Vision system, calibration method and battery positioning method for electric vehicle battery replacement

Abstract

The present invention relates to an electric car battery replacement visual system and a calibration method thereof, and a battery location method. The system is provided with two laser sensors whichare installed at two sides of a battery replacement tool side by side, and a distance between the two laser sensors is G; and an industrial camera is installed on the battery replacement tool and is located between the two laser sensors; and connection lines of the industrial camera and the two laser sensors form an isoceles triangle. A concrete battery replacement flow is performed after positioncalibration of the laser sensors and calibration of internal and external parameters of the industrial camera are performed, and therefore, the electric car battery replacement visual system and thecalibration method thereof, and the battery location method are simple in implementation mode and high in applicability, can accurately obtain positions of batteries of different manufacturers, and can control the battery change tool to execute battery replacement motion.

Description

technical field [0001] The invention belongs to the technical field of battery replacement for electric vehicles, and in particular relates to a vision system, a calibration method and a battery positioning method for battery replacement of electric vehicles. Background technique [0002] Environmental pollution and insufficient oil resources are the bottlenecks in the development of the automobile industry. In this context, new energy pure electric vehicles came into being. The so-called pure electric vehicle refers to a vehicle that is powered by a vehicle-mounted power supply, uses batteries to drive the wheels, and meets the requirements of road traffic and safety regulations. Although pure electric vehicles use clean energy, due to the limitations of current battery technology, the battery life of pure electric vehicles is limited. Therefore, pure electric vehicles need to be charged or replaced in time. [0003] For charging methods, there are mainly two types of fas...

AI Technical Summary

Problems solved by technology

[0007] In the past battery replacement process of robots, due to the battery size and weight of commercial vehicles, the requirements for battery replacement fixtures are high. The position of the battery obtained by taking pictures of the battery in the car through the visual system is heavily dependent on the consistency of the battery. Only the batteries that have been calibrated can be replaced accurately. If you need to replace batteries from different manufacturers, you need to re-calibrate

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