17results about How to "Drive precision" patented technology

This utility model provides a hinge opening and closing test fixture. The fixture table includes a fixed base, a rotating base, a fixed fixture, and a rotating fixture. Support feet are located at the bottom and rear. The fixed base mounts the fixture table, and the fixed fixture is connected to the fixed base. Hinge fixing pieces are secured with screws through fixing holes. The rotating base is connected to the fixture table via a rotating shaft, and the rotating fixture is connected to the rotating base. A clamping groove holds the hinge rotating piece, and the groove has an elastic clamping layer to prevent loosening. The fixture table contains a switching power supply, a motion controller, a servo motor, and a worm gear reducer to drive the rotating shaft. A counting sensor under the rotating base measures the number of rotations, which is displayed on the front side of the fixture table via a counter. This fixture is securely fixed, provides accurate driving and counting, is efficient and convenient, and is suitable for testing the opening and closing performance of hinges.

The embodiment of the present disclosure provides a piezoelectric ceramic capacitor driving circuit, which comprises a boost circuit, a full-bridge circuit and a boost control circuit, a voltage input end of the boost circuit is connected with a power supply voltage, a voltage output end of the boost circuit is connected with an input end of the full-bridge circuit to output a boosted voltage, the boost control circuit comprises a voltage sampling circuit, a lower tube opening detection circuit control circuit, two input ends of the voltage sampling circuit are connected with a positive phase voltage output end and a negative phase voltage output end of the full-bridge circuit respectively, an output end of the voltage sampling circuit is connected with a first input end of the lower tube opening detection circuit to output a feedback voltage, a second input end of the lower tube opening detection circuit is connected with a reference voltage, and an output end of the lower tube opening detection circuit is connected with a first input end of the control circuit. The driving circuit can drive a large load and can also improve driving precision.

The application provides a kind of escalator handrail belt speed measuring device, speed measuring device is installed on handrail belt, speed measuring device includes main unit, clamping component, speed measuring component and control component, control component is used to control the operation of speed measuring device, main unit has drive assembly, drive assembly has transmission rod and support rod, clamping component has two sets of clamping pieces, transmission rod and support rod are connected with two sets of clamping pieces, transmission rod drives two sets of clamping pieces to realize split and combined motion, clamping piece is clamped on handrail belt, speed measuring component is installed at the lower end of clamping piece, speed measuring component has support wheel and speed measuring wheel, support wheel and speed measuring wheel contact with handrail belt mounting frame, speed measuring wheel is used to measure the running speed of handrail belt;The application can realize the direct measurement of handrail belt speed, obtain continuous data of handrail belt operation, obtain the state of each point of handrail belt operation in time, which is beneficial to accurately diagnose the running state of handrail belt, and the device has the characteristics of convenient operation and high efficiency.

The utility model discloses an adjustable nozzle adjusting valve convenient to disassemble, and belongs to the field of nozzle adjusting valves. In modern industrial production, a valve rod of a nozzle regulating valve is mostly of an integral structure, needs to be integrally replaced when being locally abraded, and is high in cost and inconvenient to disassemble, the lower end of a straight-through nozzle seat is usually sealed by welding, and when internal parts are blocked or damaged, the disassembly difficulty is high. The straight-through nozzle comprises an executing mechanism, an upper valve body assembly, a lower valve body assembly, a valve rod, a valve seat, a straight-through nozzle seat and a nozzle, the upper valve body is connected with the lower valve body through a flange structure, a detachable blank cap is arranged at the bottom of the straight-through nozzle seat, the valve rod is divided into a valve element rod and a piston rod, and the valve element rod and the piston rod are connected through threads and a cylindrical pin. The actuating mechanism is composed of a pneumatic stroke film actuator and the like, and the flow can be accurately controlled in cooperation with an adjusting mechanism with a dial. According to the regulating valve, through detachable design, the maintenance time is shortened, the cost is reduced, and meanwhile accurate flow regulation and reliable operation are achieved.

This invention provides a method for compensating for lateral deviation in autonomous driving caused by tire pressure issues, comprising the following steps: Step S1, real-time acquisition of tire motion information during vehicle operation; the tire motion information includes the linear velocity and angular velocity of tire rolling; Step S2, calculation of the tire rolling radius based on the tire motion information, and determination of whether the tire pressure is abnormal using a radius iteration method, wherein the radius iteration method uses a pre-set characteristic parameter γ to represent the difference in tire rolling radius to determine whether the tire pressure is abnormal; Step S3, determination of the relationship between tire pressure and tire radius based on the tire rolling radius and characteristic parameter γ, and determination of the tire location with abnormal tire pressure; Step S4, calculation of the compensation value for the steering wheel angle based on the characteristic parameter γ.

The utility model discloses a kind of folding material mechanisms of automatic bagging machine, it includes base;First driving device, install on base, for driving lifting plate lifting;Second driving device, install on lifting plate, for driving sliding frame along front and back direction translation, sliding frame one side is equipped with vertical plate frame;Third driving device, install on vertical plate frame, for driving lifting frame lifting;Fourth driving device, for driving intermediate folding knife component front and back translation;Fifth driving device, for driving lateral folding knife component left and right translation, the utility model fourth driving device and fifth driving device are all using servo motor+screw structure, can according to bag shape size, adjust the initial position of intermediate folding knife and lateral folding knife, adjustment precision is high, parameter adjustment is convenient, in addition, about the front and back translation of sliding frame, and the lifting of lifting frame, are all using motor, gear and rack mutually coordinated structure to complete, driving is more accurate, overall action is simplified, equipment structure is stable, and practicality is strong.

The application relates to a microsphere grinding method and device based on a reverse variable-speed drive, wherein the method comprises the following steps: determining the working conditions and structural parameters of simulation and test microsphere grinding, establishing a topological model of a simulation object, and importing the topological model into a dynamics simulation software; simulation calculation is performed by using the dynamics simulation software, related data of the microspheres are obtained by comparison simulation, and whether the microsphere revolution collision phenomenon exists in the simulation result is judged; if the microsphere revolution collision phenomenon exists, a time-varying driving speed function is traced back, the time-varying driving speed function is applied to actual microsphere grinding test, finally, when the preset relatively stable revolution running conditions among the microspheres are met, a corrected time-varying function is derived, and the corrected time-varying function is applied to actual variable-speed grinding. Therefore, the problem that due to the fixed eccentricity of the grinding disc, the revolution speeds of the microspheres at different positions are different, and when multiple microspheres grind at the same time, the microspheres are prone to collision, thereby causing surface defects and size deviation and the like is solved.

The application discloses an intelligent traffic auxiliary correction method and system based on remote sensing monitoring, relates to the technical field of intelligent traffic assistance, and comprises effective point feedback and point driving correction. First, user historical eye movement and vehicle dynamic data are collected through the effective point feedback step, driving behavior concentration duration is calculated, behavior types are matched, and eye movement data occurrence rates are counted, current driving data and image recognition are combined, and the first preferred point of the user is determined; voice prompts are given and steering auxiliary force is adjusted. Secondly, historical remote sensing data are collected through the point driving correction step, invalid data are analyzed, and eye movement focus side view angle correction values are summarized; driving directions are prompted, and turning compensation force is applied. The application realizes precise driving assistance through multi-source data fusion, improves safety, adapts to different driving habits through the linkage of historical and real-time data, and improves the precision of the auxiliary system.

The embodiment of the invention discloses an equipment control method and device, electronic equipment and a storage medium. A control instruction for a target light-emitting device is received, wherein the control instruction comprises a target brightness value which the target light-emitting device needs to reach; based on the device type of the target light-emitting device, the corresponding initial maximum duty ratio of the target light-emitting device under the target brightness value is determined, and the initial maximum duty ratio is the maximum duty ratio of a pulse signal needed for driving the target light-emitting device to reach the target brightness value under the reference working state parameter; determining at least one duty ratio compensation coefficient corresponding to the target light-emitting device according to the working state parameter of the target light-emitting device; based on the duty ratio compensation coefficient, correcting the initial maximum duty ratio to obtain a target maximum duty ratio; and driving the target light emitting device based on the target maximum duty ratio and the target brightness value. Therefore, the light-emitting device can be accurately driven based on the dynamically determined duty ratio limit value, and the equipment control efficiency is improved.

The present disclosure provides a vehicle control method, device, equipment and storage medium, which can be applied to the field of automatic driving technology. The method comprises: in response to a driving service request initiated by a target vehicle to a target point, obtaining position information of the target point, lane line information and boundary point information of a target area, the target area representing a map area near the target point; generating target line segment information according to the position information of the target point and the lane line information, the target line segment representing a line segment between the target point and the starting point of the lane line; generating relative position relationship information between the target point and the target area according to the target line segment information and the boundary point information; and controlling the target vehicle to drive to the target point in the case that the relative position relationship information meets a preset condition.

The utility model discloses a mobile locomotive system with a self-adaptive connection function. The mobile locomotive system comprises a mobile locomotive and a transmission connection structure which is arranged on the mobile locomotive and is connected with a gate structure, the transmission connection structure comprises a sliding groove box fixedly arranged on the moving locomotive, a sliding block containing cavity is formed in the sliding groove box, and a vertical arc-shaped through hole communicating with the sliding block containing cavity is formed in the side face, facing the gate structure, of the sliding groove box; one end of the transmission connecting cylinder is fixedly connected to the gate structure, and the other end of the transmission connecting cylinder penetrates through the vertical arc-shaped through hole and extends into the sliding groove box body; and the annular rotating sliding block is rotationally arranged at the end, extending into the sliding groove box body, of the transmission connecting cylinder in a sleeving mode, is located in the sliding groove box body and can slide in the sliding block containing cavity. The transmission connection structure can adapt to changes of the elevation angle and the rolling angle of a gate structure, and the stability of a gate system in the opening and closing process is ensured.

The utility model discloses a kind of feeding and discharging driving mechanism of hardware machining machine, it includes driving device, including the servo motor being installed on upper support frame, linkage in servo motor's screw rod, nut seat being installed on screw rod, and adapter seat being fixed on nut seat;Transmission assembly, linkage in adapter seat, and at least one top rod is arranged along vertical direction, the up and down position of top rod and the first through hole on base plate corresponds, the utility model drives adapter seat to lift along screw rod using servo motor+ball screw mode, lever principle can also be according to, through transmission assembly cooperation stable drive top rod lifting, the parameter adjustment of servo motor is convenient, driving precision, can satisfy the high-speed operation of equipment, structure is stable, equipment service life is long, in addition, by transmission assembly respectively being set in opposite sides of adapter seat, after hardware on the chuck seat is fed and turned half a circle, it can be discharged, without waiting to rotate a circle, processing efficiency is higher.

This invention discloses a driving method and system for a transparent LCD display based on local dimming, relating to the field of local dimming technology for transparent LCD displays. The method includes: dividing the transparent LCD display into multiple driving zones and collecting the ambient light intensity of each driving zone; establishing a transparent display optical perception model; extracting a set of perception indicators; performing driving solution and outputting a combination of driving parameters for each driving zone; and executing a fusion drive of the transparent LCD display according to the multiple driving parameter combinations. This invention solves the technical problem in existing technologies where the driving of a transparent LCD display is difficult to adapt to the differences in ambient light and dynamic changes in image perception, resulting in poor coordination of display brightness, transparency, and local contrast, and insufficient driving accuracy. It achieves precise driving of each driving zone of the transparent LCD display to adapt to the needs of ambient light and image perception, improving the synergistic optimization effect of display brightness, transparency, and local contrast.

The application provides a driving circuit, a chip and an electronic device. A control port of a logic device in the driving circuit is connected with a first end of a first switch unit and a first end of a second switch unit respectively. A second end of the first switch unit is connected with a driving power supply, and a second end of the second switch unit is grounded. An anti-backflow unit is connected with a third end of the first switch unit and a third end of the second switch unit respectively. A wiring terminal is led out between the anti-backflow unit and the second switch unit, and is used as an output end of the driving circuit. A control signal input end of the anti-backflow unit and a control signal input end of the first switch unit are used for switching the driving circuit to a target driving mode when corresponding control signals are acquired. The target driving mode includes a drain open circuit driving mode and a push-pull output driving mode. The anti-backflow unit is arranged, so that current backflow and a large leakage current are avoided, and the logic device can output correct driving high level.

The utility model relates to the technical field of automobile air suspensions, and discloses an air suspension system and a vehicle, which comprise a mechanical module and an electronic central control module. The mechanical module comprises a valve body, an air path, an air supply unit, a pressure sensor and a drying chamber assembly, the air supply unit is connected with the valve body through the air path, and the valve body is provided with various valves and is connected with the filtering chamber assembly. The electronic central control module comprises a central control upper cover, a central control base, a central control PCBA circuit board and a switching electromagnetic valve coil. An electromagnetic valve driving circuit on the circuit board is used for controlling opening and closing of an electromagnetic valve. Air compressed and filtered by the air supply unit enters the valve body through the drying cavity assembly, and then the switching electromagnetic valve set is controlled by the electronic central control module to conduct air supply switching. The system is further provided with an inflation pump, an inflation motor, a plurality of sets of switching electromagnetic valves and an air electromagnetic valve which are used for controlling air supply and air exhaust of different air paths. According to the system, efficient and safe operation of the air suspension is achieved through air path design and electronic control.

The utility model discloses a kind of main shaft lifting drive mechanisms of hardware machining machine, it includes servo motor, is installed on base;Lead screw assembly, linkage in servo motor, and at least including there is second screw rod, nut seat is installed on second screw rod;Mounting seat, is fixed on nut seat;Several swing bar assemblies, along the periphery of mounting seat around arrangement, and all include the support of being installed on upper disc upper side, and swing bar is rotationally arranged on support, one end of swing bar is rotationally connected in mounting seat, the other end is rotationally connected in machining tool bit, the utility model adopts the mode of servo motor+ball screw to drive mounting seat to lift along second screw rod, and according to lever principle, swing bar assembly is driven to lift machining tool bit by cooperation stability, the parameter adjustment of servo motor is convenient, driving precision, can satisfy the high-speed operation of equipment, structure is stable, equipment life is long, and practicality is strong.

This application discloses a leakage current detection delay drive circuit and charging device, relating to the field of leakage current protection technology. The leakage current detection delay drive circuit includes a leakage current detection module, a signal amplification module, a voltage divider module, a relay, a pulse widening module, and a relay drive module. The leakage current detection module outputs a leakage current induction signal when a leakage current is detected in the power supply circuit; the signal amplification module outputs a first-level signal in response to the leakage current induction signal; the pulse widening module responds to the first-level signal and outputs a second-level signal; the relay drive module responds to the second-level signal and conducts the relay coil circuit to drive the relay to disconnect. By amplifying the detected leakage current induction signal through the signal amplification module and then widening the pulse width of the amplified level signal through the pulse widening module, the relay in the power supply circuit can be directly driven to operate, giving it the function of a circuit breaker while reducing costs.