ISO IEC 24730-2-2012 PDF

Full title and description

St ISO IEC 24730-2-2012 — Information technology — Real time locating systems (RTLS) — Part 2: Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol. This document defines the 2.4 GHz DSSS air-interface elements of a networked RTLS that provides X–Y location coordinates and telemetry for transmitters (tags), including support for exciter and simple On/Off-Key (OOK) modes.

Abstract

ISO/IEC 24730-2:2012 (Edition 2, 2012) specifies the 2.4 GHz DSSS radio air interface for RTLS transmitters that autonomously generate spread‑spectrum beacons. The standard is published as a main Part 2 document together with two related parts that specify single‑ and multiple‑code transmitter variants (Parts 21 and 22). It defines message formats, basic transmitter behaviours and optional modes (exciter, OOK) but does not mandate implementation methods.

General information

• Status: Published (confirmed in review 2023).
• Publication date: June 2012 (Edition 2).
• Publisher: ISO/IEC (JTC 1/SC 31 — Automatic identification and data capture techniques).
• ICS / categories: 35.040.50 (Automatic identification and data capture techniques).
• Edition / version: Edition 2 (2012).
• Number of pages: 6 (official ISO record for the 2012 edition).

Summary details above are drawn from the ISO catalog entry and international standards webstore records.

Scope

The standard specifies the 2.4 GHz direct‑sequence spread spectrum (DSSS) air interface used by RTLS transmitters to enable networked location services that produce X–Y coordinates and carry telemetry. It covers beacon formats, timing and modes of operation (including optional exciter and OOK modes) required to support interoperable RTLS deployments at 2.4 GHz; it does not prescribe higher‑level application APIs (see Part 1) nor the internal implementation of transmitter hardware. The 2012 edition reorganised and split earlier material into Part 2 plus Parts 21 and 22 to clarify single‑ and multi‑code transmitter variants.

Key topics and requirements

• Definition of DSSS 2.4 GHz air‑interface beacon formats for RTLS transmitters (frame structure, timing and signalling).
• Support for transmitter modes: normal beaconing, optional exciter mode for location stamping, and simple OOK response for handheld readers.
• Interoperability descriptors: how transmitters and interrogators exchange location/telemetry information to support X–Y positioning.
• Separation of single‑code and multi‑code transmitter behaviours into Parts 21 and 22 (encoding and spreading schemes such as DBPSK/BPSK and QPSK/WOQPSK are addressed in the companion parts).
• Normative references and relationships to other RTLS and RFID air‑interface standards to aid integration and testing.

Typical use and users

Organizations deploying site‑level RTLS for asset tracking, personnel location, healthcare equipment management, manufacturing and logistics use this standard to ensure device interoperability at the 2.4 GHz air interface. Typical users include RTLS equipment manufacturers (tags/transmitters and readers/interrogators), system integrators, test labs, and IT architects designing location services that consume X–Y coordinate streams. Vendors and integrators also reference this part when implementing compatibility with legacy deployments and third‑party RTLS feeds.

Related standards

ISO/IEC 24730 is a multipart RTLS family. Closely related documents include: ISO/IEC 24730-1 (RTLS — Application programming interface), ISO/IEC 24730-21 and ISO/IEC 24730-22 (2012 companion parts specifying single‑code and multi‑code DSSS transmitter variants), ISO/IEC 24730-5 (CSS at 2.4 GHz), and other RFID/air‑interface standards such as ISO/IEC 18000 series and ISO/IEC 15963 for identifier/data formats. The 2006 edition of 24730‑2 was superseded and reorganized by the 2012 publications.

Keywords

RTLS, DSSS, 2.4 GHz, air interface, spread spectrum, beacon, exciter, OOK, transmitters, location protocol, ISO/IEC 24730.

FAQ

Q: What is this standard?

A: ISO/IEC 24730-2:2012 is the 2.4 GHz DSSS air‑interface part of the ISO/IEC 24730 family for real‑time locating systems; it defines the radio beacon and related transmitter behaviours used to produce location coordinates and telemetry.

Q: What does it cover?

A: It covers the air‑interface message formats, timing and operational modes (including exciter and OOK modes) for DSSS 2.4 GHz RTLS transmitters, but not the higher‑level application API (Part 1) or the internal implementation of devices. Companion Parts 21 and 22 specify single‑ and multi‑code transmitter encoding/spreading schemes.

Q: Who typically uses it?

A: RTLS tag and reader manufacturers, test laboratories, system integrators and enterprise architects deploying or integrating 2.4 GHz RTLS systems use this standard to achieve compatible, interoperable location services.

Q: Is it current or superseded?

A: The 2012 edition (Edition 2) is the current published version (the ISO catalogue shows it was reviewed/confirmed in 2023). It replaced the earlier 2006 edition, which was reorganised into the 2012 Part 2/21/22 set. Users should confirm whether newer revisions exist at the time of procurement.

Q: Is it part of a series?

A: Yes — ISO/IEC 24730 is a multipart RTLS standard set. Key parts include Part 1 (API), Part 2 (this DSSS air‑interface document) and Parts 21/22 (detailed transmitter variants), plus other related RTLS air‑interface parts such as Part 5 (CSS) and Part 62 (UWB).

Q: What are the key keywords?

A: RTLS, DSSS, 2.4 GHz, spread spectrum, transmitter, beacon, exciter, OOK, interoperability, ISO/IEC 24730.