Posted on by Judy

Exercise F7 a. You are requested to develop a pc based system for measuring the temperature of a classroom and transmitting and displaying the data on a website in the internet. Propose a suitable system connection topology to achieve this. Your system must include the following (i) the sensor used, (ii) data acquisition system (ii) Local PC and (iv) Remote Server Cloud PC.Label the components that you used. Discusses your main concern consideration in developing the above system

As per the provided requirement our main aim is to save the energy cost and to reduce energy usage. This system hopefully will be able to provide a web user interface for any user to access the temperature readings. The network is the combination of data gateway or coordinators. It will help to monitor temperature of nodes allotted in specific areas.
We will use in this system Ad-hoc sensor network over any WLAN / cellular network. Because it directly does wireless communication which gives permission to data transmits among the sensor nodes. In the below given diagram we are trying to portrait the network system.
https://d2vlcm61l7u1fs.cloudfront.net/media%2F7b2%2F7b2408f5-0ac7-4f18-ba64-a176029ee355%2Fphpn6VupF.png
Now to transmit the data between client to end user computer / devices let us take a look at the below diagram:
https://d2vlcm61l7u1fs.cloudfront.net/media%2F941%2F941f2fb0-1ace-4eba-bf25-5f203e58162d%2FphpGgye4N.png
It is combined of a client computer which provide web user interface to the system, a web server and a coordinator as a data collector and numerous end devices that will bring up those sensor readings. The coordinator works as a center processing unit function. Thus we can consider that it figures out as a star topology, which gain all the readings from all the end users / devices.
The major 3 contents of these systems are:
User interface: These communicated with the user and display the output in the web browser.
Coordinator: It is the center processing unit function, it gathers the the readings from the sensors back to the users.
End device: Those devices wait for data reading request command from the coordinator, if received one then respond with the value from the sensor.
 
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