JPH11164052A - Monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitoring system with which economical burden can be reduced while sharing a telephone line by distinguishing call incoming to the telephone set in a building control room and call incoming to communication equipment for monitor. SOLUTION: This monitoring system is provided with communication equipment 100B for returning a primary response signal by forming a DC loop circuit on a telephone set through a DC loop forming circuit 103 when the polarity inversion of the telephone line is detected by a polarity inversion detecting circuit 104 in the monitoring system using the caller number reporting service of the telephone line, returning a reception complete signal by opening the DC loop circuit through the DC loop forming circuit 103 when a caller number report is received, comparing a read caller number with a telephone number registered in a maintenance information center telephone number storage circuit 110 and transmitting the state signal of facility equipment such as an elevator when these numbers are coincident. Thus, data can be transmitted and received without having any special telephone line for monitor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for monitoring elevators, equipment and the like installed in buildings and the like.

[0002]

2. Description of the Related Art Conventionally, monitoring signals of an elevator 10 and equipment monitoring device 11 installed in a building to be monitored are shown in FIG.
As shown in (1), since the telephone line is exclusively used for transmission, the telephone line of the monitoring communication device 100 installed in the building management room and the telephone line of the telephone 12 in the building management room can be shared for communication.

In FIG. 5, an abnormal signal (detection of confinement failure, detection of general failure) from the elevator 10 is issued to the maintenance information center 200 through the communication device 100.
Further, the abnormality of the equipment is detected by the equipment monitoring device 11, and transmitted to the maintenance information center 2 through the communication device 100.
00 is issued.

On the other hand, telephone communication from the telephone set 12 in the building management room is called to the target telephone set 20 in the same manner as a normal telephone call to a telephone company through the communication device 100. In addition, the incoming call to the telephone 12 in the building management room is received from the telephone company to the communication device 100, but is connected in circuit to the telephone 12 in the building management room, and the telephone 12 in the building management room rings.

[0005] Thereafter, the method of monitoring the elevator 10 has become more sophisticated, and a mechanism has been developed in which status signals of the elevator 10 are periodically collected from the maintenance information center 200. Therefore, if the telephone line of the telephone 12 in the building management room and the telephone line of the communication device 100A are shared, the telephone 12 in the building management room rings when the maintenance data is collected from the maintenance information center 200. As shown in FIG.
A dedicated telephone line is required for the elevator 10 and the equipment monitoring device 11, and the total number of telephone lines for the control room telephone 12 is two.

In FIG. 6, an abnormal signal (detection of confinement failure, detection of general failure) from the elevator 10 is issued to the maintenance information center 200 through the communication device 100A. Further, the abnormality of the equipment is detected by the equipment monitoring device 11, and is notified to the maintenance information center 200 through the communication device 100A.

On the other hand, telephone communication from the telephone 12 in the building management room is connected to a single public line of a telephone company and operates independently of the abnormal communication device 100A such as equipment. Also, the communication device 10 from the maintenance information center 200
The communication device 100A responds to the incoming call to 0A and transmits the stored maintenance data.

Further, there is a no-ringing service as a service of a telephone company, and there is a service of calling a terminal (telephone) at each home and collecting data without ringing when a general line is idle. In this service, a data collection organization such as a meter reading center is connected to a terminal control device attached to and connected to a general line via a no-ringing trunk of a telephone company. When this service is considered as a monitoring signal of an elevator and a facility equipment monitoring device, voice cannot be transmitted.
Hz carrier wave is communicated), and the speed of the modem signal is fixed at 1200 BPS and is not used because it is not suitable for future high-speed transmission.

[0009]

In the conventional monitoring system with outgoing calls and incoming calls as described above, there is a problem that if a telephone line for monitoring the elevator and the equipment monitoring device is laid exclusively, an economic burden is imposed. There was a point.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and economically sharing a telephone line by distinguishing an incoming call to a telephone in a building management room from an incoming call to a monitoring communication device. It is an object of the present invention to obtain a surveillance system capable of suppressing a heavy burden.

[0011]

According to the present invention, there is provided a monitoring system using a caller ID notification service for a telephone line, wherein a DC loop circuit is formed in the telephone line when the polarity of the telephone line is inverted. By returning the primary response signal, upon receiving the caller number notification, the DC loop circuit is opened to return a reception completion signal, and the read caller number is compared with the telephone number registered in the telephone number storage circuit. , A communication device for transmitting a status signal of the monitoring device when they match.

Further, in the monitoring system according to the present invention, when the communication device does not match the read caller number with the telephone number registered in the telephone number storage circuit, the communication device sets the telephone line in the control room. It connects to a telephone.

Further, in the monitoring system according to the present invention, the first telephone number and the second telephone number are registered in the telephone number storage circuit, and the communication device transmits the caller number to the second telephone number. If the telephone number matches the telephone number of No. 1, the held data is transmitted.

Further, the monitoring system according to the present invention comprises:
When the caller number matches the second telephone number, the communication device rewrites the stored data.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 A monitoring system according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing an overall configuration of a monitoring system according to Embodiment 1 of the present invention. In the drawings, the same reference numerals indicate the same or corresponding parts.

In FIG. 1, 10 is an elevator, 11 is a facility equipment monitoring device, 13 is a control room telephone, and 100B is a communication device, each of which is installed in a monitored building.

In FIG. 1, reference numeral 20 denotes an external telephone, and reference numeral 200 denotes a maintenance information center that includes a communication device and monitors a plurality of buildings.

The communication device 100B installed in the monitored building and the communication device installed in the maintenance information center 200 are connected by a public telephone network 300 of a telephone company.

FIG. 2 is a block diagram showing a configuration of a communication device of the monitoring system according to the first embodiment of the present invention.

In FIG. 2, 101 is a microprocessor, 102 is a call signal detection circuit, 103 is a DC loop generation circuit, 104 is a polarity reversal detection circuit, and 105 is MODE.
An M circuit 106 is the telephone switching circuit.

In FIG. 1, reference numeral 110 denotes a maintenance information center telephone number storage circuit, 111 denotes an elevator, an equipment abnormality transmission circuit, 112 denotes an abnormal signal storage circuit, 113 denotes an elevator I / F connected to the elevator 10, 114 Is an I / F for the equipment monitoring device connected to the equipment monitoring device 11, 115 is a periodic alert start circuit, 116 is a maintenance computer I / F connected to the maintenance computer 12, 117 is a power supply unit, and 118 is a transmission A subscriber number notification signal detection circuit, 119 is a caller number notification signal comparison circuit, and 120 is an external terminal state detection circuit.

Next, the operation of the monitoring system according to the first embodiment will be described with reference to FIGS. FIG. 4 is a flowchart showing the operation of the communication device of the monitored building of the monitoring system according to the first embodiment.

First, the operation of receiving (incoming) the communication device 100B will be described. The signal from the telephone exchange (subscriber line exchange) has polarity inversion (telephone lines L1 and L2), which is detected by the polarity inversion detection circuit 104 and communication is started (step 151).

At this time, the relays of the switches S2 and S3 are constantly picked up, the contacts of the switches S2 and S3 are connected to the MODEM circuit 105, and the external telephone line is connected to the MODEM circuit 105.

Next, the relay of the switch S1 is picked up to form a DC loop, that is, the switch S1 is turned on by the DC loop generation circuit 103 to return a primary response signal (step 152).

Next, it waits for notification of the caller ID from the telephone exchange (step 153).

Next, the caller number is transmitted as a MODEM signal. When the transmission is completed, the relay of the switch S1 is dropped out to break the DC loop. That is, the switch S1 is turned off by the DC loop generation circuit 103.
FF is performed to open the DC loop which is the signal of the completion of reception (step 154).

Next, the transmitted caller number is MOD
Caller ID notification signal detection circuit 1 through EM circuit 105
Read at 18. The read caller number is compared with a telephone number registered in advance in the maintenance information center telephone number storage circuit 110 by the maintenance computer 12 by the caller number notification signal comparison circuit 119 (step 1).
55).

In the case of an incoming call from the maintenance information center 200, the caller number and the number in the maintenance information center telephone number storage circuit 110 are compared by the caller number notification signal comparison circuit 119, and the numbers match.

Next, since a ringing signal (ringer signal) of 16 Hz is transmitted from the exchange of the central office, the ringing signal is detected by the ringing signal detection circuit 102 and the ringing of the incoming call is awaited (step 160).

Next, after confirming that the sound is ringing, a DC loop is formed and a line is captured (step 161).
When the DC loop, which is the secondary response signal, is returned, the polarities of the telephone lines L1 and L2 are reversed, and the telephone line enters a talk state (step 1).
62).

Next, when the communication is enabled, the status signal of the elevator, the status signal of the equipment and the like are transmitted to the MODEM.
The information is transmitted to the maintenance information center 200 by the circuit 105 (step 163).

The communication is terminated by dropping out the relay of the switch S1 and breaking the DC loop. That is, when the call is completed, the DC loop is released and the line is disconnected (step 164).

In the case of an incoming call to the building management room, since the incoming call is from the general telephone set 20 in step 155, the comparison result of the comparing circuit 119 does not match the registered number. Proceed to step 170 to switch the telephone line to the building management room.

In step 170, the relay of the switches S2 and S3 is operated by the telephone switching circuit 106 to connect the contact circuit to the control room telephone 13 side. The telephone office exchange sends a 16 Hz ringing signal,
When detected by the ringing signal detection circuit 102, the switch S
1 is picked up and the telephone lines L1 and L2 are connected to the telephone 13 in the management room.

The calling signal is transmitted to the telephone 13 in the building management room connected to the telephone lines T1 and T2.
Sounds. When the receiver of the telephone 13 in the building management room is lifted, the DC loop is closed and a secondary response signal is returned to the exchange. As a result, the polarities of the telephone lines L1 and L2 are restored, and the telephone lines L1 and L2 enter a communicable state. Then, the communication device 100B
Are the external terminal state detection circuits 1 in steps 171 to 174
20 detects the ringing, telephone call, and end of the telephone 13 in the building management room (outside), releases the DC loop and disconnects the line.

FIG. 4 is a diagram showing the connection operation of the caller ID notification service. Signal exchange between the subscriber line exchange and the communication device 100B on the building side is shown.

As in the flowchart of FIG. 3, upon detecting the reversal of the telephone line polarity, the communication device 100B returns a primary response signal (DC loop formation) to the exchange. Next, when the caller ID notification is detected, a reception completion signal (DC loop break) is returned to the exchange. Next, when a call signal is detected, a secondary response signal (DC loop formation) is returned to the exchange. Then, when the polarity of the telephone line is restored, the status signal of the elevator, the equipment, etc. is transmitted.

Hereinafter, transmission of the abnormal signal will be described.
An abnormality is detected in the elevator 10, and the elevator I /
The information is stored in the abnormal signal accumulation circuit 112 via F113. The stored data starts transmitting an abnormal signal through the elevator and equipment abnormality transmitting circuit 111.

Here, the relays of the switches S2 and S3 are always picked up, and the circuits of the switches S2 and S3 are closed and connected to the MODEM circuit 105 side.

The DC loop generation circuit 103 picks up the relay of the switch S1 and closes the DC loop. Next, from the MODEM circuit 105 to the maintenance information center 200
A telephone number is transmitted by a DTMF signal (PB signal) toward.

Next, when the maintenance information center 200 responds, it transmits the management number of the building to be monitored and the abnormal signal code. When the communication is completed, the relay of the switch S1 is opened to cut off the circuit.

Hereinafter, a telephone call from the building management room will be described. Off-hook the receiver of the telephone 13 in the building management room. The state of the DC loop of the telephone lines T1 and T2 is detected by the external terminal state detection circuit 120.

Next, when the off-hook of the receiver of the control room telephone 13 is detected by the external terminal state detection circuit 120,
The DC loop generation circuit 103 picks up the relay of the switch S1, and the telephone switching circuit 106 picks up the relays of the switches S2 and S3, and connects the telephone lines L1 and L2 to the control room telephone 13.

Then, a DC loop through the management room telephone 13 is formed. Push down the phone number and start the phone. There are polarity inversions in the call state and the call termination state, respectively. Upon detection of the end of call, the DC loop generation circuit 103 drops out the relay of the switch S1 to open the circuit, and the telephone switching circuit 1
At 06, the relays of the switches S2 and S3 are dropped out and switched to the MODEM circuit 105 side.

That is, the monitoring system according to the first embodiment of the present invention uses the caller ID notification service of the communication line to judge the purpose of the outgoing call and change the destination to thereby provide a monitoring system. Without having a special telephone line,
It enables transmission and reception of monitoring signals.

Embodiment 2 A monitoring system according to Embodiment 2 of the present invention will be described below. The configuration of the second embodiment is the same as that of the first embodiment.

In FIGS. 1 and 2, the telephone lines L1, L
2 is detected by the polarity inversion detection circuit 104. The switches S2 and S
The relay of No. 3 is always picked up and the switch S
The contacts S2 and S3 are connected to the MODEM circuit 105 side.

Next, the relay of the switch S1 is picked up by the DC loop generation circuit 103, the DC loop circuit is closed, and a primary response signal is returned.

Next, when a caller ID notification is transmitted from the exchange of the central office, the transmitted caller ID is MOD.
Caller ID notification signal detection circuit 1 through EM circuit 105
Read at 18.

Next, the read caller number and the telephone number registered in advance in the maintenance information center telephone number storage circuit 110 by the maintenance computer 12 are stored.
The comparison is performed by the caller number notification signal comparison circuit 119.

In the case of an incoming call from the maintenance information center 200, when the caller number and the telephone number in the telephone number storage circuit 110 for the maintenance information center are compared by the caller number notification signal comparison circuit 119, they match. The operation is similar to that of the first embodiment.

In the case of the second embodiment, the telephone numbers registered in the maintenance information center telephone number storage circuit 110 include not only the telephone number of the maintenance information center 200 but also
A telephone number A that can refer to monitoring data such as a telephone number registered in the maintenance information center telephone number storage circuit 110 and a telephone number and the like registered in the maintenance information center telephone number storage circuit 110 in addition to the reference. And a telephone number B whose monitoring data can be rewritten.

When the caller number matches the telephone number A, the telephone number registered in the maintenance information center telephone number storage circuit 110 is transmitted.

If the caller number matches the telephone number B, the telephone number registered in the maintenance information center telephone number storage circuit 110 is transmitted, or the telephone number is rewritten as required.

When the caller number is not notified, or the caller number is stored in advance in the maintenance information center telephone number storage circuit 1
Incoming calls not registered in 10 are sent to the telephone 1 in the building management room.
3 and the MODEM circuit 105 of the communication device 100B.
Connection to is not possible. As a result, communication connection with the wrongly connected partner becomes impossible, and no trouble occurs due to data transmission / reception, thereby improving the security of the entire system.

That is, the surveillance system according to the second embodiment of the present invention uses the caller ID notification service of the communication line to determine the transmitted telephone number and change the destination, thereby making it possible to identify the wrong telephone. Connection can be prevented, and monitoring data such as a telephone number can be prevented from being sent to an incorrect location and stored data can be prevented from being incorrectly rewritten.

[0058]

As described above, in the monitoring system according to the present invention, a DC loop circuit is formed in the telephone line when the polarity of the telephone line is inverted in the monitoring system using the caller ID notification service of the telephone line. To return the primary response signal, and upon receiving the caller number notification, release the DC loop circuit to return a reception completion signal, and compare the read caller number with the telephone number registered in the telephone number storage circuit. However, since the communication device for transmitting the status signal of the monitoring device is provided when they match, the transmission and reception of data can be performed without having a special telephone line for monitoring.

As described above, according to the monitoring system of the present invention, when the communication device does not match the read caller number with the telephone number registered in the telephone number storage circuit, the communication device may Since the line is connected to the telephone in the management room, there is an effect that data can be transmitted and received without having a special telephone line for monitoring.

Further, as described above, in the monitoring system according to the present invention, the first telephone number and the second telephone number are registered in the telephone number storage circuit, and the communication device transmits the outgoing call. When the user number matches the first telephone number, the held data is transmitted, so that it is possible to prevent the data from being transmitted to the wrong place.

Further, the monitoring system according to the present invention comprises:
As described above, when the caller number matches the second telephone number, the communication device rewrites the held data, so that the effect of preventing erroneous rewriting of data can be prevented. Play.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of a monitoring system according to Embodiment 1 of the present invention.

FIG. 2 is a diagram showing a configuration of a building-side communication device of the monitoring system according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing an operation of the communication device on the building side of the monitoring system according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a connection operation of a caller ID notification service of the monitoring system according to the first embodiment of the present invention.

FIG. 5 is a diagram showing an entire configuration of a conventional monitoring system.

FIG. 6 is a diagram showing an overall configuration of another conventional monitoring system.

[Explanation of symbols]

10 elevator, 11 equipment monitoring equipment, 13 control room telephone, 20 telephone, 100B communication device, 10
1 microprocessor, 102 ringing signal detection circuit,
103 DC loop generation circuit, 104 polarity reversal detection circuit, 105 MODEM circuit, 106 telephone switching circuit, 110 maintenance information center telephone number storage circuit, 11
Reference Signs List 1 elevator, equipment abnormality transmission circuit, 112 abnormality signal accumulation circuit, 113 elevator I / F, 114 equipment equipment monitoring device I / F, 115 regular alarm start circuit, 11
6 Maintenance computer I / F, 117 power supply unit, 118 caller number notification signal detection circuit, 119 caller number notification signal comparison circuit, 120 external terminal status detection circuit, 200 maintenance information center, 300 public telephone line network.

Claims (4)

[Claims] In a monitoring system using a caller ID notification service for a telephone line, when there is a polarity reversal of the telephone line, a primary response signal is returned by forming a DC loop circuit in the telephone line to notify the caller ID. Upon receipt of the call, the DC loop circuit is released to return a reception completion signal, and the read caller number is compared with the telephone number registered in the telephone number storage circuit. A monitoring system comprising a communication device for transmitting. 2. The communication device according to claim 1, wherein, when the read caller number does not match the telephone number registered in the telephone number storage circuit, the communication device connects the telephone line to a telephone in a management room. The monitoring system according to claim 1, wherein 3. A first telephone number and a second telephone number are registered in the telephone number storage circuit, and the communication device is configured to execute a process when the caller number matches the first telephone number. 3. The monitoring system according to claim 2, wherein the transmitting unit transmits the held data. 4. The monitoring system according to claim 2, wherein the communication device rewrites the stored data when the caller number matches the second telephone number.