36results about How to "Stable maintenance" patented technology

A multi-virtual power plant collaborative optimization scheduling method considering energy sharing comprises the steps of constructing a master-slave game model, constructing an upper-layer game leader scheduling center model, constructing a lower-layer game follower multi-virtual power plant collaborative optimization scheduling model and a multi-virtual power plant income distribution model, and solving the models by adopting a particle swarm optimization algorithm and a Cplex solver. According to the invention, the scheduling center based on energy sharing and the master-slave game model of the multiple virtual power plants are provided, the scheduling center is used as a superior game leader, and the multiple virtual power plants are guided to perform optimal scheduling by dynamically adjusting the electricity price, so that energy sharing among the multiple virtual power plants is stimulated; effective interaction between the multiple virtual power plants and an upper-layer mechanism is achieved through electricity price adjustment; according to the method, the benefit relationship among the multiple virtual power plants is deeply studied, and the problem of benefit damage of part of main bodies in the collaborative operation process is solved based on the multi-virtual power plant collaborative operation benefit distribution model of the Shapley value method, so that the collaborative operation relationship of the multiple virtual power plants can be stably maintained.

The present application belongs to the technical field of embedded visual perception, target tracking and end-side artificial intelligence, and particularly relates to a method for on-demand re-identification target tracking for embedded devices, which comprises the following steps: 1. acquiring images, performing target detection and initial tracking, and obtaining candidate target detection frames; 2. judging whether the candidate target detection frames need re-identification; 3. performing pretreatment, visual feature embedding extraction and normalization on the candidate target detection frames that need re-identification; 4. matching the visual feature embedding of the current target with the candidate track history feature library, and calculating a comprehensive matching score; 5. screening according to the highest comprehensive matching score, restoring the current target that meets the screening conditions to the corresponding track identity and continuing the track; and 6. writing the current visual feature embedding that meets the condition into the corresponding track history feature library, eliminating low-quality or too-old features, and outputting the final result. The method reduces the frame-by-frame re-identification calculation overhead and improves the occlusion recovery and identity consistency.

Embodiments of the present application disclose a box picking apparatus and a robot. The box picking apparatus comprises a push plate assembly and a hooking assembly. The push plate assembly can move along a front-to-back direction. The hooking assembly is disposed on the push plate assembly and has a claw, and the hooking assembly can rotate forward and backward relative to the push plate assembly. The box picking apparatus has a first position and a second position. In the first position, a front end of the claw extends forward out of the push plate assembly, and in the second position, the hooking assembly rotates backward by a first predetermined angle relative to the push plate assembly, the push plate assembly being adapted to contact a product box, and the claw being adapted to fit with the product box. The box picking apparatus of the embodiments of the present application has high box picking precision and can reduce a minimum spacing between adjacent product boxes, thereby improving storage density and a warehouse utilization rate.

The utility model relates to the technical field of valve maintenance auxiliary devices, in particular to a pneumatic butterfly valve maintenance auxiliary device which comprises a fixing table, a mounting frame is fixedly connected to the upper end of the fixing table, sliding grooves are formed in the upper portion of the front end and the upper portion of the rear end of the mounting frame, and two supporting plates are fixedly connected to the middle of the upper end of the mounting frame. A driving part is jointly placed at the upper ends of the two supporting plates, a butterfly valve body is fixedly connected to the upper end of the driving part, moving devices are fixedly connected to the lower portion of the left end and the lower portion of the right end of the mounting frame correspondingly, and two clamping butterfly valve assemblies are arranged at the upper ends of the two moving devices correspondingly. According to the pneumatic butterfly valve maintenance auxiliary device, a stable maintenance platform is built through the fixing table, the mounting frame and other structures, accurate positioning is achieved through the moving device, butterfly valves of different specifications can be flexibly matched through the butterfly valve clamping assembly, the problems that positioning is difficult and supporting is not stable during maintenance are effectively solved, and maintenance efficiency and safety are greatly improved.

This invention provides an oxygen supply device for aquatic ecological restoration, relating to the field of oxygen supply technology for aquatic ecological restoration. The device includes an aerator shell with a chassis structure at its lower end. Four bases are arranged in a rectangular pattern on the upper part of the outer wall of the aerator shell. Multiple cyclone structures are arranged vertically on the upper part of the aerator shell. A protective structure is located at the upper end of each cyclone structure. An auxiliary structure is located at the upper end of each cyclone structure inside the protective structure. The auxiliary structure includes an umbrella-shaped metal seat, and a rubber skirt is fixedly connected to the outer wall of the umbrella-shaped metal seat at the upper end of each cyclone structure. When external water pressure is applied downwards, the umbrella-shaped rubber pad is first pressed firmly against the aerator output end, forming a first flexible seal. Simultaneously, the water pressure is transmitted along the shaft to the spring and the cover plate. The greater the water pressure, the tighter the cover plate is pressed under the cooperation of the spring, preventing backflow.

The present disclosure relates to an apparatus and method for controlling an Ethernet switch for a vehicle. An apparatus for controlling an Ethernet switch for a vehicle can include a switch state detection unit configured to acquire a clock of an Ethernet switch, and a processor configured to determine whether the clock of the Ethernet switch detected by the switch state detection unit has changed, and when the clock of the Ethernet switch has changed, to set an Ethernet interface according to the changed clock of the Ethernet switch.

Provided is a method which can produce a target protein while stably maintaining a vector without any special genetic manipulation of host cells and without use of a drug resistance gene or the like. A method for producing a target protein including culturing cells transformed with a vector, the vector containing a gene of the target protein and not containing an antibiotic resistance gene, a recombinase recognition sequence, or a gene essential for cell survival.

The utility model is suitable for the technical field of power equipment, and provides a power distribution cabinet convenient for hidden arrangement of cables, which comprises a power distribution cabinet body, and a guide rail plate is fixedly arranged in the power distribution cabinet body and is used for assembling an air switch and a leakage protection switch; the wire inlet and the wire outlet are respectively formed in one side and the bottom of the power distribution cabinet body and are used for connecting in and connecting out a cable; the first wiring groove and the second wiring groove are fixedly installed in the power distribution cabinet body through screws and used for wiring, and detachable cover plates are arranged on the first wiring groove and the second wiring groove and used for covering cables. The power distribution cabinet convenient for hidden arrangement of the cables provided by the scheme solves the problem that the cables of the existing power distribution cabinet are exposed and are not beautiful in arrangement.

The invention discloses an electric energy quality hybrid compensation device which comprises a cabinet body, a cabinet door, a moving frame, a pedal, a rotating piece, a locking piece, a supporting frame and a display screen, the cabinet door is movably installed on the front surface of the cabinet body, the display screen is fixedly installed on the front surface of the cabinet door and close to the upper portion, and the moving frame is movably embedded in the bottom of the cabinet body. A pedal is movably embedded in the movable frame, locking pieces are movably embedded in the two sides of the movable frame, rotating pieces are movably embedded in the surfaces of the two sides of the movable frame, and supporting frames are movably installed below the front end and the rear end of the pedal. According to the electric energy quality hybrid compensation device, through the mutual cooperation of the cabinet body, the moving frame, the pedal, the rotating piece and the supporting frame, when a maintainer opens the cabinet door to disassemble and maintain an electric control assembly at the upper end in the cabinet body, the maintainer does not need to carry an extra treading tool.

The packaging film printing device comprises a top box, a bottom box and an ink machine, mounting holes are formed in the four corners of the top box, the bottom box is assembled below the top box in an up-down sliding mode, the ink machine is fixedly assembled at the upper end in the top box, conveying rollers are rotationally assembled on the side edge of the top box, and an observation window is arranged on the side edge of the bottom box; lifting assemblies are assembled between the left end and the right end of the top box and the left end and the right end of the bottom box, a printing mechanism is assembled in the bottom box and comprises hydraulic cylinders, the hydraulic cylinders are fixedly assembled on the side edge of the top box, the printing mechanism comprises an ink box and an ink roller, the ink box is fixedly assembled on the inner side of the bottom box, a support is rotationally assembled in the bottom box, and the ink roller is rotationally assembled on the support. A servo motor is fixedly assembled on the side edge of the bottom box, a rubber pressing roller is rotationally assembled on the inner side of the top box, an ink transfer roller is rotationally assembled in the ink box, a driving motor is fixedly assembled on the side edge of the ink box, and the output end of the driving motor is in transmission connection with one end of the ink transfer roller.

The invention discloses a European standard direct current charging simulator and a use method, and relates to the field of circuit design, and the European standard direct current charging simulator comprises a power supply socket S1, a power conversion module P1, a control module, a communication module and an analysis module C1; the power supply socket S1 is connected with an AC power supply to supply power to the simulator; the power supply conversion module P1 is used for converting alternating current into direct current to provide a stable power supply for the simulator; the communication module is used for simulating the communication process of charging of the charging pile and establishing connection between the charging pile and the simulator; the control module comprises an equipment main control panel CMU, simulates and sets voltage and current requirements of the charging pile, and establishes communication with the simulator through the communication module; and the analysis module C1 is used for connecting an upper computer to modify the charging voltage requirement, troubleshooting and debugging of the equipment main control board CMU. Whether the communication function and the charging function of the charging pile are normal or not can be rapidly detected, the testing efficiency and progress are greatly improved, and time and labor cost are saved.

An electric power converter is electrically connected to an electric storage device. The electric power converter includes a control unit that, according to the voltage measured by the electric power converter, refers to, as the output target for the electric storage device, a reference function which has a drooping characteristic and which represents a control target function. The reference function has a constant-input-output region over a predetermined voltage range, and is updated based on the battery status of the electric storage device.

The invention provides a micro-grid system and a control method thereof, and the method is suitable for a coordination controller of the micro-grid system, and comprises the steps: determining whether a to-be-detected node is subjected to countercurrent or not based on node operation data uploaded by a collection module disposed on the to-be-detected node of the micro-grid system; and if the countercurrent occurs, generating a switch control instruction and sending the switch control instruction to a sub-controller corresponding to the node to be detected so as to disconnect a power distribution switch arranged between power generation equipment corresponding to the node to be detected and the microgrid bus. The method and the device are used for avoiding the phenomena of energy loss and even equipment damage caused by reverse current of a micro-grid system, maintaining system stability and reducing equipment damage.

The invention discloses an open circuit prevention protection device and a live installation method, and the device comprises an open circuit prevention protection module which is used for detecting and rapidly responding to the abnormal overvoltage of the secondary side of a current transformer, and eliminating the high voltage; and the compatible aviation socket is used for being connected with a complete set of switches / terminals to realize plug and play of equipment. According to the invention, the technical problems that the power supply reliability is reduced and the operation is relatively tedious due to the fact that the automatic control equipment is overhauled and replaced in a power-off installation mode in the prior art are solved.

The invention relates to the technical field of abrasive cloth production, and discloses a material feeding device for abrasive cloth wheel production and a machining method.The material feeding device comprises a supporting rod, a transverse frame is mounted at the top end of the supporting rod, a mounting base is mounted in the transverse frame, a feeding pipe is movably connected with a feeding valve plate, and a conveying pipeline is mounted on one side of the feeding pipe. According to the feeding device, after materials stored in the feeding device are fed, the discharging valve plate can be closed to input the materials, and when the discharging valve plate is rotationally closed, it is guaranteed that the state that the discharging pipe and the feeding pipe are opened one by one and closed one by one is stably maintained; the discharging valve plate and the feeding valve plate are combined into a whole through the arrangement of the components, the discharging valve plate and the feeding valve plate can be opened and closed only through one power source, and cost is saved.

The invention relates to a water circulation device with solar energy as energy, and belongs to the technical field of new energy water filtration. The system comprises a solar energy storage device and a water circulation device, the solar energy storage device provides electric energy for the water circulation device, and the water circulation device is used for treating a to-be-cleaned water area. The solar energy storage device comprises a connecting plate, a supporting plate I, a supporting plate II, bolts, a solar panel and a storage battery; the water circulation device comprises an electromagnetic valve, a water outlet pipeline, a connecting cylinder, a connecting pipeline, a blow-off pipeline, a blow-off valve, a water pump, a water filtering pipeline, a cloth bag, a water conveying pipe, a filler I, a filler II and a filler III. The angle of the solar panel can be adjusted according to the field illumination condition, the blow-off pipeline is designed to have a flushing function, and the source of filler materials is wide; the device is high in adaptability, wide in application range, simple and compact in structure, reusable and convenient and fast to maintain.

The clamping equipment comprises a main supporting frame and a clamping assembly, threaded vertical rods are arranged at the two ends of the inner side of the main supporting frame, connecting sleeve blocks are spirally connected to the lower portions of the outer surfaces of the threaded vertical rods, and a main platen is welded to the side, close to the central axis of the main supporting frame, of each connecting sleeve block; the clamping assembly is arranged at the top end of the main platen. According to the clamping equipment convenient for bilateral limiting, through the arrangement of the four positioning plates, in the process that mechanical equipment is placed above the clamping equipment for maintenance, the four positioning plates can be matched pairwise, bilateral limiting is carried out on the mechanical equipment, and therefore the equipment is more stable in the maintenance process; and meanwhile, the storage frame can store small tools or light equipment parts used by maintenance personnel, and the top plate can be matched with the positioning plate to support the equipment when the positioning plate clamps and positions the large mechanical equipment.

A multifunctional solar wall lamp comprises a solar panel frame, a wall hanging plate is arranged on the right side of the solar panel frame, a connecting plate is locked to the wall hanging plate through a second screw, and a solar panel is arranged on the left side of the solar panel frame; the multifunctional solar wall lamp further comprises a lens face frame, a light source assembly is arranged in an inner cavity of the lens face frame, a control panel is arranged on the outer wall of the light source assembly, an infrared induction transparent head is arranged on the left side of the control panel, a lamp body is locked to the outer side of the light source assembly through a first screw, and a battery is arranged in a power supply cavity in the right side of the light source assembly. A battery cover plate is locked to the right side of the light source assembly through a third screw to seal a battery, and the light source assembly is connected with the solar panel and can charge the battery. Due to the adoption of the detachable design, a user can select a separated or integrated mounting mode according to actual requirements, and the mounting position and angle of the lamp can be easily adjusted. Therefore, the application range of the product and the use convenience of the user are greatly improved.

The invention discloses a high-speed permanent magnet motor rotor sheath stress semi-online measurement device and method, the shaft extension end of a high-speed permanent magnet motor extends into a temperature box to be connected with and rotate an inertia disc, and a sensor is arranged on the circumferential side wall of the inertia disc to detect the inner layer radial stress of a to-be-measured rotor sheath in contact with the sensor; the sensor leads out a contact terminal from the end face of the inertia disc, and the contact terminal is in sliding connection with a slip ring electricity leading device installed on the temperature box so as to collect a sensor detection signal for semi-online measurement. According to the device and the method, the actual working condition of the high-speed permanent magnet motor rotor sheath can be simulated, stress monitoring is realized by arranging the sensor and the slip ring electricity leading device, and the accuracy and the effectiveness of a test result are ensured through a dynamic balance test and a test process of gradually increasing the rotating speed.

A tiltable MEMS device (20) is disclosed having an asymmetric, electrostatically actuated tiltable platform (22) and a reflector (24) mounted on the platform so that the platform is hidden below the reflector, except for a portion of long side (22B) of the platform (22) extending from under the reflector (24). An electrostatic stator actuator (26) is mounted on the substrate (21) under the long side (22B) of the tiltable platform (22). The range of a unidirectional tilt is increased by providing a recess in the substrate (21) under the extended portion of the platform (22) to accommodate the increased range of movement of the tiltable platform (22).

The invention relates to the technical field of servers, and discloses a server which comprises a case, a hard disk support, a first capacitor support and a second capacitor support. The hard disk support is arranged in the case, and the hard disk support and the bottom of the case define a containing cavity. The hard disk support is provided with a first connecting assembly and a second connecting assembly. The first capacitor bracket is arranged in the accommodating cavity and is detachably connected with the hard disk bracket through a first connecting assembly; the first capacitor support is suitable for installing a single super capacitor. The second capacitor bracket is arranged in the accommodating cavity and is detachably connected with the hard disk bracket through a second connecting assembly; the second capacitor bracket is suitable for mounting a plurality of super capacitors; when the first capacitor support is located at the first fixed position, the second capacitor support is located at the second separated position; when the second capacitor support is located at the second fixed position, the first capacitor support is located at the first separated position, the adaptation flexibility and operation convenience of the server for different configuration requirements are improved, and the technological maintenance process is accelerated.

The utility model relates to the technical field of cement curing, in particular to a cement curing box convenient to operate, which comprises a machine body, a partition plate is fixedly connected to the rear side of an inner cavity of the machine body, an auxiliary cleaning mechanism is fixedly connected to the left side of the partition plate, and convenient material taking mechanisms are fixedly connected to the top and the bottom of the right side of the machine body in a penetrating manner. Through cooperation of the angle plate, the water tank, the liquid pump, the pipe frame plate and the spray pipe sets, the auxiliary cleaning function is achieved, firstly, the liquid pump is started to extract cleaning liquid from the water tank, then the cleaning liquid is sprayed to the material frame from the spray pipe sets on the pipe frame plate through the branch pipes, the cleaning liquid can be sprayed from the upper portions and the lower portions of the spray pipes, and the mechanism can effectively conduct auxiliary cleaning; therefore, the accumulated material slag is prevented from influencing the curing effect of subsequent cement material blocks, the material blocks can be conveniently placed, the material blocks are more stable in the curing process, in addition, the sanitation problem of the material slag can be avoided, and corrosion to equipment is avoided.

An overvoltage protection circuit (23a) stops supplying power from a power supply apparatus (2) to a motor (4), when a voltage of a DC bus (20a, 20b) exceeds an overvoltage threshold (Vth1). A switch (Q1) and a resistor (R1) are connected to the DC bus (20a, 20b). A discharge control circuit (26) controls the switch (Q1) to consume power of the DC bus (20a, 20b) to reduce the voltage of the DC bus (20a, 20b), when the voltage of the DC bus (20a, 20b) exceeds a discharge threshold (Vth3).

The utility model relates to a lamp box mounting technical field especially a side hanging type lamp box, a side hanging type lamp box, including vertical fixed installation's riser, is equipped with the lighting window on the riser, the rotatable lamp box is rotatably installed on the riser through the shaft, the lamp for lighting is installed in the lamp box, and the lamp box can be maintained after turning over upwards. This side hanging type lamp box contains a piece of vertical fixed riser, and the riser is equipped with the lighting window for the light transmission, and the riser is connected with the lamp box that can turn over upwards through the shaft body, and the lamp box is internally provided with the lamp for providing the lighting, when daily using, the light of the lamp can be projected outward through the lighting window, satisfies the illumination or demonstration demand, when the lamp needs to overhaul, replaces or cleans and maintains, only needs to turn over the lamp box upwards, can let the internal lamp completely expose, need not to dismantle the lamp box whole, convenient operation and can complete the maintenance work fast, guarantees the continuous stable operation of the lamp box.

The present disclosure relates to a method for preparing a metal catalyst deposited with a layer film by ALD process and a metal catalyst thereof. More specifically, the present disclosure is intended to inhibit sintering of catalyst particles to prevent activity decrease, thus stably maintaining high activity, and simultaneously, providing heat stability, by layer-by-layer deposition of a layer film with alternation of different inorganic films on the surface of a metal catalyst in an ALD process.

The invention provides a sleeper heat balance type steam curing device and technology, and relates to the technical field of sleeper steam curing, the sleeper heat balance type steam curing device comprises a bearing frame, a bearing support, a bearing support, a bearing top seat, a bearing shaft seat, a bearing connecting seat and a curing carrying frame; the number of the bearing frames is two. The bearing support is arranged on the inner side of the supporting side frame; the bearing support is installed on the top of the bearing support through the rotating bearing groove. The bearing top seat is mounted at the tops of the two groups of bearing frames; an assembling shaft groove is formed in the bearing shaft seat; the bearing connecting seat is mounted at the bottom of the bearing shaft seat; the maintenance carrying frame is mounted at the bottom of the bearing connecting seat; the steam spraying pipe is borne by the maintenance carrying frame to rotate, so that the steam spraying pipe rotates and sprays around the borne sleeper in an annular path, and the sleeper is stably maintained through steam; the problems that steam and air mixtures in a curing device are difficult to mix to form a circulating convection and disturbance state, and uniform steam treatment is difficult to carry out on sleepers are solved.

The group of inventions relates to the field of food industry, and more specifically to probiotic foods. A method for producing a probiotic composition based on plant raw materials is provided. In the method, natural honey or a material of plant origin, which is one of cereals, beans, vegetables, fruits, a green mass of edible plants, including wild plants, and their by-products, are enriched at least once with a composition of trace elements, converted into a liquid form of hydrolysate, pasteurized, a starter culture containing strains of food microorganisms is added, fermented at a temperature which is optimal for the reproduction of microorganisms until a stationary growth phase is reached, transitioned to a fermentation step at a suboptimal reduced temperature until predetermined characteristics are achieved, and filtered from coarse bran particles at least once after hydrolysis or one of the fermentation steps. A probiotic composition based on plant raw materials produced by said method, a use of the probiotic composition for various purposes, and a probiotic product containing retentate of coarse bran particles obtained after one of the fermentation steps of said method are also provided. The technical result consists in enhancing probiotic and functional properties of the probiotic composition while increasing functionality and digestibility of food (active participation in digestion).

The invention belongs to the technical field of water treatment, and particularly relates to ultrapure water EDI (electrodeionization) equipment which comprises a support and a plurality of module bodies linearly arranged on the support, a front coaming can rotate between a vertical position and a horizontal position, a module maintenance operation space is switched to an external open platform from the inside of the support, and the module maintenance operation space is switched to an external open platform. According to the design, the risks of module collision and interface damage caused by narrow operation space are effectively eliminated, the dash panel is in a vertical state during equipment operation to form a compact enclosure structure, the dash panel is converted into a horizontal platform during maintenance, an extra maintenance channel does not need to be reserved in the layout in advance, and the maintenance cost is reduced. In addition, a set of composite bearing and guiding system is constructed through guiding matching of a first roller and a rolling groove, positioning stopping of a limiting groove and auxiliary supporting of a second roller, and a drawing plate and the module are fixed in an inserted connection mode, so that the module always keeps single-degree-of-freedom linear motion in the moving-out or moving-in process, and the service life of the module is prolonged. The heavy module is ensured to move stably and have a straight track.

The utility model relates to the technical field of wires, in particular to a shock-absorbing wear-resistant tray, which comprises a tray main body, a shock-absorbing wear-resistant structure is arranged at the edge of the bottom surface of the tray main body, the shock-absorbing wear-resistant structure comprises a base material, a shock-absorbing layer and a wear-resistant layer which are sequentially bonded together, and the base material is detachably connected to the bottom surface of the tray main body. The shock-absorbing and wear-resisting structure is simple in structure, has the characteristics of wear resistance and shock absorption and is stable to move, the shock-absorbing and wear-resisting structure is convenient to disassemble, assemble and maintain, and the cost is reduced.