JP2001084476A - Data monitor system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently transmit and display time series data to a requesting terminal. SOLUTION: A Web server device 1b is provided with a data file processing means 5 which updates data on the basis of measurement data from a measuring instrument 1d to store and manage data as a data file 10 where data is collected into a prescribed number of parts in a prescribed form, and the Web server device 1 collectively transmits data in a required part of the corresponding data file 10 in response to a transmission request of measurement data from a display terminal 1c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for efficiently monitoring data that changes with time as required.

[0002]

2. Description of the Related Art A general data monitoring system using the conventional World Wide Web technology has a configuration shown in FIG. In the figure, 1
01 is a measurement data processing means for storing data input from the measuring instrument in the database, 102 is all data management means for searching and transmitting data from the database in response to a data transmission request, 103 is a database, 101a is a Data server device. 104 is a data search transmitting / receiving means for searching data of the data server device and transmitting a search result to the data display means of the display terminal device;
Reference numeral 105 denotes a file transmission unit, and 101b denotes a Web server device having the element. 107 is a Web server device 1
Data receiving and displaying means for receiving and displaying data from 01b, integrated display means 108, and a display terminal device 101c having these elements.

The operation of a general data monitoring system having the above configuration will be described with reference to the flowchart of FIG. FIG.
The operation indicated by the thick circled number is performed. First at round 1,
The data measured periodically by the measuring device 101d is transmitted to the measurement data processing means 101 of the data server device 101a. In the circle 2, the measurement data processing unit 101 stores the received measurement data in the database 103. In order to obtain measurement data, in step S101 in FIG. 21, a display format 106 defining a display format from the integrated display unit 108 of the display terminal device 101c to the file transmission unit 105 of the Web server device 101b, and a data display unit 107
Request a transfer. The integrated display means 108 activates the data display means 107 and waits for a display request from the user. In the display terminal device 101c, when a display request is executed by an input from the user, a request is transmitted from the data display means 107 of the display terminal device 101c to the data search / transmission / reception means 104 of the Web server device 101b in a circle 5; Then, the data search transmission / reception means 104 is
Of all data management means 102 to search for data.
In circle 7, all data management means 102 is database 103
The search result is transmitted to the data search transmission / reception unit 104 in a circle 9 in step S103, and the result is searched in a circle 10 in step S103.
At 104, the data search / transmission unit 104 transmits data to the data reception / display unit 107 operating on the display terminal device 101c, and the data reception / display unit 107 displays the data.

When the measuring instrument 101d measures new data and sends it to the measurement data processing means 101, the measurement data processing means stores the data in the database 103,
The data search means 104 of the Web server apparatus 101b notifies the accumulation of new data, the data search means 104 notifies the data display means 107 of the display terminal apparatus 101c of the accumulation of new data, and the data display means 107 Requests acquisition of new data to 104. The data search means 104 acquires the latest data by the all data management means 102, transmits new data to the data display means 107, and the data display means 107 displays the latest data.

[0005]

The conventional data monitoring system has the above-described configuration. Each time a display request is made from a display terminal, a database search is performed to increase the load on the data server device. There was a problem that it took time. In addition, it is generally necessary to provide a unique protocol for transmitting and receiving display data. Further, when different databases exist, a plurality of data search means having a data transfer function must be prepared.

SUMMARY OF THE INVENTION It is an object of the present invention to efficiently manage monitoring data that changes with time and to effectively use the data.

[0007]

A data monitoring system according to the present invention stores and manages data in a Web server device as a data file in which data is updated based on measurement data from a measuring instrument and compiled into a predetermined number and format. In response to a request for transmission of measurement data from the display terminal, the Web server device transmits data of a necessary portion of the corresponding data file in a batch.

Further, the data file processing means collectively manages, as a data file, addresses of files in which the actual data exists as a reference address instead of collectively managing the actual data. In response to the sending request, the actual data of the reference address is collected and sent.

Further, the data file processing means manages the actual data by dividing it into sub-groups, and in response to a request for sending measurement data from the display terminal,
Sending by subgroup division unit.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a system configuration diagram of a data monitoring system according to the embodiment of the present invention. First, the configuration will be described. The data server device 1a retrieves and transmits data from the database 3 in response to a request from the Web server device, a measurement data processing unit that stores the data received from the measuring device 1d in the database 3, a database 3 that stores the data, and a request from the Web server device. All data management means 2 is provided. The Web server device 1b includes a data search unit 4 for searching a database, a data file processing unit that receives data from the data server device, manages the received data in a file, and transmits the data to the display terminal device 1c. 5 and a file transmission means 6 for transmitting a display format 7, data display means 8, and data file 10 in response to a request from the display terminal device. In the present embodiment, the data file processing means 5 is an important element. Display terminal device 1c
Is provided with a data display unit 8 that is executed after being downloaded as an object from a Web server device to receive and display data, and an integrated display unit 9 that executes a data display unit. The management of the data display means 8 is performed by the Web server device, and the execution is performed by downloading to the display terminal device.

The bold lines and circles in FIG. 1 indicate the operation direction and order between elements. The operation of the data monitoring system will be described with reference to FIG. First, the measurement data processing of the data server device will be described. The data input from the measuring device 1d to the data server device 1a at the circle 1 in FIG. 1 is stored in the database 3 by the measurement data processing means 1 as shown by the circle 2 in FIG. Until the data of the measuring device 1d is accumulated by a predetermined amount, all the data management means 2 operates as the measuring device 1d.
Continue receiving data from. When all the data management means 1 receives a predetermined amount of data of the measuring device 1d, it is ready for a data search request from the Web server device 1b, or is in a state of updating data by a subsequent input from the measuring device 1d. .

The main processing of the Web server will be described with reference to the operation flow shown in FIG. The display terminal device 1c transmits a data acquisition request to the Web server device 1b using the integrated display means 9. W in step S11
In the eb server device 1b, a data acquisition request is transmitted from the display data transmitting unit 6 to the data file processing unit 5. If the data requested by the display terminal device 1c is insufficient in the data file 10 managed by the data file processing means 5 in S12, the data file processing means 5 The requested data is requested to the data server device 1a.

The all data management means 2 of the data server 1a retrieves necessary data from the database 3 in response to the shortage request, and transmits the retrieved data to the Web server 1b. The data file processing means 5 of the Web server device receives the search result and converts the data into a text file according to the information at the time of the data search. FIG. 3 is a diagram showing the concept of the processing performed by the data file processing means 5,
On the other hand, FIG. 4 is a diagram showing a relationship between an individual data file group and an integrated data file as a specific example. In this way, the data file processing means 5 manages a predetermined number of latest data collectively as a part of the data file 10. When the necessary data is prepared, the data file processing means 5 collects the data into one data file 10 and transmits the data to the integrated display means 9 of the display terminal device 1c via the file transmission means 6. The data display means 8 obtains the data from the integrated display means 9, performs necessary processing, and displays the processed data. FIG. 5 is an example of a tabular output as a result output performed by the data display means 8, focusing on the monitoring station. FIG. 6 is an example of a tabular output of temperatures at a plurality of points over one hour, and FIG. 7 is an example of a graph output at a monitoring station. FIG. 8 shows an example of a display format in a table format, and FIG. 9 shows an example of a display format in a graph format.

When new data is received from the measuring device 1d, the measurement data processing means 1 stores the data in the database 3 as shown in FIG. 4, for example, and notifies the data file processing means 5 of the acquisition of new data. Upon receiving the trigger, the data file processing unit 5 acquires the latest data by the data search unit 4, generates the latest data file 10 as shown in FIG. The data file processing means 5 notifies the data display means 8 of the display terminal device 1d of the reception of the new data, and the data display means 8 obtains the latest data file 10 from the file transmission means 6, and according to the contents of the request, For example, new data shown in FIGS.

FIG. 10 is a diagram showing the individual data file shown in FIG. 4 and related information in association with each other.
The operation of the data file processing means 5 will be described with reference to FIG. First, the data management definition information 23 shown in FIG. 10 is read. The data management definition information 23 defines a period in which data is to be managed (management period), a period in which individual data files are combined into a combined data file (combined data file period), and an interval at which data is measured (measurement interval). I have. When the latest data is measured, the data file processing unit 5 stores the measurement time (latest measurement time) of the latest data in the current file in the management information table 22 based on the time recorded in the measurement data. Furthermore,
From the management period of the data and the latest measurement time, calculate the oldest time to save the data (oldest measurement time),
If there is individual data older than the oldest measurement time, the data is deleted from this file, and at the same time, the individual data files from the updated oldest measurement time to the latest measurement time are collected as a combined data file AD1 in FIG. This process is performed every time new data is measured.

According to the present embodiment, when a request for data acquisition is once again received from the display terminal device 1c for data once retrieved, the data file 10 managed by the data file processing means 5 of the Web server device 1b. Is transmitted, and the search load on the database 3 of the data server device 1a is reduced. Also, in order to transmit the data file 10 from the Web server device 1b to the display terminal device, a protocol used between the file transmission means 6 and the integrated display means 9, for example, HTTP can be used.
This has the effect of not having to implement a unique protocol. Further, the data file processing means 5 has an effect that all data can be processed using only the measurement time of the measurement data as a key.

In the processing shown in FIG.
Has a predetermined number of individual data, always performs an update process when the latest measurement data is received, and replaces the predetermined number of individual data. A case in which the update time is reduced to reduce the processing time will be described. FIG. 11 is a flowchart of the processing operation of the data monitoring system in which the update processing is reduced. The data file processing means 5b deletes an unnecessary part from the existing data file 10 and adds the newly received data to create a data file. In this embodiment, when there are many data files, it is not necessary to process all data files again, and the head of the combined data files is deleted,
Finally, new data is added, which has the effect of shortening the processing time.

In the data management definition information 23 shown in FIG. 10, according to the combined data file period (management period),
Create a combined data file. Since the value obtained by dividing the combined data file period by the measurement interval is the number of individual data files to be combined, at the time of the first request, all combined data files are composed of this number of individual data files. When new data is measured, the data file containing the oldest measurement data is deleted, a combined data file is created with a file other than this file, and a combined data file is created with only the latest measurement data. This process is repeated each time new data is measured. For example, if the value obtained by dividing the combined data file period by the measurement interval is 6, if this process is repeated six times, the oldest combined data file is deleted, and the combined data file containing the latest measurement data is not changed. , A new combined data file is created.

FIG. 12 is a conceptual diagram of a data file by another data monitoring system in which update processing is similarly reduced. The data file processing means 5c whose processing concept is shown in FIG. 12 compiles individual data files into several combined data files AD21 to AD23. And
When the new acquisition data I1 at the new time 10 is obtained, the data at the time 1 AD21 of the combined data file 1 is deleted to make a new combined data file 1 AD31, and a new combined data file 4 AD34 is created. 10 data I1 are entered. Display terminal device 1
A for the request to send updated measurement data from c
D31, AD22, AD23, AD34 may be sent, or the operation method is determined in advance,
Only the AD31 and the AD34 may be sent, and only the updated part may be replaced by the display terminal device 1c. Even in this case, the intermediate combined data files AD22, AD2
There is no need to perform the processing for No. 3, which has the effect of making the processing more efficient.

Embodiment 2 In the above embodiment, the case where the data file processing unit collects the individual data obtained from the database 3 into one data file 10 has been described. In the present embodiment, a case will be described in which such a summary is not performed, a range of individual data to be transmitted when requested is specified, and data is transmitted based on the range. FIG. 13 is a diagram illustrating the concept of the processing performed by the data file processing unit 51 according to the present embodiment. That is, the data file processing means 51 determines whether the individual data file I1
After creating 1 to I15, combine data file AD
When creating the AD 41 and the AD 42, instead of combining the individual data files, link names that refer to the individual data files are combined. For example, when the newly acquired data I15 is known, the reference link name thereof is set as Ln after a predetermined number from the data link L2 at time 2 as the combined data file AD42.
The data up to +1 are collected as one combined data file AD42. This also has the effect of reducing the load required to create a combined data file.

In the combined data file shown in FIG. 13, the reference link name may be described so as to be taken from a plurality of Web server devices, instead of being defined only for one Web server device 1b. FIG. 14 is a diagram illustrating an example in which another Web server device is specified as the reference link name. The individual data file name is applicable to other Web server devices. The data display means 8 of the display terminal device 1c requests an individual data file from the file transmission means 6 of each Web server device described in the integrated data file. This can reduce the load of copying a data file when an individual file in another Web server is required.

Next, a description will be given of a variation of data updating when individual data is collected in the data file 10. FIG. FIG.
FIG. 5 is a diagram for explaining a management method for storing individual data without updating individual data and without deleting specific individual data. The data file processing means 5 does not delete the data file when the individual data file shown in FIG. 15 includes the information (I22) that does not need to be updated. This way,
Permanently manage unchanged files.

The data may be updated or deleted with a time limit instead of updating / non-updating. FIG. 16 is a diagram for explaining a method of managing a term of an individual data file. The data file processing means 5 searches the individual data file shown in FIG. 16 and deletes the individual data file I31 when the expiration date of the individual file I31 has passed. The individual data file I32 within the expiration date is managed as it is. By giving the data file an expiration date in this way, even if the data file processing part has been stopped for a long time, the data file can be searched and unnecessary data files can be erased, and the memory can be used effectively. it can. Further, means for searching for and deleting unnecessary files may be provided in addition to the data file processing means 5.

A case will be described in which there are a plurality of data server devices 1a, each having a different database, and the Web server device 1b accesses these databases 3. FIG. 17 is a conceptual diagram of the configuration of a data monitoring system having such a plurality of data search means 4. In the figure, a plurality of data search means 4 are provided in a Web server device 1b, and data of a plurality of data server devices 1a are searched as shown by a bold line in FIG.

The data server 1a and the Web server may be integrated into one data server. FIG.
FIG. 8 is a configuration diagram in such a case.

As a method of converting the data performed by the data file processing means 51e into a file, an XML (eXtens
i. Markup Language) may be used. FIG. 19 shows an example of a data file described in XML.

[0027]

As described above, the provision of the data file means for updating and collectively storing the actual data reduces the load on the data server for managing the measured data, thereby reducing the processing time.

[Brief description of the drawings]

FIG. 1 is a diagram showing a system configuration according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an operation flow of the Web server device according to the first embodiment.

FIG. 3 is a diagram illustrating a concept of a process performed by a data file processing unit 5 according to the first embodiment.

FIG. 4 is a diagram showing an example of data in a database 3;

FIG. 5 is a diagram illustrating an example of tabular output displayed by the display terminal device.

FIG. 6 is a diagram illustrating an example of tabular output displayed by a display terminal device.

FIG. 7 is a diagram illustrating an example of a graph format output displayed by the display terminal device.

FIG. 8 is a diagram showing an example of a tabular format managed by a data file processing unit.

FIG. 9 is a diagram illustrating an example of a graph format managed by a data file processing unit.

FIG. 10 is a relationship diagram illustrating a process performed by the data file processing unit of FIG. 1;

FIG. 11 is a diagram showing an operation flow of another Web server device according to the first embodiment.

FIG. 12 is a diagram illustrating a concept of a process performed by a data file processing unit 5 of still another Web server device according to the first embodiment.

FIG. 13 is a diagram illustrating a concept of a process performed by a data file processing unit 51 of a Web server device according to the second embodiment.

FIG. 14 is a diagram illustrating a concept of a process performed by another data file processing unit 51b according to the second embodiment.

FIG. 15 is a diagram showing a concept of processing performed by still another data file processing unit 51c according to the second embodiment.

FIG. 16 is a diagram illustrating a concept of processing performed by still another data file processing unit 51d according to the second embodiment.

FIG. 17 is a diagram showing still another system configuration according to the second embodiment.

FIG. 18 is a diagram showing still another system configuration according to the second embodiment.

FIG. 19 is a diagram illustrating a filing method performed by still another data file processing unit 51e according to the second embodiment.

FIG. 20 is a configuration diagram of a conventional data monitoring system.

FIG. 21 is an operation flowchart of a conventional data monitoring system.

[Explanation of symbols]

1a Data server device, 1b Web server device, 1
c Display terminal (device), 5, 5b, 5c, 51, 51
b, 51c, 51d, 51e Data file processing means, 8 data display means, 10 data files, AD
1, AD21, AD22, AD23, AD31, AD3
4, AD41, AD42 Combined data file.

Claims (3)

[Claims] 1. A Web server device comprising: data file processing means for updating data based on measurement data from a measuring instrument and accumulating and managing the data as a data file compiled into a predetermined number and format; In response to a request to send measurement data,
A data monitoring system, wherein the server device collectively transmits data of a necessary portion of the corresponding data file. 2. The data file processing means collectively manages, as a data file, addresses of files in which actual data exists as a reference address, instead of managing the actual data collectively, and stores measured data from a display terminal. 2. The data monitoring system according to claim 1, wherein actual data of the reference address is collected and transmitted in response to a transmission request. 3. The data file processing means manages actual data by dividing it into sub-groups and, in response to a request for sending measurement data from a display terminal, sending the data in sub-group division units. 2. The data monitoring system according to claim 1, wherein: