17results about How to "Guaranteed accessibility" patented technology

The invention discloses an automatic tightening system based on double-robot cooperation. The automatic tightening system comprises a mounting stand column, a lifting device, a robot system, a screw feeding system, an operation terminal and a control cabinet. The invention further discloses a using method of the automatic tightening system. According to the invention, the screw can be flexibly tightened, the horizontal assembly tightening efficiency of the product is improved, and the consistency of the assembly tightening quality of the product is ensured.

The application discloses a layered continuous inverse kinematics solving method for fiber reciprocating winding of a cylindrical component and belongs to the technical field of robot end control. Based on a fiber winding task of a six-axis robot cylindrical component, trajectory modeling and pose generation are carried out; a kinematics model of the six-axis robot is established; a Jacobian matrix and singularity representation thereof are obtained; end pose error is defined; the fiber winding task of the six-axis robot cylindrical component is described as a continuous inverse kinematics problem; full-pose inverse kinematics iteration is carried out by using a damped least square method; initial value generation based on state prediction is carried out for the fiber winding task of the six-axis robot cylindrical component; a position rollback strategy is set; and the continuous inverse kinematics problem is solved. The application aims at solving the problems of poor continuity of the end trajectory of the six-axis robot, strong attitude constraint and unstable end reversing solving in the fiber winding process of the cylindrical component.

This invention provides a remote smart lock control method based on a cloud platform, relating to the field of artificial intelligence technology. The method includes: the cloud platform sending a sound wave signal transmission command to the target smart lock, triggering the smart lock to send multi-band sound wave signals to preset auxiliary signal enhancement device deployment locations A and B; the cloud platform receiving sound wave feedback signals from locations A and B, calculating the final communication path based on signal propagation delay, frequency band interference intensity, and attenuation parameters, combined with real-time signal quality indicators reported by the remote communication module; and dynamically encrypting the command and sending it to the remote communication module through the final communication path. This invention dynamically calculates the optimal transmission path, breaking through the limitations of traditional single-channel transmission. Even in complex electromagnetic environments or obstacle-blocked scenarios, it can still ensure reliable transmission of control commands and reduce communication interruption rates.

This invention provides a method and system for intelligent observation and planning of transportation infrastructure based on multi-aircraft collaboration, relating to the field of UAV intelligent observation technology. The method includes acquiring disaster scene, target distribution, and UAV resource information; determining sensor configuration schemes; calculating target urgency and prioritizing them for allocation; constructing access maps to generate observation sequences; planning unobstructed flight paths; controlling UAVs to execute observation tasks; and generating damage assessment results. This method achieves efficient multi-aircraft collaborative observation, improving the efficiency and accuracy of post-disaster transportation infrastructure assessment.

The invention discloses a simple high-temperature gas cooled reactor cooling device, and belongs to the technical field of nuclear power cooling. According to the simple high-temperature gas cooled reactor cooling device, the heat pipe technology is adopted for simplifying the structure, safety and economical efficiency are improved, heat exchange between helium and supplied water is achieved through the heat pipe heat exchange pipes, heat is transferred to the heat release end after being absorbed by the heat absorption end of the heat pipe, heat transfer is achieved, the heat pipe is vertically arranged, short in length and small in thermal stress, the two ends freely stretch out and draw back, and the thermal stress problem is avoided; detection equipment is easy to reach, in-service inspection is facilitated, the heat pipe isolates a primary helium side and a secondary water supply / steam side, safety accidents caused by heat pipe breakage are prevented, extra flow distribution is not needed, the equipment safety level is reduced, cost is reduced, continuous pollution discharge is achieved, heat transfer pipe corrosion is prevented, no height difference exists between a reactor and a heat pipe heat exchanger, construction is simplified, and cost is reduced.

The application relates to the field of intelligent cabinet management, in particular to a safety data management system and method based on an emergency rescue intelligent cabinet, which comprises a material grading module, a permission management module, a distribution planning module, a space supervision module and an emergency identification module, the material grading module is used for establishing a material grading system, the permission management module is used for determining the opening permission of a high-grade material storage compartment, the distribution planning module is used for constructing a gridding model and determining the optimal layout of the intelligent cabinet, the space supervision module is used for setting the positions of common cabinets and supervision points, and the emergency identification module is used for determining the core area of an emergency event; the application can reduce the setting cost of the intelligent cabinet, optimize emergency resource management, balance the convenience and safety of the intelligent cabinet, shorten the material deployment time, improve the emergency response speed, realize event detection and dynamic adjustment mechanism based on a material flow mode, and provide rapid and effective material guarantee for emergencies.

The invention discloses an unmanned ship autonomous cluster formation obstacle avoidance navigation method. The method mainly comprises the following steps: initializing parameters, position, course and operation plan of each ship in an unmanned ship cluster; in the sailing process, the pilot boat and the following boat share sailing information to the cluster network; in the sailing process, sea area environment information is detected according to a sensing module of the unmanned ship, and whether an obstacle is encountered or not is judged; when an obstacle is encountered, the unmanned ship formation carries out control behavior conversion, and corresponding obstacle avoidance measures are taken. According to the method, through obstacle avoidance path planning of a pilot boat, local collision avoidance of following boats based on a dynamic window, and ranking according to formation parameters during obstacle avoidance of the whole formation, when an unmanned boat cluster encounters an obstacle, respective optimal control behaviors can be flexibly adopted for collision avoidance on the basis of guaranteeing safety and accessibility, and the unmanned boat cluster is more accurate in obstacle avoidance. And moreover, rapid aggregation can be realized after obstacle avoidance, cluster navigation can be continuously kept, and the obstacle avoidance efficiency is effectively improved.

The invention relates to the field of fuel cells, in particular to a ZIF-derived non-noble metal electrocatalyst and a preparation method thereof.The preparation method comprises the steps that H3BTT. 2HCl and trichloromethane are added into a container, m-chloroperoxybenzoic acid is dropwise added, and a first solution is obtained; sealing the container, preserving heat, stirring the first liquid, naturally cooling, adding methylbenzene, stirring the first liquid, and irradiating ultraviolet rays for several hours to obtain a second liquid; opening the container, adding pyridine and ammonium carbonate, and stirring to obtain a third solution; carrying out heat preservation on the third liquid, and sequentially introducing mixed gas of ozone and oxygen for bubbling, introducing pure oxygen for bubbling and introducing nitrogen for bubbling to obtain fourth liquid; carrying out heat preservation and stirring on the fourth liquid, filtering and drying to obtain first powder; adding the first powder and anhydrous ferrous chloride into a mixed solution of dimethylformamide and dimethyl sulfoxide, carrying out heat preservation stirring, filtering and drying to obtain second powder; the second powder is subjected to heat preservation, and the ZIF-derived non-noble metal electrocatalyst is obtained and can reduce the cost of a polymer electrolyte membrane fuel cell.

This invention relates to the field of steel component welding technology, and more particularly to an intelligent steel component welding processing device, comprising a transverse trolley, a pair of rotating bases below the transverse trolley, an automatic welding robotic arm on the side wall of the rotating bases, an outer frame on the inner side of the rotating bases, an inner frame on the inner side of the outer frame, a pair of middle frames on the inner frame, upper rings fixedly connected to both sides of the outer wall of the outer frame, and several upper rotating supports rotatably connected to both sides of the inner wall of the rotating base, with the upper rings rotatably connected between the several upper rotating supports and the rotating base. This invention, through the rotating structure of the outer and inner frames and the dual-station material exchange structure, allows welding and loading / unloading operations to be carried out in parallel. While welding is being performed at one station, the other station simultaneously completes the hoisting and positioning of the component to be processed. Rapid material exchange is achieved through rotational switching, eliminating the waiting gaps of traditional single-station structures, significantly improving equipment utilization and production efficiency, realizing continuous production, and further enhancing production efficiency.

The invention discloses a concurrent service processing method, device and equipment based on a time delay Petri network and a storage medium, and the method comprises the steps: determining a service flow of each service for multiple concurrent services; constructing a time delay Petri network model corresponding to the VNF-FG based on the business processes of the plurality of businesses; the time delay Petri network model comprises a network sharing resource library; analyzing the time delay Petri network model to obtain a plurality of analysis results for the processing flow of the concurrent multiple services; under the condition that it is determined that deadlock exists in the multiple analysis results, a preset deadlock avoiding strategy is utilized to update the time delay Petri net model, and a deadlock-free time delay Petri net model is obtained; and based on a deadlock-free delay Petri network model, determining a processing flow of the concurrent multiple services. By adopting the method, competition conflicts of different services to network sharing resources can be avoided under the conditions that multiple services multiplex network virtualization resources and the network resources are limited.

The utility model discloses a vertical embankment downriver ladder step structure combining a cantilever platform and shielding a rainwater discharge port, which comprises a vertical embankment, a landscape cantilever platform is arranged on one side of the vertical embankment facing a river, the landscape cantilever platform comprises a top plate flush with the top end of the vertical embankment, a plurality of upright columns are vertically arranged below the top plate, and the vertical embankment downriver ladder step structure is arranged on one side of the vertical embankment. A curtain wall parallel to the vertical embankment is arranged between the two stand columns close to one side of the river; the two sides of the top plate are respectively provided with river descending steps along the side walls of the vertical dike, the top ends of the river descending steps are connected with the top plate in a flush mode, and the bottom ends of the river descending steps are arranged on wall toes of the vertical dike. Furthermore, a rainwater drainage opening is formed in the vertical dike, the rainwater drainage opening is formed below the top plate, and the water outlet elevation is located above the normal water level of the river channel. The river entering ladder step structure is combined with the landscape cantilever platform and the river entering rainwater discharge port, so that the hydrophilicity and the landscape property of a river channel are improved.

The application provides a railway signal transmission method and system for multi-protocol hybrid communication, relates to the technical field of railway signal transmission, and combines satellite navigation and inertial measurement data in train operation to calculate a pose state, and predicts a precision decline trend according to a satellite signal feature; key data redundancy coding is generated according to the trend, secondary spectrum resources are identified, and a dynamic topology graph containing multi-protocol relay nodes and adjacent trains is constructed in combination with the pose state and a train operation plan; when the precision decline reaches a preset condition or the main communication link deteriorates, the redundancy coding is decomposed and distributed across protocols to the relay nodes to form distributed pre-storage, a digital twin network model is simultaneously established and dynamically updated, based on the model, in combination with the precision trend and the pre-storage state, a cross-protocol transmission path is arranged, transmission paths and quality of service strategies are generated for different priority services, and control instructions are issued in advance, so that dynamic planning and reliable guarantee of signal transmission in a railway multi-protocol hybrid communication scene can be realized.

The invention belongs to the technical field of aviation testing, and provides a device and method for testing an atmosphere data system sensor, and the device mainly comprises a test case, a power supply, a voltmeter, an ammeter, a wave band switch, an adjusting knob, a socket, a detection port, a thermometer, a working power supply, and an adjustable precision power supply. According to the invention, modular design is adopted, so that electrical performance index inspection of attack angle sensors, zero position regulators and total temperature sensors of various models can be completed; the equipment has the characteristics of high test precision, wide application range, strong generalizability, good reliability and maintainability, moderate volume and weight and simplicity in operation.

The invention discloses a Kubernetes off-line deployment method and system, and relates to the technical field of platform deployment, all abnormal-dependency-free files construct a file set, after reachability of all devices is detected in a target node list, the dependency files in the file set are automatically transmitted to a selected target node, an off-line stored mirror image is loaded at the target node, and the reachability of all devices is detected. And when the mirror images are imported into the container, verifying the imported mirror images, judging whether the mirror images meet operation requirements or not, automatically generating a management strategy according to a judgment result, and automatically generating a service configuration file of the kubelet when all the mirror images meet the requirements. The deployment system automatically recognizes the operating system of the target node and selects and configures the proper container for operation, manual intervention and configuration errors are avoided, it is ensured that all needed dependent files do not have problems by conducting anomaly analysis on the dependent files before deployment, and the situation that the subsequent deployment process is affected by missing, version mismatching or damaged files is avoided.

The invention discloses a sampling-based mobile operation robot operation pose determination method and device, which can avoid the problems of high calculation complexity, large calculation data volume and low efficiency caused by total space exhaustion through pose constraint sampling. Meanwhile, the reachability of each target point is verified through inverse kinematics solution, the reachability of the mechanical arm at the searched pose is guaranteed, and the pose tolerance range is output, so that tolerance range guidance can be provided for actual deployment, it is guaranteed that the actual parking position of the robot is located in a feasible region, and the accuracy of the robot is improved. The problem that the target point of the mechanical arm is not reachable is avoided; therefore, the pose determining efficiency is improved, meanwhile, the problem that the target point of the mechanical arm cannot be reached due to the fact that the pose of the chassis under a separated control framework is uncertain is solved, and therefore the method is quite suitable for large-scale application and popularization.

The invention relates to the field of artificial intelligence and automatic planning, in particular to a large-scale planning problem solving method based on general knowledge of a large language model, and the method comprises the steps: analyzing a PDDL domain file and an instance file, and obtaining an initial state, a target state and an action model; the target state is disassembled into sub-targets in a directed two-tuple form, a directed acyclic dependency graph is constructed, topological sorting is carried out, and an ordered sub-target sequence is obtained; recursively traversing a sequence to generate a sub-problem, calling a planner to solve, and optimizing through LLM two modes if the sub-problem fails or is overtime; the mode A selects actions from an executable action sequence to compress a search space, and the mode B predicts an intermediate state to split an intermediate sub-problem; and finally connecting the sub-plans in series in sequence to generate an overall plan. The invention aims to solve the problems that the traditional planning method is high in search overhead, the sub-target sequence is difficult to determine and the LLM output is unreliable.

The utility model relates to the technical field of building heating and ventilation pipe welding equipment, in particular to a building heating and ventilation pipe welding clamp which comprises a support, rotating shafts are rotationally connected to the left end and the right end of the interior of the support, and supporting plates are fixedly connected to the opposite ends of the two rotating shafts. The opposite faces of the two supporting plates are each provided with two clamping mechanisms distributed front and back, each clamping mechanism comprises a sleeve penetrating through and rotationally connected to the outer wall of the corresponding supporting plate, and the end, close to the corresponding rotating shaft, of each sleeve is fixedly connected with a baffle ring attached to the outer wall of the corresponding supporting plate. Two symmetrically-distributed supporting blocks are fixedly connected to the outer wall of the baffle ring, and 360-degree all-circumferential welding of the pipeline is achieved, the rotating shaft is matched with the gear transmission system, the clamping mechanism is driven to synchronously rotate, the clamped pipeline can freely rotate around the axis, the accessibility of a weld joint in all directions is guaranteed, and a welding blind area of a traditional fixing clamp is eliminated.