44 results about "Time mark" patented technology

The invention relates to the field of oral medical diagnosis, and discloses an intraoral image-based AI enhanced real-time occlusion detection system, which comprises a multi-source intraoral image acquisition module for acquiring dynamic oral image data through a high-definition oral endoscope and recording a three-dimensional structure of a tooth surface by combining a laser scanning device, meanwhile, force distribution of an occlusion contact point is collected through a pressure sensor array; the multi-source intraoral image acquisition module comprises a timestamp synchronization unit and is used for performing multi-source synchronization on an oral image frame sequence and occlusal force distribution data by utilizing a unified timestamp; through the multi-source in-port image acquisition module, synchronous acquisition of dynamic images, three-dimensional structure data and bite force distribution is realized, and time sequence consistency of the data is ensured through timestamp marking. Compared with a traditional single data source collection mode, the multi-source collection can comprehensively record dynamic characteristics in the occlusion process, rich and accurate input is provided for subsequent AI analysis, and data missing or collection deviation is avoided.

The invention relates to the technical field of product data management, in particular to a food package printing material batch traceable management method and system, and the method comprises the following steps: collecting the production time of each production batch, constructing time data which comprises year, month, day, hour, minute and second, and creating a time code based on the time data; the time code is combined with the data of the production batch. According to the method, the time data of each production batch, which is accurate to second, is collected, the unique time code is constructed, and the time code and the batch production data are closely combined, so that a traceable time stamp data packet is formed, accurate correspondence between production information and time is ensured, and more efficient information integration and storage management are realized. In the storage process, classification and indexing are carried out in combination with batch time marking data packets, a data retrieval mechanism capable of rapidly responding is established, the information positioning speed and accuracy are improved, and the efficiency and reliability of batch query and tracking are improved.

The invention provides a dynamic high-precision PTP (Precision Time Protocol) time synchronization system realized based on an FPGA (Field Programmable Gate Array), which comprises a master device and a slave device, and the master device and the slave device are connected through a PHY (Physical Layer) to carry out PTP time synchronization; the master device and the slave device have the same structure and comprise an FPGA and a voltage-controlled crystal oscillator; in the master device, the FPGA obtains the frequency difference and the phase difference between the master device and an externally input reference source, further adjusts the frequency of a voltage-controlled crystal oscillator, corrects a local time mark, and sends a PTP message to the slave device; and in the slave equipment, the FPGA obtains the frequency difference and the phase difference between the slave equipment and the master equipment based on the received PTP message, so that the frequency of the voltage-controlled crystal oscillator is adjusted, and the local time scale is corrected. According to the invention, low-cost and high-precision PTP time synchronization is realized.

The invention relates to the technical field of database data import, and provides a method, system and device for importing time sequence data into an openGauss database, and the method comprises the steps: reading original time sequence data through a worker thread, partitioning the original time sequence data according to a time mark and a label mark, and storing the partitioned original time sequence data into a corresponding skip list in a memory; reading the data in the skip list through a write thread, and writing the read data into a bulkload rows memory structure according to columns; and constructing corresponding metadata information according to the data in the bulkload rows memory structure through a write thread, and writing the data into a column storage file. According to the method, the system and the equipment for importing the time sequence data in the openGauss database, resources such as a CPU (Central Processing Unit) and a memory of an operating system can be fully utilized, the bottleneck of the system resources is reduced, the data importing efficiency is ensured, and the storage characteristic of the time sequence database is not lost.

The invention relates to the technical field of electric energy data acquisition, in particular to an electric energy data acquisition system, device and method, and the system comprises a time calibration module which is used for transmitting a test frame carrying a transmission time mark to an electric energy meter according to a standard time reference signal, capturing an arrival time mark of a return frame of the electric energy meter, and transmitting the arrival time mark to a data acquisition module; and calculating a transmission loop delay value between the sending time mark and the arrival time mark. In the invention, sequencing and locking are carried out among multiple channels according to a communication quality blocking threshold, a high-reliability redundant link is constructed for data transmission, a data cutoff risk caused by single network fluctuation is avoided, hardware state parameters such as response frame return duration and central processing unit temperature are combined, a two-way interaction mechanism is established with a cloud server, and the reliability of data transmission is improved. And firmware updating is triggered according to the remote instruction, so that automatic operation and maintenance and fault early warning of the equipment in the full life cycle are realized, and the maintenance cost of on-site manual troubleshooting and the system downtime are reduced.

The time mark-based three-coordinate scanning data synchronous sampling system comprises a three-coordinate measuring machine, a control system, a laser head, a laser head controller and a computer system, the control system and the laser head controller are provided with sampling timers, when scanning measurement is performed, the control system sends sampling pulses to lock the coordinate data of the three-coordinate measuring machine and the time data of the sampling timer of the control system, and simultaneously lock the measurement data of the laser head and the time data of the sampling timer of the laser head controller, the sampling data of the control system and the laser head controller received by the computer system is the coordinate data of the three-coordinate measuring machine, the time data of the control system timer and the measurement data of the laser head and the time data of the laser head controller timer, the computer system selects the data with consistent time data as the scanning measurement data.

Methods and systems for time marking of media items at a platform using machine-learning are provided herein. An indication of a identified media item is provided as input to a machine-learning model and one or more outputs of the machine-learning model is obtained. The one or more obtained outputs comprise time marks identifying each of the plurality of content segments of the media item. Each of the plurality of content segments is associated with a segment start indicator for a timeline of the media item. A resulting duration is determined of a combination of the plurality of content segments for which the time marks were obtained from the one or more of outputs of the machine-learning model. Responsive to determining that the resulting duration is less than the duration of the media item, one or more further inputs is provided to the machine learning model.

The application relates to the field of network security communication protocols, and discloses a local area network low-latency transmission method and system based on time slot allocation, which comprises the following steps: introducing a frame sending node with network security communication protocol processing capability into a local area network communication link, time marking data messages initiated by each node and pre-registering a sending window; introducing a local time stretching factor to differentially encode the occupation characteristics of different types of messages; interleaving a time slot deviation unit with a service priority for dynamic adjustment of adjacent time slot boundaries; coupling modeling of processing mutations caused by link instantaneous load fluctuation, key update trigger timing and authentication processes, and constructing a cross-time slot delay propagation relationship within a local transmission path; and according to the occupation density and offset convergence trend of various messages in a time slot cooperative scheduling view, online correcting time slot division granularity and scheduling trigger rhythm. The application has the advantage of improving time slot utilization precision.

The invention relates to a multi-event time-to-digital converter capable of expanding a measuring range, and the converter comprises a T trigger array which is used for coding an end signal according to the time sequence of a collection event, so as to enable the end signal to generate an edge change signal; the TDC delay chain is used for generating a time stamp of the edge change signal in each delay unit according to the edge change signal; the exclusive-OR gate module is used for carrying out logical judgment according to the time stamp of the edge change signal so as to determine the event distribution of the collected events; the D trigger array is used for latching the event distribution of the collected events in each coarse counting clock period and storing the event distribution into the corresponding storage unit; and the histogram statistics module is used for distributing a time difference between an end signal and a start signal of the acquisition event to each time interval range so as to generate a statistical histogram of event distribution of the acquisition events of the M coarse counting clock periods. According to the invention, the range of the multi-event time-to-digital converter can be greatly improved, and high time measurement precision can be maintained.

The present application relates to a kind of X-ray detector photon arrival time mark precision measurement system and method.The present application system includes: signal generator, pulse X-ray generator, X-ray detector to be measured, time mark photon counter and processing module deployed on host computer constitute;Wherein, the signal generator is used to generate pulse signal, and respectively give pulse X-ray generator and time mark photon counter;The pulse X-ray generator is used to generate X-ray photon according to pulse signal;The X-ray detector to be measured is used to accept X-ray photon, and X-ray photon is converted into electric pulse, and is output to time mark photon counter;The time mark photon counter is used to time mark when receiving electric pulse electric pulse, and obtain the time interval between receiving pulse signal and electric pulse;The processing module is used to process time interval and obtain the time mark precision of X-ray detector to be measured.

The invention discloses an error calculation method based on a pulse sequence with a time scale, and belongs to the technical field of electric power measurement testing. The standard time-frequency signal, a high-frequency standard pulse output by the standard electric energy meter and a detected pulse output by the detected electric energy meter are connected to an acquisition processor; the acquisition processor detects a jump edge of the detected pulse in real time based on a clock provided by the standard time frequency signal, and records moments corresponding to a rising edge and a falling edge of the detected pulse; counting the standard pulse in real time, and recording the current count value of the standard pulse at the corresponding moment; combining the moment information with the count value to form an original sampling sequence with a time mark; the calculation processor reads the stored original sampling sequence with the time scale, and calculates the power value, the error value, the waveform characteristic and the jitter index of the detected electric energy meter according to the edge moment of the detected pulse and the corresponding standard pulse count value; and according to the error distribution condition, the stable state of the verification system is monitored in real time, and an alarm is dynamically triggered.

The invention relates to a time synchronization method for measured data of a gravimeter, and aims to improve the time mark accuracy of the measured data. According to the method, the theoretical timing cycle and the actual timing cycle of a sampling timer are compared, the timing cycle number deviation is calculated, and distribution of sampling pulses is adjusted according to the timing cycle number deviation, so that the data time mark of measured data of the gravimeter is determined. Furthermore, by analyzing inertial navigation data and satellite navigation data, a data synchronization residual error is obtained, a data time mark is corrected according to the data synchronization residual error, and accurate time synchronization of measured data of the gravimeter is achieved.

The application discloses a kind of multimodal vibration perception methods for liquid-cooled data center, it is related to vibration monitoring technical field, including, the structural vibration signal of liquid-cooled data center computer room is collected, and continuous time series record and unified time mark processing are carried out, form structural vibration reference information;Based on structural liquid time series difference sequence and cabinet liquid time series difference sequence, the propagation direction of vibration in structure, liquid and cabinet is reversed and distinguished, and vibration propagation path characteristic sequence is formed;According to vibration propagation path characteristic sequence, identify vibration dominant source and vibration propagation path state, generate multimodal vibration perception report.The multi-source vibration information obtained by the intelligent sensor is organized under the unified time reference, so that the propagation order between structural vibration, liquid vibration and cabinet vibration has a clear time relationship, providing a reliable time sequence basis for vibration propagation path identification.

The utility model relates to a follow-up type containing tray device for regularly reserving inspection pipes, which comprises a tray, a plurality of pipe grooves are uniformly arranged on the tray, each pipe groove is correspondingly provided with a time mark, one side of the tray is hinged with a cover plate through a hinge, and the upper surface and the lower surface of the cover plate are provided with through grooves corresponding to the areas of the pipe grooves of the tray. Slide ways penetrate through the two side faces of the cover plate, blocking pieces penetrate through the slide ways, one ends of the blocking pieces are wound on the rolling shafts, the other ends of the blocking pieces are connected with a driving mechanism, and placing channels are formed in the blocking pieces and correspond to one of the pipe grooves. The driving mechanism is a rotating motor, the blocking piece is wound on a rotating shaft of the rotating motor, and the rotating motor and the rolling shaft are installed on the overturning table top. According to the utility model, the baffle plate capable of moving according to time is arranged, the position of the placing channel on the baffle plate is changed along with time, and the placing channel corresponds to one pipe groove at a required time point, so that an employee cannot place a pipe at wrong time, and the mistake-proof and fool-proof effects are achieved.

The invention discloses a control method and device for a high-precision multi-joint linkage mechanical arm, and relates to the technical field of robot control, and the control method comprises the following steps: in the control process of the multi-joint linkage mechanical arm, collecting multi-source feedback information, carrying out unified time marking, and executing same sampling rhythm alignment processing through the unified time marking, and forming an alignment time sequence as an input sequence of subsequent fluctuation comparison. According to the method, time alignment, feature extraction, jump positioning and interference window adjustment are carried out on multi-source feedback information, so that an angle sequence is kept continuous in a complex environment, and the motion stability and the tail end precision are improved. Meanwhile, by adjusting the participation proportion of feedback information and delaying high-risk information to enter the fusion rhythm, the jumping stage has the buffering capacity, angle changes are smoothed in a time dislocation mode, the mistaken shutdown risk is reduced, and the linkage operation reliability is enhanced.

The invention discloses a lot drawing algorithm and system based on distributed monitoring and real-time sequence analysis. According to the system, the drawing behaviors of all users of the whole system are monitored in a distributed mode, trigger information of drawing controls is sampled and collected, timestamp recording of a unified time scale is carried out, and a drawing result influenced by contribution of all the users is obtained through online real-time sequence analysis and processing. The system comprises a terminal lot drawing behavior data acquisition unit, a timestamp recording unit, a real-time sequence analysis unit and a lot drawing result transmission service unit. By analyzing and processing the lot drawing behaviors of the users of the whole system, more intelligent and fair lot drawing services can be provided, and the efficiency and fairness of the lot drawing process are improved. The issuing of the invention promotes the technical progress of Web related applications, and provides more efficient and fair drawing experience for users.

The invention relates to the technical field of electrical parameter measurement, and discloses a ring main unit multi-loop electrical parameter combined measurement and anomaly positioning method. The method is used for solving the problem that a unified time reference and channel-level synchronization mechanism is lacked in the collection process in a traditional method. The method comprises the following steps: firstly, by solidifying the configuration of a ring main unit loop and a sampling channel and generating a configuration verification identifier, establishing a main clock monotone increasing timing reference and consistently distributing a unified time mark number; a channel compensation gear is determined and solidified through calibration excitation, and a combined measurement frame with a data quality field is constructed and cached according to a time mark number in an operation period; after an event is triggered, according to an event starting point identifier and an event relative sequence number alignment frame segment, abnormal loop positioning information with an evidence range is output under consistency constraint and direction criteria, and cross-loop joint quantity stabilization and positioning result rechecking are achieved.

The utility model belongs to the technical field of new energy frequency response testing, and particularly relates to a signal transmitting device for frequency response testing. A signal sending device for frequency response testing comprises a main control module and a clock module, and further comprises a satellite signal receiving module, the satellite signal receiving module is used for receiving satellite time tick signals and sending the satellite time tick signals to the clock module, and the clock module provides unified time marks for the device through the received satellite time tick signals. And the main control module generates a signal required by the frequency response test based on the time scale provided by the clock module. According to the utility model, the satellite signal receiving module is additionally arranged on hardware, the satellite signal receiving module is used for receiving a satellite time synchronization signal to provide a time mark for the device, the time mark with a unified section is provided for data analysis during testing, and the test data analysis efficiency can be obviously improved. The technical problem that time synchronization information is difficult to obtain in the prior art is solved.

The application discloses a wind turbine vibration monitoring and fault diagnosis method, an edge computing system is additionally arranged between a detection module and a cloud server, the edge computing system collects detection signals in real time, and carries out pre-processing and fault diagnosis on the detection signals, so that the operation burden of the cloud server can be shared. After the edge computing system collects data, the edge computing system carries out screening and reporting, heartbeat uploading is carried out when there is no exception within a threshold, real-time reporting and local early warning are started when the threshold is exceeded, and the burden of the network is reduced. The edge computing system can make feedback nearby, and the business execution capacity is higher, local early warning is carried out in the first time when there is a threshold exceeding danger, and the cloud server is reported at the same time, so that the response time is reduced. The edge computing system adopts a high-speed data acquisition card and a high-precision clock, so that the continuity and synchronism of data acquisition are ensured; a time stamp technology is adopted, accurate time marks are added to each detection signal package, and the synchronism of data processing is ensured.

The invention relates to a physical layer Ethernet message receiving and sending time marking method and device. The device comprises a high-speed time reference module, an Ethernet interface driving module, a core control module and a message cache region, the high-speed time reference module tracks an external time source, calibrates a local time reference and can record a timestamp in a cache according to an external signal; the Ethernet interface driving module is used for driving the Ethernet interface circuit to be connected with the Ethernet and outputting a physical layer prompt signal to the high-speed time reference module at the moment of receiving and transmitting an Ethernet message; and the core control module controls the message cache region, completes Ethernet message receiving and transmitting work, and provides a message high-precision timestamp marking function and a service high-precision timing protocol for an Ethernet interface by combining the functions of the high-speed time reference module and the Ethernet interface driving module. According to the invention, the precision of providing the network time code time service by the timing equipment as the secondary time reference is greatly improved, and the universality is realized.

1. Name of the designed product: smart card (time mark). 2. Use of the designed product: transaction card for finance, social security, medical treatment, transportation, campus, ETC, etc. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo best indicating the design points: front view. 5. The designed product is a planar product, and other views are omitted.

The invention provides an intelligent test method based on an AFDX (avionics full duplex switched Ethernet) bus module, which belongs to the technical field of avionics network communication and comprises the following steps: automatically generating and inserting configurable frame counting parameters through a frame counting management module; generating a high-precision time scale based on a programmable clock source and resolution through a frame time scale management module; based on a BAG and GAP cooperation mechanism, cyclic transmission of data frames of multiple sub-ports under the same virtual link is realized. According to the testing method, a plurality of sub-port data frames can be sent in the same BAG period through a GAP mechanism, the bandwidth utilization rate is improved by 300%-400%, and compared with a traditional frame counting and time mark parameter manual configuration method, the accuracy of frame counting and time mark counting is improved, and errors caused by manual configuration are reduced.

The embodiment of the invention provides a time service method and device for an AUTBUS, and the method comprises the steps: in each time service period, a time service module transmits a time marking signal to a control node of each AUTBUS connected with the time service module, and the time marking signal comprises a PPS signal and a TOD signal; the control node records the local time of the change edge of the PPS signal as first time, and analyzes first absolute time from the TOD signal; and in the current time service period, the control node carries out time service on each terminal node at the current local second time according to the first absolute time, the first time delay and the first frame count, the first time delay is the delay from the first time to the second time, and the first frame count is the AUTBUS frame count corresponding to the second time on the AUTBUS. According to the embodiment of the invention, the control node of the AUTBUS obtains the absolute time according to the PPS signal and the TOD signal, time service is carried out on each terminal node of the AUTBUS in combination with the counting of the AUTBUS frames, and all nodes of the whole AUTBUS can obtain the high-precision absolute time.

The invention discloses a multi-source data time sequence synchronization method and system for magnetic drive rotor twin control, and the method comprises the steps: multi-source heterogeneous data collection and time mark injection: collecting multi-source heterogeneous data at a data collection end of a magnetic drive rotor control system, and injecting a time mark for each data packet; data transmission and delay calculation: transmitting the data packets with the time scales to a time sequence synchronization center, and calculating and recording the transmission delay of each data packet in real time to obtain a delay historical queue of each data source; in the time sequence synchronization center, delay prediction of a data packet and self-adaptive buffer alignment of data are carried out to obtain a synchronous data sequence with a unified time scale; distributing the synchronous data sequence with the unified time scale; the system is used for implementing the method. According to the method, the problem of data time sequence misalignment caused by transmission and processing delay uncertainty in a heterogeneous network environment is effectively solved, and microsecond-level high-precision synchronization is realized.

1. The name of the product with this design: tissue box (Time Mark Multifunctional Tissue Box). 2. Purpose of this design product: for tissue box. 3. The design key point of this appearance design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the key points of the design: 3D drawing of Design 1. 5. The bottom surface of this design product is not easily visible or can not be seen during use, so the top view of design 1‑2 is omitted. 6. Designate Design 1 as the base design.

The application provides a line fault rapid judgment method and system based on feature point extraction, relates to the technical field of power fault diagnosis, and receives a power line pulse signal detected by a Rohn coil and samples through a magneto-electric isolation unit; time synchronization marking is performed through a time service module; sampling data with time marking is stored in a double-queue buffer according to a shunt threshold and is processed in time to obtain feature point data; high-speed and low-speed double-channel feature extraction is performed on the feature point data and weighted fusion is performed to generate fault feature data; and the fault feature data is sent to a remote server for fault positioning analysis.

The invention discloses a pre-meter impedance determination method based on time synchronization, a meter box terminal is utilized, the meter box terminal comprises a high-level core and a basic core, and the method comprises the following steps: counting the RTC time difference of the high-level core and the basic core once every T0 time, and counting the system task time and the RTC time difference of the high-level core once, correcting user electricity meter time by using the first time difference and the second time difference; the high-level chip calculates voltage data of the meter box every T1 time and marks a time mark to obtain a meter box cache queue; the advanced core receives the user electric meter data pushed by the basic core once every T2 time and screens out the electric meter box voltage with the minimum time difference corresponding to the electric meter box for impedance calculation to obtain an impedance data set; and the high-level core performs filter point processing and mean value processing on the impedance data set to obtain impedance data. According to the method for determining the impedance in front of the meter based on time synchronization, the accuracy of the impedance in front of the meter can be effectively improved, and it is convenient to check which meter has line abnormity.

The invention relates to the technical field of gas flow monitoring, and discloses a micro-leakage judgment method based on a diaphragm gas meter, which comprises the following steps of: 1, if a pulse signal of a user is collected at the current moment, storing the current moment into a queue, and maintaining the moment in the queue in a time window; step 2, if the number of moments stored in the queue is within a first threshold range, marking a first minute in the time window as a micro-flow leakage moment; otherwise, entering the step 3; 3, according to the state change triggered by a rotating gear of the gas meter, whether the flow of the user is zero at the current moment is judged, and if yes, micro-flow leakage does not exist in the gas meter; if not, marking the first minute in the time window as the micro-flow leakage moment; and 4, repeatedly executing the steps 1-3, and judging that the user has a leakage risk when the number of the marked micro-flow leakage moments meets a set condition. The invention aims to balance the sensitivity and accuracy of micro-flow detection.

The application provides a high-precision software timing sending system time mark and data synchronization method. Under the condition that timing cannot be avoided and time intervals are close to the sending rule, a timing design strategy is used to take the relatively independent post-sending equipment in timing management as a base point, organize all measured data in the same communication cycle, and mark the method of the related time mark with the time mark of the central control equipment as a reference, so that the time mark and the data are completely synchronized.

The invention provides a second pulse time synchronization method of an optical fiber strapdown inertial navigation and GNSS integrated navigation system. The pulse per second time synchronization method of the optical fiber strapdown inertial navigation and GNSS integrated navigation system comprises the following steps: S1, signal monitoring and time sequence initialization: starting PPS signal monitoring by an FPGA depending on a 100MHz internal working clock, scanning signals by utilizing a double-edge trigger detection circuit, filtering burrs by combining a digital filtering window, detecting PPS signal period jitter and duty ratio conditions, and performing time sequence initialization; and if the period jitter exceeds + / -10% or the duty ratio is abnormal, automatically switching to an internal crystal oscillator time keeping mode. According to the second pulse time synchronization method of the optical fiber strapdown inertial navigation and GNSS integrated navigation system, the problem that the period of GNSS information with a whole second time scale sent by a satellite receiver is irregular or does not exist for a long time can be avoided, the fixity of the integrated navigation period is ensured, GNSS data is extrapolated and fitted to an inertial navigation data time point, and the precision of the integrated navigation system is improved. The time synchronization method of two kinds of sensor data is realized.