一个Unix域套接字（进程间通信插座）是一个数据通信端点在同一主机操作系统执行的进程之间的数据交换 -SOCKET Communicate，Socket (software), a web-based sales quoting software application by Deversus Software Inc

这是PHP下实现的插座守护。 这是很容易理解和部署。- This was achieved under PHP socket daemon. This is very easy to understand and deploy.

服务于电动自行车充电的web网页，包含node.js服务器。使用web页面模拟实际充电插座。使用mqtt进行物联网通信。(The web web page for electric bicycle charging, including the node.js server. Use the web page to simulate the actual charging socket. Use mqtt to communicate in the Internet of things.)