The present invention relates to a sensitive user data processing system and method. The system comprises a unified external network access subsystem and a data access subsystem; the unified external network access subsystem is used for receiving a service request which comes from a user side and is used for obtaining sensitive user data, and forwarding the service request to a corresponding service processing system; the data access subsystem is used for receiving a data request triggered by the service processing system according to the service request, reading corresponding sensitive user data according to the data request, generating data request feedback data according to the read sensitive user data and feeding back the data request feedback data to the service processing system; and the unified external network access subsystem is used for receiving service feedback data which are sent by the service processing system and are generated according to the data request feedback data, and feeding back the service feedback data to the use side. With the sensitive user data processing system and method provided by the invention, the sensitive user data is controllable in a processing process, and security can be improved.

Sensitive user data processing system and method

The invention discloses an internet lightweight application load balancing realization method based on cloud platforms. The method comprises the following steps that 1, internet lightweight applications are established on virtual servers and then connected with a social platform, and the social platform acts as an entry of accessing the internet lightweight applications; 2, the virtual servers on which the internet lightweight applications are established are deployed on different cloud platforms, and data synchronization between the virtual servers is maintained; 3, price cost of operation of the virtual servers on different cloud platforms is confirmed under the premise that service quality provided by the cloud platforms meets the requirement of the applications; 4, the cloud platform with the optimal expected price is selected for service, and the virtual server on the cloud platform is started; and 5, server switching is realized by changing virtual server access addresses. The appropriate cloud platform is switched on for service for users by the system according to the optimal expected price obtained by load characteristics and resource consumption without awareness of the users so that load balancing can be realized.

Internet lightweight application load balancing realization method based on cloud platforms

The invention belongs to the technical field of cloud computing-based resource scheduling and in particular provides a resource scheduling method based on dynamic gaming in a cloud environment. The method comprises the steps of building a model of resource scheduling based on dynamic gaming in a cloud environment; based on the model of resource scheduling based on dynamic gaming, distributing priority of resource selection user task attributes; employing a strategy that those who apply first select distribution priority first for users with the same task attributes and defining the earnings of each user as the satisfaction degree of QoS; obtaining a Nash equilibrium solution of the gaming by using a backward induction method. For the problem of resource competition caused by simultaneous submitting of tasks by users in a cloud environment, the method builds the cloud environment dynamic gaming resource scheduling model, performs modeling and analysis on resource competition between the users by using the dynamic gaming theory, and satisfies the QoS requirements of all the users as much as possible; the method meets the requirement of each user to the greatest extent; the method obtains a Nash equilibrium solution of the dynamic gaming model by using a backward induction method, thereby achieving the most reasonable and effective allocation of resources.

A resource scheduling method based on dynamic gaming in a cloud environment

The invention discloses a networking method of WSN (Wireless Sensor Networks) based on a backup node. The method comprises the following steps: positioning the positions of sensor nodes; determining the communication distance between two nodes within the sensing range of the sensor nodes; generating a tree topology through the layer upon layer transfer of a broadcast command; in the broadcasting process, judging whether the nearest child node has the qualification to be the backup node to set the backup node by each node except a Sink node; and finally, the service life of the WSN is effectively prolonged by reducing the number of network nodes on the tree topology through the backup node. The networking method of the wireless sensor networks based on the backup node provided by the invention has the advantages of reducing the number of network nodes of the WSN and extending the lifetime of the entire network, and is suitable for the WSN which randomly deploy sensor nodes.

Networking method of wireless sensor networks based on backup node

The invention relates to a computing element migration method based on aggregate utility. The method comprises the following steps of S1.adopting a BP neural network to predict a CPU utilization rate of a computing unit of each computer node; S2.aggragating the CPU utilization rates of the computing units to obtain predicted values of the next moment and determining the computer nodes of the computing units that need migration according to the CPU utilization rates; S3.carrying out normalization processing on the predicted values of the CPU utilization rates and the memory sizes; S4.sorting ratios of the predicted values of the CPU utilization rates of the computing units, which are selected at the next moment, to the memory sizes of the computing units; S5.determining a target computing unit set that needs migration; and S6.selecting the migrated computing units according to the memory sizes of the computing units. According to the method, the CPU utilization rates of the computer nodes and the computing units can be accurately predicted, a condition that the target computing units migrate when the resource competition is outstanding is avoided, the load condition of the computer nodes in a distributed system is relieved to a greater extent, and the target computing units with the lowest migration cost can be selected to carry out efficient migration.

Computing element migration method based on aggregate utility

The invention relates to a game resetting method for virtual machines capable of controlling energy consumption. The method includes the first step of placing all physical nodes into three combinations in an ascending sort order according to the number of the virtual machines borne by the physical nodes, the second step of calculating future load values of a CPU, the internal memory and the network on the physical nodes in an R3, the third step of grouping the physical nodes not performing transferring of the virtual machines into three groups according to the future load conditions of the CPU, the internal memory and the network, the fourth step of carrying out pretreatment on selection of destination physical nodes according to the node collection which source physical nodes belong to, the fifth step of calculating the energy consumption variable quantity of each node when each virtual machine to be transferred is placed in a corresponding candidate set, wherein suppose that the maximum physical node corresponding to the virtual machine is Pi, selecting the destination physical nodes corresponding to the virtual machines to be transferred through a game playing algorithm with the overall energy consumption optimization as an objective if the physical nodes with the maximum energy consumption variable quantity corresponding to the virtual machines are the same, and then placing the virtual machines on the corresponding physical nodes again. According to the method, prediction accuracy of the future load can be improved by removing error data.

Game resetting method for virtual machines capable of controlling energy consumption

The invention provides a two-layer sensor network range query system with a privacy protection function and a query method in order to overcome the defects that an existing two-layer sensor network is large in communication traffic, large in energy consumption and short in survival time. The system comprises Sink nodes, storage nodes and sensing nodes. The Sink nodes send query requests to the storage nodes and carry out integrity verification on query results returned by the storage nodes; the storage nodes are used for responding to the query requests of the Sink nodes, storing data transmitted by the sensing nodes and returning the data of the corresponding sensing nodes to the Sink nodes according to a query range; the sensing nodes are used for sensing the data, encrypting the data and transmitting the data to the storage nodes. The two-layer sensor network range query system can ensure confidentiality of the data of the sensing nodes and can effectively carry out the integrity verification on the query results returned by the storage nodes. The query method can effectively reduce data transmission quantity and prolong the service life of wireless sensor networks.

Two-layer sensor network range query system with privacy protection function and query method

The invention relates to a Skyline inquiry system and method of a two-layer sensor network for privacy protection and relates to the technical field of wireless sensor network communication and data inquiry processing technologies. The inquiry system and method comprise the following steps that: a Sink node sends an inquiry command to a storage node of an inquiry unit, and the storage node broadcasts the inquiry command to a sensing node in the inquiry unit; 2) the sensing node receives the inquiry command and sends a ciphertext of sensed data and coding data to the storage node; 3) the storage node after receiving the data from the sensing node calculates a ciphertext inquiry result through the coding data and sends the ciphertext inquiry result to the Sink node; 4) the Sink node decrypts to obtain a final inquiry result. As the storage node calculates out the ciphertext inquiry result through the coding data, a data inquiry function is realized. Therefore, the privacy leakage problem of sensing data is solved.

Skyline inquiry system and method of two-layer sensor network for privacy protection

The utility model discloses a pond feeder control system based on wireless sensor network, including pond feeder, its characterized in that: still include ultrasonic sensor, AD conversion module, signal transmission system and controller, ultrasonic sensor be connected with AD conversion module, AD conversion module be connected with signal transmission system, signal transmission system be connected with the controller, controller and pond feeder in the material control module that throws be connected. The utility model discloses an advantage does: can survey in the pond data of the shoal of fish in the certain limit, the input fish of intelligence eats, temperature and oxygen bearing data in the detection pond that can be timely provide data for in time adjusting in the pond oxygen and temperature, can discover in time that feeder does not have the material to in time send out police dispatch and offer out the warning.

Wang Taochun

Papers

Game resetting method for virtual machines capable of controlling energy consumption

Two-layer sensor network range query system with privacy protection function and query method

Skyline inquiry system and method of two-layer sensor network for privacy protection

Networking method of wireless sensor networks based on backup node

Pond feeder control system based on wireless sensor network