摄像机壳体

摄像机壳体

Intelligent power grid economic dispatching method based on single-point feedback and differential privacy mechanism

The invention discloses a smart power grid economic dispatching method based on single-point feedback and a differential privacy mechanism. The method comprises the following steps: establishing a smart power grid economic dispatching model; further converting the intelligent power grid economic dispatching model into a corresponding minimization problem; constructing individual regrets as performance evaluation indexes of the distributed online economic dispatching method for the distributed online economic dispatching problem; the individual regrets are used for reflecting the difference value between the total cost of the generator generating capacity and the total cost of the optimal generating capacity; and introducing a single-point feedback and differential privacy mechanism to design a distributed economic dispatching method based on surplus variables, and iteratively solving the intelligent power grid economic dispatching model according to the designed economic dispatching method ...

Multi-agent micro-grid dispatching cost consistency method based on distributed algorithm

The invention discloses a multi-agent micro-grid dispatching cost consistency method based on a distributed algorithm, and relates to the technical field of power system micro-grids, and the method comprises the following steps: randomly selecting one micro-grid agent as a starting point, and constructing a directed connection diagram comprising the micro-grid agents; based on the demand response target of each micro-grid, establishing a global cost target function; the retail market electricity price of each micro-grid i is iteratively circulated, so that the retail market electricity price of each micro-grid agent is converged to the same value, and the value is the unified final retail market electricity price; according to the unified final retail market electricity price, obtaining a scheduling instruction executed by each micro-grid agent; according to the method, in the island mode, the number of iterations is increased, and it is avoided that all micro-grid bodies exchange cost ...

Autonomous underwater vehicle trajectory tracking control method based on event triggering

The invention discloses an autonomous underwater vehicle trajectory tracking control method based on event triggering, and the method comprises the steps: constructing a kinematics model and a dynamics model of an autonomous underwater vehicle according to the system structure characteristics of a three-degree-of-freedom autonomous underwater vehicle; a motion controller of the autonomous underwater vehicle is designed based on a backstepping method, virtual control input is obtained, and a tracking error equation is obtained; designing a dynamic controller for stabilizing a tracking error by adopting a global sliding mode control method; an event triggering mechanism is introduced, tracking control is performed on the trajectory of the autonomous underwater vehicle on the basis of adopting a fixed threshold strategy to trigger control, and a sesame phenomenon is avoided. According to the method, the continuous action of the controller is avoided, the burden of controlling the linear mechanism ...

MODEL TRAINING METHOD AND DEVICE, SERVER, TERMINAL, AND STORAGE MEDIUM

The present disclosure relates to a model training method and device, a server, a terminal, and a storage medium, which belong to the technical field of communications. The method comprises: receiving data distribution information of multiple terminals, the data distribution information comprising data categories and the number of samples included in each category; selecting a training data set corresponding to the data distribution information of the multiple terminals; performing model training on the basis of the training data set, so as to obtain model parameters; sending the model parameters to at least part of the multiple terminals; receiving a training result obtained after the at least part of the multiple terminals have trained the model parameters; and updating the model parameters on the basis of the training result of the at least part of the multiple terminals, so as to obtain global model parameters.

Multi-unmanned ship course consistency control method based on self-adaptive event triggering

The invention discloses a multi-unmanned ship course consistency control method based on adaptive event triggering in the field of multi-agent cooperative control, and the method comprises the following steps: building a communication topological graph of an unmanned ship system, and building a mathematical model of each unmanned ship; further establishing a multi-unmanned ship course consistency control model based on an event triggering mechanism by utilizing an adjacent matrix of the communication topological graph; establishing a self-adaptive event triggering mechanism to obtain an expression of a triggering time interval of each agent; and substituting the designed multi-unmanned-ship course consistency control model and the distributed adaptive event triggering condition into a multi-unmanned-ship model so as to complete multi-unmanned-ship system consistency control. According to the method, the communication frequency between the unmanned ships is greatly reduced, the course of ...

Distributed online optimization method based on differential privacy mechanism

The invention discloses a distributed online optimization method based on a differential privacy mechanism, and relates to the technical field of multi-agent cooperative control, and the method comprises the steps: building a distributed online optimization problem mathematical model; constructing an online optimization method performance evaluation index according to the difference between the cost generated by the current decision of all nodes and the cost generated by the post optimal fixed decision; and a differential privacy mechanism and a theft feedback mechanism are introduced to design a distributed online optimization algorithm, and the distributed optimization model is iteratively solved according to the designed distributed online algorithm. A distributed online problem with a time-varying cost function is solved by using a forcible feedback mechanism, and real gradient information is estimated, so that updating of decision variables is guided, and the method is applicable to ...

Self-adaptive event trigger control method for flight attitude of quad-rotor unmanned aerial vehicle

The invention discloses a self-adaptive event trigger control method for the flight attitude of a quad-rotor unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicle tracking control, and the method comprises the steps: constructing a kinetic model of an unmanned aerial vehicle flight attitude system, and dividing the unmanned aerial vehicle system into a position system and an attitude system; on the basis of a classical backstepping controller, in combination with a dynamic surface control method, the influence of external interference on a system is reduced by utilizing the approximation characteristic of an RBF neural network to an unknown function; an event triggering mechanism is introduced, a threshold value switching event triggering strategy comprising a fixed threshold value strategy and a relative threshold value strategy is provided on the basis of adopting a fixed threshold value strategy to trigger control, effective control over a flight attitude ...

Tool for measuring fusing current of micro wire

The utility model belongs to the technical field of wire detection, and particularly relates to a tool for measuring the fusing current of a miniature wire, which comprises a detection box and a power supply device, the positive electrode and the negative electrode of the power supply device are both connected with wires, and the inner side of the detection box is connected with two movable seats in a sliding manner; during detection, the two movable seats are pulled through the connecting plate, the two ends of the wire rod are clamped in the two mounting seats respectively, then pulling to the connecting plate is relieved, the connector is driven to extrude and fix the wire rod between the fixing seat and the connector when the tension spring retracts, and at the moment, power equipment can be connected with a power source to conduct fusing detection on the wire rod. After fusing detection is completed, the connecting plate is pulled, the fused wire rod is not limited at the moment and ...

Distributed online energy management method for smart power grid

The invention discloses a distributed online energy management method for a smart power grid, and relates to the technical field of smart power grid energy management, and the method comprises the steps: building a communication topological graph according to the communication condition between DGs in a power grid system, and determining initial data; establishing an energy management model according to actual constraints of power generation balance and power output limitation in the smart power grid; a gradient estimator is constructed to replace real gradient information, a Bandit-based distributed online energy management method is proposed, and optimal power output of each generator is realized; according to the method, an energy management problem with an energy storage device is solved under a directed graph, a local random gradient-free estimator is constructed to replace a real gradient, and updating of output power is guided; the online distributed single-point gradient-free estimation ...

Asynchronous binary consensus chain generation method in Byzantine environment

The invention belongs to the technical field of computers, and particularly relates to an asynchronous binary consensus chain generation method in a Byzantine environment, an asynchronous node set is obtained according to alliance chain network logic and a physical topological structure, and the asynchronous node set comprises nodes executed in an asynchronous sequence and public keys corresponding to the nodes; under an asynchronous round execution condition of the asynchronous node set, generating a point-to-point network data transaction transmission link by using a preset single chain generation rule, and in each asynchronous round, linking each new block to a chain tail block of the current round through a mapping function, and the new block is verified and confirmed according to the consensus value proposed by each non-Byzantine node in the verification node set, and a consensus block is generated according to whether the voting proportion verified and confirmed meets a preset consensus ...