Difference between revisions of "Custom Settings"

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<code>"tag_1": 2542</code>
 
<code>"tag_1": 2542</code>
  
<code>},<code>{</code></code>
+
<code>},{</code>
  
<code><code>"thing_key": "jt77eczb2d",</code></code>
+
<code>"thing_key": "jt77eczb2d",</code>
  
<code><code>"timestamp": 1641561474357,</code></code>
+
<code>"timestamp": 1641561474357,</code>
  
<code><code>"data": {</code></code>
+
<code>"data": {</code>
  
<code><code>"tag_1": 2542</code></code>
+
<code>"tag_1": 2542</code>
  
 
<code>},</code>
 
<code>},</code>
Line 51: Line 51:
 
<code>}</code>
 
<code>}</code>
  
'''Calculation : total time taken from scanning to send = (Send timestamp - Scan timestamp) + (current received timestamp) - (Send timestamp)'''.
+
Total time taken to deliver a data-package to destination that is time from scanning the very first thing data of the packet to till the acknowledge from the destination. To elaborate if data-package send timestamp is Send Timestamp[data-package], scan timestamp of very first thing data in the packet is Scan Timestamp[Thing1], time at which acknowledge received to Edge is Received Timestamp(acknowledge) then
  
Scan Timestamp : timestamp under each thing object.
+
'''Total time = (Send Timestamp[data-package] - Scan Timestamp[Thing1]) + (Received Timestamp[acknowledge] - Send Timestamp[data-package])'''
 
 
Send Timestamp : timestamp to the end of package.
 
 
 
Current Received Timestamp : the AWS timestamp when data is received on the platform.
 
 
 
Total time taken from scan to send data-package is the time difference between data-package timestamp and scan timestamp of very first thing data inside data package
 

Latest revision as of 08:10, 30 March 2022

Edge AWS IoT Configuration

  • Setup the AWS IoT Core account and download the certificate, AmazonCA1 and private key.
  • Open Cloud Services and go to the AWS IoT Service Tab.
  • Edit All the Necessary fields like aws-endpoint, private key etc.
  • Select AWS from the edge.data-destination dropdown menu (This determines where to send data like to datonis or aws). AWS IoT Service Tab.jpg
  • Go to EdgeDataService Tab and change connect.use-http-transport to true to use the AWS IoT Service.
  • Use HTTP Transport.jpg
  • Done.

AWS IoT Latency Calculation

Edge Sends a data-package to the AWS, each data-package can have multiple things data. The number of things data in a data-package can be configured through bulk_size. A data-package contains timestamp when it is ready to send whereas thing data contains individual thing scan timestamp, thing key, and data array.

Following will be the format for data :

{

"events": [

{

"thing_key": "ft26ecabad",

"timestamp": 1641561474351,

"data": {

"tag_1": 2542

},{

"thing_key": "jt77eczb2d",

"timestamp": 1641561474357,

"data": {

"tag_1": 2542

},

"data_faas_function": "",

"type": "data"

}

],

"timestamp": 1641795756303

}

Total time taken to deliver a data-package to destination that is time from scanning the very first thing data of the packet to till the acknowledge from the destination. To elaborate if data-package send timestamp is Send Timestamp[data-package], scan timestamp of very first thing data in the packet is Scan Timestamp[Thing1], time at which acknowledge received to Edge is Received Timestamp(acknowledge) then

Total time = (Send Timestamp[data-package] - Scan Timestamp[Thing1]) + (Received Timestamp[acknowledge] - Send Timestamp[data-package])