JP5085302B2 - Data collection device - Google Patents

Description

  The present invention relates to a data collection device used for remote monitoring control and the like, and more particularly to a data collection device suitable for remote monitoring control of power equipment.

Data collection is a prerequisite for remote monitoring systems and remote control systems known as telemetering. Moreover, in recent years, the amount of data tends to increase further. For this reason, since it is necessary to process a large amount of data in a short time, a computer is used so that data can be measured at various cycles.
The data collected at this time is processed by the interface function for schedule creation and graph drawing. In this case, the data management at this time takes into account the man-machine interface separately from the data processing in the computer. It is common to use a year-round process with the same normal time as the standard time, that is, a process in which 24 hours is one day and 365 days are one year.

By the way, in recent years, the adoption of daylight saving time, which is known as daylight saving time, has been promoted as part of energy saving, and it is in the process of implementation.
Here, the daylight saving time is defined as a daylight saving time starting date which is the beginning of the summer day, and as shown in FIG. This is a time system in which, for example, 2 am on the standard time is set to 3 am on daylight saving time. In FIG. 7A, daylight saving time starts at 3:00 am when the standard time changes from 1:59 am to 2:00 am.

With daylight saving time, people spend more time in the day as they feel in the daytime, and that ’s why the nights get shorter, so they get the energy savings needed for lighting, so this is the daylight. This is why it is called saving time.
And when the summer season is over, when it is a certain date, this day is the daylight saving time end date, and the daylight saving time is changed from 1:59 am to 2:00 am as shown in FIG. When the standard time is 1:00 am, the clock is delayed by one hour to return to the standard time, and the daylight saving time is cancelled.

  By the way, when this daylight saving time is carried out, the day immediately after the daylight saving time switching ends at 23 hours, and the day immediately after the daylight saving time is canceled becomes 25 hours. Therefore, some countermeasures are necessary.Therefore, some proposals have been made as conventional techniques for a system in which the time recognized in the computer can be switched when switching between standard time and daylight saving time (for example, Patent Documents 1 to 3).

JP 2002-344885 A JP-A-9-2199939 JP 2006-200903 A

The above prior art does not give consideration to the difference in the number of data that occurs transiently with switching between standard time and daylight saving time, and there is a problem in that the recognition of collected data may be confused.
That is, when daylight saving time is implemented, as described above, in the system in which the collected data is managed as 24 hours a day according to the year-round time, the collected data for one day immediately after the daylight saving time is started, One hour's worth of data will be lost, and conversely, one hour's worth of data will be duplicated for the collected data for one day immediately after the end of daylight saving time.

That is, at the start of the daylight saving time, as shown in FIG. 8, the data N2 at 2 o'clock on the standard time N becomes the data S3 at 3 o'clock on the summer time S. In this case, the apparent time is 2 o'clock. At the end of the daylight saving time in FIG. 9, the data S1 at 1 o'clock on the daylight saving time S appears at 0 o'clock on the standard time N, and then further at 1 o'clock on the sub time N. Since the data N1 appears, the data at 1 o'clock appears to be duplicated twice. Therefore, for example, if the data is processed or displayed every hour as it is, the daylight saving time starts. Since there are only 23 collected data and 25 at the end of the daylight saving time, there is a possibility of confusion in the recognition of the collected data.
It is an object of the present invention to provide a data collection device that does not have a risk of confusion during daylight saving time switching.

An object of the present invention is a data collection apparatus that processes a plurality of data collected at regular intervals as data every 24 hours at a standard time, and stores the plurality of data at the start of daylight saving time and at the end of daylight saving time. A backup unit and, at the start of daylight saving time, read out the data immediately before the switching point from the backup unit and replenish it as one of the data for one day to newly add data for one day And at the end of daylight saving time, the data at the time of switching and the data immediately after the time of switching are read out from the backup means and processed as one piece of data. and means for the provided data so does not change the number of data of one day, even when there was switched to standard time and daylight saving In the collecting device, when displaying the data for one day, the data supplemented as the one data and the data processed as the one data are displayed differently from the other data. This is achieved by the provision of means .

Here, among the display modes different from the other data, the display mode for the data processed as the one data is either the data immediately before the switching time point or the data at the switching time point. The above object can be achieved even when only one of them is displayed and when there is a case where both the data immediately before the switching time point and the data at the switching time point are displayed side by side .

  According to the above means, there is no possibility that the number of pieces of data for one day will change. Therefore, even in a method in which the reception processing of periodic data is systemized based on the standard time, such as a remote control device, there is a particular problem. There is no fear, even if the time is changed due to the introduction of daylight saving time, the time management of data reception and recording will not go wrong, and there will be no excess or deficiency in the recording of measured values. Since there is no problem in graph drawing, there is no risk of business problems, and human judgment such as correction of records and readjustment of schedules is not required.

According to the present invention, data is not lost at the time of switching between standard time and daylight saving time, and the number of data for one day is not changed. Therefore, even when daylight saving time is introduced, control corresponding to daylight saving time can be performed. There is no risk of hindering the performance of teaching tasks such as schedule creation, and operations related to daylight saving time can be performed efficiently and accurately.
In addition, according to the present invention, since the data is stored after the daylight saving time is finished, the data at the stored time can be read and compared even after switching to the normal operation.

Hereinafter, a data collection device according to the present invention will be described in detail with reference to embodiments shown in the drawings.
FIG. 1 shows an embodiment in which the present invention is applied to a remote monitoring system and the local facility 1 is a monitoring target. Here, as an example, the local facility 1 is a power system facility. For this reason, various pieces of equipment information D are extracted from the local equipment 1 and transmitted to the monitoring device 3 via the information transfer device 2. For this reason, the information transfer device 2 is provided with a slave station 21 and a master station 22, and the facility information D is transmitted from the local facility 1 to the monitoring device 3 by relaying them.
At this time, the monitoring device 3 is provided with an information receiving unit 31, a data processing unit 32, an internal clock 33, a summer time setting unit 34, an MM (main memory) 35, and an SM (sub memory) 36. A terminal 4 is attached.

The facility information D transmitted from the local facility 1 to the monitoring device 3 is first input to the information receiving unit 31, received and processed here, and then supplied to the data processing unit 31.
Here, the data processing unit 31 includes a computer equipped with software necessary for demonstrating necessary capabilities, and thereby sequentially collects necessary data from the facility information D. At this time, a plurality of collected data are further collected. The data is also processed as one data per hour, that is, the data is edited into 24 data during 24 hours a day, which is the normal time. Standard time is entered.
The processed data is stored in a predetermined information storage area of the MM 35 while sequentially overwriting old data.

  On the other hand, the daylight saving time setting unit 34 is set in advance with time data necessary for the implementation of the daylight saving time, so that the daylight saving time setting unit 34 uses the standard time input from the internal clock 33 as the daylight saving time start time. When the standard time reaches the end time of the daylight saving time, a daylight saving time end signal, that is, a signal indicating the end of daylight saving time is input to the data processing unit 32. It is configured to be.

At this time, the daylight saving time setting unit 34 further generates a data storage signal, that is, a signal representing the data storage period during a certain period before and after the daylight saving time start time and end time, for example, one hour, and the data processing unit 32. It is also configured to input.
Therefore, the data processing unit 32 stores the processed data in the daylight saving information storage area of the SM 36 in accordance with the data storage signal, as shown in FIG.
Therefore, the SM 36 functions as backup means for storing the plurality of data at the start of summer time and at the end of summer time.

Next, a description by the data processing unit 32 for data processing at the time of the end of daylight saving time start summertime.
As already described, at the start of the daylight saving time, as shown in FIG. 8, the data N2 at 2 o'clock on the standard time N becomes the data S3 at 3 o'clock on the summer time S. In this case, in appearance, The 2 o'clock data will be lost.
Therefore, the data processing unit 32 starts from the SM 36 as the backup means at the start of daylight saving time, as shown in FIG. The data N1 at 1 am is read and supplemented as the data S2 on the summer time S.
Accordingly, at this time, the data processing unit 32 reads the data immediately before the switching point from the backup unit and replenishes it as one of the data for one day, thereby newly adding one day's worth of data. The data for one day newly generated at this time is stored in the information storage area of the MM 35.

Next, as already described, at the end of the daylight saving time, as shown in FIG. 9, the data S1 of 1 o'clock on the daylight saving time S appears at 0 o'clock on the standard time N, and then further on the sub time N Since the data N1 appears even at 1 o'clock, the data at 1 o'clock appears to be duplicated twice.
Therefore, the data processing unit 32, at the end of the daylight saving time, from the SM 36 as the backup means, as shown in FIG. Then, one data is generated from both the data S1 on the daylight saving time S and the data N1 at 1:00 am on the standard time N as described later, and the generated data is converted into the data N1 on the standard time N. As a result, the data for one day is newly obtained.

Therefore, at this time, at the end of the daylight saving time, the data processing unit 32 newly reads both the data at the switching time and the data immediately after the switching time from the backup unit and processes them as one data. It functions as a means for generating data for one day, and the data for one day newly generated at this time is also stored in the information storage area of the MM 35.
Thus, the data stored in the MM 35 is read by the display terminal 4 and displayed as an image.

Therefore, next, image display by the display terminal 4 will be described.
There are various ways of thinking about the display at this time, but here, the time on the computer that processes the data remains the standard time, and the man-machine interface is conscious of daylight saving time as much as possible for the data before and after the daylight saving time change. Data processing and display processing are performed without doing so.
Therefore, in this embodiment, first, the image display is set to a different mode at the start and end of the daylight saving time.

First, image display at the start of daylight saving time will be described with reference to FIG. Here, FIG. 5 illustrates a case where the displayed data is, for example, the local facility 1 is a power system facility, and the amount of power there is displayed by a bar graph.
As described with reference to FIG. 2, at the time of switching from the standard time N to the summer time S, the data N2 at the standard time N becomes the data S3 at the summer time S. If displayed as time data, the 2 o'clock data is skipped as shown.
Therefore, at this time, the data N1 at the standard time N backed up in the SM 36 is supplemented as 2 o'clock data, so that 24 data are displayed as shown in the figure.

In addition, in this embodiment, the display area of the bar graph of the data to be supplemented at this time (displayed by a broken line in the figure) is different from other data in a different display mode such as changing the display color or displaying an icon. Here, the bar graph at 2 o'clock is displayed in a color different from other bar graphs, such as red. In the figure, hatching (diagonal lines) is added to indicate that coloring is applied.
Therefore, in this case, there is no change in the point that it is displayed for 24 hours, but since there are bar graphs with different display modes, for example, display colors, an image at the start of daylight saving time is displayed. Can be easily recognized, and at this time, it can be easily recognized which bar graph is based on the supplemented data.

Next, image display at the end of summer time will be described with reference to FIG. In addition, about the data displayed also here, it is set as the case where electric energy is displayed by a bar graph similarly to the case of FIG.
At the end of daylight saving time, as described with reference to FIG. 3, the data is superimposed (becomes doubled), so the data S1 on daylight saving time S at 1 am, which is the end of daylight saving time, and the standard time immediately after the switching time Both of the data N1 on the N are collectively handled as one data and processed as the data N1 on the standard time N. In this case, as an embodiment of the present invention, FIG. There are two display methods of 6 (b).

Therefore, first, the case of FIG. 6 (a) will be described. In this case, only one of the data immediately before the switching time point, that is, the data S1, and the data at the switching time point, that is, the data N1 is displayed. In this case, the selection of the data S1 and the data N1 can be arbitrarily set.
In this case as well, the display area of the bar graph of the data to be replenished at this time (displayed by a broken line in the figure) is different from other data, such as changing the display color or displaying an icon. Therefore, the bar graph at 1 o'clock is displayed in a different color from other bar graphs, such as red, for example. Shown to be colored.

Next, the case of FIG. 6B will be described. This is a display in which both data N2 at the time of switching of data S1 immediately before the switching time is arranged, that is, two narrow bar graphs are arranged. It is intended to be displayed.
In this case as well, the bar graph display area (shown as a broken line in the figure) is the same as other data in that the display color is changed or the icon is displayed. The bar graph is also displayed in a different color from other bar graphs such as red.

In addition, in this case, two bar graphs arranged side by side may be displayed in different colors on the left and right. That is, for the 1 o'clock bar graph of FIG. 6B, the left bar graph is displayed in green, for example, and the right bar graph is displayed in red, for example.
Therefore, in this case as well, there is no change in the point that it is displayed for 24 hours, and at this time there is a bar graph with a different display mode, for example, display color, so this time the image at the end of daylight saving time is displayed. It can be easily recognized, and at this time, it can be easily recognized which bar graph is due to the dull data.

As described above, according to the above embodiment, since there is no possibility that the number of data for one day will change, data processing and display processing are performed so as to minimize the daylight saving time of data before and after the daylight saving time switching. Can be done.
Therefore, according to this embodiment, even in a method in which periodic data reception processing is systematized based on the standard time, such as a remote control device, there is no particular problem, and the time is changed by the introduction of daylight saving time. Even if there is a problem, the time management of the data reception record does not go wrong, and there is no excess or deficiency in the recording of the measured value. There is no fear, and there is no need for human judgment such as correction of records or readjustment of schedules.

It is a block diagram which shows one Embodiment of the data collection device by this invention. It is a timing diagram explaining the signal processing at the time of daylight saving time start in one embodiment of the present invention. It is a timing diagram for demonstrating the signal processing at the time of the end of the summer time in one Embodiment of this invention. It is explanatory drawing of the backup process performed at the time of the end of summer time in one Embodiment of this invention. It is explanatory drawing which shows an example of the display process in one Embodiment of this invention. It is explanatory drawing which shows another example of the display process in one Embodiment of this invention. It is explanatory drawing of summer time. It is a timing diagram for demonstrating the signal condition at the time of a summer time start. It is a timing diagram for demonstrating the signal condition at the time of the end of summer time.

Explanation of symbols

1: Local equipment 2: Information transfer device 3: Monitoring device 4: Terminal for display 21: Slave station 22: Master station 31: Information receiving unit 32: Data processing unit 33: Internal clock 34: Summer time setting unit

Claims (2)

A data collection device that processes a plurality of data collected at regular intervals as data every 24 hours at standard time ,
Backup means for storing the plurality of data at the start of daylight saving time and at the end of daylight saving time;
Means for reading out data immediately before the switching time from the backup means at the start of daylight saving time and replenishing the data as one of the data for one day, thereby obtaining data for one day;
At the end of the daylight saving time, means for reading out both the data at the switching time and the data immediately after the switching time from the backup means and processing it as one data, thereby making it a new day's worth of data; Provided,
In the data collection device in which the number of data for one day does not change even when the standard time and summer time are switched ,
When displaying the data for one day,
The data collection device is characterized in that the data supplemented as the one data and the data processed as the one data are provided with means for displaying differently from the other data . The data collection device according to claim 1,
Among the display modes different from the other data, the display mode for the data processed as the one data is:
When only one of the data immediately before the switching time and the data at the switching time is displayed, and when the state where both the data immediately before the switching time and the data at the switching time are displayed is displayed. data collecting device, characterized in that there are and.

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