RT-Range
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The RT-Range is used for two functions: accurate (3cm) measurement of the relative motion between two vehicles and precise (2cm) measurement of lane position. All measurements are online, in real-time and output on a CAN bus, including the Target vehicle measurements being relayed in the Hunter vehicle's CAN bus. Verifying the accuracy of radar and other sensors can be performed subjectively. The RT-Range is a precision tool for evaluating these measurements numerically and objectively. Typical applications include adaptive cruise control, accident avoidance and other advanced technologies. Lane departure warning systems are being developed and fitted to vehicles now. The RT-Range can be used to verify their accuracy and to increase the understanding of lane positioning. Vehicle-to-vehicle measurements are performed by measuring the position of the two vehicles and then transmitting the position of the Target to the Hunter using Wireless LAN radio. This is fast, has very low delay and can be used worldwide, license-free. Any additional delays or lost packets from the Target are extrapolated with minimal loss in precision. Wireless LAN can operate over 200m in noise-free environments. The position of the radar (or sensor) on the Hunter can be defined at any location. Similarly, the measurement point on the Target can be defined at any point. There is no need to mount the RT3000 products at special locations in the vehicle. These measurement points are independent of the Lane Position measurement points. Lane Position Measurements There are three steps to measuring Lane Position. First the lane markings are surveyed; then up to 8 lane markings are combined into a map; finally the actual vehicle position is compared to the map. This leads to exceptionally accurate and reliable Lane Position measurements. All the tools to survey the lane markings and build the map are provided. The measurements from three points in the vehicle are available simultaneously. This allows the system to test several sensors at the same time. The RT-Range automatically selects the correct lines in the map and measures to them. The RT-Range also computes the reference distance along the map so that graphs can easily be overlaid. Fast Installation The RT-Range can be installed quickly into a vehicle. Training is simple and the system is very easy to use. Results can be obtained within hours of receiving the equipment. On-site training can be provided to help engineers get to work quickly. Accurate Specifications Technical Specification for Vehicle-to-vehicle Measurements
Longitudinal Range ±200m 0.03m Lateral Range 0.03m Resulting Range 0.03m Longitudinal Range Rate 0.02m/s Lateral Range Rate 0.02m/s Resulting Range Rate 0.02m/s Resulting Yaw Angle 0.1° Technical Specification for Lane Measurements
Lateral Distance to Lane ±30m 0.02m Lateral Velocity to Lane 0.02m/s Lateral Acceleration to Lane 0.1m/s² Note: More detailed specifications can be found in the RT-Range User Manual The RT-Range comes with Windows Software. The software surveys the lines, makes the maps, configures the RT-Range and provides real-time measurements on the PC screen. RT-Range Survey Trolley | ||||||||||||||||||||||||||||||||||||||||||||
<3 cm Accuracy
