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

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 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 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 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.