80results about How to "Reduce personal safety risks" patented technology

Disclosed are a building structure and a construction method. The building structure comprises upright columns, prefabricated plates or prefabricated frames and columnar connecting parts. Each prefabricated plate or prefabricated frame comprises reinforced beams or section crossbeams and embedded connecting parts, wherein the reinforced beams or section crossbeams are embedded in the prefabricated plates or prefabricated frames, and the embedded connecting parts are arranged at connecting joints for connecting the reinforced beams or section crossbeams; the columnar connecting parts are mounted at connecting joints of the prefabricated plates or prefabricated frames; the number of the columnar connecting parts is smaller than or equal to that of the embedded connecting parts; each embedded connecting part comprises a first positioning mechanism; each columnar connecting part comprises one to four second positioning mechanisms matching with the corresponding first positioning mechanisms in a one-to-one correspondence manner; and the first positioning mechanisms and the corresponding second positioning mechanisms are vertically connected in an inserted manner, and the columnar connecting parts are fixed with the one to four embedded connecting parts at the connecting joints. The building structure and the construction method have the advantages that various portions of the building structure can be mechanically assembled and disassembled, can be reused, and are convenient in assembly and disassembly, and the connecting joints are firm and reliable in connection and fine in load-carrying capability.

An existing railway reinforcement construction method in the jacking process of a box body comprises the following steps: performing grouting treatment to railway ballast below an existing railway positioned in a to-be-jacked area, moving concrete sleepers, penetrating wooden ties among the concrete sleepers, mounting locking tracks, forming a beam arranging ditch, penetrating a beam, mounting a longitudinal beam, and the like. The method provided by the invention has the following advantages: the operation of renewing concrete sleepers is reduced, so that the damage to the original road bed/track bed is reduced, and the stability of the road bed is high; the depth of a dug ditch and the work amount of reinforcement are reduced, the construction period and the on-line operation time are shortened, and the risk of personnel safety and running of an existing railway is lowered; grouting solidification can effectively reduce the problem that vibration is caused when a train passes, so that railway ballast rolls into the ditch, and then repeated operation can be avoided; insulating boards of 3 cm in thickness and H-steel of 45 cm in height are arranged at the lower part of a steel rail, so that the reserved space is enlarged, a treatment space is provided for the rising phenomenon that possibly occurs when the box body is jacked, and running safety of the existing railway can be ensured.

The invention provides a tree pruning machine. The tree pruning machine comprises a movable base, a rotary lifting mechanism, a control box, a mechanical arm, a pruning mechanism and a wireless remotecontroller, wherein the rotary lifting mechanism and the control box are both arranged on the movable base; one end of the mechanical arm is connected with and arranged on the rotary lifting mechanism; the pruning mechanism is connected with and arranged at the other end of the mechanical arm; the movable base, the rotary lifting mechanism, the mechanical arm and the pruning mechanism are in independent control connection with the control box; and the wireless remote controller is in communication connection with the control box. According to the invention, by means of remote control, the pruning machine can be easily controlled; the personal safety problems like the possibility that a person is injured by crushing of trees due to insufficient safe distance of the trees and overhead lines, the need of multiple persons for cooperation during tree pruning and easy generation of errors during pulling of to-be-pruned trees in the reverse direction of the lines through working ropes are effectively solved; meanwhile, the personal safety risk of near-electric operation of operating personnel is reduced.

The invention relates to a rolling bearing fault diagnosis method based on wavelet and improved PSO-RBF neural network. The method comprises the following steps: S1, reading an original vibration signal of a rolling bearing state of a rail train; S2, carrying out wavelet denoising on the original vibration signal to obtain a pure vibration signal; S3, carrying out decomposition and phase space reconstruction on the pure vibration signal by using a wavelet packet, and extracting a feature vector; S4, training an improved PSO-RBF neural network by taking the feature vector as input and the corresponding bearing state as output to obtain a neural network fault diagnosis model; and S5, for a to-be-diagnosed original vibration signal of the rolling bearing of the rail train, inputting the feature vector obtained after the steps S1-S3 into the neural network fault diagnosis model obtained in the step S4 to obtain a diagnosis result of the rolling bearing. Compared with the prior art, the method has the characteristics of integrating the advantages of wavelet transform and an artificial intelligence algorithm, and can carry out accurate fault diagnosis on the rail transit running gear.

The invention relates to an outer building wall crack detection system and method based on machine vision. The system comprises a microcomputer processor, a CMOS sensor and a laser illumination system; the laser illumination system comprises four point-like laser transmitters arranged in the form of a rectangle; a transmission light beam is perpendicular to the imaging plane of a CMOS sensor; thecenter of the rectangular is positioned at the imaging center of the CMOS sensor; the microcomputer processor collects the image of the CMOS sensor in real time. According to the method, crack data isextracted via an image gray threshold processing and framework refining algorithm, the actual length corresponding to a unit pixel is acquired according to the pixel length of the rectangular formedby the extracted point-like laser, the absolute position of the current CMOS sensor under an outer wall reference system is acquired according to accumulation of relative movements between two frames,and thus the actual length of a crack and the coordinate of the crack under the outer wall reference system are acquired. According to the outer building wall crack detection system and method basedon machine vision provided by the invention, the automatic detection, size computation and coordinate positioning of the crack can be achieved, and the detection and positioning efficiencies of the crack are greatly improved.

The invention relates to a prefabricated reinforced concrete unit body for construction and a method for building construction. The prefabricated reinforced concrete unit body is a unit body which consists of a bottom slab, a wall/column and an upper floor slab, and the bottom slab, the wall/column and the upper floor of the unit body are respectively provided with a drawing component for positioning and reinforced bar drawing. The construction of an integrated building can be realized through four steps, site assembly and prefabrication of each reinforced concrete unit body and each floor formed by assembling the unit bodies, design and installation of water, gas and power supply as well as ventilation systems, indoor decoration and outdoor decoration. The technique of the prefabricated reinforced concrete unit body can be easily mastered, thereby effectively reducing the personal safety risk of operators, facilitating the control of the engineering quality, and realizing the prompt inspection and replacement of unqualified products and the dual protection of floors. Moreover, the prefabricated reinforced concrete unit body can be repeatedly used after being removed, thereby reducing the construction waste and producing great significance in environmental protection.

The invention provides a power transformation cabinet with the fault self-checking function. The power transformation cabinet is high in fault handling efficiency and low in operational risk. The power transformation cabinet comprises a voltage transformation module, a high-voltage module, a low-voltage module, a first external connection terminal, a second external connection terminal, a fault detection module, a storage module, a control module, an alarm module, a display module and an independent power source. The voltage transformation module is respectively connected with the high-voltage module and the low-voltage module, the first external connection terminal is connected with the high-voltage module and used for externally transmitting or receiving high-voltage electricity, the second external connection terminal is connected with the low-voltage module and used for externally transmitting or receiving low-voltage electricity, the fault detection module is respectively connected with the voltage transformation module, the high-voltage module and the low-voltage module for fault detection, a fault factor contrast data base is preset in the storage module and used for storing factors which cause faults and correspond to various fault expressive forms and the corresponding relations, and the control module is respectively connected with the fault detection module, the storage module, the alarm module and the display module.

The invention discloses a line channel safety analysis method based on tree growth prediction, and relates to the field of power transmission safety operation and maintenance. According to the method,tree point cloud data, high-resolution images and hyperspectral data are combined; a power transmission line channel tree database is established, the distance between a tree and a power line is judged according to the crown position range, the crown height and the growth coefficient, the potential safety hazard level of the tree is calculated according to the distance, and when the potential safety hazard level is marked as emergency, power transmission line operation and maintenance personnel are reminded to conduct on-site investigation and treatment n days before corresponding time nodes.The patrol workload of operation and maintenance personnel of the power transmission line can be greatly reduced, the patrol efficiency is effectively improved, the personal safety risk is reduced, and finally the operation and maintenance cost of the power transmission line is reduced.

The invention relates to the technical field of oil field downhole operation, and particularly discloses an oil pipe and sucker rod turnover system and method.The oil pipe and sucker rod turnover system comprises a pipe arranging unit, a transfer station storage unit, an in-out station conveying unit and a loading conveying unit. The pipe arranging unit comprises a roller way; an inclined material frame is arranged on one side of the roller way; one side of the material frame is provided with a displacement pipe arranging device used for vertically arranging pipe rods; the bottom of the displacement pipe arranging device is provided with a displacement cylinder used for driving the displacement pipe arranging device to rotate; the displacement pipe arranging device is of a U-shaped structure, and the opening end of the displacement pipe arranging device is movably connected with one end of the material frame. In the whole turnover process, the pipe rods do not fall to the ground, the simple, reliable and durable mine field mechanical properties are achieved, the safety and environmental protection requirements can be met, light single-row pipe rows serve as the basis in all links, assistance of other equipment such as hoisting is not needed, manual carrying and row moving are not needed, and the management level and efficiency are improved.

The invention provides a buffer device and a fire fighting truck. The buffer device is arranged below an object storing box in a foldable and unfolding manner, the object storing box is arranged on atruck chassis, the buffer device comprises a buffer plate which is hinged to or is in stretchable fit with the object storing box, or the buffer plate is hinged to or is in stretchable fit with the truck chassis; and the buffer plate is located below an opening of the object storing box in the unfolding state. According to the buffer device, when materials or objects need to be unloaded from the object storing box, the buffer plate stretches out or is rotationally opened to be arranged below the opening of the object storing box, in the material or object falling process, buffering through thebuffer plate is firstly carried out, then the materials or objects fall or slide to the ground, damage of the falling materials or objects to the ground or damage to the falling materials or objectsis reduced, and the personal safety risks can be effectively reduced. Meanwhile, after unloading is completed, reversed stretching or rotation is carried out to take back the buffer plate, overlengthor overwide truck bodies or influences on truck departure angles are avoided, and use is convenient.

A tea rolling machine. It relates to a tea rolling machine. Little threat to personal safety. It includes a frame, a kneading pan, a tea storage box, a transmission device and a motor. The tea storage box has a gland, the motor is fixed on the frame, and the outer edge of the kneading pan is gear-shaped. The kneading disc is connected with the transmission device through a worm, and the transmission device is connected with the motor. The personal safety risk in the adjustment process is reduced, and there is little threat to personal safety.

The invention discloses a rod body for electrified switch operation, belongs to the field of live line tools, and aims to turn circuit switches at high places on/off. The rod body comprises a rod body, wherein the rod body consists of the following components in parts by weight: 25-30 parts of high density polyethylene, 10-15 parts of insulating silicon rubber, 5-10 parts of hard amide, 5-10 parts of N-N'-methylene double-hard amide, 15-20 parts of a ceramic micro powder, 10-15 parts of high-strength glass fiber, 5-8 parts of fire-resistance mica, 2-4 parts of a flame retardant and 2-6 parts of an antioxidant. By adopting the technical scheme, the on/off of the circuit switches at high places can be achieved, climbing operation and operation with ladders can be reduced for operators, personal safety risks can be reduced, unreasonable allocation of sources and labor can be reduced, and the working efficiency can be improved.

The invention relates to a tailing pond spillway well monitoring method based on multi-sensor fusion. The method comprises the following steps of firstly, monitoring a tailing pond spillway well through a plurality of monitoring devices, transmitting monitored data to a computer in real time, carrying out fusion calculation on all the monitored data by the computer, specifically, setting different weight values for all detection indexes, performing weighted calculation on the states of all the monitoring indexes according to different weight values, and obtaining a final safety coefficient of a safe operation state of the spillway well; and finally, dividing the obtained final safety coefficient into a low risk, a medium risk and a high risk according to different intervals and the operation state, and making different early warning prompts and processing according to different levels of conditions. The monitoring method is optimized, fusion analysis is carried out on data transmitted by multiple sensors, and early warning is carried out according to the obtained parameters for evaluating the operation state of the spillway well, so that a more comprehensive and accurate result is obtained under various conditions in monitoring of the spillway well, and safe operation of a tailing pond is ensured.