JPH05344233A - Abnormality notifying device - Google Patents

Abstract

PURPOSE:To make it possible to perform a calling by a monitoring station without disconnecting a pertinent telephone line even when the line connected with an abnormality notifying device automatically notifying abnormal information to the monitoring station by utilizing the telephone line is busy, regarding this abnormality notifying device. CONSTITUTION:This abnormality notifying device is provided with a busy detection means 4 detecting the busy state of a pertinent telephone line, a discrimination means 3 detecting the calling request for abnormal information and selecting a notifying form according to the call state of the pertinent telephone line, an inter-multiparty communication means 5 forming an inter-multiparty communication line in response to the discrimination signal for the notification form from the discrimination means 3 and an automatic calling means 6 transmitting a calling signal to a monitoring station via the inter-multiparty communication line. Further, the device is provided with a response detection means 7 detecting the response signal from the monitoring station for the calling signal. After the response signal is detected, abnormal information is notified via the pertinent line and the pertinent line is recovered to its original state after the notification is terminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an abnormality notifying apparatus for automatically notifying a monitoring station, that is, a security headquarters when the abnormality information or the security mode information is generated by using a multi-party call.

[0002]

2. Description of the Related Art In a conventional abnormality reporting device, as shown in Japanese Patent Publication No. 63-37549, for example, when an abnormality occurs, for example, when a fire occurs, a gas leak or another abnormal state occurs, an abnormality is reported. It has been proposed or implemented to forcibly disconnect the telephone line of a subscriber's telephone to which the device is attached so as to forcibly disconnect the telephone line and promptly notify the security headquarters of abnormal information.

[0003]

However, in such a conventional method, since the call line is temporarily disconnected when reporting the abnormal information, if the requirement for the telephone call with the other party is not terminated, the abnormal condition is detected. After the signal was transmitted to the security headquarters, there was a problem that it was troublesome to call the other party again. In addition, there is a problem that it is necessary to provide a dedicated telephone line in order to avoid such trouble.

The present invention has been proposed in order to solve the above-mentioned problems, and an object thereof is to utilize a multi-party call to detect abnormal information without disconnecting the telephone line of the other party. Alternatively, it is to provide an abnormality reporting device that automatically reports security mode information to the security headquarters.

[0005]

According to one aspect of the present invention, there is provided an abnormality notifying apparatus for notifying a monitoring station of call request information such as abnormality information and security mode information using a telephone line. Busy detecting means for detecting the busy state of the device, identifying means for detecting the call request information and selecting the report circuit form according to the line communication state, and a multi-person responding to the activation signal from the identifying means. An inter-communication line forming an inter-communication line, and an automatic calling unit for transmitting a calling signal to the monitoring station through the multi-party communication line, when the call request information is detected by the identifying unit. An abnormality reporting device is provided which reports the detected call request information to a monitoring station through a multi-party communication line.

[0006]

According to the above means, when the abnormality information is notified to the monitoring station, the busy state detecting means detects the busy state of the telephone line. Then, the identifying means selects a calling circuit form for sending the abnormality information and the like according to the call state. When the line is busy, an activation signal is given to the multi-party call means, and the currently busy line is temporarily put on hold. At that time, the notification line is formed by the automatic calling means. Then, after the notification is completed, the conventional line that has been put on hold is restored by the multi-party call means.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. Referring to FIG. 1, an abnormality notification device according to the present invention includes a detection means 1 which is a call request information detection means for detecting a setting state of a security mode and an abnormality such as a fire or an intrusion. Determination start means 2 for determining whether or not the telephone line is necessary and transmitting a start signal, identification means 3 for transmitting a start signal by identifying whether the telephone line is empty or talking.
Busy detection means 4 which operates when the line is busy, multi-party call means 5 forcibly forming a multi-party call line based on the activation signal from the identification means 3, dial pulse signal to the security headquarters Is sent to automatically call the security headquarters, response detecting means 7 for detecting a response signal returned when the security headquarters is called and the security headquarters responds, detection signal of the response detecting means 7 In response to the type of abnormality that has occurred or the security mode set by the switching operation device 11 is coded to the security headquarters and sent out.

The sensing means 1 is, for example, a switching operation device 11 for switching between security start and security release by inserting and removing a predetermined card possessed by a subscriber, and a security state by reading this information. Security status setting circuit 1
2 and various abnormality detection sensors 13a, 13b ... 13n that perform intrusion detection using ultrasonic waves, infrared rays or reed switches, micro switches, etc., and fire detection, and a predetermined level abnormality in the signal of the abnormality detection sensor 14n for detecting a signal and transmitting a signal.

The operation of the abnormality notifying apparatus of this embodiment will be described together with the detailed circuit configuration of each section (means). When a predetermined card possessed by the subscriber is inserted into or removed from the switching operation device 11 in the sensing means 1, such a signal is sent from the security state setting circuit 12 to the automatic calling means 6 via the predetermined judging part 21 and the activation switch 22. Sent. The signal concerned is notified to the security headquarters (not shown) via the telephone line, and the security headquarters knows from the signal sent that the place where the abnormality notification device is attached has reached the security start time. Similarly, in the case of releasing the security, the security headquarters knows from the signal transmitted in accordance with the insertion or withdrawal of the card that the installation location is being released. However, in the case of an abnormality report due to a fire and an emergency report, the determination unit 21 of the determination activation means 2 operates even when the security is being released, and the abnormality can be notified to the security headquarters.

Further, the determination unit 21 is configured so that the activation signal due to the intrusion detection is not output to the activation switch 22 while the security is released.

First, the operation when an abnormal situation occurs while the telephone line is empty will be described. For example, the abnormality detectors 13a, 13b ...
When any of the 13n senses an abnormality, the determination starting means 2
Is sent to the determination section 21, and the determination unit 21 determines whether the current mode is the security time or the security release.

During the guard time, a high level signal from the activation switch 22 causes the AND gates G1 and G of the identification means 3.
Sent to one input of each of the two. On the other hand, telephone line L
Since 1 and L2 are in an empty state, the relay OH of the busy detecting means 4 is not operating, and therefore the output of the busy detecting means 4 becomes high level. Therefore, both of the two inputs of the AND gate G2 become high level and the output thereof also becomes high level, but since the inverter 31 is inserted between the AND gate G1 and the output of the busy detecting means 4, The output becomes low level and is not output.

The high level output of the AND gate G2 activates the dial pulse generating circuit 6 which is an automatic calling means, activates the circuit closing relay A, the dial pulse relay DI and the shunt relay DS, and the contact a of the relay A.
1, a2, the contact di of the relay DI and the contact ds of the relay DS are turned on, so that the DC closed loop L1-
a1-di-ds-a2-L2 is formed.

Thereafter, a predetermined dial pulse signal (for example, a telephone number of the security headquarters) stored in advance in the dial pulse generating circuit 6 actuates the contact di of the dial pulse relay DI, whereby the DC closed loop is generated. Is dialed through the security headquarters. This dial pulse signal calls the security headquarters. When the security headquarters responds, a response signal is returned to the abnormality notification device. When this response signal is detected by the response detection means 7, the information signal selection switch circuit 81 of the response means 8 operates,
Various coded abnormality information based on a combination of signals corresponding to the type of abnormality of the abnormality detector stored in advance in the signal generation circuit 82 is transmitted. At this time, at the same time, the information transmission switching relay C is operated, the contact c is switched, and the abnormality information is transmitted to the security headquarters through the telephone lines L1 and L2.

As a result, the security headquarters can know the type of abnormality that has occurred. After transmitting the abnormal information, the information transmission switching relay C is restored, and at the same time, the DC closed loop is opened.

Next, the operation when the telephone lines L1 and L2 are busy will be described. As described above, when the abnormality detector of the sensing means 1 senses an abnormality, the determination activation means 2 sends a high level activation signal to the identification means 3. Busy detection means 4
The relay OH of No. 1 is operating because the telephone line is busy, and the contact oh thereof is on, so that the output of the busy detecting means 4 becomes low level. Since the inverter 31 is inserted between one input of the AND gate G1 and the output of the busy detection means 4, both of the two inputs of the AND gate G1 are at high level and their outputs are also at high level. .. On the other hand, the two inputs of the AND gate G2 are low level and high level, respectively, and the output is low level and is not output.

The high level output of the AND gate G1 activates the multi-party call circuit 5 which is a multi-party call means. That is, the multi-party communication circuit 5 operates the dial pulse generation circuit 6 to switch the contacts a1 and a2 to the abnormality notification device side. At this time, the dial pulse relay DI and the shunt relay DS are set to be turned on, and the DC loop L1-contact a1-contact di-contact ds-contact a.
2-L2 is formed.

Next, the dial pulse generating means 6 operates the dial pulse relay DI to turn off the contact di once and immediately turn it on again. As a result, the call destination can be called through the telephone lines L1 and L2 without disconnecting the line during the call.

After that, the dial pulse signal is sent to the guard headquarters by activating the contact point di of the dial pulse relay DI.

The guard headquarters is called by this dial pulse signal, and when the guard headquarters responds, a response signal is returned to the abnormality reporting device. This response signal is the response detection circuit 7
Detected in. Then, the information signal selection switch circuit 81 of the response means 8 is activated, and various coded abnormality information by a combination of signals corresponding to the abnormality type of the abnormality detector stored in advance in the signal generation circuit 82. Is sent. At this time, the information transmission switching relay C is operated at the same time,
The contact c is switched, and the abnormality information is sent to the security headquarters through the telephone lines L1 and L2. This allows the security headquarters to know the type of abnormality that has occurred. After sending abnormal information,
The information transmission switching relay C is restored.

Next, the dial pulse relay DI has a contact point d.
i is operated and the contact di is turned off and on twice.
As a result, the DC closed loop with the security headquarters is opened. However, since the telephone line with the person who is busy is closed as it is, the call can be continued thereafter.

In the embodiment of the present invention, a message such as "please wait" may be sent to both callers before operating the call between the other parties.

Further, although the dial system is explained in the embodiment, it is needless to say that it is applicable to the touch-tone system. Furthermore, although the call request information is described as the security mode information and the abnormality information, it may be only the security mode information or the abnormality information.

Although the response means 8 is activated by a response signal from the security headquarters, the response means 8 may be activated by detecting the polarity reversal of the line due to the off-hook of the security headquarters.

[0026]

According to the present invention, even if the telephone line is busy, it is possible to notify the security headquarters of the occurrence of an abnormality without disconnecting the telephone line, so the security level is improved,
It is also effective in disaster prevention because there is no danger of intentionally talking on the line and causing damage during that time. Further, when it is necessary to continue the call, it is effective to save the trouble of making a call again to the other party. Further, there is an advantage that it is not necessary to provide a dedicated telephone line for such a report.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an abnormality notification device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Sensing means 2 ... Judgment starting means 3 ... Identification means 4 ... Busy detection means 5 ... Multiparty call means 6 ... Automatic calling means 7 ... Response detection means 8 ... Response means 11 ... Switching operation device 12 ... Alarm state setting Circuit 13 ... Various abnormality detection sensor 14 ... Detection circuit 21 ... Judgment part 22 ... Startup switch 41 ... Busy detection relay 81 ... Information signal selection switch circuit 82 ... Information signal generation circuit

Claims (1)

[Claims] 1. An abnormality notifying device for notifying a monitoring station of call request information such as abnormality information and security mode information using a telephone line, the busy state detecting means detecting a busy state of the telephone line. (4)
An identifying means (3) for detecting the call request information and selecting a reporting circuit form according to a line communication state; and a multi-person forming a multi-person communication line in response to an activation signal from the identifying means. An inter-talking means (5); and an automatic calling means (6) for sending a calling signal to a monitoring station through the multi-party calling line, wherein the multi-party caller when the calling request information is detected by the identifying means. An abnormality notifying device for notifying the monitoring station of the detected call request information through an intercommunication line.