61results about How to "Download to achieve" patented technology

The invention relates to the technical field of large file processing, in particular to a large file management system and method based on blockchains. The system comprises a storage layer composed ofmultiple blockchain storage nodes, a query layer composed of multiple blockchain query nodes and an application client side. The storage layer is used for storing large file data, the query layer isused for managing the storage layer and storing the large file metadata, and the application client side is used for storing, downloading and querying the large file data through the query layer. According to the large file management system and method, great convenience can be provided for users to store, download and query the large file data and conduct other operations.

The invention provides a POS (point of sale) machine key downloading method, device and system. The POS machine key downloading method comprises the steps of acquiring an IC card key, receiving a POS key ciphertext issued by an order receiving platform server for a POS machine of the key to be downloaded, decrypting the POS key ciphertext by using the IC card key so as to acquire a POS machine master key to be used, and storing the POS machine master key to be used. In the invention, the POS key ciphertext is not easy to be cracked, and the mode that the POS key ciphertext is directly transmitted to the POS machine of the key to be downloaded from the order receiving platform server enables the POS machine master key to be not easy to be intercepted in the downloading process compared with a mode of transmitting a plaintext through a serial pot, so that the POS machine master key downloading safety is improved.

The invention relates to a division and frame extraction method for a video stream. The method comprises the steps of S1, obtaining an m3u8 file comprising TS slice information; S2, dividing a video into TS slices for downloading or playing according to the obtained TS slice information; S3, obtaining and updating a TS slice list, judging whether a division or frame extraction instruction exists or not, entering a step S4 if the division instruction exists, and entering a step S5 if the frame extraction instruction exists; S4, positioning and extracting a TS list corresponding to a division video, carrying out recombination to obtain a new m3u8 file; and S5, positioning time points of the image frames in the TS slices, and extracting the image frames. According to the method, an HLS (HTTPLive Streaming) live broadcast and on-demand video frame extraction and video division function is realized; the reuse of a live broadcast program is greatly improved; the viewership of users is increased; video screenshots are shared to friends through social platforms such as wechat; and the experience of watching the program is improved.

The invention provides a method for sharing a multi-people session file based on instant messaging. The method comprises the steps of obtaining a message pulling request through a multi-people session dialog box; pulling a corresponding message based on the message pulling request; obtaining a file identifier in the message and providing a file downloading entrance in the multi-people session dialog box based on the file identifier; and downloading a file corresponding to the file identifier through the file downloading entrance. By adopting the method, a user who changes a device also can download the file through the multi-people session dialog box, so that sharing of the multi-people session file is realized. In addition, another method for sharing the multi-people session file based on the instant messaging as well as a device and a system for sharing the multi-people session file based on the instant messaging are also provided.

The invention discloses a resource downloading control method and device and a terminal. The resource downloading control method comprises the steps of determining a stage downloading amount of a target resource in a current downloading stage; when the stage downloading quantity reaches a first preset downloading quantity, acquiring actual downloading time corresponding to the stage downloading quantity; determining target downloading time corresponding to the stage downloading quantity according to the current network speed and a preset speed limiting target; determining sleep time of a sleepstage according to the target downloading time and the actual downloading time; and entering the dormancy stage according to the dormancy time, and suspending downloading of the target resource in the dormancy stage. According to the method and the system, the target resources are downloaded more quickly within a limited speed range at a client with relatively small flow fluctuation.

The embodiments of the present invention provide a reconfigurable optical add/drop multiplexer and belongs to the communication technological field. With the reconfigurable optical add/drop multiplexer of the invention adopted, a problem that an existing ROADM has high polarization sensitivity to input optical signals can be solved, and problems such as increase in optical path complexity and insertion loss with the increase of dimensions can be solved. The reconfigurable optical add/drop multiplexer comprises N input ports, N output ports, M upload ports, and M download ports; each input portand each upload port are connected with one first polarizer; each output port and each download port are connected with one second polarizer; the first end of the first polarizer is connected with the second end of the first polarizer, so that a loop comprising the first polarizer can be formed; the first end of the second polarizer is connected with the second end of the second polarizer, so that a loop comprising the second polarizer can be formed; an annular waveguide array exists between a loop LIi and a loop LOj; and a second loop waveguide group exists between the loop LIi and a loop LDk.

A method for processing the data information of mobile communication equipment under wireless application protocol (WAP) includes a request step for sending a request for wireless transmission of data to HTTP server, a receiving step for receiving the data transmitted by HTTP server, and a processing step for processing the data to obtain original data.

The invention provides a method for remotely updating a DSP program. The method updates the DSP program through CAN communication. According to the method, a complete CAN communication updating program protocol is adopted, it is guaranteed that the program is updated reliably and rapidly, meanwhile, it is guaranteed that abnormal events are processed, and the error correction capacity of the updated program is improved; the maintenance performance of the equipment in the field debugging stage and the final application process can be greatly improved, and the method has huge advantages especially under the conditions that the installation environment of the target equipment is severe and the cost of independently arranging a maintenance interface for the target equipment is high.

The embodiment of the invention provides an FAO log transmission method and an FAO system, vehicle-mounted VOBC equipment uploads a first log file to a log server after a first-level fault occurs in atrain, and the first log file comprises a log generated at the first moment when the first-level fault occurs. A worker can timely check the first-level fault of the train through the first log fileprovided by the log server. The first log file is stored in the log server in time, so that after the train has the first-level fault, waiting for the train to download the log is not needed, the first log file can be downloaded only through the log server, the first-level fault can be checked in time, and normal operation of the train is guaranteed.

The invention provides an intelligent contract deployment detection method, which is applied to the technical field of block chains. The method comprises steps of obtaining an intelligent contract mirror image uploaded by a user through an intelligent contract warehouse, verifying the intelligent contract mirror image, and storing the intelligent contract mirror image in the intelligent contract warehouse under the condition that the verification is passed; obtaining a target intelligent contract mirror image from the intelligent contract warehouse to the local through the intelligent contractdeployment contract, verifying the target intelligent contract mirror image, and installing and operating the target intelligent contract mirror image under the condition that the verification is passed; detecting the deployed target intelligent contract mirror image through the intelligent contract detection contract, and generating warning information under the condition of determining that thedeployed target intelligent contract mirror image is tampered; and returning the warning information to the alliance member client. The method is advantaged in that distribution and installation efficiency of the smart contract can be improved, and security of the smart contract in installation, deployment and operation can be improved.