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Last modified by Karry Zhuang on 2025/07/03 11:59
From version 125.1
edited by Karry Zhuang
on 2024/04/30 16:28
Change comment: Uploaded new attachment "image-20240430162820-5.png", version {1}
To version 119.2
edited by Karry Zhuang
on 2024/04/30 16:14
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398 398  
399 399  === 3.2.1 The image packets are obtained by TTN ===
400 400  
401 -Make sure that node ACK is on: AT+PNACKMD=1 or 34 01
402 -
403 -Then send the graph instruction 0B 01.
404 -
405 -The next time the AIS Sensor device runs at the set time, it will start collecting image data.
406 -
407 -[[image:1714465192126-772.png||height="478" width="678"]]
408 -
409 -The uplink payload includes totally 208 bytes. Uplink packets use FPORT=3
410 -
411 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:370px" %)
412 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)**Size(bytes)(% style="display:none" %) (%%)**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)4|=(% style="width: 80px;background-color:#4F81BD;color:white" %)2|=(% style="width: 80px;background-color:#4F81BD;color:white" %)1|=(% style="width: 60px;background-color:#4F81BD;color:white" %)1|=(% style="width: 80px;background-color:#4F81BD;color:white" %)200
413 -|(% style="width:99px" %)Value|(% style="width:62px" %)sysTimeCurrent|BAT|total_packages|subcontracting_count|Image_date
414 -
415 -[[image:1714465532892-179.png||height="250" width="586"]]
416 -
417 -Example of the first payload（FPort=3）：663095C00BBE1000FFD8FFE000104A46494600010101004800480000FFDB0043001B12141714111B1716171E1C1B2028422B28252528513A3D3042605565645F555D5B6A7899816A7190735B5D85B586909EA3ABADAB6780BCC9BAA6C799A8ABA4FFDB0043011C1E1E2823284E2B2B4EA46E5D6EA4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4FFC0000B0800F0014001012200FFC4001F00000105010101010101000000000000000001020304050607
418 -
419 -==== 3.2.1.1sysTimeCurrent ====
420 -
421 -These four bytes contain the year, month, day, hour, minute, and second of the time.
422 -
423 -AI Sensor use Unix TimeStamp format based on.
424 -
425 -[[image:1714465658414-905.png||height="85" width="553"]]
426 -
427 -Users can get this time from the link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
428 -
429 -Below is the converter example
430 -
431 -EX: 663095C0=2024-04-30 06:54:57.
432 -
433 -[[image:1714465669043-619.png]]
434 -
435 -
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