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176results about How to "Realize separate storage" patented technology

Encryption and decryption method, terminal device, gateway device and key management system

The invention discloses an encryption and decryption method, a terminal device, a gateway device and a key management system. The encryption and decryption method includes that a terminal sends a key seed to the gateway for gaining a request, the key seed gaining request carries at least a user identification of the terminal and an identification of the terminal. The terminal receives the key seed sent back by the gateway according to the key seed gaining request. The terminal generates a key according to the key seed, and uses the key to encrypt files to be encrypted, or to decrypt files to be decrypted. The encryption and decryption method stores the files to be encrypted or the files to be decrypted in the terminal by storing the key seed on the gateway so as to achieve storage separating the key seed from the files to be encrypted or the files to be decrypted, and to guarantee the security of the key seed. Therefore, the security of the file encryption or decryption is improved.
Owner:HUAWEI TECH CO LTD

Data storage system of the information home electrical appliance and the data processing method

The invention relates to a data storage system and data processing method for information appliances, this system includes: one or more interconnected information appliances database server, one or more family network gateway servers, and one or more information appliances data management server; the data processing method includes the information appliances on-line and off-line and data processing method for status data updating, through this data processing method, the current status of information appliances may be reflected in the information appliances data management server in real-time through the family network gateway server. With the system and method mentioned in the invention, the data and information of information appliances may be stored separately, and realizes the unified management of information appliances data, convenient for the user to acquire the data of information appliances, reduce the requirements for data storage and processing ability of information appliances themselves, it may be also favorable for operator to manage and operate the household services, and further realize the service expansion.
Owner:CHINA MOBILE COMM GRP CO LTD

Data storage method and device, computer apparatus, and storage medium

The invention discloses a data storage method, which is used for solving the problem of inefficient data inquiry of the existing database. The method provided by the invention comprises the followingsteps: acquiring data types and data states of data to be stored; selecting a database corresponding to the data type from each database as a target database according to a preset type library corresponding relationship, wherein the type library corresponding relationship records the corresponding relationship between the data type and the database; selecting a data table corresponding to the datastate from each data table in the target database as a target data table according to a preset state table corresponding relationship, wherein the state table corresponding relationship records the corresponding relationship between the data state and the data table; determining a writing speed of the target data table according to a preset speed limit rule; storing the data to be store in the target data table in the target database with the writing speed. The invention also provides a data storage device, a computer apparatus and a storage medium.
Owner:PING AN TECH (SHENZHEN) CO LTD

Solid state disk hierarchical storage method and system

The embodiment of the invention discloses a solid state disk hierarchical storage method and system. The method includes the steps that a TLC chip storage region is divided into an SLC dynamic sub-storage region and a TLC dynamic sub-storage region; data block activeness in the SLC dynamic sub-storage region and the TLC dynamic sub-storage region is monitored according to preset data monitoring strength; the data activeness of data blocks in the SLC dynamic sub-storage region and the TLC dynamic sub-storage region is compared with a preset data activeness threshold value, and if the data migration condition is met, the data blocks in the SLC dynamic sub-storage region and the TLC dynamic sub-storage region are migrated. The TLC chip is dynamically divided, flexibility of TLC chip storage data is achieved, initial data is stored to the SLC dynamic sub-storage region, along with increase of read-in data, hot data and cold data are stored according to data activeness, data access is directly completed in the SLC dynamic sub-storage region, and therefore data read speed of the TLC chip is increased.
Owner:HUNAN GOKE MICROELECTRONICS

Trash recycling method for log file system on basis of repeated data deleting

The invention provides a trash recycling method for a log file system on the basis of repeated data deleting, and relates to computer data storage methods. The trash recycling method includes the steps of initializing, parallel data processing, trash recycling and ending. According to a reference value of a data block obtained by a repeated data deleting technology, data are divided into strong data and weak data, the strong data and the weak data are respectively migrated into different segments when trashes of the log file system are recycled, and divided storage of the strong data and the weak data is realized. Data blocks in a strong data segment are low in failure rate, and the times of trash recycling are less; data blocks in a weak data segment are high in failure rate, and effective data blocks needing migration are less during trash recycling. The trash recycling method for the log file system on the basis of repeated data deleting has the advantages that the times of data block migration during trash recycling in the log file system can be reduced effectively, and performance and reliability of a flash memory system can be improved.
Owner:XIAMEN UNIV

Interface testing method and device

The embodiment of the invention provides an interface testing method and device. The method comprises the following steps of obtaining an excel file pre-stored with a test file, wherein the test filecomprises a test template file and a test data file corresponding to each test template in the test template file, the test template file is stored in at least one first worksheet page in the excel file, and the test data file is stored in at least one second worksheet page in the excel file; obtaining a target test template from the first set page, and obtaining a target test data file corresponding to the target test template from the second set page; and testing the http interface according to the target test template and the target test data file. According to the embodiment of the invention, the separation of the test template and the test data is realized, and the maintenance cost of the test case is reduced.
Owner:MIGU CO LTD

Data storage method and device, apparatus and storage medium

The invention relates to a data storage method and device, an apparatus and a storage medium, and the method comprises the steps of creating a data cluster which comprises a plurality of first attribute nodes, a plurality of second attribute nodes and a plurality of indexes; obtaining the current time and the creation time of each index in the data cluster, and for each index, determining whetherthe index meets a first migration condition or not according to the current time and the creation time of the index; creating a migration index list, and adding the indexes meeting the first migrationcondition in the data cluster into the migration index list; and determining the index meeting a second migration condition in the migration index list as a target index, and migrating the index dataof the target index from the first attribute node to the second attribute node. According to the present invention, the index data meeting the preset condition in the data cluster can be migrated, sothat the index data with different attributes can be separately stored, and the storage cost is reduced.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Seed key storage method and apparatus, and mobile terminal

The invention is applicable to the field of information security technology, and provides a seed key storage method and apparatus, a mobile terminal, and a computer readable storage medium. The methodcomprises the following steps: dividing a seed key into at least two parts of seed key information according to a preset rule; storing at least a part of the seed key information by a user and / or a third party, and storing the remaining at least a part of the seed key information in the mobile terminal. By adoption of the seed key storage method and apparatus, the difficulty of cracking the seedkey can be increased, and the security of the seed key is improved.
Owner:SHENZHEN EXCELSECU DATA TECH

Method for accurately adding rice to water in electric rice cooker and electric rice cooker

The invention belongs to the technical field of electric rice cookers, and discloses a method for accurately adding rice to water in an electric rice cooker and an electric rice cooker. The method comprises the following steps of: receiving a cooking mode selected by a user; weighing the rice in the rice storage tray; the rice in the rice storage plate is recognized by the image, and the rice typeis judged; through the pre-stored algorithm, according to the type of rice, weight and cooking mode, to determine the range of water needs to be added; obtaining the water quantity in the inner tank,and judging whether the water quantity in the inner tank meets the requirements of the water quantity range to be added, if not, reminding the user that the water quantity is incorrect; if yes, no reminder will be issued. The electric rice cooker comprises a rice storage tray located below the pot cover and above the inner tank, and a rice adding port which can be opened and closed is arranged atthe bottom of the rice storage tray. The invention realizes the accurate addition of water-rice ratio and the separation and storage of rice and water, and solves the problem of poor taste of rice caused by too long soaking time of rice and water; the invention also provides the electric cooker with one key parameter setting, causes the operation to be more convenient.
Owner:GREE ELECTRIC APPLIANCES INC

Adjustable intensive medical treatment vehicle

The invention discloses an adjustable intensive medical treatment vehicle. The vehicle is ingenious in structure and powerful in function. First, through built-in multi-group placement mechanisms, theintensive and efficient collection of different medical articles can be achieved, which facilitate storing as well as taking and picking up for medical personnel. Moreover, an infrared induction system is convenient for medical personnel to classify and store different types of medical wastes, which avoids that the exposure of medical wastes pollutes the environment and the medical personnel. Thegarbage in the waste bin can be effectively compressed by an electric pressing mode, which expands the capacity of the waste bin. According to the invention, the defects of the prior treatment vehicle are overcome. The convenience and the safety of the clinical operation can be guaranteed and the vehicle can be popularized and applied in clinical departments.
Owner:THE FIRST AFFILIATED HOSPITAL OF WANNAN MEDICAL COLLEGE YIJISHAN HOSPITAL OF WANNAN MEDICAL COLLEGE

Multi-dimensional data security storage system based on big data

The invention discloses a multi-dimensional data security storage system based on big data. The multi-dimensional data security storage system comprises an object acquisition unit, a data initial classification unit, a user unit, a processor, a self-classification unit and a storage end, the object acquisition unit is used for acquiring to-be-stored data, the object acquisition unit is used for transmitting the to-be-stored data to the data initial division unit, and the data initial division unit receives the to-be-stored data transmitted by the object acquisition unit. According to the method, the content in the data to be stored is averagely split into the number corresponding to the dispersion number, each split data to be stored is marked as a dispersion segment, each dispersion segment is randomly placed in a document with a specified attribute according to the content, and a new dispersion segment is obtained; and a storage document can be preliminarily encrypted.
Owner:湖南盈聚信息技术有限公司

Cooking equipment and control method thereof

The invention provides cooking equipment and a control method thereof. The cooking equipment comprises a container body and a drying device. The control method of the cooking equipment comprises a drying step, wherein the drying device is controlled to perform intermittent operation or power-lowering operation according to a preset power-time curve to dry materials in the container body. Accordingto the method, by controlling the drying device to operate according to the preset power-time curve in the process that the cooking equipment perform a reservation function, the materials can be dried while the problem that the temperature of the drying device continues to rise is avoided, so that the problems that the materials are cured or gelatinized or the freshness is lowered in the drying process due to too high temperature of the drying device are avoided, and the cooking taste of the materials is ensured.
Owner:FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD

Data separation and storage method and device, computer device and storage medium

The invention relates to a data separation and storage method and device, a computer device and a storage medium. The method comprises the following steps: acquiring each piece of user data of a target user; respectively determining a period in which the generation time of each piece of user data of the target user is located; and separately storing each piece of user data of the target user intoa plurality of databases according to the period of each generation time. By adopting the method, cold and hot data separation can be realized, the calculation mode can be simplified, and the hysteresis quality of newly generated data separation and storage can be avoided.
Owner:SUNING CLOUD COMPUTING CO LTD

Pluggable type hardware encryption storage method and system

The invention provides a pluggable type hardware encryption storage method and system. The method includes the following steps that (1) metadata needing to be stored is split into a number of data packets; (2) the data packets are stored randomly, and a key file is formed; (3) the key file is stored in pluggable type hardware; (4) the pluggable type hardware is pulled out, and encryption is achieved. The storage system includes a mainframe, a solid-state hard disk, a secret key and a pluggable type hardware, wherein the solid-state hard disk, the secret key and the pluggable type hardware are arranged on the mainframe. According to the method and the system, information separation storage of a header file and actual data can be achieved, when the pluggable type hardware is pulled out, the specific location in which the data is located and the corresponding order of data is not found, and data information can not be obtained, the encryption function is achieved, conditions are provided for the safety of the solid-state hard disk and the multi-user use, and when the system is used by multiple users, the safety of the data of each user can be effectively ensured.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD

Product configuration method and system supporting multilevel platform

ActiveCN107403272ARealize managementEliminate structural redundancyResourcesBill of materialsComputer module
The invention discloses a product configuration method and system supporting a multilevel platform. According to the method, an enterprise-level product platform main structure is established according to division of a product platform in an enterprise; all sub-platform main structures and a bottommost product family main structure are sequentially established on the basis of the enterprise-level product platform main structure; according to a product configuration demand, a variable condition is defined for a module selected by the product family main structure; according to the product configuration demand, whether a sub-module meeting the variable condition exists in the product family mains structure is judged, and whether the sub-module is associated with the variable condition is judged; the product platform main structure is traversed according to a product configuration demand table, assignment is performed on node variables, and a constraint relation and the module not meeting the demand are removed till all the variables are subjected to assignment; and finally a product variable general bill of materials (BOM) containing the variable condition is screened out, instance components are used to replace corresponding nodes in the product variable BOM, an engineering general BOM is formed, and a design result is output.
Owner:SHANDONG UNIV

Automatic pineapple picking method

The invention discloses an automatic pineapple picking method. A vehicle body (28) is involved in the method and provided with a turntable (30), multiple vacant places (36) are arranged on the turntable, pressure sensors (32) are arranged in the vacant places, and a picking execution mechanism is arranged on the turntable (30); a control system (1) is arranged on the picking execution mechanism, acamera bracket (27) is arranged at the front end of the vehicle body (28), and a visual collection system is arranged above the camera bracket and includes a first camera (25) and a second camera (26). A finger clamping system can achieve grasping of fruits. A mechanical arm can achieve accurate motions such as grasping and twisting. The fruit placing turntable (30) can achieve separated storageof the fruits. The visual collection system can not only accurately determine the positions of the fruits but also judge whether or not pineapples are ripe. The ripeness can be effectively judged, thecontrol scheme is simple, and the method can be effectively applied to operation of fruit farmers.
Owner:GUANGDONG UNIV OF TECH

Like data storage method and device

The embodiment of the invention provides a like data storage method and device, and the method comprises the steps: responding to a like data writing operation, determining a like data type corresponding to like data requested to be written, wherein the like data type comprises a cold data type or a hot data type; determining a database corresponding to the like data requested to be written according to the corresponding relation between the database type and the like data type, wherein the database type comprises a memory type or a disk type; and storing the like data requested to be writteninto a corresponding database. According to the technical scheme provided by the embodiment of the invention, the memory consumption of the like data can be reduced, and the stability of the like database in a read-write high-concurrency state is improved.
Owner:北京龙之心科技有限公司

Supersonic swirling capture treatment system for flue gas

The invention discloses a supersonic swirling capture treatment system for flue gas. The system consists of a flue gas pipeline, a compressor, a hydrocyclone separation pipe and a collection device. One end of the flue gas pipeline is connected to a flue gas pipeline of a production system, and the other end is connected to the compressor inlet, the compressor outlet is connected to the inlet of the hydrocyclone separation pipe, the hydrocyclone separation pipe includes a jet expansion section, a hydrocyclone separation section and a diffusion deceleration section, and the collection device is arranged below a water outlet to collect condensate liquid. Compared with the prior art, according to the supersonic swirling capture treatment system for flue gas provided by the invention, flue gas is pressurized and accelerated and then jetted into the hydrocyclone separation pipe, hydrocyclone separation is carried out to realize stripping of moisture in flue gas, and separation and storage of carbon dioxide in the flue gas can be realized. The system has the advantages of small land occupation, easy operation, large treatment capacity, low energy consumption, convenient maintenance, etc.
Owner:SOUTHWEST PETROLEUM UNIV +1

Data search and storage methods, data search system, devices, equipment and medium

The embodiment of the invention discloses data search and storage methods, a data search system, devices, equipment and a medium. The method comprises the steps of obtaining a data search request, wherein the data search request comprises search data resources and data query conditions; querying a search engine according to the data search request to obtain a search result of the search engine; querying a storage engine according to the data search request and the search result of the search engine to obtain a search result of the storage engine; and combining the search result of the search engine and the search result of the storage engine to obtain a target search result. The embodiment of the invention can reduce the storage cost of the search engine and improve the storage efficiencyand the search efficiency of the business data.
Owner:NANJING LINGXING TECH CO LTD

Precision power supply instrument damp-proof storage box

The invention provides a precision power supply instrument damp-proof storage box, and belongs to the technical field of power equipment. The storage box comprises a box body, a box cover arranged atthe top of the box body, a bracket arranged inside the box body and used for supporting an instrument, and a plurality of partition plates, wherein the cavity above the bracket is partitioned into a plurality of instrument storage cavities, the bottoms of the partition plates are perpendicularly connected with the bracket, the tops of the partition plates abut against the bottom wall of the box cover, a containing cavity is formed inside, a first drying agent is arranged inside the containing cavity, and the containing cavity is communicated with the instrument storage cavities through first vent holes formed in the side walls of the partition plates; a drying box is further arranged inside the box body, the drying box is located below the bracket, a second drying agent is arranged insidethe drying box, the containing cavity is communicated with the drying box, and a third vent hole communicated with the drying box is formed in the bracket. According to the precision power supply instrument damp-proof storage box, the technical problem that the damp-proof effect of an existing instrument storage box is poor is solved.
Owner:STATE GRID HEBEI ELECTRIC POWER CO LTD +1

Refrigerator drawer and refrigerator

The invention discloses a refrigerator drawer and a refrigerator. The refrigerator drawer comprises a drawer body and a partition, the drawer body is provided with an accommodation cavity, the partition is inserted with the side wall of the accommodation cavity, and the accommodation cavity is partitioned into various chambers. In this embodiment, the partition is connected with the side wall of the accommodation cavity in an inserted manner, so that the partition can divide the accommodation cavity into various chambers, each chamber of the accommodation cavity can store different articles, foods which cannot be stored in the same space are separately stored, the stored foods cannot be mutually tainted, needs of people are met, adaptability of the drawer is improved and convenience in use of the refrigerator is improved.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +1

Data storage method, data security apparatus and data storage system

The invention provides a data storage method, a data security apparatus and a data storage system. The data storage method comprises: obtaining first startup information of private cloud bound with the private cloud, a user key and a protective key of the user key, encrypting the user key by utilizing the protective key, and storing the first startup information, the protective key and the encrypted user key; receiving a storage instruction, wherein the storage instruction carries target data and second startup information of the private cloud bound with the private cloud; generating an authorization instruction carrying the second startup information, wherein the authorization instruction is used for indicating operation of decrypting the user key by utilizing the protective key; and when the second startup information is the same as the first startup information, decrypting the user key by utilizing the protective key according to the authorization instruction, encrypting target data through the user key, and sending the decrypted target data to public cloud to perform storage. Through the technical scheme provided by the invention, the security of the target data can be improved.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Data processing method and system based on power transaction

The invention relates to the field of information technology security, provides a data processing method and system based on power transaction, and is used for solving the problem of power transactiondata leakage. In the data processing method based on power transaction, a cloud is provided, and the method comprises the steps: S10, carrying out the real-time fixed-point sampling of power transaction data in a region, obtaining an instant data value and a real-time change increment, partitioning, encrypting and numbering the data, and randomly storing the data in a plurality of servers; and S20, storing the serial number of the encrypted data instead of the data in the blockchain. And the security of data storage is improved.
Owner:广州电力交易中心有限责任公司

Magnetic bead chemiluminiscence detection kit

InactiveCN109270261AAvoid mobilityAvoid collision issues with box lidsMaterial analysisMagnetic beadShake up
The invention discloses a magnetic bead chemiluminiscence detection kit, and belongs to the technical field of chemiluminiscence detection. According to the technical scheme, the magnetic bead chemiluminiscence detection kit comprises a box, a box cover, agent bottles, a magnetic bead bottle and a bracket; the box comprises an upper box and a lower box; the upper box and the lower box are not communicated; the box cover is hinged to the upper box; the lower box is a sliding drawer; a gasket made from hard plastic foam is arranged in the upper box; bottle grooves are formed in the gasket; the bottle grooves comprise a magnetic bead bottle groove and multiple agent bottle grooves; the magnetic bead bottle groove is matched with the magnetic bead bottle in size, and the agent bottle grooves are matched with the agent bottles in size. According to the magnetic bead chemiluminiscence detection kit, a storage space can be reasonably planned, objects are convenient to store and reclaimtake, the agent bottles and the magnetic bead bottle are stored safely and stably, and immunomagnetic beads can be automatically shaken up, so that the trouble of shaking up the immunomagnetic beads manuallyis omittedavoided.
Owner:上海裕隆神光医学检验实验室有限公司

Data transmission method, device and system, equipment and storage medium

The invention provides a data transmission method, device and system, equipment and a storage medium. The method comprises the steps of obtaining a key request sent by a terminal, wherein the key request comprises a data type of the user data; determining a symmetric key from a preset symmetric key mapping table according to the data type, wherein the symmetric key mapping table is a one-to-one mapping relation table of data types and symmetric keys; encrypting the symmetric key by using the terminal public key to obtain a first ciphertext; and sending the first ciphertext to the terminal, sothat the terminal decrypts the first ciphertext by using the terminal private key to obtain a symmetric key, and decrypts the encrypted data by using the symmetric key to obtain user data. According to the method, user data is stored outside the wearable device in a ciphertext mode, the symmetric key is stored on the wearable device, separate storage of the user data and the symmetric key is achieved, and the symmetric key is transmitted to the wearable device in a ciphertext mode.
Owner:GIESECKE & DEVRIENT (CHINA) INFORMATION TECH CO LTD

Volatile liquid storage device

The invention discloses a volatile liquid storage device, comprising a rectangular tank body, two support blocks are fixed at the bottom of the rectangular tank body, and a liquid storage space and a gas storage space are respectively provided on both sides of the bottom of the rectangular tank body, Both sides of the rectangular tank body are respectively provided with a liquid injection pipe and a liquid discharge pipe, the liquid injection pipe and the liquid discharge pipe are both equipped with a liquid valve core, and one end of the liquid injection pipe and the liquid discharge pipe is provided with There is a connection port, a compression space is arranged inside the top of the rectangular tank, and a first through hole connecting the top of the gas storage space and the bottom side of the compression space is arranged inside the rectangular tank. The invention realizes the separation and storage of liquid and excess gas, thereby reducing the influence on the liquid storage part and the influence of air pressure on the connecting parts. In addition, the device can compress the volatilized air, and re-form the liquid after compression, thereby reducing the liquid's loss, strong practicality.
Owner:叶哲企

Desilting structure and hydraulic engineering desilting device

The invention discloses a desilting structure and a hydraulic engineering desilting device and belongs to the technical field of hydraulic engineering. The desilting structure comprises a bucket bodyand prodding claws. The bucket body comprises a feeding portion, a connecting portion and a silt storage portion which are connected in sequence. The bottom of the feeding portion is arranged obliquely. The bottom of the silt storage portion is arranged horizontally. The highest end position of the feeding portion and the silt storage portion are connected through the connecting portion. The prodding claws are fixed to a drum. The multiple prodding claws are distributed in the radial and circumferential directions of the drum. A gap exists between every two adjacent prodding claws. The prodding claws are each of an L-shaped structure. The outer edges of the prodding claws are opposite to the feeding portion. An impurity portion is arranged on the upper portion of the silt storage portion.An oblique partition plate is arranged between the impurity portion and the silt storage portion. The top end of the partition plate is opposite to the outer edges of the prodding claws. The desiltingstructure and the hydraulic engineering desilting device have the beneficial effects that when desilting is performed, silt is separated from stones, large-size impurities and the like inside, separated storage is achieved, the stones, large-size impurities and the like in the silt are prevented from damaging equipment or the device in the moving process, and the reliability is high.
Owner:聂海涛

Safety medicine taking system

The invention provides a safety medicine taking system. The safety medicine taking system comprises a medicine box, a bracelet and a remote monitoring device, wherein the remote monitoring device communicates with the bracelet in time, a controller and a reminding device are arranged on the bracelet, and the medicine box receives a timing signal sent by the bracelet to deliver medicine at fixed time. The remote monitoring device can be a mobile phone or a computer and communicates with the bracelet through a wireless network or a mobile phone network to feed back the medicine use condition of a user to the remote monitoring device, and a guardian can take necessary measures according to the feedback information.
Owner:GUANGDONG INST OF SCI & TECH

Different matter state separating type blending bottle

The invention relates to a different matter state separating type blending bottle. The blending bottle comprises a central column, a barrel, a bottle cap and a bottle body. A plurality of threaded parts are arranged at the lower end of the central column. The upper portion of the central column is in seal fit with the bottle cap. The barrel is of a cylinder structure, a plurality of protruding keys are arranged on the upper portion of the barrel, and a plurality of internal threads are arranged on the lower portion of the barrel. A plurality of holes are formed in the internal threads. The number of the internal threads is equal to that of the threaded parts, and the internal threads are in seal fit with the threaded parts. A round hole is formed in the center of the bottle cap. A bottle opening is formed in the upper portion of the bottle body and provided with an external thread and a plurality of inwards-sunken grooves. The lower portion of the bottle body is provided with a container used for containing a kind of objects. The inwards-sunken grooves are used for clamping the protruding keys. The bottle cap, the barrel and the central column form a plurality of sealed spaces used for storing other objects. Through the novel structure design, different objects can be stored independently and can be easily blended together when necessary, and the blending bottle has the advantages of being convenient to use and the like.
Owner:青海纳瑞亚生物科技有限公司

Cache protection method and device based on dynamic mapping mechanism

The embodiment of the invention provides a cache protection method and device based on a dynamic mapping mechanism. The method comprises: when a processor sends an instruction for requesting reading operation to a cache, comparing an address of request data of the processor with a cache address of data cached in the cache in an address table, and determining whether the address of the request datahits a certain table item in the address table or not; if the table entry is hit, inquiring a valid bit table corresponding to the table entry, determining whether the table entry is in a valid stateor not, if so, obtaining a data row address corresponding to the request data from the association table, and taking out the request data from the data table; and if the missed or hit table entry isin an invalid state, the cache sends a missing signal to force the processor to acquire data corresponding to the read request operation from the main memory. According to the embodiment of the invention, the cache access time is balanced, time sequence information is prevented from being utilized, and the security of the processor is improved.
Owner:CHINA AGRI UNIV
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