ISO 17438-4:2019 pdf free
ISO 17438-4:2019 pdf free.Intelligent transport systems一Indoor navigation for personal and vehicle ITS station
Because of the existence of indoor spaces, to provide navigation functionality, indoor navigation requires access to more data:
一Indoor positioning reference
Unlike GNSS, many indoor positioning technologies require additional data to support positioning.For example, indoor positioning using WiFi or WLAN infrastructure, which is most frequently mentioned, requires information related to access point devices installed in target indoor spaces or a radio-signal fingerprint map constructed in the target indoor spaces. Other indoor positioning technologies, such as Bluetooth Low Energy (BLE) beacons or Radio-Frequency Identification (RFID) tags, are similar. Geomagnetic indoor positioning also requires a fingerprint map on the strength of the geomagnetic fields in the indoor spaces. Detailed composition of indoor positioning reference data is dependent on indoor positioning technologies.
一Indoor map
Various types of indoor maps, including indoor networks, cells, POIs and background maps, are required for planning routes in indoor spaces and for guidance.
Therefore, fundamental functionalities to support indoor navigation need to include the following:
一ldentification of indoor spaces to be involved in navigation;
一Search and retrieval, or access, of/to indoor maps and indoor positioning reference.
Indoor navigation can be implemented in client-based forms or server-based forms according to various aspects such as accessibility to indoor maps or indoor positioning references to each indoor space. In this document, specific use cases for client-based indoor navigation and server-based indoor navigation including the basic functionalities mentioned above are defined in Clause 7. In Clause 8 message definitions for some use cases defined in Clause 7 are shown. An example scenario of an indoor navigation using defined use cases and messages is given in Annex C.
This document focuses on how to access indoor navigation data to support indoor navigation functionalities, not on a specific type or form of implementation. Therefore, message interfaces to access indoor navigation data are defined in this document and detailed message formats for specific implementation related to normal outdoor navigation are not covered. For example, some messages required for flow controls in server-based navigation, such as setting waypoints, route planning, start/termination of route guidance, which can be given through normal, outdoor server-based navigation,are not defined in this document.ISO 17438-4 pdf free download.
