For collecting the advantages and avoiding the disadvantages of the surveying instruments, integration philosophies are introduced. GPS is dependent system and it could be stopped or changed any time, then the user will not benefit from it. Inertial surveying system is independent system but still expensive with respect to the users. That is why many research centers try to use Dead Reckoning (DR) tools as an alternative system in navigation. Accuracy and cost are the main factors should be regarded when producing new product. This paper introduces a new created-local navigation positioning system using Rotary Shaft Encoder sensor as dead reckoning tool. DR system does not require GPS, beacons, or landmarks to determine the position. Shaft Encoder sensor depends on counting the number of pulses. The new created system is attached to a bicycle as simple vehicle during the experimental tests. Shaft Encoder sensor 500 pulse used to compute distances (odometer), after counting pulses per specific time, they are converted to partial distance related the radius of bicycle wheel at synchronization time also with another encoder 360 pulse to sense the directions (digital compass) by measuring the deflection angles and summation these angles to represent the direction of bicycle. The calibration tests done by twice, first calibration done into lab and the second time in the field.
A circle is drawn in a paper sheet which is divided into 8 sectors and the sensor is set in the center of the circle and the readings are taken at each sector. Second test calibration done in the field by determining the distance between two points and moving the bicycle in that path and taking the readings and computing the standard deviations of that path.
The initial tests are done in study areas. The first one was 65m length path and some errors appeared. Error sources are investigated and reduced by filtering data on software LABVIEW. The experiment is repeated on the same path and the results are improved. Finally another test is made in the study area 2 with 200m and 800m lengths.
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