JPH07288592A - Remote supervisory equipment - Google Patents

Abstract

PURPOSE:To allow a central supervisory equipment to reserve a line to itself at all times when there is a possibility that a terminal supervisory equipment not in busy sends notice data of a host notice level requiring immediacy to the central supervisory equipment. CONSTITUTION:A notice level indicating immediacy (urgency degree) is added to data notified by a terminal supervisory equipment 1 and a central supervisory equipment 3 discriminates the notice level. The central supervisory equipment 3 receives the notice data of the terminal supervisory equipment 1 and interrupts forcibly one reception line receiving a signal at a lowest notice level when not idle reception line is available and it is possible to receive the notice data of a higher notice level than that of the notice data received at present from the terminal supervisory equipment from which data are not received to keep the reception of the notice data of a higher notice level to be receptible at all times.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to operating conditions and breakdowns of various facilities and equipment such as houses and unmanned operating stations of water pump facilities, and the occurrence of disasters such as fires and gas leaks.
A remote monitoring device that centralizes security information such as illegal intrusions with a central monitoring device remote from the information source, and particularly a remote monitoring device that transmits the notification data output by the terminal monitoring device to the central monitoring device via a public telephone line. The present invention relates to a monitoring device.

[0002]

2. Description of the Related Art Conventionally, as a remote monitoring device for transmitting an alarm using a public line, one disclosed in Japanese Patent Laid-Open No. 368049/1992 is known. In this remote monitoring device, the center device (central monitoring device) has a plurality of incoming parts by individual lines, and the alarm collection device (terminal monitoring device) automatically dials the stored telephone number of the center device, When busy, another telephone number is automatically dialed in sequence, and an alarm is transferred to the center device by establishing a line connection.

[0003]

Generally, the contents of the notification in the remote monitoring device are various, and this is not so common as in the case of an emergency notification requiring a promptness such as a fire or a regular data transfer. Some reports do not require immediacy. If the above-mentioned conventional remote monitoring device is used to make such notifications of various contents, the line usage rate becomes high,
As a result, the probability that all the lines of the center device will be in a busy state also increases, so that the center device receives a message that does not require immediateness so that an emergency such as a fire is required. There is a possibility that the reception of the notification may be delayed or may not be received.

In order to avoid this situation, the number of lines of the center device may be made substantially equal to the number of alarm collecting devices.
This causes a problem that the use efficiency of the line is significantly reduced, and in this case as well, unless the number of lines of the center device and the number of alarm collection devices are the same, the problem as described above is completely avoided. You cannot do it. The present invention has been made in view of the above problems, and the transmission of highly immediate notification data is not hindered by the transmission of less immediate notification data, and the transmission efficiency of the line is reduced immediately. The purpose of the present invention is to provide a remote monitoring device that can send highly reliable report data.

[0005]

In order to achieve the above-mentioned object, a remote monitoring device according to claim 1 of the present invention sends notification data collected by a terminal monitoring device to a central monitoring device via a public telephone line. In the remote monitoring device for transmitting, the terminal monitoring device has a transmission unit that adds a notification level indicating the immediacy of the notification data to the notification data and transmits the notification data. A notification level determination unit that determines the notification level, a notification level storage unit that stores in advance the notification level of the notification data that can be reported by each terminal monitoring device, and a line status detection unit that detects the presence or absence of a vacant line,
When the line status detection unit detects that there is no free line, the terminal monitor not currently receiving the lowest notification level determined by the notification level determination unit among the notification levels in the notification level storage unit. And a line connection control unit for forcibly shutting off one line receiving the report data of the lowest report level when a report level higher than that of the device exists. It is characterized by that.

In order to achieve the above-mentioned object, the remote monitoring device according to claim 2 of the present invention is a remote monitoring device for transmitting notification data collected by a terminal monitoring device to a central monitoring device via a public telephone line. In the terminal monitoring device, a notification level determination unit that determines the notification level of the generated notification data, and a notification destination telephone number storage unit that stores one or more notification destination telephone numbers in association with the notification level, Automatically dials the report destination telephone number corresponding to the report level of the report data to be reported from the report destination telephone number storage unit, and transmits the report data together with the data indicating the report level to the automatic dial destination when the line is connected. Then
When the automatic dialing destination is busy, re-automatic dialing or another calling destination telephone number with the same reporting level is acquired from the reporting destination telephone number storage unit and automatically dialed. The central monitoring device has a control unit that acquires a report destination telephone number corresponding to the report level of data from the report destination telephone number storage unit and performs automatic dialing again, and the central monitoring device determines the report level of the report data being received. A notification level determination unit, a notification level storage unit that stores in advance the notification level of the notification data that can be reported by each terminal monitoring device, a line status detection unit that detects the presence or absence of a free line, and a free line When the line status detection unit detects that the communication data of the communication level lower than the communication level of the communication data that may be output by the terminal monitoring device other than receiving If the signal is characterized by having a line connection control unit to forcibly shut off one line that receives the notification data.

[0007]

[Operation] In the central monitoring device, the notification level storage unit stores in advance the notification levels that can be reported by each terminal monitoring device, and this information is output to the line connection control unit. The use status of a plurality of lines to which the notification data is transmitted is detected by the line status detection unit, and the presence / absence of a free line is output to the line connection control unit.

When the line status detection unit detects that there is an empty line, all the notification data received by the central monitoring unit are input to the line connection control unit, and all the notification data are input from the line connection control unit. Is output. When the line status detection unit detects that there is no available line, the notification level of each terminal monitoring device from the notification level storage unit is compared with the notification level of the input notification data. If there is notification data of a higher level than the notification level of the notification data currently being reported in the notification level of the terminal monitoring device that is not currently being reported, the output of that notification data is interrupted and the line Is forcibly shut down.

According to the second aspect of the present invention, a telephone number to be notified corresponding to the notification level of the notification data to be reported is acquired from the telephone number storage unit to be automatically dialed, and when the line is connected, the automatic dial destination is set. Send the notification data together with the data indicating the notification level, and if the automatic dialing destination is busy, redial automatic dialing or obtain another calling destination telephone number of the same reporting level from the reporting destination telephone number storage unit. Automatic dialing is performed, and when a call is interrupted, a callee telephone number corresponding to the report level of the report data to be reported is acquired from the reportee telephone number storage unit and redialed automatically.

[0010]

EXAMPLES Examples of the present invention will be described below. FIG. 1 shows the system configuration of the remote monitoring device. The remote monitoring device has a plurality of terminal monitoring devices (monitored stations) 1 and one central monitoring device (monitoring station) 3, and the terminal monitoring device 1 and one central monitoring device 3 are general public telephone line networks. 2 is communicatively connected.

In this remote monitoring device, the notification data obtained by monitoring by the terminal monitoring device 1 is transmitted to the central monitoring device 3 using the line of the general public telephone line network 2,
The central monitoring device 3 receives the notification data and performs appropriate processing. In this embodiment, the number of terminal monitoring devices 1 is 7, the number of central monitoring devices 3 is 1, and the number of receivable general public line networks 2 of the central monitoring devices 3 is 5. After that, the line No. 1, line NO. 2, line NO. 3, line NO. 4, line NO. 5 and the line No. for each line. Attach.

As shown in FIG. 2, the terminal monitoring device 1 comprises an input unit 12, a transmission unit 13, and a modem 14, and inputs data from the sensor 11 or the like to the input unit 12. The input data is output from the input unit 12 to the transmission unit 13, and the transmission unit 13 processes it as notification data, and the modem 1
The data is converted into a format that can be transmitted by the general public telephone network 2 by means of 4, and the central monitoring device 3 is notified.

The report data output by the terminal monitoring device 1 is
It is data information including data transmitted by the sensor 11, notification level information, and own station information, and the central monitoring device 3 is data of which notification level the terminal monitoring device 1 of the notification data transmission source is, and which station. This is data information that can be used to determine what kind of data is contained. In this report data format, item 1 is the report level, item 2 is the station number of the sender of the report data (own station information), item 3 Is the content of the report.

The monitoring function of the terminal monitoring device 1 varies depending on the object to be monitored, and an example of monitoring the terminal monitoring device 1 for each notification level will be given below as an example. The following are not all remote monitoring targets, but various remote monitoring targets exist as necessary. ○ Notification level 1: The one that requires the most immediacy Immediate monitoring of facility damage, fires, intruders, etc. ○ Notification level 2: The one that requires relatively immediacy Abnormal measurement values (equipment heating, voltage) Abnormal value, abnormal tank liquid level, etc.) ○ Notification level 3: Those that do not require relatively immediateness Comparison of acquisition of basic data such as voltage value, current value, flow rate measurement, temperature measurement, pressure measurement, etc. In this embodiment, notification data that does not use immediateness (regular notification data, etc.) is used to monitor the notification levels of three ranks as described above, and the terminal monitoring device 1 can make notification to the central monitoring device 3 as notification data. .

When there are a plurality of pieces of notification data to be reported, the terminal monitoring device 1 reports to the central monitoring device 3 in descending order of notification level. Transmission unit 13 of terminal monitoring device 1
Is a notification level determination unit 131, a notification control unit 132,
It is composed of the telephone number storage unit 133 of the report destination, and the input unit 1
The data to be output by 2 is input and output to the modem 14 as notification data.

The notification control unit 132 includes a level determination unit 131.
Input the notification level and data from the level judgment unit 1
The report destination telephone number corresponding to the report level determined in step 31 is selected from the report destination telephone number storage unit 133 and automatically dialed to connect to the line. The callee telephone number (line number) in the callee telephone number storage unit 133 is set according to the report level, and the highest report level 1 is the line number. 1
~ NO. No. 5, the second report level 2 is line No.
2 to NO. 5, the lowest notification level 3 is line NO. 4,
NO. 5 are available lines.

When the line connection is established after the automatic dialing, the notification control unit 132 determines its own station information, the notification level,
Also, the data is output as notification data to the central monitoring device 3 via the modem 14. On the other hand, when the line is not connected due to busy or the like, the telephone number of the next line corresponding to the same notification level is set as the telephone number of the destination telephone number storage unit 133.
Select from and dial automatically to connect to the line. For example, in the case of the notification level 2, the line No. 2 → NO. 3 → N
O. 4 → NO. 5 → NO. Repeat automatic dialing in order of 2.

Further, even when the report is interrupted due to a line disconnection by the central monitoring device 3 during the report, the telephone number of the next line corresponding to the same report level is selected from the reportee telephone number storage unit 133. Then, it will automatically dial in order to connect to the line. As shown in FIG. 3, the central monitoring device 3 includes a modem 31 provided for each line, and a control unit 32.
And a storage unit 33, an operation unit 34, a display unit 35, a printing unit 36, and a sounding unit 37.
Receive notification data from.

The modem 31 converts the notification data sent via the general public line network 2 into a format that can be processed by the control unit 32, and outputs it to the control unit 32. The central monitoring device 3 sets the line allocation according to the notification level, and the line N is set by the setting corresponding to the notification level of the notification destination telephone number in the notification destination telephone number storage unit 133 of the terminal monitoring device 1.
O. 1 is for notification level 1 only, line No. 2 and NO. No. 3 is common to both notification levels 1 and 2, and the line No. 4 and NO. 5 is for all reporting levels.

The control unit 32 includes a line status detection unit 321 and
Notification level storage unit 322 and notification level determination unit 323
It is composed of a line connection control unit 324 and a data processing unit 325, and inputs the report data converted by the modem 31. The line status detection unit 321 detects the usage status of the notification line of the notification data from the terminal monitoring device 1 and outputs information indicating that there is no available line to the line connection control unit 324.

The notification level storage unit 322 is used for the terminal monitoring device 1.
The notification level of the notification data that may be reported by each of the above is stored in advance. Table 1 shows an example of the notification level of the notification data that each terminal monitoring device 1 may report. In Table 1, there is a possibility that the notification data of the notification level marked with "O" will be reported from each terminal monitoring device.

[0022]

[Table 1]

The notification level determination unit 323 determines the notification level of the terminal monitoring device 1 that has been notified, and the line connection control unit 3
Output to 24. When the line connection control unit 324 inputs the information indicating that there are no available lines from the line status detection unit 321, the lowest notification level determined by the notification level determination unit 323 is set as the notification level of the notification level storage unit 322. , And that of the terminal monitoring device 1 which is not currently received. Then, when a higher notification level exists in the notification level storage unit 322, one line receiving the notification data of the lowest notification level is forcibly cut off.

[0024]

[Table 2]

The operation of the central monitoring apparatus 3 when the content of the notification level storage unit 322 is as shown in Table 1 and the notification status from the terminal monitoring apparatus is as shown in Table 2 will be described. The line status detection unit 321 determines that all the line No. 1-NO. Detecting that 5 is used, the information indicating that there is no available line is input to the line connection control unit 324. On the other hand, the notification level determination unit 323
Determines the notification level of all notification data being received. Therefore, all notification levels in Table 2 are recognized.

The line connection control unit 324 sets the lowest notification level among the notification levels determined by the notification level determination unit 323, that is, the notification level 3 to the notification level storage unit 3
22 is compared with the stored notification level. At this time,
The terminal monitoring device 1 currently receiving is excluded and compared. This is because if it is currently being received, it is possible to make a notification using that line.

The terminal monitoring device 1 currently receiving is N
O. 1-NO. No. 5 because it is 5. 6, NO. 7 is compared with the notification level of the terminal monitoring device 1. As a result,
Terminal monitoring device NO. Since there is a notification level 2 in 6,
The line number that is receiving the report data of report level 3. 1
Shut off forcibly. As a result, the line No. 1 becomes empty.

When there are a plurality of lines that have received the notification data of the lowest notification level determined by the notification level determination unit 323, only one of them should be cut off. When the notification interruption occurs due to the above-mentioned operation,
Although the terminal monitoring device 1 for which the notification has been interrupted starts the operation of transmitting the same notification data, if the retransmission is started immediately after the interruption of the notification, there is a high possibility that the notification will be interrupted again. Therefore, when the notification is interrupted, the retransmission of the notification data may be started after the elapse of a predetermined time. Note that, during the waiting time for retransmitting the notification data, if a state occurs in which notification data of a higher notification level than the notification data of the retransmission occurs, the notification data may be transmitted immediately.

The contents of the notification received by the central monitoring device 3 are displayed on the display unit 3 by the data processing operation by the data processing unit 325.
5 and is printed out by the printing unit 36 as necessary and stored in the storage unit 33. Further, depending on the content of the notification, for example, in the case of a notification of the notification level 1, the sounding unit 37 is activated. The sounding of the sounding unit 37 is stopped by the operation of the operation unit 34 by the monitor.

As shown in FIG. 4, the input section of the terminal monitoring device 1 has separate input sections 12a, 1 for each notification level.
2b and 12c, and the notification level of the notification data can be determined depending on which input unit the data is input from. When the communication of the notification data is interrupted, the terminal monitoring device 1 notifies the central monitoring device 3 of the notification data again, as shown in FIG. This is realized by providing the buffer 135 and the terminal monitoring device 1.

Since the monitoring targets may differ depending on the terminal monitoring device 1, the notification destinations of all the notification levels and all the lines (telephone numbers) of the central monitoring device 3 are registered in all the terminal monitoring devices 1. do not have to. Further, in the case of busy, a sequential automatic dial destination can be a telephone number corresponding to a reporting level and a telephone number corresponding to a reporting level lower than that. In this case, the stored contents of the telephone number to be notified of the terminal monitoring device 1 for performing the same function as that of the above-mentioned embodiment is as follows. No. 1 and report level 2 are line No. Line Nos. 2 and 3 and report level 3 It should be 4 and 5.

[0032]

According to the present invention, when all lines are used and there is a possibility that notification data with a high notification level may be reported from a terminal monitoring device that has not been reported yet,
Forcibly shuts down the lower-level receiving notification data line, and always has a free line, so the notification line is effectively used, efficient with a small number of lines, and highly immediate (urgent). Notification is always possible.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing an embodiment of a remote monitoring device.

FIG. 2 is a block diagram showing an embodiment of a terminal monitoring device.

FIG. 3 is a block diagram showing an embodiment of a central monitoring device.

FIG. 4 is a block diagram showing another embodiment of the terminal monitoring device.

FIG. 5 is a block diagram showing another embodiment of the central monitoring device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Terminal monitoring device 13 ... Transmission part 131 ... Notification level determination part 132 ... Notification control part 133 ... Notification destination telephone number storage part 134 ... Notification data storage part 135 ... Transmission buffer 2 ... General public telephone line network 3 ... Central monitoring Device 32 ... Control unit 321 ... Line status detection unit 322 ... Notification level storage unit 323 ... Notification level determination unit 324 ... Line connection control unit 325 ... Data processing unit

Claims (2)

[Claims] 1. A remote monitoring device for transmitting notification data collected by a terminal monitoring device to a central monitoring device via a public telephone line, wherein the terminal monitoring device indicates the immediacy of the notification data in the notification data. The central monitoring device has a transmission part for transmitting with a notification level added, and the central monitoring device has a notification level determination part for determining the notification level of the notification data being received, and the notification level of the notification data that can be reported by each terminal monitoring device. Is stored in advance, a line status detection unit that detects the presence / absence of a free line, and if the line status detection unit detects that there is no free line, the notification level determination unit determines If the lower notification level is compared with that of the terminal monitoring device that is not currently received among the notification levels in the notification level storage unit, and if there is a higher notification level, then the lowest Remote monitoring apparatus characterized by and a line connection control unit to forcibly shut off one line receiving the notification data of the report level. 2. A remote monitoring device for transmitting notification data collected by a terminal monitoring device to a central monitoring device via a public telephone line, wherein the terminal monitoring device determines a notification level of generated notification data. The determination unit, the report destination phone number storage unit that stores one or more report destination phone numbers corresponding to the report level, and the report destination phone number corresponding to the report level of the report data to be reported to the report destination phone When the line is connected, the data indicating the notification level is sent together with the data indicating the notification level when the line is connected, and the notification data is sent again. Other callee's caller's phone number is obtained from the callee's phone number storage unit, and is automatically dialed. And a control unit for re-automatically dialing the report destination telephone number corresponding to the report level of the report destination telephone number, and the central monitoring device determines the report level of the report data being received. A notification level determination unit, a notification level storage unit that pre-stores the notification level of the notification data that can be reported by each terminal monitoring device, a line status detection unit that detects the presence or absence of a free line, and that there is no free line When the line status detection unit detects that the notification data of the communication level lower than the communication level of the notification data that may be output by the terminal monitoring device other than receiving is received, the notification data is received. And a line connection control unit for forcibly shutting off one line.