1477results about How to "No distraction" patented technology

The invention provides a sight tracking method and a sight tracking device. The sight tracking device comprises a video acquiring module, a head video processing module, an eye video processing module and a sight direction calculating module, wherein the video acquiring module is used for obtaining an image of the head part of a user, and the image is used as an input image; the head video processing module is used for tracking facial key points according to the input image; the eye video processing module is used for positioning a pupil center and an eyeball center according to the tracked facial key points so as to determine a three-dimensional coordinate of the pupil center and a three-dimensional coordinate of the eyeball center; and the sight direction calculating module is used for calculating a sight direction of a user by using the three-dimensional coordinate of the pupil center and the three-dimensional coordinate of the eyeball center.

The invention discloses a subsequent evolution embedded D2D(device-to-device) implementing method on the basis of IMT-A (intelligent multimode terminal-advanced) standards, and mainly solves the problems that complicated mode selection and single resource allocation strategy during establishment of a cellular network utilizing the embedded D2D technology. The subsequent evolution embedded D2D implementing method includes that a base station acquires state information of a channel between a user and the base station, and forms an adjacent user list by the aid of a global position system GPS; the user percepts adjacent users to acquire a power level list of the adjacent users and uploads the power level list to the base station; the base station forms a full-network channel gain list and generates a D2D potential cluster of the user; the optimal transmission mode is selected for the base station according to the full-network channel gain list, and user's requirement for quantity of service Qos and information of the D2D potential cluster by a joint optimization resource allocation method when the terminal user sends a service request for the base station; and communication is established between the terminal user and a target user according to the selected optimal transmission mode. Compared with conversional cellular communication, the method can assist in increasing frequency spectrum utilization rate, increasing system capacity and reducing overall power consumption of cells.

The invention discloses a sight tracking method based on neural network head movement compensation, and the method comprises the following steps of respectively placing two infrared sources on middle points of two side edges of a display screen, forming a bright spot image on the surfaces of human corneas after the two infrared sources are reflected by the human corneas, and enabling a dark pupil effect to occur in pupil images, and the method specifically comprises the following steps of statically calibrating a fixation point; compensating head movement; and calculating the fixation point by utilizing a static mapping module and a head movement compensation module to form a dynamic human eye fixation point matching module. Due to adoption of the scheme provided by the invention, requirements on hardware are low, only an ordinary camera and two infrared sources are needed, the restriction of a three-dimensional tracking method in which multiple cameras are needed can be changed, the system complexity and the needed computation volume can be greatly reduced, and the sight tracking instantaneity can be improved; and in addition, the head movement is allowed, direct application can be realized through one-step calibration, repeated calibration is avoided, and main defects of the two-dimensional calibration method are overcome.

The invention relates to a permanent-magnet type eddy current tuned mass damper which comprises a steel magnetic-conducting baseplate (10), wherein end plates (3) are respectively arranged at two ends of the baseplate (10). The permanent-magnet type eddy current tuned mass damper is characterized by also comprising a circular shaft (4) and a linear bearing seat (5), wherein two ends of the circular shaft (4) are respectively arranged on the corresponding end plates (3), and the linear bearing seat (5) is sleeved on the circular shaft (4) and can slide on the circular shaft (4); the lower part of the bearing seat (5) is connected with a mass block (6), and two ends of the mass block (6) are respectively connected with the corresponding end plates (3) through spiral springs (7); the lower part of the mass block (6) is connected with a permanent magnet (13), and a copper plate (12) is arranged below the permanent magnet (13) and connected with the baseplate (12) through a cushion block (11). By adopting an eddy current damping model with special design, the permanent-magnet type eddy current tuned mass damper realizes the damping adjustability of the damper in a larger range, realizes the complete separation between the system rigidity and the damper, and cancels the mechanical friction energy consumption and stress concentration elements, thereby avoiding the common TMD damage failure.

The invention discloses an infrared laser pointer remote pointing and virtual touch system which is characterized in that the system is composed of a computer system, an infrared laser pointer, an image acquisition device and an image identification positioning module; the computer system comprises a display device and a mainframe computer; the infrared laser pointer is provided with an infrared laser emitting key and can emit an infrared laser to point to a display screen; the image acquisition device is arranged in front of the display device to completely contain the display screen in the viewfinder range; the image identification positioning module identifies an infrared laser point and the position thereof in the display screen according to the acquired image, differentiates different operations including light spot instruction, light spot movement and clicking according to the time length and the times of the infrared laser, controls the computer system to generate a light spot at the corresponding position on the display screen and completes the corresponding operation. The invention is especially suitable for large-screen display equipment.

The present invention concerns a diversity transmitter and a corresponding diversity transmission method. A symbol matrix is input for being processed, the processing comprising supplying columns of the symbol matrix to a plurality of at least two branches, each branch being supplied to a respective one of spatial channels for transmission. Parallelization is performed so as to provide within each branch at least two parallel channels allocated to a respective user. The symbol matrix signals is subjected on at least one of the branches to an invertible linear transformation with at least one fixed complex weight, the complex weight being different for at least two parallel channels.

The invention relates to a bacterial culture fermentation tank device and a fermentation technology thereof. The bacterial culture fermentation tank device is characterized in that the top of the fermentation tank is provided with a cleaning and disinfecting charging tube, a feeding tube and an air input tube; the fermentation tank is controlled by a PLC controller, and the input end of the PLC controller is connected with a temperature sensor, a pH value sensor, a dissolved oxygen value sensor and a stirring speed sensor which are arranged in the tank body; the lower side of the fermentationtank body is provided with a dumping tube; the cleaning and disinfecting charging tube is communicated with a pure steam input tube, an input tube of water for injection, an acid-base lotion input tube, a purified water input tube and a drinking water input tube, wherein the bypass direction of the pure steam input tube is provided with the air intake tube of the air filter; and the air intake tube extends to the bottom of the fermentation tank. The device has good online cleaning, online sterilization and heat preservation effect and is favourable for culturing and fermenting bacteria.

A method of prompting user position includes residing user device in overlap cell of access point, down sending network prompt message to user device by access point, information that user is at overlap network of access point by user device according network prompt message. The universal mobile communication system enabling to realize said method is also disclosed.

The invention discloses a biomass continuous pyrogenation carbonizing apparatus provided with a flexible screw conveying appliance, which comprises a motor (1), a coupling (3), bearings (4), a flexible screw spring (6), a pyrolysis tube (11), a feed inlet (5), a carbon discharging outlet (12) and a heating device; one end of the pyrolysis tube (11) is provided with the feed inlet (5) communicatedwith the inner cavity of the pyrolysis tube (11), and the other end is provided with the carbon discharging outlet (12) communicated with the inner cavity thereof; the inner cavity of the pyrolysis tube (11) is inserted with the flexible screw spring (6) along the axial direction; one end of the flexible screw spring (6) is connected with the output shaft of the motor (1) through the first bearing (4) and the coupling (3), and the other end is supported on the second bearing (4); and the outer side of the pyrolysis tube (11) is provided with the heating device for heating the pyrolysis tube (11). The biomass continuous pyrogenation carbonizing apparatus is easily suitable for long-distance convey and has simple structure.

The invention relates to a contact network key position dynamic offset detection method and a device thereof. A detection identification is arranged on objects at the key position of the contact network to be detected such as contact line of the section, carrier cable, dropper and upright of the detected contact network, an online CCD detection device is arranged on the upright of the contact network, a CCD camera acquires video image of the contact network, the detected displacement and quantity of motion are stored and amplitude, angle of twist and corresponding time course curve are drawn, and the online CCD detection device transmits the data to an upper machine room data center by virtue of a wireless communication module. The method and device of the invention are non contact and self-calibration, practicability is strong, and synchronous monitoring is carried out, so as to obtain data and image; amplitude, frequency, angle of twist and corresponding time course curve are recorded in real time and are used for analyzing influence of the stability of the contact network in high wind environment or under the action of other factors, and travelling is guided according to the real-time deviation state of the contact network.

The invention relates to a method and a device suitable for measuring the fluffing and pilling amount and abrasion amount of a textile. The device is composed of a cloth sample barrel for coiling and clamping the textile, a rubbing mechanism for fluffing and pilling a cloth sample, a mini-type dust collector for collecting fallen fibers and fuzzy balls, an electrostatic electrode for assisting filoplume to be vertical, a collector for shearing and collecting the fuzzy balls and the filoplume, an optical measurement system for observing the fuzzy balls of the cloth sample, an electronic scale for weighing the weight of the filoplume fuzzy balls, a data acquisition and control system and a computer. The measurement method comprises the following steps: after coiling the cloth sample by equal tension, immediately measuring the filoplume significance as well as the quantity, form, size and distribution of the fuzzy balls; rubbing, fluffing and pilling to prepare a sample and synchronously measuring the process and measuring the filoplume significance of a final rubbing sample, the fuzzy ball quantity, the abrasion to the filoplume fuzzy balls and the remaining amount. The device and the method are ingenious, practical, accurate and quantitative; in-situ measurement for one machine with a plurality of purposes and one measurement process with a plurality of indexes is realized; the device and the method can be used for preparing the sample by fluffing and pilling the textile, measuring the fluffing and pilling amount and abrasion amount of the textile, and carrying out comprehensive analysis and evaluation.

A punching machine comprising at least one punching head including a support body having a first end delimiting a peripheral shoulder, a second end, and at least two parallel seats being angularly spaced from one another and extending through said support body from said first end to said second end; a punching tool holder slibably mounted in at least one of said seats; a multiplicity of removable resilient means angularly spaced from one another, each having a first end resting on said peripheral shoulder and a second end facing away from said peripheral shoulder; an annular cap member arranged in front and spaced from said peripheral shoulder and designed to abut against said second end of said resilient means; a rotor member mounted for rotation on said annular cap member and having an inner face thereof facing towards said punching tool holder; a sliding member projecting from said inner face and arranged to slide onto said punching tool holder when said rotor member rotates; and driving means designed to stepwise drive said rotor member, whereby locating said sliding member onto a pre-selected punching tool holder.

A method of removing noise and interference from a signal by receiving the signal, calculating a joint time-frequency domain of the signal, estimating instantaneous frequencies of the joint time-frequency domain, modifying each estimated instantaneous frequency, if necessary, to correspond to a frequency of the joint time-frequency domain to which it most closely compares, redistributing the elements within the joint time-frequency domain according to the estimated instantaneous frequencies as modified, computing a magnitude for each element in the joint time-frequency domain as redistributed, plotting the results as the time-frequency representation of the signal, identifying in the plot any noise and interference components in the received signal, eliminating from the redistributed joint time-frequency domain elements that correspond to noise and interference, and recovering a signal devoid of noise and interference from the modified redistributed joint time-frequency domain.

The invention discloses a bias control device and method suitable for a dual-polarization IQ modulator, and relates to the field of optical signal modulation. The bias control device comprises an optical coupler, a photoelectric detector, an ADC and an FPGA chip, wherein the optical coupler, the photoelectric detector, the ADC and the FPGA chip are connected in sequence, and the FPGA chip is respectively connected with a first DAC, a second DAC, a third DAC, a fourth DAC, a fifth DAC and a sixth DAC, and controls the bias of the modulator through the DAC. The method comprises the steps of determining the initial value of an IQ bias voltage by minimizing the output optical power of the modulator, respectively overlapping low-frequency low-amplitude dither signals on the IQ bias voltage, and achieving the accurate control over the IQ bias voltage and a phase difference bias voltage through an iterative algorithm.

The invention discloses a method for detecting a sound field parameter in a fluid medium by using a laser vibrometer. A transmitting transducer is arranged in a measured water pool through a mounting and positioning mechanism, a laser vibrometer probe is mounted on the surface of the water pool through a three-dimensional positioning device, laser is vertically projected onto an interface of water in the water pool and air, and the sound axes of the laser beam and the transmitting transducer coincide; and the interface between the liquid medium and the air is used as a reflection face of a laser beam, and the sound field parameter is detected by an optical method to obtain a sound pressure. The method has the advantages that: the need of arranging reflecting and sound transmitting membrane in a sound field is obviated, and the measurement steps are simplified. As it is unnecessary for a measuring light beam to pass through the inside of fluid, the value of real vibrating velocity of amass point can be obtained without taking the influences of an acoustooptic effect on the light beam into consideration nor correcting the test result; the value of the sound pressure can be obtaineddirectly according to the relationship between the sound pressure and the mass point; and the efficiency of the measurement is improved.

The invention discloses gold shell magnetic nanoparticles. Each particle sequentially comprises a magnetic core, a silica shell and a gold shell from the inside to the outside, wherein the silica shell covers the magnetic core; the gold shell covers the silica shell; the particle size of the particle is 20 to 30 nanometers; the thickness of the silica shell is 5 to 10 nanometers; and the thickness of the gold shell is 4 to 8 nanometers. The gold shell magnetic nanoparticles are prepared by directly forming gold shells on the surface of manufactured silica shell magnetic core nanoparticles by using nano gold catalytic in-situ amplification and can be effectively used for detecting a cellulose gene. The gold shell magnetic nanoparticles have high stability and bioaffinity and can immobilize various biomolecules. The preparation method of the gold shell magnetic nanoparticles is simple and easy to operate and can be accurately, quickly and conveniently used in the detection and separation of the cellulose gene at low cost.

The invention discloses preparation of hydrophilic polymer and application thereof in detecting mercury ions based on the change of fluorescence and color, particularly a rhodamine B hydrazide grafted hydrophilic polymer probe applied to the detection of mercury ions in aqueous medium based on the change of fluorescence and color and a kit and test paper applied to the detection of the mercury ions by using the probe, belonging to the technical field of material preparation and heavy metal ion detection. The polymer containing a rhodamine chromophore is prepared by subjecting rhodamine B hydrazide and propylene oxide on the side chain of polyvinylpyrrolidone-glycidyl methacrylate which is a water-soluble polymer to ring-opening reaction, has good water solubility and can be applied to selectively detecting the mercury ions by using visual colorimetry and fluorescence detection. The probe realizes the high-sensitivity and high-selectivity rapid quantitative or semi-quantitative detection of the trace mercury ions in the aqueous medium, has a simple synthetic route, low cost and convenience of use, is applicable to amplified synthesis and actual production and has great application prospects in the field of medicine, biology and environmental science and the like.

The invention relates to an immunochromatography time resolution fluorescence kit for synchronously detecting mixed pollution of five types of fungaltoxinfungi toxins of aflatoxin and the like and application. The immunochromatography time resolution fluorescence kit comprises an immunochromatography time resolution fluorescence test paper strip and sample reaction bottles of monoclonal antibody freeze-drying samples containing europium labels, wherein the fluorescence test paper strip comprises a PVC (polyvinyl chloride) substrate; a water absorbing pad, a detection pad and a sample pad are sequentially adhered onto one surface of the substrate; the adjacent pads are overlapped and connected at the connecting part; the detection pad uses a nitrocellulose membrane as a base pad, and is provided with a transverse quality control line and five detection lines from top to bottom to respectively coat the bovine serum albuminaflatoxin B1-BSA conjugate of each toxin; a fumonisin B1 monoclonal antibody is excreted by a hybrid tumor cell strain Fm7A11 with collection number of CCTCC NO.C201636. The immunochromatography time resolution fluorescence kit is applied to synchronously detect the mixed pollution of toxins of aflatoxin B1, fumonisin B1, ochratoxin A, zearalenone and aspergillus versicolor, and has the advantages that the operation is simple and quick, and the sensitivity is high.

The invention discloses a method of controlling a priority signal for right-turning vehicles on a straight-going and right-turning shared lane at an intersection. A left-turning guide line is arranged at the entrance of each intersection; a straight-going waiting area of a straight-going and right-turning shared lane is set in the front of the straight-going and right-turning shared lane at the intersection; a group of predicting signal lamps for the straight-going waiting area of the straight-going and right-turning shared lane are arranged near the stop line of the entrance having the straight-going waiting area of the straight-going and right-turning shared lane in the front and are used for controlling motor vehicles on the straight-going and right-turning shared lane to enter the waiting area; after straight-going vehicles on an intersection lane completely pass over a conflict point at the right crossing point with the waiting area of the straight-going and right-turning shared lane in the front, vehicles on the straight-going and right-turning shared lane enter the waiting zone; the main signal lamp is provided with an independent left-turning phase; the phase release sequence of the main signal lamp is straight-going prior to left-turning, so that right-turning vehicles are prior to cross the intersection; and right-turning vehicles can cross the intersection when left-turning vehicles on the intersection lane are released; therefore, the passing efficiency is improved and the delay time is reduced; no pedestrians and bicycles interfere with the running of the vehicles at this moment, so that the traffic safety is improved.

The invention provides a method and equipment for distributing resources and sending a channel state information pilot signal. The invention discloses a method and equipment for distributing resources for a CSI-RS (channel state information-reference signal) and a method and equipment for sending a CSI-RS. The method mainly comprises the following steps: after the pilot carrier frequency shift amount of a target cell is determined according to the Cell ID (identity) of the target cell, frequency shift is carried out on RE (Resource Element) carrying the CSI-RS in a PRB (Physical Resource Block) according to the determined pilot carrier frequency shift; and because the RE carrying the CSI-RS and the RE carrying a UE (user equipment)-Specific Port5-RS adopt the same algorithm for frequency shift, the CSI-RS subjected to frequency shift and the UE-Specific Port5-RS subjected to frequency shift have no interference.

Disclosed are a data forwarding method and apparatus that support multiple tenants. The method in an embodiment of the present invention comprises: receiving data packets, and performing tenant network identification on the received data packets; forwarding, according to a tenant network identification result, the data packets to a flow table group dedicated to a corresponding tenant for query, wherein the flow table group dedicated to the corresponding tenant comprises one or more flow tables; and processing, according to a corresponding flow table entry operation, a data packet hit after the query. In the technical solution provided by the embodiments of the present invention, according to a tenant network identification result, data packets are forwarded to one or more flow tables dedicated to a corresponding tenant for forwarding query, and a data packet hit after the query is processed according to a flow table entry operation. Because forwarding rules between tenants are completely isolated by using different flow tables, forwarding between the tenants are not affected by a conflict between different policies, and the tenants do not interfere with each other.

The invention discloses an ECL (electrochemiluminescence) immunosensor for detecting tumor markers and a preparation method and applications thereof. The immunosensor comprises a working electrode, a reference electrode and a counter electrode, wherein the working electrode is a gold electrode, cysteamine, glutaraldehyde, a tumor marker first-antibody, a tumor marker, and a composite functionalized nanosphere are sequentially decorated on the surface of the gold electrode, the composite functionalized nanosphere is simultaneously marked by a tumor marker second-antibody and an ECL marker, and non-specific active sites are closed by using bovine serum albumins. The preparation method comprises the steps of preparing the gold electrode on which the tumor marker first-antibody is fixedly carried; synthesizing the composite functionalized nanosphere simultaneously marked by the tumor marker second-antibody and the ECL marker; and finally, assembling the obtained gold electrode and the composite functionalized nanosphere into an ECL immunosensor. The ECL immunosensor disclosed by the invention is high in sensitivity, rapid in analysis speed, strong in stability and selectivity, good in reproducibility, easy to operate, and flexible in method.

The invention relates to a design method used for transmitting DC high-temperature superconducting cable body coaxially and bidirectionally, belonging to the field of power system transmission and transformation; the design method comprises the steps as follows: according to the mechanical characteristic and the radius of enwinding framework of the superconducting strips, parameters of the superconducting cable body such as the enwinding helix angle and the enwinding pitch are determined; the magnetic field distribution of all layers of superconducting cable body are determined according to the operation current, thus determining the critical current on all layers of the cable; according to the critical current and the operation redundancy, iterative calculation is carried out for operation current and the magnetic field, thus finally gaining the critical current, best operation current, enwinding layer number and number of the cables. The designed superconducting cable body increases no enwinding process difficulty and achieves bidirectional transmission of DC current; the utilization ratio of the superconducting strip critical current reaches more than 90%; the quantity and low-temperature heat loss of the superconducting cable low-temperature container are respectively reduced by half. The design method has the advantages of large transmission capability, no loss, compact structure, certain current limiting capability, stable mechanical structure, self-shielding, no electromagnetic interference and the like.

The invention relates to the field of 3D topography measurement. An embodiment of the invention provides a speckle structure light projection module group and a 3D depth camera, wherein the speckle structure light projection module group comprises: an array light source for emitting a laser beam corresponding to a first spot pattern, a collimating lens for modulating the laser beam into a collimated beam corresponding to the first spot pattern, and a holographic optical element for modulating and expanding the collimated beam to form a second spot pattern and projecting the second spot patternto a scene object to be tested; the holographic optical element is produced via laser interference exposure processing. Thus, the holographic optical element processed via the laser interference exposure processing is used, ghost line interference problems can be prevented, and stray background light is reduced; in addition, laser interference processing can be more efficient and less expensive than etching processing.

The invention provides a system and a method for collecting and identifying images of capillary pipe liquid level type data of a measuring instrument, which are used for intelligently reading and recording the capillary pipe liquid level type data needing to be manually read in the measuring instrument. The system for collecting and identifying the images of the capillary pipe liquid level type data in the measuring instrument comprises a liquid level shooting device, a bar code scanning module, a data transmission module, a computer, an image processing system, a client user interface module, a database and a monitoring module. The system and the method have the advantages that the liquid level shooting device which can be closed is fixed in the capillary pipe liquid level position of the measuring instrument by a movable clamping mechanism, and an image is shot under the control of the bar code scanning module when a camera and a bracket are not touched, so the liquid level image can be obtained without dithering and interference by other object images, and the intelligent identification difficulty of the liquid level data is reduced.

The invention consists of: TV station signal output device; HFC transmission network; hub and descramble controller; user terminal device. The remote control for single channel output at the mode of signal processing combining channel processing can make scramble / descramble of digital cable TV more efficiency, safety.

The present invention provides a method for transmitting the wireless frame when the TDD mobile communication systems coexist and a system thereof. Two TDD systems have same frame length of the wireless frames and are equally provided with a switching point from uplink to downlink and a switching point from downlink to uplink, wherein the second TDD system such as Wimax system confirms the lengthand the transmission time of the uplink subframe and downlink subframe in the wireless frame of the second TDD system according to the requirement that the homogeneous switching points of two systemsare aligned and according to the timing information of the wireless frame of the first TDD system such as TD-SCDMA system. The base station of the second TDD system transmits the downlink subframe according to the confirmed time, and indicates the transmission time of the uplink subframe in the transmitted uplink control information. The system completes the function with a frame time regulation and control module connected with two TDD systems. The method of the invention can facilitate that the TDD systems with different wireless frame structures coexist.

The utility model relates to a bullet shooting counting device, belonging to a bullet shooting counter, which comprises a single-chip microcomputer, a testing circuit of a magnetic field sensor, a power supply circuit, a keyboard circuit, a liquid crystal display circuit, a clock circuit, a communication circuit, a reset circuit, and a storage circuit. Compared with the prior art, the utility model has advantages of high reliability, precise countering, no affection on the normal shooting, and strong anti-interference performance. The utility model can be used to calculate the bullet speed in the bore of a gun, analyze the dynamical property of the bullet in the bore of a gun, and judge the technical feature of the guns, enabling the maintenance and the updating of multi counter system information with long time for continuous use.

The invention discloses a method for rapidly detecting pigment green in tea through uisng a laser-Raman spectrum technology. The method comprises the following steps of: performing laser-Raman spectrum chart scanning on tea to be detected, and generating any one group of the following three groups of absorption peaks: (1) 2150(+ / -3)cm<-1>, 842(+ / -3)cm<-1>, (2) 1524(+ / -3)cm<-1>, 1339(+ / -3)cm<-1>, 842(+ / -3)cm<-1>, and (3) 2150(+ / -3)cm<-1>, 1524(+ / -3)cm<-1>, 1339(+ / -3)cm<-1>, 842(+ / -3)cm<-1>, so as to obtain a qualitative result of pigment green in the tea, wherein when the first group of characteristic peaks occurs, the pigment green is formed by mixing iron blue and lead chromate yellow; when the second group of characteristic peaks occurs, the pigment green is formed by mixing phthalocyanine blue and lead chromate yellow; and when the third group of characteristic peaks occurs, the pigment green is formed by mixing the iron blue, the phthalocyanine blue and the lead chromate yellow. According to the method, the existence of the pigment green in the tea can be accurately, qualitatively and quantitatively determined.