Embodiments of the present disclosure relate to a computer-implemented method. The method may include receiving identification information of a vehicle and identification information of a parking space to bind the vehicle with the parking space and generate binding information, receiving a time when the vehicle enters the parking space and a time when the vehicle exits the parking space, calculating a parking fee of the vehicle according to the time when the vehicle enters the parking space and the time when the vehicle exits the parking space, determining identification information of a shopping cart that corresponds to the vehicle according to the identification information of the vehicle, the binding information of the vehicle and the parking space, and a correspondence between the parking space and the shopping cart, and sending the parking fee of the vehicle to the shopping cart that corresponds to the identification information of the shopping cart.