60results about How to "Avoid diversity" patented technology

Previous MIMO systems have used spatially diverse antenna elements in order not to reduce the number of orthogonal channels that can be realised. The present invention recognises that this leads to large antenna sizes, as compared to multiple beam antenna systems which use closely spaced antenna elements. In order to provide a compact antenna unit, while still allowing a MIMO system to be exploited, the present invention recognizes that polarization diversity only can be used in a MIMO system without the need for spatially diverse antenna elements. Closely spaced antenna elements are used and this enables a compact MIMO antenna unit to be provided. In addition, such MIMO systems with polarization diversity but no spatial diversity can advantageously be used in line of sight situations and also combined with multi-beam antenna systems to further increase capacity.

The invention discloses a generation method of an image description from a structured text. The generation method comprises the steps of downloading pictures from the internet to form a picture training set; conducting morphological analysis on descriptions which correspond to the pictures in the picture training set to form the structured text; using an existing neural network model to extract convolution neural network characteristics of the pictures in the training set, and using <, picture characteristics and structured text < as inputs to form a multitasking recognition model; using the structured text extracted from the training set and a description which corresponds to the structured text as inputs of a recurrent neural network, and conducting training to obtain a parameter of a recurrent neural network model; inputting the convolution neural network characteristics of an image ready to be described, and obtaining a predicted structured text through the multitasking recognition model; inputting the predicted structured text, and obtaining the image description through the recurrent neural network model. Compared with the prior art, a better image description effect, accuracy and sentence variety can be generated through the method, and the generation method of the image description from the structured text can be effectively popularized in an application of image retrieval.

The invention discloses a parking payment system, which is characterized in that a vehicle owner terminal registers on a parking platform, logs in a platform account and opens an ETC payment functionof a specified license plate number; a toll collection system comprises a license plate recognition camera and a control server, the license plate recognition camera monitors the motion condition of avehicle on a lane, captures a vehicle head when finding that the vehicle is about to enter a parking area, acquires a vehicle image, performs image recognition on the vehicle and a license plate, generates a license plate number and sends the license plate number to the control server; the control server calculates the parking duration according to the vehicle parking time and generates a parkingfee payment order, and the control server sends the license plate number and the payment order to the parking platform for ETC payment; and the parking platform matches the license plate number withthe platform account, judges whether the platform account corresponding to the license plate number opens an ETC payment function, and judges whether the license plate number is in an ETC blacklist.

The invention discloses a method for adjusting and controlling mixed culture of floating microalgae by bacillus. The microalgae, the dominance degree of which is more than 0.15, is selected and placed into a culture solution to carry out mixed culture, wherein in the culture solution, the concentration of nitrogen is 12 to 16 mg/L, the concentration of phosphorus is 2 to 6 mg/L and the concentration of iron is 0.10 to 0.20 mg/L; during the mixed culture, the Bacillus licheniformis is adopted for adjustment and control; and the culture conditions comprise that the temperature is between 26 and 28 DEG C, the salinity is 12 to 18 per mill, the pH is 7.5 to 8.0, the illumination intensity is 4,000 to 5,000Lx, and the ratio of light to darkness is 12 hours to 12 hours and 14 hours to 10 hours. By adopting the method for carrying out the mixed culture on the microalgae by using the bacillus in a mixed culture system, the growth of the microalgae is balanced, the stability is good, single biological diversity of algae phases in the mixed culture system can be avoided, and extreme advantages or disadvantages on the number of the microalgae can be avoided.

A composite foaming material is prepared from foamed polystyrene particles, silicate cement, powdered coal ash, affinity agent and foaming agent through proportional mixing. Its in-situ application method includes such steps as foaming the polystyrene particles by portable electrothermal steam foaming machine, stirring cement mortar by stirrer, sequentially mixing with others, stirring, and in-situ pouring.

An ultra-short-term wind power plant power prediction method combined with meteorological factors belongs to the technical field of power generation power prediction of a power system, and comprises the following steps: step 1, preprocessing wind power historical data and NWP meteorological data, supplementing missing data and modifying abnormal data; 2, generating a wind power prediction model; and 3, carrying out future wind power prediction by utilizing the trained model and future NWP meteorological data. According to the method, new firefly individuals are periodically added into the population by using a chaos strategy in the iteration process, so that the prediction precision of the ultra-short-term wind power is improved, and a favorable basis is provided for scheduling personnel of a power grid department to perform short-term scheduling decision arrangement.

The invention discloses a time sequence control device for a frequency scanning beam. The device comprises a signal processor and a communication device. The signal processor comprises a programmable device and a static random access memory. The programmable device adopts an FPGA (Field Programmable Gate Array) and logically comprises a signal processing algorithm module, a beam time sequence generation module and a beam parameter control module, wherein the beam time sequence generation module and the beam parameter control module are highly integrated with the signal processing algorithm module. The static random access memory is connected with the FPGA, and the communication device and the signal processor are integrated on the same board card. The invention further discloses a time sequence control method for the frequency scanning beam. The device and the method have the advantages that the structure is optimized, an interface is simplified, and the cost is low; the time sequence control method is implemented through the FPGA in the signal processor in a fully-digitized way; the design is flexible and efficient, and the reliability is high; the device and the method are particularly applicable to medium-and-small-scale radar systems and are mainly applied to the field of signal processing and control.

The invention relates to a method for evaluating the corrosivity index of transformer station soil to a copper grounding grid, and aims to solve the problem that impact of two factors of annual mean environmental temperature and soil air capacity of the region of a transformer station are not taken into consideration, so that the evaluation result is inaccurate. The method is characterized by comprising the following steps: step I, collecting a soil sample in the transformer station; step II, conducting physical and chemical property index detection on the soil sample; step III, evaluating the corrosivity index of the soil sample to the copper grounding grid. The method is applied to the field of transformer stations.

A magnitude-phase control chip and a bus type data transmission assembly are provided in embodiments of that present application. The chip includes: a data input terminal; a shifter for transmitting address bits of input data to a comparator; or, transmitting the data bits of the input data to a latch comparator for comparing the address bits of the input data with the preset encoding bits, and outputting an enable signal if the address bits of the input data are matched; a latch for latching data bits of input data and outputting transmission data based on the enable signal; and a data outputterminal. In this scheme, only the coding pins of the amplitude-phase control chip are reserved, and the coding of the amplitude-phase control chip is defined in the design stage of the channel boardlevel, so the purpose of post-defining the chip coding is realized, the amplitude-phase control chip is more unified, the diversity of the chip is effectively avoided, the cost is saved, and the assembly is convenient.

The invention discloses a fusion positioning method based on a mobile terminal, a storage device and a mobile terminal. The fusion positioning method based on a mobile terminal includes the steps: obtaining one initial position by initializing a fusion positioning algorithm, determining the initial position of executing fusion positioning by combining the initial position obtained through initialization of the fusion positioning algorithm with turning behavior detection, taking the determined initial position as the starting point to execute PDR of the first reserved step number, taking the last node of the locus with the highest probability after a plurality of reserved step number of PDRs are executed, and if a turning behavior occurs during the process of executing a plurality of reserved step number of PDRs, taking the position at which the turning behavior occurs as the starting point to execute PDR. The fusion positioning method based on a mobile terminal alternatively uses a plurality of positioning modes, fuses multi-source data, and improves accuracy and velocity of positioning.

The invention discloses an acceleration test box and a pile foundation bearing capacity dynamic test method based on multi-point test. The acceleration test box is provided with an acceleration sensor, wherein one side of the acceleration sensor is provided with a friction pad, and the other side is provided with an airbag. The pile foundation bearing capacity dynamic test method based on the multi-point test comprises the following steps: dividing a long pile into limit single-degree-of-freedom mass points, and arranging the acceleration text box at a middle point of a pile section; knocking on the top of the pile by virtue of a heavy hammer, so that a pile body achieves a limit bearing capacity; obtaining a velocity-time course by virtue of an acceleration-time course of each pile section obtained through integration, and obtaining a displacement-time course by virtue of an integration velocity-time course; obtaining a transfer function of each pile section by using the time courses and combining a power balance equation of the pile section; and obtaining a load displacement curve of the entire pile by using a load transfer method, and determining the limit bearing capacity of the entire pile according to relevant specification. In the process of determining the limit bearing capacity, all parameters can be calculated by virtue of the measured data, and the diversity of results can be avoided. The acceleration test box can be recycled, and the test cost is decreased.

The invention relates to a hydraulic hammering type full-automatic soil sampling device and a control method thereof. Compared with the prior art, the defect that the analysis test result is influenced by large soil sample disturbance caused by manual soil sampling is overcome. A notch is formed in the upper bottom edge of a fixing frame, a soil scraping piece is installed on the upper bottom edgeof the fixing frame and located at the notch, the soil scraping piece is located over a flow guide cylinder, the soil scraping piece is oval, the size and the shape of the soil scraping piece are thesame as those of the inner wall of a soil sampling cylinder, a sliding groove is formed in the side portion of the flow guide cylinder, the size and the shape of the sliding groove are the same as those of the soil sampling cylinder, and when a double-acting hydraulic cylinder controls the fixing frame to move to the farthest end, the soil scraping piece is tangent to the longitudinal movement track of the inner wall of the soil sampling cylinder. Full-automatic processing of soil sampling can be achieved, the diversity of manual operation and soil disturbance are avoided, and the device canbe suitable for large-area and high-workload field soil component monitoring and collecting.

The invention discloses a method and a system for processing a geographic information symbol. The method for processing the geographic information symbol comprises the following steps of: adding a graphic element of the geographic information symbol, and editing the graphic element according to a preset style and related attributes to form the geographic information symbol; performing normalized parameter setting on the geographic information symbol; and storing the geographic information symbol, and loading in an electronic map. By the method and the system for processing the geographic information symbol, a management mechanism is updated by a unified symbol library, a set of perfect symbol making process is formed, and the editing and operating functions of different types of symbols such as vectors, grids, Truetype and the like are provided.

The invention discloses a modular foundation pit steel truss supporting structure which is compose of a single row or a plurality of rows of plane truss structures. Each plane truss structure comprises basic structure units and edge components and is mainly formed by splicing the basic structure units. The basic structure units located at the edges of the two ends of the plane truss structure are connected with the edge components. Each plane truss structure is formed by splicing the basic structure units along a row. Every two adjacent basic structure units are connected through a middle connecting node, and the spliced basic structure units at the two ends are connected with the edge components through end connecting nodes. Each basic structure unit is composed of two chord members and a diagonal web member, wherein the two chord members are arranged in parallel and are connected into a whole through the diagonal web member. The modular foundation pit steel truss supporting structure has the stressing characteristics of being large in bending bearing capacity and large in anti-bending stiffness and meanwhile has the characteristics of being unified in specification of the basic structure, high in universality, high in reutilization rate, easy to transport and install on site and the like.

The invention belongs to the technical field of sewage treatment, and particularly relates to a composite carbon source for biological denitrification and a preparation method and application thereof. The composite carbon source for biological denitrification comprises the following components: acids, alcohols, saccharides, inorganic salts, polymethacrylate, growth factors and trace elements. The composite carbon source for biological denitrification has various components, and can effectively avoid the problem that the diversity of microbial flora in activated sludge is reduced due to long-term use of a single carbon source. In addition, the composite carbon source for biological denitrification disclosed by the invention is small in relative molecular weight, can be easily utilized by denitrifying bacteria, improves the denitrification efficiency, and can be quickly degraded, so that the effluent meets the national COD (Chemical Oxygen Demand) standard. The composite carbon source product for biological denitrification is safe, non-toxic, scientific, reasonable, simple in production process and convenient to popularize.

The invention belongs to the technical field of multi-material and multi-structure mid-infrared optical fiber preparation, and more particularly, relates to a low-cost batch preparation method and system of a mid-infrared optical fiber with an adjustable material and structure. The structure design of a crucible is used to realize control of a fiber shape, a double crucible method is used to makean initial preform, and the initial preform is used as a base structure to prepare a multi-material and multi-structure mid-infrared optical fiber preform by combination with a high-performance polymer film winding method, and a batch of highly-flexible, multi-material, multi-structure, and low-loss mid-infrared optical fibers are prepared by using a hot drawing method, so that the problem of core-cladding interface defects, impurity introduction, and tedious preparation process when chalcogenide glass fibers are prepared by the existing optical fiber hot drawing method is solved, and the problem of single structure, limited materials, uncontrollable core-cladding ratio, and high cost caused by high use amount of chalcogenide glass when chalcogenide glass fibers are prepared by the existing double crucible method is solved.

A clutch sleeve is provided for a shift clutch having a synchronizing device, which includes, but is not limited to a clutch body (8,9), which is connected in a rotationally-fixed manner to gear wheels (4,5) mounted so it is rotatable on a shaft (2) and has coupling teeth (30) and a friction cone as well as synchronizing rings (12,13) having a counter cone and blocking teeth (28), and which has shift teeth (31,32), the clutch sleeve (16) having shift teeth (31,32), which are designed in such a manner that a first group of the shift teeth (27) cooperates with the blocking teeth (28) until a synchronized speed is reached and a second group of the shift teeth (29) engages in the coupling teeth (30) after the synchronized speed is reached.

The invention provides a method and apparatus for realizing civil aviation message processing. The method comprises the steps: acquiring convention configuration parameters for each retransmitter, wherein the convention configuration parameters include the identifier, the connecting mode, the message type, the coding mode, the decoding mode and the message protocol parameter; creating a logic channel corresponding to the connecting mode; when a message transmitted from one retransmitter is monitored, receiving the data flow of the message and generating a message with the message type being the same with the obtained message after processing the received data flow according to the obtained identifier, decoding mode and message protocol parameter of the retransmitter; transmitting the generated message to a client; and when the client transmits the message to the retransmitter, processing the message to be transmitted and then transmitting the message to the retransmitter through the created logic channel. The technical scheme of the method and apparatus for realizing civil aviation message processing can be adaptive to various network environments and various message types and coding modes, and can uniformly and quickly realize the related functions for civil aviation message switching, such as processing, receiving and transmitting messages.

The invention provides an automobile air conditioner compressor cylinder block boring machining tool. The automobile air conditioner compressor cylinder block boring machining tool comprises a bottomplate. A base is fixedly arranged in the middle of the bottom plate. A pressing air cylinder is fixedly arranged on the part, located on the periphery of the base, of the bottom plate. A pressing plate is connected with a piston rod of the pressing air cylinder. A positioning ring is fixedly arranged at the top end of the base. An elastic mandrel is fixedly arranged in the center of the positioning ring. A pushout ring is movably arranged on the periphery of the elastic mandrel in a sleeving mode. A lifting air cylinder is fixedly arranged in a center hole of the base. A mounting plate is horizontally and fixedly arranged at the piston end of the lifting air cylinder. A plurality of connecting rods are fixedly arranged on the mounting plate. The top ends of the connecting rods penetrate through the positioning ring and then make contact with the bottom end of the pushout ring. Through the tool, the compressor cylinder block boring machining precision and machining efficiency can be improved, the production cost is reduced, operation is simple, rapid and convenient, the product quality can be improved, and the actual application effect is good.

The invention discloses a synchronous solid-liquid separation crawler conveying structure for an air excitation negative pressure system, belonging to the technical field of solid-liquid separation devices, and used for solving the problem that the existing solid-liquid mixture conveying is low in efficiency and uncontrollable in speed. A crawler body of the structure comprises a plurality of crawler units which are vertically and horizontally combined. The crawler units include pin rolls, side beams, first reinforcing ribs, second reinforcing ribs and connecting pins, wherein each side wall of left and right ends of each pin roll is connected to one end of one side beam; the other ends of the two side beams are connected to two pin rolls of adjacent crawler units; each two side beams areperpendicular to the corresponding pin roll and is provided with a reinforcing beam therebetween; each crawler unit has two first reinforcing ribs and two second reinforcing ribs; the pin rolls are axially provided with pin roll holes and are connected to each other through the connecting pins; the two side beams, the reinforcing beam, and the pin roll of each crawler unit form a first positioninghole matching a tooth of a driving wheel.

The invention discloses an electricity price management method and apparatus. The method includes the following steps: for an electricity price version of one region, establishing one electricity price management model; the electricity price management model is: P=F (S, D, K), wherein S represents an applicable region range, D represents electricity price information dimensional set number, K represents part of the electricity price, and P represents power transaction price; establishing a path set number T, storing the value of power transaction price P, the serial number of the applicable region range, the serial number of the electricity information dimensional set number, and the value that constitutes the part of the electricity price K in the path set number T; and based on the electricity price management model and the path set number T, finding the power transaction price P. the method improves convenience of increasing electricity price management and electricity settlement.

A magnetically connected block, including an electrically conductive connector, the electrically conductive connector defining therein a cavity and a magnet being arranged in the cavity, the electrically conductive connector being provided with a contact surface and a conductive device being provided on the contact surface. In this way, the electrically conductive connector achieves the electrical conduction between blocks by way of the conductive device and achieves the connection between two blocks by way of the magnet to ensure the connection by attraction and the electrical connection between blocks. Owing to the arrangement of the magnet, blocks can be attracted onto a magnetic attraction board surface to facilitate teaching use.