The locations of moving object data privacy protection technology research and application

With the rapid development of information technology and the Internet, resulting in a large number of moving object location data, the application of moving object location service is also expanding, such as GPS positioning, the car navigation, position sensor, search and rescue system. More and more location data is being collected, published and used, which may contain the moving object privacy information in the data. In privacy protection, the K - anonymous method is the most commonly used algorithms, but the greater the K, the better the protection of privacy, the more information lost. The paper analyzes the meaning of privacy protection, and the key issues in privacy protection firstly. Then proposed a improved k-anonymity technology for k-anonymity defect, t The simulation results show that the algorithm is more easily avoid speed related attacks, it is not easy to leak information.