Changes for page AI Image Sensor Calibration
Last modified by Karry Zhuang on 2025/07/03 11:59
From version 151.1
edited by Karry Zhuang
on 2024/05/10 08:45
on 2024/05/10 08:45
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There is no comment for this version
To version 136.1
edited by Karry Zhuang
on 2024/04/30 16:52
on 2024/04/30 16:52
Change comment:
Uploaded new attachment "1714467134950-189.png", version {1}
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... ... @@ -339,9 +339,9 @@ 339 339 340 340 **Step 2**: Use ACT button to activate LHT52 and it will auto join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel. 341 341 342 -=== 3.1.1 Uplink Payload (Fport~= 2) ===342 +=== 3.1.1 Uplink Payload (Fport~=5) === 343 343 344 -The uplink payload includes totally 14 bytes. Uplink packets use FPORT= 2and (% style="color:#4472c4" %)**every 20 minutes**(%%) send one uplink by default.344 +The uplink payload includes totally 14 bytes. Uplink packets use FPORT=5 and (% style="color:#4472c4" %)**every 20 minutes**(%%) send one uplink by default. 345 345 346 346 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:370px" %) 347 347 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)**Size(bytes)(% style="display:none" %) (%%)**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)2|=(% style="width: 80px;background-color:#4F81BD;color:white" %)4|=(% style="width: 80px;background-color:#4F81BD;color:white" %)4|=(% style="width: 60px;background-color:#4F81BD;color:white" %)4 ... ... @@ -349,7 +349,7 @@ 349 349 350 350 [[image:1714374026505-898.png||height="200" width="736"]] 351 351 352 -Payload Example(FPort= 2):(% style="background-color:yellow" %)**0D 32 66 29 AF E0 00 00 00 02 00 05 E3 B0**352 +Payload Example(FPort=5):(% style="background-color:yellow" %)**0D 32 66 29 AF E0 00 00 00 02 00 05 E3 B0** 353 353 354 354 === 3.1.2 BAT- Battery information === 355 355 ... ... @@ -394,50 +394,85 @@ 394 394 395 395 == (% title="Click and drag to resize" %)3.2 Get Image and show in PC(%%) == 396 396 397 -To get the AIS current image on the PC, you can 397 +To get the AIS current image on the PC, you can issue commands through TTN or connect AIS to your PC with TTL to send commands through the serial port to obtain relevant data packets. 398 398 399 -=== (% id="cke_bm_3839S" style="display:none" %) (%%)3.2.1 The imagedate are obtained byserialport===399 +=== 3.2.1 The image packets are obtained by TTN === 400 400 401 - Selectthe corresponding baudrateand serial portnumber through the serial porttool, selectHEXdisplayand HEX send, and continuouslyreceive data from theAISSensor401 +Make sure that node ACK is on: AT+PNACKMD=1 or 34 01 402 402 403 - [[image:1714985699187-406.png||height="277"width="536"]]403 +Then send the graph instruction 0B 01. 404 404 405 - In theserial port to senddata C0 5A 00 00 00 00 04, and thensend C0 5A00 00 00 00 09, AIS Sensorwill sendareal-timeimage ofthedata packet,andthenstopsending.Startwith FFD8 and putit inTXT file405 +The next time the AIS Sensor device runs at the set time, it will start collecting image data. 406 406 407 -[[image:1714 985711524-251.png||height="140" width="526"]]407 +[[image:1714465192126-772.png||height="478" width="678"]] 408 408 409 +The uplink payload includes totally 208 bytes. Uplink packets use FPORT=3 409 409 410 -=== 3.2.2 Combined image === 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 411 411 412 - Onceall thedata has been uploaded to the TTN platform, the subsequent step involves concatenatingeachpacketin sequential order and savingitinto a newTXT file. Itis important to note that the first8bytes of each packet should be removed before concatenation.415 +[[image:1714465532892-179.png||height="250" width="586"]] 413 413 414 - When you combineall thepackets, youneedto convert thedatainside to binary. Here the conversion is demonstratedusing the [[WinHex>>http://www.x-ways.net/winhex/index-m.html]] software.417 +Example of the first payload(FPort=3):663095C00BBE1000FFD8FFE000104A46494600010101004800480000FFDB0043001B12141714111B1716171E1C1B2028422B28252528513A3D3042605565645F555D5B6A7899816A7190735B5D85B586909EA3ABADAB6780BCC9BAA6C799A8ABA4FFDB0043011C1E1E2823284E2B2B4EA46E5D6EA4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4FFC0000B0800F0014001012200FFC4001F00000105010101010101000000000000000001020304050607 415 415 416 - OpenWinHex to openhecombined image data file.419 +==== 3.2.1.1sysTimeCurrent ==== 417 417 418 - [[image:1714467040612-103.png||height="134"width="649"]]421 +These four bytes contain the year, month, day, hour, minute, and second of the time. 419 419 420 - Clickontheeditoptiontochooseandconvert.423 +AI Sensor use Unix TimeStamp format based on. 421 421 422 -[[image:171446 7065723-178.png||height="349" width="762"]]425 +[[image:1714465658414-905.png||height="85" width="553"]] 423 423 424 - ChoosetheHexASCII->BinaryoptionandthenclickOK.427 +Users can get this time from the link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] : 425 425 426 - [[image:1714467089355-837.png||height="366"width="336"]]429 +Below is the converter example 427 427 428 - Aftertheconversion is finished, click on "File" and choose "Save As".431 +EX: 663095C0=2024-04-30 06:54:57. 429 429 430 -[[image: 1714467112365-676.png]]433 +[[image:image-20240430162820-5.png||height="218" width="532"]] 431 431 432 - Saveas a.jpgfileand click OKto generate a JPG file.435 +==== 3.2.1.2 BAT- Battery information ==== 433 433 434 - [[image:1714467126476-110.png]]437 +These two bytes of BAT include the battery state and the actual voltage. 435 435 436 - Open the saved JPG file to display thetransmitted by theAIS Sensor throughheserial port.439 +[[image:image-20240430163600-8.png||height="50" width="1141"]] 437 437 438 - [[image:1714467134950-189.png]]441 +**Ex**:0X0BBE= 3006 mv 439 439 440 -=== === 443 +==== ==== 441 441 445 +==== 3.2.1.3 total_packages ==== 442 442 443 -= = 447 +This byte represents the total number of packets for the image fetched this time. 448 + 449 +[[image:image-20240430163626-9.png||height="47" width="1116"]] 450 + 451 +==== ==== 452 + 453 +==== 3.2.1.4 subcontracting_count ==== 454 + 455 +This byte represents the data number of the image packet retrieved 456 + 457 +[[image:image-20240430163738-10.png||height="44" width="1117"]] 458 + 459 + 460 +==== 3.2.1.5 Image_date ==== 461 + 462 +Apart from the eight bytes mentioned above, the next 200 bytes are all image data. 463 + 464 +Example the first packet:663095C00BBE1000FFD8FFE000104A46494600010101004800480000FFDB0043001B12141714111B1716171E1C1B2028422B28252528513A3D3042605565645F555D5B6A7899816A7190735B5D85B586909EA3ABADAB6780BCC9BAA6C799A8ABA4FFDB0043011C1E1E2823284E2B2B4EA46E5D6EA4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4FFC0000B0800F0014001012200FFC4001F00000105010101010101000000000000000001020304050607 465 + 466 +Image_date=FFD8FFE000104A46494600010101004800480000FFDB0043001B12141714111B1716171E1C1B2028422B28252528513A3D3042605565645F555D5B6A7899816A7190735B5D85B586909EA3ABADAB6780BCC9BAA6C799A8ABA4FFDB0043011C1E1E2823284E2B2B4EA46E5D6EA4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4FFC0000B0800F0014001012200FFC4001F00000105010101010101000000000000000001020304050607 467 + 468 + 469 +==== 3.2.1.6 Combined image ==== 470 + 471 +Once all the data has been uploaded to the TTN platform, the subsequent step involves concatenating each packet in sequential order and saving it into a new TXT file. It is important to note that the first 8 bytes of each packet should be removed before concatenation. 472 + 473 +When you combine all the packets, you need to convert the data inside to binary. Here the conversion is demonstrated using the [[WinHex>>http://www.x-ways.net/winhex/index-m.html]] software. 474 + 475 + 476 + 477 + 478 +
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