Metadata processing, industrial identification registration, data query method and device, and medium

Abstract

The embodiments of the present application provide an industrial internet identification processing method, an industrial identification registration method, a data query method, a device and a medium. When an industry node in an industrial internet identification analysis architecture registers an industrial identification for an article, the industry node can obtain an existing industrial identification previously registered by the article, thereby establishing the correlation between the industrial identifications. Further, the fusion node can aggregate each metadata according to the industrial identifications and the metadata provided by each industry node, and map the metadata to a metadata information database and take each industrial identification as an index. Thus, a user can query complete metadata information of the article through any industrial identification, thereby solving the problem of the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial internet, and in particular to a metadata processing method and device for industrial internet identification resolution, an industrial identification registration method and device, and a data query method and device, and a medium. BACKGROUND

[0002] With the continuous development of industrial internet applications, information interaction between cross-system, cross-platform and cross-region, and collaboration and information sharing between heterogeneous systems are gradually increasing.

[0003] In the industrial internet identification resolution architecture scenario circulating across industries, the same item will be allocated different industrial identifications (such as identification codes, etc.) by different enterprises in different industries, and the metadata describing the item information in each industry will be affiliated to different industrial identifications. When the "item" circulates across industries in one or more forms (such as raw materials, parts, finished products, etc.) in the entire industrial chain, the item has multiple industrial identifications and their respective metadata, the information is extremely scattered, and the complete information of the item in the entire life cycle cannot be obtained through a single industrial identification, which is not conducive to accurately and digitally positioning the item in the industrial internet. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a metadata processing method and device for industrial internet identification resolution, an industrial identification registration method and device, and a data query method and device, and a medium, which aggregates metadata by associating industrial identifications, thereby solving the problems of the prior art.

[0005] The first aspect of the present application provides a metadata processing method applied to a fusion node in an industrial internet identification resolution architecture, the industrial internet identification resolution architecture further comprising industry nodes corresponding to each industry respectively, the industry nodes corresponding to each industry respectively being used for registering industrial identifications for items circulating in the industry, the item having metadata in each industry; the metadata processing method comprising: the fusion node acquiring industrial identifications and metadata of the item in each industry; wherein the item carries the existing industrial identification registered by the industry node passed through before when registering the current industrial identification in each industry node, to obtain the current industrial identification associated with the existing industrial identification; the fusion node aggregates each metadata and maps to a metadata information library, and configures each industrial identification of the item as an index of the collection of metadata of the item in each industry.

[0006] In an embodiment of the first aspect, each industry node sends the industrial identification and metadata registered by the corresponding item to a superior node, and the fusion node acquires each industrial identification and metadata from the superior node.

[0007] In an embodiment of the first aspect, the metadata processing method further comprises: in response to a data query request carrying any of the industrial identifiers, querying the metadata information library according to the industrial identifiers as indexes and obtaining associated respective metadata to reply to the data query request.

[0008] In an embodiment of the first aspect, the metadata information library is a first database storing data entities of respective metadata; or the metadata information library is a second database storing address information of respective metadata.

[0009] The second aspect of the present application provides an industrial identifier data transmission method applied to an industry node in an industrial internet identifier analysis architecture, each of the industry nodes being configured to register industrial identifiers for goods circulating in an industry, the goods having metadata in each industry; the industrial identifier data transmission method comprising: the industry node receiving an identifier registration request for the goods, the identifier registration request carrying an existing industrial identifier registered by a previously passed industry node; the industry node registering a current industrial identifier for the goods; and the industry node sending the current industrial identifier, the existing industrial identifier and the metadata associated therewith to the outside.

[0010] In an embodiment of the second aspect, the respective industry nodes in the industrial internet identifier analysis architecture respectively send a set of metadata of the goods in each industry, which is configured to aggregate respective metadata and map to a metadata information library and take each industrial identifier of the goods as an index of the set of metadata of the goods in each industry.

[0011] In an embodiment of the second aspect, the metadata information library is a first database storing data entities of respective metadata; or the metadata information library is a second database storing address information of respective metadata.

[0012] In an embodiment of the second aspect, the industrial identifier data transmission method further comprises: in response to a data query request carrying any of the industrial identifiers of the goods, obtaining respective metadata queried according to the industrial identifiers from the outside to reply to the data query request.

[0013] The third aspect of the present application provides an industrial identification data query method applied to a user terminal, the user terminal being used to query data of an article in an industrial internet identification analysis architecture, the industrial internet identification analysis architecture comprising industry nodes corresponding to each industry respectively, the industry nodes corresponding to each industry respectively being used to register industrial identification for the article circulating in the industry, the article having metadata in each industry; the industrial identification data query method comprising: the user terminal sending a data query request carrying industrial identification; wherein the industrial identification is the industrial identification registered by the article in any industry node; and the user terminal receiving the metadata of the article in each industry queried according to the industrial identification. In specific implementation, the metadata can be stored in a centralized storage of real data, or can be only a mapping set of data addresses.

[0014] The fourth aspect of the present application provides a metadata processing device of industrial internet identification analysis, applied to a fusion node in an industrial internet identification analysis architecture, the industrial internet identification analysis architecture further comprising industry nodes corresponding to each industry respectively, the industry nodes corresponding to each industry respectively being used to register industrial identification for the article circulating in the industry, the article having metadata in each industry; the metadata processing device comprising: an acquisition module, used to acquire industrial identification and metadata of the article in each industry; wherein the article carries existing industrial identification registered by a previously passed industry node when registering current industrial identification in each industry node, to obtain current industrial identification associated with the existing industrial identification; a gathering module, used to gather each metadata and map to a metadata information base, and configure each industrial identification of the article as an index of a set of metadata of the article in each industry.

[0015] The fifth aspect of the present application provides an industrial identification transmission device, applied to an industry node in an industrial internet identification analysis architecture, each industry node being used to register industrial identification for the article circulating in the industry, the article having metadata in each industry; the industrial identification transmission device comprising: a receiving module, used to receive an identification registration request about the article, the identification registration request carrying existing industrial identification registered by a previously passed industry node; a registration module, used to register current industrial identification for the article, the current industrial identification being associated with the existing industrial identification; and a sending module, used to send the current industrial identification, the existing industrial identification and the metadata to an external association.

[0016] The sixth aspect of the present application provides an industrial identification data query device applied to a user terminal, the user terminal being used to query data of an article in an industrial internet identification analysis architecture, the industrial internet identification analysis architecture comprising industry nodes corresponding to each industry respectively, the industry nodes corresponding to each industry respectively being used to register industrial identification for articles circulating in the industry, the article having metadata in each industry; the industrial identification data query device comprising: a sending module used to send a data query request carrying industrial identification; wherein the industrial identification is the industrial identification registered by the article in any industry node; and a receiving module used to receive metadata of the article in each industry queried according to the industrial identification.

[0017] The seventh aspect of the present application provides a computer device comprising a communicator, a memory and a processor; the communicator being used to communicate with the outside; the memory storing program instructions; and the processor being used to run the program instructions to execute the metadata processing method according to any one of the first aspect; or execute the industrial identification data transmission method according to any one of the second aspect; or execute the industrial identification data query method according to the third aspect.

[0018] The eighth aspect of the present application provides a computer readable storage medium storing program instructions, the program instructions being run to execute the metadata processing method according to any one of the first aspect; or execute the industrial identification data transmission method according to any one of the second aspect; or execute the industrial identification data query method according to the third aspect.

[0019] In summary, the embodiments of the present application provide a metadata processing method, an industrial identification registration method, a data query method, a device and a medium for industrial internet identification analysis, through the industry nodes in the industrial internet identification analysis architecture registering industrial identification for articles, the existing industrial identification registered by the article before can be obtained, thereby establishing the correlation between the industrial identification. Further, the fusion node can aggregate each metadata and map to the metadata information database according to the industrial identification and metadata provided by each industry node, and take each industrial identification as an index. Thus, the user can query the complete metadata information of the article through any industrial identification, solving the problem of the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A structure schematic diagram of the industrial internet identification analysis architecture in the embodiments of the present application is shown.

[0021] Figure 2 A principle schematic diagram of implementing industrial identification correlation and metadata aggregation in one specific embodiment of the present application is shown.

[0022] Figure 3AA flowchart of node communication for implementing industrial identification data fusion in an embodiment of the present application is shown.

[0023] Figure 3B A flowchart of node communication for implementing industrial identification data fusion in another embodiment of the present application is shown.

[0024] Figure 4A A schematic diagram of the principle of industrial identification association and matching in an embodiment of the present application is shown.

[0025] Figure 4B A schematic diagram of the principle of industrial identification association and matching in another embodiment of the present application is shown.

[0026] Figure 5 A flowchart of industrial identification data query flow in an embodiment of the present application is shown.

[0027] Figure 6A A flowchart of industrial identification data query flow in another embodiment of the present application is shown.

[0028] Figure 6B A flowchart of industrial identification data query flow in another embodiment of the present application is shown.

[0029] Figure 6C A simplified flowchart of industrial identification data query flow in another embodiment of the present application is shown.

[0030] Figure 6D A simplified flowchart of industrial identification data query flow in another embodiment of the present application is shown.

[0031] Figure 7 A functional module diagram of a metadata processing device in an embodiment of the present application is shown.

[0032] Figure 8 A functional module diagram of an industrial identification data transmission device in an embodiment of the present application is shown.

[0033] Figure 9 A functional module diagram of an industrial identification data query device in an embodiment of the present application is shown.

[0034] Figure 10 A structural diagram of a computer device in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0035] The advantages and features of the present application will become apparent from specific examples which are given as particular embodiments of the present application and which are illustrative of the more general principles defining the breadth of the present application. Other advantages can readily appear to those skilled in the art from the disclosure of the present application. Embodiments and features of the present application can be combined with one another as suitable or desired, unless specifically stated otherwise.

[0036] The embodiments of the present application will be described in detail with reference to the drawings, so as to be easily carried out by a person skilled in the art to which the present application pertains. The present application can be embodied in various ways, and is not limited to the embodiments described herein.

[0037] In the present specification, the expressions "one embodiment", "some embodiments", "exemplary", "specific exemplary", or "some examples" mean that a specific feature, structure, material or characteristic included in the embodiment or example is included in at least one embodiment or example of the present application. Also, the specific feature, structure, material or characteristic can be combined in an appropriate manner in any one or more embodiments or examples. In addition, the different embodiments or examples expressed in the present specification and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0038] In addition, the terms "first", "second", etc. are used only to indicate the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the present specification, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0039] In order to clearly explain the present application, devices irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar constituent elements throughout the specification.

[0040] Throughout the specification, when it is said that a device is "connected" to another device, it includes not only the case of "direct connection", but also the case of "indirect connection" in which other elements are placed therebetween. In addition, when it is said that a device "includes" a certain constituent element, unless specifically stated otherwise, other constituent elements are not excluded, but it means that other constituent elements can also be included.

[0041] Although the terms first, second, etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first interface and a second interface, etc. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", when used herein, specify the presence of stated features, steps, operations, elements, modules, items, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, modules, items, components, and / or groups thereof. As used herein, the terms "or" and "and / or" are construed to be inclusive, or mean any one or any combination of the listed items. Thus, "A, B or C" or "A, B and / or C" means any of the following: A; B; C; A and B; A and C; B and C; A, B and C. Exceptions to this definition are only present when items are grouped in conjunction with the phrase "one of X, Y or Z" or "one of X, Y and / or Z" unless otherwise stated.

[0042] The professional terms used herein are only used to refer to specific embodiments, and are not intended to limit the present application. The singular form used herein, unless the statement explicitly indicates the opposite meaning, also includes the plural form. The meaning of "comprising" used in the specification is to specify the specific features, regions, integers, steps, operations, elements and / or components, and does not exclude the presence or addition of other features, regions, integers, steps, operations, elements and / or components.

[0043] Although not differently defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Terms defined in commonly used dictionaries are to be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0044] Currently, the management of industrial identification and metadata related to articles in the Internet of Things (such as the industrial Internet) is very scattered. For the same article, different industrial identifications (such as identification codes) can be registered at different industry nodes, which can be referred to as "coding", and written into the corresponding metadata of the article. Therefore, through the industrial identification of the article at a certain industry node, only the metadata of the article in this industry can be queried, and the complete metadata of the article in the entire life cycle of the industry chain cannot be obtained. For example, taking an automobile instrument as an example; when the instrument is in the instrument enterprise, the instrument product is assigned an identification A, and the instrument generates metadata A1; when the instrument is transferred to the automobile enterprise (such as the instrument is purchased by the automobile enterprise), the instrument is installed as a part in the car and changes to the state of the automobile, at this time, the automobile as a finished product can be assigned an identification B, and the automobile is provided with metadata B1; when the automobile is transferred to the automobile retail enterprise (such as sold to the automobile retail enterprise), the automobile will also be assigned an identification C, and the automobile generates metadata C1. A, B, and C are all industrial identifications of the instrument, but according to A, only the metadata A1 related to the instrument enterprise can be queried, according to B, only the metadata B1 related to the automobile enterprise can be queried, and according to C, only the metadata C1 related to the automobile enterprise can be queried. Unless all of A, B, and C are obtained, and it is determined that they are all industrial identifications of the instrument, the complete metadata of A1, B1, and C1 can be obtained, otherwise only part of the data can be obtained, and the instrument cannot be completely traced.

[0045] Therefore, in the embodiments of the present application, by associating the industrial identifications registered by the article in each industry during the transfer process, the metadata can be aggregated according to the association between the industrial identifications by the fusion node, and the complete metadata can be indexed according to each industrial identification, so that the complete metadata can be queried according to any identification, thereby solving the above problems.

[0046] As shown in Figure 1 , a structural schematic diagram of an industrial Internet identification analysis architecture in the embodiments of the present application is shown.

[0047] The industrial Internet identification analysis architecture can be a representation analysis architecture of the industrial Internet. In this embodiment, the industrial Internet identification analysis architecture can include, from bottom to top, an enterprise node 101, an industry node 102, a top node 103, and a fusion node 104. Figure 1 The architecture shown in the figure is an example, the top node 103 is a superior node of the industry node 102, and the enterprise node 101 is a subordinate node of the industry node 102. In other embodiments, the architecture can also change, such as the enterprise node 101 also containing further subordinate nodes, and is not limited to Figure 1 the architecture.

[0048] In Figure 1In an example, a top node 103, a plurality of industry nodes 102, and a plurality of enterprise nodes 101 under each industry node 102 are shown. The items 105 can circulate in different industries (e.g., industry 1 to industry N), i.e., the industry identifiers and metadata are registered in the corresponding industry nodes 102.

[0049] It should be noted that the "node" refers to a connection point in a communication network, indicating a redistribution point or a communication endpoint. In some embodiments, a node can be implemented by a communication device or a plurality of communication devices. For example, it can be implemented by a deployed centralized server / server group; or it can be implemented by a deployed distributed system, e.g., the industry nodes 102 can be implemented by a plurality of servers. In addition, some of the plurality of nodes can be implemented on a physical device, e.g., by different software running on the communication device, e.g., the fusion node 104 and the top node 103 can be different software ends on the same server, and interact through a software interface. Alternatively, the plurality of nodes can be implemented on separate physical devices, e.g., the fusion node 104 and the top node 103 can be implemented on separate physical servers. Similarly, the industry nodes 102, the enterprise nodes 101, and the industry nodes 102 and the enterprise nodes 101 can also be varied in software and physical hardware implementation according to actual scene needs.

[0050] The enterprise nodes 101, the industry nodes 102, and the top node 103 can be connected through a network communication. The network can include a local area network, a wide area network, or a hybrid network thereof. The local area network can be, for example, an intranet, and the wide area network can include, for example, a public Internet (e.g., a traditional Internet, a mobile Internet). The network can include a wired network, a wireless network, or a hybrid network thereof. The wired network is a network connected through a wired medium (e.g., an optical fiber, a copper twisted pair), and the wireless network includes, for example, WiFi, Bluetooth, or other types of networks.

[0051] In the identification resolution architecture of the industrial Internet, the top node 103 can be at the national level, and the industry nodes 102 are secondary to the top node 103, which can also be referred to as "secondary nodes". The enterprise nodes 101 are at the lower level of the secondary nodes, and each enterprise node 101 can correspond to an enterprise. The enterprise can generate an industrial identifier and metadata for the item 105, and transmit the industrial identifier and metadata of the item 105 to the industry node 102 through the enterprise node 101. The industry node 102 can register the industrial identifier and synchronize the industrial identifier and metadata transmitted by the enterprise node 101 to the top node 103.

[0052] In specific examples, the data structure of the industrial identifier can be set according to standards, such as international standards, national standards (such as GB), industry standards, etc. For example, the identifier coding format can include: prefix (such as country code, industry code, enterprise code), suffix (such as basic classification code, brand code, model code, circulation feature code, production date code and enterprise self-defined code). For example, in the industrial identifier code "A.bbb.cc / dddd", "A.bbb.cc" is the prefix, the fields divided by two "." have meanings respectively, "A" corresponds to the country code, "bbb" corresponds to the industry code, "cc" corresponds to the enterprise code, and "dddd" corresponds to the object code. Optionally, for example, "A.bbb.cc / dddd / eee", wherein "eee" represents the security code. Of course, the above gives the identifier structure of the industrial internet identifier, and the identifier structure can be changed in other different application scenarios, and is not limited thereto.

[0053] In specific examples, the data structure of the metadata of the article 105 can also be defined by standards, or can be changed according to actual scenarios. For example, in the national standard, seven types of plan data, design data, procurement data, production data, sales data, logistics data and service data are defined as core metadata of industrial products, and each metadata can be described by 9 attributes, such as identifier, Chinese name, English name, abbreviation, definition, data type, value range, maximum occurrence number and note.

[0054] It should be particularly noted that the above examples of specific implementation of the industrial identifier and the metadata are only to illustrate possible schemes in actual scenarios; however, it can be understood that the method flow in the embodiments of the present application does not need to pay attention to the change of the data structure of the industrial identifier and the metadata, but is to associate the data and the data, and therefore the protection scope of the present application is not limited by the above examples of the industrial identifier and the metadata.

[0055] If each industry node 102 only transmits the industrial identifier and the generated metadata of the article 105 registered in the industry, the complete set of metadata cannot be obtained through the single industrial identifier. Therefore, in the embodiments of the present application, when registering the current industrial identifier of the industry, each industry node 102 can also obtain the existing industrial identifier registered by the previous industry node 102, so as to form an association relationship between the current industrial identifier and the existing industrial identifier. Then, after the industrial identifier and the metadata of the article 105 are synchronized to the top node 103 at each industry node 102, the fusion node 104 can identify the industrial identifier and the metadata of the article 105 in all industries in these data by virtue of the association relationship, aggregate the metadata, form a metadata information library that can be used to query the set of metadata corresponding to the article, and provide complete metadata information for querying. In addition, each industrial identifier of the article can be configured as an index of the set of metadata of the associated article in each industry, so as to facilitate the query.

[0056] In some embodiments, the metadata information library can be a first database storing data entities of the metadata; or in other embodiments, the metadata information library can be a second database storing address information of the metadata.

[0057] Please refer to Figure 2 , Figure 2 for a specific example of implementing the association of industrial identifiers and the aggregation of metadata. A certain instrument X registers an industrial identifier 1 in the industry node A of the instrument industry, and has metadata X1; in the industry node B of the automobile manufacturing industry, X is located in a car Y, and the car Y registers an industrial identifier 2 related to X, and has metadata Y1. When registering the industrial identifier 2, the industry node B can also provide an interface to input the existing industrial identifier of X, for example, input the industrial identifier 1. Therefore, the industry node B can obtain the industrial identifier 1 and register the industrial identifier 2.

[0058] The industry node A synchronizes the industrial identifier 1 and the metadata X1 of X to the top node C.

[0059] When synchronizing the identifier to the top node C, the industry node B can send the industrial identifier 2, the industrial identifier 1 and the metadata Y1 in association, which can be placed in the same package, and / or respectively attached the same identifier information indicating their association relationship, and / or attached description information describing their association relationship, etc.

[0060] The fusion node D obtains industrial identifier 1 and metadata X1 from A; the fusion node D obtains industrial identifier 1, industrial identifier 2 and metadata Y1 from B; the fusion node D matches the two parts of information, and it is known that industrial identifier 1 and industrial identifier 2 are both associated with the state of the same article in different industries (such as a meter and a car in which the meter is located), and metadata X1 and Y1 belong to the same article, so that the data entity or address information of the storage location of X1 and Y1 can be placed in the metadata information database M about the meter, and industrial identifier 1 and industrial identifier 2 can be established to index the data entity or address information of the storage location of X1 and Y1 in the metadata information database M.

[0061] Exemplarily, the fusion node can be constructed based on, for example, JAVA language and SpringBoot open source framework, and the fusion node and the top node can be synchronized through, for example, a data table or through an interface. In a possible specific implementation example, the fusion node can be deployed in a centralized manner, in a distributed manner or in a cloud-edge collaborative manner as needed.

[0062] For example, the fusion node is carried on a server / server group in the cloud and is implemented in a centralized deployment manner. Alternatively, the fusion node is implemented based on a distributed system of an edge network. Alternatively, the fusion node is implemented based on collaborative work of the cloud and edge devices (such as a router, a base station and the like).

[0063] As shown in FIG. 1, a flowchart of node communication for implementing industrial identifier data fusion in an embodiment of the present application is shown. Figure 3A

[0064] The flow in this embodiment specifically includes:

[0065] Step S301: An industry node receives an identification registration request about an article, and the identification registration request carries an existing industrial identifier registered by a previously passed industry node.

[0066] In some embodiments, in the process of the article flowing between industries, the existing industrial identifier of the article is loaded in a physical carrier (such as a paper label, a document and the like) or an electronic carrier (such as an electronic label, an electronic document). Therefore, in each industry, the existing industrial identifier of the previous industry can be collected by, for example, manual input, OCR recognition, text extraction and the like, and is added to the identification registration request.

[0067] ​In some embodiments, the identification registration request can contain all the industry identifications of the item in previous industries, such as all the existing industry identifications of the item in previous industries are F-A and F-B, the identification registration request carries F-A and F-B, so as to reduce the possibility of incomplete item metadata aggregation. Or in other embodiments, the identification registration request can also contain only part of the industry identification, such as the industry identification of the item in a predetermined number of industries (such as the first 1, 2, 3... industries), so as to make the data structure of the identification registration request relatively simple.

[0068] Step S302: In response to the identification registration request, the industry node registers the current industry identification of the item.

[0069] Step S303: The industry node sends the associated current industry identification, existing industry identification and metadata to the top node.

[0070] In some embodiments, the top node stores the data sent by each industry node, including the current industry identification, existing industry identification and metadata of the item.

[0071] Step S304: The fusion node obtains the industry identification and metadata of the item in each industry from the top node.

[0072] In some embodiments, the fusion node can synchronize the industry identification and metadata from the top node when the trigger condition is met, such as triggering the execution of step S304 according to the time length condition. For example, the fusion node can trigger the execution of step S304 according to the message sent by the top node.

[0073] Step S305: The fusion node aggregates each of the metadata and maps to the metadata information base, and configures each industry identification of the item as an index of the set of metadata of the item in each industry.

[0074] In some embodiments, the fusion node can store the data entity of the aggregated metadata to the metadata information base; or in other embodiments, the fusion node can store the address information of the aggregated metadata to the metadata information base.

[0075] For example, in the metadata information base, the industry identification of item 1 has a, b and c, the metadata of item 1 in the industry corresponding to a is A, the metadata of item 1 in the industry corresponding to b is B, and the metadata of item 1 in the industry corresponding to c is C. In one example, the metadata information base can store a, b and c of item 1 and the metadata set A, B and C in association; in another example, if the storage addresses of A, B and C are A1, B1 and C1 respectively, the metadata information base can also store a, b and c of item 1 and the address information set A1, B1 and C1 of each metadata in association.

[0076] Further specifically, by the metadata information base, according to matching industrial identification, i.e. matching industrial identification from different industry nodes, to identify the same article in matching.

[0077] The actual situation of possible matching is illustrated by the following two examples.

[0078] As shown in Figure 4A , if each industry node receives all existing industrial identification of the article when registering the current industrial identification of the article, the industrial identification of each industry node obtained by the fusion node from the top node not only includes the current industrial identification, but also includes all previous existing industrial identification.

[0079] For example, the article flows through three industries respectively, corresponding to industry nodes A, B and C, and industrial identification 1 is obtained at industry node A; then, industrial identification 2 is registered at industry node B, and industrial identification 1 is received, and industry node B sends industrial identification 2 and 1 to the top node; then, industrial identification 1 and 2 are received at industry node C, industrial identification 3 is registered, and industrial identification 3, 2 and 1 are sent to the top node. Figure 4A The set of industrial identification passed by industry nodes A, B and C to the top node is shown respectively, and the existing industrial identification is represented by "√". The fusion node can identify industrial identification 1, 2 and 3 as related to the same article according to the matching of industrial identification 1, or can identify industrial identification 2 and 3 as related to the same article according to the coincidence of industrial identification 2, as shown by the dotted line in the figure.

[0080] For another example Figure 4B , if each industry node receives part of the previous existing industrial identification when registering the current industrial identification of the article, the industrial identification of each industry node obtained by the fusion node from the top node not only includes the current industrial identification, but also includes part of the previous existing industrial identification.

[0081] Taking the previous part of the industrial identification of the first n=1 industry as an example (the number of n can be changed according to demand), if the article flows through four industries respectively, corresponding to industry nodes A, B, C and D, industrial identification 1 is obtained at industry node A; then, industrial identification 2 is registered at industry node B, and industrial identification 1 is received, and industry node B sends industrial identification 2 and 1 to the top node; then, industrial identification 2 is received at industry node C, industrial identification 3 is registered, and industrial identification 3 and 2 are sent to the top node; then, industrial identification 3 is received at industry node D, industrial identification 4 is registered, and industrial identification 4 and 3 are sent to the top node. Figure 4BThe sets of industrial identifiers passed by industry nodes A, B, C, and D to the top node are respectively shown, and the existing industrial identifiers are indicated by "√". The fusion node can identify that industrial identifiers 1 and 2 are related to the same item according to the match of industrial identifier 1, identify that industrial identifiers 1, 2, and 3 are related to the same item according to the match of industrial identifier 2, and identify that industrial identifiers 1, 2, and 3 are related to the same item according to the match of industrial identifier 3, as indicated by the dashed circles in the figure.

[0082] It should be noted that the number of n can be set according to actual needs to minimize the adverse situation of missing due to the absence of industrial identifiers in the data sent by some industry nodes.

[0083] As shown in Figure 3B , a flowchart of node communication for implementing industrial identifier data fusion in another embodiment of the present application is shown. In this embodiment, a first industry node, a second industry node, a top node, and a fusion node are exemplarily shown. The first industry node and the second industry node are industry nodes of two industries through which the item flows before and after its life cycle. For simplicity of description and ease of understanding, the first industry node and the second industry node are assumed to be industry nodes of the first industry and the second industry in the life cycle of the item.

[0084] The flow in this embodiment specifically includes:

[0085] Step S301B: The first industry node receives a first identification registration request for the item;

[0086] Step S302B: In response to the first identification registration request, the first industry node registers an industrial identifier F-A for the item;

[0087] Step S303B: The first industry node sends the industrial identifier F-A and metadata 1 of the item in the industry to the top node.

[0088] Step S304B: The second industry node receives a second identification registration request for the item, and the second identification registration request carries the registered industrial identifier F-A.

[0089] Step S305B: In response to the second identification registration request, the second industry node registers an industrial identifier F-B for the item;

[0090] Step S306B: The second industry node sends the industrial identifiers F-A and F-B and metadata 2 of the item in the industry to the top node;

[0091] Step S307B: The fusion node obtains F-A and metadata 1 of the first industry node and F-A, F-B, and metadata 2 of the second industry node from the top node, respectively.

[0092] Step S308B: After the fusion node matches two pieces of data and identifies that they are related to the same item, it aggregates the data entity or storage location address information of metadata 1 and metadata 2 into the metadata information database of the item, and configures FA and FB as indexes of the collection of metadata of the item in various industries (i.e., metadata 1 and metadata 2).

[0093] Since the metadata transmitted by each industry node is pre-associated with the industry identifier (e.g., determined by the way the industry node sends data to the top-level node), by identifying that the industry identifier is related to the same item, it is possible to identify the metadata related to the same item, thereby forming the metadata information database.

[0094] Furthermore, since various industrial identifiers related to the same item are known, each industrial identifier can be associated with the metadata information database as an index. Users can query complete metadata information, that is, the collection of metadata of the item in all the industries it has circulated through, by using any one of the industrial identifiers.

[0095] In some embodiments, the query interface provided to users can be configured according to actual scenario requirements. For example, the query interface may be provided by one or more of the fusion node, industry node, enterprise node, or top-level node.

[0096] like Figure 5 The diagram illustrates a flowchart of an industrial identification data query process according to one embodiment of this application. In this embodiment, a user communicates with the queried node through a user terminal to query item data. The queried node can be any one of the fusion node, industry node, enterprise node, or top-level node. Exemplarily, the user terminal includes, but is not limited to, desktop computers, laptops, smartphones, tablets, personal mobile assistants, terminals, smartwatches, smart glasses, smart helmets, or other communication terminals.

[0097] In this embodiment, the process includes:

[0098] Step S501: The user terminal sends a data query request carrying any industrial identifier.

[0099] The term "any of the aforementioned industrial identifiers" refers to any one of the industrial identifiers registered by an item at various industry nodes. In other words, the identifier querying party can obtain complete metadata information through any industrial identifier code, following the existing usage process, thus promoting data-driven innovation.

[0100] Step S502: The queried node obtains the associated metadata based on the industrial identifier in the data query request.

[0101] Specifically, the metadata of the item corresponding to the industrial identifier in each industry is acquired.

[0102] Step S503: The queried node replies the data query request with the acquired metadata.

[0103] In some embodiments, if the queried node is a fusion node, the implementation of step S502 can be as shown in step S601A, the fusion node can index the industrial identifier and locally query the metadata information base to obtain the associated metadata. Figure 6A

[0104] In other embodiments, if the queried node is a top node, the implementation of step S502 can be as shown in steps S601B-S603B: Figure 6B

[0105] In step S601B, the top node requests data from the fusion node in response to the data query request. In a specific example, the top node can forward the data query request or construct another request to the top node according to the industrial identifier therein.

[0106] In step S602B, the fusion node indexes the industrial identifier and locally queries the metadata information base to obtain the associated metadata.

[0107] In some embodiments, if the metadata information base stores the data entities of the metadata, the metadata is directly read and obtained. In other embodiments, if the metadata information base stores the address information of the metadata, the metadata is addressed and read respectively through the address information.

[0108] In step S603B, the fusion node replies the top node with the queried metadata.

[0109] In other embodiments, the queried node can also be an industry node or an enterprise node, and the user terminal can select a query access point according to the communication path of “enterprise node-industry node-top node-fusion node” to transmit the data query request to the fusion node to obtain the complete metadata, as shown in Figure 6C and Figure 6D For intuitive simplification, in Figure 6C and Figure 6D , the arrows of the user terminal transmitting the data query request, passing through part or all of the communication path (black dots represent not passing through), and obtaining the replied metadata are simply shown, without showing each step in Figure 6A and Figure 6B , which should be understood by those skilled in the art without any doubt. ​​

[0110] As Figure 7 shown in the figure, a functional module schematic diagram of the metadata processing apparatus in the embodiment of the present application is shown. The metadata processing apparatus can be applied to the fusion node in the industrial internet identification resolution architecture. Therefore, the specific technical features of the metadata processing apparatus in the embodiment can refer to the fusion node in the previous embodiment, which will not be repeated here.

[0111] The metadata processing apparatus 700 comprises:

[0112] The acquisition module 701 is configured to acquire the industrial identification and metadata of the article in each industry; wherein the article carries the existing industrial identification registered by the industry node passed through before when registering the current industrial identification of each industry node, so as to obtain the current industrial identification associated with the existing industrial identification.

[0113] The convergence module 702 is configured to converge each of the metadata and map to the metadata information library, and configure each industrial identification of the article as the index of the collection of the article in each industry metadata.

[0114] In some embodiments, each of the industry nodes sends the industrial identification and metadata registered by the corresponding article to the superior node, and the fusion node acquires each of the industrial identification and metadata from the superior node.

[0115] In some embodiments, the metadata processing apparatus 700 further comprises a query module configured to respond to a data query request carrying any of the industrial identification, query the metadata information library according to the industrial identification as the index, and acquire each of the associated metadata to reply to the data query request.

[0116] In some embodiments, the metadata information library is a first database storing the data entity of each metadata; or the metadata information library is a second database storing the address information of each metadata.

[0117] As Figure 8 shown in the figure, a functional module schematic diagram of the industrial identification data transmission apparatus in the embodiment of the present application is shown. The metadata processing apparatus can be applied to the industry node in the industrial internet identification resolution architecture. Therefore, the specific technical features of the industrial identification data transmission apparatus in the embodiment can refer to the industry node in the previous embodiment, which will not be repeated here.

[0118] The industrial identification transmission apparatus 800 comprises:

[0119] The receiving module 801 is configured to receive an identification registration request about the article, and the identification registration request carries the existing industrial identification registered by the industry node passed through before;

[0120] The registration module 802 is configured to register a current industrial identifier for the object, the current industrial identifier being associated with the existing industrial identifier.

[0121] The sending module 803 is configured to send the current industrial identifier, the existing industrial identifier and the metadata to an external association.

[0122] In some embodiments, each of the industry nodes in the industrial internet identifier resolution architecture sends a set of metadata of the object in each industry, so as to aggregate each of the metadata and map to a metadata information base and take each of the industrial identifiers of the object as an index of the set of metadata of the object in each industry.

[0123] In some embodiments, the metadata information base is a first database storing data entities of each of the metadata, or the metadata information base is a second database storing address information of each of the metadata.

[0124] In some embodiments, the industrial identifier data transmission device 800 further includes a data request module configured to, in response to a data query request carrying any industrial identifier of an object, obtain, from an external, each of the metadata associated with the industrial identifier queried according to the industrial identifier to reply to the data query request.

[0125] As shown in Figure 9 FIG. 9, a functional module schematic diagram of an industrial identifier data query device in an embodiment of the present application is shown. The industrial identifier data query device can be applied to a user terminal. Therefore, the specific technical features of the industrial identifier data transmission device in the present embodiment can refer to the user terminal in the previous embodiment of querying the metadata information base, which will not be repeated here.

[0126] The industrial identifier data query device 900 includes:

[0127] The sending module 901 is configured to send a data query request carrying an industrial identifier, the industrial identifier being an industrial identifier registered by the object at any industry node.

[0128] The receiving module 902 is configured to receive metadata of the object in each industry queried according to the industrial identifier.

[0129] It should be particularly noted that, in Figure 7 , Figure 8 and Figure 9The various functional modules in the embodiments can be implemented wholly or partially by software, hardware, firmware, or any combination thereof. When implemented by software, the software can be implemented in the form of program instruction products entirely or partially. The program instruction products include one or more program instructions. When the program instructions are loaded and executed on a computer, the program instructions entirely or partially generate the processes or functions according to the present application. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or another programmable device. The program instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another computer-readable storage medium.

[0130] Also, Figure 7 , Figure 8 and Figure 9 The apparatus disclosed in the embodiments can be implemented by other module division manners. The apparatus embodiments shown above are merely illustrative, for example, the division of the modules is merely a logical function division, and actual implementation can have another division manner, for example, a plurality of modules or modules can be combined or can be dynamically moved to another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed modules can be indirect coupling or communication connection between the modules through some interfaces, devices, or modules, and can be electrical or other forms.

[0131] In addition, Figure 7 , Figure 8 and Figure 9 The functional modules and sub-modules in the embodiments can be dynamically in one processing component, or each module can be physically present alone, or two or more modules can be dynamically in one component. The above-mentioned dynamic components can be realized in the form of hardware or in the form of software functional modules. When the above-mentioned dynamic components are realized in the form of software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. The storage medium can be a read-only memory, a magnetic disk or an optical disk, etc.

[0132] As Figure 10 shown, a circuit structure schematic diagram of a computer apparatus in the embodiments of the present application is shown.

[0133] The physical hardware carriers of the enterprise nodes, industry nodes, top nodes, fusion nodes, user terminals, etc. in the industrial internet identification resolution architecture in the previous embodiments can be implemented based on the computer apparatus 1000 in the embodiments. For example, servers, desktop computers, notebook computers, smart phones, tablet computers, etc.

[0134] The computer device 1000 comprises a bus 1001, a processor 1002, a memory 1003, and a communicator 1004. The processor 1002 and the memory 1003 can communicate with each other through the bus 1001. The memory 1003 can store program instructions (such as system and / or application software) and data for reading and writing by the program instructions. The processor 1002 executes the steps of the server or the client in the foregoing embodiments by running the program instructions in the memory 1003.

[0135] The bus 1001 can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, although only one thick line is shown in the figure, it does not mean that there is only one bus or only one type of bus.

[0136] In some embodiments, the processor 1002 can be implemented as a Central Processing Unit (CPU), a Micro Control Unit (MCU), a System On Chip, or a Field Programmable Gate Array (FPGA), etc. The memory 1003 can include a volatile memory for temporary storage of data during program execution, such as a Random Access Memory (RAM).

[0137] The memory 1003 can also include a non-volatile memory for data storage, such as a Read-Only Memory (ROM), a flash memory, a Hard Disk Drive (HDD), or a Solid-State Disk (SSD).

[0138] The communicator 1004 is configured to communicate with the outside. In a specific example, the communicator 1004 can include one or more wired and / or wireless communication circuit modules. For example, the communicator 1004 can include one or more of, for example, a wired network card, a USB module, a serial interface module, and the like. Wireless communication protocols followed by the wireless communication module include one or more of, for example, Near Field Communication (NFC) technology, Infared (IR) technology, Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code division multiple access (WCDMA), Time-Division Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), Blue Tooth (BT), Global Navigation Satellite System (GNSS), and the like.

[0139] It can be understood that the selection of electronic hardware (and possibly software) such as the processor, the memory, the communicator, and the like can be different for the computer device for the server, the smart phone, the tablet, and the like.

[0140] For example, the computer device for the smart phone, the tablet, and the like can be equipped with one or more communicators such as a WiFi module, 2G / 3G / 4G / 5G mobile communication, NFC, Bluetooth, Infared, and the like, and a processor such as an SoC of ARM architecture, a running memory such as a low power double data rate (LPDDR), and an external storage such as a flash memory (e.g., NAND Flash RAM), and the like.

[0141] For another example, the computer device for the server and the like can include a wired network card or an optical module and the like as the communicator, can access the network by connecting a network cable, and can communicate with the outside through the network; can select a server CPU of X85 architecture as the processor, can select a server memory of DDR as the memory, and can select a solid state and / or mechanical hard disk (which can constitute a redundant array of independent disks (RAID)) as the external storage, and the like.

[0142] The embodiments of the present application can also provide a computer readable storage medium storing program instructions, which, when executed, perform the flow steps of one node or user terminal in the embodiments (for example Figure 3A , Figure 5 , Figures 6A-6D , etc.).

[0143] The method steps in the above embodiments are implemented as software or computer code that can be stored in a recording medium (such as a CD ROM, RAM, floppy disk, hard disk, or magneto-optical disk) or downloaded through a network and originally stored in a remote recording medium or non-transitory machine-readable medium and then stored in a local recording medium, so that the method represented herein can be processed by such software on a recording medium using a general-purpose computer, a special-purpose processor, or programmable or special-purpose hardware (such as an ASIC or an FPGA).

[0144] It should be particularly noted that the flow or method represented by the flowchart of the above embodiments of the present application can be understood as a module, segment, or part of code representing one or more executable instructions for implementing a specific logical function or process. And the scope of the preferred embodiments of the present application includes additional implementations, in which the functions can be performed in a substantially simultaneous manner or in reverse order according to the functions involved, rather than in the order shown or discussed.

[0145] For example, Figure 3A , Figure 5 , Figures 6A-6D , etc. The order of each step in the embodiments can be changed in specific scenarios, and is not limited by the above representation.

[0146] In summary, the embodiments of the present application provide a metadata processing method, an industrial identification registration method, a data query method, an industrial identification registration device, and a metadata processing medium for industrial internet identification resolution. Through the industry nodes in the industrial internet identification resolution architecture, when registering industrial identification for an article, the existing industrial identification registered before the article can be obtained, thereby establishing the correlation between the industrial identifications. Further, the fusion node can aggregate each metadata according to the industrial identification and metadata provided by each industry node and map the metadata to the metadata information database with each industrial identification as an index. Thus, a user can query the complete metadata information of an article through any industrial identification, thereby solving the problems of the prior art.

[0147] The above embodiments are only illustrative of the principles of the present application and its effects, and are not intended to limit the present application. Any modification or change made by any person skilled in the art without departing from the spirit and scope of the present application shall be covered by the claims of the present application.

Claims

1. A metadata processing method for industrial internet identifier resolution, characterized in that, The convergence node is applied in the industrial internet identifier resolution architecture, which also includes industry nodes corresponding to each industry. These industry nodes are used to register industrial identifiers for items circulating within their respective industries. Each item has metadata for each industry. The metadata processing method includes: The fusion node obtains the industrial identifier and metadata of the item in each industry from the various industry nodes through the top-level node; wherein, when the item registers the current industrial identifier at each industry node, it carries the existing industrial identifiers registered at the previously visited industry nodes through the identifier registration request, and stores the current industrial identifier and the existing industrial identifiers through the association relationship to obtain the current industrial identifier associated with the existing industrial identifier. The fusion node aggregates the metadata according to the association relationship and maps it to the metadata information library. The metadata information library stores the metadata set of the item in each industry and configures each industry identifier of the item as an index of the metadata set of the item in each industry.

2. The metadata processing method according to claim 1, characterized in that, Each industry node sends the industrial identifier and metadata of the corresponding item to the superior node, and the fusion node obtains each industrial identifier and metadata from the superior node.

3. The metadata processing method according to claim 1, characterized in that, Also includes: In response to a data query request carrying any of the aforementioned industry identifiers, the metadata information database is queried based on the industry identifiers as an index, and the associated metadata is retrieved to reply to the data query request.

4. The metadata processing method according to claim 1, characterized in that, The metadata information repository is a first database that stores the data entities of each metadata; or, the metadata information repository is a second database that stores the address information of each metadata.

5. A method for transmitting industrial identification data, characterized in that, The industry nodes are applied in the industrial internet identifier resolution architecture, which also includes fusion nodes. Each industry node is used to register industrial identifiers for items circulating within the industry, and each item has metadata in each industry. The industrial identification data transmission method includes: The industry node receives a registration request for an item's identifier, the registration request carrying existing industrial identifiers registered by previously visited industry nodes. The industry node registers the current industrial identifier for the item; The industry node stores the current industry identifier and the existing industry identifier through association, and sends the associated current industry identifier, existing industry identifier and metadata to the top-level node so that the fusion node can aggregate the metadata to the metadata information database based on the association.

6. The industrial identification data transmission method according to claim 5, characterized in that, The set of metadata of items in each industry sent by each industry node in the industrial internet identifier resolution architecture is used to aggregate the metadata and map it to the metadata information database, with each industrial identifier of the item as the index of the set of metadata of the item in each industry.

7. The industrial identification data transmission method according to claim 6, characterized in that, The metadata information repository is a first database that stores the data entities of each metadata; or, the metadata information repository is a second database that stores the address information of each metadata.

8. The industrial identification data transmission method according to claim 6, characterized in that, Also includes: The industry node responds to a data query request for any industrial identifier of the carried item by retrieving the associated metadata from the outside based on the industrial identifier in response to the data query request.

9. A method for querying industrial identification data, characterized in that, Applied to user terminals, the user terminals are used to query the data of items in the industrial internet identifier resolution architecture. The industrial internet identifier resolution architecture includes fusion nodes and industry nodes corresponding to each industry. The industry nodes corresponding to each industry are used to register industrial identifiers for items circulating within the industry. The items have metadata in each industry. The industrial identification data query method includes: The user terminal sends a data query request carrying an industrial identifier to the fusion node; wherein, the industrial identifier is the industrial identifier registered by the item at any industry node; The user terminal receives metadata of the item in various industries based on the industrial identifier. The metadata is generated by the fusion node based on the association between the industrial identifiers of the item. The association is formed by the industry node when registering the current industrial identifier by including all or part of the existing industrial identifiers of the previous industry node in the identifier registration request.

10. A metadata processing device for industrial internet identifier resolution, characterized in that, A fusion node is applied in the industrial internet identifier resolution architecture, which also includes industry nodes corresponding to each industry. These industry nodes are used to register industrial identifiers for items circulating within their respective industries, and each item has metadata for each industry. The metadata processing device includes: The acquisition module is used to acquire the industrial identifier and metadata of an item in each industry from various industry nodes through the top-level node; wherein, when the item registers the current industrial identifier at each industry node, it carries the existing industrial identifiers registered at the previously visited industry nodes through the identifier registration request, and stores the current industrial identifier and the existing industrial identifiers through the association relationship to obtain the current industrial identifier associated with the existing industrial identifiers. The aggregation module is used to aggregate the metadata according to the association relationship and map it to the metadata information library. The metadata information library stores the metadata set of the item in each industry and configures each industry identifier of the item as an index of the metadata set of the item in each industry.

11. An industrial identification transmission device, characterized in that, The industry nodes are applied in the industrial internet identifier resolution architecture, which also includes fusion nodes. Each industry node is used to register industrial identifiers for items circulating within the industry, and each item has metadata in each industry. The industrial identification transmission device includes: A receiving module is used to receive a registration request for an item's identifier, the registration request carrying existing industrial identifiers registered at previously visited industry nodes; The registration module is used to register a current industrial identifier for the item, and the current industrial identifier is associated with the existing industrial identifier; The sending module is used to store the current industrial identifier and the existing industrial identifier through an association relationship, and send the current industrial identifier, the existing industrial identifier and metadata to the top-level node in association, so that the fusion node can aggregate the metadata to the metadata information database based on the association relationship.

12. An industrial identification data query device, characterized in that, Applied to user terminals, the user terminals are used to query the data of items in the industrial internet identifier resolution architecture. The industrial internet identifier resolution architecture includes fusion nodes and industry nodes corresponding to each industry. The industry nodes corresponding to each industry are used to register industrial identifiers for items circulating within the industry. The items have metadata in each industry. The industrial identification data query device includes: The sending module is used to send a data query request carrying an industrial identifier to the fusion node; Wherein, the industrial identifier is the industrial identifier registered by the item at any industry node; The receiving module is used to receive the metadata of the item in various industries as queried based on the industrial identifier. The metadata is generated by the fusion node based on the association relationship between the industrial identifiers of the item. The association relationship is formed by the industry node including all or part of the existing industrial identifiers of the previous industry node in the identifier registration request when registering the current industrial identifier.

13. A computer device, characterized in that, include: Communicators, memory, and processors; The communicator is used for communication with the outside world; The memory stores program instructions; The processor is configured to execute the program instructions to perform the metadata processing method as described in any one of claims 1 to 4; Alternatively, the industrial identification data transmission method as described in any one of claims 5 to 8 may be performed; or the industrial identification data query method as described in claim 9 may be performed.

14. A computer-readable storage medium, characterized in that, The system stores program instructions that are executed to perform the metadata processing method as described in any one of claims 1 to 4; or, The industrial identification data transmission method as described in any one of claims 5 to 8 is executed; or, the industrial identification data query method as described in claim 9 is executed.

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