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Last modified by Karry Zhuang on 2025/07/03 11:59
From version 135.1
edited by Karry Zhuang
on 2024/04/30 16:52
Change comment: Uploaded new attachment "1714467126476-110.png", version {1}
To version 145.2
edited by Karry Zhuang
on 2024/05/06 17:31
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396 396  
397 397  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 -=== 3.2.1 The image packets are obtained by TTN ===
399 +=== 3.2.1 The image date are obtained by TTN ===
400 400  
401 401  Make sure that node ACK is on: AT+PNACKMD=1 or 34 01
402 402  
... ... @@ -416,6 +416,8 @@
416 416  
417 417  Example of the first payload（FPort=3）：663095C00BBE1000FFD8FFE000104A46494600010101004800480000FFDB0043001B12141714111B1716171E1C1B2028422B28252528513A3D3042605565645F555D5B6A7899816A7190735B5D85B586909EA3ABADAB6780BCC9BAA6C799A8ABA4FFDB0043011C1E1E2823284E2B2B4EA46E5D6EA4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4FFC0000B0800F0014001012200FFC4001F00000105010101010101000000000000000001020304050607
418 418  
419 +==== ====
420 +
419 419  ==== 3.2.1.1sysTimeCurrent ====
420 420  
421 421  These four bytes contain the year, month, day, hour, minute, and second of the time.
... ... @@ -440,8 +440,6 @@
440 440  
441 441  **Ex**：0X0BBE= 3006 mv
442 442  
443 -==== ====
444 -
445 445  ==== 3.2.1.3 total_packages ====
446 446  
447 447  This byte represents the total number of packets for the image fetched this time.
... ... @@ -448,8 +448,6 @@
448 448  
449 449  [[image:image-20240430163626-9.png||height="47" width="1116"]]
450 450  
451 -==== ====
452 -
453 453  ==== 3.2.1.4 subcontracting_count ====
454 454  
455 455  This byte represents the data number of the image packet retrieved
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472 472  
473 473  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.
474 474  
473 +Open WinHex to open the combined image data file.
475 475  
475 +[[image:1714467040612-103.png||height="134" width="649"]]
476 476  
477 +Click on the edit option to choose and convert.
477 477  
478 -
479 +[[image:1714467065723-178.png||height="349" width="762"]]
480 +
481 +Choose the Hex ASCII->Binary option and then click OK.
482 +
483 +[[image:1714467089355-837.png||height="366" width="336"]]
484 +
485 +After the conversion is finished, click on "File" and choose "Save As".
486 +
487 +[[image:1714467112365-676.png]]
488 +
489 +Save as a.jpg file and click OK to generate a JPG file.
490 +
491 +[[image:1714467126476-110.png]]
492 +
493 +Open the saved JPG file to display the image transmitted by the AIS Sensor through the serial port.
494 +
495 +[[image:1714467134950-189.png]]
496 +
497 +=== 3.2.2 The image date are obtained by serial port ===
498 +
499 +Select the corresponding baud rate and serial port number through the serial port tool, select HEX display and HEX send, and continuously receive data from the AIS Sensor
500 +
501 +[[image:1714985699187-406.png||height="277" width="536"]]
502 +
503 +In the serial port to send data C0 5A 00 00 00 00 04, and then send C0 5A 00 00 00 00 09, AIS Sensor will send a real-time image of the data packet, and then stop sending. Start with FFD8 and put it in TXT file
504 +
505 +[[image:1714985711524-251.png||height="140" width="526"]]
506 +
507 +Then follow the instructions in 3.2.1.6 to get the image from AIS Sensor.
508 +
509 +
510 += 4. Configure AIS Sensor using AT commands =
511 +
512 +== 4.1 System Management Commands ==
513 +
514 +=== 4.1.1 Change Uplink Interval ===
515 +
516 +
517 +Feature: Change LoRaWAN End Node Transmit Interval.
518 +
519 +
520 +(% style="color:blue" %)**AT Command: AT+TDC**
521 +
522 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:727.222px" %)
523 +|(% style="background-color:#4f81bd; color:white; width:165px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:227px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:329px" %)**Response**
524 +|(% style="width:165px" %)AT+TDC=?|(% style="width:227px" %)Show current transmit Interval|(% style="width:329px" %)30000(((
525 +OK
526 +
527 +the interval is 30000ms = 30s
528 +)))
529 +|(% style="width:165px" %)AT+TDC=60000|(% style="width:227px" %)Set Transmit Interval|(% style="width:329px" %)OK(((
530 +Set transmit interval to 60000ms = 60 seconds
531 +)))
532 +
533 +(((
534 +(% style="color:blue" %)**Downlink Command: 0x01**
535 +
536 +Format: Command Code (0x01) followed by 3 bytes time value.
537 +)))
538 +
539 +(((
540 +If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
541 +)))
542 +
543 +* **Example 1**: Downlink Payload:** 0100001E**  ~/~/ Set Transmit Interval (TDC) = 30 seconds
544 +
545 +* **Example 2**: Downlink Payload:** 0100003C**  ~/~/ Set Transmit Interval (TDC) = 60 seconds
546 +
547 +(% style="display:none" %) (%%)
548 +
549 +== 4.1.2 Request the server to send an ACK ==
550 +
551 +
552 +(% style="color:blue" %)**AT Command: AT+PNACKMD**
553 +
554 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:889px" %)
555 +|(% style="background-color:#4f81bd; color:white; width:160px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:627px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:100px" %)**Response**
556 +|(% style="width:160px" %)AT+PNACKMD=1|(% style="width:627px" %)If the node uploads the ACK as confirm, it will request the server to send an ACK. If the server ack is not received, the node will upload the packets that have not received the ACK the next time it receives the ACK|(% style="width:100px" %)1(((
557 +OK
558 +)))
559 +|(% style="width:160px" %)AT+PNACKMD=0|(% style="width:627px" %)off request the server to send an ACK|(% style="width:100px" %)(((
560 +0
561 +OK
562 +)))
563 +
564 +(% style="display:none" %) (%%) (% style="color:blue" %)**Downlink Command: 0x34**
565 +
566 +0X34 01  ~/~/Same As AT+PNACKMD=1
567 +
568 +0x34 00  ~/~/Same As AT+PNACKMD=0
569 +
570 +
571 +=== 4.1.3 Set Interrupt Mode ===
572 +
573 +
574 +Feature, Set Interrupt mode for GPIO_EXIT.
575 +
576 +(% style="color:blue" %)**AT Command: AT+INTMOD1,AT+INTMOD2,AT+INTMOD3**
577 +
578 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
579 +|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
580 +|(% style="width:154px" %)AT+INTMOD1=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
581 +0
582 +OK
583 +the mode is 0 =Disable Interrupt
584 +)))
585 +|(% style="width:154px" %)AT+INTMOD1=2|(% style="width:196px" %)(((
586 +Set Transmit Interval
587 +0. (Disable Interrupt),
588 +~1. (Trigger by rising and falling edge)
589 +2. (Trigger by falling edge)
590 +3. (Trigger by rising edge)
591 +)))|(% style="width:157px" %)OK
592 +|(% style="width:154px" %)AT+INTMOD2=3|(% style="width:196px" %)Set Transmit Interval
593 +0. (Disable Interrupt),
594 +~1. (Trigger by rising and falling edge)
595 +2. (Trigger by falling edge)
596 +3. (Trigger by rising edge)|(% style="width:157px" %)OK
597 +
598 +(% style="color:blue" %)**Downlink Command: 0x06**
599 +
600 +Format: Command Code (0x06) followed by 3 bytes.
601 +
602 +This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
603 +
604 +* Example 1: Downlink Payload: 06000000  **~-~-->**  AT+INTMOD1=0
605 +* Example 2: Downlink Payload: 06000003  **~-~-->**  AT+INTMOD1=3
606 +* Example 3: Downlink Payload: 06000102  **~-~-->**  AT+INTMOD2=2
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