36 results about "Corrective control" patented technology

A closed loop power output calibration system for variable power output wireless devices. The wireless device includes a wireless transceiver having a transmit core coupled to a discrete power amplifier. Power detection circuitry formed in the wireless transceiver provides a detected power level of the power amplifier, and a reference power level, both of which are converted to digital signals using existing I and Q signal analog to digital converters in the receiver core. The digital signals are processed to cancel power distortion and temperature effects to provide a resulting power feedback signal. Corrective control signals are generated in response to the power feedback signal relative to a desired power output level. The gain in the transmit core is then adjusted in response to the corrective control signals such that the power amplifier outputs the target output power level.

A business process modeling framework is used for data quality analysis. The modeling framework represents the sources of transactions entering the information processing system, the various tasks within the process that manipulate or transform these transactions, and the data repositories in which the transactions are stored or aggregated. A subset of these tasks is associated as the potential error introduction sources, and the rate and magnitude of various error classes at each such task are probabilistically modeled. This model can be used to predict how changes in transactions volumes and business processes impact data quality at the aggregate level in the data repositories. The model can also account for the presence of error correcting controls and assess how the placement and effectiveness of these controls alter the propagation and aggregation of errors. Optimization techniques are used for the placement of error correcting controls that meet target quality requirements while minimizing the cost of operating these controls. This analysis also contributes to the development of business “dashboards” that allow decision-makers to monitor and react to key performance indicators (KPIs) based on aggregation of the transactions being processed. Data quality estimation in real time provides the accuracy of these KPIs (in terms of the probability that a KPI is above or below a given value), which may condition the action undertaken by the decision-maker.

The invention discloses a method of underground scooptram autonomous travel, obstacle avoidance motion control and target path planning. Firstly a main target path is planned according to underground tunnel conditions. Then a local obstacle avoidance target path which is attached on the main target path is planned, main target path data, an initial point, a termination point and offset distance data relative to the main target path of the local obstacle avoidance target path are stored in a scooptram controller. A transverse position deviation, a course angle deviation and a course angle deviation change rate are calculated through measuring data of a measuring system or a track prediction model, the three deviations form comprehensive deviation feedback signals through a fusion rule, the comprehensive deviation feedback signals serve as the input quantity of proportion integration differentiation (PID) corrective control, a control command is input to an electric-hydraulic proportional steering control system of the scooptram, a vehicle is driven to steer and track the target path, underground scooptram autonomous navigation and the obstacle avoidance motion control are achieved, and the method is convenient to use, flexible and reliable.

Provided is a method for producing image using a photothermographic material in which the photothermographic material is exposed with a laser light using an image producing apparatus having a recording section and heat developing section, and then developed by heating, the photothermographic material containing elsewhere at least on one plane of the a support at least one kind of photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ion and a binder; characterized in that the photosensitive silver halide contains an iridium compound, and the image producing apparatus has an exposure corrective control means for correctively controlling exposure output according to a temperature profile of photothermographic material within the apparatus. This method can provide an image with a stable quality while not being affected by environmental conditions during the image production.

The invention discloses a coordination control method for a mechanical arm and an operation platform in the final stage of grabbing. The coordination control method comprises the steps that before the final stage of grabbing, effective data of the last frame of the portion which can be grabbed of an object are obtained through a hand-eye camera at the tail end of the mechanical arm by means of measurement, and under the condition of a posture configuration A of the current operation platform, an expected grabbing posture of the tail end of the mechanical arm under a base coordinate system of the mechanical arm is determined; during the final stage of grabbing, according to operation platform posture information measured by a top on the current operation platform, the variation amount, relative to the configuration A, of a posture configuration B of a new operation platform is calculated, and an expected posture of the tail end of the mechanical arm under the condition of the posture configuration B of the new operation platform is worked out by combining the measurement data of the last frame; and finally the corrective control amount of all joints of the mechanical arm is obtained through the computation of inverse-kinematics, and the mechanical arm is driven to grab the expected object. By means of the coordination control method for the mechanical arm and the operation platform in the final stage of grabbing, it is guaranteed that the pointing posture and position of the platform remain the same in the movement process of the mechanical arm.

The invention discloses a direct energy balance coordinated control system used for a large circulating fluid bed unit, comprising a boiler master controller, a fuel master controller and a steam turbine master controller, wherein the boiler master controller adopts steam drum heat signals with second-order differentials and dynamic and static feed-forward signals; the dynamic and static feed-forward signals comprise static feed-forward signals LSff of unit load instructions to boiler fuel, dynamic feed-forward signals LDff of the unit load instructions to boiler fuel, dynamic feed-forward signals PDff of unit pressure to boiler fuel, dynamic feed-forward VtDf of a bed temperature change rate to boiler master control and dynamic and static feed-forward of load instructions to primary air quantity; the boiler master controller adopts PID variable parameter control according to different load segments; and the fuel master controller adopts a coal quality corrective control loop. The system has the advantages of improving the coordinated control ability of the circulating fluid bed unit, and solving the problems of great fluctuation of main steam pressure and low speed of load response of the unit under a coordinated control mode.

A device is disclosed for training pilots by simulating the operation of gauges in aircraft. The self-contained device can be installed into training aircraft to be used during instruction. Alternatively, the device can be used during classroom and ground school training. A switch box control panel simulates the controls and indicators of aircraft. A logic circuit and program simulate normal operations and common malfunctions of aircraft. During malfunctions the program and circuit will evaluate the pilot's corrective control input, continuing the malfunction if the pilot's response is incorrect. The device's ability to accept inputs and to emulate characteristics of specific aircraft increases the realism of the simulation and training.

In a vehicle body vibration damping control device, a priority level setting section is configured to set priority levels of a pitching vibration of a vehicle body which is a sprung mass and a bouncing vibration thereof to take a higher priority for a suppression of the pitching vibration between the pitching vibration and the bouncing vibration and a damping purpose braking-or-driving force correction quantity calculation section configured to determine a damping purpose braking-or-driving force correction quantity to suppress vehicle body vibrations on a basis of the pitching vibration and the bouncing vibration, while satisfying the priority levels set by the priority level setting section, to contribute onto a corrective control of a road wheel braking-or-driving force.

A closed loop power output calibration system for variable power output wireless devices. The wireless device includes a wireless transceiver having a transmit core coupled to a discrete power amplifier. Power detection circuitry formed in the wireless transceiver provides a detected power level of the power amplifier, and a reference power level, both of which are converted to digital signals using existing I and Q signal analog to digital converters in the receiver core. The digital signals are processed to cancel power distortion and temperature effects to provide a resulting power feedback signal. Corrective control signals are generated in response to the power feedback signal relative to a desired power output level. The gain in the transmit core is then adjusted in response to the corrective control signals such that the power amplifier outputs the target output power level.

The invention relates to a voice navigation input device, a voice navigation input method and a voice navigation system based on Bluetooth communication. The voice navigation input device comprises a Bluetooth control unit, a voice analyzing unit, a display control unit and a corrective control unit, wherein the Bluetooth control unit is used for controlling a Bluetooth module of a mobile terminal to be opened, and establishing a Bluetooth wireless communication channel between the Bluetooth module of the mobile terminal and a car Bluetooth module; the voice analyzing unit is used for receiving position voice information by using a voice module, and outputting the position voice information to a service background through a mobile phone wireless network for voice analysis to obtain target position text information; the display control unit is used for receiving the target position text information and controlling a display module to display the target position text information in an appointed region; the corrective control unit is used for determining the situation that the display module displays reset prompt information or the Bluetooth module of the mobile terminal outputs the target position text information to the car Bluetooth module according to external input corrective information, and further completes path planning and navigation functions through a car. The voice navigation system provided by the invention has the advantages of convenience and simplicity in operation, stability and reliability, simplicity in implementation, wide applicable range, and the like.

The invention discloses graphene nanomaterial-containing tree trunk injection liquid for preventing and treating citrus psylla. The graphene nanomaterial-containing tree trunk injection liquid is prepared from the following raw materials in percentage by mass: 0.2 to 20.0 percent of an active component and 0.1 to 30 percent of a graphene nanomaterial, wherein a weight ratio of the active componentto the graphene nanomaterial is (100:10) to (100:500); the pesticide active component comprises a nicotine insecticide. The graphene nanomaterial-containing tree trunk injection liquid prepared by the invention is used for injecting medicine into tree trunks, the active component has very good vertical conductivity on a citrus wood layer after the graphene nanomaterial-containing tree trunk injection liquid is injected to the citrus wood layer, and the active component can also be easily conducted to a citrus phloem part in aspect of horizontal conduction so as to be conducted to tender tipsand roots, so that the effect of preventing and treating the citrus psylla can be achieved; the graphene nanomaterial-containing tree trunk injection liquid prepared by the invention is used for preventing and treating the citrus psylla, and the corrective control effect can be up to 93.4 percent after 40 days, so that the purpose of preventing and treating citrus huanglongbing can be achieved.

The invention provides a fluorescent lamp illumining device, which can control the correction of the illuminating value at early stage, which is both applicable for illumination control systems which can comprehensively control the entire illuminated space and a single light fixture. The fluorescent lamp illumining device (FOC) comprises: a high frequency illumining circuit (HFO) to illumine a fluorescent lamp in a high frequency way; a light adjustment control circuit (DCC) which controls the high frequency illumining circuit (HFO) so that a discharge lamp (FL) is illumined in a light adjustment way; an illuminating value corrective control unit which controls the light adjustment control circuit (DCC) so as to inhibit the illuminating value of the fluorescent lamp at the early stage, and maintains the illuminating value of the fluorescent lamp (FL) approximately constant without being restricted to the illuminating value of the early stage of illumination course; and a switch module, which selects either the illuminating value corrective control circuit or an external light adjustment signal controls the light adjustment control circuits, and switches the fluorescent lamp to either the illuminating value corrective control illumining mode or the external control light adjustment illumining mode.

The present invention provides a construction machine, which improves the operability of a remote controller by using a simple and chip structure regardless of the attitude of the body of the construction machine. A controller (70) performs corrective control on the output of a hydraulic pump (1) corresponding to the attitude of a machine body (12) according to an operation signal of a remote controller (5) and the output of a gyro sensor (8). Therefore, since the corrective control of the output of the hydraulic pump (1) is carried out according to the attitude of the machine body (12), operability equivalent as on a normal horizontal plane can be ensured with a simple and chip structure even in the cases that the machine has various attitudes, such as on a inclined plane, so that the operability of the remote controller (5) is improved.

The present invention provides a construction machine, which can inhibit the falling down of the machine body and can reduce the fatigue of an operator by using a simple and chip structure. A controller performs corrective control corresponding to the attitude of a machine body (12) according to the output of a gyro sensor (8) to reduce the output of a hydraulic pump (1), so that the machine body (12) is not prone to fall down. Therefore, the action of a hydraulic cylinder (41) that drives a boom (25) becomes slower than usual, and the operation of the operator is facilitated, so that the falling down of the machine body is inhibited, and the fatigue of the operator is reduced.

A system for generating a duty cycle control signal for controlling an inverter power train providing an output current waveform to a grid operating with a grid voltage waveform compares a reference current waveform shaped to the grid voltage waveform with the output current waveform to generate an error signal. The error signal is used to generate a corrective control action signal, which is combined with a feed-forward signal representing a nominal duty cycle generated with a feed-forward function. The combination of the feed-forward signal and the corrective control action signal provide the duty cycle control signal.

An apparatus for correcting option misjudgment of a control unit includes a location information searcher for generating location information of a vehicle. The control unit changes and applies an option value of the vehicle in response to an abnormal mode when a current location of the location information is in the abnormal mode.

The invention relates to a swing gate synchronous control method. The method comprises the following steps: initializing a driving module; determining a blocking position and an opening position of ablocking body; identifying and detecting the position of a pedestrian or a vehicle and outputting a synchronous control instruction; controlling the blocking body according to the synchronous controlinstruction; acquiring the change state of the synchronous control instruction and the working state of the blocking body, and performing correction control according to the change state of the synchronous control instruction and the working state of the blocking body; and obtaining and correcting the current position information of the blocking body. The method has the effect of being accurate inblocking.

The invention relates to an optimal control method for real-time safety correction of gateway electric power of a multi-energy system and belongs to the technical field of integrated energy system operation and control. The method has the advantages that by utilizing the characteristics of multi-energy coupling and complementing, the purpose of reducing the gateway electric power of the multi-energy system is achieved through the cooperative control of various energy devices such as electrical energy devices, thermal energy devices, cold energy devices and the like and the optimal real-time safety corrective control is realized by using linear optimization; an optimal control model for the real-time safety correction is provided, the linearization of the optimal model is realized by specifying the adjustment direction of each device and the rapid solving and the engineering application are benefited; and the method can be applied to the real-time online operation control of the multi-energy system and when the situation that the gateway electric power exceeds the upper limit is monitored, the adjustment amount of each device is calculated through the method, the gateway electric power is reduced and the safe operation of the multi-energy system is guaranteed.

The invention discloses a navigation corrective control system, belonging to the technical field of automatic navigation control. The navigation corrective control system is characterized by comprising a control module (1), a GPS (global positioning system) receiving module (2), a route planning module (3), a node judgment module (4), a distance judgment module (5), a timing module (6) and a control module (7). Compared with the prior art, the navigation corrective control system has the advantages of simple structure, convenience in control, high reliability, convenience in maintenance, and the like.

The invention discloses a coordination control method for a mechanical arm and an operation platform in the final stage of grabbing. The coordination control method comprises the steps that before the final stage of grabbing, effective data of the last frame of the portion which can be grabbed of an object are obtained through a hand-eye camera at the tail end of the mechanical arm by means of measurement, and under the condition of a posture configuration A of the current operation platform, an expected grabbing posture of the tail end of the mechanical arm under a base coordinate system of the mechanical arm is determined; during the final stage of grabbing, according to operation platform posture information measured by a top on the current operation platform, the variation amount, relative to the configuration A, of a posture configuration B of a new operation platform is calculated, and an expected posture of the tail end of the mechanical arm under the condition of the posture configuration B of the new operation platform is worked out by combining the measurement data of the last frame; and finally the corrective control amount of all joints of the mechanical arm is obtained through the computation of inverse-kinematics, and the mechanical arm is driven to grab the expected object. By means of the coordination control method for the mechanical arm and the operation platform in the final stage of grabbing, it is guaranteed that the pointing posture and position of the platform remain the same in the movement process of the mechanical arm.

The invention discloses a double hinged deviation control system for a pipe jacking machine, comprising: a front hinged oil cylinder group, including a plurality of front hinged oil cylinders connecting two mutually nested middle casings of the pipe jacking machine and the rear casing of the pipe jacking machine; The rear articulated oil cylinder group includes a plurality of rear articulated oil cylinders connecting two sections of the inter-intermediate front housing and the inter-intermediate rear housing which are nested in each other; for providing the front articulated oil cylinder and / or the rear articulated oil cylinder Hydraulic control system for hydraulic control and power. The double-hinge deviation control device of the pipe jacking machine of the present invention can realize the high-precision correction control of the axis deviation of the super-large-section rectangular pipe jacking machine through hydraulic and electrical control, and is equipped with multiple combined sealing systems at the hinge position, which can effectively reduce surface settlement and shielding. It has the characteristics of simple operation, safety and reliability, and fast response to deviation correction.

The invention relates to a power system unit combination method based on random robust optimization, and belongs to the technical field of power system operation control. The method comprises the following steps: firstly, building a power system unit combination model composed of a target function and a constraint condition; converting the constraint condition, and converting an original model into a nonlinear optimization problem; and solving the converted model to obtain a generator starting plan, and conducting a corresponding starting plan decision according to a solving result to achieveunit combination. According to the method, the fluctuation of renewable energy in a power system is considered, the cost of corrective control is reduced, and the safety of the power system is guaranteed; and the method is suitable to be applied to scenes of day-ahead unit combination and the like of the power system.