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75results about How to "Improve task performance" patented technology

Multi-sensor cooperative tracking joint optimization decision method

The invention discloses a multi-sensor cooperative tracking joint optimization decision method and aims at providing the optimization decision method with high calculating efficiency and an accurate optimization decision parameter. The method is characterized by predicting the target position information and the fusion measurement information of a sensor in a decision period by a multi-sensor cooperative tracking system, and obtaining the fusion measurement state of a decision cycle moment and a fusion measurement covariance; using multi-source data fusion algorithm to calculate the fusion tracking error of multi-sensor cooperative tracking to a target; according to local aircraft navigation information and radar detection information to the target, calculating the azimuth and the pitch angle of a local radiation source relative to the other aircraft and the tracking and positioning error of the local radiation source detected by the other aircraft; taking the fusion tracking error ofmultiple sensors to the target as a constraint condition and taking a target matching relationship and the like as an optimization decision parameter; establishing a multi-stage and multi-constrainedcooperative tracking decision model; and solving a multi-stage sensor optimization decision and the optimization decision parameter.
Owner:10TH RES INST OF CETC

Heterogeneous aircraft multi-task cooperation allocation method considering timing sequence constraint

ActiveCN107330560AEfficient solutionStrong global convergence abilityForecastingResourcesWide areaGenetic algorithm
The invention discloses a heterogeneous aircraft multi-task cooperation allocation method considering a timing sequence constraint, relates to a heterogeneous aircraft multi-task cooperation allocation method, and belongs to the field of aircraft task planning. An aircraft type is obtained according to tasks, and a flight performance parameter is extracted according to the aircraft type; a heterogeneous aircraft multi-task cooperation allocation model considering the timing sequence constraint is established; and the heterogeneous aircraft multi-task cooperation allocation model considering the timing sequence constraint is solved by utilizing a genetic algorithm considering the time sequence constraint, and a heterogeneous aircraft multi-task cooperation allocation scheme meeting the task time sequence constraint and maximum efficacy can be obtained. The invention provides a task allocation method capable of planning the allocation scheme meeting the task time sequence constraint and the maximum efficacy for a heterogeneous aircraft, task execution time can be effectively shortened, and task efficacy is improved. The heterogeneous aircraft multi-task cooperation allocation method is suitable for an observation-hitting-evaluation fight, wide-area search and a damage or air defense suppression task, and has wide engineering application value.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Two-section flexible operation arm

The invention relates to flexible operation arms, in particular to a two-section flexible operation arm. The two-section flexible operation arm comprises two power sources, a power source connection fixing rack, a first-section flexible arm and a second-section flexible arm. The two power sources are arranged on the power source connection fixing rack. Each power source comprises three motors arranged uniformly. A wiring reel is fixedly arranged at the output end of each motor. A spiral spring serves as the first-section flexible arm. One end of the first-section flexible arm is connected withthe power source connection fixing rack. The other end of the first-section flexible arm is connected with one end of the second-section flexible arm. A spring wire of the spiral spring is provided with three sets of wire leading holes. Two pulling ropes are arranged in each set of wire leading holes correspondingly, and one ends of the two pulling ropes are fixed to the other end of the first-section flexible arm, and the other ends of the two pulling ropes penetrate through the corresponding wire leading holes to be fixed to the wiring reel of the corresponding power source. The two-sectionflexible operation arm is flexible in structure, accurate in locating and capable of conducting fine operation and has the characteristic of environmental adaptability.
Owner:HARBIN INST OF TECH

Spacecraft ACS on-orbit reconstruction method oriented to multi-task multi-index optimization constraints

The invention discloses a spacecraft ACS on-orbit reconstruction method oriented to multi-task multi-index optimization constraints, and belongs to the technical field of spacecraft attitude control.According to the method, for a spacecraft with on-orbit time relevant multi-task constraint, the state and the motion under the multi-task constraint are defined, a utility function about the state-motion is designed and a performance index function is determined, and then an optimal reconstruction strategy in the form of the HJB equation is obtained. Aiming at the problem that the HJB equation isdifficult to solve accurately, an approximate solution method based on the BOADP is provided, the task network and the energy consumption network are designed for estimating two performance index functions, and the convergence of neural network estimation errors is achieved through an iterative learning algorithm, so that an approximate solution of the HJB equation is achieved, and then an optimal reconstruction strategy is obtained, and the maximization of the task earnings is achieved by controlling the energy consumption as few as possible. According to the invention, the multi-task completion capability and the fault response capability of the spacecraft are improved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Human-robot interaction function allocation analysis

Typical inventive practice allocates functions between human and robot, interacting in an unmanned system. Analyses are performed of: mission system; function allocation; and, human-robot interaction automation allocation. Mission system analysis includes: identification of mission system needs, mission system integration parameters, and mission capability configuration; and, mission system report creation (at least partially based on these identifications). Function allocation analysis includes: mission activity analysis; functional allocation report creation (at least partially based on the mission activity analysis); unmanned system safety analysis; and, unmanned system safety report creation (at least partially based on the unmanned system safety analysis). Human-robot interaction automation allocation analysis includes: identification of unmanned system capabilities, unmanned system mission safety considerations, and human-robot interaction configuration; human-robot interaction test-and-evaluation plan creation (at least partially based on these identifications); human-robot interaction performance evaluation; and, human-robot interaction configuration final report creation (at least partially based on the human-robot interaction performance evaluation).
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY

Device for quickly guiding instruction transmission of unmanned aerial vehicle based on manned aerial vehicle

The invention discloses a device for quickly guiding instruction transmission of an unmanned aerial vehicle based on a manned aerial vehicle, and belongs to the field of aviation electronic automation. The device comprises a touch guide module, a voice guide module, an instruction classification module, an instruction decoder, an integrated task processor and an execution mechanism; the device performs fast command and guide, so that the convenience and the flexibility of operation and control of an aviator can be greatly improved under a high decision pressure, the instruction input efficiency is improved, and the advantage opportunity of defense is obtained; the device gets rid of the tedious operations of the target interception mode of the traditional manned aerial vehicle to guide the unmanned aerial vehicle, simplifies the operation flows of the aviator, realizes the fast transmission of multiple unmanned aerial vehicle guide instruction based on a manned aerial vehicle cabin, and guides the unmanned aerial vehicle to lock a target and accomplish tasks. In a rapidly changing task environment situation, the operation time is shortened, the initiative is fought for, the misoperations of the manual operations of the aviator under high pressure can be avoided, the risks are controlled, the pressure is relieved, and the efficiency of accomplishing the tasks is improved.
Owner:SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA

Hypersonic aircraft reentry cooperative guidance method based on reinforcement learning

The invention discloses a hypersonic flight vehicle reentry cooperative guidance method based on reinforcement learning, and particularly relates to a hypersonic flight vehicle reentry cooperative guidance method based on reinforcement learning. Establishing a hypersonic velocity reentry kinetic model and a multi-constraint reentry model; designing an attack angle profile and a height energy profile, and obtaining analytic solutions of the attack angle and the heeling angle; intelligent decision making is carried out on heeling angle symbols according to a DQN algorithm, the action space of the heeling angle symbols is expanded, and a step-shaped mixed reward function is designed by considering time collaboration and falling angle collaboration; the hypersonic aircraft reentry cooperative guidance method based on intelligent reinforcement learning is obtained by training a heeling angle intelligent decision-making model offline and giving cooperative time and a cooperative fall angle to obtain a guidance instruction online, the defect that in an aircraft guidance strategy, heeling angle symbols are turned frequently is effectively overcome, time cooperation and fall angle cooperation are met, and the guidance efficiency is improved. A simulation experiment verifies that the method can well consider time and fall angle cooperation to carry out multi-hypersonic-velocity aircraft guidance.
Owner:中国人民解放军火箭军工程大学

Unmanned aerial vehicle cluster task reliability analysis method based on cluster fault

The invention discloses an unmanned aerial vehicle cluster task reliability analysis method based on a cluster fault, and the method comprises the following steps: S1, searching a cluster fault from the aspects of a functional entity, information interaction, a use mode and a process, and determining a fault type needing to be considered at each level of an unmanned aerial vehicle cluster; S2, obtaining fault causes of cluster faults through fault criteria; s3, measuring the reliability of the unmanned aerial vehicle cluster according to the cluster fault, decomposing a cluster task into stage tasks, dividing a certain stage task of the cluster into a plurality of sub-stage tasks which are continuous in time and are not overlapped with one another, constructing a reliability model for each sub-stage task, calculating the reliability of the cluster task, and finding out reasons influencing the reliability of the task. According to the method, main reasons influencing the task reliability in stage tasks are found out, feedback is provided for unmanned aerial vehicle equipment system design and task planning, and the method is used for guiding selection of equipment entities, correction of performance parameters and adjustment of hierarchical structure relations.
Owner:河北交通职业技术学院 +1

Press-type fallback-preventing assault boat structure

The invention discloses a press-type fallback-preventing assault boat structure which comprises a boat head, a boat body and a boat tail. The boat head is located at the front portion of the boat body, the boat tail is located at the rear portion of the boat body, the boat tail is provided with a power part and a direction control part, the direction control part is connected with the power part, a boat bottom protection part is arranged at the bottom of the boat body and is connected with an obstacle-avoiding part at the bottom of the boat head, the boat body comprises a bearing part and protective parts, the protective parts are located on two sides of the bearing part, the boat head is provided with a press-type fallback-preventing mechanism, and the press-type fallback-preventing mechanism is located in an accommodating bin arranged at the bottom of the boat head and is in smooth connection with the obstacle-avoiding part. The press-type fallback-preventing assault boat structure is novel, reasonable in design and convenient and quick to use, the task capability of transferring victims or relief materials, transporting armed military forces and looting beachheads of an assault boat in flood-fighting and emergency rescues can be improved, and the press-type fallback-preventing assault boat structure is firm, safe to use and worthy of popularization.
Owner:苏州远征魂车船技术有限公司
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