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Analytic Tools: Added software analytic tools for real time evaluation and debugging of each critical system component to assure system performance, to assist the operator in identifying and correcting any component issues, and to provide tools for the ongoing improvement of the system.
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Tracking System: Fine tune the tracking system to improve system ability to minimize the effects of motion.
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Sunlight Effect: Added a robust method to compensate for sunlight influence.
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Concrete Surface: Concrete surfaces present lower contrast for the strip identification sub-system – new software functions on the sub-system to handle this condition.
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Broken Line: Broken line measurement has heretofore provided a challenge. With the intermittent and very short time capture period, some inconsistency in the tracking capability was noted. Leetron has subsequently provided a dual and coexisting methodology for tracking both the solid and intermittent lines.
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RRPM: Develop functionalities to detect and remove RRPM from collected data.
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Low Retroreflectivity: Refine the system to increase the ability to measure under low retroreflectivity conditions. Tasks included a new lighting configuration to increase contrast between the pavement and strip; adding and modifying software functions to detect strip location; optimizing the measurement system for low retroreflectivity conditions.
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Curve: Evaluation and fine turn the system’s ability to measure under road curve conditions.
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Larger Bounce: While the system was able to handle motion, there would be a point where the bounce was too large for the tracking system to handle. This condition would cause variation of measurement. To solve this issue, new software functions were added to detect the large bounce condition and remove those measurement points.
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Sway Driving: While the system is designed to be driven at the center of a lane, sway during driving is inevitable. More testing reviewed higher than expected variations in some conditions. By fine tuning the procedures, the issue was overcome.
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Stripe Location Sub-System: Re-design of the stripe location identification system to increase the ability to find stripes at sunlight and dark conditions.
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Auto Calibration Option: Addition of an auto calibration option used to improve the measurement consistency.
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Voice Command: Added voice commands control.
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Overhead Prevention: Implemented a recovery method to deal with overheating issues.
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Power System: An upgraded electrical power system.
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Temperature Controls: Added temperature controls on the measurement unit.
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Measurement Unit Safety Feature: Added a hydraulic system to move the measurement system vertically by operator command. The situation is operational in a “down” position, that is, close to the roadway. Where the vehicle enters a steep incline, the hardware is susceptible to collision with the roadway. With the lift, the operator can raise the hardware out of harm’s way where appropriate.