4390results about How to "Guaranteed efficiency" patented technology

A communication device, for connecting one or more electrical appliances to a remote service centre, comprises a control unit (AMC), means (PLG) for connecting the device (HG) to an alternating voltage electric mains network (Vac) and means (SK) for supplying the alternating mains voltage (Vac) to a power supply line of an electric appliance. The device (HG) further comprises first communication means (CSA), prearranged for receiving information possibly generated by the electric appliance and transmitted through the power supply line thereof, second communication means (ZB), prearranged for establishing a connection with a local area network (HN1) and third communication means (GGM), prearranged for establishing a connection with a further communication network, different from the local network (HN1), to which the remote service centre is connected. The control unit (AMC) is prearranged for acquiring by means of the first communication means (CSA), first information possibly generated by the electric appliance and transmitted through the power supply line thereof and/or second information regarding electric energy consumptions associated to the operation of is the electric appliance, acquiring, by means of the second communication means (ZB), third information possibly available on the local network (HN1), and transmitting to the remote centre (RMC), by means of the third communication means (GGM), at least one of the first, second and third information.

The invention discloses an indoor robot SLAM method. The method comprises the following steps: obtaining image data through a camera, wherein the image data comprises RGB images and depth images; using a corner detection algorithm, an LK characteristic point tracing algorithm, and a RANSAC algorithm to process the RGB images and depth images to adjust the position and angle of the camera so as to obtain the RGB image data information under a robot operation system; converting the depth images in a world coordinate system to a ground coordinate, traversing the depth images that are projected on the ground coordinate, setting the gray value of the grid where a barrier stays as a first characteristic value, carrying out traversing to obtain a 2D barrier grid map; through a single line laser radar scanning mode, searching the 2D barrier grid map, when the grid with a grey value equal to the first characteristic value is found, feeding back the distance between the grid and the camera to obtain the distance between a robot and the barrier, obtaining the depth images under a robot operation system, and obtaining an environment 2D map.

The invention discloses an image searching method, which comprises a training part and a searching part, wherein the training part comprises the following steps of: the extraction of characteristic points, the supplementation of the characteristic points and the determination of matching relationships, the generation of similar point set, the clustering of the characteristic point sets and the generation of characteristic vectors of each image in an image database; and the searching part comprises the following steps of: extracting the characteristic points of a picture to be retrieved and generating the characteristic point sets; calculating distances between each characteristic point descriptor vector and corresponding cluster centers, and determining a cluster where a current characteristic point belongs by using a smallest distance; calculating the frequency ni of each cluster where the characteristic points of the picture to be retrieved belong; based on the frequency ni of the clusters where the characteristic points of the picture to be retrieved belong, and the probability logarithm wi of each cluster, generating and unitizing the characteristic vector; and calculating Euler distances between the characteristic vector of the picture to be retrieved and the characteristic vectors of each image in a picture library, and selecting the image output with the smallest distance as a searching result.

A method for online trading of assets via transactionally linked virtual markets comprising the steps of defining attributes and behaviors of each of the virtual markets; placing individual buy or sell orders in each of the virtual markets; optionally defining trading strategies that will each span at least two virtual markets; calculating a price and amount for each order in the virtual markets defined by a trading strategy; generating an order in each of the virtual markets contained within a trading strategy; and matching and executing both the individual orders and orders generated by the defined trading strategies.

The invention discloses a dual heat-source heat-pump hot water device with an extremely simple refrigerating loop. The device is characterized by mainly comprising a compressor, a hot water condenser, a wind heat exchanger, a water heat exchanger, a four-way valve, a bidirectional throttle and the like, wherein a high pressure inlet of the four-way valve is connected with the outlet of the hot water condenser, and the other three ports thereof are connected with air inlets of the wind heat exchanger, the water heat exchanger and the compressor respectively; other ports of the wind heat exchanger and the water heat exchanger are connected with the bidirectional throttle; the exhaust port of the compressor is connected with the inlet of the hot water condenser, and is connected with high pressure air inlet of an electromagnetic pilot valve of the four-way valve; four functions of manufacturing hot water by utilizing water source or air energy and providing air-conditioning cool water by utilizing air-cooling or heating water can be realized by only switching the four-way valve, defrosting can be performed completely and quickly; and a water pre-heater is added to the device to reclaim the heat of waste hot water. The heat pump has the advantages of dual heat sources compensation and wide application range, has multiple functions, extremely simple structure, extremely convenient switching and over 5 of annual comprehensive energy efficiency ratio, and has great popularization value.

The invention discloses a motion intention recognition device for lower extremity exoskeletons and a method thereof, and belongs to the technical field of lower extremity exoskeleton robots. The motion intention recognition device comprises a lower extremity EMG signal acquisition module, a plantar pressure acquisition module, a lower extremity inertial information measurement module, a data acquisition and transmission module and a central controller. An offline database gait trajectory based on the plantar pressure signal is obtained by using one-against-one SVM multi-classification and a real-time prediction trajectory of joint angle based on EMG signal is obtained by using CNN online joint angle estimation model. In addition, the variable gain information of the two trajectories is fused according to the fatigue degree of muscles to provide an accurate motion expectation trajectory for the lower extremity joint actuation of the exoskeleton robot. The invention effectively combinesthe advancement of the EMG signal and the stability of the plantar pressure signal, greatly improves the accuracy and real-time capability of the motion intention recognition, and provides sufficientassurance for the safety and the power assisting efficiency of the exoskeleton robot.

The invention provides a high-efficiency extinguish material for a major fire source, which comprises the following components by weight portion: 1 to 50 portions of component A, 1 to 2 portions of component B, 2 to 1,000 portions of component C, and 0 to 200 portions of component D. The component A is an inorganic silicate material; the component B comprises a foaming agent, a surfactant and a dispersing agent; the component C is water; and the component D comprises a defoamer, a fireproof material, a material generating flame-retardant gas through pyrolysis, a water absorber, a colloidal material and a filling material. The high-efficiency extinguish material overcomes the defects that the prior art has high production and using cost, fast running-off, low service efficiency, severer pollution and high residual quantity, has the advantages of low cost, controllable specific gravity, higher viscosity, difficult seepage, loose storage conditions, fast production, convenient use, safe performance and the like, and can achieve large batches of long-distance transportation. The high-efficiency extinguish material is applicable for large-scale fire extinguishing of oil products, flammable chemicals, large buildings, coal mines, forests and the like, other fire source control and the like.

The invention provides a descriptor-based PCIE bus DMA controller and a data transmission control method, includes TLP sending engine, TLP receiving engine, interface access control module, DMA transfer control module, descriptor access control module, multi-DMA channel control module, control status register and DMA channel buffer. The DMA transfer process of the DMA controller designed by the invention is completely controlled by a descriptor, and the data bandwidth and the transfer efficiency are improved. DMA data transmission can configure multiple DMA channel, and that priority of each DMA channel, the transmission triggering threshold and the timeout time are programmable, so that the data transmission can be carry out according to the high and low priority, and the real-time data transmission of the specific channel can be guaranteed; The upload/download data buffers of all DMA channels can be dynamically managed to achieve multi-channel DMA multiplexing and ensure the efficiency of DMA transfer bandwidth.

The invention discloses an input method and a system of the input method, solving that words that are unexpected to disappear such as wrong words and words unfamiliar to users are usually listed in candidate items to influence the users to select words in current input methods. The input method comprises receiving a coded character string input by a user, acquiring a candidate list corresponding to the coded character string, searching for a current delete list corresponding to each candidate item in the candidate list, determining whether to output the candidate item according to the delete list or not, deleting the candidate item from the candidate list if not, and outputting the candidate items after sequencing the candidate items in the candidate list. The invention reduces the quantity of the candidate items, reduces interference to normal word selecting, and increases the efficiency of selecting words. The delete list is independent of a word stock of the input method, the word stock of the input method can keep the read-only characteristic, and can not be affected by addition, deletion and other operations to the delete list, thereby reducing the complexity degree of the programs of the input method, and benefiting the stability of the programs of the input method.

The invention discloses a neutral oil removal rust remover, which is mainly prepared from deionized water and the following components by mass fraction: 4-8% of physical dispersing agent, 8-10% of chemical chelating agent, 4-6% of oil-removing emulsifier and 1-4% of corrosion inhibitor. The preparation method disclosed by the invention comprises the following steps: firstly, preparing the components according to the proportioning requirements; weighting the ingredients in the chemical chelating agent to put into a container; adding the deionized water to evenly agitate, so as to obtain a solution A; adding the physical dispersing agent and the corrosion inhibitor to the solution A; agitating to obtain a solution B; additionally, adding the prepared components of the oil-removing emulsifier to the container; adding the deionized water to dissolve; adding a functional additive to obtain a solution C; and evenly mixing the solution B with the solution C under the agitation condition to obtain the neutral oil removal rust remover. By adopting the product disclosed by the invention, the oil and rust removal work can be quickly and efficiently finished, and the neutral oil removal rust remover is free of damage to a substrate.

The invention discloses an indoor positioning method based on improved square root unscented Kalman filtering. The method comprises the following steps of firstly, establishing a UWB positioning modeland a pedestrian dead reckoning PDR model in a fusion indoor positioning method; then, according to a residual identification method criterion, determining whether an NLOS criterion exists in a positioning result of the UWB positioning model; if the NLOS exists, using an improved square root unscented Kalman filtering algorithm to fuse a coordinate of inertial navigation dead reckoning with a positioning coordinate of UWB, and correcting a UWB solving coordinate data; and if the NLOS does not exist, using the UWB to analyze a current coordinate and completing real-time positioning. In the invention, the pedestrian dead reckoning PDR is used to compensate a UWB signal loss or non-line of sight condition, which improves the positioning accuracy of the system and the advantages of high precision and high robustness are possessed.

The present invention discloses a flexible charging service network, a charging method and an offline mobile service method. The network comprises: a reservation service management platform configured to build the communication connection with each charging station/charging pile and mobile charging service vehicle, timely understand the state information of each charging station/charging pile and each parking stall, store the navigation map of each charging station/charging pile in advance and managing each charging pile and each smart parking stall lock; the charging stations/charging piles configured to charge new energy vehicles through the dispatching of the reservation service management platform at leisure and when the electric quantity of the new energy vehicles can reach the charging stations/charging piles; and a mobile charging rescue service vehicle configured to charge the new energy vehicles through the dispatching of the reservation service management platform when there is no leisure charging station/charging pile or the electric quantity of the new energy vehicles cannot reach the charging stations/charging piles. The network coverage is large, the construction period is short, and the investment at the initial stage is small.

The invention discloses a method and a device for maintaining an MAC table entry inside a distributed network processing system, which are applicable for the distributed network processing system including an interface board and a plurality of service boards. The method includes the following steps: studying on the MAC table entry is carried out on the service boards according to a message flow forwarded by the interface board; the MAC table entry required to be studied is saved in a first MAC table at the local area and is saved inside a first MAC table of other service boards as well as a second MAC table maintained by the interface board at the same time; aging maintenance is carried out for the second MAC table according to the message flow of the interface board and the corresponding MAC table entry inside the first MAC table is deleted at the same time. The invention also discloses a distributed network processing system. Thereby, data transmission interruption caused by re-studying a MAC address is avoided, the continuity and efficiency of data transmission processing is guaranteed, and problems of data packet loss and flooding caused thereof are avoided.

The invention relates to a single even effect cross section obtaining method based on simulation. The single even effect cross section obtaining method comprises the following steps of: setting an actual material structure, geometric structure and doping parameters of a device, and realizing a complete device model; carrying out semiconductor characteristic numerical calculation, solving a diffusion drifting equation, a poisson equation and a current carrier continuity equation, and obtaining an electricity characteristic curve of the device; and calibrating key electrical parameters of a single even effect device model so that the device electricity is in line with theoretical expectation, wherein the key electricity parameters include a transistor transfer characteristic curve and a storage delay characteristic curve. The single even effect cross section obtaining method based on simulation, provided by the invention, has the advantages that the position of the single even effect error can be located, the relationship among the wiring and size of the device, the technological parameter of the device and the sensibility of the single event effect can be realized, and the confirmation of the single even effect performance can be realized in the design stage.

The invention extends the connotation range required to be protected on the basis of a previously issued patent ZL200710025045.4, i.e., a nanometer microcrystalline composite filter material and a preparation method thereof, belonging to the field of a water disposal technique material. According to weight percentage, the nanometer microcrystalline composite filter material comprises 3-95 percent of attapulgite clay, 5-80 percent of sepiolite clay, 2-25 percent of kaolinite clay, 2-97 percent of tubular halloysite, 5-75 percent of diatomite, 5-75 percent of natural zeolite (clinoptilolite, mordenite and the like), 0-25 percent of pillared montmorillonite, 0-50 percent of expanded vermiculite, 0-5 percent of expanded perlite and 0-50 percent of active carbon or bamboo carbon powders. All raw materials which are powder shapes are mixed according to proportion and stirred to granulate by adding an inorganic adhesive, then sintered and activated at the temperature of 900-500 DEG C (inert gas is required for sintering and activating the filter material added with active carbon). The nanometer microcrystalline composite filter material has smooth shape, rough surface and uniform particle size, with the diameter of 1-10mm, and is used for biological filter tanks and high-class adsorption filter materials in deep purification systems of drinking water and reclaimed water sewage disposal systems.

The invention is a manufacturing method for titanium alloy cranial bone dummy, applies to cranial nerves surgery cranial bone renovation field. The invention assembles the dummy based on the CT picture of patient; the character lies in: the computer with universal image processing software and back designing software reconstructs the three-dimension prototype of patient head after dividing the fracture image, designs the dummy of defect part according to the three-dimension prototype, and the designed dummy curved surface is guided into multi-point forming system and quick-prototype system to press titanium network board and produce dummy slice model, finally forms the terminal dummy through comparing and cutting the titanium network board; the invention uses multi-point forming technology to compress the dummy quickly, it can uses the softness character of mouldless multi-point to compress the dummy in order to solves the back springing problem. The cost is low, the speed is high.

The invention discloses a quantum key distribution system for safety communication of an electric vehicle intelligent charging network. The quantum key distribution is realized on the basis of a hierarchy KDC (Key Distribution Centre) mode. The distribution of the quantum key distribution system is performed by a key distribution unit. The key distribution unit comprises a key management module (1) and a key management module (2) of a charging station. The key management module (1) is positioned in an operation management center. Communication and transmission of data and commands are performed between the key management module (1) and the key management module (2) reciprocally via classic channels. Keys are provided for the key management module (2) by the key management module (1) via quantum channels. According to the quantum key distribution system for safety communication of the electric vehicle intelligent charging network, disclosed by the invention, unconditional safety communication of the data is realized, and stability and safety of the network operation are guaranteed.

The invention discloses a surface defect detection algorithm based on machine vision. After images of an object surface are collected, an extreme value filter difference algorithm is adopted for massive defects, and a linear reinforced detector algorithm is adopted for scratch defects. According to the algorithm, the online detection requirement can be met by adopting conventional hardware configuration, and the characteristics of good real-time performance and quantitative production line operation can be achieved; and the characteristics of defect shape and the like are taken into consideration, so that a good defection effect is achieved, and the method is applicable to various different searches can be reinforced. The algorithm can overcome instability, non-qualified production and lowefficiency state of existing surface defect vision detection technology.

The invention discloses a processing method for correcting error of a low-gradient optical mirror surface, which comprises the following steps: firstly acquiring a removal function through experiment, then using a wave surface interferometer to acquire a surface shape error function of an element, dispersing the surface shape error function, programming a processing path at the same time, extending the surface shape error function, establishing a model and solving processing residence time, carrying out numerical control processing by using the solved residence time, identifying error and controlling accuracy for the processed result, so as to finish processing. The processing method has the advantages of high process efficiency, low processing cost and good error correction effect, and can effectively correct the surface shape error of the low-gradient optical mirror surface.

The invention discloses a vehicle speed control system and method of a ramp merge area, and belongs to the field of road traffic control. The system comprises a vehicle-mounted communication device and a roadside control unit; the vehicle-mounted communication device collects vehicle motion information and sends the vehicle motion information to the roadside unit; the road side unit receives information of all vehicles within a control area, makes decision in a concentrated way, manages and controls time when vehicles reaching a merge point in a unified way by utilizing a vehicle time regulation method within the area, forms vehicle behavior control rates in the area according to a time control requirement by utilizing a vehicle behavior optimized control method, and sends the control rateto each vehicle so that the vehicle can arrive at the merge point on time according to the received control rate. A vehicle and road concentrated communication technology is used, vehicle merge timeis controlled and vehicle merge behaviors are optimized in the control area, so that merging with high efficiency and comfort level and low oil consumption is realized for vehicles in the ramp area.