Replacing traditional parking cards with license plate numbers can solve problems in traditional systems：
1、Thoroughly solve the problem of one card and more cars in the traditional system.
2、Thoroughly solve the problem of not carrying the card in the traditional system.
3、Completely solve the traditional system of card loss caused by card replacement card work;
4、Thoroughly solve the problem of card replacement in the traditional system caused by card damage.
5、Thoroughly solve the traditional system of long-distance card penetration and replacement of batteries.
6、Thoroughly solve the traditional system, malicious take temporary card situation.
7、In the traditional system, the card size of the card issuing machine is limited.
8、Thoroughly solve the problem of arbitrary charging of operators in traditional systems.