36results about How to "Reduce the number of probes" patented technology

The invention discloses a roadway drivage drilling induced polarization advance water probing forecasting method, device and probe. The probe is placed in a drill hole; a power supply negative electrode B is mounted in a roadway outside the drill hole and is connected with an on-site main machine by a power supply cable; a power supply positive electrode A, a measuring electrode M and a measuring electrode N of the probe are mounted inside the drill hole, and are connected with the on-site main machine by the power supply cable and a signal cable; the power supply positive electrode A and the power supply negative electrode B outside the drill hole form the power supply cable; the on-site main machine measures an electric field change signal by the measuring electrode M and the measuring electrode N of the probe; and the electric field change signal is input to the main machine to calculate and detect the apparent resistivity and apparent chargeability of a target; the probe is propelled to repeat the steps at each measuring point to measure the apparent resistivity and apparent chargeability of each point and generate a resistivity profile map and a chargeability profile map; and the rate of change of the apparent resistivity and apparent chargeability is calculated to determine an inner geological structure taking a drilling axis as a central cylindrical space.

The invention provides a high-performance OpenFlow virtual flow table searching method. Aiming at the problem of high flow table searching overhead in an OpenFlow virtual switch, a flow table item caching mechanism is firstly designed, so that most of data packets directly hit a cache to find corresponding flow table items, and a mask detection process and a flow table searching process corresponding to mask detection are bypassed; secondly, an SMA1 mask heuristic strategy is designed, and the successfully detected active masks forward are moved by one position each time, so that all the active masks are adjusted to the front positions of the mask arrays after a series of accesses, thereby reducing the average mask detection times of the data packets. In addition, an extensible counting type SCBF filter is adopted to quickly judge a flow table searching failure result, meanwhile, it is guaranteed that the false positive error rate is always kept at a low level, and therefore the flowtable searching traversal process when mask detection fails is avoided. According to the method, the average flow table searching overhead of the data packets can be remarkably reduced, the packet classification speed is greatly increased, and the packet switching performance of the OpenFlow virtual switch is effectively improved.

The invention provides an omnidirectional slot wave seismic detection method in a coal mine excavation process. The method comprises the steps of hardware connection and system arrangement, data acquisition, seismic data preprocessing, data processing analysis and offset imaging and comprehensive geological interpretation. Compared with the prior art, the method provided by the invention has the advantages that the omnidirectional slot wave detection method can timely predict left and right working faces, and the coal seam occurrence, geological structure, stress pressure and the like in front of a heading face, and provides geological parameters and recommendations for excavation and recovery; coal mine geological hazards can be effectively controlled; casualties caused by geological causes are reduced; the coal mine safety is protected; through the method, the detection distance of left and right side walls of a roadway is up to 100 to 300 meters each time, and the front of the heading face is up to 100 meters; a large number of detection times can be saved in the excavation process; and the detection efficiency can be improved.

The invention discloses a dam seepage electric field three-dimensional scanning automatic detection device, which is characterized in that a multi-frequency electric field signal transmitter of the device is placed on a dam, an electric field negative electrode is arranged in a water body, which is 200m-1000m away from a suspicious seepage point, at the upstream of the dam, an electric field positive electrode is arranged in a water body at the downstream of the dam, the electric field negative electrode is connected to a negative electrode wiring terminal of the electric field signal transmitter, the electric field positive electrode is connected to a positive electrode wiring terminal of the electric field signal transmitter, and the electric field positive electrode, the multi-frequency electric field signal transmitter, the electric field negative electrode and the suspicious seepage point form a power supply electric field loop; and a field receiving system is used for performing detection on the power supply electric field loop and can determine an electric field gathering area, so that the location of the dam seepage point is tracked. The dam seepage electric field three-dimensional scanning automatic detection device and method can perform automatic tracking and quick searching on the dam seepage point.

The invention relates to an ultrasonic flaw detection method of a train wheel, and in particular relates to a liquid guide ultrasonic probe array flaw detection test method of a train wheel. The method comprises the following steps of: sequentially distributing a plurality of probes under a rail surface at intervals, and realizing the direct coupling of an ultrasonic wave with a wheel set tread through wave carrying liquid by liquid guide ultrasound; and forming a fan-shaped scanning region by each probe due to a position relationship between each probe after the region above the probe is ground by the wheel and the wheel, and synthesizing all the fan-shaped scanning regions together to form a scanning detecting region containing the whole wheel, wherein the ultrasonic wave is conducted to the wheel from the probes through a liquid medium to complete the scanning type ultrasonic flaw detection of the whole wheel in a manner of non-direct contact. The ultrasonic flaw detection method has the advantages of being extreme in coupling performance, and stable and reliable; the method is high in detecting performance, wherein the detecting density is 10-20 times as thick as that of the current array type equipment, and the quantity of the probes is 1 / 5-1 / 10 that of the current array type equipment; and the method is free from mechanical contact and mechanical motion parts, so that the equipment can be convenient to install and maintain.

The invention provides a regular detection system of P2P node survivability and a method. The system comprises an information collecting module, an information processing module, a detecting module and a responding module, wherein the information collecting module collects the node connection information in the recent detection period, and initializes the node status attribute of a routing table; the information processing module determines which nodes need to be detected in the next detection period and which nodes need to be delayed to be detected according to the node status attribute of the routing table; the detecting module detects the nodes which need detection when the next detection period comes, changes all node flag bits in all connection tables, continues to collect returned connection information and updates the node status attribute of the routing table; and the responding module responds correspondingly after the node receives detection information so as to update other nodes. The invention fully takes the communication between the nodes on the network into consideration, counts the prior connection information and determines whether detection is carried out or not. The detection times are reduced, and the network bandwidth is saved.

A semiconductor integrated circuit is disclosed which includes: a first D / A converter; a second D / A converter; an amplifier configured to amplify an output of the first D / A converter; an operational amplifier configured to input an output of the second D / A converter; and a selector configured to effect switchover between a normal mode and a test mode, the normal mode being a mode in which the operational amplifier is caused to function as an amplifier for amplifying the output of the second D / A converter, the test mode being a mode in which the operational amplifier is caused to function as a comparator for comparing the output of the second D / A converter with the output of the first D / A converter. According to the present invention, it is thus possible to reduce the number of probes to be attached to output nodes upon device testing while curbing the packaging area of each device, whereby the number of the devices that can be tested simultaneously is increased.

The invention discloses a super-resolution fluorescence fluctuation microscopy imaging method and device and a storage medium. The super-resolution fluorescence fluctuation microscopy imaging method comprises the following steps: acquiring a plurality of detection images of fluorescent molecule labeled samples by virtue of a fluorescence microscopy imaging system; performing Fourier transform on the detection images to obtain Fourier spectrums of the plurality of detection images; setting initial estimated values of sample structures and fluorescence intensity fluctuations, performing iterative computations for preset times according to a preset iterative algorithm based on the initial estimated values of sample structures and fluorescence intensity fluctuations and the plurality of detection images, and outputting imaging results of the samples. Fluorescence blinking intensity changes serve as random speckles needed in ordinary structured light imaging, and the super-resolution imagesare acquired by virtue of the iterative algorithm, so that the structured light does not need to be introduced by an extra experimental device, the resolution ratio of structured light lighting microscopy imaging can be improved under a low detection frequency, and a balance between the resolution ratio and the imaging cost is realized.

The invention discloses an ultra-deep foundation pit enclosure structure plane leakage detection method and aims at the defects of an existing leakage detection method. According to the method, a leakage condition of a complex underground structure can be detected by high-sensitivity measurement of weak ion movement at a leakage position through an electro-osmosis principle. Under the leakage condition, even a slight leakage exists, the change of the electric field of the whole stratum can be generated due to the movement of ions, and for the change, the position with the abnormal electric field can be mastered through a developed multi-channel multi-sensor high-precision measuring system, so that a leakage point can be detected. Particularly, the detection work efficiency of a plurality of sensors can be achieved by arranging the single sensor, and a travel path is planned for the sensors, so that the leakage condition of an enclosure structure at each point position can be detected.The arrangement of the sensors is not needed, on one hand, the working pressure of constructors is reduced, time and labor are saved, and the working efficiency is indirectly improved; and on the other hand, the sensors do not need to be purchased, and the cost is reduced.

The invention belongs to the technical field of network topology discovery and particularly relates to a method for recognizing and processing alias routers in topology discovery. The method comprises the steps that IP address sets are divided into the three classes of an alias relation, a potential alias relation and an undetermined set according to DNS and IP address information, wherein firstly, the definite alias relation is separated according to analysis on DNS information; secondly, in the process of processing the IP address set with the alias relation undetermined, IP addresses in a potential alias relation set are subjected to alias analysis in priority, if two IP addresses are in the alias relation, the two IP addresses are classified in the same address set, and any one of the two IP addresses serves as a set representative; if not, the two IP addresses are added into a non-alias relation address set. By carrying out alias analysis on the potential alias relation address set in priority, the IP address set in the alias relation can be found in a large probability relative to random detection, and the detection scale in the subsequent processing process can be reduced.

The invention discloses a link fault diagnosis method based on time delay. The link fault diagnosis method based on time delay comprises three stages of selection of a detection station, fault detection and fault positioning; time delay is adopted to judge link quality, detections are adopted to obtain link time delay, and a time delay standard of failing detections is given out; and a fault link is diagnosed by adopting an adaptive detection method, part of detections are selected to detect whether a fault is generated in a network, and then in the fault positioning stage, the detections are further selected to position the fault link. According to the link fault diagnosis method disclosed by the invention, the fault link can be accurately positioned, and less communication traffic is generated; and an experimental result shows that by the link fault diagnosis method disclosed by the invention, not only can the fault link be diagnosed, but also the number of the sent detections can be greatly reduced in the fault diagnosis process, and influence of the detections sent out in the fault diagnosis process on the network is reduced.

The invention discloses an ultra-deep foundation pit enclosure structure plane leakage detection method and aims at the defects of an existing leakage detection method. According to the method, a leakage condition of a complex underground structure can be detected by high-sensitivity measurement of weak ion movement at a leakage position through an electro-osmosis principle. Under the leakage condition, even a slight leakage exists, the change of the electric field of the whole stratum can be generated due to the movement of ions, and for the change, the position with the abnormal electric field can be mastered through a developed multi-channel multi-sensor high-precision measuring system, so that a leakage point can be detected. Particularly, the detection work efficiency of a plurality of sensors can be achieved by arranging the single sensor, and a travel path is planned for the sensors, so that the leakage condition of an enclosure structure at each point position can be detected.The arrangement of the sensors is not needed, on one hand, the working pressure of constructors is reduced, time and labor are saved, and the working efficiency is indirectly improved; and on the other hand, the sensors do not need to be purchased, and the cost is reduced.

The invention discloses a method and device for improving power optical fiber state monitoring precision and a storage medium, and the method comprises the steps: dividing a preset frequency scanning range, and obtaining a plurality of scanning frequencies; controlling a light source in the monitoring device to output a light beam according to any one of a plurality of scanning frequencies, and monitoring the state of the power optical fiber; controlling the monitoring device to carry out measurement for preset times to obtain a plurality of measurement values; changing the frequency of the light beam output by the light source according to the plurality of scanning frequencies, and measuring the prediction times again until the measurement results under the plurality of scanning frequencies are obtained; and processing the measurement results under the plurality of scanning frequencies to obtain multi-parameter monitoring data of the power optical fiber. According to the invention, the measurement precision can be effectively improved. Therefore, the method for improving the monitoring precision of the power optical fiber state can be used for monitoring the state of the long-distance power optical fiber, and the problem that the monitoring precision of the long-distance power optical fiber is insufficient is solved.

The invention discloses a software-defined network topology discovery method and system, and the method comprises : a controller calculates minimum coverage sets of switches of a software-defined network, so that at least one of the switches at the two ends of each link of the software-defined network is in the minimum coverage sets of the switches, and the number of the minimum coverage sets of the switches is minimum; the switches in the minimum coverage sets detect opposite-end switch information and port information of each undetected connected link, and report two-end switch information and port information of the detected link to the controller; and the controller generates network topology information according to the two-end switch information and the port information of the link . According to the method, the software defined network topology discovery can be realized, and the processing overhead and the network bandwidth consumption of the software defined network topology discovery are reduced.

The invention relates to a streaming data security vulnerability tracing method and system in a video conference scene. The method comprises the following steps: video conference stream data acquisition: by an analyzer, simulating an attacker to monitor a video conference by using a traffic analysis tool; video conference stream data feature extraction: extracting feature vectors of the video conference stream data according to a feature value extraction scheme; characteristic vector grouping analysis: grouping the characteristic vectors according to a certain rule to ensure that the characteristic vectors are mapped to certain data characteristics in the group; and mapping vulnerabilities and tracing back: positioning key features, and tracing back a problem corresponding to the feature group with the highest privacy exposure. According to the method, traceability of security holes can be realized, and the data security performance of video conferences is improved.

The invention provides a chip testing probe and a chip testing device, and belongs to the technical field of chip testing. The chip test probe comprises a test probe body used for detecting an electric signal on a to-be-tested chip when a test end portion of the test probe body is in contact with the to-be-tested chip; the light guide part is made of high-purity silicon dioxide and used for conducting light signals, the light guide part is arranged on the peripheral side surface of the test probe body or in the test probe body, one end of the light guide part is used for being arranged opposite to the chip to be tested, and the other end of the light guide part is used for being connected with an infrared temperature measuring device. And the infrared temperature measuring device calculates the temperature of the chip to be measured according to the received optical signal which is emitted by the chip to be measured and is conducted through the light guide part. According to the chip test probe and the chip test device, the measurement accuracy of the chip temperature can be improved.

A method for detecting topologically in a mobile IP system is that a managing terminal sends a requirement of topological detection to a managed terinal in the web, the managed terminal replies directly the information of distribution of the current resources to the managing terminal after receiving the requirement of topological detection, and the managing terminal establishes the topological conditions of web of the managed terminal according to the information of distribution of the current resources replied by the managed terminal. And the managing terminal performs a dynamically prediction according to the statuses replied several times before by the managed terminal to calculate the interval of time between the time at which this requirement of the topological detection is sent and the time at which the next requirement of the topological detection will be sent.

The present invention provides a high-performance OpenFlow virtual flow table lookup method, which aims at the problem of high flow table search overhead in the OpenFlow virtual switch, and first designs a flow table item cache mechanism, so that most data packets directly hit the cache to find the corresponding flow table item , so as to bypass the mask detection process and the flow table lookup process corresponding to the mask detection; secondly, the SMA1 mask heuristic strategy is designed to move the successfully detected active masks forward by one position each time, so that all active masks go through a series of visits Finally, it is adjusted to the front position of the mask array, thereby reducing the average number of mask detection times of the data packet; in addition, the scalable counting SCBF filter is used to quickly determine the failure result of the flow table lookup, and at the same time, the false positive error rate is always kept at a relatively low level. Low level, so as to avoid the flow table lookup traversal process when the mask detection fails. The invention can significantly reduce the average flow table search cost of the data packet, greatly accelerate the packet classification speed, and effectively improve the packet switching performance of the OpenFlow virtual switch.

To provide a semiconductor memory capable of shortening the test time and performing a burn-in test in a wafer state regardless of the configuration of a memory cell array. Ring oscillator 128 is activated by external burn-in test designation signal SBT, and the row address signal output from internal row address generation circuit 122 based on the output is supplied to row decoder 102 after being scrambled by arithmetic circuit 124 . On the other hand, the signal output from the data output circuit 174 is scrambled by the data scrambler 176 according to the activation of the signal SBT, and the data of the check structure corresponding to the physical address of the memory cell array is provided to the memory cell array.

The invention provides a regular detection system of P2P node survivability and a method. The system comprises an information collecting module, an information processing module, a detecting module and a responding module, wherein the information collecting module collects the node connection information in the recent detection period, and initializes the node status attribute of a routing table;the information processing module determines which nodes need to be detected in the next detection period and which nodes need to be delayed to be detected according to the node status attribute of the routing table; the detecting module detects the nodes which need detection when the next detection period comes, changes all node flag bits in all connection tables, continues to collect returned connection information and updates the node status attribute of the routing table; and the responding module responds correspondingly after the node receives detection information so as to update othernodes. The invention fully takes the communication between the nodes on the network into consideration, counts the prior connection information and determines whether detection is carried out or not.The detection times are reduced, and the network bandwidth is saved.

The invention discloses a roadway drivage drilling induced polarization advance water probing forecasting method, device and probe. The probe is placed in a drill hole; a power supply negative electrode B is mounted in a roadway outside the drill hole and is connected with an on-site main machine by a power supply cable; a power supply positive electrode A, a measuring electrode M and a measuring electrode N of the probe are mounted inside the drill hole, and are connected with the on-site main machine by the power supply cable and a signal cable; the power supply positive electrode A and the power supply negative electrode B outside the drill hole form the power supply cable; the on-site main machine measures an electric field change signal by the measuring electrode M and the measuring electrode N of the probe; and the electric field change signal is input to the main machine to calculate and detect the apparent resistivity and apparent chargeability of a target; the probe is propelled to repeat the steps at each measuring point to measure the apparent resistivity and apparent chargeability of each point and generate a resistivity profile map and a chargeability profile map; and the rate of change of the apparent resistivity and apparent chargeability is calculated to determine an inner geological structure taking a drilling axis as a central cylindrical space.

An embodiment of the invention provides a test method and a chip, wherein the test method comprises the specific steps of inputting a voltage to the chip through a fixed voltage interface of the chip; inputting a control command to the chip through a data and command interface of the chip, and stopping inputting the voltage to the chip after the inputting of the control command; after inputting the control command to the chip, inputting an identifier command to the chip through the data and command interface; after inputting the identifier command to the chip, inputting data content of bit form to the chip through the data and command interface, wherein the data content includes at least one of command type, address type and data type; after inputting the data content of bit form to the chip, recognizing the type of the data content according to the identifier command; testing the chip according to the data content and the recognized type of the data content to obtain test results. The embodiment of the invention provides improved test efficiency.

The invention discloses a method for quickly detecting and replacing edge fragments of an image slice. The method comprises the following steps: S1, requesting image slice data of a plurality of grids in a screen range; S2, sorting the mSultiple stages of image slices in each grid according to a time sequence; S3, for each grid, taking a slice at the latest time, and judging whether the slice in each grid is a fragment; S4, if the slice in a certain grid is judged to be a complete slice, returning to the slice to fill the corresponding grid; and S5, if the slice in a certain grid is judged to be a fragment, marking and removing the slice, and repeating the step S3 on the next slice at the latest time in the same grid until the complete slice is returned. According to the method, which stage of image slice data is used in a certain grid is quickly determined with extremely low operation cost, fragment replacement is achieved, meanwhile, the operation burden of a server can be relieved, and the response speed is increased.

The invention provides a maternal fetal monitoring device and a detection probe thereof. The detection probe comprises a probe shell with a mounting space, and a uterine contraction pressure sensor, afront-end signal acquisition circuit and a main control circuit which are arranged in the mounting space, wherein the uterine contraction pressure sensor is electrically connected with the front-endsignal acquisition circuit and used for acquiring uterine contraction pressure signals, and the front-end signal acquisition circuit is electrically connected with the main control circuit; and an electrocardio-electrode is arranged outside the probe shell, is electrically connected to the front-end signal acquisition circuit inside the mounting space through a lead wire and is used for acquiringa maternal fetal electrocardiosignal. By means of the design, the main control circuit analyzes the collected signals and calculates the maternal heart rate, the fetal heart rate and the uterine contraction pressure value, so that monitoring of the maternal heart rate, the fetal heart rate and the uterine contraction pressure can be completed only through one detection probe, the burden of pregnant women during monitoring is relieved, and electrode plates cannot fall off or slide due to the pasting mode; and therefore, movement of the pregnant woman is not limited any more, and the monitoringexperience is greatly improved.

The present invention disclose a software definition network topology discovery method and system. This method includes: the controller calculates the minimum cover set of the switch of the network of the network, so that at least one switch on both ends of each link of the software definition network isIn the minimum cover set and minimize the number of switches covering the set; the switch detection in the minimum cover set detection of each unlocked link -to -end switch information and port information, and report the exploration link to the detection linkThe switch information and port information of the two ends to control the controller; the controller generates network topological information according to the switch information of the two ends of the link and port information.This method can realize software definition network topology discovery, reducing the processing overhead and network bandwidth consumption of software definition network topology discovery.

The invention discloses a link fault diagnosis method based on time delay. The link fault diagnosis method based on time delay comprises three stages of selection of a detection station, fault detection and fault positioning; time delay is adopted to judge link quality, detections are adopted to obtain link time delay, and a time delay standard of failing detections is given out; and a fault link is diagnosed by adopting an adaptive detection method, part of detections are selected to detect whether a fault is generated in a network, and then in the fault positioning stage, the detections are further selected to position the fault link. According to the link fault diagnosis method disclosed by the invention, the fault link can be accurately positioned, and less communication traffic is generated; and an experimental result shows that by the link fault diagnosis method disclosed by the invention, not only can the fault link be diagnosed, but also the number of the sent detections can be greatly reduced in the fault diagnosis process, and influence of the detections sent out in the fault diagnosis process on the network is reduced.

The invention provides a stimulated Raman hyperspectral combined detection device and method. The method comprises the steps: S1, generating two beams of pulse lasers with different frequencies, carrying out frequency coding on one beam of pulse laser, selecting laser signals with different preset frequencies, and selecting a single laser signal with a fixed frequency for the other beam of pulse laser; and S2, carrying out time synchronization and space synchronization on the laser signals with different preset frequencies and the laser signals with fixed frequencies, simultaneously focusing the signals on a test sample, and jointly exciting stimulated Raman spectrum signals of the test sample. The number of detection times required in the invention is far less than the number of spectrumchannels of the Raman spectrum so that a detection speed of the current stimulated Raman spectrum analysis technology in wide-spectrum and high-resolution spectrum analysis application can be greatlyimproved.