JPS63171057A - Line terminal equipment - Google Patents

Abstract

PURPOSE:To remove wrong condition such as not catching lines in a line terminal equipment by rapidly informing a user that abnormal condition occurs and sending a message of requesting the disconnection of the lines in the case of using the lines in other line terminal equipment. CONSTITUTION:In the case of using the line in other line terminal equipment 21, a message transmission circuit 16 (first and second) transmits a first message, namely the message 'Please disconnect telephone because the abnormal state occurs' to the lines. After that, when an off-hook detection circuit 15 detects that the line 11 becomes in an idle state, a line closing circuit 12 close the line 11. Then the dial signal is transmitted and when an opposite side answers a second message, that is the message 'This is XX, who lives at number XX, XX-machi (street). A fire breaks out. Please send fire engines'. is transmitted. And a control circuit 20 controls the actions of respective parts.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a line terminal device used by being connected to a telephone line.

Conventional technology In recent years, as part of a home security system, line terminal devices with automatic dialing means have been connected with detection means for detecting abnormalities inside and outside the house, such as fire alarms.
A device has been developed which has a function of operating the automatic dialing means based on the detection output from the detection means, making a call to the other party (in this case, the fire department), and notifying the other party of the occurrence of the situation by message.

This will be explained in detail below.

FIG. 3 is a block diagram showing the configuration of a conventional example of the line terminal device as described above. In this figure, 2 is a line closing means for closing and opening the line 1, and 3 is a destination telephone. Storage means for storing numbers; 4 is a dialing means for sending a dial signal to the line based on the telephone number information stored in the storage means; 5 is another line terminal device connected to the same line ( For example, telephone) Line 1 by 101
6 is a message transmitting means for storing a message and transmitting the message to the line; 7 is an off-hook detecting means for detecting a closed state of the line; 7 is a message transmitting means for storing a message and transmitting the message to the line; A detection information input unit inputs detection information from a detection means 8 such as an alarm, and 9 is a ringback tone detection unit that detects a ringback tone (signal returned from the line when making a call) arriving at the line 1. Means 1o is a control means for controlling the operation of each of the above-mentioned parts, and is constituted by a microcomputer. This control means 10 performs the following operation control.

That is, when a detection signal (for example, a fire detection signal if the detection means is a fire alarm) is input from the detection means 8, the line 1 is first connected to another line terminal by the output from the off-hook detection means 5. The device determines whether the line is closed, and if the line is idle, the line closing means 2 seizes the line, activates the dialing means 4, and dials the specified destination (in this case, A dial signal from the fire department) is sent to the line, and it is detected by the output from the ringback tone detection means 9 that the other party has responded (it is detected that the other party has responded by detecting that the arrival of the ringback tone has stopped). ) and message sending means 6
Each part is configured to send a message informing you of an abnormal situation (for example, a message such as ``This is XX in XX town, address XX, but a fire has broken out. Please dispatch a fire engine.'') control.

Problems to be Solved by the Invention By the way, it is desirable to connect the above-mentioned device for notifying abnormal situations to a dedicated telephone line, but this is not possible due to the various expenses associated with installing a dedicated line. It often shares the same line with other telephone devices. In this case, the conventional line terminal device described above is configured so that if the line is being used by a telephone, etc. other than this line terminal device when an abnormal situation occurs, the system automatically dials after waiting for the line to become empty. As a result, the reporting time was sometimes delayed.This was a fatal flaw.

Means for Solving the Problems Therefore, the line terminal device of the present invention sends a message to the user indicating that an abnormal situation has occurred in the line when the line is being used by another line terminal device. Means for sending a message requesting release is provided.

Effect: By means of the above means, in the event of an abnormal situation, the user is promptly notified of the occurrence of the abnormal situation and a request to release the line is sent.

Embodiment An embodiment of the line terminal device of the present invention will be described below with reference to the block diagram shown in FIG.

In the figure, 12 is a line closing means for closing and opening the line 11, 13 is a storage means for storing the telephone number of the other party, and 14 is based on the telephone number information stored in the storage means. 15 is a dialing means for sending a dial signal to the line; 15 is an off-hook detection means for detecting a closed state of the line 11 by another line terminal device (for example, a telephone) 21 connected to the same line; 16 is an off-hook detection means for at least two types of Messages (for example, the first message is ``An unusual situation has occurred. Please hang up the phone.'' The second message is ``This is XX, address XX, town XX, and there has been a fire.'' Message transmission means for storing a message "Please dispatch a fire engine." and transmitting the message to a line.
Reference numeral 7 indicates a detection information input unit for inputting detection information from a detection means 18 such as a fire alarm connected to this device, and 19 indicates a ringback tone arriving at the line 11 (return from the line when making a call). A ringback tone detection means 20 detects a ringback tone signal (signal that is transmitted), and 20 is a control means for controlling the operation of each of the above-mentioned parts, and is constituted by a microcomputer.

The control operation by this control means 20 will be explained using the flowchart shown in FIG.

First, when a detection signal (for example, a fire detection signal if the detection means is a fire alarm) is input from the detection means 18 (step A), the line 11 is connected to another Step B): Determine whether the line terminal device is in a closed state.
If it is determined that the line is free, the process moves to step C, where the line is captured by the line closing means 22, the dialing means 14 is activated, and a predetermined destination (in this case, the fire department) is selected.
A dial signal is sent to the line (step D), and the response of the other party is detected by the output from the ringback tone detection means 19 (the other party responds by detecting that the arrival of the ringback tone has stopped). In step E), the message sending means 16 sends a second message, ``This is XX town XX address XX.
However, a fire has broken out, so please dispatch a fire engine. ” (Step F)
, Also, in step B, the line is connected to another line terminal device 2.
If it is in use in step 1, move to step G,
First, the message sending means 16 sends a first message to the line that is in use, that is, the message "An abnormal situation has occurred. Please hang up." Then, the off-hook detecting means 15 determines that the line 11 is idle. When it is detected (step H), the process moves to step C, where the line 11 is closed by the line closing means 12, and then the process goes to step F via steps D and E in the same way as in the case described above. Processing progresses and a second message is sent to the other party.
In other words, the message ``This is XX in XX town, address XX, but a fire has broken out, so please dispatch a fire engine.''

The control means 20 controls the operation of each part so that the above operations are performed.

In this embodiment, the fire alarm is connected to the line terminal device 22 (the part surrounded by the broken line in FIG. 1). Various methods are conceivable, such as one that detects when a problem occurs and notifies the main line terminal device. Further, in this embodiment, the detection means 18 has been described as being provided separately from the present device, but it goes without saying that the present line terminal device may also include this detection means.

Effects of the Invention As explained above, according to the line terminal device of the present invention,
Even if the line is being used by a terminal other than this line terminal, this line terminal will send a message to that user requesting that the line be released. This reduces the risk of problems such as not being able to catch objects, and is very effective in practice.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a line terminal device according to an embodiment of the present invention, FIG. 2 is a flowchart showing the operation flow of the same embodiment, and FIG. 3 is a block diagram showing the configuration of a conventional line terminal device. It is a diagram. 11... Line, 12... Line closing means, 13... Memory means, 14... Dial means, 15... Off-hook detection means, 16.
...Message sending means, 17...Detection information input section, 18...Detection means, 19...
... Ringback tone detection means, 20 ... Control means, 21 ... Name of other line terminal device agent Patent attorney Toshio Nakao and one other person Figure 1 tc---me, , t-r; hair (drunkenness 4 fig. 2)

Claims (1)

[Claims] off-hook detection means for detecting a closed state of the line by another line terminal device; line closing means for closing and opening the line; message sending means for sending at least two messages to the line; a storage means for storing telephone number information; a dialing means for sending a dialing signal to the line based on the destination telephone number information stored in the storage means; a dialing means for inputting off-hook detection information from the off-hook detection means; If it is determined that the line terminal device is in an off-hook state, the message sending means is operated to send the first message to the line, and then the off-hook detection means detects on-hook of another line terminal device. In this case, the line closing means is first activated to close the line, the dialing means is activated to send a dial signal to the line, and then the message sending means is activated to send a second message to the line. What is claimed is: 1. A line terminal device characterized by comprising a control means for controlling an operation so as to send data to