The status quo of digital cities is analysed in detail, using six different
perspectives:
1. Social interaction
2. Safety
3. Data management and analytics
4. Mobility
2020-05-23 03:57:48
查看 73
www.eeworm.com
一种异步串行通信接口信号.RS485是一种通信接口,里面的信号类似于一种差分信号,两个电平的差值大概是200mV左右,抗干扰性能比较好。
2024-05-12 12:50:01
下载 3
查看 8,853