JP3456886B2 - Monitoring system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a system for monitoring elevators, equipment and the like installed in a building or the like. 2. Description of the Related Art Conventionally, a communication device of an elevator and equipment monitoring device installed in a building is a communication line (telephone line).
The system regularly conducts system alert tests, including testing, to confirm the normality of the system. [0003] The communication line of the communication device can also be functionally configured to emit an abnormal signal when an error occurs. However, line disconnection due to trouble in telephone line construction and line disconnection due to unpaid telephone charges have often occurred. The normal use of the line is confirmed by the periodic notification from the monitoring (transmission side) communication device. In the method of the periodic alarm test, an alarm is periodically issued from a communication device such as an equipment monitoring device during a predetermined period (once daily) and registered at a maintenance information center. A check is made with a list of monitoring systems for equipment and the like. [0005] If the regular alert has not arrived at the maintenance information center within a predetermined period, the dispatcher is instructed to dispatch a response technician to check the status of the local elevator, equipment monitoring device, communication device, and the like. Is carried out. In the above-described method of confirming a line test of a communication device of an elevator and a facility equipment monitoring device by a system alert test, a telephone line for a communication test is used every day because a general line of a telephone company is used. Occurs on site. [0007] The telephone line connection between the communication device of the elevator and the equipment monitoring device and the maintenance information center is connected at the expense of the maintenance company. Therefore, as the number of monitored buildings increases, the communication fee increases. Go. [0008] The conventional monitoring system as described above has a problem in that the cost for maintaining the quality of the communication line increases more and more. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to obtain a monitoring system capable of maintaining the line quality while suppressing the cost of the above-mentioned periodic alerting. A monitoring system according to the present invention is a monitoring system using a caller ID notification service of a telephone line .
Installed at the maintenance information center and the
Receiving side connected to the receiving communication device via telephone line
A communication device, installed at the maintenance information center,
The host computer connected to the receiving communication device.
The transmission-side communication device, when performing a periodic alert
Forms a DC loop circuit in the telephone line and
Dial the receiver communication device at the center,
When the back tone is detected, the DC loop circuit is opened.
To end the call and issue an abnormal signal
To form a DC loop circuit in the telephone line,
Dial the receiver communication device at the
Call for a first predetermined time upon detection of
Only when a call is made, an abnormal signal is sent and the
Open the current loop circuit and hang up the telephone,
The device is connected directly to the telephone line when there is a polarity reversal of the telephone line.
Returns the primary response signal by forming a current loop circuit
When the caller ID is received, the DC loop circuit is opened.
Release to return the reception completion signal,
If the caller ID is not
Determines the known phone number as the communication destination of the periodic alert and
Transfer to the computer and the ringing
If it continues for a predetermined time, connect a DC loop to the telephone line.
Return a secondary response signal by forming a
When the status is changed, an abnormal signal is received and the host computer
To open the DC loop circuit and end the call.
The host computer sends the data to each building to be monitored.
The telephone number of the receiving communication device and the time of receiving the latest scheduled alert
The scheduled alert management file consisting of the scheduled alert time
File and the periodic report error file, and the receiving side
The communication device sends the caller ID
If the phone number was transferred, this transferred caller
The periodic alert management file corresponding to the telephone number
Rewrite the scheduled time of the
When the time comes, refer to the regular alarm management file,
Find the difference between the scheduled time of the building and the current time, and
Is greater than a third predetermined time that is greater than the
Occasionally, it is determined that a periodic alarm has occurred
The building data recorded in the file is
This is recorded in the alert error file . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 A monitoring system according to Embodiment 1 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, 100 is a communication device on the transmitting side,
Each is installed in the monitored building. In FIG. 1, reference numeral 200 denotes a communication device on the receiving side, and reference numeral 20 denotes a host computer, each of which is installed in a maintenance information center that monitors a plurality of buildings. The transmitting communication device 100 installed in the monitored building and the receiving communication device 200 installed in the maintenance information center are connected by a public telephone network 300 of a telephone company. I have. FIG. 2 is a block diagram showing the configuration of the communication device on the transmitting side 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 inversion detection circuit, and 105 is MODE.
It is an M 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 abnormality signal storage circuit, 113 denotes an elevator I / F connected to the elevator 10, 114 Reference numeral denotes an I / F for the equipment monitoring device connected to the equipment monitoring device 11, reference numeral 115 denotes a periodic alarm start circuit, reference numeral 116 denotes a maintenance computer I / F connected to the maintenance computer 12, and reference numeral 117 denotes a power supply unit. FIG. 3 is a block diagram showing a configuration of the communication device on the receiving side of the monitoring system according to the first embodiment of the present invention. In FIG. 3, 201 is a microprocessor, 202 is a call signal detection circuit, 203 is a DC loop generation circuit, 204 is a polarity inversion detection circuit, and 205 is MODE
It is an M circuit. In FIG. 2, reference numeral 210 denotes an incoming call response circuit, 211 denotes a caller ID notification signal detection circuit, 212 denotes an abnormal signal detection circuit, 213 denotes a reception signal storage circuit, and 214 denotes a host computer connected to the host computer 20. An I / F 215 is a power supply unit. 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 on the transmitting side of the monitoring system according to the first embodiment. FIG. 5 is a flowchart showing the operation of the communication device on the receiving side of the monitoring system according to the first embodiment. First, the operation of the communication device 100 on the transmitting side will be described. When the time of the specified periodic notification comes (step 152), the communication device 100 (microprocessor 101) makes a call to the communication device 200 of the maintenance information center. For this call, the DC loop generation circuit 103 turns on the switch S1 to form a DC loop of the circuit (step 153), and the MODEM circuit 105 generates a PB.
Communication device 200 at the maintenance information center by signal (receiving device)
Is dialed (step 154). Next, when the MODEM circuit 105 detects the sound of the RBT (ringback tone) from the telephone office (step 155), the DC loop generation circuit 103 turns off the switch S1 to open the DC loop circuit and call the telephone. The call ends (steps 156 to 157). When this RBT is returned, it is confirmed that the number notification of the caller ID notification of the telephone company has been completed. When an abnormal signal is to be issued, the DC loop generation circuit 103 turns on the switch S1 to form a DC loop of the circuit (step 160).
The M circuit 105 dials the communication device 200 (receiving device) of the maintenance information center using the PB signal (step 161). Next, when the MODEM circuit 105 detects the sound of the RBT (ringback tone) from the telephone office (step 162), it calls the other party for a certain period of time (for example, about 15 seconds) (step 163). Calling for a long time is an alert for an abnormal signal, and can be distinguished from a regular alert for a short call. Next, the communication device 20 on the maintenance information center side
When 0 is answered and a call is made (step 164), MO
The abnormal signal stored in the abnormal signal storage circuit 112 is transmitted by the DEM circuit 105 (step 165). When the call is completed, the switch S1 is turned off by the DC loop generation circuit 103 to open the DC loop circuit and the communication is terminated (steps 166, 1).
57). Next, the operation of the communication device 200 on the receiving side will be described. In the case of receiving a periodic notification, the signal from the exchange (subscriber line exchange) of the central office has polarity inversion (telephone lines L1 and L2), and the polarity inversion detection circuit 204 detects the signal and starts communication (step 251). ). Next, in order to receive the caller ID notification signal, the communication device 200 turns on the switch S1 by the DC loop generation circuit 203 to return the DC loop of the primary response signal, and returns the caller from the telephone exchange. Wait for the notification of the number (steps 252 to 253). Here, the caller ID notification number (telephone number of the communication device 100 on the building side) is transmitted by a MODEM signal. When the transmission is completed, the switch S1 is turned off by the DC loop generation circuit 203. Then, the DC loop which is the signal of the completion of reception is released (step 254). [0036] Then, the exchange of the central office sends a signal of 16 Hz.
Call signal (ringer signal) is sent,
Wait for incoming call ringing (step 255). Here, in the case of the periodic alarm on the building side, the line is terminated when the ringback tone is confirmed as described above, so that the ringing time is short, and the ringing continues for a certain period of time. Otherwise, the communication device 200 on the maintenance information center side determines the received telephone number of the caller ID notification as the communication destination of the periodic notification and transfers the information to the host computer 20 of the maintenance information center (step 25).
6). The host computer 20 searches for the building data of the pre-registered periodic alarm management file as shown in FIG. 8 from the telephone number, and rewrites the alarm time of the periodic alarm data of the building. To determine the quality of the periodic report, the latest scheduled report time is compared with the previous scheduled report time at each set period, and the time period determined from the previous scheduled report time is determined. Based on whether there is a regular alert. Then, a building that does not have a regular alert even at a predetermined time period is extracted. Details will be described later. On the other hand, when an alarm signal of an abnormal signal of the building equipment is received, the same operation is performed until the ringer receives the periodic notification, but the ringer continues to ring according to the sequence of the communication device 100 on the transmitting side. . After confirming that the ringer is ringing for a predetermined time (for example, about 10 seconds), the communication device 200 on the maintenance information center side forms a DC loop and captures the line (steps 260 to 261). Next, when communication becomes possible, the MODE
An abnormal signal is received by the M circuit 205 (step 26)
2). The received building abnormality signal is transferred to the host computer 20 of the maintenance information center (step 26).
2) Then, the abnormality information is displayed there. When the reception is completed, the DC loop is opened and the line is disconnected (step 263,
257). FIG. 6 is a diagram showing the connection operation of the caller ID notification service. Signal exchange between the subscriber line exchange and the communication device 200 on the receiving side is shown. As in the flowchart of FIG. 5, upon detecting the reversal of the polarity of the telephone line, the communication device 200 returns a primary response signal (DC loop formation) to the exchange. Next, when a caller ID notification is detected, a reception completion signal (DC loop break)
To the exchange. In the case of receiving a notification of an abnormal signal, upon detecting a calling signal for a predetermined time, a secondary response signal (DC loop formation) is returned to the exchange. Next, when the polarity of the telephone line is reversed, an abnormal signal is received. Next, the periodic alarm check in the host computer will be described with reference to FIGS. FIG. 7 is a flowchart showing the operation of the periodic alert check. FIG. 8 is a diagram showing the structure of the periodic alert management file. As shown in FIG. 8, the periodic alarm management file is arranged in the order of telephone numbers. For each building to be monitored, the building number "NO." , A "management number" of the building, and a "timed alarm time" that is the latest timed alarm reception time. The periodic alarm is confirmed at the determined cycle.
In the example of the description shown in FIG. 7, there is a periodic alert once every 24 hours, and it is checked whether the regular alert has arrived normally. At the time of the periodic check (step 2
81), a check is started from the beginning (NO. = 1) of the building number registered in the regular alarm management file of FIG. 8 (step 283). NO. = 1, the difference X between the latest scheduled alarm time and the current time is obtained, and if the difference X is within 25 hours, it is determined that the building is normal (steps 284 to 28).
5). If the difference X is 25 hours or more, the data of the building concerned is recorded in, for example, a periodic alarm file having the same configuration as the periodic alarm management file (step 28).
8). NO. If the building with the = 1 is completed, NO. =
The second building is checked, and all registered buildings are checked (steps 286 to 287). 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 periodically transmit the equipment monitoring communication device 10.
By confirming the telephone number of 0, the normality of the system including the line can be confirmed. That is, using the caller number notification function of the communication line, it is possible to identify and transmit an abnormal signal notification and a regular notification according to the length of the ringing time. According to the first embodiment, the calling function of the system and the normality of the communication line are read by reading the caller number notification signal of the caller number notification function service, thereby making the conventional call for line confirmation. You can check without paying. As described above, the surveillance system according to the present invention is installed in a monitored building in a surveillance system using a caller ID notification service of a telephone line.
The communication device on the sending side and the maintenance information center
Connected to the transmitting side communication device through a telephone line
A receiving communication device, installed in the maintenance information center,
A host computer connected to the receiving communication device
And the transmitting-side communication device is a
If a DC loop circuit is formed in the telephone line,
Dial the receiving side communication device of the information center and
When the switching back tone is detected, the DC loop circuit is opened.
Release to end the call and raise an abnormal signal
In such cases, a DC loop circuit is formed in the telephone line to
Dials the receiving communication device at the security information center,
First ring upon ringback tone detection
Continues only for a time and sends an abnormal signal when talking
Open the DC loop circuit and hang up the telephone,
When the communication device reverses the polarity of the telephone line,
The primary response signal by forming a DC loop circuit
Returns, and upon receiving the caller ID notification, activates the DC loop circuit.
By releasing it, a reception completion signal is returned, and
If it does not continue for the specified time of 2, the received caller ID
The phone number of the notification is determined to be the
To the computer and the ring tone sounds
2 if it continues for a predetermined time,
Return a secondary response signal by forming a loop
When the talk state is reached, an abnormal signal is received and the host computer
Data and release the DC loop circuit to end the call.
The host computer sends the data to each building to be monitored.
The telephone number of the receiving communication device and the time of receiving the latest scheduled alert
The scheduled alert management file consisting of the scheduled alert time
File and the periodic report error file, and the receiving side
The communication device sends the caller ID
If the phone number was transferred, this transferred caller
The periodic alert management file corresponding to the telephone number
Rewrite the scheduled time of the
When the time comes, refer to the regular alarm management file,
Find the difference between the scheduled time of the building and the current time, and
Is greater than a third predetermined time that is greater than the
The time, the scheduled alarm management determines that scheduled alarm error
The building data recorded in the file is
Since the information is recorded in the alert error file, it is possible to reduce the economic burden. [0055]

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 communication device on a transmitting side of the monitoring system according to the first embodiment of the present invention. FIG. 3 is a diagram showing a configuration of a communication device on a receiving side of the monitoring system according to the first embodiment of the present invention. FIG. 4 is a flowchart showing an operation of the communication device on the transmission side of the monitoring system according to the first embodiment of the present invention. FIG. 5 is a flowchart showing an operation of the communication device on the receiving side of the monitoring system according to the first embodiment of the present invention. FIG. 6 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. 7 is a flowchart showing an operation of a periodic alarm check of a host computer of the monitoring system according to the first embodiment of the present invention. FIG. 8 is a diagram showing a configuration of a periodic alert management file of the monitoring system according to the first embodiment of the present invention. [Description of Signs] 10 elevator, 11 equipment monitoring device, 20 host computer, 100 communication device on transmission side, 101
Microprocessor, 102 ringing signal detection circuit, 1
03 DC loop generation circuit, 104 polarity inversion detection circuit, 105 MODEM circuit, 110 maintenance information center telephone number storage circuit, 111 elevator, equipment abnormality transmission circuit, 112 abnormality signal accumulation circuit, 113 elevator I / F, 114 equipment monitoring I / F for device, 11
5 Scheduled alarm start-up circuit, 116 maintenance computer I / F, 117 power supply unit, 200 receiving side communication device, 201 microprocessor, 202 ringing signal detection circuit, 203 DC loop generation circuit, 204 polarity inversion detection circuit, 205 MODEM circuit 210, incoming call response circuit, 211 caller ID notification signal detection circuit, 212
Abnormal signal detection circuit, 213 received signal storage circuit, 21
4 host computer I / F, 215 power supply unit, 30
0 Public telephone network.

Claims (1)

(57) [Claims] [Claim 1] In a monitoring system using a caller ID notification service of a telephone line, a transmitting side communication device installed in a monitored building and a maintenance information center are installed. Power is sent to the transmitting side communication device.
A receiving-side communication device connected through a telephone line; and the receiving-side communication device installed at the maintenance information center.
And a host computer connected to the communication device , wherein the transmission-side communication device performs
A DC loop circuit is formed in the circuit to maintain the maintenance information center
Dials the receiving communication device of the
Detected, the DC loop circuit is opened and the telephone is
To end the call and issue an abnormal signal,
A DC loop circuit is formed on the talk line to maintain the maintenance information center.
Dial the recipient's communication device and ring back
Ringing continues for the first predetermined time when a tone is detected
When a call is made, an abnormal signal is sent to the DC loop.
The circuit is opened and the telephone is terminated, and the receiving communication device is activated when the polarity of the telephone line is inverted.
Primary by forming a DC loop circuit on the telephone line
When a response signal is returned and the caller ID is received, the DC
Release the loop circuit to return a reception completion signal,
If the beep does not continue for the second predetermined time, the
Judges the phone number of the caller ID notification as the
Transfer to the host computer, and
If the ringing continues for a second predetermined time,
Secondary response signal by forming a DC loop circuit on the wire
Is returned, and when a call is made, an abnormal signal is received and the host
Transfer to the computer and open the DC loop circuit
Hang up the phone and the host computer will send
The telephone number of the communication device and the reception time of the latest
The scheduled alert management file consisting of the scheduled alert time
File and the periodic report error file, and
Caller with notification of caller ID as the communication destination of the periodic alert from the device
If the number was transferred, this transferred caller ID
Of the periodic alarm management file corresponding to the telephone number of the notification
Rewrite the regular alarm time and at the time of regular check
Becomes a time, by referring to the scheduled alarm management file, the
Find the difference between the scheduled time of the building and the current time, and calculate the difference.
Is greater than or equal to a third predetermined time that is greater than the interval of the periodic alert
In this case, it is determined that a scheduled
The building data recorded in the
A monitoring system characterized by recording in an error file .