28 results about "Field programmable logic" patented technology

The invention relates to a tone mapping method and device, electronic equipment and a storage medium. According to the method, a first logical operation unit, a second logical operation unit, a third logical operation unit and a lookup table of a field programmable logic gate array are matched with one another. Specifically, by inputting the Y channel median value into the lookup table, the Y channel value adjustment coefficient can be directly obtained, and exponential operation between the Y channel median value and the Y channel value adjustment coefficient does not need to be carried out. By inputting the ratio of the Y channel value of each pixel stretched to the full domain to the median value of the Y channel of each pixel stretched to the full domain into the lookup table, the compression value of the Y channel can be directly obtained, and exponential operation of the ratio and the compression value of the Y channel is not needed, so that the data processing efficiency is improved, and the operation resources are saved.

The disclosure provides a point cloud monitoring method, device and equipment, relates to the technical field of image processing, specifically to the technical field of point cloud processing, and can be applied to an automatic driving scene. A specific embodiment of the method comprises the following steps: acquiring point cloud data collected by a laser radar to a field programmable logic gate array (FPGA); acquiring configuration parameters of a first monitoring item configured by an advanced reduced instruction set machine (ARM) to the FPGA; and processing the point cloud data using the configuration parameters on the FPGA to obtain a monitoring result of the first monitoring item. The embodiment is suitable for monitoring more point cloud data and can obtain a good monitoring result.

The application discloses a multiplexing measurement and control method and device of a three-axis micromechanical gyroscope, which comprises the following steps: firstly, a global clock is generated; in the working clock of any gyroscope, an alternating current driving signal, a feedback force signal, a preset reference phase signal and a reference displacement signal are outputted to the gyroscope by a coordinate rotation digital computer, and the gyroscope reaches a force balance state through a driving modal control loop and a detection modal control loop, and the angular velocity of the gyroscope is obtained; the three gyroscopes multiplex the same coordinate rotation digital computer in the respective working clock. The application combines time division multiplexing with a coordinate rotation digital computer algorithm, and can accurately and synchronously detect and close-loop control the three-axis micromechanical gyroscope in real time in limited field programmable logic gate array resources. The method and device can be widely applied to concurrent processing requirements of multi-axis or multi-path high-speed, high-precision and high-integration measurement and control instruments.

The utility model relates to a universal protocol processing board and system. The universal protocol processing board comprises a carrier board and a plurality of core boards, the core board comprises a central processing unit, and the carrier board comprises a field programmable logic gate array and a plurality of inter-board communication components; the central processing unit of each core board is connected with the field programmable logic gate array through an inter-board communication assembly; the field programmable logic gate array is at least used for forwarding a preset number of to-be-processed signals to each central processing unit through the inter-board communication component; and the central processor is at least used for performing protocol conversion on the received to-be-processed signal. Thus, the central processing unit of each core board is connected with the field programmable logic gate array through the inter-board communication assembly, the field programmable logic gate array can be used for signal forwarding, it is guaranteed that the multiple central processing units process related tasks in parallel, and then the processing efficiency of the general protocol processing board is effectively improved.

The application provides a time correction method and system for inter-crystal scattering events of a PET detector based on SiPM, and the application instantiates multiple time-to-digital converters in a field programmable logic gate array device, performs pulse width measurement on the electrical signals output by each SiPM detector, since the pulse width is positively correlated with the energy of the signal, the non-inter-crystal scattering events and the inter-crystal scattering events can be determined by the pulse width, and the position of the inter-crystal scattering events is determined to reduce the position selection error. During the correction, firstly, the non-inter-crystal scattering events are generally corrected, then further, the time difference between the inter-crystal scattering events occurring in each crystal and the non-inter-crystal scattering events on the response line is counted offline, the additional time difference of each inter-crystal scattering event caused by the time walk effect is obtained, and then the inter-crystal scattering events are secondarily corrected in time online, so that the time resolution of the system is improved.

The application belongs to the technical field of signal processing, and specifically discloses an anti-deception interference method and system based on dynamic weight and timing constraints, wherein the method comprises the following steps: using a field programmable logic gate array to perform hardware-level real-time preprocessing on synthetic aperture radar original echo data, and triggering hardware-level adaptive routing truncation according to an amplitude distortion gradient, and outputting preprocessed data after algorithm power deployment; based on the preprocessed data, multi-modal features are extracted in parallel, and the multi-modal features comprise image domain incoherent topology features, local phase dispersion degree features and spatial geometric constraint features; the application aims to solve the problems of single feature source representation, poor environmental adaptability of fusion mechanism, not using deception interference timing physical contradictions and large model calculation overhead in existing synthetic aperture radar anti-interference schemes, which leads to limited real-time performance.

The application discloses a startup method, a shutdown method, a logic device, a server and a readable storage medium. The logic device is located in the server, and the logic device is in communication connection with a field programmable gate array of the server. After the server is powered on, the logic device is triggered to reload firmware. After the reloading of the firmware is completed, standby components of the server are powered on, and the state of the standby components is monitored. After the field programmable gate array is monitored to start, level information is transmitted to the field programmable gate array. After standby timing control is completed, in the case that a startup signal is received, power-on timing interaction is performed with the field programmable gate array, and a processor is subjected to startup processing. The application has the technical effect that only standby timing and power-on timing of the logic device and the field programmable logic gate array are needed to realize startup action, the decoupling of server startup and shutdown and the baseboard management controller is realized, and therefore the server startup and shutdown are accelerated.

The invention discloses a gated clock conversion method and device, electronic equipment and a storage medium, and relates to the field of chip development and chip test.The method comprises the steps that each gated clock unit in electronic circuit design is obtained, and each gated clock unit is configured in each field programmable logic gate array; obtaining a truth table of each gated clock unit according to the logic expression of each gated clock unit, and splitting the truth table into different sub-truth tables according to the clock signal value to obtain a target sub-truth table with an inconstant output result; and obtaining a sub-logic expression after the clock signal is deleted according to the target sub-truth table, and obtaining an enable signal of the sequential logic device according to the sub-logic expression. According to the technical scheme provided by the embodiment of the invention, not only is the conversion duration of the gated clock shortened and the logic comprehensive performance of the electronic circuit design greatly improved, but also the conversion complexity of the gated clock is reduced.

The invention relates to an intelligent robot using a flexible field programmable logic controller, and relates to the technical field of intelligent welding systems, and the intelligent robot comprises a data acquisition module which is used for acquiring an image of a vehicle body part fixed at a welding processing position; the flexible field programmable logic controller is used for determining path deviation data based on the images of the vehicle body parts and the welding detection paths corresponding to the vehicle body parts and judging whether path adjustment is carried out or not based on the path deviation data, and if yes, a real-time welding path is generated based on the images of the vehicle body parts and a preset welding path; the vehicle body welding module is used for welding vehicle body parts; the welding seam detection module is used for determining welding seam detection light source parameters and collecting welding seam images based on welding parameters in the welding process and the materials of the automobile body parts; and the flexible field programmable logic controller is also used for detecting the welding quality based on the welding seam image. The welding quality of the vehicle body parts is improved.

The application discloses a kind of adaptive error compensation circuit and method based on multi-ring resonator gyroscopes. Including multi-ring resonator gyroscopes, detection electrode, feedback control electrode, improved T-type resistance-capacitance charge amplification filter circuit, ADC analog-digital conversion circuit, field programmable logic gate array, digital signal processing circuit, DAC digital-analog conversion circuit, signal feedback control circuit;Improved T-type resistance-capacitance charge amplification filter circuit is used instead of traditional annular diode amplification filter circuit, improved proportional-integral resonant controller is used instead of traditional proportional-integral controller, more reasonable control error is inhibited, and system control precision is improved.The circuit structure has the characteristics of strong adaptability, good stability, high accuracy, high precision, small size, easy integration, etc., and can be widely applied.

The application provides a high-performance servo driver and a control method, which are applied to the technical field of high-performance servo driver control and include that a servo control loop module is arranged in a digital signal processor, and an AI learning algorithm module is arranged in a field programmable logic array; the AI learning algorithm module: based on operation parameters generated by a servo system where the high-performance servo driver is located, the AI learning algorithm is trained and learned to obtain a characteristic model and an output compensation current component; the servo control loop module: used for performing vibration suppression on the servo system according to the compensation current component. Compared with the prior art, the application can effectively suppress vibrations of arbitrary amplitudes, vibrations of arbitrary time lengths and vibrations caused by arbitrary factors through vibration suppression of the compensation current component; the vibration suppression is performed at the cycle pace of a current loop, so that there is no delay or the delay can be completely ignored relative to a mechanical system, and high-speed or super-high-speed operation occasions can be completely adapted.

1. The name of the design product: field programmable logic gate array security protector shell. 2. The use of the design product: the design product is used to protect field programmable logic gate arrays in the fields of communication, electronics, video signal processing, aerospace, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The present application relates to the technical field of double optical comb spectrum, and specifically discloses a passive suppression method for relative carrier envelope phase noise in a double optical comb spectrum system, which comprises the following steps: constructing a hardware optical path, generating a double optical comb signal through a common pump unit and a differential dispersion compensation unit, and performing phase matching at a physical level by using a passive optical delay matching unit; inputting the double optical comb signal into a field programmable logic gate array core of a customized system-level chip, executing synchronous acquisition and passive suppression processing of phase noise of the double optical comb signal, and obtaining a suppressed signal. In the actual industrial field measurement process, the present application first completes the basic phase constraint of the double optical comb signal at the physical level through common pumping and optical delay matching, then directly uses the field programmable logic gate array core inside the system-level chip to perform real-time passive noise suppression, and seamlessly hands over to the neural network processor core to execute multi-spectrum interference elimination.

The application discloses a video signal generator supporting multiple protocol outputs and timing programming, comprising a power module, a clock module, an optical fiber data receiving module, a cache management module and a multiple protocol video and timing generation module. The application takes a field programmable logic gate array as a core architecture, solves the problems of single protocol and non-self-defined video timing of a traditional video signal generator, has the ability of multiple channel independent and synchronous output and non-standard timing video generation, and can provide required signal sources for development and test of various video display devices.

The utility model provides a lighting test device based on an LED display screen, which comprises a substrate, a key module arranged on the substrate, a receiving card and a test interface capable of being in driving connection with a driving interface of an LED lamp panel to be tested, the receiving card comprises a field programmable logic gate array and a single chip microcomputer, the field programmable logic gate array is connected with the test interface, and the single chip microcomputer is connected with the key module. The single-chip microcomputer is in communication connection with the field programmable logic gate array, and the single-chip microcomputer is also in communication connection with the key module; the key module comprises a color test function key, a gray scale test function key and a scanning test function key which are connected to corresponding function pins of the single-chip microcomputer in a one-to-one correspondence mode. According to the lighting test device based on the LED display screen, a plurality of function keys are separately arranged, the function keys can be randomly selected and directly switched among corresponding test items, the operation is convenient, the test efficiency of troubleshooting, leak detection and reinspection can be effectively improved, and the production efficiency is improved.

The application discloses a path searching method and device in a game, a computer device and a readable storage medium, relates to the game field, and the method comprises the steps of dividing a game map into multiple map blocks; generating a processor module by using a field programmable logic gate array based on a high-level integrated tool; when a path searching request is received, the starting position and the terminal position of a moving target are acquired, and the corresponding starting map block and the terminal map block are determined; if the starting map block is consistent with the terminal map block, the processor module is corresponded to the lattice node of the starting map block, the moving path in the target block is determined by using the processor module, and the moving path in the target block is written back to a preset channel; finally, the central processing unit reads the moving path in the target block in the preset channel, and the target moving path is obtained. Based on this, the execution of the path searching algorithm mainly depends on the processor module generated by the field programmable logic gate array, so that the load of the central processing during path searching is reduced.

The utility model relates to the technical field of power data processing, in particular to an intelligent terminal system for parallel acquisition of multiple concentrators, which comprises an intelligent fusion terminal and a plurality of transformer area concentrators. The intelligent fusion terminal comprises a multi-channel carrier communication module, a signal conditioning circuit, a field programmable logic gate array, an analog-to-digital converter, a processor and a storage module; the signal output end of the multi-channel carrier communication module is electrically connected with the input end of the signal conditioning circuit, the output end of the signal conditioning circuit is connected with the field programmable logic gate array, the field programmable logic gate array is connected with the processor through the analog-to-digital converter, and the processor is electrically connected with the storage module. The field programmable logic gate array is used for carrying out timestamp marking on the electric energy data transmitted by the transformer area concentrators, real-time synchronization of the data is achieved, and the problem of data conflict caused by synchronization mechanism faults is effectively avoided.

The invention provides an endoscope image processing method, an endoscope imaging device and a storage medium. The processing method is executed through a field programmable logic gate array and an off-chip memory. And the field programmable logic gate array executes the following steps: acquiring the endoscope image and caching the endoscope image to the off-chip memory. Determining a coordinate range of a target image according to the endoscope image, and segmenting the target image into image blocks; for each image block, a source coordinate value of the image block is determined, and a reading address range of a source pixel is further determined. And for each image block, reading the off-chip memory based on the read address range of the source pixel to obtain read data of the image block. And for each to-be-assigned pixel, determining a source coordinate value based on the coordinate value of the to-be-assigned pixel and the corresponding relationship so as to determine a source pixel value, and further determining a pixel value assigned to the to-be-assigned pixel. According to the scheme of the embodiment of the invention, the overall generation efficiency of the target image can be improved.

The invention relates to the technical field of digital electronic measuring instrument testing, and discloses a micro-nano hyperspectral load on-orbit adaptive radiometric calibration data inversion system, which comprises a signal interception unit, an excitation injection unit, a feature extraction unit, a calibration parameter calculation unit and a data reconstruction unit, the method comprises the following steps: acquiring an electric background sampling code stream reflecting fluctuation of a read link by capturing a row blanking trigger signal in an imaging protocol, synchronously driving an idle gate circuit in a field programmable logic gate array to execute specific sequence overturning, and inducing inductive charge perturbation on a quantized link reference power rail; according to the method, decoupling of the calibration process and the physical reference source is realized, so that the load has the endogenous self-calibration capability of capturing and reading the electrical drift of the link in real time, and the radiation fidelity of the load in a complex space environment is ensured.

The utility model relates to the technical field of cable monitoring, and discloses a cable on-line monitoring and fault early warning and positioning system, which comprises a high-frequency sensor group arranged on a cable shielding layer grounding wire; the current traveling wave acquisition unit comprises a signal conditioning circuit, a high-speed analog-to-digital conversion trigger assembly, a field programmable logic gate array, a central processing unit and a communication module which are electrically connected in sequence; wherein the field programmable logic gate array is electrically connected with a static random access memory. Based on the combined design of the high-frequency sensor group and the field programmable logic gate array, the high-frequency sensor group can capture transient traveling wave signals of the cable shielding layer grounding wire in real time, and high-frequency fault characteristics which cannot be detected by a traditional sensor are covered.

The invention relates to a system and method for an industrial personal computer to receive an AUTBUS message and a storage medium, in the system for the industrial personal computer to receive the AUTBUS message, a field programmable logic gate array module can process an Ethernet frame to generate data in a preset format, a peripheral component interconnection bridging chip can store the data in the preset format in a hardware buffer area, and the data in the preset format can be stored in the hardware buffer area. And the storage address of the hardware buffer area is mapped to the virtual address of the host memory, so that the user mode program module can directly access the data in the preset format according to the virtual address, and through the cooperation of the field programmable logic gate array module and the peripheral component interconnection bridging chip, kernel drive is not needed, and the data access efficiency is improved. High-speed receiving and processing of Ethernet data can be completed in the user mode, and the data transmission efficiency and the system response speed are improved.

The application discloses a kind of multi-dimensional rotation ultrasonic phased array electromechanical combined control acoustic levitation device, belong to acoustic levitation technical field, including two-dimensional rotating device, three-dimensional space movement control platform, ultrasonic phased array, single-chip module, field programmable logic gate array module, ultrasonic vibration element driving circuit module and motor driving circuit module;Single-chip module, field programmable logic gate array module, ultrasonic vibration element driving circuit module and motor driving circuit module calculate and issue the square wave signal of multiple drive ultrasonic vibration element and the control signal of multiple drive two-dimensional rotating device and three-dimensional space movement control platform, realize the control of the amplitude and phase of the sound wave generated by each ultrasonic vibration element in multiple ultrasonic phased arrays, control the two-dimensional angle and three-dimensional space position of each ultrasonic phased array simultaneously, multivariable collaborative control, greatly improve the control area of ultrasonic phased array, realize the non-contact pickup, transmission and fusion etc. operation of micro object in space.

The application discloses a kind of underwater magnetic field measuring devices based on diamond NV color center, comprising: diamond NV color center module, incident laser excitation module, multi-channel optical coupling module, microwave excitation module, fluorescence acquisition and photoelectric conversion module, signal processing and control module and magnetic field module;Multi-channel optical coupling module is used to divide optical fiber into multiple paths, collect the fluorescence generated by diamond block: microwave excitation module is used to switch between two single quantum resonance frequencies to drive NV color center to realize double quantum DQ reading;Signal processing and control module includes field programmable logic array chip FPGA processing unit.The application uses the double quantum DQ operating point of diamond NV color center as a measurement channel, removes the common-mode influence of D through differential measurement, significantly suppresses the D drift problem caused by temperature drift, stress and material aging from a physical point of view, so that the device can still achieve ultra-high sensitivity measurement in complex underwater environment.

The application provides a kind of original gravity wave detection signal reading system and method, the system includes: field programmable logic gate array, the field programmable logic gate array includes digital sequence storage module and logic processing module;Digital-analog converter, for converting the first digital signal read from the digital sequence storage module into first analog signal;Detector array, for adjusting the first analog signal based on original gravity wave detection signal, output second analog signal;Analog-digital converter, for converting the second analog signal into second digital signal, and the second digital signal is sent to the logic processing module;Processor, for processing the logic processing signal, output the phase image data of original gravity wave detection signal.The original gravity wave detection signal reading system and method provided by the embodiment of the application improve the reading efficiency and accuracy of original gravity wave.

The application discloses a PUF-based convolutional neural network model intellectual property protection method, which comprises the following steps: implementing a physical unclonable function on a field programmable logic gate array to provide a unique fingerprint bound with the specific field programmable logic gate array. A true data set and a false data set are used to train a convolutional neural network model to obtain a true model and a false model, and two parameter matrices of the same layer of the true model and the false model are mixed by executing a confusion algorithm to utilize the physical unclonable function response. After the confusion is completed, a recovery convolution layer dependent on the physical unclonable function response is added to the model, so that the correct result can be calculated only when the convolutional neural network model runs on the specific field programmable logic gate array. Thus, the physical unclonable function is used for IP protection of the convolutional neural network model, and the IP protection work is advanced from after the model is stolen to before the model is stolen.

The application provides a laser radar point cloud algorithm for filtering out particles in a special environment, comprising: sampling laser echo signals through two high-speed comparators in a front-end hardware circuit, obtaining two echo sampling results, and inputting the two echo sampling results into a field programmable logic gate array (FPGA); performing a multiple echo detection algorithm in the FPGA; identifying and marking noise echoes caused by air particles according to the two echo sampling results; completing preliminary processing to obtain point cloud data after preliminary processing; dynamically adjusting a radius value in a radius filtering algorithm based on the cosine theorem according to a measurement distance of the laser radar; and performing the radius filtering algorithm on the point cloud data after preliminary processing; identifying and filtering out discrete point noise based on a set radius value and a near neighbor point quantity threshold, so that filtering out of interference particles in the special environment is realized.

The application provides a spaceflight processor readback refresh device and method, when the processor gives an address, data and a write signal to a field programmable logic gate array (FPGA), the FPGA receives the address, decodes the address and then writes the data into a memory; when the processor gives an address and a read signal to the FPGA, the FPGA receives the address, decodes the address, latches the decoded address, reads corresponding data from the memory according to the decoded address, latches the read data, returns the read data to the processor and writes the latched data into the corresponding address in the memory again. The application has the advantages of solving the problems of high price and large size of a traditional spaceflight processor and a matched memory, using an industrial-grade processor under the premise of guaranteeing design reliability and reducing the cost of a space computer.