387 results about "Isolation system" patented technology

The invention relates to a low-frequency vibration isolator with a wide quasi-zero stiffness interval. The low-frequency vibration isolator comprises a bearing platform, a base, a first negative stiffness assembly, a second negative stiffness assembly and a linear vibration isolation assembly. The bearing platform and the base are arranged in parallel and are both provided with bolt holes and limiting holes; a linear vibration isolation assembly is installed between the bearing platform and the base. The first negative stiffness assemblies are symmetrically distributed with the center point connecting line of the bearing platform and the base as the symmetry axis. The top of the first negative stiffness assembly is connected with the bearing platform, and the bottom of the first negative stiffness assembly is connected with the base. The two ends of the second negative stiffness assembly are connected with the two first negative stiffness assemblies correspondingly. The low-frequency vibration isolator has the characteristics of high static rigidity and low dynamic rigidity, the contradiction between the bearing capacity and the vibration isolation performance of a linear vibration isolation system is effectively solved, and the effective low-frequency vibration isolation effect on a vibration-isolated object is achieved while the bearing capacity of the vibration isolator is guaranteed.

The invention relates to the technical field of information processing, in particular to a user-oriented multi-tenant security enhancement service isolation system, comprising: at least one tenant, each tenant having an independent namespace, at least one corresponding service, at least one corresponding node, and a network storage space; the public node pool comprises a plurality of public nodes, and firewalls are arranged between the public nodes and the nodes corresponding to the tenants; and the resource controller is used for dynamically adjusting the resources of different tenants. A safe isolation environment of computing resources, storage resources and network resources is constructed in a mode of combining soft isolation and hard isolation, safe and efficient resource intensive management of a multi-tenant environment is realized, a resource adjustment mode of each tenant is determined according to index data of each tenant, tenant resources are automatically and dynamically allocated, and the resource utilization rate is improved. And the business isolation requirements of the tenants are met on the premise of ensuring the system stability and security.

A diagnostic method localizes technical faults in a motion system that includes a base adapted to receive a motion stage for equipment, a machine frame resting on the floor, dampers adapted to support the base, and an active isolation system arranged between the base and the machine frame. The active isolation system and the base form a mechanical system. The active isolation system includes actuators, adapted to impart six degree-of-freedom (DOF) motion to the base in a reference frame, and inertial sensors adapted to provide a six DOF measurement of the base's motion. The method includes: i) applying a control signal for actuating or contributing to the actuation of the actuators of the active isolation system to impart a motion to the base; ii) obtaining, with the inertial sensors, a six DOF measurement of the base's motion relative to a reference point; iii) creating a measured process sensitivity matrix of the mechanical system using the six DOF measurement; and iv) determining, based on the measured process sensitivity matrix, whether all the actuators and sensors of the active isolation system are working as expected and / or whether there is a pivot point impeding the movement of the base.

The invention relates to the technical field of structural engineering shock isolation, in particular to a quasi-zero stiffness shock isolation device based on hydraulic negative stiffness and a design method thereof. A quasi-zero stiffness shock isolation device based on hydraulic negative stiffness comprises a vertical bearing unit which comprises at least one vertical spring, and the two ends of the vertical spring are connected to the top face of a lower connecting plate and the bottom face of an upper connecting plate respectively; the negative stiffness unit comprises a hydraulic oil cylinder and a piston rod, the piston rod extends into the hydraulic oil cylinder, and the hydraulic oil cylinder and the piston rod are hinged to the lower connecting plate and the upper connecting plate respectively, or the hydraulic oil cylinder and the piston rod are hinged to the upper connecting plate and the lower connecting plate respectively; the distance between the upper connecting plate and the lower connecting plate is increased or decreased to drive the length of the piston rod extending into the hydraulic oil cylinder to change so as to provide negative stiffness. The problems that in the prior art, when a nonlinear vibration isolation system provides negative stiffness in a metal horizontal spring compensation mode, a quasi-zero stiffness working zone is narrow, the bearing capacity is low, and the requirement for installation precision is high are solved.

The invention relates to the technical field of laser welding, in particular to a dissimilar metal laser welding device which comprises a base, and a welding area is arranged at the top of the base. According to the dissimilar metal laser welding device, through an intelligent airflow isolation system, a flexible baffle structure pressurized by a spring is adopted, and dynamic sealing is formed by automatically attaching to the surface of a workpiece in the welding process. A protective air curtain is built around a welding area, cooling airflow is allowed to pass through the peripheral area to achieve overall cooling, airflow disturbance directly blown to a welding seam can be effectively blocked, and a self-adaptive welding seam tracking mechanism is adopted; the whole protection frame is driven to deflect synchronously through contact friction force between the limiting pad and the workpiece. According to the mechanical tracking mechanism, the position of the baffle can be adjusted in real time without an additional sensor and a control system, so that a protection area accurately covers a welding seam path all the time. And the method is particularly suitable for the common irregular joint situation during dissimilar metal welding.

The invention discloses a virtual desktop sandbox isolation system, method and equipment for Windows and a medium, and relates to the technical field of computers. The system comprises a virtual desktop management module, a sandbox isolation module and a resource access control module. A virtual desktop management module creates and manages a virtual desktop, a sandbox isolation module generates an independent sandbox environment for each desktop, cross-desktop process communication is prevented, and file write operation redirection and external access interception are respectively realized by means of a resource access control module and through an API hook and dynamic link library injection technology. And redirection and access control of network communication to a VPN network channel. Therefore, systematized deep isolation is realized at the desktop level. Through deep binding of the virtual desktop and the sandbox environment, desktop-level file system redirection, network channel isolation and process communication blocking are achieved, and the security requirement for reliable, seamless and deep isolation between different virtual desktops is met.

The rapid cooling device comprises a cooling box body, air curtain isolation systems are arranged at the two ends of the cooling box body, and the interior of the cooling box body is sequentially divided into a pre-cooling area, a deep cooling area and a uniform temperature area in the material conveying direction; the pre-cooling area is provided with a first cooling unit, the first cooling unit comprises a compressed air source and a plurality of vortex tube coolers communicated with the compressed air source, and the output ends of the vortex tube coolers are provided with nozzles used for spraying cold air to materials; the deep cooling area is provided with a second cooling unit, the second cooling unit comprises a liquid nitrogen supply source and a plurality of atomizing nozzles communicated with the liquid nitrogen supply source, and the second cooling unit is used for spraying low-temperature atomizing media to materials. The efficient, uniform and stable cooling of the heat-conducting structural adhesive is realized, and the product performance and batch consistency are improved.

The invention provides a red and black isolation system and method for realizing encryption algorithm dynamic switching based on an FPAG dynamic configuration technology, and aims to solve the problems of rigid isolation strategy, high switching response delay, encryption algorithm solidification and the like of a traditional red and black isolation architecture. The system comprises a red area CPU unit, a black area CPU unit and an isolation area FPGA access control unit, and automatic switching of protection strategies is achieved through FPGA local dynamic configuration. According to the invention, the encryption algorithm can be rapidly and dynamically switched according to the identified network threat level, and efficient and secure transmission of data among different security domains is ensured. The method has the characteristics of file encryption storage and integrity verification, key security processing, dynamic region isolation, multi-algorithm support and the like, is suitable for cross-security domain information interaction scenes needing to ensure information security, and has good social benefits and wide application prospects.

The invention provides a ferry password isolation system, and relates to the technical field of information security, and the system comprises an external network host module, a physical ferry module, an intermediate host module and an internal network host module which are isolated from one another: the external network host module is configured to communicate with an external network, obtain data from the external network, and transmit the data to the physical ferry module; the physical ferry module is configured to communicate with the extranet host module, is disconnected from the intermediate host module, and receives data transmitted by the extranet host module; the data transmission module is disconnected with the external network host module, communicates with the intermediate host module and transmits the data to the intermediate host module; the intermediate host module is configured to receive the data transmitted by the physical ferry module and transmit the data to the intranet host module in a one-way manner; and the intranet host module is configured to receive the data transmitted by the intermediate host module.

The invention provides a power distribution network single-phase earth fault processing and fault rapid regional isolation system for solving the problems existing in power distribution network single-phase earth fault regional isolation at present. The system is composed of an improved compensation damping type active intervention arc extinguishing device installed on a transformer substation bus, primary and secondary fusion intelligent switches installed at all nodes of a distribution line, and a primary and secondary fusion intelligent switch intelligent control terminal. When a single-phase grounding fault occurs, a grounding switch of the compensation damping type active intervention arc extinguishing device is switched on, a primary and secondary fusion intelligent switch control terminal of each node of a power grid generates corresponding low-resistance, medium-resistance and high-resistance zero-sequence protection fixed values, and when the single-phase grounding fault occurs, zero-sequence current protection is started to realize rapid fault area isolation of the single-phase grounding fault.

The invention provides a railroad bridge intelligent seismic mitigation and isolation system, and relates to the technical field of railroad bridge engineering, the railroad bridge intelligent seismic mitigation and isolation system comprises a seismic mitigation support arranged on a bridge, the seismic mitigation support comprises a first seat body, a second seat body, a third seat body, a fourth seat body, a first limiting assembly and a second limiting assembly, the first seat body is slidably connected with the second seat body, and the second seat body is slidably connected with the third seat body; the fourth seat body is connected between the second seat body and the third seat body in a sliding mode, the first limiting assembly limits relative displacement of the first seat body and the second seat body, and the second limiting assembly limits relative displacement of the second seat body and the third seat body. The first limiting assembly and the second limiting assembly cut off and release the displacement constraint under different earthquake intensities, graded damping is achieved in combination with the multi-direction sliding structure, the displacement constraint can be released in a graded mode according to the earthquake intensities, and track structure safety and bridge main body structure protection are effectively balanced.

The invention discloses a digital twinning long-span bridge earthquake wind vibration and vibration reduction and isolation system and method, the system takes a high-fidelity digital model for constructing a long-span bridge as a basis, comprises full life cycle monitoring and management of the bridge under earthquake, wind vibration and vibration reduction and isolation conditions, and is based on a sky-air-ground-water integrated ubiquitous sensing module. In combination with artificial intelligence algorithms such as deep learning and a pulse neural network, real-time state evaluation of a bridge structure, material nonlinear analysis, geometric nonlinear analysis, multi-point excitation and pile-soil-structure interaction simulation, wind-induced fatigue damage prediction, earthquake vulnerability evaluation and closed-loop control scientific decision based on an artificial intelligence body are realized. According to the invention, system support and method guidance can be provided for large-span bridge anti-seismic and anti-wind design, intelligent monitoring, operation and maintenance management and vibration reduction and isolation system optimization.

The invention belongs to the technical field of intersection of information network security and power communication, and discloses an asymmetric encryption-based internal and external network security interaction method, which is characterized by comprising the following steps of: 1, key generation and management; 2, a data encryption step; a third step of data transmission; and a fourth step of data decryption. The method has the main beneficial technical effects that the data transmission security is improved, the key management process is simplified, the data transmission efficiency and the transmission convenience are improved, the security isolation of the internal and external networks is realized, the system operation is simpler and more convenient, and the wide applicability is improved.

The invention discloses a micro-isolation system and method based on service awareness in a zero-trust environment, the micro-isolation system comprises three units of a zero-trust engine, a zero-trust execution agent and a micro-service node, and the zero-trust engine filters a service at a network protection boundary, extracts service context information and generates a service access data object; the zero-trust execution agent is in signal connection with the zero-trust engine and the micro-service node, the zero-trust execution agent transmits service awareness data to the zero-trust engine and receives a strategy issued by the zero-trust engine, and the zero-trust execution agent executes the strategy; and the zero-trust execution agent publishes the service basic data to a service bus. According to the method, verification logic and a resource system are isolated in a micro-service business flow perception and strategy association mode, and only micro-services in a permission range are allowed to perform data exchange. An authorization strategy model is established by utilizing multi-attribute characteristics such as micro-service types, service characteristics and network characteristics, so that fine-grained authority management is realized.

The invention discloses an intelligent agent-based office network and server network intelligent isolation system and method, a storage medium and computer equipment, and the method comprises the steps that a business process analyzer determines a core business application and a data flow according to an enterprise business process, and determines business demand information according to the core business application and the data flow; the security policy engine configures a basic isolation rule of the intelligent isolation gateway according to the service demand information and the initial security policy; each sensing agent monitors network flow data and system behavior data of a deployment position; the analysis agent analyzes the network flow data and the system behavior data to generate a first risk identification result; the security policy engine receives the first risk identification result and generates a dynamic security policy according to the first risk identification result; the execution agent adjusts isolation parameters of the intelligent isolation gateway based on the dynamic security policy; and the intelligent isolation gateway isolates and controls communication data between the office network and the server network based on the basic isolation rule and the adjusted isolation parameters.

The invention relates to the technical field of underground water recharging, and particularly discloses a deep foundation pit underground water pumping and recharging balanced vacuum pressure type recharging device which comprises a basic hardware system, a sealing isolation system, a dynamic regulation and control system and a monitoring feedback system. The sealing isolation system comprises a vacuum well lid; according to the pipeline sealing assembly, a hydraulic drive sealing ring is arranged at the joint of a dewatering well water outlet pipe and a recharge well water inlet pipe, the sealing ring automatically expands to fill gaps during water injection, and air permeation is thoroughly isolated; through triple air isolation formed by water pumping pipe head immersion, vacuum well lid sealing and hydraulic sealing rings, contact between underground water and air is reduced to the maximum extent, oxidation reaction is reduced from the source, and the precipitation amount of iron and manganese oxides is reduced by 60% or above; meanwhile, bubbles and sediments can be effectively removed, more than 90% of bubbles and sediments can be actively removed through a periodic back raising and silt pumping mechanism, the anti-blocking performance of the recharge well is remarkably improved, and therefore the service life of the recharge well is prolonged.

The invention belongs to the technical field of active vibration isolation, and particularly discloses an active vibration isolation method and system based on prediction and adaptive control. Comprising the following steps: carrying out multi-degree-of-freedom dynamic modeling on a vibration isolation system, taking the pose of a load as system output, taking the control quantity of an execution mechanism as system input, and uniformly expressing unknown dynamics caused by structural nonlinearity and disturbance as a nonlinear term; constructing an adaptive neural network state observer based on the kinetic model, and estimating a state which cannot be directly measured; the method comprises the following steps: acquiring historical operation data of a vibration isolation system, preprocessing the data, constructing an input time sequence and an output time sequence, and training a long-short-term memory neural network prediction model to generate a prediction signal representing future position information; and designing an adaptive control law according to the state estimation result and the prediction signal, obtaining a feedback control quantity, and superposing the feedback control quantity with a feedforward control quantity obtained based on the prediction signal to form a control instruction for driving an execution mechanism.

A motion isolation system for equipment includes a support structure, a motion platform enabling free movement along a plurality of axes, and a vibration isolation subsystem with a support plate. A biasing mechanism counterbalances at least some of the weight of the motion platform and the vibration isolation subsystem in an upward direction. The surface of the support plate is parallel to the surface of the support structure.

The utility model discloses a powder-liquid double-chamber bag powder split charging system. The system comprises a closed type restricted entry type isolation system and an open type restricted entry type isolation system which are arranged on a frame at intervals; the annular conveying mechanism is rotatably arranged on the frame and used for conveying the powder-liquid double-chamber bags, and the conveying direction of the annular conveying mechanism is parallel to the length extension direction of the frame; an upper bag detection assembly, a bag cutting mechanism, a weighing mechanism, a bag opening mechanism, a sub-packaging mechanism, an inflating mechanism, a sealing mechanism and a lower bag mechanism are sequentially arranged in the conveying direction of the annular conveying mechanism; the bag cutting mechanism, the sub-packaging mechanism, the inflation mechanism and the sealing mechanism are located in a closed type restricted entry type isolation system, and other structures are located in an open type restricted entry type isolation system. The utility model provides a brand new technological process, and the bag cutting mechanism, the bag opening mechanism, the subpackaging mechanism, the inflating mechanism and the sealing mechanism are arranged in the closed type restricted entry type isolation system, so that the whole process of opening the powder cavity is ensured to be sterile.

The present invention relates to a solar energy harvesting system preferably mounted in a relatively flat position and isolated from its external operating weather environment to maximize automated installation, minimize embodied carbon dioxide footprint, and minimize deployment and environmental uncertainties driving up total installed system cost. The environmental weather isolation further empowers solar design features by minimizing and isolating structural design load requirements away from the objects receiving the solar energy through a multifunctional film that isolates the objects receiving solar energy from the weather.

Systems and methods provided herein relate to a power system, such as a system for a motor. A digital acquisition unit is configured to receive current sense signals associated with a motor and phase voltage power signals associate the motor. The data acquisition unit includes a module coupled to a first ground and an attenuator circuit coupled to a second ground. The first ground is isolated from the second ground. The phase voltage power signals are provided to the attenuator, and the attenuator provides phase voltage sense signals to the module.

System, method, and various embodiments for a request isolation system are described herein. An embodiment operates by determining a first request that has been processed by one or more computing services of a primary computing system. It is determined that processing resources used in processing the first request have exceeded a first computing threshold for the first request. It is determined that the first request is malicious based on the determination that the processing resources exceed the first computing threshold. A client of the primary computing system from which the malicious request was received is identified, a second request is received from the client, and the second request is routed to a secondary computing system for processing based on the determination that the first request was malicious.

A downhole shunt tube isolation system having a fluid channel and a piston hydraulic chamber disposed within a valve actuator housing, wherein the fluid channel is sealed via a plug to hydraulically lock a valve in an open position, wherein a gravel slurry is configured to flow from a first tube segment through the valve to a second tube segment when the valve is in the open position. A portion of the plug is displaced to open a fluid path through the plug to the piston hydraulic chamber, wherein opening the fluid path to the piston hydraulic chamber hydraulically unlocks the valve, closing the valve via a biasing force to block the flow of the gravel slurry from a first tube segment through the valve to a second tube segment.

The utility model discloses a quasi-zero stiffness vibration isolation device which comprises a support, a positive stiffness vibration isolator and a negative stiffness mechanism. The positive stiffness vibration isolator comprises a first support and a second support, a first supporting column is arranged on the first support, and the second support is connected to the first supporting column in a sliding mode. The negative stiffness mechanism comprises an unsprung synchronization unit and a sprung synchronization unit, the unsprung synchronization unit is provided with a second supporting column, and the second supporting column is coaxially located above the first supporting column; an elastic damping structure is arranged between the first support and the second support, and a plurality of negative stiffness elements are arranged between the unsprung synchronization unit and the sprung synchronization unit to form vertical negative stiffness. The utility model relates to the field of vibration reduction and isolation, realizes that the dynamic rigidity is low or is close to zero in a static balance state, solves the difficult problem when a traditional linear vibration isolation system isolates low-frequency or ultralow-frequency vibration, reduces the initial vibration isolation frequency, enlarges the vibration isolation frequency range, and improves the vibration isolation efficiency of the system.

To provide a droplet forming technology capable of stably sorting a droplet. Provided is a microparticle sorting device provided with a voltage supply unit that supplies a drive voltage to a vibration element that applies a vibration to an orifice that generates a fluid stream, a control unit that controls a driving condition supplied to the vibration element on the basis of a relative relationship between a droplet discharged from the orifice and a satellite droplet present between droplets, and a sorting unit that sorts the droplet containing microparticles on the basis of optical information detected from the microparticles flowing through a flow path.

The utility model discloses a cabinet that internal board position is adjustable relates to cabinet field. The utility model discloses a cabinet main part, the inside of cabinet main part is provided with the blocking mechanism for isolating pipeline, the blocking mechanism includes two groups first blocking plate and second blocking plate, the board face of first blocking plate and second blocking plate is curved type, is used for avoiding pipeline, first blocking plate and the inner wall fixed connection of cabinet main part, the inside slide connection of cabinet main part with the upper and lower sides of second blocking plate, the utility model discloses through setting up the second blocking plate of slidable and the fixed first blocking plate form dynamic isolation system, will the sewage pipe and water supply pipe and the physical separation of storage space, directly reduce the damp influence of pipeline water seepage to article, and the curved board face sets up and avoids the pipeline trend, guarantees the feasibility of maintenance while optimizing space utilization, provides additional moistureproof protection for article, avoids mould breeding problem, improves the health level.

Disclosed is an isolator for an aircraft fuel tank, the isolator configured to isolate a conductive interior panel of the fuel tank from a conductive duct passing through the panel. The isolator comprises: a plurality of first attachment points for attaching the isolator to the panel; a plurality of second attachment points for attaching the isolator to the duct; and an aperture defined by an outer wall and extending from a first side of the isolator to a second side of the isolator, the aperture configured to receive the duct in use; wherein the isolator comprises a non-conductive material. Also disclosed is an isolation system, an aircraft and a method of isolating a conductive interior panel or an aircraft fuel tank from a conductive duct passing through the panel.

The safety barricade system for use with metal grate flooring may include a stanchion, one or more retainers, and a warning light. The bottom of the stanchion may detachably couple to a metal grate includes a floor and may be held in place by the one or more retainers. The stanchion may be vertically-oriented such that the top of the stanchion is elevated above the metal grate, placing the top of the stanchion within the cone of vision of a user. The stanchions may be used individually to designate a position. The stanchions may be used in groups and in conjunction with caution tape to designate a boundary. The warning light located at the top of the stanchion may be illuminated to increase the visual awareness of the stanchion.

A downhole permeability monitoring apparatus for a hydrate, comprising a sealed housing (1), a pressure system, a fluid isolation system, a control and data processing system, a measurement system, and a plurality of valves. The fluid isolation system confines the sealed housing (1) in a test section; a pressure value in the test section is measured by means of the measurement system; the pressure value in the test section is adjusted by means of the pressure system, so as to disturb the pressure in the test section; and by means of a variation in the pressure value, a pressure variation curve is obtained, so as to calculate the permeability of a hydrate reservoir.

A power tool includes a housing, a motor positioned substantially within the housing, a drive mechanism supported by the housing and coupled to the motor, a battery pack electrically coupled to the motor, and an isolation system. The isolation system includes an interface member positioned substantially within the housing. The interface member receives a portion of the battery pack to electrically couple the battery pack to the motor. The isolation system also includes a plurality of isolators coupled between the housing and the interface member to isolate the battery pack from the housing during operation of the power tool.