4results about How to "Guaranteed synchronization accuracy" patented technology

This invention provides a signal synchronization method, system, and storage medium, relating to the field of communication technology and applicable to signal synchronization systems. The signal synchronization system includes a main control module, multiple acquisition modules, and multiple synchronization modules, which are cascaded sequentially. The signal synchronization method includes: a main control module distributing a unified reference clock and a unified reference time to the acquisition modules; acquisition modules acquiring sampled data from air signals, generating data streams based on the sampled data, and distributing the data streams step-by-step to the next acquisition module or the next synchronization module; and synchronization modules selecting at least one data stream from the received multiple data streams as the data to be synchronized and performing synchronization processing on it. This invention distributes data from each module step-by-step to the next level module, effectively avoiding the overload problem caused by centralized synchronization processing, thereby ensuring signal synchronization accuracy in complex scenarios.

This invention relates to the field of vertical milling and turning technology, and discloses a vertical milling and turning composite machining center, including a machining table, a support frame, a vertical cantilever, a drive motor, and a drive shaft. A composite machining mechanism for switching machining types is mounted on the side of the vertical cantilever; a switching mechanism for changing the workpiece's motion state according to the machining type is provided below the composite machining mechanism; a spraying mechanism for changing the coolant's application according to the machining type is provided on the upper surface of the machining table; a clamping mechanism for fixing a ring-shaped workpiece is provided at the top of the switching mechanism; the composite machining mechanism includes a sliding frame plate, with two double-toothed plates slidably connected inside the sliding frame plate. This invention utilizes the forward and reverse directions of the vertical cantilever's lifting stroke to correspond to different machining actions, improving the continuity of actions and machining efficiency, and ensuring the positional stability and synchronization accuracy of the milling cutter and drill bit near the workpiece.

This invention belongs to the field of power electronic equipment testing technology and discloses a method and system for testing, protection, and monitoring of energy storage converters based on wireless communication. The method includes: establishing local timestamps for wireless sensor nodes; using a digital twin model to predict the switching action times of power devices to generate a strong interference time window, controlling wireless communication to remain silent within the strong interference time window and transmitting data outside the window; extracting channel state information from the physical layer of the wireless signal, analyzing the spatial propagation changes of the channel state information relative to the reference state, and identifying physical environment faults inside the energy storage converter; broadcasting anomaly vectors through a distributed network among wireless sensor nodes, and triggering circuit breaker action based on the consensus voting results of multiple nodes; comparing the measured data transmitted via wireless communication with the theoretical trajectory and dynamic safety envelope interval calculated based on the digital twin model to verify the changing trend of the measured parameters and ensure the synchronization accuracy of time and the integrity of the data.

The application discloses a kind of mixed low bit quantization bistatic synchronization method, device and electronic equipment, method includes: generating LFM signal, extracting symbol bit after taking complex conjugate, as reference signal symbol bit sequence save;The echo signal received is down-converted and low-pass filtered, and baseband echo signal is obtained;The baseband echo signal and the reference signal symbol bit sequence are XORed, and the operation result is accumulated using a multi-stage pipeline structure, and the accumulation result is output;According to the accumulation result, relevant peak detection is carried out using dynamic threshold peak detection method to determine synchronization point, thereby providing a kind of double station synchronization method with high computational efficiency, strong anti-interference ability and robustness.