Indoor navigation method and parking management system

An onboard device suitable for indoor navigation, characterized by comprising:

• a communication module, an acquisition module and a navigation processing module;
• the acquisition module is used for obtaining instantaneous data acquired by an inertial sensor fitted to a vehicle;
• the navigation processing module records a path driven by the vehicle on the basis of the instantaneous data of the inertial sensor, and/or provides an inertial navigation service on the basis of the instantaneous data of the inertial sensor;
• and by means of the communication module, uploads the driven path to a remote server and/or acquires from the remote server a reference path for the vehicle to drive to an indoor navigation destination, and during navigation uses the reference path to subject an actual inertial navigation path during this time to path deviation correction.

A parking management system suitable for an indoor car park, characterized by comprising:

• a narrow-band Internet of Things device, disposed in the indoor car park and used to manage one or more parking spaces, each narrow-band Internet of Things device detecting an idle state of the managed one or more parking spaces;
• and a background management platform in communication with the narrow-band Internet of Things device;
• the narrow-band Internet of Things device, when a vehicle drives into a parking space managed thereby for the first time, obtains from the vehicle a path by which it drove to the parking space after entering the indoor car park, and uploads same to the background management platform, to serve as a reference path for driving to the parking space;
• or the narrow-band Internet of Things device, when a vehicle drives into a parking space managed thereby for the first time, notifies the vehicle that the parking space has been driven into, and the vehicle uploads to the background management platform a path by which it drove to the parking space after entering the indoor car park, to serve as a reference path for driving to the parking space;
• when entering the indoor car park, a vehicle equipped with an inertial navigation system obtains a reference path, provided by the background management platform, for driving to a parking space allocated to the vehicle, such that the vehicle, while driving to the allocated parking space, uses the reference path to subject an actual inertial navigation path during this time to path deviation correction.