14results about How to "Continuous and reliable operation" patented technology

The invention discloses a direct current charging interface identification and positioning method, and belongs to the technical field of automatic charging of electric vehicles. The method comprises a coarse positioning stage and a fine positioning stage. In the coarse positioning stage, the initial position of the charging port is quickly determined through image preprocessing, contour screening and ellipse fitting. In the fine positioning stage, a multi-factor cluster matching algorithm is adopted, and firstly, a matching preselected area of each feature hole is determined according to a preset geometric cluster relationship among a plurality of feature holes in the charging port; secondly, dynamically calculating scaling and rotation coefficients of the template to adapt to different postures; and finally, constructing a matching degree evaluation function in combination with a central gravitation and edge gravitation principle, and performing matching calculation on an original image and a gradient image template so as to realize accurate positioning of the feature hole. The method solves the problem that the recognition precision and efficiency of the charging port are difficult to consider at the same time in a complex light field environment, and has the advantages of high positioning precision, high processing speed, high environmental adaptability and easy engineering deployment.

The invention provides a distributed energy storage system and method for voltage regulation priority of a power distribution network zone area, relates to the technical field of power systems and automation thereof, and solves the technical problem that the prior art cannot adaptively determine the control priority according to the real-time voltage risk state and cannot drive global optimization decision and cooperative execution based on the control priority. The system comprises a multi-source data acquisition module used for acquiring multi-source data; wherein the multi-source data comprises voltage data; the voltage regulation grade evaluation module is used for carrying out risk evaluation on the voltage data based on a multi-stage voltage threshold to obtain a voltage regulation priority; the optimization model construction module is used for constructing an energy storage multi-objective optimization model based on the voltage regulation priority and the multi-source data; the voltage regulation strategy solving module is used for solving the energy storage multi-objective optimization model through an optimization algorithm to obtain an optimal voltage regulation strategy; and the energy storage control execution module is used for executing the optimal voltage regulation strategy. The method is used in the voltage regulation process of the power distribution network area.

The utility model discloses a material receiving mechanism used on a printing die-cutting machine, and particularly relates to the technical field of printing die-cutting machines, which comprises a material receiving frame arranged on one side of the printing die-cutting machine, a collecting box is arranged on one side of the material receiving frame in a penetrating manner, a box door is hinged to one side of the collecting box, and a conveying mechanism is arranged in the material receiving frame. The conveying mechanism comprises a mounting block fixedly arranged on one side of the collecting frame, a motor is fixedly mounted at the top of the mounting block, a rotating shaft is fixedly arranged at the output end of the motor, a driving wheel is fixedly arranged outside the rotating shaft, and a fixing groove is formed in the collecting frame. According to the waste collecting device, the conveying distance can be flexibly adjusted, waste generated by the printing die-cutting machine can be efficiently conveyed to the collecting box from the material collecting frame, the collecting requirements of the waste with different sizes are met, the waste in the collecting box is effectively compressed, the space occupied by the waste is greatly reduced, and the utilization rate of the collecting box is increased.

The invention provides an accelerator signal control system and method based on asynchronous fusion of CAN and PWM signals, a terminal and a medium, two paths of accelerator signals from a CAN message interface and a PWM identification interface are received and are respectively analyzed into a CAN accelerator value and a PWM accelerator value, and meanwhile, a timestamp is injected into each data point. Based on the signal values and the timestamps thereof, the system executes triple validity verification of continuity judgment, value legality judgment and double-channel signal cross validation in parallel. And finally, through an intelligent arbitration mechanism, an optimal signal source is selected in real time according to a verification result, and a final accelerator value, a final signal type and a final overall validity state are output. Through double-path asynchronous signal fusion and multi-check arbitration, the signal robustness under the complex vibration working condition is remarkably enhanced, controller locking caused by single-path signal interruption is fundamentally avoided, and continuous and reliable operation of equipment is guaranteed.

The utility model relates to the technical field of coating technology discloses sound circuit board coating protection film device, including base, the base bottom fixedly connected with two supports, the base top edge fixedly connected with the protective shell, the protective shell inboard fixedly connected with the supporting plate, the supporting plate top fixedly connected with electric guide rail no.

The invention relates to a cable defect online detection method based on frequency domain reflection. The method comprises the following steps: S1, connecting a test device; s2, generating and injecting an anti-interference spread spectrum excitation signal; s3, acquiring a mixed response signal; s4, reflection response signal extraction based on cross-correlation; and S5, performing frequency domain transformation and positioning map calculation. According to the invention, power frequency interference can be effectively suppressed under the condition of live operation of the cable, broadband signal coupling and response acquisition are realized, the technical blank in the field is filled, and cable defect detection is completed.

The present application relates to the technical field of self-driven measurement-while-drilling tool, and particularly relates to a self-driven along-drill-string measurement system based on a friction nanogenerator. The technical scheme comprises a friction nanogenerator, an energy management unit, a low-power wireless communication relay node and a ground control terminal. The friction nanogenerator is used to collect the vibration energy of the drill pipe and convert it into electric energy. The friction nanogenerator adopts a sliding independent layer structure and comprises a rotor and a stator. The present application realizes distributed self-driving by deploying the friction nanogenerator at each communication node and utilizing the downhole vibration energy. The energy converted by the friction nanogenerator at the drill bit is enough to emit stronger communication signals, ensuring sufficient energy supply, rapid response of communication content and efficiency, developing information transmission technology with continuous power supply and low-power operation in the process of measurement-while-drilling, and realizing bidirectional communication of information, which has remarkable engineering value for difficult-to-exploit oil and gas resources.

This invention discloses an ionospheric disturbance detection and GNSS positioning response method and system, belonging to the field of satellite navigation and positioning technology. The method includes: acquiring GNSS observation data to construct TEC and ROTI maps; combining the TEC and ROTI maps of the current time and the previous N-1 time points into an N-frame dual-channel input sequence; extracting spatial texture features and temporal evolution features through a visual encoder to generate visual features; performing cross-modal semantic reasoning on the visual features through a language reasoning module to generate fused features; and outputting ionospheric disturbance warning levels and GNSS positioning parameter adjustment suggestions through an action head, autonomously triggering parameter switching of the GNSS positioning algorithm. This invention achieves synchronous perception of the spatial texture and temporal evolution of ionospheric disturbances through a VLA model and adaptively adjusts GNSS positioning parameters, ensuring the continuous and reliable operation of high-precision positioning services under ionospheric disturbance conditions.

This invention discloses a low-corrosion high-temperature energy storage molten salt and its method. The molten salt composition includes 20%~30% potassium chloride, 20%~30% sodium chloride, 1%~5% aluminum powder, 1%~5% magnesium powder, 1%~5% zinc powder, and the remainder is magnesium chloride. This invention discloses a low-corrosion high-temperature energy storage molten salt with high stability, low corrosivity, a simple preparation process, and ease of large-scale production. It can achieve excellent thermal storage performance at 600℃~800℃ with low corrosivity, has a large latent heat of phase change, high energy utilization rate, and low requirements for the material grade of metal load-bearing components such as tanks and pipelines, which can significantly reduce the cost of solar thermal engine composite materials.

The invention relates to the technical field of three-dimensional modeling, and discloses a knowledge graph-driven automatic evolution type factory component three-dimensional modeling system, which comprises the following modules: a ternary fusion knowledge graph construction module used for integrating component physical attributes, connection rules and semantic constraints; the GCN self-inference engine module is used for realizing automatic relation inference of an unknown component combination; the community co-evolution module is used for supporting a user to contribute a new component and completing verification updating; the alliance chain evidence storage and right and interest guarantee module is used for guaranteeing data security and knowledge contribution rights and interests; and the standardized interface module is used for realizing seamless integration with industrial software. According to the technical scheme, multi-dimensional attributes and constraints of components are integrated through the ternary fusion knowledge graph, automatic reasoning of unknown component combination relations is achieved in combination with a GCN self-reasoning engine, the intelligent and precise effect of component three-dimensional modeling is achieved, and the problems that it is difficult to adapt to novel component combinations, and assembly logic recognition is inaccurate are solved.

The invention discloses a multi-stage sewage purification system and a sewage purification process, relates to the technical field of sewage treatment, and aims to solve the problems of poor treatment effect, low automation degree and low water resource utilization rate of an existing sewage purification system. The pretreatment unit, the first-stage biochemical purification unit, the second-stage deep purification unit, the third-stage precise filtration unit, the disinfection and discharge unit and the central controller are sequentially communicated in the water flow direction, all the units are communicated through sealing pipelines, and a flow regulation and control valve group is arranged between every two adjacent units. A multi-stage collaborative purification structure is adopted, solid impurities, sand grains, organic pollutants, nitrogen and phosphorus, heavy metal ions and pathogenic microorganisms in sewage can be removed layer by layer through pretreatment, biochemical purification, deep purification, precise filtration and disinfection discharge in sequence, and the problems that an existing system is single in treatment process and limited in purification effect, and the effluent quality is difficult to reach the standard are thoroughly solved. And the effluent quality is stable and meets the set standard.

The utility model provides a kind of battery pack and equipment of phase change heat dissipation, it is related to battery technology field, and the battery pack of phase change heat dissipation includes: box body;Box cover;Fixed beam;Battery frame;Multiple electric core, adjacent electric core is clamped with phase change sheet, phase change sheet and electric core are alternately arranged in battery frame, adjacent phase change sheet and electric core are filled with heat conduction layer;BMS component is installed in the side surface of battery frame.The application directly clamps phase change sheet between electric core, utilizes its phase change latent heat high-efficiency absorption battery heating, and combines high thermal conductivity interface layer to strengthen heat conduction, improves heat dissipation efficiency.Meanwhile, the application cancels traditional air duct or liquid cooling pipeline, and replaces mechanical isolation structure with phase change sheet, realizes battery pack volume reduction, effectively solves the temperature rise problem of small equipment or compact vehicle battery under high rate, high power working condition, guarantees battery power supply stability, prolongs battery cycle life, ensures that equipment continues reliable operation.

The utility model discloses a protective device for constructional engineering construction, and relates to the technical field of constructional engineering. The protective device comprises a protective assembly, a locking assembly is fixedly connected to an inner cavity of the protective assembly, and the protective assembly comprises a vertical rod. The protection device can be conveniently moved and fixed through the universal wheels and the lead screw adjusting mechanism, the universal wheels are arranged at the four corners of the mounting plate in the base, the bevel gear set can be driven by rotating the hand wheel outside the vertical rod to drive the first lead screw to rotate, the mounting plate is lifted to adjust the universal wheels to leave the ground or make contact with the ground, and the moving state and the fixing state are easily switched; the problem that a traditional protection device is difficult to carry is solved, a locking assembly adopts worm and gear transmission, a second lead screw can be driven to drive a pin pipe to be inserted into or pulled out of a pin hole by rotating a hand wheel at the top of a protection plate, folding and unfolding locking work of the equipment is achieved, and construction preparation time and labor cost are remarkably reduced; and multi-area and high-frequency protection requirements of a building construction site are met.

This invention discloses a reliable control method for airborne data bus optical links based on multimode PON. First, a dual-channel OLT module simultaneously sends a terminal data transmission request query command to a designated bus terminal interface on two bus optical connection links. All bus terminal interfaces utilize dual-channel ONU modules, receiving bus data signals simultaneously on both channels. The designated bus terminal interface responds to the terminal data transmission request query command in real time using a determined link of the dual-channel ONU module, and sends the bus data signal it needs to transmit to the line controller on that determined link. The bus controller receives the bus data signal on the link determined by the terminal and forwards the terminal data signal in real time on both bus links. All bus terminal interfaces utilize dual-channel ONU modules, receiving bus data signals simultaneously on both channels, thus achieving deterministic transmission, redundant transmission, and redundant reception of signals transmitted by the bus terminal interfaces.