Electronic Fee Collection (EFC) — Application interface definition between DSRC-OBE and external in-vehicle devices
This document defines an application interface between DSRC-based OBE (hereinafter referred to as "DSRC-OBE") and an external in-vehicle device (hereinafter referred to as "the external device") to make DSRC-OBE applicable for diversified external devices.
NOTE For use in autonomous tolling and DSRC-based (CEN, UNI, ARIB, TTA and GB/T) electronic fee collection (EFC) systems. For use in urban and inter-urban toll schemes.
The scope of this document covers the following items (as shown in Figure 4):
— definitions of the application interface between DSRC-OBE and external devices, including global navigation satellite system (GNSS), cellular network (CN) and controller area network (CAN) device;
— definitions of data groups and data elements.
Figure 4 — Scope of this document
The following items are out of the scope of this document:
— definitions of hardware components in the external device such as GNSS module, CN module and mobile devices;
— definitions of the physical interface between DSRC-OBE and the external device such as USB and Bluetooth;
— definition of ITS services other than EFC;
— definition of algorithms for authentication, encryption and key management.
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