202results about How to "Not easily disturbed" patented technology

The invention relates to an automatic guided vehicle based on magnetic-nail map navigation. The automatic guided vehicle is composed of a vehicle-mounted sensor, an actuator, and a controller. The vehicle-mounted sensor consists of a magnetic ruler, an inertial navigation module, a speedometer, and an RFID reader. The actuator includes a steering system, a braking system and a power system. The guided vehicle is driven on a lane with a magnetic nail; the coordinate of the magnetic nail on the road is known and is stored into the controller; the controller uses the magnetic ruler to measure relative positions of the magnetic nail and the vehicle body on the lane, thereby realizing high-precision positioning of the vehicle. With the inertial navigation module and the speedometer, data fusion is carried out by combining the magnetic nail coordinate information; the controller can calculate an absolute position of the vehicle precisely and continuously; and the actuator is used for realizing high-precision positioning and autonomous driving. According to the invention, the automatic guided vehicle is suitable for various automatic workshops and logistics warehouses. With the vehicle, the manpower can be reduced effectively; and the workshop operation efficiency is improved. The automatic guided vehicle has advantages of high positioning accuracy, excellent control performance, low cost, high reliability, and low maintenance cost.

The invention discloses a physiological parameter monitoring method, a physiological parameter monitoring device and a hand-held device. The method includes the following steps that: a current face image is acquired; a cheek part image in the face image is extracted; the mean values of the green channels of the cheek part image are calculated, so that a mean value sequence can be obtained; sliding mean value filtering is performed on the mean value sequence, a physiological change curve is obtained by adjusting the filtering interval of the sliding mean value filtering; and feature extraction is performed on the physiological change curve, so that physiological parameters can be obtained. According to the physiological parameter monitoring method, different physiological parameter curves can be obtained through different filtering intervals; and the curves can be correspondingly processed, so that a plurality of physiological parameter values can be obtained. The invention also discloses a handheld device using the method. The method, device and the hand-held device of the invention have the advantages of low computation amount, high accuracy and low hardware requirements.

The invention relates to a device and method for cleaning, activating or pre-treating workpieces by blasting a carbon dioxide snow which is produced from pressurised CO2-containing fluids and at least one type of carrying compressed gas and is accelerated by means of a discharge nozzle (14), wherein a two-phase carbon dioxide mixture of a carbon dioxide gas and carbon dioxide particles is produced in an agglomeration chamber (8) by agglomerating and compressing carbon dioxide snow crystals which are radially added to the carrying gas in a multistage mixing chamber (10, 11, 12) comprising a central jet pipe (4), around which the carbon dioxide mixture circulates and which is used for supplying said carrying gas in such a manner that a high-energy turbulent gas flow for processing a workpiece is obtainable.

The invention provides an automatic parking device of a large vehicle based on a magnetic nail; and the device comprises a vehicle-mounted sensor, an actuator, a controller and a magnetic nail lane, wherein the vehicle-mounted sensor comprises a magnetic ruler, an inertial navigation module and a speedometer. When the vehicle enters a station, the vehicle is driven on the magnetic nail lane; the controller measures the position of the magnetic nail on the magnetic nail lane corresponding to a vehicle body through the magnetic ruler to judge a transverse vehicle error, and detects the magnetic pole change of the magnetic nail to judge the parking position; the inertia navigation module and the speedometer are used for combining the information of the magnetic nail to fuse data; the controller calculates the longitudinal driving distance and the transverse error of the vehicle; and the vehicle navigation control is realized through controlling the steering system and a braking system to achieve the purpose of high-precision station parking. The device is suitable for such various places needing high-precision parking of large vehicles as BRT bus rapid transits, industrial factory buildings and wharfs, can effectively reduce manmade wrong operations, improves the success rate and the efficiency, and has such advantages as low cost and high reliability.

The invention provides a circular leaky waveguide cable which comprises a circular waveguide wall and a metal wire and is characterized in that the metal wire is additionally arranged on a circular waveguide inner cavity along the axis direction of the circular waveguide inner cavity, and a plurality of gaps are uniformly arranged on the circular waveguide wall along the axis direction at intervals to form a gap array. The invention can be applied to high-frequency, microwave and high-power systems and realize that the polarized surface of a transmission wave field structure is not deflected with distance.

Provided is a judgment method for motion state and footwear. The judgment method comprises following steps of: step S10: acquiring pressure amplitude of forefeet and rear feet within the period T, obtaining effective step numbers by calculating steps based on pressure amplitude, respectively defining the numbers as D1 and D3, effectively calculating average value of pressure amplitude and respectively defining the value as M1 and M3, and effectively calculating average value of time of duration for pressure amplitude and respectively defining the value as t1 and t3; step 20: making comparisons among D1, D3, M1, M3, t1, t3 and multiple different preset value in order to determine and acquire motion state. The above judgment method for motion state is less susceptible to interference of other unrelated motion so that high judgment accuracy is obtained. Low algorithm complexity is adopted by the above judgment method for motion state.Moreover, motion state is judged to be more accurate by introducing acceleration amplitude, absolute value of angle amplitude and the feature of maximum value for absolute value of angle amplitude.

The invention relates to a capacitance-type information identifying system which utilizes a capacitance induction principle to identify corresponding information in an information storage device. The system has a simple method, is rapider for a user to use by putting a memory card on a card reader, saves time to a certain extent and resists abrasion by arranging a conductive medium in the memory card to have stabler performance, thereby effectively prolonging the service life of the memory card, objectively saving materials and avoiding unnecessary waste. Moreover, the capacitance-type information identifying system is hardly interfered by external environment, thereby having higher confidential performance.

The invention relates to the field of detection of a backlight screen and particularly relates to visual inspection equipment of the backlight screen. The visual inspection equipment comprises a conveying device and further comprises a first detection unit, a film tearing device and a second detection unit; the first detection unit, the film tearing device and the second detection unit are arranged beside the conveying device; each of the first detection unit and the second detection unit comprises an intelligent lightening device and a camera. Compared with the prior art, the visual inspection equipment of the backlight screen has high detection speed and high detection efficiency and is unlikely to interfere by the outer environment; and the possibility of missed detection and wrong detection is low, the stability is good, manual detection can be replaced and the labor cost is reduced.

The invention discloses an optical fiber image transmission-based detection system for cylinder surface microscratch defects. A fiber optics bundle image transmission principle is used to regularly arrange image transmission optical fibers on one concentric circumference, thus realizing image acquisition and defect detection on the circumference of the outer surface of a cylinder. A device mainly comprises a spherical condensation mirror, a point light source, a focusing lens system, light transmitting optical fibers, a self-focusing bar lens, the image transmission optical fibers, a cylindrical lens and a linear array CCD (Charge Coupled Device). On one hand, external illumination light is led in by the light transmitting optical fibers, so that an annular detection area of a detected surface is sufficiently illuminated; on the other hand, the image transmission optical fibers are used for transmitting reflected light on the detected surface to a CCD focusing lens system; finally, outer surface defects of a cylinder-type object are analyzed and detected by an image capture card and computer software. The device is simple in structure; when a closed revolving surface is detected, the microscratch defects of the whole circumference of the surface of the cylinder can be detected in real time without rotating the to-be-detected object or the linear array CCD.

The invention provides an airtight container leakage positioning and measuring system based on ultrasonic detection. A hardware system comprises a main control single-chip microcomputer, an ultrasonictransmitting circuit, an ultrasonic receiving circuit, an audio recognition processing module, and a power supply module; a software platform can achieve ultrasonic transmitting, local oscillation signal generation driving and serial port data transmission through C language. The system is mainly used for detecting gas leakage of a high-pressure sealed container or a pipeline and positioning leakage in the presence of leakage. The system has the main advantages of safety and simplicity in leakage positioning measurement operation, convenience in system use, low device cost, relatively high positioning precision, wide range of measured objects and the like. The system has the advantages of low detection and positioning cost, relatively high precision, small method limitation, universalityand transportability, and huge market promotion and application potential.

The invention discloses a satellite-borne cable-net-foldable antenna profile accuracy measurement method. The method specifically includes the following steps of preparation work conducted before antenna measurement, picture taking, measuring point coordinate calculation achieved by leading in a measurement device, coordinate conversion, surface fitting, and antenna profile accuracy calculation. The method is high in measuring efficiency and speed, and one-time measurement time of a cable net type foldable antenna is about one hour; devices are convenient to use and easy to disassemble and assemble, and less time is spent on the early-stage preparation work; non-contact type measurement is conducted, and no direct contact with the reflection face of the antenna is needed in the measurement process; the measurement stability is high. The method is not prone to interference of environment factors; the measurement accuracy is high, the maximum measurement error is 0.2 mm, and the measurement requirement of the foldable antenna can be completely met; compared with other measurement methods, the measurement cost is low.

The invention discloses a revolution body object pose vision measurement method. The method comprises the following steps: based on a vision measurement technique, and respectively distributing two high-speed cameras on the side surface and the lower surface of an object by adopting two high-speed cameras; setting a mark on the object for measuring a rolling angle and a mass center position of the object; and calculating to obtain position and posture information of the object by extracting a mark line and an axial contour line on the object surface in images captured by the cameras. The position and posture information of the revolution body object obtained by using the method disclosed by the technical scheme of the invention has the advantages of high precision, high robustness and large measurement range compared with that of an existing measurement technology.

The invention provides a magnetic rod antenna. The magnetic rod antenna comprises a magnetic rod and a wire, wherein a plurality of parts of the wire are sequentially wound around the magnetic rod to form a plurality of coils in an alternately sparse and dense manner, and the magnetic field intensity of the plurality of coils laminated on division magnetic fields of respective cross section of the same magnetic rod is higher than the magnetic field intensity of the total magnetic field of the coil formed by uniformly winding the existing wire around the magnetic rod. The magnetic rod antenna provided by the invention is longer in signal transmission distance, and is not susceptible to the interference of an outside environment; and moreover, with the magnetic rod antenna provided by the invention, the magnetic flux of the antenna can be improved.

The embodiment of the invention discloses an intelligent tissue recognition method and device. The method comprises the steps of scanning tissue by using ultrasonic front-end equipment, and receiving an RF echo signal carrying external excitation; obtaining the RF echo signal data of different tissue, training an intelligent tissue classifier according to feature identification which can describe time domain signals, feature identification which can best describe frequency domain signals, feature identification which can best describe tissue images and the RF echo signal data, and classifying the different tissue, so as to recognize tissue feature by using transverse fluctuation information of detected tissue. The transverse fluctuation of the tissue is not liable to be affected by ultrasonic probe equipment movement and manual measurement deviation, the tissue feature reflected by the transverse fluctuation information is more accurate, and the accuracy of the intelligent recognition method is further improved.

The invention discloses a method for separating Colletotrichum musae. According to the method, a special spore discrete filament is adopted, and a single conidium is directly separated from a Colletotrichum musae standard sample and is cultured to form a Colletotrichum musae germ strain with a single genetic composition. The implementation operation steps of the isolation culture are as follows: 1) preparation of a Colletotrichum musae standard sample; (2) preparing spore discrete filaments; (3) preparing a spore dispersing plate; (4) dispersing conidia; (5) cutting small square blocks loaded with monospores; and (6) forming a monospore isolated strain. The method has the following advantages: 1) a key appliance for separating spores is simple and easy to manufacture, and the separation operation is simple and easy; 2) single spore strains can be separated and obtained at one time; 3) the separation work consumes less time and labor; and 4) the working efficiency of Colletotrichum musae germ separation and the reliability of the separation result can be obviously improved.

A sealing device having a stationary-side installation ring tightly fitted into and fixed to an outer peripheral stationary-side member, a rotation-side installation ring tightly fitted into and fixed to an inner peripheral rotation-side member, a stationary-side lip provided on the stationary-side installation ring and whose forward end is made to be slidably in intimate contact with the rotation-side installation ring, rotation-side lips formed integrally with the rotation-side installation ring and slidably in intimate contact with the stationary-side installation ring, and a pulser ring formed of a synthetic resin or rubber-like elastic material mixed with magnetic powder, formed integrally with the rotation-side installation ring (12), and magnetized in multiple poles. On the outer periphery of the pulser ring, a flange is extended positioned on the outer side of the rotation-side lips and closely facing the stationary-side member or the stationary-side installation ring. The sealing device with the pulser ring has excellent sealing ability.

The invention discloses a method for outputting signals by multiple screen processors. The method comprises the following steps of: according to synchronizing signals, modulating wireless signals, wherein the frequencies of the synchronizing signals are the same with those of field synchronizing signals of video signals of the screen processors; transmitting the wireless signal to each screen processor; receiving the wireless signal by each screen processor; according to the synchronizing signals demodulated from the wireless signals, synchronously outputting the video signals. The invention also discloses a device for outputting the signals by multiple screen processors. According to the method and the device for outputting the signals by multiple screen processors, each screen processor can correctly receive the synchronizing signals; the synchronous output of the video signals of the screen processors is implemented; and the configuration flexibility of a multiscreen display system is improved.

The invention discloses a digital hopper-balance checker which has rapid and accurate check and stable signals. The digital hopper-balance checker comprises a high-precision hydraulic pump, a jack, a stress bearing head and a weighing sensor of a checked hopper balance. The digital hopper-balance checker is characterized in that a plurality of digital weighing sensors are vertically arranged between the stress bearing head and the weighing sensor of a checked hopper balance and connected into a digital connecting box together. The digital connecting box transmits a digital signal into the computer to be processed by a bus. Because the digital signal can be stably transmitted and processed, compared with the prior analog sensor checker, and based on the high efficiency of rapid check, the invention can guarantee the safety and the reliability of signal transmitting and receiving and has wide market prospect.

The invention relates to an automatic magnetic check valve, which comprises a cover body, an upper magnet, a valve body, a shaft seat, a valve, a lower magnet and a sealing ring, wherein the shaft seat is arranged on one side of the bottom of the valve body; the valve is hinged on the shaft seat; the upper magnet is arranged on the valve body; the lower magnet is arranged on the valve; the sealing ring is arranged between the valve and the valve body; and the upper magnet and the lower magnet are in a Z-plane asymmetric structure. When asymmetric magnets attract each other, an Fx component force not equal to zero is generated, the consistency of the repeated opening/closing action of the valve is greatly improved under the action of the Fx, and the valve is closed to be accurately attracted and sealed; the valve body has a high flow structure, so that an effective area of fluid flowing through the valve body is greatly improved; the valve body is hardly wound with hair and cotton and is cleaning-free; the valve can realize 90-degree opening in a circular pipeline, the drainage is not hindered and the flow velocity is high; and the overflow of sewage is prevented, polluted air, insects and cockroaches are prevented. The check valve is conveniently arranged at a sewage pipeline to replace the conventional water return bend, is suitable for sewage drainage, and is also suitable for other fluid pipelines with one-way flow requirement.

The embodiment of the invention provides a driver action recognition method and device based on a three-dimensional convolutional neural network. Feature data is extracted from a video photographed bya driver through preset feature engineering, and a target model recognizes the behavior of the driver according to the feature data , wherein the target model is obtained by training a constructed three-dimensional convolutional neural network, the three-dimensional convolutional neural network comprises a plurality of combined layer structures connected in sequence, and each combined layer structure comprises a convolutional layer and a pooling layer. By improving the structure of the three-dimensional convolutional neural network, the trained target model has a more accurate recognition result on the action of the driver. And on the other hand, compared with facial feature acquisition, driver action acquisition is not easily disturbed by the environment, the feature data contains optical flow features reflecting time-dependent changes of driver actions, and the accuracy of an identification result is further improved through the action continuity data.