Device Description HG G-19370ZA | English, Revision 01 | Date: 17.05.2017 | www.goetting-agv.com
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Chapter 2: Introduction
2.3 Intended Use
The inductive guidance sensor HG G-19370ZA is intended for the track guidance of auto-
mated guided vehicles (AGV) along guide wires. The sensor uses two horizontal coils to de-
tect the magnetic field above a guide wire with active current flowing through it and thus
continually calculates the actual deviation from the center of the track. This deviation infor-
mation is output via the CAN bus.
WARNING!
The inductive guidance sensor does not contain functionality to detect obstacles or persons
in front of a vehicle! The vehicle manufacturer has to include suitable safety equipment.
BEWARE!
Interferences as specified in section 3.2.1 on page 10 may lead to inaccurate outputs
whereby the vehicle may leave the track. The vehicle manufacturer has to include function-
ality to detect this and stop the vehicle if needed. As an aid the Detect signal may be used
(see below).
Note
In case the inductive guidance sensor is used for other purposes than specified above or is
modified all warranties against the Götting KG are null and void.
The sensor is only used according to section 2.1 on page 7. The sensor is only mounted,
configured, commissioned, operated, maintained and dismounted by personnel according
to section 2.2 on page 7.
2.4 Functional Principle
A frequency generator feeds a current into a guide wire installed in the ground. Along this
wire an alternating magnetic field is generated. The sensor measures the magnitude of the
induced voltage in two horizontal coils.
Figure 1
Principle of the guide wire track guidance
Frequency
Generator
Vehicle
Inductive Guidance Sensor
Guide Wire
Magnetic Field
Frame
