JPH11344249A - Remote-monitoring system of air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure the operation information of all air-conditioner when failure in the air-conditioner to be monitored is detected or predicted when the failure is detected or predicted. SOLUTION: A system is provided with a monitoring device 13 that stops the reading of an operation state when the detection or the prediction of failure in an air-conditioning device is recognized by reading operation information regarding the operation state from a plurality of air-conditioners 11A, 11B, and 11C while successively updating the information and a central-monitoring device 14 for remotely monitoring the air-conditioners 11A, 11B, and 11C by reading the above failure is detected or predicted by starting communication with the monitoring device 13 from the point when the failure is detected or predicted. The monitoring device 13 continues stopping reading the operation information from all the air-conditioners 11A, 11B, and 11C until the central- monitoring device 14 reads the operation information of all the air-conditioners at a point when the above failure is detected or predicted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption chiller / heater,
The present invention relates to a remote control system for an air conditioner that remotely monitors an air conditioner such as a gas heat pump type air conditioner that drives a compressor with a gas engine and a packaged air conditioner that drives a compressor with an electric motor.

[0002]

2. Description of the Related Art An air conditioner, in which a central monitoring device remotely monitors an air conditioner such as an absorption chiller / heater, a gas heat pump air conditioner or a packaged air conditioner by using a monitoring device and a telephone line. A remote monitoring system is described, for example, in Japanese Utility Model Laid-Open No. 4-98041.

[0003] In this type of remote monitoring system, a monitoring device captures operating information on the operating states of a plurality of air conditioners to detect an abnormality of the air conditioner, and a central monitoring device transmits the above information transmitted from the monitoring device. The operation information and the abnormality detection information are read and the air conditioner is remotely monitored.

[0004]

However, while the monitoring device detects an abnormality of the air conditioner, and the central monitoring device reads from the monitoring device the operating information of the plurality of air conditioners at the time of detecting the abnormality, etc. In some cases, the monitoring device may newly acquire and update operation information from a plurality of air conditioners. In this case, the operation information at the time of the abnormality detection cannot be read from all the air conditioners, and the causal relationship between the air conditioners regarding the occurrence of the abnormality may not be recognized.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described circumstances, and when an abnormality of an air conditioner to be monitored is detected or predicted, when all abnormalities are detected or predicted. An object of the present invention is to provide a remote monitoring system for an air conditioner that can secure operation information of the air conditioner.

[0006]

According to the first aspect of the present invention,
A monitoring device that fetches the operating information related to the operation state from the plurality of air conditioners while sequentially updating the information, and stops the fetching of the operation information when the detection or prediction of the abnormality of the air conditioner is recognized; and the abnormality detection or prediction. Starting communication with the monitoring device from the time, reading the operating information of the air conditioner at the time of the abnormality detection or prediction from the monitoring device, having a central monitoring device for remotely monitoring the air conditioning device, Until the central monitoring device reads the operation information of all the air conditioners at the time of the abnormality detection or the prediction, the monitoring device continues to stop taking the operation information from all the air conditioners. It is assumed that.

The first aspect of the invention has the following operation.

[0008] Until the central monitoring device reads the operation information of all the air conditioners at the time of abnormality detection or prediction,
Since the monitoring device continues to stop taking the operation information from all the air conditioners, the central monitoring device can reliably obtain the operation information of all the air conditioners at the time of the abnormality detection or prediction. As a result, it is possible to recognize a causal relationship between the air conditioners regarding abnormality detection or prediction.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a system diagram showing a first embodiment of a remote monitoring system for an air conditioner according to the present invention.

The remote monitoring system 10 shown in FIG.
A plurality of air conditioners 11A, 11B, 11C... Are remotely monitored by a central monitoring device 14 using one telephone line 12 and one monitoring device 13. Here, in general, the monitoring device 13 includes the air conditioners 11A, 11B, 11
C., and the central monitoring device 14 is installed at a remote position from the air conditioners 11A, 11B, 11C.

The air conditioners 11A, 11B, 11C
Are the same type or different types of air conditioners among air conditioners such as an absorption type water heater / heater, a gas heat pump type air conditioner and a package type air conditioner.

The monitoring device 13 has a telephone line connection port 16 for connecting the telephone line 12 directly or via a modem 15 and a modem 20 (described later), and a plurality of air conditioners 11A, 11B, 11C. And a device connection port 18 for connecting a communication line 17 for operation, an operation state monitoring function, an abnormality detection prediction recognition function, a storage function, a call function,
It has a transmission function and a read completion determination function.

The operation state monitoring function monitors the operation state of the air conditioners 11A, 11B, 11C,... Connected to the equipment connection port 18 of the monitoring device 13 via the communication line 17.

When the air conditioners 11A, 11B, 11C, etc. have a function of detecting or predicting an abnormality from their own operating conditions, such as an absorption type water heater / cooler, the abnormality detection / prediction / recognition function is provided for the abnormality. When the air conditioners 11A, 11B, 11C... Do not detect or predict abnormalities from their own operating conditions, such as gas heat pump air conditioners and packaged air conditioners, Is to detect or foresee an abnormality from the above operating state and recognize it.

The storage function includes the operation information on the operation states of the air conditioners 11A, 11B and 11C monitored by the operation state monitoring function, and the air conditioners 11A, 11B and 11C recognized by the abnormality detection prediction recognition function. Abnormality information relating to the abnormality detection or prediction situation of the above is fetched and stored in a built-in memory while being sequentially updated.

The calling function is performed by the air conditioner 11A, 1
When the detection or prediction of the abnormality of 1B, 11C,... Is recognized, a calling signal is transmitted to the host computer 19 of the central monitoring device 14 via the telephone line 12 via the modem 15. At this time, in response to a request from the host computer 19, the function of transmitting the operation information and the abnormality information of the air conditioners 11A, 11B, 11C... Stored in the monitoring device 13 to the host computer 19 of the central monitoring device 14 is provided. This is the transmission function.

The read completion determining function is performed by the central monitoring device 1.
4 are all the air conditioners 11A, 11B, 11C at the time when any one abnormality is detected or predicted.
It is to determine whether or not the operation information and the abnormality information relating to the information are read from the built-in memory of the monitoring device 13.

On the other hand, the central monitoring device 14 has a host computer 19, which is connected to the telephone line 12 via a modem 20. The host computer 19 starts communication with the monitoring device 13 after receiving the call signal from the monitoring device 13 via the telephone line 12, reads the abnormality information stored in the built-in memory of the monitoring device 13, and performs air conditioning. Devices 11A, 11B, 11C ...
In any of the above cases, the abnormality is detected or predicted. Further, the host computer 19 is connected to the monitoring device 13.
From the operation information stored in the internal memory of all the air conditioners 11A at the time of detection or prediction of the abnormality,
The operation information of 11B, 11C is read, and the air conditioners 11A, 11B, 11C,... Are remotely monitored.

By the way, when the monitoring device 13 transmits the calling signal to the central monitoring device 14, the above-described operation state monitoring function, abnormality detection prediction recognition function and storage function are stopped, and the abnormality detection or prediction after the time is detected. Stop taking in operation information and abnormality information. Further, the monitoring device 13 controls all the air conditioners 11A, 11A when the central monitoring device 14 detects or predicts any one abnormality.
Until the reading completion determination function determines that the driving information and abnormality information relating to B, 11C,... Have been read, the above-described operation state monitoring function, abnormality detection prediction recognition function, and storage function stop are continued.

Next, the operation of the monitoring device 13 will be described with reference to FIG.

The monitoring device 13 periodically communicates with all the air conditioners 11A, 11B, 11C,... Connected by the communication line 17, and monitors the air conditioners 11A, 11B, 11C.
.. Are stored while being sequentially updated in a built-in memory (S1).

The monitoring device 13 includes the air conditioning device 11 described above.
In the periodic communication with A, 11B, 11C,..., The detection or prediction of abnormality is determined (S2).

When the monitoring device 13 recognizes the detection or prediction of the abnormality, the host computer 19 of the central monitoring device 14
To the air conditioner 11A, 11A
Stop regular communication with the air conditioners 11A, 11B, 11C,... And stop storing the operation information and the abnormality information on the air conditioners 11A, 11B, 11C,.

Host computer 1 of central monitoring device 14
9 starts communication with the monitoring device 13 by receiving a call signal from the monitoring device 13, and determines which of the air conditioners 11A, 11B, and 11C from the abnormality information stored in the built-in memory.
It is recognized whether an abnormality has been detected or predicted in..., And all the air conditioners 11 at the time of the abnormality detection or prediction are recognized.
The operation information of A, 11B, 11C,... Is read from the built-in memory of the monitoring device 13 (S4).

The monitoring device 13 determines whether the communication with the central monitoring device 14 has been completed (S5), and disconnects the line with the central monitoring device 14 using the modem 15 when the communication is completed (S6). . At this time, the central monitoring device 14 disconnects the line with the monitoring device 13 using the modem 20.

The monitoring device 13 determines whether the operation information and the abnormality information regarding all the air conditioners 11A, 11B, 11C... At the time of abnormality detection or prediction have been read by the central monitoring device 14 (S7). If not, the call signal is transmitted to the host computer 19 of the central monitoring device 14 again to resume communication with the central monitoring device 14.
1B, 11C... Are resumed periodically.

Therefore, according to the above-described embodiment, the central monitoring device 14 controls the air conditioners 11A, 11B, 11C.
Until the operation information of all the air conditioners 11A, 11B, 11C... At the time of abnormality detection or prediction of
1B, 11C, etc., the central monitoring device 14 controls all the air conditioners 11A, 11B, 11 at the time of the abnormality detection or prediction.
C can be reliably obtained, and as a result, the air conditioners 11A, 11B,
11C... A causal relationship between them can be recognized.

Although the present invention has been described based on one embodiment, the present invention is not limited to this.

[0030]

As described above, according to the air conditioner remote monitoring system of the present invention, the central monitoring device obtains the operation information of all the air conditioners at the time of abnormality detection or prediction of the air conditioner. Until it is read, the monitoring device continues to stop taking operation information from all the air conditioners, so when an abnormality of the air conditioner to be monitored is detected or predicted, the abnormality detection or prediction time Operation information of all air conditioners can be secured.

[Brief description of the drawings]

FIG. 1 is a system diagram showing one embodiment of a remote monitoring system for an air conditioner according to the present invention.

FIG. 2 is a flowchart showing the operation of the monitoring device of FIG.

[Explanation of symbols]

 Reference Signs List 10 remote monitoring system 11A, 11B, 11C air conditioner 13 monitoring device 14 central monitoring device

Claims (1)

[Claims] 1. A monitoring device for sequentially taking in operating information on an operating state from a plurality of air conditioners while updating the operating condition, and stopping the taking of the operating information when detecting the detection or prediction of abnormality with respect to the air conditioner; A central monitoring device that starts communication with the monitoring device at the time of the abnormality detection or prediction, reads operation information of the air conditioner at the time of the abnormality detection or prediction from the monitoring device, and remotely monitors the air conditioning device. Until the central monitoring device reads the operation information of all the air conditioners at the time of the abnormality detection or prediction,
The said monitoring apparatus is a remote monitoring system of an air conditioner characterized by continuing taking in and stopping operation information from all the said air conditioners.