JP2012175376A - Management apparatus and data collection apparatus - Google Patents

Abstract

The transmission data amount of collected data is effectively reduced by selecting an appropriate data amount reduction processing method.
A control device 112 collects data from a device and transmits the collected data to a server device 111. The server device 111 analyzes the collected data from the device for each predetermined state, determines an optimum data amount reduction processing method for each state, and notifies the control device 112 of the determined data amount reduction processing method for each state. . The control device 112 processes the collected data by the data amount reduction processing method notified from the server device 111 for each state, and transmits the processed collected data to the server device 111.
[Selection] Figure 1

Description

  The present invention relates to a technique for reducing the amount of transmission data when transmitting data.

A control device (for example, PLC (Programmable Logic Controller)) is a device that controls and manages a device connected to itself.
The control device has a function of collecting data for device management in addition to a function of transmitting a command for controlling the operation of the connected device to the device. Data for device management is, for example, a value indicating the input or output state of a circuit in the device, a processing result value of the device, or the like. These are called device signal value, device data, and device signal value data.
The collected device signal values are accumulated in a device memory in the control device, sent from the control device to a server device, etc., and used in a device management system or the like.
Communication between the server device of the collected data and the control device is performed by a communication system for control devices.
In the communication system for control equipment, when collecting data from the equipment, there is a distribution type communication method in which a data collection command is sent from the server device to the control equipment, and the control equipment side automatically collects and transmits the equipment data. .
The control device continues to collect device data at a certain collection interval, and transmits data to the server device when data for the transmission interval is accumulated.
This process is automatically and repeatedly executed by the control device after receiving a data collection command from the server device.
After transmitting the data collection command, the server device continues to update the data transmitted from the control device to the database.
In recent years, in this communication for control devices, the number of data collection points and the data collection / transmission interval have been shortened for more accurate device abnormality monitoring and production management, leading to an increase in communication volume. Yes.

In order to improve data collection efficiency with software (S / W) alone without changing the hardware (H / W) such as the line and control device itself, data such as compression to the transmission data from the device (client) side There is a method of performing processing to reduce the amount.
There are communication devices that perform processing that reduces the amount of data sent from the client side, but all of these methods determine whether or not to compress based on the network traffic (bandwidth load). It is.
Conventionally, a means for monitoring the traffic on the network has been provided, and compression / non-compression of image data to be transmitted has been determined by detecting the traffic on the network (for example, Patent Document 1).
In addition, the base station controller has means for measuring the delay time of each base station, and by determining the network bandwidth load based on the measured delay time, the transmission rate (compression) of voice data according to the load (For example, Patent Document 2).

JP-A-6-164651 JP 2002-290628 A

Conventionally, processing for reducing the amount of data during communication has not been performed in communication for control devices.
Data exchanged by control device communication includes data indicating the operation of a device managed by the control device, data indicating the results of processing performed by the device, and the like.
The operation of the device is specified by the control program, and when the device is operating normally, the operation is configured by repeating a certain process, that is, a fixed process.
The process starts with an input signal (input device) and outputs an output signal (output device) at the end.
The output also becomes an input for starting another process.
Therefore, when the collected signal values are viewed in time series, the values repeat with a certain tendency (waveform), and the waveform at the time of standard processing is obtained from the compressed data that is described by replacing consecutive values with codes. In some cases, the amount of data obtained by taking the difference between and can be reduced.
Although it is possible with the existing technology shown in Patent Document 1 and Patent Document 2 to perform processing that reduces the amount of data to be transmitted during communication, Patent Document 1 determines whether or not to compress based on the amount of communication. Therefore, in the case of device data that is regular but has many fluctuations in value, the efficiency is poor.
In addition, the trend of device data varies depending on the state of the device, but the trend of multiple signal values to be collected is sparse, and the actual data collected by the control device is variable and routine processing. Effects are mixed.
For this reason, it is difficult to mechanically determine whether the value of the collected data is the data waiting for the end of another variable process or abnormal data when determining from where to where the waveform is a waveform.

  The main object of the present invention is to solve the above-mentioned problems, and the main object is to effectively reduce the transmission data amount of collected data by selecting an appropriate data amount reduction processing method. And

The management device according to the present invention is:
A management apparatus connected to a data collection apparatus, managing a plurality of devices via the data collection apparatus, and receiving device data collected by the data collection apparatus from the data collection apparatus;
A state information storage unit that stores state information that defines a state that is a logical division of an operation procedure of the plurality of devices;
A device designating unit for designating a data collection target device among the plurality of devices as a collection target device;
A collection instruction unit that instructs the data collection device to transmit the collected data from the collection target device without performing data amount reduction processing to reduce the data amount;
A collection data receiving unit that receives collection data from the collection target device transmitted from the data collection device based on an instruction from the collection instruction unit;
A collected data judging unit for judging in which state the collected data from the collection target device received by the collected data receiving unit is the collected data collected from the collection target device based on the state information; ,
Applying each of a plurality of data amount reduction processing methods to the collected data received from the collection target device received by the collection data receiving unit, and specifying a data amount reduction processing method for each state; ,
Notify the data collection device for the specified data amount reduction processing method specified by the processing method specifying unit for each state, and process the collected data to the data collection device for each state using the specified data amount reduction processing method And a data processing instruction unit for instructing to transmit the collected data processed by the designated data amount reduction processing method.

  According to the present invention, since the collection data from the collection target device is received and the optimum data amount reduction processing method is designated based on the received collection data, the transmission data amount of the collection data can be effectively reduced. .

The figure which shows the structural example of the communication system for control apparatuses which concerns on Embodiment 1 and 2. FIG. FIG. 3 shows a configuration example of a server apparatus according to the first embodiment. FIG. 3 is a diagram illustrating a configuration example of a control device according to the first embodiment. FIG. 4 is a diagram showing an example of waveform information according to the first embodiment. FIG. 4 is a diagram illustrating an example of device information according to the first embodiment. FIG. 3 is a diagram illustrating an example of state information at the time of starting the system according to the first embodiment. FIG. 6 is a diagram illustrating an example of state information in other states according to the first embodiment. FIG. 5 shows an example of a timing chart according to Embodiment 1; FIG. 6 is a diagram illustrating an example of collection device information according to the first embodiment. The flowchart figure which shows the general | schematic flow at the time of the prior analysis which concerns on Embodiment 1. FIG. The flowchart figure which shows the general | schematic flow at the time of the prior analysis which concerns on Embodiment 1. FIG. FIG. 3 is a flowchart showing a schematic flow at the time of collection execution and stop according to the first embodiment. FIG. 3 is a flowchart showing a schematic flow at the time of collection execution and stop according to the first embodiment. FIG. 3 shows an example of an SFC diagram that is one of the control programs according to the first embodiment. FIG. 3 is a flowchart showing a flow when the server apparatus according to the first embodiment creates analysis reference data. FIG. 3 is a flowchart showing a flow when the server apparatus according to the first embodiment creates analysis reference data. FIG. 4 is a diagram showing an example of waveform determination according to the first embodiment. The flowchart figure which shows the flow at the time of the control apparatus which concerns on Embodiment 1 processes data. The flowchart figure which shows the flow at the time of the processing system designation | designated part of the server apparatus which concerns on Embodiment 1 switching a processing system. FIG. 4 is a diagram illustrating a configuration example of a server device according to a second embodiment. FIG. 4 is a diagram illustrating a configuration example of a control device according to a second embodiment. The flowchart figure which shows the general | schematic flow at the time of the prior analysis which concerns on Embodiment 2. FIG. FIG. 6 is a flowchart showing a schematic flow at the time of execution and stop of collection according to the second embodiment. The flowchart figure which shows the flow at the time of performing transmission timing adjustment at the time of the data collection start which concerns on Embodiment 2. FIG. The flowchart figure which shows the flow at the time of performing transmission timing adjustment during the data collection which concerns on Embodiment 2. FIG. The figure which shows the hardware structural example of the server apparatus which concerns on Embodiment 1 and 2, and a control apparatus.

In Embodiments 1 and 2, in order to solve the problems of the prior art, a configuration is described in which high-speed and large-capacity communication is achieved by reducing the data flow rate in the network.
Specifically, in the first embodiment, variable processing and routine processing are classified by associating and analyzing a plurality of signals in the server device, and optimal reduction processing is performed on the collected data.
Further, the server apparatus has a state as information for associating signals, monitors input / output of device data, determines the state transition, and always designates an optimum processing method, thereby reducing the amount of transmission data.
In the second embodiment, the overall communication amount is monitored and the transmission timing is adjusted, the peak of data transmission is distributed and reduced, and communication efficiency is improved by using the communication circuit on average. Increase the number of transmittable data points.

Embodiment 1 FIG.
[A. 1. System configuration diagram: Fig. 1]
FIG. 1 shows a configuration example of a control device communication system 100 according to the first and second embodiments.
In the control device communication system 100, a server device 111 and a plurality of control devices 112-A and 112-B are connected, and a plurality of devices 200 are connected to each control device 112-A and 112-B. Yes.
The server device 111 manages the devices in the plurality of devices 200 via the control devices 112-A and 112-B, and the device data of the devices 200 collected by the control devices 112-A and 112-B. -A, received from 112-B.
The server device 111 is an example of a management device.
The control devices 112 -A and 112 -B collect device data of the device 200 and transmit the collected data to the server device 111.
In the first and second embodiments, when the control devices 112-A and 112-B transmit the collected data, the data amount of the collected data is reduced by a predetermined data amount reduction processing method, and the data amount is reduced. The collected data is transmitted to the server device 111.
The control devices 112-A and 112-B are examples of data collection devices.
Hereinafter, when it is not necessary to distinguish between the control devices 112-A and 112-B, they are referred to as the control device 112.
In addition, FIG. 1 illustrates an example in which two control devices 112-A and 112-B are used, but the number of control devices is arbitrary.

[A. 1.1 System configuration on server side: FIGS. 2 to 8]
FIG. 2 shows a configuration example of the server apparatus 111 according to the present embodiment.
The server device 111 has the following functions, information, and mechanism.

The server-control device communication unit (server side) 101 performs communication between the server device 111 and the control device 112.
The server-control device communication unit (server side) 101 has a function of transmitting commands, settings, and data to the control device 112 and a function of receiving collected data that is transmitted.
The server-control device communication unit (server side) 101 corresponds to a collected data receiving unit.

The device designation unit 120 receives an instruction from the user of the server apparatus 111, and designates a device that is a target of data collection as a collection target device among devices of the plurality of devices 200 according to the instruction from the user.
The device means hardware such as “contact” and “coil” in the circuit of the device 200, and is not limited to this, and data such as “contact” and “coil” in the memory of the device 200 is not limited thereto. Meaning, meaning of data such as “contact” and “coil” acquired from the device 200 stored in the memory of the control device 112, meaning of variable name representing data such as “contact” and “coil” Is also included.
It also includes “collection target name as an ID for human management”.

  The data restoration unit 102 restores the collected data that has been processed by the control device 112 to reduce the amount of data.

The data analysis unit 103 analyzes the collected data.
The data analysis unit 103 includes a waveform creation unit 103-1 and a processing method designation unit 103-2.

The waveform creation unit 103-1 analyzes the collected data, the timing chart 109, the control program 110, and the like, and creates waveform information 105 that is a time-series tendency of the collected data.
In addition, the waveform creation unit 103-1 instructs the control device 112 to transmit the collected data from the collection target device in the preliminary analysis stage.
In addition, the waveform creation unit 103-1 determines in which state the collected data from the collection target device received from the control device 112 is the collected data collected in the preliminary analysis stage.
The state will be described later.
The waveform creation unit 103-1 corresponds to a collection instruction unit, a collected data determination unit, and a data waveform extraction unit.

The processing method designation unit 103-2 designates a data amount reduction processing method for reducing the transmission data amount of collected data for each state, and designates the designated data amount reduction processing method (designated data amount reduction) to the control device 112. The collected data is processed by the processing method), and the collection data processed by the data amount reduction processing method is instructed to be transmitted.
The processing method designation unit 103-2 is also an example of a data processing instruction unit.
For the data amount reduction processing method (hereinafter also simply referred to as processing method), for example, (1) a compression method described by replacing continuous data with a code, and (2) only the difference from the registered waveform information 105 is transmitted. There are, for example, a difference method, and (3) a comparison method in which only data different from a designated reference value is transmitted.
Note that this function is not used when data is not processed.
The processing method designation unit 103-2 gives priority to the registered processing methods in order of efficiency, and designates data to be collected by a processing method with higher priority.
The processing method designating unit 103-2 is used not only for preliminary analysis but also for analysis during operation.
During operation, the data processing method is determined from the data reduction rate of the device information 106.
When the amount of data collected by the higher priority processing method increases, the processing method specifying unit 103-2 automatically switches the method to the lower priority method.

The overall management unit 104 comprehensively monitors and manages a plurality of data.
The overall management unit 104 is used not only for determination of state transition but also for abnormality determination or the like when the user designates a device.
The overall management unit 104 includes a specific device monitoring unit 104-1 and a multiple device monitoring unit 104-2.
The specific device monitoring unit 104-1 monitors the data update state of a device designated by the user and a specific device related to the state change. The monitoring target is a single device.
The multiple device monitoring unit 104-2 is used when a plurality of devices are involved in a combination of a plurality of device values designated by the user or a state change.
When the state transition can be confirmed by the overall management unit 104, the current state is determined from the state of the start device.
Then, the overall management unit 104 generates transition state notification information for notifying the determined state, and transmits the transition state notification information from the server-control device communication unit (server side) 101 to the control device 112.
The transition state notification information is information for notifying the arrived state every time a new state arrives, and the control device 112 processes the collected data by a processing method corresponding to the state notified by the transition state notification information. Do.
The overall management unit 104 corresponds to a migration destination state notification unit and a device monitoring unit.

The waveform information storage unit 1050 -A stores one or more pieces of waveform information 105.
The waveform information 105 is data describing a change tendency on the time axis of the device data value within a certain period.
FIG. 4 is an example of the waveform information 105.
The waveform information 105 includes a waveform name that provides a unique ID and trend data that is a transition of the value of device data.
In the example of FIG. 4, the trend data is bit data with the collection interval of the device as a unit, but is not limited thereto.
For example, word data with the minimum collection interval as a unit may be used.
Further, even if the data has the same tendency, the data is different if the target state or the target device is different. However, the present invention is not limited to this.
The waveform information 105 is stored not only on the server device 111 but also on the control device 112, but the waveform information 105 -B included in the control device 112 is only for the device data collected by the control device 112.

The device information storage unit 1060 stores one or more device information 106.
The device information 106 is data describing information related to the collection target device.
FIG. 5 is an example of device information.
Device information 106 exists for each collection target device, and includes data transmission interval, data collection interval, related state, processing method used in the state, waveform information 105, data amount reduction rate in each processing method, and average communication amount. It is written.
In FIG. 5, as the data amount reduction rate, the ratio of the processed data amount to the unprocessed data amount is shown as a percentage.
Moreover, although the example of three systems is shown as a processing system, when there exists a system other than this, you may add it.
Note that although the processing method used in the state is designated with the highest reduction rate among the data amount reduction rates in each processing method, the user may designate any method.

The state information 107 is data describing device information related to data collection for a specific period.
A state is a state of a device and corresponds to a logical division of operation procedures of a plurality of devices.
The state is arbitrarily set by the user of the control device communication system 100.
The state definition is prepared before the preliminary analysis is performed in this system. In the present embodiment, for example, information required when the device 200 is operated in combination, such as information described in the operation procedure information storage unit 1090 and specifications, is assumed. You can create it.
The device repeats the same operation for a period under a certain state. The device behaves differently when the state transitions.
However, for example, the device m repeats the same operation α in the state x and repeats the same operation β in the state y, but the device n repeats the same operation λ in the state x and does not perform the same operation in the state y. .
6 and 7 are examples of the state information 107. FIG.
The state information 107 exists for each state, and is a unique state name, a start device 401 that serves as a cue to start processing, an end device 402 that is output when the processing ends, and a device that collects during the state. A collection target device 403 is described.
The device signal type of data collected as the collection target device 403 does not matter. In addition to input / output device signals, processing results and other values are also targeted.
That is, the example of the collection target device 403 shown in FIGS. 6 and 7 is only input and output, but items may be added according to the device signal type to be collected such as a timer value and a processing result value. .
The data handled as the end device 402 needs to be an output device signal, but the number is not limited.
The data handled as the start device signal 401 may be plural regardless of the input / output device signal.
Thus, the state information 107 defines the start and end of each state in association with one of the devices.
As will be described later, the waveform creation unit 103-1 analyzes the behavior of the start device and the end device indicated in the state information 107, and collects data collected from the collection target device received from the control device 112 in any state. It is determined whether the collected data has been collected.

The database 108 stores collected data.
Since the database 108 is a known technique, description thereof is omitted.

  The operation procedure information storage unit 1090 stores a timing chart 109 and a control program 110.

A timing chart 109 describes temporal changes of all device values of a circuit that performs clock synchronization in synchronization with the time axis.
As a result, it is possible to obtain a cooperative relationship between devices.
FIG. 8 shows an example of a timing chart.
Note that the description method of the timing chart 109 is not limited to the method shown in the example.
In FIG. 8, a device signal starting with X represents an input device signal, and a device signal starting with Y represents an output device signal.

The control program 110 is a program for controlling the control device 112.
For example, in the case of a control device for the manufacturing industry, there are a ladder language, a SFC (Sequential Function Chart) language, a FBD (Function block diagram) language, and the like, but the invention is not limited thereto.

[A. 1.2 System configuration on the control device side: FIGS. 2, 3, and 9]
FIG. 3 shows a configuration example of the control device 112 according to the present embodiment.
The control device 112 is a device for controlling operations of various devices (not shown).
For example, in the case of the FA (Factory Automation) field, the control device 112 includes a PLC.
The control device 112 has the following functions, information, and mechanism.

A server-control device communication unit (client side) 113 performs communication between the server device 111 and the control device 112.
The server-control device communication unit (client side) 113 has a function of transmitting data to the server device 111 and a function of receiving commands, settings, and data.
In addition to the distribution format that continues to transmit data, the data can be transmitted in an inquiry format that returns a value in response to an acquisition command.
The server-control device communication unit (client side) 113 corresponds to a reception unit and a transmission unit.

The data collection unit 114 collects internal data of the control device 112 itself and data of devices in the device 200 connected to the control device 112.
The collection target is described in the collection device information 116.
The collected data is stored in the control device 112.
The data collection unit 114 attaches a time stamp when collecting data.

The data processing unit 115 processes the collected data to reduce the amount of data and to partition the data for each transmission cycle.
Examples of the processing method for reducing the data amount include (1) a compression method in which continuous data is replaced by a code, (2) a differential method for transmitting only the difference from the registered waveform information 105, and (3) designation. However, the present invention is not limited to such a comparison method that transmits only data different from the reference value.
Further, it is possible not to perform processing for reducing the data amount.
The transmission cycle for separating the collected data is acquired by referring to the collected device information 116.
The processed data is transferred to the server-control device communication unit (client side) 113 and transmitted to the server device 111.

The collection device information storage unit 1160 stores collection device information 116.
The collection device information 116 is data describing information on the collection target device.
FIG. 9 is an example of the collection device information 116.
In the collection device information, a device collected by the control device 112, a transmission interval for each device, a collection interval, a processing method for each state, and a waveform used are described.
In the present embodiment, when the state transitions, the overall management unit 104 of the server apparatus 111 transmits transition state notification information for notifying a new state.
Each time the control device 112 receives the transition state notification information from the server device 111, the control device 112 extracts the processing method corresponding to the state notified by the transition state notification information from the collection device information 116, and uses the processing method corresponding to the state. Collected data can be processed.

The waveform information storage unit 1050-B stores the waveform information 105-B.
The waveform information 105-B is the same as the waveform information 105 described above.
However, unlike the waveform information 105-A included in the server device 111, only the device data collected by the control device 112 is included.

[A. 2. System operation]
Next, the operation of the control device communication system 100 will be described.
The operation of the control device communication system 100 is divided into preliminary analysis and collection execution (during operation).
The pre-analysis is a phase in which data collected through a trial run is analyzed.
During operation, analysis data is used and data is collected.

[A. 2.1 Outline of operation during preliminary analysis: FIGS. 10 and 11]
An outline of the operation during the pre-analysis will be described with reference to FIGS.
The processing at the time of prior analysis is roughly divided into creation of analysis reference data (waveform information 105, device information 106, state information 107) (S801 to S802), actual data collection (S803 to S808), and actual data analysis (S809). To S813).

When pre-analysis of the control device communication system 100 is started on the server device 111, the waveform creation unit 103-1 analyzes the timing chart 109 and the control program 110 to create state information 107 (S801).
Further, the waveform creation unit 103-1 analyzes the timing chart 109 and the control program 110 to create the waveform information 105 -A and device information 106, and registers them in the related state information 107 (S 802).
That is, the waveform creation unit 103-1 analyzes the timing chart 109 and the control program 110 to predict the data waveform of the collection data of the collection target device in each state for each collection target device, and the predicted data waveform is The waveform information 105-A shown is generated.
Further, the waveform creation unit 103-1 generates device information for each collection target device, but at this time, only the items of the transmission interval, the collection interval, the related state, and the used waveform are specified among the items in FIG. 3. , Processing method, compression reduction rate (%), differential reduction rate (%), comparative reduction rate (%), and average traffic (bit) are blank.
In addition, the waveform creation unit 103-1 acquires the identifier of the collection target device from the device designation unit 120 and registers the collection target device in the state information 107 for each state.
Details of the process for creating analysis reference data will be described later.

Next, the control device communication system 100 is executed to start trial operation.
Here, after the waveform creation unit 103-1 notifies the control device 112 via the server-control device communication unit (server side) 101 of the collection target device, the transmission interval, and the collection interval, collection from the collection target device is performed. An execution start command for instructing to transmit data without performing data amount reduction processing is transmitted to the control device 112 via the server-control device communication unit (server side) 101 (S803).
When the start device and end device described in the state information 107 are not designated as collection target devices, the waveform creation unit 103-1 transmits the start device and end device, and the transmission interval between the start device and end device. The collection interval is notified to the control device 112, and the collected data from the start device and the end device is instructed to be transmitted without performing data amount reduction processing.

On the control device 112, the server-control device communication unit (client side) 113 receives the execution start command (S804).
Next, the control device 112 registers the collection target device, the transmission interval, and the collection interval in the collection device information 116 (S805).
When the start device and the end device are notified from the server apparatus 111, the start device, the end device, the transmission interval, and the collection interval are registered in the collection device information 116.
In the following, for simplicity of explanation, an example in which all the start devices and end devices are included in the collection target device and the control device 112 collects only data from the collection target device will be described.

Next, the data collection unit 114 refers to the collection device information 116 and collects data from the collection target device (S806).
Further, the data processing unit 115 does not perform data amount reduction processing at the time of preliminary analysis.
The data processing unit 115 divides the collected data based on the transmission interval, and passes the collected data to the server-control device communication unit (client side) 113 (S807).
The server-control device communication unit (client side) 113 transmits the collected data to the server apparatus 111 based on the transmission interval registered in the collected device information 116 (S808).

In the server device 111, the server-control device communication unit (server side) 101 continues to receive the collected data until the trial run ends (S809).
Next, the waveform creation unit 103-1 corrects the waveform information 105-A based on the received collected data (S810).
That is, the waveform creation unit 103-1 analyzes the behavior of the start device and the behavior of the end device based on the collected data from the start device and the collected data from the end device, and the collected data from the collection target device is It is determined whether the collected data is collected from the collection target device in the state.
Then, the waveform creation unit 103-1 corrects the waveform information 105-A generated in S802 using the data pattern appearing in the collected data for each state.
Details of the correction process of the waveform information 105-A will be described later.

Next, the processing method designating unit 103-2 performs a total data amount reduction processing method on all the collected data, and enters the data amount reduction rate of each method in the device information 106 (S811).
That is, the processing method designation unit 103-2 appears in the waveform information 105-A modified by the waveform creation unit 103-1, in other words, the collected data for each state determined by the waveform creation unit 103-1. All data amount reduction processing methods are applied to the data pattern for each state, and the data amount reduction rate of each method is calculated.
Then, the processing method designation unit 103-2 enters the data amount reduction rate by the compression method in the column of the compression reduction rate (%) of the device information 106, and sets the data amount reduction rate by the difference method to the difference reduction rate (%). Fill in the column and enter the data reduction rate by the comparison method in the column for comparative reduction rate (%).
Next, the processing method designation unit 103-2 designates a data amount reduction processing method for reducing the data amount of collected data in units of states.
For example, if there is a state where the data waveform of the collected data is a standard data waveform, a data amount reduction processing method that notifies only the difference in the collected data from the standard data waveform to the state. It is possible to specify.
In addition, the processing method specifying unit 103-2 specifies a processing method for the state when the data amount reduction rate for the collected data does not exceed a predetermined threshold value by any of the processing methods. You may make it not.
Details of the processing method designation processing will be described later.
Next, the processing method specifying unit 103-2 enters the specified processing method in the column of the processing method of the device information 106.
Next, the processing method designation unit 103-2 collects information for notifying the collection target device, the processing method for each state, the collection interval, and the transmission interval via the server-control device communication unit (server side) 101. The device information 116 is transmitted to the control device 112, and the waveform information 105-A is transmitted to the control device 112 (S812).
The collection device information 116 transmitted in S812 corresponds to the collection target device notification information and the processing method notification information.

The control device 112 registers the waveform information 105-A transmitted from the server device 111 as the waveform information 105-B.
Further, the control device 112 stores the collected device information 116 transmitted from the server device 111 in the collected device information storage unit 1160 (S813), and the process is terminated.

  In addition, although the operation example about the one control apparatus 112 was demonstrated here, when there exist two or more control apparatuses 112, the server apparatus 111 performs the process of S801-S803 and S809-S812 with respect to each control apparatus 112. Then, each control device 112 performs the processing of S804 to S808.

[A. 2.1.1 Creation of analysis reference data: FIGS. 14 to 17]
As an example of the operation (S801 to S802) when generating analysis reference data in the pre-analysis processing, an operation for generating a waveform of a device signal will be described with reference to FIGS. 14, 15, 16, and 17. explain.

An operation flow for creating a waveform of a device signal registered by a user will be described with reference to FIGS. 15 and 16.
The user registers the collection target device in the control device communication system 100 via the device designation unit 120.
15 to 17, the collection target device is also expressed as a user registration device.
The control device communication system 100 creates a device information template of the user registration device (S1101).
Next, the waveform creation unit 103-1 selects all the timing charts 109 related to the user registration device, and creates a template of the state information 107 from each timing chart 109 (S 1102).
Further, the waveform creation unit 103-1 checks whether the user registration device is an input device or an output device from the timing chart 109 or the control program 110 (D1101).

FIG. 14 is an example (SFC diagram) illustrating the SFC language which is one of the control programs.
In the SFC diagram, a device 1001 (start device 401) that is an input for starting processing, a device 1002 (end device 402) that is an output when processing is ended, and a processing 1003 are described.
Such a control program 110 is analyzed to determine the type of device that is the search target and whether the search target device is the start device 401 or the end device 402 related to the state change.

FIG. 17 shows an example of waveform determination when the device is an input device.
A user registration device (X20) 1201 is an input device for which a waveform is to be determined.
A device A (Y10) 1202 is an output device, and is a device 1002 that is output when the S2 process ends in FIG.
Device B (X10) 1203 is an input device 1001 indicating the start of the S2 process.

When the user registration device is an input device (D1101), in the selected timing chart 109, a device that becomes an input for starting the change of the user registration device is searched from all the timing charts 109 and the control program 110 ( S1103).
A device that outputs the device A (Y10) 1002 (device A (Y10) 1202), which is the device obtained as a search result, is searched from the timing chart 109 and the control program 110 (S1104).
A device B (X10) 1003 (device B (X10) 1203) and a device A (Y10) 1002 (device A (Y10) 1202) that output device signals A (Y10) 1002 (device A (Y10) 1202). ) And the user registration device (X20) are arranged in time series (S1105 and FIG. 17).
Temporary waveform information 105-A is defined from the time when device A (Y10) 1002 is output to the time when device B (X10) 1003 starts to change (S1106 and FIG. 17).

  The trend data of the waveform information 105-A is obtained by correcting the waveform by performing the waveform data creation process (S1105 to S1106) again using the actual data when the actual data is collected during the test run, and the corrected trend data is obtained. It is assumed that the waveform information 105-A is used in actual production.

Next, the waveform creation unit 103-1 registers the generated temporary waveform information 105-A in the device information 106 of the user registration device (S1107).
In addition, the waveform creation unit 103-1 continues a series of processes (S1103 to S1107) until the waveform information 105-A of all timing charts 109 is created (D1102).

If it is determined in D1101 that the user registration device is an output device, it is confirmed from all timing charts 109 and the control program 110 whether the user registration device is an output for ending the state (D1103).
Only when the output is for the end of the state (YES in D1103), the waveform creation unit 103-1 registers as the end device 402 of all the state information 107 for which the user registration device is an output (S1108). .

In addition, the waveform creation unit 103-1 searches the entire timing chart 109 and the control program 110 to determine whether the user registration device is an input for starting a state regardless of the type of the user registration device (D 1104). .
Only when the input is for starting a state, the waveform creation unit 103-1 registers the user registration device as the start device 401 of all the state information 107 that are input (S1109).
In addition, the waveform creation unit 103-1 registers the user registration device as the collection target device 403 for all related state information 107 other than the state information 107 (S <b> 1110), and the process ends.

[A. 2.2 Outline of operations when collecting and stopping: FIGS. 12 and 13]
The outline of the operation at the time of executing and stopping the collection will be described with reference to FIGS.
The processing at the time of execution of execution consists of collected data processing (S904 to S906) on the control device 112 side and data restoration / analysis processing (S907 to S911) on the server device 111 side.
The two processes are independent and are performed in parallel after the start.
The stop process (S912 to S913) occurs as an interrupt process when the user stops the control device communication system 100.

The control device communication system 100 is executed and data collection is started.
The server-control device communication unit (server side) 101 transmits an execution start command to the control device 112 (S901).
In the control device 112, the server-control device communication unit (client side) 113 receives the execution start command (S902).
In the server device 111, the overall management unit 104 monitors the state transition, and transmits a transition state notification information every time a new state arrives, and the control device 112 receives the transition state notification information.
The control device 112 refers to the collection device information 116, the data collection unit 114 indicates the collection target device, the data processing unit 115 indicates the transmission interval for each device and the processing method for each state (the state notified by the transition state notification information). Corresponding processing method) is acquired (S903).
The data collection unit 114 collects data from the collection target device (S904).
The data processing unit 115 processes the collected data. The processed data is transferred to the server-control device communication unit (client side) 113 (S905).
In this example, the data amount reduction processing is sequentially performed every time data is collected, and the processing data is completed when the data processing processing for the transmission interval is completed. However, after the data for the transmission interval is accumulated in advance. The accumulated data may be processed.
Details of the processing will be described later.
Next, the server-control device communication unit (client side) 113 transmits the processed data to the server device 111 (S906).
The control device 112 repeats a series of processing (S904 to S906) until the server-control device communication unit (client side) 113 receives a stop command from the server device 111 (D902).

In the server device 111, the server-control device communication unit (server side) 101 waits for and receives data from the control device 112 (S907).
The data restoration unit 102 restores the collected data (S908).
That is, when the collected data is processed, the data restoration unit 102 restores the data before processing by applying a restoration method corresponding to the corresponding processing method.
Then, the data restoration unit 102 updates the collected data restored to the database 108 (S909).
In addition, the processing method designating unit 103-2 of the data analysis unit 103 analyzes the restored data, and performs a processing method change determination (S910).
The specific device monitoring unit 104-1 and the multiple device monitoring unit 104-2 monitor the content of the restored collected data and monitor the update status of the designated device (S911).
Details of the monitoring will be described later.
The server device 111 repeats a series of processes (S907 to S911) until the user stops the control device communication system 100 (D901).

When the user stops the control device communication system 100 (YES in D901), the server-control device communication unit (server side) 101 transmits a stop command to the control device 112 (S912).
Then, all the processes related to the control device communication system 100 in the server device 111 are stopped (S913).
When the server-control device communication unit (client side) 113 receives the stop command (YES in D902), the processing in the control device 112 is stopped (S914).
The server-control device communication unit (client side) 113 stops transmission.
Further, the data collection unit 114 stops collecting data from the device.
Further, the data processing unit 115 stops the processing.
When the process in the server apparatus 111 and the process in the control device 112 are stopped, the process ends.

[A. 2.2.1 Collected Data Processing Operation: Fig. 18]
Of the collection execution processing, operations (S904 to S906) at the time of collecting data processing on the control device 112 side will be described with reference to FIG.
The collected data processing process includes a collecting process by the data collecting unit 114, a data processing process by the data processing unit 115, and a transmission process by the server-control device communication unit (client side) 113.
The three processes are independent and are performed in parallel after the start.

After receiving the execution start command, the data collection unit 114 collects data of the collection target device registered in the collection device information 116 (S1301).
Collected data is collected according to the collection interval.
Then, the data collection unit 114 attaches a time stamp to the collected data and stores it in the control device 112 (S1302).
The data collection unit 114 repeats the above operations (S1301 to S1302) until a stop command is received.

The data processing unit 115 acquires the collected data stored by the data collecting unit 114 (S1303).
Next, the data processing unit 115 processes the collected data according to the data amount reduction processing method described in the collection device information 116 (S1304).
The data amount reduction processing method selected by the data processing unit 115 is a processing method corresponding to the state notified by the transition state notification information from the server device 111.
The data processing unit 115 repeats a series of processes (S1303 to S1304) until the processed data is accumulated for the transmission period described in the collection device information 116 (D1301).
If the transmission period is accumulated (YES in D1301), the data processing unit 115 passes the processed data to the server-control device communication unit (client side) 113 (S1305).
The data processing unit 115 repeats the above operations (S1303 to S1305) until a stop command is received.

The server-control device communication unit (client side) 113 transmits the received processed data to the server device 111 (S1306).
The server-control device communication unit (client side) 113 repeats the above operation (S1306) until a stop command is received.

[A. 2.2.2 Operation of collected data restoration / analysis]
Among the collection execution processing, the data restoration processing by the data restoration unit 102 is restored by a restoration algorithm according to the algorithm of the processing method performed by the control device 112.
As will be described later, since the overall management unit 104 determines the state transition timing, the data restoration unit 102 is in which state the collected data input from the server-control device communication unit (server side) 101 is the collected data. Is notified from the overall management unit 104.
Then, the data restoration unit 102 acquires the processing method of each collection target device in the state notified from the overall management unit 104 from the device information 106 of each collection target device, and collects the collected data from each collection target device. Restore with the restoration method corresponding to the processing method.

  Of the collection execution processing, the data analysis processing on the server device 111 side is divided into monitoring of restored data and switching of the collected data processing method.

[A. 2.2.2.1 Operation of monitoring restored data]
First, the operation of monitoring restored data will be described.
The specific device monitoring unit 104-1 includes, in the collected data restored by the data restoration unit 102, a device designated by the user using the device designation unit 120 among the collection target devices (hereinafter referred to as a monitoring target device) or state information. A change in the device value of the device designated as the start / end device in 107 is monitored.
When there is a change in the behavior of the monitoring target device, the specific device monitoring unit 104-1 notifies the change in the behavior of the monitoring target device by a method specified by the user (for example, the device management application ( Send an error to (not shown)).
If there is a specified change in the start / end device value (for example, the moment when the end device is turned ON), the specific device monitoring unit 104-1 regards the state as transitioned, and to which state it has transitioned Enter the analysis.

In the collected data restored by the data restoration unit 102, the multiple device monitoring unit 104-2 includes a combination of device values of a plurality of monitoring target devices designated by the user, and a plurality of devices designated as start devices in the state information 107. Monitor changes in device values.
The multiple device monitoring unit 104-2 synchronizes the device values of the multiple monitoring target devices with time, and monitors the update state.
When there is a change in the behavior of a plurality of monitoring target devices designated by the user, a change in the behavior of the monitoring target device is notified by a method designated by the user.
In addition, when there is a specified change in the value of the start device (for example, the moment when device A is turned on and device B is turned off), it is considered that the state has changed, and which state has been changed to Start analysis.

When the change of the device value registered as the end device 402 can be confirmed in the state information 107 and the overall management unit 104 determines that the state transition has occurred, the current state of the device designated as the start device 401 of the state information 107 The current state (new state) is determined from the state (value).
Thereafter, the overall management unit 104 transmits transition state notification information for notifying the current state (new state) to the control device 112.
Note that the state transition analysis process is implemented by existing technology, and thus detailed description thereof is omitted.

[A. 2.2.2.2 Operation of switching collected data processing method: Fig. 19]
Next, as an example of the processing method switching (S910) operation when the state has not changed, an operation when the processing method specifying unit 103-2 mechanically performs switching will be described with reference to FIG.

The processing method designation unit 103-2 monitors the data amount reduction rate of the collected data (S1401).
Specifically, the processing method designation unit 103-2 inputs the collected data before the restoration by the data restoration unit 102 (collected data processed by the current method (first priority)) and the collected data after the restoration. Apply the processing method with the second highest reduction rate to the collected data after restoration (second priority) to process the collected data, and collect the data before restoration (current method (first priority)). The data reduction rate in the collected data processed in the second step) and the data reduction rate in the collected data by the processing method having the second highest reduction rate (second priority).
Then, the processing method designation unit 103-2 has a data reduction rate of the collected data using the current method (first priority) higher than the data reduction rate of the method with the second highest reduction rate (second priority). It is confirmed whether it is low (D1401).
If the data reduction efficiency of the current method (first priority) is the same or higher than the data reduction rate of the method with the second highest reduction rate (second priority) (NO in D1401), the processing method is changed. Quit.
On the other hand, if the data reduction efficiency of the current method (first priority) is lower (YES in D1401), the collection device information 116 of the control device 112 is changed to the method with the second highest reduction rate (second priority). Switch.
That is, the processing method designating unit 103-2 generates processing method switching instruction information for instructing to switch the processing method for the collected data of the current state to the processing method with the second priority, and the server-control device communication unit ( Server side) 101 to the control device 112, and the control device 112 processes the collected data by the second priority processing method.

And the processing method designation | designated part 103-2 collects data for a while, and the data reduction rate of the collection data (collected data processed by the 2nd priority method) after switching a processing method reduces to the 3rd. It is confirmed whether the rate is lower than the high rate method (priority third) (D1402).
The procedure for calculating the data reduction rate of the collected data after switching and the data reduction rate of the collected data using the method with the third highest reduction rate (priority third) The procedure is the same as in the second method.
When the data reduction efficiency of the collected data after switching (collected data processed by the second priority method) is the same as or higher than the data reduction rate of the third highest reduction ratio (priority third) (D1402) NO) is ended without changing (the second priority method remains).
On the other hand, when the data reduction efficiency of the collected data after switching (collected data processed by the second priority method) is low (YES in D1402), the processing method designating unit 103-2 performs the processing on the collected data. Then, trial calculation is performed with the method with the highest data reduction rate (first priority method), and the reduction rate is held (S1403).

When the data reduction rate of the estimated reduction rate (first priority method) is the same as or higher than the current reduction rate (second priority method) (NO in D1403), the processing method designation unit 103-2 Switches the collected device information 116 of the control device 112 to a method with the highest reduction rate (first priority method) (S1405).
That is, the processing method designating unit 103-2 generates processing method switching instruction information for instructing to switch the processing method for the collected data of the current state to the processing method having the first priority, and the server-control device communication unit ( The server side) 101 transmits the data to the control device 112, and the control device 112 processes the collected data using the first priority processing method.
On the other hand, when the data reduction rate of the estimated reduction rate (first priority method) is lower than the current reduction rate (second priority method) (YES in D1403), the processing method designation unit 103-2 Then, the collection device information 116 of the control device 112 is switched to the method with the third highest reduction rate (priority third) (S1404).
In other words, the processing method designating unit 103-2 generates processing method switching instruction information for instructing to switch the processing method for the collected data of the current state to the processing method with the third priority, and the server-control device communication unit ( The server side) 101 transmits the data to the control device 112, and the control device 112 processes the collected data by the third priority processing method.
The processing method designating unit 103-2 repeats the above operation until the data reduction efficiency is improved, and switches the method to the data processing method with the lowest priority.
Further, when the data reduction rate after switching is lower than the last processing method (YES in D1404), the processing method specifying unit 103-2 switches the collection device information 116 of the control device 112 without processing (S1406), and processing Exit.
That is, the processing method designation unit 103-2 generates processing method switching instruction information for instructing switching to non-processing, and transmits the processing method switching instruction information from the server-control device communication unit (server side) 101 to the control device 112. To send raw collected data.

  When the control device 112 receives the processing method switching instruction information from the server device 111 while a certain state is continuing, that is, while collecting the collected data of the state (S1402, S1404, S1405, S1406), the processing device switching instruction The data amount reduction processing method of the collected data processed after the reception of information is switched to the new specified data amount reduction processing method, and the collected data processed by the new specified data amount reduction processing method is transmitted to the server device 111.

The above processing method switching is an example.
In addition, when the data volume reduction rate deteriorates, trial calculation using all processing methods is performed on the collected data (the processing of S1403 is performed for all methods), and the optimum method can be selected from the results. I do not care.
Further, the priority of the processing method and the switching method may be specified by the user.
In the above description, the collection device information 116 illustrated in FIG. 9 is transmitted from the server apparatus 111 to the control device 112 in the preliminary analysis stage, and the current state is transmitted from the server apparatus 11 to the control apparatus 112 when data is collected. The control device 112 has specified the processing method corresponding to the state notified from the server device 111 from the collection device information 116 and processed the collected data by the specified processing method.
On the other hand, at the pre-analysis stage, without collecting the collected device information 116 of FIG. 9, at the time of data collection, the server device 11 changes the processing method in the current state to the control device 112 for each device at the time of state transition. The control device 112 may process the collected data by the processing method notified from the server device 111.

[A. 3 Effect]
As described above, static data (timing chart 109, etc.) and actual data are correlated and analyzed from the relationship of input / output devices to determine the separation of routine processing mechanically and monitor the entire state after operation. Therefore, it is possible to always designate an optimum processing method, and the effect that the amount of transmission data can be reduced is obtained.

As described above, in the present embodiment,
Means for transmitting and receiving data between the server device and the control device;
Means for restoring machining data sent from the control device;
A means of analyzing the collected data;
A means of managing the trends of all collected data;
Waveform information describing trends in collected data,
Device information describing the device and its specification waveform,
State information describing device information related to data collection for a specific period of time,
A database to store the collected data;
A server device comprising:
Means for transmitting and receiving data between the control device and the server device;
Means for collecting data from the controlled device;
Means for processing the collected data to reduce the amount of data;
Means for managing the timing of data transmission;
Waveform information describing trends in collected data,
Collection device information that describes the collected data information,
Comprising control equipment,
A communication system for control equipment that can analyze collected data with a server device and select a data amount reduction processing method that matches the data trend has been described.

Embodiment 2. FIG.
[B. 1. Second embodiment System configuration diagram: FIGS. 20 and 21]
20 and 21 are configuration diagrams showing the second embodiment.
FIG. 20 shows a configuration example of the server apparatus 111 according to the present embodiment. The difference from FIG. 2 is that a transmission timing distribution control unit 104-3 is added to the overall management unit 104, and the overall state configuration This is the addition of FIG.
FIG. 21 shows a configuration example of the control device 112 according to the present embodiment. The difference from FIG. 3 is that a transmission timing management unit 117 is added.

In FIG. 20, the transmission timing distribution control unit 104-3 calculates the communication amount of all the devices 200 and devices, and distributes the data transmission timing.
More specifically, the transmission timing distribution control unit 104-3 calculates the total communication amount in time series from the device information 106 and the entire state 130.
A device 200 or a device that transmits data in a time zone with a high communication load is extracted, a schedule in which the data transmission timing is dispersed is generated, and the data transmission timing is adjusted according to the generated schedule.
The transmission timing distribution control unit 104-3 is used not only for preliminary analysis before driving but also for analysis during driving.

The overall state configuration diagram 130 is data describing information associating the state information 107.
The overall state configuration diagram 130 is a list of the states of devices controlled by the control device, with the time axis aligned, based on the input / output relationship of the collected data during the trial run and the state information 107.
The transmission timing distribution control unit 104-3 searches which state is simultaneously generated from the overall state configuration diagram 130 and calculates the communication amount.

The transmission timing management unit 117 adjusts the transmission timing of the device 200 or the device.
The adjustment is performed at the transmission timing, and the transmission cycle and the collection cycle remain unchanged.
When receiving a transmission timing adjustment command from the server apparatus 111, the transmission timing management unit 117 adjusts the data transmission timing by controlling the data processing unit 115 and adjusting the separation interval of the processed data.

  Since these elements are the same as those in FIGS. 2 and 3, the description thereof is omitted.

[B. 2. Second Embodiment System Operation]
Next, the operation in the case where the control device communication system 100 uses the transmission timing distribution control unit 104-3 to distribute the transmission timing will be described.
Transmission timing distribution processing is divided into timing analysis and timing adjustment.
Since operations other than the transmission timing distribution processing are the same as those in the first embodiment, a description thereof will be omitted.

[B. 2.1 Transmission Timing Analysis: FIGS. 22 to 23]
Processing during timing analysis will be described with reference to FIGS.
S1601 and S1602 in FIG. 22 and S1701 to S1703 in FIG. 23 are timing analysis processes. Timing analysis is performed during pre-analysis and during collection.

As shown in FIG. 22, since the transmission timing distribution control unit 104-3 performs trial calculation using actual data, after the data collection during the trial operation, the processing of the processing method designating unit 103-2 is completed (that is, , After S801 to S811).
The transmission timing distribution control unit 104-3 calculates the data amount after processing based on the collected data and the entire state configuration diagram 130 arranged in time series, and calculates the total communication amount (S1601).
The transmission timing distribution control unit 104-3 adjusts and holds the transmission start timing so that the transmission timing of devices with a large amount of communication is distributed (transmission timing for each device 200 or each device is shifted) (S1602).
Thereafter, the processing of S812 and S813 is performed.
In addition, since the process of S801-S811, S812, and S813 is the same as what was demonstrated in Embodiment 1, description is abbreviate | omitted.

Further, at the time of executing the collection, as shown in FIG. 23, first, the server apparatus 111 executes the control device communication system 100 and collects data.
The transmission timing distribution control unit 104-3 transmits an execution start command to the server-control device communication unit (server side) 101 in accordance with the held transmission start timing (S1701).
The server-control device communication unit (server side) 101 transmits an execution start command to the control device 112 (S1702).
In addition, after the processing of S902 to S911 is performed, the transmission timing distribution control unit 104-3 adjusts and holds the transmission start timing so that the transmission timings of devices with a large amount of communication are distributed (S1703).
Thereafter, the processing of D901 to S914 is performed.
In addition, since the process of S902-S911 and D901-S914 is the same as what was demonstrated in Embodiment 1, description is abbreviate | omitted.

Timing analysis at the time of prior analysis is calculated at an ideal time based on the overall state configuration diagram 130, but during actual collection, a deviation occurs in data reception timing due to a communication delay or the like.
Therefore, in the timing analysis during collection, the actual arrival time of collected data is monitored, and if the interval seems to fluctuate, recalculation is performed to adjust the transmission timing.

[B. 2.2 Transmission timing adjustment]
Next, processing during timing adjustment will be described with reference to FIGS. 24 and 25. FIG.
The timing adjustment can be performed both at the start of collection and at the time of collection execution, but the operation is different.

[B. 2.2.1 Transmission timing adjustment at the start of collection: Fig. 24]
First, timing adjustment of a plurality of devices will be described with reference to FIG. 24 as an example of operation when transmission timing is adjusted at the start of collection.
The transmission period of the control device 112 is 100 ms, and the interval for adjusting data is 30 ms.
The transmission timing adjustment is realized by the transmission timing distribution control unit 104-3 transmitting a start command by shifting the transmission start time for each device.

The transmission timing distribution control unit 104-3 transmits a data transmission command to the control device 112-A. (S1801)
The control device 112-A starts data collection (S1804). Thereafter, data is transmitted every 100 ms.
The transmission timing distribution control unit 104-3 transmits a data transmission command to the control device 112-B after a specified data adjustment interval (30 ms later) after transmitting the start command to the control device 112-A (S1802).
The control device 112-B starts data collection (S1805). Thereafter, data is transmitted every 100 ms.
Transmission timing distribution control unit 104-after a specified data adjustment interval after transmitting a start command to control device 112 -B (30 ms later, 60 ms after first transmitting the start command to control device 112 -A) 3 transmits a data transmission command to the control device 112-C and the control device 112-D (S1803).
The control device 112-C and the control device 112-D start data collection (S1806 to S1807). Thereafter, data is transmitted every 100 ms.

[B. 2.2.3 Transmission timing adjustment during collection: Fig. 25]
Next, as an example of an operation when adjusting the transmission timing during collection execution, adjustment of the transmission timing of the control device 112 that performs data transmission at the same timing will be described with reference to FIG.

The transmission timing distribution control unit 104-3 transmits a data transmission command to the control device 112-A and the control device 112-B (S1901).
The control device 112-A and the control device 112-B start data collection (S1902-A, S1902-B).
Thereafter, the control device 112-A and the control device 112-B transmit data every 100 ms.
The transmission timing distribution control unit 104-3 analyzes during execution to analyze the traffic.
As a result of the analysis, if it is determined that the traffic load is large, a transmission interval adjustment command is transmitted to the control device 112-B so as to delay the transmission for 30 ms (S1903).
The control device 112-B receives the transmission interval adjustment command (S1904).
The transmission timing management unit 117 of the control device 112-B transmits data according to the previous transmission interval once after receiving the transmission interval adjustment command (S1905).
The transmission timing management unit 117 instructs the data processing unit 115 to transmit data for the adjustment time (30 ms). The data processing unit 115 processes data for 30 ms and passes the data to the server-control device communication unit (client side) 113.
The server-control device communication unit (client side) 113 transmits data 30 ms after the previous transmission (S1906).
Thereafter, the control device 112-B transmits data every 100 ms, which is a specified transmission interval.
Note that the timing adjustment interval (numerical value 30 ms in FIGS. 24 and 25) is an example, and is not limited to this.
The interval at which the timing does not overlap may be calculated mechanically according to a certain algorithm, or may be designated by the user.

[B. 3. Embodiment 2 Effects]
As described above, it is possible to collect data because it is possible to use the circuit on average by adjusting the data transmission timing in advance by adjusting the total data traffic and adjusting the transmission timing as needed during execution. The effect of increasing the amount of data can be obtained.

As described above, in the present embodiment,
A means for distributing the data transmission timing for each device by calculating the total communication amount to the server device,
A communication system for control equipment provided with the above has been described.

Finally, a hardware configuration example of the server device 111 and the control device 112 shown in the first and second embodiments will be described.
FIG. 26 is a diagram illustrating an example of hardware resources of the server device 111 and the control device 112 illustrated in the first and second embodiments.
The configuration of FIG. 26 is merely an example of the hardware configuration of the server device 111 and the control device 112, and the hardware configuration of the server device 111 and the control device 112 is not limited to the configuration described in FIG. Other configurations may be used.

In FIG. 26, the server device 111 and the control device 112 include a CPU 911 (also referred to as a central processing unit, a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, and a processor) that executes a program.
The CPU 911 is connected to, for example, a ROM (Read Only Memory) 913, a RAM (Random Access Memory) 914, a communication board 915, a display device 901, a keyboard 902, a mouse 903, and a magnetic disk device 920 via a bus 912. Control the hardware.
Further, the CPU 911 may be connected to an FDD 904 (Flexible Disk Drive), a compact disk device 905 (CDD), a printer device 906, and a scanner device 907. Further, instead of the magnetic disk device 920, a storage device such as an SSD (Solid State Drive), an optical disk device, or a memory card (registered trademark) read / write device may be used.
The RAM 914 is an example of a volatile memory. The storage media of the ROM 913, the FDD 904, the CDD 905, and the magnetic disk device 920 are an example of a nonvolatile memory. These are examples of the storage device.
The “˜storage unit” described in the first and second embodiments is realized by the RAM 914, the magnetic disk device 920, and the like.
A communication board 915, a keyboard 902, a mouse 903, a scanner device 907, an FDD 904, and the like are examples of input devices.
The communication board 915, the display device 901, the printer device 906, and the like are examples of output devices.

As shown in FIG. 1, the communication board 915 is connected to a network.
For example, the communication board 915 may be connected to a LAN (local area network), the Internet, a WAN (wide area network), a SAN (storage area network), or the like.

The magnetic disk device 920 stores an operating system 921 (OS), a window system 922, a program group 923, and a file group 924.
The programs in the program group 923 are executed by the CPU 911 using the operating system 921 and the window system 922.

The RAM 914 temporarily stores at least part of the operating system 921 program and application programs to be executed by the CPU 911.
The RAM 914 stores various data necessary for processing by the CPU 911.

The ROM 913 stores a BIOS (Basic Input Output System) program, and the magnetic disk device 920 stores a boot program.
When the server device 111 and the control device 112 are activated, the BIOS program in the ROM 913 and the boot program in the magnetic disk device 920 are executed, and the operating system 921 is activated by the BIOS program and the boot program.

  The program group 923 stores a program for executing the functions described as “˜unit” (except for “˜storage unit” in the following) and “˜means” in the description of the first and second embodiments. Yes. The program is read and executed by the CPU 911.

In the file group 924, in the description of the first and second embodiments, “determination of”, “determination of”, “determination of”, “designation of”, “determination of”, “generation of” ”,“ Create ”,“ Compare ”,“ Update ”,“ Set ”,“ Register ”,“ Select ”,“ Get ”,“ Enter ”, Information, data, signal values, variable values, and parameters indicating the results of the processing described as “output of” are stored as items of “˜file” and “˜database”.
The “˜file” and “˜database” are stored in a recording medium such as a disk or a memory.
Information, data, signal values, variable values, and parameters stored in a storage medium such as a disk or memory are read out to the main memory or cache memory by the CPU 911 via a read / write circuit.
The read information, data, signal value, variable value, and parameter are used for CPU operations such as extraction, search, reference, comparison, calculation, calculation, processing, editing, output, printing, and display.
Information, data, signal values, variable values, and parameters are stored in the main memory, registers, cache memory, and buffers during the CPU operations of extraction, search, reference, comparison, calculation, processing, editing, output, printing, and display. It is temporarily stored in a memory or the like.
In addition, the arrows in the flowcharts described in the first and second embodiments mainly indicate input / output of data and signals.
Data and signal values are recorded on a recording medium such as a memory of the RAM 914, a flexible disk of the FDD 904, a compact disk of the CDD 905, a magnetic disk of the magnetic disk device 920, other optical disks, a mini disk, and a DVD.
Data and signals are transmitted online via a bus 912, signal lines, cables, or other transmission media.

Further, in the description of the first and second embodiments, what is described as “to part” and “to means” may be “to circuit”, “to device”, and “to device”. It may be “˜step”, “˜procedure”, “˜processing”.
In other words, the processing of the server device 111 and the control device 112 can be understood as a data processing method by the steps, procedures, and processes shown in the flowcharts described in the first and second embodiments.
In addition, what is described as “˜unit” and “˜means” may be realized by firmware stored in the ROM 913.
Alternatively, it may be implemented only by software, only by hardware such as an element, a board, or wiring, by a combination of software and hardware, or by a combination of firmware.
Firmware and software are stored as programs in a recording medium such as a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, and a DVD.
The program is read by the CPU 911 and executed by the CPU 911.
That is, the program causes the computer to function as “˜unit” and “˜means” of the first and second embodiments. Alternatively, the procedures and methods of “to part” and “to means” of the first and second embodiments are executed by a computer.

As described above, the server device 111 and the control device 112 described in the first and second embodiments are displayed as output devices such as a CPU as a processing device, a memory as a storage device, a magnetic disk, a keyboard as an input device, a mouse, a communication board, and the like. A computer including a device, a communication board, and the like.
As described above, the functions indicated as “˜unit” and “˜means” are realized by using these processing devices, storage devices, input devices, and output devices.

  DESCRIPTION OF SYMBOLS 100 Communication apparatus for control apparatuses, 101 Server-control apparatus communication part (server side), 102 Data restoration part, 103 Data analysis part, 103-1 Waveform creation part, 103-2 Processing method designation | designated part, 104 Whole management part, 104-1 Specific device monitoring unit, 104-2 Multiple device monitoring unit, 104-3 Transmission timing distribution control unit, 105 Waveform information, 106 Device information, 107 State information, 108 Database, 109 Timing chart, 110 Control program, 111 Server device, 112 control device, 113 server-control device communication unit (client side), 114 data collection unit, 115 data processing unit, 116 collection device information, 117 transmission timing management unit, 120 device designation unit, 130 overall state configuration Figure 200 instrument, 1050 waveform information storage unit 1060 device information storage section, 1070 state information storage unit, 1090 operation procedure information storage unit, 1160 collects device information storage unit.

Claims (18)

A management apparatus connected to a data collection apparatus, managing a plurality of devices via the data collection apparatus, and receiving device data collected by the data collection apparatus from the data collection apparatus;
A state information storage unit that stores state information that defines a state that is a logical division of an operation procedure of the plurality of devices;
A device designating unit for designating a data collection target device among the plurality of devices as a collection target device;
A collection instruction unit that instructs the data collection device to transmit the collected data from the collection target device without performing data amount reduction processing to reduce the data amount;
A collection data receiving unit that receives collection data from the collection target device transmitted from the data collection device based on an instruction from the collection instruction unit;
A collected data judging unit for judging in which state the collected data from the collection target device received by the collected data receiving unit is the collected data collected from the collection target device based on the state information; ,
Applying each of a plurality of data amount reduction processing methods to the collected data received from the collection target device received by the collection data receiving unit, and specifying a data amount reduction processing method for each state; ,
Notify the data collection device for the specified data amount reduction processing method specified by the processing method specifying unit for each state, and process the collected data to the data collection device for each state using the specified data amount reduction processing method And a data processing instruction unit that instructs to transmit the collected data processed by the designated data amount reduction processing method. The processing method designating part is
The management apparatus according to claim 1, wherein a data amount reduction processing method that maximizes the degree of data amount reduction as a result of applying each of the plurality of data amount reduction processing methods to the collected data is specified. As a result of applying each of the plurality of data amount reduction processing methods to the collected data, the processing method designating unit has a predetermined degree of data amount reduction with respect to the collected data in any state by any data amount reduction processing method. The management apparatus according to claim 2, wherein when the threshold value is not exceeded, the data amount reduction processing method is not designated for the state. The management device further includes:
Analyzing the collected data from the collection target device received by the collected data receiving unit, and for each state, having a data waveform extraction unit that extracts a data waveform of the collected data from the collection target device;
The data processing instruction unit
The specified data amount reduction processing method is notified to the data collection device for each state, and the data waveform extracted by the data waveform extraction unit is notified for each state. The management apparatus in any one. The data waveform extraction unit
Before receiving the collection data from the collection target device, analyze the timing chart showing the operation of the collection target device, predict the data waveform of the collection data from the collection target device for each state,
When the collected data from the collection target device is received by the collected data receiving unit, the collected data from the collection target device received by the collected data receiving unit is obtained using a data waveform predicted for each state. 5. The management apparatus according to claim 4, wherein the management apparatus analyzes and extracts a data waveform of collected data from the collection target device for each state. The processing method designating part is
When there is a state where the data waveform of the collected data is a standard data waveform, a data amount reduction processing method for notifying the state of only the difference between the collected data and the standard data waveform is specified. The management apparatus according to any one of claims 1 to 5, wherein The state information storage unit
For each state, state information that defines the start and end of the state in association with the behavior of one of the devices is stored.
The collection instruction unit
For the data collection device, the collected data from the collection target device and the collected data from the related device associated with the start and end of each state are not subjected to data amount reduction processing for reducing the data amount. Tell them to send,
The collected data receiving unit
Receiving collected data from the device to be collected and collected data from the related device;
The collected data judgment unit
Based on the state information and the collected data from the related device, the behavior of the related device is analyzed, and in which state the collected data from the collection target device is the collected data collected from the collection target device. The management apparatus according to claim 1, wherein the management apparatus determines. The management device further includes:
The state transition is monitored based on the collected data received from the data collection device, and each time the state transitions, the transition state notification information for notifying the transition destination state is generated, and the generated transition state notification information is used as the data. The management apparatus according to claim 1, further comprising a transfer destination state notification unit that transmits to the collection apparatus. The collected data receiving unit
Collected data from the collection target device processed by the specified data amount reduction processing method is received from the data collection device,
The management device further includes:
A data restoration unit that restores collected data before processing by applying a restoration method corresponding to the designated data amount reduction processing method to the collected data processed by the specified data amount reduction processing method. The management apparatus according to claim 1, comprising: a management apparatus according to claim 1. The device designation unit is
Of the specified collection target devices, specify the devices to be monitored as monitored devices,
The management device further includes:
Device monitoring that analyzes the collected data received by the collected data receiving unit to monitor the behavior of the monitored device and notifies the change in the behavior of the monitored device when the behavior of the monitored device changes The management device according to claim 1, further comprising a management unit. The collected data receiving unit
Collected data from the collection target device processed by the specified data amount reduction processing method is received from the data collection device,
The processing method designating part is
Compare the data amount reduction degree in the specified data amount reduction processing method with the data amount reduction degree in other data amount reduction processing methods for the collected data from the collection target device processed by the specified data amount reduction processing method. When the data amount reduction degree in the specified data amount reduction processing method is lower than the data amount reduction degree in the other data amount reduction processing method, the other data amount reduction processing method is newly added to the state. Specified as a specified data amount reduction processing method,
The data processing instruction unit
11. The data collection device is instructed to use a new designated data amount reduction processing method specified by the processing method specifying unit for processing the collected data of the corresponding state. The management apparatus in any one. The management device further includes:
When collection data from two or more collection target devices is transmitted from the data collection device, a schedule in which the transmission timing of the collection data from the data collection device is distributed is generated, and the data collection device is transmitted according to the generated schedule. The management apparatus according to claim 1, further comprising a transmission timing distribution control unit that instructs data collection and distributes the transmission timing of the collected data from the data collection apparatus. The management device is connected to a plurality of data collection devices,
The management device further includes:
A schedule in which transmission timings of collected data from the plurality of data collection devices are distributed is generated, data collection is instructed to the plurality of data collection devices according to the generated schedule, and collection data is transmitted from the plurality of data collection devices The management apparatus according to claim 1, further comprising a transmission timing distribution control unit that distributes timing. A data collection device that is connected to a management device that manages a plurality of devices, collects data of at least some of the plurality of devices, and transmits the collected device data to the management device. ,
Applies to the data collected from the collection target device for each state that is a logical division of the operation procedure of the plurality of devices and the collection target device notification information for notifying the data collection target device as the collection target device Processing method notification information for notifying the data amount reduction processing method to be designated as the specified data amount reduction processing method, and a receiving unit for receiving state determination information for determining state transition from the management device,
A data collection unit that collects data from the collection target device based on the collection target device notification information;
The state determination information is used to determine the state transition, and the collected data from the collection target device corresponding to the period from the start to the end of the state is processed by the designated data amount reduction processing method specified for the state. A data processing unit to process,
A data collection apparatus comprising: a transmission unit configured to transmit collected data from the collection target device processed by the data processing unit by a specified data amount reduction processing method for each state to the management apparatus. The receiver is
When a plurality of collection target devices are designated by the management apparatus, for each collection target device, the collection target device notification information and the processing method notification information are received,
The data collection unit
Based on the collection target device notification information, collect data from each collection target device,
The data processing unit
The state transition is determined using the state determination information, and the collection data from each collection target device corresponding to the period from the start to the end of the state is designated for each collection target device. The data collection device according to claim 14, wherein the data collection device performs processing by a data amount reduction processing method. The receiver is
There is a case in which processing method switching instruction information for instructing to process the collected data by switching to a new specified data amount reduction processing method different from the specified data amount reduction processing method notified by the processing method notification information for a predetermined state may be received. Yes,
The data processing unit
When the processing unit switching instruction information is received by the receiving unit, the data amount reduction processing method of the collected data corresponding to the state instructed by the processing method switching instruction information is changed to the new designated data amount reduction processing method. The data collection device according to claim 14, wherein the data collection device is switched to. The data processing unit
After the processing method switching instruction information is received by the receiving unit while the collected data corresponding to the predetermined state is being collected by the data collecting unit, the processing method switching instruction information is received The data collection device according to claim 16, wherein the data amount reduction processing method of the collected data to be processed into a new designated data amount reduction processing method is switched. The receiver is
Transition state notification information for notifying the destination state every time the state transitions is received as the state determination information from the management device,
The data processing unit
18. The data collection device according to claim 14, wherein a transition to a state notified by the transition state notification information is determined based on reception of the transition state notification information.

Images