7results 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.

The invention discloses a subreflector electric lifting assembly and an antenna, and belongs to the technical field of antennas. The auxiliary reflecting surface electric lifting assembly comprises a bottom plate, a driving motor, two reversing transfer cases, a plurality of right-angle commutators, three linear executing mechanisms and a connecting plate. A driving motor divides power into two paths through a first reversing transfer case, and one path drives a first linear execution mechanism through a first vertical right-angle reverser; and the other path sequentially passes through a first horizontal right-angle reverser and a second reversing transfer case for secondary distribution and steering, and finally drives a second linear actuating mechanism and a third linear actuating mechanism directly and respectively through a second horizontal right-angle reverser and a second vertical right-angle reverser. The three linear executing mechanisms stretch out and draw back synchronously to drive the connecting plate and the auxiliary reflecting surface to lift integrally and stably. The single driving motor is matched with the specific mechanical transmission chain, so that three-point rigid synchronous driving is realized, and the problems of inconvenience in manual lifting of the auxiliary reflecting surface of the vehicle-mounted antenna, poor synchronous precision of multiple motors and over-limit transportation are solved.

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 X-ray nondestructive testing technology, and particularly relates to a variable-diameter adaptive X-ray fluoroscopic inspection platform. It includes an inspection platform, a column, a lifting screw, and mounting bases. A downward-opening semi-circular hollow stator disk is connected between two mounting bases, and a rotor disk is rotatably mounted inside the stator disk. Radial guide grooves are formed on the stator disk, and corresponding arc-shaped cam grooves are formed on the rotor disk. Slide seats are slidably connected within both the grooves and the cam grooves. By adjusting the motor to drive the worm gear transmission, the rotor disk rotates, and the arc-shaped cam grooves push each slide seat to slide synchronously radially along the radial guide grooves, achieving multi-point synchronous diameter change from a single drive source. The X-ray source and detector are mounted on the slide seats, maintaining a positive-relative scanning configuration at all times, eliminating image distortion and detection blind spots inherent in traditional L-shaped architectures. This invention features a simple and reliable structure, adaptively adjusts the inspection aperture, accommodates both large-diameter vehicles and small-diameter vehicles, and is suitable for efficient passage of multiple vehicle types in mixed traffic.

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.

The utility model discloses a feeding mechanism capable of sharing multiple dust covers. The feeding mechanism comprises a circular vibrator, a top disc, a straight vibration feeding assembly, a blocking and placing mechanism, a vacuum suction nozzle carrying mechanism, a separating mechanism, a small bottom plate, a large bottom plate, an in-disc material shortage mechanism and a material returning groove. According to the utility model, the line width-adjustable track is used for dynamically adapting to the material distribution requirement, and the problem of low lamination separation efficiency of the traditional mechanism is solved by combining the size gradient design of the vacuum suction nozzle and pneumatic vibration active stripping; a quick model changing structure of the jig assembly supports sharing of dust covers of multiple models, and the production flexibility is remarkably improved; the feeding stability is guaranteed through rigid transmission and closed-loop material circulation of the blocking and placing mechanism, the outage rate is reduced, and the feeding device is suitable for automatic and efficient feeding of the sheet dust cover type workpieces.