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121results about How to "Reduce detection workload" patented technology

Method and device for identifying traffic of access network

InactiveCN101714952ATraffic identification is validReduce detection workloadData switching networksFeature vectorAccess network
The invention discloses a method and a device for identifying the traffic of an access network. The method comprises the following steps of: extracting a sub-stream, which corresponds to each data stream, from each data stream of the access network; sampling all the sub-streams to obtain sampling sub-streams; identifying the application layer protocol of each sampling sub-stream and establishing a mapping relationship between the sampling sub-stream and the application layer protocol according to the identification result; extracting initial data from each sub-stream and establishing sub-stream characteristic vectors which correspond to the sub-streams according to the initial data; clustering the sub-streams according to all the sub-stream characteristic vectors to form a plurality of clusters; establishing a mapping relationship between the clusters and the application layer protocols according to the mapping relationship between the sampling sub-stream and the application layer protocol; and identifying the application layer protocol, which each sub-stream in each cluster corresponds to, according to the mapping relationship between the clusters and the application layer protocols so as to identify the application layer protocol of the data stream which correspond to the sub-stream in the access network. The method and the device for identifying the traffic of the access network can perform high-speed on-line flow identification for the access network and can identify the application layer protocol of an encrypted data stream in the access network.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Method and instrument for detecting oil gas recovery system of gas station

The invention relates to a method and instrument for detecting an oil gas recovery system of a gas station, in particular to an oil gas recovery detecting method and an intelligent detecting instrument, wherein the detecting method comprises the step of detecting the tightness, the liquid resistance and the gas liquid ratio of the oil gas recovery system of the gas station according to the programmed sequence by adopting a flow and pressure matching mode, and the detection data is automatically saved and can be printed on the spot or transmitted to a computer; and the intelligent detecting instrument comprises an anti-explosion circuit system and a closed gas path system, wherein the anti-explosion circuit system comprises a power supply source, a Roots flow sensor, a digital pressure sensor, a display screen, an input keyboard, a single chip microcomputer processing module, a data memory, a printer interface, a data transmission interface and the like, the closed gas path system comprises a flow sensor, a pressure sensor, a pipe fitting, a flexible pipe and a quick joint, and the circuit system and the gas path system are matched with a panel to be integrally installed in a box body. The detecting method of the invention is distinct, flexible, simple and convenient; and the detecting instrument of the invention has compact structure and perfect functions and can be carried, used, maintained and repaired simply and easily.
Owner:中机生产力促进中心有限公司

High-sensitivity non-contact line haunting method and device

The invention discloses a high-sensitivity non-contact line haunting device comprising a transmitter and a receiver. The transmitter comprises a generating circuit, a frequency dividing circuit and an amplifying circuit; the master frequency signal generated by the generating circuit is subjected to the frequency dividing by the frequency dividing circuit and is formed into the divided-frequency signal, and then the divided-frequency signal is amplified into the amplified signal by the amplifying circuit; the amplifying circuit is connected with a lead and is used for transmitting the amplified signal through the lead; the receiver comprises a receiving circuit, a frequency-selecting amplifying circuit and a complex frequency dividing circuit; the receiving circuit comprises a carbon rod coil and is used for receiving the amplified signal and delivering the received amplified signal to the frequency-selecting amplifying circuit for further amplification and to the complex frequency dividing circuit for frequency dividing; and the output end of the complex frequency dividing circuit is connected with an indicator. The high-sensitivity non-contact line haunting device is more sensitive and can reduce the noise, improve the work efficiency and the anti-interference capacity of a detecting device and lower the detection intensity. The invention also discloses a high-sensitivity non-contact line haunting method.
Owner:东莞市杉木电子有限公司

Non-contact type wire tracing method and device

The invention discloses a non-contact type wire tracing device which comprises a transmitter and a receiver, wherein the transmitter comprises a signal generating module, a modulating module and an amplifying module. A main frequency signal generated by the signal generating module is used as a carrier signal, forms a modulating signal by a modulating module, and forms an amplifying modulating signal by the amplification of the amplifying module. The amplifying module is connected with a conducting wire and transmits the amplifying modulating signal through the conducting wire. The receiver comprises a receiving module, a frequency-selecting amplifying module, a demodulating module and an identification generation audio module, wherein the receiving module comprises a carbon rod coil for sensing the amplifying modulating signal transmitted by the transmitter, and the sensed and received amplifying modulating signal is sent to the frequency-selecting amplifying module to amplify and then demodulated by the demodulating module; the demodulated amplifying modulating signal enters the identification generation audio module to identify and generate a corresponding audio signal; and theoutput end of the identification generation audio module is connected with an indicator. The invention also discloses a non-contact type wire tracing method.
Owner:东莞市杉木电子有限公司

Herringbone tooth inner gear ring machining method

The invention discloses a floating-type combined herringbone tooth inner gear ring machining method. The method includes the following steps that internal teeth and external splines are machined at any circumferential position; the center phase difference of internal tooth grooves and external spline tooth grooves of any pair of adjacent internal teeth and external teeth is detected; the detectedinternal and external tooth grooves are used as a starting point, the phase difference detection result is used as an initial value, and the phase differences of the remaining internal tooth grooves and the adjacent external tooth grooves are calculated in sequence; the internal and external tooth grooves corresponding to the minimum value in the phase difference calculation result are marked as datum tooth grooves; and a mathematical model is established on the basis that the internal and external tooth phase difference detection result of the initial point is used as a constant, and the tooth number distance of the datum tooth grooves to be marked and starting point tooth grooves is used as a variable, and an iterative operation rule is further adopted for calculation. The herringbone tooth inner gear ring machining method has the beneficial effects that the machining route is short, the clamping number is small, detection workloads are also small, machining precision and efficiencyare high, the quality guarantee capability is also high, and manufacturing cost is low.
Owner:CHONGQING GEARBOX

Method of improving soybean genetic transformation efficiency by virtue of synergism of surfactant and ultrasonic waves and application of method

ActiveCN103614413AReduce necrosis rateHigh Resistant Cluster Bud RateFermentationGenetic engineeringTransformation efficiencyGenetically modified soybean
The invention discloses a method of improving the soybean genetic transformation efficiency by virtue of the synergism of a surfactant and ultrasonic waves and an application of the method. The method is an agrobacterium tumefaciens mediated soybean cotyledonary node genetic transformation method and comprises the following steps: infecting a soybean cotyledonary node explant by virtue of a recombinant agrobacterium tumefaciens containing a target DNA (Deoxyribonucleic Acid) to obtain an infected explant, co-culturing the infected explant to obtain the infected explant after co-culture, and completing the transformation, wherein the infected explant obtained by infecting the soybean cotyledonary node explant by virtue of the recombinant agrobacterium tumefaciens containing the target DNA is the infected explant obtained by arranging the soybean cotyledonary node explant into an infection liquid of the recombinant agrobacterium tumefaciens to carry out ultrasonic treatment, the infection liquid contains the surfactant, and scratches are not made at the cotyledonary node position of the soybean cotyledonary node explant. The method can be used for culturing a novel variety of transgenic soybeans as well as excavating and identifying gene functions.
Owner:INST OF CROP SCI CHINESE ACAD OF AGRI SCI

Multi-acupoint dynamic channel and collateral detector

A multi-acupoint dynamic channel and collateral detector comprises a microprocessor, an acupoint excitation assembly and a collection module. The acupoint excitation assembly is provided with an acupoint excitation terminal, an excitation power source module and an excitation power line, and the excitation power source module is controlled by the microprocessor. The collection module is provided with a collection assembly, an analog-digital conversion chip, at least one gate chip and a sampling resistor, and the gate chip and the sampling resistor are connected. The collection assembly comprises a busbar and a plurality of measuring terminals, the gated measuring terminal serves as a current measuring terminal, one end of the sampling resistor is grounded, and the other end of the sampling resistor is connected with the analog-digital conversion chip. The analog-digital conversion chip obtains voltage at the two ends of the sampling resistor. The microprocessor calculates equivalent impedance of channels and collaterals of a human body. The detector has the advantages that channel and collateral resistance and information of acupoints on the body of a patient can be measured at the same time, difference in collection conditions of the acupoints is reduced, and testing precision and efficiency of the acupoints are improved.
Owner:佛山市取经科技有限公司

Apparatus and method for detecting the radial runout of shaft component

InactiveCN103776331AOvercome the defects of traditional detection methodsGuaranteed detection accuracyMechanical measuring arrangementsSlide plateSaddle-shaped
The invention discloses an apparatus and method for detecting the radial runout of shaft components. The apparatus comprises a saddle-shaped seat, a dial indicator, a slide plate, a positioning board, a fixing bolt, and two rolling balls. The positioning board is vertically disposed on one end of the slide plate. The slide plate is moved in a chute on the top plate of the saddle-shaped seat and is fastened by the fixing bolt. The dial indicator is arranged on the top surface of the saddle-shaped seat and the probe of the dial indicator is extended out of the top edge of the saddle-shaped seat. The two rolling balls are disposed on the bottom surfaces of the two sides of the saddle-shaped seat, respectively. The saddle-shaped seat is placed on the surface of a shaft component. The positioning board is abutted against the end face of the shaft component. The saddle-shaped seat is rotated along the surface of the shaft component and readings on the dial indicator are recorded. The difference between a maximum dial indicator reading and a minimum dial indicator reading is a value of the radial runout of the shaft component. The apparatus and the method can be used in a production field for easily detecting the radial runout of shaft components, and has advantages of overcoming a defect of a conventional detecting manner, guaranteeing detection precision, effectively increasing detection efficiency, decreasing detection workload, and reducing equipment maintenance and overhaul cost.
Owner:SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE

Method and system for judging consistency of metering device based on pattern recognition

The invention discloses a method and a system for judging the consistency of a metering device based on pattern recognition. The method comprises: collecting images of different parts of an inspectedammeter by an industrial microscope; conveying the collected images to a determination system for image processing; acquiring and storing feature signals of binary images and the images of the different parts of the inspected ammeter into a database as standard feature signals of ammeters of the inspected batch; obtaining feature signals of images of different parts of a delivered ammeter or an onsite ammeter of the same batch as the inspected ammeter; and comparing the feature signals of the delivered ammeter or the onsite ammeter with the standard feature signals stored in the database to obtain the similarity, and determining the delivered ammeter or the onsite ammeter is an ammeter as same as the inspected ammeter according to the similarity. The method provided by the invention can automatically identify that whether the ammeter delivered by the ammeter supplier and the inspected ammeter are in the same batch and whether the onsite ammeter installed on the user site is artificially replaced, thereby reduce the manual workload, and improving the working efficiency.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1

Coaxiality measurement device and detection method for mounting of vertical shaft steel lining of hydraulic floating vertical ship lift

A coaxiality measurement device for mounting of a vertical shaft steel lining of a hydraulic floating vertical ship lift comprises a measurement instrument and a detection work platform. In the measurement instrument, a fixed hole plate is mounted in the design center of a steel lining bottom plate, and a floater, a press plate and a connecting rod are connected to form a whole and then placed in a floating bucket; and the detection work platform is composed of multiple layers of connected work platform bodies, and in each work platform body, one end of each of 16 stud ejector rods equally dividing the circumference into 16 parts is connected with a center support, and the other end of each stud ejector rod is matched with the inner wall of a vertical shaft steel lining joint. According to the coaxiality measurement device and detection method for mounting of the vertical shaft steel lining of the hydraulic floating vertical ship lift, the problems that the workload is large, and precision is not high can be solved; operation is easy and convenient, the detection workload is reduced, and the construction progress is accelerated; and the detection precision of the measuring range being 50 m or above is not larger than 0.5 mm.
Owner:CHINA GEZHOUBA GRP MECHANICAL & ELECTRICAL CONSTR
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