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Enforcement Technologies Testing Program. Chiu Choi, Ph.D . , P.E. Technical Consultant. Outline. Background DTR radar testing program Lidar testing program ATR radar testing program New testing programs under development. Background.
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Enforcement Technologies Testing Program Chiu Choi, Ph.D., P.E. Technical Consultant OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Outline Background DTR radar testing program Lidar testing program ATR radar testing program New testing programs under development OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Background IACP oversees and operates the Enforcement Technologies Testing Program Funded by the National Highway Traffic Safety Administration (NHTSA) OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Manufacturers-- participation in the testing program on a voluntary basis All participants are subjected to the same standards Their Devices– to be tested to the appropriate published performance specifications Background OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
NHTSA funded the development of the performance specifications. NIST was involved. Currently published performance specifications: DTR Radar, Lidar, and ATR Radar Background OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Conforming Products List (CPL)- a list of devices that passed all the tests specified in their corresponding performance specifications CPL is maintained by the IACP CPL is published. Law enforcement agencies are encourage to purchase devices on the list. Background OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Two laboratories have contracts with IACP to conduct the testing Laboratories are evaluated biannually by IACP with observers from external agencies attending lab visits Instruments are kept calibrated Test results properly recorded and reported Background OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Speed-measuring Device Performance Specifications: Down-the-road Radar Module, DOT HS 809 812, NHTSA, June 2004. Limited to unmodulated CW radars Operate while moving down the road Handhelds DTR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
What are the requirements? §2.1 Manufacturer Provided Equipment §2.2 Manufacturer Provided Information §2.3 Manufacturer Labeling §2.4 Tuning Fork Calibration §2.5 Radar Device Tuning Fork DTR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§2.6 Microwave Transmission §2.7 Environmental Extremes §2.8 Low Supply Voltage Indicator §2.9 Doppler Audio §2.10 Speed Monitor Alert DTR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§2.11 Power Surge §2.12 Speed Display §2.13 Conducted Electromagnetic Interference §2.14 Radiated Electromagnetic Interference §2.15 Speed Accuracy: Field Operation DTR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
What are the tests? §5.1 (Reserved) §5.2 (Reserved) §5.3 Labeling and Operation Tests §5.4 Tuning Fork Calibration Test §5.5 Radar Device Tuning Fork Test DTR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§5.6 Microwave Transmission Test §5.7 Environmental Tests §5.8 Low Supply Voltage Indicator Test §5.9 Doppler Audio Tests §5.10 Speed Monitor Alert Test DTR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§5.11 Power Surge Test §5.12 Speed Display Test §5.13 Conducted Electromagnetic Interference Tests §5.14 Radiated Electromagnetic Interference Tests §5.15 Speed Accuracy: Field Operation Tests DTR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
To get on the CPL – one unit of the model must pass all the tests. To stay on the CPL– CPL Stage II testing on the first 200 units ( at least 90% must pass) Subsequently 6 units per year subjected to Critical Performance Testing (all units must pass) DTR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
DTR Radar testing program Test Components for CPL Stage II and CPT: Tuning Fork Calibration Tuning Fork Transmission Frequency Stability Power Density Low Voltage OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
DTR Radar testing program Test Components for CPL Stage II and CPT: Doppler Audio Internal Circuit Directional (if applicable) Low and High Speed Display Radio Frequency Interference OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
DTR Radar testing program On-going efforts of improvements on the performance specfications: Common output protocol Common control protocol OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Speed-measuring Device Performance Specifications: Lidar Module, DOT HS 809 811, NHTSA, June 2004. Applicable to laser speed-measuring devices transmitting infrared pulses FDA CDRH Class I eye safety handhelds Lidar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
What are the requirements? § 2.1 Manufacturer Provided Equipment § 2.2 Manufacturer Provided Information § 2.3 Manufacturer Labeling § 2.4 Range Accuracy § 2.5 Long Range Lidar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§ 2.6 Beam Characteristics § 2.7 Environmental Extremes § 2.8 Low Supply Voltage Indicator § 2.9 Supply Voltage Tolerance § 2.10 Speed Display § 2.11 Speed Accuracy: Laboratory Simulation Lidar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§ 2.12 Auxiliary-Equipment Interface § 2.13 Conducted Electromagnetic Interference § 2.14 Radiated Electromagnetic Interference § 2.15 Speed Accuracy: Field Operation § 2.16 Vehicle Determination (Lidar Systems Only): Field Operation Lidar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
What are the tests? § 5.1 (Reserved)§ 5.2 (Reserved)§ 5.3 Labeling and Operation Tests§ 5.4 Range Accuracy Test§ 5.5 Long-Range Test Lidar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§ 5.6 Beam Characteristics Test§ 5.7 Environmental Tests§ 5.8 Low Supply Voltage Indicator Test§ 5.9 Supply Voltage Tolerance Tests § 5.10 Speed Display Tests§ 5.11 Speed Accuracy: Laboratory Simulation Tests Lidar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§ 5.12 Auxiliary-Equipment Interface Tests§ 5.13 Conducted Electromagnetic Interference Tests§ 5.14 Radiated Electromagnetic Interference Tests§ 5.15 Speed Accuracy: Field Operation Tests§ 5.16 Vehicle Determination (Lidar Systems Only): Field Operation Lidar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
To get on the CPL- one unit of the model must pass all the tests. To stay on the CPL– CPL Stage II testing on the first 100 units ( at least 95% must pass) Subsequently, 6 units per year subjected to Critical Performance Testing (all units must pass) Lidar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Lidar testing program Test Components for CPL Stage II and CPT: Beam Alignment (Horizontal and Vertical) Target Discrimination Range Accuracy Low Supply Voltage Indicator OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Lidar testing program Test Components for CPL Stage II and CPT: Supply Voltage Tolerance Low-Speed and High-Speed Display Limits (Approaching and Receding) Speed Accuracy (With and Without Perturbation) Pulse Repetition Rate OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Speed-measuring Device Performance Specifications: Across-the-road Radar Module, DOT HS 810 845, NHTSA, Oct. 2007. Limited to automated, unmodulatedCW radars that transmit a microwave beam at a specified angle to the roadway and make allowance for cosine angle effect ATR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
What are the requirements? §2.1 Manufacturer Provided Equipment §2.2 Manufacturer Provided Information §2.3 Manufacturer Labeling §2.4 Tuning Fork Calibration §2.5 Tuning Fork ATR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§2.6 Microwave Transmission §2.7 Environmental Extremes §2.8 Low Supply Voltage Indicator §2.9 Doppler Audio §2.10 (Reserved) §2.11 Power Surge §2.12 Speed Display ATR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§2.13 Signal Processing §2.14 (Reserved) §2.15 Conducted Electromagnetic Interference §2.16 Radiated Electromagnetic Interference §2.17 Speed Accuracy: Field Operation §2.18 Vehicle Determination: Field Operation Speed Measurement ATR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
What are the tests? §5.1 (Reserved) §5.2 (Reserved) §5.3 Manufacturer Labeling tests §5.4 Tuning Fork Calibration tests §5.5 Tuning Fork tests ATR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§5.6 Microwave Transmission tests §5.7 Environmental Extremes tests §5.8 Low Supply Voltage tests §5.9 Doppler Audio tests §5.10 (Reserved) §5.11 Power Surge tests §5.12 Speed Display tests ATR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
§5.13 Signal Processing tests §5.14 Reserved §5.15 Conducted Electromagnetic Interference tests §5.16 Radiated Electromagnetic Interference tests §5.17 Speed Accuracy: Field Operation tests §5.18 Vehicle Determination: Field Operation ATR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
To get on the CPL – one unit of the model must pass all the tests. To stay on the CPL– CPL Stage II testing on the first 100 units, at least 95% must pass (under review) Subsequently 6 units per year subjected to Critical Performance Testing, all units must pass (under review) ATR Radar testing program OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
ATR Radar testing program Test Components for CPL Stage II and CPT: Tuning Fork Calibration Tuning Fork Transmission Frequency Stability Power Density Low Voltage OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
ATR Radar testing program Test Components for CPL Stage II and CPT: Doppler Audio Internal Circuit Directional (if applicable) Low and High Speed Display Radio Frequency Interference OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
ATR Radar testing program Few ATR radar systems have been tested recently Growing interest in developing performance specifications for and testing of automated, modulated radars OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Red Light Camera Systems testing program Development underway Red light camera systems performance specifications approved RLCS simulator verified Working on getting the testing to start as soon as possible OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
Other efforts Working on the scanning lidar performance specifications Interest in distance over time Interest in improving electromagnetic interference testing OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013
QUESTIONS? OIML workshop on the metrology of vehicle speed measurement devices NIST Headquarters, Gaithersburg, MD ▪ July 16-18, 2013