invention, for example, the processor executes a control program stored in a ROM (Read Only Memory) in hardware resources including a processor and a memory. A controlled configuration may be used, and for example, each functional unit for executing the processing may be configured as an independent hardware circuit.
The present invention can also be understood as a computer-readable recording medium such as a floppy (registered trademark) disk or a CD (Compact Disc) -ROM storing the control program, and the program (itself). The processing according to the present invention can be performed by inputting the program from the recording medium to the computer and causing the processor to execute the program.

It is a figure which shows schematic structure of the radio | wireless system which concerns on one Example of this invention. It is a functional block diagram of the main | base station of the optical transmission apparatus which concerns on one Example of this invention. It is a functional block diagram of the subunit | mobile_unit of the optical transmission apparatus which concerns on one Example of this invention. It is a figure which shows the structural example of the optical transmission apparatus system which concerns on one Example of this invention. It is a figure which illustrates the structure information management table which concerns on one Example of this invention. It is a figure which illustrates the connection state management table which concerns on one Example of this invention. It is a figure which illustrates the alarm mask setting management table which concerns on one Example of this invention. It is a sequence diagram of a setting process of configuration information according to an embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Mobile station, 2 ... Optical transmission apparatus subunit | mobile_unit, 3 ... Optical transmission apparatus parent | base station, 4 ... Connection apparatus, 5 ... Wireless base station 5, 6 ... Radio network control apparatus, 7 ... Switch, 8 ... Network, 9 ... Remote monitoring device, 21: optical I / F unit, 22, 35: optical signal conversion unit, 23, 32 ... wireless transmission / reception unit, 24 ... wireless amplification unit, 25, 34 ... maintenance monitoring control unit, 26, 36 ... volatile memory 27, 37 ... Nonvolatile memory, 31 ... Wireless I / F unit, 33 ... External device I / F unit

Claims (1)

In the optical transmission device system in which the control device and the parent device of the optical transmission device are connected to be communicable, and the parent device and the child device of the optical transmission device are connected to be capable of optical communication,
In response to a request from the control device, connection state notification means for notifying the control device of the connection state of the child device from the parent device and the child device side;
In response to a request from the control device, the alarm mask in all the slave units that are directly or indirectly connected in series to the master unit is canceled, and the slave unit connected to the end of the master unit Alarm mask setting means for setting the alarm mask in the machine,
In response to a request from the control device, device information setting means for setting predetermined device information for the parent device and all the child devices that are directly or indirectly connected in series to the parent device;
An optical transmission device system comprising:

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