Transcript Slide 1
OIML TC7/SC4 NIST 16-18 July 2013
Australian National Speed Measurement Program: Technology, Type Approval, Verification
Eur Ing Dr Richard Brittain LLB
Manager, Legal Metrology Authority Appointments
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Introduction
Regulation of vehicle-speed in Australia
Pattern approval testing criteria under discussion
Field calibration of vehicle speed measuring instruments
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Introduction
Chartered Engineer/Physicist/Scientist Solicitor and Barrister Supreme Court of News South Wales ~21 years in legal metrology Manager, Legal Metrology Authority Appointments NMI division of DIICCSRTE
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Introduction
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Same size as USA (minus Alaska) Population ~23 million Federation of States (like USA) 8 ‘States’ (6 States + 2 self governing Territories)
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Constitution specific responsibilities – Commonwealth - residual States (like USA) Inverse of Canadian constitution?
Common law country (like USA) – presumption of innocence and adversarial Regulation of traffic speed - State responsibility
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Commonwealth – through NMI gives effect to international treaty obligations wrt measurement Treaty of the Metre - 1947 OIML Convention - 1959
National Measurement Act 1960
(Cth)
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Cairns Regulation of vehicle-speed in Australia Townsville
Commonwealth – through NMI gives effect to international
Springs
treaty obligation wrt measurement
Rockhampton Hervey Bay Toowoomba Maroochydore BRISBANE Southport Lismore PERTH ADELAIDE Warrnambool Bendigo Geelong Wagga Wagga CANBERRA Coffs Harbour Dubbo Orange Albury Armidale Tamworth Port Macquarie Newcastle Gosford SYDNEY Wollongong Queanbeyan / Kingston MELBOURNE Bairnsdal Warragul
http://www.measurement.gov.au
Ulverstone Launceston HOBART
OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
National Measurement Act 1960
(Cth) Australian legal units of measurement (ALUMs) reflect SI units into Australian law Sole legal units of measurement for physical quantities Veracity of legal measurements – ALUMs
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Traceability to ALUMs – legal traceability ALUMs realized by standards Australian primary standards of measurement Verification Australian secondary standards of measurement reference standards of measurement etc
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Veracity of legal measurements – ALUMs by means of...
reference to...
comparison with...
derivation from...
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Standards of measurement Certified measuring instruments Australian certified reference materials Combinations of one or more
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
National metrological control Measuring instruments in ‘use for trade’ – determine consideration in respect of transaction; or amount of a tax
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
National metrological control Legal Measuring instruments – determine physical quantities law enforcement purposes demonstrating compliance (or otherwise) with legal limit (State or Commonwealth) in issue in litigation
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
National metrological control Metrological control system pattern (or type) approval Conformity to type auditing (CTT) Certification/verification Speed – certified measuring instruments
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
National metrological control Metrological control system pattern (or type) approval conformity to type auditing (CTT) certification/verification
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
National metrological control Measuring instruments in ‘use for trade’ mandatory metrological control by Commonwealth pattern (or type) approval conformity to type auditing (CTT) verification + mark (generally or batch certificate)
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
National metrological control Legal measuring instruments – inc. speed national (Commonwealth) metrological control optional pattern (or type) approval conformity to type auditing (CTT) certification - mark and certificate certified measuring instruments
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
National metrological control Certificate – pattern approval CMI, ACRMs, RSM etc may be received in evidence in: State courts Commonwealth courts any proceeding authorized to receive nod examine evidence
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
National metrological control Certificate – pattern approval CMI, ACRMs, RSM etc taken to be correctly issued signed by the purported signatory signatory taken to be authorized unless the contrary is established
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Current situation Regulation of traffic speed State law and regulators police roads and traffic authorities
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Current situation Development of national measurement/legal metrology system/infrastructure Under discussion with State regulators Pattern approval based on revised OIML R91 unless not practicable; or not in the ‘national interest’
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Current situation Some engagement by States with national infrastructure Use of legally traceable standards Fitness for purpose (design/pattern/type) ascertained by each jurisdiction not based on OIML R91
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Current situation Requirements/criteria for fitness for purpose jurisdiction specific criteria experience (reputation?) Australian standards
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Current situation Standards Australia - criteria AS 2898
Radar speed detection
Part 1
Functional requirements and definitions
Part 2
Operational procedures
AS 4691
Laser-based see detection devices
Part 1
Definitions and device requirements
Part 2
Operational procedures 25
OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Current situation NMI input to revision of OIML R91 Based on discussions: traffic regulators measuring instrument suppliers pattern approval criteria pre-R91 revision aligned with revised R91
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Current situation NMI draft pattern approval requirements Under discussion: format - OIML B6-2
Directives for OIML technical work. Part 2: Guide to the drafting and presentation of OIML publications
testing - OIML D 11
General requirements for electronic measuring instruments 27
OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Current situation NMI draft pattern approval requirements Scope?
narrow or wide?
all at once or staged ?
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Regulation of vehicle-speed in Australia
Challenges National metrological control system adoption treaty obligations start date transition legal process
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
general requirements/reference conditions general and environmental (climatic) disturbances and influences mechanical disturbances and influences electrical, electromagnetic and radio frequency disturbances electrical, mains power supply disturbances and influence electrical, battery power influences other performance tests technical requirements
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
General requirements speed kilometres per hour (km/h) time Coordinated Universal Time (UTC) + appropriate offset scale interval 1 km/h range 30 to 250 km/h MPEs ±2 km/h up to 100 km/h then ±2% pattern approval testing; ±3 km/h up to 100 km/h then ±3% field certification
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
Reference conditions ambient temperature 20 °C ±2 °C relative humidity 30 to 70% atmospheric pressure 86 kPa to 106 kPa power voltage 230 V +10% -6% - frequency of 50 Hz or as are specified in the certificate of pattern approval
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
General and environmental (climatic) disturbances and influences dry heat (non condensing) - OIML D11 severity level 3 cold -10 °C for 2 hours - OIML D11 severity level 2 damp heat, cyclic (condensing) - OIML D11 severity level 2 water - OIML D11 severity level 2 sand and dust - OIML D11 severity level 1
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
Mechanical disturbances and influences vibration (random) - OIML D11 severity level 1 vibration (sinusoidal) - OIML D11 severity level 1 mechanical shock - OIML severity level 2
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
Electrical, electromagnetic and radio frequency disturbances radiated radio-frequency electromagnetic fields 80 – 1400 MHz or 3 GHz/6GHz if possible - OIML D11 severity level 3 conducted radio-frequency electromagnetic fields - OIML D11 severity level 3 electrostatic discharge - OIML D11 severity level 3 bursts (transients) + surges on signal, data and control line OIML D11 severity level 3
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
Electrical, mains power supply disturbances and influences AC mains voltage variation - OIML D11 severity level 1 AC mains frequency variation - OIML D11 severity level 1 AC mains voltage dips, shorts interruptions and voltage variations - OIML D11 severity level 3 bursts (transients) on AC and DC mains - OIML D11 severity level 3
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
Electrical, battery power influences low voltage of internal battery - OIML D11 severity level 1 power from external 12 V and 24 V road vehicle batteries (if applicable) - OIML D11 severity level C for 12 Volt batteries and level F for 24 Volt batteries) established whether any accompanying “flash” system was activated on each simulation
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
Other performance tests aperture setting of image capturing component (if applicable) flash rate (if applicable) mounting of illuminators - a pole or bracket representative of mounting hardware normally used for operational purposes
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
Other performance tests aperture setting of image capturing component (if applicable) flash rate (if applicable) mounting of illuminators - a pole or bracket representative of mounting hardware normally used for operational purposes
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
Technical requirements requirements for construction security of operation protection against fraud ease of reading materials and construction adjustment and correction
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Pattern approval criteria under discussion
Technical requirements installation conditions rated operating conditions - at least -10 °C to +60 °C marks and inscriptions - uniquely identified /pattern approved/certified indicating devices – additional/alternative approved certification marks - in accordance with relevant legislation
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Field calibration of vehicle speed measuring instruments using precision radar/lidar
Proposed national metrological control system pattern approval (conformity to type (CTT) auditing) certification – marked and certificate issued ‘certified measuring instruments’
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program National Measurement Legislation SI Units Australian legal units of Measurement General Conference of Weights and Measures (CGPM) Second Level Standards Australian Primary Standards First Level Standards National Measurement Institute (NMI) Australian Secondary Standards State Primary Standards of Measurement Reference Standards Third Level Standards Working Standards NATA Laboratories and legal metrology authorities Measurements in industry, commerce and the community
OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program national pattern approval standard pattern approval testing pattern compliance National Instrument Test Procedures initial certification/verification subsequent certification/verification use for legal purposes (legally traceable measurements)
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program OIML treaty Metre treaty ALUMS National Measurement Legislation Pattern Approval Pattern compliance Certification/verification Legally traceable measurements SI units Australian Measurement standards
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State Primary Standards of Measurement SI Units Australian legal units of Measurement Australian Primary Standards Australian Secondary Standards Reference Standards Working Standards Measurements in industry, commerce and the community OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program OIML treaty Metre treaty ALUMS Pattern compliance National Measurement Legislation Pattern Approval Certification/verification Legally traceable measurements SI units Australian Measurement standards
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Field calibration of vehicle speed measuring instruments using precision radar/lidar
Certification – field testing provides additional public confidence over and above bench testing/simulation based on manufacturer’s instructions legally traceable to ALUMs
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Field calibration of vehicle speed measuring instruments using precision radar/lidar
Certification – Field testing Field testing directed vehicles speed measured by precision radar/lidar MPE ±3 km/h or 3% accuracy (uncertainty) of field testing ~ ± 1 km/h precision radar or lidar theoretical limit of accuracy ≥0.01 km/h
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Field calibration of vehicle speed measuring instruments using precision radar/lidar
Certification – Precision radar range 0 to 99.9 km/h resolution 0.1 km/h no leading digit display over 99.9 km/h accuracy be increased by: increased internal oscillator stability (external oscillator?) reduced computation truncations and algorithm errors
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OIML TC7/SC4 NIST 16-18 July 2013 Australian National Speed Measurement Program
Field calibration of vehicle speed measuring instruments using precision radar/lidar
Certification – Precision lidar display resolution currently 1 km/h calculated resolution 0.1 km/h range up to 320 km/h greater accuracy requires accessing and using pre-display data
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National Measurement Institute Bradfield Road West Lindfield NSW 2070 Australia Phone: + 61 2 8467 3600 Email: [email protected]
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