89results about How to "Will not affect the operation" patented technology

The invention discloses a method and a system for detecting and identifying the rotating speed of a wind power generation set. The method comprises the steps of measuring generator bearing pedestal vibration acceleration signals of the wind power generation set, firstly moving a trend item in the signals, and carrying out band-pass filtering, wherein upper and lower cutoff frequencies of the filter pass band respectively take the lowest and the highest rotating frequencies of a generator shaft of the double-fed wind power generation set; carrying out singular value noise reduction processing on filtered signals, and bringing forward a prominent rotating frequency component in the band-pass signals; and finally, carrying out discrete Fourier transform on the filter and denoised signals, and acquiring an estimated value of the rotor rotating frequency by using an interpolation Fourier transform method. According to the method disclosed by the invention, precise estimation for the generator rotor rotating frequency can be given, necessary rotating speed information is provided for fault feature extraction of different components, and rotor rotating speed signals are acquired without installing a rotating speed measurement system, thereby simplifying a vibration monitoring system, reducing the system cost, and being easy for engineering implementation.

The invention relates to a high-availability industrial Ethernet redundancy method, which comprises the following steps: adding a link redundancy entity on an original data link layer of the Ethernet for managing the sending and receiving of data frames of the Ethernet; setting two network adapter drivers relative to an original protocol stack for managing two network adapter interfaces; connecting a double-connected node which comprises the link redundancy entity and the two network adapter drivers to two independent networks respectively through two network adapters; adding a redundancy control tracker for the data frames on the link redundancy entity for distinguishing the data frames with the same content; sending the data frames which have the same content and is provided with the redundancy control tracker to two mutually-independent networks by the double-connected node through the two network adapters; keeping effective frames and discarding copy frames; and setting up a node table. The method has the characteristics of transparency, self-healing property and compatibility and the like; and the reconstruction thereof is simple, and the safety performance of the system is increased so as to enable the system to have high usability.

The invention discloses a battery system. The battery system comprises multiple power supply loops which are arranged in parallel, each power supply loop is provided with multiple battery packs which are connected in series, and each power supply loop is set to be capable of supplying power or cutting off power supply to electric equipment under the control of a control unit. The invention further provides an electric automobile with the battery system, especially, a power lithium battery system or other rechargeable secondary battery systems. The battery system can also be applied to various energy storage systems. By means of the battery system and the electric automobile with the same, the problems of the battery system in the aspects such as reliability, safety, cooling and heating properties and battery protection are effectively solved.

The invention discloses a welding process method of brass H62, which uses a welding wire Scu6810A and a soldering flux CJ301, and uses a manual argon tungsten-arc welding method. The welding process method of the brass H62 comprises the following steps of: firstly, machining a groove of a welding piece, wherein a groove angle is 32.5-37.5 degrees; controlling a truncated edge within a range of 0-1.5 mm; cleaning the welding surface of a welding piece and a welding wire; coating soldering flux paste of the soldering flux CJ301 on the groove of the clean welding piece and an area within a 30-mm range near the groove, as well as the surface of the welding wire; assembling the welding piece with an assembly clearance of 1.5-3.0 mm; pre-heating the welding piece to 200-300 DEG C before welding; welding a welding bead at a bottom layer by using a high-frequency arc striking technology; cleaning the surface of the welding bead at the bottom layer after the welding bead at the bottom layer is welded; coating the CJ301 soldering flux paste on the surface of the welding bead at the bottom layer; welding a filling layer, cleaning the surface of the filling layer after the filling layer is welded, and coating the CJ301 soldering flux paste after cleaning the surface of the filling layer; welding a cover surface layer; welding a weld joint and then pickling, and washing the weld joint with water; and drying with hot air.

An optical repeater connected to an optical transmission line between an optical network unit having an ONU function on the side of a subscriber and an optical line termination (OLT) on the side of a center includes first electrical / optical conversion means connected to a first optical transmission line on the side of the center, a second electrical / optical conversion means connected to a second optical transmission line on the side of the subscriber, and transmission means connected between the first electrical / optical conversion means and the second electrical / optical conversion means to transmit an optical repeater supervisory signal between the optical transmission lines.

The invention discloses a new energy power generation system and a distributed mixing maximum power tracking method. When the system operates, a DC-DC converter and a rear-end centralized converter respectively perform MPPT on the output power difference portion of a single new energy power generating device and the output power of a whole new energy power generation system, at the same time, the DC-DC converter can directly merge the power difference portion of the single new energy power generating device into a rear-end DC bus, and through the mutual coordination and cooperation of two MPPT functions, the whole new energy power generation system reaches maximum power output. According to the invention, the maximum power output of each new energy power generating device in the system can be realized, accurate monitoring of output power can be provided, and precision data is provided for system analysis so that the system can adjust control strategies to improve system generating efficiency, and rapid positioning of problematic assemblies is facilitated.

The invention provides a treating method of reducing the content of the hexavalent chrome in fur. Its features that: spray the solution of the reducing agent with mass percent of 0.5% to 3.0% onto the leather and the semi-manufactured fur operated in damp environment or treat the semi-manufactured fur operated in damp environment in the drum. The inducing agent is once of the ferrous sulphate, ferrous chloride, amine ferrous sulphate, sodium sulfite, potassium sulfite and sodium thiosulfate. The invention can not only be used to treat the leather with the superscale hexavalent chrome, but also treat the semi-manufactured leather during the processing and prevent the formation of the hexavalent chrome in the leather. The invention simple technique and operation, richful resource of inducing agent, low cost, and no influence to the later procedure and quality of the fur.

A distributed new energy power generation system and a distrusted mixed maximum power tracking method. Output ends of a plurality of serially connected new energy power generation devices (1011, 1012, …, 101n) form a high-voltage direct-current bus bar. A DC-DC converter (102) and a backend integrated converter (103) separately perform MPPT on an output power of each new energy power generation device (1011, 1012, …, 101n) and an output power of a whole new energy power generation system. A difference current of the new energy power generation device (1011, 1012, …, 101n) is delivered to the DC-DC converter (102), and the output voltage is adjusted by using the DC-DC converter (102), so that this part of energy is merged into the direct-current bus bar and jointed delivered to the integrated converter (103), and by means of the collaboration of two MPPT functions, the whole new energy power generation system outputs a maximum power.

The invention discloses a portable operation shadowless lamp with a camera shooting function. The portable operation shadowless lamp is characterized in that the portable operation shadowless lamp is provided with a base capable of being dragged and moved, the base is provided with an accommodating box capable of being opened or closed and supporting rods detachably connected, and LED illumination devices and camera shooting devices are arranged at the ends of the supporting rods in a detachable mode; when the portable operation shadowless lamp is not used, the supporting rods, the LED illumination devices and the camera shooting devices are detached and placed into the accommodating box and can be conveniently dragged and moved; when the portable operation shadowless lamp is in use, the supporting rods, the LED illumination devices and the camera shooting devices are sequentially connected and assembled to form a floor shadowless lamp. The portable operation shadowless lamp has the advantages of being convenient to carry and flexible to use. Furthermore, because the portable operation shadowless lamp is provided with the illumination devices and the camera shooting devices, the portable operation shadowless lamp has the operation illumination function and can also conveniently achieve medical camera shooting. According to the portable operation shadowless lamp, the brightness and light spots of the illumination devices can be intelligently adjusted so as to meet different illumination requirements.

The invention discloses a distal locking nail sighting device for an interlocking intramedullary nail, and relates to the technical field of orthopaedic trauma medical instruments. A guide slider is slidably arranged in the guide slider mounting frame of the distal guide rod, Between that mount frame of the guide slider and the guide slider, a first slide movement adjusting mechanism is arranged,a distal guide rod is provided with a first guide hole, the guide slider is provided with a second guide hole, the upper and lower sides of the second guide hole are respectively provided with a firstmetal indicating line, and the side frame of the guide slider mounting frame is provided with a metal graduation line. The calibration slider mounting frame of the calibration lever is slidably provided with a calibration slider, a second slider movement adjusting mechanism is arranged between the calibration slider mounting frame and the calibrated slider, the calibration lever is provided witha first calibration hole, the calibration slider is provided with a second calibration hole, and the upper and lower sides of the second calibration hole are respectively provided with a second metalindicating line. The distal locking nail sighting device solves the problem that the distal end of the intramedullary nail is difficult to lock, shortens the operation time and improves the operationefficiency.

The present invention discloses a large circulation garbage percolate treatment process with a characteristic of adaptability. The process is characterized in that the following improvements are performed based on the conventional garbage percolate treatment process, wherein the improvements comprise that: an ultra-filtration effluent reflux system is added, and comprises four parts such as reflux of ultra-filtration effluent to an adjustment tank, reflux of ultra-filtration effluent to an anaerobic tank, reflux of ultra-filtration effluent to a denitrification tank and reflux of ultra-filtration effluent to a nitrification tank, two parts such as reflux of ultra-filtration concentration sludge to the anaerobic tank and reflux of ultra-filtration concentration sludge to the adjustment tank are added, a pipeline transcending system is added so as to perform direct transcendence entering of the percolate raw liquid into the denitrification tank, and a fuzzy control system is additionally arranged. The process has the following beneficial effects that: self-circulations of various process segments in the system in the large range are flexibly regulated so as to effectively reduce impact on the system due to substantial organic load fluctuation, ensure long time stable operation of the system, and achieve an adaptability function of the garbage percolate treatment process; and structure sizes of various reactors can be properly reduced, capital construction investment and operating cost can be saved, foams in the nitrification tank can be effectively eliminated, and other effects are provided.

The invention discloses a distributed new energy power generation system and a distributed mixing maximum power tracking method. When the system operates, a DC-DC converter and a rear-end centralized converter respectively perform MPPT on the output power difference portion of a single new energy power generating device and the output power of a whole new energy power generation system, at the same time, the DC-DC converter can draw out energy from a rear-end DC bus to offset the difference of the output power of a front-end single new energy power generating device, and through the mutual coordination and cooperation of two MPPT functions, the whole new energy power generation system reaches maximum power output. According to the invention, the maximum power output of each new energy power generating device in the system can be realized, accurate monitoring of output power can be provided, and precision data is provided for system analysis so that the system can adjust control strategies to improve system generating efficiency, and rapid positioning of problematic assemblies is facilitated.

The invention discloses a method for processing network T-S fuzzy system packet loss based on event trigger. Stability and H infinite performance analysis is carried out on nonlinear NCSs (Networked Control Systems) based on an event trigger mechanism, wherein the nonlinear NCSs contain a data packet loss problem. A multichannel event trigger mechanism (ETM) policy based on relative errors is provided. The data packet loss problem and an H infinite state feedback control problem of a kind of nonlinear NCSs are researched. Data packet loss is described as an independent identically distributedBernoulli process. A system model is established through utilization of a T-S fuzzy model and a PDC technology is imported, so a state feedback controller is designed. On the basis of the model, a sufficient condition for existence of a controller which satisfies a system mean square stability demand and an improved H infinite performance index is provided, through utilization of an LMI theory anda Lyapunov-Krasovskii function method. Due to faction of an event trigger, a data transmission rate of a node is obviously reduced.

The electrocoagulator with synchronous smoke sucking function with laparoscope operation consists of electrocoagulating hook, insulating pipe, sucking metal pipe, sucking pipe sheath, electrical exsecting button, electric coagulating button, elastic metal sheet, circuit board, sync valve, handle, independent valve and flexible corrugated pipe connected successively. During laparoscope operation, the electrocoagulator can suck out smoke once it is generated to maintain clear operational view field. The present invention is compatible with available laparoscope equipment and operational condition.

The invention relates to the field of robots, and discloses a demonstrator remote control method and a demonstrator. According to the demonstrator remote control method and the demonstrator, direct point-to-point wireless connection between a demonstrator and a control robot is established, and two error correction control algorithms are combined so as to realize control of a demonstration robot. With application of the demonstrator remote control method, the cable constraint between the demonstrator and the robot can be eliminated, wiring can be simplified and the reliability and the real-time performance of information transmission can be guaranteed.

The invention provides a nitrogen sources ionizing method applied to a gas phase deposition growth system of semiconductor materials. In a growth system of semiconductor materials such as CVD, MOCVD, HVPE and MBE, etc., an external radio frequency field is applied to ionize nitrogen sources. The high frequency electric current is applied to electrodes of capacitances or inductance coils, and the high frequency electric field is applied by a gas path arranged between the capacitance plates or circling the inductance coils to speed up electrons and ionize gas molecules to generate plasmas. The device consists of a metallic flange(1), a cooling water pipeline(2), a quartz outer cover(3), a quartz fairing(5), a metal cover(6), a parallel plate capacitor(7), a thermoelectric couple(8), graphite(9), a bleeder hole(10), a radio frequency adapter(11), a radio frequency power source(12) and an air inlet(13), wherein the metallic flange(1) and the metal cover(6) are arranged on both ends of the quartz outer cover(3), and the gas path circling the air inlet(13) or the gas path of a growth platform is provided with capacitances or inductance coupling elements.

The invention discloses a clothes dryer which is provided with a drying drum and an air pipeline connected with the drying drum and further comprises a cavity formed in the wall of the air pipeline, a flushing device arranged in the cavity, and a filter screen divided into a first portion and a second portion by a baffle. The first portion and the second portion are located in the air pipeline and the cavity respectively, the baffles isolates the cavity and the air pipeline, and the space positions where the first portion and the second portion are located are exchanged by moving the filter screen. By the adoption of the clothes dryer, the problem that a filtering device of a clothes dryer in the prior art is conveniently cleaned automatically is solved. On one hand, the filter screen can be automatically cleaned in the drying process, the operation of the dryer is not interfered; on the other hand, convenience is brought to a user to clean fluff and other impurities left after filtration during dryer working.

The invention discloses a control method for inhibiting a continuous commutation failure of high-voltage DC power transmission based on harmonic detection, and belongs to the technical field of thermo-optic and electro-optic. The method comprises the steps: deducing control parameters of each harmonic control loop by a time area analysis method, and adding the control parameters into low-voltage current-limiting control of an original control system; when the high-voltage direct-current system has a commutation failure, detecting the voltage of the commutation bus, performing Fourier decomposition, and performing the inhibition of each harmonic component through a newly added harmonic control system, thereby achieving the purpose of inhibiting the subsequent commutation failure. Accordingto the invention, no primary equipment is added, and only a control system is improved, so the system transformation workload is low, namely, the cost is low; when a harmonic voltage of the system isdetected, the control method provided by the invention improves the performance of low-voltage current-limiting control (VDCOL) by reducing the influence of the harmonic component, achieves the effectof inhibiting the continuous commutation failure, reduces the risk of DC locking, and improves the safety and stability of system operation.

The invention relates to a method for testing the short circuit of a medium-voltage busbar of an EMU (electric multiple units) train. The method comprises the steps of (1) setting multiple auxiliary converters in the train, setting N coupling switches on the medium-voltage busbar, wherein the auxiliary converters are connected in parallel for output, the coupling switches are switched on in normalworking, and the medium-voltage busbar connects the whole train, (2) firstly confirming whether a short circuit fault is an auxiliary converter internal fault once the vehicle has the short circuit fault and reducing a fault range, (3) allowing a vehicle to start an external short-circuit test program if the auxiliary converter has no internal fault, switching off the N coupling switches, dividing the medium-voltage busbar into N+1 segments, and then inputting the auxiliary converters to judge a faulty busbar segment, and (4) switching off one or two adjacent coupling switches after confirming the faulty busbar segment, switching on coupling switches which are not adjacent to the faulty busbar segment to ensure the normal working of a medium-voltage load of a busbar segment which is not in short circuit. According to the method, a line fault point can be refined, the fault influence range is reduced, even the fault influence can be avoided, and the vehicle operation is maintained to the maximum extent.

The invention discloses a method for detecting whether the distance between a subway platform shielded gate and a vehicle body is safe. According to the method, a two-dimensional laser scanner is installed at the point where the midperpendicular of the rear surface of a railway vehicle intersects with the plane where the bottom edges of vehicle doors are located, an angle encoder is installed on the head of an axle, a polar coordinate storage module, a data processing host and a mileage positioning module are installed in a compartment, spatial three-dimensional coordinates are obtained through processing of the data processing host by means of the distance between the scanner and the shielded gate obtained by the two-dimensional laser scanner and the advancing mileage of the vehicle obtained by the angle encoder and the mileage positioning module, then specified vehicle limit coordinate values are introduced to the same three-dimensional coordinate system, and the actual distance between the vehicle body and the shielded gate is measured and then compared with the specific safety distance so that whether the distance between the shielded gate and the vehicle meets safety requirements can be judged. According to the method, vehicle-mounted dynamic detection is achieved, detection precision is improved, operation is easy, realizing cost is low, and application and popularization are facilitated.

The invention relates to a software architecture design method of an embedded machine learning system. According to the invention, during software development, the overall software structure is divided into a main adjustment module, an algorithm I / O module, an algorithm interface module, a training data module, a model configuration module, a machine learning module and a visual interface module,and the natural language processing machine learning system for text processing in the enterprise-level information management system is achieved; and the system is high in stability, supports multi-language parallel development, and is efficient in training data processing and wide in application environment range.

The invention provides a waste single battery crushing system and process. The crushing system comprises a battery crusher, a low-temperature baking furnace, a first hammer mill, a first linear sieve, a magnetic separation mechanism, a second hammer mill, a cyclone dust collector, a drum sieve, a second linear sieve and a gravity separation system, wherein a first negative pressure adsorption system is arranged above the battery crusher and the low-temperature baking furnace; a second negative pressure adsorption system is arranged above the first hammer mill, the first linear sieve, the magnetic separation mechanism, the second hammer mill, the drum sieve and the gravity separation system; the first negative pressure adsorption system is connected with a waste gas treatment system; and a dust collection treatment system is connected to the portion above the second negative pressure adsorption system and the cyclone dust collector. The waste single battery crushing system integrates crushing of waste single batteries, recovery and disposal of electrolyte, baking of crushed materials, grinding of the crushed materials, screening of magnetic shells, recovery of positive and negative electrode powder, recovery of diaphragm paper, recovery of copper and aluminum foils and dust collection treatment, and the purpose of recycling resources is achieved.

The invention discloses a high-power direct current pulse power supply. The high-power direct current pulse power supply comprises a rectification power supply, a positive pole confluence busbar, a negative pole confluence busbar, a pulse controller and multiple basic units; a positive pole of the rectification power supply is connected with the positive pole confluence busbar, a negative pole of the rectification power supply is connected with a negative pole confluence busbar, the multiple basic units are arranged between the positive pole confluence busbar and the negative pole confluence busbar in parallel, and the pulse controller is connected with each basic unit. The high-power direct current pulse power supply has the advantages that each electrolysis unit adopts a distributed structure, pulse direct current power supply is realized for each electrolysis unit by virtue of a pulse transformer provided with a pulse driving tube and by utilizing a magnetic balance principle and vector superposition effect of electric quantity, capacity is not limited, demand of pulse power supplies in any specification and at any voltage and current grades can be met, and a transformer is adopted as a pulse generating element, so that loss of the high-power direct current pulse power supply is far lower than on-state loss of power electronic devices such as an IGBT and an MOSFET.

The invention discloses an elevator operating state monitoring system and method. The elevator operating state monitoring system is used for monitoring an elevator including an elevator controller anda signal processing board. The elevator operating state monitoring system comprises a remote monitoring platform, a network system and a data acquisition unit. The remote monitoring platform is connected with the network system, and the network system is in wireless connection with the data acquisition unit. Serial port pins of the elevator controller are connected with serial port pins of the signal processing board. Parts of the serial port pins of the elevator controller are further connected with serial port pins of the data acquisition unit. The data acquisition unit is used for collecting elevator data from the parts of the serial port pins of the elevator controller and further sending the collected data to the remote monitoring platform so as to monitor the operating state of theelevator. Therefore, the effects of decreasing the number of failure nodes, reducing installation cost and capable of not influencing an original elevator system are achieved; and the problem that data acquisition ports are incompatible is further solved.

The invention relates in particular to a housing for protecting and masking a toilet bowl whose top part is provided with a peripheral inwardly folded edge which delimits with the bowl a water distribution channel and which is characterised in that it consists of a body (30) and a cover part (32) which is open in the center thereof, is independent of said body (30) and is arrangeable on the body in such a way that it covers the peripheral edge (11) of the bowl, wherein the body (30) is provided with an anchoring part (5) interacting with the cover part (32) and said anchoring and cover (32) parts comprise complementarily shaped connecting means (51, 330).

The invention discloses a process for recovering light hydrocarbons from a crude oil distillation device, as well as a system. The process comprises the following steps: a liquid-gas jet pump is added to the crude oil distillation device, and overhead gas is introduced; rich absorbent oil at the bottom of a reabsorber of a catalytic cracking unit is used as jet liquid, and excessive pressure of the rich absorbent oil can be used for pressurizing overhead gas; the pressurized gas and the rich absorbent oil enter a main fractionating tower together through an original rich absorbent oil flowing path; in cooperation with the process, the low-pressure-drop liquid-gas jet pump is designed based on specific process conditions. By substituting the static equipment jet pump for a gas compressor, the process and the method have the advantages of low investment, no new energy consumption, simple process, high implementation property, and no influences on production or operation of the crude oil distillation device and the catalytic cracking unit, and are quite easy to popularize.

The image reader according to the present invention comprises a housing having substantially a box-shape and having an image reading surface contacting a document, a document detecting section provided to this image reading surface for detecting a document P, and an image reading section for reading an image on the document when the document P is detected by the document detecting section 105. This image reader enables improvement in convenience for users, operability, and adaptability for handling, and also it is small in size.

The invention belongs to the field of sewing machines and particularly relates to a rear-cutter trimming device of a sewing machine. The rear-cutter trimming device is characterized in that a trimming step or a trimming groove are formed in a rack at the rear portion of a needle plate, a fixed cutter is installed on the side wall of the trimming step or the trimming groove, a cutter bar is rotatably installed on one side of the trimming step or the trimming groove, a moving cutter is installed on the cutter bar, and the moving cutter is attached to the fixed cutter; a driving mechanism used for driving the cutter bar to rotate is arranged on the lower side of the rack. The trimming step or the trimming groove are formed in the rack, the fixed cutter is installed on the side wall of the trimming step or the trimming groove, the moving cutter is assembled on the rack, trimming is performed by cooperation of the moving cutter and the fixed cutter, the moving cutter is usually concealed at the lower portion of the rack, and no affect is caused to operation.