38results about How to "Improve data communication efficiency" patented technology

The invention discloses a method and a device for accessing a cache. The method comprises the following steps of dividing a cache region of the first process for providing data to the second process into a plurality of cache blocks, when a target process initiates an access request to the cache region; selecting a target cache block from a plurality of cache blocks of the cache region, judging whether the target cache block is in a locked state or not; if the target cache block is in the locked state, executing the step 2; if so, the target cache region does not need to be switched to the non-locked state all the time; another cache block can be selected from a plurality of other cache blocks to serve as a target cache block; and returning to execute the step of judging whether the obtained target cache block is in the locked state or not until the target cache block which is not in the locked state currently is found from the cache blocks, so that a plurality of processes respectivelyaccess different cache blocks in the same cache region at the same time, and the inter-process data communication efficiency is improved.

The invention relates to a flat machine numerical control system based on a field programmable gate array (FPGA) high-speed communication method. The flat machine numerical control system comprises a management layer with an ARM module, a coordination layer with a DSP module and an FPGA module and an execution layer, and is characterized in that a dual-port RAM high-speed communication module is arranged between the ARM module and the FPGA module and is provided with independent valid read / write pins. The invention has the following obvious substantive characteristics: the dual-port RAM high-speed communication module is arranged and is provided with the independent read / write pins, so that signals of each layer are matched and are prevented from holding time and conflicting; and the datacommunication efficiency between the management layer and the coordination layer is improved by a method of adopting abundant logical resources in the FPGA module to realize dual-port RAM high-speed communication in a software programming mode, thus the weaving efficiency is improved. By adopting the control method of the control system, the communication speed is improved, and the control systemhas the characteristics of strong anti-interference performance, good generality and the like.

The embodiment of the invention discloses a direct-connected communication control method, a device and a mobile terminal. The method comprises the following steps: acquiring at least one data interaction record of a data interaction task between a first peripheral device and a second peripheral device by an AP; determining a data interaction reference parameter of the data interaction task according to the at least one data interaction record; and sending a direct connection control instruction to a communication controller when detecting that the data interaction reference parameter satisfies a preset condition, wherein the direct connection control instruction is used for indicating the communication controller to start a target direct-connected communication switch. The method disclosed by the embodiment of the invention is in favor of improving the data communication efficiency of the periphery device of the mobile terminal.

The invention relates to the embedded technology filed, particularly to dual-core namely the ARM and the DSP data communication method for an embedded type numerical control system. The RAM (Random Access Memory) of the embedded type numerical control system is divided into four parts namely a LINUX operating system for the ARM terminal, a BIOS pseudo operating system for the DSP terminal, communication sharing and communication softwares; the communication sharing is used for storing communication data; initialization is performed on the ARM terminal and the DSP terminal to set up a shared memory pool, set up critical section management objects which enable the ARM terminal and the DSP terminal mutually exclude read-write communication data and set up a handshake protocol; when the ARM terminal or the DSP terminal secretly accesses a shared memory area by utilizing a mutual exclusive lock and obtains the mutual exclusive lock, read-write is directly performed on the communication data, and the mutual exclusive lock is released when the read-write is achieved. According to the dual-core data communication method for the embedded type numerical control system, the hardware costs are reduced due to the fact that extra hardware chips are not used; software transportation costs are reduced due to the fact that a third-party software can be transported without modification; block data zero copy is achieved and data communication efficiency between multicores are improved due to the fact that the data transmission is achieved through communication sharing and messages between cores.

The invention relates to a cross-server data communication processing method, which includes five steps of constructing a global management server, configuring a database server for data resources, setting a data communication protocol, client authentication and data communication processing. On the one hand, the present invention can effectively simplify the network structure and avoid the disadvantage that data needs to be stored and backed up on different servers in the process of cross-server data access, thereby effectively reducing the cost of data communication operation and management. On the other hand, data can be accessed across servers Carry out direct communication, thereby greatly improving the data communication speed and data communication reliability. At the same time, according to the frequency of cross-server query data, range type and other information, the trust degree synchronization management of cross-server data access can be carried out, so as to further It improves the security and reliability of data management during cross-server communication, and also helps to further improve the data communication efficiency of cross-server data access operations.

The embodiment of the invention discloses a communication method and device. The method comprises the steps that a processor receives a data communication request, determines a switch identifier of a target switch circuit according to the first identifier and the second identifier, sends an enabling instruction to a communication controller when it is detected that a preset switch identifier set comprises the switch identifier and sends direct connection communication instructions to a first periphery device and a second periphery device. According to the embodiment of the invention, the data processing pressure of the processor of a mobile terminal can be mitigated, and the data communication efficiency of the periphery devices of the mobile terminal is improved.

The invention relates to a tethered UAV data distribution method, device, computer equipment and storage medium. The method includes acquiring the requirements for tethered UAV airborne monitoring; dividing the tethered UAV airborne monitoring system into several module; define the subject data structure and communication content of the module; perform data distribution according to the subject data structure and communication content. The invention utilizes the message bus to unify the data sharing interface between the modules, which can facilitate later maintenance and expansion. When a data update occurs, it will quickly locate the address of the data cache in combination with the topic name of the module, and the relevant subscribers will obtain the updated data in the address of the data cache through the message bus, improving the efficiency of data communication between modules, and realizing the Airborne monitoring is an independent subsystem and has an efficient data transmission method to improve the convenience of maintenance and expansion of the entire UAV system.