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1) Manual operation
of switching on/off
In many major and big cities the street light system is operated
manually by using day and night condition to switch on and off. The
street light will be switched on at certain time in the evening when
the sun set and the intensity of light is low and automatically
switched off the next morning when there is enough light outside.
2) Energy wastage
The present system leads to high energy waste especially electrical
energy. Street lamps are being switched on even on the
daylight specifically during early morning and before dusk due to
timer setting. This leads to unnecessary usage of energy
3) Manual monitoring
There
is no advanced monitoring technology thus any failure or damage on
the lamps can be known only when there is a report on it. The
current state of the lamps only can be identified when there is any
maintenance works done.4) High operation and maintenance cost
The
use of multiple street lights in one city demands more manpower
for monitoring and maintenance purpose. Despite of having more
workers to work on monitoring, the maintenance of series of
street lights is proved not to be easy and cost demanding.
Due to high electrical energy used the operation costs also
increasing. Absence of real time off-site monitoring also leads
to failure to detect early stages of lamp's damage hence
resulting in high maintenance cost.
Hence, a system which can be switched on if there is any
walking person or moving vehicles such as bicycle in the sensing
range area
need to be constructed in order to improve the energy efficiency and
sustainability of the system.
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