27 results about "Hazard zone" patented technology

The disclosure relates to a method (100) for generating a power and force limiting, PFL, zone (10) for a robot (60), the method comprising: - obtaining hazard zone data of the robot (60), wherein the hazard zone data is indicative of a potential contact area (11) between the robot (60) and a person (1), - obtaining image data, wherein the image data is indicative of an operational environment (20) of the robot (60); - generating a spatial representation (21) of the operational environment (20) of the robot (60), based on the image data, wherein the spatial representation (21) is segmented into spatial elements (22), wherein each spatial element (22) comprises information about an occupancy state (01 to 03; F1 to F3), depending on whether the spatial element (22) is occupied (01 to 03) by an object or unoccupied (F1 to F3); - determining a safety parameter for each of the spatial elements (22) based on the spatial representation (21) of the operational environment (20) of the robot (60) and the hazard zone data, wherein a higher potential risk for the person (1) is assumed for an occupied (01 to 03) area and a lower potential risk for the person (1) is assumed for an unoccupied (F1 to F3) area; and - generating a PFL zone (10) based on the determined safety parameter, wherein the safety parameter comprises at least one or more of the following:  a maximum speed within the PFL zone (10),  a maximum force limitation within the PFL zone (10),  a maximum pressure limit within the PFL zone (10),  a directional movement restriction within the PFL zone (10),  a response time for hazard detection and reaction within the PFL zone (10).

This application relates to the field of coal mine safety technology, and provides a method and system for identifying complex hazard zones in gas-bearing goafs under the combined effects of coal and oxygen. The method first constructs a multi-field coupled model of "thermal-solid-gas" in the gas-bearing goaf, which includes mutually coupled gas concentration fields, air flow fields, oxygen concentration fields, gas temperature fields, and solid temperature fields. Then, the multi-field coupled model is numerically solved to obtain the spatial distribution characteristics of the temperature field, gas concentration field, and oxygen concentration field within the goaf. Finally, based on preset complex hazard zone identification rules and the superimposed area of ​​the temperature field, gas concentration field, and oxygen concentration field, the goaf is divided into different levels of Class I to Class IV complex hazard zones. This invention, by introducing a gas concentration field, achieves accurate identification of complex hazard zones caused by gas and coal spontaneous combustion, providing key theoretical basis and technical support for the coordinated prevention and control of complex hazards in goafs of high-gas mines.

The application discloses a target positioning system and method based on safety production, relates to the technical field of industrial safety production, and a model construction module is used for constructing a visual plane model according to situation distribution data of a target area and object positioning data to be processed; an object definition module is used for dividing the object to be processed into aerial targets and ground targets according to the spatial distribution of the object to be processed, and dividing the ground targets into static targets and dynamic targets according to the state of the object to be processed; an instruction receiving module is used for receiving external input instructions of the aerial targets, and determining the starting position and the ending position of the trajectory of the aerial targets; a trajectory planning module is used for generating a planning trajectory of the aerial targets according to the external input instructions, and defining a warning area and a danger area based on the planning trajectory, wherein the trajectory planning takes the minimization of the number of static targets in the warning area as a constraint condition, and outputs a final transfer trajectory; and the application can maximize the guarantee of production safety and reduce the safety hazards in industrial production.

This invention discloses a stamping process and apparatus for motor rotor laminations, relating to the technical field of motor rotor manufacturing and processing. It includes a vertical punch press, an upper die, a lower die, and a feeding mechanism. The vertical punch press includes a punch and a worktable. The worktable has a feeding station, a stamping station, and a unloading station arranged sequentially along the rotation direction of the rotating frame. Three evenly distributed, circularly arranged limiting slots are provided on the rotating frame, each corresponding to one of the feeding, stamping, and unloading stations. By cooperating with the feeding, stamping, and unloading stations arranged sequentially on the worktable, the feeding operation area is physically isolated from the stamping danger zone. Operators only need to place the blank at the feeding station away from the upper and lower dies, eliminating the need to extend their hands into the stamping closed area, thus completely eliminating the risk of workplace injuries such as severed fingers.

An alert system (100) configured to be carried by a device (400) and configured to signal an alert if an object (430a-430d, 440) is present within a hazard zone (410) proximate to the device (400). The alert system (100) is configured to emit an acoustic signal and to receive reflections (431a-431d, 441) of the acoustic signal from one or more surfaces in a vicinity of the alert system (100) at an array of acoustic transducers. The alert system (100) is configured to sample electrical signals output by the array of transducers in response to the received reflections, and to process the sampled electrical signals to determine a respective modelled position for each of the more surfaces. For each of the modelled positions, the alert system is configured to model a respective acoustic signal emanating from the modelled position, to determine if the one or more modelled acoustic signals are consistent with the sampled electrical signals, and, if not, to signal an inconsistency. The alert system (100) is also configured to determine if any of the modelled positions is within the hazard zone (410), and, if so, to signal an alert.

A machining system for wood or metal working is disclosed that incorporates a non-contact hazard detection and mitigation system to protect an operator from accidental contact with a working element such as a saw blade or the like. The system may include one or more sensors, such as two-dimensional cameras, depth sensors, three-dimensional time-of-flight sensors, thermal imagers, or electrode arrays, positioned proximate to the working element to track the location and movement of a human body part in multiple directions or planes. A controller may process sensor data to determine the position, velocity, or trajectory of the body part relative to the working element, identify hazardous situations such as entry into a hazard zone, and activate the hazard mitigation system to reduce the risk of serious injury to the human body part.

The invention relates to an aircraft comprising a ventilation duct (200) located at the boundary of a fire hazard zone (FHZ) of the aircraft. This ventilation duct (200) comprises a first flange (200a) intended to be located in the fire hazard zone (FHZ), a second duct (200b) with a second flange (200c) intended to be located in an adjacent zone (AZ). The ventilation duct (200) further comprises an intermediate layer (201) made of a composite material and located between the first flange (200a) and the second flange (200c), and fastening means for securing them together. Advantageously, the heat resistance of such a ventilation duct (200) is improved because the heat transfer between the first flange (200a) and the second flange (200c) is reduced by the intermediate layer (201) made of composite material. Figure to be published with the abstract: Fig. 2

The invention relates to the technical field of coal mine tunneling management and control, and discloses a coal mine tunneling face labor organization intelligent management and control system and a handheld terminal, and the system comprises an online meeting module which is used for enabling a coal mine tunneling face operator to participate in a meeting before class online; the personnel underground commuting path self-adaptive planning module is used for calculating the equivalent length of a commuting path by adopting a Dijkstra algorithm and planning an optimal commuting path according to a calculation result; the shift-over module is used for inputting key information of an on-duty state, so that a shift-over team can conveniently check the input information before getting on duty; and the operation process safety management and control module is used for positioning an operator so as to grasp the position of the underground personnel in real time, determining and delimiting a danger area according to a danger source, and persuading the operator to leave when the operator approaches or approaches the danger area. According to the invention, meeting before shift, underground commuting lines, shift change and personnel safety management and control are realized through a digital intelligent technology, and meanwhile, parallel operation of partial processes is realized, so that commuting time is shortened, labor intensity of workers is reduced, and safety is improved.

The invention discloses a safety early warning system and method for operating personnel under a quay crane based on fusion perception. The system comprises a multi-mode perception terminal, a UWB positioning base station, an intelligent visual component, an acoustic distance measurement unit, a data fusion processing server and an early warning execution device. Through UWB positioning, visual identification and acoustic distance measurement, multi-source position information of a person in an operation area is obtained, a fusion strategy is dynamically selected based on signal quality, and the position of the person is calculated in real time. On the basis, a dynamic electronic fence with the lifting appliance as the center is constructed, grade judgment is carried out on behaviors of entering a danger area or a forbidden area of the operating personnel, multi-stage response mechanisms such as sound-light alarm, terminal reminding or quay crane action control are triggered, and high-precision, non-blind-area, all-weather safety perception and closed-loop early warning intervention of the operating personnel are achieved. According to the method, the safety guarantee capability of personnel under quay crane operation can be remarkably improved, and the method has good engineering applicability and popularization value.

A system for detecting access to a hazard zone based on the relative depth of objects in industrial sites, according to an embodiment of the present invention, comprising: a camera for capturing real-time image data by recording the industrial sites to be set as hazard zones in real time; an image acquisition unit for collecting the real-time image data captured by the camera; an AI learning unit for building an industrial site image dataset based on the real-time image data and for training, verifying, and testing the AI ​​model, which will set up monitoring of the worker and an object area of ​​the worker detected by the monitoring, based on the industrial site image dataset; a hazard zone setting unit for setting the hazard zone from the real-time image data;an object area setting unit for setting an object area of ​​the worker in a shape surrounding the worker, based on the AI ​​model from the real-time image data; and a control unit for merging real-time image data from the hazard zone setting unit and the object area setting unit, for displaying this data on a screen, and for detecting whether the worker is entering an inside of the hazard zone, based on the merged real-time image data.

The invention discloses a method for dividing an impact dangerous area influenced by a fault. The method comprises the following steps: S1, calculating fault dislocation release energy; s2, a roadway shallow coal rock block casting speed calculation formula is obtained; s3, collecting support parameters such as roadway side anchor rods and anchor cables, and calculating support absorption energy; and S4, defining a dangerous energy index of the division of the impact dangerous area influenced by the fault, and completing the division of the impact dangerous area. According to the method, the roadway side anti-damage capability serves as the basis for dividing the dangerous areas, the dividing method for the three grades of the impact dangerous area influenced by the fault, namely the non-dangerous area, the weak dangerous area and the strong dangerous area is obtained, the grades of the impact dangerous area influenced by the fault can be accurately divided, and the method has great significance in guiding rock burst prevention and control design.

The invention discloses a target positioning system and method based on safety production, and relates to the technical field of industrial safety production, a model construction module is used for constructing a visual plane model according to situation distribution data of a target area and positioning data of an object to be processed; the object definition module is used for dividing a to-be-processed object into an air target and a ground target according to the spatial distribution of the to-be-processed object, and dividing the ground target into a static target and a dynamic target according to the state of the to-be-processed object; the instruction receiving module is used for receiving an external input instruction of the air target and determining a track starting position and a track ending position of the air target; the trajectory planning module is used for generating a planning trajectory of the aerial target according to an external input instruction, a warning area and a danger area are defined based on the planning trajectory, trajectory planning takes the requirement for minimizing the number of static targets in the warning area as a constraint condition, and a final transfer trajectory is output. And potential safety hazards in industrial production are reduced.

A machining system (100) for wood or metal working is disclosed that incorporates a non-contact hazard detection system (140) and hazard mitigation system (120) to protect an operator from accidental contact with a working element (110) such as a saw blade or the like. The system may include one or more sensors (150), such as two-dimensional cameras (152), depth sensors (154), three-dimensional time-of-flight sensors (160), thermal imagers, or electrode arrays (170), positioned proximate to the working element (110) to track the location and movement of a human body part (102) in multiple directions or planes. A controller (180) may process sensor data to determine the position, velocity, or trajectory of the body part (102) relative to the working element (110), identify hazardous situations such as entry into a hazard zone (130, 132), and activate the hazard mitigation system (120).

A kind of mining support equipment fixing piece processing device belongs to part processing device technical field, to solve the risk of stamping mistake injury that easily occurs when processing material taking and placing, operator needs to stretch hand or feeding mechanism into stamping area, and the problems of die clamping, die stripping difficulty and stamping waste material cavity clamping, the invention includes working frame and support seat fixed in the middle of working frame, the top of support seat is fixed with hydraulic press, and the output end of hydraulic press is equipped with upper die holder, the lower surface of upper die holder is fixed with punch in the middle, punch and template are vertical staggered in normal state, template is located in front side of punch, workpiece taking and placing area is completely away from stamping danger zone directly below punch, operator does not need to stretch hand or feeding mechanism into stamping area, avoids stamping mistake injury risk from space layout, at the same time, taking and placing area is not blocked by die, so that operating space and the replacement space of punch and template are more sufficient and convenient.

The application provides a construction worker air fall early warning method, system, device and medium, the method comprises the following steps: constructing a construction site BIM model and importing it into the Unity3D platform, integrating the construction air fall body model and the dynamic update SWRL reasoning rule of the hazard source, forming a construction site hazard source digital twin base model; real-time collection of positioning data of intelligent wearable devices is stored in the personnel positioning database, the personnel positioning information is analyzed, the personnel movement style is described, and the personalized safety early warning rule is formulated; real-time image acquisition detects the protection condition of the target air area, combines the necessity of setting protection of the target air area with the ontology SWRL reasoning rule, and timely updates the Unity3D model to create a hazard source trigger area; the distance between the personnel and each hazard source in the model, the current hazard area approach speed and the current hazard area residence time are calculated in real time, whether the threshold value is reached to trigger the alarm is judged. The application can realize the precise management of the construction worker air fall early warning.

The invention relates to a concrete pump, comprising: —a frame; —a supporting leg, the supporting leg having a supporting foot, the supporting foot being extensible relative to the supporting leg; and —a drive for driving a movement of the supporting leg relative to the frame. A camera image of a hazard zone around the supporting leg is produced by a monitoring sensor. The drive is controlled by means of a remote control. The data information is transferred to the remote control via an interface. The invention also relates to a method for supporting a concrete pump. On the basis of the received data information, it can be determined, by means of the remote control, whether the movement of the supporting leg causes a hazard.

The invention discloses an automatic lifting horizontal protection method and device, and relates to the technical field of industrial safety protection. According to the method, industrial operation conditions and personnel distribution data are collected, a dynamic danger area model containing sliding plate geometric features and personnel motion states is constructed, falling dynamics analysis is introduced, the sliding speed and impact kinetic energy of personnel on the surface of a sliding plate are calculated, the sliding speed and impact kinetic energy are converted into kinetic energy equivalent height and superposed to geometric safety height, and the safety of the sliding plate is improved. The self-adaptive calculation of the protection height is realized; meanwhile, a hierarchical interlocking control strategy is generated in combination with personnel behavior intention recognition and space-time risk scoring. According to the device part, a multi-section rigid frame and a gear and rack synchronous driving mechanism are adopted, and stable lifting is executed based on a multi-target optimized trajectory planning instruction. The problems that the height of a traditional protection facility is fixed, dynamic sliding impact cannot be handled, and control logic is rigid are solved, and the active safety and the intelligent level of industrial operation are improved.

The invention relates to a construction safety illegal behavior identification method and device and computer equipment. The method comprises the following steps: performing space-time matching on engineering information data of a construction site and multi-source sensing data to obtain space-time observation data; performing four-dimensional digital twinborn fusion modeling on the construction site according to the space-time observation data to obtain four-dimensional digital twinborn body data and entity state set data; according to the four-dimensional digital twinborn body data, site constraint analysis is carried out on construction safety compliance elements of the construction site, and dynamic dangerous area data and space-time compliance constraint set data are obtained; and according to the entity state set data, the dynamic dangerous area data and the space-time compliance constraint set data, performing two-channel construction safety violation analysis on the construction site to obtain violation event data. By adopting the method, the construction safety illegal behavior identification efficiency can be improved.

An incident command radio (102) is configured to provide remote activation of an emergency alarm at a first responder radio (104) in response to detecting duress of a radio user of the first responder radio, and where the first responder radio is not currently operating in an emergency mode. The incident command radio receives a trigger from the first responder radio identifying the first responder radio as a candidate for potential remote emergency activation upon entering a hazard zone (202) of an incident scene (200). Analytics are applied by the incident command radio to measured parameters of the first responder radio (104) to identify that the first responder radio in the hazard zone is being operated by a radio user under duress. In response to identifying that the radio user is under duress, the incident command radio (102) remotely activates the emergency alarm of the first responder radio (104).

The invention belongs to the technical field of risk identification management, and particularly relates to a risk area identification management system and method based on nuclear emergencies, and the system comprises a risk area division identifier, a target tracker, a wireless communication module and information sharing software. A target tracker, a wireless communication module and a light-emitting device are arranged in the dangerous area division mark, the dangerous area division mark is in a tumbler shape and is integrated with the light-emitting device, field personnel can conveniently and rapidly recognize the danger level, a target positioning algorithm is built in the target tracker, and once the target tracker is started, the target tracker can be used for positioning the danger level. According to the method, the accurate position, the determined dangerous area and the current dangerous level information are automatically reported to the information sharing software, the information sharing software is responsible for receiving and integrating data from the dangerous area division identification to form a unified dangerous area map, and the map can display the position, the size and the dangerous level of each dangerous area in real time. Therefore, the emergency command center can master the position information of each dangerous area in real time, and powerful support is provided for subsequent emergency response.

This application discloses a method, device, and medium for identifying potential hazards in a transmission line protection zone. The method involves using a monitoring device mounted on a transmission line tower to capture images of the transmission line; inputting these images into a tower detection network model to obtain corresponding bounding boxes; performing edge detection on the transmission line images to identify multiple conductor trajectories; determining the coordinates of the conductor endpoints of the two outermost conductor trajectories based on their coordinates; determining the projections of the conductor endpoints based on their coordinates, the lower edge of the tower bounding boxes, and the lower edge of the transmission line image; and identifying the protection zone corresponding to the transmission line based on these projections; and issuing a hazard alarm when the area of ​​the hazard zone within the protection zone exceeds a preset area value.

The application discloses a kind of based on image recognition's hoisting operation dynamic risk grading early warning system, it is related to operation safety early warning technical field, including: acquisition operation area continuous image, and establish image to ground coordinate mapping;To reference image carries out target detection, contour segmentation and cross-frame association, identifies hook, hoist load, personnel and fixed obstacle boundary, obtains corresponding trajectory, determines hoisting monitoring state based on hook and hoist load position corresponding relationship, continuous frame stability and hoist load displacement state;In hoisting state, according to hoist load trajectory, size and swing information generate dynamic danger zone that changes with motion direction, and revise in combination with fixed obstacle boundary;Then according to personnel trajectory, spatial distance, approach relationship and danger zone residence length of time calculates personnel risk value.The application solves static area and motion envelope mismatch by dynamic danger zone, enhances collision risk perception by boundary revision, realizes continuous evaluation by multidimensional spatiotemporal risk quantification.

Driverless industrial truck with at least one detection device for persons and / or objects in a protective field, which can trigger a safe stop for the industrial truck, wherein it is provided that the detection device can be silenced for predetermined operational hazard areas, wherein a position determination device and a clearance monitoring device are provided, wherein the position determination device determines the position of the industrial truck and compares it with the predetermined operational hazard areas, and the clearance monitoring device monitors at least one predetermined clearance field relative to the industrial truck for persons and / or objects, wherein the clearance monitoring device specifies a maximum permissible travel speed in the event of a breach of the clearance field, the value of which depends onwhether the positioning device determines the position of the industrial truck outside or inside one of the operational hazard zones.

The application discloses a mine-used alarm device for a dangerous area, and relates to the technical field of mine-used alarm devices.The mine-used alarm device comprises a mine-used intrinsic safety type optical fiber camera, a line interface fixed on the mine-used intrinsic safety type optical fiber camera, and a transmission line coupled with the line interface.The mine-used alarm device further comprises a protection assembly.The protection assembly comprises an air source device, an air pipe and a sealed bin.The sealed bin is a hollow cuboid and is fixed on the mine-used intrinsic safety type optical fiber camera, and the line interface is located in the sealed bin.A through hole is formed on the sealed bin away from the mine-used intrinsic safety type optical fiber camera, one end of the transmission line extends out of the sealed bin through the through hole, and the transmission line is sealingly connected with the through hole.An infrared temperature measuring instrument is fixed on the inner side of the sealed bin.The mine-used alarm device can inhibit the occurrence of sparks in advance before the sparks occur, high-concentration nitrogen gas is injected into the sealed bin, heat generated at a joint is absorbed, and the safety of equipment use is improved.

This invention discloses a method and apparatus for detecting impact hazard zones in a longwall mining face based on direct current resistivity. The method includes: setting up a data measurement device in the impact hazard zone of the longwall mining face, including electrodes, measuring lines, and a measurement host; the electrodes are connected sequentially by measuring lines, and the ends of the measuring lines are connected to the measurement host; after selecting the observation device type, the measurement host emits current outward using the power supply electrodes, and the measuring electrodes receive the current emitted by the power supply electrodes, forming a covered measurement range through the emission and reception of current; the measurement host calculates the apparent resistivity distribution characteristic data within the measurement range based on the current differences received by the measuring electrodes; the apparent resistivity distribution characteristic data within the measurement range is processed according to a three-dimensional resistivity inversion algorithm to obtain the three-dimensional apparent resistivity distribution result within the measurement range; and the impact hazard level within the impact hazard zone of the longwall mining face is determined based on the three-dimensional apparent resistivity distribution result.

A motor vehicle includes an active chassis and a body, wherein the chassis can be actuated to control a distance between the body and the ground, and a method for controlling such a motor vehicle includes determining a driver-controlled actuation of the chassis in order to deflect a chassis clearance at the body of the motor vehicle from a neutral position, determining a geographical candidate position of the motor vehicle, determining a predetermined number of additional candidate positions at which corresponding driver-controlled actuations of the chassis have been carried out, wherein the candidate positions are located in an area of a predetermined size, and determining a hazard zone, wherein the hazard zone includes the candidate positions.