CN113392074B - Internet of things equipment security management method adopting memory documents - Google Patents
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- CN113392074B CN113392074B CN202110792182.0A CN202110792182A CN113392074B CN 113392074 B CN113392074 B CN 113392074B CN 202110792182 A CN202110792182 A CN 202110792182A CN 113392074 B CN113392074 B CN 113392074B
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Abstract
The invention relates to a security management method for Internet of things equipment by adopting memory documents, and belongs to the technical field of mobile Internet of things. The main mode of the memory document for the device management of the internet of things is a memory object in a document format, the memory object comprises a device metadata showData (element), a device state information showState (state), a version number, and a document semaphore, the original state of the device is recorded mainly by the memory object, the device metadata and the state of the device in the memory are kept consistent when the memory document is initialized, when the current state of the device changes, the changed state is updated to the device state information, and the change of the device state information is controlled by the version number.
Description
Technical Field
The invention relates to a security management method for Internet of things equipment by adopting memory documents, and belongs to the technical field of mobile Internet of things.
Background
The Internet of things changes the interaction mode between people and nature, realizes the interconnection between people and people, between people and objects and between objects, links the virtual information world and the real physical world, integrates the virtual information world and the real physical world, and expands the functions of the existing network and the capability of human to know and transform the world. The concept is another wave of information industry after computers, internet and mobile communication network, and is a brand new technical field.
The invention provides a method for managing the equipment in the memory, and provides a data rollback and safety mechanism of the equipment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for managing the security of the equipment of the internet of things by using a memory document, wherein the main mode of managing the equipment of the internet of things by using the memory document is a memory object in a document format, the memory object comprises equipment metadata showdata (element), equipment state information showdate (state), version number versionNumber and document semaphore (semaphore), for example, figure 1 and table 1, the original state of the equipment is mainly recorded by using the memory object, the equipment metadata and the state of the equipment in the memory are kept consistent when the memory document is initialized, and when the current state of the equipment changes, the changed state is updated to the equipment state information, and the change of the equipment state information is controlled by the version number. The default value of the version number is 0 when the version number is initialized, when the synchronous data of the Internet of things equipment is sent to the server, the information of the Internet of things equipment is received and updated to the equipment metadata corresponding to the memory document, at the moment, only when the version number information of the synchronous data is larger than the current version number information, the equipment metadata of the memory document is sent to be modified, otherwise, the modification is abandoned and the information of synchronization failure is returned, if the version number (versionNumber) is-1, the equipment metadata information is reset, the information of the Internet of things equipment data is obtained again, and the version number is reset to be 0.
Interpretation of terms:
instantiation: instantiation refers to the process of creating an object with a class in object-oriented programming, referred to as instantiation. Is the process of embodying an abstract conceptual class to the class of real objects. The instantiation process is generally composed of a class name object name (new class name) (parameter 1, parameter 2.. parameter n).
The technical scheme of the invention is as follows:
a method for managing the safety of Internet of things equipment by using memory documents comprises the following steps:
(1) initializing and generating a memory document; the memory document comprises device metadata, device state information, a modification timestamp, a version number and a document semaphore; the equipment metadata is equipment attribute information defined by a user, and the data information of the Internet of things equipment which needs to be automatically synchronized by the user is determined by defining the attribute information; the data state of the Internet of things equipment is stored in the equipment metadata, the consistency of the Internet of things equipment data and the server data is kept, and the consistency is realized through the version number and the document semaphore. The equipment state information stores the state information of each modification of the equipment metadata, and comprises data information issued by a server and data information reported by the equipment of the Internet of things; the quick data acquisition operation is used for triggering data rollback operation when the version numbers of the synchronous data are inconsistent; the modification timestamp is a time point of memory document data modification; and the log information recording of the user at the later stage is facilitated. The version number is the version of the current equipment metadata; whether the device metadata is modified is controlled by the version number. The document semaphore is a security protection mechanism for the server to acquire the data of the device memory document; for data security operations.
Generating a memory document according to a device memory object defined by a user;
the method comprises the steps that a user self-defines the data format of the Internet of things equipment in an Internet of things platform, namely the parameter type of the attribute of the Internet of things equipment, the number of parameter information of the Internet of things equipment synchronized by a memory document in the later period is determined by defining the attribute of the Internet of things equipment, the Internet of things platform is a self-developed physical equipment model management platform, an equipment development kit based on the memory document is generated according to the needs of the user, and the user obtains the memory document type of the Internet of things equipment by introducing the development kit to carry out initialization operation on the Internet of things equipment information;
(2) the internet of things equipment modifies the original state,
the method comprises the steps that a memory object of the Internet of things equipment in a server is changed, information is synchronously modified to the Internet of things equipment, the Internet of things equipment returns current information after being modified, whether data reported by the Internet of things equipment is synchronized to a memory document of the server is checked through a version number, after the modification is successful, the changed information is updated to equipment state information of the memory document, and if the modification is failed, the equipment state information is called to perform equipment memory document data rollback operation;
when the internet of things equipment data is modified and reported to the server side, the equipment metadata is updated directly through version number control, so that the equipment metadata is kept consistent with the internet of things equipment data and is used as a cache mechanism when the server side memory object is modified.
According to the preferable preference of the invention, the method for managing the safety of the equipment of the internet of things further comprises resource sharing, and the resource sharing process comprises the following steps: the resource sharing is controlled by the memory document through the semaphore mechanism, the semaphore mechanism is added in the memory object, when new Internet of things equipment is added into the memory, the semaphore mechanism corresponding to the new Internet of things equipment is generated and stored in the memory document, the semaphore is acquired before the Internet of things equipment is modified, other threads are controlled not to access the same resource at the same time, and the semaphore is released and other threads waiting for the resource are awakened after the Internet of things equipment is modified.
Preferably, according to the present invention, the initialization operation of the internet of things device is: object information (memory objects based on the memory documents) of the memory documents corresponding to the internet of things equipment is obtained through API documents provided by the development toolkit, the object information is instantiated, and the initialized internet of things equipment value is completed through obtaining state information reported by the internet of things equipment.
Preferably, the reporting of the state information of the internet of things device is completed through a message middleware, and the data format conforms to the device state information ShawdowState in the memory document.
According to the invention, preferably, the initialization process of the internet of things equipment in the development of the user self server side, namely the initialization operation of the internet of things equipment, is the operation flow of the newly added internet of things equipment, and the information of the newly added internet of things equipment is the object information of the memory document corresponding to the internet of things equipment.
According to the invention, in the memory document synchronous Internet of things equipment, the memory document generated by initialization is assigned through version number control, after the assignment is completed, the server side of the user generates a memory document corresponding to the memory document, the equipment metadata in the memory document is initialized and is consistent with the attribute of the Internet of things equipment, and the state information of the Internet of things equipment stores the effective data of the last communication.
The data of the Internet of things equipment is consistent with the data of the server side through the composition information of the memory documents, the memory documents of the Internet of things equipment based on the memory documents can be automatically updated to the Internet of things equipment after the user operates the data of the server side, and the modified Internet of things equipment is fed back to the server side to complete the information modification process of the Internet of things equipment.
Preferably, according to the present invention, the data rollback means: the memory document records the state of the internet of things equipment before the memory is changed, and when the internet of things equipment is abnormal when the memory object is modified, the information of the internet of things equipment is rolled back according to the original state in the memory document; when the server side issues the modification state to the Internet of things equipment, the Internet of things equipment responds to the abnormity and also performs data rollback operation.
Preferably, the default value of the version number during initialization is 0, when the synchronous data of the internet of things device is sent to the server, the information of the internet of things device is received and updated to the device metadata corresponding to the memory document, at this time, only when the version number information of the synchronous data is greater than the current version number information, the device metadata of the memory document is sent to be modified, otherwise, the modification is abandoned and the synchronization failure information is returned, if the version number (versionNumber) is-1, the device metadata information is reset, the information of the internet of things device data is obtained again, and the version number is reset to be 0.
The invention has the beneficial effects that:
1. the invention adopts the memory document management equipment, backups the historical information of the equipment and provides a data source for the rollback operation of the original information of the equipment.
2. The semaphore mechanism in the memory document well controls the access of the shared resources of the memory document, and solves the problem of resource conflict in the concurrency problem.
3. The memory documents and the equipment are in one-to-one correspondence relationship, which is beneficial to the management of the equipment on the memory documents and improves the efficiency of inquiring the memory documents.
4. According to the invention, once the device memory object at the server end is modified, the memory document is the historical data information of the device object, so that the fault tolerance rate of the Internet of things platform is increased, and the document is stored at the server end in the form of the object without accessing a database, so that the efficiency is improved.
Drawings
FIG. 1 is a block diagram of a memory document according to the present invention;
FIG. 2 is a device metadata map based on in-memory documents in accordance with the present invention;
FIG. 3 is a flow chart of device management based on memory documents according to the present invention;
Detailed Description
The present invention will be further described by way of examples, but not limited thereto, with reference to the accompanying drawings.
Example 1:
the implementation provides a method for managing security of internet-of-things devices by using memory documents, as shown in fig. 1 and table 1, the mapping of the memory documents includes a showtate (device state information), a showdata (device metadata information), a timestamp (timestamp), a semppasure (semaphore mechanism) and a versionNumber (version number);
table 1: in-memory document composition
The device state information, the timestamp, the semaphore mechanism and the version number are general management modes of memory documents of the internet of things device, information operation modes of different internet of things devices are basically the same, and the device metadata information is a main storage unit of the device and provides a main data source for a user to modify and synchronize device data.
Fig. 2 shows an example of the device metadata information of the vending machine, which mainly includes the status information of the showstate vending machine and the basic data information of the showdata vending machine. The equipment management mode of the vending machine based on the memory document mainly comprises three main operations of initializing the memory document, synchronizing the memory document data and rolling back the memory document data;
initializing internal memory documents of the vending machine, firstly generating a software development kit according to basic equipment attribute information defined by a user on an Internet of things research and development platform, introducing the development kit by the user to generate an internal memory object based on the internal memory documents in a mode of instantiating the equipment object, and performing initialization assignment operation on the metadata information of the internal memory documents by the user on the basis of instantiating the internal memory document object to complete the initialization operation of the internal memory documents of the vending machine.
Synchronizing memory document data, wherein the synchronized memory document data is that vending machine equipment information is kept consistent in terminal information and user server information, basic data information of a vending machine is synchronized (equipment metadata is synchronized) based on a showstate vending machine state information unit of the memory document, as shown in an equipment metadata mapping diagram of the vending machine based on the memory document in fig. 2, the showstate vending machine state information provides two operation queues of a request and an operator, the request stores vending machine equipment terminal data and synchronizes to the server information, the operator stores data information of the server and synchronizes to the equipment terminal data information, and a data storage data format submits data for packaging based on a report of basic data of a showdata post-sale machine, including adding data, deleting data and modifying data.
And rolling back the memory document data, controlling according to a memory document version number versioning number, wherein the version number is 0 in the initialization operation, attaching three parts of a timestamp, a version number and the shopwtate synchronous data information in a data format when the equipment terminal data is sent to the server side to start data synchronization, wherein the data operation of the memory document is based on the comparison of the versioning numbers, when the memory document versioning number is greater than the version number information in the synchronous information data, starting the roll-back operation, acquiring the data information of the shopwtate and synchronizing the data information to the basic data information of the shopwata vending machine, and finishing the data roll-back operation.
Example 2:
the embodiment provides a method for managing security of an internet of things device by using a memory document, a specific operation flow is shown in fig. 3, and the method comprises the following steps:
(1) the method comprises the steps that a user defines a memory structure of equipment, basic attribute information of the equipment is set on an Internet of things equipment management platform, a software development package is generated according to the attribute setting of the user equipment, the user imports the development package to obtain a set equipment attribute class name, instantiation operation is conducted on the Internet of things equipment through the class name, initialization operation of a memory document data structure is completed through the instantiation operation to set null snapshot data, the user initially assigns the snapshot data, a timestamp is assigned according to the instantiation time, and the versioning number is initially set to be 0.
(2) After user initialization is completed, security management of the Internet of things equipment is performed based on the memory documents, the data of the memory documents of the Internet of things equipment needing to be synchronized are obtained according to the synchronous data information sent by the Internet of things equipment, before the instantiated memory documents in the step (1) are obtained, a semaphore mechanism semppasure of the memory documents is required to be obtained by the user, after obtaining success, the step (3) is carried out, when other threads for operating the memory documents are closed and releasing semaphores, the step (4) is carried out, and memory documents are rolled back.
(3) And (3) successfully acquiring instantiated memory document object information according to the step (2), modifying metadata information of the showdata device according to the synchronous data information, performing memory document version information alternation according to versionNumber version information in the synchronous data, releasing semaphore of the memory document, responding to the alternated version information to the Internet of things device after the updating is successful, and entering the step (4) for pushing response data.
(4) And (4) the user finishes the modification of the data information of the memory document according to the step (3), enters the version number operation after finishing pushing the modified information by the data modification, enables the Internet of things equipment to obtain the next version information of data synchronization, obtains the response information of the Internet of things equipment after finishing pushing, enters the step (6), finishes the operation, fails in synchronization, enters the step (5), and rolls back the memory document operation.
(5) If the user fails to acquire the semaphore of the memory document or successfully synchronizes the version information to the internet of things device, rolling back the data information of the memory document is started, operator operation information in the showstate of the memory document is acquired first, synchronous data successfully communicated last time is acquired, the version information is updated to the showdata data information, and data rolling back is completed.
(6) And (4) the user completes updating of the memory document information of the Internet of things equipment according to the step (4), pushes the updated version number information to the Internet of things equipment, completes the operation of synchronizing the Internet of things equipment information to the server side, updates the operator queue in the sharowState, stores the synchronous data of the operation and completes the data management operation of the Internet of things equipment based on the memory document.
Claims (8)
1. A method for managing the safety of Internet of things equipment by using memory documents is characterized by comprising the following steps:
(1) initializing and generating a memory document; the memory document comprises device metadata, device state information, a modification timestamp, a version number and a document semaphore; the equipment metadata is equipment attribute information defined by a user, and the data information of the Internet of things equipment which needs to be automatically synchronized by the user is determined by defining the attribute information; the equipment state information stores the state information of each modification of the equipment metadata, and comprises data information issued by a server and data information reported by the equipment of the Internet of things; the modification timestamp is a time point of memory document data modification; the version number is the version of the current equipment metadata; the document semaphore is a security protection mechanism for the server to acquire the data of the device memory document;
generating a memory document according to a device memory object defined by a user;
the method comprises the steps that a user self-defines the data format of the Internet of things equipment in an Internet of things platform, namely the parameter type of the attribute of the Internet of things equipment, the number of parameter information of the Internet of things equipment synchronized with a memory document in the later period is determined by defining the attribute of the Internet of things equipment, an equipment development kit based on the memory document is generated according to the needs of the user, and the user obtains the memory document type of the Internet of things equipment by introducing the development kit to carry out initialization operation on the Internet of things equipment information;
(2) the internet of things equipment modifies the original state,
the method comprises the steps that a memory object of the Internet of things equipment in a server is changed, information is synchronously modified to the Internet of things equipment, the Internet of things equipment returns current information after being modified, whether data reported by the Internet of things equipment is synchronized to a memory document of the server is checked through a version number, after the modification is successful, the changed information is updated to equipment state information of the memory document, and if the modification is failed, the equipment state information is called to perform equipment memory document data rollback operation;
when the internet of things equipment data is modified and reported to the server side, the equipment metadata is updated directly through version number control, so that the equipment metadata is kept consistent with the internet of things equipment data and is used as a cache mechanism when the server side memory object is modified.
2. The internet of things equipment security management method adopting the memory document as claimed in claim 1, further comprising resource sharing, wherein the resource sharing process comprises: the method comprises the steps that a memory document controls resource sharing through a semaphore mechanism, the semaphore mechanism is added in a memory object, when new Internet of things equipment is added into a memory, the corresponding semaphore mechanism is generated and stored in the memory document, the semaphore is obtained before the Internet of things equipment is modified, other threads are controlled not to access the same resource at the same time, and the semaphore is released and other threads waiting for the resource are awakened after the Internet of things equipment is modified.
3. The internet of things device security management method using the memory document as claimed in claim 1, wherein the initialization operation of the internet of things device is: and acquiring object information of a memory document corresponding to the Internet of things equipment through an API document provided by a development kit, instantiating the object information, and finishing the initialized Internet of things equipment value by acquiring state information reported by the Internet of things equipment.
4. The method for managing the security of the internet of things equipment adopting the memory document as claimed in claim 2, wherein the reporting of the status information of the internet of things equipment is completed through a message middleware, and the data format conforms to the equipment status information shardowstate in the memory document.
5. The internet of things device security management method using the memory document as recited in claim 1, wherein an initialization operation of the internet of things device is an operation flow of a newly added internet of things device, and the information of the newly added internet of things device is object information of the memory document corresponding to the internet of things device.
6. The method for managing the security of the internet of things equipment using the memory documents as claimed in claim 1, wherein in the memory document synchronization internet of things equipment, the memory documents generated by initialization are assigned through version number control, after the assignment is completed, the server of the user generates a memory document corresponding to the memory documents, the metadata of the equipment in the memory documents is initialized and is consistent with the attributes of the internet of things equipment, and the state information of the internet of things equipment stores the effective data of the last communication.
7. The internet of things equipment security management method adopting the memory document as claimed in claim 1, wherein the data rollback refers to: the memory document records the state of the internet of things equipment before the memory is changed, and when the internet of things equipment is abnormal when the memory object is modified, the information of the internet of things equipment is rolled back according to the original state in the memory document; when the server side issues the modification state to the Internet of things equipment, the Internet of things equipment responds to the abnormity and also performs data rollback operation.
8. The method for managing security of internet of things devices using memory documents as claimed in claim 7, wherein the default value of the version number at initialization is 0, when the synchronization data of the internet of things devices is sent to the server, the information of the internet of things devices is received and updated to the device metadata of the corresponding memory documents, at this time, only when the version number information of the synchronization data is greater than the current version number information, the device metadata of the memory documents is sent for modification, otherwise, the modification is abandoned and the synchronization failure information is returned, if the version number is-1, the device metadata information is reset, the data information of the internet of things devices is obtained again and the version number is reset to 0.
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