354results about How to "Increase chance of escape" patented technology

The invention relates to a fire rescue method utilizing indoor wireless positioning technology. When a fire breaks out, every person in trouble utilizes a smartphone in hand or a prepared mobile terminal which is stored in a office to communicate with a wireless communication base station which is installed in a building, a physical position of the smartphone or the mobile terminal is determined through both-way communication between the smartphone or the mobile terminal and the wireless communication base station, position information and identification information of the smartphone or the mobile terminal are received through the wireless communication base station and sent to a monitoring host, the monitoring host utilizes the wireless communication base station to collect location information of firefighters, and meanwhile collects information of all smoke sensors and fire door sensors, and all the smoke sensors and all the door sensors are arranged in the building and send related information to people in trouble and rescue personnel. The fire rescue method utilizing indoor wireless positioning technology has the advantages that the people in trouble and firefighters are informed of the scene of the fire in a two-way transparent mode, and success rate of fire rescue and escape rate of persons in trouble are improved to a great degree.

The invention relates to a low-heat low-smoke flame retardant and application thereof in preparing a flame-retardant master batch. The low-heat low-smoke flame retardant comprises the following components in percentage by weight: 40-70% of hypophosphite, 20-50% of melamine compound, 0.1-10% of nano inorganic substance and 5-15% of assistant. The low-heat low-smoke flame retardant can be used for preparing a flame-retardant master batch. Compared with the prior art, the invention can effectively reduce the heat release rate, smoke release rate and total smoke generation quantity, thereby performing active functions of postponing the propagation of flame, reducing the rate of burning released substances and increasing the escape probability.

The invention provides a high-altitude falling and drowning safety guaranteeing system for an automobile and a control method thereof, which belongs to the technical field of automobiles. A problem of the prior art that the safety is not high is solved. The high-altitude falling and drowning safety guaranteeing system for the automobile comprises a control unit, an immersion sensor, a weightlessness signal sensor, a door lock controller, an automobile window controller and an engine controller, wherein the immersion sensor and the weightlessness signal sensor are connected with an input end of the control unit; and the door lock controller, the automobile window controller and the engine controller are connected with an output end of the control unit. The high-altitude falling and drowning safety guaranteeing control method for the automobile comprises the following steps of exerting the control unit to receive signals transmitted by the weightlessness signal sensor and the immersion sensor and to analyze and judge the received signals; and exerting the control unit to send a control signal to control automobile window closing, automobile door unlocking and engine fuel cutoff when a high-altitude falling accident or a drowning accident is judged. The high-altitude falling and drowning safety guaranteeing system for the automobile and the control method thereof, provided by the invention, is advantaged in that safety measures such as automobile door unlocking, fuel cutoff and so on are automatically executed for passengers on the automobile to escape in case of high-altitude falling and drowning.

The invention discloses a building locating system with an emergency evacuation function. The system comprises a server, a remote control terminal, and a plurality of infrared video cameras arranged on the interior wall. The server comprises a signal receiving module, a face recognition module, a storage module, a control module, and a wireless communication module. A plurality of temperature sensors and a plurality of smoke sensors are arranged on the interior wall. The system can effectively guide indoor personnel to evacuate and escape through the best route in the case of fire, avoid confusion, and effectively improve the escape probability of people in the case of fire.

The invention provides an intelligent escape method and an escape system based on a mobile phone. The escape method comprises the following steps: a user can acquire an indoor map and escape exit place information of a public place through the mobile phone when entering the public place; the user can open the indoor map for positioning and send positioning information to a server when a disaster takes place; the server can send an optimal escape route to the mobile phone of the user according to the position in which the user is positioned and pedestrian volume information of the escape exits. The intelligent escape method provided by the invention combines the manners of the public place indoor map and indoor positioning to provide the optimal escape route for persons in distress when the disaster takes place and improve the escape probability of the persons in distress when the disaster takes place.

The invention discloses an automatic window blasting system and a vehicle with the automatic window blasting system. The automatic window blasting system comprises a detection unit, a control unit and an execution unit, wherein the detection unit, the control unit and the execution unit are electrically connected; the detection unit comprises an acceleration sensor, a smoke and temperature sensing fire disaster sensor and a water sensor, and the acceleration sensor, the smoke and temperature sensing fire disaster sensor and the water sensor are electrically connected with the control unit; the control unit comprises an algorithm control and drive circuit used for processing data sent from the detection unit and judging whether a blasting condition is met; the execution unit comprises a safety airbag controller and an electric blasting window breaker electrically with the safety airbag controller; the safety airbag controller sends a current signal to control work of the electric blasting window breaker according to the information received from the control unit and used for judging whether the blasting condition is met. According to the system and the vehicle, automatic window breaking can be achieved under emergency circumstances such as collision, fire disasters and flood disasters, and escape opportunities of driving and riding staff are increased under the emergency circumstances.

The invention provides a system and method for generating an urgent danger prevention dynamic route. The system can be used for updating various environment parameters and integrity parameters of various infrastructures collected by sensors in real time as per the environmental change, so as to generate a novel optimal danger prevention route, as a result, refuge personnel can escape and avoid danger as per the real-time safety route indication, the escaping probability of refuge personnel is increased to the maximum extent, and casualties can be reduced.

The invention discloses a manufacturing method of a light emitting diode chip, comprising the following steps of: scribing a GaN semiconductor epitaxial layer by laser to form a scribing channel; eroding the scribing channel by using mixed liquid of phosphoric acid and sulphuric acid to eliminate scribing products; eroding N type GaN eroding layers at both sides of the scribing channel to form a side wall; and forming a slope angle which is larger than 0 degree and less than 90 degrees between the side wall and a sapphire substrate, thereby changing a light propagation distance, increasing the escape probability of photons from the chip, improving the light-emitting efficiency of the LED chip, and increasing the illumination of the LED chip by over 10 percent.

The embodiment of the invention discloses an escape method for an indoor place and a user terminal. The method can comprise the steps that when the user terminal detects an escape request, the user terminal sends the escape request to a server corresponding to the indoor place, so that the server acquires a current position of the user terminal, and the server is enabled to generate an escape route according to the current position of the user terminal, an exit position of the indoor place and gas concentrations of various positions in the indoor place; the user terminal receives the escape route sent by the server; the user terminal maps the escape route to an indoor map corresponding to the indoor place. By adopting the escape method for the indoor place and the user terminal, when situations such as fire or gas leakage occur in the indoor place, the user terminal can provide the escape route for a user, thus improving escape convenience, and escape probability and efficiency of the user.

The invention provides a nuclear emergency system of a nuclear power plant, and belongs to the technical field of nuclear power plant emergency planning and preparing. The system comprises portable individual emergency devices, a fixed nuclear radiation monitoring device, an emergency refuge and a control center. The portable individual emergency device and the fixed nuclear radiation monitoring device can position and measure current radiation data and send the data to the control center. The control center judges whether leakage happens or not, confirms the accident location and radiation range, and plans the retreating and emergency refuge route according to positions of all workers through summarization and analysis, and sends the information to the corresponding portable individual emergency devices to be displayed on a map through display modules, and safe retreating of the workers is ensured. The system is simple in structure, complete in function, rapid, efficient and high in safety coefficient, greatly improves nuclear emergency reaction capacity and increases the survival rate of the workers on site, and meanwhile can be used as a nuclear emergency command system of the nuclear power plant.

The invention discloses an automatic window detonating system and method and a vehicle with the system. The system comprises a window breaking control unit, an engine control unit and a braking control unit which are connected through a vehicle-mounted network. The window breaking control unit comprises a detection unit and a controller. The engine control unit comprises a speed measuring device and a braking device. The controller is used for processing data transmitted by the detection unit, judging whether the data conform to detonating conditions and sending a judgment result to a glass breaker control unit. The speed measuring device is used for detecting the vehicle speed when the controller judges that a window needs to be detonated, if the detected vehicle speed is larger than a certain specific value, the braking device of the engine control unit is started to reduce the vehicle speed, and the controller can send a detonation instruction to the glass breaker control unit until the vehicle speed detected by the speed measuring device is smaller than the specific value. The functions of a passive safety system of the vehicle can be improved, and the window can be automatically detonated at the low vehicle speed in emergencies.

The invention discloses a pre-install auto-glass safety hammer, comprising an elastic bowl body stuck on the automobile glass, a metal hammer body and an impact cover; wherein the elastic bowl body is preinstalled on the automobile glass; the frontal end of the metal hammer body is sharp and fixedly arranged in the elastic bowl body close to the automobile glass; and the flat surface at the back of the metal hammer body is fixedly arranged on the impact cover on the bowl body. The auto-glass safety hammer is not easy to be lost by being preinstalled on the automobile glass, and can increase the chances of avoiding to the most extent once an unexpected incident happens. The sharp shape at the frontal end of the metal hammer body leads to stress concentration; while the flat surface at the back of the metal hammer body facilitates to boxing or slapping; and due to the striking impact cover, passengers are easy to discover the incident and escape by breaking the automobile glass. The elastic bowl body fixed by the metal hammer body provides elastic restoring force, which ensures repeated impact until the breaking of automobile glass. The auto-glass safety hammer also has the advantages of low material consumption, low production cost and convenient use.

The invention discloses acousto-optic synchronous wireless fire safety evacuation equipment. The equipment at least comprises a plurality of single machines which are wirelessly networked with a central control device, wherein each single machine is in signal connection with a temperature detection device and a smoke detection device respectively; the single machine at least comprises a network wireless transmitting and receiving module, a program control board and a laser generation and control device; the laser generation and control device is used for providing a laser guide pattern and at least comprises a laser generator and a lens which is driven by a step motor; a replaceable pattern card is arranged between the laser generator and the lens; and the single machine also comprises an audio play device. The acousto-optic synchronous wireless fire safety evacuation equipment of the invention realizes intelligent system linkage and active indication, greatly improves the safety standard, reduces the possibility of casualties, has high industrial generalization capacity and has the advantages of many nodes, flexible allocation, high adaptability and high reliability.

The invention features a stacking structure on a baseboard of N type contact layer made of GaN material. It includes: a barrier layer stacked on the N type contact layer, in which an Alj-x GaxInyN layer, a SiN layer and another Alj-x GaxInyN layer are stacked in turn; a luminous layer that is an Alj-x GaxInyN layer formed on the barrier layer; another barrier layer; a SiN layer; an Alj-x GaxInyN layer; a P type contact layer located on top layer of barrier layer and made of Mg-doped P type GaN material; and a ohmic contact P type electrode layer is formed on its top; an ohmic contact N type electrode layer is formed at one side of N type contact layer above.

The invention discloses an escape sliding cable between floors, and belongs to the technical field of fire-disaster-prevention and accident-prevention rescuing devices and equipment. The escape sliding cable between the floors is composed of a nut, a screw rod, an expansion solid cylinder, an expansion cylinder wall, an expansion cylinder wall crack, a wire end ring, a cable end ring, a sliding cable, floors, floor top protrusions, a cable end solid wire and sliding cable fixing points. The escape sliding cable between the floors is characterized in that the sliding cable fixing points are a structure formed when the sliding cable is fixed to the floor protrusions, the heights of the sliding cable fixing points are different on two adjacent floors, at least two floor top protrusions are formed on each floor, the floor top protrusions are connected with the floor top protrusions at the opposite floor through the sliding cables, each sliding cable is installed in an inclined mode, namely, one end of each sliding cable is high and the other end of the corresponding sliding cable is low, so that a height difference of 2-3 meters is formed between the two sliding cable fixing points of each sliding cable, the persons in distress can reach the top of the other floor successfully, large damage is not caused, and the problem that injuries and death of the people are caused when the disaster occurs is avoided. The escape sliding cable between the floors is simple to manufacture, strong in operability, low in cost and significant in effect.

The invention relates to a nuclear reactor earthquake protection warning system and a monitoring control method. The system comprises intelligent sensor modules and a main control unit, and is connected into a data communication network by a twisted pair. The intelligent sensor modules comprise triaxial acceleration sensors which are connected in sequence, an A / D (analog / digital) converter, a single-chip processor, a communication chip and a communication interface. The main control unit comprises a main control module and a display, audible-visual annunciator, a keyboard, a nuclear reactor emergency shut down switch circuit and a communication interface circuit connected with the main control module. The installation and control method of the system comprises the following steps of: (A) embedding a plurality of intelligent sensor modules according to the theory of distributed network topology and the principle of making every effort to obtain the maximum monitoring area; (B) inputting control parameters into a main control module of the nuclear reactor earthquake protection warning system; (C) comparing signals collected by the intelligent sensor modules with the control parameters in the main control unit; and (D) judging whether to automatically stop the working of a nuclear reactor in earthquakes and strong shocks, instruct working personnel to escape, and the like.

An automobile accident safety popup escape compartment comprises a compartment body, safety seats, collision sensors and a catapulting system. The escape compartment is located in part of an annular region above wheel bases in an initial state and located above the rear position of an automobile body in a finial state. The safety seats are located in the compartment body. The catapulting system comprises a catapulting controller, catapulting devices used for separating he compartment body from the automobile body and a catapulting alarm system used for sending out an alarm. A collision strength threshold value of the collision sensors is set in the collision sensors in advance, when the detected collision strength is larger than or equal to the set collision strength threshold value, catapulting signals are transmitted to the catapulting controller, and the catapulting controller triggers the catapulting devices and the catapulting alarm system by receiving the catapulting signals of the collision sensors. The automobile accident safety popup escape compartment suitable for all passengers in an automobile, accurate in triggering time control, convenient to maintain and good in safety is provided.

The invention provides an intelligent travelling escape trunk for a mine, comprising a sealed shell, both sides of the shell are provided with a sealed trunk door and an observation window for escaping people to enter or leave, the shell is provided with staying space for escaping people and is provided with a high-pressure water storage system, a high-pressure air storage system and an electric power reserve system, and the shell is also provided with a control center. When mine disasters come, the intelligent travelling escape trunk of the invention enables people not capable of lifting shaft in time to escape and survive, and can build communication with a ground control center by the control center. In the invention, an active measure also can be adopted to cause the escape trunk to travel; once the escape trunk meets an obstacle, a shield tunneling head can help people to run while tunneling, a detecting instrument is adopted to detect ambient environment, and a travelling robot carries out remote and full-angle detection, so that escape process is safer to help people to avoid risks in advance and win the maximum escaping chance.

The invention discloses an elevating strong wind fire-extinguishing firefighting device which comprises a traveling device, a secondary frame, a turntable, a cantilever crane, as well as a pumping device, a pipeline system, one or more tanks for bearing fire extinguishing agents and a control system all arranged on the secondary frame, wherein the traveling device is provided with a power system for supplying power to outside; the secondary frame is arranged on the traveling device; the turntable is connected with the secondary frame through a rotating mechanism; one end of the cantilever crane is hinged to the turntable; a fire-extinguishing smoke discharge device is mounted at the top end of the cantilever crane; the fire-extinguishing smoke discharge device can rotate, pitch and lift along with the cantilever crane and the turntable. According to the device, smoke in the middle-high building fire scene can be discharged, the fire site visibility and fire-extinguishing agent jet distance and area can be improved, the environment temperature of the fire site can be reduced, a point-to-space submerged fire-extinguishing mode can be realized, the escape rate of trapped persons is increased, the personal safety of rescue workers is guaranteed, and the device has obvious practical value.

The invention discloses an emergency lighting and evacuation indication detection system and method. The system comprises a centralized power supply, a general controller, a number of sub-controllers,fire emergency lamps connected with each sub-controller, a fire alarm, a fire detector, a position sensor, a display screen, an alarm device, a voice broadcaster, a data storage device and a communication unit. The centralized power supply is electrically connected with the general controller, each sub-controller, each fire emergency lamp, the fire alarm, the fire detector, the position sensor, the display screen, the alarm device, the voice broadcaster, the data storage device and the communication unit. The general controller is electrically connected with each sub-controller, each fire emergency lamp, the fire alarm, the fire detector, the position sensor, the display screen, the alarm device, the voice broadcaster, the data storage device and the communication unit. According to the invention, the service life of the fire emergency lamp can be prolonged; the overhaul efficiency and the escape probability are improved; and the escape time is shortened.

The invention discloses a horizontally-moving folding-type flexible slide way device for high-rise fire-fighting escape, and relates to the technical field of fire-fighting escape equipment. The horizontally-moving folding-type flexible slide way device comprises an automatic folding / unfolding structural frame which is fixed on building steps and arranged along an inner-ring handrail of a building handrail. An installing and distributing assembly is arranged on the automatic folding / unfolding structural frame and provided with a handrail pipe assembly. A transmission mechanism is arranged on each platform between adjacent floors of the building steps and connected with the automatic folding / unfolding structural frame. The horizontally-moving folding-type flexible slide way device is efficient, fast and safe escape equipment used in a fire in a high-rise building, and meanwhile, relevant auxiliary rescue forms are also taken into comprehensive consideration. When the horizontally-moving folding-type flexible slide way device is in operation, all the escape equipment in the whole building can be started in place within10 seconds; within 30 minutes, the number of escapers can reach nearly 800, the situation that the escape is delayed due to congestion and other reasons when the fire comes can be relieved in first time, and most of the escapers can quickly escape from a fire scene.

The invention discloses a self-locking and lever principle-based vehicle electrical control / manual double-purpose safety hammer, which belongs to the technical field of an automobile safety device. The self-locking and lever principle-based vehicle electrical control / manual double-purpose safety hammer is characterized in that: the hammer head is a conical hammer head of which the bottom surface is in contact with a compression spring; the hammer head is arranged in a circular guide cavity; a self-locking component force device is arranged on a mounting bracket of the shell through a pin shaft; a short arm end is in contact with a conical surface of the hammer head, and a long arm end is in contact with an electromagnetic iron core; a pull ring is arranged at the lower end of the self-locking component force device; a one-key type centralized control safety hammer parallel electrical control network can be constructed; after a starting switch is started or the pull ring is manually pulled, the self-locking component force device is unlocked and the hammer head bounces out along the circular guide cavity to smash glass; and under the condition that a safety cover is damaged in a mistaking way, an alarm switch is closed, and a buzzer sends an alarm. The self-locking and lever principle-based vehicle electrical control / manual double-purpose safety hammer has the effects and benefits of electrical control and manual operation, high reliability, capability of automatically smashing glass, convenience for passengers to escape, integrated shell, simple structure, easiness for batch production and capability of being applied to school buses, buses, sightseeing buses, trains and the like.

The invention relates to the technical field of vehicle emergency escape, and aims at providing a novel vehicle emergency escape window which is high in safety performance, simple in structure and convenient to be transformed and installed. According to the technical scheme, the novel vehicle emergency escape window with high safety performance comprises a car window, the bottom of which is hinged with the car body, wherein the top surface, facing inward, of the car window is provided with a locking mechanism; the car window includes a window frame and two layers of window bodies arranged inside the window frame, and meanwhile, one of the two layers of the window bodies serves as a fixed window body fixed with the window frame, and the other one serves as a mobile window body capable of sliding in an altitude direction of the window frame. The novel vehicle emergency escape window with high safety performance has the advantages of better saving time and labor, increasing the escape probability of escapers, reducing injuries and deaths of accidents, decreasing escapers' risks of suffering from a secondary damage, and being simple in structure, low in costs, and convenient for promotion and popularization.

The invention relates to a structured arrangement manometer coarsened sapphire substrate and a preparation method. The sapphire substrate is provided with composite patterns formed by combining micron order patterns and nanometer order patterns, the nanometer order patterns are distributed on the micron order patterns, and the nanometer order patterns are distributed on the radiuses or the connecting lines of the gravity centers and the corners of the upper surfaces of the micron order patterns. The central points of the lower surfaces of the nanometer order patterns coincide with the central points of the radiuses or the centers of the connecting lines of the gravity centers and the corners of the upper surfaces of the micron order patterns. The nanometer order patterns on each micron order pattern are distributed symmetrically. The method comprises the steps that firstly, the micron order patterns are prepared on the sapphire substrate, and then the nanometer order patterns are prepared on the micron order patterns. By means of the structured arrangement manometer coarsened sapphire substrate and the preparation method, the propagation direction of light can be effectively changed, the probability of light overflow is increased, a light path can be effectively emitted out, the reflection of the patterns to light is enhanced, so that the propagation direction of the light is changed, and the light extraction efficiency and the light output power of a GaN-based LED with the sapphire substrate are improved.

The invention provides a nanometer / micrometer composite graphical sapphire substrate and a preparation method thereof. The sapphire substrate has a composite pattern which is obtained through compositing a nanometer-scale pattern and a micrometer-scale pattern. The preparation method comprises the steps of preparing the micrometer-scale pattern on the sapphire substrate; depositing a nickel film on the micrometer-scale pattern; aggregating the nickel film for obtaining a large number of nickel nanometer particles; transferring the pattern of the nickel nanometer particles to the sapphire substrate according to dry-method etching through using the nickel nanometer particles as a mask, and forming a nanometer pattern on the micrometer-scale pattern of the sapphire substrate; eliminating nickel nanometer particle corrosion; and cleaning the substrate for finally obtaining the sapphire substrate with the nanometer / micrometer composite pattern. The nanometer / micrometer composite graphical sapphire substrate and the preparation method thereof have advantages of performing nanometer coarsening on the micrometer-scale pattern, improving epitaxial lateral growth, further improving crystal quality of the epitaxial film, more effectively changing light propagation direction, increasing light outlet probability, and improving internal quantum efficiency and light extraction efficiency of GaN-base LED of the sapphire substrate.

A platinum-silicon nanowire infrared detector comprises a P-type epitaxial silicon substrate layer, a platinum-silicon film photo-sensitive layer, a P-type polycrystalline silicon cap layer and an antireflection film layer. The P-type epitaxial silicon substrate layer, the platinum-silicon film photo-sensitive layer, the P-type polycrystalline silicon cap layer and the antireflection film layer are sequentially overlapped. The platinum-silicon film photo-sensitive layer is a platinum-silicon nanowire, and the platinum-silicon nanowire infrared detector works in a front illumination mode. The platinum-silicon nanowire infrared detector has the advantages that absorptive rate can be increased through the platinum-silicon nanowire, a huge fringing field exists at the top end of the platinum-silicon nanowire to generate an avalanche multiplication effect, and the quantum efficiency of the platinum-silicon nanowire infrared detector is substantially improved; through the P-type polycrystalline silicon cap layer, the escape probability of photoproduction hot holes can be doubled, exchange of movable electric charges and photoproduction free electrons in the antireflection film layer is prevented, noise and dark currents of the platinum-silicon nanowire infrared detector are reduced, the front illumination mode is adopted in the detector, the packaging technology is substantially simplified, and reliability of the detector is improved.

The invention discloses a safety monitoring system used for the mining industry. The safety monitoring system comprises a methane concentration sensor, a dust concentration sensor, an oxygen concentration sensor, a carbon monoxide concentration sensor, a hydrogen sulfide concentration sensor, an image sensor, a central processing unit, a wireless communication module and an alarming system, wherein the methane concentration sensor, the dust concentration sensor, the oxygen concentration sensor, the carbon monoxide concentration sensor, the hydrogen sulfide concentration sensor and the image sensor are all electrically connected with a data acquisition module; the central processing unit is electrically connected with a remote monitoring terminal and a wireless service terminal respectively through the wireless communication module; the central processing device is electrically connected with the alarming system through a safety crisis grading module. Crisis signals of accidents are sent to mobile phones of workers in time according to different alarm grades, so that the workers can learn about crisis information in detail and make optimal choices, and the flexibility of the monitoring system is improved.

The invention relates to a method for improving a high-rise building safe evacuation scissors staircase and a structure thereof. The invention is characterized in that one section of any two-section straight run staircases of existing scissors staircases is selected, internally folded and connected to a corresponding floor, and the folding positions of the two staircases are all designed to be rest platforms. The invention reduces the stair well face widths of the staggered staircases of the existing high-rise buildings, completely uses space heights among floors, effectively reduces the space area of public stair wells, reduces the face width of the stair wells without reducing the bearing capacity of the floor, reduces unnecessarily wasted land area, and reduces the construction cost of the high-rise building safe evacuation scissors staircases. For the invention, distance between two end openings of each floor is shorter, when fire incidents occur, persons in the building can arrive at the other end opening from one end opening in shorter time, thereby increasing valuable evacuation escaping time, enhancing the escaping opportunity of the persons on the floors, and providing better security guarantee.

This invention relates to semi-conductor material technique used in transparent negative electron affinity gallium arsenide light negative electrode device. This invention source area has two layers of inner layer and surface layer, wherein the inner layer has a window layer outside ad the outside of the surface layer is Se or oxygen actuating layer. The source inner layer is mixed with 1í½8í‡10#+[18]cm#+[-3] in middle concentration and the surface layer is mixed with 5í‡10#+[16]í½1í‡10#+[17]cm#+[-3] in low concentration.

The invention provides a reciprocating type lifesaving apparatus that can be used movably, which comprises a bodywork and a rope; a damping machine, an adjustable electric energy receiving and reforming unit and an electrical cabinet are arranged in the bodywork; the adjustable electric energy receiving and reforming unit is connected with a speed governing knob at the electrical cabinet; the damping machine is connected with the adjustable electric energy receiving and reforming unit; the damping machine consists of a stator, a rotor and a rope roll; the rope roll is connected with the rotor by the rope. The apparatus of the invention is equipped with a wheel, so to the apparatus can move flexibly and conveniently, and can be pushed rapidly to a suitable position to use in an emergency; different falling speeds of the invention can be selected according to different crowds and the number of the escaping people, thereby reducing a mental pressure of the escaping people in the emergency and helping the people to escape from a danger zone safely; the apparatus of the invention can also be hovered arbitrarily when in use, so as to help the escaping people on different floors to escape successfully.