18 results about "Sequential switching" patented technology

The invention discloses an unloading control method and system for a hybrid direct current load device, and belongs to the field of power system control. The method is suitable for an energy consumption valve controller of the hybrid direct current load device, the device further comprises an energy consumption valve module connected with the controller, and the energy consumption valve module comprises a plurality of connected submodules. When a power grid breaks down, the energy consumption valve module is controlled to be switched to an input state according to an energy consumption valve switching signal on the power grid side; the input priority is determined according to the arrangement sequence of the current average capacitor voltage of the sub-modules in a preset control period, the sub-modules are controlled to be switched to an input mode, and at the moment, thyristors of the sub-modules are in a conducting state; when the power grid is recovered to be in a non-fault state, the energy consumption valve module is controlled to be switched to a cut-off state according to the energy consumption valve cut-off signal, and the sub-modules are controlled to be switched to a cut-off mode according to the current average capacitor voltage arrangement sequence; and after all the sub-modules are switched to the cut-off mode, the energy consumption valve module is controlled to be switched to the locked state. The problems that in the prior art, the control cost is high, and the efficiency is low can be solved.

The invention relates to a step switch unit (2) for sequentially switching currents, comprising at least two switching contacts (3) and a switching unit (4) with actuators (5) which are arranged on the switching unit (4) above the switching contacts (3) at different distances from them, wherein the switching contacts (3) and the switching unit (4) are arranged relative to each other such that when pressure is applied to the switching unit (4) in the direction of the switching contacts (3), the actuators (5) are pressed onto it and different actuators (5) touch the switching contacts (3) at different pressure forces. wherein the switching unit (4) extends at least partially over the switching contacts (3) and has a planar reset area (R) made of an elastic plastic material which exerts a force on the actuators (5) directed away from the switching contacts (3). Furthermore, the invention comprises an operating device (1) and a medical device.

The utility model provides a kind of clamping equipment for automobile die casting machining, it includes: rotating platform and the rotating drive module of driving the rotation of rotating platform, two groups of clamping devices are symmetrically provided on the rotating platform, respectively for clamping to be processed die casting and processed die casting, the rotating platform can rotate around center axis, realize the sequential switching of feeding station, main clamping station and processing station;The clamping device includes mounting plate and the several guide mechanisms, pre-clamping mechanism and main clamping mechanism of being arranged on the mounting plate, the guide mechanism is used to limit the X direction, Y direction clamping position of die casting, the pre-clamping mechanism is used to in feeding station the Z direction clamping of die casting, the main clamping mechanism is used to in main clamping station the X direction, Y direction and Z direction clamping of die casting. By the above-mentioned mode, by the above-mentioned mode, realize the step-by-step clamping action of die casting, effectively improve clamping precision, avoid die casting damage.

A packet processing apparatus includes a packet processor that processes a received packet and a buffering storage that performs storage processing on the received packet. The buffering storage includes a plurality of buffers that each stores the received packet, a selector that selects the buffer from which the packet is output, and a switching controller that controls the selector to sequentially switch buffers to be read from the plurality of buffers. The packet processor includes a distribution controller that determines a buffer of a distribution destination based on an insertion delay amount of each flow to which the packet belongs when the packet is received.

This invention discloses an optical measurement device and method for porcelain insulators, relating to the field of insulator optical measurement technology. It includes a main frame, a measurement chamber mounted on the outer wall of one side of the main frame, a calibration plate fixedly mounted on the top of the measurement chamber, and a concave support plate installed inside the main frame at a lower position. A lead screw electric linear module is mounted on the top of the concave support plate. Two structured light 3D scanners with lenses facing the calibration plate are mounted on the drive end of the lead screw electric linear module. A turntable deceleration and transposition assembly is mounted at the bottom of the measurement chamber. This invention combines dual-station parallel scanning with turntable continuous feeding. The turntable deceleration and transposition assembly enables batch pre-fixation and sequential switching of workpieces, reducing scanning deviations that occur during manual operation. This ensures that for each porcelain insulator of the same model, the scanned trajectory, data acquisition density, and overlap rate of adjacent scan bands are completely consistent.

The utility model provides a sequential switching double-shaft hinge roller type switching motion mechanism, which comprises a first shaft and a second shaft, the roller type switching motion mechanism comprises one or more groups of cams, the same group of cams comprises a first cam connected with the first shaft and synchronously rotating and a second cam connected with the second shaft and synchronously rotating, and the first cam and the second cam are connected with the first shaft and synchronously rotating. The roller type switching movement mechanism further comprises a connecting frame, and the two ends of the connecting frame are rotationally connected with the first shaft and the second shaft. One or more ferry wheels are arranged between the first cam and the second cam of the same group of rollers, and the one or more ferry wheels are used for locking or unlocking the first cam according to the control of the first cam and the second cam of the same group of cams; the ferry wheel is installed on the connecting frame in a sliding and rotating mode, and the connecting frame is provided with the ferry wheel sliding limiting groove. The transition wheel can be buffered in a self-adaptive mode, the pause feeling of the sequential switching double-shaft hinge in the locking and unlocking switching process is eliminated, and the use experience feeling is improved.

The invention relates to the technical field of forest carbon sink monitoring, and particularly discloses a random gating large-scale multichannel carbon flux monitoring system and method. Aiming at the problems of delayed accumulation of channel sampling and serious multi-gas-path residual pollution caused by sequence switching in the prior art, an innovative solution is provided. Comprising the following steps: (1) ensuring fair sampling of each channel based on a dynamic gating mechanism of a randomly generated sequence; (2) the three-axis high-speed stepping platform drives a shared terminal gas path butt joint to achieve gas path butt joint with the array control valve; and (3) a single-channel sampling time algorithm is dynamically compressed, so that a full-channel traversal period is maintained at a constant threshold value, and the time difference between channels is irrelevant to the number. A traditional fixed sequence switching model is broken through, the channel monitoring time difference is small, accurate and synchronous measurement data can be obtained, and the gas cross contamination rate is low; and channel dynamic expansion is supported, and the operation and maintenance cost is low. The technology is suitable for high-precision measurement of multi-tree forest carbon sink, and assists the implementation of the national'double carbon 'strategy.

The invention relates to gramophone product shell injection molding processing equipment which comprises a rack, an extrusion device fixedly installed on one side of the upper end of the rack and a mold closing box arranged on the other side of the upper end of the rack, an extrusion material pipe is arranged at the output end of the extrusion device, an injection mold is arranged in the mold closing box, and the injection mold is composed of a movable mold plate and a fixed mold plate. Forming cavities are formed in the opposite faces of the movable mold plate and the fixed mold plate, a sprue plate is arranged at the end, close to the extrusion device, of the injection mold installed on the mold closing box, and a telescopic air cylinder is fixedly installed at the end, away from the extrusion device, of the mold closing box; a single rotary distribution structure is adopted to complete sequence switching of multiple sprues, the driving assembly drives the annular base to rotate, multiple sets of independent hydraulic units are not needed, a control system is simplified, the number of sealing pieces and the high-pressure leakage risk are reduced, the situation that single valve needle breaks down and influences operation of equipment is avoided, valve needle-free type time sequence control is achieved, and the service life of the equipment is prolonged. And the equipment cost and the failure rate are reduced.

This invention relates to the field of automated feeding technology, specifically to a timed and quantitative mixing feeding system for a plant. The system includes a weighing feedback module, an intelligent control host, and an execution drive cabinet. The weighing feedback module collects real-time weight data from each small material tower. The intelligent control host receives feeding parameters and real-time weight data and generates control commands. The execution drive cabinet drives the main material tower's discharge mechanism and the small material tower's discharge port valves according to the control commands. This invention achieves fully automated timed and quantitative feeding through closed-loop control and can automatically complete the mixing of A / B materials according to a set ratio. The system features automatic sequence switching, anti-blockage predictive control, and automatic pipe cleaning functions, effectively solving the problems of cumbersome operation, low accuracy, error-proneness, long processing time, and easy pipe blockage in traditional manual modes. This system significantly improves the automation level, accuracy, and efficiency of plant feeding, reduces labor costs and energy consumption, and enhances operational reliability.

To ensure that the display in the designated display means is performed appropriately. [Solution] The game area is provided with various ball entry points into which game balls can be entered. The main MPU 82 measures the number of game balls that enter each ball entry point and calculates a base value based on the measurement result. The calculated base value is stored in the main RAM 84, but the main RAM 84 stores multiple types of base values ​​that were calculated at different timings. These multiple types of base values ​​are switched and displayed in a predetermined order each time the display period elapses on the first to fourth notification display devices mounted on the main control board 81. In this case, after the check display on the first to fourth notification display devices has finished, the display of the type of base value that was the target of display immediately before the start of the check display is resumed, and the display of that type of base value is executed from the time of resumption until the display period elapses.

The invention provides a display device for culture contrast teaching, and relates to the technical field of teaching devices.The display device comprises a cabinet body 1, a mounting block 2 is fixedly mounted at the top of the cabinet body 1, two mounting cavities 201 are formed in the top of the mounting block 2, and a storage cavity 103 is formed in one side of the cabinet body 1; and the display assembly is arranged in the storage cavity 103. According to the display device for teaching, through the arrangement of the display assembly, lifting, rotating and one-by-one switching shooting of a plurality of culture comparison objects can be achieved, students can conveniently observe different culture objects, teaching intuition and culture cognition depth are improved, through the arrangement of the expansion assembly, a hidden expansion blackboard can be rapidly unfolded, and teaching efficiency is improved. An additional writing area is provided to support parallel explanation of double-culture contents, the classroom comparative analysis capability and the space utilization efficiency are enhanced, and meanwhile, through arrangement of a spring limiting block, a magnet and a magnet strip, the mounting plate is conveniently limited.

Disclosed is a bicycle transmission ratio changing system comprising bicycle transmission, and a control unit configured to change the bicycle transmission according to an shift sequence. The shift sequence includes a synchronous shift step of synchronously changing the transmission ratio of a first transmission and the transmission ratio of a second transmission; and a non-synchronous shift step of selectively changing either the transmission ratio of the first transmission or the transmission ratio of the second transmission. The shift sequence includes at least the lower of Nor M−1 synchronous shift steps, wherein N corresponds to the number of different transmission ratios of the first transmission and M corresponds to the number of different transmission ratios of the second transmission.

Provided is a sequential switching dual-shaft hinge roller-type switching motion mechanism, comprising a first shaft (11) and a second shaft (12). The roller-type switching motion mechanism comprises: one or more sets of cams (21, 22; 23, 24), each set of cams (21, 22; 23, 24) comprising first cams (21, 23) connected to and rotating synchronously with the first shaft (11) and second cams (22, 24) connected to and rotating synchronously with the second shaft (12); and further comprises connecting frames (41, 42), two ends of the connecting frames (41, 42) being rotatably connected to the first shaft (11) and the second shaft (12). One or more transition wheels (3) are provided between the first cams (21, 23) and the second cams (22, 24) of one set of cams, and one or more transition wheels (3) are configured to be controlled by the first cams (21, 23) and the second cams (22, 24) in one set of cams (21, 22; 23, 24) to lock the first cams (21, 23) or unlock the first cams (21, 23). The transition wheels (3) are slidably and rotatably mounted on the connecting frames (41, 42), and the connecting frames (41, 42) are provided with sliding limiting grooves (5) for the transition wheels (3), in order to adaptively cushion, so as to eliminate the sense of jerking when the sequential switching dual-shaft hinge switches between locking and unlocking, thereby improving the user experience.

The application relates to the technical field of precision detection, and discloses a detection method and system for the precision of a voltage sensor and a storage medium. The method comprises the following steps: through a closed-loop measurement and control system composed of a withstand voltage instrument, a detection and calibration instrument, a relay control board and computer terminal automatic test software, automatic testing of all voltage test points of all poles is completed at one time; the steps comprise the following steps in sequence: communication handshake confirmation, automatic generation of a test script, sequential switching of the relay control board, standard voltage output of the withstand voltage instrument, high-speed sampling of the detection and calibration instrument, stable determination based on instantaneous curvature, double-filter amplitude estimation of Kalman and sliding average, calculation of ratio difference and angle difference, encrypted saving of test records, and determination of overall qualification based on maximum error. The application realizes rapid batch detection with high precision, the whole process is free of manual intervention, and data can be digitally traced.

The invention discloses an electrical porcelain insulator optical measurement device and method, and relates to the technical field of insulator optical measurement, and the device comprises a main frame, a measurement chamber installed on the outer wall of one side of the main frame, a calibration plate fixedly installed at the top of the measurement chamber, and a concave support plate installed at the lower position in the main frame. A lead screw electric linear module is installed at the top end of the concave supporting plate, two structured light three-dimensional scanners with lenses facing the calibration plate are installed at the driving end of the lead screw electric linear module, and a rotary disc speed reduction transposition assembly is installed at the bottom of the measuring chamber. Double-station parallel scanning and rotating disc type continuous feeding are combined, batch pre-fixing and sequence switching of workpieces are achieved through the rotating disc speed reduction and transposition assembly, scanning deviation existing in the manual operation process is reduced, and therefore for each electric porcelain insulator of the same model, the working efficiency is improved, and the working efficiency is improved. And the scanned track, the data acquisition density and the overlapping rate of adjacent scanning bands are completely consistent.

Embodiments of the present disclosure relate to contactor assemblies that include a sacrificial pole for improved current break performance. In a particular embodiment, a contactor assembly is disclosed that includes one or more main poles configured to conduct electrical current and a sacrificial pole configured to remain non-conductive during normal operation and to conduct current during a current interruption event.

The invention relates to a multi-pipeline rapid hot and cold circulation mold for injection molding, which belongs to the technical field of injection molds, and comprises a movable mold and a fixed mold with multiple pipelines, and an auxiliary machine for switching media. The multi-channel switching valve set is arranged on the auxiliary machine outside the mold, intelligent sequential switching of three media of steam, circulating cooling water and compressed air in the same pipeline of the mold is achieved, no switching structure is needed in the mold, the mold design is greatly simplified, and the manufacturing cost is reduced.

The invention relates to the technical field of rolling bearing manufacturing, and discloses a high-precision angular contact lead screw bearing manufacturing method which comprises the steps that according to a grinding wheel rotating signal, sequential switching of cooling modes is conducted on the same micro-area of a workpiece through two independently-controlled nozzle channels, so that the micro-area is in one acting period of a grinding wheel, and the working efficiency of the grinding wheel is greatly improved. According to the method, heat generated by grinding is used for completing instantaneous austenitizing in sequence, then subsequent heat flow is used for conducting in-situ tempering, and quenching quenching is conducted through an atomizing medium in the middle, mechanical forming and surface structure modification are integrated into a space-time unified single working procedure through two-time utilization of heat energy of one-time grinding, and the machining efficiency is improved. A method for replacing a traditional forming and heat treatment separation process is provided, and an endogenous forming, namely a stable physical state, is provided for the bearing raceway, so that the long-term dimensional stability of the bearing is improved, and the service life of the bearing is prolonged.