40results about How to "Reduce necessity" patented technology

The invention relates to the technical field of data security, in particular to an unstructured video data automatic classification method, which comprises the following steps: S1, video data preprocessing: standardizing video data to a uniform format and size, and carrying out noise processing; s2, video data feature extraction and multi-mode feature fusion: feature extraction is performed on the preprocessed video data from three modes of audio, video and text, time sequence processing is performed, and multi-mode feature fusion is performed; s3, video data same-category matching: classifying the fused multi-modal features to complete video classification; according to the invention, multi-modal information in a video can be captured more accurately, and automatic processing of video data is realized; high processing efficiency and classification accuracy are kept in large-scale data, meanwhile, the degree of automation is improved, the necessity of manual participation is reduced, and the overall process is optimized.

The invention discloses a lightweight vehicle intranet identity authentication and key negotiation method based on a PUF (Physical Unclonable Function). The method comprises a system initialization stage, a PUF registration stage, an identity authentication and key negotiation stage and a block chain synchronization stage. The method is oriented to an automobile domain architecture, direct low-cost identity authentication is carried out on the electronic control unit by utilizing the PUF (namely a physical unclonable function), the necessity of installing safety hardware on the electronic control unit can be eliminated, and secret key leakage is prevented; meanwhile, symmetric cryptography is adopted, a hash function, a pseudo-random function and a Lagrange interpolation formula are combined to balance the speed and safety of the key negotiation process of the electronic control unit, and compared with an existing vehicle intranet identity authentication and key negotiation method, the method has remarkable performance advantages.

The invention discloses a high-voltage cable partial discharge detection method and system and a medium, and relates to the technical field of electrical quantity detection. A capacitive coupling sensor and detection equipment are constructed based on high-voltage electrical equipment; injecting a first signal into the high-voltage cable through the capacitive coupling type sensor based on the detection equipment, and collecting a feedback signal; judging whether the high-voltage cable is subjected to partial discharge or not based on the feedback signal, and obtaining the discharge intensity when the partial discharge occurs; according to the scheme, the method and the structure are improved on the basis of an existing partial discharge detection technology, signals are injected by means of a capacitance coupling type sensor of a high-voltage live display device which is widely applied at present, and real-time live detection of high-voltage electrical equipment such as a switch cabinet, a ring main unit and a cable branch box is achieved. On-site detection work efficiency and detection precision are greatly improved, urgency and necessity of large-scale installation of intelligent online monitoring equipment are reduced at the same time, and maximization of operation and maintenance quality and efficiency of a power distribution equipment operation and maintenance overhaul technology is achieved.

The invention discloses a railway track vertex cloud data extraction method and system based on deep learning. The method comprises the following steps: classifying track point cloud data by using a point cloud network enhanced multi-scale classification model to obtain a track key component point cloud classification data set; rail head point cloud data are extracted from the rail key component point cloud classification data set, center line fitting is carried out, a rail head center line is generated, and a reference point is selected on the rail head center line; a rolling window method is adopted, and a plurality of slices are generated along the rail head center line according to the reference points; and carrying out rail top point extraction on the plurality of slices to obtain a continuous rail top coordinate point set. The system comprises a data classification module, a rail head center line generation module, a slice generation module and a rail vertex extraction module. The rail top data extraction efficiency can be improved, the data accuracy and the rail safety are ensured, and scientific maintenance and management of the railway rail are facilitated.

The utility model discloses a multi-station hydraulic sliding table drilling and tapping integrated device, and relates to the technical field of drilling and tapping devices. The multi-station hydraulic sliding table drilling and tapping integrated device comprises an operation table, a moving assembly used for moving a workpiece needing to be machined is fixedly installed at the top of the operation table, and a discharging assembly used for discharging the machined workpiece is fixedly installed at the position, located on one side of the end of the right side of the moving assembly, of the top of the operation table. The discharging assembly comprises a rotating motor fixedly installed on the top of the operation table through a supporting plate, the output end of the rotating motor is fixedly connected with a rotating disc, and through the arranged discharging assembly, when the drilling and tapping integrated device is used, the rotating motor drives a discharging rod to rotate through the rotating disc; the drilling and tapping integrated device is matched with the moving assembly to push and discharge the machined workpiece located on the machining plate, the manual operation step is omitted, the automation degree of the drilling and tapping integrated device is improved, and the labor cost is greatly reduced.

A system for use in a vehicle includes at least two hydraulic damper assemblies. The system includes an injection pump in fluid communication with the hydraulic damper assemblies. The injection pump includes a barrel having an opening. The injection pump includes a plunger slidable within the barrel in a first direction and a second direction, the first direction causing hydraulic fluid to move into the barrel via the opening and the second direction causing hydraulic fluid to move out of the barrel via the opening. The system includes an actuator supported within the barrel and operatively coupled to the plunger.

Disclosed are a motor driving structure and a motor driving device. The motor driving structure includes a driving mechanism (1), wherein the driving mechanism (1) includes a lead screw (13), a nut (15), a push rod (16), and a capping head (17); the lead screw (13) is used to be drivingly connected with an output end of a motor (4); the nut is threaded to the lead screw (13) and used for connecting the lead screw (13) with the push rod (16); the push rod (16) is positioned between the nut (15) and the capping head (17); the push rod (16) is integrally formed with the nut (15) and / or the capping head (17); the push rod (16) is made of a plastic material; and the nut (15) integrated with the push rod (16) and / or the capping head (17) integrated with the push rod (16) are / is made of a plastic material. Optional integral injection molding of the push rod (16) and the parts on both ends thereof eliminates the process of providing connecting threads on both ends of the push rod (16), thereby helping to improve the production efficiency and assembly efficiency.

The utility model aims to provide a remote control low-magnification foam gun. The remote control low-magnification foam gun comprises a gun head, a gun body and a gun seat, the cannon head is connected with the front section of the cannon body; a bearing is arranged between the front section of the cannon body and the rest part of the cannon body; the bearing is connected with a hydraulic adjusting mechanism, and the hydraulic adjusting mechanism is connected with a remote control box; a stepping motor and a remote control signal receiver are arranged in the remote control box, and the remote control signal receiver is electrically connected with the stepping motor through a control circuit. Compared with an existing low-power foam monitor, the elevation angle of the foam monitor can be remotely adjusted, so that the necessity of firefighters for operation at a near fire point is reduced, and the fire-fighting operation risk is reduced.

A control system (1) for driving a vehicle by automatic steering is a system comprising: a vehicle control unit (112) for controlling the vehicle so that an object point set for the vehicle passes through a prescribed route; an object point selection processing unit (113) for selecting an object point; and an object point update processing unit (114) for updating the object point of the control object at any time by setting the object point newly selected by the object point selection processing unit (113) as a control object. The control system (1) is a highly versatile system capable of automatic steering regardless of the type of vehicle or the shape of the route.

The utility model discloses a hydrogen injection fuel cell standby power supply system. According to the technical scheme, the hydrogen injection fuel cell standby power supply system is characterized by comprising a gas inlet electromagnetic valve and a fuel cell stack which are connected with hydrogen through a pipe, the gas inlet electromagnetic valve outputs gas to an injection device, and a pressure release valve and a pressure sensor are arranged between the injection device and the fuel cell stack; and a gas-water separator is arranged at the output end of the fuel cell stack and is matched with the injection device for circulation. The injection device is adopted to replace a traditional mode that a proportional valve and a hydrogen pump are combined for circulation, so that efficient operation of the system is maintained, and stability and reliability of the system are enhanced.

The present invention relates to the technical field of sheet metal processing, and discloses a material unloading component of a metal sheet pickling device, comprising: a first conveying platform; a pickling liquid tank, which is arranged on the right side of the first conveying platform; a second conveying platform, which is arranged on the right side of the pickling liquid tank; a metal sheet, which is placed on the top of the first conveying platform; and a material unloading mechanism, which is arranged on the top of the pickling liquid tank. The device is easy to operate, can quickly load the metal sheet into the pickling frame, and automatically remove the metal sheet after the pickling is completed, without the need for manual loading and unloading and removing of the metal sheet, thus avoiding the harm of the pickling liquid to the operator, improving the safety of the operation, and improving the production efficiency. In addition, the device can wash the surface of the metal sheet while pickling the metal sheet, thus improving the pickling effect, reducing the necessity of multiple pickling, reducing the amount of acid used, and saving resources.

The invention discloses a mark point printing method and device for clothing cloth paving fabric, and the method comprises the steps: S1, determining the length of a cloth paving region, S2, carrying out cloth paving and fixing on a first layer of cloth paving fabric on the cloth paving region, S3, printing the position, needing to be marked, of the first layer of cloth paving fabric, and S4, printing the position, needing to be marked, of the first layer of cloth paving fabric. S4, fixing a second layer of cloth paving fabric on the first layer of cloth paving fabric, and printing a position needing to be marked of the second layer of cloth paving fabric, and S5, repeating the step S4, and sequentially performing cloth paving fixing and position needing to be marked on the remaining N-2 pieces of cloth paving fabric; according to the mark point printing method and device for the clothing paving fabric, a method of firstly printing and then cutting is adopted, number printing, cutting piece point location and key position marking are accurately completed on the non-cut fabric at a time, the labor cost and the consumable cost are greatly reduced, and the comprehensive competitiveness of clothing processing enterprises is enhanced.

The utility model relates to full-automatic acupoint patch production equipment which comprises a rack and a conveying belt rotationally borne on the rack, and a patch feeding mechanism, a gluing mechanism, a heating bag feeding mechanism and a pressing mechanism are sequentially arranged on the rack in the rotating direction of the conveying belt. The patch feeding mechanism is used for placing acupuncture point patches on the conveying belt, the gluing mechanism is used for gluing the acupuncture point patches located on the conveying belt, the heating bag feeding mechanism is used for placing heating bags on the acupuncture point patches, and the pressing mechanism is used for pressing the acupuncture point patches and the heating bags. The effect of improving the production efficiency of the acupoint patch with the heating bag is achieved.

The present disclosure provides a therapy for diabetes that targets abnormal stem cells by HDAC inhibitors in combination with stem cell migration. In one embodiment, the present disclosure provides a therapy for diabetes and / or diabetes-related diseases and disorders and / or symptoms that targets abnormal stem cells by HDAC inhibitors in combination with stem cell migration. In one embodiment, the present disclosure provides a therapy for diabetes and / or diabetes-related diseases and disorders and / or symptoms that targets abnormal stem cells by HDAC inhibitors in combination with stem cell migration, in a subject in which abnormal stem cells have been detected.

A radiation detector includes a positioning member having a through hole through which radiation passes, a scintillator having an input surface to which the radiation passing through the through hole is input and configured to convert the radiation into scintillation light, a sensor unit having a light-receiving surface that receives the scintillation light converted by the scintillator and configured to detect the scintillation light, and a lens unit having a lens configured to perform image capturing on the input surface of the scintillator and the light-receiving surface of the sensor unit. The positioning member has a first positioning portion with which the input surface of the scintillator comes into contact to position the scintillator and a second positioning portion with which one end face of the lens unit comes into contact to position the lens unit.

The invention relates to a grabbing task-oriented visual relationship understanding method and a grabbing task-oriented visual relationship understanding system. The grabbing task-oriented visual relationship understanding method comprises the following steps of: acquiring a scene image containing a plurality of objects; performing feature extraction on the scene image based on a deep convolutional network to obtain a basic feature layer of the scene image; inputting the basic feature layer into a target detection network, and obtaining classification information and position information of each object; the classification information and the position information are mapped to a basic feature layer to obtain a region of interest of each object, irrelevant object feature pairs are removed through a relation filter, and relevant object feature pairs are obtained; inputting the object feature pairs into a visual relation detection network to obtain a relation matrix; and the object grabbing sequence is determined by combining the grabbing task and the relation matrix, and the target object is grabbed according to the object grabbing sequence. According to the method, the reasonable grabbing sequence is obtained by understanding the visual relation of the multiple target objects in the complex scene, and the safety and reliability of the robot in the grabbing operation process are guaranteed.

The utility model is suitable for the technical field of solar cells, and provides a silicon wafer, a solar cell, a cell module, a photovoltaic system and a silicon rod. The silicon wafer comprises a central region and corner edge regions, the conductive type of the central region is N type, and the conductive type of the corner edge regions is P type. Therefore, the conduction type of the central area of the silicon wafer is N type, and the conduction type of the corner edge area is P type, so that in the process of manufacturing the solar cell based on the silicon wafer, the P-type corner edge area can be utilized to bear pollution of copper ions to the edge of the silicon wafer, and recombination caused by pollution of the copper ions to the edge of the silicon wafer is reduced. Meanwhile, PN junctions can be formed in the silicon wafer, and after a solar cell is manufactured, a better field passivation effect can be formed in the solar cell, and carrier transmission is facilitated. Therefore, the photoelectric conversion efficiency of the solar cell prepared based on the silicon wafer can be improved.

To provide a defect classification system being simple in preparation and maintenance and capable of recognizing a cause of a defect. The present invention provides a defect classification system 10 including imaging means 11 for causing an imaging device G to image paper P2 that has passed through a dry part D and acquiring image data obtained by the imaging, detection means 12 for detecting a defect in the paper P2 in the image data, extraction means 13 for extracting a feature amount of the defect, calculation means 14 for causing a classification model 20 in which a reference feature amount is previously set to calculate a certainty factor in a defect cause item on the basis of the feature amount of the defect, and display means 15 for displaying the certainty factor, in which the classification model 20 is caused to learn the reference feature amount using machine learning from a relationship between respective feature amounts of defects previously stored and a plurality of defect cause items.

Provided are an X-ray inspection method and an X-ray inspection device with which three-dimensional data of a defect in an object can be acquired in a short time. The present invention is provided with: an X-ray transmission image acquisition step for performing X-ray imaging of an object (1) and acquiring a two-dimensional X-ray transmission image (3a); a model generation step for generating, as a three-dimensional virtual model (4), a model corresponding to the object (1) including the defect (2) using known structural parameters with respect to the object (1); a virtual transmission image generation step for generating a two-dimensional virtual transmission image (6a) from the three-dimensional virtual model; and a parameter correction step for correcting the structural parameters of the three-dimensional virtual model (4) so that the two-dimensional virtual transmission image (6a) approaches the two-dimensional X-ray transmission image (3a), using the result of the comparison between the two-dimensional X-ray transmission image (3a) and the two-dimensional virtual transmission image (6a).

The present invention belongs to the technical field of establishing finite element physical models, and specifically relates to a design method and system for a finite element boundary load model. The design method of the finite element boundary load model of the present invention can decouple the original geometric model and the boundary load, maximize the use of pure geometric model data for finite element calculations, reduce the necessity of repeated modeling, and provide a prerequisite for quickly solving the finite element model; for solving problems at different times in a continuous time period, a geometric intersection body can be constructed for the current moment based on the calculation results of the previous moment and combined with the actual situation, and then an equivalent load is set based on the mesh model after the geometric intersection body and the geometric model are divided to perform finite element solution at the current moment, thereby solving the finite element problem of solving different boundary domains at continuous moments.

The invention discloses a federated learning method based on representation driving head clustering under an edge device, which extracts core features from local original data through representation learning, and only uploads data representation to a server, so that communication overhead can be reduced, core information of the original data is reserved, and accuracy of a clustering process is ensured. And the server is based on the shared layers in the representation training clusters, so that the precision of the model is ensured. According to the method, a model is decoupled into a representation generation module and a shared header, and the representation generation module is used for generating data representation; the shared head improves the generalization ability of the model by learning knowledge of different clients. The central server dynamically clusters the clients according to the representation uploaded in each round, the clustering structure can be adjusted in time according to the change of data in each round of iteration, the accuracy and adaptability of clustering are ensured, and finally, the central server uses the data representation of the clients in the cluster to train the shared header of each cluster. And the trained shared head is sent to the client, so that the generalization ability of the model is enhanced.

The invention relates to the technical field of computers, and discloses a method for realizing residence of a real-time operating system under an embedded architecture, which is characterized by comprising the following steps of: S1, determining a universal embedded computer architecture: determining a universal embedded computer architecture, which is a basis for realizing the residence method, the architecture can support the operation of a real-time operating system and provide necessary interfaces and services; the method has the advantages that by setting measures for solving defects, richer documents and training resources are provided, and developers are helped to master new technologies more quickly; standardized hardware and software components are adopted, and the necessity of customized development is reduced, so that the cost is reduced and the efficiency is improved; and a modular and extensible design method is encouraged to be adopted, so that the system can adapt to different hardware platforms and demand changes more easily, and the measures have the effects of improving the development efficiency, reducing the cost, simplifying the learning process and enhancing the expandability of the system.

The utility model aims to provide a remote-control high-expansion foam gun. The remote-control high-expansion foam gun comprises a gun head, a gun body and a gun seat, the front end of the cannon head comprises a cone-frustum-shaped cannon shooting net; the cannon head is connected with the front section of the cannon body; a bearing is arranged between the front section of the cannon body and the rest part of the cannon body; the bearing is connected with a hydraulic adjusting mechanism, and the hydraulic adjusting mechanism is connected with a remote control box; a stepping motor and a remote control signal receiver are arranged in the remote control box, and the remote control signal receiver is electrically connected with the stepping motor through a control circuit. Compared with an existing high-expansion foam monitor, the elevation angle of the foam monitor can be remotely adjusted, so that the necessity of firefighters for operation near a fire point is reduced, and the fire-fighting operation risk is reduced.

The invention discloses a lactic acid bacteria high-density culture method based on a pH control system, and relates to the technical field of lactic acid bacteria culture.The lactic acid bacteria culture stage is monitored in real time, a pH sensor and a PID control algorithm are adopted, the pH value in the fermentation process is maintained within the range of 6.7 + / -0.1, excessive accumulation of lactic acid is avoided, and large fluctuation of the pH value is avoided; the lactic acid bacteria efficiently grow in a stable acid-base environment, the fermentation efficiency and the thallus yield are greatly improved, more effective pH control is provided, the growth speed of the lactic acid bacteria is increased, high-density thallus culture is maintained, automatic adjustment is carried out in the fermentation process, continuity and stability are provided for the fermentation environment, the fermentation time is shortened, and the production cost is reduced. In the same fermentation period, the biomass of lactic acid bacteria is remarkably increased, the yield is improved, the overall production efficiency and economic benefits are improved, an automatic pH control system can continuously monitor the environment in the fermentation tank, automatic adjustment is conducted when the pH value changes, and the risk of personal errors is reduced.

The invention belongs to the technical field of plant extracting solution concentration, particularly relates to a Chinese herbal medicine extracting solution concentration device and a method thereof, and aims to solve the problem that an existing concentration tank is poor in Chinese herbal medicine element concentration efficiency, the following scheme is provided: the Chinese herbal medicine extracting solution concentration device comprises a tank body, a containing groove is fixedly connected to the bottom of the tank body, and an extraction pipe is arranged on the containing groove; a circular hole is formed in the upper side of the tank body, a liquid inlet hopper is fixedly connected in the circular hole, a stable table is arranged in the tank body, three separation pipes which are circumferentially distributed at equal intervals are arranged outside the stable table, and the same centrifugal film forming module is arranged on the three separation pipes. The effect of forming a film by a Chinese herbal medicine extracting solution in the concentration tank can be improved in the process of concentrating Chinese herbal medicine elements by adopting a film evaporation method, so that sufficient separation of water and the Chinese herbal medicine elements by the concentration tank is ensured, the necessity of repeated concentration is reduced, and the concentration efficiency and effect of the concentration tank are improved.

The utility model aims to provide a remote control snowstorm foam gun. The remote control snowstorm foam gun comprises a gun head, a gun body and a gun seat, the cannon head is connected with the front section of the cannon body; a bearing is arranged between the front section of the cannon body and the rest part of the cannon body; the bearing is connected with a hydraulic adjusting mechanism, and the hydraulic adjusting mechanism is connected with a remote control box; a stepping motor and a remote control signal receiver are arranged in the remote control box, and the remote control signal receiver is electrically connected with the stepping motor through a control circuit. Compared with an existing snowstorm foam cannon, the snowstorm foam cannon integrates the advantages of a medium-magnification cannon and a low-magnification cannon, and the application scene is expanded. And the elevation angle of the foam monitor can be remotely adjusted, so that the necessity of firefighters to operate near a fire point is reduced, and the fire-fighting operation risk is reduced.

The present application relates to the field of metallurgical engineering technology, and specifically to a method for controlling the full-length length of a bar in a steelmaking and rolling combined process, comprising: step 1, shearing the bar rolled from the billet with a flying shear, and measuring the length of the last section of the bar; step 2, calculating the difference between the length of the last section of the bar and the full-length bar length; step 3, changing the length of the billet in the billet shearing stage according to the difference between the length of the last section of the bar and the full-length bar length. The present invention can more effectively control the final length of the bar, reduce length deviation, reduce waste generation and the necessity of subsequent trimming, reduce production costs, shorten production cycles, and improve overall production efficiency by making adjustments in the steelmaking stage.

The invention relates to the technical field of road bridge maintenance, in particular to a multifunctional road bridge maintenance vehicle which comprises a mobile control device and a protective shell arranged on the mobile control device, a reciprocating trimmer is arranged on the side face of the protective shell, a roller cleaning machine is movably arranged on the side edge of the protective shell, and a control cylinder is movably arranged in the protective shell. According to the multifunctional road and bridge maintenance vehicle, by means of the operation of turning over the roller cleaning machine, the driving cylinder is started and moves, then the control cylinder arranged on the end face is dragged to displace, and the roller cleaning machine is driven to rotate, so that the roller cleaning machine is driven to rotate, and the spraying assembly is driven to rotate to clean the guardrail. The process causes the drive part to be disconnected from the part of the control cylinder, the necessity of manual participation is reduced, the arranged spraying assembly can achieve flexible cutting of two different hole diameters in the process of rotating the roller cleaning machine, and it is ensured that the cleaning process is smoother and more efficient.

A method for establishing profile data of at least one profile in a target eUICC, the profile data comprising at least an authentication key K, the method comprising the steps of: a) receiving at the eUICC MNO information comprising at least an indication of which profile data shall be generated; the method is characterized by the steps performed after step a) of: b) generating in the target eUICC at least some of the profile data, here at least the network authentication key K; c) outputting from the target eUICC to an external entity the profile data generated in the target eUICC or at least a part thereof after step b); d) receiving at the external entity at least some or all of the profile data output, here at least the authentication key K; and e) initiating at the external entity or at an entity invoked by the external entity the generation of a profile comprising the received authentication key.

The utility model aims to provide a remote-control medium-expansion foam gun. The remote-control medium-expansion foam gun comprises a gun head, a gun body and a gun seat, the cannon head is connected with the front section of the cannon body; a bearing is arranged between the front section of the cannon body and the rest part of the cannon body; the bearing is connected with a hydraulic adjusting mechanism, and the hydraulic adjusting mechanism is connected with a remote control box; a stepping motor and a remote control signal receiver are arranged in the remote control box, and the remote control signal receiver is electrically connected with the stepping motor through a control circuit. Compared with an existing medium-expansion foam monitor, the elevation angle of the foam monitor can be remotely adjusted, so that the necessity of firefighters for operation at a near fire point is reduced, and the fire-fighting operation risk is reduced.