JP2021125038A - Collecting device, management device, communication device, and control method - Google Patents

Abstract

To provide a collecting device, a management device, a communication device, and a control method that suppress hindrance of the appropriate operation of an industrial machine.SOLUTION: In a communication system, a collecting device 10 which provides data acquired from an industrial machine to a management device includes an acquisition unit 11 which acquires encryption support information being support information of which a part or whole is encrypted and in which first information used for acquiring data from a machine 5A or the like and second information used for providing the acquired data to the management device 20 are associated with each other; a decrypting unit 12 for obtaining the support information by decrypting the encryption support information acquired by the acquisition unit 11, and a providing unit 14 which adds second information to the data acquired from the machine 5A or the like by using the first information, and then transmits the data to the management device 20.SELECTED DRAWING: Figure 2

Description

The present invention relates to a collecting device, a management device, a communication device, and a control method.

Data acquired from industrial machines such as machine tools is transmitted to communication terminals (also simply referred to as terminals) by communication. For example, there is an MTConnect standard as a communication standard for such communication (see Non-Patent Document 1).

In the MTConnect standard, data output by an industrial machine is acquired by an agent (also called a management device) via an adapter (also called a collecting device) connected to the industrial machine.

MTConnect Association, "A free, open standard for the factory.", [Online], [Search January 20, 2nd year of Reiwa], Internet <URL: https://www.mtconnect.org/>

When acquiring data from an industrial machine, the adapter uses information that defines from which address of the storage device of the industrial machine the data is acquired. In addition, the agent manages the data by using the above information.

However, the above information is information related to the proper operation of the industrial machine, and if it is improperly rewritten, there is a problem that the proper operation of the industrial machine may be hindered.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a collecting device or the like that suppresses the proper operation of an industrial machine from being hindered.

In order to solve the above problems, the collecting device according to one aspect of the present invention is a collecting device that provides data acquired from an industrial machine to a management device, and is used for acquiring data from the industrial machine. Correspondence information in which the information is associated with the second information used to provide the acquired data to the management device, and the encryption correspondence information is partially or wholly encrypted correspondence information. With respect to the acquisition unit to be acquired, the decryption unit that obtains the correspondence information by decrypting the encryption correspondence information acquired by the acquisition unit, and the data acquired from the industrial machine using the first information. It includes a providing unit that provides the data to the management device after adding the second information.

According to this, the collecting device acquires the correspondence information necessary for acquiring the data from the industrial machine and providing it to the management device as an encrypted state, that is, encryption correspondence information, not in plain text. Therefore, since the correspondence information is not read until the collection device acquires the encryption correspondence information, it is prevented that the information stored in the industrial machine is illegally rewritten, and as a result, the industrial machine is prevented from being illegally rewritten. It is suppressed that the proper operation of is hindered. In this way, the collector can prevent the proper operation of the industrial machine from being hindered.

Further, the encryption correspondence information may be encryption correspondence information acquired from a device different from the collection device.

According to this, since the collecting device acquires the correspondence information from a device different from the collecting device, the correspondence information can be acquired more easily. Therefore, the collecting device can more easily prevent the proper operation of the industrial machine from being hindered.

Further, the encryption correspondence information is provided by an electronic file in which a part or all of the correspondence information is encrypted, and the decryption unit decrypts a part or all of the encrypted part of the electronic file. The corresponding information may be obtained at.

According to this, since the collecting device is provided with the corresponding information in the form of an electronic file in which a part or the whole is encrypted, the corresponding information can be handled more easily. Therefore, the collecting device can more easily prevent the proper operation of the industrial machine from being hindered.

Further, the collecting device and the management device may be adapters and agents in the MTConnect standard, respectively.

According to this, when the collecting device provides the data acquired from the industrial machine to the management device by the method conforming to the MTConnect standard, it is possible to prevent the proper operation of the industrial machine from being hindered.

Further, in order to solve the above problems, the management device according to one aspect of the present invention is a management device in which the collection device acquires and manages the data acquired from the industrial machine, and the collection device is from the industrial machine. Corresponding information in which the first information used for acquiring data and the second information used for providing the data acquired by the collecting device to the management device are associated with each other, and a part or all of the information is encrypted. The acquisition unit that acquires the encryption correspondence information that is the corresponding information that has been converted, the decryption unit that obtains the correspondence information by decrypting the encryption correspondence information acquired by the acquisition unit, and the collection device are the industries. It is provided with a management unit that acquires and manages the data provided by adding the second information from the collecting device based on the acquisition from the machine using the first information.

According to this, the management device acquires the correspondence information necessary in the process of acquiring the data acquired from the industrial machine via the collection device as the encrypted state, that is, the encryption correspondence information, instead of the plain text. Therefore, since the correspondence information is not read until the management device acquires the encryption correspondence information, it is prevented that the information stored in the industrial machine is illegally rewritten, and as a result, the industrial machine is prevented from being illegally rewritten. It is suppressed that the proper operation of is hindered. In this way, the management device can prevent the proper operation of the industrial machine from being hindered.

Further, the encryption correspondence information may be encryption correspondence information acquired from a device different from the management device.

According to this, since the management device acquires the correspondence information from a device different from the management device, the correspondence information can be acquired more easily. Therefore, the management device can more easily prevent the proper operation of the industrial machine from being hindered.

Further, the encryption correspondence information is provided by an electronic file in which a part or all of the correspondence information is encrypted, and the decryption unit decrypts a part or all of the encrypted part of the electronic file. The corresponding information may be obtained at.

According to this, the management device is provided with the correspondence information in the form of an electronic file in which a part or the whole is encrypted, so that the correspondence information can be handled more easily. Therefore, the management device can more easily prevent the proper operation of the industrial machine from being hindered.

Further, the acquisition unit may acquire the encryption correspondence information from the collection device.

According to this, since the management device acquires the correspondence information from the collection device, the correspondence information can be acquired more easily. Therefore, the management device can more easily prevent the proper operation of the industrial machine from being hindered.

Further, the collecting device and the management device may be adapters and agents in the MTConnect standard, respectively.

According to this, the management device can suppress that the proper operation of the industrial machine is hindered when the collecting device provides the data acquired from the industrial machine to the management device in a method conforming to the MTConnect standard. ..

Further, in order to solve the above-mentioned problems, the communication device according to one aspect of the present invention includes the above-mentioned collecting device and the above-mentioned management device for acquiring the data from the collecting device.

According to this, the communication device has the same effect as the collection device and the management device.

Further, in order to solve the above problems, the control method according to one aspect of the present invention is a control method of a collecting device that provides data acquired from an industrial machine to a management device, and acquires data from the industrial machine. Correspondence information in which the first information used for the purpose and the second information used for providing the acquired data to the management device are associated with each other, and the correspondence information is partially or wholly encrypted. The acquisition step of acquiring the encryption correspondence information, the decryption step of obtaining the correspondence information by decrypting the encryption correspondence information acquired in the acquisition step, and the acquisition of the first information from the industrial machine. The data includes a providing step of adding the second information to the data and then providing the data to the management device.

According to this, the same effect as that of the above-mentioned collecting device is obtained.

In order to solve the above problems, the control method according to one aspect of the present invention is a control method of a management device in which a collecting device acquires and manages data acquired from an industrial machine, and the collecting device is the industrial machine. Corresponding information in which the first information used for acquiring data from the data is associated with the second information used for providing the data acquired by the collecting device to the management device, and a part or all of the corresponding information is associated with the information. The acquisition step of acquiring the encryption correspondence information which is the encrypted correspondence information, the decryption step of obtaining the correspondence information by decrypting the encryption correspondence information acquired in the acquisition step, and the collecting device said It includes a management step of acquiring and managing the data provided by adding the second information from the collecting device based on the acquisition of the first information from the industrial machine.

According to this, the same effect as that of the above-mentioned management device is obtained.

It should be noted that the present invention can be realized not only as an apparatus, but also as a method in which the processing means constituting the apparatus is used as a step, as a program for causing a computer to execute those steps, or as a computer reading in which the program is recorded. It can be realized as a possible recording medium such as a CD-ROM, or as information, data or a signal indicating the program. Then, those programs, information, data and signals may be distributed via a communication network such as the Internet.

According to the present invention, the collecting device can prevent the proper operation of the industrial machine from being hindered.

FIG. 1 is a schematic diagram showing a configuration of a communication system according to an embodiment. FIG. 2 is a block diagram showing a configuration of a collecting device according to an embodiment. FIG. 3 is a block diagram showing a configuration of a management device according to an embodiment. FIG. 4 is an explanatory diagram of correspondence information according to the embodiment. FIG. 5 is an explanatory diagram showing an example of information output to the management device by the collecting device according to the embodiment. FIG. 6 is an explanatory diagram showing an example of item information according to the embodiment. FIG. 7 is a flow chart showing an example of data provision processing according to the embodiment.

Hereinafter, embodiments will be specifically described with reference to the drawings.

Each of the embodiments described below shows a preferred specific example of the present invention. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, etc. shown in the following embodiments are examples, and are not intended to limit the present invention. Further, among the components in the following embodiments, the components not described in the independent claims indicating the highest level concept of the present invention will be described as arbitrary components constituting the more preferable form. The same components may be designated by the same reference numerals and description thereof may be omitted.

(Embodiment)
In the present embodiment, a collecting device, a management device, and the like that prevent the proper operation of the industrial machine from being hindered will be described.

FIG. 1 is a schematic diagram showing a configuration of a communication system 1 according to the present embodiment. The communication system 1 is a system that collects data output by one or more machines, manages the collected data, and presents the collected data to a user.

As shown in FIG. 1, the communication system 1 includes machines 5A, 5B and 5C (also referred to as machines 5A and the like), collection devices 10A, 10B and 10C (also referred to as collection devices 10A and the like), a management device 20 and the like. It includes a terminal 30. The collecting device 10A and the like are also referred to as a collecting device 10.

Machine 5A is an industrial machine such as a machine tool. The machine 5A is a machine for which data is acquired by the management device 20. The machine 5A is connected to the collection device 10A by a communication line L, and outputs data related to the machine 5A to the collection device 10A through the communication line L. The communication line L is a communication line capable of communicating with a communication protocol such as Ethernet (registered trademark) or IP (Internet Protocol), or a communication protocol of a proprietary standard.

The data output by the machine 5A is described according to the format determined according to the type of the machine 5A. The data output by the machine 5A is, for example, data related to the operation, state, or control of the machine 5A.

The type of machine 5A includes a machine tool, a laser machine, a welding machine, etc., a lathe, a drilling machine, a milling machine, etc. among the machine tools, and a model or version of the lathe. It is a concept.

Hereinafter, the case where the machine 5A is a machine tool will be described as an example. Further, the data output by the machine 5A is position information indicating the position of the spindle (not shown) of the machine 5A or the like which is a machine tool. For example, the data are the X, Y and Z coordinates of the spindle. In addition to the above, the data includes consumables such as loads in the X-axis direction, Y-axis direction and Z-axis direction of the spindle (not shown) of the machine tool 5A, etc., and the degree of wear of the cutting tool. The state of the above, and the open / closed state of one or more doors or doors provided by the machine 5A or the like may be included.

The machines 5B and 5C are industrial machines similar to the machine 5A, respectively, and operate independently of the machine 5A. Like the machine 5A, the machines 5B and 5C are machines for which data is acquired by the management device 20. The machines 5B and 5C are connected to the collection devices 10B and 10C by a communication line L, respectively, and output data related to the machines 5B and 5C to the collection devices 10B and 10C through the communication line L, respectively.

Here, the case where there are three machines 5A, 5B, and 5C will be described, but the number of machines 5A and the like is not limited to 3, and may be 1 or more, for example, 10 or 50 machines. It may be about.

The collecting device 10A is a device that collects data by acquiring data from the machine 5A and provides the collected data to the management device 20. The collecting device 10A is connected to the machine 5A through the communication line L, and is also connected to the management device 20 through the network N.

The collecting device 10A acquires data related to the machine 5A through the communication line L, adds second information (described in detail later) to the acquired data, and provides the data to the management device 20 through the network N. The collection device 10A and the management device 20 can communicate with each other by a predetermined communication method via the network N, and communicate by transmitting a text message by, for example, TCP (Transmission Control Protocol). The operation of the collecting device 10A will be described in detail later.

The collecting devices 10B and 10C are the same collecting devices as the collecting device 10A, respectively, and operate independently of the collecting device 10A. The collection devices 10B and 10C are connected to the machines 5B and 5C, respectively, and add second information to the data acquired from the machines 5B and 5C and provide the data to the management device 20 through the network N.

The management device 20 is a device that the collecting device 10A or the like acquires and manages the data acquired from the machine 5A or the like. The management device 20 receives and manages the data output by each of the machines 5A and the like via the collection device 10A and the like. Further, the management device 20 provides the managed data to the terminal 30. The management device 20 may perform appropriate processing when providing the data and provide the data to the terminal.

The terminal 30 is a communication device that receives data output by each of the machines 5A and the like via the collection device 10A and the like and the management device 20. The terminal 30 receives the above data, generates an image based on the received data, and presents it to the administrator or the like. The image can be presented, for example, by displaying it on a display screen included in the terminal 30.

The management device 20 and the terminal 30 are connected by a network M, and can communicate with each other according to, for example, a standard for data communication of industrial machines, more specifically, an MTConnect standard or an OPC UA standard.

The communication line L or the network N or M may or may not be included in the communication system 1. Further, the communication realized by the communication line L or the network N or M may be wired communication or wireless communication, respectively.

The collecting device 10A and the like and the management device 20 may be adapters and agents in the MTConnect standard, respectively.

The collecting device 10A and the like and the management device 20 may be realized as one communication device. In that case, it can be said that the communication device includes a collection device 10A and the like, and a management device 20 that acquires data from the collection device 10A and the like. At this time, the functions of the collecting device 10A and the like and the functions of the management device 20 may be realized by one CPU (Central Processing Unit).

FIG. 2 is a block diagram showing a configuration of the collecting device 10 according to the present embodiment.

As shown in FIG. 2, the collecting device 10 includes an acquisition unit 11, a decoding unit 12, an interface 13, and a providing unit 14. Each of the above functional units can be realized by the CPU included in the collecting device 10 executing a program using the memory.

The acquisition unit 11 associates the first information used for acquiring data from the machine 5A or the like with the second information used for providing the acquired data to the management device 20 or the like (details later). It is a processing unit that acquires encryption correspondence information, which is correspondence information in which a part or all of it is encrypted.

The first information includes at least the address information in which the data is stored in the storage device included in the machine 5A and the identifier of the interface 13 for acquiring the data.

Further, the second information includes at least a data identifier added when the acquired data is provided to the management device 20 or the like.

The decryption unit 12 is a processing unit that obtains the correspondence information by decrypting the encryption correspondence information acquired by the acquisition unit 11. The decryption unit 12 provides the corresponding information obtained by decrypting the encryption correspondence information to the providing unit 14.

The interface 13 is an interface for acquiring data from the machine 5A. The interface 13 is a logical interface realized by the CPU using a program, that is, an API (Application Programming Interface) or the like. An identifier is associated with the interface 13. A plurality of interfaces 13 may be provided, in which case the identifier is different for each interface 13. For example, the API differs for each data to be acquired, such as shaft position information of the spindle and consumables information.

The providing unit 14 is a processing unit that provides the data to the management device 20 after adding the second information to the data acquired from the machine 5A or the like using the first information. When adding the second information to the above data, the providing unit 14 refers to the correspondence information, selects the second information associated with the first information in the correspondence information, and converts the selected second information into the above data. Add.

Further, the providing unit 14 may provide the encryption correspondence information acquired by the acquiring unit 11 to the management device 20 by communication (for example, by wiring on the same board, a wired cable connection, a network connection, or the like).

The encryption-corresponding information may be the encryption-corresponding information acquired by communication from a device different from the collection device 10, or may be the encryption-corresponding information provided and acquired through some storage medium. In that case, the decryption unit 12 obtains the correspondence information by decrypting the acquired encryption correspondence information.

Further, the form in which the encryption correspondence information is provided may be an electronic file in which a part or all of the correspondence information is encrypted. In this case, the decryption unit 12 obtains the corresponding information by decrypting a part or the whole encrypted in this electronic file.

FIG. 3 is a block diagram showing a configuration of the management device 20 according to the present embodiment.

As shown in FIG. 3, the management device 20 includes an acquisition unit 21, a decoding unit 22, a management unit 23, and a transmission unit 24. Each of the above functional units can be realized by the CPU included in the management device 20 executing a program using the memory.

The acquisition unit 21 associates the first information used by the collection device 10 to acquire data from the machine 5A or the like with the second information used by the collection device 10 to provide the data acquired by the collection device 10 to the management device 20. It is a processing unit that acquires encryption correspondence information, which is correspondence information that is partially or wholly encrypted correspondence information.

The decryption unit 22 is a processing unit that obtains the correspondence information by decrypting the encryption correspondence information acquired by the acquisition unit 21. The decryption unit 22 provides the management unit 23 with the correspondence information obtained by decrypting the encryption correspondence information.

The management unit 23 is a processing unit that manages the data output by the machine 5A or the like. The management unit 23 acquires and manages the data provided by the collecting device 10 with the second information added, based on the data acquired by the collecting device 10 from the machine 5A using the first information. The management unit 23 acquires the data from the collection device 10 by receiving the data through the network N.

The transmission unit 24 is a processing unit that transmits the data acquired by the management unit 23 to the terminal 30 through the network M. For example, the transmission unit 24 may perform a process of changing the display mode of the data so that the data acquired and managed by the management unit 23 from the collection device 10 is displayed in a mode that is easily visible to the user. good. This process includes, for example, arranging the data in chronological order or changing the data to be displayed in the form of a graph. Further, it may include a process that can be displayed by various terminals 30 by converting the data into HTML (HyperText Markup Language) format.

Further, the encryption-corresponding information may be the encryption-corresponding information acquired by communication from a device different from the management device 20, or may be the encryption-corresponding information provided and acquired via some storage medium. In this case, the decryption unit 22 obtains the correspondence information by decrypting the acquired encryption correspondence information.

Further, the form in which the encryption correspondence information is provided may be an electronic file in which a part or all of the correspondence information is encrypted. In this case, the decryption unit 12 obtains the corresponding information by decrypting a part or the whole encrypted in this electronic file.

Further, the encryption correspondence information may be the encryption correspondence information acquired from the collection device 10 by the acquisition unit 21.

FIG. 4 is an explanatory diagram of correspondence information according to the present embodiment.

As shown in FIG. 4, the corresponding information is information in which a data item, an interface, a storage address, and a data identifier are associated with each other. In the correspondence information, one of the data items output by the machine 5A corresponds to one entry.

The data item is information indicating an item of data output by the machine 5A.

The interface is an identifier of the interface 13 for acquiring the data related to the entry.

The storage address is information indicating an address in which the data related to the entry is stored in the storage device included in the machine 5A. The storage address can be used as an access destination address when the collection device 10 acquires data from the machine 5A or the like.

The data identifier is an identifier of the data related to the entry. The data identifier is added when the collecting device 10 (providing unit 14) provides the data related to the entry to the management device 20. Further, the data identifier is added when the management device 20 (transmission unit 24) provides data to the terminal 30.

For example, in the correspondence information shown in FIG. 4, API1 as an interface 13 for acquiring the value of the X coordinate which is a data item, the storage address “ad1”, and the data identifier “X1_Pos” are associated with each other.

Further, the API 2 as the interface 13 for acquiring the value of the Y coordinate which is a data item, the storage address "ad2", and the data identifier "Y1_Pos" are associated with each other.

Here, the correspondence information shown in FIG. 4 often has its own specifications for each industrial machine maker, and if the industrial machine to be acquired is different, the correspondence information may be different for each. More specifically, in the present embodiment, in the corresponding information of the machine 5A shown in FIG. 4, the storage address “ad1” and the data identifier “X1_Pos” are associated with each other. Even for industrial machines of the same type (for example, laser processing machine), if the manufacturer of the industrial machine to be acquired is different, for example, the storage address "ad1" and the data identifier "Z1_Pos" are associated with each other. Correspondence information is different.

Of the corresponding information, the interface and the storage address are particularly important information related to the proper operation of the industrial machine, and if they are illegally rewritten, the proper operation of the industrial machine is hindered. Therefore, it can be further suppressed that the proper operation of the industrial machine is hindered by being acquired by the collecting device 10 and the management device 20 in the encrypted state of these two item values.

FIG. 5 shows information 61 in the packet 60 transmitted by the collecting device 10 to the management device 20 regarding the data that can be acquired from the machine 5A or the like according to the present embodiment. When the packet 60 is transmitted to the management device 20, it does not have to be encrypted.

The information 61 is arranged by arranging the data identifier of the data and the data acquired from the interface 13 corresponding to the data identifier separated by characters or symbols for delimitation. Specifically, the information 61 is data in which the data identifier is "X1_Pos" and the data is "1.5". Although the delimiter character or symbol is a vertical bar (|) here, it may be another character or symbol or a space.

As described above, when the collection device 10 and the management device 20 are realized as one communication device, not only the data transmission / reception shown in FIG. 5 but also the encryption correspondence information shown in FIG. 4 is also one. Transfers may be made within the device.

FIG. 6 is an explanatory diagram showing an example of contents (referred to as item information) provided by the management device 20 according to the present embodiment to the terminal 30.

As shown in FIG. 6, the item information is information indicating an item of information that can be output by the machine 5A. FIG. 6 shows item information described in XML format as an example. The format of the item information is not limited to the XML format and may be any format. The item information is expressed in XML format according to, for example, when the communication standard for communication between the management device 20 and the terminal 30 is the MTConnect standard or the OPC UA standard.

As shown in FIG. 6, the item information includes information about the main axis as the element 50 of the Axes tag. Specifically, the positions of the X coordinate, the Y coordinate, and the Z coordinate of the main axis are shown as the element 50 of the Axes tag.

Then, three DataItem tags are included inside the Axes tag. The element 51 of the DataItem tag whose data identifier is "X1_Pos" indicates the X coordinate of the main axis. The element 52 of the DataItem tag whose data identifier is "Z1_Pos" indicates the Z coordinate of the main axis. The element 53 of the DataItem tag whose data identifier is "Y1_Pos" indicates the Y coordinate of the main axis.

As described above, the item information indicates the item of the data output by the machine 5A according to the type of the machine 5A. The item information is generated by using the corresponding information obtained by decoding the decoding unit 22 of the management device 20.

The process executed by the communication system 1 configured as described above, that is, the data providing process will be described.

FIG. 7 is a flow chart showing an example of data provision processing according to the embodiment.

In step S101, the acquisition unit 11 of the collection device 10 acquires the encryption correspondence information.

In step S102, the decryption unit 12 of the collection device 10 obtains the correspondence information by decrypting the encryption correspondence information acquired in step S101.

In step S103, the providing unit 14 of the collecting device 10 acquires data from the machine 5A through the interface 13 by using the correspondence information obtained in step S102.

In step S104, the providing unit 14 of the collecting device 10 adds a data identifier associated with the data in the corresponding information to the data acquired in step S103.

In step S105, the providing unit 14 of the collecting device 10 transmits the data to which the data identifier is added in step S103 to the management device 20.

In step S201, the acquisition unit 21 of the management device 20 acquires the encryption correspondence information.

In the present embodiment, in step S201, the acquisition unit 21 of the management device 20 has described that the own device (management device 20) acquires the encryption correspondence information, but the acquisition method can be various modes. Conceivable. For example, it may be acquired by communication from the collecting device 10, or may be acquired by an electronic file.

In step S202, the decryption unit 22 of the management device 20 obtains the correspondence information by decrypting the encryption correspondence information acquired in step S201.

In step S203, the management unit 23 of the management device 20 generates item information by using the correspondence information obtained in step S202.

In step S204, the management unit 23 of the management device 20 receives the data to which the data identifier is added, which was transmitted in step S106. The management unit 23 manages the received data after recognizing the type of the received data by referring to the data identifier.

As a result, the collecting device 10 and the management device 20 can prevent the proper operation of the industrial machine from being hindered.

As described above, the collecting device of the present embodiment acquires the corresponding information necessary for acquiring data from the industrial machine and providing it to the management device in an encrypted state, that is, as encrypted correspondence information, not in plain text. .. Therefore, since the correspondence information is not read until the collection device acquires the encryption correspondence information, it is prevented that the information stored in the industrial machine is illegally rewritten, and as a result, the industrial machine is prevented from being illegally rewritten. It is suppressed that the proper operation of is hindered. In this way, the collector can prevent the proper operation of the industrial machine from being hindered.

Further, since the collecting device acquires the correspondence information from a device different from the collecting device, the correspondence information can be acquired more easily. Therefore, the collecting device can more easily prevent the proper operation of the industrial machine from being hindered.

Further, since the collecting device is provided with the corresponding information in the form of an electronic file in which a part or the whole is encrypted, the corresponding information can be handled more easily. Therefore, the collecting device can more easily prevent the proper operation of the industrial machine from being hindered.

Further, when the collecting device provides the data acquired from the industrial machine to the management device by a method conforming to the MTConnect standard, the collecting device appropriately provides the data output by the industrial machine from the collecting device to the management device.

Further, the management device of the present embodiment acquires the correspondence information required in the process of acquiring the data acquired from the industrial machine via the collection device as an encrypted state, that is, encryption correspondence information, not in plain text. Therefore, since the correspondence information is not read until the management device acquires the encryption correspondence information, it is prevented that the information stored in the industrial machine is illegally rewritten, and as a result, the industrial machine is prevented from being illegally rewritten. It is suppressed that the proper operation of is hindered. In this way, the management device can prevent the proper operation of the industrial machine from being hindered.

Further, since the management device acquires the correspondence information from a device different from the management device, the correspondence information can be acquired more easily. Therefore, the management device can more easily prevent the proper operation of the industrial machine from being hindered.

Further, since the management device is provided with the correspondence information in the form of an electronic file in which a part or the whole is encrypted, the correspondence information can be handled more easily. Therefore, the management device can more easily prevent the proper operation of the industrial machine from being hindered.

Further, since the management device acquires the correspondence information by the encrypted communication, the correspondence information can be handled more easily. Therefore, the management device can more easily prevent the proper operation of the industrial machine from being hindered.

Further, since the management device acquires the correspondence information from the collection device, the correspondence information can be acquired more easily. Therefore, the management device can more easily prevent the proper operation of the industrial machine from being hindered.

In addition, the management device can suppress that the proper operation of the industrial machine is hindered when the collecting device provides the data acquired from the industrial machine to the management device by a method conforming to the MTConnect standard.

It should be noted that the present invention can be realized not only as an apparatus, but also as a method in which the processing means constituting the apparatus is used as a step, as a program for causing a computer to execute those steps, or as a computer reading in which the program is recorded. It can be realized as a possible recording medium such as a CD-ROM, or as information, data or a signal indicating the program. Then, those programs, information, data and signals may be distributed via a communication network such as the Internet.

Although the collecting device and the like of the present invention have been described above based on the embodiment, the present invention is not limited to this embodiment. As long as the gist of the present invention is not deviated, various modifications that can be conceived by those skilled in the art are applied to the present embodiment, and a form constructed by combining components in different embodiments is also included in the scope of the present invention. ..

The present invention can be used for a collecting device and a management device for acquiring data output by an industrial machine.

1 Communication system 5A, 5B, 5C Machine 10, 10A, 10B, 10C Collection device 11, 21 Acquisition unit 12, 22 Decoding unit 13 Interface 14 Providing unit 20 Management device 23 Management unit 24 Transmission unit 30 Terminals 50, 51, 52, 53 elements 60 packets 61 information L communication line M, N network

Claims (12)

It is a collection device that provides the data acquired from industrial machinery to the management device.
Corresponding information in which the first information used for acquiring data from the industrial machine and the second information used for providing the acquired data to the management device are associated with each other, and part or all of them are encrypted. The acquisition unit that acquires the encryption correspondence information, which is the correspondence information that has been converted,
A decryption unit that obtains the corresponding information by decrypting the encryption correspondence information acquired by the acquisition unit, and a decryption unit.
A collecting device including a providing unit that adds the second information to the data acquired from the industrial machine using the first information and then provides the data to the management device. The collection device according to claim 1, wherein the encryption support information is encryption support information acquired from a device different from the collection device. The encryption correspondence information is provided by an electronic file in which a part or all of the correspondence information is encrypted.
The decoding unit
The collection device according to claim 1 or 2, wherein the corresponding information is obtained by decrypting an encrypted part or all of the electronic file. The collection device according to any one of claims 1 to 3, wherein the collection device and the management device are adapters and agents in the MTConnect standard, respectively. The collection device is a management device that acquires and manages the data acquired from industrial machines.
Corresponding information in which the first information used by the collecting device to acquire data from the industrial machine and the second information used by the collecting device to provide the data acquired by the collecting device to the management device are associated with each other. And the acquisition unit that acquires the encryption correspondence information, which is the correspondence information that is partially or wholly encrypted,
A decryption unit that obtains the corresponding information by decrypting the encryption correspondence information acquired by the acquisition unit, and a decryption unit.
The collection device includes a management unit that acquires and manages the data provided by adding the second information from the collection device based on the acquisition of the first information from the industrial machine. Management device. The management device according to claim 5, wherein the encryption support information is encryption support information acquired from a device different from the management device. The encryption correspondence information is provided by an electronic file in which a part or all of the correspondence information is encrypted.
The decoding unit
The management device according to claim 5 or 6, wherein the corresponding information is obtained by decrypting an encrypted part or all of the electronic file. The management device according to claim 5, wherein the acquisition unit acquires the encryption correspondence information from the collection device. The management device according to any one of claims 5 to 8, wherein the collection device and the management device are adapters and agents in the MTConnect standard, respectively. The collecting device according to any one of claims 1 to 4, and the collecting device.
A communication device including the management device according to any one of claims 5 to 9, which acquires the data from the collection device. It is a control method of a collection device that provides data acquired from industrial machines to a management device.
Corresponding information in which the first information used for acquiring data from the industrial machine and the second information used for providing the acquired data to the management device are associated with each other, and part or all of them are encrypted. The acquisition step to acquire the encryption correspondence information, which is the correspondence information that has been converted, and
A decryption step of obtaining the correspondence information by decrypting the encryption correspondence information acquired in the acquisition step, and a decryption step.
A control method including a providing step of adding the second information to the data acquired from the industrial machine using the first information and then providing the data to the management device. It is a control method of the management device that the collecting device acquires and manages the data acquired from the industrial machine.
Corresponding information in which the first information used by the collecting device to acquire data from the industrial machine and the second information used by the collecting device to provide the data acquired by the collecting device to the management device are associated with each other. And the acquisition step to acquire the encryption correspondence information, which is the correspondence information that is partially or wholly encrypted,
A decryption step of obtaining the correspondence information by decrypting the encryption correspondence information acquired in the acquisition step, and a decryption step.
A management step of acquiring and managing the data provided by adding the second information from the collecting device based on the acquisition of the collecting device from the industrial machine using the first information is included. Control method.

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