184results about How to "Sensitive adjustment" patented technology

An improved focusing coupler device for coupling the image capturing portion of an endoscope to a video camera is disclosed. The coupler device includes a housing having an elongate internal chamber defining an optical pathway for connecting the optical image paths of the endoscope and the camera, first and second windows closing off the opposite ends of the chamber, a lens transport assembly disposed in the chamber for relative movement between the ends of the chamber, the lens transport assembly comprising a lens carrier that defines a longitudinal series of rack gear teeth and is movable between the opposite ends of the chamber, and at least one focusing lens mounted to the lens carrier in coaxial alignment with the longitudinal axis of the chamber. The housing also includes a cavity containing a drive device and a passageway communicating with the midsection of the chamber and the distal end of the cavity chamber, and gear means for connecting the rack gear teeth to the drive device so as to translate rotational movement of the drive shaft in the cavity through the passageway to the rack gear teeth and thereby to selectively longitudinally move the lens transport assembly in the chamber.

The invention discloses an edge detection method based on fractional-order signal processing, aiming at solving edge detection which is a traditional trouble in the pattern recognition field. The method is a novel algorithm which can conduct gradient operation to all target pixel points in an image by using the fractional-order signal processing to obtain an edge, and comprises that a gray-level matrix is generated from any image, the gradient operation is conducted respectively to each pixel point in the matrix by adopting detection operators to obtain the gradient amplitude of each pixel point, then non-maximum value suppression is conducted to the gradient image and finally a double-threshold method is adopted for judging whether the target pixel points are edge points and are connected with the edge or not. The invention omits the process of smooth filtering preprocessing conducted to the image and utilizes a novel derivative algorithm based on the fractional-order signal processing to conduct the gradient operation. Fractional integrals in the algorithm can suppress the interference introduced during derivation. The entire method has the advantages that the signal-to-noise ratio is good, the edge positioning is accurate and the false edge can be effectively suppressed. The algorithm can be used in the fields such as the automatic target recognition and the like.

A sieve (166) for a combine harvester (100) cleaning device (146) comprises a frame (10), in which a plurality of similar transversely extending plates (12) are mounted for angular adjustment about respective transverse axes defined by axles (20) that are equally spaced from each other in the longitudinal direction. The plates (12) are angled upwards and rearwards, with adjacent ones of the plates having forward sections of one overlapping rearward sections of the other. The axles (20) include cranks 14 that define adjusting elements, which are received for interacting with slots (16) provided in a longitudinally extending adjusting rod (18) that can be adjusted in its position in the longitudinal direction of the sieve (166), relative to the frame (10), so as to be able to adjust the angles of the plates (12) around their axles (20). The slots (16) are shaped and arranged on the adjusting rod (16) in such a way that at least one plate (12) has an angle different from another plate (12).

The invention discloses a sensitivity adjustability-based speech emotion recognition method and system. According to the method and system, the input speech signals of a user are received; voice recognition software is utilized to perform text recognition on the speech signals, a speech signal feature vector and a text feature vector are established; the speech signal feature vector and the text feature vector are respectively inputted into a speech emotion recognition model and a text emotion recognition model for performing recognition, so that the class probabilities of the speech corresponding to four emotions are determined; a user can adjust the weighting values of judgment on the four emotions; and a decision-making layer fuses four emotion perception sensitivity-weighted emotion probabilities so as to obtain a final recognition result, and emotion sensitivity adjustable emotion recognition is realized. With the method and system of the invention adopted, new solutions and application methods can be brought for human-computer interaction, emotion management and emotion calculation.

The invention provides a text information checking method and device and an electronic device for text information, which relate to the technical field of information processing and comprise the following steps: obtaining a text to be inquired; performing paragraph splitting processing on the text to be queried to obtain a plurality of splitting paragraphs of the text to be queried; hash functionprocessing is carried out on each split paragraph to obtain the characteristic fingerprint of the split paragraph; the feature fingerprints of the split segments are segmented to obtain a plurality offeature fingerprint fragments, each feature fingerprint fragment is matched with a preset feature fingerprint fragment in a corresponding feature fingerprint fragment library, and text information checking results are determined according to the matching results. The method matches each feature fingerprint fragment with its corresponding feature fingerprint fragment library, The text informationchecking results can be obtained quickly, and the duplicate checking results of each split paragraph have good similarity performance, which alleviates the technical problems of the existing text information duplicate checking methods, such as slow retrieval speed and poor similarity performance of retrieval results.

The invention relates to a printing machine, in particular to a multiple color press unit type gravure press which overcomes the defects of each assembly structure in the traditional gravure press. The gravure press comprises a board gravure press drying box, a direct pressing type on-off pressure material storing mechanism, a gravure press automatic transversal template adjusting mechanism, a reversing gear box, a scraper trolley and a horizontal swinging roller mechanism. On the whole, through the series technical improvement on each assembly of the multiple color press unit type gravure press, the invention has more reasonable design for the whole machine, enhances the production efficiency, saves the materials, more importantly, enhances the printing quality and improves the product quality.

Process and winding machine for the continuous winding of a web of material onto a reel spool to form a reel. The process includes forming a winding nip between a peripheral zone of a reel drum the reel, guiding the material web over the peripheral zone of the reel drum, positioning the reel in a secondary zone, and displacing and pressing the reel drum against the reel in the secondary zone. In this manner, one of control and regulation of a linear force in the winding nip occurs through the displacement of the reel drum. Upon obtaining a completed reel having a desired reel diameter, the process includes moving the reel drum into a temporarily fixed position, introducing a new, empty reel spool into a primary zone, forming another winding nip between the new spool and the reel drum through a relative movement of the new reel spool with respect to the reel drum in the temporarily fixed position, cutting the material web, winding the material web onto the new reel spool to form a new reel, and removing the completed reel. The process also includes transferring the new reel spool from the primary zone to the secondary zone, releasing the reel drum from the temporarily fixed position, and displacing the reel drum for one of the control and regulation of the linear force in the winding nip between the reel drum and the new reel spool in the secondary zone. The winding machine includes a reel drum arranged to form a winding nip with the reel, a primary mount adapted to hold a new reel spool, wherein the primary mount is further adapted to displace the new reel spool along a first guide path substantially radially to the reel drum, and a secondary mount coupled to the reel spool. The machine also includes a pressure device coupled to the reel drum, which is adapted to move the reel drum at least substantially horizontally when the reel spool is in the secondary mount, and which is further adapted to at least temporarily fix a position of the reel drum when the new reel spool is in the primary mount.

The invention relates to the technology of electronic circuits and semiconductors, in particular to a programmable surge protection circuit and a production method thereof. The surge protection circuit is formed by two Metal-Oxide -Semiconductor Field Effect Transistors (MOSFETs) of the first conduction type, two MOSFETs of the second conduction type, two gate pole thyristors of the first conduction type and two gate pole thyristors of the second conduction type. On and off of the thyristors are mainly controlled by drain-source currents of the MOSFETs, and accordingly surge currents are released. The surge protection circuit and the production method thereof have the advantages that the surge protection circuit has fast response (ns level) and strong voltage and current impact bearing capacity, can achieve double-wire and bidirectional surge protection simultaneously and can adjust sensitiveness of protection devices for surge voltage as required.

The invention provides a control method of an oxygen therapy instrument. A pressure sensor is added in an air outlet of the oxygen therapy instrument to detect the respiratory conditions of a user, during inspiration of the user, oxygen is output by controlling a proportional valve, and during expiration of the user, oxygen output is closed. The control method of the oxygen therapy instrument hasthe advantages that under the situation that the user needs the same oxygen flow, the oxygen therapy instrument of the method reduces the power of oxygen production by 2 / 3, and then the noise of oxygen production and the size of the oxygen therapy instrument can also be correspondingly reduced; continuous oxygen delivery can cause dry injury of the mucous membrane in the local respiratory tract, and during expiration, oxygen output is stopped so that the breath of the patient can be more smooth; the breath state can be accurately judged, the control precision of the oxygen flow is high, the adjustment of the oxygen output amount is sensitive, the comfort of the oxygen inhalation is improved, and side effects are reduced; a blood oxygen detection module is added to detect the oxyhemoglobinsaturation of the user during use and monitor the treatment condition of the user in real time, and the oxygen flow is intelligently adjusted according to the oxyhemoglobin saturation to save energy under the best treatment effect.

The invention provides a composite second-order fractional order signal processing-based edge detection method which belongs to the conventional problem in the mode recognition field. The method is a new algorithm for solving an edge by performing gradient operation on all target pixel points in an image by using fractional order signal processing, and comprises the following steps of: generating a gray level matrix for any image; performing the gradient operation on each pixel point in the matrix by using a detection operator to obtain the gradient amplitude of each pixel point respectively; determining an edge position through an obtained zero-crossing image; and if the gradient amplitude of the target pixel point is greater than a threshold value, determining that the target pixel point is an edge point. By the method, smoothing filter preprocessing of the image is saved and the gradient operation is performed by using a fractional order signal processing-based novel composite derivation algorithm; fractional integral in the algorithm suppresses the interference introduced by a fractional differentiation process; and the method has the characteristics of good signal-to-noise ratio, accurate edge positioning and excellent suppression of false edges. The algorithm can be applied to the fields such as automatic target recognition and the like.

The present invention relates to the application of Zijing as one single ingredient new Chinese medicine for treating myopia. Zijing is prepared with full health eyeball of vertebrate ox, horse, donkey or mule. Biochemical analysis shows that Zijing contains several kinds of trace element, amino acids, vitamins, protein, enzymes, polypeptide, nucleotide and other matters, is the material basis for eyes of the said animal to metabolize, and contains the matters essential for treating myopia. Zijing has the functions of invigorating vital energy, nourishing blood, eliminating heat from liver, strengthening eyesight, etc. and thus excellent myopia treating effect.

The invention discloses a corner detection method based on a non-causal fractional gradient operator, which belongs to the technical field of image processing. According to the invention, non-causal fractional gradient operation of a gray-scale image to be detected is realized through the combination of cause-effect and anti-causal fractional integral and cause-effect and anti-causal fractional differential. The method comprises the steps that an image is read to generate a gray scale matrix f (x, y); non-causal fractional gradients Dx and Dy of f (x, y) in x and y directions are calculated; the product DxDy of the gradient direction is calculated; Gaussian kernel is used to filter DxDy; the corner point intensity is calculated; and non-maximum suppression is carried out to acquire an accurate image corner. According to the invention, the novel algorithm based on non-causal fractional gradient is used to carry out gradient and corner energy operation; the corner detection precision is improved; the method is suitable for the computer vision fields of image registration and matching, image fusion, target recognition and the like.

A warp knitting machine is equipped with at least one pattern guide bar (1) having the yarn guides (2), wherein the yarn guides are each connected to a motion control unit by an extension element (3). Further, the machine is so structured that the motion control unit has a driving device (4) at only one of ends of the pattern guide bar (1), the driving device has a drum (8), one of ends of the extension element (3) is fasten to the drum, and a return device (5) is positioned at only the other end of the pattern guide bar (1).

The invention discloses an operation control method of a high-voltage variable-frequency main coal flow intelligent conveying system. The high-voltage variable-frequency main coal flow intelligent conveying system comprises a torque detection system, a control system and a high-voltage variable-frequency transmission system, wherein the high-voltage variable-frequency transmission system comprisesa conveying belt driven by a plurality of variable-frequency motors; the torque detection system sends a torque sampling signal of the variable-frequency motors to the control system, the control system converts the torque sampling signal into torque data and estimates the coal amount loaded by the conveying belt at present according to the torque data, the high-voltage variable-frequency transmission system is controlled according to the torque data and / or the estimated coal amount, and the operation speed of the conveying belt is adjusted. According to the invention, the coal flow conveyingspeed is adjusted sensitively, the failure rate is low, the energy-saving effect of the system is good, and the operation cost of equipment is reduced.

The invention discloses a gas pressure boost metering device and particularly relates to a supercritical fluid pressure-boost generating and accurate metering device. The device consists of a filter, four stop valves, three solenoid valves, a pressure regulating valve, three pressure gauges, a gas booster pump, an exhaust valve, a safety valve, three pressure sensors, two supercritical fluid storage tanks, a pilot valve, an electronic pressure controller, a pneumatic control pressure regulating valve, a proportional valve, a bypass valve, an overflow valve, a control unit, a touch screen operation interface, and a pressure pipeline and a communication electric wire or cable which are connected with the components. The device has the advantages that generation and metering are integrated, and the booster pump is driven by gas and is automatically controlled to be switched on and off in a proportion-integration-differentiation (PID) mode; a metering system operates in a bypass backflow mode, and backflow gas is pressurized and recycled; and the fluid in the metering system always flows in a circulating mode, so that pressure jump caused by passage blocking is eliminated.

The invention provides a concrete spreader which is flexible, portable and convenient. The concrete spreader comprises a base, an upper supporting seat, an arm support assembly hinged with the upper supporting seat and a concrete conveying pipeline, wherein the arm support assembly comprises a master arm support and at least one section of slave arm support; the master arm support is hinged with the upper supporting seat; a lifting mechanism capable of lifting the master arm support in a vertical plane relative to the upper supporting seat is arranged between the master arm support and the upper supporting seat; the master arm support is hinged with all sections of slave arm supports sequentially; a lifting mechanism capable of rolling up and expanding two sections of slave arm supports or expanding and unfolding two sections of slave arm supports is arranged between every two sections of slave arm supports; the lifting mechanism between every two sections of slave arm supports comprises a crank connecting rod mechanism positioned on the opposite inner sides of the two sections of slave arm supports when the slave arm supports are folded; a plurality of sections of concrete conveying pipelines are provided and fixed relative to the sections of slave arm supports; and the sections of pipelines are connected with one another in a rotary closed manner. The concrete spreader has the beneficial effect that the whole structure is simple and stable; the concrete distribution position is quickly and sensitively adjusted; a connection mechanism among the arm supports is flexible and firm; and the space is saved; and the service life of the concrete spreader is long.

The invention discloses an image sharpening method based on non-causal fractional order subdifferential and belongs to the technical field of image processing. Non-causal fractional order subdifferential is performed on to-be-sharpened images by combining causal fractional order subdifferential with anti-causal fractional order subdifferential, the final amplitude frequency gain is adjusted by adjusting the value of differential order, resistance to noise and sensitivity to image detail information are further adjusted, then final non-causal fractional order subdifferential images are added to original to-be-sharpened images in a certain form, and final sharpened images are obtained. Differential operation is performed on the basis of the novel algorithm of non-causal fractional order subdifferential, noise can be effectively inhibited while the image detail information is enhanced, image details can be enhanced greatly while the effect of noise is inhibited, and the method can be widely applied to fields of image analysis, automatic target recognition and the like.

The apparatus has a pneumatic controller, which controls the pressure in a gas conduit (1) in dependence on the pressure in an air conduit (2). Provided downstream of the regulator is a mixing device (4), which has a venturi-like mixing chamber (7). Extending into the inlet opening of the mixing chamber (7) is a nozzle (8), which is connected to the air conduit (2). Defined between the nozzle (8) and the edge (9) of the inlet opening of the mixing chamber (7) is an annular gap (10), which is connected to the gas conduit (1). Also operating in the air conduit (2) is a conical member (11) which is actuated by a linear motor (12). The mixture is withdrawn from the mixing chamber (7) by a fan (5), whose speed is controllable, and fed to the combustion device. The adjusting motor (12) for the conical member (11) operates in dependence on a signal from a sensor, which detects changes in the gas quality, the air pressure and / or the combustion air temperature. The cross-section of the nozzle (8) connected to the air conduit (2) is blocked to a greater or lesser extent in dependence thereon in order to superimpose the sensor regulation on the pneumatic regulation.

The invention discloses a multi-position hole-type viscous damper, and belongs to the field of civil engineering vibration control. The viscous damper comprises piston rods, pistons, a cylinder, an end cover, and connecting parts. The piston is provided with a damping hole, and the pistons comprise a left piston and a right piston, wherein the left and right pistons are connected together through a bolt and gasket. A circular disc is clamped between the left piston and the right piston, and is provided with a throttling hole. The piston rods comprise a left piston rod and a right piston rod, wherein the left end of the left piston rod is connected with a left connecting part, and the right end of the left piston rod is disposed on the left piston in a nested manner. The internal center of the left piston rod is provided with a hole groove, and the interior of the hole groove is provided with a rotating shaft, wherein a sealing device is disposed between the rotating shaft and the hole groove. The left end of the rotating shaft is provided with an adjusting knob, and the right end of the rotating shaft is connected with the circular disc. The left end of the right piston rod is disposed on the right piston in a nested manner, and the right end of the right piston rod is free. According to the invention, the viscous damper carries out the adjustment of the level of a damping force in a mode of switching throttling holes with different diameters through rotating the circular disc, so as to meet the demands of different loads. The viscous damper is easy to machine, is flexible in damping force level adjustment, and is good in overall stability.

The invention discloses a fireproof door. The fireproof door comprises a door frame and a door leaf arranged in the door frame, wherein the door leaf comprises an inner door sheet, an outer door sheet and a fireproof box filled with liquid fire-proofing agents; the fireproof box is located between the inner door sheet and the outer door sheet and provided with nozzles capable of penetrating through the inner door sheet and the outer door sheet respectively; a spray pipe is connected to each nozzle, and the bottom end of each spray pipe is fixed into the fireproof box; a combustible gas alarm is arranged on the inner door sheet and comprises a circuit box, a hanging frame, a guiding frame and a control circuit, wherein the circuit box is used for containing circuit elements, the hanging frame and the guiding frame are arranged on the circuit box, and the control circuit is arranged in the circuit box; the control circuit comprises a transformer, a relay, a buzzer and a thyristor, wherein the transformer is connected with an alternating current source provided by a mains supply, and the relay, the buzzer and the thyristor are sequentially connected in series between the positive output end and the negative output end of the transformer; a gas sensitive element is arranged at the top end of the circuit box and connected with a control electrode of the thyristor; a water pump is connected to a normally open contact of the relay. The fireproof door can give a warning of fuel gas and has a good fireproof property.

A yarn feeding device (F) for knitting machines comprises a housing (1), a stationary storage body (4) having a cylindrical front end section (6) and a withdrawal rim (15) tapered in withdrawal direction R, a housing bracket (9) provided alongside the storage body, and a tension ring (T) which is axially adjustable in the housing bracket (9) by means of an adjustment mechanism (M) for co-action with the storage body (4) which co-action influences the yarn tension. The tension ring (T) has an outer ring body (27) and inwardly protruding fingers (28) with free finger ends (29) which follow each other in circumferential direction along a circle (K). The adjustment mechanism (M) is designed with an axial adjustment range for the tension ring (T) within which the tension ring (T) is adjustable at least between an individual yarn tension operative position (A) axially contacting the withdrawal rim (15) and a uniform yarn tension operative position (B) radially contacting the cylindrical front end section (6).

The invention relates to the field of cold-rolled strip steel electrostatic oiling processes, in particular to a cold-rolled strip steel electrostatic oiling chamber structure which optimizes oiling control precision, thereby improving the oiling quality. The cold-rolled strip steel electrostatic oiling chamber structure comprises an oiling chamber, an upper knife beam and a lower knife beam are arranged in the oiling chamber separately, a heating oil tank and a knife beam oil supply servo control system are arranged at the top of the oiling chamber, the knife beam oil supply servo control system communicates with the upper knife beam through an upper oil way, and the knife beam oil supply servo control system communicates with the lower knife beam through a lower oil way. In actual use, the oil quantity can be adjusted more sensitively, and thus the oil injection quantity can be flexibly adjusted according to actual oiling needs, and even thicknesses of strip steel surface oil films are guaranteed. In addition, because the heating oil tank is arranged, the oil pressure, the oil temperature and the liquid level of oil in the heating oil tank can be precisely controlled, and therefore the controllability of oil film coating is ensured. The cold-rolled strip steel electrostatic oiling chamber structure is especially suitable for strip steel oil film coating processes.

The invention discloses a tunnel illumination intelligent control method and device, a storage medium and a system, and the control method comprises the following steps of obtaining a tunnel brightness intelligent prediction model, wherein the brightness intelligent prediction model obtains the required brightness in a target tunnel section under different traffic volumes based on Bayesian networktraining; obtaining the actual traffic volume of a tunnel, and obtaining the actual demand brightness of the target tunnel section under the conditions of the actual traffic volume and the actual vehicle speed and according to the brightness intelligent prediction model; and sending an instruction for enabling an illumination device in the target tunnel section to reach the actual required brightness. The brightness in the tunnel is adjusted at any time according to the sensor information through an illumination control system, and a large amount of electric energy is saved.

The present invention relates to eye peptide injection as one medicine preparation for treating myopia, and the eye peptide injection is water solution of Zijing through purification and sterilization. Zijing is prepared with full health eyeball of vertebrate ox, horse, donkey or mule. Biochemical analysis shows that Zijing contains several kinds of trace element, amino acids, vitamins, protein, enzymes, polypeptide, nucleotide and other matters, is the material basis for eyes of the said animal to metabolize, and contains the matters essential for treating myopia. Zijing has the functions of invigorating vital energy, nourishing blood, eliminating heat from liver, strengthening eyesight, etc. and thus excellent myopia treating effect.