13results about How to "Compensation error" patented technology

The invention relates to the technical field of contact pin type contour measurement sensor measurement, in particular to an automatic compensation mechanism and method for a contact pin type contour measurement sensor. The automatic compensation mechanism comprises a measuring rod, a measuring needle is arranged at the front end of the measuring rod, the tail end of the measuring rod is connected with a main shaft through an adapter block, the side, away from the adapter block, of the main shaft is connected with a first rotation center, the main shaft can rotate around the first rotation center, and the first rotation center is configured to be capable of translating in the measurement advancing direction. The mechanical compensation assembly comprises a second rotation center and a connecting rod, one end of the connecting rod is hinged to the spindle, and the other end of the connecting rod is hinged to the second rotation center. The invention aims to solve the problem that the measurement precision is reduced due to measurement errors introduced when a traditional contact pin type contour measurement sensor performs wide-range measurement.

The application provides a closed-loop control integral system with amplitude compensation function, mainly comprising a non-ideal integrator, a gain-variable amplifier and a control signal generator; the non-ideal integrator receives a Rogowski coil output signal and performs integral operation on the signal to suppress integral overflow caused by interference direct current; after receiving a control signal generated by the control signal generator, the gain-variable amplifier performs amplitude gain adjustment on the output signal of the non-ideal integrator based on the control signal to compensate amplitude gain error caused by temperature drift and time drift of the non-ideal integrator; the control signal generator collects various electrical parameters of the Rogowski coil output end and combines various electrical parameters of the output signal of the gain-variable amplifier to generate a control signal for gain adjustment control of the gain-variable amplifier. By implementing the application, errors caused by device temperature drift and aging can be compensated in real time, and the application has the advantages of high measurement accuracy, low cost and more stable performance.

The application relates to the technical field of radio frequency microwave devices, in particular to a W-waveband wide-frequency RF MEMS multi-blade multi-pole switch which comprises a silicon substrate, a plurality of input / output ports and a MEMS cantilever beam switch unit, the MEMS cantilever beam switch unit is provided with a driving electrode, and the communication and disconnection of the radio frequency signal path between the corresponding input port and the output port can be controlled by applying voltage to the driving electrode. The application realizes the on-off of the radio frequency signal path by electrostatic driving control of the deformation of the cantilever beam, and the driving mode has the advantages of low power consumption, high speed and easy integration. Compared with the common single-blade structure, the application can realize more complex signal routing in a compact unit, improves the system integration and functional flexibility, realizes interference-free crossing by using the slot structure through the horizontal swing type structure and the vertical lifting type structure, significantly reduces the high-frequency parasitic effect, and ensures the transmission quality of the millimeter wave signal in the W waveband.

This utility model relates to the field of hydraulic transmission equipment technology, specifically to a composite dual-turbine hydraulic torque converter, comprising a dual-turbine hydraulic torque converter body, an input shaft disposed at the input end of the dual-turbine hydraulic torque converter body, and an output shaft disposed at the output end of the dual-turbine hydraulic torque converter body. Both the input and output shafts are fitted with sealing sleeves, which are detachably mounted on the dual-turbine hydraulic torque converter body. A rigid clamping ring is disposed inside the sealing sleeve and fitted onto the corresponding shaft. An inner sealing ring is disposed between the rigid clamping ring and the front cylindrical body of the sealing sleeve. An inner bushing is disposed on the rear side of the rigid clamping ring. Inner fitting gaskets are disposed on both the inner and outer end faces of the inner bushing. The inner fitting gasket on the inner side fits onto the corresponding shaft, and the inner fitting gasket on the outer end face abuts against the rear side of the rigid clamping ring. This utility model has good sealing performance, achieving the effect of improving sealing reliability and ensuring stable equipment operation.

The invention discloses an operation quality evaluation method, device and equipment based on Beidou positioning, and a storage medium, and relates to the technical field of Beidou navigation and Internet of Things data fusion, and the method comprises the steps: carrying out the time sequence alignment processing of Beidou positioning terminal track data, the facility state data of Internet of Things sensor nodes, and mobile terminal image data, the aligned multi-modal data is obtained; extracting a space-time distance value between each track point in the track point position sequence data of the positioning terminal and each facility coordinate in the geographical coordinate set data of the facility from the aligned multi-modal data; determining associated facility data corresponding to each trajectory point according to the space-time distance value, and constructing a space-time constraint model of the trajectory and the facility point location according to the associated facility data; quantitative evaluation is carried out on the quality of the mobile supervision object based on the space-time constraint model, a space-time correlation evaluation result is obtained, and the space-time matching precision and correlation analysis efficiency of the Beidou positioning terminal and the Internet of Things facility in a complex urban environment are improved.

The invention relates to the technical field of pressure sensor testing, in particular to an omnidirectional automatic testing device applied to a pressure sensor, which comprises a main frame. According to the omni-directional automatic testing device applied to the pressure sensor, full-automatic operation of testing of the pressure sensor is achieved, automatic feeding, clamping positioning and discharging sorting of the sensor are completed through cooperation of the longitudinally-arranged feeding pipe, the guide control frame controlled by the electric control lead screw and the classified discharging channel, manual intervention is not needed in the whole process, and the testing efficiency is improved. The test efficiency is greatly improved, meanwhile, errors caused by manual operation are avoided, and the test consistency is ensured; the all-directional pressure measuring module has the all-directional multi-dimensional pressure measuring capacity, the detachable all-directional pressure measuring module comprises multiple sets of annular detection heads, pressure testing of different angles and different areas can be carried out on the pressure sensors, the all-performance detection requirements of various pressure sensors are met, and the detection heads are detachable, convenient to replace and maintain and suitable for testing of sensors of different specifications.

This invention discloses a process-in-the-loop (CNC) device and method, belonging to the field of CNC technology. It includes a non-real-time process optimizer, which uses a deep learning-based trajectory error prediction model to optimize the process of the user-input raw trajectory data, effectively compensating for comprehensive errors generated during multi-axis machining. An interpolator and position controller are used to calculate the coordinates of the intermediate points of the motion trajectory and precisely control the tool to reach the target position. A process prediction observer utilizes neural network technology to construct a dynamic observer for real-time feedforward compensation during machining. A physical machine tool performs the machining operation. This invention employs the aforementioned process-in-the-loop CNC device and method, adding a non-real-time process optimizer and a process prediction observer. Through deep fusion prediction, optimization, and dynamic closed-loop control of the machining process using virtual machine tool simulation and physical machine tool feedback, it optimizes the machining trajectory in real time and compensates for errors.

The invention relates to the technical field of power supply or distribution circuit devices or systems and electric energy storage systems, in particular to a novel power system dispatching optimization method integrating renewable energy sources. The technical problem that prediction precision and reliability of an existing method are difficult to meet actual requirements of power grid refined scheduling is solved. The method comprises the following steps: determining a first target value among various environmental data based on first data at a first time point; the first target value is used for representing relevance among various environmental data; determining a second target value among the various environmental data based on the first target value, a fluctuation variable of the first environmental monitoring value at the second time point and a power variable of the first power generation power at the second time point; the second time point is a time point when the first generated power fluctuates; determining predicted power generation power of the target time point based on the first data, the second target value and a second environment predicted value of the target time point; the method is used for a power system dispatching optimization scene.

The utility model relates to the technical field of printing, and discloses a multilayer printing cylinder device capable of improving printing ink adhesion uniformity, which comprises a bottom plate, the top end of the bottom plate is fixedly connected with a fixing plate, the inside of the fixing plate is fixedly connected with a hydraulic cylinder, the driving end of the hydraulic cylinder is fixedly connected with a sealing box, and the sealing box is fixedly connected with the bottom plate. A first motor is fixedly connected to the interior of the sealing box, a first limiting wheel is fixedly connected to the driving end of the first motor, a belt is arranged in the first limiting wheel in a sleeved mode, a second limiting wheel is rotatably connected to the inner wall of the sealing box, and a first connecting rod is fixedly connected to the interior of the second limiting wheel. The outer side of the first connecting rod is fixedly connected with a pressure roller. According to the utility model, by adjusting the pressure roller, the pressure between the printing cylinder and the material can be accurately adjusted according to the characteristics of the specific material, and the pressure can be increased for the thicker or higher-hardness material so as to ensure that the ink is fully transferred.

The utility model discloses an anti -deformation's air cooler protection net shell support relates to protection net shell support technical field, including the fixed support of fixed on the wall, the fixed support front side bottom is equipped with the main support, and the air cooler is located the inside top of main support, the fixed support front side with the both sides of main support all are connected through anti -deformation subassembly, is used for reducing the impact force of external force impact main support, plays the buffer protection, the inside of main support is equipped with two adjusting assembly, is used for supporting the air cooler of different size size, the anti -deformation subassembly includes the hinge seat. The utility model passes through the vibration energy of first damping spring and second damping spring self -deformation absorption, significantly reduces the impact force of external force impact the utility model, realizes the buffer protection, avoids the loosening of continuous vibration, deformation or fatigue fracture, thereby guarantees the durability and safety of structure simultaneously, has optimized the stability of air cooler operation.

Embodiments of the disclosure relate to a method, a computer program product, and an apparatus for operating a vehicle. The invention relates to a method for operating a vehicle, in particular a motor vehicle, having at least one first and one second actuatable actuator, which influence the yaw behavior of the vehicle when necessary. The method comprises the following steps: determining a driving condition of the vehicle according to a dynamic indicator; dividing a yaw moment required to influence the yaw behavior into at least one first yaw moment for a first actuator and a second yaw moment for a second actuator according to the driving situation; and calculating a first setup specification for the first actuator in order to induce the first yaw moment, and calculating a second setup specification for the second actuator in order to induce the second yaw moment.

The utility model belongs to the technical field of constructional engineering, and particularly relates to a fair-faced concrete decorative plate mounting structure, a vertical rod and a transverse rod both adopt modular design, the size and the shape of the mounting structure can be easily adjusted according to actual requirements through a splicing mode of a groove and a convex block, a locking piece can be quickly clamped into a vertical hole, and the mounting structure is convenient to use. By means of the design, the installation time is greatly shortened, the installation efficiency is improved, through double fixation of the upper clamping blocks and the locking pieces, rapid installation of the decoration plate body is achieved, stability and reliability after installation are guaranteed, meanwhile, complex tools and steps are not needed in the whole installation process, and the installation cost is reduced. The installation difficulty and the labor cost are reduced, and the design that most components of the installation structure are hidden behind the decorative plate enables the surface of the decorative plate to be simple and attractive.

The invention relates to the technical field of machine vision detection, and discloses a display screen dead pixel detection method based on morphological characteristics and geometric calculation. The method comprises the steps of collecting a grayscale image of a display screen; self-adaptive image preprocessing enhancement is carried out on the image, and the process comprises self-adaptive brightness contrast global calibration, local brightness compensation and equalization and self-adaptive segmented enhancement based on bright spot density analysis; then robust geometric feature extraction and correction are carried out on the preprocessed image, and the contour, the center point coordinate and the rotation angle of the screen are obtained; and finally, based on the geometric features, performing intelligent grid reconstruction and fault-tolerant analysis, and generating a dead pixel detection result of the display screen. According to the method, false detection and missing detection caused by shooting condition differences, screen geometric deformation and background interference can be overcome, and high-precision and high-robustness automatic dead pixel detection is realized.