248results about How to "Easy to build" patented technology

The present invention relates to the usage pattern, commonly found in many software applications, of defining sets of objects based on object attributes. A specifically designed set definition language for defining sets, called SDL, is described and a software system that implements this language efficiently on top of a standard relational database management system (RDBMS) is presented. The unique features of the SDL language are the implicit constraints that are enforced on the relational data that belong to the objects. Unique to the SDL system is also the logical metadata of dimensions that enables the SDL system to enforce these constraints across relations. The SDL system utilizes several optimization techniques to enable efficient implementation on top of RDBMS. It is also shown how the SDL language and the SQL language can be merged with bidirectional inlining using syntactic gates. Query composition tools are also described that facilitate the creation of SDL expressions.

The invention provides a complex background real-time alternating method based on background modeling and energy minimization, comprising the steps of: firstly, segmenting a current frame image into a foreground pixel set, a background pixel set and an unknown label pixel set by using a provided fusion background model; secondly, constructing a target energy function according to the color and contrast information under a dynamic diagram cutting frame, designing a data item of the fusion background model based on time continuity information and a contrast smooth item based on a local two-value mode, solving two-value labels of all pixels by using a diagram cutting algorithm minimization energy function; and seamlessly fusing segmented foreground targets into a virtual background by adopting postprocessing methods of boundary smooth, alpha value estimation and the like. Experimental results show that the method can better segment the targets in the complex background in real time and really synthesize the segmented targets into the virtual background. The invention has the characteristics of automatically segmenting the complex background in real time and replacing the segmented complex background into the virtual background to obtain a virtual effect sequence diagram with high quality.

Provided is a fingerprint database generating method and device for wireless location. Signal strength is estimated by using access points on a numerical map, position coordinates of grid points, and a radio wave attenuation model so as to generate a fingerprint database. A simulation error is computed based on actual survey data measured in the real space, and the estimated signal strength is corrected by using the computed simulation error to thus generate a fingerprint database.

The invention discloses a high-precision time interval measurement device, which is used for reshaping signals generated by blocking devices by means of a signal conditioning module based on a phase-modulated high-precision time interval measurement method into square wave signals recognizable by an FPGA (field programmable gate array). In the FPGA, the square wave signals standing for start and stop are integrated into a pulse signal with a certain pulse width by a trigger. A phase-locked loop is constructed in the FPGA, multichannel clock signals with fixed phase differences are obtained after frequency multiplication, debounce and phase shift of an external clock, and the clock signals are used for driving an FPGA interior counter to perform pulse counting so as to obtain a group of count values. The count values are transmitted to a single chip microcomputer for computation by the FPGA, and computed results are transmitted to a display module to complete display of the time interval measurement values. The high-precision time interval measurement device realizes precise measurement and real-time display of time interval, principle errors are eliminated, monolithic integration and flexible extension in the FPGA are easy, and the device is used for speed measurement of high-speed movement.

The invention discloses a modular ten-freedom-degree biped walking robot. The modular ten-freedom-degree biped walking robot is composed of six joint modules, thigh and shrank connecting rods and two feet absorbing impact. The left leg and the right leg are respectively provided with three joints, namely, the hip joint, the knee joint and the ankle joint, wherein each hip joint and each ankle joint respectively have the pitching freedom degree and the swinging freedom degree, and each knee joint only has the pitching freedom degree. The joint modules are of two types. The joint modules having the two freedom degrees are called cross joints. The joint modules having the single freedom degree are called linear joints. The two driving motors of each hip joint are perpendicular to each other in space. The two driving motors of each ankle joint are perpendicular to each other in space. All pitching driving motors are parallel. The modular ten-freedom-degree biped walking robot has multiple walking modes including walking up and down stairs, walking on the rigid ground and walking on the soft ground. The modular ten-freedom-degree biped walking robot has the advantages that active driving is achieved, the structure is simple, control is easy, the cost is low, the environmental adaptability is high, and energy consumption is small and can be widely applied to relief work, carrying, medical science and other aspects.

The invention belongs to the field of measurement and automation, and in particular relates to a method and system for testing multi-channel galvanic corrosion. By a test method for performing high speed switching of current measurement and potential measurement of each micro electrode in the micro electrode array and measurement of all micro electrodes to be measured, galvanic corrosion current and galvanic corrosion potential data of each micro electrode are extremely high in synchronism; the synchronism of the galvanic corrosion current and the galvanic corrosion potential data of different micro electrodes is also greatly improved; and information of a galvanic corrosion process and a dynamic change of the information can be accurately obtained. A hardware test system consists of a modular instrument adopting a PXI bus technology, is easy to construct, can be flexibly reconfigured and has high integration degree and reliability. According to a software system compiled by a graphical development environment LabVIEW, functions of the hardware system can be configured according to requirements; and a test logic of a background and a human-machine interaction interface of a foreground can be customized.

A container for a domestic appliance, comprising: guides for lateral movement of the container with respect to a domestic appliance; a device for one or more of vertically adjusting and inclining of the container, including supporting members associated with the container; supporting brackets connected to and extending upwards from the guides and supporting the container; and index stops on one of the supporting members an supporting brackets and index notches on one of the supporting members and supporting brackets, the index stops cooperating with the index notches to one or more of vertically adjust and incline the container.

A method of acquiring rights to content to be burned to a CD, comprising defining a first content set; defining a second content set comprised of content selected from the first content set whose content attributes match those selected by a user; identifying as a third content set that content in the second content set for which DRM rights sufficient to permit the content to be burned to CD are not currently possessed; allowing a user to authorize obtaining rights for members of the second content set for which rights permitting the content to be burned to CD are not currently possessed; obtaining rights which allow at least a subset of the third content set to be burned to CD; and, allowing the content defined in the second content set and for which appropriate rights have been obtained to be burned to CD.

A coalbed methane production method comprises acoustic radiators strategically placed within exhaust boreholes that sonically vibrate the immediate wall areas. The gas volume output that can be realized by an exhaust well is mainly determined by the penetrability of the inside faces of the borehole. Such inside faces behave like a filter matrix, and the important areas involved in restricting the gas flow the most are not more than a few diameters away from the exhaust well in the collector zone. Therefore, the more permeable that such immediate area around the exhaust borehole can be made, the higher will be the volume of gas produced. Strong sonic vibrations from the acoustic radiators positioned in a drillstring shake open spaces in the media for the gas to flow out and be collected. The media experiences a type of elastic collapse under the differential pressures that are exerted the strongest near the borehole opening.

The invention provides a control method and an electronic device. The control method is applied to one or more electronic devices which are used for map building. The control method comprises the steps that (1) a first object in the environment where the electronic device is located is detected; (2) a sensor of the electronic device obtains the orientation information of the first object under the situation that the first object is detected; (3) the electronic device sends a request used for obtaining the identification information of the first object to a user; (4) the electronic device receives response information, comprising the identification information of the first object, to the request from the user; (5) the electronic device carries out map building according to the orientation information of the first object and the response information. Due to the fact that the control method and the electronic device can build a map according to the orientation information, obtained by the electronic device itself, of an object in the environment where the electronic device is located, and the identification information received from the user, building of the map can be convenient, cost is reduced, and real-time location and navigation are facilitated.

A concrete slab system with self supported insulation and method of making same which comprises a poured-in-place concrete slab with an insulation board held by metal or plastic C channels. The insulation is held in place on both sides by C channels. The C channels are in turn embedded into the concrete slab and as a result, the insulation is attached to the slab itself. The embedded C channels serve not only to support the insulation board but also as concrete form-work, therefore, allowing a variety of ceiling options on the under-side of the panels, while providing support for the reinforcing steel on the upper side of said panels. This system may be used for either an inclined or flat slab design, roofs or intermediate floor applications.

The invention discloses a cutting device of high-precision optical fiber length, which is characterized by comprising an optical fiber cutter and a high-precision optical fiber displacement platform which comprises an optical fiber cutter stationary fixture, an optical fiber propelling platform and a high-precision propelling reading mechanism; the optical fiber cutter is tightly fixed at the left side of the high-precision optical fiber displacement platform through the stationary fixture, and comprises a cutter blade and a pressing broken arm matched with the cutter blade to work; the optical fiber propelling platform is arranged at the right side of the high-precision optical fiber displacement platform by the high-precision propelling reading mechanism, and can drive the optical fiber which is to be cut with a fixed upper part, to precisely move to the direction of the optical fiber cutter under the action of the high-precision propelling reading mechanism. The device overcomes the defects in the prior art, and can realize cutting precision at 0.01mm magnitude.

A carrier for pipette tips, with

• • a frame, featuring four side walls,
  • a plate with a plurality of holes for inserting pipette tips, and
  • means for detachably connecting the frame and the plate,
  • that have contact surfaces on the upper edge of the frame and on the underside of the plate, which touch each other when the plate is put onto the frame, and
  • that have guiding elements directed transversally to the contact surfaces on the frame and on the plate, which engage into each other with lateral clearance when the plate is put onto the frame.

An air filter device to filter fresh air for occupants of a vehicle is disclosed. The device includes a generally circular bottom base unit including a perimeter mounting portion to retain said device in an air conduit. The perimeter mounting portion includes a pair of mounting lips separated by an outwardly extending mounting groove. The lips resiliently flex over a rim formed in the vehicle to position the device in place. Extending from the base unit is an air filter which is sized and shaped to fit into a cavity located within a blower motor assembly. In this manner the device can be retrofit into a standard vehicle to provide air filtration without requiring extensive modification of the ducting and the like.

The invention discloses an antibiotic resistance maker-free bacillus subtilis constructing method and a method for screening bacillus subtilis with an inactivated target gene. The method comprises the steps of: constructing two homologous exchange segments by using bacillus subtilis 168 as a starting strain; constructing a controllable lysine auxotroph strain BS-PS by two dual exchange processes on the basis of a homologous recombination principle; constructing a universal integrated mutation carrier PLC by using a colibacillus clone carrier pMD19-T as a framework; and constructing an integrated carrier PLC-InprE of the insertional inactivated nprE by using the neutral protease nprE of the bacillus subtilis as the inactivated target gene and by adopting an insertional inactivation strategy based on a programmable logic controller (PLC), and converting the PLC-nprE into BS-PS, controlling lysine to synthesize a screening marker by a single exchange process and a spontaneous single exchange process and screening protease insertional inactivation mutant strains by combining the result of polymerase chain reaction (PCR) verification.

The invention provides a precise laser polishing device and a method thereof. According to the method, a glass pane coated with micro-nano particles is attached to the surface of a work-piece to be polished, the micro-nano particles are located between the glass pane and the work-piece to be polished, a pulsed laser device emits pulse lasers, focused pulse light beams radiate the glass pane coated with the micro-nano particles, the micro-nano particles serve as a focusing lens, energy around the micro-nano particles is enhanced after the lasers are focused by the micro-nano particles, the surface of the work-piece to be polished protrudes or the tip part of the work-piece to be polished gets fused, and therefore the polishing effect is realized. According to the precise laser polishing device and the method thereof, the pulse lasers converge and act on the surface of material through the micro-nano particles, and the laser polishing technology within the micro-nano scale range is realized through the local field enhancement effect of the micro-nano particles. The polishing device is convenient to construct, simple and practicable; for work-pieces with complex shapes and appearances to be polished, the polishing effect is still good through the method.

A subscriber wireless access system equipped with customer stations wirelessly connected to base stations and accommodating communication terminal devices in the customer stations. The system is provided with at least one exchange for connecting the base stations with a virtual dedicated line network for enabling customer stations wirelessly connected to different base stations to be interconnected via a virtual dedicated line network. The exchange includes table information assigned to the customer stations with virtual network connection information allocated for connected the customer stations, means responsive to receipt of data from a customer station via a subordinate base station for, with reference to the table, sending the data through the virtual network to another base station, and means responsive to receipt of data through the virtual network for, with reference to the table, converting the data to customer station identification information and sending the data to a subordinate base station.

The invention discloses a period scanning optical delay line based on the spiral surface reflector of a tilted parabolic type bus. The period scanning optical delay line based on the spiral surface reflector of a tilted parabolic type bus comprises: the spiral surface reflector of the tilted parabolic type bus, a back reflector, and a drive motor. The spiral surface reflector of the tilted parabolic type bus comprises the spiral surface reflector of a convex surface type tilted parabolic type bus and the spiral surface reflector of a concave surface type tilted parabolic type bus; the back reflector is used for controlling light beams to be reflected by the period scanning optical delay line of the spiral surface reflector of the tilted parabolic type bus along the original path. The period scanning optical delay line based on the spiral surface reflector of the tilted parabolic type bus has the advantages that: the spiral surface reflector of the tilted parabolic type bus and the back reflector are combined to enlarge the linear delay time, and eliminate the translation motion of a one-way spiral surface delay line on reflected light to lead the delay line to be simple and compact in structure.

The invention relates to a method for routing a data centre network system. The data centre network system comprises row head exchangers, line head exchangers and access exchangers, wherein the access exchangers are arranged in the form of a matrix; at least one row head exchanger is deployed at the row head of each row; at least one line head exchanger is arranged at the line head of each line; and servers are connected with the access exchangers which are connected with all row head exchangers in the rows of the access exchangers and all line head exchangers in the lines of the access exchangers. In the invention, the servers in the same sub network communicate with each other through the access exchangers connected with the servers; and the servers of different sub networks communicatewith each other through the access exchangers, the row head exchangers and the line head exchangers. The routing method provided by the invention has the advantages of simplicity, high efficiency, convenience for realization through hardware and high routing speed.

Pre-shipment data includes, in addition to product data representing features of the products P, data that associate product identification data for identifying each of the products P included in the product data with package identification data for identifying a carton C containing the products P. A management warehouse system 3a assumes that products corresponding to the product identification data associated with the package identification data have arrived if the package identification data included in barcode 52 scanned by a reader device exist in the pre-shipment data transmitted from the management warehouse system 3a.

The invention discloses a lung texture recognition method based on deep neural network extraction appearance and geometric features, which belongs to the field of medical image processing and computervision. 217 lung 3D computed tomography (CT) images are used as source data, a plurality of groups of data sets are obtained through preprocessing, and each group of data comprises a CT image small block, a corresponding geometric information image small block and a category label. A dual-channel residual network framework is built, the CT image small block and the corresponding geometric information small block are used as input of each channel respectively, the appearance information and the geometric information of the lung textures are learnt respectively through the dual-channel residualnetwork, the information is effectively fused, and the recognition rate is thus high. Besides, the provided network has a distinct structure, and building and realization are easy.

A method for a establishing wireless distribution system link between two access points includes the steps of: providing an input module for each access point; receiving a first input to enter a master mode by an input module of a first access point, and transmitting a broadcast frame by the first access point; receiving a second input to enter a slave mode by an input module of a second access point, and scanning the broadcast frame by the second access point; transmitting a request frame from the second access point to the first access point; and transmitting an acknowledgement frame from the first access point to the second access point. An access point relating to the method is also provided.

The invention discloses a nondestructive testing robot for an excavator. The nondestructive testing robot for the excavator comprises a robot body and a testing system, and is characterized in that the robot body comprises six joint modules and two electromagnetic chuck modules, the joint modules include two I-shaped joint modules and four T-shaped joint modules, the four T-shaped joint modules are sequentially serially connected to form two end portions, the two I-shaped joint modules are movably connected with the two end portions respectively and are movably connected with the two electromagnetic chuck modules respectively, the testing system comprises an ultrasonic probe, a data acquisition unit and a remote controller, and the ultrasonic probe is connected with one of the electromagnetic chuck modules via a rotating shaft. The nondestructive testing robot for the excavator is excellent in movement performance, high in testing efficiency and applicable to nondestructive testing of ferromagnetic object surfaces, and has the advantages of safety, reliability and practicality.

The present invention provides an image fusion and target tracking system based on a multi-core DSP. The image fusion and target tracking system includes a centered optical system platform, a communicating module, an image preprocessing module, an image fusion processing module, a target enhancement processing module, a target tracking module, and a computer. The communicating module, the image preprocessing module, the image fusion processing module, the target enhancement processing module, and the target tracking module are realized through software programming in five processors of the DSP. The system can rapidly process images in real time, and feed back a processing result to the computer timely for displaying the processing result in real time.

The invention discloses a base-station radio-frequency testing system applicable to an LTE (Long Term Evolution) system and a testing method. The base-station radio-frequency testing system is connected with a base station to be tested and is used for testing radio-frequency data of the base station to be tested. The base-station radio-frequency testing system comprises a frequency-spectrum analyzer, a channel simulator, a useful signal generator, an interference signal generator, a broadband signal generator, a power meter, a main control computer and a radio-frequency box, wherein the main control computer is connected with the frequency-spectrum analyzer, the channel simulator, the useful signal generator, the interference signal generator, the broadband signal generator, the power meter and the radio-frequency box; the radio-frequency box is connected with the frequency-spectrum analyzer, the channel simulator, the useful signal generator, the interference signal generator, the broadband signal generator, the power meter and the base station to be tested; the power meter is connected with the broadband signal generator; the radio-frequency box comprises a switch, a load, an isolator, a coupler, an attenuator, a combiner, a multi-frequency combiner and a radio-frequency interface.

The invention discloses an ecological ditch for sewage treatment and a construction method and use thereof. The method comprises: (1) constructing a branch ditch: leveling the banks and bottom slope of the branch ditch, dividing the branch ditch into sections by constructing ecological intercepting base weirs at intervals at the bottom of the ditch, growing thick and high plants on the banks of the first section, close to farm land drainage outlets, of the branch ditch, planting aquatic plants at the bottoms of the other sections of the branch ditch, and growing 2 to 3 rows of antifouling plants on the slopes of the other sections; and (2) constructing a main canal: leveling the side slopes and bottom of the main canal, paving the entire leveled side slopes with hollow bricks filled with pebbles, planting emergent aquatic plants on the flooded parts of the side slopes, and planting landscape plants with strong roots on the upper parts of the side slopes, wherein the buried depth of the bricks is equal to the difference between the actual thickness of the hollow bricks and the thickness of the filled pebbles. The ecological ditch construction by the method is suitable for treating domestic sewage in rural areas and waste water from agricultural production activities. The construction method of the ecological ditch is simple, the daily maintenance and repair of the ecological ditch are simple, the cost of the ecological ditch is low, and the ecological ditch is easy to promote and use.

In the invention, when needing to play the warning tone, the DTMF number combination corresponding to the warning tone file is played, and according to the detected DTMF number combination, deciding the playing of warning tone file is correctly played.

The invention provides an infrared and visible light fusion method, and belongs to the field of image processing and computer vision. The invention adopts a pair of infrared binocular camera and visible light binocular camera to obtain images, relates to construction of a fusion image pyramid and a visual saliency enhancement algorithm, and is an infrared and visible light fusion algorithm utilizing multi-scale transformation. According to the invention, the binocular cameras and NVIDIATX2 are utilized to construct a high-performance operation platform, and a high-performance solving algorithmis constructed to obtain a high-quality infrared and visible light fusion image. According to the invention, different principles of infrared and visible light camera imaging are utilized, an image pyramid is constructed by designing a filtering template, image super-resolution and significant enhancement are carried out after image information under different scales is obtained, and finally real-time performance is achieved through GPU acceleration. The system is easy to construct, and input data acquisition can be completed by using the infrared stereo binocular camera and the visible lightstereo binocular camera respectively; and program is simple and easy to implement.

The invention discloses a simple construction method of a low-dimensional organic frequency-doubling crystal; a host-guest inclusion coordination self-assembly strategy is utilized, guest molecules are induced to be arranged in a non-centrosymmetric structure, and inclusion complex molecules are aggregated to form the low-dimensional organic frequency-doubling crystal by an anti-solvent diffusion method. The construction method particularly comprises three steps: synthesis of the inclusion complex; controllable synthesis of the low-dimensional organic crystal material, and characterization of second-order nonlinear optical properties of the low-dimensional organic crystal material. The construction method provided by the invention is simple in process, convenient to operate, and friendly to the environment, and has universality on synthesis of similar low-dimensional organic frequency-doubling crystals. The construction strategy can greatly broaden the material selection range of the second-order nonlinear optical material. The material is expected to be used as a micro/nano light source device in an integrated nano photonic circuit.

The invention discloses a core converter for building a bipolar DC microgrid. The core converter is taken as an interface converter of a high-voltage AC distribution network and a low-voltage bipolar DC microgrid. The core converter comprises three parts of an input filter, a rectifier stage and an isolation stage; and a modular design is adopted. An H-bridge cascade structure is adopted by the rectifier stage; an improved three-port active full-bridge structure is adopted by the modular isolation stage; and output buses are correspondingly connected in parallel, thereby achieving matching of grid voltage and power at two sides of the converter. The invention further discloses a control method of the converter. Vector control of zero-sequence voltage injection is adopted by the rectifier stage; and voltage and current double closed-loop decoupling phase-shifting control is adopted by the isolation stage. According to the core converter, energy can be freely exchanged between the distribution network and the microgrid and between two buses of the bipolar DC microgrid; and functional integration of traditional power frequency transformer, rectifier and voltage balancer for building the bipolar DC microgrid is achieved, so that the building mode of the bipolar DC microgrid is optimized and the power density of building equipment is improved.