Device Description HG G-98780-A | English, Revision 16 | Date: 15.07.2021
7
Introduction – Chapter 2
2
Introduction
The described antennas are especially suited for outdoor applications, as the elec
-
tronic units are sealed within the antenna cases. All important settings, adjustable
values and software updates can be effected via a serial interface.
Unlike Transponder Positioning System S_I13933 (128 kHz operating frequency),
Transponder Positioning Antenna HG G-98780-A is operating at 13.56 MHz. This en
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sures sufficient frequency separation to interference sources such as, e.g., drives,
power converters and switching power supply.
Both systems supply a similarly structured output format in which additional system
information can be configured by the user. This information can, for example, be
saved in a visualization system and enables statements about the condition and
availability/ accessibility of the transponders and antennas. This system description
applies to devices with the firmware 98780B2 version 1.06 and higher.
2.1 Accessories
The following accessories are available for the one-dimensional Transponder Posi
-
tioning Reader HG G-98780-A:
Figure 1
Components
1.
Transponder reader with preamplifier and interpreter HG 98780-A with different
interfaces (see Table 2 on page 8)
2.
Transponder HG 70661 (on the pavement)
3.
Optional interface HG 06150-A serial/parallel converter
4.
Optional desktop reading and programming unit HG 81830VA (not shown in
picture)
2.2 Functional Description
As the antenna passes over the transponder, it energizes the latter with an energy
field of 13.56 MHz. The transponder returns its code through frequency modulation
to the antenna. An additional coil generates the positioning pulse. The interpreter
which is integrated within the antenna decodes the transponder code.
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