11 results about "Lag time" patented technology

The invention relates to the technical field of control system monitoring, and discloses a control system real-time monitoring method based on multi-unit cooperation, which comprises the following steps: receiving an initial adjustment instruction, recording a first moment, and inputting a monitoring signal sequence of a controlled unit into a comparator for setting a dynamic dead zone threshold; extracting a second moment when the signal amplitude exceeds the threshold value, and calculating a time domain difference value of the two moments to obtain response delay time; calculating a deviation value between the response delay time and a standard period to generate a feed-forward gain compensation parameter; when the polarity of a signal is reversed, a differential control instruction is issued according to a feed-forward gain compensation parameter, and a local communication receiving port is blocked. Physical action delay time is converted into bottom-layer mechanical retardation measurement, irreversible friction loss of a physical device is offset through feed-forward compensation; and high-frequency redundant pseudo signals are accurately filtered out to ensure the smoothness of a communication bus and maintain the stability of multi-unit cooperative adjustment under complex working conditions.

This invention relates to the field of structural engineering testing and discloses a method for the coordinated acquisition and fusion of deflection and strain in static load tests of structural components. The method includes: monitoring local strain physical quantities and calculating real-time strain rate; identifying the strain mutation initiation signal when the strain rate exceeds a threshold; retrieving the relative physical span between sensing nodes and the intrinsic stress wave velocity of the material; calculating the physical lag time; sending a hardware interrupt pulse carrying a time delay parameter to the deflection sensing node; driving the hardware circuit to activate a timing response matching the physical lag time; and capturing the macroscopic deflection physical quantity at the end of the timing. This invention eliminates the perception phase misalignment caused by spatial span by constructing a hardware sampling alignment mechanism driven by physical causality, ensuring that the acquired data conforms to the structural mechanics constitutive relationship, and improving the system's accuracy in identifying structural damage evolution characteristics.

The application provides a cross-clock domain time information correction method and a distributed system thereof. The method comprises the following steps: a sub-node sends a digital signal carrying its own clock and data information to a master node, and then the master node recovers the sub-node clock and data; the master node is configured with a sub-node clock counter and a master node clock counter; the master node samples one clock by using the other clock, and when the lag time between the two clocks reaches a single period of the clock with a higher frequency, the sub-node clock counter is adjusted to keep the two clock counters consistent; and the time stamp of the data of the sub-node in the master node clock domain is obtained through the sub-node clock counter and the master node clock. The application has a simple structure, saves the calculation cost, and has high time measurement precision.

The invention relates to a method for testing the lag time of a vacuum double-chamber furnace for a fastener. The method comprises a test process of calculating the lag time of the fastener by taking heating at a preheating temperature K1 as a starting point. According to the technical scheme, the heating chamber of the vacuum double-chamber furnace is cooled to the preheating temperature K1 from the solid solution temperature, and the fastener enters the heating chamber of the vacuum double-chamber furnace from the preheating temperature K1 to be heated to the solid solution temperature, so that the situation that the heating chamber of the vacuum double-chamber furnace is heated to the solid solution temperature from the room temperature and then cooled to the room temperature is avoided; the problem that in the prior art, the cooling process of a vacuum double-chamber furnace is long in period is solved.

Accepted events are processed. Each accepted event is associated with a respective ingested timestamp, a respective processing-start timestamp, and a respective processing-complete timestamp. Events are accepted at a rate of a target rate limit. A current error value is obtained as a difference between a target lag time and a second value. The target lag time indicates a configured maximum time within which an accepted event is to be processed. The second value is an average of differences between the respective processing-complete timestamps and the respective ingested timestamps. A base throttle is obtained based on previous error values and the current error value. The base throttle is smaller than the target rate limit and indicates a maximum number of events per a unit of time to be accepted for processing. Subsequent events are accepted at a new rate obtained from the base throttle.

The application discloses a synchronization method for eliminating multi-axis interpolation response lag and an industrial operation device, and relates to the technical field of industrial operation devices.The technical scheme of the application comprises determining the response lag time of each of a driving shaft and a driven shaft, determining the response lag time difference of the driving shaft and the driven shaft according to the response lag time of each of the driving shaft and the driven shaft, shifting the original instruction position data sequence of the driving shaft on a time axis based on the response lag time difference, generating a virtual driving shaft position data sequence lagging behind the original instruction position data sequence on the time axis, and controlling each driven shaft to move with the virtual driving shaft position data sequence as a following target, so that the actual position of each driven shaft and the actual position of the driving shaft tend to be synchronized.The application can make the actual following position of a linear shaft and the actual instruction position of a rotary shaft in multi-axis interpolation movement synchronous in time, avoid machining track deviation, and improve product yield.

The invention relates to the technical field of industrial control, and discloses a dual-module control system and method based on multi-sensor fusion and adaptive collaboration, and the system comprises a sensing processing unit, a first control module, a second control module and a collaborative arbitration module, the logic phase of the first control module is mapped to the second control module in real time through a state shadow register, and the second control module is triggered to compensate the calculation logic before a preset action threshold value according to the total response deviation determined by the action lag time of the execution mechanism and the medium transmission lag time; according to the method, the time domain normalization alignment of the compensation gain and the basic control instruction at the physical action starting point of the controlled object is realized, the logic out-of-step phenomenon generated by physical inertia in industrial control is eliminated, and the action certainty in the production process is guaranteed.

A method for estimating a cuttings lag time during a drilling operation includes circulating a drilling fluid in a wellbore for drilling. A plurality of radio frequency identification device (RFID) tags and / or colored dyes are introduced into a circulating drilling fluid while drilling. A time of arrival of the RFID tag or colored dye at the ground is evaluated to estimate a cuttings lag time.

A device for continuously monitoring glucose levels in a patient includes a lead assembly in electrical communication with an electronics assembly. The electronics assembly is configured to be positioned in the subcutaneous tissue and the lead assembly is configured to be positioned in a vessel of the patient, such as in a vein or in an epidural space. The lead assembly has a lumen, and includes at least one electrode in electrical communication with the electronics assembly.

The application discloses a data quality analysis system and method for an application authorization platform, and relates to the technical field of data quality management.The method comprises the following steps: performing timeliness detection on authorization data, generating a timeliness anomaly list and a lag time vector according to a dynamic timeliness judgment threshold; performing accuracy verification by taking the list and the vector as input, and generating an accuracy anomaly mark; performing consistency verification based on the list and the vector, and recording a broken node and an abnormal conduction path; tracing a root cause according to a cause-effect correlation rule in combination with the abnormal conduction path and the lag time vector, triggering a self-healing operation according to a root cause type and a historical repair success rate; iteratively rechecking until the data is qualified; storing the repair success rate, dynamically updating the timeliness judgment threshold and the cause-effect correlation rule weight based on the repair success rate, and adjusting a detection sequence or an execution frequency. The application realizes abnormal time sequence sorting and cause-effect tracing through the lag time vector and the abnormal conduction path, accurately locates a root cause node causing a chain reaction, and inhibits the diffusion of authorization link faults.

Motion planning generates a motion plan for a robot operating in a shared workspace, the motion plan including a nominal trajectory (e.g., a specified trajectory). An acceptable lag time is determined for the nominal trajectory, where compliance with the acceptable lag time during actual operation can ensure collision-free operation. Actual operation of the robot (e.g., an actual trajectory) is monitored for compliance with the corresponding acceptable lag time. Optionally, remedial measures are selected and / or taken as necessary (e.g., actual lag time approaches or exceeds a margin or threshold, such as the corresponding acceptable lag time). Motion planning can employ the determined acceptable lag time to select trajectories, thereby providing the robot with more robust operation.