81results about How to "Number of solutions" patented technology

The invention discloses a method for providing augmented reality. The method comprises the following steps: acquiring an on-site scene image through a terminal by using a camera, and displaying the image on a terminal screen; continuously detecting a bar code in the on-site scene image when a target mark is detected in the on-site scene image; analyzing the detected bar code, and acquiring data information in the bar code, wherein the data information comprises marks of corresponding virtual contents; acquiring relevant virtual contents according to the data information of the bar code; overlapping the virtual contents onto a scene displayed on the terminal screen. The invention discloses a system and a terminal for providing augmented reality. Due to adoption of the method, the system and the terminal, more virtual contents can be provided under the condition of limited numbers of augmented reality marks.

The invention discloses an optimal configuration method for a power distribution automatic terminal type. A target function of a two-remote and three-remote power distribution automatic terminal optimal configuration model is established, and the target function includes cost generated by adopting a life-cycle period method and comprehensive social benefits generated by reducing of the outage cost; the average power supply availability of a system serves as the reliability constraint condition of the two-remote and three-remote power distribution automatic terminal optimal configuration model, an analytical method is used for conducting reliability assessment, the constraint condition is used for converting a target function through a penalty function method, and a fitness function is formed; the particle swarm optimization is adopted for conducting the optimal solution, adaptive values of particles are calculated, the adaptive value of each particle is compared with the current entity extreme value and the global extreme value, and the optimal entity value and the optimal global value are determined and updated; whether the maximum number of iterations is reached or not is inspected. The optimal configuration method can solve the problem of the number and the position configuration of two-remote and three-remote power distribution automatic terminals.

The invention discloses a new manufacturing technique of a xylose and relates to a technique for manufacturing the xylose. The technique adopts the technology of electrodialysis recycling sulphuric acid, a bag adopted by a nanofiltration concentration device and a special nanofiltration separation system concentrates the liquid in the technique for manufacturing the xylose at normal temperature, therefore water and other impurities can be removed from the product; the manufacturing technique comprises: 1. pretreatment, 2. hydrolyzation, 3. decoloration, 4. electrodialysis, 5. ion exchange, 6. nanofiltration, 7. concentration, 8. ferment, 9. crystallization, 10. centrifugation, and 11. drying, then the high purity xylose is obtained. The new manufacturing technique of the xylose can not only recycle 50 percent sulphuric acid in the hydrolyze liquid, but also can recycle waste acid and spent caustic produced in the regenerative process of duolite, therefore the dosage of sulphuric acid can be saved and the environment pollution is avoided. The technique solves the problems of scale formation in device in the neutralizing deacidification technique, large usage of duolite in deacidification technique, large usage of devices, large investment, large consumption of acid and alkali, high costs and the like; thus improving the device utilization rate and the service life, decreasing the ash and the acid contents in the hydrolyze liquid, improving the quality of the hydrolyze liquid and enhancing the product quality and separating efficiency.

The invention relates to a radio frequency power amplifier based on a transformer, comprising an input transformer, a driving circuit, a power amplification circuit, an impedance matching network and an output transformer that are successively connected; the input end of the input transformer is respectively connected with a single-end radio frequency input (RFIN) signal and the ground; the output end of the input transformer is connected with the input end of the driver circuit; the single-end radio frequency input signal is converted into a differential signal, and the differential signal is output to the driver circuit; the differential signal of the driver circuit is output to the power amplification circuit after being amplified; and the power amplification circuit is in the cascode structure. In the radio frequency power amplifier, devices, such as an inductor, a capacitor, a transformer and the like are integrated on a substrate, impact on the performance of the amplifier by the complementary metal oxide semiconductors (CMOS) technology is effectively avoided on the premise of furthest utilizing the advantages of the CMOS technology, and circuit efficiency is improved; and compared with the traditional totally-integrated radio frequency power amplifier, the radio frequency power amplifier disclosed by the invention has the advantages of higher power and efficiency and more stable performance.

The invention provides a point cloud division and track matching method for millimeter-wave radar target tracking, and belongs to the field of millimeter-wave radar signal processing. In order to improve the personnel counting accuracy of the millimeter-wave radar under the multi-target condition, the method comprises the following steps: transmitting an electromagnetic wave signal to a to-be-measured space range through the millimeter-wave radar, and receiving a signal reflected back in the to-be-measured space range through the millimeter-wave radar; processing the received signal to obtaina target trace point; aiming at the target plot, gathering the plot into different areas; matching the condensed trace point area with a known track according to conditions, distinguishing the motiontracks of different targets, obtaining the motion state of the personnel in the target area, and updating the counting result in the target area.

The invention discloses an electric vehicle charging station modeling method for reliability assessment of a power distribution network and application of the electric vehicle charging station modeling method. The method is characterized by including the steps: 1, establishing an electric vehicle running status time sequence model; 2, establishing an electric vehicle spatial and temporal distribution model; 3, on the basis of a dijkstra algorithm, calculating the sum of power batteries available for centralized charging in each charging station; 4, establishing a charging station output time sequence model based on reliability assessment; 5, adopting a Monte Carlo simulation method for realizing reliability assessment of the power distribution network with electric vehicles, and carrying out statistics of reliability indexes. Establishment of a more practical electric vehicle output model can be realized, centralized optimal control of the electric vehicles is improved, utilization rate of the electric vehicles serving as energy storage devices is increased, pressure of power shortage in load peak of the power distribution network is relieved, and accordingly reliability of the power distribution network can be further improved.

The invention discloses a mirror field optimization design method of a cornfield and tower type solar thermoelectric system. The mirror field optimization design method includes the steps of using the product of the comprehensive optical efficiency of a mirror field and a land coverage rate of the mirror field as an optimization target, and optimizing the distance between the first row of heliostats in the mirror field and a heat absorber in the mirror field, the distance between every two rows of the heliostats and the distance between every two lines of the heliostats through a simplex algorithm so that the value of the optimization target can be the largest when the number of the heliostats and the arrangement of the heliostats are under a specific condition. According to the mirror field optimization design method, the contradiction between the number of the heliostats and the comprehensive optical efficiency of the mirror field is solved, and the mirror field optimization design method has better robustness and stability through the simplex algorithm. The comprehensive optical efficiency of each cornfield type small mirror field arranged through the mirror field optimization design method is more than 80% and is improved by 10% compared with the comprehensive optical efficiency of an existing ordinary mirror field.

The invention relates to a gas turbine lubricating oil system metal shavings online monitoring system which comprises a coil sensor and a data processing device. Two ends of the coil sensor are connected to a main oil return pipe of a lubricating oil booster pump to a lubricating oil filter through adapter flanges. The data processing device processes a voltage signal outputted by the coil sensorto obtain size and quantity of metal shavings in the main oil return pipe. According to the system, the problem of the real-time monitoring of the size and quantity of lubricating oil system metal shavings is achieved, and the safe and reliable use of a gas turbine is ensured from the design structure. By using the system of the invention, the completion of one time of online monitoring just takesa few minutes to several tens of minutes, and collected data can be recorded in real time and automatically stored in a database of an upper computer. The online monitoring device of the invention can directly analyze oil in the oil return pipe, and the problems of unrepresentative sampling and secondary pollution are avoided.

A split horizontal type dish washing-disinfecting machine which can be placed on the table is composed of a horizontal type washer box and a water tank, wherein, the horizontal type washer box is placed on the water tank or on the table above the water tank, the horizontal type washer box and the water tank realize split connection through high voltage water pipe, circulating pipe and electrical lines, to achieve single-cavity connection and multi-cavity connection, so that users can do high-performance selection against different amounts or different forms of tableware, the machine has automatic washing and disinfecting and a separate disinfection functions, which not only improves the efficiency of washing and disinfection, but also saves storage space, has pick-and-place convenience, can be operated standing to make it more humanized and rationalized.

The invention discloses a fast screening method for the battery internal resistance and capacity, wherein the method is used for rapid screening of battery monomers decommissioned from new energy vehicles and having the same specifications. The method comprises the steps: inspecting the appearance of multiple battery monomers through visual inspection, removing battery monomers with unqualified appearance, and thus obtaining battery monomers with qualified appearance; putting the battery monomers with qualified appearance into a parallel device, and carrying out parallel equalization for the time of tp, to obtain parallel-equalized battery monomers; putting the parallel-equalized battery monomers into a series device, carrying out series charging and discharging for the time of ts, recording the voltage of the battery monomers at the end moment of series charging and discharging, classifying the battery monomers according to the voltage, carrying out capacity sampling fine screening ofthe classified battery monomers, and thus obtaining fine-screened battery monomers; and calculating the capacity of the fine-screened battery monomers, to complete screening of the capacity, and determining the internal resistance of each battery monomer according to the voltage jump change of each battery monomer at the end moment of series charging and discharging.

The invention relates to a multi-system optical fiber access system for optical terminals, which includes a near-end computer, a remote computer, an optical fiber module, and an optical fiber cable. machine connection. Compared with the prior art, the present invention has the advantages of less useless signals, low cost, simple networking and the like.

The invention discloses a software quality assessment method, device and equipment and a computer storage medium. The software quality assessment method comprises the following steps: obtaining demandinformation of a to-be-online demand; Converting the demand information into a data vector corresponding to the demand information; Determining a risk prediction model corresponding to the to-be-online demand according to the data vector; And inputting the data vector into the risk prediction model and obtaining risk information corresponding to the to-be-online demand. According to the embodiment of the invention, the risk information of the to-be-online demand can be accurately evaluated by using the risk prediction model.

The invention discloses an emotion dictionary building and emotion calculation method. A high-quality artificial marking Chinese language database Ren-CECps is used as an initial seed emotion word; under the combination of Chinese thesauruses and internet Chinese text languages (non-marked), emotion synonyms are expanded, and a kernel function method is used on the emotion calculation method; therefore, the problems of long training time and low accuracy of an emotion calculation process are solved.

The invention provides a manufacturing method for low-carbon thin strip steel containing acicular ferrite. The manufacturing method comprises the following steps that (1), smelting of molten steel is performed, the molten steel comprises, by mass percentage, 0.02-0.18% of C, 0.2-0.6% of Si, 0.5-1% of Mn, 0.002-0.0035% of Al, 0.05-0.3% of Zr, 0.003-0.15% of P, 0.001-0.02% of S, 0.003-0.015% of O, not larger than 0.004% of N and the balance Fe; (2), preheating of a tundish is performed, the molten steel in a steel ladle is poured into double-roller strip continuous-casting equipment through the tundish, the molten steel is solidified and guided out through a roller seam of a cast roller, and a cast strip is obtained; (3), the cast strip is cooled to 900-1,000 DEG C after being guided out, and one-path hot rolling begins; and (4), the cast strip is water-cooled to 550-620 DEG C and curled, and the low-carbon thin strip steel containing the acicular ferrite is obtained. According to the manufactured low-carbon thin strip steel containing the acicular ferrite, the content of the acicular ferrite ranges from 40% to 90%, the structure of the low-carbon thin strip steel is refined effectively, and the problems that a traditional production process of the low-carbon thin strip steel is complex, high in cost, large in energy consumption and the like are solved.

The invention belongs to the field of communication, the invention provides an SCMA codebook design method with good bit error performance. the poor bit error rate performance can be ensured; the complexity of codebook design can be greatly reduced; the invention relates to a suboptimal SCMA codebook design method with low complexity, which comprises the following steps of: 1, dividing a sparse coding multiple access SCMA codebook optimization problem into k sub-problems, constraining the average power of sub-codewords on each problem dimension, and maximizing the minimum Euclidean distance between the sub-superposition codewords at the same time; 2, vectorizing the kth dimension sub-codeword, and expressing the SCMA codebook optimization problem as a quadratic constraint quadratic programming problem; step 3, solving the quadratic constraint quadratic programming problem by using a positive semi-definite relaxation method to obtain a kth dimension sub-code word; and step 4, accordingto the mapping matrix, allocating the sub-code words of all k dimensions to corresponding users to obtain a complete SCMA codebook. The method is mainly applied to SCMA codebook design occasions.

The invention discloses a method for determining the number of optimal communication agent nodes in a cloud platform with an aim to solve the problem that the number of the optimal communication agent nodes in the cloud platform cannot be determined in the prior art. According to the technical scheme, the method for determining the number of the optimal communication agent nodes in the cloud platform includes that the cloud platform comprising a control node server and multiple compute node servers is structured, and multiple virtual machines are structured on each compute node server; the cloud platform is set up on the basis of an OpenStack Havana version; multiple communication agents are structured on the servers of the cloud platform and used for managing of the virtual machines. The acquired number of the optimal communication agent nodes in the cloud platform can be determined according to total time consumption in the map phase (namely the distributed processing phase), total time consumption of the Reduce phase (namely the merging processing phase) and time consumption of Map and Reduce process (namely big-data processing process).

The invention provides a smart retail cabinet based on weighing and visual recognition. The smart retail cabinet comprises a commercial freezer cabinet, an industrial personal computer, a display device, weighing sensors, a monitoring camera, an auxiliary recognition camera, a human-computer interaction module, an electronic price tag controller, a color liquid crystal display screen electronic price tag, a temperature sensor, a Hall sensor and an electric plug lock assembly. The auxiliary recognition camera for monitoring the opening process of a cabinet door is arranged in the display device, wherein the viewing monitoring angle of the auxiliary recognition camera is the moving range of the cabinet door. The weighing sensors are implanted in the bottoms of all layer racks and are used for tracking weight information of all cargo tracks. In addition, the invention also discloses a method for operating a smart retail cabinet based on weighing and visual recognition. According to the invention, on the basis of integration of the weighing and visual recognition modes, the success rate of commodity identification is up to 99%; because of level division of the layer racks and the precise design of the cargo track width, a commodity number problem is solved; and the user makes payment for consumption simply and conveniently and the basic information of the user can be obtained, so that the precise marketing positioning is realized.

A vegetation concrete improved microbial agent comprises the following raw materials in parts by weight: a mixed microbial fermentation powder, bentonite, diatomite, magnesium sulfate, zinc sulfate and boric acid, wherein the mixed microbial fermentation powder is prepared by the steps of carrying out press filtration, flash evaporation and drying of amplified cultured azotobacter chroococcum, bacillus megatherium and bacillus mucilaginosus, to respectively obtain dry powders of azotobacter chroococcum, bacillus megatherium and bacillus mucilaginosus, and mixing the dry powders according to a certain proportion. The vegetation concrete improved microbial agent and the preparation method thereof provided by the invention can solve the problem that the number and types of microorganisms cannot be increased as soon as possible; through the proportion of different beneficial microorganisms, a physicochemical environment of soil is changed, the biological chemical activity of the soil is improved, the fertilizer utilization ratio and the use effect are improved, ultimately, the growth of plants is promoted, and the purpose of the vegetation concrete fertility sustainability is achieved.

The invention discloses a visual detection system for a fuse box, and the system comprises an industrial camera installed in a camera obscura, the industrial camera triggers photographing through an infrared photoelectric switch, and a to-be-detected single board passes through the camera obscura through a transmission belt installed at the bottom of the camera obscura. During detection, the single board moves along with the conveying belt to block infrared rays emitted by the infrared photoelectric switch perpendicular to the movement direction of the single board, and the industrial camera is triggered to shoot pictures. The industrial camera sends collected pictures to the computer; visual detection software is arranged in the computer; visual detection software of the computer performspicture recognition and comparison on the shot picture and a preset template picture serving as a standard; if the comparison result conforms to the preset error range, the visual inspection of the single board is considered to be qualified, and the inspection of the next fuse box single board is carried out; and if the comparison result does not conform to the preset error range, an alarm is given out, and the content exceeding the error range is displayed on a computer display device. According to the invention, the fault part can be found in an assisting manner, and the product percent ofpass is improved.

It is a numerical method for solving an inverse problem about the shape design of aerodynamic body in inviscid subsonic flows. This method transfers the original Euler equations into the stream-function plane, where it solves the Riemann problem across the streamline presenting the solid-wall and obtains the geometry of the solid-wall concurrently.

The two-dimensional coordinates of a vertex are extracted in each of a top view and front view and, if their X-coordinates are equal to each other, the combination of their Y-coordinate values is determined to be the two-dimensional coordinates of a candidate vertex in a side view. Then, candidate line segments for the side view are extracted from the line segments connecting two candidate vertices, excepting not only those line segments for which no corresponding line segment exists in the top and front views, but a so those line segments for which corresponding horizontal or vertical line segments exist in the top and front views, and which a e not horizontal or vertical in the side view.

The invention relates to an automatic printing device and method based on a network service system. Ultra-long-distance automatic printing is realized, a process from user request transmitting to printing is finished, the problems that in the daily life, printing time is generally long, printing places are less and the like are solved, and the labor cost and the time cost are greatly saved. The problems that in common colleges and universities, the numbers and positions of printing stores are insufficient, students sometimes need to walk a long distance to find a printing store, and if materials need to be collected in a short time, the students will feel difficult to print the materials are solved.

The invention discloses a backboard interface SMI and UART multiplexing method, and can solve the technical problems that in the design process of an existing router, the number of main control singleboard connectors needing to be designed and the number of layers of a backboard are large, and the design is complex. Based on a main control single board, a backboard unit and an interface single board, the method comprises the following steps that S100, an interface card is powered on, and whether a CPU exists on the single board or not is judged through a Uart interface of a CPU; S200, a body_ on signal of the interface single board and an SMI register are set; S300, the main control logic receives the body _ on signal of the interface single board, and an SMI interface is started to access an interface single board SMI register; And S400, whether the backboard interface is an SMI interface or not according to the value of the register is judged, the backboard interface is set as a Uart interface and the SMI interface is closed if not. According to the backboard interface SMI and UART multiplexing method, the number of connectors of a backboard main control slot position can be reduced, and the design of an interface single board cpu is reduced.