The Smart Device Specification for Remote Labs

THE SMART DEVICE SPECIFICATION

FOR REMOTE LABSChristophe Salzmann, Sten Govaerts,

Wissam Halimi, & Denis GilletAnjo Anjewierden, Lars Bollen, Augustín Caminero, Manuel Castro, German Carro, Gabriel Díaz, Danilo Garbi Zutin, Miguel Latorre, Irene Lequerica Zorrozua, Pablo Orduna, Antonio Robles, Elio San Crístobal, and Simon Schwantzer

AGENDA

• What are Smart Devices?• What do we want to achieve?• The specification• An example• Implementation• Conclusion

SMART DEVICES?

Internet of Things

SMART DEVICES?

Internet of Things

SMART DEVICES?

Internet of Things

SMART DEVICES?

Internet of Things

SMART DEVICES?

1. communication2. sensing & actuating3. reasoning & learning4. identity & kind5. memory & status tracking

Smart Devices are connected to the internet with some or all of these capabilities:

Thompson, C.W., "Smart devices and soft controllers," Internet Computing, IEEE , 2005.

…we extended this idea for remote labs.

client server

CLASSIC CLIENT-SERVER

client server

CLASSIC CLIENT-SERVERclient often tightly linked to server

client server

CLASSIC CLIENT-SERVERclient often tightly linked to server clients cannot

be reused

client server

CLASSIC CLIENT-SERVERclient often tightly linked to server

server updates often require client updates

clients cannot be reused

client server

CLASSIC CLIENT-SERVERclient often tightly linked to server

server updates often require client updates

clients cannot be reused

client server

CLASSIC CLIENT-SERVERclient often tightly linked to server

server updates often require client updates

clients cannot be reused

client server

SMART DEVICE

client server

SMART DEVICE

client serversmart device speci-

fication

SMART DEVICE

client serversmart device speci-

fication

SMART DEVICE

client serversmart device speci-

fication

data viewer

app

SMART DEVICE

client serversmart device speci-

fication

data viewer

app

learning analytics

client

SMART DEVICE

client serversmart device speci-

fication

data viewer

app

learning analytics

client

metadata repository

SMART DEVICE

client serversmart device speci-

fication

data viewer

app

learning analytics

client

metadata repository

SMART DEVICE

implementation agnostic

SMART DEVICES IN

THE SPECIFICATION

• services, e.g. to control actuators & sensors

• service description and metadata

…consists of:

and:• internal functionality best practices & guidelines• easily extensible with new services

TECHNOLOGY

WebSocket Swaggerhttp://swagger.io/

https://github.com/go-lab/smart-device-metadata

TECHNOLOGY

WebSocket Swaggerhttp://swagger.io/

https://github.com/go-lab/smart-device-metadata

🔧

TECHNOLOGY

WebSocket Swagger

the specification is programming language agnostic

http://swagger.io/

https://github.com/go-lab/smart-device-metadata

🔧

METADATA CHARACTERISTICS

• lab info & lab owner• concurrency & authorization• provided services & API info

• sensor & actuator metadata is a service

The metadata describes:

…and:

SERVICES & FUNCTIONALITYSERVICES

SERVICES & FUNCTIONALITY

getSensorMetadata

getSensorData

getActuatorMetadata

sendActuatorData

getLoggingInfo

getClients

getModels

SERVICES

SERVICES & FUNCTIONALITY

getSensorMetadata

getSensorData

getActuatorMetadata

sendActuatorData

getLoggingInfo

getClients

getModels

SERVICES FUNCTIONALITY

SERVICES & FUNCTIONALITY

getSensorMetadata

getSensorData

getActuatorMetadata

sendActuatorData

getLoggingInfo

getClients

getModels

SERVICES FUNCTIONALITYauthentication

self and known state*

security and local control*

logging and alarms

local simulation

AN EXAMPLEclient smart device

… …

AN EXAMPLEclient smart device

Hey! What can you do?http://serverIP/metadata

… …

AN EXAMPLEclient smart device

Hey! What can you do?http://serverIP/metadata

{ name…, “services”: […], …}Here is what I do!

… …

AN EXAMPLEclient smart device

Hey! What can you do?http://serverIP/metadata

{ name…, “services”: […], …}Here is what I do!

services=[…]

… …

AN EXAMPLEclient smart device

Hey! What can you do?http://serverIP/metadata

{ name…, “services”: […], …}Here is what I do!

Which sensors do you have?{“method”: “getSensorMetadata”}

services=[…]

… …

AN EXAMPLEclient smart device

Hey! What can you do?http://serverIP/metadata

{ name…, “services”: […], …}Here is what I do!

Which sensors do you have?{“method”: “getSensorMetadata”}

services=[…]

{“method”:“getSensorMetadata”, “sensors": [ { "sensorId": “disc pos”, "values": [

{…"rangeMinimum": 0, "rangeMaximum": 10,…} ],…}

These are my sensors:

… …

AN EXAMPLEclient smart device

Hey! What can you do?http://serverIP/metadata

{ name…, “services”: […], …}Here is what I do!

Which sensors do you have?{“method”: “getSensorMetadata”}

services=[…]

{“method”:“getSensorMetadata”, “sensors": [ { "sensorId": “disc pos”, "values": [

{…"rangeMinimum": 0, "rangeMaximum": 10,…} ],…}

These are my sensors:sensors=[{ id:“disc pos”,min:0,max:10}]; … …

AN EXAMPLE CONTINUED

client

… …

smart device

AN EXAMPLE CONTINUED

clientWhich actuators do you have?

{“method”: “getActuatorMetadata”}

… …

smart device

AN EXAMPLE CONTINUED

clientWhich actuators do you have?

{“method”: “getActuatorMetadata”}

{“method”:“getActuatorMetadata”, “actuators": [{ ”actuatorId": “motor”, …"values": [

{…"rangeMinimum": -5, "rangeMaximum": 5,…} ]}

These are my actuators:

… …

smart device

AN EXAMPLE CONTINUED

clientWhich actuators do you have?

{“method”: “getActuatorMetadata”}

{“method”:“getActuatorMetadata”, “actuators": [{ ”actuatorId": “motor”, …"values": [

{…"rangeMinimum": -5, "rangeMaximum": 5,…} ]}

These are my actuators:actuators=[{id:“motor”,min:-5,max:5}];

… …

smart device

AN EXAMPLE CONTINUED

clientWhich actuators do you have?

{“method”: “getActuatorMetadata”}

{“method”:“getActuatorMetadata”, “actuators": [{ ”actuatorId": “motor”, …"values": [

{…"rangeMinimum": -5, "rangeMaximum": 5,…} ]}

These are my actuators:actuators=[{id:“motor”,min:-5,max:5}];

Yay! I can make a UI!

… …

smart device

AN EXAMPLE CONTINUED

clientWhich actuators do you have?

{“method”: “getActuatorMetadata”}

{“method”:“getActuatorMetadata”, “actuators": [{ ”actuatorId": “motor”, …"values": [

{…"rangeMinimum": -5, "rangeMaximum": 5,…} ]}

These are my actuators:actuators=[{id:“motor”,min:-5,max:5}];

Yay! I can make a UI!

motor:

disc pos:

… …

smart device

AN EXAMPLE CONTINUED

clientWhich actuators do you have?

{“method”: “getActuatorMetadata”}

{“method”:“getActuatorMetadata”, “actuators": [{ ”actuatorId": “motor”, …"values": [

{…"rangeMinimum": -5, "rangeMaximum": 5,…} ]}

These are my actuators:actuators=[{id:“motor”,min:-5,max:5}];

Yay! I can make a UI!

motor:

disc pos:

… …

Give me the current disc pos…{“method”:“getSensorData”, “sensorId”: “disc pos”}

smart device

AN EXAMPLE CONTINUED

client

… …

smart device

AN EXAMPLE CONTINUED

client

… …

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[6.2], “lastMeasured”:[“18:28”]…}

smart device

AN EXAMPLE CONTINUED

client

… …

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[6.2], “lastMeasured”:[“18:28”]…}motor:

disc pos:6.2

smart device

AN EXAMPLE CONTINUED

client

… …

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[6.2], “lastMeasured”:[“18:28”]…}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[7.1], “lastMeasured”:[“18:30”]…}

motor:

disc pos:6.2

smart device

AN EXAMPLE CONTINUED

client

… …

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[6.2], “lastMeasured”:[“18:28”]…}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[7.1], “lastMeasured”:[“18:30”]…}

motor:

disc pos:6.2

motor:

disc pos:7.1

smart device

AN EXAMPLE CONTINUED

client

… …

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[6.2], “lastMeasured”:[“18:28”]…}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[7.1], “lastMeasured”:[“18:30”]…}

motor:

disc pos:6.2

motor:

disc pos:7.1

…

smart device

AN EXAMPLE CONTINUED

client

… …

Set the motor to 3{“authToken”:”42FE36”, method”:“sendActuatorData”,

“actuatorId”: “motor”,…“data”:[3], …}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[6.2], “lastMeasured”:[“18:28”]…}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[7.1], “lastMeasured”:[“18:30”]…}

motor:

disc pos:6.2

motor:

disc pos:7.1

…

smart device

AN EXAMPLE CONTINUED

client

… …

Set the motor to 3{“authToken”:”42FE36”, method”:“sendActuatorData”,

“actuatorId”: “motor”,…“data”:[3], …}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[6.2], “lastMeasured”:[“18:28”]…}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[7.1], “lastMeasured”:[“18:30”]…}

motor:

disc pos:6.2

motor:

disc pos:7.1

…

smart device

AN EXAMPLE CONTINUED

client

… …

Set the motor to 3{“authToken”:”42FE36”, method”:“sendActuatorData”,

“actuatorId”: “motor”,…“data”:[3], …}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[6.2], “lastMeasured”:[“18:28”]…}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[7.1], “lastMeasured”:[“18:30”]…}

motor:

disc pos:6.2

motor:

disc pos:7.1

…

auth

entic

ate(

42FE

36)

smart device

AN EXAMPLE CONTINUED

client

… …

Set the motor to 3{“authToken”:”42FE36”, method”:“sendActuatorData”,

“actuatorId”: “motor”,…“data”:[3], …}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[6.2], “lastMeasured”:[“18:28”]…}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[7.1], “lastMeasured”:[“18:30”]…}

motor:

disc pos:6.2

motor:

disc pos:7.1

…

auth

entic

ate(

42FE

36)

YES!

smart device

AN EXAMPLE CONTINUED

client

… …

Set the motor to 3{“authToken”:”42FE36”, method”:“sendActuatorData”,

“actuatorId”: “motor”,…“data”:[3], …}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[6.2], “lastMeasured”:[“18:28”]…}

Here is the current position:{“method”:“getSensorData”, “sensorId”: “disc pos”,

“data”:[7.1], “lastMeasured”:[“18:30”]…}

motor:

disc pos:6.2

motor:

disc pos:7.1

…

auth

entic

ate(

42FE

36)

set motor to 3

YES!

smart device

BUT…IS IT A SMART DEVICE?

1. communication2. sensing & actuating3. reasoning & learning4. identity & kind5. memory & status tracking

Smart Devices are connected to the internet with some or all of these capabilities:

BUT…IS IT A SMART DEVICE?

1. communication2. sensing & actuating3. reasoning & learning4. identity & kind5. memory & status tracking

Smart Devices are connected to the internet with some or all of these capabilities:

✔

BUT…IS IT A SMART DEVICE?

1. communication2. sensing & actuating3. reasoning & learning4. identity & kind5. memory & status tracking

Smart Devices are connected to the internet with some or all of these capabilities:

✔✔

BUT…IS IT A SMART DEVICE?

1. communication2. sensing & actuating3. reasoning & learning4. identity & kind5. memory & status tracking

Smart Devices are connected to the internet with some or all of these capabilities:

✔

✘✔

BUT…IS IT A SMART DEVICE?

1. communication2. sensing & actuating3. reasoning & learning4. identity & kind5. memory & status tracking

Smart Devices are connected to the internet with some or all of these capabilities:

✔

✘✔

✔

BUT…IS IT A SMART DEVICE?

1. communication2. sensing & actuating3. reasoning & learning4. identity & kind5. memory & status tracking

Smart Devices are connected to the internet with some or all of these capabilities:

✔

✘✔

✔✔✘

IMPLEMENTATION

https://github.com/go-lab/smart-device

IMPLEMENTATION

https://github.com/go-lab/smart-device

IMPLEMENTATION

https://github.com/go-lab/smart-device

http

://go

labz.e

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http

://go

labz.e

u

http

://go

labz.e

u

http

://go

labz.e

u

http

://go

labz.e

u

…WHAT IF YOU DO NOT WANT TO REIMPLEMENT YOUR LAB?

client legacy lab server

…WHAT IF YOU DO NOT WANT TO REIMPLEMENT YOUR LAB?

then go with Gateway4Labs!

https://github.com/gateway4labs

client legacy lab server

…WHAT IF YOU DO NOT WANT TO REIMPLEMENT YOUR LAB?

then go with Gateway4Labs!

https://github.com/gateway4labs

client legacy lab server

smart gateway

…WHAT IF YOU DO NOT WANT TO REIMPLEMENT YOUR LAB?

then go with Gateway4Labs!

https://github.com/gateway4labs

client legacy lab server

smart gateway

…WHAT IF YOU DO NOT WANT TO REIMPLEMENT YOUR LAB?

then go with Gateway4Labs!

https://github.com/gateway4labs

client legacy lab server

smart gateway

acts as a smart device!

CONCLUSION• the Smart Device specification decouples client-

server through well-defined services & metadata, creating:• interoperability between clients and other Smart Devices• a machine readable specification that allows

the generation of simple client UIs

• platform agnostic & implementationsare available

STANDARDISATION• the specification is taken up by the IEEE working

group P1876 as a candidate for the final spec.

http://ieee-sa.centraldesktop.com/1876public/

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contact: [email protected]