31results about How to "Control data volume" patented technology

The invention provides a message retransmission method and system. The method comprises the following steps: setting a retransmission time interval corresponding to any message to be retransmitted, wherein the retransmission time interval increases with the number of historical retransmissions; at the arrival of the retransmission time interval, performing a retransmission operation on any messageto be retransmitted; obtaining an operation status corresponding to the retransmission operation, and when the operation status is failure, updating the number of historical retransmissions, and whenthe number of historical retransmissions is smaller than a retransmission number threshold, and the number of messages to be retransmitted in a retransmission queue is smaller than a number threshold, adding any message to be retransmitted to the retransmission queue; and repeatedly executing the above steps, until the operation status is successful or the number of historical retransmissions reaches the retransmission number threshold or the number of messages to be retransmitted in the retransmission queue reaches the number threshold. By adoption of the method and system, invalid retransmission operation can be avoided, the retransmission efficiency is effectively improved, the operating pressure of the system is reduced while ensuring accurate delivery of the messages, and it is conducive to improving the overall performance of the system.

The invention discloses a data backup disaster tolerance method. The method comprises the following steps of receiving a control instruction of backup data; on the basis of the control instruction, selecting a backup mode, carrying out segmentation processing on data to be backed up, and obtaining a plurality of data blocks; respectively obtaining first mark information in the data blocks and searching whether the same first mark information exists in the backed-up data or not; when a searching result shows that the same first mark information does not exist; storing the data to be backed up in a local storage terminal, and storing the data to be backed up in the cloud storage terminal through the local storage terminal. Therefore, the technical effects that the transmission data volume can be effectively controlled, and the waiting time is reduced are achieved.

The invention discloses a method and device for controlling TCP transmission performance. The method comprises the following steps: acquiring a reduction proportion in direct proportion to a current congestion window and reducing the congestion window by the acquired reduction proportion in a quick recovery phase; retransmitting the critical lost packet if the network is in a congested state or the current congestion window is lower than the window minimum threshold when an arbitrary phase for controlling the TCP transmission performance requires retransmission, wherein the critical lost packet is a lost data packet causing reduction of the congestion window; and respectively retransmitting a possibly lost data packet and the critical lost packet if the network is in a non-congested state and the current congestion window is not lower than the window minimum threshold. The method and device can be used for improving the TCP transmission performance.

The embodiment of the invention discloses a data processing method and system, and related equipment. The method comprises the following steps that: a client generates a data abstract for a stored data set and sends the data abstract to a server; the determines feedback information for the client based on the data abstract and sends the feedback information to the client; when the feedback information received by the client includes a target data selection policy and a target policy parameter, the client determines a data sub set from the data set based on the target data selection policy and the target policy parameter and sends the data sub set to the server; and the server can establish a prediction model or update an existing prediction model based on the data sub set. Therefore, the volume of data transmitted to the server by the client can be controlled and thus resource consumption during the data processing can be reduced. Besides, representative data can be selected accurately and conveniently and thus an accurate prediction model can be obtained.

The invention relates to a steel quality guarantee book privacy protection and sharing method and system based on a block chain. The method comprises the steps that a block chain platform is constructed, and a steel production institution and a steel sales institution are accessed to the block chain platform based on unique identity authentication information; the block chain platform receives thesteel resource information, the quality guarantee information and the quality guarantee document description information which are signed and uploaded by the steel production institution, and storesthe encrypted quality guarantee document into a distributed document storage module; the block chain platform feeds back corresponding quality guarantee information when receiving a query request of the steel sales institution; and after receiving purchase confirmation information of the steel sales institution, the blockchain platform calls a corresponding encrypted quality guarantee document from the distributed file storage module in response to a download request and feeds back the encrypted quality guarantee document, and the encrypted quality guarantee document is downloaded by a purchased user after being decrypted. Compared with the prior art, the method has the advantages of high information security and the like.

The embodiment of the invention provides a video playing method and device and electronic equipment. The method comprises the following steps: determining whether an unplayed video frame exists in cached video data or not at preset awakening time intervals; if the unplayed video frame does not exist, pausing playing and sending at least one first data acquisition request to the server, caching thevideo data sent by the server until the playing duration corresponding to the cached video data is not less than the preset first caching duration, and recovering playing; if the video frames which are not played exist, determining whether the current playing state is playing pause or not, and if the current playing state is not playing pause, judging whether the playing time corresponding to thevideo frame with the earliest timestamp arrives or not; and if the playing time corresponding to the video frame with the earliest timestamp in the cached video data arrives, playing the video framewith the earliest timestamp. The fluency of playing the video by the client can be effectively improved.

The invention relates to a two-stage partitioning method of a topological network. The method comprises the following steps that first, topological data are generated, wherein network nodes in a graph are traversed, and relevant information between the nodes is acquired; second, partitioning operation is carried out, wherein partitioning operation is divided into first stage partitioning and second stage partitioning, the first stage partitioning is conducted according to the connectivity between the nodes, and the second stage partitioning is conducted according to the set maximum node number; third, topological block information is updated and maintained, wherein in a dynamic network, the nodes are allowed to change, so that synchronous updating of corresponding topological block information is guaranteed when the network is edited; fourth, topological analysis is conducted based on two-stage partitioning. According to the two-stage partitioning method of the topological network, the algorithm of two-stage partitioning is used for effectively controlling the data amount of topological traversal, traversing to the entire topological network is avoided in the topological analysis process, and the problem that the entire network is a connected whole can be well solved.

The invention discloses a method and device for monitoring a vibration device and a readable storage medium. The device for monitoring vibration device comprises a first accelerometer sensor, a second accelerometer sensor and a controller; and the controller is used for controlling collection of the first accelerometer sensor and the second accelerometer sensor according to the vibration state of the vibration device.

The embodiment of the invention provides a flow control method comprising that: the state information of a present receiving window which is transmitted by a receiving entity is received; a present transmitting window is adjusted according to the state information of the present receiving window; the adjusted transmitting window is used for transmitting data. The embodiment of the invention also provides a receiving entity and a transmitting entity and a plurality of flow control methods. By adopting the technical proposal provided by the embodiment of the invention, the receiving entity directly informs the state information of the present receiving window to the transmitting entity, and the transmitting entity adjusts the present transmitting window according to the state information of the present receiving window; on one hand, the data size which can be scheduled by the receiving entity can be effectively controlled and the effect that the transmitting entity is directly controlled to transmit data by the receiving entity can be realized; on the other hand, as the receiving entity can directly control the transmitting entity to transmit data, the technical proposal which is provided by the embodiment of the invention is suitable for communication systems like E-UTRAN.

The invention provides an account information query method and device, and relates to the technical field of big data. The method comprises the steps: displaying main account data and transaction query button data through a page; when an expansion instruction is received, displaying a target number of sub-account data of the main account data, wherein the expansion instruction is generated by clicking main account data, and the target number is smaller than a first preset threshold; and when a query instruction is received, displaying an account information query result, wherein the query instruction is generated by clicking transaction query button data after the main account data and the sub-account data are clicked, and the group number of account data included in the account information query result is smaller than a second preset threshold value, and the main account data included in the account information query result comprises at least one group of sub-account data. According to the method and the device, the hierarchical relationship between the main account and the sub-accounts can be efficiently displayed, the data volume of information query and display can be controlled by setting the first preset threshold value and the second threshold value, and the query efficiency and the display effect are ensured.

The invention discloses a GIS-based power distribution network load distribution display method and apparatus. The method comprises the steps of performing rasterizing calculation on a power distribution network load, a power distribution network average load rate and a power distribution network maximum load rate based on longitude and latitude; superposing a three-dimensional histogram on a GIS map through a WEB front-end page to display the power distribution network load, the power distribution network average load rate and the power distribution network maximum load rate which are obtained through calculation; according to the method, the problems that when the power distribution network load is displayed on the basis of a map, the number of power distribution network transformers is too large when the power distribution network transformer load is directly displayed, and load display in a two-dimensional mode is not visual enough are solved; the distribution and fluctuation change conditions of the load and the load rate of the power distribution network can be visually seen, meanwhile, the data volume displayed at the front end is controlled, and good display performance is achieved.