21 results about "Time mark" patented technology

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.

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 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 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 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 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 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.

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.

The application discloses a method for quickly selecting CAF-intolerant holes, and comprises the following steps: obtaining the minimum value of CAF tolerance of a PCB plate; determining and inputting a first CAF threshold value by using Genesis software; comparing the distance between two holes in each group of holes in the drilling layer of the PCB plate by using the Genesis software, and performing one-time filtering; performing second-time filtering on the first-time marked holes, automatically filtering out the holes in each group of holes if the holes are in the same network, reserving the holes not in the same network and performing second-time marking to remember the positions and sizes of the holes; and copying the second-time marked holes to a new layer, and the positions and sizes of the holes can meet the Gerber data of a customer. The application has the beneficial effects that the efficiency is improved to more than 98%, and the misoperation in the manual exclusion process is avoided, and the correctness is ensured to 100%.

The utility model relates to a use time prompt identification type emulsion bottle which is designed for solving the technical problem that in order to facilitate day and night package distinguishing use or time point distinguishing use of existing similar products, a bottle body, a bottle cap or other components are provided with prompt identifications such as time and the like, and the number of emulsion bottles is small. The key points are as follows: at least one side plane of a bottle body or a bottle cap of the emulsion bottle is provided with a clock mark and / or a time mark for prompting use time, at least one side plane of the bottle body or the bottle cap is provided with pattern recognition for prompting male and female differential use or day and night differential use, and the pattern recognition is a face recognition pattern or a gender recognition pattern. The bottle body and the bottle cap are correspondingly square or oval, and when the pump head assembly is used when the bottle cap is opened, a cap opening of the bottle cap is buckled and fixed to a bottle cap groove in the outer diameter of the bottom of the bottle body. The corresponding patterns and marks are integrally formed with the component through injection molding or printed and packaged on the outer diameter of the component; therefore, different emulsion bottles for men and women and in the morning and evening can be conveniently prompted and used.

The invention relates to a conference summary generation method and device and electronic equipment, and the method comprises the steps: generating a first series of time stamps for a media stream of a conference in a conference process; monitoring an operation event using the document on the conference, and generating a second series of time stamps for the operation event; generating conference summary content based on the media stream with the first series of time stamps; in the conference summary content, an interaction control is configured for at least one content unit, and the interaction control is associated with at least one operation event and at least carries time stamp information of the associated operation event. Therefore, association among the conference summary, the media record and the document operation can be realized, so that the problems of low efficiency and difficulty in positioning of conference information backtracking in a traditional mode are thoroughly solved, and the backtracking efficiency and matching accuracy of conference related information are remarkably improved.

The invention belongs to the technical field of data transmission, and relates to a data processing method and system for a time mark instruction. The processing method comprises the steps that an instruction sending end receives a time mark instruction, adds time marks when batch conditions are met, combines the time marks into data blocks and sends the data blocks to an instruction receiving end; and the instruction receiving end creates archiving areas in different time ranges based on a preset time fragmentation rule, and archives the time mark instruction to the corresponding area according to the time mark after receiving the data block. According to the scheme, random small data blocks are converted into sequential additional writing, and the writing performance is high; the data in a certain time period can be queried without scanning all histories, so that quick positioning can be realized, and the query efficiency is high; and the deployment complexity is low, a database does not need to be installed, configured and maintained, the resource overhead is small, the framework toughness is high, and the method is suitable for edge computing, embedded and other resource-constrained environments.

The utility model relates to a signature with time mark and a signature pen, which comprise a tubular shell and a penetration seal body arranged at the upper end of the shell, the end face of one end of the penetration seal body facing the outside of the shell is provided with a rubbing surface, and the rubbing surface comprises a name marking area located in the middle and a time marking area surrounding the name marking area. A name pattern is carved in the name marking area, and a time coding pattern is carved in the time marking area; the shell is sleeved with a rotating sleeve, a blocking piece is arranged at the upper end of the rotating sleeve, one end of the blocking piece is connected with the rotating sleeve, and the other end of the blocking piece extends inwards to cover the time marking area. According to the technical scheme, the rotating sleeve is adjusted to drive the blocking piece to move, different positions of the time marking area are shielded, missing is formed on a rubbing pattern, the signature falling time is marked at the missing position, the structure is simple, and operation is convenient.