40results about How to "Guaranteed real-time synchronization" patented technology

The invention provides a synchronization method for business data of an intelligent terminal and a cloud server. The method comprises the following steps: detecting whether a version of the business data of the cloud server is updated, and determining whether to execute a synchronous update operation according to an inspection result; when the version of the business data of the cloud server is updated, desynchronizing the version of the business data of the cloud server by a thread turned on at a background of the intelligent terminal, and presenting new business data and a new data characteristic value mapping file by a business application program; accessing the cloud server by the intelligent terminal, storing, uploading and acquiring the new business data and the new data characteristic value mapping file by the cloud server, detecting whether the new business data and the corresponding data characteristic value mapping file thereof exist locally by the intelligent terminal; inspecting whether a version number of the data characteristic value mapping file of the cloud server and the intelligent terminal, a hashed value of a relative path of the file and an MD5 value of the file are equal; and selecting any one synchronous updating mechanism, downloading the business data from the cloud server and synchronously updating local business data of the intelligent terminal.

The invention relates to a synchronous control system for a push claw device, a center box device and an automatic machine in a capsule machine. The output terminal of the main control unit is connected with a main motor control circuit, and the main motor drives the automatic machine to run through a transmission device; the synchronous control unit passes a coding The speed data of the main motor is collected by the controller, the synchronous control unit controls the claw motor and the center box motor respectively through two servo drivers, and the main control unit communicates with the synchronous control unit; the method is: according to the set parameters, the synchronous control unit generates The cam table; the synchronous control unit reads the encoder data; if the automatic machine driven by the main motor is in place, the cam table is started, and the encoder data is cleared; the claw device operates synchronously, and the center box device operates synchronously; after the synchronous operation, it returns to Read encoder data step. The invention improves the asynchronous and easy-to-collision faults existing in the original production line, reduces the mechanical damage caused by the collision, ensures the normal operation of production, and reduces the maintenance cost.

The invention relates to a control plane deflection apparatus of a free-flight model. The control plane deflection apparatus comprises control plane assemblies, a rotating shaft block, a compression spring, and a rudder deflection control block. A left control plane and a right control plane are connected to a mounting hole of the same rotating shaft block by respective rudder shafts and bosses arranged at the tails of the rudder shafts and are screwed into circular holes of the rotating shaft block by bolts to fix the control planes and the rotating shaft block so as to prevent shedding of the control planes. The control plane assemblies and the rotating shaft block can rotate around the axes of the rudder shafts. A rotating shaft block angle control plane is arranged at the rotating shaft block; and a rotating shaft block blind hole is formed in the rotating shaft block. The compression spring is arranged in the rotating shaft block blind hole; and one end of the compression spring is abutted against the bottom of the rotating shaft block blind hole and the other end is fixed. A rudder deflection control plane is arranged at the rudder deflection control block; and the control plane deflection angle of the control plane can be adjusted by adjusting the height of the rudder deflection control plane. According to the invention, problems of small size of the wind tunnel free-flight model model and large difficulty of mechanism designing as well as a problem of difficult control plane deflectin triggering and angle controlling of the model during the wind tunnel free-flight support-free process can be solved.

The present invention relates to a redundancy control system and method suitable for direct current transmission, and a management control device. The management control device comprises a control unit, a trigger / return check optical module and at least two communication modules. The trigger / return check optical module is used for connecting power electronic switches. Each communication module isused for connecting a valve control unit and a redundancy management control device. The control unit has a selection function, and can select the correct and fastest trigger signal from trigger signals from different communication channels. The system includes the valve control unit, at least two of the above-described management control devices, and the power electronic switches coupled to eachof the management control devices. The method monitors communication channels of trigger signals received by the control units of the power electronic switches, and timely selects the first-received correct trigger signal as a trigger instruction to be output according to the reception completion flag bit and the communication check bit. The invention improves the stability of the system operation, the control reliability and the error correction capability of the system.

The present invention relates to the communication field, and discloses a data synchronization method and device of a forwarding board, which are used to improve the execution efficiency of the data synchronization process and reduce communication overhead between boards. Data related information, and when the specified timing is reached, the information stored in each linked list node in the business data linked list is sequentially read to obtain the corresponding business data, and sent to the standby forwarding board for data synchronization. Due to the high access efficiency of the business data linked list, the real-time synchronization of business data is guaranteed between the main forwarding board and the standby forwarding board, and the smooth transition of the business is guaranteed when the main forwarding board and the standby forwarding board are switched. The service reliability of the communication equipment is improved.

A data transmission method based on multi-network communication, the method comprising: obtaining data to be transmitted in a video private network that requires multi-network interaction; using gatekeeper technology to process the data to be transmitted to generate a first data file; The defined remote procedure calls RPC communication, and transmits the data processing request carrying the first data file to the second electronic device on the side of the public security network, wherein the self-defined RPC communication is used for remote communication between different networks; Using self-defined RPC communication to receive the second data file returned by the public security network after the second electronic device processes the first data file; using gatekeeper technology to process the second data file to obtain the final data file. The present invention also provides a first electronic device, a second electronic device and a computer-readable storage medium. The invention can adopt self-defined remote procedure call RPC communication to carry out data transmission between multiple networks, and ensure real-time synchronization of data.

The invention provides a monitoring unit for an airborne synthetic visual guidance system, the monitoring unit includes a display module and a monitoring module; the monitoring module is used for real-time monitoring of the display module; the display module includes an alarm display sub-module and sequentially connected database, graphic generation sub-module and graphic display sub-module; the monitoring module includes sequentially connected navigation deviation calculation sub-modules, monitoring algorithm processing sub-modules and monitoring result feedback sub-modules; the graphic display sub-module is connected with the monitoring algorithm processing sub-module ; The alarm display submodule is connected with the monitoring result feedback submodule. Using instrument landing system and radio altitude information as the source of monitoring information, through real-time calculation, monitor the display information of SVGS and feed back the results to the pilot through an independent channel, improve the safety of the synthetic visual guidance display system and reduce the probability of misleading , so that the synthetic vision guidance display system can meet the airworthiness requirements.

The present invention relates to a data processing method based on cloud-edge collaboration, an edge server, a central server, and a data processing system; the data processing method includes: receiving a data request from a terminal device; parsing the data request to determine the identity of the terminal device identification and data type; call the data calculation framework according to the data type; send a data processing request to the corresponding terminal device according to the identity; receive the data calculation task sent by the terminal device; load the data calculation task according to the data calculation framework, Obtaining a calculation result; sending the calculation result to the terminal device according to the identity. The edge server of the present invention is respectively connected to a plurality of terminal devices and the central server, and can directly calculate and process in real time on the edge server according to the data request of the terminal device, without uploading to the central server, thereby reducing the storage and calculation load pressure of the central server and reducing data Transmission bandwidth usage.

The invention relates to a rehabilitation weight-loss walking training vehicle and a control method for realizing straight-line following by detecting distance, belonging to the field of medical equipment, comprising a controller and a distance sensor for detecting the distance between the weight-loss vehicle and the back of a patient; the controller comprises: A distance information acquisition module, a speed control module, and a motor drive module; the distance information acquisition module receives the real-time distance measurement value collected by the distance sensor, obtains the real-time distance value Act_dis at the current moment, and obtains the real-time distance value at the current moment and the set value through calculation. The distance difference Err_dis between the absolute distance values ​​Abs_dis; the speed control module receives the distance difference Err_dis, and uses the PID algorithm to obtain the training vehicle speed correction value Act_speed at the current moment; the motor drive module receives the training vehicle speed value Act_speed and controls the motor to make the training The car is traveling at Act_speed. The invention ensures the synchronization and real-time performance of the coordinated movement of the weight-reducing vehicle and the patient.

The present invention relates to a control method for a hybrid electric vehicle based on digital twin technology. The method first builds a hybrid electric vehicle digital twin cloud virtual model that matches a physical entity (hybrid electric vehicle) on a cloud simulation platform based on digital twin technology And the simulation working environment is configured to be consistent with the actual working environment of the physical entity, and then the digital twin cloud storage computing platform dynamically collects the physical data generated by the operation of the physical entity and the virtual data generated by the operation of the cloud virtual model in real time, and performs data analysis and fusion processing , and then compare the data processing results with the current hybrid vehicle operating data in real time and update the attribute characteristics of the cloud virtual model in real time, and obtain the corresponding optimal control strategy of the latest model based on the calibration performance of the physical entity and the current state combined with the cloud online simulation technology. The optimal control strategy is input into the physical entity to automatically change the operation control of the hybrid electric vehicle, and realize the dynamic optimal control as a whole.

The purpose of this application is to provide a method and device for realizing multi-person virtual interaction. In this solution, when one or more virtual users request to join one or more virtual rooms, one or more long connections are established between the virtual reality device corresponding to the user and the server corresponding to the virtual room, and then, Based on the long connection, provide the user with one or more data services associated with the virtual room, and based on the group corresponding to the long connection, synchronize the data information corresponding to the data service to other users in the group. Compared with the existing technology, this application reduces the time delay of interactive data and status synchronization between different users, reduces the dependence on the message system, improves the reliability of data transmission, and ensures the resources of different users in the same room through the application of long connection technology. Real-time synchronization of playback and action data, etc., enhances the experience of users using virtual reality devices for "cross-time and space" interaction.