Wireless energy transmission coil alignment method and device and mobile robot

Abstract

The invention discloses a wireless energy transmission coil alignment method, which is used for a main controller. The main controller is in communication connection with a sensor in a mobile robot; and the sensor is connected in parallel at the two ends of a receiving coil in the mobile robot. The method comprises the following steps: through the sensor, obtaining voltage amplitude change information of the receiving coil when the mobile robot moves in an alternative electromagnetic field formed due to radiation of a transmitting coil of a charger; determining increasing direction of the voltage amplitude according to the voltage amplitude change information; and controlling the mobile robot to move in the increasing direction, and when the voltage amplitude of the receiving coil reaches a preset value, stopping the mobile robot and finishing alignment operation. According to the technical scheme, the alignment operation can be done without use of external sensing devices, so that system construction is simple and cost is low. The invention also discloses a wireless energy transmission coil alignment device and the mobile robot, which have the corresponding technical effects above.

Description

technical field [0001] The invention relates to the technical field of wireless power supply, in particular to a coil alignment method and device for wireless energy transmission, and a mobile robot. Background technique [0002] With the development of mobile robot technology, mobile robots are not only widely used in industry, agriculture, medical care, service and other industries, but also in the fields of urban security, national defense and space exploration. Mobile robots generally use high-quality onboard rechargeable battery packs to power themselves, but they can only last for a few hours. When the mobile robot has a heavy workload, the power consumption will be very large. When the power is exhausted, The mobile robot will stop working, and it needs to be charged by manual intervention, so that the continuous work of the mobile robot cannot be guaranteed. The wireless power supply technology solves this problem better. After the receiving coil and the transmittin...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, external sensing devices such as visual sensors and infrared sensors are mainly used to drive the mobile robot to move to achieve coil alignment by obtaining the distance information between the transmitting coil and the receiving coil. However, using these methods to achieve coil alignment , the system structure is complex, the cost is high, and because the infrared sensor is easily affected by environmental factors such as light and smoke, this method has high requirements for the application environment

Images