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PROMILL Lecture and Training Session April 11-12, 2006 Fudan University, China INTELLIGENT ROAD LIGHTING Pentti Hautala 2 Present situation Highway authorities and civil servants will dim or switch off road lighting at random 20.7.2015 3 Goal Coherent guidelines will lead to the better activity plans and solutions Savings without losses in traffic safety: - Electricity -- - always optimum level of luminance -no need of maintenance factor Maintenace -control -management -activity planning - 35% - 12,5 % - 30 % Repayment period additional installation costs < 15 % - 20.7.2015 calculated pay-back time 12-14 years reduction of unit prices due to development, increasing demand 4 Starting points Conventionally functional classification of roads and streets is mainly based on traffic flow. Furthermore lighting class will be specified in relationship to the functional class of road. It is to be considered that performance requirements of road lighting can vary with traffic flow of the same road. 20.7.2015 5 CIE 115-1995 Recommendation for the lighting of roads for motor and pedestrian traffic - 5.2 Choice of lighting class - 5.3 Temporal variation of lighting class according to traffic density TECHNICAL REPORT CEN/CR 13201-1 Selection of lighting classes Different but constant values for the road type depending on traffic flow and road conditions 20.7.2015 6 CIE. Division 4. Lighting and signalling for transport Technical committee TC4-44 Management and Maintenance of road lighting Terms of Reference: To revise Publication CIE 115-1995 in such a way that lighting performance requirements may vary depending on actual status of environmental and traffic conditions. 20.7.2015 7 Traffic and road parameters Traffic engineering aspects • Traffic safety • Flow and fluctuations • Control parameters Road conditions • Reflection properties • Wet surfaces • Metering 20.7.2015 8 Hourly flow Tu 28.3.2006 Veh/h Hour Direction 1 20.7.2015 Direction 2 In all 9 Hourly variation factor (q/Q) TU 28.3.2006 Hour 20.7.2015 10 Traffic flow vehicles/5 min. Speed of traffic Kt50 Kehä3 Vantaanportti, LAM nro 23150, 23.3.2006 20.7.2015 Information from the automatic road weather station Wind Visibility Temperature Condition of road surface Kt45, Ilola_R, TSA nro 1036, 28.3.2006 20.7.2015 11 12 Projects of intelligent road lighting 2006 Motorway Helsinki-Turku section Kolmperä-Lohjanharju. 17 km Ring III. 5 km Motorway Helsinki-Porvoo section VästersundomHarabacka. 31 km Vuosaari Harbour Road. 3 km 20.7.2015 13 Ring III. System layout Edelcom software Luxicom control luminaires: -Commands to lum. -Feed Back info Maintenance comp. Connection to site via internet. - Lamp situation - Faults and alarms Internet or Intranet Doston software -Calculates right lighting level -Commands to Luxicom -User Interface -Internet solution Measurements •Traffic flow •Luminance value •Weather condition 20.7.2015 Cabin I Cabin II 14 Data transmission 20.7.2015 ATS road weather station LAM traffic monitoring system L20 luminance meter KI electrical distribution box 15 Structure OLC Luminaire control unit lamppu Electromagnetic ballast PC OLC Luminaire control unit OLC Luminaire control unit lamppu Electromagnetic ballast lamppu Electromagnetic ballast Maintenance ADSL RS 232 cable or fiberoptics Traffic center 20.7.2015 3 phase network Electrical distribution box Modem + Local control unit 16 Ring III luminaires What is needed more for intelligent road luminaire. • One OLC component, which control luminaire. • Installation of the component into column or luminaire. • Component recognizes its own commands from network cable. • Components can be added to old installation, too. 20.7.2015 17 Lamp and dimming Dimming doesn’t reduce lamp life OLC component control nominal lamp voltage Temperature has lower level inside of luminaire, save components After ignition lamps must burn first 10 min at 100% power, after that dimming is possible 20.7.2015 18 Companies in the Ring III project Planning and design • SITO Ltd, Finland www.sito.fi Telemanagement system • Edelcom Ltd, France www.edelcom.fr User interface and control software • Doston Ltd, Finland www.doston.com Luminaires and Project coordinator of control system • Idman Ltd, Finland (Idman is a member of Philips group) www.idman.net 20.7.2015 19 Electronic ballast Electronic ballast save lamp • Nominal lamp voltage has always right level • Power factor is 0,99 Only one component in luminaire, easy maintenance Facilitate dimming for Ceramic Metal Halide lamps. Dimming level down to 50% High Pressure Sodium lamps dimming down to 20% 20.7.2015 20 Motorway Helsinki-Turku section Kolmperä-Lohjanharju 1.System layout Road lighting is radio controlled by 3 clusters (CLC’s) and there are 758 luminaires: 636 pcs ST-250 74 pcs MT 250 48 pcs ST-150 luminaires. DB = Distribution board inc. CLC (cluster)-controller, DSL-connection to the server of Road Administration M = Master-unit in the column Leuci Teorema luminaire 250W SON-T with Metrolight Ltd dimmable electronic ballast and Royce Thompson Ltd RF2-unit (radio controller) ÖSTERKULLA OVERBRIDGE VEIKKOLA INTERCHANGE HISTA INTERCHANGE Towards LOHJA Towards HELSINKI DESIGNER: Trilight, Vantaa, Finland 21 2. Functional structure Basic Functions: •DSL or GSM –connection from controlroom to CLC •Collecting burning hours •Collecting the data of defect luminaires and lamps •Group dimming 40 – 100%, stepless •Comparation of the lamp healthy 20.7.2015 •Photocell if the group control is lost DESIGNER: Trilight, Vantaa, Finland 22 3. Benefits Energy saving even by full power: conventional ballast 284W, electronic ballast 260W Independent of supply tension 170-270V, the first and the last lamp gives the same lumen output Stepless dimming in real time No extra power losses by dimming • Electronic ballast allmost linear from 100 % (260W) to 40 % (120W). Extended lamp life 2 – 3 times Improved lamp color temperature retention and greater color uniformity between lamps 90-95 % lumen output after 20.000 operating hours Total energy saving up to 65% with dynamic dimming DESIGNER: Trilight, Vantaa, Finland 20.7.2015