31results about How to "Shorten search and rescue time" patented technology

The invention provides a method for positioning nodes of a wireless sensor network for maritime search and rescue. The method comprises the steps of calculating the initial positioning position information of a selected beacon node which is closest to the position of a target node and has the same movement state through maximum likelihood estimation positioning algorithm; correcting the initial positioning position information of the selected beacon node for the first time to obtain the position information of the selected beacon node after first correcting; correcting the coordinate error of the position information of the selected beacon node after first correction to obtain the final position of the selected bean node; correcting the initial positioning position information of the target node, calculated by the maximum likelihood estimation positioning algorithm according to the final position of the selected beacon node and the first correction and coordinate error correction results, so as to obtain the final position of the target node. The method is adapted to marine wireless sensor network with relatively high dynamics, and can provide real-time and accurate node position information.

The invention discloses a cap having a lighting function. The cap comprises a cap body; an outer wall of the cap body is provided with an electric box; the outer wall at the top of the cap body is provided with damping arcs and an alarm; an outer side of the electric box is provided with a sliding chute and an external connecting line; the electric box is in clamp connection with a lamp socket via the sliding chute; one side, far from the sliding chute, of the lamp socket is connected with a wheel shaft; the lamp socket is connected with a lamp post via the wheel shaft; the wall of the lamp post is provided with a switch, an interface, a hand rocking bar and a fixing rope; one end, far from the sliding chute, of the lamp post is connected with a lamp holder; an inner wall of the cap body is provided with an inner liner; the center of the inner side of the inner liner and the inner wall of the cap body are provided with health care layers; and the inner side of the cap body is provided with fixing bands. The cap is artistic and convenient to operate, the height angle of the lamp is adjustable, users can be well protected, and the cap is suitable for promotion and application.

The invention discloses a method for searching and rescuing victims through a robot. The method includes the following steps that the victims and the position of the victims are identified; the victims and the position of the victims are recorded to a record chart; the target victims are sought for and rescued according to the record chart. The robot can identify the victims at ordinary time and record the victims and the position of the victims, so that a historical record chart is formed. Thus, when the target victims need to be sought and rescued, the rescuing time can be shortened according to the record chart, and the searching and rescuing accuracy is improved.

The invention discloses a maritime search and rescue device. A ship body of the maritime search and rescue device is of a three-body structure and comprises two wings and a main body; the two wings and the main body form a marine cell for providing electric energy to a system; a propeller is arranged at the rear part of the main body to provide a propelling force to the search and rescue device; a storage space in the front part of the main body is used for high-calorie dried foods and fresh water to be placed; life-saving supplies are stored in a storage space in the rear part of the main body and storage spaces in the two wings; a sonar detector is arranged above the main body and used for detecting survivors of surrounding waters; a GPS module is also arranged in the main body to provide positioning information to a control console; and a warning lamp is arranged at the middle part of the main body. When the sonar detector detects survivors, the life-saving supplies are ejected out through ejectors on the two wings, a front cover at the front part of the main body is opened, the warning lamp is also turned on. The maritime search and rescue device disclosed by the invention has the advantages of small volume, convenient transportation and convenient use and can be directly launched to marine peril areas for working by using an unmanned aerial vehicle.

The invention discloses a vehicle-mounted unmanned aerial vehicle fire rescue system. The system comprises a multi-rotor load unmanned aerial vehicle and a rescue cabin, the multi-rotor load unmannedaerial vehicle comprises a flight unit, an image vision unit and a data transmission unit, and the rescue cabin is arranged below the multi-rotor load unmanned aerial vehicle. One end of the rescue cabin is provided with a rescue entrance, the rescue entrance is provided with a retractable rescue bridge, and the bottom of the rescue cabin is further provided with a rescue exit which communicates with the interior of the rescue cabin and can be opened and closed. The vehicle-mounted unmanned aerial vehicle fire rescue system can be used for high-altitude fire rescue, the rescue time of firefighters and the route planning time can be shortened by adopting the unmanned aerial vehicle rescue system, the time for the firefighters to rescue trapped persons can be greatly shortened, the danger that the firefighters die during search and rescue is avoided, and meanwhile, the probability of successful rescue of the trapped persons is improved.

One or more embodiments of the invention provide a search theory-based search and rescue resource scheme generation method and related equipment. The search theory-based search and rescue resource scheme generation method comprises the steps: obtaining accident information and search and rescue capability information of search and rescue resources; determining a search area and a discovery probability of search and rescue resources so as to determine a search success rate; determining a comprehensive score of search and rescue resources according to the search and rescue capability informationso as to determine a robustness score; determining a solution set based on a multi-objective decision analysis algorithm, determining an optimal solution set according to the search success rate andthe robustness score, and generating and outputting an optimal solution scheme. One or more embodiments of the method disclosed in the present specification are based on accident information and available search and rescue resource information; by determining the search success rate and the robustness score of the search and rescue resources and analyzing and solving the search success rate and the robustness score, a reasonable search and rescue resource scheme is given to assist a decision maker in making a scientific decision, so that a task allocation scheme for the search and rescue resources can be efficiently completed, the search and rescue time is saved, and the search and rescue efficiency is improved.

The invention relates to a life jacket with alarming and positioning functions. The life jacket comprises a jacket body, a connecting cover, a mounting plate, a positioner, an expansion assembly, rearshoulder straps and a power supply. A mounting groove for mounting the mounting plate is formed in the connecting cover; the positioner is electrically connected with the power supply, and the positioner and the power supply are both arranged on the mounting plate; the mounting plate is provided with an inflating disc capable of releasing gas when being impacted; and an air outlet end of the inflating disc is communicated with a first mounting cover and a third mounting cover. The expansion assembly comprises the first mounting cover, a first expansion air bag, a second mounting cover, the third mounting cover and a second expansion air bag. The first mounting cover and the second mounting cover are connected to form a cover body; the cover body is filled with the first expansion air bag;the rear shoulder straps are connected to the shoulders of the jacket body and provided with warning lamps electrically connected with the power supply. The personnel can trigger the inflation disc to inflate by patting the life jacket so as to provide buoyancy; the warning effect of the warning lamp is better, and the life jacket has a positioning function and facilitates accurate search and rescue of the search and rescue personnel.

The invention discloses a tourism safety management system. The tourism safety management system comprises a power supply system, a server side, a tourist side and a charging system; the server side is provided with a storage, a processor, a wireless transmitter and a wireless receiver; the storage and the processor can process a lot of requirements at the tourist side; due to the wireless transmitter and the wireless receiver, the communication range can be enlarged; and the communication efficiency can be increased. According to the tourism safety management system disclosed by the invention, the tourist side comprises a rescue system, a GPS positioning navigation system and a wireless transceiving system; when a tourist encounters danger, a rescue signal and a position are sent; a manager can rapidly know the position, where the tourist encounters danger, and determine how to take a rescue measure; therefore, the searching and rescuing time is reduced; the efficiency is increased; and thus, safety of tourists can be ensured effectively.

The invention discloses a mine search and rescue system and method based on visible light communication. According to the mine search and rescue system and method based on the visible light communication, the brightness of the surrounding environment of intelligent equipment is constantly detected by a photosensitive sensor, a light intensity information value in the surrounding environment of theintelligent equipment is judged, the intelligent device is enabled to reach the position where light is strong, the intelligent equipment is enabled to go forward in the direction of the strongest light all the time, and finally an exit is found; intelligent search and rescue can be carried out so as to shorten search and rescue time and improve search and rescue accuracy, wireless communicationis adopted for information transmission, and information detected by each component is transmitted to receiving equipment of searching and rescuing personnel through wireless communication, therefore,the remote wireless transmission control function is realized, and the human search for survivors in a rescue site can be replaced.

The invention discloses an intelligent search method and system which are used for improving the rescue success rate. The method comprises the following steps: acquiring a consumption record of a target lost person, wherein the consumption record comprises a first shopping record of the target lost person at a departure place and a second shopping record of the target lost person within a preset time before the target lost person is hiking; obtaining a departure place image set of the target lost person through the first shopping record, wherein the departure place image set is a shot image of the target lost person at a departure place; determining a target clothing image set of the target lost person according to the first shopping record, the second shopping record and the departure place image set; obtaining shoe images in the target clothing image set; determining a shoe style of the target lost person according to the shoe image; obtaining shoeprint characteristics of the shoe style from a database; and determining the target clothing image set and the shoeprint features as search and rescue features.

The invention discloses an intelligent evacuation indication system with a positioning function. The system comprises a controller module, wherein an input end of the controller module is bidirectionally and electrically connected with a comprehensive detection unit, and the comprehensive detection unit comprises an oxygen detection module, a smoke alarm module, a visibility detection module, a temperature detection module and a harmful gas detection module. According to the system, the controller module, the comprehensive detection unit, the oxygen detection module, the smoke alarm module, the harmful gas detection module, the main line power supply module, the emergency communication module, the wireless transceiver module, the wireless positioning module, the fire protection module, the wireless communication module, the terminal processing module and the central monitoring display module are cooperatively used; the system is high in intelligent degree, facilitates remote voice communication and monitoring with trapped persons, can indicate escape routes for the trapped persons in time, facilitates rapid positioning of persons difficult to evacuate, and greatly saves search and rescue time.

The invention discloses a BeiDou locating field searchlight. The BeiDou locating field searchlight comprises a shell body, a lampshade, a compass, a bulb, a BDS receiver, a BDS antenna, a battery and a rear cover, wherein the shell body is provided with a front cavity and a rear cavity; the lampshade, the compass and the bulb are installed in the front cavity; the BDS receiver, the BDS antenna and the battery are installed in the rear cavity; the light spreading paths in the lampshade include a vertical path and a horizontal path, a plane mirror is installed in the included angle between the two paths, the compass is installed below the vertical path, and the bulb is located below the compass; the light emitted by the bulb penetrates through the compass, illuminates on the plane mirror, is reflected to pass through the horizontal path and then illuminates outside the searchlight, and the projection of the compass is in the light of the searchlight all the time; the BDS receiver works out position information and feeds the position information back to the background in real time through the BDS antenna; and the rear cover is filled with tritium gas and fluorescence mixture and shines all the time so that a search and rescue team can find field workers as soon as possible in an accident.

The invention belongs to the technical field of fire fighting equipment, particularly to a wireless signal receiving circuit capable of judging positions and directions of firemen. The wireless signal receiving circuit comprises antennae, transistors, resistances, a filter, a single chip machine and an integrated receiver. Base electrodes of the first transistor and the second transistor are respectively connected with the first antenna and the second antenna, and collectors thereof are respectively connected with the filter. An output line of the third transistor is connected with a channel of the first transistor and the first antenna, an output line of the fourth transistor is connected with a channel of the second transistor and the second antenna, and input lines of the third transistor and the fourth transistor are respectively connected with the single chip machine. One end of the integrated receiver is connected with the filter, and the other end thereof is connected with the single chip machine. One end of the fifth transistor is connected with the single chip machine, and the other end thereof is connected with the second resistance. The first resistance and the second resistance are connected with emitting electrodes of the first transistor and the second transistor in parallel.

The invention discloses a rapidly positioned agricultural unmanned aerial vehicle. Propellers are arranged on wings, and wing connecting rings are sequentially connected to the bottom ends of the wings in the circumferential direction. Hollow supporting feet are installed at the bottom of a pesticide pot in a communicating mode, the tail ends of the supporting feet are horizontally arranged, spraynozzles are installed at the tail ends of the supporting feet, and high-pressure nozzles are arranged at the positions, located in the centers of the supporting feet, of the bottom end of the pesticide pot. A pesticide channel is formed inside the wings, the pesticide channel separately communicates with the hollow wing connecting rings and the medicine pot, and a plurality of pesticide through holes are formed in the walls of the wing connecting rings. A valve is arranged at the joint of the pesticide pot with the pesticide channel, the supporting feet and the high-pressure nozzles, and a remote controller of the aircraft is remotely connected with the valve to control opening or closing. Annular position lamps are arranged on the wall of the pesticide pot in the circumferential direction, and the position lamps are electrically connected with a power supply photovoltaic panel. A storage cavity is formed in the top end of the pesticide pot, and the storage cavity is filled with a signal bomb or a smoke bomb. The rapidly positioned agricultural unmanned aerial vehicle has a simple structure, convenient use, a wider spraying range, uniform pesticide dosage and a better fertilization effect.