277results about How to "Achieve unified control" patented technology

The invention discloses a control method for a sliding mode converter control structure of an active power filter containing a parameter perturbation, which comprises the following steps: firstly, building a state space mathematical model under an abc coordinate system; converting the state space mathematical model to be under a dq coordinate system to obtain a uniform mathematical model by taking dq components of harmonic current and capacitor voltage on a direct-current side as state variables; constructing a sliding mode surface; decoupling the sliding mode surface for control; defining a control rate; carrying out inverse transformation on the control rate to obtain an effective control rate; constructing an integral sliding mode surface; and redefining a new control rate, so as to finally obtain a PWM (Pulse-Width Modulation) signal for driving a switch tube. The control method adopts the sliding mode converter structure, so that current tracking and the capacitor voltage on the direct-current side are uniformly controlled. The sliding mode converter control structure is simple in design and is easy to realized, has good robustness on the internal parameter perturbation and internal interference of a system and has good dynamic performance, and the current variation can be quickly tracked when a load is suddenly changed.

The embodiment of the invention provides a method and a device of realizing a data cache layer, electronic equipment and a readable storage medium, which can select data, which need to be cached, through a manner of flexibly configuring annotations, reduce intrusion of service code, and realize unified control of caching. The method includes: introducing a cache-layer jar package into a service layer; parsing a cache-layer configuration file, and configuring cache configuration parameters; configuring the cache annotations in a service method according to the cache configuration parameters; and realizing caching and/or querying of data according to the cache annotations when the service method is invoked.

The invention discloses a control method and a control system for hybrid MMC uninterrupted operation. The control method comprises the following steps: acquiring the alternating current output voltagereference values of each phase of upper and lower bridge arms, acquiring a direct current voltage reference value, acquiring the negative sequence frequency-doubled circulating current restraint reference voltage of each phase of upper and lower bridge arms, acquiring the zero sequence circulating current compensating potential reference value, and generating a driving signal. The control systemcomprises an alternating current control device, a direct current control device, a negative sequence circulating current restraint control device and a driving signal synthesis device which are usedfor acquiring the alternating current output voltage reference values of each phase of upper and lower bridge arms, the direct current voltage reference value, the negative sequence frequency-doubledcirculating current restraint reference voltage of each phase of upper and lower bridge arms, the zero sequence circulating current compensating potential reference value and the driving signal. Alternating current positive and negative sequence current can be uniformly controlled, alternating current negative sequence current and bridge arm zero sequence ring current are restricted, direct current side current is controlled, and uninterrupted operation is finally realized.

The invention discloses a networking system and a networking method. The networking system comprises a platform server, a router, a first intelligent household appliance and a second intelligent household appliance, wherein the router is connected with the platform server, and the first intelligent household appliance and the second intelligent household appliance are communicated with the router. The platform server is used for transmitting a first operation strategy to the first intelligent household appliance, and the first intelligent household appliance is used for performing operations corresponding to the first operation strategy after receiving the first operation strategy; and/or, the platform server is used for transmitting a second operation strategy to the second intelligent household appliance, and the second intelligent household appliance is used for performing operations corresponding to the second operation strategy after receiving the second operation strategy. According to the networking system and the networking method, the first intelligent household appliance and the second intelligent household appliance are connected to the platform server, and the platform server transmits the operation strategies to the first intelligent household appliance and the second intelligent household appliance, so that barriers formed among different household appliance manufacturers can be overcome, information sharing of each intelligent household appliance is achieved, and uniform control of the first intelligent household appliance and the second intelligent household appliance is implemented through the transmitted operation strategies.

The present disclosure relates to a live broadcast back-to-source aggregation method, a device, a system, equipment and a storage medium, the method comprises: receiving a back-to-source request sentby a network node in a content delivery network, wherein the back-to-source request is used for requesting to obtain a resource address of a live broadcast resource; determining the resource address of the live broadcast resource based on the attribute of the live broadcast resource, the determined resource address being a source station address or an intermediate source address in the content distribution network; and returning the obtained resource address to the network node. According to the method, the unified control of the back-to-source addresses is realized, the back-to-source addresses are aggregated into one path, the consumption of the back-to-source bandwidth is reduced, and the bandwidth cost is saved.

The invention relates to a wheeled mobile robot trace tracking control method based on energy saving consideration, and belongs to the field of robot control. The method comprises the following steps that according to energy consumption characteristics of a wheeled mobile robot, the energy consumption optimization of a driving motor during cruising of the robot is intensively considered, and a motor energy consumption model is built; according to the trace tracking characteristic of the wheeled mobile robot, a kinematic model and a tracking error model are built, and a kinematic tracking sub controller is designed; a correlation model of the kinematic model and the motor energy consumption model is built according to an inherent correlation mechanism between the kinematic model and the motor energy consumption model; finally, an energy-saving sub controller is obtained, so that the wheeled mobile robot trace tracking control method based on energy saving consideration is obtained. The wheeled mobile robot trace tracking control method has the advantages that the global stability of a system and the high-precision and low-energy-consumption control of the whole process of the wheeled mobile robot can be controlled, so that the precise trace tracking is realized, and meanwhile, the energy optimization is realized.

The invention provides an intelligent household equipment control method and apparatus. The method comprises the following steps: control end grouping intelligent household equipment, obtaining grouping configuration, and specifying one master control device for grouping; the control end sending a master control command to the master control device; the master control device, according to the grouping configuration, sending a general control command to each response device in groups; a server converting the general control command into a specific control command corresponding to the model of each response device; the server sending each specific control command to the corresponding response devices; and the control end receiving and displaying feedback information fed back by the response devices after the response devices execute the specific control commands. The intelligent household equipment control method and apparatus provided by the invention can realize communication between the intelligent household equipment, can also realize unified control of different intelligent household equipment brands, better optimizes life styles of people, and helps the people to arrange time effectively.

The invention is applicable to the technical field of network security, and provides an interface security control method in network security, and an interface security control terminal device. The method comprises the following steps: receiving an HTTP request sent by a client, and parsing the request to obtain a URI, and determining a corresponding security policy, wherein the security policy comprises one or more of signature verification, user authentication, replay verification and black list and white list verification; verifying the HTTP request according to the security policy; if theHTTP request passes the verification, determining a current limiting policy corresponding to the URI; verifying the HTTP request according to the current limiting policy; if the HTTP request passes the verification, determining a micro service interface corresponding to the URI, and forwarding the HTTP request to the micro service interface; and receiving a response returned by the micro service interface, and sending the response to the client. A public network request can be intercepted, verified and the like, unified control of the security of the micro service interface is achieved, and the direct interaction between an external network and the micro service interface is avoided to ensure the security of the micro service interface.

The invention discloses a uniform prediction control method for quasi-Z source inverter-permanent magnet synchronous motor systems. According to the method, stator current d and q axis components areobtained through coordinate transformation, each control variable is obtained through a delay compensation link, a torque given value is obtained through a rotation speed closed loop, and d and q axiscurrent given values are obtained to calculate a stator flux linkage given value; an inductive current given value is calculated through a power compensation manner so as to obtain an inductive current critical value; and an optimum vector is judged according to a relationship between inductive current and the inductive current given value so as to obtain each control variable at the next moment,the control variables at the next moment are substituted in an evaluation function to obtain an optimum vector, and a switch state corresponding to the optimum vector is output to an inverter. The uniform prediction control method is capable of decreasing the operand of controllers, avoiding the influences, on prediction control of quasi-Z source inverter-permanent magnet synchronous motor systems, of quasi-Z source inverter negative modulation, realizing the uniform prediction control of quasi-Z source inverter-permanent magnet synchronous motor systems, and solving the control conflict problems in two-stage control.

The embodiment of the invention provides a control method of equipment, a client side, a server, intermediate equipment and controlled equipment. The control method of the equipment includes the steps of obtaining information of the intermediate equipment and information of the controlled equipment related to the intermediate equipment, sending a resource downloading command carrying the information of the intermediate equipment to obtain resources to the server so that the corresponding intermediate equipment obtains the corresponding resources through the server, sending an operation instruction to the controlled equipment related to the intermediate equipment so that the controlled equipment can obtain the corresponding resources from the intermediate equipment according to the operation instruction to execute related operations. The control method of the equipment solves the distance limit question occurring when the controlled equipment carries out control operations, a user only needs to log in the client side to control the controlled equipment at any time in any place, convenience is brought to the user, and user experience is improved.

The invention discloses a method for controlling an intelligent device by a router. The method comprises following steps of sending a request for logging in a user account to an internet of things server, thus logging in the user account, wherein the request comprises the user account and a user account password; receiving a control instruction which is sent by an intelligent terminal through adoption of the internet of things server and is specific to the intelligent device bound with the user account, wherein the control instruction comprises the device ID of the intelligent device; forwarding the control instruction to the corresponding intelligent device according to the device ID and a device address; receiving the execution result of the intelligent device specific to the control instruction; and forwarding the execution result of the intelligent device specific to the control instruction to the intelligent terminal by the internet of things server. The invention also discloses the router. According to the method and the router, the intelligent terminal can control the intelligent device remotely.

The invention provides a mobile power source renting system and mobile power source renting cabinet. The system comprises a cloud server and a mobile power source renting cabinet, and the renting cabinet comprises a cabinet body, a main control module, multiple mobile power source storage cabins and a wireless communication module; each mobile power source storage cabin comprises a cabin door, an accommodation groove rail, a driving stress wheel, a first synchronous transmission mechanism, a second synchronous transmission mechanism, a first driving motor, a second driving motor and a control circuit board which is connected with the main control module. By making the two synchronous mechanisms arranged at the same side of the mobile power source storage cabins, making the first synchronous transmission mechanism located above the second synchronous mechanism, and making the two driving motors arranged at the rear end in the mobile power source storage cabins, the structures among all parts are compact, the overall space utilization rate is increased, on the condition that mobile power sources with the same number are accommodated, the cabinet body is smaller in size and less in occupied area, and the flexibility of the placing position of the mobile power source renting cabinet is increased.

The invention provides a novel code grouping smart remote control lamp circuit. The code grouping smart remote control lamp circuit is mainly composed of a remote control transmission circuit with a code grouping module and a plurality of remote control receiving circuits, wherein each remote control transmission circuit comprises a plurality of transmission keys which are mainly a switch key, a grouping key, a color key and a luminance key, each remote control receiving circuit is connected with four paths of external LED (light emitting diode) output, and the four paths of the LED output are respectively connected with four colors of LEDs which are white, red, green and blue. The coding grouping smart remote control lamp circuit can achieve the purpose that the remote control transmission circuit sets a single group of the receiving circuits or uniformly sets all the receiving circuits through grouping pairing.

The invention discloses a control system and a control method for a coaxial cable production line. The system comprises a control panel, a display device, a special controller, a copper wire feeding machine, a cleaning machine, a heater, a shaping die, an insulation layer coating machine, a foaming machine, a polyester feeding machine, an aluminum foil coating machine, an aluminum foil feeding machine, a first image identifier, a high-speed weaving machine, an aluminum line feeding machine, a winding degree sensor, a pitch sensor, a protecting sleeve machine, a polyvinyl chloride feeding machine, a second image identifier and a wire winding machine. The system has the advantages that each production equipment of the production line is uniformly controlled by the special controller, and the automation level of the production line is improved; by additionally arranging the image identifier, the winding degree sensor and the pitch sensor, the production process can be monitored in real time, and the qualified rate of products is improved.

The invention provides a halfling-shaped intelligent robot and a control system thereof. An environment sensor sends measured environment information to a task manager; the task manager issues operation tasks to an upper body movement planning device and a chassis movement planning device based on the environment information and task instructions; the upper body movement planning device generatesa mechanical arm joint angle sequence based on the operation tasks and sends the mechanical arm joint angle sequence to a joint servo controller so that the operation tasks can be completed; and the chassis movement planning device generates a chassis motor rotation speed sequence based on the operation tasks and sends the chassis motor rotation speed sequence to a chassis motor controller so thatthe operation tasks can be completed. The environment sensor, the task manager, the upper body movement planning device, the chassis movement planning device, the joint servo controller and the chassis motor controller form the complete halfling-shaped intelligent robot control system, uniform control over the chassis and the upper body is achieved, the convenience of the robot is improved, and market popularization is facilitated; and the halfling-shaped intelligent robot is subjected to layered control, and the reliability and control efficiency of the system are improved.

The invention provides a temperature control load hierarchical aggregation control method for an intelligent building. The method comprises the following steps: 1, constructing the hierarchical control architecture of heterogeneous temperature control load clusters which are aggregated and distributed dispersedly by taking a building as a unit; in an upper-layer control architecture,determining the scheduling capacity which should be provided by each building through distributed containment control based on the aggregation characteristics of the heterogeneous temperature control loads dispersedly distributed in different buildings by means of a load aggregator according to the scheduling requirement of the power distribution network system and the scheduling capacity level which can be provided by each building; sending a scheduling control requirement which contains the scheduling capacity provided by each building to a building controller in a lower-layer control architecture; and inthe lower-layer control architecture, according to the scheduling control requirement sent by the load aggregator, adjusting the running state of a controlled temperature control load in the same building through a conversion time matching control strategy by means of a building controller. According to the invention, the coordination control of load scheduling capacities provided by different buildings in the sparse communication network is realized.