31results about How to "High hardware requirements" patented technology

The invention provides a rapid detection method for distinguishing the strong and weak viruses of H7N9 subtype avian influenza virus. By comparing the nucleotide sequences of the HA and NA genes of the H7N9 subtype avian influenza virus isolated in recent years, they are respectively designed in their conserved regions. Primers and probes were identified, and a real-time fluorescence quantitative RT-PCR nucleic acid rapid detection method that can distinguish between strong and weak H7N9 subtype avian influenza virus was established. The real-time fluorescent RT-PCR method for distinguishing the strong and weak viruses of the H7N9 subtype avian influenza virus provided by the present invention can detect and distinguish the strong and weak viruses of the H7 subtype avian influenza virus in the same reaction tube, and can also detect the N9 subtype bird flu virus. It has high sensitivity, short detection time, and does not require open links such as electrophoresis. It can be completed in a closed reaction tube with only one fluorescent PCR instrument, and the reaction curve can be viewed in real time during the detection process to make a quick judgment on the result.

The invention discloses an intelligent management system and an intelligent management method thereof, which include a background management network and a control center for storing data, wherein the control center is connected to the background management network by communication, and the intelligent management system also It includes an information carrying unit and an identifier for marking product information, the identifier is used to read the information of the information carrying unit, and the identifier is connected to the background management network in communication; the information carrying unit includes a device for setting in The two-dimensional code code map on the product, the radio frequency identification module and the GPS module, and their management methods. Intelligent management of products is realized, remote monitoring of products is carried out, and the cost of product management is reduced.

The invention discloses a design method for an overhead corridor structure for shock absorption and isolation in areas with high intensity and high wind pressure, and relates to the design field of overhead corridor structures for shock absorption and isolation. The structural design of the overhead corridor located in a high-intensity and high-wind pressure area must ensure the limit state of the bearing capacity and the limit state of normal use at the same time. Because the single buildings on both sides of the connection usually have different natural vibration periods, the use of seismic isolation bearings in the corridor The shock-isolation layer is formed between the monomer and the horizontal force of interaction, which can greatly reduce the horizontal force of interaction, and the deformation can be suppressed through the vibration-damping device, so as to achieve a better structural design. Based on the principle of standard design spectrum, the invention proposes a design method for seismic-isolation overhead corridors suitable for high-intensity and high-wind pressure areas in view of the situation that the lower part of the seismic-isolation layer is a building structure and the quality of the upper structure of the seismic-isolation layer is smaller than that of the lower structure . The invention obtains the excitation at the support of the corridor through the single seismic response, and obtains the horizontal seismic design spectrum used in the design of the upper structure of the seismic isolation layer of the corridor through envelope regression.

Provided is a high-speed bullet train side window model boundary displacement calculation method based on RS mapping. The method comprises the steps that an overall model of a high-speed bullet train body and a side window structure is built, a local model of a side window is built, displacement and coordinates of all nodes in the overall model under various working conditions are obtained, and displacement interpolation parameter calculation is conducted on all nodes on the boundary of the local model; displacement of all the nodes on the boundary of the local model is obtained according to the displacement interpolation parameters and displacement of a specified node, displacement of the node is loaded to the local model of the side window, the bonding strength of the side window is analyzed, and stress and deformation of a side window adhesive are obtained. The invention provides a high-speed bullet train side window bonding strength calculation method.

The invention discloses a coupling and decoupling characteristic determining method of a V-type line impedance stabilization network and belongs to the electromagnetic compatibility conducted emission testing technical field. According to the method, the coupling and decoupling characteristics of the V-type line impedance stabilization network can be calculated and analyzed; and as for a line impedance stabilization network (LISN) of which the component parameters are known, whether the coupling and decoupling characteristics of the LISN satisfy work requirements can be predicted in the aspect of trend. The method can predict and judge the coupling and decoupling characteristics of the LISN according to which a third party metering check unit does not carry out metering, and plays a role of guiding the design and development of novel LISN which can better satisfy requirements.

The invention discloses a digital phase locking amplifier and a digital phase locking control method. The digital phase locking amplifier comprises a pre-amplifier and a micro-processor. The pre-amplifier is used for amplifying a tested analogue signal, inputting the tested analogue signal into an analogue-digital converter, converting the amplified tested analogue signal into a digital signal, and inputting the digital signal into the micro-processor through a Px interface. The micro-processor is used for controlling the gain of the pre-amplifier through a Py interface according to the amplitude of the digital signal, processing the digital signal, detecting the digital signal with the pre-set frequency in the digital signal, and outputting the digital signal with the pre-set frequency through a Pz interface. The control method comprises the following steps: the micro-processor controls the analogue-digital converter to sample the tested analogue signal according to the speed which is 4M times of that of the pre-set frequency F0, represented in the equation of fs=4M*f0, so as to obtain a sampling signal; the micro-processor downwardly samples the sampling frequency fs=4M*f0 to 4*f0; two orthogonal components RS and RC of the tested analogue signal are calculated according to the sampling signal; and the amplitude A and the phase angle of the tested analogue signal can be obtained by calculation.

The invention provides a control method for a single-phase two-stage photovoltaic grid-connected system. The control method comprises the following steps: when the system operates normally, a pre-monitor monitors the output voltage and the output power of a photovoltaic array to select a proper sampling frequency for sampling to obtain a voltage value and a power value of each sampling moment and transmits the values to an MPPT (maximum power point tracking) controller for calculation; under the control of an inversion circuit, a post-monitor transmits acquired data of the output power and the power grid voltage of the photovoltaic array to an inversion controller, and a phase signal, generated by the power grid voltage data, of reference current through a phase-locked loop is also input into the inversion controller, and the data are multiplied with the phase signal to obtain a reference current signal, and actual grid-connected current and the reference current generate corresponding PWM (pulse width modulation) through a comparator, a hysteresis process and a PID (proportion-integral-differential) process to control on and off of a switch tube of the inversion circuit. According to the control method, a good control effect on the single-phase two-stage photovoltaic grid-connected system is achieved, so that the maximum output power of the photovoltaic array is guaranteed, and the unit factor control of the inversion circuit can be also guaranteed.

The invention provides a rapid detection method for simultaneously detecting and distinguishing highly pathogenic avian influenza viruses of H5 and H7N9 subtypes. The nucleotide sequence of the HA gene of the pathogenic avian influenza virus, primers and probes were designed in its conserved region, and a rapid real-time fluorescent quantitative RT-PCR nucleic acid detection method for H5 and H7N9 subtypes of highly pathogenic avian influenza viruses was established. The real-time fluorescent RT-PCR method for H5 and H7N9 subtype highly pathogenic avian influenza viruses provided by the present invention has high sensitivity, short detection time, does not need open links such as electrophoresis, and only needs a fluorescent PCR instrument to be able to perform in a closed The detection of two subtypes of avian influenza virus is completed in the reaction tube, and the reaction curve can be viewed in real time during the detection process to make a quick judgment on the result.

The invention, which belongs to the technical field of the electromagnetic-compatibility conducted emission testing, discloses a method for determining an output impedance and a voltage division coefficient of a V type line impedance stabilization network (LISN). According to the method, for an LISN with known element parameters in a description, the output impedance and voltage division coefficient of the LISN can be obtained based on calculation and analysis; and a tested piece interference voltage value that is measured practically by a receiver during a testing process can be corrected. According to the invention, the method plays an important role in correcting a conducted emission testing result and has guiding significance in improving the conducted emission testing precision.

The invention discloses a V-type line impedance stabilization network isolation determination method, and belongs to the technical field of electromagnetic compatibility conduction emission test. According to the method, isolation of a V-type line impedance stabilization network can be analyzed through calculation. As for the LISN of which the component parameters are known, whether the isolation performance of the LISN meets the working requirements can be predicted and judged by the method. The method has a reference function for measurement and verification of the isolation index of the V-type line impedance stabilization network and has directive significance for design and development and production of the novel LISN of which the performance further meets the requirements.