1057results about How to "Avoid collision" patented technology

The invention provides an Internet of Vehicles key information classification early warning method and a vehicle-mounted device. The Internet of Vehicles key information classification early warning method comprises the steps: acquiring Internet of Vehicles information of a target vehicle; determining current driving state information of the target vehicle according to the Internet of Vehicles information; and determining the type of information sent to the target vehicle according to the driving state information. According to the invention, the information with different emergency degrees can be sent to the user according to the current driving state information, multi-channel grading early warning is realized according to the information type, and the effects of assisting driving, promoting safety and improving user experience are achieved.

The invention discloses a dynamic obstacle avoidance method and system for a substation inspection robot. The position of the robot is positioned based on laser point cloud data, and static and dynamic obstacle features are extracted at the same time. An environment association graph is constructed through perception information in the advancing process, and feature information of each node serves as an attribute of the environment association graph; calculating the distance, the relative speed and the relative angle between the edge weights of the nodes according to the nodes; on the basis of the environment association graph, aggregating all-graph obstacle node information to generate real-time feature representation for robot nodes, and correcting a calculation mode of attention weight according to edge weight between the nodes; and finally outputting a real-time feature vector of the robot node. And defining a reinforcement learning framework and executing path planning. According to the invention, through combination of GAT and dynamic planning, efficient obstacle avoidance and path planning of the robot in a substation environment are realized, and the decision and execution capability of the robot in a dynamic complex scene can be improved.

The present application is suitable for pile foundation positioning technical field, provide a kind of pile foundation positioning device, including base, the mounting bracket is fixed on the base, the base is provided with avoiding hole, further include: guide sliding block, main shaft, helical blade, mounting plate, guide shaft, mounting block, drive assembly, reciprocating mechanism, second transmission assembly and disengaging mechanism.Reciprocating mechanism is driven mounting block to reciprocate up and down on guide shaft by the way of guide sliding block moves in guide chute, further make main shaft and helical blade reciprocate up and down while moving down, it is convenient to discharge the soil drilled by helical blade, improve the efficiency of pit positioning, when main shaft is contacted with rock, disengaging mechanism removes the transmission connection of main shaft and first motor and stops mounting block to reciprocate up and down on guide shaft, make mounting block move upwards along guide shaft, main shaft has no downward thrust at this time, to avoid the instant collision of helical blade and rock when main shaft is contacted with rock.

In order to propose an improved parking system which enables a parking process for cableway vehicles in a parking area at a cableway station to be carried out as simply and quickly as possible, in the parking system there is provided a transfer device for transferring cableway vehicles from an input track onto at least two parking tracks, the transfer device having a displacement device which is displaceable along a fixed guide device between a first transfer position and a second transfer position, the displacement device having a first track section and a second track section, in the first transfer position of the displacement device a cableway vehicle is displaceable from the first track section onto a first parking track and a cableway vehicle is displaceable from the input track onto the second track, and in the second transfer position of the displacement device a cableway vehicle is displaceable from the input track onto the first track section and a cableway vehicle is displaceable from the second track section onto a second parking track.

The invention discloses a multi-unmanned aerial vehicle cooperative search method based on dynamic region division and a multi-constraint virtual force field, and aims to solve the problems of low search efficiency, unbalanced load, difficulty in guaranteeing the motion safety of multiple unmanned aerial vehicles and the like in multi-unmanned aerial vehicle coverage search. Firstly, a task area, an unmanned aerial vehicle kinematics model and a sensor sensing model are constructed; then, dynamic region division is carried out based on a weighted Voronoi diagram, the search progress of the unmanned aerial vehicle, the responsibility region area and the obstacle distribution condition are comprehensively considered, and self-adaptive balancing of task loads is achieved; and selecting a target point based on a utility function, and finally designing a multi-constraint virtual force field control method consisting of target attraction, obstacle avoidance force, regional barrier force and exploration force, generating an expected speed meeting speed constraint and obstacle avoidance requirements, and realizing stable and efficient coverage search. The result shows that the multi-machine collaborative search efficiency can be effectively improved, and the method is suitable for disaster search, routing inspection monitoring, autonomous detection in a complex environment and other scenes.

The application provides an ADAS controller test method, device, terminal and storage medium. The method comprises the following steps: based on setting environment information and setting target information, generating simulation target information required by a target test scene of a to-be-tested ADAS controller installed on a real vehicle; sending the simulation target information to each vehicle body CAN interface of the real vehicle, and receiving control information of the to-be-tested ADAS controller updated based on the simulation target information and / or first vehicle state information of the real vehicle; and generating a test report of the to-be-tested ADAS controller about the target test scene according to the control information and / or the first vehicle state information. The application can avoid collision caused by extreme working conditions, reduce collision risk, reduce test cost and improve test efficiency when testing the real vehicle function of the ADAS controller.

The application provides an unmanned earthwork process simulation method and system based on a dynamic three-dimensional model, basic terrain data of a work area, earthwork setting parameters and unmanned equipment attribute parameters are collected; an initial three-dimensional terrain model is constructed according to the basic terrain data, and the earthwork setting parameters and the unmanned equipment attribute parameters are mapped into the initial three-dimensional terrain model; real-time operation data of the unmanned equipment and real-time environment state data of the work area are periodically acquired, the initial three-dimensional terrain model is corrected, and a dynamic three-dimensional work model is generated; the dynamic three-dimensional work model is used to execute the unmanned earthwork process simulation, work planning and monitoring data are generated; the simulation result is output, whether the simulation result meets a preset work requirement standard is judged, when the simulation result does not meet the preset work requirement standard, the work parameters are adjusted and a re-simulation process is triggered.

The utility model discloses a kind of high-efficiency oscillation mechanism of full-automatic blood culture instrument, it is related to medical supplies technical field.The utility model includes oscillation component, the left of bottom plate is equipped with motor, the outer peripheral wall of round plate is uniformly fixed with boss, the right of round plate is equipped with arc spring, spring is close to the end plate of round plate one end with mounting plate fixed, upper boss is symmetrically fixed in the along edge of placing plate lower wall, the clockwise direction of two upper bosses is equipped with lower boss with bottom plate fixed;Fixed component includes the moving plate being equipped in the upper of limit disc, the lower wall of moving plate is fixed with elastic cotton.The utility model is placed in the culture bottle of placing plate by spring and boss under rotation state and realizes reciprocating rotation to realize oscillation, and by the cooperation of upper boss and lower boss, culture bottle reciprocating up and down movement further improves oscillation effect, realizes the efficient oscillation of culture bottle, by elastic cotton to culture bottle extrusion fixed, improve the stability of culture bottle when oscillating.

The utility model relates to the technical field of medical instruments, and discloses a multifunctional chest bottle trolley convenient to adjust, which comprises a chest bottle trolley main body, a universal pulley yoke and a locker main body, an adjusting mechanism is arranged on the chest bottle trolley main body, an auxiliary mechanism is arranged on the adjusting mechanism, the adjusting mechanism comprises a contraction groove, and the contraction groove is provided with a telescopic rod. The contraction groove is formed in the inner wall of the right side of the chest bottle trolley body, an adjusting frame is slidably connected to the inner wall of the bottom of the contraction groove, an adjusting hole is formed in the outer wall of the front side of the adjusting frame, a shifting piece is slidably connected to the inner wall of the front side of the chest bottle trolley body, and an inserting rod is fixedly connected to the outer wall of the rear side of the shifting piece; the outer wall of the rear side of the shifting piece is fixedly connected with a compression spring. According to the chest bottle trolley, the containing groove, the adjusting hole and other structures are arranged, the inner diameter space of the chest bottle trolley and the height of the supporting rod are adjusted according to requirements, so that chest bottles are more stable and easy to fix, and a patient feels more comfortable. The chest bottle conveying device is not limited to conveying of chest bottles, but also can be used for arranging and storing other landing articles.

The utility model relates to office chair technical field proposes a multi -purpose office chair, including support, the support top fixedly connected with the cushion, the bottom fixedly connected with the receiving board of cushion, the inside slide coupling of receiving board has the drawer, the utility model discloses through setting up the drawer, the drawer is divided into several groups by the baffle, can store different types of files or other tools in the inside of drawer, under the action of baffle, can fix the drawer in the inside of receiving board, again because baffle is triangular structure design, when the drawer slides, will be through the slope to baffle and exert the downward thrust, make the vertical pole along the bottom plate and move downward, and baffle drops horizontally immediately, will not hinder the normal sliding of drawer, through setting up the placing plate, can rotate to with support lateral parallel state of placing plate, through the nut and fix the placing plate, some temporary articles can be placed on the placing plate at the time, the skid -proof pad of setting can play certain antiskid effect.

This utility model relates to the field of ceramsite processing and discloses a jaw crusher-screening linked ceramsite raw material pretreatment device, including a base. A stationary jaw plate is fixedly connected to the left side of the top of the base, and a feed hopper is fixedly installed on the top of the stationary jaw plate. A flywheel is installed on the base, a drive motor is installed on the right side of the base frame, and a movable jaw plate is movably installed on the base frame. The movable jaw plate is fixedly connected to the flywheel at an eccentric position, and an elbow plate body is movably hinged to the left side of the movable jaw plate. In use, the ceramsite raw material can be fed into the jaw crusher through the feed hopper. During the feeding process, a fan can suck the dust inside the ceramsite raw material into the collection box through the dust suction port. The dust collection mesh inside the collection box can collect the dust. During the feeding process, the baffle and mesh plate can prevent the ceramsite raw material from impacting or blocking the dust suction port, thus solving the problem of large amounts of dust during crushing.

The utility model discloses a kind of circular collimator mounting structures, it is related to medical instrument technical field, and circular collimator mounting structure, comprising: collimating cone cylinder, is provided with the first connecting part for fixedly connecting the circular collimator;Accessory rack, is provided with the second connecting part for fixedly connecting the medical accelerator and the third connecting part for cooperating installation the collimating cone cylinder;Wherein, the collimating cone cylinder includes information component, for storing the information corresponding to the collimating cone cylinder and / or the circular collimator, the accessory rack includes information identification component, for identifying the information of the information component, and send to the medical accelerator;The present circular collimator mounting structure, by respectively integrating information component and information identification component in collimating cone cylinder and accessory rack, reduce the risk of grating and collimator collision and the risk of circular collimator replacement error.

This invention relates to a navigation method for underwater unmanned vehicles (UUVs), comprising the following steps: acquiring data from multiple sensors and performing spatiotemporal synchronization, feature extraction, and data fusion preprocessing; defining the underwater operating area as a directed graph, with edge weights determined based on terrain complexity, obstacle risk, and water flow influence; based on the directed graph, employing an improved A* algorithm for global path planning and a fast exploratory random tree algorithm for local path planning and dynamic obstacle avoidance; assessing the environmental state considering aquatic environmental parameters, water flow characteristics, and topographic changes; and adjusting the navigation strategy using a deep reinforcement learning algorithm, with the navigation strategy adjustment objective function as the optimization goal, based on the environmental assessment results and the UUV's own state. Compared with existing technologies, this invention offers advantages such as improved navigation accuracy, reliability, and adaptability of underwater UUVs in complex underwater environments.

The utility model discloses a pad printing equipment has mutually orthogonal first direction, second direction and third direction, pad printing equipment includes: the acceptance conveyer, pad printing conveying line is equipped with two, two pad printing conveying lines are arranged respectively in the both sides of acceptance conveyer, pad printing conveying line includes: pad printing conveyer, pad printing machine, positioning mechanism sets up in pad printing position, it is used for to the product and is in the center positioning, and make the product temporarily stay in pad printing position, pad printing equipment still includes: the shunt mechanism, and the shunt mechanism sets up in the top of the end of acceptance conveyer, the shunt mechanism includes: the shunt guide piece, sets up in the top of acceptance conveyer, the shunt drive part is used for driving the reciprocal swing of shunt guide piece to make a plurality of products shunt to two pad printing conveyer conveying. This scheme can effectively avoid the trouble of the beat adjustment of upstream equipment when adding pad printing equipment or replacing original pad printing equipment, thereby can reduce production line control difficulty, reduce system failure risk.

The utility model belongs to photovoltaic module production equipment field, specifically discloses a kind of slide-out platform for photovoltaic module production, including slide-out platform main body, two mounting plates, several guide mechanisms and adjusting mechanism.Slide-out platform main body is equipped with two side walls and linear transmission mechanism, and mounting plate is movably connected in main body interior, and guide mechanism is fixedly connected in mounting plate inner side and has rebound guide piece, and adjusting mechanism is used to adjust mounting plate spacing.Guide mechanism is composed of connecting seat, rotating shaft, guide plate, cylinder and torsional spring, and it can automatically correct profile, avoid collision.The utility model realizes the automatic correction function of aluminium frame profile by the ingenious cooperation between right-angle seat, rotating shaft, guide plate, cylinder and torsional spring, can effectively avoid the collision of profile and slide-out platform side wall, to improve conveying efficiency, protect profile and equipment from damage, reduce maintenance cost.

The utility model discloses a spline shaft machining and quenching device and relates to the technical field of quenching equipment. The quenching device structurally comprises a quenching inductor connected with an induction heating power supply, a workpiece clamping device, a water bath box and a spray cooling device, the water bath box comprises a rectangular box body with an upper opening; a partition plate extending upwards is fixed to the upper end face of one side wall of the rectangular box. According to the utility model, the workpiece clamping device adopts the upper pointed cone and the lower pointed cone which move up and down and is matched with the guide post and the screw rod motor, so that the coaxiality and the stability of the spline shaft in the quenching process are ensured; meanwhile, the upper pointed cone is driven by the driving motor and the belt pulley group to drive the spline shaft to rotate, so that the heating uniformity of the spline in the quenching inductor is guaranteed; according to the spray cooling device, a circular ring pipe is matched with a circle of spray heads pointing to the inner side of a coil of the quenching inductor, so that the quenched spline is uniformly and forcibly cooled, the high-temperature risk of the quenching inductor is reduced, and the high efficiency and the stability of the whole quenching process are improved.

The utility model relates to the field of crystal bar flaw piece recovery, in particular to a crystal bar flaw piece material taking mechanism and a crystal bar processing system.The crystal bar flaw piece material taking mechanism comprises two material taking modules which are arranged in a bilateral symmetry mode, each material taking module comprises a supporting frame and a material receiving unit which are arranged at the bottom, a supporting plate is arranged on each supporting frame, and the two material taking modules are symmetrical; the supporting plate is vertically arranged, and the top end of the supporting plate is a sharp end and can be in direct contact with a crystal bar; a first reference surface and a second reference surface which are perpendicular to each other are established by taking the central axis of the crystal bar as a reference, the crystal bar subjected to squaring comprises a square bar and crystal bar edge pieces on the left side and the right side, the distance between the gravity center of each crystal bar edge piece and the first reference surface is L1, the distance between the tip end of each crystal bar edge piece and the first reference surface is L2, and L1 is larger than L2; and the material receiving unit is obliquely arranged and is used for receiving the poured crystal bar edge skin. Cost and maintenance difficulty can be reduced, stability is guaranteed, edge skins are prevented from being collided in the placing process, and the edge breakage phenomenon is reduced.

The utility model belongs to the technical field of chemical equipment, and discloses a low-temperature dangerous chemical reagent storage cabinet. A low-temperature dangerous chemical reagent storage cabinet comprises a storage cabinet body, an equipment placement cabinet, a support, a cabinet door and a reagent placement table, the storage cabinet body is in a hollow shape with an opening in one longitudinal side, and the reagent placement table can be detachably installed in the storage cabinet body; the equipment placing cabinet is arranged below the storage cabinet body in a connected mode, cooling equipment can be placed in the equipment placing cabinet, and the support is arranged below the equipment placing cabinet in a connected mode. Through cooperative work of the heat absorber and the closed-loop water cooling system, rapid cooling is achieved, the low temperature in the cavity is maintained, the cooling device is suitable for chemical reagents sensitive to the temperature, the damping device effectively absorbs vibration of the cooling device, and collision between reagent bottles caused by vibration generated when the cooling device works is avoided.

This invention discloses a deflection device for a mining cart pusher, relating to the field of mining machinery and equipment technology. It includes a pusher frame, a pusher body, and a mine car. The pusher body is located inside the pusher frame, and the mine car is mounted on top of the pusher body. A mounting frame is fixedly installed on one side of the mine car, and a dual-shaft motor is fixedly installed inside the mounting frame. Screws are fixedly installed on the output ends of the dual-shaft motors, and fixing plates are threaded onto the surfaces of the two screws. Mounting plates are located on one side of each of the two fixing plates, and multiple mounting plates penetrate both sides of the mounting frame, with each mounting plate slidably connected to the sides of the mounting frame. This invention can deflect the mine car, preventing collisions or derailment between the mine car and the pusher frame, while also increasing the stability of the mine car, thus improving the practicality and safety of the mining cart pusher.

The invention relates to an intelligent robot grabbing method and device, electronic equipment and a storage medium. The method can comprise the following steps: acquiring multi-modal sensing information corresponding to a target capture scene; based on a multi-modal semantic analysis model, performing semantic analysis processing on the multi-modal perception information, and outputting semantic association information corresponding to the to-be-grabbed object; according to the semantic association information, determining a target grabbed object, a recommended grabbed point corresponding to the target grabbed object and a recommended grabbed strategy; on the basis of a grabbing pose prediction network, pose prediction processing is conducted on the recommended grabbing points, and robot grabbing pose information is obtained; according to the recommended grabbing strategy and the robot grabbing pose information, the target grabbing object is grabbed, and grabbing state parameters are obtained; and on the basis of the grabbing state parameters, the grabbing pose information of the robot is adjusted. According to the technical scheme provided by the invention, objects can be effectively prevented from sliding off, being damaged or colliding, and the intelligent level and the grabbing efficiency of the robot are improved.

This utility model discloses an electric kettle, belonging to the category of household appliances, which solves the problem of manually opened kettle lids accidentally closing due to kettle body shaking. The technical solution mainly includes a kettle body and a kettle lid. The kettle lid is rotatably connected to the kettle body via a torsion spring-free method. The kettle body has two baffles, forming a movement space between the two baffles for the lid to move. Along the movement trajectory of the lid being manually opened, the baffles and the lid interfere with each other through friction. One of the kettle lid and kettle body has a limiting rib, and the other has a limiting groove. The limiting rib engages with the limiting groove after the lid is fully opened, keeping the lid in the fully opened state. This utility model mainly ensures that the kettle lid can remain in the fully opened state, allowing users to fill the kettle with water with one hand, improving user convenience.

The utility model discloses a kind of damping device of unmanned plane rotating shaft, it is related to unmanned plane technical field, including: unmanned plane body and damping protection piece, unmanned plane body has rotor support, the end of rotor support is equipped with rotor drive structure, the end of rotor support is located below rotor drive structure and is equipped with through mounting hole;Damping protection piece is connected in the outside of rotor drive structure by mounting rod through mounting hole, the connecting place of mounting rod and mounting hole has elastic damping part, the outside of mounting rod is formed with damping and protection structure.The utility model sets up mounting hole by being arranged at the end of rotor support, connects damping protection piece in the outside of rotor drive structure, and sets up elastic damping part at the connecting place of mounting rod and mounting hole, can effectively buffer the vibration and impact of rotor rotating shaft, improve the flight stability and reliability of unmanned plane under complex environment.

This invention discloses a testing device and method for tensile deformation of fiber-reinforced cementitious materials, belonging to the field of engineering material testing technology. The testing device mainly includes three parts: a support frame, a lever system, and a specimen mounting system. The main steps of the testing method include: lifting the lever to unload; installing the specimen mounting system, slowly releasing the lever and finely adjusting the position of the tensile specimen to reduce eccentricity and achieve preloading; repeatedly lifting and unloading the lever, and finely adjusting the centering tensile clamp and the tensile specimen; installing the displacement sensor and zeroing it in the unloaded state; adjusting the weight of the lever according to the real-time display value of the force sensor to complete the suspension and precise loading of the tensile specimen. This method applies tensile force to the cement-based composite material through the lever mechanism and performs arbitrary crack propagation evaluation based on the micro-cracks in the cement-based material using digital image processing, which can quantitatively characterize the creep deformation and crack propagation process of cement-based composite materials under continuous tensile load.

The application relates to the technical field of building construction, and discloses a building construction platform which comprises a main body, a limiting structure, two first locking structures, a supporting structure, two threaded rods, two connecting ropes and a transport vehicle. The inside of the main body is provided with a transport structure, the limiting structure and the transport structure are provided with a second transmission structure, the second transmission structure and the threaded rods are connected with each other through a first transmission structure, the first transmission structure and the limiting structure are connected with each other through a first locking structure, the inside of the limiting structure is provided with a second locking structure close to the first transmission structure and used for fixation. The material plate can be moved into the inside of the limiting structure through the transport vehicle. When the material plate is moved into the inside of the unloading platform, the position of the material plate is limited through the limiting structure, the bearing area of the material plate is greatly improved, and the transportation efficiency is improved.

The utility model provides a segmented cutting forming tool of tricholoma matsutake. The segmented cutting forming tool of tricholoma matsutake includes: the workbench that sets up the inclined groove, the fixed plate is fixedly installed in the inclined groove, the cutting frame is hinged on the fixed plate, and the bottom rotation of cutting frame is installed with the winding shaft, the protective cover is fixedly installed on the cutting frame and is connected with the winding shaft rotation, the torsional spring is fixedly installed in the protective cover and is connected with the winding shaft, the cutting line one end is coiled on the winding shaft, the movable plate is slidably installed on the cutting frame, and the movable plate is fixedly connected with the other end of cutting line. The segmented cutting forming tool of tricholoma matsutake has the advantages that the efficiency of segmented cutting of tricholoma matsutake can be improved, and the production needs are met.

The utility model discloses a compacting and drying device for paperboard production, which comprises a vertical seat and a pressing plate, a compacting groove is arranged on the vertical seat, the pressing plate is positioned in the compacting groove, and heating resistors are respectively arranged on the pressing plate and the vertical seat so that the pressing plate and the vertical seat can heat; the vertical seat and the pressing plate are vertically placed, and when the pressing plate is not in contact with the bottom of the compaction groove, the side wall of the top of the compaction groove is in an open state; the paperboard drying device has the advantages that collision between a mechanical arm or a crane and the drying device is avoided, normal compacting and drying of paperboards are guaranteed, and paperboard feeding and discharging are facilitated.

The application provides a transmission rope controller, which comprises a pulley block and a woven rope arranged on the pulley block, the pulley block comprises a fixing frame, a first connecting shaft and two pulleys, the fixing frame is used for being fixed to a tower body, a driving mechanism is arranged on the fixing frame, the driving mechanism has a rotating part, the first connecting shaft is rotationally connected to the fixing frame through a first rotating shaft, the axial direction of the first rotating shaft is perpendicular to the axial direction of the first connecting shaft, and the first rotating shaft is coaxially connected with the rotating part, the two pulleys are rotationally connected to opposite ends of the first connecting shaft, the axial direction of the pulleys is parallel to the axial direction of the first rotating shaft, and the transmission rope controller further comprises a pull rope assembly arranged on a traction section of the woven rope, and the pull rope assembly has a limiting hole for the tail section of the woven rope to penetrate. The transmission rope controller provided by the application adjusts the spacing between the traction section and the tail section through the driving mechanism, so that the safety accidents caused by tool falling are prevented.

The utility model discloses an automobile fuel tank high anti-corrosion antibacterial galvanizing device which comprises a processing box, a main shaft which is transversely arranged and can rotate is arranged in the processing box, and a plurality of first fixing columns and second fixing columns which correspond to each other are evenly distributed on the side walls of the two ends of the main shaft respectively. A hanging rod is arranged at the end of each first fixing column and the end of each second fixing column which correspond to each other, a plurality of hooks which are used for hanging oil tanks and are arranged at equal intervals are arranged on the hanging rods, and fixing grooves matched with the hanging rods are formed in the ends of the first fixing columns and the ends of the second fixing columns. And a limiting piece which is used for limiting the hanging rod in the radial direction and can stretch and retract towards the inner wall of the fixing groove is arranged in the fixing groove. The oil tank feeding and discharging device has the advantages that collision of the oil tank caused by sliding of the oil tank during feeding and discharging can be avoided, stability and reliability during feeding and discharging of the oil tank are guaranteed, feeding efficiency is improved, and production stability and machining quality are guaranteed.

The application provides a grinding machine plate fixing device for fixing a plate on an electromagnetic chuck of a grinding machine, which comprises a base plate, a shell arranged on the base plate, a lifting frame arranged in the shell, an elastic member arranged between the lifting frame and the base plate, two groups of installation rails arranged on the base plate and capable of sliding relative to each other, two groups of clamping plates arranged opposite to each other on the installation rails, clamping grooves arranged on the clamping plates, and two groups of driving mechanisms arranged on the lifting frame and connected with the two groups of installation rails, so as to drive the installation rails to open and close during the lifting of the lifting frame. The device can control the lifting of the lifting frame under the conditions of power-off and power-on of the electromagnetic chuck, and drive the two groups of installation rails to move in opposite directions and open and close under the action of the driving mechanisms, so that the plate is quickly fixed or released, and the plate does not need to be manually fixed and installed, thereby effectively improving the working efficiency of grinding.

The embodiment of the application provides a straight-arm type aerial work platform, and relates to the technical field of engineering machinery. At least comprising: a vehicle chassis, an arm support, a rotating mechanism, an electronic control unit and a driving unit; wherein a middle position detection switch is arranged between the vehicle chassis and the rotating mechanism; the middle position detection switch is used to determine the driving direction of the straight-arm type aerial work platform; a distance measuring sensor is arranged at the end of the rotating mechanism connected with the arm support; the distance measuring sensor is used to determine the distance between the straight-arm type aerial work platform and an obstacle; the electronic control unit is used to receive the switch signal of the middle position detection switch, the distance signal of the distance measuring sensor and the driving state of the driving unit; and to control the driving of the straight-arm type aerial work platform according to the generated vehicle control instruction; the vehicle control instruction is generated according to the switch signal, the distance signal and the driving state. The safety of the straight-arm type aerial work platform during transportation can be ensured, and collision with a container can be avoided.