3results about How to "Control signal stable" patented technology

The invention belongs to the technical field of numerical control, and discloses a device and method for inhibiting uncertainty disturbance and improving the conveying performance of an euphausia superba conveying suction pump. The lumped disturbance of the system is estimated by using a disturbance observer, and the constraint of the disturbance upper bound on the conservative property of the control design is avoided; then, a novel sliding mode device is adopted to suppress system lumped disturbance, and the robustness of the system is improved; the novel sliding mode controller adds an exponential function item and a power function item in the reaching law to enable the system state to converge rapidly. A sigmoid function is used for replacing a switching function, continuous control input is achieved, high-frequency buffeting is weakened, and stability and continuity of control signals are guaranteed. Therefore, the positioning precision is improved, a stable control signal can be generated, the control performance of the system is obviously improved, the tracking error is reduced, high-frequency oscillation is avoided, and the control precision of the euphausia superba conveying suction pump servo system is further improved.

The application discloses a traffic adaptive safety switching control method and system, computer equipment and a medium, and belongs to the technical field of intelligent traffic, comprising the following steps: constructing a lattice fluid dynamics model, performing linear stability analysis to obtain a critical condition; periodically judging whether the current traffic flow state tends to be unstable based on the critical condition; when the current traffic flow state does not satisfy the critical condition or the traffic oscillation amplitude in the current traffic flow state exceeds a preset threshold, generating an adaptive safety switching controller enabling instruction; activating and running an adaptive safety switching controller based on road network geometric characteristics according to the adaptive safety switching controller enabling instruction; and feeding back the control signal as an additional adjustment term to the flow evolution equation of the lattice fluid dynamics model, so as to obtain a closed-loop control optimized lattice fluid dynamics model. The method improves the anti-interference ability, overall stability and driving smoothness of intelligent networked vehicle traffic flow in a mixed geometric road network environment.

The application discloses a kind of multi-pulse signal flexible drive adjusting device and method, belong to radio frequency power supply technical field, solve two-stage different pulse signals in switching process Conflict, leading to the problem of full switch tube conduction in power amplifier.In the device, multi-pulse generator generates multi-stage pulse signal;Switcher switches the pulse signal output by multi-pulse generator;During the switching transition of multi-stage pulse signal: switching enable controller, according to the level of pulse signal before and after switching, gradually generates pulse switching adjustment signal to control at least one of power, frequency output ramp gradually or gradually decrease;And according to the pulse switching adjustment signal generated gradually, gradually generate the control signal of power amplifier;The power amplifier of radio frequency power supply is based on the control signal of power amplifier to drive radio frequency power supply, and gradually correspond to adjust the output power and frequency of radio frequency power supply during the switching transition of multi-stage pulse signal.