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v5.20 - Classic DocuShare Home - Trimble

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J External Sensors<br />

J.1 Introduction<br />

This appendix provides examples of how to configure and use a<br />

variety of external sensors. Some of these examples refer to real<br />

sensors while others use hypothetical sensors to illustrate different<br />

aspects of the Asset Surveyor software’s external sensor capability.<br />

Note – <strong>Trimble</strong> provides no specific endorsement of the products<br />

named in the following sections. Additionally, <strong>Trimble</strong> provides no<br />

warranty or guarantee as to the ongoing performance of the named<br />

sensors with any <strong>Trimble</strong> GPS system. The named sensors have each<br />

been tested by <strong>Trimble</strong>, but as we have no control over different<br />

hardware or software versions, we cannot accept any responsibility<br />

for ensuring that these sensors continue to work with <strong>Trimble</strong><br />

equipment.<br />

J.2 Criterion Laser Rangefinder (used for Measuring<br />

Heights)<br />

The Criterion 300 and 400 laser rangefinders can be used to<br />

automatically record offsets for features. They can also be used as<br />

external sensors for measuring the heights of geographical features<br />

(for example, trees, buildings, and so forth).<br />

When operating in HEIGHT mode, the Criterion 300 rangefinder<br />

emits data messages of the following form:<br />

$PLTIC3,HT,,*<br />

CR<br />

LF<br />

For example, a height of 16.68 meters is transmitted as:<br />

$PLTIC3,HT,16.68,M*2B<br />

CR<br />

LF<br />

404 TSC1 Asset Surveyor Operation Manual

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