Competition idea

After much consideration, our teachers and Parklogists have to come to a conclusion of making use of heat index for our web map analysis.

Since Singapore has high humidity and hot weather.

An average humidity of 80% and average temperature of 27 degree Celsius. 

May is the hottest month of the year in Singapore, followed by April. 
This is due to light winds and strong sunshine during those months. 
The highest recorded temperature is 36.0 °C (96.8 °F) on 26 March 1998. 
The lowest recorded temperature was 19.4 °C (66.9 °F) in January 1934.

In 2011, 20 soldiers had heat injuries, mostly,heat exhaustion.

Singapore is a little red dots, military defence is important for us which maintains peace and security. Our soldiers have various outdoor training - Jungle Survival, War Game, Live Firing, Route March, Field Exercise, Physical Training & Parade.

Commanders can use present and historical data from meteorological service to visualize heat index in Singapore and to better plan for training. 

For eg, to adjust work-rest cycles, to adjust the training intensity during high heat index hours, compulsory hydration (aka water parades),

 making available more hydration points, limiting direct sunlight exposure. 

This will help to prevent heat injuries.

RH = Relative Humidity

TC = Temperature in Celsius

T = Temperature in  Fahrenheit (°F) 

How we get T is by using the formula below

TCx9/5+32

HIF = Heat Index in  Fahrenheit (°F)

How we get HIF

42.379+(2.04901523*T)+(10.14333127*RH)-(0.22475541*T*RH)-(6.83783/1000*T*T)-(5.481717/100*RH*RH)+(1.22874/1000*T*T*RH)+(8.5282/10000*T*RH*RH-(1.99/1000000*T*T*RH*RH)

HIC = Heat Index in Celsius

How we get HIC

(HIF-32)/1.8

The data result we got from Pasir Ris Park

We decided to post a few important timing of data we collected with one of our sensor.

Discovered some special reading from our sensor and also doubts.

D = Temperature

E = Humidity

F = Noise

G= Light

H = Carbon Monoxide

We placed this sensor on a tree without too much shades (33,44 ,45 grid points)

At 8+am,

Temperature falls between 32.6 to 33 degree Celsius. 

It considers quite high comparing to Singapore's an annual average temperature of 27 degree Celsius.

Singapore has an annual average relative humidity of 80% but we have collected is relative humidity is between 59 - 61%. 

We can only assume that because it is not raining today so the range comes out to be 20% lesser.

From 2  pm onwards, we placed our sensor near the BBQ pit which is quite close to the sea.

At 3+pm,

The relative humidity is way too low and the temperature is extremely high.

It is quite scary that the temperature is 50 degree Celsius.

By referring to the heat index chart, with 50 Celsius and 28 RH, it is serious danger. All physical activities should stop.

However, we have considered the fact that our sensors are kept inside a tiny box which may trap heat or overheated so basically when we are doing our analysis ,we need to take in consideration like this. 

At near 6 pm,

RH increased a little and remained as 31% as sky is getting darker,humidity will increase.

A research about humidity changes from day to night.

"The relative humidity depends not only upon the amount of water vapour actually present in the air but also on the air temperature.In fact,the relative humidity indicates how much is the percentage of saturation of air(with water vapour) for a particular temperature.If it is fully saturated,then the relative humidity is 100 percent. 

If air holds some amount of water vapour at a particular temperature and is unsaturated,then, at a lower temperature,the same amount of water vapour may be able to saturate it.Hence,for the same amount of moisture content in the air, the relative humidity may be less for a higher temperature and more for a lower temperature.Therefore, naturally the relative humidity is less during day time and more during night time."

Temperature decreased by 8 degree Celsius as near 6 pm is about to sunset.

RH increased to 56% which is logically as comparing to what the researcher said.

Temperature dropped to 32.8 degree Celsius with chilling breeze.

Parklogists head to Pasir Ris Park (12HOURS)

A group of enthusiastic poly students aka Parklogists had to wake up at 5 am.

We are fully prepared to spend our entire day here.

It seemed like we were heading for a survival camp.

We were glad that today's weather is perfect for data collection. 

No single sign of raining at all and it's sunny.

Middle zone of Pasir Ris park has more trees than any other places.

To make our day well spend in the park, we definitely bring our laptop along to do work.

Anyway we didn't manage to get a shelter. We were having our picnic on the grass.

We attracted a lot ants,those big ants!

The beautiful sunrise.

This is something we love about nature.

We, Parklogists take part in this competition to maintain the beauty and wish the public can enjoy the good of Pasir Ris Park.

Another stunning view.

This is where exactly we placed our sensor. (in the morning)

Photo of the clear sky.

Apparently we enjoy our day here,

2 pm onward. This tree is next to a BBQ pit

Our project mentor popped by to visit us.

Feel free to watch the video below

https://presentapp.co/p/COq1827GmN

https://presentapp.co/p/70sau1809b

The SLA sensor workshop

We, Parklogists rushed to National Design Centre(NDC) to have our sensors workshop at 2 PM. Before we had headed to there, we had already interviewed some of our classmates how was the sensor workshop. Many of them complained about the hot solder burnt their hands and also more than 4 hours of time they spent there.

  We were excited about the workshop a week ago. Most exciting part of competition is that we get to make our own sensors for FREE! 

  Our process of assembling our sensors turned out to be successful. None of us was injuried. Perhaps we were taking our own sweet time to placing the hot melted metal on the plate with the 390 degree solders. We did not to burn ourselves. Everything is similar to electrical engineering. One Maker Group staff were helpful,if they were not around, we were be staying in NDC till 12 AM midnight. Each item had to be placed at the right spots and could not stick it with overload melted metal otherwise it would trigger short circuit another kind of issues.

  We enjoyed a lot during the workshop. This is something we have never done in our school life. Joining this competition, we are given opportunities to explore new things that we would not try back then.

Feel free to watch the workshop video below which is captured by one of Parklogists.

https://presentapp.co/p/S40634cl5V