34 results about "Motor time" patented technology

A method for recognizing an obstructed situation of a traveling element. The method includes evaluating a variable containing information about the motor's rotational speed as the motor is driving the element. Starting from a current detection time point, the sequence of values of the variable determined at immediately preceding detection time points are observed. Change in behavior of the sequence of observed values of the variable with respect to one another over time are then compared with a value range of the variable that is indicative of the element being obstructed. A sufficient match between the value range of the variable and the sequence of observed values of the variable exists if at least three successive observed values of the variable fall within the variable value range. The element is determined to be obstructed upon the existence of a sufficient match. The variable includes the duration of motor time periods.

The invention discloses a networked brushless direct current motor time-delay compensation and control method using the active-disturbance-rejection control technology. The method comprises the steps of (1) establishing a brushless direct current motor control system model containing time-varying network-induced delay, wherein the brushless direct current motor control system is described as a discrete time linear time-varying system containing single-step input time lag, and then the uncertain dynamic state, caused by time-varying delay, of the system is partially described as the additive noise of the system; (2) designing an extended state observer which is used for estimating the uncertain dynamic state caused by time-varying delay as a part of total disturbance; (3) conducting compensation on the time-varying delay item in the brushless direct current motor control system. The method can be used for effectively conducting real-time estimation and compensation on the uncertain dynamic state caused by time-varying network-induced delay by means of the extended state observer, and can well restrain the uncertainty caused by time delay, internal and external disturbance of the system and model uncertainty.

The invention discloses a multifunctional communication method for an integrated variable frequency motor and relates to a variable frequency motor communication method. For monitoring and control on a common motor, fault feedback is realized only through a relay, real-time monitoring on each motor state in a group can not be realized, and reasonable distribution of the motor time and a rotation speed on the basis of external factors can not be realized. According to the multifunctional communication method, a communication protocol for data transmission between an integrated variable frequency motor system and a host computer is set to realize monitoring and control on the integrated variable frequency motor, monitoring and control authorities are divided, and monitoring and control in corresponding grades are respectively carried out by the host computer according to different authorities. According to the method, polling for each motor state in the group can be realized through communication monitoring, during communication abnormity, the motor automatically shuts down to protect the system, so safety and reliability are realized.

The invention relates to a variable-step-length dynamic compression method for real-time monitored data in a mine environment, belonging to a time sequence data compression method. The method is a variable-step-length data compression method, which is designed for the real-time performance, the timeliness, the multi-source performance and the massive performance of monitored data of a mine hydrological sensor; sample characteristics of monitored data of the mine environment are analyzed, so that an real-time early warning level dividing point of the mine environment is calculated; the event early warning level of the mine environment is comprehensively calculated; compression step lengths of real-time and historical monitored data are respectively calculated; and a compression algorithm of the historical and real-time monitored data is designed. By means of the variable-step-length dynamic compression method for the real-time monitored data in the mine environment disclosed by the invention, a monitored data sample of the mine environment can be dynamically adjusted; the event early warning level of the mine environment is calculated; a monitored data compression function having the variable compression step length can be realized; by means of the method, the change tendency of the monitored data can be reflected as much as possible; while motored time sequence data characteristics are reserved, the data storage space and the time can be simplified; and the monitored data inquiry and display efficiency can be increased.

The invention relates to a method for controlling the time operation of a DC motor of a vehicle-mounted air conditioner controller. End open-circuit voltage position, feedback end short-circuit voltage position and the running distance of each cycle, read the current DC motor feedback end voltage position, (2) motor start judgment, (3) motor operation, (4) motor time learning, using the above The technical solution, the present invention provides a method for controlling the time operation of the DC motor of the vehicle-mounted air conditioner controller, regardless of whether the DC motor has a feedback terminal, and regardless of whether the feedback terminal fails, the DC motor can continue to run according to the time, thereby ensuring that the vehicle The air conditioning system can work normally, which improves the safety factor of driving.

The invention discloses a method and system for eliminating motor instability data based on electrical distortion analysis, including: setting motor operating state threshold data according to the magnitude of electromagnetic interference at the on-site signal acquisition end, and judging the current state of the motor; using limiting filtering and two-order Jump limit filtering algorithm, filter data and extract the characteristics of the motor running state; capture the characteristic points of the motor time, calculate the motor start start, start end, stop start, stop end time, judge the current sampling data stable operation data length and analyze and identify the current time Data, keep high-quality data. The present invention provides high-quality sampling data for motor fault diagnosis and prediction tasks, effectively improving motor fault diagnosis and prediction systems and other motor on-line monitoring systems in practical applications due to low data quality resulting in fault misjudgments and missed judgments, and fault evolution trends are not stable. Accuracy and other issues have improved the application value of this type of system in engineering practice.