Continuous Query Privacy Research And Application Location-based Services

In recent years, with the popularity of wireless communication technology and the smart phone, the applications of location-based services become more and more widespread. Location services technology, also known as location-based services technology, which provides personalized services based on the location of the mobile users. The user sends the location-based services request to the service provider by the mobile terminal with the positioning function, and gets personalized location-based services. Location-based services are changing people’s daily behaviors, and even changing the way people think, which are widely used in important areas of entertainment, navigation, finance, etc. However, the location-based services are causing the leak of users’privacy information and becoming an obstacle to the application of location-based services. So the location-based services privacy protection technology becomes a hot and difficult problem of location-based services research.This paper designs a set of location-based services privacy protection methods by analyzing the common methods for location-based services privacy attacks and the location-based services features such as timeliness, location, personalized customization. First, the attacker cannot determine the real user by dividing the people according to the users’ backgrounds. Second, the model improves the timeliness of location-based services by dividing anonymous area by the grid and restraining the area quickly. Third, for the leak of users’ privacy information in continuous location-based services, the method for privacy protection is proposed in the paper. Finally, in order to facilitate the user to understand the quality of location-based services, the location-based services quality evaluation model is achieved. The model can evaluate the quality of location-based services and return the results to the uses, which is convenient for the users to choose the location-based services.