Explain the Internet of Things and list three IoT devices.
Explanation of Solution
Internet of Things Internet of Things is the idea of connecting all objects, whether having computational capabilities or not, to connect, gather and exchange data among each other with the help of sensors, software, and hardware for gaining efficiency, simplicity, economic benefits, and reduced human efforts in work processes.
There are a number of uses for which Internet of Things can be leveraged such as monitoring and tracking data, time tracking projects, application that raises money and such other cases.
The research shows that the number of IoT devices is increasing year after year and it is predicted that there will be about 30 billion devices communicating by the year 2020.
IoT devices are embedded with technology that communicate and interact over the internet which can be monitored and controlled remotely.
Imagine you wake up at 8 am in the morning by an alarm clock to go to work by a train on daily basis. At some day, your train is cancelled, and you must drive to work instead which you are unaware of. Driving to work takes longer and you would have needed to wake up earlier to be on time. Also adding on it there has been a major accident on the road the drive will be slower than usual. IoT enabled devices can help in such scenarios to be on time the next working day. An IoT-enabled alarm clock would adjust itself based on the factors and ensure that you reach work on time. It will calculate the driving distance and check for alternate routes and calculate the time you need to wake up and accordingly will set an alarm for that time.
The IoT is reaching further into our lives to help improve performances of individuals. Let’s list some of IoT devices which are in use today:
Smart Yoga Mat: Smart yoga mats can enhance the yoga experience of user by providing him feedbacks on number of calories burned, yoga postures and guiding on new postures.
Smart Refrigerator: A smart refrigerator can keep track of all the items in the stock, keep information on which are fresh or not, which are required to be purchased in near future and suggest the user on his/her smart phone regarding future purchase requirements.
Smartdiapers: Smart diapers can help in monitoring the baby’s urine for infection, dehydration or kidney problems before any future symptoms are seen.
Conclusion The Internet of Things connects any device to the Internet and other connected devices. IoT is a network that collects and shares data and is used to gain efficiency in various day to day working.
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Chapter 1 Solutions
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- 50mV and 10kHz from the function generator to the input. The mulitmeter postive is connected to the output and negative to a ground. Is the circuit connected correctly? Yes or No. Does the reading look correct? I don't need calculations but will take them. I just need to know if the connection is right. Connect a signal generator to the input and set it for 50 mV Sine wave with a frequency of 10 kHz. Connect the output to a multimeter set to RMS voltage. Record the output voltage and frequency in the following table. Repeat the measurement for all given frequency values in the table.arrow_forwardThe input reactance of an infinitesimal linear dipole of length A/60 and radius a=A/200 is given by Xin = – 120 [In(€/a) — 1] tan(ke) Assuming the wire of the dipole is copper with a conductivity of 5.7 x 10' S/m, determine at f = 1 GHz the (a) loss resistance (b) radiation resistance (c) radiation efficiency (d) VSWR when the antenna is connected to a 50-ohm linearrow_forwardExample Solve the octic polynomial 2x⁸-9x⁷+20x⁶-33x⁵+46x⁴-66x³+80x²-72x+32=0 Solution Divide by x⁴ 2x⁴-9x³+20x²-33x+46-66/x + 80/x² - 72/x³ + 32/x⁴=0 Combine and bring terms 2(x⁴+16/x⁴) - 9(x³+8/x³) +20(x²+4/x²)-33(x+2/x) + 46= 0 Let use substitution Let x+2/x =u (x+2/x)²= u² x²+2x*2/x + 4/x² = u² x²+4/x²= u²-4 (x+2/x)³= x³+8/x³+3x*2/x(x+2/x) u³= x³+8/x²+6u x³+8/x³= u³-6u (x²+4/x²)²= x⁴+2x²*4/x² + 16/x⁴ (u²-4)²= x⁴+16/x⁴ + 8 x⁴+16/x⁴ = (u²-4)²-8 x⁴+16/x⁴ = u⁴-8u²+8 2(u⁴-8u²+8)-9(u³-6u)+20(u²-4)-33u+46=0 Expand and simplify 2u⁴-9u³+4u²+21u-18=0 After checking (u-1)(u-2) Are factors Then 2u²-3u-9=0 u=3, u=-3/2 Assignment question Solve the octic polynomial 2s⁸+s⁷+2s⁶-31s⁴-16s³-32s²-160=0 using the above example question, please explain in detailarrow_forward
- please explain each method used, thank youarrow_forwardb) Another waveform g(t) is defined by =0 t≥0, α>0 otherwise g(t)= At exp(-at) and is plotted in Figure 1 (for representative values of 4 = 1 and α = 1). g(t) 0.4T 0.3+ 0.2 0.1+ 2 0 2 Figure 1 8 c) Show that its amplitude spectrum is |G(@)| = - A (a²+0²)² Describe briefly, with the aid of labelled sketches, how changing a affects the waveform in both the time and frequency domains. d) Deduce the Fourier transform H(@) of h(t) = g(t)+g(t+b)+g(t-b) and calculate its DC amplitude H(0).arrow_forward"I need an expert solution because the previous solution is incorrect." An antenna with a radiation impedance of 75+j10 ohm, with 10 ohm loss resistance, is connected to a generator with open-circuit voltage of 12 v and an internal impedance of 20 ohms via a 2/4-long transmission line with characteristic impedance of 75 ohms. (a) Draw the equivalent circuit (b) Determine the power supplied by the generator. (c) Determine the power radiated by the antenna. (d) Determine the reflection coefficient at the antenna terminals.arrow_forward
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- b) Another periodic waveform is defined by T c) g(t)= T with g(t+mT) = g(t) and m is an integer. (i) Sketch g(t) over two full cycles in the time domain, labelling the axes. (ii) Derive the formulae for the complex Fourier coefficients c₁ for g(t). For a periodic waveform h(t), if its complex Fourier coefficients are T T when n is odd T 2n²² T 4nn when n is even and not zero 4nn please derive the first five non-zero terms of the real Fourier series for h(t).arrow_forwardQ3)α) f(t) = (-+- 1 Isto f(t+mT) = f(t). L+- I Ost ST integer (i) sketch f(t) 2 full cycles time domain. (labelling the axis). (ii) Derive the formula for the real fourier Coefficients (i) Real Fourier series f(t), first 5 non-terms. an bn for f(t).arrow_forwardQ3. a) A periodic waveform is defined by T 3 0≤t< f(t) = SIarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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