190results about How to "Decoupling" patented technology

The invention relates to a multi-unmanned aerial vehicle cooperative formation flying management system and method. The multi-unmanned aerial vehicle cooperative formation flying management system comprises a mission planning module, a route planning module, a formation assembly module, a formation maintenance module and a formation reconstruction module, wherein the mission planning module is used for setting a mission type for unmanned aerial vehicle cooperative formation, and the mission type comprises a cooperative patrolling mission, a cooperative detection mission, a cooperative target searching mission and a cooperative target tracking mission; the route planning module is used for generating a flying route in the process of executing the mission for multi-unmanned aerial vehicles;the formation assembly module is used for controlling the multi-unmanned aerial vehicles to reach respective assembly points and controlling the multi-unmanned aerial vehicles to return respective start points; the formation maintenance module is used for controlling the multi-unmanned aerial vehicle cooperative formation to maintain fixed flying formations; and the formation reconstruction moduleis used for reconstructing geometric formations of the multi-unmanned aerial vehicle. A formation flying management decision, the route planning and formation control of the multi-unmanned aerial vehicle in complex environments and special conditions of incomplete communication, dynamic topology and the like are realized, the mission execution efficiency and effect of the multi-unmanned aerial vehicle are improved, and the management is safe and reliable.

The embodiment of the application, which relates to the technical field of automatic driving, discloses a test scene library construction method and device, electronic equipment and a medium that canbe applied to the field of autonomous parking. The method comprises the following steps: determining scene categories, being a perception category or a strategy category, of scene elements; selectingstrategy type elements from the scene elements determined by the scene categories; constructing a test scene library according to the strategy type elements; and verifying the test scene library, andupdating the test scene library according to a verification result. The scene elements are classified into a perception category and a strategy category in advance and only strategy category elementshaving substantial influences on automatic driving are screened to construct the test scene library, thereby eliminating the coupling between the perception category elements and the strategy categoryelements; and thus the test scene library pays attention to the scenes which really need testing, so that the number of the test scenes is greatly reduced, construction of invalid scenes and repeatedscenes is avoided, and the effectiveness of the test scenes and the accuracy of subsequent tests are improved.

The invention relates to a fresh air variable air rate energy saving method and device based on absolute humidity control. The fresh air variable air rate energy saving method is characterized in that the fresh air variable air rate energy saving device based on the absolute humidity control is arranged at the tail end of the fresh air system of an air conditioning system, the opening degree of a valve is automatically controlled through the fresh air variable air rate energy saving device according to the change of indoor humidity, and the fact that the volume of fresh air supplied indoors meets indoor actual dynamic needs is guaranteed; the air volume is automatically adjusted according to the change of the moisture content, namely, the absolute humidity of a room, air output by a fresh air handling unit is dry air of a fixed state, and the relative humidity value of the room is guaranteed; the coupling relationship of relative humidity and dry-bulb temperature is relieved. The absolute humidity, an indoor environment parameter, is controlled, the indoor relative humidity can be precisely controlled, the coupling relationship of the relative humidity and the dry-bulb temperature is relieved well, the moisture condensation risk of a cold emission plate is avoided, meanwhile, control is stable and reliable, and the fresh air variable air rate energy saving method and device have good comfort and the good energy saving effect.

The invention discloses a split type differential silicon micro resonant accelerometer. The split type differential silicon micro resonant accelerometer comprises a glass substrate, a lead layer, a bonding layer and a silicon structure layer, wherein the silicon structure layer is composed of an upper part structure and a lower part structure which are completely symmetrical, and each part structure comprises a mass block, a resonator, a lever amplification mechanism, a supporting beam, an anchoring area and other parts; the two anchoring areas are shared by the upper part structure and the lower part structure only in the middle, and the other structures are completely separated. Each mass block is connected with the corresponding anchoring area through a folding beam, each resonator is located in the middle of the corresponding mass block, an output beam and a pivot beam of a lever mechanism in each lever amplification mechanism are located on the same side of a lever arm, an input beam is located on the other side of the corresponding lever arm, an input beam of each lever is connected with the corresponding mass block, and an output beam of each lever is connected with the corresponding resonator. The split type differential silicon micro resonator accelerometer can not only effectively restrain common mode errors, but also completely eliminate coupling influences of the upper resonator and the lower resonator.

The invention relates to a sharing platform applied to process control systems in process industry, belonging to the technical field of sharing platforms of process control systems, comprising a process control system, a data exchanging machine, a model server, a report server, a data center server, and a message center server. The invention is characterized in that: the process control system is divided into a plurality of single function modules according to system functions; the data exchanging machine enables the data exchange between the PLC in an external system and the data center server; the model server provides model service to the process control system; the report server provides report service to the process control system; the data center server is the transfer station of data streams, which provides data sharing service to the model server, the report server and the process control system; the message center server is the transfer station for massage flows, which receives the messages of the other modules of the sharing platform and the process control system; all the messages can be seen on the user interface of the process control system. The invention has the advantages that: the development process of process control systems in process industry is simplified, and data service, message service, report service and model service are provided to the process control system.

The invention relates to a chromatography control method used in the low-speed printing process of an electronic shaft intaglio printing press, and belongs to the field of printing control. According to the method, a feedforward decoupling PD control algorithm is adopted, the bad influence of the pre-chromatography control amount on a subsequent color set is eliminated in the low-speed operating process, the response speed of the system is increased, and the chromatography precision of the system is improved. Meanwhile, the decoupling depth can be set, and the effectiveness of the decoupling algorithm is guaranteed by selecting an appropriate decoupling depth. The chromatography control method used in the low-speed printing process of the electronic shaft intaglio printing press can be widely applied to practical work, and a good effect is achieved.

The invention discloses an adapter used for outputting data in data flow to XML files and a method thereof, belonging to the field of database ETL. In the prior art, the data flow task of SQLServer2005 integration service does not provide a function which can directly output the data in the data flow to an XML file. By using the adapter and the method of the invention, users can output the data obtained from a pipeline of the data flow task to the target XML files through an instruction template of the target XML files generated by a certain format in advance. By adopting the adapter and the method of the invention, the data of the pipeline of the data flow task can be output to the target XML files effectively and flexibly according to a set format.

A giant magnetostrictive actuator with permanet torque output and a control method thereof belong to the magnetostrictive actuator field, and particularly relate to a giant magnetostrictive actuator with permanet torque output which uses a giant magnetostrictive rod as the core element and a control method thereof. The giant magnetostrictive actuator is in an axisymmetric structure, wherein a barrel-shaped cylinder is arranged at the bottom of the circular cavity of a barrel-shaped shell which is provided with a circular boss at the bottom and a circular groove in the center; a lower magnetizer is arranged at the bottom of the circular cavity of the cylinder; and a cylindrical magnet yoke is arranged on the upper part of the lower magnetizer. The control method of the giant magnetostrictive actuator comprises the following steps: firstly establishing a permanent torque output control module of the giant magnetostrictive actuator, and secondly using a giant magnetostrictive positive effect model, a giant magnetostrictive inverse effect model and a giant magnetostrictive material elastic modulus model to eliminate the coupling effect of the magnetostrictive positive effect and inverse effect in the giant magnetostrictive rod and ensure that the giant magnetostrictive actuator can complete permanent torque output under the combined action of the current in a coil and an external force.

The invention discloses a maneuvering target tracking system capable of processing Doppler measurement on the basis of a predicted value and a maneuvering target tracking method capable of processingDoppler measurement on the basis of a predicted value, which belong to the field of target tracking by radars. The invention adopts a measurement conversion technique, and uses a subtractive debiasingmethod for Doppler pseudo-measurement; when statistic characteristics of converted measurement errors are calculated, with a predicted position value under a rectangular coordinate system as a condition, a mean value and covariance of the converted measurement errors are obtained, and the correlation between the converted measurement error covariance and measurement errors is eliminated; then, onthe basis of converted position measurement and Doppler pseudo-measurement, state estimation is respectively carried out on the position state and Doppler pseudo-state of each motion model; a least mean square error criterion is used for merging position and Doppler pseudo-state estimation results of each motion model, so that a state estimation result of the model is obtained; a model probability mean is calculated according to the position and Doppler pseudo-state information of each model and a covariance matrix thereof; and the state estimation result of each model is weighted, so that afinal state estimation result of the target is obtained.

The invention discloses a single anchor supporting-type double axis silicon micro resonant accelerometer, which comprises a lower-layer glass substrate, a lead layer, a bonding layer and an upper-layer silicon structure layer, wherein the bottom layer is the glass substrate; metal is sputtered on the upper surface of the glass substrate as the lead layer; the bonding layer is arranged on the glass substrate and the lead layer, and through the bonding layer, the silicon structure layer is suspended above the glass substrate; the movable structure of the entire upper-layer silicon structure layer is supported by the only anchor; the upper-layer silicon structure layer comprises a fixed supporting frame and four upper-layer silicon micromechanical substructures, and the upper-layer silicon micromechanical substructures are arranged sequentially in a counter-clockwise direction; and the first upper-layer silicon micromechanical substructure and the third upper-layer silicon micromechanical substructure, and the second upper-layer silicon micromechanical substructure and the fourth upper-layer silicon micromechanical substructure form groups of accelerometer measurement modules respectively. Influences brought by mismatch between material properties of the substrate material and the silicon material can be effectively restrained, residual stress generated in the case of bonding and thermal stress in the case of environmental changes can be eliminated, and decoupling between two orthogonal directions is realized.

A video playback method includes: receiving, by a terminal, an input video playback instruction, where the video playback instruction is used for requesting to play a current fragment file in a video file, and the video file has multiple fragment files besides the current fragment file; acquiring, by the terminal, the current fragment file from one of multiple servers, where each of the multiple servers stores the current fragment file; and playing, by the terminal, the current fragment file.

The invention discloses a method for accurately forecasting the five-axis processing milling force of a spiral cutter. The method comprises the following steps: 1) acquiring coordinates of a cutter blade line of the cutter in a cutter rotating coordinate system XrYrZr according to the eccentric state of the cutter; 2) acquiring an instant blade line locus equation containing a cutter eccentric parameter according to an instant cutter tip position and the angular position of a pendulum shaft; 3) building a parameter equation of a straight line l which passes any given cutting point S<*>(i<*>, zc<*> and t<*>) and is perpendicular to the axis of the cutter; 4) acquiring the positions of intersections T of the straight line l and first mi adjacent blade loca according to the instant blade line locus equation containing the cutter eccentric parameter and the parameter equation, and acquiring the cutting layer thickness h(i<*>, zc<*> and t<*>) of the cutting point S<*>(i<*>, zc<*> and t<*>) according to distance h(i<*>, zc<*>, t<*> and mi) between the cutting point S<*>(i<*>, zc<*> and t<*>) and the corresponding intersection T; 5) calibrating the cutter eccentric parameter and a specific cutting force coefficient according to a thin plate milling experiment scheme; 6) acquiring the total cutting force exerted on a workpiece with a basic cutting force mechanical model according to the cutting layer thickness h(i<*>, zc<*> and t<*>)of the cutting point S<*>(i<*>, zc<*> and t<*>), the cutter eccentric parameter and the specific cutting force coefficient. The method can be used for accurately forecasting the total cutting force exerted on the workpiece.

The invention discloses a roaming liquidation service scheduling method, roaming liquidation service scheduling middleware and a roaming liquidation service scheduling system. The roaming liquidation service scheduling middleware mainly comprises a client application programming interface (API), a control center, a server API and an operation desk, wherein the client API is used for providing an API for a client; the control center is used for dynamically scheduling a service request of processing a ticket file from the client, and allocating the service request to different application control system (ACS) servers for processing; the server API is used for providing an API for each server, so that the server finishes roaming liquidation service for the ticket file according to the dynamic scheduling of the control center; and the operation desk is used for viewing a service process of each server. The service request can be dynamically scheduled, and loads of the servers can be balanced; services are decoupled, and coupling between the client and the servers is reduced; a transaction mechanism for processing the ticket file is also provided, so that the accuracy of a ticket is ensured; and the processing of the ticket file can be tracked through the operation desk.

The invention relates to the field of artificial heat pumps and especially relates to a magnetic levitation axial flow self-generating artificial heart pump. The device comprises a suspension stator,a rotating mechanism, a torque stator, a pump body, a blood channel, a backflow generating device and waste heat generating devices; the torque stator is installed inside a pump body inner chamber; anupper end and a lower end of the torque stator are provided with torque stator storage battery chambers where a torque stator battery is internally installed; an upper end and a lower end of the pumpbody are provided with pump covers respectively; the upper pump cover and the lower pump cover are provided with a blood outlet and a blood inlet; the pump covers are provided with suspension statorbattery chambers where suspension stator batteries are internally installed; the suspension stator and the rotating mechanism are installed between the upper pump cover and the lower pump cover; a shaft of the pump cover end part is provided with a backflow generating device; the waste heat generating devices are installed inside the torque stator and outside the suspension stator. The present invention having self-generating device has strong endurance capability. The decoupling of the torque magnetic field and the levitation magnetic field is realized, the operation stability is high and the power loss is low; the blood pump function can be replaced by the human body instead of the heart for a long time.

The invention provides a flexible variable-stiffness joint mechanism. The flexible variable-stiffness joint mechanism comprises an input structure and an output structure. The input structure and the output structure are connected and vertically corresponding. The input structure comprises a pair of guide rod shafts, a pair of guide rods, a pair of compression springs, a pair of spring installation seats and an input plate. The output structure comprises a pair of linear guide rail assemblies, a pair of roller sets, a pair of roller installation frames, a linear displacement sensor push rod, a pair of racks, a driven gear, a drive gear, a linear displacement sensor, an output plate, multiple bearings, multiple clamp springs and multiple bolts. The flexible variable-stiffness joint mechanism solves the problems that in the prior art, the loading capacity is poor, the stiffness adjustment range is narrow, the energy consumption of stiffness adjustment is large, the coupling performance is high, the passive stiffness performance is poor, and external connection with an air cylinder is needed.

The invention provides a radio frequency microsystem packaging module and a manufacturing method thereof, which relates to the application field of chip packaging of a high-density microsystem comprising a wireless communication radio frequency front-end module. The radio frequency microsystem packaging module comprises a first wafer with a first semiconductor device layer, a second wafer stackedon the first wafer and contained in the first wafer and provided with a second semiconductor device layer, a first inter-wafer interconnection wire group for realizing electrical coupling between thefirst wafer and the second wafer and a first medium filling sheet body placed on the first wafer and surrounding the second wafer. Through vertical wafer stacking and electrical interconnection, the packaging scale of the radio frequency microsystem packaging module is narrowed, and the electrical performance is improved.

The invention relates to an interface logic control method based on a 3D (three-dimensional) model. The interface logic control method based on the 3D model comprises the following steps of: a) loading a 3D model, and storing the information of the 3D model into a data structural body; b) storing animation data in the data structural body as one data block in the data structural body; and c) setting a focal point switchover attribute, a state change attribute and a event call-back attribute in the data structural body, wherein the focal point switchover attribute is used for setting a next focal point model after the focal point is changed, the state change attribute is used for invoking a corresponding animation in the data block to be played, and the event call-back attribute is used for calling the corresponding call-back attribute. With the method disclosed by the invention, the 3D model is packaged and subjected to attribute setting, so that the attributes and corresponding events are correlative instead of directly coupling the interface with functions, the interface development and the function development are mutually independent, thus the 3D interface development difficulty is lowered, the code reuse ratio is improved, deep coupling between the interface and the corresponding functions is removed, and the development efficiency is improved.

The invention is a six-freedom parallel used in virtual shaft digital controlled machine tool, measurer and parallel robot, composed of dynamic platform, static platform and a mixed chain leg and four same simply open chain legs. The mixed chain leg is composed of a planar closed-loop structure and an open-chain structure, the planar closed-loop structure is composed of five rods by five rotary auxiliaries in turn, two components of the planar closed-loop structure are mechanically connected with the static platform through rotary auxiliaries; the open-chain structure is composed of three components by two parallel-axis rotary auxiliaries, respectively, one end and two planar-rotating components in the planar closed-loop structure compose a compound hinge, and the other end is connected with the dynamic platform through a rotary auxiliary, mechanically; the simple open-chain structure is composed of two components connected by a ball auxiliary, one component is connected with the static platform and the other component is connected with the dynamic platform. Control of the motion of six driving joints on the static platform can control the platform to implement 3D translation and 3D rotary output.

The invention provides a compound sound barrier structure based on photonic crystals, relates to a sound barrier and aims to solve the problem that most existing sound barriers are mainly vertical sound barriers, the noise reducing performance is obviously poor, and especially the noise reducing effect on noise of low and medium frequency is poor. The compound sound barrier structure comprises a primary sound absorption plate, a secondary sound absorption plate, a tertiary sound absorption plate and a quaternary sound absorption plate, wherein the quaternary sound absorption plate and the tertiary sound absorption plate are connected to form a whole, the tertiary sound absorption plate and the secondary sound absorption plate are connected to form a whole, and the secondary sound absorption plate and the primary sound absorption plate are connected to form a whole. The compound sound barrier structure achieves noise isolation.

The invention discloses a double-shaft split type differential silicon micromachined resonant accelerometer which comprises an upper-layer silicon micromechanical structure and a lower-layer glass base, wherein the upper-layer silicon micromechanical structure is bonded on the glass base, the upper-layer silicon micromechanical structure consists of four upper-layer silicon micromechanical sub-structures which are completely identical, the upper-part structure and the lower-part structure at the left side form one group of differential structures for measuring an acceleration in a Y direction, and the upper-part structure and the lower-part structure at the right side form another group of differential structures for measuring an acceleration in an X direction. According to the double-shaft split type differential silicon micromachined resonant accelerometer disclosed by the invention, common mode errors between two groups of two resonators forming the differential structures can be effectively inhibited, the coupling influence between the two resonators is eliminated, and the decoupling between the X direction and the Y direction can be realized.

The invention discloses a thermal coupling power generation system of a garbage incinerator medium pressure steam and coal-fired unit. The thermal coupling power generation system is technically characterized in that a garbage incinerator body and a coal-fired unit are included; a high-pressure heater comprises a first-stage high-pressure heater body and a second-stage high-pressure heater body which communicate with each other; an ultrahigh-pressure cylinder is connected with a high-pressure cylinder; a water feed pump is connected with a low-pressure heater through a pipeline and is connected with a deaerator through a pipeline; the deaerator is connected with the high-pressure heater through a pipeline; the high-pressure heater is connected with the coal-fired unit through a water feedpipeline; the coal-fired unit is connected with a main steam pipeline; the main steam pipeline is connected with the ultrahigh-pressure cylinder; the ultrahigh-pressure cylinder is connected with a third-stage high-pressure heater body through a first-stage steam extraction pipeline; the ultrahigh-pressure cylinder is connected with the second-stage high-pressure heater body through a second-stagesteam extraction pipeline; the coal-fired unit is connected with the high-pressure cylinder through a reheater pipeline; and the high-pressure cylinder is connected with a condenser. According to thethermal coupling power generation system, by means of steam generated by a waste heat boiler for incinerating garbage, the steam is guided into a coal-fired unit thermal system, the efficiency of garbage incineration power generation is improved, and thermal consumption and power generation consumption are reduced.