278results about How to "Improve processing accuracy" patented technology

A light-emitting diode which has a significantly high luminous efficiency and which can be manufactured at a reasonable cost by one epitaxial growth and a manufacturing method thereof are provided. The above method includes: preparing a substrate provided with convex portions on one major surface, the convex portions being formed from a dielectric substance which is different from the substrate and which has a refractive index of 1.7 to 2.2; growing a first nitride-based III-V compound semiconductor layer in a concave portion on the substrate; growing a second nitride-based III-V compound semiconductor layer on the substrate from the first nitride-based III-V compound semiconductor layer in a lateral direction; and growing, on the second nitride-based III-V compound semiconductor layer, a first conductive type third nitride-based III-V compound semiconductor layer, an active layer, and a second conductive type fourth nitride-based III-V compound semiconductor layer.

The invention relates to the field of double dynamic license plate identification, and provides a character confidence degree-based secondary license plate identification method and apparatus for the problems existent in the prior art. The method comprises the steps of performing character identification through template matching; giving out confidence degrees of identification results; for the results with relatively low confidence degrees, performing video super-resolution processing to obtain a frame of high-quality image; and based on the image, performing secondary license plate identification through a neural network classifier. According to the method and the apparatus, a license plate confidence degree threshold Th is preset; a picture is captured from a front end and license plate locating and segmenting are performed; characters of a license plate are identified; character identification confidence degrees and license plate identification confidence degree are calculated; when the character confidence degrees are all higher than the threshold Th, a license plate identification result is directly given, otherwise, the video super-resolution processing is performed; a frame of high-quality image is obtained by utilizing time domain information; and based on the image, the to-be-identified characters are input to classifiers for performing identification according to a position relationship of the to-be-identified characters, so that a final license plate identification result is obtained.

The invention relates to a method for processing the information of float cars under the structure of a parallel road network, which is mainly applied to the service field of the intelligent dynamic traffic information. The method comprises the steps: step 1, an SVM (Support Vector Machine) sorter is adopted to judge the matching relationship between sampling points and roads, and map match is carried out; step 2, according to map match information, a heuristic route deduction algorithm is adopted to deduce possible running routes of a car, and according to the properties of road chains contained in the routes, whether the car runs in the structure of a parallel road network or not is judged; the shortest running route or a main running route and a subsidiary running route are selectively output in different circumstances, and the reliability of average running speed information provided by the car is estimated; step 3, the D-S (Dempster-Shafer) evidence reasoning theory based on classification is adopted to merge road condition information provided by all the float cars passing by a certain road chain in a current period and consider the reliability of the road condition information in a merging process so as to obtain the mathematical expectations of the average speed and the travel time of the float cars passing by the road chain in the current period. On the basis that the data quality of the prior float cars is kept unchanged, the invention realizes the acquisition of the real-time dynamic traffic information under the structure of a parallel road network.

The invention relates to a crease type crash energy absorption box, belonging to the technical field of manufacturing a motorcar body structure. The invention is characterized in that a thin-wall tubeprovided with crease grains is used as a crash energy absorption box, and the crease grains lead the final deformation mode of a crash deformation section. Compared with an ordinary thin-wall tube, the invention is obviously characterized in that one thin-wall tube is divided into a plurality of modules along an axial direction, and diamond-shaped concave angles are respectively arranged on eachcorner region of each module at certain intervals along the axial direction, thereby forming the thin-wall tube with the crease grains. The invention has the effects and the benefits that by providingthe crease grains, the crash absorption box can simultaneously meet the requirements on high ratio energy absorption efficiency and low load uniformity factor; the shape of the crease of the invention is convenient to be formed, the surface of the entire structure is expandable, and the advantage is that the entire structure can be directly formed by processing one thin flat plate, thereby enabling the processing to be much more convenient, greatly reducing the production cost and increasing the accuracy of processing.

A shaping apparatus is equipped with: a beam shaping system having a beam irradiation section that includes a condensing optical system which emits a beam and a material processing section which supplies a shaping material irradiated by the beam from the beam irradiation section; and a controller which, on the basis of 3D data of a three-dimensional shaped object to be formed on a target surface, controls a workpiece movement system and the beam shaping system such that a target portion on the target surface is shaped by supplying the shaping material from the material processing section while moving the beam from the beam irradiation section and the target surface on a workpiece (or a table) relative to each other. Further the intensity distribution of the beam in the shaping plane facing the emitting surface of the condensing optical system can be modified.

Provided is a method for processing text containing emotion information. The method for processing the text containing the emotion information comprises the steps that the symbol content and / or the tone content in the text to be processed through text-to-speech transformation are searched for; the found symbol content and / or the found tone content are replaced by corresponding descriptors so that text to be processed can be formed; speech synthesis is carried out on the text to be processed. Processing is also carried out on the symbol content and / or the tone content in the text-to-speech transformation process, wherein the symbol content and / or the tone content are ignored in the text-to-speech transformation process in the prior art, the symbol content and the tone content are transformed into characters which can be recognized by a TTS processing engine through the descriptors, and the content finally obtained through speech synthesis also comprises the symbol content and the tone content. Therefore, loss of the content in TTS processing is avoided, accuracy of TTS processing is improved, and content misunderstanding by a listener is avoided.

The invention discloses a multi-beam phased array antenna mechanism. M radio frequency signals including K sub-signals can be input through a digital channel; one of N radio frequency signals is counted up by performing switching input on different time nodes by a switch network, and then different digital phase shifting values can be endowed for each sub-signal through a passive multi-beamformingnetwork, various radio frequency signals finally synthesize new M radio frequency signals through power division, thereby completely activating all units of the whole antenna array to form a high-gain antenna radiation beam. The high-gain beam is synthesized by K sub-signals. Through the scheme disclosed by the invention, the simulated multi-beam phased array design is adopted at the horizontal dimension, the digital multi-beam phased array design is adopted at a vertical dimension, thereby avoiding a way of realizing the multi-beam by adding the digital channel on the horizontal dimension inthe prior art, the power consumption of the whole antenna system can be effectively reduced, and the multi-beam can be realized under low power consumption condition so as to satisfy the access of multi-user.

The invention relates to a machine tool comprising frame (1) which has rigid side walls (2, 3) with linear guides (4, 5) on the top; compound slides (6, 11) which is movable and situated in or on the linear guides (4, 5) of the side walls, and which guides a processing unit (14) with a spindle head (15) at a front side so as to move the processing unit (14) vertically; and workpiece holding units (24-28) which are arranged in a gap between the side walls and may include a workbench (28) or a workpiece clamping device. One side wall (3) at the front side is shorter than the other side wall (2) for forming an enlarged access to a working space of the machine tool. The linear guides (4, 5) on the side walls (2, 3) of a machine frame (1) are aligned under an acute angle to a vertical center plane of the machine frame (1).

The invention discloses a dust collector for an electric tool and an electric tool with the dust collector. The electric tool comprises a processing head (5). The dust collector comprises a container (3) for collecting dust which is generated when the electric tool processes workpieces, wherein the container comprises an opening part (30), a connecting part (31) for connecting with the electric tool and a side part (32) for connecting with the opening part with the connecting part, wherein the opening part is provided with a dust collecting port (35) for propping against a workpiece surface to be processed so as to collect the generated dust in the container; the connecting part is provided with a hole (36) for the processing head to enter the container; and the dust collector further comprises a dust bag (2), wherein a discharge port (37) for connecting with the dust bag is formed in the container, and dust can enter the dust bag through the discharge port. The dust collector is provided a small quantity of parts, is simple in structure and convenient to operate, can be used as a separate accessory to be connected with various electric tools, and has a quite wide application scope.

The embodiment of the invention discloses a touch screen edge error touch prevention method and device and a mobile terminal and relates to the technical field of touch control. The method comprises the steps of detecting continuous projection time of a finger in a preset error touch prevention area; determining a touch event acting on the preset error touch prevention area, wherein the touch event happens after the continuous projection time exceeds a set first time threshold value; giving up responding the touch event if the continuous time of the touch event exceeds a set second time threshold value. The touch screen edge error touch prevention method in the embodiment can solve the problem that a palm of a user touches a touch screen of the mobile terminal in error to interrupt videos or games to affect the normal use of the user in the scene that the user holds the mobile terminal for a long time to watch videos or play games; thus, error touch events of the touch screen edges are avoided, and the effect of improving the processing accuracy of the screen touch events of the mobile terminal is achieved.

The invention discloses a message processing method and system, a message destination end device and a distributed message system. The method comprises the steps that Producer generates a message identifier for a message group to be sent, wherein the message identifier is used for uniquely identifying the message group; the message identifier and the message group are sent to Broker; Broker receives and stores the message identifier and the message group, wherein the message identifier and the message group are sent by Producer; when Producer determines that the message group needs to be sent again, the message identifier of the message group is acquired from the generated message identifier; the message identifier and the message group are sent to Broke; and when Broker determines that the message group corresponding to the message identifier is received again according to the received message identifier, deduplication is carried out on the received message group this time. According to the technical scheme of the invention, miscalculation rate can be removed on a Broker end, which improves the efficiency of message processing.

The present invention provides an etching liquid for a multilayer thin film containing a copper layer and a titanium layer, and a method of using it for etching a multilayer thin film containing a copper layer and a titanium layer, that is, an etching liquid for a multilayer thin film containing a copper layer and a titanium layer, which comprises (A) hydrogen peroxide, (B) nitric acid, (C) a fluoride ion source, (D) an azole, (E) a quaternary ammonium hydroxide and (F) a hydrogen peroxide stabilizer and has a pH of from 1.5 to 2.5, and a etching method of using it.

The invention discloses a cigarette loose end rate prediction method based on an improved gradient improvement decision tree, which comprises the following steps: acquiring process parameters of tobacco shreds in the same batch in each process of tobacco shred making and loose end rate data in a final package process, and forming an original data set by the process parameters and the loose end rate data; dividing the original data set based on the original data set in combination with a correlation coefficient analysis method to obtain a key process parameter set; performing normalization processing on the data in the key process parameter set, and performing random division on the normalized data to obtain a training data set and a test data set; on the basis of training samples in the training data set, constructing an improved gradient improvement decision tree model; and inputting the test data set sample into the improved gradient improvement decision tree model, and predicting the cigarette empty head rate. A connection is established between each process parameter of the tobacco shred making process and the index of the cigarette packet vacancy rate, so that more accurate prediction of the cigarette vacancy rate is realized.

The invention provides an information processing method and electronic equipment. The method comprises the following steps: first vibration information which is corresponding to a first voice and is detected by a vibration detection unit is obtained, and a second voice which includes the first voice and is acquired by a voice acquisition unit is obtained; the first vibration information is parsed to obtain first voiceprint information corresponding to the first voice; the second voice is parsed to obtain second voiceprint information corresponding to the first voice; based on the first voiceprint information and the second voiceprint information, third voiceprint information is obtained; and the third voiceprint information is converted to third sound information corresponding to the first voice. In the prior art, user's voice is filtered out or voice in the external environment is not completely filtered out by a noise removal mode, thus resulting in inaccurate voice processing in electronic equipment. In addition, the noise removal mode is single. By the above method provided by the invention, the above technical problems in the prior art are solved.

The embodiment of the invention discloses a method and device for preventing screen touch by mistake during double-hand holding and a mobile terminal and relates to the technical field of touch. The method comprises the steps of obtaining a user's terminal holding gesture when it is detected that set application software is opened; if the terminal holding gesture is double-hand holding, obtaining operation information corresponding to touch operation; performing matching on the operation information and historical operation law information of current application software, and determining whether to close a function of preventing touch on the edge of a touch screen by mistake according to matching results. According to the method and device for preventing screen touch by mistake during double-hand holding, a problem that when a virtual key is located in a mistaken touch preventing area of the touch screen, no response is made to the operation on the virtual key due to the starting of the function of preventing touch on the edge of the touch screen by mistake is solved, and an effect of improving treatment accuracy of a screen touch event of the mobile terminal is achieved.

The invention discloses a gantry type pipe and flat plate cutting machine. The gantry type pipe and flat plate cutting machine comprises a cutting assembly, a plate cutting mechanism, a pipe cutting mechanism and a crossbeam. The crossbeam is provided with a transverse driving unit. The cutting assembly is connected with the crossbeam, and a lifting driving unit is arranged on a cutting assembly installing seat. The transverse driving unit comprises a first gear, a first rack, a first motor and a first track. The plate cutting mechanism comprises a machine frame, a machine table and a longitudinal driving unit. The longitudinal driving unit comprises a second gear, a second rack, a second track and a second motor. The pipe cutting mechanism comprises a feeding track, an end chuck, a movable chuck and a feeding driving unit. The end chuck and the movable chuck each comprise clamping parts, a clamping part installing seat and a chuck body. The gantry type pipe and flat plate cutting machine is provided to meet the machining requirements of pipe products in the digital control cutting machining field, and is easy to control, convenient to use and flexible in clamping, reduces the machining cost of pipe products, and widens the cutting machining range of a digital control cutting machine.

The invention belongs to the technical field of geological parameter detection measurement, aims at overcoming the deficiency and limitation that existing anchor rod drilling machines adopting the rotation cutting method cannot conduct reasonable support according to the actual roadway geological conditions and provides a coal mine roadway geological parameter on-line monitoring system. The system comprises sensor detection elements, a data conversion module and a human-computer interface, roadway geological parameters such as a rock crack and the position and thickness thereof, a stratum surface limit and the position thereof and rock lateral-confinement-free compressive strength can be identified conveniently through four drilling parameters obtained by sensors, such as the oil cylinder feeding force and feeding speed and the drilling box motor rotating torque and rotating speed, hardness grading is further conducted on a back, the roadway geological parameters are judged so that anchoring protection parameters and drilling parameters can be adjusted and improved, and the deficiency and limitation that existing anchor rod drilling machines adopting the rotation cutting method can only conduct pure anchoring drilling operation and cannot conduct reasonable support according to the actual roadway geological conditions are overcome.

An embodiment of the invention discloses a palm rejection method and device for screen edges and a mobile terminal. The method includes the steps: acquiring screen states of the mobile terminal when application software in preset white lists is started; closing a palm rejection function of the screen edges, and starting a counter to record number of touch operations acted on a set palm rejection area if the screen state is a first state; acquiring touch operations inputted by a user according to set periods, and increasing counting values of the counter when the touch operations meet presser conditions; opening the palm rejection function of the screen edges if the value of the counter in the set time exceeds a set threshold value. The palm rejection method solve the problem that the mobile terminal executes faulty operations as the screen edges are faultily touched after the palm rejection function of the screen edges is closed, reporting accuracy of touching points is improved, and processing accuracy of screen touch events of the mobile terminal is improved.

The invention provides an industrial equipment fault maintenance question-answering system based on a Knowledge Graph, and the system comprises the following steps: obtaining expert experience knowledge, preprocessing disambiguation, and constructing an industrial fault maintenance field knowledge graph through employing a relation extraction algorithm and an event extraction algorithm; combiningthe deep neural network and the hidden Markov model to construct the voice recognition model, training the voice recognition models of multiple regions while the mandarin voice recognition accuracy isimproved, and realizing accurate analysis of multiple dialect voices. Semantic analysis is carried out on a voice recognition result based on a Fasttext intention recognition algorithm and other integrated natural language processing technologies, the voice query intention of a client is accurately recognized, and related fault maintenance suggestions are queried for a knowledge graph.

A crease-type collision energy-absorbing box belongs to the technical field of automobile body structure manufacturing. It is characterized in that the thin-walled pipe fitting introduced with crease lines is used as a crash energy-absorbing box, and the final deformation mode of the collision deformation section is guided by the crease lines. Compared with ordinary thin-walled tubes, the obvious feature of the present invention is that a thin-walled tube is divided into several modules along the axial direction, and each corner area of ​​each module has a diamond-shaped concave corner at a certain distance along the axial direction. A thin-walled pipe with a creased pattern is thus formed. The effect and benefit of the present invention is that by introducing the crease pattern, the crash absorbing box can meet the requirements of high specific energy absorption rate and low load uniformity coefficient at the same time; the crease shape of the invention is easy to form, and the surface of the entire structure is an expandable surface , the advantage is that the whole structure can be directly formed by a thin plate, which makes the processing more convenient, greatly reduces the production cost, and the processing accuracy can also be improved.

A polishing device for optical elements includes: a tool shank (1), and a polishing disc base; wherein the tool shank (1) is connected to the polishing disc base and is mounted on a tool shaft of a numerical-controlled processing device; wherein a polishing film (3) is stuck on the polishing disc base; the polishing disc base is a profiling polishing disc base (7), a cylinder polishing disc base (2), a profiling polishing disc base (12) or a spherical polishing disc base (8); wherein the tool shank (1) is independent and universal, thereby reducing the processing cost of the polishing device. A polishing method for optical elements is based on the shapes mentioned above of the polishing disc base.

An optoelectrical connector is composed of a plug to which a wire and an optical fiber are assembled and a receptacle to which the plug is inserted and connected. A receptacle includes insulation sleeves and conductive contacts in openings of receptacle housings, and plugs include a ferrule assembled bodies which are composed of an insulation ferrule which holds an optical fiber and a conductive cylindrical member which holds the ferrule and to which a wire is assembled, in an opening of the plug housing. When the plugs are inserted into the receptacle, the contacts and the cylindrical member contact with each other and the ferrules are inserted into the sleeves. Parts which serve electrical connection are not exposed.

The invention relates to a three-dimensional processing device for a cable. The three-dimensional processing device comprises a control chassis, a cable transmission component and a bending component,wherein the cable transmission component comprises a cable incoming frame and a cable feeding roller correspondingly arranged on one side of the cable incoming frame; the bending component is correspondingly installed on one side of the cable transmission component; the bending component comprises a pedestal, a turntable installed on the pedestal, a rotating drive piece connected with the turntable, a support arm arranged on the turntable, a curve roller and a bending block respectively arranged on the support arm, and a bending drive piece connected with the bending block; a threading hole is arranged in the middle of the turntable; and the feeding roller and the curve roller are respectively arranged on the two sides of the threading hole. The three-dimensional processing device for thecable is provided with the curve roller and is correspondingly provided with the feeding roller and the threading hole, the curve roller is driven by the rotating of the turntable to move in the processing process, then the cable is further subjected to three-dimensional forming processing, and the cable is processed into the size and shape required in use by one machine.

Discloses are an etching solution for a multilayer thin film having a copper layer and a molybdenum layer contained therein; and an etching method of a multilayer thin film having a copper layer and a molybdenum layer contained therein using the same. Specifically disclosed are an etching solution for a multilayer thin film having a copper layer and a molybdenum layer contained therein, which includes (A) hydrogen peroxide, (B) a fluorine atom-free inorganic acid, (C) an organic acid, (D) an amine compound having a carbon number of from 2 to 10 and having an amino group and a hydroxyl group in a total group number of 2 or more, (E) an azole, and (F) a hydrogen peroxide stabilizer, and which has a pH of from 2.5 to 5; and an etching method using the same.

The invention relates to a method for machining holes in printed boards. The method includes 1), drilling the holes according to drilling files; 2), preparing hole milling files; 3), milling the holes according to the hole milling files, and the like. The method has the advantages that when the hole milling files are prepared in the step 2), preliminarily compiled macro-programs are invoked by the aid of macro-language in CAM (computer-aided manufacturing)350 software, and only drilling-to-hole-milling switching parameters need to be inputted and selected, so that the hole milling files can be automatically generated, the hole milling machining efficiency and accuracy can be greatly improved, and human errors due to manual operation can be eliminated.

The invention discloses a steel structure beam column mortise-and-tenon-joint-type fast installing joint and an installing method thereof. The joint comprises a steel pipe column and a steel beam. The steel pipe column is provided with a reinforced attaching plate. An embedding groove is formed in the reinforced attaching plate. The steel beam is provided with an end plate. An embedded tenon is formed in the end plate. The embedded tenon is matched with the embedding groove. A self-locking bolt is arranged between a second bolt hole and a first bolt hole. The self-locking bolt comprises an outer bolt and an inner core bolt. The exterior of the outer bolt is provided with a hex nut. The end part of the outer bolt is provided with an internally-extending blade piece. The installing method comprises the following steps of (a) reinforced attaching plate machining, manufacturing and installing, (b) end plate machining, manufacturing and installing, (c) outer bolt and inner core bolt manufacturing, (d), steel pipe column and steel beam self-locking connecting, (e), self-locking bolt manufacturing, (f), steel pipe column and steel beam fastening and connecting, and (g), installing and detecting. The steel structure beam column mortise-and-tenon-joint-type fast installing joint has the characteristics that joint construction is fast in place, and the installing precision is high, a joint connecting structure is accurate in force transferring and fast and convenient to construct, and the problem that the bolt at a joint area is not easily constructed is solved.

The invention relates to a process optimization technology, and provides a service data rollback method and device, a computer device and a storage medium. The method comprises the following steps: receiving a service data modification request which is sent by a first terminal and carries a service data identifier; storing the modified service data determined according to the service data modification request to a block chain, and generating a service data auditing instruction according to the modified service data; sending the service data auditing instruction to a second terminal, and receiving auditing opinion data correspondingly fed back by the second terminal; storing the audit opinion data serving as an audit state and the modified service data in a block chain in an associated manner; and when a service data query request sent by the first terminal is received and the audit state of the modified service data is that the audit is not passed, searching the latest version from theblock chain according to the service data identifier, and feeding back the target service data of which the audit state is that the audit is passed to the first terminal. By adopting the method, theprocessing accuracy of the service data can be improved.

The invention relates to a city domain knowledge detection system and method based on an LDA topic model. The city domain knowledge detection system and method are used for generating a domain knowledge report of a certain domain of a smart city. The system adopts a C / S architecture, adopts a modular system design, and comprises an authentication and management module, a file uploading module, a data cleaning module, an emotion analysis module, a word segmentation and part-of-speech tagging module, a keyword extraction module, a clustering module and a data transmission module. According to the invention, large-scale domain knowledge data generated in the city informatization process is fully utilized, the city domain knowledge report can be automatically generated for the user, and the invention is further applied to the fields such as traffic early warning and public opinion monitoring; the design is good, operation is stable, the system can be used without deploying the environment,and the has high practical application value. The modules are updatable and replaceable, and can be suitable for maintenance, improvement and expansion which may be required in the future. Accordingto the personalized requirements of different users, each module provides customizable parameters or files, so that the system not only meets the general requirements of common users, but also meets the customization requirements of professional users.