CN114003610B - Geographic entity time-varying processing method and device - Google Patents
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Abstract
The application discloses a geographic entity time-varying processing method, which is used for respectively establishing a time sequence for each geographic entity of geographic information data, wherein the time sequence of the geographic entity comprises a plurality of time values of at least one attribute type and corresponding attribute values. The time values of the plurality of geographic entities are not correlated. The application also includes a device implementing the method. The method and the device solve the problem of inconvenient time management based on the geographic entity data, support the application of geographic entity databases with various requirements, and improve data safety.
Description
Technical Field
The present application relates to the field of geographic information technologies, and in particular, to a method and an apparatus for time-varying processing of a geographic entity.
Background
The geographic entity data pair realizes the combination of geographic information and social, economic, natural resource and other information and is used for realizing the consistency maintenance of multi-entity targets. The geographic entity is an independent natural or artificial ground object with spatial position and common attribute in the real world and is formed by combining or aggregating point, line, surface and volume primitive data.
The classification and the coding of the geographic entities are one of important foundations for the wide sharing of geographic information at the present stage, and are also important measures for deeply developing geographic information resources in cities, accelerating the construction of natural resources and a geographic space basic database, promoting the sharing of the geographic space information and optimizing the structure of the information resources.
In particular, the time-related attributes of geographic entities relate to complex application requirements and data information security risks in terms of data storage, editing, representation and application in the development and construction of natural geographic and social infrastructures. In the prior art, the change information of the whole life cycle of the geographic entities is managed by versioned unified time information of the whole library entities, and the life cycle change information and data safety of each geographic entity cannot be specifically managed.
How to adapt to diversified time-related data application requirements and increase the security of data and information processing is a technical problem to be solved.
Disclosure of Invention
The embodiment of the application provides a geographic entity time-varying processing method and device, solves the problem of inconvenient time management based on geographic entity data, supports application of geographic entity databases with various requirements, and improves data safety.
The time-varying processing method for the geographic entity, provided by the embodiment of the application, comprises the following steps: respectively establishing a time sequence for each geographic entity of the geographic information data; a time series of geographic entities comprising a plurality of time values and corresponding attribute values for at least one attribute type; the time values of the plurality of geographic entity attributes are not correlated.
Further, a geographic entity target set is generated, wherein any attribute value of a plurality of geographic entities corresponds to the target time value.
Preferably, the attribute type of any geographic entity whose attribute value corresponding to the target time value is an attribute value earlier than the target time value in the time series of the geographic entity, and further preferably, its attribute value is an attribute value earlier than the target time value in the time series of the geographic entity and corresponding to a time value closest to the target time value.
Preferably, in the geographic entity target set, when a plurality of geographic entities conflict, a geographic entity with a later time value has priority over a geographic entity with a earlier time value.
Or, the attribute type of at least one geographic entity, the attribute value of which corresponding to the target time value is an interpolation of the first attribute value and the second attribute value. The first attribute value is an attribute value corresponding to a time value earlier than the target time value in the time series of the geographic entity. And the second attribute value is an attribute value corresponding to a time value later than the target time value in the time sequence of the geographic entity.
Preferably, in any embodiment of the present application, the time value includes a time of creation, a time of modification, and a time of death of the geographic entity.
The embodiment of the present application further provides a geographic entity time-varying processing system, which is configured to implement the method according to any one of the embodiments of the present application, and the method includes: the system comprises a geographic entity database, a time application server, a first application module, a second application module and at least one application data module.
The geographic entity database is used for storing the data of the geographic entities and comprises the time sequence of the geographic entities.
The time application server is used for receiving an instruction of the first application module, generating a time-varying attribute value and updating the geographic entity database; and the system is also used for receiving a second application module instruction and generating a geographic entity target set corresponding to the target time.
And the first application module is used for creating and modifying the attribute value of the geographic entity.
And the second application module is used for setting target time and a geographic entity range.
And the application data module is used for storing the geographic entity target set with the set geographic entity range.
Further, the first application module is further configured to configure security of the time-varying attribute value, where the security configuration includes at least one of: inhibit reading, authenticate reading, inhibit editing, authenticate editing, change the time value or attribute value with an encryption algorithm, restore the time value or attribute value with a decryption algorithm, inhibit displaying, authenticate displaying, change a display attribute.
The present application also proposes a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any of the embodiments of the present application.
The present application further proposes an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method according to any of the embodiments of the present application when executing the computer program.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
in the whole life process of the geographic entities, the change process of each geographic entity is independently managed through the whole-flow management of the time information, and the storage capacity of data is reduced. By time management of the change process of the geographic entity in the whole life cycle, backtracking of any time node of the geographic entity can be carried out at any time, and a logic basis is provided for subsequent application of database building and updating of the geographic entity; on the basis, the application data sets with multiple application ranges and multiple security levels are supported. The scheme of the application solves the problem of inconvenient time management based on the geographic entity data, supports the application of geographic entity databases with various requirements, and improves data safety.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a time value generation process for a geographic entity;
FIG. 2 is a schematic diagram of target time attribute selection for a geographic entity;
FIG. 3 is a flowchart of an embodiment of a method for time-varying processing of a geographic entity;
FIG. 4 is a flow diagram of another embodiment of a method for time-varying processing of a geographic entity;
fig. 5 is an embodiment of a geo-entity time-varying processing system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a time value generation process of a geographic entity.
To support the geographic entity time processing, the system of fig. 1 includes a geographic entity information database 11, a time configuration module 12, a time mapping module 13, and a geographic entity application data set module 14.
The geographic entity database 11 is configured to store all information of a plurality of geographic entities.
The configuration module 12 is configured to support a user to perform time management on data, and generate time configuration information and security configuration information.
The management of time information in the whole life process of the geographic entities, particularly the change information of each geographic entity, includes the following typical operations:
creation of a geographic entity: when the geographic entities are created, each geographic entity has a unique creation time.
Modification of the geographic entity: and in the change process of the geographic entities, recording the modification time of each time, and managing the ex-warehouse time and the in-warehouse time of each geographic entity.
Extinction of geographic entities: and after the geographic entity disappears, recording the information of the death time, and synchronously updating the death time of the entity in the database.
Backtracking of geographic entities: through the time information of the geographic entity, the nodes of the geographic entity at any time in the full life cycle can be traced back.
The mapping module 13 is configured to convert the time configuration information from the application module into standard time value data, and store the standard time value data in the geographic entity database 11. Due to the effect of the time configuration information, the geographic entity database includes a time series of geographic entities, that is, for a plurality of attribute types of each geographic entity, time value data and geographic entity attribute value data corresponding to each time value data are included.
Preferably, the mapping module is further configured to implement a security operation indicated by security configuration information of the time-varying attribute value, where the security configuration includes at least one of: inhibit reading, authenticate reading, inhibit editing, authenticate editing, change the time value or attribute value with an encryption algorithm, restore the time value or attribute value with a decryption algorithm, inhibit displaying, authenticate displaying, change a display attribute value or time value.
When the configuration module indicates the security level of the geographic entity, the mapping module respectively implements corresponding security operations in the processes of storing and fetching the database of the geographic entity according to the security configuration mode corresponding to the security level. The security configuration is implemented, for example, when a user accesses a geographic entity database and wishes to read data to generate the geographic entity application data set 14.
For example, when the configuration module instructs to store a time value of a specific geographic entity attribute type into the geographic entity database, a security level is also indicated, which includes a time value encryption security configuration command, and accordingly, the time value data stored in the geographic entity database is encrypted data, and when read, needs to be decrypted and read by the mapping module.
For another example, when the configuration module stores a time value of a specific geographic entity attribute type in the geographic entity database, a security level is indicated, which includes an authenticated read security configuration command, and accordingly, when the time value stored in the geographic entity database is read out, the read command needs to be authenticated by the mapping module.
The application data set can be implemented by distinguishing application ranges or scenes. The range of geographic entities includes geographic entities defined by one or more attribute categories. Such as urban application data sets including offices, businesses, garages, hospitals, schools (kindergartens, nursery, etc.), factories, companies, institutions, malls (and supermarkets, farm markets), hotels, and gas stations. As another example, natural geographic information application data sets include wetlands, rivers, forests, grasslands, oceans, islands, and mountains. As another example, a safety facility application data set contains geographic entities that relate to significant natural environments, significant manual settings, and significant productive living facilities.
Fig. 2 is a schematic diagram of selecting a target time attribute of a geographic entity.
The time information of the geographic entities is that each geographic entity establishes a time sequence and the time values of the geographic entities are not related. The time values of the plurality of geographic entities are not related, that is, the time values of the attribute categories of the geographic entities are independent from one another, may be partially the same or different, and are not set as a condition in relation to one another. For example, fig. 2 shows a specific attribute value time distribution of several geographic entities, with the attribute value time series of entity 1 being 311, 312, the attribute value time series of entity 2 being 321, 322, 323, and the attribute value time series of entity 3 being 311. Typically, to illustrate the problem, the time values corresponding to the attribute values of the entities in the embodiment in the figure are different.
When the application data set is generated, for example, a target time value (position shown by a dotted line in the figure) is set. In general, it can be understood that when entity 1 takes attribute value 311 and entity 2 takes attribute value 322, an application set mapping of a target time point can be constructed. While the attribute value 331 of entity 3 has not yet occurred and cannot participate in building the application data set.
When the geographic entity has a security configuration, the attribute value selection and substitution under different conditions are as follows:
the security configuration of the attribute value 322 of the entity 2 is "read prohibited" or "display prohibited", and the application data set at the target time can only ignore the attribute value 322 and further retrieve the attribute value 321 of the entity 2.
The security configuration of the attribute value 311 of the entity 1 is "encryption, decryption", and the true attribute value and/or the true time value of the attribute 311 are obtained by running a decryption program, and are added into the application data set of the target time.
Fig. 3 is a flowchart of an embodiment of a method for time-varying processing of a geographic entity.
The time-varying processing method for the geographic entity, provided by the embodiment of the application, comprises the following steps:
and 31, respectively establishing a time sequence for each geographic entity of the geographic information data.
A time series of geographic entities comprising a plurality of time values and corresponding attribute values for a plurality of attribute categories; the time values of the plurality of geographic entities are not correlated.
Preferably, in any embodiment of the present application, the time value includes a time of creation, a time of modification, and a time of death of the geographic entity.
And step 32, setting a security level and security configuration for the time sequence.
The security configuration, e.g., the cryptographic processing of the geographic entity, includes at least one of: forbidding reading, authenticating reading, forbidding editing, authenticating editing, changing target data by an encryption algorithm, and restoring the target data by a decryption algorithm.
For example, in a specific application, information protection of a set organization or industry is realized by prohibiting reading of geographical entity information related to the set organization or industry. For another example, in a specific application, an authentication function is set by an editing function of an attribute value and/or a time value of a geographic entity, so that the generation, management, operation and maintenance of geographic entity data of the application realize industry division or application differentiation. For another example, in a specific application, the attribute value and/or the time value of the geographic entity within the set range are encrypted and decrypted to realize the customization processing.
The security configuration, for another example, to perform differentiated display of the target data, includes at least one of: display prohibition, display authentication and display attribute change. For example, in certain applications, changes are made to display attributes of a particular geographic entity, for example. As another example, in a particular application, primitive information masking, disguising or emphasis of the relevant house entity is implemented.
And step 33, generating a geographic entity target set, wherein the attribute values of a plurality of geographic entities correspond to the target time values.
Preferably, the attribute type of any geographic entity whose attribute value corresponding to the target time value is an attribute value earlier than the target time value in the time series of the geographic entity, and further preferably, its attribute value is an attribute value earlier than the target time value in the time series of the geographic entity and corresponding to a time value closest to the target time value.
Preferably, in the geographic entity target set, when a plurality of geographic entities conflict, a geographic entity with a later time value has priority over a geographic entity with a earlier time value. Multiple geographic entity information conflicts, such as spatial conflicts, occur, and spatial overlap occurs between a subsequently created geographic entity and a previously created geographic entity. For example, in fig. 2, when the geographic entity components 322 and 311 conflict with each other, the attribute value 322 of the entity 2 is selected first, and the attribute value 311 of the entity 1 is selected next.
Preferably, when the time information of the geographic entity has a security configuration, the geographic entity target set is processed according to the security configuration mode.
Fig. 4 is a flowchart of another embodiment of a method for time-varying processing of a geographic entity.
And step 41, establishing a time sequence for each geographic entity of the geographic information data (same as step 31).
A time series of geographic entities comprising a plurality of time values of a plurality of attribute types and corresponding attribute values; the time values of the plurality of geographic entities are not correlated.
And step 42, setting a safety level and a safety configuration for the time sequence (same as step 32).
For example, for entity 1 in FIG. 2, attribute value 311 is a first attribute value and attribute value 312 is a second attribute value. The entity 1 attribute value at the target time is then an interpolation of attribute values 311 and 322.
It should be noted that the method of step 43 is applicable to features suitable for quantitative numerical expression, such as natural geographic features.
According to the embodiments of fig. 1 to 4, it can be understood that the application data set includes a geographic entity target set, and the geographic entity target set may include a subset of geographic entities in a geographic entity information database, or may include modified geographic entities, that is, the geographic entity target set is a mapping set generated by the geographic entity set according to application conditions, where the application conditions include: target time, security configuration, range, or scenario.
Fig. 5 is an embodiment of a geo-entity time-varying processing system.
The embodiment of the present application further provides a geographic entity time-varying processing system, which is configured to implement the method according to any one of the embodiments of the present application, and the method includes: a geo-entity database 51, a time application server 52, a first application module 53, a second application module 54, at least one application data module 55, 56, 57.
The geographic entity database 51 is configured to store data of geographic entities, including time series of geographic entities.
The time application server 52 is configured to receive an instruction of the first application module, generate a time-varying attribute value, and update the geographic entity database; and the system is also used for receiving a second application module instruction and generating a geographic entity target set corresponding to the target time.
The first application module 53 is configured to create and modify attribute values of geographic entities. For example, a configuration module 12 is included to support the user to perform time management on the data and generate time configuration information.
The second application module 54 is configured to set a target time and a geographic entity range.
And the application data modules 55-57 are used for storing a geographic entity target set with a set geographic entity range.
Further, the first application module is further configured to perform security configuration on the time-varying attribute value, and generate security configuration information. For example, the security configuration comprises at least one of: inhibit reading, authenticate reading, inhibit editing, authenticate editing, change the time value or attribute value with an encryption algorithm, restore the time value or attribute value with a decryption algorithm, inhibit displaying, authenticate displaying, change a display attribute. At this time, the geo-temporal application server 52 includes the mapping module 13, and implements the security operation indicated by the security configuration information of the time-varying attribute value in the process of updating the geo-entity database or generating the target set of geo-entities.
By the method and the device, the management of the time information of the whole life cycle of the geographic entity can be realized, and the backtracking of any time node of the life cycle of any geographic entity is realized, so that the geographic entity application data set 14 is generated according to the customized requirement.
To further illustrate the application data set, in the embodiment shown in fig. 5, the application data modules are multiple application data sets for storing differentiated security levels and/or differentiated application ranges, which include one or more geographic entity target sets.
It should be noted that the geographic entity target set corresponding to the target time may be established with a distinguishable application range, for example, the wetland distribution in a certain area at 1 month and 1 day in 2010, the target time being 1 month and 1 day in 2010, and the application range being the wetland. For another example, the bank distribution in a certain area at 1 month and 1 day of 2020 shows that the target time is 1 month and 1 day of 2020 and the application range is the bank.
It should be further noted that, the set of geographic entity targets corresponding to the target time may also be established by differentiating the security levels, and each security level corresponds to 1 or more security configurations. A distribution of construction facilities in a certain area, for example, 1/2010, including a plurality of geographical entities that prohibit displaying of construction facilities, authenticate displaying of construction facilities, change of display attributes of construction facilities, open construction facilities, and the like, and when there is no security level, only the geographical entities including open construction facilities are generated as application data sets; an application data set with a lower security level comprises two geographic entities of a display attribute changing building facility and a public building facility as the application data set; and the application data set with a higher security level comprises three geographic entities of authentication display building facilities, display attribute change building facilities and public building facilities. And the application data set with higher security level comprises four geographic entities of forbidden display of the building facilities, authentication of the display of the building facilities, change of display attribute of the building facilities and disclosure of the building facilities.
For example, in the embodiment shown in fig. 5, the first application data module 55, containing the set of geographic entity targets for the first application scope, has no security level requirements. The second application data module 56, which contains the target set of geographic entities of the second application scope, has the security level requirement, and is configured to be encrypted for storage and decrypted for recovery. A third application data module 57, containing a set of geographic entity targets for a third application scope, has a security level requirement and is configured for "authenticated reading". For another example, under the authentication reading condition, the authentication display or the prohibition display may be further implemented.
The invention provides management of time attribute information in a life-wide process based on novel basic mapping geographic entities. The invention mainly determines the management of the time attribute information of the geographic entity, realizes the full-flow management of the creation, modification and extinction of the geographic entity, simultaneously supports the backtracking of the change process of any time node in the life cycle of the geographic entity, and supports diversified application requirements and data safety.
Embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application therefore also proposes a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of the embodiments of the present application.
Further, the present application also proposes an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the computer program to implement the method according to any of the embodiments of the present application.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of features does not include only those features but may include other features not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, reference to a feature identified by the phrase "comprising an … …" does not exclude the presence of additional like features in the process, method, article, or apparatus that comprises the feature.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (9)
1. A geographic entity time-varying processing method is characterized in that:
respectively establishing a time sequence for each geographic entity of the geographic information data;
a time series of geographic entities comprising a plurality of time values and corresponding attribute values for at least one attribute type; the time values of the plurality of geographic entity attributes are not correlated;
generating a geographic entity target set, wherein any attribute value of a plurality of geographic entities corresponds to a target time value; the geographic entity target set is a mapping set generated by the geographic entity set according to application conditions, and the application conditions comprise: target time, security configuration, range; a range of geographic entities, including geographic entities defined by one or more attribute categories;
in the process of generating the geographic entity target set, realizing the safety operation indicated by the safety configuration information of the time-varying attribute value; and establishing a differentiated security level corresponding to the geographic entity target set of the target time, wherein each security level corresponds to 1 or more security configurations.
2. The method for temporally-varying processing of a geographic entity as recited in claim 1, further comprising the steps of:
and the attribute type of any geographic entity, wherein the attribute value corresponding to the target time value is the attribute value earlier than the target time value in the time sequence of the geographic entity.
3. The geo-entity time-varying processing method of claim 1,
and when a plurality of geographic entities conflict in the geographic entity target set, the geographic entity with the later time value has priority over the geographic entity with the earlier time value.
4. The geo-entity time-varying processing method of claim 1,
an attribute type of at least one geographic entity whose attribute value corresponding to the target time value is an interpolation of a first attribute value and a second attribute value;
the first attribute value is an attribute value corresponding to a time value earlier than the target time value in the time sequence of the geographic entity;
and the second attribute value is an attribute value corresponding to a time value later than the target time value in the time sequence of the geographic entity.
5. The geo-entity time-varying processing method of claim 1,
the time value comprises the time of creation, the time of modification and the time of death of the geographic entity.
6. A geographic entity time-varying processing system for implementing the method of any one of claims 1 to 5, comprising:
the system comprises a geographic entity database, a time application server, a first application module, a second application module and at least one application data module;
the geographic entity database is used for storing data of geographic entities and comprises time sequences of the geographic entities;
the time application server is used for receiving an instruction of the first application module, generating a time-varying attribute value and updating the geographic entity database; the system is also used for receiving a second application module instruction and generating a geographic entity target set corresponding to the target time;
the first application module is used for creating and modifying attribute values of the geographic entities;
the second application module is used for setting target time and a geographic entity range;
and the application data module is used for storing the geographic entity target set with the set geographic entity range.
7. The geo-entity time-varying processing system of claim 6,
the first application module is further configured to perform a security configuration of the time-varying attribute value, the security configuration including at least one of: inhibit reading, authenticate reading, inhibit editing, authenticate editing, change the time value or attribute value with an encryption algorithm, restore the time value or attribute value with a decryption algorithm, inhibit displaying, authenticate displaying, change a display attribute.
8. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method of any one of claims 1 to 5.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method according to any of claims 1 to 5 when executing the computer program.
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