34results about How to "Avoid storage space" patented technology

A coffee storage container, for storing a quantity of coffee within a jar having a bottom and a side wall, and using a piston having a top and bottom, and a one-way valve. The quantity of coffee is placed in the jar bottom. The piston extends within the jar and defines a storage volume beneath the piston bottom. A stem is selectively attached to the piston top to push the piston downward to allow air to escape through the one-way valve so that the storage volume becomes substantially the coffee volume and little or no air remains within the storage volume. The stem may be removed from the piston for storage.

The embodiment of the invention discloses front-end equipment, a video file backup method and control method, device and system thereof. The control method of video file backup comprises the following steps of: obtaining index information of a temporarily stored video file during the period of network disconnection of the front-end equipment; establishing a corresponding video backup task according to the index information; issuing the video backup task to platform storage equipment according to a preset backup strategy; and sending the temporarily stored video file during the period of network disconnection to the platform storage equipment for backup after the network of the front-end equipment returns to normality. Through the implementation of the embodiment of the invention, the video file during the period of network disconnection is automatically backuped to the platform storage equipment from the front-end equipment according to the preset backup strategy after the network returns to normality, thereby facilitating a user to operate and use.

An inkjet printer includes an inkjet head that ejects ink onto a recording medium, a movable ink tank having an ink introducing opening, an ink storing space for storing ink introduced through the ink introducing opening, and an ink discharging opening for discharging the ink of the ink storing space into the inkjet head, and a carriage that supports the inkjet head and the movable ink tank and reciprocates in a direction perpendicular to a feeding direction of the recording medium. The movable ink tank includes a partition wall extending in a direction perpendicular to a reciprocating direction of the carriage to divide the ink storing space into multiple rooms being in fluid communication with each other at upper portions thereof.

The invention discloses a computed hologram generation method for a three-dimensional point cloud model. The computed hologram generation method comprises the steps of: (1) reading three-dimensional coordinate original data of object points of the three-dimensional point cloud model, and numbering the object points; (2) appending a preset hologram recording distance to a Z coordinate of each object point; (3) taking the Z coordinates of the object points as a major loop condition, and establishing a two-dimensional blank surface patch in each loop; (4) traversing all the object points, finding out the object points with Z coordinates equivalent to the Z coordinate of the object point of the current loop, and correspondingly mapping the object points onto the two-dimensional blank surface patch to generate a two-dimensional surface patch containing point clout model information; (5) calculating an optical field on a hologram plane corresponding to the two-dimensional surface patch by adopting an FFT-based method; (6) and repeating the steps from (3) to (5), and superposing the optical fields obtained in the loops to obtain a computed hologram. By applying the computed hologram generation method, the computational amount of the computed hologram can be reduced, thereby avoiding the waste of a significant amount of time required by a point source method and saving the extra storage space occupied by a look-up table.

The invention discloses an electronic label system comprising an electronic label, a read-write device and an antenna, wherein a data packet of the electronic label is divided into a guiding region and a data region, wherein the guiding region consists of eight bytes amounting to 64 bits, when the data bit of the guiding region is 1, a data field is provided with storage data, when the data bit is 0, the data field is not stored with data; the data region comprises a field number byte, a data length byte, a data portion and a BCC check code; and the data packet of the electronic label is encrypted through a DES (Data Encryption Standard) to generate data packet cryptographic texts with an equal length to be stored into the electronic label. The invention also discloses a compression and encryption method of the electronic label. The electronic label system and the compression and encryption method thereof save the storage space of the electronic label and realize safe reading of the electronic label data.

A urinary catheter kit is provided. The catheter kit includes a catheter with a flared end and a package provided with interior protrusions for cooperating with the flared end of the catheter. The largest outer diameter of the flared end of the catheter is slightly larger than the smallest diameter of the package at the protrusions. Thereby, the protrusions will function as a backstop for the catheter. The rigidity of the catheter at the flared end is selected so that—depending on the angle of the flared end—the flared end will be able to flip over if it is subjected to a force over a predetermined level. Thereby the catheter will be able to be entered back into the package.

The invention discloses a map vector data slicing method for superposing power grid data, solves the problems of slicing time of map tiles and storage space of the map tiles, automatically stores themap slice data, and improves slice storage efficiency. By adopting different strategies according to different hierarchies, the tiles are efficiently established, the time period for publishing the map visualization service is greatly shortened, and the user response time is minimized.

A liquid sensor may comprise a first electrode, a second electrode disposed inside the first electrode, and a partition wall comprising a surface defining a storage space with a first opposing surface of the first electrode and a second opposing surface of the second electrode. One of the first electrode, the second electrode and the partition wall may comprise a first communication opening communicating an inside of the storage space and an outside of the storage space and disposed at an upper portion of the storage space. One of the first electrode, the second electrode and the partition wall may comprise a second communication opening communicating the inside of the storage space and the outside of the storage space and disposed lower than the first communication opening. An opening direction of the first communication opening may be different from an opening direction of the second communication opening.

The invention discloses a method for generating a computational hologram of a three-dimensional point cloud model, comprising: (1) reading the original three-dimensional coordinate data of each object point in the three-dimensional point cloud model, and numbering each object point; The Z coordinate of an object point is added with a predetermined hologram recording distance; (3) the Z coordinates of each object point are used as the main cycle condition, and a two-dimensional blank surface is established for each cycle; (4) all object points are traversed, and the The object points whose Z coordinates are equal to the Z coordinates of the object point of the current cycle are found one by one, and correspondingly mapped to the two-dimensional blank surface to generate a two-dimensional surface containing point cloud model information; (5) the two-dimensional surface The method based on FFT is used to calculate the corresponding light field on the holographic plane; (6) Repeat (3)-(5) to superimpose the light fields obtained in each cycle to obtain a calculated hologram. The application of the invention can reduce the amount of calculation for calculating the hologram, and avoid the large amount of time consumed by the point source method and the extra storage space brought by the look-up table.

The invention relates to a method for eliminating crosstalk interference of elastic reverse time migration, which comprises the following steps: a. establishing a geophysical medium model; The filter filters the source wavelet and multi-component records, constructs the source wave field based on the filtered source wavelet, and calculates the separated source wave field; d constructs the receiver wave field and additional receivers based on the filtered multi-component records wavefield; e Based on the separated source, receiver, and additional receiver wavefields, Hilbert transform is applied, imaging conditions are applied, and all components are summed to obtain PP, PS, SP, and SS image. The method of the invention not only effectively reduces the economic cost, but also avoids a large amount of storage space required by the wave field snapshot in the traditional wave field separation technology.

The invention relates to a method and a system for extracting, looking up and comparing visual patterns based on frame-to-frame variation characteristics. The method comprises the following steps: performing effective video preprocessing, and unifying various videos with different qualities and resolution ratios to a level with accordant resolution ratios and video qualities as much as possible; performing calculation of relativity between a number of adjacent frames to find out a plurality of image blocks with obvious (such as the biggest difference) characteristics between a number of the adjacent frames, and coding the plurality of the blocks to form frame fingerprints; and combining the sequences of the frame fingerprint to form the visual patterns. Simultaneously, because the method for extracting the visual patterns has good robustness, a visual pattern comparison and lookup algorithm which is matched with the method for extracting the visual patterns and is based on matched inverted row query and window sliding is invented. Under the condition of ensuring the accuracy of the query, the retrieval rate is greatly improved. The method and the system can be applicable for real-time operations.

The invention discloses a method for storing files, which is applied in a distributed storage system to obtain the first level of the first file to be stored from a first client, and M levels set from the distributed storage system Determining a first-level storage server group corresponding to the first level in the storage server group, and then based on a preset policy, determining a first-level storage server group from the first-level storage server group, and then based on a preset policy A rule is set to determine a first server from the first storage server group, and then obtain the first file to be stored at the first level, and store the first file to be stored in the first server, Wherein, the first server can synchronize the first file to be stored to each server in the other servers of the first storage server group.

The invention provides a message synchronization method and device of a social group, equipment and a storage medium, and relates to the field of computer application. The method comprises the following steps: pulling a message identifier and a message timestamp corresponding to a chat record message from a server, and storing the message identifier and the message timestamp in a local database; obtaining a query operation executed by a user on the message timestamp, and determining a target message identifier corresponding to the message content of the to-be-pulled chat record message according to the query operation; and downloading the message content of the corresponding chat record message from the server according to the target message identifier. According to the technical scheme, the problem that the traffic and the storage space are wasted due to the fact that all the messages of the social group are synchronized is avoided, the chat record messages are selectively downloaded according to the query operation of the user, unnecessary traffic waste is reduced, and the storage space of the client side is saved.

Embodiments of the present application provide a display device and a video recording method. The display device includes a display and a controller, and the controller is configured to: monitor the recording duration in real time after starting the video recording process under the first information source; The recording status control of the foreground display authority under all sources, wherein the recording status control is configured to display the recording duration; in response to receiving a source switching request input by the user, switch the first source to the The second information source obtained by the switching request of the information source, and controlling the background operation of the video recording process; displaying the recording status control on the display interface under the second information source. This application solves the problem of not being able to view the recording information after switching the source, prevents the recorded video from occupying a large amount of disk storage space caused by continuous recording, and improves the user's video recording experience.

The invention discloses an initialization method and system for electromagnetic transient simulation of a doubly-fed fan. The initialization method comprises the following steps: acquiring set activepower, reactive power and terminal voltage of the doubly-fed fan; calculating theoretical parameters of the double-fed fan; taking the obtained theoretical parameters as input of a first stage of a signal selector in a doubly-fed fan electromagnetic transient simulation model, obtaining integral output in GSC and RSC double closed-loop control, and finishing a first initialization stage; acquiringcontrol loop output parameters of the double-fed fan; calculating a dq-axis output voltage of the GSC and a dq-axis output voltage of the RSC; and taking the control loop output parameters, the dq-axis output voltage of the GSC and the dq-axis output voltage of the RSC as the input of a second stage of the signal selector to obtain the integral output in the GSC and RSC double closed-loop control, and finishing the second initialization stage. According to the initialization method, the double-fed fan can directly operate in a given stable state, and the simulation time and the storage spaceconsumed in the initialization process are reduced.

The invention discloses an initialization method and system for electromagnetic transient simulation of a double-fed fan. The method includes: obtaining the set active power, reactive power and machine terminal voltage of the double-fed fan; calculating the theoretical parameters of the double-fed fan; using the obtained theoretical parameters as the first signal selector in the electromagnetic transient simulation model of the double-fed fan stage input, get the integral output in the double closed-loop control of GSC and RSC, and complete the first initialization stage; obtain the control loop output parameters of the doubly-fed fan; calculate the dq axis output voltage of GSC and the dq axis output voltage of RSC; convert the control loop The output parameters, the dq-axis output voltage of GSC and the dq-axis output voltage of RSC are used as the input of the second stage of the signal selector, and the integral output in the double closed-loop control of GSC and RSC is obtained, and the second initialization stage is completed. The invention can make the doubly-fed fan directly run in a given stable state, reducing the simulation time and storage space consumed in the initialization process.