Smart Delta Updates for Maps (OTA)

Map Updates for Connected Vehicles

Map updates are performed on vehicles to refresh the data on a vehicle’s navigation and safety systems. Information on new and updated roads, signage, points of interest, speed limits and more optimize the route suggestions made to the driver. Automotive OEMs, location-based service providers and end-to-end mapping solution providers use different methods for keeping maps up-to-date. These methods include updating the full map, the tiles or only the data vectors (layers). With such methods, OEMs must incur tremendous costs due to map size, which affects the throughput, required bandwidth and on-board storage. 

Effectively Update Maps via Smart Delta OTA

With the HARMAN Smart Delta for Maps product, Automotive OEMs will now be able to update their on-board maps in a cost-effective and a timely manner. The solution allows them to reduce the size of map updates to a large extent by leveraging the Smart Delta technology. HARMAN’s Smart Delta for Maps identifies only the amended, new data in the map as compared to the previous version. It then extracts and applies the new information to the existing map on the vehicle. This reduces the cost, transfer and amount of storage required on the vehicle. This ability to handle continuous updates exists both within regions and in region-less files, such as the “global” files.

Key Components of the Smart Delta Solution

  • Map Update Generator - extracts only the essential differences between map versions
  • Map Update Agent - orchestrates the update process and applies the changes to the existing map to create an updated version of the map
Top-line Benefits
  • Optimized map updates are performed automatically, with minimum or no input from the driver, through any available wireless network (Wi-Fi, cellular, etc.)
  • Industry’s smallest differential map update package - as low as 2.5% of the full map size
  • Enables frequent updates of on-board maps for navigation and safety systems
  • Supports various types of maps in Navigation Data Standard (NDS) format

Smart Delta Features and Benefits

Class-leading Smart Delta Technology
  • Eliminates need to replace entire files or software images
  • Determines any changes in the map and applies them to target components
“In Place” Update Cost Savings
  • Software updates are performed completely “in place,” within the available memory
  • Avoids potentially costly RAM upgrades or BOM (Bill of Materials) expansions
Increase Frequency of Maps Update

The Smart Delta package size contains only the changes between the versions. In some cases, it can result in a 250 MB package instead of a 10 GB full image size. This generation of a differential update package enables frequent map updates

Global & Flexible

Supports various maps in Navigation Data Standard (NDS) format

Proven Success

Smart Delta for Maps is a part of HARMAN OTA Solution, trusted by more than 40 global vehicle manufacturers on 38 million vehicles

100% Fail Safe Delivery

Smart Delta for Maps includes recovery mechanism, even in a case of interrupt during the update it will resume and end the update successfully

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