11results about How to "Less calibration work" patented technology

The invention provides a system and method for measuring the deformation coordination capability of a pressure-resistant cabin model platform, and the system comprises a measurement reference which is a steel wire, the steel wire is horizontally disposed above a to-be-measured cabin model platform and is parallel to the to-be-measured cabin model platform, and the to-be-measured cabin model platform is provided with a plurality of measurement points. According to the method, the measurement precision and efficiency can be effectively improved, and the actual application requirements of the pressure-resistant cabin section model platform can be better met.

The present invention discloses an optical path system and a laser radar. The optical path system emits N synchronous light beams into a rotating polyhedral prism, and forms N scanning lights through the rotating polyhedral prism. The scanning lights are reflected by a fixed polyhedral prism to form N vertical scanning lights that are synchronously emitted from the center of a circle toward the outside. Compared with a single light source, the refresh rate is increased by N times. When the refresh rate is maintained at 1 / N, the scanning time of each horizontal angle is correspondingly increased, the vertical scanning time within the horizontal scanning angle is increased, and the vertical resolution is increased. This laser radar includes N (at least two) laser transmitters, an optical path system, a horizontal rotation structure, and a motor control module. The laser emitted by the laser transmitter emits N vertical scanning lights through the optical path system. When the refresh rate remains unchanged, the rotation speed can be reduced, and the scanning time of each horizontal angle is increased, thereby increasing the vertical scanning time within the horizontal scanning angle, and increasing the vertical resolution by multiples.

The utility model discloses a water ballast space refitted platform, which relates to the technical field of ship water carrying, and comprises a refitted platform body, the upper end of the refitted platform body is provided with a mounting groove, first cylinders are symmetrically mounted at chamfers at the bottom end of the mounting groove, and the telescopic ends of the first cylinders are in threaded connection with a mounting plate; buffering assemblies are symmetrically installed at chamfers of the upper end of the mounting plate, a refitting table is arranged at the upper end of the mounting plate, moving assemblies are symmetrically installed in the refitting table, an adjusting plate is slidably connected to the upper end of the refitting table, and a clamping assembly is installed at the upper end of the adjusting plate. By the adoption of the structure, impact force generated between the water ballast tank and the refitted platform when the water ballast tank is placed can be remarkably reduced, the integrity and safety of the water ballast tank and components in the water ballast tank are protected, the refitted platform can adapt to water ballast tanks of different sizes and shapes, and operation convenience and efficiency are greatly improved.

The invention belongs to the technical field of 3D printing, and discloses a rapid photocuring 3D printing system based on an SLIPS lubricating interface and a preparation method of the SLIPS lubricating interface, the rapid photocuring 3D printing system comprises a rapid photocuring printing table and a light machine, the light machine is placed in front of the rapid photocuring printing table and provides light for the rapid photocuring printing table, the rapid photocuring printing table comprises a liquid tank, and the liquid tank is arranged in front of the rapid photocuring printing table and provides light for the rapid photocuring printing table. The liquid tank is used for injecting curing liquid, the bottom of the liquid tank is provided with an SLIPS lubricating interface, and the SLIPS lubricating interface plays a lubricating role and reduces adhesion of the curing liquid. The SLIPS lubrication interface technology is applied to the rapid photocuring 3D printing system, the sliding performance between the material and a printing platform in the printing process is improved, material adhesion is reduced, and therefore the quality and printing efficiency of a printed piece are improved. Through the design of the SLIPS lubricating interface, the printing failure rate can be remarkably reduced, and the service life of equipment can be prolonged.

The invention discloses a multi-angle illumination image synthesis method and device, and the method comprises the steps: obtaining a plurality of illumination images of a same sample at different illumination visual angles, taking the center of the illumination image as an observation center, carrying out the difference calculation of two illumination images of which the illumination visual angles are located in a straight line where the observation center is located, and obtaining a plurality of difference images; respectively determining enhancement multiples according to the brightness of the plurality of original illumination images, enhancing the difference image according to the determined enhancement multiples, and performing interpolation calculation on the obtained difference enhanced image to obtain a longitude image; obtaining an illumination image of a top view angle or calculating and processing a plurality of original illumination images to synthesize the illumination image of the top view angle; and performing interpolation calculation on the obtained longitude image and the illumination image of the top view angle to obtain an illumination image with given longitude and latitude. And an image observed from any angle on the hemispherical surface above the sample can be obtained.

This invention discloses a conductivity adjustment system for a dialysis mixing device, including an RO water flow sensor, a B-liquid conductivity sensor, a dialysate conductivity sensor C, an RO water pump, a B-liquid infusion pump, an A-liquid infusion pump, a B-liquid feedforward controller, a dialysate feedforward controller, a B-liquid parameter adaptive PID feedback controller, and a dialysate parameter adaptive PID feedback controller. Employing a feedforward + feedback control strategy to adaptively adjust parameter variables during the mixing process, this patent enables large-scale automated mixing of dialysate.

A vehicle control method is provided for controlling the steering wheel angle of the vehicle in real time during automatic parking of the vehicle, the method comprising: obtaining a self-correcting lateral dynamics model of the vehicle and a motion state quantity of the vehicle at a current moment, wherein the self-correcting lateral dynamics model establishes a mapping between the steering wheel angle of the vehicle and the turning curvature of the vehicle, wherein the turning curvature is a function of a self-correcting coefficient and the steering wheel angle; determining an actual turning curvature of the vehicle based on the motion state quantity; determining a theoretical turning curvature of the vehicle based on the self-correcting lateral dynamics model and the motion state quantity; determining a value of the self-correcting coefficient at a current moment based on the actual turning curvature and the theoretical turning curvature; and controlling the steering wheel angle of the vehicle based on the value of the self-correcting coefficient at a current moment and the self-correcting lateral dynamics model.

This invention relates to the field of permanent magnet synchronous motor vector control technology, specifically to a rapid calibration method for permanent magnet synchronous motors in new energy vehicles. It includes a calibration table for the maximum torque-to-current ratio; a calibration table for the motor flux linkage; a calibration table for the motor inductance; and obtaining the target torque T. req And by consulting the calibrated lookup tables, the required d-axis current i to be output is obtained. dref and q-axis requested current i qref This method does not require the motor to operate at high speeds, reducing risks and minimizing the need for high-speed testing benches. It also offers high calibration efficiency and high control precision.

The present invention relates to a ramp merging control system based on map signals, comprising a map signal module for obtaining a real-time vehicle position and ramp merging conditions; a driver intention self-learning module for judging the driver's ramp merging operation intention and obtaining a self-learning weighted coefficient; a merging acceleration execution coefficient calculation module for activating a ramp merging acceleration instruction; and a merging acceleration execution module for executing a ramp merging acceleration instruction. The present invention also relates to a ramp merging control method based on map signals, comprising the steps of: issuing a ramp merging control instruction; calculating a ramp merging execution coefficient; activating a ramp merging acceleration function instruction; and executing acceleration management. The present invention has a wide range of applications, low cost, and great customer benefits; effectively avoids lane congestion and traffic accidents caused by slow driving; improves driving experience, and further reduces accident rates and traffic jam rates; reduces calibration work, and provides customized strategy services for different people and vehicles.

The invention discloses a new energy commercial vehicle brake-by-wire system equivalent braking force control method, and relates to the technical field of new energy vehicle brake-by-wire. On the basis of an equivalent braking force method, under the same braking strength request of an intelligent driving system, the total braking force output by composite braking is consistent with that during pure mechanical braking, electric braking force is preferentially used during braking, the braking force of a front motor and the braking force of a rear motor are distributed according to a pre-distribution coefficient # imgabs0 #, if the electric braking force does not meet the braking requirement, hydraulic braking force makes up, and if the electric braking force does not meet the braking requirement, the hydraulic braking force makes up for the braking requirement. And the hydraulic braking system distributes the hydraulic braking force according to the distribution coefficient # imgabs 1 #. By the adoption of the method, a brake system does not need to be transformed, an intelligent driving system does not need to be matched again, only the vehicle brake-by-wire function needs to be flexibly and rapidly matched through the intelligent chassis, a large amount of calibration work of commercial vehicle composite braking is reduced, and the development period is shortened; meanwhile, the driving mileage can be effectively increased, the response speed of a braking system is increased, and the braking characteristic of an original vehicle and the driving habit and braking feeling of a driver are not changed.