JP3505499B2 - Reporting system and terminal adapter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a notification system and a terminal adapter, and more particularly, to a notification system and a terminal adapter that can apply an analog line compatible notification device to a digital line network such as an ISDN line.

[0002]

2. Description of the Related Art As a reporting device, a fire alarm signal at the time of a fire is sent to a predetermined report destination (for example, a fire department or a security company) to promote quick digestion activity, or theft or accident. In general, a reporting device that automatically reports to a police or a security company when a crime occurs is put into practical use.

In such a reporting device, an abnormal signal is sent to the reporting destination when the above-mentioned abnormal state occurs. That is, a line as an analog line is captured by a start signal from a monitoring device installed in the abnormality monitoring area, and a preset telephone number (special number: 110
No. or 119) dial transmission. Upon receiving the notification, the report destination returns a response signal in response to the dial transmission, and after confirming the response, the report side sends a message signal indicating a pre-stored abnormal state or emergency occurrence to the report destination. To do. After that, the capture line is opened to wait for a counter-communication from the callee.

In this state, the analog line being connected at the call destination is held, and the call side (emergency call device) is immediately connected to both devices only by re-acquiring the line. Therefore, when the reporting side detects a back contact from the reporting side, the line is captured by the response to the incoming call due to the ringing of the telephone, and the communication with the reporting side is enabled.

If an incoming call due to a backhaul from the callee cannot be detected within a predetermined backhaul waiting time (for example, 5 seconds), the open line is recaptured, and a second dial operation is required. Instead, the message signal can be sent to the reporting destination without fail, and the reliable reporting to the reporting destination is possible.

[0006]

The notification system as described above is widely adopted in analog lines. On the other hand, in recent years, in addition to high-speed data communication, digital lines (I
The SDN line) is widely used, and a terminal adapter (TA) is used as the terminal device. If the above-mentioned reporting system can be applied to this kind of digital line as it is, the existing reporting system can be used as it is and various advantages of the digital line can be utilized, which is very useful.

However, if the above notification system is applied to this kind of digital line, the following problems occur.
That is, in the case of the analog line, when the reverse signal from the callee arrives and cannot be detected, the conventional system opens the line again, waits for the arrival of the reverse signal for about 5 seconds, and cannot detect it. In this case, the line is captured again and a notification message is sent. As described above, since the conventional system is configured to reestablish the communication path by reacquiring the line, it is possible to shift to the notification message sending process to the notification destination without sending the dial again.

On the other hand, in a digital line such as ISDN using a terminal adapter, when the line is reacquired and a message is sent, the terminal adapter is connected to the analog port. Dial tone (D
T) is sent to wait for a dial signal from the reporting device, and the I signal is not received until the dial signal from the reporting device is received.
Connection processing is being performed on the SDN line.

On the other hand, in the above-mentioned conventional notification system, after sending the notification message, the line is once opened to wait for the counter-reception from the notification destination. IS to open the line to wait for reverse communication
Since the link on the DN line side is also released, it becomes impossible to retransmit the notification message when there is no back communication. In other words, there is a problem that the call path formation only by reacquisition that can be performed on the analog line cannot be performed on the ISDN line.

Thus, the terminal adapter is an IS
When an incoming call from the DN line is detected, a call signal is sent to a terminal such as a telephone connected to the analog port,
The ISDN line link is formed by the response from the off-hook of the telephone. As a result, the call path cannot be formed only by recapturing on the ISDN line, and the notification message cannot be retransmitted when there is no counter-reception from the reporting device, which makes it inconvenient to use the ISDN line. become.

Therefore, an object of the present invention is to provide a notification system and a terminal adapter which allow the notification device used in an analog line to be applied as it is to a digital line such as an ISDN line.

Another object of the present invention is to provide a notification system and a terminal adapter that can always send a full-text message without missing the leading part of the notification message.

[0013]

The notification system and the terminal adapter according to the present invention have the following characteristic configurations.

(1) The notification from the terminal which is the source of the notification
To the digital network via the terminal adapter
It is sent to the destination and the response from the destination is detected to detect the end.
Send a notification message from the end and send this notification message
The terminal is detected by detecting the received counter signal from the report destination.
Reporting system that secures the call status between the callee and the callee
In, the terminal adapter is
It is determined whether the dial information is a special number that is set in advance,
If it is judged as a number other than the special number, normal processing is executed and the special number
When it is determined that the call is made to the digital circuit network
And the response O of the report destination that responded to this calling process.
FFHOOK information is transferred to the end via the digital network.
When it is received at the end of the
Send a report message to the report destination,
The terminal receiving the reverse signal via the digital network
At the end, the terminal and the notification via the digital line network
The call status with the destination is established, and the terminal receives the notification message.
The counter signal is received within a specified time after the end of sending the message.
If you don't receive the message,
Performs call processing by automatically sending the dial number of the recipient
A notification system that retransmits the notification message .

(2) The digital circuit network is ISDN times
The reporting system of (1) above, which is a line network.

(3) Notification signal from the terminal that is the notification source
Received and sent to the destination via the digital line network.
A message is sent from the terminal based on the response from the callee.
Message is sent to the above-mentioned destination and this notification message is received.
When the counter signal from the callee is detected, the terminal and the
A terminal adapter that secures the call status with the callee
, The dialing information from the terminal is
If it is judged that it is a number other than the special number,
If normal processing is executed and it is judged as a special number,
The call processing is executed for the automatic line network and the call processing is performed.
The response OFFHOOK information of the respondent who answered
The terminal when received by the terminal via the tar line network
A notification message stored in advance on the side
It sends out the counter signal from the callee to the digital line.
The terminal, which has received through the network, connects to the digital network.
Establishes a call state between the terminal and the report destination via
However, after the terminal has finished sending the notification message,
If the counter signal is not received within the time,
Automatically dials the dialed number of the report destination set in the memory.
Message to perform the calling process and the notification message
A terminal adapter characterized by retransmitting.

(4) The digital network is ISDN times
The terminal adapter of (3) above, which is a wire network.

[0018]

[0019]

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The configuration and operation of a preferred embodiment of a notification system and a terminal adapter according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a diagram showing an example of a notification system and a terminal adapter according to the present invention, showing a special number notification sequence when a report destination is an emergency police station or a fire station.

In the embodiment shown in FIG. 1, a message from a terminal 1 such as an emergency telephone device which is a report source is sent to a digital network such as ISDN via a terminal adapter (TA) and sent to a report destination. A sequence is performed in which a notification message is transmitted from the notification device by detecting a response from the notification destination, and a back contact from the notification destination is detected to make a call between the terminal 1 and the notification destination.

Now, when an emergency occurs at the caller, the terminal 1
There Then, off-hook (OFFHOOK), dial tone from the terminal adapter (TA) (DT) is the terminal 1
Returned to. After that, when the dial information is sent from the terminal 1 to the terminal adapter, it is determined whether the dial information is a special number (for example, 119 or 110), and if it is a number other than the special number, normal processing is executed. However, in the case of a special number (for example, 119 or 110), call processing is performed to the ISDN network, and a ring signal is transmitted to the notification destination connected to this ISDN network, and a ring signal is being transmitted. A ringback tone (RBT) signal is sent to the reporting terminal 1 via the terminal adapter.

The report destination is turned off in response to the ring signal.
When HOOK is performed, this OFFHOOK is returned to the ISDN network, and the terminal adapter executes the response process.
After the execution of this process, a notification message is sent from the terminal 1 to the notification destination.

At the end of the call when the sending of the notification message is completed, ONHOOK is detected by the terminal adapter, the end call process is executed for the ISDN network, and the callee is put in a silent state.

Next, the reverse operation signal from the callee is IS
The data is sent to the terminal adapter via the DN network, and the terminal 1
To call the terminal 1 and send a ring signal to the terminal 1.

When the terminal 1 receiving this ring signal responds (OFFHOOK), the signal is sent to the terminal adapter, the response processing is executed for the ISDN line network, and the call between the terminal 1 and the callee is made. The state is established.

After that, when a call is made between the caller and the callee, the terminal 1 terminates the call, and an ONHOOK operation is performed, the terminal adapter executes the call termination process to the ISDN line network and outputs a silent signal. Send to the report destination. In response to this silent signal, the callee ends the call and turns ONHOOK,
Call termination processing is executed by the terminal adapter via the ISDN line network.

By the way, in the present embodiment, the terminal 1
After sending the notification message from the side, if the counter-reception from the notification destination does not arrive within a predetermined time T (5 seconds in this example) predetermined from ONHOOK, and it cannot be detected,
The dial number (special number) of the callee set in the memory on the TA side is automatically sent to perform call processing, and a ring signal is sent to the callee to respond to OFFHOOK from the callee. Resend the notification message.

As described above, in this embodiment, even if the terminal 1 is in any state such as line capture or open state, the call destination stored in the memory is automatically called, and the message Since it is possible to resend, even if the callee cannot receive the reverse communication for some reason, it is possible to make a report as in the conventional case without any problem.

According to the present invention having the above-mentioned configuration, the full-text message can always be sent without any missing at the beginning of the notification message.

That is, in general, the faster the notification message is sent to notify the occurrence of the abnormal state, the better. Therefore, the terminal sends the notification message simultaneously with the line acquisition. On the other hand, the terminal adapter having the interface function with the digital line network has a time TA of at least several hundred ms for confirming that the terminal has surely captured the line at the time of detection by the line capture circuit. We are monitoring the condition. This monitoring is also for avoiding malfunction due to noise. Then, the terminal adapter, after detecting the line seizure, executes the connection process for the line, but the time TB required and set for that purpose is set.
Depends on the line status, but is 2 seconds on average.

Therefore, the head portion corresponding to the time (TA + TB) in the notification message sent from the terminal at the same time as the line acquisition is not sent to the notification destination. As a result, important messages may not reach the callee, and it may become impossible to respond promptly to an emergency or abnormal situation.

On the other hand, according to the present invention, the line open timer is operated and the predetermined time T is irrelevant regardless of whether the terminal as the reporting device connected to the analog port of the terminal adapter has the line capture (OFFHOOK). After the lapse of time, since the connection processing is being executed from the terminal adapter to the line, the terminal will capture the line and send the notification message while the line is connected. There will be no omissions, and the entire text of the notification message will always be reliably reported to the recipient.

The configuration and operation of the preferred embodiment of the notification system and terminal adapter according to the present invention have been described above in detail. However, it should be noted that such an embodiment is merely an example of the present invention and does not limit the present invention in any way. Those skilled in the art can easily understand that various modifications and changes can be made according to a specific application without departing from the gist of the present invention.

[0036]

As can be understood from the above description, according to the notification system and the terminal adapter of the present invention, the notification device used in the analog line can be used as it is in the ISDN.
Not only can it be applied to a digital line such as a line, but there is a special effect that a full-text message can always be sent without missing the leading part of the message to be reported to the report destination.

[Brief description of drawings]

FIG. 1 is a diagram showing a special number notification sequence in the case where a report destination is a police station, a fire station, or the like that requires an emergency, showing an embodiment of a notification system and a terminal adapter according to the present invention.

[Explanation of symbols]

1 terminal

Claims (4)

(57) [Claims] 1. A terminal for reporting from a terminal which is a reporting source.
Send to digital network via adapter and send to report destination
Call out from the terminal by detecting the response from the report destination.
Message was sent and this message was received
Detecting a counter signal from the callee, communicating with the terminal
In the notification system that secures the call status with the recipient
The terminal adapter
It is determined whether or not the information is a special number that is set in advance, and
If it is judged as a number, normal processing is executed and it is judged as a special number
When the call processing is executed for the digital line network,
Response OFFHOO of the report destination in response to this calling process
K information is received at the terminal via the digital network.
Message stored in the terminal in advance
Message to the notification destination, and the counter signal from the notification destination is sent.
The terminal received via the digital line network is
Between the terminal and the report destination via a digital line network
Establishing a call state, and a predetermined time after the terminal finished sending the notification message
If the reverse signal is not received within the
The dial number of the callee set in the memory is automatically
Sends out, performs call processing, and resends the notification message.
Reporting system, characterized in that that. 2. The digital circuit network is an ISDN circuit network.
The notification system according to claim 1, wherein: 3. Receiving a notification signal from a terminal which is a report source,
Send to the report destination via the digital line network, and
The notification message from the terminal based on the response from
The message sent to the report destination and the notification message received above was sent.
The terminal and the report destination are detected by detecting a counter signal from the report destination.
In the terminal adapter that secures the call status between
And whether the dial information from the terminal is a predetermined special number
Normal processing if it is judged whether it is a number other than a special number
Is executed, and if it is determined that it is a special number,
The call processing is executed for the call
The response OFFHOOK information of the callee is the digital network.
When it is received by the terminal via
Send the stored notification message to the notification destination,
The reverse signal from the report destination is sent through the digital line network.
The terminal that has received the
Establishing a call state between the terminal and the report destination, the terminal for a predetermined time from the end of sending the report message
If the reverse signal is not received within the
The dial number of the callee set in the memory is automatically
Send it out to perform the calling process and re-issue the notification message.
Terminal adapter characterized by sending. 4. The digital circuit network is an ISDN circuit network.
The terminal adapter according to claim 3, characterized in that
Ta.