369 results about "Fall accident" patented technology

Fall-sensing systems are provided which do not generate false alarms for a non-falling event. Inventive fall-sensing systems may be magnetometer-free. Thin-profile (less than ½ inch, pre-inflation) wearable systems are provided. By removing the problem of false alarms and by slimming the pre-inflation profile, a practically useable wearable protection solution may be provided for an individual prone to falling. The number and severity of hip fractures in the elderly may be reduction. The inventive product actively assesses fall accidents and triggers an inflatable airbag protection device. The problem of non-compliance in wearing hip protectors that has previously limited the effectiveness of other hip protectors also has been solved.

The invention belongs to the technical field of glass curtain wall cleaning devices, particularly relates to a glass curtain wall cleaning device. The glass curtain wall cleaning device comprises a plurality of sucker components, a rack, a cleaning roll brush and a cleaning motor, wherein the sucker components and the rack are connected through a moving pair and a walking device; brushes are arranged on the periphery of the cleaning roll brush; the cleaning roll brush is connected with the rack through a rotating pair; an output shaft of the cleaning motor is connected with a shaft of the cleaning roll brush; each sucker component comprises a sucker, an adsorption piston rod, an adsorption piston cylinder and an adsorption piston; each adsorption piston rod and the corresponding adsorption piston are combined to form a whole body, and then are combined with the corresponding adsorption piston cylinder to form a corresponding adsorption air cylinder; the tail end of each adsorption piston rod is fixedly connected with the corresponding sucker; a hole is formed in the center of each sucker, extends to the back surface of the sucker and is an adsorption hole; and two connecting holes are formed in each adsorption piston cylinder, are a front cavity hole and a rear cavity hole respectively, and respectively communicate with a front cavity and a rear cavity of the corresponding adsorption air cylinder. By the glass curtain wall cleaning device, fall accidents of personnel are stopped, operation safety is improved greatly, and work limiting conditions are reduced.

The invention provides an early warning method and device for a high falling accident of a construction worker. The early warning method for the high fall accident of the construction worker comprisesthe following steps: establishing a data set, and respectively training a target detection network and a behavior detection network by adopting a transfer learning method; acquiring a monitoring video of a preset area, inputting the monitoring video into the trained target detection network, calibrating an operator, a safety helmet and a safety belt, and judging whether to output equipment abnormality alarm information or not according to the existence and wearing positions of the safety helmet and the safety belt; inputting a worker target color image detected by the target detection networkinto the trained behavior detection network; extracting a skeleton key point sequence of a worker, connecting joints, evaluating the correlation between skeleton key points, estimating the posture ofthe worker according to a preset worker action category and the unsafe posture of the corresponding worker, and giving an alarm when detecting that the behavior of the worker is abnormal.

The invention provides a monitoring device and a monitoring method for a mining FBG roof separation layer. The device comprises a vertical measurement barrel and a packaging casing, wherein fixed pulleys, tape pulleys and constant-strength cantilever beams are symmetrically arranged in the packaging casing; a steel wire rope penetrates through the tape pulleys and the fixed pulleys and penetrates out from a steel wire rope guide hole in the top part of the vertical measurement barrel; one end of the steel wire rope is connected with an anchor head; a shallow part measurement point and a deep part measurement point are distributed inside a drill hole; the anchor head is pushed to the measurement points in the drill hole; when the stress of the steel wire rope changes, the stress change is displayed through wavelength values of an FBG A and an FBG B; a wavelength demodulation device is used for demodulating the wavelength values into digital signals, the digital signals are sent to a computer for real-time processing, and a separation layer numerical value is combined for drawing a separation layer quantity changing curve and a set separation layer boundary value; whether the separation layer exists is judged; and the data change of the roof separation layer is monitored in real time. Temperature compensation is performed with a differential form, on-line measurement of the roof separation layer is realized, the reliability and the accuracy are high, an early warning signal can be issued, and roof fall accidents can be avoided.

The invention discloses a surrounding rock plastic zone size-based quantitative roadway support design method. The method comprises the following steps of: 1, carrying out calculation to determine a size of a radius R of a roadway surrounding rock plastic zone; 2, classifying roadway surrounding rocks according to the calculation result; 3, carrying out targeted support parameter design on different types of surrounding rocks according to the roadway surrounding rock classification result; and 4, modifying and adjusting support parameters according to on-site monitoring feedback information. According to the method, support parameters designed on the basis of plastic zone sizes are scientific and reasonable, and roadway surrounding rock classification is carried out by taking plastic zoneradius sizes as main indexes, so that targeted support parameter design is carried out on different types of surrounding rocks so as to ensure the scientificity and economy of roadway support design.For roadway support, the method is capable of playing a part of preventing roadways from roof fall accidents.

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 relates to a remote electronic monitoring device and is characterized in that the long-distance electronic monitoring device comprises a posture detection module which is used for detecting body posture information of a person; a physiological parameter detection module which is used for detecting pulse, blood pressure and body temperature of the person; a data storage module which is used for storing the physiological parameters fed back from the physiological parameter detection module and the body posture information; a main control module which judges whether the person falls according to the body posture information fed back from the posture detection module, gives emergency call information when judging that the person falls and transmits the physiological parameter fed back from the physiological parameter detection module to a monitoring center; and a communication module which sends the emergency call information and the physiological parameters to the monitoring center through a public wireless network. The device can automatically detect fall accidents of the seniors by the posture detection module and automatically give emergency call signals and inform the monitoring center of positions of the seniors, so that the seniors who fall down can get help in time. Besides, the device collects the physiological parameter information of a user and transmits the information to the monitoring center where the information is recorded in health records. The whole monitoring process does not need manual intervention or manual operation and is very convenient.

The invention discloses a very soft thick coal seam hold and full-mechanized top coal caving mining method and a top coal caving hydraulic support structure which is applicable to the process requirements of very soft coal seam hold and full-mechanized top coal caving, and the method can form the hold mining process features by using a roller of a coal mining machine to cut and load coal under a top beam of the support, realize the full-closed mining of a working face, and lead the beam end distance of the top beam (the distance between the front end of the top beam and the coal wall when using the coal mining machine to cut and mine) to be close to zero or be a negative value, and a coal shoveling plate is arranged at the front end of a shovel type telescopic beam, thereby being capable of shoveling off top coal under the situation that the coal wall spalling is insufficient, protecting an exposed top plate under the situation that the coal wall is sufficiently spalled and further avoiding the large-area roof-fall accidents, wherein the telescopic stroke of a jack of the telescopic beam is larger than a web of the coal mining machine. The method can realize the full-mechanized mining of a very soft coal seam and has the advantages of low cost, simple process, safety, high efficiency and the like.

The invention provides a falling accident detecting system based on dual technologies. The falling accident detecting system comprises a front end detecting system and a central processing system. The front end detecting system comprises two or more dual-technology detectors. Detection on human bodies in different space areas can be realized through arrangement of detector locations. The central processing system mixes and analyzes information according to information detected by the front end detecting system, judges various kinds of information that the human bodies pass through detecting areas, stay or fall down according to a falling accident judging method, and sends warning according to confirmed falling accidents. Low-cost dual-technology detectors are adopted, and the system has high precision on falling accident detection through reasonable arrangement. The falling accident detecting system has the advantages of non-intrusive detection, low production cost, low mistaken warning rate or false warning rate and the like, and is suitable for automatic detection of falling accidents of old people living alone and with home-based care.

The invention discloses a substation operation and maintenance personnel virtual operation training system, which comprises a virtual vision assembly, which is used for displaying power operation scene pictures to operators in real time; a fall virtual assembly, which is used for simulating the feeling of step-missed falling when an operator misses a step in a power operation scene; a body feeling glove assembly, which comprises a gesture recognition module and an electric shock simulation module, and is used for simulating electric shock accidents when the operator violates safety regulations; a head knock simulation assembly, which is used for simulating part falling accidents when the operator violates the safety regulations; and a virtual control system, which is in communication connection with the fall virtual assembly, the virtual vision assembly, the body feeling glove assembly and the head knock simulation assembly. The advantages are that by applying the augmented reality technology to training of substation operation and maintenance personnel, realness, practicality and effectiveness of the training are effectively improved, and the operators are allowed to understand composition and distribution of substations more effectively.

The invention relates to a three-dimensional parking device, in particular to a multilayered high-speed hydraulic three-dimensional parking device, comprising a stringer, a beam and an upright post which form a main body frame, and a horizontal support and a vertical support which form a cross sliding frame, wherein, the vertical support is connected with a vehicle carrying tray through a rope suspension device which comprises a rope which suspends the vehicle carrying tray and a plurality of pulleys; one end of the rope which suspends the vehicle carrying tray is fixedly connected to the cross sliding frame and passes through a primary movable pulley, a dead pulley and a secondary movable pulley in turn by means of winding, and the other end of the rope is fixedly connected to the vehicle carrying tray; the dead pulley is fixed on the cross sliding frame; and the primary pulley and the secondary pulley are arranged in parallel on a pulley yoke which is fixedly connected to a lifting rod of a hydraulic lifter. The multilayered high-speed hydraulic three-dimensional parking device can be used for three-dimensional parking devices with over three layers and is quick in operation speed and low in noise; moreover, that the lifting height is limited by operation dead points is improved, thereby the hidden danger for a roof fall accident is avoided.

The invention relates to safe and reliable type wind power generation equipment based on the Internet of Things. The safe and reliable type wind power generation equipment comprises a strut, a cabin,fan blades, a rotating shaft and a power generator, and further comprises a speed limiting mechanism and a rust protection mechanism; and the speed limiting mechanism comprises a roller, a friction wheel, a sliding unit and a friction unit, and the rust protection mechanism comprises a lifting assembly and a spraying assembly. According to the safe and reliable type wind power generation equipmentbased on the Internet of Things, the speed limiting mechanism can be used for automatic speed limiting on the rotating shaft 4, burning damage to the power generator 5 due to too high rotating speedis prevented, and the protection effect is achieved; the standby effect can be achieved during use in cooperation with an existing speed reducing device, and the duel protection effect is achieved; and by means of the rust protection mechanism, comprehensive rust protection liquid spraying can be carried out on the different heights of the strut 1, strut 1 load capacity reduction caused by corrosion of the strut 1 is prevented, breakage and falling accidents caused by corrosion of the strut 1 are avoided, and the practicability and security of the wind power generation equipment are greatly improved.

The invention discloses a screw type vertical elevator, and belongs to the field of transportation machines. The screw type vertical elevator comprises a shaftway, a car and a drive mechanism. The drive mechanism comprises a motor, a transmission rod and a plurality of screws. The multiple screws are vertically arranged around the car. Each screw is sleeved with a nut. Each nut is connected to the car through a first connecting piece. Each screw is provided with a second gear. A worm is arranged on an output shaft of the motor. A worm gear engaged with the worm is arranged at the upper end of the transmission rod. A first gear engaged with all the second gears is arranged at the lower end of the transmission rod. The screw type vertical elevator has the beneficial effects that the ascending and descending actions of the car are achieved through the screw transmission manner of the screws and the nuts, a certain self-locking function is achieved, labor is saved, and the falling accident can be prevented from happening to the car. By means of the design of the worm and the worm gear, the drive mechanism has the self-locking function, and controllability and safety of equipment are guaranteed. By means of the design of the second gears and the first gear, it can be guaranteed that the four screws rotate synchronously, and the car can ascend and descend more stably.

The invention discloses a landing door with an opening protecting function. The landing door is connected to an upper bank of the landing door through a door hanging panel, a landing door lock is arranged on the door hanging panel, a lock body and a rotating center are arranged on the landing door lock, and a primary unlocking device and an auxiliary unlocking device are arranged on the landing door; a landing door opening protective device comprises a sensor, a flexible locking device and a limiting device; the flexible locking device is arranged on the landing door hanging panel, and the limiting device is arranged on the upper bank of the landing door. The landing door disclosed by the invention has the advantages that the primary unlocking device and the auxiliary unlocking device can diversify the unlocking modes of the landing door lock; an inching switch and an indicating lamp are arranged to master whether the primary unlocking device unlocks the landing door lock smoothly or not; the sensor and the unlocking protective device are arranged to guarantee that a car is in the floor, so that a well-falling accident is avoided.

Disclosed are a wearable behavioral pattern collecting apparatus for generating collected information by analyzing a behavioral pattern of a wearer, and generating and thereby transmitting emergency call information when an emergency situation occurs, a network including a repeater to transmit information received from the behavioral pattern collecting apparatus to a remote monitoring server, and a behavioral pattern analyzing system and method for transmitting information on an emergency accident and a position of the wearer to a corresponding institution or a corresponding person in charge when an emergency situation such as a falling accident or the emergency accident occurs by observing a change in the behavioral pattern of the wearer.

The invention discloses a rope wheel with a self-locking device and relates to the technical field of brake or stop devices. The rope wheel with the self-locking device comprises a turning wheel, a steel rope and a supporting frame, wherein the self-locking device is also arranged on the supporting frame; the steel rope passes through the self-locking device; the self-locking device comprises a U-shaped fixing plate and a roller; a pair of long slotted holes is formed in the same positions of two side plates of the U-shaped fixing plate; wheel teeth are arranged on the roller; a wheel shaft is fixed on the axis of the roller; the two ends of the wheel shaft are in sliding fit with the pair of long slotted holes; the included angle between the length direction of the long slotted holes and the U-shaped groove bottom of the U-shaped fixing plate is an acute angle; the smallest gap between the wheel teeth of the roller and the U-shaped groove bottom is smaller than the diameter of the steel rope. The rope wheel with the self-locking device has the beneficial effects that when the roper wheel is used for vertically conveying tools and materials, the steel rope dropping downwards is locked, and the weight falling accident is prevented; in addition, the steel rope can be locked at any height, and the tools and the materials can be conveniently taken down by operators.

The invention discloses a falling-protection device. The falling-protection device comprises a shell formed by the connection of a mounting plate, a ratchet housing and an end cover, wherein ratchet teeth are arranged on the inner wall of the ratchet housing, a brake shaft is arranged inside the shell, one end of the brake shaft is provided with a loading shaft, one end of the loading shaft passes outside the shell, a slot is arranged on one side of the brake shaft along the radial direction, a pawl is arranged inside the slot, an inner end of the pawl is connected with the brake shaft by an elastic component, the outer end of the pawl is hinged with the brake shaft by an eccentric shaft, a high-speed rotation of the brake shaft can drive the inner end of the pawl to swing outwards, and the brake shaft and the ratchet teeth are matched so that the loading shaft and the ratchet housing are locked. The falling-protection device is simple in structure, small in volume, light in weight, stable in running and low in failure rate. When the falling-protection device normally runs at a lifting platform, execution components do not collide, so that the losses of the components are extremely low after the components are used for a long time, not only the running load of the lifting platform is not increased, but also an effective protection action can be applied once a falling accident happens.

The invention relates to research and design of a portable GSM&GPS fall detector. According to the invention, modules such as an ADXL345 three-axis acceleration sensor, a single-chip microcomputer and a GPS&GSM are combined together to realize detection of accidental fall and transmission of position information after the fall; and a complete fall detection algorithm is designed. The algorithm is executed according to four states in a fall accident, namely, a weightless state, collision with the ground, comparison of the state of the body of a user after collision with the state of the body before collision, and a motionless state.

Provided is a supporting method capable of preventing roof and wall falling accidents. By means of the supporting method, joist steel, metal nets and a hydraulic support are adopted for supporting a broken roof plate of a working surface in an auxiliary mode. When an opening is cut in the working surface, metal nets with certain specifications are overlaid on a section of a cut opening on the whole working surface are fixedly connected onto the section of the cut opening, and certain pitches among the metal nets are connected through iron wires. Afterwards, the hydraulic support is installed in the cut opening, a top beam of the hydraulic support butts against a direct top, so that the connected metal nets can droop in front of the hydraulic support and butts against a coal mine wall through a face guard plate. The joist steel is horizontally bundled on the metal nets before the hydraulic support through iron wires. In coal mining, the face guard plate is drawn back, and the metal nets in front of the hydraulic support are bundled on a column through iron wires. When coal mining is not performed, the metal nets are put down, the face guard plate butts against the coal mine wall, the support moves frontward, the metal nets are connected with the joist steel and moves to cover on the roof plate relative to the support, then work for connecting the metal wires and bundling the joist steel can be performed uninterruptedly and repeatedly until actual mining on the working surface is finished.

The invention discloses an anti-falling protective device for vertical conveying of building materials, and relates to the technical field of building material conveying equipment. The anti-falling protective device comprises a fixed base, and the top of the fixed base is fixedly connected with an installation plate; the front face of the installation plate is slidably connected with a material box; partition plates are fixedly connected between the two sides of the top of the inner wall of the material box and the two sides of the bottom of the inner wall of the material box; and a moving plate is slidably connected between one side of each partition plate and one side of the inner wall of the material box, and the tops of the moving plates are fixedly connected with lifting plates. According to the anti-falling protective device for vertical conveying of the building materials, the clamping connection effect is greatly improved, the situation that friction plates and elastic wedge-shaped buckles are heavily abraded due to long time using, and serious falling accidents occur is avoided quite well, the effect that the buckles and corresponding clamping plates do not make contact during normal using and are clamped only when accidents happen is achieved quite well, and accordingly, the anti-falling purpose is realized.

The invention relates to an intelligent communication iron tower with wind preventing and climb preventing functions. The intelligent communication iron tower comprises a bottom plate, a first tower body, a second tower body, a platform, a lightning rod and four supporting feet. A notch is formed in the top end of the first tower body and internally provided with a lifting mechanism; four climb preventing mechanisms are arranged on the lower portion of the bottom plate; the lifting mechanism comprises a lifting plate, a flat plate, a driving assembly and two driven assemblies; each driven assembly comprises a telescopic frame, a hinging block, a sliding ring, a sliding rail and a driven unit; and each climb preventing mechanism comprises a baffle, a vertical plate, a hinging unit and a pulling unit. According to the intelligent communication iron tower with the wind preventing and climb preventing functions, the lifting mechanism in the notch drives the second tower body to move downwards in the strong wind weather, so that the height of the iron tower is decreased, the gravity center position of the iron tower is lowered, and the collapse accident is prevented; and in addition, detection is conducted through a camera, and when it is found that a person climbs the iron tower, climbing is obstructed through the climb preventing mechanisms, so that the falling accident is prevented, and accordingly the practicability of the iron tower is improved.

The invention discloses a beam falling prevention device. The beam falling prevention device comprises four fixing devices, two limiting devices and three stay ropes; the four fixing devices are pairwise combined; the two fixing devices in each combination are symmetrically connected through one stay rope; one limiting device is arranged in middle of one stay rope for connecting the two fixing devices; and the two limiting devices are connected through a stay rope. The novel beam falling prevention device is reliable in longitudinal beam falling prevention performance, is excellent in transverse beam falling prevention effect, is complete in functions, is simple in structure, prevents the generation of beam falling accidents in earthquake, and achieves the purpose of seismic fortification.

The invention relates to a mining method. The stoping sequence of the mining method is that layers are turned from top to bottom; each stoping layer is 2-2.2m; the bottoms of the stoping layers are filled with materials; mining and filling are performed simultaneously in the stoping process; the filling layer is taken as the roof of the next stoping layer; a working face is advanced from the roof to the floor; in the process of production, the maximal roof control distance of the stoping working face is 3.2m and the minimal roof control distance is 2.2m; one or two reinforced concrete water-resisting layers are arranged on each stoping layer; the water-resisting layers tilt to one side and drain water to a water sump at the next layer and water is drained out of a mine by a drainage system of the mine. By adopting the method, the traditional mining technology is changed. The downward horizontal-slice dry-type filling mining method has the advantages of improvement of stoping efficiency, simultaneousness in mining and filling, full utilization of wastes which are generated in the process of mining and smelting, lessened pollution of discharged pollutants to the environment, reduction of land occupation and basic eradication of roof fall accidents.