WSO2 IoT Server: Implementing Device Gateway Pattern using Android Device & XBee
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This document discusses implementing an IoT device gateway pattern using an Android TV box, XBee modules, and the WSO2 IoT platform. It shows how sensor data from devices connected to an XBee module on the TV box can be sent to the WSO2 IoT platform for edge analytics processing and monitoring/control of devices from the platform. Siddhi queries are presented that can analyze the sensor data locally on the Android TV box before sending results to the cloud. The document also describes how to connect the Android TV box to an XBee module using USB.
![@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](https://image.slidesharecdn.com/androidtvgatewayxbeeintegration-170712065716/85/WSO2-IoT-Server-Implementing-Device-Gateway-Pattern-using-Android-Device-XBee-15-320.jpg)
![@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](https://image.slidesharecdn.com/androidtvgatewayxbeeintegration-170712065716/85/WSO2-IoT-Server-Implementing-Device-Gateway-Pattern-using-Android-Device-XBee-16-320.jpg)
![@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](https://image.slidesharecdn.com/androidtvgatewayxbeeintegration-170712065716/85/WSO2-IoT-Server-Implementing-Device-Gateway-Pattern-using-Android-Device-XBee-17-320.jpg)
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
- 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