The invention discloses an indoor and outdoor seamless joint navigation method which comprises the following steps: binding a
license plate number through an outdoor
navigation system on a mobile terminal, transmitting bound information to a
server through a network, and recording a mobile terminal device number and the
license plate number; when a vehicle arrives at an entrance of a
parking lot, a
license plate number is recognized through scanning equipment on a turn-around
system, and recognized information is transmitted through a network and sent to the
server; the
server judges whether the vehicle enters the
parking lot or exits the
parking lot according to the information that the turn-around
system enters and exits the scanning equipment, and sends the information of the
parking space to the mobile terminal; and when the mobile terminal receives the push message, the outdoor
navigation system is switched to the indoor
navigation system, and the vehicle warehouse-in and warehouse-out data is transmitted to the indoor navigation
system. According to the invention, automatic switching can be carried out, when a vehicle arrives at a parking lot, the turn-around system carries out license plate scanning through the scanning device and is automatically switched to the indoor map system, and the problem of connection of the indoor map system and the outdoor map system is solved.