31results about How to "Realize digital processing" patented technology

The invention discloses a digital coal dust flame length measuring system during instantaneous explosion comprising a high temperature heating ignition sub system for igniting the cost dust, a dust sending sub system for sending coal dust to the high temperature heating ignition sub system, a sub system for photographing flame image during instantaneous explosion and collecting data and a main control unit; the dust sending sub system and the high temperature heating ignition sub system are connected electrically with the main control unit and controlled by the same. The sub system for photographing flame image during instantaneous explosion and collecting data is connected electrically with the main control unit and outputs collected image data to the main control unit to be processed. Furthermore, the invention discloses a digital coal dust flame length measuring method that uses computer image processing analysis technique to analyze flame generated by explosion. Compared with prior judging technique, accuracy and scientificity are improved greatly and judging result is object and fair.

The invention discloses a micro-nano satellite measurement and control digit midfrequency and baseband processing method and an apparatus thereof. The method comprises the following steps: carrying out analog-to-digital conversion, down conversion processing, phase demodulation processing to a first phase modulation (PM) intermediate frequency signal and generating a demodulation signal; extracting a binary phase shift keying (BPSK) signal from the demodulation signal, carrying out BPSK demodulation processing and generating a remote-control base-band binary code stream; carrying out BPSK demodulation processing to a received telemetry signal, generating a first modulation signal, superposing the first modulation signal and a sound ranging signal extracted from the demodulation signal, and then carrying out phase modulation processing so as to form a second modulation signal; carrying out up-conversion processing and the analog-to-digital conversion processing to the second modulation signal, generating a second PM intermediate frequency signal and sending. By using the micro-nano satellite measurement and control digit midfrequency and baseband processing method and the apparatus thereof, digital processing to the PM signal with a simulation form can be realized. A volume, weight and power consumption of the midfrequency and baseband processing apparatus can be reduced.

The invention provides a remote clothes-customization device, comprising a human signs acquisition module, a model generation module, a display module and storage, wherein the human signs acquisition module is connected with the model generation module and the model generation module comprises a human model module and a mixed model module. The human model module receives the information of the human signs acquisition module to generate a human model and sends the human model to the display module and the mixed model module reads the clothe model stored in the storage and loads the clothes model on the human model and display the clothes model on the display module. The human signs digitized data can be repeatedly used, and the human cost is reduced by using the developed network technique and the high-quality remote clothes-customization system can be realized and the consumer is provided with the real price and more satisfied clothes.

The invention is suitable for the commodity anti-counterfeiting verification field, and provides a commodity anti-counterfeiting verification method, a commodity anti-counterfeiting verification system, and a bar code scanning device. The commodity anti-counterfeiting method comprises steps that according to a space geometric relation among various characteristic points in surface characteristic information, the surface characteristic information is reconstructed into a plurality of two-dimensional or three-dimensional anti-counterfeiting images in a digital domain, and an anti-counterfeiting digital image set comprising a plurality of anti-counterfeiting digital images is generated; a commodity bar code database is established, and bar code information and the anti-counterfeiting digital image set are stored; in the commodity bar code database, an association relation between the bar code information of each commodity and the anti-counterfeiting digital image set is established. By adopting the contact-type scanning of the bar codes of the commodities, the anti-counterfeiting digital images corresponding to the bar codes of the commodities are acquired, and the anti-counterfeiting function of the commodities is realized by using the digital images of the bar codes of the commodities.

The invention discloses a DC regulation power supply based on a three-phase pulse rectifier and a control method thereof. The DC regulation power supply comprises a main circuit, a testing circuit and a control circuit; and the control circuit comprises a TMS320LF2407 DSP, a crystal oscillating circuit, a power supply circuit, an AD sampling circuit and a PWM output isolating circuit. The control method of the DC regulated power supply has various forms including sampling, DC voltage control, AC current control and switching logic control. The DSP is added to the DC regulated power supply and the control method thereof, so that the DC regulated power supply is able achieve the digitalized processing. The input three-phase 380V alternative voltage is processed through controllable direct-current, so that stable 600V direct current voltage is obtained. By adopting a predictive current control method, the shape of incoming current is approximate to that of a sine wave, and the incoming current is same as the input network voltage in phase position, thereby leading the AC input power factor to be approximate to 1, and greatly reducing the pollution on an electric network.

The invention provides a measurement device for automatically acquiring customized size of man's wear. The measurement device is characterized by comprising a measured clothing measuring module, a sensor information acquisition module, a wireless transmission module, a data display module and a storage processing module. According to another technical scheme, the invention provides a measurement method for automatically acquiring the customized size of man's wear. According to the measurement method and the measurement device provided by the invention, appearance shape, which is designed in accordance with customer satisfaction, is measured and is converted into a digital signal, and the digital signal can be repeatedly used infinitely by virtue of a computer system, so that digital processing of cutting clothing according to figures is implemented; and customized clothing size information can be conveniently imported into an MTM customizing system by virtue of such network techniquesas internet and the like.

A high-frequency and high-voltage pulse generator for sterilization relates to a pulse generator. A control circuit and a pulse generating circuit are provided; the control circuit is provided with a voltage comparator, a triode, a first NAND gate, a second NAND gate, a coupler, and a relay; the pulse generating circuit is provided with a relay normally open switch, MOSFET switching tube, first transformer, second transformer, diode, capacitor, spark arrestor. Based on the traditional high-frequency pulse device, a timer based on NE555 is designed, and DSP is used to digitally process the sterilization signal, so that the interference of the sterilization circuit is greatly reduced. Capacitor charging and discharging is used to obtain high-voltage pulses, so that the output pulse can reach 12-100kV/cm, and the width is controlled at the microsecond level, and the pulse front is controlled at the nanosecond level, which can effectively sterilize and will not change the food composition. ; It can be turned on and off in an instant and has a large flow capacity and reliable operation.

The invention provides an underground magnetic field detection while drilling device. The device outputs PWM signals to a fluxgate drive circuit through a DSP and controls an FPGA to synchronously sample waveform data, the fluxgate drive circuit excites a fluxgate sensor to sense X-axis, Y-axis and Z-axis magnetic fluxes and converts the magnetic fluxes into voltage signals, a voltage signal sequentially passes through a band-pass filter, a gain circuit and a first analog-to-digital converter and is converted into sampling waveform data to be stored in the FPGA, the DSP reads the sampling waveform data in the FPGA, digital band-pass filtering is carried out on the sampling waveform data, digital phase-sensitive detection is carried out on a filtering signal obtained through digital band-pass filtering, the sampling waveform data are stored in the FPGA, digital integration is carried out on waveform data obtained after digital phase-sensitive detection, digital low-pass filtering and amplitude extraction are carried out on the waveform data obtained after digital integration to obtain the magnetic field intensity, the magnetic field intensity is sent to a central control communication circuit, and detection while drilling of the magnetic field intensity in an underground complex environment is achieved.

The invention discloses a phase noise data stream processing device and method based on an FPGA. The device comprises a data processing module, a clock management module, a control module, a data stream control module and an FFT module. The data processing module comprises a multi-stage extraction filtering unit for extracting and filtering an input phase noise signal to generate multi-stage phasenoise data streams with different sampling rates; the clock management module is used for generating clock signals required by each stage of extraction filtering unit; the control module is used forgenerating a reset signal for controlling each stage of extraction filtering unit; the data flow control module is used for adjusting the data length and the clock frequency of each stage of phase noise data flow input into the FFT module; and the FFT module is used for calculating frequency domain information of each stage of phase noise data stream. According to the invention, the design of extraction filtering and data processing is realized in the FPGA, the processing speed of the phase noise data is improved, the delay in the data transmission process and the possibility of transmission errors are reduced, and the system complexity is reduced at the same time.

The invention discloses a remote sensing image object level change detection method. The method specifically comprises the steps of image preliminary processing, mean filtering obtaining calculation and image analysis based on a convolutional neural network. The invention provides a self-adaptive k value calculation method, and provides a remote sensing image object level change detection method.The preliminary graph is acquired on the basis of the deep full convolutional neural network model as a whole, and the image is finally subjected to binarization processing on the basis of a corresponding algorithm, so that digital processing of the image is realized, later change detection can be conveniently carried out on the image on the basis of the digital processing of the image, and the detection precision and accuracy are improved.

The invention discloses a marine active phased array radar, and belongs to the field of radar system design. The marine active phased array radar mainly comprises a radar host and a servo turntable, wherein the radar host mainly comprises an active phased array antenna, a radio frequency processing unit, a digital intermediate frequency unit, a digital processing unit and a power supply unit. The active phased array radar provided by the invention can effectively discover and track far and near distance targets on the sea surface.

The invention provides a 400KHz channel machine based on software digital processing. The 400KHz channel machine is connected with a main control unit through a secondary development interface for operating the 400KHz channel machine; the main control unit is connected with an FPGA radio frequency modulation and demodulation unit through an UART interface, the FPGA radio frequency modulation and demodulation unit is connected with a radio frequency signal receiving and sending unit, the radio frequency signal receiving and sending unit is connected with a transmitting power control detection unit and an antenna interface, and the transmitting power control detection unit is connected with a main control unit through an IIC interface; and the main control unit is connected with a temperature detection unit through a UART interface, and the transmitting power control detection unit monitors the temperature in the 400KHz channel machine. The 400KHz channel machine is based on the radio frequency signal software modulation and demodulation technology, adopts a high-speed FPGA chip and a digital oscillator, and realizes the digital processing of radio frequency signals of the channel machine, and a decoding function of sub audio signals and MSK signals.

The embodiment of the invention discloses a service information processing method and device, and the method comprises the steps: receiving a service request, and enabling services to comprise services needed in a check-in or check-out process in a target service place or a check-in process in a guest room; creating a task work order of a corresponding type according to the service type information and the service address information corresponding to the service request; and allocating a task executor to the task work order, and sending the information of the task work order to terminal equipment associated with the task executor. According to the embodiment of the invention, more efficient and convenient services can be provided for customers who check in or check out in a hotel.

The invention provides an interview check-in device and an interview system, and the device comprises a polling module which is used for obtaining the information of a to-be-checked interviewer from a service control center at preset time intervals; an identity verification module which is used for collecting identity information of the interviewer and comparing the identity information of the interviewer with the information of the interviewer so as to determine whether the interviewer has an interview permission or not; a living body verification module which is used for carrying out living body authentication on the interviewer when the interviewer is determined to have the interview permission; and a prompting module which is used for outputting preset prompting information to prompt the interviewer to prepare for interview when the interviewer passes the living body verification. According to the invention, the digital processing of the interview examination waiting process can be realized, the working efficiency of interview examination waiting is improved, and the manual workload is reduced.

The invention relates to a half-fixed and combined rock strain measuring device, which consists of measuring mark rings, a measuring mark ring space supporting tube, independent stain test units with non-wired data communication transceivers and a stain reading buffering controller, wherein the independent stain test units are combined and placed between adjacent measuring mark rings in a rock hole in turn respectively; the spherical contacts at the two ends of the shell each independent stain test unit are contacted and fixed with the upper and lower conical contact seat faces of adjacent measuring mark rings; and the end parts of the contacts at the two ends of the shell each independent stain test unit are provided with non-wired data communication transceivers respectively and face the non-wired data communication transceivers of adjacent independent stain test units end to end, the values of the strains sensed by the independent stain test units between the measuring mark rings are subjected to intra-unit electronic signal regulation and processing by a digital signal collection board first and then transmitted to the strain reading buffering controller outside the rock hole one by one from the inside to the outside by the non-wired data communication transceivers facing one another end to end under the control of software, and the strain reading buffering controller is connected with a computer in a wireless communication mode so as to transmit the strain values.

The invention belongs to the field of home furnishing materials, and provides a surface pattern splicing method and system for natural wood floors or stone. The method comprises the steps that contactscanning is carried out on the natural wood floors or stone so as to obtain the feature information of the natural wood floors or stone; the feature information is reduced into digital images with the ratio being 1:1; the digital images of all the natural wood floors or stone are obtained, and a digital image database is set up; all the digital images in the digital image database are subjected to image matching so as to obtain all digital image combinations with the matching degree larger than a preset threshold value; all the digital image combinations are automatically spliced, and splicedimages are generated and displayed so as to be screened manually; and according to the manually-screened digital image combinations, corresponding natural wood floor or stone combinations are soughtfor manual reference and splicing. According to the surface pattern splicing method and system, surface patterns of the natural wood floors or stone are scanned, digital treatment and automatic matching splicing are carried out, and the pattern splicing efficiency of the natural wood floors or stone can be effectively improved.