What is the current situation of indoor positioning?

At present, indoor positioning has been applied in many scenes. To give some application examples, users can look for specific restaurants or products in stores, get preferential information from merchants in nearby shopping malls, find colleagues in offices, find boarding gates/platforms or other facilities in airports or railway stations, learn more about exhibits and watch exhibitions in museums, locate medical personnel or medical equipment in hospitals, locate firefighters in burning buildings, and so on.

Of course, indoor positioning faces many unique challenges. For example, the indoor environment is very dynamic and can be said to be diverse, and different buildings will have different indoor layouts; The indoor environment is finer and needs higher precision to distinguish different features. So what requirements do practical indoor positioning schemes need to meet? It mainly includes the following aspects: accuracy, coverage, reliability, cost, power consumption, scalability and response time. Zhengzhou Li Anrui Electronics has done a good job.