3results about How to "Achieve autonomous control" patented technology

The invention relates to the technical field of ship propulsion, and discloses a ship folding fan type sail independent control method based on a wind regime, and the method specifically comprises the steps: data collection, data analysis and fault early warning, wind direction compliance determination, safety evaluation, target angle execution, and angle error determination and compensation. By means of multi-sensor fusion and an intelligent algorithm, high-precision and high-safety autonomous control over the folding fan type sail of the ship is achieved, mechanical faults such as a bearing can be early warned in real time, the sail unfolding angle is dynamically optimized to maximize thrust efficiency, meanwhile, the wind direction effectiveness and structural stress safety are strictly verified, and operation under the dead wind or overload working condition is avoided; and the feedback of the incremental encoder and a grading error compensation mechanism are combined, so that the angle control precision is within + / -1 degree, the wind energy utilization efficiency is remarkably improved, the fuel consumption and carbon emission are reduced, and the safety of the sail and the ship body structure is effectively guaranteed.

The utility model belongs to the technical field of mining intrinsic safety ball valves, and relates to a mining multifunctional ball valve. The mining multifunctional ball valve has the advantages of being intelligent to a certain degree, convenient and fast to operate and convenient to transfer. According to the technical scheme, the intrinsic safety ball valve comprises an intrinsic safety ball valve body and a controller. The controller is electrically connected with the intrinsic safety ball valve body, and the controller is configured to output a starting signal or a stopping signal to the intrinsic safety ball valve body. The controller comprises a shell, a microprocessor and at least one environment monitoring sensor. And the microprocessor is arranged in the shell. The at least one environment monitoring sensor is arranged outside the shell and electrically connected with the microprocessor, and the environment monitoring sensor is configured to collect dust and / or fire behavior at the corresponding position.

The application provides a spacecraft power supply control circuit and method, which are used for realizing MPPT control and shunt control functions of a spacecraft power supply. The control strategy in the application is based on a double-tube buck circuit, which is composed of an MPPT circuit, a PI regulator, a hysteresis comparator, a comparator, an amplitude switching circuit, a PWM circuit, an OR gate and a driver. The application realizes the combination of MPPT control and shunt control by using an analog circuit control mode, and realizes the autonomous control of power supply state switching by using a hardware circuit mode.