JP2010032131A - Remote monitoring data collecting method for refrigerating machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote control data collecting method for a refrigerating machine capable of collecting only operation data necessary during operation of the refrigerating machine in a monitoring center. <P>SOLUTION: The remote monitoring data collecting method for the refrigerating machine includes a refrigerating machine control device 1a for controlling the operation of the refrigerating machine 1, a remote monitoring terminal 2 connected to the refrigerating machine control device 1a to monitor the operating state of the refrigerating machine 1 and acquiring the operation data, and the monitoring center 4 remotely connected to the remote monitoring terminal 2 via a communication line network 3. The operating state and operation data are transmitted from the remoter monitoring terminal 2 to the monitoring center 4. The remote monitoring terminal 2 stores the operation data by discriminating the operation data during operation of the refrigerating machine 1 from that during stop of the refrigerating machine, transmits the operation data during operation to the monitoring center 4, and stores information on the obtained operation data in accordance with a request from the monitoring center 4 for transmitting the operation data for a predetermined time regarding the refrigerating machine 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a remote monitoring data collection method for a refrigerator that collects continuous operation data such as refrigerator temperature data at a monitoring center in a refrigerator remote monitoring system.

  In remote monitoring of refrigerators, it is important to know all the continuous data such as the temperature data of each part during the operation of the refrigerator for abnormality detection and sign analysis. All data periodically collected by the monitoring terminal is collected via the communication network.

However, if this communication line network is a pay-as-you-go communication means such as a public telephone line, an excessive communication fee is required to collect all monitoring data. is important. As a method of efficiently collecting data, not limited to a refrigerator, there is a method of checking collected data on the monitoring center side and requesting collection of only deficient data (see Patent Document 1 and Patent Document 2).
JP-A-9-319770 Japanese Patent Laid-Open No. 5-94545

  In the above-described prior art, the data content held on the remote monitoring terminal side is not considered in order to check whether the data has been acquired on the monitoring center side. For example, even if the refrigerator is not operating, As a result, there is a problem that useless communication processing time tends to be long.

  An object of the present invention is to provide a remote monitoring data collection method for a refrigerator that can collect only operation data required when the refrigerator is in operation at a monitoring center.

  In order to solve the above-mentioned object, the remote monitoring data collection method for a refrigerator according to the present invention is characterized in that the remote monitoring terminal stores operation data separately during operation of the refrigerator and during suspension, and operates during operation. The data is transmitted to the monitoring center, and the acquired information of operating data is stored in response to a request for operating data transmission of the refrigerator for a predetermined time from the monitoring center.

  Further, the remote monitoring data collection method for a refrigerator according to the present invention is the above invention, wherein the remote monitoring terminal monitors the operation data when the refrigerator is in an abnormal state even when the operation data is in a suspended state. It transmits to a center, It is characterized by the above-mentioned.

  The remote monitoring data collection method for a refrigerator according to the present invention transmits only necessary operation data during operation of the refrigerator to the monitoring center, so that unnecessary communication processing can be eliminated and the monitoring center has been acquired. Since the remote monitoring terminal recognizes the data and eliminates the transmission of duplicate data, the communication processing time can be shortened compared to the conventional case.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a configuration diagram of a refrigerator remote monitoring system to which an embodiment of a refrigerator remote monitoring data collection method according to the present invention is applied.

  As shown in FIG. 1, the refrigerator remote monitoring system to which this embodiment is applied is connected to the refrigerator control device 1a that controls the operation of the refrigerator 1 and the refrigerator control device 1a, and monitors its operation status. A remote monitoring terminal 2 for storing the refrigerator operating data and a monitoring center 4 connected to the remote monitoring terminal 2 via the communication network 3 and remotely monitoring the refrigerator 1 are provided. The monitoring center 4 is connected to the remote monitoring terminal 2 via the communication line network 3 and collects the operation data of the refrigerator 1 stored in the remote monitoring terminal 2, and the data collection communication device 4a. And a collected data storage device 4b for storing the refrigerator operating data collected in (1).

  FIG. 2 is a diagram showing data held in a remote monitoring terminal provided in the refrigerator remote monitoring system shown in FIG.

  As shown in FIG. 2, the storage operation data 5 held in the remote monitoring terminal 2 described above is sent to the operation data time stamp 5 a, the operation status 5 b indicating that the refrigerator 1 is in operation or not, and the monitoring center 4. The transmission status 5c indicating that the operation data has been transmitted and not transmitted, and the abnormal status 5d indicating the normal state and the abnormal state of the refrigerator 1 are included.

  FIG. 3 is a remote monitoring terminal data transmission flowchart in the refrigerator remote monitoring data collection showing one embodiment of the present invention. Hereinafter, an embodiment of a remote monitoring data collection method for a refrigerator according to the present invention will be described with reference to FIGS.

  As shown in FIG. 3, the remote monitoring terminal 2 monitors the operating state of the refrigerator 1 every 5 minutes, for example (procedure S1), and stores the operation data of the refrigerator control device 1a therein (procedure S2). At this time, the operation status 5b of the refrigerator control device 1a is stored in the remote monitoring terminal 2 together with the operation data. In this way, the operation data is stored in the remote monitoring terminal 2 as shown in FIG. 2, and when there is no free memory storage area in the remote monitoring terminal 2, the old operation data is overwritten and erased. Next, in response to a periodic request from the monitoring center 4, transmission of operation data stored in the monitoring center 4 from the remote monitoring terminal 2 is started (step S3).

  At this time, the remote monitoring terminal 2 collects only the data in which the operation status 5b is in operation (procedure S4) and the transmission status 5c is not transmitted (procedure S5) among the operation data in the memory. It transmits to the apparatus 4a (procedure S6). When all the request data from the monitoring center 4 has been processed (step S8), the operation data in the remote monitoring terminal 2 acquired by the data collection communication device 4a updates the transmission status 5c to “transmitted” (step S8). Procedure S10).

  Note that when the operation data transmission status has already been transmitted in step S5, the operation data is not transmitted (step S7). If processing for the requested data is left as determined in step S8, the remaining operation data is processed (step S9).

  In this way, the data collection communication device 4a in the monitoring center 4 acquires the operation data in the remote monitoring terminal 2 via the communication line network 3, and stores it in the collected data storage device 4b.

  Further, in the remote monitoring terminal 2 that constantly monitors the operation status of the refrigerator 1, when an abnormality of the refrigerator 1 is recognized (procedure S11), the operation data from the occurrence of the abnormality to, for example, 30 minutes before the operation S5 (Step S11). At this time, the abnormal status 5d of the refrigerator control device 1 is stored as abnormal in the remote monitoring terminal 2 together with the operation data. Then, it immediately connects to the data collection communication device 4a in the monitoring center 4 via the communication line network 3, and transmits the operation data up to 30 minutes before the point of abnormality detection and stores it in the collection data storage device 4b. At this time, the remote monitoring terminal 2 transmits only data that has not been transmitted in the transmission status 5c to the data collection communication device 4a regardless of the operation status 5b (procedure S6). The operation data in the remote monitoring terminal 2 acquired in this way updates the transmission status 5c to “transmitted” (procedure S10). In addition, as described in the above-described procedure S11, the operation data with the abnormality status 5d that is abnormal and the operation data from 30 minutes before the abnormality detection are transmitted to the monitoring center 4 even though the operation status is 5b. To do.

  Thus, according to one embodiment of the refrigerator remote monitoring data collection method according to the present invention to be performed, only necessary operation data during operation of the refrigerator 1 is transmitted to the monitoring center 4, so useless communication processing Since the remote monitoring terminal 2 recognizes the data acquired by the monitoring center 4 and eliminates the transmission of duplicate data, the communication processing time can be shortened.

1 is a configuration diagram of a refrigerator remote monitoring system to which an embodiment of a refrigerator remote monitoring data collection method according to the present invention is applied. FIG. It is a figure which shows the data hold | maintained at the remote monitoring terminal with which the refrigerator remote monitoring system shown in FIG. 1 is equipped. It is a flowchart which shows one Embodiment of the remote monitoring data collection method of the refrigerator which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 1a Refrigerator control apparatus 2 Remote monitoring terminal 3 Communication network 4 Monitoring center 4a Data collection communication apparatus 4b Collection data storage apparatus 5 Storage operation data 5a Time stamp 5b Operation status 5c Transmission status 5d Abnormal status

Claims (2)

A refrigerator control device that controls the operation of the refrigerator, a remote monitoring terminal that is connected to the refrigerator control device and monitors the operation state of the refrigerator and obtains operation data, and the remote monitoring terminal and the communication line A remote monitoring data collection method for a refrigerator, comprising a monitoring center remotely connected via a network, wherein the remote monitoring terminal transmits operation status and operation data to the monitoring center;
The remote monitoring terminal stores the operation data separately while the refrigerator is in operation and during suspension, transmits the operation data during operation to the monitoring center, and transmits the operation data from the monitoring center to the predetermined refrigerator. A method for collecting remote monitoring data of a refrigerator, characterized by storing acquired information of operating data in response to a request for transmitting operating data over time. In the refrigerator remote monitoring data collection method according to claim 1,
A remote monitoring data collection method for a refrigerator, wherein the remote monitoring terminal transmits the operation data to the monitoring center when the refrigerator is in an abnormal state, even if the operation data is suspended.

Images