Improved Dynamic Location Reference Method Agora-C Based on Rule Optimization

Agora-C is a dynamic location reference method, which can match locations between dissimilar maps effectively. It references objects of the road network by a condensed selection of its real-world geographic properties which are stored in a digital map database, instead of utilizing pre-defined object IDs or look-up tables. This method is lack of practicability because of huge encoding bytes and low transmission efficiency caused by weaknesses in encoding rules and encoding formats. According to the basic principles, this paper brought forward an improved Agora-C encoding method based on rule optimization. It reduced redundant and useless information with the help of modifying encoding rules and re-arranging scattered encoding format. An experimental system was implemented to verify these improvements. A contrast test showed that the improved method reduced about half of the encoding bytes on average, which helped to improve the transmission efficiency and make Agora-C meet more practical application needs.