A.Fleet management application sets the car engine reporting cycle

B.Smoke sensor reports smoke A, Bnormalities in the home

C.Smart street light application remotely opens an area street light

D.Smart home mobile APP remotely query the status of electrical appliances in the home

A.For each small packet, the base station quickly reports whether it has been successfully received; if it fails, the terminal retransmits; otherwise, it continues to send.

B.The small packet fast transmission mechanism controls the packet length sent via the wireless link to a relatively small range.

C.Rapid feedback of received results improves uplink transmission efficiency.

D.The small packet fast transmission mechanism controls the packet length, reducing the probability of data packet interference during transmission.

A.Data storage and analysis

B.Device manufacturing

C.Sensor installation

D.Power supply

A.Information Collection

B.Information Input & Output

C.Linkage Control

D.Centralized & Remote Control