Abstract: The present disclosure relates to a control method, a load and a power grid system. The method includes: detecting (S102) a voltage change parameter on a power supply side; analyzing (S104) a load control strategy corresponding to the voltage change parameter; controlling (S106) an operation of the load according to the load control strategy. The solution solves the problem of inadequate communication facilities in the DC micro-grid, the DC home communication can be completed without or with less dedicated communication circuits, accordingly the system cost is reduced.

Abstract: The present disclosure provides a multifunctional connector and a splicing model. The multifunctional connector includes a first connection assembly and a second connection assembly. The first connection assembly includes a first housing, a first elastic member, and a first electrical member; wherein the first housing is hollow; the first elastic member is resiliently connected to the first housing; the first electrical member is arranged in an interior of the first housing. The second connection assembly includes a second housing, a second elastic member, and a second electrical member; wherein the second housing is hollow; the second elastic member is resiliently connected to the second housing; the second electrical member is arranged in an interior of the second housing. When the first housing is connected to the second housing, the first electrical member and the second electrical member are plugged and connected.

Abstract: In some implementations, a microruler is patterned on a surface of a wafer to enable visual overspray screening and/or quantitative measurement. For example, a laser bar cleaved from a wafer may comprise multiple laser devices that each include a first facet and a second facet, an anti-reflective (AR) coating applied to the first facet, and a highly reflective (HR) coating applied to the second facet. Furthermore, a set of microrulers may be patterned on a surface of the laser bar, where each microruler in the set of microrulers is aligned with a bar cleaving line where the laser bar was cleaved from the wafer, and each microruler has multiple graduation markings that each represent a respective distance from the bar cleaving line such that the graduation markings can be used to quantitatively measure an overspray of the AR coating or the HR coating relative to the bar cleaving line.

Abstract: The present disclosure relates to a control method, a load and a power grid system. The method includes: detecting (S102) a voltage change parameter on a power supply side; analyzing (S104) a load control strategy corresponding to the voltage change parameter; controlling (S106) an operation of the load according to the load control strategy. The solution solves the problem of inadequate communication facilities in the DC micro-grid, the DC home communication can be completed without or with less dedicated communication circuits, accordingly the system cost is reduced.