2289 results about "Lawn mower" patented technology

The invention belongs to the technical field of intelligent equipment fault diagnosis, and particularly relates to a motor fault real-time diagnosis method and system based on LSTM and random forest. The method comprises the steps that a vibration signal, a current signal and a temperature signal of a motor are collected and preprocessed; performing feature engineering, extracting time domain, frequency domain, time-frequency domain and cross-modal correlation features, and determining an optimal static feature subset through a hybrid screening strategy; constructing a hybrid fault prediction model comprising a random forest model and an LSTM sequential network model; fusing prediction results of the two models by adopting a dynamic credibility weighted fusion mechanism; and performing real-time decision and hierarchical feedback control based on a fusion result. According to the method, advantages of multi-source information and the model are fused, the classification precision of the lag type is remarkably improved, real-time fault diagnosis and active protection are realized, the equipment maintenance cost is reduced, and the method is suitable for motor health management of intelligent agricultural equipment such as mowers.

The invention discloses a method for a mowing robot to move along a lawn boundary based on a local grid map, and relates to the field of mowing robot edge navigation movement, and the method comprises the steps: recognizing a target region and an obstacle region through a semantic segmentation algorithm, constructing a dynamically updated local grid map through the combination of improved inverse perspective transformation and depth point cloud information, and carrying out the navigation of the target region and the obstacle region; no physical boundary dependence is realized, the deployment cost is reduced, and the real-time processing efficiency of acquired images can be improved; according to the local grid map, the edge navigation deflection angle is calculated through lawn boundary feature extraction in combination with the position of the robot, precise navigation of the robot along the lawn boundary is achieved, rapid response of dynamic obstacles is supported, and the edge movement precision and operation efficiency of the mowing robot are remarkably improved. The problems that an existing mowing robot is low in edge movement precision and poor in operation efficiency due to the fact that an edge track cannot be decided in real time and calculation efficiency cannot be considered at the same time are solved.

A riding lawn mower, including: a frame; a seat; a walking assembly and a walking motor; a cutting assembly and a driving motor configured to drive the cutting assembly; a first energy storage device configured to supply power to at least one of the walking motor or the driving motor, the first energy storage device detachably mounted to the frame and enabled to supply power to a handheld power tool when detached from the riding lawn mower; and a second energy storage device configured to supply power to at least one of the walking motor or the driving motor; wherein a ratio of a total energy of the second energy storage device to a total energy of the first energy storage device is greater than or equal to 2 and less than or equal to 20.

A mower includes a main machine including a mowing element configured to implement a mowing function of the mower and a chassis configured to accommodate at least part of the mowing element, where the chassis is formed with an airflow channel, and the airflow channel includes a grass discharge port disposed at a rear end of the main machine; and a grass discharge assembly configured to implement a grass discharge function. The grass discharge assembly includes a body configured to guide grass clippings out of the grass discharge port; and a connecting portion configured to connect the grass discharge assembly to the main machine. The body includes a top wall baffle and a side wall baffle, and the top wall baffle and the side wall baffle are connected so that the body is basically in an inverted L shape.

The invention provides an installation position recommendation method of a courtyard intelligent sprinkler and a mower control method, and relates to the technical field of sprinklers. The method comprises the following steps: acquiring information of a vegetation coverage area, a movement limited area and a non-movement limited area based on a courtyard map, and performing quantitative judgment on geometric features of the movement limited area to realize accurate identification of a narrow traffic area; when the recommended installation position is determined, the range of the inner side of the movement limited area is excluded, and meanwhile the effective spraying area which can be covered by the installation position of the sprinkler can be maximized. According to the technical scheme, hindering of installation of the sprinkler on a mower or a user passing path can be avoided, and reasonable distribution of water resources can be guaranteed; meanwhile, in combination with the sprinkling irrigation coverage range and lawn mower path planning, cooperative operation of the courtyard intelligent sprinkling irrigation system and the lawn mower is achieved, and the overall efficiency and the intelligent degree of courtyard automation equipment in the operation process are improved.

The utility model relates to a mowing machine cutter head structure which comprises a cutter head body, the cutter head body comprises a cutter head top wall and a cutter head peripheral wall formed by extending downwards from the edge of the cutter head top wall, and a cutting space is formed by the cutter head top wall and the cutter head peripheral wall; at least one mounting opening is formed in the top wall of the cutter head at intervals, a power driving assembly is arranged in the mounting opening, and a cutting blade is connected to the power driving assembly and located in the cutting space; a grass discharging opening is formed in one side of the peripheral wall of the cutter head, and the axial direction line of the grass discharging opening is located on the tangential direction line of rotation of the cutting blades. The straw discharging device has the effect of improving the straw discharging flow.

The invention relates to a collision detection method and device for a walking motor of a mowing robot. The method comprises the steps of collecting a current value, a speed value and a slope inclination angle of the walking motor of the mowing robot; calculating a current change rate Ax and a speed change quantity Vx; judging whether collision occurs or not; and when the collision is judged to occur, executing a recovery process to restart mowing. The device comprises an acquisition module, a calculation module, a judgment module and an execution module. The invention further relates to electronic equipment and a storage medium. By utilizing the collision detection method and device for the walking motor of the mowing robot, the electronic equipment and the storage medium, the problem that the walking control of the traditional mowing robot usually depends on detecting the current change of the walking motor or a Hall sensor to judge whether slipping or collision occurs or not can be solved; in the prior art, the attitude of the mower or the actual collision force cannot be accurately obtained, frequent shutdown caused by collision is easily misjudged, the operation is interrupted, and the work is difficult to complete; and excessive impact forces damage the lawn or the machine itself.

The utility model discloses a device used for detecting parameters of a mowing robot, comprising a workbench and a mowing robot, the workbench is provided with a test platform, the mowing robot is installed on the test platform, the device also comprises three-axis electrical parameter modules, the two sides of the test platform are both provided with the three-axis electrical parameter modules, and the three-axis electrical parameter modules are connected with the test platform. The three-axis electrical parameter module is used for detecting information of a wheel set and a cutter head of the mowing robot. The wheel set information of the mowing robot can be collected through the self-resetting wheel speed measurement module, the cutter information of the mowing robot can be collected through the photoelectric sensor, and the information can be collected through the PCB main control board.

The utility model discloses intelligent mowing robot test equipment, which comprises a workbench, a button test assembly, two sets of collision test assemblies and a three-axis electrical parameter module, the workbench is provided with a test base, a mowing robot is placed on the test base, the button test assembly is arranged on one side of the test base, and the two sets of collision test assemblies are connected with the three-axis electrical parameter module. The collision testing assemblies are arranged at the front end and the rear end of the testing base respectively, the three-axis electrical parameter module is arranged on the testing base, the button testing assembly is used for testing whether a button of the mowing robot can be normally started or not, and the collision testing assemblies are used for testing the collision function of the mowing robot. The three-axis electrical parameter module is used for testing information of a wheel set and a cutter head of the mowing robot. According to the scheme, the mowing robot is tested in sequence through the button testing assembly, the two collision testing assemblies and the three-axis electrical parameter module, so that the testing efficiency of the mowing robot is effectively improved, and the testing process of the mowing robot is simplified.

The invention discloses a walking type mower, relates to the field of mowers, and solves the problem that an existing walking type mower is difficult to weed deep gullies, the walking type mower comprises a protective shell and a holding rod mounted on the outer side of the protective shell, a mounting disc is mounted at the bottom of the protective shell, and a driving motor is mounted at the top of the mounting disc; a rope disc is arranged at the bottom of the mounting disc, and two grass trimming ropes are arranged on the outer side of the rope disc; the grass trimmer further comprises a rope pressing mechanism used for adjusting the length of the grass trimming rope, the rope pressing mechanism is installed on the outer side of the installation disc, the rope pressing mechanism comprises a pressing ring arranged on the outer side of the rope disc, and the pressing ring can press and contract the length of the grass trimming rope; by means of the rope pressing mechanism, an eccentric wheel can press a pressing ring downwards, the pressing ring abuts against the outer side of a grass trimming rope, the grass trimming rope swings downwards, the length of the grass trimming rope is adjusted, a rope disc can treat weeds in a gully through the grass trimming rope, and therefore the effect of gully weeding is achieved.

A charging coupling for connecting a robotic mower to a charging station, comprising a first charging contact provided on the robotic mower and a second charging contact provided on the charging station. The first charging contact comprising a recess with two side walls substantially perpendicular to a mowing surface of the robotic mower, each side wall is provided with an essentially rectangular resilient metal plate. The second charging contact comprising a protruding part configured to fit in the recess of the first charging contact and has two sides facing the two side walls of the recess of the first charging contact when in contact. Each side of the protruding part is provided with metal plates with its sharp side facing the surface of the resilient metal plates of the first charging contact, when in contact.

The invention discloses a post-disaster city full-coverage detection method based on a heterogeneous unmanned system, and belongs to the technical field of rescue, and the method comprises the steps: taking an unmanned plane and an unmanned vehicle as the heterogeneous unmanned system, and constructing a full-coverage path planning model of the heterogeneous unmanned system; discretizing the full-coverage path planning model of the heterogeneous unmanned system to obtain a discrete optimization model of the full-coverage path planning of the heterogeneous unmanned system; an improved memetic algorithm is adopted to optimize the on-off state of path points in the discrete optimization model, an optimal open point set is obtained, a mower algorithm is adopted to traverse the optimal open point set, and a shortest full-coverage detection path is obtained; and constructing a charging point dynamic adjustment mechanism, and performing full-coverage detection based on the shortest full-coverage detection path and the charging point dynamic adjustment mechanism. According to the method, the global search capability and the convergence speed of the memetic algorithm are effectively improved, a two-way convergence charging point dynamic adjustment strategy is designed, and the charging waiting time is effectively shortened.

A mower includes a chassis, a tractive element coupled to the chassis, a cutting unit coupled to the chassis, the cutting unit including a housing and a cutting element rotatably coupled to the housing, a motor configured to move the cutting element relative to the housing, and a controller operatively coupled to the motor. The controller is configured to receive location data indicating at least one of a position or a travel speed of the mower and vary an operating condition of the cutting unit based on the location data.

The invention relates to a lithium battery mower with an automatic obstacle crossing structure and an obstacle crossing method thereof.The lithium battery mower comprises a fixed rack, the fixed rack is provided with a crawler device used for driving the fixed rack to move forwards, the front end of the fixed rack is provided with a movable rack, and the movable rack is rotationally provided with a first universal wheel; a cutting mechanism used for mowing is arranged on the movable rack, side supports are arranged on the two sides of the fixed rack respectively, and second universal wheels are arranged below the side supports; a guide rail is arranged on the side support, an adjusting sliding block fixed to the movable rack is arranged on the guide rail in a sliding mode, a driving shaft is rotationally arranged on the fixed rack, and the driving shaft is matched with the adjusting sliding block through a first linkage structure. When the mowing machine encounters an obstacle, the front end of the fixed rack and the cutting knife can automatically adjust the posture to be lifted up, stable obstacle crossing is achieved, and the problem that an existing mowing machine cannot actively cross the obstacle, and consequently the working efficiency is low is solved.

A utility cart device is disclosed which is capable of transporting heavy objects. The utility cart comprises a base component that is configured in a rectangular shape with a set of handle bars and a pneumatic tire positioned at each corner. Chucks are provided to keep the device in place. The base component has an open central area sized to retain a large ice chest / cooler and two side, shelf-like areas for retaining additional items. Users load the device and push it with the handle bars, or pull it via securing a cable into the two, spaced-apart D-rings on the front of the device, or tow it via a riding mower, golf cart, ATV or other UTV's with a hitch.

The invention discloses an end-to-end mower operation control method, device and equipment fusing visual and text information, and the method comprises the steps: obtaining the image data of a surrounding environment after a controlled mower is started; performing semantic segmentation on the acquired image data by a segmentation and text generation model to identify a mowing area and an obstacle area in the image, determining an action instruction of a next step according to a distribution state of the obstacle area in the image data, and generating corresponding task text information; transmitting the image data and the task text information to a vision-language model; and extracting visual features by the vision-language model, fusing the visual features with the task text information to obtain fused features, performing path planning through a self-attention mechanism, generating path control parameters, and providing the path control parameters to a controller of the controlled mower. The method has the advantages of being low in implementation cost, low in resource consumption, high in control precision and efficiency, high in environmental adaptability and the like.

Processor control over the state (position, attitude or degree of openness) of discharge gates for mowers provides an electronics package which senses or reckons the position of the discharge gate, and thereby provides users control thereover.

The utility model discloses a hay mower transmission structure and hay mower relates to mechanical transmission structure technical field, including driving shaft, transmission shaft, driving gear and driven gear, be equipped with transmission subassembly between driving shaft and driving gear or / and transmission shaft and driven gear, transmission subassembly includes elastic part and plug-in part, and the elastic part is equipped with the elastic part and the plug-in part. One of the driving shaft and the driving gear is provided with an elastic part, the other one of the driving shaft and the driving gear is provided with an inserting part, the elastic part is matched with the inserting part in an inserting manner, so that the driving shaft and the driving gear can synchronously rotate, and / or one of the transmission shaft and the driven gear is provided with an elastic part, the other one of the transmission shaft and the driven gear is provided with an inserting part, and the elastic part is matched with the inserting part in an inserting manner; the transmission shaft and the driven gear can rotate synchronously. The problem that a transmission structure is prone to damage is solved, the risk that the transmission structure is abraded and damaged due to the fact that impact load is too large is reduced, and the service life of the mower is prolonged.

The invention discloses a graph-free full-coverage operation control method and device for an intelligent mowing robot and a medium, and the method comprises the steps: controlling a controlled intelligent mowing robot to start to run from a starting point position, and enabling the controlled intelligent mowing robot to start to run in the running process of the controlled intelligent mowing robot; acquiring an image of the controlled intelligent mowing robot in the advancing direction acquired by a visual sensor; segmenting the currently acquired image, and identifying an obstacle; marking a decision area in the currently acquired image; the position relation between the obstacle area and the decision area is judged, and a current action decision is determined according to the judgment result; and acquiring a yaw angle output by fusion of the vision and the IMU, calculating a compensation parameter according to the currently obtained action decision and the currently obtained yaw angle, and sending the compensation parameter to a control end of the controlled intelligent mowing robot until a completely covered mowing task is executed. According to the method, full-coverage operation control can be efficiently realized without depending on a priori map and a coverage path.

A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding element, the spool is used to wind a trimming line, and the line holding element is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding element to make the spool and the line holding element rotate relatively so that the trimming line is wound on the spool automatically.

A riding lawn mower, including: a frame; a seat; a walking assembly and a walking motor; a cutting assembly and a driving motor configured to drive the cutting assembly; a first energy storage device configured to supply power to at least one of the walking motor or the driving motor, the first energy storage device including at least one first energy storage unit, the first energy storage device detachably mounted to the frame and enabled to supply power to a handheld power tool when detached from the riding lawn mower; and a second energy storage device configured to supply power to at least one of the walking motor or the driving motor, the second energy storage device including at least one second energy storage unit; wherein an energy density of the second energy storage unit is different from an energy density of the first energy storage unit.

A drive-by-wire system can include pair of inputs and a controller configured to process signals from the inputs in a first mode and process the same signals differently in a second mode. The controller can be configured to, in the first mode, drive a first motor at a speed and direction that corresponds to the position of the first input and drive a second motor at a speed and direction that corresponds to the position of the second input and, in the second mode, drive the first motor and the second motor in the same direction and at the same speed using the first drive signal when the controller receives a second neutral signal from the second input, and drive the first motor and the second motor at different speeds and / or directions when the controller receives the first drive signal and the second drive signal.

A mower includes: a plurality of wheels; at least one cutter blade that cuts turfgrass; and a blade accommodating section that accommodates the cutter blade, in which the blade accommodating section includes an upper wall section and a peripheral wall section, the peripheral wall section has an inside accommodating three or more of the cutter blades side by side, the cutter blades rotating in the same direction, a partition member is provided between the two cutter blades accommodated in one end side of the upper wall section, and the partition member is not provided between the cutter blades accommodated in the other end side of the upper wall section.

The invention provides a blade dismounting and mounting structure and an intelligent mower, and belongs to the technical field of mowers, the blade dismounting and mounting structure comprises: a base, the interior of which is provided with a mounting hole in a penetrating manner; the locking assembly comprises an operating part, and the operating part and the periphery of the base jointly define a mounting space used for mounting a blade; wherein the locking assembly has a locking state and an unlocking state; when the locking assembly is in the locking state, the locking assembly is connected with the base in a clamped mode, and the blade is limited in the installation space. When the locking assembly is in the unlocking state, the locking assembly has a first working condition and a second working condition, and under the first working condition, the clamping state of the locking assembly and the base is relieved; and under the second working condition, the locking assembly is integrally separated from the mounting hole, so that the blade can be separated from the mounting space. According to the blade dismounting and mounting structure provided by the invention, a user can quickly and easily complete replacement of the blade.

The invention provides an intelligent courtyard management system and method. The system comprises a mowing robot, other courtyard intelligent equipment except the mowing robot, and a docking station. The mowing robot is connected with the other courtyard intelligent equipment through the docking station; the mowing robot is used for generating a scheduling instruction for the other courtyard intelligent equipment according to a trigger event, and sending the scheduling instruction to the other courtyard intelligent equipment through the docking station; and the other courtyard intelligent equipment is used for executing corresponding actions according to the scheduling instruction. The mowing robot is used as a core center and a mobile platform, the docking station is used as an equipment interface, unified scheduling and collaborative operation of intelligent equipment in the intelligent courtyard are achieved, and the docking station is plug-and-play and has no modification cost.

The utility model discloses a cutterhead mechanism and a mower, and relates to the technical field of mowers. The cutterhead mechanism comprises a base, a driving unit, a cutterhead and a baffle; the base is provided with a near-ground side; the driving unit is mounted on the base; the cutterhead is arranged on the near-ground side of the base and comprises a cutterhead frame and a blade, the cutterhead frame is in transmission connection with an output shaft of the driving unit, the blade is provided with a first end and a second end, the first end is connected to the cutterhead frame, and the second end protrudes relative to the peripheral side of the cutterhead frame; the baffles are arranged on the side, away from the base, of the cutterhead frame at intervals and rotatably connected to the output shaft, and the second ends protrude relative to the peripheral sides of the baffles. According to the cutterhead mechanism, the probability that the driving unit has the overcurrent problem can be reduced.

The disclosed subject matter is directed to an electric lawn machine and method for use. The machine can include a housing and a tool, such as a lawnmower blade. A front pair of drive wheels, rear pair of drive wheels, and a storage surface / wheels can be connected to the housing. The housing can be configured to be placed upon a ground surface in two different positions: a use position in which the front pair of drive wheels and the rear pair of drive wheels contact the ground surface; and, a storage position in which the rear pair of drive wheels and the storage surface / wheel(s) contact the ground surface. A handle can be provided that is moveable between a use position, storage position, and an intermediate position in which the machine can be pulled / pushed around into and out of storage by the handle.