JP4615471B2 - Communication relay device - Google Patents

Description

  The present invention has a communication relay function for relaying communication calls such as telephone calls and data calls. For example, when the stored configuration information is changed, the stored configuration information is changed according to the restart of the device itself. The present invention relates to a communication relay device that is updated.

  Conventionally, such a communication relay device is provided between, for example, a LAN and a WAN, and includes a communication terminal that accommodates and connects to the LAN and a communication relay function that relays communication calls between the communication terminals that are accommodated and connected to the WAN. .

  In such a communication relay device, when relaying a communication call between a LAN and a WAN, configuration information such as an IP address, a telephone number, and a communication protocol of each communication terminal in the LAN and the WAN is stored and managed. Based on the configuration information being managed, it is possible to realize relaying of communication calls between communication terminals between the LAN and the WAN.

  In addition, in such a communication relay device, when there is a change in the configuration information under storage management, it is necessary to restart the entire device in order to update the configuration information under storage management with the changed contents.

  Therefore, in such a conventional communication relay device, an operator directly visits the installation location of the communication relay device, inputs the contents of the configuration information change at the installation location, and restarts the communication relay device. The stored configuration information can be updated to the changed contents.

  However, according to such a conventional communication relay device, an operator must work directly at the place where the communication relay device is installed, and the burden on the operator is extremely large.

  Therefore, as a conventional technique, a terminal system such as a computer is used as a technical field. For example, after changing data and a changing program are transmitted to the terminal system by remote operation from a host system, a reset signal is further transmitted to the terminal system. Thus, the terminal system is known to execute a restart in response to a reset signal so that the changed data and the changed program can be updated inside the terminal system (see, for example, Patent Document 1). In addition, although the technical content of patent document 1 makes invention the terminal system, such as a computer, it does not make the communication relay apparatus mentioned above the invention object.

Therefore, if the technical idea of Patent Document 1 is adopted for a communication relay device, even if an operator does not go directly to the location where the communication relay device is installed, the communication relay device can be remotely operated from a maintenance terminal, for example. After inputting the change contents of the configuration information, when the communication relay device receives a reset signal from the maintenance terminal, the communication information is stored in the communication relay device by executing a restart in response to the reset signal. It is also conceivable that the content can be updated with changes.
JP-A-8-241206 (see FIG. 1 and abstract)

  However, according to the communication relay device as described above, for example, it is possible to execute a restart in response to a reset signal by a remote operation from the maintenance terminal, and to update the stored configuration information to the changed content in accordance with the restart. Although it is conceivable, for example, if a restart is executed during operation of this communication relay device without considering the communication usage status such as a time period when the communication usage frequency is very high, all communication calls currently being relayed are disconnected. It will end up.

  Therefore, the present invention has been made in view of the above points, and the object of the present invention is to change the configuration information while minimizing the disconnection of the communication call currently being relayed even during operation. Is to provide a communication relay device capable of updating

In order to achieve the above object, the communication relay device of the present invention includes a restart unit that executes a restart in response to a reset signal, and changes the stored configuration information according to the restart of the restart unit. A communication relay device comprising: an updating means for updating; and a communication relay means for relaying the communication call and disconnecting the communication call in response to restart of the restarting means. A communication monitoring means for monitoring a relay status of the communication call; a communication call number determining means for determining whether or not the number of communication calls currently being relayed is equal to or less than a set threshold value based on a monitoring result of the communication monitoring means; When it is determined by the communication call number determination means that the number of communication calls currently being relayed is less than or equal to a set threshold, the control means for outputting the reset signal and whether or not the current time has reached the set time are determined. Consists of setting time judgment means If the communication time determination unit determines that the current time has reached the set time by the set time determination unit, the communication call number determination unit determines whether or not the number of communication calls currently being relayed is equal to or less than a set threshold. When the control means determines that the number of communication calls currently being relayed is not less than or equal to a set threshold, the number of communication calls currently being relayed is less than or equal to the set threshold. When the determination operation of the communication call number determination unit is continued and when the set time determination unit determines that the current time has reached the set time, a time monitoring operation of a predetermined monitoring timer is started, and the communication call number Even if it is determined by the determination means that the number of communication calls currently being relayed is not less than or equal to the set threshold, the determination operation of the communication call number determination means is continued and the reset signal is output when the predetermined monitoring timer times out It is characterized by doing .

In order to achieve the above object, the communication relay device of the present invention includes a restarting unit that executes a restart in response to a reset signal, and changes stored configuration information in response to the restarting of the restarting unit. A communication relay device comprising: update means for updating contents; and communication relay means for relaying a communication call and disconnecting the communication call in response to restart of the restart means, wherein the communication relay A communication monitoring means for monitoring the relay status of the communication call of the means, and a communication call number determining means for determining whether or not the number of communication calls currently being relayed is below a set threshold based on the monitoring result of the communication monitoring means; When the communication call number determination means determines that the number of communication calls currently being relayed is less than or equal to the set threshold, the control means for outputting the reset signal and whether or not the current time has reached the set time Has set time determination means to determine For this reason, when the communication call number determining means determines that the current time has reached the set time by the set time determining means, it is determined whether or not the number of communication calls currently being relayed is less than or equal to a set threshold value. If the control means determines that the current time has reached the set time by the set time determination means, the control means starts a timing operation of a predetermined monitoring timer, and the communication call number determination means Even if it is determined that the number of communication calls being relayed is not less than or equal to a set threshold value, the determination operation of the communication call number determination means is continued, and the reset signal is output when the predetermined monitoring timer times out. you.

Therefore, according to the communication relay device of the present invention, when it is determined that the number of communication calls currently being relayed is less than or equal to the set threshold based on the monitoring result of the communication monitoring means, the reset signal is sent to execute the restart. For example, if the setting threshold is set to “0” or the minimum allowable number of calls for communication call disconnection, even if the communication relay device is in operation, It is possible to update the change contents of the configuration information while suppressing disconnection of the communication call being relayed to the minimum, that is, below the set threshold .

Further , according to the communication relay device of the present invention, when it is determined that the current time has reached the set time, the number of communication calls for determining whether the number of communication calls currently being relayed is equal to or less than a set threshold value. Since the determination operation of the determination means is performed, for example, when the set time is set in a time zone such as midnight when the communication usage frequency is low, the communication usage frequency is low, so the relay is currently being relayed The change in the configuration information can be updated while minimizing the disconnection of the communication call at the same time, i.e., below the set threshold.

Further , according to the communication relay device of the present invention, when it is determined that the number of communication calls currently being relayed is not less than or equal to a set threshold value, the communication call number determination is performed until the number of communication calls currently being relayed is not more than a set threshold value. Since the determination operation of the means is continued, it is possible to update the change contents of the configuration information while minimizing the disconnection of the communication call currently being relayed due to the restart to a minimum, that is, below the set threshold value.

Further , according to the communication relay device of the present invention, when it is determined that the current time has reached the set time, a time monitoring operation of a predetermined monitoring timer is started, and the communication channel currently being relayed by the communication call number determination means Even if it is determined that the number of calls is not less than or equal to a set threshold, the determination operation of the communication call number determination means is continued, and when the predetermined monitoring timer expires, the reset signal is output. The configuration information is changed by forcibly outputting a reset signal when the predetermined monitoring timer expires, even if the communication operation currently being relayed does not fall below the set threshold even if the number determination means continues the determination operation. Therefore, it is possible to prevent a bad effect that the update cannot be performed.

  According to the communication relay device of the present invention configured as described above, if it is determined that the number of communication calls currently being relayed is less than or equal to the set threshold based on the monitoring result of the communication monitoring means, the restart is executed. Therefore, a reset signal is output. For example, by setting the setting threshold to “0” or the minimum allowable number of calls for disconnecting communication calls, even if the communication relay device is in operation, the reset signal is output again. The change of the configuration information can be updated while the disconnection of the communication call currently being relayed due to the activation is kept to a minimum, that is, below the set threshold.

  A LAN-WAN communication system showing an embodiment relating to a communication relay device of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of the entire LAN-WAN communication system according to the present embodiment.

  A LAN-WAN communication system 1 shown in FIG. 1 is connected between a LAN communication system 2, a WAN communication system 3, these LAN communication system 2 and the WAN communication system 3, and an IP telephone 2A on the LAN communication system 2 side, And a communication relay device 4 that relays a call between the IP telephones 3A on the WAN communication system 3 side by protocol conversion.

  The LAN communication system 2 includes an IP telephone 2A, an IP-PBX 2B that manages the IP telephone 2A, and a LAN-side hub 2C that accommodates and connects the IP telephone 2A and the IP-PBX 2B. It connects with the WAN communication system 3 through the communication relay device 4.

  The WAN communication system 3 includes a router 3C that is connected to the IP telephone service network 3B that accommodates and connects the IP telephone 3A, a maintenance PC 3D, and a WAN-side hub 3E that accommodates and connects the router 3C and the maintenance PC 3D. The WAN side hub 3E is connected to the LAN communication system 2 through the communication relay device 4.

  FIG. 2 is a block diagram showing a schematic configuration inside the communication relay device 4 according to the present embodiment.

  The communication relay device 4 shown in FIG. 2 includes a LAN-side communication interface 11 that controls a communication interface with the LAN-side hub 2C, a LAN-side communication control unit 12 that controls the LAN-side communication interface 11, and a WAN-side hub 3E. Call communication between the IP telephones 2A and 3A between the WAN side communication interface 13 that controls the communication interface, the WAN side communication control unit 14 that controls the WAN side communication interface 13, and the LAN side communication interface 11 and the WAN side communication interface 13 The communication relay unit 15 for converting the protocol of the communication, the communication monitoring unit 16 for monitoring the communication status of the communication relay unit 15, and configuration information such as the IP addresses, telephone numbers, and communication protocols of the IP telephones 2A and 3A, for example. Memory unit 17 to be stored, and change contents for temporarily storing change contents of configuration information A memory unit 17, a memory control unit 19 that controls the memory unit 17 and the change content memory unit 18, a restart unit 20 that restarts the entire communication relay device 4 in response to a reset signal, and a reset condition described later A setting unit 21 for setting the time, a reset time monitoring unit 22 for monitoring whether or not the current time has reached a reset start time described later, a timer monitoring unit 23 described later, and the communication relay device 4 as a whole. A main-side control unit 24. Note that the operation systems (OS) used in the LAN side control unit 12, the WAN side control unit 14, and the main side control unit 24 are different from each other.

  The communication monitoring unit 16 detects the communication status of the communication relay unit 15, for example, the number of call channel calls currently being relayed, the number of call termination channel calls, and the like.

  If the reset time monitoring unit 22 determines that the current time has reached the reset start time, the main-side control unit 24 acquires the number of call channel calls currently being relayed through the communication monitoring unit 16, and acquires the acquired current It is determined whether or not the number of call channel calls being relayed is less than or equal to a set threshold value, and if it is determined that the number of call channel calls currently being relayed is less than or equal to the set threshold value, the LAN side communication control unit 12 and the WAN side communication In addition to resetting the control unit 14, a reset signal is output to the restarting unit 20. It should be noted that the reset start time and the set threshold value can be arbitrarily set by the user through the setting unit 21.

  Further, when it is determined that the current time has reached the reset start time, the main-side control unit 24 starts the time monitoring operation of the call monitoring timer through the timer monitoring unit 23 and is currently relaying until the communication monitoring timer times out. The operation of determining whether or not the number of call channel calls is equal to or less than a set threshold value is continued. The communication monitoring timer time can be set by the user as an arbitrary timer time through the setting unit 21.

  That is, the main-side control unit 24 starts the time monitoring operation of the call monitoring timer and then continues the operation of determining whether or not the number of call channel calls currently being relayed is equal to or less than the set threshold value. When the number of communication channel calls currently being relayed is not less than the set threshold, a reset signal is output to the restart unit 20 as well as the LAN side communication control unit 12 and the WAN side communication control unit 14 To do. The reason for individually resetting the LAN side communication control unit 12, the WAN side communication control unit 14, and the main side control unit 24 is that the LAN side communication control unit 12, the WAN side communication control unit 14, and the main side control unit are reset. This is because the OS to be used is different.

  Further, when the main-side control unit 24 detects the change content according to the input operation of the change content related to the configuration information, the main-side control unit 24 temporarily stores the change content in the change content memory unit 18, and restarts the restarting unit 20. In response to activation, the configuration information stored in the memory unit 17 is updated to the changed content stored in the changed content memory unit 18. Note that the change information stored in the change content memory unit 18 cannot update the configuration information stored in the memory unit 17 unless the restart unit 20 is restarted.

  The main control unit 24 can set a reset condition through the setting unit 21. The reset condition includes an automatic restart setting for setting automatic restart ON / OFF, a current time setting for setting the current time, and a reset. Reset start time setting for setting the start time, call status compatible reset mode setting for setting the call status compatible reset mode described later to ON / OFF, forced reset mode setting for setting the forced reset mode ON / OFF, and call status compatible There is a setting threshold setting for setting a setting threshold used when reset ON is set, and a call monitoring timer setting for setting a timer time of a call monitoring timer used when call status compatible reset ON is set. The reset condition can be set not only from the setting unit 21 but also from, for example, the maintenance PC 3D. FIG. 3 corresponds to the setting screen of the maintenance PC 3D. Needless to say, the contents of the change related to the configuration information can be input not only from the setting unit 21 but also by remote operation from the maintenance PC 3D.

  The communication relay device according to the claims is the communication relay device 4, the restart means is the restart section 20, the update means is the memory control section 19 and the main side control section 24, the communication relay means is the communication relay section 15, and the communication monitoring means. Is the communication monitoring unit 16, the communication call number determination means and the control means are the main control unit 24, the set time determination means is the reset time monitoring unit 22, the predetermined monitoring timer is the timer monitoring unit 23, and the reset condition determination means is the main control unit. 24.

  Next, the operation of the LAN-WAN communication system 1 showing the first embodiment will be described. FIG. 4 is a flowchart showing the processing operation of the main control unit 24 related to the first automatic restart processing of the communication relay device 4 according to the first embodiment.

  The first automatic restart process shown in FIG. 4 monitors the communication status of the communication relay device 4 according to the arrival of the reset start time, and changes the configuration information by executing the restart according to the monitoring result. It is a process to update. Note that the main-side control unit 24 sets the automatic restart setting to ON, the call status corresponding reset mode setting to ON, the current time setting, the reset start time setting, the setting threshold setting, and the call monitoring timer setting through the setting unit 21, respectively. It shall be.

  In FIG. 4, the main side control unit 24 determines whether or not the automatic restart setting is ON (step S10). When it is determined that the automatic restart setting is ON, the main-side control unit 24 determines whether or not the current time has reached the reset start time through the reset time monitoring unit 22 (step S11).

  When it is determined that the current time has reached the reset start time, the main-side control unit 24 determines whether or not the currently set reset mode is a call status-compatible reset mode (step S12). When it is determined that the currently set reset mode is the call status compatible reset mode, the main-side control unit 24 starts the time monitoring operation of the call monitoring timer through the timer monitoring unit 23 (step S21).

  When the main side control unit 24 starts the time monitoring operation of the call monitoring timer through the timer monitoring unit 23, the main side control unit 24 acquires the number of call channel calls currently being relayed through the communication monitoring unit 16, and the number of call channel calls is equal to or less than the set threshold value. Whether or not (step S13).

  When it is determined that the number of call channel calls currently being relayed is less than or equal to the set threshold, the main-side control unit 24 determines whether there is a call channel currently being relayed through the communication monitoring unit 16 (step S14). .

  When it is determined that there is a call channel that is currently being relayed, the main-side control unit 24 closes all the call channels that are currently being relayed (step S15), and the LAN-side communication control unit 12 and the WAN-side communication control unit 14 A reset request is executed (step S16), and it is determined whether or not the reset operation of the LAN side communication control unit 12 and the WAN side communication control unit 14 in response to the reset request is completed (step S17).

  Further, when it is determined in step S17 that the reset operation of the LAN side communication control unit 12 and the WAN side communication control unit 14 has been completed, the main side control unit 24 outputs a reset signal to the restarting unit 20. (Step S18), the restart of the restart unit 20 is started (Step S19).

  The main control unit 24 updates the configuration information stored in the memory unit 17 to the changed content stored in the changed content memory unit 18 in response to the restart of the restarting unit 20 (step S20). Exit.

  If it is determined in step S10 that the automatic restart setting is not ON, the main-side control unit 24 determines that the automatic restart setting is OFF and ends this processing operation. Moreover, the main side control part 24 complete | finishes this process operation, if the present time has not reached the reset start time in step S11.

  On the other hand, if it is determined in step S12 that the currently set reset mode is not the call state compatible reset mode, the main-side control unit 24 determines that it is the forced reset mode, and proceeds to step S14.

  If it is determined in step S14 that there is no call channel currently being relayed, the main control unit 24 determines that all the call channels are blocked, and proceeds to step S16.

  Further, when it is determined in step S13 that the number of call channels currently being relayed is not less than the set threshold value, the main-side control unit 24 has a call termination channel in the call channel currently being relayed through the communication monitoring unit 16. It is determined whether or not (step S22).

  When it is determined that there is a call termination channel, the main control unit 24 closes the call channel of the call termination channel (step S23), and decrements the number of call channel calls currently being relayed by -1 (step S24). ) In order to determine whether or not the number of call channel calls currently being relayed is equal to or less than the set threshold value, the process proceeds to step S13.

  On the other hand, if it is determined in step S22 that there is no call termination channel, the main control unit 24 determines whether or not the call monitoring timer that started the timing operation in step S21 has expired (step S25). .

  If the call monitoring timer has not expired in step S25, the main-side control unit 24 proceeds to step S22 to monitor the presence / absence of the call-ending channel.

  If the call monitoring timer has timed out in step S25, the main side control unit 24 proceeds to step S15 in order to forcibly block all call channels currently being relayed.

  According to the first automatic restart process shown in FIG. 4, when it is determined that the current time has reached the reset start time, it is determined whether or not the number of call channel calls currently being relayed is equal to or less than a set threshold value. When it is determined that the number of call channel calls currently being relayed is less than the set threshold, a reset signal is output to execute the restart. When the start time is set, even if the communication relay device 4 is in operation, the contents of the configuration information change while minimizing the disconnection of the call channel call currently being relayed due to restart, that is, below the set threshold Can be updated.

  Further, according to the first automatic restart process, when it is determined that the current time has reached the reset start time, the timer monitoring unit 23 starts the time monitoring operation of the call monitoring timer, and the number of call channel calls currently being relayed Even if it is determined that is not less than the set threshold value, the determination operation for determining whether the number of call channel calls is less than the set threshold value is continued, and when the call monitoring timer times out, a reset signal is output. Therefore, the determination operation of step S13 is continued, and even if the number of call channel calls currently being relayed does not become the set threshold value or less, when the call monitoring timer expires, the reset signal is forcibly output, thereby causing the configuration information It is possible to prevent adverse effects such that the change contents cannot be updated to the changed contents.

  In the first automatic restart process shown in FIG. 4, a reset start time is set, and if it is determined in step S11 that the current time has reached the reset start time, the first automatic restart process is performed. The processing operation after step S12 is executed, but the automatic restart processing may be executed without setting the reset start time. The second automatic restart is performed for the processing operation in this case. This will be described as processing. FIG. 5 is a flowchart showing the processing operation of the main control unit 24 related to the second automatic restart process.

  The second automatic restart process shown in FIG. 5 is a process for executing restart according to the current communication status without setting the reset start time. The main-side control unit 24 sets the automatic restart setting to ON, sets the call state corresponding reset mode to ON, sets the current time setting, and the setting threshold value without setting the reset start time. It shall be.

  In FIG. 5, the main-side control unit 24 determines whether or not the automatic restart setting is ON (step S31).

  When it is determined that the automatic restart setting is ON, the main-side control unit 24 acquires the number of call channel calls currently being relayed through the communication monitoring unit 16, and the number of call channel calls is equal to or less than the set threshold value. It is determined whether or not (step S32). When the reset start time is not set, it is assumed that the call status corresponding reset mode is set to ON.

  When it is determined that the number of call channel calls is equal to or less than the set threshold value, the main-side control unit 24 determines whether there is a call channel currently being relayed through the communication monitoring unit 16 (step S33).

  If it is determined that there is a call channel currently being relayed, the main side control unit 24 closes all the call channels currently being relayed (step S34), and the LAN side communication control unit 12 and the WAN side communication control unit 14 Then, a reset request is executed (step S35), and it is determined whether or not the reset operation of the LAN side communication control unit 12 and the WAN side communication control unit 14 in response to the reset request is completed (step S36).

  Further, when it is determined in step S36 that the reset operation of the LAN side communication control unit 12 and the WAN side communication control unit 14 is completed, the main side control unit 24 outputs a reset signal to the restarting unit 20. (Step S37), the restart of the restart unit 20 is started (Step S38).

  The main control unit 24 updates the configuration information stored in the memory unit 17 to the changed content stored in the changed content memory unit 18 in response to the restart of the restarting unit 20 (step S39). Exit.

  On the other hand, when it is determined in step S31 that the automatic restart setting is not ON, the main-side control unit 24 determines that the automatic restart setting is OFF and ends this processing operation.

  On the other hand, if it is determined in step S33 that there is no call channel currently being relayed, the main control unit 24 determines that all call channels are blocked, and the process proceeds to step S35.

If the main control unit 24 determines in step S32 that the number of call channels currently being relayed is not less than or equal to the set threshold value, the main channel control unit 24 has a call termination channel in the call channel currently being relayed through the communication monitoring unit 16. Is determined (step S40).

  When it is determined that there is a call termination channel, the main control unit 24 blocks the call channel of the call termination channel (step S41), and decrements the number of call channel calls currently being relayed by -1 (step S42). ) In order to determine whether or not the number of call channel calls currently being relayed is equal to or less than the set threshold value, the process proceeds to step S32.

  If it is determined in step S40 that there is no call termination channel, the main control unit 24 proceeds to step S32 to monitor whether or not the number of call channel calls currently being relayed is less than or equal to the set threshold value. To do.

  According to the second automatic restart process shown in FIG. 5, even if the reset start time is not set, it is determined whether or not the number of call channel calls currently being relayed is equal to or less than a set threshold, and the call currently being relayed If it is determined that the number of channel calls is less than or equal to the set threshold value, a reset signal is output to execute the restart, so even if the reset start time is not set, The change contents of the configuration information can be updated while minimizing disconnection of the call channel call, that is, below the set threshold.

  Further, according to the second automatic restart process, the determination operation in step S32 is continued until the number of call channel calls currently being relayed reaches the set threshold value in step S32. The change in the configuration information can be updated while minimizing the disconnection of the communication channel call of the communication channel while keeping it to a minimum, that is, below the set threshold.

  In the second automatic restart process, the determination operation in step S32 is continued until the number of call channel calls currently being relayed in step S32 reaches the set threshold. However, in step S21 shown in FIG. Needless to say, the reset signal may be forcibly output in response to the time-up of the call monitoring timer in step S25.

  According to the present embodiment, if it is determined based on the monitoring result of the communication monitoring unit 16 that the number of call channel calls currently being relayed is equal to or less than the set threshold value, a reset signal is output to execute the restart. Since the setting threshold is set to “0” or the allowable number of calls for forced disconnection of the communication channel, the communication channel currently being relayed is disconnected even if the communication relay device 4 is in operation. The content of change in the configuration information can be updated while keeping the value to a minimum, that is, below the set threshold.

  According to the present embodiment, when it is determined that the current time has reached the reset start time, the determination operation is performed to determine whether or not the number of call channel calls currently being relayed is equal to or less than the set threshold value. For example, when the set time is set in the time zone such as midnight when the communication usage frequency is low, the change of the configuration information can be reduced while minimizing the disconnection of the call channel currently being relayed due to restart, that is, below the set threshold. Can be updated.

  Further, according to this embodiment, when it is determined that the current time has reached the reset start time, the timer monitoring unit 23 starts the time monitoring operation of the call monitoring timer, and the number of call channel calls currently being relayed is set. Even if it is determined that the number is not less than the threshold value, the determination operation for determining whether or not the number of call channel calls currently being relayed is equal to or less than the set threshold value is continued, and when the call monitoring timer expires, a reset signal is output. As a result, even if the number of call channel calls currently being relayed does not fall below the set threshold, when the call monitoring timer expires, the reset information is forcibly output, and the configuration information cannot be updated to the changed contents. Such harmful effects can be prevented.

  Further, according to the present embodiment, when it is determined that the number of call channel calls currently being relayed is not less than or equal to the set threshold value, the determination operation is continued until the number of call channel calls currently being relayed is equal to or less than the set threshold value. As described above, the change in the configuration information can be updated while the disconnection of the call channel currently being relayed due to the restart is kept to a minimum, that is, below the set threshold.

  In the above embodiment, a reset signal is output to the restarting unit 20 based on the determination result of whether or not the number of call channel calls currently being relayed is less than or equal to the set threshold, and the restarting unit 20 is restarted. The configuration information stored in the memory unit 17 is updated to the change content stored in the change content memory unit 18 in response to the activation, but whether or not the number of call channel calls currently being relayed is equal to or less than the set threshold value. Regardless of the determination operation, for example, it is determined whether or not the current time has reached the reset start time, and when the current time has reached the reset start time, a reset signal is output to the restart unit 20 and the restart is performed. The configuration information stored in the memory unit 17 may be updated to the changed content stored in the changed content memory unit 18 in response to the restart of the unit 20. Reset belt open Set the time, the disconnected call channel calls currently being relayed with the restart, while minimizing compared to many hours of communication usage frequency, it is possible to update the changes of the configuration information.

  According to the communication relay device of the present invention configured as described above, if it is determined that the number of communication calls currently being relayed is less than or equal to the set threshold based on the monitoring result of the communication monitoring means, the restart is executed. Therefore, a reset signal is output. For example, by setting the setting threshold to “0” or the minimum allowable number of calls for disconnecting communication calls, even if the communication relay device is in operation, the reset signal is output again. Since it is possible to update the configuration information change while minimizing the disconnection of the communication call currently being relayed due to the activation, that is, below the set threshold value, for example, in a communication relay device that relays a call or data call Useful.

It is a block diagram which shows schematic structure of the whole LAN-WAN communication system which shows embodiment in connection with the communication relay apparatus of this invention. It is a block diagram which shows schematic structure inside the communication relay apparatus in connection with this Embodiment. It is explanatory drawing which shows the setting screen on maintenance PC in the WAN side communication system in connection with this Embodiment. It is a flowchart which shows the processing operation of the main side control part in connection with the 1st automatic restart process of the communication relay apparatus in connection with this Embodiment. It is a flowchart which shows the processing operation of the main side control part in connection with the 2nd automatic restart process of the communication relay apparatus in connection with this Embodiment.

Explanation of symbols

4 Communication relay device 15 Communication relay unit (communication relay means)
16 Communication monitoring unit (communication monitoring means)
19 Memory control unit (update means)
20 Restart unit (restart means)
22 Reset time monitoring unit (set time determination means)
23 Timer monitoring unit (predetermined monitoring timer)
24 main side control unit (update means, communication call number judgment means, reset condition judgment means and control means)

Claims (2)

A restarting means for executing a restart in response to the reset signal; an updating means for updating the stored configuration information to the changed content in response to the restart of the restarting means; relaying the communication call; A communication relay device having communication relay means for disconnecting the relay of the communication call in response to restart of the start means,
A communication monitoring means for monitoring a communication call relay status of the communication relay means;
Based on the monitoring result of the communication monitoring means, the communication call number determining means for determining whether or not the number of communication calls currently being relayed is equal to or less than a set threshold value;
When it is determined by the communication call number determination means that the number of communication calls currently being relayed is less than or equal to a set threshold, the control means for outputting the reset signal;
It has a set time determination means for determining whether or not the current time has reached the set time,
The communication call number determination unit determines whether or not the number of communication calls currently being relayed is equal to or less than a set threshold when the set time determination unit determines that the current time has reached the set time.
Further, when the communication call number determination means determines that the number of communication calls currently being relayed is not less than or equal to a set threshold value, the control means performs the communication until the number of communication calls currently being relayed is less than or equal to a set threshold value. When the determination operation of the call number determination unit is continued, and when it is determined by the set time determination unit that the current time has reached the set time, a timing operation of a predetermined monitoring timer is started, and the communication call number determination unit Even if it is determined that the number of communication calls currently being relayed is not less than or equal to a set threshold, the determination operation of the communication call number determination means is continued, and when the predetermined monitoring timer expires, the reset signal is output.
A communication relay device. A restarting means for executing a restart in response to the reset signal; an updating means for updating the stored configuration information to the changed content in response to restarting of the restarting means; relaying the communication call; A communication relay device having communication relay means for disconnecting the relay of the communication call in response to restart of the starting means,
A communication monitoring means for monitoring a communication call relay status of the communication relay means;
Based on the monitoring result of the communication monitoring means, the communication call number determining means for determining whether or not the number of communication calls currently being relayed is equal to or less than a set threshold value;
When it is determined by the communication call number determination means that the number of communication calls currently being relayed is less than or equal to a set threshold, the control means for outputting the reset signal;
It has a set time determination means for determining whether or not the current time has reached the set time,
The communication call number determination unit determines whether or not the number of communication calls currently being relayed is equal to or less than a set threshold when the set time determination unit determines that the current time has reached the set time,
In addition, when the set time determining means determines that the current time has reached the set time, the control means starts a timing operation of a predetermined monitoring timer, and the communication call number determining means is currently relaying Even if it is determined that the number of communication calls is not less than or equal to a set threshold, the determination operation of the communication call number determination means is continued, and when the predetermined monitoring timer expires, the reset signal is output.
Communication relay apparatus characterized by.

Images