# Design, Implementation and Power Analysis of
## 3 Results
### Power Analysis of PARSLAD and the Light Bulbs  
An Absolute Native Electronics OLED USB detector which has built-in measurement devices like a voltmeter, ammeter, power capacity tester meter is used for the power analysis of devices. The range of voltage and current is 3.5-9 V and 0-3.3 A, respectively. 2.1 Power Analysis of Varied Scenarios of Pervasive Adaptive Resourceful Smart Lighting and Alerting Device (PARSLAD)  
Details of the analysis of ten varied scenarios of the PARSLAD and with different possible combinations of daylight distribution and residents' auxiliary are provided in Table 6. The table also details the power, annual energy consumed, annual cost in both domestic and commercial conditions. Annual Kilowatt/hour values are calculated assuming that the device operates for 12 h a day for a year, resulting in 4380 operating hours annually. Time of operation is considered 12 h (5 pm to 5 am) in a day because inclusive of all seasons, the sunrise is between 5 am and 6 am while sunset is between 5 pm and 6 pm in India. The cost for the annual operation is calculated in two aspects- domestic (Dom) and commercial (Com). In India, the electricity cost differs for Dom and Com use. In both Dom and Com use, base rates are fixed based on the user consumption, so for commercial use [41], the mean cost is taken as 0.12$ (8 Rupees and 30 Paise) per unit (1 KWh) and for domestic use [42], the mean cost is taken as 0.059$ (4 Rupees and 5 Paise) per unit (1 KWh). For commercial electricity rates, the mean value considering all the distributors is calculated. For the domestic electricity rate, the mean value for cost of \(>\)500 consumption units is calculated as more homes consume more than 500 units. From Table 6, it could be noted that the annual Dom and Com consumption cost of the proposed device is very cheap and could be used in developing countries and interior village people too for effective power savings. 2.2 Annual Power Analysis and Usage Cost of 60 W Incandescent, 8 W LED and 0.5 W LED Light Bulbs Controlled or Not by PARSLAD  
Table 7 charts the power analysis for the 60 W incandescent, 8 W LED and 0.5 W LED bulbs for two major conditions - deprived of PARSLAD and controlled by PARSLAD. Time of operation, domestic and commercial cost are fixed as stated above in Section 3.2.1. \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline \multirow{2}{*}{**S. No**} & \multicolumn{2}{c}{**Illuminance**} & \multirow{2}{*}{**Condition Tested with Arduino**} & \multirow{2}{*}{**Voltage (V)**} & \multirow{2}{*}{**Current (A)**} & \multirow{2}{*}{**Power (W)**} & \multicolumn{2}{c}{**Annual Kilowatt**} & \multicolumn{2}{c}{**Annual Cost**} \\  & & & & & & & **Hour (kWh)** & & **(flu Rs)** \\ \hline
1 & - & Plugging the Arduino to system & & & & & & & \\  & and uploading the sketch & & & & & & & & \\
2 & \(>\)500 & 0.5 W LED bulb off 1 & 5.13 & 0.01 & 0.0513 & 0.224694 & 0.91 & 1.86 \\
3 & \(<\)500 \& \(\&\) 300 & 0.5 W LED bulb dim 1 & 5.05 & 0.03 & 0.1515 & 0.663701 & 2.69 & 5.51 \\
4 & \(<\)300 & 0.5 W LED bulb on 1 & 5.01 & 0.06 & 0.3006 & 1.316628 & 5.33 & 10.93 \\
5 & \(>\)500 & 60 W Incandescent bulb off 1 & 5.14 & 0.02 & 0.1028 & 0.480264 & 1.82 & 3.74 \\
6 & \(<\)500 \& \(\&\) 300 & 60 W Incandescent bulb dim 1 & 5.05 & 0.04 & 0.202 & 0.88476 & 3.58 & 7.34 \\
7 & \(<\)300 & 60 W Incandescent bulb on 1 & 5.01 & 0.08 & 0.4008 & 1.755504 & 7.11 & 14.57 \\
8 & \(<\)500 & 8 W LED light bulb off 1 & 5.22 & 0.01 & 0.0521 & 0.228198 & 0.92 & 1.89 \\
9 & \(<\)500 \& \(\&\) 300 & 8 W LED bulb light bulb off 1 & 5.21 & 0.03 & 0.1563 & 0.648594 & 2.77 & 5.68 \\
10 & \(<\)300 & 8 W LED bulb light bulb on 1 & 5.20 & 0.06 & 0.312 & 1.368312 & 5.54 & 11.36 \\ \hline \end{tabular}  
* Arduino connected to DDR, PIR sensor and relay.  
\end{table} 
Table 6: Power analysis of PARSLAD.