1、专业major2、电子信息工程专业electronic and information engineering 例如：my major is electronic and information engineering3、The socket power is regularly turned off by the relay controlled by SCM in 24 hours， the socket power is powered on during the fixed period， and during other time period it is powered off， the electrical appliance is turned on and turned off At the same time， the socket has a function of overload protection， Utilizing the heat effect of themometal part， it can apperceives temperature and current to protect the the function such as regulary time， start， stop is set up through the The 220V AC is translated into 5V DC to drive SCM by transformer and rectifier module， the uninterrupted power supply of system is The relative information such as timing is displayed by liquid-crystal indicator， so that the function of energy-saving， environmental protection and provention of the accident is
