116results about "Sampled-variable control systems" patented technology

The present invention relates to a multi-region collaborative control method and device for a high-precision pressure sensor array. The method: based on a first collaborative sampling parameter, data is collected from multiple sensor units in a pressure sensor array to obtain a pre-processed pressure data set and a sensor unit spatial position matrix; a spatial weighted pressure covariance matrix is ​​constructed; eigenvalue decomposition and information entropy calculation are performed, and the number of target pressure points is determined according to the minimum description length criterion and the information gain ratio; a pressure feature subspace and a local perception domain are constructed; the pre-processed pressure data set is projected onto the pressure feature subspace to generate a sensor unit state data set; a multi-layer attention encoder is input for processing, and the first collaborative sampling parameter of the pressure sensor array is adjusted to obtain a second collaborative sampling parameter. The implementation of the present invention improves the system's response sensitivity to local pressure changes, thereby realizing multi-region collaborative control of pressure sensing.

The invention relates to a construction and data acquisition method and system of a gear motor control network, and belongs to the technical field of gear motor control. Torque data characteristic change data based on a time sequence is constructed, and a dynamic Bayesian network is introduced; inputting the torque data characteristic change data based on the time sequence into a dynamic Bayesian network to perform observation state updating, and obtaining the updated torque data characteristic change data based on the time sequence through the observation state updating; and carrying out torque state abnormity identification and analysis on the updated torque data characteristic change data based on the time sequence, and generating a related control strategy based on an abnormity identification analysis result. By constructing the speed reducer control network, a plurality of speed reducing motors can be monitored, so that abnormal conditions of the speed reducing motors are found in time, the speed reducing motors are controlled in time, abnormal use of the speed reducing motors is avoided, and the service life of the speed reducing motors is prolonged.

A sensor device includes an output driver configured to: adjust a first time interval of the output signal between a first signal edge of a first type and a first signal edge of a second type based on a first reference value; adjust a second time interval of the output signal between the first signal edge of the second type and a second signal edge of the first type based on a second reference value; adjust a third time interval of the output signal between the second signal edge of the first type and a second signal edge of the second type based on a first data value; and adjust a fourth time interval of the output signal between the second signal edge of the second type and a third signal edge of the first type based on a second data value.

The disclosed method for manufacturing a concrete product includes performing, in a curing chamber, a carbonation curing process on a formed intermediate of the concrete product, monitoring one or more product properties of the formed intermediate during the carbonation curing process, and terminating the carbonation curing when a detected change in the one or more product properties of the formed intermediate, or in a rate of change of the one or more product properties of the formed intermediate, reaches or exceeds a predetermined threshold value.

A kitchen device (100) including: abase (102) having a mechanism (118) that is operated using electrical power to cause processing of food; a vessel (104) removably mounted on the base (102) and including a bottom wall (108), a side wall (110) extending upwardly from the bottom wall (108) to a rim (112) so as to provide a space (114) to receive the food to be processed, with the rim (112) surrounding an opening (116) to the space (114); a lid (106) removably coupled to the rim (112) so as to at least partially close the opening (116); and an interlock system (120) operatively associated with the mechanism (118) to permit the delivery of the electric power to the mechanism (118), the system (120) including a first interlock circuit (122) and a second interlock circuit (124), wherein delivery of the electric power to the mechanism (118) is permitted by the completion of the first interlock circuit (122) and activation of the second interlock circuit (124), wherein the first interlock circuit (122) includes a first coupling (126) to complete the first circuit (122), the first coupling (126) including a first portion (128) mounted to the lid (106) and a second portion (130) mounted to the vessel (104) adjacent the rim (112) so that the first portion (128) is located adjacent the second portion (130) when the lid (106) is coupled to the rim (112) thereby completing the first circuit (122), and wherein the second interlock circuit (124) includes a second coupling (136) to activate the second interlock circuit (124), the second coupling (136) including a first portion (138) that is part of the second interlock circuit (124) and mounted to the base (102), the first portion (138) being operatively associated with a second portion (140) that is mounted to the vessel (104) and part of the first interlock circuit (122), wherein completion of the first interlock circuit (122) causes operation of the second portion (140) of the second coupling (136), thereby causing operation of the first portion (138) of the second coupling (136) to thus activate the second interlock circuit (124) and permit delivery of the electric power to the mechanism (118).

The invention relates to the technical field of data acquisition, in particular to an equipment target control data acquisition system and method, and the system comprises a state potential energy module, a speed projection module, a trajectory fusion module, a collaborative preloading module and an acquisition trigger module. According to the method, a potential function sequence is constructed by obtaining an angular velocity change rate and angular momentum, a characteristic stable section is determined by comparing an identification change point with a fall-back point, attitude stability description is improved, characteristic capture under interference is carried out, an included angle rate is calculated by using inertial navigation velocity projection filtering, and a motion mode analysis section and a data quality focusing key interval are determined by comparing. A multi-node early warning section is determined by fusing radar coordinate trajectory recognition composite section and analysis section time overlapping, early warning accuracy is enhanced by combining internal and external information, a unified scheduling instruction is generated to cooperate with preloading to improve timeliness, a sensor is activated according to the instruction to record and store, accurate and loss-free cooperative acquisition in a key period is guaranteed, and data integrity is improved.

This data collection device acquires a plurality of pieces of variable data each of which is measured or calculated for each sampling period in a control system. The data collection device comprises: a user input unit that allows a user to select any of the plurality of pieces of variable data; and an explanatory image display unit that displays an explanatory image indicating the corresponding position, in the control system, of the piece of variable data selected by the user via the user input unit.

The present disclosure is directed to a method for controlling rotors of a rotorcraft system comprising the steps of: receiving air velocity data, first and second rotors rotational angular velocity data, external air temperature data and rotorcraft altitude data by the control module; calculating air velocity over the plurality of blades based on the received data using the control module; calculating, based on the calculated air velocity, if one or more retreating blades of one of the first and second counterrotating rotors are generating insufficient lift; and sending one or more actuation signals from the control module to the electric motor and / or actuators of the other of the first and second counterrotating rotors to maintain a predetermined amount of lift.

A cooking appliance (100) including: a heating element (102) and / or a motor (104) for processing a food item from a first state to a desired state, each state being associated with a physical quantity; a sensor (106) to measure the physical quantity; a microcontroller (110) configured to control the heating element and / or the motor at one or more set points; and a memory (120) connected to the microcontroller (110) for storing information, the memory (120) storing a loss function and a sensor function; wherein the microcontroller (110) receives sensor information from the sensor (106) related to the physical quantity and is configured to: commence processing of the food item by activating the heating element (102) and / or the motor (104); at time tn, determine a first probability associated with the food item being in the first state or the desired state based on the sensor information and the sensor function; determine a loss value for each set point of the heating element (102) and / or the motor (104), the loss value being based on the first probability and the loss function; and operate the heating element (102) and / or the motor (104) at the respective set point with the lowest loss value.

A diagnostic system includes a controller for controlling the operation of a mass flow controller. The controller is communicatively coupled to a valve and at least one sensor and is adjusted to control the valve based on a predetermined set point value and communication from the at least one sensor. The controller determines at least one predetermined value associated with a reverse flow of a fluid and causes the controller to enter a hard fault or safe state. The predetermined value of the flow is a certain percentage of the total flow or a certain percentage of the total flow over a period of time. The controller can record a date, time, and a device identifier in response to determining the at least one predetermined value. In addition, the diagnostic system can include a central controller configured to receive diagnostic data from multiple controllers and control the operation of these controllers.

The invention discloses a pump room data acquisition device, relates to the technical field of data acquisition, and solves the problems that repeated data is too high and associated data are asynchronous during data acquisition. The method comprises the following steps: determining a related duration set of continuous durations associated with corresponding repeated data, performing interval analysis on the duration set, locking an optimal unified collection frequency of multiple collection items based on a specific analysis result, and subsequently performing data collection on a specified collection item according to the unified collection frequency. The probability of repeated data occurrence is fully reduced in the process of guaranteeing the consistent collection frequency, so that when the data corresponding to the associated collection item set is collected, not only can the synchronism be guaranteed, but also the repeatability of the data occurrence can be fully reduced.

A computer-implemented system including a plurality of environmental parameter sensors affixed to, or associated with, a building including a plurality of sensors affixed to components of the building façade and configured to continuously monitor one or more environmental parameters; the plurality of sensors in data communication with a data recordal device configured to capture sensor data generated by the plurality of sensors; and a computing device in communication with the data recordal device including one or more processors that receive and process the sensor data captured by the data recordal device to thereby assess the performance of the building façade.

An adapter device and / or a thermostat device for use during installation and testing of in-floor heating systems. The adapter device allows for temporary electrical interconnection between a mat and an alternating current (AC) power source, and includes at least one switch configured to actuate based on a user-supplied force (e.g., a finger press) to temporarily electrically couple the mat to an AC power source. The at least one switch is further configured to automatically de-actuate in the absence of the user-supplied force to electrically decouple the mat from the AC power source. The thermostat device includes at least one integrated power measurement circuit for testing and diagnostics of an in-floor heating system.

Operator interface device for a process control system comprising: a display; an operator display module for presenting an operator application on the display; an alarm presentation interface to be presented on the display via the operator application, wherein the alarm presentation interface includes a timeline to graphically indicate a temporary relationship of a plurality of active alarms of the process control system by displaying an icon associated with each of the active alarms along the timeline, characterized in that a manual control action is presented on the timeline to indicate a temporary relationship of the manual control action to the active alarms, or a process state change is presented on the timeline to indicate a temporary relationship of the process state change to the active alarms.

The present invention relates to a high-speed storage apparatus for hydraulic shock data on water level and flow rate, which detects fluctuations in the water level and flow rate of a pipeline through a sensor so as to store per-second sampled data in data blocks of an internal storage device in real time, and, in particular, separately stores raw data in a separate data block of the internal storage device for a predetermined period of time before and after an event occurs because of a hydraulic shock, thereby ensuring big data about changes in sensor detection signals, and thus a stable pipeline can be designed in consideration of hydraulic shock.

A computer-implemented method for thinning scalar measurement data to reduce storage space required in a second data storage device to store the scalar measurement data, wherein the scalar measurement data was initially recorded in a first data storage device during a measurement period, the method comprising: (a) accessing the scalar measurement data from the first data storage device; (b) defining an amplitude range with which a plurality of amplitude values ​​of the scalar measurement data are compared; (c) setting a first or subsequent one of the amplitude values ​​as a reference amplitude value and setting a time corresponding to the first or subsequent one of the amplitude values ​​as a reference time value; (d) storing the reference amplitude value and the reference time value in the second data storage device; (e) accessing a next amplitude value of the plurality of amplitude values ​​from the first data storage device; (f) Determine whether an absolute difference between the reference amplitude value and the nearest amplitude value is greater than the amplitude range, and if the absolute difference between the reference amplitude value and the nearest amplitude value is not greater than the amplitude range: - discarding the next amplitude value by not storing it in the second data storage device; - Calculating an average measurement value based on a sum of the discarded next amplitude value and the previously discarded amplitude values ​​that are temporally adjacent to the discarded next amplitude value; - calculating a time gap value indicating a total time duration associated with the discarded next amplitude value and the previously discarded amplitude values ​​that are temporally adjacent to the discarded amplitude value; and - storing the average measurement value and the time gap value in the second data storage device; and - Go to step (g) or if the absolute difference between the reference amplitude value and the nearest amplitude value is greater than the amplitude range: - storing the next amplitude value and a time at which the next amplitude value was recorded in the second data storage device; and - setting the next amplitude value as the reference amplitude value and setting the time at which the next amplitude value was recorded as the reference time value; and (g) repeating steps (e) and (f) until all scalar measurement data recorded during the measurement period have been processed; and (h) generating a graphical amplitude-time representation of the scalar measurement data stored in the second data storage device, the graphical representation including one or more data gaps caused by discarding amplitude values ​​in step (f), the one or more data gaps having a time duration corresponding to the time gap value, and the amplitude values ​​discarded in step (f) in the one or more data gaps being replaced by artificially generated amplitude values ​​having amplitudes randomly distributed around the average measurement value.

The present disclosure discloses a system and a method for mitigating data drift in an industrial plant. The method includes monitoring, by a processor (202), one or more process parameters associated with an industrial plant (102). The method includes detecting, by processor (202), a drift in one or more process parameters based on a deviation from one or more predefined process parameters. The method includes determining, by processor (202), one or more drift context and process context based on drift and one or more process parameters. The method includes determining, by processor (202), sampling strategy from plurality of sampling strategies based on one or more drift and process context for sampling one or more process parameters using first Artificial Intelligence (AI) model (216). The method includes training, by processor (202), second Al model (302) based on sampling strategy for mitigating data drift.

An apparatus for controlling fluid flow and in particular fluid flow through a microfluidic multi-port control valve assembly of a High Pressure Liquid Chromatography (HPLC) unit. The flow control apparatus has a localized data repository for storing local valve position data and cumulative wear indications of components of the apparatus. The stored information travels with the apparatus allowing for more reliable predictive failure of components of the apparatus and translation of local valve position data for compatibility with host valve information. The translated valve position data enables determination of whether valve motion is acceptable and complete.

To suppress increases in a communication load of a server and in data stored in the server.SOLUTION: An operation information management method includes detecting an access frequency for each user to farming information that represents an indicator of a work performed in a field by a work apparatus 11. The operation information management method includes determining for each user a sampling interval acquiring operation information that represents an operating state of the work apparatus 11. Determining the sampling interval for each user may include determining a position of the access frequency of a corresponding user in a distribution of the access frequency, and determining the sampling interval based on the position of the access frequency.SELECTED DRAWING: Figure 5

A computer-implemented system including a plurality of environmental parameter sensors affixed to, or associated with, a building including a plurality of sensors affixed to components of the building façade and configured to continuously monitor one or more environmental parameters; the plurality of sensors in data communication with a data recordal device configured to capture sensor data generated by the plurality of sensors; and a computing device in communication with the data recordal device including one or more processors that receive and process the sensor data captured by the data recordal device to thereby assess the performance of the building façade.

The present invention relates to an evaluation method for an oilfield produced water treatment system in the field of oilfield produced water treatment technology. By regularly extracting water samples from each unit of the produced water treatment system on-site and detecting the light transmittance and potential value, an evaluation model and an evaluation method are designed to realize the evaluation of the treatment efficiency and stability of each treatment unit and the overall treatment system of the produced water treatment system, and solve the problem that it is difficult to quickly quantify the on-site evaluation of chemical agents such as destabilization treatment during the produced water treatment process.

Sparkline presentation of process control system alarms is described. An operator interface device for a process control system includes an operator display module for presenting an operator application on a display, the operator interface also including an alarm presentation interface presented on the display via the operator application, the alarm presentation interface including sparklines associated with alarms to graphically indicate trends of process variables relative to alarm limits associated with the alarms.

The analog input acquisition system comprises a sensor module, an acquisition circuit unit and an MCU module, the sensor module is connected with the input end of the acquisition circuit unit through a signal input interface, and the output end of the acquisition circuit unit is connected with the input end of the MCU module. The acquisition circuit unit comprises an anti-interference circuit, a sampling circuit and a protection matching circuit which are connected in sequence, and the sampling circuit realizes switching of voltage or current acquisition channels through an MOS tube and a resistance network; the MCU module is internally provided with an ADC module used for analog-to-digital conversion, outputs a low-frequency sine disturbance signal of a high-frequency carrier wave to the sampling circuit through a PWM port, and performs mean filtering and digital low-pass filtering processing on conversion data of the ADC module. According to the invention, the complexity of the circuit structure is reduced, the cost is reduced, and the sampling reliability, the acquisition resolution and the precision are improved.

The invention provides a coal sampling system, method and device, electronic equipment and a storage medium, the coal sampling system comprises a control system, sampling machine equipment and a sensor, the control system is used for sending a control signal to the sampling machine equipment through a triggered control instruction; the sampling machine equipment is used for starting a corresponding working mode according to a working mode signal in the control signal; the working mode is at least used for automatically starting an auxiliary sampling head of the sampling machine equipment for sampling after a main sampling head of the sampling machine equipment performs sampling; the sampling machine equipment is also used for carrying out coal sampling treatment according to the working mode; the sensor is used for acquiring sampling data in a coal sampling treatment process; the control system is further used for monitoring the coal flow state in the coal sampling treatment process according to the sampling data. According to the embodiment of the invention, the sampling head corresponding to the original single-side belt is independently and manually sampled, so that the sampling heads corresponding to the double-side belts are started to operate and automatically sample along with the belts, and the sampling efficiency and the sampling representativeness are improved.

A management component for a sensor system including a plurality of sensors, wherein the management component is configured to: receive data from a first sensor of the sensor system, wherein the data relates to at least one of a plurality of predetermined observations performed by the first sensor; based on the received data, select at least one second sensor of the sensor system; transmit at least one instruction based on the received data to the selected at least one second sensor.

A method of sensor placement and design with control-related objective relates to implementation of steps that consist in evaluating the correct design and placement of specific sensors for data collection with the highest degree of prioritization, their subsequent verification and validation, and then adjusting the design and placement to achieve the desired data output. The method comprises defining an optimal control problem followed by specifying the properties of sensors that could be deployed and deciding on the deployment of sensors and deciding adjustable properties of the deployed sensors so as to optimize the control performance, in terms of the objective function of the optimal control problem. Advantageously, the method employs defining a model-predictive controller for the optimal control problem, wherein the model-predictive controller first estimates the state of the system utilizing sensor data, and subsequently chooses the control signal so as to optimize the objective function of the optimal control problem over a certain finite time horizon, and in the final step, the control performance of the model-predictive controller is expressed in terms of the objective function of the optimal control problem over a certain time horizon.

a motor control device is used to control a drive circuit to drive a motor to operate, and the motor control device includes a control module, an angle sensing device, and a current sensing device. The control module is use to count a plurality of first specific cycles and a plurality of second specific cycles, and provide a count value that increases with time during each first specific cycle. The angle sensing device is use to sample an angle parameter of the motor at a first time of each first specific cycle according to a resolver ISR, and the current sensing device is use to sample a current parameter provided by the drive circuit at a second time of each second specific cycle according to a current ISR. The control module compensates the angle parameter according to each ISR and the timestamp.

A management component for a sensor system including a plurality of sensors, wherein the management component is configured to: receive data from a first sensor of the sensor system, wherein the data relates to at least one of a plurality of predetermined observations performed by the first sensor; based on the received data, select at least one second sensor of the sensor system; transmit at least one instruction based on the received data to the selected at least one second sensor.