It saves the expense and consumption data into user accounts. In the event that a user uses a bike a bike in a hurry when Tana tea or lost. Through the State. Unable to find the user information and send the Bill to the end user.
The unit logs and expenses into account. In that case, the customer bikes overtime. The bike damages or lost, the state is able to search for user data. And send a bill to the user.
The recording data using and cost into account. If you use the bike overtime apply bicycle damaged or lost, the tea state can find information users. And send the bill to the user.