停车信号灯,红、绿、黄三种布尔控件做显示，加上适当延时。- parking lights

构建停车信号灯。创建从0到2变化的刻度盘控件，该控件具有3个LED显示：绿色、红色、黄色。当在刻度盘0位置时，使VI打开绿色LED 在1刻度时，打开黄色LED；在2刻度时，打开红色LED。-Construction of parking lights.Create from 0 to 2 changes in the dial control, this control has 3 LED display: green, red, yellow.When the dial 0 position,

通过labview实现停车收费系统，包括串口的选取、读取收费卡号，初始化钱包，进行充值，扣钱，显示余额等功能。(Through LabVIEW, the parking charge system is realized, including the selection of serial port, reading charge card number, initialization of wallet, recharge, deduction, display of balance and