488 results about "Disaster area" patented technology

The invention discloses a power line patrolling method which concretely comprises the following steps that: an unmanned aerial vehicle equipped with a photographing device and a navigation system is used for automatically recording the real-time image data of the power line according to a preset flight course and feeding back the data information of the flight point position at real time; and a suspected fault point on the power line is confirmed according to the analysis result of the image data and the corresponding flight point position data. With the power line patrolling method disclosed by the invention, the unmanned aerial vehicle can go deep into all areas of the power line to patrol without the limitations from complex landforms and conditions of a disaster area, so manpower and material resources can be greatly saved, the working efficiency of patrolling the power line is greatly improved and the danger level of manual operation is reduced.

The embodiment of the invention discloses a control method and device of disaster response unmanned aerial vehicle base stations. The method comprises the following steps: performing rough estimation on the terrain and ground to air channel characteristics of a disaster area, calculating the initial number of unmanned aerial vehicle base stations, and initial positions and initial heights of the unmanned aerial vehicle base stations; deploying the unmanned aerial vehicle base stations according to the initial positions and the initial heights of the unmanned aerial vehicle base stations, and providing network access services for users within the coverage by the unmanned aerial vehicle base stations; periodically measuring, recoding and uploading channel quality information of the users within the coverage of the unmanned aerial vehicle base stations with the unmanned aerial vehicle base stations by the unmanned aerial vehicle base stations; and performing accurate estimation on the terrain and the ground to air channel characteristics of the disaster area by the analysis of the channel quality information, and periodically adjusting the deployment positions and heights of the unmanned aerial vehicle base stations according to the accurate estimation results. By adoption of the control method and device disclosed by the invention, the network communication rate of disaster response communication assisted by the unmanned aerial vehicle base stations can be improved.

The invention relates to a disaster condition acquisition system capable of quickly acquiring disaster conditions after a disaster. Disaster condition images of a disaster area are acquired in real time by controlling an unmanned aerial vehicle to fly over the disaster area and using image acquisition equipment such as a video camera, a digital camera, a forward looking infrared unit and the like carried by the unmanned aerial vehicle, and the disaster condition images are transmitted to an image analysis device on the ground in real time; and the image analysis device processes the disaster condition images returned by the unmanned aerial vehicle in real time to acquire the disaster condition images of the disaster area in shortest time. The system breaks through the adverse situation that disaster relief is delayed because the communication of the disaster area is interrupted and the disaster conditions of the disaster area cannot be acquired in time after a catastrophe such as an earthquake and the like; and the system can provide first hand information for activities of quickly organizing rescue and relief work and reconstruction work after the disaster.

The invention discloses a cost optimization unmanned aerial vehicle base station deployment method based on an improved genetic algorithm, and mainly solves the problem that the unmanned aerial vehicle base station deployment cost is difficult to optimize in the prior art. The realization method comprises the following steps: 1) establishing a ground wireless communication coverage model of the unmanned aerial vehicle base station; 2) calculating the maximum coverage radius and the optimal hovering height of the unmanned aerial vehicle base station in the unmanned aerial vehicle base station ground wireless communication coverage model scene; 3) deploying the unmanned aerial vehicle base stations at the optimal hovering height, enabling the deployment problem to be reduced from three-dimensional dimensionality to a two-dimensional plane, establishing an unmanned aerial vehicle base station deployment optimization model taking unmanned aerial vehicle base station deployment number optimization as a target, and solving the model to obtain an optimal chromosome; 4) converting the optimal chromosome into a corresponding unmanned aerial vehicle base station coordinate set to obtain an optimal unmanned aerial vehicle base station deployment scheme, reducing the complexity of the deployment problem, improving the solution accuracy, and being applicable to communication network deployment planning, temporary communication network construction and disaster area emergency communication.

A disaster information handling method based on a broadcasting system and a mobile terminal supporting the same is provided. The method includes receiving a broadcast signal, determining whether disaster information is present in the received broadcast signal, when disaster information is determined to be present in the received broadcast signal, extracting geographic data of a disaster area from the disaster information and extracting location data of a transmitting base station from the received broadcast signal, and performing an alert output operation according to the distance between a site indicated by the geographic data and a site indicated by the location data.

Methods and compositions for developing a series of microfluidic, USB-enabled, wireless-enabled, lab-on-chip devices, designed to reduce the chain-of-custody handling of samples between sample acquisition and final reporting of data, to a single individual. These devices provide on-the-spot testing for micro- and nanoscale (molecular) analysis of blood, urine, infectious agents, toxins, measurement of therapeutic drug levels, purity-of-sample testing and presence of contaminants (toxic and non-toxic, volatile and non-volatile); and for the identification of individual components and formal compounds—elemental, biological, organic and inorganic—inclusive of foodstuffs, air, water, soil, oil and gas samples. These devices may be relatively inexpensive, ruggedly designed, lightweight and capable of being employed—depending upon the specific application—by individuals with limited training, in remote and extreme environments and settings: including combat zones, disaster areas, rural communities, tropical/arctic/desert and other inhospitable climates and challenging terrains. The device may be comprised of materials that are reclaimed, are re-usable and are recyclable.

The invention discloses a multi-target distribution and flight path planning method for multiple rescue helicopters, which relates to the technical field of aviation emergency rescue. The method comprises the steps of evaluating aviation rescue task execution feasibility, conducting disaster area map image processing, obtaining a feasibility matrix through the evaluation of the rescue task execution feasibility, taking the feasibility matrix as a coefficient matrix for a solution matrix Xij, solving distribution results according to tasks of different quantities of the rescue helicopters and target points through a Hungary algorithm, obtaining a flight path solution space by extracting a safety zone topological structure by adopting an image processing method and morphological characteristics, obtaining the shortest path in the flight path solution space by a heuristic A* search algorithm, combining the results of multi-target distribution for multiple rescue helicopters, forming an emergency plan for rescue task execution of the helicopters, and calling a Google Earth flight simulation API (Application Program Interface) to demonstrate the emergency rescue plan and making preflight preparation, so as to improve the efficiency and safety of the aviation emergency rescue. The method is simple, the time complexity is low, the flight path planning process is visual, and the result is distinct.

One aspect of the invention provides a method of deploying disaster alerts to a mobile vehicle. The method includes determining disaster area coordinates of a disaster area and calculating buffer coordinates of a buffer region based on the disaster area coordinates. The method further describes a vehicle circle based on a radius of at least one location coordinate of the mobile vehicle and compares the vehicle circle with the buffer region coordinates. The disaster area coordinates are compared with the vehicle circle. The method then deploys at least one disaster alert based on the comparison of the vehicle circle and buffer region coordinates and disaster area coordinates.

Disclosed are a real time automatic update system and method for disaster damage investigation using wireless communication and a web-GIS (Geographic Information System), which are able to prevent disaster recurrence by effectively acquiring various data associated with a disaster area in disaster investigation, quickly establish a disaster register and enable easy searching by loading corresponding data on the web. The system includes a field equipment kit which is comprised of various kinds of equipments for capturing the location of a damaged area, damage cause information, damage images and moving images, and voice information and transmitting them to a server; a damage investigation information receiving server which receives data that is created in the field equipment kit and transmitted therefrom through wireless communication, analyzes/stores disaster data, and classifies/processes the disaster data; a web server which receives data classified suitably for a homepage, a disaster register, a web-GIS, etc. and establishes a disaster register DB and a web DB; a web-GIS server which updates and stores geographical information and geographical property information linked with the web server; and a client terminal which connects to the web server and the web-GIS server to generate a retrieval signal of disaster information and displays the information on the screen.

The invention discloses a high-efficiency condensation and dewfall type air water intake system and belongs to the field of producing water by air condensation. The high-efficiency condensation and dewfall type air water intake system comprises a tank body as well as a heating chamber, a condensation chamber, a water collecting and purifying tank, a compressed refrigeration system and a system control device which are arranged in the tank body, wherein the heating chamber and the condensation chamber are connected by an air guiding pipe; the condensation chamber and the water collecting and purifying tank are connected by a diversion pipe; the compressed refrigeration system comprises a compressor, a heat radiator, a heat absorber and a throttler; the heat radiator is arranged in the heating chamber and is used for heating humid air fed by the outside; a heat insulating layer, the heat absorber, a heat conducting layer and an inverted-umbrella-shaped condensation net core are sequentially arranged from the vertical inner wall of the condensation chamber to the center of a room; the inverted-umbrella-shaped condensation net core is formed by superimposing a plurality of single-layer inverted-umbrella-shaped condensation nets and vertically connecting by stainless steel rods. The high-efficiency condensation and dewfall type air water intake system disclosed by the invention is suitable for certain islands, high mountains, frontier sentries, disaster areas, drought and desert areas and the like where fresh water is deficient, and has huge popularization and application values; the problem that domestic water in local area is unavailable can be effectively solved.

The invention relates to a disaster early-warning system. The disaster early-warning system is used for early warning mountain landslides or debris flow and comprises measuring nodes and a warning center which are communicated through wireless signals, wherein the measuring nodes are used for measuring movement information and position information of a mountain where the measuring nodes are located, and the warning center is used for receiving the movement information and the position information of the mountain measured by the measuring nodes in real time and performing the disaster early warning according to the movement information and the position information. The disaster early warning system is a system for forecasting and warning the debris flow and the mountain landslides in real time. By processing data of a plurality of measuring nodes installed in the mountain, the early warning accuracy degree of the mountain landslides and the debris flow is improved, the situation of failure in disaster report is completely eradicated, panic caused by warning errors is avoided, and the influence of the warning errors to production and life of people in disaster areas is reduced.

In one embodiment, the present invention can include a foldable structure employing material-filled panels which can be used as an emergency shelter in disaster areas. A building can formed from one or more building blocks. The building blocks can be in a compact position, such as when being transported to a disaster area, or in an expanded position, such as when the building is ready to be built in the disaster area. In the expanded position, the building blocks can be filled with various materials such as expanding foam material. The expanding foam material can be formed from two mixing materials. In addition, the expanding foam material can have insulating properties. The building of the present invention can also be used, for example, as sheds, tree houses, and/or permanent housing. The building blocks can have marine applications and/or military application due to their light weight, yet, ballistic nature.

The invention relates to a wireless detecting ball for dangerous area detection, which comprises a protective cover, a shell, at least one gas sensor, a data processing device, a wireless emitting module and a power supply, wherein the shell is positioned in the protective cover; the at least one gas sensor is positioned in the shell; the data processing device is electrically connected with the gas sensor; the wireless emitting module is electrically connected with the data processing device; and the protective cover is in a split way, a sucking disk for shock absorption is densely distributed on the outer surface, and a plurality of through holes are arranged on the position near the sensor; The invention is used for mine rescue and can detect the environmental parameter (comprising CH4, CO2, CO, O2) of a disaster area outside 30-100m in advance. The detecting ball detects the gas concentration of the disaster area and transmits the data to a wireless receiving host machine in a wireless way.

The invention discloses a method for finding an optimal traffic route under disastrous environments. The method includes: establishing a road traffic network topological graph taking cities as nodes and roads connecting the cities as arcs according to the graph theory and actual traffic geographic information, wherein the actual traffic geographic information includes length, degree of reliability and capability of intercity roads; when a certain area in the road traffic network topological graph is in a disaster, calculating disaster situation of each road in the road traffic network topological graph according to area and strength of the disaster, and updating the length, the degree of reliability and the capacity of the roads according the disaster situations; utilizing the network algorithm to extract m feasible routes from a node O to a target node D from the disaster area; and choosing the optimal route from the m routes according to the updated length, degree of reliability and capacity of the roads. By adopting the method, an effective auxiliary decision-making basis can be provided for evacuation guiding and rescue directing under the disastrous environments.

The invention provides a method and a device for identifying deformation type diseases of a pavement. The method comprises the steps of S1, according to pre-acquired three-dimensional model of the to-be-tested pavement, acquiring deformation depth information of the to-be-tested pavement; S2, according to the deformation depth information, extracting a suspected disease edge through an edge detecting algorithm; S3, acquiring a preliminary positioning disaster area according to the deformation depth information and the suspected disease edge, and positioning the disease area through area growthrestoring processing; and S4, acquiring the disease attribute set of the disease area, and identifying the disease type of the disease area according to the disease attribute set. According to the method and the device, through acquiring the disease depth information and a deformation depth image, the disease area in the pavement is accurately extracted, thereby ensuring integrity of the diseasearea. Furthermore the disease type of the disease area is accurately identified through the disease attribute, thereby realizing high-efficiency and high-accuracy testing and identification for the deformation type disease of the pavement.

The invention relates to a power system short-term risk determination method taking disaster factors into account and belongs to the field of power system reliability and risk analysis. The method comprises the steps: geographically dividing regions where disasters causing power system transmission line failure are distributed (disaster regions for short, e.g. regions of lightning strokes, ice disasters, bird hazards and the like); establishing a corresponding relationship between power transmission devices and the disaster regions according to positions of the power transmission devices of a power system and the geographical distribution of the disaster regions; calculating the conditional failure rate of the power transmission devices located in the disaster regions when the disasters occur through carrying out statistics on historical failure of the power transmission devices of the power system and reasons for the historical failure; determining the power outage risk of the power system in a future short term by using power system risk assessment techniques according to weather forecast information and the conditional failure rate of the power transmission devices. By using the method, potential power outage accidents of the power system under disaster weather are warned, and maintenance plans and operating modes for the power system are arranged reasonably, so that large-scale power outage accidents of the power system are prevented.

The present invention relates to an optical integration system for disaster emergency broadcasting communication, including: sensor units which detect surrounding temperatures and strains and are separately located from each other; a broadcasting communication integration unit for transmitting an integrated broadcasting communication optical signal by multiplexing a received broadcasting signal and a received communication signal as optical signals having different wavelengths; reception units which receive the optical signal transmitted from the broadcasting communication integration unit, demultiplex the received optical signal according to each wavelength, transmit the separated broadcasting signal and the separated communication signal to a corresponding peripheral terminal, and transmit the information detected through the sensor units to the broadcasting communication integration unit; and a management server for determining a disaster state from the information which is detected through the sensor units and is received through the reception units and the broadcasting communication integration unit, and transmitting a processing signal through the broadcasting communication integration unit to the reception units according to the disaster state when determining the disaster state, wherein the management server transmits a signal to each guiding indication lamp connected to the separately arranged reception units on the basis of a location information database in which the location information of the sensor units is stored according to the recognized disaster state, and transmits an emergency guide broadcasting signal to the peripheral terminal, and each reception unit includes a mobile remote management server which further connects wireless sensor nodes so as to perform communication through the restoration of retrievable wired/wireless networks in the disaster state, and transmits the information through the wireless sensor nodes to the reception units by enabling communication with the management server and enabling remote connection with the wireless sensor nodes. The system of the present invention can induce reconstruction of destroyed power and information communication networks as emergency networks, and active evasion from a disaster area using independent emergency power in the disaster state.

A debris flow geological disasters identification method based on remote sensing satellite images comprises the following steps: carrying out primary localization on debris flow disaster areas according to historical disaster data and current meteorological situations; acquiring satellite image data of the positions according to the primarily located disaster positions; carrying out computer automatic recognition on debris flow areas in the satellite images, and extracting automatically recognized debris flow areas; acquiring DEM data of the positions according to the positions of the automatically recognized debris flow areas; carrying out image fusion on the satellite images and the DEM data, and carrying out image enhancement to generate a 3D terrain image with height information; carrying out manual corrections on the automatically recognized debris flow areas based on the 3D terrain image; drawing a debris flow geological disaster area image according to the corrected debris flowrecognition areas, and judging possibility, scale and treatment scheme of further disasters by combining other data.

The invention relates to a construction method for an urban disaster prevention and fighting informationalized rescue command comprehensive intelligent platform. The method organically integrates the telemetry and remote-sensing devices for video monitoring and fire detection and alarm, the CHINANET, and the acoustic and optical analysis and data transmission techniques. Through the establishment of a local area network which is connected with the CHINANET and is specialized in disaster prevention and rescue handling, the platform realizes the real-time acquisition of a great amount of disaster area information (including the information about the disaster occurrence process) in a most economical mode within the shortest time, shares the real-time information with related experts and technical staff for analysis and treatment in a safe mode, and provides a brand-new informationalized solution for the disaster cause analysis, process recording and rescue handling. The invention also provides a practical solution for the wider practical and daily application of the system. Simultaneously, the method related to data acquisition and processing also breaks an inherent data source, acquisition and transmission mode of the optical analysis.

A relay device comprises: a routing controller configured to perform learning of routing information, which includes area information used to identify a relay area of communication packets and a network address of one or more other relay devices, and to determine a relay route of the communication packets, based on the learnt routing information; and a relay module configured to send the communication packets received by the relay device to a destination address of the received communication packets, based on the determined relay route. When the relay device receives a disaster notification packet notifying of a disaster area and when the determined relay route includes the disaster area, the routing controller changes the relay route to an alternative relay route that does not include the disaster area.

The invention discloses a multi-relay route establishment scheme of a low-altitude relay system, facing to emergent data communication. A receiving node configured with a gateway and a return link function module, at least two enhancement-type aerial relay platforms loaded on a low-altitude balloon, and a plurality of ground mobile terminals containing wireless interfaces are used in the multi-relay route establishment scheme. Broadcast messages are firstly sent to the relay platforms by the receiving node in a route establishing process; a communication link that the relay platforms reach the receiving node is established; route information is broadcast to other relay platforms and the ground mobile terminals by the relay platforms after random waiting time; a communication link between the relay platforms and the communication links between the ground mobile terminals and the relay platforms are established; directional antennae and a high-power wireless AP (access point) are used by each relay platform, and each relay platform has high-capacity caching, so that data storing and forwarding functions can be realized; and the lower deployment cost and the wider coverage range can be realized by adopting a multi-hop manner by the network, and the condition that high-quality communication networks can be rapidly and flexibly established in disaster areas can be realized.

The invention discloses a disaster area power grid state monitoring method. Through a monitoring device at a power grind on-line monitoring end, power grid equipment state parameters are collected, an intelligent processor of the power grind on-line monitoring end processes monitoring data and obtains the damage situation of power grid key equipment, and the damage situation of the power grid key equipment, position information and time information are reported to a power grid monitoring center in real time through a plough short message communication system. Quick and effective monitoring of the power grid state in a disaster area after natural disasters happen can be achieved, the time for disaster area power recovering can be greatly shortened, and economic loss and casualties caused by the natural disasters can be well reduced.

The invention discloses a road blocking information extraction based on deep learning image classification, and the method comprises the steps: building a road blocking image classification sample library through employing a disaster typical case image, carrying out the training of a convolutional neural network, and obtaining an initial convolutional neural network model CNNmodel0; obtaining a post-disaster image I (x) and a road vector R (x) of the research area x, and detecting road blocking to obtain a to-be-detected sample Dn (x); using the trained network CNNmodel0 to perform multi-pointroad blocking detection of adding detection points in the vertical normal direction of the road vector direction on the sample Dn (x) to be detected: selecting a small number of road segments to generate new training sample data S1, and performing network fine tuning on the existing network; and repeating the road blocking classification detection work until the detection result meets the precision requirement. Various precision evaluation indexes of the improved convolutional neural network model are superior to those of an original model, and the improved convolutional neural network modelis more suitable for specific problems of disaster area road blocking image classification and detection.

The invention provides an emergency search and rescue method, a device, a system, a computer storage medium and a device. The method comprises the following steps: after a current micro base station reaches a target disaster area, establishing a base station communication return link according to a communication environment around the target disaster area; scanning a target affected area in a first flight mode of the unmanned aerial vehicle system to obtain a user terminal registered and/or resident by a current micro base station in the target affected area; in a second flight mode of the unmanned aerial vehicle system, scanning an area where each acquired user terminal is located to obtain position coordinate information of a corresponding user terminal; sending the obtained position coordinate information of each user terminal to a user data platform through a base station communication return link, so that the user data platform generates an emergency search and rescue report according to the position coordinate information of each user terminal. The invention can quickly count the number, position and distribution of the disaster victims, and provide guidance for subsequent rescue.

The invention discloses an Android-based wireless local area network communication method and an Android-based UDP Socket communication. The adding of a new node into a mobile network is found in real time and a node list is updated. When a node leaves, a response can be made in real time and the user in the network is notified, and the cross-segment communication is realized. An Android system configuration and the composition of an application program are analyzed in detail, the work principle and usage skill of the Activity and the Broadcast Receiver are discussed emphatically, on the above basis, Java is used as a software programming language, the WLAN technology is used as a hardware support, the assembly content provided by Android is called reasonably, the communication system based on a wireless local area network is realized, and through system development and later experiments, the application software can be applied to occasions such as field investigation and disaster area rescue.

A system for space-based global quick delivery of a disaster relief unmanned aerial vehicle is characterized by comprising a carrying relay transmission spacecraft (1), an autonomous reentry delivery cabin (2) and an unmanned aerial vehicle (3). The carrying relay transmission spacecraft (1) runs on a satellite orbit, the autonomous reentry delivery cabin (2) is connected with the carrying relay transmission spacecraft (1), and the autonomous reentry delivery cabin (2) carries the unmanned aerial vehicle (3). The characteristics that an on-orbit spacecraft can reach any place globally quickly and the characteristics that the unmanned aerial vehicle can go deep into a disaster core area to collect information in a close range are utilized comprehensively. The unmanned aerial vehicle is loaded on the spacecraft to perform on-orbit flight, the global coverage characteristics of the unmanned aerial vehicle are utilized to break through voyage and speed limitation of a conventional spacecraft, the disaster emergency response speed is improved, reentry means is utilized to deliver the unmanned aerial vehicle above a disaster area to perform closing up reconnaissance, the problem that the satellite imaging resolution is not enough is solved, and the disaster emergency response efficiency is improved.