1654results about "Safety arrangments" patented technology

The invention discloses a medical equipment remote control system based on Internet of Things data, relates to the technical field of equipment remote control, and realizes efficient safety protection of medical equipment remote control through four links of multi-source data acquisition and behavior baseline construction, real-time anomaly detection, risk grading evaluation and linkage processing, and adaptive safety strategy execution. Firstly, an operation log is collected and cleaned, a multi-dimensional label is added, and a baseline model M is constructed to judge the deviation degree; then, deviation degree calculation is carried out on the instructions in real time, suspicious instructions are screened, and a structured suspicious instruction set is formed; in the risk grading stage, performing multi-factor grading on suspicious instructions and screening medium-high risk objects; and finally, according to the risk vector, calculating the priority of a strategy and matching a predefined interval, implementing security protection through measures such as multi-factor authentication, secondary approval or temporary freezing, and continuously writing back and updating a disposal result to form a closed loop to improve the overall security management and control level.

The invention relates to the technical field of industrial distributed control system architecture, and discloses a dual-redundancy design method for a virtual controller VDPU, which comprises the following steps of: deployment of a four-network-port redundant network architecture: dividing four physical network ports into two groups of independent channels, and simultaneously configuring a network link automatic switching mechanism, the working states of the four network ports are monitored in real time, then double isolation of a physical layer and a protocol layer is achieved, and an independent heartbeat transmission channel is established; main / standby heartbeat monitoring and switching control: the main / standby controller periodically interacts state information packets through a special heartbeat channel, and establishes a three-level fault determination mechanism at the same time to perform seamless main / standby switching; a multi-mode data synchronization mechanism is implemented, namely initialization synchronization, increment synchronization during operation and exception recovery synchronization are started, separation of heartbeat signals and data synchronization can be realized through two groups of independent channels, and the fault-tolerant capability and the switching efficiency of the system are improved, so that the operation stability of the system is guaranteed.

The invention discloses a radar lifting control method and system based on meteorological monitoring, and relates to the technical field of radar lifting control, and the method comprises the steps: completing the switching of a power supply and communication after a radar is powered on, initializing a controller, collecting the data of a meteorological station, and generating a future fusion wind speed in real time through a Kalman filtering physical model and a residual neural network; future fused wind speed is converted into wind pressure for evaluation, the risk degree is judged according to the evaluation result, early warning is given out, and the controller is preheated to enter a lifting preparation state. The input stability is improved through meteorological data sliding window smoothing and feature extraction, wind speed dynamic prediction and uncertainty quantification are achieved through XGBoost prediction and residual variance estimation, the time sequence consistency and robustness are enhanced through remote API interpolation correction and adaptive extended Kalman filtering, residual correction is conducted through a neural network, the prediction precision is improved, and the prediction accuracy is improved. And a reliable decision basis is provided for radar lifting control.

The invention provides a hybrid fault-tolerant control method and system for a multi-sensor simultaneous fault scene, and the method comprises the steps: inputting the historical time sequence feature data of sensors into a long short-term memory network and a Stacking model, and obtaining the output data prediction values, outputted by the long short-term memory network and the Stacking model, of the sensors at the current moment; according to a difference value between an output data prediction value and an output data actual value of the sensor at the current moment output by the long-short-term memory network, whether the sensor breaks down or not is determined through sequential probability ratio inspection; and under the condition that the sensor has a fault, determining an output data reconstruction value of the sensor at the current moment according to an output data prediction value of the sensor at the current moment, which is output by the long-short-term memory network and the Stacking model. According to the invention, fault detection and output data reconstruction can be carried out on the sensor in real time, and the stability and reliability of the system under the condition of multi-point observation failure are improved.

The invention relates to the technical field of equipment abnormity control, and discloses an equipment abnormity self-closed-loop control system. An anomaly detection engine of the system collects operation state data of target equipment in real time, and performs preliminary anomaly marking according to a preset anomaly judgment rule; the dynamic analysis unit receives the preliminary anomaly marks, generates anomaly feature vectors in combination with historical operation data, and inputs the anomaly feature vectors into a multi-dimensional evaluation model to divide anomaly levels; a strategy generator is matched with a preset repair strategy library according to the abnormal grade division result, and a corresponding repair instruction sequence is generated; the execution control module analyzes the repair instruction sequence, and dispatches hardware resources to execute repair operation according to a preset execution priority; and the feedback verification unit collects the running state data again after restoration, and compares the running state data with the initial abnormal mark to generate a restoration verification result. The system realizes full-process automatic processing of equipment exceptions, and improves exception processing efficiency and equipment operation stability.

The invention relates to a multi-mode self-adaptive underwater propeller and a control method thereof, and the multi-mode self-adaptive underwater propeller comprises an information collection module which comprises a sonar sensor, a magnetic sensor, an inertia measurement unit and a water pressure sensor; the data analysis module receives the multi-source data from the information acquisition module and generates a unified environment state model through a multi-source information fusion algorithm; the mode switching module is used for calculating the risk level of the current operation state based on a preset comprehensive evaluation index and selecting a corresponding operation mode according to the risk level; the power adjusting module is used for adjusting the power output characteristics of the propeller according to the selected operation mode; and the redundant fault-tolerant module is configured with a standby sensor group and switching logic, and when the main sensor group is interfered or breaks down, the standby sensor group is automatically started and the environment state model is recalculated.

A safety device for monitoring at least one machine has at least one sensor for generating sensor data about the machine and a processing unit for the sensor data that is at least indirectly connected to the sensor and the machine. This processing unit is designed as an execution environment with at least one computing node and is configured to run at least one logic unit on the computing node. The logic unit includes at least one safety function unit for safety-oriented evaluation of the sensor data in order to output a safety signal to the machine to trigger a safety response in the event of a safety-relevant event. The processing unit is further configured to generate, modify, and / or resolve logic units based on a safety task.

The invention relates to a power plant temperature control system safety protection device and system. The power plant temperature control system safety protection device comprises a redundant temperature acquisition module, a temperature control safety processing module, an actuator control protection module, an intelligent strategy recovery module and a communication and alarm module. Through multi-point temperature data acquisition, abnormal trend intelligent identification and local linkage control, the device realizes quick response and protection control of temperature control abnormity of a key area of a boiler thermodynamic system. The system supports data interconnection with a DCS platform and an alarm analysis platform, has local independent operation and remote centralized management capabilities, and is suitable for temperature control safety protection of high heat load areas such as boilers of coal-fired power plants.

The invention discloses a UPS (Uninterrupted Power Supply) parallel operation redundancy system and a control method thereof, and relates to the field of UPS, the UPS parallel operation redundancy system comprises a plurality of groups of UPS modules, a plurality of groups of UPS module parallel links, a monitoring unit, a control unit and a switching unit; voltage sampling points of each group of UPS modules are connected with the AD conversion module of the monitoring unit through a double-shielding coaxial line, the control unit is connected with the monitoring unit through a PCIe bus, and the switching unit receives signals output by the control unit through an optical fiber channel. Through a multi-factor coupling mechanism of the dynamic redundancy capacity distribution model, the temperature correction index and the time attenuation factor are deeply fused, real-time dynamic optimization of UPS module load distribution is realized, and performance attenuation and local overload in a high-temperature environment are effectively inhibited; and through the combined criterion of the historical fault integral and the instantaneous over-threshold, the cooperative adaptive capacity of the system to the progressive fault and the sudden load fluctuation is improved.

A system configuration significantly reduces the number of interconnections needed between an electromechanical actuator (EMA) and an EMA controller (EMAC) while maintaining redundancy and other safety aspects needed by the target application without adding second or third independent redundant position sensors to the EMA for use with backup channel of the controller. The system configuration extends the sensor architecture used by COM-COM controllers with an additional sensor channel used by a backup controller without the need for adding a separate physical position sensor for the backup controller, which saves implementation effort, space, and weight that would otherwise be needed for integration of additional redundant sensors into the EMA.

An in-vehicle system includes: a first in-vehicle device installed in a vehicle; a second in-vehicle device controlled in accordance with a signal output from the first in-vehicle device; a first in-vehicle ECU communicably connected to the first in-vehicle device and the second in-vehicle device by signal lines; and a second in-vehicle ECU communicably connected to the first in-vehicle device and the second in-vehicle device by the signal lines. The first in-vehicle ECU and the second in-vehicle ECU are connected by a communication line of a type different from a type of the signal lines, and a communication path from the first in-vehicle device to the second in-vehicle device includes a first path relayed by the first in-vehicle ECU and a second path relayed by the second in-vehicle ECU.

The invention discloses an encoder and Hall dual-mode redundancy closed-loop driving method and system, and relates to the technical field of motion control and fault tolerance, and the method comprises the steps: collecting the dual-channel signal data of an encoder and a Hall sensor in parallel in real time, and monitoring the redundancy through consistency detection; carrying out abnormity screening based on a preset rule on the collected double-path signals, carrying out data health assessment by using a machine learning model, and carrying out abnormity identification on the screened double-path signals; and fusing screening and identification results, dividing risk levels, and when an abnormal value exceeds a risk level threshold value, performing intelligent fault-tolerant switching. The dynamic threshold rule, the online incremental learning decision tree and the multi-level fusion grading strategy adopted by the method have sensitive capture capability on progressive and hidden faults. In a high interference scene, the accuracy and continuity of fault detection are effectively ensured through concept drift monitoring and a streaming decision tree online updating mechanism.

A hybrid, redundant, fail-safe architecture provides a unified fail-operational framework for autonomous agents operating across physical and virtual domains. The system employs a multi-modal data source suite, an adaptive hybrid data fusion module, and an intelligent decision-making module. A novel closed-loop interaction enables a health monitoring module that detects an incipient fault in a data source by monitoring ancillary performance metrics. Upon detection, the module generates a fault signature, including a quantitative prognostic estimate of a future failure time, and transmits it to an adaptive data fusion module. The fusion module proactively reconfigures its state estimation algorithm by decreasing reliance on the degrading data source in proportion to the prognostic estimate. This preemptive compensation ensures the system maintains a high-integrity environmental model and achieves true fail-operational continuity. The architecture is applicable to numerous embodiments providing a universal solution for proactive fault management and system resilience.

The invention discloses a ship propulsion control system and method, and relates to the technical field of ship engineering.The ship propulsion control system comprises an acquisition module used for acquiring analog quantity signals during ship propulsion, and a main controller module used for receiving the analog quantity signals and generating a propulsion control instruction; according to the ship propulsion control system, two acquisition channels are arranged for analog quantity signals, a fault channel is rapidly detected and switched in combination with a self-checking mechanism, the fault channel can be rapidly detected, the fault channel can be rapidly switched, the fault channel can be rapidly detected, the fault channel can be rapidly switched, and the reliability of the ship propulsion control system can be improved. A digital quantity output channel fault is found in time and switched to a standby channel, a power supply and communication interface backup strategy is perfected, fault priorities are accurately divided, corresponding measures are taken, the strict requirements of modern ships for high reliability and high safety of propulsion control are met, and powerful technical support is provided for stable navigation of the ships.

The invention relates to the technical field of power equipment, and discloses a power electronic transformer redundant controller switching method, which comprises the following steps of: constructing a redundant control array to collect analog quantity data of a power electronic transformer in real time so as to obtain two groups of instantaneous interaction data; the master controller generates a control logic by any one group of instantaneous interaction data to control the operation state of the power electronic transformer, and sends the other group of instantaneous interaction data to the slave controller in a preset interruption period to dynamically update the data of the slave controller; through the redundancy design of the master controller and the slave controller, when the master controller breaks down, the master controller can be quickly switched to the slave controller in a control period, and the switched master controller continues the last updated instantaneous interaction data of the master controller before switching, so that the non-impact switching is realized, the fluctuation or shutdown risk of the system is avoided, and the reliability of the system is improved. The stable operation of the power electronic transformer is ensured, and the maintenance and shutdown loss caused by faults is reduced, so that the overall maintenance cost is reduced.

The invention discloses a charging pile liquid cooling module intelligent cooperative control system based on an industrial Ethernet, and relates to the technical field of liquid cooling control. The charging pile liquid cooling module intelligent cooperative control system based on the industrial Ethernet comprises a liquid cooling data acquisition and preprocessing unit used for acquiring and preprocessing liquid cooling cooperative operation data; the thermal load sensing and intelligent liquid cooling regulation and control unit is used for dividing independent cooling branches, evaluating the thermal load degree of each cooling branch, judging the real-time thermal load state and generating and executing a control instruction; the anomaly detection and cooling redundancy control unit is used for evaluating the thermal response deviation condition of a cooling branch and judging whether a double-ring redundancy pipeline is started or not; and the fault root cause judgment and recovery enhancement unit is used for evaluating the component fault risk degree in the abnormal branch and executing fault-tolerant control and branch recovery strategies. The problem that a whole set of liquid cooling system is shut down due to the fact that local fault tolerance cannot be achieved when a local branch breaks down in a traditional pipeline structure is solved.

The invention discloses a safety control method and system for an emerging control main body, and belongs to the technical field of power system active control, and the method comprises the steps: carrying out the bidirectional data interaction through a master station AGC and a field station AGC, and carrying out the bidirectional data interaction based on a bidirectional data interaction result and a cooperative anti-error parameter; whether the emerging control main body is in a controllable state or not is judged in real time through collaborative security locking logic; if the control main body is in the controllable state, active measurement data of the emerging control main body are obtained, and jump detection and multi-source checking are carried out on the active measurement data; after verification is passed, a pre-control instruction is generated based on the control strategy, and reasonability verification and control effect simulation verification are carried out; and after the control effect simulation verification is passed, the pre-control instruction is taken as a final control instruction to be issued to the emerging control main body for execution. The method can greatly improve the safety control capability of AGC on an emerging control main body, guarantees the frequency operation safety of a power grid, and improves the safe and reliable power supply capability of the power grid.

An anti-pinch system for an electric seat includes a plurality of infrared sensing modules, a seat cushion hose, a footrest hose, a pressure sensor, at least one linear actuator, a central processing unit, a power module and a control module. When the user operates the electric seat to act, the plurality of infrared sensing modules and the pressures sensor synchronously sense whether an obstacle is under the electric seat. If an obstacle exists under the electric seat, the central processing unit will control the at least one actuator to stop or to reversely act. When the user cannot perceive obstacles by themselves, the electric seat can be automatically prevented from pinching obstacles, thus avoiding damaging the obstacles or the electric seat.

The invention discloses a safety disaster recovery system based on flight control, and the system firstly constructs three independent flight control units through heterogeneous computing resources, and deploys the flight control units at different positions to realize space redundancy protection, thereby avoiding system crash caused by single-point failure; each flight control unit transmits a heartbeat signal and a control instruction in real time through the communication redundant network; the main control system operates a hierarchical switching algorithm to realize smooth transition output of an instruction under redundancy control, and reports a fault state at the same time; the output of the parachute opening instruction is fused with the fault state sent by the flight controller and the fault state of the parachute special sensor, and voting is carried out by the voter in a unified mode. The fault-tolerant capability is high, and the synchronization failure probability can be greatly reduced; the bit error rate and the communication delay are reduced by the dual-CAN bus redundant network; seamless switching can be realized, and state continuity is guaranteed; parachute opening control is reliable and rapid, and too early / too late parachute opening caused by single-node misjudgment can be avoided.

A surgical system comprises a control circuit, a surgical instrument and a user interface is disclosed. The end effector assembly may comprise a sensor configured to detect a parameter associated with a function of the end effector, and transmit the detected parameter to the control circuit. Further, the control circuit may be configured to analyze the detected parameter based on a system-defined constraint and prevent at least one function of the surgical instrument based on a result of the analysis. The user interface may be configured to provide a current status regarding at least one prevented function of the surgical instrument.

The invention provides an intelligent redundancy control method based on functional safety, and the method comprises the steps: 1, collecting key parameters in real time, and outputting a safety score S according to a fuzzy logic formula S = 0.3 XTnorm + 0.2 Vstable + 0.5 Cdelay; 2, preprocessing the key parameters, the safety score, the environmental data and the historical fault records, constructing a risk assessment model through the preprocessed data, and performing risk grade division; 3, triggering redundancy strategy adjustment according to the risk level and the safety score; and step 4, when the redundancy strategy is adjusted to a high-risk scene, triggering switching logic through hardware interruption, and completing redundancy control. According to the technical scheme provided by the invention, the problems that the existing scheme is high in cost, slow in response, incapable of adapting to a dynamic risk environment and easy to cause simultaneous failure of multiple nodes are effectively solved.

The invention discloses a water supply control method based on a multi-redundant neural network, and relates to the technical field of water supply control. The technical key points are as follows: the system collects feedback data of each key node of the water supply system in real time, and carries out deep analysis on an operation attenuation coefficient and a state estimation coefficient by using a multi-redundancy neural network algorithm, so that subtle changes in the operation process of execution equipment can be accurately captured, potential fault hidden dangers can be timely perceived, and once abnormality is detected, the system can be used for monitoring the operation of the execution equipment. The system rapidly triggers an emergency plan, automatically switches to a standby model to ensure the stability of water supply, dynamically adjusts a water supply strategy according to the fault type, immediately sends alarm information to a manager, explains the fault position, the fault type and the possible influence in detail, and comprehensively avoids the serious interference of the fault on water supply.

The disclosed invention introduces an advanced Visual Alarm and Guidance System designed to significantly enhance safety in industrial environments. This innovative system integrates state-of-the-art computer vision and light projection technologies, along with trajectory prediction algorithms, to dynamically identify potential hazards and guide workers in real-time out of potential collision pathways. It marks a considerable advancement over traditional safety methods by not only detecting imminent dangers but also providing clear, visual navigation aids. This system is adaptable to various high-risk settings, seamlessly integrates with existing infrastructures, and offers a novel approach to real-time, visual safety management in industrial settings.

The invention relates to the technical field of engineering machinery, and discloses an engineering machinery active safety control method and device based on multi-parameter analysis, and the method comprises the steps: collecting the multi-modal data of an environment where the engineering machinery is located based on a multi-modal data collection device, and constructing a dynamic model of the engineering machinery and the environment according to the multi-modal data, analyzing the multi-modal data through a dynamic model to obtain an environment data analysis result and an equipment data analysis result, determining an operation risk level of the engineering machinery according to the environment data analysis result and the equipment data analysis result, and determining an optimal working path of the engineering machinery according to the multi-modal data. And generating a safety control strategy according to the operation risk level and the optimal working path. Therefore, by implementing the method, the evaluation accuracy of the operation risk can be improved, the probability of misoperation of operators is reduced, the operation accuracy and reliability of the engineering machinery are enhanced, and the operation efficiency, the operation stability and the operation safety of the engineering machinery are further improved.

The invention relates to the technical field of verification and evaluation, in particular to a reusable rocket attitude control system redundancy verification and fault tolerance evaluation method, which comprises the following steps: performing multi-dimensional combination on disturbance units according to disturbance types, action time periods and intensity grades to form a disturbance combination set, constructing a group of induction task profiles covering different attitude control abnormal situations; recording a switching state of an internal control path of the attitude control system, a redundant component intervention time sequence and a function takeover sequence in real time, and constructing a dynamic response path map of a redundant link; and generating a response integrity index and a fault tolerance conflict degree criterion of redundancy configuration as a fault tolerance capability evaluation result of the attitude control system. Compared with an existing method which only verifies individual static disturbance scenes, the method has the advantages that systematic design and composite excitation of disturbance conditions can be realized, scene complexity and coverage of redundancy verification are enhanced, and authenticity and representativeness of fault-tolerant testing are improved.

The invention discloses a gain balance fault-tolerant control method for a redundant drive multi-degree-of-freedom motion platform, and the method comprises the steps: designing a corresponding output decoupling matrix # imgabs0 # for the condition that any actuator of the redundant drive multi-degree-of-freedom motion platform is completely invalid, and enabling the output decoupling matrix # imgabs0 # to be switched through a gain balance module when the actuator is invalid; and a logic axis control signal ucor after a single actuator is completely invalid is redistributed to the rest actuators to generate uact which is the same as uact before a fault, so that the motion platform system P can still track a reference position signal r, and the reliability and fault tolerance of the redundant drive multi-degree-of-freedom motion platform system are remarkably improved. According to the method, a good motion control effect is achieved under the condition that the actuators are free of faults, high tracking precision is achieved, a good fault-tolerant control effect can be achieved under the condition that the single actuator of the redundant drive multi-degree-of-freedom motion platform is completely invalid, and closed-loop stability and tracking precision of a motion platform system can be guaranteed.

The invention discloses a multistage redundant servo control system and a control method. The control system comprises a redundancy control module, a steering engine control module and a position acquisition module. The redundancy controllers of the redundancy control module communicate with one another, a certain redundancy controller is determined to be a master redundancy controller based on a first selection mechanism, and other redundancy controllers are determined to be slave redundancy controllers; the main redundancy controller judges a target control command from a plurality of input commands according to a second selection mechanism; determining target position data from the plurality of position data according to a third selection mechanism; determining a target steering engine control branch from the multiple steering engine control branches according to a fourth selection mechanism; and the main redundancy controller generates a steering engine control instruction based on the target control command and the target position data, and sends the steering engine control instruction to the target steering engine control branch to control the operation of the corresponding motor. According to the technical scheme, a servo control system with better redundancy can be formed, and the stability and reliability of system operation are effectively improved.

The invention provides an aircraft hydraulic servo actuation control system, which relates to the field of hydraulic servo electronic control, and comprises a main flight control system, a backup control system, an enhanced electronic unit and a tail end actuator, the main flight control system is connected with the enhanced electronic unit through a first MCB communication bus, the backup control system is connected with the electronic unit through a second MCB communication bus, and the main flight control system is switched to the backup control system when power supply or communication abnormity occurs in the main flight control system; the enhanced electronic unit is connected with the actuator; the enhanced electronic unit comprises a public area, an instruction channel and a monitoring channel, and the instruction channel and the monitoring channel are used for monitoring the health state and data validity of the first MCB communication bus or the second MCB communication bus in real time. According to the invention, bidirectional switching between the main flight control system and the backup system of the enhanced electronic unit is ensured, uninterrupted work is kept, and the working reliability of the hydraulic servo actuation control system is effectively improved.

The invention relates to the technical field of motion redundancy parallel robot control, in particular to a method for designing a 2R1T motion redundancy parallel robot high-performance hierarchical synchronous controller based on time delay estimation, which enables a system to estimate current kinetic parameters in real time by introducing a time delay estimation technology, and enables the current kinetic parameters to be estimated in real time in a high-speed motion state. On the basis of the problems of uncertainty, nonlinearity and the like of robot dynamic parameters, dynamic data predicted in real time is used as feed-forward input, so that excessive redundant calculation is avoided, and the efficiency of a control algorithm is optimized; by introducing hierarchical synchronous control, the error difference between redundant degrees of freedom is overcome, the motion precision of a hierarchical driver and the stability of the system are ensured, and the dynamic response of the robot and the robustness of the system are optimized by taking a time delay estimation technology as dynamic feed-forward compensation; and the coordination problem of redundant degrees of freedom is disassembled into a plurality of sub-problems through layered synchronous control, so that the motion coordination and control precision of the robot is improved.

A safety status monitoring system and method includes a master control chip to issue a master control chip hardware failure signal; a power management chip; a bus voltage comparator; a three-phase bridge switching circuit; a safety control logic generator to generate a hardware failure mode enable signal and a hardware failure status control signal based on the master control chip hardware failure signal, safety status entry and safety status switching signals; a gate driver to generate gate drive signals based on the hardware failure mode enable signal and the hardware failure status control signal to perform on / off operations on power transistors in the three-phase bridge switching circuit; and a drive safety status monitor to generate a drive safety status feedback control signal based on the hardware failure mode enable signal, the hardware failure status control signal, a gate driver failure status signal, and a power transistor working status signal.