IDENTEC SOLUTIONS i-B2 S/NA, Руководство пользователя, Страница: 6 / 12

i-B2 S – User’s Guide
Version 1.0
03.08.2006 Page 6/12
1.0 Overview
This guide explains how to install and operate the beacon tag i-B2 S.
2.0 Functionality
The i-B2 S/NA is a high performance maintenance free beacon tag to be used with IDENTEC SOLUTIONS’
Intelligent Long Range (ILR
®
) beacon readers. Its’ robust and slim housing allows easy mounting on most of the
assets to be tracked.
Beacon tags of IDENTEC SOLUTIONS’ i-B series transmit a unique ID together with user definable data in
regular intervals (ping rate). Combined with fixed readers read ranges of typically 100 m can easily be reached.
With mobile readers based on i-CARD R2 (PC card Type 2) or i-CARD CF B (CF Type 2) reading distances up to
30 m are realistic.
2.1 Telegram content
The tag transmits telegrams via the air interface to the reader. After decoding the following information is
supplied to the host:
- Unique Tag ID (UID)
Length 32 bits, LSB first. Can not be set or altered by the user.
- User data
Length 9 bytes. Is reported by the reader in exactly the same format as programmed on the tag. Can be
written to the tag via a proximity 13.56 MHz link using IDENTEC SOLUTIONS’ i-B2 programmer.
- Flag byte
Length 8 bits. Meaning of the single bits depend on implemented tag functionality, in the standard
version these 8 bits are user definable.
- Age Counter
Length 2 x 8 bits. These 2 bytes are 2 cut outs from the tag internal tag age counter which is
incremented by 1 with each transmission.
The low byte is incremented by 1 and can therefore be used to detect missing telegram reception. The
high byte counts millions of telegrams and indicate battery usage. Comparing the actual value to a
predefined maximum remaining lifetime can be calculated.
2.2 Programming
With IDENTEC SOLUTIONS’ i-B2 programmer following data can be written to the i-B2 S tag:
- User Data (9 bytes)
- Flag byte (8 bis)
- Ping rate in steps of 0.5 seconds
In addition the tag can be switched between active and inactive state if needed, i.e. if permanent transmission is
not allowed.