Thales IoT Developer Community

Cell ID based location / positioning with EHS6 and Combain

Showcase, April 5, 2016 - 1:52pm, 5911 views

Concept Board

GPRS

HSPA+

M2M

TCP/IP

GPS

Java

This is a simple demo to show how to get location information, of your device, (similar to GNSS positioning) without any GPS / Glonass satellites.

1. Sends serving cell ID information to Combain service over 2G / 3G
Receives Combain positioning data (Latitude,Longitude)
EHS6 SMS server makes data available to users

Benefits:
- Rough geographic position possible without GNSS
- Use Cell ID or even WiFi MAC addresses!
- Lower BOM costs and better battery life

Maps

SMS

Option 2: Below is some great work my collegaues did to get this informaiton using AT Commands:

-- AT Commands method on latest EHS6 rel 3

-- Register to the cellular network:

at+creg=2

at+cgreg=2

at+cops=0

+CREG: 1,"5278","01126C28",2

+CGREG: 4

+CGREG: 1,"5278","01126C28",2,"80"

-- Set up Module Internet Services:

at^sics=0,"conType","GPRS0"

at^sics=0,"apn","internet"

at^sisx="Ping",0,"8.8.8.8",4,2000

^SISX: "Ping", 1, 0, "8.8.8.8", 55

^SISX: "Ping", 1, 0, "8.8.8.8", 56

^SISX: "Ping", 1, 0, "8.8.8.8", 51

^SISX: "Ping", 1, 0, "8.8.8.8", 56

^SISX: "Ping", 2, 0, 4, 4, 0, 0

^SISX: "Ping", 3, 0, 51, 56, 54

at^sici?

^SICI: 0,2,0,"10.65.48.243“

-- Set up the Module's special Combain service parameters (new!)

at^srvcfg="CBL","key","x35xxxxxxxxxxxxxm7f4" <--- not a real key!

at^srvctl="CBL","Crd"

^SRVCTL: "CBL","Crd",0,87

-- Request that the module goes to the Combain service and tries to get location based on serving cell:

at^srvctl="CBL","Loc"

^SRVCTL: "CBL","Loc",0,51.507351,-0.127758 <-- location returned as (Latitude,Longitude)

+CREG: 1,"5278","01121DA0",2

-- Turn on Module's special Combain URC ability to track changes:

at^srvcfg="CBL","urc",1

at^srvctl="CBL","Start"

+CREG: 1,"5278","011232E2",2

^SRVCTL: "CBL","Loc",0,25.07211,121.57459,122 <-- location returned as (Latitude,Longitude) series

^SRVCTL: "CBL","Loc",0,25.07211,121.57459,122

-- Turn off module's Combain tracking URC output:

at^srvctl="CBL","Stop"

-- If you wonder how to build the attached Java ME source code, then please have a look at the Volcano Robot article to get you started:

"https://iot-developer.thalesgroup.com/tutorial/starting-out-java-me-volc..."

-- Java application does the same and sends position via SMS:

Combain Location via SMS demo

[Main]: Watchdog will do nothing if triggered.

[HardwareManager]: Configuration checks completed.

[Main]: Hardware interfaces allocated successfully.

[Main]: ------------ Settings from JAD ------------

[Main]: JAD combainKey: x35xxxxxxxxxxxxxm7f4

[Main]: JAD lookUpDelay: 35

[Main]: JAD connectionAPN: everywhere

[Main]: JAD connectionUser: esecure

[Main]: JAD connectionPass: null

[Main]: ------------------- end -------------------

[Combain]: Combain thread waiting to start.

...

[Combain]: http://www.google.co.uk/maps?t=h&q=52.03751,-0.69837, 9937

[ConnManager]: Kicked watchdog.

[Combain]: http://www.google.co.uk/maps?t=h&q=52.03751,-0.69837, 9936

[ConnManager]: Kicked watchdog.

[Combain]: http://www.google.co.uk/maps?t=h&q=52.03751,-0.69837, 9935

[ConnManager]: Kicked watchdog.

Download File 2016_03_10_Combain_Demo_EHSx.pdf (pdf | 1018.74 KB)

Download File src.zip (zip | 28.07 KB)

Comment

fuliu

May 18 2017 - 6:35am

Hello Simon,

Is it the same as EHS5 and EHS6 for Cell ID based Location use case?

Thanks.

Louis - TS China Gemalto

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mullengers

Nov 27 2017 - 12:02pm

EHS5 and EHS6 will return similar results and accuracies as each other.

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mullengers

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Cell ID based location / positioning with EHS6 and Combain

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