4results about How to "Not intrusive" patented technology

The invention discloses a protection device for a photovoltaic inverter, and relates to the technical field of inverters, the protection device comprises an inverter body, a display is fixedly installed on the front side wall of the inverter body, a plurality of heat dissipation holes are formed in the top surface of the inverter body, and a protection mechanism is arranged, so that a temperature sensor monitors the internal temperature of the inverter in real time; when the temperature exceeds a safety threshold value, a heat dissipation system is automatically started, equipment damage caused by overheating is effectively prevented, meanwhile, a smoke sensor can detect internal flames or smoke in time, a fire extinguishing system is automatically started, a fire source is rapidly isolated, carbon dioxide is released, and losses caused by fire disasters are reduced to the maximum extent; in addition, protection under severe weather conditions is also considered in the equipment, and the protection shell and the filter screen are arranged to ensure that rainwater and foreign matters cannot intrude into the inverter, so that the stable operation and the service life of the equipment are further guaranteed, and the safety and the reliability of the photovoltaic inverter in the operation process are remarkably improved.

A method for planning an autonomous landing safe trajectory suitable for UAV inspection is proposed. After the UAV takes off, it acquires the current pose of the UAV, the point cloud map information of the surrounding environment, and the spatial orientation of the target point. By establishing the spatial transformation relationship between the camera coordinate system and the body coordinate system, the orientation vector relative to the ground target is calculated, and the target point is generated within the radar-sensible area. Based on the generated target point, an optimization function that minimizes the fourth derivative is constructed based on multiple high-order polynomials to generate a smooth trajectory with continuous position, velocity, and acceleration. The initial trajectory is transformed into a B-spline curve, and local trajectory segments with collision risk are optimized. A segmented penalty mechanism is designed based on the boundary threshold to guide the trajectory away from the boundary area. The time span is adjusted by calculating the trajectory derivative over-limit ratio, and a trajectory similarity cost function is introduced to ensure that the final optimized trajectory maintains the original geometric structure, thereby achieving trajectory control optimization and safe landing of the UAV.

The invention discloses a pre-pressing type ultrathin matrix spring vibration isolation support and a mounting method thereof. The support comprises an upper seat plate, a lower seat plate, a vibration reduction assembly, a pre-pressing assembly and a horizontal buffering and limiting assembly. And the upper seat plate and the lower seat plate are fixedly connected with an upper building and a lower building respectively. The two ends of the vibration reduction assembly are connected with the bottom of the upper seat plate and the top of the lower seat plate correspondingly, and the vibration reduction assembly comprises multiple sets of high-rigidity springs arranged in an array. Each pre-pressing assembly comprises a first supporting frame, a second supporting frame, an adjusting screw rod and a locking nut, the first supporting frame and the second supporting frame are symmetrically arranged up and down, the two ends of the adjusting screw rod penetrate through the first supporting frame and the second supporting frame correspondingly, the locking nuts are in threaded connection with the two ends of the adjusting screw rod, and the damping assembly can be adjusted to be in a rated bearing state through the pre-pressing assemblies. The horizontal buffering and limiting assembly buffers and limits the horizontal relative movement between the upper base plate and the lower base plate. The vibration isolation support is small in size, light in weight and capable of pre-pressing and adjusting the rated load bearing of the vibration reduction assembly, and meanwhile has the buffering and vibration reduction function in the horizontal direction.

The utility model discloses a paint bucket with an auxiliary blending structure, which comprises a paint bucket main body, the bottom end outside the paint bucket main body is fixedly connected with a bottom plate, one side outside the paint bucket main body is fixedly connected with a placing box, a sealing cover plate is arranged above the paint bucket main body, the two ends of the sealing cover plate are movably connected with lifting handles, and the lifting handles are fixedly connected with the bottom plate. A containing groove is formed in the top end of one side of the sealing cover plate, and the lifting handle and the containing groove are connected in a clamped mode. According to the paint bucket with the auxiliary blending structure, by arranging the sealing cover plate, the lifting handle, the containing groove, the mounting block and the connecting groove, the sealing performance of the paint bucket body is enhanced while flexible disassembly is achieved, it is ensured that no dust or other foreign matter invades during storage, and the problems that after being opened and used, the paint bucket cannot be sealed and closed again, flexibility is poor, and the service life is long are solved. And dust and other foreign matters are easy to adhere to the unused paint in the barrel in the storage process, so that the subsequent use is influenced.