93results about How to "Does not affect output" patented technology

An apparatus for processing an audio input signal is provided and includes an audio processing circuit and an audio compressing circuit. The audio processing circuit receives the audio input signal, and enhances a first frequency part of the audio input signal to output a bass-enhancement signal. The audio compressing circuit is coupled to the audio processing circuit, and reduces a gain of a second frequency part of the bass-enhancement signal to output an audio output signal.

The invention discloses a grid electrode driving circuit, a driving method and a liquid crystal display device. The grid electrode driving circuit comprises a multi-stage bidirectional shift register, a first reset circuit and a second reset circuit, wherein the first reset circuit comprises a first input end, a second input end, a first clock control end, a reset output end and a low level signal end, the first input end and the second input end are electrically connected with an input end of a primary bidirectional shift register and a reverse pulse input end respectively, the first clock control end is in signal connection with a second clock, and the reset output end is connected with an output end of the primary bidirectional shift register. The problem that the primary bidirectional shift register and the last bidirectional shift register in the circuit of the bidirectional shift register cannot be correctly reset through STV (Subscription TeleVision) signals is solved by the grid electrode driving circuit, the driving method and the liquid crystal display device.

The invention discloses a large-scale electric vehicle trunking system based on MMC and a control method thereof. The large-scale electric vehicle trunking system is characterized in that three phase elements composed of an electric reactor, an H-bridge module and a sub-module are connected to an alternating current power grid through an LC filter to form a topological structure of the large-scale electric vehicle trunking system based on MMC, virtual electrical charge states are calculated through the initial electrical charge state, user set standing time and expected electrical charge state of each electric vehicle, the sub-module of the electric vehicle corresponding to a driving signal generated by each carrier signal is determined according to the ranking of the virtual electrical charge states, the differentiation control for electric vehicle charging and discharging power connected to the sub-modules according to user requirements is realized, and the control for three-phase power balance and unit power factors on a power grid side is realized. The system is high in integration degree, high in modularization degree, high in efficiency, little in harmonic distortion, low in switching loss and high in fault-tolerant capacity, and independent control for the sub-modules in each-phase bridge arms can be realized.

The invention belongs to the technical field of visual data processing. The invention discloses a chart data custom action data interaction method and system. By calculating and analyzing the data mapping relation, returning the data mapping relation to the customized and carrying out rendering, the problems of inflexible linkage interaction relation of most of visualized data and relatively longrepeated period cost are solved, and the data and the effect of a visual interface can be freely and flexibly combined and interacted; A pseudo name replacement algorithm, a data interaction algorithm, an active sending definition relational data scheme and other schemes are used. According to the invention, the updated data content is further displayed by the object according to the user-definedinteraction behavior edited by the user operation through the intelligent algorithm; The method comprises the following steps: constructing a graph canvas, rendering the graph canvas into the constructed graph canvas, rendering the timing or directional display of the processing data into an image, and manufacturing a big data visualization screen, thereby achieving a richer and more user-defineddata visualization display effect.

The invention discloses an intelligent LED lighting device and an intelligent LED lighting system. The intelligent LED lighting device comprises an LED lighting unit, an LED drive, a power supplying unit, an image acquiring unit, an intelligent video analyzing and controller unit and a radio frequency unit. The image acquiring unit, the intelligent video analyzing and controller unit and the radio frequency unit are connected sequentially. The image acquiring unit is used for acquiring and inputting images to the intelligent video analyzing and controller unit to process and analyze data, and the intelligent video analyzing and controller unit sends processed data signals to the radio frequency unit. The intelligent LED lighting system comprises at least one intelligent LED lighting device and a data managing center communicating with the intelligent LED lighting device. The device and system adopt intelligent image analyzing technology, ordinary LED lighting is provided while the device and system can be used for monitoring and counting personnel quantity, personnel intensity and personnel transferring situations remotely in real time, higher accurate rate as compared with an infrared manner on current market can be acquired, better thermal imaging cost-effective products can be obtained, and the radio frequency technology is adopted to facilitate networking.

The invention provides a detection method of unintentional islanding effects with reactive current disturbance based on amplitude changes and suitable for a small wind-power or photovoltaic grid-connected inverter and a device of the detection method of the islanding effects with the reactive current disturbance based on the amplitude changes. The detection method does not need to change output work frequency and does not influence output current harmonic. The detection method has the advantages that (1) a method of reactive base wave current injection is utilized so that output of actual active power is not influenced, harmonic current is not generated, and quality of output electric energy is ensured; and (2) the amplitude of reactive current is changed periodically, the islanding effects are judged by judging voltage amplitude change conditions of connection points, and the condition that overlarge current disturbance is injected to meet needs of over-voltage or under voltage is avoided.

The invention discloses an oil-based liquid-state fracturing fluid thickening agent, and preparation method thereof. Density of the oil-based liquid-state fracturing fluid thickening agent ranges from 0.9 to 1.2g / cm<3>; gelling time is 20s or less; and viscosity of 1.2% of the oil-based liquid-state fracturing fluid thickening agent after dissolving is 30mPa.s or more. The invention also discloses a preparation method of the oil-based liquid-state fracturing fluid thickening agent.

The invention discloses a heterogeneous function equivalent synchronization device, comprising multiple heterogeneous function equivalents for providing service for external service requests; a scheduler for scheduling the heterogeneous function equivalents; and a synchronizer arranged between the heterogeneous function equivalents and the scheduler. The synchronizer is used for obtaining output results of the heterogeneous function equivalents, synchronizing the output results of the heterogeneous function equivalents, generating a target processing result and sending the target processing result to the scheduler. The synchronizer synchronizes the output results and working states of the heterogeneous function equivalents, the problem that the scheduler cannot identify different outputs of the heterogeneous function equivalents is overcome, the differences of different heterogeneous function equivalents on output service response are shielded, network attackers are difficult to sniff or scan defects or vulnerabilities in the device, and the security of the device is improved.

The invention discloses an optical sensor-based rotor position detection method for a permanent magnet spherical motor. The method comprises the permanent magnet spherical motor, a hemispherical housing, an optical sensor-based hardware detection circuit, an ARM development board and a position calculation algorithm; and the method is characterized in that the hemispherical housing is fixed on anoutput shaft of a rotor of the spherical motor; two optical sensors are fixedly arranged on a stator housing of the spherical motor at an interval of 90 degrees; displacement information of the surface of the moving hemispherical housing is obtained by the two optical sensors through detection; a yaw angle and a pitch angle of movement of the hemispherical housing are obtained through position calculation on the displacement information; and a position coordinate of a P point on the hemispherical housing is obtained through calculation. The spherical rotor and the hemispherical housing are coaxial and concentric, so that the position coordinate of an S point on the spherical rotor can be obtained according to the relationship between the radiuses of the spherical rotor and the hemispherical housing. A hardware structure on which the method disclosed by the invention is based is relatively simple, the position coordinate calculation algorithm is easy to implement, the detection error isrelatively small and the method has relatively high practical application value.

The invention relates to a high voltage DC power flow controller comprising two sets of modular multilevel converters. The two sets of modular multilevel converters are connected in series, and one end is accessed to the positive electrode and the negative electrode of a DC power grid and the other end is interconnected and grounded so as to form a neutral point. According to the technical scheme, an external power supply does not need to be connected so that the structure is simple, the fault processing capacity is high and the operation efficiency is high.

The invention discloses an isolated direct current converter applicable for a medium-voltage direct current system and a control method thereof. The direct current converter is of a modularized combined structure for a plurality of power modules through serial connection during input and parallel connection during output, and each power module consists of a switching circuit and an isolated switching circuit cascade connection. Each switching circuit consists of a switching switch, a switching power device and a short circuit prevention diode, and is used for controlling the switching and elimination of the corresponding control module, so that redundant operation and rapid fault isolation of the system are realized; when an external fault appears, the fault can be quickly eliminated, andwhen an internal fault of the module appears, the fault module can be quickly eliminated, so that normal operation of the converter is guaranteed; simultaneously, input and output voltage matching ofeach module can be guaranteed, so that the stress of voltage and current on the power device is reduced; and after the fault is eliminated, the converter also can be quickly used. The converter disclosed by the invention is high in reliability and long in service life, and is applicable for the applications such as long-distance underwater electric energy supply, interconnection of direct currentmicrogrids with different voltage levels and electrolytic aluminum and sea water desalination industries.

The invention discloses a gold / silver / polymer / silver nanoplate core-shell material and a preparation method thereof. The gold / silver / polymer / silver nanoplate core-shell material and the preparation method thereof have the characteristics that the core-shell nano material comprises a gold nano core, a second silver layer, a third polymer layer and a silver shell sequentially; the core is a gold nanoparticle with the particle diameter of 30-60 nanometers; the second layer is the silver layer with the thickness of 5-20 nanometers; the third layer is the polystyrene polyacrylic acid segmented copolymer layer with the thickness of 10-15 nanometers; the outermost layer is the silver nanoplate shell layer with the particle diameter of 350-500 nanometers; and the material is prepared through a seed inducement method, is of a novel four-layer core-shell structure and has the advantages that under the action of external exciting light, an intercoupling effect can be generated between surface local electromagnetic fields generated by the four layers, SERS signal output with very high intensity is generated, and preparation process is simple, the period is short, yield is high, and popularization and large-scale production are easy.

The invention discloses a voltage stabilization and current sharing charge control method of a three-phase interleaved parallel LLC resonant converter. The control method of the converter is achieved mainly by adopting a voltage-type PFM (pulse width frequency modulation) control method and a control method combining with formula (shown in the description) control, and formula (shown in the description) control is compensated by introducing a formula (shown in the description) zero-returning controller, the influence of nonuniform electric current caused by errors of an electromagnetic device is eliminated, output current ripples are reduced, the service life of the converter is prolonged, the conversion efficiency and dynamic stability of a resonant transformation circuit system can be improved, and the voltage stabilization and current sharing charge control method has an important application significance.

The invention provides a multi-positioning printing method for paperboard color printing. The multi-positioning printing method comprises the following steps that in the multi-color register printingprocess, when a printing pattern of a single pattern layer is printed, a plurality of positioning lines are printed outside the printing pattern at the same time, and the positioning lines printed inthe previous printing step are taken as benchmarks for positioning in the later printing step. According to the method, the positioning line of each pattern layer can be printed simultaneously when the pattern layer is printed, the positioning lines printed in the previous printing step are taken as the benchmarks for positioning during printing of the later pattern layer, only errors caused by positioning of the positioning lines in the printing process exist, the errors cannot be accumulated in the later printing process, in this way, compared with a positioning mode that all the pattern layers in an original printing mode take one positioning line as a benchmark, error accumulation is avoided, the printing precision is improved, the edges of printed patterns are clear, lines are clear,and colors are more gorgeous.

The invention discloses a gas turbine inlet air treatment method integrating pollutant cleaning filtration and evaporative cooling and belongs to the technical field of energy. The method comprises the following five steps: air inlet filtering, rotary-wheel dehumidification, evaporative cooling and air inlet cleaning, water removal and water regeneration. Air inlet of the gas turbine is subjectedto cleaning, dust removal, haze removal, gas pollutant cleaning and evaporative cooling, cooling water is sprayed into dried air subjected to rotary-wheel dehumidification, and dust and haze particlesas well as gas pollutants which can be dissolved into water or can carry out a chemical reaction with the water and cannot be filtered and cleaned by the existing filtering system, such as SO2, NOx and the like, are removed. The air inlet temperature is lowered by water vapor heat absorption, and the effect of performing integrated cooling and cleaning on inlet air is achieved.

The invention discloses a DC side voltage balance control method for a three-level converter. The method comprises the following steps of: S1, acquiring a DC side positive bus capacitor voltage and aDC side negative bus capacitor voltage, S2, acquiring an inductive current and acquiring the direction of the inductive current through the inductive current, S3, controlling on or off of a fourth switching tube to adjust the DC side positive bus capacitor voltage and the DC side negative bus capacitor voltage in the case when the DC side positive bus capacitor voltage is higher than the DC side negative bus capacitor voltage and the direction of the inductive current is positive; and S4, controlling on or off of a first switching tube to adjust the DC side positive bus capacitor voltage and the DC side negative bus capacitor voltage in the case when the DC side positive bus capacitor voltage is lower than the DC side negative bus capacitor voltage and the direction of the inductive current is negative. According to the method, hardware cost does not need to be increased, SPWM modulation is still adopted, the implementation mode is simple, and output of normal three-level voltage is not affected in the process of balancing a neutral-point voltage.

The invention relates to a method for controlling an RFID full-automatic coding product inspection device. An upper computer module, an automatic module and an RFID function module are interacted with an operator, after feeding and locating are carried out on an RFID, product inspection or coding is carried out on the current RFID through the RFID function module, then a complete operation period of a data log is generated, repeated feeding of the single RFID is controlled through the automatic module to complete circulated operation of multiple RFIDs, and roll-shaped RFID mass 100% coding or product inspection is achieved. By means of the method, the upper computer module and automatic module interaction control mode is adopted, coding, product inspection and production log output are not influenced under any condition or during temporary stoppage, the function of breakpoint saving continuing tasks or the function of restarting the tasks is achieved, and meanwhile the function of automatically locating breakpoints at any time can be achieved.

The invention discloses a material sorting process based on an annular conveying device and relates to the technical field of the packaging process. Through the annular conveying device, materials arefed one by one and arranged side by side; the arranged materials arrive at the discharge end, a set number of materials are arranged to form a group of materials to be discharged from the discharge end; when discharged, the materials are static relative to the discharge end; the materials are fed one by one at the feed end. Through the material sorting process, the materials are arranged and sorted through a conveyor belt; feeding and discharging have no influence on each other; the materials are continuously arranged one by one; and the material sorting efficiency and production efficiency can be effectively improved.

The invention discloses a low-NOX combustion technology coupling active ammonia synergistic denitration device for a coal-fired industrial boiler. The low-NOX combustion technology coupling active ammonia synergistic denitration device comprises a low-NOX combustion technology assembly and an active ammonia synergistic denitration assembly. According to the low-NOX combustion technology coupling active ammonia synergistic denitration device, the low-NOX combustion technology is mainly adopted, recycled flue gas is fed into different positions of a hearth in a layered mode, layered control is implemented, the recycled flue gas and ascending airflow are fully mixed, and therefore the standing time of the ascending airflow in the boiler is prolonged, generation of nitric oxide is reduced, andthe initial emission concentration of the nitric oxide is reduced; meanwhile, an online monitor feeds the concentration of the nitric oxide in the flue gas at an outlet of the boiler back to a central controller, the central controller is automatically coupled with active ammonia for synergistic denitration based on the monitoring result, the influence of the type of the boiler and the temperature in the boiler is avoided, the investment is small, the consumption of carbon-based reducing agents, water and energy is small, the operation cost is low, the occupied area is small, the emission value of the nitric oxide is controlled to be 50mg / Nm <3> or below, the denitration efficiency reaches up to 80% or above under the low operation cost, and the increasingly strict emission standard is met.

A measurement circuit in a motor circuit generates signals for use in a motor control strategy for an electric motor. The measurement circuit comprises a first current sensing means which produces an output signal indicative of the current flowing in a di / dt path connecting the phases of the motor to a ground or a common positive supply voltage, and further comprises a second current sensing means which produces an output signal indicative of the rate of change of current flowing in the ground line, and in which the second current sensing means comprises a Rogowski coil.

The oil-free directly-ignited burner for induced heating coal powder boiler has power source system, cooling water system and igniter. The igniter includes one first stage and one second stage, the first stage has the first coal powder inlet, inducing metal pipe with heat insulating layer, inducer outside the heat insulating layer, sealing flange with sealing material outside the inducing metal pipe outlet, ring blast chamber, and combustion stabilizing chamber in the outlet of the ring blast chamber; the second stage has the second coal powder inlet, fire observing hole, the second igniter and flow guiding partition set between second igniter and the combustion stabilizing chamber. The present invention has the advantages of cold start and flow stabilization of coal powder boiler without oil, gas and other supplementary material, convenient regulation, stable running, multistage ignition, low running cost, less maintenance and high reliability.

The invention relates to a method for installing and fixing a large lining plate for a metallurgical steel slag treatment hot stuffy tank. The method is characterized in that: plate blanks serving as lining plates lean against an embedded iron plate on the wall of the hot stuffy tank in certain angles and play a role in structure stabilization by using dead weight, and certain gaps are reserved on the plate blanks and the cement tank wall to form a heat insulation layer so as to play a role in protecting the tank wall. At the lower ends of the plate blanks, stop iron and wedge iron are welded close to two sides of the plate blanks by using tank bottom steel plates to form inner wedge and outer stop; and the degree of freedom of the plate blanks is controlled, and the extension of the plate blanks is not affected, so that the stress of the plate blanks is fully released and the influence of expansion with heat and contraction with cold on the lining plate is eliminated. The plate blanks are connected by hooks and iron bars to form a whole. A door shape is welded on an embedded steel plate on the upper part so as to reinforce the upper parts of the plate blanks. The method stabilizes the structure of the lining plate, enables the lining plate to resist impact, reduces the damage rate of the lining plate, prolongs the service life of the lining plate, is convenient for construction, and can save a large amount of fund.

The invention discloses a control method of an automatic sorting system. The control method of the automatic sorting system relates to the technical field of packaging equipment control, and comprisesa control flow A, a control flow B and a control flow C, wherein the control flow A is mainly characterized by arranging materials between a feed inlet and a discharge hole, and arranging the materials with the setting number on the discharge hole; the control flow B is characterized by controlling a circulating transportation mechanism to be still relative to the discharge hole, and controllingthe circulating transportation mechanism to rotate at a trough gap relative to the feed inlet; and the control flow C is characterized by controlling the circulating transportation mechanism to move troughs with the setting number relative to the discharge hole, and controlling the circulating transportation mechanism to rotate at the trough gap relative to the feed inlet. According to the controlmethod of the automatic sorting system provided by the invention, the sorting and transporting efficiency can be effectively improved, the material sorting accumulation amount is improved, and the packaging efficiency is further improved.

The invention discloses an auxiliary winding device of a cotton lap doubling machine. The auxiliary winding device comprises a rotating shaft, a lap pressing device, a rotation driving device and a control system. Two ends of the rotation driving device can be rotatably positioned on two vehicle body stand columns. One end of the lap pressing device is fixedly poisoned on the peripheral outer side face of the rotation shaft, and the other end just stretches into a gap in the front end between a cotton roll and a winding belt in the winding direction; the other end the lap pressing device can tightly press the surfaced of the lap; the rotation driving device drives the rotating shaft to rotate; and the control system controls the rotation driving device to run. In this way, the auxiliary winding device can provide auxiliary protection for and flatten cotton surfaces of the laps and prevent the cotton surfaces from abnormal layering; the wound laps can be clearly layered, and sticky laps, sticky layers and pilling laps are avoided; a cotton lap doubling machine can wind laps at a high speed of 200m / min; and irregularity of weight of combing laps is improved.

In order to solve the technical problems that a traditional heat dissipation scheme of a battery cabin section of an underwater vehicle is low in heat dissipation efficiency and not obvious in effect, and the temperature of the battery pack cannot be effectively reduced in a short time, the invention provides the high-thermal-conductivity lithium battery pack for the underwater vehicle. According to the invention, the gaps inevitably formed when the cylindrical lithium batteries are arranged are effectively utilized, the gaps are filled with the high-heat-conduction and insulating heat-conduction gap filling material, and heat in the centers of the batteries can be rapidly conducted to the inner wall of the shell of the battery cabin section through the heat-conduction material, so the heat is further conducted to low-temperature seawater outside the battery cabin section, and the purpose of rapid cooling is achieved; the periphery of each cylindrical lithium battery is filled with the heat conduction gap filling material, so that the temperature uniformity can be well ensured; meanwhile, the central gap formed by the cylindrical lithium battery on the innermost ring is reasonably utilized, the central tube is arranged in the central gap, and the central tube is filled with the high-heat-absorption composite material, so heat generated by the battery pack can be quickly and effectively absorbed, and the temperature of the battery pack is reduced.

The invention discloses a pneumatic thin film performing mechanism with a built-in type anti-rotating device. The performing mechanism comprises a film cover component, a membrane, a tray, an elastic element and a push bar, wherein the membrane is fixed on the inner side of the film cover component, the tray is fixed on membrane, two ends of the elastic element are respectively connected with the film cover component and the tray, one end of the push bar is fixed on the tray, and the other end of the push bar penetrates through the film cover component and is exposed outside the film cover component. The pneumatic thin film performing mechanism is further provided with the built-in type anti-rotating device. The film cover component comprises an upper film cover, a connecting pipe and a lower film cover, wherein the upper film cover, the connecting pipe and the lower film cover are sequentially connected, and an anti-rotating guide component used for limiting a moving track of the built-in type anti-rotating device is arranged on the inner side of the connecting pipe. One end of the built-in type anti-rotating device is fixedly connected to the tray, and the other end of the built-in type anti-rotating device is connected with the anti-rotating guide component. The built-in type anti-rotating device can move along a track limited by the anti-rotating guide component. The built-in type anti-rotating device is arranged in the pneumatic thin film performing mechanism, not only is travel of the pneumatic thin film performing mechanism not affected, but also the push bar can be prevented from rotating.

The invention discloses a paddle blade anti-touch device for a refrigerating fan convenient to install. According to the technical scheme, the blade anti-touch device comprises a fixing plate, whereinthe fixing plate is arranged in front of a fan blade in the refrigerating fan. The fixing plate is clamped in an outer frame of the refrigerating fan. A plurality of long-strip-shaped grid holes arearranged in the fixing plate. A first fixing block is fixed on the fixing plate. A sliding chute is arranged in the first fixing block. An inserting block is arranged in the sliding chute in a slidingmode. An inserting groove allowing the inserting block to be inserted is arranged in the outer frame. A spring is connected between the bottom of the sliding chute and the inserting block. The outerframe is further provided with a threaded hole which leads to the groove bottom of the sliding chute. The threaded hole is in threaded connection with a screw rod. The paddle blade anti-touch device for a refrigerating fan convenient to install can prevent people from touching the fan blades mistakenly, so that people can be prevented from being injured when touching the fan blades. The fixing plate in the paddle blade anti-touch device for the refrigeration fan convenient to install is relatively convenient to install, and the installation structure is relatively reliable.

The invention discloses a sewage treatment device based on nanobubbles. The sewage treatment device comprises a hard inner air pipe, one end of the hard inner air pipe is connected with an air source, and the other end of the hard inner air pipe is closed; an elastic micro-nano aeration pipe sleeves the outer side of the hard inner air pipe, and two ends of the elastic micro-nano aeration pipe are hermetically connected with the outer side of the hard inner air pipe; a plurality of first air holes are formed in the side wall of the hard inner air pipe in the corresponding elastic micro-nano aeration pipe; the outer side of the hard inner air pipe is sleeved with a hard retaining pipe, the two ends of the hard retaining pipe are fixedly connected with the outer side of the hard inner air pipe, the elastic micro-nano aeration pipe is located in the hard retaining pipe, and a gap is formed between the elastic micro-nano pipe and the hard retaining pipe; the hard retaining pipe is provided with a plurality of ventilation channels; the outer side of the hard retaining pipe is covered with a filter layer; the hard retaining pipe for limiting the expansion degree of the micro-nano aeration pipe is arranged on the outer side of the micro-nano aeration pipe so that the expansion uniformity of each part of the micro-nano aeration pipe is improved, and the aeration effect is improved; in addition, the uniformity of air supply is improved, and blockage is reduced.