6results about How to "Avoid security impact" patented technology

The invention relates to the technical field of axial flow pumps, in particular to a blade angle adjusting device for an axial flow pump and the axial flow pump. The blade angle adjusting device comprises an impeller hub, a flow guide cover is fixedly installed at the bottom of the impeller hub, and a fixing frame inserted into the impeller hub is fixed to the top of the inner wall of the flow guide cover; first mounting holes which are annularly distributed at equal intervals are formed in the circumference of the impeller hub, the inner walls of the first mounting holes are connected with steering shafts through sealing bearings, pump blades are fixedly mounted at one ends of the steering shafts, and steering gears are fixedly mounted at the other ends, extending into the impeller hub, of the steering shafts. According to the axial flow pump, the angles of the pump blades can be flexibly changed, the axial flow pump can operate efficiently under different flow and lift requirements, when the angles are adjusted to be large, the rotating speed of the smashing shaft and the rotating speed of the smashing cutter are synchronously increased, hard objects such as branches are sufficiently and rapidly smashed, and the service life of the smashing cutter is prolonged. And hard objects are prevented from flowing into the axial flow pump along with quickly circulating water to influence the safety performance of the pump body.

This invention discloses a HART circuit and a method for determining the status of its field interface. The HART circuit includes: a control interface, an adjustable power supply module, a first HART module, an isolation module, and a field interface. The first HART module is connected to the control interface and is used to generate a first control signal when a first interrogation signal is input to the control interface. The adjustable power supply module is connected to both the control interface and the first HART module, and is used to output a first power signal to the control interface and modulate the first power signal into a first HART signal in response to the first control signal. The first end of the isolation module is connected to the control interface, and the isolation module is used to isolate the signal at its first end and couple it to its second end. The field interface is connected to the second end of the isolation module. This invention enables bidirectional communication between the control room and the production site, diversifies the application scenarios of the communication function of the HART circuit, and optimizes the performance of the HART circuit.

This invention discloses a levitation control method, equipment, and medium for conventional maglev trains, belonging to the field of maglev transportation control technology. The method constructs a control framework based on a dynamic model of the levitation system and introduces an online residual estimation and compensation mechanism to compensate for track irregularities, aerodynamic disturbances, and unmodeled dynamics under complex operating conditions. A lightweight data-driven model obtained through cloud-based large-scale model knowledge distillation is deployed in the onboard edge computing unit to model the temporal characteristics of system state, track features, and external environmental information, estimating disturbance residuals in real time and generating compensating control quantities that are superimposed on the control input. Simultaneously, the cloud continuously optimizes model parameters based on historical operating data and issues updates, achieving iterative optimization of the control strategy. This invention can significantly improve the stability, dynamic response performance, and operational safety of the maglev train levitation system under high-speed operating conditions.

This application provides a program execution method, apparatus, processor, chip, and electronic device. The method includes: determining a program to be executed; transmitting program information of the program to a security device, so that the security device matches the program with a whitelist based on the program information; receiving a matching result transmitted by the security device; if the matching result indicates that the program matches the whitelist, executing the program; if the matching result indicates that the program does not match the whitelist, starting a security container and executing the program within the security container. This application can ensure the security of the computer system while avoiding the high false alarm rate of the whitelist mechanism and improving the flexibility of program execution under the whitelist mechanism, thereby achieving program execution while balancing security and flexibility.

The invention discloses a robot protection control method and device based on motion state detection, and relates to the technical field of robot control, and the method comprises the steps: obtaining motion state data and external collision data, evaluating an unbalance state, adjusting a joint motor to lower the gravity center if the unbalance state is unbalanced, carrying out the re-evaluation until balance, and obtaining the vibration data of a robot after the balance. And an avoidance demand is evaluated, and when avoidance is needed, an avoidance algorithm is used to execute avoidance until avoidance is not needed, and then the action is continued. According to the method, the motion state data and the external collision data are obtained, evaluation is carried out according to the posture anomaly coefficient and the collision unbalance coefficient, whether the robot is unbalanced or not is judged, the accuracy of robot unbalance judgment is improved, the joint angle of the robot is adjusted through the joint motor, the gravity center of the robot is transferred, and the robot unbalance judgment accuracy is improved. And the gravity center is lowered, so that the torque of the robot is reduced, the stability of the robot is improved, the balance of the robot is improved, and the action efficiency of the robot is improved.