JPS63312764A - Monitoring device - Google Patents

Abstract

PURPOSE:To rapidly transmit an alarm for an abnormality by transmitting the alarm to the user of a main telephone set when the use of the main telephone set at the time of transmitting the abnormal data of respective equipments detected by a monitoring means. CONSTITUTION:The monitoring means 10a constantly monitors the state of the respective equipments 2 and transmits an abnormality detecting signal at the time of detecting the abnormality. When the abnormality detecting signal is supplied, a line control means 10b uses the main telephone set, detects an incoming call, closes and opens a line and executes a dialing. Then, at the time of transmitting an information for the generation of the abnormality, when the use of the main telephone set or the incoming call is detected, a buzzer 11 is driven by an alarming means 10c for a prescribed time. When the line is used after the prescribed time, the line is forcibly switched to this device by a line forcibly switching means 10d. Then, the abnormal data to transmitted to a receiver 3 through the telephone line 4 by an informing means 10e.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a monitoring device, and in particular to a monitoring device that monitors the status of various equipment and, when an abnormality occurs, reports the monitoring results to a receiving device via a telephone line. The present invention relates to a monitoring device.

[Conventional technology]

FIG. 4 is a block diagram showing a conventional monitoring device. In the figure, reference numeral 1 denotes a monitoring device, such as an elevator or an air conditioner installed in a building or the like.

Monitoring means 1a that constantly monitors the status of various types of equipment 2 such as power receiving and transforming equipment or refrigeration equipment to detect abnormalities, and line control that uses the telephone, detects incoming calls, and closes/opens lines and dials. and an alarm means IC for transmitting abnormal data detected by the monitoring means 1a to the receiving device 3 via a telephone line.

Next, the operation will be explained. The status of various equipment is constantly monitored by the monitoring means 1a. When the monitoring means 1a detects an abnormality in the equipment 2, the line control means 1b dials the destination and closes the line. When the line is closed, the alarm means IC converts the abnormal data detected by the monitoring means 1a into a PB multiplied signal and transmits it to the converted PB multiplied signal receiving device 3 via the telephone line 4.

When closing the line to the destination, please confirm that the telephone is not in use and has not received any calls for a certain period of time (for example, 3
．． 5 seconds) Monitor. When it is confirmed that the line has not been used for this certain period of time, the line is closed for the first time at this point. Also, if the line is in use, it waits until the line becomes free.

[Problems to be Solved by the Invention] Since the conventional monitoring device is configured as described above, if an abnormality occurs while the telephone is in use or when receiving a call, it is necessary to wait until the telephone is not in use. As a result, there was a problem in that prompt notification could not be made.

This invention was made in order to solve the above-mentioned problems. When detecting and reporting an abnormality, it is possible to quickly and reliably report an abnormality even when the telephone is in use or when a call is received. The purpose is to obtain a monitoring device that can provide information.

[Means for solving problems]

The monitoring device according to the present invention activates the alarm means such as a buzzer for a certain period of time when an abnormality is detected and the line is in use due to the telephone being in use or receiving a call. If the line continues to be used even if this alarm means stops operating, the forced line switching means will forcibly switch the line to the equipment side and control the line control means to detect an abnormality. This is to issue information.

[Effect]

If the telephone is in use or receiving a call when an abnormal condition is detected, the monitoring device according to the present invention generates a warning for a certain period of time to urge the telephone line to be discontinued, and the line remains free even after that. In such a case, the line is forcibly switched to the device side to issue the alarm, so accurate alarms can always be issued quickly.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 10 is a monitoring device, and 10a is a monitoring device that constantly monitors the status of each piece of equipment 2 installed in a building or the like, such as an elevator, air conditioner, power receiving/substation equipment, or refrigeration equipment, and detects an abnormality. A monitoring means 10b for sending out a detection signal is a line control means for using the telephone, detecting an incoming call, and closing/opening the line and dialing when an abnormality detection signal is supplied from the monitoring means 10a. When the line control means tab receives an abnormality detection signal from the monitoring means 10a, that is, when attempting to report the occurrence of an abnormality, if the telephone is detected to be in use or incoming, the detection signal Alarm means 1 that is driven to drive the buzzer 11 for a predetermined period of time;
0d is a line forced switching means that forcibly switches the line to this device side when the line is still in use after the alarm means 10c has driven the buzzer 11 for a predetermined period of time, and 10e is a line forced switching means that the monitoring means 10a After converting the detected abnormal data into a PB signal, it is sent to the receiving device 3 via the telephone line 4.
This is a means of reporting.

FIG. 2 is a circuit diagram showing the hardware part of the monitoring device. In the figure, 12 is a generally known network control circuit that controls telephone lines. 13 is a microprocessor which, upon receiving the in-use detection signal or the ring width detection signal of the telephone I4 from the network control circuit 12, sends the line connection to the network control circuit 12 in order to control the telephone line. - Send open command and dialing command. In addition, when reporting abnormal data to the receiving device 3, the microprocessor 13 multiplies data such as a telephone number, building number, etc. and abnormal data stored in the memory 15 by PB when an incoming call response is detected. After converting from signal transmission 16 to PB data,
It is transmitted to the receiving device 3 via the network control circuit 12.

The operation of the monitoring device having the above configuration will be explained below using the flowchart shown in FIG. When started, the state of each equipment 2 is first acquired in step St, and then the process moves to step S2.

In step S2, it is determined whether or not there is a change in the state, and if the result of the determination is no, the process returns to step S1 to perform a process of importing the state of each equipment 2. If the determination result in step S2 is YES, the process proceeds to step S3 to create alarm data, and then proceeds to step S4 to set a 3.5 second timer.

Next, in step S5, it is determined whether or not the telephone is in use. If the result of the determination is no, the process moves to step S6, and it is determined whether or not there is an incoming call. If the determination in step S6 is NO, the process moves to step S7, and step S
It is determined whether the timer set in step 4 has timed out. If the determination result in step S7 is NO, the process returns to step S5 and is repeated.

On the other hand, if the determinations in step S5 and step S6 are YES, the process moves to step S8 and the 30-second timer is counted. Next, in step S9, the buzzer 11 as an alarm means is sounded, and step SIO
In step S8, it is determined whether or not the 30 second timer set in step S8 has timed out. Here, if the determination result in step S10 is NO, the process moves to step Sll and it is determined whether or not the telephone set 14 is in use. If the result of this determination is YES, the process returns to step S9, and if the result is no, the process proceeds to step S12, where it is determined whether or not there is an incoming call. If the result of this judgment is YES, the process returns to step S9, and if the result is no, the process goes to step S13 one time, stops the buzzer 11, and returns to step S4.

If the judgment result in the step SIO is YES, the buzzer 11 stops sounding in step S14, and then the process moves to step S15, where the network control circuit 12 is controlled to forcibly close the line. Thereafter, in step S16, processing is performed to restore the line, and the process moves to step S4.

On the other hand, if the determination result in step S7 is YES, the line is closed in step S17, and then the process moves to step S18, where a dial call is made, and then the process moves to step S19, where a 30-second timer is set. Next, in step S20, it is determined whether or not there is a response to the incoming call, and if the result of this determination is no, the process moves to step S21 to determine whether the 30 second timer set in step S19 has timed out. Decide whether or not. If the result of this determination is NO, the process returns to step S20 and waits for the 30 second timer to time up.

On the other hand, if the determination in step S20 is yes,
The process moves to step S22, where the abnormal signal is converted into a PB signal and then transmitted to the receiving device 3 via the telephone line 4. Then, this step S22. When the transmission process in step S23 is completed, the process moves to step S23 to execute the line release process, and then returns to step S1. Further, if the determination result in step S21 is YES and no response is obtained even after 30 seconds have elapsed, the process moves to step S23 and a line release process is performed.

In the above embodiment, sound is used to notify the user of the telephone that an abnormality has occurred, but the alarm may also be displayed by emitting light using a light emitting body such as a lamp. Needless to say.

〔Effect of the invention〕

As described above, according to the present invention, when it is detected that the telephone is in use or receiving a call when the monitoring means attempts to report abnormal data of each equipment detected, the telephone Since the telephone is configured to issue an alarm to the user of the telephone, the user of the telephone is annoyed by the alarm and hangs up the telephone, thus making it possible to promptly report an abnormality. In addition, if the user of this telephone does not hang up the phone, the line will be forcibly switched after a certain period of time and an abnormality will be reported. Therefore, abnormalities should be reported reliably and promptly. This has the effect of providing a highly reliable monitoring device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the functional configuration of a monitoring device according to the present invention, FIG. 2 is a circuit diagram showing a specific configuration, and FIG. 3 is a flowchart for explaining the operations of FIGS. 1 and 2. 1 and 4 are block diagrams showing conventional monitoring devices. 2 is each equipment, 3 is a receiving device, 4 is a telephone line, 10 is a monitoring device, 10a is a monitoring means, 10b is a line control means, 10
c is an alarm means, 10d is a line forced switching means, foe is an alarm means, and 11 is a buzzer. In addition, the same reference numerals indicate the same or equivalent parts. Agent Masuo Oiwa (2 others) Figure 2

Claims (3)

[Claims] (1) A monitoring means for monitoring the status of various equipment, an alarm means for transmitting the monitoring results of the monitoring means to a receiving device via a telephone line, processing for opening and closing the telephone line, and use of this telephone device. a line control means for detecting calls and incoming calls; an alarm means for generating an alarm when it is detected that the line is in use due to the telephone being in use or an incoming call; and a line forced switching means for forcibly switching the line when the line is not free even after a predetermined period of time has elapsed. (2) The monitoring device according to claim 1, wherein the warning means issues the warning by sound. (3) The monitoring device according to claim 1, wherein the alarm means displays an alarm by causing a light emitter to emit light.