JPH0851681A - Remote monitoring method - Google Patents

Abstract

PURPOSE:To provide a remote monitoring method which immediately grasp a terminal device where a communication abnormality occurs. CONSTITUTION:When a terminal device 10 sends monitor information to a monitor equipment 20, the monitor equipment 20 is connected to the terminal 10 through a line after receiving the telephone number of the terminal device 10 at an origination source as terminal device discrimination information, and receives and records monitor information as a termination record. The monitor information includes information specifying the terminal device 10 at the transmission source. Even if a fault occurs to the communication with the terminal device 10 and the contents of the monitor information are destroyed, the terminal device 10 at the transmission source of the monitor information is specified with the previously obtained telephone number and stored as a termination record.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring method for observing equipment by arranging a terminal device in each building and intensively monitoring a plurality of terminal devices in a monitoring device, and in particular, a communication error has occurred. The present invention relates to a remote monitoring method for identifying a terminal device.

[0002]

2. Description of the Related Art FIG. 7 is a diagram showing a remote monitoring system for centrally remotely monitoring equipment installed in each building. In FIG. 7, each building is provided with a terminal device 10 that monitors equipment devices 1a to 1n such as disaster prevention and air conditioning. The monitoring device 20 intensively monitors the plurality of terminal devices 10 installed in each building via the public line 41 and the station 40.

The terminal device 10 includes a monitoring unit 11 that constantly monitors the equipments 1a to 1n, a central control unit 12 that controls the monitoring units 11, and a communication unit 13 that communicates with the monitoring device 20.
And a storage unit 14 that stores monitoring information about each of the equipment 1a to 1n. The monitoring device 20 inputs and outputs various information such as a communication unit 21 that communicates with each terminal device 10, a central control unit 22 that analyzes and judges received data, a storage unit 26 that accumulates received data, and various information. It has a display unit 23, an input unit 24, and a printing unit 25 for performing.

A procedure of a conventional remote monitoring method will be described.

When the central control unit 12 determines that some signal is input from the equipment 1a to 1n through the monitoring unit 11 and needs to be notified to the monitoring device 20, the fact is notified via the communication unit 13 as monitoring information. It is sent to the monitoring device 20.

[0006] When the monitoring device 20 receives the monitoring information, the content is analyzed and stored in the storage unit 26 in a predetermined format. The observer can centrally and remotely monitor the abnormality or the like of the equipment devices 1a to 1n of the building in the remote place by looking at the data in the storage unit 26 output to the display unit 23 or the printing unit 25.

By the way, in the remote monitoring system, in order to confirm not only the above-mentioned transmission of the real-time monitoring information but also the abnormality of the communication state such as the communication disconnection between the terminal device 20 and the monitoring device 10, From monitoring device 1
It periodically sends data to zero and vice versa. Note that this transmitted data is also data for monitoring the communication state of the terminal device 10 at a remote location, and thus can be used as monitoring information.

FIG. 8 is a flowchart of the operation of the terminal device 10 when the terminal device 10 periodically issues data, FIG. 9 is a flowchart of the operation of the monitoring device 20 which receives data, and FIG. FIG. 5 is a diagram showing a communication sequence in the device 10, the monitoring device 20, and the station 40 that mediates communication between the terminal device 10 and the monitoring device 20.

The procedure from connection to disconnection of the line between the terminal device 10 and the monitoring device 20 will be described below with reference to these figures.

At the terminal device 10, the line is off-hook (corresponding to the operation of picking up the handset) at the time when the monitoring information is periodically transmitted, that is, the time when the alarm is issued, and after confirming the dial tone from the station 40, the other party is selected. Sends a number (telephone number) (corresponds to dialing). At this time, the station 40 calls the monitoring device 20 when receiving the telephone number of the monitoring device 20 from the terminal device 10. Monitoring device 2
0 goes off-hook if there is a call signal. Station 40
Then connects the line between the terminal device 10 and the monitoring device 20.

After this, the terminal device 10 and the monitoring device 20
After confirming the line connection according to the predetermined communication procedure with
The data (monitoring information) is transmitted and then the line is disconnected.

In this way, the monitoring device 20 obtains the monitoring information from the terminal device 10 and analyzes the contents to monitor the equipments 1a to 1n and the terminal device 10 installed at remote locations. it can.

[0013]

However, in the prior art, when the content of the monitoring information received is destroyed due to a communication failure or the like, the monitoring device can immediately know that the monitoring information is abnormal. However, there is a problem in that it is not possible to immediately specify from which terminal device the monitoring information is sent, because the monitoring information includes only data specifying the terminal device that is the transmission destination.

In the prior art, when the above-mentioned trouble occurs, it is necessary to narrow down the terminal device in which the communication abnormality has occurred based on the incoming call records accumulated in the monitoring device, which requires a very long time or is specified. In some cases it was not possible.

The present invention has been made to solve the above problems, and an object thereof is to provide a remote monitoring method capable of immediately grasping a terminal device in which a communication abnormality has occurred.

[0016]

In order to achieve the above object, the invention as set forth in claim 1 uses the monitoring information sent from a terminal device installed in a remote place to generate an abnormality in the remote place. In the remote monitoring method for centrally monitoring the device, the terminal device identification information for specifying the terminal device to send the monitoring information is obtained in advance.

According to a second aspect of the present invention, in the remote monitoring method according to the first aspect, the terminal device to be remotely monitored by the monitoring device is registered in advance.

[0018]

In the remote monitoring method according to the present invention having the above-mentioned structure, the monitoring device obtains the terminal device identification information for specifying the terminal device in advance before receiving the monitoring information from the terminal device. Therefore, even if the content of the received monitoring information is destroyed due to a communication failure or the like, it is possible to immediately grasp the terminal device that is the transmission source of the monitoring information.

Further, a communication partner can be selected by registering and managing the terminal device monitored by the monitoring device in advance.

[0020]

EXAMPLES Example 1. Preferred embodiments of the present invention will be described below with reference to the drawings. The configuration of the remote monitoring system in this embodiment is the same as the conventional one. FIG. 1 is a diagram showing a communication sequence in the terminal device 10, the monitoring device 20, and the station 40 that mediates communication between the terminal device 10 and the monitoring device 20 in the present embodiment. Further, FIG. 2 is a flowchart of the operation in the monitoring device that receives data. The flowchart of the operation in the terminal device 10 is the same as the conventional one.

A feature of this embodiment is that, before the monitoring device 20 receives the monitoring information from the terminal device 10, the terminal device identification information for specifying the terminal device 10 which sends the monitoring information is obtained in advance. is there. As a result, the content of the monitoring information received is destroyed due to a communication error or the like, and even if the information identifying the terminal device contained therein becomes unreadable, the terminal device 10 that is the transmission source of the monitoring information is immediately Can be specified.

The procedure of this embodiment will be described below with reference to the drawings.

When the terminal device 10 transmits data to the monitoring device 20, the terminal device 10 goes off-hook, confirms the dial tone, and then sends the partner selection number (telephone number). At this time,
The station 40, which is a type 1 telecommunications carrier, calls the monitoring device 20 when receiving the telephone number of the monitoring device 20 from the terminal device 10. The monitoring device 20 confirms the incoming call by the polarity reversing operation and goes off hook. After that, the telephone number of the terminal device 10 that is the sender is received as the terminal device identification information. This telephone number can be easily obtained by using, for example, the Call ID function, that is, a caller ID notification service that informs the called party of the calling party's telephone number currently provided in the United States. Of course, it is not limited to this. In this way, a line is connected between the terminal device 10 and the monitoring device 20.

After that, the monitoring device 20 exchanges the ENQ signal and the ACK signal with the terminal device 10 to which the line is connected according to a predetermined communication procedure, and then receives the data (monitoring information). Here, even if a communication failure occurs with the terminal device 10 due to some cause and the contents of the monitoring information are destroyed, the terminal device 10 that is the transmission source of the monitoring information.
Can be specified by the terminal device identification information described above. After the data is normally received, the ACK signal and the EOT signal are exchanged according to a predetermined communication procedure, and then the line is disconnected.

In the above communication procedure, the monitor information when the monitor information is normally received and the defect information when the abnormality occurs are accumulated in the storage unit 26 as an incoming call record.
The stored data is output as an incoming call record table as shown in FIG. As is apparent from FIG. 3, the telephone number of the communication partner can be obtained from the monitoring information or the terminal device identification information sent in advance, and can be accumulated and output, so that the partner who has a problem during data communication can be immediately identified. Can be specified. In the case of defect information as shown in FIG. 3, it is possible to specify more easily by adding “x” in the “Result” column.

Example 2. FIG. 4 is a flowchart of the operation of the monitoring device that receives data. The terminal device 10, the monitoring device 20, and the terminal device 10 and the monitoring device 2
The communication sequence in the station 40 that mediates the communication with 0 and the flowchart of the operation in the terminal device 10 are the same as the conventional ones.

A feature of this embodiment is that the terminal device 10 to be remotely monitored by the monitoring device 20 is registered in advance on the monitoring device 20 side. For example, as shown in FIG. 5, the monitoring device 20 can be remotely controlled by preliminarily providing the monitoring device 20 with the telephone number of the terminal device 10 remotely monitored by the monitoring device 20 and the unique management number in association with each other. The line can be connected only to the terminal device 10 to be monitored, and line connection requests from other sources can be rejected.

The procedure of this embodiment will be described below with reference to the drawings.

When the terminal device 10 transmits data to the monitoring device 20, it goes off-hook, confirms the dial tone, and then sends the partner selection number (telephone number). At this time,
Upon receiving the telephone number of the monitoring device 20 from the terminal device 10, the station 40, which is a type 1 telecommunications carrier, calls the monitoring device 20. The monitoring device 20 confirms the incoming call by the polarity reversing operation and goes off hook. After that, the telephone number of the sender is received as the terminal device identification information. Here, if the caller's telephone number is not registered in the phone number / management number correspondence table shown in FIG. 5, it is considered to be abnormal, and the caller's telephone number is stored as the wrong telephone number in the above-mentioned storage unit 26 and stored in FIG. It is output as an incoming call record table as shown in. After that, the line is connected. The telephone number of the sender is the telephone number shown in Fig. 5.
If it is registered in the management number correspondence table, the subsequent processing is the same as that in the first embodiment, and the description thereof is omitted.

As described above, according to this embodiment, the communication device can be selected by registering the terminal device 10 to be remotely monitored by the monitoring device 20, and a line connection request in the case of a wrong telephone call or the like. Can be rejected.

[0031]

As described above, according to the invention described in claim 1, the terminal identification information is obtained in advance before the monitoring information including the information for specifying the terminal device is sent to the monitoring device. Therefore, even if the content of the monitoring information is destroyed due to a communication failure or the like, it is possible to immediately specify the terminal device that is the transmission source of the monitoring information.

According to the second aspect of the present invention, the communication device can select a communication partner by previously registering a terminal device to be remotely monitored by the monitoring device, and rejects a line connection request in the case of a wrong telephone call. It becomes possible to do.

[Brief description of drawings]

FIG. 1 is a diagram showing a communication sequence in a terminal device, a monitoring device, and a station in a first embodiment of a remote monitoring method according to the present invention.

FIG. 2 is a flowchart of the operation of the monitoring device according to the first embodiment.

FIG. 3 is a diagram showing an incoming call record table in the first embodiment.

FIG. 4 is a flowchart of the operation of the monitoring device according to the second embodiment.

FIG. 5 is a diagram showing a telephone number / management number correspondence table used in the second embodiment.

FIG. 6 is a diagram showing an incoming call record table in the second embodiment.

FIG. 7 is a diagram showing a remote monitoring system for centrally remote monitoring a terminal device for monitoring equipment.

FIG. 8 is a flowchart of the operation of the terminal device.

FIG. 9 is a flowchart of the operation of the conventional monitoring device.

FIG. 10 is a diagram showing a communication sequence in a conventional terminal device, monitoring device, and station.

[Explanation of symbols]

 1a to 1n Equipment 10 Terminal device 11 Monitoring unit 12, 22 Central control unit 13, 21 Communication unit 14, 26 Storage unit 20 Monitoring device 23 Display unit 24 Input unit 25 Printing unit 40 Station 41 Public line

Claims (2)

[Claims] 1. A remote monitoring method for centrally monitoring the occurrence of an abnormality in a remote place in a monitoring device by monitoring information sent from a terminal device installed in a remote place, wherein the terminal device sending out the monitoring information is A remote monitoring method, characterized in that identification information of a specified terminal device is obtained in advance. 2. The remote monitoring method according to claim 1, wherein the terminal device to be remotely monitored by the monitoring device is registered in advance.