Abstract: A system of an unmanned aerial vehicle (UAV) includes a first body of the UAV capable of flying, a second body detachably attached to the first body and capable of being a stabilizer, and a power supply system capable of powering the first body and the second body. The system further includes one or more sensors, at least one processor, and at least one storage medium storing instructions. When executed, the instructions in the at least one storage medium instruct the processor to receive sensor data from the one or more sensors.

Abstract: A multi-layer composite functional separator for lithium ion battery includes four layers. Layer A is a base separator. Layer B is a porous structural layer composed of insulating inorganic compounds or high temperature resistant polymers. Layer C is a porous layer composed of polymer microspheres with temperature-induced expansion characteristics. Layer D is a thermoplastic resin with a melting point of 80-110° C. and a crystallinity of <50%. Layer B, Layer C and Layer D are sequentially attached on either or both sides of Layer A. Compared with the existing lithium-ion battery separator, the multi-Layer Composite functional separator has excellent heat resistance. The thermal shrinkage rate is less than 1% when heated for less than one hour at 200° C. Inclusion of organic polymer microspheres produces thermal closure of the batteries, which improves the safety of the batteries.

Abstract: A viewing apparatus includes a housing, an optical mechanism including a first lens barrel and a second lens barrel, and an adjustment mechanism including a driving assembly and a sliding assembly. The driving assembly includes a mounting base, a toggle wheel, and a rotating shaft inserted through the toggle wheel and rotatably mounted at the mounting base. The sliding assembly includes a first sliding component connected to the first lens barrel, and a second sliding component connected to the second lens barrel. In response to a rotation of the toggle wheel, the rotating shaft is driven to have a rotation. The rotation of the rotating shaft enables a relative movement between the first sliding component and the second sliding component, and adjusts a distance between a distance between the first lens barrel and the second lens barrel.

Abstract: A head-mount device includes a headband body, a glasses body configured to rotate relative to the headband body among a plurality of positions including a use position and at least one open position, and a rotating shaft mechanism rotatably coupling the glasses body to the headband body. The glasses body is configured to be position limited at one of the at least one open position. The rotating shaft mechanism includes a pressure assembly and a connecting member configured to rotate relative to the pressure assembly. A damping force generated by a rotation of the connecting member relative to the pressure assembly being greater than a gravity of the glasses body. The pressure assembly includes a stationary seat mounted to the headband body and including a mounting shaft; an abutment member and a lock member arranged at the mounting shaft; and an elastic component arranged between the abutment member and the lock member.

Abstract: A viewing apparatus includes a housing, an optical mechanism including a first lens barrel and a second lens barrel, and an adjustment mechanism including a driving assembly and a sliding assembly. The driving assembly includes a mounting base, a toggle wheel, and a rotating shaft inserted through the toggle wheel and rotatably mounted at the mounting base. The sliding assembly includes a first sliding component connected to the first lens barrel, and a second sliding component connected to the second lens barrel. In response to a rotation of the toggle wheel, the rotating shaft is driven to have a rotation. The rotation of the rotating shaft enables a relative movement between the first sliding component and the second sliding component, and adjusts a distance between a distance between the first lens barrel and the second lens barrel.

Abstract: A wearable device includes a load-carrying device and an optomechanical device detachably mounted at a side of the load-carrying device. The optomechanical device includes a display screen configured to display an image and an optical assembly configured to project the image.

Abstract: A headband adjusting device includes a mounting base including an internal ratchet, a linkage mounted on the mounting base. The linkage includes a transmission member and an elastic position limiting member configured to abut against a tooth of the internal ratchet. The headband adjusting device also includes a thumbwheel connected with the linkage and configured to cause the linkage to rotate, the thumbwheel including a disengaging member corresponding to the position limiting member. When the thumbwheel rotates in a first direction, the disengaging member abuts against the position limiting member to unlock the internal ratchet. When the thumbwheel rotates in a second direction, the position limiting member rotates while contacting the internal ratchet. The headband adjusting device further includes a transmission mechanism coupled with the transmission member. The linkage is configured to drive the transmission mechanism, which drives a headband to extend or retract.

Abstract: A video glasses headband includes a first head-ring-body, a second head-ring-body connected to the first head-ring-body, a docking assembly arranged at the first head-ring-body and configured to cooperate with video glasses, and an antenna assembly including an antenna arranged inside one of the first head-ring-body and the second head-ring-body.

Abstract: Video glasses include a headband body, a glasses body configured to rotate relative to the headband body to be at one of a plurality of positions including a use position and at least one open position, and a rotating shaft mechanism rotatably coupling the glasses body to the headband body. The glasses body is configured to be position limited at one of the at least one open position.

Abstract: An adjustment mechanism includes a driving assembly and a sliding assembly. The driving assembly includes a mounting base, a toggle wheel, a gear, and a rotating shaft. The gear is non-rotatably connected to the toggle wheel. The rotating shaft is inserted through the toggle wheel and rotatably mounted at the mounting base. The sliding assembly includes a first sliding component connected to a first lens barrel and including a first rack, and a second sliding component connected to a second lens barrel and including a second rack. The gear is sandwiched between the first sliding component and the second sliding component, and is engaged with the first rack and the second rack.

Abstract: A video glasses headband includes a first head-ring-body, a second head-ring-body connected to the first head-ring-body, a docking assembly arranged at the first head-ring-body and configured to cooperate with video glasses, and a battery assembly arranged inside the second head-ring-body and including a battery.

Abstract: A video glasses headband includes a first head-ring-body, a second head-ring-body connected to the first head-ring-body, a docking assembly arranged at the first head-ring-body and configured to cooperate with video glasses, and a battery assembly arranged inside the second head-ring-body and including a battery.

Abstract: A multi-layer composite functional separator for lithium ion battery includes four layers. Layer A is a base separator. Layer B is a porous structural layer composed of insulating inorganic compounds or high temperature resistant polymers. Layer C is a porous layer composed of polymer microspheres with temperature-induced expansion characteristics. Layer D is a thermoplastic resin with a melting point of 80-110° C. and a crystallinity of <50%. Layer B, Layer C and Layer D are sequentially attached on either or both sides of Layer A. Compared with the existing lithium-ion battery separator, the multi-Layer Composite functional separator has excellent heat resistance. The thermal shrinkage rate is less than 1% when heated for less than one hour at 200° C. Inclusion of organic polymer microspheres produces thermal closure of the batteries, which improves the safety of the batteries.

Abstract: A wearable device includes a load-carrying device and an optomechanical device detachably mounted at a side of the load-carrying device. The optomechanical device includes a display screen configured to display an image and an optical assembly configured to project the image.

Abstract: A headband adjusting device includes a mounting base including an internal ratchet, a linkage mounted on the mounting base. The linkage includes a transmission member and an elastic position limiting member configured to abut against a tooth of the internal ratchet. The headband adjusting device also includes a thumbwheel connected with the linkage and configured to cause the linkage to rotate, the thumbwheel including a disengaging member corresponding to the position limiting member. When the thumbwheel rotates in a first direction, the disengaging member abuts against the position limiting member to unlock the internal ratchet. When the thumbwheel rotates in a second direction, the position limiting member rotates while contacting the internal ratchet. The headband adjusting device further includes a transmission mechanism coupled with the transmission member. The linkage is configured to drive the transmission mechanism, which drives a headband to extend or retract.

Abstract: Video glasses include a headband body, a glasses body configured to rotate relative to the headband body to be at one of a plurality of positions including a use position and at least one open position, and a rotating shaft mechanism rotatably coupling the glasses body to the headband body. The glasses body is configured to be position limited at one of the at least one open position.

Abstract: An adjustment mechanism includes a driving assembly and a sliding assembly. The driving assembly includes a mounting base, a toggle wheel, a gear, and a rotating shaft. The gear is non-rotatablely connected to the toggle wheel. The rotating shaft is inserted through the toggle wheel and rotatably mounted at the mounting base. The sliding assembly includes a first sliding component connected to a first lens barrel and including a first rack, and a second sliding component connected to a second lens barrel and including a second rack. The gear is sandwiched between the first sliding component and the second sliding component, and is engaged with the first rack and the second rack.