16results about How to "Take up less resources" patented technology

The invention relates to the technical field of voice recognition, in particular to a mixed recognition processing method and device, equipment and a medium, and the method comprises the steps: recognizing command word data based on a command word recognition model, selecting command word data with an error rate lower than a preset range, generating a corresponding phoneme embedding representation, and forming a phoneme embedding dictionary; determining a mixed recognition command word corresponding to the current command word, and generating a mixed recognition list; identifying an audio embedding sequence corresponding to the current command word; obtaining a phoneme embedding sequence of each mixed recognition command word in the mixed recognition list based on a phoneme embedding dictionary; and calculating the similarity between an audio embedding sequence and each phoneme embedding sequence to obtain an identification result. The method and the device can improve recognition accuracy and reduce mixed recognition of command words.

The invention discloses a device and method for detecting phase information of an electric energy meter based on dual-mode acquisition communication equipment, and the device comprises a central coordinator which is used for network configuration and networking, guarantees the mutual communication between equipment, and transmits the phase information of the acquisition communication equipment; the acquisition communication equipment acquires power grid phase information from the central coordinator after network access is successful, and broadcasts the phase information and zero-crossing information of the acquisition communication equipment through an RS-485 communication protocol; and the plurality of electric energy meters are used for receiving and collecting the phase information and the zero-crossing information of the communication equipment, and calculating the phase information of the electric energy meters by detecting zero-crossing signals of the electric energy meters and combining the phases of the communication equipment. According to the invention, mode expansion can be carried out on the basis of the existing RS-485 communication interface, the collected zero-crossing information of the communication equipment is stably synchronized to the electric energy meter, the electric energy meter calculates the phase information by combining the zero-crossing information of the electric energy meter, and the technical scheme of the invention is simple and reliable and occupies few resources.

The embodiment of the invention provides a low-complexity signal adaptive detection method and system based on an FPGA, and the method comprises the steps: obtaining a signal envelope which comprises a plurality of data samples; performing amplitude multi-point smoothing processing on the signal envelope to obtain a to-be-judged signal comprising a plurality of judgment samples; obtaining an adaptive threshold value based on the data sample; sequentially comparing the judgment samples with the self-adaptive threshold value; when M continuous judgment samples in the to-be-judged signal are greater than the adaptive threshold values corresponding to the judgment samples, outputting a high-level detection mark; and when N continuous judgment samples in the to-be-judged signal are smaller than the adaptive threshold values corresponding to the judgment samples, outputting a low-level detection mark. Amplitude multi-point smoothing processing is firstly carried out on a signal envelope, then rising edge pulse judgment and falling edge pulse judgment are respectively carried out by adopting multi-data-point accumulation (M-N method), and a relatively high correct judgment probability can also be achieved when the signal-to-noise ratio is relatively low.

The utility model discloses a detection circuit for a circuit signal reference ground potential difference, which relates to a detection circuit and comprises a resistor R1, a resistor R2, a voltage comparator UA and a voltage follower UB. One end of the resistor R2 is a free end, the other end of the resistor R2 is respectively connected with one end of the resistor R1 and a normal phase input end of the voltage comparator UA, the other end of the resistor R1 is connected with an output end of the voltage comparator UA, and the voltage follower UB is connected with the voltage comparator UA. The inverted input end of the voltage comparator UA is connected with the output end of the voltage follower UB and the inverted input end of the voltage follower UB, and the normal input end of the voltage follower UB is connected with the zero potential point PE. According to the utility model, the occupied resources are few, the realization is simpler and the cost is low; a hysteresis comparator is adopted to prevent false triggering, and the response speed of an operational amplifier is faster than that of a conventional optocoupler isolation scheme; and a voltage follower is adopted to prevent PE from introducing interference.

The application discloses a method for instruction branch prefetching in an AIGPU processor, which comprises the following steps: 1) defining a branch prefetching instruction in a GPU instruction set, the branch prefetching instruction is used to check whether the instruction at label exists in the cache, if the instruction at label does not exist in the cache, one or more instruction data at label are fetched from the lower storage to the cache; 2) according to the PC absolute value or relative value coded by the branch prefetching instruction, the data at the program branch instruction address is prefetched. The application provides a mechanism for branch prefetching through an instruction, which can reduce the performance loss during branch jumping and improve the system performance. The application does not use a complex branch prediction circuit, and the prediction delay and prediction error are avoided.

The present application relates to the field of computer technology and provides a method, computer device and medium for virtual function permission management. The method includes: through physical function driving, configuring physical functions and configuring multiple virtual functions that are associated with physical functions, and managing the operation permission configuration of each virtual function, including the first and second virtual functions; through the first virtual machine, at least before the loading of the first virtual function is completed, judging whether the first operation associated with the first virtual function is authorized by the first operation permission configuration, and returning a loading error when it is not authorized; through the first container, at least before the loading of the second virtual function is completed, judging whether the second operation associated with the second virtual function is authorized by the second operation permission configuration, and returning a loading error when it is not authorized. In this way, differentiated permission management and selected message filtering are provided for virtual functions.

The application relates to a method for constructing a data synchronization engine and data query synchronization, a method for constructing a data synchronization engine, which comprises the following steps: step one: configuring three annotations, the annotations comprising: @EnableIaaSDataEngine, @DataInterceptor and @DataBoxHandler; step two: configuring an intercepting processing class interface, which comprises: defining an intercepting processing class interface DataBox, defining processing logic after successful interception, and defining AbstractDataBox; step three: defining an interceptor, parameter management and registering the interceptor; and a method for data query synchronization, which comprises: using the data synchronization engine to query synchronization data. The application solves the problems of data inconsistency and disordered and inharmonious front-end interface display logic caused by switching different underlying IaaS resources under the same management interface.

The invention relates to the field of low-orbit satellite navigation enhancement and conduction fusion positioning application, and provides a low-orbit satellite positioning time service signal receiving and processing method based on double sliding windows. According to the method, segmentation and burst modulation characteristics of signals are fully analyzed, and sequential processing of the segmented signals is realized by using a data caching method; real-time detection and identification of burst signals are realized by using double sliding FFT windows; partially matched filtering and frequency domain searching are used to realize accurate synchronization and measurement of pilot frequency ranging signals. Rapid demodulation of a message data frame is realized by using closed-loop tracking and dynamic assistance; and after data such as Doppler observed quantity, pseudo-range observed quantity and telegraph text data frames are obtained, receiving processing of the low-orbit satellite positioning time service signals is finally completed. According to the method, the difficulty of burst and real-time receiving and processing of the low-orbit satellite positioning time service signal is solved, meanwhile, the scale and operand of a correlator for signal processing are reduced, the occupied resources are few, and the operation efficiency is high.

The present invention discloses a multi-component gas concentration detection method based on a spectral analysis algorithm, the steps are as follows: A. changing the wavelength of the incident light and recording the ring-down time τ of the mixed gas t And draw the ring-down curve; B. Normalize the ring-down curve; C. Use the ring-down time τ of the mixed gas t Calculate the normalized ring-down intensity I t ; D. Solve #imgabs0# and plot the mixed spectrum with wave number v as the horizontal coordinate and #imgabs1# as the vertical coordinate; E. Use the spectrum analysis algorithm to perform peak separation on the mixed spectrum to obtain multiple Lorentz distribution function absorption peaks; F. Perform peak area integral calculation on each Lorentz distribution function absorption peak to obtain the peak integral area; G. Substitute the peak integral area and line intensity, as well as the total gas pressure and effective optical path into the gas concentration calculation formula to calculate and obtain the gas concentration of each component in the mixed gas. The present invention uses the spectrum analysis algorithm to perform peak separation and fitting on the mixed spectrum to solve the content of each gas component, and the detection limit is low and the accuracy is high.

The present invention discloses a mixing method and device for vehicle audio signals, the mixing method comprising the following steps: A. generating a reference signal according to the vehicle engine speed; B. generating a synthetic signal according to the reference signal, a multimedia signal after filtering and a weight coefficient of noise reduction control; C. generating an error signal according to the synthetic signal and the processed multimedia signal; D. estimating and updating the weight coefficient of noise reduction control according to the error signal; E. generating a mixed signal according to the synthetic signal and the processed multimedia signal. The noise reduction control of the present invention does not perform noise reduction processing on the multimedia signal, thereby ensuring the complete and accurate restoration and playback of the multimedia signal.

The invention relates to the field of satellite navigation and low-orbit satellite navigation enhancement service application, and provides a navigation positioning resolving method based on high, medium and low-orbit mixed constellation fusion. According to the method, the working characteristics and operation modes of low-orbit navigation satellite constellations are fully analyzed according to the requirements of low-orbit navigation satellite receiving and positioning processing engineering implementation, and the dynamic satellite selection method with the optimal geometric configuration is innovatively provided according to the bottlenecks that the low-orbit navigation constellations are large in constellation scale, high in operation speed, large in geometric configuration change and the like. According to the method, positioning participating satellites are selected by taking geometric accuracy factors as a criterion in a geometric accuracy factor pre-evaluation mode, so that the accuracy and robustness of geometric configurations of the positioning participating satellites are ensured, and original satellite parameter support is provided for high, medium and low orbit constellation fusion positioning; the method is of great significance to development of satellite navigation receivers compatible with low-orbit constellations and construction and application of more ubiquitous high, medium and low-orbit collaborative navigation systems in China.

The invention belongs to the technical field of camera imaging, and discloses a processing method for extracting a line-scan digital camera yaw mode data twill angle, in a yaw mode, because all pixels of a CCD image the same ground object, relative radiometric calibration can be carried out based on yaw data, however, the yaw data twill angle is influenced by the camera linear array speed and frame frequency, and the linear array camera yaw mode data twill angle is more accurate. The yaw twill angle of each time is not fixed, and the influence on the subsequent calculation of the calibration coefficient is very large, so that the rapid and accurate extraction of the yaw data twill angle becomes a new demand. Aiming at the problems of low timeliness, high computer resource occupation, low calculation precision and the like of an existing yaw data twill angle calculation algorithm, the invention provides a processing method for extracting a linear array camera yaw mode data twill angle, and the processing method comprises the steps of reading yaw data, constructing and calculating an optimal standard deviation operator at each angle, and calculating wave bands one by one. Therefore, the method for efficiently and accurately extracting the data sloping grain angle in the yaw mode of the camera is realized. And reliable angle parameters are provided for subsequent yaw data processing. And a solution thought is provided for subsequent projects with the same requirements.

The application discloses a kind of main control board for picosecond laser treatment system, including STM32 single-chip microcomputer and RS232 serial communication touch screen control circuit module, RS232 serial communication laser output control and state monitoring circuit module, opto-coupler isolated IO input circuit module, opto-coupler isolated IO output circuit module, analog voltage input circuit module, TFT card and USB data storage module, DAC circuit module, galvanometer control circuit module and network communication circuit module, the STM32 mainboard is driven by above-mentioned each functional circuit module to the peripheral equipment of corresponding electric control system.The application also discloses 755nm picosecond laser treatment electric control system.The application has big data function and network communication function, has AI auxiliary operation, internet of things system, teaching video function.Greatly improve the treatment effect, safety, reliability, effectiveness of product, reduce product cost, use difficulty, failure rate, maintenance rate and maintenance cost.

The present invention discloses a three-dimensional scene generation method, system, electronic device and storage medium, wherein the three-dimensional scene generation method comprises the steps of: performing lightweight processing on first configuration data to obtain second configuration data; generating a component set based on the second configuration data, wherein the component set includes at least one component; and rendering a target scene based on the component set. The present invention performs lightweight processing on the original configuration data, obtains a component set based on the result of the lightweight processing, and then renders the components in the component set to the target scene, thereby greatly reducing the resources required for three-dimensional scene generation, improving the efficiency of three-dimensional scene generation, integrating different original data into the same target scene, and greatly expanding the relevant application scope of three-dimensional scene generation.

The application provides a digital filtering system for multi-domain analysis of a vector network analyzer, and the specific process of the digital filtering system for processing signals is as follows: multiple analog intermediate frequency input signals enter an analog-digital conversion control and holding unit through a signal conditioning circuit, so as to convert the multiple analog intermediate frequency signals into multiple digital intermediate frequency signals; the multiple digital intermediate frequency signals enter a multi-channel data synchronization unit; under a non-modulation measurement domain, the signals enter a continuous filtering unit, under a synchronous modulation domain, the signals enter a synchronous modulation filtering unit, and when in a data storage mode, a spectrum mode or other special modes, the signals enter an ADC data storage unit; a filtering coefficient generation and control unit generates different FIR filtering coefficients according to input data modes, and sends the filtering coefficients into a multi-channel parallel FIR filtering unit. The technical scheme of the application overcomes the problem that the filtering system in the prior art cannot meet the digital filtering requirements of the vector network analyzer under different measurement modes.

This invention provides a multi-power integrated electrical interlocking device, relating to the field of low-voltage electrical technology. It includes: multiple signal conversion modules and an interlocking connection module. The interlocking connection module includes multiple interlocking connection units corresponding to each signal conversion module. Each interlocking connection unit includes an interlocking wiring network. Each signal conversion module includes one input terminal and multiple output terminals. The input terminal is connected to the status node of a circuit breaker in the multi-power system, and the multiple output terminals are connected to the corresponding interlocking connection unit. Each signal conversion module converts the input signal of the target circuit breaker's status node into multiple sets of dry contact signals. The interlocking wiring network is connected based on the interlocking logic of the corresponding target circuit breaker. The interlocking connection unit performs interlocking control on the corresponding target circuit breaker through the interlocking wiring network and the multiple sets of dry contact signals. This invention achieves forced interlocking between multiple power sources through hardware-level interlocking design without the need for external interlocking lines.