141 results about "Seismic hazard" patented technology

Provided is an earthquake disaster rescue command and dispatch system and a method thereof; the system consists of a command center subsystem, a remote sensing satellite subsystem, an unmanned plane subsystem, a police population information subsystem, a weather information subsystem, a medical information subsystem, a relief goods repertory subsystem and input/output interfaces; by analyzing disaster information and disaster rescue information collected by each aforementioned system, a hierarchical model of earthquake disaster rescue can be built by an analytic hierarchy process; meanwhile, based on the actual situations of former earthquake disaster rescue, respective disaster rescue plan and analytic hierarchy process disaster rescue parameter database can be built. When an actual earthquake disaster happens, the current disaster situations are analyzed by the analytic hierarchy process, and the disaster rescue plan is quickly determined. The designed system and method herein are more applicable to collecting relative information quickly as soon as the earthquake happens, and automatically selecting the rescue plan for the command dispatch of the disaster rescue.

The invention relates to a quake-proof cradle for infants, comprising a cuboid external frame, an inner layer bed body, an arc-shaped protective cover, a rotating square frame, a triggering device and a transmission device. The cuboid external frame is welded into a cuboid framework by stainless steel tubes and the upper surface thereof is provided with a movable bearing beam capable of opening and closing; the central parts of the frameworks at the symmetrical surfaces of the cuboid external frame are fixedly provided with the bearing beams; two opposite sides of the rotating square frame are arranged on the bearing beams of the cuboid external frame through the bearings; two opposite sides of the inner layer bed body are arranged on the rotating square frame through the bearing; the mounting connection lines of the bearings on the bearing beams and the bearings on the rotating square frame are intersected vertically; the transmission device is arranged below the inner layer bed body; the wireless signals of a vibrating sensor can start a transmission system for closing the arc-shaped protective cover immediately; and the vibrating sensor in the triggering device is arranged at the bottom of the cuboid external frame. The quake-proof cradle for infants uses the self stable inertial system and the arc-shaped protective cover which is fast pop-out for temporarily and directionally protecting the infants from the earthquake disasters.

Wherein, it relates to a GIS platform, a database, and remote data exchange software. The system can query data, display result, maintains and converts between data and image; it can automatic evaluate loss according to damage sample data, and outputs evaluation report.

The invention belongs to the technical field of safety devices for earthquake disasters, and relates to an intelligent earthquake bed which solves the technical problems of complicated structure, low work stability and the like in the prior art. The earthquake bed comprises a bedstead, wherein two bed board shafts which are distributed along a long shaft of the bedstead are arranged on the bedstead; a bed board is fixed on each bed board shaft; a power mechanism capable of enabling two bed boards to rotate in an opposite direction and enabling a human body positioned on the bed boards to fall into the bedstead is arranged between the bedstead and the bed board; after the human body falls into the bedstead, the bed boards can be driven by the power mechanism to cover over the human body; the power mechanism is connected with a control circuit; and a pressure sensor and an earthquake sensor are connected to the control circuit. The intelligent earthquake bed has the following advantages of: reasonable design, simple structure, high automation degree, convenient operation and use, high safety performance, capacity of effectively protecting the human body when an earthquake occurs and avoiding injuries and deaths, high work stability, stable rotation of the bed boards, and no damage to the human body when the human body falls.

An earthquake disaster prevention system having: an estimation section to estimate a size of an earthquake from a P-wave of the earthquake detected by the earthquake detector; a stopping control section to control to stop the motion of the operation device when the size of the earthquake estimated by the estimation section exceeds a stopping reference value; a calculation section to calculate at any time the size of the earthquake from the S-wave of the earthquake detected by the earthquake detector; a convergence judgment section to judge convergence of the earthquake by judging whether a predetermined earthquake convergence condition is satisfied from the size of the earthquake calculated by the calculation section; and a resumption control section to resume a predetermined motion of the operation device stopped by the stopping control section when the earthquake is judged to have converged by the convergence judgment section.

The invention discloses a method for analyzing seismic vulnerability based on extending PBEE2 theoretical framework, and belongs to the technical field of seismic risk and seismic hazard prediction analysis. The method comprises the steps that 1, a typical structural space is built: 1.1, ratios of the intensity, the height and the width of seismic fortification are selected as the dominant parameters affecting the structural seismic performance; 1.2, the typical structural space is built based on the principle of logic tree; 1.3, every typical structure is designed by adopting PKPM; 2, a correlation matrix of the parameters of the main design structure and the parameters of a probabilistic seismic demand model of the main design structure is built; 3, a probabilistic seismic vulnerability function is assigned based on a class of logarithmic normal distribution. The method achieves the building of a class of functions for resolving seismic vulnerabilities; the method is simple and reliable to operate, and provides a theoretical foundation for rapid prediction of regional seismic damage of a city complex, and is more suitable for the prediction of regional seismic damage of the city complex.

The invention discloses an assembly type recycled concrete node with steel bar truss girders at end parts and a manufacturing method thereof, belonging to the technical field of constructing of prefabricated parts and key nodes and regenerating of concrete. The assembly type recycled concrete node has the advantages of environment friendliness, energy saving and convenience in construction, and is applicable to prefabricated construction, so that the problems that the key nodes of the existing prefabricated parts are poor in seismic performance and severe in seismic hazard, and the defect that the node construction is difficult can be overcome by integrally casting a wing-tip beam and an upright post; and moreover, autoclaved curing prefabrication forming is adopted, so the compactness, the casting quality and the strength of the concrete at the nodes are remarkably improved, thereby realizing an anti-seismic design target of strong nodes and weak rods, as well as connecting the wing-tip beam with the prefabricated beam with the steel bar truss girders by bar splicing. A stirrup strengthening zone is arranged at the connecting part, and the connecting part is set to be a post-cast strip, so that plastic hinges are easily formed under earthquake load action. An ideal failure mechanism with the anti-seismic design concept of strong columns and weak beams, and strong shear and weak bending can be extensively applied to precast construction.

The invention discloses a three-dimensional automatic modeling and visualization method for a city building. In a data preprocessing stage, integrated management is carried out by aiming at multisource data, and the data can be overlapped in three-dimensional digital globe software to be displayed. In the three-dimensional modeling stage of the city building, according to building vector data andattribute information thereof, automatic modeling or color rendering or texture mapping is carried out. In the loading and dynamic visualization stage of a three-dimensional building model, on the basis of a LOD (Limit Of Detection) storage model, a quadtree index and a caching technology, quick data reading and rendering can be realized. Finally, in a comprehensive application stage of earthquakeprevention and disaster reduction, earthquake emergency and earthquake damage prediction application requirements are combined and can be directly integrated into a corresponding business applicationsystem to be used. Under a large-range city scene condition, the three-dimensional quick and automatic modeling and visualization of the building can be realized, and the problem of the three-dimensional visualization expression of the earthquake disaster situation of the city building.

The invention belongs to the technical field of cluster node monitoring, and provides an earthquake industry cluster equipment active monitoring system and a polling mechanism. The system comprises a central monitoring system and a cluster. The cluster comprises multiple cluster nodes. Each cluster node is connected with the central monitoring system via a communication link. The cluster nodes in the cluster are divided into two queues, and the polling sequence of each node in the queues is dynamical allocated step by step according to priority; a dynamic queue priority threshold value is set; each node of the static queue has equal status; in one polling period, polling is performed by the central monitoring system according to node priority, and node priority is reduced after polling; polling of the static queue is performed if polling is completed; and if one time polling of the dynamic queue is not completed within polling time, polling directly ends. Earthquake monitoring waveform and other information are ensured to be accurately and timely acquired when an earthquake comes so that earthquake disaster influence can be reduced to the largest extent, and communication link guarantee can be provided to earthquake monitoring data transmission.

The invention provides an acquisition and classification method and system of earthquake emergency and disaster information. The method comprises the following steps: capturing target network information through data crawler tools; performing word segmentation and part-of-speech tagging on the captured target network information and acquiring text segmentation information; calculating the overallindex value of the target network information based on initial weights of preset key words and the text segmentation information, and matching the corresponding information type with the target network information. The method provided by the invention ensures accuracy of data classification by means of word segmentation of the network information based on characteristics of different types of theearthquake emergency information and text classification based on the weights of the key words. According to the invention, an emergency information index system for public participation is generallyestablished to realize fast collection and acquisition tools of the emergency information, extend the information source for the earthquake emergency and improve timeliness and accuracy of the earthquake disaster emergency service.

The invention discloses a moving target emergency tracking system and method and a seismic hazard range determining system and method. The moving target emergency tracking system comprises a server and a mobile terminal, and a moving target database is established at the server; when an emergency tracking event occurs, the server screens out a tracking target and sends an emergency tracking request to the mobile terminal carried by the tracking target; the mobile terminal receives and analyzes the request and sends current position information to the server so that emergency tracking can be started. The seismic hazard range determining method comprises the following steps that firstly, a rough disaster area range is determined according to the epicenter and intensity, a moving target permanently staying in the rough disaster area range is screened out, emergency tracking is conducted on the moving target, the feedback position of the moving target is obtained, the rough disaster area range is divided into a plurality of sector units with the epicenter as the center, and points, closest to the epicenter, of all the units are connected in sequence so that a more accurate severely-damaged area of a disaster area can be obtained. The moving target emergency tracking system and method and the seismic hazard range determining system and method can reduce the network transmission data volume, reduce the storage pressure on the database of the server and improve the determining efficiency of the severely-damaged seismic hazard area.

The invention relates to a city building group seismic hazard matrix dynamic prediction method. The method aims at solving the problems that any designated region cannot be dynamically displayed through related method since the different years, different floor numbers and other conditions of the residence community in the city are incompletely considered in the prior art. The specific process is as follows: step one, determining a structure type of the building; step two, determining and computing seismic hazard factors and the number N thereof of the building structure types in different regions; step three, determining dij, Omega and T; step four, computing each type of seismic hazard factor; step five, computing the total seismic hazard factor; step six, computing Lambda; step seven, computing D; step eight, determining the damage level of single building or community; step nine, computing the damage levels of all single buildings or communities needing to be computed, and not computing the computed damage levels; and step ten, dynamically providing a corresponding seismic hazard matrix in combination with computer software. The method disclosed by the invention is used for the seismic hazard prediction field of the building structure.

The invention belongs to the technical field of earthquake disaster early warning analysis, and relates to a BIM-based building group earthquake damage simulation visualization system and method. thesystem includes a user management module, a model management module and a model display module, wherein the user management module comprises a user query and user deletion unit; the model management module comprises model query, model upload, model deletion and time history data uploading units; the model display comprises BIM three-dimensional model display, BIM model shake display, BIM model collapse display, BIM damage display and regional fire simulation unit; accurate modeling of the building entity from appearance design to an internal structure can be achieved, high-reality restorationof situations such as shaking, collapsing and damage of a building group when an earthquake disaster occurs is achieved, development of earthquake-proof and disaster-reducing series work is facilitated, and earthquake disaster damage of an urban area is effectively reduced.

The invention provides a high-speed railway seismic data information acquiring and early warning system. The system comprises a seismic fluctuation information acquiring device, a current signal/numerical signal converting device, a device for dynamically generating a seismic hazard risk reference threshold, a determining device for starting an early warning program, a positioning device, a train control device used for controlling the speed of a train, a storage device and a control device, wherein a control module serves as a core of the whole system and is used for controlling the operation of the devices on the one hand, and is used for being connected with an external devices such as an external computer device to realize communication and control. According to the system, the reference threshold for evaluating the seismic hazard risk is generated by a dynamic generation manner; the history situation is continuously updated after the latest early warning with combination of the history hazard occurrence situation; compared with the history data, the risk pre-evaluation of one region can be completely and scientifically considered. The invention also provides a high-speed railway seismic data information acquiring and early warning method.

The invention discloses a self resetting shape memory alloy (SMA) viscous damper relating to an architectural component. The viscous damper comprises a connecting piece, an outer barrel, a baffle, a piston, an inner barrel and a push-and-pull rod. The viscous damper is characterized in that the form of a double-extrusion rod oil cylinder is adopted by the inner barrel of the damper, the inner barrel is full of silicone oil, and the piston and the oil cylinder keep a spacing; both ends of the inner barrel are respectively provided with a baffle, and the baffles can move in the outer barrel; two groups of SMA wires pass through the oil cylinder, and both ends of the SMA wires are fixed on the baffles by using a clamp; the inner barrel and the outer barrel are connected by a bolt, and a front cover, a rear cover and the connecting piece are welded on the outer barrel. The damper not only has high energy consumption but also has the self resetting function and can set up multiple anti-seismic defensive lines for an architectural structure, therefore improving the seismic hazard resistance of the architectural structure.

The invention discloses a PFA wavefront bending correction method for bistatic bunching SAR suitable for any platform track. The method includes performing imaging system parameter initialization; performing processing on echo data by adopting a polar coordinate format algorithm; and performing high-order space-variant phase compensation imaging. The correction of PFA wavefront bending errors forbistatic bunching SAR can be realized by adopting a method of constructing a bending error compensation filter; through a method of interpolation mapping, the space-variant wavefront bending error compensation filter can be constructed, so that consistent focusing images of bistatic bunching SAR can be obtained with high efficiency; and high resolution imaging processing can be realized in a largeimaging scene scope, so that an aircraft carrying a bistatic SAR system can perform better in the fields such as battlefield reconnaissance and surveillance, material airdrop and earthquake disasterrescue.

The invention discloses a method for constructing an earthquake disaster casualty population estimation model. The method includes a step of acquiring a plurality of historical seismic data includingmagnitudes of earthquakes, epicenters of the earthquakes, earthquake years, and earthquake casualty population, a step of determining the affection area of an earthquake of this time according to theearthquake magnitude and the epicenter of the earthquake, a step of determining a total population of the earthquake affection area according to population distribution data of the earthquake affection area, a step of obtaining a population casualty rate of the earthquake according to the earthquake casualty population and the total population of the earthquake affection area, and a step of establishing the earthquake disaster casualty population estimation mode characterized by an earthquake magnitude according to the magnitudes of historical earthquakes and corresponding earthquake population casualty rates. By using the model, the scope and casualty population of an earthquake disaster affection area can be quickly calculated at the first time of obtaining the earthquake magnitude, anda basis is provided for corresponding rescue measures through the rapid evaluation of a casualty after an earthquake disaster.

The invention provides an earthquake damage assessment system which comprises an earthquake information acquiring device, an earthquake source surrounding population distribution two-dimensional mesh generating device, an earthquake radius area population calculating device and a first earthquake damage assessment device. The earthquake information acquiring device is used for acquiring earthquake information in earthquake areas. The earthquake source surrounding population distribution two-dimensional mesh generating device is used for generating an earthquake source surrounding population distribution two-dimensional mesh. The earthquake radius area population calculating device is used for dividing the earthquake source surrounding population distribution two-dimensional mesh into n areas and respectively calculating gross population in each of the n areas. The first earthquake damage assessment device is used for assessing the first casualty number P in the area according to the earthquake information and distance between the earthquake source and each of the n areas divided by the earthquake radius area population calculating device. Therefore, the problem of serious time delay in data publishing caused by the fact that casualty numbers in earthquake disasters can be assessed only after acquiring multiple aspects of related information in related technologies is solved, and the technical effect of timely assessing casualty numbers in earthquake areas is achieved.

The invention provides a house earthquake damage matrix curve analysis method based on earthquake motion parameters and a corresponding system. Based on the corresponding relationship between the intensity and the seismic oscillation parameters, a maximum likelihood estimation method is adopted; A correct house vulnerability matrix or a damage ratio result of actual earthquake damage statistics isconverted into a dual-parameter vulnerability curve, the defect based on the intensity vulnerability curve is overcome, and a simpler and more convenient way for obtaining the vulnerability curve isprovided for the structural types, difficult to simulate and analyze, of civil engineering, bricks, stones and the like. And on the basis of the relationship between the intensity and the seismic oscillation parameters, seismic vulnerability curve characteristic parameters of various house structures are given, and basic data can be provided for house building seismic damage assessment based on the seismic oscillation parameters. The method and the system are high in reliability and wide in application range, and can be used for verifying and perfecting an existing vulnerability matrix or curve, so that the method and the system can better serve the fields of rapid evaluation of earthquake disasters, risk evaluation, insurance estimation and the like.