發送短信 : Place recognition and re-localization for last-mile delivery robot

 ______      ___     _____     __   __   _    _   
|      \\   / _ \\  |  __ \\   \ \\/ // | || | || 
|  --  //  | / \ || | |  \ ||   \ ` //  | || | || 
|  --  \\  | \_/ || | |__/ ||    | ||   | \\_/ || 
|______//   \___//  |_____//     |_||    \____//  
`------`    `---`    -----`      `-`'     `---`