34results about How to "Reduce the number of handshakes" patented technology

The invention discloses a method and system for long connections based on a router level. The method includes the steps that in a local area network based on a router, access request sent by multiple terminals are received, and at least one long connection request is generated and sent to a server; after the server responds to the long connection requests and establishes the long connections, protocol fit processing is conducted on the access requests sent by the terminals, the access requests are sent to the server through the long connections, and request data fed back by the server are received through the long connections; the number of the access requests of the terminals is monitored, and in combination with the transmission capacity of the established long connections, the number of the long connections is controlled. The method and system solve the problems that in the environment of the local area network based on the router, the long connections are established through the terminals, unified communication management is not available, and the router can only establish short connections.

The invention provides a safety channel establishment method, and a data protection method and a safety channel key updating method thereof. When executing the establishment of handshake flow of the safety communication channel, a terminal and a server side check whether the safety communication channel is successfully established and a key is unchanged, and checks whether the certificate of the opposite side is cached; if related data is cached, the transmitted data and flow during the handshake flow of the two parties can be reduced, so that the purposes of shortening the time for establishing the safety communication channel for the two parties aiming at the packet domain communication characteristic of a mobile communication network and under the conditions of ensuring the data safety during the data communication of the terminal and the server side can be achieved, and the purpose of having no need of always maintaining TCP chain between the two communication parties can be achieved.

The invention discloses a secure transmission method using time-varying incidental information flow as key information, which uses binary codes for transmitting data flow; in addition, in the sender data processing procedure, an algorithm generator uses the time-varying incidental information for generating a time-varying encrypted factor, the logical operation of the time-varying encrypted factor and the original data flow to be sent is carried out to generate the encrypted data flow, and the encrypted data flow and the time-varying incidental information are combined in a specific mode to form and send information data flow; a receiver receives the information data flow, detects the time-varying incidental information in the information data flow, separates the time-varying incidental information from the encrypted data flow, and uses the algorithm generator for generating a time-varying decrypting factor according to the time-varying incidental information; and the logical operation of the time-varying decrypting factor and the encrypted data flow is carried out to obtain the original data flow. The method has no need of strict synchronization, can achieve the asynchronous receiving, can reduce the handshaking times, improves the communication efficiency and has better safety.

The invention discloses an intelligent door lock secret key updating method and system and a computer storage medium. The method comprises the steps that a secret key updating command issued by a cloud server is received, the secret key updating command comprises a new secret key encrypted through an old secret key, and the old secret key is a default secret key agreed in advance or a secret key used by an intelligent door lock in the last updating process; and a new key is acquired and stored, an old key is backed up and a test request encrypted by using the new key is sent to the cloud server, so that the cloud server successfully decrypts the test request and then starts the new key. According to the technical scheme provided by the invention, the handshake times of the intelligent doorlock and the cloud server can be reduced by using a double-key mode, a communication handshake mechanism between the intelligent door lock and the cloud server is optimized, and the communication efficiency is improved.

The application discloses a cross-wide area network (WAN) data return method and device, computer equipment and a storage medium. The method includes the following steps: adding a pipeline class to ajava package class called by a Hadoop server, and constructing a function for inputting a Redis cluster object and a password in the pipeline class; enabling the pipeline class to synchronously read data to be returned in the Hadoop server to obtain Redis cluster information; obtaining current Redis cluster information through a pool object; and if the current Redis cluster information is different from the Redis cluster information at the previous moment, submitting the data to be returned stored in the pipeline class to a Redis database server according to the current Redis cluster information. According to the method, only when the Redis cluster information is updated, the pipeline class submits batch data to the Redis database server, and thus the number and time of handshakes of a remote TCP protocol can be reduced, and the data return efficiency can be improved.

The invention provides a simulation method, wherein implementing a single download task comprises: a simulator receives a start-to-download instruction; the simulator sends all object instructions interrelated to implementing the download task to an object board according to the start-to-download instruction; after receiving the all interrelated object instructions, the object board implements the instructions item by item. The simulation method of the invention firstly transfers the all object instructions implementing the single download task, then uses the object board to store and implement the instructions item by item to complete to download the data, thereby reducing the times of handshaking between the simulator and the object board, shortening the download time, and also improving the simulation efficiency and saving the bandwidth.

The invention relates to a client software network optimization method and system and a storage medium. The optimization method comprises the steps: establishing long connection between client software and a proxy node in a server, and forwarding a network request of the client software to corresponding service nodes through the proxy node, wherein the proxy node is connected with all the servicenodes in the server. Proxy nodes are added on the basis of the conventional architecture and direct interaction between the client software and the server is organized, so that the client software isonly in long connection with the proxy node, the network request is forwarded to each service node through the proxy node, the problem of repeated reconnection between the client software and the server is avoided on the basis of not modifying the original service logic, the data transmission efficiency is improved by reducing the handshake frequency, the optimization of the network performance iscompleted, and the user experience is improved.

The invention relates to a software testing method, in particular to an engine control software testing method, and solves the technical problem that the data throughput capacity of an RS-232 serial port communication mode cannot meet the rapid data access requirement due to the fact that the baud rate cannot be increased under the condition that the serial port communication mode is ensured by an existing engine software testing method. Comprising the following steps of: writing a keyword in a Workitem.log file, supplying power after communication between test equipment and a product is established, executing a keyword instruction at the moment, running content indicated by the keyword, finishing checking whether the Wkresut.log file exists or not, and writing 'Done!' if the Wkresut.log file exists, and the like. Different functions are operated according to actual conditions, each function corresponds to a respective keyword, mode switching and data packaging downloading are carried out on instructions in a product, the number of handshake times between communication and the product is reduced, the whole access and transmission efficiency is improved by properly reducing data traffic on serial port communication, and the service life of the product is prolonged. Therefore, the purpose of improving the communication transmission efficiency of the RS-232 serial port is achieved.

The invention provides a high coding opportunity bidirectional access method based on cache information assistance. The method is mainly applied to a two-hop relay network, and mainly comprises a coding matching stage for sending a control message and a data transmission stage after the matching; three mechanisms as follows are adopted: four handshakes are changed as twice handshakes, the cache information assistance improves the coding opportunity, and the virtual cache area is updated by modifying a frame format; the first new mechanism and the second new mechanism are worked at the coding matching stage, and the third new mechanism is worked at the data transmission stage. By using above three new mechanisms, the new access method provided by the invention can reduce unnecessary expenditure in the unnecessary message interaction process, the coding opportunity can be effectively improved, thereby realizing the aims of reducing the data frame average delay and increasing the networkthroughput by sufficiently utilizing the network coding technology on the whole.