39 results about "Acquisition Duration" patented technology

The present invention provides an urban traffic system state visualization evaluation method based on traffic flow characteristics. Said method includes the following steps: A, in specific road section collecting real-time signal waveform whose continuous time is not less than three months, forming traffic flow state parameter; B, making traffic flow state parameter undergo the process of signal filter treatment so as to obtain traffic flow sample population; C, calculating average value and standard difference of all the samples in sample population, and using ratio value of standard difference and average value as sample discrete coefficient; D, according to traffic flow multidimensional state parameter strong aggregation characteristics forming and optimizing standard characteristic-phase plane graph for evaluation; and E, placing historical data, current data and predictive data of traffic system on the standard phase graph, and visually distinguishing running state of traffic system and its change tendency.

The invention relates to a detecting system and method for the mechanical properties of vocal fold vibration. The detecting system comprises a high-speed photography laryngoscope module, a high frame rate ultrasound module, a data acquisition module, a synchronous acquisition control module, an image display module, a data storage module, an imaging data processing module and a mechanics parameter extraction module; a high-speed photography laryngoscope and high frame rate ultrasound are respectively connected with the same computer. The detecting method comprises the following steps: 1) setting corresponding acquisition duration and storage path; 2) ensuring a high frame rate ultrasound probe to cling to the side of throat and inserting the high-speed photography laryngoscope from an oral cavity; 3) regulating related parameters of ultrasound and position and focus of the high-speed photography laryngoscope; 4) ensuring persons to be detected to vocalize and synchronously acquiring and storing data; 5) extracting glottis area and somatic layer shift; 6) extracting the mechanics parameter of vocal fold vibration. The invention provides a quantitative extracting method of the mechanics parameter of vocal fold vibration, thus obtaining the mechanics parameter of vibration of a vocal fold cover layer and the somatic layer with different mechanical properties.

The invention discloses a data acquisition method and a data acquisition system. The method is applied to the data acquisition system. The system comprises a client, intermediate equipment and at least one server cluster, wherein at least one first target data is pre-stored in a database which can be accessed by the intermediate equipment; and in a normal network state, the acquisition duration of enabling the client to acquire the first target data from the server clusters exceeds preset duration. The method comprises the following steps: transmitting a first data acquisition request to the intermediate equipment by the client, wherein the first data acquisition request is used for requiring the first target data; and extracting the first target data from the database by the intermediate equipment, and returning the first target data to the client. According to the method and the system disclosed by the invention, the speed of the client for acquiring the data from the server can be increased.

The present invention is directed to a method for use in conducting cardiac MR imaging which allows for reconstruction of T1 maps, cine images and IR-prepared images from one raw data set, wherein the method comprises the following steps: a) acquisition of raw data by use of an ECG-triggered, segmented, inversion recovery (IR) -prepared Look-Locker type pulse sequence for data acquisition, wherein the pulse sequence encompasses more than one shot, wherein each shot comprises: i) an ECG-triggered inversion pulse; ii) SSFP cine data acquisition of radial segmented profiles over more than one RR-interval for a predefined acquisition duration AD; and iii) a relaxation duration RD, during which no data is acquired; b) retrospective gating of raw data by sorting acquired raw data for each RR-interval into a pre-determined number of heart phases by definition of specific time windows within the RR-intervals and sampling of raw data acquired during the time windows respectively; c) image reconstruction, wherein the retrospectively gated raw data is used for reconstruction of T1 maps, cine images and/or IR-prepared images.

The invention discloses a multi-communication-mode multifunctional monitoring method and equipment, and relates to the technical field of communication monitoring. The method comprises the following steps: uniformly distributing a monitoring sensor group and a corresponding wireless communication module at each monitoring point; distributing cameras around each monitoring point; generating an acquisition instruction according to a preset rule, and sending the acquisition instruction to the monitoring sensor group; when an acquisition instruction is received, employing the monitoring sensor group for acquiring threatened parameter data, comparing the threatened parameter data with a corresponding parameter alarm threshold value, and giving an alarm for abnormal data; when the alarm signal is received, uploading video data shot by the camera to the client through the wireless communication module. According to the invention, the acquisition interval and the acquisition duration of the monitoring sensor group corresponding to the monitoring point are determined according to the threat coefficient, the monitoring resources are reasonably arranged, the monitoring efficiency is improved, the service life of the battery is prolonged, and the problem of difficulty in field power supply is effectively solved.

The embodiment of the invention provides a log data packet obtaining method and device and a computer readable storage medium. The method is applied to the process that a log collection terminal sendsat least one log data packet to a server. The method is executed in the server, and the method comprises: obtaining the total number of data packets of a first log data packet sent by the log collection terminal; obtaining a first log completion rate according to the total number of the data packets and a preset total number of sent packets of the log acquisition terminal; obtaining a first log obtaining duration according to the first log completion rate; and continuing to wait for receiving a second log data packet within the first log acquisition duration, and under the condition that thesecond log data packet is received within the first log acquisition duration, obtaining a final log data packet according to the first log data packet and the second log data packet.

The embodiment of the invention discloses a fingerprint template obtaining method and a related device. The method comprises the following steps of continuously collecting user fingerprint informationfor multiple times to obtain a plurality of fingerprint pictures; outputting the fingerprint input guide information, executing an accumulation reference operation according to the plurality of fingerprint pictures when a touch operation of a user for a preset area is detected, and outputting fingerprint input success information; repeatedly executing the preset operation until the execution completion of the accumulation reference operation is detected in the Nth preset operation execution process, terminating execution of a first operation in the preset operation, and outputting the fingerprint input completion prompt information, wherein the preset operation comprises the following operations of outputting the fingerprint input guide information, detecting a touch operation, and outputting the fingerprint input success information when the touch operation is detected; and storing the target picture obtained according to the accumulation reference operation as a fingerprint template. According to the embodiment of the invention, the fingerprint template input speed can be improved visually, and the fingerprint template acquisition duration can be shortened.

The invention discloses an SPECT imaging prediction model creation method and device, equipment and a storage medium. The method comprises the following steps: acquiring a training set containing a plurality of scanning image groups; wherein each scanning image group comprises a standard acquisition duration SPECT image and a short acquisition duration SPECT image which correspond to each other; performing network construction based on the deep convolutional neural network to obtain a to-be-trained network; and training the to-be-trained network by taking the short acquisition duration SPECT image in the training set as input side training data and taking the standard acquisition duration SPECT image in the training set as output side training data to obtain an SPECT imaging prediction model so that the SPECT image prediction model is used to predict and obtain an SPECT prediction image of the SPECT image with the short acquisition time length under the standard acquisition time length. The SPECT imaging time can be greatly shortened under the condition that the imaging quality of a medical image is kept.

The invention is suitable for the technical field of terminals, and particularly relates to an image coding method, an image decoding method, terminal equipment and a readable storage medium. According to the method and the device, when the high-resolution image is displayed on the low-resolution terminal equipment, only part of image data and differential data need to be transmitted or acquired, so that the transmission duration of the image data is effectively shortened, the image transmission speed is improved, or the acquisition duration of the image data is effectively shortened, and the image acquisition speed is improved. Moreover, the terminal equipment only needs to decode part of the image data and the differential data to obtain the target image meeting the display requirement of the terminal equipment, so that the operation complexity of the terminal equipment during image processing is effectively reduced, the processing power consumption of the terminal equipment is reduced, the image processing efficiency is improved, the image presentation speed is improved, and the user experience is improved. And user experience is improved.

The invention provides a detection device used for online state inspection of operating state of a crane slewing mechanism. The detection device comprises a signal sensor, a signal processing host, an upper control computer and an external triggering photoelectric sensor, wherein the signal sensor is used for detecting an acoustic emission signal of operation of the crane slewing mechanism and obtaining fault information; the signal processing host is connected with the signal sensor and is used for acquisition parameter setting, signal acquisition, feature extraction and data storage and uploading of a fault signal to the upper control computer; the upper control computer is connected with the signal processing host and is used for displaying various related data in a visual way and carrying out fault pattern discrimination and state display; and the external triggering photoelectric sensor is connected with the signal processing host and is used for accurately controlling signal acquisition opportunity and acquisition duration of the signal processing host. The detection device can effectively detect state information of the crane slewing mechanism and timely find defects and judge severity of the defects so as to timely carry out maintenance treatment. Thus, accidents of a crane can be avoided.

The invention relates to a generator air gap waveform acquisition method, a device and an acquisition system; the method comprises the following steps: obtaining operation parameters in a generator start up and shut down process, and start gathering the generator air gap waveforms if the operation parameters are matched with preset standard parameters; recording a waveform acquisition duration, and stop gathering when the waveform acquisition duration equals to the preset duration, thus obtaining the air gap waveforms gathered in the waveform acquisition duration. The method can automaticallygather the air gap waveforms in the generator normal start up and shut down process, and manual operation is not needed to adjust and fix the generator operation parameters, thus making no extra timestay in the generator normal start up and shut down process, and saving repairing time.

The invention discloses a multi-signal-based user health state detection method, wearable equipment, a device and a medium. The method comprises the steps: a signal acquisition instruction is acquired, and a signal according to the signal acquisition instruction is acquired; when the signals are collected, the signal quality of the signals collected within a preset collection duration is judged by adopting a first preset algorithm every other preset collection duration, and the signals with qualified signal quality are reserved; the qualified signal duration is determined according to the signal quality, the preset total acquisition duration of the signals is adjusted according to the qualified signal duration, and the qualified signal duration is the duration when the signal quality is qualified; and after the signal acquisition is finished, if the data volume of the signals with qualified signal quality meets a preset condition, calculation is carried out to obtain a signal analysis result by adopting a second preset algorithm based on different types of signals and/or a synchronizing signal consisting of a single signal, and the health state of a user is output according to the signal analysis result. By adopting the method, the health state of the user can be smoothly output.

The invention discloses an information acquisition method and device, a computer device and a storage medium. The information acquisition method comprises the following steps performed by an information acquisition end: acquiring an information acquisition task, wherein the information acquisition task comprises the acquisition frequency, the acquisition duration, a target acquisition end IP and an information processing end IP; invoking a built-in information acquisition tool if the information acquisition end IP is consistent with the target acquisition end IP, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end during the acquisition duration according to the acquisition frequency; sending each channel state information to an information processing end corresponding to the information processing end IP in real time by using a socket protocol. The information acquisition method can automatically send the channel state information to the information processing end through the socket protocol in real time, which facilitates the information processing end to evaluate the channel quality in real time.

The invention discloses a wireless data acquisition method and a wireless data acquisition device, which are used for solving a problem that wireless data acquisition rate is low when a wireless acquisition module scans on a fixed channel in the existing technology. In the embodiment of the invention, firstly, channel information, acquired last time, of each wireless channel is determined; then, channel priority is determined according to the channel information; acquisition duration of this time of the wireless channel is further determined according to channel minimum acquisition duration and the channel priority; consequently, acquisition requirements are determined; if at least one wireless acquisition module cannot satisfy the acquisition requirements, the wireless channel is adjusted, thus, after adjustment, each wireless acquisition module can satisfy the acquisition requirements; and finally, acquisition of wireless data is executed according to the acquisition duration corresponding to each adjusted acquisition module. Since each adjusted acquisition module satisfies the acquisition requirements, acquisition rate of wireless data can be improved, and consequently, the acquisition rate of a MAC address and a network virtual identity can be improved.