5results about How to "Lower specification requirements" patented technology

The invention discloses a split type jacket and skirt pile combined type fan supporting structure, and belongs to the technical field of offshore wind power engineering, the combined type fan supporting structure comprises a first assembly, a second assembly and a supporting assembly, the first direction end of the first assembly is used for being connected with a fan tower barrel, the second direction end of the first assembly can be connected with the second assembly, and the supporting assembly is used for supporting the fan tower barrel. The second direction end of the second assembly is connected with the supporting assembly, and the skirt pile can penetrate through the supporting assembly for pile sinking. The jacket is designed into a split type, so that the processing difficulty, the size of the jacket, the use amount of steel and the weight of a single body are greatly reduced, the rated use amount of a floating crane and the specification requirements of related offshore construction equipment can be reduced, and the purpose of reducing the manufacturing cost and the transportation and installation cost is achieved.

The invention discloses a soil water and fertilizer retention mulching film product using agricultural waste straws as raw materials and a preparation method thereof, the product has raw material sources easier to obtain and a greener technical process than traditional plastic mulching films, a solvent system is composed of eutectic reagents, and the product has the characteristics of being recyclable and environment-friendly. The straw-based mulching film can be naturally formed after being sprayed to the surface layer of soil, and has the effects of inhibiting evaporation of soil moisture and emission of greenhouse gases and enhancing soil fertility.

The invention belongs to the technical field of purification of activators for cesium iodide scintillation screens, and particularly relates to a purification system and purification method for an activator for a cesium iodide scintillation screen and application. The activating agent purification system provided by the invention comprises a heating and separating device for separating an activating agent for a solid cesium iodide scintillation screen and heating and melting equipment for further purifying the solid activating agent, and the heating and separating device is mainly used for removing cesium iodide in waste and impurities such as furnace wall dust, metal particles and glass particles. The heating melting equipment is used for melting and evaporating the separated activating agent, residual impurities are removed again, and the high-purity activating agent is obtained. In addition, the invention further provides an activating agent purification method, the aim of purifying the activating agent is achieved through heating dissolution, screening filtration, pure water washing, melting evaporation and condensation collection, the whole purification process is environmentally friendly and safe, secondary pollution is not generated, the purified activating agent can be directly applied to production of cesium iodide single crystals, and the method is suitable for industrial production. And preparing the cesium iodide scintillation screen.

The present application relates to the field of machine vision technology, and for the application field of robot systems, a calibration method, system, electronic device and storage medium for a manipulator and a 3D camera are proposed. By installing a calibration plate with a single feature pattern at the end of the manipulator, the calibration plate can move synchronously with the end of the manipulator, and a 3D camera is installed in the base coordinate system of the manipulator. After determining the moving range of the manipulator, the manipulator is automatically controlled to move m times, and the image information of the calibration plate under m different postures is collected, and the image information of n times is selected to calculate the calibration matrix X to complete the calibration of the manipulator and the 3D camera. The present invention is based on the calibration plate with a single feature pattern for calibration. The hardware structure is simple and low-cost. In terms of algorithm, it does not need to calculate the posture information of the calibration plate, does not need to calibrate the camera internal parameters, simplifies the calculation process, reduces the calculation complexity, and realizes an automated calibration process.

This application relates to the field of power supply circuit technology, providing a high-voltage rectified and regulated power supply circuit system and a power supply control method. The system includes: a main voltage source for providing a target output voltage; a main switching circuit for converting the target AC output voltage into DC; a DC bus connected to the load; a clamping voltage source for providing a clamping voltage lower than the target output voltage; a clamping switch circuit for converting the AC clamping voltage into DC; an auxiliary voltage source connected to the DC bus; and a control unit for controlling the auxiliary voltage source to pre-charge the power devices in the circuit system before the main switching circuit and the clamping switch circuit are turned on; after pre-charging, power is supplied to the load through the DC bus by controlling the alternating conduction of the main switching circuit and the clamping switch circuit. This application, through the configuration of multiple voltage sources with similar voltage values ​​and an auxiliary voltage source, can establish a power supply system with stable output, low power storage requirements, and low specifications for power devices.