JPS6091755A - Remote supervisory device - Google Patents

Abstract

PURPOSE:To attain a maintenance system after rasing of alarm with high reliability by information automatically an emergent alarm to the housing of a maintainer when the maintainer is absent in a center device, in an emergent alarm system via a telephone line. CONSTITUTION:When a sensor 4 detects a fault, a terminal device 3 calls automatically the center device 1 via an exchange 2 so as to transmit the content of the fault. If the maintainer is absent at the center device 1, the housing 6 of the maintainer is called automatically according to the predetermined procedure after a prescribed time is elapsed after generation of alarm. When the center device 1 receives a reception confirming signal comprising a PB signal from the housing 6 of the maintainer responded thereto, the generation of alarm of the terminal device is informed to the housing 6 of the maintainer. If the housing 6 of the maintainer does not respond for a prescribed time, the next housing 7 of the maintainer is called automatically.

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. The present invention 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 a center via telephone lines. Demand is increasing. However, with 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 is intended to solve 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 a maintenance personnel group, etc. when a maintenance person is absent at the location of the device, and not to transmit 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 the processing function, the automatic reception of alarm information automatically transmitted from the terminal is equipped with an automatic notification function and a FB receiver 47g for receiving confirmation after automatic notification to the maintenance personnel group. Characteristics [Description of 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, 12.

The exchange 2 is connected to a terminal device 3 via a telephone line 13,
An alarm sensor group 4 is connected to the terminal device 3 via an interface line 16. Connected to the output of the exchange 2 are main telephones 6 and 7 for maintenance personnel, who are to be used for calls during the night, etc., through telephone lines 14 and 15, 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 for printer output, etc., and notifies maintenance personnel by generating an acoustic alarm. When a maintenance person is in a maintenance state at the center device and confirms the occurrence of this acoustic alarm, he or she can press the confirmation button and take necessary measures such as contacting or dispatching.

If the occurrence of an alarm is not confirmed, such as when the maintenance person is not at the center equipment location, the alarm will be activated according to a predetermined procedure after a predetermined period of time has passed after the alarm occurrence.
A predetermined maintenance worker's house 6 is automatically called. When the responding maintenance group 6 receives an acceptance confirmation signal based on the PB signal, it notifies the maintenance group 6 of the occurrence of an alarm at the terminal. After receiving the completion confirmation signal again (FB double signal push button dial signal), the process is completed and the next alarm is waited for.

Further, if this maintenance group 6 does not respond for a certain period of time, the next maintenance group 7 is automatically called.

Further, even if the maintenance group 6 responds, if the reception confirmation signal by the PB double signal cannot be received, the terminal stops notifying the occurrence of an alarm and moves to the next maintenance group 7.

In addition, even if the maintenance station 6 receives the acceptance confirmation signal after the response and notifies all alarm occurrences of the terminal, if the completion confirmation signal by the FB double signal is not obtained, the maintenance station 6 will be called again, but the next call will be made in the same way. Move to maintenance group 7.

The fact that the maintenance person is absent can be determined by not only not requiring a confirmation operation after the acoustic alarm occurs, but also by setting the maintenance person to be absent in advance.

Next, FIG. 2 is a detailed block diagram of the center device 1 according to an embodiment of the present invention. In the figure, the input side of control circuit 101 is coupled to the output side of data processing circuit 104. The input side of the modulation/demodulation circuit 103 for transmitting/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 control circuit 101 via the automatic incoming call circuit 102 with a data line 113, and is automatically activated. Telephone line 11 for
Output to. The automatic transmission circuit 106 and the confirmation signal receiving PB receiver 107 each have a control circuit 10 on their input side.
1, and the output sides thereof are both coupled to the input side of the automatic oscillation circuit 105. The automatic oscillator circuit 105 is coupled to the control circuit 101 via a data line 115'. The output of this automatic oscillation circuit 105 is coupled to telephone line 12 for automatic oscillation. After the PB receiver 107 is connected to the maintenance person's house 6 or 7, the PB of the PB telephone at the maintenance person's house is
The sequence proceeds by receiving an acceptance confirmation signal or completion confirmation (IG signal) sent by button operation.Also, 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 the 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 that uses a telephone line to automatically and reliably transmit information such as alarm occurrences to a center, alarm occurrence information is automatically transmitted to a maintenance worker's home at night, etc. When sending notifications, this prevents notifications from being sent to the wrong subscriber's home or notifications that are not for the maintenance person's busy schedule, and at the same time, when the subscriber is absent or unconfirmed, alarm information is transferred to other maintenance personnel's homes one after another. This has the effect of realizing a highly reliable monitoring system.

[Brief explanation of the drawing]

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. ■...Center device, 2...Switchboard, 3...One terminal device, 4...Alarm sensor group, 5...Subscriber telephone,
6.7...Maintenance worker's main telephone, 11-15...Telephone line, 16...Interphoon line, 101...Control circuit, 102...Automatic call receiving circuit, 103...Modulation/demodulation circuit, 104 ...Data processing circuit, 105...Automatic transmission circuit, 106...Synthetic sound generation circuit, 107...FB
Receiver, 113.115.118...Control line, 114
．． 116.117...Data line, 119.120...
・Signal road.

Claims (1)

[Claims] (1) a terminal for accommodating a telephone line; an automatic answering means for automatically answering a call arriving on this telephone line; a means for identifying an alarm signal arriving on the line answered by this means; and this means. means for generating an audible alarm to a maintenance person when an alarm signal is identified in the remote monitoring device; automatic calling connection means that automatically captures telephone number #J and sends a preset subscriber number to that telephone line, and when the subscriber called by this automatic calling connection means answers, the above-mentioned alarm is activated. The telephone line is characterized by comprising means for transmitting a signal at an audio frequency corresponding to the signal to the telephone line, and means for identifying a push-button dialing signal arriving at the telephone line after transmitting the signal at the voice frequency. remote monitoring device.