35results about How to "Collision will not" patented technology

The invention discloses an obstacle processing method for a sweeping robot, the sweeping robot, an electronic device and a computer readable storage medium. The method comprises the following steps: when a target obstacle is detected at a designated position by utilizing a human body proximity sensor, the collision treatment is not carried out and the target obstacle is marked with a designated identifier at the corresponding designated position in an environment map; when a preset condition is met, the human body proximity sensor is used for detecting whether the target obstacle still existsat the designated position marked with the designated identifier or not in the environment map; if the target obstacle does not exist anymore, the corresponding position is cleaned, and the corresponding designated identifier in the environment map is removed. According to the technical scheme, the human body proximity sensor can detect a user in time, so that the user can be prevented from beingdisturstratum by collision. Meanwhile, the human body proximity sensor can detect whether the target obstacle exists or not again. In this way, when the target obstacle does not exist anymore, the cleaning operation is conducted. As a result, the cleaning is guaranteed in place, and the use experience of the user is enhanced.

The invention discloses an unmanned aerial vehicle trajectory generation method based on a flight corridor and a Bezier curve, and belongs to the field of robot motion planning. According to the trajectory generation method, a robot can meet the motion constraint of continuous acceleration on the premise that obstacle avoidance is guaranteed, and the average speed is high. The method comprises thefollowing specific steps: obtaining surrounding map point cloud information through a depth camera sensor / laser radar sensor or global known information; constructing a rasterized obstacle map; planning a collision-free and optimal path by using an A* algorithm; generating a collision-free flight corridor capable of moving by a robot based on the A* planned path; and finally, generating a Beziercurve in the flight corridor for the robot to move. A series of nodes on a safety path are converted into a series of convex geometries (corridor blocks) in a mode of generating a safety corridor, sothat the information amount is greatly increased, and the modeling accuracy is ensured.

The invention relates to an improved demountable tanker carrier. The improved demountable tanker carrier comprises a chassis, a lifting mechanism, a hydraulic cylinder and a ladder stand, wherein a damping locking protective device is mounted on the chassis and comprises a damping component and a locking device; and the locking device is in locking connection with the lifting mechanism which is in a folding state, and the damping component is in damping connection with the lifting mechanism which is in the folding state. In the invention, the ladder stand is arranged on the chassis, the widthof the demountable tanker carrier in running meets the national standard requirement due to the folded ladder stand; when the improved demountable tanker carrier is in use, the ladder stand can be unfolded so that personnel can climb conveniently; meanwhile, the damping locking protective device is also arranged on the chassis, the damping component is in contact with the lifting mechanism so as to provide the damping protection for the lifting mechanism and the tanker carrier; and a locking pin shaft is inserted in the pin hole of the lifting mechanism to lock the lifting mechanism so as to prevent the lifting mechanism from pitching caused by shake in a transportation process.

The invention discloses a rigid rolling stone collision-prevention device for a bridge pier. The device comprises a concrete structure (1), an arc-shaped track (2), blocking bars (3) and a section steel guardrail structure (4), wherein the arc-shaped track (2) is arranged on one side, on which rolling stones move, of the concrete structure (1), and the arc-shaped surface of the track is tangential to a steep mountain body (6); the blocking bars (3) are arranged on the surface of the arc-shaped track (2), and are used for preventing the rolling stones to move; the section steel guardrail structure (4) is arranged on the top of the concrete structure (1), and is parallel to the width direction of the concrete structure (1). The device is generally built in front of a bridge pier needing to be protected along the movement locus of rolling stones, the motion energy of the rolling stones is reduced rapidly by means of buffering of different collision, consumption of energy by kinetic-potential conversion, consumption of energy by local damages to materials and energy absorption by flexible deformation of steel, and collision of the rolling stones to the bridge pier is prevented.

The invention discloses a method for installation of a 3 MW wind generating set. The method includes the steps that a main crane is selected; a tower is installed; a cabin is installed; an impeller is installed; vane bolts are tightened through torque; the tower, the cabin and impeller bolts are fastened through torque; and cables are laid and installed. Main crane selection includes the steps that a 630 t crawler belt crane is adopted as the main crane, a working condition of tower type superlift with a 72m main arm and a 36m auxiliary arm is adopted, the auxiliary arm is hinged to the top end of the main arm, and an arm rod of the main crane is formed in a combined mode; and when the cabin is lifted, the main arm, the auxiliary arm and the cabin ascend in a trapezoid shape, and therefore the smallest distance between the cabin and the arm rod is larger than or equal to 5m. By means of the method, the cabin can be prevented from colliding with the arm rod, the impeller and the cabin are in stable butt joint, and the vane bolts are tightened. Construction safety is better guaranteed, the construction progress is accelerated, and construction cost is reduced.

This invention provides a releasable bottom end stop for slide fastener which allows an insert pin thereof to be operated smoothly on being inserted into a semiautomatic / automatic stop slider. A slope for raising a locking pawl of an automatic or a semi-automatic stop mechanism provided on a slider when the insert pin is inserted into an inverse-opening type slider or an ordinary slider is provided obliquely so as to extend from a front end of the surface of an insert pin to a proximal end thereof. Additionally, a concave portion whose inlet is inclined for holding the locking pawl is provided over this slope. The inverse-opening slider is fitted in a stringer on a box pin side and another slider is also fitted such that it comes into contact with a top of the inverse-opening slider. If the insert pin disposed on another stringer is inserted with this condition, the locking pawl is raised by the slope so that the insert pin can be inserted smoothly and held in a stable condition.

In a texture curing machine for the subsequent treatment of freshly produced concrete layers, in particular concrete pavements, of a specified width, comprising a machine frame supported by ground-engaging units, where working devices are attached at the machine frame in a stationary fashion or movable transverse to the working direction, and the working devices comprise texturing devices for applying a texture into the not yet hardened surface of the concrete layer and / or spraying devices for discharging a curing agent, said working devices acting on the concrete layer in longitudinal direction or in transverse direction to the working direction, it is provided for the following features to be achieved: that the working devices for applying either a texture or a curing agent comprise both a working device acting in longitudinal direction and stationary in operation and a working device movable to and fro across the width of the concrete layer, where each is alternately transferable from a resting position into an operating position in which the working devices do not collide with one another.

The invention belongs to the field of safety inspection equipment, and discloses a corner door structure, which comprises a door body, wherein a plurality of hinges for mounting the door body are arranged on one vertical side of the door body, and door locks are arranged on the other vertical side of the door body; a door plate of the door body is formed by bending a metal sheet; corners are formed on the horizontal section of the door plate. According to the corner door structure, the door body with the corners is adopted, so that the range at the door body after the door body is opened is wider, and convenience is brought to operation; the door body is provided with the corners, so that a smaller space is required in an opening process, and the door body can be conveniently arranged on a part with a relatively narrow space, and difficultly collides with other equipment; limiters are arranged between the door body and an upright post, so that the door body can further be prevented from excessively rotating and colliding with an outer equipment cover; the door plate is formed by bending a steel plate, a plurality of reinforcing ribs are arranged on the inner side of the door plate, and corner reinforcing ribs are further arranged at the corners, so that the rigidity of the door body is ensured from every aspect; a handle can be hidden, and can be used on both inner and outer sides, and after the handle is hidden, influence on the attractive appearance of the door body is eliminated, and collision with the outside is avoided.

The invention discloses a wall collision prevention method of a double-flight refueling wind tunnel test supporting device. The wall collision prevention method comprises the steps: building a positive motion equation of a supporting device, and determining the joint space of each joint in the supporting device; then selecting a random value set in the joint space, wherein the random value set comprises a plurality of random values in one-to-one correspondence with the joints, inputting the random value set into the positive motion equation, and calculating the position of an end execution point of the supporting device defined by the random value set; and repeating the steps of defining the random value set and calculating the position of the end execution point for multiple times so as to obtain the position of the end execution point under multiple conditions; and drawing a work space cloud chart according to the positions of all the end execution points; finding out a point of which the position of an end execution point exceeds the position of the wind tunnel space in the work space cloud atlas, deleting the random value set corresponding to the point, and taking the remainingrandom value group as an experimental parameter set, thereby guaranteeing that the end execution point does not collide with the side wall of the wind tunnel theoretically.

The invention discloses a path planning method for a boarding bridge. The path planning method comprises the following steps: acquiring a preset wing anti-collision line; obtaining the positions of acabin door and and airport pickup port, and generating a path connecting the cabin door and the airport pickup port; simulating the process that the airport pickup port moves to the cabin door along the path, and if interference is formed between the wing anti-collision line and an outer contour of the boarding bridge during simulation, at least moving part of the path in front of the engine in the direction far away from the engine, and carrying out simulation again until no interference is formed between the wing anti-collision line and the outer contour of the boarding bridge. When the boarding bridge runs along the finally formed path, the boarding bridge does not collide with the wing anti-collision line and does not collide with aircraft wings or engines.

The invention belongs to the technical field of ships, provides a ship board outer cooler mounting formwork, and further relates to a ship board outer cooler mounting method. The ship board outer cooler mounting formwork comprises a formwork body (1); the formwork body (1) comprises a formwork upper transverse plate (2) and a formwork lower transverse plate (3) which are connected through two formwork vertical rods (4); a plurality of open holes are formed in the formwork upper transverse plate (2), and a connecting pipe (5) is mounted in each upper open hole; and a plurality of open holes areformed in the formwork lower transverse plate (3), and a positioning pipe (6) is arranged in each lower open hole. According to the ship board outer cooler mounting formwork and the ship board outercooler mounting method, a cooler does not need to be frequently dismounted and mounted to be prevented from being collided and then damaged during dismounting and mounting, mounting convenience and accuracy of the cooler are improved effectively, and the problem that requirement for the positioning precision of welding sleeve mounting and fixing stud welding of the board outer cooler is high is solved.

The invention belongs to the field of bus accessories, and particularly relates to a subway lifting ring capable of being rotationally fixed to serve as an advertising board. A sliding sleeve is arranged on a cross rod, a button bolt is arranged on a connector, when a passenger does not need the lifting ring, the lifting ring can be rotated to the upper end of the cross rod to serve as the advertising board, and the possibility that the lifting ring collides with the passenger is reduced; the space of a subway carriage is fully utilized, and the advertising area of the subway is increased; byarranging a permanent magnet block, on one hand, a connecting block and a fixing rod are firm in structure, on the other hand, the lifting ring and the fixing block are fixed to prevent the passengerfrom being collided, and the hanging ring can reset conveniently without colliding the passenger.

The invention discloses a cutter front-loaded round bundled household mowing grass catcher and a method thereof. Existing hay mowers are not suitable for home courtyard lawns. The device of the invention comprises a chassis, a cutter assembly, a drive assembly, a lawn comber frame, a pickup, a collection chamber, a mounting rack and a connecting plate. A cutter motor drives an upper blade to moverelative to a lower blade through a disk and a connecting rod; when the chassis advances or veers, the lawn comber frame lifts grass before the cutting work of the cutter, and then the grass is cut during the movement of the upper blade relative to the lower blade; when the ground changes, an auxiliary wheel always fits the ground, and heights of the lawn comber frame and the cutter keep unchangedrelative to the ground through the mounting rack; when front two wheels rotate, the pickup behind the cutter is driven to rotate such that cut grass scrolls into the collection chamber; and the broken grass which scrolls into the collection chamber is bundled and formed under the action of the round bundling device. By adaptive adjustment of mowing height, neat trimming is ensured by firstly mowing and then trimming, and broken grass is independently processed.

A virtual reality (VR) game security protection system, a virtual reality (VR) game security protection method, and a virtual reality (VR) game, including: a virtual reality display section providing a display screen of a virtual reality game to a user; the user information acquisition part is used for acquiring body characteristic parameters of the user; the image acquisition part is used for acquiring an object position in a user safety area and a real-time position parameter of a user; the user action acquisition part is used for acquiring limb actions needing to be performed by the user within subsequent specific time; the collision judgment part is used for judging whether the limb movement of the user in the subsequent specific time will collide with an object in a user safety area or not; an evasion angle calculation unit that determines an evasion angle of the user; and the user angle adjusting part is used for adjusting the angle of the real-time position of the user, so that the body movement of the user in the subsequent specific time does not collide with the object.

The invention discloses a horizontal bathroom cabinet layer board separation method and a control method and device. Firstly, the relative distance between a stop piece and the plane where the upper surface of a top-layer layer board is located is determined, the stop piece moves to the position where a second-layer layer board is located according to the layer board thickness range, accordingly,the motion of the second-layer layer board in the horizontal separation direction is stopped, the top-layer layer board is horizontally separated from stacked layer boards, and the problem that when the top-layer layer board is horizontally separated from the stacked layer boards, the second-layer layer board moves in the horizontal separation direction is solved.

The present invention relates to the technical field of motherboard testing, in particular to a motherboard testing device, comprising a chassis, a machine cover, a power supply module, a top plate, a board card testing mechanism, a memory bar testing mechanism, and a middle board slidingly connected in the chassis along the Z-axis direction , the bottom plate, the lifting mechanism, the carrier plate slidingly connected to the middle plate along the Y-axis direction, the plate feeding mechanism, the loading module, and the interface testing mechanism. The middle plate is connected to the bottom plate through the lifting mechanism, and the top plate is located above the middle plate and Connected with the machine cover, the carrier board is connected to the middle plate through the board feeding mechanism, and the middle part of the front end of the chassis is provided with a board loading port for the board loading module to slide out; The combination of the memory stick testing mechanism and the interface testing mechanism can automatically test the incoming material of the motherboard, reduce the workload of the operator, and improve the efficiency of the incoming material testing of the motherboard.

The invention discloses a method for installation of a 3 MW wind generating set. The method includes the steps that a main crane is selected; a tower is installed; a cabin is installed; an impeller is installed; vane bolts are tightened through torque; the tower, the cabin and impeller bolts are fastened through torque; and cables are laid and installed. Main crane selection includes the steps that a 630 t crawler belt crane is adopted as the main crane, a working condition of tower type superlift with a 72m main arm and a 36m auxiliary arm is adopted, the auxiliary arm is hinged to the top end of the main arm, and an arm rod of the main crane is formed in a combined mode; and when the cabin is lifted, the main arm, the auxiliary arm and the cabin ascend in a trapezoid shape, and therefore the smallest distance between the cabin and the arm rod is larger than or equal to 5m. By means of the method, the cabin can be prevented from colliding with the arm rod, the impeller and the cabin are in stable butt joint, and the vane bolts are tightened. Construction safety is better guaranteed, the construction progress is accelerated, and construction cost is reduced.

The invention discloses a turnover safety warning mechanism used in a mine. The turnover safety warning mechanism used in the mine comprises a mounting board fixed to the top face of the mine; a pairof hinge supporting lugs are formed on one side of the mounting board; a supporting rod is hinged to the hinge supporting lugs through a first hinged shaft; a torsion spring is inserted on the first hinged shaft in a sleeving mode; a prompt board is installed at the lower end of the supporting rod; a hinge groove is formed in the supporting rod; the lower end of an L-type adjusting rod is hinged in the hinge groove through a second hinged shaft; a connection block is formed at the upper end of the adjusting rod and inserted on a support shaft; the support shaft is inserted into a guide grooveand provided with a sliding block; a lead screw is screwed on the sliding block; one end of the lead screw is connected with a rotary shaft of a drive motor; sinking tables are formed at the positions, on the front side and the rear side of the mounting board, of the bottom face of the mine; and a front trigger is arranged in the sinking table at the front side, and a rear trigger is arranged in the sinking table at the rear side. The turnover safety warning mechanism used in the mine is good in safety prompt effect and can also avoid collision.

The invention discloses an all-in-one machine for combing and lengthening plates. The all-in-one machine comprises a rack, a feeding mechanism arranged on the rack, a front pressing-down moving assembly, a combing-tooth glue spraying assembly, a rear pressing-down fixing assembly and a discharging mechanism. The front downward-pressing moving assembly comprises a moving platform and a front downward-pressing plate, the front downward-pressing plate moves up and down under the action of a front downward-pressing power mechanism, and the moving platform moves front and back under the action of a platform power mechanism; the comb tooth glue spraying assembly comprises a comb tooth head, a front comb tooth cutter group, a rear comb tooth cutter group and a glue spraying mechanism; the rear downward pressing fixing assembly comprises a fixing platform and a rear downward pressing plate, and the rear downward pressing plate moves up and down under the action of a rear downward pressing power mechanism. The device is simple and compact in structure and convenient to operate, conveying of a middle conveying line is omitted, the occupied space is small, comb teeth, glue spraying and lengthening are the same standard, the lengthening quality of plates is guaranteed, the cost of plate raw materials is reduced, the machining efficiency of products is greatly improved, and the labor intensity of workers is reduced.

The invention discloses equipment for separating frozen chicken legs, and belongs to the technical field of broiler production and processing equipment. The technical scheme lies in that the equipmentcomprises a bracket, wherein a first driving mechanism is arranged on the side surface of the bottom of the bracket; a speed reducing mechanism is arranged at the output end of the first driving mechanism; a first transmission mechanism is arranged at the output end of the speed reducing mechanism; a rotating mechanism is arranged at the output end of the first transmission mechanism, penetratesthrough a shaft seat arranged on the bracket and is connected with a separating cylinder; a charging and discharging opening is formed in the separating cylinder; a second driving mechanism is arranged in the separating cylinder; a second transmission mechanism is arranged at the output end of the second driving mechanism; and a stirring mechanism is arranged at the output end of the second transmission mechanism. The equipment disclosed by the invention has the beneficial effects of being ingenious in structure, novel in design, good in separating effects and high in working efficiency, the problem that after freezing, single chicken legs are frozen together and are not liable to separate is successfully solved, and time and cost for manual treatment are reduced; and besides, the whole equipment is simple in manufacturing and low in cost, so that largest return can be obtained through smallest investment.

The invention relates to the technical field of mainboard testing, in particular to a mainboard testing device. The testing machine comprises a case, a machine cover, a power supply module, a top board, a board card testing mechanism, a memory bank testing mechanism, a middle board connected into the case in a sliding mode in the Z-axis direction, a bottom board, a lifting mechanism, a carrier board connected to the middle board in a sliding mode in the Y-axis direction, a board feeding mechanism, a board loading module and an interface testing mechanism, the middle board is connected to the bottom board through a lifting mechanism, the top board is located above the middle board and connected with the machine cover, the carrier board is connected to the middle board through the board conveying mechanism, and a board mounting opening for the board mounting module to slide out is formed in the middle of the front end of the machine box. Through the combination of the lifting mechanism,the board feeding mechanism, the board card testing mechanism, the memory bank testing mechanism and the interface testing mechanism, incoming material testing can be automatically conducted on the mainboard, a large amount of workload of operators can be reduced, and the incoming material testing efficiency of the mainboard can be improved.

The invention discloses an adjustable safety warning device for a mine. The device comprises a mounting plate fixed to the top face of the mine, and a pair of first hinge supporting lugs is formed inthe mounting plate; a supporting rod is hinged to the first hinge supporting lugs through a hinge shaft, and a prompting plate is arranged at the lower end of the supporting rod; a first supporting plate and a second supporting plate are formed on the mounting plate, and a bearing rod is inserted into the first supporting plate; one end of the bearing rod abuts against the inner wall of the secondsupporting plate, an L-shaped connecting plate is formed on the outer wall of the first supporting plate, a baffle is formed on the bearing rod, and a first pressure spring is sleeved with the bearing rod; the two ends of the first pressure spring abut against the baffle and the connecting plate respectively, and the other end of the bearing rod penetrates out of the connecting plate and is connected with a piston rod of an air cylinder; sinking tables are formed in the portions, on the front side and the rear side of the mounting plate, at the bottom face of the mine respectively; the frontsinking table and the rear sinking table are internally provided with a front trigger and a rear trigger respectively. The device is good in safety prompt effect and capable of avoiding collisions.

The present invention relates to the technical field of unmanned aerial vehicles, and discloses a kind of anti-collision device for unmanned aerial vehicles based on non-Newtonian fluid, which comprises shell one and shell two. There is a spring, the internal movable connection of shell one is connected with gear one, the internal fixed connection of shell one is connected with shell three, the internal movable connection of shell three is connected with gear two, the external fixed connection of gear two is connected with connecting plate, and the external movable connection of connecting plate is connected with Non-Newtonian fluid; through the interaction between shell one, pressure plate, spring, gear one, shell three, gear two, connecting plate, and non-Newtonian fluid, the UAV can pass through the structure when it is collided with the outside world. The transmission enables the subsequent anti-collision device to be activated, and the transmission between gear 1 and gear 2 can make the non-Newtonian fluid receive a greater external force, such triggering is more sensitive, which is more suitable for actual conditions.