18results about How to "Increase update rate" patented technology

The invention relates to a wireless communication system and method based on reconfigurable FPGA componentization development, through key technologies such as elaborately designing a CPU side FPGA proxy component and an FPGA side static / dynamic component connection control matrix and the like, the waveform of an FPGA component can be quickly and dynamically reconfigured, the waveform reconfiguration speed can reach the millisecond level, and the reliability of the system is improved. Compared with the prior art, the method has the advantages that the BIT file code of the whole FPGA is directly updated to reach the second level, the code updating rate of the system can be increased by about 1000 times, the method can well adapt to the instantly changing frequency spectrum condition in a modern emergency rescue scene, high-speed real-time reconstruction switching is automatically carried out on the waveform, and the reliability of wireless communication is powerfully guaranteed.

The invention discloses a text recall system and method based on similarity retrieval. The method comprises the following steps: S1, receiving a query text input by a user; s2, extracting a short text semantic feature vector for the short text, and extracting a long text semantic feature vector for the long text; s3, constructing an initial vector topological structure; s4, performing dynamic adjustment on the initial vector topological structure in the vector library system by adopting an improved neural topological optimization algorithm; s5, generating local topological feature representation of each short text and each long text based on the optimized vector topological structure; s6, determining potential associated fragments of the query request text; s7, sorting the query request texts; and S8, returning a plurality of query request texts with the highest similarity in the sorting result as a retrieval result and outputting the retrieval result. According to the method, the efficiency and the accuracy of text recall are remarkably improved.

The invention discloses a thin-layer high-density filler which is prepared by combining an optimized weaving method, weaving density and a bundling mode on the basis of a plain woven wire mesh filler. The novel weaving method enables the weft number of the thin-layer high-density filler to be larger than that of plain woven wire mesh filler under the condition of the same warp number, and the thin-layer high-density filler has the characteristics of high specific surface area, high mass transfer efficiency, low flow pressure drop and the like. A large number of micropores exist on the surface of the thin-layer high-density filler, the wettability is extremely good, the transverse diffusion effect of liquid in the filler can be greatly enhanced due to the fact that the weft density is large, the performance is particularly outstanding in the processes of large-spraying-density rectification and the like, and the pressure drop is about 30%-50% lower than that of a common plain woven filler. The filler provided by the invention mostly adopts stainless steel wires as raw materials, and has the advantages of low cost, large flux, stable performance and low metal exudation rate, so that the filler is difficult to replace in the field of heat pump rectification, high-purity electronic chemical separation, intermediate separation and isomerism separation production.

The invention discloses a point cloud intelligent cutting and dynamic optimization method based on edge computing, and belongs to the technical field of intelligent traffic systems and edge computing, and the method comprises the steps: collecting three-dimensional point cloud data through a multi-line laser radar disposed on an RSU; generating a three-dimensional bounding box through a three-dimensional target detection network in an RSU edge calculation unit, generating an ROI mask, expanding a buffer region, and performing adaptive region cutting on the point cloud to form an ROI point set and a background point set; a perception-driven cutting decision is realized, and ROI extraction is converted into a self-learning process based on semantic features from fixed threshold judgment; voxelizing the non-uniform resolution point cloud, generating a unique hash index for each voxel unit, comparing a hash set of a current frame with a hash set of a previous frame, extracting newly added and disappeared point sets, and constructing a differential data packet according to a change ratio; while high timeliness is kept, data redundancy is reduced, and the point cloud updating rate and the incremental transmission efficiency are improved; and dynamic optimization of communication-calculation cooperation is realized.

A bipolar plate suitable for a trapezoidal liquid flow battery or a battery stack, the bipolar plate is a trapezoidal flat plate structure, and an isosceles trapezoidal area for contacting an electrode is provided in the middle of one side surface or two side surfaces of the plate; the electrolyte flows into the electrode area from the lower bottom side of the trapezoidal electrode area and then flows out from the upper bottom side of the trapezoidal area, the lower bottom side of the trapezoidal area flowing in is called the inlet side side of the electrode area, and the upper bottom side of the trapezoidal area flowing out is called the outlet side side of the electrode area; two groups of groove groups consisting of one or more quadrilateral grooves are respectively provided on the left and right waists of the trapezoidal electrode area toward the middle of the electrode area, which are called guide grooves, one of the two groove groups is arranged near the inlet side, and the other is arranged near the outlet side. By causing the electrolyte to flow directly from the middle of the inlet cross section to the vicinity of the outlet wall, the concentration of active substances in the outlet attachment is increased, thereby effectively reducing the concentration gradient of reactive active substances in the inlet and outlet directions and reducing polarization.

The present invention relates to a wireless communication system and method based on reconfigurable FPGA component development. Through the ingenious design of key technologies such as the connection control matrix between the FPGA proxy component on the CPU side and the static / dynamic component on the FPGA side, the waveform of the FPGA component can be quickly and dynamically reconstructed. The waveform reconstruction speed can reach the millisecond level, which is much higher than the second level achieved by directly updating the BIT file code of the entire FPGA at present. The system code update rate can be increased by about 1000 times, which can well adapt to the rapidly changing spectrum conditions in modern emergency rescue scenarios, automatically perform high-speed real-time reconstruction and switching of the waveform, and effectively ensure the reliability of wireless communication.

The invention discloses a staged cooling distillation tower, relates to the technical field of distillation equipment, and aims to solve the technical problem of poor condensation effect due to the adoption of a single or two-stage cooling structure in a conventional distillation tower cooling system. A pre-cooling system, a main cooling system and a rear cooling system are designed, and a cooling medium of 20-30 DEG C circulates in the pre-cooling system; the main cooling system serves as a core condensation unit and is matched with a low-temperature cooling medium of-10 DEG C to 0 DEG C, shock cooling of steam can be achieved within an extremely short time, a cooling agent of 10 DEG C to 20 DEG C of the post-cooling system is fully mixed with residual steam in a mist form, and secondary condensation is conducted on a trace amount of uncondensed steam. The three-stage cooling system disclosed by the invention forms a full-process condensation system of buffering, shock cooling and fine treatment through temperature gradient control, so that the condensation effect of the distillation tower is optimized, and products in steam are better separated.

The present application relates to the technical field of organoid culture, and specifically discloses a culture medium for musk gland organoids and its preparation method and application. The present application discloses a culture medium, which uses DMEM / F12 as the basic culture medium; contains the following concentrations of components as functional additives: albumin, B‑27, HEPES, glutamine, N‑acetyl‑L‑cysteine, niacinamide, growth factor, Wnt3a, A83‑01, Forskolin, penicillin, streptomycin, hydrocortisone, insulin; the growth factor is EGF and bFGF with a weight ratio of 350: (11‑21). The present application also discloses a method for preparing the above-mentioned culture medium and its application in musk gland organoid culture. The culture medium of the present application can be used to obtain musk gland organoids with stem cell characteristics, and the cell activity is high.

A bipolar plate suitable for rectangular liquid flow batteries or battery stacks, the bipolar plate is a rectangular flat plate structure, a rectangular area for contacting an electrode is provided in the middle of one side surface or two side surfaces of the plate, which is called the electrode area; the electrolyte flows into the electrode area from the rectangular lower side of the electrode area and then flows out from the rectangular upper side, the rectangular lower side for inflow is called the electrode area inlet side, and the rectangular upper side for outflow is called the electrode area outlet side; a group of grooves consisting of more than two trapezoidal grooves are provided on the rectangular left side and right side of the electrode area toward the middle of the electrode area, which are called trapezoidal flow guide grooves. The bipolar plate has a simple structure and is easy to process. By promoting the electrolyte to flow toward the left and right walls of the electrode area, the uniformity of electrolyte distribution is effectively improved, thereby alleviating the local effect and improving battery performance.

The invention relates to the technical field of simulation models, and particularly discloses a three-dimensional simulation model for a ship, which comprises a ship simulation module, a collaborative ship simulation module, a target ship simulation module, a sea condition simulation system, a 3D GIS three-dimensional geographic simulation module and a cluster management system. Visual radar synchronization can be achieved, complex sea conditions can be reproduced, the training effect of tug related personnel is improved, and the safety and efficiency of offshore operation are improved.

The air energy heat pump with the constant temperature function comprises a water tank and a heat exchange assembly, a heat preservation layer is arranged in the water tank, a water outlet is formed in the right side of the water tank, a pressure relief opening is formed in the upper portion of the water tank, a temperature sensor is installed below the water tank, and the heat exchange assembly is installed on the left side of the water tank. And the heat exchange assembly comprises a spiral pipe and a heat preservation shell, the periphery of the spiral pipe is wrapped with the heat preservation shell, the lower portion of the heat preservation shell is connected with a circulating water pump, and the left side of the heat preservation shell is connected with a tap water pipe. Compared with an existing air energy heat pump, the air energy heat pump with the constant temperature function has the advantages that high-temperature and high-pressure refrigerant gas in the heat pipe enters the spiral pipe to transfer heat to cold water in the heat preservation shell, the high-temperature and high-pressure refrigerant gas is converted into liquid, and the cold water enters the water tank after being heated; when the temperature sensor detects that the water temperature in the water tank is lower than a set standard, the circulating water pump conveys the water in the water tank into the heat preservation shell again to be heated.

The application relates to the technical field of firmware upgrading, and discloses a platform firmware upgrading and checking method and a cluster management system based on out-of-band management, wherein the cluster management system comprises master equipment and slave equipment; the master equipment is in communication connection with a management terminal and a cloud server; each piece of equipment comprises a health management chip, a PHY chip and a physical switch; when a firmware updating instruction is detected, the management terminal controls the master equipment to download a firmware file for updating from the cloud server, and the management terminal sends slave equipment identification of the firmware to be updated to the master equipment; a physical switch corresponding to the master equipment is turned on, and a firmware updating instruction is sent to the slave equipment with the firmware to be updated through a communication bus to turn on a physical switch corresponding to the slave equipment with the firmware to be updated, so that a single Ethernet channel between the master equipment and the slave equipment is opened; and the master equipment sends the firmware file to the slave equipment with the firmware to be updated through the single Ethernet channel. The application is suitable for the scene of firmware upgrading of multiple devices without on-site attendance.

The double-cavity underwater wireless data monitoring system for the diving respirator comprises a gas detection device and a gas display device, the gas detection device comprises a hollow first waterproof shell, a waterproof partition plate is fixed in the middle of the first waterproof shell, and an inner cavity of the first waterproof shell is divided into a closed normal pressure cavity and a variable pressure cavity by the waterproof partition plate; a normal-pressure cavity sealing ring and a normal-pressure cavity upper cover are fixed to the top of the first waterproof shell and located over the closed normal-pressure cavity, a control key is embedded in the normal-pressure cavity upper cover, a battery, a control circuit board and an antenna are fixed in the closed normal-pressure cavity, and a transformation cavity sealing ring and a transformation cavity upper cover are fixed to the top of the first waterproof shell and located over the transformation cavity. The front side of an upper cover of the variable-pressure cavity is fixedly connected with an inspiration gas outflow connector of an upper inspiration pipeline of the respirator, the front side of a bottom shell of the first waterproof shell is located under the variable-pressure cavity and fixedly connected with an inspiration gas inflow connector of a lower inspiration pipeline of the respirator, an installation plate is fixed in the variable-pressure cavity, and a differential pressure sensor and a gas concentration sensor are fixed to the installation plate.

This application provides an application update method, apparatus, electronic device, computer program product, and computer-readable storage medium. The method includes: when an update to the version data of a target application is detected, determining a first process of the target application on a cloud server and a second process of the target application on a local server; performing a first process on the version update data based on the first process, and performing a second process on the version update data based on the second process, with the first and second processes executed in parallel; when a first configuration file is obtained after the first process is completed and a second configuration file is obtained after the second process is completed, performing the following update process: updating the first process based on the first configuration file to obtain an updated first process; and updating the second process based on the second configuration file to obtain an updated second process. This application improves the efficiency of application updates.

Embodiments of the present application provide a map element generation method and a computer program product, wherein the map element generation method comprises: identifying an image to obtain image coordinates of shape points of a map element recorded by the image; performing visual three-dimensional reconstruction based on the image coordinates of the shape points to obtain initial geographic coordinates of corresponding position points of the shape points in an actual physical space; determining a neighborhood of the position points in a laser point cloud corresponding to the image according to the initial geographic coordinates of the position points; fitting a function expression representing a shape of the map element based on laser points in the neighborhood; determining a projection error of the shape points based on the function expression and the image coordinates of the shape points; performing nonlinear optimization based on the projection error and a set laser geometric constraint parameter, and determining geographic coordinates of the position points of the map element according to a result of the nonlinear optimization. The advantages of the image and the laser point cloud are combined, and the precision and the update rate of the electronic map are improved under the premise of low cost.

The invention discloses a wave-shaped micro-channel cooling device with wing-shaped fins, and relates to the technical field of micro-channel heat dissipation, the wave-shaped micro-channel cooling device comprises a base plate, the base plate is provided with a cooling channel and heat exchange channels penetrating from the front end to the rear end, the heat exchange channels are evenly and parallelly arranged close to the cooling channel, the heat exchange channels are symmetrical wave-shaped channels, and the wing-shaped fins are arranged in the cooling channel. And all wing-shaped fins are sequentially arranged in the heat exchanger from the front end to the rear end. While the wing-shaped fins in the heat exchange channel increase the effective heat exchange area, the streamline profile generates moderate turbulent flow when fluid flows to continuously disturb the boundary layer of the wall surface, so that the heat exchange strength between the fluid and the wall surface is enhanced, and the heat exchange effect of the cooling device is effectively improved; the collaborative configuration of the wing-shaped fins and the symmetrical waveform channels promotes fluid boundary layers to be separated, vortexes are formed in the flow channels, meanwhile, the fluid is guided to generate secondary flow and chaotic advection, the heat exchange effect is remarkably enhanced, and the purpose of improving the heat exchange efficiency is achieved.

The invention relates to the technical field of flue gas treatment technologies, and discloses metallurgical furnace tail gas micro-emission purification equipment which comprises a tower body with a gas inlet pipe and a gas outlet pipe, a spraying mechanism arranged in the tower body, a spraying absorption area arranged at the bottom of the spraying mechanism and a liquid discharge pipe arranged at the bottom of the tower body. A gas-liquid contact part is arranged at the bottom of the spraying absorption area and comprises a plurality of bubbling assemblies; the bubbling assembly comprises a mounting plate arranged on the inner wall of the tower body, a weir plate slidably arranged on the side wall of the mounting plate, an air hole formed in the top surface of the mounting plate, and an anti-overflow cylinder arranged on the top surface of the mounting plate and corresponding to the air hole in position. According to the equipment, the retention time of bubbles is prolonged by deepening a liquid layer under a high air inlet load, deep purification of pollutants such as NMP is ensured, airflow resistance is reduced by lowering the liquid layer under a low air inlet load, and energy conservation, efficiency improvement and stability improvement in the operation process are realized.

The present invention discloses a method for updating the routing of a space information center network, which includes: obtaining a satellite node set of a satellite communication network in a Euclidean space; processing the satellite node set to obtain a spatial information center network neighbor node feature similarity representation model; obtaining parameter information of the spatial information center network; processing the parameter information of the spatial information center network to obtain spatial information center network routing feature information; using the spatial information center network neighbor node feature similarity representation model, processing the spatial information center network routing feature information to obtain a spatial information center network routing update result. The present invention effectively reduces the time complexity of useless spatial information network routing by introducing a multi-objective optimization service switching method, improves the spatial information center network connectivity speed of the inter-satellite terahertz channel, and effectively ensures the efficient communication of the spatial information center network of the inter-satellite terahertz channel.