WSO2 IoT Server: Implementing Device Gateway Pattern using Android Device & XBee

1. WSO2 IoT Server
Implementing Device Gateway Pattern using Android Device
& XBee
Sumedha Rubasinghe
Charitha Goonetilleke
June, 2017

2. 2
Solution Overview
NEXBOX A95X
XBee on USB explorer
Arduino with XBee shield
Relay module

3. 3
Device Gateway Pattern (N devices / 1 comm. module)
NEXBOX A95X
XBee on USB explorer
Arduino with XBee shield
Relay module
Device Gateway
Edge Devices
Communication
Module
Coordinator

4. 4
Device Gateway Pattern
NEXBOX A95X
XBee on USB explorer
Arduino with XBee shield
Relay module
Device Gateway
Device1
Device2
Device3
Wireless
Communication
Module
Edge Device

5. WSO2 Android Agent on Android TV Box
5

6. WSO2 IoT Platform
6
Device Instance Details Page

7. WSO2 IoT Platform
7
Device in location X
Control operations on
Android TV Box
Control operation for
configuring XBee devices
Device Instance Details Page

8. WSO2 IoT Platform
8
Sending Video URL
to a remote TV box

9. WSO2 IoT Platform
9
Sending message to
a remote TV box

10. WSO2 IoT Platform
10
Control messages to
XBee module
connected to TV box

11. WSO2 IoT Platform
11
Adding an edge
XBee device
(name,serial #)

12. WSO2 IoT Platform
12
Newly added edge device
Light bulb with control
operations ON/OFF

13. WSO2 IoT Platform
13

14. Edge Computing with Siddhi + Android
14
WSO2 Android Agent
WSO2 Siddhi

15. @Plan:name('edgeAnalytics')
define stream edgeDeviceEventStream (ac int, window int, light int, temperature float, humidity float, keycard int);
@info(name = 'alertQuery') from edgeDeviceEventStream[(1 == ac or 1 == window or 1 == light) and 0 == keycard]
select ac, window, light insert into alertOutputStream;
@info(name = 'temperatureQuery') from every te1=edgeDeviceEventStream, te2=edgeDeviceEventStream[te1.temperature != temperature ]
select te2.temperature insert into temperatureOutputStream;
@info(name = 'humidityQuery') from every he1=edgeDeviceEventStream, he2=edgeDeviceEventStream[he1.humidity != humidity ]
select he2.humidity insert into humidityOutputStream;
@info(name = 'acQuery') from every ae1=edgeDeviceEventStream, ae2=edgeDeviceEventStream[ae1.ac != ac ]
select ae2.ac insert into acOutputStream;
@info(name = 'windowQuery') from every we1=edgeDeviceEventStream, we2=edgeDeviceEventStream[we1.window != window ]
select we2.window insert into windowOutputStream;
@info(name = 'keycardQuery') from every ke1=edgeDeviceEventStream, ke2=edgeDeviceEventStream[ke1.keycard != keycard ]
select ke2.keycard insert into keycardOutputStream;
Sample query
15

16. @Plan:name('edgeAnalytics')
define stream edgeDeviceEventStream (ac int, window int, light int, temperature float,
humidity float, keycard int);
@info(name = 'alertQuery') from edgeDeviceEventStream[(1 == ac or 1 == window or 1 ==
light) and 0 == keycard]
select ac, window, light insert into alertOutputStream;
@info(name = 'temperatureQuery') from every te1=edgeDeviceEventStream,
te2=edgeDeviceEventStream[te1.temperature != temperature ]
select te2.temperature insert into temperatureOutputStream;
@info(name = 'humidityQuery') from every he1=edgeDeviceEventStream,
he2=edgeDeviceEventStream[he1.humidity != humidity ]
select he2.humidity insert into humidityOutputStream;
Sample query
16

17. @info(name = 'humidityQuery') from every he1=edgeDeviceEventStream,
he2=edgeDeviceEventStream[he1.humidity != humidity ]
select he2.humidity insert into humidityOutputStream;
@info(name = 'acQuery') from every ae1=edgeDeviceEventStream,
ae2=edgeDeviceEventStream[ae1.ac != ac ]
select ae2.ac insert into acOutputStream;
@info(name = 'windowQuery') from every we1=edgeDeviceEventStream,
we2=edgeDeviceEventStream[we1.window != window ]
select we2.window insert into windowOutputStream;
@info(name = 'keycardQuery') from every ke1=edgeDeviceEventStream,
ke2=edgeDeviceEventStream[ke1.keycard != keycard ]
select ke2.keycard insert into keycardOutputStream;
Sample query
17

18. private void findSerialPortDevice() {
// This snippet will try to open the first encountered usb device connected, excluding usb root hubs
HashMap<String, UsbDevice> usbDevices = usbManager.getDeviceList();
if (!usbDevices.isEmpty()) {
boolean keep = true;
for (Map.Entry<String, UsbDevice> entry : usbDevices.entrySet()) {
device = entry.getValue();
int deviceVID = device.getVendorId();
int devicePID = device.getProductId();
Log.d(TAG, "deviceVID: " + Integer.toHexString(deviceVID) + " devicePID: " +
Integer.toHexString(devicePID));
if (deviceVID == 0x0403 && devicePID == 0x6001) {
// There is a device connected to our Android device. Try to open it as a Serial Port.
requestUserPermission();
keep = false;
} else {
connection = null;
device = null;
}
Android to USB
18

19. THANK YOU
wso2.com