JP7397015B2 - Emergency telephone system and emergency telephone system call connection method - Google Patents

Description

The present invention relates to an emergency telephone system, and particularly to an emergency telephone system that is highly resistant to device failures and network failures.

In order to increase the resistance to device failures and network failures, an emergency telephone system has been proposed that switches from normal operation to backup operation by changing the emergency telephone call route.

Patent Document 1 relates to an IP telephone system, and proposes to prevent calls from being disconnected as much as possible even if a failure occurs in a data relay server, thereby achieving high reliability. In Patent Document 1, when a data relay server is switched from a standby system to an active system, the data relay unit starts communication with each IP telephone terminal, refers to a call information database, and performs data relay. Proposed.

Patent Document 2 relates to improving the reliability of an emergency call system. In Patent Document 2, when an incoming call is received from an emergency call line, an incoming call signal is sent to all reception desks via a LAN (Local Area Network), and communication is carried out with the reception desk from which a response operation was performed. In order to respond to reports, it has been proposed to provide a plurality of VOIP (Voice over Internet Protocol) gateway devices and further duplicate them. Additionally, if a failure occurs during a call, the gateway control unit detects this failure and sends a switching signal to the audio distribution/selection unit, which then routes the call information to another route. It has been proposed that the VOIP gateway device writes the detected failure information into the control area of the frame to the reception console and notifies the reception console.

JP2008-228221A Japanese Patent Application Publication No. 2006-013793

However, the emergency telephone system of the background art described above has the following problems. In the case of switching from normal operation to backup operation by changing the configuration such as changing the calling route of an emergency telephone, it takes time to authenticate between each device. There is also a risk that the route switching situation will not be completed normally and backup operations will not be possible.

Patent Document 1 and Patent Document 2 do not propose a solution for solving such problems.

An object of the present invention is to provide an emergency telephone system that is highly resistant to device failures and network failures, and that can immediately respond to calls from emergency telephones.

In order to achieve the above object, the emergency telephone system according to the present invention includes:
A first track monitoring device connected to the emergency telephone in the first jurisdiction, an emergency telephone server in the first jurisdiction connected to the first track monitoring device, and a reception desk connected to the emergency telephone server in the first jurisdiction. A stand and
a second track monitoring device connected to an emergency telephone in a second pipe different from the first pipe; an emergency telephone server in the second pipe connected to the second track monitoring device; a reception desk connected to an emergency telephone server;
The first track monitoring device notifies the emergency telephone server in the first jurisdiction and the emergency telephone server in the second jurisdiction of the incoming call from the emergency telephone,
The reception desk connected to the emergency telephone server in the first jurisdiction receives calls from the emergency telephone in the first jurisdiction via the emergency telephone server in the first jurisdiction, and the emergency telephone server in the first jurisdiction operates as a backup. When the emergency call server is in the middle of the day, calls received via the emergency telephone server in the second jurisdiction are accepted.

The incoming call reception method of the emergency telephone system according to the present invention is as follows:
A first track monitoring device connected to the emergency telephone in the first jurisdiction, an emergency telephone server in the first jurisdiction connected to the first track monitoring device, and a reception desk connected to the emergency telephone server in the first jurisdiction. and,
A second track monitoring device connected to an emergency telephone in a second pipe different from the first pipe, an emergency telephone server in the second pipe connected to the second track monitoring device, and an emergency telephone server in the second pipe. An incoming call reception method for an emergency telephone system including a reception board connected to a telephone server,
The first track monitoring device notifies the emergency telephone server in the first jurisdiction and the emergency telephone server in the second jurisdiction of the incoming call from the emergency telephone,
The reception desk connected to the emergency telephone server in the first jurisdiction receives calls from the emergency telephone in the first jurisdiction via the emergency telephone server in the first jurisdiction, and the emergency telephone server in the first jurisdiction operates as a backup. When the emergency call server is in the middle of the day, calls received via the emergency telephone server in the second jurisdiction are accepted.

According to the present invention, it is possible to provide an emergency telephone system that is highly resistant to device failures and network failures and that can immediately respond to incoming calls from emergency telephones.

FIG. 1 is a block diagram for explaining an emergency telephone system according to a first embodiment. FIG. 2 is a block diagram for explaining the configuration of a reception desk. FIG. 7 is a block diagram for explaining an example of an emergency telephone system according to a second embodiment and an operation when an emergency telephone call is received. FIG. 7 is a block diagram for explaining another example of the operation of the emergency telephone system according to the second embodiment when an emergency call is received. FIG. 7 is a block diagram for explaining still another example of the operation of the emergency telephone system according to the second embodiment when an emergency call is received. It is a flowchart for explaining the operation of the reception desk of the emergency telephone system. FIG. 7 is a block diagram for explaining an emergency telephone system according to another embodiment.

Preferred embodiments of the present invention will be described in detail with reference to the drawings.

[First embodiment]
An emergency telephone system according to a first embodiment of the present invention will be explained.

FIG. 1 is a block diagram for explaining the emergency telephone system according to the first embodiment. The emergency telephone system in FIG. 1 includes an A branch office system and a B branch office system. The A branch area system includes an emergency telephone 51, an A branch area IP (Internet Protocol) line monitoring device 52, an emergency telephone server 53, a reception desk 54, and a general maintenance console 55. The B branch area system includes an emergency telephone 56, a B branch area IP (Internet Protocol) track monitoring device 57, an emergency telephone server 58, a reception desk 59, and a general maintenance console 60.

Emergency calls are made from emergency telephones 51 and 56. An emergency call made from the emergency telephone 51 is received at the reception desk 54 of the A branch via the A branch area IP line monitoring device 52 to which the emergency telephone 51 is connected, and the emergency telephone server 53 of the branch A. do. An emergency call made from the emergency telephone 56 is received at the reception desk 59 of the B branch via the B branch jurisdiction IP track monitoring device 57 to which the emergency telephone 56 is connected, via the emergency telephone server 58 of the branch B. do. Furthermore, in the emergency telephone system of this embodiment, when the A branch area IP track monitoring device 52 makes a call from the A branch emergency telephone 51, the A branch emergency telephone server 53, the B branch emergency telephone server 58, Send a message to both. In addition, in the emergency telephone system of this embodiment, when the B branch area IP line monitoring device 57 makes a call from the B branch emergency telephone 56, the B branch emergency telephone server 58, the A branch emergency telephone server 53, Send a message to both.

The general maintenance console 55 monitors the IP line monitoring device 52 within the A branch jurisdiction, the emergency telephone server 53, and the reception desk 54, and can ascertain which device among these has experienced a failure. The general maintenance console 60 monitors the IP track monitoring device 57 within the B branch office, the emergency telephone server 58, and the reception desk 59, and is able to ascertain which device among these has experienced a failure. When a device failure or network failure occurs in each device monitored by the general maintenance console 55, an alarm is displayed on the general maintenance console 55, and when a device failure or network failure occurs in each device monitored by the general maintenance console 60, the general maintenance An alarm is displayed on the console 60. The general maintenance console 55 and the general maintenance console 60 are interconnected, cooperate between branch offices, and share information. By sharing this information, the general maintenance console 55 and the general maintenance console 60 can distinguish devices in which a failure has occurred not only within their own branch office but also within other branch offices.

In the emergency telephone system of this embodiment, if control operation becomes difficult due to equipment failure, network failure, large-scale disaster, etc., it is possible to switch from normal operation to backup operation at the discretion of the person in charge of control operation. There is. Switching of the backup operation is also performed by the general maintenance console 55 and the general maintenance console 60.

The reception desk 54 and the reception desk 59 in FIG. 1 are configured to include a control section 71, a display/operation section 72, and a VoIP (Voice over Internet Protocol) conversion device 73, as shown in FIG.

The control unit 71 is realized by, for example, a PC (Personal Computer) body. The control unit 71 performs the main processing of the reception desk 54 and the reception desk 59. The control unit 71 also receives a monitoring signal and a control signal indicating whether the current emergency telephone system operation is normal operation or backup operation, and determines whether the current emergency telephone system operation is normal operation or backup operation. After determining the incoming call from the emergency telephone, the system also determines whether to accept or discard the call. The display/operation unit 72 includes a monitor as an example of a display unit, and the monitor can include a touch panel. The display/operation unit 72 can include a mouse as an example of an operation unit. A voice signal is input to the VoIP conversion device 73, and a handset and a speaker are connected thereto.

(Explanation of operation)
The operation of the emergency telephone system shown in FIG. 1 will be explained. Normal operation when A branch jurisdiction system and B branch jurisdiction system are operating normally, and when control operation becomes difficult due to equipment failure, network failure, large-scale disaster, etc. in A branch jurisdiction system or B branch jurisdiction system. The following explanation assumes that this is a backup operation.

In normal operation when the A branch jurisdiction system and the B branch jurisdiction system are operating normally, when a call is made from the emergency telephone 51 in the A branch jurisdiction, a call notification is sent to the A branch IP line monitoring device 52 to which the emergency telephone 51 is connected. reach. The A branch area IP line monitoring device 52 converts the call notification from the emergency phone 51 into an IP signal, and then sends an IP signal to the emergency phone server 53 in the A branch area and the emergency phone server 58 in the B branch area. do.

The emergency telephone server 53 within the jurisdiction of the A branch makes a call to the reception desk 54, and the reception desk 54 makes a call to the emergency telephone 51.

The emergency telephone server 58 in the B branch jurisdiction receives an IP signal from the A branch IP line monitoring device 52 and sends a call to the reception desk 59 in the B branch jurisdiction and the reception desk 54 in the A branch jurisdiction. Here, since the emergency telephone system is in normal operation, calls from the emergency telephone server 58 are discarded at the reception desk 59 and the reception desk 54. Discarding this incoming call is determined based on the IP address of the emergency telephone 51 that made the call. Incoming calls will only be accepted from emergency telephones within the jurisdiction of the branch office and those that have passed through the emergency telephone server within the jurisdiction of the branch office. If the call is received from an emergency phone number within the jurisdiction of another branch, the reception desk will discard the call. Even if the call is received from an emergency telephone within the jurisdiction of one's own branch office, it is determined based on the IP address of the emergency telephone server through which it passed, and if the call was received through an emergency telephone server within the jurisdiction of another branch office, it is discarded.

Next, we will explain backup operations when control operations become difficult due to device failures, network failures, large-scale disasters, etc. in the A branch office system. When a call is made from the emergency telephone 51 within the A branch jurisdiction, a call notification is delivered to the A branch IP track monitoring device 52 to which the emergency telephone 51 is connected. The A branch area IP track monitoring device 52 converts the call notification from the emergency phone 51 into an IP signal, and then sends an IP signal to the emergency phone server 53 in the A branch area and the emergency phone server 58 in the B branch area. do.

Here, the emergency telephone server 53 within the A branch jurisdiction cannot make a call to the reception desk 54 because control operations are difficult due to device failures, network failures, large-scale disasters, etc. in the A branch jurisdiction system.

The emergency telephone server 58 in the B branch jurisdiction receives an IP signal from the A branch IP line monitoring device 52 and sends a call to the reception desk 59 in the B branch jurisdiction and the reception desk 54 in the A branch jurisdiction. Here, the call from the emergency telephone server 58 is sent to the reception desk 59 within the B branch jurisdiction and the reception desk 54 within the A branch jurisdiction. The reception desk 59 and the reception desk 54 determine whether to discard the incoming call based on the IP address of the emergency telephone 51 that made the call and information on whether the A branch office system or the B branch office system is in normal operation or backup operation. Here, the reception desk 59 discards the incoming call. A call can be made between the emergency telephone 51 and the reception desk 54.

Note that calls from the emergency telephone 56 can be handled in the same way when control operations become difficult in the B branch area system due to device failure, network failure, large-scale disaster, etc. The emergency telephone server 53 in the A branch jurisdiction receives an IP signal from the B branch IP line monitoring device 57 and sends a call to the reception desk 54 in the A branch jurisdiction and the reception desk 59 in the B branch jurisdiction. Here, the call from the emergency telephone server 53 is sent to the reception desk 54 within the A branch jurisdiction and the reception desk 59 within the B branch jurisdiction. The reception desk 54 or reception desk 59 determines whether to discard the incoming call based on the IP address of the emergency telephone 56 that made the call and information on whether the A branch office system or the B branch office system is in normal operation or backup operation. Here, the reception desk 54 discards the incoming call. A call can be made between the emergency telephone 56 and the reception desk 59.

(Explanation of effects)
In the emergency telephone system of this embodiment, since the receiving desk makes a decision on whether to accept an incoming call or whether to discard the incoming call, the receiving desk can immediately respond to incoming calls from the emergency telephone all the time. For example, in the case of switching from normal operation to backup operation by a configuration that performs switching such as changing the calling route of an emergency telephone, it takes time to authenticate each device. There is also a risk that the route switching situation will not be completed normally and backup operations will not be possible. On the other hand, in the emergency telephone system of this embodiment, there is no route switching itself, so the above-mentioned risk can be avoided. Additionally, since the network is monitored, it is possible to detect communication interruptions due to equipment failures, etc., thereby avoiding interruptions in operation when the actual backup starts.

Furthermore, in the emergency telephone system of this embodiment, even if control operation becomes difficult due to equipment failure, network failure, large-scale disaster, etc. in either the A branch jurisdiction system or the B branch jurisdiction system, the emergency telephone and the reception desk You can make calls using . The reason for this is that when a call is made from an emergency telephone, the A branch jurisdiction IP track monitoring device 52 and the B branch jurisdiction IP track monitoring device 57 send information not only to the emergency telephone server within their own branch jurisdiction but also to an emergency telephone server in another jurisdiction. This is because the IP signal is transmitted using the IP address. In addition, the reception desk provides information indicating the IP address of the emergency call that made the call, the IP address of the emergency call server that was used, and the operational status of the A branch system and B branch system, such as whether they are in normal operation or backup operation. This is because it is determined whether to accept or discard an incoming call based on the above.

[Second embodiment]
Next, an emergency telephone system according to a second embodiment of the present invention will be described. As an emergency telephone system according to the second embodiment, a more detailed configuration and operation of the emergency telephone system according to the first embodiment will be explained. FIG. 3 is a block diagram for explaining an example of the emergency telephone system according to the second embodiment of the present invention and the operation when an emergency telephone call is received. FIG. 4 is a block diagram for explaining another example of the operation of the emergency telephone system according to the second embodiment of the present invention when an emergency call is received. FIG. 5 is a block diagram for explaining still another example of the operation of the emergency telephone system according to the second embodiment of the present invention when an emergency call is received. FIG. 6 is a flowchart for explaining the operation of the reception desk of the emergency telephone system.

(Explanation of configuration)
The expense telephone system in FIG. 3 includes multiple emergency telephones (#1, #2, ..., #n) within the A branch jurisdiction, an A branch IP track monitoring device 14, and an L3-SW (layer 3 switch) 19. and a plurality of emergency telephone servers (emergency telephone server 20, emergency telephone server 21, emergency telephone server 22). Further, the emergency telephone system in FIG. 3 includes an L3-SW (layer 3 switch) 23 and a plurality of reception desks (reception desk 24, reception desk 25, reception desk 26) within the jurisdiction of the A branch office.

Within the A branch jurisdiction, a plurality of emergency telephones (#1, #2, . . . , #n) are connected to the A branch IP line monitoring device 14. An emergency telephone server 20, an emergency telephone server 21, and an emergency telephone server 22 are connected in parallel between the L3-SW19 and the L3-SW23. The reception desk 24, reception desk 25, and reception desk 26 are connected to the L3-SW 23.

In the emergency telephone system shown in FIG. 3, there are multiple emergency telephones (#1, #2, ..., #n) within the B branch jurisdiction, an IP line monitoring device 18 within the B branch jurisdiction, and an L3-SW (layer 3 switch) 27. and a plurality of emergency telephone servers (emergency telephone server 28, emergency telephone server 29, emergency telephone server 30). Furthermore, the emergency telephone system of FIG. 3 includes an L3-SW (layer 3 switch) 31 and a plurality of reception desks (reception desk 32, reception desk 33, reception desk 34) within the B branch office.

Within the B branch jurisdiction, a plurality of emergency telephones (#1, #2, . . . , #n) are connected to the B branch IP line monitoring device 18. An emergency telephone server 28, an emergency telephone server 29, and an emergency telephone server 30 are connected in parallel between the L3-SW 27 and the L3-SW 31. The reception desk 32, reception desk 33, and reception desk 34 are connected to the L3-SW 31.

Further, the A branch IP track monitoring device 14 is connected to the L3-SW19 in the A branch office and the L3-SW27 in the B branch office, and the B branch IP track monitoring device 18 is connected to the L3-SW19 in the A branch office and L3-SW27 in the B branch office. It is connected to SW27 and L3-SW19 within the A branch office. The L3-SW23 within the jurisdiction of the A branch office and the L3-SW31 within the jurisdiction of the B branch office are connected to each other.

(Explanation of operation)
Next, the operation of the emergency telephone system of this embodiment will be explained. The operation of the emergency telephone system is normal operation when A branch jurisdiction system and B branch jurisdiction system are operating normally, and control in case of device failure, network failure, large scale disaster, etc. in A branch jurisdiction system and B branch jurisdiction system. The following explanation assumes backup operation when operation becomes difficult.

In the emergency telephone system of this embodiment, when making a call from the emergency telephone, the call is always made to the emergency telephone servers in both the own branch office jurisdiction and the backup branch office jurisdiction. In other words, when making a call from an emergency telephone within the jurisdiction of A branch, the call is made to both the emergency telephone server within the jurisdiction of branch A, which is within the jurisdiction of the own branch, and the emergency telephone server within the jurisdiction of branch B, which is within the jurisdiction of the backup branch. . Furthermore, when making a call from an emergency telephone within the jurisdiction of B branch, the call is made to both the emergency telephone server within the jurisdiction of B branch, which is within the jurisdiction of the own branch, and the emergency telephone server within the jurisdiction of A branch, which is within the jurisdiction of the backup branch. .

First, the operation of the emergency telephone system in normal operation will be explained with reference to FIG. As an example, when a call is made from one emergency telephone #1 within the A branch jurisdiction, a call notification is delivered to the A branch IP line monitoring device 14 to which the emergency telephone #1 is connected. The A branch area IP track monitoring device 14 converts the call notification from the emergency phone #1 into an IP signal, and then transmits the call notification from the emergency phone #1 to a plurality of emergency phone servers (emergency phone server 20, emergency phone server 21, emergency telephone server 22), and a plurality of emergency telephone servers (emergency telephone server 28, emergency telephone server 29, emergency telephone server 30) within the B branch jurisdiction.

The emergency telephone server 20, emergency telephone server 21, and emergency telephone server 22 within the jurisdiction of the A branch make a call to the corresponding reception desk 24, reception desk 25, and reception desk 26. Calls between emergency phone #1 and the reception desk are prioritized in advance, and the reception desk that started the call first makes the call to emergency phone #1, and incoming calls to other reception desks are cancelled. For example, if the reception desk that first initiated the call is reception desk 24, the call will be made to emergency telephone #1 at reception desk 24, and incoming calls to other reception desks (reception desk 25, reception desk 26) will be cancelled. .

The emergency telephone server 28, emergency telephone server 29, and emergency telephone server 30 in the B branch jurisdiction are connected to the corresponding reception desk 24, reception desk 25, and reception desk 26 in the A branch jurisdiction, and the corresponding reception desk 32, reception desk in the B branch jurisdiction. A call is made to the desk 33 and the reception desk 34. Since the emergency telephone system is in normal operation, calls from the emergency telephone servers 28, 29, and 30 are discarded at reception desks 32, 33, and 34, and reception desks 24, 25, and 26, as shown in FIG. be done.

Discarding this incoming call is determined based on the IP address of the emergency phone that made the call (here, emergency phone #1). Incoming calls accepted during normal operation are only calls received from emergency telephones within the jurisdiction of the branch office and those that have passed through the emergency telephone server within the jurisdiction of the branch office (here, any of the emergency telephone servers 20, 21, and 22). If the call is received from an emergency phone number within the jurisdiction of another branch, the reception desk will discard the call. Even if the call is received from an emergency telephone within the jurisdiction of one's own branch office, it is judged from the IP address of the server it passed through, and the call is received via an emergency telephone server within the jurisdiction of another branch office (in this case, one of emergency telephone servers 28, 29, or 30). If so, discard it.

Next, with reference to Figures 4 and 5, we will explain the operation of the emergency telephone system as a backup operation when control operations become difficult due to equipment failure, network failure, large-scale disaster, etc. in the system within A branch office. do. For example, as shown in FIG. 4, assume that a device failure or a network failure occurs in the emergency telephone server of the A branch office system. When a call is made from one emergency telephone #1 within the A branch jurisdiction, a call notification is delivered to the A branch IP line monitoring device 14 to which the emergency telephone #1 is connected. The A branch area IP line monitoring device 14 converts the call notification from the emergency phone #1 into an IP signal, and then transmits it to multiple emergency phone servers (emergency phone server 20, emergency phone server 21, emergency phone server 22) in the A branch area. ), and a plurality of emergency telephone servers (emergency telephone server 28, emergency telephone server 29, emergency telephone server 30) within the B branch jurisdiction. Here, since a device failure or network failure has occurred in the emergency telephone servers (emergency telephone server 20, emergency telephone server 21, emergency telephone server 22) of the A branch jurisdiction system, the emergency telephone server of the A branch jurisdiction system No calls are made to the reception desk 24, reception desk 25, or reception desk 26.

The emergency telephone server 28, emergency telephone server 29, and emergency telephone server 30 in the B branch jurisdiction are connected to the corresponding reception desk 24, reception desk 25, and reception desk 26 in the A branch jurisdiction, and the corresponding reception desk 32, reception desk in the B branch jurisdiction. A call is made to the desk 33 and the reception desk 34. Here, since the A branch office system is in backup operation, calls from the emergency telephone servers 28, 29, and 30 are discarded at the reception desks 32, 33, and 34, as shown in FIG. Discarding this incoming call is determined based on the IP address of the emergency phone that made the call (here, emergency phone #1). Due to the function of the integrated maintenance console explained with reference to Figure 1, within the B branch office, it is possible to understand which equipment in the A branch office has experienced a failure, and taking this information into account, 33, the reception desk 34 decides whether to accept or cancel the incoming call. Here, a failure has occurred around the emergency telephone servers 20, 21, and 22 of the A branch, but no failure has occurred around the reception desks 24, 25, and 26 of the A branch. As shown in FIG. 4, calls from the emergency telephone servers 28, 29, and 30 are discarded at the reception desks 32, 33, and 34 as the incoming calls are accepted at the stations 24, 25, and 26.

The reception desk 24, reception desk 25, and reception desk 26 in the jurisdiction of the A branch will be able to receive calls from the emergency telephone in the jurisdiction of the own branch and the emergency telephone server in the jurisdiction of another branch (here, when the system in the jurisdiction of the A branch is in backup operation). It accepts incoming calls via any of the emergency telephone servers 28, 29, and 30). Calls between emergency phone #1 and the reception desk are prioritized in advance, and the reception desk that started the call first makes the call to emergency phone #1, and incoming calls to other reception desks are cancelled. For example, if the reception desk that first initiated the call is reception desk 24, the call will be made to emergency telephone #1 at reception desk 24, and incoming calls to other reception desks (reception desk 25, reception desk 26) will be cancelled. .

Next, we will explain the case where the A branch system is in backup operation and a device failure or network failure occurs in the emergency telephone server or reception desk of the A branch system, as shown in Figure 5. .

When a call is made from one emergency telephone #1 within the A branch jurisdiction, a call notification is delivered to the A branch IP line monitoring device 14 to which the emergency telephone #1 is connected. The A branch area IP line monitoring device 14 converts the call notification from the emergency phone #1 into an IP signal, and then transmits it to multiple emergency phone servers (emergency phone server 20, emergency phone server 21, emergency phone server 22) in the A branch area. ), and a plurality of emergency telephone servers (emergency telephone server 28, emergency telephone server 29, emergency telephone server 30) within the B branch jurisdiction. Here, since a device failure or network failure has occurred in the emergency telephone servers (emergency telephone server 20, emergency telephone server 21, emergency telephone server 22) of the A branch jurisdiction system, the emergency telephone server of the A branch jurisdiction system No calls are made to the reception desk 24, reception desk 25, or reception desk 26. In addition, since there is a device failure or network failure at the reception desks (reception desk 24, reception desk 25, reception desk 26) of the A branch system, calls from the emergency telephone server will be accepted at the reception desk of the A branch system. I can't.

The emergency telephone server 28, emergency telephone server 29, and emergency telephone server 30 in the jurisdiction of the B branch office are connected to the corresponding reception desk 32, reception desk 33, send a call to the reception desk 34. Due to the function of the integrated maintenance console explained with reference to Figure 1, within the B branch office, it is possible to understand which equipment in the A branch office has experienced a failure, and taking this information into account, 33, the reception desk 34 decides whether to accept or cancel the incoming call. Here, a failure has occurred around the emergency telephone servers 20, 21, and 22 of the A branch, and a failure has occurred around the reception desks 24, 25, and 26 of the A branch, so the emergency telephone server 28 , 29, and 30 are accepted at reception desks 32, 33, and 34 of branch B.

When the A branch system is in backup operation, the reception desk 32, reception desk 33, and reception desk 34 in the B branch jurisdiction receive calls from the emergency telephone in the A branch jurisdiction, and the emergency telephone server in the B branch jurisdiction (here, It accepts incoming calls via any of the emergency telephone servers 28, 29, and 30). Calls between emergency phone #1 and the reception desk are prioritized in advance, and the reception desk that started the call first makes the call to emergency phone #1, and incoming calls to other reception desks are cancelled. For example, if the reception desk that first initiated the call is reception desk 32, the reception desk 32 will make the call to emergency telephone #1, and incoming calls to other reception desks (reception desk 33, reception desk 34) will be cancelled. .

(Operation of reception desk)
Next, regarding the emergency telephone system of this embodiment, the concept of accepting or discarding the reception desk as seen from the reception desk will be explained. FIG. 6 is a flowchart for explaining the operation of the reception desk of the emergency telephone system of this embodiment.

First, either the reception desk in the A branch office (reception desks 24, 25, 26) or the reception desk in the B branch office (reception desks 32, 33, 34) receives an emergency call (step S1). The reception desk determines whether the call is received from an emergency telephone within its own branch office (step S2). This determination is made based on the IP address of the emergency call that made the call. If the call is received from an emergency telephone within the jurisdiction of the own branch office (YES in step S2), the reception desk determines whether the call is received via an emergency telephone server within the jurisdiction of the own branch office (step S3). If the call is received via the emergency telephone server within the jurisdiction of the own branch office (YES in step S3), the reception desk displays an incoming call and accepts the call from the emergency telephone.

If the call is not received from an emergency telephone within the jurisdiction of the own branch (NO in step S2), that is, if the call is received from an emergency telephone within the jurisdiction of another branch, the reception console receives the call based on the input monitoring signal indicating the server operation status. , it is determined whether the emergency telephone system is in backup operation or not, in other words, whether it is in backup operation or normal operation (step S4). If the emergency telephone system is in normal operation (NO in step S4), the reception console discards the incoming call from the emergency telephone. If the emergency telephone system is in backup operation (YES in step S4), the reception desk displays an incoming call and accepts the incoming call from the emergency telephone.

If the determination in step S3 is NO, in other words, the incoming emergency call is not via the emergency telephone server within the jurisdiction of the own branch office (NO in step S3), the reception desk, based on the input monitoring signal indicating the server operation status, It is determined whether the system within its own branch office is in backup operation, in other words, whether it is in backup operation or normal operation (step S5). If the own branch office system is in normal operation (NO in step S5), the reception console discards the incoming call. If the own branch office system is in backup operation (YES in step S5), the reception desk displays an incoming call and also accepts incoming calls from emergency telephones via the emergency telephone server within the branch office jurisdiction.

(Explanation of effects)
In the emergency telephone system of this embodiment, as in the first embodiment, the reception desk makes the decision to accept or discard an incoming call, so if there are always calls from the emergency telephone, the reception desk Able to respond immediately. For example, in the case of switching from normal operation to backup operation by a configuration that performs switching such as changing the calling route of an emergency telephone, it takes time to authenticate each device. There is also a risk that the route switching situation will not be completed normally and backup operations will not be possible. On the other hand, in the emergency telephone system of this embodiment, there is no route switching itself, so the above-mentioned risk can be avoided. Additionally, since the network is monitored, it is possible to detect communication interruptions due to equipment failures, etc., thereby avoiding interruptions in operation when the actual backup starts.

Furthermore, in the emergency telephone system of this embodiment, as in the first embodiment, if control operation becomes difficult due to equipment failure, network failure, large-scale disaster, etc. in either the A branch jurisdiction system or the B branch jurisdiction system. However, you can make calls between the emergency phone and the reception desk. The reason for this is that when a call is made from an emergency telephone, the A branch IP track monitoring device 14 and the B branch IP track monitoring device 18 not only connect to the emergency telephone server within their own branch but also to the emergency telephone servers in other branch jurisdictions. This is because IP signals are being sent to the destination. In addition, the reception desk provides information indicating the IP address of the emergency call that made the call, the IP address of the emergency call server that was used, and the operational status of the A branch system and B branch system, such as whether they are in normal operation or backup operation. This is because it is determined whether to accept or discard an incoming call based on the above.

Furthermore, in the emergency telephone system of this embodiment, it is determined whether to accept or discard an incoming call, depending on the location and content of the device failure or network failure in the A branch office system or the B branch office system. As a result, if a device failure or network failure occurs at the reception desk of the A branch system, the call will be received at the reception desk of the B branch jurisdiction via the emergency telephone server within the B branch jurisdiction, and the emergency call will be sent to the reception desk of the A branch jurisdiction system. You can make phone calls.

[Other embodiments]
Although preferred embodiments of the present invention have been described above, the present invention is not limited thereto. In the above-described embodiment, a system has been described in which devices of two intra-jurisdictional systems, such as the A-branch intra-jurisdictional system and the B-branch intra-jurisdictional system, are connected, but the number of these intra-jurisdictional systems can be three or more. FIG. 7 is a block diagram for explaining an emergency telephone system according to another embodiment of the present invention. The emergency telephone system in FIG. 7 includes a C branch system in addition to the A branch system and the B branch system shown in FIG. The configurations of the A branch office system and the B branch office system are as described in the first embodiment. The C branch jurisdiction system of the emergency telephone system in FIG. 7 includes an emergency telephone 61, a C branch jurisdiction IP (Internet Protocol) track monitoring device 62, an emergency telephone server 63, a reception desk 64, and a general maintenance console 65. .

The general maintenance console 65 monitors the IP line monitoring device 62 within the C branch jurisdiction, the emergency telephone server 63, and the reception desk 64, and can ascertain which device among these has experienced a failure. When a device failure or a network failure occurs in each device monitored by the general maintenance console 65, an alarm is displayed on the general maintenance console 65. Further, in this embodiment, the general maintenance console 55, the general maintenance console 60, and the general maintenance console 65 are connected to each other, and the branch offices cooperate and share information. By sharing this information, the general maintenance console 55, the general maintenance console 60, and the general maintenance console 65 can distinguish devices in which a failure has occurred not only within their own branch office but also within other branch offices.

In this embodiment, emergency calls are made from emergency telephones 51, 56, and 61. An emergency call made from the emergency telephone 61 is received at the reception desk 64 of the C branch via the C branch jurisdiction IP track monitoring device 62 to which the emergency telephone 61 is connected, via the C branch's emergency telephone server 63. do. Furthermore, in the emergency telephone system of this embodiment, when the A branch area IP track monitoring device 52 makes a call from the A branch emergency telephone 51, the A branch emergency telephone server 53, the B branch emergency telephone server 58, A call is made to all of the emergency telephone server 63 of branch C. In addition, in the emergency telephone system of this embodiment, when the B branch area IP line monitoring device 57 makes a call from the B branch emergency telephone 56, the B branch emergency telephone server 58, the A branch emergency telephone server 53, A call is made to all of the emergency telephone server 63 of branch C. Furthermore, in the emergency telephone system of this embodiment, when a call is made from the emergency telephone 61 of the C branch, the C branch in-service IP track monitoring device 62 connects the C branch's emergency telephone server 63 and the A branch's emergency telephone server 53. , and the emergency telephone server 58 of branch B.

The reception desk 54, the reception desk 59, and the reception desk 64 determine whether the current emergency telephone system is in normal operation or backup operation, and after determining the incoming call from the emergency telephone, decide whether to accept or discard the call. conduct. The general maintenance console 55, the general maintenance console 60, and the general maintenance console 65 are interconnected and cooperate between branch offices and share information, so failures can occur not only within the jurisdiction of one's own branch office but also within the jurisdiction of other branch offices. equipment can be distinguished. Taking this shared information into consideration, the reception desk 54, reception desk 59, and reception desk 64 determine whether to accept or discard the call after determining the incoming call from the emergency telephone.

For example, if there is a failure around the emergency telephone server and reception desk at branch A, emergency calls made from the emergency telephone at branch A will be accepted at the reception desk at branch B, and then at the reception desk at branch C. Alternatively, it may be accepted at the reception desk of B branch or C branch. In this case, a criterion is set, for example, such that the call should be accepted at the reception desk of the branch office that is close in a straight line to the emergency telephone of the A branch office.

(Explanation of effects)
In the emergency telephone system of this embodiment, as in the first embodiment, the reception desk makes the decision to accept or discard an incoming call, so if there are always calls from the emergency telephone, the reception desk Able to respond immediately. For example, in the case of switching from normal operation to backup operation by a configuration that performs switching such as changing the calling route of an emergency telephone, it takes time to authenticate each device. There is also a risk that the route switching situation will not be completed normally and backup operations will not be possible. On the other hand, in the emergency telephone system of this embodiment, there is no route switching itself, so the above-mentioned risk can be avoided. Additionally, since the network is monitored, it is possible to detect communication interruptions due to equipment failures, etc., thereby avoiding interruptions in operation when the actual backup starts.

Furthermore, in the emergency telephone system of this embodiment, even if control operation becomes difficult due to equipment failure, network failure, large-scale disaster, etc. in the A branch jurisdiction system, B branch jurisdiction system, or C branch jurisdiction system, the emergency telephone and reception You can make calls with the machine. The reason for this is that when a call is made from an emergency telephone, the A branch IP track monitoring device 52, the B branch IP track monitoring device 57, and the C branch IP track monitoring device 62 are activated only by the emergency telephone server within the own branch office. This is because the IP signal is sent to an emergency telephone server in a different jurisdiction. The reception desk also displays the IP address of the emergency call that made the call, the IP address of the emergency call server that was used, and whether the A branch system, B branch system, or C branch system is in normal operation or backup operation. This is because it is determined whether to accept or discard an incoming call based on information indicating the operational status.

14, 52 A branch office jurisdiction IP track monitoring device 18, 57 B branch office jurisdiction IP track monitoring device 19, 23, 27, 31 L3-SW
20, 21, 22, 28, 29, 30, 53, 58, 63 Emergency telephone server 24, 25, 26, 32, 33, 34, 54, 59, 64 Reception desk 51, 56, 61 Emergency telephone 55, 60, 65 General maintenance console 62 C branch office IP line monitoring device

Claims (6)

a first track monitoring device connected to an emergency telephone in a first jurisdiction; an emergency telephone server in the first jurisdiction connected to the first track monitoring device; and a reception desk connected to the emergency telephone server in the first jurisdiction. a first general maintenance console that monitors the first track monitoring device, the emergency telephone server in the first jurisdiction, and the reception desk connected to the emergency telephone server in the first jurisdiction;
a second track monitoring device connected to an emergency telephone in a second pipe different from the first pipe; an emergency telephone server in the second pipe connected to the second track monitoring device; monitors the reception board connected to the emergency telephone server, the first track monitoring device, the emergency telephone server in the first jurisdiction, and the reception desk connected to the emergency telephone server in the first jurisdiction; a second central maintenance console connected to the maintenance console ;
The first track monitoring device notifies an emergency telephone server in the first jurisdiction and an emergency telephone server in the second jurisdiction of the incoming call from the emergency telephone in the first jurisdiction,
A reception desk connected to the emergency telephone server in the first jurisdiction is configured to receive calls from the emergency telephone in the first jurisdiction to the emergency telephone server in the first jurisdiction when the emergency telephone server in the first jurisdiction is in normal operation. A call connection is made for incoming calls, and when the emergency telephone server in the first jurisdiction is in backup operation , calls are made via the first and second general maintenance consoles for incoming calls to the emergency telephone server in the second jurisdiction. make a connection ,
Emergency phone system. The second line monitoring device notifies the emergency telephone server in the second jurisdiction and the emergency telephone server in the first jurisdiction of the incoming call from the emergency telephone in the second jurisdiction,
A reception desk connected to the emergency telephone server in the second jurisdiction is configured to handle calls from the emergency telephone in the second jurisdiction to the emergency telephone server in the second jurisdiction when the emergency telephone server in the second jurisdiction is in normal operation. A call connection is made for incoming calls, and when the emergency telephone server in the second jurisdiction is in backup operation, incoming calls via the emergency telephone server in the first jurisdiction are connected via the first and second general maintenance consoles. Make a call connection ,
The emergency telephone system according to claim 1. A third track monitoring device connected to the emergency telephone in the third jurisdiction, an emergency telephone server in the third jurisdiction connected to the third track monitoring device, and a reception desk connected to the emergency telephone server in the third jurisdiction. , the third track monitoring device, the emergency telephone server in the third jurisdiction, and the reception desk connected to the emergency telephone server in the third jurisdiction, and are connected to the first and second general maintenance consoles. further including a third central maintenance console ;
The third track monitoring device notifies an emergency telephone server in the third jurisdiction, an emergency telephone server in the second jurisdiction, and an emergency telephone server in the first jurisdiction of the incoming call from the emergency telephone in the third jurisdiction,
The reception desk connected to the emergency telephone server in the third jurisdiction is configured to handle calls from the emergency telephone in the third jurisdiction to the emergency telephone server in the third jurisdiction when the emergency telephone server in the third jurisdiction is in normal operation. When a call connection is made for an incoming call , and the emergency telephone server in the third jurisdiction is in backup operation, the incoming call via the emergency telephone server in the second jurisdiction or the incoming call via the emergency telephone server in the first jurisdiction, making a call connection via a first, second, third or said second and third general maintenance console ;
The emergency telephone system according to claim 2. A first track monitoring device connected to an emergency telephone in a first jurisdiction, an emergency telephone server in the first jurisdiction connected to the first track monitoring device, and a reception desk connected to the emergency telephone server in the first jurisdiction. and a first general maintenance console that monitors the first track monitoring device, the emergency telephone server in the first jurisdiction, and the reception desk connected to the emergency telephone server in the first jurisdiction.
A second track monitoring device connected to an emergency telephone in a second pipe different from the first pipe, an emergency telephone server in the second pipe connected to the second track monitoring device, and an emergency telephone server in the second pipe Monitors a reception board connected to a telephone server, the first line monitoring device, an emergency telephone server in the first jurisdiction, and a reception desk connected to the emergency telephone server in the first jurisdiction, and performs the first general maintenance. A call connection method for an emergency telephone system including a second general maintenance console connected to a console, the method comprising:
The first track monitoring device notifies an emergency telephone server in the first jurisdiction and an emergency telephone server in the second jurisdiction of the incoming call from the emergency telephone in the first jurisdiction,
A reception desk connected to the emergency telephone server in the first jurisdiction is configured to receive calls from the emergency telephone in the first jurisdiction to the emergency telephone server in the first jurisdiction when the emergency telephone server in the first jurisdiction is in normal operation. A call connection is made for incoming calls, and when the emergency telephone server in the first jurisdiction is in backup operation, a call connection is made for incoming calls to the emergency telephone server in the second jurisdiction via the first and second general maintenance consoles. I do ,
How to connect to the emergency telephone system. The second line monitoring device notifies the emergency telephone server in the second jurisdiction and the emergency telephone server in the first jurisdiction of the incoming call from the emergency telephone in the second jurisdiction,
A reception desk connected to the emergency telephone server in the second jurisdiction is configured to handle calls from the emergency telephone in the second jurisdiction to the emergency telephone server in the second jurisdiction when the emergency telephone server in the second jurisdiction is in normal operation. A call connection is made for incoming calls, and when the emergency telephone server in the second jurisdiction is in backup operation, incoming calls via the emergency telephone server in the first jurisdiction are made via the first and second general maintenance consoles. Make a call connection ,
A call connection method for an emergency telephone system according to claim 4. A third track monitoring device connected to the emergency telephone in the third jurisdiction, an emergency telephone server in the third jurisdiction connected to the third railway monitoring device, and a reception desk connected to the emergency telephone server in the third jurisdiction. a third track monitoring device, an emergency telephone server in the third jurisdiction, and a reception desk connected to the emergency telephone server in the third jurisdiction, and a third track monitoring device connected to the second general maintenance console. The emergency telephone system further includes a central maintenance console of
The third track monitoring device notifies an emergency telephone server in the third jurisdiction, an emergency telephone server in the second jurisdiction, and an emergency telephone server in the first jurisdiction of the incoming call from the emergency telephone in the third jurisdiction,
The reception desk connected to the emergency telephone server in the third jurisdiction is configured to handle calls from the emergency telephone in the third jurisdiction to the emergency telephone server in the third jurisdiction when the emergency telephone server in the third jurisdiction is in normal operation. When a call connection is made for an incoming call , and the emergency telephone server in the third jurisdiction is in backup operation, the incoming call via the emergency telephone server in the second jurisdiction or the incoming call via the emergency telephone server in the first jurisdiction, making a call connection via a first, second, third or said second and third general maintenance console ;
A call connection method for an emergency telephone system according to claim 5.

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