Visible light heterogeneous networking switching method based on communication blind area residence time

The invention belongs to the technical field of visible light communication, and particularly relates to a communication blind area residence time-based visible light heterogeneous networking switching method, which comprises the following steps of: 1, constructing an indoor visible light heterogeneous networking model: arranging LED (Light Emitting Diode) lamps on a ceiling under the condition of ensuring a VLC (Visible Light Communication) communication coverage range and illumination requirements, so that light spreads all around corners of a room, and constructing the indoor visible light heterogeneous networking model; each indoor LED light source can be used as an access point for visible light communication, the downlink data transmission speed is very high, however, the high-speed coverage area of each VLC AP is very small, the uplink of the VLC APs is interfered by downlink light, and the communication transmission is relatively difficult, so that in order to improve the access problem of the uplink,