Automatic charging control method and system thereof

Abstract

The automatic charging control method involves activating the charging device, acquiring UWB tag information of the receiving device, wherein the charging device sets a charging area, deploys at least one UWB anchor point in the charging area, and the UWB anchor point is configured with a multi-coil matrix; guiding the receiving device to automatically locate itself in the charging area based on the UWB tag information of the receiving device and the at least one UWB anchor point; acquiring the charging efficiency of the receiving device during the charging process, selecting a target UWB anchor point based on the charging efficiency, and activating the multi-coil matrix on the target UWB anchor point to perform charging efficiency compensation.

Claims

1. A method for controlling automatic charging, comprising: A charging device is activated, and UWB tag information of a receiving device is obtained. The charging device is located in a charging area, and at least one UWB anchor point is deployed in the charging area. The at least one UWB anchor point is configured with a multi-coil matrix. The receiving device is guided to automatically locate itself in the charging area based on the UWB tag information of the receiving device and the at least one UWB anchor point. The charging efficiency of the receiving device during a charging process is obtained, and a target UWB anchor point is selected based on the charging efficiency. The multi-coil matrix on the target UWB anchor point is activated to compensate for the charging efficiency.

2. The automatic charging control method as described in claim 1, wherein the device is guided to automatically locate itself in the charging area based on the UWB tag information of the device and the at least one UWB anchor point, further comprising: The device is guided into the charging area based on its UWB tag information and at least one UWB anchor point for initial alignment; UWB phase information of the device within the charging area is acquired, and the alignment position of the device with the charging area is adjusted based on the UWB phase information and a PID loop controller; and a displacement information of the device is monitored in real time by the charging device sending a UWB signal, and the alignment position is readjusted based on the displacement information.

3. The automatic charging control method as described in claim 2, wherein, Guiding the powered device into the charging area based on the UWB tag information of the powered device and the at least one UWB anchor point includes: determining an instantaneous position of the powered device based on the UWB tag information of the powered device and the at least one UWB anchor point; determining a path plan based on the instantaneous position of the powered device and the alignment position of the charging area; and guiding the powered device into the charging area based on the path plan.

4. The automatic charging control method as described in claim 1, wherein the at least one UWB anchor point includes a UWB main anchor point and at least one UWB secondary anchor point, the method comprising: When the powered device starts charging in the charging area, the multi-coil matrix on the UWB main anchor point is activated for charging, and at least one UWB secondary anchor point waits to be woken up.

5. The automatic charging control method as described in claim 4, wherein the target UWB anchor point is selected based on the charging efficiency to activate the multi-coil matrix on the target UWB anchor point for charging efficiency compensation, further comprising: When the charging efficiency does not reach a specified efficiency value, the target UWB anchor point is selected according to the position of each UWB sub-anchor point, and the multi-coil matrix on the target UWB anchor point is turned on to compensate for the charging efficiency; and when the charging efficiency has reached the specified efficiency value, the currently turned-on UWB main anchor point is maintained.

6. The automatic charging control method as described in claim 1 further includes: When the receiving device enters the charging area, it sends a UWB signal to receive a reflected signal. It then identifies foreign objects based on the frequency changes of the reflected signal. If the identified foreign object is an animal, it sends a low-frequency repelling signal. If the identified foreign object is a person, it shuts down the power transmission of the multi-coil matrix and waits for an activation command. If the identified foreign object is metal, it adjusts the receiving device to avoid it.

7. The automatic charging control method as described in claim 1, wherein the device is guided to automatically locate itself in the charging area based on the UWB tag information of the device and the at least one UWB anchor point, comprising: Based on the UWB tag of each powered device, obtain battery capacity information, power status information and location information for each powered device. A current device to be charged is matched based on the battery capacity information, power status information and location information of each device; and a path plan is determined based on the UWB tag carried by the current device to be charged and the at least one UWB anchor point, and the current device to be charged is automatically guided to the charging area according to the path plan.

8. The automatic charging control method as described in claim 7, wherein determining the path planning based on the UWB tag carried by the currently charging device and the at least one UWB anchor point, further comprising: The location of the device to be charged is determined based on the UWB tag carried by the device and the at least one UWB anchor point. The antenna at the anchor point is adjusted according to the location to enhance the UWB signal strength. The path planning for the device to be charged to reach the charging area is determined based on the enhanced UWB signal strength.

9. An automatic charging control system, comprising: The system comprises a charging device, a receiving device, and a server; wherein the receiving device is equipped with a UWB tag for receiving a UWB signal; the server stores relevant information of the receiving device, including the UWB tag information; the charging device includes a charging pile and a charging area, wherein at least one UWB anchor point is deployed in the charging area, and the at least one UWB anchor point is equipped with a multi-coil matrix; the charging pile includes a safety control module and a charging efficiency control module; the safety control module is used to obtain the relevant information of the receiving device from the server, and guide the receiving device to automatically locate itself in the charging area based on the relevant information and the UWB signal; and the charging efficiency control module is used to obtain a charging efficiency of the receiving device during the charging process, select a target UWB anchor point based on the charging efficiency, and activate the multi-coil matrix on the target UWB anchor point to compensate for the charging efficiency.

10. The automatic charging control system as claimed in claim 9, wherein a wideband linear frequency modulated pulser, a MIMO antenna array, and a crystal oscillator are configured on the UWB anchor point; wherein the crystal oscillator is used to adjust the frequency drift of the powered device during the charging process to ensure the frequency stability of the wideband linear frequency modulated pulser; the wideband linear frequency modulated pulser is used to send a wideband linear frequency modulated pulse signal to locate the target UWB anchor point with the phase signal received by the MIMO antenna array; the UWB anchor point is used to identify a foreign object in the charging area by impedance matching the charging frequency through the multi-coil matrix and sending the UWB signal; and the charging efficiency control module includes an instantaneous power adjustment circuit, which is used to adjust the charging power of the multi-coil matrix according to the remaining power of the powered device.

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