13results about How to "Achieve rapidity" patented technology

The invention discloses a transformer substation model construction method based on laser point cloud and visual data, and relates to the technical field of transformer substation model construction.The transformer substation model construction method based on the laser point cloud and the visual data comprises the following steps that an equipment model library is constructed based on equipment data in a transformer substation; obtaining a substation field depth prediction map by using monocular depth estimation; calibrating the substation field depth prediction map based on the point cloud data; obtaining three-dimensional model data of the substation equipment based on the calibrated substation field depth prediction map; according to the transformer substation model construction method based on the laser point cloud and the visual data, by means of monocular depth estimation and automatic processing of the point cloud data, dependence on manual modeling is reduced, and the modeling process is more efficient; the equipment model library is constructed based on the equipment data, so that high equipment precision in the model library is ensured; and the depth prediction map is calibrated by using the point cloud data, so that the accuracy of the three-dimensional model is improved.

The invention relates to the technical field of electrical switch equipment, and particularly discloses a direct-current magnetic field circuit breaker tripping device and method of a large generator set excitation system, and the direct-current magnetic field circuit breaker tripping device and method are used in cooperation with a lock catch shifting fork. Comprising a base, a tripping fork assembly which is rotatably installed on the base around the X-axis direction and is used in cooperation with a lock catch shifting fork, a fixing assembly installed at the bottom of the base, and an elastic reset assembly which is installed on the fixing assembly and is in transmission connection with the tripping fork assembly. And the tripping rod assembly is rotationally mounted on the fixing assembly around the Z-axis direction and is in transmission fit with the tripping fork assembly. The invention also discloses a method thereof. According to the invention, independent tripping and opening can be effectively realized, the opening redundancy design is realized, and the reliability of fault de-excitation of the direct current excitation system can be effectively ensured.

The invention discloses a folding wing unfolding and locking device based on disc spring locking. The folding wing unfolding and locking device comprises a steering engine, a wing box, a bearing end cover, a wing rocker arm, a locking device, a locking pin, a folding combined disc spring, a guide rail, a sliding block, a connecting rod, a steering engine push rod connector, a rotating shaft and a bearing. In an initial state, the folding combined disc spring is in a free state, and when a wing rocker arm touches the inclined surface of the locking pin in the rotating process of a wing, the locking pin moves downwards under the action of normal force to pre-tighten the folding combined disc spring; when a locking hole in a wing rocker arm coincides with a first mounting hole, by utilizing the characteristics of high rigidity, quick deformation response and small impact force of the folding combined disc springs, the multiple sets of folding combined disc springs quickly push the locking pin to bounce into the locking hole by releasing stored elastic potential energy, so that the aim of quickly locking a wing is fulfilled; the folding wing unfolding and locking device is compact in structure, simple, reliable, quick in response, high in universality and capable of being applied to quick locking of airfoils of various aircrafts.

The present invention discloses a method and system for optimizing a tunnel ventilation scheme, the method comprising: acquiring real-time environmental data and fan operating parameter data in a tunnel, classifying them, and obtaining discrimination data and initial data; comparing the discrimination data with preset tunnel specifications and standards; if the limit is exceeded, obtaining the calculated values ​​of environmental indicators at preset monitoring points in the tunnel through computer simulation tests based on the initial data, and performing error analysis; if the error analysis result meets the preset threshold requirements, formulating several initial fan parameter schemes, continuing to perform computer simulation tests, and obtaining N groups of initial fan parameters and N groups of calculated values ​​of environmental indicators at preset monitoring points; obtaining a relationship matrix between N groups of initial fan parameters and N groups of calculated values ​​of environmental indicators at preset monitoring points, solving it, and obtaining the optimization result of the tunnel ventilation scheme; the present invention avoids the subjective influence of human factors on the ventilation scheme, so as to adapt to different emergencies and ensure a safe tunnel operation environment.

The invention belongs to the technical field of rolling mill mechanical equipment overhaul, and particularly relates to a method for replacing a roll bending cylinder of a finishing mill in a limited space. Comprising the following steps: (1) manufacturing a special lifting appliance, an upper support and a lower support; (2) an upper support and a lower support are placed between an upper connecting shaft sleeve and a lower connecting shaft sleeve and between the lower connecting shaft sleeve and a lower supporting roller shaft respectively, connecting shaft embracing is opened, an upper connecting shaft and a lower connecting shaft fall on the upper support and the lower support respectively, and a hanging ring is installed on the gear base combination face of a roller bending cylinder; and (3) the special lifting appliance is moved to the transmission side of the finishing mill through the travelling crane, a first chain block, a second chain block, a third chain block and a fourth chain block are connected to the special lifting appliance in a hanging mode, and the first chain block and the fourth chain block are connected with the first lifting point and the lifting ring of the roll bending cylinder in a hanging mode respectively and tensioned. According to the invention, the operation is simple, the assembly and disassembly are simple, convenient and rapid, and the replacement operation can be completely realized under the condition that the connecting shaft and related accessories are not disassembled.

The invention belongs to the technical field of communication conversion, and particularly relates to a Modbus-to-LoRaWAN communication method and system, a terminal and a storage medium. The communication method for converting the Modbus to the LoRaWAN comprises the following steps: S1, acquiring real-time data information of electronic equipment corresponding to modbus equipment; s2, constructing an equipment acquisition description table according to the real-time data information; s3, the transfer gateway constructs a virtual equipment mapping table according to the equipment acquisition description table; s4, generating summarized data information according to the virtual equipment mapping table; and S5, the summarized data information is sent to a far-end server in a LoRaWAN technology mode. According to the invention, the construction process can be simplified, and the integration level and flexibility of the system are improved; and the remote monitoring and management efficiency can be improved.

The present invention relates to the technical field of hydraulic pump component processing, and in particular to a multi-station composite processing hydraulic tooling and its processing technology. Its tooling structure includes a tooling base, on which a first hydraulic horizontal positioning tooling station and a second hydraulic vertical positioning tooling station are respectively arranged. The first hydraulic horizontal positioning tooling station is used for horizontal positioning processing of the workpiece to be processed, and the second hydraulic vertical positioning tooling station is used for vertical positioning and reprocessing of the workpiece to be processed that has been processed on the first hydraulic horizontal positioning tooling station. On the one hand, the present invention integrates the working procedures, reduces the turnover times and clamping times of the product, greatly reduces the production time, reduces the cumulative error of the processed workpiece, greatly improves the position accuracy of the workpiece, and ensures the quality stability of the workpiece; on the other hand, the working hours are reduced, the profit margin is increased, the labor cost is reduced, the equipment occupancy rate effectively utilizes resources, and ensures the high quality of the product.

The utility model belongs to the technical field of automobile tire recycling, and particularly relates to a disassembly type tire recycling and cleaning device which comprises a box body, a cleaning device and a cleaning device. A placement groove is formed in the partition plate; a through hole is further formed in the partition plate; a first cavity and a second cavity which are communicated with each other are arranged between the partition plate and the box body; the disassembling mechanism is connected to the box body; the disassembling mechanism is arranged on the upper portion of the containing groove. The pressing mechanism is connected to the box body; the downward pressing end of the downward pressing mechanism penetrates through the through hole and extends to the second cavity; and a first cleaning mechanism and a second cleaning mechanism. The cleaning end of the first cleaning mechanism is arranged in the first cavity; and the cleaning end of the second cleaning mechanism is arranged in the second cavity. The cleaning device can be disassembled and cleaned and recycled at the same time, and the cleaning speed and efficiency are improved.

The application discloses a navigation positioning method based on an interactive multi-model rapid smooth switching framework. The application firstly initializes an inertial navigation system, three sub-filter models and benchmark parameters of the interactive multi-model; then, based on innovation squared sum (ISR) and chi-square test, the original likelihood value is robustly modified to inhibit the interference of abnormal values on the likelihood value; then, based on sliding window trend analysis, two-stage determination is realized, the first stage strengthens the continuous optimal model, the second stage switches the failure model and selects a trend-qualified alternative model; then, according to the determination result, a transition probability correction coefficient is calculated to dynamically adjust a transition probability matrix (TPM) of the interactive multi-model; finally, the navigation result is output through multi-model weighted fusion, and combined navigation real-time iteration is realized, so as to solve the problems of traditional interactive multi-model, such as complex noise, model mismatch scene, likelihood value distortion, model switching lag and poor adaptability of the transition probability matrix.

The present application discloses a steering mode switching control method and device for a four-wheel steering vehicle; it relates to the field of four-wheel vehicles and solves the problem of cumbersome operation procedures when a four-wheel steering vehicle switches steering modes. The present application installs angle sensors on the front and rear axles to detect the deflection angles of the wheels on the left side of the front and rear axles. When the driver needs to switch the steering mode, no matter what angle the front and rear wheels are in, the steering angles of the wheels are monitored and adjusted in real time to ensure that in different steering modes, the driver is reminded how to operate the steering wheel according to the driver's steering needs and the deflection angles of the left and right tires of the front and rear axles. When the deflection angles of the wheels on the left and right sides of the front and rear axles meet the steering mode requirements, the corresponding steering solenoid valves are opened to achieve rapid adjustment of the steering mode, improve the vehicle's maneuverability and safety, avoid cumbersome steering mode switching procedures, and at the same time ensure the synchronization of the steering of the front and rear wheels after the steering mode is switched.

The invention belongs to but is not limited to the technical field of reactor core power distribution, and discloses a small power reactor core power distribution rapid calculation method and system, and the method comprises the steps: selecting a proper physical calculation program, carrying out the modeling of a fuel assembly of a small power reactor core, designing proper input and output parameters, and constructing a power distribution data spectrum library; a full-connection neural network is selected to construct a data-driven power distribution calculation model; the training sample data set is substituted into the data-driven calculation model based on the full-connection neural network, multiple rounds of training are carried out, and a convergent data-driven calculation model is obtained; and performing test verification on the test sample set by using the convergence model to obtain a test result. The method provided by the invention has extremely high calculation speed, can achieve calculation precision similar to that of a physical calculation program of the reactor core, and can meet basic requirements of online supervision of the reactor core of the small reactor for the high-maneuverability ship.

The invention discloses a low-voltage distribution network intelligent fault positioning and recovery system based on village and town resource adaptation, and relates to the technical field of alternating-current distribution networks. The at least one boundary layer control master station is deployed in a power distribution area of a village and town and is in communication connection with the cloud layer master station; the plurality of end-layer intelligent terminals are deployed at distribution line nodes and distributed resource sides and are in communication connection with the belonging side-layer control master stations; wherein the boundary layer control master station at least comprises a resource portrait modeling module, a local plan library management module, a communication state monitoring module and a fault intelligent positioning and autonomous recovery decision engine. According to the system, through a cloud-side-end off-line autonomous architecture, the problem that a centralized system breaks down due to communication interruption of villages and towns is solved. When the communication is interrupted, the local side layer master station can complete fault processing and power supply recovery according to a pre-stored plan and real-time data, the communication vulnerability is converted into a tolerable working condition from a fatal weak point, and automatic rapid power recovery under the condition of unreliable communication is realized.