Offline\u00a0matching\u00a0<\/strong>
\nFor example, when map-matcher receives a huge volume of GPS data to calculate complete route of several trucks in a fleet. Offline matching could be used to perform further, more weighted analysis of fleet data. Our experts developed a multi-functional GPS map matching mechanism that allow extracting traffic flow information from vehicle GPS tracks for precise route tracking even if offline.<\/li>\n<\/ul>\nIntellias, in collaboration with our client\u2019s team, addressed two main concerns of map matching: performance and accuracy.<\/p>\n
As for performance, we managed to create a map matching algorithm that reduce response times to the tens of milliseconds, enabling smoother online navigation experiences for users.<\/p>\n
As for accuracy, we were able to improve the mechanism for generating plausible path options that are then ranked to get the most accurate option. The challenge with accuracy had to do with deviations in GPS precision, GPS signal interruptions in tunnels, road network density and complexity, and other factors.<\/p>\n
Business impact<\/h2>\n
Our collaboration has now moved to the maintenance phase, with episodic change or improvement requests. We\u2019ve delivered the fully functional map matching component into production and it\u2019s operating successfully in the real world.<\/p>\n
Customers are actively using this matching tool to automate updates to high-definition maps. Here\u2019s how it works: Imagine that 5,000 cars equipped with traffic sign detection cameras pass by a newly installed traffic sign. Each vehicle\u2019s onboard system detects and recognizes the sign, records its individual trace point data, and transfers that data to a dedicated server. The backend then uses this combined input data to pinpoint the precise place on the map where the sign was detected. Finally, the server sends a command to update the map with the new traffic sign.<\/p>\n
Map matching workflow<\/strong><\/p>\n\n- Ingest GPS and sensor data<\/li>\n
- Store data<\/li>\n
- Map data to map<\/li>\n
- Update map<\/li>\n
- Publish update<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
We assisted in delivering a map matching mechanism for the world\u2019s most innovative location-based development ecosystem<\/p>\n","protected":false},"author":6,"featured_media":49789,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[12,11,458],"acf":[],"yoast_head":"\n
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![\"Powerful](\"https:\/\/intellias.com\/wp-content\/uploads\/2018\/09\/map-matching-with-GPS-routes.png\")
<\/p>\n