A Shared Bicycle Intelligent Lock Control and Management System Based on Multisensor

As a greener means of transportation, shared bicycle is becoming more popular in many cities. However, random parking seriously affects the appearance of a city and the safety of traffic. To realize a rational parking, an innovative bicycle intelligent lock based on multisensor was suggested in this article. First, a multisensor fusion and positioning algorithm was applied in the scheme of this article to judge whether the location and the positioning of the parking are proper. Next, through the radio-frequency identification technology, the system reads the information on the RF card of the intelligent lock for user authentication and used Narrowband Internet of Things (NB-IoT) to communicate between the devices and the server. Finally, through online monitoring and alarm software, the system can monitor the bicycle parking conditions in real time. In order to improve the accuracy of the event judgment, the attitude angle data were processed using the Kalman filter algorithm. The experimental results showed that a suitable direction error threshold was 10°, the average bicycle unlocking success rate was 98%, the average delay time was 4595.06 ms, and the judgment rates of inappropriate parking reached 100%. Therefore, by reminding and asking the user to park the bicycle correctly and alarming when the bicycle falls down, this system can make the parking of shared bicycles neater. The bicycle manager can also keep track of bicycle status information in time.