10results about How to "Reliable conversion" patented technology

This invention discloses a differential VGA signal decoding and display device, relating to the display field. It includes a signal input module, an ESD protection module, a differential receiving module, a synchronization separation module, an image decoding driver module, a display module, an audio processing module, and a control module. These modules are interconnected and work together to decode, process, and display differential VGA signals. This differential VGA signal decoding and display device solves the problems of short transmission distance, weak anti-interference capability, limited resolution, and high power consumption associated with traditional VGA interfaces. It also achieves full compatibility with traditional VGA devices, integrating audio processing, local playback, intelligent signal enhancement, and remote monitoring and management functions. It achieves reliable conversion from analog to differential signals, supports high-definition display, and has a transmission distance of up to 50 meters, while maintaining full compatibility with traditional VGA devices. This technology is particularly suitable for professional fields such as industrial automation and medical imaging, meeting the diverse display and intelligent operation and maintenance needs of professional scenarios.

The present application relates to the field of integrated circuit technology, and provides a pulse trigger type level shift circuit, which comprises a double pulse current generating circuit, a high-low level shift conversion holding circuit, a high voltage domain output shaping filter circuit and an RS flip-flop connected in sequence. The double pulse current generating circuit generates a short double pulse current signal in response to a jump edge of a low voltage domain input signal; the high-low level shift conversion holding circuit combines the current signal with the input signal to generate a complementary pulse voltage signal in a high voltage domain; the shaping filter circuit shapes and filters the pulse voltage; and the RS flip-flop finally latches the logic state and outputs a stable high voltage domain signal without glitches. The present application generates an extremely short pulse only when the signal jumps by means of pulse current trigger, eliminates the static current path, and has low static power consumption. Meanwhile, the pulse driving is used to realize fast level inversion under high voltage difference, and the input signal driving capability requirement is low, so that the high speed and low power consumption characteristics are taken into account.

The utility model provides a clothes rail and a wardrobe, which comprise a hanging rod, swing arms connected to two longitudinal ends of the hanging rod, a rotating body connected to the swing arms and a rotating seat arranged on a top plate of a wardrobe body, and the rotating seat is suitable for supporting the rotating body so as to rotatably install the hanging rod in the wardrobe body. One of the rotating seat and the rotating body comprises a limiting convex tooth, the other one of the rotating seat and the rotating body comprises at least one limiting groove, the limiting convex tooth is clamped into the limiting groove to realize circumferential limiting between the rotating seat and the rotating body, and when the limiting convex tooth is clamped into at least one limiting groove, the swing arm is parallel to the top plate. Through the cooperation of the swing arm, the rotating body and the rotating seat, the clothes rail can be quickly and reliably switched between a storage state and a use state, and the space utilization rate is improved.

This invention discloses a three-dimensional assembly method for ultra-large span double-layer steel truss bridges, including: setting two rows of steel piers according to the camber of the jig and preventing settlement; using a gantry crane with special clamps to achieve the horizontal and vertical conversion of the truss segments; assembling the first segment in the order of lower bridge deck, side trusses, and upper bridge deck; subsequently, matching and welding the mother segments in the same order; pre-setting vertical anti-deformation during assembly, and welding from the middle section to both sides; uniformly installing anchor pipes after the completion of the large segment assembly in a single round; setting three quality control points during assembly to check the total length, side curvature, truss width, diagonal difference, camber, and anchor point spacing; after passing the test, disassembling and removing the jig, retaining the mother segment for the next round. This application controls welding deformation and cumulative alignment error through multi-segment continuous matching assembly and anti-deformation pre-setting; the subsequent installation of anchor pipes avoids collisions and ensures anchor point accuracy; setting the jig according to the camber and re-measuring in rounds achieves a reliable transition from stress-free to stress-loaded installation.

This application provides a computer vision-based gesture recognition system, method, device, and medium. For each occluded keypoint, based on a pre-defined spatiotemporal graph model of the target object's hand keypoints, a graph convolutional network is used to extract spatial features of keypoints with high detection confidence in the spatial neighborhood of the occluded keypoint and temporal series features with high detection confidence in historical frames before occlusion. This yields a spatiotemporal collaborative attention map for guiding information completion. Based on the spatiotemporal collaborative attention map, feature propagation and aggregation are performed from the keypoints with high detection confidence to the occluded keypoints to obtain the completed feature representation of the occluded keypoints. The completed coordinates of the occluded keypoints are then output, generating an occlusion-resistant keypoint sequence for the target object's hand region. Based on this occlusion-resistant keypoint sequence, the gesture category of the target object is identified. Using the scheme of this application, robust gesture recognition against occlusion can be achieved.

The invention relates to the technical field of laboratory equipment, in particular to a fresh air adjusting system for a clean room. Comprising air supply devices distributed at a ceiling of the clean room in an array mode, each air supply device comprises a shell, a draught fan unit, an air filtering unit and an airflow distribution unit, the draught fan units, the air filtering units and the airflow distribution units are sequentially arranged in the shells from top to bottom, each airflow distribution unit comprises a hollow sleeve, and each hollow sleeve is provided with a bottom air outlet and an annular side air opening. The flow guide cone is provided with a hollow channel and a flow guide slope, the flow guide cone is composed of a plurality of valves, the valves can swing in the radial direction around the lower connecting points of the valves, and an adjusting assembly used for driving all the valves to be synchronously unfolded outwards is arranged at the bottom of the sleeve. Through the annular backflow layer and the adjustable airflow distribution unit, dynamic switching between a composite flow field and vertical laminar flow is achieved, closed-loop circulation and distribution as required of clean air are completed, and global uniformity and process area stability are both considered.

The invention discloses a process and a system for producing silicon dioxide micro powder by a wet method. The process comprises the following steps: preparing a glue solution by using pure water and chemical polymer glue accounting for 0.1-1% of the solution; mixing silicon dioxide powder with D50 of 0-8 [mu] m with the glue solution to prepare slurry with the solid content of 5-70%; carrying out stepped defoaming treatment on the slurry by adopting a stepped vacuum standing defoaming device; and finally, carrying out spray drying on the defoamed slurry to obtain the product. The stability and formability of the slurry are guaranteed from the source through the specific polymer glue solution; by means of the stepped defoaming system integrating primary buffer tank coarse defoaming, secondary vacuum tank deep segmentation defoaming and tertiary surge tank undisturbed storage, various bubbles from the millimeter level to the submicron level in the slurry are efficiently removed, the defoaming problem of the high-solid-content slurry is thoroughly solved, the treated slurry is subjected to spray drying, and then the slurry is subjected to spray drying, so that the high-solid-content slurry is obtained. The silicon dioxide micro powder with regular particle morphology, narrow particle size distribution, good fluidity, large apparent density and excellent batch consistency can be obtained, and the high-end application requirement is comprehensively met.

The application relates to a parameter configuration method and device based on a measurement and control task and a computer device. The measurement and control task of a satellite measurement and control system is acquired, and a high-level task intention of the measurement and control task is accurately and reliably converted into a bottom-layer control instruction executable by the device. In this process, only parameters need to be adjusted in a high-level macro, and the parameters are automatically inherited to all subordinate satellites, so that repeated operations are avoided, parameter management complexity is reduced, dynamic parameter adaptation in a task execution process is realized, and flexibility is enhanced. Moreover, an independent macro does not need to be created in advance for each task, and a macro explosion problem is avoided. Through closed-loop verification, the reliability and controllability of measurement and control task execution are improved.

The invention discloses a full-automatic filling device for can production, and belongs to the technical field of can filling, the full-automatic filling device comprises a can body conveying mechanism, and further comprises a movable filling mechanism arranged above the can body conveying mechanism and used for periodically executing lifting motion to perform continuous and stable filling; the blocking and separating mechanism is arranged below the movable filling mechanism, the blocking and separating mechanism is triggered to be opened when the movable filling mechanism descends to execute filling, and the blocking and separating mechanism is automatically closed when the movable filling mechanism completes filling and ascends to reset, so that an outlet of the movable filling mechanism is isolated; therefore, according to the blocking and separating mechanism, before filling is started and after filling is finished, the multiple blocking pieces are closed under the action of the torsional spring, the filling nozzle is isolated from the conveying belt, any liquid possibly remaining or dripping from the nozzle is directly intercepted and stored, the possibility that the liquid drips to the conveying belt is eradicated, the production environment is improved, and the production efficiency is improved. The problem of pollution caused by drip leakage of the nozzle is solved.

The present application relates to the technical field of composite forming auxiliary materials, and particularly relates to a breathable release film and a preparation method thereof. The method comprises the following steps: 1) dispersing a polymer and a nano functional filler in a solvent to configure an electrospinning solution; 2) performing electrospinning on a substrate layer to form a nanofiber film; 3) performing functionalization treatment on the surface of the nanofiber film, coating epoxy modified silicone oil and catalyzing curing; and 4) performing post-treatment on the cured material to obtain the breathable release film. The present application constructs a small-aperture PVDF nanofiber film through electrospinning, realizes high breathability, forms a physical anchoring functional layer on the fiber surface through self-crosslinking of the epoxy modified silicone oil, and obtains a stable low-surface-energy resin-repellent interface, thereby breaking through the contradiction between the breathability and the barrier property of traditional materials, and having excellent solvent resistance and moisture and heat aging resistance, and the comprehensive performance is significantly better than that of traditional foaming coatings and PTFE microporous films.