935results about How to "Lower requirement" patented technology

Devices, systems, and methods for the localization of body lumen junctions and other intraluminal structure are disclosed. Various embodiments permit clinicians to identify the locations of intraluminal structures and medical devices during non-surgical medical techniques, such as cardiac ablation, by determining the intralumen conductance and/or cross-sectional area at a plurality of locations within the body lumen.

Coherent detection of a received EM signal using universal frequency translation (UFT) is described herein. The received EM signal is sampled according to a sub-harmonic LO signal, where the LO signal is in frequency and phase coherence with the received EM signal. The coherent receiver includes a down-converter/demodulator and a synthesizer/loop filter that are both implemented using UFT technology. The down-converter/demodulator samples the EM input signal using a UFT module according to the coherent sub-harmonic LO signal that is generated by the synthesizer/loop filter. The synthesizer/loop filter generates the coherent LO signal using a phase detector, a loop filter, and an up-converter. The phase detector and up-converter are implemented using UFT modules.

Methods and apparatus are disclosed which are useful in rapidly verifying a person's identity at a distance, and/or identifying a person with a high degree of certitude, from a pool of other persons, using an innovative technique to compare facial images. Such a person (Candidate) may voluntarily consent or cooperate to have his facial image recorded, or the Candidate's facial image may have been recorded involuntarily. Typically, an image recorded for identification purposes will be a facial image of a Candidate present before a camera or other image procuring device, to be compared with a previously stored Reference facial image, as in a building lobby, for identification purposes. The Candidate's facial image is recorded voluntarily but the Reference image is not in the Candidate's possession. Reference images may be stored as Reference templates in an image storage database (such as developed by a governmental agency), or in an entrance lobby to the Candidate's apartment, or in a camera memory installed in a cockpit door of a transit vehicle to prevent access by hijackers. For verification purposes, the Reference facial image may be a hard copy, for example, a driver license, membership card, or passport in the Candidate's possession. A specially modified digital camera significantly reduces the requirement for a large memory to store templates, and makes it feasible to search for and identify rapidly (at distances up to 500 feet) suspects among a group of persons passing into or through such facilities as terminals, vehicles, customs stations, malls, ramps, etc. It is feasible to combine face recognition technology with other biometrics that express the degree of sameness as a numerical match score.

In embodiments of the present invention improved capabilities are described for virtual machine scan optimization. In response to a change in the primary virtual machine, the virtual machine scan optimization may involve comparing the primary virtual machine to the related virtual machine and tracking changes of the primary virtual machine with respect to the related virtual machine wherein the changes are identified by location within the primary virtual machine; forming a tracked changes log; generating a relevant file map of the primary virtual machine wherein the relevant file map includes a plurality of relevant files and each of the plurality of relevant files' locations in the primary virtual machine; comparing the changed locations identified in the track changes log with the locations of the plurality of relevant files to determine if any one of the plurality of relevant files has been changed; and in the event that a relevant file has been changed, as indicated by the comparison of the relevant file map to the tracked changes log, causing the changed relevant file to be security scanned.

The invention discloses an LTE (Long Term Evolution) channel measurement and feedback method suitable for the CoMP (Coordinated Multi-Point) working mode. A base station configures CSI-RS resources for signal transmission points in the CoMP; a terminal performs channel measurement on the signal transmission points according to the CSI-RS resources, and feed the signal transmission points of which the signal-to-noise ratio satisfies the preset condition back to the base station; the base station selects the signal transmission points according to the feedback information of the terminal and the given working information of the base station side, and sets one or more measurement assumptions and corresponding CSI-RS resources; the terminal performs further channel measurement and feeds back the measurement information according to the measurement assumptions and the corresponding CSI-RS resources; and if the measurement information fed back by the terminal can not determine the resource dispatching mode, the terminal repeatedly performs measurement and feedback till the base station can determine the resource dispatching mode for resource dispatching. The method provided by the invention solves the problem in the prior art that the terminal has large calculated amount due to coexistence of various measurement assumptions.

The invention discloses a method, device and system for configuring an access device. The method comprises the steps of: obtaining a type and a master key of the access device, sending the type of the access device to a terminal device, and receiving a response message of the terminal device, wherein the response message carries identifier information appointed by the terminal device for the access device according to the type of the access device; and configuring the access device according to the master key and the identifier information of the access device. The technical scheme disclosed by the invention realizes that the access device is uniformly and automatically configured by a gateway device and then the terminal device can access the access device according to the master key of the access device. The technical scheme ensures that a user does not need to remember the master key of each access device and manually configure the access device before the terminal device accesses each access device, and therefore, the requirement on the user is lowered and the load of the user is reduced.

The invention provides a dynamic encryption and unlocking method based on an electronic coded lock. A coded lock system thereof consists of a dynamic code generator and an electronic coded lock control system. The code generator can generate dynamic codes by adopting the multi-code table encryption algorithm and taking the time as parameters. When a user unlocks, both a customized static code and a dynamic code must be input. The coded lock control system decides whether to unlock depending on the correctness of the input codes. The dynamic code based on the parameters of time is just effective and disposable within a given time, so as to be high in security. The coded lock control system gets the clock information of the code generator through the dynamic code, and compares the clock information with the system clock of the coded lock, thus synchronizing the two clocks through the analysis and the compensation of the deviations of the clocks, and ensuring the overall system to run reliably for long.

A method for removal of deposits such as hydrate plugs from a pipeline is provided including inserting a thruster pig connected to a return flow line into the pipeline The pig is then advanced forward into the pipeline by pumping a thrusting fluid into an annulus between the pipeline and the return flow line while removing deposits continuously or intermittently and returning flow as appropriate from ahead of the pig through the return flow line. The return flow line is then disconnected from the pig after sufficient deposit removal and retrieved from the return flow line. Next, the pig may then be transported through the pipeline by the pipeline fluid to a pig receiving location once the pipeline flow is resumed.

The invention provides an ultrasonic location system and an electronic device with a locating function. The ultrasonic location system is arranged in the electronic device in an integrated mode and comprises an ultrasound generating element, at least two ultrasound receiving elements and a control unit, wherein the ultrasound generating element is used for generating ultrasound waves, the ultrasound receiving elements are used for receiving reflected waves generated when the ultrasound waves meet a reflector, and the control unit is used for determining the spatial position and / or the moving speed of the reflector according to the frequency shift and / or the delay of the reflected waves. The ultrasonic location system and the electronic device with the locating function reduce requirements for an application environment.

The invention discloses a phase-change hydraulic fracturing technology. The technology includes the steps that firstly, clean water or conventional fracturing fluid is injected to a stratum, so that the stratum cracks; secondly, non-phase-change liquid M and phase-change liquid N are placed in different liquid mixing tanks and injected into a shaft at the same time, wherein the injection volume ratio of the liquid M to the liquid N is (0-0.7):(0.3-1); thirdly, displacement fluid is injected into the shaft, so that the non-phase-change liquid M and the phase-change liquid N in the shaft completely enter a reservoir; fourthly, well shut-in and pressure building are conducted for 30-200 min, so that solid-phase matter generated by the phase-change liquid N is laid in cracks; fifthly, decompression is conducted, and construction is finished. The liquid M is conventional fracturing fluid, seawater, stratum water or ground fresh water, and the liquid N is composed of a super-molecular construction unit, surfactant, inorganic salt, oxidant and the like. Channels and ditches for underground oil gas seepage can be formed without solid supporting agents, flow guide capacity of hydraulic fracturing cracks is greatly improved, and the technology is simple, safe and efficient in construction operation.

The invention provides a method for updating face recognition images and a device. The method comprises the following steps: acquiring a first face image; comparing the consistency between the first face image and a second face image stored; if the first face image and the second face image are identical with each other, the first face image is stored, and the second face image is updated by the first face image. By keeping updating the face images of users, the method ensures that impacts of changes of face outlines on recognition are reduced, and the recognition accuracy is improved.

The invention discloses a method of preventing a network from being attacked by using an ARP, and also the client terminal and server as well the system of the method; wherein, the methods on the client terminal comprise that sending request on obtaining the addresses list of a gateway to the server, wherein, the addresses list of the gateway is used for recording the IP address of the gateway and corresponding MAC address; making records on the addresses list of the gateway after receiving the addresses list of the gateway for the server responses; using the addresses list of the gateway to renew the ARP cache of a local host computer. The methods applied in the server include: making records of the gateway IP addresses and corresponding MAC addresses inside the addresses list of the gateway preset by the server; sending the preset addresses list of the gateway to the host computers of consumers so as to renew the ARP cache after receiving the requests on obtaining the addresses list of the gateway from the host computers of the consumers. Through adopting the technical scheme of the utility model, the behaviors using ARP to attacking the network can be easily and flexibly as well as effectively avoided.

This is a cable stayed steel truss module structure and its construction method. At least two steel trusses are installed to support a high building to be grouted with connecting steel held in between. At least four truss cables are stayed between the building and the steel truss. Beam is installed on the top of the truss with falsework module fixed to the beam.

The embodiment of the invention discloses system, device and method for a load balancing, wherein the method comprises the following steps: a network exchanger is used for obtaining the characteristic information in a user data flow; when the characteristic information satisfies a predetermined first load balancing strategy, the received data message in the user data flow is forwarded to a plurality of server units connected with the network exchanger according to the first load balancing strategy, so as to realize a low-layer load balancing; and when the characteristic information satisfies a predetermined second load balancing strategy, the received data message is sent to a piece of load balancing equipment, then the data message is forwarded to the plurality of server units connected with the network exchanger according to a forwarding strategy determined by the load balancing equipment, so as to realize a high-layer load balancing. The system, device and method for a load balancing disclosed by the method are suitable for the field of network management system.

The invention discloses an electronic cigarette atomizer and an electronic cigarette. The electronic cigarette atomizer comprises a tar guide cavity communicated with a tar guide pipe. The tar guide cavity is communicated with one end of a heating cavity. A heating device is installed in the heating cavity. The other end of the heating cavity is communicated with an ultrasonic device. The ultrasonic device is communicated with an atomization cavity. The atomization cavity is communicated with a smoke mixing cavity. The smoke mixing cavity is communicated to the atmosphere through an air inlet duct. The smoke mixing cavity is communicated with a smoke duct in a cigarette holder. The electronic cigarette atomizer firstly heats tobacco tar to be at critical temperature through the heating device and then atomizes the heated tobacco tar through the ultrasonic atomization device. In the mode, the electronic cigarette atomizer is simpler in structure, lower in requirement for tobacco tar, wider in application range and easy to industrialize. Aerosol particles in smoke are more uniform in particle diameter, taste is better, and a condensation phenomenon can be well prevented.

The invention discloses a non-polar two-line system communication circuit which aims to solve the technical problem of preventing the occurrence of errors in the process of connection. The invention adopts the following technical scheme: a non-polar two-line system communication circuit comprises a host terminal and a slave terminal, wherein the host terminal is connected with the slave terminal and controls the slave terminal, the inside of the host terminal is provided with a host-terminal sending and receiving line module, the inside of the slave terminal is provided with a slave-terminal sending and receiving line module, and the host-terminal sending and receiving line module is connected with the slave-terminal sending and receiving line module in a non-polar two-line system connection mode. Compared with the prior art, an indoor unit controller for air conditioners supplies power for a temperature control device for air conditioners and carries out communication with the temperature control device by a power line, and the connection mode is a non-polar connection mode; and two lines can simultaneously carry out power supply and communication, thereby solving the problem that two lines simultaneously supply power and transmit signals, and reducing the demands on leads and installation.

The invention provides a method of preparing an MAX phase ceramic coating by using hot spraying. The method comprises the steps that an MAX phase ceramic material is dispersed in a solvent to form MAX phase suspending liquid, and then the MAX phase suspending liquid is sprayed to the surface of a matrix via a nozzle to form the coating. In a spraying process, the solvent exerts the functions of reducing heat and cooling MAX phase powder, so that inhibition to decomposition of the MAX phase powder is facilitated, and a steamy atmosphere formed by solvent evaporation assists metal elements in the MAX phase powder to form an oxidation film to further inhibit the decomposition of the MAX phase powder simultaneously. Therefore, compared with the traditional spraying MAX phase powder, the purity of an MAX phase in the coating can be increased with the adoption of the spraying method.

An improved diesel operation system employs a lightly diesel oxidation catalyst (DOC), preferably with a platinum containing fuel borne catalyst (FBC) in the fuel. The DOC is at least partially lightly catalyzed with precious metal catalyst, e.g., platinum group metal, having a metal loading of from about 3 to 15 grams per cubic foot to minimize formation of NO₂ in the exhaust gas. Preferred fuel borne catalyst levels will be low, e.g., from 0.05 to 0.5 ppm for platinum and 3 to 8 ppm for cerium and/or iron, thereby providing effective engine out emissions reductions without discharging excessive amounts of metal catalysts or NO₂ to the atmosphere.

The scene map generation method based on the depth camera comprises the following steps: reading a video stream image frame of the camera; obtaining a key frame of the video stream image frame, determining a pose transformation matrix of the key frame relative to an initial key frame, carrying out loopback detection on the key frame, adjusting the pose of the corresponding key frame according to aloopback detection result, and constructing a three-dimensional point cloud map according to the adjusted pose of the key frame. According to the method, only a small number of effective key frames need to be collected, the requirement for equipment hardware can be greatly reduced, the three-dimensional point cloud map is constructed in a loopback detection mode, and the deployment cost of a navigation scheme on the robot can be remarkably reduced on the premise that the positioning and navigation requirements in a three-dimensional space are met.

A composition comprising at least one silane possessing an unsaturated organic function; at least two free radical initiators, and a process for producing silane-crosslinked thermoplastic polymers comprising providing a cross-linkable compound; at least one thermoplastic polymer; and, reacting the crosslinkable compound under reactive mechanical-working conditions and exposing the crosslinkable compound to moisture to provide crosslinked thermoplastic polymers.

The invention relates to a starting method of a modular multi-level flexible direct-current transmission converter. The method comprises the following steps: realizing switch between soft start and a normal operating circuit through on-off of a circuit breaker and a line contactor; in the soft start process, cutting off the highest direct current voltage of a sub module at a certain frequency to ensure even charge of a bridge arm sub module; and ensuring that the voltage of the bridge arm sub module reaches a system operational rated value by selecting the cutting number of the sub modules so as to create condition for the system for smooth switch from the soft start process to the control mode. A single bridge arm in the control stage is used as a unit control unit, and even charge control of the sub module is carried out for each bridge arm at the same time. Thus, charging is easier to realize without detecting the current of the bridge arm. The soft start process is remarkably shortened, and the even charging degree of the sub modules is very high.

The invention discloses a robot system, which changes the application way of a firefighting robot. The robot system is characterized in that: on the basis of making maximum use of the conventional mature robot technology, the utilization of the robot with the maximum efficiency is realized by reforming the working environment of the robot reasonably. Leading lines and position identifiers are added into the working environment to realize the simplification of a two-dimensional working map, and a robot working navigation map is established to realize high-efficiency movement and positioning of the robot; and the association of the robot and a fire warning system with an image monitoring system is established to realize automatic firefighting and manual remote control and improve the application flexibility of the robot. In the system, the novel robot working modes expand the application range of the functional firefighting robot, reduce the application cost of the robot, and realize the systematic robot application. If the robot working navigation map mode and the manual linkage mode are recognized nationally, a future firefighting mode is expected to be changed by the large-scale application of the robot.

The embodiment of the invention discloses a ghosting effect realization method and device. The realization method comprises the steps of determining target objects which are picture elements needing to realize a ghosting effect, copying predetermined number of the target objects to obtain copy objects, arranging the obtained target objects and the copy objects according to the motion tracks of the target objects, setting transparency of the copy objects from near to far and from high to low according to the copy objects and the target objects, and displaying the target objects and the copy objects. In the process of producing the ghosting effect, a whole image frame does not need to be stored in a render buffer area, and transparency hybrid processing on the whole image frame is not necessary; therefore, data processing resources and storage resources which are needed by the realization of the ghosting effect can be reduced, the requirements for hardware are reduced, and a smooth visual effect can be achieved in equipment with lower performance hardware.

The present invention discloses an energy-feedback type power quality disturbance generating device, which relates to a power quality disturbance generating device. The device comprises a harmonic source (1), a feedback link (2), a middle direct current capacitor (3), a control terminal (4), a first LCL filtering link (5), and a second LCL filtering link (6). The control terminal (4) adopts a DSP controller to realize that a control signal which is generated according to the setting of a user controls the harmonic source to partially generate current disturbance. The harmonic source and the feedback link are cascaded via the middle direct current capacitor to form an AC-DC-AC topological structure so as to realize power feedback. The alternating current side of the harmonic source is connected with a power network via the first LCL filtering link. The alternating current side of the feedback link is connected with the power network via the second LCL filtering link. The device is capable of simulating harmonic current, active current, inductance reactive current or capacitive reactive current of a plurality of combination frequencies, and the device is capable of simulating various working conditions of a plurality of nonlinear loads such as electric arc furnaces, medium frequency furnaces, welding machines and frequency converters, etc.

The invention provides a vertical take-off and landing model aircraft unmanned aerial vehicle. The vertical take-off and landing model aircraft unmanned aerial vehicle is provided with a rotatable screw propeller, an undercarriage and a solar charging system, overcomes the defects of the conventional model aircraft unmanned aerial vehicle, can vertically take off and land in situ, reduces the requirements on the airfield, can quickly fly at the speed of a flying wing type unmanned aerial vehicle and can also suspend like a helicopter; the undercarriage can protect the body during landing to prevent collision with the ground, and the solar charging system can prolong the duration of flight. In addition, the body is a light wood thin plate framework; a body shell is formed by additionally coating epoxy resin on carbon fiber cloth and is then assembled with the framework; the structure has the beneficial effects that the overall weight of the unmanned aerial vehicle model is reduced, meanwhile the body strength is improved, the decoration to the outer surface is facilitated and a more attractive appearance is achieved.

The present invention provides a relay fault detection circuit and a detection method thereof. The circuit comprises a power supply, a load, a master positive relay Kmp, a pre-charge relay Kp, a master negative relay Kmn and a sampling circuit module; the sampling circuit module includes a first sampling loop, a second sampling loop and a second sampling circuit which is connected in series with the pre-charge relay Kp; one end of the first sampling loop is connected between the power supply and the master positive relay Kmp, and the other end of the first sampling loop is connected between the load and the master negative relay Kmn; and one end of the second sampling loop is connected between the load and the master positive relay Kmp, the other end of the second sampling loop is connected between the power supply and the master negative relay Kmn, and the first sampling loop and the second sampling loop are respectively conducted to detect sampling resistance R1 and the voltages of the first sampling loop and the second sampling loop so as to determine whether the master positive relay Kmp, the pre-charge relay Kp and the master negative relay Kmn are adhered or jammed or not.

A general wiper connecting apparatus (1) comprises: a main body (10) formed with a penetrated hole (13) allowing a pivotal shaft (2a′) of a wiper driving arm (2, 2′, 2″) to be received; a head portion (20) formed with a positioning groove (21) at the location connected with the main body (10) for positioning the wiper driving arm (2, 2′, 2″); a tail portion (30) formed with a pair of elastic clamping pieces (31) for latching the wiper driving arm (2, 2′, 2″); and a pair of side boards (40) disposed at two sides of the main body (10), and respectively formed with a through hole (41) corresponding to the penetrated hole (13), and an insertion slit (400) is respectively formed between the pair of side boards (40) and the main body (10) for allowing the wiper driving arm (2, 2′, 2″) to be inserted.

The invention provides a preparation method of silicon dioxide aerogel, which can reduce the cost and prolong the service life of equipment. The preparation method comprises the following steps: (1) preparing sol; (2) gelatinizing silicon sol; (3) alcoholizing; (4) carrying out the surface hydrophobic modification; (5) drying at the normal pressure. According to the preparation method of the silicon dioxide aerogel, industrial waste slag-coal powder which is low in price and rich in resource is used as a raw material to substitute an organic silicon source high in price, so that the application cost is greatly reduced; the normal-pressure drying substitutes the supercritical drying, so that on one hand, the requirement of the entire process on the equipment is greatly lowered, the safety performance is greatly improved, and on the other hand, the operation cost is greatly reduced; moreover, the corrosion to the equipment is reduced, the requirement on the equipment is greatly lowered, the water washing is not needed, the energy consumption is reduced, the water resource is saved, and more energy conservation and environmental protection can be realized.

The invention discloses an automatic measuring device for heights, body weights and foot lengths of persons. The automatic measuring device comprises an electric scale (internally provided two sensors), a backdrop, a singlechip unit board (internally provided with three singlechips and a wireless interface), an ultrasonic sensor and a support rod, wherein the electronic scale is positioned at the bottom end of the device; the backdrop and the singlechip unit board are arranged on the electronic scale by using the support rod; and the ultrasonic sensor is arranged at the top end of the device. The automatic measuring device disclosed by the invention can be used by public security organs to acquire information about the heights, the body weights and the foot lengths of the persons; after criminal suspects stand on the automatic measuring device, the automatic measuring device can automatically measure the heights, the body weights and the foot lengths and measurement data automatically enter a software system of a computer. In the whole measuring process, manual operation is avoided or manual entry is not needed; and the automatic measuring device is simple and quick for operation and has low requirement on operators.

The invention relates to a relay light-amplified laser ranging method and a relay light-amplified laser ranging device for a cooperative target, which are characterized in that: a ranging laser signal which is incident to the cooperative target is subjected to relay light amplification by using a light amplifier, and the amplified light signal is returned to a ranging station, wherein the cooperative target consists of an information processing and control center, a coarse sighting mechanism, an optical antenna, a spectroscope, an image sensor, a space light-to-light waveguide coupling module, an optical waveguide, the light amplifier, a return light beam sighting module, a light incidence/return combiner, a pyramid prism and a shutter. By the laser ranging method and the laser ranging device for the cooperative target, the defect of insufficiency in transmitted laser power during remote laser ranging can be overcome, the required laser power is quadratisch of distance instead of biquadrate of the distance, and the measuring distance can be increased obviously, so the laser ranging method and the laser ranging device are particularly suitable for the laser ranging of the remote cooperative target.