JPH0131826B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a remote monitoring center device using a telephone line. In particular, when information such as emergency alarms generated on a terminal is automatically transmitted to the center using a telephone line, alarm occurrences on the terminal are automatically forwarded when the center equipment is unattended. This relates to a center device.

[Description of prior art]

In recent years, a constant monitoring system has been constructed that automatically reports abnormalities in the electrical equipment of customers such as factories to the center via telephone lines. Demand is increasing. However, with such conventional remote monitoring methods, the problem is how to automatically transmit information such as alarm occurrences to the center with high reliability, and how to coordinate with the maintenance system after an alarm occurs or take measures such as at night. had not been considered in depth.

[Purpose of the invention]

The present invention solves the above-mentioned problems, and when information such as an emergency alarm generated at a terminal is automatically transmitted to a center using a telephone line, the center that receives the alarm occurrence of the terminal To provide an unmanned center device configured to automatically notify the maintenance person's home, etc. when the maintenance person is absent at the location of the device, and not to transmit the alarm occurrence of a terminal to any place other than the maintenance person's home. The purpose is to

[Features of the invention]

In addition to an automatic reception processing function for alarm information automatically transmitted from a terminal, the present invention is equipped with an automatic notification function to the maintenance worker's home and a PB receiver for receiving a confirmation after the automatic notification, so that the maintenance worker can respond. The feature is that the next maintenance person is called when the maintenance person does not receive the confirmation signal or when the confirmation signal is not received.

[Explanation of Examples]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing an embodiment of a remote monitoring device according to the present invention. In the figure, a center device 1 is connected to an exchange 2 via telephone lines 11 and 12. Exchange 2 is telephone line 1
3 to a terminal device 3, and an alarm sensor group 4 is connected to the terminal device 3 via an interface line 16. The output of the exchange 2 is connected via telephone lines 14 and 15 to maintenance personnel home telephones 9 and 7, which are to be used for calls during the night and the like, respectively.
The telephone 5 is connected to the terminal device 3 by a telephone line 15.

When the sensor 4 detects an abnormality, the terminal device 3 confirms that the telephone 5 is not in use, automatically calls the center device 1 via the exchange 2, and transmits the details of the abnormality. The center device 1 performs necessary processing on printer output, etc., and notifies maintenance personnel by generating an acoustic alarm. If a maintenance person confirms the occurrence of this acoustic alarm while performing maintenance at the center device, he or she can press the confirmation button and take necessary measures such as contacting or dispatching the device.

For example, the maintenance person is not at the center equipment location, etc.
When the occurrence of an alarm is not confirmed, a predetermined maintenance person's house 6 is automatically called in accordance with a predetermined procedure after a predetermined time has elapsed after the alarm occurrence. When receiving an acceptance confirmation signal in the form of a PB signal from the responding maintenance person's house 6, the maintenance person's house 6 is notified of the alarm occurrence of the terminal. After receiving the completion confirmation signal via PB signal (push button dial signal) again, the process is completed and the system waits for the next alarm to occur.

Furthermore, if this maintenance person's house 6 does not respond for a certain period of time, the next maintenance person's house 7 is automatically called.
Further, even if the maintenance person's house 6 responds, if the reception confirmation signal by the PB signal cannot be received, the terminal stops notifying the alarm occurrence and moves to the next maintenance person's house 7.
In addition, even if the maintenance person's house 6 receives an acceptance confirmation signal after responding and notifies the alarm occurrence of the terminal, if the completion confirmation signal by the PB signal is not obtained, the maintenance person's house 6 is called again or the next maintenance is performed in the same way. Move to residence 7.

The fact that the maintenance person is absent means that there is no confirmation operation after the occurrence of the acoustic alarm, and the maintenance person himself/herself can be configured to set the maintenance person to be absent in advance.

Next, FIG. 2 is a detailed diagram of the block configuration of the center device 1 according to the embodiment of the present invention. In the figure, control circuit 10
The input side of 1 is coupled to the output side of data processing circuit 104 . The input side of the modulation/demodulation circuit 103 for transmitting and receiving alarm information etc. is connected to the control circuit 101 with a data line 114, and the output side thereof is connected to the automatic call receiving circuit 1.
02 to the control circuit 101 via a data line 113 and output to the telephone line 11 for automatic call reception. The synthesized sound generation circuit 106 and the confirmation signal receiving PB receiver 107 each have their input sides coupled to the output side of the control circuit 101, and their output sides are both coupled to the input side of the automatic transmission circuit 105.
The automatic transmission circuit 105 is coupled to the control circuit 101 via a data line 115. The output of this automatic calling circuit 105 is the telephone line 12 for automatic calling.
join to. The above PB receiver 107 is located at the maintenance person's house 6.
After connecting to 7 or 7, an acceptance confirmation signal or termination confirmation signal sent by operating the PB button of the PB telephone at the maintenance person's house is received, and the sequence proceeds. In addition, if this confirmation signal is not obtained for a certain period of time, it is possible to determine whether the person is absent, someone other than the person in charge, or not at the maintenance person's home, and then automatically sends a notification to the next maintenance person's home.

〔Effect of the invention〕

As described above, according to the present invention, in a remote monitoring system in which information such as alarm occurrence is automatically transmitted to a center with high reliability using a telephone line, alarm occurrence information is automatically notified to a maintenance worker's house at night, etc. In case,
At the same time, it prevents notifications from being sent to the wrong subscriber's home or to a person who is not the maintainer.
This has the effect of realizing a highly reliable monitoring system that sequentially transfers alarm information to other maintenance personnel's homes when they are absent or unconfirmed.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of a remote monitoring device according to the present invention. FIG. 2 is a detailed block diagram showing a part of the apparatus according to the present invention. 1... Center device, 2... Exchange, 3... Terminal device,
4... Alarm sensor group, 5... Subscriber telephone, 6, 7
...Maintenance home phone, 11-15...Telephone line, 16...
Interface line, 101...Control circuit, 102...
Automatic call receiving circuit, 103...Modulation/demodulation circuit, 104...Data processing circuit, 105...Automatic calling circuit, 106...
Synthetic sound generation circuit, 107...PB receiver, 113,
115, 118...control line, 114, 116, 11
7...Data line, 119, 120...Signal path.

Claims (1)

[Scope of Claims] 1. A terminal for accommodating a telephone line, automatic call receiving means for automatically answering a call arriving on this telephone line, and identification for identifying an alarm signal arriving at the line answered by this automatic call receiving means. means for generating an audible alarm to a maintenance person when the alarm signal is identified by the identification means; means for identifying that the maintenance person is absent; and means for identifying the absence of the maintenance person by the means; In a remote monitoring device equipped with an automatic call connection means that automatically captures a telephone line and sends a preset subscriber number to the telephone line, the subscriber called by the automatic call connection means answers. means for transmitting a signal at an audio frequency corresponding to the alarm signal to the telephone line; means for identifying a push-button dialing signal arriving at the telephone line after transmitting the signal at the audio frequency; When the subscriber called by the calling connection means does not answer, or even if he answers, the push-button dial signal for confirmation of acceptance does not arrive, or when the push-button dial signal does not arrive after sending the signal at the above audio frequency. and means for calling a next subscriber set in advance.