29results about How to "Extended run time" patented technology

The application relates to a kind of OFDM-based broadband millimeter wave relay system hybrid beamforming design method, comprising: calculating the receiving signal of target node under the condition that each node is all digital processor;The receiving signal is processed using minimum mean square error criterion in target node, and MMSE matrix is calculated;Using the equivalence between maximizing sum rate and minimum weighted mean square error algorithm, the maximum sum rate problem is converted into minimum weighted mean square error problem according to MMSE matrix;Deep unfolding neural network is used to solve the minimum weighted mean square error problem, and all digital processor of each node is obtained;Each node's all digital processor is decomposed based on least square decomposition algorithm, and hybrid beamforming matrix of each node is calculated, the complexity of the algorithm is greatly reduced, and the running time of the system can be effectively improved.

The application is suitable for the technical field of image processing, and provides a battery glue line skeleton extraction method based on an improved ZS thinning algorithm, which comprises the following steps: preprocessing a collected battery glue line image to obtain a binary image; performing improved ZS thinning on the binary image, dividing the image into odd and even subdomains for batch processing, and introducing a constraint condition to iteratively delete redundant pixels to obtain a preliminary skeleton; using a T-shaped 4-neighborhood deletion template to remove T-shaped redundant pixels and realize complete single-pixelization; through 8-chain code tracking, identifying and removing burr branches caused by glue overflow and uneven glue coating, while protecting nodes to obtain a final glue line skeleton. The application solves the problems of skeleton redundancy, over-thinning and burr in existing thinning algorithms, realizes high-precision, single-pixel and burr-free glue line skeleton extraction, and can meet the online detection requirements of battery assembly lines, and has good industrial applicability.

The utility model relates to the field of petroleum chemical technology, concretely relates to a catalyst settlement system stable in operation and good in settlement effect, including clarification mechanism, sludge buffer tank, feed pipeline, sludge tank, backflow pipeline, overflow pipeline, filter press, filtrate tank and sludge discharge pipeline, the clarification mechanism includes a plurality of settlement tanks that are arranged side by side from front to back in proper order and the clarification tank that is arranged at the end of clarification mechanism, the bottom of clarification tank is provided with special ammonium sulfate solution discharge pipeline, is provided with ammonium sulfate solution pump on the ammonium sulfate solution discharge pipeline, the end of ammonium sulfate solution discharge pipeline extends to ammonium sulfate tank area, the outlet end of ammonium sulfate solution pump is equipped with a branch pipeline, this branch pipeline is connected with the feed inlet on the top of filtrate tank through regulating valve, the bottom outlet of filtrate tank is connected with the inlet of clarification mechanism through filtrate pump. The catalyst settlement system is stable in operation, and the downstream device operation cycle is prolonged.

This invention provides an energy management system for a modular robot, comprising a local management unit within each modular unit and a global scheduling unit located on the main control side of the modular robot. The local management unit, centered on a microcontroller, includes an energy bus dynamic reconfiguration module, a lithium-ion battery pack management and monitoring module, a lithium-ion battery pack current capacity estimation module, and a modular unit energy consumption prediction module. It estimates and outputs to the main control controller the current capacity of each modular unit and the future energy consumption requirements for each trajectory in the task sequence. The global scheduling unit, centered on the main control controller, includes a modular robot energy scheduling module. Based on data provided by each microcontroller, it performs global energy planning for the operation of the modular robot and sends energy scheduling commands to each microcontroller. This invention is applicable to solving the problem of localized failures caused by uneven energy consumption in independent power supply systems, and improving the remaining power balance rate.

The utility model discloses a protection reactor applied to a hydrotreating reactor, which comprises a feed inlet assembly, a filtration reaction tower, a hydrogenation assembly and a hydrotreating reactor, the feed inlet assembly provides crude oil to be treated for the filtration reaction tower, the hydrogenation assembly provides hydrogen for the filtration reaction tower, the filtration reaction tower is connected with the hydrotreating reactor, and the hydrotreating reactor is connected with the hydrogenation assembly. The filtering reaction tower conveys treated crude oil to the hydrotreating reactor for further reaction, the feed port assembly comprises a first feed port, a second feed port and a third feed port, the filtering reaction tower comprises a first bed layer, a second bed layer and a third bed layer, the first bed layer, the second bed layer and the third bed layer are sequentially arranged from top to bottom, and the first bed layer, the second bed layer and the third bed layer are sequentially arranged from top to bottom. The first feeding hole is connected with the first bed layer, the second feeding hole is connected with the second bed layer, and the third feeding hole is connected with the third bed layer, so that the continuous operation time of the hydrotreating reactor is greatly prolonged.

This invention relates to the field of mine emergency rescue equipment technology, specifically a multimodal integrated platform for mine emergency detection and response. It addresses the problems of equipment being unable to enter low-lying tunnels after a mine disaster, poor environmental adaptability leading to easy overturning, slow emergency response, and short survival time in refuge areas during power outages. The platform includes a low-profile, flat, fully enclosed chassis, a ground-pneumatic composite drive system, an integrated mission payload, an energy and communication system, and an emergency power supply module. Key technical features include: a low-profile configuration adapting to extremely narrow spaces; four-wheel independent drive and four-corner ducted fans enabling omnidirectional movement, water surface floating, obstacle crossing, and autonomous righting after overturning; integrated panoramic detection and a horizontal submersible pump supporting rapid and relay drainage; and an added emergency power supply interface for temporary power supply to UPS, emergency lighting, and communication equipment in underground refuge areas, extending rescue waiting time. This invention integrates detection, drainage, and emergency power supply, and is suitable for rapid rescue and life support operations in mine collapses and water inrush accidents.

The application discloses a dynamic route hybrid expert model reasoning method, system, device and medium, which are corresponding solutions, and in the solutions: through automatic parallel strategy search, the application can divide the model into pipeline stages with balanced running time, reduce the idle rate of the calculation unit, and effectively improve the execution efficiency of the calculation unit; and the automatic search process of the application can reduce the maximum pipeline stage running time as much as possible under the condition of meeting the memory limit, so that the reasoning performance of the model is improved.

For a circuit breaker system (3) including a first circuit breaker (1) and a second circuit breaker (2), the first circuit breaker (1) has a first trip unit, a first control unit and a first electrical sensor, the first control unit controls the first trip unit, the second circuit breaker (2) has a second trip unit, a second control unit and a second electrical sensor, the second control unit controls the second trip unit, the circuit breaker system (3) further includes means for communication between the first control unit and the second control unit, it is suggested that the first control unit monitors for the presence of an internal device fault in the second circuit breaker (2) via the means for communication, wherein the first control unit is adapted to change its standard trip characteristics to emergency trip characteristics when an internal device fault of the second circuit breaker (2) is detected.

The utility model relates to the field of coating production auxiliary equipment, and discloses a vehicle coating wear-resistant filler adding dust removal device which comprises a supporting frame, a dust removal tank is fixedly connected to the inner wall of the supporting frame, a dust inlet pipe is fixedly connected to the left side of the dust removal tank, a protection box is fixedly connected to the right side of the dust removal tank, and a filter screen is slidably connected to the interior of the protection box. Two fixing assemblies are arranged on the outer side of the filter screen, an air guide pipe is fixedly connected to the outer side of the protection box, a fan is installed at the end, away from the protection box, of the air guide pipe, and a machine base is fixedly connected to the outer side of the fan. According to the fan, through mutual cooperation of the pull rod, the first thin shell, the spring, the baffle, the inserting block, the filter screen, the L-shaped stopping block and other structures, the filter screen is convenient to replace and maintain, the good filtering performance is kept, and therefore the amount of dust entering the fan is reduced, the abrasion risk of fan parts is reduced, and the normal operation time of the fan is prolonged; efficient and stable operation of the whole dust removal device is maintained.

The application relates to a Fourier fitting method, device and system applied to signal analysis, which comprises the following steps: firstly, obtaining a plurality of to-be-fitted scattered points; secondly, establishing a Fourier fitting model based on the to-be-fitted scattered points, taking a deviation parameter and a period parameter as independent variables, and establishing an optimization objective function based on the Fourier fitting model; finally, according to the optimization objective function, iteratively optimizing the deviation parameter through a trust region algorithm, finally obtaining a plurality of final fitting parameters, then fitting the plurality of to-be-fitted scattered points according to the Fourier fitting model containing the final fitting parameters to obtain a final fitting result, and obtaining a signal analysis result according to the final fitting result. Compared with the prior art, the application utilizes the characteristics of fitting itself, sets only two unknown quantities, greatly reduces the calculation amount and calculation time, and only calculates a single variable through the trust region algorithm, uses the parameters after each iteration to control the iteration number, greatly improves the running time and efficiency, and has good practicability.

The application provides a control method and device of an air conditioner, a storage medium and the air conditioner. The method comprises the following steps: after the air conditioner is started to cool, an initial running frequency of the air conditioner last time when the air conditioner is started to cool under the same indoor and outdoor environment temperature and set temperature as this time is acquired, and a second time length of running at an intermediate running frequency is acquired; it is judged whether the second time length of running at the intermediate running frequency last time is greater than a preset time length; if it is judged that the second time length is greater than the preset time length, a preset frequency value is added to the initial running frequency of the air conditioner last time when the air conditioner is started to cool, as the initial running frequency of the air conditioner this time when the air conditioner is started to cool; if it is judged that the second time length is less than or equal to the preset time length, the initial running frequency of the air conditioner last time when the air conditioner is started to cool is taken as the initial running frequency of the air conditioner this time when the air conditioner is started to cool. The application can realize the rapid change of room temperature and improve the comfort of users.

The invention relates to a power electronic converter, such as an inverter or converter, for electrical applications, such as motor drives, electrolyzers or chargers. The power electronic converter includes a DC link and an active front end (AFE) connected to a grid via a filter and a grid plate. The grid plate has a first surge relay. The first surge relay has a resistive device. The resistive device may be a resistor, more specifically an NTC resistor or a PTC thermistor. The power grid plate further comprises a second surge relay. During a start-up phase of the power electronic converter and during abnormal grid voltage conditions, the at least one surge relay is controlled to turn on or off such that the DC link is charged via or bypassing the resistive device, and the AFE is used to boost the voltage of the DC link to a safety level and in a controlled condition. The invention also relates to an electric motor drive and to a method for operating a power electronic converter.

The invention relates to a wet wipe module of a dust collector. The wet wipe module comprises a module cover body; a water tank coupled to the module cover and storing water inside the water tank; at least one rotary cleaning unit which is disposed on the lower side of the module cover body and to which a cleaning cloth can be coupled; and a heat generator for heating water supplied from the water tank, the heat generator includes: a heating chamber in which a flow path through which water flows is formed; the heater is arranged on the lower side of the heating chamber and supplies heat to the heating chamber; a plurality of heaters are provided and operate independently from one another; thus, it is possible to maintain the operation time of the heat generator for a long time.

The invention relates to the technical field of plastic bottle forming molds, in particular to a PET plastic bottle forming mold which comprises two mold bodies, a cavity used for forming a plastic bottle is formed when the two mold bodies are combined, heating devices are arranged in the mold bodies, and bamboo joint pipes and electric heating wires are arranged in the heating devices. When a bottle blank enters a cavity formed by combining the two main body molds, the bamboo joint pipe pushes the electric heating wire to the outer side of the bottle blank; the heating device comprises a mounting groove formed in the mold main body, a bamboo joint pipe is fixedly mounted at the bottom end of the mounting groove, a movable part is fixedly mounted at the top end of the bamboo joint pipe, and the movable part is arranged in the mounting groove; an air channel communicating with the interior of the bamboo joint pipe is formed in the bottom end of the mounting groove and used for communicating with an air pump outside the mold body. The blow molding device solves the problem that the actual temperature of the bottle blank is lower than the expectation during blow molding processing.

The utility model discloses a multifunctional generator set, which is characterized in that the output end of a motor unit 11 is respectively connected with the first input end of a bidirectional DC-DC unit 12 and the first input end of a bidirectional DC-AC unit 13, and the first output end of the bidirectional DC-DC unit 12 is connected with the first input end of a power management unit 14; the first output end of the power management unit 14 is connected with the charging end of the electric energy storage unit 15; the first output end of the bidirectional DC-AC unit 13 is connected with the AC output port; the second output end of the bidirectional DC-DC unit 12 is connected with the DC output port; and the control end of the bidirectional DC-DC unit 12 and the control end of the bidirectional DC-AC unit 13 are respectively connected with the control end of the MCU 17. The output end of the electric energy storage unit 15 is connected with the second input end of the power management unit 14, and the second output end of the power management unit 14 is connected with the second input end of the bidirectional DC-DC unit 12; and the second input end of the bidirectional DC-AC unit 13 is connected with the AC input port.

The utility model discloses a gear with a lubricating function, which relates to the technical field of gears and comprises a gear body, the surface of the outer ring of the gear body is provided with a diversion trench and is slidably connected with oil guide beads, an oil storage bin is arranged in a cavity of the gear body, a plurality of capillary oil guide hole groups are arranged in the cavity of the gear body, and the capillary oil guide hole groups are communicated with the diversion trench. Oil guide fibers are fixedly connected into each capillary oil guide hole set, a threaded oil injection opening is formed in the side wall of the gear body, a sealing clamping head is connected to the side wall of the gear body in a threaded mode, and one end of the sealing clamping head is fixedly connected with a disintegrating slag magnetic attraction block through an opening. According to the gear body provided by the utility model, on the basis of realizing uniform oil outlet for lubrication, metal scraps left inside are adsorbed through magnetic attraction to be conveniently cleaned, so that the problems that an existing lubricating gear cannot be automatically adjusted in lubricating oil supply, oil leakage and pollution are easily caused at a high speed, low-speed lubrication is insufficient, and the service life of the gear body is prolonged are solved. And metal scraps inside are deposited and are difficult to clean.

This invention provides a spray head, a reaction chamber, and a maintenance method thereof. The spray head includes an upper cover plate, a spray plate, and a lower cover plate. The upper cover plate has an air inlet for connecting to an air source. One side of the spray plate faces the upper cover plate, and the other side faces the reaction chamber. After the reaction chamber is opened, the lower cover plate is detachably and sealingly installed on the side of the spray plate facing the reaction chamber.

The invention relates to a device (1) for providing electrical energy, comprising a power generator (2), a first battery (3), a second battery (4) and a controller (5) configured to control a first current converter (6) of the first battery (3) such that the first battery (3) once again only discharges and switches to charge until a condition is met; and controlling a second current transformer (7) of the second battery (4) in such a way that the second battery (4) is only charged again and is switched to discharge until a condition is satisfied, said condition being that the first battery (3) reaches a lower limit value (8) of its state of charge or the second battery (4) reaches an upper limit value (9) of its state of charge. The invention also relates to a method for operating a device (1) for providing electrical energy.

This utility model relates to the field of ternary precursor synthesis reaction technology, and more particularly to a ternary precursor reaction device for controlling the reaction atmosphere, including a reactor and a cover plate. A cover plate for sealing the reactor body is fastened to the upper end of the reactor. Two sets of connecting pipes are connected to the upper end of the cover plate. Filter rings are provided on the inner sides of both sets of connecting pipes, and the filter rings are fastened to the connecting pipes. A positioning pipe is installed at the lower end of the reactor, and a discharge pipe is connected to the outer wall of the positioning pipe. A discharge plate is installed at the end of the discharge pipe furthest from the positioning pipe. This utility model achieves the filtration of materials with different particle sizes by installing detachable filter rings at the connecting pipe joints, allowing selection of filter rings with different pore sizes according to different production requirements. During the feeding process, the filter rings filter the material entering the reactor in real time, effectively intercepting solid particulate impurities, preventing impurities from entering the reactor, reducing the impact of impurities on product performance, and improving the quality of the final product.

The application provides a tubing shoe and a short-radius horizontal well multi-stage sliding sleeve jetting staged fracturing method, and relates to the field of oil and gas field development. The tubing shoe comprises a connecting cylinder assembly, a rotating shoe assembly, a base assembly, a transmission assembly, a locking assembly, a pin pulling assembly and a fishing tool. The rotating shoe assembly is rotationally connected to the lower end of the connecting cylinder assembly. The transmission assembly and the base assembly are fixed by clamping, which facilitates the recycling of the transmission assembly, the base assembly and components thereon. The recycled transmission assembly, the base assembly and components thereon can be assembled again in the reverse order, which is conducive to the reuse of the internal accessories of the tubing shoe. Since the transmission assembly, the base assembly and components thereon do not need to be drilled out, higher-strength parts can be used, the internal accessories of the tubing shoe have the effect of high strength, the structure of the tubing shoe is less likely to be damaged during operation, and the operation time of the tubing shoe is facilitated to be prolonged.

This invention discloses a high-rate cellulose aerogel, its preparation method, and the interfacial evaporator and applications thereof, belonging to the field of aerogel material technology. The preparation method includes: (1) selectively etching Ti3AlC2 with LiF / HCl solvent to obtain MXene nanosheet solution; (2) preparing phase change microcapsules (PCM) by emulsion template interfacial polymerization, using formamide as the aqueous phase, n-dodecane as the oil phase, and polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer (PEO-PPO-PEO) as the emulsifier, heating and stirring to form an oil-in-water emulsion; adding tetrabutyl titanate (TBT) to adsorb onto the micelle surface, and then adding formamide solution to initiate TBT hydrolysis and condensation polymerization to obtain PCM; (3) MPPC is prepared by layer-by-layer self-assembly: polyvinyl alcohol / nanocellulose (PVA / CNF) crosslinking layer, PCM layer and MXene layer are sequentially cast and composited, and freeze-dried to obtain high-rate cellulose aerogel MPPC. The MPPC of this invention can be applied to interfacial evaporators to achieve an interfacial evaporation rate of 3.88 kg·m³. ‑2 ·h ‑1 It maintains a strength of 1.65 kg·m² even in dark environments. ‑2 ·h ‑1 .

The invention discloses a ponding monitoring and early warning system based on edge intelligent processing. The ponding monitoring and early warning system comprises a data acquisition module, an edge intelligent processing unit and a decision module. The data acquisition module is configured at an accumulated water monitoring point and is used for acquiring accumulated water depth, water flow velocity and rainfall intensity data; the edge intelligent processing unit is arranged in the monitoring equipment and is used for locally extracting accumulated water depth change rate and change acceleration characteristics, evaluating data priority, identifying accumulated water state abnormity and dynamically deciding a data transmission strategy based on the priority and an abnormal mark; and the decision-making module generates multi-level early warning information according to the received data and can issue an instruction to adjust the transmission priority of the edge equipment. According to the system, real-time analysis and intelligent early warning of ponding characteristics are realized, the early warning timeliness is effectively improved through edge side data processing and dynamic transmission strategies, the data transmission quantity is reduced, and the stability and adaptability of the system in a complex environment are enhanced.

The utility model discloses a kind of waste heat recovery devices for air compressor, it is related to waste heat recovery technical field, and it includes: base, the outer surface rear end top of base is equipped with mounting frame, the inside left and right sides of mounting frame are fixedly installed with locating block, the inside of locating block is inserted with recovery tank, the shaft surface inside rear end of recovery tank is equipped with fixed plate, the outer surface front end of fixed plate is provided with first gear, the innovative combination of rotating heat pipe and gear transmission system is formed, dynamic heat exchange structure is formed, the contact area of cooling liquid and recovery tank fluid is expanded, compared with traditional fixed structure efficiency, modular mounting frame and locating block design realize quick disassembly and assembly, maintenance time is greatly improved, the combination of ground wheel and positioning plate makes device flexible movement and firmly lock, adapt to multi-unit group shared recovery scene, in addition, filter screen and baffle optimize fluid path, so that equipment continuous trouble-free operating time is extended.

The utility model discloses a biological filtration deodorizer for livestock and poultry houses, which comprises an air pump, a gas flow meter, a humidifier, a biological filter and an odor analyzer, one side of the air pump is connected with the gas flow meter, one side of the gas flow meter is connected with the humidifier, one side of the humidifier is connected with the biological filter, and the other side of the humidifier is connected with the odor analyzer. A gas outlet of the biofilter is connected with the odor analyzer, the biofilter sequentially comprises a leachate recovery layer, a gravel layer, a filler A layer, a first spraying layer, a filler B layer and a second spraying layer from bottom to top, the filler A layer and the filler B layer are separated by a perforated partition plate, and the gravel layer and the leachate recovery layer are also separated by a perforated partition plate. The biological filtration deodorizer for the livestock and poultry house is simple to operate, uniform in gas distribution, uniform in malodorous gas dispersion, multi-stage in biological deodorization and good in malodorous gas removal effect, and is used for treating the malodorous gas in the livestock and poultry house.

This utility model discloses a power transmission line inspection robot with long endurance, low difficulty of use, and no need for workers to climb and attach, saving a significant amount of labor costs. It includes: a robot body; a flight mechanism including multiple sets of blade assemblies arranged around the robot body; a robotic arm mechanism including a robotic arm assembly, each robotic arm assembly comprising a rotating shaft and multiple robotic arms, the rotating shaft being rotatably connected to the robot body and drivingly connected to a drive structure, the multiple robotic arms being spaced apart on the rotating shaft; multiple walking mechanisms, each walking mechanism including a power motor and walking wheels drivingly connected to the power motor, the power motor being mounted on the robotic arms; and a gimbal mounted on the robot body.

The invention relates to the technical field of air conditioner refrigeration, in particular to a natural cooling water side circulation device and a refrigeration system and method.The device comprises at least two cooling towers, at least two cooling water pumps and at least two heat exchangers which are sequentially arranged in the cooling water flowing direction; a water distributor is arranged in the cooling tower and is of a disc type structure, original water distribution holes and newly-added water distribution holes are formed in the water distributor in an array mode, and the newly-added water distribution holes are provided with hole opening degree adjusting mechanisms. After the water distribution holes are additionally arranged, the water distribution holes are gradually opened under the condition that the temperature is extremely low, the water distribution capacity of a single cooling tower is improved, and therefore the difference value between the outlet water temperature and the freezing point of cooling water can be increased by additionally arranging a cooling water circulating pump, improving the circulating water amount of the single cooling tower and reducing the temperature difference between inlet water and outlet water of the cooling water; and therefore, the applicable temperature range of the natural cooling technology in severe cold areas is widened, and the operation time of a natural cooling system is prolonged.

The invention relates to a final stage (10) of a vehicle (100) for controlling at least one load (12) having inductive properties, comprising: a control device (14); an input arrangement (16) which can be connected to a voltage source (102) of the vehicle (100); a boost device (18) provided for boosting a voltage (52) of a voltage source (102) of the vehicle (100) to a predetermined boost voltage (46); a high side output contact (11) and at least one low side output contact (13) between which the at least one load (12) can be connected; a high-side switch (24) connected to the input assembly (16) and the high-side output contact (11); a boost switch (42), which is connected to the high-side output contact (11) and to the boost device (18), the control device (14) being designed to switch the boost switch (42) on in order to apply a boost voltage to the load, the control device (14) being designed to switch the boost switch (42) on in order to apply a boost voltage to the load if the boost switch (42) is switched off, and the boost switch (42) being switched off in order to apply the boost voltage to the load if the boost switch (42) is switched off. The control device (14) is designed to switch the high-side switch (24) on in order to apply a voltage (52) of the voltage source (102) to the load if the high-side switch (24) is switched on, and / or the control device (14) is designed to switch the boost switch (42) off in order to apply a voltage (52) of the voltage source (102) to the load if the high-side switch (24) is switched on.