9 results about "Safety constraints" patented technology

A new energy city power grid source and storage collaborative planning method and system considering safety constraints, comprising: generating a typical scenario based on historical temperature data of the region where the new energy city power grid is located; based on the operating state and equivalent model of the pumped storage unit under different operating conditions, the short-circuit current provided by the pumped storage unit to the fault point under different operating conditions when a short-circuit fault occurs in the new energy city power grid is calculated; a new energy city power grid source and storage collaborative planning model containing each typical scenario is constructed, and a short-circuit ratio constraint of the grid connection point including the short-circuit capacity of the pumped storage unit is introduced into the model; the short-circuit capacity of the pumped storage unit is calculated based on the short-circuit current provided by the pumped storage unit to the short-circuit fault point under different operating conditions; the source and storage collaborative planning model is solved to obtain the output of each device in the new energy city power grid. The present application can solve the problem of the decrease of the equivalent short-circuit capacity of the system caused by the green transformation of the energy structure.

The invention discloses a BIM-based construction temporary facility layout optimization method and system, and belongs to the technical field of construction management, and the method comprises the steps: importing a BIM model containing a construction site boundary, permanent structure information and construction progress information; construction activity intensity parameters are extracted according to construction stage component progress information, and an available area set meeting safety spacing and evacuation channel constraints is generated in combination with site boundaries; constructing a facility function-space adaptation matrix according to construction task requirements, and establishing a multi-objective optimization model by taking maximization of a space utilization rate, minimization of a carrying path and satisfaction of safety constraints as objectives; solving by utilizing a genetic algorithm to obtain an optimal layout position set L *, and writing the L * into the BIM model M to generate a construction stage BIM model M '; according to the method, automation and dynamic optimization of temporary facility layout are achieved, the space utilization rate and safety of a construction site are improved, dependence on manual experience is reduced, and good engineering application value is achieved.

This invention discloses a dual-prediction collaborative safety control method and system for shaping energetic materials. The method includes: real-time acquisition of multi-source parameters; extraction of time-series features based on a sliding window mechanism to construct a dynamic temperature prediction model and output the predicted value of the maximum cutting temperature; simultaneously, correction of manual quality scoring data using a large language model to construct a dynamic quality prediction model and output the machining quality score; inputting the dual prediction results into an adaptive control flow; combining a dynamic linear time-varying model and a sequential quadratic programming algorithm to achieve dual-objective collaborative optimization of maximizing quality and temperature safety constraints to generate control commands; and finally, dynamically adjusting the safety threshold and executing a hierarchical response strategy based on tool wear state and material phase transformation characteristics. This method innovatively integrates time-series temperature prediction and large language model quality assessment through the collaborative optimization of temperature and quality dual prediction models, constructing a model-independent adaptive control framework, effectively preventing thermal runaway, improving prediction accuracy, and increasing system efficiency.

The invention relates to the technical field of isolated power supply system safety domains, and discloses an isolated power supply system safety domain model analysis method, system and device and a medium. The method comprises the following steps: respectively determining a feeder capacity constraint, a main transformer capacity constraint and a frequency constraint of an isolated power supply system under an N-0 safety constraint and an N-1 safety constraint; constructing an N-0 security domain model according to the feeder capacity constraint, the main transformer capacity constraint and the frequency constraint under the N-0 security constraint; constructing an N-1 security domain model according to the feeder capacity constraint, the main transformer capacity constraint and the frequency constraint under the N-1 security constraint; and solving based on the N-0 security domain model and the N-1 security domain model to obtain a security boundary and displaying the security boundary. According to the method, the N-0 safety domain model and the N-1 safety domain model of the isolated power supply system are provided, safety constraints include frequency constraints, the safety domain models of the isolated power supply system are constructed, frequency stability is considered, and a new safety analysis tool is provided for dispatching operators.

The application discloses a kind of mechanical arm path planning method and system for construction, it is related to mechanical arm movement planning technical field, including acquisition multi-source original data is registered with structured preprocessing in space, generates standardization observation data;The absolute space pose of each target operation point determined with the standardization observation data is fused and associated, and operation state data is output;According to the operation state data, the candidate path of end effector in target operation point is calculated using kinematic model of mechanical arm;The candidate path is corrected with safety constraint, and the final path instruction of feasible region constraint is generated.The method of the application solves multiple candidate paths using kinematic model of mechanical arm, and generates final path instruction under safety constraint and feasible region limitation, realizes high precision, strong robustness and safety executable of construction operation mechanical arm path planning, significantly improves operation efficiency and stability under complex environment.

The invention discloses an intelligent adjusting method, system and equipment for a cutterhead of a tunnel boring machine, and relates to the technical field related to tunnel boring machines, the method comprises the following steps: obtaining characteristic data of a tunneling soil layer, and performing deep detection through a multispectral sensor; carrying out tunneling soil layer derivation to construct a tunneling soil layer feature space; establishing a dynamic safety boundary constraint set which comprises a heading machine hard limit boundary, a geological sudden change boundary, a settlement control boundary and a cutter service life boundary; cutterhead parameter optimization is carried out by taking specific energy minimization, tool wear minimization and settlement risk minimization as multiple targets, and cutterhead execution parameters are output for cutterhead adjustment. The technical problems that in the prior art, dynamic sensing of geological conditions is insufficient, dynamic safety constraint adaptability is poor, multi-target optimization conflicts are difficult to balance, and consequently the tunneling efficiency and stability are low, the service life of a cutter is low and the construction safety is low are solved, and the technical effects of improving the tunneling efficiency, stability and construction safety and prolonging the service life of the cutter are achieved.

The invention discloses a safety interaction dynamic game trajectory planning method based on a symbolic distance, and the method comprises the steps: carrying out the dynamic modeling of an intelligent agent and an obstacle based on a vehicle space of a convex polyhedron, and constructing a non-convex safety constraint between the intelligent agent and the obstacle through the combination of the symbolic distance, therefore, the problem of safety redundancy caused by a traditional circular model is avoided, and the feasible solution space of path planning is expanded. And meanwhile, the non-convex security constraint is equivalently converted into the convex security constraint, and the constructed dynamic game trajectory planning optimization problem is solved by adopting an alternating optimization algorithm, so that the solving complexity of the dynamic game problem is remarkably reduced, and the calculation efficiency is effectively improved. Besides, an objective function containing a safe distance item is designed, and efficiency and safety are optimized in a collaborative manner through an adjustment strategy of a weight coefficient and a preset minimum distance. According to the method, the dynamic multi-workshop safety constraint can be accurately modeled, the conservative property of the prior art is overcome, and the track planning requirement of real-time calculation under the game theory framework can be met.

This invention discloses a miniature crane and its electronic fence safety restriction system, relating to the field of miniature crane technology. The invention includes a parameter setting module, a status acquisition module, a main control module, an alarm prompting module, and an execution control module. The parameter setting module is used to input and store various restriction values ​​corresponding to the virtual wall restriction, which is used to constrain the boom's operating range. This invention flexibly configures the virtual wall restriction values ​​through the parameter setting module. Based on the actual boundaries of the on-site working space, it specifically sets safety constraint thresholds for maximum height, working radius, left and right slewing angles, boom lifting angle, and boom lowering angle, constraining the boom's operating range like a virtual wall. This adapts to the operational needs of different confined and complex spaces, avoiding the safety risks of the boom colliding with surrounding obstacles and operating beyond its range, thus solving the problem that existing fixed limit solutions cannot adapt to changing operating scenarios.

The invention discloses a new energy city power grid source storage collaborative planning method and system considering security constraints, and the method comprises the steps: generating a typical scene based on the historical temperature data of a region where a new energy city power grid is located; based on the operation states of the pumped storage unit under different operation conditions and the equivalent model, calculating short-circuit current provided by the pumped storage unit to a fault point under different operation conditions when a short-circuit fault occurs in the new energy city power grid; constructing a new energy urban power grid source storage collaborative planning model including each typical scene, and introducing a grid-connected point short-circuit ratio constraint including pumped storage group short-circuit capacity into the model; the short-circuit capacity of the pumped storage unit is calculated based on short-circuit current provided by the pumped storage unit to a short-circuit fault point under different operation conditions; and solving the source storage collaborative planning model to obtain the output of each device in the new energy urban power grid. The problem that the equivalent short-circuit capacity of the system is reduced due to green transformation of the energy structure can be solved.