Page 36 - Gi flipbook - October 2018

IGEM NEWS | Young Persons Paper Competition 2018

be certified by a competent person.
This is because the device is regarded FIGURE 6 Flat antenna FIGURE 8 Point antenna
as a lifting appliance, so the Hong
Kong law of Factories and Industrial
Undertakings (Lifting Appliances and
Lifting Gear) Regulations (Cap. 59,
Section 7) was applicable in this case.

CHECK PHASE
To evaluate if the device fulfilled its
design purpose, five field tests were
carried out.
During the field tests, we found that
it was sometimes not possible to
obtain images of the service riser,
which we attributed to the position of FIGURE 7 Position for the two flat antennas FIGURE 9 New position for the antennas
the antenna.
Originally, two flat antennas (Figure
6) were put in two separate positions,
which meant the signal emitter could
not always reach the receiver (Figure 7).
To resolve the problem, one of the
flat antennas was replaced with a
point antenna (Figure 8) so the signal
emitted could be dispersed more
widely. Also, the two antennas were
placed closer together. We believed
these two modifications would
increase the strength of the signal.
In addition, an extra 4kg weight especially in buildings with inaccessible
(Figure 10) was added to line up the podiums and narrow lightwells. FIGURE 10 Extra weight
device’s centre of gravity with the By using this newly developed
centre of rotation, stabilising the device, gas service riser inspections
movements of the device. can be conducted without the need to
access every household, meaning less
ACT PHASE disruption for our customers and
After improving the equipment set up greater levels of customer
and tackling the image transmission satisfaction.
problem, an implementation plan was Finally, the development of this
devised to deploy the gas detection device promotes a corporate image of
device in the field. safety awareness and technological
The implementation plan was divided advancement, telling the public that
into three phases: field testing, on-site Towngas cares about its corporate
training and full deployment. The first mission to provide customers with a
and second phases took place in Q3/4 safe, reliable supply of energy and the
of 2017 respectively, and the third caring, competent and efficient service
phase is currently in progress. they expect, while working to
preserve, protect and improve our
PROJECT BENEFITS environment.
We believe that the newly developed
gas detection device can further CONCLUSION
enhance occupational safety to To sum up, the development of this
front-line staff since it minimises the device has removed many of the
need to work at height. constraints of using a quadcopter
Secondly, we believe the device will because a landing base is no longer
reduce the risk of gas leaks, allowing needed and the inspection can be After modifying the antenna for
Towngas to conduct more inspections, conducted in narrow lightwells. better image signal transmission, the
newly developed gas detection device is
now at the stage of full implementation.
The newly developed gas detection Upon full implementation, we
device can further enhance occupational expect that more inspections will be
carried out without the use of
safety to front-line staff since it scaffolding, protecting the safety of
minimises the need to work at height our front-line staff and minimising the
risk of gas leaks for the public. ■

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