Strata Proximity Systems SPS SDMOD User Manual

Strata Proximity Systems
Surface Display with Integral Silent Zone Transmitter
Users Manual v1.0

2011

Confidential

Strata Proximity Systems Surface Display with Silen Zone Users Manual v1.0

Confidential and Proprietary

October 19, 2011

Strata Proximity Systems, LLC
1769 Jeff Road
Huntsville, AL 35806

1.800.691.6601

Table of Contents

1 Overview .............................................................................................................................3

1.1 Theory of Operation ......................................................................................................3

1.2 Frequency of Operation ................................................................................................4

1.3 Label Information..........................................................................................................4

1.4 FCC Information ............................................................................................................5

2 Operation ............................................................................................................................5

2.1 Installation Information ................................................................................................5

2.1.1 Interoperability Warning ........................................................................................6

2.2 Charging ........................................................................................................................6

2.3 Alerts ............................................................................................................................6

2.4 Maintenance .................................................................................................................6

3 Warranty .............................................................................................................................6

4 Revision History ...................................................................................................................7

4.1 Version 1.0 – October 6, 2011 .......................................................................................7

Patent #’s 7,420,471
5,939,986 and 6,810,353
Patent Pending

Page 2 of 7

Confidential

Strata Proximity Systems Surface Display with Silen Zone Users Manual v1.0

Confidential and Proprietary

October 19, 2011

1 Overview

The Surface Display with Silent Zone Transmitter is part of a complete HazardAvert proximity
warning system from Strata Proximity Systems which provides warnings to both individuals and
to machinery to alert them that the individual has entered too close to an operating piece of
equipment and is in a dangerous situation or that vehicles or machinery are getting close
enough that a collision possibility exists. The Surface Display with Silent Zone Transmitter is
mounted on a vehicle or piece of machinery and is connected to a central control unit.

1.1 Theory of Operation

The functions of the Surface Display with Silent Zone Transmitter are:

 To transmit a 73 kHz “Silent Zone” field around a small portion of the vehicle or piece of

machinery in which the operator is allowed to safely work or enter as part of his normal
activities.

 To provide a visual and audable indication to the operator as to the status of the HazardAvert

system in relation to this particular vehicle or piece of machinery.

The Surface Display with Silent Zone Transmitter is connected to the HazardAvert Central
Controller, which under the control of a microcontroller, generates a 73 kHz signal for
creating a Silent Zone around the area of a machine where the Display and Operator are
located. This 73 kHz signal is connected to the Surface Display with Silent Zone Transmitter
along with other signals via a wire bundle connected to a bulkhead connector on the
housing of the Surface Display. Inside the Surface Display with Silent Zone Transmitter
housing is a wire / ferrite radiator element to which the 73 kHz signal is connected. The 73
kHz signal passing through this wire / ferrite radiator element generates a 73kHz “Silent

Zone” electromagnetic field which encompasses only the small area of the vehicle or

machine in which the operator can safely be during operation. The operator is required to
wear a Personal Alarm Device (PAD) which is another component of the HazardAvert
system which detects and responds to the presence of 73 kHz fields. As long as the

operator is within this “Silent Zone” his PAD will know he is within a safe area. If the

operator exits this Silent Zone safe area, his PAD will function to alert him and other
machines or vehicles equipped with the HazardAvert system of his proximity to dangerous
conditions due to his distance from machine or vehicle hazards. The Surface Display with
Silent Zone Transmitter also indicates to the operator the status of the system via a series
of LEDs. There is an LED which indicates that the system is powered, an LED that indicates if

there is an individual or other machinery close enough to warrant a “Warning” condition

and another LED that indicates if there is an individual or other machinery close enough to

Patent #’s 7,420,471
5,939,986 and 6,810,353
Patent Pending

Page 3 of 7