TWI557558B - Logging system, loggiing device and data logging method - Google Patents

Description

Login system, login device, and data login method

The present invention relates to a logging system, a logging device, and a data logging method.

The login system collects control data (data) from the control device using the login device. The collected control data is called login data, and the login data is attached to a time stamp and stored in a file. In the case where there are a plurality of control devices, the interval at which the registration device collects data from each control device can be individually designated for each control device. Then, the registration device collects data from each control device at predetermined intervals, and outputs the collected registration data to the file (see, for example, Patent Document 1).

At this time, in order to collectively register the clock of the entire system, the time stamp attached to the registration data is based on the common timer provided in the registration device. In order to correctly grasp the timing at which the registration data is collected from each control device, the common timer corrects the clock to be synchronized with the standard time of the external system. In addition, since the clock element of the login device is different from the clock component of the external system, the clock of the common timer is repaired. It must be implemented regularly to prevent deviations in time.

By performing such processing, the data collected from the control device is collected, and the time stamp is compared to display the production information for each time series.

[Previous Technical Literature]

(Patent Literature)

(Patent Document 1) Japanese Patent Laid-Open Publication No. 2012-159942

(Patent Document 2) WO 01/020456

However, when the common timer asks the external system to correct the clock, the value of the common timer is faster than the standard time of the external system, and the time of the clock of the common timer is adjusted. When the time of the clock of the common timer is turned back, there may be a case where the time stamp attached to the registration data is earlier than the issued time stamp or the same time as the issued time stamp.

In order to display the progress of each control device, it is necessary to rearrange the registration data based on the time stamp. However, in the case where the correction of the clock of the common timer is performed for the time synchronization, since the time stamp of the registration data collected by each control device is not guaranteed in the order of time series, the registration data cannot be rearranged. In order to follow the sequence of time series.

In addition, at the time of the rearrangement of the login data, by designation For the interval of the reference, the data of each device can be horizontally arranged according to the time stamp of each interval. However, if the period of collecting data from the plurality of control devices as the target is not the same, many time stamps in which some of the login data do not exist will occur, and the output data will become "NULL" or "no data". News. Therefore, when the aggregated collected data is visualized by using a trend graph or the like, there is a case where the registered data is not displayed in the portion where there is no data.

In addition, in terms of means for assuring the time series data of the moving, there is a means for attaching a counter value to the time stamp each time the time is attached to the action trace information. It has been proposed (see, for example, Patent Document 2). However, in this case, if it is desired to collectively display only the data of any of the plurality of control devices, it is necessary to investigate the information of all the control devices in order to know the order of the counter values. Therefore, the larger the size of the control device, the more labor and cost.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a registration system that can easily and surely re-arrange data of a target device into a chronological order in a registration system that collects data from a target device by using a registration device. , login device and data login method.

In order to achieve the above object, the registration system of the present invention includes a plurality of target devices as data collection targets, and a registration device that collects and records data in the target device from the plurality of target devices. The aforementioned login device The method includes: correcting the time to a first clock synchronized with an external standard time at a predetermined timing; and correcting the time to be synchronized with the time of the first clock when the registration device is activated, not in the registration device a second clock for correcting the time; a data storage unit that stores the data acquired from the plurality of target devices for each of the target devices; and a plurality of target devices at a predetermined collection time interval of each target device Acquiring the data, and adding the time of the first clock and the time of the second clock when the data is acquired from the target device to each of the data, and storing the data in the data storage unit of the data storage unit; The data of the plurality of target devices stored in the data storage unit is a control data integration arrangement unit that rearranges and combines the time series of the data from the target device; and a combined data storage unit that stores the combined data. And the aforementioned control data integration arrangement is in the aforementioned data memory unit Storage of the data in the appended moment the second clock as a reference so that the data of the plurality of target devices rearranged and combined in the time sequence.

According to the present invention, it is possible to easily and surely rearrange the data of the target device into a chronological order in the login system that collects data from the target device by the login device.

10‧‧‧Control device

11‧‧‧CPU

12‧‧‧Control and Implementation Department

13‧‧‧Control program

14‧‧‧Control data

15‧‧‧Control data storage

16‧‧‧Control Data Transfer Department

17‧‧‧Communication Department

20‧‧‧ Busbar

30‧‧‧Servo PC

31‧‧‧Time Delivery Department

32‧‧‧Communication Department

40‧‧‧PC

41‧‧‧ Login Settings Tool

42‧‧‧Communication Department

50‧‧‧Memory Media

60‧‧‧ cable

100‧‧‧ Login device

101‧‧‧CPU

102‧‧‧Data Acquisition Department

103‧‧‧Internal memory

104‧‧‧Data Memory Department

105‧‧‧Shared memory

106‧‧‧Control data

107‧‧‧Combined with the Archives Production Department

108‧‧‧Control data integration and alignment

109‧‧‧Control Data Interpolation Department

110‧‧‧ Absolute time timer

111‧‧‧Common timer

112‧‧‧Time synchronization request department

113‧‧‧ ring buffer area

114‧‧‧ Login parameters

115‧‧‧Communication Department

200‧‧‧ computer equipment

201‧‧‧ display device

202‧‧‧ Input device

203‧‧‧CPU

204‧‧‧Non-volatile memory

205‧‧‧ volatile memory

206‧‧‧ Display memory

207‧‧‧External memory interface

208‧‧‧Communication interface

209‧‧‧Internal busbar

Fig. 1 is a view showing the configuration of a registration system according to an embodiment of the present invention.

Fig. 2 is a flowchart for explaining processing of writing clock data to the common timer of the registration device according to the embodiment of the present invention.

Fig. 3 is a flowchart showing the processing of the data acquisition processing procedure of the data acquisition unit in the registration device according to the embodiment of the present invention.

Fig. 4 is a view showing an example of a configuration in which control data is collected from a plurality of control devices in the registration system according to the embodiment of the present invention.

Fig. 5 is a flow chart for explaining a process in which the registration device rearranges and combines control data in the login system according to the embodiment of the present invention.

Fig. 6 (a) to (c) are diagrams showing control data in the registration device according to the embodiment of the present invention.

Fig. 7 is a view showing control data in a case where the lack of data is obtained by the same value interpolation method in the registration device according to the embodiment of the present invention.

Fig. 8 is a view showing a file outputted when a lack of data is obtained by the same value interpolation method in the registration device according to the embodiment of the present invention.

Fig. 9 is a view showing control data in a case where a lack of data is obtained by linear interpolation in the registration device according to the embodiment of the present invention.

Fig. 10 is a view showing data which is output to a file of a memory medium when the lack of data is obtained by linear interpolation in the registration device according to the embodiment of the present invention.

Fig. 11 is a block diagram showing an example of a configuration of a computer device that realizes functions of a control device, a servo personal computer, a personal computer, and a registration device.

Hereinafter, the registration system of the present invention will be described in detail based on the drawings. Embodiments of the system, the registration device, and the data registration method. However, the present invention is not limited to the following description, and modifications may be made without departing from the spirit and scope of the invention.

Embodiment 1.

Fig. 1 is a view showing the configuration of a registration system according to the first embodiment of the present invention. The registration system of the present embodiment as shown in Fig. 1 includes a control device 10 that performs calculations necessary for performing predetermined control on a controlled device (not shown), and a registration device 100 that registers acquired control data. The memory medium 50 installed in the registration device 100; the personal computer 40 for setting the registration parameter; and the server personal computer 30 required for time synchronization. The control device 10 and the registration device 100 are connected via a bus 20 . The personal computer 40 and the servo personal computer 30 are connected to the registration device 100 via a cable 60 such as an Ethernet (Ethernet). Further, the servo personal computer 30 is also connected to the control device 10 via the cable 60. The arrow shown in Fig. 1 indicates the movement of data of the control device (logging object).

The control device 10 includes a control execution unit 12, a control data storage unit 15, a control data transfer unit 16, a communication unit 17, and a CPU 11 that operates the above-described respective units. The control execution unit 12 includes a control program 13 necessary for the control device 10 to control the controlled device, and operates the control program 13 to operate the control device 10 to control the controlled device. Control data storage unit 15, The control data 14 generated when the control device 10 controls the controlled device is stored.

The control data transfer unit 16 transfers the value of the control data 14 of the control data storage unit 15 to the shared memory 105 included in the registration device 100 at a predetermined cycle or control cycle of the control program, and notifies the registration device 100 of the registration device 100. The control data 14 has been stored to the shared memory 105. That is, the registration device 100 acquires the control data 14 at a predetermined interval or at an operation interval of the control program. The control data transfer unit 16 transfers the control data 14 in the time series sequence generated by the control data 14. The communication unit 17 communicates with an external device.

The personal computer 40 has a registration setting tool 41 implemented by software and a communication unit 42. The registration setting tool 41 has a function of creating setting data for registration and setting the setting data to the registration device 100. The setting data system and the number and type of data collected by the registration device 100 from the control device 10, the cycle of collecting data, the registration execution condition, the selection of setting of data combination, the data interpolation method, and the timing synchronization timing (timing) are set. Content related data. Therefore, the personal computer 40 functions as a setting data creation and setting device for registration. The communication unit 42 communicates with an external device.

The detailed configuration of the computer device constituting the personal computer 40 will be described later. The personal computer 40 can also be constructed using a dedicated device having the above functions. Further, since the personal computer 40 is required to set the created setting data to the registration device 100, it is possible to disconnect the connection between the personal computer 40 and the registration device 100 during the registration of the registration device 100.

The servo personal computer 30 includes a delivery unit 31 that operates as a SNTP (Simple Network Time Protocol) server, and delivers the time of the servo personal computer 30 to the SNTP client (client); and a communication unit 32. The time delivery unit 31 delivers time information when receiving a time synchronization request from the SNTP client. The SNTP client here is the login device 100 and the control device 10. The communication unit 32 communicates with an external device. The detailed configuration of the computer device constituting the servo personal computer 30 will be described later. The servo personal computer 30 can also be constructed using a dedicated device having an SNTP function.

The registration device 100 includes a CPU 101, a data acquisition unit 102, an internal memory 103, a data storage unit 104, a shared memory 105, a combined file creation unit 107, an absolute time counter 110, a common timer 111, and a time synchronization request unit. 112. The communication unit 115 is configured.

The common timer 111 is a clock provided to unify the clocks of all the registered systems. The common timer 111 is synchronized with the timing of the servo personal computer 30. The time stamp attached to the control data is based on the value of the common timer 111.

The absolute time counter 110 corrects the clock once the power of the registration device 100 is started, and the time is synchronized with the common timer 111. Then, the absolute time counter 110 corrects the clock to be the same as that of the servo personal computer 30 when the common timer 111 is synchronized, that is, when the common timer 111 synchronizes the time with the servo personal computer 30, it is not affected by the synchronization. Update the values at regular intervals. In other words, the absolute time counter 110 is when the power of the registration device 100 is just started. The clock of the operation of updating the absolute time of the correction is continued until the power of the registration device 100 is turned off in synchronization with the common timer 111. The absolute time counter 110 is provided with, for example, the same clock element as the common timer 111. The absolute time data attached to the control data is based on the value of the absolute time timer 110.

The time synchronization request unit 112 issues a time synchronization request and transmits it to the servo personal computer 30 to acquire time information from the servo personal computer 30. Then, the time synchronization requesting unit 112 sets and reflects the acquired time information to the common timer 111 to update the time of the common timer 111. In other words, the time synchronization requesting unit 112 requests the time synchronization of the servo personal computer 30 in accordance with the time synchronization period of the setting data set from the personal computer 40. Then, the time synchronization request unit 112 writes the time information acquired after the time synchronization request is made to the common timer 111.

The shared memory 105 has an area in which the control data 14 transferred from the control device 10 is temporarily stored as the control data 106. The shared memory 105 has an area in which control data 14 (control data 106) storing one cycle portion is provided corresponding to each control device 10. The shared memory 105 is a device that can be accessed by both the control device 10 and the registration device 100. Further, the shared memory 105 can divide the memory area in accordance with the number of control devices 10 (registered objects) to store the control data 106.

The internal memory 103 is a control data storage unit that stores the control data 106 transferred from the control device 10. The internal memory 103 can employ, for example, a volatile memory. Internal memory 103 is a data acquisition unit 102 and the data storage unit 104 and the combined file creation unit 107 can all be accessed. The internal memory 103 has, for example, a ring buffer region 113 for storing a plurality of control data transferred from the control device 10 for a predetermined period of time, and a registration parameter 114.

The ring buffer area 113 is a RAM memory or the like for storing the control data 106 with sufficient memory capacity. The ring buffer region 113 is conceptually formed into a memory configured in a ring shape, and is managed by a write pointer and a read index. In this case, when the data acquisition unit 102 writes the control data 106 to the ring buffer area 113, the write index advances. Then, when the data storage unit 104 reads the control data 106 written in the ring buffer area 113, the reading index advances. The control data 106 can be read in before the read index reaches the position where the index is written.

The ring buffer area 113 memorizes the time stamp sequence of the control data 106 from the control device 10 in addition to the above-described control data 106, and memorizes the time stamp issued from the common timer 111 and the absolute time from the absolute time timer 110. Time data. For example, the time stamp from the common timer 111 is recorded as a time stamp (1), a time stamp (2), ..., a time stamp (m), and a time stamp (n). The number in () indicates the sequential number of each time stamp stored in the ring buffer area 113. Here, the time stamp (1) is the earliest time in the time series order, and the time stamp (n) is the latest time in the time series order.

Similarly, the absolute time data sent from the absolute time timer 110 is recorded as absolute time data (1), absolute time data. (2), ..., absolute time data (m), absolute time data (n). The number in () indicates the sequence number in which the absolute time data is memorized to the ring buffer area 113. Here, the absolute time data (1) is the earliest time in the time series order, and the absolute time data (n) is the latest time in the time series order. Further, in the ring buffer area 113, as shown in FIG. 1, for example, the control data is sequentially stored in the order of the control data (n), the time stamp (n) of the control data (n), and the absolute time data (n). Timestamp, and absolute time data.

The login parameter 114 has a login condition for specifying a control parameter to be registered and a cycle for implementing the login. The registration parameter 114 is set using the setting data set from the personal computer 40.

The data acquisition unit 102 adds the time stamp and the absolute time data to the control data 106 collected from the control device 10 and stored in the common memory 105, and then writes it to the internal memory 103. The data acquisition unit 102 operates to receive a notification of writing of the control data 14 transmitted from the control data transfer unit 16 when the control data transfer unit 16 of the control device 10 writes the control data 14 to the shared memory 105. The control data 106 of the shared memory 105 is read in. Then, the data acquisition unit 102 adds the time stamp and the absolute time data to each of the read control data 106 and writes it to the annular ring region 113 of the internal memory 103.

In other words, the data acquisition unit 102 acquires the time stamp from the common timer 111 and acquires the absolute time data from the absolute time counter 110 when the control data 106 is written in the annular ring region 113 of the internal memory 103. Then, the data acquisition unit 102 will acquire the time stamp The absolute time data is added to the control data 106, and the control data 106, the time stamp, and the absolute time data are written into the annular ring region 113 as a unit.

The data storage unit 104 reads and memorizes the control data stored in the internal memory 103 and the time stamp and absolute time data corresponding to the control data. Further, the data storage unit 104 also stores control data combined with the file creation unit 107 and time stamps and absolute time data corresponding to the control data. That is, the data storage unit 104 has a function as a combined data storage unit.

Then, the data storage unit 104 writes the control data together with the time stamp to the memory medium 50. The data storage unit 104 reads the control data from the ring buffer area 113 in the internal memory 103 in accordance with the registration execution condition specified by the registration parameter 114, and then writes the read control data into the memory medium. 50. Further, the data storage unit 104 writes the combined control data which is rearranged and combined by the combined file creating unit 107, together with the time stamp, into the memory medium 50. The data storage unit 104 memorizes the control data of the internal memory 103 together with the time stamp to the memory medium 50, but does not store the absolute time data in the memory medium 50.

When the control data is written to the memory medium 50, the data storage unit 104 may process the control data before writing it. The processing of the control data to be performed may be, for example, processing by four arithmetic operations or conversion of binary data into character string data.

The combined file creation unit 107 rearranges and combines the control data acquired from the plurality of control devices 10 to create combined control data, and forms a file to be output to the data storage unit 104. The combined file creation unit 107 includes a control data integration arrangement unit 108 and a control data interpolation unit 109. The control data integration and arrangement unit 108 reads the control data collected from the plurality of control devices 10 and integrated into the internal memory 103, and then performs the combination of the read control data in accordance with the settings specified by the registration parameter 114. . The combination control data which is rearranged and combined by the combination file creation unit 107 is first stored in the data storage unit 104, and then written from the data storage unit 104 to the memory medium 50.

The rearrangement and combination of the control data can be specified by the setting unit used when the control data is collected from each control device 10. That is, when the collected control data of the respective control devices 10 is rearranged, the interval as the reference can be specified in the registration parameter 114. The data collection interval of the control device 10 can be specified as this interval. Then, the control data acquired from the control device 10 is rearranged and combined in time series order based on the data collection interval of a certain control device. The rearrangement of the control data is performed based on the value of the absolute time data.

Further, when the control data is combined, the control data is rearranged based on the time interval at which the control data of one of the control data of the plurality of control devices 10 is collected, and the control data is rearranged. In the control data of the other control device 10 in which the collection period of the control data is different from the control device, there is no case of the control data corresponding to the time stamp and the absolute time data. As such, at a certain control device 10 In the control data, there is a case where the data time stamp and the absolute time data do not exist, and the control data interpolation unit 109 performs interpolation of the control data in accordance with the setting specified by the registration parameter 114.

The memory medium 50 is an external memory means installed in the registration device 100, and is, for example, a CF card (Compact Flash card). The memory medium 50 memorizes the control data of the internal memory 103 together with the time stamp, but does not memorize the absolute time data.

The communication unit 115 communicates with an external device. The CPU 101 is a control unit that controls the entire operation of each unit in the registration device 100.

Next, the procedure of the time synchronization processing in the registration device 100 of the present embodiment will be described with reference to Fig. 2 . Fig. 2 is a flowchart for explaining processing of writing clock data to the common timer of the registration device of the embodiment.

First, since the state in which the registration device 100 is just started is the initial state, the initialization of the common timer 111 is performed. The initialization of the common timer 111 is performed by the time synchronization requesting unit 112 writing the time information acquired from the time delivery unit 31 of the servo personal computer 30 to the common timer 111 to reflect the time to the common timer 111. In this manner, the time of the common timer 111 is synchronized with the timing of the servo personal computer 30, and the common timer 111 is initialized.

When the time synchronization requesting unit 112 acquires the time information from the time delivery unit 31 of the servo personal computer 30 so that the operation of synchronizing the time of the common timer 111 fails, the time synchronization requesting unit 112 passes the control unit through the bus bar 20. When the time information is acquired, the time of the time information of the control device 10 is written into the common timer 111 to reflect the time to the common timer 111. Thereby, the time of the common timer 111 is synchronized with the timing of the control device 10, and the common timer 111 is initialized.

After the common timer 111 is initialized, the time synchronization requesting unit 112 operates in a predetermined operation cycle in accordance with the setting specified by the registration parameter 114, and performs the operation of the flowchart of FIG. 2 every time the operation is performed.

In other words, when the time synchronization request unit 112 starts operating, the time is obtained from the common timer 111 (step S110). Next, the time synchronization requesting unit 112 determines whether or not the acquired time satisfies the condition of the execution time synchronization specified in the registration parameter 114, that is, whether or not the time at which the time synchronization is to be performed is reached (step S120). When the acquired time has not reached the time at which the time synchronization is to be performed ("NO" in the step S120), the time synchronization requesting unit 112 returns to the step S110 to continue the processing.

When the acquired time has come to the time when the time synchronization is to be performed (YES in step S120), the time synchronization requesting unit 112 starts the time synchronization processing. In the time synchronization processing, the time synchronization request unit 112 issues a time synchronization request and transmits it to the servo personal computer 30 (step S130). Then, the time synchronization requesting unit 112 determines whether or not the time can be acquired from the time delivery unit 31 of the servo personal computer 30 (step S140).

When the time is obtained from the time delivery unit 31 of the servo personal computer 30 (YES in step S140), the time synchronization request unit 112 writes the time of the acquired time information to the common timer 111 to update the common timer 111. Time (step S150). Then, the time synchronization requesting unit 112 The synchronization processing of the series of common timers 111 is ended.

On the other hand, if the time cannot be acquired from the time delivery unit 31 of the servo personal computer 30 (NO in step S140), the time synchronization request unit 112 determines whether or not the time synchronization request has elapsed (whether or not time out) (step S160). If the time limit for the time synchronization request has elapsed (YES in step S160), the time synchronization requesting unit 112 records the information of the time synchronization failure in the time synchronization requesting unit 112, and then ends the synchronization of the series of common timers 111. deal with.

On the other hand, if the time limit for the time synchronization request has not elapsed (NO in the step S160), the time synchronization requesting unit 112 returns to the step S130, and the timing (timing) specified in the registration parameter 114 is reissued and transmitted. Synchronization requirements.

Next, the data acquisition processing procedure of the data acquisition unit 102 in the registration device 100 according to the present embodiment will be described with reference to FIG. FIG. 3 is a flowchart showing the procedure of data acquisition processing by the data acquisition unit 102 in the registration device 100.

After the registration device 100 is started and the common timer 111 is initialized, the control data transfer unit 16 transfers the value of the control data 14 of the control data storage unit 15 to the registration device 100 at a predetermined constant cycle or the operation cycle of the control program. The shared memory 105 is provided, and a notification of writing of the control data 14 is transmitted to the data acquisition unit 102 of the registration device 100.

The data acquisition unit 102 receives the notification of the writing of the control data 14 transmitted from the control data transfer unit 16 of the control device 10, and The storage process of the control data 14 is started. The data acquisition unit 102 first determines whether or not there is a notification of the writing of the control data 14, that is, whether or not the notification of the writing of the control data 14 transmitted from the control data transfer unit 16 of the control device 10 is received (step S210).

If there is no notification of the writing of the control data 14, that is, if the notification of the writing of the control data 14 transmitted from the control data transfer unit 16 of the control device 10 is not received (the result of step S210 is "NO"), then The data acquisition unit 102 repeats step S210 until a notification is received.

On the other hand, if there is a notification of the writing of the control data 14, that is, the notification of the writing of the control data 14 transmitted from the control data transfer unit 16 of the control device 10 is received (the result of step S210 is "YES"). Then, the data acquisition unit 102 determines whether or not the ring buffer area 113 of the internal memory 103 has a storage space (step S220). If the ring buffer area 113 has no storage space ("NO" in the step S220), the data acquisition unit 102 replies the control device 10 with error information, and then ends the storage processing of the series of control data 14.

On the other hand, if the ring buffer area 113 has a storage space (YES in step S220), the data acquisition unit 102 copies the control data 106 of the shared memory 105 to the ring buffer area 113 (step S230). . Next, the data acquisition unit 102 copies the value of the common timer 111, that is, the time, to the ring buffer area 113, and adds the value (time) as a time stamp to the control data 106 previously copied to the ring buffer area 113. (Step S240). Then, the data acquisition unit 102 copies the value of the absolute time counter 110, that is, the time, to the ring buffer area. 113, and the value (time) is added as the absolute time data to the control data 106 previously copied to the ring buffer area 113 and the value of the common timer 111 is added (step S250).

As described above, the control data (1), the time stamp (1) and the absolute time data (1) of the control data (1), the control data (2), the time stamp (2) of the control data (2), and the absolute In the order of the time data (2), the control data, the time stamp, and the absolute time data are sequentially stored in the time series sequence to the ring buffer area 113. Then, when the copying of the above data is completed, the data acquisition unit 102 advances the write index of the ring buffer area 113, and then ends the series of control data storage processing.

The data storage unit 104 sequentially reads the data stored in the ring buffer area 113 from the read index into the position of the write index up to and outputs it to the file. At this time, the data storage unit 104 outputs the control data and the time stamp, and does not output the absolute time data.

Next, a flow of processing for rearranging and combining control data acquired from a plurality of control devices 10 in the combined file creating unit 107 of the registration device 100 according to the present embodiment will be described with reference to FIGS. 4 and 5 . Fig. 4 is a view showing an example of a configuration in which control data is collected from a plurality of control devices in the registration system of the embodiment. Fig. 5 is a flow chart for explaining a process in which the registration device 100 rearranges and combines control data in the registration system of the embodiment.

Here, the control data A collected from the control device A 10A and the control data B collected from the control device B 10B are added with the time stamp and the absolute time data, and are stored in the inside of the registration device 100. The annular buffer region 113 of the memory 103. In Fig. 4, "A" is added to the end of the symbol of the component related to the control data of the control device A 10A, and "B" is added to the end of the symbol of the component related to the control data of the control device B 10B. In addition, in FIG. 4, the flow of the control data is highlighted, and therefore, a part of the configuration is omitted.

In the control data integration processing, the control data integration and arrangement unit 108 reads out from the registration parameter 114 and acquires the rearrangement reference setting in which the reference of the rearrangement of the control data is set (step S310). Here, the control data collected from the control device A 10A and the control device B 10B is rearranged and combined based on the control data A, that is, based on the time interval of the collection of the control data A. Description. Therefore, the rearrangement reference setting here is the setting information of the rearrangement of the control data A as the reference of the rearrangement.

Next, the control data integration and arrangement unit 108 is set in accordance with the rearrangement reference, and the ring buffer regions 113 are stored in the ring buffer region 113 one by one from the plurality of ring buffer regions 113 in which the control data of the object to be rearranged is stored. The data is completely read (step S320). For example, the control data integration arranging unit 108 first reads out the data stored in the ring buffer area A 113A, and then reads the data stored in the ring buffer area B 113B.

Fig. 6 is a view showing control data in the registration device of the embodiment. Fig. 6(a) shows the control data A obtained from the control device A and stored in the ring buffer area A 113A, and the time stamp and absolute time data attached to the control data A. Figure 6 (b) shows the slave control device B The control data B obtained and stored in the ring buffer area B 113B and the time stamp and absolute time data attached to the control data B are obtained. Fig. 6(c) shows control data in which control data A and control data B are rearranged based on control data A.

For example, in the ring buffer area A 113A, control data A(1) to control data A(n) as shown in Fig. 6(a) belonging to control data A obtained from the control device A, and respective control data are stored. The corresponding time stamp of A and absolute time data. The number in () indicates the sequence number in which each control data A is memorized to the ring buffer area A 113A. For example, in the ring buffer area B 113B, control data B(1) to control data B(n) as shown in FIG. 6(b) belonging to the control data B acquired from the control device B, and respective control data are stored. The corresponding time stamp of B and the absolute time data. The number in () indicates the sequence number in which each control data B is memorized to the ring buffer area B 113B.

In the control data A(n), as shown in Fig. 6(a), data as control data A(1) is stored: 1. Data as control data A(2): 2, ... Control data of data A (8): 8. The registration device 100 re-synchronizes the common timer 111 with the servo personal computer 30 after the time of 14:10:03 in the absolute time data. Therefore, the control data A(3):3 is reversed with the time stamp of the control data A(4):4, and the time of the control data A(3):3 and the time stamp of the control data A(5):5 becomes the same.

On the other hand, the absolute time counter 110 is synchronized with the time of the common timer 111 when the registration device 100 is just started. No time corrections are made. Therefore, the absolute time data of the absolute time counter 110 is maintained in the time series order in the order in which the control data A is stored in the ring buffer area A 113A as shown in Fig. 6(a). The time interval for collecting the control data A is a one second period.

On the other hand, in the control data B(n), as shown in FIG. 6(b), data as control data B(1): 100, data as control data B(2): 150, As the data of the control data B(3): 200. As far as the control data B(n) is concerned, as shown in FIG. 6(b), there is no control data B in which the time stamp is reversed or becomes the same, but the time interval in which the data is collected is different from the control data A. , is a 3-second period.

Next, the control data integration arranging unit 108 repeats the processing corresponding to the following steps S350 to S370, and the number of repetitions is the number of object settings for which the control data is rearranged, that is, the control of the rearrangement of the control data is performed. The number of devices 10 (step S330a: start, step S330b: end). Further, in the repetition of the processing in steps S330a to S330b, the number of repetitions is the number of control data acquired from one control device 10, and the processing corresponding to steps S350 to S370 described below is repeated (step S340a: Start, step S340b: end).

The control data integration arranging unit 108 reads out the value of the absolute time data from among the data read from the plurality of ring buffer areas 113 in step S320, and then determines whether or not the control data in which the values of the absolute time data match are present (step S350). When the control data in which the values of the absolute time data match are present (YES in step S350), the value of the control data is acquired and recorded in the control data integration array unit 108 (step S360). Here, since the time interval of the collection of the control data A is used as a reference, that is, the absolute time data suitable for the time interval of the collection of the control data A is taken as the reference, the same absolute time data as the control data A is added. The value of the control data B of the absolute time data is recorded in the table shown in Fig. 6(c) in the control data integration and arrangement unit 108.

On the other hand, if the control data in which the values of the absolute time data match does not exist (the result of the step S350 is "NO"), the information of "no data" is recorded in the column of the control data in the control data integration array unit 108 (step S370). Here, since the time interval of the collection of the control data A is used as a reference, that is, the absolute time data suitable for the time interval of the collection of the control data A is used as the reference, the same absolute time data as the control data A is added. In the case where the control data B of the absolute time data does not exist, for example, information of "no data" is recorded in the column of the control data B in the table shown in Fig. 6(c).

Then, the processing of steps S350 to S370 is repeated and the number of repetitions is the number of control data acquired from one control device 10 (step S340a: start, step S340b: end), and the above-described respective processes are repeated and repeated. The number of times is the number of objects to be rearranged for control data, that is, the number of control devices 10 to perform rearrangement of control data (step S330a: start, step S330b: end). Then, the processing ends when the end condition is satisfied.

The result of controlling the data rearrangement, which is also the basis of the control data to be output to the file of the data storage unit 104, is as shown in Fig. 6(c). In this case, even due to the timing of the common timer 111 and the servo The time synchronization of the human computer 30 causes the time stamp to be reversed, and since the control data is arranged based on the absolute time data of the absolute time counter 110, the control data can be time-series in accordance with the control data from the control device 10. The order, that is, the time series sequence in which the control data is generated in the control device 10 is arranged.

The rearranged and combined control data is stored in the data storage unit 104 as a file, and then output to the memory medium 50 in the form of a file. However, when outputting to the memory medium 50 in the form of a file, the value of the absolute time counter 110 is not output. Since the value of the absolute time counter 110 is not output, the size of the file can be prevented from becoming large, and the burden of the capacity of the memory medium 50 can be prevented from increasing.

On the other hand, since the file output to the memory medium 50 includes the time stamp of the common timer 111 after the time synchronization, the time stamp can be confirmed by comparing the time stamp with the clock of the external device including the control device 10. What kind of data is collected at what time.

As a result of the above rearrangement, if there is a case where the control data of the absolute time data has the same value, that is, if there is an absolute time data, the column of the control data in the same column is recorded as "no data", then the control data is interpolated. The portion 109 performs interpolation of control data corresponding to the lack of the absolute time data. The interpolation of the control data is implemented only when there are more than two control data to be set. If there are two or more control data to be set, the control data interpolation unit 109 outputs a fixed value set in advance in the registration parameter 114. In the case where the registration parameter 114 is not set in advance with a fixed value, the control data interpolation unit 109 outputs 0.

Next, it is explained that the control data in which the values of the rearrangement result absolute time data match does not exist, that is, there is an interpolation method of the control data in the case where the column of the control data of the same time data is recorded as "no data". The interpolation method of the data specifies, for example, the same value interpolation in the registration parameter 114, and the control data interpolation unit 109 outputs the same value as the control data recorded before the control data to be interpolated. In the case of interpolating the rearrangement data shown in Fig. 6(c), the same value as the control data recorded before the instant of the control data B is output. In this case, the resulting combined control data will be as shown in Figure 7. The combined control data obtained after the combination and the interpolation is finally outputted to the memory medium 50 after being stored in the data storage unit 104, as shown in Fig. 8. Fig. 7 is a view showing control data in the case where the lack of data is obtained by the same value interpolation method in the registration device 100 of the present embodiment. Fig. 8 is a view showing data of a file output to the memory medium 50 in the case where the missing data is obtained by the same value interpolation method in the registration device 100 of the present embodiment.

In Fig. 7, the control data B corresponding to the absolute time data "14:10:02" obtained by the interpolation is "100". The control data B corresponding to the absolute time data "14:10:03" obtained by the interpolation is "100". The control data B corresponding to the absolute time data "14:10:05" obtained by the interpolation is "150". The control data B corresponding to the absolute time data "14:10:06" obtained by the interpolation is "150". The control data B corresponding to the absolute time data "14:10:08" obtained by the interpolation is "200".

In addition, when the file is output to the memory medium 50 The data is as shown in Fig. 8, which is data after the absolute time data is omitted from the data shown in Fig. 7. Further, the format of the file output to the memory medium 50 includes information relating to the registration device that includes the combined control data and outputs the file to the memory medium 50. In the format of the file output to the memory medium 50, for example, a file header unit 120 is provided as shown in FIG. In the file header 120, the information about the registration device that is included in the file output to the memory medium 50 is included in the file header 120, and includes the identification information of the registration device, the output form of the time, and the file for discriminating the file. The combined control data contained in the data is based on what is set to combine the information of the data. For example, in Fig. 8, the identification information of the registration device includes information of the "registration device_X", and X indicates the product model of the registration device. Further, for example, in Fig. 8, the output form of the time, that is, the representation form of the time, includes information of "time stamp (hh:mm:ss)", and hh, mm, and ss respectively represent time stamps. Minutes and seconds. Further, for example, in the eighth drawing, in the information for judging whether or not the combined control data included in the file is combined according to what setting, the data included in the control data after the identifiable combination is included The information collected by the control device, that is, the information obtained from which control device the data contained in the combined control data is obtained, that is, the information of "Control Data A" and "Control Data B".

On the other hand, the interpolation method of the data specifies, for example, linear interpolation in the registration parameter 114, and the control data interpolation unit 109 uses the following formula (1) to insert the control data to be interpolated. value. That is, in the case where (xi, yi), (xi+1, yi+1) is recognized and the value of xi≦x≦xi+1 is satisfied, the y value is obtained using the following formula (1).

y=yi+(yi+1-yi)×(x-xi)÷(xi+1-xi)...(1)

The case where the rearranged data shown in Fig. 6(c) is substituted into the equation (1) will be described. For example, if the control data B of the absolute time data "14:10:02" is required, assuming x=seconds (millisecond units) and y=control data B, then y=100+(150-100)×(2000- 1000) ÷ (4000-1000), which is y=117. Similarly, after interpolating other control data, the resulting combined data will be as shown in Fig. 9. Further, the data obtained by combining and interpolating the final combined data to the data storage unit 104 and outputting it to the memory medium 50 in the form of a file is as shown in FIG. Fig. 9 is a view showing control data in the case where linear interpolation is performed on the lack of data in the registration device 100 of the present embodiment. Fig. 10 is a view showing data which is output to the file of the memory medium 50 in the case where linear interpolation is performed for the lack of data in the registration device 100 of the present embodiment.

In Fig. 9, the control data B corresponding to the absolute time data "14:10:02" obtained by the interpolation is "117". The control data B corresponding to the absolute time data "14:10:03" obtained by the interpolation is "133". The control data B corresponding to the absolute time data "14:10:05" obtained by the interpolation is "167". The control data B corresponding to the absolute time data "14:10:06" obtained by the interpolation is "183". Interpolation and absolute time data The control data B corresponding to "14:10:08" is "217".

In addition, as shown in FIG. 10, the data when the file is output to the memory medium 50 is the data after the absolute time data is omitted from the data shown in FIG.

In this way, the missing portion of the control data B at the time of coincidence with the respective collection intervals of the control device A is interpolated, and the rearrangement is displayed in a form that is visually easier to understand, such as a trend graph. Data analysis becomes easier when it comes to controlling data. Similarly, when the control data collected from the plurality of control devices 10 is collected, by removing some of the desired control data to make the interval larger, it is displayed in a visually easy-to-understand format such as a trend graph or the like. Data analysis will also become easier when rearranging the control data after the reorganization. Moreover, since the collected control data can be rearranged by the collection interval of the control data of the designated desired control device 10, the analysis data based on the designated control device 10 can be obtained.

Next, the functions executed by the control device 10, the servo personal computer 30, the personal computer 40, and the registration device 100 in the registration system of the above-described embodiment are configured to store the program of the function, and are as shown in the eleventh. The computer device having a CPU, a memory device, and the like shown in the figure executes the program to realize the function.

Fig. 11 is a block diagram showing an example of a configuration of a computer device 200 that realizes the functions of the control device 10, the servo personal computer 30, the personal computer 40, and the registration device 100 described above. As shown in FIG. 11, the computer device 200 has an internal bus bar 209. Display device 201 such as LCD (Liquid Crystal Display), input device 202 such as keyboard, CPU 203 for calculation, non-volatile memory 204 such as ROM (Read Only Memory), RAM (Random Access Memory), etc. The volatile memory 205 is stored on the display memory 206 of the display screen of the display device 201, and is external to the interface of the pluggable external memory such as a flash memory. The memory interface 207 is connected to a communication interface 208 that communicates with an external device.

Further, the program stored in the non-volatile memory 204 in which the above-described data registration method is described is loaded into the volatile memory 205, and executed by the CPU 203. The program is recorded on a hard disk, CD (Compact Disk), ROM (Read Only Memory), MO (Magneto-Optical disk), DVD (Digital Versatile Disk or Digital Video Disk) and other computer devices. The recording medium, or the program can also be distributed via a computer network communication line such as the Internet. In this case, the program is stored on the non-volatile memory 204 from the information processing terminal connected through the communication interface 208.

As described above, in the registration system of the present embodiment, the registration device 100 includes the common timer 111 that corrects the time at a predetermined timing to synchronize with the standard time of the external servo personal computer 30, and the absolute time counter 110. The absolute time counter 110 corrects the time to be synchronized with the time of the common timer 111 shortly after the power of the registration device 100 is started, and does not correct the time in the operation of the registration device 100.

Further, when collecting the control data from the control device 10, the registration device 100 adds the time stamp from the common timer 111 and the absolute time data from the absolute time counter 110 to the control data and stores them in the internal memory 103. Then, based on the value of the absolute time counter 110, the control data stored in the internal memory 103 is rearranged in the time series order obtained from the control device 10. Therefore, even if the common timer 111 has a clock correction due to synchronization with an external standard time, the control data can be rearranged in the time series of the control data of the collection control device 10, and the control data can be easily and surely The condition of each control device 10 is collected in time series.

As described above, in the registration system of the present embodiment, even when the time of the common timer 111 is reversed in synchronization with the external standard time, the time of the absolute time counter 110 that is not affected by the time synchronization is used. As a basis for rearrangement. Therefore, the time series sequence in which the control data 14 is acquired from the control device 10 can be discriminated against the collected control data 14, and the time series sequence generated by the control data 14 can be discriminated.

Further, when the data is output, the time stamp of the time-synchronized common timer 111 is output, so that it is possible to confirm what data was collected at a time compared with the clock of the external device including the control device 10.

Further, in the registration system of the present embodiment, when the collected control data of each control device 10 is rearranged, the interval as the reference can be specified in the registration parameter 114. The data collection interval of the control device 10 can be specified as the interval. The number of controls of each control device 10 collected According to the result of the rearrangement, when the time of the absolute time data of the control data does not exist, the lack of control data can be obtained by interpolation in the form specified in the registration parameter 114. In terms of the form of interpolation, interpolation of approximate values such as linear interpolation, equi-value interpolation, and the like can be utilized.

Therefore, according to the registration system of the present embodiment, it is possible to easily and surely rearrange the control data generated by the control device 10 in the order of the generated time series.

(industrial availability)

As described above, the registration system of the present invention is available in the case where it is easy and sure to rearrange the control data generated by the control device in the order of the generated time series.

10‧‧‧Control device

11‧‧‧CPU

12‧‧‧Control and Implementation Department

13‧‧‧Control program

14‧‧‧Control data

15‧‧‧Control data storage

16‧‧‧Control Data Transfer Department

17‧‧‧Communication Department

20‧‧‧ Busbar

30‧‧‧Servo PC

31‧‧‧Time Delivery Department

32‧‧‧Communication Department

40‧‧‧PC

41‧‧‧ Login Settings Tool

42‧‧‧Communication Department

50‧‧‧Memory Media

60‧‧‧ cable

100‧‧‧ Login device

101‧‧‧CPU

102‧‧‧Data Acquisition Department

103‧‧‧Internal memory

104‧‧‧Data Memory Department

105‧‧‧Shared memory

106‧‧‧Control data

107‧‧‧Combined with the Archives Production Department

108‧‧‧Control data integration and alignment

109‧‧‧Control Data Interpolation Department

110‧‧‧ Absolute time timer

111‧‧‧Common timer

112‧‧‧Time synchronization request department

113‧‧‧ ring buffer area

114‧‧‧ Login parameters

115‧‧‧Communication Department

Claims (11)

A registration system includes a plurality of target devices as data collection targets, and a registration device that collects and records data in the target device from the plurality of target devices. The registration device includes: The clocks of all the registration systems are provided in a unified manner, and the time is corrected to a first clock synchronized with an external standard time at a predetermined timing; and when the registration device is activated, the time is corrected to be synchronized with the time of the first clock. a second clock that does not correct the time in the operation of the registration device; a data storage unit that stores the data acquired from the plurality of target devices for each of the target devices; and a predetermined collection time interval of each target device Obtaining the data from the plurality of target devices, and adding the time of the first clock and the time of the second clock when the data is acquired from the target device to each of the data, and storing the data in the data storage unit Data acquisition unit; before storing in the data storage unit The control data integration arrangement unit in which the data of the plurality of target devices is sequentially rearranged and combined with the time sequence of the data from the target device; and a combined data storage unit that stores the combined data; and the control data integration arrangement unit The timing of the aforementioned second clock added to the aforementioned data stored in the data storage unit For the reference, the aforementioned data of the plurality of object devices are rearranged and combined in the order of the aforementioned time series. A registration device that is connected to a plurality of target devices that control the controlled device to communicate with each other, and collects and records data in the target device from the plurality of target devices, and includes a clock for making the entire registration system Uniformly equipped, and correcting the time to a first clock synchronized with an external standard time at a predetermined timing; and correcting the time to synchronize with the time of the first clock when the registration device is started is not in the registration device a second clock for correcting the time; a data storage unit that stores the data acquired from the plurality of target devices for each of the target devices; and a plurality of target devices at a predetermined collection time interval of each target device Acquiring the data, and adding the time of the first clock and the time of the second clock when the data is acquired from the target device to each of the data, and storing the data in the data storage unit; The foregoing data of the plurality of object devices stored in the memory portion is pressed a control data integration arrangement unit that sequentially reorders and combines the data in the time series sequence; and a combined data storage unit that stores the combined data; and the control data integration arrangement unit is configured in the data storage unit The time of storing the aforementioned second clock added to the aforementioned data For the reference, the aforementioned data of the plurality of object devices are rearranged and combined in the order of the aforementioned time series. The registration device according to claim 2, wherein the collection time interval is different between the plurality of target devices, and the control data integration arrangement portion is formed from the plurality of target devices The data acquired from the plurality of target devices is rearranged and combined in the time series order based on the time of the second clock added to the data acquired by the target device. The registration device according to the third aspect of the invention, wherein the control data integration and arrangement unit performs interpolation of the data or the foregoing when the number of acquired data is different between the plurality of target devices. The reduction of data. The registration device according to any one of claims 2 to 4, wherein the combined data and the time of the first clock are used as files and output to an external memory means other than the combined data storage unit. The aforementioned file contains information on the aforementioned login device that made the file. The registration device according to claim 5, wherein the information of the registration device includes identification information of the registration device that makes the file, an output form of the time of the first clock, and identification for obtaining Enclosed in the aforementioned combined data The information of the target device including the aforementioned data is used as information of the aforementioned login device. The registration device according to claim 2, wherein the target device is a control device that controls the controlled device, and the data is control data generated when the control device performs control by the control device. A data registration method is a data registration method for collecting data of a plurality of the target devices from each target device and recording the data in the registration device, comprising: obtaining the plurality of target devices from each of the target device at each of the predetermined collection time intervals a first step of the data; adding, to the data obtained from the target device, the time of the first clock and the time of the second clock to each of the data, and then performing the data for each of the target devices a second step of storing the data storage unit in the registration device; and causing the data of the plurality of target devices stored in the data storage unit to be rearranged and combined in a time series order of obtaining the data from the target device And a fourth step of causing the combined data to be stored in the binding data storage unit in the registration device for each of the target devices; wherein the first clock corrects the time at a predetermined timing External standard time synchronization clock, The second clock is a clock that corrects the time when the registration device is activated to be synchronized with the time of the first clock, and does not correct the time in the operation of the registration device. The third step is the data memory. The data of the plurality of target devices is rearranged and combined in the time series order based on the time of the second clock added to the data stored in the portion. The data registration method according to claim 8, wherein the collection time interval is different between the plurality of target devices, and the third step is performed by any one of the plurality of target devices. The data acquired from the plurality of target devices is rearranged and combined in the time series order based on the time of the second clock added to the data acquired by the target device. The data registration method according to claim 9, wherein the third step is to perform interpolation of the data or the data in the case where the number of the acquired data is different between the plurality of target devices. The deletion. The data registration method according to any one of claims 8 to 10, wherein the target device is a control device that controls the controlled device, and the data is controlled by the control device. Control data generated.