JPH11243447A - Emergency instruction device and instruction transmission method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely transmit an instruction to fire fighters at a fire station without performing complicated control operation, even when a fault occurs to a route of a private line. SOLUTION: When a line trunk 5 detects the fault of a private line 11, a central processing circuit 3 reads a subscriber's number of a fire station 12 concerned from a storage circuit 4, demands at once the line trunk 5 line in normal line state and a local line trunk 6, and has them transmit the subscriber' s number which is read from this local trunk 6. From this, an extension telephone set 8 is called by way of a PBX 10 installed at the fire station 12 concerned via a public network 7. As a result, an instruction is transmitted to fire fighters, enabling them to be dispatched as soon as possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency command device and, more particularly, to a command transmission method in conjunction with an extension line.

[0002] When a fire or sudden illness occurs, "119
When the emergency call is sent to the emergency command device installed at the fire department, the emergency command device is used to receive a 119 call and to contact a hospital or related organization, and to provide an ambulance or fire truck. It is composed of a command terminal installed at each fire department for giving an instruction to dispatch, a display panel for displaying an in-service map, vehicle and hospital information, and weather information, and a command control device for controlling these.

[0003] That is, the emergency command device is "119"
This is a fire-fighting communication system for receiving a report, accurately grasping a disaster location, promptly dispatching necessary rescue vehicles, and performing rescue activities by radio communication after dispatch.

By the way, when dispatching a vehicle of the fire department in response to the "119" report, a command terminal installed in the fire department is activated through an emergency command device and a dedicated line provided between the fire department, and a command is issued. The transmission method is adopted.

The present invention relates to a method for transmitting a command to an extension telephone at a fire department via a public network as a backup measure when a failure occurs in the route of the dedicated line. That is, according to the present invention, the subscriber number of the backup public network is registered in advance in the memory of the command control device, and the line of the dedicated line is constantly monitored. And transmitting a command.

[0006]

2. Description of the Related Art In the prior art, line monitoring of a dedicated line is performed by connecting a line switching device having a function of monitoring a line of a dedicated line and a function of switching a line due to communication failure of the dedicated line. If it detects that communication is not possible at that time, the switch is controlled by the control unit in the line switching device, and the line is automatically switched from the dedicated line to the public line or from the public line to the dedicated line, and the communication is possible. It communicates on the line.

A conventional technique of this kind will be described below in
An example of a “communication line switching device” disclosed in Japanese Patent Publication No. 39937 (hereinafter referred to as a first prior art example) will be described with reference to the accompanying drawings.

FIG. 6 shows a communication system disclosed in the first prior art example. The illustrated communication system has first and second modems 101 and 102 facing each other. First and second modems 101 and 10
2 is connected to first and second line switching devices 103 and 104 on the line side, respectively. Between the first line switching device 103 and the second line switching device, a first dedicated line 105 for transmitting data from the first modem 101 to the second modem 102, and a second modem. A second dedicated line 106 for transmitting data from the device 102 to the first modem 101 is connected.

The first line switching device 103 tests the state of a line that can be transmitted within the transmission band of the line without affecting the data signals of the first and second modems 101 and 102 during data communication. A test signal generator 112 for generating a test signal ts to be performed, a filter 113 for extracting only the data signal ds from a signal on the second dedicated line 106,
Test signal t returned from second line switching device 104
s, a filter 114 for taking out the test signal ts, a measuring unit 115 for receiving the test signal ts and detecting the line state, and the first and second public lines 10 between the second line switching device 104.
8, 109 and third and fourth public lines 110, 1;
11 from the first and second dedicated lines 105 and 106 to the second line switching device 104 for generating the first and second die dial signals dy1 and dy2 for connecting First to fourth
For instructing the switching operation to the public lines 108 to 111 and the code for instructing the reverse operation, and the first and second public lines 108 and 109 and the third and fourth public lines A command code generator 117 for generating first and second command codes Co1 and Co2 for transmitting identification codes for confirming whether or not 110 and 111 are normally connected to the second switching device 104; The response code receiving unit 118 that receives a response from the second line switching device 104 and the lines connected to the first and second modems 101 and 102 are first and second dedicated lines 105 and 106. , Or switches 119 to 122 for switching between the first to fourth public lines 108 to 111 and these switches 119 to 122, etc. And a Gosuru controller 123.

On the other hand, the second line switching device 104
A filter 124 for extracting only the data signal ds1 from the signal on the dedicated line 105, and a first line switching device 103
, A filter 125 for extracting only the test signal ts that is looped back, a call signal receiving unit 126 for detecting a call signal ca from the switching network 107, and a first line switching device 103 for notifying the recognition code and the arrival of the call. A response code generator 128 for transmitting an incoming response code, switches 129 to 132 for switching lines, and a controller 133 for controlling these switches 129 to 132 are provided.

In the communication system having such a configuration, the first and second line switching devices 103 and 104 connected to the opposing first and second modems 101 and 102 have the first and second line switching devices. Transmit and receive test signals ts that do not affect data communication via dedicated lines 105 and 106
Of the dedicated lines 105 and 106 are monitored.

First and second dedicated lines 105 and 1
When the measuring unit 115 detects that the communication unit 06 has become incommunicable, the first line switching device 103
A first dial number dy1 of the public line stored in advance to connect the public lines 108 and 109 of the public network is sent to the switching network 107 through the first public line 108.

When the call signal ca is sent from the switching network 107 to the second public line 109, the second line switching device 10
In step 4, connection with the second public line 109 is made.

First and second public lines 108 and 1
When 09 is connected, a response signal is sent from second line switching device 104 to first line switching device 103 via first and second public lines 108 and 109. The first line switching device 103 receiving this response signal
Sends a recognition signal to the first public line 108.

When the third and fourth public lines 110 and 111 are connected in the same manner, the first line switching device 103 transmits an identification signal to the third public line 110.

The second line switching device 104 which has received the two recognition signals transmits the first and second public lines 108, 10
9 and the third and fourth public lines 110 and 111 are confirmed to be properly connected, a confirmation signal is sent to the fourth public line 111.

Upon receiving this confirmation signal, the first line switching device 103 reconfirms that the first and second dedicated lines 105 and 106 are in a communication disabled state.
In the second line switching devices 103 and 104, the switches 119 to 122 and 129 to 132 are operated to switch the line from the dedicated line to the public line.

First and second dedicated lines 105 and 1
06 is in a communication-disabled state, the test signal ts is transmitted / received in a state where communication is performed via the first to fourth public lines 108 to 111, and communication is possible from line monitoring of the dedicated line. When the measurement unit 115 detects that the communication has been switched, the first line switching device 103 prepares for switching from the public line to the dedicated line and simultaneously transmits a restoration signal to the second line switching device 104.

When the restoration signal is transmitted, the second line switching device 104 prepares for switching from the public line to the dedicated line and simultaneously transmits the restoration signal to the first line switching device 103.

First line switching device 1 that has received a recovery signal
03 switches the line from the public line to the dedicated line by restoring the switch on the public line side.

Japanese Patent Application Laid-Open No. 3-179860 (hereinafter referred to as a second prior art example) discloses that a general telephone terminal can be accommodated as a command terminal simultaneously with a special command terminal, and the type of the command terminal is identified. "Command terminal control method" that enables efficient control of the command terminal without the need for control
Is disclosed. That is, in the second prior art example, the same activation signal is transmitted to the general telephone terminal and the special command terminal. If there is a response within the specified time,
A signal sound for audibly indicating occurrence of an emergency is sent to the special command terminal. If there is no response, a normal call signal is sent to the general telephone to wait for a response, and emergency command information is notified to the special command terminal and the general telephone terminal. As a result, the general telephone terminal can be accommodated as the command terminal, and the command terminal can be efficiently controlled.

[0022]

The communication system shown in the first prior art example has the following problems.

The first problem is that the line status is monitored on the dedicated line provided between the modems, and the line is switched from the dedicated line to the public line when the dedicated line is disabled. In order to automatically switch the communication line from the public line to the dedicated line by restoring the dedicated line, it is necessary to connect a line monitoring means and a switching device equipped with a switch for switching the line. It is to be.

The second problem is that, even in the line switching operation between the dedicated line and the public line, after the switch of one line is restored and the connection is disconnected, the switch of the other line is controlled and connected. And the communication is performed, and the control is very complicated.

A third problem is that it is necessary to switch the line between the dedicated line and the public line in accordance with the above-mentioned operation method according to the state of the line being disabled and the line being restored.

Further, the system shown in the second prior art example merely determines whether a command terminal is a special command terminal or a general telephone terminal based on the presence or absence of a response. It does not disclose anything about what to do when a failure occurs in the route of the dedicated line connected to the terminal.

Accordingly, an object of the present invention is to provide an emergency command device and a command transmission method that do not require connection of a line switching device.

Another object of the present invention is to enable a command to be reliably transmitted to a fire department without performing complicated control operations even when a failure occurs in a route of a dedicated line.
An object of the present invention is to provide an emergency command device and a command transmission method.

[0029]

According to the present invention, a step of transmitting line fault information to a central processing circuit when a line fault is detected in a line trunk having a line monitoring function connected to a dedicated line, A central processing circuit receiving the line fault information, reading a subscriber number of the relevant station from a storage circuit having a memory in which the subscriber number is registered corresponding to a backup station; A processing circuit for capturing a line trunk at the same time as capturing a line trunk having a normal line state, and transmitting the read subscriber number to the line trunk; and And calling the extension telephone via a private branch exchange installed at the corresponding fire department.

Further, according to the present invention, a command base for receiving a report and operating a command, a command control device connected to the command base, and connected to the command control device via a dedicated line and a public network. In the emergency command device having a station, the command control device is connected to the dedicated line, a line trunk having a line monitoring function for the dedicated line, an office trunk connected to the public network, A command control trunk for transmitting a command tone and a command voice to the line trunk and the central office trunk, a storage circuit having a memory of a backup subscriber number, and reading of the corresponding subscriber number from the storage circuit. A central processing circuit for controlling transmission of the read subscriber number to the central office trunk; and the central processing circuit controls the line trunk, the central office trunk, and Emergency command device is obtained, characterized by a switch for connecting said instruction control trunk.

[0031] In the above emergency command device, at the station, a command terminal device connected to the dedicated line and transmitting a command message to a fire department member, a private branch exchange connected to the public network, and a private branch exchange It is preferable that an extension telephone connected to the terminal is installed.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the configuration of an emergency command device (fire fighting communication system) according to the present invention. In FIG.
The illustrated emergency command device is a command table 1 for receiving a "119" report and operating commands, a command control device 14, a fire station 12, and a dedicated command device provided between the command control device 14 and the fire station 12. It comprises a line 11 and a public network 7.

The command control unit 14 controls the line trunk 5 connected to the dedicated line 11 and having a line monitoring function, the office trunk 6 connected to the public network 7, the office trunk 5 and the office trunk 6. A command control trunk 13 for transmitting a command tone and a command voice, a storage circuit 4 having a memory (to be described later) of a backup subscriber number, reading the corresponding subscriber number from the storage circuit 4, 6 comprises a central processing unit 3 for controlling transmission of the subscriber number read to 6 and a switch 2 for connecting each trunk by the central processing unit 3.

On the other hand, the fire station 12 has a command control device 14
Command terminal device 9 for transmitting a command message sent from a telephone line via a dedicated line 11 to firefighters, a private branch exchange (PBX) 10 connected to a public network 7, a command control device 14, a public network 7 and a PBX 10 An extension telephone 8 connected via a telephone is installed.

FIG. 5 shows the contents of the memory in the storage device 4. As shown in FIG. 5, a backup subscriber number corresponding to each fire department is registered in the memory.

The operation of the present invention in the emergency command device (fire fighting communication system) having the above configuration will be described below with reference to FIG.

Assume that the central processing circuit 3 receives that the line trunk 5 monitoring the state of the dedicated line 11 has detected a line failure on the dedicated line 11. in this case,
The central processing circuit 3 controls the switch 2 to take in the line fault information, and sends out the line fault information to the command board 1.
As a result, the command board 1 indicates that a line failure has occurred.

It is assumed that a command operation is performed on the command table 1 during the occurrence of a line failure. In this case, since the central processing circuit 3 having received the command information has the line fault information, the central processing circuit 3 reads the subscriber number assigned to the corresponding fire department from the memory shown in FIG. After that, the central processing circuit 3 switches the switch 2 so as to capture the line trunk 5 and simultaneously capture the office line trunk 6.
Control.

Subsequently, the central processing circuit 3 causes the captured local line trunk 6 to transmit the backup subscriber number read from the storage device 4. The transmitted subscriber number is sent from the central office trunk 6 to the corresponding fire department 12 via the public network 7. The fire station 12 calls the corresponding extension telephone 8 via the PBX 10 installed in the fire station 12.

A response signal by the off-hook from the called extension telephone 8 is detected by the central office trunk 6. In response to the detection of the response signal by the central office trunk 6,
The central processing circuit 3 controls the switch 2 to connect the command control trunk 13 to the line trunk 5 and the office trunk 6.

After such a connection operation is performed, a transmission operation of a command tone as shown in FIG. 3 and a transmission operation of a command by the voice of the operator as shown in FIG. 4 are performed in this order. .

Referring to FIG. 3, the operation when transmitting the command tone will be described.

First, a command operation instructing that a command tone is to be transmitted from the command table 1 is performed. Thereby, the central processing circuit 3 connects the command base 1 and the command control trunk 13 via the switch 2 and also connects the command control trunk 13 and the tone generator for the command tone.

Thereafter, the central processing circuit 3 sends a corresponding command tone signal from the tone sound source to the line trunk 5 and the office line trunk 6 via the switch based on the tone type designated by the command operation. Send out.

This command tone signal is transmitted to the line trunk 5
Is transmitted to another station (station B) via the dedicated line 11 and is also transmitted from the station trunk 6 to the fire station 12 (station A) via the public network 7. At another station (station B), this command tone signal is sent as an AMP start signal to the command terminal device 9 installed there, and an amplifier (not shown) in the command terminal device 9 is started. A command tone flows from a speaker (not shown). On the other hand, at the A station (fire department 12), the command tone signal is sent to the extension telephone 8 via the PBX 10. At this time, since the extension telephone 8 is in the off-hook state, a command tone flows from the extension telephone 8.

Next, with reference to FIG. 4, an operation for transmitting a command by the voice of the operator will be described.

After the command tone described with reference to FIG. 3 is transmitted, the command voice of the operator uttered at the command table 1 is transmitted from the command table 1 to the command control trunk 13 via the switch 2.

The command voice is transmitted from the command control trunk 13.
Is transmitted to the line trunk 5 and the office line trunk 6 connected to the trunk.

The command voice is transmitted from the line trunk 5 to the command terminal device 9 installed at the station B via the dedicated line 11 and from the station trunk 6 via the public network 7 to the station A (the fire station 12). ) Are transmitted to the corresponding extension telephones 8 via the PBXs 10 installed in the respective telephones. As a result, at the B station, the command terminal device 9 sends the signal to the A station (fire department 1).
In 2), by sending a command message from the extension telephone 8, the command is transmitted to the dispatching member, and the dispatch of an ambulance or a fire engine is urged.

The present invention is not limited to the above-described embodiments, and it is needless to say that various modifications can be made without departing from the gist of the present invention. For example, in the above-described embodiment, an example in which the report is the "119" report and the station is a fire station has been described, but it is needless to say that the present invention is not limited to this.

[0052]

As described above, according to the present invention, a line trunk function connected to a dedicated line is provided with a line monitoring function, and a backup subscriber number is registered in a storage circuit due to a line failure even on the dedicated line. A public line is linked as a backup with the memory included, and the command is transmitted from the extension telephone set at the fire department via the public network, so the command is transmitted using a normal dedicated line In almost the same way, the command can be transmitted to fire department personnel and the like.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an emergency command device (fire fighting communication system) according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a connection relationship with a target line when a command is activated in the embodiment.

FIG. 3 is a sequence diagram for explaining an operation when a command tone is transmitted in the emergency command device of the embodiment.

FIG. 4 is a sequence diagram for explaining an operation when the operator issues a command by voice in the emergency command device of the embodiment.

FIG. 5 is a format diagram showing a configuration of a backup memory included in the storage circuit in FIG. 1;

FIG. 6 is a block diagram showing a configuration of a communication system disclosed in a conventional technology (Japanese Patent Laid-Open No. 62-39937).

[Explanation of Reference Codes] 1 command board 2 switch 3 central processing circuit 4 storage circuit 5 line trunk 6 local line trunk 7 public network 8 extension telephone 9 command terminal device 10 private branch exchange (PBX) 11 dedicated line 12 fire department 13 command control trunk 14 Command controller

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04M 3/42 101 H04L 11/08 H04Q 3/545

Claims (5)

[Claims] A step of sending line fault information to a central processing circuit when a line fault is detected in a line trunk having a line monitoring function connected to a dedicated line; and a central processing circuit receiving the line fault information. Reading a subscriber number of a relevant station from a storage circuit having a memory in which a subscriber number is registered corresponding to a backup station; and in the central processing circuit, a line having a normal line state. Acquiring the trunk at the same time as the trunk is captured, and transmitting the read subscriber number to the trunk, and installing the subscriber number at a corresponding station via the public network from the trunk. Calling an extension telephone via a private branch exchange. 2. The report is a “119” report,
The command transmission method according to claim 1, wherein the station is a fire station. 3. A command board for receiving a report and operating a command, a command controller connected to the command board, and a station connected to the command controller via a dedicated line and a public network. In the emergency command device, the command control device is connected to the dedicated line and has a line monitoring function for the dedicated line, a line trunk connected to the public network, the line trunk and the station. A command control trunk for transmitting a command tone and a command voice to a line trunk; a storage circuit having a memory of a backup subscriber number; reading a corresponding subscriber number from the storage circuit; A central processing circuit for controlling transmission of the read subscriber number; and the central processing circuit controls the line trunk, the office trunk, and the command control trunk. Emergency command device, characterized in that it comprises a switch for link connection. 4. The emergency command device according to claim 3, wherein the notification is a “119th” notification, and the station is a fire station. 5. A command terminal connected to the dedicated line and transmitting a command message to a fire department member, a private branch exchange connected to the public network, and a private branch exchange connected to the private branch exchange. The emergency command device according to claim 3, wherein an extension telephone is installed.