JP2006349348A - Data recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To acquire measurement data collected on a desired cycle without collecting them anew. <P>SOLUTION: This data recorder is equipped with: a control part 3 for collecting measurement data Dx to Dz with a prescribed cycle; and a storage part 4 for storing therein the plurality of groups of measurement data Dx to Dz collected by the control part 3. When a cycle of N-times (N is an integer ≥2) a prescribed cycle is specified in extracting prescribed data from the measurement data Dx to Dz stored in the storage part 4, the control part 3 extracts measurement data Dx to Dz collected with the cycle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a data recording apparatus that includes a storage unit that stores measurement data.

As this type of data recording apparatus, a measurement data processing apparatus disclosed in Japanese Patent No. 3462642 is known. In this measurement data processing device, the information processing device samples the measurement data from the measurement system at a constant period (6 seconds) to generate sampling data. In this case, in this measurement data processing apparatus, the information processing apparatus calculates an average value for each period of 1 minute, 1 hour, 1 day, and 1 month based on the sampling data. Moreover, in this measurement data processing apparatus, the average value for each period calculated by the information processing apparatus is graphed and displayed on the display unit.
Japanese Patent No. 3462642 (page 4-5, FIG. 5)

  However, the above data processing apparatus has the following problems. That is, in this data processing device, the measurement data is sampled at a constant period to generate sampling data, and the average value is calculated based on the sampling data for display on the display unit. For this reason, in this data processing apparatus, measurement data is not sampled in a period other than the above-described fixed period. Therefore, when data sampled at another cycle is required for this data processing device, the setting of the sampling cycle must be changed and measurement data from the measurement system must be measured again. The change and measurement are complicated, and there is a problem that the continuity of measurement data is impaired by the setting change.

  The present invention has been made in view of such a problem, and a main object of the present invention is to provide a data recording apparatus that can acquire measurement data collected at a desired cycle without being collected again. Another object is to provide a data recording apparatus capable of maintaining the continuity of measurement data.

  In order to achieve the above object, a data recording apparatus according to claim 1, wherein a data collection unit that collects measurement data at a predetermined period, a storage unit that stores a plurality of measurement data collected by the data collection unit, and A data extraction unit that extracts predetermined data from the measurement data stored in the storage unit, and the data extraction unit has a period N times the predetermined period (N is an integer of 2 or more). When specified, the measurement data collected in the period is extracted.

  3. The data recording apparatus according to claim 2, wherein the data collection unit collects a plurality of types of measurement data at the predetermined cycle, and the data extraction unit can designate the N-times cycle for each type. Then, the measurement data for each type collected in each designated cycle is extracted. In this specification, “a plurality of types of measurement data” refers to a plurality of measurement objects (for example, production lines and devices) and measurement items (for example, temperature, voltage, current, power, etc.) that are different from each other. Refers to measurement data. Therefore, even if the measurement data has the same type of measurement item, if the measurement target is different, it corresponds to “plural types of measurement data” in this specification.

  According to the data recording device of claim 1, when a cycle N times the predetermined cycle in which the measurement data is collected is designated, the data extraction unit stores the measurement data collected in that cycle in the storage unit. By extracting from a plurality of measurement data, the measurement data collected in that cycle can be acquired. Therefore, it is possible to reliably and easily acquire measurement data collected at a desired cycle without performing measurement data collection again. Moreover, even if it becomes necessary to change the cycle for extracting measurement data, it is possible to extract at a changed cycle using a plurality of measurement data stored in the storage unit without collecting desired measurement data again Therefore, collection of measurement data can be continued. Therefore, the continuity of the measurement data stored in the storage unit can be maintained.

  In addition, according to the data recording apparatus of the second aspect, the cycle of N times the predetermined cycle in which the measurement data is collected is designated for each type, and each measurement data for each type collected in each designated cycle By extracting, measurement data of a desired cycle suitable for the type can be reliably and easily extracted.

  Hereinafter, the best mode of a data recording apparatus according to the present invention will be described with reference to the accompanying drawings.

  First, the configuration of the data recording apparatus 1 will be described.

  As shown in FIG. 1, the data recording apparatus 1 includes a control unit 3, a storage unit 4, an operation unit 5, and a display unit 6, and a plurality of (for example, three) measurement modules 2x to 2z are connected. It is configured to be possible. In this data recording device 1, for example, by continuously performing measurement such as room temperature of the factory X as shown in FIG. Used to monitor

  The measurement modules 2x to 2z measure the temperature at a predetermined position in the factory X at a predetermined cycle, and measure data Dx to Dz (hereinafter referred to as “measurement data when not distinguished from each other) by adding a measurement time t as a time stamp to the measured temperature. D ”) is output to the control unit 3. In addition, the measurement modules 2x to 2z are configured to be able to set a cycle for outputting the measurement data Dx to Dz (predetermined cycle in the present invention). In this example, the measurement data D is output so as to output the measurement data D every minute. Output cycle is set. As shown in FIGS. 1 and 2, the measurement module 2x measures the room temperature at a predetermined position in the factory X and outputs measurement data Dx indicating the room temperature. The measurement module 2y measures the internal temperature of the device Y1 arranged at a predetermined position on the production line Y, and outputs measurement data Dy indicating the internal temperature. The measurement module 2z measures the internal temperature of the device Z1 arranged at a predetermined position on the production line Z, and outputs measurement data Dz indicating the internal temperature.

  The control unit 3 functions as a data collection unit in the present invention, and collects a plurality of types of measurement data Dx to Dz output from the measurement modules 2x to 2z every minute. In this case, the control unit 3 generates the collected data Dc based on the plural types of measurement data Dx to Dz and stores the collected data Dc in the storage unit 4. In this case, as shown in FIG. 3, the collected data Dc includes measurement times t (t1 to t9...) Assigned as time stamps and data Dx (Dx1 to Dx9) associated with the measurement times t. ..., Dy (Dy1-Dy9 ...), Dz (Dz1-Dz9 ...). In addition, the control unit 3 is configured to be able to arbitrarily set a cycle for outputting the measurement data Dx to Dz to the measurement modules 2x to 2z, that is, a cycle for the control unit 3 to collect the measurement data Dx to Dz.

  On the other hand, the control unit 3 also functions as a data extraction unit in the present invention, and when a cycle N times the output cycle of the measurement data D (N is an integer of 2 or more) is designated via the operation unit 5, The measurement data D collected in the cycle is extracted from the collected data Dc stored in the storage unit 4. In this case, the control unit 3 generates the inspection data Di1 related to the production line Y and the inspection data Di2 related to the production line Z in association with the measurement time t by grouping the extracted data as shown in FIG. And output to the storage unit 4. In addition, the control unit 3 is configured to be able to arbitrarily specify an N-fold cycle for extracting the measurement data D when generating the inspection data Di1, Di2 (hereinafter also referred to as “inspection data Di” when not distinguished). Has been. The control unit 3 is configured to be able to designate this N-times period for each type of measurement data D, and to be able to designate a plurality of N-times periods for one type of measurement data D. Has been. Further, the control unit 3 causes the display unit 6 to display the generated inspection data Di1 and Di2 together with the measurement time t according to the operation content operated by the operation unit 5.

  The storage unit 4 stores collected data Dc including a plurality of measurement data Dx, Dy, and Dz, and inspection data Di1 and Di2. The operation unit 5 outputs an instruction signal corresponding to the operation content operated by the operator to the control unit 3. The display unit 6 displays the inspection data Di1 and Di2 according to the control by the control unit 3.

  Next, the operation of the data recording apparatus 1 will be described with reference to the drawings.

  When monitoring under what temperature conditions the product is manufactured in the production lines Y and Z shown in FIG. 2, first, the operator operates the operation unit 5 to measure data in the measurement modules 2x to 2z. Set the output period (every minute) of Dx to Dz. Therefore, the measurement modules 2x to 2z output the measurement data Dx to Dz to the control unit 3 every minute. In this state, the control unit 3 generates the collected data Dc based on the measurement data Dx to Dz output every minute from the measurement modules 2x to 2z and stores the collected data Dc in the storage unit 4. As a result, as shown in FIG. 3, the storage unit 4 outputs the measurement data Dx1, Dx2,... Indicating the room temperature of the factory X output every minute from the measurement module 2x, and every minute from the measurement module 2y. The measurement data Dy1, Dy2,... Indicating the internal temperature of the device Y1 and the measurement data Dz1, Dz2,... Indicating the internal temperature of the device Z1 output from the measurement module 2z every minute are measured time t (t1 to t1). Collected data Dc associated with t9... is sequentially accumulated and stored.

  In this case, for example, in the production line Y, the product passes through the device Y1 every 2 minutes, and in the production line Z, the product passes through the device Z1 every 3 minutes. Therefore, when the operation unit 5 is operated by the operator, for example, for the production line Y, extraction of the measurement data Dy collected every 2 minutes (twice the predetermined period in the present invention) is designated, and the production line Z Suppose that extraction of measurement data Dz collected every 3 minutes (three times the predetermined period in the present invention) is designated. At this time, the control unit 3 generates inspection data Di1 and Di2 indicating the correspondence between the room temperature of the factory X and the internal temperatures of the devices Y1 and Z1 based on the collected data Dc stored in the storage unit 4. .

  At this time, the controller 3 collects the measurement data Dx, Dy every two minutes from the measurement data Dx, Dy indicating the room temperature of the factory X and the internal temperature of the device Y1, that is, a period (1 minute) The inspection data Di1 relating to the production line Y is generated by extracting and grouping the measurement data Dx and Dy collected at a period twice as long as. In this case, as shown in FIG. 3, the inspection data Di1 of the production line Y includes the measurement time t (t2, t4, t6...) And the room temperature every two minutes of the factory X corresponding to each measurement time t. Measurement data Dx2, Dx4, Dx6,... And measurement data Dy2, Dy4, Dy6,... Indicating the internal temperature every two minutes of the device Y1 corresponding to each measurement time t. Therefore, the operator displays the contents of the inspection data Di1 of the production line Y on the display unit 6 so that under what temperature conditions each product is produced in the production line Y at each measurement time t. Can be specified.

  Further, the control unit 3 extracts the measurement data Dx, Dz every 3 minutes from the measurement data Dx, Dz indicating the room temperature of the factory X and the internal temperature of the device Z1, and groups them, thereby relating to the production line Z. Inspection data Di2 is also generated. In this case, as shown in FIG. 3, the inspection data Di2 of the production line Z includes the measurement time t (t3, t6, t9...) And the room temperature every 3 minutes of the factory X corresponding to each measurement time t. Measurement data Dx3, Dx6, Dx9,... And measurement data Dz3, Dz6, Dz9,... Indicating the internal temperature every 3 minutes of the device Z1 corresponding to each measurement time t. Therefore, the operator displays the contents of the inspection data Di2 of the production line Z on the display unit 6 so that under what temperature conditions each product is produced in the production line Z at each measurement time t. Can be specified.

  Thus, in this data recording device 1, when a cycle N times the output cycle of the measurement data D is designated, the control unit 3 stores the measurement data D collected in that cycle in the storage unit 4. The collected data Dc is extracted and grouped. For this reason, according to this data recording device 1, it is possible to acquire measurement data D collected at a cycle that is an integer multiple of the cycle of the measurement data D that constitutes the collection data Dc. Therefore, it is possible to reliably and easily acquire the measurement data D collected at a desired cycle without collecting the measurement data D again.

  Further, according to the data recording apparatus 1, even if it becomes necessary to change the type or cycle of the measurement data D constituting the inspection data Di1, Di2, it is possible to store the measurement data D without collecting it again. Since the collected data Dc stored in the unit 4 can be used to generate the inspection data Di1 and Di2, measurement by the measurement modules 2x to 2z can be continued. Therefore, the continuity of the collected data Dc can be maintained. Furthermore, since the measurement time t is associated with each measurement data D constituting the collected data Dc as a time stamp, the operator can extract the measurement data D measured in the past by extracting based on the measurement time t. Inspection data for a desired period can be generated reliably and easily.

  Further, according to the data recording apparatus 1, a cycle N times the output cycle of the measurement data D is designated for each type, and each measurement data D collected for each type is extracted in each designated cycle. By grouping them, it is possible to reliably and easily extract measurement data D having a desired cycle suitable for the type.

  In addition, this invention is not limited to said structure. In this example, the configuration in which the measurement data Dx to Dz are collected using the three measurement modules 2x to 2z has been described. However, the configuration in which the measurement data is collected using one or any plurality of measurement modules is adopted. Can do. In this example, the output period of the measurement data D is set to 1 minute, but it can be set to an arbitrary period such as 0.1 second or 1 second shorter than that. In this case, in order to increase the degree of freedom of cycle selection when extracting the measurement data D, it is preferable that the output cycle of the measurement data D is shorter than the specified cycle. Moreover, the kind and period of the measurement data D which comprise the test | inspection data Di can be set arbitrarily. For example, as shown in FIG. 4, inspection data Di3 composed of measurement data Dx2, Dx4,... Extracted every 2 minutes and measurement data Dy5, Dy10,. . In this case, the inspection data Di3 corresponds to the measurement time t (t2, t4, t5, t6, t8...) And each measurement time t (t2, t4, t6...) As shown in FIG. Measurement data Dx2, Dx4, Dx6... Showing the room temperature every 2 minutes of the factory X to be measured, and measurement data showing the internal temperature every 5 minutes of the equipment Y1 corresponding to each measurement time t (t5, t10...) It is composed of Dy5, Dy10,. Furthermore, it is naturally possible to generate the inspection data Di by extracting only one of the measurement data Dx to Dz at a cycle N times the output cycle of the measurement data D.

  Moreover, although the structure which implement | achieves the function of the data collection part and data extraction part in this invention by one control part 3 was demonstrated, the structure which made the data collection part and the data extraction part independent can also be employ | adopted. Furthermore, although the configuration in which the measurement modules 2x to 2z provided outside are connected to the data recording device 1 has been described above, a configuration in which the measurement modules 2x to 2z are part of the data recording device 1 may be employed. In this example, the measurement modules 2x to 2z that measure temperature are described as examples. However, the measurement items measured by the measurement modules 2x to 2z include various parameters such as voltage, current, and power.

1 is a block diagram showing a configuration of a data recording device 1. FIG. It is an arrangement figure showing an example of arrangement of measurement modules 2x-2z. It is explanatory drawing which shows the structure of the collection data Dc and test | inspection data Di1, Di2. It is explanatory drawing which shows the structure of the collection data Dc and test | inspection data Di3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Data recording device 2x-2z Measurement module 3 Control part 4 Memory | storage part 5 Operation part 6 Display part Di1-Di3 Inspection data Dx-Dz Measurement data

Claims (2)

A data collection unit that collects measurement data at a predetermined period, a storage unit that stores the plurality of measurement data collected by the data collection unit, and a predetermined one of the measurement data stored in the storage unit A data extraction unit for extracting data;
The data extractor is a data recording device that extracts the measurement data collected in the cycle when a cycle N times the predetermined cycle (N is an integer of 2 or more) is designated. The data collection unit collects a plurality of types of measurement data at the predetermined period,
The said data extraction part is comprised so that the said N times period can be designated for every said kind, and each said measurement data for every said kind collected at each said designated period is extracted. Data recording device.

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