17results about How to "Reduce the difficulty of implementation" patented technology

The application relates to an active band-pass filter Q value calibration circuit, which comprises an LDO circuit, a calibration signal filter circuit and a Q value calibration detection circuit; wherein the output ends V1 and V2 of the LDO circuit supply power to the calibration signal filter circuit, the output end VREF of the LDO circuit provides a reference voltage for the Q value calibration detection circuit, the output end signals VBP and VBN of the calibration signal filter circuit serve as inputs of the Q value calibration detection circuit, and the output signal VRZ of the Q value calibration detection circuit is outputted <n:0>The control signal is used as a calibration signal to filter circuit. The application can effectively tune the Q value of the filter and improve the consistency of the chip. Compared with the traditional active band-pass filter Q value calibration circuit, the application has the characteristics of small implementation difficulty and high integration.< / n:0>

This invention relates to the field of tunnel engineering, and particularly to a tunnel shotcrete design method, storage medium, and electronic device that considers spatiotemporal effects. The method includes: calculating the final value of vertical deformation pressure and the radius of the plastic zone of the surrounding rock without support based on tunnel foundation parameters and tunnel shotcrete design parameters; calculating the deformation pressure as a function of time using a deformation pressure calculation formula, combining tunnel excavation speed parameters, the radius of the plastic zone of the surrounding rock, and preset shotcrete hardening characteristic parameters; inputting the deformation pressure-time function into a shotcrete load-support structure model, calculating the safety factor of the shotcrete at each time node based on the shotcrete hardening characteristic parameters, and iteratively adjusting the tunnel shotcrete design parameters according to whether the safety factor meets preset requirements, until outputting tunnel shotcrete design parameters that meet the preset requirements. This invention dynamically calculates deformation pressure considering spatiotemporal effects and iteratively adjusts parameters to ensure the load-bearing safety of the shotcrete throughout its entire life cycle and reduces construction risks.

The utility model discloses an exhaust vane type silencer structure of an air-cooled heat pump unit, which is mounted above an exhaust fan component of the air-cooled heat pump unit and comprises an upper silencing insert, a lower plenum chamber and a flow deflector component arranged in the lower plenum chamber. The flow deflector assembly comprises flow deflectors, fixing ribs and fixing columns, the flow deflectors are at least used for adjusting flow field distribution in the silencer, and the fixing ribs are connected with the flow deflectors and the fixing columns. The flow deflector is used for adjusting the flow field of airflow entering the silencer insertion piece part, so that the flow field in the silencer is more uniform, the situation that airflow regeneration noise is increased due to the fact that the local wind speed is too high is avoided, and finally the actual noise reduction performance of the silencer is improved.

This invention discloses a power regulation method and system for an intelligent traction power supply system; including: calculating real-time transfer power, and calculating compensation current in real time by combining power transfer error and negative sequence current; calculating current tracking value based on current inner loop command value and voltage synchronization signal; designing a feedforward-feedback composite controller to calculate feedforward compensation amount and feedback control amount respectively; calculating the total duty cycle of PWM modulation signal based on feedback control amount and feedforward compensation amount, and driving the railway power regulator to output the actual current value; the control method and system provided by this invention have low engineering implementation cost, are suitable for traction substation RPC application scenarios, and are easy to promote.

The invention discloses a working end, a working condition distinguishing method and system thereof and engineering machinery, and relates to the technical field of engineering machinery. The method is applied to the engineering machinery which drives a mechanical arm to act through an oil cylinder so as to adjust the attitude of a working end, and comprises the following steps: acquiring stroke data of the oil cylinder of the engineering machinery and a working state image of the working end, and determining standard attitude data of the working end corresponding to the stroke data based on the stroke data; and determining actual attitude data of the operation end based on the working state image, and finally determining whether the operation end is replaced based on the relationship between the standard attitude data and the actual attitude data. Therefore, the problems of maintenance resource mismatching, low after-sales service efficiency and even secondary faults caused by the fact that potential risks are not thoroughly solved due to the fact that design and manufacturing defects, illegal modification of clients or improper operation cannot be distinguished by means of the current method when the engineering machinery breaks down are solved, and the service quality of the engineering machinery is improved. And the public praise and the market competitiveness of enterprise products are seriously influenced.

The application discloses a radar deception jamming generation method based on time domain coding metasurface phase coding, and comprises the following steps: setting the code length of an intra-pulse phase coding sequence, setting a plurality of coding modulation phase differences according to the time domain coding metasurface phase modulation capacity, and designing a time domain coding metasurface phase modulation function according to the set code length and the plurality of coding modulation phase differences; coding the plurality of coding modulation phase differences to obtain a coding set, initializing the intra-pulse phase coding sequence according to the coding set to obtain an initial intra-pulse phase coding sequence; setting a jamming position, and optimizing the initial intra-pulse phase coding sequence by using an optimization algorithm to obtain an optimal intra-pulse phase coding sequence; calculating an optimal coding modulation phase difference sequence according to the optimal intra-pulse phase coding sequence, and modulating a radar echo signal according to the time domain coding metasurface phase modulation function corresponding to the optimal coding modulation phase difference sequence to realize the deception jamming of the radar. The application can realize the deception jamming of the radar at any position.

The application discloses a safe physical human-computer interaction control method, a terminal and a medium. The method comprises the following steps: generating a desired trajectory of a rendered virtual interaction dynamic according to an interaction control equation of a robot and a human and an interaction force; shaping the generated desired trajectory according to a safety limit to obtain a safety reference trajectory; and issuing the safety reference trajectory to a robot controller for execution. The application solves the problem that traditional interaction control (admittance / impedance) cannot generally meet speed and position safety constraints. Speed limiting avoids the robot running too fast to affect interaction safety and comfort, and ensuring that the robot does not exceed the position constraint can avoid the collision between the robot and the environment, and also ensure that the human-computer interaction process does not exceed the set safety area, greatly improving the safety in physical human-computer interaction.

This invention discloses a motion planning method for a seven-DOF robotic arm system, comprising a six-DOF robotic arm and a guide rail. The method first obtains key configuration parameters, dividing the system's revolution angle around a fixed point into n regions and establishing a one-to-one mapping with n predetermined positions on the guide rail. These parameters include the boundary angles of each region, the corresponding guide rail positions, and floating thresholds set for both to suppress fluctuations in region boundary identification caused by floating-point precision. Subsequently, the current revolution angle and guide rail position are identified to determine the target revolution angle. Based on the region numbering relationship between the current and target angles and the current guide rail position, a motion path is adaptively generated. This path is achieved through asynchronous coordination of the robotic arm joint motion and the guide rail linear motion, maintaining a constant end-effector posture throughout the process. This invention avoids real-time kinematics solving through discretization and parameter mapping, improving planning stability, system adaptability, and motion efficiency.

This invention discloses a self-sensing flange gasket for structural health monitoring of pipeline systems. The flange gasket consists of functional components and signal transmission circuit components. The functional components have a three-layer concentric ring contact structure, including a sealing inner ring layer, a leakage detection middle ring layer, and a sealing reinforcement outer ring layer, used to achieve the sealing and condition monitoring functions of the flange gasket. The signal transmission circuit components include an inner ring edge electrode layer and a middle ring planar interdigitated electrode layer, used to acquire and transmit electrical signals from the flange gasket. All components use flexible PDMS as the base material to ensure the elastic deformation sealing capability of the flange gasket, while the self-adhesive properties of PDMS are used to achieve seamless assembly between the layers. This invention, through a multi-functional layer modular design, utilizes multi-dimensional electrical signal changes caused by different physical parameters to achieve simultaneous detection of fastening pressure and leakage components, thus meeting the engineering requirements for condition monitoring of pipeline systems.

The application discloses a distance real-time regulation device and method suitable for a high-speed metal particle solid deposition process, and belongs to the technical field of alloy component preparation and repair. The device comprises a metal deposition device, a fine adjustment workbench, a deposition gun, a mechanical arm and a laser range finder. The method comprises the following steps: in a deposition process, the laser range finder is used for continuously and in situ ranging the workpiece surface and collecting distance data in real time; the collected deposition distance is compared with a pre-set initial deposition distance; if the instantaneous deviation of the current deposition distance and the initial deposition distance is greater than an adjustment threshold, the fine adjustment workbench is controlled to move along the axial direction of the deposition gun, so that the actual deposition distance returns to the target range. The application adopts a macroscopic and microscopic two-level collaborative regulation architecture, can realize real-time regulation of the micron-level precision of the deposition distance without interrupting the macroscopic deposition path, and significantly improves the adjustment efficiency and the stability of the deposition process.

This invention discloses a piecewise adaptive Kalman track tracking method and apparatus based on residual classification, relating to the field of radar track tracking technology. Addressing the problems of poor adaptability to non-stationary measurement noise environments, parameter dependence on human experience, and complex FPGA implementation in existing track tracking methods, this invention proposes introducing a residual classification decision and piecewise adaptive noise adjustment mechanism into the Kalman filter recursive framework. First, a residual vector is calculated based on the predicted state and measurement data. Then, a classification decision is made using the residual vector, the predicted covariance, and the measurement noise covariance of the previous cycle, outputting the measurement quality level. Next, the measurement noise covariance is updated piecewise adaptively based on the measurement quality level. Finally, the filter gain is calculated based on the updated measurement noise covariance and the predicted covariance to complete the correction and update of the state and covariance.

The application relates to a method, device, equipment and storage medium for determining the extrusion time length of cable insulation material. The method comprises the following steps: obtaining extrusion time length reference data of insulation material obtained by mixing raw materials for preparing a cable insulation layer according to different preset time lengths; wherein the extrusion time length reference data comprises a relative dielectric constant and / or an oxidation induction period; and determining the preparation extrusion time length of the raw materials during the preparation of the cable insulation layer according to the change information of the extrusion time length reference data corresponding to the different preset time lengths. The method can quantize the scorching degree of the raw materials for preparing the high-voltage cable insulation layer in the extrusion process, and further determine the extrusion time length range of the raw materials.

The utility model provides a kind of circuit and electronic equipment for preventing data line interface overcurrent protection, it is related to electronic circuit technical field, the circuit is applied to electronic equipment, the switch component between the power supply pin and charging unit of the first data line interface connected to electronic equipment, the power supply pin and charging unit between the first data line interface are controlled to be on-off, and then in the case where the charging demand current of electronic equipment exceeds the maximum power supply current that the second data line interface of target device can provide, if electronic equipment needs to communicate and data exchange with target device, it can be avoided that the second data line interface triggers overcurrent protection mechanism by the level signal output by main control unit, and communication and data interaction between main control unit and target device can be realized. The circuit does not need to use USB Hub with independent power supply or install USB isolator, realizes lower cost, and connection relationship is simple, easy to operate, and reduces the difficulty of realization.

The application discloses a PON uplink frame reorganization method: based on service data frame authorization use and release reorganization serial number, dynamic mapping with PON uplink T-CONT, converting reorganization information table based on T-CONT binding into reorganization information table based on service data frame, and reducing reorganization information table and data cache. The application reduces reorganization information table dimension through dynamic mapping, reduces chip data cache resources; converts Combo PON parallel reorganization of wavelength division multiplexing into serial reorganization of time slot access, time division multiplexes circuits, and reduces chip area; through authorized use of reorganization information table, dynamic mapping, converting information table based on T-CONT into authorization and release based on data frame, and reducing logical circuit implementation difficulty; combining frame serial number management with DBA of the PON system, and strengthening robustness; through a more flexible reorganization strategy, different size slices of each channel input can form blocks of any size or complete service frames. The application also provides a corresponding PON uplink frame reorganization device.

This invention discloses an optical path system and method for exposing a polarizing holographic grating, including but not limited to a light source module, a polarization, beam expansion, and collimation module, an interference exposure module, and an orientation module. These modules are arranged sequentially along the center line of the optical system. The light source module emits a light beam; the polarization, beam expansion, and collimation module changes the polarization direction of the emitted beam, filters and expands the beam, and collimates the beam; the interference exposure module exposes the beam through interference; and the orientation module adjusts the substrate position. This invention reduces the volume of the traditional polarizing holographic grating exposure optical path, simplifies the traditional polarizing holographic grating exposure method, reduces the difficulty of implementing the exposure optical path engineering, and improves the integration and stability of the polarization holographic exposure optical path.

This utility model relates to the field of pharmaceutical technology and discloses a perilla leaf oil static separation device, including a separator tank, a partition plate, an inclined guide channel, a connecting pipe, an oil outlet pipe, and a water outlet pipe. The partition plate is disposed inside the separator tank to divide the separator tank into a first chamber and a second chamber. An inlet is provided on the separator tank. An inclined guide channel is disposed inside the first chamber corresponding to the inlet position. One end of the connecting pipe is connected to the first chamber, and the other end of the connecting pipe passes through the bottom of the second chamber and is disposed inside the second chamber. The end of the connecting pipe disposed inside the second chamber is connected to an outlet component, and the liquid outlet end of the outlet component is inclined. This utility model increases the relative static separation time by expanding the container, separating the chambers, and changing the separation stroke of the oil-water mixture. Furthermore, by improving the pipeline and adding a guide channel, the surface fluctuation of the oil-water mixture is reduced, enhancing the static separation effect.

The invention belongs to the technical field of analog integrated circuits, and relates to a broadband variable gain amplifier which comprises transistors M1-M4 and a resistor R, the input end VIN of the broadband variable gain amplifier is respectively connected with the grid ends of the transistors M1 and M2 and one end of the resistor R. The output end VOUT of the broadband variable gain amplifier is respectively connected with the drain ends of the transistors M1 and M2 and the other end of the resistor R. The source end of the transistor M1 is connected with the drain end of the transistor M3, the source end of the transistor M3 is grounded, the source end of the transistor M2 is connected with the drain end of the transistor M4, and the drain end of the transistor M4 is grounded. The source end of the transistor M4 is connected with a power supply; the gate end of the transistor M3 is connected with a CTRLL control signal, and the gate end of the transistor M4 is connected with a CTRLH control signal; current is changed by controlling the conduction number of the transistors M3 and M4 through a control signal so as to control the change of gain, zero poles can be offset by enabling the zero poles to be close, and therefore the bandwidth of the amplifier is large.