ROAD TOPOGRAPHIC SURVEYING SYSTEM
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United States of America Patent
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N/A
Issued Date -
Nov 18, 2010
app pub date -
May 13, 2009
filing date -
May 13, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A road topographic surveying system comprises at least a vehicle, a horizontal angle sensor, an encoder, a micro-processor, a data storage, and display. The vehicle has a wheel with a wheel radius rotatably engaged with road and coupled with the encoder. The encoder generates a rotate signal to the micro-processor at every predetermined graduations of the wheel rotation. Each time the micro-processor receives the rotate signals, acquires a instantaneous horizontal angle value from the horizontal angle sensor thereby to calculate a segment of moving length and a segment of height, and calculate an accumulated height and calculates an accumulated length, stores the accumulated length, instantaneous horizontal angle value and the accumulated height into the data storage, and display the all in the display correspondingly and sequentially.
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