58results about How to "Guaranteed time consistency" patented technology

The invention discloses a combined lightning monitoring and forecasting system. A lightning alarming instrument is arranged at the right upper end of an L bracket and toward the sky; an atmospheric electric field instrument is arranged at the tail end of the L bracket and toward the ground; transmission terminals of the two instruments are connected with a signal acquisition and processing device which has the following structure that: the atmospheric electric field instrument comprises two paths of output terminals, one path is that an electric field signal of the electric field instrument is sequentially connected in series with a band-pass filter, a phase regulating circuit, an electric field signal amplifier and an isolating circuit, while the other path is that a synchronous signal of the electric field instrument is connected in series with a synchronous signal amplifier, an integrator, an adjustable comparator and a phase inverter; both the two paths of the output terminals are connected with a synchronous detector which is connected with a low-pass filter, a regulating circuit, an A/D converter and a display; the regulating circuit is connected with a window comparator, a low-frequency signal generator, an audio signal generator and acoustic and optical alarm equipment; a signal processor of a global positioning system (GPS) is connected with a GPS time display and a central processing unit respectively; and the lightning alarming instrument and the A/D converter are connected with the central processing unit respectively.

A dual-fluid nozzle atomizing experiment device adapted to various atomizing media comprises a compressed air system, a water vapor system, a mixing system, a material liquid system and a circuit and control system for adjusting all control mechanisms. Ejection medium flow output by a compressed air and water vapor mixing system and material liquid output by the material liquid system are connected into an air channel inlet and a liquid channel inlet of a dual-fluid nozzle through pipes respectively. According to the atomizing experiment device, compressed air and water vapor mixed in any proportion can be selected as ejection media to be adapted to different types of dual-fluid nozzles. Multiple parameters of temperature, pressure and flow of the ejection media and the material liquid are adjusted respectively, the adjustment range is wide, and the spray quality and the material liquid applying proportion can be effectively controlled; the device is adapted to various atomizing media and experiment parameters, an experiment platform is provided for detecting and evaluating the atomizing effect for enterprises, and the purposes that technological parameters of the ejection media and the material liquid are controlled effectively, the spraying performance and stability are improved, and the flavoring and charging technological quality of tobacco is improved are achieved.

The invention provides a dynamic texture synthesis method based on the double-identification flow convolutional network. The method mainly comprises steps of design of an apparent flow in a texture model, design of a dynamic flow in the texture model, new texture generation, dynamic texture synthesis and texture style conversion. The method is characterized in that target identification and optical flow prediction are accomplished based on the pre-training convolutional network (ConvNet), after given dynamic state texture input, each appearance of input textures is packaged according to filter data responded by a target identification convolutional network, modeling of a dynamic state of the input textures is carried out according to filter data responded by an optical flow convolutional network. For generating new textures, optimization of a noise input sequence is required to match characteristics of each identification flow in the input textures, and appearance of one texture and a dynamic state of another texture are combined to generate a brand new dynamic texture. The method is advantaged in that a high quality sample matched with pixel-by-pixel appearance and time-varying conditions of the input textures can be generated.

The embodiment of the invention provides a processing method, server and system for a distributed timestamp. The processing method includes the steps that when a timestamp is signed and issued, a file summary matched with a file identification is sent to an opposite terminal server; the opposite terminal server obtains a first Hash timestamp; when the timestamp is identified, a to-be-verified file is processed, a second Hash timestamp is obtained, the second Hash timestamp is encrypted to obtain a second signature, and the second signature matched with the to-be-verified file is sent to the opposite terminal server; the opposite terminal server decodes and obtains the second Hash timestamp, and when the first Hash timestamp and the second Hash timestamp are same, verification is passed. By means of the processing method, the user requirements with the huge number can be met, the response efficiency of the system is improved through concurrent processing, and the processing method has the good expansibility; the time consistency of the distributed server is guaranteed through offset correction.

The invention provides a depth map processing method and a depth map processing device. The method comprises the steps: determining a measurement error according to a motion parameter during the collection of a first depth image frame; determining a depth difference value between adjacent image frames; determining credible pixels and non-credible pixels in the first depth image frame according tothe depth difference value and the measurement error, and determining a first smoothing factor corresponding to the credible pixels and a second smoothing factor corresponding to the non-credible pixels; and filtering the depth value corresponding to the credible pixel according to the first smoothing factor, and filtering the depth value corresponding to the non-credible pixel according to the second smoothing factor. Therefore, the measurement error corresponding to the depth value is adaptively determined based on the time dimension. The credible pixel and the non-credible pixel in the depth map are determined based on the measurement error, so that different error smoothing processing can be performed on different pixels. The time consistency of the depth value error after image framefiltering is ensured.

The invention provides a depth map processing method and device. The method comprises the following steps: obtaining a first depth image frame and a second depth image frame adjacent to the first depth image frame, determining a first content value of each first pixel and a second content value of a corresponding second pixel, and obtaining a content difference between the first content value andthe second content value, determining a credible pixel in the first depth image frame according to the content difference, determining a smoothing factor corresponding to the credible pixel, and performing filtering processing on the depth value of the credible pixel according to the smoothing factor and the depth value of the pixel corresponding to the credible pixel in the second depth image frame. Therefore, time-based consistency filtering is carried out on the depth value in the depth slow change area based on the change condition of the depth value. The depth value of the depth smooth area in the time dimension is smoother effectively, and the original high dynamic property of the depth fast change area is kept.

The embodiment of the invention discloses a method for positioning an address of a snapshot disk. The method comprises the steps: judging whether a queried snapshot record exists in a snapshot version table in a data disk or not when a request for looking up an address of the snapshot disk is detected; further judging whether a snapshot version number exists in the snapshot version table or not when the snapshot record exists in the snapshot version table; determining the address of the snapshot disk according to a snapshot meta address and snapshot version number corresponding address map table in the snapshot version table when the snapshot version number exists in the snapshot version table; determining a second snapshot version number meeting preset conditions in the snapshot version table when the condition that the snapshot version number does not exist in the snapshot version table is judged, and determining the address of the snapshot disk according to a snapshot meta address and second snapshot version number corresponding address map table. The efficiency of snapshot disk positioning is greatly increased, and the flexibility of snapshot is greatly improved. In addition, the embodiment of the invention further provides a corresponding implementation device, so that the method can have higher practicability. The device has corresponding advantages.

The invention provides an automatic parking method and system for a vehicle, and relates to the technical field of Internet of Vehicles automatic driving. The automatic parking method comprises the steps that the time of a vehicle is synchronized with the time of an edge cloud; acquiring driving environment video data, motion state information and time corresponding to the driving environment video data of the vehicle in real time; performing automatic parking according to the driving path planned by the edge cloud; when the vehicle receives an automatic parking stop instruction sent by the mobile terminal, automatic parking is stopped, wherein the automatic parking stop instruction is selectively sent out by a user of the vehicle according to driving environment video data, motion state information and time delay displayed on the mobile terminal, and the driving environment video data and the motion state information are obtained from the edge cloud by the mobile terminal; the time delay is obtained by the mobile terminal from the time corresponding to the driving environment video data acquired from the edge cloud. According to the automatic parking method, accurate time delay can be obtained in real time at the mobile terminal.

The invention discloses a full-configuration real-time simulation test method based on double-satellite hardware in a loop. The method comprises the following steps: step 1, two sets of satellites respectively carry real-time simulation test systems; step 2, data communication mechanisms of the two sets of test systems perform communication interaction by using a fixed-period mutual transmission mode, one set of test system is used as a time sequence main control end, the other set of test system is used as a controlled end, and the controlled end receives a rising edge or a falling edge of amain control end signal to complete time correction work in a triggering mode; and step 3, a software time supplementing mode is used to ensure the time consistency of the track data, so that the timebetween the two sets of test systems is synchronized. According to the invention, the communication protocol interaction can be carried out through two modes of RS422 serial port communication or UDPnetwork port communication under an engineering constraint condition, and the formation test task of the double-satellite formation is completed through a time synchronization method.

The invention discloses a method for unidirectional data synchronization between multiple data sources and relates to the technical field of data storage. Through carrying out mapping management on data between master and slave data sources, configuration management on unidirectional data synchronization between the master and slave data sources and distributed scheduling management on data transmission tasks, making transmission nodes carry out parallel transmission on the data and changing and collecting the data between the master and slave data sources, data synchronization is realized, and the problems of consistency and timeliness of the data between the master and slave data sources of the existing distributed data storage are solved. The method has the advantages of strong fault tolerance, simplicity in operation and data change timing consistency.

The invention discloses a unified time sequence control and cooperative processing method for a radar system. The method includes the following steps that: a radar control system generates time sequence signals in different forms on the basis of a time sequence according to the processing requirements of a transmitting system and a signal processing system and transmits the time sequence signals;the signal processing system extracts and processes received echo signals according to a transmitting time sequence and a receiving time sequence which are transmitted by the control system, so as toeliminate invalid leakage signals; data interception is performed on the received processed echo signals according to system requirement design, and therefore, signals within a coverage range requiredby the system are reserved, and signals outside the coverage range required by the system are removed; and the signals within the coverage range required by the system are synthesized according to different distances. With the method of the invention adopted, the extraction of effective echo signals is ensured, additional resource consumption that does not contribute to system requirements is reduced, and the problem of excessive resource consumption of traditional schemes is solved, and system operation efficiency is effectively improved.

The embodiment of the invention discloses an Internet of Things message issuing method and device, electronic equipment and a storage medium. The Internet of Things message issuing method can comprisethe following steps of sending a request message for requesting synchronization; after the request message is sent, a receiving window being opened; receiving a response message returned for the request message through the receiving window; determining whether the time of the terminal device and the time of the gateway device are synchronous according to the receiving condition information of theresponse message; if the time of the terminal device and the time of the gateway device are synchronized, adding the terminal device and the gateway device into a multicast group; and receiving a downlink multicast message sent by the management equipment based on the multicast group. Therefore, batch control of a plurality of devices can be realized through one or a few downlink data.

The invention discloses a method of dynamic soft tissue motion prediction for an HIFU treatment system. The method comprises the following steps: firstly, preprocessing an HIFU image sequence; constructing a prediction mapping relationship between the image sequence and a label sequence; constructing a data set and carrying out online data enhancement on a training set; building and training a dynamic soft tissue motion prediction model of the HIFU treatment system and acquiring an optimal model through an evaluation index optimization network; and after the optimal model is obtained, inputting the test set into the network, and carrying out dynamic soft tissue motion prediction and performance evaluation of a medical image sequence. A combination mode of combining the stacked convolutionlong-short-term memory network with a time wrapper is adopted to provide basic data conditions for a network model to process a medical image sequence, space-time information of an HIFU image sequencecan be fully utilized, and motion prediction with an accurate contour can be carried out on dynamic soft tissue of an HIFU treatment system.

The invention provides a depth map processing method and device, and the method comprises the steps: obtaining a first depth image frame and a second depth image frame adjacent to the first depth image frame; determining a first content value of each first pixel and a second content value of the corresponding second pixel, and obtaining a content difference between the first content value and thesecond content value; determining a credible pixel in the first depth image frame according to the content difference, and determining the area of a region where the credible pixel is located; and when the area of the region meets a preset condition, adjusting an acquisition interval of the depth image frame according to the area of the region, and obtaining a next to-be-processed depth image frame according to the acquisition interval. Therefore, the sampling interval of the image frame is determined based on the area of the area where the depth value changes gently, and the calculation amount of time consistency filtering is reduced.

The invention discloses a hybrid power transient state measurement control test system. The system comprises a test room, a large bottom plate and an electric dynamometer; the large bottom plate is arranged at the bottom of the test room; a shock absorber is arranged between the test room and the large bottom plate; the electric dynamometer, an analog electronic throttle, an analog turbocharged intercooler and a hybrid power installation bracket are arranged on the large bottom plate; hybrid power is arranged on the hybrid power installation bracket; the installation bracket is provided with an adjustment screw rod; the adjustment screw rod is fixed on an adjustment seat through an adjustment frame; a shaft coupling, a torque sensor, an elastic shaft coupling and a transmission shaft are sequentially connected with the right end of the electric dynamometer; and a test system is arranged on one side of the large bottom plate. The hybrid power transient state measurement control test system has the advantages that an overall hybrid power vehicle serves as a control target, the verification of relative properties, such as the dynamic property, the emission performance and the economical efficiency of the power assembly of a passenger vehicle and a commercial vehicle are realized, and the verification of an overall vehicle strategy related to the power assembly and the verification test of related components can be performed.

The invention discloses a plane shunting system with an air interface timing function and a timing method. The system comprises a district station, n locomotive stations and n flat regulation handsets. The district station is connected with the n locomotive stations and the n flat regulation handsets through a wireless air interface network. Remote software is installed in a PC. The PC and the district station are connected through a TCP/IP network. The air interface timing is carried out through an air interface network to exchange messages in the form of signaling. The system is convenient and simple to implement, can cover all pieces of equipment in the air interface network, and saves the complicated process of time configuration for each piece of equipment, thereby being simple, convenient and quick; the time consistency of the equipment in the system is ensured by the timing method; the method adopts automatic timing, does not need human interference and greatly saves the manualtime; and the time consistency of operation between each piece of equipment in the system is ensured.

The invention is applicable to the technical field of displays, and provides an aviation different-speed image motion compensation circuit, which comprises a main time sequence generator, used for generate driving time sequence required by a CCD; a different-speed image motion time sequence controller, used for forwarding the driving time sequence generated by the main time sequence generator andgenerating an image motion compensation driving time sequence during different-speed image motion compensation; and a driving circuit used for amplifying and translating the driving time sequence output by the different-speed image motion time sequence controller so as to drive the CCD. The main time sequence generator is added to the aviation different-speed image motion compensation circuit, andthe main time sequence generator uniformly calculates various compensation parameters during different-speed image motion compensation, so that the time sequence consistency during different-speed image motion compensation is effectively ensured, and the effect of different-speed image motion compensation is better improved.

The invention discloses a verification method for an algorithm module in a chip, and the method comprises the steps: carrying out the analysis of an algorithm module verification request, and obtaining a to-be-verified target algorithm module; calling a target SystemC reference model corresponding to the target algorithm module; obtaining each test case corresponding to the target algorithm module through a preset input agent, and respectively inputting each test case into the target SystemC reference model and the target algorithm module according to a preset time sequence; utilizing an output agent to respectively obtain each level of output of the target SystemC reference model and the target algorithm module; and performing corresponding comparison on each level of output to obtain a verification result of the target algorithm module. According to the method, the time sequence consistency of the target SystemC reference model and the target algorithm module is ensured, the workload is greatly reduced, and the verification efficiency is improved. The invention further discloses a device, equipment and a storage medium, which have corresponding technical effects.