661results about How to "Improve shortcomings" patented technology

A method for detecting the lane departure of a vehicle includes an image recognition process and a deviation estimation process. The image recognition process includes the following steps: an image capturing step for capturing image frame data by using an image capturing unit; and a lane line recognition for analyzing the image frame data for determining the lane lines. By using a quadratic curve fitting equation, a plurality of lane line being detected so as to establish a road geometry estimation model. The road geometry estimation model is inputted into the deviation estimation process to detect the lane departure of the vehicle so as to alert the driver. Furthermore, an apparatus for detecting the deviation of the vehicle, comprising: an image capturing unit, a processing unit and a signal output unit.

A radial core type double rotor brushless direct-current motor is provided in which a double rotor structure is employed with inner and outer rotors which are doubly disposed and thus a stator core is completely divided. The motor includes a rotational shaft which is rotatably mounted on a housing of an apparatus, cylindrical inner and outer yokes which are rotatably mounted on the center of the housing, inner and outer rotors including a number of magnets which are mounted with the opposing polarities on the outer surface of the inner yoke and the inner surface of the outer yoke, and a number of cores assemblies which are installed between the inner and outer rotors in which a number of coils are wound around a number of division type cores, respectively.

The present invention relates to an electrically conductive metal composite embroidery yarn and embroidered circuit using thereof which may be applicable to smart textiles. More particularly, this invention relates to an electrically conductive metal composite embroidery yarn and embroidered circuit for smart textiles which can be used as power supply and signal transmission lines. The present invention provides an embroidered circuit which consists of a metal composite embroidery yarn and a dielectric fabric substrate, wherein the electrically conductive metal composite embroidery yarn is embroidered on the dielectric fabric substrate to form a circuit.

A synchronous moving double-axis hinge comprises a support member, a first transmitting assembly and a second transmitting assembly mounted onto the support member, and a transmission element installed on the support member. The first transmitting assembly includes a first transmission shaft and a first helical gear. The second transmitting assembly includes a second transmission shaft and a second helical gear. The transmission element includes a hinge pin and a driven helical gear. The driven helical gear has a first engaging zone to engage with the first helical gear and a second engaging zone to engage with the second helical gear. The hinge pin has a third extension axis crossing with a first extension axis of the first transmission shaft and a second extension axis of the second transmission shaft. Thus the crossed helical gears can effectively amplify the contact among the gear teeth to make transmission steadier.

The invention provides an imaging component for a projection system, which comprises an extended camera lens device which can be connected with an image outlet of the body of the projection system viaa rotating mechanism; and by rotating the rotating mechanism, the projection system can alternatively project images onto screens in two directions that are perpendicular to each other by the extended camera lens device, respectively, wherein, the images projected in the two directions perpendicular to each other meet the image ratio of reciprocal.

The present invention involves a processing method of semi-worsted flax blended yarn, and it belongs to flax blended yarn technical field. The counts of the semi-worsted flax blended yarn is 30-85 Nm / 2D, the raw materials consists of flax 10-60 and other fiber 40-90; degelatinizing, dyeing and preserving flax, pretreating other fiber, then putting together wool, blowing cotton, carding and drawing, then prespinning and shirting, last the products are prepared after cheese winding, twisting and double twisting processes. The invention combines the 'straight' of flax fiber and the 'softness' of other fibers effectively; the prepared semi-worsted flax blended yarn has many advantages of good textile strands and less granulite, it is suitable for the face fabric of thin summer inner wear and coat.

A three-dimensional positioning method includes establishing the geometric model of optical and radar sensors, obtaining rational function conversion coefficient, refining the rational function model and positioning the three-dimensional coordinates. Most of the radar satellite companies and part of the optical satellite only provide satellite ephemeris data, rather than the rational function model. Therefore, it is necessary to obtain the rational polynomial coefficients from the geometric model of optical and radar sensors; followed by refining the rational function model by the ground control points, so that object image space intersection is more serious; and then followed by measuring the conjugate point on the optical and radar images. Finally, the observation equation is established by the rational function model to solve the three-dimensional coordinates. It is obvious from the above results that the integration of optical and radar images does achieve the three-dimensional positioning.

The invention discloses an electronic product volume regulating method and a device thereof. The method comprises the following steps: the volume value of the external environment volume is obtained; the volume value of the environment volume is compared with a first preset threshold, so as to generate a first comparison result; when the first comparison result indicates that the volume value of the environment volume is smaller than the first preset threshold, a first volume regulating mode is used for regulating the volume; when the first comparison result indicates that the volume value of the environment volume is larger than the first preset threshold, a second volume regulating mode is used for regulating the volume; and the first volume regulating mode is different from the second volume regulating mode. According to the volume status of the external environment, three volume regulating modes such as a silent regulating mode, a normal regulating mode and a noisy regulating mode can be set. The method can ensure that the output volume has nonlinear variation according to the volume of the surrounding environment.

To achieve a station-side apparatus of a wavelength multiplexing PON system, which is capable of saving the wavelength resource through automatically carrying out allotment of the wavelength and the network address to reduce the complicated work for the setting, and through dynamically allotting the wavelength without fixing it in advance. It is a station-side apparatus (OLT) of a wavelength multiplexing PON system that comprises a plurality of in-home apparatuses (ONUs). The station-side apparatus is connected to the in-home apparatuses via transmission paths including an optical multiplexing distributor, and executes allotment of the wavelength in response to wavelength allotment requests from the in-home apparatuses. The station-side apparatus comprises a wavelength / network address allotting device that is provided with a DHCP server in advance, which dynamically allots wavelength and network address to the in-home apparatus in response to the wavelength allotment request from the in-home apparatus.

The invention provides a design method for a sliding mode disturbance observer used for servo system control, and aims at the friction interference problem in low speed of a servo system and considers the error and uncertainty problem of system modeling. A common DC motor model is used, and a disturbance observer and sliding model variable structure control are combined so that the sliding mode disturbance observer is designed. Firstly the size of the friction torque is observed by using the disturbance observer, and then a sliding mode controller is designed according to the obtained friction torque. The switching item gain of the sliding mode controller can be reduced through observation of friction torque so that the buffeting phenomenon can be reduced. Suppression of the low speed servo system for dead zone, creeping, self-oscillation and other nonlinear phenomena can be realized through the sliding mode disturbance observer so that the requirements for the modeling precision can be reduced and the method has great robustness.

A radial core type double rotor brushless direct-current motor is provided in which a double rotor structure is employed with inner and outer rotors which are doubly disposed and thus a stator core is completely divided. The motor includes a rotational shaft which is rotatably mounted on a housing of an apparatus, cylindrical inner and outer yokes which are rotatably mounted on the center of the housing, inner and outer rotors including a number of magnets which are mounted with the opposing polarities on the outer surface of the inner yoke and the inner surface of the outer yoke, and a number of cores assemblies which are installed between the inner and outer rotors in which a number of coils are wound around a number of division type cores, respectively.

The present invention relates to a flame-resistant and heat-resistant copper clad laminate preparation method, which comprises: adopting nanometer silica foam, dodecyl benzenesulfonic acid, bismuth nitrate pentahydrate, methyl trichlorosilane and polyoxyethylene sorbitan monooleate as a raw materials to obtain a filler; adopting DOPO, a bisphenol A cyanate ester monomer, a phenol compound, a m-nitrobenzene sulfonic acid pyridine salt, 2,3-epoxy cyclopentyl cyclopentyl ether and dimethyl phosphonate as raw materials to obtain a resin prepolymer; adding the filler to o-phthalic acid diglycidyl este to obtain an active filler; mixing the resin prepolymer and an indole compound, and then adding the active filler and isomeric undecanol polyoxyethylene ether phosphate potassium salt to obtain a composite system; and carrying out hot pressing molding on the composite system, a reinforced material and metal foil to obtain the flame-resistant and heat-resistant copper clad laminate, wherein the flame-resistant and heat-resistant copper clad laminate has characteristics of excellent flame retardant property and excellent heat resistance, and meets the development applications of the flame-resistant and heat-resistant copper clad laminate.

A tote for carrying items such as tools includes a center panel around which a bucket-type receptacle is located. Outer walls of the receptacle are integral with a bottom, which are integral with center panel walls that are attached to the center panel. The outer walls define an open top. The center panel extends to the open top and terminates in an ergonomic handle. A tool tote defined by a receptacle includes a bottom and an outer wall extending from the bottom. A center panel that extends through the bottom, divides the receptacle into two compartments, and terminates in a handle proximate the open top. A footing on the center portion prevents the panel from being pulled through the receptacle. An open-topped tool tote has an open top, a center panel that divides the tote in a longitudinal direction, and a handle at the upper edge of the center panel.

A power supply device for a door handle is provided. A rotation shaft of the door handle is provided with a drive gear, a first speed-change gear, a second speed-change gear, and a generator. Two end of a rotation shaft of the generator are respectively provided with a gravity wheel and a freewheel. The freewheel has one-way teeth, a link plate with link teeth and a third speed-change gear. The third speed-change gear meshes with the second speed-change gear. When the door handle is turned to an angle, the drive gear, the first and second speed-change gears, the third speed-change gear and the freewheel are driven to turn so that the rotation shaft of the generator is turned to generate power for an electric lock (such as a fingerprint lock, a coded lock, a chip induction lock).

The invention belongs to the field of vinyl acetate synthesized by a fixed bed type acetylene gas phase method, in particular to a catalyst for preparing vinyl acetate by a rare earth metal-bearing acetylene method as well as a preparation method thereof, and the rare earth metal-bearing catalyst is applied to the synthesis of vinyl acetate which takes acetic acid and acetylene as raw materials by adopting the fixed bed type gas phase method. The zinc acetate and lanthanum acetate are dissolved with methanol, then active carbon is dipped in the methanol solution containing the zinc acetate and lanthanum acetate under agitation, the zinc acetate and lanthanum acetate are loaded on the active carbon through an impregnation method, and the catalyst is obtained after drying. The content of the loaded active component zinc acetate is 10 to 40wt% of the total weight of catalyst, and the content of the loaded active component lanthanum acetate is 0.1 to 5wt% of the total weight of catalyst. The catalyst takes the active carbon as a carrier, and adopts two metallic salts of the loaded zinc acetate and the lanthanum acetate, and the catalyst containing lanthanum acetate has the advantage of low initial temperature of reaction compared with the usual active carbon zinc acetate catalyst.

The invention relates to a thermal error modeling method based on gray linear regression. The method comprises the following steps that first, on the basis of a gray thermal error model, a linear equation is introduced, a gray linear regression combination model is constructed; second, a least square method is used for solving a gray linear regression combination model parameter; third, the gray linear regression model is used for thermal error prediction; fourth, a BP nerve network is used for amending combination model residual errors, and prediction accuracy is improved. According to the method, the shortcoming that a linear regression model does not have exponential growth and cannot describe linear changing trend easily, and a gray thermal error model does not have a linear factor can be overcome, good capacity for solving linear and nonlinear problems is achieved, good effect is achieved for thermal error prediction on an accurate horizontal type machining center is achieved, linear factors and nonlinear factors of thermal error data are considered, the shortcoming of an original single gray model is overcome, and an accurate thermal error prediction value and high fitting degree are acquired.

The invention discloses a fabricated type building intelligent hoisting method and a system based on machine vision. The fabricated type building intelligent hoisting system based on the machine vision comprises an image gathering module, an image processing and decision module and a device control module, the image processing and decision module and the image gathering module are communicated, and the device control module and the image processing and decision module are communicated. According to the fabricated type building intelligent hoisting method and the system based on the machine vision, the machine vision replaces the reliance on human vision in the hoisting process of the fabricated type building. Obstacle recognition is conducted in a complex fabricated scene through a deep learning model of a convolutional neural network and a type-II fuzzy neural network by using the machine vision, prefabrication hoisting path planning is conducted by using ant colony algorithm, and consequently, the movement of equipment on the scene is controlled according to the decision result. The fabricated type building intelligent hoisting method and the system based on the machine vision analyze and obtain the best scheme from the complex scene by using the camera instead of the human eye, can better plan the prefabrication hoisting path, greatly improve the hoisting efficiency and accuracy of the fabricated type building, realize the intelligent hoisting of the fabricated type building, and improve the shortcomings of artificial hoisting.

There is provided a suspension capable of suppressing deformation of a magnetic head slider mounted thereon. At the same time, there are provided high-quality head gimbal assembly and hard disk drive capable of achieving stable writing and reading of data. It is a suspension comprising a tongue face for mounting a magnetic head slider, wherein a deformation-difference absorbing device is provided on the tongue face for absorbing a difference between thermal deformations of the tongue face and the magnetic head slider.

The present application provides an electronic device comprising an operational circuit, which is temporarily closed when the electronic device is in a sleep mode; a display screen having a light emitting area; a plurality of fingerprint sensing pixel units located in the light emitting area; and a fingerprint identification circuit coupled to the plurality of fingerprint sensing pixel units. The display screen emits light in the light emitting area when the electronic device is in the sleep mode, and the display screen does not emit light in addition to the light emitting area.

Devices and methods for measuring prothrombin time and hematocrit (HCT%) by analyzing the change in reactance in a sample are presented. A diagnostic device for measuring HCT and prothrombin time of a fluid includes a relative electrode-type sensor device and a blood test card assembly including one or more pairs of electrodes, wherein alternating current (AC) provided by the sensor device is used to measure and calculate prothrombin time and HCT of blood test using the reactance analysis.

The invention discloses computer wireless ancillary equipment with the slid fingerprint sensing chip, which comprises the following parts: an ancillary equipment receiving modular, an ancillary equipment body and a slid fingerprint sensing chip, wherein the ancillary equipment receiving modular is connected with a host system by the wire mode, the ancillary equipment body is connected with the ancillary equipment receiving modular by the wireless mode, the slid fingerprint sensing chip is equipped with the ancillary equipment body for sensing the slid by a plurality of fragment fingerprint images of a finger and acquiring a plurality of fragment fingerprint simulating signals, a plurality of underlap fragment images are produced by dealing with a plurality of fragment fingerprint simulating signals, the fragment images are outputted to the ancillary equipment receiving modular by a wireless launcher and a wireless acceptor. The host system combines the fragment images one by one to a perfect fingerprint image and proceeds the comparison action of the fingerprint, the successful comparison can' t cause more than an application program in the host system.

The invention relates to a manufacture method of a ship rectification duct, which comprises the following steps: (1) manufacturing a bow fetal board and processing a first breach and manufacturing a bow fetal board and processing a second breach which is located as a shaped grid; (2) arranging the base level of the shaped grid and fixing the lowest point and ensuring the level; (3) assembling an outside casing plate and rolling a semi-circled table for the outside casing plate; (4) providing the outside casing plates on the internal frames of the first breach and the second breach; (5) ruling in the outside casing plate and installing a knee plate distributed horizontally and vertically; (6) installing an inner casing composition plate on the knee plate and welding the composition plate into inner casing plate and completing the manufacture of the rectification duct after checking and adjusting. The manufacture method of the rectification duct of the invention can easily control the deformation of the whole manufacture method of the rectification duct, ensures the accuracy of inner and outer linearity of the rectification duct, improves the production efficiency, saves time and speeds up the construction of the whole ship.