Abstract: An outdoor moving device includes a main body, a first energy storage device, a second energy storage device, and a connection assembly. The first energy storage device is capable of supplying power to the outdoor moving device and includes at least one first energy storage unit. The second energy storage device is capable of supplying power to the outdoor moving device and includes at least one second energy storage unit. The connection assembly is used for mounting the second energy storage device to the main body. The first energy storage device is detachably mounted to the main body, the first energy storage device is detachable from the main body to supply power to another power tool, the first energy storage unit includes a first positive electrode made of a first material, and the second energy storage unit includes a second positive electrode made of a second material.

Abstract: A riding-type mower includes a power supply device and the power supply device includes a plurality of battery packs and a power management module. The plurality of battery packs are detachably mounted to the riding-type mower and further configured to supply electric energy to a hand-held electric power tool. The plurality of battery packs each are provide with at least one battery cell group, and each battery cell group includes a plurality of battery cells electrically connected to each other. The power management module is configured to determine whether the plurality of battery packs satisfy a discharge condition and control a battery pack satisfying the discharge condition to discharge when the battery pack satisfies the discharge condition.

Abstract: An outdoor moving device includes a main body, a first energy storage device, a second energy storage device, and a connection assembly. The first energy storage device is capable of supplying power to the outdoor moving device and includes at least one first energy storage unit. The second energy storage device is capable of supplying power to the outdoor moving device and includes at least one second energy storage unit. The connection assembly is used for mounting the second energy storage device to the main body. The first energy storage device is detachably mounted to the main body, the first energy storage device is detachable from the main body to supply power to another power tool, the first energy storage unit includes a first positive electrode made of a first material, and the second energy storage unit includes a second positive electrode made of a second material.

Abstract: An intelligent mowing system includes a working region defined by a first boundary line, a non-working region defined by a second boundary line, and an intelligent mowing device. The system further includes: a control module configured to control the intelligent mowing device; a positioning module configured to position position information of the intelligent mowing device; and a data acquisition module configured to acquire regional data about a preset range from a current position of the intelligent mowing device. The control module is configured to: acquire the regional data of the intelligent mowing device when the intelligent mowing device works in a boundary walk mode in which a walk along the first boundary line or the second boundary line is performed; and control, according to the relationship between the regional data and a data threshold, the intelligent mowing device to walk along the first boundary line.

Abstract: A battery pack includes a housing; a cell assembly including multiple stacked cell units; elastic pads separately disposed between adjacent ones of the multiple cell units, where air cavities are formed between the elastic pads and the adjacent ones of the multiple cell units; a sealing member disposed at least on the surface of the cell assembly, where the sealing member and the housing form a sealed chamber; and an air-permeable element partially disposed on the side surface of the cell assembly and extending into multiple air cavities along the first direction, where the air-permeable element connects with the air outside the sealed chamber.

Abstract: 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 and a second energy storage device configured to supply power to at least one of the walking motor or the driving motor; a driving circuit to transfer power from at least one of the energy storage devices to at least one of the motors; and a charging circuit to charge at least one of the energy storage devices. The riding lawn mower further includes a first identification terminal engageable with the second energy storage device and a second identification terminal engageable with the first energy storage device; the riding lawn mower identifies a type of the energy storage devices through the identification terminals and selectively connects them to the driving circuit and the charging circuit.

Abstract: A power tool includes a motor, a power supply device, a driver circuit, a parameter acquisition module, and a controller. The motor includes a stator and a rotor. The motor is configured to generate a reluctance torque. The driver circuit is electrically connected to the motor to drive the motor. The parameter acquisition module is configured to acquire a current of the motor, a rotational speed of the motor, and a position of the rotor. The controller is configured to: according to at least one of the current of the motor, the rotational speed of the motor, or the position of the rotor, dynamically adjust a current applied to the stator so that an included angle between a stator flux linkage of the motor and a rotor flux linkage of the motor ranges from 90° to 135°.

Abstract: 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 and a second energy storage device configured to supply power to at least one of the walking motor or the driving motor; a driving circuit to transfer power from at least one of the energy storage devices to at least one of the motors; and a charging circuit to charge at least one of the energy storage devices. The riding lawn mower further includes a first identification terminal engageable with the second energy storage device and a second identification terminal engageable with the first energy storage device; the riding lawn mower identifies a type of the energy storage devices through the identification terminals and selectively connects them to the driving circuit and the charging circuit.

Abstract: A self-propelled device system includes a self-propelled device, a boundary wire configured to define a work area of the self-propelled device and a signal transmitting unit electrically connected with the boundary wire configured to generate and send a boundary signal to the boundary wire that generates a magnetic field when flowing through the boundary wire. The self-propelled device has a signal receiving module and a control module. The signal receiving module uses the magnetic field caused by the boundary signal to generate a boundary wire inductive signal and the control module determines that the boundary wire has a wire break when a relevant parameter of the boundary wire inductive signal is less than or equal to a predefined threshold.

Abstract: A riding lawn mower includes: a seat; a chassis; a wheel; a motor configured to drive the wheel to rotate; a walking control module configured to drive the motor; a power supply assembly configured to at least supply electric power to the motor and the walking control module; and a cutting assembly mounted to the chassis, the cutting assembly including a cutting member for cutting grass; wherein the riding lawn mower further includes: a pedal assembly including a pedal lever rotatable about a first shaft axis to control a walking speed of the riding lawn mower when operated by the user; wherein the pedal lever has an initial position; when the pedal lever is in the initial position and power supply assembly is supplying electric power to the motor and the walking control module, the walking control module controls the riding lawn mower to park.

Abstract: A riding lawn mower includes a power output assembly including a mowing element, a cutting motor for driving the mowing element to move, and a cutting control module for controlling the cutting motor; a walking assembly including a walking wheel, a walking motor for driving the walking wheel to travel, and a walking control module for controlling the walking motor; and a first operating component configured to set starting modes of the walking motor. The first operating component has a first operating state configured to start the walking motor in a first starting mode, and a second operating state configured to start the walking motor in a second starting mode. In the first starting mode, the walking motor starts at a first starting acceleration. In the second starting mode, the walking motor starts at a second starting acceleration. The second starting acceleration is greater than the first starting acceleration.

Abstract: A riding lawn mower includes a chassis, a power output assembly, a walking assembly, a power supply device, a control module, and an operating apparatus. The operating apparatus includes at least one bracket, an operating lap bar assembly, a pivoting assembly, and a position detecting module. The pivoting assembly mounts the operating lap bar of the operating lap bar assembly on the bracket. The operating lap bar can rotate around different positions in a first direction F1 and/or a second direction F2. The position detecting module includes a magnetic element and a magnetic sensor. The magnetic element is provided on the pivoting assembly or the bracket and the magnet sensor is spaced from the magnetic element so that the magnetic element and the magnetic sensor can generate a relative movement for detecting the position of the operating lap bar in the first direction F1 and/or the second direction F2.

Abstract: A power tool includes a motor, a power supply device, a driver circuit, a parameter acquisition module, and a controller. The motor includes a stator and a rotor. The motor is configured to generate a reluctance torque. The driver circuit is electrically connected to the motor to drive the motor. The parameter acquisition module is configured to acquire a current of the motor, a rotational speed of the motor, and a position of the rotor. The controller is configured to: according to at least one of the current of the motor, the rotational speed of the motor, or the position of the rotor, dynamically adjust a current applied to the stator so that an included angle between a stator flux linkage of the motor and a rotor flux linkage of the motor ranges from 90° to 135°.

Abstract: A riding lawn mower includes: a seat; a chassis; a walking assembly including a left second walking wheel, a right second walking wheel, a left walking motor and a right walking motor; and a walking control system for controlling the left walking motor and the right walking motor. The walking control system includes two current detection modules respectively configured to obtain sampled currents of the left walking motor and the right walking motor; the walking control system is configured to obtain a first feedback current of the left walking motor and a first feedback current of the right walking motor, and when a difference of the first feedback current of the left walking motor and the first feedback current of the right walking motor is greater than or equal to a predefined current threshold, reduce a first target voltage of the walking motor with a higher first feedback current.

Abstract: A battery pack includes: multiple cell units; a housing forming an accommodating cavity for accommodating at least the multiple cell units, where the accommodating cavity is an enclosed space; and a thermal insulator disposed on the outer sides of the multiple cell units, where the interior of the thermal insulator is filled with a working medium for dissipating heat from the multiple cell units. When at least one of the multiple cell units reaches a preset temperature, the working medium changes a phase from a liquid state to a gaseous state to dissipate the heat from the multiple cell units.

Abstract: A riding lawn mower includes: a walking assembly including a left walking motor and a right walking motor; a left operating member for generating a left operational amount; a right operating member for generating a right operational amount; a walking motor control module for controlling at least one of the left walking motor or the right walking motor. The walking motor control module includes: an input unit for generating a left reference speed and a right reference speed; a decoupling unit for generating a first velocity and a second velocity from the left reference speed and the right reference speed; a processing unit for independently obtaining a first processed velocity from the first velocity and obtaining a second processed velocity from the second velocity; and an output unit for generating a left target speed or a right target speed from the first processed velocity and the second processed velocity.

Abstract: A riding lawn mower includes a seat, a frame, a mowing element, a deck surrounding, and forming a mowing space for accommodating at least part of the mowing element, and a first motor for driving the mowing element to rotate. The first motor includes a rotor assembly having a rotor shaft enabled to rotate about a rotation axis and a stator assembly, and a motor housing surrounding and forming an accommodation cavity for accommodating at least part of the stator assembly. The rotor shaft passes through the motor housing in a direction of the rotation axis and is at least partially located outside the motor housing. The deck is provided with a first through hole for the first motor to pass through so that the motor housing is at least partially located in the mowing space. The first motor of the riding lawn mower has a good cooling effect.

Abstract: An obstacle avoidance method based on linear laser beams includes: emitting two intersecting linear laser beams to a target area; capturing an image of the target area; calculating coordinates of bright spots formed by the linear laser beams in the image of the target area; and determining whether there is an obstacle in the target area according to the coordinates of the bright spots. If the obstacle exists and a height of the obstacle exceeds a preset obstacle-crossing range, a sweeper avoids the obstacle. If the obstacle does not exist, the sweeper passes through the target area. An obstacle avoidance device based on linear laser beams is also disclosed.

Abstract: A smart mower includes a camera for collecting image data of the environment around the smart mower; an inertial measurement unit (IMU) for detecting pose data of the smart mower; a memory at least used for storing an application program for controlling the smart mower to work or travel; and a processor for calling the application program, fusing the image data collected by the camera and the pose data acquired by the IMU, performing simultaneous localization and mapping (SLAM) of the smart mower, and generating a navigation or mowing action instruction.

Abstract: An outdoor moving device includes a main body, a first energy storage device, a second energy storage device, and a connection assembly. The first energy storage device is capable of supplying power to the outdoor moving device and includes at least one first energy storage unit. The second energy storage device is capable of supplying power to the outdoor moving device and includes at least one second energy storage unit. The connection assembly is used for mounting the second energy storage device to the main body. The first energy storage device is detachably mounted to the main body, the first energy storage device is detachable from the main body to supply power to another power tool, the first energy storage unit includes a first positive electrode made of a first material, and the second energy storage unit includes a second positive electrode made of a second material.