ISO/IEC 15149-1:2014 情報技術—システム間の電気通信と情報交換—磁場エリアネットワーク（MFAN）—パート1：エアインターフェース | ページ 2

Foreword

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.

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The committee responsible for this document is ISO/IEC JTC 1, Subcommittee SC 6, Telecommunications and information exchange between systems.

This first edition of ISO/IEC 15149-1 cancels and replaces ISO/IEC 15149:2011, of which it constitutes a minor revision.

ISO/IEC 15149 consists of the following parts, under the general title Information technology — Telecommunications and information exchange between systems — Magnetic field area network (MFAN):

• Part 1: Air interface
• Part 2: In-band Control Protocol for Wireless Power Transfer

Relay Protocol for Extended Range and Security Protocol for Authorization will form the subjects of future Parts 3 and 4, respectively.

Introduction

This International Standard provides protocols for magnetic field area network (MFAN). MFAN can support the service based on wireless communication and wireless power transfer in harsh environment. MFAN is composed of four protocols: air interface, in-band control protocol, relay protocol, and security protocol.

This part of ISO/IEC 15149 specifies the physical layer and media access control layer protocols of wireless network over a magnetic field.

ISO/IEC 15149-2 specifies the control protocol for wireless power transfer based on magnetic field area network.

ISO/IEC 15149-3 specifies the relay protocol to extend effective network coverage of magnetic field area network.

ISO/IEC 15149-4 specifies the secuity protocol to authorize nodes to communicate in magnetic field area network.

1 Scope

This part of ISO/IEC 15149 specifies the physical layer and media access control layer protocols of wireless network over a magnetic field in a low frequency band (~300 KHz) for wireless communication in harsh environment (i.e., around metal, underwater, underground, etc.).

The physical layer protocol is designed for the following scope:

• low carrier frequency for large magnetic field area and reliable communication in harsh environment;
• simple and robust modulation for a low implementation cost and error performance;
• variable coding and bandwidth for a link adaptation.

The media access control layer protocol is designed for the following scope:

• simple and efficient network topology for low power consumption;
• variable superframe structure for compact and efficient data transmission;
• dynamic address assignment for small packet size and efficient address management.

This part of ISO/IEC 15149 supports several Kbps data transmission in wireless network within a distance of several meters. It can be applied to various services such as the following areas:

• environmental industry to manage pollution levels in soil and water using wireless underground or underwater sensors;
• construction industry to monitor the integrity of buildings and bridges using wireless, inner-corrosion sensors;
• consumer-electronics industry to detect food spoilage in wet, airtight storage areas and transfer the sensing data from the inside to the outside;
• agricultural industry to manage the moisture level as well as mineral status in soil using wireless, buried sensors;
• transportation industry to manage road conditions and traffic information using wireless, underground sensors.

2 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

Bibliography