172 results about "Cycle detection" patented technology

The invention relates to a system and a method for realizing automatic network failure analysis based on SDN technology. The system comprises one SDN controller and multiple SDN switches. The SDN controller realizes real-time detection and cycle detection of each link in network topology, and monitors states of the SDN switches in real time and maintains the global network topology. The SDN controller comprises an OpenFlow module, an OpenFlow extension module, an event module, a topology module and a detection module. The detection module comprises a real-time detection module and a cycle detection module. With the system and the method, the whole network can be monitored, and network failure analysis is realized.

A system comprising a measurement device and a handheld device is disclosed, the system adapted to withstand, detect, record, and display heat cycle event counts. The measurement device comprises a sensor for measuring and a heat cycle detection unit. The heat cycle detection unit comprises a temperature or pressure responsive element, a detection module, data interface, and data memory. The handheld device comprises a screen, a button, a communication circuit, and a processing system. The communication circuit is configured to communicate with the measurement device and a computing device and the processing system is configured to receive non-measurement information from the measurement device, display the received information on the screen, and cycle the received information displayed on the screen based on an actuation of the button, wherein the handheld device is used to display a heat sterilization cycle count of the measurement device.

A system and a method to identify a conditional branch instruction having a program counter and a target address, and increment a loop count each time the program counter and the target address equal a stored program counter and a target address. The system and method additionally includes assignment of a start loop pointer and an end loop pointer, based on an offset, when the loop count is equal to a threshold value, and capturing instructions for a loop, as defined by the start loop pointer and the end loop pointer, in an instruction queue.

The invention relates to a joint spectrum detection method based on energy-cyclostationary characteristic for improving the detection probability and reducing the complexity as soon as possible at the same time. The invention utilizes the characteristics of energy detection and cyclostationary characteristic detection, and realizes spectrum joint detection in cognitive radio systems by utilizing two thresholds. In the invention, an energy detection method of the two thresholds is utilized for crude detection, if the energy is at both ends of the two thresholds, the energy of a signal to be detected is calculated, the energy obtained from the calculation is compared with the two predetermined thresholds, if the energy is no less than the high threshold, a primary user signal is determined to exist; if the energy is no more than the low threshold, the primary user signal is determined to not exist; and if the energy is between the two thresholds, the cyclostationary characteristic is utilized for detection, and the value of a specific cycle frequency is calculated and is compared with the cycle detection threshold, if the value is no less than the threshold, the primary user signal is determined to exist, and the primary user signal is determined to not exist if the value is no more than the threshold.

The invention provides a network control method of a dual-redundancy CAN bus, which comprises five major steps: step 1: switching on a system and carrying out node initialization; step 2: detecting the initialization of the system; step 3: carrying out normal work and cycle detection; step 4: carrying out treatment of abnormality during the operation of the system; and step 5: carrying out the treatment after switching over a main channel and a standby channel. The method fully utilizes a mature CAN device for constructing a dual-redundancy bus network, carries out error detection and specifies control authorities of different nodes through application software, realizes a network control strategy of distributed monitoring and centralized management, simultaneously provides a detailed fault detection method of the CAN bus system and carries out classification on different errors, thereby being easy to realize programming and having strong universality. The network control method improves the fault-tolerant capacity of the CAN bus system and fully utilizes the redundancy mechanism to ensure the reliability of the system; and the network control method has wide practical value and application prospect in the field of mechanical and electrical control.

The invention relates to a database high availability implementation method and a device. The method includes (S1) setting a heartbeat meter sub thread to judge whether update of a heartbeat meter of a primary library fails or not, setting a standby library sub thread to judge whether a standby library is available or not, setting a gateway sub thread to judge whether gateways where the primary library and the standby library are located are available or not, (S2) setting a primary thread to detect judge results of the heartbeat meter sub thread, the standby library sub thread and the gateway sub thread in a circulating mode, and proceeding the step (S3) if the judge results of the heartbeat meter sub thread, the standby library sub thread and the gateway sub thread are positive, and (S3) executing switching from the primary library to the standby library. According to the method and the device, whether the heartbeat meter is successfully updated serves as a standard to judge whether a database is available, whether the standby library is available ( whether the standby library delay meets requirements, whether the standby library can be visited, and the like) serves as a standard to judge whether the standby library can be used for switching, and the switch between the primary library and the standby library is effectively controlled through flexible configuration for switching conditions.

Methods and devices are provided for simultaneously amplifying a plurality of sample wells for a predetermined amount of amplification, detecting whether amplification has occurred in a first set of the wells, amplifying for an additional amount of amplification and detecting whether amplification has occurred in a second set of the wells. Methods are also provided for analyzing a target nucleic acid sequence using melt curves that were generated in a plurality of amplification cycles.

A method of operating a laundry treating appliance having a rotatable treating chamber for receiving laundry to be dried according to a predetermined cycle of operation and determining when the laundry is dry.

A PWM circuit includes a counter, a cycle register, a cycle detector, a pulse width register, a pulse width detector, an additional pulse width register, a voltage generator, a selector, and a voltage controller. The voltage controller controls the selector so as to add a first additional pulse at a first voltage to the end of a pulse width, based on a cycle detection signal outputted by the cycle detector, a pulse width detection signal outputted by the pulse width detector, and a set value indicating the first voltage of the first additional pulse outputted by the additional pulse register, thereby deciding a voltage outputted from the PWM circuit and a period in which the voltage is output.

A method and apparatus for loop detection for improved branch prediction accuracy. In one embodiment, the method may comprise executing a branch instruction, updating a plurality of event counts corresponding to the branch instruction in response to its executing, determining a loop behavior status corresponding to the branch instruction in response to the event count updating, and promoting the branch instruction to a loop branch prediction type in response to the determination of loop behavior status.

Cell-aware fault models for delay faults are created for library cells. Analog one-clock-cycle fault simulations are first performed on a transistor-level netlist of a cell to identify type one detectable defects and type two detectable defects in defects of interest. The type one detectable defects are detectable by one-clock-cycle testing and their fault models may be created based on results of the analog one-clock-cycle fault simulations. The type two detectable defects are defects for which two-cycle detection conditions may be calculated from corresponding results of the analog one-cycle fault simulations. Analog two-clock-cycle fault simulations are then performed for the rest defects in the defects of interest to determine type three detectable defects and their detection conditions. The created cell-aware fault models may be used to generate cell-aware test patterns.

The invention discloses a device of voice detection and evaluation based on a mobile terminal. The device of the voice detection and evaluation based on the mobile terminal comprises a voice detection and evaluation terminal, wherein the voice detection and evaluation terminal comprises a signal collection and data storage unit, a voice signal processing and evaluation unit and a data output unit. The mobile terminal is adopted by the voice detection and evaluation terminal. The signal collection and data storage unit comprises a voice signal collection module, a voice signal data storage module and a detection and evaluation result storage module. The voice signal processing and evaluation unit comprises a voice signal processing module, a voice signal cycle detection module, a feature parameter extraction module and a voice signal feature evaluation and analysis module. The data output unit comprises a voice signal output module, a voice signal waveform drawing module and a detection journal visiting module. The device and the method of the voice detection and evaluation based on the mobile terminal have the functions of the voice signal collection, process, analysis and evaluation. The device of the voice detection and evaluation based on the mobile terminal has the advantages of being convenient to carry, low in cost, insensitive in gender difference and the like.

The invention discloses a method for reducing an FBMC-OQAM system peak-to-average power ratio based on peak tracking feedback. The method comprises the following steps: 1) pre-grouping sub-carriers for carrying FBMC symbols, successively executing inverse Fourier transform and multi-phase filter modulation to real part and virtual part partitioning signals, to obtain a time domain sending signal; 2) circularly detecting the position point located by the maximum peak of the time domain signal, and executing the phase rotation to the data at the corresponding position point of the partitioning signal; 3) finding out a group of the optimal phase factor combination to multiply by the data at the selected position point, and enabling the sum to be minimum, namely reducing the peak at the position; and 4) using the data with the optimized phase to replace the original signal to generate new time domain signal. The method is capable of reducing the peak-to-average power ratio through a peak tracking feedback algorithm, enabling a power amplifier at the sending terminal to be positioned in the linear state, and improving the communication quality without the transmission signal distortion. Compared with the traditional method, the method has the lower computation complexity and the better effect of reducing the peak-to-average power ratio.

The invention discloses an all-digital compensation microwave radiometer, which comprises an antenna, a matched load, a microwave switch, a full-power radiometer, a digital control unit, a communication unit and a display unit. According to the cycle detection of the input voltage of the matched antenna and the antenna and the practical temperature of the matched load, the influence on the performance of the radiometer caused by the gain uncertainty of a radiometer system and local noise fluctuation is balanced out through the digital compensation operator of the digital control unit. The all-digital compensation microwave radiometer not only greatly increases sensitivity and long-term stability, but also has simple structure and small volume; moreover, the radiometer can work for a long time after initial calibration, thereby avoiding the inconvenience of cycle calibration on ground basis, vacuous basis and satellite basis and greatly increasing target observation time and scope.

The invention relates to a multi-objective optimization three-phase unbalanced switch control method comprising the steps that the corresponding three-phase current unbalance degree is calculated according to sampling current; after a three-phase unbalanced switch is accessed to a power grid to work, a controller cyclically detects the three-phase current value and the unbalance degree of each phase of current, and no operation is performed if the three-phase current is balanced until the next detection instruction; and if the unbalance degree of a certain phase of current exceeds the preset value, the transformer load condition is judged and then the three-phase unbalanced switch is judged; when the adjusting process of the three-phase unbalanced switch is switched on, the controller performs permutation and combination on all the states of all the switches, all the switch changeover schemes are traversed and the corresponding three-phase current unbalance degree of all the switch changeover schemes is stored so as to perform multi-objective optimization. The load condition can be periodically and actively monitored so that real-time monitoring can be realized, multiple practical problems about the switch fault condition and the switch service life can be solved, and the problems of high current phase commutation and frequent phase commutation of a certain switch can be avoided.

The invention relates to a cylindricity error interference measuring device and an adjusting method thereof. The device comprises an interferometer, a support, a six-dimensional adjusting rack, a CGH, a one-dimensional guiding rail platform, a measured piece, a four-dimensional adjusting mechanism, a five-dimensional adjusting mechanism and an electric control lifting platform. The interferometer and the one-dimensional guiding rail platform are installed on the support. The six-dimensional adjusting rack is installed on the one-dimensional guiding rail platform. The CGH is installed on the six-dimensional adjusting rack, so that the light-emitting axis of the interferometer passes through the CGH, and the distance between the CGH and the measured piece is adjusted. A measured piece adjusting mechanism is composed of the four-dimensional adjusting mechanism, the five-dimensional adjusting mechanism and the electric control lifting platform. The electric control lifting platform is arranged at the lower end of the measured piece adjusting mechanism. The axis line of the measured piece coincides with the axis line of a rotating platform on a five-dimensional adjusting platform by adjusting a four-dimensional adjusting platform, then the axis line of the rotating platform accurately coincides with the cylindrical focal line generated by the CGH by adjusting the five-dimensional adjusting platform, and complete cycle detection of the face type of the cylindrical measured piece is achieved through the rotating platform in cooperation with the lifting platform.

The invention provides a front side gait cycle detecting method based on video, which comprises the target profile capture of a pedestrian and the cycle detection of a front side gait. Firstly, a single-frame image is extracted from the video, and is treated by gray level transformation, and then an image without a human body is used as the original background image of the whole video; secondly, a human body target is extracted by adopting a background deduction method with a real-time updated background, and binarization treatment is carried out on an image sequence by a Kapur entropy threshold method; thirdly, the vacancy of the binarized image is filled up by mathematical morphology, a human silhouette is extracted and analyzed by single communication so as to centralize the human body, and all the sizes of the images are 64*64 pixels; finally, the extracted human body is detected, the redundant frames containing an incomplete human body are eliminated, and the number change of the pixels of a lower arm swinging area is used as the basis for judging the front side gait cycle according to the relation of the proportion of the limbs to a body height. The invention has significant effect on the detection of the front side gait cycle, and the amount of calculation is small, thereby saving a large amount of storage space so as to make real-time gait identification possible.

An method may include identifying loop information corresponding to a plurality of loop instructions. The loop instructions are stored into a queue. The loop instructions are replayed from the queue for execution. Loop iteration is counted based on the identified loop information. A determination of whether the last iteration of the loop is done. If the last iteration is not done, then continue replaying the loop instructions, until the last iteration is done.

A method for detecting change ¿C over of video scene includes setting number of current frame in current scene to be k if current frame is first frame of video series or the first frame of new scene as K = 1, calculating mean values of three components ( TC ) for current frame brightness and chrominance ( BAC ) and initializing mean values of TC for multiple image BAC to make i = i+ 1, fetching image data to calculate absolute value of mean value D ¿C value for TC of current frame BAC to last frame BAC, using two conditions of D is less than SUB is greater than Y is less than / SUB is greater than / mean y = D is less than SUB is greater than U is less than / SUB is greater than / mean U + D is less than SUB is greater than V is less than / SUB is greater than / mean Vis greater than or equal toM and D is less than SUB is greater than Y is less than /SUB is greater than + D is less than SUB is greater than U is less than / SUB is greater than + D is less than SUB is greater than Vis less than / SUB is greater than or equal toN to judge whether scene is changed ¿C over or not, changing parameter for cyclic detection.

The invention discloses a GPS (global position system)-based dangerous driving detection system which is implemented through setting an inspection time, and acquiring gravitational acceleration information, acceleration information and course information; verifying a vector of the forward direction, a vector of the vertical direction and a vector of a direction perpendicular to the direction of a car body, and creating a detecting coordinate axis; setting a unit detection time, a cycle detection time, and a sampling frequency and a detection trigger value of an acceleration sensor; averagely cutting data in the unit detection time into multiple parts of basic data; acquiring data of each sample point in each part of basic data, and acquiring an average value of the sample point data; acquiring a maximum basic datum in basic data in the unit detection time; setting an acceleration threshold duration threshold, a speed change threshold and a reaction time threshold; judging and feeding back the types of dangerous events. Through the way, the GPS-based dangerous driving detection system disclosed by the invention can detect and report the dangerous events in the process of driving accurately and timely, and therefore, the driving is safe and convenient.

A combustible gas monitoring data abnormal cause judgment method includes: step S1, starting; step S2, starting a sensor to continuously obtain a group of data by detection; step S3, checking each group of data; step S4, judging whether each group of data includes abnormal data or not, if yes, discarding the data and starting the step S5, and if not, determining as a cycle detection value and starting the step S8; step S5, starting complementary detection, and starting step S6; step S6, judging whether complementary detection times is within set times or not, if yes, returning to the step S2,and if no qualified data is detected in set times, starting the step S7; step S7, feeding back equipment abnormal signals; step S8, outputting the cycle detection value. The invention further discloses a combustible gas detector data processing device. Monitoring data inaccuracy caused by inaccuracy of acquired data is eliminated, and monitoring effects and early warning accuracy are improved.

The application discloses a detection circuit used for detecting voltages outputted by multi-path power supply modules, and aims to detect voltages outputted by multi-path power supply modules in thesame time; the detection circuit has a work mode and a debugging mode; under the work mode, the circuit can use a single chip to realize cycle detections on a multipath channel machine; under the debugging mode, the corresponding detection channel can be manually selected through a toggle switch, thus directly reading (without needing extra instruments) the specific value of the voltage outputtedby the power supply module corresponding to the selected detection channel. The detection circuit is easy to debug, and can reduce the workloads.