This is a simple guide on how to use our portal. We will also be writing other guides about how to connect devices for the first time.
What is the Exploratory?
The IoT@School exploratory is an online resource designed to bring the Internet of Things (IoT) concept into the classroom through device data sharing and collaboration between schools, teachers and students worldwide. The exploratory provides a collection of live and historic sensor data that can be analysed using graphs and data points to enhance the practical learning experience.
Section 1 (Finding Data)
There are two types of account that we offer;
- Free Access without Login
- User Accounts
The first step to viewing data is to find the data you want. To do this you need to go to our Exploratory page at https://exploratory.sciencescope.uk/exploratory/ This is also located in the navigation called “EXPLORATORY”
The first way to find devices is to use the map. You can click on the circle icons which will then automatically zoom you in. You also have all the standard map controls such as zooming in and out using a mouse scroll wheel. You can move the map by dragging. These features are fully compatible with most mobile devices.
Once you can found the device you want and click on it. The circle will disappear and will show each sensor as a star icon. You can then click on this star icon to show some basic data including some meta data. A link will also appear that will allow you to view the device since midnight. This will now download and display the data. See section 2 for viewing data.
Under the map on the EXPLORATORY page under the title “Build Graphs” are two tabs. The first tab is where you select the device or devices you want to view. This tab is split into two sections “Live Devices” and “Historic Devices”. The list of devices is updated every 10 minutes on the exploratory (This does not affect the data rate of a device which could be uploading every minute). Also, note that the page won’t automatically refresh.
The Live devices list will contain devices that have uploaded data within the last 15 minutes. Historic devices will show devices that haven’t uploaded anything within 15 minutes and has uploaded within the last 30 days.
To get data from the devices you need to select a device by using the tick box to the left of the device name. In this example we will be using “ScienceScope Office Weather Station 1102” and “Weston-super-Mare Lyndhurst Road 1100”. Just click on the tick box and a tick will appear to show you have selected the device.
The next step is to define the time series you wish to select. Select the next tab called “Select Dates for the data”. This will display a start Date Row and an End Date row. By default, it is set to display the previous 24 hours.
The start date defines where you want to start pulling data from. You can change this by clicking in the date box and a small calendar widget will appear where you can select a date. You can also define the time of the day to start by clicking in the start time box. This will show a list of times as 30 minute intervals. Repeat this process for the end date. In this example, we are going to select the previous week of data.
Once you are happy with the devices you have selected and the time series you wish to see click the button generate graphs. This will load a new page with the data displayed in graphs. See Section 2
Section 2 Viewing Data
Each unique sensor type has its own graph, if there are numerous sensors of the same type they will displayed in the same graph. A good example of this is temperature in the weather stations. You will see that each weather station has inside and outside temperature sensors.
When building graphs with numerous devices, each device will have its own set of colours. Each sensor within a sensor type will then be a different shade of that colour. As shown in the temperature graph.
- You can adjust the scaling on the X and Y axis. This is achieved by dragging the Square icons on slider located above and to the right of the graphs.
- (Map) By default a map is displayed to the side of the graph.
- (Legend) You can view the legend by using the legend tab. If you have numerous sensors within a graph you can select which series, you wish to show or hide on the graph.
- (Display) This is where you can select the graph type, currently we support line and scatter.
- (Time Zone) All devices upload data with a UTC time stamp. When the graphs are built your current time, zone is used which then adjusts the time series accordingly.
- We have included manual control so you can compare local times of devices in different time zones. For example, of you are comparing a weather station in the UK to one in Singapore. You would +8 hours to the device in Singapore or +7 depending on daylight saving
- (Stats) This shows different stats about each series.
- (Download) You can download the data for that graph as a CSV so it can be imported into programs such as Excel.