16results about How to "Accurate isolation" patented technology

The invention relates to the technical field of laser measurement, in particular to a pivot base multi-dimensional error detection device based on laser scanning, which comprises a laser measurement device and an intermittent annular conveying device, a plurality of tooling plates are arranged on the intermittent annular conveying device, a driving assembly is arranged on the intermittent annular conveying device, and the driving assembly is connected with the laser measurement device. A mounting box is arranged on the tool plate, and an angle conversion assembly and a rotating assembly are arranged in the mounting box; through organic cooperation of three core mechanisms of transmission and driving time sequence cooperation, rotation and revolution mode switching and layered elastic driving, key problems of multi-degree-of-freedom cooperative control, single ball head motion function, driving failure in an inclined state and the like of an existing laser measurement system are effectively solved. And the completeness of workpiece three-dimensional form and position error detection is obviously improved.

This invention discloses a fault location and busbar protection method and system. The fault location and busbar protection method includes: acquiring simulation information and switch information of the fault location and busbar protection system; determining the area where the fault point is located based on the simulation information; and controlling the switch located in the area where the fault point is located to disconnect based on the area where the fault point is located and the switch information. In this embodiment, the fault location and busbar protection system determines the faulty area by acquiring simulation information from the secondary sides of the first and second main transformers; and disconnects the switch in the faulty area by acquiring switch information from the secondary sides of the first and second main transformers, thereby achieving accurate determination and precise isolation of the faulty area in the fault location and busbar protection system.

This invention relates to the field of new energy battery cell welding technology, specifically a flight welding protection mechanism for battery packs (BSBs). The mechanism includes a welding bed and a battery pack to be welded disposed within the welding bed; a support mechanism mounted on the welding bed; two sets of reel mechanisms mounted inside the support mechanism; a fume extraction mechanism mounted on the reel mechanisms; and a lateral distance adjustment mechanism mounted on the back of the support mechanism. The reel mechanisms include wind deflectors with rectangular cavities inside. By eliminating the traditional single-sided left and right guard plates within the welding bed and instead installing two symmetrically distributed reel mechanisms within the welding bed, effective dynamic welding protection is created between the corresponding trusses and reel mechanisms when the two reel mechanisms move synchronously with two trusses. The static area where the two reel mechanisms are centrally located receives synchronous shielding protection, thus precisely isolating the welding zone from the unwelded zone and completely preventing high-temperature welding slag from contaminating the unwelded area.

The invention relates to the technical field of multi-tenant system architecture, and discloses a multi-tenant resource isolation system and method. Comprising a meta-model driving layer which comprises a plurality of meta-models and a meta-model dynamic analysis engine, and the meta-model dynamic analysis engine is used for generating an SQL table structure and a business logic code according to a target meta-model selected by a tenant; the tenant configuration layer is used for a tenant to configure fields and processes of the target meta-model in the visual sandbox environment, and performing conflict detection and simulation running test when configuration of the target meta-model is updated; the resource isolation layer is used for distributing an independent container and an independent database for each tenant and carrying out dynamic quota management on CPU and memory resources of the containers; and the data storage layer creates an independent table space in the database of each tenant, and rewrites the initial query request based on the tenant ID in combination with the SQL routing middleware. According to the method and the device, data leakage and interference among the tenants can be prevented, and accurate data access in a multi-tenant environment is realized.

The invention discloses a quick load transfer device and method for a direct-current system of a transformer substation. The quick load transfer device comprises a direct-current power supply, a connecting wire and an insulating puncture connector, the direct-current power supply is arranged in the mobile outer box, the output end of the direct-current power supply is electrically connected with one end of the connecting wire, and the other end of the connecting wire is connected with the insulating puncture connector; the direct-current power supply internally comprises a storage battery pack, a charging module and a DC / DC conversion module and is used for outputting voltage-adjustable direct current; the insulation puncture connector is used for establishing electrical connection with a feeder line of a transformer substation direct current system under the condition that a wire insulation layer is not stripped. The mobile outer box is provided with a direct current voltmeter used for monitoring voltage and an output protection switch used for controlling output on-off. By adopting the insulation puncture connection technology, the quick and firm live connection can be realized without manual cutting or stripping of the outer skin of the main wire, the live bare operation is avoided, and the operation safety is improved.

This invention discloses a belt anti-scratch system and method for a belt sampling machine. The system includes a support frame, a protective cover, and a main controller. The support frame is mounted on the belt conveyor frame, with the protective cover connected to its upper part. Industrial cameras are installed inside the protective cover and at the bottom of the belt for real-time monitoring of the belt's condition. A rotating support is mounted on the support frame, with a rotating shaft passing through the protective cover. One end of the shaft is connected to a reducer and a motor, while the other end holds a sampling head placed inside the protective cover, forming a rotatable sampling structure. The main controller is electrically connected to the industrial cameras and the motor. It acquires belt image data through the industrial cameras, processes the data, and then controls the motor to drive the sampling head, achieving monitoring of the belt's operating status and anti-scratch control during the sampling process. Through structural integration and intelligent control, this system effectively prevents the sampling head from scratching the belt, improving the safety and reliability of equipment operation.

The application discloses a kind of satellite navigation signal security isolation method and device.The isolation method includes satellite navigation receiving antenna simultaneously receiving multiple satellite navigation signals from different navigation satellites, by isolating device, these satellite navigation signals are respectively demodulated received, and using receiving information real-time recovery regenerates corresponding regenerative navigation signal, while detecting these satellite navigation signals, find any satellite navigation signal as spoofing signal, then block corresponding regenerative navigation signal output, while satellite navigation signal detected as real signal, corresponding regenerative navigation signal is combined and output to the satellite navigation receiving equipment protected.The method and device are not only beneficial to accurate isolation spoofing satellite navigation signal, but also beneficial to maintain the continuity and accuracy of real satellite navigation signal reception, realize the effective unity of satellite navigation signal detection, spoofing signal blocking isolation and uninterrupted reception of real signal.

This invention discloses a multi-pattern switching device for sights, relating to the field of optical aiming equipment technology. The device includes a prism, a splitting plate, two sleeves, two LED lights, and a lens. The splitting plate has concentric, heterogeneous first and second patterns. The two sleeves are concentrically nested outside the prism, forming independent optical path channels. The two LED lights correspond one-to-one with the patterns and can be configured with different colors, allowing independent control of their on / off state and brightness. The two sleeves define the corresponding LED light paths, achieving crosstalk-free light projection. After refraction by the prism and imaging by the lens, arbitrary combinations and switching of multi-color and multi-pattern splitting patterns can be achieved. This device requires no disassembly or calibration, has a fast switching response, and provides clear pattern boundaries, significantly improving the sight's adaptability and aiming accuracy, and is suitable for various shooting equipment.

The invention belongs to the technical field of power transmission and distribution prices of power systems, and relates to a power grid power transmission and distribution price pricing method suitable for diasters. Comprising the following steps: dividing power grid users into disagger users and general users; on the basis of a shallow cost recovery principle, acquiring the exclusive access facility cost of the consumer, and determining the access cost; obtaining the permitted income of the power grid public network, and constructing a public network use fee pricing model based on the incidence relation between the load rate and the coincidence rate; and based on the access fee and the public network usage fee pricing model, determining the power transmission and distribution price undertaken by the consumer. According to the method provided by the invention, a pricing mechanism of'access fee + selectable load rate public network use fee 'is constructed, so that the problems of poor applicability of traditional power transmission and distribution price and serious cross subsidy caused by'large capacity and low load rate' characteristics of the producer and the consumer are solved, and accurate allocation and recovery of the cost are realized.

Embodiments of the present application provide a vehicle fire extinguishing method, device, equipment, system, storage medium and program product, the method comprising: after receiving the battery abnormal data sent by the battery management system of the risk vehicle, or after identifying that the risk vehicle performs sound and light alarm, determining the position of the risk vehicle; after forming a first isolation space by surrounding the risk vehicle with a single-vehicle cofferdam device based on the position of the risk vehicle, injecting fire extinguishing agent into the first isolation space, and detecting smoke and open fire in the first isolation space; if smoke or open fire is detected, forming a second isolation space by surrounding the area where the risk vehicle is located with a partition cofferdam device, and injecting fire extinguishing agent into the second isolation space. When the vehicle battery is abnormal, single-point early warning and precise control are realized by single-vehicle cofferdam, hierarchical control is realized by partition cofferdam, the fire source range is accurately locked, the spread of fire is avoided, and the efficient fire control demand of vehicle dense transportation scene is adapted.

This application provides a machine vision-based glass wool defect detection and sorting device. The device includes a conveying system, a shearing mechanism, a detection unit, and a central control unit. The conveying system includes a first roller group and a second roller group along the downward direction of the glass wool. The first roller group operates at a speed of [speed value missing], and the second roller group operates at a speed of [speed value missing] and has a roller gap adjustment function. The shearing mechanism is located below the second roller group. The detection unit is located between the first and second roller groups and is used to acquire real-time images of the glass wool surface and identify defect areas. The central control unit is electrically connected to the shearing mechanism and the detection unit. This glass wool defect detection and sorting device achieves precise positioning and efficient isolation of defective sections, avoiding the problems of missed detections and false detections caused by subjective factors in traditional manual inspection, and significantly improving the level of product quality control.

The invention discloses an electric power system relay protection method, device and system based on flexible gray scale measurement and calculation, and relates to the field of intelligent security and protection of electric power systems. The method comprises the following steps: acquiring network communication flow of a relay protection device, and calculating a first security gray value through a flexible gray measurement and calculation model based on the network communication flow; acquiring electrical quantity data and judging internal faults; when an internal fault occurs, selecting an action strategy according to a comparison result of the first safety gray value and a threshold value; if the first safety gray value is higher than or equal to the threshold value, executing standard protection tripping; and if the value is lower than the threshold value, switching to a defensive protection constant value group with a higher constant value, and starting a cross-device collaborative verification process. Under the defensive constant value group, a tripping command is sent only when the local fault criterion is met and a collaborative confirmation message of an adjacent device is received. According to the invention, dual verification is carried out by combining the local fault criterion and the adjacent device confirmation message, the accuracy of the tripping command is ensured, and the risks of maloperation and missing operation are reduced.

The application relates to a power grid overcurrent protection system, which comprises a power supply V1, L MAIN, LESS, LHBB bus bars, a current sensor S1, contactors LTRUC, LDTC, LMBR, LBTC, LETC, a battery LBAT and a controller BPCU. The application also relates to a power grid overcurrent protection method, which comprises the following steps: the controller BPCU acquires the current of the power supply V1; the contactor LBTC is disconnected and locked; if the current returns to normal, the locking of the contactor LBTC is kept, otherwise the contactor LETC is disconnected and locked, if the current returns to normal, the locking of the contactor LETC is kept, the locking of the contactor LBTC is released, otherwise the contactors LDTC and LMBR are disconnected and locked; if the current returns to normal, the locking of the contactors LDTC, LMBR and LETC is kept, the locking of the contactor LBTC is released, otherwise the contactor LTRUC is disconnected and locked, and the contactors LMBR and LETC are released. The application can realize accurate control and protection of multiple bus bars in the power grid, ensure that the fault point can be quickly and accurately isolated when an overcurrent fault occurs, and guarantee normal operation of the power grid.

The application discloses a kind of data high-precision acquisition processing systems of battery module, belong to acquisition processing system technical field, comprising: distributed intelligent acquisition module, digital communication connection line, main control and collaborative computing module and fast self-checking and protection circuit, the distributed intelligent acquisition module is used to connect and acquire the analog signal of each electric core or electric core module electric parameter and environmental parameter, and it is converted into original digital data, then original data is carried out online adaptive weighted data fusion, sparse sampling compression and feature extraction, generates situation data package, and according to time series prediction model dynamic adjustment data acquisition cycle to optimize energy consumption, simultaneously according to network state and data priority dynamic selection communication protocol and transmission path.The application can also be distributed intelligent acquisition on the basis of realizing high-precision acquisition processing to battery module, and can realize the intelligent closed loop of sensory transmission calculation protection depth cooperation.

The application discloses a kind of data security transmission method and system under the uncertain interference of interconnected transformer area, belong to the data transmission technical field in interconnected transformer area, method includes: obtaining power generation unit data, through Lagrange multiplier method analysis incremental cost and output power calculation paradigm;If not initial time, receive neighbor encrypted data, update weight matrix after attack detection filtering, update incremental cost and power using distributed algorithm;After meeting convergence, output power is quantized and encrypted transmission is decrypted to transformer area intelligent agent node, calculate total demand;Based on total demand, establish transformer area model and convert into dual problem;Receive inter-transformer area encrypted information, update weight matrix after attack detection filtering, update incremental cost and transmission power using distributed algorithm, until meeting convergence output optimal configuration.The application realizes data security circulation and light weight transportation by attack detection filtering, privacy protection and communication quantization mechanism.

The invention discloses a single-power-supply radial distribution line section isolation method and device for residual voltage detection, relates to the technical field of power system relay protection, and aims to solve the problems that an existing distribution line section isolation scheme is prone to misoperation, complex in setting and weak in transition resistance resistance when adjacent lines break down. Protection configuration is optimized, in-station protection adopts instantaneous quick-break over-current protection and reclosing, and out-station protection is configured with section protection, including directional over-current protection and directional low-voltage protection in basic protection and directional acceleration over-current protection and directional acceleration low-voltage protection in acceleration protection; when a permanent short-circuit fault occurs in the line, the in-station protection firstly acts to trip and executes reclosing; if the coincidence fails, the fault line starts complete section protection based on a residual voltage detection mechanism, and the sound line does not start protection because the residual voltage is not detected, thereby realizing on-site rapid and accurate fault isolation, avoiding maloperation, simplifying the setting process, and improving the power supply reliability and the anti-interference capability.