37results about How to "To achieve the effect of filtering" patented technology

The device includes voltage detection unit at net side, current detection unit at net side, device of picking-up fundamental current at load side, digital signal processor DSP and control system based on DSP, generator of pulse-width modulation, inverter and LC filter. Structure and control method of combining unsmoothed nonlinear control with observer of expanding state are utilized in the invention. Output, derivative and unknown internal and external interference are observed through observer of expanding state. Harmonic opposite phase compensation is converted to tracking of ideal sine signal. Wattless dynamic compensation is realized through voltage-controlled reactor so as to reduce capacity of inverter to minimum and play filtering action. The invention integrates active filtering, passive filtering and wattless dynamic compensation.

Disclosed is an all-fiber stimulated Raman scattering light stripper. The all-fiber stimulated Raman scattering light stripper comprises a blazed fiber grating or a long-period fiber grating, an optical adhesive and a cooling metal block. A coating of a grating area of the blazed fiber grating or a long-period fiber grating is removed to be placed in a metal block lower block with a straight groove, the integral straight groove is filled with the optical adhesive and the solidification is performed, and a metal block upper block covers the straight groove to achieve the encapsulation. According to the all-fiber stimulated Raman scattering light stripper, the structure is simple, the sustainable laser and stimulated Raman scattering light is high in power, the multistage stimulated Raman scattering light can be stripped, and accordingly the all-fiber stimulated Raman scattering light stripper can be applied to a high-power fiber laser and a high-power fiber amplifier.

The invention discloses a method for quickly extracting star points from star images. The method includes: according to a clustering concept, adopting part of star point pixels for coarse positioning of star points so as to realize rough estimation on center coordinates of star point dispersion regions; taking the center coordinates of the star point dispersion regions as seed points to automatically screen star point pixels according to a seed point area region growing method; according to characteristics of star point energy distribution, correcting gray values of the star point pixels; adopting a centroid calculation formula for precision positioning of the star points. Since star point extraction operations are centered in local ranges of the star point dispersion regions by means of coarse positioning of the star points, start point extraction speed can be increased; correction of the gray values of the start point pixels is simple and feasible, and image filtering effects can be achieved while more algorithm time and cost are saved as compared with those of image filtering.

The invention discloses a filtering reducer with high reliability and precision, which comprises an eccentric power input shaft, a duplicate gear, an internal fixing gear and an internal power output gear, wherein an eccentric section is arranged on the eccentric power input shaft; the duplicate gear comprises an external gear I and an external gear II, and rotationally matched with and mounted on the eccentric section in a sleeving manner; the internal fixing gear and the external gear I form a small tooth difference engagement pair I; the internal power output gear and the external gear II form a small tooth difference engagement pair II; and elastic grooving filtering structures are arranged in the small tooth difference engagement pair I and the small tooth difference engagement pair II, and comprise gear tooth grooves formed in gear teeth of the gears. Each gear tooth groove comprises two curved gear tooth grooves and a straight gear tooth groove, wherein the curved gear tooth grooves and tooth outlines of gear teeth form equidistant curves respectively; and each straight gear tooth groove is formed between a tooth crest of each gear tooth and a joint of every two curved gear tooth grooves; and / or, the elastic grooving filtering structures comprise gear grooves formed in tooth grooves of the gears; the gear grooves comprise straight gear grooves formed in the tooth grooves symmetrically; and the gear tooth grooves and the gear grooves are filled with elastomer.

The invention discloses an intelligent filtering and driving device which comprises a filtering reducer assembly, a servo motor and an acceleration / speed / temperature sensor. The intelligent filtering and driving device integrates the filtering reducer assembly, the servo motor and the sensor, thus effectively simplifying the structure, reducing the volume and mass of the device, and improving the system precision. Through a controllable interface, a filtering gear can generate elastic deformation so as to effectively prevent nonlinear coupling vibration generated by influence of extreme working conditions and special environment, avoid the problems of reliability such as non-smooth work, even blockage and the like, guarantee a driving piece to work within the designed range of driving precision and bearing capacity, control the fluctuation generated by the motor due to the change from a high-speed small torque to a low-speed large torque, and reduce vibration noise and fatigue wear. The sensor and the driving part are integrated, so that the running state of the device can be detected in real time, failure signals can be extracted, and the failure can be estimated and predicted so as to guarantee the reliability of the device.

The invention discloses a circulated crushing medical glass garbage crushing plant. The circulated crushing medical glass garbage crushing plant comprises supporting legs, a crushing box is fixedly connected to the top ends of the supporting legs, a feeding opening and a discharging opening are formed in the upper surface and the lower surface of the crushing box correspondingly, a supporting plate is fixedly connected to the upper surface of the crushing box, a crushing motor is fixedly connected to the middle portion of the supporting plate, and an output shaft of the crushing motor is fixedly connected with a crushing rotating shaft through a coupler. By means of the circulated crushing medical glass garbage crushing plant, the effect of filtering and screening crushed glass fragments is achieved, not-thoroughly crushed glass fragments are conveyed to the interior of a circulation backflow barrel and flow back to the position between a crushing stator and a crushing rotor again for achieving the circulated crushing effect, the glass garbage crushing effect is effectively strengthened, the possibility that the top of the crushing stator is blocked by glass can be effectively reduced, and the problem that common glass garbage cannot be thoroughly crushed is effectively solved.

The invention relates to a condensation pipe and a filtering module using the same. The condensation pipe is a component for condensation of thin film distillation and comprises a hollow core body, a porous cladding layer and a condensation chamber, wherein the hollow core body is provided with a hollow compartment; the porous cladding layer has air permeability, but liquid cannot permeate the porous cladding layer; and the condensation chamber is formed by a space between the hollow core body and the porous cladding layer, and comprises an outlet communicated with the exterior and a plurality of fins which are radially arranged along the hollow core body and divide the condensation chamber into a plurality of condensation compartments.

The invention belongs to the field of polyvinyl chloride resin product recovery equipment, particularly relates to an efficient pelletizer for polyvinyl chloride resin recovery and aims at solving thetechnical problem of providing the efficient pelletizer for polyvinyl chloride resin recovery, capable of performing filtering treatment on wastes in the cooling and shaping process, automatically performing bagging after formation and pelleting of the polyvinyl chloride resin and thoroughly melting the resin. The efficient pelletizer for polyvinyl chloride resin recovery comprises a first bracket, a collection funnel, a pelleting tank, a cooling tank, a melting cylinder, a first motor and a fixed spine; the pelleting tank is fixedly connected to the top of the first bracket; and the collection funnel is fixedly connected to the bottom of the first bracket. The efficient pelletizer for polyvinyl chloride resin recovery achieves the effects that the filtering treatment can be performed onthe wastes in the cooling and shaping process, bagging can be automatically performed after formation and pelleting of the polyvinyl chloride resin, the resin is thoroughly molten, and the pelleting efficiency is high.

The invention discloses a voltage automatic regulation circuit for an electric vehicle. The voltage automatic regulation circuit comprises a voltage signal acquisition circuit, an amplifying and filtering circuit, a reference circuit and a regulation output circuit. The voltage signal acquisition circuit acquires the output voltage of a power supply when an electric vehicle is running. The amplifying and filtering circuit amplifies signals input by the voltage signal acquisition circuit by using operational amplifiers AR1 and AR2. Triodes Q1 and Q2, a capacitor C2, and a triode Q3 are used toform a composite circuit for filtering. The signals output by the amplifying and filtering circuit are divided into two paths, one of which controls the reference circuit to provide a base voltage fora power output port of the electric vehicle, and the other of which controls the regulation output circuit to regulate the voltage by using the principle of resistance voltage-dividing and controls the output voltage of the power output port. The stability of the output voltage of the power supply is ensured, and the change of the power supply is also ensured.

The invention discloses a high-voltage output stage integrated circuit. The integrated circuit comprises a filter circuit and a modulation circuit; the filter circuit is connected with a RC (Resistance-capacitance) circuit in series, so as to filter out medium-high frequency clutters; the voltage is inputted into the modulation circuit after the voltage is stabilized and the proportion is amplified by an operational amplifier; the modulation circuit modulates the amplitude and outputs stable voltage by a thyristor and a three-end voltage-regulator tube; negative electrodes of the thyristor D4 and the thyristor D6 are divided into two paths to receive the voltage of the filter circuit; one path is connected with a capacitor C4 in series, so as to filter out the direct-current voltage in the alternating voltage by using the characteristic of circulating the alternating current and blocking the direct current of the capacitor C4; the other end of the capacitor C4 is connected with a negative electrode of the thyristor D5 and a control electrode of a three-end silicon controlled rectifier Q1; the thyristor D5 protects the circuit; if the potential of the control electrode of the three-end silicon controlled rectifier Q1 is too high, the three-end silicon controlled rectifier Q1 is reversely conducted to be connected with the ground; if the potential is too low, the three-end silicon controlled rectifier Q1 is not triggered to be conducted; in the same way, a same circuit is connected in parallel; the circuit consists of the thyristor D6 and a thyristor D7, a capacitor C5 and a three-end silicon controlled rectifier Q2. The integrated circuit effectively stabilizes the output voltage of the high-voltage integrated circuit, filters the frequency, and effectively regulates the abnormal voltage.

The invention discloses an LED light source device. The LED light source device comprises a cushion plate, an LED driver and an LED light source plate; the LED light source plate and the LED driver are installed on the cushion plate, the overall LED light source device is formed, and overall installing and overall replacing are facilitated. An LED substrate is provided with a plurality of through holes in which magnets are embedded, the upper end face of the LED substrate is provided with a fixing piece made from magnetic metal, the fixing piece covers the through holes, and the fixing piece and the magnets are mutually attracted magnetically; and the cushion plate is made from magnetic metal, the LED substrate is attracted to the cushion plate through the magnets, and installation is convenient. A non-polar thin-film capacitor C2 quite small in capacity is adopted for a driving circuit built in the LED driver to replace an electrolytic capacitor, the thin-film capacitor C2 is the same as the electrolytic capacitor in filtering effect, the thin-film capacitor C2 is good in stability, extremely high in anti-interference capacity and high in reliability, and the service life of a power source is greatly prolonged.

The invention is a vehicle engine twin power, which is arranged between a wire of a high tension coil and a joint of a spark plug. The twin power is provided with a capacitance and an inductance which are arranged in series, corresponding two external ends of the capacitance and the inductance are both provided with conductive batons in an extending way, the external parts of the capacitance and the inductance are coated with an insulating bush which is internally injected with waterproof adhesive to coat the capacitance and the inductance, and two ends of the insulating bush are concavely provided with a caulking groove respectively; so the conductive baton at the external end of the capacitance is inserted into a core of the wire, while the conductive baton at the external end of the inductance is inserted into the joint of the spark plug, when the engine of the vehicle is started, the capacitance stores electric charge so as to reach the effect of voltage regulation and filtration, and the inductance can change power, namely discharges instantly and reinforces electricity, thus enhancing ignition effect, facilitating complete combustion of fuel without carbon deposit, and improving vehicle power.

The invention provides a time-frequency method, module and device for eliminating cross interference of signals and a storage device thereof. The time-frequency method for eliminating cross interference of signals comprises the following steps of: acquiring a target signal by a signal acquisition device; decomposing the target signal by a signal decomposition device so as to obtain application data; and processing the application data by an application data processing device so as to obtain a signal result. The module for eliminating cross interference of signals comprises a signal acquisition module, a signal decomposition module and an application data processing module; the device for eliminating cross interference of signals comprises a signal acquisition device, a signal decomposition device and an application data processing device; and the modules and the devices are jointly used for realizing the time-frequency method for eliminating cross interference of signals. The storage device is used for storing to-be-stored data, program codes and the like, and is used for realizing the time-frequency method for eliminating cross interference of signals. Through inhibiting cross terms in signals, a filter effect is achieved, so that time-frequency analysis for nonlinear and non-stationary signals is realized.

The invention discloses a slurry dispersing tank for waterborne paint. The slurry dispersing tank comprises a motor case, a top dispersing tank, a filter residue pipe and a filter residue box, whereina motor is fixed in the motor case, a drive shaft is mounted at the top end of the motor, a bottom dispersing tank is fixed on the upper surface of the motor case, a fan is mounted at one end of thedrive shaft, the top dispersing tank is inserted into the bottom dispersing tank, a seal gasket is mounted at the joint of the top dispersing tank and the bottom dispersing tank, an iron ring is fixedon the outer side of the joint of the top dispersing tank and the bottom dispersing tank through a screw, a water inlet pipe is mounted on one side of the upper surface of the top dispersing tank, adistribution pipe is mounted on the other side of the upper surface of the top dispersing tank, a filter screen is mounted in the distribution pipe, one side of the distribution pipe is communicated with the filter residue pipe, a baffle is fixed above one side of the top dispersing tank, and the filter residue box is inserted into the baffle. The slurry dispersing tank has the advantages that materials are filtered and screened during charging, and the dispersing tank can be dissembled and is convenient to clean.

The device includes voltage detection unit at net side, current detection unit at net side, device of picking-up fundamental current at load side, digital signal processor DSP and control system based on DSP, generator of pulse-width modulation, inverter and LC filter. Structure and control method of combining unsmoothed nonlinear control with observer of expanding state are utilized in the invention. Output, derivative and unknown internal and external interference are observed through observer of expanding state. Harmonic opposite phase compensation is converted to tracking of ideal sine signal. Wattless dynamic compensation is realized through voltage-controlled reactor so as to reduce capacity of inverter to minimum and play filtering action. The invention integrates active filtering, passive filtering and wattless dynamic compensation.

The invention relates to an ozone generation system with an oil, dust and water removal function. The system mainly comprises an air compressor, an air filter and an ozone generator. Due to the structural design of the air filter, air output by the air compressor produces multiple flows at different flow velocities in the air filter after entering the air filter, water, oil and dust particles in the air can be separated effectively, air almost containing no water, oil or dust particles is obtained by filtering to serve as an air source required for generation by the ozone generator, and the purposes of enhancing the quality of ozone produced by the ozone generation system and prolonging the service life of the ozone generator in the ozone generation system can be achieved really.

The invention discloses an LED light protection lamp with a built-in driver. The LED light protection lamp with the built-in driver comprises a bottom shell, a face cover, an LED light source assembly and the LED driver; the LED light source assembly is installed in a light source installing groove; the LED driver is installed in a driver installing groove; the LED driver and the LED light source assembly are independently installed, and replacing and maintaining of the LED driver are facilitated; a non-polar thin-film capacitor C2 quite small in capacity is adopted for a driving circuit in the LED driver to replace an electrolytic capacitor, the thin-film capacitor C2 is the same as the electrolytic capacitor in filtering effect, the thin-film capacitor C2 is good in stability, extremely high in anti-interference capacity and high in reliability, and the service life of a power source is greatly prolonged. The LED light source assembly comprises an SMD light source and a light reflecting piece which is provided with a plurality of light reflecting cups corresponding to LED chips one to one; and each light reflecting cup performs independent light distribution for each LED chip, the light outgoing efficiency is improved, and light spots are made more uniform.

The invention provides high-efficiency energy-saving dust collection equipment which is characterized in that water vapor subjected to dust collection by wet dust collection equipment is led into second-stage dust collection equipment for further filtering; the gas pressure at an exhaust passage of first-stage dust collection equipment is less than the gas pressure at an inlet passage of the second-stage dust collection equipment by the action of blower compression; gas pre-filtered by the first-stage dust collection equipment is liquefied into mist at the inlet passage of the second-stage dust collection equipment, and then flows through a dimister in the second-stage dust collection equipment for further filtering. The water vapor can be liquefied into mist under a pressurization condition by taking a residual fine dust impurity as a condensation nucleus, the mist flows though the dimister in the second-stage dust collection equipment, the dimister gathers the fine mist together to become a liquid water drop, the impurity flows out of a second liquid outlet along with the liquid water drop, and filtered clean gas is discharged from a gas outlet, so that a further filtering effect is achieved.

The invention relates to the technical field of air purification, and discloses a generator capable of generating energy ions. The generator comprises a cylinder body, a ventilation groove and a purification mechanism, wherein a fixing ring is fixedly mounted between the upper portion of the cylinder body and the purification mechanism, and the purification mechanism comprises an air outlet cylinder. According to the invention, by placing a generator body in a mounting groove, the lower end of the generator body makes contact with a supporting plate, then the supporting plate is extruded, the supporting plate moves downwards in the mounting groove so as to reserve enough space for placing the generator body into the mounting groove, at the moment, the upper end of the generator body can push an adsorption disc to move upwards, the adsorption disc moves upwards in the mounting groove, at the moment, an adjusting handle is in an open state, then a rotating wheel is adjusted through the adjusting handle, the rotating wheel pulls a pull rod to drive the adsorption disc, a sliding plate can be pulled downwards, and the supporting plate at the lower end is extruded while an adsorption bag has adsorption force, so that the fixing effect is achieved.

The invention discloses an analog signal control circuit comprising a filter circuit and a rectifier circuit, wherein the filter circuit is connected with an RC circuit in series to filter high frequency clutter and input the high frequency clutter to the rectifier circuit after voltage stabilization and scaling up of an operational amplifier, and the rectifier circuit outputs a stable analog signal by using a thyristor and a triode-thyristor rectifier; the cathodes of thyristors D2 and D5 receive the analog signal of the filter circuit in two paths, one path is connected with a capacitor C2 in series for filtering a DC analog signal in the AC analog signal by using the character of AC passing and DC isolating of the capacitor C2, wherein the thyristor D3 protects the circuit, the level of the control electrode of the triode-thyristor Q1 is too high to be reversely conducted and grounded, and if the level of the control electrode of the triode-thyristor Q1 is too low, the triode-thyristor Q1 is triggered and conducted, similarly, the same circuit connected in parallel achieves the rectifying effect through thyristors D5 and D6, a capacitor C3 and a triode-thyristor Q2, therefore the stabilization and filtering of the output analog signal of the high-voltage integrated circuit are effectively solved, and the abnormal analog signal can be effectively regulated and controlled.

The invention relates to the technical field of building crushing, and discloses waste building crushing equipment based on environmental protection. The equipment comprises a crushing machine body, a conveying, pushing and crushing mechanism is arranged in the crushing machine body, a transition storage box is welded to the position, located on the left side of the conveying, pushing and crushing mechanism, of the crushing machine body, a vibration auxiliary discharging mechanism is arranged on the inner wall of the machine body, and a crushing roller is fixedly installed at the position, located above the vibration auxiliary discharging mechanism, of the machine body. According to the waste building crushing equipment based on environmental protection, the effect of filtering and screening waste crushed by the crushing roller is achieved through mutual operation of internal structures of the conveying, pushing and crushing mechanism and the vibration auxiliary discharging mechanism, and the filtered waste is collected and transported in a centralized mode through vibration; and waste materials which do not meet the requirements are secondarily crushed in a pushing mode, the effect that the filtered waste materials are conveyed in time to be secondarily crushed is achieved, and the overall crushing and filtering efficiency is improved.

The invention discloses a voltage automatic regulation circuit for an electric vehicle. The voltage automatic regulation circuit comprises a voltage signal acquisition circuit, an amplifying and filtering circuit, a reference circuit and a regulation output circuit. The voltage signal acquisition circuit acquires the output voltage of a power supply when an electric vehicle is running. The amplifying and filtering circuit amplifies signals input by the voltage signal acquisition circuit by using operational amplifiers AR1 and AR2. Triodes Q1 and Q2, a capacitor C2, and a triode Q3 are used toform a composite circuit for filtering. The signals output by the amplifying and filtering circuit are divided into two paths, one of which controls the reference circuit to provide a base voltage fora power output port of the electric vehicle, and the other of which controls the regulation output circuit to regulate the voltage by using the principle of resistance voltage-dividing and controls the output voltage of the power output port. The stability of the output voltage of the power supply is ensured, and the change of the power supply is also ensured.

The invention provides a message filtering method and device and electronic equipment, and the method comprises the steps: receiving a message; Splitting a sequence corresponding to the message identifier of the message into a first sequence and a second sequence; Inquiring a truth table corresponding to the first sequence to obtain a value corresponding to the first sequence, and inquiring a truth table corresponding to the second sequence to obtain a value corresponding to the second sequence; And carrying out bitwise calculation on the value corresponding to the first sequence and the valuecorresponding to the second sequence, and if the bitwise calculation result is equal to the second sequence, processing the message. According to the message processing method and device, whether thereceived message is processed or not can be rapidly determined according to the message ID, so that the effect of software filtering can be achieved, hardware filtering is not needed, and the filtering efficiency is improved.

The invention relates to the field of sewage treatment and provides a livestock-poultry slaughter house sewage treating and deodorizing device which comprises a box, a water inlet, top maintenance ports, middle delivery pipes, a water pump, a clear water storage tank and water outlets. The bottom end inside the box is fixedly connected with two layers of netty settling plates which are symmetric with each other, diamond-shaped holes penetrate the surface of each netty settling plate, the left side and the right side inside the box are fixedly connected with two layers of retaining plates in mutual symmetry, and two diversion pipes fixedly penetrate the tops of the retaining plates and are arranged at the top of the retaining plate on the left side inside the box. When a user uses the device, effect of settling dirt and impurities in sewage is realized through the netty settling plates, so that effect of effectively deodorizing the sewage by the device is realized; effects of last purification and tiny substance adsorption of treated sewage are realized through an activated carbon layer.

The invention discloses a method for quickly extracting star points from star images. The method includes: according to a clustering concept, adopting part of star point pixels for coarse positioning of star points so as to realize rough estimation on center coordinates of star point dispersion regions; taking the center coordinates of the star point dispersion regions as seed points to automatically screen star point pixels according to a seed point area region growing method; according to characteristics of star point energy distribution, correcting gray values of the star point pixels; adopting a centroid calculation formula for precision positioning of the star points. Since star point extraction operations are centered in local ranges of the star point dispersion regions by means of coarse positioning of the star points, start point extraction speed can be increased; correction of the gray values of the start point pixels is simple and feasible, and image filtering effects can be achieved while more algorithm time and cost are saved as compared with those of image filtering.

The invention discloses a filterable nozzle structure for a household ice cream machine, which comprises a main body of the ice cream machine. A material tank cover is installed in the center of the top of the ice cream main machine, an ice cream material tank is arranged at the bottom of the material tank cover, and a puffing nozzle is arranged on one side of the material tank cover. One side of the ice cream host is provided with a control panel, the bottom of the control panel is provided with an ice cream control valve, one side of the ice cream control valve is provided with a connecting cover, and the inner side of the connecting cover is provided with a discharge sealing ring. This invention changes the nozzle structure of the traditional household ice cream machine, and can process the larger ice cubes or hard objects inside through the internal filtering processing device. The movable rotating shaft and cleaning nozzle can spray and clean the inner tank after each use. The equipment strengthens the internal sealing structure, effectively prevents the internal ice cream from leaking, and improves the performance of the equipment.