Wuhan mount for 150 intelligent street lamp, the light now streets of street lamp light up every urban roads, but recently, there are a number of citizens reflect, since winter, getting up earlier and earlier, and dark light later and later, the road of street lamp felt on later off early, is there a standard to the street lamp switch time?
Local reporters to interview with related departments, reveal the wisdom behind the street lamp & other;
Mystery science & throughout;
The lights: the opening and closing is a systems engineering, and have three methods to adjust lamp switch, which is very scientific intelligent control of daily use.
street light after the winter of Internet users reflect on later off early
in optical valley of min reflect to our newspaper, said Mr Winter day later and later, but between the high and new avenue and high acoustic optical valley road 4, but it is closed at 6 every morning many street lights, at this point it is dark, inconvenience to pedestrians and vehicles.
Late winter, street lamp can pass?
What time should switch
street lamp?
Reporter interview a dozen people, most people believe that it's getting dark street lamp should be open, the morning will be closed, but specific to a few a few minutes, they also say not clear.
citizen wu ferry their children to school in the morning and evening school, carefully observed: the street lamp switch every day time is not fixed, there are a few minutes of time lag.
according to the construction of hankou road as an example, the reporter observed, in recent days, street lights at night time is roughly 20 points, at 5 p. m. at this point it is just dark;
Turn off the lights when time in about 7 in the morning, it's coming on, don't need to street lighting.
lights & other;
Schedules & throughout;
Have a scientific judgment
according to the light automatically adjust the
the seasons, winter day short night long.
What on the basis of street lights turned on time?
13, a reporter from the city street light solution to the management service center, of more than 180000 street lamp in the centre of the city urban management of opening and closing time every day has a very scientific intelligent control, open, turn off the lights and time have a scientific judgment.
wuhan street lamp intelligent monitoring center is in the heart of the city street lamp management, see the reporter walks into the center, the city street light distribution on a big screen at a glance, all kinds of monitoring data constantly flashing.
A center director pointed to the screen & other;
Small sun & throughout;
Mark tells a reporter, it is light monitoring data, the street & other;
Schedules & throughout;
According to the illuminance automatic adjustment.
the original, the center has four monitoring stations in three towns of wuhan, light every half minutes real-time acquisition data, in order to meet the road lighting minimum standards of 20 lux (
Light unit, the normal light reading books for 50 to 100 lux)
As a benchmark, when the light is lower than 20 lux, street lamp intelligent monitoring center to the city of more than 2000 lamps dedicated transformer internal monitoring terminal sends turn on the light instructions, and sent to turn off the lights when light is higher than 20 lux instructions.
for the summer, the summer night, bright dark early, according to the switching time of the light lamp is approximately 30 points and 7 PM at five in the morning;
Switching time of the winter lights at 5 PM is roughly 20 points and 7 in the morning.
365 days a year, almost every day time is different, even the adjacent two days, time also has a small difference.
as for the public thinks the street light open and close late early winter, exclude street lamp fails, usually each individual feel different.
it is known that wuhan is domestic first USES the street lamp intelligent electric city, if the intelligent electric fault occurs, the street lamp intelligent monitoring center and on the basis of sunrise, the sunset time to determine the second plan of street lamp switch, sunrise, sunset schedule every day is different, so as to ensure precise street lamp switch.
Finally the third set of solutions for special weather & ndash;
—
Manual switch.
on July 22, 2009, wuhan encountered a rare total solar eclipse, host city street lamp management service center is ready to deal with the plan ahead of time, when all of a sudden come HeiXia, staff manual open urban street lamp, safe to deal with the emergency.
street lamp fault will & other;
Throughout early warning &;
large area lights out 24 hours restore
wuhan street lamp intelligent monitoring center director, told reporters that the intelligent monitoring system not only controls the lights turned on time, also by every street lamp intelligent monitoring system, once the road has a street lamp fails, the monitoring center screen will report to the police.
the reporter sees, the monitoring center, according to a record on the screen on December 13 morning, 01 hankou-beijing avenue no load current transformer wire zero line, the street lamp failed transformer management.
On duty personnel immediately notify maintenance personnel to site maintenance.
in addition, the city service center hotline launched a street lamp, street lamp management personnel on duty 24 hours, answering all the citizens of repair service;
Citizens can also by reflecting street lamp power supply line fault.
City street lamp management service center: the street lamp fault 24-hour repair of large area, sporadic fault repair within 48 hours.
