193 results about "Value of time" patented technology

A method for measuring time interval with two stage cascade delay line includes measuring numbers of clock leading edge in time interval to be measured i e cycle number of clock, measuring two time intervals not being complete cycle of front and back time intervals to be measured, sending those less than resolution of first stage relay line to the second stage for further subdivision, calculating out value of time interval to be measured by utilizing measured results. The measuring device is composed of only delay unit and D trigger for both delay lines.

The invention relates to a multi-parameter time-varying robot spraying method which comprises the following steps: firstly, establishing a free-form surface multivariable spraying model which uses flow of a spraying gun, a spraying distance and a spraying speed as model independent variables; then discretizing an original spraying path into a plurality of sections of minute sub paths, distributing initial values of time-varying spraying process parameters to each sub path and on the basis of the established multivariable spraying model, predicting distribution of an initial coating thickness; next, on the basis of a prediction result on distribution of the coating thickness, carrying out combined optimization on the time-varying process parameters to obtain the optimal process parameters on each section of sub path and finally, obtaining a multi-parameter time-varying spraying path of a surface to be sprayed. According to the method disclosed by the invention, various process parameters are used as variables; by the multivariable spraying model and a free-form surface coating thickness predicting method, the optimal process parameters on the sub paths of the discretized spraying path are obtained; dynamic optimization of the process parameters is implemented; the multi-parameter time-varying robot spraying method has the important effect of improving spraying operation efficiency, quality and safety of a robot.

The present invention discloses a method for positioning UE, wherein the method comprises the following steps: measuring the angle-of-arrival AOA of UE signal and time delay of UE signal to the base station for a plurality of times; calculating the plurality of AOAs obtained by measuring for obtaining the intermediate value of AOA; calculating the plurality of time delays obtained by measuring for obtaining the intermediate value of time delay; estimating the non-perpendicular factor of environment of UE; and computing the position of UE according to the intermediate value of AOA, the intermediate value of time delay, the non-perpendicular factor and the position information of base station comprising the UE. The estimated distance is modified when the distance between UE and base station is estimated in the invention, namely the time delay of UE signal to the base station is modified thereby reducing the time delay of UE signal to the base station and the deviation to the real value. When the UE is in the non-perpendicular environment, the technical plan provided by the invention can effectively increase the positioning precision to UE. The invention also discloses a device for positioning UE.

A rotation angle sensing device calculates an average value of calculation values of time necessary for rotation of each one of sections provided by equally dividing one rotation of a crankshaft. The device calculates an average value of the average values of the entire sections to calculate an entire section average value. The device calculates ratios of the average values of the respective sections to the entire section average value. The device eliminates an influence of rotation fluctuation of the crankshaft from the ratios by using reference ratios, which are calculated as ratios of the average values of the respective sections to the entire section average value in the case where there is no structural error. Thus, the device calculates learning values for compensating for the structural error.

The invention relates to software for expressing music with images. The software has the functions of obtaining the frequency and amplitude of music through waveform data information of the music, obtaining the representation frequency and amplitude in each small period of time, and extracting images, color parameters, display scales and values of time periods according to the representation frequency and amplitude to generate corresponding images for real-time display. The theme, the rhythm, the tone, the volume and the like of the music are expressed through the changes of shapes, colors, sizes and display speeds of the corresponding images, and then the artistic conception, the connotation and the emotion of the music are expressed, so that people, especially the deaf, can experience the charm of the music by watching the changes of the images. The software can be used for various music play systems with a display function, such as a computer, a smart mobile phone, an IPAD and an MP4. The software can form a music player independently and can also be embedded in other music play software for use.

The embodiment of the invention discloses a method and a device for denoising a video image. The method and the device relate to image processing, remove noise of the image to a greater degree, and effectively avoid an image tail phenomenon of a moving region. The concrete scheme comprises the following steps: taking a current processing pixel point as a center, and carrying out intra-frame filtering on all pixel points within an N*N range in a current processing frame to obtain a second pixel block; taking a first processing pixel point as a center, and carrying out intra-frame filtering on all pixel points within an N*N range in a reference frame to obtain a fourth pixel block; acquiring a weighted value of time-domain filtering of the current processing pixel point according to the second pixel block and the fourth pixel block; acquiring a time-domain filtering component of the current processing pixel point according to the weighted value; carrying out intra-frame filtering on the current processing pixel point to obtain a spatial filtering component; and updating a gray value of the current processing pixel point according to the time-domain filtering component, the spatial filtering component and the weighted value. The method and the device are applied in a video image denoising process.

A method for arbitrating a bus grant among a plurality of master devices for access to a shared bus is disclosed. The method includes the steps of starting to accumulatively count time in response to a data transfer request signal outputted by one of the master devices for requesting a data transfer, and re-estimating a bus-utility condition for the one of the master devices to access to the shared bus when a preset threshold value of time is counted up. In addition, an arbiter for a bus grant among a plurality of master devices for access to a shared bus is disclosed. The arbiter is characterized by including a plurality of timer devices in communication with the plurality of master devices, respectively.

The invention discloses an SOE (Sequence of Event) time synchronization control method which is applied to an SOE time synchronization control system. Each controller corresponds to one control station, the controller of one control station is selected in advance as a master controller for time setting, the controllers of the remaining control stations are slave controllers, and the master controller and the slave controllers are connected through hard wiring. The method comprises the following steps: the master controller and the slave controllers of which the initial value of time is preset carry out time synchronization through hard wiring; and the master controller and the slave controllers carry out time synchronization for corresponding SOE modules to realize time synchronization of the SOE modules between the control stations and within the control stations. As the master controller and the slave controllers carry out time synchronization through hard wiring, the precision of time synchronization of the controllers between the control stations is improved (namely, time synchronization of the SOE modules between the control stations and within the control stations is realized), the cost is low, and the balancing between cost and precision is well achieved. The invention further discloses an SOE time synchronization control system.

The invention discloses an induction motor bearing fault diagnosis system and diagnosis method based on wavelet-spectral kurtosis. The induction motor bearing fault diagnosis system based on the wavelet-spectral kurtosis comprises a wavelet-spectral kurtosis analysis module, a time domain parameter statistical analysis module, an FFT analysis module, a Hilbert envelope demodulation analysis module, a spectral kurtosis analysis module, and the like; the wavelet-spectral kurtosis analysis module includes two data preprocessing methods of wavelet and wavelet packet, which can realize the identification and feature extraction of multiple faults in a motor bearing coupled fault vibration signal; the time domain parameter statistical analysis module monitors whether the motor bearing is abnormalor not by calculating kurtosis values of time domain sensitive parameters; and a spectrum analysis module and the Hilbert envelope demodulation analysis module mainly determine the feature extractionof the single bearing fault of the motor. The induction motor bearing fault diagnosis system based on the wavelet-spectral kurtosis realizes the integrated design of the induction motor bearing faultdiagnosis method, and can quickly and effectively process and analyze the single and composite fault signals of the motor bearing and obtain accurate diagnosis results.

The invention relates to the field of a radio communication system, particularly to a synchronous estimating method of an OFDM system. The method comprises the steps of: reconfiguring transmitted frequency domain data according to bit sequences with correct coding and received specific channel to response obtained frequency domain channel related to the frequency domain data; counting synchronousestimating value of time and/or frequency based on the frequency domain channel response, wherein the specific channel is the channel in which the transmitting bit sequence is unchanged in the updating cycle and the terminal can determine the time following updating cycle arrived. The invention also provides a synchronous estimating device of an OFDM system. In the invention, the transmitted frequency domain data produced by reconfiguration with information unchanged is stored in the terminal; the synchronous estimating value is estimated on real time only; the complexity and counting delay in real-time operating can be reduced; the synchronous estimating value in the OFDM system is more precise; the accuracy on synchronization is raised; the accessing reliability of the terminal is improved; and the performance of the terminal to receive the data is raised.

The invention belongs to the field of gas stoves and particularly discloses an intelligent gas stove. The intelligent gas stove comprises a burner, an electric control gas valve, a temperature sensor, a controller and a cooking program, wherein the electric control gas valve is arranged in an air inlet pipeline of the burner and used for controlling the fire power of the burner; the temperature sensor is assembled onto the gas stove and used for detecting the temperature of the bottom of a pan; the cooking program is configured to have the set value of time-related pan temperature and time. When the gas stove is used for cooking food, the controller obtains the cooking program corresponding to the cooked food, in the cooking process, the controller controls the electric control gas valve to adjust the fire power of the burner according to the set value and the measurement value of the pan temperature in the cooking program, and the measurement value of the pan temperature is made to reach the set value in the cooking program till the cooking program is completed. The gas stove is suitable for automatically making soup, rice, rice porridge and pies, and in the cooking process, the gas stove can cook food materials automatically without user participation.

The invention discloses a multichannel human-computer interaction method based on voice and gestures, comprising the following steps of: extracting voice referent constraint information from voice information and extracting gesture referent constraint information from gesture information, wherein the gesture referent constraint information comprises a statistical value of distance from any point in a referring point region limited by the current referring point gesture to a referring center of the referring point gesture and the statistical value of time maintained by the referring point gesture; when the gesture referent constraint information is analyzed, acquiring the statistical value of the distance and the statistical value of the time maintained by the referring point gesture so as to lower the fuzziness of a referring point in three-dimensional interaction; and in the referent determining process, dividing a model object in a virtual environment into four types, and comparing the referent with a certain type of model object according to the possibility of the referent appearing in a certain type so as to be beneficial to the reduction of a finding range of the referent and the influence of the fuzziness of the referring point.

The invention discloses a bus position notifying and monitoring system based on radio frequency identification (RFID) and an implementation method thereof, relating to an implementation method of a bus position notifying and monitoring system based on an RFID technology under an IOT (Internet of Things) environment, and implementation of software and hardware of the system. The software and the hardware are organically combined to form the bus position notifying and monitoring system based on RFID under an IOT architecture. The bus position notifying and monitoring system based on RFID is composed of an active RFID tag of a bus, an intelligent terminal of a station, starting station and terminal station management terminal software, an Internet short message application server and a data server. The implementation method comprises the following steps: designing a system structure; designing and achieving a radio frequency tag; designing and achieving the hardware of the intelligent terminal of the station; designing the platform software of the intelligent terminal of the station; designing the application program of the intelligent terminal of the station; deploying the data server; deploying the Internet short message application server; designing the management terminal software; deploying the intelligent terminal of the station; and obtaining the empirical value of time when the bus arrives at the station.

An electronic apparatus (1) for training an animal is supported against the animal's skin, and includes stimulus electrodes (5) for electrically contacting the skin. A controller including output terminals producing aversive stimulus control signals, a first switch (Q4) coupled to a winding to produce therein a burst of first current pulses in response to a first signal produced by the controller (33) and a second switch (Q2) coupled to the first switch (Q4) operative to synchronously shunt predetermined trailing portions of the first current pulses away from the winding in response to a second signal produced by the controller to reduce the amount of energy delivered to the winding by the switching transistor (Q4) without substantially changing a peak value of a flyback voltage across the winding. The controller sets various values of time intervals during which portions of the first current pulses are shunted away from the winding in order to set various corresponding intensities of aversive stimulus.

The invention discloses a time difference measuring method for communication signals with frequency shift and belongs to the field of passive positioning of radiation sources. According to the characteristic that sequence of autocorrelation function ratios of received signals at two different positions is a single-harmonic function of frequency shift parameters, the two-dimensional parameter estimation problem of the frequency shift and time difference is changed into two one-dimensional parameter estimation problem. The time difference measuring method for communication signals with frequency shift includes determining baseband signals generated after digital down conversion of the received signals at the two different positions and respective autocorrelation functions of the baseband signals; obtaining initial frequency shift estimation value through Fourier conversion by the autocorrelation function ratios, and obtaining accurate estimation values by Chirp-Z conversion; determining frequency shift compensation to a second channel of baseband signals; and determining cross-correlation functions of a first channel of signals and a second channel of signals, looking for the maximum value to obtain initial time difference estimation value, and obtaining accurate estimation value of time difference to the cross-correlation functions by Chirp-Z conversion. The time difference measuring method can accurately quickly measure time difference for the communication signals with frequency shift and is widely applied to a signal passive positioning system of communication radiation sources.

A time shift circuit for changing a delay timing of a portion of a test pattern for testing a semiconductor device. The time shift circuit includes a multiplexer for selectively producing delay value data indicating a value of time shift in response to a shift command signal, a vernier delay unit for producing timing vernier data based on the delay value data selected by the multiplexer, and a timing generator for generating a timing edge for the specific portion of the test pattern based on the timing vernier data from the vernier delay unit. The shift command signal sets either a normal mode where predetermined delay value data is selected by the multiplexer or a time shift mode where delay value data for shifting the timing edge in real time is selected by the multiplexer.

The invention discloses a saturation flow rate calculating method for an urban road intersection. The method includes collecting traffic data of the urban road intersection; performing pre-treatment on the traffic data and storing result data obtained through the pre-treatment; performing real time calculation according to a Grubbs algorithm and storing average time headway of the urban road intersection in single cycle; according to a K-means clustering algorithm, performing clustering analysis on the average time headway of the urban road intersection in single cycle in identical weather conditions and acquiring a clustering analysis result; calculating the mean value of time headway in a saturation condition and acquiring the saturation flow rate of the urban road intersection in different weather conditions. The method provided by the invention improves precision of the saturation flow rate of the urban road intersection in different weather conditions.

The present invention discloses a method and a device for capturing frequency deviation. The method is applied for the 3rd generation partnership project 3GPP Long Term Evolution 3GPP LTE system and comprises the following steps: executing time synchronization to the received signal sequence for confirming the position of synchronizing signal; obtaining the master synchronizing signal and auxiliary synchronizing signal of synchronizing signal in frequency domain; respectively executing channel estimation with the master synchronizing signal and auxiliary synchronizing signal for respectively obtaining the estimated values of time domain channel response at the positions of master synchronizing signal and auxiliary synchronizing signal; and calculating the frequency deviation with the phase difference between the estimated values of time domain channel response at the positions of master synchronizing signal and auxiliary synchronizing signal. The method and the device according to the invention can greatly increase the precision of prior frequency deviation capturing for satisfying the frequency deviation estimation range of frequency deviation tracking period thereby effectively increasing the demodulation performance of link circuit.

A rotation angle sensing device calculates an average value of calculation values of time necessary for rotation of each one of sections provided by equally dividing one rotation of a crankshaft. The device calculates an average value of the average values of the entire sections to calculate an entire section average value. The device calculates ratios of the average values of the respective sections to the entire section average value. The device eliminates an influence of rotation fluctuation of the crankshaft from the ratios by using reference ratios, which are calculated as ratios of the average values of the respective sections to the entire section average value in the case where there is no structural error. Thus, the device calculates learning values for compensating for the structural error.

The invention relates to a data format converting method which accords with the processing requirement of broadcast typed automatic relative monitoring datagram. The invention comprises that the ADS-B 1090 datagram is read. The position datum of a global positioning system are obtained by a computer loading selecting typed machine loading responder, the positioning datum are converted to the values of time label data item of the global positioning system in the CHN21 format. The data items which are relative with the speed of an aerocraft, the mark of the aerocraft and the position of the aerocraft in the ADS-B 1090 datagram are taken out, and the data items are converted into data items in the CHN21 format. The processing for the ADS-B 1090 datagram at a regulating ATC workstation is realized by using the method in which the ADS-B 1090 datagram is converted into the datum of CHN21 format. The accurate time of the position datum of the global positioning system received by a plane is obtained through the datagram.

A state diagnosing method diagnoses a state of an operation of the diagnosis target based on waveform data. A waveform representing values of time-series data, the time axis of which is configured to set a start time of an operation of the diagnosis target or a changing time of an operation of the diagnosis target as an origin, is obtained as a target waveform. A similarity between a reference waveform representing a normal state or an abnormal state of the diagnosis target and the target waveform is calculated. A state of the diagnosis target is determined based on the similarity.

The embodiment of the invention provides a predistortion feedback method, an apparatus and a system, relating to the communication field, which reduces bandwidth of an AD converter in a predistorter and further reduces cost of the predistortion technology. The predistortion feedback method of the embodiment comprises: acquiring original signals from a base band; adopting preset strategy, acquiring values of time delay and complex gain demanded for processing the original signals; according to the values of time delay and complex gain, performing time delay and complex gain on the original signals; converting the original signals through time delay and complex gain into the simulation signals; substracting the feedback signals through down-conversion from the simulation signals to obtain the error signals; transmitting the values of the time delay and the complex gain to the predistorter, transmitting the error signals to the AD converter in the predistorter, to cause the predistorter to generate the predistortion signals according to the values of the time delay and the complex gain.

The invention belongs to the field of cookers and particularly discloses an intelligent gas integrated cooker system. The intelligent gas integrated cooker system comprises a cooker hood and a gas stove; a hood controller and a fan are arranged in the cooker hood; the gas stove is provided with a burner, a stove controller, a temperature sensor, spark electrodes and an electric control gas valve; the electric control gas valve is arranged in an admission pipe of the burner. The cooking program is configured with a set value of time associated pan temperature; when food is cooked, the cooking program is acquired by the stove controller, the stove controller operates open of the cooker hood and ignition of the gas stove, the electric control gas valve is driven to adjust size of fire of the burner on the basis of the set value and a measured value of the pan temperature in the cooking program to enable the measured value of the pan temperature to reach the set value in the cooking program till the cooking program is well executed, and finally the gas stove is operated in firing off and closing the stove hood. The integrated gas cooker system is suitable for automatic soup cooking, rice cooking, porridge cooking and pancake baking, user participation is not needed during cooking, and food materials are automatically cooked through the integrated cooker system.

The invention discloses the estimation of the arrival angle of a narrowband frequency modulation signal based on time frequency analysis during data loss, and overcomes a technical difficulty that the estimation of an arrival angle is not accurate because of data loss. The implementation process of the estimation comprises the steps: obtaining the time frequency distribution of the narrowband frequency modulation signal during data loss; reducing cross terms and inhibition-type noise through a multi-sensor adaptive optimal core function; obtaining another expression of an instantaneous autocorrelation function; carrying out the building of a compressed sensing model, and obtaining the time frequency distribution of a core function; and obtaining the estimation value of the arrival angle of the narrowband frequency modulation signal based on the time frequency analysis during data loss through employing an STF-MUSIC algorithm. The method reduces the cross terms and the inhibition-type noise, enables the average value of time frequency distribution to be more stable, and obtains a higher-resolution estimated arrival angle. The invention provides the more accurate method for estimating the arrival angle of the narrowband frequency modulation signal based on time frequency analysis during data loss, and the method can be widely used in the fields of radar, sonar, communication and biomedicine.