988 results about "Work safety" patented technology

The invention discloses a live-line work safety monitoring system based on artificial intelligence, and relates to the technical field of intelligent electric power safety, and the system comprises a data collection module which is used for collecting and preprocessing work data in a live-line work area in real time, and extracting live-line body point cloud data based on the work data; the finite element grid unit is used for dividing all charged bodies into finite element grid units and judging high-temperature charged bodies; and the violation judgment module is used for calculating the electric field intensity value of the position where the operator is located in real time. By combining an electric field, a temperature field and three-dimensional point cloud multi-modal data, comprehensive dynamic perception of an operation area is realized, finite element modeling and dynamic non-uniform heat source distribution analysis are adopted, a high-temperature charged body is accurately identified, the equipment fault early warning capability is improved, action characteristics of an operator are captured through a long-short-term memory network, and the working efficiency is improved. And the illegal behaviors are accurately judged by dynamically combining environmental data, and an optimal operation path is generated in real time by utilizing a three-dimensional grid division and dynamic planning algorithm.

The invention relates to the technical field of bolt mounting equipment, in particular to an angle steel tower bolt perforation mounting method. By means of autonomous navigation of the installation robot and flexible operation of the mechanical arm, rapid positioning and taking-out of bolts and nuts are achieved, and the risk of manual climbing and operation is reduced. Accurate insertion and preliminary positioning of the bolt are ensured through accurate control of the mechanical arm, then the fastening effect is enhanced by combining impact tightening with the intermittent hammering technology, the fit clearance between the angle steel is effectively eliminated, and the bolt is prevented from loosening. The whole process is highly automatic, personal errors are reduced, and the mounting quality and the working safety are improved.

The invention discloses a video analysis-based multi-scene operator violation behavior identification method and system, and belongs to the technical field of intelligent operation safety monitoring and artificial intelligence identification, and the method comprises the steps: collecting a real-time video stream of a multi-scene operation site; recognizing a continuous action time sequence in the real-time video stream by using an action recognition depth model; constructing the continuous action time sequence into an action behavior sequence; the action behavior sequence is constructed into a directed behavior graph with time, space and action labels, the directed behavior graph is compared with a directed behavior graph corresponding to the standard action behavior sequence, and illegal behaviors are recognized; and carrying out multi-mode early warning on the identified illegal behaviors. According to the method, the bottleneck that the traditional image recognition technology is weak in action sequence semantic understanding and poor in environmental adaptability is broken through, and accurate recognition and real-time early warning of illegal behaviors in multi-scene operation are achieved.

The utility model relates to the technical field of laser cutting, in particular to a laser cutting machine with a protection device, which can protect sparks generated by cutting, prevent the sparks from splashing to the periphery, reduce the possibility of injury to workers and improve the protection intensity to the workers. Comprising a workbench, a plurality of supporting legs and a protective cover, the supporting legs are fixedly installed at the four corners of the bottom end of the workbench respectively, non-slip mats are arranged at the bottom ends of the supporting legs, and the protective cover covers the top end of the workbench; the laser cutting device further comprises a laser cutting head, a cutting mechanism, a fixing and clamping mechanism, a protection mechanism and a waste chip collecting assembly, the cutting mechanism is installed at the top end of the interior of the protection cover, the laser cutting head is installed at the output end of the cutting mechanism, the fixing and clamping mechanism is installed at the top end of the workbench, and the protection mechanism is located outside the laser cutting head. The waste chip collecting assembly is installed at the output end of the cutting mechanism and installed at the bottom end of the workbench.

The invention discloses a crew workload evaluation method and system based on multi-source data fusion, and the method comprises the steps: 1, carrying out the collection of multi-source data, and enabling the multi-source data to comprise objective data and sensory monitoring data; 2, performing feature extraction on the multi-source data; 3, based on the physiological data and the sensory monitoring data, performing feature layer fusion and decision-making layer fusion; and step 4, visualizing the workload evaluation result to present the real-time workload level of the sailors, and when the workload index exceeds a preset threshold value, triggering an early warning prompt to remind the sailors and managers to pay attention to the fatigue risk. According to the method, multi-source heterogeneous data are comprehensively utilized, comprehensive and accurate evaluation and real-time visual presentation of the load state of the sailors are achieved, an effective early warning mechanism is constructed, and the method has important application value in the aspect of improving the working safety and the working efficiency of the sailors.

The invention discloses an intelligent manufacturing workstation safety control system oriented to man-machine cooperation, and belongs to the technical field of intelligent manufacturing and man-machine cooperation. The system comprises a multi-modal sensor array, a personnel state sensing module, a robot state monitoring module, a dynamic safety area adaptive calculation module, an intention prediction and risk assessment module, a cooperative control decision module and an execution feedback module. The dynamic safety area self-adaptive calculation module constructs geometric representation of a man-machine interaction space based on a topological manifold theory, and calculates a dynamic safety boundary in real time; the intention prediction and risk assessment module is fused with multi-source information to predict a future trajectory of a person and assess a collision risk; the cooperative control decision module performs multi-objective optimization with safety and efficiency as double objectives to generate an optimal adjustment strategy, the system realizes prospective safety control based on intention prediction, the cooperative efficiency is improved by 25%-45% on the premise of guaranteeing safety, and the working safety accident rate is reduced to be close to zero.

The invention discloses a transformer substation hoisting operation suspension arm movement distance monitoring device, and belongs to the technical field of distance monitoring. A transformer substation hoisting operation suspension arm moving distance monitoring device comprises a bottom plate, a rotating mechanism is installed in the middle of the bottom plate, a rotating plate is installed on the rotating mechanism, a suspension arm body is installed on the rotating plate, an installing base is installed on the top of the suspension arm body, a driving box is fixed to the installing base, and a distance monitoring mechanism is installed in the driving box. Supporting mechanisms are installed at the four corners of the bottom plate. The problem that when an existing hoisting mechanism works, a full-time worker needs to stand on the ground and look up with naked eyes for observation and judgment, and the working safety of a crane is affected due to low accuracy is solved, the safety distance of a hoisting arm body does not need to be manually observed with the naked eyes, the working safety of the hoisting arm body is improved, and the working efficiency is improved. And normal work of the suspension arm body is guaranteed, so that the working efficiency is improved, and dust and impurities are prevented from entering the driving box.

The invention discloses a coal mine underground safety detection method and system based on face image recognition, and relates to the technical field of coal mine safety detection. The method comprises the following specific implementation steps: through a video target recognition technology and a self-adaptive face recognition method, recognizing the identity of a miner and the wearing condition of safety equipment in each working area, and obtaining a miner number and a first danger index; secondly, according to the motion trail matching and behavior analysis technology, analyzing the danger degree of various behaviors of the miner to obtain a second danger index; then, according to the environmental parameters, evaluating the danger level of the miner working environment, and calculating a third danger index; finally, in combination with the danger index of the miner and the danger degree of the working area, the working safety condition of the miner is comprehensively evaluated, the comprehensive danger index is obtained, danger grading is carried out, early warning information can be sent out in time, the safety risk of underground operation of the coal mine can be effectively reduced, the safety of operators is ensured, and safety accidents are reduced.

The invention relates to the technical field of plate processing, and discloses a furniture plate processing filing device which comprises a bottom plate fixedly mounted at the top of a workbench, a rear plate is integrally formed at the top of the bottom plate, a shaft seat is fixedly mounted at the top of the bottom plate, and a rotatable rotating shaft is mounted on the outer wall of the shaft seat; and a driving connecting rod is fixedly mounted on the outer wall of the rotating shaft. The file can mechanically file a plate through reciprocating pressing and releasing of the fulcrum block on the file, and the plate is filed only when the file moves forward, so that the frequency of manual operation is reduced, the risk that an operator is accidentally injured is reduced, the working safety is improved, and the working efficiency is improved. And the file only exerts force when moving close to the plate and loosens when moving away from the plate, so that the process is repeated, only the cutting edge of the file is used for filing the plate in the filing process, the abrasion of the cutting edge of the file is reduced, and the service life of the file is prolonged.

The invention belongs to the technical field of disc tool magazines, and particularly relates to a disc tool magazine tool reversing device which comprises a tool rest box, a rotating disc is rotationally arranged in the tool rest box and connected with a rotating motor, a tool outlet is formed in the bottom of the tool rest box, and mounting frames distributed in an annular array mode are arranged on the outer side of the circumference of the rotating disc. Sliding blocks are slidably connected to the two sides of the mounting frame in a limiting mode and slide in the radial direction of the rotary disc in a limiting mode, a tool sleeve structure is rotationally connected between the two sliding blocks through a torsional spring, a rotary driving mechanism and a pushing mechanism are arranged at the positions, corresponding to the tool outlets, of the tool rest box, and the rotary driving mechanism pushes the tool sleeve structure to rotate. And the pushing mechanism downwards pushes the sliding block and the knife pouch structure. When the tool pouch structure is in a horizontal placement state, the horizontal extension distance of the tool bit is reduced so as to reduce the movement range of the tool bit to ensure the working safety, and the distance of the tool bit extending out of the tool outlet is increased when the tool bit is taken.

The invention provides a target detection method and device, and relates to the technical field of operation safety. The specific implementation scheme is as follows: acquiring a monitoring video of a monitoring area; based on the monitoring video, operating personnel and operating vehicles in the monitoring area are identified, and personnel identification results of the operating personnel and vehicle identification results of the operating vehicles are obtained; based on the personnel identification result and the vehicle identification result, detecting whether the operator operates on the operation vehicle; detecting whether a driver intends to drive the operation vehicle or not in response to detecting that the operator operates on the operation vehicle; and in response to the detection that the driver intends to drive the operation vehicle, an instruction for forbidding driving is sent out. The operating personnel and the operating vehicle are automatically analyzed on the basis of the monitoring video, and when a driver intends to drive the operating vehicle, an instruction can be sent out in time, so that the workload of the monitoring personnel can be reduced, and the safety of an operating area is improved.

The utility model belongs to the technical field of hydraulic supports, and particularly relates to a hydraulic support bottom lifting device which comprises a rear installation plate, a push rod hinge seat is fixedly connected to one side wall of the rear installation plate, and an electric push rod is hinged to the push rod hinge seat. The two sets of side mounting plates are arranged, the two sets of side mounting plates are arranged on the side, located on the rear mounting plate, of the push rod hinge seat, and a top cover plate is arranged above the side mounting plates; and one side wall of the supporting frame is fixedly connected with the telescopic end of the electric push rod. By arranging the top cover plate, the bottom lifting device can be protected conveniently, the working safety is improved, and mineral coal briquettes are prevented from being clamped on the working bottom lifting device; longitudinal space can be saved conveniently, the hydraulic support is prevented from colliding with the bottom lifting device to be damaged during working, and the safety of the device is improved. Reset assistance can be conveniently carried out on the supporting frame when the electric push rod shrinks and resets, transmission continuity is improved, clamping is avoided, and the device is diversified in function.

The invention discloses a security and disinfection integrated big data platform regulation and control method based on artificial intelligence, and relates to the technical field of safety production and fire-fighting management, and the method comprises the steps: obtaining operation data and historical data, carrying out the standardization processing of the operation data, generating a training data set, training and constructing a deep convolutional neural network model, spatial correlation features are extracted through multilayer convolution operation, key state information is identified in combination with an attention mechanism, and a feature mapping matrix is generated; inputting the feature mapping matrix into a constructed safety evaluation model, calculating a safety risk index, and dividing risk levels according to the safety risk index; and generating an inspection task list according to a risk grade division result, and issuing the inspection task list to the mobile terminal for execution, thereby realizing dynamic regulation and control of the security risk. The technical bottlenecks of a traditional security and disinfection integrated platform in the aspects of data analysis, risk identification, management and control and the like are broken through, intellectualization and precision of security risk management are achieved, and the security management efficiency is improved.

The invention provides an intelligent supervision system and method for safety production liability insurance, and is applied to the technical field of supervision science and technology. The system comprises an enterprise port, an insurance institution port, a supervision department port and a background port, and integrates four modules: an automatic safety insurance data matching module synchronizes insurance buying information in real time and generates a supervision form; the safety production state monitoring module collects enterprise data to support risk assessment and provide accident prevention service; the accident prevention service evaluation module judges validity through data comparison before and after service and tracks and rectifies the data; and the data statistical analysis module realizes multi-dimensional query, dynamic ranking and visualization. According to the method, data collection, state monitoring, effect evaluation and rectification closed-loop management are realized through multi-port deployment, and a supervision mechanism of enterprise evaluation and supervision reward and punishment linkage is established. According to the invention, through cross-department data intercommunication, the problems of information isolated island and supervision lagging of the traditional responsibility insurance are effectively solved, and the supervision efficiency of the responsibility insurance is remarkably improved.

A helmet, which can, for instance, be a sports helmet or a work safety helmet, comprises a helmet body that comprises a solid foam of expanded foam particles, wherein the solid foam at least regionally has a varying hardness.

The utility model discloses a novel static mixer, which belongs to the technical field of mixers, and comprises an inlet flange, a mixer shell is fixedly mounted at the top of the inlet flange, a wave-shaped long blade rod is arranged in the mixer shell, a rotating seat is rotatably mounted at the bottom of the wave-shaped long blade rod, and the rotating seat is fixedly mounted on the top of the inlet flange. A connecting ring is fixedly mounted at the bottom of the rotating seat, two groups of inserting grooves are formed in the connecting ring, mounting assemblies are arranged in the two groups of placing grooves, and two groups of placing grooves are formed in the inlet flange, so that an operator can more conveniently and quickly maintain equipment; compared with the prior art, potential safety risks in the maintenance process are reduced, the working safety is improved, the downtime of a production line is shortened, the working efficiency is improved, the wave-shaped long blade rod can be adjusted or replaced at any time according to needs so as to meet the requirements of different production processes or products, and the practicability of the device is greatly improved.

The utility model discloses a pipe fitting clamping mechanism and a positioning device, and relates to the pipe fitting clamping technology. And according to the cutting length of the needed pipe fitting, the first threaded rod is rotated, so that the limiting plate gradually gets close to or away from the cutting area under the action of threaded transmission of the first threaded rod and limiting of the first sliding groove. The purpose that workers can conveniently adjust the distance between the limiting plate and the cutting interval is achieved. And the to-be-cut pipe fitting is arranged in the first clamping channel in a penetrating mode, and the end of the to-be-cut pipe fitting abuts against the limiting plate. And the first driving piece is operated to drive the first clamping arm and the second clamping arm to get close to each other, so that the to-be-cut pipe fitting is clamped in the first clamping channel between the first clamping arm and the second clamping arm. And the purposes of improving the stability in the pipe fitting cutting process and further improving the pipe fitting cutting precision are achieved. And meanwhile, the purposes of reducing the displacement risk of the pipe fitting and further enhancing the working safety are achieved. And on the other hand, the purpose that pipe fittings with different diameters can be clamped between the first clamping arm and the second clamping arm is achieved.

The invention provides a man-machine interaction safety dynamic early warning method based on digital twinning and behavior prediction, and the method comprises the steps: S1, collecting the real-time data of a working site through a sensing layer, and enabling the data to comprise the personnel position, equipment state and environment information; s2, constructing a digital twin model based on the acquired data, wherein the model maps the dynamic state of a working site in real time; s3, generating a personnel behavior track and an equipment action range through a prediction algorithm, and calculating a dynamic risk field to evaluate space-time conflicts; s4, according to the risk value of the dynamic risk field, triggering a multi-stage early warning mechanism to reduce the risk of the operation field; and S5, displaying the real-time state and risk information in the digital twinborn model through a visual interface. According to the invention, through deep fusion of digital twinning and dynamic risk prediction, real-time monitoring and accurate prevention and control of the safety risk of the operation site are realized, and the safety management efficiency and the operation safety are greatly improved.

The invention belongs to the technical field of aerial work auxiliary tools, and particularly discloses a tower climbing anti-falling device based on unmanned aerial vehicle auxiliary installation. The hanging assembly comprises a hanging frame butt joint unit and a hanging frame, and the hanging frame butt joint unit is in vertical sliding fit with the hanging frame. The hanging frame is horizontally matched with a shrinkage sliding block in a sliding mode, and a driving piece is arranged on the hanging frame. A locking device is connected to the contraction sliding block, and a locking strip is arranged on the hanging frame. The hanger butt joint unit is connected with a connecting piece, and the connecting piece is connected with a locking device; when the hanging frame butt joint unit slides upwards, the connecting piece drives the locking device and the locking strip to be unlocked, and at the moment, the connecting piece can drive the contraction sliding block to move to the starting point position. When the hanging frame butt-joint unit slides downwards and resets, the connecting piece drives the locking device and the locking strip to be locked, and at the moment, the driving piece can drive the contraction sliding block to move towards the terminal position. The anti-falling device can play an anti-falling role, and the operation safety is improved.

The invention relates to the field of lightning arresters, in particular to a gapped alternating current lightning arrester which comprises a lightning arrester body and a pressing column, a stainless steel drainage ring is mounted on the pressing column, and a cavity is formed in a supporting seat mounted on the lightning arrester body and connected with the pressing column in an up-down sliding mode. Through cooperation of a pressing plate, a first spring, a right-angle baffle, a clamping mechanism, an extrusion mechanism and a limiting mechanism, when the stainless steel drainage ring is installed, a pressing column is completely inserted into a supporting base, then the pressing plate is pressed downwards, and then the stainless steel drainage ring can be fixed; the stainless steel drainage ring can be unfixed only by pressing the pressing plate to the maximum degree, then the stainless steel drainage ring can be taken down, in the whole disassembling and assembling process, a worker only needs to operate with one hand, the other hand can grasp an external object to stabilize the figure of the worker, and therefore the operation convenience of the worker can be improved, and the labor intensity of the worker is lowered. And the operation safety can be improved.

The invention discloses an operation safety portrait management method and system based on a large model, and relates to the technical field of operation safety portrait management, and the method comprises the steps: 1, selectively scheduling a plurality of video collection devices installed in a working region; step 2, constructing an operation safety evaluation model for verifying workers in multiple dimensions; 3, predicting a real-time danger coefficient of the experiment; 4, drawing an operation safety portrait of the verification worker; and 5, managing the working state of the verification worker. According to the method, the real-time operation portrait of the verification worker is drawn through the operation safety evaluation model and the danger evaluation model constructed in multiple dimensions, and compared with the prior art, the operation safety portrait drawn by the method has real-time performance, the matching degree is higher, and the operation safety performance is improved. The real-time working state of the verification worker can be effectively managed through the real-time operation safety portrait, and the use effect of the system is improved.

The invention discloses an aerial work platform intelligent supervision method and system based on data analysis. The method comprises the following steps: S1, collecting operation state data of an aerial work platform and behavior video stream data of an operator; s2, inputting a dynamic time warping network to carry out cross-modal time alignment, and outputting a key state feature sequence; s3, inputting the behavior video stream into a double-path Transform model, and generating an operation behavior representation sequence; s4, jointly modeling key state features and behavior characterization, and constructing a risk scoring function; s5, the risk scoring result is compared with a grade threshold value, an early warning mechanism is triggered, and a control instruction is generated; s6, executing platform control actions, such as speed limiting, descent, locking, pause and recording feedback; and S7, updating the model by taking the key state characteristics, the behavior characterization, the scoring result and the feedback as samples. According to the invention, intelligent identification and early warning of high-altitude operation states and behaviors are realized, and operation safety and supervision efficiency are improved.

The invention belongs to the technical field of scaffolds composed of wheels, and particularly relates to an operation platform applied to a photovoltaic power station and a using method thereof.The operation platform comprises a movable seat, an operation table arranged above the movable seat and a safety frame fixed to the top of the operation table; the device further comprises two rotating shafts, the two rotating shafts rotate at the top of the movable base and the bottom of the operation table through the bases correspondingly, and the outer walls of the two rotating shafts are fixedly sleeved with two synchronous wheels correspondingly. And the two synchronous wheels located on the same side are in transmission connection with the same synchronous belt, and a plurality of L-shaped blocks are fixed to the outer wall of the synchronous belt. According to the photovoltaic panel conveying device, when the operation table ascends, photovoltaic panels are effectively conveyed through cooperation of an L-shaped block and a synchronous belt, the conveying difficulty of the photovoltaic panels is lowered, the working safety degree of workers is improved, in addition, through rotation of a rotating rod, the workers can be effectively shaded through sunshade cloth, and the working efficiency is improved. And a comfortable working environment can be provided for workers.

This invention relates to a method and system for intelligent analysis of rooftop work behavior and foreign object detection in electric locomotives. The system includes maintenance personnel climbing onto the roof and inputting video stream data from a camera above the roof into a target detection module. The target detection module performs image preprocessing on the input video stream and then detects rooftop maintenance actions and safety ropes. Once the maintenance personnel are stationary, foreign object detection is performed on the roof. This invention assists operators of disconnecting switches in monitoring and analyzing the maintenance process on electric locomotive rooftops. It provides real-time monitoring and automatic alarms for work processes, actions, and tool status, reducing the risk of tool residue, standardizing work processes, and ensuring the safety of workers. This system represents a shift from traditional manual monitoring to intelligent and automated monitoring, providing strong technical support for rooftop work safety, tool management, and process traceability in electric locomotives.

The invention provides a supporting structure, an oven and a using method. The oven comprises an oven body, an oven door, an oven tray and the supporting structure, and the bottom of the oven door is rotationally connected to the bottom of an opening of the oven body; the supporting structure is installed on one side of the inner wall face of the box door. The supporting structure comprises a motor and a lead screw. The screw rod is rotationally erected and supported through a bearing seat; two threaded sections with opposite spiral directions are arranged on the lead screw, the threaded sections are sleeved with sliding sleeves, and push blocks are mounted on the top surfaces of the sliding sleeves; the sides, close to the center of the lead screw, of the push blocks are rotationally connected with supporting plates, and the ends of the two supporting plates are movably connected through a supporting plate. The lead screw is driven by a motor to drive the two sliding sleeves to move, and therefore the supporting plate is driven to ascend and descend. The baking tray dragging device can stably support a baking tray dragged to the outside, two hands can be released for intermediate operation, and efficiency and operation safety can be improved.

The invention discloses a weld joint identification method based on visual inspection. The method comprises an image acquisition module, a data preprocessing module, a deep learning detection module, an image segmentation and contour extraction module, a weld joint parameter calculation module, a result visualization module, a real-time optimization module and the like. According to the method, the detection precision is improved, the generalization ability of the model in a complex scene is remarkably improved, the adaptability is enhanced, the real-time performance of the system is remarkably improved by optimizing an algorithm structure and a hardware acceleration scheme, a comprehensive evaluation function is added, and multi-dimensional evaluation indexes are provided for the welding seam quality; in addition, the method can also be applied to welding quality control in industrial production, helps enterprises to reduce the rework rate and material waste, and is expected to save 10%-15% of production cost for related welding industries. The objective and reliable welding seam quality evaluation method is provided, the fairness and accuracy of special operation examinations are improved, and the skill level and work safety of special operators can be improved.

The invention discloses an underground directly-buried pipe network dismantling device for old community heat supply network transformation, and relates to the technical field of pipe network dismantling, the underground directly-buried pipe network dismantling device comprises a pipe dismantling mechanism, the pipe dismantling mechanism comprises a support frame body, a cutting sliding plate arranged on the support frame body, and an electric push rod arranged on the cutting sliding plate; the cutting machine body is arranged on the electric push rod; and the supporting mechanism comprises a supporting rod body arranged on the supporting frame body, a clamping assembly arranged on the supporting rod body, a ground supporting assembly arranged on the clamping assembly and a reinforcing assembly arranged on the ground supporting assembly, and the supporting frame body adopts a linear design, so that the supporting mechanism can be accommodated; the cutting machine body can be conveniently erected in the narrow environment, the working efficiency is improved, the position of the cutting machine body can be flexibly adjusted through sliding connection between the cutting sliding plate and the supporting frame body, the working safety is improved, and the efficiency and safety of pipeline maintenance in the narrow road environment of an old community are remarkably improved.

The utility model relates to the technical field of greenhouses, in particular to a sunshade net for greenhouse planting, which comprises a greenhouse body, a sunshade net body and a covering and collecting assembly, a walking motor drives a walking gear to rotate, the walking gear moves along walking teeth on a walking frame, a walking box drives a limiting sliding block to move in a limiting sliding groove, and the sunshade net body is driven by a motor to rotate. Walking work is limited, work safety is improved, a walking box drives a covering rod to move in a covering groove, the covering rod drives a sunshade net body to move, the sunshade net body drives a retracting column to rotate, a coil spring deforms, the sunshade net body conducts sunshade covering work on a greenhouse body according to use requirements, the covering range is controlled, and the greenhouse is more convenient to use. The walking gear rotates reversely, the covering rod drives the sunshade net body to move towards the initial position, under the action of return of the coil spring, the sunshade net body is wound through the winding column, manual covering and winding are not needed, the working cost is reduced, and the working efficiency is improved.

The push-pull type guardrail of the reversed loader comprises an overhead rail and a plurality of protective nets which are located below the overhead rail and can be folded and stretched, the heads and the tails of the protective nets are rotationally connected through hinges, and the middle portion of the top end of each protective net is provided with a moving assembly in rolling connection with the overhead rail through a U-shaped support. When the transfer machine runs, only the protective nets need to be pulled open, all the protective nets are unfolded to form a barrier, a warning board is hung on the protective nets, personnel entering an equipment operation area can be greatly reduced, a good warning effect is achieved, the protective nets are hung below the hanging rail, personnel carrying is not needed, and the safety of the transfer machine is improved. And the situation that the personnel deliberately move away and do not use is completely eradicated, the working safety environment is improved, and the habitual violation phenomenon of the personnel is reduced.

The invention provides a safety management and control method based on multi-source fusion safety helmet positioning and a related device, and relates to the technical field of operation safety management and control. Indoor and outdoor seamless positioning is realized through the multi-source positioning module, a grading alarm strategy is generated by combining behavior portraits with safety rule matching, the problems of positioning fault, risk identification lag and alarm extensibility of a traditional scheme are solved, and the method has the advantages of improving positioning reliability, enhancing risk perception real-time performance and reducing false alarm rate.