381results about How to "Consume less resources" patented technology

The invention discloses an ASIP based on an extensible processor architecture and a realizing method thereof, which mainly solve the problem of high circuit complexity and large resource consumption in the prior art. Aiming at the extensible processor architecture after optimization, the invention adopts a five-level-pipeline realizing method, and adopts a data orientation technology and a branch non-execution strategy to solve data hazards and control hazards in pipeline treatment respectively. The ASIP comprises an instruction fetch unit, a decoding unit, an execution unit, a memory access unit, a write-back unit, a pipeline control unit, a timer and an interrupt controller. According to the ASIP and the method, the characteristics of a pipeline processor and an FPGA (field-programmable gate array) are considered sufficiently, the pipeline structure is partitioned reasonably, and the hardware resources of the FPGA are utilized to the utmost extent; and the ASIP and the method have the advantages of simple circuit design, low resource consumption, high processor performance and low power consumption, and are highly suitable for large-scale parallel processing.

The invention provides a compressed sensing-based antifriction bearing fault diagnosis method based on a working condition disturbance condition. The antifriction bearing fault diagnosis method comprises signal compression, front fault diagnosis and a far-end signal reconstruction algorithm. The method utilizes a vibration signal of a bearing to perform fault diagnosis. Based on the compressed sensing theory, a measuring matrix is constructed and compression of vibration signals is realized so that the transmission bandwidth consumption of the vibration signals of the bearing is effectively reduced. The on-board fault diagnosis part utilizes the compression reference matrix, the matching pursuit algorithm to realize fault diagnosis under the working condition disturbance condition through the reconstruction matching method. Based on the on-board fault diagnosis, the far-end signal reconstruction can be realized through the reconstruction matching method so that fault diagnosis enhancement and performance assessment of the far end can be realized. The method system is complete and is suitable for the working condition disturbance condition, and is high in the accuracy of fault diagnosis and is high in engineering practicality.

The invention provides a satellite-based AIS signal intercept and demodulation method and aims to provide a demodulation method which can simplify configuration and complex degree of receiving equipment and can be adapted with large Doppler frequency shift and long signal time delay and realizes relatively low consumed resource amount. The method is realizes through the following steps of directly performing RF AD sampling after amplification filtering is performed on a signal which is received by an antenna; performing two-path digital channelization preprocessing on the AD sampling data in an FPGA, and outputting two paths of baseband IQ data; respectively calculating instantaneous phases of the two paths of baseband IQ data, and performing 1bit differential algorithm processing on the instantaneous phases for obtaining an instantaneous frequency; performing comparison decision on a buffered instantaneous frequency value f(n) with a frequency central value, and performing correlation operation on a decision result and a standard synchronous sequence; on the condition that a correlation operation value exceeds a threshold and reaches a highest value, determining demodulation bit synchronization and finding out an optimal sampling point for demodulation; detecting a signal end mark in the demodulation process, and outputting all demodulation results on the condition that the end mark occurs.

The invention relates to a paper pouring channel pipe for forging, which is made of waste paper pulp, sintered filling materials, binding materials, reinforcing agent and moisture-proof agent materials. The new concepts and mechanisms completely different from the prior art are applied to the paper pouring channel pipe, namely the pouring channel pipe is not made of the prior used refractory materials such as pottery, porcelain and the like, and non-fireproof paper pulp fibers are taken as a main component which is added with the sintered filling materials and the like, carbonized and sintered under the using conditions of high temperature and oxygen deficiency to form a carbon sinter with high fire resistance degree and the paper pouring channel pipe which achieves the molten iron scouring resistance and fire resistance degree capable of meeting the current forging process requirements. The paper pouring channel pipe has the advantages of regenerative resource utilization, no forging, energy conservation, environment pollution reduction, socket joint, no sand leakage, convenient use, little dust during cutting, light weight, little resource consumption, no easy damage at normal temperature, crispness after high temperature treatment, easy stripping, easy cleaning, little hard solid waste after pouring, abrasion reduction of a sand regenerating device, improvement on the quality of regenerated sand, reduction on the defective index of forged pieces, no carburization problem for the forged pieces, and the like.

The invention provides a sleep monitoring method and device and a radar system based on a frequency modulated continuous wave millimeter wave radar. The method comprises the steps that a first reflection signal of target space under an unmanned state and a second reflection signal of the target space under a manned state are collected through the frequency modulated continuous wave millimeter waveradar; the frequencies of the first and second reflection signals are mixed with a local oscillating signal respectively to obtain a first frequency mixing signal and a second frequency mixing signal, wherein the local oscillating signal is a signal which has the same frequency as a transmission signal from a moment generated by the frequency modulated continuous wave millimeter wave radar. The respiratory frequency, heart beating frequency and body turning frequency of a target person are obtained according to the first and second frequency mixing signals. A detecting signal is extracted ina manner in which the frequencies of the transmission signal and a receiving signal are mixed, the circuit designing is simple, resources consumed by hardware is less, and the cost is saved.

The invention relates to the field of digital image processing and provides an image amplification algorithm which can still keep the edge of an image clear after the image is amplified in a large scale, has a low calculated amount and is convenient for hardware implementation. The invention adopts the technical scheme that a piecewise linear interpolation method applied to video image amplification comprises the following steps of calculating each interpolating point in both horizontal and vertical directions; carrying out weighting on gray levels of four adjacent source pixel points; firstly, carrying out weighting calculation on two source pixels at the upper part and two source pixels at the lower part according to horizontal distances from the source pixels to the interpolating points so as to obtain two middle pixel points; and then carrying out weighting calculation on the two middle pixel points according to vertical distances from the two middle pixel points to the interpolating points so as to obtain gray levels of the interpolating points to be calculated, wherein when the interpolating points are calculated, processing is carried out according to conditions, i.e. according to difference between the gray levels of two adjacent sources, corresponding different interpolation curves are selected to carry out calculation. The piecewise linear interpolation method is mainly applied to digital image processing.

The invention discloses a general method for configuring a WiFi device to make the same to connect a WiFi router. The method includes the following steps that: step 1, a unidirectional physical data transmission channel is established between the WiFi device and the WiFi router; step 2, user configuration data are written and are adopted as multicast data packets, wherein the user configuration data include the SSID and password of the WiFi router; step 3, the WiFi router continuously sends the multicast packets through IP multicast; step 4, the WiFi device continuously scan all channels at intervals until a certain channel captures the multicast packets of a WiFi link layer, captures the multicast packets of the WiFi link layer, and filters the captured multicast data packets through a destination MAC address and multicast information so as to filter out illegal data packets, and obtains legitimate data packets, decrypts the data packets, performs analysis to obtain the SSID and password in the data, and is connected to the WiFi router; and step 5, if the WiFi device is successfully connected to the WiFi router, the WiFi device returns successful connection information to the WiFi device, otherwise, the method returns to the step 4, and scanning is further carried out.

The invention discloses a preparation method of aerogel. The preparation method comprises the steps of reacting to obtain SiO2 aerogel by taking NaHCO3 or NH4HCO3 and sodium silicate Na2O nSiO2 as materials; and conducting aging, washing, solvent replacement, surface finishing and drying on the aerogel to obtain a silica aerogel product. During the adoption of the technical scheme, since washing liquor recovered after washing mainly contains Na2CO3 or also NH3 H2O, reaction materials can be obtained again by CO2 reaction, and therefore, all chemicals can be recycled, except a silicon source; the material cost of the silica aerogel is lowered; meanwhile consumed resources are reduced; the problems in the prior art inorganic acid or alkali is consumed and then waste water containing acid, alkali and salt is generated so as to cause environment pollution and the like are solved; and emission and environment pollution are reduced.

An embodiment of the invention provides a multi-target tracking method and system and relates to the technical field of image processing. The multi-target tracking method and system is characterized in that filtering is performed in the previous-frame image of a current-frame image to predict the position, appearing in the current-frame image, of a moving target in the previous-frame image so as to obtain a tracking result, moving target detection is performed on the current-frame image to obtain a detection result, the detection result is matched and associated with the tracking result to obtain an association result, and the positon of the moving target in the current-frame image is determined according to the association result. The multi-target tracking method and system is wide in application range, high in calculation efficiency, low in resource consumption and good in stability and high in accuracy during actual multi-target tracking.

The invention discloses a preparation method of an antibacterial hydrophobic ZnO nanorod. The preparation method comprises the following steps: (1) mechanical polishing of titanium pieces: the titanium pieces are polished in sequence to obtain smooth surfaces; and the polished titanium pieces are positioned in acetone, anhydrous ethanol and de-ionized water in sequence for respective ultrasonic cleaning by 15 minutes, and are naturally dried at room temperature for future use; (2) preparation of a ZnO seed layer: the polished titanium pieces obtained in the step (1) are used as a substrate to plate the uniform ZnO seed layer; and (3) preparation of a ZnO nanorod: the substrate coated with the ZnO seed layer in the step (2) is reversely suspended in water solution of zinc nitrate hexahydrate and hexamethylenetetramine for hydrothermal reaction and natural cooling; and after the substrate is taken out for cleaning by the de-ionized water, the substrate is dried to form the ZnO nanorod. The ZnO nanorod has the advantages of: better antibacterial efects, no need of high-temperature heating, no harmful gas, economy, environmental protection, broad spectrum, high efficiency, long bacteria resistance and a certain biological compatibility.

The invention provides a panoramic video collection method based on an unmanned platform, and the method comprises the steps: generating a wake-up signal after a preset video triggering strategy is met, so as to wake up a panoramic video collection system in a dormant state; wherein the panoramic video acquisition system comprises a plurality of cameras; acquiring video data acquired by each camera; splicing and compressing the video data acquired by each camera to obtain video compressed data; judging whether the vehicle is in a parallel driving mode; and when in the parallel driving mode, sending the video compression data to the cloud server. Therefore, less resources are consumed, and the system load is lower. The pressure of the vehicle-end storage space can be effectively reduced, sothat the service life of the vehicle-end storage unit is longer. And real road conditions around the autonomous vehicle can be effectively analyzed when an accident occurs. And when the vehicle is inan emergency condition, technicians can analyze the dangerous condition afterwards.

The invention relates to a measuring method of amounts of multiple nicotinic medicine residues in royal jelly, in particular to a method of simultaneously measuring amounts of ten kinds of nicotinic medicine residues in royal jelly by a liquid chromatography-tandem mass spectrometry. The method comprises the steps of diluting a sample with water and participating protein preliminarily, and further participating and extracting the protein by using methyl alcohol, wherein measurement is carried out by the adoption of the liquid chromatography-tandem mass spectrometry, and quantity determination is performed by the adoption of an external standard method and an isotope internal standard dilution method in a preprocessing process of HLB solid-phase extraction purification. The method of simultaneously measuring the amounts of the ten kinds of nicotinic medicine residues in the royal jelly by the liquid chromatography-tandem mass spectrometry is simple, convenient and fast, small in resource consumption, and low in measuring cost. The preprocessing process, relevant compounds and instruments required by measurement are complementary to those in an existing method, so that the requirements for simultaneously measuring the amounts of the nicotinic medicine residues in the royal jelly are met, and a powerful technical guarantee can be further provided for maintaining food safety and ensuring the royal jelly quality.

The embodiment of the invention provides an authentication method, device and system, relates to the technical field of communication, and aims to screen authentication behaviors specific to a client on access equipment in order to prevent the client from accessing a network without authorization, reduce resources consumed by authentication and increase the authentication efficiency. The method comprises the following steps: receiving an authentication starting message which includes a client MAC (Media Access Control) address and is sent by the client; matching the MAC address of the client with a preset MAC address table including legal client MAC addresses; and when the MAC address of the client is not matched with the preset MAC address table, discarding the authentication starting message. The embodiment of the invention is used for performing authentication on the access equipment.

The invention provides a non-excavation correction method and apparatus of pipeline center line deviation after pipe-jacking construction. The apparatus comprises a front case, a back case and an elevation adjusting apparatus. Both the front cast and the back case are cylindrical objects. The front part of the front case is connected with a deviation pipeline to be corrected, and a supporting opening is made in the back part of the front case. The front part of the back case is provided with a fixing stand that protrudes out from the end face, the back part of the back case is connected with the to-be-corrected pipeline that is to be connected, and the back case is connected with the front cast by enabling the fixing stand stretch into the supporting opening. The bottom of the elevation adjusting apparatus is placed in the front cast, and the top is connected with the fixing stand that stretches into the supporting opening. The invention further provides a pipe-jacking construction method applied to the center line deviation correction apparatus. The apparatus and method provided in the above scheme can solve the deviation problem of a pipeline center line relative to the designed center line, and the scheme has the advantages of simple mechanical design, low cost and less resource consumption.

The invention discloses a bearing fault intelligent diagnosis method based on compressed sensing and a correlation vector machine. According to the method, fault diagnosis is achieved through vibration signal analysis. The method comprises the steps of firstly selecting a Gaussian random matrix as a measurement matrix based on a compressed sensing theory to realize compressed sampling of signals,secondly constructing an over-complete redundant dictionary to perform sparse representation on the signals, then utilizing an orthogonal matching pursuit algorithm to realize signal reconstruction, and selecting a time domain index sensitive to fault features as a feature vector for the reconstructed signals; and finally, selecting a Gaussian function as a kernel function, dividing a training sample and a test sample by utilizing a feature vector, importing the training sample into an intelligent recognizer of a relevance vector machine model constructed by a relevance vector machine, and comparing a test result with an actual fault type and degree to obtain the effectiveness of the diagnosis model. According to the invention, the problems of difficult transmission and processing of massdata and low signal-to-noise ratio of bearing vibration signals can be solved, and qualitative and quantitative identification of bearing faults can be realized more accurately.