30results about How to "Many control parameters" patented technology

The invention discloses a short-distance or vertical take-off and landing aircraft which mainly comprises a lifting body, a lifting fan system and a propelling system, wherein the lifting fan system and the propelling system form a distribution type power system. According to the lifting fan system, force in a vertical and / or horizontal direction can be provided, and the size and / or the directionof the force can be adjusted; according to the propelling system, force in the vertical and / or horizontal direction can be also provided, and the size and / or the direction of the force can also be adjusted. When the aircraft takes off or lands down, lifting force is mainly provided by the fan system and / or the propelling system. Along with increase of the speed of the aircraft, the lifting force provided by the lifting body is increased, and the lifting force provided by the lifting fan system and the propelling system is reduced. At a horizontal flying state, the inlet and the outlet of the lifting fan can be closed, then the flying resistance can be reduced, and the lifting force can be increased. The aircraft has the advantages that requirements of the aircraft on take-off and landing fields can be lowered, the aircraft is high in horizontal flying efficiency, and the aircraft is good in controllability and reliability.

The invention provides a preparation method of ultrathin prepreg. The preparation method of the ultrathin prepreg comprises the steps of preparation of a fiber layer, preparation of a resin layer, preparation of the ultrathin prepreg and the like. According to the preparation method of the ultrathin prepreg, technological control of each step is researched, and the high-quality large-size ultrathin prepreg can be prepared; and in addition, the prepared prepreg has the advantages of being good in appearance quality, excellent in performance, low in production cost and the like. The invention further provides the ultrathin prepreg prepared through the preparation method. Composite laminate made of the ultrathin prepreg is excellent in mechanical property.

A device for operating gas in the vacuum or low-pressure environment and for observation of the operation includes a housing. The housing has a thinner part formed at a side thereof, and at least one spacer mounted therein for partitioning off its inside into a gas chamber and at least one buffer chamber outside the gas chamber. The gas chamber has two inner apertures provided on the spacers above and below the gas chamber. The housing has two outer apertures provided respectively on a top side thereof and a bottom side thereof. All of the inner and outer apertures are coaxial with one another and located on the thinner part. The housing has a pumping port for communication with the buffer chamber, and a gas inlet for communication with the gas chamber.

The invention discloses an automobile chassis domain control sensor architecture and dynamic state fusion calculation method, which comprises a chassis, wherein the chassis is provided with a suspension, a wheel speed sensor, a vertical acceleration sensor and a suspension displacement sensor, wheels arranged on the suspension, the wheel speed sensor, the vertical acceleration sensor and the suspension displacement sensor form a set of wheel assembly, and four sets of wheel assemblies are arranged on the chassis, namely, a left front wheel assembly, a left rear wheel assembly, a right front wheel assembly and a right rear wheel assembly. According to the invention, the wheel speed sensor, the vertical acceleration sensor, the suspension displacement sensor and the like are arranged for obtaining rotating speed parameters and vertical bounce acceleration parameters of the wheels, relative position change parameters of the wheels relative to chassis position change and the like. According to the invention, the running state of the wheels can be comprehensively acquired through the sensors, so that more comprehensive control parameters are provided for automatic control of the vehicle, and the calculation precision of the automobile dynamic state is greatly improved.

The invention aims to provide a self-adaptive cruise driving method and equipment, and the method comprises the steps: collecting the historical driving data of a driver for a vehicle, and building a first corresponding relation between each current vehicle speed corresponding to the driving habit of each driver and a standard vehicle following time interval based on the historical driving data of the vehicle; based on the historical driving data of the vehicle, establishing a second corresponding relation between each vehicle speed parameter and the vehicle speed change parameter, and based on the first corresponding relation and the second corresponding relation, subsequently obtaining the vehicle speed change parameter conforming to the driving habit of each driver; therefore, the subsequent control of the vehicle driving is more in line with the personalized driving demand of the driver, and the self-definition of the vehicle speed change parameter of the adaptive cruise system is realized. Meanwhile, control parameters can be automatically adjusted according to weather conditions. The control parameters of the self-adaptive cruise control system can be diversified, the driver can define the control style by himself / herself, and meanwhile the parameters can be adjusted according to weather and environment.

The invention provides a vehicle front wheel rotation tracking system, which includes a main single-axis gyro, a sub-uniaxial gyro, a GNSS receiver and a CPU processor. The main single-axis gyro is used to measure the rotational angular velocity of the vehicle body. The single-axis gyro is used to measure the angular velocity of the front wheel support position, the GNSS receiver is used to obtain the forward speed of the vehicle in real time, and the CPU processing is used to obtain the observed angular velocity and GNSS speed of the main single-axis gyro and sub-uniaxial gyro Synchronization with vehicles, as well as the operation of the vehicle front wheel rotation tracking algorithm, the invention replaces the traditional mechanical angle sensors that require mounting brackets, zero calibration and easy wear, and provides automatic driving for wheeled vehicles such as agricultural machinery and engineering vehicles. And control provides front wheel turning angle and angular velocity.

The invention proposes a key generation method based on location uniqueness information, which is improved on the basis of the hash function. When the hash function fills the input information, a chaotic sequence is introduced to initialize the MD buffer. The message is processed in groups to ensure that the information filled each time will change randomly with the change of the input positioning information, which effectively avoids the disadvantage that the hash function is vulnerable to dictionary attacks. The change space of the key is enlarged, and the security of the key generation algorithm and the randomness of the generated key are improved; the present invention does not change the structure of the MD5 algorithm too much, so the original MD5 algorithm has irreversibility and initial value sensitivity. Equal properties still exist, and the improved algorithm has no significant increase in complexity and relatively short running time.

The invention discloses an imaging spectrometer based on filtering effects and a high spatial resolution spectral imaging method. The imaging spectrometer includes a front-end device, a filter device, a collimation device, an array detection chip, a control device, and a data calculation and analysis system; The imaging spectrometer disclosed in the invention controls the filter device through the control device. The light intensity detected by the same pixel element under different control conditions is different from each other. Substituting it into the matrix equation to calculate the spectrum can output more control parameters through the control device to realize Higher spectral resolution; due to the large number of pixels on the array detection chip, each pixel can be used as a separate detector for different subunit areas of the imaging area to be measured by dividing the target area Spectral measurements are performed, so the spatial resolution of spectral imaging is high. Compared with the traditional imaging spectrometer, the imaging spectrometer disclosed in the present invention has smaller volume, lower cost and higher performance.

The invention discloses a low-grade raw diatomite purification and enrichment technology, which comprises the steps of firstly dissociating low-grade raw diatomite through a strong smashing machine, conveying to a rotary drum dryer, drying through hot air at the temperature of 800 DEG C, and sorting through a vibrating screen; combining one part of materials separated from ore fragments and supplemented hot air at the temperature of 350 DEG C to allow the mixture to enter a drying tower for drying; mixing the other part with dried materials directly discharged from the drying tower and the supplemented hot air, conveying the mixture through a pneumatic conveying pulverizer to a two-stage classifier for classification for two times, passing materials discharged from the upper part of the classifier through a 1<#> adjustable cyclone separator, and conveying the materials to a purified diatomite storage silo. According to the low-grade raw diatomite purification and enrichment technology provided by the invention, a continuous drying method is adopted for purification, the hot air at the temperature of 300 to 800 DEG C is used to continuously dry, smash and sort the materials, and by use of a pneumatic conveying method, classified enrichment is performed, so the low-grade raw diatomite is converted into economic purified diatomite containing 80 to 86 percent of diatomite components.

The present invention proposes an imaging spectrometer based on interference effects and a high spatial resolution imaging spectral imaging method; the coherent light intensity detected by the same pixel element under different control conditions of the control device is different from each other, and is substituted into the matrix equation to calculate the spectrum. Higher spectral resolution can be achieved by controlling the device to output more control parameters; due to the large number of pixels on the array detection chip, each pixel can be used to image the target by dividing the area of ​​the target to be measured Spectral measurement is performed in different subunit areas of the region, so the spatial resolution of spectral imaging is high; in the process of use, the spectral measurement range of the imaging spectrometer can be made wider. The imaging system has a simple preparation process and does not require precision optical devices such as gratings. Compared with traditional hyperspectral imaging systems, it has smaller volume, lower cost and higher performance.

The invention discloses an imaging spectrometer based on diffraction effect and a high spatial resolution spectral imaging method; the imaging spectrometer includes a front-end device, a diffraction device, a collimation device, an array detection chip, a control device, and a data calculation and analysis system; The spectrometer controls the filter device through the control device. The intensity of diffracted light detected by the same pixel element under different control conditions is different from each other, and is substituted into the matrix equation to calculate the spectrum; more control parameters can be output through the control device to achieve a higher spectrum. Resolution; due to the large number of pixels on the array detection chip, by dividing the target to be measured, each pixel can be used as a separate detector to perform spectral imaging measurements on different sub-unit areas of the imaging area to be measured , so the spatial resolution of spectral imaging is higher; compared with traditional imaging spectrometers, the imaging spectrometer disclosed in the present invention has smaller volume, lower cost and higher performance.

The invention relates to a comprehensive practical training device for process control. The device is characterized by comprising an upper computer, an instrument panel, a conventional instrument control system, a programmable control system and a simulation object system, wherein the upper computer is communicated with the programmable control system; both the programmable control system and the conventional instrument control system are arranged on the instrument panel; and the simulation object system is in switching communication with the programmable control system and the conventional instrument control system through a switch. The device can be used for practical training teaching of students, skill training of enterprise employees and scientific research. The device provides an advanced platform for training automatic control professionals, and is a training device integrating experiment, practical training and scientific research and development.

A device for operating gas in the vacuum or low-pressure environment and for observation of the operation includes a housing. The housing has a thinner part formed at a side thereof, and at least one spacer mounted therein for partitioning off its inside into a gas chamber and at least one buffer chamber outside the gas chamber. The gas chamber has two inner apertures provided on the spacers above and below the gas chamber. The housing has two outer apertures provided respectively on a top side thereof and a bottom side thereof. All of the inner and outer apertures are coaxial with one another and located on the thinner part. The housing has a pumping port for communication with the buffer chamber, and a gas inlet for communication with the gas chamber.

A direct-boost double-fed switched reluctance generator converter system, structurally composed of a battery, twelve switch tubes, three-phase windings, thirteen capacitors, twelve diodes, a transformer, and two inductors, each proposed The two branch windings of the phase winding are respectively excited by different excitation power sources and control modes, and obtain enhanced excitation effects. Under the self-excitation power generation structure, high voltage can be directly output, which adapts to the demand for high voltage in most occasions and reduces links. At the same time, this structure reserves a mode that is suitable for the continuous current of the phase winding current in the whole domain, which has strong adaptability, the battery is automatically charged and has high quality, and at the same time, it can feed back energy, so that the power generation system can work normally under extreme conditions on the load side and help the load side to ride through faults. Based on the above functions, the whole system realizes common ground and no power frequency transformer; the invention is applicable to the application field of all kinds of small and medium power high-speed switched reluctance generator systems with various power input and output sides as loads or power grids.

The invention discloses a control method for improving the imaging quality of a CMOS image sensor, and the method comprises the steps: setting expected brightness, and carrying out the statistics of a current image brightness mean value; setting a plurality of adjustable control parameters, wherein the control parameters at least comprise exposure time, charge voltage conversion gain, PGA gain, ramp voltage and digital gain; calculating whether the current image brightness mean value is matched with the expected brightness, if so, not adjusting, and if not, executing an adjusting step; and an adjusting step: adjusting the control parameters one by one, counting a current image brightness mean value after any one control parameter is adjusted, calculating whether the current image brightness mean value is matched with expected brightness, if so, ending the adjustment of the control parameters, and if not, continuing to adjust the current parameter or other parameters, until the brightness mean value of the current image is matched with the expected brightness, so that a high-quality image with moderate brightness, relatively low noise and relatively large dynamic range is obtained.

The invention provides a preparation method of ultrathin prepreg. The preparation method of the ultrathin prepreg comprises the steps of preparation of a fiber layer, preparation of a resin layer, preparation of the ultrathin prepreg and the like. According to the preparation method of the ultrathin prepreg, technological control of each step is researched, and the high-quality large-size ultrathin prepreg can be prepared; and in addition, the prepared prepreg has the advantages of being good in appearance quality, excellent in performance, low in production cost and the like. The invention further provides the ultrathin prepreg prepared through the preparation method. Composite laminate made of the ultrathin prepreg is excellent in mechanical property.

The object of the present invention is to provide a method and device for adaptive cruise driving. By collecting the driver's historical driving data of the vehicle, each current vehicle speed and speed corresponding to each driver's driving habit can be established based on the historical driving data of the vehicle. The first corresponding relationship of the standard following time, based on the historical driving data of the vehicle, establishes the second corresponding relationship between each vehicle speed parameter and the vehicle speed change parameter, and based on the first and second corresponding relationship, the follow-up can obtain the corresponding The vehicle speed change parameters of each driver's driving habits, so that the subsequent control of the vehicle driving is more in line with the driver's individual driving needs, and the self-definition of the vehicle speed change parameters of the adaptive cruise system is realized. At the same time, the present invention can automatically adjust control parameters according to weather conditions. The invention can diversify the control parameters of the self-adaptive cruise system, the driver can define the control style by himself and adjust the parameters according to the weather and environment.

The invention discloses an imaging spectrometer based on scattering effects and a high spatial resolution spectral imaging method; the imaging spectrometer includes a front device, a scattering device, a collimation device, an array detection chip, a control device, and a data calculation and analysis system; The imaging spectrometer disclosed in the invention controls the scattering device through the control device. The light intensity detected by the same pixel element under different control conditions is different from each other. Substituting it into the matrix equation to calculate the spectrum can output more control parameters through the control device to realize Higher spectral resolution; due to the large number of pixels on the array detection chip, each pixel can be used as a separate detector for different subunit areas of the imaging area to be measured by dividing the target area Spectral measurements are performed, so the spatial resolution of spectral imaging is high. Compared with the traditional imaging spectrometer, the imaging spectrometer disclosed in the present invention has smaller volume, lower cost and higher performance.